CN204447673U - Renewable voc absorber - Google Patents

Abstract

A regenerative VOC adsorber, comprising a device body, a ventilation duct is arranged in the device body, a dust removal plate and a filter layer are sequentially arranged in the ventilation duct from bottom to top, and the device body is provided with an air inlet below the dust removal board, The top of the device body is located above the filter layer and is provided with an air outlet; the bottom of the device body is provided with an ash collecting hopper, and the bottom of the ash collecting hopper is provided with an ash outlet; the bottom of the device body is also provided with a water outlet, and the water outlet is arranged at On the ash outlet, the top of the equipment body is provided with an air distribution head, and the equipment body is located above the filter layer and is provided with an air outlet pipe. It is connected with a steam pipe, and the steam pipe is equipped with a control valve. The VOC adsorber with a new structure can blow off the organic matter on the activated carbon through steam after the activated carbon is saturated, so that the activated carbon can be regenerated, avoiding the replacement of activated carbon and saving energy. operating costs.

Description

Renewable VOC Adsorber

technical field

The utility model relates to the technical field of VOC waste gas purification, in particular to a regenerable VOC adsorber used in oil refining, chemical industry, wheel hub, rubber and other industries and other factory buildings with peculiar smell.

Background technique

VOC is the English abbreviation of volatile organic compounds (volatile organic compounds). At present, the traditional activated carbon adsorption is mainly used in the treatment of industrial plants and plant VOC treatment technologies and equipment. With the continuous upgrading of various factory processes, the emitted Exhaust is also getting more complex. Especially for VOCs with a large dust content, after the activated carbon absorbs harmful components in the organic waste gas, the specific surface area becomes smaller, reducing the adsorption capacity, resulting in unqualified tail gas emissions, and replacing activated carbon will increase operating costs.

Utility model content

The purpose of the utility model is to provide a regenerable VOC adsorber with simple structure, cost saving, long service life and ideal effect.

In order to solve the above-mentioned technical problems, the utility model provides a regenerable VOC adsorber, which includes a device body, a ventilation duct is arranged in the device body, a dust removal plate and a filter layer are arranged in the ventilation duct from bottom to top, and the device body There is an air inlet under the dust removal plate, and an air outlet is arranged on the top of the equipment body above the filter layer;

The bottom of the device body is provided with a water outlet, the top of the device body is provided with an air distribution head, and the device body is located above the filter layer with an air outlet pipe. The outlet of the air outlet pipe is a bell mouth, and the large end of the bell mouth faces the air cloth seal head, the outlet pipe is connected with a steam pipe, and a control valve is arranged on the steam pipe.

In order to make the air distribution uniform, the utility model is improved as follows: the inner wall of the air distribution head is hemispherical, and the big end of the bell mouth faces the hemispherical center of the air distribution head.

In order to improve the regeneration function of the filter layer, the utility model has the improvement that a compressed air pipe is connected to the air outlet pipe, and a control valve is arranged on the compressed air pipe.

In order to facilitate the maintenance and replacement of the activated carbon layer, the utility model has the improvement that an activated carbon outlet is provided on the device body corresponding to the position of the activated carbon layer.

The utility model is improved as follows: the bottom of the device body is provided with an ash collecting hopper, the bottom of the ash collecting hopper is provided with an ash outlet, and the water outlet is arranged on the ash outlet;

The dust removal plate includes a frame and a filter plate fixed in the frame. The angle between the filter plate and the frame is 60°. A vibration system is arranged below the dust removal plate. The vibration system includes a vibration motor, a vibration steel belt, and a vibration motor. Drive the vibrating steel belt to vibrate, and the vibrating steel belt is in contact with the dust removal plate;

The utility model has the improvement that the interval between the filter plates is 1-5mm.

The beneficial effect of the utility model is: the VOC adsorber of the new structure can blow off the organic matter on the activated carbon through steam after the activated carbon is adsorbed and saturated, so as to regenerate the activated carbon, avoid replacing the activated carbon, and save operating costs.

Description of drawings

Accompanying drawing 1 is the structural representation of the renewable VOC adsorber of the present utility model;

Explanation of symbols: 1-equipment body; 2-filter layer; 3-air inlet; 4-air outlet; 5-frame; 6-filter plate; 7-vibration motor; 8-vibration steel belt; 10-ash outlet; 11-water outlet; 12-air distribution head; 13-outlet pipe; 14-steam pipe; 15-compressed air pipe; 16-control valve.

Detailed ways

In order to describe the technical content, structural features, achieved goals and effects of the present utility model in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

Referring to accompanying drawing 1, the figure shows that the utility model provides a regenerative VOC adsorber, including a device body 1, which is provided with an air duct, and the air duct is sequentially provided with a dust removal plate, a filter Layer 2, the device body 1 is located below the dust removal plate and is provided with an air inlet 3, and the top of the device body 1 is provided with an air outlet 4 above the filter layer 2;

The dust removal plate includes a frame 5 and a filter plate 6 fixed in the frame 5, the angle between the filter plate 6 and the frame 5 is 40-70°, a vibration system is arranged below the dust removal plate, and the vibration system includes a vibration motor 7 and the vibration steel belt 8, the vibration motor 7 drives the vibration steel belt 8 to vibrate, and the vibration steel belt 8 contacts with the dust removal plate;

The bottom of the device body 1 is provided with an ash collecting hopper 9 , and the bottom of the ash collecting hopper 9 is provided with an ash outlet 10 .

When in use, VOC enters the interior of the device from the air inlet 3, and the gas rises from the bottom, and first passes through the dust removal plate. Since the angle between the filter plate 6 and the frame 5 is 40-70°, the gas changes under the blocking of the filter plate 6. The ascending direction of the airflow has been changed into a slanted ascending direction. In addition, the filter plates 6 are arranged side by side on the frame 5, so that the airflow flows upward through multiple channels, so that the denser particles in the gas are left on the dust removal plate.

Further, after long-term research and experiments, the applicant found that when the angle between the filter plate 6 and the frame 5 is 60°, the gas can be effectively filtered while least affecting the flow velocity of the airflow. In addition, according to the dust particles The amount is determined, and the interval between the filter plates 6 is generally 1-5mm.

The air flow continues to flow upwards after passing through the dust removal plate, and passes through the filter layer 2. In this embodiment, the filter layer 2 is an activated carbon layer, which can further filter the gas. After passing through the activated carbon layer, VOC becomes a standard gas. From the equipment The gas outlet 4 discharges.

The VOC adsorber with a new structure removes most of the dust particles before VOC enters the activated carbon layer, which improves the adsorption effect of activated carbon on VOC.

In this embodiment, the activated carbon layer is directly fixed in the device body 1 through a fixing frame. Specifically, the fixing of the activated carbon layer is not specifically limited in this embodiment, as long as the activated carbon can be fixed, the corresponding activated carbon layer on the device body 1 There is an activated carbon outlet at the position, which is convenient for replacing and maintaining the activated carbon layer.

When the particulate dust on the filter plate 6 has accumulated to a certain thickness, the vibrating motor 7 is turned on, and the vibrating motor 7 drives the vibrating steel belt 8 through its own vibration function to vibrate the dust removal plate to make the dust particles fall. The dust particles are directly collected by the dust collecting hopper 9 and discharged through the dust outlet 10.

In this embodiment, the bottom of the device body 1 is also provided with a water outlet 11, the water outlet 11 is arranged on the ash outlet 10, the top of the device body 1 is provided with an air distribution head 12, and the inner wall of the air distribution head 12 It is hemispherical, and the device body 1 is provided with an air outlet pipe 13 above the filter layer 2. The outlet of the air outlet pipe 13 is a bell mouth, and the large end of the bell mouth faces the hemispherical center of the air distribution head 12. The air outlet pipe 13 is connected with a steam pipe 14 and a compressed air pipe 15, and a control valve 16 is arranged on the steam pipe 14 and the compressed air pipe 15.

After the VOC deduster of the present utility model is used for a certain period of time, the adsorption of the active carbon layer will be saturated. At this time, the water outlet 11 at the bottom is opened, and then the control valve 16 that controls the steam pipe 14 is opened, and the steam is blown out from the bell mouth through the air outlet pipe 13 and blown out. It hits the gas distribution head 12, and is back-pressured to the activated carbon layer through the reflection of the gas distribution head 12, and the organic matter adsorbed on the activated carbon is blown off, and flows out from the water outlet 11 at the bottom.

The hemispherical design of the inner wall of the air distribution head 12 makes the reflection of the steam through the air distribution head 12 more uniform, and realizes the maximum blowing of the activated carbon layer.

Then close the control valve 16 that controls the steam pipe 14, and open the control valve 16 that controls the compressed air pipe 15. The compressed air is blown to the activated carbon layer through the same channel as the steam, and the particles in the activated carbon layer are dried to complete the regeneration function. , to avoid frequent replacement of activated carbon, saving operating costs.

The new VOC dust collector adopts a square structure in the lower part and a circular head in the upper part for air distribution to ensure that there is no dead angle in dust removal and uniform air distribution. In addition, the lower and upper circle structure can make the installation of the dust removal plate have no dead ends.

The above is only an embodiment of the utility model, and does not limit the patent scope of the utility model. Any equivalent structure or equivalent process conversion made by using the utility model specification and accompanying drawings, or directly or indirectly used in other Related technical fields are all included in the patent protection scope of the present utility model in the same way.

Claims (6)

1. a renewable VOC absorber, it is characterized in that, comprise apparatus body, breather line is provided with in apparatus body, dedusting plate, filter course is disposed with from bottom to top in breather line, described apparatus body is positioned at below dedusting plate and is provided with air inlet, and apparatus body top is positioned at above filter course and is provided with gas outlet;

Also delivery port is provided with bottom described apparatus body, described apparatus body top is provided with gas distribution end socket, apparatus body is positioned at above filter course and is provided with escape pipe, the outlet of escape pipe is horn mouth, bell-mouthed large end is towards gas distribution end socket, described escape pipe is connected with steam pipe, and described steam pipe is provided with by-pass valve control.

2. renewable VOC absorber according to claim 1, is characterized in that, the inwall of described gas distribution end socket is hemispherical, and described bell-mouthed large end is towards the hemispheric center of gas distribution end socket, and described apparatus body is square structure, and gas distribution end socket is circular.

3. renewable VOC absorber according to claim 1, is characterized in that, described escape pipe is connected with compressed air hose, compressed air hose is provided with by-pass valve control.

4. renewable VOC absorber according to claim 1, is characterized in that, on described apparatus body, corresponding active carbon layer position offers active carbon outlet.

5. renewable VOC absorber according to claim 1, is characterized in that, be provided with flue-dust retainer bottom described apparatus body, and be provided with ash hole bottom described flue-dust retainer, delivery port is arranged on ash hole; Described dedusting plate comprises frame and is fixed on the filter in frame, the angle of described filter and frame is 60 °, is provided with vibroseis below described dedusting plate, and vibroseis comprises vibration motor and vibrations steel band, vibration motor drives the vibrations of vibrations steel band, and vibrations steel band contacts with dedusting plate.

6. renewable VOC absorber according to claim 5, is characterized in that, is spaced apart 1-5mm between filter.