CN219091536U

CN219091536U - Plasma spraying dust treatment device

Info

Publication number: CN219091536U
Application number: CN202223494247.2U
Authority: CN
Inventors: 钱丽萍; 周浩; 顾芬; 董志超; 葛飞
Original assignee: JIANGSU HUIJIN ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Current assignee: JIANGSU HUIJIN ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-05-30
Anticipated expiration: 2032-12-27

Abstract

The utility model discloses a plasma spraying dust treatment device, which belongs to the field of waste gas treatment and comprises a pretreatment device, a dust removal device, a plasma purifier, a fan and a chimney, wherein the pretreatment device, the dust removal device, the plasma purifier, the fan and the chimney are sequentially connected through pipelines along the waste gas treatment sequence, and a plurality of filter plates are arranged in the pretreatment device along the waste gas circulation direction at intervals. The utility model has scientific structural design, can purify dust, oil mist and harmful gas generated by plasma spraying, simultaneously reduces equipment maintenance frequency and reduces maintenance cost.

Description

Plasma spraying dust treatment device

Technical Field

The utility model belongs to the field of waste gas treatment, and particularly relates to a plasma spraying dust treatment device.

Background

The plasma spraying technology is a method of heating ceramic, alloy, metal and other materials to a molten or semi-molten state by using a plasma arc driven by direct current as a heat source, spraying the materials to the surface of a pretreated workpiece at a high speed to form a firmly attached surface layer, and generating a large amount of dust, a small amount of oil mist and a part of benzene, TVOC and other volatile organic matters in the spraying process, so that waste gas generated by plasma spraying equipment is required to be filtered and then discharged after reaching standards. The plasma spraying dust commonly used in the market is generally filtered by a cloth bag filter, but the filtering effect is not ideal, and the standard of the discharged gas is not up to standard.

The Chinese patent of patent number 201920962102.X discloses an exhaust gas purifying device of plasma spraying equipment, which comprises a dust removing device, wherein the dust removing device is connected with a cyclone dust collector through a first exhaust pipe, a settling tank is arranged at the bottom of the cyclone dust collector, and a detachable end cover is arranged at the top of the settling tank; the cyclone dust collector is connected with the plasma purifier through the second exhaust pipe, and the plasma purifier is communicated with the outside through the third exhaust pipe; the dust removing device comprises a shell, wherein an air inlet is formed in the outer side of the shell, an air filter cylinder is arranged in the shell, an air injection pipeline is arranged on the inner side wall of the shell, an air injection port is formed in the air injection pipeline, the air injection pipeline is connected with a compressed air source through an air inlet formed in the outer side of the shell, a dust collecting box is arranged at the bottom of the shell, and a sealing door is further arranged on one side of the dust collecting box; the device carries out multiple filtration to dust and gas discharged by plasma spraying equipment, can better realize the filter effect, makes the filter effect ideal, and the discharged gas reaches the standard.

The technical scheme provided by the patent has the defects that firstly, in the structure, a so-called dust removing device is a filter cartridge dust remover from the structural view, and the filter cartridge dust remover is arranged in front of a cyclone dust remover, and large particles and tiny pellets exist in dust and directly enter the filter cartridge dust remover to easily cause the breakage of a filter cartridge, so that the service cycle of the filter cartridge is short, and the dust removing effect is reduced; in addition, part of plasma spraying dust gas contains a small amount of oil mist, the oil mist has higher adhesiveness, after entering the dust remover for a long time, the oil mist detention phenomenon occurs, the overhauling period of the dust remover is shortened, the overhauling of the dust remover is complicated, the maintenance cost is increased, and the defects are to be improved.

Disclosure of Invention

The utility model aims to overcome the defects of the technology, and provides a plasma spraying dust treatment device which is scientific in structural design, can purify dust, oil mist and harmful gas generated by plasma spraying, and simultaneously reduces equipment maintenance frequency and maintenance cost.

In order to achieve the aim of the utility model, the utility model adopts the following technical scheme:

the utility model provides a plasma spraying dust treatment device, its characterized in that includes along exhaust-gas treatment order loop through pretreatment device, dust collector, plasma purifier, fan and the chimney of pipe connection, pretreatment device includes the casing, the inside interval of following the exhaust-gas flow direction of casing is provided with a plurality of filter plates.

The utility model is further improved in that the filter plate is a wire mesh plate.

The utility model is further improved in that the filter plate is in sliding connection with the inner wall of the shell through the sliding rail, and the side wall of the shell corresponding to the sliding direction of the filter plate is provided with the access door, so that the filter plate can be conveniently detached and cleaned regularly, and the filter plate is prevented from blocking to cause unsmooth air intake after long-time use.

The dust removing device comprises the cyclone dust collector and the filter cartridge dust collector which are sequentially connected, and the cyclone dust collector is arranged firstly to filter large particles and small pellets in dust, so that the filter cartridge of the filter cartridge dust collector is effectively protected, the damage is reduced, the service cycle of the filter cartridge is prolonged, and the dust removing effect of the filter cartridge is improved.

The beneficial effects of the utility model are as follows:

(1) According to the utility model, the pretreatment device is arranged, and a plurality of steel wires are utilized to intercept oil mist in dust and waste gas, and meanwhile, a part of dust can be intercepted, so that the subsequent dust removing load is reduced.

(2) According to the utility model, the pretreatment device is arranged to remove oil mist, dust is removed through the cyclone dust collector and the filter cartridge dust collector which are sequentially arranged, meanwhile, the cyclone dust collector is arranged in front of the filter cartridge dust collector, so that the filter cartridge dust collector can be protected, the filter cartridge is prevented from being damaged, volatile organic matters such as benzene, TVOC and the like are converted into non-toxic and harmless carbon dioxide and water through the plasma purifier, and finally, the standard emission is achieved.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic view showing the internal structure of the pretreatment device of the present utility model.

In the figure: the pretreatment device 1, the dust removing device 2, the plasma purifier 3, the fan 4, the chimney 5, the shell 6, the filter plate 7, the slide rail 8, the access door 9, the cyclone dust remover 10 and the filter cartridge dust remover 11.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

As shown in fig. 1-2, a plasma spraying dust treatment device comprises a pretreatment device 1, a dust removal device 2, a plasma purifier 3, a fan 4 and a chimney 5 which are sequentially connected through pipelines along the waste gas treatment sequence, wherein the pretreatment device 1 comprises a shell 6, and a plurality of filter plates 7 are arranged in the shell 6 at intervals along the waste gas circulation direction.

Specifically, the filter sheet 7 is a wire mesh sheet.

Specifically, the filter plate 7 forms sliding connection through between slide rail 8 and the inner wall of casing 6, and is equipped with access door 9 on the lateral wall of casing 6 that corresponds on the filter plate 7 slip direction, is convenient for dismantle regularly the washing to filter plate 7, prevents that filter plate 7 from blockking up after long-time use and leading to the inlet air to be unsmooth.

Specifically, the dust collector 2 comprises a cyclone dust collector 10 and a filter cartridge dust collector 11 which are sequentially connected, and the cyclone dust collector 10 is arranged firstly to filter large particles and tiny pellets in dust, so that a filter cartridge of the filter cartridge dust collector 11 is effectively protected, the damage is reduced, the service cycle of the filter cartridge is prolonged, and the dust removing effect of the filter cartridge is improved.

The working principle of the plasma purifier is as follows: the plasma purifier is also called as low temperature plasma waste gas purifier, under the action of the applied electric field, a large amount of energy-carrying electrons generated by the medium discharge bombard pollutant molecules to ionize, dissociate and excite the pollutant molecules, and then a series of complex physical and chemical reactions are initiated to convert complex macromolecular pollutants into simple micromolecular safe substances or convert toxic and harmful substances into non-toxic and harmless substances or low-toxic and low-harmful substances, so that the pollutants are degraded and removed.

The described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Claims

1. The utility model provides a plasma spraying dust treatment device, its characterized in that includes along exhaust-gas treatment order loop through pretreatment device, dust collector, plasma purifier, fan and the chimney of pipe connection, pretreatment device includes the casing, the inside interval of following the exhaust-gas flow direction of casing is provided with a plurality of filter plates.

2. A plasma spray dust treatment device according to claim 1, wherein the filter plate is a wire mesh plate.

3. The plasma spraying dust treatment device according to claim 1, wherein the filter plate is slidably connected to the inner wall of the housing through a slide rail, and an access door is provided on the side wall of the housing corresponding to the sliding direction of the filter plate.

4. A plasma spray dust treatment device according to claim 1, wherein the dust removing device comprises a cyclone dust remover and a cartridge dust remover which are sequentially connected.