Pulse cleaning bag filter

Abstract

The utility model discloses a pulse type dust cleaning cloth bag dust collector, including dust collector tank, the dust collector tank inboard wall upper end fixedly connected with the flower board, the flower board surface is arrayed distribution and is equipped with a plurality of round holes, the inboard of round hole is provided with the filter component, the dust collector tank front side upper end fixedly connected with the fixed frame, the fixed frame top is provided with dust cleaning subassembly, the dust collector tank bottom is fixedly connected with the hopper, the hopper bottom is fixedly connected with the collection box, the both ends of collection box are provided with two open and close components, the inside movable of collection box is provided with the collection box. The utility model discloses through open and close components and the cooperation of collection box, can separate the dust accumulation in collection box and the airflow in the upper hopper, prevent the dust that has been collected from the disturbance of dust collector internal airflow and raise again and reenter the circulation, solved the secondary dust problem that dust accumulation was disturbed by airflow.

Description

Technical Field

[0001] This utility model relates to the field of dust collector technology, specifically a pulse-jet bag filter dust collector. Background Technology

[0002] The pulse jet baghouse dust collector is a new type of high-efficiency pulse jet baghouse dust collector that is an improvement on the traditional baghouse dust collector. To further improve the pulse jet baghouse dust collector, the modified version retains its advantages such as high purification efficiency, large gas handling capacity, stable performance, convenient operation, long filter bag life, and low maintenance workload.

[0003] In the process of removing accumulated dust, existing pulse-jet baghouse dust collectors can cause dust that was originally effectively controlled to be resuspended in the air under the action of vibration, thus creating a phenomenon of secondary dust re-entrainment. The collected dust will be disturbed by the airflow, causing it to re-enter the dust collector and circulate inside. Summary of the Invention

[0004] The purpose of this invention is to provide a pulse-jet bag filter to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pulse-jet baghouse dust collector, comprising a dust collector housing, a tube sheet fixedly connected to the upper end of the inner wall of the dust collector housing, a plurality of circular holes arranged in an array on the surface of the tube sheet, filter components arranged inside the circular holes, a fixing frame fixedly connected to the upper end of the front side of the dust collector housing, a dust removal component arranged on the top surface of the fixing frame, a dust hopper fixedly connected to the bottom surface of the dust collector housing, a collection box fixedly connected to the bottom surface of the dust hopper, two opening and closing components arranged at both ends of the collection box, and a collection container movably arranged inside the collection box.

[0006] Preferably, the filter assembly includes a filter bag frame, a dust collector filter bag, and a venturi tube. The filter bag frame is fixedly connected to the top surface of the tube sheet, the dust collector filter bag is fixedly connected to the outside of the filter bag frame, and the venturi tube is disposed at the top of the inner side of the filter bag frame.

[0007] Preferably, the dust removal assembly includes an air tank, multiple electromagnetic pulse valves, multiple blowpipes, and multiple nozzles. The air tank is fixedly connected to the top surface of the mounting frame, the multiple electromagnetic pulse valves are fixedly connected to the top surface of the air tank, one end of each blowpipe is fixedly connected to the side of the multiple electromagnetic pulse valves, the end of each blowpipe away from the electromagnetic pulse valves is fixedly connected to the inner side wall of the dust collector housing, and the multiple nozzles are arranged in an array and fixedly connected to the bottom surface of the multiple blowpipes.

[0008] Preferably, the opening and closing assembly includes an electric telescopic rod, a U-shaped frame, a sliding rod, a movable plate, and a limiting frame. The electric telescopic rod is fixedly connected to the middle of the outer side of the collection box. The U-shaped frame is fixedly connected to the telescopic end of the electric telescopic rod. The sliding rod is rotatably connected to the inner side wall of the U-shaped frame. The top of the movable plate is hinged to the top of the inner side wall of the collection box. The limiting frame is fixedly connected to the side of the movable plate. A sliding groove is provided in the middle of the limiting frame, and the sliding rod is disposed inside the sliding groove.

[0009] Preferably, an air outlet pipe is fixedly connected to the top of the left side of the dust collector housing, and an air inlet pipe is fixedly connected to the top of the left side of the ash hopper.

[0010] Preferably, a support frame is fixedly connected to the bottom side of the dust collector housing, and a control box is fixedly connected to the middle of the front side of the dust collector housing.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This utility model uses an opening and closing assembly in conjunction with a collection box. An electric telescopic rod drives the U-shaped frame, sliding rod, and limiting frame to move, thereby controlling the opening and closing of the movable plate. When the movable plate is closed, it can isolate the dust in the collection box from the airflow in the ash hopper above, preventing the collected dust from being stirred up again and re-entering the circulation due to the disturbance of the airflow inside the dust collector. This solves the problem of secondary dust stirring caused by the disturbance of the airflow. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the filter assembly structure of this utility model; Figure 3 This is a schematic diagram of the dust removal component structure of this utility model; Figure 4 This is a schematic diagram of the opening and closing component structure of this utility model.

[0013] In the diagram: 1. Dust collector housing; 2. Tube sheet; 3. Filter assembly; 31. Filter bag frame; 32. Dust collector filter bag; 33. Venturi tube; 4. Fixing frame; 5. Cleaning assembly; 51. Air manifold; 52. Electromagnetic pulse valve; 53. Pulse jet pipe; 54. Nozzle; 6. Dust hopper; 7. Collection box; 8. Opening and closing assembly; 81. Electric telescopic rod; 82. U-shaped frame; 83. Slide rod; 84. Movable plate; 85. Limiting frame; 9. Collection box; 10. Air outlet pipe; 11. Air inlet pipe; 12. Support frame; 13. Control box. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-4 This utility model provides a technical solution: a pulse-jet bag filter, including a dust collector housing 1, a tube sheet 2 installed on the upper end of the inner side wall of the dust collector housing 1 by bolts, a plurality of round holes arranged in an array on the surface of the tube sheet 2, a filter assembly 3 installed inside the round holes, a fixing frame 4 installed on the upper end of the front side of the dust collector housing 1 by bolts, a dust cleaning assembly 5 installed on the top surface of the fixing frame 4, a dust hopper 6 installed on the bottom surface of the dust collector housing 1 by bolts, a collection box 7 installed on the bottom surface of the dust hopper 6 by bolts, two opening and closing components 8 installed at both ends of the collection box 7, and a collection box 9 movably installed on the inner surface of the collection box 7.

[0016] The filter assembly 3 includes a filter bag frame 31, a dust collector filter bag 32, and a venturi tube 33. The filter bag frame 31 is bolted to the top surface of the tube sheet 2. The dust collector filter bag 32 is bonded to the outside of the filter bag frame 31. The venturi tube 33 is installed at the top of the inner side of the filter bag frame 31.

[0017] The dust removal assembly 5 includes an air tank 51, multiple electromagnetic pulse valves 52, multiple blowpipes 53, and multiple nozzles 54. The air tank 51 is bolted to the top surface of the fixed frame 4. The multiple electromagnetic pulse valves 52 are threaded to the top surface of the air tank 51. One end of the multiple blowpipes 53 is threaded to the side of the multiple electromagnetic pulse valves 52. The end of the blowpipes 53 away from the electromagnetic pulse valves 52 is threaded to the inner wall of the dust collector housing 1. The multiple nozzles 54 are arranged in an array and threaded to the bottom surface of the multiple blowpipes 53.

[0018] The opening and closing assembly 8 includes an electric telescopic rod 81, a U-shaped frame 82, a sliding rod 83, a movable plate 84, and a limiting frame 85. The electric telescopic rod 81 is bolted to the middle of the outer side of the collection box 7. The U-shaped frame 82 is bolted to the telescopic end of the electric telescopic rod 81. The sliding rod 83 is rotatably connected to the inner wall of the U-shaped frame 82. The top of the movable plate 84 is hinged to the top of the inner wall of the collection box 7. The limiting frame 85 is bolted to the side of the movable plate 84. A sliding groove is provided in the middle of the limiting frame 85, and the sliding rod 83 is placed inside the sliding groove.

[0019] The exhaust pipe 10 is bolted to the top left side of the dust collector housing 1, and a fan is installed at the other end of the exhaust pipe 10. The inlet pipe 11 is bolted to the top left side of the ash hopper 6.

[0020] The support frame 12 is bolted to the bottom side of the dust collector housing 1, and the control box 13 is bolted to the middle of the front side of the dust collector housing 1. The control box 13 integrates switches and programmable controllers that are used in conjunction with various electronic devices, and is electrically connected to each electronic device through wires. It is powered by an external power supply to the entire device. Each switch can be operated to control the opening and closing of each electronic device. The above-mentioned electronic devices are all existing technologies, and their specific structures, working principles and electrical connections are not described in detail here.

[0021] Working Principle: During operation, dust-laden gas enters the ash hopper 6 through the inlet pipe 11. Under the negative pressure of the fan, the airflow rises, and large dust particles fall directly to the bottom of the ash hopper 6 due to gravity. Fine dust particles rise with the airflow and reach the filter assembly 3, where they are trapped on the outer surface of the dust collector filter bag 32. The purified gas then enters the upper chamber through the inside of the dust collector filter bag 32 and is finally discharged through the outlet pipe 10. As filtration time increases, the dust layer on the surface of the dust collector filter bag 32 thickens. The control box 13 controls the cleaning assembly 5 to operate, and the electromagnetic pulse valve 52 opens according to the set program. Compressed air in the air tank 51 is ejected through the blowpipe 53 and nozzle 54. The high-speed airflow induces several times the volume of surrounding air into the venturi tube 33 and rapidly rushes into the inside of the dust collector filter bag 32. The dust collector filter bag 32 expands and vibrates, causing the dust adhering to the surface of the filter bag to fall off and into the lower chamber. After the dust removal is completed, the control box 13 closes the dust removal assembly 5 and opens the electric telescopic rod 81 in the opening and closing assembly 8. The electric telescopic rod 81 drives the U-shaped frame to retract, so that the sliding rod 83 on the U-shaped frame 82 slides in the sliding groove of the limit frame 85, thereby driving the movable plate 84 to rotate around the hinge point, thereby controlling the opening of the movable plate 84. The dust on the movable plate 84 falls into the collection box 9. Before the dust removal assembly 5 is opened again, the opening and closing assembly 8 is in the closed state, so that the two movable plates 84 form a partition, which isolates the space in the collection box 9 from the airflow of the ash hopper 6 above, ensuring that the collected dust is in a static state and does not flow back with the airflow. When the collection box 9 is full, due to the blocking effect of the movable plate 84, the collection box 9 can be pulled out for emptying and cleaning without stopping the machine or affecting the airflow above. This utility model has the advantages of being easy to use and having good performance.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pulse-jet baghouse dust collector, comprising a dust collector housing (1), characterized in that: The dust collector housing (1) has a tube sheet (2) fixedly connected to the upper end of the inner side wall. The surface of the tube sheet (2) has multiple round holes arranged in an array. A filter assembly (3) is provided inside the round holes. A fixing frame (4) is fixedly connected to the upper end of the front side of the dust collector housing (1). A dust removal assembly (5) is provided on the top surface of the fixing frame (4). A dust hopper (6) is fixedly connected to the bottom surface of the dust collector housing (1). A collection box (7) is fixedly connected to the bottom surface of the dust hopper (6). Two opening and closing components (8) are provided at both ends of the collection box (7). A collection box (9) is movably arranged inside the collection box (7).

2. The pulse-jet bag filter dust collector according to claim 1, characterized in that: The filter assembly (3) includes a filter bag frame (31), a dust removal filter bag (32), and a venturi tube (33). The filter bag frame (31) is fixedly connected to the top surface of the tube sheet (2), the dust removal filter bag (32) is fixedly connected to the outside of the filter bag frame (31), and the venturi tube (33) is located at the top of the inner side of the filter bag frame (31).

3. The pulse-jet baghouse dust collector according to claim 1, characterized in that: The dust removal assembly (5) includes an air tank (51), multiple electromagnetic pulse valves (52), multiple blow pipes (53), and multiple nozzles (54). The air tank (51) is fixedly connected to the top surface of the mounting frame (4). The multiple electromagnetic pulse valves (52) are fixedly connected to the top surface of the air tank (51). One end of the multiple blow pipes (53) is fixedly connected to the side of the multiple electromagnetic pulse valves (52). The end of the blow pipe (53) away from the electromagnetic pulse valves (52) is fixedly connected to the inner wall of the dust collector housing (1). The multiple nozzles (54) are arranged in an array and fixedly connected to the bottom surface of the multiple blow pipes (53).

4. The pulse-jet bag filter dust collector according to claim 1, characterized in that: The opening and closing assembly (8) includes an electric telescopic rod (81), a U-shaped frame (82), a sliding rod (83), a movable plate (84), and a limiting frame (85). The electric telescopic rod (81) is fixedly connected to the middle of the outer side of the collection box (7). The U-shaped frame (82) is fixedly connected to the telescopic end of the electric telescopic rod (81). The sliding rod (83) is rotatably connected to the inner side wall of the U-shaped frame (82). The top of the movable plate (84) is hinged to the top of the inner side wall of the collection box (7). The limiting frame (85) is fixedly connected to the side of the movable plate (84). A sliding groove is provided in the middle of the limiting frame (85), and the sliding rod (83) is located inside the sliding groove.

5. The pulse-jet baghouse dust collector according to claim 1, characterized in that: An air outlet pipe (10) is fixedly connected to the top of the left side of the dust collector housing (1), and an air inlet pipe (11) is fixedly connected to the top of the left side of the ash hopper (6).

6. The pulse-jet baghouse dust collector according to claim 1, characterized in that: A support frame (12) is fixedly connected to the bottom side of the dust collector housing (1), and a control box (13) is fixedly connected to the middle of the front side of the dust collector housing (1).

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