Pulse dust collector

Abstract

The invention discloses a pulse dust remover, and relates to the technical field of dust removers, the pulse dust remover comprises an outer shell and supporting legs fixedly mounted on the outer wall of the bottom of the periphery of the outer shell, an air inlet pipe is fixedly mounted at the bottom of one side of the outer shell, a top cover is fixedly mounted at the top of the outer shell, and an exhaust pipe is fixedly mounted on one side of the top cover; a collecting cover is fixedly mounted at the bottom of the outer shell; the device further comprises a partition plate, a filter cloth bag, a flow guide mechanism, a bag twisting mechanism, a jacking mechanism, a driving mechanism and a pulse air inlet mechanism; the partition plate is fixedly mounted in the top of the circumference of the outer shell, and a plurality of mounting holes are formed in the top of the partition plate; a plurality of groups of filter cloth bags are arranged, the plurality of groups of filter cloth bags are vertically and uniformly distributed in the outer shell, and the tops of the filter cloth bags are arranged in one-to-one correspondence with the mounting holes; the device has the beneficial effect that the effect of fully cleaning ash residues on the surface of the cloth bag is achieved.

Description

Technical Field

[0001] This application relates to the field of dust collector technology, and in particular to a pulse dust collector. Background Technology

[0002] A pulse jet dust collector is a new type of high-efficiency dust removal equipment improved upon the baghouse dust collector. Its working principle is to filter dust-laden gas using the filtration effect of the fiber fabric. When the dust-laden gas enters the baghouse dust collector, large, heavy dust particles settle down due to gravity and fall into the ash hopper; the gas containing finer dust particles is purified as it passes through the filter bags, where the dust is trapped.

[0003] Pulse jet baghouse dust collectors use pulse backflushing for cleaning. However, during long-term use, because the bags are fixed, the pulse gas cannot be blown sufficiently to every part of the bag's interior. As a result, some ash and slag that are difficult to blow off will adhere to the bags, thus affecting the filtration efficiency of the bags. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies where it is difficult to thoroughly clean the ash and slag adhering to the filter bags, and to propose a pulse jet dust collector. Its advantage lies in achieving a thorough cleaning of the ash and slag on the filter bag surface.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a pulse dust collector, comprising an outer shell and support legs fixedly installed on the bottom outer wall of the outer shell, an air inlet pipe fixedly installed on one side of the bottom of the outer shell, a top cover fixedly installed on the top of the outer shell, an exhaust pipe fixedly installed on one side of the top cover, and a collection cover fixedly installed on the bottom of the outer shell; it also includes a partition, filter bags, a flow guiding mechanism, a bag twisting mechanism, a top-mounting mechanism, a drive mechanism, and a pulse air intake mechanism; the partition is fixedly installed inside the top circumference of the outer shell, and the top of the partition has several mounting holes; the filter bags are in several groups, and the several groups of filter bags... The filter bags are vertically and evenly distributed inside the outer casing, with the top of each filter bag corresponding to one of the mounting holes. Several sets of flow guiding mechanisms are vertically arranged inside the filter bags to guide the pulsed airflow. Several sets of bag twisting mechanisms are installed at the bottom of the filter bags. An upper lifting mechanism is installed at the bottom of the bag twisting mechanism to drive its movement. A driving mechanism is installed in the middle of the upper lifting mechanism to drive its up and down movement. The pulse air intake mechanism is fixedly installed on the other side of the top cover.

[0006] Preferably, a support short pipe is fixedly installed in the mounting hole, and a gas collection hood is provided directly above the support short pipe. The support short pipe and the gas collection hood are fixed together by a number of support rods arranged in a ring array. An exhaust space is left between the support short pipe and the gas collection hood. The top of the filter bag is fixedly connected to the bottom of the support short pipe.

[0007] Preferably, the flow guiding mechanism includes an outer tube and an inner tube. The top of the inner tube is fixedly installed at the bottom of the gas collecting hood and communicates with the gas collecting hood. The outer tube is fitted over the inner tube and the bottom of the outer tube is connected to the torsion bag mechanism. The outer surface of the inner tube has several vertically arranged, annularly distributed air holes. The upper half of the outer surface of the outer tube has several vertically arranged, annularly distributed upper air holes. The lower half of the outer surface of the outer tube has several vertically arranged, annularly distributed lower air holes. The upper and lower air holes are staggered.

[0008] Preferably, the bottom of the filter bag is provided with an installation tube, the installation tubes are fixed together by a connecting rod, and the installation tube is fixedly connected to the inner wall of the bottom circumference of the outer shell by the connecting rod.

[0009] Preferably, the bag twisting mechanism includes a support block, the bottom of the filter bag is fixedly installed at the circumferential position of the top of the support block, the support block is movably disposed inside the mounting tube, the inner wall of the mounting tube is provided with an arc-shaped limiting groove from bottom to top, and a limiting block is provided on the outer wall of the support block, the limiting block being slidably disposed in the limiting groove.

[0010] Preferably, the upper lifting mechanism includes a support plate and a plurality of upper lifting blocks, the plurality of upper lifting blocks being rotatably mounted on the bottom of the support block, the support plate being fan-shaped, and the bottom of the upper lifting blocks being fixedly mounted to the top of the support plate.

[0011] Preferably, the driving mechanism includes a rotating motor and a rotating rod. The rotating motor is fixedly installed at the top center of the top cover, and the rotating rod is vertically arranged in the middle of the outer shell. The output shaft of the rotating motor is fixedly connected to the top of the rotating rod, and the rotating rod is rotatably connected to the partition plate. The bottom of the rotating rod is provided with a thread, and the top center of the support plate is provided with a threaded hole that matches the bottom of the rotating rod.

[0012] Preferably, the pulse air intake mechanism includes a pulse air bag, several metal hoses, several air supply pipes, and several nozzles. The pulse air bag is fixedly installed on one outer wall of the top cover. Several air supply pipes are fixedly installed at equal intervals on the top inner wall of the top cover. Several nozzles are evenly installed on the air supply pipes. Each nozzle is arranged in a one-to-one correspondence with the gas collection hood and is located directly above the gas collection hood. The air supply pipes are connected to the pulse air bag through the metal hoses.

[0013] Compared with the prior art, the beneficial effects of this application are as follows: (1) In the process of cleaning, the bag twisting mechanism can drive the filter bag to twist. The stubborn ash on the filter bag will be lifted up due to the twisting force of the filter bag, and then it will be easier to separate from the filter bag during the pulse backflushing process, thus achieving the effect of fully removing ash from the filter bag.

[0014] (2) During the dust removal process, the pulse backflush airflow will be guided by the flow guiding mechanism. The backflush airflow can only be discharged from the upper or lower air hole at a time. Compared with the direct pulse backflush of the entire filter bag, the pulse air pressure is greater and the dust removal effect is better. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention.

[0016] Figure 2 This is a schematic diagram of the structure of the top inside the outer casing of the present invention.

[0017] Figure 3 This is a schematic diagram of the structure of the bottom inside the outer casing of the present invention.

[0018] Figure 4 This is a schematic diagram of the top structure of the twisting bag mechanism of the present invention.

[0019] Figure 5 This is a schematic diagram of the bottom structure of the upper lifting mechanism of the present invention.

[0020] Figure 6 This is a schematic diagram of the structure of the filter bag of the present invention.

[0021] Figure 7 This is a schematic diagram of the flow guiding mechanism of the present invention.

[0022] Figure 8 This is a schematic diagram of the structure of the outer tube of the present invention.

[0023] Figure 9 This is an enlarged view of point A in the present invention.

[0024] Figure 10 This is a schematic diagram of the inner tube of the present invention.

[0025] Figure 11 This is a cross-sectional view of the mounting pipe and support block of the present invention.

[0026] Figure 12 This is a schematic diagram of the structure of the limiting groove of the present invention.

[0027] In the diagram: 1. Outer shell; 101. Inlet duct; 102. Top cover; 103. Exhaust duct; 104. Inspection cover; 2. Collection cover; 301. Pulse air manifold; 302. Metal flexible hose; 401. Rotating motor; 402. Rotating rod; 403. Support plate; 404. Top block; 5. Partition plate; 601. Support short pipe; 602. Air collection cover; 701. Mounting pipe; 702. Connecting rod; 703. Limiting groove; 8. Support block; 801. Limiting block; 9. Filter bag; 10. Outer tube; 1001. Upper air hole; 1002. Lower air hole; 11. Inner tube. Detailed Implementation

[0028] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0029] In the description of this application, it should be noted that the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., which indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of this application.

[0030] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0031] Example 1 One preferred embodiment of this application, such as Figures 1 to 12As shown, a pulse dust collector includes: an outer shell 1 and support legs fixedly installed on the bottom outer wall of the outer shell 1; an air inlet pipe 101 is fixedly installed on one side of the bottom of the outer shell 1; a top cover 102 is fixedly installed on the top of the outer shell 1; an exhaust pipe 103 is fixedly installed on one side of the top cover 102; and a collection cover 2 is fixedly installed on the bottom of the outer shell 1. It also includes a partition 5, filter bags 9, a flow guiding mechanism, a bag twisting mechanism, a top-mounting mechanism, a drive mechanism, and a pulse air intake mechanism. The partition 5 is fixedly installed inside the top circumference of the outer shell 1, and the top of the partition 5 has several mounting holes. Several sets of filter bags 9 are vertically and evenly distributed inside the outer shell 1, with the top of each filter bag 9 corresponding to one of the mounting holes. Several sets of flow guiding mechanisms are vertically arranged around the filter bags 9. The interior is used to guide the pulse airflow; there are several sets of twisting bag mechanisms, which are respectively installed at the bottom of the filter bag 9; the top mechanism is installed at the bottom of the twisting bag mechanism to drive the twisting bag mechanism to move; the drive mechanism is installed in the middle of the top mechanism to drive the top mechanism to move up and down; the pulse air intake mechanism is fixedly installed on the other side of the top cover 102; the pulse air intake mechanism includes a pulse air bag 301, several metal hoses 302, several air supply pipes and several nozzles. The pulse air bag 301 is fixedly installed on one side of the outer wall of the top cover 102. Several air supply pipes are fixedly installed at equal intervals on the top inner wall of the top cover 102. Several nozzles are evenly installed on the air supply pipes. The nozzles are arranged one-to-one with the air collection hood 602 and are located directly above the air collection hood 602. The air supply pipes are connected to the pulse air bag 301 through the metal hoses 302.

[0032] A support short pipe 601 is fixedly installed in the mounting hole. A gas collection hood 602 is set directly above the support short pipe 601. The support short pipe 601 and the gas collection hood 602 are fixed together by a number of support rods arranged in a ring array. An exhaust space is left between the support short pipe 601 and the gas collection hood 602. The top of the filter bag 9 is fixedly connected to the bottom of the support short pipe 601.

[0033] During use, the airflow to be filtered enters the housing 1 through the inlet pipe 101, passes through the filter bag 9 and flows out through the support short pipe 601, and is finally discharged from the exhaust pipe 103. Dust is isolated outside the filter bag 9 and falls into the collection hood 2. A cleaning port is provided on one side of the collection hood 2 to facilitate the discharge of residue inside the collection hood 2. At the same time, an inspection port is provided on the side of the housing 1, and an inspection cover 104 is installed outside the inspection port. During operation, the pulse valve in the pulse air tank 301 is opened, and the pulse gas passes through the metal hose 302 and the air supply pipe, and is finally sprayed by the nozzle onto the air collection hood 602 to realize pulse back-blowing of the filter bag 9, thereby achieving dust removal from its surface. During the dust removal process, the drive mechanism drives the upper top mechanism to move upward, thereby driving the bag twisting mechanism to rotate. The bag twisting mechanism rotates and moves upward, thereby causing the filter bag 9 to twist. The stubborn ash on the filter bag 9 will be lifted up due to the torque of the filter bag 9, and then it is easier to separate from the filter bag 9 during the pulse backflushing process, thus achieving the effect of fully removing ash from the filter bag 9. In addition, as the bag twisting mechanism rotates and moves upward, it causes the flow guiding mechanism to continuously shift, resulting in the pulsed backflushing gas intermittently changing direction, thus achieving a more thorough dust removal effect.

[0034] Specifically, such as Figures 2-6 ,as well as Figure 11 and Figure 12 As shown, the bottom of the filter bag 9 is provided with an installation tube 701, which is fixed to each other by a connecting rod 702. The installation tube 701 is fixedly connected to the inner wall of the bottom circumference of the outer shell 1 by the connecting rod 702. The bag twisting mechanism includes a support block 8. The bottom of the filter bag 9 is fixedly installed at the circumferential position of the top of the support block 8. The support block 8 is movably disposed in the installation tube 701. The inner wall of the installation tube 701 is provided with an arc-shaped limiting groove 703 from bottom to top. A limiting block 801 is provided on the outer wall of the support block 8, and the limiting block 801 is slidably disposed in the limiting groove 703. The top-mounting mechanism includes a support plate 403 and a plurality of top-mounting blocks 404. The plurality of top-mounting blocks 404 are rotatably installed on the bottom of the support block 8. The support plate 403 is arranged in a fan-shaped manner, and the bottom of the top-mounting blocks 404 is fixedly installed with the top of the support plate 403. The drive mechanism includes a rotary motor 401 and a rotating rod 402. The rotary motor 401 is fixedly installed at the top center of the top cover 102. The rotating rod 402 is vertically arranged in the middle of the outer shell 1. The output shaft of the rotary motor 401 is fixedly connected to the top of the rotating rod 402. The rotating rod 402 is rotatably connected to the partition plate 5. The bottom of the circumference of the rotating rod 402 is provided with threads. The top center of the support plate 403 is provided with a threaded hole that matches the bottom of the circumference of the rotating rod 402.

[0035] During the pulse jet dust removal process, the support block 8 is initially located at the bottom, and the filter bag 9 remains vertically straight. One pulse jet dust removal is performed first, followed by the activation of the rotating motor 401. The rotating motor 401 drives the rotating rod 402 to rotate, which in turn moves the support plate 403 upwards via the threaded structure. This, in turn, moves the upper block 404 and the support block 8 upwards. Since the limiting block 801 on the surface of the support block 8 is slidably confined within the limiting groove 703, the support block 8 rotates along with the limiting groove 703 as it moves upwards, causing the filter bag 9 to twist. The stubborn ash on the filter bag 9 will lift due to the torque. At this point, another pulse jet dust removal is performed. After completion, the rotating motor 401 reverses direction, causing the filter bag 9 to return to its original position. This process is repeated to achieve thorough dust removal from the filter bag 9.

[0036] Example 2 like Figures 7-10 As shown, the flow guiding mechanism includes an outer tube 10 and an inner tube 11. The top of the inner tube 11 is fixedly installed on the bottom of the gas collecting hood 602 and is connected to the gas collecting hood 602. The outer tube 10 is sleeved on the inner tube 11. The bottom of the outer tube 10 is connected to the bag twisting mechanism. The outer surface of the inner tube 11 has several vertically arranged air holes arranged in a ring array. The upper half of the outer surface of the outer tube 10 has several vertically arranged upper air holes 1001 arranged in a ring array. The lower half of the outer surface of the outer tube 10 has several vertically arranged lower air holes 1002 arranged in a ring array. The upper air holes 1001 and the lower air holes 1002 are staggered.

[0037] During the pulse backflushing dust removal process, initially, the upper air hole 1001 on the outer tube 10 and the air blowing hole of the inner tube 11 are connected, while the lower air hole 1002 on the outer tube 10 and the air blowing hole of the inner tube 11 are misaligned. At this time, a pulse backflushing is performed, and all the backflushing airflow is discharged from the upper air hole 1001, achieving dust removal for the upper half of the filter bag 9. Compared with direct pulse backflushing of the entire filter bag 9, the pulse air pressure is greater at this time, and the dust removal effect is better. When the support block 8 rotates and moves upward to the top, the upper air hole 1001 on the outer tube 10 and the air blowing hole of the inner tube 11 are misaligned, while the lower air hole 1002 on the outer tube 10 and the air blowing hole of the inner tube 11 are connected. At this time, another pulse dust removal is performed, and all the backflushing airflow is discharged from the lower air hole 1002, achieving dust removal for the lower half of the filter bag 9. The above operation is repeated to achieve thorough dust removal of the filter bag 9.

[0038] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A pulse dust collector, comprising: The outer shell (1) and support legs fixedly installed on the bottom outer wall around the outer shell (1), an air inlet pipe (101) is fixedly installed on one side of the bottom of the outer shell (1), a top cover (102) is fixedly installed on the top of the outer shell (1), an exhaust pipe (103) is fixedly installed on one side of the top cover (102), and a collection cover (2) is fixedly installed on the bottom of the outer shell (1). The outer shell (1) is characterized by further comprising: Partition (5); The partition (5) is fixedly installed inside the top circumference of the outer shell (1), and the top of the partition (5) is provided with several mounting holes; Filter bag (9); there are several groups of filter bags (9), and the several groups of filter bags (9) are vertically and evenly distributed inside the outer shell (1), and the top of the filter bag (9) is set one-to-one with the mounting hole; The flow guiding mechanism is provided in several groups, and each group of the flow guiding mechanism is vertically arranged inside the filter bag (9) to guide the pulse airflow. Twisting bag mechanism; the twisting bag mechanism has several sets, and the several sets of twisting bag mechanisms are respectively installed at the bottom of the filter bag (9); Top-mounting mechanism; the top-mounting mechanism is installed at the bottom of the twisting bag mechanism to drive the twisting bag mechanism to move; A drive mechanism; the drive mechanism is installed in the middle of the upper lifting mechanism to drive the upper lifting mechanism to move up and down; Pulse air intake mechanism; the pulse air intake mechanism is fixedly installed on the other side of the top cover (102).

2. The pulse dust collector as described in claim 1, characterized in that, A support short pipe (601) is fixedly installed in the mounting hole. A gas collection hood (602) is set directly above the support short pipe (601). The support short pipe (601) and the gas collection hood (602) are fixed together by a number of support rods arranged in a ring array. An exhaust space is left between the support short pipe (601) and the gas collection hood (602). The top of the filter bag (9) is fixedly connected to the bottom of the support short pipe (601).

3. A pulse dust collector as described in claim 2, characterized in that, The flow guiding mechanism includes an outer tube (10) and an inner tube (11). The top of the inner tube (11) is fixedly installed at the bottom of the gas collecting hood (602) and communicates with the gas collecting hood (602). The outer tube (10) is sleeved on the inner tube (11). The bottom of the outer tube (10) is connected to the twisting bag mechanism. The outer surface of the inner tube (11) is provided with a number of air blowing holes arranged in a ring array and vertically. The upper half of the outer surface of the outer tube (10) is provided with a number of upper air holes (1001) arranged in a ring array and vertically. The lower half of the outer surface of the outer tube (10) is provided with a number of lower air holes (1002) arranged in a ring array and vertically. The upper air holes (1001) and the lower air holes (1002) are staggered.

4. A pulse dust collector as described in claim 1, characterized in that, The bottom of the filter bag (9) is provided with an installation tube (701), and the installation tubes (701) are fixed together by a connecting rod (702). The installation tubes (701) are fixedly connected to the inner wall of the bottom circumference of the outer shell (1) by the connecting rod (702).

5. A pulse dust collector as described in claim 4, characterized in that, The bag twisting mechanism includes a support block (8), the bottom of the filter bag (9) is fixedly installed at the circumferential position of the top of the support block (8), the support block (8) is movably disposed in the mounting tube (701), the inner wall of the mounting tube (701) is provided with an arc-shaped limiting groove (703) from bottom to top, and a limiting block (801) is provided on the outer wall of the support block (8), the limiting block (801) is slidably disposed in the limiting groove (703).

6. A pulse dust collector as described in claim 5, characterized in that, The upper lifting mechanism includes a support plate (403) and a plurality of upper lifting blocks (404). The plurality of upper lifting blocks (404) are rotatably installed on the bottom of the support block (8). The support plate (403) is arranged in a fan-shaped manner. The bottom of the upper lifting block (404) is fixedly installed with the top of the support plate (403).

7. A pulse dust collector as described in claim 6, characterized in that, The driving mechanism includes a rotating motor (401) and a rotating rod (402). The rotating motor (401) is fixedly installed at the top center of the top cover (102). The rotating rod (402) is vertically arranged in the middle of the outer shell (1). The output shaft of the rotating motor (401) is fixedly connected to the top of the rotating rod (402). The rotating rod (402) is rotatably connected to the partition plate (5). The bottom of the rotating rod (402) is provided with a thread. The top center of the support plate (403) is provided with a threaded hole that matches the bottom of the rotating rod (402).

8. A pulse dust collector as described in claim 2, characterized in that, The pulse air intake mechanism includes a pulse air bag (301), several metal hoses (302), several air supply pipes, and several nozzles. The pulse air bag (301) is fixedly installed on one side of the outer wall of the top cover (102). Several air supply pipes are fixedly installed at equal intervals on the top inner wall of the top cover (102). Several nozzles are evenly installed on the air supply pipes. The nozzles are arranged one-to-one with the air collection hood (602) and are located directly above the air collection hood (602). The air supply pipes are connected to the pulse air bag (301) through the metal hoses (302).

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