CN220091492U

CN220091492U - Circulating type efficient pulverizer

Info

Publication number: CN220091492U
Application number: CN202321644608.9U
Authority: CN
Inventors: 晁庆华; 封来兴; 封雅娣
Original assignee: Hangzhou Jutao Biochemical Tech Co ltd
Current assignee: Hangzhou Jutao Biochemical Tech Co ltd
Priority date: 2023-06-26
Filing date: 2023-06-26
Publication date: 2023-11-28
Anticipated expiration: 2033-06-26

Abstract

The utility model discloses a circulating type efficient pulverizer, which relates to the technical field of pulverizing machines and comprises a shell and a grinding roller, wherein a separating cylinder is fixedly welded at the top end of the shell, a centrifugal cylinder is arranged below the shell, a grinding cylinder is fixedly arranged between the centrifugal cylinder and the bottom end of the shell, a return pipe is fixedly connected between the centrifugal cylinder and the separating cylinder, wherein a grinding assembly is arranged in the grinding cylinder, a driving motor is fixedly arranged at the bottom of the centrifugal cylinder, a central shaft is fixedly arranged at an output shaft of the driving motor, the top end of the central shaft penetrates through the centrifugal cylinder and is in transmission connection with the grinding assembly, a plurality of centrifugal blades are fixedly arranged at the part of the central shaft, which is positioned in the centrifugal cylinder, a driving gear is meshed with a driven gear for transmission, the driven gear is meshed with an inner gear ring and the grinding roller for autorotation, and as a gap between the grinding roller and the grinding cylinder is gradually reduced from top to bottom, powder is extruded and pulverized by grinding bulges in the process of gradually descending under the action of gravity.

Description

Circulating type efficient pulverizer

Technical Field

The utility model relates to the technical field of flour mills, in particular to a circulating type efficient flour mill.

Background

The pulverizer is widely applied to grinding processing of mineral product materials in the fields of metallurgy, building materials, chemical industry, mines and the like, can be divided into six pulverizer types of high-pressure suspension roller pulverizer, high-pressure micro powder pulverizer, straight-through centrifugal pulverizer, overpressure trapezoid pulverizer and three-ring medium-speed pulverizer according to the fineness of the ground materials and the fineness of discharged materials, and comprises the following pulverizing processes: after the materials are crushed to the required granularity, the materials are sent to a storage hopper by a lifter, and then are evenly and continuously sent into a grinding chamber by a vibration feeder, so that the crushing purpose is achieved due to the rolling of a grinding roller;

chinese patent publication No. CN218250418U discloses a milling machine, it can also drive outside screw blade low-speed rotation when driving the high-speed rotation of grinding table through the motor, make the speed of feed and the speed assorted of grinding, prevent the transition feed, however, powder in the above-mentioned technique is difficult to the shaping of once crocus, remain big pellet easily in the powder of collection, serious influence crocus fashioned quality, still need complicated screening, sorting process, increased production burden, increased processing cost, for this the utility model provides a circulating high-efficient milling machine is used for solving above-mentioned problem.

Disclosure of Invention

The utility model provides a circulating type efficient pulverizer, which solves the technical problems that powder in the traditional pulverizer is difficult to pulverize and form once, massive granules are easy to remain, the quality of pulverizing and forming is seriously influenced, complicated sieving and sorting procedures are still needed, the production burden is increased, and the processing cost is increased.

In order to solve the technical problems, the circulating type efficient pulverizer comprises a shell and a grinding roller, wherein a separating cylinder is fixedly welded at the top end of the shell, a centrifugal cylinder is arranged below the shell, the grinding cylinder is fixedly arranged between the centrifugal cylinder and the bottom end of the shell, a return pipe is fixedly connected between the centrifugal cylinder and the separating cylinder, a grinding assembly is arranged in the grinding cylinder, a driving motor is fixedly arranged at the bottom of the centrifugal cylinder, a central shaft is fixedly arranged at an output shaft of the driving motor, the top end of the central shaft penetrates through the centrifugal cylinder and is in transmission connection with the grinding assembly, and a plurality of centrifugal fan blades are fixedly arranged on the part of the central shaft, which is positioned in the centrifugal cylinder.

Preferably, the grinding component comprises a tripod fixed at the bottom port of the grinding cylinder, a connecting shaft is rotationally embedded in the center of the tripod, the bottom end of the connecting shaft is fixed with a central shaft, a transmission cavity is arranged in the grinding roller, the top end of the connecting shaft extends to be rotationally connected with the transmission cavity, a driving gear is fixed on the part, located in the transmission cavity, of the connecting shaft, an inner gear ring is arranged on the inner wall of the transmission cavity, a driven gear is connected between the driving gear ring and the inner gear ring in a meshed mode, and a rotating shaft of the driven gear is rotationally connected with the inner wall of the transmission cavity.

The circulating type efficient pulverizer as claimed in, wherein: the grinding cylinder is funnel type structure setting, the structural design of the bottom adaptation grinding cylinder of grinding roller, clearance between grinding roller and the grinding cylinder diminishes from last to lower gradually, all densely covered has the grinding arch on grinding roller and the adjacent side of grinding cylinder, just the top of grinding roller is provided with toper portion.

Preferably, an air inlet pipe is fixed on one side of the centrifugal cylinder, the bottom ends of the air inlet pipe and the return pipe are tangential to the inner wall of the centrifugal cylinder, and the air inlet pipe and the return pipe are connected on the same side of the centrifugal cylinder.

Preferably, the top end of the return pipe is tangential to the outer wall of the separating cylinder, an exhaust pipe is fixedly embedded in the top end face of the separating cylinder, a column casing which is gradually narrowed from top to bottom is fixed at the bottom end of the separating cylinder, and the bottom end of the column casing is communicated with the shell.

Preferably, the side wall of the shell is fixed with a feed hopper, the bottom of the feed hopper is provided with a wind locking cavity, the outer wall of the wind locking cavity is fixed with a feeding motor, the output end of the feeding motor extends to the wind locking cavity and is fixedly provided with a plurality of stirring plates, the bottom of the shell is fixedly provided with four support columns, four reinforcing plates are fixed between the support columns, and the four support columns are all fixed with the outer wall of the centrifugal cylinder.

Compared with the related art, the circulating type efficient pulverizer provided by the utility model has the following advantages that

The beneficial effects are that:

according to the circulating efficient pulverizer disclosed by the utility model, the connecting shaft drives the driving gear to be meshed with the driven gear for transmission, the driven gear is meshed with the inner gear ring and the grinding roller to rotate, the gap between the grinding roller and the grinding cylinder is gradually reduced from top to bottom, under the action of gravity, powder is extruded and crushed by the grinding protrusions in the gradual descending process, the particle size of the powder is gradually reduced, and the grinding effect is good;

the utility model relates to a circulating type efficient pulverizer, wherein centrifugal fan blades compress air entering from an air inlet pipe and then discharge the compressed air into a return pipe together with powder, compressed air containing the powder enters into a separating cylinder to form a cyclone, the powder with heavier mass can spirally descend along the inner walls of the separating cylinder and a column casing under the centrifugal action of the cyclone, the powder can be secondarily ground, and the powder with lighter mass can be discharged into a bag-type dust remover together with the air from an exhaust pipe, so that the powder particles collected by the bag-type dust remover are distinct and uniform in quality.

Drawings

FIG. 1 is an external view of a circulating type efficient pulverizer of the present utility model;

FIG. 2 is a side cross-sectional view of a circulating high efficiency pulverizer of the present utility model;

FIG. 3 is a sectional view of the circulating type efficient pulverizer of the present utility model, taken along the direction A-A in FIG. 2.

Reference numerals in the drawings: 1. a housing; 11. a feed hopper; 12. a feed motor; 13. a kick-out plate; 14. a support column; 15. a reinforcing plate; 2. a separation cylinder; 21. an exhaust pipe; 22. a column casing; 3. a centrifugal barrel; 31. a driving motor; 32. a central shaft; 33. centrifugal fan blades; 34. an air inlet pipe; 4. a grinding cylinder; 5. a return pipe; 6. a grinding assembly; 61. a tripod; 62. a connecting shaft; 63. a grinding roller; 64. a transmission cavity; 65. a drive gear; 66. an inner gear ring; 67. a driven gear; 68. a conical portion.

Detailed Description

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

Examples: 1-3, the circulating type efficient pulverizer comprises a shell 1 and a grinding roller 63, wherein a feed hopper 11 is fixed on the side wall of the shell 1, a wind locking cavity is arranged at the bottom of the feed hopper 11, a feed motor 12 is fixed on the outer wall of the wind locking cavity, a plurality of stirring plates 13 are fixed in the wind locking cavity after the output end of the feed motor 12 extends to the wind locking cavity, four supporting columns 14 are fixed at the bottom of the shell 1, reinforcing plates 15 are fixed between the four supporting columns 14, and the four supporting columns 14 are fixed with the outer wall of a centrifugal cylinder 3;

specifically, the feeding motor 12 drives the stirring plate 13 to rotate, so that large powder in the feeding hopper 11 can be stirred into the shell 1, the running speed of the feeding motor 12 is controlled, and the feeding amount can be regulated to prevent the conditions of excessive feeding or insufficient feeding.

Further, a separating tube 2 is fixedly welded at the top end of the shell 1, the top end of the return tube 5 is tangential to the outer wall of the separating tube 2, an exhaust tube 21 is fixedly embedded in the top end face of the separating tube 2, a column casing 22 which is gradually narrowed from top to bottom is fixedly arranged at the bottom end of the separating tube 2, and the bottom end of the column casing 22 is communicated with the shell 1;

specifically, compressed air containing powder enters the separating cylinder 2 to form cyclone, the powder with heavier mass is spirally reduced along the inner walls of the separating cylinder 2 and the column casing 22 under the centrifugal action of the cyclone, and the powder with lighter mass is discharged into the bag-type dust collector together with the air from the exhaust pipe 21, so that the powder separation is realized.

Further, a centrifugal barrel 3 is arranged below the shell 1, a driving motor 31 is fixed at the bottom of the centrifugal barrel 3, a central shaft 32 is fixed at an output shaft of the driving motor 31, the top end of the central shaft 32 penetrates through the centrifugal barrel 3 and is in transmission connection with the grinding component 6, a plurality of centrifugal fan blades 33 are fixed at the part of the central shaft 32 positioned in the centrifugal barrel 3, an air inlet pipe 34 is fixed at one side of the centrifugal barrel 3, the air inlet pipe 34 and the bottom end of a return pipe 5 are both tangential to the inner wall of the centrifugal barrel 3, and the air inlet pipe 34 and the return pipe 5 are both connected at the same side of the centrifugal barrel 3;

specifically, the driving motor 31 drives the centrifugal fan blades 33 to rotate, the centrifugal fan blades 33 throw the powder to the periphery under the action of centrifugal force, and the centrifugal fan blades 33 compress the air entering from the air inlet pipe 34 and then discharge the compressed air into the return pipe 5 together with the powder.

Further, a grinding cylinder 4 is fixed between the centrifugal cylinder 3 and the bottom end of the shell 1, a return pipe 5 is fixedly connected between the centrifugal cylinder 3 and the separating cylinder 2, wherein a grinding assembly 6 is installed in the grinding cylinder 4, the grinding assembly 6 comprises a tripod 61 fixed at the bottom end port of the grinding cylinder 4, a connecting shaft 62 is rotationally embedded in the center of the tripod 61, the bottom end of the connecting shaft 62 is fixed with the central shaft 32, a transmission cavity 64 is arranged in the grinding roller 63, the top end of the connecting shaft 62 extends to be rotationally connected with the transmission cavity 64, a driving gear 65 is fixed on the part of the connecting shaft 62 positioned in the transmission cavity 64, an inner gear ring 66 is arranged on the inner wall of the transmission cavity 64, a driven gear 67 is connected between the driving gear 65 and the inner gear ring 66 in a meshed mode, and the rotating shaft of the driven gear 67 is rotationally connected with the inner wall of the transmission cavity 64;

specifically, the central shaft 32 drives the connecting shaft 62 to rotate, the connecting shaft 62 drives the driving gear 65 to be meshed with the driven gear 67 for transmission, the driven gear 67 is meshed with the inner gear ring 66, and the grinding roller 63 rotates, so that the grinding roller 63 can keep slowly rotating while the central shaft 32 keeps rotating at a high speed.

Further, the grinding cylinder 4 is in a funnel-shaped structure, the bottom end of the grinding roller 63 is adapted to the structural design of the grinding cylinder 4, the gap between the grinding roller 63 and the grinding cylinder 4 is gradually reduced from top to bottom, grinding protrusions are densely distributed on the adjacent sides of the grinding roller 63 and the grinding cylinder 4, and a conical part 68 is arranged at the top end of the grinding roller 63;

specifically, the powder slides down along the tapered portion 68 into the gap between the grinding roller 63 and the inner wall of the grinding cylinder 4, the gap becomes gradually smaller, and under the action of gravity, the powder gradually descends and is pressed by the grinding protrusions, so that the grinding roller 63 can gradually grind the powder, and the ground powder falls into the centrifugal cylinder 3.

Working principle: when the device is used, the driving motor 31 drives the centrifugal fan blades 33 to rotate, the centrifugal fan blades 33 compress air entering from the air inlet pipe 34 and then discharge the compressed air into the return pipe 5 together with powder, compressed air containing the powder enters the separating cylinder 2 to form whirlwind, under the centrifugal action of the whirlwind, the powder with heavier mass is spirally lowered along the inner walls of the separating cylinder 2 and the column cylinder 22 until falling onto the grinding roller 63, synchronously, the feeding motor 12 drives the stirring plate 13 to rotate, large powder in the feed hopper 11 can be stirred into the shell 1, the powder slides down along the conical part 68 into a gap between the grinding roller 63 and the inner wall of the grinding cylinder 4, the central shaft 32 drives the connecting shaft 62 to rotate, the connecting shaft 62 drives the driving gear 65 to mesh with the driven gear 67, the driven gear 67 meshes with the ring 66 and the grinding roller 63 to rotate, under the action of gravity, the grinding roller 63 can gradually grind the powder, the ground powder falls into the centrifugal cylinder 3 and is re-sucked into the return pipe 5, and the powder with lighter mass is discharged into the bag-type dust collector together with the air from the exhaust pipe 21, so that the powder is uniformly granulated and uniformly collected after passing through the bag-type dust collector.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, 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.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high-efficient milling machine of circulation, includes casing (1) and grinding roller (63), its characterized in that, casing (1) top fixed welding has separating drum (2), the below of casing (1) is provided with centrifugal tube (3), be fixed with grinding drum (4) between centrifugal tube (3) and casing (1) bottom, fixedly connected with back flow (5) between centrifugal tube (3) and separating drum (2), wherein, install grinding module (6) in grinding drum (4), the bottom of centrifugal tube (3) is fixed with driving motor (31), the output shaft of driving motor (31) is fixed with center pin (32), center pin (32) top pass behind centrifugal tube (3) with grinding module (6) transmission and be connected, just center pin (32) are located the part of centrifugal tube (3) and are fixed with a plurality of centrifugal fan blades (33).

2. The circulating type efficient pulverizer as set forth in claim 1, wherein: the grinding assembly (6) comprises a tripod (61) fixed at the bottom port of the grinding cylinder (4), a connecting shaft (62) is rotationally embedded in the center of the tripod (61), the bottom end of the connecting shaft (62) is fixed with a central shaft (32), a transmission cavity (64) is arranged in the grinding roller (63), the top end of the connecting shaft (62) extends to be rotationally connected with the transmission cavity (64), a driving gear (65) is fixed on the part, located in the transmission cavity (64), of the connecting shaft (62), an inner gear ring (66) is arranged on the inner wall of the transmission cavity (64), a driven gear (67) is connected between the driving gear (65) and the inner gear ring (66) in a meshed mode, and a rotating shaft of the driven gear (67) is rotationally connected with the inner wall of the transmission cavity (64).

3. The circulating type efficient pulverizer as set forth in claim 2, wherein: the grinding cylinder (4) is in a funnel-shaped structure, the bottom end of the grinding roller (63) is matched with the structural design of the grinding cylinder (4), the gap between the grinding roller (63) and the grinding cylinder (4) is gradually reduced from top to bottom, grinding protrusions are densely distributed on adjacent sides of the grinding roller (63) and the grinding cylinder (4), and a conical portion (68) is arranged at the top end of the grinding roller (63).

4. The circulating type efficient pulverizer as set forth in claim 1, wherein: an air inlet pipe (34) is fixed on one side of the centrifugal cylinder (3), the bottom ends of the air inlet pipe (34) and the return pipe (5) are tangential to the inner wall of the centrifugal cylinder (3), and the air inlet pipe (34) and the return pipe (5) are connected to the same side of the centrifugal cylinder (3).

5. The circulating type efficient pulverizer as set forth in claim 1, wherein: the top of back flow (5) is tangent with separating drum (2) outer wall setting, fixedly inlay on the top end face of separating drum (2) and be equipped with exhaust duct (21), the bottom mounting of separating drum (2) has a column casing (22) that narrows gradually from top to bottom, the bottom of column casing (22) is linked together with casing (1).

6. The circulating type efficient pulverizer as set forth in claim 1, wherein: the utility model discloses a centrifugal barrel, including casing (1), feed hopper (11) bottom is provided with the lock wind chamber, and this lock wind chamber outer wall is fixed with feed motor (12), the output of feed motor (12) extends to lock wind intracavity and is fixed with a plurality of baffles (13), the bottom of casing (1) is fixed with four support column (14), four be fixed with reinforcing plate (15) between support column (14), and four support column (14) are all fixed mutually with centrifugal barrel (3) outer wall.