CN212167449U - Active carbon desorption device - Google Patents

Abstract

The utility model relates to the technical field of chemical organic waste gas treatment, and discloses an activated carbon desorption device, which comprises a desorption device, wherein the desorption device is provided with a jacket, a feed inlet, a discharge outlet, a steam inlet, a steam outlet, an air inlet, an air outlet, a condensed water outlet and a communicating pipe; the desorption tail gas treatment unit comprises a thermal power incinerator and an air heater. The utility model discloses no wastewater discharge is favorable to the environmental protection, can fully retrieve the heat in the burning tail gas, carries out cyclic utilization to heat energy, greatly reduced the cost of active carbon particle desorption, the desorption is effectual.

Description

Active carbon desorption device

Technical Field

The utility model relates to a chemical industry organic waste gas handles technical field, especially relates to an active carbon desorption device.

Background

The organic waste gas is effectively purified by adsorption and purification of activated carbon, the activated carbon is a porous carbon-containing substance and has a highly developed void structure, good surface adsorption activity and huge specific surface area, but based on the limitation of adsorption capacity of the activated carbon, the activated carbon needs desorption and regeneration after being adsorbed for a period of time to reach saturation, otherwise, the operation cost is high, a large amount of waste is generated, and the adsorption and purification effect is poor. Granular activated carbon is a commonly used form, and saturated activated carbon is usually desorbed by hot air heating or steam heating. The heated desorption temperature of the hot air cannot be too high, so that the risk of fire is caused; high desorption temperature by steam heating, mature technology and good desorption effect. The existing steam desorption method is to condense the desorbed organic matters, separate the organic matters and then treat the wastewater, and thus the problem of water pollution is caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the prior technical problem, the utility model provides an active carbon desorption device.

In order to achieve the above object, the utility model provides a following technical scheme: an activated carbon desorption device comprises a desorption device, wherein the desorption device is provided with a jacket, a feed inlet, a discharge outlet, a steam inlet, a steam outlet, an air inlet, an air outlet, a condensed water outlet and a communicating pipe; the desorption tail gas processing unit comprises a thermal power incinerator and an air heater, wherein the thermal power incinerator is provided with an incinerator inlet and an incinerator outlet, the air heater is provided with an air inlet, an air outlet, a heater inlet and a heater outlet, the incinerator inlet is connected with a steam outlet pipe and is connected with an air inlet pipe A, the incinerator outlet is connected with the heater inlet, the air inlet is connected with an air inlet pipe B, and the air outlet is connected with an air inlet of the desorption device.

Preferably, a feed valve is arranged at the feed inlet, and the feed inlet is connected with a storage bin through an air conveying feed pipe.

Preferably, discharge gate department is equipped with the bleeder valve, and the discharge gate below is equipped with and connects the workbin.

Preferably, the steam inlet is provided with a steam inlet valve, the steam outlet is provided with a steam outlet valve, the steam outlet pipe is provided with a pressure control valve, the air inlet is provided with an air inlet valve, and the air outlet is provided with an exhaust valve.

Preferably, the condensed water outlet is provided with a drain valve, and the exhaust port is connected with a dust remover.

Preferably, be equipped with the tapered hole board in the desorption ware, the tapered hole board divide into the desorption room of top and the heating chamber of below with the desorption ware, desorption room and feed inlet, steam outlet, gas vent intercommunication, desorption indoor charge level indicator and the unloading position indicator of being equipped with, heating chamber and communicating pipe, discharge gate, air inlet intercommunication are equipped with gas passing hole and blanking mouth on the tapered hole board, the center of tapered hole board is located to the blanking mouth, and the blanking mouth top cover is equipped with the awl cover, the awl cover is connected with the awl cover cylinder.

The utility model discloses in, the vapor with certain pressure heats saturated activated carbon particle, activated carbon particle adsorbed organic matter is because the temperature risees and releases and form desorption tail gas along with vapor, desorption tail gas carries out high temperature oxidation reaction with the air and forms high temperature's burning tail gas, wherein organic matter is by oxidation to become water and carbon dioxide and obtain purifying, the principal ingredients of burning tail gas are air, vapor and carbon dioxide, burning tail gas directly discharges after heat recovery, and the air through burning tail gas heating then can be used for the drying of desorption back activated carbon particle.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the desorption tail gas is treated by a thermal incineration method, organic matters in the desorption tail gas are oxidized and purified at high temperature, no wastewater is discharged, equipment and cost for subsequent wastewater treatment are saved, and the method is beneficial to environmental protection;

(2) the heat in the combustion tail gas obtained after the organic matter is oxidized at high temperature can be fully recovered, and the heat energy can be recycled, so that the cost of activated carbon particle desorption is greatly reduced;

(3) the intermittent feeding of the activated carbon particles can ensure that the activated carbon particles are heated uniformly and the desorption effect is good.

Drawings

FIG. 1 is a schematic structural view of example 1.

Fig. 2 is an enlarged schematic view at a in fig. 1.

In the figure: the device comprises a desorption device 1, a jacket 2, a feed inlet 3, a discharge outlet 4, a steam inlet 5, a steam outlet 6, an air inlet 7, an air outlet 8, a condensed water outlet 9, a communicating pipe 10, a water vapor outlet pipe 11, a thermal power incinerator 12, an air heater 13, an air inlet pipe 14A, an air inlet pipe 15B, an air blowing feed pipe 16, a storage bin 17, a material receiving box 18, a dust remover 19, a material loading level indicator 20, a material discharging level indicator 21, a conical hole plate 2222, an air passing hole 23, a material dropping port 24, a conical cover 25 and a conical cover cylinder 26.

Detailed Description

The embodiments of the present invention will be further explained with reference to the drawings.

Example 1

Referring to fig. 1-2, an activated carbon desorption device comprises a desorption device 1, wherein the desorption device 1 is provided with a jacket 2, a feed inlet 3, a discharge outlet 4, a steam inlet 5, a steam outlet 6, an air inlet 7, an air outlet 8, a condensed water outlet 9 and a communicating pipe 10, the feed inlet 3, the discharge outlet 4, the steam outlet 6, the air inlet 7 and the air outlet 8 are all communicated with the inside of the desorption device 1, the steam inlet 5 and the condensed water outlet 9 are all communicated with the jacket 2, the communicating pipe 10 communicates the inside of the desorption device 1 with the jacket 2, and the steam outlet 6 is connected with a desorption tail gas treatment unit through a steam outlet pipe 11. Desorption tail gas processing unit includes thermal power incinerator 12, air heater 13, thermal power incinerator 12 is equipped with incinerator import and incinerator export, air heater 13 is equipped with air intlet, air outlet, heater import, heater export, the incinerator import is connected and is connected with vapor outlet pipe 11 and has air inlet pipe A14, the incinerator export is connected with heater access, air intlet is connected with air inlet pipe B15, air outlet is connected with the air inlet 7 of desorber 1.

The feed inlet 3 department is equipped with the feed valve, and feed inlet 3 is connected with feed bin 17 through pneumatic conveying inlet pipe 16.

Discharge gate 4 department is equipped with the bleeder valve, and discharge gate 4 below is equipped with and connects workbin 18.

Steam inlet 5 department is equipped with the steam inlet valve, 6 departments of steam outlet are equipped with the steam outlet valve, be equipped with the pressure control valve on the steam outlet pipe 11, air inlet 7 departments are equipped with the admission valve, 8 departments of gas vent are equipped with discharge valve.

The condensed water outlet 9 is provided with a drain valve, and the exhaust port 8 is connected with a dust remover 19.

Be equipped with tapered orifice 22 in desorption ware 1, tapered orifice 22 will desorb ware 1 and divide into the desorption room of top and the heating chamber of below, desorption room and feed inlet 3, steam outlet 6, 8 intercommunications in the gas vent, indoor charge level indicator 20 and the charge level indicator 21 of being equipped with of desorption, heating chamber and communicating pipe 10, discharge gate 4, air inlet 7 intercommunication are equipped with gas pocket 23 and blanking mouth 24 on the tapered orifice 22, the center of tapered orifice 22 is located to blanking mouth 24, and 24 top covers of blanking mouth is equipped with awl cover 25, awl cover 25 is connected with awl cover cylinder 26. In this embodiment, the discharge port 4 is provided right below the blanking port 24.

In this embodiment, desorption ware 1 is a closed pressure-bearing container, and during the operation, closes bleeder valve, vapor inlet valve, vapor outlet valve, admission valve earlier, opens charge-in valve and discharge valve, and the active carbon granule is in desorption room that desorption ware 1 was inhaled from feed bin 17 under the effect of fan, and when the material level of active carbon granule reached the material loading level in desorption ware 1, close discharge valve and charge-in valve, stopped the feeding. Opening a steam inlet valve and a steam outlet valve, wherein steam firstly enters the jacket 2 of the desorption device 1 to heat the shell of the desorption device 1, and condensed water generated during heating the shell is discharged from a condensed water outlet 9 through a drain valve, so that the condensed water generated by heating and radiating the shell is prevented from entering active carbon particles; the water vapor enters the heating chamber of the desorption device 1 through the communicating pipe 10, and then enters the desorption chamber through the air holes 23 on the conical pore plate 22 to heat the activated carbon particles. The arrangement of the conical pore plate 22 in the desorption device 1 can ensure that the water vapor fully enters the inside of the activated carbon particles from top to bottom, thereby realizing the full heating of the activated carbon particles, improving the heat utilization rate and improving the heating effect. The organic matters desorbed by heating are discharged from the steam outlet 6 along with the steam and enter the thermal incinerator 12 through the steam outlet pipe 11 for high-temperature oxidation purification. The steam outlet pipe 11 is provided with a pressure control valve which can ensure a certain pressure in the desorption device 1. In the thermal power incinerator 12, the organic matter is oxidized into water and carbon dioxide to be purified, and high-temperature combustion tail gas is obtained, and the high-temperature combustion tail gas is directly discharged after heating air by the air heater 13 to recover heat therein. When the activated carbon particles in the desorber 1 meet the desorption requirement, discharging the redundant steam in the desorber 1, then closing the steam inlet valve and the steam outlet valve, opening the air inlet valve and the exhaust valve, and drying the activated carbon particles by using hot air heated by the air heater 13 to finish the desorption regeneration process. After the drying is finished, the discharge valve is opened, the conical cover cylinder 26 is started, the conical cover cylinder 26 is moved upwards, the activated carbon particles fall into the heating chamber from the blanking port 24 and are discharged into the material receiving box 18 from the discharge port 4, when the material level of the activated carbon particles in the desorption device 1 falls to the material level, the air inlet valve and the discharge valve are closed, the conical cover 25 is returned to the initial position, and the discharging is stopped. Finally, the feed valve is opened to feed again for the next desorption cycle. In this embodiment, all valves are automatic valves, and the automatic cycle operation is controlled by a computer or a PLC, which is the prior art and is not described in detail. In the whole process, the gas discharged from the gas outlet 8 can be directly discharged after being dedusted by the deduster 19, and the atmosphere is not polluted.

The foregoing description of the embodiments of the invention has been presented for purposes of illustration and not limitation, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the illustrated embodiments.

Claims (6)

1. The utility model provides an active carbon desorption device, includes the desorption ware, its characterized in that: the desorption device is provided with a jacket, a feed inlet, a discharge outlet, a steam inlet, a steam outlet, an air inlet, an air outlet, a condensed water outlet and a communicating pipe, wherein the feed inlet, the discharge outlet, the steam outlet, the air inlet and the air outlet are all communicated with the inside of the desorption device; the desorption tail gas processing unit comprises a thermal power incinerator and an air heater, wherein the thermal power incinerator is provided with an incinerator inlet and an incinerator outlet, the air heater is provided with an air inlet, an air outlet, a heater inlet and a heater outlet, the incinerator inlet is connected with a steam outlet pipe and is connected with an air inlet pipe A, the incinerator outlet is connected with the heater inlet, the air inlet is connected with an air inlet pipe B, and the air outlet is connected with an air inlet of the desorption device.

2. The activated carbon desorption device according to claim 1, wherein: the feed inlet department is equipped with the feed valve, and the feed inlet is connected with the feed bin through the air-assisted feed pipe.

3. The activated carbon desorption device according to claim 1, wherein: discharge gate department is equipped with the bleeder valve, and the discharge gate below is equipped with and connects the workbin.

4. The activated carbon desorption device according to claim 1, wherein: the steam inlet is provided with a steam inlet valve, the steam outlet is provided with a steam outlet valve, the steam outlet pipe is provided with a pressure control valve, the air inlet is provided with an air inlet valve, and the air outlet is provided with an exhaust valve.

5. The activated carbon desorption device according to claim 1, wherein: and a drain valve is arranged at the condensed water outlet, and the exhaust port is connected with a dust remover.

6. The activated carbon desorption device according to claim 1, wherein: be equipped with the tapered hole board in the desorption ware, the tapered hole board divide into the desorption room of top and the heating chamber of below with the desorption ware, desorption room and feed inlet, steam outlet, gas vent intercommunication, desorption indoor charge level indicator and the unloading charge level indicator of being equipped with, heating chamber and communicating pipe, discharge gate, air inlet intercommunication are equipped with gas pocket and blanking mouth on the tapered hole board, the center of tapered hole board is located to the blanking mouth, and the blanking mouth top cover is equipped with the awl cover, the awl cover is connected with awl cover cylinder.

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