CN118719277A

CN118719277A - A kind of ultra-fine grinding and classifying machine for quartz sand

Info

Publication number: CN118719277A
Application number: CN202410712301.0A
Authority: CN
Inventors: 王建
Original assignee: Jiangsu Koroz Silicon Industry Co ltd
Current assignee: Jiangsu Koroz Silicon Industry Co ltd
Priority date: 2024-06-04
Filing date: 2024-06-04
Publication date: 2024-10-01

Abstract

The present invention discloses a quartz sand ultrafine grinding and classifying machine, which relates to the field of quartz sand crushing technology, and includes: a device body, which is used for ultrafine grinding of quartz sand; a buffer cylinder, which is located on the inner side of the device body and movably connected with the device body; a rotating assembly, which is located on the inner side of the buffer cylinder and movably connected with the buffer cylinder and the device body; an inner cylinder, which is located on the inner side of the rotating assembly; and a multi-stage crushing assembly, which is located inside the device body. In the present invention, since the first driving gear is meshed and connected with the first outer gear ring, and the second driving gear is meshed and connected with the second outer gear ring, the buffer cylinder and the rotating cylinder rotate accordingly, so that the rotating rotating cylinder can buffer and slowly drop the materials passing through it, thus avoiding the resistance effect of a large amount of materials falling on the crushing, and at the same time, a small amount of multiple crushing can ensure the fineness of the crushing, reduce the crushing area of the materials at the same time, and shorten the crushing time and the force required for crushing.

Description

Be used for superfine grinding grader of quartz sand

Technical Field

The invention relates to the technical field of quartz sand crushing, in particular to a superfine quartz sand crushing classifier.

Background

Quartz sand is a quartz particle formed by crushing quartz stone, the quartz stone is a nonmetallic mineral, the main mineral component is silicon dioxide (SiO 2), the quartz stone is expressed as silicate mineral, the color of the quartz sand is usually milky white, colorless or gray, the hardness is 7, the quartz sand is brittle and has no cleavage, shell-shaped fracture and grease luster, the density is about 2.65 g/cc, the quartz sand has the characteristics of hardness, wear resistance and stable chemical property, and is widely applied to industries such as glass manufacturing, casting, ceramics, fireproof materials, smelting ferrosilicon, metallurgical fluxes, buildings, chemical industry, plastics, rubber, abrasive materials, filter materials and the like, and in addition, the high-purity quartz sand is also applied to the fields of high-end manufacturing such as semiconductor, chip manufacturing and the like, and in order to obtain quartz sand grains with proper size, superfine grinding is needed.

In order to avoid the problem of productivity reduction caused by replacement of the screening wheel or adjustment of the gap at the stop, there has been proposed a classifier for ultrafine grinding of quartz sand (see patent No.: 202311800556.4) comprises a jet mill, wherein the output end of the jet mill is provided with a classifying bin, the inner wall of the classifying bin is rotatably provided with a wheel seat, and the screening wheel formed by the wheel seat, the wheel sheet and the wheel hub is driven to drive the adjusting tool to operate according to production requirements in the process of screening quartz sand, so that the adjusting tool drives the wheel to move towards the wheel hub, and the wheel drives the special-shaped screw to move towards the wheel sheet, so that the wheel sheet is rotated, the angle between the wheel sheets is adjusted in real time, and the purpose of adjusting gaps between the wheel sheets to meet the requirement of adjusting the size of the screened quartz sand in the production process is achieved.

However, in the conventional crushing classifier, the crushed materials and the materials with larger particles pass through the same group of crushing rollers in the same space to be crushed, so that the crushing classifier is easily affected by the crushed materials in the process of crushing the larger particles, the crushing area of the materials is increased, the crushing time and the required crushing force are increased, the crushing efficiency is relatively poor, and the utilization rate is reduced.

Disclosure of Invention

The invention aims at: in order to solve the problem that the crushing efficiency is poor and the use rate is reduced due to the fact that the crushing area of the materials is increased and the crushing time and the required force are increased simultaneously when the crushing operation of the traditional crushing classifier is carried out on the materials with larger particles in the same space through the crushing operation of the crushing roller set, so that the crushing operation of the materials with larger particles is easily influenced by the materials with the smaller particles in the crushing process, and the superfine quartz sand crushing classifier is provided.

In order to achieve the above purpose, the present invention provides the following technical solutions: a superfine grinding classifier for quartz sand, comprising:

the device main body is used for carrying out superfine grinding on quartz sand;

the buffer cylinder is positioned at the inner side of the device main body and is movably connected with the device main body;

the rotating assembly is positioned on the inner side of the buffer cylinder and is movably connected with the buffer cylinder and the device main body;

an inner cylinder positioned at the inner side of the rotating assembly;

A multistage crushing assembly located inside the apparatus body;

The device comprises a device body, the urceolus includes the urceolus, four corners department of urceolus bottom all is provided with the supporting leg, and one of them a set of driving motor is installed to one side of supporting leg, the bottom rotation of urceolus one side is connected with the dwang, the outside of dwang has set gradually first drive gear and second drive gear from the right side to the left side, the outside one side of a buffer tube is provided with the first external tooth ring of first drive gear assorted, evenly be provided with the multiunit on the inner wall of a buffer tube and extend to its outside sieve mesh, the rotation subassembly includes the outside that one side of rotary drum outside extends to a buffer tube and is provided with the second external tooth ring, evenly be provided with the multiunit on the inner wall of rotary drum and extend to its outside filtration pore, multistage crushing subassembly includes driving motor, first crushing roller, second crushing roller and third crushing roller, the figure of first crushing roller and third crushing roller all is two sets, the outside of first crushing roller evenly is provided with multiunit spiral crushing blade, the outside one side of first crushing roller outside just is provided with the outside gear that the urceolus just is located outside one side of a buffer tube and is provided with the outside, two adjacent sets of two outside and two sets of outside are connected with outside the outside gear, two sets are connected with outside two outside the roller.

As still further aspects of the invention: the top and the bottom of rotary drum one side and the top and the bottom of buffer tube one side all are provided with spacing slider, the inside one side of urceolus evenly is provided with multiunit and spacing slider assorted annular spacing groove, rotary drum and buffer tube all pass through spacing slider and annular spacing groove's mutually supporting and urceolus sliding connection.

As still further aspects of the invention: the top of inner tube one side is provided with the feeder hopper, the inside bottom of inner tube is provided with the discharge opening, two sets of first crushing roller is located two sets of the top of second crushing roller and all be located the inside below position department of inner tube, two sets of first crushing roller and second crushing roller all rotate with the inner tube and are connected, one side that driving motor was kept away from to the inner tube all is provided with the support, the both sides of urceolus one side and rotary drum all are provided with the through-hole, the inner tube passes through the through-hole and rotates with urceolus and rotary drum respectively and be connected.

As still further aspects of the invention: one side of the outside of dwang is kept away from first drive gear, driving motor's output, one of them a set of outside one side of first crushing roller, one of them a set of outside one side of second crushing roller and one of them a set of outside one side of third crushing roller all is provided with the sprocket, wherein two sets of sprocket and remaining four sets of the outside of sprocket all overlaps and is equipped with the chain belt.

As still further aspects of the invention: one side of the outer cylinder is provided with a rotating hole, the other side of the outer cylinder is provided with a movable hole, and one side of the buffer cylinder extends to one side of the outer cylinder through the movable hole and is connected with the outer cylinder in a rotating mode.

As still further aspects of the invention: the two groups of third crushing rollers are positioned at the bottom end of the inside of the buffer cylinder and below the rotating cylinder.

As still further aspects of the invention: one side of the rotating rod is provided with a bearing seat, and the rotating rod is in rotary connection with the outer cylinder through the mutual matching of the bearing seat and the bearing.

As still further aspects of the invention: the buffer cylinder is in meshed connection with the outer cylinder through the mutual matching of the first driving gear and the first outer toothed ring.

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

1. Through the device main part, the buffer cylinder, inner tube and multistage crushing subassembly that sets up, during the use, see the inside of leading-in inner tube of material through the feeder hopper on the inner tube just leading to first crushing roller, simultaneously the output of driving motor rotates under the electric power effect, and carry corresponding sprocket rotation, then carry one of them first crushing roller simultaneously under the effect of chain belt, second crushing roller and the sprocket rotation on the third crushing roller, because two adjacent sets of first gears and two adjacent sets of second gears meshing connection, thereby can drive multiunit first crushing roller simultaneously, second crushing roller and third crushing roller rotate simultaneously, thereby can utilize first crushing roller to carry out the breakage to the material that passes through, the material after the breakage drops directly to the top of second crushing roller, and utilize the second crushing roller to smash it, then the inside of leading-out hole, the material after smashing is led out through the filtration pore on the rotary drum, and is led out on the inside third crushing roller and is smashed by it again, then the sieve pore on the buffer cylinder leads to the inside of urceolus, then the inside of going through the sieve pore on the outer tube, then the fine and smooth material of smashing process has been carried out to the fine and smooth in the grinding process of the material after the three is more influenced by the roller, thereby the fine and smooth crushing process is realized to the material after the crushing is more in the grinding roller is exported to the drum;

2. Through the device main body and the buffer drum, during the use, the output end of the driving motor rotates under the action of electric power and directly drives the rotating rod to rotate under the cooperation of the chain wheel and the chain belt, so that the first driving gear and the second driving gear outside the buffer drum rotate simultaneously, and then the first driving gear is meshed with the first external gear ring outside the buffer drum, and the second driving gear is meshed with the second external gear ring outside the buffer drum, so that the buffer drum and the rotary drum rotate, the rotating rotary drum can buffer materials and slowly drop the materials passing through the buffer drum, and the dropped materials slowly pass through the third crushing roller to perform the crushing operation, the influence of a large amount of material drop on the crushing resistance is avoided, the service life of the third crushing roller can be prolonged to a certain extent, the crushing fineness of the materials can be ensured by a small amount and multiple times, the crushing area of the materials at the same time is reduced, the crushing time and the required force of the crushing are shortened, the crushing efficiency is better, and the use ratio is improved;

3. through the buffer cylinder that sets up, utilize the buffer cylinder in the rotation to rotate the buffering to the material of process to avoided the material to block up, enable simultaneously again that the splash scope of smashing in-process material is littleer, play and separate and guarantee its normal unloading when acting on again.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a partial perspective view of the present invention;

FIG. 3 is a schematic view of a buffer cartridge according to the present invention;

FIG. 4 is a schematic view of a partial structure of the present invention;

fig. 5 is an enlarged view of a of fig. 1 according to the present invention.

In the figure: 1. a device body; 101. an outer cylinder; 102. support legs; 103. a driving motor; 104. a rotating lever; 105. a first drive gear; 106. a second drive gear; 2. a buffer tube; 201. a first outer toothed ring; 3. a rotating assembly; 301. a rotating drum; 302. a second outer toothed ring; 303. filtering holes; 304. a limit sliding block; 4. an inner cylinder; 5. a multi-stage pulverizing assembly; 501. a drive motor; 502. a sprocket; 503. a first pulverizing roller; 504. a first gear; 505. a second pulverizing roller; 506. a third pulverizing roller; 507. and a second gear.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "configured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Hereinafter, an embodiment of the present invention will be described in accordance with its entire structure.

Referring to fig. 1 to 5, in an embodiment of the present invention, a superfine grinding classifier for quartz sand includes:

A device main body 1 for ultrafine grinding of quartz sand;

The buffer cylinder 2 is positioned on the inner side of the device main body 1 and is movably connected with the device main body 1;

the rotating component 3 is positioned on the inner side of the buffer cylinder 2 and is movably connected with the buffer cylinder 2 and the device main body 1;

An inner cylinder 4 located inside the rotating assembly 3;

A multistage grinding module 5 located inside the apparatus main body 1;

The device body 1 comprises an outer cylinder 101, supporting legs 102 are arranged at four corners of the bottom of the outer cylinder 101, a driving motor 103 is arranged on one side of one group of supporting legs 102, a rotating rod 104 is connected to the bottom end of one side of the outer cylinder 101 in a rotating mode, a first driving gear 105 and a second driving gear 106 are sequentially arranged on the outer side of the rotating rod 104 from right to left, a first outer toothed ring 201 matched with the first driving gear 105 is arranged on one side of the outer side of the buffer cylinder 2, a plurality of groups of sieve holes extending to the outer side of the buffer cylinder 2 are uniformly arranged on the inner wall of the buffer cylinder 2, a plurality of groups of filter holes 303 extending to the outer side of the buffer cylinder 301 are uniformly arranged on the inner wall of the rotary cylinder 301, a driving motor 501, a first crushing roller 503, a second crushing roller 505 and a third crushing roller 506 are sequentially arranged on the outer side of the rotating rod 104, a plurality of groups of spiral crushing blades are uniformly arranged on the outer side of the first crushing roller 503, a plurality of groups of spiral crushing rollers 503 are uniformly arranged on one side of the outer side of the buffer cylinder 2, a plurality of groups of outer crushing rollers 504 are arranged on the outer side of the first crushing roller 503 and are arranged on the outer side of the buffer cylinder 101, a plurality of the second outer roller is meshed with the second outer roller 101, a plurality of the second outer roller groups are connected to the second outer roller groups are arranged on the outer side of the outer roller 101, two adjacent outer roller groups are meshed with each other, and the outer roller groups are meshed with each outer roller 101.

Referring to fig. 1,2 and 3, the top and the bottom of one side of the rotary drum 301 and the top and the bottom of one side of the buffer drum 2 are respectively provided with a limit slide block 304, one side of the inner part of the outer drum 101 is uniformly provided with a plurality of groups of annular limit grooves matched with the limit slide blocks 304, the rotary drum 301 and the buffer drum 2 are slidably connected with the outer drum 101 through the mutual matching of the limit slide blocks 304 and the annular limit grooves, and the mutual matching of the limit slide blocks 304 and the annular limit grooves is utilized to facilitate the limit support of the rotary drum 301 and the buffer drum 2 and simultaneously enable the buffer drum 2 to rotate under stress.

Referring to fig. 1, 2 and 4, a feeding hopper is disposed at the top of one side of the inner cylinder 4, a discharging hole is disposed at the bottom of the inner cylinder 4, two groups of first crushing rollers 503 are disposed at the top of two groups of second crushing rollers 505 and are disposed at the lower position of the inner cylinder 4, the two groups of first crushing rollers 503 and the second crushing rollers 505 are rotatably connected with the inner cylinder 4, a bracket is disposed at one side of the inner cylinder 4 away from the driving motor 501, through holes are disposed at one side of the outer cylinder 101 and at two sides of the rotary cylinder 301, and the inner cylinder 4 is rotatably connected with the outer cylinder 101 and the rotary cylinder 301 respectively through the through holes.

Referring to fig. 1, 2, 4 and 5, a side of the outer portion of the rotating rod 104 away from the first driving gear 105, an output end of the driving motor 103, an output end of the driving motor 501, a side of the outer portion of one set of first pulverizing rollers 503, a side of the outer portion of one set of second pulverizing rollers 505, and a side of the outer portion of one set of third pulverizing rollers 506 are all provided with chain wheels 502, and the outer sides of two sets of chain wheels 502 and the remaining four sets of chain wheels 502 are all sleeved with chain belts.

Referring to fig. 1 and 5, a rotating hole is provided on one side of the outer cylinder 101, a moving hole is provided on the other side of the outer cylinder 101, and one side of the buffer cylinder 2 extends to one side of the outer cylinder 101 through the moving hole and is rotationally connected with the outer cylinder 101, so that a sufficient moving space is provided for the rotation of the buffer cylinder 2.

Referring to fig. 1,2,4 and 5, two sets of third pulverizing rollers 506 are located at the bottom end of the inside of the buffer drum 2 and below the drum 301.

Referring to fig. 1 and 2, a bearing seat is disposed on one side of the rotating rod 104, the rotating rod 104 is rotationally connected with the outer cylinder 101 through the mutual cooperation of the bearing seat and the bearing, and the rotating rod 104 is rotationally connected with the outer cylinder 101 by utilizing the mutual cooperation of the bearing seat and the bearing, so that the rotation is more labor-saving.

Referring to fig. 1 and 2 with emphasis, the damper cylinder 2 is engaged with the outer cylinder 101 by the first driving gear 105 and the first outer ring gear 201 cooperating with each other.

The working principle of the invention is as follows: when in use, materials are guided into the inner cylinder 4 through the feed hopper on the inner cylinder 4 and just guided to the first crushing roller 503, meanwhile, the output end of the driving motor 501 rotates under the action of electric power and carries the corresponding chain wheel 502 to rotate, then, one group of the first crushing roller 503, the second crushing roller 505 and the third crushing roller 506 are simultaneously carried under the action of the chain belt to rotate through the chain wheel 502 on the chain belt, and as the two adjacent groups of the first gears 504 and the two adjacent groups of the second gears 507 are in meshed connection, the first crushing roller 503, the second crushing roller 505 and the third crushing roller 506 can be simultaneously driven to rotate, so that the materials which pass through can be crushed by the first crushing roller 503, the crushed materials directly fall to the top of the second crushing roller 505 and are crushed by the second crushing roller 505, and then are guided into the inner part of the rotary cylinder 301 through the discharging hole, the crushed materials are led out through the filtering holes 303 on the rotary drum 3 and are led to the third crushing roller 506 in the buffer drum 2 and crushed and ground again by the third crushing roller, then are led into the outer drum 101 through the sieve holes on the buffer drum 2 and are led out through the discharging pipes on the outer drum 101 uniformly, so that the materials crushed by the three groups of crushing rollers 506 are finer, the multi-stage crushing is realized, the influence of the crushed materials on the larger particles is less in the crushing process, the output end of the driving motor 103 rotates under the action of electric power in the crushing process, the rotating rod 104 is directly driven to rotate under the cooperation of the chain wheel 502 and the chain belt, the first driving gear 105 and the second driving gear 106 outside the rotating rod rotate simultaneously, and then the first driving gear 105 is meshed and connected with the first external toothed ring 201 outside the buffer drum 2, the second driving gear 106 is meshed with the second outer toothed ring 302 outside the rotary drum 301, so that the buffer drum 2 and the rotary drum 301 can rotate, the rotary drum 301 in rotation can buffer materials while the rotary drum 301 in rotation is in use, the materials passing through the rotary drum can slowly fall off, the falling materials can slowly pass through the third crushing roller 506 to perform crushing operation, the influence of a large amount of falling materials on the resistance generated by crushing is avoided, the service life of the third crushing roller 506 can be prolonged to a certain extent, meanwhile, the crushing fineness can be ensured by a small amount of crushing for multiple times, the crushing area of the materials at the same time is reduced, the crushing time and the required crushing force are shortened, the crushing efficiency is improved, the use ratio is improved, the materials passing through the rotary buffer drum 2 are buffered in rotation, the blockage of the materials is avoided, the splashing range of the materials in the crushing process is smaller, the function of separating time is achieved, and the normal blanking of the materials is ensured.

The foregoing description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical solution of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims

1. A classifier for superfine grinding of quartz sand, characterized by comprising:

the device comprises a device main body (1) for carrying out superfine grinding on quartz sand;

The buffer cylinder (2) is positioned at the inner side of the device main body (1) and is movably connected with the device main body (1);

The rotating assembly (3) is positioned at the inner side of the buffer cylinder (2) and is movably connected with the buffer cylinder (2) and the device main body (1);

An inner cylinder (4) positioned at the inner side of the rotating component (3);

a multistage crushing assembly (5) positioned inside the device main body (1);

The device body (1) comprises an outer cylinder (101), supporting legs (102) are arranged at four corners of the bottom of the outer cylinder (101), a driving motor (103) is arranged on one side of one group of supporting legs (102), a rotating rod (104) is rotatably connected to the bottom end of one side of the outer cylinder (101), a first driving gear (105) and a second driving gear (106) are sequentially arranged on the outer side of the rotating rod (104) from right to left, a first outer toothed ring (201) matched with the first driving gear (105) is arranged on one side of the outer part of the buffer cylinder (2), a plurality of groups of sieve holes extending to the outer part of the buffer cylinder are uniformly formed in the inner wall of the buffer cylinder (2), a plurality of groups of filter holes (303) extending to the outer part of the buffer cylinder are uniformly formed in the inner wall of the rotating cylinder (301), a multistage crushing assembly (5) comprises a driving motor (501), a first crushing roller (503), a second crushing roller (506) and a third crushing roller (506) and a plurality of crushing roller (503) are uniformly arranged on the inner wall of the buffer cylinder (301), the first crushing roller (503) and the second crushing roller (503) are uniformly arranged on the outer part of the roller (503), the grinding device is characterized in that one side of the outer part of the first grinding roller (503) is provided with a first gear (504) which is positioned outside the outer cylinder (101), one side of the outer part of the second grinding roller (505) and the outer part of the third grinding roller (506) is provided with a second gear (507) which is positioned outside the outer cylinder (101), two groups of the first gears (504) are connected in a meshed mode, and two adjacent groups of the second gears (507) are connected in a meshed mode.

2. The superfine grinding classifier for quartz sand according to claim 1, wherein the top and the bottom of one side of the rotary drum (301) and the top and the bottom of one side of the buffer drum (2) are respectively provided with a limit slide block (304), one side of the inside of the outer drum (101) is uniformly provided with a plurality of groups of annular limit grooves matched with the limit slide blocks (304), and the rotary drum (301) and the buffer drum (2) are respectively connected with the outer drum (101) in a sliding manner through the mutual matching of the limit slide blocks (304) and the annular limit grooves.

3. The superfine grinding classifier for quartz sand according to claim 1, wherein a feed hopper is arranged at the top of one side of the inner cylinder (4), a discharge hole is arranged at the bottom end of the inner cylinder (4), two groups of first grinding rollers (503) are arranged at the top of two groups of second grinding rollers (505) and are all arranged at the lower position of the inner cylinder (4), the two groups of first grinding rollers (503) and the second grinding rollers (505) are both rotationally connected with the inner cylinder (4), a bracket is arranged at one side of the inner cylinder (4) far away from the driving motor (501), through holes are arranged at one side of the outer cylinder (101) and at two sides of the rotary cylinder (301), and the inner cylinder (4) is rotationally connected with the outer cylinder (101) and the rotary cylinder (301) respectively through the through holes.

4. The superfine grinding classifier for quartz sand according to claim 1, wherein the outer part of the rotating rod (104) is far away from one side of the first driving gear (105), the output end of the driving motor (103), the output end of the driving motor (501), one side of the outer part of one group of the first grinding rollers (503), one side of the outer part of one group of the second grinding rollers (505) and one side of the outer part of one group of the third grinding rollers (506) are all provided with chain wheels (502), and the outer sides of two groups of the chain wheels (502) and the remaining four groups of the chain wheels (502) are all sleeved with chain belts.

5. The superfine grinding classifier for quartz sand according to claim 1, wherein one side of the outer cylinder (101) is provided with a rotating hole, the other side of the outer cylinder (101) is provided with a movable hole, and one side of the buffer cylinder (2) extends to one side of the outer cylinder (101) through the movable hole and is rotationally connected with the outer cylinder (101).

6. A classifier for ultra-fine grinding of quartz sand according to claim 1, characterized in that two sets of said third grinding rolls (506) are located at the bottom end of the inside of the buffer drum (2) and below the drum (301).

7. The superfine grinding classifier for quartz sand according to claim 1, wherein a bearing seat is arranged on one side of the rotating rod (104), and the rotating rod (104) is rotatably connected with the outer cylinder (101) through the mutual matching of the bearing seat and the bearing.

8. The superfine grinding classifier for quartz sand according to claim 1, wherein the buffer tube (2) is engaged with the outer tube (101) through the mutual cooperation of the first driving gear (105) and the first outer toothed ring (201).