CN204125283U - A kind of portable coking desulfurization waste liquor conversion system - Google Patents
A kind of portable coking desulfurization waste liquor conversion system Download PDFInfo
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- CN204125283U CN204125283U CN201420404729.0U CN201420404729U CN204125283U CN 204125283 U CN204125283 U CN 204125283U CN 201420404729 U CN201420404729 U CN 201420404729U CN 204125283 U CN204125283 U CN 204125283U
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- raw gas
- waste liquor
- desulfurization waste
- coking
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Abstract
The utility model discloses a kind of portable coking desulfurization waste liquor conversion system, this device comprises the desulfurization waste liquor storage tank, force (forcing) pump and the convertor that connect successively, described convertor arranges raw gas import and raw gas outlet, and described raw gas import and raw gas outlet arrange raw gas inlet guide smoke pipe and raw gas outlet guide smoke pipe respectively.The utility model portable coking desulfurization waste liquor conversion system structure is simple, easy handling, facility investment is little, existing equipment in coking system can be made full use of, significantly reduce the energy consumption of coal chemical enterprise, reduce production cost, and by material efficient recovery such as the water in desulfurization waste liquor, hydrogen sulfide, ammonia, water of productive use can be saved, reduce environmental pollution.
Description
Technical field
The utility model relates to the treatment unit of coking system desulfurization waste liquor, particularly relates to a kind of portable coking desulfurization waste liquor conversion system.
Background technology
In coking coal materials containing 0.5% ~ sulphur l.5%, wherein have the sulphur of 25% ~ 50% to enter in raw gas and form H
2s gas, with NH
3the various unwanted components in coal gas are formed together with HCN etc.H
2s and HCN can cause etching apparatus, and products of combustion also pollutes the environment the healthy of serious harm people, so coke-oven gas must carry out desulfuration and decyanation before use.
Wet oxidation desulfurization technology (PDS/HPF) is because equipment is simple, invest and running cost is low, stable operation, desulfuration efficiency are high, flow process is short and be widely applied by many coal chemical enterprises.But can inevitably there is side reaction and generate the secondary salt such as ammonium thiosulfate and ammonium thiocyanate in sweetening process, when secondary salt runs up to a certain degree, (>=250g/l) can make desulfuration efficiency decline, for ensureing that sweetening process is carried out efficiently, necessary discharge section waste liquid, therefore coking wet oxidation desulfurization creates a large amount of desulfurization waste liquors.And this part waste liquid is the mixture containing multiple toxic substance, COD, ammonia nitrogen and sulfide content are high simultaneously, directly with biochemical method process, more can not directly can not discharge.So how processing this waste liquid is the technical barrier that the coal chemical enterprise of all employing wet oxidation desulfurization technology all will solve.
Extensively adopt coal-blending coking method to process this desulfurization waste liquor at present, its detailed process is directly blended in coal blending by desulfurization waste liquor, then enters coke oven with coal blending, then utilizes the high temperature of coke oven to make its decomposition and inversion.This technology is due to less investment, simple to operate and be widely adopted, but exist by season and weather effect large, post smell is heavier, labour intensity is large, poor working environment, has the deficiencies such as heavy corrosion to the conveyor and support carrying coal blending, and desulfurization waste liquor is directly sprinkled upon in coal blending, the coking quality of coal blending also can be affected.
Publication number is that the patents such as CN101067096A, CN1113877A, CN1034349A and CN101402461A propose the method extracting the secondary salts such as ammonium thiosulfate in desulfurization waste liquor and ammonium thiocyanate, leaching process is mainly based on the difference of different salt solubility, by evaporation concentration, the method for fractional crystallization is carried out.This method is a kind of method that research is more at present, is extracted by the useful composition in desulfurization waste liquor, also meets the relevant policies requirement of country while improving coal chemical enterprise economic benefit; But due to two salt complicateds in desulfurization waste liquor, the ratio of ammonium thiocyanate and ammonium thiosulfate be among constantly change and also content lower, so cause operation easier large, in evaporating concentration process, energy consumption is high; In addition, the solubleness due to ammonium thiosulfate and ammonium thiocyanate is high and difference is little, so it is poor to cause major product ammonium thiocyanate purity, the rate of recovery is lower, is generally only 70%; Also there is useful component to lose with waste water simultaneously, and easily produce secondary pollution problems; And be limited to NH
4the market requirement of SCN etc., makes the secondary salts such as the ammonium thiosulfate that raises from coking desulfurization waste liquor and ammonium thiocyanate be difficult to sell, the predicament making enterprise be absorbed in product to pile up.
Publication number is the patent of CN 101798533A is then deliver in the annular spray line at coal store top by pipeline by desulfurization waste liquor, is sprayed onto by desulfurization waste liquor in coking coal, then enters in coke oven and utilizes high temperature during coking to make it transform decomposition.Although aforesaid method can make desulfurization waste liquor mix fully with coal, avoid the generation of the polluted underground water situation that to permeate the ground after desulfurization waste liquor is spilled into coal blending, achieve desulfurization waste liquor whole enter stove process, but method is identical with being directly blended in coal blending the essence processing desulfurization waste liquor, desulfurization waste liquor still directly contacts with defeated coal with coal, and still asking of unresolved existence is carried.
Publication number is the patent of CN101597073A, take desulfurization waste liquor as raw material, first through vacuum filtration, then with calcium phosphate+ forage thiocyanate ion wherein, then strips with sodium hydroxide solution, and last condensing crystal, washing is dry, obtained Sodium Thiocyanate 99 crystal.
Publication number is the patent of CN101219340A, by the method for catalyzed oxidation-selection complexing by the NH in desulfurization waste liquor
4sCN and complexing agent CuSO
4effect generates CuSCN, is then reacted by itself and recovery catalyst NaOH or KOH and generates NaSCN or KSCN liquid product, then by evaporation, after the operation such as crystallization, obtains NaSCN or KSCN solid phase prod.
Along with the increasingly stringent of national requirements for environmental protection, the increasing gradually of punishment, effective process of coking desulfurization waste liquor is very urgent.Although have a lot of method to can be applicable to the process of desulfurization waste liquor at present, ubiquity energy consumption is high, investment is large, complicated operation, easily problem such as generation secondary pollution and poor product quality etc., limits it and applies on a large scale.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of portable coking desulfurization waste liquor conversion system, this device can facilitate movement, the existing device made full use of in coking system realizes the conversion processing to desulfurization waste liquor, apparatus structure is simple, easy handling, facility investment is little, significantly reduce the energy consumption of coal chemical enterprise, reduce production cost.
For solving the problems of the technologies described above, the utility model provides a kind of portable coking desulfurization waste liquor conversion system, this device comprises the desulfurization waste liquor storage tank, force (forcing) pump and the convertor that connect successively, described convertor arranges raw gas import and raw gas outlet, and described raw gas import and raw gas outlet arrange raw gas inlet guide smoke pipe and raw gas outlet guide smoke pipe respectively.
Above-mentioned portable coking desulfurization waste liquor conversion system, wherein, described convertor arranges at least two raw gas imports and at least two raw gas outlets.
Above-mentioned portable coking desulfurization waste liquor conversion system, wherein, described convertor arranges two raw gas imports and two raw gas outlets, described two raw gas inlet guide smoke pipes are connected with two coal filling holes of a carbonizing chamber of coking system respectively, described two raw gas outlet guide smoke pipes are connected with the coal filling hole of two carbonizing chambers of coking system respectively, these two carbonizing chambers are non-conterminous, and the carbonizing chamber that one of them carbonizing chamber is connected with described raw gas inlet guide smoke pipe is adjacent, one, interval carbonizing chamber between the carbonizing chamber that another carbonizing chamber and described raw gas inlet guide smoke pipe are connected.
Above-mentioned portable coking desulfurization waste liquor conversion system, wherein, the ingress that described convertor is connected with force (forcing) pump arranges spray nozzle.
Above-mentioned portable coking desulfurization waste liquor conversion system, wherein, the ingress that described convertor is connected with force (forcing) pump arranges at least two spray nozzles.
Above-mentioned portable coking desulfurization waste liquor conversion system, wherein, described convertor arranges pressure-detecting device.
Above-mentioned portable coking desulfurization waste liquor conversion system, wherein, described convertor arranges explosion-proof equipment.
Above-mentioned portable coking desulfurization waste liquor conversion system, wherein, arranges strainer between described desulfurization waste liquor storage tank and force (forcing) pump.
Device of the present utility model, can movement separately on the track of coking system furnace roof, what also device of the present utility model can be arranged on furnace roof adds on coal car, move with the movement adding coal car, desulfurization waste liquor sends into spray nozzle by force (forcing) pump, spray in convertor, raw gas in coking system in N# carbonizing chamber enters in convertor via coal filling hole by raw gas inlet guide smoke pipe, the desulfurization waste liquor droplet sprayed into is instant vaporization conversion under coal gas of high temperature environment in convertor, the NH after vaporization in desulfurization waste liquor
4sCN, (NH
4)
2s
2o
3, (NH
4)
2sO
4deng material generation pyrolytic reaction, be converted into H
2s, NH
3and a small amount of nitrogen, the gas generated enters raw gas outlet guide smoke pipe with air-flow, enter in N+1# and N-2# carbonizing chamber by the coal filling hole of N+1# and N-2# carbonizing chamber in coking system, the gas generated mixes with raw gas at the top of carbonizing chamber and enters effuser with raw gas through upcast, bridge tube, enter the gas sweetening workshop section of coking system afterwards, be finally recycled with the form of sulphur, ammonium sulfate or ammoniacal liquor.
Portable coking desulfurization waste liquor of the present utility model transforms the device reclaimed and has following beneficial effect:
1, what the utility model device directly can be installed at coking system furnace roof adds on coal car, by means of the carbonizing chamber in coking system, upcast, bridge tube, effuser, the existing equipments such as running gear track, high temperature raw gas in carbonizing chamber of coke oven is imported convertor through coal filling hole, coal gas of high temperature is utilized desulfurization waste liquor vaporization to be transformed, vaporization and conversion process all make use of the waste heat of original coke-oven gas, device energy consumption needed in operational process is only the positive delivery of desulfurization waste liquor, therefore, device of the present utility model can significantly reduce in prior art the energy consumption processing desulfurization waste liquor, and device of the present utility model is simple, movement can be facilitated, the coal gas waste heat in each carbonizing chamber of coking system can be made full use of, easy handling, in original coking system, carry out simple transformation just can build up, facility investment is few,
2, the utility model device is in operational process; without the need to desulfurization waste liquor is directly contacted with coking furnace shaft with coal blending; avoid when desulfurization waste liquor being blended into coal blending or entering coke oven and cause the mass energy consumption in process of coking and corrosion due to the evaporation of desulfurization waste liquor and the decomposition of salt; simultaneously; desulfurization waste liquor is without the need to contacting with original coking furnace shaft; to avoid in desulfurization waste liquor water to the damage of coking furnace shaft inwall; protect coking furnace shaft; desulfurization waste liquor directly need not contact with coal blending, also improves the quality product of coal blending coking accordingly.
Accompanying drawing explanation
Fig. 1 is the utility model portable coking desulfurization waste liquor conversion system schematic diagram;
Fig. 2 is the schematic diagram be arranged on by portable for the utility model coking desulfurization waste liquor conversion system in coking system.
Embodiment
The utility model is described in detail below in conjunction with drawings and Examples.
As shown in Figure 1, portable coking desulfurization waste liquor conversion system of the present utility model comprises the desulfurization waste liquor storage tank 1, force (forcing) pump 2 and the convertor 3 that connect successively, convertor 3 arranges two raw gas imports and two raw gas outlets, raw gas import is arranged raw gas inlet guide smoke pipe 5, raw gas outlet arranges raw gas outlet guide smoke pipe 6.Convertor 3 arranges spray nozzle 4 with joint access place of force (forcing) pump 2, and the desulfurization waste liquor for high-pressure pump 2 being carried sprays in convertor 3.The convertor 3 of this device can also arrange pressure-detecting device and explosion-proof equipment (not shown), the security used with ensuring equipment.Between desulfurization waste liquor storage tank 1 and force (forcing) pump 2, can also strainer be set, enters in force (forcing) pump 2 to avoid particulate matter.
The working process of composition graphs 2 to portable coking desulfurization waste liquor conversion system of the present utility model is described.
Device of the present utility model can movement separately on the track of coking system furnace roof, what also can be arranged on furnace roof adds on coal car, move with the movement adding coal car, device is moved to above N# carbonizing chamber 7a, two coal filling holes of two of convertor 3 raw gas inlet guide smoke pipes 5 with N# carbonizing chamber 7a are connected, two of convertor 3 raw gas outlet guide smoke pipes 6 are connected with the coal filling hole of N-2# carbonizing chamber 7c with N+1# carbonizing chamber 7b respectively.N#, N+1#, N-2# refer to: 7a is adjacent with N+1# carbonizing chamber 7b for N# carbonizing chamber, one, interval carbonizing chamber between N# carbonizing chamber 7a and N-2# carbonizing chamber 7c, and N+1# carbonizing chamber 7b and N-2# carbonizing chamber 7c is non-conterminous.
Desulfurization waste liquor in coking system is by desulfurization waste liquor medial launder 11, strainer 13 is sent into through transferpump 12, desulfurization waste liquor enters height after filtering and puts in groove 14, and put groove 14 by height and enter in the desulfurization waste liquor storage tank 1 of the utility model device, desulfurization waste liquor by force (forcing) pump 2 carry be atomized via spray nozzle 4 after spray in convertor 3.The high pressure aqua ammonia pressure of the bridge tube 9b of N+1# carbonizing chamber 7b and the bridge tube 9c of N-2# carbonizing chamber 7c is improved, strengthen the negative pressure in N+1# and N-2# carbonizing chamber 7b, 7c, close the high pressure ammonia water valve of the bridge tube 9a of N# carbonizing chamber 7a again, the high temperature raw gas at N# carbonizing chamber 7a top is entered in convertor 3 by raw gas inlet guide smoke pipe 5.Under the high temperature raw gas effect of the desulfurization waste liquor droplet sprayed in convertor 3, (more than about 800 DEG C) instant vaporization transforms, and makes NH wherein
4sCN, (NH
4)
2s
2o
3(NH
4)
2sO
4h is generated Deng material generation pyrolysis
2s, NH
3and a small amount of nitrogen, due to coal gas of high temperature temperature about about 800 DEG C, conversion process is airtight, does not contact with air, can not generate oxynitride.After desulfurization waste liquor is vaporized conversion in convertor 3, import the top high-temperature space of N+1# carbonizing chamber 7b and N-2# carbonizing chamber 7c via the raw gas outlet guide smoke pipe 6 of transmodulator 3 with raw gas, and with the high temperature raw gas of N+1# carbonizing chamber 7b and N-2# carbonizing chamber 7c headspace via upcast 8b, 8c enters bridge tube 9b, in 9c, ammoniacal liquor sprays into bridge tube 9b via ammoniacal liquor sprinkling system, in 9c, after ammoniacal liquor sprays, water vapour in desulfurization waste liquor is condensed, enter in ammoniacal liquor, afterwards, raw gas, conversion reaction gas, ammoniacal liquor etc. enter effuser 10, mixed gas enters gas sweetening workshop section by the top of effuser 10, ammoniacal liquor etc. enter subsequent disposal workshop section by the below of effuser 10.Part NH in mixed gas
3enter in ammoniacal liquor, do not enter the NH in ammoniacal liquor
3follow-up gas purification workshop section is entered, H with gas mixture
2s proceeds reaction in follow-up desulfurization workshop section, according to the different choice of sulfur removal technology, final with sulfur product, or the form of sulfuric acid product leaves system, in desulfurization waste liquor conversion process, the water vapor of desulfurization waste liquor evaporation processes in follow-up ammonia steaming system with ammoniacal liquor, and the water in desulfurization waste liquor can be recycled in coal chemical enterprise.After a certain amount of desulfurization waste liquor is sprayed, portable coking desulfurization waste liquor conversion system of the present utility model continues to move to above other carbonizing chambers with adding coal car, repeats above-mentioned working process, cycle operation.
Claims (8)
1. a portable coking desulfurization waste liquor conversion system, it is characterized in that, this device comprises the desulfurization waste liquor storage tank, force (forcing) pump and the convertor that connect successively, described convertor arranges raw gas import and raw gas outlet, and described raw gas import and raw gas outlet arrange raw gas inlet guide smoke pipe and raw gas outlet guide smoke pipe respectively.
2. portable coking desulfurization waste liquor conversion system as claimed in claim 1, is characterized in that, described convertor arranges at least two raw gas imports and at least two raw gas outlets.
3. portable coking desulfurization waste liquor conversion system as claimed in claim 2, it is characterized in that, described convertor arranges two raw gas imports and two raw gas outlets, described two raw gas inlet guide smoke pipes are connected with two coal filling holes of a carbonizing chamber of coking system respectively, described two raw gas outlet guide smoke pipes are connected with the coal filling hole of two carbonizing chambers of coking system respectively, these two carbonizing chambers are non-conterminous, and the carbonizing chamber that one of them carbonizing chamber is connected with described raw gas inlet guide smoke pipe is adjacent, one, interval carbonizing chamber between the carbonizing chamber that another carbonizing chamber and described raw gas inlet guide smoke pipe are connected.
4. portable coking desulfurization waste liquor conversion system as claimed in claim 1, it is characterized in that, the ingress that described convertor is connected with force (forcing) pump arranges spray nozzle.
5. portable coking desulfurization waste liquor conversion system as claimed in claim 1, it is characterized in that, the ingress that described convertor is connected with force (forcing) pump arranges at least two spray nozzles.
6. portable coking desulfurization waste liquor conversion system as claimed in claim 1, it is characterized in that, described convertor arranges pressure-detecting device.
7. portable coking desulfurization waste liquor conversion system as claimed in claim 1, it is characterized in that, described convertor arranges explosion-proof equipment.
8. portable coking desulfurization waste liquor conversion system as claimed in claim 1, is characterized in that, arranges strainer between described desulfurization waste liquor storage tank and force (forcing) pump.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420404729.0U CN204125283U (en) | 2014-07-21 | 2014-07-21 | A kind of portable coking desulfurization waste liquor conversion system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420404729.0U CN204125283U (en) | 2014-07-21 | 2014-07-21 | A kind of portable coking desulfurization waste liquor conversion system |
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|---|---|
| CN204125283U true CN204125283U (en) | 2015-01-28 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111517391A (en) * | 2020-04-30 | 2020-08-11 | 杭州碳明科技有限公司 | High-temperature treatment device and process for high-COD wastewater |
| CN112062194A (en) * | 2020-08-05 | 2020-12-11 | 国家能源集团煤焦化有限责任公司 | Method for treating sulfur-containing sewage and bridge pipe |
-
2014
- 2014-07-21 CN CN201420404729.0U patent/CN204125283U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111517391A (en) * | 2020-04-30 | 2020-08-11 | 杭州碳明科技有限公司 | High-temperature treatment device and process for high-COD wastewater |
| CN112062194A (en) * | 2020-08-05 | 2020-12-11 | 国家能源集团煤焦化有限责任公司 | Method for treating sulfur-containing sewage and bridge pipe |
| CN112062194B (en) * | 2020-08-05 | 2023-04-18 | 国家能源集团煤焦化有限责任公司 | Method for treating sulfur-containing sewage and bridge pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150128 Termination date: 20150721 |
|
| EXPY | Termination of patent right or utility model |