CN107285430A - A kind of salt dissolving pond, chlor-alkali salt water treating system and chlor-alkali saline treatment technique - Google Patents
A kind of salt dissolving pond, chlor-alkali salt water treating system and chlor-alkali saline treatment technique Download PDFInfo
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- CN107285430A CN107285430A CN201610205484.2A CN201610205484A CN107285430A CN 107285430 A CN107285430 A CN 107285430A CN 201610205484 A CN201610205484 A CN 201610205484A CN 107285430 A CN107285430 A CN 107285430A
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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- Environmental & Geological Engineering (AREA)
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- Organic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention belongs to chlor-alkali field, more particularly to a kind of salt dissolving pond, chlor-alkali salt water treating system and chlor-alkali saline treatment technique.The salt dissolving pond that the present invention is provided is provided with brine outlet, including：The granularity for being laid on salt in the salt deposit of salt dissolving pond intracavity bottom, the salt deposit is 100~2000mm3；The brine collection pipe in the salt deposit is arranged on, the water side of the brine collection pipe is connected with the water inlet end of brine outlet, and multiple holes are provided with the brine collection pipe.The salt dissolving pond that the present invention is provided is provided with granularity for 500~1000mm3Salt deposit, the salt deposit can saturated brine enter brine outlet before it is filtered so that effectively reduce brine outlet discharge saturated brine in silt and tiny salt grain entrainment, it is to avoid the blocking of brine pipeline and upstream device.
Description
Technical field
The invention belongs to chlor-alkali field, more particularly to a kind of salt dissolving pond, chlor-alkali salt water treating system and chlor-alkali
Saline treatment technique.
Background technology
The method of industrial electricity consumption solution saturation NaCl solution produces NaOH, Cl2And H2, and using they as
Raw material produces a series of industry of chemical products, referred to as chlorine industry.Chlorine industry is most basic chemistry
One of industry, its product caustic soda and chlorine occupies critical role in national economy, except applied to chemistry
Industry itself is outer, be also widely used for light industry, textile industry, metallurgical industry, petrochemical industry with
And public utilities.
In chlorine industry, the preparation workshop section of saturated brine is the starting point of chlor-alkali production, is also chlor-alkali production
Middle to ensure that follow-up workshop section is normal, the crucial workshop section of Effec-tive Function, its task is by by small grain size (granularity
0.1~10mm3) crude salt electrolysis workshop section reclaim light salt brine (concentration is about 200-230g/L) in dissolve after,
Refined, supply meets the high-purity saturated brine of electrolysis workshop section needs.
In the preparation workshop section of saturated brine, the equipment of small grain size crude salt dissolving is referred to as salt dissolving pond, often at present
The salt dissolving pond seen is usually the square or circular pool of open-top.It is small in small grain size crude salt course of dissolution
Granularity crude salt is added at the top of salt dissolving pond first；Dissolved afterwards by the light salt brine in salt dissolving pond, what is obtained is full
And salt solution；Final saturation salt solution is extracted out from salt dissolving pond, into follow-up workshop section.Due to preparing saturated brine
Contain in crude salt and also contain a certain amount of undissolved tiny salt grain in a certain amount of silt, and salt dissolving pond, therefore
Silt and tiny salt can be inevitably carried secretly during saturated brine is extracted and is delivered to follow-up workshop section
Grain, so as to cause the blocking of brine pipeline and upstream device, the normal production to chlor-alkali is impacted.
The content of the invention
In view of this, it is an object of the invention to provide a kind of salt dissolving pond, chlor-alkali salt water treating system and chlorine
Alkali salt water treatment technology, the salt dissolving pond that the present invention is provided can effectively reduce the silt carried secretly in saturated brine
With tiny salt grain.
The invention provides a kind of salt dissolving pond, brine outlet is provided with, it is characterised in that including：
The granularity for being laid on salt in the salt deposit of salt dissolving pond intracavity bottom, the salt deposit is 100~2000mm3；
It is arranged on the brine collection pipe in the salt deposit, the water side of the brine collection pipe and brine outlet
Water inlet end be connected, be provided with multiple holes on the brine collection pipe.
It is preferred that, the brine collection pipe is arranged horizontally in salt deposit.
It is preferred that, the pond body in the salt dissolving pond and the height ratio of salt deposit are (4~5)：(0.5~3).
The invention provides a kind of chlor-alkali salt water treating system, including：
Salt dissolving pond described in above-mentioned technical proposal；
The saline water filter being connected with the brine outlet in the salt dissolving pond；
The exchange resin tower being connected with the brine outlet with the saline water filter.
It is preferred that, the saline water filter is filter candle filter.
It is preferred that, the chlor-alkali salt water treating system also includes salt solution cache slot, the salt solution cache slot
Brine inlet is connected with the brine outlet in salt dissolving pond, the brine outlet and brine filter of the salt solution cache slot
The brine inlet of device is connected.
It is preferred that, the chlor-alkali salt water treating system also includes salt hot-water heating system, the salt solution heating dress
The brine inlet put is connected with the brine outlet of saline water filter, the brine outlet of the salt hot-water heating system
It is connected with the brine inlet of exchange resin tower.
The invention provides a kind of chlor-alkali saline treatment technique, comprise the following steps:
A) it is, 0.1~10mm by granularity3Salt pour into the salt dissolving pond described in above-mentioned technical proposal；
B), light salt brine is added in the salt dissolving pond and carries out salt dissolving, saturated brine is obtained；
C), the saturated brine is filtered and ion exchange successively, salt solution after being handled.
It is preferred that, the light salt brine is added above the pond body in the salt dissolving pond.
It is preferred that, the temperature of the salt dissolving is 45~55 DEG C.
Compared with prior art, the invention provides a kind of salt dissolving pond, chlor-alkali salt water treating system and chlor-alkali
Saline treatment technique.The salt dissolving pond that the present invention is provided is provided with brine outlet, including：It is laid on salt dissolving pond
The granularity of salt is 100~2000mm in the salt deposit of intracavity bottom, the salt deposit3；It is arranged on the salt deposit
Interior brine collection pipe, the water side of the brine collection pipe is connected with the water inlet end of brine outlet, described
Multiple holes are provided with brine collection pipe.The salt dissolving pond that the present invention is provided can be used for salt dissolving, produce saturated salt
Water, the carrying out practically process in the salt dissolving pond is as follows：By crude salt to be dissolved, (usual granularity is first
0.1~10mm3) salt dissolving pond is poured into, crude salt falls on granularity for 100~2000mm3Salt deposit above, in grain
Spend for 100~2000mm3Salt deposit above formed one layer of new salt deposit；Light salt brine is added to salt dissolving afterwards
Chi Zhong, dissolving salt dissolving is carried out to the salt in salt dissolving pond, and saturated brine is made；Saturated brine is by granularity
100~2000mm3Salt deposit filtering after, salt dissolving pond is discharged by brine collection pipe, into subsequent handling.
Because granularity is 100~2000mm3Salt deposit in the granularity of salt be far longer than the granularity of crude salt, it is therefore light
Salt solution preferentially dissolves crude salt.In the running of salt dissolving pond, by controlling crude salt and light salt brine in salt dissolving pond
Addition, it is ensured that light salt brine reaches saturation before crude salt is completely dissolved, so as to ensure that light salt brine will not
It is 100~2000mm to granularity3Salt deposit in salt dissolved, make granularity be 100~2000mm3's
Salt deposit can be stabilized.The salt dissolving pond that the present invention is provided is provided with granularity for 500~1000mm3Salt deposit,
The salt deposit can be filtered before saturated brine enters brine outlet to it, be gone out so as to effectively reduce salt solution
The entrainment of silt and tiny salt grain in the saturated brine of mouthful discharge, it is to avoid brine pipeline and upstream device
Block.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to reality
The accompanying drawing used required for applying in example or description of the prior art is briefly described, it should be apparent that, below
Accompanying drawing in description is only embodiments of the invention, for those of ordinary skill in the art, not
On the premise of paying creative work, other accompanying drawings can also be obtained according to the accompanying drawing of offer.
Fig. 1 is the structural representation in salt dissolving pond provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the invention, and
The embodiment being not all of.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under the premise of creative work, belong to the scope of protection of the invention.
The invention provides a kind of salt dissolving pond, brine outlet is provided with, it is characterised in that including：
It is laid on the salt deposit of salt dissolving pond intracavity bottom；The granularity of salt is 100~2000mm in the salt deposit3；
It is arranged on the brine collection pipe in the salt deposit；The water side of the brine collection pipe and brine outlet
Water inlet end be connected；Multiple holes are provided with the brine collection pipe.
Referring to Fig. 1, during Fig. 1 is the structural representation in salt dissolving pond provided in an embodiment of the present invention, Fig. 1,1 is
Salt dissolving pond, 2 be brine outlet, 3 be salt deposit, 4 be brine collection pipe.
The salt dissolving pond 1 that the present invention is provided is provided with brine outlet 2, for discharging the saturated salt in salt dissolving pond 1
Water.In one embodiment that the present invention is provided, the pond body in salt dissolving pond 1 is highly 4~5m；Carried in the present invention
In neck one embodiment of confession, the pond body in salt dissolving pond 1 is highly 4.5~5m.The present invention is to brine outlet 2
Set location is not particularly limited, in one embodiment that the present invention is provided, being arranged on of brine outlet 2
The sidewall bottom in salt pond 1.
In the present invention, the granularity that the intracavity bottom in salt dissolving pond 1 is provided with salt in salt deposit 3, salt deposit 3 is
100~2000mm3；In one embodiment that the present invention is provided, the granularity of salt is 200~1500 in salt deposit 3
mm3；In another embodiment that the present invention is provided, the granularity of salt is 500~1000mm in salt deposit 33。
In the present invention, the granularity refers to the volume of single salt grain.In one embodiment that the present invention is provided,
The pond body in salt dissolving pond 1 is (4~5) with the height ratio of salt deposit 3：(0.5~3)；The present invention provide it is another
In individual embodiment, the pond body in salt dissolving pond 1 is (4.5~5) with the height ratio of salt deposit 3：(1~2)；In this hair
In the other embodiment of bright offer, the pond body in salt dissolving pond 1 is (4.5~5) with the height ratio of salt deposit 3：
(1.5~1.6).In one embodiment that the present invention is provided, the height of salt deposit 3 is 0.5~3m；In this hair
In another embodiment of bright offer, the height of salt deposit 3 is 1~2m；The other embodiment provided in the present invention
In, the height of salt deposit 3 is 1.5~1.6m.
In the present invention, brine collection pipe 4, the water side of brine collection pipe 4 and salt solution are provided with salt deposit 3
The water inlet end of outlet 2 is connected, and multiple holes are provided with brine collection pipe 4.In the present invention, brine collection
Pipe 4 is for collecting the saturated brine filtered by salt deposit 3, and the saturated brine of collection being delivered into salt solution
Mouth 2.Size of the invention to brine collection pipe 4, and the size and number in upper hole are not particularly limited,
Those skilled in the art are designed according to actual condition.In one embodiment that the present invention is provided,
A diameter of 50~300mm of brine collection pipe 4；In another embodiment that the present invention is provided, salt solution is received
A diameter of 100~200mm of collector 4；In the other embodiment that the present invention is provided, brine collection pipe 4
A diameter of 150~180mm.In one embodiment that the present invention is provided, the hole set on brine collection pipe 4
Aperture be 5~30mm；In another embodiment that the present invention is provided, set on brine collection pipe 4
The aperture in hole is 10~20mm；In the other embodiment that the present invention is provided, set on brine collection pipe 4
The aperture in hole is 15~18mm.In one embodiment that the present invention is provided, adjacent two on brine collection pipe 4
The spacing in individual hole is 50~200mm；In another embodiment that the present invention is provided, on brine collection pipe 4
The spacing in two neighboring hole is 100~150mm.
The salt dissolving pond that the present invention is provided can be used for salt dissolving, produce saturated brine.The specific fortune in the salt dissolving pond
Row process is as follows：By crude salt to be dissolved, (usual granularity is 0.1~10mm first3) salt dissolving pond is poured into,
Crude salt falls on the top of salt deposit 3, and one layer of new salt deposit is formed in the top of salt deposit 3；Light salt brine is added to afterwards
In salt dissolving pond, dissolving salt dissolving is carried out to the salt in salt dissolving pond, saturated brine is made；Saturated brine is through supersalt
After the filtering of layer 3, salt dissolving pond is excluded by brine collection pipe 4, into subsequent handling.Due to the salt in salt deposit 3
Granularity be far longer than the granularity of crude salt, therefore light salt brine preferentially dissolves the new salt of the top crude salt formation of salt deposit 3
Layer.In the running of salt dissolving pond, by the addition for controlling crude salt and light salt brine in salt dissolving pond, it is ensured that
Light salt brine reaches saturation before crude salt is completely dissolved, so as to ensure that light salt brine will not be to the granularity in salt deposit 3
For 100~2000mm3Salt dissolved, be stabilized salt deposit 3.The salt dissolving pond that the present invention is provided
Salt deposit 3 is provided with, the salt deposit can be filtered before saturated brine enters brine outlet to it, Neng Gouyou
Effect reduces the entrainment of silt and tiny salt grain in the saturated brine that brine outlet is discharged, it is to avoid brine pipeline
With the blocking of upstream device.
The invention provides a kind of chlor-alkali salt water treating system, including：
Salt dissolving pond described in above-mentioned technical proposal；
The saline water filter being connected with the brine outlet in the salt dissolving pond；
The exchange resin tower being connected with the brine outlet with the saline water filter.
The chlor-alkali salt water treating system that the present invention is provided includes the salt dissolving pond, saline water filter and ion and handed over
Change resin tower.Wherein, the brine outlet in the salt dissolving pond is connected with the brine inlet of the saline water filter
Connect, the brine outlet of the saline water filter is connected with the brine inlet of the exchange resin tower.
In one embodiment that the present invention is provided, the saline water filter is filter candle filter.At this
Invent in the one embodiment provided, the filter cloth surface of the filter candle filter is coated with chemical cellulose.
In one embodiment that the present invention is provided, the chemical cellulose is in the coated weight of the filter cloth surface
300~500g/m2.In one embodiment that the present invention is provided, the filter cloth area of the filter candle filter
For 30~50m2.In one embodiment that the present invention is provided, the filter stick quantity of the filter candle filter is
70~80.
In one embodiment that the present invention is provided, the chlor-alkali salt water treating system also includes salt solution and cached
Groove, the salt solution cache slot is arranged between salt dissolving pond and saline water filter, for storing the discharge of salt dissolving pond
Saturated brine.The brine inlet of the salt solution cache slot is connected with the brine outlet in salt dissolving pond, the salt
The brine outlet of water cache slot is connected with the brine inlet of saline water filter.The reality provided in the present invention
Apply in example, heat exchanger is additionally provided with the connecting line of the salt dissolving pond and salt solution cache slot, for treating
The saturated brine that the light salt brine and salt dissolving pond for adding salt dissolving pond are discharged carries out heat exchange.
In one embodiment that the present invention is provided, the chlor-alkali salt water treating system also includes salt solution and heated
Device, the salt hot-water heating system is arranged between saline water filter and exchange resin tower, for pair
The saturated brine of exchange resin tower to be entered is heated.The brine inlet of the salt hot-water heating system
It is connected with the brine outlet of saline water filter, the brine outlet and amberlite of the salt hot-water heating system
The brine inlet of fat tower is connected.
In one embodiment that the present invention is provided, the chlor-alkali salt water treating system also includes satisfying after processing
And salt solution reservoir, the brine inlet of saturated brine storage tank and the exchange resin tower after the processing
Brine outlet is connected, for storing the saturated brine handled by exchange resin tower.
The chlor-alkali salt water treating system that the present invention is provided can be used for high-purity chlor-alkali salt solution, the chlor-alkali
The carrying out practically process of salt water treating system is as follows：It is 0.1~10mm first by granularity3Salt pour into salt dissolving
Pond；Then light salt brine is added in the salt dissolving pond and carries out salt dissolving, obtain saturated brine；It is described afterwards full
Saline water filter filtering and exchange resin tower ion exchange, salt after being handled are sequentially passed through with salt solution
Water.
The chlor-alkali salt water treating system that the present invention is provided is provided with the salt dissolving pond of particular design, and the salt dissolving pond can
Silt and tiny salt grain in effectively catching saturated brine, it is to avoid it is blocked up to brine pipeline and upstream device
Plug, so as to ensure chlor-alkali salt water treating system stabilization, Effec-tive Function.
The invention provides a kind of chlor-alkali saline treatment technique, comprise the following steps:
A) it is, 0.1~10mm by granularity3Salt pour into the salt dissolving pond described in above-mentioned technical proposal；
B), light salt brine is added in the salt dissolving pond and carries out salt dissolving, saturated brine is obtained；
C), the saturated brine is filtered and ion exchange successively, salt solution after being handled.
It is 0.1~10mm first by granularity in the chlor-alkali saline treatment technique that the present invention is provided3Salt fall
Enter described salt dissolving pond, granularity is 0.1~10mm3Salt fall in salt dissolving pond above the salt deposit, in institute
State and one layer of new salt deposit is formed above salt deposit.The granularity is 0.1~10mm in the present invention3Salt it is preferred
For vacuum crystallization well mine salt.The granularity of the vacuum crystallization well mine salt is preferably 0.1~1 in the present invention
mm3, more elect 0.2~0.6mm as3.In the present invention, the new salt deposit and the height of the pond body in salt dissolving pond
Degree is than being preferably (2~5)：(4~6), more preferably (2.5~3)：(4.5~5).Carried in the present invention
In one embodiment of confession, the highly preferred of the new salt deposit is 2~5m, more preferably 2.5~3m.
Then, light salt brine is added in the salt dissolving pond and carries out salt dissolving.In the present invention, the light salt brine
It is that saturation NaCl dissolves the low concentration salt solution produced after Electrowinning NaOH, also known as poor salt solution.In the present invention
In, the light salt brine is preferably added above the pond body in the salt dissolving pond, i.e., the present invention is using following current dissolving
Mode carry out salt dissolving.The addition of the light salt brine is not particularly limited the present invention, ensure that light
Salt solution is being completely dissolved granularity for 0.1~10mm3Salt before reach saturation.In the present invention, institute
The temperature for stating salt dissolving is preferably 45~55 DEG C, more preferably 45~50 DEG C.In the present invention, by regulationization
Granularity is 0.1~10mm3Salt and light salt brine addition and salt dissolving temperature, make the granularity in salt dissolving pond be
0.1~10mm3Salt the salt deposit with certain altitude, the salt deposit and salt dissolving pond are formed in salt dissolving pond
The height of pond body is than being preferably (2~5)：(4~6), more preferably (2.5~3)：(4.5~5).
In one embodiment that the present invention is provided, the salt deposit it is highly preferred be 2~5m height, more preferably
2.5~3m height.During salt dissolving, light salt brine constantly dissolves granularity for 0.1~10mm3Salt, finally
Obtain saturated brine.
Obtain after saturated brine, saturated brine is filtered and ion exchange successively.Wherein, the filtering
It is preferred that being carried out in saline water filter；The ion exchange is carried out preferably in exchange resin tower.
In the present invention, during being filtered using saline water filter, the inlet pressure of the saline water filter
For 5.5~6bar, pressure difference≤1.2bar of the saline water filter, the water-carrying capacity design of the saline water filter
For 50~55m3/h。
In the present invention, the saturated brine after the filtering is preferably heated to 60~70 DEG C, is more preferably heated to
After 65 DEG C, ion exchange is being carried out.After ion-exchange treatment is finished, salt solution after being handled.The processing
Salt solution can be used for Electrowinning NaOH, Cl afterwards2And H2。
The chlor-alkali saline treatment technique that the present invention is provided carries out salt dissolving, the change using the salt dissolving pond of particular design
Salt pond can be in effectively catching saturated brine silt and tiny salt grain, it is to avoid it sets to brine pipeline and downstream
Standby blocking, so as to ensure chlor-alkali saline treatment process stabilizing, Effec-tive Function.
For the sake of becoming apparent from, it is described in detail below by following examples.
Embodiment 1
Salt dissolving pond
A kind of salt dissolving pond that the present embodiment is provided, the salt dissolving pond is the square pond body that top is open by design,
The length of pond body is respectively 10m × 6.8m × 4.5m；Pond body sidewall bottom is provided with brine outlet；
The granularity that pond body intracavity bottom is equipped with salt in salt deposit, salt deposit is 500~1000mm3, salt layer height is about
1.5m；The brine collection pipe being provided with salt deposit, a diameter of 150mm of brine collection pipe, brine collection
The water side of pipe is connected with the water inlet end of brine outlet, and 96 holes are provided with brine collection pipe, and salt solution is received
A diameter of 15mm in hole on collector, the spacing of holes is 100mm.
Embodiment 2
Chlor-alkali salt water treating system
A kind of chlor-alkali salt water treating system that the present embodiment is provided, salt dissolving pond of the system including embodiment 1,
Saline water filter, heat exchanger, salt solution cache slot, salt hot-water heating system, exchange resin tower and processing
Saturated brine storage tank afterwards.Wherein, the brine outlet in the salt dissolving pond of the embodiment 1 and the saline water filter
Brine inlet be connected；The saline water filter is filter candle filter, filters the filter cloth of candle filter
Area is 48.1m2, filter stick quantity is 74, and filter cloth surface applies 500g/m2Chemical cellulose, filter process
In inlet pressure be 5.5bar, pressure difference≤1.2bar, water-carrying capacity is designed as 55m3/h；The brine filter
The brine outlet of device is connected with the brine inlet of salt solution cache slot, the salt dissolving pond and salt solution cache slot
Heat exchanger is provided with connecting line, for satisfying that the light salt brine to salt dissolving pond to be added and salt dissolving pond are discharged
Heat exchange is carried out with salt solution；The brine outlet of the salt solution cache slot and the salt solution of exchange resin tower enter
Mouth is connected, and salt hot-water heating system is provided between the saline water filter and exchange resin tower；Institute
Exchange resin tower is stated for conventional ion exchange resin tower；The brine outlet of the exchange resin tower
It is connected with the brine inlet of saturated brine storage tank after processing.
Embodiment 3
Chlor-alkali saline treatment technique
At a kind of chlor-alkali saline treatment technique that the present embodiment is provided, the chlor-alkali salt solution provided using embodiment 2
Reason system produces the saturated aqueous common salt for chlorine industry, and the process is specially：
It is 0.2~0.6mm first by granularity3Vacuum crystallization well mine salt pour into the salt dissolving pond, vacuum knot
It is 500~1000mm that brilliant well mine salt, which falls on granularity in salt dissolving pond,3Salt deposit above, granularity be 500~1000
mm3Salt deposit above formed one layer of new salt deposit.
Then, by light salt brine from the salt dissolving pond is added above the pond body in the salt dissolving pond, at 50 DEG C
Carry out salt dissolving.By adjusting granularity for 0.2~0.6mm3Vacuum crystallization well mine salt and light salt brine addition,
It is 0.2~0.6mm to make granularity in salt dissolving pond3Vacuum crystallization well mine salt formed in salt dissolving pond height be 2.5m
The salt deposit of left and right.During salt dissolving, light salt brine constantly dissolves granularity for 0.2~0.6mm3Vacuum crystallization well
Rock salt, finally gives saturated brine.
Obtain after saturated brine, saturated brine is 500~1000mm via granularity3Salt deposit after enter salt solution
Collecting pipe, and from the outflow of brine collection pipe, into saline water filter.Saturated brine is in saline water filter
Filtered, the inlet pressure of the saline water filter is set to 5.5~6bar, the pressure of the saline water filter
Difference is set to≤1.2bar, and the water-carrying capacity of the saline water filter is set to 50~55m3/h.Through brine filter
Saturated brine after device filtering enters salt solution cache slot, and is flowed out from the brine outlet of salt solution cache slot, warp
Salt solution heating devices heat is to after 65 DEG C, into exchange resin tower.Saturated brine is in amberlite
Ion exchange is carried out in fat tower, after ion-exchange treatment is finished, salt solution after being handled.Salt after the processing
Water can be used for Electrowinning NaOH, Cl2And H2。
According to the handling process of the present embodiment, chlor-alkali salt water treating system described in continuous service is after 72 hours,
Saturated brine transfer pipeline, saline water filter and the exchange resin tower of chlor-alkali salt water treating system are entered
Row checks that salt solution transfer pipeline, saline water filter and exchange resin tower are not blocked.Explanation
Silt in the saturated brine that the brine outlet that the salt dissolving pond that the present invention is provided can effectively reduce salt dissolving pond is discharged
With the entrainment of tiny salt grain, it is to avoid the blocking of brine pipeline and salt dissolving pond upstream device.
Comparative example
With reference to the handling process of embodiment 3, granularity is not provided with salt dissolving pond for 500~1000mm3Salt
Layer, is only 0.2~0.6mm using granularity3Vacuum crystallization well mine salt, operation 4 hours after, detect salt dissolving
Contain tiny salt grain in pond outlet salt solution, while also occur in that blocking in heat exchanger, brine flow by
50m3/ h is gradually reduced, and flow is less than 35m after 2 hours3/ h, uses water backwashing brine collection pipe after shutdown
With heat exchanger and pipeline, turn back on rear flow and recover again, after continuing operation again 2 hours, flow is reduced to
32m3/h.Found by repeatedly test, granularity is not provided with salt dissolving pond for 500~1000mm3Salt deposit
The entrainment of serious tiny salt grain can be produced, causes the equipment such as pipeline, heat exchanger to block.
Described above is only the preferred embodiment of the present invention, it is noted that for the general of the art
For logical technical staff, under the premise without departing from the principles of the invention, some improvement and profit can also be made
Decorations, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of salt dissolving pond, is provided with brine outlet, it is characterised in that including：
The granularity for being laid on salt in the salt deposit of salt dissolving pond intracavity bottom, the salt deposit is 100~2000mm3；
It is arranged on the brine collection pipe in the salt deposit, the water side of the brine collection pipe and brine outlet
Water inlet end be connected, be provided with multiple holes on the brine collection pipe.
2. salt dissolving pond according to claim 1, it is characterised in that the brine collection pipe is along level
Direction is arranged in salt deposit.
3. salt dissolving pond according to claim 1, it is characterised in that the pond body and salt in the salt dissolving pond
The height ratio of layer is (4~5)：(0.5~3).
4. a kind of chlor-alkali salt water treating system, including：
Salt dissolving pond described in any one of claims 1 to 3；
The saline water filter being connected with the brine outlet in the salt dissolving pond；
The exchange resin tower being connected with the brine outlet with the saline water filter.
5. system according to claim 4, it is characterised in that the saline water filter is filter stick formula
Filter.
6. system according to claim 4, it is characterised in that described also including salt solution cache slot
The brine inlet of salt solution cache slot is connected with the brine outlet in salt dissolving pond, and the salt solution of the salt solution cache slot goes out
Mouth is connected with the brine inlet of saline water filter.
7. system according to claim 4, it is characterised in that also including salt hot-water heating system, institute
State the brine inlet of salt hot-water heating system with the brine outlet of saline water filter to be connected, the salt solution heating dress
The brine outlet put is connected with the brine inlet of exchange resin tower.
8. a kind of chlor-alkali saline treatment technique, comprises the following steps:
A) it is, 0.1~10mm by granularity3Salt pour into the salt dissolving pond described in any one of claims 1 to 3；
B), light salt brine is added in the salt dissolving pond and carries out salt dissolving, saturated brine is obtained；
C), the saturated brine is filtered and ion exchange successively, salt solution after being handled.
9. technique according to claim 8, it is characterised in that the light salt brine is from the salt dissolving pond
Pond body above add.
10. technique according to claim 8, it is characterised in that the temperature of the salt dissolving is
45~55 DEG C.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6126510A (en) * | 1984-07-17 | 1986-02-05 | Aizaburo Yagishita | Purification of saline water for electrolysis |
| CN2109241U (en) * | 1992-01-13 | 1992-07-08 | 赵永贵 | Filting pond |
| CN101397152A (en) * | 2007-09-28 | 2009-04-01 | 旭化成化学株式会社 | Brine treatment method |
| CN202356035U (en) * | 2011-12-08 | 2012-08-01 | 中盐金坛盐化有限责任公司 | Salt dissolving device used for producing saturated brine |
| CN102730722A (en) * | 2012-07-17 | 2012-10-17 | 河北工业大学 | Method for preparing refined strong brine by removing potassium from strong brine |
| CN204656355U (en) * | 2015-05-14 | 2015-09-23 | 四川东坡中国泡菜产业技术研究院 | A kind of automation salt device |
| CN105126659A (en) * | 2015-07-31 | 2015-12-09 | 许继集团有限公司 | Solution continuous production system and solution production method |
-
2016
- 2016-04-05 CN CN201610205484.2A patent/CN107285430A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6126510A (en) * | 1984-07-17 | 1986-02-05 | Aizaburo Yagishita | Purification of saline water for electrolysis |
| CN2109241U (en) * | 1992-01-13 | 1992-07-08 | 赵永贵 | Filting pond |
| CN101397152A (en) * | 2007-09-28 | 2009-04-01 | 旭化成化学株式会社 | Brine treatment method |
| CN202356035U (en) * | 2011-12-08 | 2012-08-01 | 中盐金坛盐化有限责任公司 | Salt dissolving device used for producing saturated brine |
| CN102730722A (en) * | 2012-07-17 | 2012-10-17 | 河北工业大学 | Method for preparing refined strong brine by removing potassium from strong brine |
| CN204656355U (en) * | 2015-05-14 | 2015-09-23 | 四川东坡中国泡菜产业技术研究院 | A kind of automation salt device |
| CN105126659A (en) * | 2015-07-31 | 2015-12-09 | 许继集团有限公司 | Solution continuous production system and solution production method |
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