CN206168190U - Waste gas treatment device - Google Patents

Abstract

The utility model discloses a waste gas treatment device, including scrubbing tower and exhaust column, be equipped with the waste gas entry on the scrubbing tower, the scrubbing tower top end dress has connect the bleed pipe, and this bleed pipe is connected with the water smoke filter, and this water smoke filter passes through the pipeline to be connected with the clarifier, and this clarifier comprises high-voltage electrostatic clarifier and UV ultraviolet light catalytic cleaner series connection, and high-voltage electrostatic clarifier is connected with the water smoke filter, and UV ultraviolet light catalytic cleaner passes through the pipeline and is connected with the exhaust column. The utility model discloses purifying effect is good, can not take place secondary pollution.

Description

A waste gas treatment device

technical field

The utility model relates to a waste gas treatment device, in particular to a device mainly used for treating organic waste gas produced in the circuit board industry.

Background technique

During the production process of circuit boards, a certain amount of organic waste gas will be generated. This waste gas contains organic pollutants, dust, particulate bacteria and other debris. If it is directly discharged into the air, it will cause serious air pollution. Therefore, at present, the exhaust gas will be treated first and then discharged into the air. Existing treatment devices usually use activated carbon for filtration, but in actual use, there are still some defects in activated carbon filtration. Activated carbon filtration will produce secondary pollution, and the cost of replacing activated carbon is high, which is not conducive to subsequent maintenance. Activated carbon filtration can only filter out particles, dust, and larger bacteria and viruses, but cannot decompose organic pollutants. It is mainly due to physical filtration and adsorption. Filtration will be missed, and residues will block the filter screen. Long-term replacement is required, resulting in high cost of use. .

Contents of the invention

The technical problem to be solved by the utility model is to provide a waste gas treatment device with good purification effect, low maintenance cost and no secondary pollution.

In order to solve the above technical problems, the utility model takes the following technical solutions:

An exhaust gas treatment device, comprising a washing tower and an exhaust tower, the washing tower is provided with an exhaust gas inlet, the top of the washing tower is connected with an air induction pipe, the air induction pipe is connected with a water mist filter, and the water mist filter passes through the pipe The road is connected to the purifier, which is composed of a high-voltage electrostatic purifier and a UV ultraviolet photocatalytic purifier connected in series, the high-voltage electrostatic purifier is connected to the water mist filter, and the UV ultraviolet photocatalytic purifier is connected to the exhaust tower through a pipeline .

The washing tower is sequentially provided with an air layer, a spray layer, a filling layer, a spray layer, a filling layer and an air layer from bottom to top, the air layer is connected to the air induction pipe, and the spray layer is connected to the water supply pipe.

The bottom surface of the washing tower is also provided with a circulating water tank, and the water supply pipe is connected with the circulating water tank.

A gas detection port is provided on the exhaust tower.

The washing tower is a cylindrical tower.

The high-voltage electrostatic purifier and the UV ultraviolet photocatalytic purifier are installed in a stainless steel box.

The utility model uses a high-voltage electrostatic purifier and a UV ultraviolet photocatalytic purifier to electrolytically separate waste gas and treat it with ultraviolet light. The attached bacterial particles are captured by high-strength voltage, and the cell wall composed of protein is instantly broken down by electricity, so as to kill bacteria, adsorb and remove dust. Using high-energy UV light beams to crack the molecular bonds of bacteria in malodorous gas, destroying the nucleic acid (DNA) of bacteria, and then carrying out oxidation reaction through ozone to completely achieve the purpose of deodorization and killing bacteria. The purification effect is comprehensive and no secondary pollution will occur.

In addition, the utility model can be installed in a container box, which is convenient for maintenance, movement and transportation.

Description of drawings

Accompanying drawing 1 is the schematic structural diagram of the main view of the utility model;

Accompanying drawing 2 is the utility model top view structure diagram.

detailed description

In order to facilitate the understanding of those skilled in the art, the utility model will be further described below in conjunction with the accompanying drawings.

As shown in accompanying drawings 1 and 2, the utility model discloses a device mainly used for treating organic waste gas generated in the circuit board production process, including a washing tower 1 and an exhaust tower 6, and the washing tower 1 is provided with The exhaust gas inlet, the top of the washing tower 1 is equipped with an air induction pipe 2, the air induction pipe 2 is connected to the water mist filter 3, the water mist filter 3 is connected to the purifier 4 through the pipeline, and the purifier is purified by high-voltage electrostatic The high-voltage electrostatic purifier is connected to the water mist filter, and the UV ultraviolet photocatalytic purifier is connected to the exhaust tower through a pipeline. The washing tower is provided with an air layer, a spray layer, a filling layer, a spray layer, a filling layer and an air layer in sequence from bottom to top. The air layer is connected to the air induction pipe, and the spray layer is connected to the water supply pipe. A circulating water tank is also provided on the bottom of the washing tower, and the water supply pipe is connected with the circulating water tank. In addition, the utility model can be installed in a container box, which is convenient for maintenance, movement and transportation.

The exhaust tower 6 is provided with a gas detection port 5 through which the cleanliness of the gas discharged from the exhaust tower can be detected. The washing tower is a cylindrical tower. The high-voltage electrostatic purifier and UV ultraviolet photocatalytic purifier are installed in a stainless steel box.

In the utility model, a high-voltage electrostatic purifier and a UV ultraviolet photocatalytic purifier are combined to realize better treatment of organic waste gas. The high-voltage electrostatic purifier uses a high-voltage direct current electric field to ionize the gas molecules in the air, generating a large number of electrons and ions, which move to the two poles under the action of the electric field force. During the movement, they encounter dust particles and bacteria in the airflow to charge them. Under the action of the electric field, the charged particles move with the opposite polar plate of the airflow. Under the action of the electric field, the free ions in the air will move to the two poles. The higher the voltage and the higher the electric field strength, the faster the movement speed of the ions. Due to the movement of ions, a current is formed between the electrodes. In the beginning, there are fewer free ions in the air and less current flow. After the voltage rises to a certain value, the ions near the discharge electrode obtain higher energy and speed. When they hit the neutral atoms in the air, the neutral atoms will decompose into positive and negative ions. This phenomenon is called air ionization. After the air is ionized, due to the chain reaction, the number of ions moving between the electrodes increases greatly, which is manifested as a sharp increase in the current between the electrodes (called corona current), the air becomes a conductor, and the high-strength voltage captures the attached bacterial particles and conducts electricity instantaneously. Break down the cell wall composed of protein to kill bacteria, adsorb and remove dust.

Utilize special high-energy high-ozone UV ultraviolet light beams to irradiate odorous gases, cracking odorous gases such as: ammonia, trimethylamine, hydrogen sulfide, methyl sulfide, methyl mercaptan, methyl sulfide, dimethyl disulfide, carbon disulfide and styrene, sulfide The molecular chain structure of H2S, VOC, benzene, toluene, and xylene makes the molecular chain of organic or inorganic macromolecular odor compounds degrade and transform into low molecular compounds, such as CO2, H2O, etc., under the irradiation of high-energy ultraviolet light beams. Using high-energy UV light beams to crack the molecular bonds of bacteria in malodorous gases, destroying the nucleic acid (DNA) of bacteria, and then performing oxidation reactions through ozone to completely achieve the purpose of deodorization and killing bacteria.

Using high-energy and high-ozone UV ultraviolet light beams to decompose oxygen molecules in the air to generate free oxygen, that is, active oxygen. Because the positive and negative electrons carried by free oxygen are unbalanced, they need to combine with oxygen molecules to generate ozone. UV+O2→O-+O* (active oxygen) O+O2→O3 (ozone), it is well known that ozone has a strong oxidation effect on organic matter, and has an immediate effect on the removal of malodorous gases and other irritating odors.

Nano-photocatalytic TiO2, its mechanism of action is simple: nano-photocatalyst TiO2 is excited to generate "electron-hole" pairs (a kind of high-energy particles) under the irradiation of light of a specific wavelength. This "electron-hole" pair and the surrounding After the action of water and oxygen, it has a strong oxidation-reduction ability, which can directly decompose pollutants such as aldehydes and hydrocarbons in the air into harmless and tasteless substances, and destroy the cell wall of bacteria, kill bacteria and Decompose its wire mesh bacteria, thereby achieving the purpose of eliminating air pollution.

It should be noted that the above description is not a limitation of the present utility model, and any obvious replacements are within the protection scope of the present utility model without departing from the inventive concept of the present utility model.

Claims (6)

1. a kind of emission-control equipment, including scrubbing tower and exhaust tower, scrubbing tower is provided with exhaust gas entrance, it is characterised in that institute Stating the attaching of scrubbing tower top has air entraining pipe, and the air entraining pipe is connected with Water spraying filter, and the Water spraying filter is by pipeline and purification Device connects, and the depurator is connected in series and is constituted by High-voltage electrostatic purification device and UV ultraviolet catalytic depurators, High-voltage electrostatic purification Device is connected with Water spraying filter, and UV ultraviolet catalytics depurator is connected by pipeline with exhaust tower.

2. emission-control equipment according to claim 1, it is characterised in that the scrubbing tower is sequentially provided with from lower to upper sky Gas-bearing formation, spraying layer, packed layer, spraying layer, packed layer and air layer, air layer is connected with air entraining pipe, and spraying layer connects with feed pipe Connect.

3. emission-control equipment according to claim 2, it is characterised in that the scrubbing tower bottom surface is additionally provided with recirculated water Case, feed pipe is connected with cyclic water tank.

4. emission-control equipment according to claim 3, it is characterised in that the exhaust tower is provided with gas detecting mouth.

5. emission-control equipment according to claim 4, it is characterised in that the scrubbing tower is cylinder tower.

6. emission-control equipment according to claim 5, it is characterised in that the High-voltage electrostatic purification device and UV ultraviolet lights Catalytic cleaner is arranged in rustless steel casing.