CN109734233A - A kind of gasification ash water except dropping turbid device and process firmly - Google Patents
A kind of gasification ash water except dropping turbid device and process firmly Download PDFInfo
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- CN109734233A CN109734233A CN201910124106.5A CN201910124106A CN109734233A CN 109734233 A CN109734233 A CN 109734233A CN 201910124106 A CN201910124106 A CN 201910124106A CN 109734233 A CN109734233 A CN 109734233A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 234
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000002309 gasification Methods 0.000 title claims abstract description 39
- 230000008569 process Effects 0.000 title claims abstract description 16
- 238000004140 cleaning Methods 0.000 claims abstract description 152
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims abstract description 70
- 239000010797 grey water Substances 0.000 claims abstract description 44
- 230000008676 import Effects 0.000 claims abstract description 38
- 239000002002 slurry Substances 0.000 claims abstract description 22
- 239000006228 supernatant Substances 0.000 claims abstract description 14
- 238000007599 discharging Methods 0.000 claims abstract description 13
- 230000007306 turnover Effects 0.000 claims description 201
- 239000007921 spray Substances 0.000 claims description 41
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 39
- 238000000926 separation method Methods 0.000 claims description 35
- 238000011010 flushing procedure Methods 0.000 claims description 30
- 239000007788 liquid Substances 0.000 claims description 19
- 238000009826 distribution Methods 0.000 claims description 17
- 239000010802 sludge Substances 0.000 claims description 16
- 238000005406 washing Methods 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 230000009467 reduction Effects 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 11
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 7
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 6
- 150000001450 anions Chemical class 0.000 claims description 6
- 239000010962 carbon steel Substances 0.000 claims description 6
- 238000006477 desulfuration reaction Methods 0.000 claims description 6
- 230000023556 desulfurization Effects 0.000 claims description 6
- 239000003814 drug Substances 0.000 claims description 6
- 238000005189 flocculation Methods 0.000 claims description 6
- 230000016615 flocculation Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000001556 precipitation Methods 0.000 claims description 6
- 229920006395 saturated elastomer Polymers 0.000 claims description 5
- 230000032258 transport Effects 0.000 claims description 5
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 31
- 239000003245 coal Substances 0.000 description 8
- 239000011575 calcium Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007701 flash-distillation Methods 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241001416181 Axis axis Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000007115 recruitment Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Abstract
It is removed the invention belongs to a kind of gasification ash water and drops turbid device and process firmly；It is connected by ash-water pipeline with defecator including three stages of flashing system, three stages of flashing system, the slurry outlet of defecator bottom is connected by discharging pump with vacuum press filter, the supernatant outlet on defecator top is connected by threeway with the import of ash water tank, the outlet of ash water tank is connected by grey water pump with stand-by workshop section, and the third end of threeway is by buck except hard automatically cleaning unit is connected with the import of ash water tank；Buck is connected except the outlet at bottom of hard automatically cleaning shell with roller sieve part except the grey water inlet that hard automatically cleaning unit includes that buck is equipped with sour gas outlet and is connected with the third end of threeway except hard automatically cleaning shell, buck except the top of hard automatically cleaning shell, buck；With simple structure and reasonable design, energy conservation and environmental protection, operating cost is low, in buck 80% or so hardness can be removed, the gasification ash water system stable operation time can be effectively increased the advantages of.
Description
Technical field
The invention belongs to coal chemical industry gasification ash water preconditioning technique fields, and in particular to a kind of gasification ash water except dropping turbid dress firmly
It sets and process.
Background technique
Coal water slurry gasification is that China is built in recent years most as the most effective clean coal technology of coal utilizaton rate is improved
Coal gasifying process device；The buck of coal water slurry gasification is mainly derived from chilled water and washing water.Swash gasification furnace shock chamber bottom
The Coal-gas Washing Water Using that cold water and carbon wash tower tower bottom enters flash system by Heisui River pipeline, passes through hp flash drum, low pressure step by step
Flash tank, vacuum flasher.After high temperature Heisui River is by flash distillation cooling, lime-ash, dust in Heisui River, the Heisui River quilt after flash distillation is concentrated
It is sent to subsider, lime-ash, the dust flocculating setting in subsider, clear buck enters buck by the overflow weir of subsider
Slot.The buck of ash water tank is sent to deaerator all the way, is mixed with fresh water, low-temperature conversion condensate liquid, then by height by grey water pump
Pressure grey water pump, which is sent to carbon, washes tower and removes washing synthesis gas, then is pumped into Venturi scrubber and chilling ring by chilled water；It is sent to all the way
Lock hopper flushing water storage tank is as lock hopper flushing water；In cycles, it is recycled.
Coal water slurry gasification ash water system it is stable whether be directly related to the operation of gasification system, when coal gasification system
System goes wrong, and will affect the normal operation of ash water system, and ash water system fouling can also seriously affect the normal of gasification system
Operation；Ash water system fouling position mainly has chilling ring of gasifying furnace, gasification furnace (carbon washes tower) Heisui River outlet line, carbon to wash Ta Ta
Disk, hp flash drum, evaporation hot-water tower filler etc..
There are a large amount of Ca in gasification ash water2+, Mg2+, Si2+, Fe2+Deng, when they reach a certain concentration, meeting and water
In HCO3 -And CO3 2-In conjunction with generation carbonic acid class deposit and then scale formation occurs, and CaCO in production3Fouling is the most
It is common, CaCO under high temperature3It is dissolved in the water, CaCO when water temperature reduces3Be parsed into nucleus and constantly increase, and be attached to pipeline and
Equipment inner wall forms fouling, while fouling can wrap up a large amount of ash contents, and the speed for forming dirty piece becomes faster, and dirty piece becomes more
Firmly, very big difficulty is caused to cleaning work, more seriously dirty piece can cause line clogging after falling off, to seriously affect
System operates normally.
Existing buck is divided into two major classes except hard technology in the industry, and one is three method integrated apparatus of electric flocculation, another kind is
Using sodium hydroxide/sodium carbonate multi-step dosage method, above two method requires additionally to add chemical agent into water, not only deposits
Increase in operating cost, and also add the presence of water intermediate ion, increases difficulty for the processing of sewage terminal.
Summary of the invention
The object of the invention is that providing a kind of simple structure and reasonable design, energy-saving ring to solve the above-mentioned problems
Guarantor, operating cost is low, can remove in buck 80% or so hardness, can effectively increase the gasification ash water system stable operation time
A kind of gasification ash water except dropping turbid device and process firmly.
The present invention is through the following technical solutions to achieve the above objectives: logical including three stages of flashing system, three stages of flashing system
Cross that ash-water pipeline is connected with defecator, the slurry outlet of defecator bottom is connected by discharging pump with vacuum press filter, it is described clear
The supernatant outlet on clear slot top is connected by threeway with the import of ash water tank, and the outlet of ash water tank is by grey water pump and to recruitment
Duan Xianglian, the third end of the threeway is by buck except hard automatically cleaning unit is connected with the import of ash water tank；The buck is except hard
Automatically cleaning unit includes buck except hard automatically cleaning shell, buck except the top of hard automatically cleaning shell be equipped with sour gas outlet with
And the grey water inlet being connected with the third end of threeway, buck are connected except the outlet at bottom of hard automatically cleaning shell with roller sieve part, institute
Buck is stated except the inside of hard automatically cleaning shell is equipped with automatically cleaning turnover panel apparatus for eliminating sludge, cleaning turnover panel apparatus for eliminating sludge middle part is corresponding
Buck is equipped with sour gas import except hard automatically cleaning shell, sour gas import by centrifugal blower and dry desulfurization slot with it is low
Warm methanol washing tail-gas pipeline is connected；The sour gas outlet is connected with sour gas general pipeline.
Preferably, the roller sieve part includes rotary screen shell, and rotary screen enclosure interior is equipped with rotary screen, shaft screen shell
Bottom is equipped with separation water out, and separation water out is connected by pipeline with detritus tank, and the following side of shaft screen shell goes out equipped with solid
Material mouth.
Preferably, the cleaning turnover panel apparatus for eliminating sludge includes the sprocket wheel that buck is arranged in and removes hard automatically cleaning hull outside top
Rotary electric machine, buck are equipped with axis except hard automatically cleaning shell internal upper part, and sprocket wheel is set on axis and the rotation of several turnover panels is convex
The driving shaft sprocket wheel of wheel, sprocket wheel rotary electric machine is connected by chain with sprocket wheel；On the corresponding position in reprint rotation cam lower part
Turnover panel fixed frame, the inside of turnover panel fixed frame are equipped with several turnover panel blades, and the front end of turnover panel blade is equipped with scraper plate, turnover panel blade
End passes through to be movably connected on the inside of turnover panel blade rotation axis and turnover panel fixed frame, the turnover panel blade in same turnover panel fixed frame
Middle part is connected by turnover panel swivel-chain with corresponding turnover panel rotation cam.
Preferably, the turnover panel rotation cam is 4-8, and turnover panel fixed frame is 4-8, the turnover panel leaf in turnover panel fixed frame
Piece is 10-12, and turnover panel blade is fixedly connected with scraper plate, and the length of scraper plate is 7-8cm.
Preferably, the angle between the turnover panel blade and scraper plate is 90 °, and turnover panel blade and scraper plate are carbon steel material.
Preferably, the stroke up and down of the turnover panel swivel-chain is 15-25cm.
Preferably, spray piping, spray piping point are respectively equipped at the top of the top of the turnover panel fixed frame and rotary screen
It is not connected with flush box.
Preferably, the stand-by workshop section is that saturated hot-water tower circulating water intake, grey water- to-water heat exchanger and lock hopper rinse water pot.
Preferably, it is equipped in the sour gas import and is located at buck except the hard intracorporal gas distribution tube of automatically cleaning shell.
A kind of gasification ash water removes the process for dropping turbid device firmly, includes the following steps:
Step 1: to be sent to defecator by pipeline to the buck of three stages of flashing system, pass through addition wadding in defecator
Solidifying medicament makes the grey fractional precipitation of bulky grain go down, and wherein residence time of the buck in defecator is 25-35min；Three stages of flashing
The grey coolant-temperature gage of system are as follows: 70-80 DEG C；
Step 2: it is laggard that the slurry of defecator bottom by slurry outlet and discharging pump enters filters pressing in vacuum press filter
Row processing；
Step 3: the buck in defecator respectively enters ash water tank and buck except hard from clear by supernatant outlet and threeway
Clean unit, buck are intermittent except the working method of hard automatically cleaning unit, therefore what buck was not intake except hard automatically cleaning unit exists
Time, buck is in buck except the residence time in hard automatically cleaning unit is 50-70min；The grey water into ash water tank
The 40-60% for accounting for whole grey water, into the 50-60% of buck whole grey water except the grey water in hard automatically cleaning unit accounts for；
Step 4: it is described due to buck except the working method of hard cleaning apparatus for self be it is intermittent, into buck except hard from clear
Operation in clean unit is divided into two timing, respectively normal timing and reprint scale removal timing, sort run 48- when normal
A reprint scale removal timing is run after 72h, continues to run normal timing after sort run when reprint scale removal；Normal timing packet
It includes into water timing, air inlet timing, reaction timing and draining timing, when reprint scale removal timing includes scale removal timing and rinses reduction
Sequence；
(1) water inlet timing are as follows: buck enters buck by threeway and removes in hard automatically cleaning unit, when the liquid level of buck is more than
When the height of gas distribution tube, starting centrifugal blower enters air inlet timing, and buck goes successively to buck except hard automatically cleaning list at this time
In member, until buck liquid level reaches the top of turnover panel fixed frame, the water inlet timing time is 35-55min；
(2) air inlet timing are as follows: contain the CO of 84%-88% in low-temperature methanol washing tail-gas pipeline2Gas passes through dry method
Desulfurizer, centrifugal blower and sour gas import enter in gas distribution tube, make CO2Gas is contacted with buck, and extra gas is logical
Peracidity gas discharge outlet enters in sour gas general pipeline；The CO2The flow of gas is 80-95m3/ h, CO2The temperature of gas is 30-
40 DEG C, CO2It is 1.5-1.7: 3.6-3.7 that the flow and buck of gas, which remove buck flow-rate ratio in hard automatically cleaning unit,；When air inlet timing
Between be 35-55min；
(3) timing is reacted are as follows: the excessive CO2Gas has been dissolved into buck, forms a large amount of HCO3 -And CO3 2-,
Ca present in above-mentioned anion and buck2+And Mg2+Fouling and attachment on turnover panel blade in conjunction with after；CO2Gas enters sour gas
Body general pipeline, and enter draining timing after scale removal unit stops 70-90min；
(4) timing is drained are as follows: when reacted after sequence, so that the buck after reaction is entered ash water tank (14) by pipeline
Interior, until liquid level when draining need to be reduced to the bottom of turnover panel fixed frame, draining timing is 35-45min；
(5) scale removal timing are as follows: form one layer of dirty piece on sort run 48-72h end blocking blade when normal, start sprocket wheel
Rotary electric machine, sprocket wheel rotary electric machine are rotated by chain-driving sprocket wheel, and sprocket wheel drives several turnover panel rotation cams to revolve by axis
Turn, drives turnover panel swivel-chain to pump while turnover panel rotation cam rotates, energy while turnover panel rotates chain movement
The angle for enough adjusting turnover panel blade makes the friction of the upper surface of scraper plate and turnover panel blade carry out scale removal, scale removal timing runing time 70-
90min；
(6) reduction timing is rinsed are as follows: after scale removal timing, make water in flush box by spray piping to turning over
Spray is rinsed at the top of plate fixed frame；Flushing water and dirty piece are entered by the outlet at bottom that buck removes hard automatically cleaning shell
Roller sieve part；
Step 5: by buck except the buck of hard automatically cleaning unit enters ash water tank, the total hardness in buck exists at this time
450-600mg/L, PH 8.0-8.4, the lower hardness buck come out from hardness removing device are needed and are not mixed except hard buck
It closes, prevents the fluctuation that hardness is excessive, entered in stand-by workshop section after mixing by grey water pump and used；
Step 6: entering in rotary screen described in step 4 into the flushing water of roller sieve part and dirty piece, by dirty piece and
Water separation, the water after separation are entered in detritus tank by separating water out, and the dirty piece after separation enters bucket by solid outlet
Vehicle is simultaneously transported outward；The mesh density of the rotary screen is 1-2.5mm；
Step 7: after roller sieve part end of run, water in flush box by spray piping to the top of rotary screen into
Row rinse spray, flushing water are entered in detritus tank by separating water out.
The present invention for existing gasification ash water hardness high, fouling frequently, easily occur equipment blocking, heat exchanger efficiency decline with
And the problem that operating cost is high, and a kind of gasification ash water is set except turbid device is dropped firmly, by using by way of carbon dioxide
It can be by the existing Ca in buck2+, Mg2+, precipitated with the situation of calcium carbonate, and dirty piece passes through above turnover panel blade
Scraper plate interaction, it is automatic to remove；The exhaust gas for utilizing methanol washing tail-gas tower simultaneously reduces pollution of the gas emptying to environment, rises
To the purpose of the treatment of wastes with processes of wastes against one another；In addition, making to prevent hardness except the buck of hard automatically cleaning unit is mixed with ash water tank buck by buck
Fluctuate it is excessive adverse effect is caused to subsequent workshop section, have simple structure and reasonable design, energy conservation and environmental protection, operating cost is low, can remove
The advantages of going in buck 80% or so hardness, the gasification ash water system stable operation time can be effectively increased.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram of present invention cleaning turnover panel apparatus for eliminating sludge.
Fig. 3 is the positional diagram of sprocket wheel rotary electric machine and sprocket wheel of the present invention.
Fig. 4 is the structural schematic diagram inside turnover panel fixed frame of the present invention.
Fig. 5 is the structural schematic diagram of turnover panel blade of the present invention.
Fig. 6 is the control principle drawing when present invention is automatically controlled using PLC control device.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, this hair of Detailed description of the invention is now compareed
Bright specific embodiment, identical label indicates identical component in the various figures.To make simplified form, in each figure only schematically
Ground indicates part relevant to invention, they do not represent its practical structures as product.
As shown in Fig. 1,2,3,4,5, the present invention removes for a kind of gasification ash water drops turbid device and process, device portion firmly
Point it is connected with defecator 2 including three stages of flashing system 1, three stages of flashing system 1 by ash-water pipeline, the slurry of 2 bottom of defecator
Outlet is connected by discharging pump 16 with vacuum press filter 6, and the supernatant outlet on 2 top of defecator passes through threeway and ash water tank
14 import is connected, and the outlet of ash water tank 14 is connected by grey water pump 15 with stand-by workshop section 7, and the third end of the threeway passes through ash
Water is connected except hard automatically cleaning unit with the import of ash water tank 14；The buck includes buck except hard automatically cleaning except hard automatically cleaning unit
Shell 3, the ash that buck is equipped with sour gas outlet 11 and is connected with the third end of threeway except the top of hard automatically cleaning shell 3
Water inlet 8, buck are connected except the outlet at bottom of hard automatically cleaning shell 3 with roller sieve part, and the buck is except hard automatically cleaning shell 3
Inside is equipped with automatically cleaning turnover panel apparatus for eliminating sludge, and corresponding buck is except on hard automatically cleaning shell 3 in the middle part of cleaning turnover panel apparatus for eliminating sludge
Equipped with sour gas import 12, sour gas import 12 passes through centrifugal blower 5 and dry desulfurization slot 4 and low-temperature methanol washing tail-gas pipe
Road 24 is connected；The sour gas outlet 11 is connected with sour gas general pipeline 33.The roller sieve part includes rotary screen shell
25, rotary screen 26 is equipped with inside rotary screen shell 25, the bottom of shaft screen shell 25 is equipped with separation water out 27, separates water out 27
It is connected by pipeline with detritus tank 17, the following side of shaft screen shell 25 is equipped with solid outlet 28.The cleaning turnover panel scale removal dress
The sprocket wheel rotary electric machine 18 that hard 3 outer upper of automatically cleaning shell is removed including buck is arranged in is set, buck is except in hard automatically cleaning shell 3
Top is equipped with axis 29, and sprocket wheel 31 and several turnover panel rotation cams 23, the active of sprocket wheel rotary electric machine 18 are set on axis
Axis sprocket wheel is connected by chain 30 with sprocket wheel 31；The corresponding position flap fixed frame 22 in 23 lower part of reprint rotation cam, is turned over
The inside of plate fixed frame 22 is equipped with several turnover panel blades 9, and the front end of turnover panel blade 9 is equipped with scraper plate 10, and 9 end of turnover panel blade is logical
It crosses turnover panel blade rotation axis 21 and the inside of turnover panel fixed frame 22 is movably connected, the turnover panel blade 9 in same turnover panel fixed frame 22
Middle part it is connected by turnover panel swivel-chain 20 and corresponding turnover panel rotation cam 23.The turnover panel rotation cam 23 is 4-8,
Turnover panel fixed frame 22 is 4-8, and the turnover panel blade 9 in turnover panel fixed frame 22 is 10-12, and turnover panel blade 9 and scraper plate 10 are fixed
Connection, the length of scraper plate 10 are 7-8cm.Angle between the turnover panel blade 9 and scraper plate 10 is 90 °, turnover panel blade 9 and scraper plate
10 be carbon steel material.The stroke up and down of the turnover panel swivel-chain 20 is 15-25cm.The top of the turnover panel fixed frame 22 and rolling
The top of shaft screen 26 is respectively equipped with spray piping 32, and spray piping is connected with flush box 13 respectively.The stand-by workshop section 7 is full
Water pot is rinsed with hot-water tower circulating water intake, grey water- to-water heat exchanger and lock hopper.It is equipped in the sour gas import 12 and is located at ash
Water is except the gas distribution tube 34 in hard automatically cleaning shell 3.
A kind of gasification ash water removes the process for dropping turbid device firmly, includes the following steps:
Step 1: to be sent to defecator 2 by pipeline to the buck of three stages of flashing system 1, pass through addition in defecator 2
Flocculation medicament makes the grey fractional precipitation of bulky grain go down, and wherein residence time of the buck in defecator 2 is 25-35min；Three-level is dodged
The grey coolant-temperature gage of steaming system 1 are as follows: 70-80 DEG C；
Step 2: the slurry of 2 bottom of defecator enters filters pressing in vacuum press filter 6 by slurry outlet and discharging pump 16
After handled；
Step 3: the buck in defecator 2 respectively enters ash water tank 14 and buck except hard by supernatant outlet and threeway
Automatically cleaning unit, buck except hard automatically cleaning unit working method be it is intermittent, therefore buck except hard automatically cleaning unit exist not into
The time of water, buck is in buck except the residence time in hard automatically cleaning unit is 50-70min；It is described into ash water tank 14
Grey water accounts for the 40-60% of whole grey water, into the 50- of buck whole grey water except the grey water in hard automatically cleaning unit accounts for
60%；
Step 4: it is described due to buck except the working method of hard cleaning apparatus for self be it is intermittent, into buck except hard from clear
Operation in clean unit is divided into two timing, respectively normal timing and reprint scale removal timing, sort run 48- when normal
A reprint scale removal timing is run after 72h, continues to run normal timing after sort run when reprint scale removal；Normal timing packet
It includes into water timing, air inlet timing, reaction timing and draining timing, when reprint scale removal timing includes scale removal timing and rinses reduction
Sequence；
(1) water inlet timing are as follows: buck enters buck by threeway and removes in hard automatically cleaning unit, when the liquid level of buck is more than
When the height of gas distribution tube 34, starting centrifugal blower 5 enters air inlet timing, and buck goes successively to buck except hard automatically cleaning at this time
In unit, until buck liquid level reaches the top of turnover panel fixed frame 22, the water inlet timing time is 35-55min；
(2) air inlet timing are as follows: contain the CO of 84%-88% in low-temperature methanol washing tail-gas pipeline 242Gas passes through dry
Method desulfurizer 4, centrifugal blower 5 and sour gas import 12 enter in gas distribution tube 34, make CO2Gas is contacted with buck, extra
Gas by sour gas outlet 11 enter sour gas general pipeline 33 in；The CO2The flow of gas is 80-95m3/ h, CO2
The temperature of gas is 30-40 DEG C, CO2It is 1.5-1.7: 3.6- that the flow and buck of gas, which remove buck flow-rate ratio in hard automatically cleaning unit,
3.7；The air inlet timing time is 35-55min；
(3) timing is reacted are as follows: the excessive CO2Gas has been dissolved into buck, forms a large amount of HCO3 -And CO3 2-,
Ca present in above-mentioned anion and buck2+And Mg2+Fouling and attachment on turnover panel blade 9 in conjunction with after；CO2Gas enters sour gas
Body general pipeline 33, and enter draining timing after scale removal unit stops 70-90min；
(4) timing is drained are as follows: when reacted after sequence, so that the buck after reaction is entered ash water tank (14) by pipeline
Interior, until liquid level when draining need to be reduced to the bottom of turnover panel fixed frame 22, draining timing is 35-45min；
(5) scale removal timing are as follows: form one layer of dirty piece on sort run 48-72h end blocking blade 9 when normal, start sprocket wheel
Rotary electric machine 18, sprocket wheel rotary electric machine 18 are rotated by chain 30 with movable sprocket 31, and sprocket wheel 31 drives several to turn over by axis 29
Plate rotation cam 23 rotates, and drives turnover panel swivel-chain 20 to pump while turnover panel rotation cam 23 rotates, turnover panel
Swivel-chain 20 can adjust the angle of turnover panel blade 9 while moving, carry out the friction of the upper surface of scraper plate 10 and turnover panel blade 9
Scale removal, scale removal timing runing time 70-90min；
(6) reduction timing is rinsed are as follows: after scale removal timing, the water in flush box 13 is made to pass through spray piping 32
Spray is rinsed to the top of turnover panel fixed frame 22；Flushing water and dirty piece remove the bottom of hard automatically cleaning shell 3 by buck
Outlet enters roller sieve part；
Step 5: by buck except the buck of hard automatically cleaning unit enters ash water tank 14, the total hardness in buck exists at this time
450-600mg/L, PH 8.0-8.4, the lower hardness buck come out from hardness removing device are needed and are not mixed except hard buck
It closes, prevents the fluctuation that hardness is excessive, entered in stand-by workshop section 7 after mixing by grey water pump 15 and used；
Step 6: enter in rotary screen 26 described in step 4 into the flushing water of roller sieve part and dirty piece, by dirty piece
It is separated with water, the water after separation is entered in detritus tank 17 by separation water out 27, and the dirty piece after separation passes through solid outlet
28 enter trolley and transport outward；The mesh density of the rotary screen 26 is 1-2.5mm；
Step 7: after roller sieve part end of run, the water in flush box 13 is by spray piping 32 to rotary screen 26
Top is rinsed spray, and flushing water is entered in detritus tank 17 by separation water out 27.
As shown in fig. 6, in the present invention buck except hard cleaning apparatus for self working method be it is intermittent, buck remove hard automatically cleaning
The timing of device can control for manual control or PLC control device 35；The supernatant outlet on 2 top of defecator passes through three
It is logical to be connected with the grey water inlet 8 of ash water tank 14, it is equipped with buck imported valve 36 between the third end of threeway and grey water inlet 8, from
Heart blower 5 is equipped with centrifugal blower control switch 37, and acidity is equipped between sour gas outlet 11 and sour gas general pipeline 33
Gas exhaust valve door 38, buck, which removes, is equipped with buck discharge valve 39, sprocket wheel between hard automatically cleaning unit and the import of ash water tank 14
Rotary electric machine 18 is equipped with sprocket wheel rotary electric machine control switch 40, and rinse water valve is equipped between flush box 13 and spray piping 32
Door 41, the flushing water valve 41 can control two spray pipings 32 for total valve and spray water, while may be two points
Valve controls corresponding spray piping 32 and sprays water；It should be noted that above-mentioned valve can be manual modulation valve door, it can also be with
For the self-adjusting valve of PLC control device control；The centrifugal blower control switch 37 and sprocket wheel rotary electric machine control switch 40 can
Think that manually controlling may be that PLC control device 35 controls；It, can be according to the time requirement of each timing when using manually controlling
Manually control each valve and each switch, when using PLC control device 35 control when, the signal input part of PLC control device 35 with
Clock module 19 be connected, the signal output end of PLC control device respectively with buck imported valve 36, centrifugal blower control switch
37, sour gas discharge valve 38,41 phase of buck discharge valve 39, sprocket wheel rotary electric machine control switch 40 and flushing water valve
Even；For its control process is in such a way that PLC control device 35 controls: when entering water inlet timing, PLC control device control ash
Water inlet valve 36 is opened, and flooding time is generally 35-55min, and after flooding time, PLC control device 35 controls buck
Imported valve 36 is closed, and air inlet timing, the control centrifugation wind of PLC control device 35 are entered while buck imported valve 36 is closed
Machine control switch 37 is opened, and the air inlet timing time is 35-55min；After air inlet timing, the control centrifugation of PLC control device 35
Air-blower control switch 37 is closed, and starts to react timing, and the time for reacting timing is 70-90min, when reacted after sequence, into
Enter and drain timing, PLC control device 35 controls sour gas discharge valve 38 and buck discharge valve 39 is opened, sour gas
Into in sour gas general pipeline 33, the buck after reaction enters in ash water tank 14, is 35- the time required to the discharge timing
45min, time span needed for timing are greater than the efflux time of sour gas, close sour gas row after sour gas discharge
Buck discharge valve 39 is closed after buck discharge in valve 38 out, and normal timing above-mentioned at this time terminates；Sort run when normal
A reprint scale removal timing is run after 48-72h, i.e., when PLC control device 35 controls sour gas discharge valve 38 and buck
Discharge valve 39 enters scale removal timing after closing, 35 Quality Initiative wheel of PLC control device rotates motor control switch 40 and opens, scale removal
Timing runing time 70-90min, after scale removal timing runing time, the 35 Quality Initiative wheel rotary electric machine control of PLC control device
The closing of switch 40 is made, and opens flushing water valve 41 into reduction timing is rinsed, after rinsing reduction timing, is reopened
Normal timing.Heretofore described sprocket wheel rotary electric machine 18 is clockwise and anticlockwise motor.
In order to more clearly explain the present invention, it is further described now in conjunction with specific embodiment.It is specific real
Under applying for example:
Embodiment one
A kind of gasification ash water except dropping turbid device firmly, including three stages of flashing system 1, three stages of flashing system 1 pass through ash-water pipeline
It is connected with defecator 2, the slurry outlet of 2 bottom of defecator is connected by discharging pump 16 with vacuum press filter 6, the defecator 2
The supernatant outlet on top is connected by threeway with the import of ash water tank 14, and the outlet of ash water tank 14 is by grey water pump 15 and for use
Workshop section 7 is connected, and the third end of the threeway is by buck except hard automatically cleaning unit is connected with the import of ash water tank 14；The buck
Except hard automatically cleaning unit includes buck except hard automatically cleaning shell 3, buck is arranged except the top of hard automatically cleaning shell 3 equipped with sour gas
Outlet 11 and the grey water inlet 8 being connected with the third end of threeway, buck remove the outlet at bottom and rotary screen of hard automatically cleaning shell 3
Portion is connected, and the buck is equipped with automatically cleaning turnover panel apparatus for eliminating sludge except the inside of hard automatically cleaning shell 3, cleans in turnover panel apparatus for eliminating sludge
The corresponding buck in portion is equipped with sour gas import 12 except hard automatically cleaning shell 3, and sour gas import 12 passes through centrifugal blower 5
It is connected with dry desulfurization slot 4 with low-temperature methanol washing tail-gas pipeline 24；The sour gas outlet 11 and sour gas general pipeline 33
It is connected.The roller sieve part includes rotary screen shell 25, is equipped with rotary screen 26, the bottom of shaft screen shell 25 inside rotary screen shell 25
Portion is equipped with separation water out 27, and separation water out 27 is connected by pipeline with detritus tank 17, and the following side of shaft screen shell 25 is equipped with
Solid outlet 28.The cleaning turnover panel apparatus for eliminating sludge includes the sprocket wheel that buck is arranged in and removes hard 3 outer upper of automatically cleaning shell
Rotary electric machine 18, buck are equipped with axis 29 except hard 3 internal upper part of automatically cleaning shell, sprocket wheel 31 and several turnover panels are set on axis
The driving shaft sprocket wheel of rotation cam 23, sprocket wheel rotary electric machine 18 is connected by chain 30 with sprocket wheel 31；Under reprint rotation cam 23
The inside of the corresponding position flap fixed frame 22 in portion, turnover panel fixed frame 22 is equipped with several turnover panel blades 9, turnover panel blade 9
Front end be equipped with scraper plate 10,9 end of turnover panel blade passes through the inside activity phase of turnover panel blade rotation axis 21 and turnover panel fixed frame 22
Even, the middle part of the turnover panel blade 9 in same turnover panel fixed frame 22 passes through turnover panel swivel-chain 20 and corresponding turnover panel rotation cam
23 are connected.The turnover panel rotation cam 23 is 4-8, and turnover panel fixed frame 22 is 4-8, the turnover panel blade in turnover panel fixed frame 22
9 be 10-12, and turnover panel blade 9 is fixedly connected with scraper plate 10, and the length of scraper plate 10 is 7-8cm.The turnover panel blade 9 and scraper plate
Angle between 10 is 90 °, and turnover panel blade 9 and scraper plate 10 are carbon steel material.The stroke up and down of the turnover panel swivel-chain 20 is
15-25cm.The top of the turnover panel fixed frame 22 and the top of rotary screen 26 are respectively equipped with spray piping 32, spray piping difference
It is connected with flush box 13.The stand-by workshop section 7 is saturated hot-water tower circulating water intake, grey water- to-water heat exchanger and lock hopper flushing water
Tank.It is equipped in the sour gas import 12 and is located at buck except the gas distribution tube 34 in hard automatically cleaning shell 3.
A kind of gasification ash water removes the process for dropping turbid device firmly, includes the following steps:
Step 1: to be sent to defecator 2 by pipeline to the buck of three stages of flashing system 1, pass through addition in defecator 2
Flocculation medicament makes the grey fractional precipitation of bulky grain go down, and wherein residence time of the buck in defecator 2 is 25min；Three stages of flashing
The grey coolant-temperature gage of system 1 are as follows: 70 DEG C；
Step 2: the slurry of 2 bottom of defecator enters filters pressing in vacuum press filter 6 by slurry outlet and discharging pump 16
After handled；
Step 3: the buck in defecator 2 respectively enters ash water tank 14 and buck except hard by supernatant outlet and threeway
Automatically cleaning unit, buck except hard automatically cleaning unit working method be it is intermittent, therefore buck except hard automatically cleaning unit exist not into
The time of water, buck is in buck except the residence time in hard automatically cleaning unit is 50min；The buck into ash water tank 14
Amount accounts for the 40-60% of whole grey water, into the 50- of buck whole grey water except the grey water in hard automatically cleaning unit accounts for
60%；
Step 4: it is described due to buck except the working method of hard cleaning apparatus for self be it is intermittent, into buck except hard from clear
Operation in clean unit is divided into two timing, respectively normal timing and reprint scale removal timing, when normal after sort run 48h
A reprint scale removal timing is run, continues to run normal timing after sort run when reprint scale removal；Normal timing include into
Water timing, air inlet timing, reaction timing and draining timing, reprint scale removal timing include scale removal timing and flushing reduction timing；
(1) water inlet timing are as follows: buck enters buck by threeway and removes in hard automatically cleaning unit, when the liquid level of buck is more than
When the height of gas distribution tube 34, starting centrifugal blower 5 enters air inlet timing, and buck goes successively to buck except hard automatically cleaning at this time
In unit, until buck liquid level reaches the top of turnover panel fixed frame 22, the water inlet timing time is 35min；
(2) air inlet timing are as follows: contain the CO of 84%-88% in low-temperature methanol washing tail-gas pipeline 242Gas passes through dry
Method desulfurizer 4, centrifugal blower 5 and sour gas import 12 enter in gas distribution tube 34, make CO2Gas is contacted with buck, extra
Gas by sour gas outlet 11 enter sour gas general pipeline 33 in；The CO2The flow of gas is 80m3/ h, CO2Gas
Temperature is 30 DEG C, CO2It is 1.5: 3.7 that the flow and buck of gas, which remove buck flow-rate ratio in hard automatically cleaning unit,；The air inlet timing time
For 35min；
(3) timing is reacted are as follows: the excessive CO2Gas has been dissolved into buck, forms a large amount of HCO3 -And CO3 2-,
Ca present in above-mentioned anion and buck2+And Mg2+Fouling and attachment on turnover panel blade 9 in conjunction with after；CO2Gas enters sour gas
Body general pipeline 33, and enter draining timing after scale removal unit stops 70min；
(4) timing is drained are as follows: when reacted after sequence, so that the buck after reaction is entered ash water tank (14) by pipeline
Interior, until liquid level when draining need to be reduced to the bottom of turnover panel fixed frame 22, draining timing is 35min；
(5) scale removal timing are as follows: form one layer of dirty piece on sort run 48-72h end blocking blade 9 when normal, start sprocket wheel
Rotary electric machine 18, sprocket wheel rotary electric machine 18 are rotated by chain 30 with movable sprocket 31, and sprocket wheel 31 drives several to turn over by axis 29
Plate rotation cam 23 rotates, and drives turnover panel swivel-chain 20 to pump while turnover panel rotation cam 23 rotates, turnover panel
Swivel-chain 20 can adjust the angle of turnover panel blade 9 while moving, carry out the friction of the upper surface of scraper plate 10 and turnover panel blade 9
Scale removal, scale removal timing runing time 70min；
(6) reduction timing is rinsed are as follows: after scale removal timing, the water in flush box 13 is made to pass through spray piping 32
Spray is rinsed to the top of turnover panel fixed frame 22；Flushing water and dirty piece remove the bottom of hard automatically cleaning shell 3 by buck
Outlet enters roller sieve part；
Step 5: by buck except the buck of hard automatically cleaning unit enters ash water tank 14, the total hardness in buck exists at this time
450mg/L, PH 8.0, the lower hardness buck come out from hardness removing device need, except hard buck is mixed, not prevent with hard
Big fluctuation is spent, is entered in stand-by workshop section 7 after mixing by grey water pump 15 and is used；
Step 6: enter in rotary screen 26 described in step 4 into the flushing water of roller sieve part and dirty piece, by dirty piece
It is separated with water, the water after separation is entered in detritus tank 17 by separation water out 27, and the dirty piece after separation passes through solid outlet
28 enter trolley and transport outward；The mesh density of the rotary screen 26 is 1mm；
Step 7: after roller sieve part end of run, the water in flush box 13 is by spray piping 32 to rotary screen 26
Top is rinsed spray, and flushing water is entered in detritus tank 17 by separation water out 27.
Embodiment two
A kind of gasification ash water except dropping turbid device firmly, including three stages of flashing system 1, three stages of flashing system 1 pass through ash-water pipeline
It is connected with defecator 2, the slurry outlet of 2 bottom of defecator is connected by discharging pump 16 with vacuum press filter 6, the defecator 2
The supernatant outlet on top is connected by threeway with the import of ash water tank 14, and the outlet of ash water tank 14 is by grey water pump 15 and for use
Workshop section 7 is connected, and the third end of the threeway is by buck except hard automatically cleaning unit is connected with the import of ash water tank 14；The buck
Except hard automatically cleaning unit includes buck except hard automatically cleaning shell 3, buck is arranged except the top of hard automatically cleaning shell 3 equipped with sour gas
Outlet 11 and the grey water inlet 8 being connected with the third end of threeway, buck remove the outlet at bottom and rotary screen of hard automatically cleaning shell 3
Portion is connected, and the buck is equipped with automatically cleaning turnover panel apparatus for eliminating sludge except the inside of hard automatically cleaning shell 3, cleans in turnover panel apparatus for eliminating sludge
The corresponding buck in portion is equipped with sour gas import 12 except hard automatically cleaning shell 3, and sour gas import 12 passes through centrifugal blower 5
It is connected with dry desulfurization slot 4 with low-temperature methanol washing tail-gas pipeline 24；The sour gas outlet 11 and sour gas general pipeline 33
It is connected.The roller sieve part includes rotary screen shell 25, is equipped with rotary screen 26, the bottom of shaft screen shell 25 inside rotary screen shell 25
Portion is equipped with separation water out 27, and separation water out 27 is connected by pipeline with detritus tank 17, and the following side of shaft screen shell 25 is equipped with
Solid outlet 28.The cleaning turnover panel apparatus for eliminating sludge includes the sprocket wheel that buck is arranged in and removes hard 3 outer upper of automatically cleaning shell
Rotary electric machine 18, buck are equipped with axis 29 except hard 3 internal upper part of automatically cleaning shell, sprocket wheel 31 and several turnover panels are set on axis
The driving shaft sprocket wheel of rotation cam 23, sprocket wheel rotary electric machine 18 is connected by chain 30 with sprocket wheel 31；Under reprint rotation cam 23
The inside of the corresponding position flap fixed frame 22 in portion, turnover panel fixed frame 22 is equipped with several turnover panel blades 9, turnover panel blade 9
Front end be equipped with scraper plate 10,9 end of turnover panel blade passes through the inside activity phase of turnover panel blade rotation axis 21 and turnover panel fixed frame 22
Even, the middle part of the turnover panel blade 9 in same turnover panel fixed frame 22 passes through turnover panel swivel-chain 20 and corresponding turnover panel rotation cam
23 are connected.The turnover panel rotation cam 23 is 4-8, and turnover panel fixed frame 22 is 4-8, the turnover panel blade in turnover panel fixed frame 22
9 be 10-12, and turnover panel blade 9 is fixedly connected with scraper plate 10, and the length of scraper plate 10 is 7-8cm.The turnover panel blade 9 and scraper plate
Angle between 10 is 90 °, and turnover panel blade 9 and scraper plate 10 are carbon steel material.The stroke up and down of the turnover panel swivel-chain 20 is
15-25cm.The top of the turnover panel fixed frame 22 and the top of rotary screen 26 are respectively equipped with spray piping 32, spray piping difference
It is connected with flush box 13.The stand-by workshop section 7 is saturated hot-water tower circulating water intake, grey water- to-water heat exchanger and lock hopper flushing water
Tank.It is equipped in the sour gas import 12 and is located at buck except the gas distribution tube 34 in hard automatically cleaning shell 3.
A kind of gasification ash water removes the process for dropping turbid device firmly, includes the following steps:
Step 1: to be sent to defecator 2 by pipeline to the buck of three stages of flashing system 1, pass through addition in defecator 2
Flocculation medicament makes the grey fractional precipitation of bulky grain go down, and wherein residence time of the buck in defecator 2 is 35min；Three stages of flashing
The grey coolant-temperature gage of system 1 are as follows: 80 DEG C；
Step 2: the slurry of 2 bottom of defecator enters filters pressing in vacuum press filter 6 by slurry outlet and discharging pump 16
After handled；
Step 3: the buck in defecator 2 respectively enters ash water tank 14 and buck except hard by supernatant outlet and threeway
Automatically cleaning unit, buck except hard automatically cleaning unit working method be it is intermittent, therefore buck except hard automatically cleaning unit exist not into
The time of water, buck is in buck except the residence time in hard automatically cleaning unit is 70min；The buck into ash water tank 14
Amount accounts for the 40-60% of whole grey water, into the 50- of buck whole grey water except the grey water in hard automatically cleaning unit accounts for
60%；
Step 4: it is described due to buck except the working method of hard cleaning apparatus for self be it is intermittent, into buck except hard from clear
Operation in clean unit is divided into two timing, respectively normal timing and reprint scale removal timing, when normal after sort run 72h
A reprint scale removal timing is run, continues to run normal timing after sort run when reprint scale removal；Normal timing include into
Water timing, air inlet timing, reaction timing and draining timing, reprint scale removal timing include scale removal timing and flushing reduction timing；
(1) water inlet timing are as follows: buck enters buck by threeway and removes in hard automatically cleaning unit, when the liquid level of buck is more than
When the height of gas distribution tube 34, starting centrifugal blower 5 enters air inlet timing, and buck goes successively to buck except hard automatically cleaning at this time
In unit, until buck liquid level reaches the top of turnover panel fixed frame 22, the water inlet timing time is 55min；
(2) air inlet timing are as follows: contain the CO of 84%-88% in low-temperature methanol washing tail-gas pipeline 242Gas passes through dry
Method desulfurizer 4, centrifugal blower 5 and sour gas import 12 enter in gas distribution tube 34, make CO2Gas is contacted with buck, extra
Gas by sour gas outlet 11 enter sour gas general pipeline 33 in；The CO2The flow of gas is 95m3/ h, CO2Gas
Temperature is 40 DEG C, CO2It is 1.6: 3.6 that the flow and buck of gas, which remove buck flow-rate ratio in hard automatically cleaning unit,；The air inlet timing time
For 55min；
(3) timing is reacted are as follows: the excessive CO2Gas has been dissolved into buck, forms a large amount of HCO3 -And CO3 2-,
Ca present in above-mentioned anion and buck2+And Mg2+Fouling and attachment on turnover panel blade 9 in conjunction with after；CO2Gas enters sour gas
Body general pipeline 33, and enter draining timing after scale removal unit stops 90min；
(4) timing is drained are as follows: when reacted after sequence, so that the buck after reaction is entered ash water tank (14) by pipeline
Interior, until liquid level when draining need to be reduced to the bottom of turnover panel fixed frame 22, draining timing is 45min；
(5) scale removal timing are as follows: form one layer of dirty piece on sort run 48-72h end blocking blade 9 when normal, start sprocket wheel
Rotary electric machine 18, sprocket wheel rotary electric machine 18 are rotated by chain 30 with movable sprocket 31, and sprocket wheel 31 drives several to turn over by axis 29
Plate rotation cam 23 rotates, and drives turnover panel swivel-chain 20 to pump while turnover panel rotation cam 23 rotates, turnover panel
Swivel-chain 20 can adjust the angle of turnover panel blade 9 while moving, carry out the friction of the upper surface of scraper plate 10 and turnover panel blade 9
Scale removal, scale removal timing runing time 90min；
(6) reduction timing is rinsed are as follows: after scale removal timing, the water in flush box 13 is made to pass through spray piping 32
Spray is rinsed to the top of turnover panel fixed frame 22；Flushing water and dirty piece remove the bottom of hard automatically cleaning shell 3 by buck
Outlet enters roller sieve part；
Step 5: by buck except the buck of hard automatically cleaning unit enters ash water tank 14, the total hardness in buck exists at this time
600mg/L, PH 8.4, the lower hardness buck come out from hardness removing device need, except hard buck is mixed, not prevent with hard
Big fluctuation is spent, is entered in stand-by workshop section 7 after mixing by grey water pump 15 and is used；
Step 6: enter in rotary screen 26 described in step 4 into the flushing water of roller sieve part and dirty piece, by dirty piece
It is separated with water, the water after separation is entered in detritus tank 17 by separation water out 27, and the dirty piece after separation passes through solid outlet
28 enter trolley and transport outward；The mesh density of the rotary screen 26 is 2.5mm；
Step 7: after roller sieve part end of run, the water in flush box 13 is by spray piping 32 to rotary screen 26
Top is rinsed spray, and flushing water is entered in detritus tank 17 by separation water out 27.
Embodiment three
A kind of gasification ash water except dropping turbid device firmly, including three stages of flashing system 1, three stages of flashing system 1 pass through ash-water pipeline
It is connected with defecator 2, the slurry outlet of 2 bottom of defecator is connected by discharging pump 16 with vacuum press filter 6, the defecator 2
The supernatant outlet on top is connected by threeway with the import of ash water tank 14, and the outlet of ash water tank 14 is by grey water pump 15 and for use
Workshop section 7 is connected, and the third end of the threeway is by buck except hard automatically cleaning unit is connected with the import of ash water tank 14；The buck
Except hard automatically cleaning unit includes buck except hard automatically cleaning shell 3, buck is arranged except the top of hard automatically cleaning shell 3 equipped with sour gas
Outlet 11 and the grey water inlet 8 being connected with the third end of threeway, buck remove the outlet at bottom and rotary screen of hard automatically cleaning shell 3
Portion is connected, and the buck is equipped with automatically cleaning turnover panel apparatus for eliminating sludge except the inside of hard automatically cleaning shell 3, cleans in turnover panel apparatus for eliminating sludge
The corresponding buck in portion is equipped with sour gas import 12 except hard automatically cleaning shell 3, and sour gas import 12 passes through centrifugal blower 5
It is connected with dry desulfurization slot 4 with low-temperature methanol washing tail-gas pipeline 24；The sour gas outlet 11 and sour gas general pipeline 33
It is connected.The roller sieve part includes rotary screen shell 25, is equipped with rotary screen 26, the bottom of shaft screen shell 25 inside rotary screen shell 25
Portion is equipped with separation water out 27, and separation water out 27 is connected by pipeline with detritus tank 17, and the following side of shaft screen shell 25 is equipped with
Solid outlet 28.The cleaning turnover panel apparatus for eliminating sludge includes the sprocket wheel that buck is arranged in and removes hard 3 outer upper of automatically cleaning shell
Rotary electric machine 18, buck are equipped with axis 29 except hard 3 internal upper part of automatically cleaning shell, sprocket wheel 31 and several turnover panels are set on axis
The driving shaft sprocket wheel of rotation cam 23, sprocket wheel rotary electric machine 18 is connected by chain 30 with sprocket wheel 31；Under reprint rotation cam 23
The inside of the corresponding position flap fixed frame 22 in portion, turnover panel fixed frame 22 is equipped with several turnover panel blades 9, turnover panel blade 9
Front end be equipped with scraper plate 10,9 end of turnover panel blade passes through the inside activity phase of turnover panel blade rotation axis 21 and turnover panel fixed frame 22
Even, the middle part of the turnover panel blade 9 in same turnover panel fixed frame 22 passes through turnover panel swivel-chain 20 and corresponding turnover panel rotation cam
23 are connected.The turnover panel rotation cam 23 is 4-8, and turnover panel fixed frame 22 is 4-8, the turnover panel blade in turnover panel fixed frame 22
9 be 10-12, and turnover panel blade 9 is fixedly connected with scraper plate 10, and the length of scraper plate 10 is 7-8cm.The turnover panel blade 9 and scraper plate
Angle between 10 is 90 °, and turnover panel blade 9 and scraper plate 10 are carbon steel material.The stroke up and down of the turnover panel swivel-chain 20 is
15-25cm.The top of the turnover panel fixed frame 22 and the top of rotary screen 26 are respectively equipped with spray piping 32, spray piping difference
It is connected with flush box 13.The stand-by workshop section 7 is saturated hot-water tower circulating water intake, grey water- to-water heat exchanger and lock hopper flushing water
Tank.It is equipped in the sour gas import 12 and is located at buck except the gas distribution tube 34 in hard automatically cleaning shell 3.
A kind of gasification ash water removes the process for dropping turbid device firmly, includes the following steps:
Step 1: to be sent to defecator 2 by pipeline to the buck of three stages of flashing system 1, pass through addition in defecator 2
Flocculation medicament makes the grey fractional precipitation of bulky grain go down, and wherein residence time of the buck in defecator 2 is 30Min；Three stages of flashing
The grey coolant-temperature gage of system 1 are as follows: 75 DEG C；
Step 2: the slurry of 2 bottom of defecator enters filters pressing in vacuum press filter 6 by slurry outlet and discharging pump 16
After handled；
Step 3: the buck in defecator 2 respectively enters ash water tank 14 and buck except hard by supernatant outlet and threeway
Automatically cleaning unit, buck except hard automatically cleaning unit working method be it is intermittent, therefore buck except hard automatically cleaning unit exist not into
The time of water, buck is in buck except the residence time in hard automatically cleaning unit is 60min；The buck into ash water tank 14
Amount accounts for the 40-60% of whole grey water, into the 50- of buck whole grey water except the grey water in hard automatically cleaning unit accounts for
60%；
Step 4: it is described due to buck except the working method of hard cleaning apparatus for self be it is intermittent, into buck except hard from clear
Operation in clean unit is divided into two timing, respectively normal timing and reprint scale removal timing, when normal after sort run 60h
A reprint scale removal timing is run, continues to run normal timing after sort run when reprint scale removal；Normal timing include into
Water timing, air inlet timing, reaction timing and draining timing, reprint scale removal timing include scale removal timing and flushing reduction timing；
(1) water inlet timing are as follows: buck enters buck by threeway and removes in hard automatically cleaning unit, when the liquid level of buck is more than
When the height of gas distribution tube 34, starting centrifugal blower 5 enters air inlet timing, and buck goes successively to buck except hard automatically cleaning at this time
In unit, until buck liquid level reaches the top of turnover panel fixed frame 22, the water inlet timing time is 45min；
(2) air inlet timing are as follows: contain the CO of 84%-88% in low-temperature methanol washing tail-gas pipeline 242Gas passes through dry
Method desulfurizer 4, centrifugal blower 5 and sour gas import 12 enter in gas distribution tube 34, make CO2Gas is contacted with buck, extra
Gas by sour gas outlet 11 enter sour gas general pipeline 33 in；The CO2The flow of gas is 88m3/ h, CO2Gas
Temperature is 35 DEG C, CO2It is 1.7: 3.65 that the flow and buck of gas, which remove buck flow-rate ratio in hard automatically cleaning unit,；The air inlet timing time
For 45min；
(3) timing is reacted are as follows: the excessive CO2Gas has been dissolved into buck, forms a large amount of HCO3 -And CO3 2-,
Ca present in above-mentioned anion and buck2+And Mg2+Fouling and attachment on turnover panel blade 9 in conjunction with after；CO2Gas enters sour gas
Body general pipeline 33, and enter draining timing after scale removal unit stops 80min；
(4) timing is drained are as follows: when reacted after sequence, so that the buck after reaction is entered ash water tank (14) by pipeline
Interior, until liquid level when draining need to be reduced to the bottom of turnover panel fixed frame 22, draining timing is 40min；
(5) scale removal timing are as follows: form one layer of dirty piece on sort run 48-72h end blocking blade 9 when normal, start sprocket wheel
Rotary electric machine 18, sprocket wheel rotary electric machine 18 are rotated by chain 30 with movable sprocket 31, and sprocket wheel 31 drives several to turn over by axis 29
Plate rotation cam 23 rotates, and drives turnover panel swivel-chain 20 to pump while turnover panel rotation cam 23 rotates, turnover panel
Swivel-chain 20 can adjust the angle of turnover panel blade 9 while moving, carry out the friction of the upper surface of scraper plate 10 and turnover panel blade 9
Scale removal, scale removal timing runing time 80min；
(6) reduction timing is rinsed are as follows: after scale removal timing, the water in flush box 13 is made to pass through spray piping 32
Spray is rinsed to the top of turnover panel fixed frame 22；Flushing water and dirty piece remove the bottom of hard automatically cleaning shell 3 by buck
Outlet enters roller sieve part；
Step 5: by buck except the buck of hard automatically cleaning unit enters ash water tank 14, the total hardness in buck exists at this time
525mg/L, PH 8.2, the lower hardness buck come out from hardness removing device need, except hard buck is mixed, not prevent with hard
Big fluctuation is spent, is entered in stand-by workshop section 7 after mixing by grey water pump 15 and is used；
Step 6: enter in rotary screen 26 described in step 4 into the flushing water of roller sieve part and dirty piece, by dirty piece
It is separated with water, the water after separation is entered in detritus tank 17 by separation water out 27, and the dirty piece after separation passes through solid outlet
28 enter trolley and transport outward；The mesh density of the rotary screen 26 is 1.75mm；
Step 7: after roller sieve part end of run, the water in flush box 13 is by spray piping 32 to rotary screen 26
Top is rinsed spray, and flushing water is entered in detritus tank 17 by separation water out 27.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appending claims and equivalents circle
It is fixed.
Claims (10)
- It should include three stages of flashing system (1), three stages of flashing system except turbid device is dropped firmly 1. a kind of gasification ash water except turbid device is dropped firmly (1) it is connected by ash-water pipeline with defecator (2), the slurry outlet of defecator (2) bottom passes through discharging pump (16) and vacuum pressure Filter (6) is connected, it is characterised in that: the supernatant outlet on defecator (2) top by threeway and ash water tank (14) into Mouth is connected, and the outlet of ash water tank (14) is connected by grey water pump (15) with stand-by workshop section (7), and the third end of the threeway passes through ash Water is connected except hard automatically cleaning unit with the import of ash water tank (14)；The buck includes buck except hard automatically cleaning shell (3) except hard automatically cleaning unit, and buck removes the top of hard automatically cleaning shell (3) The grey water inlet (8) that portion is equipped with sour gas outlet (11) and is connected with the third end of threeway, buck remove hard automatically cleaning shell The outlet at bottom of body (3) is connected with roller sieve part, and the buck is removed except the inside of hard automatically cleaning shell (3) is equipped with automatically cleaning turnover panel Dirty device, the corresponding buck in cleaning turnover panel apparatus for eliminating sludge middle part are equipped with sour gas import except hard automatically cleaning shell (3) (12), sour gas import (12) passes through centrifugal blower (5) and dry desulfurization slot (4) and low-temperature methanol washing tail-gas pipeline (24) phase Even；The sour gas outlet (11) is connected with sour gas general pipeline (33).
- 2. a kind of gasification ash water according to claim 1 except dropping turbid device firmly, it is characterised in that: the roller sieve part includes Rotary screen shell (25), rotary screen shell (25) is internal to be equipped with rotary screen (26), and the bottom of shaft screen shell (25) is equipped with separation water It exports (27), separation water out (27) is connected by pipeline with detritus tank (17), and the following side of shaft screen shell (25) is equipped with solid Discharge port (28).
- 3. a kind of gasification ash water according to claim 1 removes drops turbid device firmly, it is characterised in that: the cleaning turnover panel scale removal Device includes the sprocket wheel rotary electric machine (18) that setting removes hard automatically cleaning shell (3) outer upper in buck, and buck removes hard automatically cleaning Shell (3) internal upper part is equipped with axis (29), and sprocket wheel (31) and several turnover panel rotation cams (23), chain rotation are set on axis The driving shaft sprocket wheel of dynamic motor (18) is connected by chain (30) with sprocket wheel (31)；The corresponding position flap fixed frame (22) in reprint rotation cam (23) lower part, the inside of turnover panel fixed frame (22) is equipped with The front end of several turnover panel blades (9), turnover panel blade (9) is equipped with scraper plate (10), and turnover panel blade (9) end is turned by turnover panel blade It is movably connected on the inside of moving axis (21) and turnover panel fixed frame (22), in the turnover panel blade (9) in same turnover panel fixed frame (22) Portion is connected by turnover panel swivel-chain (20) with corresponding turnover panel rotation cam (23).
- 4. a kind of gasification ash water according to claim 3 removes drops turbid device firmly, it is characterised in that: the turnover panel rotation cam It (23) is 4-8, turnover panel fixed frame (22) is 4-8, and the turnover panel blade (9) in turnover panel fixed frame (22) is 10-12, turnover panel Blade (9) is fixedly connected with scraper plate (10), and the length of scraper plate (10) is 7-8cm.
- 5. a kind of gasification ash water according to claim 3 removes drops turbid device firmly, it is characterised in that: the turnover panel blade (9) Angle between scraper plate (10) is 90 °, and turnover panel blade (9) and scraper plate (10) are carbon steel material.
- 6. a kind of gasification ash water according to claim 3 removes drops turbid device firmly, it is characterised in that: the turnover panel swivel-chain (20) stroke up and down is 15-25cm.
- 7. a kind of gasification ash water according to claim 3 removes drops turbid device firmly, it is characterised in that: the turnover panel fixed frame (22) be respectively equipped with spray piping (32) at the top of top and rotary screen (26), spray piping respectively with flush box (13) phase Even.
- 8. a kind of gasification ash water according to claim 1 removes drops turbid device firmly, it is characterised in that: the stand-by workshop section (7) Water pot is rinsed for saturated hot-water tower circulating water intake, grey water- to-water heat exchanger and lock hopper.
- 9. a kind of gasification ash water according to claim 1 removes drops turbid device firmly, it is characterised in that: the sour gas import (12) it is equipped on and is located at buck except the gas distribution tube (34) in hard automatically cleaning shell (3).
- 10. a kind of gasification ash water as claimed in claims 1-9 removes the process for dropping turbid device firmly, it is characterised in that: the work Process includes the following steps:Step 1: to be sent to defecator (2) by pipeline to the buck of three stages of flashing system (1), by adding in defecator (2) Add flocculation medicament that the grey fractional precipitation of bulky grain is made down, wherein residence time of the buck in defecator (2) is 25-35min；Three The grey coolant-temperature gage of grade flash system (1) are as follows: 70-80 DEG C；Step 2: the slurry of defecator (2) bottom enters pressure in vacuum press filter (6) by slurry outlet and discharging pump (16) It is handled after filter；Step 3: the buck in defecator (2) respectively enters ash water tank (14) and buck except hard by supernatant outlet and threeway Automatically cleaning unit, buck except hard automatically cleaning unit working method be it is intermittent, therefore buck except hard automatically cleaning unit exist not into The time of water, buck is in buck except the residence time in hard automatically cleaning unit is 50-70min；It is described to enter in ash water tank (14) Grey water account for the 40-60% of whole grey water, into buck except the grey water in hard automatically cleaning unit accounts for whole grey water 50-60%；Step 4: it is described due to buck except hard cleaning apparatus for self working method be it is intermittent, into buck remove hard automatically cleaning list Operation in member is divided into two timing, respectively normal timing and reprint scale removal timing, when normal after sort run 48-72h A reprint scale removal timing is run, continues to run normal timing after sort run when reprint scale removal；Normal timing include into Water timing, air inlet timing, reaction timing and draining timing, reprint scale removal timing include scale removal timing and flushing reduction timing；(1) water inlet timing are as follows: buck enters buck by threeway and removes in hard automatically cleaning unit, when the liquid level of buck is more than gas When the height of distributor pipe (34), starting centrifugal blower (5) enters air inlet timing, and buck goes successively to buck except hard automatically cleaning at this time In unit, until buck liquid level reaches the top of turnover panel fixed frame (22), the water inlet timing time is 35-55min；(2) air inlet timing are as follows: from the CO containing 84%-88% in low-temperature methanol washing tail-gas pipeline (24)2Gas passes through dry method Desulfurizer (4), centrifugal blower (5) and sour gas import (12) enter in gas distribution tube (34), make CO2Gas connects with buck Touching, extra gas are entered in sour gas general pipeline (33) by sour gas outlet (11)；The CO2The flow of gas is 80-95m3/ h, CO2The temperature of gas is 30-40 DEG C, CO2The flow of gas removes buck flow-rate ratio in hard automatically cleaning unit with buck 1.5-1.7:3.6-3.7；The air inlet timing time is 35-55min；(3) timing is reacted are as follows: the excessive CO2Gas has been dissolved into buck, forms a large amount of HCO3 -And CO3 2-, above-mentioned Ca present in anion and buck2+And Mg2+Fouling and attachment on turnover panel blade (9) in conjunction with after；CO2Gas enters sour gas General pipeline (33), and enter draining timing after scale removal unit stops 70-90min；(4) timing is drained are as follows: when reacted after sequence, enter the buck after reaction in ash water tank (14) by pipeline, row Until liquid level when water need to be reduced to the bottom of turnover panel fixed frame (22), draining timing is 35-45min；(5) scale removal timing are as follows: form one layer of dirty piece, starting chain rotation on sort run 48-72h end blocking blade (9) when normal Dynamic motor (18), sprocket wheel rotary electric machine (18) are rotated by chain (30) band movable sprocket (31), and sprocket wheel (31) passes through axis (29) band The rotation of several turnover panel rotation cams (23) is moved, drives turnover panel swivel-chain (20) to do while turnover panel rotation cam (23) rotates Lower reciprocating motion, turnover panel swivel-chain (20) can adjust the angle of turnover panel blade (9), make scraper plate (10) and turnover panel while moving The upper surface friction of blade (9) carries out scale removal, scale removal timing runing time 70-90min；(6) reduction timing is rinsed are as follows: after scale removal timing, the water in flush box (13) is made to pass through spray piping (32) To being rinsed spray at the top of turnover panel fixed frame (22)；Flushing water and dirty piece pass through buck except hard automatically cleaning shell (3) Outlet at bottom enters roller sieve part；Step 5: by buck except the buck of hard automatically cleaning unit enters ash water tank (14), the total hardness in buck exists at this time 450-600mg/L, PH 8.0-8.4, the lower hardness buck come out from hardness removing device are needed and are not mixed except hard buck It closes, prevents the fluctuation that hardness is excessive, entered in stand-by workshop section (7) after mixing by grey water pump (15) and used；Step 6: entering in rotary screen (26) described in step 4 into the flushing water of roller sieve part and dirty piece, by dirty piece and Water separation, the water after separation are entered in detritus tank (17) by separation water out (27), and the dirty piece after separation passes through solids exit Mouth (28) enters trolley and transports outward；The mesh density of the rotary screen (26) is 1-2.5mm；Step 7: after roller sieve part end of run, the water in flush box (13) is by spray piping (32) to rotary screen (26) Top be rinsed spray, flushing water is entered in detritus tank (17) by separation water out (27).
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Address after: 450001 100 science Avenue, Zhengzhou high tech Zone, Henan Applicant after: Zhengzhou University Applicant after: Henan Xinlianxin Chemical Industry Group Co., Ltd. Address before: 450001 100 science Avenue, Zhengzhou high tech Zone, Henan Applicant before: Zhengzhou University Applicant before: Henan XInlianxin Fertiliser Limited Company |