CN216259923U

CN216259923U - Treatment system for absorbing VOCs (volatile organic compounds) and odor by activated carbon and combining ectopic regeneration

Info

Publication number: CN216259923U
Application number: CN202122977762.5U
Authority: CN
Inventors: 李玉忠; 甘宗伟
Original assignee: Shandong Nenggong Low Carbon Technology Co ltd
Current assignee: Shandong Nenggong Low Carbon Technology Co ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-04-12
Anticipated expiration: 2031-11-30

Abstract

The utility model discloses a treatment system for absorbing VOCs (volatile organic compounds) by activated carbon and combining odor with ectopic regeneration, which comprises an activated carbon absorption device, an activated carbon regeneration device and a burner, wherein a cooling part is arranged in the activated carbon absorption device, the cooling part divides the space in the activated carbon absorption device into an activated carbon containing space and a coolant space, a heating part is arranged in the activated carbon regeneration device, the activated carbon containing space is used for containing activated carbon before absorption, and the activated carbon regeneration device is used for containing activated carbon after absorption; the air inlet of the activated carbon adsorption device is used for connecting an air outlet of a factory building and/or a warehouse; the active carbon outlet of the active carbon adsorption device is matched with the active carbon inlet of the active carbon regeneration device, the active carbon inlet of the active carbon adsorption device is matched with the active carbon outlet of the active carbon regeneration device, the coolant space of the active carbon adsorption device is connected with a cold source, the active carbon regeneration device is provided with a gas carrying port and an exhaust port, and the exhaust port of the active carbon regeneration device is connected with a burner.

Description

Treatment system for absorbing VOCs (volatile organic compounds) and odor by activated carbon and combining ectopic regeneration

Technical Field

The utility model belongs to the technical field of advanced environment protection, and relates to a treatment system for absorbing VOCs (volatile organic chemicals) by active carbon and combining odor with ectopic regeneration.

Background

The information in this background section is only for enhancement of understanding of the general background of the utility model and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art that is already known to a person of ordinary skill in the art.

A large amount of VOCs and odor exist in different plants and warehouses due to the storage of materials. Because the active carbon has adsorption activity, the active carbon can be placed in different factories and warehouses for adsorption. The adsorption capacity of the activated carbon is limited, and unlimited adsorption is not possible, so that the activated carbon placed in a factory building or a warehouse needs to be replaced at regular time to avoid the emission of VOCs and odor to the atmosphere. However, the materials stored in different plants and warehouses are different, and the amounts of generated VOCs and odor are different, so that the replacement time of the activated carbon placed in different plants and warehouses is different, enterprise managers need to replace the activated carbon placed in different plants and warehouses in time according to different replacement times, otherwise, the problem that the VOCs and the odor are discharged to the atmosphere exists, and the labor intensity of the enterprise managers is high. Meanwhile, the cost is higher if the adsorbed activated carbon is directly discarded.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model aims to provide a treatment system for absorbing VOCs (volatile organic compounds) by activated carbon and performing ectopic regeneration by combining odor, which can not only recycle the activated carbon, reduce the proportion of nearly saturated activated carbon in the VOCs absorption process and improve the waste gas treatment efficiency, but also perform the same treatment in the activated carbon desorption regeneration process so as to avoid overlarge labor intensity of enterprise managers.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

a treatment system for absorbing VOCs (volatile organic compounds) and odor by activated carbon and realizing heterotopic regeneration by combining the VOCs and the odor comprises an activated carbon absorption device, an activated carbon regeneration device and a burner, wherein a cooling part is arranged in the activated carbon absorption device, the cooling part divides the space in the activated carbon absorption device into an activated carbon containing space and a coolant space, a heating part is arranged in the activated carbon regeneration device, the activated carbon containing space is used for containing activated carbon before absorption, and the activated carbon regeneration device is used for containing the activated carbon after absorption;

the air inlet of the activated carbon adsorption device is used for connecting an air outlet of a factory building and/or a warehouse;

the active carbon outlet of the active carbon adsorption device is matched with the active carbon inlet of the active carbon regeneration device, the active carbon inlet of the active carbon adsorption device is matched with the active carbon outlet of the active carbon regeneration device, the coolant space of the active carbon adsorption device is connected with a cold source, the active carbon regeneration device is provided with a gas carrying port and an exhaust port, and the exhaust port of the active carbon regeneration device is connected with a burner.

The activated carbon adsorption device is arranged to collect waste gases such as VOCs, odor and the like dispersed in a factory building and/or a warehouse through activated carbon adsorption, and then the adsorbed activated carbon is conveyed to the activated carbon regeneration device for uniform desorption and regeneration. The concentration of VOCs and odor in the desorbed gas is high, and the desorbed gas can be used as fuel of a burner for combustion treatment, so that the treatment of VOCs and odor is realized. The active carbon after desorption is carried back to the active carbon adsorption device and continues to adsorb and collect waste gases such as VOCs and foul smell in factory building and/or warehouse, cyclic utilization active carbon to reduce the nearly saturated active carbon's of VOCs adsorption process proportion, improved exhaust-gas treatment's efficiency.

Because the waste gas such as VOCs and foul smell of each factory building and/or warehouse are unified to be carried to active carbon adsorption device to active carbon desorption regeneration process is unified to be disposed in active carbon regeneration device, need not that the managers of enterprise need in time change the active carbon that different factory buildings and warehouses placed according to the change time of difference, reduces managers's of enterprise intensity of labour.

Because the adsorption performance of the activated carbon is poor at a higher temperature, and the activated carbon can continuously release heat in the process of adsorbing VOCs, odor and other waste gases, the cooling part is arranged in the activated carbon adsorption device, so that the heat released by the activated carbon in the process of adsorbing VOCs, odor and other waste gases is absorbed, and the high adsorption efficiency of the activated carbon is ensured.

According to the utility model, the raw materials with poor adsorption effects of the activated carbon on VOCs and odor under the high-temperature condition are utilized, the heating component is arranged in the activated carbon regeneration device, and heating desorption is carried out, so that high-concentration VOCs and odor are formed, and the treatment of the VOCs and the odor is facilitated.

The utility model has the beneficial effects that:

1. according to the utility model, the waste gas is collected by the activated carbon adsorption device and desorbed by the activated carbon regeneration device, so that the VOCs and the odor are enriched to form high-concentration VOCs and odor waste gas, the treatment effect of the high-concentration VOCs waste gas is far better than that of the low-concentration waste gas, and the heat storage combustion device can be constantly in a high-efficiency operation state. Meanwhile, the centralized processing mode can greatly reduce the VOCs treatment and operation cost of users of medium and small enterprises.

2. The utility model adopts the burner to carry out heat storage combustion to treat the waste gas, has high treatment efficiency, is almost suitable for all the waste gas and does not generate solid waste.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model.

FIG. 1 is a schematic structural diagram of an abatement system for VOCs adsorption and odor combined ex-situ regeneration according to example 1 of the present invention;

FIG. 2 is a schematic structural diagram of a treatment system for VOCs adsorption and odor combined ex-situ regeneration in example 2 of the present invention;

FIG. 3 is a schematic structural diagram of a treatment system for VOCs adsorption and odor combined ex-situ regeneration by activated carbon in example 3 of the present invention;

the system comprises a workshop 1, a plant 2, an active carbon adsorption device 3, an active carbon regeneration device 4, a combustor 5, a cooling coil 6, a cold source 7, an induced draft fan 8, a blower 9 and a heating jacket.

Detailed Description

It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the utility model as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the utility model. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

In view of the problems that the active carbon placed in different plants and warehouses is difficult to replace in time, the cost of directly abandoning the adsorbed active carbon is high and the like, the utility model provides a treatment system for absorbing VOCs by the active carbon and combining the odor with ectopic regeneration.

The utility model provides a treatment system for absorbing VOCs (volatile organic compounds) by activated carbon and combining ectopic regeneration with odor, which comprises an activated carbon absorption device, an activated carbon regeneration device and a burner, wherein a cooling part is arranged in the activated carbon absorption device, the cooling part divides the space in the activated carbon absorption device into an activated carbon containing space and a coolant space, a heating part is arranged in the activated carbon regeneration device, the activated carbon containing space is used for containing activated carbon before absorption, and the activated carbon regeneration device is used for containing the activated carbon after absorption;

The utility model is provided with the activated carbon adsorption device, the activated carbon regeneration device and the burner, can intensively desorb and regenerate the dispersed activated carbon of low-concentration VOCs and odor in plants and/or warehouses after the activated carbon adsorption of the low-concentration VOCs and odor reaches saturation, and form high-concentration VOCs and odor to perform heat storage combustion treatment, thereby not only reducing the proportion of nearly saturated activated carbon in the VOCs adsorption process and improving the waste gas treatment efficiency, but also solving the problem that the activated carbon placed in different plants and warehouses is difficult to replace in time.

The cooling part is arranged in the active carbon adsorption device, so that the heat emitted by the active carbon in the process of adsorbing VOCs, odor and other waste gases is absorbed, and the high adsorption efficiency of the active carbon is ensured. Set up the heater block in active carbon regenerating unit simultaneously, thereby heat desorption and form high concentration VOCs and foul smell, more be favorable to VOCs and foul smell to be handled.

The cooling component can be a coil, a heat exchange plate, a tube array and the like, and a pipeline in the coil, a space in the heat exchange plate and a pipeline in the tube array are coolant spaces.

The activated carbon adsorption device and the activated carbon regeneration device can be connected by a pipeline by using an auger conveyor and can also be transported by a transport vehicle. In some examples of this embodiment, the activated carbon adsorption unit and the activated carbon regeneration unit are transported by a transport vehicle. The conveying vehicle is adopted for conveying, is more suitable for long-distance conveying, reduces pipeline arrangement and is flexible in conveying.

In some examples of this embodiment, the activated carbon adsorption unit exhaust port is provided with an induced draft fan. The waste gas collecting device is used as a power source for collecting waste gas such as VOCs, odor and the like in a factory building and/or a warehouse. The power source can be arranged at the air inlet of the active carbon adsorption device and also can be arranged at the air outlet of the active carbon adsorption device. When the gas inlet is arranged, the gas is conveyed by increasing the pressure of the gas inlet; and the pressure of the exhaust port is reduced to realize the gas delivery. The pressure of the exhaust port is reduced, so that the exhaust of gas in active carbon pores is facilitated, and the adsorption of waste gases such as VOCs (volatile organic chemicals), odor and the like is facilitated. Therefore, the utility model selects to arrange the induced draft fan at the exhaust port of the active carbon adsorption device to improve the adsorption effect.

In some examples of this embodiment, the air inlet of the activated carbon adsorption unit is disposed at a lower portion of a sidewall of the activated carbon adsorption unit. The active carbon holds and forms the active carbon adsorption layer in active carbon adsorption device, and the air inlet setting is in the lower part of lateral wall, and gaseous follow lower part gets into, more is favorable to the utilization of active carbon.

In one or more embodiments, the exhaust port of the activated carbon adsorption unit is disposed at an upper portion of the activated carbon adsorption unit. Is more beneficial to the full utilization of the active carbon.

In some examples of this embodiment, the exhaust of the activated carbon adsorption unit is fitted with a VOCs monitoring device. The amount of activated carbon in the activated carbon adsorption device can be controlled according to the detected exhaust gas; and also can provide basis for the adsorbed activated carbon to enter an activated carbon regeneration device.

The heating component can be an electric heating component, and can also be a coil pipe, a heat exchange plate, a tube nest and other heat exchange components. In some embodiments of this embodiment, the heating component is a heat exchange component. The heat source is more abundant, can reduce cost.

In one or more embodiments, the flue of the burner is connected to a heat exchange member. The hot flue gas of the combustor is used as a heat source to heat the activated carbon regeneration device, so that the heat in the flue gas can be recovered, and the heat efficiency is improved.

In one or more embodiments, the flue of the burner is connected to a chimney.

In some examples of this embodiment, the carrier gas port of the activated carbon regeneration device is provided with a blower.

In order to make the technical solutions of the present invention more clearly understood by those skilled in the art, the technical solutions of the present invention will be described in detail below with reference to specific embodiments.

Example 1

An active carbon adsorption VOCs and odor combined ex-situ regeneration treatment system is shown in figure 1 and comprises an active carbon adsorption device 2, an active carbon regeneration device 3 and a burner 4.

Set up cooling coil 5 in the active carbon adsorption device 2, cooling coil 5's access connection cold source 6 holds the cooling brine in the cold source 6. The cooling brine is delivered into the cooling coil 5 by a cooling water pump. The air inlet of the active carbon adsorption device 2 is connected with the air outlet of the factory building 1. The air outlet of the active carbon adsorption device 2 is connected with an induced draft fan 7.

An electric heater is arranged in the activated carbon regeneration device 3. The carrier gas port of the activated carbon regeneration apparatus 3 is provided with a blower 8. The exhaust port of the activated carbon regeneration device 3 is connected with a burner 4.

The activated carbon in the activated carbon adsorption device 2 and the activated carbon regeneration device 3 is conveyed by a transport vehicle.

The working process is as follows:

low-concentration waste gas (the concentration that contains VOCs and foul smell is lower) in the factory building discharges to active carbon adsorption device 2, fills granular activated carbon and active carbon fiber in active carbon adsorption device 2, adsorbs VOCs and foul smell in the waste gas through granular activated carbon and active carbon fiber for waste gas is purified, thereby discharges into the atmosphere. Because the adsorption process can constantly release heat, so the rising of temperature can lead to adsorption efficiency to descend, and the cooling brine gets into in active carbon adsorption device 2's cooling coil 5, cools off active carbon adsorption device 2 to keep the high adsorption efficiency of granular active carbon and active carbon fiber.

When the adsorption of the granular activated carbon and the activated carbon fiber reaches saturation, the granular activated carbon and the activated carbon fiber are unloaded to a transport vehicle, transported to the activated carbon regeneration device 3 through the transport vehicle, and then filled into the activated carbon regeneration device 3. The waste gas is heated to 150-200 ℃ by an electric heater, VOCs and odor adsorbed in the granular activated carbon and activated carbon fiber are desorbed by a blower 8, high-concentration waste gas (containing VOCs and odor with higher concentration) is formed and conveyed to a combustor for combustion, and therefore treatment of VOCs and odor is achieved. Meanwhile, the granular activated carbon and the activated carbon fiber are regenerated, then the regenerated granular activated carbon and the regenerated activated carbon fiber are unloaded to a transport vehicle and are conveyed to the activated carbon adsorption device 2 through the transport vehicle, then the regenerated granular activated carbon and the regenerated activated carbon fiber are unloaded and filled into the activated carbon adsorption device 2, and the adsorption treatment is continuously carried out.

Example 2

This example is the same as example 1 except that, as shown in FIG. 2, a heating jacket is provided on the outer wall of the activated carbon regeneration apparatus 3, and the flue of the burner 4 is connected to a heating jacket 9. The activated carbon regeneration device 3 is heated by hot flue gas. Auxiliary fuel (e.g., natural gas, etc.) is added to the combustor 4. The combustion effect of the burner 4 is ensured by the auxiliary fuel, and the treatment effect on VOCs and odor is further increased. The flue gas of the combustor 4 contains higher waste heat, and the flue gas of the combustor 4 enters the heating jacket 9 to heat the activated carbon regeneration device 3, so that the full utilization of energy is realized. When the flue gas of the burner 4 is insufficient, other auxiliary heat (e.g., hot air) can be used to heat the activated carbon regeneration device 3.

Example 3

This example is the same as example 2 except that, as shown in fig. 3, the air inlet of the activated carbon adsorption device 2 is provided at the lower part of the side wall of the activated carbon adsorption device, and the air outlet of the activated carbon adsorption device 2 is provided at the upper part of the activated carbon adsorption device. The gas enters from the lower part and is discharged from the upper part, which is beneficial to the utilization of granular activated carbon and activated carbon fiber. The VOCs detector (not shown) is installed at the exhaust port of the activated carbon adsorption device 2. When the VOCs in the exhaust gas exceed the standard, granular activated carbon and activated carbon fibers are added into the activated carbon adsorption device 2.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A treatment system for absorbing VOCs (volatile organic compounds) and odor by activated carbon and combining ectopic regeneration is characterized by comprising an activated carbon absorption device, an activated carbon regeneration device and a burner, wherein a cooling part is arranged in the activated carbon absorption device, the cooling part divides the space in the activated carbon absorption device into an activated carbon containing space and a coolant space, a heating part is arranged in the activated carbon regeneration device, the activated carbon containing space is used for containing activated carbon before absorption, and the activated carbon regeneration device is used for containing the activated carbon after absorption;

2. The system of claim 1 wherein the activated carbon adsorption and odor gas combination ex situ regeneration remediation system is configured for transport between the activated carbon adsorption unit and the activated carbon regeneration unit via a transport vehicle.

3. The system for the treatment of VOCs and odor associated with ectopic regeneration through activated carbon adsorption according to claim 1, wherein an induced draft fan is arranged at an exhaust port of the activated carbon adsorption device.

4. The system of claim 1 wherein the inlet of the activated carbon adsorption unit is disposed at a lower portion of the sidewall of the activated carbon adsorption unit.

5. The system of claim 4 wherein the exhaust port of the activated carbon adsorption unit is disposed at the top of the activated carbon adsorption unit.

6. The system of claim 1 wherein the activated carbon adsorption apparatus is equipped with a VOCs monitoring device at the exhaust port.

7. The system of claim 1 wherein the heating element is a heat exchange element.

8. The system of claim 7 wherein the flue of the burner is connected to a heat exchange element.

9. The system of claim 7 wherein the flue of the burner is connected to a chimney.

10. The system of claim 1 wherein the carrier gas port of the activated carbon regenerator is provided with a blower.