CN102451644B - Fibrous material conveying device - Google Patents
Fibrous material conveying device Download PDFInfo
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- CN102451644B CN102451644B CN2010105139101A CN201010513910A CN102451644B CN 102451644 B CN102451644 B CN 102451644B CN 2010105139101 A CN2010105139101 A CN 2010105139101A CN 201010513910 A CN201010513910 A CN 201010513910A CN 102451644 B CN102451644 B CN 102451644B
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- screw rod
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- ring baffle
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Abstract
The invention discloses a fibrous material conveying device. The device which comprises a hopper, a screw cylinder and a screw assembly is characterized in that: the hopper which is positioned above the screw cylinder is on the feeding end of the screw cylinder; screws are arranged in the screw cylinder; the tube wall of the screw cylinder is of an interlayer structure comprising an inter wall and an outer wall; a liquid coolant is accessed to the interlayer; and at least one annular baffle plate perpendicular to the axis of the screw cylinder is arranged on the screw cylinder within a range from the discharging end to 3-50% of the length of the screw cylinder. The device of the invention has the advantages of guarantee of the continuous and stable convey of the material to a high temperature high pressure reactor, high temperature steam back-spray prevention, fibrous material keratinization reduction, simplicity, and simple operation.
Description
Technical field
The present invention relates to the Progress in Production of Fuel-Ethanol field, particularly a kind of raw material conveying device for the lignocellulosic pretreatment unit.
Background technology
Utilize the plant production alcohol fuels such as agricultural crop straw to become a new energy resource industrial chain.Due to agricultural crop straw and forestry residue components complexity, the water content of Different Crop, hardness, crush resistance etc. have very big-difference, have brought very large difficulty therefore for the cellulosic preprocessing process.In preprocessing process, usually need that solid material is transported to high temperature high pressure device by the normal temperature and pressure environment and process.Traditional method is to carry out the processing of discontinuity by a cavity with pressurization, pressure relief device is set, but this method inefficiency, energy consumption is large, and can not meet the continuity operation of suitability for industrialized production.A kind of solution is raw material to be made slurries utilize pumping, and this has certain requirement (8%-30%) to the charging solid concentration, and high solids content (＞13.4%) material need to be made slurry feed at higher temperature (99 ℃).Another kind method is to make by the method for pushing the material plug that material forms is enough to seal gases at high pressure, then enter the pretreatment reaction device by piston or screw drive, under this condition, the fibrous raw material of approximate dry state can realize that the mechanical tear of lignocellulosic and institutional framework change under high shear force and the multiple action that friction generates heat.
Patent CN1309602A has reported a kind of equipment of supply 90% chemical cellulose material heap.Be provided with screw rod and the reciprocal annular piston coaxial with it in this equipment barrel, be provided with conical plug at barrel discharging opening place stifled.In raw material feeding process, material is torn and promoted to screw rod, and back and forth annular piston compresses above-mentioned material, finally makes material form the compacting plug of cross section near the barrel cross section.The density of this plug is enough to resist the high steam impact of reactor, does not have the phenomenon of regurgitating of material, thereby has guaranteed material feeding high-pressure reactor.Patent CN2208589 has reported a kind of conveying device of string.This system adopts the screw conveying device of three mutually interconnected connections, and wherein first screw rod is conical screw, is used for promoting material, the inwall of feed cylinder be import large, go out young taper.The port of export at first screw feeding cylinder has self-regulation spring backstop, can overcome the problem that under the High Pressure Difference state, continuous feed is easily regurgitated.In above-mentioned these methods, the material plug of closure forms by piston or cone blocking extruding, and this not only makes raw material bear higher temperature and pressure and causes sclerosis or keratinization, and has increased equipment investment cost.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of fiber material transporting device, can guarantee that material is delivered to the high-temperature high-voltage reaction device continuously and stably, prevent that high-temperature steam from regurgitating, reduce the fibre material keratinization, this equipment is simple, and is easy and simple to handle.
Fiber material transporting device of the present invention, comprise hopper, barrel and screw arbor assembly, wherein hopper is positioned at an end of barrel top charging, screw rod is located at barrel inside, and the tube wall of barrel is the sandwich that comprises inner and outer wall, passes into cooling fluid in interlayer, from barrel discharge port end meter, in barrel 3%～50% length range, preferably in barrel 5%～20% length range, at least one is set perpendicular to the axial ring baffle of barrel.
In fiber material transporting device of the present invention, ring baffle arranges 1～10, is preferably 2～5; Ring baffle is welded on the barrel inwall; The ring width of ring baffle be between barrel and screw rod distance 5%～90%, be preferably 30%～70%, can normally load and unload to guarantee screw rod.
In fiber material transporting device of the present invention, screw rod is preferably the combined threaded rod of isometrical screw rod and conical screw, and feed end is isometrical screw rod, and discharge end is conical screw, and the conical screw butt end is connected with isometrical screw rod.The length ratio of isometrical screw rod and conical screw is 4: 1～1: 4, is preferably 2: 1～1: 2.
In fiber material transporting device of the present invention, isometrical screw diameter accounts for 70%～90% of barrel inner diameter, and the conical screw diameter accounts for 60%～90% (the barrel inner diameter that all refers to the screw rod present position) of barrel inner diameter.The isometrical screw channel degree of depth can be that the spiral groove depth of conical screw diminishes gradually along with diminishing of screw diameter uniformly.In the present invention, the diameter of screw rod refers to the diameter at spiral shell rib outer rim place.
In fiber material transporting device of the present invention, the barrel inner diameter changes with the variation of screw diameter, being the little special shape of import large outlet, is straight shape cylinder inwall at isometrical screw portion, and at the barrel inwall of conical screw part, is the taper barrel that adapts to conical screw.
In fiber material transporting device of the present invention, the barrel outer diameter can change with the variation of barrel inner diameter; Preferred barrel outer diameter is constant, and the interlayer between inner and outer wall contains cooling fluid, and the amount of cooling fluid reaches maximum near screw head.
Beneficial effect of the present invention is:
1, in the present invention, the design of ring baffle is effectively pushed material and forms the material plug, prevent the steam backward, the quantity of ring baffle can be according to the actual conditions setting, forming the material plug can stop the impact of the high steam in reactor and not form to regurgitate and get final product, avoid the material plug excessively densified, be conducive to the activation of material.
2, the screw arbor assembly of the present invention's employing combines the advantage of isometrical screw rod and conical screw, has not only guaranteed charging rate but also improved the crushing material degree.
3, the interlayer between barrel inner and outer wall of the present invention contains cooling fluid, and the amount of cooling fluid reaches maximum near screw head, can absorb the huge heat that the screw head extruding raw material produces, and reaches better radiating effect.
4, apparatus of the present invention are simple, need not piston or high-pressure pump and just realized the conveying of material to the high-temperature high-voltage reaction device, reduced equipment investment cost.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the ring baffle structural representation.
In Fig. 1 to Fig. 2: 1, motor, 2, hopper, 3, isometrical screw rod, 4, barrel, 5, conical screw, 6, ring baffle, 7, cooling sandwith layer.
The specific embodiment
Further illustrate the structure of fiber material transporting device of the present invention below in conjunction with accompanying drawing.
As shown in Figure 1, fiber material transporting device of the present invention comprises: be arranged on the hopper 2 of barrel 4 top feed ends, be provided with screw arbor assembly in described barrel 4, i.e. and isometrical screw rod 3 and conical screw 5, isometrical screw rod 3 is connected with motor 1.The tube wall of described barrel 4 is divided into the sandwich 7 of inner and outer wall, passes into cooling fluid in interlayer, and the amount of cooling fluid reaches maximum near conical screw 5 discharge ends, be provided with near barrel 4 discharging opening places a plurality of perpendicular to the axial ring baffle 6 of cylinder.
Fiber material transporting device provided by the invention adopts single screw rod directly to push material to the high temperature high-pressure reactor.At first, stalk without any mechanical treatment directly enters in barrel 4 by hopper 2, under the effect of isometrical screw rod 3, material is torn rapidly and is broken, and then under isometrical screw rod 3 promoted, broken material continued to be torn and pulverize by conical screw 5, near material is advanced into barrel 4 discharging openings, due to the existence of ring baffle 6, material is piled up herein, forms under the double action of conical screw 5 and ring baffle 6 during material fills in and be pushed into reactor.Material plug can effectively stop reactor inner high voltage steam to be regurgitated, and guarantees that fiber material transporting device normally uses, and fiber material transporting device of the present invention can be the continuous conveying fiber material of reactor more than 3MPa to pressure.
Claims (10)
1. fiber material transporting device, comprise hopper, barrel and screw arbor assembly, wherein hopper is positioned at an end of barrel top charging, screw rod is located at barrel inside, the tube wall of barrel is the sandwich that comprises inner and outer wall, passes into cooling fluid in interlayer, it is characterized in that: from barrel discharge port end meter, in barrel 3%～50% length range, at least one is set perpendicular to the axial ring baffle of barrel.
2., according to device claimed in claim 1, it is characterized in that:, from barrel discharge port end meter, in barrel 5%～20% length range, at least one is set perpendicular to the axial ring baffle of barrel.
3., according to device claimed in claim 1, it is characterized in that: ring baffle arranges 1～10, and ring baffle is welded on the barrel inwall.
4., according to the described device of claim 1 or 3, it is characterized in that: the ring width of ring baffle be between barrel and screw rod distance 5%～90%.
5., according to the described device of claim 1 or 3, it is characterized in that: the ring width of ring baffle be between barrel and screw rod distance 30%～70%.
6., according to device claimed in claim 1, it is characterized in that: screw rod is the combined threaded rod of isometrical screw rod and conical screw, and feed end is isometrical screw rod, and discharge end is conical screw, and the conical screw butt end is connected with isometrical screw rod.
7., according to device claimed in claim 6, it is characterized in that: the length ratio of isometrical screw rod and conical screw is 4: 1～1: 4.
8., according to device claimed in claim 6, it is characterized in that: isometrical screw diameter accounts for 70%～90% of barrel inner diameter, and the conical screw diameter accounts for 60%～90% of barrel inner diameter.
9. according to device claimed in claim 6, it is characterized in that: the barrel inner diameter changes with the variation of screw diameter, being the little shape of import large outlet, is straight shape cylinder inwall at isometrical screw portion, and at the barrel inwall of conical screw part, is the taper barrel that adapts to conical screw.
10., according to the described device of claim 1 or 9, it is characterized in that: the barrel outer diameter is constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105139101A CN102451644B (en) | 2010-10-14 | 2010-10-14 | Fibrous material conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105139101A CN102451644B (en) | 2010-10-14 | 2010-10-14 | Fibrous material conveying device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102451644A CN102451644A (en) | 2012-05-16 |
| CN102451644B true CN102451644B (en) | 2013-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105139101A Active CN102451644B (en) | 2010-10-14 | 2010-10-14 | Fibrous material conveying device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1168596C (en) * | 1998-08-03 | 2004-09-29 | 斯泰克技术公司 | Method and apparatus for feeding mass of particulate or fibrous material |
| CN200952094Y (en) * | 2006-09-29 | 2007-09-26 | 陕西科技大学 | Wheat straw screw feeding device |
| CN100363167C (en) * | 2005-02-03 | 2008-01-23 | 覃通衡 | High effieciency mix and extrusion cylinder mechanism of injection moulding machine |
| CN101733854A (en) * | 2008-11-14 | 2010-06-16 | 赵荣滨 | Cooling screw rod conveyor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58208028A (en) * | 1982-05-28 | 1983-12-03 | Mitsubishi Heavy Ind Ltd | Molding machine |
| JPH0467033A (en) * | 1990-07-05 | 1992-03-03 | Konica Corp | Silver halide photographic sensitive material |
| JPH09267033A (en) * | 1996-04-01 | 1997-10-14 | Nippon Kiyaria Kogyo:Kk | Material take-out device of mixer |
-
2010
- 2010-10-14 CN CN2010105139101A patent/CN102451644B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1168596C (en) * | 1998-08-03 | 2004-09-29 | 斯泰克技术公司 | Method and apparatus for feeding mass of particulate or fibrous material |
| CN100363167C (en) * | 2005-02-03 | 2008-01-23 | 覃通衡 | High effieciency mix and extrusion cylinder mechanism of injection moulding machine |
| CN200952094Y (en) * | 2006-09-29 | 2007-09-26 | 陕西科技大学 | Wheat straw screw feeding device |
| CN101733854A (en) * | 2008-11-14 | 2010-06-16 | 赵荣滨 | Cooling screw rod conveyor |
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| CN102451644A (en) | 2012-05-16 |
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