CN214270569U - Zero-emission treatment system for evaporation mother liquor - Google Patents
Zero-emission treatment system for evaporation mother liquor Download PDFInfo
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- CN214270569U CN214270569U CN202023081943.1U CN202023081943U CN214270569U CN 214270569 U CN214270569 U CN 214270569U CN 202023081943 U CN202023081943 U CN 202023081943U CN 214270569 U CN214270569 U CN 214270569U
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Abstract
The utility model discloses a system is dealt with in evaporation mother liquor zero release, including the evaporation mother liquor collecting pit that sets gradually, the intermittent reaction pond, solid-liquid separation equipment, the liquid reserve tank, low temperature evaporation concentration device and washing spray column, evaporation mother liquor collecting pit connects the intermittent reaction pond, the other dosing tank that is equipped with of intermittent reaction pond, the intermittent reaction pond passes through the sludge pump and connects solid-liquid separation equipment, solid-liquid separation equipment's filtrating export is passed through the pipe connection liquid reserve tank, low temperature evaporation concentration device is connected to the liquid reserve tank, low temperature evaporation concentration device is including dry air entry, the humid air export, inlet and concentrate export, humid air exit linkage washing spray column, concentrate exit linkage evaporation mother liquor collecting pit, dry air entry fills into dry air. The utility model discloses can effectively handle the decrement processing to evaporation mother liquor, realize zero pollutant discharge in the processing procedure. Compared with a large amount of evaporation mother liquor as a liquid hazardous fee disposal process, the method can effectively reduce the treatment cost.
Description
Technical Field
The utility model belongs to the technical field of the waste liquid treatment, concretely relates to evaporation mother liquor zero release processing system.
Background
Along with the stricter and stricter domestic environmental protection discharge standards, the treatment technologies mainly based on single-effect evaporation, multi-effect evaporation and MVR evaporation technologies appear for the treatment of the refractory wastewater, such as high-salt, high-COD and high-total-nitrogen wastewater of landfill leachate, pharmaceutical wastewater, electroplating wastewater and the like, so as to realize the zero-discharge treatment of the refractory wastewater. However, due to the complex components in the refractory wastewater, especially the presence of organic pollutants, calcium and magnesium ions, scale can form on the surface of the evaporator, which seriously affects the normal operation of the evaporator, resulting in low concentration of the evaporation mother liquor after evaporation concentration and generation of a large amount of evaporation mother liquor. The evaporation mother liquor has unstable water quality and large fluctuation, is often treated as hazardous waste and has high cost.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a system is dealt with in evaporation mother liquor zero release, is including evaporation mother liquor collecting pit, intermittent type reaction pond, solid-liquid separation equipment, liquid reserve tank, low temperature evaporation concentration device and the washing spray column that sets gradually, evaporation mother liquor collecting pit passes through the elevator pump and connects intermittent type reaction pond, and the other dosing tank that is equipped with of intermittent type reaction pond, intermittent type reaction pond pass through the sludge pump and connect solid-liquid separation equipment, and solid-liquid separation equipment's filtrating export passes through the pipe connection liquid reserve tank, and the liquid reserve tank is through the inner circulating pipe connection low temperature evaporation concentration device who installs the inner circulating pump, and low temperature evaporation concentration device is including dry air inlet, humid air outlet, inlet and concentrate export, and wet air exit linkage washing spray column, concentrate exit linkage evaporation mother liquor collecting pit, and dry air inlet fills dry air.
Preferably, the supply tank includes a coagulant supply tank for supplying a coagulant to the batch reaction tank and a flocculant supply tank for supplying a flocculant to the batch reaction tank.
Preferably, the liquid in the internal circulation pipe is heated by the first heat exchanger.
Preferably, the dry air inlet is connected to a second heat exchanger, and the dry air enters the dry air inlet after passing through the second heat exchanger.
Preferably, the first heat exchanger comprises a steam inlet, a steam outlet, a heated inlet and a heated outlet, the second heat exchanger comprises a steam inlet, a steam outlet, a heated inlet and a heated outlet, the steam inlet of the first heat exchanger is connected with steam, the steam outlet of the first heat exchanger is connected with the steam inlet of the second heat exchanger, the heated inlet of the first heat exchanger is connected with the liquid storage tank through an inner circulating pipe, the heated outlet of the first heat exchanger is connected with a liquid inlet of the low-temperature evaporation concentration device through an inner circulating pipe, the heated inlet of the second heat exchanger is connected with an air blower, and the heated outlet of the second heat exchanger is connected with a dry air inlet of the low-temperature evaporation concentration device.
Preferably, a three-way valve is arranged between the steam outlet of the first heat exchanger and the steam inlet of the second heat exchanger, and the three-way valve is connected with steam.
Preferably, in the above-described aspect, a stirrer is installed in the batch reaction tank.
The utility model has the advantages that: the utility model discloses can effectively carry out decrement processing to evaporation mother liquor, realize zero pollutant discharge in the processing procedure. Compared with a large amount of evaporation mother liquor as a liquid hazardous fee disposal process, the method can effectively reduce the treatment cost.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in figure 1, a zero release processing system of evaporation mother liquor, including evaporation mother liquor collecting pit, intermittent reaction pond, solid-liquid separation equipment, liquid reserve tank, low temperature evaporation concentration device and the washing spray column that sets gradually, evaporation mother liquor collecting pit passes through the elevator pump and connects intermittent reaction pond, the other dosing tank that is equipped with of intermittent reaction pond, intermittent reaction pond passes through the sludge pump and connects solid-liquid separation equipment, solid-liquid separation equipment's filtrate export passes through the pipe connection liquid reserve tank, the liquid reserve tank is through the inner circulating pipe connection low temperature evaporation concentration device who installs the internal circulating pump, low temperature evaporation concentration device is including dry air inlet, humid air outlet, inlet and concentrate export, wet air exit linkage washing spray column, concentrate exit linkage evaporation mother liquor collecting pit, dry air inlet fills into dry air.
Further, the dosing tank comprises a coagulant dosing tank for adding a coagulant into the batch reaction tank and a flocculant dosing tank for adding a flocculant into the batch reaction tank.
Further, the liquid in the inner circulating pipe is heated through the first heat exchanger.
Furthermore, the dry air inlet is connected with a second heat exchanger, and dry air enters the dry air inlet after passing through the second heat exchanger.
Further, first heat exchanger is including steam inlet, steam outlet, the import of being heated and the export of being heated, the second heat exchanger is including steam inlet, steam outlet, the import of being heated and the export of being heated, steam inlet access steam of first heat exchanger, the steam inlet of the steam outlet connection second heat exchanger of first heat exchanger, the import of being heated of first heat exchanger passes through the inner circulating pipe and connects the liquid reserve tank, the export of being heated of first heat exchanger passes through the inlet of inner circulating pipe connection low temperature evaporation concentration device, the import of being heated of second heat exchanger is connected with the air-blower, the export of being heated of second heat exchanger connects low temperature evaporation concentration device's dry air inlet.
Preferably, a three-way valve is arranged between the steam outlet of the first heat exchanger and the steam inlet of the second heat exchanger, and the three-way valve is connected with steam.
The specific treatment process comprises the following steps:
(1) lifting the evaporation mother liquor to a batch reaction tank, and sequentially adding a coagulant and a flocculant to the batch reaction tank for stirring and coagulating to form a mixed solution;
(2) and 2, after the reaction in the step 2 is finished, pumping the mixed liquid into a solid-liquid separation device by using a sludge pump, and carrying out solid-liquid separation. The filtrate enters a liquid storage tank, and mud cakes are packed and then disposed outside;
(3) pumping the filtrate into a heat exchanger 1 through an internal circulating pump, heating to 40-70 ℃, and then feeding into a low-temperature evaporation and concentration device; the dry air is heated to 40-70 ℃ by the heat exchanger 2 and then enters a low-temperature evaporation device, the air is converted into high-humidity waste gas after moisture absorption, and the high-humidity waste gas is treated by a water washing spray tower and then is discharged after reaching the standard;
(4) periodically discharging the concentrated solution in the evaporation concentration device to an evaporation mother liquor collecting tank, and carrying out coagulation reaction with the evaporation mother liquor;
(5) and (4) repeating the steps 1, 2, 3 and 4 until the evaporated mother liquor is treated.
It is worth mentioning that the utility model discloses the technical characteristics such as low temperature evaporation enrichment facility, first heat exchanger, second heat exchanger, washing spray column that the patent application relates to should be regarded as prior art, and the concrete structure of these technical characteristics, theory of operation and the control mode that probably involves, spatial arrangement mode adopt the conventional selection in this field can, should not be regarded as the utility model discloses a point of invention is in, the utility model discloses a do not do further specific expansion detailing.
Having described in detail preferred embodiments of the present invention, it is to be understood that modifications and variations can be made by persons skilled in the art without inventive faculty, and therefore all technical solutions which can be obtained by a person skilled in the art based on the concepts of the present invention through logic analysis, reasoning or limited experimentation will fall within the scope of protection defined by the claims.
Claims (7)
1. The utility model provides a system is dealt with in evaporation mother liquor zero release, a serial communication port, including evaporation mother liquor collecting pit, intermittent type reaction tank, solid-liquid separation equipment, liquid reserve tank, low temperature evaporation concentration device and the washing spray column that sets gradually, evaporation mother liquor collecting pit passes through the elevator pump and connects intermittent type reaction tank, and the other dosing tank that is equipped with in intermittent type reaction tank, intermittent type reaction tank pass through the sludge pump and connect solid-liquid separation equipment, and solid-liquid separation equipment's filtrate export passes through the pipe connection liquid reserve tank, and the liquid reserve tank is through the inner circulating pipe connection low temperature evaporation concentration device who installs the inner circulating pump, and low temperature evaporation concentration device is including dry air inlet, humid air outlet, inlet and concentrate export, and wet air exit linkage washing spray column, concentrate exit linkage evaporation mother liquor collecting pit, and dry air inlet fills dry air.
2. The zero-emission treatment system for evaporation mother liquor according to claim 1, wherein the dosing tank includes a coagulant dosing tank for adding a coagulant to the batch reaction tank and a flocculant dosing tank for adding a flocculant to the batch reaction tank.
3. The evaporative mother liquor zero-emission disposal system of claim 2, wherein the liquid in the internal circulation pipe is heated by a first heat exchanger.
4. The evaporative mother liquor zero-emission disposal system of claim 3, wherein the drying air inlet is connected with a second heat exchanger, and the drying air enters the drying air inlet after passing through the second heat exchanger.
5. The evaporation mother liquor zero-emission treatment system as claimed in claim 4, wherein the first heat exchanger comprises a steam inlet, a steam outlet, a heated inlet and a heated outlet, the second heat exchanger comprises a steam inlet, a steam outlet, a heated inlet and a heated outlet, the steam inlet of the first heat exchanger is connected with steam, the steam outlet of the first heat exchanger is connected with the steam inlet of the second heat exchanger, the heated inlet of the first heat exchanger is connected with the liquid storage tank through an internal circulation pipe, the heated outlet of the first heat exchanger is connected with the liquid inlet of the low-temperature evaporation concentration device through an internal circulation pipe, the heated inlet of the second heat exchanger is connected with an air blower, and the heated outlet of the second heat exchanger is connected with the dry air inlet of the low-temperature evaporation concentration device.
6. The zero-emission treatment system for evaporation mother liquor as claimed in claim 5, wherein a three-way valve is arranged between the steam outlet of the first heat exchanger and the steam inlet of the second heat exchanger, and the three-way valve is connected with steam.
7. The zero-emission evaporation mother liquor disposal system of claim 6, wherein an agitator is installed in the batch reaction tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023081943.1U CN214270569U (en) | 2020-12-19 | 2020-12-19 | Zero-emission treatment system for evaporation mother liquor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023081943.1U CN214270569U (en) | 2020-12-19 | 2020-12-19 | Zero-emission treatment system for evaporation mother liquor |
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| CN214270569U true CN214270569U (en) | 2021-09-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114212948A (en) * | 2021-11-25 | 2022-03-22 | 嘉兴溪上源环保科技有限公司 | Treatment method of waste engine oil/lubricating oil regeneration distillation wastewater |
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2020
- 2020-12-19 CN CN202023081943.1U patent/CN214270569U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114212948A (en) * | 2021-11-25 | 2022-03-22 | 嘉兴溪上源环保科技有限公司 | Treatment method of waste engine oil/lubricating oil regeneration distillation wastewater |
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