CN108339286B - Injection type atomizing, concentrating and salt separating device - Google Patents
Injection type atomizing, concentrating and salt separating device Download PDFInfo
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- CN108339286B CN108339286B CN201810134702.7A CN201810134702A CN108339286B CN 108339286 B CN108339286 B CN 108339286B CN 201810134702 A CN201810134702 A CN 201810134702A CN 108339286 B CN108339286 B CN 108339286B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/16—Evaporating by spraying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/16—Evaporating by spraying
- B01D1/20—Sprayers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
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Abstract
The invention discloses a jet type atomization concentration salt separation device, which comprises a constant temperature atomization device and a ground source heat pump system communicated with the constant temperature atomization device, wherein the top of the constant temperature atomization device is provided with a constant temperature water bath tank and a built-in atomizer which are communicated with the ground source heat pump system, and a strong fan is arranged in the constant temperature atomization device; the ground source heat pump system comprises a ground source heat pump host, a raw water tank and a fresh water tank which are mutually communicated, the fresh water tank is communicated with the constant-temperature water bath tank, the raw water tank is communicated with the atomizer through a booster sewage pump, atomized saline raw water is sprayed out from a plurality of nozzles of the atomizer under the action of a powerful fan, and further atomization is carried out under the action of a spiral scraping blade on the atomizer. The device fully utilizes available energy, synchronously realizes raw water atomization, and achieves the purposes of evaporating moisture and concentrating and separating salt in relatively dry air.
Description
Technical Field
The invention belongs to the field of evaporation concentration, and particularly relates to a jet type atomization concentration salt separation device.
Background
At present, there are two main methods for evaporation concentration of brine: 1. the salt water is naturally evaporated and concentrated by solar energy, wind energy and the like through salt field salt drying. The method utilizes natural evaporation processes of solar energy, wind energy and the like, has low energy consumption, but has the defects of large use area of a salt pan, low evaporation efficiency, long period, limitation of natural conditions of the salt pan and the like; 2. the forced evaporation process is adopted to forcibly evaporate and concentrate the brine through the evaporator, and the method has the advantages of high evaporation efficiency and small occupied area, but has the defects of high equipment cost and high energy consumption. The brine is sprayed out after being atomized by the atomizing equipment, the contact area of atomized liquid drops and air can be greatly increased, and the moisture on the surfaces of the liquid drops can be rapidly taken away by the air, so that the evaporation efficiency is improved. Patent (CN 101385904a) proposes a brine concentration method, in which an atomizing head is installed above a brine pool, and after brine is atomized, the contact area with air is increased to improve evaporation efficiency, so that brine is concentrated. The method only controls the height of the atomizing head from the brine pool and the working pressure, on one hand, the evaporation salt separation process is difficult to control, the evaporation efficiency is not easy to design, the evaporation process is single, and on the other hand, the atomizing head is easy to have salt crystallization to cause blockage, so that the equipment cannot continuously run. Based on the above, it is necessary to develop an evaporation, concentration and salt separation device with high evaporation efficiency, short period, difficult blockage of the atomizing head, easy control of the evaporation process, low energy consumption and low cost.
Disclosure of Invention
The invention aims to provide a jet type salt atomizing, concentrating and separating device aiming at the problems of low evaporation efficiency, long period, easy blockage of an atomizing head, high energy consumption, high equipment cost and the like of the existing evaporation and concentration method. The heat in the high-salinity raw water is absorbed by a ground source heat pump system through a heat exchanger and then transferred to a fresh water tank of a circulating water bath constant temperature system, and the temperature of the fresh water is raised to raise the temperature of a constant temperature atomization device and the high-salinity raw water, so that the problem that a high-salinity raw water atomization nozzle is easy to crystallize and block is solved; the water in the raw water tank is reduced in temperature, so that partial salt is separated out due to the reduction of solubility, and the aim of partial salt separation of high-salinity raw water is fulfilled; reduce high salt raw water of salinity and transmit constant temperature atomizer through water supply system, the atomizer is with high salt raw water with the blowout of water smoke form, and the propelling movement of atomizing high salt raw water through powerful fan makes moisture rapid evaporation with the air fully contact, and high salt raw water obtains the concentration.
The invention is realized by the following technical scheme.
The invention provides a jet type atomization concentration salt separation device, which comprises a constant-temperature atomization device and a ground source heat pump system communicated with the constant-temperature atomization device, wherein the top of the constant-temperature atomization device is provided with a constant-temperature water bath tank and a built-in atomizer which are communicated with the ground source heat pump system, and a strong fan is arranged in the constant-temperature atomization device;
the ground source heat pump system comprises a ground source heat pump host, a raw water tank and a fresh water tank which are mutually communicated, the fresh water tank is communicated with the constant-temperature water bath tank, the raw water tank is communicated with the atomizer through a booster sewage pump, the atomized saline raw water is sprayed out from a plurality of nozzles of the atomizer under the action of a powerful fan, and further atomization is carried out under the action of a spiral scraping blade on the atomizer.
Further, the raw water tank is communicated to a high-concentration brine pipeline of the atomizer through a booster sewage pump; the fresh water tank is circularly communicated to the constant-temperature water bath tank of the atomizer through the clean water pump.
Further, the raw water tank and the fresh water tank are communicated with a ground source heat pump host through a refrigerant/water heat exchanger to form closed cycle; the refrigerant/water heat exchanger in the raw water tank is immersed in high-salinity raw water to absorb heat, and the refrigerant/water heat exchanger in the fresh water tank is immersed in fresh water to release heat.
Furthermore, the atomizer comprises a plurality of annularly arranged atomizing nozzles, the atomizing nozzles are barrel-shaped, a self-rotating spiral scraping blade is arranged at the top of the atomizing nozzle barrel, and a self-rotating spiral fixing piece is arranged at the opening of the atomizing nozzle barrel; and the self-rotating spiral scraping blade and the self-rotating spiral fixing piece are coaxially arranged.
Furthermore, the atomizer main part submerges in the constant temperature water bath box, and the atomizing nozzle of atomizer stretches out along the constant temperature water bath box, and inclines to centre of a circle direction.
Furthermore, the constant temperature water bath box is a circular ring-shaped box body, and the temperature in the constant temperature water bath box is higher than the local temperature of the device in use.
Furthermore, the constant-temperature atomization device is cylindrical and is arranged on a base of the constant-temperature atomization device in an inclined angle; the powerful fans are respectively arranged at the upper part and the lower part of the barrel of the constant-temperature atomizing device.
Further, the machine base is a fixed table or is provided with movable wheels.
Compared with the prior art, the invention has the advantages and beneficial effects that:
constant temperature atomizing system installs and makes the atomising head and atomize in the water bath thermostat before raw water temperature is higher, the high salt raw water salt that is close saturated concentration in the atomizing blowout in-process is difficult for crystallization to appear, for further solving the easy jam problem of atomising head, install the doctor-bar additional in nozzle department, utilize the powerful kinetic energy drive doctor-bar of pressure boost high concentration salt solution rotatory, can solve like this from the epitaxial easy solid salt grain that piles up of atomizer mouth and cause the problem of spout jam, can also increase the dense water atomization of spun high salt simultaneously, the dispersion. The ground source heat pump system absorbs heat in the raw water tank into the refrigerant through evaporation of the refrigerant in the refrigerant/water heat exchanger, the temperature of the saturated high-salinity raw water is reduced, and solid can be separated out when the solubility of part of potassium chloride is reduced along with the temperature reduction, so that the salt concentration of the saturated high-salinity raw water is reduced. The refrigerant is condensed in the refrigerant/water heat exchanger while circulating, and the fresh water in the constant-temperature water bath circulating system absorbs the heat carried by the refrigerant, so that the atomizer is in a constant-temperature state higher than the temperature of the raw water. The whole process makes full use of available energy, realizes raw water atomization synchronously, achieves the purposes of evaporating water and concentrating and separating salt in relatively dry air, and can be widely applied to the processes of recovering large-area brine high-efficiency concentrating and separating salt and inorganic salt synthetic products, separating and removing impurities among various salt products and the like.
The device has simple process and low equipment requirement. The device is simple and rapid, easy to operate, strong in practicability, low in cost and easy for large-scale industrial production.
Drawings
FIG. 1 is a diagram of a spray type atomizing concentration salt-separating device of the present invention.
FIG. 2 is a schematic view of a constant temperature atomizing apparatus and a nozzle structure.
In fig. 1: 1. the system comprises a ground source heat pump host, 2, a refrigerant/water heat exchanger, 3, a raw water tank, 4, a fresh water tank, 5, a constant temperature water bath tank, 6, a strong fan, 7, a constant temperature atomization device, 8, an atomizer, 9, a clean water pump, 10, a booster sewage pump, 11, a constant temperature atomization device base, 12 and a high-concentration saline water pipeline.
In fig. 2: 13. a spiral scraping blade, 14, a self-rotating spiral fixing sheet.
Detailed Description
The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention in any way.
As shown in fig. 1, the jet type atomization, concentration and salt separation device of the present invention comprises a constant temperature atomization device 7 and a ground source heat pump system communicated with the constant temperature atomization device 7, wherein the top of the constant temperature atomization device 7 is provided with a constant temperature water bath 5 and a built-in atomizer 8 communicated with the ground source heat pump system, and the constant temperature atomization device 7 is provided with a strong fan 6; the constant temperature atomization device 7 is cylindrical and is arranged on a base 11 of the constant temperature atomization device in an inclined angle; the powerful fans 6 are respectively arranged at the upper part and the lower part of the cylinder body of the constant temperature atomization device 7. The ground source heat pump system comprises a ground source heat pump host 1, a raw water tank 3 and a fresh water tank 4 which are mutually communicated, wherein the ground source heat pump host 1, a refrigerant/water heat exchanger 2 in the raw water tank 3 and a refrigerant/water heat exchanger 2 in the fresh water tank 4 are mutually communicated to form closed cycle; the refrigerant/water heat exchanger 2 in the raw water tank 3 is immersed in high-salinity raw water to absorb heat, and the refrigerant/water heat exchanger 2 in the fresh water tank 4 is immersed in fresh water to release heat. The fresh water tank 4 is circularly communicated to the interlayer wall of the constant-temperature water bath tank 5 of the atomizer 8 through the clean water pump 9, the raw water tank 3 is communicated with the high-concentration salt water pipeline 12 of the atomizer 8 through the booster sewage pump 10, and the atomized raw water is sprayed out from a plurality of nozzles of the atomizer 8 under the action of the powerful fan 6 and is further atomized under the action of the spiral scraper 13 on the atomizer 8.
As shown in fig. 2, the built-in atomizer 8 includes a plurality of annularly arranged atomizing nozzles, the atomizing nozzles are barrel-shaped, a self-rotating spiral scraping blade 13 is arranged at the top of the atomizing nozzle barrel, and a self-rotating spiral fixing blade 14 is arranged at the mouth of the atomizing nozzle barrel; and the self-rotating spiral scraping blade 13 and the self-rotating spiral fixing piece 14 are coaxially arranged. The main body of the built-in atomizer 8 is immersed in the constant temperature water bath box 5, and the atomizing nozzle spray nozzle of the built-in atomizer 8 extends out along the constant temperature water bath box 5 and inclines towards the direction of the circle center.
The number of the built-in atomizers 8 immersed in the constant temperature water bath tank 5 is a certain number, and the specific number is selected according to the requirement. The constant temperature water bath box 5 is a circular box body which is filled with fresh water and is provided with two interfaces, and the constant temperature water bath box 5 is connected with the fresh water box 4 through a clean water pump to ensure that the temperature in the constant temperature water bath box 5 is higher than the local temperature of the device during use; the nozzle opening of the built-in atomizer 8 immersed in the constant temperature water bath tank 5 points to the center of the circular constant temperature water bath tank, and the nozzle opening can deflect in a certain direction along the pointing axial direction.
The spiral scraping blade 13 and the nozzle inner opening of the atomizer 8 nozzle opening are provided with self-rotating spiral fixing pieces 14, under the action of strong power of the booster sewage pump 10, the spiral scraping blade 13 with a spiral structure at the nozzle opening and the self-rotating spiral fixing pieces 14 at the nozzle inner opening rotate at high speed by taking the axis of a middle connecting rotating shaft as a circle center, salt precipitation crystals accumulated at the outer edge of the nozzle opening in the atomization process are scraped, raw water is sprayed out from the rotating shaft and the nozzle through a gap, the raw water is further atomized under the action of the spiral scraping pieces 13, the spiral scraping blade 13 and the self-rotating spiral fixing pieces 14 at the nozzle opening and the nozzle inner opening can reach 1-3mm through the gap connecting the rotating shaft, the atomization amount of the raw water is large, and the atomization.
A strong fan 6 is arranged below the inside of a constant temperature water bath box 5 in the constant temperature atomization system, and the wind direction of the strong fan 6 is outward along the axial direction of the circle center of the circular ring-shaped box body.
The heat supply system comprises a clean water pump 9, a fresh water tank 4 and a constant temperature water bath tank 5 connected with pipelines to form closed circulation; the heating system ensures that high-concentration salt water of a nozzle of the constant-temperature atomization system is lower than a saturated state, and simultaneously absorbs heat in the raw water tank, so that partial salt is separated out and desalted due to temperature reduction.
The high-salinity raw water supply system consists of a booster sewage pump 10, a raw water tank 3 and a high-concentration salt water pipeline 12; the booster sewage pump 10 is used for supplying water to the raw water tank, high-concentration salt water is atomized by the built-in atomizer 8 of the constant-temperature atomization system immersed in the constant-temperature water bath tank 5 through the high-concentration salt water pipeline 12, and is pushed by the powerful fan 6, so that atomized brine can be delivered to 50-60 meters at the farthest, water is dissipated in the air, and the purposes of brine concentration and salt separation are achieved.
The principle of the invention is as follows: the raw water is changed into water mist to be dispersed through the constant-temperature atomizer, and water molecules on the surfaces of liquid drops are rapidly taken away by air due to large contact area and strong interaction between the liquid drops and the air, so that the raw water is concentrated. Meanwhile, the atomizer is arranged in the water bath thermostat, so that the temperature of the atomizing head and the raw water before atomization is higher, salt in the raw water is not easy to crystallize and separate out in the atomization and ejection process, and the raw water is further atomized through the spiral scraping blade of the nozzle opening due to the fact that the atomized water amount is large and the nozzle opening is large, so that the problem that the atomizing head is easy to block is solved. The ground source heat pump system absorbs heat in the raw water tank into the refrigerant through evaporation of the refrigerant in the refrigerant/water heat exchanger, the temperature of the raw water is reduced, and solid can be separated out from part of monovalent potassium chloride with the reduction of the temperature, so that the ground source heat pump system can be used for separating and purifying potassium chloride. The refrigerant is condensed in the refrigerant/water heat exchanger while circulating, and the fresh water in the constant-temperature water bath circulating system absorbs the heat carried by the refrigerant to ensure that the atomizing device is at a constant temperature.
The steps of the embodiment of the invention are as follows:
a. the heat released by temperature rise comes from the heat absorbed by the ground source heat pump system from the raw water;
b. preheating a constant-temperature atomization device by using warm fresh water in the step a, wherein the temperature is 10-15 ℃ higher than the local temperature;
c. the ground source heat pump system absorbs heat in the high-salinity brine through the refrigerant/water heat exchanger, so that the temperature of the raw brine is reduced by 5-10 ℃, and salt solids (salt with reduced temperature and reduced solubility) with the solubility easy to change due to temperature change are separated out;
d. the brine with reduced salinity is drawn by the atomizer and atomized by the dual action of the heated constant temperature atomizer nozzle and the nozzle spiral scraper;
e. and d, pushing the atomized brine by a powerful fan in the step d, so that the atomized brine can be delivered to 50-60 m furthest, and the water is dissipated in the air, thereby achieving the purposes of brine concentration and salt separation.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (7)
1. The utility model provides a spray type atomizing concentration divides salt device which characterized in that: the ground source heat pump constant-temperature atomizing device comprises a constant-temperature atomizing device (7) and a ground source heat pump system communicated with the constant-temperature atomizing device (7), wherein a constant-temperature water bath box (5) and a built-in atomizer (8) communicated with the ground source heat pump system are arranged at the top of the constant-temperature atomizing device (7), and a strong fan (6) is arranged in the constant-temperature atomizing device (7);
the ground source heat pump system comprises a ground source heat pump host (1), a raw water tank (3) and a fresh water tank (4) which are mutually communicated, wherein the fresh water tank (4) is communicated with a constant temperature water bath tank (5), the raw water tank (3) is communicated with an atomizer (8) through a booster sewage pump (10), atomized raw water is sprayed out from a plurality of nozzles of the atomizer (8) under the action of a powerful fan (6), a self-rotating spiral scraping blade (13) is arranged at the top of the atomizing nozzles, and further atomization is carried out under the action of the spiral scraping blade (13) on the atomizer (8);
the raw water tank (3) and the fresh water tank (4) are communicated with the ground source heat pump host (1) through the refrigerant heat exchanger (2) to form closed cycle; the refrigerant heat exchanger (2) in the raw water tank (3) is immersed in high-salinity raw water to absorb heat, and the refrigerant heat exchanger (2) in the fresh water tank (4) is immersed in fresh water to release heat.
2. The spray atomizing concentrated salt separating device according to claim 1, wherein: the raw water tank (3) is communicated to a high-concentration salt water pipeline (12) of the atomizer (8) through a booster sewage pump (10); the fresh water tank (4) is circularly communicated with the constant-temperature water bath tank (5) of the atomizer (8) through a clean water pump (9).
3. The spray atomizing concentrated salt separating device according to claim 1, wherein: the atomizer (8) comprises a plurality of annularly arranged atomizing nozzles, the atomizing nozzles are barrel-shaped, and a self-rotating spiral fixing piece (14) is arranged at the opening of each atomizing nozzle; and the self-rotating spiral scraping blade (13) and the self-rotating spiral fixing piece (14) are coaxially arranged.
4. The spray atomizing concentrated salt separating device according to claim 3, wherein: the atomizer (8) main part submerges in constant temperature water bath (5), and the atomizing nozzle atomising mouth of atomizer (8) stretches out along constant temperature water bath (5) box, and inclines to centre of a circle direction.
5. The spray atomizing concentrated salt separating device according to claim 1, wherein: the constant temperature water bath box (5) is a circular ring-shaped box body, and the temperature in the constant temperature water bath box (5) is higher than the local temperature of the device in use.
6. The spray atomizing concentrated salt separating device according to claim 1, wherein: the constant-temperature atomizing device (7) is cylindrical and is arranged on a base (11) of the constant-temperature atomizing device in an inclined angle; the powerful fans (6) are respectively arranged at the upper part and the lower part of the cylinder body of the constant-temperature atomizing device (7).
7. The spray atomizing concentrated salt separating device according to claim 6, wherein: the machine base (11) is a fixed table or is provided with movable wheels.
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| CN201810134702.7A CN108339286B (en) | 2018-02-09 | 2018-02-09 | Injection type atomizing, concentrating and salt separating device |
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| CN108314066B (en) * | 2018-02-09 | 2019-09-03 | 陕西省膜分离技术研究院有限公司 | A kind of poor lithium brine salt reduction richness lithium method and device thereof |
| CN114515437A (en) * | 2022-01-29 | 2022-05-20 | 无锡恒诚硅业有限公司 | Drying nozzle assembly |
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| WO1997013722A1 (en) * | 1995-10-11 | 1997-04-17 | Krebs & Co. Ag | Salt extraction process and device |
| CN104495967A (en) * | 2014-12-02 | 2015-04-08 | 江苏万邦达环保科技有限公司 | High-concentration sewage accelerated-evaporation equipment |
| CN108314066B (en) * | 2018-02-09 | 2019-09-03 | 陕西省膜分离技术研究院有限公司 | A kind of poor lithium brine salt reduction richness lithium method and device thereof |
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2018
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Patent Citations (6)
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| EP0351143A2 (en) * | 1988-07-12 | 1990-01-17 | GEOPHYSICAL ENGINEERING COMPANY (a Delaware corporation) | Evaporating and cooling liquid |
| CN1081118A (en) * | 1992-07-10 | 1994-01-26 | 王抗曝 | Method and apparatus with separation of toxic contaminants by nebulization |
| CN1101009A (en) * | 1993-09-29 | 1995-04-05 | 吉林省文化发展总公司 | Rapid seawater evaporation type salt extraction equipment and method thereof |
| WO1997013722A1 (en) * | 1995-10-11 | 1997-04-17 | Krebs & Co. Ag | Salt extraction process and device |
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