CN208742195U - A kind of dry-method dust-removal device for the aqueous flue dust of steel slag - Google Patents
A kind of dry-method dust-removal device for the aqueous flue dust of steel slag Download PDFInfo
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Abstract
A kind of dry-method dust-removal device for the aqueous flue dust of steel slag, belongs to smoke and dust treatment technical field.It specifically includes: flue gas dust collecting system is formed by smoke collecting cover, flue, gas fume valve, wet process pre-duster, solution dehydrates device, flue gas bypass pipe, nonaqueous dust cleaner, dedusting fan, chimney；Solution regeneration cycle is formed by solution dehydrates device, weak solution pipeline, solution regenerator, concentrated solution pipeline and uses system；Water system is formed by water inlet manifold, water inlet pipe, water inlet pipe valve；Sewage recovering system is formed by overflow pipe, blowdown valve, sewage pipe, solution regenerator branch drain, water seal, main sewer；Dewatering is combined using the pre- dedusting of water spray wet process and solution dehydrates device, realize the dry dedusting technology of aqueous flue dust, advantage is, reduce sewage disposal system, reduces construction investment, weak solution is regenerated using regenerator, realize the recycling of solution, vapor can also be recycled, realize that water resource recycles, reduce environmental pollution.
Description
Technical field
The utility model belongs to smoke and dust treatment technical field, in particular, provides a kind of dry method for the aqueous flue dust of steel slag
Dust-extraction unit.
Background technique
The current STEELMAKING PRODUCTION steel slag in China generallys use the techniques such as hot application, slag stewing, generates a large amount of dust-laden vapor, this portion
Dividing each enterprise of dust-laden vapor is essentially all uncontrollable discharge, and the especially trans-regional fog of north of china in winter slag diffuses, and seriously affects
Atmospheric environment.The vapor corrosion steel construction diffused simultaneously, influences the operation of overhead traveling crane driver, there are security risks.
State Ministry of Environmental Protection in 2017 issues for " steel industry atmosphere pollutants emission standards " (GB 28664-2012)
Standard modification list (exposure draft), it is contemplated that this time modification will be implemented in June, 2018, wherein being directed in STEELMAKING PRODUCTION operation
Dust uncontrollable discharge be made that stringent regulation, smoke dust discharge concentration generally requirement≤20mg/Nm3.In terms of present circumstances,
Administering this partially aqueous flue dust, there are certain technical problems.
Domestic across the flue gas major part of steelmaking slag causes seriously to pollute also in uncontrollable discharge to environment at present；Have one
Some organized control emission measures have been done by a little big steel mills, state-owned enterprise, and technical solution is controlled using wet dedusting technical thought
There are mainly two types of reason modes: after collecting one is humid flue gas by the way of direct high altitude discharge, system is simple, but uses effect
Fruit is bad, and particulate matter not any processing to the greatest extent can not meet environmental requirement；Another kind is using washing tower, by washing by spraying
The mode washed handles the dust in flue gas, and such mode has use in Baosteel, Zhanjiang, green steel etc., but discharge index is difficult to
Meet 20mg/Nm3Requirement, fail to find the discharge index data record that environmental protection administration provides so far.Tang's second phase in Shoudu Iron and Steel Co capital
The aqueous smoke and dust treatment of slag produced from steel-smelting uses wet electric dust-removing technology for the first time, and currently in implementation, there are systems for the technical solution
Complicated, primary investment is high, water consumption is big, increases the defects of sewage treatment difficulty, and discharge index is also up for further verifying.
In conclusion problem of the existing technology is: conventional wet lay dedusting technology is unable to satisfy new dust emission and wants
It asks, there are system complex, primary investment height, water consumption for wet electric dust-removing technology greatly, increases the defects of sewage treatment difficulty.
Summary of the invention
The purpose of this utility model is designed to provide a kind of for making steel the dry-method dust-removal device of the aqueous flue dust of slag stewing；Solution
Conventional wet lay dust pelletizing system of having determined dust emission can not be up to standard problem, reduce sewage disposal system, reduce construction investment, together
When vapor can also be recycled, realize the recycling of water resource, reduce environmental pollution.
The technical solution of the utility model is: the aqueous flue dust that steel slag generates during slag stewing uses smoke catching
After cover trapping, the pre- dedusting of water spray wet process is first passed through, then be dehydrated to humid flue gas with solution dehydrates device, reduced in flue gas
Moisture content, flue gas enters nonaqueous dust cleaner and is dusted later, and the flue gas for meeting emission request is arranged by dedusting fan through chimney
Enter atmosphere；In the steel slag slag stewing process later period, the exhaust gas volumn of generation is largely reduced, and the moisture content in flue gas is also greatly lowered, this
When, nonaqueous dust cleaner can be directly entered by bypass line using the flue gas after the trapping of smoke catching cover and be dusted, be not required to
It carries out the pre- dedusting of water spray wet process and is dehydrated with solution dehydrates device, dedusting fan uses frequency conversion fall-back, saves energy
Consumption reduces operating cost；Weak solution is regenerated using solution regenerator, realizes the recycling of solution, while can also be right
Vapor is recycled, and is realized the recycling of water resource, is reduced environmental pollution.
The dry-method dust-removal device for the aqueous flue dust of steel slag of the utility model include: flue gas dust collecting system, water system,
Sewage recovering system, solution regeneration cycle use system.The the first water inlet pipe valve 30 and flue gas dust collecting system of water system
Wet process pre- dedusting water inlet connection, the second water inlet pipe 31 and the second water inlet pipe valve 32 of water system be located at braised slag pool
33 top；The overflow pipe 34 of sewage recovering system is connect with the pre- dedusting gap 8 of the wet process of flue gas dust collecting system, Sewage treatment
The blowdown valve 35 of system is connect with the pre- dedusting sewage draining exit 7 of the wet process of flue gas dust collecting system, the solution regenerator of sewage recovering system
Branch drain 44 is connect with solution regeneration cycle using the solution regenerator drain outlet 43 of system, the draining of sewage recovering system
General pipeline 37 is located at bored 33 top of slag bath；Solution regeneration cycle uses the weak solution pipeline 38 of system and the solution of flue gas dust collecting system
15 connection of dehydrator weak solution outlet, solution regeneration cycle use the concentrated solution pipeline 42 of system and the solution of flue gas dust collecting system
Dehydrator concentrated solution import 14 connects.
Flue gas dust collecting system combines dewatering using the pre- dedusting of water spray wet process and solution dehydrates device, realizes aqueous flue dust
Dry method dust；On the one hand water system meets the spray water supply requirement of wet process pre-duster 5, on the other hand meet braised slag pool 33
Water supply requirement；Solution regeneration cycle realizes the recycling of solution using system, while recycling benefit can also be carried out to vapor
With.
Flue gas dust collecting system includes: smoke collecting cover 1, the first flue 2, the first gas fume valve 3, the pre- dedusting of wet process
The pre- dedusting exhanst gas outlet 6 of gas inlet 4, wet process pre-duster 5, wet process, the second flue 10, solution dehydrates device gas inlet
11, solution dehydrates device 12, solution dehydrates device exhanst gas outlet 13, the second gas fume valve 16, third flue 17, nonaqueous dust cleaner
Gas inlet 18, nonaqueous dust cleaner 19, nonaqueous dust cleaner exhanst gas outlet 20, unloading valve 21, the 4th flue 22, dedusting fan
23, the 5th flue 24, chimney 25, flue gas by-pass line 26, third gas fume valve 27；Smoke collecting cover 1 is located at braised slag pool
Aqueous flue dust is collected in top, and exhanst gas outlet is connected with the first flue 2,2 other end of the first flue and the first flue gas
The connection of 3 air intake of valve, 3 outlet air end of the first gas fume valve are connect with the pre- dedusting gas inlet 4 of wet process, the pre- dedusting flue gas of wet process
Outlet 6 is connect with the second flue 10, and 10 other end of the second flue is connect with solution dehydrates device gas inlet 11, solution
Dehydrator exhanst gas outlet 13 is connect with 16 air intake of the second gas fume valve, 16 outlet air end of the second gas fume valve and third flue
17 connections, 17 other end of third flue connect with nonaqueous dust cleaner gas inlet 18, nonaqueous dust cleaner exhanst gas outlet 20 and
The connection of 4th flue 22,22 other end of the 4th flue are connect with the air inlet of dedusting fan 23, dedusting fan 23
Air outlet is connect with the 5th flue 24, and 24 other end of the 5th flue is connect with the air inlet of chimney 25, flue gas bypass
Third gas fume valve 27 is housed, 26 one end of flue gas by-pass line picks out from the first flue 2, and the other end is from the on pipeline 26
It is accessed on three flues 17, unloading valve 21 is mounted at the lower part ash bucket ash hole of nonaqueous dust cleaner 19.
Water system includes water inlet manifold 28, the first water inlet pipe 29, the first water inlet pipe valve 30, second water inlet branch
Pipe 31, the second water inlet pipe valve 32；Water inlet manifold 28 is divided into the first water inlet pipe 29 and the second water inlet pipe 31, the first water inlet
Branch pipe valve 30 is mounted on the first water inlet pipe 29, and 30 one end of the first water inlet pipe valve is propped up with along the water inlet of water (flow) direction first
The water inlet end of pipe 29 connects, and the other end is connect with the pre- dedusting water inlet 9 of wet process, the second water inlet pipe valve 32 be mounted on second into
On water branch pipe 31,32 one end of the second water inlet pipe valve is connect with the water inlet end along the second water inlet pipe of water (flow) direction 31, another
The outlet conduit and water exit elbow of the second water inlet pipe 31 of end connection.On the one hand water system meets the spray of wet process pre-duster 5
Water supply requirement is drenched, the water supply requirement of braised slag pool 33 is on the other hand met.
Sewage recovering system overflow pipe 34, blowdown valve 35, sewage pipe 36, main sewer 37, solution regenerator branch drain
44, water seal 45；34 one end of overflow pipe is connect with the pre- dedusting gap 8 of wet process, and the other end accesses on main sewer 37, blowdown valve
35 one end are connect with the pre- dedusting sewage draining exit 7 of wet process, and the other end is connect with the water inlet end along water (flow) direction sewage pipe 36, sewage pipe
36 other ends access on main sewer 37, and 44 one end of solution regenerator branch drain is connect with solution regenerator drain outlet 43,
The other end is connect with the water inlet end of water seal 45, and on the water outlet access main sewer 37 of water seal 45, main sewer 37 is located at slag stewing
Above the high-water line in pond 33.The waste of sewage recovering system reduction water resource.
Solution regeneration cycle uses system weak solution pipeline 38, the dilute solution inlet 39 of solution regenerator, solution regenerator
40, the concentrated solution of solution regenerator exports 41, concentrated solution pipeline 42；The alkene solution of 38 one end of weak solution pipeline and solution dehydrates device
The dilute solution inlet 39 of 15 connection of outlet, the other end and solution regenerator connects, 42 one end of concentrated solution pipeline and solution dehydrates device
Concentrated solution import 14 connect, 41 connection of concentrated solution outlet of the other end and solution regenerator.
The processing step of the utility model includes:
1) exhaust gas volumn generated within steel slag slag stewing initial stage, braised slag pool is larger, and moisture vapor is more in flue gas, at this point, the
One gas fume valve and the second gas fume valve are opened, and the third gas fume valve on flue gas bypass line is closed, and are collected by fume trap cover
Aqueous flue dust initially entered in wet process pre-duster by flue, the water droplet of grit and sprinkling in one side flue gas,
When meeting the processes such as the wetting, cohesion, sedimentation of grit can occur for moisture film or the wall of wetting, device, separate from gas,
Achieve the purpose that pre- dedusting；Pre- efficiency of dust collection reaches 68-72%；On the other hand due to the cooling effect of water spray, flue gas middle part
Divide Water vapor condensation Cheng Shui, the water separation capability of subsequent solution dehydrator can be reduced；The sewage of wet process pre-duster lower part is regular
It is discharged into braised slag pool slag stewing through main sewer by blowdown valve to use, when blowdown valve does not work, wet process pre-duster shower water passes through
Overflow port at the high water level of its underpart also flows into main sewer, flows back to braised slag pool.
2) flue gas come out from wet process pre-duster enters back into the dehydration of solution dehydrates device by flue, using solution and
There are biggish steam partial pressure, concentrated solutions can absorb the vapor in flue gas rapidly for humid flue gas, reaches to containing shredded tobacco for water pipes
The dehydration of gas meets the subsequent requirement for carrying out dry method dust.
3) concentrated solution becomes weak solution after absorbing vapor, and weak solution enters solution after the outflow of solution dehydrates device and regenerates
Device, solution regenerator are vacuum tank, and solution concentration improves to form concentrated solution after weak solution regeneration, then flow back into solution dehydrates device
The middle vapor for absorbing humid flue gas is dehydrated, and is recycled；Vapor in regenerator accumulates in upper space, cold
But under the cooling effect of water, vapor condenses into water again, flows into main sewer by water seal by discharge outlet, flows back to braised slag pool, real
The recycling of existing water resource.
4) it enters back into nonaqueous dust cleaner by flue through the dewatered flue gas of solution dehydrates device to be dusted, dry method is removed
Dirt device is using conventional bag filter or sinter-plate precipitator；Nonaqueous dust cleaner dedusting ash is discharged by ash bucket lower part unloading valve.
5) exhaust gas volumn generated within the steel slag slag stewing later period, braised slag pool is smaller, and moisture vapor is also less in flue gas, Ke Yibian
The operation of frequency adjustable speed fan low speed, at this point, the first gas fume valve and the second gas fume valve are closed, the third cigarette on flue gas bypass line
Air valve is opened, and is directly entered nonaqueous dust cleaner by flue gas bypass line by the flue dust that fume trap cover is collected and is dusted.
6) atmosphere is discharged by chimney by dedusting fan by the clean gas after nonaqueous dust cleaner dedusting.
The utility model having the beneficial effect that using the pre- dedusting of water spray wet process and solution dehydrates device compared with the existing technology
Dewatering is combined, dehydrating effect is good, and moisture content can control within 5% in flue gas；Again using conventional bag filter or
Modeling burns version deduster and carries out dry method dust, realizes the dry dedusting technology of aqueous flue dust, reduces sewage disposal system, reduces work
Journey investment, dust emission index are fully able to satisfaction≤20mg/Nm3Environmental requirement；Using solution regenerator to weak solution into
Row regeneration, realizes the recycling of solution, while can also recycle to vapor, realizes the recycling of water resource.
The utility model advantage is: it is good to the dehydrating effect of aqueous flue dust, realize the dry method dust to now aqueous flue dust
Technique, high dust collection efficiency, system is simple, stable and reliable operation, and solving conventional wet lay dust pelletizing system dust emission can not be up to standard
The problem of, reduce sewage disposal system, reduce construction investment, is carried out using the solution dehydrates to humid flue gas and to weak solution
Regeneration, realizes the recycling of solution, while can also recycle to vapor, realizes the recycling of water resource, reduces ring
Border pollution.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model.Wherein, smoke collecting cover 1, the first flue 2, the first gas fume valve 3,
The pre- dedusting gas inlet 4 of wet process, wet process pre-duster 5, the pre- dedusting exhanst gas outlet 6 of wet process, the pre- dedusting sewage draining exit 7 of wet process, wet process
The pre- dedusting water inlet 9 of pre- dedusting gap 8, wet process, the second flue 10, solution dehydrates device gas inlet 11, solution dehydrates
Device 12, solution dehydrates device exhanst gas outlet 13, solution dehydrates device concentrated solution import 14, solution dehydrates device alkene taphole 15, second
Gas fume valve 16, third flue 17, nonaqueous dust cleaner gas inlet 18, nonaqueous dust cleaner 19, nonaqueous dust cleaner flue gas go out
Mouth 20, nonaqueous dust cleaner unloading valve 21, the 4th flue 22, dedusting fan 23, the 5th flue 24, chimney 25, flue gas
By-pass line 26, third gas fume valve 27, water inlet manifold 28, the first water inlet pipe 29, the first water inlet pipe valve 30, second
Water inlet pipe 31, the second water inlet pipe valve 32, braised slag pool 33, overflow pipe 34, blowdown valve 35, sewage pipe 36, main sewer
37, weak solution pipeline 38, solution regenerator dilute solution inlet 39, solution regenerator 40, solution regenerator concentrated solution outlet 41, it is dense
Solution line 42, solution regenerator drain outlet 43, solution regenerator branch drain 44, water seal 45.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, with reference to embodiments, to this
Utility model is further elaborated；It should be appreciated that specific embodiment described herein is only used to explain that this is practical
It is novel, it is not used to limit the utility model.
A kind of dry-dedusting system and its technique for the aqueous flue dust of steel slag provided by the embodiment of the utility model uses
The pre- dedusting of water spray wet process and solution dehydrates device combine dewatering, and dehydrating effect is good, and moisture content can be controlled 5% in flue gas
Within；Version deduster is burnt using conventional bag filter or modeling again and carries out dry method dust, realizes the dry method dust work of aqueous flue dust
Skill reduces sewage disposal system, reduces construction investment, and dust emission index is fully able to satisfaction≤20mg/Nm3Environmental protection want
It asks；Weak solution is regenerated using solution regenerator, realizes the recycling of solution, while can also return to vapor
It receives, realizes the recycling of water resource.
The application principle of the utility model is further described with reference to the accompanying drawing.
As shown in Figure 1, the dry-dedusting system for the aqueous flue dust of steel slag of the utility model includes: flue gas ash removal system
System, water system, sewage recovering system, solution regeneration cycle use system.
It is pre- by smoke collecting cover 1, the first flue 2, the first gas fume valve 3, the pre- dedusting gas inlet 4 of wet process, wet process
The pre- dedusting exhanst gas outlet 6 of deduster 5, wet process, the second flue 10, solution dehydrates device gas inlet 11, solution dehydrates device 12,
Solution dehydrates device exhanst gas outlet 13, the second gas fume valve 16, third flue 17, nonaqueous dust cleaner gas inlet 18, dry method
Deduster 19, nonaqueous dust cleaner exhanst gas outlet 20, unloading valve 21, the 4th flue 22, dedusting fan 23, the 5th flue
24, chimney 25, flue gas by-pass line 26, third gas fume valve 27 form flue gas dust collecting system, realize that aqueous flue dust dehydration is laggard
Row dry dedusting technology meets environment protection emission requirement；
By water inlet manifold 28, the first water inlet pipe 29, the first water inlet pipe valve 30, the second water inlet pipe 31, second into
Water branch pipe valve 32 forms water system；On the one hand meet the spray water supply requirement of wet process pre-duster 5, on the other hand meet stewing
The water supply requirement of slag bath 33；
By overflow pipe 34, blowdown valve 35, sewage pipe 36, main sewer 37, solution regenerator branch drain 44,45 groups of water seal
At sewage recovering system, the waste of water resource is reduced；
By weak solution pipeline 38, the dilute solution inlet 39 of solution regenerator, solution regenerator 40, solution regenerator it is dense molten
Liquid outlet 41, concentrated solution pipeline 42 form solution regeneration cycle and use system；Realize the recycling of solution, while can also be to water
Steam is recycled；
The utility model is further described below with reference to working principle and processing step；
A kind of dry-dedusting system and its technique for the aqueous flue dust of steel slag, working principle and processing step packet
It includes:
1) exhaust gas volumn generated within steel slag slag stewing initial stage, braised slag pool is larger, and moisture vapor is more in flue gas, at this point, the
One gas fume valve and the second gas fume valve are opened, and the third gas fume valve on flue gas bypass line is closed, and are collected by fume trap cover
Aqueous flue dust initially entered in wet process pre-duster by flue, the water droplet of grit and sprinkling in one side flue gas,
When meeting the processes such as the wetting, cohesion, sedimentation of grit can occur for moisture film or the wall of wetting, device, separate from gas,
Achieve the purpose that pre- dedusting, efficiency of dust collection about reaches 70% or so；On the other hand due to the cooling effect of water spray, flue gas middle part
Divide Water vapor condensation Cheng Shui, reduces flue-gas temperature and flue gas moisture content, the water separation capability of subsequent solution dehydrator can be reduced.
The sewage of wet process pre-duster lower part periodically passes through blowdown valve and is discharged into braised slag pool slag stewing use through main sewer, and blowdown valve does not work
When, wet process pre-duster shower water also flows into main sewer by the overflow port at the high water level of its underpart, flows back to braised slag pool.
2) flue gas come out from wet process pre-duster enters back into the dehydration of solution dehydrates device by flue, using some suctions
Aqueous good solution, such as lithium bromide, lithium chloride, the solution such as calcium chloride come into full contact with humid flue gas, using solution with it is aqueous
There are biggish steam partial pressure, concentrated solutions can absorb the vapor in flue gas rapidly, reach to humid flue gas for flue gas
Dehydration, moisture control meets the subsequent requirement for carrying out dry method dust within 5% in flue gas.
3) concentrated solution becomes weak solution after absorbing vapor, and weak solution enters solution after the outflow of solution dehydrates device and regenerates
Device, solution regenerator are vacuum tank, and there are heat source and cooling water cooling coil in inside, weak solution after regenerator heating,
Vapor evaporation, solution concentration improves to form concentrated solution, then flow back into solution dehydrates device absorb the vapor of humid flue gas into
Row dehydration, is recycled；The vapor formed after weak solution heating accumulates in the upper space of regenerator, in cooling coil
Under cooling effect, vapor condenses into water again, flows into main sewer by water seal by discharge outlet, flows back to braised slag pool, realizes water money
The recycling in source.
4) it enters back into nonaqueous dust cleaner by flue through the dewatered flue gas of solution dehydrates device to be dusted, dry method is removed
Dirt device reaches 99% or more using conventional bag filter or sinter-plate precipitator, technology maturation, efficiency of dust collection, and dust emission refers to
Mark reaches≤20mg/Nm3；Nonaqueous dust cleaner dedusting ash is discharged by ash bucket lower part unloading valve.
5) exhaust gas volumn generated within the steel slag slag stewing later period, braised slag pool is smaller, and moisture vapor is also less in flue gas, Ke Yibian
The operation of frequency adjustable speed fan low speed, energy saving reduce operating cost, at this point, the first gas fume valve and the second gas fume valve are closed,
Third gas fume valve on flue gas bypass line is opened, and is directly entered by the flue dust that fume trap cover is collected by flue gas bypass line
Nonaqueous dust cleaner is dusted.
6) atmosphere is discharged by chimney by dedusting fan by the clean gas after nonaqueous dust cleaner dedusting.
Using a kind of dry-dedusting system and its technique for the aqueous flue dust of steel slag, the aqueous flue dust of steel slag can be substituted
Wet dedusting technique, high dust collection efficiency, system is simple, stable and reliable operation, solves conventional wet lay dust pelletizing system dust emission
Problem that can not be up to standard reduces sewage disposal system, construction investment is reduced, using the solution dehydrates to humid flue gas and to dilute
Solution is regenerated, and realizes the recycling of solution, while can also recycle to vapor, realizes the recycling benefit of water resource
With reducing environmental pollution.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (5)
1. a kind of dry-method dust-removal device for the aqueous flue dust of steel slag characterized by comprising flue gas dust collecting system, for water system
System, sewage recovering system, solution regeneration cycle use system；The the first water inlet pipe valve (30) and flue gas ash removal of water system
The pre- dedusting water inlet connection of the wet process of system, the second water inlet pipe (31) of water system and second water inlet pipe valve (32) position
In the top of braised slag pool (33)；The overflow pipe (34) of sewage recovering system and the pre- dedusting gap of wet process of flue gas dust collecting system
(8) it connects, the blowdown valve (35) of sewage recovering system is connect with the pre- dedusting sewage draining exit (7) of the wet process of flue gas dust collecting system, waste water
The solution regenerator branch drain (44) and solution regeneration cycle of recovery system use the solution regenerator drain outlet of system
(43) it connects, the main sewer (37) of sewage recovering system is located above braised slag pool (33)；Solution regeneration cycle uses system
Weak solution pipeline (38) is connect with the solution dehydrates device weak solution of flue gas dust collecting system outlet (15), and solution regeneration cycle uses system
The concentrated solution pipeline (42) of system is connect with the solution dehydrates device concentrated solution import (14) of flue gas dust collecting system.
2. dry-method dust-removal device according to claim 1, which is characterized in that flue gas dust collecting system, including smoke collecting cover
(1), the pre- dedusting gas inlet (4) of the first flue (2), the first gas fume valve (3), wet process, wet process pre-duster (5), wet
It is the pre- dedusting exhanst gas outlet (6) of method, the second flue (10), solution dehydrates device gas inlet (11), solution dehydrates device (12), molten
Solution dehydrator exhanst gas outlet (13), the second gas fume valve (16), third flue (17), nonaqueous dust cleaner gas inlet
(18), nonaqueous dust cleaner (19), nonaqueous dust cleaner exhanst gas outlet (20), unloading valve (21), the 4th flue (22), dedusting wind
Machine (23), the 5th flue (24), chimney (25), flue gas by-pass line (26), third gas fume valve (27)；
Smoke collecting cover (1) is located above braised slag pool, and exhanst gas outlet is connected with the first flue (2), the first flue
(2) other end is connect with the first gas fume valve (3) air intake, the first gas fume valve (3) outlet air end and the pre- dedusting flue gas of wet process into
Mouth (4) connection, the pre- dedusting exhanst gas outlet (6) of wet process connect with the second flue (10), the second flue (10) other end
It is connect with solution dehydrates device gas inlet (11), solution dehydrates device exhanst gas outlet (13) and the second gas fume valve (16) air intake connect
It connects, the second gas fume valve (16) outlet air end is connect with third flue (17), third flue (17) other end and dry method
Deduster gas inlet (18) connection, nonaqueous dust cleaner exhanst gas outlet (20) are connect with the 4th flue (22), the 4th flue gas
Pipeline (22) other end is connect with the air inlet of dedusting fan (23), the air outlet and the 5th flue of dedusting fan (23)
(24) it connects, the 5th flue (24) other end is connect with the air inlet of chimney (25), and flue gas by-pass line is equipped on (26)
Third gas fume valve (27), flue gas by-pass line (26) one end are picked out from the first flue (2), and the other end is from third flue gas
Pipeline accesses on (17), and unloading valve (21) is mounted at the lower part ash bucket ash hole of nonaqueous dust cleaner (19).
3. dry-method dust-removal device according to claim 1, which is characterized in that water system includes: water inlet manifold (28),
One water inlet pipe (29), the first water inlet pipe valve (30), the second water inlet pipe (31), the second water inlet pipe valve (32)；Always
Water inlet pipe (28) is divided into the first water inlet pipe (29) and the second water inlet pipe (31), and the first water inlet pipe valve (30) is mounted on
On one water inlet pipe (29), first water inlet pipe valve (30) one end and the water inlet end along the first water inlet pipe of water (flow) direction (29)
Connection, the other end are connect with the pre- dedusting water inlet (9) of wet process, and the second water inlet pipe valve (32) is mounted on the second water inlet pipe
(31) on, second water inlet pipe valve (32) one end is connect with the water inlet end along the second water inlet pipe of water (flow) direction (31), another
The outlet conduit and water exit elbow of end connection the second water inlet pipe (31).
4. dry-method dust-removal device according to claim 1, which is characterized in that sewage recovering system is by overflow pipe (34), row
Dirty valve (35), sewage pipe (36), main sewer (37), solution regenerator branch drain (44), water seal (45)；Overflow pipe (34) one
End is connect with the pre- dedusting gap (8) of wet process, and the other end accesses on main sewer (37), and blowdown valve (35) one end is removed in advance with wet process
Dirt sewage draining exit (7) connection, the other end are connect with the water inlet end along water (flow) direction sewage pipe (36), the access of sewage pipe (36) other end
On main sewer (37), solution regenerator branch drain (44) one end is connect with solution regenerator drain outlet (43), the other end
It is connect with the water inlet end of water seal (45), in water outlet access main sewer (37) of water seal (45), main sewer (37) is located at stewing
Above the high-water line of slag bath (33).
5. dry-method dust-removal device according to claim 1, which is characterized in that solution regeneration cycle includes: dilute using system
The concentrated solution outlet of solution line (38), the dilute solution inlet (39) of solution regenerator, solution regenerator (40), solution regenerator
(41), concentrated solution pipeline (42)；Weak solution pipeline (38) one end is connect with the weak solution of solution dehydrates device outlet (15), the other end
It is connect with the dilute solution inlet (39) of solution regenerator, the concentrated solution import of concentrated solution pipeline (42) one end and solution dehydrates device
(14) it connects, concentrated solution outlet (41) connection of the other end and solution regenerator.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110077568A (en) * | 2019-04-30 | 2019-08-02 | 上海外高桥造船有限公司 | A kind of auxiliary exhaust range of Large Container Ship |
| CN111154932A (en) * | 2020-01-06 | 2020-05-15 | 中冶东方工程技术有限公司 | Mobile cover vehicle and treatment method for water-containing dust in steel slag hot disintegration process |
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2018
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110077568A (en) * | 2019-04-30 | 2019-08-02 | 上海外高桥造船有限公司 | A kind of auxiliary exhaust range of Large Container Ship |
| CN111154932A (en) * | 2020-01-06 | 2020-05-15 | 中冶东方工程技术有限公司 | Mobile cover vehicle and treatment method for water-containing dust in steel slag hot disintegration process |
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