CN201091817Y - Exhaust gas treatment device - Google Patents

Abstract

The utility model relates to a waste gas treatment device, it includes a gas flow pipe, a gas form absorbing layer, a defogging layer, a high-pressure discharge layer and an electrostatic precipitation layer, wherein waste gas gets into in this gas flow pipe, and with the intraformational atomizing absorption solution of this gas form absorbing layer, dissolve the gas form pollutant in the absorption waste gas, and absorb and get rid of water smoke with the porous filler material in this defogging layer, then let the granular pollutant in the waste gas be charged state with the intraformational high-pressure discharge of this high-pressure discharge, with borrowing by the intraformational polar plate of this electrostatic precipitation, utilize the electromagnetic force that positive and negative phase was inhaled to adsorb electrified granular pollutant and get rid of, and then the utility model discloses can effectively get rid of the gas form pollutant and the granular pollutant in the waste gas, really avoid waste gas to cause harm to the environment.

Description

Exhaust gas treatment device

technical field

The utility model relates to a waste gas treatment device, in particular to a waste gas treatment device which can effectively remove gaseous pollutants and granular pollutants.

Background technique

During the manufacturing process of chemical plants, semiconductor factories and steel factories, more or less waste gas will be generated. The waste gas contains gaseous pollutants harmful to the human body and the environment, such as sulfuric acid, hydrogen chloride, nitric acid, hydrogen fluoride, etc., as well as Granular pollutants such as dust.

In order to maintain air quality and ensure the health of the human body, the waste gas containing gaseous pollutants and granular pollutants must be treated to reduce the concentration to a safe standard before being discharged. At present, the existing devices for treating waste gas generally use corresponding absorption solutions to absorb gaseous pollutants. Pollutants, or use combustion to burn gaseous pollutants, and then use various filter layers to collect particulate pollutants, and at the same time use the height of the chimney to remove untreated gaseous pollutants and particulate pollutants Discharge at high altitudes to quickly dilute it with high-altitude airflow, so as to reduce the concentration to safety standards and reduce its hazards.

Existing waste gas treatment devices cannot effectively absorb and treat gaseous pollutants and particulate pollutants in the waste gas. Although the exhaust gas can be discharged at high altitude through the chimney to reduce the concentration of harmful substances in the waste gas to a safe range, it cannot True filtration absorbs gaseous pollutants and particulate pollutants, which still have a non-negligible impact on human health and the environment. Nowadays, with increasingly stringent environmental protection requirements, there is still room and necessity for improvement.

This shows that the above-mentioned existing waste gas treatment device obviously still has inconvenience and defects in structure and use, and needs to be further improved urgently. In order to solve the problems existing in exhaust gas treatment devices, relevant manufacturers have tried their best to find a solution, but no suitable design has been developed for a long time, and there is no suitable structure for general products to solve the above problems, which is obvious. It is a problem that relevant industry players are eager to solve. Therefore, how to create a waste gas treatment device with a new structure has become a goal that the current industry needs to improve.

In view of the defects existing in the above-mentioned existing waste gas treatment devices, the designer, based on his rich practical experience and professional knowledge in the design and manufacture of such products for many years, combined with the application of academic principles, actively researched and innovated, in order to create a new type of structure. The waste gas treatment device can improve the general existing waste gas treatment device to make it more practical. Through continuous research, design, and after repeated trial samples and improvements, the utility model with practical value is finally created.

Contents of the invention

The main purpose of the utility model is to overcome the defects existing in the existing waste gas treatment device and provide a new structure of the waste gas treatment device. The technical problem to be solved is to make it effectively filter the gaseous pollutants and granular pollution in the waste gas material, to avoid exhaust gas harming human health and the environment, which is more suitable for practical use.

The purpose of the utility model and its technical problem are solved by adopting the following technical solutions in addition. A waste gas treatment device proposed according to the utility model is used for treating a waste gas having a plurality of gaseous pollutants and a plurality of granular pollutants, and is characterized in that it comprises: a gas flow pipe, the gas flow pipe An inlet and an outlet are provided, the exhaust gas enters the gas flow pipe through the inlet, and leaves the gas flow pipe through the outlet; a gas absorbing layer is arranged in the gas flow pipe and Close to the inlet, at least one spraying device is arranged in the gas absorption layer, and the spraying device sprays an atomized absorption solution for absorbing the plurality of gaseous pollutants; a demister layer, the demist layer It is arranged in the gas channel pipe and behind the gas absorbing layer, and the demister layer is provided with a porous filling material for filtering the water vapor in the waste gas; a high-voltage discharge layer is arranged on the In the gas channel tube and behind the demisting layer, a discharge element is provided on the high-voltage discharge layer. The discharge element can generate a group of electrons moving at a high speed, and the electron group hits the plurality of particulate pollutants, so that the plurality of particles Particle pollutants are charged; an electrostatic dust collection layer, the electrostatic dust collection layer is arranged in the gas flow channel tube and close to the outlet and behind the high voltage discharge layer, the electrostatic dust collection layer is provided with a pole plate, the pole plate has The polar plate attracts the charged particulate pollutants with the opposite charge to the charged particulate pollutants, so that the charged particulate pollutants adhere to the polar plate.

The purpose of this utility model and the solution to its technical problems can also be further realized by adopting the following technical measures.

The aforementioned exhaust gas treatment device, wherein the gas absorption layer is further provided with a pH controller, the pH controller has a pH measuring element and a switch controller, the pH measuring element measures the atomized absorption solution , and use the switch controller to control whether the spraying device sprays the absorption solution.

In the aforementioned waste gas treatment device, the electrostatic precipitating layer is provided with an air injection element, and the air injection element ejects high-pressure gas to collect the plurality of particulate pollutants on the electrode plate to a collection tank.

In the aforementioned waste gas treatment device, the electrostatic precipitating layer is provided with an oscillator, and the oscillator is used to vibrate the pole plate to collect the plurality of particulate pollutants on the pole plate into a collection tank.

In the aforementioned waste gas treatment device, the gas absorption layer is provided with an absorption channel through which the waste gas flows, and the atomized absorption solution is arranged in the absorption channel.

In the aforementioned exhaust gas treatment device, the absorption channel is curved back and forth.

Compared with the prior art, the utility model has obvious advantages and beneficial effects. It can be seen from the above that in order to achieve the above purpose, the utility model provides a waste gas treatment device, which includes a gas flow pipe, a gas absorption layer, a defogging layer, a high-voltage discharge layer and an electrostatic dust collection layer, And it is used to treat a waste gas, the waste gas has a plurality of gaseous pollutants and a plurality of particulate pollutants, wherein the gas flow pipe is provided with an inlet and an outlet, the waste gas enters the gas flow pipe through the inlet, and passes through the The outlet is away from the gas flow pipe, the gas absorption layer is arranged in the gas flow pipe and close to the inlet, and at least one spraying device is arranged in the gas absorption layer, and the spray device is used to spray an atomized The absorption solution, and the absorption solution is used to absorb the plurality of gaseous pollutants.

The demisting layer is arranged in the gas channel pipe and behind the gas absorbing layer, and the demisting layer is provided with a porous filling material, which is used to filter the water vapor in the waste gas, and the high-voltage discharge layer Installed in the gas channel tube and behind the demisting layer, the high-voltage discharge layer is provided with a discharge element, the discharge element can generate a group of electrons moving at high speed, and the electron group is used to hit the plurality of particulate pollutants, To charge the plurality of particulate pollutants, the electrostatic dust collection layer is arranged in the gas flow channel pipe and is close to the outlet and behind the high voltage discharge layer. The electrostatic dust collection layer is provided with an electrode plate with a The plurality of particulate pollutants have opposite charges, and the electrode plate is used to attract the charged plurality of particulate pollutants so that the charged plurality of particulate pollutants are attached to the electrode plate.

It can be seen from the above that the waste gas treatment device of the present utility model includes a gas flow pipe, a gas absorption layer, a defogging layer, a high-voltage discharge layer and an electrostatic dust collection layer, wherein the waste gas enters the gas flow pipe, And use the atomized absorption solution in the gaseous absorption layer to dissolve and absorb the gaseous pollutants in the exhaust gas, and use the porous filling material in the demisting layer to absorb and remove the water mist, and then use the high-voltage discharge in the high-voltage discharge layer Let the particulate pollutants in the exhaust gas be in a charged state, so as to use the positive and negative electromagnetic force to absorb and remove the charged particulate pollutants through the pole plate in the electrostatic dust collection layer, and then the utility model can effectively remove the exhaust gas The gaseous pollutants and particulate pollutants in the waste gas can truly avoid the harm of the exhaust gas to the environment.

By virtue of the above-mentioned technical solution, the waste gas treatment device of the present utility model has at least the following advantages: Compared with the prior art, the waste gas treatment device of the present utility model has a plurality of gaseous pollutants and a plurality of granular pollutants in the waste gas, respectively It will be dissolved and adsorbed by the atomized absorption solution and the electrode plate with electromagnetic attraction, so it can be effectively filtered to prevent the exhaust gas from endangering human health.

The utility model has the above-mentioned many advantages and practical value, it has great improvement no matter in device structure or function, has significant progress in technology, and has produced easy-to-use and practical effect, and compared with the existing waste gas The processing device has multiple enhanced functions, so it is more suitable for practical use, and has wide application value in the industry. It is a novel, progressive and practical new design.

The above description is only an overview of the technical solutions of the present utility model. In order to better understand the technical means of the present utility model, it can be implemented according to the contents of the description, and in order to make the above-mentioned and other purposes, features and advantages of the present utility model better It is obvious and easy to understand. The preferred embodiments are specifically cited below, together with the accompanying drawings, and detailed descriptions are as follows.

Description of drawings

Figure 1 is a schematic diagram of the system structure of the utility model.

Fig. 2 is a schematic diagram of another embodiment of the system structure of the present invention.

Detailed ways

In order to further explain the technical means and effects of the utility model to achieve the intended purpose of the invention, the specific implementation, structure, characteristics and other aspects of the exhaust gas treatment device proposed according to the utility model will be described below in conjunction with the accompanying drawings and preferred embodiments. Efficacy, detailed as follows.

Please refer to Fig. 1, the exhaust gas treatment device of the present invention includes a gas flow pipe 10, a gas absorption layer 20, a defogging layer 30, a high voltage discharge layer 40 and an electrostatic dust collection layer 50, It is used for treating an exhaust gas with a plurality of gaseous pollutants and a plurality of particulate pollutants.

Wherein the gas flow pipe 10 is provided with an inlet 11 and an outlet 12, the waste gas enters the gas flow pipe 10 through the inlet 11, and leaves the gas flow pipe 10 through the outlet 12, the gas absorbing layer 20 Located in the gas channel pipe 10 and close to the inlet 11, and at least one spraying device 21 is arranged in the gas absorption layer 20, the spraying device 21 is used to spray an atomized absorption solution 22, and the absorption The solution 22 is used to absorb the plurality of gaseous pollutants. Generally speaking, the plurality of gaseous pollutants are gases such as sulfuric acid, hydrogen chloride, nitric acid, hydrogen fluoride, etc., and the absorption solution 22 is an alkaline liquid, so in order to save costs And to keep the efficiency of absorbing the plurality of gaseous pollutants at a certain level, the gaseous substance absorbing layer 20 can be further provided with a pH controller 23, and the pH controller 23 has a pH measuring element 231 and a switch controller 232 , the pH measuring element 231 is used to measure the pH of the atomized absorption solution 22, and according to the pH, the switch controller 232 controls whether the spraying device 21 sprays the absorption solution 22, which can keep the pH at an appropriate level values for maximum benefit.

And this gas absorbing layer 20 can also be provided with an absorbing channel 24, and this absorbing channel 24 is made of acid and alkali corrosion-resistant material, and is curved back and forth, and this waste gas flows through this absorbing channel 24, and the The atomized absorption solution 22 is disposed in the absorption channel 24 , so the contact time between the absorption solution 22 and the gaseous pollutants can be increased to improve the absorption efficiency.

The demisting layer 30 is arranged in the gas channel pipe 10 and behind the gas absorbing layer 20, and the demisting layer 30 is provided with a porous filling material 31, which is used to filter the exhaust gas Moisture, the porous filling material 31 can be made of soft porous materials such as sponges and foamed cotton to absorb and filter water vapor.

The high-voltage discharge layer 40 is arranged in the gas channel pipe 10 and behind the demister layer 30, and the high-voltage discharge layer 40 is provided with a discharge element 41, and the discharge element 41 can generate a high-speed moving electron group 411. The electron group 411 is used to collide with the plurality of particulate pollutants to knock out electrons to charge the plurality of particulate pollutants.

The electrostatic dust collection layer 50 is located in the gas flow channel pipe 10 and is close to the outlet 12 and behind the high voltage discharge layer 40. The electrostatic dust collection layer 50 is provided with a pole plate 51, and the pole plate 51 has a The opposite charges of the particulate pollutants, so that the electrode plate 51 is used to attract the charged plurality of particulate pollutants, so that the charged plurality of particulate pollutants are attached to the electrode plate 51. And this electrostatic precipitator layer 50 is provided with an air ejection element 52, and this air ejection element 52 is used for ejecting high-pressure gas, collects the plurality of particulate pollutants on the pole plate 51 to a collecting tank 53, so as to avoid the pole plate 51 The plate 51 absorbs too much particulate pollutants and reduces the adsorption effect. Or, please refer to Fig. 2 again, this electrostatic precipitator 50 also can be provided with an oscillator 54, and this oscillator 54 is used for vibrating this pole plate 51, and it can collect the granular pollutant on this pole plate 51 equally to the collection tank 53.

As mentioned above, the utility model can efficiently absorb the gaseous pollutants in the waste gas through the atomized absorption solution 22 in the gas absorption layer 20 , and then pass through the demisting layer 30 to remove the water in the waste gas The air is filtered out, and the discharge element 41 generates an electron group 411 to charge the plurality of particulate pollutants, so that the plurality of particulate pollutants can be effectively adsorbed by the plate 51, and the utility model can greatly reduce the emission to the environment The gaseous pollutants and particulate pollutants in the air do not need to use the high-altitude diffusion of the chimney to reduce the concentration to a safe range, and truly avoid the harm of the exhaust gas to the environment.

The above are only preferred embodiments of the present utility model, and do not limit the utility model in any form. Although the utility model has been disclosed as above with preferred embodiments, it is not intended to limit the utility model. Any Those skilled in the art can use the technical content disclosed above to make some changes or modify them into equivalent embodiments without departing from the technical solution of the present utility model. Content, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the utility model still belong to the scope of the technical solution of the utility model.

Claims (6)

1. An exhaust gas treatment device for treating an exhaust gas having a plurality of gaseous pollutants and a plurality of particulate pollutants, characterized in that it comprises: A gas flow pipe (10), the gas flow pipe (10) is provided with an inlet (11) and an outlet (12), the exhaust gas enters the gas flow pipe (10) through the inlet (11), and is the outlet (12) leaves the gas flow pipe (10); A gas absorbing layer (20), the gas absorbing layer (20) is arranged in the gas channel pipe (10) and close to the inlet (11), and the gas absorbing layer (20) is provided with at least one spraying device (21) spraying an atomized absorption solution (22) for absorbing the plurality of gaseous pollutants; A mist removal layer (30), the mist removal layer (30) is arranged in the gas channel pipe (10) and behind the gas absorbing layer (20), and the mist removal layer (30) is provided with a A porous filling material (31) for filtering moisture in the waste gas; A high-voltage discharge layer (40), the high-voltage discharge layer (40) is arranged in the gas channel pipe (10) and behind the demister layer (30), and the high-voltage discharge layer (40) is provided with a discharge element ( 41), the discharge element (41) can generate a high-speed moving electron group (411), and the electron group (411) hits the plurality of particulate pollutants to charge the plurality of particulate pollutants; An electrostatic dust collection layer (50), the electrostatic dust collection layer (50) is arranged in the gas flow channel pipe (10) and is close to the outlet (12) and behind the high voltage discharge layer (40), the electrostatic dust collection layer Layer (50) is provided with a pole plate (51), and this pole plate (51) has the charge opposite to the plurality of particulate pollutants, and the pole plate (51) attracts the charged plurality of particulate pollutants, so that the A plurality of charged particulate pollutants are attached to the pole plate (51). 2. The exhaust gas treatment device according to claim 1, characterized in that the gas absorbing layer (20) is further provided with a pH controller (23), and the pH controller (23) has a pH measurement element (231) and a switch controller (232), the pH measuring element (231) measures the atomized absorption solution (22), and controls whether the spraying device (21) is controlled by the switch controller (232) The absorption solution (22) is sprayed. 3. The exhaust gas treatment device according to claim 1, characterized in that the electrostatic dust collection layer (50) is provided with an air injection element (52), and the air injection element (52) ejects high-pressure gas, and the The plurality of particulate pollutants on the pole plate (51) are collected into a collecting tank (53). 4. The exhaust gas treatment device according to claim 1, characterized in that the electrostatic dust collection layer (50) is provided with an oscillator (54), and the oscillator (54) is used to vibrate the plate (51) , collecting the plurality of particulate pollutants on the pole plate (51) to a collection tank (53). 5. The waste gas treatment device according to claim 1, characterized in that the gas absorption layer (20) is provided with an absorption channel (24), the exhaust gas flows through the absorption channel (24), and The atomized absorption solution (22) is disposed in the absorption channel (24). 6. The exhaust gas treatment device according to claim 5, wherein the absorption channel (24) is curved back and forth.

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