CN201848188U - Pneumatic water atomization dust removal system for sand blast room - Google Patents

Abstract

The utility model provides a pneumatic water atomization dust removal system for a sandblasting room, which comprises a cavity, the front end of the cavity is sequentially connected with an air inlet pipe and an axial flow fan, and the connection between the chamber and the air inlet pipe There is also an air intake baffle that guides the dust-laden air to the bottom of the cavity; a gas atomization spray gun is set at the upper end of the cavity, and the gas atomization spray gun is connected to a water inlet tank and receives compressed air; the cavity An exhaust port is provided at the upper end, and a sedimentation tank and a water discharge port are provided at the bottom of the cavity. The utility model can automatically cycle the dust removal operation, and has high dust removal efficiency, low manufacturing and operating costs, and simple structure.

Description

A pneumatic water atomization dust removal system for a sandblasting room

【Technical field】

The utility model relates to a dust removal system, in particular to a pneumatic water atomization dust removal system.

【Background technique】

For the surface cleaning treatment of workpieces, one of the more efficient and effective treatment methods is to use sandblasting technology. In order to improve work efficiency, processing capacity and save costs, more and more people choose to build sandblasting rooms for blasting Sand operation, one of the most critical technical evaluation criteria for the sandblasting room is the dust removal effect of the sandblasting room, which requires the use of low-cost dust collectors with high dust removal efficiency. Dust collectors are widely used to control the dust and fumes that have been generated. According to the collection mechanism, it can be divided into mechanical dust collector, electric dust collector, filter dust collector and scrubber dust collector. Due to the consideration of dust removal equipment cost and dust removal efficiency, these traditional dust removal equipment are not suitable for high-efficiency dust removal and low-cost investment. Sandblasting room dust removal equipment.

The dust collectors in the prior art are mainly divided into the following types: 1. Mechanical dust collectors, relying on mechanical force to remove dust particles from the air flow, have a simple structure, low equipment costs and operating costs, but the dust removal efficiency is not high; 2. 1. The electrostatic precipitator uses electrostatic force to separate dust particles from the air flow. It is often classified according to the plate type and the tube type. It is characterized by small air flow resistance and a dust removal efficiency of over 99%, but the investment is high and the floor area is large; 3. Filtration The dust collector makes the dust-laden air flow pass through the filter material to separate and capture the dust particles. There are two methods: internal filtration and surface filtration. The dust removal efficiency is generally 90% to 99%. The filter needs to be replaced frequently, and it is not suitable for relatively fine dust. Filter and dusty gas with high temperature; 4. The dust collector uses liquid atomization to wash the dusty gas, so that the dust particles collide with the liquid droplets or liquid film and are captured and separated from the air flow. The dust removal efficiency is 80% to 95%. The settled liquid is directly discharged, and the operation cost is relatively high.

【Content of utility model】

The technical problem to be solved by the utility model is to provide a pneumatic water atomization dust removal system for a sandblasting room, which has low cost and high dust removal efficiency.

The utility model is achieved in that:

The utility model is a pneumatic water atomization dedusting system for a sandblasting room, which includes a cavity, the front end of the cavity is sequentially connected with an air inlet pipe and an axial flow fan, and there is a gap between the chamber and the air inlet pipe. An air intake baffle is provided to guide the dust-laden air to the bottom of the chamber; an air atomization spray gun is provided at the upper end of the chamber, and the air atomization spray gun is connected to a water inlet tank and receives compressed air; the upper end of the chamber is provided with An exhaust port, a settling water tank and a water discharge port are arranged at the bottom of the cavity.

Further, a primary-effect filter is set in the air intake pipe, and an opening is provided at the bottom of the air intake pipe in front of the primary-effect filter, and the opening is connected to a recovery box through a channel.

Further, the water inlet tank is connected to the sedimentation tank through a filter net, the water inlet tank is connected to a water inlet pipe, and a floating ball is provided, and a control switch for controlling the water intake of the water inlet pipe is controlled by the water level of the floating ball.

The utility model has the advantages that: compared with the prior art, the utility model:

1. The structure of the utility model is simple, just turn on the compressed air pressure, the water in the water inlet tank will be added automatically, and then turn on the axial flow fan to suck the dust-containing gas, and start the automatic cycle dust removal operation, without personnel duty;

2. The utility model adopts a gas atomization spray gun, uses compressed air as the power, sucks the liquid into the spray gun for atomization, and sets the air intake baffle to increase the contact time between the gas and the water mist, and the dust removal efficiency is high, reaching 95%, the equipment also uses a water inlet tank that enables water to be recycled automatically, saving water resources;

3. The utility model is easy to maintain and clean, and has low cost and low operating cost;

4. The utility model can also generate high-concentration negative oxygen ions during the working process, which is beneficial to the physical and mental health of the staff.

【Description of drawings】

The utility model will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

Fig. 1 is the structural representation of the utility model.

【Detailed ways】

Referring to Fig. 1, the embodiment of the present utility model is described in detail.

As shown in Figure 1, an embodiment of the utility model includes a cavity 1, the front end of the cavity 1 is sequentially connected with an air inlet pipe 2 and an axial flow fan 17, and the cavity 1 and the air inlet pipe 2 An intake baffle 3 that guides the dusty air to the bottom of the cavity 1 is also provided between them; An opening is provided at the bottom of the pipe 2 , and the opening is connected to a recovery box 6 through a channel 5 . The upper end of the cavity 1 is provided with a gas atomization spray gun 7, the gas atomization spray gun 7 is connected to a water inlet tank 8, and receives compressed air 9; the upper end of the cavity 1 is provided with an exhaust port 10, and the cavity 1 A settling water tank 11 and a water outlet 12 are arranged at the bottom. The water inlet tank 8 is connected to the sedimentation tank 11 through a filter screen 13, the water inlet tank 8 is connected to a water inlet pipe 14, and a float 15 is set, and the water level of the float ball 15 is used to control the water inlet of the water inlet pipe 14 The control switch 16.

The working principle of the utility model is as follows: the dusty air in the sandblasting room is sucked into the air intake pipe 2 of the equipment through the axial flow fan 17, and the primary effect filter screen 4 in the air intake pipe 2 will filter the larger dust in the dusty air. The dust particles are filtered and naturally settled into the recovery box 6. Because it is only preliminary filtration, the mesh of the primary filter 4 is relatively large, so it does not need to be replaced frequently. , leading to the bottom of the cavity 1, and then rising from the bottom to the exhaust port 10 at the upper end, which greatly increases the stroke of the gas in the cavity 1 and increases the contact time between the gas and the water mist. The gas atomization spray gun 7 at the upper end of the cavity 1 uses compressed air 9 as power to form a relative negative pressure in the spray gun 7, and is connected to the water tank 8 through a pipeline, and the liquid is sucked into the spray gun 7, and the water is passed through the high-pressure mist in the spray gun 7. After melting, it is sprayed out together with the high-pressure airflow, and is neutralized and adsorbed with the dust-containing gas in the cavity 1 to achieve the dust removal effect. After the water mist settles, the dust particles in it can slowly settle at the bottom of the settling water tank 11, and the water in the upper layer passes through the filter screen 13 and enters the water inlet tank 8 to continue to be used by the gas atomization spray gun 7. When the equipment stops using When, the water discharge port 12 can be opened to release the sewage, and then the settling water tank 11 is taken out as a whole for cleaning. In the water inlet tank 8, when the water level of the float 15 was lower than the minimum water level set, the control switch 16 would be automatically opened, and now the water inlet pipe 14 would replenish water for the water inlet tank 8. After the high-density water mist dust removal and filtration, the dust removal efficiency of the gas passing through the exhaust port 10 can be as high as 95%.

The above is only a preferred embodiment of the utility model, so the scope of implementation of the utility model cannot be limited accordingly, that is, the equivalent changes and modifications made according to the patent scope of the utility model and the contents of the specification should still belong to this utility model. within the scope of utility models.

Claims (3)

1. A pneumatic water atomization dedusting system for a sandblasting room, which includes a cavity, characterized in that: the front end of the cavity is sequentially connected to an air intake duct and an axial flow fan, and the cavity and the intake duct There is also an air intake baffle that guides the dust-laden air to the bottom of the cavity; an air atomization spray gun is provided at the upper end of the cavity, and the gas atomization spray gun is connected to a water inlet tank and receives compressed air; the cavity An exhaust port is provided at the upper end of the body, and a sedimentation tank and a water discharge port are provided at the bottom of the cavity. 2. A pneumatic water atomization dedusting system for a sandblasting room according to claim 1, characterized in that: a primary-effect filter is arranged in the air intake pipe, and an inlet in front of the primary-effect filter An opening is arranged at the bottom of the gas pipe, and the opening is connected to a recovery box through a channel. 3. A pneumatic water atomization dust removal system for a sandblasting room according to claim 1, characterized in that: the water inlet tank is connected to the sedimentation tank through a filter screen, the water inlet tank is connected to a water inlet pipe, and A floating ball is set, and a control switch for controlling the water inlet of the water inlet pipe is controlled by the water level of the floating ball.

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