CN202366614U - Coating exhaust gas purifier - Google Patents

Abstract

The body of the painted exhaust gas purifier is composed of an air inlet, a paint mist filter cotton device, a mechanical filter device, two high-voltage sawtooth electric field adsorption areas, an amalgam light catalytic area, an anti-ultraviolet mechanical filter, and an air outlet. The shape of the box body can be cylindrical or rectangular, and the air outlet and the air inlet are respectively communicated with the air intake duct and the exhaust duct. The device can effectively process organic substances in industrial production, including benzenes, ketones, esters, alcohols, ethers and alkanes, and the purification efficiency can reach more than 85%. The purification effect is good and the processing speed is fast.

Description

Coating exhaust gas purifier

【Technical field】

The utility model relates to a waste gas treatment device, in particular to a purification treatment of low-concentration organic waste gas produced in industries such as petroleum, chemical industry, rubber, paint, coating, furniture, home appliances, printing, etc. Types include benzenes, ketones, esters, alcohols, ethers and alkanes, etc.

【Background technique】

In modern industrial fields such as petroleum, chemical, rubber, paint, painting, furniture, home appliances, printing and other industries, low-concentration organic waste gas will be produced. These waste gases are generally treatable organic substances, including benzene and ketones. , Esters, Alcohols, Ethers and Alkanes etc. The organic waste gas produced does not meet the national gas emission standards, causing pollution to the atmospheric environment.

The organic waste gas treatment in the prior art generally adopts methods such as activated carbon adsorption, catalytic combustion, catalytic oxidation, acid-base neutralization, and plasma. The above methods have certain effects on waste gas treatment, but generally they can only treat waste gas in specific fields, but cannot effectively deal with various types of waste gas produced in modern industrial production, and the comprehensive treatment capacity is weak.

【Content of utility model】

In order to overcome the shortcomings of the existing technology, the utility model provides a painting waste gas purifier. The device adopts a combination of paint mist filtration + mechanical filtration + plasma + UVC to purify organic waste gas. The types of organic substances that can be effectively treated by the device include Benzene, ketones, esters, alcohols, ethers and alkanes, etc. The device has a strong exhaust gas comprehensive treatment capability, and can effectively reduce the exhaust gas content to meet the national exhaust gas emission standards.

The technical solution adopted in the utility model is: a painted waste gas purifier, the body of which is composed of an air inlet, a paint mist filter cotton device, a mechanical filter device, two high-voltage sawtooth electric field adsorption areas, an amalgam light catalytic area, and an ultraviolet-resistant mechanical filter. The box body connected in turn by the net and the air outlet, the shape of the box body can be cylindrical or rectangular, and the air outlet and the air inlet are respectively connected with the intake pipe and the exhaust pipe.

As a preference, the exhaust gas purifier for painting is characterized in that the high-voltage sawtooth electric field adsorption area contains 3-10 pairs of trumpet-shaped high-voltage discharge electrodes, and can be arranged in 2-5 rows before and after, approaching two rows of trumpet-shaped high-voltage discharge electrodes in turn. They are staggered from each other, and one end is the air flow direction, and the two rows of central areas are connected in turn to form an ozone area.

Preferably, the exhaust gas purifier for painting is characterized in that the amalgam light catalytic zone adopts an ultraviolet germicidal lamp with a spectrum energy of 200-280mn, and a quartz sleeve is socketed in the ultraviolet germicidal lamp.

The machine waste gas enters the plasma organic waste gas purifier after being collected. First, the dust and other particulate matter in the organic waste gas is absorbed and filtered by the imported paint mist filter cotton through the pretreatment section, so that the dust concentration in the outflowing organic waste gas is greatly reduced, thus ensuring Normal operation of high-voltage plasma electric field. After the pretreatment device, the concentration of organic waste gas is relatively balanced. After the waste gas passes through the two-stage Hengjie original zigzag plasma electric field, it is hit by a large number of electric charges caused by corona discharge in the electric field. The particles in the waste gas are highly ionized, fully decomposed and carbonized; After passing through the plasma high-voltage electric field, the exhaust gas passes through the ultraviolet photocatalytic area, and a large amount of ozone generated by the low-pressure amalgam lamp (Germany Heraeus) oxidizes and decomposes organic substances such as toluene and xylene in the exhaust gas, thereby achieving the goal of purifying organic waste gas. The purpose is to achieve a purification efficiency of more than 85%. All the exhaust gas passes through the discharge area of the "horn mouth" cathode plate, so that the exhaust gas is completely broken down, ionized and oxidized by the high-voltage electric field. The sawtooth discharge of the "horn mouth" has good ventilation effect, large treatment area and high discharge ozone content, and the effect is better than that of general plate treatment.

The beneficial effects of the utility model are: the device can effectively process organic substances in industrial production, including benzenes, ketones, esters, alcohols, ethers and alkanes, and the purification efficiency reaches more than 85%. The purification effect is good and the processing speed is fast.

In order to further understand the features and technical content of the utility model, please refer to the drawings and implementations of the utility model for details. However, the attached drawings are only for reference and description, and are not intended to limit the utility model.

【Description of drawings】

Fig. 1 is a structural diagram of the utility model;

Fig. 2 is the structural diagram of the high-voltage sawtooth electric field adsorption area of the utility model;

Fig. 3 is the sectional view of the high-voltage sawtooth electric field adsorption area A-A' of the utility model;

In the figure, 1-body; 2-air inlet; 3-paint mist filter cotton device; 4-mechanical filter device; 5-high voltage sawtooth electric field adsorption area; 6-amalgam light catalytic area; 7-ultraviolet protection mechanical filter; 8-air outlet; 9-high voltage discharge electrode; 10-ozone area; 11-air flow direction.

【Detailed ways】

Below in conjunction with accompanying drawing and implementation example the utility model is further described.

As shown in Figure 1-3, its body (1) consists of an air inlet (2), a paint mist filter cotton device (3), a mechanical filter device (4), two high-voltage sawtooth electric field adsorption areas (5), an amalgam light Catalytic zone (6), anti-ultraviolet mechanical filter screen (7), and air outlet (8) are connected sequentially to the casing, and the shape of the casing can be cylindrical or rectangular, and the air outlet (2) and the air inlet (8) are respectively It communicates with the intake pipe and exhaust pipe. The high-voltage sawtooth electric field adsorption area (5) contains 3-10 pairs of trumpet-shaped high-voltage discharge electrodes (9), and can be arranged in 2-5 rows before and after, and the two rows of trumpet-shaped high-voltage discharge electrodes (9) are staggered in turn, and one end is airflow The flow direction (11) connects two rows of central areas successively to form an ozone area (10). The amalgam light catalytic zone (6) adopts an ultraviolet germicidal lamp with a spectral energy of 200-280mn, and a quartz sleeve is sleeved on the ultraviolet germicidal lamp.

Example 1, the machine waste gas enters the plasma organic waste gas purifier after being collected. First, the dust and other particulate matter in the organic waste gas is absorbed and filtered by the imported paint mist filter cotton through the pretreatment section, so that the dust concentration in the outflowing organic waste gas is greatly increased. Reduced, so as to ensure the normal operation of the high-voltage plasma electric field. After the pretreatment device, the concentration of organic waste gas is relatively balanced. After the waste gas passes through the two-stage Hengjie original zigzag plasma electric field, it is hit by a large number of electric charges caused by corona discharge in the electric field. The particles in the waste gas are highly ionized, fully decomposed and carbonized; After passing through the plasma high-voltage electric field, the exhaust gas passes through the ultraviolet photocatalytic area, and a large amount of ozone generated by the low-pressure amalgam lamp (Germany Heraeus) oxidizes and decomposes organic substances such as toluene and xylene in the exhaust gas, thereby achieving the goal of purifying organic waste gas. The purpose is to achieve a purification efficiency of more than 85%. All the exhaust gas passes through the discharge area of the "horn mouth" cathode plate, so that the exhaust gas is completely broken down, ionized and oxidized by the high-voltage electric field. The sawtooth discharge of the "horn mouth" has good ventilation effect, large treatment area and high discharge ozone content, and the effect is better than that of general plate treatment.

Example 2, high-voltage electric field maintenance The electric field unit must be cleaned regularly to avoid affecting the processing efficiency and causing accidents. The cleaning interval is 1-2 months in areas with average paint mist concentration, and the cleaning cycle can be appropriately shortened in places with high paint mist concentration. During normal operation, the fan and purifier cannot be switched on and off frequently. Since the purifier has a time-delay function, the electric field does not work in the first 8 minutes, so frequent startup is equal to not working, which will affect the treatment effect and shorten the service life. Do not turn on the power supply of the purifier when the electric field is not connected, so as to avoid excessive no-load high voltage breakdown insulators and discharge accidents.

Embodiment 3, the maintenance of the ultraviolet lamp tube, because the ultraviolet radiation has a certain harmful effect when directly acting on the human body, so it is necessary to avoid direct exposure to the human body during use. The service life of ultraviolet lamps can generally reach 9000 hours, and the treatment efficiency is inversely proportional to the time during use. To achieve a better treatment effect, the lamps need to be replaced regularly. Ultraviolet lamp tubes are fragile items and should be handled with care during installation and transportation.

Embodiment 4, maintenance of the paint-resistant cotton, the paint-resistant cotton is a consumable item, and it is necessary to replace the paint-resistant cotton according to the on-site treatment efficiency.

The device can effectively process organic substances in industrial production, including benzenes, ketones, esters, alcohols, ethers and alkanes, and the purification efficiency can reach more than 85%. The purification effect is good and the processing speed is fast.

However, the above are only preferred and feasible embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Various modifications or applications made according to the above embodiments are within the protection scope of this technical solution.

Claims (3)

1. application catalytic converter; It is characterized in that; The casing that body is connected by air inlet, coating cloud filter cotton device, mechanical filter unit and two high pressure sawtooth electric field adsorption zones, amalgam vapour lamp photocatalytic region, antiultraviolet mechanical filter net, air outlets successively; Box shape can be cylindric, square shape, and each is communicated with air outlet and air inlet with admission line and discharge duct.

2. application catalytic converter according to claim 1; It is characterized in that; High pressure sawtooth electric field adsorption zone comprises 3-10 to the toroidal high-voltage discharging electrode, and can arrange 2-5 row in front and back, staggers each other near two row's toroidal high-voltage discharging electrodes successively; At one end be air flow direction, the two row central areas that link to each other successively form the ozone zone.

3. application catalytic converter according to claim 1 is characterized in that, the amalgam vapour lamp photocatalytic region adopt can the 200-280mn spectral energy ultraviolet germicidal lamp, and at ultraviolet germicidal lamp socket quartz socket tube.

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