CN101412939A - Biomass compact curing moulding process and special equipment therefor - Google Patents
Biomass compact curing moulding process and special equipment therefor Download PDFInfo
- Publication number
- CN101412939A CN101412939A CNA2007100562136A CN200710056213A CN101412939A CN 101412939 A CN101412939 A CN 101412939A CN A2007100562136 A CNA2007100562136 A CN A2007100562136A CN 200710056213 A CN200710056213 A CN 200710056213A CN 101412939 A CN101412939 A CN 101412939A
- Authority
- CN
- China
- Prior art keywords
- biomass
- backing
- chamber
- spiral heat
- heat pressing
- 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.)
- Pending
Links
Images
Classifications
-
- 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
- B30B11/22—Extrusion presses; Dies therefor
- B30B11/24—Extrusion presses; Dies therefor using screws or worms
- B30B11/243—Extrusion presses; Dies therefor using screws or worms using two or more screws working in the same chamber
-
- 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
- B30B11/005—Control arrangements
-
- 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
- B30B11/22—Extrusion presses; Dies therefor
- B30B11/227—Means for dividing the extruded material into briquets
-
- 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
- B30B11/22—Extrusion presses; Dies therefor
- B30B11/24—Extrusion presses; Dies therefor using screws or worms
- B30B11/245—Extrusion presses; Dies therefor using screws or worms using two or more screws working in different chambers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a technological process for producing a new biomass energy source capable of replacing fossil fuel through the raw material of crop straw and a device thereof, in particular to a biomass compact solidification forming process and a special device thereof. The technological process comprises the following steps: high-speed grinding and crushing I, weighing and metering II, mixing and stirring III, spiral hot-press forming IV and automatic packaging V. A Biomass compact block produced through the method and the special device can be widely applied to the industries consuming a large amount of energy and resources such as heat supply, brick making, cement, power generation, and the like.
Description
Technical field
The present invention relates to a kind of with crop stalk as raw material, production can substitute the processing method and the equipment of the biomass new forms of energy of fossil oil, a kind of specifically biomass compact curing moulding process and specific equipment thereof, the biomass compact type piece that utilizes this method to produce are widely used in a large amount of Energy resources such as heat supply, brickmaking, cement, generating and consume industry.
Background technology
China is energy consumption big country, but the Energy resources deposit is very short.China is the Energy resources occupancy volume per capita, only is world occupancy volume per person's 5%.In 2005, the primary energy source consumption of China reached 22.2 hundred million tons of mark coals, accounts for 15% of world energy sources total quantity consumed, becomes second largest in the world energy expenditure state.Simultaneously, China also is greenhouse gas emission big country; At present, SO
2Quantity discharged rank first in the world CO
2Quantity discharged be only second to the U.S. and occupy second, energy-saving and emission-reduction have become the important goal of China's sustainable economic development.
Along with the increase of China's size of population, industrialization and Development of China's Urbanization are constantly accelerated, and particularly along with the growing continuously and fast of national economy, energy availability and demand contradiction will be outstanding day by day.Have the prediction of pass department, to the year two thousand twenty, national total energy consumption will will reach 5,000,000,000 tons to the year two thousand fifty and mark coals above 3,000,000,000 tons of mark coals.When the time comes, problems such as Energy resources total amount, energy security, energy environment all will become very noticeable significant problem.For this reason, the leading comrade of National Development and Reform Committee clearly proposes in " the national biomass energy development and use working conference " held in 2006; " by large-scale development biomass energy resource, realize the industrialized development of biomass energy technology, effectively increase power supply, promote the held secondary exhibition of the energy.”
In China, though the biomass compact forming technology has the development and use history of two more than ten years, the enterprise that is engaged in biomass compact forming research and development of products production has developed into family more than tens; Compact formed technology of China's prior biological matter and equipment still exist a lot of weakness and deficiency but for various reasons.Such as, aspect the complete coupling continuous industry production line of construction, there is obvious gap, a lot of enterprises only rely on unit till now even also and keep production operation; Aspect the quality of dense form piece, exist type piece moisture resistance separate low, the easy fragmentation of ability, burning inadequately fully, problem such as calorific value and thermo-efficiency is not high; Aspect dense form piece production unit, it is reasonable inadequately to exist functional defect, operating parameter, problem such as production efficiency is not high, main function components work-ing life is too short.These weakness or insufficient existence, caused biomass compact forming manufacturing enterprise scale development unhappy, form large-scale continuous industrial production difficulty, business economic benefit and increase problems such as accumulation is slow, also seriously restrict and limiting simultaneously the Growth Development of the close moulding industry of biomass.
The present invention is exactly on the further investigation basis of carrying out basic theories such as cellularstructure characteristics to biomass material, compressing and compacting moulding mechanism, combustion characteristics, deficiency or weakness that domestic existing biomass compact forming technology and equipment exist have conscientiously been investigated in detail, through repeatedly research trial repeatedly, creationary proposition biomass compact curing moulding process and specific equipment scheme thereof.
Summary of the invention
The technical problem underlying that the present invention solves is deficiency or the weakness at domestic existing biomass compact forming technology and equipment existence, provide a kind of biomass compact curing moulding process and specific equipment, the biomass compact type piece moisture resistance produced simultaneously that can continuous industry production to separate the ability height, be difficult for fragmentation, sufficient combustion, calorific value and thermo-efficiency height, its specific equipment operating parameter is reasonable, production efficiency height, main function components long service life.
The object of the present invention is achieved like this, and biomass compact curing moulding process step of the present invention comprises following manufacturing procedure: high speed backing pulverizing, Weighing, mixing stirring, spiral heat pressing forming, automatic packing.
Its concrete processing step process is as follows:
(1), described high speed backing grinding and processing operation is: backing becomes billet cotton-shaped broken section through high speed backing pulverizer with biomass material, can thoroughly destroy in the farm crop weave construction shape of hard stem or cane sclerderm, make its forfeiture bounce-back complex ability, also can make simultaneously the elasticity that has in the biomass cell, non-resilient and viscoelastic fiber molecule, form and twine mutually or stranded relation, after the extrusion molding, both or after removing external pressure, also be difficult to bounce-back and recover original structural shape; Through the biomass material after the backing pulverizing, deliver in the Weighing manufacturing procedure step by belt conveyer.
Described biomass material is meant crop stalk, the bar of pruning between forest, wood working excess, the skin core rod of agricultural-food fruit.
The billet that described high speed backing pulverizer backing becomes is meant that standard is wall scroll length≤80mm, sectional area≤40mm for cotton-shaped broken section
2Independent wall scroll must not have 〉=the interior no backing vestige of 30mm length, still retains the sclerderm of self-sow.
(2), described Weighing manufacturing procedure is: will manufacture fiber binding agent, the chemical ignition dope (fiber binding agent and chemical ignition dope are stored by reservoir) that biomass compact type piece institute must the blending interpolation, together with the cotton-shaped broken section material of the biomass billet of sending here from high speed backing pulverizing process step, formula rate by the production technique regulation, behind autoelectrinic weighing apparatus Weighing, deliver to by belt conveyer again and mix in the stirring and processing process respectively.
The formula rate of described production technique regulation is: 1. biomass material is 100 parts, 0.3 part of chemical ignition dope, 0.5 part of fiber binding agent; 2. chemical ignition dope total amount: 1 part of chemical ignition dope synthetic powder, 4 parts in water; 3. fiber binding agent total amount: 1 part of fiber dry-matter, 9 parts in water.
Described fiber binding agent refers to the product that is made of materials such as vegetable fibre or xylogen mainly refer to paper pulp that bean product are starched surplus liquid, industrial wastes such as hydrolysis xylon.Described chemical ignition dope is meant chemical ingredientss such as containing sodium-chlor, saltpetre, yellow soda ash, zinc nitrate, has loose, oxidation, the combustion-supporting effect of enhancing, and can be dissolved in the product of water.
(3), described mixing stirring and processing operation is, to be broken into additives such as the cotton-shaped broken section biomass material of billet and the fiber binding agent of blending, chemical ignition dope through backing carries out the composition powerful mixing by mixing and blending machine and stirs, form biomass compact type piece group material, make the evenly blending of various compositions in the group material, also can make biomass cellularstructure shape, rearrange the mechanical alteration of position; Be transported to the spiral heat pressing forming manufacturing procedure through the biomass compact type piece group material that mixes after stirring by belt conveyer.
(4) described spiral heat pressing forming manufacturing procedure is the spiral heat pressing forming machines by special use, by drying just squeeze fine and close, add hot extrusion molding, cooling curing guarantor type, auto-dividing manufacturing procedure and finish.
Be specifically described as follows:
1., the just crowded fine and close manufacturing procedure of described drying is: the biomass that will deliver to opening for feed by the spiral heat pressing forming machines of special use blend together the group material, the extruding propelling movement effect of the variable-pitch auger pusher that diminishes gradually by pitch, make biomass blend together the group material and obtain preliminary compactly extruding processing, tissue density obtains bigger raising, form biomass compact type compact material, and be extruded to transition material storing room; Adjustable electric heater by configuration around just squeezing fine and close chamber and transition material storing room in drying, make biomass blend together the group material and obtain heat drying, promptly can effectively regulate the water ratio that the control biomass blend together the group material, also can effectively soften the xylogen in the biomass cell tissue, strengthen bounding force.
2., the described hot extrusion molding manufacturing procedure that adds is: the spiral heat pressing forming machines by special use is the biomass compact type compact material that is pushed into by transition material storing room, the varying pitch pusher that diminishes gradually by pitch, in the extruding propelling movement effect of heating in the extrusion moulding chamber, reach the density requirements of dense form piece; Adjustable electric heater by configuration around the heating extrusion moulding chamber, further accurately regulate the water ratio that the control biomass blend together blank, further softening various fibrous tissue, make biomass cell tissue structure under the temperature and pressure condition that realizes, finish the great mechanical alignment that rearranges position, mechanical deformation and plastic flow and change, guarantee to reach the moulding firmness requirement of dense form piece.Simultaneously in the axle Front-end Design of variable-pitch auger pusher the plug of certain diameter and length is arranged, making becomes the biomass compact of pole type type piece base material and has a connectivity endoporus; The firmness of this geometrical shape energy enhanced block, and in manufacturing process, can become the space of clearing up the internal stress that produces when hot-forming and including free gas, when burning is used, can also become the passage of ventilation oxygen supply, help improving burning quality.
3., described cooling curing guarantor type manufacturing procedure is: by cooling-water flow in the spiral heat pressing forming machines circular chamber of special use, make the temperature that becomes round bar shape biomass compact type piece base material, can progressively be reduced cooling, the type piece obtains stable and solidifies; Simultaneously, be designed to be slightly larger than the way of heating extrusion moulding chamber internal diameter by the internal diameter of cooling curing being protected die cavity, make enter cooling curing protect die cavity biomass compact type piece base material around form certain space, be used for further clearing up internal stress that produces when hot-forming and the free gas that includes, guarantee to realize solidifying guarantor's type target.
4., described auto-dividing manufacturing procedure is: by the operating mechanism on the spiral heat pressing forming machines of special use cutting knife is pumped, cut off biomass compact type piece base material, make biomass compact type piece; By regulation and control cutting knife motion frequency, can need cut into suitable type piece by the user.
(5), described automatic package processing process is by regulating the automatic packing machine setting, can realize packaging means multi-form, weight according to user's specific requirement.
Described high speed backing pulverizer is made of the active backing roller of housing, motor, belt pulley, rotation axis, band groove, the passive backing roller of band double wedge, the described active backing roller that is arranged on the band groove on the rotation axis is installed in the housing with the passive backing roller of being with double wedge, have opening for feed and discharge port on housing, this equipment is implemented the backing comminution process by the active backing roller and the passive backing roller of synchronous two switched in opposite of rotating on the high speed backing pulverizer.
Described drying just squeezes fine and close manufacturing procedure, add hot extrusion molding manufacturing procedure, cooling curing guarantor type manufacturing procedure, auto-dividing manufacturing procedure all on the spiral heat pressing forming machines of configuration independent sealing finish.
Described biomass spiral heat pressing forming machines comprises the dry fine and close unit A that just squeezes, heating press-forming units B, cooling curing guarantor type unit C, the auto-dividing cells D, handle control unit E, described drying just squeeze fine and close unit A and heating press-forming units B be communicated with and be arranged on heating press-forming units B above, cooling curing guarantor type unit C is arranged on the side of heating press-forming units B, and be connected with the auto-dividing cells D, handle control unit E as the Controlling System of entire equipment with dryly just squeeze fine and close unit A, heating press-forming units B, cooling curing guarantor type unit C, be electrically connected between the auto-dividing cells D.
Described drying is just squeezed fine and close unit A and is comprised electric motor, driving wheel, opening for feed, dry fine and close chamber, variable-pitch auger pusher, transition material storing room, the adjustable electric heater of just squeezing, described variable-pitch auger pusher is arranged in the dry just crowded fine and close chamber, driving wheel is arranged on an end of variable-pitch auger pusher, and electric motor links to each other with driving wheel by belt; Opening for feed be arranged on dry just squeeze fine and close chamber above, transition material storing room be arranged on dry just squeeze fine and close chamber below, the shell that drying is just squeezed fine and close chamber and transition material storing room is provided with adjustable electric heater.
Described heating press-forming units B comprises by electric motor, driving wheel, heating extrusion moulding chamber, variable-pitch auger pusher, mounting flange, adjustable electric heater, described variable-pitch auger pusher is arranged in the heating extrusion moulding chamber, driving wheel is arranged on an end of variable-pitch auger pusher, electric motor is connected with driving wheel by belt, be communicated with transition material storing room above the heating extrusion moulding chamber, the other end is protected die cavity by mounting flange and cooling curing and is communicated with, and the shell of heating extrusion moulding chamber is provided with adjustable electric heater.
The axle front end of described variable-pitch auger pusher is provided with the plug that has certain diameter and length.
Described cooling curing guarantor type unit C comprises mounting flange, cooling curing guarantor die cavity, cooling water circulation chamber, entrance of cooling water, cooling water outlet, described cooling curing is protected die cavity and is communicated with the heating extrusion moulding chamber by mounting flange, the outside of protecting die cavity at cooling curing is provided with cooling water circulation chamber, has entrance of cooling water, cooling water outlet on the cooling water circulation chamber.
Described cooling curing is protected the internal diameter of the internal diameter of die cavity greater than the heating extrusion moulding chamber.
Described auto-dividing cells D comprises cutting knife and operating mechanism thereof, the described cutting knife that has operating mechanism on it) be arranged on cooling curing and protect die cavity and export an end.
Described manipulation control unit E comprises connection, the control components and parts of handling controlling box and corresponding configuration.
Advantage that the present invention has and extremely long-pending effect:
1.. the invention provides a kind of is the biomass compact curing moulding process and the specific equipment thereof of biomass material with the crop stalk, it has solved the type piece moisture resistance of domestic existing biomass compact technology and equipment existence preferably and has separated weakness or deficiencies such as low, the easy fragmentation of ability, incomplete combustion, not high, the very difficult realization heavy industrialization of calorific value continuous production, the desirability that can adapted biomass can the development and use industry develops rapidly has vast market space and market development potentiality.
2.. the present invention is on the basis of basic theories such as the cellularstructure characteristics of further investigation biomass, compressing and compacting moulding mechanism, combustion characteristics, weakness or deficiency at domestic existing biomass compact forming technology and equipment existence, targetedly invention designed the fiber binding agent of high speed backing pulverizing, blending suitable proportion and chemical ignition dope, dry just squeeze fine and close, add novelty engineering means and brand new technical equipments such as hot extrusion molding, cooling curing guarantor type, have novelty, novelty and practicality, have the demonstration promotional value.
3.. the present invention is actual apply after, can realize large-scale industrial production manufacturing biomass compact type piece product, utilize crop stalk, agricultural-food fruit skin nuclear plug, forest intermediate cutting to prune biomass resources such as branch and processing waste to extensive concentration deep development, improve China's Energy resources structure, realize the energy-saving and emission-reduction controlled target of national planning, increase farmers' income, improve aspects such as business economic benefit, all will play suitable effect, have favorable economic benefit and good social benefit.
Description of drawings
Fig. 1 is the biomass compact curing moulding process FB(flow block).
Fig. 2,3 is a high speed backing pulverizer principle of work synoptic diagram.
Fig. 4 is the one-piece construction synoptic diagram of spiral heat pressing forming machines.
Embodiment
As shown in Figure 1: biomass compact curing moulding process step of the present invention comprises following manufacturing procedure: the high speed backing is pulverized I, Weighing II, mixes stirring III, spiral heat pressing forming IV, is packed V automatically, connects by belt conveyer between above-mentioned five operations.
Shown in accompanying drawing 2,3: described high speed backing pulverizer constitutes 28 by the active backing roller 27 of housing 23, motor 24, belt pulley 25, rotation axis 26, band groove, the passive backing roller of band double wedge, the described active backing roller 27 that is arranged on the band groove on the rotation axis 26 is installed in the housing 23 with the passive backing roller 28 of being with double wedge, have opening for feed 29 and discharge port 30 on housing 23, this equipment is implemented the backing comminution process by the active backing roller 27 and the passive backing roller 28 of synchronous two switched in opposite of rotating on the high speed backing pulverizer.
As shown in Figure 4: described biomass spiral heat pressing forming machines comprises the dry fine and close unit A that just squeezes, heating press-forming units B, cooling curing guarantor type unit C, the auto-dividing cells D, handle control unit 14, described drying just squeeze fine and close unit A and heating press-forming units B be communicated with and be arranged on heating press-forming units B above, cooling curing guarantor type unit C is arranged on the side of heating press-forming units B, and be connected with the auto-dividing cells D, handle control unit 14 as the Controlling System of entire equipment with dryly just squeeze fine and close unit A, heating press-forming units B, cooling curing guarantor type unit C, be electrically connected between the auto-dividing cells D.
Described drying is just squeezed fine and close unit A and is comprised electric motor 2, driving wheel 1, opening for feed 3, dry fine and close chamber 6, variable-pitch auger pusher 8, transition material storing room 7, the adjustable electric heater 9 of just squeezing, described variable-pitch auger pusher 8 is arranged in the dry just crowded fine and close chamber 6, driving wheel 1 is arranged on an end of variable-pitch auger pusher 8, and electric motor 2 links to each other with driving wheel 1 by belt; Opening for feed 3 be arranged on dry just squeeze fine and close chamber 6 above, transition material storing room 7 be arranged on dry just squeeze fine and close chamber 6 below, the shell that drying is just squeezed fine and close chamber 6 and transition material storing room 7 is provided with adjustable electric heater 9.
Dry principle of work of just squeezing fine and close unit A is: the biomass that enter 3 li of opening for feeds are blended together the group material, the variable-pitch auger pusher 8 that diminishes gradually by pitch just squeezes 6 li in fine and close chamber in drying extruding propelling movement effect, make biomass blend together the group material and obtain preliminary compactly extruding processing, tissue density obtains bigger raising, become biomass compact type compact material, and be extruded to push and enter in the transition material storing room 7; Adjustable electric heater 9 by configuration around just squeezing fine and close chamber 6 and transition material storing room 7 in drying, make biomass blend together the group material and obtain heat drying, water ratio is tentatively regulated control, and the xylogen in the biomass cell obtains preliminarily softened, has strengthened bounding force simultaneously.
Described heating press-forming units B comprises by electric motor 5, driving wheel 4, heating extrusion moulding chamber 11, variable-pitch auger pusher 12, mounting flange 13, adjustable electric heater 10, described variable-pitch auger pusher 12 is arranged in the heating extrusion moulding chamber 11, driving wheel 4 is arranged on an end of variable-pitch auger pusher 12, electric motor 5 is connected with driving wheel 4 by belt, be communicated with transition material storing room 7 above the heating extrusion moulding chamber 11, the other end is protected die cavity 16 by mounting flange 13 and cooling curing and is communicated with, and the shell of heating extrusion moulding chamber 11 is provided with adjustable electric heater 10.
The axle front end of described variable-pitch auger pusher 12 is provided with the plug 21 that has certain diameter and length.
The principle of work of heating press-forming units B is: the biomass compact type compact material of coming in from 7 extruding of transition material storing room, the variable-pitch auger pusher 12 that diminishes gradually by pitch is in the extruding propelling movement effect of 11 li of heating extrusion moulding chambers, not only to be squeezed into garden clavate biomass compact type piece base material, reach the density requirements of biomass compact type piece; And to push propelling movement and advance in the cooling curing guarantor die cavity 16; Adjustable electric heater 10 by configuration around heating extrusion moulding chamber 11, further accurately regulate the desired water ratio of control biomass compact type piece, further softening various fibrous tissue, make the biomass cellularstructure under the temperature and pressure condition of setting, finish the great mechanical alignment that rearranges position, mechanical deformation and plastic flow and change, guarantee to reach the moulding firmness requirement of dense form piece; The plug 21 that certain diameter and length are arranged by the axle Front-end Design of variable-pitch auger pusher 12, make the biomass compact type piece base material that is squeezed into round bar shape that a connectivity endoporus can be arranged, this geometrical shape, firmness that can not only enhanced block, and in manufacturing process, can become the internal stress that produces when clearing up hot pressing and include the space of free gas, when burning is used, become ventilation oxygen supply passage, help the burning quality and the thermo-efficiency of raising type piece.
Described cooling curing guarantor type unit C comprises mounting flange 13, cooling curing guarantor die cavity 16, cooling water circulation chamber 18, entrance of cooling water 17, cooling water outlet 15, described cooling curing is protected die cavity 16 and is communicated with heating extrusion moulding chamber 11 by mounting flange 13, the outside of protecting die cavity 16 at cooling curing is provided with cooling water circulation chamber 18, has entrance of cooling water 17, cooling water outlet 15 on the cooling water circulation chamber 18.
Described cooling curing is protected the internal diameter of the internal diameter of die cavity 16 greater than heating extrusion moulding chamber 11.
The principle of work of cooling curing guarantor type unit C is: by water coolant flowing in circular chamber 18, round bar shape biomass compact piece base material is being protected through cooling curing in the process of die cavity 16, hot pressing temperature can progressively be cooled off reduction, the type piece that the internal stress that can avoid dense form piece base material to produce when hot-forming causes with including free gas release suddenly is loose, even burst apart or the pulverizing problem, guarantee that type piece base material kenel obtains stable and curing; Simultaneously, be designed to be slightly larger than the internal diameter of heating extrusion moulding chamber 11 by the internal diameter of cooling curing being protected die cavity 16, make enter cooling curing protect die cavity 16 round bar shape biomass compact type piece base material around can have certain space, be used for further clearing up the internal stress that dense form piece base material produces and include free gas when hot pressing, guarantee to realize solidifying guarantor's type target.
Described auto-dividing cells D comprises cutting knife 19 and operating mechanism 20 thereof, and the described cutting knife 19 that has operating mechanism 20 on it is arranged on cooling curing and protects die cavity 16 outlets one end.By operating mechanism 20 cutting knife 19 is pumped, cut off round bar shape biomass compact type piece base material, finish the target of making biomass compact type piece; By the motion frequency of regulation and control cutting knife 19, can need by the user, cut into suitable piece type.
Described manipulation control unit 14 comprises connection, the control components and parts of handling controlling box and corresponding configuration, by handling control unit 14, the operating parameter of control all functions unit and each work component be can regulate, coordinate synchronization, the automatic production operation of operation continuously realized.
Working process:
1, choose satisfactory crop stalk, agricultural-food fruit skin nuclear plug on request, the forest intermediate cutting is pruned biomass materials such as branch and processing waste, become billet cotton-shaped broken section by the backing of high speed backing pulverizer, through the biomass material after the backing pulverizing, deliver in the Weighing manufacturing procedure by belt conveyer.
2, fiber binding agent, the chemical ignition dope of the essential blending interpolation of biomass compact type piece institute will be manufactured, together with the cotton-shaped broken section material of the biomass billet of sending here from high speed backing grinding and processing operation, formula rate--biomass material 100kg by the production technique regulation, chemistry ignition dope 0.3kg, fiber binding agent 0.5kg, behind autoelectrinic weighing apparatus Weighing, deliver to by belt conveyer again and mix in the stirring and processing operation respectively.
3, will be broken into additives such as the cotton-shaped broken section biomass material of billet and the fiber binding agent of blending, chemical ignition dope through backing carries out the composition powerful mixing by mixing and blending machine and stirs, form biomass compact type piece group material, be transported to the spiral heat pressing forming manufacturing procedure by belt conveyer through the biomass compact type piece group material that mixes after stirring.
4, spiral heat pressing forming manufacturing procedure concrete steps are as follows:
1., at first just squeeze fine and close unit A and finish dry just crowded fine and close manufacturing procedure by the drying of spiral heat pressing forming machines.The biomass of delivering to opening for feed are blended together the group material, the extruding propelling movement effect of the variable-pitch auger pusher that diminishes gradually by pitch, make biomass blend together the group material and obtain preliminary compactly extruding processing, tissue density obtains bigger raising, form biomass compact type compact material, and be extruded to transition material storing room; Adjustable electric heater by configuration around just squeezing fine and close chamber and transition material storing room in drying, make biomass blend together the group material and obtain heat drying, promptly can effectively regulate the water ratio that the control biomass blend together the group material, also can effectively soften the xylogen in the biomass cell tissue, strengthen bounding force.
2., secondly, the heating press-forming units B by spiral heat pressing forming machines finishes and adds the hot extrusion molding manufacturing procedure.The biomass compact type compact material that is pushed into by transition material storing room, the varying pitch pusher by pitch diminishes gradually in the extruding propelling movement effect of heating in the extrusion moulding chamber, reaches the density requirements of dense form piece; Adjustable electric heater by configuration around the heating extrusion moulding chamber, further accurately regulate the water ratio that the control biomass blend together blank, further softening various fibrous tissue, make biomass cell tissue structure under the temperature and pressure condition that realizes, finish the great mechanical alignment that rearranges position, mechanical deformation and plastic flow and change, guarantee to reach the moulding firmness requirement of dense form piece.Simultaneously in the axle Front-end Design of variable-pitch auger pusher the plug of certain diameter and length is arranged, making becomes the biomass compact of pole type type piece base material and has a connectivity endoporus; The firmness of this geometrical shape energy enhanced block, and in manufacturing process, can become the space of clearing up the internal stress that produces when hot-forming and including free gas, when burning is used, can also become the passage of ventilation oxygen supply, help improving burning quality.
3., once more, the cooling curing guarantor type unit C by spiral heat pressing forming machines finishes cooling curing guarantor type manufacturing procedure.By cooling-water flow in the circular chamber, make the temperature that becomes round bar shape biomass compact type piece base material, can progressively be reduced cooling, the type piece obtains stable and solidifies; Simultaneously, be designed to be slightly larger than the way of heating extrusion moulding chamber internal diameter by the internal diameter of cooling curing being protected die cavity, make enter cooling curing protect die cavity biomass compact type piece base material around form certain space, be used for further clearing up internal stress that produces when hot-forming and the free gas that includes, guarantee to realize solidifying guarantor's type target.
4., finish the auto-dividing manufacturing procedure by the auto-dividing cells D of spiral heat pressing forming machines at last.By operating mechanism cutting knife is pumped, cut off biomass compact type piece base material, make biomass compact type piece; By regulation and control cutting knife motion frequency, can need cut into suitable type piece by the user.
5, the specific requirement according to the user can be provided with the packing that realizes multi-form and weight mode by regulating automatic packing machine.
Concrete parameter declaration:
1. " biomass material ":
1., biomass are by crop stalk, the bar of pruning between forest, wood working excess, the formations such as core rod of agricultural-food fruit
2., the biomass compact curing shaping raw material: because of various biomass structure differences, calorific value need not, fine and close factor difference act as the raw material of biomass compact curing moulding, must be based on wherein a kind of, main raw material accounts for whole raw material proportions should 〉=70%.
2. " billet is cotton-shaped broken section " standard:
1., wall scroll length≤80mm, sectional area≤40mm
2
2., independent wall scroll must not have 〉=30mm length in no backing vestige, still retain the sclerderm of self-sow.
3. " fiber adhesive "
The product that finger is made of materials such as vegetable fibre or xylogen mainly refers to paper pulp, and syrup, bean product are starched surplus liquid, trade wastes such as hydrolysis xylon, furfural dregs.
4. " chemical ignition dope "
Refer to contain chemical ingredientss such as sodium-chlor, saltpetre, yellow soda ash, cerous nitrate, have loose, oxidation, the combustion-supporting effect of enhancing, and can be dissolved in the product of water.
5. " formula rate "
1., biomass material: 100 parts; 0.3 part of chemistry ignition dope; 0.5 part of fiber binding agent.
2., chemical ignition dope total amount: 1 part of chemical ignition dope synthetic powder, 4 parts in water.
3., fiber binding agent total amount: 1 part of fiber dry-matter, 9 parts in water.
6, " mixing and blending machine " technical parameter:
1 general-purpose equipment: round shape blade rotation whipped form
2 technical parameters: drum diameter φ 900mm, long 1200mm,
Blade quantity: 16, blade rotational speed 98r/min,
Blade dimensions: wide 35mm, thick 8mm, install at 25 ° of angles
Power of motor 1.8kw.
7, " endless belt conveyor " technical parameter:
1 general-purpose equipment: belt transmits, and length is free.
2 technical parameters: belt width: 720mm, roller diameter φ 120mm,
Backplate height 100mm, power of motor 1.8kw
8, " dry just crowded " technical parameter:
1 technical parameter: 120 ℃ ± 10 ℃ of Heating temperatures
Residence time 80min
Cavity dimension 80mm * 850mm
Molten long-pending 4270cm
3
Dry compacted degree: 0.75kg/cm just
3
Capacity: 4270 * 0.75=3202.8kg
Extruding peak pressure: 10mpa
Deliverability: 40kg/min
Power of motor: 8km
9, " heat " technical parameter compact formed:
Heating temperature: 180 ℃ ± 10 ℃
The residence time: 80min
Cavity dimension φ 60mm * 800mm
Volume: 2260cm
3
Density: 1.36kg/cm
3
Capacity: 2260 * 1.36=3073.6kg
Output: 3073.6 ÷ 80=38kg/min
Extruding peak pressure: 12mpa
Power of motor: 12km
10, " cooling guarantor type " technical parameter:
Cavity dimension: φ 65mm * 800mm
Cooling time: 80min
11, " type piece finished product " condition
Type piece physical dimension: external diameter: φ 60mm
Endoporus: φ 15mm
Length: the user is free
Density: 1.36kg/cm
3
Calorific value: 17800kJ/kg
Ultimate compression strength: axially 〉=36KN
Radially 〉=10KN
Claims (10)
1, a kind of biomass compact curing moulding process is characterized in that: this processing step comprises following manufacturing procedure: the high speed backing is pulverized I, Weighing II, mixes stirring III, spiral heat pressing forming IV, is packed V automatically;
Its concrete processing step process is as follows:
(1), described high speed backing grinding and processing operation is: backing becomes billet cotton-shaped broken section through high speed backing pulverizer with biomass material, and the biomass material after pulverizing through backing is delivered in the Weighing manufacturing procedure step by belt conveyer;
(2), described Weighing manufacturing procedure is: will manufacture the fiber binding agent that biomass compact type piece institute must the blending interpolation, chemical ignition dope together with the cotton-shaped broken section material of the biomass billet of sending here from high speed backing pulverizing process step, formula rate by the production technique regulation, behind autoelectrinic weighing apparatus Weighing, deliver to by belt conveyer again and mix in the stirring and processing process respectively;
(3), described mixing stirring and processing operation is, to be broken into the fiber binding agent of cotton-shaped broken section biomass material of billet and blending, chemical ignition dope additive through backing carries out the composition powerful mixing by mixing and blending machine and stirs, form biomass compact type piece group material, make the evenly blending of various compositions in the group material, be transported to the spiral heat pressing forming manufacturing procedure by belt conveyer through the biomass compact type piece group material that mixes after stirring;
(4) described spiral heat pressing forming manufacturing procedure be by spiral heat pressing forming machines, by drying just squeeze fine and close, add hot extrusion molding, cooling curing guarantor type, four manufacturing procedures of auto-dividing and finish;
(5), described automatic package processing operation is by regulating the automatic packing machine setting, to realize packaging means multi-form, weight.
2, a kind of biomass compact curing moulding process according to claim 1 is characterized in that:
1., the just crowded fine and close manufacturing procedure of described drying is: the biomass that will deliver to opening for feed by spiral heat pressing forming machines blend together the group material, the extruding propelling movement effect of the variable-pitch auger pusher that diminishes gradually by pitch, make biomass blend together the group material and obtain preliminary compactly extruding processing, form biomass compact type compact material, and be extruded to transition material storing room; Make biomass blend together the group material and obtain heat drying;
2., the described hot extrusion molding manufacturing procedure that adds is: the biomass compact type compact material that is pushed into by transition material storing room, the varying pitch pusher that diminishes gradually by pitch, in the extruding propelling movement effect of heating in the extrusion moulding chamber, reach the density requirements of dense form piece; Adjustable electric heater by configuration around the heating extrusion moulding chamber, further accurately regulate the water ratio that the control biomass blend together blank, further softening various fibrous tissue, make biomass cell tissue structure under the temperature and pressure condition that realizes, finish and rearrange the position, the great mechanical alignment of mechanical deformation and plastic flow changes, guarantee to reach the moulding firmness requirement of dense form piece, simultaneously in the axle Front-end Design of variable-pitch auger pusher the plug of certain diameter and length is arranged, making becomes the biomass compact of pole type type piece base material and has a connectivity endoporus;
3., described cooling curing guarantor type manufacturing procedure is: by cooling-water flow in the circular chamber, make the temperature that becomes round bar shape biomass compact type piece base material, can progressively be reduced cooling, the type piece obtains stable and solidifies; Simultaneously, be designed to be slightly larger than the way of heating extrusion moulding chamber internal diameter by the internal diameter of cooling curing being protected die cavity, make enter cooling curing protect die cavity biomass compact type piece base material around form certain space, be used for further clearing up internal stress that produces when hot-forming and the free gas that includes, guarantee to realize solidifying guarantor's type target;
4., described auto-dividing manufacturing procedure is: by the operating mechanism on the spiral heat pressing forming machines of special use cutting knife is pumped, cut off biomass compact type piece base material, make biomass compact type piece; By regulation and control cutting knife motion frequency, can need cut into suitable type piece by the user.
3, a kind of biomass compact curing moulding specific equipment according to claim 1---biomass spiral heat pressing forming machines is characterized in that: this shaper comprises dry fine and close unit A, heating press-forming units B, cooling curing guarantor type unit C, auto-dividing cells D, the manipulation control unit (14) of just squeezing; Described drying just squeeze fine and close unit A and heating press-forming units B be communicated with and be arranged on heating press-forming units B above, cooling curing guarantor type unit C be arranged on heating press-forming units B a side, and is connected with the auto-dividing cells D, handle control unit (14) as the Controlling System of entire equipment with dryly just squeeze fine and close unit A, heat between press-forming units B, cooling curing guarantor type unit C, the auto-dividing cells D and be electrically connected.
4, a kind of biomass spiral heat pressing forming machines according to claim 3, it is characterized in that: described drying is just squeezed fine and close unit A and is comprised electric motor (2), driving wheel (1), opening for feed (3), dry fine and close chamber (6), variable-pitch auger pusher (8), transition material storing room (7), the adjustable electric heater (9) of just squeezing, described variable-pitch auger pusher (8) is arranged in the dry just crowded fine and close chamber (6), driving wheel (1) is arranged on an end of variable-pitch auger pusher (8), and electric motor (2) links to each other with driving wheel (1) by belt; Opening for feed (3) be arranged on dry just squeeze fine and close chamber (6) above, transition material storing room (7) be arranged on dry just squeeze fine and close chamber (6) below, the shell that drying is just squeezed fine and close chamber (6) and transition material storing room (7) is provided with adjustable electric heater (9).
5, a kind of biomass spiral heat pressing forming machines according to claim 3, it is characterized in that: described heating press-forming units B comprises by electric motor (5), driving wheel (4), heating extrusion moulding chamber (11), variable-pitch auger pusher (12), mounting flange (13), adjustable electric heater (10), described variable-pitch auger pusher (12) is arranged in the heating extrusion moulding chamber (11), driving wheel (4) is arranged on an end of variable-pitch auger pusher (12), electric motor (5) is connected with driving wheel (4) by belt, be communicated with transition material storing room (7) above the heating extrusion moulding chamber (11), the other end is protected die cavity (16) by mounting flange (13) and cooling curing and is communicated with, and the shell of heating extrusion moulding chamber (11) is provided with adjustable electric heater (10).
6, a kind of biomass spiral heat pressing forming machines according to claim 3, it is characterized in that: described cooling curing guarantor type unit C comprises mounting flange (13), cooling curing is protected die cavity (16), cooling water circulation chamber (18), entrance of cooling water (17), cooling water outlet (15), described cooling curing is protected die cavity (16) and is communicated with heating extrusion moulding chamber (11) by mounting flange (13), the outside of protecting die cavity (16) at cooling curing is provided with cooling water circulation chamber (18), has entrance of cooling water (17) on cooling water circulation chamber (18), cooling water outlet (15).
7, a kind of biomass spiral heat pressing forming machines according to claim 3, it is characterized in that: described auto-dividing cells D comprises cutting knife (19) and operating mechanism (20) thereof, and the described cutting knife (19) that has operating mechanism (20) on it is arranged on cooling curing and protects die cavity (16) outlet one end.
8, a kind of biomass spiral heat pressing forming machines according to claim 3 is characterized in that: described manipulation control unit (14) comprises connection, the control components and parts of handling controlling box and corresponding configuration.
9, a kind of biomass spiral heat pressing forming machines according to claim 5 is characterized in that: the axle front end of described variable-pitch auger pusher (12) is provided with the plug (21) that has certain diameter and length; Described cooling curing is protected the internal diameter of the internal diameter of die cavity (16) greater than heating extrusion moulding chamber (11).
10, high speed backing pulverizer according to claim 1, it is characterized in that: this backing pulverizer comprises housing (23), motor (24), belt pulley (25), rotation axis (26), the active backing roller (27) of band groove, the passive backing roller (28) of band double wedge, the passive backing roller (28) of described active backing roller (27) that is arranged on the band groove on the rotation axis (26) and band double wedge is installed in the housing (23), have opening for feed (29) and discharge port (30) on housing (23), this equipment is implemented the backing comminution process by the active backing roller (27) and the passive backing roller (28) of synchronous two switched in opposite of rotating on the high speed backing pulverizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100562136A CN101412939A (en) | 2007-10-18 | 2007-10-18 | Biomass compact curing moulding process and special equipment therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100562136A CN101412939A (en) | 2007-10-18 | 2007-10-18 | Biomass compact curing moulding process and special equipment therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101412939A true CN101412939A (en) | 2009-04-22 |
Family
ID=40593681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100562136A Pending CN101412939A (en) | 2007-10-18 | 2007-10-18 | Biomass compact curing moulding process and special equipment therefor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101412939A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851541A (en) * | 2010-05-27 | 2010-10-06 | 宋庆华 | Method for producing solid fuel by using maize straws and manufacturing process |
| CN102344843A (en) * | 2010-08-03 | 2012-02-08 | 尚征 | Crop straw briquettes fuel production line |
| CN103710068A (en) * | 2012-09-28 | 2014-04-09 | 北京奥科瑞丰新能源股份有限公司 | Automatic biomass fuel briquette production line |
| CN103710067A (en) * | 2012-09-28 | 2014-04-09 | 北京奥科瑞丰新能源股份有限公司 | Automatic biomass fuel briquette production technology |
| CN103964015A (en) * | 2013-01-29 | 2014-08-06 | 昆山尚达智机械有限公司 | Straw forming and packaging integrated machine |
| CN104516336A (en) * | 2014-02-24 | 2015-04-15 | 江苏大学 | Intelligent straw briquetting forming production line controller |
| CN105413836A (en) * | 2015-11-24 | 2016-03-23 | 洛阳开拓新能源开发有限公司 | Biomass fuel production system |
| CN105437602A (en) * | 2015-11-24 | 2016-03-30 | 洛阳开拓新能源开发有限公司 | Biomass fuel forming machine |
| CN105950253A (en) * | 2016-06-15 | 2016-09-21 | 安徽新生力生物科技有限公司 | Processing method of low-energy-consumption biomass fuel |
| CN106082574A (en) * | 2016-08-22 | 2016-11-09 | 方运平 | Closed sludge purification system |
| CN107787691A (en) * | 2017-10-27 | 2018-03-13 | 郭帅 | A kind of stalk recovery and treatment method |
| CN109353055A (en) * | 2018-11-23 | 2019-02-19 | 胡成兵 | Suppress the upper magazine of Chinese medicine and the prepared slices of Chinese crude drugs |
| CN110184104A (en) * | 2019-05-12 | 2019-08-30 | 哈尔滨迎春科技有限公司 | A kind of biomass ring touches cuber comprehensive utilization process |
| CN110372644A (en) * | 2019-08-29 | 2019-10-25 | 山东省化工研究院 | The nitration mixture method of deoxidation and equipment of biomass material in a kind of furfural production |
| CN113234505A (en) * | 2021-06-09 | 2021-08-10 | 重庆科技学院 | System for preparing fuel by mixing low-calorific-value coal and biomass solid wastes |
-
2007
- 2007-10-18 CN CNA2007100562136A patent/CN101412939A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851541A (en) * | 2010-05-27 | 2010-10-06 | 宋庆华 | Method for producing solid fuel by using maize straws and manufacturing process |
| CN102344843A (en) * | 2010-08-03 | 2012-02-08 | 尚征 | Crop straw briquettes fuel production line |
| CN103710068A (en) * | 2012-09-28 | 2014-04-09 | 北京奥科瑞丰新能源股份有限公司 | Automatic biomass fuel briquette production line |
| CN103710067A (en) * | 2012-09-28 | 2014-04-09 | 北京奥科瑞丰新能源股份有限公司 | Automatic biomass fuel briquette production technology |
| CN103710068B (en) * | 2012-09-28 | 2015-11-11 | 北京奥科瑞丰新能源股份有限公司 | The compact formed automatic production line of biomass fuel |
| CN103964015A (en) * | 2013-01-29 | 2014-08-06 | 昆山尚达智机械有限公司 | Straw forming and packaging integrated machine |
| CN104516336A (en) * | 2014-02-24 | 2015-04-15 | 江苏大学 | Intelligent straw briquetting forming production line controller |
| CN105437602A (en) * | 2015-11-24 | 2016-03-30 | 洛阳开拓新能源开发有限公司 | Biomass fuel forming machine |
| CN105413836A (en) * | 2015-11-24 | 2016-03-23 | 洛阳开拓新能源开发有限公司 | Biomass fuel production system |
| CN105413836B (en) * | 2015-11-24 | 2018-09-28 | 广东粤电湛江生物质发电有限公司 | Biomass fuel production system |
| CN105950253A (en) * | 2016-06-15 | 2016-09-21 | 安徽新生力生物科技有限公司 | Processing method of low-energy-consumption biomass fuel |
| CN106082574A (en) * | 2016-08-22 | 2016-11-09 | 方运平 | Closed sludge purification system |
| CN107787691A (en) * | 2017-10-27 | 2018-03-13 | 郭帅 | A kind of stalk recovery and treatment method |
| CN109353055A (en) * | 2018-11-23 | 2019-02-19 | 胡成兵 | Suppress the upper magazine of Chinese medicine and the prepared slices of Chinese crude drugs |
| CN110184104A (en) * | 2019-05-12 | 2019-08-30 | 哈尔滨迎春科技有限公司 | A kind of biomass ring touches cuber comprehensive utilization process |
| CN110372644A (en) * | 2019-08-29 | 2019-10-25 | 山东省化工研究院 | The nitration mixture method of deoxidation and equipment of biomass material in a kind of furfural production |
| CN113234505A (en) * | 2021-06-09 | 2021-08-10 | 重庆科技学院 | System for preparing fuel by mixing low-calorific-value coal and biomass solid wastes |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101412939A (en) | Biomass compact curing moulding process and special equipment therefor | |
| CN102161926B (en) | Production process of biomass carbon-based briquetted coal for replacing fossil fuel | |
| CN203244949U (en) | Solidification circular-mold granule forming machine for biological substances | |
| CN101307266A (en) | Biomass solid fuel and processing method | |
| CN102191100A (en) | Biomass moulded coal | |
| CN107353959A (en) | A kind of biomass molding fuel and preparation method thereof | |
| CN104845696A (en) | Method for preparing biomass pellet fuel by mulberry branch fermentation wastes | |
| CN102021059A (en) | Forming method for modifying biomass fuel by rapid thermal treatment process | |
| CN104232199A (en) | Method for producing biomass fuels by using waste paper pulp | |
| JP2005532904A (en) | Method and apparatus for molding biomaterials | |
| CN101020852A (en) | Process of forming biomass fuel | |
| CN207711454U (en) | Biomass dentation pinch roller rolling type forming machine | |
| KR20130030787A (en) | Method for preparing solid fuel using waste water sludge | |
| CN202498760U (en) | Improved porous spiral biomass fuel and forage forming device | |
| CN101824348B (en) | Method for preparing biomass compact fuel with rubber seed hull | |
| CN103950084B (en) | Microwave sizing stalk manufactures the method for environmental protection wood materials | |
| CN101412290A (en) | Biomass spiral heat pressing forming machines | |
| CN205310902U (en) | Biomass power generation fuel briquetting make -up machine | |
| CN201437283U (en) | Circular mould forming machine for biomass solid fuel | |
| CN205112471U (en) | Biomass fuel briquetting machine | |
| CN109895442A (en) | Biomass dentation pinch roller rolling type forming machine and forming method | |
| CN205112476U (en) | Biomass fuel smashes excellent all -in -one of system | |
| CN101838571B (en) | Productive technology of tubular biomass fuel | |
| CN207682601U (en) | A kind of straw granulating device | |
| CN201325196Y (en) | Tobacco stem briquette forming machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090422 |