CN2187495Y

CN2187495Y - Vertical ball grinder

Info

Publication number: CN2187495Y
Application number: CN 94206415
Authority: CN
Inventors: 杨剑; 翟金璋
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-03-15
Filing date: 1994-03-15
Publication date: 1995-01-18
Anticipated expiration: 2004-03-15

Abstract

The utility model relates to a vertical ball grinder which is composed of a drum body, an electromotor gearing and steel ball media, wherein, spiral panel disks which are composed of spiral panels with spiral angles are installed on a main shaft in the drum body according to different grades, the spiral panels are arranged on a supporting disk, material dropping slots are distributed on the spiral panels in a radial direction, and a multi-grade powder-grinding device which is composed of centripetal material collecting sheets is arranged on the edge of the bottom of a fore-grade supporting disk. The utility model has the advantages of simple structure, reasonable design and high powder-grinding efficiency (which rages from 10 to 15 tons per hour), the grain size of discharged materials is lower than 0.8 millimeter, and the utility model is suitable for grinding powder of industry of metallurgy, construction material, chemical engineering, medicine, food product, etc.

Description

Vertical ball grinder

The utility model belongs to a kind of material grinding device that is used for metallurgy, building materials, chemical industry, medicine, food service industry.

At present, the ball mill of domestic production and use all is a horizontal type structure.Barrel diameter reaches several meters, length can reach tens meters, by the motor transferring power, utilize reductor, the cylindrical shell that drives interior dress liner plate by gears engaged rotates, and does medium by the steel ball that is equipped with in the cylindrical shell about 30-40%, makes it tumbling mutually of steel ball, impact is ground, and makes material reach pulverizing.Because the body heaviness of horizontal ball mill, rotating speed is low, needs the large-scale reductor of configuration, causes the material crush efficiency low, and power consumption is big.Especially in cement production process, the power consumption of ball mill can account for 2/3, and capacity usage ratio only is 2%, and all the other all become heat energy and consume; It is big to produce noise when on the other hand working, and abrasive body and liner plate loss are serious.

The purpose of this utility model provides a kind of attritor mill machine, utilizes the version of multiple coil friction classification grinding, realizes high efficiency superfine grinding.

For achieving the above object, technical solution of the present utility model is: classification on the vertical shaft of establishing in the cylindrical shell is equipped with the spiral face of being made up of the spiral panel that is provided with on the pallet, and the spiral face be radially distributed with the blanking slotted eye, and the blade that entad gathers materials of prime tray bottom edge setting is formed the multilevel grinding device.

Primary structure characteristics of the present utility model and effect:

1, utilize spiral friction structure principle, make steel ball medium and material edge have the relative rising of rolling of spiral face, the whereabouts of helical angle, impact, grinding reach quick crushing effect.

2, complete machine structure is reasonable in design, and high efficiency is impacted number of times 1000 times/minute, output 10-15 ton/hour, discharging-material size＜0.8 millimeter.

3, multiple coil face revolution can reach hundreds of rev/min, adopts the transmission of belt one-level, need not dispose large-scale reductor, makes it designs simplification, has reduced noise, greatly reduces equipment investment, has made full use of energy, has improved mill efficiency.

4, can be used as the production equipment of superfine powder, possess the design feature of ball mill and vibromill, can be used for wet production.When adopting the medium of non iron, can be used for avoiding the grinding of iron material.

Embodiment is further described in conjunction with the accompanying drawings:

Fig. 1 is the structural representation of vertical ball mill.

Fig. 2 is the spiral panel structure chart.

See that Fig. 1 shows the overall structure of vertical ball mill.One side of cylindrical shell is provided with two fans opens 90 ° door 2, two fan doors 2 and is connected with the cylindrical shell of latter half, be used for installation and keep in repair by door-hinge 7.In the cylindrical shell on the vertical shaft 3 of upper and lower side bearing body setting classification the spiral face is installed, the quantity of spiral face can be set as required, the spiral face is strengthened gusset by band pallet 5 is formed by bolting with its spiral panel that has helical angle 4 of going up setting.Spiral panel 4 can be makes an overall structure or fixing with pallet 5 by 4 combinations of several spiral panels, forms a high potential difference by the segment of each spiral panel 4 end.The helical angle of spiral panel 4 can be that equal helix angle (promptly all equating in same spiral panel what any helical angle of taking up an official post) is also unequal.Make it that the helicoid disc spins acts on that steel ball medium and material go round and begin again scroll upwards to a high position after, left low level again, fallen by blanking slotted eye 10 places that the distribution of prime helicoid disc radial has by the material of grinding, see Fig. 2, by the blade 8 that entad gathers materials of pallet 5 bottom margin settings material is thrown on the spiral face of next stage and carried out grinding, the material that reaches properties of powder performace falls into the hopper 6 of bottom and discharges from the gap of spiral face and cylindrical shell inner liner wall.

When motor drives belt pulley 1 make vertical shaft 3 and on the helicoid disc spins time, put into material by feeding mouth 9, the power that steel ball medium that the spiral face then is applied to it and material make progress, when rotating speed reaches certain speed, under the effect of friction, medium ball just rolls rising (relatively) simultaneously under centrifugal action on the spiral face that has helical angle, medium ball and material are thrown to the high-order ora terminalis and the cylindrical shell of spiral face and are close to the rising of rolling, along with the high position of spiral face is interrupted, medium ball is thrown low level, like this like this rolling repeatedly risen, grinding falls, impact makes material reach crushing effect, material is after previous stage spiral face is pulverized, and the blanking slotted eye 10 by the spiral face falls, and by the blade 8 that entad gathers materials material is all thrown on the spiral face of the second level, make it material through after multilevel grinding meets the requirements of properties of powder performace, discharge by discharge gate 6.

Claims

1, vertical ball mill, comprise transmission gear for electric motor and steel ball medium formation are installed on the cylindrical shell, the spiral face of being made up of the radial facing plate (4) of the last band helical angle that is provided with of pallet (5) is equipped with in classification on the vertical shaft (3) that it is characterized in that establishing in the cylindrical shell, and the radial distribution of spiral face has blanking slotted eye (10), and prime pallet (5) the bottom margin setting blade (8) that entad gathers materials is formed the multilevel grinding device.

2,, it is characterized in that spiral panel (4) can be made into an integral body or by several spiral panel and tray combination by the described vertical ball mill of claim 1.

3, by claim 1 or 2 described vertical ball mills, it is characterized in that the helical angle on the spiral panel (4), promptly the helical angle on same helicoid all equates or does not wait.