CN202573054U - Molding die of biomass molding fuel - Google Patents
Molding die of biomass molding fuel Download PDFInfo
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- CN202573054U CN202573054U CN 201220120645 CN201220120645U CN202573054U CN 202573054 U CN202573054 U CN 202573054U CN 201220120645 CN201220120645 CN 201220120645 CN 201220120645 U CN201220120645 U CN 201220120645U CN 202573054 U CN202573054 U CN 202573054U
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- gear
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- mould
- biomass material
- molding fuel
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Abstract
The utility model discloses a molding die of biomass molding fuel. When gears are engaged, a cutting effect on a biomass material stored in a top cutting region is generated and a cutting force can be decomposed into an axial component force along a molding hole so as to push the biomass material into the molding hole, so that an extruding effect is obviously improved. An inner engaged gear type molding die disclosed by the utility model has the advantages of simple structure, long service life, less energy consumption and capability of being continuously operated, and solves the technical problem to be solved in a biomass molding fuel manufacturing technology.
Description
Technical field
The utility model belongs to new energy field, is specifically related to be used to make a kind of mould of biomass molding fuel.
Technical background
The energy is the material base that the mankind depend on for existence, is the primary condition of the national economic development.China is energy-consuming big country; Energy supply mainly relies on non-renewable fossil energies such as coal, oil and natural gas; And the immense pressure that the finiteness of fossil energy resource and development and use process thereof cause environmental ecology is seriously restricting continuous development of society economy.Renewable Energy Development is the important technology approach of sustainable development that realizes comprehensive utilization and the economic society of natural resources.
So-called biomass energy (biomass energy) is that green plants is that chemical energy is stored in the inner energy of living beings through chlorophyll with conversion of solar energy, is a kind of regenerative resource, also is unique a kind of regenerative resource.
So-called biomass molding fuel be with draft or woody biomass material through the mechanical-physical effect, be processed into the granular fuel of shape such as cylindrical, tubular.
It is the forming technique of the biomass molding fuel of raw material that Europe has taken the lead in developing with the wood chip, is that the biomass molding fuel of raw material is widely used in European countries such as Germany, Denmark, Sweden, Italy with the wood chip.
Utilizing on the mode of biomass energy, gaseous state, liquid state and solid-state three kinds are arranged, solid-state biomass molding fuel is the industrialization direction that market prospects are arranged most.According to " the medium-term and long-term development plan of regenerative resource " of the promulgation National Development and Reform Commission of the People's Republic of China (PRC) in September, 2007, to the year two thousand twenty, Chinese biological matter shaped fuel year utilization will reach 5,000 ten thousand tons.
The dried calorific value of biomass material generally at 3500kcal/kg between the 5000kcal/kg, wherein with bamboo wood for the highest.The bamboo wood and the raw coal of 1 kilogram of drying are suitable, and its calorific value is about 5000kcal/kg, are equivalent to 0.714 kilogram of raw coal (calorific value of standard coal is 7000kcal/kg, and the per kilogram raw coal is equivalent to 0.7143 kilogram of standard coal).
Piston type make-up machine, spiral make-up machine, roller press type make-up machine are the capital equipments of making biomass molding fuel.
Different with draft agricultural waste materials such as rice husk, straws, the calorific value of biomass materials such as bamboo bits, wood chip is higher, but difficult forming; Mould very easily weares and teares; Bearing breaks and happens occasionally, and is difficult to continuous operation, thereby causes maintenance cost high; Energy resource consumption is big, has improved the manufacturing cost of biomass molding fuels such as bamboo bits, wood chip greatly.
For these make-up machines of biomass molding fuel, mould with become the technical problem that needs to be resolved hurrily in the biomass molding fuel manufacturing technology based on the forming method of this mould.
Patent of invention (invention number: 201110274628.7) disclose a kind of with the mould of cylinder as pressure roller, patent of invention (invention number: 201110002215.3) disclose a kind of with the mould of gear as pressure roller.In foregoing invention, a pair of cylinder in built-in moulding hole or a pair of gear constitute the roller press type mould, and its basic forming method is:
Biomass material after the pulverizing gets into gap or the inter-lobe clearance between two gears between two cylinders, and because of the grinding pressure of pressure roller to material, thereby moulding is carried out in the moulding hole that causes material to be rolled getting in the pressure roller.
There are 3 major defects in above-mentioned roller press type mould and forming method:
What be used to when 1, rolling to store biomass material is the gap between a pair of pressure roller.Said gap is very little, thus roll at every turn get into the moulding hole biomass material seldom.
2, there are many spaces in biomass material inside, thereby is compressible.The compressibility of biomass material causes most of grinding pressure to be dissipated in these spaces, and the grinding pressure that acts on biomass material reduces greatly, the extruding force wretched insufficiency that produces when rolling, and squeezing effect is poor.
3, produced great frictional force in the forming process of biomass material in the moulding hole.For overcoming this frictional force, need sizable axial compression power.Yet, can not directly produce said axial compression power to material during the pressure roller running, mould very easily weares and teares, and bearing breaks and happens occasionally, and energy resource consumption is big, is difficult to continuous operation.
Summary of the invention
Produce the principle that cut on the top during based on gear drive, the utility model proposes a kind of inside engaged gear formula mould, is used to make biomass molding fuel.
The technical scheme of the utility model is following.
A kind of mould of biomass molding fuel comprises by first gear of engagement in mutual and a pair of inside engaged gear formula pressure roller that second gear constitutes; Each gear teeth of said first gear are provided with some moulding hole vertically, and said moulding hole is used for the moulding of biomass material; Mesh in said second gear and first gear and first gear is produced the top and cut; Said first gear is the top gear cutting machine; The tooth of said top gear cutting machine is that the top cutting is wide; Said top cutting exterior feature is that the flank profil that forms after the part of standards flank profil is cut away on tooth top, cuts the district thereby form a top that is used to store biomass material respectively in the both sides, top of each gear teeth.
Said first gear and second gear are involute gear, and the number of teeth of said second gear is 8～12.
The standard flank profil of the tooth root portion of said first gear is connected by one section smooth easement curve with the top cutting exterior feature of tooth.
Each teeth groove root of said first gear also is provided with the moulding hole vertically.
Said moulding hole comprises crush zone and curing area; Said crush zone is common taper hole, and the compression ratio of said curing area is 4.5～6.
Said crush zone is the streamlined taper hole.
With the prior art contrast, the beneficial effect that the utility model produces is:
1, in the prior art, biomass material is stored in the inter-lobe clearance or in the cylinder gap.Said gap is less, and the biomass material of storage is few.In the present invention, biomass material is stored in the top and cuts in the district, and the biomass material of storage is many.
2, prior art relies on the grinding pressure of the gear teeth or cylinder generation that biomass material is expressed in the shaped hole.Because the compressibility of biomass material, most of grinding pressure is dissipated in the space between the biomass material, the extruding force wretched insufficiency that produces when rolling, and squeezing effect is poor.In the present invention, produce shear action to being stored in the biomass material of cutting in the district on the top during gears engaged, its cutting force can be decomposed into the axial compression power along the moulding hole, and the biomass material extruding is got in the moulding hole, has significantly improved squeezing effect.
3, the inside engaged gear formula mould that proposes of the present invention, simple in structure, long service life, energy resource consumption are few, can move continuously, have solved the technical problem that needs to be resolved hurrily in the biomass molding fuel manufacturing technology.。
Description of drawings
Fig. 1 is the principle schematic of the inside engaged gear formula mould of the specific embodiment;
Fig. 2 is the flank profil sketch map of the top gear cutting machine of Fig. 1;
Fig. 3 is the moulding hole distribution schematic diagram vertically of Fig. 1;
Fig. 4 is the sketch map in the common taper moulding hole of Fig. 1;
Fig. 5 is the sketch map in another kind of streamlined moulding hole.
The specific embodiment
During with the less pinion cutter machining interal of the number of teeth, undercut can take place in the addendum angle of internal gear and the tooth root of pinion cutter, and the addendum angle of internal gear is cut a part by pinion cutter and the top takes place cuts phenomenon.The number of teeth of pinion cutter is fewer, and the top of internal gear is cut more serious.
The tooth top is cut away the flank profil that forms after the part of standards flank profil and is referred to as top cutting exterior feature.Exist cutting wide gear in top to be referred to as the top gear cutting machine.
In gear drive, cut producing serious interference on the top, and gear or stuck or damage cause the transmission failure.For this reason, when cutting on the appearance top, prior art is taked many technological means, to avoid producing the top gear cutting machine.
The utility model is used to push biomass material with the gear meshing motion, and the top is cut and can be produced top shear force, helps the extrusion modling of biomass material.Thereby the present invention constitutes inside engaged gear formula pressure roller mould according to top tangent condition processing top gear cutting machine with another master gear.
A kind of specific embodiment is as shown in Figure 1.For guaranteeing the stationarity of gear motion, have at least a pair of above gear teeth to mesh simultaneously.First gear 1 and the interior each other engagement of second gear 2 constitute a pair of inside engaged gear formula pressure roller, and wherein first gear 1 is the top gear cutting machine.
For involute gear, to cut for producing the top, the number of teeth of second gear 2 generally can be taken as 8～12.
The top gear cutting machine of first gear 1 for having shaped, its flank profil is divided into two sections of a b, c d, and a b is the standard flank profil, and c d is that the top cutting is wide.Dotted line among the figure is for by the top standard flank profil of cutting, and it is referred to as to push up with zone between the top cutting exterior feature cuts the district.The district is cut on the top has two.
As shown in Figure 3, each gear teeth of first gear 1 are provided with some moulding hole 3 vertically; Each teeth groove root of first gear 1 also is provided with some moulding hole 3 vertically.
In the middle of the cavity entering inside engaged gear formula pressure roller of biomass material 4 by first gear 1, be stored in the inter-lobe clearance.
When inside engaged gear formula pressure roller produced gear motion, the biomass material that is stored in the inter-lobe clearance was rolled.Because the compressibility of biomass material, most of grinding pressure is dissipated in the space between the biomass material, and the extruding force that rolls generation is not enough, and squeezing effect is poor.
In present technique embodiment, the biomass material in inter-lobe clearance, most of biomass material is stored in the top of first gear 1 and cuts in the district.When inside engaged gear formula pressure roller produces gear motion; 2 pairs first gears of second gear 1 produce the top and cut; Produce shear action to being stored in the biomass material of cutting in the district on first gear, 1 top; Its cutting force can be decomposed into the axial compression power of 3 directions along the moulding hole, and the biomass material extruding is got in the moulding hole 3.
The structure in moulding hole 3 is as shown in Figure 3.Wherein, crush zone 3-1 is a common taper hole shown in Figure 3, and curing area 3-2 is a circular hole.In crush zone 3-1, biomass material is squeezed into curing molding among the curing area 3-2.The length-to-diameter of circular hole is called compression ratio among the curing area 3-2; The diameter of circular hole is generally 8mm; Compression ratio is generally 4.5～6, if the length of circular hole is long among the curing area 3-2, and then reaming, as shown in Figure 2.
Particularly, crush zone 3-1 is a streamlined taper hole shown in Figure 4, to reduce axial friction, increases radial compression power.
Frictional force when being pressed into moulding hole 3 for reducing biomass material, the standard flank profil ab of first gear 1 is connected with one section smooth easement curve b c with the wide c d of the top cutting at top.
In above-mentioned inside engaged gear formula pressure roller, first gear 1 or second gear 2 all can be used as driving wheel.The other technologies problem, for example, the connected mode of inside engaged gear formula pressure roller and motor, the configuration of bearing, fit, speed regulating method etc. is routine techniques.
The inside engaged gear formula mould that adopts the utility model to propose can be used for the biomass material of difficult forming such as bamboo bits, wood chip, the biomass material that particularly bamboo bits content is high or 100% bamboo bits constitute.
At the utility model, biomass material also comprises agricultural waste materials such as rice husk, straw, Chinese silvergrass, huge bacterium grass equal energy source grass.
At the utility model, need not any additives and cementing agent in the biomass material, die life is long, production efficiency is high, energy resource consumption is little.
Adopt the technical scheme of forming method of biomass molding fuel of above-mentioned mould following:
Step (1), with biomass material pulverizing, stirring, superheated steam softening and dry (moisture content is below 30%).Biomass material 4 is got into inside engaged gear formula mould from charging aperture;
Step (2), the running of inside engaged gear formula mould; Biomass material 4 rotates the top that gets into and be stored in second gear 1 with gear and cuts the district, and the top shear force that produces when second gear 2 and 1 engagement of first gear will be stored in biomass material 4 extruding of cutting in the district on the top and get in the moulding hole 3 of first gear 1;
Step (3), biomass material 4 push in the crush zone in moulding hole 3 and are shaped fuel;
Step (4), shaped fuel solidify in the curing area in moulding hole 3;
Discharge fractures in the middle part through hole of step (5), shaped fuel entering gear 1.
Above content is the further explain that combines concrete preferred implementation that the utility model is done, and can not assert that the practical implementation of the utility model is confined to these explanations.Those of ordinary skill for technical field under the utility model; Under the prerequisite that does not break away from the utility model design; Some simple deduction or replace can also be made, for example, spur gear or helical gear can be adopted; Can also adopt various pitch curve and make top gear cutting machine etc., all should be regarded as belonging to the protection domain of the utility model according to different top tangent conditions.
Claims (6)
1. the mould of a biomass molding fuel comprises by first gear (1) of interior engagement each other and a pair of inside engaged gear formula pressure roller of second gear (2) formation; Each gear teeth of said first gear (1) are provided with some moulding hole (3) vertically, and said moulding hole (3) is used for the moulding of biomass material (4); It is characterized in that:
Said second gear (2) produces the top to first gear (1) and cuts; Said first gear (1) is the top gear cutting machine; The tooth of said top gear cutting machine is that the top cutting is wide; Said top cutting exterior feature is that the flank profil that forms after the part of standards flank profil is cut on tooth top, cuts the district thereby form a top that is used to store biomass material respectively in the both sides, top of each gear teeth.
2. the mould of biomass molding fuel as claimed in claim 1, its characteristic is that also said first gear (1) and second gear (2) they are involute gear, the number of teeth of said second gear (2) is 8～12.
3. the mould of biomass molding fuel as claimed in claim 1, its characteristic is that also the standard flank profil of the tooth root portion of said first gear (1) is connected by one section smooth easement curve with the top cutting exterior feature of tooth.
4. the mould of biomass molding fuel as claimed in claim 1, its characteristic is that also each teeth groove root of said first gear (1) also is provided with moulding hole (3) vertically.
5. the mould of biomass molding fuel as claimed in claim 4, its characteristic is that also said moulding hole (3) comprises crush zone (3-1) and curing area (3-2); Said crush zone (3-1) is common taper hole, and the compression ratio of said curing area (3-2) is 4.5～6.
6. the mould of biomass molding fuel as claimed in claim 5, its characteristic is that also said crush zone (3-1) is the streamlined taper hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220120645 CN202573054U (en) | 2012-03-27 | 2012-03-27 | Molding die of biomass molding fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220120645 CN202573054U (en) | 2012-03-27 | 2012-03-27 | Molding die of biomass molding fuel |
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| Publication Number | Publication Date |
|---|---|
| CN202573054U true CN202573054U (en) | 2012-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220120645 Expired - Lifetime CN202573054U (en) | 2012-03-27 | 2012-03-27 | Molding die of biomass molding fuel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615849A (en) * | 2012-03-27 | 2012-08-01 | 江俊逢 | Forming mould and forming method of biomass briquette fuel |
| CN105109087A (en) * | 2015-08-12 | 2015-12-02 | 郑春山 | Multifunctional straw compressing forming machine |
-
2012
- 2012-03-27 CN CN 201220120645 patent/CN202573054U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615849A (en) * | 2012-03-27 | 2012-08-01 | 江俊逢 | Forming mould and forming method of biomass briquette fuel |
| CN102615849B (en) * | 2012-03-27 | 2014-12-24 | 江俊逢 | Forming mould and forming method of biomass briquette fuel |
| CN105109087A (en) * | 2015-08-12 | 2015-12-02 | 郑春山 | Multifunctional straw compressing forming machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121205 Effective date of abandoning: 20141224 |
|
| RGAV | Abandon patent right to avoid regrant |