CN106671474B - Improve the method and device of compressed biomass ratio of briquetting - Google Patents
Improve the method and device of compressed biomass ratio of briquetting Download PDFInfo
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- CN106671474B CN106671474B CN201710012800.9A CN201710012800A CN106671474B CN 106671474 B CN106671474 B CN 106671474B CN 201710012800 A CN201710012800 A CN 201710012800A CN 106671474 B CN106671474 B CN 106671474B
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- biomass
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- gas vent
- exhaust passage
- center line
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/22—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by pressing in moulds or between rollers
-
- 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
- B30B11/221—Extrusion presses; Dies therefor extrusion dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0005—Details of, or accessories for, presses; Auxiliary measures in connection with pressing for briquetting presses
- B30B15/0017—Deairing means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The present invention relates to agricultural equipment technology and biomass energy technology fields, and in particular to a kind of method and device improving compressed biomass ratio of briquetting.Including：Exhaust passage is carried between compressed biomass molding main-machine device, the shaping mould with gas vent, the shaping mould with gas vent and the body for being mounted to pattern, ensures the smooth of exhaust.The present invention is high with production efficiency, low energy consumption, good forming effect, and to rice husk, wheat stalk etc., some biomass materials for being difficult to compression forming have good adaptability, can be widely used for straw feed or biomass molding fuel processing technique field.
Description
Technical field
The present invention relates to a kind of biomass material treatment technology, the straw feed in especially a kind of biomass or biomass
Shaped fuel raw material die mould technology, specifically a kind of method and device improving compressed biomass ratio of briquetting.
Background technology
With the increase and improvement of living standard of world population, demand of the mankind to the energy is growing.Energy shortage
It is the ultimate challenge that human society faces to use the environmental pollution brought with fossil fuel.The development and utilization of regenerative resource is
Solve the problems, such as this key point.Biomass energy has unique advantage and huge exploitation profit as regenerative resource
Use potential.China generates a large amount of agricultural crop straw and forestry waste every year, except fewer parts is recycled, the overwhelming majority
It is abandoned in field or burial or directly burning.Rationally using biomass energies such as agriculture, woods wastes, can effectively solve to provide
Source wastes problem, alleviating energy crisis, and can reduce environmental pollution, and has preferable social benefit, economic benefit and Environmental Effect
Benefit.
Biomass Briquetting Technologies can pass through biomass as more ripe one of biomass recycling use technology
Dry, crushing, compression forming, become rodlike, blocky or granular shaped fuel and straw briquette feed.According to biomass
Raw material is different, and the density of molding mass is up to 0.80~1.35 g/cm3.As the energy, energy density is worked as with intermediate value coal facies, burning
Characteristic also has clear improvement before being relatively molded；As feed, it is suitably adapted for the raising of the ruminant animals such as ox, sheep.
Compressed biomass forming process is a more complicated process, and high temperature, high pressure are along with physics and chemical variation.
It is many to influence the molding factor of compressed biomass, such as the type of raw material, pretreatment early period, moisture content, forming temperature, molding pressure
Power, binder and additive etc..Domestic and international industry carries out the molding mechanism of compressed biomass, key technology and its key equipment
Extensive research, still, the problems such as the molding high energy consumption of compressed biomass, low production efficiency, bad molding effect, especially
The problem of being difficult to be molded for the lower biomass material of the content of lignin such as agricultural crop straw class and rice husk never obtains
It well solves, the serious industrialized development for restricting biomass molding fuel and stalk forming feed.
Invention content
The purpose of the present invention is be directed to the molding high energy consumption of existing compressed biomass, low production efficiency, molding effect not
Well, easily there is the problems such as decompression is puffing, especially for the lower biomass of the content of lignin such as agricultural crop straw class and rice husk
Raw material is difficult to the problem of being molded, and invents a kind of method and device improving compressed biomass ratio of briquetting.
One of technical scheme of the present invention is：
A method of compressed biomass ratio of briquetting being improved, it is characterized in that it includes the following steps：
First, an exhaust passage is set between molding die and molding main-machine body, and makes going out for the exhaust passage
Gas port is connected with feed inlet, is heated to biomass material using the heat of exhaust passage；
Secondly, gas vent is set in the cavity wall of guarantor's type section of molding die, biomass moulding is made to press steam in the block logical
It crosses the gas vent and is gradually discharged into exhaust passage to avoid biomass moulding briquetting when molding die is discharged that form steam puffing
Phenomenon improves forming effect.
It is 100~200 DEG C that the molding main-machine, which uses hot press forming technology, forming temperature scope,.
The moisture content of the biomass material ranging from 10%~25%.
The second half section of the compression forming section of the molding die is also provided with gas vent on one section of guarantor's type section.
The center line of the gas vent is less than 90 ° with the angle of die hole center line, and aperture is 2~5mm.
The center line of the gas vent is more than or equal to 45 ° with the angle of die hole center line, is less than 90 °.
Technical scheme of the present invention second is that：
A kind of device improving compressed biomass ratio of briquetting, it includes molding die 1, it is characterized in that the molding cross 1
Guarantor's type section 6 cavity wall on row have multiple gas vents 3, which is connected with exhaust passage 2, exhaust passage 2 be located at be molded
Between 1 outside of mold and molding main-machine body.
The center line of the gas vent 3 and the angle of die hole center line are more than or equal to 45 °, are less than 90 °, and aperture is 2~
5mm。
The center line of the gas vent 3 is identical as the angle of die hole center line or differs, and aperture is identical or differs.
Beneficial effects of the present invention：
1, the present invention is bad for the molding high energy consumption of the existing compressed biomass in China, low production efficiency, molding effect
The problems such as, it is difficult to molding ask especially for the lower biomass material of the content of lignin such as agricultural crop straw class and rice husk
Topic provides a kind of molding exhaust guarantor type technology of compressed biomass and device.
2, this technology and device use hot press forming technology, and select higher forming temperature and range（100~200
℃）Wider material water ratio range（10%~25%）, its advantage is that：
1）Higher material water ratio.The dust pollution in production process is reduced, production environment is improved.
2）Using higher forming temperature and moisture content, reduces energy consumption, improves production efficiency.
According to the moulding mechanism of biomass, under the action of the high temperature that external heating and extrusion friction generate, in material
Moisture quickly forms steam, accelerates the conduction of heat and carries out uniform quick heating to material so that the lignin in material
（A kind of natural binders）Fast softening and melt form colloid, itself and the mutual glue of adjacent particle can be made by being subject to certain pressure at this time
It connects, improves and cohere Forming Quality and effect, reduce briquetting pressure, and then improve production efficiency, reduce energy consumption and improve molding
Quality.
3）Wider material water ratio range reduces the manufacturing technique requirent to raw material, reduces production cost.
3, the present invention can effectively avoid the situation that biomass block shaped fuel can not be molded or molding effect is bad, improve
Production stability.
Moisture content and forming temperature is improved to act on the natural glue for playing lignin, improve biomass ratio of briquetting and
Relaxed density is advantageous.But with the raising of moisture content and forming temperature, there is the formation of a large amount of steam in forming process, work as life
Substance forming blocks（Particle）The phenomenon that " steam is puffing " is easily created when going out type causes biomass moulding block（Particle）At
Type effect is bad or can not even be molded.Therefore, stringent rule all have been carried out to the moisture content of material in conventional compact forming technique
It is fixed.
4, the present invention can be used for producing high ratio of briquetting, the biomass molding fuel of underrelaxation density or stalk briquette and raise
Material.The shaped fuel of making can effectively improve its combustion efficiency；The straw briquette feed being fabricated to, due to forming, relaxation
Density is low, brings good feeding effect.
So the present invention realizes moulding process and the relatively more perfect of moulding mechanism combines.
Description of the drawings
Fig. 1 is the structural schematic diagram of the molding die of the present invention.
In figure：1- molding dies, 2- exhaust passages, 3- gas vents, 4- precompressed sections, 5- profiled sections, 6- guarantor's type sections.
Fig. 2 is schematic view of the mounting position of the molding die of the present invention on biological substance compression molding machine.
Specific implementation mode
The present invention is further illustrated with reference to the accompanying drawings and examples.
Embodiment one.
As shown in Figure 1.
A method of compressed biomass ratio of briquetting being improved, it includes the following steps：
First, an exhaust passage 2 is set between molding die 1 and molding main-machine body, and molding main-machine uses hot pressing
Moulding process, forming temperature scope is 100~200 DEG C, and the gas outlet of the exhaust passage 2 is made to be connected with host feed inlet,
Using the heat of exhaust passage 2 to the biomass material of feed inlet（Such as wheat straw, rice straw, corn stalk, rice husk, feed
Grass etc., the moisture content ranging from 10%~25% of biomass material）It is heated；
Secondly, gas vent 2, center line and the die hole center of gas vent are set in the cavity wall of guarantor's type section 6 of molding die 1
The angle of line is less than 90 °, is most preferably more than or equal to 45 °, is less than 90 °, and aperture is 2~5mm, and the angle of each gas vent 2 can be equal,
Also can be unequal, aperture identical can also differ, as shown in Figure 1.Biomass moulding presses steam in the block that can pass through the exhaust
Hole 2 is gradually discharged into exhaust passage 2 forms the puffing phenomenon of steam to avoid biomass moulding briquetting when molding die is discharged, and carries
High forming effect.
Specific requirement implement when, can also the compression forming section of the molding die second half section close to the one of guarantor's type section
Also gas vent is provided in section.
Gas vent 2 is avoided that raw material penetrates into gas vent 2 in extrusion process using the angle less than 90 degree, and acute angle is advantageous
In generating dissection to raw material, prevent it from entering in gas vent, it can if being discharged into gas vent its even if there is part material to enter
It is discharged into exhaust passage under the impact of high steam, finally enters back into molding die.
Embodiment two.
A kind of device improving compressed biomass ratio of briquetting, it includes molding die 1, and the installation form of molding die 1 is such as
Shown in Fig. 2, row has multiple gas vents 3 in the cavity wall of guarantor's type section 6 of the molding cross 1, the gas vent 3 and 2 phase of exhaust passage
Connection, exhaust passage 2 are located between 1 outside of molding die and molding main-machine body.The center line and die hole of the gas vent 3
The angle of center line is more than or equal to 45 °, is less than 90 °, aperture is 2~5mm.The center line of the gas vent 3 and die hole center
The angle of line is identical or differs, and aperture is identical or differs.
Different according to the molding process of compressed biomass, the die hole of molding die can be divided into precompressed section 4, profiled section 5 and protect
6 three parts of type section, the outer end of guarantor's type section 6 is exactly outlet section.
The compressed biomass molding main-machine of the present invention is using hot press forming technology and structure.
In pressure roller or extrusion piston（Jumper bar）Under the action of, material initially enter precompressed section 4 and under the effect of external force by
Fast Compression, while material is heated under the action of the high temperature that external heating and extrusion friction generate；When biomass moulding pressure
When block is moved near profiled section 5, the lateral pressure acted on 5 cavity wall face of profiled section reaches maximum, and the friction that material is subject to is answered
Power is maximum, and under the action of the high temperature that external heating and extrusion friction generate, biomass moulding presses moisture in the block to quickly form
Steam accelerates the conduction of heat and carries out uniform quick heating to material so that the lignin in material（One kind is naturally cohered
Agent）Fast softening and melt form colloid, the friction stree and lateral pressure being subject to due to material at this time reach maximum value, material
It is rapid that chemical bonding reaction occurs and is molded；When biomass moulding briquetting continues to move down in profiled section 5, and enter guarantor's type
During section 6, lateral pressure starts to gradually decrease, and friction stree also begins to decline and tend towards stability.Biomass moulding briquetting exists
When the end of guarantor's type section 6 goes out die hole, it is zero that lateral pressure and friction stree moment for acting on biomass moulding briquetting, which drops to,.
In standard biologic matter technology for compressing and forming and device, have due to containing largely in the briquetting of biomass moulding
The phenomenon that steam of certain pressure, biomass molding fuel is easily created " steam is puffing " when going out type, cause biomass
Shaped fuel can not be molded, even molding reluctantly, can also influence steady production, durability and the storage of biomass molding fuel
Effect.
In the present invention, after chemical bonding reaction occurs in profiled section 5 when biomass material and is molded, in profiled section 5
In continue to move down, and during entering guarantor's type section 6, molding die 1 at this time carries gas vent 3, due to molding die
The draw ratio of die hole do not change, lateral pressure and frictional force compared with routine techniques also without big variation, but biomass at
Type presses steam in the block to be gradually discharged from gas vent, when avoiding out type the phenomenon that formation " steam is puffing ", improves molding effect
Fruit.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Part that the present invention does not relate to is the same as those in the prior art or can be realized by using the prior art.
Claims (3)
1. a kind of method improving compressed biomass ratio of briquetting, it is characterized in that it includes the following steps：
First, an exhaust passage is set between molding die and molding main-machine body, and makes the gas outlet of the exhaust passage
It is connected with feed inlet, biomass material is heated using the heat of exhaust passage；
Secondly, gas vent is set in the cavity wall of guarantor's type section of molding die, makes biomass moulding that steam in the block be pressed to pass through this
Gas vent is gradually discharged into exhaust passage forms the puffing phenomenon of steam to avoid biomass moulding briquetting when molding die is discharged,
Improve forming effect；
The second half section of the compression forming section of the molding die is also provided with gas vent, the row on one section of guarantor's type section
The center line of stomata is less than 90 ° with the angle of die hole center line, and aperture is 2~5mm；
It is 100~200 DEG C that molding main-machine, which uses hot press forming technology, forming temperature scope,；The biomass material it is aqueous
Rate ranging from 10%~25%.
2. according to the method described in claim 1, it is characterized in that the angle of the center line of the gas vent and die hole center line
More than or equal to 45 °, it is less than 90 °.
3. a kind of device using the method for improving compressed biomass ratio of briquetting as described in claim 1, it includes molding die
（1）, it is characterized in that the molding die（1）Guarantor's type section（6）Cavity wall on row have multiple gas vents（3）, the gas vent（3）
With exhaust passage（2）It is connected, exhaust passage（2）Positioned at molding die（1）Between outside and molding main-machine body；The row
Stomata（3）The angle of center line and die hole center line be more than or equal to 45 °, be less than 90 °, aperture is 2~5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710012800.9A CN106671474B (en) | 2017-01-09 | 2017-01-09 | Improve the method and device of compressed biomass ratio of briquetting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710012800.9A CN106671474B (en) | 2017-01-09 | 2017-01-09 | Improve the method and device of compressed biomass ratio of briquetting |
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| Publication Number | Publication Date |
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| CN106671474A CN106671474A (en) | 2017-05-17 |
| CN106671474B true CN106671474B (en) | 2018-09-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108582849A (en) * | 2018-04-20 | 2018-09-28 | 内蒙古霍煤通顺碳素有限责任公司 | Use for laboratory prebaked anode sample preparation machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2903854Y (en) * | 2006-01-05 | 2007-05-23 | 马格彬 | Heating drying dehumidifying shaping cover |
| CN103317749A (en) * | 2013-07-12 | 2013-09-25 | 大石桥市承天新能源开发有限公司 | Speed changing type straw briquetting machine and application thereof |
| CN203792772U (en) * | 2014-04-01 | 2014-08-27 | 河北天太生物质能源开发有限公司 | Automatic exhaust module |
| CN204220113U (en) * | 2014-08-22 | 2015-03-25 | 苏州熙瑞新能源科技有限公司 | A kind of ring mould granulator exhaust gas treatment device |
-
2017
- 2017-01-09 CN CN201710012800.9A patent/CN106671474B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2903854Y (en) * | 2006-01-05 | 2007-05-23 | 马格彬 | Heating drying dehumidifying shaping cover |
| CN103317749A (en) * | 2013-07-12 | 2013-09-25 | 大石桥市承天新能源开发有限公司 | Speed changing type straw briquetting machine and application thereof |
| CN203792772U (en) * | 2014-04-01 | 2014-08-27 | 河北天太生物质能源开发有限公司 | Automatic exhaust module |
| CN204220113U (en) * | 2014-08-22 | 2015-03-25 | 苏州熙瑞新能源科技有限公司 | A kind of ring mould granulator exhaust gas treatment device |
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| CN106671474A (en) | 2017-05-17 |
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