CN203529951U - Sodium chloride recycling and crystallizing device with pre-mixing tank - Google Patents
Sodium chloride recycling and crystallizing device with pre-mixing tank Download PDFInfo
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- CN203529951U CN203529951U CN201320836008.2U CN201320836008U CN203529951U CN 203529951 U CN203529951 U CN 203529951U CN 201320836008 U CN201320836008 U CN 201320836008U CN 203529951 U CN203529951 U CN 203529951U
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- sodium chloride
- outlet
- mixing groove
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- chloride solution
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Abstract
The utility model discloses a sodium chloride recycling and crystallizing device with a pre-mixing tank. A sodium chloride solution to be concentrated is accommodated in a sodium chloride solution storage tank; the sodium chloride solution is fed into a pre-mixing tank through a first circulation pump; at the same time, the sodium chloride solution overflowing from a crystallization separation chamber is also fed into the pre-mixing tank; the mixed sodium chloride solution is extracted from the pre-mixing tank through a second circulation pump and is pressed into the tube pass of a heat exchanger; heat transfer is performed on the mixed sodium chloride solution and steam in the tube pass so as to raise temperature, and the heated sodium chloride solution is ejected into an evaporation chamber. According to the sodium chloride recycling and crystallizing device, since the mixing tank is arranged, the problem of vibration at a confluence point of circulation pumps due to the fact that the temperatures of two paths of solutions are different in the conventional sodium chloride recycling and crystallizing device is effectively solved; moreover, since the steam is reused, the operation cost and environment pollution are reduced; since a defoaming plate is arranged at the top of the evaporation chamber, residual organisms in the sodium chloride solution are effectively prevented from entering a vacuum system or a steam compressor, thereby prolonging the service life of equipment.
Description
Technical field
The utility model relates to sodium-chlor crystallization technique field, is specifically related to a kind of sodium-chlor with pre-mixing groove and reclaims crystallization apparatus.
Background technology
Preparing silicon sol has different approach, and the most frequently used method has ion exchange method, silica flour one one-step hydrolysis method, electroosmose process etc.In the factory effluent of ion exchange method production silicon sol, contain a large amount of sodium-chlor, domesticly never have cost-effective method and reclaim, directly enter waste water treatment plant or after neutralization precipitation, enter attached water body, all can seriously jeopardize the normal operation of Sewage Plant and pollute the water surrounding of Its Adjacent Waters.
Sodium-chlor after recovery is a kind of industrial chemicals of basis, can be widely used in the industries such as chemical industry, material, weaving, printing and dyeing, if sodium chloride content height also can cause the wasting of resources in waste water.Therefore the sodium-chlor that how effectively to reclaim silicon sol factory effluent is the problem that needs solution.
Publication number is the utility application of CN203095629U, discloses a kind of sodium-chlor and has reclaimed crystallization apparatus, and this device, comprises sodium chloride solution storage tank, recycle pump, interchanger, evaporator room, Crystallization Separation chamber, vapour compressor and water of condensation storage tank.During use, the sodium chloride solution of processing to be concentrated is contained in described sodium chloride solution storage tank, squeezes into the tube side of interchanger by recycle pump, in interchanger with shell side in steam heat-exchanging to improve temperature, the sodium chloride solution after intensification sprays in evaporator room.In evaporator room, a part of water is with the top exit of vapor form effusion evaporator room, the sodium chloride solution that another part concentration improves enters Crystallization Separation chamber by the outlet at bottom of evaporator room, in Crystallization Separation room temp, reduce, have partial oxidation sodium crystallization, the sodium-chlor of this part crystallization discharges by the bottom discharge mouth of Crystallization Separation chamber.In order to utilize and reclaim the steam of the top exit of effusion evaporator room, this part steam is compressed to intensification by vapour compressor, then enter the shell side of interchanger for heating the sodium chloride solution from sodium chloride solution storage tank.
This device by the heating concentration and recovery sodium-chlor that adopts more, by recycling, heating the steam producing in concentration process heats, reduced running cost, and further adopt vacuum system, the steam producing in heating concentration process is discharged and adopted evaporator room, accelerate the speed of evaporation concentration, by supporting Controlling System, can realize unattended operation, operation, safe and reliable continuously.
But also there is following problem in this device:
(1) in this device, by the overflow port of Crystallization Separation chamber sidewall and the outlet of sodium chloride solution storage tank, after confluxing near recycle pump, enter recycle pump, because the sodium chloride solution in Crystallization Separation chamber and sodium chloride solution storage tank exists temperature head, make the pipe vibration at place, confluence;
(2) from certain temperature that has of heat exchanger shell pass outlet outflow, directly drain and cause energy dissipation;
(3) owing to can remainingly having a small amount of organism in silicon sol production process, when heating concentrates, easily produce and contain organic bubble, this bubble enters in vacuum apparatus and easily causes vacuum apparatus to pollute, and extremely difficult cleaning.
Summary of the invention
For the deficiencies in the prior art, the utility model provides a kind of sodium-chlor with pre-mixing groove to reclaim crystallization apparatus, and this sodium-chlor reclaims crystallization apparatus can reduce consumption, good stability, and can effectively prevent from bubbling enters vacuum apparatus, can replace existing heating, concentrating unit.
A kind of sodium-chlor with pre-mixing groove reclaims crystallization apparatus, comprise sodium chloride solution storage tank, the first recycle pump, the second recycle pump, pre-mixing groove, interchanger, evaporator room, Crystallization Separation chamber, vacuum system, vapour compressor and water of condensation storage tank, described pre-mixing groove has two entrances and an outlet, the sidewall of described Crystallization Separation chamber is provided with overflow port, is communicated with an entrance of pre-mixing groove;
Wherein, the outlet of described sodium chloride solution storage tank connects the entrance of described the first recycle pump, the first circulation pump outlet connects an entrance of described pre-mixing groove, another entrance of described pre-mixing groove is communicated with the overflow port of Crystallization Separation chamber sidewall, the outlet of described pre-mixing groove is communicated with the entrance of described the second recycle pump, described the second circulation pump outlet connects the tube side entrance of described interchanger, the tube side outlet of described interchanger connects the sidewall feeding mouth of described evaporator room, the outlet at bottom of described evaporator room is communicated with described Crystallization Separation chamber, described Crystallization Separation chamber has bottom discharge mouth,
The top of described evaporator room is provided with two outlets, and an outlet is communicated to described vacuum system, and another outlet is communicated with the entrance of described vapour compressor, and the outlet of described vapour compressor is communicated with the shell side entrance of described interchanger;
The outer heating jacket that is arranged with of described sodium chloride solution storage tank, the shell side outlet of described interchanger is communicated with the entrance of described heating jacket, and the outlet of described heating jacket is communicated with described water of condensation storage tank.
When the utility model sodium-chlor reclaims crystallization apparatus use, the sodium chloride solution of processing to be concentrated is contained in described sodium chloride solution storage tank, by the first recycle pump, squeeze in pre-mixing groove, the sodium chloride solution overflowing from Crystallization Separation chamber also flows into pre-mixing groove simultaneously, the second recycle pump extracts mixed sodium chloride solution from pre-mixing groove, and be pressed into the tube side of interchanger, in interchanger with shell side in steam heat-exchanging to improve temperature, the sodium chloride solution after intensification sprays in evaporator room.By tempering tank is set, effectively avoided place, the recycle pump confluence vibration problem causing due to two-way solution temperature difference in existing sodium-chlor recovery crystallization apparatus.
In the present invention, also the first recycle pump can be set, utilize the hydraulic pressure difference of pre-mixing groove and interchanger that the sodium chloride solution in pre-mixing groove is pressed in interchanger.
In evaporator room, a part of water is overflowed from the top of evaporator room with vapor form, the sodium chloride solution that another part concentration improves enters Crystallization Separation chamber by the outlet at bottom of evaporator room, in Crystallization Separation room temp, reduce, have partial oxidation sodium crystallization, the sodium-chlor of this part crystallization discharges by the bottom discharge mouth of Crystallization Separation chamber.In the present invention, for guaranteeing, fast water vapour is discharged, adopt vacuum system to extract water vapour out evaporator room.The gas that is difficult to compression can also be discharged in addition, improve the working efficiency of vapour compressor.
In order to utilize and reclaim the steam of the top exit of effusion evaporator room, this part steam is compressed to intensification by vapour compressor, then enter the shell side of interchanger for heating the sodium chloride solution from sodium chloride solution storage tank.
In order further to improve energy utilization rate, the outer heating jacket that is arranged with of described sodium chloride solution storage tank, and be connected with the shell side outlet of interchanger, the water that adopts interchanger to discharge is the heating of sodium chloride solution storage tank.
For what continue, to whole system, provide heat energy, as preferably, the periphery of described evaporator room is with heating jacket.In heating jacket, can pass through steam, the forms such as deep fat or electrically heated, can further improve the steam output in evaporator room, guarantee concentrated effect.
The top of described evaporator room is provided with water eliminator and de-bubble plate from top to bottom successively, the some slice stainless (steel) wires of described water eliminator for closely arranging; Described de-bubble plate is provided with some pores, and the inner edge of each pore is provided with the spine of downward bending.For fear of sodium chloride solution and bubble, enter vapour compressor and vacuum system, guaranteed that vapour compressor and vacuum system normally work, water eliminator and de-bubble plate are set, can prevent that sodium chloride solution and bubble from entering vapour compressor and vacuum system.On de-bubble plate, several inner edges are provided with the pore of the spine of downward bending, and spine can effectively be poked bubble.The feeding mouth of evaporator room sidewall is in de-bubble plate below.
When heating is concentrated, the water vapour of generation first could be discharged through de-bubble plate, if the pore therefore on de-bubble plate is too little, causes the water vapour velocity of discharge excessively slow, and thickening efficiency is heated in impact, and too large, bubble has directly passed through again, can not play the effect of removal bubble.Therefore while pore opening being set, need to taking into account and remove bubble and two factors of exhaust, to the shape of pore without particular requirement.As preferably, described pore is circular hole, and diameter is 1～3cm.
Bubble ascent direction not necessarily clock keeps vertically upward, and in order to poke more bubbles as far as possible, the described spine downwards angle of bending is 45～50 degree.
As preferably, the length of described spine is 0.5～1.5cm.
Each pore inner edge is evenly distributed with 3～10 spines.
Described sodium-chlor reclaims crystallization apparatus and is also provided with scraper centrifugal machine, and the bottom discharge mouth of described Crystallization Separation chamber is connected with the feeding mouth of scraper centrifugal machine.At regular intervals, the bottom discharge mouth automatic discharging of Crystallization Separation chamber, emits the sodium chloride crystal of separating out, and scraper centrifugal machine can receive material automatic centrifugation, discharging, is convenient to improve level of automation and produces continuously.
The outlet at bottom of described evaporator room is tubulose, inserts and extend to the bottom of Crystallization Separation chamber.The bottom that can make directly to enter through concentrated sodium chloride solution in evaporator room Crystallization Separation chamber is set like this, and material-heat-exchanging that can also be indoor with Crystallization Separation in flow process, improves crystallization amount, has also improved the recycled in its entirety rate of sodium-chlor.
The bottom of described Crystallization Separation chamber is provided with whipping appts.Concentrated sodium chloride solution directly enters the bottom of Crystallization Separation chamber, can cause the relative concentration Crystallization Separation chamber of bottom sodium-chlor of Crystallization Separation chamber high, easier precipitated sodium chloride crystal, and Crystallization Separation chamber just emits the crystal of separating out at regular intervals, may cause like this material outlet of the bottom of Crystallization Separation chamber to stop up.Therefore, whipping appts is set and stirs, make to a certain extent the sodium chloride concentration of Crystallization Separation chamber be consistent, avoid bottom to separate out a large amount of sodium chloride crystals.
The shell side outlet of described interchanger is communicated with water of condensation storage tank by trap.When water is discharged in the shell side outlet of interchanger, can take away the water vapour that a part contains heat and discharge, therefore arrange and carry out gas-liquid separation by trap, prevent that the water vapour with heat from directly draining, further improve capacity usage ratio, reduce energy consumption.
The utility model, low with traditional sodium-chlor recovery crystallization apparatus phase specific energy consumption, by steam, reuse and reduce running cost, reduce environmental pollution, at the top of evaporator room, de-bubble plate is set, effectively avoided remaining organism in sodium chloride solution to enter vacuum system or compressor, guaranteed that vapour compressor and vacuum system normally work, extension device work-ing life.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model sodium-chlor reclaims crystallization apparatus.
Embodiment
Below in conjunction with specific embodiments and the drawings, the utility model is elaborated.
A kind of sodium-chlor with pre-mixing groove reclaims crystallization apparatus, as shown in Figure 1, comprise sodium chloride solution storage tank 9, the first recycle pump 16, the second recycle pump 6, pre-mixing groove 17, interchanger 3, evaporator room 2, Crystallization Separation chamber 4, vacuum system 10, vapour compressor 1 and water of condensation storage tank 7, pre-mixing groove 17 has two entrances and an outlet, the sidewall of Crystallization Separation chamber 4 is provided with overflow port, is communicated with an entrance of pre-mixing groove 17;
Wherein, the outlet of sodium chloride solution storage tank 9 connects the entrance of the first recycle pump 16, the outlet of the first recycle pump 16 connects an entrance of pre-mixing groove 17, another entrance of pre-mixing groove 17 is communicated with the overflow port of Crystallization Separation chamber 4 sidewalls, the outlet of pre-mixing groove 17 is communicated with the entrance of the second recycle pump 6, the outlet of the second recycle pump 6 connects the tube side entrance of interchanger 3, the tube side outlet of interchanger 3 connects the sidewall feeding mouth of evaporator room 2, the outlet at bottom of evaporator room 2 is communicated with Crystallization Separation chamber 4, and Crystallization Separation chamber 4 has bottom discharge mouth;
The top of evaporator room 2 is provided with two outlets, and an outlet is communicated to vacuum system 10, and another outlet is communicated with the entrance of vapour compressor 1, and the outlet of vapour compressor is communicated with the shell side entrance of interchanger 3;
The outer heating jacket 11 that is arranged with of sodium chloride solution storage tank 9, the shell side outlet of interchanger 3 is communicated with the entrance of heating jacket 11, and the outlet of heating jacket 11 is communicated with water of condensation storage tank 7.
For preventing that liquid water (water droplet) and bubble from entering in vacuum system and vapour compressor, the top of evaporator room 2 is provided with water eliminator 13 and de-bubble plate 14 from top to bottom successively, the some slice stainless (steel) wires of water eliminator 11 for closely arranging, de-bubble plate 14 is provided with some pores, and the inner edge of each pore is provided with the spine of downward bending.The feeding mouth of evaporator room 2 sidewalls is in the below of de-bubble plate 14.
In the present embodiment, the mesh of the stainless (steel) wire of water eliminator 11 is shaped as rhombus, rhombus length of side 0.5mm.The corrosion of stainless steel salt water resistance, and there is higher physical strength.
In the present embodiment, the pore of de-bubble plate 14 is circular hole, and diameter is 2.5cm.Each pore inner edge is evenly distributed with 6 spines.The spine downwards angle of bending is 45 degree.The length of spine is for being 1cm.
For what continue, to whole system, provide heat energy, the periphery of evaporator room 2, with heating jacket 12, is passed through in heating jacket in the present embodiment to adopt vapor form, can further improve the steam output in evaporator room, guarantees concentrated effect.
The bottom discharge mouth of Crystallization Separation chamber 4 also connects the feeding mouth of scraper centrifugal machine 8, and scraper centrifugal machine 8 can receive material automatic centrifugation, discharging, is convenient to improve level of automation and produces continuously.
The outlet at bottom of evaporator room 2 is tubulose, inserts and extend to the bottom of Crystallization Separation chamber 4.
Even for preventing the density unevenness of Crystallization Separation chamber 4, the bottom of Crystallization Separation chamber 4 is provided with whipping appts 15.
Claims (10)
1. a sodium-chlor with pre-mixing groove reclaims crystallization apparatus, it is characterized in that, comprise sodium chloride solution storage tank, the first recycle pump, the second recycle pump, pre-mixing groove, interchanger, evaporator room, Crystallization Separation chamber, vacuum system, vapour compressor and water of condensation storage tank, described pre-mixing groove has two entrances and an outlet, the sidewall of described Crystallization Separation chamber is provided with overflow port, is communicated with an entrance of pre-mixing groove;
Wherein, the outlet of described sodium chloride solution storage tank connects the entrance of described the first recycle pump, the first circulation pump outlet connects an entrance of described pre-mixing groove, another entrance of described pre-mixing groove is communicated with the overflow port of Crystallization Separation chamber sidewall, the outlet of described pre-mixing groove is communicated with the entrance of described the second recycle pump, described the second circulation pump outlet connects the tube side entrance of described interchanger, the tube side outlet of described interchanger connects the sidewall feeding mouth of described evaporator room, the outlet at bottom of described evaporator room is communicated with described Crystallization Separation chamber, described Crystallization Separation chamber has bottom discharge mouth,
The top of described evaporator room is provided with two outlets, and an outlet is communicated to described vacuum system, and another outlet is communicated with the entrance of described vapour compressor, and the outlet of described vapour compressor is communicated with the shell side entrance of described interchanger;
The outer heating jacket that is arranged with of described sodium chloride solution storage tank, the shell side outlet of described interchanger is communicated with the entrance of described heating jacket, and the outlet of described heating jacket is communicated with described water of condensation storage tank.
2. the sodium-chlor with pre-mixing groove as claimed in claim 1 reclaims crystallization apparatus, it is characterized in that, the top of described evaporator room is provided with water eliminator and de-bubble plate from top to bottom successively, the some slice stainless (steel) wires of described water eliminator for closely arranging; Described de-bubble plate is provided with some pores, and the inner edge of each pore is provided with the spine of downward bending.
3. the sodium-chlor with pre-mixing groove as claimed in claim 2 reclaims crystallization apparatus, it is characterized in that, described pore is circular hole, and diameter is 1～3cm.
4. the sodium-chlor with pre-mixing groove as claimed in claim 3 reclaims crystallization apparatus, it is characterized in that, the described spine downwards angle of bending is 45～50 degree.
5. the sodium-chlor with pre-mixing groove as claimed in claim 4 reclaims crystallization apparatus, it is characterized in that, the length of described spine is 0.5～1.5cm.
6. the sodium-chlor with pre-mixing groove as claimed in claim 5 reclaims crystallization apparatus, it is characterized in that, each pore inner edge is evenly distributed with 3～10 spines.
7. the sodium-chlor with pre-mixing groove as claimed in claim 6 reclaims crystallization apparatus, it is characterized in that, the outlet at bottom of described evaporator room is tubulose, inserts and extend to the bottom of Crystallization Separation chamber.
8. the sodium-chlor with pre-mixing groove as claimed in claim 7 reclaims crystallization apparatus, it is characterized in that, the bottom of described Crystallization Separation chamber is provided with whipping appts.
9. the sodium-chlor with pre-mixing groove as claimed in claim 8 reclaims crystallization apparatus, it is characterized in that, the shell side outlet of described interchanger is communicated with water of condensation storage tank by trap.
10. the sodium-chlor with pre-mixing groove as claimed in claim 9 reclaims crystallization apparatus, it is characterized in that, be also provided with scraper centrifugal machine, the bottom discharge mouth of described Crystallization Separation chamber is connected with the feeding mouth of scraper centrifugal machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320836008.2U CN203529951U (en) | 2013-12-17 | 2013-12-17 | Sodium chloride recycling and crystallizing device with pre-mixing tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320836008.2U CN203529951U (en) | 2013-12-17 | 2013-12-17 | Sodium chloride recycling and crystallizing device with pre-mixing tank |
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| Publication Number | Publication Date |
|---|---|
| CN203529951U true CN203529951U (en) | 2014-04-09 |
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| CN201320836008.2U Expired - Fee Related CN203529951U (en) | 2013-12-17 | 2013-12-17 | Sodium chloride recycling and crystallizing device with pre-mixing tank |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104740885A (en) * | 2015-03-12 | 2015-07-01 | 吉首大学 | Device for oscillating recovery after concentrating and crystallizing saline water |
| CN110201414A (en) * | 2019-05-14 | 2019-09-06 | 惠纯科技(浙江)有限公司 | A kind of energy-efficient sodium chloride concentration and crystallization device |
-
2013
- 2013-12-17 CN CN201320836008.2U patent/CN203529951U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104740885A (en) * | 2015-03-12 | 2015-07-01 | 吉首大学 | Device for oscillating recovery after concentrating and crystallizing saline water |
| CN104740885B (en) * | 2015-03-12 | 2016-03-30 | 吉首大学 | A kind of device that brine concentration crystallization after vibration is reclaimed |
| CN110201414A (en) * | 2019-05-14 | 2019-09-06 | 惠纯科技(浙江)有限公司 | A kind of energy-efficient sodium chloride concentration and crystallization device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20171217 |