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CN204918513U - Coal gas filtration purification equipment and gas supply pipeline - Google Patents

Coal gas filtration purification equipment and gas supply pipeline Download PDF

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Publication number
CN204918513U
CN204918513U CN201520383433.XU CN201520383433U CN204918513U CN 204918513 U CN204918513 U CN 204918513U CN 201520383433 U CN201520383433 U CN 201520383433U CN 204918513 U CN204918513 U CN 204918513U
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China
Prior art keywords
coal gas
filter core
air chamber
gas
purifying equipment
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CN201520383433.XU
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Chinese (zh)
Inventor
李欣
朱小健
王智炎
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MAANSHAN JIGAO ELECTROMECHANICAL EQUIPMENT MANUFACTURING Co Ltd
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MAANSHAN JIGAO ELECTROMECHANICAL EQUIPMENT MANUFACTURING Co Ltd
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Abstract

The utility model discloses a coal gas filtration purification equipment and gas supply pipeline belongs to coal gas purifier treatment equipment technical field. This equipment includes support, box, filter core and business turn over trachea and blowback scavenge pipe, on the support was placed in to the box, the intake pipe was established to box one side, and opposite side erection bracing frame, outlet duct are divided into a plurality of air chambers on placing the support frame in the box, and the intercommunication is connected with intake pipe, outlet duct respectively to every air chamber, if dry gas hole in the air chamber, the gas pocket embeds there is the filter core. The advantage is that the design is novel, and the structure letter gathers, rationally, the utility model discloses a filter core filters user's coal gas, and an air chamber filtration, and an air chamber blowback does not influence the supply of user's coal gas, gets rid of saline material, coal tar and dust in the coal gas effectively, adopt unique blowback device and spray set simultaneously, can wash and the blowback the filter core, guarantee the filter effects of filter core to have guaranteed also that user's coal gas is clean, improve the combustion efficiency of coal gas.

Description

A kind of coal gas filtering purifying equipment and gas supply pipeline
Technical field
The utility model belongs to gas purification treatment facility technical field, particularly relates to the filtering purifying equipment of mixed gas or coke-oven gas, also relates to the gas supply pipeline with this equipment.
Background technology
Well-known coke-oven gas is after dry method or wet desulphurization, and its hydrogen sulfide content is 200-500mg/NM 3, after coke-oven gas mixes with the nearly 1:1 of blast furnace gas, still do not reach steel rolling unit about hydrogen sulfide content lower than 80mg/NM 3requirement, therefore need to carry out dry desulfurization to coke-oven gas separately before mixing, carry out dry desulfurization to need to use dry oxidation iron sweetening agent, the as easy as rolling off a log efflorescence of this sweetening agent also enters in the middle of coke-oven gas, if mix with blast furnace gas and enter mixed gas, and blast furnace gas is after dry method or wet dedusting, its dust content is 5-20mg/NM 3, the coke-oven gas that therefore steel production enterprise is used or mixed gas or blast furnace gas are all containing dust; In addition coke-oven gas is also entrained with the salts substances of white.Before the utility model is not yet open; owing to considering coal gas through blast furnace dust removal process, desulfurization, de-naphthalene, the process of electric tar wet goods; all carry out further purifying treatment less than at user place; salts substances easily in relevant gas facility equipment place's crystallization and the corrosion of user, and is combined with dust, cause burning to chew, filtering net blocking; affect gas pressure and flow; cause efficiency of combustion to decline or cease fire, energy consumption increases simultaneously, and impact is normal produces and quality product.
Summary of the invention
In order to overcome the defect of prior art, the purpose of this utility model is to provide a kind of coal gas filtering purifying equipment, and structure is simple, practical, removes salts substances, coal tar and dust in coal gas, ensures the cleaning of user's coal gas, improves the efficiency of combustion of coal gas.
A kind of coal gas filtering purifying equipment, it comprises support, casing, filter core, turnover tracheae and blowback wash tube, described casing is placed on support, inlet pipe is established in casing side, and opposite side installs bracing frame, and escape pipe is placed on bracing frame, some air chambers are divided in casing, each air chamber connects with inlet pipe, escape pipe respectively, and establish some pores in air chamber, pore is built-in with filter core.Described filter core is 316L stainless steel wedge winded filtering core, and orchid is managed in the upper end of filter core, and filter core is bolted in the pore of air chamber, is convenient to more renew cartridge; The precision of filter core can select 80-200 order, by filter element filtering dry linting dirt, salt and coal tar.
Compared with prior art, advantage is novel, and structure letter is gathered, rationally, the utility model adopts filter core to filter user's coal gas, and an air chamber filters, an air chamber blowback, do not affect the supply of user's coal gas, effectively remove salts substances, coal tar and dust in coal gas; Adopt back-blowing device and spray equipment simultaneously, can clean and blowback filter core, ensure the filteration of filter core, also ensure that user's coal gas is clean, improve the efficiency of combustion of coal gas, guarantee that subsequent combustion system failure runs.
Accompanying drawing explanation
Illustrate below in conjunction with accompanying drawing and the utility model is further illustrated.
Fig. 1 is a kind of structural representation of coal gas filtering purifying equipment;
Fig. 2 is the side-view of Fig. 1.
Embodiment
For summary of the invention of the present utility model, Characteristic can be understood further, hereby exemplify following instance, and coordinate accompanying drawing to be described in detail as follows.
As can be seen from Fig. 1,2, a kind of coal gas filtering purifying equipment comprises support 1, casing 2, filter core 3 and into and out of tracheae, described casing is placed on support, and inlet pipe 4 is established in casing side, and opposite side installs bracing frame 5, escape pipe 6 is placed on bracing frame, be divided into two air chambers 7 in casing, each air chamber connects with inlet pipe, escape pipe respectively, and each air chamber is divided into three communities, establish three row to amount to 45 pores in the air chamber of each community, corresponding is provided with 45 filter cores.
In the present embodiment, described filter core 3 is 316L stainless steel wedge winded filtering core, and orchid is managed in the upper end of filter core, and filter core is bolted in the pore of air chamber, is convenient to more renew cartridge; The precision of filter core can select 80-200 order, by filter element filtering dry linting dirt, salt and coal tar wet goods impurity.
As improved procedure of the present utility model, also comprise back-blowing device, described back-blowing device comprises inlet pipe 8, first control valve 9 and the second control valve 10, first control valve is placed in N 2, on steam inlet duct, second control valve is placed on escape pipe 6, and the first control valve and the second control valve are electrically connected, when coal gas enters filter plant uniformly through filter core, each community has coal gas filter outlet conduit (DN450) to collect coal gas, and then gather and enter supervisor, during blowback, the first control valve is opened, second control valve is closed, use the steam of 4-6 kilogram to carry out blowback to sweep, first blow the dust be bonded on filter core, salts substances and coal tar off with steam, then use 4-6 kilogram of N 2dry up filter core.
As improved procedure of the present utility model, also comprise ash-discharging device, ash-discharging device comprises Unloading ball valve 11 and ash-unloading hopper 12, and ash-unloading hopper divided into by each air chamber, ash-unloading hopper is established the Unloading ball valve of band worm and gear, easy to operate, has good stopping property.
As improved procedure of the present utility model, also comprise spray equipment, spray equipment comprises well heater (not marking in figure), water pump (not marking in figure) and spray header 13, well heater is connected with spray header by water pump, spray header is placed in the air chamber in casing 2, spray header is just arranged filter core 3, after water heats by well heater, by water pump pressurization, the salinity on filter core and coal tar is carried out cleaning and dissolves removal.
As improved procedure of the present utility model, also comprise automatic control of liquid level water discharge valve 14, water discharge valve is horizontally fixed on ash-unloading hopper 12, discharges the ponding in ash-unloading hopper in time.
In the present embodiment, this coal gas filtering purifying equipment is applied on bell furnace.The penetrating area of two DN500 in existing bell furnace Shi Liangge district is 0.3925 square, adds that galvanizing line RTF gas main be the penetrating area of DN350 is 0.096 square, amounts to 0.4887 square.Therefore, existing coal gas filtering purifying equipment is divided into Liang Ge district, the penetrating area in each district is greater than 0.4887 square, otherwise some pressure-losseses can be produced, and the penetrating area of this equipment is 1% of filtration area, require that the filtration area in each district of coal gas filtering purifying equipment is greater than 48.87 squares, Liang Ge district is greater than 97.74 squares altogether.This filter plant has 270 filter core numbers, every root filtration area is 3.14*0.08 (diameter) * 1.5 (length)=0.3768 square, 270 total filtration areas of filter core number are 101.736 squares, and the penetrating area in each district is 0.5087 square, and design meets service requirements.
A kind of gas supply pipeline, comprise at least two coal gas filtering purifying equipments, valve and corresponding supporting connecting tube, the setting parallel with one another of coal gas filtering purifying equipment, is used by valve transfer, and one opens one standby, or two open, and realize the filtration, purification to user's coal gas.
After the utility model application, Be very effective, sees the following form.
Coal gas filtering net number of times (times/year) is cleaned before adding gas filter device Coal gas filtering net number of times (times/year) is cleaned after adding gas filter device Reduce number of times Cleaning coal gas filtering net affects the time (h) of production at every turn Add up to the activity duration (h) increased
24 4 20 192 3840
1, annual increase yield and output wound are imitated as follows:
Increase the activity duration (h) that filtration unit project increases bell type annealing furnace Mean hours output (hour/ton) Add up to increase yield (ton/year)
3840 1.91 7334.4
2, the consumption that can be situated between is reduced every year
Consume coal gas 4.55GJ by the hour to calculate, year gas saving 8736GJ, only can save nearly 300 tons of standard coals bell type annealing furnace workshop year.Other waste energy consumption and also do not add up interior.
It is all the process of carrying out heat temperature raising, insulation, the cooling of band cover, fast spraying cooling according to namely fixed annealing curve that bell type annealing furnace is annealed to each stove coil of strip to cold-rolled steel coils, rolling up when one heat steel is in heat temperature raising, insulating process once filtering net blocking occurs that gas pressure is low before burner, then can auto extinguishing.The temperature of this stove coil of strip then can decline, and annealing curve can depart from namely fixed annealing curve, and after causing the annealing of band steel, plate property does not meet namely fixed requirement.
Situation for galvanizing line annealing furnace radiator tubes section (RTF):
Radiation pipeline section (RTF) is furnished with the radiation pipe burner tip of radiator tube and band heat-exchanger rig, can realize net heat and reclaims and reduce NO xdischarge.Because steelmaking coal gas impurity is many, cause the thermo-efficiency of radiator tube low.After gas main increases filtration, purification, gas impurity is few, and burner combustion is stablized, and thermo-efficiency significantly improves, and in stove, evenly, what improve radiator tube makes the life-span to temperature.
(1) thermo-efficiency
The thermo-efficiency of gas fired radiant tubes is important technology performance index of radiator tube, depends primarily on furnace, radiator tube funnel temperature, excess air coefficient, also depends on whether have waste heat recovery unit.From the view point of the heat exchange efficiency of heat emissivity coefficient, it is ensure higher heat exchange efficiency that coal gas cleans, and occurring that gas impurity content is many, dust is more affects heat exchange efficiency.After use coal gas filtering purifying equipment, significantly reducing dust content makes thermo-efficiency bring up to 65% ~ 75% from original 50%, the thermo-efficiency of the telescoping radiator tube with flue gas recirculation reaches the highest, improves the life of radiator tube, saves relevant spare part expense.
(2) to have height to have low for the surface temperature of radiator tube surface temperature radiator tube, and reduce the pipe shaft temperature difference, the temperature distribution on furnace length direction, directly affects the thermal load of stove and the homogeneity of temperature distribution.
(3) work-ing life of radiator tube
Material, working temperature, surface temperature distribution and output rating that the work-ing life of radiator tube is used with radiator tube are relevant, but depend primarily on correct operation, daily maintenance and adjustment.Experience shows, proper operation and the impact of use on the life-span, important more than structure choice.As top temperature 950 DEG C, at conventional temperature 850 DEG C, 5 ~ 8 years can be used.Under oxidizing atmosphere, the working limit of radiator tube is 1000 DEG C, and under carbon deposit condition, ultimate temperature is 900 DEG C, and be 800 ~ 850 DEG C having under sulfide condition, be 600 ~ 700 DEG C under existing carbon deposit has again sulfide.

Claims (7)

1. a coal gas filtering purifying equipment, it is characterized in that comprising support (1), casing (2), filter core (3) and into and out of tracheae, described casing is placed on support, inlet pipe (4) is established in casing side, and opposite side installs bracing frame (5), and escape pipe (6) is placed on bracing frame, some air chambers (7) are divided in casing, each air chamber connects with inlet pipe, escape pipe respectively, and establish some pores in air chamber, pore is built-in with filter core.
2. coal gas filtering purifying equipment according to claim 1, it is characterized in that described filter core (3) is for managing orchid in the upper end of 316L stainless steel wedge winded filtering core filter core, filter core is bolted in the pore of air chamber (7); The precision of filter core is 80-200 order.
3. coal gas filtering purifying equipment according to claim 1, characterized by further comprising back-blowing device, and described back-blowing device comprises N 2inlet pipe (8), the first control valve (9) and the second control valve (10), the first control valve is placed in N 2in inlet pipe, the second control valve is placed on escape pipe (6), and the first control valve and the second control valve are electrically connected.
4. coal gas filtering purifying equipment according to claim 1, characterized by further comprising ash-discharging device, and ash-discharging device comprises Unloading ball valve (11) and ash-unloading hopper (12), and ash-unloading hopper divided into by each air chamber, ash-unloading hopper is established the Unloading ball valve of band worm and gear.
5. coal gas filtering purifying equipment according to claim 1, characterized by further comprising spray equipment, spray equipment comprises well heater, water pump and spray header (13), well heater is connected with spray header by water pump, spray header is placed in the air chamber in casing (2), and spray header is just arranged filter core (3).
6. coal gas filtering purifying equipment according to claim 1, characterized by further comprising automatic control of liquid level water discharge valve (14), and water discharge valve is horizontally fixed on ash-unloading hopper (12).
7. a gas supply pipeline, comprise at least two as the coal gas filtering purifying equipment in claim 1 to 6 as described in any one, valve and corresponding supporting connecting tube, the setting parallel with one another of coal gas filtering purifying equipment, is used by valve transfer.
CN201520383433.XU 2015-06-08 2015-06-08 Coal gas filtration purification equipment and gas supply pipeline Active CN204918513U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520383433.XU CN204918513U (en) 2015-06-08 2015-06-08 Coal gas filtration purification equipment and gas supply pipeline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520383433.XU CN204918513U (en) 2015-06-08 2015-06-08 Coal gas filtration purification equipment and gas supply pipeline

Publications (1)

Publication Number Publication Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107150000A (en) * 2017-07-07 2017-09-12 刘学红 The electrostatic power spraying apparatus in discrimination branch formula air channel
CN111944982A (en) * 2020-09-15 2020-11-17 大连万通能源装备有限公司 Novel energy-saving consumption-reducing continuous type cast tube annealing furnace system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107150000A (en) * 2017-07-07 2017-09-12 刘学红 The electrostatic power spraying apparatus in discrimination branch formula air channel
CN111944982A (en) * 2020-09-15 2020-11-17 大连万通能源装备有限公司 Novel energy-saving consumption-reducing continuous type cast tube annealing furnace system
CN111944982B (en) * 2020-09-15 2022-03-29 大连万通能源装备有限公司 Novel energy-saving consumption-reducing continuous type cast tube annealing furnace system

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