CN201172037Y - Recovery filter unit for powder coating equipment - Google Patents

Abstract

The utility model relates to a recycling and filtering device for powder spraying equipment, comprising: a recycling fan, a fan chamber, an air distribution bag, an air distribution chamber, a recycling powder bucket, a filter chamber and several filter elements, the filter element is installed on the top of the filter chamber, and the top of the filter element is The air suction ports are connected to each other and connected to the air suction port of the recovery fan. The bottom of the filter chamber is set as a funnel, and the bottom of the funnel is connected to the recovery powder bucket. It is characterized in that a filter element hanger is arranged in the filter element. The recovery powder bucket includes a bucket body, a vibrating screen, a fluidized plate, an oscillator and an air supply pipe, and the recovery powder bucket system is docked with the accessory Venturi on the powder spray gun. The utility model can fully clean the powder adsorbed on the surface of the filter element, and the recovered powder can be used directly without additional treatment, realizes automatic recovery and reuse of the powder, reduces labor intensity, and improves work efficiency.

Description

Recovery filter unit for powder coating equipment

technical field

The utility model relates to an electrostatic powder spraying system, in particular to a powder recovery device in the electrostatic powder spraying system, which belongs to the technical field of environmental protection engineering.

Background technique

Powder recovery devices are installed in powder or dust spraying equipment to reduce air pollution and filter out the powder diffused in the air for recycling. An existing recovery device is equipped with a filter element structure to achieve the effect of separating the air and the dust in it. However, since the air intake of the recovery device is perpendicular to the cylindrical surface of the filter element, when the air flushes the filter element, the air entering the inner cavity of the filter element cannot The air pressure is equalized, and the air pressure entering the inner cavity of the filter element is also reduced, so that the powder adsorbed on the surface of the filter element is not cleaned sufficiently. The recovered powder falls directly into the powder bucket and needs to be manually screened for reuse, which increases the labor intensity and unnecessary time of the operator, and in the process, the powder is easy to pollute the environment and mix with other impurities.

Contents of the invention

In order to overcome the deficiencies of the prior art, the purpose of this utility model is to provide a recovery filter device for powder spraying equipment, which uses compressed air to clean the powder adsorbed on the surface of the filter element along the guide tube and falls into the powder sieve of the powder bucket , the powder falling into the bucket can be sprayed twice through fluidization. It not only makes the filter element easy to clean, but also recycles the oversprayed powder in time, which simplifies the operation steps, improves the work efficiency and saves human resources.

The utility model is realized through the following technical solutions: a recovery filter device for powder spraying equipment, comprising: a recovery fan, a fan chamber, an air distribution bag, an air distribution chamber, a recovery powder bucket, a filter chamber and several filter elements, the filter element is installed On the top of the filter chamber, the suction ports on the top of the filter element are connected to each other and connected to the suction port of the recovery fan. The bottom of the filter chamber is set as a funnel, and the bottom of the funnel is connected to the recovery powder bucket. It is characterized in that a filter element hanger is set inside the filter element. The recovery powder bucket includes a barrel body, a vibrating screen, a fluidized plate, an oscillator and an air supply pipe. The recovery powder bucket system is connected with the accessory Venturi on the powder spray gun.

The recovery filter device of the aforementioned powder spraying equipment is characterized in that the filter element hanger is mainly composed of a screw rod and a guide tube.

The beneficial effects of the utility model are: the utility model can fully clean up the powder adsorbed on the surface of the filter element, and the recovered powder can be used directly without additional treatment, realizes automatic recovery and reuse of the powder, reduces labor intensity, improves work efficiency.

Description of drawings

Fig. 1 is the front view of utility model;

Fig. 2 is a left view sectional schematic view of the utility model.

Detailed ways

Referring to Figure 1 and Figure 2, a recycling and filtering device for powder spraying equipment, including: recovery fan 1, fan chamber 2, gas distribution bag 3, gas distribution chamber, recovery powder bucket, filter chamber 4 and filter element 5, filter chamber 4 More than one filter element 5 is installed on the top, and the air suction ports on the top of the filter element 5 are connected to each other, and are connected to the air suction port of the recovery fan. The bottom of the filter chamber is arranged as a funnel, and the bottom of the funnel is connected with the recovery powder bucket. The powder recovery barrel includes a barrel body 9, a vibrating screen 10, a fluidized plate 11, an oscillator 12 and an air supply pipe 13. The vibrating screen 10 is installed in the middle and upper part of the barrel body, and springs are connected to the barrel body at four corners. The vibrator 12 is installed on the powder sieve, and the air source is connected, and the vibrator 12 drives the vibrating sieve 10 to work. The fluidized plate 11 is installed at the bottom of the barrel to form an independent fluidized bed at the bottom of the barrel. The recovery powder barrel is docked with the accessory Venturi 14 on the powder spray gun.

The working process of the utility model is: when using the device, the recovery fan 1 is turned on to form a negative pressure around the filter element. When spraying, the negatively charged paint particles sprayed from the spray gun are adsorbed under the action of static electricity when the workpiece is sprayed with a spray gun. To the opposite polarity of the workpiece to be sprayed, and the unadsorbed paint particles will run to the negative pressure filter element, and the suspended powder will be collected by the filter element. When cleaning the powder, open the exhaust system, the compressed air acts on the powder adsorbed on the surface of the filter element through the air distribution bag, so that the powder falls on the powder sieve of the powder bucket system from the guide tube, and the powder sieve is connected with the pneumatic oscillator, and the pneumatic vibration After the device is connected to the compressed air, it will vibrate, so that the powder on the powder sieve will fall into the barrel, and the residue will stay on the powder sieve. When the air source is connected, the fluidized plate works, so that the powder falling on the fluidized plate is fluidized, and is transported to the spray gun by the venturi under the action of air pressure, and can be sprayed twice, making full use of the powder raw material.

The utility model has been disclosed above with preferred embodiments, but it is not intended to limit the utility model, and all technical solutions obtained by adopting equivalent replacement or equivalent transformation methods fall within the protection scope of the utility model.

Claims (2)

1, the recovery filter of powder spray coating device, comprise: reclaim blower fan, fan house, branch gas bag, sub-air chamber, recovery powder bucket, filter chamber and some filter cores, filter core is installed in filter chamber top, the inlet scoop at filter core top is interconnected, and the inlet scoop of blower fan is reclaimed in connection, the filter chamber is arranged to funnel in the bottom, funnel bottom is connected with recovery powder bucket, its feature is provided with the filter core suspension bracket in filter core, described recovery powder bucket comprises staving, vibratory sieve, fluidisation plate, oscillator and air supply pipe, and this reclaims powder bucket system and docks with annex venturi on the podwer gun.

2, the recovery filter of powder spray coating device according to claim 1 is characterized in that described filter core suspension bracket mainly is made up of screw mandrel and mozzle.

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