CN209835784U - Purification and recycling system for grinding wastewater and waste degreasing agent - Google Patents
Purification and recycling system for grinding wastewater and waste degreasing agent Download PDFInfo
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- CN209835784U CN209835784U CN201920138990.3U CN201920138990U CN209835784U CN 209835784 U CN209835784 U CN 209835784U CN 201920138990 U CN201920138990 U CN 201920138990U CN 209835784 U CN209835784 U CN 209835784U
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Abstract
The utility model discloses a grind waste water and abolish finish purification recycling system, include: a waste liquid storage barrel; an oil-water separation tank; a filter; a nano-filtration tank; a nano cross-flow filtration membrane; and recycling the storage barrel. The system is adopted to treat similar waste water and waste liquid such as cleaning, grinding, tumbling and the like, and the water quality after treatment reaches or is superior to the following standards: the color is transparent and clear, the SS removal rate of the water body is more than 99.9 percent, and the oil stain removal rate is 99.9 percent. The effective components in the water body can be recycled, so that 70-80% of chemical degreasing agents or polishing agents used in grinding in the production process can be reduced, and meanwhile, high-concentration pollution sources discharged into a waste water system can be greatly reduced or 70-80% of outsourcing treatment capacity can be reduced, so that the reduction and cyclic utilization of production raw materials and the emission reduction of waste water are realized.
Description
Technical Field
The utility model relates to a processing procedure grinds, barreles, washs the waste liquid waste water treatment retrieval and utilization technique that produces after the machine tooling, concretely relates to grind waste water and abolish finish purification recycling system.
Background
In the machining production process, burrs on the surface of a metal-machined product need to be removed, or the glossiness and the roughness of the surface need to be changed, and oil stain and dirt on the surface need to be removed, so that the quality of the product (such as process requirements, cleanliness requirements and the like) is ensured; similarly, the tumbling is similar; in addition, after the machined oil-containing product is cleaned in the oil removing tank for a period of time, the original cleaning liquid in the oil removing tank is blackened and turbid due to a large amount of oil stains and other dirt brought by the product, and needs to be replaced periodically.
The grinding wastewater is high-concentration COD/SS wastewater, the COD is up to 1 x 104Above PPM, SS up to 4 x 104The foam is rich above PPM; the COD of the cleaning waste liquid is up to 3 x 104Above PPM, SS up to 1 x 104The foam is rich above PPM; the two waste liquids cannot be directly discharged to a sewage station; at present, a dilution method is usually adopted, the concentration is diluted by at least 50-100 times to be low, then the conventional process is adopted for treatment, and the dilution method consumes a large amount of clean water resources, so that the cost is high, and the burden is heavy for enterprises.
Disclosure of Invention
To the above problem, the utility model provides a grind waste water and abolish finish purification recycling system can purify the retrieval and utilization production with former processing waste liquid, reduces the use amount 70% of production medicament, reduces the waste water treatment cost 70%.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a system for purifying and recycling grinding wastewater and waste degreasing agent, includes:
the waste liquid storage barrel is used for storing the grinding or oil groove removing waste liquid generated in a workshop;
the oil-water separation tank is connected with the waste liquid storage barrel, particularly connected with the first lift pump and used for removing oil stains and particles on the surface of the waste liquid,
the oil-water separation tank comprises a tank body, an oil baffle plate and a sand settling weir are arranged in the tank body, a gap (20mm) is formed between the lower end of the oil baffle plate and a bottom plate of the tank body, the side wall and the bottom of the sand settling weir are in sealing fit with the tank body, the oil baffle plate and the tank body define a first area, and the oil baffle plate, the sand settling weir and the tank body define a second area; a third area enclosed by the sand settling weir and the tank body;
the filter comprises a first filter and a second filter, the second filter is connected in series with the first filter, the first filter pumps the primarily purified waste liquid in the third area into the first filter through a third lift pump, the waste liquid flows to the second filter after being filtered by the first filter for secondary filtration, the diameter of the filter hole of the first filter is 2-10 micrometers, and the diameter of the filter hole of the second filter is 0.5-2 micrometers;
the nano filter barrel (playing a role of intermediate storage) is communicated with a liquid outlet of the second filter; when the liquid level in the nano filter barrel reaches the instruction liquid level, the booster pump is started to press the wastewater in the nano filter barrel into the nano cross flow filter membrane;
the nano-filtration membrane group comprises a filtration shell and a nano-scale cross-flow filtration membrane arranged in the filtration shell, and the nano-scale cross-flow filtration membrane divides the interior of the filtration shell into a fifth area and a sixth area;
one end of the return pipe is communicated with the sixth area, and the other end of the return pipe is communicated with the nano filter barrel;
and pumping the waste liquid in the nano filter barrel to a fifth area by a booster pump, and discharging the recycling liquid purified by the nano cross flow filter membrane in the sixth area to a recycling storage barrel.
On the basis of the scheme, preferably, a coarse filter screen is arranged in a first area enclosed by the oil baffle plate and the groove body.
On the basis of the scheme, preferably, an overflow outlet is arranged on a groove body which is surrounded into a first area with the oil baffle plate, the overflow outlet is connected with an auxiliary groove, the auxiliary groove is a fourth area, and an oil skimming machine is arranged on the auxiliary groove to separate floating oil into a waste oil barrel.
In addition to the above, preferably, the sub tank is provided with a second lift pump for pumping the waste liquid below the floating oil in the sub tank to the first region.
On the basis of the scheme, the device preferably further comprises a backwashing pump, one end of the backwashing pump is communicated with the recycling storage barrel, and the other end of the backwashing pump is communicated with the sixth area.
The utility model has the advantages that:
the system is adopted to treat similar waste water and waste liquid such as cleaning, grinding, tumbling and the like, and the water quality after treatment reaches or is superior to the following standards: the color is transparent and clear, the SS removal rate of the water body is more than 99.9 percent, and the oil stain removal rate is 99.9 percent. The effective components in the water body can be recycled, so that 70-80% of chemical degreasing agents or polishing agents used in grinding in the production process can be reduced, and meanwhile, high-concentration pollution sources discharged into a waste water system can be greatly reduced or 70-80% of outsourcing treatment capacity can be reduced, so that the reduction and cyclic utilization of production raw materials and the emission reduction of waste water are realized.
Drawings
Fig. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of the oil-water separation tank of the present invention.
Detailed Description
The invention is further described below with reference to specific embodiments.
As shown in fig. 1, a system for purifying and recycling grinding wastewater and waste oil removal agent comprises:
the waste liquid storage barrel 1 is used for storing grinding or oil groove removing waste liquid generated in a workshop;
an oil-water separation tank 3 which is connected with the waste liquid storage barrel, specifically connected with the first lift pump 2 and used for removing oil stains and particles on the surface of the waste liquid,
the oil-water separation tank 3 comprises a tank body 301, an oil baffle plate 302 and a sand setting weir 303 are arranged in the tank body, a gap (20mm) is formed between the lower end of the oil baffle plate and the bottom plate of the tank body, the side wall and the bottom of the sand setting weir are in sealing fit with the tank body, the oil baffle plate and the tank body are enclosed into a first area 304, and the oil baffle plate, the sand setting weir and the tank body are enclosed into a second area 305; a third area 306 enclosed by the sand settling weir and the trough body;
the filter 5 comprises a first filter 501 and a second filter 502, the second filter is connected in series with the first filter, the first filter pumps the primarily purified waste liquid in the third area into the first filter through a third lift pump 4, the primarily purified waste liquid flows to the second filter after being filtered by the first filter for secondary filtration, the diameter of the filter hole of the first filter is 2-10 micrometers, and the diameter of the filter hole of the second filter is 0.5-2 micrometers;
a nano filter barrel 6 (playing a role of intermediate storage) is communicated with a liquid outlet of the filter II; when the liquid level in the nano filter barrel reaches the instruction liquid level, the booster pump 7 is started to press the wastewater in the nano filter barrel into the nano cross flow filter membrane group;
the nano-filtration membrane group 8 comprises a filtration shell 803 and a nano-scale cross-flow filtration membrane 804 arranged in the filtration shell, and the nano-scale cross-flow filtration membrane divides the interior of the filtration shell into a fifth area 801 and a sixth area 802;
a return pipe 805, one end of which is communicated with the fifth area and the other end is communicated with the nano-filtration barrel; specifically, the backflow pipe is arranged above the filter shell which is enclosed into the fifth area, the concentrated solution in the fifth area flows back to the nano filter barrel for reciprocating and circulating filtration through the design of the backflow pipe, the front side of the membrane is washed in a cross flow manner, dirt is ensured to enter membrane holes of the nano cross flow filtration membrane,
the booster pump pumps the waste liquid in the nano filter barrel to a fifth area, and the recycling liquid purified by the nano cross flow filter membrane in the sixth area flows out to the recycling storage barrel 10.
The above scheme is utilized to treat similar waste water and waste liquid such as cleaning, grinding, tumbling and the like, and the water quality after treatment reaches or is superior to the following standards: the color is transparent and clear, the SS removal rate of the water body is more than 99.9 percent, and the oil stain removal rate is 99.9 percent. The effective components in the water body can be recycled, so that 70-80% of chemical degreasing agents or polishing agents used in grinding in the production process can be reduced, and meanwhile, high-concentration pollution sources discharged into a waste water system can be greatly reduced or 70-80% of outsourcing treatment capacity can be reduced, so that the reduction and cyclic utilization of production raw materials and the emission reduction of waste water are realized.
On the basis of the above embodiment, as further preferred the oil baffle and the first region that the cell body encloses be provided with coarse filtration net 307, can carry out preliminary entrapment to discharging into particulate matter in the first region in the waste liquid, filter, protect the third lift pump, prolong the life of third lift pump, simultaneously, also reduced the load of follow-up filter.
On the basis of the above embodiment, as a further preferable option, an overflow outlet 308 is arranged on a tank body which encloses a first area with the oil baffle plate, the overflow outlet is connected with an auxiliary tank 309, the auxiliary tank is a fourth area, an oil skimming machine 310 is installed on the auxiliary tank to separate floating oil into a waste oil tank, and the floating oil in the first area can be discharged to the auxiliary tank in time for oil skimming.
In addition to the above embodiment, it is further preferable that the sub tank is provided with a second lift pump 311 for pumping the waste liquid under the floating oil in the sub tank to the first region, and the waste liquid under the floating oil is returned by the second lift pump.
On the basis of the embodiment, as further preferred, the device further comprises a backwashing pump 9, one end of the backwashing pump is communicated with the recycling storage barrel, the other end of the backwashing pump is communicated with the sixth area, and recycling liquid is pumped reversely to carry out reverse cleaning on the nanoscale cross-flow filtering membrane so as to flush away dirt blocking the front surface of the membrane.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (5)
1. The utility model provides a system for purifying and recycling grinding wastewater and waste degreasing agent, which is characterized by comprising:
the waste liquid storage barrel is used for storing the grinding or oil groove removing waste liquid generated in a workshop;
the oil-water separation tank is connected with the waste liquid storage barrel, particularly connected with the first lift pump and used for removing oil stains and particles on the surface of the waste liquid,
the oil-water separation tank comprises a tank body, an oil baffle plate and a sand setting weir are arranged in the tank body, a gap is arranged between the lower end of the oil baffle plate and the bottom plate of the tank body, the side wall and the bottom of the sand setting weir are in sealing fit with the tank body, the oil baffle plate and the tank body define a first area, and the oil baffle plate, the sand setting weir and the tank body define a second area; a third area enclosed by the sand settling weir and the tank body;
the filter comprises a first filter and a second filter, the second filter is connected in series with the first filter, and the first filter pumps the primarily purified waste liquid in the third area into the first filter through a third lift pump;
the nano filter barrel is communicated with the liquid outlet of the second filter; wastewater in the nano filter barrel is pressed into the nano cross-flow filter membrane through a booster pump;
the nano-filtration membrane group comprises a filtration shell and a nano-scale cross-flow filtration membrane arranged in the filtration shell, and the nano-scale cross-flow filtration membrane divides the interior of the filtration shell into a fifth area and a sixth area;
one end of the return pipe is communicated with the sixth area, and the other end of the return pipe is communicated with the nano filter barrel;
and pumping the waste liquid in the nano filter barrel to a fifth area by a booster pump, and discharging the recycling liquid purified by the nano cross flow filter membrane in the sixth area to a recycling storage barrel.
2. The system for purifying and recycling grinding wastewater and waste oil-removing agents as claimed in claim 1, wherein a coarse filter screen is arranged in a first area enclosed by the oil baffle plate and the tank body.
3. The system for purifying and recycling grinding wastewater and waste oil-removing agents as claimed in claim 1, wherein an overflow outlet is provided on a tank body which encloses a first area with the oil baffle plate, the overflow outlet is connected with an auxiliary tank, the auxiliary tank is a fourth area, and an oil skimming machine is installed on the auxiliary tank to separate floating oil into a waste oil barrel.
4. The system for purifying and recycling grinding wastewater and oil-removing waste agents according to claim 3, wherein the secondary tank is provided with a second lift pump for pumping the waste liquid below the floating oil in the secondary tank to the first region.
5. The system for purifying and recycling grinding wastewater and oil-removing waste agents as claimed in claim 1, further comprising a backwash pump, wherein one end of the backwash pump is communicated with the recycling storage barrel, and the other end of the backwash pump is communicated with the sixth area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920138990.3U CN209835784U (en) | 2019-01-28 | 2019-01-28 | Purification and recycling system for grinding wastewater and waste degreasing agent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920138990.3U CN209835784U (en) | 2019-01-28 | 2019-01-28 | Purification and recycling system for grinding wastewater and waste degreasing agent |
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| CN209835784U true CN209835784U (en) | 2019-12-24 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111377578A (en) * | 2020-03-10 | 2020-07-07 | 江山市恒生实业有限公司 | Wastewater treatment and purification process for chain production |
| WO2023005433A1 (en) * | 2021-07-28 | 2023-02-02 | 苏州爱恩机械有限公司 | Efficient cleaning fluid purification device |
| CN117620882A (en) * | 2024-01-18 | 2024-03-01 | 苏州欣天新精密机械有限公司 | Low-pollution high-precision double-end-face grinding equipment |
-
2019
- 2019-01-28 CN CN201920138990.3U patent/CN209835784U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111377578A (en) * | 2020-03-10 | 2020-07-07 | 江山市恒生实业有限公司 | Wastewater treatment and purification process for chain production |
| WO2023005433A1 (en) * | 2021-07-28 | 2023-02-02 | 苏州爱恩机械有限公司 | Efficient cleaning fluid purification device |
| CN117620882A (en) * | 2024-01-18 | 2024-03-01 | 苏州欣天新精密机械有限公司 | Low-pollution high-precision double-end-face grinding equipment |
| CN117620882B (en) * | 2024-01-18 | 2024-04-12 | 苏州欣天新精密机械有限公司 | Low-pollution high-precision double-end-face grinding equipment |
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