CN201125227Y

CN201125227Y - Coke oven coal charging and two-in-one earth-based station dust removing system when coke discharging

Info

Publication number: CN201125227Y
Application number: CNU2007200138318U
Authority: CN
Inventors: 刘家歧; 赵一娜
Original assignee: ANSHAN SANTAI METALLURGY CHEMICAL EQUIPMENT FACTORY
Current assignee: Anshan Santain Smelting Chemical Equipment Co., Ltd.
Priority date: 2007-08-16
Filing date: 2007-08-16
Publication date: 2008-10-01
Anticipated expiration: 2017-08-16

Abstract

The utility model relates to a two-in-one earth station dust-removal system in coal charging and coke discharging of coke oven. The dust-removal system includes a coke guide, a charging gas cleaning car, a dust-collecting main pipe, a preliminary dust remover, a hop-pocket dust remover, a fan, a motor and a chimney. The coke guide is set near coke discharging port of coke oven and has a dust collecting cover, the charging gas cleaning car is set on upper side of coke oven top and has a suction port on bottom. The coke guide and the charging gas cleaning car connect with the dust collecting main pipe through interface value, the dust collecting main pipe connects with the preliminary dust remover, hop-pocket dust remover, fan and motor in order. In dust removing system, smoke collected by the coke guide dust collecting cover and collected by the charging gas cleaning car in coal charging operation share a suit of fan, motor and chimney. The dust-removal system provided by the utility model has benefits such as small floor area, scanty invest, convenient to reconstruction, better dust removal effect, and can meet national discharge standard.

Description

Coke oven coal-charging and two-in-one earth station dust removing system when the discharging of the coke

Technical field

The utility model relates to the environmental protection dust-removal system of carrying out smoke and dust treatment in coke-oven plant's coke making process production process.

Background technology

At present, domestic coke-oven plant, coke making process production is very serious because of flue dust and other pollutent of coalingging and the operation of the discharging of the coke is discharged to the pollution that environment caused, and has caused the concern and the attention of all respects.The environmental protection situation of coalingging and the discharging of the coke of coke-oven plant roughly has following several situation:

1, amorphous pollutant emission; Be existing coke-oven plant to coaling and the operating process of the discharging of the coke in, do not have environmental practice and governing measure.

2, to coaling and the operating process of the discharging of the coke in the flue dust that produces collect and control, but invested or technical restriction, the flue dust of collecting has been carried out the dust removal process of modes such as wet scrubbing or one-level Venturi, because technology is unreasonable, the control of system is incomplete, plant efficiency is low, thereby pollutent and dust are still in the discharging that exceeds standard.

3, coke-oven plants quite a lot are for reducing investment outlay or reducing the power consumption expense, the flue dust of collecting in the time of will the discharging of the coke operation is sent in the existing smoke prevention and dust control truck system of coke oven, carry out wet processing, fume amount when the fume amount during owing to discharge of the coke is operated much larger than coalingging, thereby dust-removal system is not enough to the control of flue dust, causes leakage.And deliver to the flue dust of coal loading dedust system, be the discharging that exceeds standard because of efficiency of dust collection is not high in the same old way.

Though 4, the part coke-oven plant has also built dust-removal system and dust removal installation, because total system design and the unreasonable energy consumption of system that causes of type selecting are higher, for the consideration that reduces working cost, usage ratio of equipment is very low, even becomes a kind of ornaments.

5, conventional discharge of the coke, coaling bag-type dust removal system respectively by the control of dust main, give two independent systems of dedusting and bag-type dust station and form, thereby the whole dust-removal system floor space is big, investment is high, and for the coke oven of having gone into operation as the transformation of carrying out environment friendly system with to improve difficulty very big.

Summary of the invention

Be to solve the problem that prior art exists, the purpose of this utility model provides a kind of less investment, floor space is little, transformation is convenient, the coke oven coal-charging of good dedusting effect, environment protection standard and two-in-one earth station dust removing system when the discharging of the coke.

Coke oven coal-charging and when the discharging of the coke the technology contents of two-in-one earth station dust removing system be described below:

Coke oven coal-charging and two-in-one earth station dust removing system when the discharging of the coke, it is characterized in that, this system comprises coke guide, the smoke elimination car, the control of dust main, give fly-ash separator, sack cleaner, blower fan, motor and chimney, coke guide is arranged near the coke oven coke outlet, coke guide is provided with dust gathering arrester, the smoke elimination car is arranged on coke oven furnace roof top, smoke elimination car bottom is provided with suction inlet, coke guide is connected with the control of dust main by interface valve respectively with the smoke elimination car, the control of dust main successively with give fly-ash separator, sack cleaner, blower fan is connected with motor, blower fan links to each other with chimney, in dust-removal system, flue dust that the coke guide dust gathering arrester is collected and the flue dust of coalingging and collecting by the smoke elimination car when operating, a shared cover blower fan, motor, chimney.

Above the pusher side fire door of coke oven, range hood and pump orifice are set.

Compared with prior art, the beneficial effects of the utility model are:

Conventional discharge of the coke, coaling bag-type dust removal system by two independently the control of dust main give dedusting and bag-type dust station system forms, therefore the big investment of whole dust-removal system floor space is high, and very big as the transformation difficulty of carrying out bad insurance system for the coke oven of having gone into operation.

The utility model is in the discharging of the coke and coalingging process, a shared cover system carries out dedusting, be a shared cover control of dust main, give fly-ash separator, sack cleaner, blower fan, motor, chimney, existing dust-removal system is carried out two-in-one, utilize it to enter in the said system in the different time.Floor space is little like this, has saved investment, and it is convenient to transform, and good dedusting effect can reach discharging standards.

Description of drawings

Fig. 1 is the coke oven coal-charging and the floor plan synoptic diagram of two-in-one earth station dust removing system when the discharging of the coke.

Fig. 2 be coke oven coal-charging and when the discharging of the coke the transverse section of two-in-one earth station dust removing system arrange synoptic diagram.

Fig. 3 is the coke oven coal-charging and the FB(flow block) of two-in-one earth station dust removing system when the discharging of the coke.

1-motor 2-chimney 3-blower fan 4-sack cleaner 5-gives fly-ash separator 6-coke guide 7-control of dust main 8-coke quenching tower 9-1 ^#Coke oven 10-2 ^#Coke oven 11-smoke elimination car 12-dust gathering arrester 13-air suction opening 14-briquette 15-suction inlet 16-pump orifice 17-range hood

Embodiment

Coke oven coal-charging and two-in-one earth station dust removing system when the discharging of the coke, this system comprises coke guide 6, smoke elimination car 11, control of dust main 7, give fly-ash separator 5, sack cleaner 4, blower fan 3, motor 1 and chimney 2, coke guide 6 is arranged near the coke oven coke outlet, coke guide 6 is provided with dust gathering arrester 12, smoke elimination car 11 is arranged on coke oven furnace roof top, smoke elimination car 11 bottoms are provided with suction inlet 15, coke guide 6 is connected with control of dust main 7 by interface valve respectively with smoke elimination car 11, control of dust main 7 successively with give fly-ash separator 5, sack cleaner 4, blower fan 3 is connected with motor 1, and blower fan 3 links to each other with chimney 2.

See Fig. 1, Fig. 2, Fig. 3, coke oven coal-charging and when the discharging of the coke two-in-one earth station dust removing system comprise following plurality of processes:

1) discharge of the coke when operation, by coke guide 6 with dust gathering arrester 12, utilize the negative-pressure operation of system, flue dust collecting in the time of will the discharging of the coke, be sent in the control of dust main 7 that leads to ground station for dust removal by interface valve, flue dust passes through sack cleaner 4 again through giving fly-ash separator 5 earlier, enters atmosphere after the processing.

When 2) coalingging operation, the smoke elimination car 11 that utilizes furnace roof to be provided with, from air suction opening (hole of coalingging) 13 flue dust collectings of releasing out, by being burnt and purified in the combustion chamber, ooze the freezing air cooling again, by interface valve flue gas is sent in the control of dust main 7 that coke discharging and dedusting uses, arrives the sack cleaner 4 of ground station for dust removal again by giving fly-ash separator 5 earlier equally, enter atmosphere after the dust removal process.

3) above the pusher side fire door of coke oven, range hood 17 and pump orifice 16 are set, purpose is for coalingging when operation, the flue dust that slave wing furnace door leaks out is integrated into pump orifice earlier, because of the negative-pressure operation of system, send into by the pipeline that is connected with pump orifice in the control of dust main of furnace roof, by giving dedusting, through sack cleaner, enter atmosphere after the processing.

4) configuration suction inlet 15 in the top of the machine of furnace roof, burnt both sides air suction opening is connected with coke oven by jacking sleeve, disposes electro-magnet simultaneously and inhales the bell device.

Feature of the present utility model is: the used control of dust main of flue dust when the discharging of the coke and the flue dust of releasing out when coalingging, to give equipment such as dedusting, sack cleaner, blower fan, motor be shared a set of equipment, with the bag-type dust removal system that discharges of the coke, coalings of routine be by two independently the control of dust main, give dedusting, the bag-type dust earth station system is compared, have a lot of outstanding advantages, as less investment, floor space is little, advantages such as good dedusting effect.

Details are as follows for concrete scheme:

1) generally speaking, the configuration of coke oven is that two coke ovens are a stove group, as shown in Figure 1, and use a quench system, therefore discharge of the coke and the operation of coalingging is staggered in time, the flue dust that the dust gathering arrester of coke guide is collected and when coalingging operation, the flue dust of being collected by the smoke elimination car can be sent into same control of dust main system of the coke side furnace roof that is arranged at coke oven in the different time, so the utility model is referred to as two-in-one control of dust main system.

2) discharge of the coke and the flue dust of two the flue dust collecting systematic collections of coalingging all passes through and gives fly-ash separator, remove macrobead coke powder (having prevented that kindling material from entering next process) earlier, enter sack cleaner then, because the flue gas of two systems does not enter in the same sack cleaner at one time, so, the utility model shared cover of two flue dust collecting systems that will discharge of the coke and coaling gives dedusting, sack cleaner system, so the utility model is referred to as two-in-one ground station for dust removal.

Half of the fume amount of the nearly generation when operating of the discharging of the coke of the flue dust that produces when 3) coalingging operation, sack cleaner is by full load operation when the discharging of the coke, can operate by halfload when coalingging, half sack cleaner of use that can rotate of dust collection for charging like this, and discharge of the coke when operating, give spray material when adherent coke powder just becomes dust collection for charging on cloth bag, prevented to contain in the flue gas because of the operation of coalingging part and purified impurity sticky cloth bag such as halfway tar and result in blockage, this has just saved the indispensable spray equipment that gives in coal loading dedust system.

4) discharge of the coke and coaling two kinds of operations, the flue gas that produces is to enter a dedusting main, give in dedusting and the sack cleaner, therefore the equipment of system designs and type selecting by the exhaust gas volumn that the big system of the discharging of the coke of fume amount produces, when coalingging, equipment only is equivalent to halfload running, so blower fan need carry out speed governing operation, when not the discharging of the coke and coalingging operation, motor is with low-speed running, to save energy consumption.

5) consider from secure context, whole dust-removal system is provided with indispensable safe and reliable explosion trap, and unusual devices such as switch-valve, anti-asthma valve and sound damper, and corresponding blind controller system is finished the work and the operation of whole two-in-one ground station for dust removal system with control station independently.

Claims

1. coke oven coal-charging and two-in-one earth station dust removing system when the discharging of the coke, it is characterized in that, this system comprises coke guide, the smoke elimination car, the control of dust main, give fly-ash separator, sack cleaner, blower fan, motor and chimney, coke guide is arranged near the coke oven coke outlet, coke guide is provided with dust gathering arrester, the smoke elimination car is arranged on coke oven furnace roof top, smoke elimination car bottom is provided with suction inlet, coke guide is connected with the control of dust main by interface valve respectively with the smoke elimination car, the control of dust main successively with give fly-ash separator, sack cleaner, blower fan is connected with motor, blower fan links to each other with chimney, in dust-removal system, flue dust that the coke guide dust gathering arrester is collected and the flue dust of coalingging and collecting by the smoke elimination car when operating, a shared cover blower fan, motor, chimney.

2. coke oven coal-charging according to claim 1 and two-in-one earth station dust removing system when the discharging of the coke is characterized in that, above the pusher side fire door of coke oven, range hood and pump orifice are set.