CN205347049U - Chemical water treatment device of thermal power factory - Google Patents
Chemical water treatment device of thermal power factory Download PDFInfo
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- CN205347049U CN205347049U CN201620148976.8U CN201620148976U CN205347049U CN 205347049 U CN205347049 U CN 205347049U CN 201620148976 U CN201620148976 U CN 201620148976U CN 205347049 U CN205347049 U CN 205347049U
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Abstract
The utility model discloses a chemical water treatment device of thermal power factory, including removing turbid device and desalination device, go turbid device to include many filter medium filtration device, active carbon filter equipment, ultrafiltration device, set up the filter material layer in many filter medium filtration device, the filter material layer comprises with thin filtering layer coarse filter layer, filter body sets up backwash inlet tube, backwash intake pipe and backwash outlet pipe, thin filtering layer comprises first quartzy sand bed, the quartzy sand bed of second, still including transversely running through the helicitic texture of coarse filter layer, first quartzy sand bed, the quartzy sand bed of second, the desalination device includes except that the carbon ware, it sets up muddy bed, desalting water tank, oxygen -eliminating device and tank to remove the carbon ware. The utility model has the advantages of not only go out water purity high, go out water stabilization of water quality, high to former water use rate, add the ammonia solution to the desalting water tank in simultaneously, prepare into qualified boiler feedwater, avoided former ammonia volume to neglect the little phenomenon of allium fistulosum.
Description
Technical field
This utility model relates generally to chemical water treatment of thermal power plant field, specifically the Water Treatment device in a kind of thermal power plant.
Background technology
The Water Treatment of power plant is primarily referred to as the Water purification of boiler feed water, boiler feed water is carried out good purified treatment and just can prevent the fouling of heat power equipment, corrosion, avoid pipe explosion accident, effectively prevent the salification of superheater and steam turbine, the quality of this process be directly connected to relevant device whether can safety and economic operation, the Water purification of boiler feed water can run into some problems:
1, need to use more medium filter that former water is filtered in the Water purification of boiler feed water, utilize the float in the gap trap water between anthracite, quartz sand, after more medium filter runs a period of time, namely filter can be suspended fouling, need to use it to produce water backwashing and could recover the function of more medium filter, this backwashing manner can waste substantial amounts of product water, makes the operating cost of equipment raise.
2, demineralized water is carried out ammonification, improve feedwater pH, it is prevented that free property CO2Steam boiler is carried out sour corrosion, but feedwater ammonia residual is required very strict by steam boiler, and this ammonification mode extremely unstable, it is easy to when causing steam boiler to need a large amount of moisturizing, demineralized water ammon amount is too small, and during a small amount of moisturizing, ammon amount is excessive.
Utility model content
For solving deficiency of the prior art, this utility model provides the Water Treatment device in a kind of thermal power plant, not only water outlet purity is high, stable effluent quality, former water use efficiency is high, ammonia solution is added to sweet-water tank simultaneously, it is configured to qualified boiler feedwater, it is to avoid former ammonia amount suddenly big or suddenly small phenomenon.
This utility model for achieving the above object, is achieved through the following technical solutions:
A kind of Water Treatment device in thermal power plant, including removing turbid device and demineralizer, described turbid device is gone to include the multi-medium filtering device being sequentially connected with along water (flow) direction, active carbon filtering device, ultrafiltration apparatus, described multi-medium filtering device includes filter body, in described filter body, supporting plate is set, described supporting plate arranges filter material layer, described filter material layer is made up of the coarse filtration layer on upper strata and the fine filtering layer of lower floor, the top of described filter body arranges water inlet pipe, the bottom of described filter body arranges outlet pipe, described outlet pipe arranges turbidity detector and the first electromagnetic valve, the top of described coarse filtration layer arranges arc groove, the bottom of described filter body arranges backwash water inlet pipe, backwash air inlet pipe and backwash outlet pipe, described backwash outlet pipe upwardly extends and runs through filter material layer, described backwash outlet pipe arranges the second electromagnetic valve, described fine filtering layer is by the first quartz sand layer of two-layer different-grain diameter, second quartz sand layer is constituted, described coarse filtration layer, first quartz sand layer, it is respectively provided with in second quartz sand layer and extends transversely through coarse filtration layer, first quartz sand layer, the helicitic texture of the second quartz sand layer, described helicitic texture includes threaded rod and cylinder, described coarse filtration layer, first quartz sand layer, the screwed hole matched with threaded rod it is respectively provided with in second quartz sand layer, the sidewall of filter body is stretched out at the two ends of described threaded rod, connecting rod on described cylinder is rotating with one end of threaded rod to be connected, described cylinder drives threaded rod at described coarse filtration layer, first quartz sand layer, transverse shifting in second quartz sand layer；
Described demineralizer includes carbon dioxide cleaner, and described carbon dioxide cleaner connects with ultrafiltration apparatus, and described carbon dioxide cleaner arranges the mixed bed, sweet-water tank, oxygen-eliminating device and the tank that are sequentially connected with along water (flow) direction.
Being additionally provided with ammonification pipeline on the outlet pipe of described mixed bed, ammonification pipeline connects with the ammonia batch meter storing ammonia solution.
The outlet of described oxygen-eliminating device is connected with tank by inlet pipeline, and described inlet pipeline arranges water-water jet, and described water-water jet connects with ammonia batch meter, and described water-water jet arranges pH sampling line, and described pH sampling line is provided with pH meter.
The outlet position of described sweet-water tank is provided with the demineralized water sampling line towards chemical laboratory, and described demineralized water sampling line is provided with sampling valve.
The outlet pipe of described mixed bed is provided with resin catcher and non-return valve.
Also including waste liquid tank, described ultrafiltration apparatus arranges sewer pipe, described sewer pipe, backwash outlet pipe connect with waste liquid tank.
Contrast and prior art, this utility model has the beneficial effects that:
1, this utility model includes turbid device and demineralizer, the disturbance by helicitic texture of the filtering layer of filter body, be conducive to the space expanding between granule when backwash, promote that the current that filtering layer inner suspension thing is rinsed are taken away, increase the filter effect of multi-medium filtering device, being conducive to the carrying out that postorder processes, water outlet purity is high, stable effluent quality, and former water use efficiency is high.
2, ammonia solution is added in sweet-water tank, being configured to qualified boiler feedwater by this utility model, it is to avoid the suddenly big or suddenly small phenomenon of ammonia amount in product water.
3, this utility model water-water jet connects and arranges pH sampling line with ammonia batch meter, monitors ammon amount and the pH value of demineralized water real-time, easily, reduces the sour corrosion of conveyance conduit and steam boiler equipment, extends the service life of steam boiler.
4, the outlet position of this utility model sweet-water tank is provided with the demineralized water sampling line towards chemical laboratory and is conducive to monitoring in real time the water quality of demineralized water, better controls water outlet purity.
5, this utility model mixed bed outlet pipe is provided with resin catcher and non-return valve, the resin in water is caught and prevents ammonification demineralized water from flowing backwards.
6, this utility model sewer pipe, backwash outlet pipe connect with waste liquid tank, and the waste liquid after ultrafiltration apparatus and demineralizer process is collected.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model；
Accompanying drawing 2 is the structural representation of multi-medium filtering device.
Label shown in accompanying drawing: 1, multi-medium filtering device；10, tank；11, supporting plate；12, water inlet pipe；13, outlet pipe；14, turbidity detector；15, the first electromagnetic valve；16, backwash water inlet pipe；17, backwash air inlet pipe；18, backwash outlet pipe；19, the second electromagnetic valve；2, active carbon filtering device；3, ultrafiltration apparatus；31, waste liquid tank；32, sewer pipe；4, coarse filtration layer；41, arc groove；42, threaded rod；43, cylinder；5, fine filtering layer；51, the first quartz sand layer；52, the second quartz sand layer；6, carbon dioxide cleaner；7, mixed bed；71, ammonification pipeline；72, ammonia batch meter；73, resin catcher；74, non-return valve；8, sweet-water tank；81, demineralized water sampling line；9, oxygen-eliminating device；91, water-water jet；92, pH sampling line；93, pH meter.
Detailed description of the invention
In conjunction with the drawings and specific embodiments, the utility model is described in further detail.Should be understood that these embodiments are merely to illustrate this utility model rather than limit scope of the present utility model.In addition, it is to be understood that after having read the content that this utility model is lectured, this utility model can be made various changes or modifications by those skilled in the art, and these equivalent form of values fall within the application appended claims limited range equally.
A kind of Water Treatment device in thermal power plant, including removing turbid device and demineralizer, the integrated structure of this device, integrate filtration, desalination, volume is little.Described going turbid device to include the multi-medium filtering device 1 being sequentially connected with along water (flow) direction, multi-medium filtering is used for removing float and part colloid or iron ion etc.；Active carbon filtering device 2, activated carbon can be used to organics removal, colloid, too much chlorine residue etc.；Ultrafiltration apparatus 3, ultrafiltration can be used to remove most oil removal (silt particle/rust etc.), colloid (material that mainly particle diameter is less), partial organic substances etc., go turbid device can reach fabulous filter effect, described multi-medium filtering device 1 includes filter body, supporting plate 11 is set in described filter body, described supporting plate 11 arranges filter material layer, described filter material layer is made up of the coarse filtration layer 4 on upper strata and the fine filtering layer 5 of lower floor, coarse filtration layer 4 is excellent in anthracite filter course, specific surface area is big, energy of adsorption is high, to float advantages of good adsorption effect, filtration resistance is little, in general alkalescence, neutral all insoluble with in acid water, mechanical strength is also better.The top of described filter body arranges water inlet pipe 12, the bottom of described filter body arranges outlet pipe 13, described outlet pipe 13 arranges turbidity detector 14 and the first electromagnetic valve 15, the top of described coarse filtration layer 4 arranges arc groove 41, the bottom of described filter body arranges backwash water inlet pipe 16, backwash air inlet pipe 17 and backwash outlet pipe 18, described backwash outlet pipe 18 upwardly extends and runs through filter material layer, described backwash outlet pipe 18 arranges the second electromagnetic valve 19, when turbidity detector 14 detects that delivery turbidity exceedes predetermined standard time and passes data to background server, background server controls the first electromagnetic valve 15 and closes, second electromagnetic valve 19 is opened, start backwash, during backwash, backwash water is flowed up through filter material layer by supporting plate 11, float on filter material layer is taken away, the top of coarse filtration layer 4 arranges arc groove 41, the bottom of backwash water automatic stream groove is flowed away by backwash outlet pipe 18, for reaching better backwash effect, avoid hardening the generation of problem, improve the cycle of operation of device, the counter-flushing process preferably employed is: 3-5min is washed in advanced circulation of qi promoting, then carry out gas-vapor mix and wash 8-10min, finally wash 8-10min, washing intensity is 8-10m3/m2.h, air purge pressure 0.07MPa.Described fine filtering layer 5 is made up of first quartz sand layer the 51, second quartz sand layer 52 of two-layer different-grain diameter, and the hole between the anthracite granule of upper strata is relatively big, and in water, float is except being adsorbed by anthracite, it is also possible to enter lower floor's quartz sand filtering layer.Thus give full play to the retaining power of filtrate, made resistance to water-flow increase relatively slow, extend cycle of operation.Fine filtering layer 5 is constituted as well by the quartz sand layer of two-layer different-grain diameter, by the quartz sand layer of different gradation, can well float in trap water and part colloid or iron ion etc., the thickness simultaneously controlling each layer also reduces the height of tank body while ensureing filter effect, decreases the investment of equipment.Described coarse filtration layer 4, first quartz sand layer 51, it is respectively provided with in second quartz sand layer 52 and extends transversely through described coarse filtration layer 4, first quartz sand layer 51, the helicitic texture of the second quartz sand layer 52, described helicitic texture includes threaded rod 42 and cylinder 43, described coarse filtration layer 4, first quartz sand layer 51, the screwed hole matched with threaded rod 42 it is respectively provided with in second quartz sand layer 52, the sidewall of described filter body is stretched out at the two ends of described threaded rod 42, connecting rod on described cylinder 43 is rotating with one end of threaded rod 42 to be connected, described cylinder 43 drives described threaded rod 42 at coarse filtration layer 4, first quartz sand layer 51, transverse shifting in second quartz sand layer 52, by the disturbance of helicitic texture, be conducive to the space expanding between granule when backwash, promote that the current that filtering layer inner suspension thing is rinsed are taken away, increase the filter effect of multi-medium filtering device 1.
Described demineralizer includes carbon dioxide cleaner 6, described carbon dioxide cleaner 6 connects with ultrafiltration apparatus 3, described carbon dioxide cleaner 6 sets gradually the mixed bed 7 of connection, sweet-water tank 8, oxygen-eliminating device 9 and tank 10 along water (flow) direction, efficiently former water can be carried out advanced desalination, prevent the fouling of heat power equipment, corrosion, avoiding pipe explosion accident, effectively prevent the salification of superheater and steam turbine, this system equipment floor space is little, non-pollutant discharge, operation is simple to operate, be easily maintained.
In order to avoid the suddenly big or suddenly small phenomenon of ammonia amount in product water, the outlet pipeline 13 of described mixed bed 7 being additionally provided with ammonification pipeline 71, ammonification pipeline 71 connects with the ammonia batch meter 72 storing ammonia solution, carries out uniform ammonification to producing water.
In order to real-time, monitor ammon amount and the pH value of demineralized water easily, reduce the sour corrosion of conveyance conduit and steam boiler equipment, extend the service life of steam boiler, the outlet of described oxygen-eliminating device 9 is connected with tank 10 by inlet pipeline, described inlet pipeline arranges water-water jet 91, described water-water jet 91 connects with ammonia batch meter 72, and described water-water jet 91 arranges pH sampling line 92, and described pH sampling line 92 is provided with pH meter 93.
In order to better control water outlet purity, the outlet position of described sweet-water tank 8 is provided with the demineralized water sampling line 81 towards chemical laboratory, and described sampling line is provided with sampling valve, monitors the water quality of demineralized water in real time.
In order to the resin in water being caught and preventing ammonification demineralized water from flowing backwards, described mixed bed 7 outlet pipe 13 is provided with resin catcher 73 and non-return valve 74.
In order to the waste liquid after ultrafiltration apparatus 3 and demineralizer process is collected, the Water Treatment device in thermal power plant also includes waste liquid tank 31, and described ultrafiltration apparatus 3 arranges sewer pipe 32, and described sewer pipe 32, backwash outlet pipe 18 connect with waste liquid tank 31.
Embodiment:
A kind of Water Treatment device in thermal power plant, including removing turbid device and demineralizer, the integrated structure of this device, integrate filtration, desalination, volume is little.Described going turbid device to include the multi-medium filtering device 1 being sequentially connected with along water (flow) direction, multi-medium filtering is used for removing float and part colloid or iron ion etc.；Active carbon filtering device 2, activated carbon can be used to organics removal, colloid, too much chlorine residue etc.；Ultrafiltration apparatus 3, ultrafiltration can be used to remove most oil removal (silt particle/rust etc.), colloid (material that mainly particle diameter is less), partial organic substances etc., go turbid device can reach fabulous filter effect, described multi-medium filtering device 1 includes filter body, supporting plate 11 is set in described filter body, described supporting plate 11 arranges filter material layer, described filter material layer is made up of the coarse filtration layer 4 on upper strata and the fine filtering layer 5 of lower floor, coarse filtration layer 4 is preferably without bituminous coal filter course, specific surface area is big, energy of adsorption is high, to float advantages of good adsorption effect, filtration resistance is little, in general alkalescence, neutral all insoluble with in acid water, mechanical strength is also better.The top of described filter body arranges water inlet pipe 12, the bottom of described filter body arranges outlet pipe 13, described outlet pipe 13 arranges turbidity detector 14 and the first electromagnetic valve 15, the top of described coarse filtration layer 4 arranges arc groove 41, the bottom of described filter body arranges backwash water inlet pipe 16, backwash air inlet pipe 17 and backwash outlet pipe 18, described backwash outlet pipe 18 upwardly extends and runs through filter material layer, described backwash outlet pipe 18 arranges the second electromagnetic valve 19, when turbidity detector 14 detects that delivery turbidity exceedes predetermined standard time and passes data to background server, background server controls the first electromagnetic valve 15 and closes, second electromagnetic valve 19 is opened, start backwash, during backwash, backwash water is flowed up through filter material layer by supporting plate 11, float on filter material layer is taken away, the top of coarse filtration layer 4 arranges arc groove 41, the bottom of backwash water automatic stream groove is flowed away by backwash outlet pipe 18, for reaching better backwash effect, avoid hardening the generation of problem, improve the cycle of operation of device, the counter-flushing process preferably employed is: 3-5min is washed in advanced circulation of qi promoting, then carry out gas-vapor mix and wash 8-10min, finally wash 8-10min, washing intensity is 8-10m3/m2.h, air purge pressure 0.07MPa.Described fine filtering layer 5 is made up of first quartz sand layer the 51, second quartz sand layer 52 of two-layer different-grain diameter, fine filtering layer 5 is constituted as well by the quartz sand layer of two-layer different-grain diameter, by the quartz sand layer of different gradation, can well float in trap water and part colloid or iron ion etc., the thickness simultaneously controlling each layer also reduces the height of tank body while ensureing filter effect, decreases the investment of equipment.Described coarse filtration layer 4, first quartz sand layer 51, it is respectively provided with in second quartz sand layer 52 and extends transversely through described coarse filtration layer 4, first quartz sand layer 51, the helicitic texture of the second quartz sand layer 52, described helicitic texture includes threaded rod 42 and cylinder 43, described coarse filtration layer 4, first quartz sand layer 51, the screwed hole matched with threaded rod 42 it is respectively provided with in second quartz sand layer 52, the sidewall of described filter body is stretched out at the two ends of described threaded rod 42, connecting rod on described cylinder 43 is rotating with one end of described threaded rod 42 to be connected, described cylinder 43 drives described threaded rod 42 at described coarse filtration layer 4, first quartz sand layer 51, transverse shifting in second quartz sand layer 52, by the disturbance of helicitic texture, be conducive to the space expanding between granule when backwash, promote that the current that filtering layer inner suspension thing is rinsed are taken away, increase the filter effect of multi-medium filtering device 1.Also including waste liquid tank 31, described ultrafiltration apparatus 3 arranges sewer pipe 32, described sewer pipe 32, backwash outlet pipe 18 connect with waste liquid tank 31.
Described demineralizer includes carbon dioxide cleaner 6, described carbon dioxide cleaner 6 connects with ultrafiltration apparatus 3, described carbon dioxide cleaner 6 sets gradually the mixed bed 7 of connection along water (flow) direction, sweet-water tank 8, oxygen-eliminating device 9 and tank 10, described mixed bed 7 outlet pipe 13 is provided with resin catcher 73, non-return valve 74 and ammonification pipeline 71, ammonification pipeline 71 connects with the ammonia batch meter 72 storing ammonia solution, the outlet of described oxygen-eliminating device 9 is connected with tank 10 by inlet pipeline, described inlet pipeline arranges water-water jet 91, described water-water jet 91 connects with ammonia batch meter 72, described water-water jet 91 arranges pH sampling line 92, described pH sampling line 92 is provided with pH meter 93.The outlet position of described sweet-water tank 8 is provided with the demineralized water sampling line 81 towards chemical laboratory, and described sampling line is provided with sampling valve.Efficiently former water can being carried out advanced desalination, it is prevented that the fouling of heat power equipment, corrosion, it is to avoid pipe explosion accident, effectively prevent the salification of superheater and steam turbine, this system equipment floor space is little, non-pollutant discharge, operation is simple to operate, be easily maintained.Having the beneficial effects that of the present embodiment: ammonia solution is added in sweet-water tank 8, being configured to qualified boiler feedwater, it is to avoid the suddenly big or suddenly small phenomenon of ammonia amount in product water；Water-water jet 91 connects and arranges pH sampling line 92 with ammonia batch meter 72, monitors ammon amount and the pH value of demineralized water real-time, easily, reduces the sour corrosion of conveyance conduit and steam boiler equipment, extends the service life of steam boiler；The outlet position of sweet-water tank 8 is provided with the demineralized water sampling line 81 towards chemical laboratory and is conducive to monitoring in real time the water quality of demineralized water, better controls water outlet purity.
Claims (6)
1. the Water Treatment device in a thermal power plant, including removing turbid device and demineralizer, it is characterized in that: described in go turbid device to include the multi-medium filtering device (1) being sequentially connected with along water (flow) direction, active carbon filtering device (2), ultrafiltration apparatus (3), described multi-medium filtering device (1) includes filter body, supporting plate (11) is set in described filter body, described supporting plate arranges filter material layer on (11), described filter material layer is made up of the coarse filtration layer (4) on upper strata and the fine filtering layer (5) of lower floor, the top of described filter body arranges water inlet pipe (12), the bottom of described filter body arranges outlet pipe (13), described outlet pipe (13) arranges turbidity detector (14) and the first electromagnetic valve (15), the top of described coarse filtration layer (4) arranges arc groove (41), the bottom of described filter body arranges backwash water inlet pipe (16), backwash air inlet pipe (17) and backwash outlet pipe (18), described backwash outlet pipe (18) upwardly extends runs through filter material layer, described backwash outlet pipe (18) arranges the second electromagnetic valve (19), described fine filtering layer (5) is by first quartz sand layer (51) of two-layer different-grain diameter, second quartz sand layer (52) is constituted, described coarse filtration layer (4), first quartz sand layer (51), it is respectively provided with in second quartz sand layer (52) and extends transversely through coarse filtration layer (4), first quartz sand layer (51), the helicitic texture of the second quartz sand layer (52), described helicitic texture includes threaded rod (42) and cylinder (43), described coarse filtration layer (4), first quartz sand layer (51), the screwed hole matched with threaded rod (42) it is respectively provided with in second quartz sand layer (52), the sidewall of filter body is stretched out at the two ends of described threaded rod (42), connecting rod on described cylinder (43) is rotating with one end of threaded rod (42) to be connected, described cylinder (43) drives threaded rod (42) in coarse filtration layer (4), first quartz sand layer (51), second quartz sand layer (52) interior transverse shifting；
Described demineralizer includes carbon dioxide cleaner (6), described carbon dioxide cleaner (6) connects with ultrafiltration apparatus (3), and described carbon dioxide cleaner (6) arranges the mixed bed (7), sweet-water tank (8), oxygen-eliminating device (9) and the tank (10) that are sequentially connected with along water (flow) direction.
2. the Water Treatment device in a kind of thermal power plant according to claim 1, it is characterized in that: being additionally provided with ammonification pipeline (71) on the outlet pipeline of described mixed bed (7), ammonification pipeline (71) connects with the ammonia batch meter (72) storing ammonia solution.
3. the Water Treatment device in a kind of thermal power plant according to claim 2, it is characterized in that: the outlet of described oxygen-eliminating device (9) is connected with tank (10) by inlet pipeline, described inlet pipeline arranges water-water jet (91), described water-water jet (91) connects with ammonia batch meter (72), described water-water jet (91) arranges pH sampling line (92), and described pH sampling line (92) is provided with pH meter (93).
4. the Water Treatment device in a kind of thermal power plant according to claim 1, it is characterized in that: the outlet position of described sweet-water tank (8) is provided with the demineralized water sampling line (81) towards chemical laboratory, and described demineralized water sampling line (81) is provided with sampling valve.
5. the Water Treatment device in a kind of thermal power plant according to claim 1, it is characterised in that: the outlet pipeline of described mixed bed (7) is provided with resin catcher (73) and non-return valve (74).
6. the Water Treatment device in a kind of thermal power plant according to claim 1, it is characterized in that: also include waste liquid tank (31), arranging sewer pipe (32) on described ultrafiltration apparatus (3), described sewer pipe (32), backwash outlet pipe (18) connect with waste liquid tank (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620148976.8U CN205347049U (en) | 2016-02-26 | 2016-02-26 | Chemical water treatment device of thermal power factory |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620148976.8U CN205347049U (en) | 2016-02-26 | 2016-02-26 | Chemical water treatment device of thermal power factory |
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| CN205347049U true CN205347049U (en) | 2016-06-29 |
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| CN201620148976.8U Expired - Fee Related CN205347049U (en) | 2016-02-26 | 2016-02-26 | Chemical water treatment device of thermal power factory |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113582429A (en) * | 2021-07-19 | 2021-11-02 | 浙江米皇新材股份有限公司 | Surface treatment waste water recycle device |
-
2016
- 2016-02-26 CN CN201620148976.8U patent/CN205347049U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113582429A (en) * | 2021-07-19 | 2021-11-02 | 浙江米皇新材股份有限公司 | Surface treatment waste water recycle device |
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Granted publication date: 20160629 Termination date: 20170226 |