CN112064403B

CN112064403B - Take leftover bits recovery processing's mica production facility

Info

Publication number: CN112064403B
Application number: CN202010855113.5A
Authority: CN
Inventors: 陈舟; 钟媚霞
Original assignee: Pingjiang Huiyuan Mica Products Co ltd
Current assignee: Pingjiang Huiyuan Mica Products Co ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2022-02-15
Anticipated expiration: 2040-08-24
Also published as: CN112064403A

Abstract

The invention provides a mica production device with leftover material recovery processing, which relates to the technical field of mica papermaking, and comprises: the device comprises a vibration feeding device, a stripping and crushing device, a flexible impact pulping device, a weighing and feeding device and a secondary stirring device; vibration material feeding unit includes: the device comprises a vibrator, a feeding disc and a feeding hopper; the peeling and crushing device comprises: a drum for peeling the housing; a negative pressure cavity is arranged in the roller, and a negative pressure air suction port is arranged on the outer circle of the roller; a stripping cavity and a pressure water nozzle are arranged in the stripping shell along the tangential direction of the excircle of the roller, and a long and narrow feed inlet is arranged on the side of the stripping shell; the flexible impact pulping device comprises: an outer pulping barrel, an inner pulping filter barrel and a rotating shaft; the rotating shaft is provided with a flexible strip; the weighing and feeding device is used for weighing and feeding; the second grade agitating unit includes: the bottom of the lower layer of the stirring barrel is conveyed to the inner filtering barrel for pulping through a slag slurry pump. The aim is to obtain the slurry of high-grade mica flake and recycle and repulping the mica paper leftover material.

Description

Take leftover bits recovery processing's mica production facility

Technical Field

The invention relates to the technical field of mica papermaking, in particular to mica production equipment with leftover material recycling treatment.

Background

The mica paper is a mica product which can replace natural mica flakes to be used as an industrial electrical insulating material and is prepared by using crushed mica or mica powder as a raw material through processes of paper pulp, papermaking, molding, squeezing and the like.

The prior methods for preparing mica paper pulp comprise a calcination chemical pulping method, a hydraulic pulping method, a rubber roller crushing method and an ultrasonic crushing method, and the former two pulping methods are mostly applied. Wherein, the process flow of the hydraulic pulping method is as follows: sorting (impurity removal) of crushed mica → water sorting → hydraulic pulping → hydraulic cyclone classification → dehydration concentration.

The hydropulping step is that mica sheets are peeled into fine flakes in a special cavity by high-pressure jet water flow, and then mineral separation is carried out to separate out the mica flakes suitable for papermaking, and the hydropulping method is also called as a raw method. The natural mica paper made from the mica paper pulp prepared by the method is called raw mica paper, which is called raw paper for short.

In the process of hydraulic impact, mica is hard to collide into fine scales or fine powder for many times, the diameter-thickness ratio does not reach the standard, the grade of mica sheets is seriously reduced, and some cut leftover materials are inevitable in the processing process of mica paper, so that the part of the waste materials is necessary to be recycled in order to avoid resource waste. Therefore, there is a need for more intensive research into the existing mica pulping.

Disclosure of Invention

In view of the above, the present invention aims to provide a mica production apparatus with leftover recycling treatment, which obtains a slurry of high-grade mica flakes, and simultaneously, recycles and reuses the mica paper leftover.

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:

the invention provides mica production equipment with leftover material recycling treatment, which comprises: the device comprises a vibration feeding device, a stripping and crushing device, a flexible impact pulping device, a weighing and feeding device and a secondary stirring device;

the vibration feeding device comprises: the device comprises a vibrator, a feeding tray arranged on the vibrator, and an upper hopper positioned above one end of the feeding tray;

the peeling and crushing device comprises: the peeling device comprises a roller, a roller rotation driving mechanism and a peeling shell, wherein the roller is positioned above a feeding plate and rotates; a negative pressure cavity communicated with a negative pressure pump pipeline is arranged in the roller, and a negative pressure air suction port communicated with the negative pressure cavity is also arranged on the outer circumference of the roller; a stripping cavity and a pressure water spray head are arranged in the stripping shell along the tangential direction of the excircle of the roller, and a long and narrow feed inlet communicated with the stripping cavity is also arranged at the contact part of the stripping shell and the roller;

the flexible impact pulping device comprises: the pulping device comprises a pulping outer barrel, a pulping inner filter barrel, a rotating shaft rotating around a vertical shaft in the pulping inner filter barrel and a rotating shaft rotation driving mechanism; the rotary shaft is provided with flexible strips in a staggered manner, the stripping cavity is communicated with the upper part of the pulping inner filter barrel, and a pulp discharging port is arranged below the pulping outer barrel.

The loading attachment weighs includes: the weighing platform is a movable trolley for loading materials;

the second-stage stirring device comprises: the upper layer stirring barrel, the upper layer stirring blade, the lower layer stirring barrel and the lower layer stirring blade; a valve is arranged between the lower part of the upper-layer stirring barrel and the upper part of the lower-layer stirring barrel; the movable trolley is used for feeding the upper-layer stirring barrel, and a water spray pipe is also arranged above the upper-layer stirring barrel; the bottom of the lower-layer stirring barrel is communicated with a pipeline above the inner pulping filter barrel through a slurry pump.

Furthermore, the section of the negative pressure cavity is circular, an arc plate is fixedly arranged in the negative pressure cavity, and the arc plate is attached to the inner wall of the negative pressure cavity and used for blocking a negative pressure air suction port of an arc section of the roller rotating from the long and narrow feed port to the feed tray.

Furthermore, a gas collecting cylinder coaxial with the roller is fixedly arranged in the negative pressure cavity, the gas collecting cylinder is hollow, one end of the gas collecting cylinder penetrates through the outer part of the end face of the roller and is communicated with a negative pressure pump pipeline, and a gas collecting hole communicated with the inside is further formed in the wall of the gas collecting cylinder.

Furthermore, one end of the roller is in transmission connection with a roller motor through a belt transmission assembly, the other end of the roller is provided with a gas collecting cylinder, and a sealing element is arranged at the penetrating connection position.

Furthermore, a scraping plate in clearance fit with the outer circle of the roller is arranged above the feeding plate.

Furthermore, the bottom of the outer pulping barrel is provided with a material taking port penetrating through the inner pulping filter barrel, and the material taking port is provided with a detachable plug.

Furthermore, a vibration reduction groove is formed in the flexible strip along the length extension direction of the flexible strip.

Further, the bottom of the movable trolley is provided with a transverse wheel shaft, the weighing platform is located above the upper-layer stirring barrel, and an inverted L-shaped stop block clamped with the two ends of the wheel shaft is further arranged on the side of the weighing platform.

Further, remove hopper car upper end opening part and set up the apron, apron one end is articulated with removing the hopper car, and the other end passes through locking mechanism and is connected with removing the hopper car, locking mechanism includes: the movable hopper car is provided with a screw rod which is arranged around a horizontal shaft in a rotating way, a butterfly nut which is connected with the screw thread in a screwing way, and a cover plate and a U-shaped bayonet which is arranged to be matched with the screw rod.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the peeling and crushing device, the negative pressure air suction port on the roller sequentially feeds the tightly sucked single mica coarse sheets to the long and narrow feed inlet on the side of the peeling cavity, so that the pressure water spray head in the peeling cavity sprays high-pressure water towards the cross section of the mica coarse sheets, mica layers are separated and peeled under the action of hydraulic power, and the cross section of the mica is impacted through the hydraulic power, so that the diameter-thickness ratio of the mica sheets is ensured.

2. The flexible strip in the flexible impact pulping device flexibly impacts the dropped mica material and water, so that the large-sheet mica material is continuously crushed into small-sheet mica fine pieces meeting a certain grade, and then the small-sheet mica fine pieces are discharged from the inner filter barrel for pulping, and hard impact is reduced, so that the formation of mica fine powder which does not meet the grade requirement is reduced, and finally high-grade mica pulp is obtained, and the quality of subsequent mica papermaking is ensured.

3. The upper-layer stirring barrel in the secondary stirring device is used for weighing the mica paper leftover materials, adding water according to a certain proportion, stirring for the first time to obtain a primary liquid material, flowing into the lower-layer stirring barrel after stirring is finished, stirring for the second time to obtain a uniform liquid material, and completely separating mica fine pieces through a flexible impact pulping device after the stirring for the second time is finished so as to realize recycling and repulping; the upper-layer stirring barrel can be used for preparing for recycling leftover materials of the mica paper, the practical problem that the mica paper is large in size and needs to be conveyed in multiple batches and discontinuously is solved, the stirring and pulping are carried out simultaneously with the lower-layer stirring and pulping, and the efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 schematically illustrates a front view structural schematic of an embodiment of the present invention;

FIG. 2 is a schematic view of the invention at a point A in FIG. 1, shown enlarged partially;

FIG. 3 schematically illustrates a top view of the FIG. 2 construction of the present invention;

FIG. 4 is a schematic view of the invention at a portion B enlarged in FIG. 3;

FIG. 5 is a schematic view of the flexible strip of FIG. 1 in mounted relation to a rotating shaft according to the present invention;

FIG. 6 is a schematic cross-sectional view of the flexible strip of FIG. 1 according to the present invention;

fig. 7 is a schematic diagram showing a top view of the weighing and feeding device in fig. 1.

In the figure: 11. a vibration feeding device; 111. a vibrator; 112. a feed tray; 113. feeding a hopper; 114. a scraping plate; 12. stripping and crushing device; 121. a drum; 122. peeling the shell; 123. a negative pressure pump; 124. a negative pressure chamber; 1241. a circular arc plate; 1242. a gas collecting cylinder; 1243. a gas collection hole; 125. a negative pressure air suction port; 126. a stripping chamber; 127. a pressurized water jet; 128. a narrow feed inlet; 13. a flexible impact pulping device; 131. an outer pulping barrel; 132. pulping and filtering in a barrel; 133. a rotating shaft; 134. a flexible strip; 135. a material taking port; 136. a vibration damping tank; 21. a weighing and feeding device; 211. a weighing platform; 212. moving the trolley; 22. a second-stage stirring device; 221. an upper layer stirring barrel; 222. an upper layer stirring blade; 223. a lower layer stirring barrel; 224. a lower layer stirring blade; 225. a valve; 226. a water spray pipe; 227. a slurry pump; 228. a wheel axle; 229. an inverted L-shaped stop block; 230. a cover plate; 231. a screw; 232. a butterfly nut; 233. a U-shaped bayonet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 7, in an embodiment, the present invention provides a mica production apparatus with scrap recycling treatment, including: a vibration feeding device 11, a stripping and crushing device 12, a flexible impact pulping device 13, a weighing and feeding device 21 and a secondary stirring device 22;

the vibration feeding device 11 includes: a vibrator 111, a feeding tray 112 arranged transversely thereon, and an upper hopper 113 positioned above one end of the feeding tray 112 and used for feeding mica coarse sheets, wherein the other end of the feeding tray 112 feeds materials to the stripping and crushing device 12;

the peeling breaking device 12 includes: the rotary drum 121 is positioned above the feeding tray 112 and rotates, the rotary shaft of the rotary drum 121 is transversely arranged, and two ends of the rotary drum can be rotatably erected on the rack through bearing assemblies; a drum rotation driving mechanism for driving the drum 121 to rotate around a horizontal shaft at a constant speed, and a peeling housing 122 in contact with an outer circumferential surface of the drum 121; a negative pressure cavity 124 communicated with a pipeline of the negative pressure pump 123 is formed in the roller 121, a negative pressure suction port 125 communicated with the negative pressure cavity 124 is further formed in the outer circumference of the roller 121, and the bottom arc surface of the roller 121 is in contact with the mica coarse material in the feeding plate 112, so that the negative pressure suction port 125 can adsorb the large-sheet mica coarse material; a stripping cavity 126 and a plurality of pressure water nozzles 127 are arranged in the stripping shell 122 along the tangential direction of the excircle of the roller 121, the stripping cavity 126 can be arranged along the vertical direction, the nozzles of the pressure water nozzles 127 are downward, a plurality of pressure water nozzles are uniformly arranged along the axial direction of the roller 121 at intervals and are communicated with a water pump and a water source pipeline, and a long and narrow feed inlet 128 communicated with the stripping cavity 126 is also arranged at the contact part of the stripping shell 122 and the roller 121; an elongated feed opening 128 for sliding large pieces of mica coarse flakes into the peeling chamber 126, and a pressurized water jet 127 positioned above the elongated feed opening 128 for providing a water impact force downward;

the flexible impact pulping device 13 comprises: the pulping outer barrel 131 and the pulping inner filter barrel 132 are arranged in the pulping outer barrel 131, the aperture of a filter hole is 1.1-1.5 mm, a rotating shaft 133 and a rotating shaft rotation driving mechanism which rotate around a vertical shaft in the pulping inner filter barrel 132 can be a speed reducing motor at the upper end of the pulping outer barrel 131, the upper end of the rotating shaft 133 penetrates to the upper end of the pulping outer barrel 131, the end part of the rotating shaft 133 is in transmission connection with the output end of the speed reducing motor, and a bearing assembly and a sealing element are arranged at the penetrating position; the rotating shaft 133 is alternately provided with flexible strips 134, which may be made of plastic, the peeling cavity 126 is communicated with the upper part of the pulping inner filter barrel 132, and a pulp discharging port is arranged below the pulping outer barrel 131 for discharging mica flake (scale) pulp.

The weighing and feeding device 21 includes: a weigh platform 211, which may be a small weighbridge, mobile hopper car 212 for loading;

the secondary stirring device 22 includes: the stirring device comprises an upper-layer stirring barrel 221, an upper-layer stirring blade 222, a lower-layer stirring barrel 223 and a lower-layer stirring blade 224, wherein the upper-layer stirring blade 222 is connected with the lower-layer stirring blade 224 through a vertical transmission shaft, the lower end of the transmission shaft penetrates through the bottom of the lower-layer stirring barrel 223 and is in transmission connection with the output end of a stirring motor, and a bearing assembly and a sealing assembly are arranged at the penetrating position; a valve 225 is arranged between the lower part of the upper layer stirring barrel 221 and the upper part of the lower layer stirring barrel 223; the movable trolley 212 is used for feeding the upper-layer stirring barrel 221, a water spray pipe 226 is further arranged above the upper-layer stirring barrel 221, and a plurality of spray heads can be arranged along the periphery of the upper-layer stirring barrel 221; the bottom of the lower layer stirring barrel 223 is communicated with a pipeline above the inner pulping filter barrel 132 through a slurry pump 227.

Preferably, the cross section of the negative pressure cavity 124 is circular, an arc plate 1241 is fixedly arranged in the negative pressure cavity 124, and the arc plate 1241 is attached to the inner wall of the negative pressure cavity 124 to close the negative pressure suction port 125 of the arc section of the drum 121 from the elongated feed port 128 to the feed tray 112. When the mica coarse material sheet is adsorbed by the roller 121 and transferred to the long and narrow feed port 128, the suction force is lost due to the blocking of the negative pressure suction port 125 by the arc plate 1241, so that the mica coarse material sheet is conveniently released and can easily slide to the long and narrow feed port 128.

Preferably, a gas collecting cylinder 1242 coaxial with the roller 121 is fixedly arranged in the negative pressure cavity 124, the gas collecting cylinder 1242 is hollow, one end of the gas collecting cylinder 1242 penetrates through the outside of the end surface of the roller 121 and is communicated with a pipeline of the negative pressure pump 123, a gas collecting hole 1243 communicated with the inside is further arranged on the wall of the gas collecting cylinder 1242, and the airflow in the negative pressure cavity 124 is discharged through the gas collecting hole 1243, the inside of the gas collecting cylinder 1242 and the negative pressure pump 123. The arc plate 1241 may be mounted on the gas cylinder 1242 by a bracket.

Preferably, as shown in fig. 3-4, one end of the drum 121 is in transmission connection with a drum motor through a belt transmission assembly, the other end of the drum 121 is provided with a gas collecting cylinder 1242, an outward extending section of the gas collecting cylinder 1242 is fixed on the machine frame, and a sealing member and a bearing assembly are arranged at the through connection of the gas collecting cylinder 1242. The other end of the gas collector 1242 is coaxially mounted on the shaft head at the inner end of the drum 121 through a bearing assembly.

Preferably, as shown in fig. 2, a scraper plate 114 is also arranged above the feed tray 112 and is in clearance fit with the outer circle of the roller 121. A gap of about 3mm is reserved between the scraping plate 114 and the outer circle of the roller 121, and the gap is used for leveling through single mica coarse sheets, so that a plurality of mica sheets are prevented from being stacked in a staggered mode.

Preferably, the bottom of the outer pulping barrel 131 is provided with a material taking port 135 penetrating to the inner pulping filter barrel 132, and the material taking port 135 is provided with a detachable plug. The place is used for taking out sundries such as large lump materials and the like which are not discharged from the inner part of the pulping inner filter barrel 132 at intervals.

Preferably, as shown in fig. 6, the flexible strip 134 is provided with a vibration damping groove 136 along the length extension direction thereof. The section of the vibration reduction groove 136 can be in a drop shape, when the flexible strip 134 collides with the mica sheet, a part of impact force can be absorbed, and flexible collision is ensured, so that the grade of the mica flake is ensured.

Preferably, a transverse wheel shaft 228 is arranged at the bottom of the movable trolley 212, the weighing platform 211 is positioned above the upper-layer stirring barrel 221, and an inverted-L-shaped stop 229 clamped with two ends of the wheel shaft 228 is further arranged on the side of the weighing platform 211. When the mobile hopper car 212 overturns to pour materials into the upper-layer stirring barrel 221, the two ends of the wheel shaft 228 are clamped and limited by the inverted L-shaped stop blocks 229, and the design is more humanized.

Preferably, a cover plate 230 is disposed at an opening at the upper end of the mobile hopper car 212, one end of the cover plate 230 is hinged to the mobile hopper car 212, and the other end of the cover plate 230 is connected to the mobile hopper car 212 through a locking mechanism, where the locking mechanism includes: the screw 231 arranged on the movable trolley 212 in a rotating mode around the horizontal shaft, the butterfly nut 232 screwed in the threads are convenient for adjusting the locking height of the screw 231, and the cover plate 230 is provided with a U-shaped bayonet 233 matched with the screw 231. The cover plate 230 is provided to allow the mica scrap to be compressed when the bulk is loaded into the trolley 212, and particularly to allow for easy and quick locking by turning the screw 231.

The pulping process of the mica production equipment with leftover material recycling treatment comprises the following steps:

s1, uniformly spreading materials: a feeding hopper 113 on the feeding device 11 uniformly feeds materials to the feeding tray 112, wherein the mica coarse sheets are raw materials crushed by the crusher, the sheet diameter of the mica coarse sheets is about 2-4 cm, the thickness of the mica coarse sheets is about 2mm, and the mica coarse sheets are uniformly spread on the feeding tray 112 and are gradually fed below the roller 121 under the action of a vibrator 111;

s2, peeling the section of the mica sheet: the negative pressure air suction port 125 on the roller 121 sucks the mica coarse sheet tightly on the outer circumference of the roller 121 under the action of the negative pressure pump 123 through the negative pressure cavity 124, meanwhile, the roller 121 rotates under the action of the roller rotation driving mechanism, so that the mica coarse sheet is sent to the long and narrow feed port 128 on the peeling shell 122, the pressure water spray head 127 in the roller can spray high pressure water to the section of the mica coarse sheet, so that the layers are separated and peeled, and then the mica coarse sheet is sprayed into the inner filter vat 132 for pulping through the peeling cavity 126;

s3, pulping by flexible impact: the rotating shaft rotation driving mechanism drives the rotating shaft 133 to rotate, so that the flexible strips 134 rotate along with the rotating shaft, flexible impact is carried out on the falling mica master batch and the water, large-sheet mica materials are continuously crushed into small-sheet mica fine pieces, then the mica fine pieces flow from the pulping inner filter barrel 132 and are discharged through a pulp discharge port below the pulping outer barrel 131, and then the mica fine pieces are divided into mica slurries with different grades through a subsequent cyclone classifier;

s4, repulping mica paper leftover materials: the upper stirring blades 222 rotate in the upper stirring barrel 221, and the lower stirring blades 224 rotate in the lower stirring barrel 223; the movable trolley 212 is filled with mica paper leftover materials, the mica paper leftover materials are conveyed to the weighing platform 211 and weighed, then the weighed materials are poured into the upper-layer stirring barrel 221, the water pipe 226 is used for injecting water into the upper-layer stirring barrel 221 according to the weight of the mica paper leftover materials, the stirred slurry in the upper-layer stirring barrel 221 enters the lower-layer stirring barrel 223 through the valve 225 for secondary stirring, and after the stirring is finished, the stirred slurry is guided into the inner pulping filter barrel 132 through the slurry pump 227 and is flexibly impacted and pulped into new slurry through the step S3.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present invention have been described herein using specific examples, which are presented solely to aid in the understanding of the methods and core concepts of the invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.

Claims

1. The utility model provides a take leftover bits recovery processing's mica production facility which characterized in that includes: the device comprises a vibration feeding device (11), a stripping and crushing device (12), a flexible impact pulping device (13), a weighing and feeding device (21) and a secondary stirring device (22);

the vibration feeding device (11) comprises: the device comprises a vibrator (111), a feeding tray (112) arranged on the vibrator, and an upper hopper (113) positioned above one end of the feeding tray (112);

the peeling and crushing device (12) comprises: a roller (121) which is positioned above the feeding tray (112) and rotates, a roller rotation driving mechanism and a peeling shell (122) which is contacted with the outer circumferential surface of the roller (121); a negative pressure cavity (124) communicated with a pipeline of the negative pressure pump (123) is arranged in the roller (121), and a negative pressure suction port (125) communicated with the negative pressure cavity (124) is also arranged on the outer circumference of the roller (121); a stripping cavity (126) and a pressure water spray head (127) are arranged in the stripping shell (122) along the tangential direction of the excircle of the roller (121), the stripping cavity (126) is arranged along the vertical direction, the nozzle of the pressure water spray head (127) faces downwards, and a long and narrow feed port (128) communicated with the stripping cavity (126) is further arranged at the contact part of the stripping shell (122) and the roller (121);

the flexible impact pulping device (13) comprises: the pulping device comprises an outer pulping barrel (131), an inner pulping filter barrel (132), a rotating shaft (133) which rotates around a vertical shaft in the inner pulping filter barrel (132), and a rotating shaft rotation driving mechanism; flexible strips (134) are arranged on the rotating shaft (133) in a staggered manner, the stripping cavity (126) is communicated with the upper part of the pulping inner filter barrel (132), and a pulp discharging port is arranged below the pulping outer barrel (131);

the weighing and feeding device (21) comprises: a weighing platform (211), a mobile hopper car (212) for loading;

the secondary stirring device (22) comprises: an upper layer stirring barrel (221), an upper layer stirring blade (222), a lower layer stirring barrel (223) and a lower layer stirring blade (224); a valve (225) is arranged between the lower part of the upper layer stirring barrel (221) and the upper part of the lower layer stirring barrel (223); the movable trolley (212) is used for feeding the upper-layer stirring barrel (221), and a water spray pipe (226) is arranged above the upper-layer stirring barrel (221); the bottom of the lower layer stirring barrel (223) is communicated with a pipeline above the inner pulping filter barrel (132) through a slurry pump (227).

2. The mica production equipment according to claim 1, characterized in that the cross section of the negative pressure cavity (124) is circular, a circular arc plate (1241) is fixedly arranged in the negative pressure cavity (124), and the circular arc plate (1241) is attached to the inner wall of the negative pressure cavity (124) and used for blocking a negative pressure suction port (125) of a circular arc section of the roller (121) which is rotated from the long and narrow feed port (128) to the feed tray (112).

3. The mica production device according to claim 1, wherein a gas collecting cylinder (1242) coaxial with the roller (121) is fixedly arranged in the negative pressure cavity (124), the gas collecting cylinder (1242) is hollow, one end of the gas collecting cylinder (1242) penetrates through the outside of the end surface of the roller (121) and is communicated with a pipeline of the negative pressure pump (123), and a gas collecting hole (1243) communicated with the inside is further formed in the wall of the gas collecting cylinder (1242).

4. The mica production equipment as claimed in claim 3, wherein one end of the roller (121) is in transmission connection with a roller motor through a belt transmission assembly, the other end of the roller (121) is provided with a gas collecting cylinder (1242), and a sealing member is arranged at the through connection position.

5. Mica production equipment as claimed in claim 1, characterized in that a scraper plate (114) which is in clearance fit with the outer circle of the roller (121) is arranged above the feeding plate (112).

6. The mica production equipment as claimed in claim 1, wherein a material taking port (135) penetrating to the inner pulping filter barrel (132) is arranged at the bottom of the outer pulping barrel (131), and a detachable plug is arranged at the material taking port (135).

7. Mica production equipment as claimed in claim 1, characterized in that said flexible strip (134) is provided with a vibration-damping groove (136) along its length extension.

8. The mica production facility according to claim 1, wherein a transverse wheel shaft (228) is arranged at the bottom of the mobile hopper car (212), the weighing platform (211) is positioned above the upper layer stirring barrel (221), and an inverted L-shaped stop block (229) clamped with two ends of the wheel shaft (228) is arranged at the side of the weighing platform (211).

9. The mica production facility of claim 1, wherein a cover plate (230) is arranged at the opening of the upper end of the movable trolley (212), one end of the cover plate (230) is hinged with the movable trolley (212), and the other end of the cover plate is connected with the movable trolley (212) through a locking mechanism, and the locking mechanism comprises: the movable trolley (212) is provided with a screw rod (231) which is arranged around a horizontal shaft in a rotating mode, a butterfly nut (232) which is connected with the screw threads in a screwing mode, and a cover plate (230) which is provided with a U-shaped bayonet (233) matched with the screw rod (231).