Dust collecting equipment for dust striking opening of powder tank

Abstract

The utility model is applicable to the field of dust collection equipment, and provides dust collection equipment for a dust striking opening of a powder tank, which comprises a cyclone dust removal device and a cloth bag type dust removal device which are connected through a first exhaust pipe, a plurality of compartments and a plurality of pulse pipelines are arranged in the cloth bag type dust removal device, and dust removal cloth bags are arranged in the compartments; the pulse pipeline is connected with a gas cylinder through a gas check valve; the gas cylinder is connected with a compressor through a pipeline; a plurality of air supply pipelines corresponding to the dust collecting bags are arranged at the bottom of each pulse pipeline, and one-way locking mechanisms are arranged at the bottoms of the air supply pipelines; the one-way locking mechanism comprises a shell fixed to the bottom of the air supply pipeline, an elastic piston capable of moving up and down is arranged in the shell, the elastic piston can move downwards under pushing of airflow, and the elastic piston automatically resets when no airflow exists. Therefore, the device can effectively prevent dust from being accumulated in the pulse pipeline and the air supply pipeline; dust is prevented from flowing backwards, and the blockage problem of the pulse pipeline is avoided.

Description

TECHNICAL FIELD

[0001] The utility model is suitable for dust collecting equipment field, provide a kind of dust collecting equipment for powder tank to knock ash hole. BACKGROUND

[0002] In the operation process of powder tank, knock ash hole is the key position for discharging the powder accumulated in the tank bottom. Due to the influence of airflow disturbance and material flow when the powder is discharged by knock ash hole, a large amount of dust is often generated. These dusts mainly come from the friction of powder with tank wall during movement, impact when dropping and carrying of airflow, etc., resulting in the suspension of powder particles in the air, and further affecting the surrounding environment and the health of operators.

[0003] At present, the commonly used dust collecting equipment for powder tank mainly includes bag-type dust collector and cyclone dust collector. The bag-type dust collector captures the dust suspended in the airflow on the filter bag through the physical action of filter material, and regularly performs blowback dust cleaning to restore the filtering efficiency. The cyclone dust collector separates the dust out through the rotational motion of airflow by using the principle of centrifugal force, to achieve the purpose of dust collection. These devices play an important role in dust control, effectively reducing the pollution of dust to the environment.

[0004] However, the existing dust collecting equipment still has some deficiencies in actual application. Especially, the pulse airflow nozzle is easy to be blocked due to the deposition of dust during the working process, resulting in the decrease of the strength of pulse airflow. This blocking phenomenon not only reduces the dust cleaning efficiency, but also may cause frequent maintenance of the equipment, increasing the operating cost. CONTENT OF THE UTILITY MODEL

[0005] In view of the above defects, the purpose of the utility model is to provide a dust collecting equipment for powder tank to knock ash hole, to solve the problems raised in the background art. The device comprises a cyclone dust removal device and a bag-type dust removal device connected by a first exhaust pipe; the bag-type dust removal device is internally provided with a plurality of compartments divided by a plurality of partitions, and each compartment is internally provided with a dust removal bag.

[0006] The bag-type dust removal device is internally provided with a plurality of pulse ducts, and the pulse ducts are connected with gas cylinders through closed valves. The gas cylinders are installed outside the bag-type dust removal device, and are connected with a compressor through a duct. The bottom of each pulse duct is provided with a plurality of gas supply ducts corresponding to the dust removal bags, and the bottom of the gas supply duct is fixedly connected with a one-way locking mechanism.

[0007] The one-way locking mechanism comprises a housing fixedly connected to the bottom of the gas supply duct, and the housing is internally provided with an elastic piston movable up and down. The elastic piston can move downward under the push of airflow, and can automatically reset when there is no airflow.

[0008] Further, the cyclone dust removal device comprises a volute and a cone cylinder installed at the bottom of the volute, the volute and the cone cylinder are hollow and communicated, and the volute is provided with a first air inlet.

[0009] Further, the cloth bag type dust removal device is provided with a second air inlet, an air outlet and a dust outlet at the bottom of the device.

[0010] Further, the inside of the shell is fixedly connected with a support body, the bottom of the support body is fixedly connected with a limiting rod, the limiting rod is hollow and provided with a limiting groove vertically arranged on the limiting rod, the inside of the limiting rod is sleeved with an extension rod, the extension rod is provided with a limiting block matched with the limiting groove, the limiting block can slide up and down in the limiting groove, and the bottom of the extension rod is fixedly connected with an elastic piston.

[0011] Further, the outer periphery of the elastic piston is provided with a rubber ring abutting against the inner side of the shell.

[0012] Further, the bottom of the partition plate is fixedly connected with a bottom filter screen.

[0013] Further, the air outlet of the cloth bag type dust removal device is connected with an air pump through a second air outlet pipe.

[0014] Therefore, the device can realize multi-stage dust removal by combining the cyclone dust removal device and the cloth bag type dust removal device, effectively improve the dust removal efficiency and reduce the dust concentration of the emission. The design of the pulse pipe and the closed valve realizes the timing and quantitative dust removal of the dust removal cloth bag, and ensures the continuous and efficient operation of the dust removal cloth bag. The design of the one-way locking mechanism, especially the combination of the elastic piston and the limiting rod and the extension rod, effectively prevents the accumulation of dust in the pulse pipe and the air conveying pipe; when there is no air flow, the elastic piston resets automatically, prevents dust backflow and avoids the blockage of the pulse pipe. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the device;

[0016] Figure 2 It is a structural schematic diagram of the inside of the cyclone dust removal device;

[0017] Figure 3 It is a structural schematic diagram of the inside of the cloth bag type dust removal device;

[0018] Figure 4 It is Figure 3 the enlarged view of A part of the device;

[0019] Figure 5 It is Figure 4 the enlarged view of B part of the device;

[0020] In the figure: 1 - cyclone dust removal device; 10 - first exhaust pipe; 11 - volute; 111 - first air inlet; 112 - inner cylinder; 113 - air outlet; 12 - cone cylinder; 13 - ash discharge port; 2 - bag type dust removal device; 20 - one-way locking mechanism; 201 - shell; 202 - support body; 203 - limiting rod; 2031 - limiting groove; 204 - telescopic rod; 2041 - limiting block; 205 - elastic piston; 206 - return spring; 207 - rubber ring; 21 - dust removal bag; 22 - partition plate; 23 - bottom filter screen; 24 - ash outlet; 25 - second air inlet; 26 - second exhaust pipe; 3 - gas cylinder; 4 - air closing valve; 5 - pulse pipeline; 51 - air feeding pipeline; 6 - air pump. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application.

[0022] It should be noted that, in the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] At the same time, in the description of the present application, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0025] Reference Figures 1-5The utility model discloses a dust collecting equipment is hit to powder tank, including cyclone dust collector 1 and cloth bag type dust collector 2, cyclone dust collector 1 is connected cloth bag type dust collector 2 through first exhaust pipe 10, and the specific cyclone dust collector 1 includes volute 11 and the conical cylinder 12 of fixed mounting at volute 11 bottom, and volute 11 and conical cylinder 12 inside hollow and communicate, and volute 11 is equipped with first air inlet 111, first air inlet 111 is connected with the pipeline corresponding with dust source, and dust can be inhaled into the air inlet 111 of cyclone dust collector 1, and the top of volute 11 is equipped with air outlet 113, and the inner top of volute 11 is fixedly connected with the inner cylinder 112 corresponding with air outlet 113, and the end of inner cylinder 112 away from air outlet 113 extends to conical cylinder 12, and the inside of conical cylinder 12 is equipped with ash unloading port 13.

[0026] Cloth bag type dust collector 2 is equipped with second air inlet 25, exhaust port and ash outlet 24 at the bottom of device, and the inside of cloth bag type dust collector 2 is equipped with a plurality of baffle 22, and baffle 22 divides the inside of device into a plurality of compartments, and dust removal cloth bag 21 is installed in each compartment.

[0027] The inside of cloth bag type dust collector 2 is equipped with a plurality of pulse ducts 5, and pulse duct 5 is connected with gas cylinder 3 through closed valve 4, and gas cylinder 3 is installed outside cloth bag type dust collector 2, and is connected with compressor through pipeline, and compressor can continuously supplement compressed air into gas cylinder 3, and the opening and closing control of closed valve 4 can realize the delivery of gas flow into pulse duct 5, to reach the effect of pulse.

[0028] The bottom of each pulse duct 5 is equipped with a plurality of gas delivery ducts 51 corresponding to dust removal cloth bag 21, and specifically, gas delivery duct 51 is vertically downward, and corresponds to dust removal cloth bag 21 one by one. The bottom of gas delivery duct 51 is fixedly connected with one-way locking mechanism 20.

[0029] One-way locking mechanism 20 includes shell 201 fixedly connected at the bottom of gas delivery duct 51, and the inside of shell 201 is equipped with elastic piston 205 that can move up and down, and elastic piston 205 can move downward under the push of gas flow, and can reset automatically when there is no gas flow.

[0030] Preferably, the inside of shell 201 is fixedly connected with support body 202, the bottom of support body is fixedly connected with limiting rod 203, limiting rod 203 is hollow inside, and limiting groove 2031 is vertically arranged on limiting rod 203, telescopic rod 204 is sleeved in the inside of limiting rod 203, limiting block 2041 matched with limiting groove 2031 is arranged on telescopic rod 204, limiting block 2041 can slide up and down in limiting groove 2031, and the bottom of telescopic rod 204 is fixedly connected with elastic piston 205.

[0031] Preferably, the outer periphery of the elastic piston 205 is provided with a rubber ring 207 abutting against the inner side of the shell 201. The rubber ring 207 on the outer periphery of the elastic piston 205 further enhances the sealing effect, ensuring smooth injection of high-pressure gas flow and effective removal of dust.

[0032] Preferably, the bottom of the partition plate 22 is fixedly connected with a bottom filter screen 23. The filter screen 23 can filter part of light and small sundries in the gas flow, reducing the burden on the dust cloth bag 21 and prolonging its service life.

[0033] Preferably, the exhaust port of the cloth bag type dust removal device 2 is connected with the air pump 6 through the second exhaust pipe 26.

[0034] In actual use, dust is connected to the first air inlet 111 of the cyclone dust removal device 1 through the pipeline, and is sucked into the hollow structure connected inside the volute 11 and the cone cylinder 12. In the volute 11, dust and gas are subjected to centrifugal force due to rotation, and heavy dust particles are thrown to the inner wall of the volute and fall along the cone cylinder 12, and are discharged through the ash discharge port 13. Clean gas is discharged from the gas outlet 113 at the top of the volute 11 and the inner cylinder 112, and enters the first exhaust pipe 10. The gas preliminarily treated by the cyclone dust removal device enters the second air inlet 25 of the cloth bag type dust removal device 2 through the first exhaust pipe 10. The gas enters several compartments divided by the partition plate 22, and each compartment is provided with a dust cloth bag 21 to further filter out small dust particles. The filtered gas is discharged through the exhaust port of the cloth bag type dust removal device 2.

[0035] In this process, the compressor continuously supplements compressed air into the gas cylinder 3. When the dust cloth bag 21 accumulates a certain amount of dust on the surface, the compressed air in the gas cylinder 3 is released into the pulse pipeline 5 by controlling the opening and closing of the closed valve 4. The gas flow in the pulse pipeline 5 enters the one-way locking mechanism 20 through the air feeding pipeline 51, pushes the elastic piston 205 to move downward, and instantaneously sprays high-pressure gas flow to the dust cloth bag 21, so that the dust on the bag falls off, achieving the effect of dust removal.

[0036] Therefore, the device can realize multi-stage dust removal by combining the cyclone dust removal device and the cloth bag type dust removal device, effectively improve the dust removal efficiency, and reduce the dust concentration of the exhaust. The design of the pulse pipeline 5 and the closed valve 4 realizes the timing and quantitative dust removal of the dust cloth bag 21, ensuring the continuous and efficient operation of the dust cloth bag. The design of the one-way locking mechanism 20, especially the combination of the elastic piston 205, the limiting rod 203 and the telescopic rod 204, effectively prevents the accumulation of dust in the pulse pipeline 5 and the air feeding pipeline 51; when there is no gas flow, the elastic piston 205 resets itself, preventing backflow of dust and avoiding blockage of the pulse pipeline.

[0037] Of course, the utility model can also have other various embodiments, and the skilled in the art can make various corresponding changes and deformations according to the utility model without departing from the spirit and essence of the utility model, but these corresponding changes and deformations should all belong to the protection scope of the claims attached to the utility model.

Claims

1. A dusting and dust collecting apparatus for a powder tank, characterized by comprising: It comprises a cyclone dust removal device (1) and a bag type dust removal device (2) connected through a first exhaust pipe (10); the bag type dust removal device (2) is internally provided with a plurality of compartments divided by a plurality of partitions (22), and each compartment is internally provided with a dust removal bag (21); The bag type dust removal device (2) is internally provided with a plurality of pulse pipes (5), the pulse pipes (5) are connected with gas cylinders (3) through closed valves (4), the gas cylinders (3) are externally mounted on the bag type dust removal device (2) and are connected with compressors through pipes; the bottom of each pulse pipe (5) is provided with a plurality of gas feeding pipes (51) corresponding to the dust removal bags (21) one by one, and the bottom of each gas feeding pipe (51) is fixedly connected with a one-way locking mechanism (20). The one-way locking mechanism (20) comprises a housing (201) fixedly connected to the bottom of the gas feeding pipe (51), and the housing (201) is internally provided with an elastic piston (205) capable of moving up and down; the elastic piston (205) can move downward under the push of air flow, and can reset itself when there is no air flow.

2. The dusting and dust collection apparatus for a powder tank according to claim 1, wherein The cyclone dust removal device (1) comprises a volute (11) and a cone cylinder (12) mounted at the bottom of the volute (11), the volute (11) and the cone cylinder (12) are hollow and communicate with each other, and the volute (11) is provided with a first air inlet (111); the top of the volute (11) is provided with an air outlet (113), the inner top of the volute (11) is provided with an inner cylinder (112) corresponding to the air outlet (113), and the inside of the cone cylinder (12) is provided with a dust discharging port (13).

3. The dusting apparatus according to claim 1, wherein The bag type dust removal device (2) is provided with a second air inlet (25), an exhaust port and a dust discharging port (24) at the bottom of the device.

4. The dusting apparatus according to claim 1, wherein The inside of the housing (201) is fixedly connected with a support body (202), the bottom of the support body is fixedly connected with a limiting rod (203), the limiting rod (203) is hollow and vertically provided with a limiting groove (2031), the inside of the limiting rod (203) is sleeved with a telescopic rod (204), the telescopic rod (204) is provided with a limiting block (2041) matched with the limiting groove (2031), the limiting block (2041) can slide up and down in the limiting groove (2031), and the bottom of the telescopic rod (204) is fixedly connected with the elastic piston (205).

5. The dusting device according to claim 4, characterized in that The outer periphery of the elastic piston (205) is provided with a rubber ring (207) abutting against the inner side of the housing (201).

6. The dusting apparatus according to claim 1, wherein The bottom of the partition (22) is fixedly connected with a bottom filter screen (23).

7. The dusting apparatus according to claim 1, wherein The exhaust port of the bag type dust removal device (2) is connected with a gas pump (6) through a second exhaust pipe (26).

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