CN101230545A - Method for preparing slurry by blast process - Google Patents
Method for preparing slurry by blast process Download PDFInfo
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- CN101230545A CN101230545A CNA2008100706601A CN200810070660A CN101230545A CN 101230545 A CN101230545 A CN 101230545A CN A2008100706601 A CNA2008100706601 A CN A2008100706601A CN 200810070660 A CN200810070660 A CN 200810070660A CN 101230545 A CN101230545 A CN 101230545A
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- microwave
- elongated tubular
- hollow elongated
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- pressure conveyer
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Abstract
The invention discloses a method for pulping by using a blasting method. The invention is characterized in that the method for pulping has the steps as follows: a hollow long tube is arranged in a microwave cavity, wherein, the left end of the hollow long tube is provided with an opening, and the right end is linked with a pressure conveyer through a flange; raw material containing fiber such as wood, bamboo, plant straw, etc. is fed into the inner part of the hollow long tube and is put in a microwave field through the pressure conveyer; under the heating by the energy of the microwave field, the inner moisture of the raw material is vaporized rapidly to achieve the purpose of blasting and cracking the fiber; the hollow long tube is made of nonpolarity material which dose not absorb microwave energy.
Description
Technical field
The present invention relates to a kind of method with Demolition Pulping.
Background technology
Explosion pulping is to adopt the High Temperature High Pressure saturated vapor at present, earlier to material cooking, makes steam infiltrate raw material inside in sealed environment, open valve later on again, raw material is released in the atmosphere, the adiabatic expansion of moment forms " blast " effect, impel fiber cracking in the raw material, the pulp thing.(the present invention relates to for convenience, fibrous raw materials such as timber that " raw material " all refer to can be used for making the fiber pulp agent, bamboo, straw.)
United States Patent (USP) (US Pat416368) discloses a kind of intermittently explosion pulping equipment, and that is the long tube that an end is equipped with valve, and wooden sheet is packed in the long tube, feed Steam Heating after, open valve and realize explosion.
Canada STAKE technology company proposes a kind of continuity blasting gear, its essence is beat switch by 2 input and output material ball valves, realize charging and explosion discharging respectively, also be not truly continuously (see＜external papermaking 1990.09 (5), Wu Kaoren: " Canadian explosion pulping method development ").
China Patent No. 99229183.6, name are called " explosion pulping complete set of equipments ", and China Patent No. 01252451.4, name are called " explosion pulping technique device automatically ", have also all proposed the equipment of similar dependence high-temperature high-pressure steam explosion pulping.
Though these device structures have difference at present, but technological essence all utilize hot water and steam from the raw material outside to the inner heat supply of raw material, because these raw materials all are the non-conductors of heat, accelerate heat transfer rate so can only adopt the High Temperature High Pressure means, chainly cause to go to make the container and the valve that can bear High Temperature High Pressure, thereby both increased energy consumption, increased device fabrication cost and maintenance difficulties again.
For this reason, be necessary to propose reform, people wish to have a kind of new pulping process.
Summary of the invention
The purpose of this invention is to provide a kind of new pulping process: described pulping process is the hollow elongated tubular of placing a left end opening, right-hand member flange coupling pressure conveyer in microwave cavity, with fibrous raw materials such as timber, bamboo, straws, through the pressure conveyer, send into hollow elongated tubular inside, be placed in the microwave field, under the heating of microwave field energy, the raw material internal moisture is vaporized rapidly, reach explosion cracking fiber purpose.Hollow elongated tubular is to make of the non-polar material that does not absorb microwave energy.
The present invention compared with the prior art, innovative point of the present invention is: adopt microwave field directly to go deep into raw material inside to the heating of raw material internal moisture, impel raw material internal moisture formation " blast " effect that gasifies rapidly, finish explosion pulping.
Description of drawings
Fig. 1 is the schematic diagram of a specific embodiment of the present invention.
The specific embodiment
The present invention is further described below in conjunction with the specific embodiment of accompanying drawing.(but not being limitation of the present invention).
Pulping process of the present invention is the hollow elongated tubular 1 of placing a left end opening, right-hand member flange coupling pressure conveyer 5 in microwave cavity 2, with fibrous raw materials such as timber, bamboo, straws, through pressure conveyer 5, send into hollow elongated tubular 1 inside, be placed in the microwave field, under the heating of microwave field energy, the raw material internal moisture is vaporized rapidly, reach explosion cracking fiber purpose.Described hollow elongated tubular 1 is to make of the non-polar material that does not absorb microwave energy.
Fig. 1 is concrete schematic diagram of implementing of the present invention, a hollow elongated tubular 1 is arranged among the figure, hollow elongated tubular 1 is installed in the microwave cavity 2, microwave cavity 2 physical dimensions satisfy the specification requirement of microwave cavity, the size that can adopt international standards to recommend, as: adopt the 915MHZ microwave source, when adopting garden waveguide type microwave applicator, the diameter of garden resonator is between 107～126 millimeters.
Hollow elongated tubular 1 usefulness does not absorb that the non-polar material of microwave energy makes, it can be a polytetrafluoroethylmaterial material, or the alchlor ceramic material, or silica glass material is made.Hollow elongated tubular 1 diameter is that 20～60 millimeters, length are 2000～6000 millimeters.
Hollow elongated tubular 1 left end is open to atmosphere opening 11, and the left end flange 51 of a right-hand member flange 12 and a pressure conveyer 5 connects, and the right-hand member of pressure conveyer 5 has hopper 52.
Like this, with the raw material hopper 52 of packing into, start pressure conveyer 5, raw material enters hollow elongated tubular 1 inside from hopper 52 through pressure conveyer 5, opens microwave source 4 power supplys, and the microwave field energy is to the moisture content heating of raw material inside in the hollow elongated tubular 1, and moisture content is vaporized rapidly, form " blast ", thereby also driven raw material, finish explosion pulping from opening 11 ejections.
More than be a kind of embodiment of the present invention, all similar changes of doing according to above-mentioned design ought to belong to scope of the present invention.
Claims (6)
1. method with Demolition Pulping, it is characterized in that, the method of described slurrying is the hollow elongated tubular (1) of placing a left end opening, right-hand member flange coupling pressure conveyer (5) in microwave cavity (2), with fibrous raw materials such as timber, bamboo, straws,, send into hollow elongated tubular (1) inside through pressure conveyer (5), be placed in the microwave field, under the heating of microwave field energy, the raw material internal moisture is vaporized rapidly, reach explosion cracking fiber purpose; Hollow elongated tubular (1) is to make of the non-polar material that does not absorb microwave energy.
2. method according to claim 1, it is characterized in that, described hollow elongated tubular (1) is installed in the microwave cavity (2), microwave cavity (2) physical dimension satisfies the specification requirement of microwave cavity, microwave cavity (2) connects by waveguide (3) and microwave source (4), and the power of microwave source (4) satisfies heating raw makes vaporize the rapidly requirement of realization " blast " of raw material internal moisture.
3. method according to claim 2, it is characterized in that, described hollow elongated tubular (1) is that polytetrafluoroethylmaterial material or alchlor ceramic material or silica glass material are made, and hollow elongated tubular (1) diameter is that 20～60 millimeters, length are 2000～6000 millimeters.
4. method according to claim 3, it is characterized in that, described hollow elongated tubular (1) left end is open to atmosphere opening (11), and right-hand member flange (12) connects with the left end flange (51) of a pressure conveyer (5), and the right-hand member of pressure conveyer (5) has hopper (52).
5. method according to claim 4, it is characterized in that, the described raw material hopper (52) of packing into starts pressure conveyer (5), and raw material enters hollow elongated tubular (1) inside from hopper (52) through pressure conveyer (5), open microwave source (4) power supply, the microwave field energy heats the moisture content of raw material inside in the hollow elongated tubular (1), and moisture content is vaporized rapidly, forms " blast ", thereby also driven raw material from opening (11) ejection, finished explosion pulping.
6. method according to claim 5 is characterized in that, described microwave cavity (2) physical dimension is: use the 915MHZ microwave source, when adopting garden waveguide type microwave applicator, the diameter of garden resonator is between the 107-126 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100706601A CN101230545B (en) | 2008-02-26 | 2008-02-26 | Method for preparing slurry by blast process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100706601A CN101230545B (en) | 2008-02-26 | 2008-02-26 | Method for preparing slurry by blast process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101230545A true CN101230545A (en) | 2008-07-30 |
| CN101230545B CN101230545B (en) | 2012-02-15 |
Family
ID=39897330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100706601A Expired - Fee Related CN101230545B (en) | 2008-02-26 | 2008-02-26 | Method for preparing slurry by blast process |
Country Status (1)
| Country | Link |
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| CN (1) | CN101230545B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498375A (en) * | 2013-09-24 | 2014-01-08 | 昆明理工大学 | Method for pulping by broussonetia papyrifera white-bark |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1098389C (en) * | 1999-08-13 | 2003-01-08 | 中国科学院化工冶金研究所 | Pollution-less low-pressure steam decrepitation process of making straw pulp |
| CN1458334A (en) * | 2003-05-23 | 2003-11-26 | 江立 | Presteaming process for plant fiber material in steam explosion pulping |
| CN201428085Y (en) * | 2009-07-13 | 2010-03-24 | 天津大学 | Device for performing crystallization removing to plant straw through adopting circulating explosion method of gradient fluidized ammonia |
-
2008
- 2008-02-26 CN CN2008100706601A patent/CN101230545B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498375A (en) * | 2013-09-24 | 2014-01-08 | 昆明理工大学 | Method for pulping by broussonetia papyrifera white-bark |
| CN103498375B (en) * | 2013-09-24 | 2015-06-03 | 昆明理工大学 | Method for pulping by broussonetia papyrifera white-bark |
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| Publication number | Publication date |
|---|---|
| CN101230545B (en) | 2012-02-15 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120215 Termination date: 20140226 |