CN106215602A - Coating cloud purification environmental-protection tapping equipment - Google Patents

Abstract

The invention discloses an environmental protection discharge device for paint mist purification, which comprises a device frame, a separation tank fixed on the device frame, an air guide pipe, a filter chamber and an exhaust pipe. There is a bottom opening on the bottom surface and an air inlet on the upper part of the side. The air guide pipe has a front horizontal pipeline, a middle vertical pipeline and a rear horizontal pipeline. The front horizontal pipeline has an inlet on the front bottom surface, and the rear horizontal pipeline has a rear section There is an export port on the top surface, a communication pipe is connected between the top port of the separation tank and the inlet port of the air guide pipe, the bottom port of the separation tank is connected with a recovery tank, and the filter chamber is located above the horizontal pipeline in the rear section and has a bottom port at the bottom 1. There is a top port on the top, and three filter barriers are fixed inside from bottom to top. There is a conduction pipe between the outlet of the air guide pipe and the bottom port of the filter chamber, and the front end of the exhaust pipe is connected to the bottom of the filter chamber. The upper and rear ends of the top port are discharge ports, and the middle part is equipped with a fan device. The invention is environmentally friendly, healthy and low in cost.

Description

Paint mist purification environmental protection discharge device

technical field

The invention relates to the field of paint mist purification, in particular to an environmental protection discharge device for paint mist purification.

Background technique

Existing paint spray booths are too simple for the discharge of paint mist. Specifically, in the paint spray industry, the current oil-based paint spray equipment basically uses wet or dry spray booths, and the wet spray booths are mostly waterfall-type water curtain spray booths. After the paint mist is filtered by the water curtain, it is directly discharged by the exhaust fan through the exhaust pipe. It is basically untreated and belongs to straight discharge. The oily paint is insoluble in water. This method has low treatment efficiency and basically cannot pass the environmental protection standard. There will be a lot of paint attached, which must be cleaned frequently, especially cleaning the inner wall and blades of the fan, which is quite troublesome. If the cleaning is not done frequently, it will easily cause excessive attachment of the fan blades and unbalanced, the fan will vibrate and make great noise during operation, or the fan blades and the inner wall of the fan will stick to the motor. The load increases and the motor is burned; the dry spray booth basically adopts the direct filter mode, and the air containing paint mist is filtered and discharged through the filter chamber equipped with paint mist adsorption materials through the way of high-power fan suction. Although it can solve the problem, since the air containing a large amount of paint mist is directly pumped and filtered, the service life of the paint mist adsorption material is very short, and it needs to be replaced frequently, and the cost is very high.

Contents of the invention

In view of this, the technical problem to be solved by the present invention is to provide an environmentally friendly, healthy and low-cost paint mist purification and environmental protection discharge device.

In order to achieve the above object, the present invention adopts following technical scheme to realize:

An environmental protection discharge device for paint mist purification, which includes a device frame and a separation tank fixed on the device frame, an air guide pipe, a filter room and an exhaust pipe, and the inner diameter of the separation tank gradually increases from bottom to top. It is an inverted conical tank with a top opening on the top surface, a bottom opening on the bottom surface, and an air inlet on the upper side of the side near the top opening. The air guide pipeline has a front section of horizontal pipelines from front to back. 1. The "Z" type pipeline of the vertical pipeline in the middle section and the horizontal pipeline in the rear section. There is an export port, a communication pipe is connected between the top port of the separation tank and the inlet port of the air guide pipe, and a recovery tank is installed on the bottom port of the separation tank, and the filter chamber is located in the rear section of the horizontal pipe. There is a bottom opening on the top and bottom of the road, and a top opening on the top. There are three filter barriers, namely glass fiber paint mist felt, primary filter cotton and activated carbon filter cotton, fixed inside from bottom to top. There is a conduction pipe between the outlet of the filter chamber and the bottom port of the filter chamber. The front end of the exhaust pipe is connected to the top port of the filter chamber, and the rear end is a discharge port. The middle section is equipped with a fan device for exhausting air. .

Preferably, the rear section of the horizontal pipeline has a concave deposition chamber on the bottom surface of its front section.

Preferably, the recovery tank is detachably attached to the bottom port of the separation tank.

As a preference, the recovery tank has an overflow port on its side wall and is connected with an overflow pipe on the overflow port; Receptacle tank on the device rack.

As can be seen from the foregoing technical scheme, the beneficial effects of the present invention are:

Compared with the prior art, the present invention sets the separation tank so that it can separate the paint mist before the filter barrier, and then use the filter barrier to filter, so that the service life of the paint mist adsorption material in the filter barrier can be effectively extended , Reduce the cost of purchasing and supplying paint mist adsorption materials. In this way, the clean air that is exhausted by the fan is also separated and filtered, and there will be no or very small amount of paint adhesion, which effectively saves the investment in manual cleaning and prolongs the life of the machine. The service life of the fan is extended, and the air discharged through the two-pronged approach of separation and filtration is more in line with environmental protection standards, safer and healthier. Specifically, the air containing paint mist is simply filtered by the water curtain and enters the separation tank from the air inlet. Since the separation tank body is conical and the design wind speed is 20m/s, according to the Coanda principle, the airflow will flow along the The inner wall of the tank rotates downward at high speed and generates strong centrifugal force during the rotation process. In other words, a large cyclone centrifugal force is generated inside the separation tank. In this environment, the acceleration of gravity will throw tiny paint mist particles and water mist particles out of the airflow. It is to throw it on the inner wall of the tank. Under the design pressure and air volume conditions, particles ≥ 10 μm can be removed. Because the oil-based paint volatilizes slowly before reaching the vaporization temperature, it will always be in a fluid state, so when the particles hit the inner wall of the tank The inertia of the acceleration of gravity disappears, and the particles adhere to the inner wall of the tank and flow into the recovery tank at the bottom of the tank along the inner wall, that is, the separation effect is realized. At the working point, the separation efficiency is 99%, and within the range of ±15% of the working point, the separation The efficiency is 97%, and the separated airflow containing no or very small particles reaches the bottom of the conical tank due to the pressure rise and is squeezed with the external swirling airflow, forming a columnar internal swirling airflow vertically upward from the separation tank The upper part enters the air duct, and then passes through the middle vertical pipeline of the air duct. Due to the effect of gravity, the very little paint mist contained in the airflow will adhere to the inner wall of the duct and flow into the bottom of the ventilation duct along the inner wall or set at the bottom. In the deposition chamber of the present invention, three filter barriers of glass fiber paint mist mat, primary effect filter cotton and activated carbon filter cotton are set in the filter chamber, wherein the glass fiber paint mist mat is the first filter barrier, which specifically absorbs viscous The ultra-fine paint mist; the primary effect filter cotton is the second filter barrier; the activated carbon filter cotton is the third filter barrier, which filters odorous molecules, and finally, the filtered air completely reaches the environmental protection standard and is exhausted by the fan device released into the atmosphere.

Description of drawings

Fig. 1 is a schematic perspective view of the front view of the present invention, wherein the direction of the airflow is shown.

Fig. 2 is a perspective structural schematic diagram of the present invention in side view.

Fig. 3 is a perspective structural schematic diagram of the present invention viewed from above.

1. Device frame; 2. Separation tank;

3. Filter chamber; 4. Exhaust pipe;

5. Air inlet; 6. Front horizontal pipeline;

7. Vertical pipeline in the middle section; 8. Horizontal pipeline in the rear section;

9. Connecting pipeline; 10. Recovery tank;

11. Glass fiber paint mat; 12. Primary filter cotton;

13. Activated carbon filter cotton; 14. Leading pipe;

15. Drain port; 16. Fan device;

17. Deposition chamber; 18. Spill pipe;

19. To undertake the tank.

detailed description

In order for those skilled in the art to further understand the features and technical contents of the present invention, please refer to the following detailed description and accompanying drawings of the present invention.

Please refer to Fig. 1 to Fig. 3, the present invention provides a kind of paint mist purification environment-friendly discharge device, wherein, comprise device frame 1 and the separation tank 2 that is fixed on the device frame, air guide pipe, filter chamber 3 and Exhaust pipe 4, the separation tank is an inverted cone with an inner diameter gradually increasing from bottom to top, with a top opening on the top surface, a bottom opening on the bottom surface, and an air inlet 5 on the upper side of the side near the top opening. Shaped tank, the air guide pipe is a "Z"-shaped pipe with a front horizontal pipeline 6, a middle vertical pipeline 7 and a rear horizontal pipeline 8 from front to back, and the front horizontal pipeline is in front of its own front section. There is an inlet on the bottom surface, and the rear horizontal pipeline has an outlet on the top surface of its own rear section, and a communication pipe 9 is connected between the top port of the separation tank and the inlet of the air guide pipe. The bottom port of the separation tank is connected with a recovery tank 10, the filter chamber is located above the horizontal pipeline in the rear section and has a bottom port at the bottom, a top port at the top, and fixed internally from bottom to top. Glass fiber paint mist mat 11, primary effect filter cotton 12 and activated carbon filter cotton 13 three filter barriers, the outlet of the air guide duct and the bottom opening of the filter chamber are connected with a conduction duct 14, and the exhaust duct The front end of the filter chamber is connected to the top port of the filter chamber, the rear end is a discharge port 15, and the middle section is equipped with a fan device 16 for drawing air. Chamber 17, the recovery tank is detachably attached to the bottom opening of the separation tank, the recovery tank has a spill guide on its side wall and is connected with a spill guide 18 on the spill guide , also includes a receiving tank 19 located at the receiving position below the end of the overflow pipe and fixed on the device frame.

However, the above description is only a preferred feasible embodiment of the present invention, and is not intended to limit the patent scope of the present invention, so all equivalent structural changes made by using the description of the present invention and the contents of the accompanying drawings are all included in the scope of the present invention in the same way. within range.

Claims (4)

1. a coating cloud purification environmental-protection tapping equipment, it is characterised in that include that device frame (1) and dress are solid on described device frame Knockout drum (2), guide pipeline, filter chamber (3) and discharge duct (4), described knockout drum is that internal diameter is bottom-up to be increased also gradually Have on end face on top opening, bottom surface and have base opening, side epimere at described top opening, have the inverted cone tank of air inlet (5) Body, described guide pipeline is for having the horizontal pipeline of leading portion (6), stage casing vertical duct (7) and back segment horizontal tube the most successively " Z " the type pipeline on road (8), the horizontal pipeline of described leading portion has introducing port, described back segment horizontal tube on the bottom surface of self leading portion Road has export mouth on the end face of self back segment, is connected with communicating pipe between the top opening of described knockout drum and the introducing port of guide pipeline Road (9), the base opening of described knockout drum is accepted and is equiped with recycling can (10), and described filter chamber is positioned at the horizontal pipeline of described back segment Top and bottom has end port, top has top port, internal bottom-up be installed with glass coating cloud felt (11) successively, just imitate Filter cotton (12) and activated carbon filter cotton (13) three road filter barrier, the export mouth of described guide pipeline and the end port of filter chamber Between be connected with conducting pipeline (14), the front end of described discharge duct is connected on the top port of described filter chamber, rear end is floss hole (15), stage casing is equiped with the blower fan apparatus (16) in order to convulsion.

2. coating cloud purification environmental-protection tapping equipment as claimed in claim 1, it is characterised in that the horizontal pipeline of described back segment is in self There is on the bottom surface of leading portion the settling chamber (17) of recessed formation.

3. coating cloud purification environmental-protection tapping equipment as claimed in claim 1 or 2, it is characterised in that described recycling can is removable It is installed in the base opening of described knockout drum.

4. coating cloud purification environmental-protection tapping equipment as claimed in claim 3, it is characterised in that described recycling can is in the sidewall of self On have lead overflow lip and in described lead to be connected with on overflow lip leading the pipe (18) that overflows, also include being positioned at described in lead undertaking position below excessive pipe end Put place and fill solid undertaking tank (19) on described device frame.