CN107935288A - A kind of MVR evaporations divide the pretreatment system of salt - Google Patents
A kind of MVR evaporations divide the pretreatment system of salt Download PDFInfo
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- CN107935288A CN107935288A CN201711375680.5A CN201711375680A CN107935288A CN 107935288 A CN107935288 A CN 107935288A CN 201711375680 A CN201711375680 A CN 201711375680A CN 107935288 A CN107935288 A CN 107935288A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/043—Details
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses the pretreatment system that a kind of MVR evaporations divide salt, including original fluid container, aerator, impurity removing equipment, sedimentation basin and filter plant；The original fluid container is sequentially connected aerator, impurity removing equipment, sedimentation basin and filter plant, and the outlet connection MVR evaporations of filter plant divide salt equipment；Wherein impurity removing equipment includes the first blending tank, the second blending tank, akali sulphide tank and molysite tank, the akali sulphide tank connects first blending tank, first blending tank connects the second blending tank, the molysite tank connects the second blending tank, the import connection aerator of first blending tank, the liquid outlet connection sedimentation basin of second blending tank.Pretreatment system of the present invention, the system by deliming, magnesium removing heavy metals except impurity again deliming, magnesium form, needs can be carried out to the impurity in the solution of point salt and other materials remove totally, so as to retain the potassium in solution, sodium, ensure the salt degree of purity for dividing salt.
Description
Technical field
The present invention relates to incineration of refuse flyash process field, more particularly to a kind of MVR evaporations to divide the pretreatment system of salt.
Background technology
At present, environmental pollution is the most important problem faced in modern production, life, nowadays to the rubbish in life
Processing is broadly divided into landfill and burning, and easily middle pollutant goes underground during landfill, contaminated soil, therefore more extensive
By waste incineration, need to keep higher temperature first, in combustion process, and existing heat source mainly uses natural gas, energy
Consumption is higher, and a large amount of flying dust solid particles are produced after waste incineration, and the processing of solid particle is also particularly critical.
There are substantial amounts of harmful substance (such as bioxin in flying dust after waste incineration), heavy metal and recyclable salt thing
Matter, if flying dust directly is used for building materials or is directly discharged, it will influence the quality of building materials and secondary dirt is brought to environment
Dye, is all to carry out separation salts substances again after first the harmful substance in flying dust is removed under normal circumstances, such way can
Pollution is reduced, while salts substances can be recycled again and used as the raw material of industry, reduces the cost of processing rubbish.
In existing system harmful substance removal using high temperature incinerate method, after by dilution separate, its energy
Part heavy metal is enough removed, still, removal of such a form to heavy metal is not perfect enough, so that the quality of point salt is influenced, in addition,
Most of salts substances of recoverable, but can also be there are calcium salt and magnesium salts in solution based on sylvite, sodium salt, its is same
Influence whether the quality of salt separated, the sylvite of extraction, the purity of sodium salt are inadequate, it is also necessary to process of refinement is done again, during waste
Between, while increase cost.
The content of the invention
With reference to the deficiencies in the prior art, it can thoroughly remove harmful substance the present invention provides one kind, ensure that evaporation divides salt
Quality, the MVR to reduce the cost evaporations divide the pretreatment system of salt.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of MVR evaporations divide the pretreatment system of salt, including original fluid container, aerator, impurity removing equipment, sedimentation basin and mistake
Filter equipment；
The original fluid container is sequentially connected aerator, impurity removing equipment, sedimentation basin and filter plant, the outlet of filter plant
Connection MVR evaporations divide salt equipment；
Wherein impurity removing equipment includes the first blending tank, the second blending tank, akali sulphide tank and molysite tank, and the akali sulphide tank connects
Connecing first blending tank, first blending tank connects the second blending tank, and the molysite tank connects the second blending tank, and described the
The import connection aerator of one blending tank, the liquid outlet connection sedimentation basin of second blending tank.
Further, the sedimentation basin is made of mixed zone, flocculation zone and settling zone, the bottom of the mixed zone and wadding
The water inlet of coagulation zone bottom is connected, and is equipped with guide shell in the flocculation zone, the guide shell is opposite with the water inlet of flocculation zone
Should, the top side of the settling zone is equipped with water outlet, and the bottom of the settling zone is equipped with mud discharging mouth, the water outlet
Equipped with comb block piece, the first agitating device is equipped with the mixed zone.
Further, the second agitating device is equipped with the flocculation zone, second agitating device is arranged on the water conservancy diversion
The inside of cylinder.
Further, the guide shell side adjacent with settling zone is equipped with partition plate, and the bottom of the partition plate and pond body is set
There is interval.
Further, the bottom of the sedimentation basin is additionally provided with inclined circulation pipe, and the circulation pipe connects the flocculation zone
Water inlet, the circulation pipe is equipped with circulating pump.
Further, the filter plant includes sand filtration apparatus, and the sand filtration apparatus is sequentially connected neutralization pond and is set with refined filtration
Standby, wherein neutralization pond is acid-base accommodation equipment, and refined filtration equipment is filter.
Further, the sand filtration apparatus includes the tank body that bottom is taper, the outside of the tank body be equipped with original water inlet,
Outlet of sewer and water purification outlet, the inner top side of the tank body is equipped with the collecting container connected with tank interior, described to catchment
The bottom connection outlet of sewer of container, the top connection water purification outlet of the collecting container, be equipped with the tank body with raw water into
The water distributor of mouth connection, the middle part of the tank body is equipped with extraction pipe, is placed at the top of the extraction pipe in the collecting container, institute
The bottom for stating extraction pipe is equipped with elevator pump, is higher than the casting bed of water distributor in the tank body equipped with top surface.
Further, the bottom of the collecting container is equipped with the sand-washing device communicated therewith, and the sand-washing device carries to be set in
Delivery pipe on the outside of expects pipe, delivery pipe are that longitudinal section is waveform.
Further, the bottom side of the water distributor, which is additionally provided with, leads sand hopper, and the shape for leading sand hopper is overall gradual downwards
Widened cone tubular structure.
Further, the plane led where the maximum gauge of sand hopper is less than the pyramidal structure of the bottom of the tank body
Plane where maximum gauge, and lead the inner wall of sand hopper and tank body there are gap.
The beneficial effects of the invention are as follows：
Pretreatment system of the present invention, the system pass through deliming, magnesium-removing heavy metals-except the deliming of impurity-again, the form of magnesium, energy
Impurity and other materials in the enough solution that needs are carried out to point salt remove totally, so as to retain the potassium in solution, sodium, ensure
Divide the salt degree of purity of salt；The structure of removing heavy metals in the system, can be effectively by the removal of heavy metal ions in mixed liquor
Perfect, and generate the vulcanized slag and salting liquid that easily deposit, heavy metal that can be in vulcanized slag can be easily separated, former as industry after washing
Material uses, and achievees the purpose that removing heavy metals；Filtration system structure, can be effectively initial clean by the impurity in water body, ensures
Solvent clean.
Brief description of the drawings
Fig. 1 is the system structure block diagram for the pretreatment system that MVR evaporations provided in an embodiment of the present invention divide salt；
Fig. 2 is the structure diagram that MVR provided in an embodiment of the present invention evaporates sedimentation basin in the pretreatment system for dividing salt；
Fig. 3 is the structure diagram that MVR provided in an embodiment of the present invention evaporates sand filtration apparatus in the pretreatment system for dividing salt.
In figure：1st, original fluid container；2nd, aerator；3rd, impurity removing equipment；301st, the first blending tank；302nd, the second blending tank；
303rd, akali sulphide tank；304th, molysite tank；4th, sedimentation basin；401st, mixed zone；402nd, flocculation zone；403rd, settling zone；404th, water inlet；
405th, guide shell；406th, mud discharging mouth；407th, block piece is combed；408th, the first agitating device；409th, the second agitating device；4010、
Partition plate；4011st, circulation pipe；4012nd, circulating pump；5th, filter plant；501st, sand filtration apparatus；502nd, neutralization pond；503rd, refined filtration equipment；
6th, tank body；7th, original water inlet；8th, outlet of sewer；9th, water purification outlet；10th, collecting container；11st, water distributor；12nd, extraction pipe；13rd, carry
Rise pump；14th, casting bed；15th, sand-washing device；16th, sand hopper is led.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.The present invention implementation being usually described and illustrated herein in the accompanying drawings
The component of example can be arranged and designed with a variety of configurations.Therefore, the reality of the invention to providing in the accompanying drawings below
The detailed description for applying example is not intended to limit the scope of claimed invention, is merely representative of the selected embodiment of the present invention,
Instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative labor
All other embodiments obtained under the premise of dynamic, belong to the scope of protection of the invention.
As shown in Figure 1, Fig. 1 shows that MVR evaporations provided in an embodiment of the present invention divide the pretreatment system of salt, including stoste
Tank 1, aerator 2, impurity removing equipment 3, sedimentation basin 4 and filter plant 5；
Original fluid container 1 is sequentially connected aerator 2, impurity removing equipment 3, sedimentation basin 4 and filter plant 5, and filter plant 5 goes out
Mouth connection MVR evaporations divide salt equipment；
Wherein, aerator 2 is aeration tank, it is mainly passed through carbon dioxide, carbon dioxide and water formed carbonate from
Son, carbanion and calcium ions and magnesium ions combine, and form precipitation, achieve the purpose that removing calcium and magnesium, and impurity removing equipment 3 includes the first mixing
Tank 301, the second blending tank 302, akali sulphide tank 303 and molysite tank 304, the first blending tank 301 of connection of akali sulphide tank 303, first
Blending tank 301 connects the second blending tank 302, and molysite tank 304 connects the second blending tank 302, the import connection of the first blending tank 301
Aerator 2, the liquid outlet connection sedimentation basin 4 of the second blending tank 302.
303 memory of akali sulphide tank is placed with Gas with Sodium Sulfide Solution, and 304 memory of molysite tank is placed with iron salt solutions, akali sulphide tank 303 with
Molysite tank 304 can connect vapour source, and hot steam can improve the temperature in tank, so as to accelerate the molten of akali sulphide and molysite
Solution, Gas with Sodium Sulfide Solution is passed through in the first blending tank 301, by being stirred continuously, akali sulphide puts middle Jinsui River ion in raw water
Change to form sulphur slag not soluble in water, sulphur slag can be extracted by washing and dressing equipment.
Iron salt solutions are passed through in the second blending tank 302 by raw water into the second blending tank of people 302, and iron salt solutions are by raw water
Interior excessive akali sulphide removes, so as to fulfill the course of work of removing heavy metals is gone.
Wherein solution can use the liquid pump being adapted with solution by Pipeline transport, improve work efficiency.
As shown in Fig. 2, sedimentation basin 4 is made of mixed zone 401, flocculation zone 402 and settling zone 403, the bottom of mixed zone 401
Portion is connected with the water inlet 404 of 402 bottom of flocculation zone, and guide shell 405, guide shell 405 and flocculation zone are equipped with flocculation zone 402
402 water inlet 404 is corresponding, and the top side of settling zone 403 is equipped with water outlet, and the bottom of settling zone 403 is arranged equipped with sludge
Mouth 406 is put, water outlet is equipped with comb block piece 407.
Wherein, the first agitating device 408 is equipped with mixed zone 401, the second agitating device 409 is equipped with flocculation zone 402, the
Two agitating devices 409 are arranged on the inside of guide shell 405, and comb block piece 407 is the pipe fitting of entire combination, it is inclined at water
In, the distance between adjacent pipe sections are between 5-20cm, and preferably 10 centimetres, pipe fitting is installed as apart from adjustable form.
Wherein, raw water is directed into the mixed zone 401 of sedimentation basin 4, flocculant or stone is added in mixed zone 401
Ash, the first agitating device 408, which quickly can stir flocculant or lime, to be dissipated and is sufficiently mixed with raw water, is formed small cotton-shaped
Material, flocculent substance flows into flocculation zone 402 along bottom under the action of current, under the action of the second agitating device 409, makes water
Body is flowed up along the bottom of guide shell 405, and flocculent substance is subject to improve the close of flocculent substance under the action of mixing power in cylinder
Degree, forms the flocculent substance of large volume, and the flocculent substance of large volume is flowed into settling zone 403 with water body.
Specifically, guide shell 405 could be provided as wide-mouth shape for bottom side, the guide shell 405 of wide-mouth shape can be more effective
The water body all stirring liftings that will enter in flocculation zone 402, improve work efficiency.
Wherein, the side adjacent with settling zone 403 of guide shell 405 is equipped with partition plate 4010, partition plate 4010 and the bottom of pond body
Equipped with interval, partition plate 4010 can play the role of unhurried current, and the water body for making to fail to be directly entered guide shell 405 will not flow directly into
In settling zone 403, and circulated repeatedly along guide shell 405, improve the cohesive process of the flocculent substance of small size.
Preferably, higher than the pool wall between flocculation zone 402 and settling zone 403, it can prevent the height of partition plate 4010 first
Only the flocculent substance in more flocculation zones 402 not by guide shell 405 enters in settling zone 403 one step ahead, in addition, flocculation
Pool wall between area 402 and settling zone 403 it is a lower height of in the case of, can enter in order to which the flocculent substance of large volume is convenient
In settling zone 403, avoid being accumulated by the barrier of height.
As further preferred embodiment, the bottom of settling zone 403 is additionally provided with inclined circulation pipe 4011, circulation pipe
The water inlet 404 of 4011 connection flocculation zones 402, circulation pipe 4011 are equipped with circulating pump 4012, and the effect of circulation pipe 4011 is energy
Enough in the case where sludge concentration is relatively low, open the circulation pump 4012, by the sediment of low concentration, flocculation zone is squeezed into circulation again
402 enter mixed lifting solubility in guide shell 405, can effectively improve work efficiency and improve the dense of sediment discharge
Degree, preferably to apply again.
Referring again to Fig. 1, filter plant 5 includes sand filtration apparatus 501, and sand filtration apparatus 501 is sequentially connected neutralization pond 502 and essence
Equipment 503 is filtered, wherein neutralization pond 502 is acid-base accommodation equipment, and refined filtration equipment 503 is filter, and can be set in refined filtration
Filling sodium form-positive resin filtrate in standby 503, it, can be further by calcium remaining in solution while impurity is filtered out
Magnesium ion removes, and ensures the degree of purity of k-na salt.
Specifically, filter plant 5 can also set aeration tank, aeration tank be arranged on sand coarse aggregate ratio equipment 501 and neutralization pond 502 it
Between, the calcium ions and magnesium ions in solution can be further removed, finally with reference to the collective effect of refined filtration equipment 503, by solution
Calcium ions and magnesium ions eliminate completely, ensure the degree of purity for dividing salt.
As shown in figure 3, sand filtration apparatus 501 includes the tank body 6 that bottom is taper, the outside of tank body 6 be equipped with original water inlet 7,
Outlet of sewer 8 and water purification outlet 9, the inner top side of tank body 6 are equipped with the collecting container 10 connected with the inside of tank body 6, collect the water capacity
The bottom connection outlet of sewer 8 of device 10, the top connection water purification outlet 9 of collecting container 10 are equipped with tank body 6 and original water inlet 7
The water distributor 11 of connection, the middle part of tank body 6 are equipped with extraction pipe 12, and the top exit of extraction pipe 12 is placed in collecting container 10, carries
The bottom of expects pipe 12 is equipped with elevator pump 13, is higher than the casting bed 14 of water distributor 11 in tank body 6 equipped with top surface.
Wherein, water body enters inside tank body 6 along original water inlet 7, after water distributor 11 disperse, in the effect of pressure
Under, water body is stretched to the top of tank body 6, during stretching, is fallen the contaminant filter in water body when water body passes through casting bed 14, was passed through
Water body after filter is discharged along water purification outlet 9；
Stretch simultaneously as water body is bottom-up, the impurity content of the casting bed 14 in bottom gradually increases, and at this time, opens
The elevator pump 13 of 6 bottom of tank body is opened, the sand body containing impurity is promoted in collecting container 10 by elevator pump 13, in collecting container 10
Water purification sand body is rinsed, clean sand body is settled down to inside tank body 6, and the sewage after fine sand is discharged along outlet of sewer 8, such shape
Constantly that water body filtration is clean into cyclic process, in addition the bottom of tank body 6 can be equipped with opening, for overhauling elevator pump 13
And replace sand body.
Specifically, the bottom of collecting container 10 is equipped with the sand-washing device 15 communicated therewith, sand-washing device 15 is to be set in extraction pipe
The delivery pipe in 12 outsides, the longitudinal section of delivery pipe are waveform, between corrugated sand-washing device 15 makes sand body during the deposition
Gap increases, and running orbit constantly changes, be conducive to upward water purification sand body is rinsed it is more thorough.
Wherein referring to Fig. 3, the bottom side of water distributor 11, which is additionally provided with, leads sand hopper 16, and the shape for leading sand hopper 16 is overall gradual downwards
Widened cone tubular structure, the sand body that leading the purpose of sand hopper 16 can make to settle down are evenly distributed on the bottom of tank body 6, prevent
Sand body is overrun sedimentation, improves filter effect.
Preferably, the plane where leading the maximum gauge of sand hopper 16 is straight less than the maximum of the pyramidal structure of the bottom of tank body 6
Plane where footpath, and sand hopper 16 is led with the inner wall of tank body 6 there are gap, it further reduces sand body sinking speed, divides
Every containing containing the different sand body of impurity concentration, strengthen filter effect.
Finally it should be noted that：Above-described embodiments are merely to illustrate the technical scheme, rather than to it
Limitation；Although the present invention is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：
It can still modify the technical solution described in previous embodiment, or to which part or all technical characteristic into
Row equivalent substitution；And these modifications or substitutions, the essence of appropriate technical solution is departed from various embodiments of the present invention technical side
The scope of case.
Claims (10)
1. a kind of MVR evaporations divide the pretreatment system of salt, it is characterised in that：Including original fluid container, aerator, impurity removing equipment, heavy
Shallow lake pond and filter plant；
The original fluid container is sequentially connected aerator, impurity removing equipment, sedimentation basin and filter plant, the outlet connection of filter plant
MVR evaporations divide salt equipment；
Wherein impurity removing equipment includes the first blending tank, the second blending tank, akali sulphide tank and molysite tank, and the akali sulphide tank connects institute
The first blending tank is stated, first blending tank connects the second blending tank, and the molysite tank connects the second blending tank, and described first is mixed
Close the import connection aerator of tank, the liquid outlet connection sedimentation basin of second blending tank.
2. MVR evaporations as claimed in claim 1 divide the pretreatment system of salt, it is characterised in that：The sedimentation basin by mixed zone,
Flocculation zone and settling zone composition, the bottom of the mixed zone is connected with the water inlet of flocculation zone bottom, in the flocculation zone
Equipped with guide shell, the guide shell is corresponding with the water inlet of flocculation zone, and the top side of the settling zone is equipped with water outlet, institute
The bottom for stating settling zone is equipped with mud discharging mouth, and the water outlet is equipped with comb block piece, the first stirring is equipped with the mixed zone
Device.
3. MVR evaporations as claimed in claim 2 divide the pretreatment system of salt, it is characterised in that：The is equipped with the flocculation zone
Two agitating devices, second agitating device are arranged on the inside of the guide shell.
4. MVR evaporations as claimed in claim 3 divide the pretreatment system of salt, it is characterised in that：The guide shell and settling zone
Adjacent side is equipped with partition plate, and the bottom of the partition plate and pond body is equipped with interval.
5. MVR evaporations as claimed in claim 2 divide the pretreatment system of salt, it is characterised in that：The bottom of the sedimentation basin is also
Equipped with inclined circulation pipe, the circulation pipe connects the water inlet of the flocculation zone, and the circulation pipe is equipped with circulating pump.
6. MVR evaporations as claimed in claim 1 divide the pretreatment system of salt, it is characterised in that：The filter plant includes sand
Equipment is filtered, the sand filtration apparatus is sequentially connected neutralization pond and refined filtration equipment, and wherein neutralization pond is acid-base accommodation equipment, refined filtration equipment
For filter.
7. MVR evaporations as claimed in claim 6 divide the pretreatment system of salt, it is characterised in that：The sand filtration apparatus includes bottom
Portion is the tank body of pyramidal structure, and the outside of the tank body is equipped with original water inlet, outlet of sewer and water purification outlet, the tank body
Inner top side is equipped with the collecting container connected with tank interior, and the bottom connection outlet of sewer of the collecting container is described to catchment
The top connection water purification outlet of container, the tank body is interior to be equipped with the water distributor being connected with original water inlet, is set in the middle part of the tank body
There is extraction pipe, be placed at the top of the extraction pipe in the collecting container, the bottom of the extraction pipe is equipped with elevator pump, the tank
It is higher than the casting bed of water distributor equipped with top surface in vivo.
8. MVR evaporations as claimed in claim 7 divide the pretreatment system of salt, it is characterised in that：The bottom of the collecting container
Equipped with the sand-washing device communicated therewith, the sand-washing device is the delivery pipe being set on the outside of extraction pipe, and delivery pipe is that longitudinal section is ripple
Shape wave.
9. MVR evaporations as claimed in claim 7 divide the pretreatment system of salt, it is characterised in that：The bottom side of the water distributor is also
Equipped with sand hopper is led, the shape for leading sand hopper is overall gradual widened cone tubular structure downwards.
10. MVR evaporations as claimed in claim 9 divide the pretreatment system of salt, it is characterised in that：The maximum for leading sand hopper is directly
Plane where footpath leads sand hopper and tank body less than the plane where the maximum gauge of the pyramidal structure of the bottom of the tank body
There are gap for inner wall.
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| CN201711375680.5A CN107935288A (en) | 2017-12-19 | 2017-12-19 | A kind of MVR evaporations divide the pretreatment system of salt |
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