CN103434178B - Three layers of biomass extrusion molding device and vertical type biomass extrusion moulding machine - Google Patents
Three layers of biomass extrusion molding device and vertical type biomass extrusion moulding machine Download PDFInfo
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- CN103434178B CN103434178B CN201310320787.5A CN201310320787A CN103434178B CN 103434178 B CN103434178 B CN 103434178B CN 201310320787 A CN201310320787 A CN 201310320787A CN 103434178 B CN103434178 B CN 103434178B
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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
- B30B11/22—Extrusion presses; Dies therefor
- B30B11/228—Extrusion presses; Dies therefor using pressing means, e.g. rollers moving over a perforated die plate
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Abstract
The invention provides a kind of three layers of extrusion forming device, by the upper strata extrusion forming device be arranged in order from top to bottom, middle level extrusion forming device and lower floor's extrusion forming device, any one extrusion forming device is all be made up of pressing wheel mechanism and the flat die disks be arranged on bottom it, the axes coincide of flat die disks a, b, c, on flat die disks with its center of circle for basis point is furnished with two row's nibs, the lower port of nib forms discharging opening.Also vertical spindle is provided with in vertical type biomass extrusion moulding machine with above-mentioned three layers of extrusion forming device, vertical spindle is made up of upper axle and lower shaft, Upper shaft sleeve is located on the flat die disks in upper, middle and lower-ranking extrusion forming device, and lower shaft adopts upper and lower two point-supported Bearing configuration forms to be arranged in frame.The present invention can carry out the extruded effect of three extruded raising materials for biomass material, and can improve the extruded efficiency of biomass material.
Description
Technical field
The present invention relates to a kind of biomass extrusion molding device, especially a kind of three layers of biomass extrusion molding device and vertical type biomass extrusion moulding machine.
Background technology
The design of existing biomass extrusion molding machine mainly contains two kinds, a kind of ring mould machine being mould and standing up, and feature is that shaping nib along the circumferential direction evenly disperses distribution; Another kind is the flat die machine that mould keeps flat, and feature is that shaping nib single row or multiple rows are uniformly distributed along the diameter of axle.These two kinds of forming machines are all by being squeezed out from these forming holes by material, the extruding finished product needed for formation.Its shortcoming is the material such as maize straw for bulk cargo (such as sawdust and so on), wheat straw, rice husk, northeast, under being in wet environment extruded difficulty not easily compressing and once extruding cannot reach expected effects.And correspondingly single lead screw ex truding briquetting machine design, manufacture complicated and maintenance is all very difficult, the life-span is short, and reliability is not high.
A kind of vertical double-layer biomass extrusion moulding machine is disclosed in the Chinese patent of open (bulletin) number 102049807A, its major constituents is: comprise the upper and lower two-layer pressing mechanism being provided with flat die disks and pressing wheel mechanism, the discharge outlet of upper strata pressing mechanism is in the top of lower floor's flat die disks.Due to twice extruded process can only be carried out to biomass material, therefore, when the straw kind material larger to fibrousness carries out extruded process, often cannot reach best effect.In addition, owing to being only provided with row's nib on above-mentioned upper and lower two-layer flat die disks, therefore, the extruded effect of biomass material cannot also be improved.
Summary of the invention
For the weak point existed in the problems referred to above, the invention provides a kind of extruded effect can carrying out three extruded raising materials for biomass material, and three layers of biomass extrusion molding device and the vertical type biomass extrusion moulding machine of express material shaping efficiency can be improved.
For achieving the above object, the invention provides a kind of three layers of extrusion forming device, comprise upper strata extrusion forming device and lower floor's extrusion forming device, described extrusion forming device is made up of pressing wheel mechanism and the flat die disks be arranged on bottom it, also comprise the middle level extrusion forming device be arranged between upper strata extrusion forming device and lower floor's extrusion forming device, described upper strata extrusion forming device is used for tentatively rolling pulverizing to material, to change the pliability of material; Described middle level extrusion forming device is shaping for carrying out secondary extrusion to material, to improve the extruded effect of material; Described lower floor extrusion forming device be used for material carry out third time grind rub pulverize and extruded, to remove the moisture in moist material; The axes coincide of flat die disks in upper, middle and lower-ranking extrusion forming device, on described flat die disks with its center of circle for basis point is furnished with two row's nibs, the lower port of described nib forms discharging opening.
Three layers of above-mentioned extrusion forming device, wherein, in two adjacent flat die disks, the aperture of nib is different, with realize nib aperture difference and feed poor, to improve extruded efficiency.
Three layers of above-mentioned extrusion forming device, wherein, are provided with in the flat die disks in described lower floor extrusion forming device for heating moist material, to remove the heater of its moisture.
Three layers of above-mentioned extrusion forming device, wherein, described pressing wheel mechanism comprises the wheel pressing shaft of horizontal-extending and is connected to the left and right pinch roller of the described wheel pressing shaft left and right sides respectively by bearing, and the middle part of described wheel pressing shaft is arranged on the bearing of corresponding pressing wheel mechanism.
The present invention also provides a kind of vertical type biomass extrusion moulding machine, comprises extrusion forming device, and described extrusion forming device is three layers of described extrusion forming device, is made up of successively upper, middle and lower-ranking extrusion forming device; The axes coincide of flat die disks in upper, middle and lower-ranking extrusion forming device, on described flat die disks with its center of circle for basis point is furnished with two row's nibs, the lower port of described nib forms discharging opening.
Above-mentioned vertical type biomass extrusion moulding machine, wherein, in two adjacent flat die disks, the aperture of nib is different, with realize nib aperture difference and feed poor, to improve extruded efficiency.
Above-mentioned vertical type biomass extrusion moulding machine, wherein, is provided with in the flat die disks in described lower floor extrusion forming device for heating moist material, to remove the heater of its moisture.
Above-mentioned vertical type biomass extrusion moulding machine, wherein, described pressing wheel mechanism comprises the wheel pressing shaft of horizontal-extending and is connected to the left and right pinch roller of the described wheel pressing shaft left and right sides respectively by bearing, the middle part of described wheel pressing shaft is arranged on the bearing of corresponding pressing wheel mechanism, the bearing of described upper and lower lamination wheel mechanism is respectively equipped with the connecting interface for being in transmission connection described in realizing, and the structure of described connecting interface on two pressing wheel mechanism bearings is identical.
Above-mentioned vertical type biomass extrusion moulding machine, wherein, is also provided with vertical spindle, and the end of described vertical spindle is connected with motor shaft by axle sleeve, angular wheel, shaft coupling successively; Described vertical spindle is made up of upper axle and lower shaft, described Upper shaft sleeve is located on the flat die disks in upper, middle and lower-ranking extrusion forming device, in its output difference upper, middle and lower-ranking extrusion forming device, the fixed axis of pressing wheel mechanism connects, and described upper the tip of the axis is fixedly connected on the bearing of pressing wheel mechanism in lower floor's extrusion forming device; Described lower shaft adopts upper support component and lower support parts to be arranged in frame, and described upper support component is taper roll bearing, and described lower support parts are that the bearing of thrust roller bearing and deep groove ball bearing combines.
Above-mentioned vertical type biomass extrusion moulding machine, wherein, upper, middle and lower feed bin is provided with in the outside of described upper, middle and lower-ranking extrusion forming device, the top of described upper and lower feed bin is provided with charging aperture, the charging aperture of described blanking bin is corresponding with the discharging opening of pressing mechanism in the extrusion forming device of described upper strata, and described blanking bin is provided with storehouse bin gate.
Compared with prior art, the present invention has the following advantages:
1, extrusion forming device is overlapped by arranging upper, middle and lower three, realize, secondary preliminary to material and again roll pulverizing, to change the pliability of material, improve the extruded effect of material to greatest extent, and lowering energy consumption and the wearing and tearing of equipment, the straw kind biomass material that fibrousness can be made larger reaches best extruded effect;
2, owing to having additional heater in flat die disks c, ensure under damp and cold working environment and/or for some special materials, still normally can grind to rub and pulverize with extruded, improve the adaptability to material and environment, in addition, the effect of material drying briquetting is also played;
3, by arranging the nib aperture difference of upper, middle and lower three flat die disks, realizing feed difference, improving extruded efficiency to greatest extent;
4, due to the pressing wheel mechanism of mutually isostructural upper, middle and lower-ranking can be adopted, make it have interchangeability, and its mounting means all have employed fast packing technique, dismounting can be realized rapidly when no matter normally changing or occur that unexpected vexed machine needs to pull down pressing wheel mechanism, improve the continuous production rate of equipment.
5, on hermetically-sealed construction, adopt combined labyrinth and carbon gland, the reliability of equipment and the service life of extension device can be improved.
Accompanying drawing explanation
Fig. 1 is the present invention's three layers of extrusion forming device structure chart;
Fig. 2 is the top view of flat die disks a or flat die disks b in Fig. 1;
Fig. 3 is the sectional view of flat die disks c in Fig. 1;
Fig. 4 is the structure chart of pressing wheel mechanism in Fig. 1;
Fig. 5 is vertical type biomass extrusion moulding machine structure chart of the present invention.
Main element symbol description is as follows:
Extrusion forming device 2-middle level, 1-upper strata extrusion forming device
3-lower floor extrusion forming device 4-flat die disks a 5-pressing wheel mechanism a
6-flat die disks b 7-pressing wheel mechanism b 8-flat die disks c
9-pressing wheel mechanism c 10-nib 11-heater
12-left pinch roller 13-right pinch roller 14-wheel pressing shaft
15-upper axle 16-lower shaft 17-bearing
18-upper support component 19-lower support parts 20-angular wheel
Feed bin in 21-shaft coupling 22-feeding bin 23-
24-blanking bin 25-feed bin door
Detailed description of the invention
As shown in Figures 1 to 4, the invention provides a kind of three layers of extrusion forming device, by the upper strata extrusion forming device 1 be arranged in order from top to bottom, middle level extrusion forming device 2 and lower floor's extrusion forming device 3, upper strata extrusion forming device is made up of pressing wheel mechanism a5 and the flat die disks a4 be arranged on bottom it, upper strata extrusion forming device is used for tentatively rolling pulverizing to material, to change the pliability of material; Middle level extrusion forming device is made up of pressing wheel mechanism b7 and the flat die disks b6 be arranged on bottom it, and middle level extrusion forming device is shaping for carrying out secondary extrusion to material, to improve the extruded effect of material; Lower floor's extrusion forming device is made up of pressing wheel mechanism c9 and the flat die disks c8 be arranged on bottom it, lower floor's extrusion forming device is used for carrying out stone roller to material and rubs pulverizing with extruded, to remove the moisture in moist material, flat die disks c inside is provided with for being heated moist material, to remove the heater 11 of its moisture.The axes coincide of flat die disks a, flat die disks b and flat die disks c, on any one flat die disks above-mentioned, with its center of circle for basis point is furnished with two row's nibs 10, the lower port of nib forms the discharging opening of this layer of extrusion forming device.In addition, in two adjacent flat die disks, the aperture of its nib is different, with realize nib aperture difference and feed poor, to improve extruded efficiency.Be specially, in flat die disks a, the minimum-value aperture of nib is greater than the minimum-value aperture of nib in flat die disks b.
Wherein, in flat die disks a and flat die disks b, the cross section of nib is circular, and in nib, from top to bottom the length of its internal diameter is identical.In flat die disks c, the cross section of nib is taper, as up big and down small bellmouth.Adopt this kind of project organization can improve the effect extruded to bulk material.
Any one above-mentioned pressing wheel mechanism can comprise the wheel pressing shaft 14 of horizontal-extending and be connected to left pinch roller 12, the right pinch roller 13 at wheel pressing shaft two ends respectively by bearing.As aperture and keyway with main shaft journal engagement place, with realize main shaft with corresponding pressing wheel mechanism bearing between key connect.The structure of the connecting interface on the bearing of any one above-mentioned pressing wheel mechanism generally can be identical, pressing wheel mechanism a, pressing wheel mechanism b, pressing wheel mechanism c is made to have interchangeability, to facilitate installation, reduce part specifications, and without the need to repair and fast changeable when being conducive to pressing wheel mechanism maintenance, simplify maintenance process, save man-hour, reduce labour intensity.
As shown in Figure 5, the present invention also provides a kind of vertical type biomass extrusion moulding machine, mainly comprise main shaft and three layers of extrusion forming device, wherein, three layers of extrusion forming device are by the upper strata extrusion forming device 1 be arranged in order from top to bottom, middle level extrusion forming device 2 and lower floor's extrusion forming device 3, upper strata extrusion forming device is made up of pressing wheel mechanism a5 and the flat die disks a4 be arranged on bottom it, and upper strata extrusion forming device is used for tentatively rolling pulverizing to material, to change the pliability of material; Middle level extrusion forming device is made up of pressing wheel mechanism b7 and the flat die disks b6 be arranged on bottom it, and middle level extrusion forming device is shaping for carrying out secondary extrusion to material, to improve the extruded effect of material; Lower floor's extrusion forming device is made up of pressing wheel mechanism c9 and the flat die disks c8 be arranged on bottom it, lower floor's extrusion forming device is used for carrying out stone roller to material and rubs pulverizing with extruded, to remove the moisture in moist material, flat die disks c inside is provided with for being heated moist material, to remove the heater 11 of its moisture.The axes coincide of flat die disks a, flat die disks b and flat die disks c, on any one flat die disks above-mentioned, with its center of circle for basis point is furnished with two row's nibs 10, the lower port of nib forms the discharging opening of this layer of extrusion forming device.In addition, in two adjacent flat die disks, the aperture of its nib is different, with realize nib aperture difference and feed poor, to improve extruded efficiency.Be specially, in flat die disks a, the minimum-value aperture of nib is greater than the minimum-value aperture of nib in flat die disks b.
Wherein, in flat die disks a and flat die disks b, the cross section of nib is circular, and in nib, from top to bottom the length of its internal diameter is identical.In flat die disks c, the cross section of nib is taper, as up big and down small bellmouth.Adopt this kind of project organization can improve the effect extruded to bulk material.
Any one above-mentioned pressing wheel mechanism can comprise the wheel pressing shaft 14 of horizontal-extending and be connected to left pinch roller 12, the right pinch roller 13 at wheel pressing shaft two ends respectively by bearing.As aperture and keyway with main shaft journal engagement place, with realize main shaft with corresponding pressing wheel mechanism bearing between key connect.The structure of the connecting interface on the bearing of any one above-mentioned pressing wheel mechanism generally can be identical, pressing wheel mechanism a, pressing wheel mechanism b, pressing wheel mechanism c is made to have interchangeability, to facilitate installation, reduce part specifications, and without the need to repair and fast changeable when being conducive to pressing wheel mechanism maintenance, simplify maintenance process, save man-hour, reduce labour intensity.
The end of vertical spindle is connected with motor shaft by axle sleeve 20, angular wheel 21, shaft coupling 22 successively; Vertical spindle is made up of with lower shaft 16 upper axle 15, upper axle 15 is set on flat die disks a4, flat die disks b6, flat die disks c8, its output is connected with the fixed axis of pressing wheel mechanism a5, pressing wheel mechanism b7, pressing wheel mechanism c9 respectively, and the end of upper axle 15 is fixedly connected on the bearing 17 of pressing wheel mechanism c.
Lower shaft 16 adopts upper support component 18 to be arranged in frame with lower support parts 19, and upper support component 18 is taper roll bearing, and lower support parts 19 are that the bearing of thrust roller bearing and deep groove ball bearing combines.Above-mentioned bearing support pattern, can meet driving shaft and meet axially and radial load load bearing requirements simultaneously, make main shaft reliable operation and stablize.
Taper roll bearing adopts the combination sealing mode of outside framework oil seal, and the bearing of thrust roller bearing and deep groove ball bearing combines and adopts skeleton oil seal mode.Can prevent dust and impurity from entering in the mechanical connection position of forming machine by above-mentioned two kinds of sealing means, avoid dust and impurity to destroy transmission accuracy, cause mechanical disorder, reduce equipment life, shorten maintenance cycle, increase maintenance cost.
Pressing wheel mechanism a, b and c can be fastened on upper axle by rapid dismounting apparatus, when normal maintenance or forming machine meet accident vexed machine, can pull down maintenance rapidly or change pressing wheel mechanism, therefore can the power generating ratio time, improve the continuous production rate of equipment.
Rapid dismounting apparatus can adopt following structure: comprise two semiorbicular limiting plates, an end cap and (or multiple) screw.
Two limiting plates are all not more than the semicircular of 180 ° in central angle, be inserted on the outer groove at axle top respectively, its outer rim from upper axle sidewall outwardly, end cap is by the top of screw fastening axle on corresponding, the inner surface of its side keeps off the outer rim at limiting plate, and bearing is provided with the connecting portion of connecting interface below limiting plate.
When fastening pressing wheel mechanism, first limiting plate is plugged on outer groove, the outer rim of limiting plate highlights from upper axle, below connecting portion on the bearing of corresponding pressing wheel mechanism is arranged on, avoid pressing wheel mechanism to move axially, and then be sleeved on upper axle by end cap from the top of upper axle, the inner surface gear of end casing sidewall is at the outer rim place of limiting plate, limiting plate is avoided to come off from cannelure, to realize the fixing of limiting plate; Then, be fastened on upper axle with screw by end cap, be normally provided with a through hole at end cap top, screw is screwed on the axle head of main shaft through this through hole.When dismantling pressing wheel mechanism, first backing out screw, then taking off end cap, then taking off two semiorbicular limiting plates.External diameter due to limiting plate is greater than the external diameter of the main shaft of described outer groove both sides, and above-mentioned rapid dismounting apparatus can limit the relative displacement of the axis of main shaft and pressing wheel mechanism effectively.Only through once extruding and plastic material, also need can use this forming machine for routine, pull down upper, middle and lower-ranking extrusion forming device, minimizing electric quantity consumption by speed and convenience.
Be provided with feeding bin 23, middle feed bin 24, blanking bin 25 in the outside of upper, middle and lower-ranking extrusion forming device, wherein, feeding bin is used as tentatively to roll the space with comminuting matter, and blanking bin is as the space of further extruded material.Be provided with charging aperture on the top of upper and lower feed bin, the charging aperture of blanking bin is corresponding with the discharging opening of upper strata pressing mechanism, and the discharging opening of upper strata pressing mechanism is communicated with blanking bin.For the ease of observing material situation and cleaning material, the bulkhead of blanking bin is provided with feed bin door 26.
Only as described above, be only preferred embodiment of the present invention, such as professional who are familiar with this art. and after understanding technological means of the present invention, natural energy, according to actual needs, is changed under the teachings of the present invention.Therefore all equal changes of doing according to the present patent application the scope of the claims and modification, once should still remain within the scope of the patent.
Claims (10)
1. three layers of extrusion forming device, comprise upper strata extrusion forming device and lower floor's extrusion forming device, described extrusion forming device is made up of pressing wheel mechanism and the flat die disks be arranged on bottom it, it is characterized in that, also comprise the middle level extrusion forming device be arranged between upper strata extrusion forming device and lower floor's extrusion forming device, described upper strata extrusion forming device is used for tentatively rolling pulverizing to material, to change the pliability of material; Described middle level extrusion forming device is shaping for carrying out secondary extrusion to material, to improve the extruded effect of material; Described lower floor extrusion forming device be used for material carry out third time grind rub pulverize and extruded, to remove the moisture in moist material;
The axes coincide of flat die disks in upper, middle and lower-ranking extrusion forming device, on described flat die disks with its center of circle for basis point is furnished with two row's nibs, the lower port of described nib forms discharging opening;
In the flat die disks of described upper strata extrusion forming device and described middle level extrusion forming device, the cross section of nib is circular, and in the flat die disks of described lower floor extrusion forming device, the cross section of nib is up big and down small bellmouth.
2. three layers of extrusion forming device according to claim 1, is characterized in that, in two adjacent flat die disks, the aperture of nib is different, with realize nib aperture difference and feed poor, to improve extruded efficiency.
3. three layers of extrusion forming device according to claim 2, is characterized in that, are provided with for heating moist material in the flat die disks in described lower floor extrusion forming device, to remove the heater of its moisture.
4. three layers of extrusion forming device according to claim 3, it is characterized in that, described pressing wheel mechanism comprises the wheel pressing shaft of horizontal-extending and is connected to the left and right pinch roller of the described wheel pressing shaft left and right sides respectively by bearing, and the middle part of described wheel pressing shaft is arranged on the bearing of corresponding pressing wheel mechanism.
5. one kind is provided with the vertical type biomass extrusion moulding machine of three layers of extrusion forming device described in claim 1, comprise extrusion forming device, it is characterized in that, described extrusion forming device is layer extrusion forming device of three described in claim 1, is made up of successively upper, middle and lower-ranking extrusion forming device; The axes coincide of flat die disks in upper, middle and lower-ranking extrusion forming device, on described flat die disks with its center of circle for basis point is furnished with two row's nibs, the lower port of described nib forms discharging opening;
In the flat die disks of described upper strata extrusion forming device and described middle level extrusion forming device, the cross section of nib is circular, and in the flat die disks of described lower floor extrusion forming device, the cross section of nib is up big and down small bellmouth.
6. vertical type biomass extrusion moulding machine according to claim 5, is characterized in that, in two adjacent flat die disks, the aperture of nib is different, with realize nib aperture difference and feed poor, to improve extruded efficiency.
7. vertical type biomass extrusion moulding machine according to claim 6, is characterized in that, is provided with for heating moist material in the flat die disks in described lower floor extrusion forming device, to remove the heater of its moisture.
8. vertical type biomass extrusion moulding machine according to claim 7, it is characterized in that, described pressing wheel mechanism comprises the wheel pressing shaft of horizontal-extending and is connected to the left and right pinch roller of the described wheel pressing shaft left and right sides respectively by bearing, the middle part of described wheel pressing shaft is arranged on the bearing of corresponding pressing wheel mechanism, the bearing of described upper and lower lamination wheel mechanism is respectively equipped with for realizing the connecting interface be in transmission connection, and the structure of described connecting interface on two pressing wheel mechanism bearings is identical.
9. according to described vertical type biomass extrusion moulding machine arbitrary in claim 5 to 8, it is characterized in that, be also provided with vertical spindle, the end of described vertical spindle is connected with motor shaft by axle sleeve, angular wheel, shaft coupling successively;
Described vertical spindle is made up of upper axle and lower shaft, described Upper shaft sleeve is located on the flat die disks in upper, middle and lower-ranking extrusion forming device, in its output difference upper, middle and lower-ranking extrusion forming device, the fixed axis of pressing wheel mechanism connects, and described upper the tip of the axis is fixedly connected on the bearing of pressing wheel mechanism in lower floor's extrusion forming device;
Described lower shaft adopts upper support component and lower support parts to be arranged in frame, and described upper support component is taper roll bearing, and described lower support parts are that the bearing of thrust roller bearing and deep groove ball bearing combines.
10. vertical type biomass extrusion moulding machine according to claim 9, it is characterized in that, upper, middle and lower feed bin is provided with in the outside of described upper, middle and lower-ranking extrusion forming device, the top of described upper and lower feed bin is provided with charging aperture, the charging aperture of described blanking bin is corresponding with the discharging opening of pressing mechanism in the extrusion forming device of described upper strata, and described blanking bin is provided with storehouse bin gate.
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| CN201310320787.5A CN103434178B (en) | 2013-07-26 | 2013-07-26 | Three layers of biomass extrusion molding device and vertical type biomass extrusion moulding machine |
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| CN201310320787.5A CN103434178B (en) | 2013-07-26 | 2013-07-26 | Three layers of biomass extrusion molding device and vertical type biomass extrusion moulding machine |
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| CN103434178B true CN103434178B (en) | 2015-09-30 |
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| CN108552524A (en) * | 2018-06-26 | 2018-09-21 | 临泉县森茂农业有限责任公司 | A kind of more specification machine for forming vermicelli |
| CN114410361B (en) * | 2022-02-11 | 2022-10-25 | 福建竹家女工贸有限公司 | Bamboo charcoal rod hardness modification process |
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| CN202336471U (en) * | 2011-10-31 | 2012-07-18 | 台州登尚机电有限公司 | Three-level boosting grinding device of food waste disposer |
| CN202884959U (en) * | 2012-11-12 | 2013-04-17 | 南阳市亚龙筑路机械制造有限公司 | Big double-suction three-grinding high pressure impeller coal mill |
| CN203410066U (en) * | 2013-07-26 | 2014-01-29 | 北京奥科瑞丰新能源股份有限公司 | Three-layer biomass extrusion forming device and vertical biomass extrusion forming machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DK559184A (en) * | 1983-11-25 | 1985-05-26 | Howaldtswerke Deutsche Werft | Two-stage pelletizer |
| DE3344044A1 (en) * | 1983-12-06 | 1985-06-20 | Amandus Kahl Nachf. (GmbH & Co), 2057 Reinbek | Method and device for compressing powdered or similar substances |
| CN201073607Y (en) * | 2007-05-12 | 2008-06-18 | 绵阳高新区巨子超微科技有限公司 | Mechanical type ring-milling crush classer |
| CN102049807A (en) * | 2009-12-28 | 2011-05-11 | 北京奥科瑞丰机电技术有限公司 | Vertical double-layer biomass extrusion moulding machine |
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