CN109198653A - It is used to prepare the device of wood fiber powder - Google Patents

It is used to prepare the device of wood fiber powder Download PDF

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Publication number
CN109198653A
CN109198653A CN201811099443.5A CN201811099443A CN109198653A CN 109198653 A CN109198653 A CN 109198653A CN 201811099443 A CN201811099443 A CN 201811099443A CN 109198653 A CN109198653 A CN 109198653A
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CN
China
Prior art keywords
screw rod
section
fiber powder
wood fiber
screw
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811099443.5A
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Chinese (zh)
Inventor
张楠
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SHANGHAI TONNOR MATERIAL SCIENCE CO Ltd
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SHANGHAI TONNOR MATERIAL SCIENCE CO Ltd
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Application filed by SHANGHAI TONNOR MATERIAL SCIENCE CO Ltd filed Critical SHANGHAI TONNOR MATERIAL SCIENCE CO Ltd
Priority to CN201811099443.5A priority Critical patent/CN109198653A/en
Publication of CN109198653A publication Critical patent/CN109198653A/en
Priority to PCT/CN2019/079459 priority patent/WO2020057082A1/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L33/00Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
    • A23L33/20Reducing nutritive value; Dietetic products with reduced nutritive value
    • A23L33/21Addition of substantially indigestible substances, e.g. dietary fibres
    • A23L33/22Comminuted fibrous parts of plants, e.g. bagasse or pulp
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23PSHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY A SINGLE OTHER SUBCLASS
    • A23P30/00Shaping or working of foodstuffs characterised by the process or apparatus

Abstract

The invention discloses a kind of devices for being used to prepare wood fiber powder, including screw rod cavity, screw rod, speed reducer, feed inlet, discharge port, bracket and pedestal, the feed inlet connects vertically disposed screw conveyor, the vertically disposed screw conveyor top is equipped with the first opening far from the side of discharge port, first opening is connected with horizontally disposed screw conveyor, the horizontally disposed screw conveyor top is equipped with the second opening, second upper opening portion is equipped with loading hopper, and second opening is connected to the loading hopper.Device provided by the present invention for preparing wood fiber powder handles wood fibre, overcome the phenomenon that charging of wood fibre material is easy to produce " bridging ", and pass through the variation of the temperature and pressure in control described device, obtain the lignin fibre powder of high water conservation oil absorbency, water absorbent rate >=8 of gained wood fiber powder, oil suction multiplying power >=6.

Description

It is used to prepare the device of wood fiber powder
Technical field
The present invention relates to cellulose production fields.It is more particularly related to which one kind is used to prepare wood fiber powder Device.
Background technique
Cellulose can be used as filtration adjuvant and anticaking agent, stabilizer and coagulator, thickener as food additives, make It is widely used in the food such as cheese product, batter, baked goods, Western-style ham, meat enema, sauce for additive, with screw rod For formula extruder as basic Preparation equipment, existing screw-type extruder is that the pressure generated by screw rod rotation and shearing force make Material uniformly mixes, and existing screw-type extruder or extruder are mostly and the wood fibres for food, field of fodder The physical property of itself is more special, has the characteristics that density is small, meets pine, volume is big, mobility is bad, existing screw extrusion Machine, the feeding stage before material enters screw rod cavity are easy to appear " bridging phenomenon ", i.e. material is arranged at the top of addition vessel, under Portion does not have material, the phenomenon that empty shape occurs during material movement.Wood fibre is as food additives in use, cellulose Water conservation oil absorbency it is more more excellent better, prior art device preparation wood fiber powder water absorbent rate and oil suction multiplying power all exist 6 hereinafter, performance is poor.
Summary of the invention
It is an object of the invention to solve at least the above problems, and provide the advantages of at least will be described later.
It is a still further object of the present invention to provide a kind of devices for being used to prepare wood fiber powder, overcome wood fibre first The phenomenon that charging is easy to produce material " bridging ", secondly, the device handles the water conservation oil absorbency of wood fiber powder obtained It is excellent, water absorbent rate >=8 of gained wood fiber powder, oil suction multiplying power >=6.
In order to realize these purposes and other advantages according to the present invention, a kind of dress for preparing wood fiber powder is provided It sets, comprising:
Including screw rod cavity, screw rod, speed reducer, feed inlet, discharge port, bracket and pedestal, the feed inlet connection is vertical The screw conveyor of setting, the vertically disposed screw conveyor top are equipped with the first opening, institute far from the side of discharge port It states the first opening and is connected with horizontally disposed screw conveyor, the horizontally disposed screw conveyor top is equipped with second and opens Mouthful, second upper opening portion is equipped with loading hopper, and second opening is connected to the loading hopper;Because of the physical property of fibre material, The features such as density is small, fluffy, volume is big, mobility is bad, so material need to be to force the shape of pan feeding when entering screw rod cavity Material is added into screw rod cavity formula, in horizontal conveyer exit, installs a vertical conveyor, vertical conveyor is The form of screw conveyor, horizontal conveyer outlet are connected with the entrance of vertical conveyor, mandatory that material is defeated by level It send machine to pass through vertical conveyor again and screw rod cavity into purifying machine is added.
Preferably, 1~4, blender that vertical direction is arranged successively is provided in the loading hopper;Due to fibre object Expect that density is small, more fluffy, volume is also bigger, so multiple blenders are set according to the height of loading hopper in loading hopper, " bridging " phenomenon is generated when preventing material from entering horizontal screw conveyer, i.e., material is arranged at loading hopper top, but lower part does not have material, There is the phenomenon that empty shape.
Preferably, the screw rod cavity, both ends open are horizontally disposed with, and the feed inlet is opened in close to the screw rod Cavity top open at one end, another end opening are discharge port, two screw rods are arranged in parallel in the screw rod cavity, close to charging Mouthful screw rod one end driven and rotate by speed reducer, the spiral of different screw pitch is arranged by section the every screw rod, from feed opening to The section is divided into feeding section, mixes and cut section and squeeze discharge zone by discharge port, and the Screw Parameters in each section are as follows:
Feeding section: screw diameter be the screw pitch between 30~285mm, spiral be 40~320mm, draw ratio is 5~55, lead For 60~570mm;
It is mixed to cut section: screw diameter be the screw pitch between 30~285mm, spiral be 10~320mm, draw ratio is 4~55, lead For 60~570mm;
Squeeze discharge zone: screw diameter be the screw pitch between 30~285mm, spiral be 10~320mm, draw ratio is 1~55, Lead is 60~570mm;
Screw pitch between the spiral is successively decreased in gradient from feeding section to discharge zone is squeezed;What is provided through the invention is used to make The device of standby sugarcane food fibre powder, material pass through the feeding section of screw rod, mix and cut section, squeeze discharge zone, are transported to screw rod cavity Discharge outlet discharging;The screw pitch of each section is gradually successively decreased or gradient is successively decreased, and is obtained into the bulk material after screw rod cavity To squeeze, the volume of material is set to become smaller, material is closer, carries out again to material entered back into the smaller section of screw pitch behind benefit It is broken, squeeze, rubbing the effects of;During transportation with the variation of fineness of materials, the screw pitch of different gradients makes material Material reach discharge outlet granularity more it is thin more evenly so that subsequent fine grinding is more light;
The screw rod containment portion is provided with electrical induction device, and the operating temperature in each section is as follows:
Feeding section operating temperature is 50~170 DEG C, a mixed section operating temperature of cutting is 80~170 DEG C, squeezes discharge zone work temperature Degree is 80~250 DEG C;
The operating temperature increases in gradient from feeding section to discharge zone is squeezed;Material is in the process Jing Guo screw rod transmission In, cavity of the screw rod cavity by electrical induction device to each section is heated by the temperature of setting, so that contained in material Water transform at vapor, increase the intracorporal pressure of screw rod chamber, when the temperature and pressure of screw rod cavity reaches certain range Interior, beta cellulose and gamma-cellulose decompose rapidly in fibre material, improve the content of chemical cellulose in fibre material, reach purifying mesh 's;.
Preferably, pressure regulator panel is set outside the discharge port, the pressure regulator panel is parallel with the discharge port Be oppositely arranged, the horizontal distance between the discharge port is adjustable, adjust between pressure regulator panel and discharge port it is horizontal away from From, thus it is possible to vary pressure size of the material in screw rod cavity, control discharge port pressure are 0.5~10Mpa, further increase fibre The effect for tieing up material purifying, improves the content of chemical cellulose;It is controlled and is discharged using adjustable pressure regulator panel, more traditional examination Material mold is more suitable for cellulose substances, can effectively prevent material in discharging mold mouth and generates " bridging " phenomenon, blocks discharge port; The discharge outlet also sets up outer cover, controls discharging direction.
Preferably, the axis output end of shaft coupling of the axle portion of the screw rod in the form of rectangular spline and the speed reducer connects It connects, and is aided with nut and locks, the rotation direction of the nut is identical as the rotation direction of the screw rod;The screw rod cavity subtracts with described Fast machine output end is connected with shaft coupling;The speed reducer input terminal is driven by a motor by belt.
Preferably, the screw rod cavity can also be that multisection type is arranged, and pass through bolt, flanged joint between every section;It is described Screw rod can also be that multisection type is arranged, and be connected between every section with the structure of rectangular spline;The mixed screw rod for cutting section can also divide For three segments, along discharge port direction, screw pitch is successively decreased in gradient.
Preferably, it slots on the outside of the screw rod cavity, pipeline is set in slot, passes to circulating water;Apart from the electricity Temperature sensor is installed on the screw rod cavity of induction heating apparatus certain distance;Temperature sensing is installed in the discharge outlet Device;All the sensors all add protective case.
Preferably, it mixes to cut and screw slotting is set in section and the spiral of extruding discharge zone, material is allowed to lead to from fluting It crosses.
Preferably, based on the above-mentioned method for being used to prepare wood fiber powder device and preparing wood fiber powder, comprising:
Step 1: needlebush is crushed to 30 mesh, it is spare to obtain wood fragments;
Step 2: wood fragments obtained by step 1 to be passed through to the device processing for being used to prepare wood fiber powder, feeding section is set It is 150~250 that operating temperature, which is 50~80 DEG C, the mixed operating temperature for cutting section is 80~150 DEG C, squeezes discharge zone operating temperature DEG C, the operating temperature increases in gradient from feeding section to discharge zone is squeezed;Residence time of material is less than or equal to 20min, material Outlet pressure is controlled in 2~10Mpa, obtains extruded stock;
Step 3: extruded stock obtained by step 2 is successively carried out soda boiling, washing, bleaching, dehydration, moisture content 20~50% is obtained Water-containing materials;
Step 4: water-containing materials obtained by step 3 to be passed through to the device processing for being used to prepare wood fiber powder, setting again The operating temperature of feeding section, which is 50~80 DEG C, the mixed operating temperature for cutting section is 80~120 DEG C, squeezes discharge zone operating temperature is 120~180 DEG C, the operating temperature increases in gradient from feeding section to discharge zone is squeezed;Residence time of material is less than or equal to 10min, pressure control obtains secondary extruded stock in 0.5~5Mpa at material outlet;
Step 5: secondary extruded stock obtained by step 4 is dried, target fineness is crushed to up to the wood fibre Powder.
Preferably, chlorine bleaches is free of in the bleaching process.
The present invention is include at least the following beneficial effects: material " bridging " phenomenon occurring when one, wood fibre being avoided to feed, makes At can not feed;Two, preparation process is handled by being used to prepare the device of wood fiber powder, is used to prepare wooden fibre by control The temperature and pressure in the device of powder is tieed up, the lignin fibre powder of high water conservation oil absorbency, the suction of gained wood fiber powder are obtained Water multiplying power >=8, oil suction multiplying power >=6;Three, choosing needlebush is raw material, has better water imbibition, the wooden fibre of gained compared with leaf wood The water conservation oil absorbency for tieing up powder powder is more preferable.
Further advantage, target and feature of the invention will be partially reflected by the following instructions, and part will also be by this The research and practice of invention and be understood by the person skilled in the art.
Detailed description of the invention
Fig. 1 is the schematic diagram of the present invention for wood fiber powder;
Fig. 2 is the schematic diagram of screw rod of the present invention.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art referring to specification text Word can be implemented accordingly.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more The presence or addition of a other elements or combinations thereof.
As shown in Figure 1, 2, a kind of device for being used to prepare sugarcane food fibre powder, including screw rod cavity 10, spiral shell are provided Bar, speed reducer 3, feed inlet, discharge port, bracket 15 and pedestal 17, the feed inlet connect vertically disposed screw conveyor 9, It is driven by vertical conveyor motor 8, vertically disposed 9 top of screw conveyor is equipped with first far from the side of discharge port and opens Mouthful, first opening is connected with horizontally disposed screw conveyor 6, is driven by horizontal conveyer motor 5, and the level is set 6 top of screw conveyor set be equipped with second opening, second upper opening portion be equipped with loading hopper, it is described second opening with it is described Loading hopper 7 is connected to;Because of the physical property of fibre material, the features such as density is small, fluffy, volume is big, mobility is bad, so material into Material need to be added into screw rod cavity 10 in the form of forcing pan feeding when entering screw rod cavity 10, be exported in horizontal conveyer 6 Place, installs a vertical conveyor 9, and vertical conveyor 9 is the form of screw conveyor, the outlet of horizontal conveyer 6 with it is vertical defeated The entrance of machine 9 is sent to be connected, it is mandatory that material is added by vertical conveyor 9 into screw rod cavity 10 again by horizontal conveyer 6 It is interior.
1~4, blender that vertical direction is arranged successively is provided in the loading hopper 7 in one of the embodiments, Since fibre material density is small, more fluffy, volume is also bigger, so being arranged in loading hopper 7 according to the height of loading hopper Multiple blenders generate " bridging " phenomenon when preventing material from entering horizontal screw conveyer 5, i.e. material is arranged at loading hopper top, but Lower part does not have material, there is the phenomenon that empty shape.
The screw rod cavity 10 in one of the embodiments, both ends open are horizontally disposed with, and the feed inlet is opened in Close to the screw rod cavity 10 top open at one end, another end opening is discharge port, is arranged in parallel in the screw rod cavity 10 Two screw rods are driven by speed reducer 3 close to screw rod one end of feed inlet and are rotated, as shown in Fig. 2, the every screw rod is set by section The section is divided into feeding section from feed opening to discharge port, mixes and cut section and squeeze discharge zone, often by the spiral for setting different screw pitch The Screw Parameters in a section are as follows:
Feeding section: screw diameter be the screw pitch between 30~285mm, spiral be 40~320mm, draw ratio is 5~55, lead For 60~570mm;
It is mixed to cut section: screw diameter be the screw pitch between 30~285mm, spiral be 10~320mm, draw ratio is 4~55, lead For 60~570mm;
Squeeze discharge zone: screw diameter be the screw pitch between 30~285mm, spiral be 10~320mm, draw ratio is 1~55, Lead is 60~570mm;
Screw pitch between the spiral is successively decreased in gradient from feeding section to discharge zone is squeezed;What is provided through the invention is used to make The device of standby sugarcane food fibre powder, material pass through the feeding section of screw rod, mix and cut section, squeeze discharge zone, are transported to screw rod cavity 10 discharge outlet discharging;The screw pitch of each section is gradually successively decreased or gradient is successively decreased, to the bulk object after entrance screw rod cavity 10 Material is squeezed, and the volume of material is made to become smaller, and material is closer, is carried out again pair with being entered back into the smaller section of screw pitch behind benefit The effects of the broken of material, extruding, rubbing;Material is during transportation with the variation of fineness of materials, the screw pitch of different gradients So that material reach discharge outlet granularity more it is thin more evenly so that subsequent fine grinding is more light;
Electrical induction device 12 is provided with outside the screw rod cavity 10, the operating temperature in each section is as follows:
Feeding section operating temperature is 50~170 DEG C, a mixed section operating temperature of cutting is 80~170 DEG C, squeezes discharge zone work temperature Degree is 80~250 DEG C;
The operating temperature increases in gradient from feeding section to discharge zone is squeezed;Material is in the process Jing Guo screw rod transmission In, cavity of the screw rod cavity 10 by electrical induction device 12 to each section is heated by the temperature of setting, so that in material Contained water transform increases the pressure in screw rod cavity 10 at vapor, when the temperature and pressure of screw rod cavity 10 reaches one In fixed range, beta cellulose and gamma-cellulose are decomposed rapidly in fibre material, are improved the content of chemical cellulose in fibre material, are reached To purifying purpose.
Pressure regulator panel 13 is set outside the discharge port in one of the embodiments, the pressure regulator panel 13 with The discharge port is oppositely arranged in parallel, and the horizontal distance between the discharge port is adjustable, is adjusted pressure regulator panel 13 and is gone out Horizontal distance between material mouth, thus it is possible to vary pressure size of the material in screw rod cavity 10, control discharge port pressure be 0.5~ 10Mpa further increases the effect of fibre material purifying, improves the content of chemical cellulose;Use adjustable pressure regulator panel 13 Control discharging, more traditional sample mold are more suitable for cellulose substances, can effectively prevent material and " take in discharging mold mouth generation Bridge " phenomenon, blocks discharge port;The discharge outlet also sets up outer cover 14, controls discharging direction.
Shaft coupling of the axle portion of the screw rod in the form of rectangular spline and the speed reducer 3 in one of the embodiments, The connection of axis output end, and be aided with that nut is locked, and the rotation direction of the nut is identical as the rotation direction of the screw rod;The screw rod Cavity 10 is connect with 3 output end of speed reducer with shaft coupling 4;3 input terminal of speed reducer is driven by belt 2 by motor 1.
The screw rod cavity 10 can also be that multisection type is arranged in one of the embodiments, pass through bolt, method between every section Orchid connection;The screw rod can also be that multisection type is arranged, and be connected between every section with the structure of rectangular spline;The mixed spiral shell for cutting section Bar is further divided into three segments, and along discharge port direction, screw pitch is successively decreased in gradient.
It slots on the outside of the screw rod cavity 10 in one of the embodiments, pipeline is set in slot, passes to circulating water, Recirculated water reaches circulation purpose by heat exchanger 16;In the screw rod cavity 10 apart from 13 certain distance of electrical induction device On temperature sensor 11 is installed;Temperature sensor is installed in the discharge outlet;All the sensors all add protective case.
It mixes to cut in one of the embodiments, and screw slotting is set in section and the spiral of extruding discharge zone, allow material Pass through from fluting.
In one of the embodiments, based on the above-mentioned side for being used to prepare wood fiber powder device and preparing wood fiber powder Method, comprising:
Step 1: needlebush is crushed to 30 mesh, it is spare to obtain wood fragments;
Step 2: wood fragments obtained by step 1 to be passed through to the device processing for being used to prepare wood fiber powder, feeding section is set It is 150~250 that operating temperature, which is 50~80 DEG C, the mixed operating temperature for cutting section is 80~150 DEG C, squeezes discharge zone operating temperature DEG C, the operating temperature increases in gradient from feeding section to discharge zone is squeezed;Residence time of material is less than or equal to 20min, material Outlet pressure is controlled in 2~10Mpa, obtains extruded stock;
Step 3: extruded stock obtained by step 2 is successively carried out soda boiling, washing, bleaching, dehydration, moisture content 20~50% is obtained Water-containing materials;
Step 4: water-containing materials obtained by step 3 to be passed through to the device processing for being used to prepare wood fiber powder, setting again The operating temperature of feeding section, which is 50~80 DEG C, the mixed operating temperature for cutting section is 80~120 DEG C, squeezes discharge zone operating temperature is 120~180 DEG C, the operating temperature increases in gradient from feeding section to discharge zone is squeezed;Residence time of material is less than or equal to 10min, pressure control obtains secondary extruded stock in 0.5~5Mpa at material outlet;
Step 5: secondary extruded stock obtained by step 4 is dried, target fineness is crushed to up to the wood fibre Powder.
Chlorine bleaches is free of in the bleaching process in one of the embodiments,.
Embodiment 1
Step 1: log is crushed to 30 mesh, it is spare to obtain wood fragments;
Step 2: gained wood fragments to be passed through to the device processing for being used to prepare wood fiber powder, the work temperature of feeding section is set It is 200 DEG C that degree, which is 60 DEG C, the mixed operating temperature for cutting section is 120 DEG C, squeezes discharge zone operating temperature, and the operating temperature is from charging Section increases in gradient to discharge zone is squeezed;Residence time of material is 15min, and pressure control must be squeezed out in 8Mpa at material outlet Material;
Step 3: gained extruded stock is successively carried out soda boiling, washing, bleaching, dehydration, the hydrate of moisture content 50% is obtained Material;
Step 4: gained water-containing materials to be passed through to the device processing for being used to prepare wood fiber powder again, feeding section is set Operating temperature be 70 DEG C, the mixed operating temperature for cutting section is 110 DEG C, squeezes discharge zone operating temperature is 160 DEG C, the work temperature Degree increases in gradient from feeding section to discharge zone is squeezed;Residence time of material is 8min, and pressure is controlled in 3Mpa at material outlet, Obtain secondary extruded stock;
Step 5: the secondary extruded stock of gained is dried, target fineness is crushed to up to the wood fiber powder, gained Water absorbent rate >=8 of wood fiber powder, oil suction multiplying power >=6.
Embodiment 2
Step 1: log is crushed to 30 mesh, it is spare to obtain wood fragments;
Step 2: gained wood fragments to be passed through to the device processing for being used to prepare wood fiber powder, the work temperature of feeding section is set It is 150 DEG C that degree, which is 50 DEG C, the mixed operating temperature for cutting section is 80 DEG C, squeezes discharge zone operating temperature, and the operating temperature is from charging Section increases in gradient to discharge zone is squeezed;Residence time of material is 20min, and pressure control must be squeezed out in 2Mpa at material outlet Material;
Step 3: gained extruded stock is successively carried out soda boiling, washing, bleaching, dehydration, the hydrate of moisture content 20% is obtained Material;
Step 4: gained water-containing materials to be passed through to the device processing for being used to prepare wood fiber powder again, feeding section is set Operating temperature be 50 DEG C, the mixed operating temperature for cutting section is 80 DEG C, squeezes discharge zone operating temperature is 120 DEG C, the work temperature Degree increases in gradient from feeding section to discharge zone is squeezed;Residence time of material is 10min, and pressure control exists at material outlet 0.5Mpa obtains secondary extruded stock;
Step 5: the secondary extruded stock of gained is dried, target fineness is crushed to up to the wood fiber powder, gained Water absorbent rate >=8 of wood fiber powder, oil suction multiplying power >=6.
Embodiment 3
Step 1: log is crushed to 30 mesh, it is spare to obtain wood fragments;
Step 2: gained wood fragments to be passed through to the device processing for being used to prepare wood fiber powder, the work temperature of feeding section is set It is 250 DEG C that degree, which is 80 DEG C, the mixed operating temperature for cutting section is 150 DEG C, squeezes discharge zone operating temperature, and the operating temperature is from charging Section increases in gradient to discharge zone is squeezed;Small residence time of material is 10min, and pressure control obtains crowded in 10Mpa at material outlet Discharging;
Step 3: gained extruded stock is successively carried out soda boiling, washing, bleaching, dehydration, the hydrate of moisture content 30% is obtained Material;
Step 4: gained water-containing materials to be passed through to the device processing for being used to prepare wood fiber powder again, feeding section is set Operating temperature be 80 DEG C, the mixed operating temperature for cutting section is 120 DEG C, squeezes discharge zone operating temperature is 1180 DEG C, the work Temperature increases in gradient from feeding section to discharge zone is squeezed;Residence time of material is 10min, and pressure control exists at material outlet 5Mpa obtains secondary extruded stock;
Step 5: the secondary extruded stock of gained is dried, target fineness is crushed to up to the wood fiber powder, gained Water absorbent rate >=8 of wood fiber powder, oil suction multiplying power >=6.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited In specific details and legend shown and described herein.

Claims (10)

1. a kind of device for being used to prepare wood fiber powder, including screw rod cavity, screw rod, speed reducer, feed inlet, discharge port, branch Frame and pedestal, which is characterized in that the feed inlet connects vertically disposed screw conveyor, the vertically disposed helical feed Machine top is equipped with the first opening far from the side of discharge port, and first opening is connected with horizontally disposed screw conveyor, The horizontally disposed screw conveyor top be equipped with second opening, second upper opening portion be equipped with loading hopper, described second Opening is connected to the loading hopper.
2. being used to prepare the device of wood fiber powder as described in claim 1, which is characterized in that be provided in the loading hopper Be arranged successively 1~4, blender of vertical direction.
3. being used to prepare the device of wood fiber powder as claimed in claim 2, which is characterized in that the screw rod cavity, both ends Opening is horizontally disposed with, and the feed inlet is opened in close to screw rod cavity top open at one end, and another end opening is discharging Mouthful, two screw rods are arranged in parallel in the screw rod cavity, is driven and is rotated by speed reducer close to screw rod one end of feed inlet, it is described every The spiral of different screw pitch is arranged by section for root screw rod, from feed opening to discharge port by the section be divided into feeding section, it is mixed cut section with And discharge zone is squeezed, the Screw Parameters in each section are as follows:
Feeding section: screw diameter be the screw pitch between 30~285mm, spiral be 40~320mm, draw ratio is 5~55, lead 60 ~570mm;
It is mixed to cut section: screw diameter be the screw pitch between 30~285mm, spiral be 10~320mm, draw ratio is 4~55, lead 60 ~570mm;
Squeeze discharge zone: screw diameter be the screw pitch between 30~285mm, spiral be 10~320mm, draw ratio is 1~55, lead For 60~570mm;
Screw pitch between the spiral is successively decreased in gradient from feeding section to discharge zone is squeezed;
The screw rod containment portion is provided with electrical induction device, and the operating temperature in each section is as follows:
Feeding section operating temperature is 50~170 DEG C, a mixed section operating temperature of cutting is 80~170 DEG C, squeezes discharge zone operating temperature and be 80~250 DEG C;
The operating temperature increases in gradient from feeding section to discharge zone is squeezed.
4. being used to prepare the device of wood fiber powder as claimed in claim 3, which is characterized in that setting outside the discharge port Pressure regulator panel, the pressure regulator panel are oppositely arranged in parallel with the discharge port, with the horizontal distance between the discharge port Adjustable, control discharge port pressure is 0.5~10Mpa;The discharge outlet also sets up outer cover, controls discharging direction.
5. being used to prepare the device of wood fiber powder as claimed in claim 4, which is characterized in that the axle portion of the screw rod is with square The shaft coupling of shape spline form is connect with the axis output end of the speed reducer, and it is locked to be aided with nut, the rotation direction of the nut with The rotation direction of the screw rod is identical;The screw rod cavity is connect with the output end of reducer with shaft coupling;The speed reducer Input terminal is driven by a motor by belt.
6. being used to prepare the device of wood fiber powder as described in claim 1, which is characterized in that the screw rod cavity can be with It is multisection type setting, passes through bolt, flanged joint between every section;The screw rod can also be that multisection type is arranged, with square between every section The structure of shape spline connects;The mixed screw rod for cutting section is further divided into three segments, and along discharge port direction, screw pitch is in gradient Successively decrease.
7. being used to prepare the device of wood fiber powder as described in claim 1, which is characterized in that opened on the outside of the screw rod cavity Slot is arranged pipeline in slot, passes to circulating water;It is installed on the screw rod cavity apart from the electrical induction device certain distance There is temperature sensor;Temperature sensor is installed in the discharge outlet;All the sensors all add protective case.
8. being used to prepare the device of wood fiber powder as described in claim 1, which is characterized in that mixed to cut section and squeeze discharge Screw slotting is set in the spiral of section, material is allowed to pass through from fluting.
9. based on the method according to any one of claims 1 to 8 for being used to prepare wood fiber powder device and preparing wood fiber powder, It is characterised by comprising:
Step 1: needlebush is crushed to 30 mesh, it is spare to obtain wood fragments;
Step 2: wood fragments obtained by step 1 to be passed through to the device processing for being used to prepare wood fiber powder, the work of feeding section is set It is 150~250 DEG C that temperature, which is 50~80 DEG C, the mixed operating temperature for cutting section is 80~150 DEG C, squeezes discharge zone operating temperature, institute Operating temperature is stated to increase in gradient from feeding section to discharge zone is squeezed;Residence time of material is less than or equal to 20min, at material outlet Pressure is controlled in 2~10Mpa, obtains extruded stock;
Step 3: extruded stock obtained by step 2 is successively carried out soda boiling, washing, bleaching, dehydration, containing for moisture content 20~50% is obtained Water material;
Step 4: water-containing materials obtained by step 3 to be passed through to the device processing for being used to prepare wood fiber powder, setting charging again It is 120 that the operating temperature of section, which is 50~80 DEG C, the mixed operating temperature for cutting section is 80~120 DEG C, squeezes discharge zone operating temperature~ 180 DEG C, the operating temperature increases in gradient from feeding section to discharge zone is squeezed;Residence time of material is less than or equal to 10min, object Expect that outlet pressure control in 0.5~5Mpa, obtains secondary extruded stock;
Step 5: secondary extruded stock obtained by step 4 is dried, target fineness is crushed to up to the wood fiber powder.
10. the method for preparing wood fiber powder as claimed in claim 9, which is characterized in that contain in the bleaching process Chlorine bleach.
CN201811099443.5A 2018-09-20 2018-09-20 It is used to prepare the device of wood fiber powder Pending CN109198653A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201811099443.5A CN109198653A (en) 2018-09-20 2018-09-20 It is used to prepare the device of wood fiber powder
PCT/CN2019/079459 WO2020057082A1 (en) 2018-09-20 2019-03-25 Device for preparing dietary fiber powder, and method for preparing dietary fiber powder

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