CN101230545B - Method for preparing slurry by blast process - Google Patents
Method for preparing slurry by blast process Download PDFInfo
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- CN101230545B CN101230545B CN2008100706601A CN200810070660A CN101230545B CN 101230545 B CN101230545 B CN 101230545B CN 2008100706601 A CN2008100706601 A CN 2008100706601A CN 200810070660 A CN200810070660 A CN 200810070660A CN 101230545 B CN101230545 B CN 101230545B
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- microwave
- elongated tubular
- raw material
- hollow elongated
- 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 HTHP saturated vapor at present, in sealed environment, earlier to material cooking, makes steam infiltrate raw material inside; 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) just 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 property switch through 2 input and output material ball valves; Realize charging and the discharging of explosion property respectively; Be not truly continuously (seeing < external papermaking>1990.09 (5), Wu Kaoren: " Canadian explosion pulping method development ") yet.
Chinese patent numbers 99229183.6, name are called " explosion pulping complete set of equipments ", and Chinese patent number 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,, chainly cause to go to make the container and the valve that can bear HTHP so can only adopt the HTHP means to accelerate heat transfer rate; Thereby both increased energy consumption, increased device fabrication cost and maintenance difficulties again.
For this reason, be necessary to propose reform, people hope 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: said pulping process is the hollow elongated tubular of in microwave cavity, placing a left end opening, right-hand member flange coupling pressure conveyer; 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 with the non-polar material that does not absorb microwave energy.
The present invention and prior art relatively, 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 formations " blast " effect that gasifies rapidly, the completion explosion pulping.
Description of drawings
Fig. 1 is the sketch map of a specific embodiment of the present invention.
The specific embodiment
Specific embodiment below in conjunction with accompanying drawing further specifies the present invention.(but not being limitation of the present invention).
Pulping process according to the invention is the hollow elongated tubular 1 of in microwave cavity 2, placing a left end opening, right-hand member flange coupling pressure conveyer 5; 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.Described hollow elongated tubular 1 is to make with the non-polar material that does not absorb microwave energy.
Fig. 1 is practical implementation sketch map of the present invention; A hollow elongated tubular 1 is arranged among the figure, and hollow elongated tubular 1 is installed in the microwave cavity 2, and 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.
Microwave cavity 2 connects through 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.An equipment that adopts the 30kw microwave power supply per hour can be processed through preparatory well-done wood chip 80～160kg.
Hollow elongated tubular 1 usefulness does not absorb that the non-polar material of microwave energy processes, it can be a polytetrafluoroethylmaterial material, or the alchlor ceramic material, or silica glass material is processed.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 gets into hollow elongated tubular 1 inside from hopper 52 through pressure conveyer 5, opens microwave source 4 power supplys, the moisture content heating that the microwave field energy is inner to raw material in the hollow elongated tubular 1; And moisture content is vaporized rapidly; Form " blast ", thereby also driven raw material, accomplish 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 (5)
1. the method with Demolition Pulping is characterized in that, the method for said slurrying is the hollow elongated tubular (1) of in microwave cavity (2), placing a left end opening, right-hand member flange coupling pressure conveyer (5); With timber, bamboo 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; Hollow elongated tubular (1) is to make with 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, and microwave cavity (2) connects through 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 processed, and hollow elongated tubular (1) diameter is that 20～60 millimeters, length are 2000～6000 millimeters.
4. method according to claim 1 is characterized in that, the described raw material hopper (52) of packing into; Start pressure conveyer (5), raw material gets into hollow elongated tubular (1) inside from hopper (52) through pressure conveyer (5), opens microwave source (4) power supply; The moisture content heating that the microwave field energy is inner to raw material in the hollow elongated tubular (1), and moisture is vaporized rapidly, form " blast "; Thereby also driven raw material from opening (11) ejection, accomplished explosion pulping.
5. method according to claim 1 is characterized in that, described microwave cavity (2) physical dimension is: use the 915MHZ microwave source, when adopting circular waveguide type microwave applicator, the diameter of circle 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 CN101230545A (en) | 2008-07-30 |
| CN101230545B true 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 |
|---|---|
| CN (1) | CN101230545B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498375B (en) * | 2013-09-24 | 2015-06-03 | 昆明理工大学 | Method for pulping by broussonetia papyrifera white-bark |
Citations (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
Patent Citations (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 |
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| Publication number | Publication date |
|---|---|
| CN101230545A (en) | 2008-07-30 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120215 Termination date: 20140226 |