CN212560907U - Extrusion devillicate and component separation mechanism and straw fiber production system - Google Patents
Extrusion devillicate and component separation mechanism and straw fiber production system Download PDFInfo
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- CN212560907U CN212560907U CN202020799942.1U CN202020799942U CN212560907U CN 212560907 U CN212560907 U CN 212560907U CN 202020799942 U CN202020799942 U CN 202020799942U CN 212560907 U CN212560907 U CN 212560907U
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- 239000010902 straw Substances 0.000 title claims abstract description 44
- 238000000926 separation method Methods 0.000 title claims abstract description 43
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- 239000000463 material Substances 0.000 claims abstract description 32
- 238000000227 grinding Methods 0.000 claims abstract description 31
- 238000007599 discharging Methods 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
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- 239000000126 substance Substances 0.000 description 4
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- 150000002972 pentoses Chemical class 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
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- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
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Abstract
The utility model discloses an extrusion divides silk and component separating mechanism and straw cellosilk production system, include: the shell is internally provided with a cavity and comprises a feeding end and a discharging end; the separation assembly is arranged in the containing cavity and comprises a pair of driving screw rods and driven screw rods which are meshed with each other, the separation assembly comprises reverse thread dividing screw thread sections and grinding screw thread sections, the reverse thread dividing screw thread sections are arranged into at least one group, forward conveying screw thread sections are arranged on two sides of each group of reverse thread dividing screw thread sections, the reverse thread dividing screw thread sections are arranged close to the feeding end, the grinding screw thread sections are arranged close to the discharging end, and the spiral line directions of the reverse thread dividing screw thread sections are opposite to those of the forward conveying screw thread sections and the grinding screw thread sections; and the driving mechanism drives the driving screw rod to rotate. Because the reverse thread separating thread sections can be arranged into a plurality of groups, the materials pass through the reverse thread separating thread sections for a plurality of times, so that a plurality of component separation is realized, and a good component separation effect is ensured.
Description
Technical Field
The utility model relates to a living beings chemical industry field, in particular to extrusion divides silk and component separating mechanism and straw cellosilk production system.
Background
China has rich straw biomass resources, but the utilization rate of the straw biomass resources is still not high, the concept that the straw is used as a treasure and is discarded as a harm is not deep, the resource and commercialization degree is low, and the industrial development of comprehensive utilization is slow. At present, the straw burning phenomenon is still very serious, and about more than 3 hundred million tons of crop straws are burnt or discarded every year in China. Therefore, the aim that the comprehensive utilization rate of the straws exceeds 80% in 2020 in China is achieved, and the task is still quite difficult.
Lignin, the second largest biomass resource in the world to cellulose only, is also the only non-fossil resource in nature that can provide renewable aryl compounds. Meanwhile, lignin molecules have a plurality of functional groups such as methoxy, phenolic (alcoholic) hydroxyl, carbonyl, carboxyl and the like and active sites such as unsaturated double bonds. Therefore, the lignin has great application value as a natural high molecular material. However, at present, industrial lignin mostly comes from the papermaking and pulping industry, and the problems of low purity, serious chemical structure damage, reduction of active groups, high purification cost and the like generally exist, so that the high-valued application of the lignin is severely restricted. Therefore, the development of a production mode integrating the efficient separation of biomass components (lignin and hemicellulose) and the efficient preparation of plant fibers has important significance.
The method mainly adopts a chemical cooking method at present, and then pulp grinding is carried out through a pulp grinder to prepare the straw fiber. Therefore, the development of the device and the production system thereof which are suitable for continuous, energy-saving and efficient industrialized straw component separation and straw fiber preparation are of great significance.
The double-screw technology is currently applied to the fields of chemical mechanical pulping and mechanical pulping, but most of the double-screw technology aims at woody plants, alkaline and neutral systems are mostly adopted for pulping, and the screw pulping machine is mostly made of materials which are not corrosion-resistant. Straw biomass belongs to gramineous plants, and many characteristics of the straw biomass are different from those of gramineous plants, so that the structure of the straw biomass is required to be improved by adopting a double screw to treat the straw biomass, and meanwhile, as a component separation device, in order to improve the adaptability of the straw biomass to different processes, the screw is also required to be made of corrosion-resistant materials for processing.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve one of the problems in the background art at least, provide an extrusion divides silk and component separating mechanism and straw fiber silk production system, correct grinding effect preferred.
The utility model adopts the technical proposal that:
extrusion divides silk and component separation mechanism includes:
the device comprises a shell, a feeding device and a discharging device, wherein a containing cavity is formed inside the shell, one end of the shell is provided with a feeding end, and the other end of the shell is provided with a discharging end;
the separation assembly is arranged in the containing cavity and comprises a pair of driving screw rods and driven screw rods which are meshed with each other, the separation assembly comprises a reverse thread dividing thread section and a grinding thread section, the reverse thread dividing thread section is arranged into at least one group, forward conveying thread sections are arranged on two sides of each group of reverse thread dividing thread sections, the reverse thread dividing thread section is arranged close to the feeding end, the grinding thread section is arranged close to the discharging end, and the spiral line directions of the reverse thread dividing thread sections are opposite to those of the forward conveying thread section and the grinding thread section; and
and the driving mechanism drives the driving screw rod to rotate.
Has the advantages that: the driving screw rod and the driven screw rod are meshed to rotate, materials are conveyed to the reverse thread separation screw thread section by the forward conveying screw thread section, and component separation and thread separation are achieved when the materials pass through the reverse thread separation screw thread section. Because the reverse thread-separating thread sections can be arranged into a plurality of groups, the materials pass through the reverse thread-separating thread sections for a plurality of times, and the separation of a plurality of sections of components is realized. And then the materials after multiple separation are conveyed to the grinding thread section by the forward conveying thread section again, and are further finely ground, so that good component separation and thread separation effects are ensured.
In some embodiments, the thread pitches of the threads arranged in the reverse thread-separating thread segments are different, and the thread pitches decrease sequentially from the feeding end to the discharging end.
In some embodiments, the threads in the reverse thread-dividing thread segments are arranged in a spaced-apart manner along the extension direction of the spiral line.
In some of these embodiments, the cross-section of the threads of the grinding thread segment is an isosceles trapezoid.
In some of these embodiments, the two legs of adjacent isosceles trapezoids form an included angle of 5 ° to 60 °.
In some of these embodiments, the housing is provided with a steam inlet and a steam outlet, which are arranged in sequence along a direction in which the discharge end points to the feed end.
In some embodiments, the extruding and separating mechanism further comprises a material outlet box, the material outlet box is communicated with the cavity, and the material outlet box is arranged at the rear end of the grinding thread section.
In some embodiments, a conveying screw rod is arranged in the discharging box, and the conveying screw rod and the driving screw rod rotate coaxially.
In some embodiments, the material of the extruded split filament and the component separation mechanism is corrosion-resistant alloy.
The straw fiber yarn production system comprises a crushing and dust removing device, a water washing and sand removing device, a first dewatering device, an extrusion yarn separating and component separating mechanism and a second dewatering device which are sequentially connected.
Has the advantages that: when the straw fiber production system is used for producing straw fibers, straws can be sequentially subjected to crushing and dust removal, water washing and sand removal, primary dehydration, component separation and secondary dehydration, and then straw fibers with good separation effect are obtained.
Drawings
The invention will be further described with reference to the following figures and examples:
FIG. 1 is a schematic view of the overall structure of an extrusion filament separating and component separating mechanism according to an embodiment of the present invention;
FIG. 2 is a schematic view showing the engagement state of the driving screw rod and the driven screw rod;
FIG. 3 is a front view of FIG. 2;
FIG. 4 is a block diagram of a production system of straw fiber according to an embodiment of the present invention.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1 to 4, the embodiment of the present invention provides a straw fiber production system, which mainly comprises a crushing and dust-removing device 100, a washing and sand-removing device 200, a first dewatering device 300, a squeezing and fiber-separating and component-separating mechanism 400, and a second dewatering device 500, which are connected in sequence. When the straw fiber production system is used for producing straw fibers, straws can be sequentially subjected to crushing and dust removal, water washing and sand removal, primary dehydration, component separation, dissociation and fiber separation and secondary dehydration, and then straw fibers with good separation effect are obtained.
Referring again to fig. 1, the extrusion filament separating and component separating mechanism 400 is mainly composed of a housing 12, a separating assembly 5 and a driving mechanism. Wherein, the inside appearance chamber that forms of casing 12, casing 12 one end is equipped with the feed end for input material, and the other end is equipped with the discharge end for export the material after the processing. The separating assembly 5 is arranged in the containing cavity, the separating assembly 5 comprises a pair of driving screw rods and driven screw rods which are meshed with each other, and the driving screw rods and the driven screw rods are rotatably arranged at two ends of the shell 12 respectively. The driving mechanism drives the driving screw rod to rotate.
Be provided with reverse branch silk screw thread section 52 and grinding screw thread section 53 on the separable set 5, wherein reverse branch silk screw thread section 52 sets up to 3 groups, the both sides of each reverse branch silk screw thread section 52 all are provided with forward conveying screw thread section 51, reverse branch silk screw thread section 52 is close to the feed end setting, grinding screw thread section 53 is close to the discharge end setting, the helix direction of reverse branch silk screw thread section 52 all is opposite with the helix direction of forward conveying screw thread section 51 and grinding screw thread section 53.
Wherein the mutually engaged forward conveying screw thread segments 51 form a conveying extrusion region, the mutually engaged reverse devillicating screw thread segments 52 form a dipping treatment region and a pressure kneading devillicating region, and the mutually engaged grinding screw thread segments 53 form a pressure refining region. The straw fiber enters the impregnation treatment area and the pressurizing and kneading devillicate area after passing through the conveying and extruding area, and then the separation of straw fiber components is realized. In the embodiment, the straw fiber passes through the dipping treatment area and the pressurizing and kneading devillicating area for 3 times, so that the components can be fully separated and dissociated to be devillicated, and finally passes through the pressure fine grinding area to finish the fine grinding with higher precision.
The driving screw rod and the driven screw rod are meshed to rotate, materials enter through the feeding end and then fall into a first section conveying extrusion area on the separating component 5, the materials are conveyed to a reverse thread separating thread section 52 through a forward conveying thread section 51, and component separation and filament separation are achieved when the materials pass through the reverse thread separating thread section 52. Because the reverse yarn-separating thread section 52 can be arranged into a plurality of groups, the materials pass through the reverse yarn-separating thread section 52 for a plurality of times, and the separation of the components and the separation of the yarns for a plurality of times are realized. And then the materials after multiple separation are conveyed to the grinding thread section 53 by the forward conveying thread section 51 again, and are further finely ground, so that good component separation and filament separation effects are ensured.
It should be understood that the sets of segments 52 are not limited to 3, but may be 2, 4 or more.
Meanwhile, the reverse thread separating thread section 52 is arranged close to the feeding end, and the grinding thread section 53 is arranged close to the discharging end, it can be understood that the reverse thread separating thread section 52 and the grinding thread section 53 are both arranged between the feeding end and the discharging end, and the term "close" here describes a relative positional relationship, that is, the reverse thread separating thread section 52 is arranged close to the feeding end relative to the grinding thread section 53, and the grinding thread section 53 is arranged close to the discharging end relative to the reverse thread separating thread section 52.
Further, the driving mechanism comprises a main motor 1, a first coupler 2, a gear transmission case 3 and a second coupler 4, wherein the main motor 1, the first coupler 2, the gear transmission case 3, the second coupler 4 and the driving screw rod are sequentially connected in series to achieve transmission of rotation power.
In some embodiments, the threads of each set of opposing filament separation thread segments 52 have different pitches, and the pitches decrease from the feed end to the discharge end. The reverse thread separating thread section 52 arranged on one side far away from the feeding end has smaller thread pitch, and the material to be processed is subjected to primary component separation processing, so that the smaller the thread pitch is. The component separation of the straw fiber filaments can be conveniently and fully realized by reducing the pitch step by step.
Specifically, the thread pitch of the reverse thread dividing thread section 52 close to the feeding end is set to be 15-20 mm, and the thread pitches of the two subsequent reverse thread dividing thread sections 52 are sequentially decreased by 3-5 mm.
In some of these embodiments, the threads in the reverse thread splitting thread segment 52 are arranged in a spaced-apart manner along the extension of the helical line. Referring to fig. 2 and 3 again, the threads of the partition form grooves on the periphery, which facilitates the separation and forward conveying of the straw fiber filaments.
In some of these embodiments, the cross-section of the threads of the grinding thread segment 53 is isosceles trapezoid. Isosceles trapezoids on initiative hob and the driven hob intermeshing, the straw cellosilk accomplishes at isosceles trapezoid's top and two waists and grinds, and the effect is preferred.
In some embodiments, the two waists of adjacent isosceles trapezoids form an included angle of 5 ° to 60 ° therebetween, so as to achieve better polishing effect.
Referring again to fig. 1, the housing 12 is provided with a feeding device 6, a medicine inlet 8, a liquid outlet 9, a steam inlet 10 and a steam outlet 11. The feeding device 6 is arranged at the feeding end, the medicine inlet 8 and the steam outlet 11 are arranged above the shell 12, and the liquid outlet 9 and the steam inlet 10 are arranged below the shell 12. The material can be input into the containing cavity through the feeding device 6, the liquid medicine is injected into the containing cavity through the medicine inlet 8, and the liquid in the containing cavity is discharged through the liquid outlet 9. Discharging box 7 is installed to the discharge end, and discharging box 7 communicates with the appearance chamber, and discharging box 7 sets up the rear end at grinding screw thread section 53. The ground straw fiber filaments can be output through the material outlet box 7 so as to enter the next process flow.
In some embodiments, a conveying screw rod is arranged in the discharging box 7, and the conveying screw rod and the driving screw rod rotate coaxially, so that a power source is saved, and the structure is compact.
In some of the embodiments, the steam inlet 10 and the steam outlet 11 are arranged in sequence along the direction of the discharging end pointing to the feeding end, so that the steam can be against the conveying direction of the material, thereby achieving the effect of countercurrent extraction and improving the effect of the steam on the material.
In some embodiments, the extrusion parting line and the component separating mechanism 400 are made of corrosion-resistant alloy, which prolongs the service life.
The straw fiber production system is adopted to treat the straw, so that the environmental problems caused by low straw utilization rate and straw burning can be solved. Meanwhile, the separation of high-quality lignin and the separation of pentose and oligomeric pentose can be realized, and high-quality straw cellosilk can be produced.
The separation component 5 in the extrusion filament separating and component separating mechanism 400 can be designed according to actual requirements, the set number of the reverse filament separating thread sections 52 or the size of the internal thread pitch and other parameters are adjusted, and the parameters of the middle waist trapezoid in the grinding thread section 53 and the like are adjusted, so that the control of the length-diameter ratio of the straw fiber filaments can be effectively realized, and the material fine grinding effect is improved. The separating component 5 can be adjusted according to the process requirements, so that the diversity and the adaptability of the reaction system are improved.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those skilled in the art.
Claims (10)
1. Extrusion divides silk and component separating mechanism, its characterized in that includes:
the device comprises a shell, a first material inlet, a second material inlet, a first material outlet and a second material outlet, wherein a cavity is formed inside the shell;
the separation assembly is arranged in the containing cavity and comprises a pair of driving screw rods and driven screw rods which are meshed with each other, the separation assembly comprises a reverse thread dividing thread section and a grinding thread section, the reverse thread dividing thread section is arranged into at least one group, forward conveying thread sections are arranged on two sides of each group of reverse thread dividing thread sections, the reverse thread dividing thread section is arranged close to the feeding end, the grinding thread section is arranged close to the discharging end, and the spiral line directions of the reverse thread dividing thread sections are opposite to those of the forward conveying thread section and the grinding thread section; and
and the driving mechanism drives the driving screw rod to rotate.
2. The extrusion filament separating and component separating mechanism of claim 1, wherein: the thread pitches of the threads arranged in the reverse thread-dividing thread sections are different, and the thread pitches are sequentially reduced from the feeding end to the discharging end.
3. The extrusion filament separating and component separating mechanism according to claim 1 or 2, wherein: the threads in the reverse thread dividing thread section are arranged in a separated shape along the extending direction of the spiral line.
4. The extrusion filament separating and component separating mechanism of claim 1, wherein: the cross section of the thread of the grinding thread section is isosceles trapezoid.
5. The extrusion filament separating and component separating mechanism of claim 4, wherein: an included angle of 5-60 degrees is formed between two waists of the adjacent isosceles trapezoids.
6. The extrusion filament separating and component separating mechanism of claim 1, wherein: the steam inlet and the steam outlet are arranged in sequence along the direction of the discharge end pointing to the feed end.
7. The extrusion filament separating and component separating mechanism of claim 1, wherein: the extrusion wire separating and component separating mechanism further comprises a material outlet box, the material outlet box is communicated with the containing cavity, and the material outlet box is arranged at the rear end of the grinding thread section.
8. The extrusion filament separating and component separating mechanism of claim 7, wherein: and a conveying screw rod is arranged in the discharging box and rotates coaxially with the driving screw rod.
9. The extrusion filament separating and component separating mechanism of claim 1, wherein: the extrusion wire separating and component separating mechanism is made of corrosion-resistant alloy.
10. Straw fiber silk production system, its characterized in that: comprises a crushing and dust removing device, a water washing and sand removing device, a first dewatering device, the extruding and separating mechanism and the component separating mechanism as claimed in any one of claims 1 to 8, and a second dewatering device which are connected in sequence.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020799942.1U CN212560907U (en) | 2020-05-14 | 2020-05-14 | Extrusion devillicate and component separation mechanism and straw fiber production system |
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| CN202020799942.1U CN212560907U (en) | 2020-05-14 | 2020-05-14 | Extrusion devillicate and component separation mechanism and straw fiber production system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114456278A (en) * | 2022-03-14 | 2022-05-10 | 泸州品创科技有限公司 | Method for continuously extracting cordyceps militaris intracellular polysaccharide |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114456278A (en) * | 2022-03-14 | 2022-05-10 | 泸州品创科技有限公司 | Method for continuously extracting cordyceps militaris intracellular polysaccharide |
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