CN214457439U - High salt organic waste water temperature drop preprocessing device that contains - Google Patents
High salt organic waste water temperature drop preprocessing device that contains Download PDFInfo
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- CN214457439U CN214457439U CN202120394409.1U CN202120394409U CN214457439U CN 214457439 U CN214457439 U CN 214457439U CN 202120394409 U CN202120394409 U CN 202120394409U CN 214457439 U CN214457439 U CN 214457439U
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Abstract
The utility model provides a high salt organic wastewater temperature drop pretreatment device, which comprises a raw water pool, an ice melting groove, a heat exchange pool, a circulating pipe, a water ice pipe, a positive displacement pump and a filter screen, wherein the ice melting groove is partially positioned in the raw water pool, the heat exchange pool is communicated with the raw water pool, the circulating pipe is positioned in the heat exchange pool, the water ice pipe is connected with the heat exchange pool at one end, and the positive displacement pump and the filter screen are arranged on the water ice pipe; the other end of the water ice pipe extends to the upper part of the filter screen, and the filter screen extends to the upper part of the ice melting tank. The utility model provides a high salt organic waste water temperature drop preprocessing device contains salt organic waste water and temperature drop preprocessing back waste water and carries out preliminary heat transfer to the height, has not only reduced the temperature drop energy resource consumption, has reduced the ice crystal simultaneously and has melted the energy resource consumption, and salt content in the waste water that just can greatly reduced has obvious treatment effect to COD, has alleviateed the subsequent processing degree of difficulty.
Description
Technical Field
The utility model relates to a waste water treatment device technical field especially relates to a high salt organic waste water temperature drop preprocessing device that contains.
Background
In the production process of some industries such as chemical industry, pharmacy, food and the like, the discharge of high-salt organic wastewater causes serious water environment pollution due to direct discharge, and reasonable treatment is required. The COD in the water treated by adopting the biological treatment method is an economic and effective treatment mode, but high salinity can inhibit microorganisms, and when the salinity of the water is more than 1.0 percent, the microorganisms can generate the phenomenon of intracellular water exosmosis; when the salinity of the water is higher than 2.0%, the activity of the microorganisms is reduced and the microbial dehydration and disintegration phenomenon occurs. Therefore, the microbial treatment of the organic wastewater with high salt content needs pretreatment of salt in the wastewater to reduce the inhibitory effect of the salt on the microbes.
The general salt treatment can adopt methods such as evaporation, ion exchange, membrane separation, electrodialysis and the like, but the methods have many problems in actual operation due to high energy consumption, large investment, troublesome equipment operation and maintenance and the like, so that the method is difficult to implement.
The publication number is: chinese patent document CN101066819 provides "combined treatment process of high-concentration salt-containing hardly biodegradable organic industrial wastewater", which proposes freezing wastewater, taking out frozen ice, washing with clean water, melting, and performing subsequent photocatalytic treatment for standby; and (3) performing advanced treatment by a photocatalytic method, removing most of salt and organic matters in the wastewater by freezing, reducing the load of photocatalytic treatment, improving the photocatalytic efficiency and increasing the removal rate of COD by more than 30%. The scheme adopts the purified water to wash ice, and the purified water can dilute the wastewater, and meanwhile, the photocatalysis has the advantages that the requirement on salinity in water is not high, and the freezing degradation salinity and COD (chemical oxygen demand) significance before the photocatalysis is not great.
The publication number is: the Chinese patent document CN 101891269A provides a method for desalting wastewater, and proposes that the saline wastewater is pre-cooled to 0 ℃, the freezing temperature of the saline wastewater at 0 ℃ is 0-25 ℃ and is frozen for 3-10 h to form two parts of residual saline water and ice phase, the wastewater is completely frozen, the salt solubility is reduced along with the temperature reduction, the water quantity is reduced, the salt in the water is separated out and the ice is combined into a whole, and the separation of the salt and the water cannot be realized. The above method cannot realize continuous operation of high-salinity wastewater, and therefore cannot realize continuous treatment of high-salinity wastewater with a large amount of water.
Therefore, the continuous low-energy-consumption salt-reducing pretreatment of the high-salt-content organic wastewater is realized, has great significance for the high-efficiency treatment of the high-salt-content organic wastewater, and is an important technical problem to be solved by technical personnel in the field at present.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to disclose a high salt organic waste water temperature drop preprocessing device, contain salt organic waste water and temperature drop preprocessing back waste water to the height and carry out preliminary heat transfer, not only reduced the temperature drop energy resource consumption, reduced the ice crystal simultaneously and melted the energy resource consumption, and salt content in can the greatly reduced waste water has obvious treatment effect to COD, has alleviateed the subsequent processing degree of difficulty.
In order to achieve the purpose, the utility model provides a high-salt organic wastewater temperature drop pretreatment device, which comprises a raw water pool, an ice melting groove, a heat exchange pool, a circulating pipe, a water ice pipe, a displacement pump and a filter screen, wherein part of the ice melting groove is positioned in the raw water pool; the other end of the water ice pipe extends to the upper part of the filter screen, the filter screen extends to the upper part of the ice melting tank, and refrigerating fluid is arranged in the circulating pipe.
In some embodiments, the ice melting device further comprises a water inlet pipe connected to the raw water pool and a water outlet pipe connected to the ice melting tank, wherein the water outlet pipe is positioned in the water inlet pipe.
In some embodiments, the filter screen is in a cone shape, and further comprises a motor, a filter screen central shaft driven by the motor, and a plurality of filter screen supports connected to the filter screen central shaft, wherein the filter screen supports are connected to the inner wall of the filter screen.
In some embodiments, the ice melting heater is arranged on the outer wall or the inner wall of the filter screen.
In some embodiments, the device further comprises an advanced treatment tank communicated with the heat exchange tank through a pipe body, and a water pump is arranged on the pipe body.
In some embodiments, a water-stop baffle is arranged in the heat exchange tank.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a high salt organic waste water temperature drop preprocessing device contains salt organic waste water and temperature drop preprocessing back waste water and carries out preliminary heat transfer to the height, has not only reduced the temperature drop energy resource consumption, has reduced the ice crystal simultaneously and has melted the energy resource consumption, and salt content in the waste water that just can greatly reduced has obvious treatment effect to COD, has alleviateed the subsequent processing degree of difficulty.
Drawings
FIG. 1 is a schematic structural view of the high-salt content organic wastewater temperature drop pretreatment device of the present invention.
Detailed Description
The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that the functions, methods, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.
The temperature reduction pretreatment device for the organic wastewater with high salt content shown in fig. 1 comprises a raw water pool 2, an ice receiving tank 1 partially positioned in the raw water pool 2, a heat exchange pool 6 communicated with the raw water pool 2, a circulating pipe 16 positioned in the heat exchange pool 6, a water ice pipe 11 with one end connected with the heat exchange pool 6, a volumetric pump 13 arranged on the water ice pipe 11, and a filter screen 18.
The ice melting device further comprises a water inlet pipe 3 connected to the raw water pool 2 and a water outlet pipe 4 connected to the ice melting groove 1, wherein the water outlet pipe 4 is located in the water inlet pipe 3. High salt organic wastewater, namely raw water, enters a raw water pool 2 through a water inlet pipe 3, and the wastewater after temperature reduction pretreatment is discharged through a water outlet pipe 4.
The ice receiving and melting tank 1 is used for collecting ice crystals separated by the filter screen 17 and exchanging heat with the raw water tank 2 at the same time to melt the ice crystals, water obtained by melting is further exchanged heat with the water inlet pipe 3 through the water outlet pipe 4, the ice crystal melting water is heated to ensure the temperature required by subsequent biological treatment, meanwhile, the raw water is cooled, and subsequent temperature reduction energy is saved. The raw water flows through the water inlet pipe 3 for preliminary cooling, and then contacts the primary water pool 2 with the ice receiving tank 1 for further heat exchange and cooling.
The heat exchange tank 6 is communicated with the raw water tank 2 through the inclined plate 5, so that raw water can automatically flow into the heat exchange tank 6. The waste water entering the heat exchange tank 6 exchanges heat with refrigerating fluid in the circulating pipe 16, the temperature is reduced to below the freezing point to generate ice crystals, the ice crystals float on the upper part of the heat exchange tank 6 due to the fact that the density of the ice crystals is smaller than that of the water, the water is pressurized and conveyed to the filter screen 17 through the displacement pump 13 to be separated from the water, and the separated water falls into the heat exchange tank 6 again.
The other end of the water ice pipe 11 extends to the upper part of the filter screen 17, so that ice crystals and waste water can be sent to the filter screen 17, and the waste water falls into the heat exchange tank 6 again after being filtered by the filter screen 17. The screen 17 extends above the ice accretion tank 1 so that ice crystals can be fed into the ice accretion tank 1.
The filter screen 17 is in a cone-shaped cylinder, and further comprises a motor 10, a filter screen middle shaft 9 driven by the motor 10, and a plurality of filter screen supports 8 connected to the filter screen middle shaft 9, wherein the filter screen supports 8 are connected to the inner wall of the filter screen 17. The filter screen 17 can be driven to rotate by the motor 10, so that the ice crystals fall into the ice-melting tank 1, and the waste water falls into the heat exchange tank 6 again. A water-resisting baffle plate 12 is arranged in the heat exchange pool 6 to prevent water splash from splashing.
And the ice melting heater 7 is arranged on the outer wall or the inner wall of the filter screen 17 and is used for melting ice crystals remained in meshes of the filter screen 17, so that the filter screen 17 is prevented from being blocked to cause system abnormality due to accumulation of the ice crystals.
The device also comprises an advanced treatment pool 14 communicated with the heat exchange pool 6 through a pipe body, and a water pump 15 is arranged on the pipe body. Along with the water in the waste water forms the ice crystal gradually and separates, salt and other material in the heat exchange pond 6 increase gradually, and the freezing point of the waste water that mixes in the heat exchange pond 6 descends gradually, and the rise of salt concentration can lead to the crystallization of salt material to mix in the ice crystal simultaneously, and leads to the preliminary treatment effect to descend, in order to prevent above problem to appear, when salt concentration is high in the heat exchange pond 6, pump the high concentration waste water of heat exchange pond 6 into advanced treatment tank 14 through water pump 15 and carry out the advanced treatment. The salt and the water are separated by heating and evaporating in the advanced treatment tank 14.
The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The temperature reduction pretreatment device for the high-salt-content organic wastewater is characterized by comprising a raw water pool, an ice receiving groove, a heat exchange pool, a circulating pipe, a water ice pipe, a volume pump and a filter screen, wherein part of the ice receiving groove is positioned in the raw water pool; the other end of the water ice pipe extends to the upper part of the filter screen, the filter screen extends to the upper part of the ice melting tank, and refrigerating fluid is arranged in the circulating pipe.
2. The temperature reduction pretreatment device for high-salinity organic wastewater according to claim 1, further comprising a water inlet pipe connected to the raw water tank and a water outlet pipe connected to the deicing tank, wherein the water outlet pipe is positioned in the water inlet pipe.
3. The temperature reduction pretreatment device for high-salinity organic wastewater according to claim 1, wherein the filter screen is in a cone shape, and further comprises a motor, a filter screen central shaft driven by the motor, and a plurality of filter screen supports connected to the filter screen central shaft, wherein the filter screen supports are connected to the inner wall of the filter screen.
4. The temperature reduction pretreatment device for high-salinity organic wastewater according to claim 3, characterized in that an ice melting heater is arranged on the outer wall or the inner wall of the filter screen.
5. The temperature reduction pretreatment device for high-salinity organic wastewater according to claim 1, further comprising an advanced treatment tank communicated with the heat exchange tank through a pipe body, wherein a water pump is arranged on the pipe body.
6. The temperature reduction pretreatment device for high-salinity organic wastewater according to claim 1, characterized in that a water-proof baffle is arranged in the heat exchange tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120394409.1U CN214457439U (en) | 2021-02-22 | 2021-02-22 | High salt organic waste water temperature drop preprocessing device that contains |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120394409.1U CN214457439U (en) | 2021-02-22 | 2021-02-22 | High salt organic waste water temperature drop preprocessing device that contains |
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| Publication Number | Publication Date |
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| CN214457439U true CN214457439U (en) | 2021-10-22 |
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| CN202120394409.1U Active CN214457439U (en) | 2021-02-22 | 2021-02-22 | High salt organic waste water temperature drop preprocessing device that contains |
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2021
- 2021-02-22 CN CN202120394409.1U patent/CN214457439U/en active Active
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