CN203508582U - Straw dust-free coal manufacturing machine - Google Patents
Straw dust-free coal manufacturing machine Download PDFInfo
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- CN203508582U CN203508582U CN201320652772.4U CN201320652772U CN203508582U CN 203508582 U CN203508582 U CN 203508582U CN 201320652772 U CN201320652772 U CN 201320652772U CN 203508582 U CN203508582 U CN 203508582U
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Abstract
The utility model discloses a straw dust-free coal manufacturing machine, and belongs to the technical field of agricultural machines. The straw dust-free coal manufacturing machine comprises a rack, a cut-up feeding unit, a punch forming unit and a motor driving unit, wherein the cut-up feeding unit, the punch forming unit and the motor driving unit are arranged on the rack and are successively connected. The straw dust-free coal manufacturing machine provided by the utility model has the advantages that the energy is saved, the straw dust-free coal manufacturing machine is efficient, the operation is simple, the same capacity can save the electricity by more than 50%, the manual work is saved by more than 50%, and the straw dust-free coal manufacturing machine is contributed to being applied and popularized to the nationwide rural areas in the application.
Description
Technical field
The utility model relates to a kind of producing coal from straw machine of agricultural machinery technological field, specifically a kind of electromechanical integration to stalk carry out dustless chopping, rub a material loading, the innovation practicality equipment of punching press coal processed.
Background technology
China has 1,800,000,000 mu of left and right of cultivated land at present, every mu of two 0.67 ton of fresh straw (moisture 40 ± 8%) of on average producing per year in season.Imagination 2/3 is processed into the annual total output of straw coal (moisture 10 ± 2%) can reach 600,000,000 tons.Unfortunately this is only one of unredeemed Chinese dream so far.2011.9.8 Fudan University's school bulletin report is that professor Chen Jianmin discloses the newest fruits that straw burning forms the Quantitative study of atmosphere pollution by this school Environmental Science and Engineering.Old professor's paper published in the top journal surface article of international environmental science, wherein mentions Chinese Shi Ge large agricultural country, and agricultural straw resource owning amount occupies first place in the world.The processing mode of the traditional agricultural crop straw of China be take in family's fuel or field open burning as main.Often there is the seriously polluted atmospheric visibility that affects of straw burning in a plurality of cities of China in recent years, and air quality is sharply descended degradation phenomenon, sometimes causes aircraft cannot Normal Take-Off And Landing to affect the event of traffic safety.The Gaseous Pollutants of agricultural stalk burning and exhausting and particle, become the key factor that affects China's regional environmental quality, climate change and health.Old teach problem group has been done a large amount of Quantitative study for this reason, system testing is calculated and is disclosed based on China's three kinds of Primary Crop Straws (corn, wheat, paddy rice) total output in 2004, wherein more than 4/5 stalk open burning output object is as follows: total carbon dioxide capacity reaches 2.5 hundred million tons, also has nitride, carbon monoxide toxic gases such as (and) polycyclic aromatic hydrocarbons.In addition a large amount of molecules is discharged into and in atmosphere, causes PM10, the rising of PM2.5 index.The United Nations vigorously advocates countries in the world energy-saving and emission-reduction, is exactly because in socio-economic development process, part heavy industry and chemical industry chemical fertilizer factory layout are unreasonable, for pursuing economic growth, pollution of ecological environment.Cause earth atmosphere carbon dioxide content increase year after year, the global greenhouse effect human society of brutally making reprisals, causes extreme climate to take place frequently.Summer in this year, the whole Northern Hemisphere became large stove, and the more than half region of China is continuously in high temperature and drought, and No kernels or seeds are gathered, as in a year of scarcity in large stretch of farmland; A torrential rain brings floods in smaller part region.The living standard of China's most people improved a lot before 30 years now, at least needed not worry about food and clothing.But there is the people of hypertension, angiocardiopathy and diabetes, fatty liver, gout quite general, top it all off: the ratio of suffering from tuberculosis and neoplastic disease rises year by year.Though city makes life finer, but people in city unavoidably sucks the finely ground particles exceeding standard in vehicle exhaust and air in lung.Be not difficult to find that our surrounding population nearly half is in sub-health status, thereby confirm old professor's argument---annual several hundred million tons of agricultural stalk open incinerations form the key factor being detrimental to health.The wise proposition of the leader of State Council allowed " energy-conserving and environment-protective " to become " pillar industry " of state key development in 2 years recently.Do not say other, how to realize agricultural stalk large-scale recovery and utilize this part thing, there's sth behind all this really can do.Everybody knows that coal non-renewable on the earth, oil, natural gas always have one day that has exploited after the centuries.China or export of coal big country before two more than ten years, but 9,000 ten thousand tons of coals of Chinese import in 2009, to import volume in 2010 rise 1.6 hundred million tons.Within 2011,2012, is import how many actually? be not reported, estimate that import in this year can not be less than 2.5 hundred million tons.In addition China's oil consumption is in recent years more than half by import.Be that China's energy breach is increasing on one side, this trend continues may jeopardize the people's livelihood and national security; Another side is to allow year after year pick up the stalk of hundred million tons of left and right and be recovered utilization except few part, and all the other one of all ruin torch.People in the know soon huge waste continue helpless, but any one Chinese citizen who withs a feeling for justice at least heart can feel shock!
Device for producing straw coal can be divided into system rod, briquetting, granulation three major types by finished product size at present; Opinion pressing principle comprises that screw extruding, planetary gear roll, three kinds of patterns of jumper bar knocking; From straw coal sufficient combustion, grain goods are best.China starts this kind equipment of Introduced From Abroad, the small lot batch manufacture slightly making improvements after copying as far back as the eighties in last century: develop into today, total 300Yu Jia agricultural machinery factory, the whole nation is engaged in manufacture, marketing, the maintenance work of this kind equipment.In recent years, thousands of complete equipments of these more than 300 plant produced were distributed in all parts of the country, and half is in the state to be repaired of stopping work unfortunately.This illustrates existing equipment quality and quantitatively can not meet large-scale recovery stalk far away makes the energy-saving and emission-reduction demand that biomass fuel substitutes raw coal.As the saying goes " knowing yourself as well as the enemy, could be victorious in every battle ".Design a practical machine of innovation that large-scale recovery stalk is made straw coal that is suitable for; first need analysis to obstruct for many years and restrict large-scale recovery and utilize what is the bottleneck of stalk? developing green biomass energy is for energy-conserving and environment-protective. but most domestic chaffcutter dust is especially big; severe exacerbation air; workman's operating environment extreme difference; power consumption is large; noise is large; and the broken thing of stalk is deposited on the ground, also to pushes away dolly by workman and transport to stalk block making machine place, with spade, stalk bean vermicelli is sent to charging aperture.The broken dust ratio of stalk reaches 15-30% at present, and this is not only a kind of wasting of resources, but also can have influence on the quality of briquetting.The sectional area that the fly cutter of existing chaffcutter is close to bed plate cutting stalk is large, and cutting force is also large, has used the unavoidable passivation of blade of a specified duration, and then cutting becomes to cut and hits, and dust produces at this point.It is drier more for a long time that stalk is placed on the warehouse time, and dust will be more.Large quantities of stalks of new harvesting relocate to stalk fuel factory distance from field longer, although there is tractor, stalk banks out quite huge, so need configuration stalk baling press.Humid area, south, peasant spreads fresh straw out and dries (avoid bale packing in the middle of mouldy) in advance, and then compressed bales, expends a large amount of time and manpower.Even now, still can't resolve transportation and the high hard nut to crack of stockyard cost.Because this binomial cost is high, Under the market economy condition peasant, to benefit just few, peasant's enthusiasm difficulty is given full play to.Traditional stalk block making machine mostly adopts and rolls.The heavy power consumption of this kind equipment, mould easily weares and teares, and a large amount of mechanical energy is consumed because turn to heat energy in rolling friction process after, and machine efficiency is very low.Often stalk humidity is bigger than normal, and briquetting can fall apart; Contrary stalk is too dry or reinforced too fast, will vexed machine.Main motor current be the cuber of 37KW according to the product description 0.8-1.2 ton of suppressing per hour, but within 8 hours, can only produce 2-2.5 ton in fact under normal circumstances.Existing stalk block making machine energy consumption is large in a word, and cylindric (also having square column type) end product quality is unstable, shows block density or high or low, and different in size.In addition the problem of stalk block making machine maximum is that functional failure of electromechanical rate is quite high, often will shut down to be repaired.Secondly workman's labour intensity is larger, is with exactly mouth mask can not guarantee that dust does not suck in lung.Existing stalk bar-producing machine is due to the round twitch per second 5 times in splicing sleeve of heavy jumper bar, and so fierce sliding friction can produce high heat, thereby splicing sleeve is good lubricated except guaranteeing, also needs to add cooling back installation.So just improved equipment cost.Bar-producing machine adopts screw extruding to add the chamber moulding of punching press list mostly, and production efficiency is relatively high.But the stalk rod of the long 30-60cm of diameter 7-8cm is directly useed fuel as and is difficult for grilling thoroughly, and user also needs it first to break into pieces.Traditional stalk pelleter also often adopts and rolls, and from economy, it is not as good as stalk block making machine.The equipment of same production capacity is compared, and granulator power consumption and equipment cost approach 2 times of cuber.The advantage of its maximum is exactly fully to burn after diameter only has the finished product of 0.8-1.5cm to enter boiler, and remaining ash is few especially, meets the requirement of energy-conserving and environment-protective completely.It is said that the boiler in power plant is applicable to using granular high density straw coal, larger piece rod straw coal is also out of favour.
Through finding delivering recently the retrieval of patent family technology, Chinese patent literature CN103230761, open day 2013-08-07, disclose a kind of large-scale stone roller and squeezed straw, broken coal particle substitutes lump coal, coke is prepared combustion gas and equipment, this technology rolls to rub up in extruding porose disc and arranges and roll groove, three row's extruded holes, in order to reach high yield ability mainly by rolling groove projected depth 15-25mm, width thick with rolling wheel (wide) degree mates, Rotating with Uniform rolls shearing broken straw rod, broken coal is in groove, in groove, arrange three rows or arrange extruded hole more, on, lower two exclusive round space 4-6mm, middle dislocation circle hole radius incision equivalent diameter extruded hole, reduce straw, broken coal is padded resistance roller.Increase extruded hole and effectively discharge area, improve again extruded hole broken straw rod and become particle to discharge output, the granulator efficiency of six groups of rolling wheels improves 10 times.
But this producing coal from straw technology and the utility model are by contrast, its weak point is that extruding granulation stops that area is the gross area 40-50%; And the utility model punching, granulating stops that area only only accounts for 9% of the gross area, both differ 5 times.The above-mentioned groove depth 15-25mm that rolls does not represent that muller enters the degree of depth of extruded hole, and the actual muller inlet hole degree of depth only has 2-3mm; And the utility model jumper bar inlet hole 14-30mm, so coal efficiency processed of the present utility model is at least 6 times of this technology.
Utility model content
The deficiency that the utility model exists for prior art, proposes the dustless coal making machine of a kind of stalk, and efficient energy-saving is easy and simple to handle, and equal production capacity economize on electricity is more than 50%, saves manually more than 50%, and object is to contribute to progressively to extend to national rural area in application.
The utility model is achieved through the following technical solutions, and the utility model comprises: frame and be arranged at frame and connected chopping feeding unit material, punch forming unit and electric-motor drive unit successively.
Described chopping feeding unit material comprises: chaffcutter mechanism, vortex pump and positive/negative-pressure pipeline, wherein: chaffcutter mechanism is arranged at respectively the relative both sides, below of frame and by positive/negative-pressure pipeline, is connected between the two with vortex pump, the output of positive/negative-pressure pipeline be positioned at punch forming unit directly over.
Described punch forming unit comprises: preheating hopper, punching press chamber mould, straight-line guidance framework, jumper bar, pressure regulation sheet, eccentric balancing blocks, bearing and carrying cylinder, wherein: preheating hopper is arranged at frame upper flat plate centre position, punching press chamber mould is arranged at the both sides, outer end of preheating hopper, straight-line guidance framework is arranged at frame upper flat plate middle position, jumper bar is arranged at the both sides, outer end of straight-line guidance framework, pressure regulation sheet is arranged at the top of jumper bar, eccentric balancing blocks is arranged at the upper position of output axle of carrying cylinder, bearing is arranged at eccentric balancing blocks top, carrying cylinder is arranged at plane middle position in frame.
Described electric-motor drive unit comprises: asynchronous motor, oil tray, gear wheel and pinion, wherein: asynchronous motor is arranged at frame motor mounting plate position, gear wheel is arranged at carrying cylinder bottom, and four pinions are arranged at respectively the output shaft of asynchronous motor, and oil tray is arranged in frame.
The built-in rotor at a slow speed of described chaffcutter mechanism, quick rotor and chaffcutter are rubbed a case.
Described punching press chamber mould has 6 groups.
Described straight-line guidance framework is by load-bearing guide rail and the V-type non-bearing rail plate Zhi Chengzuo straight reciprocating motion of rolling.
Described bearing is specifically arranged on eccentric balancing blocks top and the axle apart from its rotation centerline 65mm.
Totally 6 of described jumper bars, and minutes two groups be arranged at respectively on straight-line guidance framework.
Described eccentric balancing blocks is arranged at carrying cylinder top, and by parallel groove bi-directional push-pull straight-line guidance framework.
Technique effect
Compared with prior art, the utility model technique effect comprises:
1) design on forming cavity mode structure has broken through the restriction that chamber mould length can not surpass 5 times of outlet diameters, total length 24cm.The utility model reaches 8.57 times.And 6 ° of the interlude taper hole half-angles of chamber minister Mo Nei 11.89cm, big or small end cross-sectional area ratio is 3.5.Because above-mentioned two factors, the effect that significantly supercharging heats up rapidly is simultaneously that prior art is at all out of the question.
2) existing granulator setting only has single jumper bar, and the utility model adopts six jumper bars.
3) existing cuber does not have heater mostly, and the utility model is provided with preheating hopper.
4) common fault of existing producing coal from straw machine is that power consumption, mould are easy to wear, and the utility model adopts rolling bearing as far as possible, thereby avoids mechanical energy to consume because of sliding friction heating, simultaneously again can extending mechanism service life, improve the utilization of capacity.
5) existing producing coal from straw machine, for controlling end product quality, is paid close attention to the humidity of controlling particle, and the speed of charging.But be difficult to regulate the dwell time of particle in material temperature and chamber mould.The utility model can install at most 4 regulator boards additional on the top of jumper bar, every thick 0.4cm.Jumper bar enters the chamber degree of depth and is respectively: 1.4; 1.8; 2.2; 2.6; 3cm.Output is directly proportional to the degree of depth, but dwell time and the degree of depth are inversely proportional to.Therefore the utility model can be resolved the difficult problem of material temperature and dwell time technically.
Accompanying drawing explanation
Fig. 1 is the utility model main structure schematic diagram.
Fig. 2 is chopping feeding unit material schematic diagram.
Fig. 3 is punch forming cell schematics.
Fig. 4 is Fig. 3 generalized section.
The specific embodiment
Below embodiment of the present utility model is elaborated; the present embodiment is implemented take technical solutions of the utility model under prerequisite; provided detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
As shown in Figure 1, the present embodiment comprises: frame 1 and be arranged at frame 1 and connected chopping feeding unit material 2, punch forming unit 3 and electric-motor drive unit 4 successively, wherein:
Described chopping feeding unit material 2 comprises: chaffcutter mechanism 5, vortex pump 6 and positive/negative-pressure pipeline 7, wherein: chaffcutter mechanism 5 is arranged at respectively the relative both sides, below of frame and by positive/negative-pressure pipeline 7, is connected between the two with vortex pump 6, the output of positive/negative-pressure pipeline 7 be positioned at punch forming unit 3 directly over.
The built-in rotor at a slow speed 8 of described chaffcutter mechanism 5, quick rotor 9 and chaffcutter are rubbed a case 10, wherein: rotor 8 is balanced for guaranteeing charging at a slow speed, and rotor 9 completes chaffcutter and rubs silk fast.
Described punch forming unit 3 comprises: preheating hopper 11, punching press chamber mould 12, straight-line guidance framework 13, jumper bar 14, pressure regulation sheet 15, eccentric balancing blocks 16, bearing 17 and carrying cylinder 18, wherein: preheating hopper 11 is arranged at plane centre position in frame, punching press chamber mould 12 is arranged at the two ends, outside of preheating hopper, straight-line guidance framework 13 is arranged at plane middle position in frame 1, jumper bar 14 is arranged at the two ends, outside of straight-line guidance framework 13, pressure regulation sheet 15 is arranged at the top of jumper bar 14, eccentric balancing blocks 16 is arranged at the upper position of output axle of carrying cylinder 18, bearing 17 is arranged at eccentric balancing blocks 16 tops, carrying cylinder 18 is arranged at plane middle position in frame 1.
Described punching press chamber mould 12 has 6 groups (and bar-producing machine only has a chamber mould), and every cover is connected on preheating hopper 11 with four M16 soket head cap screws respectively;
Described straight-line guidance framework 13 is made straight reciprocating motion by rolling load-bearing guide rail 23 and 24 of V-type non-bearing rail plates;
Totally 6 of described jumper bars 14, and minutes two groups be arranged at respectively on straight-line guidance framework 13.
Described bearing 17 is specifically arranged on eccentric balancing blocks 16 tops and the axle 25 apart from its rotation centerline 65mm.
Described eccentric balancing blocks 16 is arranged at carrying cylinder 18 tops, and by parallel groove bi-directional push-pull straight-line guidance framework 13, can save long connecting rod.Not only mechanism is compact, well-balanced stressed, and changes conventional piston to previous crops useful work, makes backward idle work, wastes the situation of half mechanical energy, and the mechanical energy that the utility model is transmitted by eccentric balancing blocks 16 all transfers useful work to.
Described electric-motor drive unit 4 comprises: asynchronous motor 19, gear wheel 20, pinion 21 and oil tray 22, wherein: asynchronous motor 19 is arranged on frame 1 motor mounting plate, gear wheel 20 is arranged at carrying cylinder 18 bottoms, four pinions 21 are arranged at respectively the output shaft of asynchronous motor 19, oil tray 22 is arranged in frame 1, gear wheel 20 and the intermeshing transferring power of pinion 21 are slowed down 9 times time, and torque phase should expand 9 times.
4 punching press chamber moulds 12 in Fig. 1 are the stairstepping tubular structure of Intermediate Gray taper hole, punching press chamber mould 12 charging round mouth diameter 53mm; The square bore 26mm of discharging, is provided with granulation cutting plate, loads onto cutting plate and just can granulate, and the cutting plate of dismantling just can briquetting.Size end cross-sectional area differs 3.5 times, and pressurized effect is good more than traditional stalk block making machine, granulator, bar-producing machine.
Roll the crushed straw aggregate contacting with muller in process and can get in the quantity in die hole and be no more than 20%, and jumper bar 14 end faces can more than 80% sending in chamber touched crushed straw aggregate.
The utility model Array selection punching press frequency is 157.8 beats/min, compares: the impulsive force of complete machine can reduce 72.4% with 300 beats/min of bar-producing machines.The eccentric disc of bar-producing machine is changed into eccentric balancing blocks 16 and bearing 17 in mechanism, roll in the parallel slot of straight-line guidance framework 13 with the bearing 17 axle top bearing top circles of the eccentric 65mm of its pivot, so framework does reciprocating linear motion.And the six cover bearings of framework in rolling guide, also have the V-type rail plate bound level face direction free degree.Three jumper bars, 14 turnover hopper holes are respectively with at framework two ends, thereby have avoided sliding friction heat-dissipating.To first three root jumper bar 14, make useful work; Another three jumper bars 14 are also made useful work backward, so at least improve one times of mechanical efficiency.
Claims (10)
1. the dustless coal making machine of stalk, is characterized in that, comprising: frame and be arranged at frame and connected chopping feeding unit material, punch forming unit and electric-motor drive unit successively.
2. the dustless coal making machine of stalk according to claim 1, it is characterized in that, described chopping feeding unit material comprises: chaffcutter mechanism, vortex pump and positive/negative-pressure pipeline, wherein: chaffcutter mechanism is arranged at respectively the relative both sides, below of frame and by positive/negative-pressure pipeline, is connected between the two with vortex pump, the output of positive/negative-pressure pipeline be positioned at punch forming unit directly over.
3. the dustless coal making machine of stalk according to claim 1, it is characterized in that, described punch forming unit comprises: preheating hopper, punching press chamber mould, straight-line guidance framework, jumper bar, pressure regulation sheet, eccentric balancing blocks, bearing and carrying cylinder, wherein: preheating hopper is arranged at frame upper flat plate centre position, punching press chamber mould is arranged at the both sides, outer end of preheating hopper, straight-line guidance framework is arranged at frame upper flat plate middle position, jumper bar is arranged at the both sides, outer end of straight-line guidance framework, pressure regulation sheet is arranged at the top of jumper bar, eccentric balancing blocks is arranged at the upper position of output axle of carrying cylinder, bearing is arranged at eccentric balancing blocks top, carrying cylinder is arranged at plane middle position in frame.
4. the dustless coal making machine of stalk according to claim 1, it is characterized in that, described electric-motor drive unit comprises: asynchronous motor, oil tray, gear wheel and pinion, wherein: asynchronous motor is arranged at frame motor mounting plate position, gear wheel is arranged at carrying cylinder bottom, four pinions are arranged at respectively the output shaft of asynchronous motor, and oil tray is arranged in frame.
5. the dustless coal making machine of stalk according to claim 2, is characterized in that, the built-in rotor at a slow speed of described chaffcutter mechanism, quick rotor and chaffcutter are rubbed a case.
6. the dustless coal making machine of stalk according to claim 3, is characterized in that, described punching press chamber mould has 6 groups.
7. the dustless coal making machine of stalk according to claim 3, is characterized in that, described straight-line guidance framework is by load-bearing guide rail and the V-type non-bearing rail plate Zhi Chengzuo straight reciprocating motion of rolling.
8. the dustless coal making machine of stalk according to claim 3, is characterized in that, described bearing is specifically arranged on eccentric balancing blocks top and the axle apart from its rotation centerline 65mm.
9. according to the dustless coal making machine of the stalk described in claim 3 or 7, it is characterized in that, totally 6 of described jumper bars, and minutes two groups be arranged at respectively on straight-line guidance framework.
10. according to the dustless coal making machine of the stalk described in claim 3 or 7, it is characterized in that, described eccentric balancing blocks is arranged at carrying cylinder top, and by parallel groove bi-directional push-pull straight-line guidance framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320652772.4U CN203508582U (en) | 2013-10-22 | 2013-10-22 | Straw dust-free coal manufacturing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320652772.4U CN203508582U (en) | 2013-10-22 | 2013-10-22 | Straw dust-free coal manufacturing machine |
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| Publication Number | Publication Date |
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| CN203508582U true CN203508582U (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320652772.4U Expired - Fee Related CN203508582U (en) | 2013-10-22 | 2013-10-22 | Straw dust-free coal manufacturing machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106493988A (en) * | 2016-10-12 | 2017-03-15 | 上海鸿余环保科技有限公司 | A kind of producing coal from straw complete set of equipments |
| CN108236883A (en) * | 2016-12-25 | 2018-07-03 | 高进财 | A kind of wood pellet molding machine |
-
2013
- 2013-10-22 CN CN201320652772.4U patent/CN203508582U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106493988A (en) * | 2016-10-12 | 2017-03-15 | 上海鸿余环保科技有限公司 | A kind of producing coal from straw complete set of equipments |
| CN106493988B (en) * | 2016-10-12 | 2017-12-22 | 上海鸿余环保科技有限公司 | A kind of producing coal from straw complete set of equipments |
| CN108236883A (en) * | 2016-12-25 | 2018-07-03 | 高进财 | A kind of wood pellet molding machine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151223 Address after: 200433 room 301-10, No. 323 National Road, Shanghai, Yangpu District Patentee after: Shanghai surplus Environmental Protection Technology Co., Ltd. Address before: 200050 No. 245, Lane 4, Wuyi Road, Shanghai, Changning District Patentee before: Zhu Yongkang |
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| 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: 20140402 Termination date: 20161022 |