阅读说明：本技术 一种扭力脱水筒及高效四级脱水除尘器 (Torsion dewatering cylinder and high-efficient level four dehydration dust remover ) 是由 张少华 李德文 王杰 胥奎 郑磊 刘涛 张小涛 黄立宁 魏伟 隋金君 郭胜均 于 2020-05-09 设计创作，主要内容包括：本发明提供了一种扭力脱水筒及高效四级脱水除尘器,包括壳体,壳体内安装有动力风机,动力风机的后端安装有动力叶轮,动力叶轮的后端设有扭力脱水筒,扭力脱水筒的圆周上沿扭力脱水筒的长度方向设有若干个脱水孔；每个脱水孔处均设有脱水腔,脱水腔远离动力叶轮的一侧为封闭状,脱水腔靠近动力叶轮的一侧为开口状；脱水腔的最低处低于脱水腔所对应的脱水孔的高度；扭力脱水筒的两端均为开口状。本申请提供的高效四级脱水除尘器采用扭力脱水筒后不需要额外增加多层脱水板,从而缩短了除尘器的整体长度,这样除尘器就能安装在掘进机上随着掘进机同步移动,不需要每次都拆了移动后再安装,从而降低了使用成本。(The invention provides a torsion dewatering cylinder and a high-efficiency four-stage dewatering dust collector, which comprise a shell, wherein a power fan is arranged in the shell, a power impeller is arranged at the rear end of the power fan, a torsion dewatering cylinder is arranged at the rear end of the power impeller, and a plurality of dewatering holes are formed in the circumference of the torsion dewatering cylinder along the length direction of the torsion dewatering cylinder; each dehydration hole is provided with a dehydration cavity, one side of the dehydration cavity, which is far away from the power impeller, is closed, and one side of the dehydration cavity, which is close to the power impeller, is open; the lowest part of the dehydration cavity is lower than the height of the dehydration hole corresponding to the dehydration cavity; both ends of the torsion dewatering cylinder are open. The application provides a high-efficient level four dewatering dust remover need not additionally increase multilayer dehydration board after adopting torsion dewatering cylinder to shorten the whole length of dust remover, the dust remover just can install on the entry driving machine along with entry driving machine synchronous motion like this, need not all tear at every turn and install after the removal, thereby reduced use cost.)

1. The torque force dewatering cylinder is characterized in that a plurality of strip-shaped dewatering holes (22) are formed in the torque force dewatering cylinder (14), and a dewatering cavity (20) is formed in the outer wall of each dewatering hole (22); the two ends of the torsion dewatering cylinder are open, one end of the torsion dewatering cylinder is an air inlet end (141), and the other end of the torsion dewatering cylinder is an air outlet end (142); one side of the dehydration cavity (20) close to the air inlet end (141) is in an open shape, and one side of the dehydration cavity (20) close to the air outlet end (142) is in a closed shape; the lowest position of the inner wall of the dehydration cavity (20) is lower than the height of the dehydration holes (22) corresponding to the dehydration cavity (20).

2. The torque dewatering drum according to claim 1, wherein the dewatering chamber (20) is a polygonal dewatering chamber, and a neck (26) is provided at the junction of the dewatering chamber (20) and the torque dewatering drum (14); the included angle alpha between the edges of the two sides of the neck part (26) and the neck part (26) is an acute angle.

3. The torque dewatering drum according to claim 2, wherein the opening size of the neck (26) increases progressively outward from the torque dewatering drum (14).

4. The high-efficiency four-stage dehydration dust collector is characterized by comprising a shell (21), wherein a power fan (5) is installed in the shell (21), a power impeller (6) is installed at the rear end of the power fan (5), a torsion dewatering cylinder (14) is arranged at the rear end of the power impeller (6), and the torsion dewatering cylinder (14) is the torsion dewatering cylinder according to any one of claims 1 to 3.

5. The high-efficiency four-stage dewatering dust collector according to claim 4, wherein a water film impeller (4) is arranged at the front end of the power fan (5), and the water film impeller (4) comprises a first base (41), a first rotating shaft (42), a first water storage cavity (43), a second water storage cavity (44) and first blades (45); the first base (41) is installed in the shell (21), the first rotating shaft (42) is rotatably installed in the first base (41), a plurality of channels (47) are arranged in the first base (41) along the axial direction of the first rotating shaft (42), the first water storage cavity (43) is connected with a water inlet pipe (1), the second water storage cavity (44) is fixedly connected with the first rotating shaft (42), a water outlet (46) is formed in the second water storage cavity (44), and the first blade (45) is fixedly connected with the second water storage cavity (44); the water outlet (46) is positioned on one side of the first blade (45) close to the first water storage cavity (43).

6. The high-efficiency four-stage dewatering dust collector as claimed in claim 5, wherein the rear end of the torsion dewatering cylinder (14) is provided with a dewatering impeller (8); the dewatering impeller (8) comprises a second base (81), a second rotating shaft (82) and second blades (83); the second base (81) is fixedly installed in the shell (21), the second rotating shaft (82) and the second base (81) are rotatably arranged, and the second blade (83) is fixedly connected with the second rotating shaft (82).

7. The high-efficiency four-stage dewatering dust collector according to claim 6, characterized in that the rear end of the dewatering impeller (8) is connected with a dewatering ring (9) and a corrugated plate (10); and a drainage channel (27) is arranged in the shell of the torsion dewatering cylinder (14), the dewatering impeller (8), the dewatering ring (9) and the corrugated plate (10), and the drainage channel (27) is communicated with a drain pipe (13).

8. The high-efficiency four-stage dewatering dust collector according to claim 6, wherein the second blade (83) comprises a pore plate (16), a locking steel nail (17) and absorbent cotton (18), the pore plate (16) is connected with the second rotating shaft (82), a pore hole (19) is formed in the pore plate (16), the absorbent cotton (18) is arranged in the pore plate (16), and the locking steel nail (17) is arranged along the width direction of the pore plate (16).

9. The high-efficiency four-stage dewatering dust collector according to claim 7, characterized in that the front end of the water film impeller (4) is provided with an air inlet (2), and the rear section of the corrugated plate (10) is provided with an air outlet (11); the diameter of one side, far away from the water film impeller (4), of the air inlet (2) is smaller than that of one side, close to the water film impeller (4), of the air inlet (2); the diameter of one side, far away from the corrugated plate (10), of the air outlet (11) is smaller than that of one side, close to the corrugated plate (10), of the air inlet (2); .

10. The high-efficiency four-stage dewatering dust collector according to claim 8, wherein the shells corresponding to the air inlet (2), the water film impeller (4), the power fan (5) and the air outlet (11) are all provided with silencing cotton (12), and the bottom of the shell (21) is provided with a mounting foot (15).

Technical Field

The invention relates to the technical field of coal mine underground dust removal, in particular to a torsion dewatering cylinder and a high-efficiency four-stage dewatering dust remover.

Background

In underground coal mine mining, a great amount of coal dust, smoke dust and mine dust can be generated on a mining working face. Due to the blocking of the underground space and the limited ventilation condition, the pollution of coal dust, smoke dust, mine dust and the like is serious.

The treatment of coal dust, smoke dust and mine dust is carried out by adopting a dust remover, but the requirement on the dust remover is higher due to the limitation of underground conditions of the coal mine: (1) 550m for treating air volume³Min, (2) environmental noise is less than or equal to 85 decibels, (3), dust removal efficiency is greater than or equal to 98%, (4) and dehydration efficiency is greater than or equal to 95%. If the dust remover is installed on the heading machine, the requirements of (a) the whole length of the dust remover is less than 3.5 meters and (b) the whole length of the dust remover is required to be met simultaneously) And the height of the dust remover is required to be less than 1.2 meters.

The multi-layer dewatering plates adopted in the dewatering treatment of the existing dust remover are limited by two factors of noise and dewatering efficiency, the integral length of the dust remover exceeds 7 meters and the height of the dust remover exceeds 1.4 meters on the premise of meeting two indexes of air volume and dewatering, and the integral length of the existing dust remover is too long to move synchronously with the development machine. The installation position of the dust remover needs to be moved along with the advancing of the tunneling advancing ruler, but the dust remover is installed only in a monorail crane mode due to the fact that the whole dust remover is too long, so that the dust remover needs to be dismounted and pushed down to the right position and then installed each time the dust remover is moved, the labor of workers is increased, and the use cost is high.

Disclosure of Invention

The invention provides a torsion dewatering cylinder and a high-efficiency four-stage dewatering dust remover, aiming at the problems that the existing dust remover adopts a plurality of layers of dewatering plates for dewatering, so that the whole length of the dust remover is longer, the dust remover cannot be installed on a heading machine, and the dust remover needs to be detached and moved after the heading machine moves, so that the use cost is high.

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

on one hand, the application provides a torsion dewatering cylinder, a plurality of strip-shaped dewatering holes are formed in the torsion dewatering cylinder, and a dewatering cavity is formed in the outer wall of each dewatering hole; the two ends of the torsion dewatering cylinder are open, one end of the torsion dewatering cylinder is an air inlet end, and the other end of the torsion dewatering cylinder is an air outlet end; one side of the dehydration cavity close to the air inlet end is in an open shape, and one side of the dehydration cavity close to the air outlet end is in a closed shape; the lowest position of the inner wall of the dehydration cavity is lower than the height of the dehydration hole corresponding to the dehydration cavity.

Preferably, the dehydration cavity is a polygonal dehydration cavity, and a neck is arranged at the joint of the dehydration cavity and the torsion dehydration cylinder; the included angle alpha between the edges of the two sides of the neck and the neck is an acute angle. If the contained angle between the limit of neck both sides and the neck is right angle or obtuse angle, then sewage gets into and can directly flow out again owing to not blockking behind the dehydration chamber that is located torque dewatering section of thick bamboo topmost, the limit of the neck both sides in dehydration chamber with contained angle alpha between the neck is the acute angle, just so can guarantee to form a gutter at the bottom in every dehydration chamber, and sewage gets into and is given by the limit of neck both sides behind the lowest in the dehydration chamber of topmost and blocks, can not flow backwards out.

Preferably, the size of the opening of the neck portion is gradually increased outwards from the torsion dewatering cylinder. The opening of the neck part is gradually increased outwards from the torsion dewatering cylinder, so that after sewage flows into the dewatering cavity, the sewage can be prevented from flowing back into the torsion dewatering cylinder.

On the other hand, this application still provides a high-efficient level four dewatering dust remover, which comprises a housin, install the power fan in the casing, power impeller is installed to the rear end of power fan, power impeller's rear end is equipped with torsion dewatering cylinder, torsion dewatering cylinder is above-mentioned torsion dewatering cylinder.

Preferably, a water film impeller is arranged at the front end of the power fan, and the water film impeller comprises a first base, a first rotating shaft, a first water storage cavity, a second water storage cavity and a first blade; the first base is installed in the shell, the first rotating shaft is rotatably installed in the first base, a plurality of channels are arranged in the first base along the axial direction of the first rotating shaft, a water inlet pipe is connected to the first water storage cavity, the second water storage cavity is fixedly connected with the first rotating shaft, a water outlet is formed in the second water storage cavity, and the first blade is fixedly connected with the second water storage cavity; the water outlet is positioned on one side of the first blade close to the first water storage cavity.

The filter screen is established to current dust remover in air intake department, just so need regularly clear up the filter screen, need shut down the dust remover when clearing up the filter screen and then pull down the clearance, if do not clear up will lead to the filter screen to become invalid and lead to the dust removal motor to burn out even. The application provides a high-efficient level four dehydration dust remover is at the front end installation water film impeller of power fan, and clean water gets into first water storage intracavity through the inlet tube, then flows into the second water storage intracavity from the passageway in the first base, and under the effect of power impeller distinguished and admirable, first pivot is rotated, drives second water storage chamber and first blade and rotates, and the delivery port of water follow first blade front end in the second water storage intracavity is discharged, forms the water film between adjacent first blade. When the dusty airflow flows backwards through the rotating water film impeller, water and dust are fully mixed under the intercepting, collision and friction effects of the water film, so that a filter screen is not additionally arranged for filtering the dust.

The dusty air current need pass the water film and can get into the rear end to compare the mode that adopts the filter screen to catch dirt in the current and improved the dust capture rate. Meanwhile, the power fan is arranged behind the water film impeller, a wall is formed when the water film impeller rotates, and the noise of the power fan is blocked, so that the noise of the high-efficiency four-stage dehydration dust remover is reduced.

Preferably, the rear end of the torque force dewatering cylinder is provided with a dewatering impeller; the dehydration impeller comprises a second base, a second rotating shaft and second blades; the second base is fixedly arranged in the shell, the second rotating shaft and the second base are rotatably arranged, and the second blade is fixedly connected with the second rotating shaft. The sewage-containing air flow enters the dewatering impeller after being dewatered by the first stage of the torsion dewatering cylinder, the dewatering impeller passively rotates at a high speed after the action of the dust-containing air flow, and the sewage which is not thrown into the dewatering cavity is secondarily dewatered under the action of the dewatering impeller rotating at a high speed.

Preferably, the rear end of the dewatering impeller is connected with a dewatering ring and a corrugated plate; and a drainage tank is arranged in the shell of the torsion dewatering cylinder, the dewatering impeller, the dewatering ring and the corrugated plate, and a drain pipe is communicated with the drainage tank. And the three-stage dehydration is continued through the dehydration ring. Water can produce water smoke under the effect of wind current, and water smoke can lead to the field of vision unclear more, adopts the buckled plate to disappear fog with the water smoke in the air current, makes water smoke become the water droplet, and the quality of water droplet is heavier on the one hand like this, can flow into the drainage tank along the buckled plate and further realize the dehydration, makes the water smoke less in the spun wind current simultaneously, increases the definition. And discharging the clean air flow after the four-stage dehydration into a roadway to finish one-time dust removal operation. Through installing power fan between water film impeller and torsion dewatering cylinder, dehydration ring and buckled plate also can play the effect of making an uproar to power fan to reduce the whole noise of high-efficient level four dehydration dust remover.

Preferably, the blades of the dewatering impeller comprise a pore plate, a locking steel nail and absorbent cotton, the pore plate is connected with the second rotating shaft, pores are formed in the pore plate, the absorbent cotton is arranged in the pore plate, and the locking steel nail is arranged along the width direction of the pore plate and used for fixing the absorbent cotton; the absorbent cotton is made of porous absorbent materials. The sewage that is not taken off by the torque force dewatering cylinder is further adsorbed by the cotton that absorbs water, and the dehydration impeller rotates, and the water that adsorbs on the cotton that absorbs water is thrown away under the effect of centrifugal force, and such dehydration effect is better than the effect of direct rotatory dehydration. In order to prevent that cotton that absorbs water from twisting into a heap after absorbing water, consequently just lock through every one end distance of locking steel nail, the second blade is rotatory under the effect of wind current, throws away the cotton water that absorbs water through the aperture.

Preferably, the front end of the water film impeller is provided with an air inlet, and the rear section of the corrugated plate is provided with an air outlet; the diameter of one side of the air inlet, which is far away from the water film impeller, is smaller than the diameter of one side of the air inlet, which is close to the water film impeller; the air outlet is kept away from the diameter of corrugated plate one side is less than the air inlet is close to the diameter of corrugated plate one side. The diameters of the air inlet and the air outlet are reduced towards two sides by the power fan, so that noise can be effectively reduced.

Preferably, the shells corresponding to the air inlet, the water film impeller, the power fan and the air outlet are respectively provided with silencing cotton; the bottom of the shell is provided with a mounting foot. Through increase the amortization cotton on air intake, water film impeller, power fan and the shell that the air outlet corresponds, the sound that can further reduce the windy sound of flowing and reduce power fan's sound. The efficient four-stage dehydration dust remover can be arranged on the heading machine through the mounting feet and moves along with the heading machine.

Compared with the prior art, the invention has the beneficial effects that:

the application provides a torque force dewatering cylinder, water get into the dehydration chamber after, the direction of rivers is opposite with the direction of wind in torque force dewatering cylinder, and the dehydration chamber is the confined at the air-out end of torque force dewatering cylinder, consequently can avoid flowing into the water of dehydration intracavity again and be drawn into the wind flow in, and such dehydration effect is better.

The application provides a high-efficient level four dewatering dust remover increases the torsion dewatering cylinder through the rear end at power impeller, is equipped with the dehydration chamber on the torsion dewatering cylinder, and sewage is thrown into the dehydration chamber at a high speed under power impeller's effect, dewaters under the effect of centrifugal force, and the distinguished and admirable then backward continues to flow, because one side that power impeller was kept away from in the dehydration chamber is the closed form, is close to one side of power impeller is the opening form, consequently is thrown into the sewage that dewaters the intracavity and can not backward flow, but flows forward and then flows out from the opening of dehydration chamber front end, and the flow direction of sewage is opposite with the direction that distinguished and admirable, realizes reverse dehydration, and the sewage that is thrown into the dehydration chamber also can not be drawn into again under distinguished and admirable effect and admirable and flow into the rear portion. The application provides a high-efficient level four dewatering dust remover need not additionally increase multilayer dehydration board after adopting torsion dewatering cylinder to shorten the whole length of dust remover, the dust remover just can install on the entry driving machine along with entry driving machine synchronous motion like this, need not all tear at every turn and install after the removal, thereby reduced use cost.

Description of the drawings:

FIG. 1 is a cross-sectional view of the overall structure of the high-efficiency four-stage dewatering dust collector provided by the present application;

FIG. 2 is a first schematic structural view of a torque dewatering cylinder;

FIG. 3 is a schematic structural view II of the torque dewatering cylinder;

FIG. 4 is a schematic view of the dewatering principle of the torque dewatering drum;

FIG. 5 is a cross-sectional view of a water film impeller;

FIG. 6 is a cross-sectional view of a dewatering impeller;

FIG. 7 is a schematic view of a first blade configuration;

FIG. 8 is a schematic view of a second blade configuration;

FIG. 9 is a sectional view of a polygonal dehydration chamber;

fig. 10 is a cross-sectional view a-a of fig. 3.

The labels in the figure are: 1-a water inlet pipe, 2-an air inlet, 3-a first oil injection pipe, 4-a water film impeller, 41-a first base, 42-a first rotating shaft, 43-a first water storage cavity, 44-a second water storage cavity, 45-a first blade, 46-a water outlet, 47-a channel, 5-a power fan, 6-a power impeller, 7-a second oil injection pipe, 8-a dehydration impeller, 81-a second base, 82-a second rotating shaft, 83-a second blade, 9-a dehydration ring, 10-a corrugated plate, 11-an air outlet, 12-noise reduction cotton, 13-a drainage pipe, 14-a torsion dehydration cylinder, 141-an air inlet end, 142-an air outlet end, 15-a mounting foot, 16-a pore plate, 17-a locking steel nail and 18-water absorption cotton, 19-pore space, 20-dehydration cavity, 21-shell, 22-dehydration hole, 23-first arc, 24-second arc, 25-third arc, 26-neck, 27-drainage groove.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

On one hand, as shown in fig. 2 and 3, the present application provides a torque force dewatering cylinder, wherein a plurality of strip-shaped dewatering holes 22 are formed on the torque force dewatering cylinder 14, and a dewatering cavity 20 is formed at the outer wall of each dewatering hole 22; the two ends of the torsion dewatering cylinder are open, one end of the torsion dewatering cylinder is an air inlet end 141, and the other end is an air outlet end 142; one side of the dehydration cavity 20 close to the air inlet end 141 is open, and one side of the dehydration cavity 20 close to the air outlet end 142 is closed; the lowest position of the inner wall of the dewatering cavity 20 is lower than the height of the dewatering hole 22 corresponding to the dewatering cavity 20. The length of the dewatering holes 22 is less than that of the torque dewatering cylinder 14, the length of the dewatering cavity 20 is the same as or slightly longer than that of the dewatering holes 22, and the length ratio of the dewatering cavity 20 is less than that of the torque dewatering cylinder 14, so that the sewage flows out along the outer wall of the torque dewatering cylinder 14 after flowing out from the left side of the dewatering cavity 20, as shown in fig. 10.

The dehydration cavity 20 is a polygonal dehydration cavity, and a neck part 26 is arranged at the joint of the dehydration cavity 20 and the torsion dehydration cylinder 14; the included angle alpha between the edges at the two sides of the neck part 26 and the neck part 26 is an acute angle; the opening size of the neck 26 increases gradually outward from the torque dewatering cylinder 14. . The dewatering cavities 20 may have other shapes, as shown in fig. 2, as long as the lowest position of the inner wall of each dewatering cavity 20 is lower than the height of the dewatering holes 22 corresponding to the dewatering cavity 20, so that the sewage can not flow into the torsion dewatering cylinder after entering the dewatering cavity 20.

As shown in fig. 1, the present application further provides a high-efficiency four-stage dewatering dust collector, which comprises a housing 21, wherein a power fan 5 is installed in the housing 21, a power impeller 6 is installed at the rear end of the power fan 5, a torsion dewatering cylinder 14 is installed at the rear end of the power impeller 6, a plurality of dewatering holes 22 are formed in the circumference of the torsion dewatering cylinder 14 along the length direction of the torsion dewatering cylinder 14, and the dewatering holes 22 may be in a bar shape or in other shapes. Each dewatering hole 22 is provided with a dewatering cavity 20, one side of the dewatering cavity 20 far away from the power impeller 6 is in a closed shape, and one side of the dewatering cavity 20 close to the power impeller 6 is in an open shape. The lowest part of the dewatering cavities 20 is lower than the height of the dewatering holes 22 corresponding to the dewatering cavities 20, that is, the lowest part of each dewatering cavity 20 is lower than the height of the corresponding dewatering hole in the vertical direction; both ends of the torque dewatering cylinder 14 are open. The lowest part of each dehydration cavity 20 can be provided with a water flowing hole or not, so that the sewage directly flows out from the opening of the dehydration cavity 20 close to the air inlet end 141. If water flow holes are provided along the length of the dehydration chamber 20, it is possible to reduce the dehydration effect.

The dewatering holes 22 on the torque dewatering cylinder 14 are at a certain distance from both sides of the torque dewatering cylinder 14, that is, the holes 22 do not penetrate the length direction of the entire torque dewatering cylinder 14, and the length of the dewatering holes 22 is smaller than that of the torque dewatering cylinder 14. After the sewage flows out through the opening of the dewatering cavity 20 close to the air inlet end 141, the sewage on the upper surface flows downwards along the outer wall of the torsion dewatering cylinder 14 and then is discharged, part of the wind flow is drawn into the dewatering cavity, part of the sewage flows out from the drainage groove on the upper part of the shell under the action of the wind flow, the water flowing grooves on the shell are communicated, and even if the sewage flows into the sewage groove on the upper part of the shell, the sewage flows into the drainage groove 27 on the bottom part along the shell, and finally flows into the discharge pipe 13 and then is discharged.

The foremost end of high-efficient level four dehydration dust remover is equipped with air intake 2, and the diameter of air intake 2 increases from the front to back gradually, and air intake 2 department installs water film impeller 4, and water film impeller 4's base is fixed in air intake 2 department.

As shown in fig. 5, the water film impeller 4 includes a first base 41, a first rotating shaft 42, a first water storage chamber 43, a second water storage chamber 44, and a first blade 45; first base 41 is installed in casing 21, and first pivot 42 rotates and installs in first base 41, is equipped with a plurality of passageway 47 along the axial direction of first pivot 42 in first base 41, is connected with inlet tube 1 on the first water storage chamber 43, second water storage chamber 44 and first pivot 42 fixed connection, and one side that second water storage chamber 44 is close to first water storage chamber 43 is equipped with delivery port 46, first blade 45 and second water storage chamber 44 fixed connection. In order to ensure that the resistance of the water film impeller 4 is small when the water film impeller 4 rotates, the first oil injection pipe 3 is also arranged on the water film impeller 4, and lubricating oil is provided for the first rotating shaft 42 of the water film impeller 4 through the first oil injection pipe 3; the first blade 45 may be a common plastic blade.

The filter screen is established to current dust remover in 2 departments of air intake, just so need regularly clear up the filter screen, need shut down the dust remover when clearing up the filter screen and then pull down the clearance, if do not clear up will lead to the filter screen to become invalid and lead to the dust removal motor to burn out even, regular clearance has just caused the maintenance cost higher.

The application provides a high-efficient level four dewatering dust remover is at power fan 5's front end installation water film impeller 4, clean water gets into first water storage chamber 43 through inlet tube 1 in, then flow into second water storage chamber 44 from passageway 47 in the first base 41 in, under the effect of power impeller 6 wind current, first pivot 42 rotates, drive second water storage chamber 44 and first blade 45 and rotate, the delivery port 46 discharge of water from first blade 45 front end in the second water storage chamber 44, form the water film of about 100mm thickness together between adjacent first blade 45, realize the rotatory dust catching water film of negative pressure. When the dusty airflow flows backwards through the rotating water film impeller, water and dust are fully mixed under the interception, collision and friction effects of the water film, so that a filter screen is not required to be additionally arranged for filtering the dust; therefore, the machine does not need to be stopped for cleaning, and the maintenance cost is reduced. Because a water film is formed between adjacent impeller blades of the water film impeller 4, the dust-containing air flow can enter the rear end only by passing through the water film, thereby improving the dust catching rate compared with the existing dust catching mode of a filter screen. The water outlet 46 is arranged in front of the first blade 45, and if the water outlet 46 is arranged behind the first blade, wind can blow water backwards to form no water film.

Set up power fan 5 at the back end of water film impeller 4, formed a stifled wall when water film impeller 4 is rotatory, blockked power fan 5's noise to the noise of high-efficient level four dehydration dust remover has been reduced. As shown in fig. 5, the blades of the water film impeller 4 are made of plastic.

The rear end of the water film impeller 4 is provided with a power fan 5, the tail part of the power fan 5 is provided with a power impeller 6, after the power fan 5 is powered, the power impeller 6 rotates to generate rotary airflow, so that the water film impeller 4 is driven to rotate, and the dusty airflow is mixed with the water film on the water film impeller 4 to form sewage. The rear section of the power fan 5 is closely provided with a torsion dewatering cylinder 14, and the torsion dewatering cylinder 14 is provided with a plurality of dewatering cavities 20.

As shown in fig. 2, the dehydration chamber 20 may be an arc-shaped dehydration chamber; the dehydration cavity 20 comprises a first circular arc 23, a second circular arc 24 and a third circular arc 25; the first circular arc 23 and the third circular arc 25 are relatively inwards convex, the second circular arc 24 is outwards convex relative to the first circular arc 23 and the second circular arc 24, the first circular arc 23 and the second circular arc 24 are in smooth transition, and the second circular arc 24 and the third circular arc 25 are in smooth transition. The two ends of the dewatering cavity 20 are fixedly connected with the torsion dewatering cylinder 14, the end surface of the dewatering cavity 20 at one side of the dewatering impeller is closed, and the lowest part of each dewatering cavity 20 is lower than the height of the corresponding dewatering hole 22 in the vertical direction so as to form a ditch for sewage to flow. The opening of the dewatering chamber 20 is larger than the diameter of the dewatering holes 22. The smallest distance between the first circular arc 23 and the third circular arc 25 is larger than the diameter of the dewatering hole 22.

As shown in fig. 3, the dewatering chamber 20 may also be a polygonal dewatering chamber, and a neck 26 is provided at the junction of the dewatering chamber 20 and the torque dewatering cylinder 14; the opening of the neck 26 increases from the torque dewatering cylinder 14 to the dewatering chamber 20. In order to ensure that the sewage cannot flow back, the included angle alpha between the edges at the two sides of the neck part 26 and the neck part 26 is an acute angle. Because the dehydration cavity 20 is closed near the air outlet end 142 and opened near the air inlet end 141, the power impeller 6 throws the air flow containing sewage into the dehydration cavity 20, and then the sewage can only flow to the air inlet end 141 and then flows into the drainage groove 27 and then enters the drainage pipe 13, thereby realizing primary dehydration.

The rear end of the torque force dewatering cylinder 14 is provided with a dewatering impeller 8, the dewatering impeller 8 is driven by the rotating air flow generated by the rotation of the power impeller 6 to synchronously rotate, and the sewage passing through the torque force dewatering cylinder 14 is further dewatered under the action of the dewatering impeller 8. What present adopted basically is that the filter screen dewaters, and this application is further dewatered through dehydration impeller 8, and dehydration impeller 8 further drives sewage rotatory when rotatory, and sewage is thrown away under the effect of centrifugal force when rotatory, and then the secondary dewatering. Like the water film impeller 4, in order to make the resistance of the dehydration impeller 8 smaller when rotating, the second oil injection pipe 7 is provided on the dehydration impeller 8, and lubricating oil is periodically added to the second rotating shaft 82 of the dehydration impeller 8 through the second oil injection pipe 7.

As shown in fig. 6, the dewatering impeller 8 includes a second base 81, a second rotating shaft 82, and second blades 83; a dewatering impeller; the second base 81 is fixedly installed in the housing 21, the second rotating shaft 82 is rotatably installed with the second base 81, and the second blade 83 is fixedly connected with the second rotating shaft 82.

As shown in fig. 8, the blades of the dewatering impeller 8 include an orifice plate 16, locking steel nails 17, and absorbent wool 18, as shown in fig. 6, the absorbent wool 18 is made of a porous absorbent material. The pore plate 16 is connected with the base of the dewatering impeller 8, the pore plate 16 is provided with a pore 19, the middle of the pore plate 16 is filled with absorbent cotton 18, in order to prevent the absorbent cotton 18 from being twisted into a group when rotating, a plurality of locking steel nails 17 are arranged along the width direction of the pore plate 16, and the absorbent cotton 18 is prevented from sliding through the locking steel nails 17.

The application provides a high-efficient level four dehydration dust remover is through setting up torsion dewatering cylinder 14, realizes the one-level dehydration, compares in current dust remover in order to realize the dehydration effect, needs many layers dehydration board, has just so shortened the length of dust remover, and this application has reduced the holistic length of high-efficient level four dehydration dust remover through design torsion dewatering cylinder 14.

The rear end of the dehydration impeller 8 is provided with a dehydration ring 9 and a corrugated plate 10, the sewage which is not dehydrated by the dehydration impeller 8 is subjected to three-stage dehydration under the forced rotation action of the dehydration ring 9, and the residual sewage mist flow is subjected to four-stage forced dehydration and mist elimination after entering the corrugated plate 10.

The rear end of buckled plate 10 is equipped with air outlet 11, and the clean air current after dehydrating through the level four disperses the tunnel through the air exit that reduces, accomplishes the operation of once removing dust. The diameter of the air outlet 11 is gradually reduced according to the direction of the air flow, and the noise reduction cotton 12 is arranged on the shell at the air inlet 2, the water film impeller 4, the power fan 5 and the air outlet 11, so that the noise can be further reduced. The shell around the air inlet and the motive fan of the high-efficiency four-stage dehydration dust collector can be also provided with silencing cotton for silencing. Be equipped with installation foot 15 in the bottom of whole high-efficient level four dehydration dust remover, the high-efficient level four dehydration dust remover that this application provided just can eliminate about 70% moisture through torque dewatering section of thick bamboo 14 owing to set up torque dewatering section of thick bamboo 14, and current needs use the multilayer filter screen just can reach this effect to high-efficient level four dehydration dust remover's whole length has been shortened.

The working process is as follows: the power fan 5 is started, the power impeller 6 rotates, the rotary negative pressure airflow generated by the rotation of the power impeller 6 drives the water film impeller 4 and the dehydration impeller 8 to rotate, water enters the first base 41 of the water film impeller 4 from the water inlet pipe 1 and then is sprayed onto the blades of the water film impeller 4, a water film is formed between the blades, and the dusty airflow enters the water film and then is fully mixed with dust under the actions of interception, collision and friction of the water film to form sewage airflow.

The sewage air current passes through the high-speed rotation of power impeller 6, sewage is thrown into in dehydration chamber 20 through dehydration hole 22 under the effect of centrifugal force, dehydration chamber 20 is close to air-out end 142 side and is closed, the lowest department in dehydration chamber 20 forms a ditch, sewage flows to air inlet end 141 from being close to air-out end 142 one side along the ditch at dehydration chamber 20, flow out from the opening of air inlet end 141 side, the wind current flows to air-out end 142 from air inlet end 141, the water current direction in the dehydration chamber 20 is opposite with the direction of the wind current in torsion dehydration section of thick bamboo 14, realize one-level reverse dehydration, as shown in fig. 4.

The sewage air flow which is not dewatered by the torsion dewatering cylinder 14 falls onto the rotary dewatering impeller 8 after passing through the torsion dewatering cylinder 14 and is absorbed by the absorbent cotton 18 on the dewatering impeller 8, and the dewatering impeller 8 rotates to throw out the water on the absorbent cotton 18 to realize secondary dewatering.

The sewage air flow which is not dewatered by the dewatering impeller 8 is dewatered in a third stage by the dewatering ring 9, finally the residual sewage mist flow enters the corrugated plate 10 to be dewatered in a fourth stage and eliminated, and the clean air flow after the dehydration in the fourth stage is dispersed into a roadway through the air outlet 11, so that the primary dedusting operation is completed. The sewage flowing out from the opening of the dewatering cavity 20 close to the air inlet end 141 side enters the drainage groove 27 and is finally discharged through the drainage pipe 13, and the sewage which is dewatered by the dewatering impeller 8, the dewatering ring 9 and the corrugated plate 10 also enters the drainage groove 27 and is finally discharged through the drainage pipe 13.

The power fan 5 is installed between the water film impeller 4 and the dewatering impeller 8, and the equal blades on the two sides rotate to form a wall, so that sound can be isolated, and noise can be reduced.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.