CN213700124U

CN213700124U - Vertical mill for sand making

Info

Publication number: CN213700124U
Application number: CN202022263874.XU
Authority: CN
Inventors: 赵俊; 曹酒毓; 康宇; 吴志根
Original assignee: Nanjing Kisen International Engineering Co Ltd
Current assignee: Zhongcai International Intelligent Technology Co ltd
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-07-16
Anticipated expiration: 2030-10-13

Abstract

The utility model relates to a vertical mill for making sand, which comprises a shell, a millstone transversely arranged at the bottom inside the shell and at least two milling components, wherein the two milling components are arranged on the shell at equal angles along the circumferential direction, and each milling component comprises a frame, a pressurizing cylinder, a rocker arm, a milling roller and a main shaft; the grinding roller is concentrically and rotatably sleeved at the inner end of the main shaft and is arranged above the grinding disc; the utility model crushes the raw materials by the interaction of the grinding roller and the grinding disc, and the noise and the vibration are small; the energy consumption is reduced, the service life is prolonged, the production cost is reduced, the sand yield of the finished sand is improved, and the modulus of the finished sand is reduced; in addition, the method can also be used for raw materials with more powder to enlarge the application range.

Description

Vertical mill for sand making

Technical Field

The utility model relates to a found mill for making sand.

Background

At present, the machine-made sand production industry generally adopts a mode of crushing raw materials to produce machine-made sand, the most main raw material crushing equipment is a vertical shaft impact crusher, the principle of the vertical shaft impact crusher is that the raw materials are thrown onto a reflecting plate to be crushed after being accelerated, and the kinetic energy loss of the raw materials is utilized to realize crushing; however, the vertical shaft impact crusher can generate larger impact force during working, so that the service life of the wear-resistant part is shorter, and the production cost is higher; meanwhile, the energy consumption is high, the noise and the vibration are large, and the sand yield of the finished sand is low and the modulus is high; in addition, the method cannot be applied to raw materials with more powder, has a small application range and is to be further improved.

SUMMERY OF THE UTILITY MODEL

To the current situation of above-mentioned prior art, the utility model aims to solve the technical problem that a noise and vibration are all less is provided to reduce manufacturing cost, improved simultaneously that the finished product sand goes out the sand rate low, reduced finished product sand modulus, still enlarged application scope's the upright mill that is used for making sand.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a found mill for making sand, includes the casing and transversely locates the mill of the inside bottom of casing, its characterized in that: the grinding device comprises a shell, at least two grinding assemblies and a grinding mechanism, wherein the two grinding assemblies are arranged on the shell at equal angles along the circumferential direction and comprise a rack, a pressurizing cylinder, a rocker arm, a grinding roller and a main shaft; the grinding device comprises a rack, a main shaft, a grinding roller, a plurality of scraping plates and a grinding disc, wherein the rack is arranged outside the shell, the rocking arm is rotatably connected to the upper end of the rack, the telescopic end of the pressurizing cylinder is rotatably connected to the lower end of the rocking arm, the fixed end of the pressurizing cylinder is rotatably connected to the lower end of the rack, the main shaft is arranged in the shell in an inserting mode, the outer end of the main shaft is fixed to the upper end of the rocking arm, the grinding roller is concentrically and rotatably sleeved at the inner end of the main shaft and is arranged above the grinding disc, a conical sinking cavity is formed in the center of the upper end of the grinding disc, the lower side of the grinding roller is matched with the inner wall of the conical sinking cavity, a plurality of scraping plates; the top of the shell is also inserted with vertically distributed feed pipes.

Preferably, the included angle alpha between the main shaft and the horizontal plane is 5-30 degrees.

Preferably, the vertical clearance between the lower side of the circumferential side surface of the grinding roller and the inner wall of the conical sinking chamber when the lower side of the circumferential side surface of the grinding roller and the inner wall of the conical sinking chamber are parallel to each other is 10-50 mm.

Preferably, a speed reducer is further fixed below the bottom of the shell, a motor is further arranged on one side of the speed reducer, a rotating shaft of the motor is connected with an input shaft of the speed reducer, and an output shaft of the speed reducer vertically penetrates through the bottom of the shell upwards and is fixed at the center of the lower end of the grinding disc.

Compared with the prior art, the utility model has the advantages of: the utility model crushes the raw materials by the interaction of the grinding roller and the grinding disc, and the noise and the vibration are small; the energy consumption is reduced, the service life is prolonged, the production cost is reduced, the sand yield of the finished sand is improved, and the modulus of the finished sand is reduced; in addition, the method can also be used for raw materials with more powder to enlarge the application range.

Drawings

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

fig. 2 is a top view structural diagram of the present invention.

Detailed Description

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and components may be omitted.

As shown in fig. 1-2, a vertical mill for sand making comprises a housing 1, a grinding disc 2 transversely arranged at the bottom inside the housing 1, and at least two grinding assemblies, wherein the two grinding assemblies are arranged on the housing 1 at equal angles along the circumferential direction, and each grinding assembly comprises a frame 7, a pressurizing cylinder 8, a rocker arm 9, a grinding roller 10 and a main shaft 12; the grinding device comprises a frame 7, a rocker arm 9, a pressurizing cylinder 8, a grinding roller 10, a grinding disc 2, a grinding roller and a grinding roller, wherein the frame 7 is arranged on the outer side of the shell 1, the rocker arm 9 is rotatably connected to the upper end of the frame 7, the telescopic end of the pressurizing cylinder 8 is rotatably connected to the lower end of the rocker arm 9, the fixed end of the pressurizing cylinder 8 is rotatably connected to the lower end of the frame 7, the main shaft 12 is arranged in the shell 1 in an inserting mode, the outer end of the main shaft 12 is fixed; a conical sinking cavity 21 is formed in the center of the upper end of the grinding disc 2, the lower side of the grinding roller 10 is matched with the inner wall of the conical sinking cavity 21, the vertical clearance between the lower side of the circumferential side surface of the grinding roller 10 and the inner wall of the conical sinking cavity 21 is 10-50 mm when the lower side of the circumferential side surface of the grinding roller is parallel to the inner wall of the conical sinking cavity 21, a plurality of scraping plates 3 which are distributed at equal angles along the circumferential direction are further fixed on the outer edge of the lower end of the grinding disc 2, correspondingly, a discharge port 4 is further arranged on one side of the bottom of the shell; the top of the shell 1 is also inserted with a vertically distributed feed pipe 11.

A speed reducer 6 is further fixed below the bottom of the shell 1, a motor 5 is further arranged on one side of the speed reducer 6, a rotating shaft of the motor 5 is connected with an input shaft of the speed reducer 6, and an output shaft of the speed reducer 6 vertically penetrates through the bottom of the shell 1 upwards and is fixed at the center of the lower end of the grinding disc 2.

The working principle is as follows: the raw material enters the shell 1 through the feeding pipe 11 and falls into the conical sinking cavity 21 on the grinding disc 2, the rotating shaft of the motor 5 drives the input shaft of the speed reducer 6 to rotate, and then the grinding disc 2 is driven to rotate by the output shaft of the speed reducer 6, so that the raw material is driven to move towards the edge of the grinding disc 2 by centrifugal force, and when the raw material moves between the grinding roller 10 and the grinding disc 2, the raw material is crushed under the extrusion of the grinding roller 10 and the grinding disc 2, and meanwhile, the grinding roller 10 is driven to rotate passively; because the lower side of the circumferential side surface of the grinding roller 10 is separated from the inner wall of the conical settling chamber 21 by a certain distance, the direct contact between the grinding disc 2 and the grinding roller 10 is avoided, and the proper material bed thickness can be established between the grinding disc 2 and the grinding roller 10, so that the vibration is small during operation and the sand making efficiency is high; the milled materials continuously move towards the edge of the grinding disc 2 under the drive of the grinding disc 2 until leaving the grinding disc 2 and falling to the inner bottom of the shell 1, and move to the upper part of the discharge port 4 under the drive of the plurality of scraping plates 3 and are discharged outwards through the discharge port 4; the interior of the shell 1 adopts micro negative pressure for dust collection, so that the production environment is better, and the dust pollution is less.

The telescopic end of the driving pressurizing cylinder 8 extends outwards, and the outer end of the main shaft 12 is driven by the rocker arm 9 to swing up and down, so that the inclination angle of the grinding roller 10 is adjusted to achieve a more proper grinding angle.

The utility model crushes the raw materials by the interaction of the grinding roller 10 and the grinding disc 2, and the noise and the vibration are small; the energy consumption is reduced, the service life is prolonged, the production cost is reduced, the sand yield of the finished sand is improved, and the modulus of the finished sand is reduced; in addition, the method can also be used for raw materials with more powder to enlarge the application range.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a found mill for making sand, includes the casing and transversely locates the mill of the inside bottom of casing, its characterized in that: the grinding device comprises a shell, at least two grinding assemblies and a grinding mechanism, wherein the two grinding assemblies are arranged on the shell at equal angles along the circumferential direction and comprise a rack, a pressurizing cylinder, a rocker arm, a grinding roller and a main shaft; the grinding device comprises a rack, a main shaft, a grinding roller, a plurality of scraping plates and a grinding disc, wherein the rack is arranged outside the shell, the rocking arm is rotatably connected to the upper end of the rack, the telescopic end of the pressurizing cylinder is rotatably connected to the lower end of the rocking arm, the fixed end of the pressurizing cylinder is rotatably connected to the lower end of the rack, the main shaft is arranged in the shell in an inserting mode, the outer end of the main shaft is fixed to the upper end of the rocking arm, the grinding roller is concentrically and rotatably sleeved at the inner end of the main shaft and is arranged above the grinding disc, a conical sinking cavity is formed in the center of the upper end of the grinding disc, the lower side of the grinding roller is matched with the inner wall of the conical sinking cavity, a plurality of scraping plates; the top of the shell is also inserted with vertically distributed feed pipes.

2. A vertical mill for making sand according to claim 1, characterised in that: the included angle alpha between the main shaft and the horizontal plane is 5-30 degrees.

3. A vertical mill for making sand according to claim 1, characterised in that: and the vertical clearance between the lower side of the circumferential side surface of the grinding roller and the inner wall of the conical sinking cavity is 10-50 mm when the lower side of the circumferential side surface of the grinding roller and the inner wall of the conical sinking cavity are parallel to each other.

4. A vertical mill for making sand according to claim 1, characterised in that: a speed reducer is further fixed below the bottom of the shell, a motor is further arranged on one side of the speed reducer, a rotating shaft of the motor is connected with an input shaft of the speed reducer, and an output shaft of the speed reducer vertically penetrates through the bottom of the shell upwards and is fixed at the center of the lower end of the grinding disc.