CN205164294U - A gypsum discharge system for desulphurization unit of sintering system - Google Patents
A gypsum discharge system for desulphurization unit of sintering system Download PDFInfo
- Publication number
- CN205164294U CN205164294U CN201520883594.5U CN201520883594U CN205164294U CN 205164294 U CN205164294 U CN 205164294U CN 201520883594 U CN201520883594 U CN 201520883594U CN 205164294 U CN205164294 U CN 205164294U
- Authority
- CN
- China
- Prior art keywords
- waste water
- gypsum
- water tank
- pipeline
- steam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a gypsum discharge system for desulphurization unit of sintering system, including the gypsum swirler of inserting the absorption tower thick liquid, the thick liquid export of gypsum swirler bottom links to each other with vacuum belt hydroextractor through the pipeline, the filtrating of vacuum belt hydroextractor is stored to catch water through the pipeline, gypsum swirler overflow mouth pass through pipeline and pit and link to each other, the underflow of catch water after storing pass through the pipeline and get into the waste water tank, the waste water tank in install the waste water tank agitator, waste water passes through the waste water pump and arranges outward in the waste water tank. The utility model discloses an equipment such as cancellation thick liquid baffle -box, delivery pump, wastewater cyclone have been practiced thrift manpower, material resources and have been shortened the duration of a project, outer row of gypsum and effluent disposal system flow become simply, have reduced the operational failure of system point, reduce the maintenance volume, have reduced the operation expense of system, and reduced equipment area and reduced the building floor height, outer heat -extraction system of gypsum and the outer heat -extraction system of waste water are arranged compactlyer.
Description
Technical field
The utility model relates to a kind of gypsum for sintering system desulfurizer and discharges system.
Background technology
The SO of steel and iron industry
2discharge capacity is only second to electric power and chemical industry, the SO that sintering process process produces
2discharge capacity accounts for iron and steel enterprise annual emissions 40%-60%, controls sintering machine production process SO
2discharge, be iron and steel enterprise SO
2the emphasis of Environmental capacity.Because sintering deposit is very fine, add fuel and volume in sinter mixture, sintering process is again carry out under high temperature (more than 1200 DEG C), therefore can produce a large amount of dust, SO
2, in addition also containing HCL, NO
x, HF, dioxin, Hg metal, also have high humidity simultaneously, flue gas fluctuate large feature.Be all that sulfur removal technology and waste water efflux technology qualified discharge propose more harsh requirement.
In desulphurization system, gypsum slurries is in the process recycled, the continuous enrichments of material such as the chlorion in flue gas, dust, heavy metal, the enrichment of these materials can produce heavy corrosion to each equipment of desulphurization system, affect the operational effect of desulphurization system, also the impurity content in outer lithoexpulsium paste can be made too high, affect its quality.Therefore desulphurization system needs the waste water that carries out of not timing to arrange (usually need demonstrate,prove chloride ion content in slurries and be not more than 20000ppm) outward, reduces the impurity concentration in slurries, ensures the stable operation of whole desulphurization system.
The processing mode of the gypsum discharging system of current routine is the form adopting two-stage cyclones addition materials pump, specifically see Fig. 1.Idiographic flow is: the slurries of discharging from absorption tower are delivered to after one-level gypsum cyclone through gypsum efflux pump, bottom slurry (solid content about 50%) enters vacuum belt dewaterer, filtrate and filter cloth washing water are all entered melt pit by steam-water separator by vacuum belt dewaterer, and gypsum storehouse sent into by the filter cake of water content about 10%; The overflowing liquid of one-level gypsum cyclone enters baffle-box and stores, and send into second cyclone, namely waste-water vortex device by the feed pump of a preparation and a use, the underflow of waste-water vortex device enters melt pit, and overflowing liquid enters waste water tank, waits pending and outer row; The slurries entering melt pit again can be delivered in desulfurizing tower and recycle.
Above-mentioned technique also exists following defect: complicated in above-mentioned gypsum dehydration technological process, add the maintenance workload of equipment, cyclone often wear phenomenon occurs and do not reach separating effect; In addition, because the solid-liquid separation effect of cyclone is poor, through the process of two-stage cyclones, enter still containing a large amount of solids in the overflowing liquid of waste water tank, this fraction solids not only containing the absorbent solid still do not reacted completely, causes a part of wasting of resources, other impurity can not qualified discharge in addition, follow-up also needs reduces waste water solid content by adding flocculant, no matter is increase workload to be also the increase in investment, operating cost, all there is drawback.
Utility model content
The purpose of this utility model is to provide a kind of gypsum for sintering system desulfurizer to discharge system, complicated at operating condition of sintering machine, when flue gas impurity is many, solve conventional gypsum discharge system waste particles thing content excessive, the technical problem of flow process too complex.
The purpose of this utility model can be achieved through the following technical solutions:
Gypsum for sintering system desulfurizer discharges a system, comprises the gypsum cyclone of access absorption tower slurries, and the outlet of gypsum cyclone bottom slurry is connected with vacuum belt dewaterer by pipeline; The filtrate of vacuum belt dewaterer is by cartridge storage to steam-water separator, and described gypsum cyclone overfall is connected with melt pit by pipeline; Underflow after described steam-water separator stores enters waste water tank by pipeline; Be provided with waste water tank agitator in described waste water tank, in waste water tank, waste water is arranged outward by waste water pump.
Described waste water tank is provided with two waste water pumps.
Described steam-water separator is provided with steam-water separator pressure transmitter for monitor force, is provided with steam-water separator liquid level gauge for level monitoring.
Described melt pit is provided with pit stirrer.
Compared with prior art, the utility model has following characteristics and beneficial effect:
The utility model eliminates a series of equipment between gypsum cyclone overfall to waste water tank, simplifies system flow.Absorption tower place slurries enter gypsum cyclone (this part run is identical) by gypsum excavationg pump, gypsum cyclone overflowing liquid no longer enters second cyclone and cancels waste-water vortex device, but directly deliver to melt pit, the still higher slurries of this part solid content can be recycled again; The underflow of gypsum cyclone enters vacuum belt dewaterer second dehydration, the solid-liquid separation effect of vacuum belt dewaterer is good, gypsum storehouse sent into by the filter cake of solid content about 90%, and the filtrate of relatively clarifying directly sends into waste water tank after steam-water separator stores, waste water solid content now in waste water tank is little, only need carry out simple process can discharge, still send into melt pit for the flushing water rinsing filter cloth.
The advantage done like this mainly contains: the initial investment that 1, can be reduced desulphurization system by cancellation slurries baffle-box, feed pump, secondary waste water cyclone and corresponding pipeline and valve, has saved human and material resources and has shortened the duration of a project simultaneously in the process of engineering construction; 2, gypsum is arranged outward and Waste Water Treatment flow process becomes simple, decreases system cloud gray model trouble point, reduces maintenance, reduces the operation expense of system; 3, can reduce occupation area of equipment and reduce building storey height, gypsum discharging system and waste water discharging system are arranged compacter.
Accompanying drawing explanation
The utility model to be further described below in conjunction with accompanying drawing for the ease of it will be appreciated by those skilled in the art that.
Fig. 1 is the structural representation that in prior art, gypsum discharges system;
Fig. 2 is the structural representation that the utility model gypsum discharges system.
Reference numeral: 1-pressure converter one, 2-gypsum cyclone, 3-butterfly valve, 4-vacuum belt dewaterer, 5-cofferdam, 6-melt pit, 7-pit stirrer, 8-compressed air relief valve, 9-pressure transmitter two, 10-ball valve one, 11-electric butterfly valve, 12-pressure transmitter three, 13-ball valve two, 14-ball valve three, 15-ball valve four, 16-flowmeter, 17-ball valve five, 18-vacuum pump pressure transmitter, 19-vavuum pump, 20-steam trap, 21-steam-water separator pressure transmitter, 22-steam-water separator liquid level gauge, 23-steam-water separator, 24-waste water tank agitator, 25-waste water tank, 26-waste water pump, 27-pressure transmitter four, 28-ball valve five, 29-ball valve six, 30-baffle-box, 31-feed pump, 32-waste-water vortex device.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in more detail, and in accompanying drawing, all line segments with arrow represent pipeline and medium trend.
A kind of gypsum for sintering system desulfurizer discharges system, be applicable to sintered flue gas desulfurization gypsum and discharge system and waste water discharging system, see Fig. 2, mainly comprise gypsum cyclone 2, vacuum belt dewaterer 4, melt pit 6, vavuum pump 19, steam-water separator 23, waste water tank 25, waste water pump 26 etc.
Absorption tower slurries enter gypsum cyclone 2 through pressure converter 1, butterfly valve 3, the outlet of gypsum cyclone 2 bottom slurry is connected with vacuum belt dewaterer 4 by pipeline, bottom slurry flows to vacuum belt dewaterer 4, gypsum cyclone 2 overfall is connected with melt pit 6 by pipeline, melt pit 6 is provided with pit stirrer 7, the Main Function of melt pit 6 stores the larger filtrate of solid content, returns desulfurizing tower and recycle.
Vacuum belt dewaterer 4 is positioned at above cofferdam 5, and cofferdam 5 is by pipeline access melt pit 6.
The compressed air decompression 8 of compressed air, pressure transmitter 29, ball valve 1 access vacuum belt dewaterer 4, compressed air line Main Function, for preventing from rectifying a deviation during vacuum belt dewaterer belt deviation use, regulates air demand by ball valve 1.
Fresh water (FW) pipeline is mainly for vacuum belt dewaterer 4 filter cloth washing, by electric butterfly valve 11, ball valve 2 13, ball valve 5 28, ball valve 6 29 adjust flux, wherein, one branch road accesses vacuum belt dewaterer 4 one end through ball valve 5 28, pressure transmitter 4 27, another branch road accesses vacuum belt dewaterer 4 other end through ball valve 4 15, flowmeter 16, ball valve 6 29, and the 3rd branch road accesses middle side part on vacuum belt dewaterer 4 through pressure transmitter 3 12, ball valve 2 13, ball valve 3 14.The pressure transmitter 3 12 that pipeline is provided with, pressure transmitter 4 27 are for monitoring loine pressure.
The filtrate of vacuum belt dewaterer 4 stores rear underflow by steam-water separator 23 and enters waste water tank 25 by pipeline, waste water tank agitator 24 is installed in waste water tank 25, in waste water tank 25, waste water is by the outer row of waste water pump 26, waste water pump 26 is provided with two, consider according to a preparation and a use, steam-water separator 23 is provided with steam-water separator pressure transmitter 21 for monitor force, is provided with steam-water separator liquid level gauge 22 for level monitoring.
Steam-water separator 23 overflow passage accesses to technique water tank by vavuum pump 19, steam trap 20, vavuum pump 19 is provided with vacuum pump pressure transmitter 18, vavuum pump 19 is for vacuumizing filter cloth, vavuum pump 19 accesses fresh water (FW) pipeline by ball valve 5 17, and ball valve 5 17 is for the cooling water runoff investigation of vavuum pump.
Technical solutions of the utility model mainly change the slurries whereabouts of gypsum cyclone 2 overfall, in original scheme, see Fig. 1, gypsum cyclone 2 overflowing liquid enters baffle-box 30 by pipeline connection, slurries in baffle-box 30 are connected by the road by feed pump 31 delivers to waste-water vortex device 32, the bottom slurry of waste-water vortex device 32 enters melt pit 6, and overflowing liquid enters waste water tank 25.
In the present embodiment, the overflowing liquid of gypsum cyclone 2 directly delivers to melt pit 6 by pipeline, because the solid-liquid separation effect of gypsum cyclone 2 is poor, still containing a lot of solid matter (containing the unreacted desulfurizing agent of part) in overflowing liquid, this part material is sent into melt pit and is conducive to saving operating cost.
What the utility model mainly changed enter in addition filtrate that waste water tank 25 processes comes to.Original filtrate entering waste water tank 25 is from waste-water vortex device 32, although waste-water vortex device 32 is second cyclones, in overflowing liquid, solid content is still more, and in waste water tank 25, wastewater treatment can increase difficulty, needs to add a large amount of flocculant.
The overflowing liquid that the present embodiment gypsum cyclone 2 solid content is larger enters melt pit 6 reuse, and enter the waste water of waste water tank 25 from steam-water separator 23, steam-water separator 23 is mainly used for the filtrate of collecting vacuum belt dewaterer 4, vacuum belt dewaterer solid-liquid separation effect is good, filter cake moisture content is lower than 10%, therefore the filtrate solids content of this part is little, only needs simple process after entering waste water tank 25.
The solid content of traditional scheme not only in waste water is comparatively large, and because solid content is large, cause wearing and tearing to relevant device, device damage rate and maintenance also can increase.
The present embodiment solves above-mentioned drawback, eliminate baffle-box 30, feed pump 31, waste-water vortex device 32 and relevant connection pipeline, valve etc., not only solve and enter the large problem of waste water tank 25 filtrate solid content, also simplify system flow, avoid equipment attrition, decrease initial investment and later stage operating cost.
Calculate with embodiment, certain 380m
2sintering machine desulfuration gypsum discharging system reduces equipment and comprises: waste-water vortex device, baffle-box, baffle-box agitator, pressure transmitter, line with rubber valve and connecting pipe etc., reduces cost condition as follows:
| The installations and facilities reduced | Quantity | Unit | Price (ten thousand yuan) | |
| Technique | Waste-water vortex device | 1 | Platform | 9 |
| Baffle-box (containing anticorrosion) | 1 | Seat | 12.5 | |
| Baffle-box agitator | 1 | Platform | 3 | |
| Line with rubber valve | 1 | Cover | 6.5 | |
| Pipeline | 1 | Cover | 15 | |
| Instrument control | Pressure transmitter | 5 | ||
| Electrically | Cable | 3.5 | ||
| Add up to | 52.5 |
Above content is only to the utility model structure example and explanation; affiliated those skilled in the art make various amendment to described specific embodiment or supplement or adopt similar mode to substitute; only otherwise depart from the structure of utility model or surmount this scope as defined in the claims, protection domain of the present utility model all should be belonged to.
Claims (4)
1. the gypsum for sintering system desulfurizer discharges system, comprise the gypsum cyclone (2) of access absorption tower slurries, the outlet of gypsum cyclone (2) bottom slurry is connected with vacuum belt dewaterer (4) by pipeline; The filtrate of vacuum belt dewaterer (4), be is characterized in that to steam-water separator (23) by cartridge storage, and described gypsum cyclone (2) overfall is connected with melt pit (6) by pipeline; Underflow after described steam-water separator (23) stores enters waste water tank (25) by pipeline; Be provided with waste water tank agitator (24) in described waste water tank (25), in waste water tank (25), waste water is arranged outward by waste water pump (26).
2. a kind of gypsum for sintering system desulfurizer according to claim 1 discharges system, and it is characterized in that, described waste water tank (25) is provided with two waste water pumps (26).
3. a kind of gypsum for sintering system desulfurizer according to claim 1 discharges system, it is characterized in that, described steam-water separator (23) is provided with steam-water separator pressure transmitter (21) for monitor force, is provided with steam-water separator liquid level gauge (22) for level monitoring.
4. a kind of gypsum for sintering system desulfurizer according to claim 1 discharges system, and it is characterized in that, described melt pit (6) is provided with pit stirrer (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520883594.5U CN205164294U (en) | 2015-11-06 | 2015-11-06 | A gypsum discharge system for desulphurization unit of sintering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520883594.5U CN205164294U (en) | 2015-11-06 | 2015-11-06 | A gypsum discharge system for desulphurization unit of sintering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205164294U true CN205164294U (en) | 2016-04-20 |
Family
ID=55728333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520883594.5U Active CN205164294U (en) | 2015-11-06 | 2015-11-06 | A gypsum discharge system for desulphurization unit of sintering system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205164294U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107973330A (en) * | 2017-12-30 | 2018-05-01 | 唐山三友化工股份有限公司 | Alkaline residue supernatant and anhydrous sodium sulphate prepare calcium sulphate dihydrate, the device of strong brine and its production method |
-
2015
- 2015-11-06 CN CN201520883594.5U patent/CN205164294U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107973330A (en) * | 2017-12-30 | 2018-05-01 | 唐山三友化工股份有限公司 | Alkaline residue supernatant and anhydrous sodium sulphate prepare calcium sulphate dihydrate, the device of strong brine and its production method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110510773B (en) | Acidic mine water treatment system and method | |
| CN110510413B (en) | Device and method for conveying coarse-particle coal slurry through pipeline | |
| CN206544956U (en) | A kind of desulfurizing waste water processing device | |
| CN101007236A (en) | Preparation method of ultra-fine desulfurizer slurry and device thereof | |
| CN205164294U (en) | A gypsum discharge system for desulphurization unit of sintering system | |
| CN102872710B (en) | Waste water cyclone system for desulfuration device of thermal power station | |
| CN205164489U (en) | Lime stone - gypsum wet flue gas desulfurization inefficacy thick liquid processing apparatus | |
| CN208980594U (en) | A kind of lime device with Pneumatic power back-blowing equipment | |
| CN209872506U (en) | Device for strengthening internal circulation of IC reactor | |
| CN105289268A (en) | Limestone-gypsum wet flue gas desulfurization invalid pulp treatment device | |
| CN103910445A (en) | Desulfurization wastewater treatment device adopting efficient clarifier | |
| CN206375869U (en) | Wet desulphurization device | |
| CN202284157U (en) | Wet process metering system for lime powder | |
| CN111099756B (en) | Solid reducing process and system for wastewater for limestone-gypsum wet desulphurization | |
| CN111925085B (en) | Oil sludge treatment method suitable for heavy bottom oil sludge and tank cleaning oil sludge | |
| CN210559999U (en) | Desulfurization waste water mud recycle system | |
| CN209645988U (en) | A kind of dynamic filter-cloth filtering device assembly | |
| CN208526291U (en) | A kind of novel ammonia alkali waste recycling wet desulphurization device | |
| CN113186001A (en) | Blast furnace gas fine desulfurization system | |
| CN112744946A (en) | Lime wet flue gas desulfurization effluent treatment plant | |
| CN105254164A (en) | Desulphurization wastewater sludge treatment device | |
| CN214344869U (en) | Wastewater discharge system | |
| CN105152415B (en) | Sinter wet-type magnesium method desulfurization purification Waste Water Treatment and technique | |
| CN204798990U (en) | Effluent treatment plant based on wet flue gas desulfurization system | |
| CN219662962U (en) | Device for reducing concentration of chloride ions in desulfurization slurry |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |