CN210386070U

CN210386070U - Ball mill

Info

Publication number: CN210386070U
Application number: CN201921050565.5U
Authority: CN
Inventors: 张沁玥
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-08
Filing date: 2019-07-08
Publication date: 2020-04-24
Anticipated expiration: 2029-07-08

Abstract

The utility model provides a ball mill, including a ball mill section of thick bamboo, ball mill section of thick bamboo inner chamber front end sets up the feed inlet, and the rear end sets up the discharge gate, and ball mill section of thick bamboo inner chamber sets up the separation blade, the separation blade is the contained angle with ball mill section of thick bamboo inner chamber wall. The utility model provides a ball mill through set up the separation blade at ball mill section of thick bamboo inner chamber, when carrying out the ball-milling to the material, when the material is by the ball-milling to fine powder, the separation blade produces the resistance with material flow opposite direction to the material to reduce the flow velocity of powder, make the grinding of powder to becoming the fine powder of higher specific surface area.

Description

Ball mill

Technical Field

The utility model belongs to the technical field of grinder, concretely relates to ball mill.

Background

The construction waste is usually a massive solid material when being recycled, and can be recycled after being crushed and ground into small-particle powder, a ball mill is usually adopted to ball-grind the construction waste into fine micro powder with larger specific surface area for cement admixture and concrete admixture in the prior art, in the ball milling process, the material particles are more fine due to grinding, the fluidity is higher, the material particles are usually difficult to grind to obtain the fine micro powder with the specific surface area of more than 600 square meters per kilogram, and the construction waste has ideal activity index and mortar compressive strength increasing ratio when the specific surface area exceeds 600 square meters per kilogram, and can be better applied to the cement admixture and the concrete admixture.

SUMMERY OF THE UTILITY MODEL

Based on above problem, the utility model aims to provide a ball mill.

In order to realize the above purpose, the utility model discloses a technical scheme be: the ball mill comprises a ball milling barrel, wherein a feed inlet is formed in the front end of an inner cavity of the ball milling barrel, a discharge outlet is formed in the rear end of the inner cavity of the ball milling barrel, a separation blade is arranged in the inner cavity of the ball milling barrel, and the separation blade and the wall of the inner cavity of the ball milling barrel are included angles.

The utility model provides a ball mill through set up the separation blade at ball mill section of thick bamboo inner chamber, when carrying out the ball-milling to the material, when the material is by the ball-milling to fine powder, the separation blade produces the resistance with material flow opposite direction to the material to reduce the flow velocity of powder, make the grinding of powder to becoming the fine powder of higher specific surface area.

Specifically, the plurality of baffle plates are layered and are circumferentially and uniformly distributed on the inner cavity wall of the ball milling cylinder, and the plurality of layers of baffle plates are arranged to generate resistance as large as possible to the powder, so that the powder is ground into fine powder with high specific surface area; more specifically, a plurality of layers of supports are evenly distributed on the inner cavity wall of the ball grinding cylinder in the circumferential direction, and the blocking pieces are installed on the supports.

Optimally, the included angle between the baffle plate and the inner tangent surface of the inner cavity wall of the ball grinding cylinder is 15-45 degrees, and the included angle between the baffle plate and the inner cavity wall is too large or too small, so that the blocking effect of the baffle plate on the powder is not strong.

Optimized, set up the partition panel between the discharge gate of ball-milling inner chamber and the feed inlet, set up the through-hole on the partition panel, the separation blade sets up between partition panel and discharge gate and on being close to one section inner chamber wall of discharge gate, separates ball mill section of thick bamboo inner chamber into two working chambers through setting up the partition panel, and the material gets into the first working chamber of not taking the baffle from the feed inlet earlier and grinds, treats that the through-hole through partition panel after the material grinds to certain fineness gets into the second working chamber that has the baffle, grinds to becoming the slight powder that has high specific surface area after that, can prevent too big material collision separation blade like this to the protection separation blade.

The utility model has the advantages that:

(1) the utility model provides a ball mill through set up the separation blade at the ball mill inner chamber, the separation blade produces the material with material flow opposite direction's resistance to reduce the flow velocity of powder, make the grinding of powder to the fine powder that becomes higher specific surface area.

(2) The utility model provides a ball mill, the further partition panel that sets up the band-pass hole is in order to separately grind large granule material and tiny particle material, has both guaranteed grinding efficiency, protects the separation blade again and avoids the collision of large granule material.

Drawings

Fig. 1 is a schematic view of a ball mill provided by the present invention;

FIG. 2 is a sectional view taken along line A-A in FIG. 1;

FIG. 3 is a sectional view taken along line B-B in FIG. 1;

wherein, 1 is a ball milling cylinder, 11 is a feed inlet, 12 is a discharge outlet, 2 is a partition board, 21 is a through hole, and 3 is a baffle.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Examples

As shown in fig. 1, the embodiment provides a ball mill, including a ball mill barrel 1, the front end of the inner cavity of the ball mill barrel 1 is provided with a feed inlet 11, the rear end is provided with a discharge outlet 12, a bin separation plate 2 is arranged between the feed inlet 11 and the feed inlet 12 of the inner cavity of the ball mill barrel 1, a through hole 21 is arranged on the bin separation plate 2, a separation blade 3 is arranged between the bin separation plate 2 and the discharge outlet 11 and on one section of the inner cavity wall close to the discharge outlet 12, and the separation blade 3 and the inner tangent of the inner cavity wall form an.

In the ball mill provided by the embodiment, the ball mill barrel 1 is cylindrical with the cross-sectional diameter of 3m and the length of 13m, the partition board 2 is arranged at the position 5m away from the feed inlet, the separation blade 3 is arranged in the barrel section range of 0-3 m close to the discharge outlet, the height of the separation blade is 20mm, the distance between adjacent separation blades is 40cm, and the separation blade 3 and the inner tangent of the inner cavity wall form an included angle of 30 degrees.

By adopting the ball mill provided by the embodiment, the yield of powder with the specific surface area of more than 600 square meters per kilogram can reach 60-70T/h, and after the separation blades are removed, the powder can rapidly flow out of the discharge hole due to the over-high flow rate, so that the ball milling effect is not ideal, and the specific surface area of the powder subjected to ball milling cannot reach the ideal 600 square meters per kilogram.

The above embodiments of the present invention are merely examples for illustrating the present invention and are not intended to limit the embodiments of the present invention. Variations and modifications in other variations will occur to those skilled in the art upon reading the foregoing description. Not all embodiments are exhaustive. All obvious changes or variations which are introduced by the technical solution of the present invention are still within the scope of the present invention.

Claims

1. The ball mill comprises a ball milling barrel, wherein the front end of an inner cavity of the ball milling barrel is provided with a feed inlet, and the rear end of the inner cavity of the ball milling barrel is provided with a discharge outlet.

2. The ball mill according to claim 1, characterized in that the plurality of baffle plates are layered and are circumferentially and uniformly distributed on the inner cavity wall of the ball mill barrel.

3. The ball mill according to claim 2, characterized in that a plurality of layers of brackets are uniformly distributed on the inner cavity wall of the ball mill barrel along the circumferential direction, and the baffle plates are arranged on the brackets.

4. The ball mill according to any one of claims 1 to 3, characterized in that the baffle plate and the inner tangent surface of the inner cavity wall of the ball mill barrel form an included angle of 15-45 degrees.

5. The ball mill according to any one of claims 1 to 3, characterized in that a partition plate is arranged between the discharge port and the feed port of the ball milling inner cavity, through holes are arranged on the partition plate, and the baffle plate is arranged on a section of inner cavity wall between the partition plate and the discharge port and close to the discharge port.