CN210795789U - Continuous quality-separating crystallization and purification device for sodium chloride and sodium sulfate in industrial mixed salt wastewater - Google Patents
Continuous quality-separating crystallization and purification device for sodium chloride and sodium sulfate in industrial mixed salt wastewater Download PDFInfo
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- CN210795789U CN210795789U CN201921749679.9U CN201921749679U CN210795789U CN 210795789 U CN210795789 U CN 210795789U CN 201921749679 U CN201921749679 U CN 201921749679U CN 210795789 U CN210795789 U CN 210795789U
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Abstract
The utility model provides a continuous branch matter crystallization purification device of sodium chloride and sodium sulfate in industry mixed salt waste water, it relates to salt separation technical field in the industry waste water, concretely relates to continuous branch matter crystallization purification device of sodium chloride and sodium sulfate in industry mixed salt waste water. The device comprises a feeding pump, a first-stage heating chamber, a first-stage circulating pump, a first-stage separating chamber, a sodium chloride discharging pump, a first centrifuge, a cooler, a sodium chloride mother liquor tank, a hot water tank, a second-stage feeding pump, a second-stage heating chamber, a second-stage circulating pump, a third-stage heating chamber, a sodium sulfate discharging pump, a second centrifuge, a sodium sulfate mother liquor tank, a freezing feeding pump, a circulating cooler, a third-stage circulating pump, a third-stage separating chamber and a freezing discharging pump. After the technical scheme is adopted, the utility model discloses beneficial effect does: the shell and tube forced circulation heat exchanger is adopted, so that equipment is prevented from being blocked by crystallization, and the failure rate of the equipment is low; the process adopts an evaporation cooling crystallizer for crystallization, and achieves the crystallization effect on the premise of ensuring that two salts are not scabbed.
Description
Technical Field
The utility model relates to a salt separation technical field in the industrial waste water, concretely relates to continuous branch matter crystallization purification device of sodium chloride and sodium sulfate in industry mixed salt waste water.
Background
The existing continuous quality-divided crystallization purification technology for sodium chloride and sodium sulfate in industrial mixed salt wastewater adopts an evaporative crystallization technology, feed liquid is subjected to primary heating concentration, is subjected to secondary vacuum concentration, is subjected to tertiary vacuum concentration, and mother liquid gradually returns to a previous system, and is gradually concentrated.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a continuous quality-separating crystallization and purification device of sodium chloride and sodium sulfate in industrial mixed salt wastewater, aiming at the defects and shortcomings of the prior art, which adopts a shell and tube forced circulation heat exchanger to prevent crystallization from blocking equipment and reduce the failure rate of the equipment; the process adopts an evaporation cooling crystallizer for crystallization, and achieves the crystallization effect on the premise of ensuring that two salts are not scabbed.
In order to achieve the above purpose, the utility model adopts the following technical scheme: it comprises a feeding pump 1, a first-stage heating chamber 2, a first-stage circulating pump 3, a first-stage separating chamber 4, a sodium chloride discharging pump 5, a first centrifuge 6, a cooler 7, a sodium chloride mother liquor tank 8, a hot water tank 9, a second-stage feeding pump 10, a second-stage heating chamber 11, a second-stage circulating pump 12, a second-stage separating chamber 13, a sodium sulfate discharging pump 14, a second centrifuge 15, a sodium sulfate mother liquor tank 16, a freezing feeding pump 17, a circulating cooler 18, a third-stage circulating pump 19, a third-stage separating chamber 20 and a freezing discharging pump 21, wherein the feeding pump 1 is connected with the first-stage heating chamber 2, the first-stage heating chamber 2 is connected with the first-stage separating chamber 4, the first-stage separating chamber 4 is connected with the first-stage circulating pump 3, the first-stage circulating pump 3 is connected with the first-stage heating chamber 2, the first-stage separating chamber 4 is connected with the sodium chloride discharging, first centrifuge 6 is connected with sodium chloride mother liquor tank 8, sodium chloride mother liquor tank 8 is connected with second grade material loading pump 10, second grade material loading pump 10 is connected with second grade heating chamber 11, second grade heating chamber 11 is connected with second grade separator 13, second grade separator 13 is connected with cooler 7, cooler 7 is connected with hot water pool 9, second grade separator 13 is connected with sodium sulfate discharge pump 14, second grade separator 13 is connected with second grade circulating pump 12, second grade circulating pump 12 is connected with second grade heating chamber 11, sodium sulfate discharge pump 14 is connected with second centrifuge 15, second centrifuge 15 is connected with sodium sulfate mother liquor tank 16, sodium sulfate mother liquor tank 16 is connected with freezing material loading pump 17, freezing material loading pump 17 is connected with circulation cooler 18, circulation cooler 18 is connected with third grade separator 20, third grade separator 20 is connected with freezing discharge pump 21, freezing discharge pump 21 is connected with second centrifuge 15, the third-stage separation chamber 20 is connected to a third-stage circulation pump 19, and the third-stage circulation pump 19 is connected to the circulation cooler 18.
The first-stage heating chamber 2 is connected with the second-stage heating chamber 11 through a hot water pool 9.
The primary separation chamber 4 is connected with a hot water pool 9 through a cooler 7.
The secondary separation chamber 13 is connected with the hot water pool 9 through the cooler 7.
The utility model discloses a theory of operation: the process adopts the high-temperature evaporative concentration crystallization and freezing crystallization processes, raw water salt mainly comprises sodium chloride and sodium sulfate, a forced circulation evaporation form, high-efficiency refrigerant cooling equipment and a high-efficiency separation crystallization method are adopted in the feed liquid evaporative concentration process, the forced circulation evaporation, cooling and separation device is a high-efficiency and anti-scabbing evaporation device, the system uses an axial flow pump to convey liquid, the liquid is forced to flow through each device at a high speed, the flowing driving force is separated from the functions of heat transfer, vaporization, condensation and vapor-liquid separation, the heat exchange efficiency of the device is high, the condensation effect is obvious, the crystallization separation is thorough, and the applicability of the operation under different crystallization point conditions is very outstanding.
After the technical scheme is adopted, the utility model discloses beneficial effect does: it has the following advantages:
1. the shell and tube forced circulation heat exchanger is adopted, so that the equipment is prevented from being blocked by crystallization, and the failure rate of the equipment is low;
2. in the process, an evaporative cooling crystallizer is adopted for crystallization, so that the crystallization effect is achieved on the premise of ensuring that the two salts are not scabbed;
3. the evaporation of the material has the common property of inorganic salt evaporation and the particularity of the inorganic salt evaporation, and the material is considered in many aspects in the aspect of process design, and the material is specifically represented as follows:
① the design of the crystallization pipeline considers the adoption of a straight pipeline as much as possible and reduces elbows;
② the crystallization pipeline is designed to fully consider the flushing water and the purging, so as to prevent the pipeline from being blocked;
③ the crystallization pipeline is designed by adopting a bend with large curvature radius;
④, reasonably arranging equipment, and shortening the material pipelines with crystals as much as possible;
⑤ designing the pipeline flow rate of the solid-containing fluid to be a suitable flow rate;
⑥ the pump is selected to be suitable for the crystal material;
⑦ the separation chamber adopts a section for preventing gas entrainment and crystal sedimentation with different particle sizes;
⑧ separation chamber design takes into account manufacturing process and wall build up prevention flush water line.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of the present invention.
Description of reference numerals: the device comprises a feeding pump 1, a first-stage heating chamber 2, a first-stage circulating pump 3, a first-stage separating chamber 4, a sodium chloride discharging pump 5, a first centrifuge 6, a cooler 7, a sodium chloride mother liquor tank 8, a hot water tank 9, a second-stage feeding pump 10, a second-stage heating chamber 11, a second-stage circulating pump 12, a second-stage separating chamber 13, a sodium sulfate discharging pump 14, a second centrifuge 15, a sodium sulfate mother liquor tank 16, a freezing feeding pump 17, a circulating cooler 18, a third-stage circulating pump 19, a third-stage separating chamber 20 and a freezing discharging pump 21.
Detailed Description
Referring to fig. 1, the technical solution adopted in the present embodiment is that it includes a feeding pump 1, a first-stage heating chamber 2, a first-stage circulating pump 3, a first-stage separating chamber 4, a sodium chloride discharging pump 5, a first centrifuge 6, a cooler 7, a sodium chloride mother liquor tank 8, a hot water tank 9, a second-stage feeding pump 10, a second-stage heating chamber 11, a second-stage circulating pump 12, a second-stage separating chamber 13, a sodium sulfate discharging pump 14, a second centrifuge 15, a sodium sulfate mother liquor tank 16, a freezing feeding pump 17, a circulating cooler 18, a third-stage circulating pump 19, a third-stage separating chamber 20, and a freezing discharging pump 21, wherein the feeding pump 1 is connected with the first-stage heating chamber 2, the first-stage separating chamber 2 is connected with the first-stage separating chamber 4, the first-stage circulating pump 3 is connected with the first-stage heating chamber 2, the first-stage separating chamber 4, the first-stage separation chamber 4 is connected with a cooler 7, a sodium chloride discharge pump 5 is connected with a first centrifuge 6, the first centrifuge 6 is connected with a sodium chloride mother liquor tank 8, the sodium chloride mother liquor tank 8 is connected with a second-stage feeding pump 10, the second-stage feeding pump 10 is connected with a second-stage heating chamber 11, the second-stage heating chamber 11 is connected with a second-stage separation chamber 13, the second-stage separation chamber 13 is connected with the cooler 7, the cooler 7 is connected with a hot water tank 9, the second-stage separation chamber 13 is connected with a sodium sulfate discharge pump 14, the second-stage separation chamber 13 is connected with a second-stage circulating pump 12, the second-stage circulating pump 12 is connected with the second-stage heating chamber 11, the sodium sulfate discharge pump 14 is connected with a second centrifuge 15, the second centrifuge 15 is connected with a sodium sulfate mother liquor tank 16, the sodium sulfate mother liquor tank 16 is connected with a freezing feeding pump 17, the freezing feeding pump, tertiary separating chamber 20 is connected with freezing discharge pump 21, and freezing discharge pump 21 is connected with second centrifuge 15, and tertiary separating chamber 20 is connected with tertiary circulating pump 19, and tertiary circulating pump 19 is connected with cooling circulation 18, and the material flow direction: raw material liquid sequentially enters a first-stage heating chamber to be heated 2 after passing through a sodium chloride feeding pump 1, and then enters a first-stage separation chamber 4 after passing through a first-stage circulating pump 3, after the heated material is evaporated and concentrated in the first-stage separation chamber 4, the material containing crystals enters a sodium chloride discharging pump 5, and then enters a first centrifuge 6, and the sodium chloride is centrifuged, the liquid of the first centrifuge 6 reaches a sodium chloride mother liquor tank 8, and then enters a second-stage feeding pump 10, and then sequentially enters a second-stage heating chamber to be heated 11, and then passes through a second-stage circulating pump 12 to a second-stage separation chamber 13, after the heated material is evaporated and concentrated in the second-stage separation chamber 13, the material containing crystals enters a sodium sulfate discharging pump 14, and then enters a second centrifuge 15. The liquid of the centrifugal machine reaches a sodium sulfate mother liquor tank 16, then enters a freezing feeding pump 17, enters a circulating cooler 18, passes through a three-stage circulating pump 19 and then reaches a three-stage separation chamber 20, the cooled material is crystallized in the separation chamber 20, and then enters a freezing discharging pump 21 containing crystals and then enters a second centrifugal machine 15, sodium sulfate is centrifuged out, the centrifugal liquid reaches the sodium sulfate mother liquor tank 16, the vapor of the first-stage separation chamber 4 and the vapor of the second-stage separation chamber 13 enter a cooler 7, the condensed liquid enters a hot water tank 9, and the hot water flows: the heating medium adopts 120 ℃ steam, and after entering the preheating first-stage heating chamber and the preheating second-stage heating chamber respectively for heating, the condensate returns to the hot water tank 9.
The utility model discloses a theory of operation: the process adopts the high-temperature evaporative concentration crystallization and freezing crystallization processes, raw water salt mainly comprises sodium chloride and sodium sulfate, a forced circulation evaporation form, high-efficiency refrigerant cooling equipment and a high-efficiency separation crystallization method are adopted in the feed liquid evaporative concentration process, the forced circulation evaporation, cooling and separation device is a high-efficiency and anti-scabbing evaporation device, the system uses an axial flow pump to convey liquid, the liquid is forced to flow through each device at a high speed, the flowing driving force is separated from the functions of heat transfer, vaporization, condensation and vapor-liquid separation, the heat exchange efficiency of the device is high, the condensation effect is obvious, the crystallization separation is thorough, and the applicability of the operation under different crystallization point conditions is very outstanding.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (4)
1. The utility model provides a continuous branch matter crystallization purification device of sodium chloride and sodium sulfate in industry mixed salt waste water which characterized in that: it comprises a feeding pump (1), a first-stage heating chamber (2), a first-stage circulating pump (3), a first-stage separating chamber (4), a sodium chloride discharge pump (5), a first centrifugal machine (6), a cooler (7), a sodium chloride mother liquor tank (8), a hot water tank (9), a second-stage feeding pump (10), a second-stage heating chamber (11), a second-stage circulating pump (12), a second-stage separating chamber (13), a sodium sulfate discharge pump (14), a second centrifugal machine (15), a sodium sulfate mother liquor tank (16), a freezing feeding pump (17), a circulating cooler (18), a third-stage circulating pump (19), a third-stage separating chamber (20) and a freezing discharge pump (21), wherein the feeding pump (1) is connected with the first-stage heating chamber (2), the first-stage heating chamber (2) is connected with the first-stage separating chamber (4), the first-stage separating chamber (4) is connected with the first-stage circulating pump (3), and the, the primary separation chamber (4) is connected with a sodium chloride discharge pump (5), the primary separation chamber (4) is connected with a cooler (7), the sodium chloride discharge pump (5) is connected with a first centrifugal machine (6), the first centrifugal machine (6) is connected with a sodium chloride mother liquor tank (8), the sodium chloride mother liquor tank (8) is connected with a secondary feeding pump (10), the secondary feeding pump (10) is connected with a secondary heating chamber (11), the secondary heating chamber (11) is connected with a secondary separation chamber (13), the secondary separation chamber (13) is connected with the cooler (7), the cooler (7) is connected with a hot water tank (9), the secondary separation chamber (13) is connected with a sodium sulfate discharge pump (14), the secondary separation chamber (13) is connected with a secondary circulating pump (12), the secondary circulating pump (12) is connected with the secondary heating chamber (11), the sodium sulfate discharge pump (14) is connected with a second centrifugal machine (15), second centrifuge (15) are connected with sodium sulfate mother liquor tank (16), sodium sulfate mother liquor tank (16) are connected with freezing material loading pump (17), freezing material loading pump (17) are connected with circulative cooling ware (18), circulative cooling ware (18) are connected with tertiary separation chamber (20), tertiary separation chamber (20) are connected with freezing ejection of compact pump (21), freezing ejection of compact pump (21) are connected with second centrifuge (15), tertiary separation chamber (20) are connected with tertiary circulating pump (19), tertiary circulating pump (19) are connected with circulative cooling ware (18).
2. The continuous quality-separating crystallization purification device for sodium chloride and sodium sulfate in industrial mixed-salt wastewater as claimed in claim 1, characterized in that: the primary heating chamber (2) is connected with the secondary heating chamber (11) through a hot water pool (9).
3. The continuous quality-separating crystallization purification device for sodium chloride and sodium sulfate in industrial mixed-salt wastewater as claimed in claim 1, characterized in that: the primary separation chamber (4) is connected with a hot water pool (9) through a cooler (7).
4. The continuous quality-separating crystallization purification device for sodium chloride and sodium sulfate in industrial mixed-salt wastewater as claimed in claim 1, characterized in that: the secondary separation chamber (13) is connected with a hot water pool (9) through a cooler (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921749679.9U CN210795789U (en) | 2019-10-18 | 2019-10-18 | Continuous quality-separating crystallization and purification device for sodium chloride and sodium sulfate in industrial mixed salt wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921749679.9U CN210795789U (en) | 2019-10-18 | 2019-10-18 | Continuous quality-separating crystallization and purification device for sodium chloride and sodium sulfate in industrial mixed salt wastewater |
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| Publication Number | Publication Date |
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| CN210795789U true CN210795789U (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921749679.9U Active CN210795789U (en) | 2019-10-18 | 2019-10-18 | Continuous quality-separating crystallization and purification device for sodium chloride and sodium sulfate in industrial mixed salt wastewater |
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| CN (1) | CN210795789U (en) |
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