A high-efficiency pulse bag dust collector and method

Abstract

The present invention discloses a high-efficiency pulse bag dust collector and method, which belongs to the field of dust removal technology. It includes a blowing assembly, a dust collector body, a bracket and a dust powder absorption module. The blowing assembly is fixedly connected to the top of the dust collector body, the blowing assembly is movably connected to the dust collector body, the bracket is fixedly connected to the outer side wall of the dust collector body by welding, the dust powder absorption module is fixedly connected to the dust collector body, the blowing assembly includes a power source, a ventilation plate and an air blowing pipe, the ventilation plate is fixedly connected to the power source, the air blowing pipe is fixedly connected to the ventilation plate, the side wall of the air blowing pipe is provided with a blowing hole, and the side wall of the air blowing pipe is provided with an external thread. Through the use of the blowing assembly and the dust powder absorption module, the present invention can more fully and evenly remove the powder adsorbed on the filter element, and can fully absorb and store the dust inside the dust collector, and is easy to use.

Description

Technical Field

[0001] The invention relates to a high-efficiency pulse bag dust collector and a method thereof, belonging to the technical field of dust removal. Background Art

[0002] In the early stage of the construction of the polyformaldehyde device, the tail gas from the polyformaldehyde pellet silo passes through the pellet pulse bag dust collector to separate the powder entrained in the tail gas. The gas enters the CL504 tower for washing and then discharges. The powder is recovered and processed at the bottom of the dust collector. The working principle of the high-efficiency pulse bag dust collector is that after the dust-laden tail gas enters the dust collector, the heavier dust in the tail gas falls to the bottom of the dust collector, and the lighter powder is adsorbed on the outside of the filter element. By starting the pulse valve and using compressed air to back-blow the inside of the filter element, the powder is separated from the filter element, which can achieve the effect of cleaning.

[0003] Due to the physical properties of polyformaldehyde powder, the powder is relatively light. The existing pulse dust collector has 9 groups of 61 filter elements with a length of 2030mm. The back-flushing nitrogen port is 300mm away from the filter element outlet, resulting in pressure loss during the back-flushing process. The effect of knocking off the powder on the filter element is poor, resulting in a large amount of powder gathering on the filter element, which leads to a high pressure difference in the dust collector, incomplete exhaust gas absorption, and a decline in the quality of the granular product. The present invention proposes a high-efficiency pulse bag dust collector, which extends the back-flushing nitrogen ports of 9 groups of 61 filter elements vertically downward by 1500mm into the filter element and blocks them at the outlet. The f8 drill bit is used to evenly drill holes every 100mm around the periphery, which can make the back-flushing more uniform and more fully absorb the floating powder in the dust collector. Summary of the Invention

[0004] The purpose of the present invention is to provide a high-efficiency pulse bag dust collector and method in order to solve the above problems, which can more evenly blow off the powder adsorbed on the outside of the filter element and more fully absorb the dust inside the dust collector.

[0005] The present invention achieves the above-mentioned purpose through the following technical scheme, a high-efficiency pulse bag dust collector and method, including a blowing assembly, a dust collector body, a bracket and a dust powder absorption module, the blowing assembly is fixedly connected to the top of the dust collector body, the blowing assembly is movably connected to the dust collector body, the bracket is fixedly connected to the outer side wall of the dust collector body by welding, and the dust powder absorption module is fixedly connected to the dust collector body.

[0006] Preferably, in order to facilitate flushing of powder on the outer surface of the filter element, the blowing assembly includes a power source, a vent plate and a blow pipe, the vent plate is fixedly connected to the power source, the blow pipe is fixedly connected to the vent plate, the side wall of the blow pipe is provided with a blow hole, and the side wall of the blow pipe is provided with an external thread.

[0007] Preferably, in order to facilitate the fixation of the filter element, the spray assembly includes a sealing ring and a rubber ring, the inner side wall of the sealing ring is provided with an internal thread, the internal thread is threadedly connected to the external thread, and the rubber ring is fixedly sleeved on the outer side wall of the sealing ring.

[0008] Preferably, in order to facilitate the filtering of dust and impurities in the exhaust gas, the dust collector body includes an outer shell, the side walls of the outer shell are fixedly provided with an air inlet pipe and an air outlet pipe, the bottom end of the outer shell is fixedly provided with an ash outlet tube, and the dust collector body includes a fixed plate, a filter element and a bag frame, the fixed plate is arranged inside the outer shell by welding, the filter element is inserted into the side wall of the fixed plate, and the filter element is sleeved on the outside of the bag frame.

[0009] Preferably, in order to facilitate the absorption of powder inside the dust collector, the dust and powder absorption module includes an ash suction rod, a rotating ring, a first motor and a telescopic rod. The rotating ring is rotatably connected to the ash suction rod, the ash suction rod is fixedly connected to the output shaft of the first motor, the telescopic end of the telescopic rod is fixedly connected to the first motor, an ash suction hole is opened on the side wall of the ash suction rod, and a brush is fixedly provided on the side wall of the ash suction rod.

[0010] Preferably, in order to facilitate the collection of powder, the dust and powder absorption module includes a telescopic tube, a hard tube, a straight tube, an ash outlet pipe and a second motor. The telescopic tube is fixedly penetrated through the side wall of the rotating ring, the hard tube and the telescopic tube are connected by a fixed sleeve, the straight tube and the hard tube are fixedly connected, the ash outlet pipe is fixedly arranged on the side wall of the lower port of the straight tube, and the lower end of the straight tube is fixedly connected to the output shaft of the second motor.

[0011] Preferably, in order to facilitate the absorption and storage of powder and to prevent the powder dust from being raised, the dust and powder absorption module includes a dust collection box and a fan, and the fan is fixedly arranged in the dust collection box.

[0012] The efficient pulse bag dust removal method includes the following steps:

[0013] Step 1: The exhaust gas conveying device conveys the exhaust gas into the intake pipe, the exhaust gas in the intake pipe enters the interior of the shell, the larger dust particles in the exhaust gas fall to the bottom of the shell, the exhaust gas in the shell enters the filter element, the smaller and lighter powder particles in the exhaust gas are blocked by the filter element, and the outer side wall of the filter element is adsorbed with powder.

[0014] Step 2: The air blowing pipe is inserted into the filter element, and the blowing assembly is started to blow nitrogen into the interior of the filter element. By backblowing nitrogen, the powder adsorbed on the outer side wall of the filter element can be blown away. The air blowing pipe is inserted into the filter element, and the side wall of the air blowing pipe is provided with uniform air blowing holes, which can achieve the purpose of uniform backblowing and can fully blow off the powder on the outer side wall of the filter element.

[0015] Step 3: After the powder on the filter element is blown off, it will float inside the shell. The dust and powder absorption module is started at the same time as the blowing component. The dust and powder absorption module can absorb and store the powder floating in the shell. The larger dust particles that fall to the bottom of the shell enter the ash outlet tube. At the same time, starting the dust and powder absorption module can absorb the larger dust particles in the ash outlet tube.

[0016] The beneficial effects of the present invention are: through the use of the blowing component, the present invention can achieve the effect of more uniformly blowing back the powder on the outer surface of the filter element, and at the same time can better fix the filter element to prevent the filter element from falling, using less production equipment, short process, and reduced investment. At the same time, through the use of the blowing component and the dust and powder absorption module, it can achieve the effect of more fully absorbing and storing the dust and floating powder that falls inside the dust collector, which can improve the powder recovery rate and improve product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the top structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the structure of the dust collector body of the present invention when viewed from above.

[0019] Figure 3 It is a front view structural diagram of the blowing assembly and the dust collector body of the present invention.

[0020] Figure 4 It is a schematic diagram of the disassembled structure of the blowing assembly and the dust collector body of the present invention.

[0021] Figure 5 This is a front view structural diagram of the dust and powder absorption module of the present invention.

[0022] Figure 6 This is a schematic diagram of the structure of the dust and powder absorption module of the present invention from a top view.

[0023] In the figure: 1. Blowing assembly; 101. Power source; 102. Ventilation plate; 103. Blowing pipe; 104. Blowing hole; 105. External thread; 106. Sealing ring; 107. Rubber ring; 108. Internal thread; 2. Dust collector body; 201. Outer shell; 202. Inlet pipe; 203. Outlet pipe; 204. Ash discharge barrel; 205. Fixed plate; 206. Filter element; 207. Bag frame; 3. Bracket; 4. Dust and powder absorption module; 401. Ash suction rod; 402. Rotating ring; 403. First motor; 404. Telescopic rod; 405. Ash suction hole; 406. Brush; 407. Telescopic tube; 408. Hard tube; 409. Straight tube; 410. Ash discharge pipe; 411. Second motor; 412. Ash collection box; 413. Fan. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-6 As shown, a high-efficiency pulse bag dust collector and method include a blowing assembly 1, a dust collector body 2, a bracket 3 and a dust powder absorption module 4. The blowing assembly 1 is fixedly connected to the top of the dust collector body 2, the blowing assembly 1 is movably connected to the dust collector body 2, the bracket 3 is fixedly connected to the outer side wall of the dust collector body 2 by welding, and the dust powder absorption module 4 is fixedly connected to the dust collector body 2.

[0026] When the present invention is in use, the blowing component 1 can blow off the powder adsorbed inside the dust collector body 2, the dust collector body 2 can filter the dust in the exhaust gas, the bracket 3 can support the stability of the dust collector body 2, and the dust and powder absorption module 4 can absorb the heavier dust falling from the inside of the dust collector body 2. The dust and powder absorption module 4 is started at the same time as the blowing component 1 is started. The powder blown off by the blowing component 1 is lighter and will float in the dust collector body 2. The dust and powder absorption module 4 can absorb the powder floating in the dust collector body 2 and can more fully absorb the dust inside the dust collector body 2.

[0027] like Figure 3-4As shown, the blowing assembly 1 includes a power source 101, a vent disc 102 and a blowing pipe 103. The vent disc 102 is fixedly connected to the power source 101, and the blowing pipe 103 is fixedly connected to the vent disc 102. The side wall of the blowing pipe 103 is provided with a blowing hole 104, and the side wall of the blowing pipe 103 is provided with an external thread 105. The blowing assembly 1 includes a sealing ring 106 and a rubber ring 107. The inner side wall of the sealing ring 106 is provided with an internal thread 108, which is threadedly connected to the external thread 105, and the rubber ring 107 is fixedly sleeved on the outer side wall of the sealing ring 106.

[0028] When it is necessary to blow off the powder outside the filter element 206, by starting the power source 101, the power source 101 supplies nitrogen to the vent plate 102, the nitrogen enters the blowing pipe 103, and the nitrogen is ejected from the blowing hole 104 opened on the blowing pipe 103. The blowing pipe 103 is arranged in the filter element 206, and the nitrogen can blow off the powder adsorbed on the outside of the filter element 206. The internal thread 108 and the external thread 105 are threadedly connected to indicate that the sealing ring 106 is connected to the blowing pipe 103. After the blowing pipe 103 is inserted into the filter element 206 and the bag frame 207, the sealing ring 106 is twisted to move downward to seal. The movement of ring 106 drives the rubber ring 107 to move. The lower end of the sealing ring 106 is inserted into the cloth bag frame 207. The rubber ring 107 is inserted into the cloth bag frame 207. The filter element 206 is sleeved on the outside of the cloth bag frame 207. The port of the filter element 206 is folded inward and plugged into the upper port of the cloth bag frame 207. The sealing ring 106 squeezes the rubber ring 107. The rubber ring 107 squeezes the port of the filter element 206 at the upper port of the cloth bag frame 207. The rubber ring 107 can achieve a sealing effect. The sealing ring 106 squeezes the filter element 206, which can better fix the filter element 206 and prevent the filter element 206 from falling.

[0029] like Figure 2-4 As shown, the dust collector body 2 includes an outer shell 201, and the side walls of the outer shell 201 are fixedly provided with an air inlet pipe 202 and an air outlet pipe 203. The bottom end of the outer shell 201 is fixedly provided with an ash discharge tube 204. The dust collector body 2 includes a fixed plate 205, a filter element 206 and a bag frame 207. The fixed plate 205 is arranged inside the outer shell 201 by welding, the filter element 206 is passed through the side wall of the fixed plate 205, and the filter element 206 is sleeved on the outside of the bag frame 207.

[0030] The shell 201 can protect the various components in the dust collector body 2. At the same time, the shell 201 can store dust. The exhaust gas is transported into the air inlet pipe 202 through the exhaust gas conveying device. The exhaust gas in the air inlet pipe 202 enters the shell 201. The heavier dust in the exhaust gas will fall to the bottom of the shell 201. The bottom of the shell 201 is an inclined structure. The dust slides into the ash outlet tube 204. The exhaust gas enters the filter element 206. The lighter powder in the exhaust gas will be blocked by the filter element 206. The powder is adsorbed on the outside of the filter element 206 and is The filtered exhaust gas enters the filter element 206, and the filtered exhaust gas in the filter element 206 enters the blowing pipe 103 through the blowing hole 104 at the lower end of the sealing ring 106. The filtered exhaust gas in the blowing pipe 103 is ejected through the blowing hole 104 at the upper end of the sealing ring 106, and the filtered exhaust gas enters the outlet pipe 203. By starting the purification device connected to the outlet pipe 203, the filtered exhaust gas can be purified and finally discharged. The bag frame 207 can support the filter element 206 to keep the filter element 206 in a supported state.

[0031] like Figure 5-6 As shown, the dust and powder absorption module 4 includes an ash absorption rod 401, a rotating ring 402, a first motor 403 and a telescopic rod 404. The rotating ring 402 is rotatably connected to the ash absorption rod 401, the ash absorption rod 401 is fixedly connected to the output shaft of the first motor 403, the telescopic end of the telescopic rod 404 is fixedly connected to the first motor 403, the side wall of the ash absorption rod 401 is provided with an ash absorption hole 405, the side wall of the ash absorption rod 401 is fixedly provided with a brush 406, and the dust and powder absorption module 4 includes a telescopic tube 407, a hard tube 408, a straight Tube 409, ash outlet pipe 410 and second motor 411, the telescopic tube 407 is fixedly penetrated through the side wall of the rotating ring 402, the hard tube 408 is connected to the telescopic tube 407 by a fixed sleeve, the straight tube 409 is fixedly connected to the hard tube 408, the ash outlet pipe 410 is fixedly set on the side wall of the lower port of the straight tube 409, and the lower end of the straight tube 409 is fixedly connected to the output shaft of the second motor 411. The dust and powder absorption module 4 includes an ash box 412 and a fan 413, and the fan 413 is fixedly set in the ash box 412.

[0032] When it is necessary to absorb dust and powder, the blowing component 1 is started and the fan 413 is started at the same time. The air inlet of the fan 413 is connected to the lower end of the ash discharge tube 204. The fan 413 is started to drive the air flow in the ash discharge tube 204. The air flow in the ash discharge tube 204 can drive the dust in the ash discharge tube 204 into the fan 413. The dust enters the ash collection box 412 through the fan 413 and can be collected.

[0033] The fan 413 starts to drive the air flow in the ash discharge pipe 410, the air flow in the ash discharge pipe 410 drives the air flow in the straight pipe 409, the air flow in the straight pipe 409 drives the air flow in the hard pipe 408, the air flow in the hard pipe 408 drives the air flow in the telescopic pipe 407, the air flow in the telescopic pipe 407 drives the air flow in the rotating ring 402, the interior of the rotating ring 402 is connected to the ash suction rod 401, the air flow in the rotating ring 402 drives the air flow in the ash suction rod 401, and the air flow in the ash suction rod 401 The air near the ash suction hole 405 is driven by the movement to enter the ash suction rod 401 from the ash suction hole 405, and the powder floating near the ash suction hole 405 enters the ash suction rod 401 through the ash suction hole 405, and the powder in the ash suction rod 401 enters the rotating ring 402, and the powder in the rotating ring 402 enters the telescopic tube 407, and the powder in the telescopic tube 407 enters the hard tube 408, and the powder in the hard tube 408 enters the straight tube 409, and the powder in the straight tube 409 enters the ash discharge pipe 410, and the powder in the ash discharge pipe 410 enters the ash collecting box 412 through the fan 413, and the powder is collected.

[0034] At the same time as the fan 413 is started, the second motor 411 is started to mobilize the straight tube 409 to rotate, the straight tube 409 rotates to drive the telescopic rod 404 to rotate, the telescopic rod 404 rotates to drive the first motor 403 to rotate, the first motor 403 rotates to drive the ash suction rod 401 to rotate, and the ash suction rod 401 can fully absorb the powder near the filter element 206. At the same time as the second motor 411 is started, the telescopic rod 404 is started, and the telescopic rod 404 starts to drive the first motor 403 to move, and the movement of the first motor 403 drives the ash suction rod 401 to move Through the coordinated use of the second motor 411 and the telescopic rod 404, the ash sucking rod 401 enters the area where the filter element 206 is located. There are 61 filter elements 206. The ash sucking rod 401 shuttles through the gaps between each filter element 206. When the telescopic rod 404 is started, the first motor 403 is started. The start of the first motor 403 drives the ash sucking rod 401 to rotate. The rotation of the ash sucking rod 401 drives the brush 406 to rotate. The rotation of the brush 406 can brush off the powder adsorbed on the outside of the filter element 206, and can absorb the powder more fully.

[0035] The efficient pulse bag dust removal method includes the following steps:

[0036] Step 1: The exhaust gas conveying device conveys the exhaust gas into the intake pipe 202, the exhaust gas in the intake pipe 202 enters the interior of the shell 201, the larger dust particles in the exhaust gas fall to the bottom of the shell 201, the exhaust gas in the shell 201 enters the filter element 206, the smaller and lighter powder particles in the exhaust gas are blocked by the filter element 206, and the powder is adsorbed on the outer side wall of the filter element 206.

[0037] Step 2: The air blowing pipe 103 is extended into the filter element 206, and the blowing assembly 1 is started to blow nitrogen into the interior of the filter element 206. By backblowing nitrogen, the powder adsorbed on the outer side wall of the filter element 206 can be blown away. The air blowing pipe 103 is extended into the filter element 206, and the side wall of the air blowing pipe 103 is provided with uniform air blowing holes 104, which can achieve the purpose of uniform backblowing and can fully blow off the powder on the outer side wall of the filter element 206.

[0038] Step 3: After the powder on the filter element 206 is blown off, it will float inside the shell 201. Start the dust and powder absorption module 4 at the same time as starting the spraying component 1. The dust and powder absorption module 4 can absorb and store the powder floating in the shell 201. The larger dust particles that fall to the bottom of the shell 201 enter the ash outlet tube 204. At the same time, starting the dust and powder absorption module 4 can absorb the larger dust particles in the ash outlet tube 204.

[0039] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0040] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A high-efficiency pulse bag dust collector, characterized by: The invention comprises a blowing assembly (1), a dust collector body (2), a bracket (3) and a dust and powder absorption module (4), wherein the blowing assembly (1) is movably connected to the dust collector body (2), the bracket (3) is fixedly connected to the outer side wall of the dust collector body (2) by welding, and the dust and powder absorption module (4) is fixedly connected to the dust collector body (2); The dust and powder absorption module (4) comprises an ash absorption rod (401), a rotating ring (402), a first motor (403) and a telescopic rod (404); the rotating ring (402) is rotatably connected to the ash absorption rod (401); the ash absorption rod (401) is fixedly connected to the output shaft of the first motor (403); the telescopic end of the telescopic rod (404) is fixedly connected to the first motor (403); an ash absorption hole (405) is provided on the side wall of the ash absorption rod (401); and a brush (406) is fixedly provided on the side wall of the ash absorption rod (401); The dust and powder absorption module (4) comprises a telescopic tube (407), a hard tube (408), a straight tube (409), an ash discharge pipe (410) and a second motor (411); the telescopic tube (407) is fixedly arranged on the side wall of the rotating ring (402); the hard tube (408) and the telescopic tube (407) are connected by a fixed sleeve; the straight tube (409) and the hard tube (408) are fixedly connected; the ash discharge pipe (410) is fixedly arranged on the side wall of the lower end of the straight tube (409); and the lower end of the straight tube (409) is fixedly connected to the output shaft of the second motor (411); The dust and powder absorption module (4) comprises a dust collection box (412) and a fan (413), wherein the fan (413) is fixedly arranged in the dust collection box (412).

2. A high-efficiency pulse bag dust collector according to claim 1, characterized in that: The blowing assembly (1) comprises a power source (101), a vent disc (102) and an air blowing pipe (103), wherein the vent disc (102) is fixedly connected to the power source (101), and the air blowing pipe (103) is fixedly connected to the vent disc (102), a side wall of the air blowing pipe (103) is provided with an air blowing hole (104), and a side wall of the air blowing pipe (103) is provided with an external thread (105).

3. A high-efficiency pulse bag dust collector according to claim 2, characterized in that: The spray assembly (1) comprises a sealing ring (106) and a rubber ring (107); an inner side wall of the sealing ring (106) is provided with an internal thread (108); the internal thread (108) is threadedly connected to the external thread (105); and the rubber ring (107) is fixedly sleeved on the outer side wall of the sealing ring (106).

4. The high-efficiency pulse bag dust collector according to claim 1, characterized in that: The dust collector body (2) comprises a shell (201), an air inlet pipe (202) and an air outlet pipe (203) are fixedly provided on the side wall of the shell (201), and an ash outlet cylinder (204) is fixedly provided at the bottom end of the shell (201).

5. The high-efficiency pulse bag dust collector according to claim 4, characterized in that: The dust collector body (2) comprises a fixed disk (205), a filter element (206) and a bag frame (207); the fixed disk (205) is arranged inside the housing (201) by welding; the filter element (206) is passed through the side wall of the fixed disk (205); and the filter element (206) is sleeved on the outside of the bag frame (207).

6. A high-efficiency pulse bag dust removal method, based on the high-efficiency pulse bag dust collector according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: The exhaust gas conveying device conveys the exhaust gas into the intake pipe (202), the exhaust gas in the intake pipe (202) enters the interior of the housing (201), the dust particles with larger particles in the exhaust gas fall to the bottom of the housing (201), the exhaust gas in the housing (201) enters the filter element (206), the powder particles with smaller and lighter weight in the exhaust gas are blocked by the filter element (206), and the powder is adsorbed on the outer side wall of the filter element (206); Step 2: The air blowing pipe (103) is inserted into the filter element (206), and the blowing assembly (1) is started to blow nitrogen into the interior of the filter element (206). By back-blowing the nitrogen, the powder adsorbed on the outer side wall of the filter element (206) can be blown away. The air blowing pipe (103) is inserted into the filter element (206), and the side wall of the air blowing pipe (103) is provided with uniform air blowing holes (104), which can achieve the purpose of uniform back-blowing and can fully blow away the powder on the outer side wall of the filter element (206); Step 3: After the powder on the filter element (206) is blown off, it will float inside the housing (201). The dust powder absorption module (4) is activated while the blowing component (1) is activated. The dust powder absorption module (4) can absorb and store the powder floating in the housing (201). The larger dust particles that fall to the bottom of the housing (201) enter the ash outlet tube (204). At the same time, the dust powder absorption module (4) can absorb the larger dust particles in the ash outlet tube (204).

Images