CN204981134U - Adopt tubular micro -filtration membrane's hydrofluoric acid recycling processed system - Google Patents

Adopt tubular micro -filtration membrane's hydrofluoric acid recycling processed system Download PDF

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Publication number
CN204981134U
CN204981134U CN201520761129.4U CN201520761129U CN204981134U CN 204981134 U CN204981134 U CN 204981134U CN 201520761129 U CN201520761129 U CN 201520761129U CN 204981134 U CN204981134 U CN 204981134U
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China
Prior art keywords
tubular membrane
hydrofluoric acid
membrane component
communicated
thickener
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CN201520761129.4U
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Chinese (zh)
Inventor
朱建初
岳立毅
孙慕天
李王羽
袁维乾
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NANJING DANHENG TECHNOLOGY Co Ltd
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NANJING DANHENG TECHNOLOGY Co Ltd
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Abstract

The utility model relates to an adopt tubular micro -filtration membrane's hydrofluoric acid recycling processed system, handle wastewater tank, concentrated groove, tubular membrane assembly, filtration water tank, mud storage tank and filter press including adjusting, adjusting and handling wastewater tank and raw water water inlet intercommunication, wastewater tank's the delivery port and the water inlet intercommunication in concentrated groove are handled in the regulation, the delivery port in concentrated groove and tubular membrane assembly's water inlet intercommunication, the mode that the upon mediation of hydrofluoric acid waste liquid was handled through the overflow lets in concentrated groove, carries tubular membrane assembly to carry out solid -liquid separation with the circulating pump. Large -traffic waste liquid circulated between concentrated groove and tubular membrane assembly this moment, and passed through the outflow of drainage exit end, direct retrieval and utilization through the hydrofluoric acid that tubular membrane assembly oozes. Tubular membrane assembly has replaced traditional sedimentation tank and filtration equipment in this technology, no longer need deposit and the prefiltering, just can directly filter the separation that realizes solid particle and liquid.

Description

A kind of hydrofluoric acid recovery and processing system adopting tube type filter membrance
Technical field
The utility model relates to industrial effluent reusing process field, and especially a kind of tubular type that adopts is micro-
The hydrofluoric acid recovery and processing system of filter membrane.
Background technology
Hydrofluoric acid is the aqueous solution of hydrogen fluoride gas, and colourless, the corrosive liquid of being fuming, has play
Strong irritating smell.Because the ability combined between hydrogen atom and fluorine atom is relatively strong, make hydrogen
Fluoric acid can not ionize completely in water, so the hydrofluoric acid of lower concentration is a kind of weak acid in theory.
There is extremely strong corrodibility, can corroding metal, glass and siliceous object consumingly.
Along with the development of industrial society, hydrofluoric acid all occurs, at light at each industrial circle
The industry such as volt, metallurgy, intermetallic composite coating, glass, electronics, plating, these industries all need greatly
The hydrofluoric acid of amount is used for etching and cleaning, also produces a large amount of hydrofluoric acid waste liquid simultaneously.These give up
Acid source is wide, quantity large, purifying treatment and comprehensive utilization more difficult, and directly discharge can
Very serious pollution is caused to environment.Due to difference and the row of the hydrofluoric acid waste liquid content of generation
Difference high-volume, they are also different to the hazard rating of environment, but all can make the biology in environment
Trace Fluoride and compound thereof become high risks, even if also can cause pole to the human body of human and animal
Its serious consequence.Therefore, fully recycling all fluoride wastes is in industrial production one
Most important task.
Hydrofluoric acid is used in etching and cleaning process extensive in photovoltaic, metallurgy, glass industry
Use, used hydrofluoric acid waste liquid generally also deposits 1-10% effective concentration, but containing large
The suspended solids of amount and particulate matter, cause this waste liquid cannot reuse, and traditional precipitate and separate
Technique also cannot realize effectively being separated of suspended substance and hydrofluoric acid in hydrofluoric acid waste liquid.Because hydrogen fluorine
In acid waste liquid, suspended particulate matter concentration is very high, is not suitable for adopting conventional filter, and filter core, bag are filtered
Device retains, and is not also suitable for ultra-filtration and separation, simultaneously the precipitation threshold extreme difference of particulate matter, also not
Be applicable to adopting precipitation or air supporting mode to carry out solid-liquid separation.Because hydrofluoric acid will reclaim use, no
Medicament can be added, so traditional settling tank technique cannot be adopted to carry out solid-liquid separation.
Utility model content
Technical problem to be solved in the utility model is to provide one and does not need to add medicament with regard to energy
To the phosphorous acid group of the employing tube type filter membrance of the hydrofluoric acid solution filtered and recycled containing suspended substance
Waste Water Treatment, while this system obviates expensive medicament, also reduces sludge quantity.
For solving the problems of the technologies described above, the utility model realizes as follows: this practicality
Novel described a kind of hydrofluoric acid recovery and processing system adopting tube type filter membrance, comprises and regulates process
Wastewater trough, thickener, tubular membrane component, filtering trough, mud storage tank and plate-and-frame filter press;
Described adjustment process wastewater trough is communicated with raw water inlet, regulate the water outlet that processes wastewater trough and
The water inlet of thickener is communicated with; The water outlet of thickener and the inlet end of tubular membrane component connect
Logical; Described tubular membrane component is provided with filtered water outlet end and concentrate recirculation end, filtered water outlet end
Be communicated with filtering trough; Concentrate recirculation end is communicated with the inlet end of tubular membrane component, and dense water returns
Stream end is provided with sludge condensation liquid discharge pipe, and sludge condensation liquid discharge pipe and mud storage tank connect
Logical; Described mud storage tank rear is provided with plate-and-frame filter press, the disengaging water out of plate-and-frame filter press
Process wastewater trough with adjustment to be communicated with.
Described tubular membrane component is made up of the tube type filter membrance of cross flow filter, establishes in tubular membrane component
Be equipped with recycle pump.
Fluid level controller is provided with in described thickener.
The processing method that the hydrofluoric acid recovery and processing system of above-mentioned employing tube type filter membrance adopts
Comprise the steps:
1) pending former water is passed in adjustment process wastewater trough and carry out adjustment process;
2) mixed solution regulated in process wastewater trough is passed into thickener by the mode of overflow
In, thickener water capacity should be greater than the recycle pump water regain of 3 minutes, arranges in thickener
Fluid level controller is monitored in real time to liquid level;
3) divided carrying out solid-liquid in the water injection tubular membrane component in thickener by recycle pump
From, hydrofluoric acid waste liquid circulates between thickener and tubular membrane component;
4) hydrofluoric acid solution leached is deposited in filtering trough and is directly returned by tubular membrane component
With or be delivered to subsequent technique;
5) waste water flowing through tubular membrane component again will be passed in tubular membrane component and follow
Ring filters, and the concentrated solution containing mud produced in this process will by excretion to mud storage tank
In;
6) by plate-and-frame filter press, the concentrated solution in mud storage tank carry out sludge dewatering place
Reason, the adjustment process be again injected into foremost is given up by the disengaging water after sludge dewatering treatment
Second time process is carried out in tank; Mud cake after dehydration is focused on.
Positively effect of the present utility model: a kind of tube type filter membrance that adopts described in the utility model
Hydrofluoric acid recovery and processing system, hydrofluoric acid waste liquid upon mediation process passes into dense by the mode of overflow
Contracting groove, is transported to tubular membrane component with recycle pump and carries out solid-liquid separation.The now waste liquid of large discharge
Circulate between thickener and tubular membrane component, and lead to through the hydrofluoric acid that tubular membrane component oozes out
Filtering water outlet end flows out, direct reuse.In this technique, tubular membrane component instead of traditional sinking
Pond, shallow lake and filter plant, no longer need precipitation and pre-filtering, just directly can carry out filtration and realize solid
Body particle is separated with liquid.
Realize solid-liquid separation thoroughly in follow-up phase by plate-and-frame filter press, solia particle can
Recycle, the rate of recovery, can by solid waste resource recovery close to 100%; Institute in this system
The equipment washing related to is convenient, only needs conventional mineral acid, alkali and oxygenant, does not have
Discharge of wastewater limits.
Tubular membrane component, as the core component filtered, adopts tubular type large discharge cross flow filter, water
Stream is tangential flows through film surface at a high speed, washes away the effect on cleaning film surface while filtering in addition,
Pollutent is not easily accumulated, and face not easily pollutes, and is applicable to filtering the high concentrtion (suspension of the highest 5%
Solids concn) feed liquid close with pollutent particle diameter; Product water turbidity <1NTU after filter, can
Effectively to protect reverse osmosis.Tubular membrane component can replace the multiple tracks such as settling tank and filtration place completely
Reason and filter plant, do not need precipitation and pre-filtering, can directly carry out filtration realize solid particulate and
The separation of liquid, tubular membrane component is soft as the tubular membrane of the desalinating process such as reverse osmosis or vaporizer
Change process, greatly shorten simplifying technical process, decrease system footprint area, after improve
The rate of recovery of continuous equipment, and effectively extend its work-ing life.Compared to other membrane modules, tubular type
Membrane module has that intensity is good, the cleaning of rub resistance, resisting high-concentration medicament, can be dense at high suspended solids
Spend lower steady running, the premium propertiess such as influent quality fluctuation can be tolerated.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is done further specifically
Bright.
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, the hydrofluoric acid recycling of employing tube type filter membrance described in the utility model
System, comprises and regulates process wastewater trough, thickener, tubular membrane component, filtering trough, mud
Storage tank and plate-and-frame filter press; Described adjustment process wastewater trough is communicated with raw water inlet, adjustment place
The reason water outlet of wastewater trough is communicated with the water inlet of thickener; The water outlet of thickener and tubular membrane
The inlet end of assembly is communicated with; Described tubular membrane component is provided with filtered water outlet end and dense water returns
Stream end, filtered water outlet end is communicated with filtering trough; The water inlet of concentrate recirculation end and tubular membrane component
Mouth end is communicated with, and concentrate recirculation end is provided with sludge condensation liquid discharge pipe, and sludge condensation liquid discharges
Pipeline is communicated with mud storage tank; Described mud storage tank rear is provided with plate-and-frame filter press, sheet frame pressure
The disengaging water out of filter processes wastewater trough with adjustment and is communicated with.
Described tubular membrane component is made up of the tube type filter membrance of cross flow filter, establishes in tubular membrane component
Be equipped with recycle pump.
Fluid level controller is provided with in described thickener.
The processing method that the hydrofluoric acid recovery and processing system of above-mentioned employing tube type filter membrance adopts
Comprise the steps:
1) pending former water is passed in adjustment process wastewater trough and carry out adjustment process;
2) mixed solution regulated in process wastewater trough is passed in thickener by the mode of overflow, dense
Contracting groove water capacity should be greater than the recycle pump water regain of 3 minutes, arranges liquid level control in thickener
Device processed is monitored in real time to liquid level;
3) solid-liquid separation is carried out, hydrogen by recycle pump by the water injection tubular membrane component in thickener
Fluoric acid waste liquid circulates between thickener and tubular membrane component;
4) hydrofluoric acid solution leached is deposited in direct reuse or defeated in filtering trough by tubular membrane component
Deliver to subsequent technique;
5) waste water flowing through tubular membrane component again will be passed in tubular membrane component and be circulated throughout
Filter, the concentrated solution containing mud produced in this process will by excretion in mud storage tank;
6) by plate-and-frame filter press, sludge dewatering treatment is carried out to the concentrated solution in mud storage tank, mud
Disengaging water after processed enters in the adjustment process wastewater trough be again injected into foremost
The process of row second time; Mud cake after dehydration is focused on.

Claims (3)

1. adopt a hydrofluoric acid recovery and processing system for tube type filter membrance, it is characterized in that:
Comprise regulate process wastewater trough, thickener, tubular membrane component, filtering trough, mud storage tank and
Plate-and-frame filter press; Described adjustment process wastewater trough is communicated with raw water inlet, regulates process waste water
The water outlet of groove is communicated with the water inlet of thickener; The water outlet of thickener and tubular membrane component
Inlet end is communicated with; Described tubular membrane component is provided with filtered water outlet end and concentrate recirculation end,
Filtered water outlet end is communicated with filtering trough; The inlet end of concentrate recirculation end and tubular membrane component connects
Logical, concentrate recirculation end is provided with sludge condensation liquid discharge pipe, sludge condensation liquid discharge pipe with
Mud storage tank is communicated with; Described mud storage tank rear is provided with plate-and-frame filter press, plate-and-frame filter press
Disengaging water out processes wastewater trough with adjustment and is communicated with.
2. a kind of hydrofluoric acid of tube type filter membrance that adopts according to claim 1 reclaims
Treatment system, is characterized in that: described tubular membrane component is by the tube type filter membrance group of cross flow filter
Become, in tubular membrane component, be provided with recycle pump.
3. a kind of hydrofluoric acid of tube type filter membrance that adopts according to claim 1 reclaims
Treatment system, is characterized in that: be provided with fluid level controller in described thickener.
CN201520761129.4U 2015-09-29 2015-09-29 Adopt tubular micro -filtration membrane's hydrofluoric acid recycling processed system Active CN204981134U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520761129.4U CN204981134U (en) 2015-09-29 2015-09-29 Adopt tubular micro -filtration membrane's hydrofluoric acid recycling processed system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520761129.4U CN204981134U (en) 2015-09-29 2015-09-29 Adopt tubular micro -filtration membrane's hydrofluoric acid recycling processed system

Publications (1)

Publication Number Publication Date
CN204981134U true CN204981134U (en) 2016-01-20

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110482757A (en) * 2019-08-25 2019-11-22 武汉和时利自动化系统工程有限公司 A kind of on-line monitoring of pollution sources online detection instrument waste liquid and disposal system
CN111333211A (en) * 2018-12-18 2020-06-26 东睿材科股份有限公司 Tubular membrane filtration system and method of operation
CN112473377A (en) * 2020-12-18 2021-03-12 青岛润扬环境科技有限公司 Tubular micro-filtration circulating water tank

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111333211A (en) * 2018-12-18 2020-06-26 东睿材科股份有限公司 Tubular membrane filtration system and method of operation
CN110482757A (en) * 2019-08-25 2019-11-22 武汉和时利自动化系统工程有限公司 A kind of on-line monitoring of pollution sources online detection instrument waste liquid and disposal system
CN112473377A (en) * 2020-12-18 2021-03-12 青岛润扬环境科技有限公司 Tubular micro-filtration circulating water tank

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