CN101486497B - Apparatus and method for recycling electric spark waste liquor by pressure extraction - Google Patents
Apparatus and method for recycling electric spark waste liquor by pressure extraction Download PDFInfo
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- CN101486497B CN101486497B CN2009100142035A CN200910014203A CN101486497B CN 101486497 B CN101486497 B CN 101486497B CN 2009100142035 A CN2009100142035 A CN 2009100142035A CN 200910014203 A CN200910014203 A CN 200910014203A CN 101486497 B CN101486497 B CN 101486497B
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Abstract
The invention relates to a device and a method thereof for recycling waste liquid produced in the electric spark machining field; the device comprises a waste-liquid storage tank, an evaporator, a cooling device, a fluid reserving tank, a vacuum pump, connecting pipelines and valves; an electric heater is arranged on the wall of a tank body at the lower part of the evaporator; and an insulation layer is wrapped on the exterior wall of the tank body. The method essentially comprises the following steps: materials are fed under negative pressure; in the situation that the pressure of the evaporator is lower than minus 0.098MPa, a blender and the electric heater of the evaporator are started up to rise the temperature to 40 DEG C for thermal insulation and dehydration; and after the dehydration process is finished, solid-liquid separation is carried out under negative pressure and high temperature. The device and the method can properly solve the separation problem of electric spark liquid and polymer, cause the electric spark liquid recovery rate to be higher than 98 percent, keep the original performance of the electric spark liquid, effectively utilize final emissions and has positive significant in terms of ensuring the safety of the production and reducing the machining costs and environmental pollution caused by waste liquid.
Description
Technical field
The present invention relates to produce in the electric spark machining field recycle device and the method for waste liquid.
Background technology
In edm process, because electrode is discharge repeatedly in electrical spark liquid, the high temperature of electric arc makes electrical spark liquid produce polyreaction under high temperature anoxybiotic state, generate a large amount of high molecular polymer (carbon black) and other derivative, this polymkeric substance is suspended state and is free in the electrical spark liquid, and growing amount and being directly proportional process period.Continue the increase gradually of polymkeric substance along with process period, make the physics and the chemical property of electrical spark liquid that very big change take place, change black liquor into by colourless transparent liquid, viscosity also increases gradually, when polymkeric substance reaches a certain amount of, because the course of discharge of the electroconductibility interfere with electrode of polymkeric substance, have a strong impact on the geometrical shape and the processing quality of workpiece.The electrical spark liquid of post precipitation is color shape semi-fluid condition darkly, contains electrical spark liquid more than 90%, because the granularity of polymkeric substance is very thin, and it is flexible, form tight blocking layer on filtering surface, liquid is difficult to pass through, and is difficult to separate with common filtration, press filtration, centrifugal method.
Summary of the invention
The present invention is exactly at the existing in prior technology problem, provides a kind of convenience, efficient, the device and method of the recycling electric spark waste liquor by pressure extraction that recovery utilization rate is high.
Technical scheme of the present invention comprises:
A kind of device of recycling electric spark waste liquor by pressure extraction, comprise waste liquid storage tank, vaporizer, water cooler, container for storing liquid, vacuum pump and connection line, valve, vaporizer wherein comprises in the airtight tank body of bottom cone, the motor that places the tank body top and the tank body feed inlet and outlet, the emptying mouth of pipe and the thermometric instrument with the discharge gate of the mixing assembly of motor connecting shaft, cone base and valve, tank body top.On the tank wall of the bottom of vaporizer, electric heater is set, outer wall at tank body is enclosed with thermal insulation layer, the opening for feed of vaporizer is connected to the waste liquid storage tank by pipeline and valve, the discharge port of vaporizer is linked into container for storing liquid after being connected to water cooler and valve by pipeline, vacuum pump directly is linked on the container for storing liquid by valve and pipeline, and being provided with exhaust-valve and manometer on container for storing liquid top, the bottom is provided with oil exit pipe and valve.On the discharging pipeline of vaporizer, the observation visor is set.
The method of the recycling electric spark waste liquor by pressure extraction that proposes according to said apparatus is: at first, open the valve between the discharge nozzle of vaporizer and water cooler, container for storing liquid, the vacuum pump, close other valve, start vacuum pump, make vaporizer, container for storing liquid remain on negative pressure state; The second, open the pipeline valve that is linked at vaporizer and waste liquid storage tank, waste liquid is closed the charging valve after entering vaporizer; The 3rd, be lower than at evaporator pressure-situation of 0.098MPa under, start the agitator and the electric heater of vaporizer, insulation dehydration after temperature rises to 40 ℃ is till the moisture content in waste liquid all enters container for storing liquid by discharge port and condenser; The 4th, after dehydration is finished, close the valve between vacuum pump and condenser and the container for storing liquid, the exhaust-valve of opening container for storing liquid reverts to atmospheric pressure state to container for storing liquid, opens the dispensing valve of container for storing liquid, and water is emitted the back and closed this valve; The 5th, open the valve between condenser and vacuum pump and the container for storing liquid once more, close the exhaust-valve of container for storing liquid, start vacuum pump, the temperature of vaporizer is continued to be warming up to 128 ℃, by observing visor, when flow obviously reduces, close agitator and electric heater, when the observation visor does not have effluent, close the valve between condenser and the container for storing liquid, close water coolant and vacuum pump, and container for storing liquid is set to atmospheric pressure state once more.
When actuator temperature to be evaporated dropped to 80 ℃, it was set to atmospheric pressure state, started agitator, opened the drain hole valve, under whipped state the powder material in the jar was discharged.An amount of yellow mud and water in the powder material of discharging is made the base shape after mixing and stirring, act as a fuel behind the airing.
The present invention solves the separation problem of electrical spark liquid and polymkeric substance well, the electrical spark liquid rate of recovery is reached more than 98%, and original performance of maintenance electrical spark liquid, and final discharge also is utilized effectively, be the security that guarantees to produce, cut down finished cost, the environmental pollution that reduces waste liquid all has positive meaning.
Description of drawings
Accompanying drawing is a kind of structural representation of specific embodiment.1 is the waste liquid storage tank among the figure, the 2nd, and vaporizer, the 3rd, water cooler, the 4th, container for storing liquid, the 5th, vacuum pump, the 6th, finished product test tank, the 7th, powder material discharging tank, the 8th, exhaust-valve (pipe), the 9th, motor and agitator assembly, 10 thermal insulation layers, the 11st, electric heater, and the connection line, the valve that do not mark.
Embodiment
Embodiment 2, on the basis of embodiment 1, are provided with on the discharging pipeline of vaporizer and observe visor (being equal to transparent window is convenient to observe), can certainly adopt other such as sample examination analysis or detected electronically analysis.Can also increase off-set facility such as finished product test tank 6 and powder material discharging tank 7.
Embodiment 3, around the method for above-mentioned two kinds of devices are: at first, the valve between the discharge nozzle of opening vaporizer and water cooler, container for storing liquid, the vacuum pump is closed other valve, and the startup vacuum pump makes vaporizer, container for storing liquid remain on negative pressure state; The second, open the pipeline valve that is linked at vaporizer and waste liquid storage tank, waste liquid is closed the charging valve after entering vaporizer; The 3rd, be lower than at evaporator pressure-situation of 0.098MPa under, start the agitator and the electric heater of vaporizer, insulation dehydration after temperature rises to 40 ℃ is till the moisture content in waste liquid all enters container for storing liquid by discharge port and condenser; The 4th, after dehydration is finished, close the valve between vacuum pump and condenser and the container for storing liquid, the exhaust-valve of opening container for storing liquid reverts to atmospheric pressure state to container for storing liquid, opens the dispensing valve of container for storing liquid, and water is emitted the back and closed this valve; The 5th, open the valve between condenser and vacuum pump and the container for storing liquid once more, close the exhaust-valve of container for storing liquid, start vacuum pump, the temperature of vaporizer is continued to be warming up to 128 ℃, by observing visor, when flow obviously reduces, close agitator and electric heater, when the observation visor does not have effluent, close the valve between condenser and the container for storing liquid, close water coolant and vacuum pump, and container for storing liquid is set to atmospheric pressure state once more.
Embodiment 4, and on the basis of embodiment 3, when container for storing liquid electrical spark liquid obtained reclaiming, when actuator temperature to be evaporated dropped to 80 ℃, it was set to atmospheric pressure state, started agitator, opened the drain hole valve, under whipped state the powder material in the jar was discharged.An amount of yellow mud and water in the powder material of discharging is made the base shape after mixing and stirring, act as a fuel behind the airing.
The production equipment scale of the foregoing description can specific design be:
(1) electrically heated evaporating pot 600-800L (2) condenser (cooling area 2m
2)
(3) container for storing liquid 1600-2000L (4) vacuum pump (30L/inm)
Claims (4)
1. the device of a recycling electric spark waste liquor by pressure extraction, comprise the waste liquid storage tank, vaporizer, water cooler, container for storing liquid, vacuum pump and connection line, valve, vaporizer wherein comprises the airtight tank body of bottom cone, place in the motor at tank body top and the tank body mixing assembly with the motor connecting shaft, the discharge gate of cone base and valve, the feed inlet and outlet at tank body top, the emptying mouth of pipe and thermometric instrument, it is characterized in that: on the tank wall of the bottom of vaporizer, electric heater is set, outer wall at tank body is enclosed with thermal insulation layer, the opening for feed of vaporizer is connected to the waste liquid storage tank by pipeline and valve, the discharge port of vaporizer is linked into container for storing liquid after being connected to water cooler and valve by pipeline, vacuum pump directly is linked on the container for storing liquid by valve and pipeline, and being provided with exhaust-valve and manometer on container for storing liquid top, the bottom is provided with oil exit pipe and valve.
2. the device of recycling electric spark waste liquor by pressure extraction according to claim 1 is characterized in that: on the discharging pipeline of vaporizer the observation visor is set.
3. the device of a recycling electric spark waste liquor by pressure extraction according to claim 2 and the method for the recycling electric spark waste liquor by pressure extraction that proposes, it is characterized in that: at first, open the valve between the discharge nozzle of vaporizer and water cooler, container for storing liquid, the vacuum pump, close other valve, start vacuum pump, make vaporizer, container for storing liquid remain on negative pressure state; The second, open the pipeline valve that is linked at vaporizer and waste liquid storage tank, waste liquid is closed the charging valve after entering vaporizer; The 3rd, be lower than at evaporator pressure-situation of 0.098MPa under, start the agitator and the electric heater of vaporizer, insulation dehydration after temperature rises to 40 ℃ is till the moisture content in waste liquid all enters container for storing liquid by discharge port and condenser; The 4th, after dehydration is finished, close the valve between vacuum pump and condenser and the container for storing liquid, the exhaust-valve of opening container for storing liquid reverts to atmospheric pressure state to container for storing liquid, opens the dispensing valve of container for storing liquid, and water is emitted the back and closed this valve; The 5th, open the valve between condenser and vacuum pump and the container for storing liquid once more, close the exhaust-valve of container for storing liquid, start vacuum pump, the temperature of vaporizer is continued to be warming up to 128 ℃, by observing visor, when flow obviously reduces, close agitator and electric heater, when the observation visor does not have effluent, close the valve between condenser and the container for storing liquid, close water coolant and vacuum pump, and container for storing liquid is set to atmospheric pressure state once more.
4. the method for recycling electric spark waste liquor by pressure extraction according to claim 3, it is characterized in that: after evaporator temperature dropped to 80 ℃, it was set to atmospheric pressure state, started agitator, open the drain hole valve, under whipped state, the powder material in the jar is discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100142035A CN101486497B (en) | 2009-02-10 | 2009-02-10 | Apparatus and method for recycling electric spark waste liquor by pressure extraction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100142035A CN101486497B (en) | 2009-02-10 | 2009-02-10 | Apparatus and method for recycling electric spark waste liquor by pressure extraction |
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| CN101486497A CN101486497A (en) | 2009-07-22 |
| CN101486497B true CN101486497B (en) | 2010-12-29 |
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| CN111620395A (en) * | 2020-04-14 | 2020-09-04 | 上海问鼎环保科技有限公司 | High-concentration waste liquid evaporator and waste liquid treatment method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1807266A (en) * | 2006-02-17 | 2006-07-26 | 河南安彩高科股份有限公司 | Electroplating effluent treatment method |
| CN101033086A (en) * | 2006-03-01 | 2007-09-12 | 栗田工业株式会社 | Method of treating discharging liquid of metal dissolved acid |
| CN101298636A (en) * | 2008-06-19 | 2008-11-05 | 广东世创金属科技有限公司 | Heat treatment spent liquor salt recovery processing method and apparatus |
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2009
- 2009-02-10 CN CN2009100142035A patent/CN101486497B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1807266A (en) * | 2006-02-17 | 2006-07-26 | 河南安彩高科股份有限公司 | Electroplating effluent treatment method |
| CN101033086A (en) * | 2006-03-01 | 2007-09-12 | 栗田工业株式会社 | Method of treating discharging liquid of metal dissolved acid |
| CN101298636A (en) * | 2008-06-19 | 2008-11-05 | 广东世创金属科技有限公司 | Heat treatment spent liquor salt recovery processing method and apparatus |
Non-Patent Citations (1)
| Title |
|---|
| JP昭53-95874 1978.08.22 |
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Granted publication date: 20101229 Termination date: 20160210 |