CN107126736A - Crystal salt equipment for separating liquid from solid and its method are hydrated in a kind of coal chemical industrial waste water - Google Patents
Crystal salt equipment for separating liquid from solid and its method are hydrated in a kind of coal chemical industrial waste water Download PDFInfo
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- CN107126736A CN107126736A CN201710543706.6A CN201710543706A CN107126736A CN 107126736 A CN107126736 A CN 107126736A CN 201710543706 A CN201710543706 A CN 201710543706A CN 107126736 A CN107126736 A CN 107126736A
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- filter press
- filter
- blowback
- valve
- waste water
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- 150000003839 salts Chemical class 0.000 title claims abstract description 58
- 239000003245 coal Substances 0.000 title claims abstract description 36
- 239000013078 crystal Substances 0.000 title claims abstract description 36
- 239000000126 substance Substances 0.000 title claims abstract description 33
- 239000007788 liquid Substances 0.000 title claims abstract description 26
- 239000010842 industrial wastewater Substances 0.000 title claims abstract description 24
- 239000007787 solid Substances 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000004744 fabric Substances 0.000 claims abstract description 35
- 238000000926 separation method Methods 0.000 claims abstract description 19
- 238000002425 crystallisation Methods 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 230000009467 reduction Effects 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 239000000706 filtrate Substances 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 15
- 238000007599 discharging Methods 0.000 claims description 14
- 239000002351 wastewater Substances 0.000 claims description 13
- 238000001704 evaporation Methods 0.000 claims description 10
- 230000008020 evaporation Effects 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 230000008025 crystallization Effects 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 7
- 230000008676 import Effects 0.000 claims description 6
- 239000012047 saturated solution Substances 0.000 claims description 6
- 239000012065 filter cake Substances 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 238000011001 backwashing Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 2
- 230000008859 change Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 abstract 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 6
- 239000007832 Na2SO4 Substances 0.000 description 5
- 239000012267 brine Substances 0.000 description 5
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 5
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 4
- 238000011085 pressure filtration Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 230000036571 hydration Effects 0.000 description 3
- 238000006703 hydration reaction Methods 0.000 description 3
- 229910017053 inorganic salt Inorganic materials 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229940111121 antirheumatic drug quinolines Drugs 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001716 carbazoles Chemical class 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 150000002475 indoles Chemical class 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 150000003222 pyridines Chemical class 0.000 description 1
- 150000003248 quinolines Chemical class 0.000 description 1
- 239000011833 salt mixture Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- PANBYUAFMMOFOV-UHFFFAOYSA-N sodium;sulfuric acid Chemical compound [Na].OS(O)(=O)=O PANBYUAFMMOFOV-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
- B01D25/21—Plate and frame presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/28—Leaching or washing filter cakes in the filter handling the filter cake for purposes other than regenerating
- B01D25/282—Leaching or washing filter cakes in the filter handling the filter cake for purposes other than regenerating for drying
- B01D25/284—Leaching or washing filter cakes in the filter handling the filter cake for purposes other than regenerating for drying by gases or by heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/32—Removal of the filter cakes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/18—Heating or cooling the filters
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
Crystal salt equipment for separating liquid from solid and its method are hydrated in a kind of coal chemical industrial waste water, the separation of crystalline hydrate salt and the accident rate of reduction system operation can be realized well by the type plate and frame filter press and technique, it is ensured that system it is stable.Crystallisation by cooling hardened probability of the crystal salt in pipeline and equipment is reduced using the technology, and can easily change filter cloth from without influenceing production, filter cloth realizes recycling using offline cleaning.
Description
Technical field
Patent of the present invention belongs to crystal salt separation technology field in waste water, and in particular to knot is hydrated in a kind of coal chemical industrial waste water
Brilliant salt equipment for separating liquid from solid and its method.
Background technology
The resource characteristic of China is abundant for coal, and oil lacks, natural unsaturated vapor, therefore maximizes favourable factors and minimizes unfavourable ones and send out energetically
Exhibition coal chemical industry is the main trend of coal in China industry Transformation Development, is also the important channel for solving energy crisis.But
It is coal resources in China and water resource is in contrary distribution feature, the regional water of rich coal resources is short,
And coal chemical industry belongs to high consumption high pollution industry, therefore shortage of water resources and water pollution problems turn into restriction coal chemical industry
The key issue of industry development.In order to restrict influence of the industry to environment to greatest extent, country promulgates《China's water saving skill
Art policy outline》, propose the concept of waste water zero emission.
The characteristics of processing of strong brine is also faced with problem, strong brine high salinity can produce to suppress to poison to biology to be made
With causing it can not directly carry out biochemical treatment.The complicated component of strong brine, with raising of the country for the requirement of environmental protection,
Expert and engineers and technicians are utilized as target with recycling, combine current water treatment technology, can realize in strong brine
The utilization of resources.Current coal chemical industry wastewater zero emission processing realizes dissolving salt for brine waste using the technique for being concentrated by evaporation processing
Proposition.But there is a major issue in current engineering：Because organism kinds are more in coal chemical industrial waste water, complicated component
（Mostly some hardly degraded organic substances such as indoles, quinolines, carbazoles, pyridines）, also contain NO2 -、NO3 -Plasma is deposited
Make the grain diameter of crystalline salt by evaporation small, it is impossible to using the continuous operation centrifuge of salt chemical engineering industry as going out salt means.Coal
NaCl, Na are mainly contained in wastewater from chemical industry2SO4, after undue salt treatment, a certain vaporising device output Na2SO4Crystal salt,
Na2SO4It is easily formed Na2SO4·10H2The hardened equipment of O and pipeline.
Coal chemical industrial waste water passes through organic matter, NO in the concentration of multiple-effect evaporation, solution2 -、NO3 -Plasma is also constantly concentrated, and is made
The particle diameter of crystal salt is smaller, is separated in coal chemical industrial waste water by mixed salt, Na2SO4Survey crystal salt and easily form Na2SO4·10H2O and
Block pipeline.Therefore seek one kind and be adapted in coal chemical industrial waste water and be hydrated crystal salt equipment for separating liquid from solid and technique there is important meaning
Justice.
The content of the invention
In order to overcome the disadvantages mentioned above of prior art, it is an object of the invention to provide crystalline hydrate in a kind of coal chemical industrial waste water
Salt equipment for separating liquid from solid and its method.The particle diameter of the invention for being directed to dissolving salt in coal chemical industry water is small, salt is easily formed crystalline hydrate
The separation of salt, it is proposed that one kind improves filter press and technique.Dissolving salt is realized molten in water by multiple-effect evaporation in coal chemical industrial waste water
The proposition of salt is solved, realizes that wastewater zero discharge is handled.The present invention can avoid crystal salt hardened, realize pipeline and equipment, tiny
The separation of grain, and filter press is stable, improves the operation stability of whole zero-emission engineering.
Crystal salt equipment for separating liquid from solid is hydrated in a kind of coal chemical industrial waste water, the outlet of discharge tank is connected respectively by discharging pump
The import of discharge tank and the center material hole of filter press；The import of filtrate tank connects each corner material hole of filter press respectively；Filter press
Side layer hole be divided into two groups, one of which is preheating water inlet, and one group is preheating water out；The gas vent of blowback gas tank point
Not Lian Jie filter press side layer hole and part corner material hole, regulating reservoir connection filter press.
The method of crystal salt separation of solid and liquid is hydrated in a kind of carry out coal chemical industrial waste water, is comprised the following steps：
1）Discharge tank preparation：Coal chemical industrial waste water enters discharge tank after multiple-effect crystallization and evaporation containing solid crystal salt waste water, adjusts phase
Answer valve so that the waste water in discharge tank enters discharge tank import through discharging pump, prevents crystal salt from settling tank base；
2）Filter press cavity is preheated：Hot water pre-heating system is opened, respective valves are adjusted so that hot water enters pressure from preheating water inlet
Filter, from preheating water out outflow, make cavity temperature control in certain temperature； 3）Filter press charging operation：Treat pre-heating system
Run after a period of time, adjust respective valves, close preheating water inlet, preheating water out and discharge tank imported valve, open out
Batch can enters the valve that the valve of filter press, filter press enter filtrate tank so that waste water enters through discharging pump, filter press in discharge tank
Enter filtrate tank, close hot water pre-heating system, start to feed into filter press, treat that feed system pressure rises constant, fill process
Complete；
4）Filter press is backwashed：After charging terminates, close discharge tank and enter the valve that the valve of filter press, filter press enter filtrate tank
Door, opens regulating reservoir pump and corresponding inlet valve, rapid to open filter press backwashing system, and the saturated solution in feed pipe is drained into
Regulating reservoir, prevents line clogging；
5）Filter press blowback：After backwash terminates, regulating reservoir and corresponding valve are closed, blowback gas tank is opened and enters filter press
Valve carries out filter press blowback system, carries out the left blowback of hot-air, opens intake valve (V14, V06) and filtrate production on the left of filter press
Respective valves are closed after valve (V07, V09, V11), blowback 10min.And then the right blowback of hot-air is carried out, open on the right side of filter press
Intake valve (V15, V07) and filtrate production valve (V06, V08, V10), blowback 10min terminate., will by left and right hot-air blowback
Moisture blowout filter press system in plate and frame filter press filter cake；
6）Filter press discharging：Whole valves are closed in blowback after terminating, close blowback gas tank, carry out filter press discharging, fast after discharging
Speed closes filter press, keeps system constant temperature.
The hot water temperature of the hot water pre-heating system is 50 ~ 70 DEG C, and hot water smoothness in the cavity of filter press passes through press filtration
Machine filter plate, it is ensured that the cavity temperature of filter press is controlled more than 40 DEG C.
The filter press blowback gas tank uses jacket type gas storage tank, and hot-air walks shell side heated compressed air, prevents blowback
Temperature reduces and causes the hardened equipment of the crystal salt crystallization water during filter press filter board.
Filter cloth on the filter press filter board using the hole built in formula mounting means, i.e. filter cloth central aperture, filter cloth with
6 pilot nails correspondence of protrusion in the middle of filter plate, is ridden over filter cloth on filter plate by hole, is fixed without bandage is carried out；Filter cloth end
Face uses hydrophobic modification, residual of the reduction inorganic salts in filter cloth end face.
The beneficial effects of the invention are as follows：
1st, filter press separation hydration crystal salt sets up backwash, blowback step：Separation currently for crystal salt is more using centrifugation
Machine carry out separation of solid and liquid, but because in coal chemical industrial waste water COD components be responsible for caused by the low use plate and frame filter press of crystalline particle, because of thing
The particularity of material（Low temperature separates out the hardened equipment of crystal）, set up material liquid blowback, air blowback and ensure that conveyance conduit is unimpeded, drop
Low line clogging risk.
2nd, press filtration machine equipment carries out the blowback air heating air of preheating cavity, filter press：The particularity of material, it is necessary to
The presence of crystal salt is just avoided that in certain temperature, therefore again in original Equipment Foundations, sets up preheating cavity systems, blowback air
Heating system, what it is hence into filter press system is high-temp liquid or gas, it is ensured that system is transported more than crystalline hydrate temperature
OK, the operation stability of device is further increased.
3rd, canvas press cloth end face hydrophobization, improves plant running stability：In the operation of filter press, if contact surface is deposited
Filter press leaked-material, material spray situation are easily caused in foreign matter to exist.Filter press end face is organised according to the similar principle that mixes
Processing, reduction inorganic salts bond end face, so as to largely improve the environmental quality around the operation stability and equipment of device.
Brief description of the drawings
Fig. 1 is the solid-liquid separation process system schematic of hydration crystal salt in coal chemical industrial waste water；
Fig. 2 is that filter press frame preheats schematic diagram；
Fig. 3 is canvas press cloth/coating schematic diagram.
Embodiment
Patent of the present invention is done with reference to the accompanying drawings and detailed description and further illustrated, patent of the present invention
Advantage will become apparent.
Patent of the present invention is, using the equipment and process system for improving filter press, to be preheated by sheet frame, filter press hot-air
Blowback, the modification easy to disassemble for building filter cloth and filter cloth, realize that the solid-liquid that crystal salt is hydrated in coal chemical industrial waste water is fully separating,
The hardened pipeline of crystalline hydrate salt and the probability of equipment are reduced simultaneously.Specific embodiment is as described below：
Vapo(u)rization system enters discharge tank after multiple-effect crystallization and evaporation containing solid crystal salt, opens hot water pre-heating system, preheats sheet frame
Filter press cavity, makes cavity temperature control in certain temperature, while filter press blowback gas tank also enters pre-heating system, control exists
Certain temperature.After pre-heating system runs a period of time, start filter press charging, open feed system valve and filtrate system valve
Door, it is ensured that the unimpeded circulation of whole filtrate, represents that feed system has been completed when feed system pressure persistently rises constant.Charging knot
It is rapid after beam to open filter press backwashing system, regulating reservoir pump and corresponding inlet valve are opened, by the solid crystal in feed pipe
Salt drains into trench, prevents line clogging.Backwash carries out filter press blowback system after terminating, and blowback system is divided into a hot-air left side and blown
Blown with the hot-air right side, by outside the moisture discharge system in plate and frame filter press filter cake.Blowback carries out filter press discharging, discharging after terminating
Immediately must close filter press afterwards reduces the hardened filter cloth of crystalline hydrate salt and the probability of equipment to ensure the constant temperature of system.
The cavity pre-heating system of filter press is preheated using hot water（50-70℃）, filter press filter board is hollow to ensure thermostatted water water
Bath is unimpeded to be flowed through, and ensures that the cavity temperature of cavity is controlled more than 40 DEG C by preheating filter press filter board.Filter press blowback gas tank
Using jacket type gas storage tank, hot-air walks shell side heated compressed air, not because temperature is reduced when causing blowback filter press filter board
Cause the hardened equipment of the crystal salt crystallization water.
Canvas press cloth fixed form on filter press filter board, which is used, builds formula（In Fig. 3 shown in 2）, i.e., directly across riding over
On filter plate, it is ensured that change the completion of filter cloth moment, filter cloth end face uses hydrophobic modification（In Fig. 3 shown in 1 dash area）, reduce nothing
Machine salt remains the probability of end face.
The technique mainly realizes the separation of crystalline hydrate salt by filter press, and three steps of the technique point realize crystalline hydrate salt
Separation：1st, sheet frame is preheated：Sheet frame is preheated using the steam condensate of vapo(u)rization system, it is ensured that whole system is higher than the crystallization water
At a temperature of run；2nd, material liquid is rinsed：After filter press terminates, mixed salt mixture in feed pipe is drained into using evaporation material liquid
Land pond, it is ensured that without solid-liquid residual in feeding line；3rd, hot compressed air blowback：After material liquid is rinsed, pass through the sky of heating
Gas carries out blow-back to the filter cake in filter press, improves filter cake temperature and containing misgivings by the dehydration of gas stripping, reduces press filtration
Hardened probability in machine sheet frame；4th, filter cloth builds formula using portable：Filter cloth is built on sheet frame, once filter cloth material leakage is found,
It is random to change filter cloth.
Crystalline inorganic salt in coal chemical industrial waste water water is directed to, canvas press cloth is handled using special device, in press filtration
The sheet frame end contact face of machine filter plate carries out organic process, the organic matter such as spraying plating wax, organosilicon, reduces the work of it and inorganic salts
With, it is ensured that the shiny surface in non-sticky crystal salt exists the seal face of system all the time.Because of the long term accumulation of inorganic salts, filter cloth is needed
Maintenance replacing is periodically carried out, therefore uses and builds filter cloth, the replacing of filter cloth portable can be realized.
Embodiment 1
It is 7000mg/L that coal chemical industry wastewater zero emission system evaporative crystallization unit, which enters TDS, feeds 80m3/ h, by multiple-effect evaporation
After system, 55 DEG C of saturated solution temperature, the m of load 303/h.Saturated solution containing solid content 15% enters discharge tank.Using hot water
Sheet frame preheating is carried out, 45 DEG C of thermostatic in plate and frame filter press cavity is made by hot water.Filter press feed pump is opened to be pressed
Filter separation, press filtration front half section is fed using VFC very flow, and constant pressure filtration is carried out when filter press feed pressure reaches 0.7MPa,
Amount of filtrate is reduced during constant pressure filtration, when being reduced to 10m3/ h, represents that filter press charging terminates.Charging enters raw material after terminating
Liquid recoils, and opens V05, V03, V04 and material in feed pipe is drained into trench by the raw material pump of regulating reservoir.All valves are closed to enter
The left blowback of row hot-air, starts valve V12, V14, V06 and filtrate production valve V07, V09, V11, a compressed air left side is blown after 10min
Close respective valves and enter the right blowback of compressed air, start valve V12, V15, V07 and filtrate production valve V06, V08, V10, pressure
The contracting air right side is blown to be closed after 10min.Pulling plate unloading, last solid inorganic salt 5.6t, moisture content 4% are carried out after end.Filter cloth is cleaned
Frequency 1 time/6 times, 1 time/April of filter cloth replacing frequency
Embodiment 2
It is 4000mg/L that coal chemical industry wastewater zero emission system evaporative crystallization unit, which enters TDS, feeds 60m3/ h, by multiple-effect evaporation
After system, 55 DEG C of saturated solution temperature, the m of load 153/h.Saturated solution containing solid content 15% enters discharge tank.Using hot water
Sheet frame preheating is carried out, 45 DEG C of thermostatic in plate and frame filter press cavity is made by hot water.Filter press feed pump is opened to be pressed
Filter separation, press filtration front half section is fed using VFC very flow, and constant pressure filtration is carried out when filter press feed pressure reaches 0.7MPa,
Amount of filtrate is reduced during constant pressure filtration, when being reduced to 10m3/ h, represents that filter press charging terminates.Charging enters raw material after terminating
Liquid recoils, and opens V05, V03, V04 and material in feed pipe is drained into trench by the raw material pump of regulating reservoir.All valves are closed to enter
The left blowback of row hot-air, starts valve V12, V14, V06 and filtrate production valve V07, V09, V11, a compressed air left side is blown after 10min
Close respective valves and enter the right blowback of compressed air, start valve V12, V15, V07 and filtrate production valve V06, V08, V10, pressure
The contracting air right side is blown to be closed after 10min.Last solid inorganic salt 2.4t, moisture content 4%.Filter cloth cleaning frequency 1 time/7 times, filter cloth are more
Change 1 time/April of frequency
Above test result indicates that, the present invention can be very good to be adapted in coal chemical industrial waste water hydration crystal salt separation of solid and liquid, lead to
The risk of the sodium sulphate low temperature formation hardened equipment of hydrated sulfuric acid sodium can be reduced by crossing patent of the present invention, while improving plate and frame filter press
The separation of solid and liquid of fine particle can be realized, it is better than and uses centrifuge.By improved plate and frame filter press, filter cloth can be with
Reuse, and dismantle, install portable, it is easier to operated.Finally separated crystal salt moisture content can be met up to 4%
The package requirement of crystal salt.
Claims (5)
1. be hydrated crystal salt equipment for separating liquid from solid, including filter press in a kind of coal chemical industrial waste water, it is characterised in that discharge tank goes out
Mouth connects the import of discharge tank and the center material hole of filter press by discharging pump respectively；The import of filtrate tank connects filter press respectively
Each corner material hole；The side layer hole of filter press is divided into two groups, and one of which is preheating water inlet, and one group is preheating water out；
The gas vent of blowback gas tank connects the side layer hole and part corner material hole of filter press, regulating reservoir connection filter press respectively.
2. a kind of method for carrying out being hydrated crystal salt separation of solid and liquid in coal chemical industrial waste water by claim 1 described device, it is special
Levy and be, comprise the following steps：
1）Discharge tank preparation：Coal chemical industrial waste water enters discharge tank after multiple-effect crystallization and evaporation containing solid crystal salt waste water, adjusts phase
Answer valve so that the waste water in discharge tank enters discharge tank import through discharging pump, prevents crystal salt from settling tank base；
2）Filter press cavity is preheated：Hot water pre-heating system is opened, respective valves are adjusted so that hot water enters pressure from preheating water inlet
Filter, from preheating water out outflow, make cavity temperature control in certain temperature；
3）Filter press charging operation：After pre-heating system runs a period of time, respective valves are adjusted, preheating water inlet are closed, pre-
Hot water outlet and discharge tank imported valve, open discharge tank and enter the valve that the valve of filter press, filter press enter filtrate tank, make
Obtain waste water in discharge tank and enter filtrate tank through discharging pump, filter press, close hot water pre-heating system, start to feed into filter press,
When feed system pressure rises constant, represent that now fill process is completed；
4）Filter press is backwashed：After charging terminates, close discharge tank and enter the valve that the valve of filter press, filter press enter filtrate tank
Door, opens regulating reservoir pump and corresponding inlet valve, rapid to open filter press backwashing system, and the saturated solution in feed pipe is drained into
Trench, prevents line clogging；
5）Filter press blowback：After backwash terminates, regulating reservoir and corresponding valve are closed, blowback gas tank is opened and enters filter press
Valve carries out filter press blowback system, carries out the left blowback of hot-air, opens intake valve (V14, V06) and filtrate production on the left of filter press
Respective valves are closed after valve (V07, V09, V11), blowback 10min；
And then carry out the right blowback of hot-air, open filter press on the right side of intake valve (V15, V07) and filtrate produce valve (V06, V08,
V10), blowback 10min terminates；
By left and right hot-air blowback, the moisture in plate and frame filter press filter cake is blown out into filter press system；
6）Filter press discharging：Whole valves are closed in blowback after terminating, close blowback gas tank, carry out filter press discharging, fast after discharging
Speed closes filter press, keeps system constant temperature.
3. the method for crystal salt separation of solid and liquid is hydrated in a kind of coal chemical industrial waste water according to claim 2, it is characterised in that
The hot water temperature of the hot water pre-heating system is 50 ~ 70 DEG C, and hot water smoothness in the cavity of filter press, by filter press filter board, is protected
The cavity temperature for demonstrate,proving filter press is controlled more than 40 DEG C.
4. the method for crystal salt separation of solid and liquid is hydrated in a kind of coal chemical industrial waste water according to claim 2, it is characterised in that
The filter press blowback gas tank uses jacket type gas storage tank, and hot-air walks shell side heated compressed air, prevents blowback press filtration machine filter
Temperature reduces and causes the hardened equipment of the crystal salt crystallization water during plate.
5. the method for crystal salt separation of solid and liquid is hydrated in a kind of coal chemical industrial waste water according to claim 2, it is characterised in that
Filter cloth on the filter press filter board is used in the middle of hole and the filter plate built in formula mounting means, i.e. filter cloth central aperture, filter cloth
Protrusion 6 pilot nails correspondence, filter cloth is ridden on filter plate by hole, without carry out bandage fix；Filter cloth end face is using thin
Aquation is modified, residual of the reduction inorganic salts in filter cloth end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710543706.6A CN107126736A (en) | 2017-07-05 | 2017-07-05 | Crystal salt equipment for separating liquid from solid and its method are hydrated in a kind of coal chemical industrial waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710543706.6A CN107126736A (en) | 2017-07-05 | 2017-07-05 | Crystal salt equipment for separating liquid from solid and its method are hydrated in a kind of coal chemical industrial waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107126736A true CN107126736A (en) | 2017-09-05 |
Family
ID=59737477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710543706.6A Pending CN107126736A (en) | 2017-07-05 | 2017-07-05 | Crystal salt equipment for separating liquid from solid and its method are hydrated in a kind of coal chemical industrial waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107126736A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107638735A (en) * | 2017-10-13 | 2018-01-30 | 河钢股份有限公司承德分公司 | A kind of method by slurry filtration for filtrate |
| CN107875696A (en) * | 2017-11-14 | 2018-04-06 | 河钢股份有限公司承德分公司 | A kind of method for filtering calcium vanadate slurry system and being filtered using it |
| CN109621505A (en) * | 2018-12-06 | 2019-04-16 | 徐宝海 | A kind of thickener efficient operation control method and high-efficiency concentrator |
| CN109647021A (en) * | 2019-02-25 | 2019-04-19 | 浙江杰为凯环保科技有限公司 | By the working method of the phosphating solution slagging-off filter press of PLC control |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4410433A (en) * | 1977-06-22 | 1983-10-18 | Arvanitakis Kostas S | Vertical filter system |
| JPH11262604A (en) * | 1998-03-19 | 1999-09-28 | Noritake Tekkosho:Kk | Filtration method with filter press |
| CN1843557A (en) * | 2006-03-10 | 2006-10-11 | 蒋卓冰 | Filter press |
| CN2843576Y (en) * | 2005-04-11 | 2006-12-06 | 莱芜凤普自控有限责任公司 | Filter board |
| CN102489068A (en) * | 2011-12-05 | 2012-06-13 | 云南大红山管道有限公司 | Device and method for preventing feeding valve of ceramic filter from being blocked |
| CN202822909U (en) * | 2012-09-20 | 2013-03-27 | 山东铝业公司设备研究检测中心 | Novel vertical-type full-automatic self-locking-type efficient diaphragm filter press |
| CN204159093U (en) * | 2014-10-17 | 2015-02-18 | 金川集团股份有限公司 | A kind of filter press charging filter plate |
| CN204952385U (en) * | 2015-08-04 | 2016-01-13 | 上海凡贝机械有限公司 | Press filter |
| CN105536310A (en) * | 2016-01-25 | 2016-05-04 | 佛山市金凯地过滤设备有限公司 | Filter pressing method for removing residual water conveniently and filter press adopting filter pressing method |
| CN105833580A (en) * | 2016-04-27 | 2016-08-10 | 杭州兴源环保设备有限公司 | Box type filter press filtering process of sodium sulfate |
| CN206153268U (en) * | 2016-10-20 | 2017-05-10 | 山东黄金冶炼有限公司 | Cyaniding tailings breaks cyanogen processing system |
| CN206965237U (en) * | 2017-07-05 | 2018-02-06 | 陕西省石油化工研究设计院 | Crystal salt equipment for separating liquid from solid is hydrated in a kind of coal chemical industrial waste water |
-
2017
- 2017-07-05 CN CN201710543706.6A patent/CN107126736A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4410433A (en) * | 1977-06-22 | 1983-10-18 | Arvanitakis Kostas S | Vertical filter system |
| JPH11262604A (en) * | 1998-03-19 | 1999-09-28 | Noritake Tekkosho:Kk | Filtration method with filter press |
| CN2843576Y (en) * | 2005-04-11 | 2006-12-06 | 莱芜凤普自控有限责任公司 | Filter board |
| CN1843557A (en) * | 2006-03-10 | 2006-10-11 | 蒋卓冰 | Filter press |
| CN102489068A (en) * | 2011-12-05 | 2012-06-13 | 云南大红山管道有限公司 | Device and method for preventing feeding valve of ceramic filter from being blocked |
| CN202822909U (en) * | 2012-09-20 | 2013-03-27 | 山东铝业公司设备研究检测中心 | Novel vertical-type full-automatic self-locking-type efficient diaphragm filter press |
| CN204159093U (en) * | 2014-10-17 | 2015-02-18 | 金川集团股份有限公司 | A kind of filter press charging filter plate |
| CN204952385U (en) * | 2015-08-04 | 2016-01-13 | 上海凡贝机械有限公司 | Press filter |
| CN105536310A (en) * | 2016-01-25 | 2016-05-04 | 佛山市金凯地过滤设备有限公司 | Filter pressing method for removing residual water conveniently and filter press adopting filter pressing method |
| CN105833580A (en) * | 2016-04-27 | 2016-08-10 | 杭州兴源环保设备有限公司 | Box type filter press filtering process of sodium sulfate |
| CN206153268U (en) * | 2016-10-20 | 2017-05-10 | 山东黄金冶炼有限公司 | Cyaniding tailings breaks cyanogen processing system |
| CN206965237U (en) * | 2017-07-05 | 2018-02-06 | 陕西省石油化工研究设计院 | Crystal salt equipment for separating liquid from solid is hydrated in a kind of coal chemical industrial waste water |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107638735A (en) * | 2017-10-13 | 2018-01-30 | 河钢股份有限公司承德分公司 | A kind of method by slurry filtration for filtrate |
| CN107638735B (en) * | 2017-10-13 | 2020-05-22 | 河钢股份有限公司承德分公司 | Method for filtering slurry into filtrate |
| CN107875696A (en) * | 2017-11-14 | 2018-04-06 | 河钢股份有限公司承德分公司 | A kind of method for filtering calcium vanadate slurry system and being filtered using it |
| CN107875696B (en) * | 2017-11-14 | 2020-05-19 | 河钢股份有限公司承德分公司 | Calcium vanadate slurry filtering system and method for filtering by using same |
| CN109621505A (en) * | 2018-12-06 | 2019-04-16 | 徐宝海 | A kind of thickener efficient operation control method and high-efficiency concentrator |
| CN109621505B (en) * | 2018-12-06 | 2024-05-28 | 徐宝海 | Efficient operation control method of concentrator and efficient concentrator |
| CN109647021A (en) * | 2019-02-25 | 2019-04-19 | 浙江杰为凯环保科技有限公司 | By the working method of the phosphating solution slagging-off filter press of PLC control |
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Address after: No.61 Xiyan Road, Xi'an City, Shaanxi Province 710054 Applicant after: Shaanxi Chemical Research Institute Co.,Ltd. Address before: No.61 Xiyan Road, Xi'an City, Shaanxi Province 710054 Applicant before: SHAANXI RESEARCH DESIGN INSTITUTE OF PETROLEUM CHEMICAL INDUSTRY |
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Application publication date: 20170905 |