Pulse bag type dust collector for rice processing

Abstract

The invention discloses a pulse bag type dust collector for rice processing, which belongs to the field of pulse bag type dust collectors, and is characterized in that ratchet mechanisms, namely a ratchet, a pawl I and a pawl II, are arranged at the joint of a spray pipe body and a connecting pipe and are connected through an L-shaped swing arm, a connecting pile part, an L-shaped connecting sheet and an arc-shaped limiting groove; the spraying pipe body and the interior of the connecting pipe are driven by the pressure intensity in the pipeline and the ratchet wheel mechanism every time the spraying pipe body and the interior of the connecting pipe are inflated, the spraying pipe body can be driven to rotate in one direction, the spraying directions of the spraying holes are sequentially changed till all dust in the dust collecting bag is blown, the probability that dust blowing dead corners appear on the dust collecting bag is reduced, and the dust collecting efficiency is improved. And a driving mechanism of the ratchet wheel is in a pure mechanical structural form, so that additional arrangement of a motor and arrangement of a circuit for control are not needed, and the reliability is better.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of pulse bag type dust collector, more particularly to a pulse bag type dust collector for rice processing. BACKGROUND

[0002] In the rice processing industry, from the original grain cleaning, hulling, rice milling to finished product packaging, a large amount of dust will be generated. Among them, the screening and winnowing process in the original grain cleaning stage will separate the impurities such as soil and chaff debris in the paddy; the chaff dust generated by the hulling of paddy has small particle size and large output; the rice bran dust formed by the shedding of the surface of brown rice in the rice milling process has both viscosity and flowability. If these dusts are not treated in time, not only will they diffuse in the production workshop to harm the workers, but also may even cause dust explosion, so it is particularly necessary to use dust removal equipment for dust removal.

[0003] The dust removal equipment widely used at present is a pulse bag type dust collector. Although this equipment has many advantages, the inventors have found the following shortcomings in actual use:

[0004] For example, the existing pulse bag type dust collector is internally provided with a plurality of air supply pipes, and each air supply pipe is provided at the bottom with a plurality of air supply branch pipes, the air supply branch pipes extend into the corresponding filter cloth bags, a plurality of column nozzles are equidistantly formed on the outer wall of the air supply branch pipe in the longitudinal direction, and the compressed gas enters the air supply branch pipe and is sprayed out from the column nozzles, so as to achieve the effect of circular spraying and circular bag cleaning in the filter cloth bag. In actual use, since the bottom of the air supply branch pipe is far away from the top, the pressure of the compressed gas entering the air supply branch pipe will gradually decrease from top to bottom during spraying, resulting in a low cleaning effect of the filter cloth bag at the bottom position. Moreover, the plurality of column nozzles equidistantly formed on the outer wall of the air supply branch pipe in the longitudinal direction have a large number of nozzles, which aggravates the phenomenon that the pressure of the compressed gas entering the air supply branch pipe gradually decreases from top to bottom during spraying. Therefore, the present application proposes a pulse bag type dust collector for rice processing to solve the above problems. SUMMARY

[0005] 1. Technical problem to be solved

[0006] The existing pulse bag type dust collector has the problem that the bottom of the air supply branch pipe is far away from the top, so the pressure of the compressed gas entering the air supply branch pipe will gradually decrease from top to bottom during spraying, resulting in a low cleaning effect of the filter cloth bag at the bottom position. Moreover, the plurality of column nozzles equidistantly formed on the outer wall of the air supply branch pipe in the longitudinal direction have a large number of nozzles, which aggravates the phenomenon that the pressure of the compressed gas entering the air supply branch pipe gradually decreases from top to bottom during spraying.

[0007] 2. Technical solution

[0008] To solve the above problems, the application adopts the following technical solution.

[0009] A pulse bag dust collector for rice processing, comprising a dust collector box body, a plurality of identical spray pipe mechanisms are arranged inside the dust collector box body;

[0010] The spray pipe mechanism comprises a spray pipe body, a ratchet wheel is fixedly installed at the top end of the spray pipe body, a plurality of spray holes are equidistantly formed in one side of the outer wall of the spray pipe body, a collar is rotatably connected to the outer wall of the spray pipe body at the bottom of the ratchet wheel, an L-shaped swing arm is fixedly welded to one side of the top of the collar, a first pawl is rotatably connected to the top of the L-shaped swing arm through a positioning stake, the end of the first pawl is engaged with the corresponding tooth gap of the ratchet wheel, a supporting spring one is fixedly welded between the outer wall of the first pawl and the inner wall of the L-shaped swing arm, and a connecting stake is fixedly welded to the outer wall of the L-shaped swing arm.

[0011] The top end of the spray pipe body is in an open structure, a connecting pipe is arranged on the top opening of the spray pipe body, a sleeving edge portion is fixedly connected to the top end of the connecting pipe, a seat plate portion is fixedly welded to one side of the outer wall of the connecting pipe, a baffle and a second positioning stake are fixedly welded to the bottom of the seat plate portion, a second pawl is rotatably connected to the second positioning stake, the end of the second pawl is engaged with the corresponding tooth gap of the ratchet wheel, and a supporting spring two is fixedly welded between the outer wall of the second pawl and the inner wall of the baffle.

[0012] A mounting pipe cap is sleeved on the top of the connecting pipe, an L-shaped connecting piece is fixedly welded to one side of the outer wall of the mounting pipe cap, an arc-shaped limiting groove is formed in the L-shaped connecting piece, the connecting stake portion is slidably connected inside the arc-shaped limiting groove, a threaded mounting section, a sliding section and an anti-falling edge are arranged on the inner wall of the mounting pipe cap, the connecting pipe extends to the inside of the mounting pipe cap through the anti-falling edge, the sleeving edge portion is slidably connected inside the sliding section, a return spring is sleeved on the connecting pipe between the sleeving edge portion and the anti-falling edge, and a sealing ring one is fixedly installed on the inner wall of the anti-falling edge at the connecting position of the anti-falling edge and the connecting pipe.

[0013] Further, a plurality of grooves are formed in the sleeving edge portion, a plurality of longitudinal limiting edges are fixedly connected to the inner wall of the sliding section at positions corresponding to the grooves, and the grooves are slidably connected to the longitudinal limiting edges at corresponding positions.

[0014] Further, the connecting pipe at the bottom of the seat plate is sleeved with a sealing ring two and a bearing, the outer wall of the sealing ring two is sleeved with the opening at the top end of the nozzle body, the bearing includes an outer ring and an inner ring, the inner ring is sleeved with the outer wall of the bottom end of the connecting pipe, and the inner ring and the outer wall of the bottom end of the connecting pipe are fixedly installed by screws, and the outer ring is sleeved with the inner wall of the nozzle body, and the outer ring and the inner wall of the nozzle body are fixedly installed by screws.

[0015] Further, the dust collector tank is fixedly installed with a partition plate inside, a plurality of mounting holes are equidistantly formed on the partition plate, a dust cloth bag is fixedly installed in each mounting hole through a cloth bag cage, and a plurality of nozzle mechanisms are sleeved in the dust cloth bag through the mounting holes at corresponding positions.

[0016] Further, the outer wall of the dust collector tank is fixedly installed with a compressed gas tank on one side through a support, the top of the compressed gas tank is fixedly installed with a gas supply pipe through a plurality of electromagnetic valves, the gas supply pipe penetrates into the dust collector tank, a plurality of threaded joints are fixedly installed at the bottom of the gas supply pipe, and the threaded installation section of the nozzle mechanism is fixedly installed with the threaded joint at the corresponding position.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the advantages of the present application are:

[0019] (1) In the present application, only one row of spray holes is formed in the longitudinal direction of the nozzle body, the number of spray holes is reduced, the attenuation probability of the compressed gas in the nozzle body moving from top to bottom is reduced, the spray holes near the bottom of the nozzle body can spray compressed gas at a higher pressure, and the dust removal efficiency of the dust cloth bag at the bottom position is improved.

[0020] (2) In the present application, the ratchet mechanism, i.e. the ratchet, the pawl one and the pawl two, is arranged at the connection between the nozzle body and the connecting pipe, and the nozzle body and the connecting pipe are connected by the L-shaped swing arm, the connecting stake, the L-shaped connecting plate and the arc-shaped limiting groove, so that the nozzle body can be driven to rotate in one direction by the pressure in the pipeline and the driving of the ratchet mechanism every time the pipeline is inflated, the spray direction of the spray hole is changed in turn, until the dust in the dust cloth bag is completely blown out, the probability of dead angle of the dust cloth bag is reduced, and the driving mechanism of the ratchet is a pure mechanical structure, without the need for additional motor and circuit arrangement for control, and the reliability is better. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The dust collector tank structure of the present application is shown in the figure;

[0022] Figure 2 The dust collector box internal part area structure schematic diagram of the present application;

[0023] Figure 3 The dust collector box internal part area structure schematic diagram of the present application; Figure 2 The enlarged structure schematic diagram of A in the present application;

[0024] Figure 4 The dust collector box internal part area structure schematic diagram of the present application;

[0025] Figure 5 The dust collector box internal part area structure schematic diagram of the present application; Figure 4 The dust collector box internal part area structure schematic diagram of the present application;

[0026] Figure 6 The dust collector box internal part area structure schematic diagram of the present application;

[0027] Figure 7 The dust collector box internal part area structure schematic diagram of the present application;

[0028] Figure 8 The dust collector box internal part area structure schematic diagram of the present application; Figure 7 The dust collector box internal part area structure schematic diagram of the present application; Figure 1

[0029] Figure 9 The dust collector box internal part area structure schematic diagram of the present application;

[0030] Figure 10 The dust collector box internal part area structure schematic diagram of the present application; Figure 7 The dust collector box internal part area structure schematic diagram of the present application; Figure 2

[0031] Figure 11 The dust collector box internal part area structure schematic diagram of the present application;

[0032] Figure label explanation:

[0033] 1, the dust collector box internal part area structure schematic diagram of the present application; 2, the dust collector box internal part area structure schematic diagram of the present application; 3, the dust collector box internal part area structure schematic diagram of the present application; 4, the dust collector box internal part area structure schematic diagram of the present application; 5, the dust collector box internal part area structure schematic diagram of the present application; 6, the dust collector box internal part area structure schematic diagram of the present application; 7, the dust collector box internal part area structure schematic diagram of the present application; 8, the dust collector box internal part area structure schematic diagram of the present application; 9, the dust collector box internal part area structure schematic diagram of the present application; 10, the dust collector box internal part area structure schematic diagram of the present application; 11, the dust collector box internal part area structure schematic diagram of the present application; 12, the dust collector box internal part area structure schematic diagram of the present application; 13, the dust collector box internal part area structure schematic diagram of the present application; 14, the dust collector box internal part area structure schematic diagram of the present application; 15, the dust collector box internal part area structure schematic diagram of the present application; 16, the dust collector box internal part area structure schematic diagram of the present application; 17, the dust collector box internal part area structure schematic diagram of the present application; 18, the dust collector box internal part area structure schematic diagram of the present application; 19, the dust collector box internal part area structure schematic diagram of the present application;

[0034] ​​19, dust collector box; 1901, partition; 1902, mounting hole; 1903, dust cloth bag; 20, compressed gas tank; 21, electromagnetic valve; 22, gas supply pipe; 2201, threaded joint. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the specification of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0036] Embodiment 1

[0037] Please refer to Figures 1-11 A pulse bag dust collector for rice processing, comprising a dust collector box 19, a plurality of structure same spray pipe mechanisms 1 are arranged in the dust collector box 19;

[0038] The spray pipe mechanism 1 comprises a spray pipe body 2, a ratchet wheel 3 is fixedly installed at the top end of the spray pipe body 2, a plurality of spray holes 201 are equidistantly arranged on one side of the outer wall of the spray pipe body 2, a sleeve ring 4 is rotatably connected to the outer wall of the spray pipe body 2 at the bottom of the ratchet wheel 3, an L-shaped swing arm 5 is fixedly welded to the top side of the sleeve ring 4, a pawl 6 is rotatably connected to the top of the L-shaped swing arm 5 through a positioning pile 1501, the end of the pawl 6 is engaged with the corresponding tooth gap of the ratchet wheel 3, a supporting spring 7 is fixedly welded between the outer wall of the pawl 6 and the inner wall of the L-shaped swing arm 5, and a connecting pile 502 is fixedly welded to the outer wall of the L-shaped swing arm 5;

[0039] The top end of the spray pipe body 2 is in an open type structure, a connecting pipe 8 is arranged on the top opening of the spray pipe body 2, a sleeve edge 9 is fixedly connected to the top end of the connecting pipe 8, a seat plate 10 is fixedly welded to one side of the outer wall of the connecting pipe 8, a baffle 1001 and a positioning pile 1002 are fixedly welded to the bottom of the seat plate 10, a pawl 11 is rotatably connected to the positioning pile 1002, the end of the pawl 11 is engaged with the corresponding tooth gap of the ratchet wheel 3, and a supporting spring 12 is fixedly welded between the outer wall of the pawl 11 and the inner wall of the baffle 1001.

[0040] The top of the connecting pipe 8 is sleeved with a mounting pipe cap 13, an L-shaped connecting sheet 14 is fixedly welded on one side of the outer wall of the mounting pipe cap 13, an arc-shaped limiting groove 1401 is formed in the L-shaped connecting sheet 14, the connecting pile part 502 is slidingly connected inside the arc-shaped limiting groove 1401, a threaded mounting section 1301, a sliding section 1302 and a anti-falling edge 1303 are arranged on the inner wall of the mounting pipe cap 13, the top of the connecting pipe 8 extends to the inside of the mounting pipe cap 13 through the anti-falling edge 1303, and the sleeving edge part 9 is slidingly connected inside the sliding section 1302, the reset spring 15 is sleeved on the connecting pipe 8 between the sleeving edge part 9 and the anti-falling edge 1303, and the sealing ring I 16 is fixedly installed on the inner wall of the anti-falling edge 1303 at the connecting position of the anti-falling edge 1303 and the connecting pipe 8;

[0041] A group of grooves 901 are formed in the sleeving edge part 9, a group of longitudinal limiting edges are fixedly connected to the inner wall of the sliding section 1302 at positions corresponding to the group of grooves 901, and the grooves 901 are slidingly connected to the longitudinal limiting edges at corresponding positions;

[0042] The sealing ring II 17 and the bearing 18 are sleeved on the connecting pipe 8 at the bottom of the seat plate part 10, the outer wall of the sealing ring II 17 is sleeved at the opening at the top end of the spray pipe body 2, the bearing 18 comprises an outer ring part 1801 and an inner ring part 1802, the inner ring part 1802 is sleeved on the outer wall of the bottom end of the connecting pipe 8 and is fixedly installed between the inner ring part 1802 and the outer wall of the bottom end of the connecting pipe 8 through screws, and the outer ring part 1801 is sleeved on the inner wall of the spray pipe body 2 and is fixedly installed between the outer ring part 1801 and the inner wall of the spray pipe body 2 through screws;

[0043] The dust collector box 19 is fixedly installed inside the dust collector box 19, a plurality of installation holes 1902 are equidistantly formed in the partition plate 1901, a dust removal bag 1903 is fixedly installed in each installation hole 1902 through a cloth bag cage, and the plurality of spray pipe mechanisms 1 are sleeved inside the dust removal bags 1903 through the installation holes 1902 at corresponding positions;

[0044] The compressed gas tank 20 is fixedly installed on one side of the outer wall of the dust collector box 19 through a support, the gas supply pipe 22 is fixedly installed on the top of the compressed gas tank 20 through a plurality of electromagnetic valves 21, the plurality of gas supply pipes 22 all penetrate into the inside of the dust collector box 19, a plurality of threaded joints 2201 are fixedly installed on the bottom of the gas supply pipe 22, and the threaded mounting section 1301 on the spray pipe mechanism 1 is fixedly installed with the threaded joint 2201 at the corresponding position.

[0045] The dust removal principle of the dust removal bag of the pulse bag type dust collector for rice processing is as follows:

[0046] When the dust removal of the dust removal cloth bag 1903 inside the dust remover box 19 is needed, first, several electromagnetic valves 21 on the compressed gas tank 20 are opened, so that the compressed gas inside the compressed gas tank 20 can reach the corresponding position of the spray pipe mechanism 1 through the gas supply pipe 22 and the threaded joint 2201, then enter the inside of the spray pipe body 2 through the installation pipe cap 13 and the connecting pipe 8, and be sprayed out through the longitudinal row of several spray holes 201 of the spray pipe body 2, to perform cleaning and dust removal of the dust removal cloth bag 1903. During the dust removal process, the compressed gas is intermittently supplied to the inside of the spray pipe mechanism 1 at a certain frequency through the electromagnetic valve 21, and the gas supply rate to the inside of the spray pipe mechanism 1 is greater than the gas outlet rate of the several spray holes 201 on the spray pipe body 2, so as to ensure that a certain gas pressure can be formed inside the spray pipe body 2 each time the gas is supplied to the inside of the spray pipe mechanism 1.

[0047] When the compressed gas inside the compressed gas tank 20 enters the inside of the installation pipe cap 13 of the spray pipe mechanism 1 at the corresponding position through the threaded joint 2201, the compressed gas is sprayed out through the connecting pipe 8, the spray pipe body 2 and the several spray holes 201, at the same time, a high-pressure state is formed inside the installation pipe cap 13, the connecting pipe 8 and the spray pipe body 2. At this time, under the action of the pipe pressure, the spray pipe body 2 moves downward together with the connecting pipe 8 at the bottom of the installation pipe cap 13, that is, the sleeving edge part 9 of the connecting pipe 8 moves downward in the sliding section 1302 and compresses the return spring 15. Then, in the process of moving downward of the spray pipe body 2 and the connecting pipe 8, the L-shaped swing arm 5 is driven to move downward by the sleeve ring 4. At this time, since the L-shaped swing arm 5 is slidably connected with the arc-shaped limiting groove 1401 through the connecting stake part 502, and the arc-shaped limiting groove 1401 is in an arc-shaped structure and the L-shaped connecting piece 14 remains in position, the L-shaped swing arm 5 can be deflected and swung, and the ratchet wheel 3 and the spray pipe body 2 are driven to rotate once, so as to change the spray direction of the spray holes 201 of the spray pipe body 2, until the spray execution of the electromagnetic valve 21 is completed and the gas supply is stopped, and the compressed gas inside the spray pipe body 2 is completely sprayed out through the several spray holes 201.

[0048] At this time, the high-pressure state is no longer formed inside the installation pipe cap 13, the connecting pipe 8 and the spray pipe body 2. The return spring 15 rebounds, drives the connecting pipe 8 to move upward through the sleeving edge part 9 and resets the spray pipe body 2 upward. In the process of resetting the spray pipe body 2 upward, the L-shaped swing arm 5 is reversely deflected and reset through the connection of the connecting stake part 502 and the arc-shaped limiting groove 1401, so that the pawl one 6 is inserted into the tooth gap of the next ratchet wheel 3, to prepare for the rotation of the ratchet wheel 3 next time.

[0049] The electromagnetic valve 21 is intermittently opened once, so that the compressed gas is filled into the inside of the spray pipe body 2 once, and the inside of the connecting pipe 8 and the spray pipe body 2 is formed into a high pressure state once, and then through the connection of the L-shaped swing arm 5, the connecting pile part 502, the arc-shaped limiting groove 1401, the pawl one 6 and the ratchet wheel 3, the spray pipe body 2 can be rotated once, the orientation of the compressed gas sprayed by the spray hole 201 is changed, and the inside wall of the dust removal bag 1903 is sprayed until the dust removal bag is cleaned, so that the dust removal bag cleaning work of the pulse bag type dust collector for rice processing is completed.

[0050] Embodiment 2:

[0051] In view of the above embodiment 1, further description is made, refer to Figures 5-11 The pawl one 6 is arranged to push the ratchet wheel 3 when the L-shaped swing arm 5 swings, so as to drive the ratchet wheel 3 and the spray pipe body 2 to rotate, the pawl two 11 is arranged to limit the rotation of the ratchet wheel 3 after the rotation, so as to prevent the ratchet wheel 3 from rotating, the support spring one 7 and the support spring two 12 are arranged to make the end of the pawl one 6 and the pawl two 11 always engage with the tooth gap of the ratchet wheel 3;

[0052] The threaded mounting section 1301 arranged on the inner wall of the mounting cap 13 is convenient for mounting with the threaded joint 2201 of the gas supply pipe 22, the sliding section 1302 can be sleeved outside the sleeving edge part 9 and limited by the groove 901 and the longitudinal limiting edge, so as to assist the connecting pipe 8 and the sleeving edge part 9 to move up and down at the bottom of the mounting cap 13, the anti-off edge 1303 is arranged to facilitate the installation of the reset spring 15 and prevent the sleeving edge part 9 from falling off from the bottom of the mounting cap 13;

[0053] The sealing ring one 16 and the sealing ring two 17 are arranged to seal the connection between the top and the bottom of the connecting pipe 8, so as to prevent the compressed gas in the mounting cap 13 from leaking into the inside of the spray pipe body 2;

[0054] In order to avoid the rotation of the sleeve ring 4 from the spray pipe body 2, an annular rotation flange is arranged on the outer wall of the spray pipe body 2, and an annular rotation groove is arranged on the inner wall of the sleeve ring 4, so that the sleeve ring 4 can rotate and also avoid falling off, so as to improve the stability and reliability of the connection structure;

[0055] The bearing 18 is arranged to improve the flexibility of the rotation of the connection between the bottom of the connecting pipe 8 and the top of the spray pipe body 2, and the outer ring part 1801 and the inner ring part 1802 of the bearing 18 are convenient for mounting with the spray pipe body 2 and the connecting pipe 8 respectively, so as to avoid the rotation interference after installation.

[0056] The above description is only the preferred embodiment of the present application; the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent substitutions or changes according to the technical solution and the improvement concept of the present application within the technical scope disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A pulse-jet bag filter for rice processing, comprising a filter housing (19), characterized in that: A dust remover box (19) is internally provided with a plurality of structure same spray pipe mechanisms (1); The spray pipe mechanism (1) comprises a spray pipe body (2), a ratchet wheel (3) is fixedly installed at the top end of the spray pipe body (2), a plurality of spray holes (201) are equidistantly formed in one side of the outer wall of the spray pipe body (2), a sleeve ring (4) is rotatably connected to the outer wall of the spray pipe body (2) at the bottom of the ratchet wheel (3), an L-shaped swing arm (5) is fixedly welded to one side of the top of the sleeve ring (4), a pawl one (6) is rotatably connected to the top of the L-shaped swing arm (5) through a positioning pile one (501), the end of the pawl one (6) is engaged with the corresponding tooth gap of the ratchet wheel (3), a supporting spring one (7) is fixedly welded between the outer wall of the pawl one (6) and the inner wall of the L-shaped swing arm (5), and a connecting pile portion (502) is fixedly welded to the outer wall of the L-shaped swing arm (5). The top end of the spray pipe body (2) is in an open structure, a connecting pipe (8) is arranged on the top opening of the spray pipe body (2), a sleeving edge portion (9) is fixedly connected to the top end of the connecting pipe (8), a seat plate portion (10) is fixedly welded to one side of the outer wall of the connecting pipe (8), a baffle (1001) and a positioning pile two (1002) are fixedly welded to the bottom of the seat plate portion (10), a pawl two (11) is rotatably connected to the positioning pile two (1002), the end of the pawl two (11) is engaged with the corresponding tooth gap of the ratchet wheel (3), and a supporting spring two (12) is fixedly welded between the outer wall of the pawl two (11) and the inner wall of the baffle (1001). A mounting pipe cap (13) is sleeved on the top of the connecting pipe (8), an L-shaped connecting sheet (14) is fixedly welded to one side of the outer wall of the mounting pipe cap (13), an arc-shaped limiting groove (1401) is formed in the L-shaped connecting sheet (14), the connecting pile portion (502) is slidably connected in the arc-shaped limiting groove (1401), a threaded mounting section (1301), a sliding section (1302) and an anti-falling edge (1303) are arranged on the inner wall of the mounting pipe cap (13), the connecting pipe (8) extends into the mounting pipe cap (13) through the anti-falling edge (1303), the sleeving edge portion (9) is slidably connected in the sliding section (1302), a reset spring (15) is sleeved on the connecting pipe (8) between the sleeving edge portion (9) and the anti-falling edge (1303), and a sealing ring one (16) is fixedly installed on the inner wall of the anti-falling edge (1303) at the connecting position of the anti-falling edge (1303) and the connecting pipe (8).

2. The pulse bag filter for rice processing according to claim 1, characterized in that: A plurality of grooves (901) are formed in the sleeving edge portion (9), a plurality of longitudinal limiting edges are fixedly connected to the inner wall of the sliding section (1302) at positions corresponding to the grooves (901), and the grooves (901) are slidably connected on the longitudinal limiting edges at corresponding positions.

3. The pulse bag filter for rice processing according to claim 1, characterized in that: The connecting pipe (8) at the bottom of the seat plate (10) is sleeved with a sealing ring two (17) and a bearing (18), the outer wall of the sealing ring two (17) is sleeved at the opening at the top end of the spray pipe body (2), the bearing (18) comprises an outer ring (1801) and an inner ring (1802), the inner ring (1802) is sleeved on the outer wall of the bottom end of the connecting pipe (8), and the inner ring (1802) and the outer wall of the bottom end of the connecting pipe (8) are fixedly installed by screws, the outer ring (1801) is sleeved on the inner wall of the spray pipe body (2), and the outer ring (1801) and the inner wall of the spray pipe body (2) are fixedly installed by screws.

4. The pulse bag filter for rice processing according to claim 1, characterized in that: The dust collector box (19) is fixedly installed with a partition plate (1901), a plurality of mounting holes (1902) are equidistantly formed in the partition plate (1901), a dust removal cloth bag (1903) is fixedly installed in each mounting hole (1902) through a cloth bag cage, and a plurality of spray pipe mechanisms (1) are sleeved in the dust removal cloth bag (1903) through the mounting holes (1902) at corresponding positions.

5. The pulse bag filter for rice processing according to claim 1, characterized in that: The outer wall of the dust collector box (19) is fixedly installed with a compressed gas tank (20) through a support, a gas supply pipe (22) is fixedly installed on the top of the compressed gas tank (20) through a plurality of electromagnetic valves (21), a plurality of the gas supply pipes (22) penetrate into the dust collector box (19), a plurality of threaded joints (2201) are fixedly installed on the bottom of the gas supply pipe (22), and the threaded installation section (1301) on the spray pipe mechanism (1) is fixedly installed with the threaded joint (2201) at the corresponding position.

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