CN206008360U - A kind of vertical absorbent charcoal adsorber for being suitable to process point source waste gas - Google Patents

Abstract

The utility model discloses a vertical activated carbon adsorption device suitable for treating point source waste gas, which belongs to the field of waste gas adsorption and purification in environmental protection. The upper part of the device housing is provided with an air inlet, and the lower part is provided with an air outlet. The dust filter, activated carbon adsorption layer and fan are arranged sequentially in the device housing from top to bottom. The fixed cover, the air collecting pipe and the second air collecting hood, the fixed cover is covered on the device shell, the edge of the device shell is sealed, the air inlet is connected with the fixed cover, the second air collecting hood is placed near the exhaust gas pollution source and the cover mouth is closed Facing the source of exhaust gas pollution. The utility model takes in air from the top of the device and exhausts from the bottom. It has the advantages of simple structure, easy processing, small footprint, convenient installation and maintenance, high adsorption efficiency, and can handle point source waste gas. It is suitable for the production of medicine and health care products. Point source exhaust gas purification and treatment projects in confined spaces such as

Description

A vertical activated carbon adsorption device suitable for treating point source exhaust gas

technical field

The utility model belongs to the technical field of waste gas adsorption and purification in environmental protection, in particular to a vertical activated carbon adsorption device suitable for treating point source waste gas.

Background technique

When a gas mixture is treated with a porous solid substance, one or some components in the gas can be attracted to the solid surface and enriched on it. This process is called adsorption. Commonly used adsorbents include activated carbon, zeolite, silica gel, activated alumina, peat and other substances. As an artificial material, activated carbon has abundant micropores and a huge specific surface area, and its adsorption capacity is much higher than that of porous adsorption materials such as zeolite, activated alumina and silica gel; in addition, it has low impurity content, strong selective adsorption capacity, and low price Easy to get and other advantages, so the most widely used.

As the most common waste gas adsorption and purification method, activated carbon adsorption device can effectively adsorb and purify aromatic organic substances such as benzene, toluene, xylene and volatile organic substances such as lipids and ketones in waste gas. It has been widely used in the furniture and wood industry. , chemical and pharmaceutical, printing and dyeing, leather packaging and other industrial waste gas purification fields. However, due to various reasons, the device may have defects such as a large area occupied by the device, difficult maintenance and operation of equipment, difficulty in replacing saturated activated carbon, and low adsorption efficiency due to uneven distribution of air intake, resulting in unsatisfactory purification effects.

China Patent Authorization Announcement No. CN204865449 U, the patent document on December 16, 2015 discloses a high-efficiency activated carbon adsorption box, which adopts the way of top air intake and side exhaust, and one activated carbon adsorption box is installed along both sides of the air intake pipe. Each zone consists of several activated carbon units with a thickness of 100mm. After the exhaust gas enters the intake pipe from the top (the bottom of the intake pipe is closed, and the air comes out from the side), it enters the activated carbon adsorption area set on both sides respectively, and after the adsorption is completed, it is discharged from the other side of the adsorption area. The exhaust port at the center of the side of the box is discharged; fans and other equipment need to be installed outside the box, and personnel need to complete the replacement and maintenance of activated carbon through the inspection door set on the other side of the box.

China Patent Authorization Announcement No. CN204034510 U, the patent document on December 24, 2014 discloses an activated carbon adsorption box, which consists of an air inlet and two groups of activated carbon adsorption perpendicular to the air inlet but parallel to each other from right to left. Each activated carbon chamber consists of 2-3 horizontally inserted drawer-type activated carbon adsorption layers. The air inlet is at the top of the rightmost side of the box. After air intake, the exhaust gas enters the first activated carbon adsorption chamber from the air intake gap at the bottom of the box, and then enters the second chamber from the top gap, and is sucked out by the fan from the second chamber. , discharged from the exhaust port at the top of the far right, and the fan exhaust pipe is equipped with a muffler.

The above-mentioned activated carbon adsorption device mainly has the following problems:

1. The structure is cumbersome and complicated, which is inconvenient for processing and production, and inconvenient for later operation and management;

2. No dust removal device is installed before the exhaust gas contacts the activated carbon, and the dust blocks the micropores on the surface of the activated carbon particles, which affects the normal adsorption of the activated carbon;

3. There are too many invalid spaces. In addition to the activated carbon adsorption layer, there are still spaces for gas discharge and replacement of activated carbon in the adsorption box. The occupied area increases, which is not suitable for many places with limited space;

4. Fans and other equipment need to be installed outside the box, which requires an additional increase in floor area and installation work, and can only be used in a fixed position, and the operation is not flexible;

5. There are too many activated carbon layers, the wind resistance is relatively large, and the required power consumption is also large; the replacement of activated carbon needs to be carried out through the inspection door, which is inconvenient for operation and maintenance;

6. The structure is unreasonable, and the air intake channel or internal gas distribution is uneven, which will lead to a "dead zone" where the activated carbon layer is not fully in contact with the exhaust gas, reducing the purification effect of the adsorption device;

7. The design is unreasonable, the area of the gas channel is too small, so that the speed of the air flow is too fast, which greatly reduces the contact time between the pollutants in the exhaust gas and the activated carbon, and reduces the purification effect.

Utility model content

The technical problems to be solved by the utility model: overcome the common activated carbon adsorption device with cumbersome structure, inconvenient processing and manufacture, too large invalid space and low adsorption efficiency, too small air intake area or uneven gas distribution, too thick activated carbon layer and too large impedance , Occupying a large area, complex installation and operation, difficult replacement of activated carbon, and inconvenient operation and maintenance, etc., to provide an activated carbon that is easy to process, compact in structure, small in area, uniform in air intake and air distribution, moderate in adsorption resistance, convenient in installation and maintenance, etc. It is a vertical integrated activated carbon adsorption device that is easy to replace, has high adsorption efficiency, and can collect and treat point source exhaust gas.

For realizing above-mentioned technical purpose, the technical scheme that the utility model takes is:

A vertical activated carbon adsorption device suitable for treating point source exhaust gas, including a device housing, the upper part of the device housing is provided with an air inlet, the lower part is provided with an air outlet, and the device housing is arranged in turn from top to bottom. Adsorption layer and fan, the upper part of the device shell is provided with a gas collection device, the gas collection device includes a fixed cover, an air collection pipe and a second gas collection cover connected in sequence, the fixed cover is covered on the device shell, and the edge of the device shell is sealed. The air inlet is communicated with the fixed cover, and the second air collecting cover is placed near the exhaust gas pollution source and the cover mouth is facing the exhaust gas pollution source.

In order to optimize the above technical solutions, the specific measures taken also include:

The bottom of the above-mentioned activated carbon adsorption layer is provided with a mesh plate, the mesh plate is inclined, and a layer of fine leak-proof net is placed on the mesh plate. The mesh diameter of the fine leak-proof mesh is smaller than the diameter of the activated carbon particles in the activated carbon adsorption layer, and the mesh plate is fixed in the device housing. The device housing is provided with a carbon outlet at the lower end of the mesh plate. When the carbon outlet is opened, the activated carbon particles in the activated carbon adsorption layer can be discharged from the carbon outlet along the inclined mesh plate.

The above-mentioned fixed cover is fixedly connected with the device casing by bolts, and a sealing gasket is arranged between the fixed cover and the device casing.

The above-mentioned dust removal filter is assembled by upper and lower layers of wire mesh and filter cotton in the middle. The inner wall of the device housing is provided with a slot at the lower part of the dust removal filter, and the dust removal filter is provided with a bayonet, which can be snapped The dedusting filter screen is detachably fixed in the device casing in the card slot or can be opened and closed.

A funnel-shaped first gas-collecting hood is arranged under the above-mentioned mesh plate, and the upper end of the first gas-collecting hood is welded and fixed on the inner wall of the device casing, and the space in the device casing is sealed and separated into upper and lower layers. The end of the first gas-collecting hood It is connected with the air inlet of the fan, and the air outlet pipe of the fan is connected with the air outlet.

The air inlet of the above-mentioned fan is tightly connected with the end of the first air collecting hood, the air outlet and the air outlet pipe of the fan, and the air outlet pipe of the fan extends out of the device housing.

The distance between the upper end of the above-mentioned screen plate connected to the device shell and the fixed position of the dust filter is not less than 350mm; the angle at which the screen plate is inclined to the carbon outlet is not greater than 15º at a horizontal angle; the porosity of the screen plate is not less than 80%, the opening diameter is not greater than 80% of the diameter of the activated carbon particles; the short side size of the mesh of the fine leak-proof net on the pad is not greater than 50% of the diameter of the activated carbon particles.

The distance between the upper end of the first air collecting hood and the charcoal outlet is not less than 50 mm; the lower end of the first air collecting hood is closed into a cylindrical shape, and its diameter is the same as that of the air inlet of the fan.

The above-mentioned device housing is barrel-shaped and made of metal. There are several rollers on the bottom of the device housing. An inspection port is opened at the device housing corresponding to the fan, and the air inlet occupies the entire top surface of the device housing.

Compared with other activated carbon adsorption devices, the utility model has the following advantages:

1. A gas collection device is installed on the device shell, and the gas collection device places the cover near the exhaust gas pollution source and faces the exhaust gas pollution source, which is suitable for absorbing and treating point source exhaust gas.

2. The filter screen is fixed on the cylinder body by means of card slots. It can be replaced at any time when it is used for a long time and accumulates a lot of dust, which is simple and easy to operate;

3. The exhaust gas is filtered and dedusted by the filter before being adsorbed, which can prevent the fine dust in the exhaust gas from blocking the micropores on the surface of the activated carbon and reduce the adsorption efficiency;

4. The air inlet area is equal to the cross-sectional area of the cylinder, and the air distribution is uniform, which can ensure that the pollutants in the exhaust gas are in full contact with the activated carbon particles in the device, so that the device can maintain a good adsorption efficiency;

5. The opening rate of the screen plate and the upper metal wire mesh is high, which can ensure the smooth flow of exhaust gas; the requirements for the opening size of the screen plate and the upper metal wire mesh can ensure that the activated carbon particles will not fall into the gas collection hood, which will affect the operation of the device. normal operation;

6. The maximum height of the activated carbon layer on the stencil is limited to 350mm, which can make the adsorption air flow resistance moderate and will not affect the purification effect of the device;

7. The air inlet of the fan is connected to the gas collecting hood, the air outlet and the air outlet pipe reserved on the cylinder body, and the connections between the fan and the bottom plate, the cylinder body and the bottom plate are equipped with rubber gaskets for shock absorption , which can effectively reduce the noise generated by the operation of the device.

8. The air inlet of the utility model has a large cross-sectional area and occupies the top surface of the entire device housing. When the gas enters the air inlet, the wind speed is slow, and the time spent in the dust removal filter and activated carbon adsorption layer is longer, which can enhance the exhaust gas treatment capacity of the device. .

9. When installing the dust filter, insert the bayonet from the top of the device into the reserved slot on the upper end of the cylinder. There is no additional activated carbon inlet, and the activated carbon can be added in large quantities by simply opening the filter from the top.

Description of drawings

Fig. 1 is the structural representation of the utility model.

The reference signs are: device housing 1, air inlet 11, air outlet 12, card slot 13, carbon outlet 14, dust filter 2, wire mesh 21, filter cotton 22, activated carbon adsorption layer 3, mesh plate 31. Fan 4, first gas collecting hood 5, gas collecting device 6, fixed cover 61, gas collecting pipe 62, second gas collecting hood 63, roller 7.

detailed description

Below in conjunction with accompanying drawing, the specific embodiment of the utility model is further described:

A vertical activated carbon adsorption device suitable for treating point source exhaust gas, including a device housing 1, the upper part of the device housing 1 is provided with an air inlet 11, and the lower part is provided with an air outlet 12, and the inside of the device housing 1 is sequentially arranged from top to bottom The dust removal filter screen 2, the activated carbon adsorption layer 3 and the blower fan 4 are arranged, and the upper part of the device housing 1 is provided with a gas collection device 6, which includes a fixed cover 61, a gas collection pipe 62 and a second gas collection cover 63 connected in sequence, fixed The cover 61 covers the device housing 1 to seal the edge of the device housing 1, the air inlet 11 communicates with the fixed cover 61, and the second gas collecting cover 63 is placed near the exhaust gas pollution source and the cover mouth is facing the exhaust gas pollution source.

In the embodiment, a screen 31 is provided at the bottom of the activated carbon adsorption layer 3, and the screen 31 is arranged obliquely. A layer of fine leak-proof net is placed on the screen 31. The mesh diameter of the fine leak-proof net is smaller than the diameter of the activated carbon particles in the activated carbon adsorption layer 3. The plate 31 is fixed in the device housing 1, and the device housing 1 is provided with a carbon outlet 14 at the lower end of the mesh plate 31. When the carbon outlet 14 is opened, the activated carbon particles in the activated carbon adsorption layer 3 can move along the inclined mesh plate. 31 is discharged from charcoal outlet 14.

In the embodiment, the fixed cover 61 is fixedly connected to the device casing 1 by bolts, and a gasket is provided between the fixed cover 61 and the device casing 1 .

In the embodiment, the dust filter screen 2 is assembled by two layers of wire mesh 21 and the filter cotton 22 in the middle. The inner wall of the device housing 1 is provided with a card slot 13 at the lower part of the dust filter screen 2, and the dust filter screen 2 A bayonet is provided, and the bayonet can be snapped into the slot 13 so that the dust filter 2 is detachably fixed in the device housing 1 in an openable and closable manner.

In the embodiment, a funnel-shaped first gas collecting hood 5 is arranged under the screen plate 31, and the upper end of the first gas collecting hood 5 is welded and fixed on the inner wall of the device housing 1, and the space in the device housing 1 is sealed and separated into upper and lower parts. layer, the end of the first air collecting hood 5 is connected to the air inlet of the fan 4, and the air outlet pipe of the fan 4 is communicated with the air outlet 12.

In the embodiment, the air inlet of the fan 4 is tightly connected with the end of the first air collecting hood 5, the air outlet 12 and the air outlet pipe of the fan 4, and the air outlet pipe of the fan 4 extends out of the device housing 1.

In the embodiment, the distance between the position where the upper end of the screen plate 31 is connected to the device housing 1 and the fixed position of the dust filter 2 is not less than 350 mm; the angle at which the screen plate 31 is inclined to the charcoal outlet 14 is not greater than 15° at a horizontal angle; The porosity of the screen plate 31 is not less than 80%, and the opening diameter is not greater than 80% of the diameter of the activated carbon particles; the short side size of the fine leak-proof net on the pad is not greater than 50% of the diameter of the activated carbon particles.

In the embodiment, the distance between the upper end of the first air collecting hood 5 and the charcoal outlet 14 is not less than 50mm;

In the embodiment, the device housing 1 is barrel-shaped and made of metal material. Several rollers 7 are arranged on the bottom of the device housing 1. An inspection port is provided at the device housing 1 corresponding to the fan 4. The air inlet 11 occupies the entire The top surface of the device housing 1.

The working process of the present utility model is as follows: Take the application scene in the treatment workshop as an example, if there is a point pollution source in the treatment workshop, install the gas collection device 6 on the upper part of the device housing 1, and put the second gas collection cover 63 directly against the point pollution source , start the device, the fan 4 operates, the second air collecting hood 63 sucks the air, the air passes through the second air collecting hood 63, the air collecting pipe 62, the fixed cover 61, the air inlet 11 in turn, and then reaches the dust filter 2, the dust filter 2. Remove the dust in the air, and then the air passes through the dust removal filter 2 and flows through the activated carbon adsorption layer 3. After the air is purified by the activated carbon adsorption layer 3, it passes through the fan 4 and is blown out from the air outlet 12.

The above are only preferred implementations of the utility model, and the scope of protection of the utility model is not limited to the above-mentioned embodiments, and all technical solutions under the thinking of the utility model all belong to the scope of protection of the utility model. It should be pointed out that for those of ordinary skill in the art, some improvements and modifications without departing from the principle of the utility model should be regarded as the protection scope of the utility model.

Claims (9)

1. a kind of be suitable to process point source waste gas vertical absorbent charcoal adsorber, including device case (1), it is characterised in that： Described device case (1) top offers air inlet (11), and bottom offers air outlet (12), described device case (1) Dedusting filter screen (2), activated carbon adsorption layer (3) and blower fan (4), described device case (1) top are inside from top to bottom laid successively Gas collecting apparatus (6) is provided with, described gas collecting apparatus (6) includes fixed cover (61), the discharge (62) and second being sequentially communicated Gas skirt (63), described fixed cover (61) are covered on device case (1), by device case (1) edge seal, air inlet (11) Connect with fixed cover (61), described the second gas skirt (63) is placed near exhaust emission source and by cover mouth just to exhaust emission Source.

2. a kind of vertical absorbent charcoal adsorber for being suitable to process point source waste gas according to claim 1, its feature exists In：Described activated carbon adsorption layer (3) bottom is provided with web plate (31), and described web plate (31) is obliquely installed, and web plate (31) is upper to be padded Have one layer fine and closely woven anti-slip through the net, the fine and closely woven anti-mesh diameter that slips through the net is less than the activated carbon granule diameter in activated carbon adsorption layer (3), institute The web plate (31) that states is fixed in device case (1), and described device case (1) offers carbon outleting port in the low side of web plate (31) (14), when, described carbon outleting port (14) is opened, the activated carbon granule in activated carbon adsorption layer (3) can be along the web plate (31) for inclining Discharge from carbon outleting port (14).

3. a kind of vertical absorbent charcoal adsorber for being suitable to process point source waste gas according to claim 2, its feature exists In：Described fixed cover (61) is fixedly connected with device case (1) by bolt, between fixed cover (61) and device case (1) It is provided with sealing gasket.

4. a kind of vertical absorbent charcoal adsorber for being suitable to process point source waste gas according to claim 3, its feature exists In：Described dedusting filter screen (2) is assembled jointly by the filter cotton (22) of upper and lower double layer of metal silk screen (21) and centre, described The inwall of device case (1) in dedusting filter screen (2) lower position, draw-in groove (13) is set, described dedusting filter screen (2) is arranged Bayonet socket, described bayonet socket can be snapped in be made dedusting filter screen (2) detachable or can be opened and closed to be fixed on device case (1) in draw-in groove (13) In.

5. a kind of vertical absorbent charcoal adsorber for being suitable to process point source waste gas according to claim 4, its feature exists In：Described web plate (31) has funnel shaped first gas skirt (5), and described the first gas skirt (5) upper end is welded and fixed On device case (1) inwall, the space sealing in device case (1) is divided into upper and lower two-layer, the first described gas skirt (5) end is connected with blower fan (4) air inlet, and the escape pipe of described blower fan (4) is connected with air outlet (12).

6. a kind of vertical absorbent charcoal adsorber for being suitable to process point source waste gas according to claim 5, its feature exists In：Make between described blower fan (4) air inlet and the escape pipe of the first gas skirt (5) end, air outlet (12) and blower fan (4) Closely connected with flexible pipe, escape pipe extending apparatus housing (1) of blower fan (4).

7. a kind of vertical absorbent charcoal adsorber for being suitable to process point source waste gas according to claim 6, its feature exists In：The position that described web plate (31) upper end is connected with device case (1), the distance between fixed position with dedusting filter screen (2) It is not less than 350mm；Web plate (31) is not more than 15 to the angle that carbon outleting port (14) is inclined with level angle；Web plate (31) porosity 80% is not less than, open pore size is not more than the 80% of activated carbon granule diameter；The fine and closely woven anti-mesh short side dimension that slips through the net of upper pad, No more than activated carbon granule diameter 50%.

8. a kind of vertical absorbent charcoal adsorber for being suitable to process point source waste gas according to claim 7, its feature exists In：The distance between described the first gas skirt (5) upper end and carbon outleting port (14) are not less than 50mm；First gas skirt (5) lower end Cylindrical shape is closed up into, its diameter is identical with blower fan (4) air inlet.

9. a kind of vertical absorbent charcoal adsorber for being suitable to process point source waste gas according to claim 1, its feature exists In：Described device case (1) in drum-shaped, is metal material, and the bottom of device case (1) is provided with several rollers (7), with Corresponding device case (1) place of blower fan (4) offers access hole, and described air inlet (11) occupies whole device housing (1) Top surface.