CN112156868B - Raw material extraction device and extraction method for degradable polylactic acid fiber production - Google Patents
Raw material extraction device and extraction method for degradable polylactic acid fiber production Download PDFInfo
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- CN112156868B CN112156868B CN202011093924.2A CN202011093924A CN112156868B CN 112156868 B CN112156868 B CN 112156868B CN 202011093924 A CN202011093924 A CN 202011093924A CN 112156868 B CN112156868 B CN 112156868B
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- pipe
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- vibrating screen
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- 238000000605 extraction Methods 0.000 title claims abstract description 33
- 239000002994 raw material Substances 0.000 title claims abstract description 26
- 229920000747 poly(lactic acid) Polymers 0.000 title claims abstract description 25
- 239000004626 polylactic acid Substances 0.000 title claims abstract description 25
- 238000007380 fibre production Methods 0.000 title claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 51
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 51
- 241001330002 Bambuseae Species 0.000 claims abstract description 51
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 51
- 239000011425 bamboo Substances 0.000 claims abstract description 51
- 239000000835 fiber Substances 0.000 claims abstract description 24
- 229920002472 Starch Polymers 0.000 claims abstract description 14
- 235000019698 starch Nutrition 0.000 claims abstract description 14
- 239000008107 starch Substances 0.000 claims abstract description 14
- 238000000227 grinding Methods 0.000 claims description 73
- 238000002791 soaking Methods 0.000 claims description 71
- 238000012216 screening Methods 0.000 claims description 63
- 239000000463 material Substances 0.000 claims description 58
- 238000005406 washing Methods 0.000 claims description 46
- 239000002893 slag Substances 0.000 claims description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- 238000011010 flushing procedure Methods 0.000 claims description 29
- 238000003756 stirring Methods 0.000 claims description 20
- 241001504664 Crossocheilus latius Species 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 14
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 4
- 239000006228 supernatant Substances 0.000 claims description 4
- 230000001502 supplementing effect Effects 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 2
- 239000012634 fragment Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 238000001802 infusion Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229930091371 Fructose Natural products 0.000 description 2
- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 description 2
- 239000005715 Fructose Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 235000016068 Berberis vulgaris Nutrition 0.000 description 1
- 241000335053 Beta vulgaris Species 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
- B02C18/142—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with two or more inter-engaging rotatable cutter assemblies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C15/14—Edge runners, e.g. Chile mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C15/14—Edge runners, e.g. Chile mills
- B02C2015/143—Edge runners, e.g. Chile mills each runner pivot carrying more than one runner
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Processing Of Solid Wastes (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The invention discloses a raw material extraction device and a raw material extraction method for producing degradable polylactic acid fibers. According to the invention, the processing of the bamboo shoots, the tender bamboo leaves or the tender bamboo branches can be effectively realized, the starch in the bamboo shoots, the utilization of the waste materials of the bamboo is facilitated, the subsequent production of the degradable polylactic acid fiber is facilitated, the cost is saved, and the benefit is improved.
Description
Technical Field
The invention relates to the technical field of polylactic acid fibers, in particular to a raw material extraction device for producing degradable polylactic acid fibers, and simultaneously relates to a raw material extraction method for producing the degradable polylactic acid fibers.
Background
The polylactic acid fiber is mainly prepared from starch-containing agricultural products such as corn, wheat, beet and the like serving as raw materials through fermentation to generate lactic acid, polycondensation and melt spinning. Polylactic acid fiber is a synthetic fiber which can be planted and planted easily, and waste can be naturally degraded in nature. The ecological fiber can be decomposed into carbon dioxide and water in soil or seawater under the action of microorganisms, does not emit toxic gas and cause pollution when being burnt, and is sustainable ecological fiber. The fabric has good hand feeling and drapability, ultraviolet resistance, lower flammability and excellent processability, is suitable for various fashionable wear, casual wear, sports goods, sanitary articles and the like, and has wide application prospect.
The bamboo shoots, the tender bamboo leaves or the tender bamboo branches all contain starch and cannot be generally utilized in the bamboo processing process, and the starch can be used as raw materials for producing polylactic acid fibers, so that the waste of the bamboo is reduced, and when the bamboo shoots, the starch and the fructose in the bamboo shoots are utilized, the starch and the fructose are required to be extracted first and then utilized.
The existing extraction device generally carries out multiple procedures such as crushing, pickling, coarse grinding, fine grinding, screening and the like on bamboo shoots, tender bamboo leaves or tender bamboo branches in the use process, but has poor overall extraction effect in the extraction process, influences the subsequent extraction of starch, and further influences the production of subsequent polylactic acid fibers.
Disclosure of Invention
First, the technical problem to be solved
The invention can solve the problems that the existing extraction device has poor extraction effect, less starch extraction amount and influences the subsequent production of the degradable polylactic acid fiber.
(II) technical scheme
In order to achieve the above object, the present invention adopts the following technical scheme, and the raw material extraction device for producing degradable polylactic acid fibers comprises a crushing assembly, a soaking assembly, a grinding assembly and a screening assembly, wherein the crushing assembly is installed on the upper portion of the soaking assembly, the grinding assembly is connected with the soaking assembly through a belt conveyor, and the screening assembly is installed on the lower portion of the grinding assembly, wherein:
the crushing assembly comprises a bin, two crushing motors and two knife rolls, wherein the two crushing motors are respectively arranged on the side wall of the bin, the two knife rolls are respectively and rotatably arranged between the inner walls of the bin, and the two knife rolls are respectively connected with the output ends of the two crushing motors in a transmission way;
the soaking assembly comprises a supporting frame, a soaking box, a flushing part and a material guiding part, wherein a gate is arranged on the lower side part of the soaking box, the soaking box is arranged on the upper part of the supporting frame, a storage bin is arranged on the upper part of the soaking box, the lower part of the storage bin is communicated with the soaking box, the flushing part is arranged on the side part of the soaking box, the material guiding part is arranged on the side part of the soaking box, and the material guiding part is positioned on the lower part of the gate;
the grinding assembly comprises a grinding cylinder, a grinding motor, a grinding disc and a stone roller, wherein the grinding cylinder is connected with the material guide piece through a conveying belt, the grinding disc is installed at the inner center of the grinding cylinder, the grinding motor is installed at the upper part of the grinding cylinder, a transmission shaft is installed at the output end of the grinding motor, a support is installed at the side part of the transmission shaft, the stone roller is rotatably installed at the side part of the support, and the lower wall of the stone roller is attached to the upper wall of the grinding disc;
the screening assembly comprises a screening tank, a first vibrating screen, a slag washing piece and a second vibrating screen, wherein the grinding cylinder is arranged on the upper portion of the screening tank, the first vibrating screen is arranged in the screening tank, the second vibrating screen is arranged in the screening tank, the feeding end of the slag washing piece is respectively connected with the side portion, adjacent to the first vibrating screen, of the screening tank, and the discharging end of the slag washing piece is connected with the position, adjacent to the screening tank, between the first vibrating screen and the second vibrating screen.
As a preferable technical scheme of the invention, the two knife rolls are oppositely arranged, and the rotation directions of the two knife rolls are opposite.
As a preferable technical scheme of the invention, the upper side part of the soaking box is connected with a liquid supplementing pipe, and the lower side part of the soaking box is connected with a liquid draining pipe.
As a preferable technical scheme of the invention, the flushing member comprises a water guide pipe, a main pipe, a branch pipe and a nozzle, wherein the water guide pipe is connected to the side part of the soaking box, the main pipe is connected to the water outlet end of the water guide pipe, the branch pipe is connected to the side part of the main pipe, the branch pipe stretches into the soaking box, and the nozzle is arranged on the side part of the branch pipe.
As a preferable technical scheme of the invention, the main pipe is arranged in a rectangular ring, and the main pipe is sleeved on the outer wall of the soaking box.
As a preferable technical scheme of the invention, the material guide piece comprises a material guide plate and two limiting plates, wherein the material guide plate is connected to the side part of the soaking box adjacent to the gate, the two limiting plates are symmetrically arranged on the upper wall of the material guide plate, and the material guide plate is inclined by 30-45 degrees below the horizontal plane.
As a preferable technical scheme of the invention, the lower part of the screening tank is in a funnel shape, the side part of the screening tank is provided with the material level gauge, the lower side part of the screening tank is provided with the material guiding pipe, and the middle part of the material guiding pipe is provided with the electric regulating valve.
As a preferable technical scheme of the invention, the slag washing piece comprises a slag washing tank, a first feeding pipe, a second feeding pipe, a stirring motor, stirring blades, a water pump, a return pipe and a sprinkler, wherein the water inlet pipe is arranged at the side part of the slag washing tank, the first feeding pipe and the second feeding pipe are both connected to the side part of the slag washing tank, the feeding end of the first feeding pipe is adjacent to the side part of the first vibrating screen, the feeding end of the second feeding pipe is adjacent to the side part of the second vibrating screen, the stirring motor is arranged at the upper part of the slag washing tank, the stirring blades are arranged at the output end of the stirring motor, the stirring blades extend into the slag washing tank, the liquid inlet end of the water pump is communicated with the slag washing tank, the return pipe is arranged at the liquid outlet end of the water pump, the return pipe is connected with the position between the screening tank and the first vibrating screen and the second vibrating screen, the sprinkler is arranged at the liquid outlet end of the return pipe, and the sprinkler is positioned inside the slag washing tank.
In addition, the invention also provides a raw material extraction device and a raw material extraction method for producing the degradable polylactic acid fiber, and the raw material extraction device and the raw material extraction method specifically comprise the following steps:
s1, crushing raw materials, namely putting bamboo shoots, tender bamboo leaves or tender bamboo branches into a crushing assembly, driving a knife roll to rotate by utilizing the operation of a crushing motor, crushing the bamboo shoots, the tender bamboo leaves or the tender bamboo branches, and enabling the crushed materials to fall into a soaking box under the dead weight;
s2, soaking, namely introducing a sulfurous acid solution with the temperature of 40-60 ℃ into a soaking box, soaking the filtered material for 48-72 hours, then discharging the sulfurous acid solution, flushing the material by using a flushing piece, discharging flushing water after flushing, then opening a gate, and conveying the soaked material to a grinding assembly through a conveying belt;
s3, grinding, wherein the soaked material falls into the upper part of the grinding disc, a grinding motor is operated at a speed of 35r/min-60r/min, the operation of the grinding motor drives a transmission shaft and a support to rotate, and further drives a stone roller to rotate, the rotating stone roller is matched with the grinding disc, the material is ground and supported, and the bamboo pulp falls into a screening assembly under the self weight;
s4, screening, namely, firstly, putting bamboo pulp onto a first vibrating screen with 15-20 meshes, primarily screening, then putting the bamboo pulp onto a second vibrating screen with 70-80 meshes, secondarily screening, putting the screened large particles into a slag washing part, washing at least five times, putting the liquid generated by washing into a screening tank again, assisting the vibrating screen of the second vibrating screen, collecting the slurry screened by the screening tank, standing for 12-18 hours, skimming the supernatant, and drying the residues to obtain starch.
(III) beneficial effects
1. The raw material extraction device for producing the degradable polylactic acid fiber comprises a crushing assembly, a cutting assembly and a cutting assembly, wherein the crushing assembly comprises a stock bin, two crushing motors and two cutting rolls, the cutting rolls are driven to rotate by the operation of the crushing motors, and the two cutting rolls are matched to crush bamboo shoots, tender bamboo leaves or tender bamboo stems, so that the contact area between the bamboo shoots and tender bamboo leaves or tender bamboo stems and the soaking solution is increased, and the subsequent soaking is facilitated;
2. the invention provides a raw material extraction device for producing degradable polylactic acid fibers, which comprises a supporting frame, a soaking box, a flushing part and a material guiding part, wherein a sulfurous acid solution is introduced into the soaking box to soak filtered materials, then the sulfurous acid solution is discharged, the flushing part is used for flushing the materials, the flushing water is discharged after flushing, then a gate is opened, the soaked materials are discharged, and the boring is treated by soaking the sulfurous acid solution, so that the subsequent starch discharge is facilitated;
3. the grinding component comprises a grinding cylinder, a grinding motor, a millstone and a stone roller, wherein the grinding motor is operated to drive a transmission shaft and a bracket to rotate so as to drive the stone roller to rotate, and the rotating stone roller and the millstone are matched to grind materials into bamboo pulp, so that the follow-up starch extraction is facilitated;
4. the invention relates to a raw material extraction device for producing degradable polylactic acid fibers, which comprises a screening tank, a first vibrating screen, a slag washing piece and a second vibrating screen, wherein bamboo pulp firstly falls on the first vibrating screen for preliminary screening, then falls on the second vibrating screen for screening again, large particles after screening enter the slag washing piece for washing at least five times, liquid generated by washing is introduced into the screening tank again, the vibrating screen of the second vibrating screen is assisted, the slurry screened by the screening tank is collected, supernatant is skimmed after standing, and residues are dried, so that starch can be obtained.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view in front cross-section of the present invention;
FIG. 2 is a schematic top view in section of a portion of the structure of the crushing motor of the present invention;
FIG. 3 is a schematic cross-sectional front view of a portion of the structure of the infusion assembly of the present invention;
FIG. 4 is a schematic top view in cross section of the parent pipe portion structure of the present invention;
FIG. 5 is a schematic top view of a portion of the structure of the guide plate and the stop plate of the present invention;
FIG. 6 is a schematic cross-sectional front view of a portion of the abrasive assembly of the present invention;
FIG. 7 is a schematic cross-sectional front view of a portion of the structure of the screening tank and slag washing member of the present invention.
In the figure: 100. a crushing assembly; 110. a storage bin; 120. a crushing motor; 130. a knife roll; 200. a soaking component; 210. a support frame; 220. a soaking box; 221. a fluid supplementing pipe; 222. a liquid discharge pipe; 230. a flushing member; 231. a water conduit; 232. a main pipe; 233. a branch pipe; 234. a nozzle; 240. a material guide; 241. a material guide plate; 242. a limiting plate; 250. a gate; 300. a grinding assembly; 310. a grinding cylinder; 320. a grinding motor; 330. grinding disc; 340. stone roller; 350. a transmission shaft; 360. a bracket; 400. a screen assembly; 410. a screening tank; 411. a level gauge; 412. a material guiding pipe; 413. an electric control valve; 420. a first vibrating screen; 430. slag washing pieces; 431. a slag washing tank; 432. a first feed tube; 433. a second feed tube; 434. a stirring motor; 435. stirring blades; 436. a water pump; 437. a return pipe; 438. a shower head; 439. a water inlet pipe; 440. and a second vibrating screen.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be understood that the terms "longitudinal," "upper," "lower," "left," "right," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
As shown in fig. 1 to 7, a raw material extraction device for producing degradable polylactic acid fibers comprises a crushing assembly 100, a soaking assembly 200, a grinding assembly 300 and a sieving assembly 400, wherein the crushing assembly 100 is installed at the upper part of the soaking assembly 200, the grinding assembly 300 is connected with the soaking assembly 200 through a belt conveyor, the sieving assembly 400 is installed at the lower part of the grinding assembly 300, wherein:
the crushing assembly 100 comprises a bin 110, two crushing motors 120 and two knife rolls 130, wherein the two crushing motors 120 are respectively arranged on the side wall of the bin 110, the two knife rolls 130 are respectively and rotatably arranged between the inner walls of the bin 110, and the two knife rolls 130 are respectively connected with the output ends of the two crushing motors 120 in a transmission manner;
the soaking assembly 200 comprises a supporting frame 210, a soaking box 220, a flushing part 230 and a material guiding part 240, wherein a gate 250 is arranged on the lower side part of the soaking box 220, the soaking box 220 is arranged on the upper part of the supporting frame 210, a storage bin 110 is arranged on the upper part of the soaking box 220, the lower part of the storage bin 110 is communicated with the soaking box 220, the flushing part 230 is arranged on the side part of the soaking box 220, the material guiding part 240 is arranged on the side part of the soaking box 220, and the material guiding part 240 is arranged on the lower part of the gate 250;
the grinding assembly 300 comprises a grinding cylinder 310, a grinding motor 320, a grinding disc 330 and a stone roller 340, wherein the grinding cylinder 310 is connected with a material guide 240 through a conveying belt, the grinding disc 330 is arranged at the inner center of the grinding cylinder 310, the grinding motor 320 is arranged at the upper part of the grinding cylinder 310, a transmission shaft 350 is arranged at the output end of the grinding motor 320, a bracket 360 is arranged at the side part of the transmission shaft 350, the stone roller 340 is rotatably arranged at the side part of the bracket 360, and the lower wall of the stone roller 340 is attached to the upper wall of the grinding disc 330;
the screen assembly 400 includes a screen tank 410, a first vibrating screen 420, a slag washing member 430 and a second vibrating screen 440, the grinding drum 310 is installed at the upper portion of the screen tank 410, the first vibrating screen 420 is installed at the inside of the screen tank 410, the second vibrating screen 440 is installed at the inside of the screen tank 410, the feeding end of the slag washing member 430 is connected with the sides of the screen tank 410 adjacent to the first vibrating screen 420 and the second vibrating screen 440, respectively, and the discharging end of the slag washing member 430 is connected with the portion of the screen tank 410 adjacent to between the first vibrating screen 420 and the second vibrating screen 440.
Specifically, the two knife rolls 130 are oppositely arranged, the rotation directions of the two knife rolls 130 are opposite, and the two knife rolls 130 with opposite rotation directions can effectively crush by adopting a mode of opposite extrusion crushing.
Specifically, the upper side of the soaking tank 220 is connected with a fluid infusion tube 221, the lower side of the soaking tank 220 is connected with a fluid discharge tube 222, the fluid infusion tube 221 is used for supplementing sulfurous acid solution, and the fluid discharge tube 222 is used for discharging soaking solution and/or flushing solution.
Specifically, the flushing member 230 includes a water conduit 231, a main pipe 232, a branch pipe 233 and a nozzle 234, the water conduit 231 is connected to the side portion of the soaking tank 220, the main pipe 232 is connected to the water outlet end of the water conduit 231, the branch pipe 233 is connected to the side portion of the main pipe 232, the branch pipe 233 extends into the soaking tank 220, the nozzle 234 is mounted on the side portion of the branch pipe 233, the main pipe 232 is arranged in a rectangular ring, the main pipe 232 is sleeved on the outer wall of the soaking tank 220, clear water is introduced by the water conduit 231 and enters the branch pipe 233 through the main pipe 232, and the material is sprayed out from the nozzle 234, so that flushing of the soaked material is realized.
Specifically, the material guiding member 240 includes a material guiding plate 241 and two limiting plates 242, the material guiding plate 241 is connected to a side portion of the soaking tank 220 adjacent to the gate 250, the two limiting plates 242 are symmetrically disposed on an upper wall of the material guiding plate 241, the material guiding plate 241 is inclined by 30 ° -45 ° below a horizontal plane, and the material guiding plate 241 is used for guiding materials.
Specifically, the lower part of screening jar 410 is the infundibulate setting, and the charge level indicator 411 is installed to the lateral part of screening jar 410, and charge level indicator 411 is used for detecting the material level, and the drain pipe 412 is installed to the lower lateral part of screening jar 410, and the mid-mounting of drain pipe 412 has electric control valve 413, and drain pipe 412 is used for the discharge of the material after the screening.
Specifically, the slag washing member 430 includes a slag washing tank 431, a first feeding pipe 432, a second feeding pipe 433, a stirring motor 434, stirring blades 435, a water pump 436, a return pipe 437 and a shower head 438, wherein a water inlet pipe 439 is installed at the side of the slag washing tank 431, the first feeding pipe 432 and the second feeding pipe 433 are both connected to the side of the slag washing tank 431, the feeding end of the first feeding pipe 432 is adjacent to the side of the first vibrating screen 420 with respect to the screening tank 410, the feeding end of the second feeding pipe 433 is adjacent to the side of the second vibrating screen 440 with respect to the screening tank 410, the stirring motor 434 is installed at the upper portion of the slag washing tank 431, the stirring blades 435 are installed at the output end of the stirring motor 434, the stirring blades 435 extend into the inside of the slag washing tank 431, the liquid inlet end of the water pump 436 is communicated with the slag washing tank 431, the return pipe 437 is installed at the liquid outlet end of the water pump 437, the return pipe 438 is connected to the position between the screening tank 410 and the first vibrating screen 420 and the second vibrating screen 440, the shower head 438 is installed at the liquid outlet end of the shower head 438 is inside the screening tank 410.
In addition, the invention also provides an extraction method of the raw material for producing the degradable polylactic acid fiber, which comprises the following steps:
s1, crushing raw materials, namely putting bamboo shoots, tender bamboo leaves or tender bamboo shoots into a crushing assembly 100, driving a cutter roller 130 to rotate by utilizing the operation of a crushing motor 120, crushing the bamboo shoots, the tender bamboo leaves or the tender bamboo shoots into 4cm-7cm strip-shaped fragments, and enabling the crushed materials to fall into a soaking box 220 under the dead weight;
s2, soaking, namely introducing a sulfurous acid solution with the temperature of 40-60 ℃ into a soaking box 220, soaking the filtered material for 48-72 hours, then discharging the sulfurous acid solution, flushing the material by a flushing piece 230, discharging flushing water after flushing, then opening a gate 250, and conveying the soaked material to a grinding assembly 300 through a conveying belt;
s3, grinding, wherein the soaked material falls into the upper part of the grinding disc 330, the grinding motor 320 is operated at the speed of 35r/min-60r/min, the operation of the grinding motor 320 drives the transmission shaft 350 and the bracket 360 to rotate, and further drives the stone roller 340 to rotate, the rotating stone roller 340 is matched with the grinding disc 330 to grind the material into bamboo pulp, and the bamboo pulp falls into the screening assembly 400 under the dead weight;
s4, screening, namely, firstly, the bamboo pulp falls onto a first vibrating screen 420 with 15-20 meshes for preliminary screening, then falls onto a second vibrating screen 440 with 70-80 meshes for secondary screening, the screened large particles enter a slag washing part 430 for washing at least five times, the liquid generated by washing is introduced into a screening tank 410 again, the vibrating screen of the second vibrating screen 440 is assisted, the slurry screened by the screening tank 410 is collected, standing is carried out for 12-18 hours, supernatant is skimmed, and residues are dried, so that starch can be obtained.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a degradable polylactic acid is raw and other materials extraction element for fiber production, includes crushing subassembly (100), soaking subassembly (200), grinding subassembly (300) and screening subassembly (400), its characterized in that: the crushing assembly (100) is installed on the upper part of the soaking assembly (200), the grinding assembly (300) is connected with the soaking assembly (200) through a belt conveyor, and the screening assembly (400) is installed on the lower part of the grinding assembly (300), wherein: the crushing assembly (100) comprises a bin (110), two crushing motors (120) and two knife rolls (130), wherein the two crushing motors (120) are respectively arranged on the side wall of the bin (110), the two knife rolls (130) are respectively rotatably arranged between the inner walls of the bin (110), and the two knife rolls (130) are respectively in transmission connection with the output ends of the two crushing motors (120);
the soaking assembly (200) comprises a supporting frame (210), a soaking box (220), a flushing part (230) and a material guide part (240), wherein a gate (250) is arranged on the lower side part of the soaking box (220), the soaking box (220) is arranged on the upper part of the supporting frame (210), a storage bin (110) is arranged on the upper part of the soaking box (220), the lower part of the storage bin (110) is communicated with the soaking box (220), the flushing part (230) is arranged on the side part of the soaking box (220), the material guide part (240) is arranged on the side part of the soaking box (220), and the material guide part (240) is arranged on the lower part of the gate (250); the grinding assembly (300) comprises a grinding cylinder (310), a grinding motor (320), a grinding disc (330) and a stone roller (340), wherein the grinding cylinder (310) is connected with the material guide (240) through a conveying belt, the grinding disc (330) is installed at the inner center of the grinding cylinder (310), the grinding motor (320) is installed at the upper part of the grinding cylinder (310), a transmission shaft (350) is installed at the output end of the grinding motor (320), a support (360) is installed at the side part of the transmission shaft (350), the stone roller (340) is rotatably installed at the side part of the support (360), and the lower wall of the stone roller (340) is attached to the upper wall of the grinding disc (330);
the screening assembly (400) comprises a screening tank (410), a first vibrating screen (420), a slag washing piece (430) and a second vibrating screen (440), wherein the grinding drum (310) is installed on the upper portion of the screening tank (410), the first vibrating screen (420) is installed in the screening tank (410), the second vibrating screen (440) is installed in the screening tank (410), the feeding end of the slag washing piece (430) is respectively connected with the side portions, adjacent to the first vibrating screen (420) and the second vibrating screen (440), of the screening tank (410), and the discharging end of the slag washing piece (430) is connected with a portion, adjacent to the first vibrating screen (420) and between the second vibrating screen (440), of the screening tank (410).
The two knife rolls (130) are oppositely arranged, and the rotation directions of the two knife rolls (130) are opposite;
the upper side part of the soaking box (220) is connected with a liquid supplementing pipe (221), and the lower side part of the soaking box (220) is connected with a liquid draining pipe (222);
the flushing part (230) comprises a water guide pipe (231), a main pipe (232), a branch pipe (233) and a nozzle (234), wherein the water guide pipe (231) is connected to the side part of the soaking box (220), the main pipe (232) is connected to the water outlet end of the water guide pipe (231), the branch pipe (233) is connected to the side part of the main pipe (232), the branch pipe (233) stretches into the soaking box (220), and the nozzle (234) is arranged on the side part of the branch pipe (233).
2. The raw material extraction device for producing degradable polylactic acid fiber according to claim 1, wherein: the main pipe (232) is arranged in a rectangular ring, and the main pipe (232) is sleeved on the outer wall of the soaking box (220).
3. The raw material extraction device for producing degradable polylactic acid fiber according to claim 1, wherein: the guide piece (240) comprises a guide plate (241) and two limiting plates (242), the guide plate (241) is connected to the side part, adjacent to the gate (250), of the soaking box (220), the two limiting plates (242) are symmetrically arranged on the upper wall of the guide plate (241), and the guide plate (241) is inclined by 30-45 degrees below the horizontal plane.
4. The raw material extraction device for producing degradable polylactic acid fiber according to claim 1, wherein: the lower part of screening jar (410) is the infundibulate setting, charge level indicator (411) are installed to the lateral part of screening jar (410), guide pipe (412) are installed to the downside of screening jar (410), electric control valve (413) are installed to the mid-mounting of guide pipe (412).
5. The raw material extraction device for producing degradable polylactic acid fiber according to claim 1, wherein: the slag washing piece (430) comprises a slag washing tank (431), a first feeding pipe (432), a second feeding pipe (433), a stirring motor (434), stirring blades (435), a water pump (436), a backflow pipe (437) and a shower head (438), wherein a water inlet pipe (439) is arranged on the side part of the slag washing tank (431), the first feeding pipe (432) and the second feeding pipe (433) are connected to the side part of the slag washing tank (431), the feeding end of the first feeding pipe (432) is adjacent to the side part of the screening tank (410) of the first vibrating screen (420), the feeding end of the second feeding pipe (433) is adjacent to the side part of the screening tank (410) of the second vibrating screen (440), the stirring motor (434) is arranged on the upper part of the slag washing tank (431), the stirring blades (435) are arranged at the output end of the stirring motor (434), the stirring blades (435) extend into the inside of the slag washing tank (431), the water pump (436) is connected between the feeding end of the slag pump (435) and the backflow pipe (437) and the second vibrating screen (420) of the second vibrating screen (437), the shower head (438) is arranged at the liquid outlet end of the backflow pipe (437), and the shower head (438) is arranged in the screening tank (410).
6. An extraction method using the raw material extraction device for producing degradable polylactic acid fiber according to claim 1, characterized by comprising the steps of: the method specifically comprises the following steps:
s1, crushing raw materials, namely putting bamboo shoots, tender bamboo leaves or tender bamboo branches into a crushing assembly, driving a knife roll to rotate by utilizing the operation of a crushing motor, crushing the bamboo shoots, the tender bamboo leaves or the tender bamboo branches into 4cm-7cm strip-shaped fragments, and enabling the crushed materials to fall into a soaking box under the dead weight;
s2, soaking, namely introducing a sulfurous acid solution with the temperature of 40-60 ℃ into a soaking box, soaking the filtered material for 48-72 hours, then discharging the sulfurous acid solution, flushing the material by using a flushing piece, discharging flushing water after flushing, then opening a gate, and conveying the soaked material to a grinding assembly through a conveying belt;
s3, grinding, wherein the soaked material falls into the upper part of the grinding disc, a grinding motor is operated at a speed of 35r/min-60r/min, the operation of the grinding motor drives a transmission shaft and a support to rotate, and further drives a stone roller to rotate, the rotating stone roller is matched with the grinding disc, the material is ground into bamboo pulp, and the bamboo pulp falls into a screening assembly under the dead weight;
s4, screening, namely, firstly, putting bamboo pulp onto a first vibrating screen with 15-20 meshes, primarily screening, then putting the bamboo pulp onto a second vibrating screen with 70-80 meshes, secondarily screening, putting the screened large particles into a slag washing part, washing at least five times, putting the liquid generated by washing into a screening tank again, assisting the vibrating screen of the second vibrating screen, collecting the slurry screened by the screening tank, standing for 12-18 hours, skimming the supernatant, and drying the residues to obtain starch.
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| CN117225544B (en) * | 2023-09-14 | 2024-05-03 | 连云港锐智新材料有限公司 | Rinsing equipment with crushing mechanism for silicon micropowder production and rinsing method thereof |
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