CN106839442A - Two kinds of mode of heating constant temperature automatic circulation devices - Google Patents
Two kinds of mode of heating constant temperature automatic circulation devices Download PDFInfo
- Publication number
- CN106839442A CN106839442A CN201510877167.0A CN201510877167A CN106839442A CN 106839442 A CN106839442 A CN 106839442A CN 201510877167 A CN201510877167 A CN 201510877167A CN 106839442 A CN106839442 A CN 106839442A
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- CN
- China
- Prior art keywords
- liquid
- spindle nose
- inner sleeve
- elbow
- drum
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C15/00—Apparatus for chemical treatment or washing of hides, skins, or leather
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
Abstract
The invention discloses two kinds of mode of heating constant temperature automatic circulation devices, including rotation liquid level automatic rising device, swivel joint, liquid circulation lines, temperature control sensor, steam heating control device, electric heating control device and valve composition, it is characterised in that：Rotary drum rouses internal rotation liquid level automatic rising device, the internal liquid level of drum is raised, elbow outflow drum body of the liquid from liquid storage cylinder, the rotated joint of spindle nose inner sleeve, influent circulating line, the liquid circulation lines other end leads to the feed inlet and outlet of bulging body front end, and the internal portion of drum is flowed into by feed inlet and outlet from the liquid of liquid circulation lines outflow；The height of the fluid pipeline of its rotation liquid level automatic rising device is higher than spindle nose inner sleeve center and the elbow centre-height of swivel joint, the elbow centre-height of spindle nose inner sleeve and swivel joint is higher than the liquid circulation lines centre-height in feed inlet and outlet, using the principle of fluid connection pressure differential, the purpose of liquid power-free automatic cycle is realized.The present invention has simple structure, easy to operate, practical function high degree of automation, safe and reliable, and then makes to rouse internal liquid heating and thermostatic.
Description
Technical field
The present invention relates to a kind of liquid circulating apparatus of horizontal spiral revolving drum, two kinds of mode of heating constant temperature automatic circulation devices of particularly a kind of horizontal spiral revolving drum.
Background technology
Common horizontal spiral revolving drum only has the simple clear effect rubbed, clean, especially the heating of liquid and it is even more during temperature adjustment and is difficult to operate, when need to improve rotary drum and rousing internal fluid temperature, a number of hot water will be in vivo added to drum, heat water more and add cold water reduction temperature again, two is that such hot water, cold water add to add, the ratio and the concentration of material of skin or leather and liquid are changed, so that many drums for making time skin or the environment residing for leather are different and the inconsistent of quality and style occur, the competitiveness of skin or leather is reduced.More long additionally, due to horizontal spiral revolving drum drum body, the concentration of front and rear liquid, temperature more or less have differences, and also result in the difference on skin or leather quality.CN101760571B discloses a kind of horizontal spiral revolving drum of carrying liqs EGR, a swivel joint is respectively mounted in spindle nose and drum body rear end, and be connected pass through liquid-transport pipe-line, pump, temp probe and the steam joint of skin liquid circulation power are installed on the liquid-transport pipe-line.Operation is circulated by the pump liquid internal to drum, so that the technic index such as fluid temperature that can be easily internal to drum is detected, controlled.The above technology is made to rouse internal liquid bulk temperature constant temperature and is not provided specific guidance program for how to be controlled to liquid power-free automatic cycle, using steam or the heating of electric two ways and automatic constant-temperature.
The content of the invention
The purpose of the present invention is in order to solve weak point of the prior art, controlled there is provided a kind of simple structure, easy to operate, liquid power-free automatic cycle, using steam or electric two ways heating and automatic constant-temperature, and then make to rouse internal liquid heating and thermostatic.
In order to solve the above technical problems, the present invention is adopted the following technical scheme that：Two kinds of mode of heating constant temperature automatic circulation devices, including rotation liquid level automatic rising device, swivel joint, liquid circulation lines, temperature control sensor, steam heating control device, electric heating control device and valve composition, it is characterised in that：Rotary drum rouses internal rotation liquid level automatic rising device, the internal liquid level of drum is raised, elbow outflow drum body of the liquid from liquid storage cylinder, the rotated joint of spindle nose inner sleeve, influent circulating line, the liquid circulation lines other end leads to the feed inlet and outlet of bulging body front end, and the internal portion of drum is flowed into by feed inlet and outlet from the liquid of liquid circulation lines outflow；The height of the fluid pipeline of its rotation liquid level automatic rising device is higher than spindle nose inner sleeve center and the elbow centre-height of swivel joint, the elbow centre-height of spindle nose inner sleeve and swivel joint is higher than the liquid circulation lines centre-height in feed inlet and outlet, using the principle of fluid connection pressure differential, the purpose of liquid power-free automatic cycle is realized.
Described liquid storage cylinder is provided with liquid storage cylinder flange, and liquid storage cylinder lid, sealing gasket are by uniform bolt connection in together.
The elbow of described swivel joint is connected with liquid circulation lines by connector.The steam heating control device of installation connected in series, electric heating control device and valve on liquid circulation lines, are installed on temperature control sensor on liquid circulation lines, and the front end of liquid circulation lines is provided with liquid in-out mouthful valve.
Described rotation liquid level automatic rising device includes：The internal bulging body dividing plate of drum, cone plate, fluid passage, liquid storage cylinder, spindle nose inner sleeve composition, the cone plate and 3 fluid passages of uniform 3 of drum body Internal back end, 1/3 part of 3 cone plates is provided with colored hole, the colored hole side of 3 cone plates is connected with the dividing plate of 3 fluid passages, 3 cavitys of closing of composition, 3 fluid passages are all communicated with liquid storage cylinder, liquid storage cylinder is located in the middle of drum body Internal back end, drum body is welded in one with one end of spindle nose inner sleeve, and the center at liquid storage cylinder center, the center of drum body rear end and spindle nose inner sleeve is on an axis.In rotary course, the internal material of drum body dividing plate drive drum and liquid are promoted drum body to cone plate direction, and liquid rouses body by the colored hole influent passage and liquid storage cylinder on cone plate through the elbow outflow of spindle nose inner sleeve and swivel joint；Its fluid pipeline is highly higher than spindle nose inner sleeve center and the elbow centre-height of swivel joint.
Described swivel joint includes：Spindle nose, spindle nose inner sleeve, sealing ring, gland and elbow composition, the inside of spindle nose is enclosed within spindle nose, in one end insertion gland, the endoporus of sealing ring to spindle nose inner sleeve of elbow, gland, sealing ring, elbow and spindle nose inner sleeve, spindle nose are connected together by uniform bolt.The center at the center, the center of spindle nose inner sleeve and elbow of spindle nose is on an axis.
Described steam heating control device includes：Cone cavity, steam inlet pipe road, electromagnetism steam valve, Drainage pipe and draining valve composition, steam inlet pipe road and electromagnetism steam valve are located at the top of cone cavity, Drainage pipe and draining valve are located at the lower section of cone cavity, steam enters cone cavity by electromagnetism steam valve, liquid is heated, simultaneously under the promotion of steam pressure, the liquid flow velocity in liquid circulation lines can be accelerated.
Described electric heating control device includes：Electric heater, electric heater shell and connection box set are into electric heater shell closes electric heater, plays a protective role, and electric heater shell upper is provided with terminal box, and described electric heater can be electromagnetic induction heater, or electrically heated rod, or electric boiling plate.
Using above-mentioned technical proposal, when flat spin rotary drum rouse body when needing to liquid circulation, open the valve on liquid circulation lines, drum body is in rotary course, drum body dividing plate drives the internal material of drum and liquid to be promoted to cone plate direction, liquid is by the colored hole influent passage and liquid storage cylinder on cone plate, through the elbow outflow drum body of spindle nose inner sleeve and swivel joint, influent circulating line, then flow into the feed inlet and outlet of bulging body front end, liquid flows into the internal portion of drum, liquid ceaselessly repetitive cycling flowing by feed inlet and outlet.
When needing to heat liquid and constant temperature is remained on, according to user's working condition, steam heating control device or electric heating control device may be selected.
When steam heating control device is selected, open temperature controller, design temperature hold in range value, when lower limit of the temperature controller display temperature control sensor detection numerical value less than temperature controller setting, electromagnetism steam valve is powered, and electromagnetism steam valve is opened, and steam is heated into cone cavity to liquid, simultaneously under the promotion of steam pressure, flowing velocity of the liquid in liquid circulation lines can be accelerated.When temperature controller display temperature control sensor detection numerical value sets higher limit beyond temperature controller, electromagnetism steam valve power-off, electromagnetism steam valve is closed, and steam can not be heated into cone cavity to liquid.When lower limit of the temperature controller display temperature control sensor detection numerical value less than setting, repeat above-mentioned action and liquid is heated, allow the internal liquid of drum to be maintained in design temperature value range.
When electric heating control device is selected, opening temperature controller, design temperature hold in range value, when lower limit of the temperature controller display temperature control sensor detection numerical value less than temperature controller setting, electric heater energization starts to heat liquid.When temperature controller display temperature control sensor detection numerical value sets higher limit beyond temperature controller, electric heater power-off, it is impossible to heated to liquid.When lower limit of the temperature controller display temperature control sensor detection numerical value less than setting, repeat above-mentioned action and liquid is heated, repeat above-mentioned action and liquid is heated, allow liquid to be maintained in design temperature value range.
When the liquid for needing to clear up in steam heater cone cavity, draining valve is opened, liquid is discharged outside cone cavity by Drainage pipe through draining valve.
The present invention also has simple structure, easy to operate, practical function high degree of automation, safe and reliable, and then makes to rouse internal liquid heating and thermostatic.
Brief description of the drawings
Fig. 1 is structural representation of the invention（Arrow represents that liquid is flowed in figure）.
Fig. 2 is the structural representation that rotation liquid level automatic rising device of the invention, swivel joint etc. are connected（Arrow represents that liquid is flowed in figure）.
Fig. 3 is the rotation liquid level automatic rising device structural representation that rotary drum of the invention is roused in internal portion（Arrow represents that liquid is flowed in figure）.
Specific embodiment
Embodiment：As shown in Figure 1, Figure 2, Figure 3 shows, two kinds of mode of heatings constant temperature automatic circulation device of the invention, constituted including rotation liquid level automatic rising device, swivel joint, liquid circulation lines 16, temperature control sensor 8, steam heating control device, electric heating control device and valve 19, it is characterised in that：Rotary drum rouses internal rotation liquid level automatic rising device, the internal liquid level of drum is raised, elbow 5 outflow drum body 1 of the liquid from liquid storage cylinder 24, the rotated joint of spindle nose inner sleeve 21, influent circulating line 16, the other end of liquid circulation lines 16 leads to the feed inlet and outlet 20 of the front end of bulging body 1, is flowed into by feed inlet and outlet 20 inside drum body 1 from the liquid of the outflow of liquid circulation lines 16；The height of the fluid pipeline 28 of its rotation liquid level automatic rising device is higher than the center of spindle nose inner sleeve 21 and the centre-height of elbow 5 of swivel joint, the centre-height of elbow 5 of spindle nose inner sleeve 21 and swivel joint is higher than the centre-height of liquid circulation lines 16 in feed inlet and outlet 20, using the principle of fluid connection pressure differential, the purpose of liquid power-free automatic cycle is realized.
The elbow 5 of described swivel joint is connected with liquid circulation lines 16 by connector 6, the steam heating control device of installation connected in series, electric heating control device and valve 19 on liquid circulation lines 16, temperature control sensor 8 on liquid circulation lines 16 is installed on, the front end of liquid circulation lines 16 is provided with liquid in-out mouthful valve 9.
Described rotation liquid level automatic rising device includes：The internal bulging body dividing plate 30 of drum, cone plate 29, fluid passage 28, liquid storage cylinder 24, spindle nose inner sleeve 21 is constituted, the cone plate 29 and 3 fluid passages 28 of uniform 3 of drum body 1 Internal back end, 1/3 part of 3 cone plates 29 is provided with colored hole 23, the side of colored hole 23 of 3 cone plates 29 is connected with the dividing plate of 3 fluid passages 28, 3 cavitys of closing of composition, 3 fluid passages 28 are all communicated with liquid storage cylinder 24, liquid storage cylinder 24 is located in the middle of the drum Internal back end of body 1, drum body 1 is welded in one with one end of spindle nose inner sleeve 21, the center of liquid storage cylinder 24, the center of drum body 1 rear end and the center of spindle nose inner sleeve 21 are on an axis.In rotary course, material and liquid in the drive drum body 1 of drum body dividing plate 30 are promoted drum body 1 to the direction of cone plate 29, and liquid rouses body 1 by the influent passage 28 of colored hole 23 and liquid storage cylinder 24 on cone plate 29 through the outflow of elbow 5 of spindle nose inner sleeve 21 and swivel joint；Its height of fluid pipeline 28 is higher than the center of spindle nose inner sleeve 21 and the centre-height of elbow 5 of swivel joint.
Described liquid storage cylinder 24 is provided with liquid storage cylinder flange 27, and liquid storage cylinder lid 25, sealing gasket 26 are by uniform bolt connection in together.
Described swivel joint includes：Spindle nose 3, spindle nose inner sleeve 21, sealing ring 22, gland 4 and elbow 5 are constituted, spindle nose inner sleeve 21 is in the inside of spindle nose 3, in one end insertion gland 4, the endoporus of sealing ring 22 to spindle nose inner sleeve 21 of elbow 5, gland 4, sealing ring 22, elbow 5 and spindle nose inner sleeve 21, spindle nose 3 are connected together by uniform bolt.The center at the center, the center of spindle nose inner sleeve 21 and elbow 5 of spindle nose 3 is on an axis.
Described steam heating control device includes：Cone cavity 11, steam inlet pipe road 15, electromagnetism steam valve 14, Drainage pipe 13 and draining valve 12 are constituted, steam inlet pipe road 15 and electromagnetism steam valve 14 are located at the top of cone cavity 11, Drainage pipe 13 and draining valve 12 are located at the lower section of cone cavity 11, steam enters cone cavity 11 by electromagnetism steam valve 14, liquid is heated, simultaneously under the promotion of steam pressure, the liquid flow velocity in the road of liquid circulating pipe 16 can be accelerated.
Described electric heating control device includes：Electric heater, electric heater shell 17 and terminal box 18 are constituted, and electric heater shell 17 closes electric heater, play a part of protection, and electric heater shell upper is provided with terminal box 18.Described electric heater can be electromagnetic induction heater, or electrically heated rod, or electric boiling plate.
Such as Fig. 1, Fig. 2, shown in Fig. 3, when flat spin rotary drum rouse body when needing to liquid circulation, open the valve 19 on liquid circulation lines 16, drum body 1 is in rotary course, drum body dividing plate 30 drives material and liquid in drum body 1 to be promoted to the direction of cone plate 29, liquid is by the influent passage 28 of colored hole 23 and liquid storage cylinder 24 on cone plate 29, through the outflow drum body 1 of elbow 5 of spindle nose inner sleeve 21 and swivel joint, influent circulating line 16, it is through-flow to the feed inlet and outlet 20 for rousing the front end of body 1 again, liquid is flowed into inside drum body 1 by feed inlet and outlet 20, liquid ceaselessly repetitive cycling flowing.
When needing to heat liquid and constant temperature is remained on, according to user's working condition, steam heating control device or electric heating control device may be selected.
When steam heating control device is selected, open temperature controller, design temperature hold in range value, when lower limit of the temperature controller display temperature control sensor 8 detection numerical value less than temperature controller setting, electromagnetism steam valve 14 is powered, and electromagnetism steam valve 14 is opened, and steam is heated into cone cavity 11 to liquid, simultaneously under the promotion of steam pressure, flowing velocity of the liquid in liquid circulation lines 16 can be accelerated.When temperature controller display temperature control sensor 8 detection numerical value sets higher limit beyond temperature controller, electromagnetism steam valve 14 is powered off, and electromagnetism steam valve 14 is closed, and steam can not be heated into cone cavity 11 to liquid.When temperature controller display temperature control sensor 8 detection numerical value is less than the lower limit for setting, repeats above-mentioned action and liquid is heated, allow liquid to be maintained in design temperature value range.
When the liquid in the cone cavity 11 to cleaning steam heater is needed, draining valve 12 is opened, liquid is discharged outside cone cavity 11 by Drainage pipe 13 through draining valve 12.
When electric heating control device is selected, opening temperature controller, design temperature hold in range value, when lower limit of the temperature controller display temperature control sensor 8 detection numerical value less than temperature controller setting, electric heater energization starts to heat liquid.When temperature controller display temperature control sensor 8 detection numerical value sets higher limit beyond temperature controller, electric heater power-off, it is impossible to heated to liquid.If temperature controller display temperature control sensor 8 detection numerical value is less than the lower limit for setting, repeats above-mentioned action and liquid is heated, allow liquid to be maintained in design temperature value range.
Claims (10)
1. two kinds of mode of heating constant temperature automatic circulation devices, including rotation liquid level automatic rising device, swivel joint, liquid circulation lines, temperature control sensor, steam heating control device, electric heating control device and valve composition, it is characterised in that：Rotary drum rouses internal rotation liquid level automatic rising device, the internal liquid level of drum is raised, liquid rouses body from the elbow outflow of liquid storage cylinder, the rotated joint of spindle nose inner sleeve, and influent circulating line, the feed inlet and outlet that the logical other end of liquid circulation lines leads to bulging body front end flows into the internal portion of drum.
2. two kinds of mode of heatings constant temperature automatic circulation device according to claim 1, it is characterised in that：Described rotation liquid level automatic rising device includes：The internal bulging body dividing plate of drum, cone plate, fluid passage, liquid storage cylinder, spindle nose inner sleeve composition, the cone plate and 3 fluid passages of uniform 3 of drum body Internal back end, 1/3 part of 3 cone plates is provided with colored hole, the colored hole side of 3 cone plates is connected with the dividing plate of 3 fluid passages, 3 cavitys of closing of composition, 3 fluid passages are all communicated with liquid storage cylinder, and liquid storage cylinder is located in the middle of drum body Internal back end, and drum body is welded in one with one end of spindle nose inner sleeve.
3. two kinds of mode of heatings constant temperature automatic circulation device according to claim 2, it is characterised in that：Centre-height of the height of the fluid pipeline of described rotation liquid level automatic rising device higher than the elbow at the center and swivel joint of spindle nose inner sleeve；Centre-height of the elbow centre-height of spindle nose inner sleeve and swivel joint higher than the liquid circulation lines in feed inlet and outlet；The center at liquid storage cylinder center, the center of drum body rear end and spindle nose inner sleeve is on an axis.
4. two kinds of mode of heatings constant temperature automatic circulation device according to claim 3, it is characterised in that：Described swivel joint includes：Spindle nose, spindle nose inner sleeve, sealing ring, gland and elbow composition, the inside of spindle nose is enclosed within spindle nose, in one end insertion gland, the endoporus of sealing ring to spindle nose inner sleeve of elbow, gland, sealing ring, elbow and spindle nose inner sleeve, spindle nose are connected together by uniform bolt, the center at the center, the center of spindle nose inner sleeve and elbow of spindle nose is on an axis.
5. two kinds of mode of heatings constant temperature automatic circulation device according to claim 2, it is characterised in that：Described liquid storage cylinder is provided with liquid storage cylinder flange, and liquid storage cylinder lid, sealing gasket are by uniform bolt connection in together.
6. two kinds of mode of heatings constant temperature automatic circulation device according to claim 4, it is characterised in that：The elbow of described swivel joint is connected with liquid circulation lines by connector.
7. two kinds of mode of heatings constant temperature automatic circulation device according to claim 6, it is characterised in that：The steam heating control device of installation connected in series, electric heating control device and valve on described liquid circulation lines, are installed on the temperature control sensor on liquid circulation lines, and the rear end of liquid circulation lines is provided with turnover fluid valve.
8. two kinds of mode of heatings constant temperature automatic circulation device according to claim 7, it is characterised in that：Described steam heating control device includes：Cone cavity, steam inlet pipe road, electromagnetism steam valve, Drainage pipe and draining valve composition, steam inlet pipe road and electromagnetism steam valve are located at the top of cone cavity, and Drainage pipe and draining valve are located at the lower section of cone cavity.
9. two kinds of mode of heatings constant temperature automatic circulation device according to claim 7, it is characterised in that：Described electric heating control device includes：Electric heater, electric heater shell and connection box set are into electric heater shell closes electric heater, and electric heater shell upper is provided with terminal box.
10. two kinds of mode of heatings constant temperature automatic circulation device according to claim 9, it is characterised in that：Described electric heater can be electromagnetic induction heater, or electrically heated rod, or electric boiling plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510877167.0A CN106839442A (en) | 2015-12-03 | 2015-12-03 | Two kinds of mode of heating constant temperature automatic circulation devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510877167.0A CN106839442A (en) | 2015-12-03 | 2015-12-03 | Two kinds of mode of heating constant temperature automatic circulation devices |
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| Publication Number | Publication Date |
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| CN106839442A true CN106839442A (en) | 2017-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510877167.0A Pending CN106839442A (en) | 2015-12-03 | 2015-12-03 | Two kinds of mode of heating constant temperature automatic circulation devices |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1420071A2 (en) * | 2002-11-04 | 2004-05-19 | Italprogetti Engineering S.R.L. | Drum with improved structure for processing leather or similars |
| CN200968910Y (en) * | 2006-05-09 | 2007-10-31 | 王昕勇 | Automatic cycle barrate water exiting device |
| ES2306546A1 (en) * | 2005-03-22 | 2008-11-01 | Italprogetti Engineering S.P.A. | Drum with constructive improvements suitable for the treatment, in particular, of leather, textiles or similar products in which chemical products of high aggressiveness are used. (Machine-translation by Google Translate, not legally binding) |
| CN101760571A (en) * | 2009-12-28 | 2010-06-30 | 辛集巨龙皮革机械有限公司 | Horizontal spiral revolving drum with liquid circulating device |
| CN202007234U (en) * | 2010-12-09 | 2011-10-12 | 浙江中辉皮草有限公司 | Stainless steel slanting rotating drum |
| CN104694675A (en) * | 2013-12-04 | 2015-06-10 | 张壮斗 | Novel process for manufacturing leather with simple procedures and equipment |
-
2015
- 2015-12-03 CN CN201510877167.0A patent/CN106839442A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1420071A2 (en) * | 2002-11-04 | 2004-05-19 | Italprogetti Engineering S.R.L. | Drum with improved structure for processing leather or similars |
| ES2306546A1 (en) * | 2005-03-22 | 2008-11-01 | Italprogetti Engineering S.P.A. | Drum with constructive improvements suitable for the treatment, in particular, of leather, textiles or similar products in which chemical products of high aggressiveness are used. (Machine-translation by Google Translate, not legally binding) |
| CN200968910Y (en) * | 2006-05-09 | 2007-10-31 | 王昕勇 | Automatic cycle barrate water exiting device |
| CN101760571A (en) * | 2009-12-28 | 2010-06-30 | 辛集巨龙皮革机械有限公司 | Horizontal spiral revolving drum with liquid circulating device |
| CN202007234U (en) * | 2010-12-09 | 2011-10-12 | 浙江中辉皮草有限公司 | Stainless steel slanting rotating drum |
| CN104694675A (en) * | 2013-12-04 | 2015-06-10 | 张壮斗 | Novel process for manufacturing leather with simple procedures and equipment |
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Application publication date: 20170613 |
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| RJ01 | Rejection of invention patent application after publication |