CN217856706U - Asphalt flue gas purification system - Google Patents

Abstract

The utility model discloses an asphalt flue gas purification system, which relates to the field of flue gas purification equipment. The frame is sequentially installed with an electrostatic capture chamber, an atomization spray chamber and a filter chamber from right to left. A waste liquid collection tank is installed at the lower end corresponding to the electrostatic capture chamber and the atomization spray chamber, and a water eliminator is fixedly installed on the left side of the filter chamber through an air outlet pipe, and a dehumidification filter element is rotated inside the water eliminator. The utility model has the advantages of: aiming at the characteristics of very low content of volatile organic compounds, high oil content and high water content in the asphalt fume, the asphalt fume is purified by electrostatic capture and wire mesh filtration, which is effective The asphalt flue gas is purified, with high purification efficiency, low operating cost and no secondary pollution.

Description

A bitumen flue gas purification system

technical field

The utility model relates to the field of flue gas purification equipment, in particular to an asphalt flue gas purification system.

Background technique

At present, there are many kinds of gaseous organic pollutants, and there are many methods of treatment. The commonly used methods are: absorption method, adsorption method, catalytic combustion method, thermal combustion method, condensation method, washing method, etc.

These methods have their own characteristics and advantages and disadvantages in application, which need to be weighed according to the pollution degree, use environment and conditions. For example, waste gas with high boiling point, high concentration and complex composition should be burned by RTO equipment, waste gas with low boiling point, low concentration and simple composition should be treated by adsorption concentration + catalytic decomposition process, and dusty waste gas should be treated by washing method or dust collector .

The content of volatile organic compounds in asphalt flue gas is very low, the oil content is high, the water content is large, and the amount of waste gas is large. When treated by traditional methods, a large amount of waste activated carbon and waste water will be generated, and the purification cost is high. At the same time, a large amount of Waste of resources.

Utility model content

In order to solve the above technical problems, an asphalt flue gas purification system is provided. This technical solution solves the problem that the content of volatile organic compounds in the asphalt flue gas is very low, the oil content is high, the water content is large, and the waste gas volume is large. The traditional method will inevitably produce a large amount of waste activated carbon and waste water, the cost of purification is high, and it will cause a lot of waste of resources.

In order to achieve the above object, the technical solution adopted by the utility model is:

An asphalt flue gas purification system, including a frame, the right side of the frame is fixedly installed with an air intake cover, the upper end of the air intake cover is connected with an air inlet, and the frame is sequentially installed with electrostatic capture devices from right to left room, atomization spray room and filter room, the air intake hood, electrostatic capture room, atomization spray room and filter room are connected to each other, and the lower end of the frame is corresponding to the electrostatic capture room and atomization spray room Waste liquid collection tanks are installed at all positions, and a water eliminator is fixedly installed on the left side of the filter chamber through an air outlet pipe. A dehumidification filter element is installed inside the water eliminator, and the inside of the water eliminator is divided into an upper water removal part. and the lower drying part, the air outlet pipe communicates with the dewatering part, the left side of the dewatering part is fixedly connected with an exhaust joint, the left side of the drying part is fixedly connected with a drying joint, and the drying joint is connected with an external drying fan connect.

Preferably, a drive motor is fixedly installed at the lower end of the water eliminator, and the drive motor is used to drive the dehumidification filter element to rotate.

Preferably, a communication pipe is connected to the upper end of the waste liquid collection tank, and the plurality of waste liquid collection tanks are respectively communicated with the electrostatic capture chamber and the atomization spray chamber through the communication pipes.

Preferably, a negative electrode plate is installed at the upper end of the static capture chamber, and a positive electrode plate is installed at the lower end of the static capture chamber, and the positive electrode plate is arranged obliquely toward the connecting pipe.

Preferably, several humidification atomizers are installed on the right side of the atomization spray chamber, and several cleaning atomizers are installed on the right side of the atomization spray chamber, and the cleaning atomizers face the filter chamber.

Preferably, a wire mesh filter element is arranged inside the filter chamber, and a deflector is fixedly installed at the bottom inside the filter chamber, and the deflector is arranged obliquely toward the atomization spray chamber.

Preferably, the wire mesh filter element is formed by stacking and pressing irregular stainless steel wire mesh.

Preferably, a drain valve is installed on one side of the waste liquid collection tank.

Compared with the prior art, the utility model has the advantages of:

The utility model aims at the characteristics of very low content of volatile organic compounds, high oil content and high water content in asphalt fume, and adopts electrostatic capture and wire mesh filtration to purify asphalt fume, and uses high-voltage static electricity on special electrodes A free ion electric field is generated between the negative electrodes, and the negative ions generated by the negative electrode will bring the oil and water in the flue gas to the surface of the positive electrode during the process of swimming to the positive electrode. In this way, the oil fume can be purified. At the same time, the metal mesh filter element has a very large contact area. When the gas containing oil and water passes through the filter chamber, it contacts the surface of the filter element made of stainless steel wire. At this time, a certain amount of oil and water will be released. Adheres to the surface of stainless steel wire. When the amount of oil and water adhering to the surface of the stainless steel wire reaches a certain level, it will fall into the lower waste liquid collection tank under the influence of gravity, which effectively ensures the removal of oil and water in the asphalt fume and realizes efficient purification. At the same time, the rotary water removal is adopted. The device absorbs the water vapor in the exhaust gas to avoid the occurrence of white dragon in the smoke.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model;

Fig. 2 is a schematic diagram of the internal structure of the utility model.

The labels in the figure are:

1. Rack; 2. Air intake hood; 201. Air intake; 3. Static capture chamber; 301. Negative electrode plate; 302. Positive electrode plate; 4. Atomizing spray chamber; 401. Humidifying atomizer ; 402, cleaning atomizer; 5, filter chamber; 501, screen filter element; 502, deflector plate; 6, air outlet pipe; 7, dehydrator; Joint; 704, drive motor; 8, waste liquid collection tank; 801, connecting pipe; 802, drain valve.

Detailed ways

The following description is used to disclose the utility model so that those skilled in the art can realize the utility model. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations.

Referring to Figure 1-2, an asphalt flue gas purification system includes a frame 1, an air inlet hood 2 is fixedly installed on the right side of the frame 1, and an air inlet 201 is connected to the upper end of the air inlet hood 2. The electrostatic capture chamber 3, atomization spray chamber 4 and filter chamber 5 are installed in sequence from right to left, the air intake cover 2, electrostatic capture chamber 3, atomization spray chamber 4 and filter chamber 5 are connected to each other, and the inside of the frame 1 Waste liquid collection tank 8 is installed at the lower end corresponding to electrostatic capture chamber 3 and atomization spray chamber 4, and water eliminator 7 is fixedly installed on the left side of filter chamber 5 through air outlet pipe 6, aiming at volatile organic compounds in asphalt fume The content of the asphalt is very low, the oil content is high, and the water content is large. The asphalt flue gas is purified by electrostatic capture and wire mesh filtration.

A dehumidification filter element 701 is rotated inside the water eliminator 7. The inside of the water eliminator 7 is divided into an upper dewatering part and a lower drying part. The air outlet pipe 6 communicates with the dewatering part. The left side of the dewatering part is fixedly connected with an exhaust joint 702. , the left side of the drying part is fixedly connected with a drying joint 703, the drying joint 703 is connected with an external drying fan, and a driving motor 704 is fixedly installed at the lower end of the water eliminator 7. It is used to remove the moisture in the treated waste gas, reduce the water vapor content in the waste gas, and avoid the occurrence of smoke white dragon. When working, the waste gas containing a large amount of water vapor enters the water removal part and is absorbed by the dehumidification filter element 701. After dehumidification, it is discharged through the exhaust joint 702, and then the dehumidification filter element 701 that absorbs moisture is transferred to the drying section, and after being dried by an external drying fan, it is transferred to the dewatering section for dehydration cycle.

The upper end of the waste liquid collection tank 8 is connected with a communication pipe 801, and the plurality of waste liquid collection tanks 8 are respectively connected with the electrostatic capture chamber 3 and the atomization spray chamber 4 through the communication pipe 801, and a drain valve is installed on one side of the waste liquid collection tank 8 802 , the waste liquid during the flue gas treatment process is discharged into the waste liquid collection tank 8 through the communication pipe 801 for collection, and when a certain amount is collected, it is discharged through the liquid discharge valve 802 .

The upper end of the electrostatic capture chamber 3 is equipped with a negative electrode plate 301, and the lower end of the electrostatic capture chamber 3 is equipped with a positive electrode plate 302. The positive electrode plate 302 is inclined to the direction of the connecting pipe 801, and high-voltage static electricity is used to generate a free ion electric field between the special electrodes. The negative ions generated by the negative electrode plate 301 bring the oil and water in the flue gas to the surface of the positive electrode plate 302 in the process of swimming to the positive electrode plate 302. When the amount of oil and water adhered to the surface of the positive electrode plate 302 reaches a certain amount, it is naturally affected by gravity. Flow into the waste liquid collecting tank 8 provided below.

A number of humidification atomizers 401 are installed on the right side of the atomization spray chamber 4, and a number of cleaning atomizers 402 are installed on the right side of the atomization spray chamber 4. The cleaning atomizers 402 face the filter chamber 5, and the humidification atomizers 401 is used for timing cooling and humidification of subsequent filter blocks, and the cleaning atomizer 402 is used for cleaning the wire mesh filter element 501. The working flow rate of the humidifying atomizer 401 is: 0.028kg/hour/4kg, The working flow rate for cleaning the atomizer 402 is: 5.62 kg/10 minutes/4 kg.

The inside of the filter chamber 5 is provided with a wire mesh filter element 501, and the bottom of the inside of the filter chamber 5 is fixedly installed with a deflector 502. The deflector 502 is inclined towards the atomization spray chamber 4, and the wire mesh filter element 501 is superimposed by irregular stainless steel wire mesh. Pressed, the wire mesh filter element 501 has a very large contact area. When the gas containing oil and water passes through the filter chamber 5, it contacts the surface of the wire mesh filter element 501 made of stainless steel wire. At this time, a certain amount of oil and water will adhere to the On the surface of the stainless steel wire, when the amount of oil and water adhered to the surface of the stainless steel wire reaches a certain level, it will fall into the lower waste liquid collection tank 8 under the influence of gravity.

The working principle of the utility model is: the flue gas enters the electrostatic capture chamber 3 from the intake hood 2, and the high-voltage static electricity is used to generate a free ion electric field between the special electrodes to bring the oil and water in the flue gas to the surface of the positive electrode plate 302. When the amount of oil and water adhered to the surface of the electrode plate 302 reaches a certain amount, it will naturally flow into the lower waste liquid collection tank 8 under the influence of gravity, and then the flue gas enters the atomizing spray chamber 4, and the humidifying atomizer 401 is used to purify the flue gas. Humidification and spraying, and then the flue gas containing a large amount of water vapor enters. When the filter chamber 5 contacts the surface of the wire mesh filter element 501 made of stainless steel wire, the oil-water mixture will adhere to the surface of the stainless steel wire. When it adheres to the surface of the stainless steel wire When the amount of oil and water reaches a certain level, it will fall into the lower waste liquid collection tank 8 under the influence of gravity, and then the flue gas will enter the water removal part of the water eliminator 7 for water removal.

To sum up, the utility model has the advantages of: aiming at the characteristics of very low content of volatile organic compounds, high oil content, and large water content in asphalt fume, the method of electrostatic capture and wire mesh filtration is used to collect asphalt fume. Gas purification, effective purification of asphalt flue gas, high purification efficiency, low operating costs, and no secondary pollution.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions describe only the principle of the utility model. There will be various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The protection scope required by the utility model is defined by the appended claims and their equivalents.

Claims (8)

1. A kind of asphalt flue gas purification system is characterized in that, comprises frame (1), and described frame (1) right side is fixedly equipped with air intake hood (2), and described air intake hood (2) upper end connects There is an air inlet (201), and the frame (1) is sequentially installed with an electrostatic capture chamber (3), an atomizing spray chamber (4) and a filter chamber (5) from right to left, and the air inlet cover ( 2), the electrostatic capture chamber (3), the atomization spray chamber (4) and the filter chamber (5) are connected to each other, and the inner lower end of the frame (1) is connected to the electrostatic capture chamber (3) and the atomization spray chamber (4) waste liquid collection tanks (8) are installed at the corresponding positions, and a water eliminator (7) is fixedly installed on the left side of the filter chamber (5) through the air outlet pipe (6), and the water eliminator (7) A dehumidification filter element (701) is installed inside to rotate. The inside of the dewatering device (7) is divided into an upper dewatering part and a lower drying part. The air outlet pipe (6) communicates with the dewatering part. An exhaust joint (702) is fixedly connected to the side, and a drying joint (703) is fixedly connected to the left side of the drying part, and the drying joint (703) is connected to an external drying fan. 2. A kind of asphalt flue gas purification system according to claim 1, characterized in that, a drive motor (704) is fixedly installed at the lower end of the water eliminator (7), and the drive motor (704) is used to drive the dehumidification The filter element (701) rotates. 3. A kind of asphalt flue gas purification system according to claim 1, characterized in that, the upper end of the waste liquid collection tank (8) is connected with a connecting pipe (801), and a plurality of the waste liquid collection tanks (8) communicate with the electrostatic capture chamber (3) and the atomizing spray chamber (4) respectively through the communication pipe (801). 4. A kind of asphalt flue gas purification system according to claim 3, characterized in that, a negative electrode plate (301) is installed at the upper end of the electrostatic capture chamber (3), and a negative electrode plate (301) is installed at the inner lower end of the electrostatic capture chamber (3). A positive electrode plate (302) is installed, and the positive electrode plate (302) is inclined to the direction of the communication pipe (801). 5. A kind of asphalt fume purification system according to claim 3, characterized in that, several humidifying atomizers (401) are installed on the right side of the atomizing spray chamber (4), and the atomizing spray Several cleaning atomizers (402) are installed on the right side of the shower room (4), and the cleaning atomizers (402) face the filter chamber (5). 6. A kind of asphalt flue gas purification system according to claim 4, characterized in that, the inside of the filter chamber (5) is provided with a wire mesh filter element (501), and the inside bottom of the filter chamber (5) is fixedly installed with A deflector (502), the deflector (502) is arranged obliquely towards the atomization spray chamber (4). 7 . The asphalt flue gas purification system according to claim 6 , characterized in that, the wire mesh filter element ( 501 ) is formed by overlapping and pressing irregular stainless steel wire mesh. 8 . 8. A bitumen flue gas purification system according to claim 5, characterized in that a drain valve (802) is installed on one side of the waste liquid collection tank (8).

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