CN104438379B - A kind of cold pilger mill drain oil recovery equipment - Google Patents

A kind of cold pilger mill drain oil recovery equipment Download PDF

Info

Publication number
CN104438379B
CN104438379B CN201410596258.2A CN201410596258A CN104438379B CN 104438379 B CN104438379 B CN 104438379B CN 201410596258 A CN201410596258 A CN 201410596258A CN 104438379 B CN104438379 B CN 104438379B
Authority
CN
China
Prior art keywords
oil
cold pilger
pilger mill
fuel tank
discharge end
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
Application number
CN201410596258.2A
Other languages
Chinese (zh)
Other versions
CN104438379A (en
Inventor
吴建军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHONGQING IRON & STEEL INSTITUTE Co.,Ltd.
Original Assignee
Chongqing Iron and Steel Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chongqing Iron and Steel Group Co Ltd filed Critical Chongqing Iron and Steel Group Co Ltd
Priority to CN201410596258.2A priority Critical patent/CN104438379B/en
Publication of CN104438379A publication Critical patent/CN104438379A/en
Application granted granted Critical
Publication of CN104438379B publication Critical patent/CN104438379B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

The invention discloses a kind of cold pilger mill drain oil recovery equipment, comprise cold pilger mill, the discharge end outer wall of described cold pilger mill is provided with a precipitation fuel tank, described precipitation fuel tank upper surface near the downward-sloping setting in cold pilger mill one end and and the exit position of discharging guide pin bushing above the lowest part correspondence that connects of cold pilger mill discharge end outer wall be provided with oil trap, described oil trap is connected with the filter being positioned at precipitation fuel tank internal by the oil inlet pipe of bottom, and described filter comprises surface and is provided with the housing of filter eye and is positioned at the filter core of enclosure interior; The discharge end outer wall of the cold pilger mill of described precipitation fuel tank lower inside is provided with return port be communicated with the oil storage space bottom cold pilger mill.Structure of the present invention is simple, can realize the collection of cold pilger mill discharge end waste oil, purify and recycle.Also have simple to operate, the advantage that fluid removal effect is good simultaneously.Effectively can to reclaim in cold pilger mill by the ROLLING OIL that steel pipe leads out, avoid ROLLING OIL to waste.

Description

A kind of cold pilger mill drain oil recovery equipment
Technical field
The present invention relates to a kind of cold pilger mill auxiliary device, particularly relate to a kind of cold pilger mill drain oil recovery equipment.
Background technology
Cold pilger mill utilizes annular distance shape to carry out the process equipment of cold conditions rolling to hollow forging (i.e. base pipe), and cold pilger mill has good cogging performance, and stock utilization is high, and precision and surface roughness are all better than drawn tube.Be rolled in production at cold pilger mill, all must smear rolled lubricating oil to the base pipe entering roll, be beneficial to the roll forming to steel pipe.
After steel pipe is sent into and is rolled out in cold pilger mill, the surface of steel pipe and inwall can be stained with the ROLLING OIL in cold pilger mill, ROLLING OIL in such cold rolled tube handset can be brought out by steel pipe, need normal operation cold pilger mill oiling being maintained to machine of staff's not timing, and the ROLLING OIL of taking out of is generally wasted and contaminated environment.And the subsequent processes technique of steel pipe requires to clean up the rolling wet goods on steel pipe.
Therefore, how to complete the collection of cold pilger mill discharge end waste oil, purification and cycling and reutilization, reduce loss and the waste of ROLLING OIL, ensure the normal operation of cold pilger mill, guarantee that institute's rolled steel tube obtains good surface quality and pipe inside and outside wall cleannes simultaneously, alleviate the labour intensity of downstream process staff and reduce the cost of follow-up washing steel pipes and manually become a production difficult problem.
Summary of the invention
For above-mentioned the deficiencies in the prior art, technical problem to be solved by this invention is: how to provide a kind of structure simple, the cold pilger mill drain oil recovery equipment can realize the collection of cold pilger mill discharge end waste oil, purifying and recycle, and make it have simple to operate further, the effect that fluid removal effect is good.Can effectively reclaim in cold pilger mill by ROLLING OIL that steel pipe leads out, both ROLLING OIL had been avoided to waste, the surface quality of simultaneously rolled steel tube being carried out to surface and inwall carries out pretreatment with clean, and the workload reducing downstream process washing steel pipes, with artificial, reduces the production cost of enterprise simultaneously.
In order to solve the problems of the technologies described above, present invention employs following technical scheme:
A kind of cold pilger mill drain oil recovery equipment, comprise cold pilger mill, it is oil storage space bottom cold pilger mill, milling train oil pump is provided with in oil storage space, milling train oil pump is connected with the ROLLING OIL shower nozzle being positioned at milling train head inlet pipe end position by oil pipe, it is characterized in that, the discharge end outer wall of described cold pilger mill is provided with a precipitation fuel tank, described precipitation fuel tank upper surface near the downward-sloping setting in cold pilger mill one end and and the exit position of discharging guide pin bushing above the lowest part correspondence that connects of cold pilger mill discharge end outer wall be provided with oil trap, described oil trap is connected with the filter being positioned at precipitation fuel tank internal by the oil inlet pipe of bottom, described filter comprises surface and is provided with the housing of filter eye and is positioned at the filter core of enclosure interior, the discharge end outer wall of the cold pilger mill of described precipitation fuel tank lower inside is provided with return port be communicated with the oil storage space bottom cold pilger mill.
In the present invention, be provided with precipitation fuel tank, precipitation fuel tank upper surface is obliquely installed and is provided with oil trap at lowest part, conveniently can collect the fluid of unnecessary attachment on rolled steel tube like this, and make fluid enter into the filter in precipitation fuel tank by oil trap, in precipitated oil box cavity, fully precipitate purification after completing filtration, upper clear supernate is back in the oil storage space bottom cold pilger mill by return port, can be evacuated to ROLLING OIL shower nozzle again use by milling train oil pump.So just achieve the automatic collection of cold pilger mill discharge end waste oil, purification and cycling and reutilization, reduce loss and the waste of ROLLING OIL, ensure the normal operation of cold pilger mill.
As optimization, also degreasing unit is provided with above described precipitation fuel tank, described degreasing unit comprise one be fixed on the discharge end outer wall of cold pilger mill except tubing and casing, except tubing and casing just to discharging guide pin bushing outlet arrange and internal diameter is greater than rolled steel tube external diameter, in oil removing casing tube internal hole, interval is furnished with at least two interior installation annular grooves be arranged circumferentially and is provided with O-ring seals in interior installation annular groove, this O-ring seals internal diameter and rolled steel tube external diameter coupling.Further for improving oil yield efficiency, ensure deoiling effect, removing in tubing and casing to being arranged with oil leak hole with convenient draining between described adjacent installation annular groove.
After such optimization, after rolled steel tube exports out from discharging guide pin bushing, directly enter into except in tubing and casing, complete by the sealing ring in tubing and casing and the fluid of rolled steel tube outer surface is removed, make fluid from flowing out to below except tubing and casing two ends and oil leak hole and being collected by oil trap.The fluid so just achieving rolled steel tube outer surface is removed, and its structure is simple and effect of deoiling is very good.
Further, described oil removing casing tube internal hole end positions is set to the taper type that outside one end is larger diameter end.Like this, the turnover of rolled steel tube and the dirty of fluid is facilitated.
As optimization, described degreasing unit also comprises and is positioned at the air nozzle and an oil removing piston that precipitation fuel tank arranges away from cold pilger mill one end position, described air nozzle is connected with air compressor machine by tracheae, described oil removing piston entirety is in column and external diameter is less than rolled steel tube internal diameter, oil removing outer surface of piston vertically interval is furnished with several outer installation annular groove and installs in annular groove outside and is provided with O-ring seals, this O-ring seals external diameter and rolled steel tube internal diameter coupling.
Like this, after rolled steel tube outer surface fluid is removed, can again oil removing piston be inserted into rolled steel tube endoporus from rolled steel tube one end, then the oil removing piston by air nozzle aligning rolled steel tube endoporus is jet, promote oil removing piston by air-flow forced and drive the fluid in rolled steel tube endoporus to move to the other end from rolled steel tube one end, realizing the removal of rolled steel tube inner surface fluid.Like this, adopt the jet mode adding sealing ring striking, even if there is gap in sealing ring frizing process, also can be made up by powerful stream pressure, prevent fluid from spilling from gap, drastically increase the inner deoiling effect of rolled steel tube.
Further, described oil removing piston two ends are taper type.Like this, facilitate the insertion of oil removing piston and move at rolled steel tube inner surface, avoiding scratching rolled steel tube inner surface.
As optimization, described precipitated oil box cavity bottom surface is provided with precipitation fuel tank Check valve with hinged closure member away from the downward-sloping setting in cold pilger mill one end and in farthest and the external world connects.Like this, sedimentary outer row in fuel tank can conveniently be precipitated.
In sum, structure of the present invention is simple, can realize the collection of cold pilger mill discharge end waste oil, purify and recycle.Also have simple to operate, the advantage that fluid removal effect is good simultaneously.Can effectively reclaim in cold pilger mill by ROLLING OIL that steel pipe leads out, both ROLLING OIL had been avoided to waste, the surface quality of simultaneously rolled steel tube being carried out to surface and inwall carries out pretreatment with clean, and the workload reducing downstream process washing steel pipes, with artificial, reduces the production cost of enterprise simultaneously.Be applicable to the cold pilger mill operation of rolling promote the use of.
Accompanying drawing explanation
Fig. 1 is the structural representation of preferred embodiment for the present invention structure.In figure, arrow represents that fluid flows to.
Fig. 2 is the structure separately except tubing and casing in Fig. 1.
Fig. 3 is the structure of independent oil removing piston in Fig. 1.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is described in further detail.
During concrete enforcement: as shown in Figure 1-Figure 3, a kind of cold pilger mill drain oil recovery equipment, comprise cold pilger mill 24, it is oil storage space 23 bottom cold pilger mill 24, milling train oil pump 22 is provided with in oil storage space 23, milling train oil pump 22 is connected with the ROLLING OIL shower nozzle 1 being positioned at milling train head 2 inlet pipe end position by oil pipe 3, wherein, discharge end 5 outer wall of described cold pilger mill 24 is provided with a precipitation fuel tank 18, described precipitation fuel tank 18 upper surface near the downward-sloping setting in cold pilger mill 24 one end and and the exit position of discharging guide pin bushing 4 above the lowest part correspondence that connects of cold pilger mill discharge end 5 outer wall be provided with oil trap 9, described oil trap 9 is connected with the filter 10 being positioned at precipitation fuel tank 18 inside by the oil inlet pipe 20 of bottom, described filter 10 comprises surface and is provided with the housing of filter eye and is positioned at the filter core of enclosure interior, the discharge end outer wall of the cold pilger mill of described precipitation fuel tank 18 lower inside is provided with return port 21 be communicated with the oil storage space 23 bottom cold pilger mill.
Wherein, also degreasing unit is provided with above described precipitation fuel tank 18, described degreasing unit comprise one be fixed on discharge end 5 outer wall of cold pilger mill except tubing and casing 7, except tubing and casing 7 just to discharging guide pin bushing 4 export arrange and internal diameter is greater than rolled steel tube 11 external diameter, except interval in tubing and casing 7 endoporus be furnished with at least two be arranged circumferentially in annular groove is installed and in interior installation annular groove, O-ring seals 8 is installed, this O-ring seals 8 internal diameter and rolled steel tube 11 external diameter coupling.The fluid so just conveniently realizing rolled steel tube outer surface is removed, and its structure is simple and effect of deoiling is very good.Meanwhile, for improving oil yield efficiency, ensure deoiling effect, removing in tubing and casing 7 to being arranged with oil leak hole with convenient draining between described adjacent installation annular groove.
Wherein, except the connecting plate 6 of tubing and casing 7 by a L shape is fixed on discharge end 5 outer wall.
Wherein, described tubing and casing 7 endoporus end positions of removing is set to the taper type that outside one end is larger diameter end.Like this, the turnover of rolled steel tube and the dirty of fluid is facilitated.
Wherein, described degreasing unit also comprises and is positioned at the air nozzle 14 and an oil removing piston 13 that precipitation fuel tank arranges away from cold pilger mill one end position, described air nozzle 14 is connected with air compressor machine 16 by tracheae 15, described oil removing piston 13 entirety is in column and external diameter is less than rolled steel tube 11 internal diameter, oil removing piston 13 outer surface vertically interval is furnished with several outer installation annular groove and installs in annular groove outside and is provided with O-ring seals 12, this O-ring seals 12 external diameter and rolled steel tube internal diameter coupling.Like this, adopt the jet mode adding sealing ring striking, even if there is gap in sealing ring frizing process, also can be made up by powerful stream pressure, prevent fluid from spilling from gap, drastically increase the inner deoiling effect of rolled steel tube.
Wherein, described oil removing piston 13 two ends are taper type.Like this, facilitate the insertion of oil removing piston and move at rolled steel tube inner surface, avoiding scratching rolled steel tube inner surface.
Wherein, described precipitation fuel tank 18 inner chamber bottom surface is provided with precipitation fuel tank Check valve with hinged closure member 17 and the external world connects away from the downward-sloping setting in cold pilger mill one end and in farthest.Like this, sedimentary outer row in fuel tank can conveniently be precipitated.
When the present invention is used for waste oil recovery, after rolled steel tube exports out from discharging guide pin bushing, directly enter into except pulling out from the other end in tubing and casing, complete by the O-ring seals in tubing and casing and the fluid of rolled steel tube outer surface is removed, make fluid from flowing out to below except tubing and casing two ends and oil leak hole and being collected by oil trap; After rolled steel tube outer surface fluid is removed, can again oil removing piston be inserted into rolled steel tube endoporus from rolled steel tube one end, then the oil removing piston by air nozzle aligning rolled steel tube endoporus is jet, promote oil removing piston by air-flow forced and drive the fluid in rolled steel tube endoporus to move to the other end from rolled steel tube one end, realizing the removal of rolled steel tube inner surface fluid; Fluid is after rolled steel tube removal, because precipitation fuel tank upper surface is obliquely installed and is provided with oil trap at lowest part, fluid can be collected like this, and make fluid enter into the filter in precipitation fuel tank by oil trap, in precipitated oil box cavity, fully purification is precipitated after completing filtration, upper clear supernate is back in the oil storage space bottom cold pilger mill by return port, can be evacuated to ROLLING OIL shower nozzle again use by milling train oil pump.So just achieve the automatic collection of cold pilger mill discharge end waste oil, purification and cycling and reutilization, reduce loss and the waste of ROLLING OIL, ensure the normal operation of cold pilger mill.

Claims (5)

1. a cold pilger mill drain oil recovery equipment, comprise cold pilger mill, it is oil storage space bottom cold pilger mill, milling train oil pump is provided with in oil storage space, milling train oil pump is connected with the ROLLING OIL shower nozzle being positioned at milling train head inlet pipe end position by oil pipe, it is characterized in that, the discharge end outer wall of described cold pilger mill is provided with a precipitation fuel tank, described precipitation fuel tank upper surface near the downward-sloping setting in cold pilger mill one end and and the exit position of discharging guide pin bushing above the lowest part correspondence that connects of cold pilger mill discharge end outer wall be provided with oil trap, described oil trap is connected with the filter being positioned at precipitation fuel tank internal by the oil inlet pipe of bottom, described filter comprises surface and is provided with the housing of filter eye and is positioned at the filter core of enclosure interior, the discharge end outer wall of the cold pilger mill of described precipitation fuel tank lower inside is provided with return port be communicated with the oil storage space bottom cold pilger mill,
Also degreasing unit is provided with above described precipitation fuel tank, described degreasing unit comprise one be fixed on the discharge end outer wall of cold pilger mill except tubing and casing, except tubing and casing just to discharging guide pin bushing outlet arrange and internal diameter is greater than rolled steel tube external diameter, in oil removing casing tube internal hole, interval is furnished with at least two interior installation annular grooves be arranged circumferentially and is provided with O-ring seals in interior installation annular groove, this O-ring seals internal diameter and rolled steel tube external diameter coupling;
Described degreasing unit also comprises and is positioned at the air nozzle and an oil removing piston that precipitation fuel tank arranges away from cold pilger mill one end position, described air nozzle is connected with air compressor machine by tracheae, described oil removing piston entirety is in column and external diameter is less than rolled steel tube internal diameter, oil removing outer surface of piston vertically interval is furnished with several outer installation annular groove and installs in annular groove outside and is provided with O-ring seals, this O-ring seals external diameter and rolled steel tube internal diameter coupling.
2. cold pilger mill drain oil recovery equipment as claimed in claim 1, is characterized in that, removing in tubing and casing to being arranged with oil leak hole between described adjacent interior installation annular groove.
3. cold pilger mill drain oil recovery equipment as claimed in claim 1, it is characterized in that, described oil removing casing tube internal hole end positions is set to the taper type that outside one end is larger diameter end.
4. cold pilger mill drain oil recovery equipment as claimed in claim 1, it is characterized in that, described oil removing piston two ends are taper type.
5. cold pilger mill drain oil recovery equipment as claimed in claim 1, is characterized in that, described precipitated oil box cavity bottom surface is provided with precipitation fuel tank Check valve with hinged closure member away from the downward-sloping setting in cold pilger mill one end and in farthest and the external world connects.
CN201410596258.2A 2014-10-30 2014-10-30 A kind of cold pilger mill drain oil recovery equipment Active CN104438379B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410596258.2A CN104438379B (en) 2014-10-30 2014-10-30 A kind of cold pilger mill drain oil recovery equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410596258.2A CN104438379B (en) 2014-10-30 2014-10-30 A kind of cold pilger mill drain oil recovery equipment

Publications (2)

Publication Number Publication Date
CN104438379A CN104438379A (en) 2015-03-25
CN104438379B true CN104438379B (en) 2016-03-09

Family

ID=52885572

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410596258.2A Active CN104438379B (en) 2014-10-30 2014-10-30 A kind of cold pilger mill drain oil recovery equipment

Country Status (1)

Country Link
CN (1) CN104438379B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104785488B (en) * 2015-05-05 2017-01-25 中国重型机械研究院股份公司 Prefabricated type base oil gathering structure of twenty-high roll mill
CN109047344A (en) * 2018-08-23 2018-12-21 洛阳恒诺锚固技术有限公司 Cold tube rolling outer surface degreasing unit and cold tube rolling production system

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1005963A1 (en) * 1981-06-17 1983-03-23 Предприятие П/Я В-2328 Method of die rolling of tubes
US4413585A (en) * 1980-07-17 1983-11-08 Veb Schwermaschinenbau Kombinat "Ernst Thalmann"Magdeburg Process and arrangement for applying and drying liquid lubricant
JPS5992115A (en) * 1982-11-17 1984-05-28 Tokuyama Soda Co Ltd Cold drawing method of metallic pipe
CN2925658Y (en) * 2006-07-21 2007-07-25 宁波宝新不锈钢有限公司 Pressed-oil recovery apparatus for cold roller
CN101912887A (en) * 2010-07-12 2010-12-15 张远见 Steel tube deoiling machine
CN201949731U (en) * 2011-02-12 2011-08-31 重庆钢铁(集团)有限责任公司 Waste emulsion filtering system
CN202223977U (en) * 2011-08-23 2012-05-23 马鞍山市新马精密铝业有限公司 Circulation lubrication oil filtering and purifying system for cold drawing
CN202336476U (en) * 2011-10-27 2012-07-18 中色科技股份有限公司 Improved oil collecting tank for lubricating main machine roll of rolling machine
CN203900126U (en) * 2014-07-04 2014-10-29 重庆钢铁研究所有限公司 Rolling oil vacuum reclaiming device for cold pilger mill

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4413585A (en) * 1980-07-17 1983-11-08 Veb Schwermaschinenbau Kombinat "Ernst Thalmann"Magdeburg Process and arrangement for applying and drying liquid lubricant
SU1005963A1 (en) * 1981-06-17 1983-03-23 Предприятие П/Я В-2328 Method of die rolling of tubes
JPS5992115A (en) * 1982-11-17 1984-05-28 Tokuyama Soda Co Ltd Cold drawing method of metallic pipe
CN2925658Y (en) * 2006-07-21 2007-07-25 宁波宝新不锈钢有限公司 Pressed-oil recovery apparatus for cold roller
CN101912887A (en) * 2010-07-12 2010-12-15 张远见 Steel tube deoiling machine
CN201949731U (en) * 2011-02-12 2011-08-31 重庆钢铁(集团)有限责任公司 Waste emulsion filtering system
CN202223977U (en) * 2011-08-23 2012-05-23 马鞍山市新马精密铝业有限公司 Circulation lubrication oil filtering and purifying system for cold drawing
CN202336476U (en) * 2011-10-27 2012-07-18 中色科技股份有限公司 Improved oil collecting tank for lubricating main machine roll of rolling machine
CN203900126U (en) * 2014-07-04 2014-10-29 重庆钢铁研究所有限公司 Rolling oil vacuum reclaiming device for cold pilger mill

Also Published As

Publication number Publication date
CN104438379A (en) 2015-03-25

Similar Documents

Publication Publication Date Title
CN104438378B (en) A kind of cold pilger mill discharge end waste oil reclaims recycling method
CN104259225B (en) A kind of base pipe orifice deoiling method and waste oil recoverying and utilizing method thereof
CN104438379B (en) A kind of cold pilger mill drain oil recovery equipment
CN205412390U (en) Arrange sewage cycle and recycle self - cleaning well strainer
CN204159655U (en) A kind of base pipe orifice degreasing unit and cold rolled tube waste oil reclaimer thereof
CN212350151U (en) Automatic get rid of draw machine of machine oil
CN204159656U (en) A kind of waste oil recovery degreasing unit
CN204637747U (en) Washing slag water Special filtering device
CN102784911B (en) Cleaning machine for cleaning efficient liner blank coating
CN209261664U (en) A kind of centrifugal automobile air inlet processing unit
CN203990054U (en) A kind of water filtering device
CN205127548U (en) Toper water conservancy whirl degritting self - cleaning well strainer
CN103015095A (en) Filter equipment for glass fiber fabric impregnating tank
CN204159106U (en) To resist the enemy plain separator
CN203640893U (en) Improved precise fuel filter
CN204661741U (en) Blast furnace slag quenching water comprehensive utilization system for heat energy
CN111842679A (en) Automatic get rid of draw machine of machine oil
CN205977140U (en) Cleaning cart for oil field exploitation
CN213466922U (en) Textile printing and dyeing wastewater collection and treatment device
CN104190151A (en) Cutting liquid filter
CN205360749U (en) Cartridge filter for installation
CN205216364U (en) Trap formula self -cleaning filter
CN219284091U (en) Integrated cleaning maintenance device for water-cooled environmental bin
CN208374731U (en) A kind of water saving fixtures rinsing platform
CN220497202U (en) Portable mould water route cleaning machine

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20210310

Address after: 400084 No. 2, Magnesium Bridge Road, Area A, Jianqiao Industrial Park, Dadukou District, Chongqing

Patentee after: CHONGQING IRON & STEEL INSTITUTE Co.,Ltd.

Address before: Three village 400080 Dadukou District of Chongqing weir building 1 No. 1

Patentee before: CHONGQING IRON & STEEL (Group) Co.,Ltd.