Cement production cloth bag dust collector

Abstract

The utility model relates to a cloth bag dust collector for cement production belongs to cement production technical field. The existing cloth bag dust collector adopts the sealing plate at the ash bucket bottom, and the collection box assembly needs manual operation, and the narrow space leads to inconvenience. In order to solve this problem, the dust collector includes the casing, the flower board separates the clean gas chamber and dust gas chamber, the filter bag, the ash bucket connection bottom connection frame, the pulse dust cleaning device. The outer envelope is rotationally connected through the pin shaft in the connection frame, the inner sealing plate is slidably inserted in the outer envelope, the slide plate one end is rotationally connected with the inner sealing plate end and slides in the connection frame sliding slot, and the torsional spring drives the outer envelope reset. The collection box is located below the connection frame, pushes the slide plate to move when pushing, drives the outer envelope and the inner sealing plate to open the passage, and the torsional spring resets the passage when moving out. The dust collector is used for cement production dust filtration, and the ash bucket outlet is automatically opened and closed, which simplifies the operation and improves the dust recovery efficiency.

Description

Technical Field

[0001] This utility model relates to the field of cement production technology, and in particular to a bag filter dust collector for cement production. Background Technology

[0002] In the cement production process, baghouse dust collectors are the core equipment for controlling dust emissions and a key link in realizing the resource recovery of dust. The dust particles filtered by the baghouse dust collector have secondary utilization value. In traditional baghouse dust collectors, the dust hopper at the bottom of the dust collector is usually equipped with a separate sealing plate or other structure. This makes it inconvenient for workers to assemble and fix the collection box and then disassemble it to connect the dust hopper and the collection box for collection. Moreover, the space under the dust hopper is relatively narrow, making the disassembly operation even more inconvenient. Utility Model Content

[0003] The purpose of this utility model is to solve the shortcomings of the existing technology, which has a cumbersome and laborious operation process and affects the dust collection efficiency, and to propose a bag dust collector for cement production.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A baghouse dust collector for cement production includes a shell, a tube sheet fixedly installed inside the shell, the tube sheet dividing the shell into an upper clean air chamber and a lower dust chamber, a dust hopper fixedly connected to the bottom of the shell, an air inlet on the side wall of the dust chamber and an air outlet on the top of the shell. Multiple filter bags are vertically suspended on the tube sheet, with the bag openings sealed to the mounting holes of the tube sheet, and the bag bodies extending into the dust chamber; The pulse cleaning device includes an air tank fixed to the outer wall of the housing, a pulse valve located in the clean air chamber, and a blow pipe connected to the pulse valve. The blow pipe is equipped with a nozzle aimed at the bag opening of the filter bag. The connecting frame is fixedly connected to the bottom of the ash hopper; The outer casing is rotatably mounted on the inner wall of the connecting frame via a pin. The inner sealing plate has one end that slides into the interior of the outer sealing shell; The slide plate has one end rotatably connected to the end of the inner sealing plate via a pin, and rectangular blocks are fixedly installed on both sides. Rectangular grooves are opened on both inner walls of the connecting frame. The rectangular blocks are slidably installed in the rectangular grooves, and the bottom end of the slide plate extends to the bottom of the connecting frame. A torsion spring, fitted onto the pin of the outer casing, is used to drive the outer casing to reset. The collection box is located directly below the connection box.

[0005] In one possible design, a bag cage is provided inside the filter bag, and a tube sheet is fixedly connected to the top of the bag cage.

[0006] In one possible design, a baffle is slidably provided on the side wall of the housing, and a partition is fixedly provided in the dust chamber. The partition is located between the air inlet and the filter bag and is used to guide the dust-laden gas from bottom to top through the filter bag.

[0007] In one possible design, the collection box is equipped with wheels at the bottom and a handle is fixed to the side wall.

[0008] In one possible design, the side wall of the collection box is provided with a latch, which is used to lock and fix the collection box to the connecting frame.

[0009] In one possible design, a sealing frame is fixedly installed on the inner wall of the connecting frame. When the outer shell is reset, the tops of the outer shell and the inner sealing plate are fitted and sealed with the sealing frame.

[0010] In one possible design, a U-shaped limiting frame is fixedly installed on the outer wall of the connecting frame, and the U-shaped limiting frame extends to the bottom of the connecting frame to guide the collection box to move in a straight line.

[0011] In one possible design, the collection box is a box structure with an opening at the top, and the opening position corresponds to the channel of the connecting frame.

[0012] In this application, during actual use, the worker pushes the collection box along the U-shaped limiting frame to the bottom of the connecting frame. As the collection box moves, it touches the bottom of the sliding plate, thus pushing the sliding plate to move laterally. When the sliding plate moves, the outer shell will rotate accordingly, and the inner sealing plate will retract into the outer shell, thereby opening the connecting frame. After the collection box moves directly under the connecting frame, it can be fixed to the bottom of the connecting frame by the locking buckle, completing the assembly of the collection box. The pulse cleaning device is then activated to perform the cleaning operation, blowing away the dust particles attached to the surface of the filter bag. These particles will then enter the interior of the collection box through the ash hopper and the connecting frame for collection. After the cleaning is completed, the fixed state of the collection box is released and it is moved out. At this time, the outer shell will also be subjected to the force of the torsion spring, causing its inner sealing plate and sliding plate to reset together, thereby re-fitting with the upper sealing frame and achieving the closure of the connecting frame.

[0013] In this utility model, the bag dust collector for cement production can automatically open the channel when the collection box is pushed in and immediately close the connecting frame after it is moved out, through the outer shell, inner sealing plate and sliding plate, thereby facilitating the assembly operation of workers in actual use. In this utility model, the bag filter dust collector for cement production, through the sealing frame, can achieve a fit with the sealing frame when the outer shell and inner sealing plate are reset, thereby increasing its sealing effect; In this invention, when the collection box is assembled and fixed, it automatically connects with the ash hopper, eliminating the need for manual unsealing and thus facilitating operation by staff. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of a bag filter for cement production proposed in this utility model; Figure 2 This is a schematic diagram of the internal structure of a bag filter for cement production proposed in this utility model. Figure 3 This is a three-dimensional structural schematic diagram of a bag filter dust collector collection box for cement production proposed in this utility model. Figure 4 This is a three-dimensional structural schematic diagram of a connecting frame for a bag filter dust collector used in cement production, as proposed in this utility model. Figure 5 This is an exploded structural diagram of the connecting frame of a bag filter for cement production proposed in this utility model.

[0015] In the diagram: 1. Shell; 2. Air inlet; 3. Collection box; 4. Connecting frame; 5. Ash hopper; 6. Baffle; 7. Pulse cleaning device; 8. Air outlet; 9. Tube plate; 10. Filter bag; 11. Partition plate; 12. Handle; 13. Lock; 14. Roller; 15. Outer shell; 16. Inner sealing plate; 17. Torsion spring; 18. Slide plate; 19. Rectangular block; 20. Rectangular chute; 21. Sealing frame; 22. U-shaped limit frame. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] In one embodiment: Reference Figure 1-2 A baghouse dust collector includes: a shell 1, a dust hopper 5, a filter bag 10, a pulse cleaning device 7, and a collection box 3.

[0018] The interior of the casing 1 is divided into an upper clean air chamber and a lower dust chamber by a perforated plate 9. The perforated plate 9 is horizontally welded to the inner wall of the casing 1, and has multiple arrayed mounting holes on its surface, each with a rubber sealing ring embedded in it. An air inlet 2 is located on the side wall of the casing 1 in the dust chamber area, and an air outlet 8 is located on the top. The air outlet 8 is connected to an induced draft fan via a flange. The ash hopper 5 is welded to the bottom of the casing 1, and a connecting frame 4 is welded to the bottom of its conical structure. The connecting frame 4 is a hollow square frame, and a sealing frame 21 is welded to its inner wall.

[0019] Multiple filter bags 10 are sealed and snapped into place at their openings with the mounting holes of the tube sheet 9, with the bag body extending vertically into the dust chamber. Each filter bag 10 is fitted with a stainless steel cage inside, which is welded together with longitudinal ribs and annular hoops. The top of the cage is fixed to the tube sheet 9 by a threaded connector to prevent the filter bag 10 from collapsing.

[0020] The air tank of the pulse cleaning device 7 is fixed to the outer wall of the housing 1 by bolts, and is connected to multiple pulse valves in the clean air chamber through an air supply pipe. Each pulse valve outlet is connected to a blowpipe, and a nozzle is opened on the lower surface of the pipe body, with the nozzle axis coinciding with the center of the filter bag 10 opening. During cleaning, the pulse valves open according to a preset program, and compressed air is injected at high speed into the filter bag 10 through the nozzle, forming a reverse airflow that causes the filter bag 10 to expand instantaneously and peel off the surface dust.

[0021] refer to Figure 3-5 The collection box 3 has a top-opening box structure, four sets of rollers 14 are installed at the bottom, and handles 12 are welded to the side walls. The bottom of the connecting frame 4 is equipped with a U-shaped limiting bracket 22, the opening direction of which is consistent with the pushing direction of the collection box 3. The connecting frame 4 contains an outer shell 15, an inner sealing plate 16, and a sliding plate 18. The outer casing 15 is rotatably connected to the inner wall of the connecting frame 4 via a pin. The pin is fitted with a torsion spring 17. In its natural state, the torsion spring 17 drives the outer casing 15 to flip upwards until it fits against the sealing frame 21. The inner sealing plate 16 is slidably inserted into the inner cavity of the outer sealing shell 15; The top of the slide plate 18 is rotatably connected to the end of the inner sealing plate 16 via a pin, and rectangular blocks 19 are welded on both sides. The rectangular blocks 19 are embedded in the rectangular grooves 20 on the inner wall of the connecting frame 4 and slide laterally.

[0022] In actual use, the operator pushes the collection box 3 along the U-shaped limiting frame 22 into the lower part of the connecting frame 4. The side wall of the collection box 3 touches the bottom of the sliding plate 18, driving the sliding plate 18 to move laterally. The sliding plate 18 drives the outer shell 15 to flip downwards against the torque of the torsion spring 17 through the inner sealing plate 16, while the inner sealing plate 16 retracts into the inner cavity of the outer shell 15. When the collection box 3 is pushed to the limit position, the outer shell 15, the inner sealing plate 16 and the sliding plate 18 fully open the channel of the connecting frame 4. At this time, the collection box 3 and the connecting frame 4 are locked and fixed by the latch 13.

[0023] After the pulse cleaning device 7 is started, the dust peeled off from the surface of the filter bag 10 falls into the dust hopper 5 and enters the collection box 3 through the connecting frame 4. After the operation is completed, the lock 13 is released and the collection box 3 is pulled out. The torsion spring 17 drives the outer shell 15 to reset, which in turn drives the inner sealing plate 16 and the sliding plate 18 to automatically close the connecting frame 4 to prevent dust from overflowing.

[0024] This application can be used in the field of cement production, or in other fields applicable to this application.

[0025] In another embodiment: Reference Figure 3A bag filter dust collector for cement production is applied in the cement production field. A baffle 11 is installed at the air inlet 2 of the dust chamber to force the dust-laden gas to flow upward from the bottom of the filter bag 10, so as to avoid the high-speed airflow directly hitting the surface of the filter bag 10, thereby making the filtration load of the filter bag 10 uniform and extending its service life.

[0026] A rectangular opening is made on the side wall of the housing 1 in the dust chamber area, and a baffle 6 is slidably installed at the opening via a slide rail. A U-shaped handle is welded to the outer surface of the baffle 6, and a locking handle is provided at the bottom. Rotating the handle can cause the internal threaded rod to press against the frame of the housing 1 to achieve a sealed fixation.

[0027] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A baghouse dust collector for cement production, characterized in that, include: The shell (1) has a fixed tube sheet (9) inside, which divides the shell (1) into an upper clean air chamber and a lower dust chamber. The bottom of the shell (1) is fixedly connected to a dust hopper (5). An air inlet (2) is opened on the side wall of the dust chamber of the shell (1), and an air outlet (8) is opened on the top. Multiple filter bags (10) are vertically suspended on the tube sheet (9), with the bag openings sealed to the mounting holes of the tube sheet (9), and the bag bodies extending into the dust chamber; The pulse cleaning device (7) includes an air bag fixed to the outer wall of the housing (1), a pulse valve located in the clean air chamber, and a blow pipe connected to the pulse valve. The blow pipe is provided with a nozzle aligned with the bag opening of the filter bag (10). The connecting frame (4) is fixedly connected to the bottom of the ash hopper (5); The outer casing (15) is rotatably mounted on the inner wall of the connecting frame (4) via a pin. The inner sealing plate (16) is slidably inserted into the interior of the outer sealing shell (15) at one end; The slide plate (18) is rotatably connected to the end of the inner sealing plate (16) by a pin, and rectangular blocks (19) are fixed on both sides. Rectangular grooves (20) are opened on both sides of the inner wall of the connecting frame (4). The rectangular blocks (19) are slidably set in the rectangular grooves (20), and the bottom end of the slide plate (18) extends to the bottom of the connecting frame (4). A torsion spring (17) is sleeved on the pin of the outer casing (15) and is used to drive the outer casing (15) to reset. The collection box (3) is located directly below the connecting box (4).

2. The baghouse dust collector for cement production according to claim 1, characterized in that, The filter bag (10) is provided with a bag cage inside, and the top of the bag cage is fixedly connected to a tube sheet (9).

3. The baghouse dust collector for cement production according to claim 2, characterized in that, A baffle (6) is slidably provided on the side wall of the housing (1), and a partition (11) is fixedly provided in the dust chamber. The partition (11) is located between the air inlet (2) and the filter bag (10) and is used to guide the dust-laden gas from bottom to top through the filter bag (10).

4. The baghouse dust collector for cement production according to claim 1, characterized in that, The bottom of the collection box (3) is equipped with rollers (14), and a handle (12) is fixedly installed on the side wall.

5. The baghouse dust collector for cement production according to claim 4, characterized in that, The collection box (3) is provided with a latch (13) on its side wall, which is used to lock the collection box (3) to the connecting frame (4).

6. The baghouse dust collector for cement production according to claim 1, characterized in that, A sealing frame (21) is fixedly installed on the inner wall of the connecting frame (4). When the outer shell (15) is reset, the top of the outer shell (15) and the inner sealing plate (16) are sealed with the sealing frame (21).

7. The baghouse dust collector for cement production according to claim 1, characterized in that, A U-shaped limiting frame (22) is fixedly installed on the outer wall of the connecting frame (4). The U-shaped limiting frame (22) extends to the bottom of the connecting frame (4) to guide the collection box (3) to move in a straight line.

8. The baghouse dust collector for cement production according to claim 1, characterized in that, The collection box (3) is a box structure with an opening at the top, and the opening position corresponds to the channel of the connecting frame (4).

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