A sintered plate dust collector with a purging function

Abstract

The present invention relates to the field of dust removal equipment, in particular to a sintered plate dust collector with a purging function, which includes a box body and a sintered plate inside the box body. The cross-section of the side wall of the sintered plate is wavy, and a housing is hermetically arranged at the top of the sintered plate. A purging mechanism is arranged between the housing and the sintered plate; the purging mechanism includes round covers arranged at both ends of the housing, and a toothed ring is arranged on one side of the inside of the housing where the round cover is located. The toothed ring is meshed with a gear. A pair of reciprocating lead screws connected coaxially are arranged between the two round covers. The sleeve of this device can either perform up-and-down purging alone, or reciprocally move and purge along the inside of the wavy shape of the sintered plate alone, or the two can be combined to perform full-coverage purging of the inside of the sintered plate. Through the high-pressure purging of the local area through the spray nozzle, the problem of local blockage that cannot be cleaned by traditional overall backwashing can be solved, and the structure is simple and the cost is low.

Description

Technical Field

[0001] The present invention relates to the field of dust removal equipment, in particular to a sintered plate dust collector with a purging function. Background Art

[0002] After the sintered plate dust collector works for a period of time, it needs to clean the sintered plate through back blowing. However, the sintered plate often has a large filtration area, and the blockage conditions in different parts are also different. Usually, most of the dust can be removed by the first back blowing, but the effect of the second back blowing on the remaining local blockage becomes worse. This is because the first back blowing makes most of the sintered plate unblocked, resulting in the rapid release of the back blowing pressure through the unblocked part during the second back blowing. Therefore, it is difficult to generate a high enough pressure difference to clean the local blockage. To solve the above problems, a sintered plate dust collector with a purging function that can perform local high-pressure purging and dust removal is proposed. Summary of the Invention

[0003] In view of the problem that the back blowing and dust removal of the sintered plate dust collector in the above or the prior art cannot achieve local cleaning, the present invention is proposed.

[0004] Therefore, the purpose of the present invention is to provide a sintered plate dust collector with a purging function.

[0005] To solve the above technical problems, the present invention provides the following technical solution: A sintered plate dust collector with a purging function, including a box body and a sintered plate inside the box body. The cross-section of the side wall of the sintered plate is wavy, and a housing is hermetically arranged at the top of the sintered plate. A purging mechanism is arranged between the housing and the sintered plate; the purging mechanism includes round covers arranged at both ends of the housing, and a toothed ring is arranged on one side of the round cover inside the housing. The toothed ring is meshed with a gear. Two motors and air connectors are respectively connected to the two round covers. A pair of coaxial reciprocating lead screws is arranged between the two gears, and each reciprocating lead screw is matched with a slider. An H-shaped air pipe is connected between the two sliders. One end of the horizontal pipe of the H-shaped air pipe is closed, and the other end of the H-shaped air pipe is hermetically connected to a hose. The other end of the hose is connected to the air connector. The two vertical pipes of the H-shaped air pipe are both slidably sleeved with sleeves. The bottom end of the sleeve is closed, and spray ports are arranged on the peripheral walls of the top end and the bottom end of the sleeve.

[0006] As a preferred solution of the sintered plate dust collector with a purging function of the present invention, wherein: the inner diameter of the sleeve is larger than the outer diameter of the vertical pipe of the H-shaped air pipe, and the top opening of the sleeve is narrowed and slidably sleeved with the vertical pipe of the H-shaped air pipe. The spray ports are flat and are annularly arranged around the sleeve.

[0007] As a preferred embodiment of the sintered plate dust collector with a purging function according to the present invention, the following is provided: A circular ring is axially arranged along the inner bottom end of the sleeve, and the outer diameter of the circular ring is equal to the outer diameter of the vertical pipe of the H-shaped air pipe. A tension spring is sleeved between the circular ring and the vertical pipe of the H-shaped air pipe, and the top end of the tension spring is connected to the top end of the vertical pipe of the H-shaped air pipe, and the bottom end of the tension spring is connected to the bottom end of the sleeve.

[0008] As a preferred embodiment of the sintered plate dust collector with a purging function according to the present invention, the following is provided: The reciprocating lead screw is fixedly connected to the gear, and an L-shaped adapter is rotatably sleeved at one end of the reciprocating lead screw near the motor. One end of the adapter is perpendicular to the reciprocating lead screw, and the other end of the adapter is coaxially connected to the output shaft of the motor.

[0009] As a preferred embodiment of the sintered plate dust collector with a purging function according to the present invention, the following is provided: A roller is rotatably sleeved on the peripheral wall of the sleeve, and the diameter of the roller is smaller than the gap width inside the sintered plate.

[0010] As a preferred embodiment of the sintered plate dust collector with a purging function according to the present invention, the following is provided: The distance between the two sleeves is close to half of the width of the sintered plate, and the stroke length of a single reciprocating lead screw is close to half of the width of the sintered plate.

[0011] As a preferred embodiment of the sintered plate dust collector with a purging function according to the present invention, the following is provided: The distance between the spray nozzles at both ends of the sleeve is close to half of the height of the sintered plate, and the maximum overlapping length between the sleeve and the H-shaped air pipe is greater than half of the height of the sintered plate.

[0012] As a preferred embodiment of the sintered plate dust collector with a purging function according to the present invention, the following is provided: The reciprocating lead screw is parallel to the horizontal pipe of the H-shaped air pipe and the output shaft of the motor.

[0013] As a preferred embodiment of the sintered plate dust collector with a purging function according to the present invention, the following is provided: An air outlet is provided at the top end of the housing, and the air outlets are equally spaced with respect to the housing, and sealing rings are sleeved on all the air outlets.

[0014] As a preferred embodiment of the sintered plate dust collector with a purging function according to the present invention, the following is provided: A partition is horizontally arranged at the top inside the box body, and the housing is fixedly connected to the partition. The partition is provided with an opening at the air outlet, and the sealing ring is press-fitted with the partition.

[0015] The beneficial effects of the sintered plate dust collector with a purging function according to the present invention are as follows: The sleeve of the device can not only perform up-and-down purging alone, but also reciprocally move and purge along the wavy interior of the sintered plate alone, or the two can be combined to achieve full coverage purging of the interior of the sintered plate. Through the high-pressure purging of the local area by the spray nozzles, the problem of local blockage that cannot be cleaned by traditional overall backwashing can be solved, and the structure is simple and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of a sintered plate dust collector with a purging function.

[0018] Figure 2 It is a sectional view of the structure of a sintered plate dust collector with a purging function.

[0019] Figure 3 It is a schematic diagram of the structure of the sintered plate of a sintered plate dust collector with a purging function.

[0020] Figure 4 It is a sectional view of the structure of the housing of a sintered plate dust collector with a purging function.

[0021] Figure 5 It is a schematic diagram of the structure of the purging mechanism of a sintered plate dust collector with a purging function.

[0022] Figure 6 For the sintered plate dust collector with a purging function Figure 4 Enlarged view of the structure of A therein.

[0023] Figure 7 For the sintered plate dust collector with a purging function Figure 4 Enlarged view of the structure of B therein.

[0024] Figure 8 For the sintered plate dust collector with a purging function Figure 4 Enlarged view of the structure of C therein.

[0025] Figure 9 For the sintered plate dust collector with a purging function Figure 4 Enlarged view of the structure of D therein.

[0026] Figure 10 It is a sectional view of the assembly structure of the H-shaped air pipe and the sleeve of a sintered plate dust collector with a purging function.

[0027] Figure 11 For the sintered plate dust collector with a purging function Figure 10 Enlarged view of the structure of E therein.

[0028] Figure 12 For the sintered plate dust collector with a purging function Figure 10 Enlarged view of the structure of F therein.

[0029] In the figure: 100, the box body; 101, the sintered plate; 102, the housing; 103, the partition; 102a, the air outlet; 102b, the sealing ring; 200, the purging mechanism; 201, the round cover; 202, the toothed ring; 203, the gear; 204, the motor; 205, the air joint; 206, the reciprocating lead screw; 207, the slider; 208, the H-shaped air pipe; 209, the hose; 210, the sleeve; 211, the tension spring; 212, the adapter; 213, the roller; 210a, the nozzle; 210b, the circular ring. Specific embodiments

[0030] In order to make the above objects, features, and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings of the specification.

[0031] Example 1, referring to Figures 1 to 12 , which is the first embodiment of the present invention. This embodiment provides a sintered plate 101 dust collector with a purging function, which can achieve the effect of locally high-pressure purging at any position of the sintered plate 101. It includes a box body 100 and a sintered plate 101 inside the box body 100. The cross-section of the side wall of the sintered plate 101 is wavy, and a housing 102 is hermetically arranged at the top end of the sintered plate 101. A purging mechanism 200 is arranged between the housing 102 and the sintered plate 101; the purging mechanism 200 includes round covers 201 arranged at both ends of the housing 102, and a toothed ring 202 is arranged on one side of the inside of the housing 102 where the round cover 201 is located. The toothed ring 202 is meshed with a gear 203. Two round covers 201 are respectively connected with a motor 204 and an air joint 205. A pair of coaxial-connected reciprocating lead screws 206 are arranged between the two gears 203, and each reciprocating lead screw 206 is matched and connected with a slider 207. An H-shaped air pipe 208 is connected between the two sliders 207, and one end of the horizontal pipe of the H-shaped air pipe 208 is closed. The other end of the H-shaped air pipe 208 is hermetically connected with a hose 209. The other end of the hose 209 is connected with the air joint 205, and both vertical pipes of the H-shaped air pipe 208 are slidably sleeved with sleeves 210. The bottom end of the sleeve 210 is closed, and nozzles 210a are arranged on the peripheral walls of the top end and the bottom end of the sleeve 210.

[0032] Specifically, the reciprocating lead screw 206 is fixedly connected to the gear 203. An L-shaped adapter 212 is rotatably sleeved at one end of the reciprocating lead screw 206 near the motor 204. One end of the adapter 212 is perpendicular to the reciprocating lead screw 206, and the other end of the adapter 212 is coaxially connected to the output shaft of the motor 204. The distance between the two sleeves 210 is close to half of the width of the sintering plate 101, and the stroke length of a single reciprocating lead screw 206 is close to half of the width of the sintering plate 101. The distance between the nozzles 210a at both ends of the sleeve 210 is close to half of the height of the sintering plate 101, and the maximum overlapping length between the sleeve 210 and the H-shaped air pipe 208 is greater than half of the height of the sintering plate 101. The reciprocating lead screw 206 is parallel to the horizontal pipe of the H-shaped air pipe 208 and the output shaft of the motor 204. An air outlet 102a is provided at the top of the housing 102, and the air outlets 102a are equally spaced with respect to the housing 102. Each air outlet 102a is sleeved with a sealing ring 102b. A partition 103 is horizontally arranged at the top inside the box body 100, and the housing 102 is fixedly connected to the partition 103. The partition 103 is provided with an opening at the position of the air outlet 102a, and the sealing ring 102b is press-connected to the partition 103.

[0033] Combined with the prior art, the technical principle and advantages of the device are further described: In the prior art, the sintering plate 101 can be cleaned and reused. However, it is very inconvenient to disassemble and install the sintering plate 101 inside the device. Generally, it is only disassembled and cleaned when the back blowing cannot effectively clean the sintering plate 101 and the sintering plate 101 is blocked and it is difficult to maintain the production flow. Back blowing cleaning means releasing a large flow of compressed air from the row of air outlets of the sintering plate 101 inward to blow away the dust attached to the outer wall of the sintering plate 101. Obviously, the effect of back blowing has great limitations and it is difficult to achieve an effective cleaning effect for serious local blockages.

[0034] The present invention mainly provides a purging mechanism 200 that can move circularly inside the common corrugated sintering plate 101 to purge and remove dust from a local area of the sintering plate 101. One of the core parts of this mechanism is the H-shaped air pipe 208 (the H-shaped air pipe 208 is made by welding and assembling hard metal pipes. For the convenience of description, the two longer parts of the H-shaped air pipe 208 are described as vertical pipes, and the horizontally placed part in the middle is described as a horizontal pipe). The purging mechanism 200 has a total of four purging nozzles 210a, which are respectively arranged at the top and bottom of the two sleeves 210. Dust is blown from the sintering plate 101 locally through the four nozzles 210a. To achieve the circular coverage purging of the inside of the sintering plate 101 by the four nozzles 210a, not only does the sleeve 210 need to move up and down, but it also needs to be able to move along the corrugated path inside the sintering plate 101.

[0035] Vertical movement of the sleeve 210: The sleeve 210 is sleeved on the vertical pipe part of the H-shaped air pipe 208 and is connected internally by a tension spring 211. Compressed air reaches the sleeve 210 through the H-shaped air pipe 208 and is ejected from the nozzle 210a. At the same time, since the pressure between the sleeve 210 and the H-shaped air pipe 208 is greater than the pressure inside the sintered plate 101, the sleeve 210 moves downward against the tension of the tension spring 211. During this process, the nozzle 210a at the top of the sleeve 210 purges the upper half of the sintered plate 101, and the nozzle 210a at the bottom of the sleeve 210 purges the lower half of the sintered plate 101.

[0036] Horizontal movement of the wavy path of the sleeve 210: For the sleeve 210 to pass through the wavy path, first, the sleeve 210 needs to continuously move back and forth left and right. Refer to Figure 6 , the motor 204 of the device drives the reciprocating lead screw 206 to perform a circular motion through an L-shaped connecting piece. The slider 207 is slidably connected to the reciprocating lead screw 206 and the downward gravitational force of the H-shaped air pipe 208 connected to the slider 207 causes the H-shaped air pipe 208 and the sleeve 210 to move left and right reciprocally around the axis of the motor 204 while maintaining a downward posture during the revolution of the reciprocating lead screw 206 around the axis of the motor 204. For each rotation of the axis of the motor 204, the sleeve 210 moves once to each side of the sintered plate 101. At the same time, the gear 203 at the end of the reciprocating lead screw 206 also rolls inside the toothed ring 202, thereby driving the reciprocating lead screw 206 to rotate. The rotating reciprocating lead screw 206 also drives the slider 207 to move along its axial direction. Through the superposition of the left and right (relative to both sides of the sintered plate 101) displacement of the sleeve 210 and the axial displacement along the axis of the motor 204, the H-shaped air pipe 208 and the sleeve 210 can move smoothly inside the sintered plate 101 along the wavy path.

[0037] The wavy movement of the sleeve 210 only depends on whether the motor 204 rotates. When the motor 204 rotates, while the sleeve 210 moves left and right relative to the sintered plate 101, it also causes the sleeve 210 to move up and down slightly. When the motor 204 stops, the sleeve 210 can also perform independent up and down movement and purging through compressed air. The source of the compressed air for purging is provided through the hose 209 and the connector connecting the H-shaped air pipe 208.

[0038] In summary, the sleeve 210 of this device can not only perform up and down purging alone, but also move back and forth along the wavy inside of the sintered plate 101 for purging alone, or the two can be combined to perform full-coverage purging inside the sintered plate 101. Through the high-pressure purging of the local area by the nozzle 210a, it can solve the local blockage problem that cannot be cleaned by traditional overall backwashing, and has a simple structure and low cost.

[0039] Example 2, refer to Figures 4 to 12, which is the second embodiment of the present invention. Different from the previous embodiment, this embodiment provides a pipeline layout of the sintered plate 101 dust collector with a purging function, so that the purging range of the purging mechanism 200 can cover the entire sintered plate 101. It includes that the inner diameter of the sleeve 210 is larger than the outer diameter of the vertical pipe of the H-shaped air pipe 208, and the top opening of the sleeve 210 is narrowed and slidably sleeved with the vertical pipe of the H-shaped air pipe 208. The nozzle 210a is flat and is annularly arrayed around the sleeve 210. A ring 210b is axially arranged along the inner edge of the bottom end of the sleeve 210, and the outer diameter of the ring 210b is equal to the outer diameter of the vertical pipe of the H-shaped air pipe 208. A tension spring 211 is sleeved between the ring 210b and the vertical pipe of the H-shaped air pipe 208, and the top end of the tension spring 211 is connected to the top end of the vertical pipe of the H-shaped air pipe 208, and the bottom end of the tension spring 211 is connected to the bottom end of the sleeve 210.

[0040] Reference Figure 11 and Figure 12 , the flow cross-sections of the compressed air reaching the nozzles 210a at both ends of the sleeve 210 are not the same. Especially when the sleeve 210 and the H-shaped air pipe 208 are sleeved and overlapped more, the compressed air leading to the top nozzle 210a of the sleeve 210 has to pass through the gap between the inner wall of the sleeve 210 and the outer wall of the vertical pipe of the H-shaped air pipe 208. Therefore, the flow area will be relatively small, affecting the balance of the jet pressure of the nozzles 210a at both ends of the sleeve 210. Therefore, by setting a ring 210b with the same inner and outer diameter dimensions as the H-shaped vertical pipe at the bottom of the sleeve 210, the flow area of the compressed air reaching the bottom nozzle 210a of the sleeve 210 is reduced to balance the purging effects of the two nozzles 210a.

[0041] All other structures are the same as those in Embodiment 1.

[0042] In summary, the two groups of nozzles 210a of the sleeve 210 of this device adjust the internal flow cross-sectional area to make the purging effects of the two groups of nozzles 210a as close as possible.

[0043] Embodiment 3, referring to Figure 4 , Figure 5 and Figure 9 , which is the third embodiment of the present invention. Different from the previous embodiment, this embodiment provides a roller 213 for the sintered plate 101 dust collector with a purging function, so that the sleeve 210 maintains an almost vertical posture in the sintered plate 101. It includes that a roller 213 is rotatably sleeved on the peripheral wall of the sleeve 210, and the diameter of the roller 213 is smaller than the gap width inside the sintered plate 101.

[0044] The prerequisite for the reciprocating lead screw 206 to rotate and drive the sleeve 210 to move axially is that, with the slider 207 as a reference, the slider 207 does not rotate. Only when the reciprocating lead screw 206 rotates can it effectively drive the slider 207 to move axially through the helical groove on the reciprocating lead screw 206. This device is mainly achieved through the metal air pipe and the downward gravity of the sleeve 210. However, this is still not stable enough. The sleeve 210 will swing due to the friction between the slider 207 and the reciprocating lead screw 206. Coupled with the instability caused by the purging air flow of the nozzle 210a, it will further exacerbate the swing of the sleeve 210. Therefore, it is necessary to add rollers 213 to the sleeve 210.

[0045] First of all, the swing of the sleeve 210 is restricted by the reciprocating lead screw 206 and can only occur on both sides of the sintering plate 101 along the axis of the reciprocating lead screw 206. Secondly, the diameter of the roller 213 should be slightly smaller than the gap width inside the sintering plate 101 to avoid the roller 213 being stuck inside the sintering plate 101. This gap allows and only allows the sleeve 210 to have a small swing amplitude that does not affect its normal operation, and makes only one side of the roller 213 contact the inner wall of the sintering plate 101, so that the roller 213 can roll smoothly along the inner wall of the sintering plate 101.

[0046] All other structures are the same as those in Embodiment 2.

[0047] In summary, through the design of the roller 213, the stability of this device has been greatly improved.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A sintered plate (101) dust collector with a purge function, comprising a housing (100) and a sintered plate (101) in the housing (100), characterized in that: The cross section of the side wall of the sintering plate (101) is wavy, and a shell (102) is provided at the top end of the sintering plate (101) in a sealed manner, and a purge mechanism (200) is provided between the shell (102) and the sintering plate (101); The purge mechanism (200) comprises round covers (201) arranged at both ends of the housing (102), and a toothed ring (202) is arranged on one side of the round cover (201) located inside the housing (102), the toothed ring (202) is meshingly connected with a gear (203), the two round covers (201) are respectively connected with a motor (204) and an air joint (205), a pair of coaxially connected reciprocating screws (206) are arranged between the two gears (203), and each of the reciprocating screws (206) is matched and connected with a slider (2 07), an H-shaped air pipe (208) is connected between the two sliders (207), and one end of the horizontal pipe of the H-shaped air pipe (208) is closed, and the other end of the H-shaped air pipe (208) is sealed and connected to a hose (209), and the other end of the hose (209) is connected to the air joint (205), and the two vertical pipes of the H-shaped air pipe (208) are both slidably sleeved with a sleeve (210), the bottom end of the sleeve (210) is closed, and the top peripheral wall and the bottom peripheral wall of the sleeve (210) are both provided with nozzles (210a); A circular ring (210b) is arranged in the axial direction of the bottom end of the sleeve (210), and the outer diameter of the circular ring (210b) is equal to the outer diameter of the vertical tube of the H-shaped air pipe (208); a tension spring (211) is sleeved between the circular ring (210b) and the vertical tube of the H-shaped air pipe (208), and the top end of the tension spring (211) is connected to the top end of the vertical tube of the H-shaped air pipe (208), and the bottom end of the tension spring (211) is connected to the bottom end of the sleeve (210); The reciprocating screw rod (206) is fixedly connected to the gear (203), and the reciprocating screw rod (206) is located at one end of the motor (204) and is rotatably sleeved with an L-shaped adapter (212), one end of the adapter (212) and the reciprocating screw rod (206) are perpendicular to each other, and the other end of the adapter (212) is coaxially connected to the output shaft of the motor (204).

2. The sintered plate (101) dust collector with a purge function according to claim 1, characterized in that: The inner diameter of the sleeve (210) is larger than the outer diameter of the vertical tube of the H-shaped air pipe (208), and the top opening of the sleeve (210) is narrowed to be slidably sleeved with the vertical tube of the H-shaped air pipe (208), and the nozzle (210a) is flat, and the nozzles (210a) are distributed in a ring array with respect to the sleeve (210).

3. The sintered plate (101) dust collector with a purge function according to claim 2, characterized in that: A roller (213) is rotatably sleeved on the peripheral wall of the sleeve (210), and the diameter of the roller (213) is smaller than the width of the gap inside the sintering plate (101).

4. The sintered plate (101) dust collector with a purge function according to claim 3, characterized in that: The distance between the two sleeves (210) is close to half the width of the sintering plate (101), and the stroke length of a single reciprocating screw rod (206) is close to half the width of the sintering plate (101).

5. The sintered plate (101) dust collector with a purge function according to claim 4, characterized in that: The distance between the nozzles (210a) at both ends of the sleeve (210) is close to half the height of the sintering plate (101), and the maximum overlapping length of the sleeve (210) and the H-shaped air pipe (208) is greater than half the height of the sintering plate (101).

6. The sintered plate (101) dust collector with a purge function according to claim 5, characterized in that: The reciprocating screw rod (206), the H-shaped air pipe (208) cross pipe, and the output shaft of the motor (204) are parallel to each other.

7. The sintered plate (101) dust collector with a purge function according to claim 6, characterized in that: The top of the shell (102) is provided with air outlets (102a), and the air outlets (102a) are distributed at equal intervals with respect to the shell (102), and the air outlets (102a) are all sleeved with sealing rings (102b).

8. The sintered plate (101) dust collector with a purge function according to claim 7, characterized in that: A partition (103) is horizontally arranged at the top of the box body (100), and the shell (102) is fixedly connected to the partition (103); the partition (103) has a hole at the air outlet (102a), and the sealing ring (102b) is crimped to the partition (103).

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