阅读说明：本技术 一种基于物料平衡的氨碱法纯碱生产工艺优化系统 (Ammonia-soda process soda production process optimization system based on material balance ) 是由 张井柱 裔传国 霍介方 李磊 方细康 王善聪 文以任 宋志兰 王长军 李峰 于 2020-11-18 设计创作，主要内容包括：本发明公开了一种基于物料平衡的氨碱法纯碱生产工艺优化系统,属于氨碱法纯碱生产技术领域。一种基于物料平衡的氨碱法纯碱生产工艺优化系统,包括预灰桶和蒸氨塔,预灰桶与蒸氨塔通过连接管相互连接,预灰桶的底部连接有支撑座,支撑座外壁连接有电机,电机的输出端连接有转动轴,转动轴远离电机的一端连接有第一锥齿轮；本发明通过第二螺旋输送叶片将预灰桶内的颗粒物输送至预灰桶的顶部,再通过第一螺旋输送叶片将移动至顶部的颗粒物输送至滤网筒中,通过滤网筒对溶液中的颗粒进行收集,避免导致设备堵塞、磨损,且对预灰桶进行清理时,只需清理滤网筒即可,缩短检修时间,进而保证设备的纯碱生产能力,降低生产成本。(The invention discloses an ammonia-soda process soda ash production process optimization system based on material balance, and belongs to the technical field of ammonia-soda process soda ash production. A system for optimizing an ammonia-soda process soda production process based on material balance comprises a pre-ash barrel and an ammonia still, wherein the pre-ash barrel and the ammonia still are connected with each other through a connecting pipe; according to the invention, the particles in the pre-ash barrel are conveyed to the top of the pre-ash barrel through the second spiral conveying blade, the particles moving to the top are conveyed into the filter screen cylinder through the first spiral conveying blade, the particles in the solution are collected through the filter screen cylinder, so that the equipment is prevented from being blocked and abraded, and when the pre-ash barrel is cleaned, only the filter screen cylinder needs to be cleaned, so that the maintenance time is shortened, the soda production capacity of the equipment is ensured, and the production cost is reduced.)

1. The ammonia-soda process soda production process optimization system based on material balance comprises a pre-ash barrel (1) and an ammonia still (10), wherein the pre-ash barrel (1) and the ammonia still (10) are connected with each other through a connecting pipe, and the system is characterized in that the bottom of the pre-ash barrel (1) is connected with a supporting seat (2), the outer wall of the supporting seat (2) is connected with a motor (3), the output end of the motor (3) is connected with a rotating shaft (301), one end, away from the motor (3), of the rotating shaft (301) is connected with a first bevel gear (302), the inner wall of the top and the inner wall of the bottom of the pre-ash barrel (1) are respectively connected with a rotating rod (4) and a rotating pipe (5) through a first bearing and a second bearing in a rotating pipe (5), the rotating rod (4) is arranged in the rotating pipe (5), and the outer walls of the rotating rod (4) and the rotating pipe (5) are respectively connected with a second bevel gear (401, dwang (4) outer wall connection has first spiral delivery vane (402), rotating tube (5) outer wall connection has second spiral delivery vane (502), rotating tube (5) inner wall still is connected with filter screen cylinder (6), the below of first spiral delivery vane (402) is arranged in filter screen cylinder (6).

2. The system for optimizing the ammonia-soda process soda ash production process based on material balance as claimed in claim 1, wherein the outer wall of the bottom of the rotating pipe (5) is chiseled with evenly distributed water outlet holes (503).

3. The system for optimizing the ammonia-soda process soda production process based on material balance as claimed in claim 2, wherein the screen cylinder (6) comprises a screen cylinder inlet (601), a folding pipe (602) and a screen cylinder main body (603), the screen cylinder inlet (601) is fixedly connected to the inner wall of the rotating pipe (5), the folding pipe (602) is connected to the bottom end of the screen cylinder inlet (601), and the end of the folding pipe (602) far away from the screen cylinder inlet (601) is connected to the top of the screen cylinder main body (603).

4. The system for optimizing the ammonia-soda process soda production process based on material balance as claimed in claim 3, wherein the mesh cylinder main body (603) is slidably connected to the outer wall of the rotating rod (4).

5. The system for optimizing the ammonia-soda process soda ash production process based on material balance as claimed in claim 4, wherein the outer wall of the rotating shaft (301) is connected with a first cam (3011), the outer wall of the rotating shaft (4) is slidably connected with a sleeve (7), the bottom of the sleeve (7) is movably abutted to the first cam (3011), the top of the sleeve (7) is connected with an extrusion plate (701), the outer wall of the sleeve (7) is sleeved with a first elastic element (702), and two ends of the first elastic element (702) are respectively connected to the inner wall of the bottom of the pre-ash bucket (1) and the outer wall of the bottom of the extrusion plate (701).

6. The system for optimizing the ammonia-soda process soda ash production process based on material balance as claimed in claim 1 or 3, wherein the outer wall of the rotating pipe (5) is connected with a connecting rod (504), one end of the connecting rod (504) far away from the rotating pipe (5) is connected with a scraper (8), and the scraper (8) is abutted against the inner wall of the pre-ash barrel (1).

7. The system for optimizing the ammonia-soda process soda production process based on material balance as claimed in claim 6, wherein the outer walls of the upper side and the lower side of the scraper (8) are rotatably connected with swing plates (801) through pin shafts, a knocking plate (802) is connected between the two swing plates (801), a second elastic element (805) is connected between the knocking plate (802) and the scraper (8), the knocking plate (802) is movably abutted against the inner wall of the pre-ash barrel (1), a movable rod (803) is rotatably connected in the scraper (8), a second cam (804) is connected to the outer wall of the movable rod (803), and the second cam (804) is movably abutted against the swing plates (801).

8. The system for optimizing the ammonia-soda process soda ash production process based on material balance as claimed in claim 7, wherein the outer walls of the movable rod (803) and the rotating rod (4) are connected with a synchronous wheel (9) which is matched with each other, and a synchronous belt (901) is connected between the two synchronous wheels (9).

9. The system for optimizing the ammonia-soda process soda production process based on material balance as claimed in claim 1, wherein the ammonia still (10) comprises an ammonia distillation preheating section (1011) and an ammonia distillation section (1012), the ammonia distillation preheating section (1011) is arranged above the ammonia distillation section (1012), and the pre-ash barrel (1) and the ammonia distillation section (1012) are communicated with each other.

10. The system for optimizing the ammonia-soda process soda production process based on material balance as claimed in claim 9, wherein the top of the ammonia still (10) is provided with an exhaust cavity (11), the inner wall of the exhaust cavity (11) is connected with a cylinder (111), the output end of the cylinder (111) is connected with a power rod (1111), one end of the power rod (1111), which is far away from the cylinder (111), is connected with a piston (1112), the piston (1112) is slidably connected in the exhaust cavity (11), a first check valve (1113) is arranged in the piston (1112), and the inner wall of the bottom of the exhaust cavity (11) is connected with a second check valve (112).

Technical Field

The invention relates to the technical field of ammonia-soda process soda ash production, in particular to an ammonia-soda process soda ash production process optimization system based on material balance.

Background

The soda ash industry is one of basic departments of chemical industry, is called as the mother of the industry and has a very important position in national economy, the soda ash production process mainly comprises an ammonia-soda process, a combined soda process and a soda ash production process, the chemical synthesis soda production process which is applied more and has large production scale is an ammonia-soda process in the world, the process is mature and reliable, the product quality is excellent, the process does not need to be matched with an ammonia synthesis device, and the process has the advantages of short process route, normal temperature and pressure production, convenient process control, safe, stable and reliable operation and the like, and the yield of soda ash prepared by the ammonia-soda process in China accounts for 70 percent of the total yield of soda ash in the country.

In order to fully recover ammonia in a preheated mother liquor in the existing ammonia-soda process soda production process, lime milk and the preheated mother liquor (the preheated mother liquor refers to a component obtained by subjecting carbonized mother liquor to twice heating and distillation in a calcination process mother liquor combined tower and a distillation process distillation tower) are fed into a pre-ash barrel in the distillation process and stirred by a stirrer to promote reaction, SO that combined ammonia in the preheated mother liquor and calcium hydroxide in the lime milk fully react to form a mixed liquor, the mixed liquor after reaction enters a distillation tower to be subjected to steam distillation, SO that evaporated NH3 and carbon dioxide are recycled, and as the lime milk and the preheated mother liquor contain a large amount of Ca2+, Mg2+, SO42-, CO32-, Cl-and other ions, the inner wall of the pre-ash barrel can generate double salt scabs which take calcium sulfate as a main component, SO that equipment is blocked, abraded, and the pre-ash barrel is forced to be shut down and overhauled for a long time, the production capacity of the soda ash is influenced, the production fluctuation is caused, and the overhaul and maintenance cost is increased.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides an ammonia-soda process soda ash production process optimization system based on material balance.

In order to achieve the purpose, the invention adopts the following technical scheme:

an ammonia-soda process soda production process optimizing system based on material balance comprises a pre-ash barrel and an ammonia still, wherein the pre-ash barrel and the ammonia still are connected with each other through a connecting pipe, the bottom of the pre-ash barrel is connected with a supporting seat, the outer wall of the supporting seat is connected with a motor, the output end of the motor is connected with a rotating shaft, one end of the rotating shaft, which is far away from the motor, is connected with a first bevel gear, the inner wall of the top and the inner wall of the bottom of the pre-ash barrel are respectively connected with a rotating rod and a rotating pipe through a first bearing and a second bearing in a rotating mode, the rotating rod is arranged in the rotating pipe, the outer wall of the rotating rod and the outer wall of the rotating pipe are respectively connected with a second bevel gear and a third bevel gear which are mutually meshed with the first bevel gear, the outer wall of the rotating rod, the filter screen cylinder is arranged below the first spiral conveying blade.

Preferably, the outer wall of the bottom of the rotating pipe is provided with water outlet holes which are uniformly distributed.

Preferably, a filter screen section of thick bamboo includes a net section of thick bamboo import, folding pipe and a net section of thick bamboo main part, a net section of thick bamboo import fixed connection is at the inner wall of rotating tube, folding union coupling is in the bottom of a net section of thick bamboo import, the top at a net section of thick bamboo main part is connected to the one end that a net section of thick bamboo import was kept away from to folding pipe.

Preferably, the net cylinder main body is slidably connected to the outer wall of the rotating rod.

Preferably, the axis of rotation outer wall is connected with first cam, dwang outer wall sliding connection has the sleeve pipe, sheathed tube bottom offsets with first cam activity, sheathed tube top is connected with the stripper plate, the sleeve pipe outer wall has cup jointed first elastic element, the bottom inner wall at ash bucket in advance and the bottom outer wall of stripper plate are connected respectively at first elastic element's both ends.

Preferably, the outer wall of the rotating pipe is connected with a connecting rod, one end, far away from the rotating pipe, of the connecting rod is connected with a scraper, and the scraper abuts against the inner wall of the pre-ash barrel.

Preferably, the outer walls of the upper side and the lower side of the scraper are rotatably connected with swing plates through pin shafts, a knocking plate is connected between the swing plates, a second elastic element is connected between the knocking plate and the scraper, the knocking plate is movably abutted to the inner wall of the pre-ash barrel, a movable rod is rotatably connected in the scraper, a second cam is connected to the outer wall of the movable rod, and the second cam is movably abutted to the swing plates.

Preferably, the outer wall of the movable rod and the outer wall of the rotating rod are connected with matched synchronizing wheels, and a synchronous belt is connected between the synchronizing wheels.

Preferably, the ammonia still comprises an ammonia distillation preheating section and an ammonia distillation section, the ammonia distillation preheating section is arranged above the ammonia distillation section, and the pre-ash barrel is communicated with the ammonia distillation section.

Preferably, the top of ammonia still is provided with the exhaust chamber, the intracavity wall of exhausting is connected with the cylinder, the output of cylinder is connected with the power pole, the one end that the cylinder was kept away from to the power pole is connected with the piston, piston sliding connection is in the exhaust chamber, be provided with first check valve in the piston, the bottom inner wall in exhaust chamber is connected with the second check valve.

Compared with the prior art, the invention provides an ammonia-soda process soda production process optimization system based on material balance, which has the following beneficial effects:

1. this ammonia-soda process soda production process optimization system based on material balance, carry the top to the ash bucket in advance through the particulate matter of second auger delivery blade in with the ash bucket in advance, the particulate matter of rethread first auger delivery blade will remove to the top is carried to the filter screen section of thick bamboo in, collect the granule in the solution through the filter screen section of thick bamboo, avoid leading to equipment blocking, wearing and tearing, and when clearing up the ash bucket in advance, only need clear up the filter screen section of thick bamboo can, shorten the repair time, and then guarantee the soda production capacity of equipment, and the reduction in production cost.

2. This ammonia-soda process soda production process optimization system based on material balance rotates through motor drive axis of rotation, makes the axis of rotation drive the first cam in the outside and rotates, makes first cam intermittent type nature offset with the sleeve pipe, makes the sleeve pipe drive the bottom effort of stripper plate to net section of thick bamboo main part, makes its atress vibration and reciprocate, avoids the mesh of particulate matter jam filter screen section of thick bamboo, influences the drainage effect of filter screen section of thick bamboo, guarantees the normal circulation of liquid between filter screen section of thick bamboo and the rotating tube.

3. This ammonia-soda process soda production process optimization system based on material balance connects the scraper blade in the rotating tube outside through the connecting rod, makes the scraper blade strike off the double salt scab of ash bucket inner wall in advance, and the solid particle thing after scraping rises to the top under the effect of second screw conveyor blade to get into in the filter screen section of thick bamboo under first screw conveyor blade's transport.

4. This ammonia-soda process soda production process optimization system based on material balance drives the second cam through the movable rod at the pivoted in-process and rotates, makes the second cam extrusion swinging plate, and the swinging plate drives and strikes the board and remove, moves back and strikes the double salt scab of ash bucket inner wall in advance under the effect of second elastic element afterwards, makes things convenient for the scraper blade to strike off the double salt scab of ash bucket inner wall in advance.

5. This ammonia-soda process soda production process optimization system based on material balance, through making the mother liquor add the preheating section of ammonia still from ammonia still upper portion, make the preheating section can get rid of most carbon dioxide and free ammonia, then the mother liquor mixes with lime breast, make the mixed liquor of formation after combining ammonia in the mother liquor of preheating and the calcium hydroxide in the lime breast fully react, generate free ammonia, flow back the distillation section of ammonia still again, the mixed liquor is heated by the low pressure steam that the bottom lets in, evaporate free ammonia, and discharge through the exhaust chamber, the distillation waste liquid is discharged from ammonia still bottom.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a first cross-sectional view of the present invention;

FIG. 3 is a schematic structural view of portion A of FIG. 2 according to the present invention;

FIG. 4 is a schematic structural diagram of portion B of FIG. 2 according to the present invention;

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

FIG. 6 is a schematic structural view of portion C of FIG. 5 in accordance with the present invention;

FIG. 7 is a schematic view of the construction of the squeegee of the invention;

fig. 8 is a schematic structural view of the exhaust chamber of the present invention.

In the figure: 1. a pre-ash barrel; 2. a supporting seat; 3. a motor; 301. a rotating shaft; 3011. a first cam; 302. a first bevel gear; 4. rotating the rod; 401. a second bevel gear; 402. a first screw conveying blade; 5. rotating the tube; 501. a third bevel gear; 502. a second screw conveying blade; 503. a water outlet hole; 504. a connecting rod; 6. a screen cylinder; 601. a mesh drum inlet; 602. folding the tube; 603. a net drum main body; 7. a sleeve; 701. a pressing plate; 702. a first elastic element; 8. a squeegee; 801. a swing plate; 802. knocking the plate; 803. a movable rod; 804. a second cam; 805. a second elastic element; 9. a synchronizing wheel; 901. a synchronous belt; 10. an ammonia still; 1011. an ammonia distillation preheating section; 1012. an ammonia distillation section; 11. an exhaust chamber; 111. a cylinder; 1111. a power rod; 1112. a piston; 1113. a first check valve; 112. a second one-way valve.

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.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Example 1:

referring to fig. 1, 2, 3 and 5, a material balance-based ammonia-soda process soda production process optimization system comprises a pre-ash barrel 1 and an ammonia still 10, wherein the pre-ash barrel 1 and the ammonia still 10 are connected with each other through a connecting pipe, the bottom of the pre-ash barrel 1 is connected with a supporting seat 2, the outer wall of the supporting seat 2 is connected with a motor 3, the output end of the motor 3 is connected with a rotating shaft 301, one end of the rotating shaft 301, which is far away from the motor 3, is connected with a first bevel gear 302, the top inner wall and the bottom inner wall of the pre-ash barrel 1 are respectively connected with a rotating rod 4 and a rotating pipe 5 through a first bearing and a second bearing in a rotating mode, the rotating rod 4 is arranged in the rotating pipe 5, the outer walls of the rotating rod 4 and the rotating pipe 5 are respectively connected with a second bevel gear 401 and a third bevel gear 501 which are meshed with the first bevel gear 302, the outer, the inner wall of the rotating pipe 5 is also connected with a filter screen cylinder 6, and the filter screen cylinder 6 is arranged below the first spiral conveying blade 402.

The outer wall of the bottom of the rotating pipe 5 is provided with evenly distributed water outlet holes 503.

The ammonia still 10 comprises an ammonia distillation preheating section 1011 and an ammonia distillation section 1012, the ammonia distillation preheating section 1011 is arranged above the ammonia distillation section 1012, and the pre-ash barrel 1 is communicated with the ammonia distillation section 1012.

The ammonia gas and carbon dioxide in the mother liquor in the alkali-making process are mainly existed in two forms, in which the free ammonia including ammonium carbonate salt and ammonium hydroxide can be directly removed by heating and cooking, but the fixed ammonium in the form of ammonium chloride or ammonium sulfate must be added into lime milk to make chemical decomposition, then the lime milk is heated and distilled, so that the industrial distillation tower can be designed into a combined device of preheating and ash-adding distillation two tower sections, so as to respectively take the tasks of removing free ammonia, carbon dioxide and fixed ammonia from the solution, i.e. the ammonia recovery method is that various ammonia-containing solutions are intensively heated, distilled and recovered, and then the solution is neutralized by using calcium hydroxide Ca (OH)2, and then distilled and recovered, and in the concrete application process of said device, the mother liquor is added into the preheating section of ammonia still 10 from upper portion of ammonia still 10, so that the preheating section can remove most of carbon dioxide and free ammonia, then the mother liquor enters a pre-ashing barrel 1 and is mixed with lime cream, so that the combined ammonia in the preheated mother liquor and calcium hydroxide in the lime cream fully react to form a mixed liquor to generate free ammonia, the free ammonia flows back to a distillation section of an ammonia still 10, the mixed liquor is heated by low-pressure steam introduced from the bottom to evaporate the free ammonia to obtain ammonia gas, and distillation waste liquor is discharged from the bottom of the ammonia still 10, but after the lime cream and the preheated mother liquor are introduced into the pre-ashing barrel 1, the mixed liquor contains a large amount of limestone and calcium oxide particles, calcium sulfate generated by reaction in the mixed materials in the pre-ashing barrel 1 is attached to the surfaces of the large particles to form larger particles, the surface tension of newly generated calcium sulfate crystals is eliminated, the newly generated calcium sulfate is not attached to the barrel wall to a certain degree to avoid the formation of scabbing, the operation of a motor 3 is controlled, the output end of the motor 3 drives a first bevel gear 302 to rotate through a rotating shaft, make first bevel gear 302 mesh with second bevel gear 401 and third bevel gear 501 respectively, dwang 4 and rotating tube 5 rotate, second spiral delivery blade 502 upwards carries the particulate matter and the solution that form, solution and particulate matter that reach the pre-ash bucket 1 top receive first spiral delivery blade 402's effort downstream again, get into rotating tube 5 and move down inside rotating tube 5, accomplish the transport from top to bottom of solution, promote the mixed solution reaction to go on, and can make the particulate matter carry to filter screen cylinder 6 at this in-process, collect the granule in the solution through filter screen cylinder 6, avoid leading to equipment jam, wearing and tearing, and when clearing up pre-ash bucket 1, only need clear up filter screen cylinder 6 can, shorten the repair time, and then guarantee the soda production ability of equipment, reduction in production cost.

Example 2:

referring to fig. 1, 2, 3, 5 and 6, a system for optimizing an ammonia-soda process soda production process based on material balance comprises a pre-ash barrel 1 and an ammonia still 10, wherein the pre-ash barrel 1 and the ammonia still 10 are connected with each other through a connecting pipe, the bottom of the pre-ash barrel 1 is connected with a support base 2, the outer wall of the support base 2 is connected with a motor 3, the output end of the motor 3 is connected with a rotating shaft 301, one end of the rotating shaft 301, which is far away from the motor 3, is connected with a first bevel gear 302, the top inner wall and the bottom inner wall of the pre-ash barrel 1 are respectively connected with a rotating rod 4 and a rotating pipe 5 through a first bearing and a second bearing in a rotating mode, the rotating rod 4 is arranged in the rotating pipe 5, the outer walls of the rotating rod 4 and the rotating pipe 5 are respectively connected with a second bevel gear 401 and a third bevel gear 501 which are meshed with the first bevel gear 302, the, the inner wall of the rotating pipe 5 is further connected with a filter screen cylinder 6, the filter screen cylinder 6 is arranged below the first spiral conveying blade 402 and comprises a screen cylinder inlet 601, a folding pipe 602 and a screen cylinder main body 603, the screen cylinder inlet 601 is fixedly connected to the inner wall of the rotating pipe 5, the folding pipe 602 is connected to the bottom end of the screen cylinder inlet 601, and one end, far away from the screen cylinder inlet 601, of the folding pipe 602 is connected to the top of the screen cylinder main body 603.

The outer wall of the bottom of the rotating pipe 5 is provided with evenly distributed water outlet holes 503.

The filter screen cylinder 6 comprises a screen cylinder inlet 601, a folding pipe 602 and a screen cylinder main body 603, the screen cylinder inlet 601 is fixedly connected to the inner wall of the rotating pipe 5, the folding pipe 602 is connected to the bottom end of the screen cylinder inlet 601, and one end of the folding pipe 602, which is far away from the screen cylinder inlet 601, is connected to the top of the screen cylinder main body 603.

The net drum main body 603 is slidably coupled to the outer wall of the rotating rod 4.

The outer wall of the rotating shaft 301 is connected with a first cam 3011, the outer wall of the rotating rod 4 is connected with a sleeve 7 in a sliding mode, the bottom of the sleeve 7 is movably abutted to the first cam 3011, the top of the sleeve 7 is connected with an extrusion plate 701, the outer wall of the sleeve 7 is sleeved with a first elastic element 702, and two ends of the first elastic element 702 are connected to the inner wall of the bottom of the pre-ash bucket 1 and the outer wall of the bottom of the extrusion plate 701 respectively.

When the device is used for removing scars in a pre-ash barrel 1, firstly, the motor 3 is controlled to operate, the output end of the motor 3 drives the first bevel gear 302 to rotate through the rotating shaft 301, the first bevel gear 302 is respectively meshed with the second bevel gear 401 and the third bevel gear 501, the rotating rod 4 and the rotating pipe 5 rotate, the second spiral conveying blade 502 conveys formed particles and solution upwards, the solution and the particles reaching the top of the pre-ash barrel 1 move downwards under the action of the first spiral conveying blade 402, the mixed blending liquid enters the rotating pipe 5 and moves downwards in the rotating pipe 5, the up-and-down conveying of the solution is completed, the reaction of the mixed solution is promoted to be carried out, in the process, the particles can be conveyed into the filter screen cylinder 6, the particles in the solution are collected through the filter screen cylinder 6, the blockage and the abrasion of equipment are avoided, and when the pre-ash barrel 1 is cleaned, only need clear up filter screen cylinder 6 can, and when axis of rotation 301 drove first bevel gear 302 pivoted, first cam 3011 can rotate along with axis of rotation 301, make first cam 3011 intermittent type nature offset with sleeve pipe 7 bottom, make sleeve pipe 7 drive stripper plate 701 to filter screen cylinder 6's bottom effort, make filter screen cylinder 6 atress vibration and reciprocate, the mesh is blockked up to the particulate matter of avoiding getting into filter screen cylinder 6, influence filter screen cylinder 6's drainage effect, guarantee the normal circulation of liquid between filter screen cylinder 6 and the rotating tube 5.

Example 3:

referring to fig. 4, 5 and 7, a system for optimizing an ammonia-soda process soda production process based on material balance is substantially the same as that in embodiment 2, further, a connecting rod 504 is connected to an outer wall of the rotating pipe 5, a scraper 8 is connected to one end of the connecting rod 504 far away from the rotating pipe 5, and the scraper 8 abuts against an inner wall of the pre-ash barrel 1.

The outer walls of the upper side and the lower side of the scraper 8 are rotatably connected with swing plates 801 through pin shafts, a knocking plate 802 is connected between the two swing plates 801, a second elastic element 805 is connected between the knocking plate 802 and the scraper 8, the knocking plate 802 movably abuts against the inner wall of the pre-ash barrel 1, a movable rod 803 is rotatably connected in the scraper 8, a second cam 804 is connected to the outer wall of the movable rod 803, and the second cam 804 movably abuts against the swing plates 801.

The outer walls of the movable rod 803 and the rotating rod 4 are connected with synchronous wheels 9 matched with each other, and a synchronous belt 901 is connected between the two synchronous wheels 9.

The movable rod 803 can synchronously rotate along with the rotating rod 4 under the action of the synchronous belt 901 and the synchronous wheel 9, so that the movable rod 803 drives the second cam 804 to rotate in the rotating process, the second cam 804 extrudes the swinging plate 801, the swinging plate 801 rotates around a pin shaft as a circle center, the swinging plate 801 drives the knocking plate 802 connected with the swinging plate to move, when the second cam 804 does not extrude the swinging plate 801 any more, the knocking plate 802 moves back under the action of the second elastic element 805 and knocks the double salt scabs on the inner wall of the pre-ash barrel 1, the double salt scabs on the wall of the pre-ash barrel 1 are loosened and fall off, and the scraping plate 8 is convenient to scrape the double salt scabs on the inner wall of the pre-ash barrel 1.

Example 4:

referring to fig. 1 and 8, a system for optimizing an ammonia-soda process soda production process based on material balance is substantially the same as that in embodiment 2, further, an exhaust cavity 11 is arranged at the top of an ammonia still 10, an air cylinder 111 is connected to the inner wall of the exhaust cavity 11, an output end of the air cylinder 111 is connected with a power rod 1111, one end, far away from the air cylinder 111, of the power rod 1111 is connected with a piston 1112, the piston 1112 is slidably connected in the exhaust cavity 11, a first check valve 1113 is arranged in the piston 1112, and a second check valve 112 is connected to the inner wall of the bottom of the exhaust cavity 11.

The concoction liquid in the pre-ash barrel 1 which is completely reacted is heated by low-pressure steam introduced from the bottom in an ammonia distillation section 1012 of an ammonia distillation tower 10, free ammonia is evaporated out, ammonia gas is separated from solution, the operation of the cylinder 111 is controlled, the output end of the cylinder 111 drives the power rod 1111 to contract, the power rod 1111 drives the piston 1112 to move in the exhaust cavity 11, in the process, the second one-way valve 112 is opened, the first one-way valve 1113 is closed, so that the steam distilled from the solution enters the exhaust cavity 11 from the second one-way valve 112, and then the cylinder 111 is controlled to drive the power rod 1111 to stretch, so that the power rod 1111 drives the piston 1112 to move downwards in the exhaust cavity 11, in this process, the second check valve 112 is closed, the first check valve 1113 is opened, the piston 1112 is pressed to absorb the ammonia gas into the exhaust chamber 11, and the ammonia gas is discharged out of the ammonia still 10 through the first one-way valve 1113, so that the ammonia gas is recycled, and the ammonia gas is prevented from being discharged incompletely.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.