Ash removal device for cartridge filter

Abstract

The utility model provides an ash removal device for a cartridge dust remover, and relates to the technical field of dust removal components. The dust blowing device comprises a dust blowing pipe, an electric control air valve, an air storage tank, an air compressor and a controller, the dust blowing pipe, the electric control air valve, the air storage tank and the air compressor are sequentially connected through air pipes, and the electric control air valve is electrically connected with the controller; the dust blowing pipe is arranged on a pore plate for fixing the filter cartridge, the dust blowing pipe is positioned on the outer side of the filter cartridge, a dust gas chamber for accommodating dust gas and a gas purifying chamber for accommodating purified gas are separated by the pore plate, and the dust blowing pipe extends into the dust gas chamber and is parallel to the filter cartridge; one end, positioned in the dust gas chamber, of the dust blowing pipe is closed; a plurality of groups of outward air spraying holes are formed in the side wall of the dust blowing pipe; the air injection holes are distributed in the axial direction of the dust blowing pipe, and the air injection holes face outwards in the radial direction in a radial mode. The ash removal device for the filter cartridge dust remover is good in dust removal effect and capable of running automatically, and damage to the filter cartridge is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of dust collectors, and in particular to a dust cleaning device for a filter cartridge dust collector. Background Art

[0002] Compared with bag filter, cartridge filter has many outstanding advantages. However, due to the multi-pleated structure of the filter cartridge and the smaller shaking amplitude than the bag filter, its dust cleaning performance is not as good as that of the bag filter under the same filtration wind speed. This is the main disadvantage of the cartridge filter.

[0003] Existing cleaning methods for bag dust collectors include mechanical vibration cleaning, back-blowing cleaning, sonic cleaning, etc. Cartridge dust collectors generally use back-blowing cleaning, compressed air pulse cleaning, etc. Existing cleaning devices for cartridge dust collectors have problems such as low cleaning efficiency and easy damage to the cartridge. Utility Model Content

[0004] To this end, the utility model proposes a dust cleaning device for a cartridge dust collector to overcome the problems existing in the above prior art.

[0005] The technical solution of the utility model is as follows:

[0006] A dust cleaning device for a filter cartridge dust collector comprises a dust blowing pipe, an electric-controlled air valve, an air storage tank, an air compressor and a controller, wherein the dust blowing pipe, the electric-controlled air valve, the air storage tank and the air compressor are connected in sequence through an air pipe, and the electric-controlled air valve is electrically connected to the controller; the dust blowing pipe is arranged on a perforated plate on which the filter cartridge is fixed, the dust blowing pipe is located on the outside of the filter cartridge, the perforated plate separates a dust gas chamber containing dust gas from a clean gas chamber containing clean gas, the dust blowing pipe extends into the dust gas chamber and is parallel to the filter cartridge, the dust blowing pipe is closed at one end in the dust gas chamber and has a plurality of groups of outward-facing jet holes on the side wall; the jet holes are distributed along the axial direction of the dust blowing pipe, and the jet holes are oriented radially outward.

[0007] As a preference, the cleaning device for the filter cartridge dust collector also includes an electromagnetic pulse valve and an air nozzle, wherein both ends of the electromagnetic pulse valve are respectively connected to an air storage tank and an air nozzle through pipelines, the air nozzle is arranged above the filter cartridge and sprays air into the inside of the filter cartridge, and the electromagnetic pulse valve is electrically connected to the controller.

[0008] Preferably, the cleaning device for the cartridge dust collector further comprises a differential pressure sensor, the differential pressure sensor comprises two measuring heads, the measuring heads respectively measure the pressure of the dust chamber and the clean air chamber, and the differential pressure sensor is electrically connected to the controller.

[0009] Preferably, the cleaning device for the cartridge dust collector further comprises a U-tube differential pressure gauge, wherein two conduits of the U-tube differential pressure gauge are respectively connected to the dust chamber and the clean air chamber, and are used to measure the pressure difference between the dust chamber and the clean air chamber.

[0010] As a preferred embodiment, the gas storage tank is provided with a pressure sensor, and the pressure sensor and the air compressor are electrically connected to the controller respectively.

[0011] The working principle and beneficial effects of the utility model are:

[0012] The utility model provides a dust cleaning device for a filter cartridge dust collector. When the pressure difference between the dust chamber and the clean air chamber of the dust collector is too large and exceeds the set value, the dust cleaning is started under the action of the controller. During the dust cleaning, the electromagnetic pulse valve is opened, and the air nozzle blows pulse high-pressure air into the filter cartridge. At the same time, the dust blowing pipe blows air to the filter cartridge folds outside the filter cartridge. Under the comprehensive action, the dust attached to the outside of the filter cartridge is blown away. The dust cleaning device of the utility model has good dust blowing effect, high dust removal efficiency, and can reduce the frequency of dust removal operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 for Figure 1 A partial enlarged view of part A;

[0016] In the figure: 1. orifice plate; 2. dust blowing pipe; 21. air jet hole; 3. filter cartridge; 4. air nozzle; 5. pipeline; 6. air pipe. DETAILED DESCRIPTION

[0017] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Please refer to Figure 1 and Figure 2As shown in the content, this embodiment provides a dust cleaning device for a filter cartridge dust collector, which includes a dust blowing pipe 2, an electric control air valve, an air tank, an air compressor and a controller. The dust blowing pipe 2, the electric control air valve, the air tank and the air compressor are connected in sequence through an air pipe 6, and the electric control air valve is electrically connected to the controller. The dust blowing pipe 2 is arranged on a perforated plate 1 that fixes the filter cartridge 3. The dust blowing pipe 2 is located on the outside of the filter cartridge 3. The perforated plate 1 separates the dust gas chamber containing the dust gas from the clean gas chamber containing the clean gas. The dust blowing pipe 2 extends from the clean gas chamber into the dust gas chamber and is parallel to the filter cartridge 3. One end of the dust blowing pipe 2 in the dust gas chamber is closed and a plurality of groups of outward-facing jet holes 21 are opened on the side wall. The other end is located in the clean gas chamber and is connected to the electric control air valve through an air pipe 6. The jet holes 21 are distributed along the axial direction of the dust blowing pipe 2, and the direction of the jet holes 21 is radially outward.

[0019] A gas nozzle 4 for spraying high-pressure gas is also arranged above the filter cartridge 3, and the gas nozzle 4 is connected to the electromagnetic pulse valve and the gas storage tank in turn through a pipeline 5; the electromagnetic valve is electrically connected to the controller and receives an electrical signal from the controller to open or close.

[0020] If you need to realize program-controlled automatic dust cleaning, you can set a differential pressure sensor. The two measuring heads of the differential pressure sensor are set in the dust chamber and the clean chamber, respectively, to measure the pressure difference between the two. The pressure sensor is electrically connected to the controller, and the controller sets the threshold of the pressure difference between the two. When the threshold is exceeded, the controller sends an electrical signal to the electric control gas valve and the electromagnetic pulse valve to start dust cleaning.

[0021] When automatic dust cleaning is not required, a U-tube differential pressure gauge can be used. The two conduits of the U-tube differential pressure gauge are connected to the dust chamber and the clean air chamber respectively to measure the pressure difference between the clean air chamber and the dust chamber. When a large pressure difference is observed between the two, it means that the resistance to filtering dust is large and dust cleaning is required.

[0022] If you need to adjust the pressure of pulse jet gas and dust blowing pipe gas, you can set a pressure sensor on the gas tank, the pressure sensor and the controller are electrically connected, and the air compressor is also electrically connected to the controller. When the pressure in the gas tank is lower than the set value, the controller sends an electrical signal to the air compressor to run, and the air compressor continues to replenish gas in the gas tank. When the set value is reached, the controller sends an electrical signal to stop the air compressor to stop replenishing gas, so as to maintain the pressure of the gas in the gas tank within the set range.

[0023] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dust cleaning device for a cartridge dust collector, characterized in that: The utility model comprises a dust blowing pipe, an electric-controlled air valve, an air storage tank, an air compressor and a controller, wherein the dust blowing pipe, the electric-controlled air valve, the air storage tank and the air compressor are connected in sequence through an air pipe, and the electric-controlled air valve is electrically connected to the controller; the dust blowing pipe is arranged on a perforated plate on which a filter cartridge is fixed, the dust blowing pipe is located on the outside of the filter cartridge, the perforated plate separates a dust gas chamber containing dust gas from a clean gas chamber containing clean gas, the dust blowing pipe extends into the dust gas chamber and is parallel to the filter cartridge, the dust blowing pipe is located in the dust gas chamber and is closed at one end and has a plurality of groups of outward-facing jet holes on the side wall; the jet holes are distributed along the axial direction of the dust blowing pipe, and the jet holes are oriented radially outward.

2. The dust cleaning device for a cartridge dust collector according to claim 1, characterized in that: The cleaning device for the filter cartridge dust collector also includes an electromagnetic pulse valve and an air nozzle. The two ends of the electromagnetic pulse valve are respectively connected to the air storage tank and the air nozzle through pipelines. The air nozzle is arranged above the filter cartridge and sprays air into the filter cartridge. The electromagnetic pulse valve is electrically connected to the controller.

3. The dust cleaning device for a cartridge dust collector according to claim 2, characterized in that: The cleaning device for the cartridge dust collector also includes a differential pressure sensor, which includes two measuring heads, and the measuring heads respectively measure the pressure of the dust chamber and the clean air chamber, and the differential pressure sensor is electrically connected to the controller.

4. The dust cleaning device for a cartridge dust collector according to claim 2, characterized in that: The cleaning device for the cartridge dust collector also includes a U-tube differential pressure gauge, the two conduits of which are connected to the dust chamber and the clean air chamber respectively, and are used to measure the pressure difference between the dust chamber and the clean air chamber.

5. The dust cleaning device for a cartridge dust collector according to claim 2, characterized in that: The gas storage tank is provided with a pressure sensor, and the pressure sensor and the air compressor are electrically connected to the controller respectively.

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