CN211215452U - Low-temperature concentration equipment with material drying and crystallizing functions - Google Patents
Low-temperature concentration equipment with material drying and crystallizing functions Download PDFInfo
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- CN211215452U CN211215452U CN201921605645.2U CN201921605645U CN211215452U CN 211215452 U CN211215452 U CN 211215452U CN 201921605645 U CN201921605645 U CN 201921605645U CN 211215452 U CN211215452 U CN 211215452U
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Abstract
The utility model provides a low-temperature concentration equipment with material drying and crystallization functions, which comprises a solution tank, a preheating evaporator, a middle tank, a spray water pump and a compressor, wherein the preheating evaporator is provided with a heat source inlet, a circulating liquid inlet, a heat source outlet and a circulating liquid outlet, the bottom of the middle tank is provided with a raw material inlet pipe, the top of the middle tank is provided with a raw material outlet pipe, the solution tank comprises a crystallization drying section and an evaporation concentration section, the crystallization drying section comprises a scraper evaporator, the evaporation concentration section is internally provided with a spray pipe, the bottom end of the evaporation concentration section is provided with a drying pipeline leading to the feed inlet of the scraper evaporator, and is also provided with a concentration pipeline which is communicated with the circulating liquid inlet, the circulating liquid outlet, the raw material outlet pipe, the spray water pump and the spray pipe in sequence, water vapor evaporated from the scraper evaporator is conveyed by the compressor to pass through the evaporation concentration section, the, and the concentration ratio of low-temperature evaporation and concentration equipment can be improved, the evaporation efficiency is higher, and the volume is larger.
Description
Technical Field
The utility model relates to a low temperature concentration equipment, especially a low temperature concentration equipment who possesses material mummification and crystallization function.
Background
The physical principle of the low-temperature concentration equipment is that the boiling point of water in the evaporation material is reduced in a negative pressure state, and the water is evaporated out, so that the purpose of concentrating the material is achieved.
Under the negative pressure state, moisture in the material volatilizes away with the form of vapor, and the material viscosity that loses moisture progressively gets bigger, and mobility worsens gradually, and after concentrating to a certain degree, material adhesion (non-crystal) or crystallization (crystal) on the heat exchanger surface lead to the unable normal discharge of concentrate, influence the efficiency of heat exchanger heat exchange simultaneously, finally lead to whole evaporation system's trouble. At present, in the similar low-temperature evaporation concentration equipment, in order to ensure the smooth discharge of the concentrate, the concentration ratio is generally controlled, and the concentrate is ensured to have good fluidity by improving the concentration ratio.
In the low-temperature evaporation industry at present, a conventional low-temperature evaporator is mainly adopted for material concentration, and a scraper evaporator is mainly adopted for crystallization and drying. In order to ensure that the concentrate has good fluidity, the conventional evaporator prevents the concentrate from being adhered to a heat exchanger and being incapable of being discharged, so that the evaporator cannot work, and therefore the conventional evaporator cannot concentrate the material to a high concentration ratio; the scraper evaporator is used for crystallization drying, the water content of the concentrate can be reduced to the greatest extent, but the operation cost is higher due to the small heat exchange area and the influence of the scraper space, and the heat exchange area of the scraper evaporator is hardly influenced by the floor space of equipment, the evaporation capacity of the equipment is hardly increased, and the market demand cannot be met; meanwhile, the scraper evaporator is relatively complex in structure, multiple in supporting facilities and high in manufacturing cost.
Therefore, a low-temperature concentration device with material drying and crystallizing functions, which can reduce the operation cost of the low-temperature evaporation device by preheating materials, improve the concentration ratio of the low-temperature evaporation concentration device, has higher evaporation efficiency and larger volume, is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a low temperature concentration equipment who possesses material mummification and crystallization function, the accessible preheats the operation cost that reduces low temperature evaporation equipment to the material, and can improve low temperature evaporation concentration equipment's concentrated ratio, and evaporation efficiency is higher, and the volume is bigger.
The utility model provides a following technical scheme:
a low-temperature concentration device with material drying and crystallizing functions comprises a solution tank, a preheating evaporator, an intermediate tank, a spray water pump and a compressor, wherein the preheating evaporator is provided with a heat source inlet, a circulating liquid inlet, a heat source outlet and a circulating liquid outlet, the bottom of the intermediate tank is provided with a raw material inlet pipe, and its top is equipped with the raw materials exit tube, the solution jar is including the crystallization mummification section that is located the upper portion and the evaporation concentration section that is located the lower part, crystallization mummification section includes the scraper evaporimeter, be equipped with the shower in the evaporation concentration section, evaporation concentration section bottom is equipped with a mummification pipeline that leads to the scraper evaporimeter feed inlet, still be equipped with the concentrated pipeline of a intercommunication circulation liquid import in order, the circulation liquid export, the raw materials exit tube, spray water pump and shower, the vapor of evaporating out passes through the feeding preheating device of pipeline transport process evaporation concentration section through the compressor in the scraper evaporimeter.
Preferably, a filter is further arranged on the drying pipeline.
Preferably, a flow meter is further arranged between the spray water pump and the spray pipe.
Preferably, the solution tank is also provided with a vacuum-pumping pipeline capable of maintaining the vacuum state of the crystallization drying section and the evaporation concentration section, and the vacuum-pumping pipeline is connected with a water ring vacuum pump.
Preferably, a residual solution discharge pipe communicated with the raw material pool is further arranged between the spray water pump and the spray pipe.
Preferably, the raw material inlet pipe, the circulating liquid inlet and the circulating liquid outlet are electrically controlled by electromagnetic valves
The utility model has the advantages that:
1) compared with the conventional evaporator, the concentration ratio of the low-temperature evaporation and concentration equipment is improved, and the material can be concentrated to lower water content at one time;
2) compared with a scraper evaporator, the evaporator has high evaporation efficiency, large volume and low operation cost;
3) the investment cost is lower than the sum of the conventional evaporator and the scraper evaporator, and the market is more easily accepted;
4) compared with a conventional evaporator and a scraper evaporator, the control program is simplified, the sharing of auxiliary equipment is realized, and the maintenance is easy;
5) steam and waste heat generated after the drying crystallization part is evaporated are used for preheating the feeding of the evaporation part, so that waste heat recovery is realized to the maximum extent, and the operation cost is reduced;
6) the crystallization drying is used as an independent part and can be flexibly configured according to the requirement.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a flow chart of the structure of the present invention;
notation in the figure: the system comprises a solution tank 1, a preheating evaporator 2, a middle tank 3, a spray water pump 4, a compressor 5, a crystallization drying section 6, an evaporation concentration section 7, a drying pipeline 8, a concentration pipeline 9, a steam pipeline 10, a filter 11, a flowmeter 12, a vacuumizing pipeline 13, a water ring vacuum pump 14, a raw material inlet pipe 15, a raw material tank 16 and a residual solution discharge pipe 17.
Detailed Description
As shown in fig. 1, a flow chart of a structure of a cryoconcentration apparatus with material drying and crystallization functions, in this embodiment, includes a solution tank 1, a preheating evaporator 2, an intermediate tank 3, a spray pump 4 and a compressor 5, the preheating evaporator 2 is provided with a heat source inlet, a circulating liquid inlet, a heat source outlet and a circulating liquid outlet, the bottom of the intermediate tank 3 is provided with a raw material inlet pipe 15 communicated with a raw material tank 16, and the top thereof is provided with a raw material outlet pipe, the solution tank 1 includes a crystallization drying section 6 located at the upper portion and an evaporation concentration section 7 located at the lower portion, the crystallization drying section 6 includes a scraper evaporator, the evaporation concentration section 7 is provided with a spray pipe therein, the bottom of the evaporation concentration section 7 is provided with a sequential drying pipeline 8 leading to a feed inlet of the scraper evaporator, and is further provided with a concentration pipeline 9 communicating the circulating liquid inlet, the circulating liquid outlet, the raw material outlet pipe, the water vapor evaporated in the scraper evaporator is conveyed by the compressor 5 through the steam line 10 through the feed preheating device of the evaporative concentration section 7.
The drying pipeline 8 is also provided with a filter 11.
A flow meter 12 is also arranged between the spray water pump 4 and the spray pipe.
The solution tank 1 is also provided with a vacuum pumping pipeline 13 capable of keeping the vacuum state of the crystallization drying section 6 and the evaporation concentration section 7, the vacuum pumping pipeline 13 is connected with a water ring vacuum pump 14, the compressor 5 continuously works when the system normally operates, the spray pump continuously and circularly sprays the materials to the heat exchanger, and the water ring vacuum pump 14 is intermittently started to maintain the evaporation system under the vacuum environment.
A residual solution discharge pipe 17 communicated with the raw material pool is also arranged between the spray water pump and the spray pipe.
The raw material inlet pipe, the circulating liquid inlet and the circulating liquid outlet are electrically controlled by electromagnetic valves.
The utility model discloses a theory of operation is: the utility model discloses combine the advantage of two kinds of equipment of scraper evaporator and conventional evaporator, when material concentration is lower, earlier concentrate with the form of conventional evaporation concentration, this stage advantage is that the running cost is low, equipment throughput is great, can concentrate the gross material to about 10%, then discharge crystallization mummification section 6 with the material of having concentrated and carry out the crystallization mummification, crystallization mummification section 6 is according to scraper evaporator principle, condensation segment and comdenstion water collection section are simplified, remain crystallization mummification evaporation part, take the form of separate heating, make the material of having concentrated form the film under the effect of scraper, the vapor that evaporates simultaneously away passes through 7 feeding preheating device of evaporation concentration section through the pipeline transport, a feeding for preheating 7 of evaporation concentration section, thereby reduce compressor 5's heating power, the operation cost has been reduced. And scraping the crystallized and dried dry material out of the crystallization and drying section 6 by a scraper, and finally discharging the dried material with a set water content.
The crystallization drying section is simple to control, a control program can be independently set, and the concentrate discharged intermittently from the evaporation concentration section is directly discharged into the crystallization drying section without intermediate transfer, so that the heat loss is reduced as much as possible.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a cryoconcentration equipment that possesses material mummification and crystallization function, a serial communication port, including solution tank, preheating evaporator, pans, spray water pump and compressor, be equipped with heat source import, circulation liquid import, heat source export and circulation liquid export on the preheating evaporator, the bottom of pans is equipped with and advances the pipe with the raw materials of raw materials pond intercommunication, and its top is equipped with the raw materials exit tube, the solution tank is including the crystallization mummification section that is located upper portion and the evaporation concentration section that is located the lower part, crystallization mummification section includes the scraper evaporimeter, be equipped with the shower in the evaporation concentration section, evaporation concentration section bottom is equipped with one and leads to the mummification pipeline of scraper evaporimeter feed inlet still is equipped with one and communicates circulation liquid import, circulation liquid export, raw materials exit tube in order, sprays the concentrated pipeline of water pump and shower, the vapor warp of evaporation in the scraper evaporimeter the compressor passes through the steam pipeline and carries the process the feeding of evaporation concentration section A thermal device.
2. The cryoconcentration apparatus with material drying and crystallization functions as claimed in claim 1, wherein a filter is further disposed on the drying pipeline.
3. The cryoconcentration apparatus with material drying and crystallization functions as claimed in claim 1, wherein a flow meter is further disposed between the spray pump and the spray pipe.
4. The cryoconcentration apparatus with drying and crystallization functions as claimed in claim 1, wherein the solution tank further comprises a vacuum pumping pipeline for maintaining vacuum state of the drying section and the evaporation and concentration section, and the vacuum pumping pipeline is connected to a water ring vacuum pump.
5. The cryoconcentration apparatus with material drying and crystallization functions as claimed in claim 1, wherein a residual solution discharge pipe is further disposed between the spray pump and the spray pipe and is communicated with the raw material tank.
6. The low-temperature concentration equipment with the functions of drying and crystallizing materials as claimed in claim 1, wherein the raw material inlet pipe, the circulating liquid inlet and the circulating liquid outlet are electrically controlled by electromagnetic valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921605645.2U CN211215452U (en) | 2019-09-25 | 2019-09-25 | Low-temperature concentration equipment with material drying and crystallizing functions |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921605645.2U CN211215452U (en) | 2019-09-25 | 2019-09-25 | Low-temperature concentration equipment with material drying and crystallizing functions |
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| CN211215452U true CN211215452U (en) | 2020-08-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116768306A (en) * | 2023-07-25 | 2023-09-19 | 无锡朗盼环境科技有限公司 | Waste water evaporating crystallizer device |
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2019
- 2019-09-25 CN CN201921605645.2U patent/CN211215452U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116768306A (en) * | 2023-07-25 | 2023-09-19 | 无锡朗盼环境科技有限公司 | Waste water evaporating crystallizer device |
| CN116768306B (en) * | 2023-07-25 | 2023-12-19 | 无锡朗盼环境科技有限公司 | Waste water evaporating crystallizer device |
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