CN209024566U - A kind of blast furnace roof presses coal-gas recovering equipment - Google Patents
A kind of blast furnace roof presses coal-gas recovering equipment Download PDFInfo
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- CN209024566U CN209024566U CN201821768526.4U CN201821768526U CN209024566U CN 209024566 U CN209024566 U CN 209024566U CN 201821768526 U CN201821768526 U CN 201821768526U CN 209024566 U CN209024566 U CN 209024566U
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Abstract
The utility model discloses a kind of blast furnace roofs to press coal-gas recovering equipment, including blast furnace roof feed pot (1), cyclone dust collectors (4), spray caustic scrubber (13) and dehydrater (14), blast furnace roof feed pot (1) is connect by gas pipeline with the entrance of cyclone dust collectors (4), the outlet of cyclone dust collectors (4) is connect by pressure coal-gas recovering pipeline with the pressure gas entry for spraying caustic scrubber (13), the moisture-laden gas outlet of spray caustic scrubber (13) is connect by gas conveying tube line with the entrance of dehydrater (14).The blast furnace roof presses the spray caustic scrubber in coal-gas recovering equipment to have cleaning dust, spray alkali except acid function, additional pressure coal gas dust removal equipment need not be increased, top gas and pressure coal gas is introduced directly into spray caustic scrubber, both it had been able to achieve the spray alkali deacidification processing of stock gas, has also been able to achieve the cleaning dust processing and recycling for pressing coal gas.
Description
Technical field
The utility model relates to steel smelting equipment fields, and particularly a kind of blast furnace roof presses coal-gas recovering equipment.
Background technique
Normally producing the coal gas discharged for a long time with blast furnace ironmaking includes two parts: from batch can when a part is top charging
The coal gas of discharge referred to as presses coal gas, and another part is that the coal gas that chemical reaction is discharged from furnace roof occurs for crude fuel in blast furnace, claims
For stock gas.When blast furnace produces because cause specific interrupts, is out-of-blast, the coal gas of furnace roof discharge is known as big emission coal gas.
Furnace top even pressure coal gas necessary to blast fumance be all before each charging by cyclone dust collectors and muffler after
It is diffused into atmosphere and (idle discharge is put 300 times or so daily), pressure coal gas is containing a large amount of CO, CO2With dust it is toxic, can
Combustion things mixed gas, the amount of diffusin of pressure coal gas are 6-8Nm3/ ton iron, dustiness are more than 10g/Nm3, China produces molten iron every year
About 700,000,000 tons are produced, is up to 5,500,000,000 m via gas volume of the blast furnace top pressure-equalizing bleeding equipment exhausting into atmosphere3/ year, blast furnace gas
Unit price presses 0.11 yuan/Nm3It calculates, economic loss caused by this part coal gas is about 600,000,000 yuan/year, and the Dust Capacity of discharge reaches 5.5
Ten thousand tons/year.The pressure coal gas of blast furnace ironmaking production process is directly discharged into atmosphere, not only causes air environmental pollution, while also unrestrained
The energy is taken.
There are many technologies that the recycling for pressing blast furnace roof coal gas may be implemented both at home and abroad, some has been achieved for good
Good effect, such as Chinese patent CN102031321A, April 27 2011 publication date, " blast furnace roof presses coal gas to disclosed one kind
Recovery method and recyclable device ".But these technologies require additionally to increase on the basis of original blast furnace system it is dedicated
Coal gas dust removal equipment is pressed, realizes and is recycled again to after the dedusting for pressing coal gas.It is enterprising in original place for most of needs
For the blast furnace system of row transformation, the occupied area of transformation process and additional equipment investment are the major issues being hard to avoid.
Many iron and steel enterprises are to reduce coke ratio blowing bituminous coal or anthracite to some extent, and some iron and steel enterprises are using sprinkling
The imported raw material mine of seawater is crossed, some iron and steel enterprises are to improve sinter strength to use the (CaCl of auxiliary agent containing chlorine2Deng), due to above
A variety of causes contains a large amount of acid medium (chloride ions in the stock gas that domestic many iron and steel enterprises generate in process of production
And sulfate ion).
With the enlargement of blast furnace and the raising of furnace top pressure, blast furnace gas purification method is developed from wet type to dry type, most
" blast furnace ironmaking engineering design code " (GB50427-2015) of new edition clearly recommend " blast furnace gas purification design preferably use dry method
Bag-type dusting technique ", therefore, the country generally use the purification that dry bag-type dust remover completes stock gas.Dry dust removal cannot
The acid medium in stock gas is purified, these acid mediums form strongly acidic solution after meeting water, cause seriously to gas piping
Corrosion." blast furnace ironmaking engineering design code " (GB50427-2015) recommends " in the corrosive substances content such as purified gas chloride ion
When higher, into full factory's gaspipe network before be preferably arranged lye spray column etc. control coal gas in chloride ion content facility ".For this
Kind situation, domestic many iron and steel enterprises are while application coal gas full dry cloth-bag dusting technology, using spray washing tower (for removing CO2) as stock gas
Dechlorination device, such as Chinese patent CN201864738U, June 15 2011 publication date, disclosed one kind " blast furnace coal gas blowout
Alkali dechlorination device ".
Blast fumance requires to solve the corrosion problems of stock gas in technique, requires to solve to press coal gas in environmental protection
Dedusting and recycling problem.It is all straight by being analyzed above it is found that the prior art is for the not no good processing method of big emission coal gas
It connects and idle discharge is put；Coal gas is pressed for blast furnace roof, although many recovery methods have been provided in the prior art, is required
Additionally increase the dedicated important difficulty pressed coal gas dust removal equipment, be faced with that occupied area and extras are invested in transformation process
Topic.As the spray washing tower (for removing CO2) for eliminating acid medium in coal gas, only there is the simple function of spray alkali deacidification.
Utility model content
In order to complete the dedusting deacidification to blast furnace gas.The utility model provides a kind of blast furnace roof and presses coal-gas recovering
Equipment, the blast furnace roof press the spray caustic scrubber in coal-gas recovering equipment to have cleaning dust, spray alkali except acid function, it is not necessary to increase
Add additional pressure coal gas dust removal equipment, top gas and pressure coal gas is introduced directly into spray caustic scrubber, is both able to achieve
The spray alkali deacidification of stock gas is handled, and is also able to achieve the cleaning dust processing and recycling for pressing coal gas.
The utility model solves that technical application used by its technical problem is novel to be: a kind of blast furnace roof presses coal gas to return
Receiving unit, including blast furnace roof feed pot, cyclone dust collectors, spray caustic scrubber and dehydrater, blast furnace roof feed pot pass through coal
The outlet of the connection of the entrance of letter shoot road and cyclone dust collectors, cyclone dust collectors passes through pressure coal-gas recovering pipeline and spray alkali cleaning
The pressure gas entry connection for washing tower, the moisture-laden gas outlet for spraying caustic scrubber pass through the entrance of gas conveying tube line and dehydrater
Connection.
Spray caustic scrubber in containing set gradually from bottom to top air-flow uniform device, lye spray equipment, demister, on
Portion's spray equipment and de-watering apparatus, along the vertical direction, the air-flow uniform device contain at least one layer of gas grid, the lye
Spray equipment contains at least one lye spraying layer.
Spray caustic scrubber is upright tubular structure, a lye spraying layer contain along spray caustic scrubber it is circumferential uniformly between
Every more root long spray guns of arrangement and short spray gun, every root long spray gun and short spray gun being arranged radially along spray caustic scrubber, every root long
High-pressure atomization spray head is equipped on spray gun and short spray gun.
The lye spray equipment contains multiple lye spraying layers, in two adjacent lye spraying layers, a lye
The injection direction of high-pressure atomization spray head in spraying layer is whole upward, the spray of the high-pressure atomization spray head in another lye spraying layer
It is whole downward to penetrate direction.
Lye spray equipment lye spraying layer containing there are four, four lye spraying layers are according to order from bottom to top
It is followed successively by the first lye spraying layer, the second lye spraying layer, third lye spraying layer and the 4th lye spraying layer.
All upward, second lye sprays the injection direction of high-pressure atomization spray head in the first lye spraying layer
The injection direction of high-pressure atomization spray head in layer is whole downward, the injection of the high-pressure atomization spray head in the third lye spraying layer
All upward, the injection direction of the high-pressure atomization spray head in the first lye spraying layer is whole downward in direction.
It can be filler water removal dress to the nozzle of demister injection water, de-watering apparatus that top spray equipment, which contains multiple,
It sets, de-watering apparatus is located at the top of spray caustic scrubber, and spray caustic scrubber also contains emission coal gas outlet, the emission coal gas outlet
The top of spray caustic scrubber is respectively positioned on moisture-laden gas outlet, the emission coal gas outlet is externally connected with diffusion valve.
The bottom for spraying caustic scrubber is equipped with sewage draining exit, and the lower section outside the sewage draining exit is equipped with sewage-treatment plant, sprays neutralizing treatment
Tower also contains stock gas entrance, and the stock gas entrance for spraying caustic scrubber is externally connected with stock gas supply line, the furnace roof
Gas supply pipeline is equipped with stock gas shut-off valve.
Described press is provided with thermometer, flowmeter, pressure gauge and presses coal gas recovery valve, whirlwind on coal-gas recovering pipeline
The outlet of deduster is connected with muffler and a balanced pressure system, the gas pipeline in parallel and is connected with concatenated nitrogen
The outlet of tank and secondary balanced pressure system, dehydrater is connect with clean coal gas pipe network.
The beneficial effects of the utility model are:
1, simplify and press the process flow of coal-gas recovering, reduce occupied area.
2, spray caustic scrubber structure is simple, cheap, maintenance cost is low.
3, spray caustic scrubber movable member is few, is not susceptible to failure, and operating rate is high.
4, the spray alkali of stock gas had not only been able to achieve except acid function, but also was able to achieve the cleaning dust function of pressing coal gas.
5, pressure coal gas detects pressure, temperature and the flow of pressure coal gas and is timely fed back to before entering spray caustic scrubber
Blast furnace central control system can optimize blast furnace operating, promote smooth operation of furnace.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical
Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.
Fig. 1 is the structural schematic diagram that blast furnace roof described in the utility model presses coal-gas recovering equipment.
Fig. 2 is the structural schematic diagram of spray caustic scrubber described in the utility model.
Fig. 3 is the structural schematic diagram of a lye spraying layer.
1, blast furnace roof feed pot；2, secondary equalizing valve；3, nitrogen gas tank；4, cyclone dust collectors；5, an equalizing valve；6, disappear
Sound device；7, pressure equalizing blow off valve；8, thermometer；9, flowmeter；10, pressure gauge；11, coal gas recovery valve is pressed；12, diffusion valve；13,
Spray caustic scrubber；14, dehydrater；15, check-valves；16, clean coal gas pipe network；17, stock gas shut-off valve；18, sewage treatment fills
It sets；19, a balanced pressure system；20, secondary balanced pressure system；
21, de-watering apparatus；22, spray equipment；23, demister；24, high-pressure atomization spray head；25, gas grid；26, lye
Spraying layer；27, long spray gun；28, short spray gun.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
A kind of blast furnace roof presses coal-gas recovering equipment, including blast furnace roof feed pot 1, cyclone dust collectors 4, spray neutralizing treatment
Tower 13 and dehydrater 14, blast furnace roof feed pot 1 are connect by gas pipeline with the entrance of cyclone dust collectors 4, and whirlwind removes
The outlet of dirt device 4 is connect by pressure coal-gas recovering pipeline with the pressure gas entry for spraying caustic scrubber 13, and caustic scrubber 13 is sprayed
Moisture-laden gas outlet connect with the entrance of dehydrater 14 by gas conveying tube line, as shown in Figure 1.
In the present embodiment, it is sprayed in spray caustic scrubber 13 containing air-flow uniform device, the lye set gradually from bottom to top
Shower device, demister 23, top spray equipment 22 and de-watering apparatus 21, along the vertical direction, the air-flow uniform device contain to
Few one layer of gas grid 25, the lye spray equipment contain at least one lye spraying layer 26, as shown in Figure 2.
In the present embodiment, the pressure gas entry for spraying caustic scrubber 13 is located at the lower part of spray caustic scrubber 13, the gas
Stream uniform device is located at the top for pressing gas entry, and the air-flow uniform device contains three layers of gas grid 25, adjacent
Be staggered the angle of setting between two layers of gas grid 25, so that the blast furnace gas entered in tower be made to be evenly distributed in entire tower
On cross section.
In the present embodiment, spray caustic scrubber 13 is in upright tubular structure, and lye spraying layer 26 contains along spray neutralizing treatment
The multiple long spray guns 27 and short spray gun 28 of the circumferential uniform intervals arrangement of tower 13, long spray gun 27 intersect in spray caustic scrubber 13
Heart line position, long spray gun 27 and short spray gun 28 are column structure, and the length of long spray gun 27 is greater than the length of short spray gun 28, long spray
Rifle 27 and being arranged radially along spray caustic scrubber 13 of short spray gun 28, i.e., the length direction of long spray gun 27 and the length of short spray gun 28
Direction being arranged radially along spray caustic scrubber 13, is equipped with multiple high-pressure atomization spray heads 24 on long spray gun 27 and short spray gun 28,
As shown in Figure 3.
In the present embodiment, the lye spray equipment contains multiple lye spraying layers spaced along the vertical direction
26, in two adjacent lye spraying layers 26, the injection direction of the high-pressure atomization spray head 24 in a lye spraying layer 26 is complete
Upward, the injection direction of the high-pressure atomization spray head 24 of another lye spraying layer 26 is whole downward in portion.For example, the lye spray
Device lye spraying layer 26 containing there are four, as shown in Fig. 2, four lye spraying layers 26 are followed successively by according to order from bottom to top
First lye spraying layer, the second lye spraying layer, third lye spraying layer and the 4th lye spraying layer.
The injection direction of high-pressure atomization spray head 24 in the first lye spraying layer is whole upward, the second lye spraying layer
In high-pressure atomization spray head 24 injection direction all downward, the injection of the high-pressure atomization spray head 24 in the third lye spraying layer
All upward, the injection direction of the high-pressure atomization spray head 24 in the first lye spraying layer is whole downward in direction.Spray caustic scrubber
13 bottom is equipped with sewage draining exit, and there is sewage-treatment plant 18 in the lower section outside the sewage draining exit.Blast furnace roof presses coal-gas recovering equipment
The dust-laden sewage generated after gas treatment obtains sludge and Ke Xunhuanliyong middle water after the sewage-treatment plant 18 processing.
According to process requirements, multiple lye spraying layers 26 and its subsidiary high-pressure atomization spray head are arranged on different height
24.Lye forms spray pattern inside spray caustic scrubber 13 after the ejection of high-pressure atomization spray head 24, and fogged lye is uniformly covered with
Spray the inner space of caustic scrubber 13.High-pressure atomization spray head 24 sprays the lye of high-pressure atomization state, realizes the dechlorination to coal gas
Processing.
Acid dust-laden blast furnace gas enters spray caustic scrubber 13 from the gas entry of the lower side of spray caustic scrubber 13,
Under the action of fogged lye, deacidification, dust removal process are completed:
1, spray alkali deacidification processing: the acid medium being covered in the fogged lye and coal gas of spray 13 inner space of caustic scrubber fills
Reaction is divided to eliminate gas corrosion.
2, cleaning dust is handled: due to inertial collision, interception and the cohesion between fogged lye and gas dust, compared with
The dust of bulky grain relies on gravitational settling with atomization washing, drains together with cleaning solution, into the row of spray 13 bottom of caustic scrubber
Sewage-treatment plant 18 outside dirty mouth.It can be followed after the processing of sewage-treatment plant 18 of the dust-laden sewage through spraying 13 bottom of caustic scrubber
Ring utilizes.
In the present embodiment, top spray equipment 22 can be removed water containing multiple to the nozzle of 23 injection water of demister
Device 21 is filler de-watering apparatus, and de-watering apparatus 21 is located at the top of spray caustic scrubber 13.Silk screen foam removal can be selected in demister 23
Device (or the other types such as deflector-type separator high-efficiency foam remover), demister 23 is arranged in the upper space of high-pressure atomization spray head 24.
The dust of smaller particle and the lye of spray pattern form mist, and the coal gas with mist rises through demister with certain speed
23, demister 23 completes the processing to dust particles smaller in coal gas, obtains aqueous purified gas.Top is set above demister 23
Spray equipment 22 is periodically sprayed demister 23 by top spray equipment 22 with high pressure water, avoids demister 23
It is blocked after long-time service.Fogged lye and demister 23 of the acid dust-laden blast furnace gas by the ejection of high-pressure atomization spray head 24
Effect, the available biggish coal gas of water content.
In the present embodiment, the top for spraying caustic scrubber 13 is set there are two gas vent, and described two gas vents are distinguished
For moisture-laden gas outlet and emission coal gas outlet, emission coal gas outlet is externally connected with diffusion valve 12, and moisture-laden gas outlet is outer
It is connected with dehydrater 14, purified gas check-valves 15 and clean coal gas pipe network 16 in turn, as shown in Figure 1.
(the filler water removal of de-watering apparatus 21 is arranged close at spray 13 top exit of caustic scrubber for the top of top spray equipment 22
Device).The inner stuffing of filler de-watering apparatus can be selected aluminum alloy material filler for flower ring (stainless steel filler for flower ring or other
Type filler).When moisture-laden gas passes through de-watering apparatus 21, the small water droplet in coal gas pools big water droplet simultaneously under the action of filler
Preliminary water removal is realized under the effect of gravity.
Baffle-type dehydrater (or the other types efficient water-removing such as cyclone type dehydrater device) can be selected in dehydrater 14.Tentatively remove
Moisture-laden gas after water exports discharge from the moisture-laden gas at 13 top of spray caustic scrubber, sets into spray 13 top outer of caustic scrubber
The dehydrater 14 set, that completes moisture-laden gas removes water process, finally obtains the qualified coal gas for meeting user's requirement, stops through purified gas
It returns valve 15 and enters clean coal gas pipe network 16 for users to use.
The top exit for spraying caustic scrubber 13 is equipped with diffusion valve 12, which has shut-off valve and safety valve simultaneously
Effect: when spray 13 internal pressure of caustic scrubber is normal, diffusion valve 12 is in close state；When pressure exceeds setting value, diffusion valve
12 automatically open reduction internal pressure.
The spray caustic scrubber 13 can handle crude fuel in blast furnace respectively and chemical reaction occurs from furnace roof according to process requirements
The pressure coal gas being discharged when the stock gas of discharge and top charging from batch can also handle stock gas simultaneously and press coal
Gas.Caustic scrubber 13 is sprayed according to process requirements, can handle big emission coal gas when blast furnace staying.Gas treatment ingredient meets back
When receiving desired stock gas and pressure coal gas, the check-valves 15 of spray 13 top exit of caustic scrubber is opened, diffusion valve 12 is closed,
Treated stock gas and pressure coal gas can be recycled normally into clean coal gas pipe network 16.Gas treatment ingredient is not met back
When receiving desired big emission coal gas, the check-valves 15 of spray 13 top exit of caustic scrubber is closed, opens diffusion valve 12, by removing
Meet the coal gas diffusion of emission request into air after dirt deacidification processing.
In the present embodiment, spray caustic scrubber 13 also contains stock gas entrance, which is located at spray alkali cleaning
The lower part of tower 13 is washed, the stock gas entrance of spray caustic scrubber 13 is externally connected with stock gas supply line, which supplies
Pipeline is answered to be equipped with stock gas shut-off valve 17.Described press on coal-gas recovering pipeline is provided with thermometer 8, flowmeter 9, pressure
Meter 10 and pressure coal gas recovery valve 11, the outlet of cyclone dust collectors 4 are connected with muffler 6 and a balanced pressure system 19 in parallel,
The gas pipeline is connected with concatenated nitrogen gas tank 3 and secondary balanced pressure system 20, as shown in Figure 1.
In the present embodiment, the diameter of caustic scrubber 13 and the mean flow rate highly according to blast furnace gas in tower are sprayed come really
It is fixed.The utility model proposes blast furnace gas Integrated Processing Unit by detection blast furnace gas inlet gas pressure, flow velocity
And flow, the amount of water sprayed of high-pressure atomization spray head 24 is automatically adjusted, the acid dust-laden coal gas in 13 inside of spray caustic scrubber and atomization are improved
The neutralization reaction of lye and dust removing effects.
The efficiency of dust collection of spray caustic scrubber 13 described in the utility model is higher, can remove the powder that partial size is 0.1-20 microns
Dirt, treated, and dust content of gas is less than 5mg/m3.Aqueous purified gas machine after filler de-watering apparatus 21 and dehydrater 14 are handled
Tool water content is less than 7g/m3.Through the utility model proposes the blast furnace roof press coal-gas recovering equipment treated furnace roof
Coal gas and pressure coal gas meet recycling and require.
Gas grid 25 described in the utility model, demister 23, top spray equipment 22 and de-watering apparatus 21
To use existing commercial product.Thus, the utility model proposes spray caustic scrubber 13 have it is simple, cheap, maintenance at
The advantages that this is low, movable member is few, is not susceptible to failure, and operating rate is high, it is possible to reduce energy-saving and emission-reduction and money are realized in air pollution
Source recycles.
The course of work that blast furnace roof described in the utility model presses coal-gas recovering equipment is described below.
Enter after batch can charging schedule in shaft furnace charging system, opens and press coal gas recovery valve 11 and clean coal gas pipe network
Check-valves 15, pressure coal gas from blast furnace roof feed pot 1 discharge after enter cyclone dust collectors 4 carry out rough dedusting, after rough dedusting
Coal gas enter it is described press coal-gas recovering pipeline.Press coal-gas recovering pipeline on installation measurement press gas temperature, flow and
Thermometer 8, flowmeter 9, the pressure gauge 10 of pressure, detected value are timely fed back to blast furnace central control system, and optimization blast furnace operating promotees
Into smooth operation of furnace.
Pressure coal gas finally leads to the spray caustic scrubber with deacidification, dedusting function after pressing coal gas recovery valve 11
13；Stock gas enters spray caustic scrubber 13 through stock gas shut-off valve 17.According to process requirements, pressure coal can be opened respectively
Gas recovery valve 11 or stock gas shut-off valve 17 handle stock gas respectively and press coal gas；Pressure coal can also be opened simultaneously
Gas recovery valve 11 or stock gas shut-off valve 17, while handling stock gas and pressing coal gas.
The sewage-treatment plant 18 that dust-laden sewage is sprayed caustic scrubber bottom obtains sludge and middle water after handling, and middle water can follow
Ring utilizes；Aqueous purified gas, which enters after dehydrater 14 is handled, is directly entered clean coal gas pipe network 16 through check-valves 15.
It sprays and diffusion valve 12 is set at the top of caustic scrubber 13.When spray 13 internal pressure of caustic scrubber is normal, diffusion valve 12 is in
Closed state；When pressure exceeds setting value, diffusion valve 12 automatically opens reduction internal pressure.
The above, only specific embodiment of the utility model cannot limit the range that utility model is implemented, institute with it
With the displacement of its equivalent assemblies, or according to equivalent variations made by the utility model patent protection scope and modification, should all still fall within
The scope that this patent is covered.In addition, between technical characteristic and technical characteristic in the utility model, technical characteristic and technical application
Between novel, technical application it is novel it is novel with technical application between use can be freely combined.
Claims (9)
1. a kind of blast furnace roof presses coal-gas recovering equipment, which is characterized in that the blast furnace roof presses coal-gas recovering equipment packet
Include blast furnace roof feed pot (1), cyclone dust collectors (4), spray caustic scrubber (13) and dehydrater (14), blast furnace roof feed pot
(1) it is connect by gas pipeline with the entrance of cyclone dust collectors (4), the outlet of cyclone dust collectors (4) is by pressing coal gas
Recovery channel is connect with the pressure gas entry of spray caustic scrubber (13), and the moisture-laden gas outlet of spray caustic scrubber (13) passes through coal
Letter shoot line is connect with the entrance of dehydrater (14).
2. blast furnace roof according to claim 1 presses coal-gas recovering equipment, which is characterized in that in spray caustic scrubber (13)
Containing set gradually from bottom to top air-flow uniform device, lye spray equipment, demister (23), top spray equipment (22) and
De-watering apparatus (21), along the vertical direction, the air-flow uniform device contain at least one layer of gas grid (25), the lye spray
Device contains at least one lye spraying layer (26).
3. blast furnace roof according to claim 2 presses coal-gas recovering equipment, which is characterized in that spraying caustic scrubber (13) is
Upright tubular structure, a lye spraying layer (26) contain more of the circumferential uniform intervals arrangement along spray caustic scrubber (13)
The radial direction of long spray gun (27) and short spray gun (28), every root long spray gun (27) and short spray gun (28) along spray caustic scrubber (13) is set
It sets, is equipped with high-pressure atomization spray head (24) on every root long spray gun (27) and short spray gun (28).
4. blast furnace roof according to claim 3 presses coal-gas recovering equipment, which is characterized in that the lye spray equipment
Height containing multiple lye spraying layers (26), in two adjacent lye spraying layers (26), in a lye spraying layer (26)
Press the injection direction of atomizer (24) whole upward, the spray of the high-pressure atomization spray head (24) in another lye spraying layer (26)
It is whole downward to penetrate direction.
5. blast furnace roof according to claim 4 presses coal-gas recovering equipment, which is characterized in that the lye spray equipment
Containing there are four lye spraying layer (26), which is followed successively by the first lye according to order from bottom to top and sprays
Drenching layer, the second lye spraying layer, third lye spraying layer and the 4th lye spraying layer.
6. blast furnace roof according to claim 5 presses coal-gas recovering equipment, which is characterized in that the first lye spray
The injection direction of high-pressure atomization spray head (24) in layer is whole upward, the high-pressure atomization spray head in the second lye spraying layer
(24) injection direction is whole downward, the injection direction whole court of the high-pressure atomization spray head (24) in the third lye spraying layer
On, the injection direction of the high-pressure atomization spray head (24) in the first lye spraying layer is whole downward.
7. blast furnace roof according to claim 2 presses coal-gas recovering equipment, which is characterized in that top spray equipment (22)
Containing it is multiple can be to the nozzle of demister (23) injection water, de-watering apparatus (21) is filler de-watering apparatus, de-watering apparatus
(21) it is located at the top of spray caustic scrubber (13), spray caustic scrubber (13) is also exported containing emission coal gas, and the emission coal gas goes out
Mouth and moisture-laden gas outlet are respectively positioned on the top of spray caustic scrubber (13), and the emission coal gas outlet is externally connected with diffusion valve
(12)。
8. blast furnace roof according to claim 1 presses coal-gas recovering equipment, which is characterized in that spray caustic scrubber (13)
Bottom is equipped with sewage draining exit, and the lower section outside the sewage draining exit is equipped with sewage-treatment plant (18), and spray caustic scrubber (13) also contains furnace roof
The stock gas entrance of gas entry, spray caustic scrubber (13) is externally connected with stock gas supply line, stock gas supply
Pipeline is equipped with stock gas shut-off valve (17).
9. blast furnace roof according to claim 1 presses coal-gas recovering equipment, which is characterized in that described to press coal-gas recovering
It is provided with thermometer (8), flowmeter (9), pressure gauge (10) on pipeline and presses coal gas recovery valve (11), cyclone dust collectors (4)
Outlet be connected with muffler (6) He Yici balanced pressure system (19) in parallel, the gas pipeline is connected with concatenated nitrogen
The outlet of gas tank (3) and secondary balanced pressure system (20), dehydrater (14) is connect with clean coal gas pipe network (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821768526.4U CN209024566U (en) | 2018-10-30 | 2018-10-30 | A kind of blast furnace roof presses coal-gas recovering equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821768526.4U CN209024566U (en) | 2018-10-30 | 2018-10-30 | A kind of blast furnace roof presses coal-gas recovering equipment |
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| Publication Number | Publication Date |
|---|---|
| CN209024566U true CN209024566U (en) | 2019-06-25 |
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ID=66908566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821768526.4U Active CN209024566U (en) | 2018-10-30 | 2018-10-30 | A kind of blast furnace roof presses coal-gas recovering equipment |
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| CN (1) | CN209024566U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109112241A (en) * | 2018-10-30 | 2019-01-01 | 中冶京诚工程技术有限公司 | A kind of blast furnace roof presses coal-gas recovering equipment |
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2018
- 2018-10-30 CN CN201821768526.4U patent/CN209024566U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109112241A (en) * | 2018-10-30 | 2019-01-01 | 中冶京诚工程技术有限公司 | A kind of blast furnace roof presses coal-gas recovering equipment |
| CN109112241B (en) * | 2018-10-30 | 2023-09-19 | 中冶京诚工程技术有限公司 | Blast furnace top pressure equalizing gas recovery equipment |
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