CN206858594U - Saffian leather drying machine - Google Patents
Saffian leather drying machine Download PDFInfo
- Publication number
- CN206858594U CN206858594U CN201720717373.XU CN201720717373U CN206858594U CN 206858594 U CN206858594 U CN 206858594U CN 201720717373 U CN201720717373 U CN 201720717373U CN 206858594 U CN206858594 U CN 206858594U
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- heat
- recovery pipe
- heat recovery
- chamber body
- interior chamber
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Abstract
Saffian leather drying machine, including frame, hothouse, conveying mechanism and thermal source, hothouse include interior chamber body and insulated enclosure, and insulated enclosure is surrounded on interior chamber body；Interior chamber body is separated by coaming plate defines heat supply chamber and drying chamber, and conveying mechanism wears drying chamber；The bottom of coaming plate offers passage, and heat supply chamber is connected with drying chamber by passage, and thermal source connection heat supply chamber, the inwall of drying chamber is fixed with heat absorption aluminium sheet；The drying machine also includes heat recovery pipe, backheat pipeline and waste heat air duct, heat recovery pipe is arranged between insulated enclosure and interior chamber body, heat recovery pipe ring around and be fixed on the outer wall of interior chamber body, interior chamber body has exhaust outlet, the entrance point of heat recovery pipe is connected on exhaust outlet, and the port of export of heat recovery pipe wears insulated enclosure；Waste heat air duct interior and in conveying mechanism lower section located at drying chamber；Backheat pipeline connects heat recovery pipe and waste heat air duct, and dehumidifier and circulating fan are sequentially provided with backheat pipeline.
Description
Technical field
The utility model belongs to leather production technical field, is related to a kind of saffian leather drying machine.
Background technology
In the process of leather, drying is to improve an important ring for leather quality, and it can remove unnecessary in leather
Moisture, leather fiber is further shaped, created conditions for subsequent operation.Leather drier is to need to use in leather processing procedure
The visual plant arrived, existing conventional leather drier mainly have rotary toggling dryer and horizontal toggling dryer.Tradition
Leather drier dry heat needed for leather, leather drying using the generation such as electric heater unit, combustion gas or coal-fired hot-blast stove
Required temperature is higher, therefore the energy consumption of leather drier is all higher, but significant portion of heat in the drying process
As steam exhaust is directly discharged so that most heat is all disposable, not only can cause dirt to environment
Dye, it is not environmentally friendly enough, and energy consumption pressure is increased, cause the cost of leather drying to raise.Secondly, can be generated when drying substantial amounts of
Water, processing of the existing drying machine to this part water be not proper, easily causes pollution and the wasting of resources, this is those skilled in the art
Urgent problem to be solved.
Utility model content
The purpose of this utility model is above mentioned problem be present for existing technology, it is proposed that a kind of saffian leather drying
Machine, for solving the problems, such as the energy waste during leather drying.
The purpose of this utility model can be realized by following technical proposal：
Saffian leather drying machine, including frame, hothouse, conveying mechanism and thermal source, hothouse are erected in frame, conveying
Web plate is installed, leather, which is unfolded, to be fixed on web plate in mechanism；Hothouse includes interior chamber body and insulated enclosure, thermally insulating housing
Body is surrounded on interior chamber body, and interior chamber body is fixedly provided with coaming plate, and interior chamber body is separated by coaming plate defines heat supply chamber and drying
Chamber, conveying mechanism wear drying chamber；The bottom of coaming plate offers the passage at multigroup interval, and heat supply chamber and drying chamber pass through ventilation
Hole connects, and thermal source connection heat supply chamber, the hot gas of thermal source generation converges at heat supply intracavitary and can be discharged into by passage in drying chamber；
The inwall of drying chamber is fixed with longitudinal heat absorption aluminium sheet；The saffian leather with drying machine also include heat recovery pipe, backheat pipeline and
Waste heat air duct, heat recovery pipe are arranged between insulated enclosure and interior chamber body, heat recovery pipe ring around and be fixed on interior room
The outer wall of body, interior chamber body have exhaust outlet, and the entrance point of heat recovery pipe is connected on exhaust outlet, and the port of export of heat recovery pipe is worn
If insulated enclosure；Waste heat air duct interior and in conveying mechanism lower section, air outlet of waste heat air duct located at drying chamber
Upward and toward the lower surface of leather；Backheat pipeline connects heat recovery pipe and waste heat air duct, on backheat pipeline successively
The circulating fan recycled provided with dehumidifier and by waste heat gas feeding waste heat air duct.
In above-mentioned saffian leather drying machine, heat supply intracavitary is provided with polylith baffle plate, and one is mounted on each baffle plate
Cylinder, the bottom of coaming plate are slidably mounted with polylith cover plate, and cover plate, which can cover, sets passage, and the cylinder push-rod of cylinder passes through company
Extension bar is connected with cover plate.
In above-mentioned saffian leather drying machine, multiple breeze fans are installed at the top of heat supply chamber, breeze fan goes out
Air port is down.
In above-mentioned saffian leather drying machine, thermal source is electric boiling plate, and thermal source is fixed on heat supply intracavitary, and thermal source is in and sent
The lower section of wind blower fan.
In above-mentioned saffian leather drying machine, thermal source is heating furnace, and thermal source is in outside hothouse, thermal source connection heat supply
Pipe, heat supply intracavitary are provided with distribution heat pipe, and distribution heat pipe has spaced multiple outlets, and heating tube penetrates heat supply chamber and distribution heat pipe
Import be connected, distribution heat pipe is fixed on the lower section of breeze fan.
In above-mentioned saffian leather drying machine, the body of heat recovery pipe is made up of plane tube sheet and curved tube sheet, is put down
Facial canal plate is close to the outer wall of interior chamber body, and the inwall of curved tube sheet is zigzag.
In above-mentioned saffian leather drying machine, heat recovery pipe includes multistage longitudinal direction body, adjacent two sections of longitudinal bodys
Upper end tilt upward and be connected to form linkage section, the lower end of adjacent two sections of longitudinal bodys is connected to form lower connection diagonally downward
Section, upper linkage section and lower linkage section be spaced apart successively, is additionally provided with drainpipe between insulated enclosure and interior chamber body, at drainpipe
In the lower section of heat recovery pipe, the lower linkage section of heat recovery pipe offers discharge outlet, the discharge outlet and drainpipe of lower linkage section
It is connected；The lower section of hothouse is provided with dust-collecting bucket, the outlet connection dust-collecting bucket of drainpipe.
In above-mentioned saffian leather drying machine, multiple water receiving tanks to lower recess, water receiving tank are formed on the bottom of interior chamber body
Center offer discharge outlet, the discharge outlet of water receiving tank is connected with drainpipe.
Compared with prior art, the technical program has the advantage that：
Heat recovery pipe is set to be used to discharge the steam with heat between insulated enclosure and interior chamber body, due to heat
Recovery tube is attached on the outer wall of interior chamber body, and heat can be directly passed to interior chamber body by heat recovery pipe, makes the heat of discharge
Amount just can act on drying chamber during discharge, and the first order for realizing the heat in discharge steam recycles；Its
After secondary discharge steam is dehumidified by dehumidifier to moisture, it is sent into by circulating fan in waste heat air duct, so as to return to drying
The lower surface of leather is acted in chamber, the second level for realizing the heat in discharge steam recycles, and realizes filling for the energy
Divide and utilize, beneficial to reduction energy consumption, reduce production cost；Gas in period drying chamber, which realizes, to be circulated, hot beneficial to realizing
Gas fully contacts with leather, also takes away moisture during gas circulating flow, avoids moisture accumulation in hothouse, be beneficial to
Improve dry mass.
Brief description of the drawings
Fig. 1 is the structural representation of saffian leather drying machine of the present utility model.
Fig. 2 is the schematic cross-section of the heat recovery pipe of saffian leather drying machine of the present utility model.
Fig. 3 is the structural representation of the heat recovery pipe of saffian leather drying machine of the present utility model.
In figure, 1, frame；2nd, hothouse；3rd, conveying mechanism；4th, thermal source；5th, web plate；6th, interior chamber body；7th, insulated enclosure；
8th, coaming plate；9th, heat supply chamber；10th, drying chamber；11st, passage；12nd, absorb heat aluminium sheet；13rd, heat recovery pipe；14th, backheat pipeline；15、
Waste heat air duct；16th, exhaust outlet；17th, dehumidifier；18th, circulating fan；19th, baffle plate；20th, cylinder；21st, cover plate；22nd, connecting rod；
23rd, breeze fan；24th, heating tube；25th, heat pipe is distributed；26th, plane tube sheet；27th, curved tube sheet；28th, longitudinal body；29th, upper company
Connect section；30th, lower linkage section；31st, drainpipe；32nd, dust-collecting bucket；33rd, water receiving tank.
Embodiment
It is specific embodiment of the utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
As shown in Figure 1 to Figure 3, the utility model provides a kind of saffian leather drying machine, including frame 1, hothouse 2, defeated
Mechanism 3 and thermal source 4 are sent, hothouse 2 is erected in frame 1, and conveying mechanism 3 is arranged in frame 1, and conveying mechanism 3 is along frame 1
Extend and wear hothouse 2, web plate 5 is installed on conveying mechanism 3, saffian leather, which is unfolded, to be fixed on web plate 5, saffian leather quilt
Conveying mechanism 3 is conveyed into hothouse 2 and dried, and wherein conveying mechanism 3 is using the defeated of existing toggling dryer
Structure is sent, is not emphasis of the present utility model, does not make specifically to deploy.
Hothouse 2 includes interior chamber body 6 and insulated enclosure 7, and insulated enclosure 7 is surrounded on interior chamber body 6, insulated enclosure 7
For heat-insulated, play a part of preventing that heat scatters and disappears and anti-scald, insulated enclosure 7 are fixedly linked and formed with interior chamber body 6
Gap.Interior chamber body 6 is fixedly provided with coaming plate 8, and coaming plate 8 and the top of interior chamber body 6 are mutually fixed, and interior chamber body 6 is separated by coaming plate 8
Heat supply chamber 9 and drying chamber 10 are defined, heat supply chamber 9 is in the top of drying chamber 10, and drying chamber 10 has to come in and go out for conveying mechanism 3
Opening and outlet, conveying mechanism 3 wear drying chamber 10, temperature sensor and humidity sensor are provided with drying chamber 10 (in figure
Do not show).The bottom of coaming plate 8 offers the passage 11 at multigroup interval, and heat supply chamber 9 is connected with drying chamber 10 by passage 11,
Thermal source 4 connects heat supply chamber 9, and the hot gas that thermal source 4 generates converges in heat supply chamber 9 and can be discharged into drying chamber 10 by passage 11
In, the hot gas that thermal source 4 generates first is well mixed in heat supply chamber 9, is then drained into drying chamber 10 and is acted on leather, makes leather
Each position can be acted on by same amount of hot gas simultaneously, that is, realize that leather is uniformly dried.The inwall of drying chamber 10 is fixed with
The heat absorption aluminium sheet 12 of longitudinal direction, the arrangement of heat absorption aluminium sheet 12 compartment of terrain, the heat absorption heat absorptivity of aluminium sheet 12 is good, can be beneficial to accumulation heat, make
Drying chamber 10 keeps heating status.
It is noted that the saffian leather also includes heat recovery pipe 13, backheat pipeline 14 and waste heat air feed with drying machine
Pipe 15, wherein heat recovery pipe 13 are embedded between insulated enclosure 7 and interior chamber body 6, and heat recovery pipe 13 surround and is fixed on
The outer wall of interior chamber body 6, interior chamber body 6 have exhaust outlet 16, and exhaust outlet 16 is opened in the side of coaming plate 8, coaming plate 8 and interior chamber body 6
Air exhaust passage is formed between side wall, the entrance point of heat recovery pipe 13 is connected on exhaust outlet 16, the port of export of heat recovery pipe 13
Wear insulated enclosure 7, during leather drying, the steam with heat ascends into air exhaust passage, and is discharged into heat from exhaust outlet 16
Measure recovery tube 13.Heat recovery pipe 13 is applied not only to steam of the discharge with heat, and because heat recovery pipe 13 is to attach
On the outer wall of interior chamber body 6, heat can be directly passed to interior chamber body 6 by heat recovery pipe 13, wherein being fixed on drying chamber 10
Inwall on heat absorption aluminium sheet 12 can not only absorb the heat being discharged into by heat supply chamber 9, and heat recovery pipe 13 can be absorbed
The heat of transmission, so as to further promote whole drying chamber 10 to be in uniform heating status, that is, the heat discharged is in discharge
During just can act on drying chamber 10, realize discharge steam in heat the first order recycle.
For waste heat air duct 15 in drying chamber 10, waste heat air duct 15 is in the lower section of conveying mechanism 3, waste heat air duct
15 can be fixed in frame 1 or in interior chamber body 6, and the air outlet of waste heat air duct 15 is upward and toward the following table of leather
Face；Backheat pipeline 14 connects heat recovery pipe 13 and waste heat air duct 15, and dehumidifier 17 is sequentially provided with backheat pipeline 14 and is incited somebody to action
Waste heat gas is sent into the circulating fan 18 that waste heat air duct 15 is recycled.Steam in drying chamber 10 is via heat recovery
Pipe 13 is discharged, and after being dehumidified by dehumidifier 17 to moisture, is sent into by circulating fan 18 in waste heat air duct 15, so as to return
The lower surface of leather is acted on into drying chamber 10 and from the lower section air intake of conveying mechanism 3, realizes the heat in discharge steam
The second level recycle.Gas in period drying chamber 10, which realizes, to be circulated, beneficial to realizing the abundant of hot gas and leather
Contact, moisture is also taken away, avoid moisture accumulation in hothouse 2 during gas circulating flow.In addition, what thermal source 4 provided
Hot gas directly acts on the upper surface of leather, after waste heat gas returns to drying chamber 10, acts on the lower surface of leather, make leather by
Drying is dried to fully comprehensive.
Selectively, polylith baffle plate 19 is provided with heat supply chamber 9, bearing of trend compartment of terrain of the baffle plate 19 along heat supply chamber 9 is erected
Stand on coaming plate 8, be mounted on a cylinder 20 on each baffle plate 19, the upper base surface of coaming plate 8 is slidably mounted with more
Block cover plate 21, cover plate 21, which can cover, sets passage 11, and the corresponding cylinder 20 of one piece of cover plate 21, the cylinder 20 of cylinder 20 push away
Bar is connected by connecting rod 22 with cover plate 21, and cover plate 21 enters line slip under the driving of cylinder 20, so as to correspondingly open ventilation
Hole 11.The bottom outside of coaming plate 8 is provided with the inductor of multiple sensing leather inputs, and the lower section of each cover plate 21 is accordingly provided with
One inductor, cylinder 20 are controlled by control system, inductor communication associated controls.When leather is transported to corresponding position
When putting, inductor senses, and signal is fed back into control system, and control system drives corresponding cylinder 20 to promote cover plate 21
To open corresponding passage 11, the hot gas in heat supply chamber 9 is set targetedly to act on leather surface, and in no leather
Position, the lid of cover plate 21 set passage 11, avoid heat from unnecessarily scattering and disappearing.
Further, the top of heat supply chamber 9 is provided with multiple breeze fans 23, and the air inlet connection of breeze fan 23 is outside
Hot gas dispatch caused by thermal source 4 is entered drying chamber 10 by cold air, the air-out mouth down of breeze fan 23, breeze fan 23.
Selectively, thermal source 4 is electric boiling plate, and thermal source 4 is fixed in heat supply chamber 9, and thermal source 4 is erected on baffle plate 19, heat
Source 4 is in the lower section of breeze fan 23.
Selectively, thermal source 4 is heating furnace, and thermal source 4 is in outside hothouse 2, the connection heating tube 24 of thermal source 4, in heat supply chamber 9
Provided with distribution heat pipe 25, distribution heat pipe 25 is in reciprocally bending shape, and distribution heat pipe 25 is erected on baffle plate 19, and distribution heat pipe 25 has
Multiple outlets at interval, heating tube 24 penetrate import of the heat supply chamber 9 with distributing heat pipe 25 and are connected, and distribution heat pipe 25, which is fixed on, to be sent
The lower section of wind blower fan 23.The hot gas of heating furnace generation is input to distribution heat pipe 25 by heating tube 24, from going out for distribution heat pipe 25
Mouth is spread in heat supply chamber 9, and drying chamber 10 is delivered into via breeze fan 23.
The body of heat recovery pipe 13 is made up of plane tube sheet 26 and curved tube sheet 27, and the thickness of plane tube sheet 26 is less than song
The thickness of facial canal plate 27, plane tube sheet 26 are close to the outer wall of interior chamber body 6 so that heat recovery pipe 13 fully connects with interior chamber body 6
Touching and conducted heat, the inwall of curved tube sheet 27 is zigzag, after steam is by heat recovery pipe 13, a part of steam in steam
It can be attached on the inwall of heat recovery pipe 13.
Heat recovery pipe 13 includes multistage longitudinal direction body 28, and the upper end of adjacent two sections of longitudinal bodys 28 tilts upward connected shape
Into upper linkage section 29, the lower end of adjacent two sections of longitudinal bodys 28 is connected to form lower linkage section 30, the upper He of linkage section 29 diagonally downward
Lower linkage section 30 is spaced apart successively, i.e., heat recovery pipe 13 is in reciprocally bending shape, between insulated enclosure 7 and interior chamber body 6 also
Provided with drainpipe 31, drainpipe 31 is in the lower section of heat recovery pipe 13, the row of offering of lower linkage section 30 of heat recovery pipe 13
The mouth of a river, the discharge outlet of lower linkage section 30 are connected with drainpipe 31；The lower section of hothouse 2 is provided with dust-collecting bucket 32, and drainpipe 31 goes out
Mouthful connection dust-collecting bucket 32, can drop to discharge outlet downwards, and flow into and arrange from discharge outlet after the steam liquefaction in heat recovery pipe 13
Water pipe 31, dust-collecting bucket 32 is expelled to by drainpipe 31.
Multiple water receiving tanks 33 to lower recess are formed on the bottom of interior chamber body 6, and the center of water receiving tank 33 offers discharge outlet, connect
The discharge outlet of tank 33 is connected with drainpipe 31.Drop in water receiving tank 33, and be discharged into after steam liquefaction in drying chamber 10
In water pipe 31.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Although frame 1 has more been used herein；Hothouse 2；Conveying mechanism 3；Thermal source 4；Web plate 5；Interior chamber body 6；It is heat-insulated
Shell body 7；Coaming plate 8；Heat supply chamber 9；Drying chamber 10；Passage 11；Absorb heat aluminium sheet 12；Heat recovery pipe 13；Backheat pipeline 14；It is remaining
Hot air duct 15；Exhaust outlet 16；Dehumidifier 17；Circulating fan 18；Baffle plate 19；Cylinder 20；Cover plate 21；Connecting rod 22；Air-supply wind
Machine 23；Heating tube 24；Distribute heat pipe 25；Plane tube sheet 26；Curved tube sheet 27；Longitudinal body 28；Upper linkage section 29；Lower linkage section
30；Drainpipe 31；Dust-collecting bucket 32；The grade term of water receiving tank 33, but it is not precluded from the possibility using other terms.Use these arts
Language is used for the purpose of more easily describing and explaining essence of the present utility model；It is construed as any additional limitation
All disagreed with the utility model spirit.
Claims (8)
1. saffian leather drying machine, including frame, hothouse, conveying mechanism and thermal source, it is characterised in that hothouse is erected at machine
On frame, web plate is installed on conveying mechanism, leather, which is unfolded, to be fixed on web plate；Hothouse includes interior chamber body and thermally insulating housing
Body, insulated enclosure are surrounded on interior chamber body, and interior chamber body is fixedly provided with coaming plate, and interior chamber body is separated by coaming plate defines heat supply
Chamber and drying chamber, conveying mechanism wear drying chamber；The bottom of coaming plate offers the passage at multigroup interval, heat supply chamber and drying chamber
Connected by passage, thermal source connection heat supply chamber, the hot gas of thermal source generation converges at heat supply intracavitary and can be discharged into by passage
In drying chamber；The inwall of drying chamber is fixed with longitudinal heat absorption aluminium sheet；The saffian leather also includes heat recovery pipe with drying machine, returned
Pipe line and waste heat air duct, heat recovery pipe are arranged between insulated enclosure and interior chamber body, heat recovery pipe ring around and it is solid
Due to the outer wall of interior chamber body, interior chamber body has exhaust outlet, and the entrance point of heat recovery pipe is connected on exhaust outlet, heat recovery pipe
The port of export wears insulated enclosure；Waste heat air duct interior and in conveying mechanism lower section, waste heat air duct located at drying chamber
Air outlet upward and toward the lower surface of leather；Backheat pipeline connects heat recovery pipe and waste heat air duct, product heat cal rod
Dehumidifier and the circulating fan for being recycled waste heat gas feeding waste heat air duct are sequentially provided with road.
2. saffian leather drying machine according to claim 1, it is characterised in that heat supply intracavitary is provided with polylith baffle plate, each
A cylinder is mounted on baffle plate, the bottom of coaming plate is slidably mounted with polylith cover plate, and cover plate, which can cover, sets passage, gas
The cylinder push-rod of cylinder is connected by connecting rod with cover plate.
3. saffian leather drying machine according to claim 1, it is characterised in that multiple air-supplies are provided with the top of heat supply chamber
Blower fan, the air-out mouth down of breeze fan.
4. saffian leather drying machine according to claim 3, it is characterised in that thermal source is electric boiling plate, and thermal source is fixed on
Heat supply intracavitary, thermal source are in the lower section of breeze fan.
5. saffian leather drying machine according to claim 3, it is characterised in that thermal source is heating furnace, and thermal source is in drying
Outdoor, thermal source connection heating tube, heat supply intracavitary are provided with distribution heat pipe, and distribution heat pipe has spaced multiple outlets, and heating tube is worn
Enter import of the heat supply chamber with distributing heat pipe to be connected, distribution heat pipe is fixed on the lower section of breeze fan.
6. saffian leather drying machine according to claim 1, it is characterised in that the body of heat recovery pipe is by plane tube sheet
Formed with curved tube sheet, plane tube sheet is close to the outer wall of interior chamber body, and the inwall of curved tube sheet is zigzag.
7. the saffian leather drying machine according to claim 1 or 6, it is characterised in that heat recovery pipe includes multistage longitudinal direction
Body, the upper end of adjacent two sections of longitudinal bodys, which tilts upward, is connected to form linkage section, and the lower end of adjacent two sections of longitudinal bodys is inclined
Lower linkage section is connected to form obliquely, and upper linkage section and lower linkage section are spaced apart successively, between insulated enclosure and interior chamber body
Drainpipe is additionally provided with, drainpipe is in the lower section of heat recovery pipe, and the lower linkage section of heat recovery pipe offers discharge outlet, lower company
The discharge outlet for connecing section is connected with drainpipe；The lower section of hothouse is provided with dust-collecting bucket, the outlet connection dust-collecting bucket of drainpipe.
8. saffian leather drying machine according to claim 7, it is characterised in that the bottom of interior chamber body forms multiple to recessed
Sunken water receiving tank, the center of water receiving tank offer discharge outlet, and the discharge outlet of water receiving tank is connected with drainpipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720717373.XU CN206858594U (en) | 2017-06-20 | 2017-06-20 | Saffian leather drying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720717373.XU CN206858594U (en) | 2017-06-20 | 2017-06-20 | Saffian leather drying machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206858594U true CN206858594U (en) | 2018-01-09 |
Family
ID=60826905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720717373.XU Expired - Fee Related CN206858594U (en) | 2017-06-20 | 2017-06-20 | Saffian leather drying machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206858594U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108441586A (en) * | 2018-02-07 | 2018-08-24 | 胡和萍 | A kind of drying unit for leather surface |
-
2017
- 2017-06-20 CN CN201720717373.XU patent/CN206858594U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108441586A (en) * | 2018-02-07 | 2018-08-24 | 胡和萍 | A kind of drying unit for leather surface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180109 Termination date: 20200620 |