CN102009422A - Crushing method for recycling bark resources - Google Patents
Crushing method for recycling bark resources Download PDFInfo
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- CN102009422A CN102009422A CN 201010531508 CN201010531508A CN102009422A CN 102009422 A CN102009422 A CN 102009422A CN 201010531508 CN201010531508 CN 201010531508 CN 201010531508 A CN201010531508 A CN 201010531508A CN 102009422 A CN102009422 A CN 102009422A
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- bark
- drum chipper
- belt conveyor
- breaking method
- fly cutter
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Abstract
The invention discloses a crushing method for recycling bark resources, which comprises the following steps of: (1) collecting barks and conveying to a belt conveyer; (2) conveying the barks to bark crushing equipment by using the belt conveyer; and (3) crushing the barks by using a drum chipper, and conveying the barks to a bark storehouse through the belt conveyer. By adopting the drum chipper, the bark crushing capacity and efficiency can be improved, the energy consumption can be reduced, particularly longer barks which contain bast fibers and are high in toughness and hardly crushed by the conventional crusher can be treated, and the energy consumption is reduced greatly.
Description
Technical field
The present invention relates to the pre-treating method of a kind of pulping and paper-making and wood working industry bark recycling, especially relate to a kind of breaking method of bark recycling.
Background technology
Produce solid biomass discarded objects such as bark, saw ash in the melting process of pulping and paper-making wood raw material, its calorific value is at 3000～4000kcal/kg, and water content mostly is 30%～75%; More, the most enterprise of biomass solid discarded object quantity is used for outer selling or landfill disposal more in the paper production process, become the difficult problem of environmental improvement, but these discarded objects are concentrated relatively, calorific capacity is not low, if scientifically fully utilize, can economize on resources, reduce pollution environment.In recent years, rising along with primary energy prices such as coals, utilize CFBB or biomass boiler that its burning is handled, produce steam and be used for generating and heat supply, it is good selection, granularity to bark when CFBB or biomass boiler burning has certain requirement, requires bark is pulverized.Existing in the market comparatively ripe bark is pulverized supply of equipment, as Chinese patent application numbers 200820231121.7, December 30 2008 applying date, open day on October 7th, 2009, denomination of invention is the utility model patent of " bark grinding mill ", the disclosed pulverizer of this patent document comprises base and the casing that is installed on the base, be provided with pulverizing chamber in the casing, this pulverizing chamber upper end is communicated with the material bin that is located at the casing upside, the lower surface is intermittently to be installed by several gratings to form, also be provided with hammer leaf in pulverizing chamber, hammer leaf is installed on the main shaft and by the motor drives that is installed on the base and rotates.As Chinese patent application numbers 200820000422.9, January 10 2008 applying date, open day on November 26th, 2008, denomination of invention is the utility model patent of " bark grinding mill ", the disclosed frame that comprises of this patent document, a pulverization cylinder that is made of cylinder is installed on frame, a cutterhead is installed in the pulverization cylinder, form between cutterhead edge and the pulverization cylinder inwall and pulverize annular space, place, cutterhead axle center is fixed with power transmission shaft, a motor drives described power transmission shaft by transmission mechanism and drives the cutterhead rotation, the fly cutter that has at least one handle to protrude in cutterhead and stretch out to described pulverization cylinder direction is hinged on the cutterhead edge, have at least a bed plate radially to be installed on the frame at the fly cutter lower position, the gap that is no more than 5mm is arranged between described fly cutter and the bed plate; In the position that is positioned on the frame below the bed plate discharging opening is arranged.Existing bark grinding mill is to fine such as needlebush bark such as masson pine, U.S. south pine and part leaf wood bark handling property, production efficiency is higher, and to such as leaf wood barks such as eucalyptus, willows, because of bark longer, contain bast fiber, toughness is big, is difficult for being pulverized by existing bark grinding mill, and production efficiency is extremely low, be everlasting and result in blockage in the bark grinding mill, the energy consumption height influences the safe operation of equipment, has increased working strength of workers.
The drum chipper of Chu Shouing in the market, it is the special equipment of preparation wood chip, extensively apply to the Chip Production of paper mill, particieboard factory, fibre-board plant, wood chip factory, drum chipper can cut into industrial wood chip with log, small dimension wood etc., can also cut brush wood, sheet material etc.Drum chipper is generally by support, rotor, feeding roller, conveyer belt, hydraulic system, discharging sieve plate etc. are partly formed up and down.Support adopts high pitched tune degree steel plate to be welded, and is the supporting basis of entire machine; Install two or many on the rotor,,, fly cutter is fixed on the rotor by pressure block with the special fly cutter bolt of making fly cutter; According to the different-thickness that is cut raw material, the upper feed roll assembly can fluctuate within the specific limits by hydraulic system; The qualified sheet stock that cuts falls by the sieve aperture of discharging sieve plate, discharges from the bottom, and big sheet stock will cut in machine again; Hydraulic system: to oil cylinder, can start case by the hand oil pump fuel feeding, be convenient to the replacing of blade, in maintenance, can lift the upper feed roll assembly, be convenient to adjust the gap of fly cutter, bed plate and the dismounting of discharging sieve plate.Effect was better when drum chipper was used for small dimension wood, wood machining residues cutting wood chip, stopped up but exist easily when cutting other material, and airborne dust is many, the technology barrier that production environment is bad.
Summary of the invention
In order to overcome the defective of prior art, technical problem to be solved by this invention is to provide the bark that a kind of energy consumption is low, production efficiency is high, airborne dust is few breaking method, the recycling of realization bark.
In order to solve the problems of the technologies described above, the basic technical scheme that the present invention adopts is:
A kind of breaking method of bark recycling may further comprise the steps: (1) is collected bark and is sent to infeed belt conveyor; (2) infeed belt conveyor is transported to the bark disintegrating apparatus with bark; (3) bark is pulverized after outfeed belt conveyor is sent to the bark storehouse through disintegrating apparatus, and its characteristics are: described bark disintegrating apparatus is a drum chipper.
Below for the further improvement project of basic technical scheme of the present invention:
One of improvement project: described drum chipper uneasiness when pulverizing bark takes on the material screen plate;
Two of improvement project: during work, the ratio of the fly cutter rotational line speed of installing on the speed that described infeed belt conveyor is carried bark and the drum chipper rotor is 1:34～1:38; Preferred 1250～1400 meters/minute of the fly cutter rotational line speed of installing on the drum chipper rotor;
Three of improvement project: the angle of the tool point angle of the fly cutter of described drum chipper is 30～34 degree;
Four of improvement project: the water content in the bark crushing process is 45%～60%;
Five of improvement project: locking magnet is installed above described infeed belt conveyor, is removed the metallics of carrying secretly in debarking;
Six of improvement project: spray water system is installed above described infeed belt conveyor, and the bark water content of regulating drum chipper is 45%～60%.
Above improvement project can be implemented separately, also can two and two above schemes combinations implement, described spray water system is simple, as the water pipe of a band control valve is installed, the those skilled in the art of liquid distribution own be need not to pay creative work can solve.
The invention has the beneficial effects as follows: adopt drum chipper can improve the grindability and the efficient of bark, cut down the consumption of energy, the power consumption of one ton of bark of every pulverizing uses bark grinding mill decline 12kwh～17kwh.Especially it is longer to handle bark, contains bast fiber, and toughness is big, is difficult for by the bark of existing bark grinding mill pulverizing, and as willow skin, eucalyptus bark etc., the energy consumption decline scope is bigger.In the improvement project: because of bark is littler than wood plate density, easily be interweaved after the pulverizing, be difficult for from the sieve plate discharging, drum chipper uneasiness when pulverizing bark takes on the material screen plate, can overcome putty appears in bark after the pulverizing in wood chipping equipment technical problem; The ratio of bark rate of feeding and the linear velocity of wood chipping equipment fly cutter is controlled at and is 1:34～1:38, the length of the bark after controlled powder process is broken is fit to the combustion requirements of boiler, reduce linear velocity simultaneously and help reducing and produce flying dust in the crushing process, improve the yield in the bark crushing process, improve environment; The angle of adjusting the tool point angle of drum chipper fly cutter is 30～34 degree, can reduce the wearing and tearing of cutter, improves the efficient of pulverizing simultaneously and reduce in the crushing process to produce flying dust; The water content of control bark is 45%～60%, can reduce producing flying dust in the crushing process.
The specific embodiment
Embodiment 1:
Take off the discharging sieve plate of drum chipper, adjust the rotating speed of the rotor of drum chipper, making the fly cutter linear velocity of installing on the rotor is 1400 meters/minute, and the conveying bark speed of infeed belt conveyor is 1:38 with the ratio of the fly cutter rotational line speed that drum chipper is installed; The knife edge angular of the fly cutter of drum chipper is 30 degree, with water content is that 45% eucalyptus skin is collected and is sent to belt conveyor, after the locking magnet of installing through bark conveyer top is removed metallics, belt conveyor is transported to drum chipper with this bark, this bark powder is broken into the material that length is no more than 5cm behind drum chipper, pulverizes after outfeed belt conveyor is sent to the bark storehouse.
Through the actual motion test, it is 28kwh that bark per ton is pulverized consumes power, uses bark grinding mill to pulverize and reduces power consumption 27kwh.
Embodiment 2:
Take off the discharging sieve plate of drum chipper, adjust the rotating speed of the rotor of drum chipper, making the fly cutter linear velocity of installing on the rotor is 1250 meters/minute, the conveying bark speed of infeed belt conveyor is 1:34 with the ratio of the fly cutter rotational line speed that drum chipper is installed, the knife edge angular of the fly cutter of drum chipper is 31.5 degree, with water content is that 51% eucalyptus skin is collected and is sent to belt conveyor, after the locking magnet of installing through bark conveyer top is removed metallics, belt conveyor is transported to drum chipper with this bark, this bark powder is broken into the material that length is no more than 5cm behind drum chipper, pulverizes after belt conveyor is sent to the bark storehouse.
Through the actual motion test, it is 30kwh that bark per ton is pulverized consumes power, uses bark grinding mill to pulverize and reduces power consumption 25kwh.
Embodiment 3:
Take off the discharging sieve plate of drum chipper, adjust the rotating speed of the rotor of drum chipper, making the fly cutter linear velocity of installing on the rotor is 1350 meters/minute, the conveying bark speed of infeed belt conveyor is 1:36 with the ratio of the fly cutter rotational line speed that drum chipper is installed, the knife edge angular of the fly cutter of drum chipper is 34 degree, with water content is that 60% poplar bark is collected and is sent to belt conveyor, after the locking magnet of installing through bark conveyer top is removed metallics, belt conveyor is transported to drum chipper with this bark, this bark powder is broken into the material that length is no more than 5cm behind drum chipper, pulverizes after belt conveyor is sent to the bark storehouse.
Through the actual motion test, it is 30kwh that bark per ton is pulverized consumes power, uses bark grinding mill to pulverize and reduces power consumption 25kwh.
Embodiment 4:
Adjust the rotating speed of the rotor of drum chipper, making the fly cutter linear velocity of installing on the rotor is 1300 meters/minute, the conveying bark speed of infeed belt conveyor is 1:35 with the ratio of the fly cutter rotational line speed that drum chipper is installed, the knife edge angular of the fly cutter of drum chipper is 32 degree, with water content is that 50% masson pine bark is collected and is sent to belt conveyor, belt conveyor is transported to drum chipper with this bark, this bark powder is broken into the material that length is no more than 5cm behind drum chipper, pulverizes after belt conveyor is sent to the bark storehouse.
Through the actual motion test, it is 33kwh that bark per ton is pulverized consumes power, uses bark grinding mill to pulverize and reduces power consumption 12kwh.
Embodiment 5
Take off the discharging sieve plate of drum chipper, adjust the rotating speed of the rotor of drum chipper, making the fly cutter linear velocity of installing on the rotor is 1350 meters/minute, the conveying bark speed of infeed belt conveyor is 1:36 with the ratio of the fly cutter rotational line speed that drum chipper is installed, the knife edge angular of the fly cutter of drum chipper is 33 degree, with water content is that 40% eucalyptus and foreign pine tree mixing bark are collected and be sent to belt conveyor, after the locking magnet of installing through bark conveyer top is removed metallics, belt conveyor is transported to drum chipper with this bark, above before advancing drum chipper, opening the bark conveyer shower water is installed, add a certain amount of water, make the bark moisture content bring up to 45%, this bark powder is broken into the material that length is no more than 5 cm behind drum chipper, pulverizes after belt conveyor is sent to the bark storehouse.
Through the actual motion test, it is 31kwh that bark per ton is pulverized consumes power, uses bark grinding mill to pulverize and reduces power consumption 14kwh, behind the adding shower water, can improve the yield rate 0.2% of bark in the crushing process, reduces the flying dust amount that bark produces in the crushing process.
Embodiment 6
Take off the discharging sieve plate of drum chipper, adjust the rotating speed of the rotor of drum chipper, making the fly cutter linear velocity of installing on the rotor is 1380 meters/minute, the conveying bark speed of infeed belt conveyor is 1:37 with the ratio of the fly cutter rotational line speed that drum chipper is installed, the knife edge angular of the fly cutter of drum chipper is 32 degree, with water content is that 42% alder bark is collected and is sent to belt conveyor, after the locking magnet of installing through bark conveyer top is removed metallics, belt conveyor is transported to drum chipper with this bark, above before advancing drum chipper, opening the bark conveyer shower water is installed, add a certain amount of water, make the bark moisture content bring up to 60%, this bark powder is broken into length and is no more than 5 cm particles behind drum chipper, pulverizes after belt conveyor is sent to the bark storehouse.
Through the actual motion test, it is 30kwh that bark per ton is pulverized consumes power, uses bark grinding mill to pulverize and reduces power consumption 15kwh, behind the adding shower water, can improve the yield rate 0.3% of bark in the crushing process, reduces the flying dust amount that bark produces in the crushing process.
Embodiment 7
Take off the discharging sieve plate of drum chipper, adjust the rotating speed of the rotor of drum chipper, making the fly cutter linear velocity of installing on the rotor is 1400 meters/minute, the conveying bark speed of infeed belt conveyor is 1:38 with the ratio of the fly cutter rotational line speed that drum chipper is installed, the knife edge angular of the fly cutter of drum chipper is 31.5 degree, with water content is that 44% masson pine bark is collected and is sent to belt conveyor, after the locking magnet of installing through bark conveyer top is removed metallics, belt conveyor is transported to drum chipper with this bark, above before advancing drum chipper, opening the bark conveyer shower water is installed, add a certain amount of water, make the bark moisture content bring up to 50%, this bark powder is broken into length and is no more than 5 cm particles behind drum chipper, pulverizes after belt conveyor is sent to the bark storehouse.
Through the actual motion test, it is 28kwh that bark per ton is pulverized consumes power, uses bark grinding mill to pulverize and reduces power consumption 17kwh, behind the adding shower water, can improve the yield rate 0.25% of bark in the crushing process, reduces the flying dust amount that bark produces in the crushing process.
Obviously, the invention is not restricted to above preferred implementation, also can be in spirit of the present invention, change other process conditions, has same effect, be not only applicable to the pulverizing of barks such as enterprises in pulp and paper industry masson pine commonly used, eucalyptus, willow as technical solution of the present invention, be applicable to the pulverizing of biomass castoffs such as fir hull, maple skin, oak bark, corrosion material, bamboo, bagasse, cotton stalk, waste of flax yet.Those of ordinary skill in the art can from content disclosed by the invention directly or all methods of associating also belong to protection scope of the present invention.
Claims (8)
1. the breaking method of a bark recycling may further comprise the steps:
Step 1, bark collected be sent to infeed belt conveyor;
Step 2, infeed belt conveyor are transported to the bark disintegrating apparatus with bark;
Step 3, bark are sent to the bark storehouse through outfeed belt conveyor after disintegrating apparatus is pulverized,
It is characterized in that: described bark disintegrating apparatus is a drum chipper.
2. the breaking method of bark recycling according to claim 1 is characterized in that: described drum chipper uneasiness when pulverizing bark takes on the material screen plate.
3. the breaking method of bark recycling according to claim 1 and 2 is characterized in that: the conveying bark speed of described infeed belt conveyor is 1:34～1:38 with the ratio of the fly cutter rotational line speed that drum chipper is installed.
4. the breaking method of bark recycling according to claim 1 and 2 is characterized in that: the tool point angle of the fly cutter that described drum chipper is installed is 30～34 degree.
5. the breaking method of bark recycling according to claim 1 and 2 is characterized in that: the bark water content is 45%～60% in the crushing process.
6. the breaking method of bark recycling according to claim 1 and 2 is characterized in that: locking magnet is installed above described infeed belt conveyor, is removed the metallics of carrying secretly in debarking.
7. the breaking method of bark recycling according to claim 1 is characterized in that: spray water system is installed above described infeed belt conveyor, is regulated the bark water content of drum chipper.
8. the breaking method of bark recycling according to claim 3 is characterized in that: the fly cutter linear velocity that described drum chipper is installed is 1250～1400 meters/minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105315086A CN102009422B (en) | 2010-11-04 | 2010-11-04 | Crushing method for recycling bark resources |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105315086A CN102009422B (en) | 2010-11-04 | 2010-11-04 | Crushing method for recycling bark resources |
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| Publication Number | Publication Date |
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| CN102009422A true CN102009422A (en) | 2011-04-13 |
| CN102009422B CN102009422B (en) | 2012-06-27 |
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| CN2010105315086A Active CN102009422B (en) | 2010-11-04 | 2010-11-04 | Crushing method for recycling bark resources |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102729311A (en) * | 2012-07-13 | 2012-10-17 | 鸿伟人造板（长泰）有限公司 | Production method of eucalyptus bark shaving boards |
| CN105217263A (en) * | 2015-09-21 | 2016-01-06 | 格薪源生物质燃料有限公司 | High-quality biological matter fuel processing system |
| CN113246251A (en) * | 2021-05-19 | 2021-08-13 | 广西力源宝科技有限公司 | Eucalyptus bark resource processing system and processing method |
| CN113500673A (en) * | 2021-06-02 | 2021-10-15 | 顾银龙 | Novel wood pulverizer |
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| JP2002079506A (en) * | 2000-09-06 | 2002-03-19 | Shinakimoku Kogyo Kk | Fire retardant bark board |
| JP2005238806A (en) * | 2004-02-27 | 2005-09-08 | Ehime Prefecture | Bark board |
| CN101439533A (en) * | 2007-11-23 | 2009-05-27 | 黑龙江省林产工业研究所 | Method for preparing composite floor core material using bark of dahurian larch as raw material |
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2010
- 2010-11-04 CN CN2010105315086A patent/CN102009422B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002079506A (en) * | 2000-09-06 | 2002-03-19 | Shinakimoku Kogyo Kk | Fire retardant bark board |
| JP2005238806A (en) * | 2004-02-27 | 2005-09-08 | Ehime Prefecture | Bark board |
| CN101439533A (en) * | 2007-11-23 | 2009-05-27 | 黑龙江省林产工业研究所 | Method for preparing composite floor core material using bark of dahurian larch as raw material |
Non-Patent Citations (2)
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| 《林业机械与木工设备》 20080229 毕克新等 落叶松树皮与聚苯乙烯复合保温材料研究 第36卷, 第2期 2 * |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102729311A (en) * | 2012-07-13 | 2012-10-17 | 鸿伟人造板（长泰）有限公司 | Production method of eucalyptus bark shaving boards |
| CN102729311B (en) * | 2012-07-13 | 2015-01-07 | 鸿伟人造板（长泰）有限公司 | Production method of eucalyptus bark shaving boards |
| CN105217263A (en) * | 2015-09-21 | 2016-01-06 | 格薪源生物质燃料有限公司 | High-quality biological matter fuel processing system |
| CN113246251A (en) * | 2021-05-19 | 2021-08-13 | 广西力源宝科技有限公司 | Eucalyptus bark resource processing system and processing method |
| CN113500673A (en) * | 2021-06-02 | 2021-10-15 | 顾银龙 | Novel wood pulverizer |
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| CN102009422B (en) | 2012-06-27 |
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Address after: 418005 Huaihua Industrial Park, Hunan, Huaihua Patentee after: Hunan Jun Thai New Materials Technology Co. Ltd. Address before: 418005 Huaihua Industrial Park, Hunan, Huaihua Patentee before: Hu'nan Juntai Pulp Paper Co., Ltd. |