CN205216563U - Coke oven discharges filth treatment system - Google Patents

Coke oven discharges filth treatment system Download PDF

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Publication number
CN205216563U
CN205216563U CN201521080609.0U CN201521080609U CN205216563U CN 205216563 U CN205216563 U CN 205216563U CN 201521080609 U CN201521080609 U CN 201521080609U CN 205216563 U CN205216563 U CN 205216563U
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communicates
cleaning machine
water
gas
cigarette
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CN201521080609.0U
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齐琏发
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齐琏发
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Abstract

The utility model belongs to a coke oven discharges filth treatment system, including the percolation filter, the water tank, the drain sump, strain cream case and diaphragm pump, the upper end is equipped with one row of atomizer that spouts hydrogen liquid in the communicating flue of mouth with advancing, it communicates with each other and washes the inboard lower extreme of cigarette tower to advance the mouth, the outlet flue of washing the cigarette tower communicates with each other and washes the interior upper end of cigarette ware, the interior lower extreme of the washing the cigarette ware interior upper end of gas cleaner that communicates with each other, the gas outlet of gas cleaner communicates with each other through 8 font tornadotrons and drain sump, the upper end of drain sump is the export of discharging fume, the upper portion delivery port of percolation filter communicates with each other with the last water inlet of washing the cigarette ware respectively through the inlet tube and the lower water inlet of gas cleaner communicates with each other, the lower part delivery port of percolation filter communicates with each other through diaphragm pump and the interior upper end of straining the cream case. The utility model discloses the harmful flue gas of the stove exhaust of focusing carries out effectual cooling, dust removal, denitration, desulfurization, removes the acid treatment to reduce the working costs, have simple structure, stable performance, be convenient for the installation maintenance and the effectual advantage of managing pollution.

Description

A kind of coke oven discharge dirt governing system
Technical field
The utility model belongs to a kind of coke oven discharge dirt governing system.
Background technology
As everyone knows, the coke oven of coke-oven plant is that raw material produces coke, coal gas, ammonia spirit and coal tar with coal, but also discharge a large amount of high-temperature flue gas (in smokejack flue gas mean temperature 245 DEG C) simultaneously, containing noxious materials such as dust, sulfur dioxide, nitrogen oxide in high-temperature flue gas, severe contamination environment, the health of the infringement mankind.So the harmful smoke must discharged the coke oven of coke-oven plant is lowered the temperature, dedusting, denitration, desulfurization, except acid treatment.
Current domestic wet process of FGD device be mainly fountain, during dedusting denitration desulfurization process, from spray equipment ejection atomized water, fume gases enters end spaces in tower body from entering mouth, mix with atomized water in each smoke through hole from it, the noxious materials such as the flue dust in fume gases, sulfur dioxide, nitrogen oxide are dissolved in atomized water, both are again after moisture separator, clean flue gas is discharged from outlet flue, water containing noxious material then flows out at the bottom of absorption reaction tower from smoke through hole through liquid outlet, again after purified treatment, discharge.
Though this technology has desulfurizing function, but there is gas-liquid mass transfer exchange weak effect, ant-scaling plugging performance is poor, equipment volume is huge, cause desulfuration efficiency low because wall stream effect makes gas-liquid two-phase skewness easily be short-circuited, the problem that desulfurizing tower internal cause fume emission is unstable, pressure changes the desulfuration efficiency instability caused cannot be solved, in recent years, though these technology have improvement, all do not throw off original know-why, therefore technically there is no important breakthrough.
Though external desulfurization form has a lot, there is the problem that the national conditions of China's height dirt, high-sulfur fire coal are not exclusively adapted to, the problem of fume emission instability, governance efficiency instability can not be solved too.
Summary of the invention
The purpose of this utility model is a kind of coke oven discharge dirt governing system of design, the harmful smoke that fire grate of focusing goes out effectively is lowered the temperature, dedusting, denitration, desulfurization, except acid treatment, and reduce operating cost, there is structure simple, stable performance, is convenient to installation and maintenance and the effective advantage of pollution treatment.
For this reason, the utility model comprises percolation filter, water tank, drain sump, filter cream case and membrane pump, with enter upper end in flue that mouth communicates and be provided with the atomizer that a row sprays hydrogen liquid, enter the inside lower end of mouth phase through wash cigarette tower, the outlet flue washing cigarette tower communicates the interior upper end of fumes cleaning machine, the interior lower end of fumes cleaning machine communicates the interior upper end of gas cleaner, the gas outlet of gas cleaner is communicated with drain sump by 8-shaped tornadotron, the upper end of drain sump is smoke evacuation outlet, the top delivery port of percolation filter is communicated with the upper water inlet of fumes cleaning machine respectively by water inlet pipe and the lower water inlet of gas cleaner communicates, the bottom delivery port of percolation filter is communicated with upper end in filter cream case by membrane pump, the lower end of filter cream case exports upper end in the water tank that communicates, in water tank, lower end is communicated with the inner side edge bottom of percolation filter by membrane pump and pipeline, the alkali outlet adding alkali machine communicates with upper end in water tank, the delivery port of drain sump lower end and fumes cleaning machine lower end communicates with upper end in water tank, wherein,
Wash Yan Ta, for the pernicious gas in the coke oven row dust after cooling and dust are once got rid of, the lateral surface of tower body top to bottom is provided with overcoat, gap between overcoat and the tower body outer wall in corresponding portion forms the water jacket that upper and lower side and tower body outer wall seal, the upper end of water jacket communicates hot water outlet, the lower end of water jacket communicates cooling water inlet, the interior upper end of tower body is provided with dehydration plate, the ball curtain spray quinoline pipe of the distribution in M shape is provided with in the tower body of dehydration plate lower end, the every ball curtain spray quinoline Guan Shangcheng spacing distance be distributed in interval distance is provided with a point cigarette dish, every ball curtain spray quinoline pipe is densely covered with atomization spray orifice, tower body lower end is provided with sewage draining exit, the tower body of dehydration plate upper end communicates outlet flue,
Fumes cleaning machine, for carrying out secondary cleaning to the flue gas through washing the cleaning of cigarette tower, the mouth that enters of fumes cleaning machine communicates with the outlet flue washing cigarette tower, fumes cleaning machine enter in mouth to be provided with equal cigarette device, the interior upper end of fumes cleaning machine is provided with spray disk, the interior lower end of fumes cleaning machine is provided with lower spray disk, and lower spray disk is densely covered with the fog-spray nozzle that upwards sprays and the through water hole between adjacent fog-spray nozzle;
Gas cleaner, carry out three cleanings for the flue gas cleaned to fumes cleaning machine, gas cleaner is positioned at the lower end of fumes cleaning machine, and the interior lower end of fumes cleaning machine communicates the interior upper end of gas cleaner, is provided with by the gas washing rotating disk of driven by motor in fumes cleaning machine.
Described gas washing rotating disk is made up of chassis, pressed on ring dish and blade, and the lower center on chassis is driven by motor shaft, the upper periphery on chassis with oblique setting and each blade lower end be distributed in interval distance be connected, the upper end of each blade is connected with pressed on ring dish.The angle of described blade is 30 ~ 45 degree.The described outlet flue washing cigarette tower is provided with by the air exhauster of driven by motor.A point cigarette dish on described adjacent ball curtain spray quinoline pipe is staggered setting.Water in described water tank contains sodium carbonate, or NaOH.The described sewage draining exit washing Yan Ta lower end communicates with sedimentation basin.Hot water outlet and shower and the heating system of described water jacket upper end provide the pipeline of hot water to connect, and the cooling water inlet of water jacket lower end connects with the return pipe of running water pipe or heating system.The water that described ball curtain spray quinoline pipe is used contains ammoniacal liquor.
Said structure design reaches the purpose of this utility model.
The utility model can focus that the harmful smoke that fire grate goes out effectively is lowered the temperature, dedusting, denitration, desulfurization, except acid treatment, and reduce operating cost, has structure simple, stable performance, is convenient to installation and maintenance and the effective advantage of pollution treatment.Concrete advantage is:
1, can focus harmful smoke that fire grate goes out of the utility model carries out the flushing of three different liquids, efficiency of dust collection reaches 99%, desulfuration efficiency > 99%, denitration efficiency > 99%, deacidification rate reaches 98%, exhaust temperature is less than 40 DEG C, all meets or exceeds discharging standards.
2, the utility model pollution treatment effect stability, employing is mainly the method for medium with water, namely to cooling high-temperature fume, reduces again the wearing and tearing of equipment.As time goes on pollution treatment effect also can not reduce.
3, equipment of the present utility model install, transformation and easy to use, equipment volume of the present utility model is little, energy consumption is low, rotproofness is good, high temperature resistant, noise is little, long service life, small investment, the easy to use and high temperature that effectively can transform flue gas provide hot water for shower and heating.
Accompanying drawing explanation
Fig. 1 is general structure schematic diagram of the present utility model.
Fig. 2 is the structural representation washing cigarette tower of the present utility model.
Fig. 3 is the structural representation of fumes cleaning machine of the present utility model and gas cleaner.
Fig. 4 is the plan structure schematic diagram of gas washing rotating disk of the present utility model.
Specific embodiments
As shown in Figures 1 to 4, a kind of coke oven discharge dirt governing system, comprises percolation filter 12, water tank 24, drain sump 8, filter cream case 11 and membrane pump 13.Be provided with the upper end in flue 14 that mouth communicates of entering washing cigarette tower the atomizer 15 that a row sprays hydrogen liquid, enter the inside lower end of mouth phase through wash cigarette tower.The outlet flue 2 washing cigarette tower communicates the interior upper end of fumes cleaning machine 5.The interior lower end of fumes cleaning machine communicates the interior upper end of gas cleaner 21.The gas outlet of gas cleaner is communicated with drain sump 8 by 8-shaped tornadotron 22, and the upper end of drain sump is smoke evacuation outlet.The top delivery port of percolation filter is communicated with the upper water inlet 4 of fumes cleaning machine respectively by water inlet pipe 10 and the lower water inlet 19 of gas cleaner communicates.The bottom delivery port of percolation filter is communicated with upper end in filter cream case 11 by membrane pump 13, and the lower end of filter cream case exports upper end in the water tank that communicates.In water tank, lower end is communicated with the inner side edge bottom of percolation filter 12 by membrane pump 25 and pipeline.The alkali outlet adding alkali machine 26 communicates with upper end in water tank.The delivery port 23 of drain sump lower end and the delivery port 6 of fumes cleaning machine lower end are communicated with upper end in water tank by return pipe 9.Wherein:
As shown in Figure 1 to Figure 2, cigarette tower is washed for the pernicious gas in the coke oven row dust after cooling and dust once being got rid of.Be provided with the upper end in flue 14 that mouth communicates of entering washing cigarette tower the atomizer 15 that a row sprays hydrogen liquid, enter the inside lower end of mouth phase through wash cigarette tower.The lateral surface of tower body top to bottom is provided with overcoat 31, and the gap between overcoat and the tower body outer wall in corresponding portion forms the water jacket 32 that upper and lower side and tower body outer wall seal.The upper end of water jacket communicates hot water outlet 1, and the lower end of water jacket communicates cooling water inlet 18.Hot water outlet and shower and the heating system of described water jacket upper end provide the pipeline of hot water to connect, and the cooling water inlet of water jacket lower end connects with the return pipe of running water pipe or heating system.The interior upper end of tower body is provided with dehydration plate 27, be provided with the several ball curtain distributed in M shape communicated with water inlet pipe 29 in the tower body of dehydration plate lower end and spray quinoline pipe 30, namely water inlet pipe communicates one end of arm 28 of several distribution in M shape, and the other end of each arm sprays quinoline pipe with corresponding ball curtain and communicates.Water inlet pipe then communicates the water tank contained containing ammoniacal liquor.The every ball curtain spray quinoline Guan Shangcheng spacing distance be distributed in interval distance is provided with a point cigarette dish 33, and the described adjacent ball curtain point cigarette dish sprayed on quinoline pipe is staggered setting, mixes to impel aerosol.Every ball curtain spray quinoline pipe is densely covered with atomization spray orifice, respectively sprays the atomization spray orifice that quinoline pipe gathers during use and spray the atomized water and atomized water shoe lid tower intracorporeal space that contain certain density ammonia.Tower body lower end is provided with sewage draining exit 17.The tower body of dehydration plate upper end communicates outlet flue 2.The water that described ball curtain spray quinoline pipe is used contains certain density ammoniacal liquor.The described sewage draining exit washing Yan Ta lower end communicates with sedimentation basin.
The operation principle of washing cigarette tower is: the residue utilizing coke-oven plant self-produced or ammoniacal liquor inferior first carry out spray evaporation cooling to the high-temperature flue gas in flue, utilize the principle of semi-dry desulphurization, makes high-temperature flue-gas be down to about 120 DEG C from mean temperature 245 DEG C.Ammoniacal liquor evaporation gauze process in, the dirty beam molecules such as the ammonia in ammoniacal liquor and the sulfur dioxide in flue gas occurs chemistry reflect, generation sulfate of ammoniac, nitric acid ammonia and be deposited at the bottom of tower or from tower body lower end sewage draining exit discharge precipitate, sediment regularly removes recycling.Enter mixing containing certain density ammoniacal liquor atomization of the several ball curtain spray quinoline pipe ejection of flue gas through distributing in M shape of washing in cigarette tower on the other hand, and the wake turbulence effect of upper point cigarette dish, both the stirring promotions mixing to flue gas and water can be formed further, after making atomized water inhale dust in molten flue gas and harmful substance, also the sewage draining exit from tower body lower end discharges precipitation, and sediment regularly removes recycling.And through qi exhaustion water pond 27, flue gas being separated with water through first time again containing the humid flue gas that certain density ammoniacal liquor water is cleaned, flue gas then enters fumes cleaning machine along outlet flue.The sewage draining exit of water then from tower body lower end discharges precipitation, clean water ammonification recycling capable of circulation.The described outlet flue washing cigarette tower is provided with by the air exhauster of driven by motor.The utility model can flow with natural wind, and the air exhauster 34 driven by motor 35 also can be established in outlet flue to accelerate flow of flue gas.
Meanwhile, in the cold water in water jacket or backwater absorption tower wall, heat becomes hot water, and the hot water outlet of hot water from the upper end of water jacket is discharged as shower and heating system provide hot water.
As shown in Figure 3, fumes cleaning machine 5 is for carrying out secondary cleaning to the flue gas through washing the cleaning of cigarette tower.Fumes cleaning machine and gas cleaner are upper and lower integrative-structure, are supported by support 40.The mouth that enters of fumes cleaning machine communicates with the outlet flue 2 washing cigarette tower.Fumes cleaning machine enter in mouth to be provided with equal cigarette device 3, for being broken up by the flue gas flow equalizing entered in fumes cleaning machine.The interior upper end of fumes cleaning machine is provided with spray disk 36, and water inlet 4 is established in the upper end of upper spray disk, and upper water inlet is communicated with the top delivery port of percolation filter by water inlet pipe 10.
The interior lower end of fumes cleaning machine is provided with lower spray disk, and lower spray disk is densely covered with the fog-spray nozzle 38 that upwards sprays and the through water hole 37 between adjacent fog-spray nozzle.Lower spray disk is communicated with the top delivery port of percolation filter by the lower water inlet 19 of its side and water inlet pipe.
The operation principle of fumes cleaning machine is: containing sodium carbonate, or the water of NaOH collides with each other with the flue gas entered in fumes cleaning machine from equal cigarette device with relative ejection of fog-spray nozzle of gathering on lower spray disk from upper spray disk simultaneously, blending, be mixed into one, dust in sodium carbonate in water or NaOH and flue gas, acid substance, sulfur dioxide etc. pollute molecule and chemistry reflection occur, and a chemistry material is blended in water, part water flow to after water tank supplements sodium carbonate or NaOH from delivery port 6 and return pipe 9, enter percolation filter 12 through membrane pump 25 extraction again to filter, filtered water reenters water inlet pipe and does spray water, and filtrate is again after filter cream case 11 filters further, screening removes recycling, drainage reflux tank.Through the flue gas of fumes cleaning machine secondary cleaning and the water of another part, the water hole 37 then on lower spray disk enters in the gas washing rotating disk 39 of gas cleaner.
As shown in Figure 3 and Figure 4, gas cleaner carries out three cleanings for the flue gas cleaned to fumes cleaning machine.Gas cleaner is positioned at the lower end of fumes cleaning machine, and the interior lower end of fumes cleaning machine communicates the interior upper end of gas cleaner, is provided with the gas washing rotating disk 39 driven by sealed bearing 41 by motor 20 in fumes cleaning machine.
Described gas washing rotating disk is made up of chassis 42, pressed on ring dish 43 and blade 44.The lower center on chassis is driven by motor shaft, the upper periphery on chassis with oblique setting and each blade lower end be distributed in interval distance be connected, the upper end of each blade is connected with pressed on ring dish.The angle of described blade is 30 ~ 45 degree.Water in described water tank contains sodium carbonate, or NaOH.
The operation principle of gas cleaner is: through the flue gas of fumes cleaning machine secondary cleaning and the water of another part, the water hole 37 then on lower spray disk enters in the gas washing rotating disk 39 of gas cleaner, gas washing rotating disk High Rotation Speed, under the rotation forceful action of blade, flue gas with the collision can acute split containing alkali lye water, be polymerized, both produce neutralization reaction again, again complete primary purification process.Cigarette aqueous mixtures enters in drain sump 8 from gas outlet by 8-shaped tornadotron 22, and the water be separated through drain sump is from return pipe reflow tank, and the smoke evacuation outlet 7 from drain sump upper end of the flue gas of purification is discharged.
Obviously, the utility model using computer programs Monitoring and Controlling caustic dosage, spouting liquid and include ammonia, alkali equivalent, for neutralizing removal better with chemical analysis in flue gas.For conventional art, therefore be not repeated.
In a word, the utility model can focus that the harmful smoke that fire grate goes out effectively is lowered the temperature, dedusting, denitration, desulfurization, except acid treatment, and reduce operating cost, has structure simple, stable performance, is convenient to installation and maintenance and the effective advantage of pollution treatment.

Claims (9)

1. a coke oven discharge dirt governing system, comprise percolation filter, water tank, drain sump, filter cream case and membrane pump, it is characterized in that: with enter upper end in flue that mouth communicates and be provided with the atomizer that a row sprays hydrogen liquid, enter the inside lower end of mouth phase through wash cigarette tower, the outlet flue washing cigarette tower communicates the interior upper end of fumes cleaning machine, the interior lower end of fumes cleaning machine communicates the interior upper end of gas cleaner, the gas outlet of gas cleaner is communicated with drain sump by 8-shaped tornadotron, the upper end of drain sump is smoke evacuation outlet, the top delivery port of percolation filter is communicated with the upper water inlet of fumes cleaning machine respectively by water inlet pipe and the lower water inlet of gas cleaner communicates, the bottom delivery port of percolation filter is communicated with upper end in filter cream case by membrane pump, the lower end of filter cream case exports upper end in the water tank that communicates, in water tank, lower end is communicated with the inner side edge bottom of percolation filter by membrane pump and pipeline, the alkali outlet adding alkali machine communicates with upper end in water tank, the delivery port of drain sump lower end and fumes cleaning machine lower end communicates with upper end in water tank, wherein,
Wash Yan Ta, for the pernicious gas in the coke oven row dust after cooling and dust are once got rid of, the lateral surface of tower body top to bottom is provided with overcoat, gap between overcoat and the tower body outer wall in corresponding portion forms the water jacket that upper and lower side and tower body outer wall seal, the upper end of water jacket communicates hot water outlet, the lower end of water jacket communicates cooling water inlet, the interior upper end of tower body is provided with dehydration plate, the ball curtain spray quinoline pipe of the distribution in M shape is provided with in the tower body of dehydration plate lower end, the every ball curtain spray quinoline Guan Shangcheng spacing distance be distributed in interval distance is provided with a point cigarette dish, every ball curtain spray quinoline pipe is densely covered with atomization spray orifice, tower body lower end is provided with sewage draining exit, the tower body of dehydration plate upper end communicates outlet flue,
Fumes cleaning machine, for carrying out secondary cleaning to the flue gas through washing the cleaning of cigarette tower, the mouth that enters of fumes cleaning machine communicates with the outlet flue washing cigarette tower, fumes cleaning machine enter in mouth to be provided with equal cigarette device, the interior upper end of fumes cleaning machine is provided with spray disk, the interior lower end of fumes cleaning machine is provided with lower spray disk, and lower spray disk is densely covered with the fog-spray nozzle that upwards sprays and the through water hole between adjacent fog-spray nozzle;
Gas cleaner, carry out three cleanings for the flue gas cleaned to fumes cleaning machine, gas cleaner is positioned at the lower end of fumes cleaning machine, and the interior lower end of fumes cleaning machine communicates the interior upper end of gas cleaner, is provided with by the gas washing rotating disk of driven by motor in fumes cleaning machine.
2. by a kind of coke oven discharge dirt governing system according to claim 1, it is characterized in that: described gas washing rotating disk is made up of chassis, pressed on ring dish and blade, the lower center on chassis is driven by motor shaft, the upper periphery on chassis with oblique setting and each blade lower end be distributed in interval distance be connected, the upper end of each blade is connected with pressed on ring dish.
3., by a kind of coke oven discharge dirt governing system according to claim 2, it is characterized in that: the angle of described blade is 30 ~ 45 degree.
4., by a kind of coke oven discharge dirt governing system according to claim 1, it is characterized in that: the described outlet flue washing cigarette tower is provided with by the air exhauster of driven by motor.
5. by a kind of coke oven discharge dirt governing system according to claim 1, it is characterized in that: point cigarette dish on described adjacent ball curtain spray quinoline pipe is staggered setting.
6., by a kind of coke oven discharge dirt governing system according to claim 1, it is characterized in that: the water in described water tank contains sodium carbonate, or NaOH.
7., by a kind of coke oven discharge dirt governing system according to claim 1, it is characterized in that: the described sewage draining exit washing Yan Ta lower end communicates with sedimentation basin.
8. by a kind of coke oven discharge dirt governing system according to claim 1, it is characterized in that: hot water outlet and shower and the heating system of described water jacket upper end provide the pipeline of hot water to connect, and the cooling water inlet of water jacket lower end connects with the return pipe of running water pipe or heating system.
9. by a kind of coke oven discharge dirt governing system according to claim 1, it is characterized in that: the water that described ball curtain spray quinoline pipe is used contains ammoniacal liquor.
CN201521080609.0U 2015-12-24 2015-12-24 Coke oven discharges filth treatment system Withdrawn - After Issue CN205216563U (en)

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CN201521080609.0U CN205216563U (en) 2015-12-24 2015-12-24 Coke oven discharges filth treatment system

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105413433A (en) * 2015-12-24 2016-03-23 齐琏发 System for treating coke oven exhausted contaminants
CN108889098A (en) * 2018-07-11 2018-11-27 刘荣甫 Energy-efficient ammonia process technique is transformed into using gypsum desulfurizer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105413433A (en) * 2015-12-24 2016-03-23 齐琏发 System for treating coke oven exhausted contaminants
CN108889098A (en) * 2018-07-11 2018-11-27 刘荣甫 Energy-efficient ammonia process technique is transformed into using gypsum desulfurizer
CN108889098B (en) * 2018-07-11 2020-11-27 刘荣甫 Energy-saving ammonia process modified by gypsum-process desulfurization device

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AV01 Patent right actively abandoned
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Granted publication date: 20160511

Effective date of abandoning: 20171229