Reciprocating impact type cross filter cartridge dust removal device

Abstract

The present application relates to dust removal technical field, disclose a kind of reciprocating collision type cross filter filter cartridge dust removal device, including shell and flower board, flower board divides into air inlet chamber, filter chamber and settling chamber in shell, and filter chamber is the space formed by the inside of cross filter filter cartridge of horizontal arrangement;Cross filter filter cartridge outside is external space;Filter chamber is externally arranged ash removal system;The left end of cross filter filter cartridge is communicated with air inlet chamber, right end is communicated with settling chamber;External space is communicated with settling chamber;Ash removal system includes the spray pipe of the periphery of cross filter filter cartridge and external space and the cross filter baffle of being arranged in external space and being reciprocated left and right;Cross filter baffle includes baffle base and baffle side wall, and reciprocating movement is matched with pulse spray airflow, realizes ash removal to entire cross filter filter cartridge, provides a new idea of ash removal to internal filter type filter cartridge or cross filter filter cartridge;And wherein cross filter baffle and stopper design, can carry out regional ash removal to cross filter filter cartridge.

Description

Technical Field

[0001] This invention relates to the field of dust removal technology, and in particular to a reciprocating impact type cross filter cartridge dust removal device. Background Technology

[0002] Dust is easily generated in people's daily lives and production, and it can have certain impacts on human health and the social environment. Dust control in environmental protection is receiving increasing attention and strengthening from all parties. Against the backdrop of rapid development in modern society, people are increasingly aware of the harmfulness of dust, making the development of efficient dust removal equipment particularly important.

[0003] Dust removal equipment, representing air pollution control equipment, occupies a crucial position among environmental protection products and plays a significant role in air pollution control. Traditional bag or cartridge dust collection systems are generally the primary methods, but they cause considerable damage to the filter cartridges when handling large volumes of high-concentration dust. Currently, dust collection systems developed based on cross-flow filtration are available on the market, which can reduce the damage to the filter cartridges caused by dust-laden airflow.

[0004] In the prior art, patent CN112473309A discloses a composite dust collection system with cross-flow filtration. Through cross-flow filtration technology, the load on the filter cartridge is effectively reduced. However, the dust removal method cannot effectively remove dust from the cross-flow filter cartridge, and the individual components are relatively complex with many parts. Summary of the Invention

[0005] In view of the shortcomings of existing technologies, the present invention provides a reciprocating impact type staggered filter cartridge dust removal device. Activating a pulse valve at one end allows high-pressure gas to impact the staggered filter baffle, causing it to move. A limit switch pops out under the action of the high-pressure airflow, stopping the staggered filter baffle at a specific position, thus enabling the jet airflow to clean the staggered filter cartridge in sections. When the staggered filter baffle moves to one end, the pulse valve at the other end can be activated to move it back, achieving alternating jet cleaning by the nozzles at both ends, thereby achieving the reciprocating motion of the staggered filter baffle.

[0006] The technical solution of the present invention is: a reciprocating collision type staggered filter cartridge dust removal device, comprising a shell, a fan, an air tank, staggered filter baffles, and a limiter;

[0007] The air intake chamber, filter chamber, external space, and settling chamber are arranged sequentially according to the direction of the main airflow.

[0008] The air intake chamber is a space formed by the inner wall of the outer shell and the left side of the perforated plate. The air intake chamber is connected to the air intake pipe, and a fan is connected to the air intake pipe.

[0009] The filter chamber is formed by the space inside a horizontally arranged staggered filter cylinder, which is a cylinder with openings at both the left and right ends; the left end of the staggered filter cylinder is connected to the air inlet chamber and the right end is connected to the settling chamber.

[0010] The settling chamber is a space formed by the inner wall of the shell and the right part of the flower plate; the settling chamber is provided with an air outlet pipe; the cross filter filter cartridge is installed between two flower plates;

[0011] The lower right part of the shell is provided with an opening, and the opening is connected with a dust discharging valve;

[0012] The cross filter baffle is installed on the positioning rod which is transversely arranged on the external space, and the cross filter baffle can move left and right along the positioning rod; the cross filter baffle is composed of a baffle base and a baffle side wall, the baffle base is provided with a plurality of openings, and the baffle side wall is vertically arranged on the surface of the baffle base and perpendicular to the baffle base;

[0013] A plurality of nozzles are arranged in the external space, the nozzles are arranged around the cross filter filter cartridge, and the nozzle openings are directed to the baffle base of the cross filter baffle; the nozzles are connected to the blowing pipe through the flower plate, the nozzles are connected to the gas pocket through the blowing pipe, and the left and right parts of the blowing pipe are respectively provided with pulse valves;

[0014] A guide plate is arranged above the blowing pipe, the guide plate is in the shape of a circular truncated cone, and the guide plate is arranged at the position where the air inlet chamber and the filter chamber are connected;

[0015] The positioner is installed on the blowing pipe, and the left and right parts of the blowing pipe on which the positioner is installed are respectively provided with gas one-way valves;

[0016] Further, the flower plate is provided with a plurality of large openings and small openings in the middle, the four small openings are arranged around the large opening, the cross filter filter cartridge is installed at the large opening, and the nozzle is inserted into the small opening;

[0017] Further, a plurality of large openings are arranged in the middle of the cross filter baffle, each large opening corresponds to four baffle side walls which are perpendicular to the baffle base, the large opening is sleeved on the cross filter filter cartridge, the baffle side wall is located between the two large openings, a small opening is arranged at the corner, and the baffle side wall is a column body which is stretched from a figure composed of two arcs;

[0018] Further, each cross filter filter cartridge is provided with four corresponding nozzles at the four corners;

[0019] Further, the positioner is provided with a spring connected to a sliding block, the sliding block can slide under the action of high-pressure gas flow, the sliding distance of the sliding block is limited by a sliding block baffle, and the spring is provided with a small hole on the positioner shell.

[0020] Further, the positioner is provided with a small ball with a groove which can rotate around an axis and is arranged at the air inlet, the small ball is provided with a channel through which the gas flow passes, the groove of the small ball is clamped at the edge of the inner wall of the positioner shell, and the soft rubber, after the small ball is hit by the high-pressure gas flow and the channel in the small ball, the gas is sent into the positioner, and the small ball rotates, and the groove is clamped at the soft rubber again after rotation.

[0021] Further, the channel is an angular groove, that is, the side and lower two sides of the groove are angular to each other, when the ball rotates, the direction of the side groove of the channel changes left and right.

[0022] Further, when the airflow blows into the channel, most of the airflow passes through the channel in the ball, and a small part of the airflow passes from above the ball, the airflow from above the ball is not enough to start the next position limiter, and the ball rotates and changes into another form after being hit by the airflow, at this time, most of the airflow blown from the original direction passes from above the ball and enters the next position limiter.

[0023] Beneficial effects: (1) reciprocating impact type baffle migration design. The migration of the positioning rod is used to realize the regional dust removal of the plurality of staggered filter cartridges. The high-pressure gas jet drives the migration of the staggered filter baffle, and under the action of the position limiter, the staggered filter baffle automatically reaches the next region and performs dust removal on the staggered filter cartridge in the next region. When the baffle moves to one end, the full-area dust removal of the staggered filter cartridge is realized, and the next dust removal process is reversed to run once, thereby realizing reciprocating dust removal.

[0024] (2) Staggered filter baffle design. The baffle side wall is added on the basis of the baffle base, so that the partial accumulation of the pulse jet airflow is realized, the pressure accumulation effect is achieved, and then the effective dust removal of the staggered filter cartridge in the region is realized. And the length of the baffle side wall can be changed to achieve the required regional range and pressure accumulation strength, so as to achieve the best dust removal effect.

[0025] (3) The staggered filter cartridge is exposed to the outside, and can be monitored in real time. Since the airflow in the cross-flow filtration directly enters the external space, the real-time state of each filter cartridge can be observed, and efficient control can be performed.

[0026] (4) The design of the position limiter. The position limiter can make the staggered filter baffle stop at a specific position, so as to control the dust removal area, thereby performing regional dust removal on the staggered filter cartridge, and realizing hierarchical control. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0028] Figure 2 It is a schematic diagram of the opening side of the flower plate of the present application.

[0029] Figure 3 It is a schematic diagram of the side view structure of the staggered filter baffle of the present application.

[0030] Figure 4 、 Figure 5 It is a schematic diagram of the structure of the position limiter in different states of the present application.

[0031] Fig. 1: 1. staggered filter baffle, 101. baffle base, 102. baffle side wall, 2. position limiter, 201. ball, 202. position limiter shell, 203. small hole, 204. sliding block, 205. sliding block baffle, 206. channel, 207. soft glue, 208. spring, 3. gas one-way valve, 4. shell, 5. blowing pipe, 6. settling chamber, 7. air outlet pipe, 8. ash discharge valve, 9. pulse valve, 10. gas pocket, 11. external space, 12. nozzle, 13. staggered filter cartridge, 14. filter chamber, 15. deflector, 16. air inlet chamber, 17. fan, 18. air inlet pipe, 19. flower plate. DETAILED DESCRIPTION

[0032] The application is further described below:

[0033] Combination Figures 1-5 A reciprocating collision type staggered filter cartridge dust removal device, characterized by comprising a shell 4, a fan 17, a gas pocket 10, a staggered filter baffle 1, and a position limiter 2.

[0034] The air inlet chamber 16, the filter chamber 14, and the external space 11 are sequentially arranged according to the flow direction of the main airflow; and the flow direction of the dust during the dust removal process is the air inlet chamber 16, the filter chamber 14, and the settling chamber 6 in sequence.

[0035] The air inlet chamber 16 is a space formed by the inner wall of the shell 4 and the left part of the flower plate 19, the air inlet chamber 16 is connected with the air inlet pipe 18, and the fan 17 is connected to the air inlet pipe 18.

[0036] The filter chamber 14 is a space formed by the inside of the horizontally arranged staggered filter cartridge 13, and the staggered filter cartridge 13 is a left and right open cylinder surrounded by a curved filter layer; the left end of the staggered filter cartridge 13 is in communication with the air inlet chamber 16, and the right end is in communication with the settling chamber 6; in some preferred embodiments, multiple filter chambers 14 can be provided, i.e., multiple staggered filter cartridges 13 arranged in parallel in the up-down and front-back directions.

[0037] A deflector 15 is arranged at the position where the air inlet chamber 16 and the filter chamber 14 meet, and the deflector 15 is in the shape of a circular truncated cone, so that the airflow quickly and efficiently flows into the filter chamber 14.

[0038] The area outside the filter chamber 14 is the external space 11.

[0039] The settling chamber 6 is a space formed by the inner wall of the shell 4 and the right part of the flower plate 19; the settling chamber 6 is provided with an air outlet pipe 7; and the staggered filter cartridge 13 is installed between the two flower plates 19.

[0040] The lower right part of the shell 4 is provided with an opening, the opening is connected with an ash discharge valve 8, and the ash discharge valve 8 is arranged in the lower section of the settling chamber 6.

[0041] In specific implementation, dust-laden gas enters the interior of the filter cartridge 13 from the inlet chamber 16 under the action of the fan 17. Large dust particles are intercepted by the filter cartridge 13 and then enter the settling chamber 6 for sedimentation and collection under the action of airflow. To avoid dust particles accumulating in the filter cartridge 13 and reducing its filtration efficiency, the device of the present invention is equipped with a dust removal system, including a blowpipe 5 that surrounds the filter cartridge 13 and the outer space 11, and a filter baffle 1 that can move left and right and is set in the outer space 11.

[0042] An air tank 10 and two sets of pulse valves 9 are installed on the blow pipe 5. The air tank 10 provides a high-pressure air source for the blow, and the pulse valves 9 are installed on both sides of the air tank 10. They can instantly open and close the high-pressure air source to generate pulses. Several nozzles 12 with openings facing the outer wall of the filter cylinder 13 are installed on the vertical pipes parallel to each other on the left and right sides of the blow pipe 5. Specifically, the nozzles 12 pass through the perforated plate 19 and are connected to the blow pipe 5. The nozzles 12 are connected to the air tank 10 through the blow pipe 5. The compressed gas in the air tank 10 is ejected from the nozzles 12 to impact the filter cylinder 13. The filter baffle 1 is installed on the positioning rod, which is horizontally set on the external space 11 (not marked in the figure). The filter baffle 1 can move left and right along the positioning rod. The filter baffle 1 is composed of a baffle base 101 and a baffle sidewall 102. The baffle base 101 has several openings, and the baffle sidewall 102 stands on the surface of the baffle base 101 and is perpendicular to it.

[0043] like Figure 2 As shown, the flower plate 19 has several large openings and small openings in the middle, with four small openings surrounding the large openings. A filter cylinder 13 is installed at the large opening, and a nozzle 12 is inserted at the small opening.

[0044] like Figure 3 As shown, the staggered filter baffle 1 has several large openings in the middle, and each large opening corresponds to four baffle sidewalls 102 perpendicular to the baffle base 101. Some of the baffle sidewalls 102 are located between two large openings. Small openings are provided at the corners of the baffle sidewalls 102 for the positioning rod to pass through. The large openings are fitted over the staggered filter cylinder 13. In specific implementations, the large openings allow the staggered filter baffle 1 to be inserted along the outside of the staggered filter cylinder 13. The baffle sidewall 102 is a column formed by stretching a shape composed of two minor arcs. The nozzles 12 are arranged around the staggered filter cylinder 13. In some preferred embodiments, there are four corresponding nozzles 12 at the four corners of each staggered filter cylinder 13. The openings of the nozzles 12 face the baffle base 101 of the staggered filter baffle 1.

[0045] The compressed gas is sprayed from the nozzle 12 and hits the staggered filter baffle 1, and the gas will spread to all directions and impact the staggered filter cylinder 13 from outside to inside, so as to strip the dust from the inner wall of the staggered filter cylinder 13. The dust on the inner wall of the staggered filter cylinder 13 is stripped by the blowing pressure and moves forward along with the airflow in the cylinder, and finally reaches the settling chamber 6 and is settled to the dust discharging valve 8 due to gravity. The static pressure accumulation area formed by the airflow impact during the blowing is much larger than the contact area, and the reverse accumulation of the static pressure not only strips the dust on a small area of the contact surface between the staggered filter baffle 1 and the staggered filter cylinder 13, but also covers a larger area of the dust stripping.

[0046] In order to control the dust removal area and perform regional dust removal on the staggered filter cylinder 13, the device is provided with the position limiter 2 which can stop the staggered filter baffle at a specific position. A plurality of groups of symmetrical position limiters 2 are arranged on the horizontal pipe of the blowing pipe 5 in parallel, and the position limiters 2 at the upper and lower positions limit the top end and the end of the staggered filter baffle 1 respectively.

[0047] The left and right parts of the blowing pipe 5 on which the position limiter 2 is installed are respectively provided with a gas one-way valve 3.

[0048] As shown in Figure 4 and Figure 5 , the position limiter 2 comprises a position limiter shell 202, a sliding block 204 and a small ball 201 which are installed inside the position limiter shell 202, the sliding block 204 is connected with the inside of the position limiter shell 202 through a spring 208, the sliding block 204 can slide under the action of the high-pressure airflow, the sliding distance of the sliding block 204 is limited by a sliding block baffle 205, and the spring 208 has a small hole 203 on the area corresponding to the position limiter shell 202; the upper end of the position limiter shell 202 is an air inlet, a small ball 201 with a groove is installed around the shaft at the air inlet, the small ball 201 has a channel 206 for the airflow to pass through, the channel 206 is an angular groove, the direction of the side groove of the channel 206 changes left and right when the small ball 201 rotates by itself, and the groove of the small ball 201 is clamped at the soft rubber 207 at the edge of the inner wall of the position limiter shell 202; after the small ball 201 is impacted by the high-pressure airflow, the small ball 201 sends the gas into the position limiter 2 while rotating by itself, so that the position of the channel 206 changes, and the groove is clamped at the soft rubber 207 again after rotation to be fixed again.

[0049] When the airflow blows into the channel 206, most of the airflow will pass through the channel 206 in the small ball 201, and a small part of the airflow passes from above the small ball 201, and the airflow from above the small ball 201 is not enough to start the next position limiter 2, and the small ball 201 changes into another form after rotating due to the impact of the airflow, at this time, most of the airflow blown from the original direction passes from above the small ball 201 and enters the next position limiter 2.

[0050] Workflow: When the filtering work is carried out, first, the fan 17 is started, under the positive pressure provided by the fan 17, the dust-containing airflow is blown into the inlet pipe 18 into the air inlet chamber 16, under the action of the flow guide plate 15, the dust-containing airflow is more evenly into each staggered filter cartridge 13, and then into the filter chamber 14.

[0051] In the filter chamber 14, due to the interception of the staggered filter cartridge 13, most of the dust adheres to the inner wall of the staggered filter cartridge 13, the clean airflow passes through the staggered filter cartridge 13 to reach the external space 11, and the remaining dust-containing gas passes through the entire filter chamber 14 to reach the settling chamber 6.

[0052] In the settling chamber 6, the dust falls to the lower part due to the action of gravity, and is finally collected by the ash discharge valve 8, and the remaining airflow is discharged through the air outlet pipe 7.

[0053] With the dust removal work, the dust on the staggered filter cartridge 13 will have a certain thickness, which will cause the filtering resistance to be too large, and the airflow cannot pass through the staggered filter cartridge 13, so the dust removal work needs to be carried out. The staggered filter baffle 1 is first located on the left side, the left pulse valve 9 is started to carry out the first pulse blowing dust removal, the compressed gas in the air pocket 10 comes to the nozzle 12 through the blowing pipe 5, the airflow sprayed from the nozzle 12 hits the baffle base 101 of the staggered filter baffle 1, the dynamic pressure energy of the airflow is converted into static pressure energy to clean the staggered filter cartridge 13 in the area where the staggered filter baffle 1 is located, and the airflow blows the baffle to the right once. Due to the existence of the gas check valve 3, the compressed gas sprayed from the left pulse valve 9 will not be sprayed from the right nozzle 12, the compressed gas simultaneously moves the slider 204 in the limit stop 2, the slider 204 limits the movement of the staggered filter baffle 1, so that the staggered filter baffle 1 stops at the set position. Under the action of the small hole 203 on the limit stop housing 202, the air pressure in the limit stop 2 is gradually reduced, and the spring 208 resets the slider 204, the channel 206 in the ball 201 in the limit stop 2 is impacted by the high-pressure airflow, and rotates to become another form. In the next blowing, most of the airflow will pass from above the ball 201 to the next limit stop 2, and then pulse blowing is carried out again, the baffle moves to the next limit stop 2, and so on, until the baffle reaches the other end. During this period, the dust on the inner surface of the staggered filter cartridge 13 reaches the settling chamber 6 with the dust-containing airflow, and the dust settles at the ash discharge valve 8, achieving dust removal of the entire staggered filter cartridge 13. When the next dust removal work is carried out, the right pulse valve 9 is started, the compressed gas moves the slider in the limit stop 2, the slider limits the movement of the staggered filter baffle 1, so that the staggered filter baffle 1 stops at the set position; after the blowing stops, the slider is reset under the action of the spring 208 in the limit stop 2. Then pulse blowing is carried out again, the baffle moves to the next limit stop 2, and the staggered filter baffle 1 is moved back to the original position to achieve the cycle dust removal.

Claims

1. A reciprocating impact-type staggered filter cartridge dust collector, characterized in that: The dust removal device includes a shell (4) and a tube sheet (19) placed inside the shell. The tube sheet (19) divides the interior of the shell (4) into an air inlet chamber (16), a filter chamber (14), and a settling chamber (6). The filter chamber (14) is the space formed inside a horizontally arranged staggered filter cylinder (13). The area outside the staggered filter cylinder (13) is the external space (11). According to the flow direction of the main airflow, the components are air inlet chamber (16), filter chamber (14), external space (11), and settling chamber (6). A dust removal system is provided outside the filter chamber (14). The air inlet chamber (16) is a space formed by the inner wall of the outer shell (4) and the left side of the tube sheet (19). The air inlet chamber (16) is connected to the air inlet pipe (18), and the air inlet pipe (18) is connected to the fan (17). The filter cylinder (13) is a cylinder with openings at both ends. The filter cylinder (13) is horizontally mounted between the two tube sheets (19). The left end of the filter cylinder (13) is connected to the air inlet chamber (16), and the right end is connected to the settling chamber (6). The settling chamber (6) has an air outlet pipe (7) installed at the right end and an opening at the bottom, where an ash discharge valve (8) is connected. The dust removal system includes a blow pipe (5) that surrounds the filter cylinder (13) and the outer space (11) and a filter baffle (1) that can move back and forth in the outer space (11). The blow pipe (5) is equipped with an air tank (10) and two sets of pulse valves (9), and the pulse valves (9) are installed on both sides of the air tank (10); the blow pipe (5) has several nozzles (12) with openings facing the filter baffle (1) on the vertical pipes parallel to the left and right; and several sets of symmetrical limiters (2) are installed on the horizontal pipes parallel to the top and bottom. The limiters (2) at the top and bottom positions limit the top and bottom of the filter baffle (1) respectively. The filter baffle (1) is mounted on the positioning rod, which is horizontally positioned in the external space (11). Under the compressed airflow ejected from the nozzle (12), the filter baffle (1) moves left and right along the positioning rod. The limiter (2) includes a limiter housing (202), a slider (204) installed inside the limiter housing (202), and a ball (201). The slider (204) is connected to the inside of the limiter housing (202) by a spring (208). The spring (208) has a small hole (203) in the area corresponding to the limiter housing (202). The upper end of the limiter housing (202) is an air inlet, and a ball that can rotate around the shaft is installed at the air inlet. A rotating, grooved ball (201) has a channel (206) inside to allow airflow to pass through. The groove of the ball (201) is stuck in the soft rubber (207) at the inner edge of the limiter housing (202). After the ball (201) is hit by the channel (206) by the high-pressure airflow, the ball (201) rotates while sending gas into the limiter (2). After rotation, the groove is fixed again in the soft rubber (207).

2. The reciprocating impact-type staggered filter cartridge dust collector according to claim 1, characterized in that: The flower plate (19) has several large openings and small openings in the middle. The large openings are surrounded by four small openings. The filter cylinder (13) is installed at the large openings, and the nozzle (12) is inserted at the small openings.

3. The reciprocating impact-type staggered filter cartridge dust collector according to claim 1, characterized in that: The filter baffle (1) is composed of a baffle base (101) and a baffle sidewall (102). The baffle base (101) has several openings. The baffle sidewall (102) stands on the surface of the baffle base (101) and is perpendicular to it. The baffle base (101) has several large openings in the middle, which are fitted around the filter cylinder (13). Each large opening corresponds to four baffle sidewalls (102). Small openings are provided at the corners of the baffle sidewalls (102) for the positioning rod to pass through. The baffle sidewalls (102) are columns formed by stretching a figure composed of two minor arcs.

4. The reciprocating impact-type staggered filter cartridge dust collector according to claim 1, characterized in that: The nozzles (12) are arranged around the filter cylinder (13), and there are four corresponding nozzles (12) at the four corners of each filter cylinder (13).

5. The reciprocating impact-type staggered filter cartridge dust collector according to claim 1, characterized in that: The channel (206) is an angular groove, that is, the side grooves and the bottom grooves are angular to each other. When the ball (201) rotates, the direction of the side grooves of the channel (206) changes left and right.

6. The reciprocating impact-type staggered filter cartridge dust collector according to claim 1, characterized in that: The limiter housing (202) is provided with a slider baffle (205) inside. The slider (204) slides under the action of high-pressure airflow. The slider baffle (205) is used to limit the sliding distance of the slider (204).

7. The reciprocating impact-type staggered filter cartridge dust collector according to claim 1, characterized in that: Gas check valves (3) are installed on the left and right sides of the blowpipe (5) on which the limiter (2) is installed.

8. The reciprocating impact-type staggered filter cartridge dust collector according to claim 1, characterized in that: A guide plate (15) is provided at the position where the air intake chamber (16) and the filter chamber (14) are connected. The guide plate (15) is in the shape of a frustum.

Images