CN220214525U - High-concentration malodorous waste gas and methane mixed treatment system - Google Patents
High-concentration malodorous waste gas and methane mixed treatment system Download PDFInfo
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- CN220214525U CN220214525U CN202321427993.1U CN202321427993U CN220214525U CN 220214525 U CN220214525 U CN 220214525U CN 202321427993 U CN202321427993 U CN 202321427993U CN 220214525 U CN220214525 U CN 220214525U
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- waste gas
- pipeline
- spray tower
- treatment system
- mixing box
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 239000002912 waste gas Substances 0.000 title claims abstract description 40
- 239000007921 spray Substances 0.000 claims abstract description 47
- 238000002156 mixing Methods 0.000 claims abstract description 36
- 239000002253 acid Substances 0.000 claims abstract description 23
- 239000003513 alkali Substances 0.000 claims abstract description 23
- 239000007789 gas Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000010812 mixed waste Substances 0.000 claims abstract description 6
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 238000004880 explosion Methods 0.000 claims description 6
- 239000010865 sewage Substances 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- 238000005507 spraying Methods 0.000 description 18
- 238000005406 washing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
The utility model relates to a high-concentration malodorous waste gas and methane mixing treatment system which comprises a mixing box, wherein the mixing box is connected with a primary acid spray tower through a main pipeline, the primary acid spray tower is connected with a secondary alkali spray tower through a main pipeline, the secondary alkali spray tower is connected with a mixed waste gas fan through a main pipeline, the mixing box is connected with a circulating water tank through a branch pipeline I, a water circulating pump is arranged on the circulating water tank, a primary acid circulating pump is arranged on the primary acid spray tower, a secondary alkali circulating pump is arranged on the secondary alkali spray tower, and a methane access pipeline, a waste gas access pipeline and a fresh air access pipeline are respectively arranged at the front end of the mixing box. The utility model dilutes the concentration of the biogas before entering RTO treatment, ensures the safety of subsequent combustion and is reliable in use.
Description
Technical Field
The utility model relates to a gas mixing treatment system, in particular to a malodorous waste gas and methane mixing treatment system.
Background
At present, a large amount of tail gas is inevitably generated in the production process of the industries such as chemical industry and the like, wherein part of the tail gas contains methane. The existing waste gas treatment mode adopts RTO combustion treatment, and as part of waste gas contains methane, the concentration of methane entering the RTO is too high, and dangerous accidents are easy to occur in the combustion process.
Disclosure of Invention
The utility model aims to: the utility model aims to overcome the defects in the prior art and provide a high-concentration malodorous waste gas and methane mixing treatment system which is used for diluting the concentration of methane before entering RTO treatment and ensuring the safety of subsequent combustion.
The technical scheme is as follows: in order to solve the technical problems, the high-concentration malodorous waste gas and methane mixing treatment system comprises a mixing box, wherein the mixing box is connected with a primary acid spray tower through a main pipeline, the primary acid spray tower is connected with a secondary alkali spray tower through a main pipeline, the secondary alkali spray tower is connected with a mixed waste gas fan through a main pipeline, the mixing box is connected with a circulating water tank through a branch pipeline I, a water circulating pump is arranged on the circulating water tank, a primary acid circulating pump is arranged on the primary acid spray tower, a secondary alkali circulating pump is arranged on the secondary alkali spray tower, a methane access pipeline, a waste gas access pipeline and a fresh air access pipeline are respectively arranged at the front end of the mixing box, a pressure transmitter I, a cut-off valve I and a cut-off valve II are arranged on the methane access pipeline, a waste gas introducing fan and a pressure transmitter II are arranged on the waste gas access pipeline, the fresh air access pipeline is provided with a fresh air regulating valve, the biogas access pipeline is provided with a branch pipeline II, the branch pipeline II is provided with an emptying valve, the mixing box comprises a main pipe, one end of the main pipe is connected with a taper pipe, one end of the taper pipe is connected with a straight pipe I, the outer diameter of the straight pipe I is smaller than that of the main pipe, the outer end part of the straight pipe I is connected with a flange I, the other end of the main pipe is connected with an arc pipe I, the outer end part of the arc pipe I is connected with a flange II, the outer part of the straight pipe I is respectively provided with a negative pressure transmitter mounting bracket, a branch pipe I and a branch pipe II, the branch pipe I is provided with a cover plate, the branch pipe II is provided with a flange III and a flange cover, the outer part of the main pipe is respectively provided with a spraying interface, a biogas pipe, an anti-explosion opening and a spraying return opening, the spraying interface is at least provided with two, the spraying interface, the biogas connecting pipe and the explosion-proof port are arranged on the upper portion of the main pipe, the spraying reflux port is arranged on the lower portion of the main pipe, the spraying pipe is arranged in the spraying interface, the explosion-proof port is provided with a rupture disk, and the main pipe is internally provided with a plurality of gas swirlers.
Further, the spraying reflux port is connected with the circulating water tank through a pipeline.
Further, the gas cyclone comprises an outer cylinder body and an inner cylinder body, wherein the inner cylinder body is arranged at the center of the outer cylinder body, and a plurality of cyclone plates are uniformly arranged between the inner cylinder body and the outer cylinder body.
Further, when in operation, the main pipe is in a negative pressure state.
Further, the primary acid spray tower and the secondary alkali spray tower are connected with a sewage discharge pipeline.
In the utility model, a methane branch pressure transmitter PT501 is interlocked with a tail end mixing fan C0502, the tail end fan adjusts the variable frequency according to the pressure signal, and the methane branch pressure is set at-200 Pa;
another function of the pressure transmitter PT501 is to check whether the two shut-off valves KV501 and KV502 are leaking, step: (1) closing the shut-off valve KV501, opening the shut-off valve KV502, displaying zero on a normal condition transmitter PT501, if positive pressure is displayed, indicating that the shut-off valve KV501 has leakage, (2) simultaneously opening the shut-off valves KV501 and KV502, displaying positive pressure on the pressure transmitter PT501, simultaneously closing the shut-off valves KV501 and KV502, and if the pressure display of the transmitter continuously drops, indicating that the shut-off valve KV502 has leakage;
the low-concentration waste gas branch pressure transmitter PT502 is interlocked with the low-concentration waste gas fan C0501, and the low-concentration waste gas fan adjusts the variable frequency according to the pressure signal;
the combustible gas alarm detector GICA501A is controlled in an interlocking way with biogas cutoff valves KV501 and KV502, a biogas emergency emptying valve KV503 and a fresh air regulating valve CV0501, the valve is controlled to be opened and closed according to data feedback detected by LEL, the lower limit of LEL is set to 10%, the upper limit of LEL is set to 20%, the upper limit of LEL is set to 25%, and the LEL is provided with two instruments which are mutually verified, wherein the steps are as follows: (1) when the detected value gic a501A is equal to or greater than the upper limit or gic 501B is equal to or greater than the upper limit, the fresh air regulating valve CV0501 is opened to supply fresh air, the fresh air valve is fully opened, (2) when the detected value gic a is equal to or less than the lower limit and gic 501B is equal to or less than the lower limit, the fresh air regulating valve CV0501 is closed, (3) when the detected value gic a is equal to or greater than the upper limit or gic 501B is equal to or greater than the upper limit, the biogas bypass cut-off valves KV501, KV502 are closed (accident off), the emergency vent valve KV503 is opened (accident on), and the control of the gic 501B is the same as that of the gic 501A;
when the biogas cutoff valves KV501 and KV502 are in fault, but the concentration detected by LEL is lower than the lower limit, allowing biogas to enter a rear-end mixer, opening a biogas branch pipe bypass manual valve at the moment, and spraying and washing the biogas in a mixing box into a subsequent system;
when the system detects that any one of the equipment stops running or the liquid level meter is low, the biogas cutoff valves KV501 and KV502 are closed, and meanwhile, the emergency emptying valve KV503 is opened to safely empty biogas;
the mixing box has the functions of quickly mixing the biogas and the low-concentration waste gas through the turbulence blades, and preventing the risk caused by the accumulation of static electricity under a moist environment by spraying so that the environment that the biogas concentration passes through the explosion limit from high concentration is safe.
The beneficial effects are that: compared with the prior art, the utility model has the remarkable advantages that:
the mixed waste gas is subjected to acid washing and alkali washing treatment by adopting a primary acid spray tower and a secondary alkali spray tower and then enters RTO treatment, so that the treatment effect is effectively improved;
the method comprises the steps that a mixing box is adopted, a main pipe and a plurality of gas cyclones are arranged in the main pipe, wherein a spraying interface, a biogas connecting pipe, an explosion-proof port and a spraying reflux port are respectively arranged outside the main pipe, biogas waste gas before entering RTO is diluted, so that safety of subsequent RTO treatment is improved, in operation, the main pipe is in a negative pressure state, a negative pressure transmitter mounting bracket is arranged outside the straight pipe I, negative pressure in the main pipe is monitored through a negative pressure transmitter connected with the negative pressure transmitter mounting bracket, when the pressure in the main pipe is too high, pressure is relieved through the explosion-proof port, the use is safe and reliable, and the plurality of spraying pipes and the gas cyclones are adopted, so that waste gas is uniformly distributed, fully contacted with spraying liquid, and good in treatment effect;
a pressure transmitter I, a shut-off valve II and an emptying valve are arranged on the biogas access pipeline, and the pressure transmitter I is used for checking whether the two shut-off valves leak or not, so that the overall safety is ensured;
the waste gas access pipeline is provided with a waste gas introducing fan and a pressure transmitter II, the fresh air access pipeline is provided with a fresh air regulating valve, the pressure transmitter II is interlocked with the waste gas introducing fan, the waste gas introducing fan regulates the variable frequency according to the pressure signal, and the fresh air regulating valve is used for regulating the fresh air inlet quantity.
Drawings
FIG. 1 is a flow chart of the present utility model;
FIG. 2 is a front view of the mixing box of the present utility model;
FIG. 3 is a top view of the mixing box of the present utility model.
Description of the embodiments
The utility model is further described below with reference to the drawings and examples.
As shown in figures 1, 2 and 3, the high-concentration malodorous waste gas and methane mixed treatment system comprises a mixing box 1, wherein the mixing box 1 is connected with a primary acid spray tower 2 through a main pipeline, the primary acid spray tower 2 is connected with a secondary alkali spray tower 3 through a main pipeline, the secondary alkali spray tower 3 is connected with a mixed waste gas fan 4 through a main pipeline, the mixing box 1 is connected with a circulating water tank 5 through a branch pipeline I, a water circulating pump is arranged on the circulating water tank 5, a primary acid circulating pump is arranged on the primary acid spray tower 2, a secondary alkali circulating pump is arranged on the secondary alkali spray tower 3, the primary acid spray tower 2 and the secondary alkali spray tower 3 are both connected with a sewage discharge pipeline, a methane access pipeline 6, a waste gas access pipeline 7 and a fresh air access pipeline 8 are respectively arranged at the front end of the mixing box 1, the biogas access pipeline 6 is provided with a pressure transmitter I9, a cut-off valve I10 and a cut-off valve II 11, the waste gas access pipeline 7 is provided with a waste gas introducing fan 12 and a pressure transmitter II 13, the fresh air access pipeline 8 is provided with a fresh air regulating valve 14, the biogas access pipeline 6 is provided with a branch pipeline II, the branch pipeline II is provided with a vent valve 15, the mixing box 1 comprises a main pipe 1.1, one end of the main pipe 1.1 is connected with a taper pipe 1.2, one end of the taper pipe 1.2 is connected with a straight pipe I1.3, the outer diameter of the straight pipe I1.3 is smaller than the outer diameter of the main pipe 1.1, the outer end of the straight pipe I1.3 is connected with a flange I, the other end of the main pipe 1.1 is connected with an arc-shaped pipe I1.4, the outer end of the arc-shaped pipe I1.4 is connected with a flange II, and the outer part of the straight pipe I1.3 is respectively provided with a negative pressure transmitter mounting bracket, branch pipe I and branch pipe II be equipped with the apron on the branch pipe I be equipped with flange III and flange lid on the branch pipe II be equipped with respectively in the outside of being responsible for 1.1 and spray interface 1.5, marsh gas take over 1.6, explosion vent 1.7, spray return port 1.8, spray interface 1.5 sets up two at least, spray interface 1.5, marsh gas take over 1.6, explosion vent 1.7 establish in being responsible for 1.1 upper portion, spray return port 1.8 establishes in being responsible for 1.1 lower part, spray return port 1.8 links to each other with circulating water tank 5 through the pipeline spray be equipped with shower 1.9 in interface 1.7 be equipped with burst disk 2.1 be equipped with a plurality of gas swirlers 2.2 in being responsible for 1.1, gas swirlers 2.2 include outer barrel and inner barrel, the inner barrel sets up the central point of outer barrel evenly be equipped with a plurality of whirlpool plates between inner barrel and the outer barrel.
When in work, the main pipe 1.1 is in a negative pressure state.
According to the utility model, the primary acid spray tower and the secondary alkali spray tower are adopted, and mixed waste gas is subjected to acid washing and alkali washing treatment and then enters RTO treatment, so that the treatment effect is effectively improved; the method comprises the steps that a mixing box is adopted, a main pipe and a plurality of gas cyclones are arranged in the main pipe, wherein a spraying interface, a biogas connecting pipe, an explosion-proof port and a spraying reflux port are respectively arranged outside the main pipe, biogas waste gas before entering RTO is diluted, so that safety of subsequent RTO treatment is improved, in operation, the main pipe is in a negative pressure state, a negative pressure transmitter mounting bracket is arranged outside the straight pipe I, negative pressure in the main pipe is monitored through a negative pressure transmitter connected with the negative pressure transmitter mounting bracket, when the pressure in the main pipe is too high, pressure is relieved through the explosion-proof port, the use is safe and reliable, and the plurality of spraying pipes and the gas cyclones are adopted, so that waste gas is uniformly distributed, fully contacted with spraying liquid, and good in treatment effect; a pressure transmitter I, a shut-off valve II and an emptying valve are arranged on the biogas access pipeline, and the pressure transmitter I is used for checking whether the two shut-off valves leak or not, so that the overall safety is ensured; the waste gas access pipeline is provided with a waste gas introducing fan and a pressure transmitter II, the fresh air access pipeline is provided with a fresh air regulating valve, the pressure transmitter II is interlocked with the waste gas introducing fan, the waste gas introducing fan regulates the variable frequency according to the pressure signal, and the fresh air regulating valve is used for regulating the fresh air inlet quantity.
The present utility model provides a method and a thought, and a method for implementing the technical scheme are numerous, the above description is only a preferred embodiment of the present utility model, and it should be noted that, for those skilled in the art, several improvements and modifications can be made, and these improvements and modifications should also be regarded as protection scope of the present utility model, and each component that is not explicitly described in the present embodiment can be implemented by the prior art.
Claims (5)
1. High-concentration malodorous waste gas and marsh gas mixing treatment system, which is characterized in that: the device comprises a mixing box (1), the mixing box (1) is connected with a primary acid spray tower (2) through a main pipeline, the primary acid spray tower (2) is connected with a secondary alkali spray tower (3) through the main pipeline, the secondary alkali spray tower (3) is connected with a mixed waste gas fan (4) through the main pipeline, the mixing box (1) is connected with a circulating water tank (5) through a branch pipeline I, a water circulating pump is arranged on the circulating water tank (5), a primary acid circulating pump is arranged on the primary acid spray tower (2), a secondary alkali circulating pump is arranged on the secondary alkali spray tower (3), a methane access pipeline (6), a waste gas access pipeline (7) and a fresh air access pipeline (8) are respectively arranged at the front end of the mixing box (1), a pressure transmitter I (9), a cut-off valve I (10) and a cut-off valve II (11) are arranged on the methane access pipeline (6), an introducing waste gas fan (12) and a pressure transmitter II (13) are arranged on the waste gas access pipeline (7), a regulating valve (14) is arranged on the access pipeline (8), a main pipeline (1.1.1) is arranged on the main pipeline (1), the utility model provides a cone pipe (1.2) one end connection is equipped with straight tube I (1.3), the external diameter of straight tube I (1.3) is less than the external diameter of being responsible for (1.1) straight tube I (1.3) outer end connection is equipped with flange I be responsible for (1.1) other end connection is equipped with arc pipe I (1.4) outer end connection is equipped with flange II straight tube I (1.3) outside is equipped with negative pressure transmitter installing support, branch pipe I and branch pipe II respectively be equipped with the apron on the branch pipe I be equipped with flange III and flange cover be responsible for (1.1) outside is equipped with respectively and sprays interface (1.5), takeover (1.6), explosion vent (1.7), sprays back flow mouth (1.8), spray interface (1.5) set up two at least, spray interface (1.5), marsh gas (1.6), explosion vent (1.7) are established on being responsible for (1.1.1) upper portion, spray (1.5) back flow mouth (1.1.1) are equipped with a plurality of blast orifice (2.1.1) and are in being responsible for (1.1.1).
2. The high-concentration malodorous waste gas and biogas mixing treatment system according to claim 1, wherein: the spray return port (1.8) is connected with the circulating water tank (5) through a pipeline.
3. The high-concentration malodorous waste gas and biogas mixing treatment system according to claim 1, wherein: the gas cyclone (2.2) comprises an outer cylinder body and an inner cylinder body, wherein the inner cylinder body is arranged at the center of the outer cylinder body, and a plurality of cyclone plates are uniformly arranged between the inner cylinder body and the outer cylinder body.
4. The high-concentration malodorous waste gas and biogas mixing treatment system according to claim 1, wherein: when in work, the main pipe (1.1) is in a negative pressure state.
5. The high-concentration malodorous waste gas and biogas mixing treatment system according to claim 1, wherein: the primary acid spray tower (2) and the secondary alkali spray tower (3) are connected with a sewage discharge pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321427993.1U CN220214525U (en) | 2023-06-07 | 2023-06-07 | High-concentration malodorous waste gas and methane mixed treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321427993.1U CN220214525U (en) | 2023-06-07 | 2023-06-07 | High-concentration malodorous waste gas and methane mixed treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220214525U true CN220214525U (en) | 2023-12-22 |
Family
ID=89197169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321427993.1U Active CN220214525U (en) | 2023-06-07 | 2023-06-07 | High-concentration malodorous waste gas and methane mixed treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220214525U (en) |
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2023
- 2023-06-07 CN CN202321427993.1U patent/CN220214525U/en active Active
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