CN218811125U - Waste emulsion treatment system - Google Patents
Waste emulsion treatment system Download PDFInfo
- Publication number
- CN218811125U CN218811125U CN202222758222.2U CN202222758222U CN218811125U CN 218811125 U CN218811125 U CN 218811125U CN 202222758222 U CN202222758222 U CN 202222758222U CN 218811125 U CN218811125 U CN 218811125U
- Authority
- CN
- China
- Prior art keywords
- tank
- emulsion
- waste
- communicated
- concentrated solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The utility model discloses a waste emulsion processing system, including pretreatment systems, the evaporation system, dense fluid processing system, the comdenstion water system of dealing with, earlier retrieve through the oil slick in pretreatment systems with waste emulsion, waste emulsion gets into the dense fluid pond after the evaporative concentration reaches certain proportion and stews, the back is handled through drying equipment, make the emulsion finally all turn into solid residue and form mud, steam lets in after the condensation system and burns the system, replace the fresh water and carry out the cooling of system as the cooling water, thereby reach the waste water zero release, practice thrift the effect of fresh water.
Description
Technical Field
The utility model belongs to waste water multi-stage treatment field especially relates to a useless emulsion processing system.
The utility model belongs to a technology and equipment for treating and recycling industrial wastewater which is difficult to treat and is used for 7.2.1 water pollution prevention and treatment equipment in the 7 energy-saving environment-friendly industry of the strategic novel industry catalog in the key direction of 7.2 advanced environment-friendly industry. A high-concentration degradation-resistant organic wastewater treatment technology.
Background
The emulsion is a high-performance semisynthetic metal working fluid and mainly comprises water, organic oil, a surfactant, an antirust additive, an extreme pressure additive, a friction modifier, an antioxidant and the like. Because metal usually has high temperature and a large amount of metal chips in the machining process, most machining processes use emulsion, and the emulsion can cool, lubricate, prevent rust and the like for the processed metal in the processes of metal cutting, grinding and the like.
The emulsion suffers from a decrease in rancidity after repeated use, and therefore needs to be replaced with a new emulsion after a period of use. The used emulsion can not be directly reused, because the organic oil in the emulsion can be dispersed in water and is easy to be absorbed by animals and plants; the surfactant in the emulsion is harmful to organisms and can dissolve some toxic substances which are not dissolved in water; the antirust agent in the emulsion generally contains sodium nitrite, and the sodium nitrite is easily converted into carcinogenic ammonium nitrite; therefore, the emulsion is discharged into the natural environment, and the ecological system is seriously damaged.
The conventional emulsion treatment system generally fishes out floating oil through a regulating reservoir and the like, then decomposes organic matters through anaerobic fermentation, removes COD and ammonia nitrogen through aerobic fermentation, uses various filtering devices to perform multiple filtering during the period, dries filter residues to form sludge, and clarifies the effluent to reach the standard and discharge the effluent. For example, chinese patent 201922450604.7 discloses a waste emulsion treatment system, wherein after the waste emulsion is subjected to oil collection in a pretreatment system, multiple filtration is performed by a plurality of filtration devices, such as a cartridge filter, an ultrafiltration device, an MBR tank, a nanofiltration device, and a reverse osmosis device, and the process is complex and the cost is high.
Disclosure of Invention
In order to solve the problem, the utility model provides a simple process, it is with low costs, do not need multiple filter equipment's useless emulsion processing system.
The object of the invention is achieved in the following way:
a waste emulsion treatment system comprises a pretreatment system, an evaporation system, a concentrated solution treatment system and a condensed water treatment system, wherein the pretreatment system comprises a collection tank which is connected with an air floatation tank through a pipeline; the evaporation system comprises a preheater, the air floatation tank is communicated with the preheater through a water pump, the preheater is communicated with an evaporator through the water pump, the evaporator makes emulsion circulate forcibly through a circulating pump, a silk screen demister is arranged at the upper part of the evaporator, and a pipeline of the evaporator is connected with a condenser; the concentrated solution treatment system comprises a concentrated solution tank and drying equipment, wherein a circulating pump is communicated with the concentrated solution tank through a pipeline, and the concentrated solution tank is communicated with the drying equipment through a water pump; the condensed water disposal system comprises a condensed water storage tank, the drying device and the condenser are communicated with the condensed water storage tank, and the condensed water storage tank is connected with the incineration system through a high-pressure pump.
The pretreatment system also comprises an adjusting tank, the air flotation tank is communicated with the adjusting tank through a water pump, and the adjusting tank is communicated with the preheater through a water pump.
The collecting tank, the air flotation tank and the concentrated solution tank are all connected with an oil recovery device, and the oil recovery device is connected with a waste oil storage tank through a pipeline.
The drying equipment is a low-temperature evaporation crystallizer.
The incineration system comprises a quench tower, a primary wet deacidification tower and a secondary wet deacidification tower.
The utility model has the advantages that: the method comprises the steps of firstly recovering floating oil in waste emulsion through a pretreatment system, enabling the waste emulsion to enter a concentrated solution tank for standing after the waste emulsion is evaporated and concentrated to a certain proportion, then processing the waste emulsion through drying equipment, enabling the emulsion to be finally and completely converted into solid residues to form sludge, introducing water vapor into a burning system after passing through a condensation system, and replacing fresh water to be used as cooling water to carry out system cooling, so that the effects of zero discharge of waste water and fresh water saving are achieved.
Drawings
Fig. 1 is a flow chart of the present invention.
Detailed Description
As shown in fig. 1, a waste emulsion treatment system comprises a pretreatment system, an evaporation system, a concentrated solution treatment system and a condensed water treatment system, wherein the pretreatment system comprises a collection tank which is connected with an air flotation tank through a pipeline; the evaporation system comprises a preheater, the air floatation tank is communicated with the preheater through a water pump, the preheater is communicated with an evaporator through the water pump, the evaporator enables emulsion to be in forced circulation through a circulating pump, a silk screen demister is arranged at the upper part of the evaporator, and a pipeline of the evaporator is connected with a condenser; the concentrated solution treatment system comprises a concentrated solution tank and drying equipment, wherein a circulating pump is communicated with the concentrated solution tank through a pipeline, and the concentrated solution tank is communicated with the drying equipment through a water pump; the condensed water disposal system comprises a condensed water storage tank, the drying device and the condenser are communicated with the condensed water storage tank, and the condensed water storage tank is connected with the incineration system through a high-pressure pump.
The waste emulsion is filtered and pumped into a collecting tank, and the collecting tank has the main function of collecting and storing the waste emulsion, so that good water inlet conditions are created for subsequent treatment and the waste emulsion is not influenced by the state change of components of the waste water. The collecting tank is connected with an oil collector, and floating oil which is layered in the waste emulsion is collected into the waste oil storage tank.
The waste emulsion is conveyed to the air floatation tank from the collecting tank through a water pump, and tiny suspended matters and bubbles are mutually adhered and removed in the air floatation tank through aeration so as to meet the treatment requirement of a subsequent evaporation system. An oil collector is also arranged in the floatation tank, and the floating oil which is obtained by removing the fine suspended matters and then demixing the waste emulsion is collected to a waste oil storage tank.
Further, according to the composition of useless emulsion, pretreatment systems still includes the equalizing basin, and useless emulsion gets into the equalizing basin earlier before coming out the entering pre-heater from the air supporting pond, and the main operation of useless emulsion in the equalizing basin is according to the pH value of useless emulsion, adds sour/alkali/defoaming agent and adjusts to the condition that can not appear bumping or the more material that leads to running of bubbling when guarantee useless emulsion gets into the evaporimeter evaporation.
Waste emulsion is from air supporting pond or equalizing basin in by the pump sending to the pre-heater, carries out preliminary intensification with waste emulsion through steam in the pre-heater, and waste emulsion after preliminary intensification passes through in pipeline export pump sending to the evaporimeter. The steam used in the preheater is the hot steam generated by an incinerator in a plant area for secondary utilization.
Forced circulation flows between the inlet of evaporimeter and the liquid outlet with useless emulsion through the circulating pump, ensure that the useless emulsion in the evaporimeter is in the state of flowing, with impurity or the colloid that appear in the evaporation concentration in-process condense on the evaporimeter inner wall, this kind of foreign particles condenses the back in evaporimeter inner wall and tubulation, probably cause useless emulsion to bump, make useless emulsion splash into the condenser, pollute the condensation effluent, also can block up the tubulation in the evaporimeter, cause the tubulation jam in the evaporimeter, reduce evaporation efficiency or make the evaporimeter jam shutdown. The upper part of the evaporator is provided with a wire mesh demister, and the wire mesh demister enables gas to smoothly pass through a wire pad of the demister and removes entrained mist; the wire mesh demister has the characteristics of uniform aperture, simple structure, long service life and the like, and the structure of the condenser meets the requirement of quick replacement. After the waste emulsion in the evaporator is heated by saturated steam, a large amount of evaporated water vapor naturally rises and then enters a condenser for condensation, and the generated condensed water is collected and enters a condensed water storage tank. And part of insoluble tail gas is carried in the water vapor and is discharged after reaching the standard through VOCs tail gas treatment.
The drying equipment is a low-temperature evaporation crystallizer. And the waste emulsion is evaporated in the evaporator until about 15% of the residual concentrated solution is obtained, and then is led out to a concentrated solution tank through a circulating pump. The thick liquid pond is connected and is received the oil ware, and the useless emulsion is after the thick liquid pond layering of stewing, uses and receives the oil ware and continues to collect the upper oil slick to the waste oil storage tank, and the bottom material uses the sludge pump to go into low temperature evaporation crystallization equipment and carries out the evaporation crystallization, makes the thick liquid evaporate to form mud after nearly doing, discharges into the waste material groove and collects and deals with, and vapor is through the low temperature evaporation crystallizer condensation, forms the comdenstion water and converges into the comdenstion water storage tank.
The utility model discloses in use basket filter to filter when the collection tank of mill is gone into to the useless emulsion pump that comes from each place collection, detach jumbo size and the great size impurity in the useless emulsion, prevent to block up the water pump, follow-up technology gets into jar pond containers such as air supporting pond, equalizing basin from the collection tank, and the pre-heater, when handling the setting such as evaporimeter, need not pass through extra filtration, various filtration equipment such as conventional security filter, ultrafiltration apparatus, nanofiltration device have been left out, simple process.
The condensed water collected in the condensed water storage tank can be used in an incineration system to replace fresh water, thereby achieving zero discharge of waste water and saving water resources. The incineration system comprises a quench tower, a primary wet deacidification tower and a secondary wet deacidification tower.
The oil collector collects oil in the collecting tank, the air flotation tank and the concentrated liquid tank, and stores the oil in the waste oil storage tank, so that the oil collector can be used in an incinerator to replace diesel oil.
Others refer to the prior art for a detailed disclosure.
The utility model discloses earlier retrieve through the oil slick in the pretreatment systems with waste emulsion, waste emulsion is through preheating, entering the thick liquid pond after evaporator evaporation concentration reaches the certain proportion and stews, and back is handled through the mummification equipment, makes the final whole solid residue that turn into of emulsion form mud, and steam lets in the system of burning behind the condensing system, and the comdenstion water of output replaces the fresh water to carry out the system cooling as the cooling water in the waste emulsion to reach the waste water zero release, practice thrift the effect of fresh water. The recovered floating oil is stored in a waste oil storage tank and can be used in an incinerator to replace diesel oil. Various filtering devices are omitted in the whole waste emulsion treatment system, and the process flow is simplified.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the general inventive concept, and it is intended to cover all such changes and modifications as fall within the true spirit and scope of the invention.
Claims (5)
1. The utility model provides a useless emulsion processing system which characterized in that: the device comprises a pretreatment system, an evaporation system, a concentrated solution treatment system and a condensed water treatment system, wherein the pretreatment system comprises a collection tank which is connected with an air floatation tank through a pipeline;
the evaporation system comprises a preheater, the air floatation tank is communicated with the preheater through a water pump, the preheater is communicated with an evaporator through the water pump, the evaporator enables emulsion to be in forced circulation through a circulating pump, a silk screen demister is arranged at the upper part of the evaporator, and a pipeline of the evaporator is connected with a condenser;
the concentrated solution treatment system comprises a concentrated solution tank and a drying device, wherein a circulating pump is communicated with the concentrated solution tank through a pipeline, and the concentrated solution tank is communicated with the drying device through a water pump;
the condensed water disposal system comprises a condensed water storage tank, the drying device and the condenser are communicated with the condensed water storage tank, and the condensed water storage tank is connected with the incineration system through a high-pressure pump.
2. The waste emulsion processing system of claim 1, wherein: the pretreatment system also comprises an adjusting tank, the air floatation tank is communicated with the adjusting tank through a water pump, and the adjusting tank is communicated with the preheater through the water pump.
3. The waste emulsion treatment system of claim 1, wherein: the collecting tank, the air flotation tank and the concentrated liquid tank are all connected with an oil collector, and the oil collector is connected with a waste oil storage tank through a pipeline.
4. The waste emulsion processing system of claim 1, wherein: the drying equipment is a low-temperature evaporation crystallizer.
5. The waste emulsion processing system of claim 1, wherein: the incineration system comprises a quench tower, a primary wet deacidification tower and a secondary wet deacidification tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222758222.2U CN218811125U (en) | 2022-10-20 | 2022-10-20 | Waste emulsion treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222758222.2U CN218811125U (en) | 2022-10-20 | 2022-10-20 | Waste emulsion treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218811125U true CN218811125U (en) | 2023-04-07 |
Family
ID=87255683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222758222.2U Active CN218811125U (en) | 2022-10-20 | 2022-10-20 | Waste emulsion treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218811125U (en) |
-
2022
- 2022-10-20 CN CN202222758222.2U patent/CN218811125U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2018045707A1 (en) | Water treatment device and method using waste heat from power plant | |
| CN110028186B (en) | High-efficiency treatment process for high-concentration emulsion | |
| CN104108822B (en) | Useless oil emulsion cryogenic separation system | |
| CN203877994U (en) | Waste cutting fluid separation and recovery system | |
| CN105330110A (en) | Direct coal liquefaction sewage treatment system and method | |
| CN109020031B (en) | Evaporation concentration system based on thermal compression | |
| CN106186200A (en) | A kind of indirect air cooling unit recuperation of heat and water treatment facilities and method | |
| CN110028201A (en) | A kind of waste emulsified mixture resource utilization processing system and technique | |
| KR20200055191A (en) | Non-discharge wastewater treatment using multi-step vacuum decompression evaporation concentration of high concentration wastewater | |
| CN104291548A (en) | Treating method for biochemical sludge and treating device for biochemical sludge | |
| CN111499069A (en) | Comprehensive treatment system and treatment method for waste cutting fluid | |
| CN218811125U (en) | Waste emulsion treatment system | |
| CN107902829B (en) | Cold rolling oil-containing and emulsion wastewater recycling process and device thereof | |
| CN209815882U (en) | Water-based cutting fluid treatment and recycling system | |
| CN115893559A (en) | Desulfurization wastewater zero-discharge system and desulfurization wastewater zero-discharge process | |
| CN215250211U (en) | Waste water treatment device | |
| CN213739063U (en) | Waste incineration power plant leachate treatment terminal wastewater resource utilization system | |
| CN111499070A (en) | Oil-containing emulsified waste liquid reduction treatment system and treatment method thereof | |
| CN111690976B (en) | Electroplating bath liquid management, concentration and reuse process | |
| CN212269759U (en) | Oily emulsification waste liquid treatment device | |
| CN213141738U (en) | Washing waste liquid and waste emulsion treatment and recycling system | |
| CN208865357U (en) | A kind of desorption tail gas cleaning treatment system of indirect thermal containing mercury contaminated soil | |
| CN220907310U (en) | Emulsion liquid film concentration evaporation disposal system | |
| CN205347060U (en) | Die -casting waste liquid recycles system | |
| CN219058765U (en) | Phenol-containing wastewater treatment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |