阅读说明：本技术 一种多级分离自控速式重质碳酸钙的制备工艺 (Preparation process of multi-stage separation self-control speed type heavy calcium carbonate ) 是由 冯越 于 2021-06-18 设计创作，主要内容包括：本发明公开了一种多级分离自控速式重质碳酸钙的制备工艺,属于碳酸钙制备领域,一种多级分离自控速式重质碳酸钙的制备工艺,包括如下步骤：预挑选；粗破碎；研磨制粉；一级分离；重新研磨；二级分离；三级分离；分级包装,可以通过在进行相对应级别分离前,通过加速管道和减速管道对气流的速度进行调节,有效保证重质碳酸钙分离的效果,对分离设备进行保护,进而使得重质碳酸钙能够正常制备,提高制备质量,并且能够有效省去后续分离过程增气提速的步骤,在减少外部气流对分离设备内部气流进行冲击和影响的同时,有效节省压缩机的投入和能量损耗,降低重质碳酸钙的制备成本,提高其的经济效益。(The invention discloses a preparation process of multi-stage separation self-control speed type heavy calcium carbonate, belonging to the field of calcium carbonate preparation, and the preparation process of the multi-stage separation self-control speed type heavy calcium carbonate comprises the following steps: pre-selecting; coarse crushing; grinding to prepare powder; first-stage separation; regrinding; secondary separation; three-stage separation; hierarchical packing, can be through before carrying out corresponding rank separation, adjust the speed of air current through accelerating tube way and speed reduction pipeline, effectively guarantee the effect of heavy calcium carbonate separation, protect splitter, and then make heavy calcium carbonate can normally prepare, improve the preparation quality, and can effectively save follow-up separation process step of increasing gas and speeding, when reducing outside air current and assault and influence the inside air current of splitter, effectively save the input and the energy loss of compressor, reduce the preparation cost of heavy calcium carbonate, improve its economic benefits.)

1. A preparation process of multi-stage separation self-control speed type heavy calcium carbonate is characterized by comprising the following steps: the method comprises the following steps:

s1, pre-selecting: screening the stone material to screen gangue mixed in the stone material;

s2, coarse crushing: coarsely crushing the pre-selected stone materials into granules;

s3, grinding to prepare powder: grinding the granular stone to obtain fine powder;

s4, primary separation: introducing the fine grinding powder into a grading device, performing primary separation, and separating the fine grinding powder with a larger diameter;

s5, regrinding: conveying the fine grinding powder with larger diameter discharged in the primary separation to step S3 for re-grinding;

s6, secondary separation: the gas with dust discharged in the first-stage separation passes through an accelerating pipeline (10), the flowing speed of the gas is increased, and then the gas is introduced into a grading device for second-stage separation, and fine grinding powder with medium diameter is separated out;

s7, three-stage separation: gas with dust discharged in the second-stage separation passes through a speed reduction pipeline (20), the flowing speed of the gas is reduced, and then the gas is introduced into a grading device for third-stage separation, and the milled powder with smaller diameter is separated;

s8, grading and packaging: and (4) grading and packaging the medium-diameter fine ground powder separated in the step S6 and the small-diameter ground powder separated in the step S7, and storing the graded and packaged ground powders in a warehouse respectively.

2. The process for preparing multi-stage separation self-speed control heavy calcium carbonate according to claim 1, which is characterized in that: pipeline (10) and speed reduction pipeline (20) inner wall equal fixedly connected with sectional type electromagnetism lantern ring (1) accelerate, sectional type electromagnetism lantern ring (1) inner wall is connected with flexible magnetic force speed governing cover (2), be connected with a plurality of resilience speed governing subassembly (5) that are the circumference and distribute between flexible magnetic force speed governing cover (2) and speed governing clearance arc piece (3), flexible magnetic force speed governing cover (2) inner wall fixedly connected with slips the resistant guide pin bushing (4) of wall.

3. The process for preparing multi-stage separation self-speed control heavy calcium carbonate according to claim 2, which is characterized in that: the flexible magnetic speed regulating sleeve is positioned in the accelerating pipeline (10), the left end and the right end of the flexible magnetic speed regulating sleeve (2) are fixedly connected with speed regulating gap arc blocks (3), and the speed regulating gap arc blocks (3) are fixedly connected with the corresponding sectional type electromagnetic sleeve ring (1) and the sliding wall tolerance guide sleeve (4) respectively.

4. The process for preparing multi-stage separation self-speed control heavy calcium carbonate according to claim 3, which is characterized in that: the number of turns of coils in the sectional type electromagnetic sleeve ring (1) in the accelerating pipeline (10) is arranged in a normal distribution curve form from left to right, and the magnetic pole direction of the flexible magnetic speed regulating sleeve (2) in the accelerating pipeline (10) is the same as that of the sectional type electromagnetic sleeve ring (1) after being electrified.

5. The process for preparing multi-stage separation self-speed control heavy calcium carbonate according to claim 2, which is characterized in that: the flexible magnetic speed regulation sleeve is characterized in that the flexible magnetic speed regulation sleeve (2) is fixedly connected with a speed regulation gap arc block (3) at the left end and is positioned in the speed reduction pipeline (20), a contraction type gap arc block (6) is fixedly connected at the right end of the flexible magnetic speed regulation sleeve (2), and the speed regulation gap arc block (3) and the contraction type gap arc block (6) are fixedly connected with a corresponding sectional type electromagnetic sleeve ring (1) and a sliding wall resistance guide sleeve (4) respectively.

6. The process for preparing multi-stage separation self-speed control heavy calcium carbonate according to claim 5, which is characterized in that: the number of turns of coils in the sectional type electromagnetic lantern ring (1) in the speed reducing pipeline (20) is sequentially and incrementally arranged from left to right, and the direction of a magnetic pole of the flexible magnetic speed regulating sleeve (2) in the speed reducing pipeline (20) is opposite to the direction of a magnetic pole of the sectional type electromagnetic lantern ring (1) after the power is on.

7. The process for preparing multi-stage separation self-speed control heavy calcium carbonate according to claim 2, which is characterized in that: rebound speed regulation subassembly (5) are including having the heart to lead magnetic ball (501), sectional type electromagnetism lantern ring (1) and flexible magnetic force speed governing cover (2) are close to the equal fixedly connected with of one end mutually and lead magnetic ball (501), corresponding two fixedly connected with piles up flexible pipe (502) between hollow magnetic ball (501) of leading, and piles up flexible pipe (502) intussuseption and be filled with magnetic powder.

8. The process for preparing multi-stage separation self-speed control heavy calcium carbonate according to claim 7, which is characterized in that: the stacked telescopic pipe (502) is connected with a plurality of magneto-variable auxiliary disks (503), the magneto-variable auxiliary disks (503) comprise electromagnetic auxiliary disks (5031) and magnetic discs (5032), the electromagnetic auxiliary disks (5031) and the magnetic discs (5032) are fixedly connected inside the stacked telescopic pipe (502), and the electromagnetic auxiliary disks (5031) and the magnetic discs (5032) are alternately arranged.

9. The process for preparing multi-stage separation self-speed control heavy calcium carbonate according to claim 2, which is characterized in that: pipeline (10) is controlled with higher speed all to rotate at both ends and be connected with pipeline adapter (11) with higher speed, and the internal diameter of pipeline adapter (11) with higher speed and the internal diameter of gliding wall tolerance guide pin bushing (4) equal, both ends are all rotated about speed reduction pipeline (20) and are connected with speed reduction pipeline adapter (21), are located the left side the internal diameter of speed reduction pipeline adapter (21) equals with the internal diameter of gliding wall tolerance guide pin bushing (4), are located the right side the internal diameter of speed reduction pipeline adapter (21) is 1.1-1.5 times of the internal diameter of gliding wall tolerance guide pin bushing (4).

10. The process for preparing multi-stage separation self-speed control heavy calcium carbonate according to claim 9, which is characterized in that: all install velocity of flow inductive probe in accelerating speed pipeline adapter (11) and speed reduction pipeline adapter (21).

Technical Field

The invention relates to the field of calcium carbonate preparation, in particular to a preparation process of multi-stage separation self-control speed type heavy calcium carbonate.

Background

Ground calcium carbonate, called triple superphosphate for short, is ground from natural carbonate minerals such as calcite, marble and limestone. The inorganic filler is a common powdery inorganic filler and has the advantages of high chemical purity, high inertia, difficult chemical reaction, good thermal stability, no decomposition at the temperature of below 400 ℃, high whiteness, low oil absorption rate, low refractive index, soft quality, dryness, no crystal water, low hardness, low abrasion value, no toxicity, no odor, good dispersibility and the like.

In the preparation process of the heavy calcium carbonate, a separator is needed to carry out classified filtration on ground milled powder, the milled powder which is not ground and is qualified is reprocessed, the milled powder which is ground and is qualified is subpackaged and warehoused, and the preparation of the heavy calcium carbonate is completed while the preparation quality is ensured.

However, when the gas classification equipment is used for classifying and screening the heavy calcium carbonate, the flow speed of the compressed gas is limited after the compressed gas enters the classification equipment, and the speed of the compressed gas cannot be effectively adjusted in the continuous flow separation process, so that the conditions of incomplete separation of the heavy calcium carbonate and damage of the separation equipment are easy to occur, and the normal operation and the preparation quality of the preparation work of the heavy calcium carbonate are influenced.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a preparation process of multi-stage separation self-control speed type heavy calcium carbonate, which can effectively ensure the separation effect of the heavy calcium carbonate and protect separation equipment by regulating the speed of air flow through an acceleration pipeline and a deceleration pipeline before corresponding stage separation is carried out, so that the heavy calcium carbonate can be normally prepared, the preparation quality is improved, the subsequent steps of increasing gas and increasing speed in the separation process can be effectively omitted, the impact and influence of external air flow on the air flow in the separation equipment are reduced, the input and energy loss of a compressor are effectively reduced, the preparation cost of the heavy calcium carbonate is reduced, and the economic benefit of the heavy calcium carbonate is improved.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A preparation process of multi-stage separation self-speed control heavy calcium carbonate comprises the following steps:

s1, pre-selecting: screening the stone material to screen gangue mixed in the stone material;

s2, coarse crushing: coarsely crushing the pre-selected stone materials into granules;

s3, grinding to prepare powder: grinding the granular stone to obtain fine powder;

s4, primary separation: introducing the fine grinding powder into a grading device, performing primary separation, and separating the fine grinding powder with a larger diameter;

s5, regrinding: conveying the fine grinding powder with larger diameter discharged in the primary separation to step S3 for re-grinding;

s6, secondary separation: passing the gas with dust discharged in the first-stage separation through an accelerating pipeline, increasing the flow speed of the gas, introducing the gas into a grading device, performing second-stage separation, and separating fine grinding powder with medium diameter;

s7, three-stage separation: gas with dust discharged in the second-stage separation passes through a speed reduction pipeline, the flowing speed of the gas is reduced, and then the gas is introduced into a grading device for third-stage separation, and the milled powder with smaller diameter is separated;

s8, grading and packaging: and (4) grading and packaging the medium-diameter fine ground powder separated in the step S6 and the small-diameter ground powder separated in the step S7, and storing the graded and packaged ground powders in a warehouse respectively. Through before carrying out corresponding rank separation, adjust the speed of air current through accelerating tube and speed reduction pipeline, effectively guarantee the effect of heavy calcium carbonate separation, protect splitter, and then make heavy calcium carbonate can normally prepare, improve the preparation quality, and can effectively save follow-up separation process step of increasing gas and speeding, when reducing outside air current and assault and influence the inside air current of splitter, effectively save the input and the energy loss of compressor, reduce the preparation cost of heavy calcium carbonate, improve its economic benefits.

Further, the equal fixedly connected with sectional type electromagnetism lantern ring of pipeline and the speed reduction pipeline inner wall accelerates, sectional type electromagnetism lantern ring inner wall is connected with flexible magnetic force speed governing cover, be connected with a plurality of resilience speed governing subassemblies that are the circumference and distribute between flexible magnetic force speed governing cover and the speed governing clearance arc piece, flexible magnetic force speed governing cover inner wall fixedly connected with slips the resistant guide pin bushing of wall. The sectional type electromagnetic sleeve ring and the flexible magnetic force speed regulating sleeve are used for regulating the shapes of the inner pipe diameters of the accelerating pipeline and the decelerating pipeline, so that the automatic regulation of the separation equipment on the inner gas flow is effectively realized, the functionality of the separation equipment is increased, the separation quality and the service life are improved, the automation degree of the heavy calcium carbonate preparation is effectively improved, and the preparation efficiency of the heavy calcium carbonate is improved.

Furthermore, the left end and the right end of the flexible magnetic speed regulating sleeve are fixedly connected with speed regulating gap arc blocks in the accelerating pipeline, and the speed regulating gap arc blocks are respectively and fixedly connected with the corresponding sectional type electromagnetic sleeve ring and the sliding wall tolerance guide sleeve. The sectional type electromagnetic sleeve ring, the flexible magnetic force speed regulation sleeve and the sliding wall tolerance guide sleeve are connected through the speed regulation gap arc block, so that an effective gap is reserved between the sectional type electromagnetic sleeve ring and the flexible magnetic force speed regulation sleeve, the sectional type electromagnetic sleeve ring and the flexible magnetic force speed regulation sleeve are convenient to generate physical deformation, and acceleration adjustment of an acceleration pipeline is effectively realized.

Furthermore, the number of turns of the coils in the segmented electromagnetic lantern ring in the accelerating pipeline is arranged in a normal distribution curve form from left to right, and the magnetic pole direction of the flexible magnetic speed regulating sleeve in the accelerating pipeline is the same as that of the segmented electromagnetic lantern ring after being electrified. The normally distributed coil turns effectively enable the sectional type electromagnetic sleeve ring to be larger than magnetic forces at two ends under the condition that the same current is introduced, and further effectively achieve that the flexible magnetic force speed regulation sleeve drives the sliding wall tolerance guide sleeve to deform, so that the inner diameter of the middle of the acceleration pipeline shrinks to form a waist drum-shaped section, and further effectively accelerate airflow, and the size of the magnetic force of the sectional type electromagnetic sleeve ring is changed by controlling the size of the current introduced into the sectional type electromagnetic sleeve ring, so that the deformation of the flexible magnetic force speed regulation sleeve and the sliding wall tolerance guide sleeve in the acceleration pipeline is effectively controlled, acceleration of different levels is effectively performed on the airflow, and the applicability of the acceleration pipeline is improved.

Furthermore, the left end of the flexible magnetic speed regulation sleeve is fixedly connected with a speed regulation gap arc block in the speed reduction pipeline, the right end of the flexible magnetic speed regulation sleeve is fixedly connected with a contraction type gap arc block in the speed reduction pipeline, and the speed regulation gap arc block and the contraction type gap arc block are respectively and fixedly connected with the corresponding sectional type electromagnetic lantern ring and the sliding wall tolerance guide sleeve. The segmented electromagnetic sleeve ring, the flexible magnetic speed regulating sleeve and the sliding wall tolerance guide sleeve are connected through the speed regulating gap arc block and the shrinkage type gap arc block, so that the flexible magnetic speed regulating sleeve can drive the sliding wall tolerance guide sleeve and the shrinkage type gap arc block to change phase jointly, the internal shape of the speed reducing pipeline is changed, and the speed reducing adjustment of the speed reducing pipeline is effectively realized.

Furthermore, the number of turns of the coils in the sectional type electromagnetic lantern ring in the speed reducing pipeline is sequentially and incrementally arranged from left to right, and the direction of the magnetic pole of the flexible magnetic speed regulating sleeve in the speed reducing pipeline is opposite to the direction of the magnetic pole of the sectional type electromagnetic lantern ring after the flexible magnetic speed regulating sleeve is electrified. The sectional type electromagnetic lantern ring that the number of turns of coil that increases up made under the circumstances of letting in equal electric current, its magnetic force size is from left to right progressively increasing up, and then make flexible magnetic force speed governing cover drive the slide wall tolerance uide bushing and produce deformation, make the pipeline that slows down right-hand member internal diameter constantly increase, form the horn-shaped tangent plane, and then effectively slow down the air current, reduce the harm that the air current caused to splitter, and change its magnetic force size through the size of the interior electric current that lets in of control sectional type electromagnetic lantern ring, effectively control the deformation volume of flexible magnetic force speed governing cover and slide wall tolerance uide bushing in the pipeline that slows down, be convenient for carry out hierarchical speed reduction to the air current, improve the suitability of speed reducing pipeline.

Further, the rebound speed regulation assembly comprises a hollow magnetic guide ball, the sectional type electromagnetic sleeve ring and the flexible magnetic force speed regulation sleeve are close to the hollow magnetic guide ball fixedly connected with one end, corresponding to the hollow magnetic guide ball, a telescopic pipe is stacked through the fixed connection between the hollow magnetic guide balls, and magnetic powder is filled in the telescopic pipe. When flexible magnetic force speed governing cover constantly produces deformation, stretch or compress the resilience speed governing subassembly, through the deformation volume of hollow magnetic ball, the maximum value of restriction flexible magnetic force speed governing cover phase transition, and then protect with flexible magnetic force speed governing cover and slide wall tolerance guide sleeve, effectively avoid because the magnetic force of sectional type electromagnetic sleeve ring out of control leads to the fact the damage to it, improve the life of flexible magnetic force speed governing cover and slide wall tolerance guide sleeve.

Further, it is connected with a plurality of magnetic change formula auxiliary disks to pile up flexible pipe, magnetic change formula auxiliary disk is including electromagnetism auxiliary disk and magnetism interveterbral dish, the equal fixed connection of electromagnetism auxiliary disk and magnetism interveterbral dish is inside piling up flexible pipe, and a plurality of electromagnetism auxiliary disks and magnetism interveterbral dish are alternative setting. Through the cooperation of the electromagnetic auxiliary disc and the magnetic disc, the rebounding speed regulation assembly can automatically reset, the flexible magnetic speed regulation sleeve is assisted to reset and deform, the adjustment efficiency of the acceleration pipeline and the deceleration pipeline is improved, and the strain capacity of the separation equipment is effectively improved.

Further, all rotate about the pipeline with higher speed both ends and be connected with pipeline adapter with higher speed, and the internal diameter of pipeline adapter with higher speed equals with the internal diameter of the resistant guide pin bushing of gliding wall, the both ends are all rotated about the speed reduction pipeline and are connected with speed reduction pipeline adapter, are located the left side the internal diameter of speed reduction pipeline adapter equals with the internal diameter of the resistant guide pin bushing of gliding wall, is located the right side the internal diameter of speed reduction pipeline adapter is 1.1-1.5 times of the internal diameter of the resistant guide pin bushing of gliding wall. Through effectively realizing the quick installation and the dismantlement of pipeline and speed reduction pipeline with higher speed pipeline adapter and speed reduction pipeline adapter, the portable degree that pipeline and speed reduction pipeline used improves with higher speed to adjust the air current through pipeline adapter and the effective assistance of speed reduction pipeline adapter with higher speed.

Further, all install velocity of flow inductive probe in accelerating speed pipeline adapter and the pipeline adapter that decelerates. The air current of velocity of flow inductive probe in to splitter carries out the velocity of flow monitoring, effectively realizes the intelligent degree of heavy calcium carbonate preparation, is convenient for accelerate pipeline and speed reduction pipeline and carry out the speed governing to its inside air current, effectively improves the accurate degree of speed governing, makes heavy calcium carbonate preparation effectively be applicable to automation line, reduces artifical the participation, reduces human error, and then improves the output of heavy calcium carbonate preparation.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme is through before carrying out corresponding rank separation, adjust the speed of air current through accelerating tube and speed reduction pipeline, effectively guarantee the effect of heavy calcium carbonate separation, protect splitter, and then make heavy calcium carbonate can normally prepare, improve the preparation quality, and can effectively save follow-up separation process step of increasing gas and speeding, when reducing outside air current and assault and influence the inside air current of splitter, effectively save the input and the energy loss of compressor, reduce the preparation cost of heavy calcium carbonate, improve its economic benefits.

(2) The sectional type electromagnetic sleeve ring and the flexible magnetic force speed regulating sleeve are used for regulating the shapes of the inner pipe diameters of the accelerating pipeline and the decelerating pipeline, so that the automatic regulation of the separation equipment on the inner gas flow is effectively realized, the functionality of the separation equipment is increased, the separation quality and the service life are improved, the automation degree of the heavy calcium carbonate preparation is effectively improved, and the preparation efficiency of the heavy calcium carbonate is improved.

(3) The sectional type electromagnetic sleeve ring, the flexible magnetic force speed regulation sleeve and the sliding wall tolerance guide sleeve are connected through the speed regulation gap arc block, so that an effective gap is reserved between the sectional type electromagnetic sleeve ring and the flexible magnetic force speed regulation sleeve, the sectional type electromagnetic sleeve ring and the flexible magnetic force speed regulation sleeve are convenient to generate physical deformation, and acceleration adjustment of an acceleration pipeline is effectively realized.

(4) The normally distributed coil turns effectively enable the sectional type electromagnetic sleeve ring to be larger than magnetic forces at two ends under the condition that the same current is introduced, and further effectively achieve that the flexible magnetic force speed regulation sleeve drives the sliding wall tolerance guide sleeve to deform, so that the inner diameter of the middle of the acceleration pipeline shrinks to form a waist drum-shaped section, and further effectively accelerate airflow, and the size of the magnetic force of the sectional type electromagnetic sleeve ring is changed by controlling the size of the current introduced into the sectional type electromagnetic sleeve ring, so that the deformation of the flexible magnetic force speed regulation sleeve and the sliding wall tolerance guide sleeve in the acceleration pipeline is effectively controlled, acceleration of different levels is effectively performed on the airflow, and the applicability of the acceleration pipeline is improved.

(5) The segmented electromagnetic sleeve ring, the flexible magnetic speed regulating sleeve and the sliding wall tolerance guide sleeve are connected through the speed regulating gap arc block and the shrinkage type gap arc block, so that the flexible magnetic speed regulating sleeve can drive the sliding wall tolerance guide sleeve and the shrinkage type gap arc block to change phase jointly, the internal shape of the speed reducing pipeline is changed, and the speed reducing adjustment of the speed reducing pipeline is effectively realized.

(6) The sectional type electromagnetic lantern ring that the number of turns of coil that increases up made under the circumstances of letting in equal electric current, its magnetic force size is from left to right progressively increasing up, and then make flexible magnetic force speed governing cover drive the slide wall tolerance uide bushing and produce deformation, make the pipeline that slows down right-hand member internal diameter constantly increase, form the horn-shaped tangent plane, and then effectively slow down the air current, reduce the harm that the air current caused to splitter, and change its magnetic force size through the size of the interior electric current that lets in of control sectional type electromagnetic lantern ring, effectively control the deformation volume of flexible magnetic force speed governing cover and slide wall tolerance uide bushing in the pipeline that slows down, be convenient for carry out hierarchical speed reduction to the air current, improve the suitability of speed reducing pipeline.

(7) When flexible magnetic force speed governing cover constantly produces deformation, stretch or compress the resilience speed governing subassembly, through the deformation volume of hollow magnetic ball, the maximum value of restriction flexible magnetic force speed governing cover phase transition, and then protect with flexible magnetic force speed governing cover and slide wall tolerance guide sleeve, effectively avoid because the magnetic force of sectional type electromagnetic sleeve ring out of control leads to the fact the damage to it, improve the life of flexible magnetic force speed governing cover and slide wall tolerance guide sleeve.

(8) Through the cooperation of the electromagnetic auxiliary disc and the magnetic disc, the rebounding speed regulation assembly can automatically reset, the flexible magnetic speed regulation sleeve is assisted to reset and deform, the adjustment efficiency of the acceleration pipeline and the deceleration pipeline is improved, and the strain capacity of the separation equipment is effectively improved.

(9) Through effectively realizing the quick installation and the dismantlement of pipeline and speed reduction pipeline with higher speed pipeline adapter and speed reduction pipeline adapter, the portable degree that pipeline and speed reduction pipeline used improves with higher speed to adjust the air current through pipeline adapter and the effective assistance of speed reduction pipeline adapter with higher speed.

(10) The air current of velocity of flow inductive probe in to splitter carries out the velocity of flow monitoring, effectively realizes the intelligent degree of heavy calcium carbonate preparation, is convenient for accelerate pipeline and speed reduction pipeline and carry out the speed governing to its inside air current, effectively improves the accurate degree of speed governing, makes heavy calcium carbonate preparation effectively be applicable to automation line, reduces artifical the participation, reduces human error, and then improves the output of heavy calcium carbonate preparation.

Drawings

FIG. 1 is a schematic diagram of the process flow structure of the present invention;

FIG. 2 is a schematic view of an acceleration tube axis measurement structure according to the present invention;

FIG. 3 is a schematic diagram of an accelerating pipeline semi-section explosion structure of the present invention;

FIG. 4 is a schematic sectional view of the accelerating tube of the present invention;

FIG. 5 is a schematic cross-sectional view of the accelerating tube of the present invention;

FIG. 6 is a schematic view of the axial structure of the deceleration pipe of the present invention;

FIG. 7 is a schematic diagram of a deceleration pipe half-section explosion structure of the present invention;

FIG. 8 is a schematic sectional view of the deceleration pipe of the present invention;

FIG. 9 is a schematic cross-sectional view of the deceleration pipeline of the present invention;

FIG. 10 is a schematic axial view of the rebound speed control assembly of the present invention;

FIG. 11 is a schematic view of the configuration of the rebound governor assembly of the present invention in partial cross section.

The reference numbers in the figures illustrate:

1 sectional type electromagnetic lantern ring, 2 flexible magnetic force speed adjusting sleeve, 3 speed adjusting clearance arc blocks, 4 slide wall tolerance guide sleeve, 5 resilience speed adjusting component, 501 hollow magnetic ball, 502 stacking telescopic tube, 503 magnetic change type auxiliary disc, 5031 electromagnetic auxiliary disc, 5032 magnetic disc, 6 shrinkage clearance arc blocks, 10 accelerating pipeline, 11 accelerating pipeline adapter, 20 decelerating pipeline and 21 decelerating pipeline adapter.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-11, a process for preparing multi-stage separation self-controlled speed heavy calcium carbonate includes the following steps:

s1, pre-selecting: screening the stone material to screen gangue mixed in the stone material;

s2, coarse crushing: coarsely crushing the pre-selected stone materials into granules;

s3, grinding to prepare powder: grinding the granular stone to obtain fine powder;

s4, primary separation: introducing the fine grinding powder into a grading device, performing primary separation, and separating the fine grinding powder with a larger diameter;

s5, regrinding: conveying the fine grinding powder with larger diameter discharged in the primary separation to step S3 for re-grinding;

s6, secondary separation: the gas with dust discharged in the first-stage separation passes through an accelerating pipeline 10, the flowing speed of the gas is increased, and then the gas is introduced into a grading device for second-stage separation, and fine grinding powder with medium diameter is separated;

s7, three-stage separation: the gas with dust discharged in the second-stage separation passes through a speed reduction pipeline 20, the flowing speed of the gas is reduced, and then the gas is introduced into a grading device for third-stage separation, and the ground powder with smaller diameter is separated;

s8, grading and packaging: and (4) grading and packaging the medium-diameter fine ground powder separated in the step S6 and the small-diameter ground powder separated in the step S7, and storing the graded and packaged ground powders in a warehouse respectively. Through before carrying out corresponding rank separation, adjust the speed of air current through accelerating tube 10 and speed reduction pipeline 20, effectively guarantee the effect of heavy calcium carbonate separation, protect splitter, and then make heavy calcium carbonate can normally prepare, improve the preparation quality, and can effectively save follow-up separation process step of increasing gas and speeding, when reducing outside air current and assault and influence the inside air current of splitter, effectively save the input and the energy loss of compressor, reduce the preparation cost of heavy calcium carbonate, improve its economic benefits.

Example 2:

referring to fig. 1 to 11, wherein the same or corresponding components as those in embodiment 1 are designated by the same reference numerals as those in embodiment 1, only the points different from embodiment 1 will be described below for the sake of convenience. This example 2 differs from example 1 in that: referring to fig. 2 and 3, a segmented electromagnetic sleeve ring 1 is fixedly connected to an inner wall of the accelerating pipeline 10, a flexible magnetic speed adjusting sleeve 2 is connected to an inner wall of the segmented electromagnetic sleeve ring 1, a plurality of circumferentially distributed rebounding speed adjusting assemblies 5 are connected between the flexible magnetic speed adjusting sleeve 2 and the speed adjusting gap arc block 3, and a slide wall resistance guide sleeve 4 is fixedly connected to an inner wall of the flexible magnetic speed adjusting sleeve 2. The shapes of the inner pipe diameters of the accelerating pipeline 10 and the decelerating pipeline 20 are adjusted through the sectional type electromagnetic lantern ring 1 and the flexible magnetic speed regulating sleeve 2, the automatic adjustment of the separation equipment to the inner air flow is effectively realized, the functionality of the separation equipment is increased, the separation quality and the service life are improved, the automation degree of the heavy calcium carbonate preparation is effectively improved, and the preparation efficiency of the heavy calcium carbonate is improved.

Referring to fig. 3 and 4, the speed regulation gap arc blocks 3 are fixedly connected to the left and right ends of the flexible magnetic speed regulation sleeve 2 in the acceleration pipeline 10, and the speed regulation gap arc blocks 3 are respectively and fixedly connected to the corresponding segmented electromagnetic lantern ring 1 and the sliding wall resistance guide sleeve 4. Connect sectional type electromagnetism lantern ring 1, flexible magnetic force speed governing cover 2 and slide wall tolerance guide pin bushing 4 through speed governing clearance arc piece 3 for leave effective clearance between sectional type electromagnetism lantern ring 1 and the flexible magnetic force speed governing cover 2, it produces physical deformation to be convenient for, and then effectively realize the adjustment with higher speed of pipeline 10.

Referring to fig. 5, the number of turns of the coil in the segmented electromagnetic sleeve 1 in the accelerating pipe 10 is normally distributed from left to right, and the magnetic pole direction of the flexible magnetic speed adjusting sleeve 2 in the accelerating pipe 10 is the same as the magnetic pole direction of the segmented electromagnetic sleeve 1 after being electrified. The normally distributed coil turns effectively enable the sectional type electromagnetic sleeve ring 1 to be larger than magnetic forces at two ends under the condition that the same current is introduced, further effectively achieve that the flexible magnetic force speed adjusting sleeve 2 drives the slide wall resistance guide sleeve 4 to deform, the inner diameter of the middle of the acceleration pipeline 10 shrinks, a waist drum-shaped section is formed, further effectively accelerate airflow, the size of the magnetic force of the sectional type electromagnetic sleeve ring 1 is changed by controlling the size of the current introduced into the sectional type electromagnetic sleeve ring, deformation quantities of the flexible magnetic force speed adjusting sleeve 2 and the slide wall resistance guide sleeve 4 in the acceleration pipeline 10 are effectively controlled, acceleration of the airflow at different levels is effectively performed, and the applicability of the acceleration pipeline 10 is improved.

Referring to fig. 4, the left and right ends of the accelerating pipeline 10 are rotatably connected to accelerating pipeline adapters 11, and the inner diameter of the accelerating pipeline adapters 11 is equal to the inner diameter of the slide-wall resistant guide sleeve 4. Effectively realize the quick installation and the dismantlement of pipeline 10 and speed reduction pipeline 20 with higher speed through accelerating pipeline adapter 11 and speed reduction pipeline adapter 21, improve the portable degree that pipeline 10 and speed reduction pipeline 20 used with higher speed to adjust the air current through accelerating pipeline adapter 11 and the effective assistance of speed reduction pipeline adapter 21.

Referring to fig. 2-5, a flow rate sensing probe is installed in the accelerating pipe adapter 11. The velocity of flow inductive probe carries out the velocity of flow monitoring to the air current in the splitter, effectively realizes the intelligent degree of heavy calcium carbonate preparation, is convenient for accelerate pipeline 10 and speed reduction pipeline 20 and carry out the speed governing to its inside air current, effectively improves the accurate degree of speed governing, makes heavy calcium carbonate preparation effectively be applicable to automation line, reduces artifical the participation, reduces human error, and then improves the output of heavy calcium carbonate preparation.

Referring to fig. 1-11, the acceleration method for accelerating the pipeline 10: before the second-stage separation, the air flow speed is easily changed after the first-stage separation due to the difference of heavy calcium carbonate particles carried in the air flow, the air flow in the separation equipment passes through the accelerating pipeline adapter 11, the air flow speed is induced by the flow speed induction probe, when the speed is lower than the set speed, the sectional type electromagnetic sleeve ring 1 in the accelerating pipeline 10 is electrified to generate magnetic force with a certain size and generate repulsive magnetic force with the flexible magnetic speed regulating sleeve 2, so that the flexible magnetic speed regulating sleeve 2 drives the slide wall resistance guide sleeve 4 to deform, the rebound speed regulating assembly 5 is stretched and moves towards the direction far away from the sectional type electromagnetic sleeve ring 1, and the magnetic force is distributed in a decreasing manner from the middle to two ends due to the fact that the number of turns in the sectional type electromagnetic sleeve ring 1 is set in a normal distribution curve, and the inner diameter of the accelerating pipeline 10 forms a waist drum-shaped section, due to the shrinkage of the inner diameter of the acceleration pipeline 10, after the airflow passes through the acceleration pipeline 10, the dynamic potential energy of the airflow is superposed due to the compression of the flowing space, so that the airflow is accelerated to form an acceleration route, and the airflow can have enough power when entering the secondary separation; after the flow velocity sensing probe senses that the subsequent air flow velocity meets the set requirement, the segmented electromagnetic sleeve ring 1 is powered off, so that the flexible magnetic speed regulating sleeve 2 and the slide wall tolerance guide sleeve 4 are deformed to recover, the inner diameter shape of the accelerating pipeline 10 is recovered, and the air flow velocity is not adjusted.

Example 3:

referring to fig. 1 to 11, wherein the same or corresponding components as those in embodiment 1 are designated by the same reference numerals as those in embodiment 1, only the points different from embodiment 1 will be described below for the sake of convenience. This example 3 differs from example 1 in that: referring to fig. 6 and 7, a sectional electromagnetic sleeve ring 1 is fixedly connected to the inner wall of the speed reducing pipeline 20, a flexible magnetic speed adjusting sleeve 2 is connected to the inner wall of the sectional electromagnetic sleeve ring 1, a plurality of circumferentially distributed rebounding speed adjusting assemblies 5 are connected between the flexible magnetic speed adjusting sleeve 2 and the speed adjusting gap arc block 3, and a slide wall resistance guide sleeve 4 is fixedly connected to the inner wall of the flexible magnetic speed adjusting sleeve 2. The shapes of the inner pipe diameters of the accelerating pipeline 10 and the decelerating pipeline 20 are adjusted through the sectional type electromagnetic lantern ring 1 and the flexible magnetic speed regulating sleeve 2, the automatic adjustment of the separation equipment to the inner air flow is effectively realized, the functionality of the separation equipment is increased, the separation quality and the service life are improved, the automation degree of the heavy calcium carbonate preparation is effectively improved, and the preparation efficiency of the heavy calcium carbonate is improved.

Referring to fig. 7 and 8, the speed regulation gap arc block 3 is fixedly connected to the left end of the flexible magnetic speed regulation sleeve 2 in the speed reduction pipeline 20, the contraction type gap arc block 6 is fixedly connected to the right end of the flexible magnetic speed regulation sleeve 2 in the speed reduction pipeline 20, and the speed regulation gap arc block 3 and the contraction type gap arc block 6 are respectively and fixedly connected to the corresponding segmented electromagnetic lantern ring 1 and the sliding wall tolerance guide sleeve 4. Connect segmentation electromagnetic sleeve ring 1, flexible magnetic force speed governing cover 2 and slide wall tolerance guide pin bushing 4 through speed governing clearance arc piece 3 and shrink type clearance arc piece 6, make flexible magnetic force speed governing cover 2 can drive slide wall tolerance guide pin bushing 4 and the common phase transition of shrink type clearance arc piece 6, change the inside shape of speed reduction pipeline 20, effectively realize speed reduction pipeline 20's speed reduction adjustment.

Referring to fig. 9, the number of turns of the coil in the segmented electromagnetic thimble 1 in the deceleration pipe 20 is sequentially arranged from left to right in an increasing manner, and the magnetic pole direction of the flexible magnetic speed-regulating sleeve 2 in the deceleration pipe 20 is opposite to the magnetic pole direction of the segmented electromagnetic thimble 1 after being electrified. The sectional type electromagnetic lantern ring 1 that the number of turns that increases up makes under the circumstances of letting in equal electric current, its magnetic force size is from left to right progressively increased gradually, and then make flexible magnetic force speed adjusting sleeve 2 drive slide wall tolerance guide pin bushing 4 and produce deformation, make the continuous increase of speed reduction pipeline 20 right-hand member internal diameter, form the horn-shaped tangent plane, and then effectively slow down the air current, reduce the harm that the air current caused to splitter, and change its magnetic force size through the size of controlling the electric current that lets in sectional type electromagnetic lantern ring 1, effectively control the deformation volume of flexible magnetic force speed adjusting sleeve 2 and slide wall tolerance guide pin bushing 4 in the speed reduction pipeline 20, be convenient for carry out hierarchical speed reduction to the air current, improve speed reduction pipeline 20's suitability.

Referring to fig. 8, the left and right ends of the deceleration duct 20 are rotatably connected to deceleration duct adapters 21, the inside diameter of the deceleration duct adapter 21 on the left side is equal to the inside diameter of the slide-wall resistant guide sleeve 4, and the inside diameter of the deceleration duct adapter 21 on the right side is 1.1 to 1.5 times the inside diameter of the slide-wall resistant guide sleeve 4. Effectively realize the quick installation and the dismantlement of pipeline 10 and speed reduction pipeline 20 with higher speed through accelerating pipeline adapter 11 and speed reduction pipeline adapter 21, improve the portable degree that pipeline 10 and speed reduction pipeline 20 used with higher speed to adjust the air current through accelerating pipeline adapter 11 and the effective assistance of speed reduction pipeline adapter 21.

Referring to fig. 6-9, a flow rate sensing probe is mounted in the deceleration pipe adapter 21. The velocity of flow inductive probe carries out the velocity of flow monitoring to the air current in the splitter, effectively realizes the intelligent degree of heavy calcium carbonate preparation, is convenient for accelerate pipeline 10 and speed reduction pipeline 20 and carry out the speed governing to its inside air current, effectively improves the accurate degree of speed governing, makes heavy calcium carbonate preparation effectively be applicable to automation line, reduces artifical the participation, reduces human error, and then improves the output of heavy calcium carbonate preparation.

Referring to fig. 1-11, the deceleration method of the deceleration duct 20: before the third-stage separation, the air flow speed is easy to change greatly after the second-stage separation due to the difference of heavy calcium carbonate particles carried in the air flow, the air flow in the separation equipment passes through the speed reduction pipeline adapter 21, the air flow speed is induced by the flow speed induction probe, when the speed is higher than the set speed, the sectional type electromagnetic lantern ring 1 in the speed reduction pipeline 20 is electrified to generate magnetic force with a certain size and generate attractive magnetic force with the flexible magnetic speed regulation sleeve 2, so that the flexible magnetic speed regulation sleeve 2 drives the sliding wall resistance guide sleeve 4 to deform, the rebound speed regulation component 5 is compressed and moves towards the direction close to the sectional type electromagnetic lantern ring 1, and due to the fact that the number of the coils in the sectional type electromagnetic lantern ring 1 is gradually increased, the magnetic force is distributed in a mode of increasing from left to right, a horn-shaped section is formed in the speed reduction pipeline 20, and due to the increase of the inner diameter of the speed reduction pipeline 20, after the airflow passes through the speed reduction pipeline 20, the flowing space is continuously enlarged to reduce the kinetic potential energy of the airflow, so that the airflow is reduced to form a speed reduction route, the airflow can be fully reduced when entering the three-stage separation, and the damage of the airflow to the separation equipment is reduced; after the flow velocity induction probe induces that the flow velocity of subsequent air flow meets the set requirement, the segmented electromagnetic sleeve ring 1 is powered off, so that the flexible magnetic speed regulation sleeve 2 and the slide wall tolerance guide sleeve 4 are deformed to recover, the inner diameter shape of the speed reduction pipeline 20 is recovered, and the air flow velocity is not adjusted.

Example 4:

referring to fig. 1 to 11 in which the same or corresponding components as those in embodiment 1 or 2 are denoted by the same reference numerals as those in embodiment 1 or 2, only the points different from embodiment 1 or 2 will be described below for the sake of convenience. This example 4 differs from example 1 or 2 in that:

referring to fig. 10, the rebound speed regulation assembly 5 includes a hollow magnetic ball 501, the hollow magnetic ball 501 is fixedly connected to the adjacent ends of the sectional electromagnetic sleeve 1 and the flexible magnetic speed regulation sleeve 2, a stacking extension tube 502 is fixedly connected between the two corresponding hollow magnetic balls 501, and the stacking extension tube 502 is filled with magnetic powder. When flexible magnetic force speed governing cover 2 constantly produces deformation, stretch or compress resilience speed governing subassembly 5, through the deformation volume of hollow magnetic ball 501, the maximum value of restriction flexible magnetic force speed governing cover 2 phase transition, and then protect with flexible magnetic force speed governing cover 2 and slide wall tolerance guide pin bushing 4, effectively avoid because the magnetic force of sectional type electromagnetic sleeve ring 1 out of control causes the damage to it, improve the life of flexible magnetic force speed governing cover 2 and slide wall tolerance guide pin bushing 4.

Referring to fig. 11, a plurality of magnetic auxiliary discs 503 are connected to the stacked bellows 502, the magnetic auxiliary discs 503 include an electromagnetic auxiliary disc 5031 and a magnetic disc 5032, the electromagnetic auxiliary disc 5031 and the magnetic disc 5032 are both fixedly connected to the inside of the stacked bellows 502, and the plurality of electromagnetic auxiliary discs 5031 and the magnetic discs 5032 are alternately arranged. Through the matching of the electromagnetic auxiliary disc 5031 and the magnetic disc 5032, the rebound speed regulation assembly 5 can generate self-reset and assist the flexible magnetic speed regulation sleeve 2 to generate reset deformation, so that the regulation efficiency of the acceleration pipeline 10 and the deceleration pipeline 20 is improved, and the strain capacity of the separation equipment is effectively improved.

Referring to fig. 1-11, a method of using the rebound governor assembly 5: based on the method of use of example 2 or example 3, when the rebound governor assembly 5 is stretched: the stacked extension tube 502 is continuously driven to extend by the flexible magnetic speed regulation sleeve 2, magnetic powder in the stacked extension tube 502 is influenced by the magnetic force of the electrified sectional type electromagnetic sleeve ring 1 to generate repellent displacement, so that the extension of the stacked extension tube 502 is promoted, the deformation speed of the flexible magnetic speed regulation sleeve 2 is increased, the deformation position of the flexible magnetic speed regulation sleeve 2 is limited, when the stacked extension tube 502 is recovered after extension, an electromagnetic auxiliary disc 5031 in the stacked extension tube is electrified to generate suction to a magnetic disc 5032, the magnetic powder and the flexible magnetic speed regulation sleeve 2, and the rapid recovery of the stacked extension tube and the flexible magnetic speed regulation sleeve 2 is effectively assisted;

when the rebound speed regulation assembly 5 is compressed: the stacked telescopic tube 502 is continuously driven and compressed by the flexible magnetic speed regulation sleeve 2, magnetic powder inside the stacked telescopic tube 502 is influenced by the magnetic force of the segmented electromagnetic sleeve ring 1 after being electrified to generate attraction displacement, the shrinkage of the stacked telescopic tube 502 is promoted, the deformation speed of the flexible magnetic speed regulation sleeve 2 is increased, the deformation position of the flexible magnetic speed regulation sleeve 2 is limited, when the stacked telescopic tube 502 is recovered after being shrunk, an electromagnetic auxiliary disc 5031 inside the stacked telescopic tube is electrified to generate repulsive force for the magnetic disc 5032, the magnetic powder and the flexible magnetic speed regulation sleeve 2, and the rapid recovery of the stacked telescopic tube and the flexible magnetic speed regulation sleeve 2 is effectively assisted.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.