CN112642274A - Interlocking control system of device for absorbing hydrogen sulfide by complexing iron - Google Patents
Interlocking control system of device for absorbing hydrogen sulfide by complexing iron Download PDFInfo
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- CN112642274A CN112642274A CN202011522622.2A CN202011522622A CN112642274A CN 112642274 A CN112642274 A CN 112642274A CN 202011522622 A CN202011522622 A CN 202011522622A CN 112642274 A CN112642274 A CN 112642274A
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- 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
- B01D53/30—Controlling by gas-analysis apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
- B01D46/64—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series arranged concentrically or coaxially
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- 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
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- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8603—Removing sulfur compounds
- B01D53/8612—Hydrogen sulfide
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- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8696—Controlling the catalytic process
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Abstract
The invention provides an interlocking control system of a device for absorbing hydrogen sulfide by complexing iron, which comprises an air inlet pressure transmitter, an air inlet online hydrogen sulfide detector, a primary absorption tower, a primary spray pump outlet online ORP detector, a primary absorption tower liquid level transmitter, a primary tower reflux pump outlet regulating valve, a primary absorption pump, an aeration fan, a medicament regeneration box, a sulfur slurry pump, a secondary tower reflux pump outlet regulating valve, a secondary tower reflux pump, a secondary absorption tower liquid level transmitter, a secondary spray pump outlet online ORP detector, a secondary absorption tower, a fan, an air outlet online hydrogen sulfide detector and a sulfur filter press. The interlocking control system realizes an automatic regulating system along with the fluctuation of the concentration of the hydrogen sulfide, ensures the absorption efficiency, ensures the stable operation of the whole device, realizes the unattended and automatic operation, and can be effectively suitable for the complex iron absorption device.
Description
Technical Field
The invention belongs to the technical field of complex iron absorption equipment, and particularly relates to an interlocking control system of a device for absorbing hydrogen sulfide by complex iron.
Background
The complex iron method desulfurization technology is a method for removing hydrogen sulfide by wet oxidation with complex iron as a catalyst, and is characterized in that H2S in gas is directly converted into element S, the content of H2S in the absorbed gas is less than 20ppm, the complex iron method desulfurization technology is a novel desulfurization technology which is simple in process, high in working sulfur capacity, environment-friendly and nontoxic, the defects of low sulfur capacity, complex desulfurization process, high secondary salt generation rate, serious environmental pollution and the like in the traditional desulfurization process are overcome, the sulfur recovery rate reaches 99.99%, the content of sulfur dioxide in flue gas after the purified tail gas is burnt is reduced to 20mg/Nm3, and the continuously improved environment-friendly index can be met.
At present, a device for absorbing hydrogen sulfide by complexing iron can use an interlocking control system.
However, the existing interlocking control system also has the problems that the air inlet efficiency is low, the interlocking control system cannot automatically adjust the system along with the fluctuation of the concentration of the hydrogen sulfide, air filtering cannot be realized, the exhaust treatment is improper, and the environment is easily polluted.
Therefore, the invention is necessary to develop an interlocking control system of a device for absorbing hydrogen sulfide by complexing iron.
Disclosure of Invention
In order to solve the technical problems, the invention provides an interlocking control system of a device for absorbing hydrogen sulfide by complexing iron, which aims to solve the problems that the existing interlocking control system is low in air inlet efficiency, cannot automatically adjust the system along with the fluctuation of the concentration of hydrogen sulfide, cannot filter air, is improper in exhaust treatment and is easy to pollute the environment. An interlocking control system of a complexing iron absorption hydrogen sulfide device comprises an air inlet pressure transmitter, an air inlet online hydrogen sulfide detector, a first-stage absorption tower, a first-stage spray pump outlet online ORP detector, a first-stage absorption tower liquid level transmitter, a first-stage tower reflux pump outlet regulating valve, a first-stage absorption pump, an aeration fan, a medicament regeneration box, a sulfur slurry pump, a second-stage tower reflux pump outlet regulating valve, a second-stage tower reflux pump, a second-stage absorption tower liquid level transmitter, a second-stage spray pump outlet online ORP detector, a second-stage absorption tower, a fan, an air outlet online hydrogen sulfide detector, a sulfur filter press, an air inlet flow controllable box structure, an air filtration separation tank structure and an air outlet antifouling adsorption filter box structure, wherein the air inlet pressure transmitter and the air inlet online hydrogen (ii) a One end of the first-stage spray pump outlet online ORP detector is connected with an inlet at the right lower side of the first-stage absorption tower through a pipeline, and the other end of the first-stage spray pump outlet online ORP detector is connected with an outlet at the left side of the first-stage absorption pump through a pipeline; the pipeline at the inlet of the right end of the primary absorption pump is connected with the outlet of the upper left side of the medicament regeneration box; the pipeline at the lower right side of the front part of the primary absorption tower is connected with an online ORP detector of the primary absorption tower; the pipeline at the lower right side of the primary absorption tower is connected with a primary absorption tower liquid level transmitter; one end of the first-stage tower reflux pump is connected with the inlet at the left lower side of the medicament regeneration box through a first-stage tower reflux pump outlet regulating valve pipeline, and the other end of the first-stage tower reflux pump is connected with the bottom outlet of the first-stage absorption tower through a pipeline; the outlet of the aeration fan is connected with the inlet of the medicament regeneration box through a pipeline; the pipeline at the outlet of the first-stage absorption tower is connected with the inlet of the second-stage absorption tower; one end of the secondary absorption pump is connected with the outlet of the upper right side of the medicament regeneration box through a pipeline, and the other end of the secondary absorption pump is connected with the inlet of the upper left side of the secondary absorption tower through an online ORP detector pipeline of the outlet of the secondary spray pump; one end of the second-stage tower reflux pump is connected with the outlet of the second-stage absorption tower through a pipeline, and the other end of the second-stage tower reflux pump is connected with the inlet of the right lower side of the medicament regeneration box through an outlet regulating valve of the second-stage tower reflux pump through a pipeline; the pipeline at the lower left side of the secondary absorption tower is connected with a secondary absorption tower liquid level transmitter; the pipeline at the lower left side of the front part of the secondary absorption tower is connected with an online ORP detector of the secondary absorption tower; one end of the fan is connected with the outlet at the top of the secondary absorption tower through a pipeline, and the other end of the fan is connected with the inlet of the gas outlet on-line hydrogen sulfide detector through a pipeline; one end of the sulfur filter press is connected with an inlet at the upper part of the medicament regeneration box through a pipeline, and the other end of the sulfur filter press is connected with an outlet at the lower part of the medicament regeneration box through a pipeline of a sulfur slurry pump; the air inlet flow controllable box structure is connected with the air inlet pressure transmitter; the air filtering separation tank structure is connected with an aeration fan; the antifouling adsorption filter box structure of giving vent to anger and gas outlet online hydrogen sulfide detector.
Preferably, the gas inlet pressure transmitter, the gas inlet online hydrogen sulfide detector, the first-stage spray pump outlet online ORP detector, the first-stage absorption tower liquid level transmitter, the first-stage tower reflux pump outlet regulating valve, the second-stage absorption tower liquid level transmitter, the second-stage spray pump outlet online ORP detector, the second-stage absorption tower online ORP detector and the gas outlet online hydrogen sulfide detector form an instrument valve controller structure.
Preferably, the first-stage absorption tower, the first-stage tower reflux pump, the first-stage absorption pump, the aeration fan, the medicament regeneration box, the sulfur slurry pump, the second-stage tower reflux pump, the second-stage absorption tower, the fan and the sulfur filter press form a complex iron absorption machine structure.
Preferably, the structure of the intake flow controllable box comprises an intake box, an intake fan, an intake net, a flow control plate, a rotating shaft and an adjusting handle, wherein the intake fan is connected to an inlet at the left end of the intake box through a screw; the left side of the inside of the air inlet box is connected with an air inlet net through a bolt; the control quantity plate is arranged on the right side in the air inlet box, one end of the control quantity plate is connected with the right end of the inner top of the air inlet box through a rotating shaft bearing, and the other end of the control quantity plate is connected with the right end of the inner bottom of the air inlet box through an adjusting handle.
Preferably, the air filtering separation tank structure comprises a separation box, a separation plate, an air inlet pipe, an air filtering tank, an air inlet hose and an air outlet hose, wherein the separation plate is connected to the middle part inside the separation box through a bolt; the inlet at the left end of the separation box is in threaded connection with an air inlet pipe; the middle part of the lower part of the separation box is connected with an air filter tank through a bolt; one end of the air inlet hose is in threaded connection with an outlet at the lower part of the separation box, and the other end of the air inlet hose is in threaded connection with an inlet at the lower left side of the air filter tank; one end of the outlet pipe hose is in threaded connection with an inlet at the lower part of the separation box, and the other end of the outlet pipe hose is in threaded connection with an outlet at the lower right side of the air filtering tank.
Preferably, the air outlet antifouling adsorption filter box structure comprises an air outlet box, an air outlet discharge pipe, an air inlet valve, a cleaning cover, a filter screen plate and an adsorption filter element, wherein the air inlet valve is in threaded connection at the lower inlet of the left end of the air outlet box, and the air outlet discharge pipe is in threaded connection at the right end of the air outlet box; the upper outlet of the air outlet box is in threaded connection with a cleaning cover; the left side and the right side of the lower part of the cleaning cover are both connected with a filter screen plate through bolts; and the inner side between the filter screen plates is connected with an adsorption filter element through bolts.
Preferably, the upper end of the quantity control plate is connected with the lower end of the rotating shaft through a bolt, and the lower end of the quantity control plate is connected with the upper end of the adjusting handle through a bolt.
Preferably, the outlet on the right side of the air inlet box is connected with an air inlet pressure transmitter and an air inlet on-line hydrogen sulfide detector which are arranged in parallel through pipelines.
Preferably, the pipeline at the outlet of the right end of the separation box is connected with the inlet of the aeration fan.
Preferably, the pipeline of the air inlet valve is connected with an outlet of the online hydrogen sulfide detector of the air outlet.
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, the primary tower reflux pump, the primary absorption pump, the aeration fan, the secondary tower reflux pump, the secondary absorption pump and the fan are controlled by frequency conversion, so as to realize the automatic stable operation function of the system.
2. In the invention, the air inlet pressure transmitter, the air inlet on-line hydrogen sulfide detector, the primary absorption tower, the primary spray pump outlet on-line ORP detector, the primary absorption tower liquid level transmitter, the primary tower reflux pump outlet regulating valve, the primary absorption pump, the aeration fan, the medicament regeneration box, the sulfur slurry pump, the secondary tower reflux pump outlet regulating valve, the secondary tower reflux pump, the secondary absorption tower liquid level transmitter, the secondary spray pump outlet on-line ORP detector, the secondary absorption tower, the fan, the air outlet on-line hydrogen sulfide detector and the sulfur filter press are arranged, and the formed interlocking control system realizes an automatic regulation system along with the fluctuation of the hydrogen sulfide concentration, ensures the absorption efficiency, enables the whole set of equipment to stably operate, and realizes unattended operation, The automatic operation can be effectively applied to the complex iron absorption device.
3. According to the invention, the air inlet box, the air inlet fan, the air inlet net, the quantity control plate, the rotating shaft and the adjusting handle are arranged, so that the air inlet quantity is increased, the filtering can be carried out, the absorption efficiency is ensured, air is continuously introduced into the air inlet box through the air inlet fan, the filtering is carried out through the air inlet net, the adjusting handle can be held by hand to rotate and adjust the position of the quantity control plate in the air inlet box through the rotating shaft according to the air inlet quantity requirement, the air inlet quantity adjusting operation can be carried out, and the operation convenience is ensured.
4. According to the invention, the separation box, the separation plate, the air inlet pipe, the air filtering tank, the air inlet hose and the outlet hose are arranged, so that air can be filtered, unstable absorption can be avoided, gas is introduced into the separation box through the air inlet pipe, the separation plate is used for isolating the gas, the gas is filtered by the air filtering tank through the air inlet hose and then is discharged through the outlet hose, and the gas can enter the system, so that the absorption working stability can be ensured.
5. In the invention, the air outlet box, the air outlet discharge pipe, the air inlet valve, the cleaning cover, the filter screen plate and the adsorption filter element are arranged, so that exhaust gas can be filtered, environmental pollution is avoided, the air is introduced into the air outlet box through the air inlet valve, after deep filtration and adsorption are carried out through the filter screen plate and the adsorption filter element, the exhaust gas can be discharged through the air outlet discharge pipe, the environmental pollution is avoided, the filter screen plate and the adsorption filter element can be cleaned or replaced by taking down the cleaning cover, and the operation is convenient.
6. In the invention, the gas inlet pressure transmitter, the gas inlet online hydrogen sulfide detector, the first stage spray pump outlet online ORP detector, the first stage absorption tower liquid level transmitter, the first stage tower reflux pump outlet regulating valve, the second stage absorption tower liquid level transmitter, the second stage spray pump outlet online ORP detector, the second stage absorption tower online ORP detector and the gas outlet online hydrogen sulfide detector form an instrument valve controller structure, which is beneficial to control, detection and convenient operation.
7. In the invention, the first-stage absorption tower, the first-stage tower reflux pump, the first-stage absorption pump, the aeration fan, the medicament regeneration box, the sulfur slurry pump, the second-stage tower reflux pump, the second-stage absorption tower, the fan and the sulfur filter press form a complex iron absorption machine structure, which is beneficial to ensuring the complex absorption efficiency.
8. In the invention, the variable frequency operation of the fan is adjusted by setting the value of the air inlet pressure transmitter to be-0.01 to-0.02 Mpa, when the value is lower than-0.01 Mpa, the frequency of the fan is increased, and when the value is-0.02 Mpa, the frequency adjustment is stopped, thereby ensuring that the system effectively collects the gas containing hydrogen sulfide.
9. In the invention, the frequency of the primary absorption pump is adjusted by setting the numerical value of the online ORP detector of the primary absorption tower, so that the absorption effect of hydrogen sulfide is ensured, and the excessive reduction of the medicament is prevented.
10. In the invention, the frequency of the secondary absorption pump is adjusted by setting the numerical value of the online ORP detector of the secondary absorption tower, so that the absorption effect of hydrogen sulfide is ensured, and the excessive reduction of the medicament is prevented.
Drawings
FIG. 1 is a schematic of the present invention.
Fig. 2 is a schematic structural view of the complex iron absorbing machine structure of the present invention.
FIG. 3 is a schematic structural view of an intake flow rate controllable box structure of the present invention.
Fig. 4 is a schematic structural view of the air filtration separation tank structure of the present invention.
Fig. 5 is a schematic structural diagram of the structure of the air-out antifouling adsorption filter box of the invention.
In the figure:
1. an air inlet pressure transmitter; 2. an air inlet on-line hydrogen sulfide detector; 3. a first-stage absorption tower; 4. an ORP detector is arranged at the outlet of the first-stage spray pump on line; 5. an online ORP detector of the first-stage absorption tower; 6. a primary absorption tower liquid level transmitter; 7. a first-stage tower reflux pump; 8. an outlet regulating valve of a first-stage tower reflux pump; 9. a primary absorption pump; 10. an aeration fan; 11. a drug regeneration box; 12. a sulfur slurry pump; 13. an outlet regulating valve of a second-stage tower reflux pump; 14. a second-stage tower reflux pump; 15. a secondary absorption pump; 16. a secondary absorption tower liquid level transmitter; 17. an ORP detector is arranged at the outlet of the second-stage spray pump on line; 18. an online ORP detector of the secondary absorption tower; 19. a secondary absorption tower; 20. a fan; 21. an air outlet on-line hydrogen sulfide detector; 22. a sulfur filter press; 23. an air inflow controllable box structure; 231. an air intake box; 232. an air inlet fan; 233. an air intake network; 234. a quantity control plate; 235. a rotating shaft; 236. an adjusting handle; 24. an air filtration and separation tank configuration; 241. a separation tank; 242. a separation plate; 243. an air inlet pipe; 244. an air filtration tank; 245. an air intake hose; 246. an outlet hose; 25. the structure of the air-out antifouling adsorption filter box; 251. an air outlet box; 252. an air outlet comb; 253. an intake valve; 254. cleaning the cover; 255. a filter screen plate; 256. and (5) adsorbing the filter element.
Detailed Description
The invention will be described in detail with reference to the accompanying drawings, as shown in fig. 1 and fig. 2, an interlocking control system of a complex iron hydrogen sulfide absorption device comprises an air inlet pressure transmitter 1, an air inlet on-line hydrogen sulfide detector 2, a primary absorption tower 3, a primary spray pump outlet on-line ORP detector 4, a primary absorption tower on-line ORP detector 5, a primary absorption tower liquid level transmitter 6, a primary tower reflux pump 7, a primary tower reflux pump outlet regulating valve 8, a primary absorption pump 9, an aeration fan 10, a medicament regeneration box 11, a sulfur pump 12, a secondary tower reflux pump outlet regulating valve 13, a secondary tower reflux pump 14, a secondary absorption pump 15, a secondary absorption tower liquid level transmitter 16, a secondary spray pump outlet on-line ORP detector 17, a secondary absorption tower on-line ORP detector 18, a secondary absorption tower 19, a fan 20, an air outlet on-line hydrogen sulfide detector 21, the device comprises a sulfur filter press 22, an air inlet flow controllable box structure 23, an air filtering separation tank structure 24 and an air outlet antifouling adsorption filter box structure 25, wherein an air inlet pressure transmitter 1 and an air inlet online hydrogen sulfide detector 2 are connected with a pipeline in parallel at the inlet of the lower left side of a primary absorption tower 3; one end of the first-stage spray pump outlet online ORP detector 4 is connected with an inlet at the right lower side of the first-stage absorption tower 3 through a pipeline, and the other end of the first-stage spray pump outlet online ORP detector is connected with an outlet at the left side of the first-stage absorption pump 9 through a pipeline; the pipeline at the inlet of the right end of the primary absorption pump 9 is connected with the outlet of the upper left side of the medicament regeneration box 11; the front right lower side pipeline of the primary absorption tower 3 is connected with a primary absorption tower online ORP detector 5; a pipeline at the lower right side of the primary absorption tower 3 is connected with a primary absorption tower liquid level transmitter 6; one end of the first-stage tower reflux pump 7 is connected with the inlet at the left lower side of the medicament regeneration box 11 through a first-stage tower reflux pump outlet regulating valve 8 by a pipeline, and the other end of the first-stage tower reflux pump is connected with the bottom outlet of the first-stage absorption tower 3 by a pipeline; the outlet of the aeration fan 10 is connected with the inlet of the medicament regeneration box 11 through a pipeline; the outlet pipeline of the first-stage absorption tower 3 is connected with the inlet of the second-stage absorption tower 19; one end of the secondary absorption pump 15 is connected with the outlet of the upper right side of the medicament regeneration box 11 through a pipeline, and the other end of the secondary absorption pump is connected with the inlet of the upper left side of the secondary absorption tower 19 through a pipeline of an online ORP detector 17 of a secondary spray pump outlet; one end of the second-stage tower reflux pump 14 is connected with the outlet of the second-stage absorption tower 19 through a pipeline, and the other end of the second-stage tower reflux pump is connected with the inlet of the right lower side of the medicament regeneration box 11 through a pipeline of a second-stage tower reflux pump outlet regulating valve 13; the pipeline at the lower left side of the secondary absorption tower 19 is connected with a secondary absorption tower liquid level transmitter 16; the pipeline at the lower left side of the front part of the secondary absorption tower 19 is connected with a secondary absorption tower online ORP detector 18; one end of the fan 20 is connected with the top outlet of the secondary absorption tower 19 through a pipeline, and the other end of the fan is connected with the inlet of the gas outlet on-line hydrogen sulfide detector 21 through a pipeline; one end of the sulfur filter press 22 is connected with the upper inlet of the medicament regeneration box 11 through a pipeline, and the other end is connected with the lower outlet of the medicament regeneration box 11 through a pipeline of the sulfur slurry pump 12; the air inlet flow controllable box structure 23 is connected with the air inlet pressure transmitter 1; the air filtering separation tank structure 24 is connected with the aeration fan 10; the gas outlet antifouling adsorption filter box structure 25 and the gas outlet online hydrogen sulfide detector 21.
In this embodiment, as shown in fig. 1, the gas inlet pressure transmitter 1, the gas inlet online hydrogen sulfide detector 2, the first-stage spray pump outlet online ORP detector 4, the first-stage absorption tower online ORP detector 5, the first-stage absorption tower liquid level transmitter 6, the first-stage tower reflux pump outlet regulating valve 8, the second-stage tower reflux pump outlet regulating valve 13, the second-stage absorption tower liquid level transmitter 16, the second-stage spray pump outlet online ORP detector 17, the second-stage absorption tower online ORP detector 18, and the gas outlet online hydrogen sulfide detector 21 constitute an instrument valve controller structure.
In this embodiment, as shown in fig. 2, the first-stage absorption tower 3, the first-stage tower reflux pump 7, the first-stage absorption pump 9, the aeration fan 10, the chemical regeneration box 11, the sulfur slurry pump 12, the second-stage tower reflux pump 14, the second-stage absorption pump 15, the second-stage absorption tower 19, the fan 20 and the sulfur filter press 22 form a complex iron absorption machine structure.
In this embodiment, referring to fig. 3, the intake flow controllable box structure 23 includes an intake box 231, an intake fan 232, an intake net 233, a flow control plate 234, a rotating shaft 235 and an adjusting handle 236, wherein the intake fan 232 is screwed to the inlet of the left end of the intake box 231; an air inlet net 233 is connected to the left side of the inside of the air inlet box 231 through bolts; the quantity control plate 234 is arranged at the right side inside the air inlet box 231, one end of the quantity control plate is connected with the right end of the inner top of the air inlet box 231 through a rotating shaft 235 in a bearing mode, and the other end of the quantity control plate is connected with the right end of the inner bottom of the air inlet box 231 in a bearing mode through an adjusting handle 236.
In this embodiment, referring to fig. 4, the air filtering and separating tank structure 24 includes a separating tank 241, a separating plate 242, an air inlet pipe 243, an air filtering tank 244, an air inlet hose 245 and an air outlet hose 246, wherein the separating plate 242 is bolted to the middle part inside the separating tank 241; an air inlet pipe 243 is in threaded connection with the inlet of the left end of the separation box 241; the middle part of the lower part of the separation box 241 is connected with an air filter tank 244 through bolts; one end of the air inlet hose 245 is in threaded connection with an outlet at the lower part of the separation box 241, and the other end of the air inlet hose is in threaded connection with an inlet at the left lower side of the air filter tank 244; one end of the outlet pipe hose 246 is in threaded connection with an inlet at the lower part of the separation box 241, the other end of the outlet pipe hose is in threaded connection with an outlet at the lower right side of the air filtering tank 244, gas is continuously introduced into the air inlet box 231 through the air inlet fan 232 and is filtered through the air inlet net 233, according to the air inflow requirement, the adjusting handle 236 can be held by hand to rotate and adjust the position of the control plate 234 in the air inlet box 231 through the rotating shaft 235, namely, the air inflow adjusting operation can be carried out, the operation convenience is ensured, gas is introduced into the separation box 241 through the air inlet pipe 243 and is isolated through the separation plate 242, the gas is filtered through the air filtering tank 244 through the air inlet hose 245 and then is discharged through the outlet pipe hose 246, the gas can enter.
In this embodiment, referring to fig. 5, the air outlet antifouling adsorption filter box structure 25 includes an air outlet box 251, an air outlet discharge pipe 252, an air inlet valve 253, a cleaning cover 254, a filter screen 255 and an adsorption filter element 256, wherein the air inlet valve 253 is connected to the lower inlet of the left end of the air outlet box 251 through a screw thread, and the air outlet discharge pipe 252 is connected to the right end of the air outlet box 251 through a screw thread; a cleaning cover 254 is connected with an outlet at the upper part of the air outlet box 251 in a threaded manner; the left side and the right side of the lower part of the cleaning cover 254 are both connected with a filter screen plate 255 through bolts; the inboard bolted connection between the filter screen board 255 have adsorption filter element 256, introduce gas through admission valve 253 inside gas box 251 to carry out the depth filter through filter screen board 255 and adsorption filter element 256 and adsorb the back, can discharge through outlet pipe 252, avoid environmental pollution, through taking off clearance lid 254, can clear up or change filter screen board 255 and adsorption filter element 256, convenient operation.
In this embodiment, specifically, the upper end of the quantity control plate 234 is bolted to the lower end of the rotating shaft 235, and the lower end of the quantity control plate 234 is bolted to the upper end of the adjusting handle 236.
In this embodiment, specifically, the outlet on the right side of the air inlet box 231 is connected with the air inlet pressure transmitter 1 and the inlet of the air inlet online hydrogen sulfide detector 2 through pipelines, which are connected with parallel pipelines.
In this embodiment, specifically, the pipeline at the outlet of the right end of the separation tank 241 is connected to the inlet of the aeration fan 10.
In this embodiment, specifically, the pipeline of the air inlet valve 253 is connected to the outlet of the online hydrogen sulfide detector 21.
In this embodiment, the quantity control plate 234 is a rectangular stainless steel plate.
In this embodiment, specifically, the air inlet net 233 is a rectangular stainless steel filter net.
In this embodiment, specifically, the air filter tank 244 is a stainless steel tank with an activated carbon core inside.
In this embodiment, specifically, a rubber sealing strip is disposed between the separation box 241 and the separation plate 242.
In this embodiment, specifically, the filter screen 255 is a stainless steel screen, and the adsorption filter 256 is a stainless steel fiber screen core with a cylindrical longitudinal section.
In this embodiment, specifically, the air supply fan 232 is an air supply fan with power of 1000-.
In this embodiment, specifically, the primary tower reflux pump 7, the primary absorption pump 9, the aeration fan 10, the secondary tower reflux pump 14, the secondary absorption pump 15 and the fan 20 adopt frequency conversion control, so as to realize the automatic stable operation function of the system.
Principle of operation
In the invention, PLC automatic programming interlocking is adopted, and the interlocking is set as follows:
the variable frequency operation of the fan 20 is adjusted through the set value of the air inlet pressure transmitter 1, so that the system is ensured to effectively collect the hydrogen sulfide-containing gas; the frequency of the primary absorption pump 9 is adjusted by setting the numerical value of the online ORP detector 5 of the primary absorption tower, so that the absorption effect of hydrogen sulfide is ensured, and excessive reduction of the medicament is prevented; the frequency of the secondary absorption pump 15 is adjusted by setting the numerical value of the online ORP detector 18 of the secondary absorption tower, so that the absorption effect of the hydrogen sulfide is ensured, and the excessive reduction of the medicament is prevented; the frequency of the aeration fan 10 is adjusted and the regeneration speed of the medicament is controlled through the numerical setting of the first-stage spray pump outlet online ORP detector 4 and the second-stage spray pump outlet online ORP detector 17, so that the regeneration of the medicament is controlled within a reasonable range; the opening of an outlet regulating valve of a first-stage tower reflux pump 8 is regulated through the numerical setting of a first-stage absorption tower liquid level transmitter 6, so that the liquid level of rich liquid in the absorption tower is kept stable, and the phenomenon that the liquid level is overhigh to generate tower overflow or the liquid level is overlow to cause dry burning of a first-stage tower reflux pump 7 is prevented; the opening of an outlet regulating valve of a reflux pump 13 of the secondary tower is regulated through the numerical value setting of a liquid level transmitter 16 of the secondary absorption tower, so that the liquid level of rich liquid in the absorption tower is kept stable, and the phenomenon that the liquid level is overhigh to generate tower overflow or the liquid level is overlow to cause dry burning of the reflux pump 14 of the secondary tower is prevented; through the time setting, the start of the sulfur slurry pump 12 and the sulfur filter press 22 is controlled, and sulfur is filtered and pressed periodically to prevent the deposition of sulfur; controlling the frequency of the secondary absorption pump 15 by setting the value of the gas outlet on-line hydrogen sulfide detector 21 to ensure that the hydrogen sulfide content of the tail gas is controlled in a stable range; the variable frequency operation of the fan 20 is adjusted by setting a numerical value of-0.01 to-0.02 Mpa for the air inlet pressure transmitter 1, when the numerical value is lower than-0.01 Mpa, the frequency of the fan is increased, and when the numerical value is lower than-0.02 Mpa, the frequency adjustment is stopped, so that the system is ensured to effectively collect the gas containing hydrogen sulfide; the frequency of the primary absorption pump 9 is adjusted by setting the numerical value of the online ORP detector 5 of the primary absorption tower, so that the absorption effect of hydrogen sulfide is ensured, and excessive reduction of the medicament is prevented; the frequency of the secondary absorption pump 15 is adjusted by setting the value of the online ORP detector 18 of the secondary absorption tower, so that the absorption effect of the hydrogen sulfide is ensured, and the excessive reduction of the medicament is prevented.
The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention.
Claims (10)
1. An interlocking control system of a device for absorbing hydrogen sulfide by complexing iron is characterized by comprising an air inlet pressure transmitter (1), an air inlet online hydrogen sulfide detector (2), a first-stage absorption tower (3), a first-stage spray pump outlet online ORP detector (4), a first-stage absorption tower online ORP detector (5), a first-stage absorption tower liquid level transmitter (6), a first-stage tower reflux pump (7), a first-stage tower reflux pump outlet regulating valve (8), a first-stage absorption pump (9), an aeration fan (10), a medicament regeneration box (11), a sulfur slurry pump (12), a second-stage tower reflux pump outlet regulating valve (13), a second-stage tower reflux pump (14), a second-stage absorption pump (15), a second-stage absorption tower liquid level transmitter (16), a second-stage spray pump outlet online ORP detector (17) and a second-stage absorption tower online ORP detector (18), the device comprises a secondary absorption tower (19), a fan (20), an air outlet online hydrogen sulfide detector (21), a sulfur filter press (22), an air inlet flow controllable box structure (23), an air filtering separation tank structure (24) and an air outlet antifouling adsorption filter box structure (25), wherein an air inlet pressure transmitter (1) and an air inlet online hydrogen sulfide detector (2) are connected with each other in parallel through a pipeline and connected to an inlet at the left lower side of a primary absorption tower (3); one end of the first-stage spray pump outlet online ORP detector (4) is connected with an inlet at the right lower side of the first-stage absorption tower (3) through a pipeline, and the other end of the first-stage spray pump outlet online ORP detector is connected with an outlet at the left side of the first-stage absorption pump (9) through a pipeline; the pipeline at the inlet of the right end of the primary absorption pump (9) is connected with the outlet of the upper left side of the medicament regeneration box (11); a pipeline at the right lower side of the front part of the primary absorption tower (3) is connected with an online ORP detector (5) of the primary absorption tower; a pipeline at the lower right side of the primary absorption tower (3) is connected with a primary absorption tower liquid level transmitter (6); one end of the first-stage tower reflux pump (7) is connected with an inlet at the left lower side of the medicament regeneration box (11) through a first-stage tower reflux pump outlet regulating valve (8) by a pipeline, and the other end of the first-stage tower reflux pump is connected with an outlet at the bottom of the first-stage absorption tower (3) by a pipeline; the outlet of the aeration fan (10) is connected with the inlet of the medicament regeneration box (11) through a pipeline; the outlet pipeline of the primary absorption tower (3) is connected with the inlet of the secondary absorption tower (19); one end of the secondary absorption pump (15) is connected with the outlet of the upper right side of the medicament regeneration box (11) through a pipeline, and the other end of the secondary absorption pump is connected with the inlet of the upper left side of the secondary absorption tower (19) through a pipeline of the online ORP detector (17) of the secondary spray pump outlet; one end of the secondary tower reflux pump (14) is connected with the outlet of the secondary absorption tower (19) through a pipeline, and the other end of the secondary tower reflux pump is connected with the inlet of the right lower side of the medicament regeneration box (11) through a pipeline through an outlet regulating valve (13) of the secondary tower reflux pump; the left lower pipeline of the secondary absorption tower (19) is connected with a secondary absorption tower liquid level transmitter (16); the left lower side pipeline at the front part of the secondary absorption tower (19) is connected with an online ORP detector (18) of the secondary absorption tower; one end of the fan (20) is connected with the top outlet of the secondary absorption tower (19) through a pipeline, and the other end of the fan is connected with the inlet of the gas outlet on-line hydrogen sulfide detector (21) through a pipeline; one end of the sulfur filter press (22) is connected with the upper inlet of the medicament regeneration box (11) through a pipeline, and the other end is connected with the lower outlet of the medicament regeneration box (11) through a pipeline of a sulfur slurry pump (12); the air inlet flow controllable box structure (23) is connected with the air inlet pressure transmitter (1); the air filtering separation tank structure (24) is connected with the aeration fan (10); the gas outlet antifouling adsorption filter box structure (25) and the gas outlet online hydrogen sulfide detector (21).
2. The interlocking control system of the device for absorbing hydrogen sulfide by complexing iron according to claim 1, wherein the air inlet pressure transmitter (1), the air inlet online hydrogen sulfide detector (2), the first stage spray pump outlet online ORP detector (4), the first stage absorption tower online ORP detector (5), the first stage absorption tower liquid level transmitter (6), the first stage tower reflux pump outlet regulating valve (8), the second stage tower reflux pump outlet regulating valve (13), the second stage absorption tower liquid level transmitter (16), the second stage spray pump outlet online ORP detector (17), the second stage absorption tower online ORP detector (18) and the air outlet online hydrogen sulfide detector (21) form an instrument valve controller structure.
3. The interlocking control system of the device for absorbing hydrogen sulfide by complexing iron according to claim 1, wherein the first-stage absorption tower (3), the first-stage tower reflux pump (7), the first-stage absorption pump (9), the aeration fan (10), the agent regeneration box (11), the sulfur slurry pump (12), the second-stage tower reflux pump (14), the second-stage absorption pump (15), the second-stage absorption tower (19), the fan (20) and the sulfur filter press (22) form a complexing iron absorption machine structure.
4. The interlocking control system of a device for absorbing hydrogen sulfide by complexing iron as claimed in claim 1, wherein the structure (23) of the inlet flow controllable box comprises an inlet box (231), an inlet fan (232), an inlet net (233), a flow control plate (234), a rotating shaft (235) and an adjusting handle (236), the inlet of the left end of the inlet box (231) is connected with the inlet fan (232) by a screw; an air inlet net (233) is connected to the left side of the inside of the air inlet box (231) through bolts; the control plate (234) is arranged on the right side inside the air inlet box (231), one end of the control plate is connected with the right end of the top of the inner side of the air inlet box (231) through a rotating shaft (235) bearing, and the other end of the control plate is connected with the right end of the bottom of the inner side of the air inlet box (231) through an adjusting handle (236) bearing.
5. The interlocking control system of a device for absorbing hydrogen sulfide by complexing iron according to claim 1, wherein the air filtering separation tank structure (24) comprises a separation tank (241), a separation plate (242), an air inlet pipe (243), an air filtering tank (244), an air inlet hose (245) and an air outlet hose (246), the separation plate (242) is bolted to the middle part inside the separation tank (241); an inlet pipe (243) is connected to the inlet of the left end of the separation box (241) in a threaded manner; the middle part of the lower part of the separation box (241) is connected with an air filter tank (244) through a bolt; one end of the air inlet hose (245) is in threaded connection with an outlet at the lower part of the separation box (241), and the other end of the air inlet hose is in threaded connection with an inlet at the lower left side of the air filter tank (244); one end of the outlet pipe hose (246) is in threaded connection with an inlet at the lower part of the separation tank (241), and the other end of the outlet pipe hose is in threaded connection with an outlet at the lower right side of the air filter tank (244).
6. The interlocking control system of the device for absorbing hydrogen sulfide by complexing iron according to claim 1, wherein the structure (25) of the air outlet antifouling adsorption filter box comprises an air outlet box (251), an air outlet discharge pipe (252), an air inlet valve (253), a cleaning cover (254), a filter screen plate (255) and an adsorption filter element (256), wherein the air inlet valve (253) is in threaded connection with the inlet at the lower part of the left end of the air outlet box (251), and the air outlet discharge pipe (252) is in threaded connection with the right end of the air outlet box; the upper outlet of the gas outlet box (251) is in threaded connection with a cleaning cover (254); the left side and the right side of the lower part of the cleaning cover (254) are both connected with a filter screen plate (255) through bolts; and the inner side between the filter screen plates (255) is connected with an adsorption filter element (256) through bolts.
7. The interlocking control system of a device for absorbing hydrogen sulfide by complexing iron according to claim 4, wherein the upper end of the control plate (234) is bolted to the lower end of the rotating shaft (235), and the lower end of the control plate (234) is bolted to the upper end of the adjusting handle (236).
8. The interlocking control system of the device for absorbing hydrogen sulfide by complexing iron according to claim 4, wherein the outlet at the right side of the air inlet box (231) is connected with the air inlet pressure transmitter (1) and the air inlet on-line hydrogen sulfide detector (2) which are arranged in parallel through pipelines.
9. The interlocking control system of the complex iron hydrogen sulfide absorption device according to claim 5, wherein the pipeline at the outlet of the right end of the separation box (241) is connected with the inlet of the aeration fan (10).
10. The interlocking control system of the device for absorbing hydrogen sulfide by complexing iron according to claim 6, wherein the pipeline of the air inlet valve (253) is connected with the outlet of the online hydrogen sulfide detector (21).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011522622.2A CN112642274A (en) | 2020-12-22 | 2020-12-22 | Interlocking control system of device for absorbing hydrogen sulfide by complexing iron |
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| CN202011522622.2A CN112642274A (en) | 2020-12-22 | 2020-12-22 | Interlocking control system of device for absorbing hydrogen sulfide by complexing iron |
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| CN202011522622.2A Pending CN112642274A (en) | 2020-12-22 | 2020-12-22 | Interlocking control system of device for absorbing hydrogen sulfide by complexing iron |
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