CN205774369U - Vertical coal gas washing dehydration integral system - Google Patents

Vertical coal gas washing dehydration integral system Download PDF

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Publication number
CN205774369U
CN205774369U CN201620555159.4U CN201620555159U CN205774369U CN 205774369 U CN205774369 U CN 205774369U CN 201620555159 U CN201620555159 U CN 201620555159U CN 205774369 U CN205774369 U CN 205774369U
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coal gas
outlet
collecting tank
circulating water
gas washing
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CN201620555159.4U
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徐庆余
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Huatian Engineering and Technology Corp MCC
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Huatian Engineering and Technology Corp MCC
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency

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Abstract

The open a kind of vertical coal gas washing dehydration integral system of this utility model, mainly for system can be easily at existing gas piping or arrange on newly-built gas piping and take up an area that space is little and the design that carries out.This utility model vertical coal gas washing dehydration integral system includes connecting into the circulating water device of closed circuit, vertical coal gas washing/dehydrating device, collecting tank along liquid flow direction.This utility model is arranged on existing or newly-built gas piping owing to taking up an area less can the increasing easily in space; whole system utilizes a small amount of water to wash the blast furnace gas containing noxious acidic material and salt; coal gas containing mechanical water carries out high-speed rotational in vertical coal gas washing/dehydrating device; the coal gas of higher temperature and water smoke carry out mass-and heat-transfer; dissolve the acidic materials in coal gas and salt; and remove machinery water droplet under the influence of centrifugal force; it is possible not only to protect pipe network and equipment; improve the heat utilization efficiency of coal gas simultaneously, save the energy.

Description

Vertical coal gas washing dehydration integral system
Technical field
This utility model relates to a kind of vertical coal gas washing dehydration integral system.
Background technology
Blast furnace gas is the manufacture gas in smelter blast furnace ironmaking process, occupies important in iron and steel enterprise's energy resource structure Position.Before 2000, Purify Process of Blast Furnace is main the most in a wet process, along with raising and the dry method cloth of environmental protection requirement Reaching its maturity and the innovation of filtering material (cloth bag) of bag dedusting technology, dry method dust has had become as a kind of trend and the most main The purification technique of stream.Compared with wet dedusting, dry method dust top pressure power generation amount increases about 25%～30% on year-on-year basis, has occupation of land Few, reduced investment, dust content of gas is low, and available gas heat greatly, does not produce the advantages such as waste water, environmental pollution be relatively small. On the other hand, blast furnace gas dry dusting also brings obvious shortcoming, owing to iron ore stores with harbour during sea-freight In need spray sea water dust suppression, substantial amounts of chloride ion enters in breeze, in addition in coal-injecting pulverized coal, coke and additive exist Sulfur and chlorine in blast furnace, generate a large amount of sour gas (SO2、SO3、H2S, HCL etc.) enter in blast furnace gas.Gas condensed water warp Measure generally containing CL-、SO4 2-, pH value is 4～6, even to 1～2, for highly acid, to equipment, pipeline, includes that stainless parts are equal Constitute heavy corrosion.Part steel mill gas piping about 6 months, stainless steel expansion joint occur as soon as office in the time of about 1 year Portion's burn into trommel even perforated phenomenon is so that change.HCL and NH in coal gas simultaneously3The NH generated4CL crystallizes, TRT, coal gas tube wall, boiler and heating furnace nozzle, compressor blade etc. pile up fouling, blocking channel, produce equipment greatly Harm, causes great potential safety hazard, increases operation expense.S too high levels in coal gas also directly result in air stove, The flue gas SO such as boiler2Discharge the most up to standard.Sour gas in blast furnace gas has become as public hazards, it is necessary to conscientiously study solution Certainly.
For the problems referred to above, the solution of current Some Enterprises is to increase spray alkali cleaning on the gas piping of TRT outlet Wash the facilities such as tower, to remove the harmful substance in coal gas.Although this method is effective, but owing to scrubbing tower and affiliated facility thereof are deposited Big (scrubbing tower diameter 6～10m, different according to heat size size) in floor space, investment height, water consumption (is this reality greatly on year-on-year basis With novel 2～4 times), the reasons such as operating cost is high and be very restricted, especially increase in the system of built operation Spray caustic scrubber more has bigger difficulty.
Utility model content
For the problems referred to above, this utility model offer one can be easily at existing gas piping or at newly-built gas pipe The vertical coal gas washing dehydration integral system arranged on road, vertical coal gas washing dehydration integral system is possible not only to remove coal Acidic materials in gas and salt, extend gas piping and the service life of equipment, and can save the area, and reduces operation maintenance expense With.
For reaching above-mentioned purpose, this utility model one vertical coal gas washing dehydration integral system, described system includes The circulating water device of closed circuit, vertical coal gas washing/dehydrating device, collecting tank is connected into along liquid flow direction；
The series connection of described vertical coal gas washing/dehydrating device is vertically mounted on gas piping, described vertical coal gas washing dehydration Device includes being vertically connected with the import pipeline section of setting, eddy flow mechanism, dehydration housing, outlet pipe section, wherein, described import successively Pipeline section, outlet pipe section connect with Import Gas pipeline, outlet gas piping respectively, and described import pipeline section is provided with liquid spray Mouth, described fluid injector is connected with described circulating water device by supply line, described dehydration housing be positioned at described outlet The lower section of section is provided with discharge outlet, and described discharge outlet is connected by drain pipe with described collecting tank；
The height that described collecting tank is arranged less than the height of described discharge outlet, described collecting tank and described circulating water device it Between pipeline on be provided with washings elevator pump；
Described eddy flow mechanism includes the eddy flow housing being connected with described dehydration housing and is arranged in described eddy flow housing Eddy flow, be provided with three-dimensional flow blade or two-dimensional current blade between the sub and described eddy flow housing of described eddy flow；
It is provided with import partition apparatus on described Import Gas pipeline, described outlet gas piping is provided with outlet Device, described Import Gas pipeline import partition apparatus upstream with outlet gas piping on outlet device under It is provided with coal gas bypass between trip, the bypass of described coal gas is provided with bypass partition apparatus.
Further, described discharge pipe line is provided with drain water seal device.
Further, being provided with nitrogen bubble pipe bottom described collecting tank, described nitrogen bubble pipe is provided with aperture；Described collection Liquid pool top is provided with the collecting tank delivery pipe of the coal gas being entrained in water for discharge；
Liquidometer, PH meter it is additionally provided with in described collecting tank.
Further, described circulating water device includes circulating water pool and is arranged on the recirculated water cooling above described circulating water pool But tower；
The water inlet of pipeline and described circulating water cooling tower that described collecting tank is provided by washings elevator pump connects Connecing, the outlet of described circulating water pool is connected with described fluid injector by supply line.
This utility model vertical coal gas washing dehydration integral system may be mounted at a certain seat height stove low pressure purified gas and goes out Mouthful and the total pipe network of full factory between pipeline on, it is also possible to be arranged on before Single gas user on gas piping, Import Gas pipeline Can export with blast furnace gas pressure regulator valve group, TRT (BPRT, STRT) outlet conduit welds or Flange joint, or with user's coal gas Pipeline connects；Outlet gas piping can be connected with full factory blast furnace gas main pipe, or is connected with a certain user entry pipeline.
This utility model vertical coal gas washing dehydration integral system sets owing to taking up an area less can the increasing easily in space Putting on existing or newly-built gas piping, whole system utilizes a small amount of water to the blast furnace coal containing noxious acidic material and salt Gas washs, and the coal gas containing mechanical water carries out high-speed rotational, the coal of higher temperature in vertical coal gas washing/dehydrating device Gas and water smoke carry out mass-and heat-transfer, dissolve the acidic materials in coal gas and salt, and removing machinery water droplet under the influence of centrifugal force, It is possible not only to protect pipe network and equipment, and owing to coal gas being stripped of mechanical water, improves the heat utilization efficiency of coal gas, saved energy Source.
Accompanying drawing explanation
Fig. 1 is existing blast furnace process system and conventional coal gas caustic washing system (spray caustic scrubber) schematic flow sheet；
Fig. 2 is this utility model vertical coal gas washing dehydration integral system schematic diagram.
Detailed description of the invention
Below in conjunction with Figure of description, this utility model is further described.
Embodiment 1
System described in the present embodiment vertical coal gas washing dehydration integral system includes connecting into along liquid flow direction following The circulating water device 5 of loop back path, vertical coal gas washing/dehydrating device 9, collecting tank device 4.Described vertical coal gas washing dehydration fills Putting 9 series connection to be vertically mounted on gas piping, described vertical coal gas washing/dehydrating device 9 includes being vertically connected with entering of setting successively Mouthful pipeline section, eddy flow mechanism 92, dehydration housing 91, outlet pipe section, described eddy flow mechanism 92 includes being connected with described dehydration housing Eddy flow housing and eddy flow being arranged in described eddy flow housing, be provided with three between the sub and described eddy flow housing of described eddy flow Flow filament or two-dimensional current blade.
Fluid injector 93, the lower section being positioned at described outlet pipe section of described dehydration housing 91 it is provided with on described import pipeline section Being provided with discharge outlet, the height that the collecting tank 41 of described collecting tank device 4 is arranged is less than the height of described discharge outlet, described draining Mouth is connected by drain pipe with described collecting tank 41；Circulating water device 5 includes circulating water pool 52 and is arranged on described recirculated water Circulating water cooling tower 54 above pond 52；Described collecting tank 41 is provided by the pipeline of washings elevator pump 47 and described circulation The water inlet of water cooling tower 54 connects, and the outlet of described circulating water pool 52 and described fluid injector 93 are by supply line 59 Connection, described supply line 59 is disposed with water circulating pump 58, adjusting means 6, and described adjusting means 6 includes effusion meter 62 With flow control valve 61.
Wherein, described import pipeline section, outlet pipe section connect with Import Gas pipeline 7, outlet gas piping 8 respectively.Institute State and on Import Gas pipeline 7, be provided with import partition apparatus 1, described outlet gas piping 8 is provided with outlet device 2, In the upstream of import partition apparatus 1 of described Import Gas pipeline and the downstream of outlet device 2 on outlet gas piping Between be provided with coal gas bypass conduit 10, described coal gas bypass conduit 10 is provided with bypass partition apparatus 3.Described import cuts off Device 1 is made up of import butterfly valve 11 and import blank-plate valve 12, and described outlet device 2 is by exit butterfly valve 21 and outlet blind plate Valve 22 forms, and described bypass partition apparatus 3 is by including that bypassing butterfly valve 31 forms with bypass blank-plate valve 32.
It is provided with the first nitrogen bubble pipe 43 bottom the collecting tank 41 of the present embodiment vertical coal gas washing dehydration integral system, Described first nitrogen bubble pipe 43 is provided with aperture；Described collecting tank 41 top is provided with the coal gas being entrained in water for discharge Collecting tank delivery pipe 45, be additionally provided with in described collecting tank the first liquidometer 42, PH meter 46.Draining is carried secretly and enters liquid collecting Coal gas in pond 41 is discharged by collecting tank delivery pipe 45 after bubbling buoyance lift, prevents coal gas from assembling；PH meter 46 may be used for Measure the pH value in collecting tank 41, can judge to control injection flow rate by the pH value of liquid further.First nitrogen drum Set regular miniature passage on bubble 43 and there is blockage resisting and self-cleaning function.
Circulation 5 have by from washing and desalination after recirculated water cool down, quenched, precipitation effect, And a part of underproof recirculated water is sent to plant area's water treatment system is processed by recirculated water discharge pipe 55, institute simultaneously State circulating water pool and be also associated with filling pipe 57, supplement the water lost in washing process and a small amount of outer draining.Cooling tower 54 bottom Being provided with circulating water pool 52, be provided with the second nitrogen bubble pipe 51 bottom circulating water pool 52, the second nitrogen bubble pipe 51 is provided with rule Shape aperture, described circulating water pool top is provided with the circulating water pool delivery pipe 56 of the coal gas being entrained in water for discharge, recirculated water In the coal gas carried secretly by being discharged by circulating water pool delivery pipe 56 after bubbling buoyance lift, prevent coal gas from assembling.Second nitrogen bubble Set regular miniature passage on pipe 51 and there is blockage resisting and self-cleaning function
As a kind of alternative embodiment, described vertical coal gas washing/dehydrating device 9 is positioned at the portion below described outlet pipe section Setting up separately and be equipped with inner chamber and exocoel, described discharge outlet is arranged on bottom described exocoel, the row that discharge outlet is connected with described collecting tank Water pipe is provided with liquid packing 44, can effectively prevent a large amount of coal gas to be flowed in collecting tank 41 or related system.
It is nozzle as nozzle 93 in a kind of alternative embodiment vertical coal gas washing/dehydrating device 9, uses along spray, spray The water smoke that mouth 93 is formed can all cover in whole circular passage, and after eddy flow mechanism 92 eddy flow, water is fully contacted with coal gas, will Acidic materials and salt in coal gas are dissolved in water, and can by water eddy flow to washing dehydration device tube wall and be deposited on bottom, by coal Overwhelming majority mechanical water removing in gas.
The import partition apparatus of maintenance use is set before and after the present embodiment vertical coal gas washing dehydration integral system and goes out Mouthful partition apparatus, and arrange in the side of described vertical coal gas washing/dehydrating device bypass duct and and bypass partition apparatus, from And bypass duct still can use as maintenance bypass when vertical coal gas washing dehydration integral system overhauls, do not affect whole The use of air supply system；Below pipeline, described circulation is set with appropriate location, side, it is achieved that following of washings Ring utilizes, and has saved resource and has reduced production cost.
Having the beneficial effect that of the present embodiment vertical coal gas washing dehydration integral system
1, the present embodiment vertical coal gas washing dehydration integral system, solves existing dry method dust coal gas system place narrow Little, it is impossible to newly-built large-scale spray caustic scrubber and affiliated facility thereof, thus affect pipeline and equipment long-term safety stable operation Problem.
2, for newly-built blast furnace and the coal gas system thereof of narrow field, it is possible to according to the present embodiment vertical coal gas washing dehydration Integral system is implemented, to solve gaspipe network and the problem of equipment heavy corrosion.
3, during the present embodiment vertical coal gas washing dehydration integral system can be additionally used in full factory coal gas system, part needs to wash The terminal use washing or being dehydrated, to meet individual needs and service especially.
4, the present embodiment vertical coal gas washing dehydration integral system is for large-scale spray caustic scrubber, due to this Utility model is provided with three-dimensional flow or two-dimensional current blades efficient eddy flow in vertical coal gas washing/dehydrating device, thus washing is imitated The best, dewatering efficiency is high, and water consumption is greatly decreased on year-on-year basis, and its cost of investment and operation and maintenance cost are low, and Subscriber Unit coal gas disappears Consumption is few.
The present embodiment vertical coal gas washing dehydration integral system, its system is run both can be automatic, it is also possible to manually.Cold Tower 54 is but provided with the second liquidometer 53 and filling pipe 57 control valve gate interlock, the flow control valve 61 arranged in feed pipe 59 With effusion meter 62 interlocked control, thus can automatically control as required or PLC Non-follow control nozzle confluent.
Above, preferred embodiment the most of the present utility model, but protection domain of the present utility model is not limited thereto, and appoints What those familiar with the art in the technical scope that this utility model discloses, the change that can readily occur in or replace Change, all should contain within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with claim The protection domain defined is as the criterion.

Claims (4)

1. a vertical coal gas washing dehydration integral system, it is characterised in that: described system includes along liquid flow direction even It is connected into the circulating water device of closed circuit, vertical coal gas washing/dehydrating device, collecting tank；
The series connection of described vertical coal gas washing/dehydrating device is vertically mounted on gas piping, described vertical coal gas washing/dehydrating device Including being vertically connected with the import pipeline section of setting, eddy flow mechanism, dehydration housing, outlet pipe section, wherein, described inlet tube successively Section, outlet pipe section connect with Import Gas pipeline, outlet gas piping respectively, and described import pipeline section is provided with fluid injector, Described fluid injector is connected with described circulating water device by supply line, described dehydration housing be positioned at described outlet pipe section Lower section is provided with discharge outlet, and described discharge outlet is connected by drain pipe with described collecting tank；
The height that described collecting tank is arranged is less than the height of described discharge outlet, between described collecting tank and described circulating water device Washings elevator pump it is provided with on pipeline；
Described eddy flow mechanism includes the eddy flow housing being connected with described dehydration housing and is arranged on the rotation in described eddy flow housing Stream, is provided with two-dimensional current or three-dimensional flow blade between the sub and described eddy flow housing of described eddy flow；
It is provided with import partition apparatus on described Import Gas pipeline, described outlet gas piping is provided with outlet dress Put, in the upstream of import partition apparatus of described Import Gas pipeline and the downstream of outlet device on outlet gas piping Between be provided with coal gas bypass, described coal gas bypass on be provided with bypass partition apparatus.
Vertical coal gas washing dehydration integral system the most according to claim 1, it is characterised in that: on described discharge pipe line It is provided with drain water seal device.
Vertical coal gas washing dehydration integral system the most according to claim 1, it is characterised in that: at the bottom of described collecting tank Portion is provided with nitrogen bubble pipe, and described nitrogen bubble pipe is provided with aperture；Described collecting tank top is provided with and is entrained in for discharge The collecting tank delivery pipe of the coal gas in water；
Liquidometer, PH meter it is additionally provided with in described collecting tank.
Vertical coal gas washing dehydration integral system the most according to claim 1, it is characterised in that: described circulating water device Including circulating water pool and be arranged on the circulating water cooling tower above described circulating water pool；
The water inlet of pipeline and described circulating water cooling tower that described collecting tank is provided by washings elevator pump is connected, described The outlet of circulating water pool is connected with described fluid injector by supply line.
CN201620555159.4U 2016-06-02 2016-06-02 Vertical coal gas washing dehydration integral system Active CN205774369U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620555159.4U CN205774369U (en) 2016-06-02 2016-06-02 Vertical coal gas washing dehydration integral system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620555159.4U CN205774369U (en) 2016-06-02 2016-06-02 Vertical coal gas washing dehydration integral system

Publications (1)

Publication Number Publication Date
CN205774369U true CN205774369U (en) 2016-12-07

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Country Status (1)

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