CN210065199U - Evaporative crystallization device of high-purity anhydrous sodium sulphate - Google Patents
Evaporative crystallization device of high-purity anhydrous sodium sulphate Download PDFInfo
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- CN210065199U CN210065199U CN201920074718.3U CN201920074718U CN210065199U CN 210065199 U CN210065199 U CN 210065199U CN 201920074718 U CN201920074718 U CN 201920074718U CN 210065199 U CN210065199 U CN 210065199U
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Abstract
The utility model discloses an evaporative crystallization device for high-purity anhydrous sodium sulphate, which comprises a feeding device and a separating device, wherein the feeding device comprises a raw material tank, a precipitator and a feeding pipe, the separating device consists of a first-stage separating device, a second-stage separating device, a third-stage separating device and a fourth-stage separating device, the separating device comprises an evaporator, a crystallizer, a heating chamber and a circulating pipeline, the raw material tank is connected with the precipitator through the feeding pipe, the precipitator is connected with the heating chamber through the feeding pipe, the top and the bottom of the heating chamber are both connected with the circulating pipeline, the circulating pipeline at the top is connected with the evaporator, and the circulating pipeline at the bottom is connected with the crystallizer. High heat efficiency, high solution purity and stable quality.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to an evaporation crystallization device's technical field, especially a high-purity anhydrous sodium sulphate's evaporation crystallization device's technical field.
[ background of the invention ]
Anhydrous sodium sulphate, white, odorless, bitter crystals or powder, and has hygroscopicity. The appearance is colorless, transparent, big crystallization or granule nature small crystallization, and evaporation crystallization device wide application is in the waste water treatment of industries such as chemical industry, non ferrous metal trade, pesticide industry, food industry, pharmacy industry, ammonia process desulfurization, mine smelting, steel factory, oil field, through the recovery to the crystal in the waste water with pure environmental protection improvement, discharge up to standard deepening to environmental protection improvement, comprehensive utilization, with crystallization recycle such as ammonium chloride, potassium chloride, sodium sulfate in the waste water.
Because of the characteristics of sodium sulfate materials, mainly the solubility of sodium sulfate is greatly influenced by the change of temperature, the concentration reaches a saturated state or approaches to the saturated state after the sodium sulfate is evaporated and discharged from an evaporator, the traditional technology is to enter a cooling crystallization device for cooling crystallization, namely, crystallization is carried out by cooling, because the concentration of a sodium sulfate saturated solution or a solution approaching to the saturated state entering the cooling crystallization device is low, although the sodium sulfate saturated solution or the solution approaching to the saturated state is cooled, the amount of precipitated crystals is small, the amount of sodium sulfate solid collected after centrifugal separation is small, after the sodium sulfate is cooled and crystallized, the temperature of the centrifuged mother liquor is greatly reduced, a large amount of low-temperature centrifuged mother liquor needs to return to an evaporation system again, heat energy is consumed again, and a.
[ Utility model ] content
The utility model aims at solving the problem among the prior art, provide an evaporative crystallization device of high-purity anhydrous sodium sulphate, simple structure, convenient to use has guaranteed the continuity of production and product quality's stability, can reduce intensity of labour, improves production efficiency, effectively reduces the energy consumption, and anti salting out, anti scab ability reinforce, heat transfer coefficient is high, and the thermal efficiency is high, and solution purity is high, and stable in quality has improved production efficiency.
In order to realize the above object, the utility model provides an evaporative crystallization device of high-purity anhydrous sodium sulphate, including feed arrangement and separator, feed arrangement include head tank, precipitator and inlet pipe, separator constitute by one-level separator, second grade separator, tertiary separator and level four separator, separator include evaporimeter, crystallizer, heating chamber and circulating line, the head tank be connected with the precipitator through the inlet pipe, the precipitator be connected with the heating chamber through the inlet pipe, the top and the bottom of heating chamber all be connected with circulating line, the top circulating line be connected with the evaporimeter, the bottom circulating line be connected with the crystallizer.
Preferably, the bottom of the evaporator is provided with a central pipe, the central pipe penetrates through the crystallizer, the top of the evaporator is provided with a steam outlet, one side of the evaporator is provided with a circulating liquid inlet, the steam outlet is connected with a steam pipeline, and the circulating liquid inlet is connected with a circulating pipeline.
Preferably, one side of crystallizer be equipped with the circulation liquid export, the circulation liquid exit linkage have a circulating line, a circulating pump is equipped with on the circulating line, bottom one side of crystallizer be equipped with anhydrous sodium sulphate crystal export, anhydrous sodium sulphate crystal export be connected with the discharging pipe, the discharging pipe be connected with the stiff ware, the stiff ware be connected with centrifuge, centrifuge be connected with mother liquor pond and material jar, the mother liquor pond pass through the pipe connection and be in the inlet pipe on, the discharging pipe on be equipped with discharge valve.
Preferably, a feed inlet is arranged at the upper part of one side of the heating chamber, a condensed water outlet is arranged at the lower part of one side of the heating chamber, the condensed water outlet is connected with a condensed water pipeline, the top and the bottom of the heating chamber are connected with a circulating pipeline, one side of the circulating pipeline is connected with a circulating liquid inlet of the evaporator, and the other side of the circulating pipeline is connected with a circulating liquid outlet of the crystallizer.
Preferably, the steam outlet is connected with a condenser through a steam pipeline, the condenser is connected with a water storage device, and the water storage device is connected with a condensed water outlet of the heating chamber through a steam pipeline.
Preferably, a heat exchange tube is arranged in the heating chamber, and the diameter of the heat exchange tube is 38 mm.
Preferably, a baffle is arranged in the crystallizer, and the baffle divides the crystallizer into a crystal growth area and a crystal settling area.
Preferably, the evaporator adopts a three-effect evaporator and a four-effect evaporator.
Preferably, the evaporator is a forced circulation evaporator with an axial flow pump.
The utility model has the advantages that: the utility model discloses simple structure, high durability and convenient use, through circulating line, the dilute solution of the anhydrous sodium sulphate of crystal is not formed returns evaporator circulation evaporation crystallization once more, the continuity of production and product quality's stability have been guaranteed, can reduce intensity of labour, improve production efficiency, effectively reduce the energy consumption, through adopting the forced circulation evaporimeter of taking axial-flow pump, forced circulation evaporimeter anti-salting out, anti scabbing ability reinforce, heat transfer coefficient is high, through adopting triple effect or four-effect evaporimeter, the thermal efficiency is high, steam consumption only is 1/3 of single effect evaporimeter, the consumption of cooling water also is its 1/3, adopt continuous evaporation, the mode operation of the continuous ejection of compact, solution purity is high, stable quality, and the production efficiency is improved.
The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a schematic structural diagram of an evaporative crystallization device for high-purity anhydrous sodium sulfate according to the present invention;
FIG. 2 is a schematic structural diagram of a separation device of the evaporative crystallization device for high-purity anhydrous sodium sulfate of the present invention.
In the figure: 1-a feeding device, 11-a raw material tank, 12-a precipitator, 13-a feeding pipe, 2-a separating device, 21-an evaporator, 210-a central pipe, 211-a steam outlet, 212-a circulating liquid inlet, 22-a crystallizer, 221-a circulating liquid outlet, 222-a glauber salt crystal outlet, 223-a discharging pipe, 224-a discharging valve and 225-a baffle plate, 226-crystal growth zone, 227-crystal settling zone, 23-heating chamber, 230-heat exchange tube, 231-feed inlet, 232-condensed water outlet, 213-steam pipeline, 24-circulation pipeline, 3-circulation pump, 4-thickener, 5-centrifuge, 6-mother liquor pool, 7-material tank, 8-condenser and 9-water storage device.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail through the accompanying drawings and embodiments. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Referring to fig. 1 and 2, the utility model relates to an evaporation crystallization device of high-purity anhydrous sodium sulphate, including material device 1 and separator 2, feed arrangement 1 includes head tank 11, precipitator 12 and inlet pipe 13, separator 2 is by one-level separator, second grade separator, tertiary separator and level four separator constitute, separator 2 includes evaporimeter 21, crystallizer 22, heating chamber 23 and circulating line 24, head tank 11 is connected with precipitator 12 through inlet pipe 13, precipitator 12 is connected with heating chamber 23 through inlet pipe 13, the top and the bottom of heating chamber 23 all are connected with circulating line 24, the circulating line 24 at top is connected with evaporimeter 21, the circulating line 24 of bottom is connected with crystallizer 22.
The bottom of the evaporator 21 is provided with a central pipe 210, the central pipe 210 is arranged in the crystallizer 22 in a penetrating manner, the top of the evaporator 21 is provided with a steam outlet 211, one side of the evaporator 21 is provided with a circulating liquid inlet 212, the steam outlet 211 is connected with a steam pipeline 213, and the circulating liquid inlet 212 is connected with a circulating pipeline 24.
Wherein, one side of crystallizer 22 is equipped with circulation liquid outlet 221, circulation liquid outlet 221 is connected with circulating line 24, be equipped with circulating pump 3 on the circulating line 24, bottom one side of crystallizer 22 is equipped with anhydrous sodium sulphate crystal export 222, anhydrous sodium sulphate crystal export 222 is connected with discharging pipe 223, discharging pipe 223 is connected with stiff ware 4, stiff ware 4 is connected with centrifuge 5, centrifuge 5 is connected with mother liquor pond 6 and material tank 7, mother liquor pond 6 passes through the pipe connection on inlet pipe 13, be equipped with discharge valve 224 on the discharging pipe 223.
Wherein, a feed inlet 231 is arranged at the upper part of one side of the heating chamber 23, a condensed water outlet 232 is arranged at the lower part of one side of the heating chamber 23, the condensed water outlet 232 is connected with a condensed water pipeline 233, the top and the bottom of the heating chamber 23 are connected with a circulating pipeline 24, one side of the circulating pipeline 24 is connected with a circulating liquid inlet 212 of the evaporator 21, and the other side of the circulating pipeline 24 is connected with a circulating liquid outlet 221 of the crystallizer 22.
Wherein, the steam outlet 211 is connected with a condenser 8 through a steam pipe 213, the condenser 8 is connected with a water storage device 9, and the water storage device 9 is connected with a condensed water outlet 232 of the heating chamber 23 through the steam pipe 213.
Wherein, a heat exchange tube 230 is arranged in the heating chamber 23, and the tube diameter of the heat exchange tube 230 is 38 mm.
Wherein, a baffle 225 is arranged inside the crystallizer 22, and the baffle 225 divides the crystallizer 22 into a crystal growth zone 226 and a crystal settling zone 227.
Wherein, the evaporator 21 adopts a three-effect evaporator and a four-effect evaporator.
The evaporator 21 is a forced circulation evaporator with an axial flow pump.
The utility model discloses the working process: dissolving the raw materials in appropriate amount of condensed water to obtain nearly saturated solution, adding precipitant, and adding Ca, Mg, Fe, and SO4 2-When the solution is converted into insoluble precipitate, pumping the dissolved solution into a precipitator 12, precisely filtering the supernatant, feeding the supernatant into a heating chamber 23, feeding the dilute solution into an evaporator 21 through a circulating pipeline 24 under the action of a circulating pump 3, and controlling the temperature of the solution in the chamberThe temperature rises above the boiling point of the solution, the solution is evaporated and concentrated by a triple-effect evaporator or a quadruple-effect evaporator, the solution flows downwards from the inner wall of the central pipe 210 in a film shape and enters the crystallizer 22, the flow rate becomes lower due to the change of the pipe diameter, crystal grains grow continuously in the flowing process, large-particle crystals settle downwards under the action of gravity, a discharge valve 224 is opened, the large-particle crystals are discharged from a glauber salt crystal outlet 222 and enter the thickener 4 through a discharge pipe 223 to obtain a required product, a dilute solution of glauber salt without crystal is slowly flowed upwards under the action of the circulating pump 3, and finally enters the heating chamber 23 through a circulating pipe 24 from a circulating liquid outlet 221, the circulating glauber salt solution is heated by the heating chamber 23 and enters the evaporator 21 through a circulating pipe 24 to be evaporated and crystallized, steam generated by the evaporator 21 enters a steam pipe 213 from a steam outlet 211, condensed water is condensed by the condenser 8 and enters the water storage tank 9, and condensed water generated by the heating chamber 23 also enters the water storage tank 9 from a condensed water pipeline 233.
The utility model relates to an evaporative crystallization device of high-purity anhydrous sodium sulphate, moreover, the steam generator is simple in structure, high durability and convenient use, through circulating line 24, the dilute solution of anhydrous sodium sulphate that does not form the crystal returns to evaporimeter 21 circulation evaporation crystallization once more, the continuity of production and product quality's stability have been guaranteed, can reduce intensity of labour, improve production efficiency, effectively reduce the energy consumption, through the forced circulation evaporimeter that adopts the axial-flow pump, the forced circulation evaporimeter is anti-salting out, anti-scarring ability reinforce, the heat transfer coefficient is high, through adopting triple effect or four-effect evaporimeter, the thermal efficiency is high, steam consumption is 1/3 only for single-effect evaporimeter, the consumption of cooling water also is its 1/3, through adopting continuous evaporation, the mode operation of continuous ejection of compact, solution purity is high, stable in quality, and production efficiency is improved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.
Claims (9)
1. The utility model provides an evaporation crystallization device of high-purity anhydrous sodium sulphate which characterized in that: comprises a feeding device (1) and a separating device (2), wherein the feeding device (1) comprises a raw material tank (11), a precipitator (12) and a feeding pipe (13), the separation device (2) consists of a first-stage separation device, a second-stage separation device, a third-stage separation device and a fourth-stage separation device, the separation device (2) comprises an evaporator (21), a crystallizer (22), a heating chamber (23) and a circulating pipeline (24), the raw material tank (11) is connected with a precipitator (12) through a feeding pipe (13), the precipitator (12) is connected with a heating chamber (23) through a feeding pipe (13), the top and the bottom of the heating chamber (23) are both connected with a circulating pipeline (24), the circulating pipeline (24) at the top is connected with an evaporator (21), and the circulating pipeline (24) at the bottom is connected with a crystallizer (22).
2. The evaporative crystallization apparatus for high purity anhydrous sodium sulfate as claimed in claim 1, wherein: the bottom of evaporimeter (21) be equipped with central tube (210), central tube (210) wear to establish the inside of crystallizer (22), the top of evaporimeter (21) be equipped with steam outlet (211), one side of evaporimeter (21) be equipped with circulation liquid import (212), steam outlet (211) be connected with steam conduit (213), circulation liquid import (212) be connected with circulating line (24).
3. The evaporative crystallization apparatus for high purity anhydrous sodium sulfate as claimed in claim 1, wherein: one side of crystallizer (22) be equipped with circulation liquid export (221), circulation liquid export (221) be connected with circulating line (24), circulating line (24) on be equipped with circulating pump (3), bottom one side of crystallizer (22) be equipped with anhydrous sodium sulphate crystal export (222), anhydrous sodium sulphate crystal export (222) be connected with discharging pipe (223), discharging pipe (223) be connected with stiff ware (4), stiff ware (4) be connected with centrifuge (5), centrifuge (5) be connected with mother liquor pond (6) and material jar (7), mother liquor pond (6) pass through the pipe connection and be in inlet pipe (13), discharging pipe (223) on be equipped with discharge valve (224).
4. The evaporative crystallization apparatus for high purity anhydrous sodium sulfate as claimed in claim 1, wherein: the cooling device is characterized in that a feeding hole (231) is formed in the upper portion of one side of the heating chamber (23), a condensed water outlet (232) is formed in the lower portion of one side of the heating chamber (23), the condensed water outlet (232) is connected with a condensed water pipeline (), the top and the bottom of the heating chamber (23) are connected with a circulating pipeline (24), one side of the circulating pipeline (24) is connected with a circulating liquid inlet (212) of the evaporator (21), and the other side of the circulating pipeline (24) is connected with a circulating liquid outlet (221) of the crystallizer (22).
5. The evaporative crystallization apparatus for high purity anhydrous sodium sulfate as claimed in claim 2, wherein: the steam outlet (211) is connected with a condenser (8) through a steam pipeline (233), the condenser (8) is connected with a water storage device (9), and the water storage device (9) is connected with a condensed water outlet (232) of the heating chamber (23) through the steam pipeline (233).
6. The evaporative crystallization apparatus for high purity anhydrous sodium sulfate as claimed in claim 1, wherein: a heat exchange tube (230) is arranged in the heating chamber (23), and the diameter of the heat exchange tube (230) is 38 mm.
7. The evaporative crystallization apparatus for high purity anhydrous sodium sulfate as claimed in claim 1, wherein: a baffle (225) is arranged in the crystallizer (22), and the crystallizer (22) is divided into a crystal growth zone (226) and a crystal settling zone (227) by the baffle (225).
8. The evaporative crystallization apparatus for high purity anhydrous sodium sulfate as claimed in claim 1, wherein: the evaporator (21) adopts a three-effect evaporator and a four-effect evaporator.
9. The evaporative crystallization apparatus for high purity anhydrous sodium sulfate as claimed in any one of claims 1 to 8, wherein: the evaporator (21) adopts a forced circulation evaporator with an axial flow pump.
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| CN201920074718.3U CN210065199U (en) | 2019-01-17 | 2019-01-17 | Evaporative crystallization device of high-purity anhydrous sodium sulphate |
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| CN201920074718.3U CN210065199U (en) | 2019-01-17 | 2019-01-17 | Evaporative crystallization device of high-purity anhydrous sodium sulphate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109607576A (en) * | 2019-01-17 | 2019-04-12 | 湖州惠鹏达节能环保科技有限公司 | A kind of evaporated crystallization device of high-purity anhydrous sodium sulphate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109607576A (en) * | 2019-01-17 | 2019-04-12 | 湖州惠鹏达节能环保科技有限公司 | A kind of evaporated crystallization device of high-purity anhydrous sodium sulphate |
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