CN111229369B

CN111229369B - System of smashing of cellulose ether raw materials for production

Info

Publication number: CN111229369B
Application number: CN202010063312.2A
Authority: CN
Inventors: 葛志明
Original assignee: Zhejiang Haishen New Materials Ltd
Current assignee: Zhejiang Haishen New Materials Ltd
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2021-10-01
Anticipated expiration: 2040-01-20
Also published as: CN111229369A

Abstract

The invention discloses a crushing system of cellulose ether production raw materials, which comprises a cotton crusher, a cotton feeder and a coarse material returning machine, wherein the cotton crusher is provided with a cotton loosening working chamber, a crushing working chamber and a feeding hopper, the feeding hopper is arranged above the left side of the cotton loosening working chamber, the cotton loosening device is arranged on the cotton loosening working chamber, the cotton crushing device is arranged on the crushing working chamber, the side surface of the crushing working chamber is provided with a coarse material returning inlet, the lower end of the crushing working chamber is connected with a screening discharge box through a flange, a discharge port of the cotton feeder is arranged above the feeding hopper, a discharge port of the coarse material returning machine is arranged above the coarse material returning inlet, the invention has novel structure and is provided with the cotton loosening device, cotton materials are scattered and loosened to prevent caking, the subsequent crushing efficiency is accelerated, the crushing effect is improved, the screening device is arranged at the outlet of the invention, large-particle-diameter cotton particles are separated and enter the crushing device again to be crushed, the device has the advantages of high crushing efficiency, high utilization rate of raw materials and stable grain diameter of discharged materials.

Description

System of smashing of cellulose ether raw materials for production

Technical Field

The invention relates to the technical field of chemical raw material production equipment, in particular to a crushing system for cellulose ether production raw materials.

Background

Cellulose ether is a high molecular compound with an ether structure prepared from cellulose, the cellulose is a polyhydroxy high molecular compound which is not dissolved or melted, the cellulose can be dissolved in water, dilute alkali solution and organic solvent after etherification, and the cellulose ether has thermoplasticity, has various varieties and excellent performance, and is widely used in industries such as buildings, cement, petroleum, food, textile, detergents, coatings, medicine, paper making, electronic elements and the like.

The cellulose ether is methyl cellulose, hydroxyethyl methyl cellulose, carboxymethyl cellulose, ethyl cellulose, benzyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose and the like according to different etherifying agents, cotton is used as a main raw material in the production of the cellulose ether, and the cotton raw material is crushed firstly and then put into a reaction kettle to react to generate the required cellulose ether in the production.

The requirement on the particle size of cotton grains is high in the reaction generation process of cellulose ether, the cotton grains with large particle size can cause insufficient reaction, raw materials are wasted, impurities are difficult to separate when the impurities are mixed in a finished product, the cotton raw materials are often not too soft, the caking phenomenon exists, the crushing effect of the existing cotton crushing equipment on the cotton raw materials is general, the cotton grains with large particle size are easy to generate, the subsequent chemical reaction process is influenced, the waste of raw materials is serious, and the production efficiency and the production cost are high.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a crushing system for cellulose ether production raw materials.

In order to achieve the purpose, the invention adopts the following technical scheme:

a crushing system for cellulose ether production raw materials comprises a cotton crusher, a cotton feeder and a coarse material returning machine, wherein the cotton crusher is provided with a cotton loosening working chamber, a crushing working chamber and a feeding funnel, the upper end of the crushing working chamber is communicated with the right side of the cotton loosening working chamber, the feeding funnel is arranged above the left side of the cotton loosening working chamber, the cotton loosening device is arranged on the cotton loosening working chamber and is used for scattering cotton materials, the cotton crushing device is arranged on the crushing working chamber and is used for crushing the cotton materials, the side surface of the crushing working chamber is provided with a coarse material returning inlet, the coarse material returning inlet is arranged above the cotton crushing device, the lower end of the crushing working chamber is in flange connection with a screening discharging box which is used for screening the crushed cotton materials, a discharging port of the cotton feeder is arranged right above the feeding funnel, and the screening discharging box is connected with a pipeline of the coarse material returning machine, the discharge port of the coarse material returning machine is arranged right above the coarse material returning inlet, and the discharge port of the coarse material returning machine is provided with a movable discharge assembly.

The coarse fodder feed back entry movable mounting has a removable cover, the removable cover passes through apron fixing bolt composite mounting on coarse fodder feed back entry top, the torsional spring has been cup jointed on the apron fixing bolt composite mounting, torsional spring one end supports in the removable cover below, and the other end supports on coarse fodder feed back entry inside wall, the welding of coarse fodder feed back entry top has the apron stopper to be used for restricting the flip-up highest position of removable cover.

Screening goes out workbin left side upper end and is equipped with screening case feed inlet, screening goes out workbin right side and is connected with coarse fodder outlet pipe, fine material inlet outlet pipe, screening case feed inlet links to each other with crushing working chamber lower extreme flange, screening goes out inboard middle part fixed mounting of workbin and has the screening filter screen, screening filter screen slope installation, screening filter screen height from left to right sets up, coarse fodder outlet pipe connection is in screening filter screen right side low point exit position, screening goes out workbin inboard bottom and is equipped with the blanking slope, blanking slope height from left to right is low, blanking slope right side low point exit position is connected with fine material inlet outlet pipe.

The cotton loosening device comprises a first cotton loosening mechanism and a second cotton loosening mechanism, the first cotton loosening mechanism comprises outer sealing covers, a rotating roller and elastic line assemblies, two outer sealing covers are mounted on the side wall of a cotton loosening working cavity through bolts, the rotating roller is rotatably mounted on the two outer sealing covers, each elastic line assembly comprises a spring seat, a spring and a movable column, the two spring seats are respectively welded and fixed at the end parts of the two sides of the roller surface of the rotating roller, the springs are mounted in the spring seats, the movable columns are inserted in the spring seats, the lower ends of the springs are connected with the spring seats, the upper ends of the springs are connected with the lower ends of the movable columns, elastic lines are fixedly connected between the two corresponding movable columns, a plurality of elastic line assemblies are arranged on the roller surface of the rotating roller, the elastic line assemblies are uniformly distributed by taking the circle center of the rotating roller as the center, and a plurality of collision blocks are uniformly distributed on the inner sides of the outer sealing covers, the utility model discloses a cotton fluffer, including collision piece, rotor, loose cotton mechanism output shaft, loose cotton reducer, be equipped with collision piece inclined plane on the collision piece, the collision piece inclined plane all is met to rotor rotation direction setting, be equipped with the movable column on the movable column and push down the inclined plane, the movable column pushes down the inclined plane and all is met to collision piece inclined plane setting, one side pivot of rotor extends to the loose cotton working chamber outside and key installs rotor transmission band pulley, second loose cotton mechanism is unanimous with first loose cotton mechanism structure, be connected with loose cotton mechanism drive assembly in the opposite side pivot of the rotor of first loose cotton mechanism, loose cotton mechanism drive assembly includes loose cotton driving motor, loose cotton reduction gear, loose cotton driving motor output shaft links to each other with the loose cotton reduction gear, loose cotton reduction gear output end links to each other with the rotor rotation roller pivot, first loose cotton mechanism passes through rotor transmission band pulley belt drive with second loose cotton mechanism.

The cotton crushing device comprises a first crushing roller, a second crushing roller, a third crushing roller, a fourth crushing roller and a crushing roller driving assembly, wherein the first crushing roller and the second crushing roller are in a group, the third crushing roller and the fourth crushing roller are in a group, two groups of rollers are matched for operation, a material guiding inclined block is arranged above the first crushing roller and the second crushing roller and fixed on the side wall of a crushing working cavity, a brush wheel mounting frame is fixedly arranged on the side wall of the crushing working cavity and provided with a cleaning brush wheel, the lower positions of the first crushing roller, the second crushing roller, the third crushing roller and the fourth crushing roller are provided with a cleaning brush wheel, the cleaning brush wheel is driven to rotate by a cleaning brush wheel driving motor arranged on the side wall of the crushing working cavity, one rotating shafts of the first crushing roller, the second crushing roller, the third crushing roller and the fourth crushing roller extend outwards and are connected with a crushing roller belt wheel, crushing roller drive assembly includes first crushing roller driving motor, second crushing roller driving motor, first crushing roller driving motor output shaft is connected with the pivot of third crushing roller, through crushing roller driving pulley belt transmission between first crushing roller, the third crushing roller, second crushing roller driving motor output shaft is connected with the pivot of fourth crushing roller, through crushing roller driving pulley belt transmission between second crushing roller, the fourth crushing roller.

The rotation directions of the first crushing roller and the third crushing roller, and the rotation directions of the second crushing roller and the fourth crushing roller are opposite, and the rotation directions of the cleaning brush wheels below the first crushing roller, the third crushing roller, the second crushing roller and the fourth crushing roller are opposite to the rotation directions of the cleaning brush wheels.

The movable discharging assembly comprises a movable pipe sleeve and pipe sleeve push-pull air cylinders, the movable pipe sleeve is movably sleeved on a discharge port of the coarse material returning machine, the pipe sleeve push-pull air cylinders are fixed at positions near the discharge port of the coarse material returning machine, a plurality of air cylinder push plates are welded on the outer side wall of the movable pipe sleeve, the number of the air cylinder push plates is consistent with that of the pipe sleeve push-pull air cylinders, a piston rod of each pipe sleeve push-pull air cylinder is connected with each air cylinder push plate, and the size of the outer wall of the movable pipe sleeve is matched with that of a coarse material returning inlet.

The invention has the beneficial effects that: the cotton loosening device is novel in structure, firstly loosens and loosens cotton materials to prevent the cotton materials from caking, quickens the subsequent crushing efficiency and improves the crushing effect, the screening device is arranged at the outlet of the cotton loosening device to separate cotton grains with large grain diameters and then the cotton grains enter the crushing device again to be crushed, and the cotton loosening device has the advantages of high crushing efficiency, high utilization rate of raw materials and stable grain diameter of discharged materials.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a schematic view of the construction of the outer cap of the present invention;

FIG. 3 is a schematic view of the internal structure of the fluffer mechanism of the present invention;

FIG. 4 is a schematic view of the connection structure of the thread-ejecting assembly and the rotating roller according to the present invention;

FIG. 5 is a schematic view of the operation of the fluffer mechanism of the present invention;

FIG. 6 is a view of the invention taken from the direction A of FIG. 1;

FIG. 7 is a schematic view showing the inner structure of a pulverization working chamber of the present invention;

FIG. 8 is a view of the invention taken along line B of FIG. 1;

FIG. 9 is a schematic view of the drive connection of the pulverizing roller of the present invention;

FIG. 10 is a schematic view of the internal structure of the screening discharge bin of the present invention;

FIG. 11 is a schematic view of the operation of the movable discharge assembly and coarse feed back inlet of the present invention;

FIG. 12 is an enlarged view of the invention at C of FIG. 11;

fig. 13 is a structural view of a removable cover attachment part of the present invention.

In the figure: the cotton crusher 1, the cotton loosening working chamber 11, the crushing working chamber 12, the feeding hopper 13, the coarse material return inlet 14, the movable cover plate 141, the cover plate fixing bolt combination 142, the torsion spring 143, the cover plate limiting block 144, the screening discharging box 15, the screening box feeding inlet 151, the screening filter 152, the blanking slope 153, the coarse material outlet pipe 154, the fine material inlet and outlet pipe 155, the cotton loosening device 2, the first cotton loosening mechanism 21, the outer cover 211, the impact block 2111, the impact block inclined plane 2112, the rotating roller 212, the elastic wire component 213, the spring seat 2131, the spring 2132, the movable column 2133, the elastic wire 2134, the movable column downward pressing inclined plane 2135, the rotating roller driving pulley 214, the second cotton loosening mechanism 22, the cotton loosening mechanism driving component 23, the cotton loosening driving motor 231, the cotton loosening speed reducer 232, the cotton crushing device 3, the first crushing roller 31, the second crushing roller 32, the third crushing roller 33, the fourth crushing roller 34, the material guiding inclined block 35, The device comprises a brush wheel mounting frame 36, a cleaning brush wheel 37, a cleaning brush wheel driving motor 371, a crushing roller driving belt wheel 38, a crushing roller driving component 39, a first crushing roller driving motor 391, a second crushing roller driving motor 392, a cotton feeder 4, a coarse material returning machine 5, a movable discharging component 51, a movable pipe sleeve 511, a pipe sleeve push-pull air cylinder 512 and an air cylinder push plate 513.

Detailed Description

The present invention will be further described with reference to the following drawings and detailed description, wherein "left", "right", etc. are described with reference to fig. 1:

as shown in fig. 1-13, a crushing system for cellulose ether production raw materials comprises a cotton crusher 1, a cotton feeder 4, and a coarse material returning machine 5, wherein the cotton crusher 1 is provided with a cotton loosening working chamber 11, a crushing working chamber 12, and a feed hopper 13, the upper end of the crushing working chamber 12 is communicated with the right side of the cotton loosening working chamber 11, the feed hopper 13 is arranged above the left side of the cotton loosening working chamber 11, the cotton loosening working chamber 11 is provided with a cotton loosening device 2 for scattering cotton materials, the crushing working chamber 12 is provided with a cotton crushing device 3 for crushing cotton materials, the side of the crushing working chamber 12 is provided with a coarse material returning inlet 14, the coarse material returning inlet 14 is arranged above the cotton crushing device 3, screened cotton particles which do not meet the particle size requirement enter the cotton crushing device 3 again through the coarse material returning inlet 14 for secondary crushing, the lower end of the crushing working chamber 12 is flange-connected with a screening discharge box 15 for screening the crushed cotton materials, the cotton powder particles with large particle size and small particle size are respectively output, a discharge port of a cotton feeder 4 is arranged right above a feeding funnel 13, the cotton feeder 4 is used for conveying cotton materials into a cotton crusher 1, the conveyed cotton materials are ginned cotton materials after the seed removing operation, a screening discharge box 15 is connected with a coarse material returning machine 5 through a pipeline, coarse materials with large particle size are conveyed into a coarse material returning machine 5 through a pipeline, a discharge hole of the coarse material returning machine 5 is arranged right above a coarse material returning inlet 14, cotton particles with large particle size are returned into the coarse material returning inlet 14 by the coarse material returning machine 5, the cotton feeder 4 and the coarse material returning machine 5 are scraper conveyors, this type of conveyor is prior art and will not be described in detail herein, and the discharge port of the coarse material returning machine 5 is provided with a movable discharging assembly 51, and the movable discharging assembly 51 is used for cooperating with the coarse material returning inlet 14 to return materials.

The coarse material feed back inlet 14 is movably provided with a movable cover plate 141, the movable cover plate 141 is installed at the top end of the coarse material feed back inlet 14 through a cover plate fixing bolt combination 142, a torsion spring 143 is sleeved on the cover plate fixing bolt combination 142, one end of the torsion spring 143 abuts against the lower portion of the movable cover plate 141, the other end of the torsion spring 143 abuts against the inner side wall of the coarse material feed back inlet 14, a cover plate limiting block 144 is welded at the top end of the coarse material feed back inlet 14 and used for limiting the upward turning-up highest position of the movable cover plate 141, the movable cover plate 141 automatically closes the coarse material feed back inlet 14 under the action of the torsion spring 143, when the movable cover plate 141 is pressed, the movable cover plate moves downwards to open the coarse material feed back inlet 14, the coarse material feed back inlet 14 designed above is automatically in a normally closed state to prevent cotton materials from overflowing from the place, and when the coarse material is returned and reprocessed, the coarse material can be quickly opened.

As shown in fig. 10, a screening box feed inlet 151 is arranged at the upper left end of the screening discharge box 15, a coarse material outlet pipe 154 and a fine material inlet pipe 155 are connected to the right side of the screening discharge box 15, the screening box feed inlet 151 is connected to a flange at the lower end of the crushing working chamber 12, a screening filter 152 is fixedly installed at the middle part of the inner side of the screening discharge box 15, the screening filter 152 is installed in an inclined manner, the screening filter 152 is arranged in a high-right low position, the coarse material outlet pipe 154 is connected to a low point outlet position at the right side of the screening filter 152, a blanking slope 153 is arranged at the bottom of the inner side of the screening discharge box 15, the blanking slope 153 is arranged in a high-right low position, a fine material inlet pipe 155 is connected to a low point outlet position at the right side of the blanking slope 153, crushed cotton particles fall onto the screening filter 152 from the screening box feed inlet 151, the cotton particles naturally roll down and are screened on the screening filter 152, the large particle size cotton particles are left on the screening filter 152 and roll down to the coarse material outlet pipe 154, the cotton powder particles with small particle size fall onto the blanking slope 153 from the screening filter screen 152 and roll down to the fine material inlet and outlet pipe 155 for output, the design ensures that the cotton powder particles from the fine material inlet and outlet pipe 155 are all small particle size cotton powder particles meeting the reaction requirement, the cotton powder particles with large particle size are separated and then returned for crushing, raw materials are fully utilized, the requirement of the subsequent process is also ensured, and the production cost is saved.

The cotton loosening device 2 comprises a first cotton loosening mechanism 21 and a second cotton loosening mechanism 22, the first cotton loosening mechanism 21 comprises outer sealing covers 211, rotating rollers 212 and elastic line assemblies 213, the two outer sealing covers 211 are mounted on the side wall of a cotton loosening working cavity 11 through bolts, the rotating rollers 212 are rotatably mounted on the two outer sealing covers 211, the elastic line assemblies 213 comprise spring seats 2131, springs 2132 and movable columns 2133, the two spring seats 2131 are respectively welded and fixed at the end parts of the two sides of the roller surface of the rotating rollers 212, the springs 2132 are mounted in the spring seats 2131, the movable columns 2133 are inserted in the spring seats 2131, the lower ends of the springs 2132 are connected with the spring seats 2131, the upper ends of the springs 2132 are connected with the lower ends of the movable columns 2133, elastic lines 2134 are fixedly connected between the two corresponding movable columns 2133, a plurality of the elastic line assemblies 213 are arranged on the roller surface of the rotating rollers 212, a plurality of the elastic line assemblies 213 are uniformly distributed by taking the rotating rollers 212 as the center of a circle, a plurality of the elastic line assemblies 213 are uniformly distributed on the inner side of the outer sealing covers 211, a plurality of the uniformly distributed collision blocks 2111 are arranged on the inner side of the outer sealing covers 211, the collision block 2111 is provided with a collision block inclined surface 2112, the collision block inclined surfaces 2112 are arranged facing the rotation direction of the rotating roller 212, the movable post 2133 is provided with a movable post pressing inclined surface 2135, the movable post pressing inclined surfaces 2135 are arranged facing the direction of the collision block inclined surface 2112, the rotation of the rotating roller 212 drives the rotation of the elastic wire assembly 213, the movable post of the elastic wire assembly 213 can continuously collide with the collision block 2111 arranged on the inner side of the outer cover 211 in the rotation motion, when the movable post 2133 contacts with the collision block 2111, the movable post 2133 is driven by the spring 2132 and the movable post pressing inclined surface 2135 to mutually extrude, the movable post 2133 compresses the spring 2132 into the spring seat 2131, when the movable post 2133 is separated from the collision block 2111, the spring 2132 drives the movable post 2133 to reset, in the rotation process of the rotating roller 212, the movable post 2133 is continuously pressed and reset, the up and down motion of the movable post 2133 drives the elastic wire 2134 fixed on the movable post 2133 to shake continuously, the elastic threads 2134 are preferably made of ox-tendon threads, which are firm, reliable and excellent in elasticity, the vibration of the elastic threads 2134 can loosen and scatter cotton materials passing through the positions of the elastic threads 2134, the caking phenomenon in the cotton materials is prevented to the maximum extent, the efficiency of the next crushing process is improved, a rotating shaft on one side of the rotating roller 212 extends to the outer side of the cotton loosening working cavity 11 and is provided with a rotating roller transmission belt wheel 214 in a keyed mode, the second cotton loosening mechanism 22 is consistent with the first cotton loosening mechanism 21 in structure, a cotton loosening mechanism driving assembly 23 is connected to a rotating shaft on the other side of the rotating roller 212 of the first cotton loosening mechanism 21, the cotton loosening mechanism driving assembly 23 comprises a cotton loosening driving motor 231 and a cotton loosening speed reducer 232, an output shaft of the cotton loosening driving motor 231 is connected with the cotton loosening speed reducer 232, an output end of the cotton loosening speed reducer 232 is connected with the rotating shaft of the rotating roller 212, the first cotton loosening mechanism 21 and the second cotton loosening mechanism 22 are driven by a rotating roller transmission belt wheel 214, the first cotton loosening mechanism 21 and the second cotton loosening mechanism 22 move synchronously, so that cotton materials are loosened and scattered, and are conveyed forwards continuously in the rotating process.

The cotton crushing device 3 comprises a first crushing roller 31, a second crushing roller 32, a third crushing roller 33, a fourth crushing roller 34 and a crushing roller driving assembly 39, wherein the first crushing roller 31 and the second crushing roller 32 are in a group and used for first crushing, the third crushing roller 33 and the fourth crushing roller 34 are in a group, two crushing rollers are matched with each other to operate in pairs and used for second crushing, two crushing lines are arranged to ensure the crushing quality to the maximum extent, a material guiding inclined block 35 is arranged above the first crushing roller 31 and the second crushing roller 32 and fixed on the side wall of the crushing working cavity 12, the falling position of a material is guided to the contact point position of the first crushing roller 31 and the second crushing roller 32 by the material guiding inclined block 35, a brush wheel mounting frame 36 is fixedly mounted on the side wall of the crushing working cavity 12, a cleaning brush wheel 37 is mounted on the brush wheel mounting frame 36, and the first crushing roller 31, the second crushing roller 32, the third crushing roller 33, the fourth crushing roller 34 and a crushing roller driving assembly 39, A cleaning brush wheel 37 is arranged at the lower part of the fourth crushing roller 34, the cleaning brush wheel 37 is driven to rotate by a cleaning brush wheel driving motor 371 arranged at the side wall of the crushing working cavity 12, the cleaning brush wheel 37 is in contact with the crushing roller, the cleaning brush wheel 37 is a hard brush wheel and is used for brushing cotton dust adhered to the crushing roller down and keeping the surface of the crushing roller clean, the crushing efficiency of the crushing roller is also improved, one side rotating shafts of the first crushing roller 31, the second crushing roller 32, the third crushing roller 33 and the fourth crushing roller 34 extend outwards and are connected with a crushing roller driving pulley 38 in a key connection mode, the crushing roller driving assembly 39 comprises a first crushing roller driving motor 391 and a second crushing roller driving motor 392, the output shaft of the first crushing roller driving motor 391 is connected with the rotating shaft of the third crushing roller 33, and the first crushing roller 31 and the third crushing roller 33 are driven by a crushing roller driving pulley 38, the first crushing roller 31 and the third crushing roller 33 rotate in the same direction and are synchronously driven, the output shaft of the second crushing roller driving motor 392 is connected with the rotating shaft of the fourth crushing roller 34, the second crushing roller 32 and the fourth crushing roller 34 are in belt drive through the crushing roller driving belt wheel 38, and the second crushing roller 32 and the fourth crushing roller 34 rotate in the same direction and are synchronously driven.

The rotation directions of the first crushing roller 31 and the third crushing roller 33 are opposite to the rotation directions of the second crushing roller 32 and the fourth crushing roller 34, the rotation directions of the cleaning brush wheels 37 below the first crushing roller 31, the third crushing roller 33, the second crushing roller 32 and the fourth crushing roller 34 are opposite to the rotation directions of the cleaning brush wheels, the rotation directions of the cleaning brush wheels 37 are opposite to the rotation directions of the crushing rollers, and the cleaning brush wheels can rub and clean with the crushing rollers in the opposite direction, so that the cleaning efficiency is improved, and the cleaning effect is improved.

The movable discharging component 51 comprises a movable pipe sleeve 511 and a pipe sleeve push-pull air cylinder 512, the movable pipe sleeve 511 is movably sleeved on a discharge port of the coarse material returning machine 5, the pipe sleeve push-pull air cylinders 512 are fixed at a position near the discharge port of the coarse material returning machine 5, a plurality of air cylinder push plates 513 are welded on the outer side wall of the movable pipe sleeve 511, the number of the air cylinder push plates 513 is the same as that of the pipe sleeve push-pull air cylinders 512, a piston rod of the pipe sleeve push-pull air cylinder 512 is connected with the air cylinder push plates 513, the size of the outer wall of the movable pipe sleeve 511 is matched with that of the coarse material returning inlet 14, the coarse material returning inlet 14 is in a normally closed state, so that cotton materials are prevented from overflowing from the position when the cotton crusher 1 works normally, when large-particle-diameter cotton particles screened out of the screening discharging box 15 need to be crushed again, the push-pull air cylinder 512 pushes the movable pipe sleeve 511 to move downwards, so that the movable pipe sleeve 511 extrudes downwards to open a movable cover plate 141 arranged on the coarse material returning inlet 14, the movable pipe sleeve 511 is inserted into the coarse material return inlet 14 to perform coarse material return and re-crushing, after the conveying is finished, the push-pull air cylinder 512 pulls the movable pipe sleeve 511 to recover, the movable cover plate 141 resets, and the coarse material return inlet 14 returns to a closed state again.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a crushing system of cellulose ether raw materials for production, includes cotton rubbing crusher (1), cotton feeder (4), coarse fodder returning machine (5), its characterized in that: the cotton crusher is characterized in that a cotton loosening working chamber (11), a crushing working chamber (12) and a feeding funnel (13) are arranged on the cotton crusher (1), the upper end of the cotton loosening working chamber (12) is communicated with the right side of the cotton loosening working chamber (11), the feeding funnel (13) is arranged above the left side of the cotton loosening working chamber (11), a cotton loosening device (2) is arranged on the cotton loosening working chamber (11) and used for scattering cotton materials, a cotton crushing device (3) is arranged on the crushing working chamber (12) and used for crushing the cotton materials, a coarse material return inlet (14) is arranged on the side surface of the crushing working chamber (12), the coarse material return inlet (14) is arranged above the cotton crushing device (3), a screening discharge box (15) is connected to the lower end of the crushing working chamber (12) in a flange mode and used for screening the crushed cotton materials, and a discharge port of the cotton feeder (4) is arranged right above the feeding funnel (13), the screening discharge box (15) is connected with a coarse material returning machine (5) through a pipeline, a discharge hole of the coarse material returning machine (5) is formed right above a coarse material returning inlet (14), a movable discharge assembly (51) is installed at the discharge hole of the coarse material returning machine (5), the cotton loosening device (2) comprises a first cotton loosening mechanism (21) and a second cotton loosening mechanism (22), the first cotton loosening mechanism (21) comprises an outer sealing cover (211), a rotating roller (212) and an elastic line assembly (213), the two outer sealing covers (211) are installed on the side wall of a cotton loosening working cavity (11) through bolts, the rotating roller (212) is installed on the two outer sealing covers (211) in a rotating mode, the elastic line assembly (213) comprises a spring seat (2131), a spring (2132) and a movable column (2133), the two spring seats (2131) are respectively welded and fixed to the end portions of the two sides of the roller surface of the rotating roller (212), and the spring (2132) is installed in the spring seat 2131, the movable columns (2133) are inserted into the spring seat (2131), the lower ends of the springs (2132) are connected with the spring seat (2131), the upper ends of the springs (2132) are connected with the lower ends of the movable columns (2133), elastic wires (2134) are fixedly connected between two corresponding movable columns (2133), a plurality of elastic wire assemblies (213) are arranged on the roll surface of the rotating roll (212), the elastic wire assemblies (213) are uniformly distributed by taking the circle center of the rotating roll (212) as the center, a plurality of uniformly distributed collision blocks (2111) are arranged on the inner side of the outer sealing cover (211), collision block inclined surfaces (2112) are arranged on the collision blocks (2111), the collision block inclined surfaces (2112) are arranged in the direction facing the rotating direction of the rotating roll (212), movable column pressing inclined surfaces (2135) are arranged on the movable columns (2133), and the movable column pressing inclined surfaces (2135) are arranged in the direction facing the collision block inclined surfaces (2112), the utility model discloses a cotton fluffing machine, including live-action roller (212), the one side pivot of live-action roller (212) extends to the pine cotton working chamber (11) outside and the key installs live-action roller driving pulley (214), second pine cotton mechanism (22) is unanimous with first pine cotton mechanism (21) structure, be connected with pine cotton mechanism drive assembly (23) in the opposite side pivot of live-action roller (212) of first pine cotton mechanism (21), pine cotton mechanism drive assembly (23) are including pine cotton driving motor (231), pine cotton reduction gear (232), pine cotton driving motor (231) output shaft links to each other with pine cotton reduction gear (232), pine cotton reduction gear (232) output links to each other with live-action roller (212) pivot, first pine cotton mechanism (21) and second pine cotton mechanism (22) are through live-action roller driving pulley (214) belt drive.

2. A pulverizing system of cellulose ether production raw material as defined in claim 1, wherein: coarse fodder feed back entry (14) movable mounting has removable cover (141), removable cover (141) are installed on coarse fodder feed back entry (14) top through apron fixing bolt combination (142), torsional spring (143) have been cup jointed on apron fixing bolt combination (142), torsional spring (143) one end is supported in removable cover (141) below, and the other end supports on coarse fodder feed back entry (14) inside wall, the welding of coarse fodder feed back entry (14) top has apron stopper (144) to be used for restricting the upturning highest position of removable cover (141).

3. A pulverizing system of cellulose ether production raw material as defined in claim 1, wherein: screening goes out workbin (15) left side upper end and is equipped with screening case feed inlet (151), screening goes out workbin (15) right side and is connected with coarse fodder outlet pipe (154), fine material inlet outlet pipe (155), screening case feed inlet (151) links to each other with crushing working chamber (12) lower extreme flange, screening goes out inboard middle part fixed mounting of workbin (15) and has screening filter screen (152), screening filter screen (152) slope installation, screening filter screen (152) high left right low setting, coarse fodder outlet pipe (154) are connected in screening filter screen (152) right side low point export position, screening goes out workbin (15) inboard bottom and is equipped with blanking slope (153), blanking slope (153) high left low right low, blanking slope (153) right side low point export position is connected with fine material inlet outlet pipe (155).

4. A pulverizing system of cellulose ether production raw material as defined in claim 1, wherein: the cotton crushing device (3) comprises a first crushing roller (31), a second crushing roller (32), a third crushing roller (33), a fourth crushing roller (34) and a crushing roller driving assembly (39), wherein the first crushing roller (31) and the second crushing roller (32) are in a group, the third crushing roller (33) and the fourth crushing roller (34) are in a group, two groups of rollers are matched to operate, a material guiding inclined block (35) is arranged above the first crushing roller (31) and the second crushing roller (32), the material guiding inclined block (35) is fixed on the side wall of the crushing working cavity (12), a brush wheel mounting frame (36) is fixedly arranged on the side wall of the crushing working cavity (12), a cleaning brush wheel (37) is arranged on the brush wheel mounting frame (36), and a cleaning brush wheel (37) is arranged below the first crushing roller (31), the second crushing roller (32), the third crushing roller (33) and the fourth crushing roller (34), cleaning brush wheel (37) is rotated through installing cleaning brush wheel driving motor (371) drive at crushing working chamber (12) lateral wall, one side pivot of first crushing roller (31), second crushing roller (32), third crushing roller (33), fourth crushing roller (34) all outwards extends and the key-type is connected with crushing roller driving pulley (38), crushing roller drive assembly (39) are including first crushing roller driving motor (391), second crushing roller driving motor (392), first crushing roller driving motor (391) output shaft is connected with third crushing roller (33) pivot, through crushing roller driving pulley (38) belt drive between first crushing roller (31), third crushing roller (33), second crushing roller driving motor (392) output shaft is connected with fourth crushing roller (34) pivot, second crushing roller (32) The fourth crushing roller (34) is in belt transmission through a crushing roller transmission belt wheel (38).

5. A cellulose ether production feedstock comminution system as in claim 4 wherein: the rotation directions of the first crushing roller (31) and the third crushing roller (33), the second crushing roller (32) and the fourth crushing roller (34) are opposite, and the rotation directions of the cleaning brush wheels (37) below the first crushing roller (31), the third crushing roller (33), the second crushing roller (32) and the fourth crushing roller (34) are opposite to the rotation directions of the cleaning brush wheels.

6. A pulverizing system of cellulose ether production raw material as defined in claim 1, wherein: the movable discharging assembly (51) comprises a movable pipe sleeve (511) and pipe sleeve push-pull cylinders (512), the movable pipe sleeve (511) is movably sleeved on a discharge port of the coarse material returning machine (5), the pipe sleeve push-pull cylinders (512) are fixed near the discharge port of the coarse material returning machine (5), a plurality of cylinder push plates (513) are welded on the outer side wall of the movable pipe sleeve (511), the number of the cylinder push plates (513) is the same as that of the pipe sleeve push-pull cylinders (512), a piston rod of the pipe sleeve push-pull cylinder (512) is connected with the cylinder push plates (513), and the size of the outer wall of the movable pipe sleeve (511) is matched with that of the coarse material returning inlet (14).