CN110743310A - Method and equipment for removing residual oil in oil-containing waste gas - Google Patents
Method and equipment for removing residual oil in oil-containing waste gas Download PDFInfo
- Publication number
- CN110743310A CN110743310A CN201810815828.0A CN201810815828A CN110743310A CN 110743310 A CN110743310 A CN 110743310A CN 201810815828 A CN201810815828 A CN 201810815828A CN 110743310 A CN110743310 A CN 110743310A
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- residual oil
- oil removing
- control valve
- steam
- removing tank
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- 239000002912 waste gas Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000003463 adsorbent Substances 0.000 claims abstract description 41
- 238000003795 desorption Methods 0.000 claims abstract description 11
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 10
- 238000011403 purification operation Methods 0.000 claims abstract description 9
- 238000001179 sorption measurement Methods 0.000 claims abstract description 3
- 239000007789 gas Substances 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 23
- 238000001816 cooling Methods 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 210000004072 lung Anatomy 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 206010061218 Inflammation Diseases 0.000 description 1
- 240000007049 Juglans regia Species 0.000 description 1
- 235000009496 Juglans regia Nutrition 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 230000007969 cellular immunity Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002068 genetic effect Effects 0.000 description 1
- 210000002865 immune cell Anatomy 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 210000002540 macrophage Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 235000020234 walnut Nutrition 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0454—Controlling adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
- B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a method and a device for removing residual oil in oily waste gas, which are characterized in that: the method comprises the following steps that waste gas containing residual oil after oil removal treatment is treated by two residual oil removing tanks filled with adsorbents, in the purification operation, one residual oil removing tank is used mainly, the other residual oil removing tank is used for standby, when the adsorbents in the main residual oil removing tank are saturated, the standby residual oil removing tank is used mainly, the main residual oil removing tank is used for standby, the adsorbents in the residual oil removing tank which is used for standby are desorbed, the residual oil removing tank is continuously used for standby after desorption until the adsorbents in the main residual oil removing tank are saturated, the standby is used mainly, the main residual oil removing tank is used for standby, and the two residual oil removing tanks are alternately used as the main residual oil removing tank and the standby for alternate adsorption and desorption; the purification operation is not affected when the adsorbent is desorbed and replaced. The invention can effectively remove residual oil, and has high operation efficiency and low operation cost.
Description
Technical Field
The invention relates to the field of waste gas treatment equipment, in particular to a method and equipment for removing residual oil in oily waste gas.
Background
Oil-containing waste gas is generated in production operation of many industries, oil smoke not only influences the efficacy of human body macrophage and immune cells to cause reduction of cellular immunity, but also causes inflammation of lung tissues damaged by human body cells to reduce lung capacity if exposed to high-concentration oil-containing waste gas for a long time. Organic pollutants in the oily exhaust gas can induce genetic elements of organisms to change, cause genetic material damage and protein damage of human bodies, and possibly cause cancers.
The common spraying oil removal method can not completely remove oil in the oil-containing waste gas, the gas after spraying oil removal treatment also contains a part of residual oil, and if the residual oil is discharged into the atmosphere, the residual oil can cause certain pollution to the atmosphere.
Disclosure of Invention
The invention aims to provide a method and equipment for removing residual oil in oily waste gas, so as to solve the problems in the background technology.
A method and equipment for removing residual oil from oil-containing waste gas are characterized in that: the method comprises the following steps that waste gas containing residual oil after oil removal treatment is treated by two residual oil removing tanks filled with adsorbents, in the purification operation, one residual oil removing tank is used mainly, the other residual oil removing tank is used for standby, when the adsorbents in the main residual oil removing tank are saturated, the standby residual oil removing tank is used mainly, the main residual oil removing tank is used for standby, the adsorbents in the residual oil removing tank which is used for standby are desorbed, the residual oil removing tank is continuously used for standby after desorption until the adsorbents in the main residual oil removing tank are saturated, the standby is used mainly, the main residual oil removing tank is used for standby, and the two residual oil removing tanks are alternately used as the main residual oil removing tank and the standby for alternate adsorption and desorption; the purification operation is not influenced when the adsorbent is desorbed and replaced; the device comprises a residual oil removing tank (1), a three-way pipe (2), an air outlet control valve (3), an air outlet manifold (4), an air inlet manifold (5), a steam input manifold (6), an air inlet control valve (7), a steam input control valve (8), a manual steam cut-off valve (9), a residual liquid discharge control valve (10) and a residual liquid discharge pipe (11).
The residual oil removal tank (1) comprises an adsorbent (1-1), a tank body (1-2), a gas outlet filter screen (1-3), a gas outlet (1-4), a manhole (1-5), an adsorbent bottom filter screen (1-6), a gas inlet (1-7), a support column (1-8) and a residual liquid discharge port (1-9), wherein the adsorbent is separated in the middle by the adsorbent bottom filter screen (1-6) and the gas outlet filter screen (1-3), the adsorbent bottom filter screen (1-6) prevents the adsorbent from leaking down, and the gas outlet filter screen (1-3) prevents the adsorbent from flowing away along with gas flow; the steam input manifold (6) comprises a normal-temperature air input control valve (6-1), a normal-temperature air input port (6-2), a high-temperature steam input port (6-3), a high-temperature steam input main valve (6-4) and a conveying pipe (6-5).
The steam input manifold (6) comprises a normal-temperature air input control valve (6-1), a normal-temperature air input port (6-2), a high-temperature steam input port (6-3), a high-temperature steam input main valve (6-4) and a conveying pipe (6-5).
Two residual oil removing tanks (1) are installed in parallel and are connected by a three-way pipe (2), an air outlet control valve (3), an air outlet manifold (4), an air inlet manifold (5), a steam input manifold (6), an air inlet control valve (7), a steam input control valve (8), a manual steam break valve (9), a residual liquid discharge control valve (10) and a residual liquid discharge pipe (11), two air outlets of the air inlet manifold (5) are respectively connected with the air inlet control valve (7) and the air inlet of the residual oil removing tank (1), air outlets of the two residual oil removing tanks (1) are respectively connected with the air outlet control valve (3) and the three-way pipe (2) and the air outlet manifold (4), steam outlets of the steam input manifold (6) are respectively connected with the steam input control valve (8), the steam outlets of the manual steam break valve (9) and the three-way pipe (2), the residual liquid discharge ports of the two residual oil removing tanks (1) are respectively connected with a residual liquid discharge control valve (10) and then respectively connected with a residual liquid discharge pipe (11); the on-off of gas is controlled by the gas outlet control valve (3) and the gas inlet control valve (7), the on-off of steam is controlled by the high-temperature steam input main valve (6-4), the steam input control valve (8) and the manual steam stop valve (9), the on-off of cooling air is controlled by the normal-temperature air input control valve (6-1), and the on-off of residual liquid and residual steam is controlled by the residual liquid discharge control valve (10).
Besides high-temperature steam desorption, high-temperature hot gas desorption can also be used.
The adsorbent (1-1) can be quartz sand, activated carbon, walnut shell and other materials which can be desorbed by high-temperature steam and high-temperature hot gas.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the adsorbent (1-1) in the residual oil removing tank (1) can remove residual oil in the gas after oil removal treatment; after the adsorbent (1-1) is saturated, high-temperature steam can be input into the residual oil removing tank (1) to ensure that the adsorbent is desorbed for multiple times and then used; the waste gas purification operation is not influenced when the adsorbent is desorbed and replaced.
Drawings
FIG. 1 is a schematic view of a structure of an oil-containing waste gas residual oil removing apparatus.
FIG. 2 is a schematic view of a residual oil removing tank.
Fig. 3 is a schematic diagram of a steam input manifold.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings.
After the oil-containing waste gas and residual oil removing equipment is installed in the waste gas treatment equipment, an air inlet of an air inlet manifold (5) is connected with an air inlet pipe, an air outlet of an air outlet manifold (4) is connected with an air outlet pipe, a steam inlet of a steam inlet manifold (6) is connected with a steam inlet pipe, and a discharge port of a residual oil discharge pipe (11) is connected with a liquid discharge pipe.
For convenience of description, two residual oil removing tanks (1) are respectively numbered as No. 1 and No. 2; before the first operation, the adsorbents (1-1) in the two residual oil removing tanks (1) are unsaturated, the No. 1 residual oil removing tank (1) is used mainly, and the No. 2 residual oil removing tank (1) is used for standby.
The normal temperature air input control valve (6-1) is in a closed state, and the high temperature steam input main valve (6-4) is in an open state; an air inlet control valve (7), an air outlet control valve (3) and a manual steam cut-off valve (9) of the No. 1 residual oil removing tank (1) are in an open state, and a steam input control valve (8) and a residual liquid discharge control valve (10) are in a closed state; a manual steam cut-off valve (9) of the No. 2 residual oil removing tank (1) is in an open state, and a steam inlet control valve (7), a steam outlet control valve (3), a steam input control valve (8) and a residual liquid discharge control valve (10) are in a closed state.
Starting the waste gas purification equipment to start waste gas purification operation; the pressure difference between the air inlet and the air outlet in the No. 1 residual oil removing tank (1) is increased to a set value, and the adsorbent (1-1) is saturated; the air outlet control valve (3) at the air outlet of the No. 2 residual oil removing tank (1) is opened, the air inlet control valve (7) is opened, and the No. 2 residual oil removing tank (1) becomes a main use; an air inlet control valve (7) at an air outlet of a No. 1 residual oil removing tank (1) is closed, an air outlet control valve (3) is closed, a residual oil discharging control valve (10) is opened, a steam input control valve (8) is opened, high-temperature steam is input into the No. 1 residual oil removing tank (1), desorption of an adsorbent (1-1) in the No. 1 residual oil removing tank (1) is started, the pressure difference between the air outlet and the air inlet of the No. 1 residual oil removing tank (1) is reduced to a set value, the steam input control valve (8) is closed, the residual oil discharging control valve (10) is closed, desorption is completed, and the No. 1 residual oil removing tank (1) becomes standby.
When the pressure difference between the air inlet and the air outlet in the No. 2 residual oil removing tank (1) is increased to a set value, the adsorbent (1-1) is saturated, the No. 1 residual oil removing tank (1) is used as a main use, and the adsorbent (1-1) in the No. 2 residual oil removing tank (1) is desorbed and then used as a standby use; the two residual oil removing tanks (1) are alternately used as a main tank and a standby tank, and alternately adsorb and desorb.
In any one of the two residual oil removing tanks (1), when the desorption is carried out to the set time, the pressure difference between the air outlet and the air inlet is not reduced to the set value: closing the high-temperature steam input main valve (6-4), opening the normal-temperature air input control valve (6-1), and introducing normal-temperature air into the residual oil removing tank (1) to cool the residual oil removing tank; the temperature in the residual oil removing tank (1) is reduced to a set value; closing a normal temperature air input control valve (6-1), opening a high temperature steam input main valve (6-4), closing a steam input control valve (8) corresponding to the residual oil removal tank (1), and prompting the system to replace the adsorbent; manually closing a manual steam-off valve (9) corresponding to the residual oil removal tank (1), opening a manhole (4-5) cover, and replacing the adsorbent (1-1) from the manhole (4-5); and after the adsorbent (1-1) is replaced, closing the manhole (4-5) cover, opening the manual steam cut-off valve (9), and keeping the residual oil removing tank (1) in a standby state.
The present invention is not limited to the above-mentioned preferred embodiments, and any structural changes made in the teaching of the present invention, which are similar or similar to the technical solutions of the present invention, fall within the protection scope of the present invention.
Claims (6)
1. A method and equipment for removing residual oil from oil-containing waste gas are characterized in that: the method comprises the following steps that waste gas containing residual oil after oil removal treatment is treated by two residual oil removing tanks filled with adsorbents, in the purification operation, one residual oil removing tank is used mainly, the other residual oil removing tank is used for standby, when the adsorbents in the main residual oil removing tank are saturated, the standby residual oil removing tank is used mainly, the main residual oil removing tank is used for standby, the adsorbents in the residual oil removing tank which is used for standby are desorbed, the residual oil removing tank is continuously used for standby after desorption until the adsorbents in the main residual oil removing tank are saturated, the standby is used mainly, the main residual oil removing tank is used for standby, and the two residual oil removing tanks are alternately used as the main residual oil removing tank and the standby for alternate adsorption and desorption; the purification operation is not influenced when the adsorbent is desorbed and replaced; the device comprises a residual oil removing tank (1), a three-way pipe (2), an air outlet control valve (3), an air outlet manifold (4), an air inlet manifold (5), a steam input manifold (6), an air inlet control valve (7), a steam input control valve (8), a manual steam cut-off valve (9), a residual liquid discharge control valve (10) and a residual liquid discharge pipe (11).
2. Residual oil removal tank (1) according to claim 1, characterized in that: comprises an adsorbent (1-1), a tank body (1-2), a gas outlet filter screen (1-3), a gas outlet (1-4), a manhole (1-5), an adsorbent bottom filter screen (1-6), a gas inlet (1-7), a support column (1-8) and a residual liquid outlet (1-9).
3. The steam inlet manifold (6) according to claim 1, characterized in that: comprises a normal temperature air input control valve (6-1), a normal temperature air input port (6-2), a high temperature steam input port (6-3), a high temperature steam input main valve (6-4) and a conveying pipe (6-5).
4. The method and apparatus for removing residual oil from oily exhaust gas according to claim 1, wherein: two residual oil removing tanks (1) are installed in parallel and are connected by a three-way pipe (2), an air outlet control valve (3), an air outlet manifold (4), an air inlet manifold (5), a steam input manifold (6), an air inlet control valve (7), a steam input control valve (8), a manual steam break valve (9), a residual liquid discharge control valve (10) and a residual liquid discharge pipe (11), two air outlets of the air inlet manifold (5) are respectively connected with the air inlet control valve (7) and the air inlet of the residual oil removing tank (1), air outlets of the two residual oil removing tanks (1) are respectively connected with the air outlet control valve (3) and the three-way pipe (2) and the air outlet manifold (4), steam outlets of the steam input manifold (6) are respectively connected with the steam input control valve (8), the steam outlets of the manual steam break valve (9) and the three-way pipe (2), the residual liquid discharge ports of the two residual oil removing tanks (1) are respectively connected with a residual liquid discharge control valve (10) and then respectively connected with a residual liquid discharge pipe (11); the on-off of gas is controlled by the gas outlet control valve (3) and the gas inlet control valve (7), the on-off of steam is controlled by the high-temperature steam input main valve (6-4), the steam input control valve (8) and the manual steam stop valve (9), the on-off of cooling air is controlled by the normal-temperature air input control valve (6-1), and the on-off of residual liquid and residual steam is controlled by the residual liquid discharge control valve (10).
5. Residual oil removal tank (1) according to claim 1, characterized in that: the adsorbent (1-1) in the residual oil removing tank (1) can remove residual oil in the gas after oil removal treatment; after the adsorbent (1-1) is saturated, high-temperature steam can be input into the residual oil removing tank (1) to ensure that the adsorbent is desorbed for multiple times and then used.
6. The method and apparatus for removing residual oil from oily exhaust gas according to claim 1, wherein: the waste gas purification operation is not influenced when the adsorbent is desorbed and replaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810815828.0A CN110743310A (en) | 2018-07-24 | 2018-07-24 | Method and equipment for removing residual oil in oil-containing waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810815828.0A CN110743310A (en) | 2018-07-24 | 2018-07-24 | Method and equipment for removing residual oil in oil-containing waste gas |
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| Publication Number | Publication Date |
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| CN110743310A true CN110743310A (en) | 2020-02-04 |
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| CN201810815828.0A Pending CN110743310A (en) | 2018-07-24 | 2018-07-24 | Method and equipment for removing residual oil in oil-containing waste gas |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104128067A (en) * | 2014-06-24 | 2014-11-05 | 浙江伍特环保科技有限公司 | Method for recycling organic solvent and processing residual liquid |
| CN104190205A (en) * | 2014-09-26 | 2014-12-10 | 江南大学 | Exhaust gas recovery cycle working method and device |
| CN204380480U (en) * | 2014-12-31 | 2015-06-10 | 清本环保工程(杭州)有限公司 | A kind of gas treatment equipment |
| CN106807178A (en) * | 2016-12-31 | 2017-06-09 | 杭州捷瑞空气处理设备有限公司 | A kind of adsorbent absorption, the device and method of hot drying gas desorption treatment organic exhaust gas |
-
2018
- 2018-07-24 CN CN201810815828.0A patent/CN110743310A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104128067A (en) * | 2014-06-24 | 2014-11-05 | 浙江伍特环保科技有限公司 | Method for recycling organic solvent and processing residual liquid |
| CN104190205A (en) * | 2014-09-26 | 2014-12-10 | 江南大学 | Exhaust gas recovery cycle working method and device |
| CN204380480U (en) * | 2014-12-31 | 2015-06-10 | 清本环保工程(杭州)有限公司 | A kind of gas treatment equipment |
| CN106807178A (en) * | 2016-12-31 | 2017-06-09 | 杭州捷瑞空气处理设备有限公司 | A kind of adsorbent absorption, the device and method of hot drying gas desorption treatment organic exhaust gas |
Non-Patent Citations (1)
| Title |
|---|
| 张祉祐等编著: "《低温技术原理与装置》", vol. 1, 30 November 1987, 机械工业出版社, pages: 10 * |
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