CN204768209U - Troilite relieving haperacidity tail gas absorbing device with explosion -proof function - Google Patents
Troilite relieving haperacidity tail gas absorbing device with explosion -proof function Download PDFInfo
- Publication number
- CN204768209U CN204768209U CN201520323159.7U CN201520323159U CN204768209U CN 204768209 U CN204768209 U CN 204768209U CN 201520323159 U CN201520323159 U CN 201520323159U CN 204768209 U CN204768209 U CN 204768209U
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- CN
- China
- Prior art keywords
- tail gas
- explosion
- tube
- utility
- pipe
- 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.)
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- 238000004880 explosion Methods 0.000 title claims abstract description 14
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 title abstract description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 47
- 239000006096 absorbing agent Substances 0.000 claims description 45
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 claims description 10
- 229910052683 pyrite Inorganic materials 0.000 claims description 10
- 239000011028 pyrite Substances 0.000 claims description 10
- 230000002265 prevention Effects 0.000 claims description 9
- MVZXTUSAYBWAAM-UHFFFAOYSA-N iron;sulfuric acid Chemical compound [Fe].OS(O)(=O)=O MVZXTUSAYBWAAM-UHFFFAOYSA-N 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
- 239000001117 sulphuric acid Substances 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 15
- 239000007788 liquid Substances 0.000 description 14
- 238000010521 absorption reaction Methods 0.000 description 13
- 229940032330 sulfuric acid Drugs 0.000 description 9
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 239000010413 mother solution Substances 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 239000012452 mother liquor Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 238000004023 plastic welding Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Gas Separation By Absorption (AREA)
Abstract
The utility model relates to a sulphuric acid production field, specific saying so relates to troilite relieving haperacidity tail gas absorbing device with explosion -proof function. In order to solve the security problem that exists among the present sulphuric acid iron ore relieving haperacidity tail gas absorbing device, the utility model discloses a troilite relieving haperacidity tail gas absorbing device with explosion -proof function is including the the tower of absorb the remnant air who concatenates in proper order to and concatenate the terminal tail gas chimney in the tower of absorb the remnant air, and what be different from prior art is, a the tower of absorb the remnant air's top still is connected with U type pipe, the open end and the atmosphere intercommunication of U type pipe, still including the drain pipe, the drain pipe sets up on the pipe wall between U type socle portion and the open end of U type pipe. Through the utility model discloses a pressure release in the twinkling of an eye when tail gas treatment explosion -proof equipment can make tail gas processing apparatus break down, protective apparatus's body safety. Furthermore, the utility model discloses a tail gas treatment explosion -proof equipment has characteristics such as small investment, easy operation, security performance height.
Description
Technical field
The utility model relates to gas washing in SA production field, particularly relates to the absorption of sulfuric-acid production tail gas, more specifically relates to the pyrite-based sulfuric acid production device for absorbing tail gas with explosion prevention function.
Background technology
Utilize troilite to prepare in the technique of sulfuric acid and can occur not absorb the problem of environmental pollution that sulfur dioxide completely enters air.The process of sulfur dioxide is the major issue of relationship environment protection and economic benefit, the emphasis that Ye Shi China sulfur dioxide reduces discharging.
The utility model for be pyrite-based sulfuric acid production tail gas sodium method absorption plant.
Sulfate system tail gas enters from absorption tower bottom inlet, and absorbent NaOH to reservoir separatory through top of tower import, then carries out the reverse mass transfer of gas-liquid phase by packing layer each in tower and absorbs, and produces absorbing liquid sodium sulfite and discharges to the outlet of tower bottom absorbing liquid.It is that absorption process is guaranteed to absorb tail gas qualified discharge that absorbing liquid PH controls about 6, as far as possible effectively reclaims low concentration SO under the normal or non-normal condition of furnace gas
2a crucial indispensable link.As absorption liquid pH <5, its absorbing liquid can produce supersaturation, is difficult to produce gas-liquid mass transfer, and even absorbing liquid is local-crystalized, causes the absorption tail gas of discharge to exceed standard and the not upper amount of Recycling Mother Solution pump.Therefore strictly must control absorption liquid pH well in this link, lay the first stone for the qualified discharge of tail gas and the safety and steady of tail gas unit run.
Sulfuric acid tail gas adopts NaOH as absorbing liquid, because of proportion and the climate control issues of circulating mother liquor, circulating mother liquor proportion increases, temperature reduces circulating mother liquor flow velocity all may be caused to decline even crystallization, sieve plate is caused to block or the blocking of tower drain pipe, airflow is obstructed, and in tower, gas pressure goes up instantaneously, and then causes tower body to burst, cause very large impact to the stable operation of production system, security risk is produced to the person simultaneously.
Summary of the invention
In order to solve the safety issue existed in existing sulfuric acid iron ore relieving haperacidity device for absorbing tail gas, the utility model discloses a kind of pyrite-based sulfuric acid production device for absorbing tail gas with explosion prevention function, comprise the tail gas absorber be connected in series successively, and be serially connected with the tail gas funnel of tail gas absorber end, what be different from prior art is, the top of the first tail gas absorber is also connected with U-tube, the open end of described U-tube is communicated with air, also include drainpipe, described drainpipe is arranged at bottom U-tube and on tube wall between U-tube open end.
Multiple tail gas absorber can be provided with in a set of equipment.In order to the form of serial connection is described, we illustrate with two tail gas absorbers.
The inlet tube of tail gas is passed into the bottom of the first tail gas absorber, the top of the first tail gas absorber is connected with a pipeline, the other end of this pipeline passes into the bottom of the second tail gas absorber, make to be delivered to the second tail gas absorber through the gas of the first absorption tower process by this pipeline, the top of the second tail gas absorber is connected with a pipeline equally, the other end of this pipeline passes into tail gas funnel, thus by emptying for the tail gas after twice process.
Of the present utility modelly focus on, arrange a U-tube at the top of the first tail gas absorber, its one end is communicated with the first tail gas absorber by tube connector, and the other end opens wide, and is communicated with air.
Usually our this U-tube preferred adopts PVC material, and be connected the mode adopting Plastic Welding with tail gas absorber, the sheet material used and the thickness of pipeline are not less than 10mm.
By the mode to water filling in U-tube, the water seal effect of this U-tube can be realized, and when air pressure increases, utilize the drainpipe be communicated with it, thus realize the effect that is communicated with of the first tail gas absorber and air, and then realize the whole connection being installed on air.
Further, we also preferred described tube wall are provided with multiple drainpipe, and each drainpipe is provided with draining valve.Thus can as required, opening and closing draining valve, controls maximum permission air pressure.
Preferably, we are respectively provided with a drainpipe in the centre of described tube wall and top.
Preferred as one, can also include water inlet pipe, and be arranged at the water intaking valve on water inlet pipe, the mouth of pipe of described water inlet pipe is positioned at above U-tube open end.
Moment pressure release when exhaust gas processing device can be made to break down by vent gas treatment explosion-protection equipment of the present utility model, the ontological security of proterctive equipment.In addition, vent gas treatment explosion-protection equipment of the present utility model has small investment, simple to operate, security performance high.
Accompanying drawing explanation
Fig. 1 is the pyrite-based sulfuric acid production device for absorbing tail gas schematic diagram with explosion prevention function;
Fig. 2 is that the authorized pressure value of explosion-proof part illustrates schematic diagram.
Detailed description of the invention
In order to better understand the utility model, below we in conjunction with specific embodiments and accompanying drawing, the utility model is further elaborated.
The pyrite-based sulfuric acid production device for absorbing tail gas with explosion prevention function as shown in Figure 1, comprises two tail gas absorbers be connected in series successively, is respectively the first tail gas absorber 2 and the second tail gas absorber 7, has been connected in series tail gas funnel 8 at the end of the second tail gas absorber 7.We see in Fig. 1, inlet exhaust gas pipe 5 is communicated to the bottom of the first tail gas absorber 2, the offgas outlet pipe 6 of the first tail gas absorber 2 connects the top of the first tail gas absorber 2 and the bottom of the second tail gas absorber 7 respectively, the top of the second same tail gas absorber 7 is also provided with an offgas outlet pipe, its end is connected to the bottom of tail gas funnel 8, and the flow direction of tail gas is inlet exhaust gas pipe 5 → the first tail gas absorber 6 bottom → the first tail gas absorber 6 top → the second tail gas absorber 7 bottom → the second tail gas absorber 7 tops → tail gas funnel → emptying.
In this arrangement, we pay close attention to the upper left hand corner section of Fig. 1 especially, we are provided with an explosion-protection equipment 1, this explosion-protection equipment 1 is the U-tube 9 being arranged at the first tail gas absorber 2 top, one end of U-tube 9 is communicated with by the top of pipeline with the first tail gas absorber 2, the other end is open end, is directly communicated with air.Also include drainpipe, described drainpipe is arranged at bottom U-tube and on tube wall between U-tube open end, for example we are preferably provided with two drainpipes in the present embodiment, one of them centre being positioned at tube wall is the top that subdrain pipe 10, is positioned at tube wall is high-order drainpipe 11.
Multiple tail gas absorber can be provided with in a set of equipment.In order to the form of serial connection is described, we illustrate with two tail gas absorbers.
By U-tube, achieve the first tail gas absorber 2 and be communicated with the direct of air.But when normally using, we need this path to close, what at this, we adopted is the thinking of water seal.Under normal circumstances, water seal pressure is greater than the pressure in the first tail gas absorber, thus ensures that whole port is sealing; When the pressure anomaly in the first tail gas absorber increases, its pressure is greater than water seal pressure, thus by the water in U-tube to a side pressure, water is impelled to be discharged by drainpipe, thus realize opening of this path, the first tail gas absorber is directly communicated with air, realizes emptying effect.Therefore, the decision of U-tube water seal water level is very important.
Enforcement for a better understanding of the present invention, below our composition graphs 2, the water level that we further illustrate water seal is selected.
Have two height in fig. 2, one is A height, and one is B height, and the service pressure of water seal is the water seal pressure that 2A produces.And B highly represents is the maximum pressure altitude that can bear.
The height of general water seal according to 1.5 times of calculating of tail gas absorber service pressure, thus determines the liquid level of water seal, ensures that the liquid level of water seal equals or slightly larger than the service pressure of tail gas absorber.But, the maximum Maximum safe pressure bearing pressure and must be less than tail gas absorber of this water seal, thus it is emptying to ensure to play pressure release, the object of protection tail gas absorber.
Owing to relating to water seal water problem, water can manually pour into from open end by we, also directly can arrange a water inlet pipe 12, and arrange water intaking valve on water inlet pipe, and the mouth of pipe of described water inlet pipe is positioned at above U-tube open end.Thus the perfusion of water is realized by the opening and closing of water intaking valve.
Before start uses, first open water intaking valve, water pours in U-tube, adjustment height of water level, thus makes 2A section pressure slightly larger than the service pressure of the first tail gas absorber.
Start, tail gas enters the first tail gas absorber by inlet exhaust gas pipe, NaOH absorbing liquid is by the Recycling Mother Solution groove 3 of inflow lower end, top, absorption tower, gas is by NaOH absorbing liquid sulfur dioxide absorption in uphill process, and the gas after process is exported by the offgas outlet pipe at top, enters the second tail gas absorber, and run from the bottom to top in second absorption tower, after double absorption, enter into tail gas funnel by outlet, and emptying.The NaOH liquid flowing into Recycling Mother Solution groove 3, via the effect of Recycling Mother Solution pump 4, reenters tower top, and carries out double absorption.
When blocking, when causing that in tower, gas pressure goes up instantaneously, excessive pressure acts on the water seal of U-tube, by the water of water seal layer constantly to open end side pressure, when water level arrives subdrain pipe, if the water valve of subdrain pipe is open mode, then water is discharged, U-tube and air communication, whole system pressure release is emptying; If the water valve of subdrain pipe is closed condition, then water continues to be pressed to rise, and discharge, thus it is emptying to realize pressure release to high-order drainpipe place.
Need and pressure needs according to different water levels, we optionally can arrange drainpipe, and the open and-shut mode of drainpipe water supply valve.
Claims (4)
1. there is the pyrite-based sulfuric acid production device for absorbing tail gas of explosion prevention function, comprise the tail gas absorber be connected in series successively, and be serially connected with the tail gas funnel of tail gas absorber end, it is characterized in that: the top of the first tail gas absorber is also connected with U-tube, the open end of described U-tube is communicated with air, also include drainpipe, described drainpipe is arranged at bottom U-tube and on tube wall between U-tube open end.
2. the pyrite-based sulfuric acid production device for absorbing tail gas with explosion prevention function according to claim 1, is characterized in that: described tube wall is provided with multiple drainpipe, and each drainpipe is provided with draining valve.
3. the pyrite-based sulfuric acid production device for absorbing tail gas with explosion prevention function according to claim 1, is characterized in that: also include water inlet pipe, and is arranged at the water intaking valve on water inlet pipe, and the mouth of pipe of described water inlet pipe is positioned at above U-tube open end.
4. the pyrite-based sulfuric acid production device for absorbing tail gas with explosion prevention function according to claim 2, is characterized in that: the centre of described tube wall and top are respectively provided with a drainpipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520323159.7U CN204768209U (en) | 2015-05-19 | 2015-05-19 | Troilite relieving haperacidity tail gas absorbing device with explosion -proof function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520323159.7U CN204768209U (en) | 2015-05-19 | 2015-05-19 | Troilite relieving haperacidity tail gas absorbing device with explosion -proof function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204768209U true CN204768209U (en) | 2015-11-18 |
Family
ID=54508341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520323159.7U Expired - Fee Related CN204768209U (en) | 2015-05-19 | 2015-05-19 | Troilite relieving haperacidity tail gas absorbing device with explosion -proof function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204768209U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109966866A (en) * | 2019-03-20 | 2019-07-05 | 苏州巨联环保有限公司 | Emission-control equipment |
-
2015
- 2015-05-19 CN CN201520323159.7U patent/CN204768209U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109966866A (en) * | 2019-03-20 | 2019-07-05 | 苏州巨联环保有限公司 | Emission-control equipment |
| CN109966866B (en) * | 2019-03-20 | 2023-10-13 | 苏州巨联环保有限公司 | Exhaust gas treatment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 210039 Zhonghua Menwai Xinjian, Yuhuatai District, Nanjing City, Jiangsu Province Patentee after: Nanjing Baodi Meishan Industrial City Development Co.,Ltd. Patentee after: SHANGHAI MEISHAN IRON & STEEL Co.,Ltd. Address before: 210039 Zhonghua Menwai Xinjian, Yuhuatai District, Nanjing City, Jiangsu Province Patentee before: NANJING MEISHAN METALLURGY DEVELOPMENT Co.,Ltd. Patentee before: SHANGHAI MEISHAN IRON & STEEL Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211110 Address after: 210039 Zhonghua Menwai Xinjian, Yuhuatai District, Nanjing City, Jiangsu Province Patentee after: Nanjing Baodi Meishan Industrial City Development Co.,Ltd. Address before: 210039 Zhonghua Menwai Xinjian, Yuhuatai District, Nanjing City, Jiangsu Province Patentee before: Nanjing Baodi Meishan Industrial City Development Co.,Ltd. Patentee before: SHANGHAI MEISHAN IRON & STEEL Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 |