Mining ultralow-emission bag-type dust collector

Abstract

The utility model provides a mining ultra-low emission bag-type dust remover, which relates to the technical field of dust removers, and comprises a base, a dust collecting hopper, a dust removing box, a blowing gas path and a sucking pump, the base, the dust collecting hopper and the dust removing box are sequentially arranged from bottom to top, and the dust collecting hopper is communicated with the inside of the dust removing box; the dust removal box is divided into an upper air purification chamber and a lower dust air chamber, the air purification chamber and the dust air chamber are separated by a pore plate, a filter cloth bag is inserted in the pore plate, a filter bag cage is lined in the filter cloth bag, the filter cloth bag is tightly pressed in the pore plate in an airtight manner and extends into the dust air chamber, and the air purification chamber is connected with the air extracting pump through a pipeline; an ash discharge port is formed in the bottom of the ash collecting hopper, an air inlet is formed in the side face of the ash collecting hopper, a spray point support is arranged in the air inlet and made of insulating materials, a spray point is arranged in the center of the spray point support, and an electrode plate is arranged on the inner side of the ash collecting hopper. The mining ultra-low emission bag-type dust remover disclosed by the utility model has an excellent dust removal effect on dust generated in a mine field, and can achieve ultra-low emission.

Description

Technical Field

[0001] The utility model relates to the technical field of dust collectors, in particular to a mine-used ultra-low emission bag dust collector. Background Art

[0002] Dust collectors in the mining field are divided into wet dust collectors and dry dust collectors, and bag dust collectors are often used for dry dust collectors. Bag dust collectors are more and more widely used in the field of mine dust collectors due to their high dust removal efficiency and less maintenance work required.

[0003] In the mining field, various process equipment usually generates a certain amount of dust. To make the discharged waste gas meet the national standards, high-efficiency dust removal equipment is needed. Although the dust removal efficiency of bag dust collectors is already very high, the emission requirements are becoming increasingly strict, and there is still room for further improvement in the dust removal efficiency of existing bag dust collectors. Content of the Utility Model

[0004] Therefore, the utility model provides a mine-used ultra-low emission bag dust collector, which is superior to existing bag dust collectors in terms of higher dust removal efficiency and lower emissions.

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

[0006] A mine-used ultra-low emission bag dust collector includes a base, a dust collecting hopper, a dust removal box, a blowing air path and an air extraction pump. The base, the dust collecting hopper and the dust removal box are arranged in sequence from bottom to top, and the dust collecting hopper and the dust removal box are internally communicated;

[0007] The dust removal box is divided into a clean gas chamber in the upper part and a dirty gas chamber in the lower part. The clean gas chamber and the dirty gas chamber are separated by an orifice plate. Filter bags are inserted into the orifice plate. A filter bag cage is lined inside the filter bag to tightly press the filter bag airtightly in the orifice plate. The filter bag extends into the dirty gas chamber. The clean gas chamber is connected to the air extraction pump through a pipeline;

[0008] The bottom of the dust collecting hopper is provided with an ash discharge port, and the side is provided with an air inlet and a maintenance port. A discharge needle support is arranged inside the air inlet. The discharge needle support is made of insulating material. A discharge needle is arranged at the center of the discharge needle support. An electrode plate is arranged inside the dust collecting hopper.

[0009] As a preference, the blowing air path includes a nozzle, an air pipe, an electric control air valve, a gas storage tank and a compressor. The nozzle is arranged in the clean gas chamber. The nozzle is connected to the electric control air valve and the gas storage tank in sequence through the air pipe. The compressor provides compressed air to the gas storage tank.

[0010] As a preference, the electrode plate is a nickel plate. The electrode plate is arranged overhead inside the dust collecting hopper. The discharge needle and the electrode plate are respectively electrically connected to an electrostatic generator.

[0011] As an optimization, the electrode plate is still a nickel plate, but an insulating layer is provided between the electrode plate and the dust collecting hopper, and the discharge needle and the electrode plate are respectively electrically connected to an electrostatic generator.

[0012] The working principle and beneficial effects of the present utility model are as follows:

[0013] The mine-used ultra-low emission bag filter provided by the present utility model has good adaptability to metal and non-metal mining fields, especially has excellent dust treatment effect in mines for mining metal ores. The dust in such mines is easy to be charged, and the present utility model comprehensively utilizes static electricity and bag filtration to improve the filtration efficiency and achieve ultra-low emissions. Description of the Drawings

[0014] The following further describes the present utility model in detail with reference to the drawings and specific embodiments.

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the structure of the dust collecting hopper integrated with the discharge needle;

[0017] Figure 3 is a schematic diagram of the structure of the dust collecting hopper housing;

[0018] In the figure: 1, dust removal box; 2, dust collecting hopper; 21, housing; 211, steel plate; 212, electrode plate; 22, air inlet; 221, discharge needle support; 222, discharge needle; 23, ash discharge port; 24, maintenance port; 3, base; 4, pipeline. Specific Embodiments

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0020] Please refer to Figures 1 to 3 the content shown. This embodiment provides a mine-used ultra-low emission bag filter, which includes a base 3, a dust collecting hopper 2, a dust removal box 1, a blowing air path and an air extraction pump. The base 3, the dust collecting hopper 2, and the dust removal box 1 are arranged in sequence from bottom to top, and the inside of the dust collecting hopper 2 and the dust removal box 1 is in communication.

[0021] The dust removal box 1 is divided into a clean gas chamber in the upper part and a dust gas chamber in the lower part. The clean gas chamber and the dust gas chamber are separated by an orifice plate. Filter bags are inserted into the orifice plate, and filter bag cages are lined inside the filter bags. The filter bags are airtightly pressed in the orifice plate and extend into the dust gas chamber. The clean gas chamber is connected to an air extraction pump through a pipeline 4.

[0022] The bottom of the ash collection hopper 2 is provided with an ash discharge port 23, and the side is provided with an air inlet 22 and a maintenance port 24. A discharge needle support 221 is arranged inside the air inlet 22. The discharge needle support 221 is made of insulating material, and a discharge needle 222 is arranged at the center of the discharge needle support 221. An electrode plate 212 is arranged on the inner side of the shell 21 of the ash collection hopper 2. The electrode plate 212 can use electrode materials such as nickel plates. One setting method of the electrode plate 212 is to be arranged above the outermost steel plate 211 of the shell 21 in a suspended manner, and another setting method is to be compounded with the shell 21 to form an integral structure. At this time, an insulating layer is arranged between the outermost steel plate 211 and the electrode plate 212. In addition, the outermost steel plate 211 can also act as the electrode plate. The discharge needle 222 and the electrode plate 212 are respectively electrically connected to an electrostatic generator, and the discharge needle 222 and the electrode plate 212 carry opposite charges.

[0023] The jet blowing air path includes a nozzle, an air pipe, an electric control air valve, a gas storage tank and a compressor. The nozzle is arranged in the clean gas chamber and is connected to the electric control air valve and the gas storage tank in sequence through the air pipe. The compressor provides compressed air to the gas storage tank. The jet blowing air path is used to blow air into the filter bag for dust cleaning. The electric control air valve can use a pulse air valve, and the electric control air valve is controlled by a controller to open and close for controlling dust cleaning. The compressor acts as a gas source to supplement air to the gas storage tank to maintain the pressure of the gas storage tank.

[0024] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An ultra-low emission bag dust collector for mining, characterized in that: It includes a base, an ash hopper, a dust removal box, a blowing air path and an air pump. The base, the ash hopper and the dust removal box are arranged in sequence from bottom to top, and the ash hopper and the dust removal box are internally connected; The dust removal box is divided into an upper clean air chamber and a lower dust air chamber, the clean air chamber and the dust air chamber are separated by a perforated plate, a filter bag is inserted in the perforated plate, a filter bag cage is lined inside the filter bag, the filter bag is airtightly pressed in the perforated plate, the filter bag extends into the dust air chamber, and the clean air chamber is connected to the vacuum pump through a pipeline; The ash collecting hopper has an ash discharge port at the bottom and an air inlet at the side. A discharge needle bracket is arranged in the air inlet. The discharge needle bracket is made of insulating material. A discharge needle is arranged at the center of the discharge needle bracket. An electrode plate is arranged inside the ash collecting hopper.

2. The ultra-low emission bag filter according to claim 1 is characterized in that: The injection air circuit includes a nozzle, an air pipe, an electric-controlled air valve, an air storage tank and an air compressor. The nozzle is arranged in the clean air chamber. The nozzle is connected to the electric-controlled air valve and the air storage tank in sequence through the air pipe. The air compressor provides compressed air to the air storage tank.

3. The ultra-low emission bag filter according to claim 2 is characterized in that: The electrode plate is a nickel plate, and is suspended inside the ash collecting hopper. The discharge needle and the electrode plate are electrically connected to the electrostatic generator respectively.

4. The ultra-low emission bag filter according to claim 2 is characterized in that: The electrode plate is a nickel plate, an insulating layer is arranged between the electrode plate and the ash collecting hopper, and the discharge needle and the electrode plate are electrically connected to the electrostatic generator respectively.

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