CN107101083A - A kind of circulating cooling system of biomass granulation machine - Google Patents
A kind of circulating cooling system of biomass granulation machine Download PDFInfo
- Publication number
- CN107101083A CN107101083A CN201710240051.5A CN201710240051A CN107101083A CN 107101083 A CN107101083 A CN 107101083A CN 201710240051 A CN201710240051 A CN 201710240051A CN 107101083 A CN107101083 A CN 107101083A
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- Prior art keywords
- oil
- main
- hole
- feed hole
- oil outlet
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/38—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/20—Roller-and-ring machines, i.e. with roller disposed within a ring and co-operating with the inner surface of the ring
- B30B11/201—Roller-and-ring machines, i.e. with roller disposed within a ring and co-operating with the inner surface of the ring for extruding material
- B30B11/208—Roller constructions; Mounting of the rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/34—Heating or cooling presses or parts thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C37/00—Cooling of bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N19/00—Lubricant containers for use in lubricators or lubrication systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N23/00—Special adaptations of check valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/02—Arrangements for conditioning of lubricants in the lubricating system by cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2210/00—Applications
- F16N2210/14—Bearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The present invention relates to biomass granulation machine field, more particularly to a kind of circulating cooling system of biomass granulation machine.A kind of circulating cooling system of biomass granulation machine, including main shaft, roller seat, press-roller device, fuel tank, working connection structure and secondary oil channel structures；Working connection structure includes main oil-feed oil circuit, the first main fuel feed hole, the first main oil outlet, main fuel-displaced oil circuit, the second main fuel feed hole and the second main oil outlet；Secondary oil channel structures include time oil-feed oil circuit, secondary fuel feed hole and with secondary oil outlet；First main fuel feed hole is connected by pipeline with the flowline of fuel tank, and the first main oil outlet is connected by pipeline with time fuel feed hole, and secondary oil outlet is connected by pipeline with the second main fuel feed hole, and the second main oil outlet is connected by pipeline with the oil return pipe of fuel tank.The present invention is simple in construction, easy to operate, realizes cold cycling heat exchange, extends the service life of roller bearing, reduce production cost.
Description
Technical field
The present invention relates to biomass granulation machine field, more particularly to a kind of circulating cooling system of biomass granulation machine.
Background technology
In existing biological particles processing technique field, the granulator for producing biological particles is main to include by ring
Mould, provided with the pressure roller being adapted with ring mould in it, pressure roller is put by spaced roller bearing installed in roller bearing, is pressed
Roller bearing seal is provided between roller two ends and pressure roller shaft bearing sleeve, pressure roller shaft bearing sleeve is sleeved in pressure roller shaft, pressure roller shaft is installed
On main shaft disk, main shaft disk is arranged on main shaft.Operationally, exterior power is inputted from ring mould holder, rotates ring mould, main shaft
Remain stationary as, material enters between ring mould and pressure roller, ring mould and pressure roller are relatively rotated, under extruding force effect, material is by ring mould
Some nibs of upper setting are extruded into particle.
Extruded due to material, rub by high intensity, compacting room temperature is high, or even can be up to 150 DEG C, roller bearing lubrication is not
It is enough, easily cause abrasion and consume, ultimately cause scrapping for bearing, the efficiency of reduction work production increases production cost.
The content of the invention
For prior art produced problem, it is an object of the invention to provide a kind of circulating cooling of biomass granulation machine
System, the circulating cooling system is simple in construction, easy to operate, and the lubricating oil that cooled down in fuel tank can be delivered in roller bearing
Be lubricated, with roller bearing carry out heat exchange after, hot lubricating oil is pumped into from pressure roller be back to fuel tank in cool, realize
Cold cycling exchanges heat, and effectively controls the temperature of pressure roller, extends the service life of roller bearing, reduce production cost.
To reach above-mentioned purpose, technical scheme is as follows：
A kind of circulating cooling system of biomass granulation machine, including main shaft, be connected to the roller seat of main shaft upper end and be arranged on
Press-roller device on roller seat, in addition to fuel tank, the working connection structure that is arranged in the main shaft and it is arranged on the pressure roller
Secondary oil channel structures in device；The working connection structure includes main oil-feed oil circuit, the first main fuel feed hole, the first main oil outlet, master
Fuel-displaced oil circuit, the second main fuel feed hole and the second main oil outlet, the main oil-feed oil circuit are located in the main shaft along the vertical direction,
Its upper end connects the first main oil outlet, and its lower end connects the first main fuel feed hole；The fuel-displaced oil circuit of master and the main oil-feed oil circuit
It is set up in parallel, its upper end connects the second main fuel feed hole, its lower end connects the second main oil outlet；Described oil channel structures include setting
Secondary oil-feed oil circuit in press-roller device, secondary fuel feed hole with described oil-feed oil communication and with described oil-feed oil circuit company
Logical secondary oil outlet；The first main fuel feed hole is connected by pipeline with the flowline of the fuel tank, the first main oil outlet
Connected by pipeline with described fuel feed hole, described oil outlet is connected by pipeline with the described second main fuel feed hole, described
Two main oil outlets are connected by pipeline with the oil return pipe of the fuel tank.
In the above-mentioned technical solutions, circulating cooling system of the invention is simple in construction, easy to operate, in pelletization,
Cooling oil in fuel tank is through flowline oil-feed from the first main fuel feed hole, and cooling oil is by main oil-feed oil circuit and fuel-displaced from the first master
Hole is flowed out, and is being entered by Pipeline transport to secondary fuel feed hole in time oil-feed oil circuit, cooling oil enters pressure by secondary oil-feed oil circuit
It is lubricated inside roller bearing, after the roller bearing with high temperature is exchanged heat, deep fat is flowed out by pipeline from secondary oil outlet
To the second main fuel feed hole, deep fat, from the second main oil outlet outflow, fuel tank is being back to by oil return pipe by main fuel-displaced oil circuit
In, the system realizes the heat exchange between lubricating oil and roller bearing, and lubrication oil circulation is constantly lubricated and exchanged heat, prolongs
The physical life of roller bearing has been grown, production work efficiency has been improved, reduces production cost.
As the preferred of above-mentioned technical proposal, the first main fuel feed hole and the second main oil outlet are along the alignment of shafts
Radial direction is opened in the lower end of the main shaft.
As the preferred of above-mentioned technical proposal, two press-roller devices are set side by side with the roller seat.
As the preferred of above-mentioned technical proposal, the press-roller device is set in described including pressure roller shaft, pressure roller body, inner ring
Pressure roller shaft outer ring is used to accept two bearings of the pressure roller cup inner surface, some sealing rings and for sealing the bearing
Two end covers of end, the end cover accommodates the accommodating chamber of lubricating oil with pressure roller shaft formation.
As the preferred of above-mentioned technical proposal, described fuel feed hole is opened in the upper end of the pressure roller shaft, goes out for described time
Oilhole is opened on the end cover of top, and described oil-feed oil circuit is inside the pressure roller shaft, described oil-feed oil
The one end on road connects described fuel feed hole, and the other end connects the accommodating chamber.
As the preferred of above-mentioned technical proposal, it is additionally provided with the roller seat on flow divider, the flow divider and offers remittance
Discharge orifice and tap hole, the hole of confluxing are connected by pipeline with the described first main oil outlet, and the tap hole is distinguished by pipeline
Connected with described fuel feed hole.Accordingly, flow divider controls the oil inlet quantity of each press-roller device so that the oil inlet quantity phase of each device
Unanimously.
As the preferred of above-mentioned technical proposal, it is additionally provided with the roller seat in combiner valve, the combiner valve and offers remittance
Enter hole and flow concentration hole, the remittance hole is connected with described oil outlet respectively by pipeline, and the flow concentration hole passes through pipeline and institute
State the second main fuel feed hole connection.
As the preferred of above-mentioned technical proposal, the fuel tank has provided with circulation electric pump and radiator, the fuel tank
Hydraulic fluid port and oil return opening, the circulation electric pump are connected with the described first main fuel feed hole and the oil-out respectively by flowline；
The radiator is connected with the described first main oil outlet and the oil return opening respectively by oil return pipe.
The invention has the advantages that：A kind of circulating cooling system of biomass granulation machine of the present invention, the circulation
Cooling system structure is simple, easy to operate, the lubricating oil cooled down in fuel tank can be delivered in roller bearing and is lubricated,
With roller bearing carry out heat exchange after, hot lubricating oil is pumped into from pressure roller be back to fuel tank in cool, realize cold cycling and change
Heat, effectively controls the temperature of pressure roller, extends the service life of roller bearing, reduces production cost.
Brief description of the drawings
Fig. 1 is circulating cooling system structural representation of the invention；
Fig. 2 is the structural representation of fuel tank in the present invention；
Fig. 3 is cross section structure diagram of the invention.
Embodiment
The technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described implementation
Example only a part of embodiment of the invention, rather than whole embodiments.Embodiment in the present invention, ordinary skill
All other embodiment that personnel are obtained under the premise of creative work is not done, belongs to the scope of protection of the invention.
With embodiment, the present invention is described in detail below in conjunction with the accompanying drawings.
Embodiment 1：With reference to Fig. 1, Fig. 2 and Fig. 3, a kind of circulating cooling system of biomass granulation machine, including main shaft 1, company
The roller seat 2 that is connected on the upper end of main shaft 1, the press-roller device 3 being arranged on roller seat 2 including fuel tank 4, the master being arranged in main shaft 1
Oil channel structures 5, the secondary oil channel structures 6 being arranged in press-roller device 3, flowline 7, oil return pipe 8, point for being arranged on roller seat side
Stream valve 9, the circulation electric pump 11 for being arranged on the combiner valve 10 of roller seat opposite side, being arranged on fuel tank, be arranged on it is scattered on fuel tank
Hot device 12 and pump oil pipe 13.
With reference to Fig. 1, Fig. 2 and Fig. 3, working connection structure 5 includes main oil-feed oil circuit 51, the first main fuel feed hole 52, first and led out
Oilhole 53, main fuel-displaced oil circuit 54, the second main oil outlet 56 of main fuel feed hole 55 and second, main oil-feed oil circuit 51 are set along the vertical direction
In in main shaft 1, its upper end connects the first main oil outlet 53, and its lower end connects the first main fuel feed hole 52；Main fuel-displaced oil circuit 54 and master
Oil-feed oil circuit 51 is set up in parallel, and its upper end connects the second main fuel feed hole 55, and its lower end connects the second main oil outlet 56.
With reference to Fig. 1, Fig. 2 and Fig. 3, secondary oil channel structures 6 include the secondary oil-feed oil circuit 61 being arranged in press-roller device 3 and secondary
The secondary fuel feed hole 62 of the connection of oil-feed oil circuit 61 and the secondary oil outlet 63 connected with secondary oil-feed oil circuit 61；First main fuel feed hole 52 leads to
Cross pipeline to connect with the flowline 7 of fuel tank 4, the first main oil outlet 53 is connected by pipeline with time fuel feed hole 62, secondary oil outlet 63
Connected by pipeline with the second main fuel feed hole 55, the second main oil outlet 56 is connected by pipeline with the oil return pipe 8 of fuel tank 4.
With reference to Fig. 1, Fig. 2 and Fig. 3, press-roller device 3 includes pressure roller shaft 31, pressure roller body 32, inner ring and is set in pressure roller shaft 31
Outer ring be used to accepting two bearings 33 of pressure roller cup inner surface, some sealing rings 34 and for the end of sealed bearings 33 two
Individual end cover 35, end cover 35 accommodates the accommodating chamber 36 of lubricating oil with the formation of pressure roller shaft 31.
With reference to Fig. 1, Fig. 2 and Fig. 3, conflux hole 91 and tap hole 92 are offered on flow divider 9, conflux hole 91 by pipeline with
First main oil outlet 53 is connected, and tap hole 92 is connected with secondary fuel feed hole 62 respectively by pipeline.
With reference to Fig. 1, Fig. 2 and Fig. 3, remittance hole 101 and flow concentration hole 102 are offered in combiner valve 10, hole 101 is imported and passes through pipe
Road is connected with secondary oil outlet 63 respectively, and flow concentration hole 102 is connected by pipeline with the second main fuel feed hole 55.
With reference to Fig. 1, Fig. 3, radial direction of the first main oil outlet 56 of main fuel feed hole 52 and second along the center of main shaft 1 is opened in
The lower end of main shaft 1.
With reference to Fig. 1, Fig. 2, two press-roller devices 3 are set side by side with roller seat 2.
With reference to Fig. 1 and Fig. 3, secondary fuel feed hole 62 is opened in the upper end of pressure roller shaft 31, and secondary oil outlet 63 is opened in top
On end cover 35, secondary oil-feed oil circuit 61 is inside pressure roller shaft 31, one end connection time fuel feed hole 62 of secondary oil-feed oil circuit 61, separately
One end connects accommodating chamber 36.
With reference to Fig. 1, Fig. 2 and Fig. 3, fuel tank 4 has oil-out and oil return opening, and circulation electric pump 11 passes through flowline 7 and pump oil
Pipe 13 is connected with the first main fuel feed hole 52 and oil-out respectively；Radiator 12 by oil return pipe 8 respectively with the first main oil outlet
53 are connected with oil return opening.
Embodiments of the present invention are described in detail above in conjunction with accompanying drawing, but the present invention is not limited to above-mentioned reality
Apply mode, in the knowledge possessed belonging to one skilled in the relevant art, present inventive concept can also not departed from
Under the premise of various changes can be made.
Claims (8)
1. a kind of circulating cooling system of biomass granulation machine, including main shaft（1）, be connected to main shaft（1）The roller seat of upper end（2）
And it is arranged on roller seat（2）On press-roller device（3）, it is characterised in that：Also include fuel tank（4）, be arranged on the main shaft（1）
Interior working connection structure（5）And it is arranged on the press-roller device（3）Interior secondary oil channel structures（6）；The working connection structure（5）
Including main oil-feed oil circuit（51）, the first main fuel feed hole（52）, the first main oil outlet（53）, main fuel-displaced oil circuit（54）, second lead into
Oilhole（55）And the second main oil outlet（56）, the main oil-feed oil circuit（51）The main shaft is located at along the vertical direction（1）It is interior, its
Upper end connects the first main oil outlet（53）, its lower end connects the first main fuel feed hole（52）；The fuel-displaced oil circuit of master（54）With it is described
Main oil-feed oil circuit（51）It is set up in parallel, its upper end connects the second main fuel feed hole（55）, its lower end connects the second main oil outlet（56）；
Described oil channel structures（6）Including being arranged on press-roller device（3）Interior secondary oil-feed oil circuit（61）And described oil-feed oil circuit（61）
The secondary fuel feed hole of connection（62）And with described oil-feed oil circuit（61）The secondary oil outlet of connection（63）；The first main fuel feed hole
（52）Pass through pipeline and the fuel tank（4）Flowline（7）Connection, the first main oil outlet（53）Pass through pipeline and described time
Fuel feed hole（62）Connection, described oil outlet（63）Pass through pipeline and the described second main fuel feed hole（55）Connection, second master
Oil outlet（56）Pass through pipeline and the fuel tank（4）Oil return pipe（8）Connection.
2. a kind of circulating cooling system of biomass granulation machine according to claim 1, it is characterised in that：First master
Fuel feed hole（52）With the described second main oil outlet（56）Along main shaft（1）The radial direction at center is opened in the main shaft（1）Under
End.
3. a kind of circulating cooling system of biomass granulation machine according to claim 1, it is characterised in that：The roller seat
（2）On be set side by side with two press-roller devices（3）.
4. a kind of circulating cooling system of biomass granulation machine according to claim 3, it is characterised in that：The pressure roller dress
Put（3）Including pressure roller shaft（31）, pressure roller body（32）, inner ring be set in the pressure roller shaft（31）Outer ring is used to accept the pressure roller
Two bearings of cup inner surface（33）, some sealing rings（34）And for sealing the bearing（33）Two sealings of end
End cap（35）, the end cover（35）With the pressure roller shaft（31）Form the accommodating chamber for accommodating lubricating oil（36）.
5. a kind of circulating cooling system of biomass granulation machine according to claim 4, it is characterised in that：Described oil-feed
Hole（62）It is opened in the pressure roller shaft（31）Upper end, described oil outlet（63）It is opened in the end cover of top
（35）On, described oil-feed oil circuit（61）Located at the pressure roller shaft（31）Inside, described oil-feed oil circuit（61）One end connection
Described fuel feed hole（62）, the other end connection accommodating chamber（36）.
6. a kind of circulating cooling system of biomass granulation machine according to claim 1, it is characterised in that：The roller seat
（2）On be additionally provided with flow divider（9）, the flow divider（9）On offer hole of confluxing（91）And tap hole（92）, the hole of confluxing
（91）Pass through pipeline and the described first main oil outlet（53）Connection, the tap hole（92）By pipeline respectively with described oil-feed
Hole（62）Connection.
7. a kind of circulating cooling system of biomass granulation machine according to claim 1, it is characterised in that：The roller seat
（2）On be additionally provided with combiner valve（10）, the combiner valve（10）On offer remittance hole（101）And flow concentration hole（102）, it is described to import
Hole（101）By pipeline respectively with described oil outlet（63）Connection, the flow concentration hole（102）Pass through pipeline and the described second master
Fuel feed hole（55）Connection.
8. a kind of circulating cooling system of biomass granulation machine according to claim 1, it is characterised in that：The fuel tank
（4）Provided with circulation electric pump（11）And radiator（12）, the fuel tank（4）With oil-out and oil return opening, the circulation electric pump
（11）Pass through flowline（7）With pump oil pipe（13）Respectively with the described first main fuel feed hole（52）It is connected with the oil-out；Institute
State radiator（12）Pass through oil return pipe（8）Respectively with the described first main oil outlet（53）It is connected with the oil return opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710240051.5A CN107101083A (en) | 2017-04-13 | 2017-04-13 | A kind of circulating cooling system of biomass granulation machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710240051.5A CN107101083A (en) | 2017-04-13 | 2017-04-13 | A kind of circulating cooling system of biomass granulation machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107101083A true CN107101083A (en) | 2017-08-29 |
Family
ID=59675158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710240051.5A Pending CN107101083A (en) | 2017-04-13 | 2017-04-13 | A kind of circulating cooling system of biomass granulation machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107101083A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110280188A (en) * | 2019-08-06 | 2019-09-27 | 安徽环态生物能源科技开发有限公司 | A kind of biomass granulation machine pressure roller automatic oiling device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4174031A (en) * | 1978-03-27 | 1979-11-13 | Rexnord Inc. | Lubricating system and method |
| CN202105631U (en) * | 2011-03-15 | 2012-01-11 | 河南龙昌机械制造有限公司 | Lubricating device of compression roller of granulator |
| US20140093201A1 (en) * | 2012-10-02 | 2014-04-03 | Siemens Industry, Inc. | Apparatus and methods of self cooling a vertical motor thrust bearing |
| CN204320237U (en) * | 2014-11-19 | 2015-05-13 | 常州远见机械有限公司 | The oil channel structures of comminutor pressure roller shaft |
-
2017
- 2017-04-13 CN CN201710240051.5A patent/CN107101083A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4174031A (en) * | 1978-03-27 | 1979-11-13 | Rexnord Inc. | Lubricating system and method |
| CN202105631U (en) * | 2011-03-15 | 2012-01-11 | 河南龙昌机械制造有限公司 | Lubricating device of compression roller of granulator |
| US20140093201A1 (en) * | 2012-10-02 | 2014-04-03 | Siemens Industry, Inc. | Apparatus and methods of self cooling a vertical motor thrust bearing |
| CN204320237U (en) * | 2014-11-19 | 2015-05-13 | 常州远见机械有限公司 | The oil channel structures of comminutor pressure roller shaft |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110280188A (en) * | 2019-08-06 | 2019-09-27 | 安徽环态生物能源科技开发有限公司 | A kind of biomass granulation machine pressure roller automatic oiling device |
| CN110280188B (en) * | 2019-08-06 | 2022-01-25 | 安徽环态生物能源科技开发有限公司 | Automatic oiling device for compression roller of biomass granulator |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170829 |
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| RJ01 | Rejection of invention patent application after publication |