CN212262822U - Tail gas absorption equipment - Google Patents
Tail gas absorption equipment Download PDFInfo
- Publication number
- CN212262822U CN212262822U CN202021443740.XU CN202021443740U CN212262822U CN 212262822 U CN212262822 U CN 212262822U CN 202021443740 U CN202021443740 U CN 202021443740U CN 212262822 U CN212262822 U CN 212262822U
- Authority
- CN
- China
- Prior art keywords
- pipe
- liquid
- absorption
- outlet
- absorption tower
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a tail gas absorption device, which comprises an incinerator, a quench tower and an absorption tower which are connected in sequence through gas pipelines, wherein the absorption tower is provided with a gas outlet, and the gas outlet is provided with a negative pressure fan; the high-temperature gas inlet, the low-temperature gas outlet, the spraying device, the warming liquid outlet and the sediment outlet positioned at the bottom of the quenching tower are arranged on the quenching tower, the high-temperature gas inlet is connected with the incinerator, the low-temperature gas outlet is connected with the absorption tower through a gas pipeline, the warming liquid outlet and the sediment outlet are both connected with the absorption tower through a liquid pipeline, and the sediment outlet is also connected with a blow-off pipe. The liquid that is used for cooling for high-temperature gas in this application can select the absorbent, utilizes the absorbent to cool down high-temperature gas, utilizes the absorbent to carry out preliminary processing to high-temperature gas in other words, has improved the utilization ratio of treatment effeciency and absorbent.
Description
Technical Field
The utility model relates to a tail gas treatment equips technical field, concretely relates to tail gas absorption equipment.
Background
Industrial waste gas contains a large amount of solid particles, acid gases and other harmful substances, and if the industrial waste gas is directly discharged into the atmosphere, the industrial waste gas can cause serious pollution to the air, so that the ecological environment can be influenced, various human diseases, particularly respiratory diseases, are increased, and the waste gas is required to be purified before being discharged. In the exhaust gas treatment process, the particulate matters in the exhaust gas may increase the treatment difficulty of the acid gas or other components or reduce the treatment effect of other components, so that when the exhaust gas is treated, the exhaust gas is generally subjected to primary treatment to remove the particulate matters therein, or part of other components is removed while removing the particulate matters, and then other harmful components in the exhaust gas are further treated to meet the emission requirement.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a tail gas absorption equipment solves current tail gas absorption equipment absorption liquid and utilizes insufficient problem.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a tail gas absorption device comprises an incinerator, a quench tower and an absorption tower which are sequentially connected through a pipeline, wherein a gas outlet is formed in the absorption tower, and a negative pressure fan is arranged at the gas outlet;
the high-temperature gas inlet, the low-temperature gas outlet, the spraying device, the warming liquid outlet and the sediment outlet positioned at the bottom of the quenching tower are arranged on the quenching tower, the high-temperature gas inlet is connected with the incinerator, the low-temperature gas outlet is connected with the absorption tower through a gas pipeline, the warming liquid outlet and the sediment outlet are both connected with the absorption tower through a liquid pipeline, and the sediment outlet is also connected with a blow-off pipe.
Furthermore, the absorption tower is sequentially provided with a spraying area, an absorption area and a liquid collecting area from top to bottom, the gas outlet is arranged above the spraying area, a gas inlet connected with the low-temperature gas outlet is arranged on the absorption tower below the absorption area, and a liquid outlet and a liquid inlet connected with a liquid pipeline are arranged in the liquid collecting area;
an absorption tower plate is arranged in the absorption zone, a vent hole is formed in the absorption tower plate, a liquid blocking strip is arranged at the edge of the absorption tower plate, and a material channel is arranged between the absorption tower plate and the inner wall of the absorption tower; the absorption tower plates are arranged from top to bottom, and the material channels corresponding to two adjacent absorption tower plates are arranged in a staggered manner.
Furthermore, the spraying area is provided with a spray head communicated with a liquid inlet pipe, the liquid outlet is communicated with a liquid outlet pipe, the liquid outlet pipe is communicated with the liquid inlet pipe through a circulating pipe, and the circulating pipe is provided with a pressure pump and a valve.
Furthermore, the circulating pipe is also connected with a spraying device.
Further, the gas pipe and the circulation pipe are connected by a connection pipe.
Furthermore, the circulating pipe is communicated with one end of the backflushing pipe, the other end of the backflushing pipe is located below the liquid level of the liquid collecting area, and a valve is arranged on the backflushing pipe.
Furthermore, the liquid outlet includes clear liquid export and solid-liquid mixture export, clear liquid exit linkage has clear liquid pipe, solid-liquid mixture exit linkage has solid-liquid mixture pipe, clear liquid pipe, solid-liquid mixture pipe and circulating pipe pass through three way connection, all be provided with the valve on clear liquid pipe, the solid-liquid mixture pipe.
Furthermore, valves are arranged on the circulating pipes on two sides of the backflushing pipe, two valves on the circulating pipes are correspondingly provided with a liquid outlet, and each liquid outlet is provided with a valve.
Furthermore, a liquid separating pipe is arranged on the part of the recoil pipe, which is positioned in the absorption tower, the liquid separating pipe is arranged along the radial direction of the absorption tower, the liquid inlet end is connected with the recoil pipe, and the liquid outlet end is provided with a recoil opening.
Furthermore, the recoil pipe comprises a fixed pipe and a rotating pipe connected with the fixed pipe through a bearing, the rotating pipe and the fixed pipe are coaxially arranged, the liquid separating pipe is arranged on the rotating pipe, and a liquid outlet of the liquid separating pipe is arranged along the tangential direction of the absorption tower.
Compared with the prior art, the beneficial effects of the utility model are one of following at least:
the liquid that is used for cooling for high-temperature gas in this application can select the absorbent, utilizes the absorbent to cool down high-temperature gas, utilizes the absorbent to carry out preliminary processing to high-temperature gas in other words, has improved the utilization ratio of treatment effeciency and absorbent.
Be provided with the air vent on the absorption column plate in this application, be provided with material passageway between absorption column plate and the absorption tower, gaseous lower surface contact, the upper surface contact who assembles liquid film top and liquid film through material passageway from air vent and liquid film to improve the material exchange effect of two items of gas-liquid.
The circulating pipe and the gas pipeline in the embodiment are connected through the connecting pipe, and when more solid particles are accumulated in the gas pipeline, the gas pipeline can be flushed by using liquid in the circulating pipe.
In the application, the backflushing pipe is connected with the liquid distributing pipe, and the liquid phase leaves from the backflushing opening and is sprayed to all directions, so that the cleaning or stirring effect is improved; in addition, the cleaning or stirring effect can be adjusted by adjusting the pressure of the liquid phase in the backflushing pipe.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the middle absorption tower of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment provides a tail gas absorption device, as shown in fig. 1, comprising an incinerator 1, a quench tower 2 and an absorption tower 3 which are connected in sequence through a gas pipeline 22, wherein a gas outlet is arranged on the absorption tower 3, and a negative pressure fan 4 is arranged at the gas outlet;
be provided with high-temperature gas entry 21, low-temperature gas outlet, spray set, the export of the liquid of rising the temperature and be located the deposit export of 2 bottoms of quench tower on the quench tower 2, high-temperature gas entry 21 is connected with burning furnace 1, the low-temperature gas outlet passes through gas piping 22 and is connected with absorption tower 3, the liquid of rising the temperature export and deposit export all are connected with absorption tower 3 through liquid piping 23, the deposit exit still is connected with the blow off pipe.
After the incinerator 1 in this embodiment generates tail gas, the cooling tower 2 is first heard to cool, and then the absorption tower 3 absorbs particulate impurities and part of polluted gas therein, wherein one or more of the cooling tower 2 and the absorption tower 3 can be arranged as required, when the gas leaving the absorption tower 3 reaches the emission standard, the gas can be directly discharged, and if the gas does not reach the emission standard, the gas is continuously subjected to other treatments until the gas reaches the emission standard and then is discharged through a chimney.
The liquid that is used for high-temperature gas cooling in this embodiment can select the absorbent, utilizes the absorbent to cool down high-temperature gas, has carried out preliminary processing to high-temperature gas in other words utilizing the absorbent, has improved the utilization ratio of treatment effeciency and absorbent. After heat exchange with high-temperature gas, the absorbent absorbs part of solid particles in tail gas, the solid-liquid mixture is gradually settled in the quenching tower 2, then the clarified absorbent at the upper layer can be transferred into the absorption tower 3 and gathered with the absorbent in the absorption tower 3, so that the solid particles are conveniently recycled, and the part with higher solid particle content at the lower layer can be directly discharged through a drain pipe and also can be transferred into the absorption tower 3 to be treated together with the sediments in the absorption tower 3.
The absorption tower 3 in this embodiment may be as shown in fig. 2, and includes an absorption tower 3, the absorption tower 3 is sequentially provided with a spray area 31, an absorption area 32, and a liquid collection area 33 from top to bottom, the gas outlet is provided above the spray area 31, the absorption tower 3 below the absorption area 32 is provided with a gas inlet connected to the low-temperature gas outlet, and the liquid collection area 33 is provided with a liquid outlet and a liquid inlet connected to the liquid pipeline 23;
an absorption tower plate 321 is arranged in the absorption zone 32, a vent hole is arranged on the absorption tower plate 321, a liquid blocking strip 322 is arranged at the edge of the absorption tower plate 321, and a material channel 323 is arranged between the absorption tower plate 321 and the inner wall of the absorption tower 3; the absorption tower plates 321 are arranged from top to bottom in sequence, and the material channels 323 corresponding to two adjacent absorption tower plates 321 are arranged in a staggered manner.
In the tail gas absorption apparatus of this embodiment, the absorption liquid sprayed by the spraying region 31 falls on the absorption tower plate 321, and under the action of the liquid blocking strip 322, a liquid film can be formed on the absorption tower plate 321. The waste gas enters the absorption tower 3 from the gas inlet and then gradually moves upwards, when the gas moves to the absorption zone 32, part of the gas passes through the vent holes of the absorption tower plate 321 due to the existence of the absorption tower plate 321, and continues to move upwards after contacting with the absorption liquid on the absorption tower plate 321; another part of the gas continues to move upward through the material passage 323 while being in contact with the upper surface of the liquid film on the absorption tray 321 for mass exchange, and then is further purified by being combined with the gas rising from the vent holes, continuing through the absorption tray 321 and the material passage 323 above.
The gas enters the spraying area 31 after passing through the absorption tower plates 321 of the absorption area 32 in sequence, and after further contacting with absorption liquid in the spraying area 31 for substance exchange, the gas leaves from a gas outlet at the top to finish the primary purification of the gas. The primary purification of the gas is mainly to absorb solid particles in the gas, and part of acid gas or other components in the gas can be treated according to different selected absorption liquids. The gas inlet in this embodiment may be below the liquid level or below the liquid level in the liquid collection region 33 as desired; the height of the liquid blocking strip 322 can be selected according to the pressure of the gas in the absorption tower 3, the height of the liquid blocking strip 322 with high pressure can be properly increased, and the height of the liquid blocking strip 322 with low pressure can be properly reduced; since the material passages 323 corresponding to the adjacent two absorption trays 321 may be overlapped to lower the solid particle absorption effect, it is preferable that the material passages 323 corresponding to the adjacent two absorption trays 321 are arranged in a staggered manner.
In this embodiment the spraying area 31 may be provided with a nozzle communicated with a liquid inlet pipe, the liquid outlet is communicated with a liquid outlet pipe, the liquid outlet pipe is communicated with the liquid inlet pipe through a circulating pipe 34, and the circulating pipe 34 is provided with a pressure pump and a valve.
After passing through the absorption region 32, the absorption liquid is collected in the liquid collecting region 33, and the absorption liquid therein may have a partial absorption capacity, and at this time, the absorption liquid with the partial absorption capacity may be mixed with a fresh absorption liquid or not mixed with a fresh absorption liquid for recycling, so as to improve the utilization rate of the absorption liquid.
The circulating pipe 34 in this embodiment may be further connected to a spraying device, and the absorption liquid or the supernatant in the liquid collecting region 33 is used to cool the high-temperature tail gas, thereby improving the utilization rate of the absorption liquid.
The gas pipe 22 and the circulation pipe 34 in this embodiment are connected by a connection pipe 5, and a check valve may be provided on the connection pipe 5.
The circulating pipe 34 and the gas pipeline 22 in this embodiment are connected through the connecting pipe 5, when more solid particles are accumulated in the gas pipeline 22, the gas pipeline 22 can be flushed by using the liquid in the circulating pipe 34, and the connecting pipe 5 can be provided with a check valve, so that the gas cannot enter the circulating pipe 34; instead of providing a check valve, the liquid may be forced into the gas line 22 by adjusting the pressure of the gas and the liquid.
The circulation pipe 34 in this embodiment may be in communication with one end of a back-flushing pipe 35, the other end of the back-flushing pipe 35 is located below the liquid level of the liquid collection region 33, and a valve is disposed on the back-flushing pipe 35.
In the process of absorbent liquid sedimentation in the liquid collection region 33, solid particles can be gathered at the bottom of the tower, and the density can be gradually increased after long-time gathering, if the solid particles are removed by the method, the backflushing pipe 35 can increase the disturbance of the liquid phase in the liquid collection region 33 through the circulation of the absorbent liquid, which is equivalent to stirring, so that the settled particles gradually float upwards to be mixed with the absorbent liquid, and then leave from the liquid outlet of the liquid outlet.
The liquid outlet in this embodiment includes a clear liquid outlet and a solid-liquid mixture outlet, the clear liquid outlet is connected with a clear liquid pipe 36, the solid-liquid mixture outlet is connected with a solid-liquid mixture pipe 37, the clear liquid pipe 36, the solid-liquid mixture pipe 37 and the circulating pipe 34 are connected by a tee joint, and valves are arranged on the clear liquid pipe 36 and the solid-liquid mixture pipe 37.
The clear liquid outlet and the solid-liquid mixture outlet are arranged in the embodiment, when the absorption liquid needs to be recycled, the valve on the clear liquid pipe 36 is preferably opened, and the valve on the solid-liquid mixture pipe 37 is closed, so that solid particles can be reduced to the greatest extent to enter the spray head, the probability of blockage of the spray head is reduced, the service life of the spray head is prolonged, the content of the solid particles in the absorption liquid is reduced, and the absorption effect of the absorption liquid on the solid particles can be improved. When the solid particles settled in the tower need to be discharged, the valve on the solid mixture pipe can be opened, the valve on the clear liquid pipe 36 is closed, the solid particles are discharged from the absorption tower 3, when the content of the solid particles is too high, the service life of the water pump can be shortened, at the moment, the valve on the clear liquid pipe 6 can be opened, the solid particles are diluted, the water pump can normally work, and the service life of the water pump is prolonged.
In this embodiment, the circulating pipes 34 on both sides of the backflushing pipe 35 are provided with valves, and two valves on the circulating pipes 34 are provided with a liquid discharge port correspondingly, and each liquid discharge port is provided with a valve.
In this embodiment, when the valve of the back flushing pipe 35 on the side far from the spray head is opened and the valve on the side close to the spray head is closed, the accumulated liquid in the absorption tower 3 can be stirred; when the valve on the side of the back flushing pipe 35 far away from the spray head is closed and the valve on the side close to the spray head is opened, the fresh absorption liquid can be used for cleaning the interior of the absorption tower 3.
The part of the recoil pipe 35 in the absorption tower 3 in this embodiment may be provided with a liquid distribution pipe 38, the liquid distribution pipe 38 is arranged along the radial direction of the absorption tower 3, the liquid inlet end is connected with the recoil pipe 35, and the liquid outlet end is provided with a recoil opening.
In this embodiment, the liquid phase leaving from the back flushing pipe 35 leaves from the back flushing port and is sprayed in various directions, so that the cleaning or stirring effect is improved; in addition, the cleaning or stirring effect can be adjusted by adjusting the pressure of the liquid phase in the back-flushing pipe 35.
The back flushing pipe 35 in this embodiment may include a fixed pipe and a rotating pipe connected to the fixed pipe through a bearing, the rotating pipe and the fixed pipe are coaxially disposed, the liquid distribution pipe 38 is disposed on the rotating pipe, and the liquid outlet direction of the liquid distribution pipe 38 is disposed along the tangential direction of the absorption tower 3.
The liquid outlet direction of the liquid separating pipe 38 in this embodiment is arranged along the tangential direction of the absorption tower 3, and the liquid provides a reaction force for the liquid separating pipe 38 during the liquid outlet process, so that the liquid separating pipe 38 rotates around the back-flushing pipe 35, and the stirring or cleaning effect is better. Wherein the liquid separating pipe 38 is preferably arranged in the clockwise direction or the counterclockwise direction of the absorption tower 3, and the rotating speed of the liquid separating pipe 38 can be controlled by controlling the liquid pressure in the back-flushing pipe 35.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.
Claims (10)
1. A tail gas absorption equipment which characterized in that: the device comprises an incinerator (1), a quench tower (2) and an absorption tower (3) which are sequentially connected through a gas pipeline (22), wherein a gas outlet is formed in the absorption tower (3), and a negative pressure fan (4) is arranged at the gas outlet;
be provided with high-temperature gas entry (21), low-temperature gas outlet, spray set, the export of the liquid that rises and the deposit export that is located quench tower (2) bottom on quench tower (2), high-temperature gas entry (21) are connected with burning furnace (1), the low-temperature gas outlet passes through gas pipeline (22) and is connected with absorption tower (3), the liquid that rises export and deposit export all are connected with absorption tower (3) through liquid pipeline (23), the deposit exit still is connected with the blow off pipe.
2. The tail gas absorption equipment according to claim 1, wherein the absorption tower (3) is provided with a spraying area (31), an absorption area (32) and a liquid collecting area (33) in sequence from top to bottom, the gas outlet is arranged on the absorption tower (3) above the spraying area (31) and below the absorption area (32), a gas inlet connected with the low-temperature gas outlet is arranged on the absorption tower (3), and a liquid outlet and a liquid inlet connected with the liquid pipeline (23) are arranged in the liquid collecting area (33);
an absorption tower plate (321) is arranged in the absorption zone (32), a vent hole is formed in the absorption tower plate (321), a liquid blocking strip (322) is arranged at the edge of the absorption tower plate, and a material channel (323) is arranged between the absorption tower plate (321) and the inner wall of the absorption tower (3); more than two absorption tower plates (321) are arranged from top to bottom at one time, and the material channels (323) corresponding to the two adjacent absorption tower plates (321) are arranged in a staggered manner.
3. The tail gas absorption apparatus according to claim 2, wherein the spraying section (31) is provided with a nozzle communicated with a liquid inlet pipe, the liquid outlet is communicated with a liquid outlet pipe, the liquid outlet pipe is communicated with the liquid inlet pipe through a circulating pipe (34), and the circulating pipe (34) is provided with a pressurizing pump and a valve.
4. The exhaust gas absorption apparatus according to claim 3, wherein the circulation pipe (34) is further connected to a spraying device.
5. The exhaust gas absorption apparatus according to claim 3, wherein the gas pipe (22) and the circulation pipe (34) are connected by a connection pipe (5).
6. The tail gas absorption apparatus according to claim 3, wherein the circulation pipe (34) is communicated with one end of a back-flushing pipe (35), the other end of the back-flushing pipe (35) is positioned below the liquid level of the liquid collection region (33), and a valve is arranged on the back-flushing pipe (35).
7. The tail gas absorption apparatus according to claim 3, wherein the liquid outlet comprises a clear liquid outlet and a solid-liquid mixture outlet, the clear liquid outlet is connected with a clear liquid pipe (36), the solid-liquid mixture outlet is connected with a solid-liquid mixture pipe (37), the clear liquid pipe (36), the solid-liquid mixture pipe (37) and the circulation pipe (34) are connected through a tee joint, and valves are arranged on the clear liquid pipe (36) and the solid-liquid mixture pipe (37).
8. The tail gas absorption device according to claim 6, wherein valves are disposed on the circulation pipes (34) at two sides of the backflushing pipe (35), and a liquid discharge port is disposed on each of the two valves on the circulation pipes (34) correspondingly.
9. The tail gas absorption apparatus according to claim 6, wherein a liquid separating pipe (38) is arranged at a part of the backflushing pipe (35) located in the absorption tower (3), the liquid separating pipe (38) is arranged along the radial direction of the absorption tower (3), a liquid inlet end is connected with the backflushing pipe (35), and a liquid outlet end is provided with a backflushing opening.
10. The tail gas absorption apparatus according to claim 9, wherein the back-flushing pipe (35) comprises a fixed pipe and a rotating pipe connected with the fixed pipe through a bearing, the rotating pipe is coaxially arranged with the fixed pipe, the liquid distribution pipe (38) is arranged on the rotating pipe, and the liquid outlet direction of the liquid distribution pipe (38) is arranged along the tangential direction of the absorption tower (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021443740.XU CN212262822U (en) | 2020-07-21 | 2020-07-21 | Tail gas absorption equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021443740.XU CN212262822U (en) | 2020-07-21 | 2020-07-21 | Tail gas absorption equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212262822U true CN212262822U (en) | 2021-01-01 |
Family
ID=73899491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021443740.XU Active CN212262822U (en) | 2020-07-21 | 2020-07-21 | Tail gas absorption equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212262822U (en) |
-
2020
- 2020-07-21 CN CN202021443740.XU patent/CN212262822U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107198923A (en) | A kind of purification process technique of coke wet quenching steam | |
| CN102580437A (en) | Converter primary flue gas dual-tower purification method and converter primary flue gas purification tower | |
| CN112044224A (en) | Deep treatment system and treatment method for high-temperature water-washed slag steam pollutants | |
| CN205999329U (en) | A kind of wet quenching system | |
| CN110548359A (en) | Wet dust removal demisting device and wet dust removal demisting method thereof | |
| CN212262822U (en) | Tail gas absorption equipment | |
| CN112044222A (en) | System and method for removing colored smoke plume of high-temperature water-washed slag steam | |
| CN101476822B (en) | Burner gas purification system and process for silicon-manganese alloy electric furnace | |
| CN108671734A (en) | A kind of environment-friendly highly efficient purification soda acid exhaust gas washing tower and its working method | |
| CN210584298U (en) | Smoke white control system | |
| CN111715035A (en) | Tail gas absorption equipment | |
| CN212818972U (en) | Colored smoke plume desorption system of high temperature water flushing sediment steam | |
| CN212680559U (en) | Waste gas absorption tower containing particulate matters | |
| CN202543241U (en) | One-step flue gas purification tower for converter | |
| CN212713365U (en) | Tail gas treatment device for delayed coking | |
| CN105032042B (en) | Full-automatic waste gas, waste water and waste residue treatment system | |
| CN211069538U (en) | Spraying device for treating flue gas of biomass burner | |
| CN213288120U (en) | Near zero discharge system of soil thermal dehydration | |
| CN115040962A (en) | Carbon dioxide absorption system | |
| CN111068491B (en) | Coking tail gas treatment method and device | |
| CN209828689U (en) | Flue gas preheating and filtering device | |
| CN206887008U (en) | A kind of purifying processing device of coke wet quenching steam | |
| CN216223555U (en) | Waste gas treatment device with waste heat recovery function | |
| CN212663101U (en) | Physical method processing system for up-to-standard emission of organic tail gas | |
| CN218636642U (en) | Vacuum extractor of raw oil fractionation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |