CN211800004U - VOCS organic waste gas's processing system - Google Patents
VOCS organic waste gas's processing system Download PDFInfo
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- CN211800004U CN211800004U CN202020121313.3U CN202020121313U CN211800004U CN 211800004 U CN211800004 U CN 211800004U CN 202020121313 U CN202020121313 U CN 202020121313U CN 211800004 U CN211800004 U CN 211800004U
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Abstract
The utility model discloses a VOCS organic waste gas treatment system, which comprises a VOCS absorption system, an absorption liquid circulating system, an alkali liquor supply system, an absorption liquid primary water treatment system and an oxidation fan; the VOCS absorption system comprises a high-efficiency activated carbon adsorption device, an alkali spray absorption tower and a VOCS online monitoring device; the oxidation fan is positioned at the gas inlet; a high-efficiency activated carbon adsorption device is arranged behind the oxidation fan; an alkali spray absorption tower is arranged behind the high-efficiency activated carbon adsorption device; a spraying device is arranged above the alkali spraying absorption tower; a demisting device is arranged at the top of the alkali spray absorption tower close to the outlet; and a VOCS (volatile organic Compounds) online monitoring device is arranged at the outlet of the alkali spray absorption tower. The utility model discloses an install alkali spray absorption tower additional to the acid component in the neutralizing gas installs PH on-line monitoring system additional simultaneously, adds subsidiary facilities such as preliminary water treatment pond, has prolonged active carbon life, reaches the purpose of practicing thrift manufacturing cost, protection operation workman is healthy and atmospheric environment.
Description
Technical Field
The utility model belongs to the technical field of the environment is administered, especially, VOCS organic waste gas's processing system.
Background
The VOCS treatment system of the company is applied to a doctor blade packaging working section, based on the production characteristics of the company, a doctor blade packaging workshop is the only exposure working section of the series of products, in order to protect the health of operators and the environment, the VOCS treatment system of the company at present adopts a mode of forced air circulation and high-efficiency activated carbon adsorption, but during the use of the system, the activated carbon needs to be frequently replaced, the use lasts for about 1 month, an online monitoring system can give an alarm, the activated carbon can only be replaced, the VOCS treatment system is very not beneficial to the control of the production cost, and through identification, the gas which causes the VOCS to be too high is found to be acidic, so that the activated carbon is frequently replaced, and the enterprise cost is increased. Therefore, it is an urgent problem to provide a system for treating VOCS organic waste gas.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the shortcoming among the prior art, provide a VOCS organic waste gas's processing system to extension active carbon life reaches the purpose of practicing thrift manufacturing cost, protection operating personnel healthy and atmospheric environment.
In order to solve the technical problem, the utility model provides a following technical scheme:
a VOCS organic waste gas treatment system comprises a VOCS absorption system, an absorption liquid circulating system, an alkali liquor supply system, an absorption liquid primary water treatment system and an oxidation fan; the VOCS absorption system comprises a high-efficiency activated carbon adsorption device, an alkali spray absorption tower and a VOCS online monitoring device; the oxidation fan is connected with the inlet of the high-efficiency activated carbon adsorption device through a relevant pipeline; the outlet of the high-efficiency active carbon adsorption device is connected with the inlet of the alkali spray absorption tower; a spraying device is arranged above the inside of the alkali spraying absorption tower; a demisting device is arranged at the top of the alkali spray absorption tower close to the outlet; and a VOCS (volatile organic Compounds) online monitoring device is arranged at the outlet of the alkali spray absorption tower.
As a further improvement of the above technical solution, the absorption liquid circulation system includes an absorption liquid collection tank, an absorption liquid circulation pump, a PH monitoring device, and a liquid level monitoring device; the absorption liquid collecting tank is positioned below the alkali spray absorption tower; the absorption liquid circulating tank is connected with the alkali spraying absorption tower through an absorption liquid circulating pump, and the PH monitoring device is positioned in the absorption liquid collecting tank and is connected with a pipeline with a valve and an absorption liquid discharge port through related lines; the liquid level monitoring device is positioned in the absorption liquid circulating pool and is connected with the alkali liquor conveying pump through a related line; the liquid level monitoring device is positioned in the absorption liquid circulating pool, and the absorption liquid collecting pool is connected with the absorption liquid circulating pool through a pipeline with a valve.
As a further improvement of the above technical scheme, the alkali liquor replenishing system comprises an alkali liquor storage tank and an alkali liquor delivery pump, wherein the alkali liquor storage tank is positioned on one side of the absorption liquid circulating pool; and the alkali liquor storage tank is connected with the absorption liquid circulating tank through an alkali liquor delivery pump.
As a further improvement of the above technical scheme, the absorption liquid primary water treatment system comprises a primary water treatment tank, and the absorption liquid collecting tank is connected with the primary water treatment tank through an absorption liquid discharge port.
As a further improvement of the technical scheme, the demisting device comprises a demister and a flushing pipeline for cleaning the demister.
As a further improvement of the technical scheme, the spraying device comprises a plurality of spraying bent pipes, and a plurality of atomizing nozzles are arranged on the spraying bent pipes.
As a further improvement of the technical scheme, the inlet end of the absorption liquid circulating pump is connected with the absorption liquid circulating pool, and the outlet end of the absorption liquid circulating pump is connected with a spraying device in the alkali spraying absorption tower.
As a further improvement of the technical scheme, the alkali liquor storage tank is provided with a liquid level meter, a discharge hole, a feeding pump and a feeding hole, and the discharge hole of the alkali liquor storage tank is connected with the inlet end of the alkali liquor delivery pump; and the outlet end of the alkali liquor delivery pump is connected with the absorption liquid circulating tank.
The utility model has the advantages that: through install one set of alkali spray absorption tower additional behind high-efficient active carbon adsorption to the acid component in the neutralizing gas, install PH on-line monitoring system additional simultaneously, add subsidiary facilities such as preliminary water treatment pond, prolonged active carbon life, change once by original 1 month, improve to change once in 6 months, reached the purpose of having practiced thrift manufacturing cost, protection operating personnel healthy and atmospheric environment.
Drawings
FIG. 1 is a prior art system diagram;
fig. 2 is a schematic structural diagram of the present invention.
In the figure 1, an alkali spray absorption tower; 2-1, an absorption liquid collecting tank; 2-2, an absorption liquid circulating pool; 3. a defogging device; 4. a pH monitoring device; 5. a liquid level monitoring device; 6. an alkali liquor storage tank; 7. a primary water treatment tank; 8. VOCS on-line monitoring device; 9. a high-efficiency activated carbon adsorption device; 10. an oxidation fan; 11. a spraying device; 12. a valved conduit; a. an absorption liquid circulating pump; b. an alkali liquor delivery pump; c. an absorption liquid discharge port; d. a discharge port for the treatment liquid.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Fig. 1 is a schematic diagram of a processing system of VOCS organic waste gas in the prior art, wherein waste gas to be processed is forcibly circulated by an oxidation fan 10, is subjected to adsorption processing by high-efficiency activated carbon 9, and is monitored in real time by a VOCS online monitoring device 8. During the use period of the system, the active carbon needs to be frequently replaced, the online monitoring system can give an alarm after about 1 month of use, and only the active carbon can be replaced.
Fig. 2 is the structure schematic diagram of the processing system of VOCS organic waste gas provided by the utility model, as shown in fig. 2, the processing system of VOCS organic waste gas includes VOCS absorption system, absorption liquid circulation system, alkali liquor supply system, the preliminary water treatment system of absorption liquid and oxidation fan 10.
The VOCS absorption system comprises a high-efficiency activated carbon adsorption device 9, an alkali spray absorption tower 1 and a VOCS online monitoring device 8. The inlet of the high-efficiency active carbon adsorption device 9 is connected with an oxidation fan 10 and related pipelines, and the outlet of the high-efficiency active carbon adsorption device is connected with the inlet of the alkali spray absorption tower 1; a spraying device 11 is arranged above the inside of the alkali spraying absorption tower 1, and in order to ensure a better spraying effect, the spraying device 11 comprises a plurality of spraying bent pipes, and a plurality of atomizing nozzles are arranged on the spraying bent pipes; in alkali spray absorption tower 1, be equipped with defogging device 3 near the exit in the top, defogging device 3 can be conventional defroster, also can include the washing pipeline of defroster and clean defroster, and 1 exit in alkali spray absorption tower is equipped with VOCS on-line monitoring device 8.
The absorption liquid circulating system comprises an absorption liquid collecting tank 2-1, an absorption liquid circulating tank 2-2, an absorption liquid circulating pump a, a PH monitoring device 4 and a liquid level monitoring device 5. The absorption liquid collecting tank 2-1 is positioned below the alkali spray absorption tower 1, the absorption liquid circulating tank 2-2 is connected with the alkali spray absorption tower 1 through an absorption liquid circulating pump a, namely, the inlet end of the absorption liquid circulating pump a is connected with the absorption liquid circulating tank 2-2 through a pipeline, and the outlet end of the absorption liquid circulating pump a is connected with a spraying device 11 in the alkali spray absorption tower 1; the PH monitoring device 4 is positioned in the absorption liquid collecting tank 2-1, is connected with an absorption liquid discharge port c and a pipeline 12 with a valve through related lines, and controls the discharge of the absorption liquid in the absorption liquid collecting tank 2-1; the liquid level monitoring device 5 is positioned in the absorption liquid circulating pool 2-2 and is connected with the alkali liquor conveying pump b through a related line; the absorption liquid collecting tank 2-1 is connected with the absorption liquid circulating tank 2-2 through a pipeline 12 with a valve.
The alkali liquor supply system comprises an alkali liquor storage tank 6 and an alkali liquor delivery pump b. The alkali liquor storage tank 6 is located on one side of the absorption liquid circulation tank 2-2 and is connected with the absorption liquid circulation tank b through an alkali liquor delivery pump b, the alkali liquor storage tank 6 is provided with a liquid level meter, a discharge port, a feeding pump and a feeding port, the discharge port of the alkali liquor storage tank 6 is connected with the inlet end of the alkali liquor delivery pump b, and the outlet end of the alkali liquor delivery pump b is connected with the absorption liquid circulation tank 2-2.
The primary water treatment system of the absorption liquid comprises a primary water treatment tank 7, and the absorption liquid collecting tank 2-1 is connected with the primary water treatment tank 7 through an absorption liquid discharge port c.
The use principle is as follows: VOCS organic waste gas passes through oxidation fan 10 and gets into high-efficient active carbon adsorption device 9, gaseous phase discharge port after high-efficient active carbon 9 adsorbs inserts alkali and sprays absorption tower 1 gaseous phase entry, spray set 11 is established at alkali spray absorption tower 1 top, the alkali lye in the absorption liquid circulation pond 2-2 passes through absorption liquid circulating pump a pressurization, high-speed, even action is in whole alkali spray absorption tower 1, the gas that flows in from gaseous phase entry absorbs through alkali lye, the gaseous phase export of following the absorption tower is discharged after the defogging of defroster system 3, detect through VOCS on-line monitoring device 8 and discharge in the atmosphere after up to standard.
An absorption liquid collecting tank 2-1 is arranged below the alkali liquor absorption tower 1, a PH monitoring device 4 is arranged in the absorption liquid collecting tank 2-1, when the PH in the absorption liquid collecting tank 2-1 meets the standard, a pipeline 12 with a valve is opened, the absorption liquid flows into an absorption liquid circulating tank 2-2, and the absorption liquid circularly acts on the alkali spray absorption tower 1 through an absorption liquid circulating pump a; if the PH is not in accordance with the requirement, the wastewater enters a primary water treatment tank 7 through an absorption liquid discharge port c, is discharged from a treatment liquid discharge port d after primary treatment, is treated in a water inlet treatment section and is recycled.
The absorption liquid circulating pool 2-1 is internally provided with a liquid level monitoring system 5 which is connected with the alkali liquor delivery pump b through a relevant line, so that the alkali liquor storage tank 6 can timely supplement alkali liquor to the absorption liquid circulating pool 2-2 according to the liquid level monitoring system 5.
In a word, the utility model prolongs the service life of the high-efficiency adsorption active carbon on the basis of ensuring the qualified discharge of VOCs, improves the replacement time from about 1 month to 6 months, and obviously reduces the production cost; the requirements of protecting the body health of operators in the doctor blade section, maintaining the environment and reducing the production cost are met.
Claims (8)
1. A VOCS organic waste gas's processing system which characterized in that: comprises a VOCS absorption system, an absorption liquid circulating system, an alkali liquor supply system, an absorption liquid primary water treatment system and an oxidation fan (10); the VOCS absorption system comprises a high-efficiency activated carbon adsorption device (9), an alkali spray absorption tower (1) and a VOCS online monitoring device (8); the oxidation fan (10) is connected with an inlet of the high-efficiency activated carbon adsorption device (9) through a related pipeline; the outlet of the high-efficiency active carbon adsorption device (9) is connected with the inlet of the alkali spray absorption tower (1) through a related pipeline, and a spray device (11) is arranged above the inside of the alkali spray absorption tower (1); a demisting device (3) is arranged at the top of the alkali spray absorption tower (1) close to the outlet; and a VOCS (volatile organic Compounds) online monitoring device (8) is arranged at the outlet of the alkali spray absorption tower (1).
2. A VOCS organic waste gas treatment system as claimed in claim 1, wherein: the absorption liquid circulating system comprises an absorption liquid collecting tank (2-1), an absorption liquid circulating tank (2-2), an absorption liquid circulating pump (a), a PH monitoring device (4) and a liquid level monitoring device (5); the absorption liquid collecting tank (2-1) is positioned below the alkali spray absorption tower (1), the absorption liquid circulating tank (2-2) is connected with the alkali spray absorption tower (1) through an absorption liquid circulating pump (a), and the PH monitoring device (4) is positioned in the absorption liquid collecting tank (2-1) and is connected with a pipeline (12) with a valve and an absorption liquid discharge port (c) through related lines; the liquid level monitoring device (5) is positioned in the absorption liquid circulating pool (2-2), and the liquid level monitoring device (5) is connected with the alkali liquor conveying pump (b) through a related line; the absorption liquid collecting tank (2-1) is connected with the absorption liquid circulating tank (2-2) through a pipeline (12) with a valve.
3. A VOCS organic waste gas treatment system as claimed in claim 2, wherein: the alkali liquor replenishing system comprises an alkali liquor storage tank (6) and an alkali liquor delivery pump (b), wherein the alkali liquor storage tank (6) is positioned on one side of the absorption liquid circulating pool (2-2), and the alkali liquor storage tank (6) is connected with the absorption liquid circulating pool (2-2) through the alkali liquor delivery pump (b).
4. A VOCS organic waste gas treatment system as claimed in claim 2, wherein: the primary water treatment system of absorption liquid comprises a primary water treatment tank (7), and the absorption liquid collecting tank (2-1) is connected with the primary water treatment tank (7) through an absorption liquid discharge port (c).
5. A VOCS organic waste gas treatment system as claimed in claim 1, wherein: the demisting device (3) comprises a demister and a flushing pipeline for cleaning the demister.
6. A VOCS organic waste gas treatment system as claimed in claim 1, wherein: the spraying device (11) comprises a plurality of spraying bent pipes, and a plurality of atomizing nozzles are arranged on the spraying bent pipes.
7. A VOCS organic waste gas treatment system as claimed in claim 2, wherein: the inlet end of the absorption liquid circulating pump (a) is connected with the absorption liquid circulating pool (2-2), and the outlet end of the absorption liquid circulating pump (a) is connected with a spraying device (11) in the alkali spraying absorption tower.
8. A VOCS organic waste gas treatment system as claimed in claim 3, wherein: the alkali liquor storage tank (6) is provided with a liquid level meter, a discharge hole, a feeding pump and a feeding hole, the discharge hole of the alkali liquor storage tank (6) is connected with the inlet end of an alkali liquor delivery pump (b), and the outlet end of the alkali liquor delivery pump (b) is connected with an absorption liquid circulation tank (2-2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020121313.3U CN211800004U (en) | 2020-01-19 | 2020-01-19 | VOCS organic waste gas's processing system |
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| CN202020121313.3U CN211800004U (en) | 2020-01-19 | 2020-01-19 | VOCS organic waste gas's processing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113828118A (en) * | 2021-10-21 | 2021-12-24 | 无锡中石油润滑脂有限责任公司 | Waste gas collecting and treating device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113828118A (en) * | 2021-10-21 | 2021-12-24 | 无锡中石油润滑脂有限责任公司 | Waste gas collecting and treating device and method |
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