CN109433343A - A kind of sieve plate convenient for ball mill discharging - Google Patents
A kind of sieve plate convenient for ball mill discharging Download PDFInfo
- Publication number
- CN109433343A CN109433343A CN201811613749.8A CN201811613749A CN109433343A CN 109433343 A CN109433343 A CN 109433343A CN 201811613749 A CN201811613749 A CN 201811613749A CN 109433343 A CN109433343 A CN 109433343A
- Authority
- CN
- China
- Prior art keywords
- sieve plate
- ball mill
- rectangular section
- trapezoidal sections
- bar shaped
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/183—Feeding or discharging devices
- B02C17/1835—Discharging devices combined with sorting or separating of material
- B02C17/1855—Discharging devices combined with sorting or separating of material with separator defining termination of crushing zone, e.g. screen denying egress of oversize material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
- B02C2023/165—Screen denying egress of oversize material
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
The present invention provides a kind of sieve plates convenient for ball mill discharging, including several bar shaped screen holes, bar shaped screen hole is including trapezoidal sections and rectangular section interconnected radially perpendicular to the cross sectional shape of plane where sieve plate, the bottom of the trapezoidal sections is located at side of the sieve plate outside ball mill, upper bottom is connected with wherein a side of rectangular section, and the opposite another side of rectangular section is then located at the side that sieve plate faces ball grinder interior；The present invention can sift out varying aperture to avoid what is occurred after the inner lateral wearing of bar shaped screen hole, therefore can guarantee stable to sift out aperture for a long time, it not will lead to bulky grain raw material and leave ball mill in advance, the stabilization of discharging speed is also maintained accordingly, ensure enough milling times, it ensure that grinding quality, the longer time can also be used to replace again, save cost.
Description
Technical field
The present invention relates to milling apparatus fields, and in particular to a kind of discharging sieve plate for ball mill.
Background technique
Powder manufacture is very important a part in modern industry, such as a variety of ores of calcium carbonate, barium sulfate are carrying out
When retrofit, it is required to that powder is made up of preprocessing, then carry out following process.The fining development of modern industry simultaneously,
Also the requirement to powder product is continuously improved.
Ball mill is a kind of very common and important powder milling apparatus, and principle is driven using itself high speed scroll
A large amount of balls that inside installs roll therewith and mutual frictional impact, grind to will be mingled in particulate materials therein and roll
Powdering.The exit of ball mill is typically provided with a discharging sieve plate, and discharging sieve plate discharge can be passed through by being ground the powder finished,
And including ball and biggish particulate material are then blocked.Meanwhile in order to guarantee that powder material does not occur when passing through sieve plate
Blocking, the sieve pore on sieve plate usually be arrangeds tubaeform in expanding outward, i.e. its section is towards the trapezoidal of outside, allows powder
It is more smoothly left from sieve pore after the opening on the inside of ball mill by sieve plate.
But there is also certain problems for existing ball mill discharging sieve plate.Because to face ball grinder interior side frequent for sieve plate
By the collision friction of ball, surface can also be worn, and after the upper bottom side of trapezoid cross section is worn, will lead to trapezoidal
Height become smaller, then make new upper bottom length become larger, i.e. the aperture of sifting out of sieve plate becomes larger；As shown in figure 3, bold portion is
The upper bottom of former trapezoidal sections, dotted portion are the upper bottom of trapezoidal sections after abrasion, it is clear that the length at upper bottom is greater than raw footage after abrasion.This
The discharging speed that sample will lead to ball mill changes, while having part not grind the larger particles raw material finished and also arranging therewith
Out, grinding effect reduction is eventually led to.
Summary of the invention
For the deficiency in the presence of the prior art, the present invention provides a kind of sieve plate convenient for ball mill discharging, to
It solves existing ball mill discharging sieve plate and becomes larger because being caused to sift out aperture by internal ball abrasion, so that not ground
Complete raw material is discharged, discharging speed also becomes faster, and finally results in grinding effect variation, the bad problem of product quality.
To achieve the above object, present invention employs the following technical solutions:
A kind of sieve plate convenient for ball mill discharging, including several strip-type screens being circumferentially distributed on disc sieve plate
Hole, wherein each bar shaped screen hole is arc-shaped along the circumferential direction of sieve plate, and the bar shaped screen hole is radially perpendicular to where sieve plate
The cross sectional shape of plane includes trapezoidal sections and rectangular section interconnected, and the bottom of the trapezoidal sections is located at sieve plate in face of ball mill
External side, upper bottom is connected with wherein a side of rectangular section, and upper bottom is identical as the wherein side edge lengths of rectangular section, square
The opposite another side of shape section is then located at the side that sieve plate faces ball grinder interior.
In the present invention, the cross sectional shape of bar shaped screen hole is connected trapezoidal sections and rectangular section, and wherein rectangular section is close to ball milling
On the inside of machine, therefore when the ball of ball grinder interior and sieve plate frictional impact, begun to wear out from rectangular section side.Meanwhile because
The width of rectangle is constant, and the width of remainder keeps former long after a wherein lateral wearing, will not thus sift out aperture
Variation.
Compared with the prior art, the invention has the following beneficial effects:
1, present invention uses trapezoidal with the combined section of rectangle bar shaped screen hole, compared with the existing technology, can be to avoid
What is occurred after the inner lateral wearing of bar shaped screen hole sifts out varying aperture, thus can guarantee for a long time it is stable sift out aperture,
It not will lead to bulky grain raw material and leave ball mill in advance, maintain the stabilization of discharging speed accordingly, it is ensured that enough to grind yet
Time consuming, finally ensure that grinding quality；
2, the sieve plate in the present invention is after using longer time, as long as the position that is worn does not reach trapezoidal sections, no
The problem of aperture becomes larger can be sifted out, it can use always, compared with the existing technology, the longer time can be used again more
It changes, has saved cost.
Detailed description of the invention
Fig. 1 is schematic diagram of the invention；
Fig. 2 is the Section A-A figure in Fig. 1；
Fig. 3 is the sectional view of the prior art and Fig. 2 same area；
In figure: sieve plate 1, bar shaped screen hole 2, trapezoidal sections 21, rectangular section 22.
Specific embodiment
The technical solution in the present invention is further illustrated with reference to the accompanying drawings and embodiments.
Embodiment:
As shown in Figs. 1-2, the invention proposes a kind of sieve plates 1 convenient for ball mill discharging, including are circumferentially distributed in circle
Several bar shaped screen holes 2 on dish type sieve plate 1, wherein each circumferential direction of bar shaped screen hole 2 along sieve plate 1 is arc-shaped.This implementation
In example, bar shaped screen hole 2 divides to be uniformly distributed circumferentially on sieve plate 1 for eight groups, wherein each group of 4 bar shaped screen holes 2 are along fan
The diameter in shape face is from interior to outer setting, therefore its arc length is sequentially increased from inside to outside.
Wherein bar shaped screen hole 2 includes interconnected trapezoidal in the cross sectional shape radially perpendicular to 1 place plane of sieve plate
Section 21 and rectangular section 22, the bottom of the trapezoidal sections 21 are located at side of the sieve plate 1 outside ball mill, upper bottom and rectangular section 22
Wherein a side be connected, and upper bottom is identical as the wherein side edge lengths of rectangular section 22, the opposite another side of rectangular section 22
Then it is located at the side that sieve plate 1 faces ball grinder interior.Because rectangular section 22 is on the inside of ball mill, therefore work as the rolling of ball grinder interior
When pearl and 1 frictional impact of sieve plate, begun to wear out from 22 side of rectangular section.Meanwhile because the width of rectangle is constant, when wherein side
The width of remainder keeps former long after abrasion, will not thus sift out the variation in aperture, can guarantee for a long time steady
Fixed sifts out aperture, not will lead to bulky grain raw material and leaves ball mill in advance, also maintains the stabilization of discharging speed accordingly, really
Enough milling times have been protected, finally ensure that grinding quality.
In preferred scheme, trapezoidal sections 21 are isosceles trapezoid, to guarantee the integral strength of trapezoidal sections 21, and are being discharged
Patency when powder product.In further preferred scheme, the bottom length of trapezoidal sections 21 is twice of upper bottom length, and ladder
A height of rectangular vertical of shape section 21 is 2.5 times in the present embodiment in 2~3 times of bottom side side length in trapezoidal sections 21；It in this way can be with
The size of trapezoidal sections 21 is fully ensured that, so that powder be avoided to be blocked in the lesser rectangular section 22 in aperture.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (4)
1. a kind of sieve plate convenient for ball mill discharging, including several bar shaped screen holes being circumferentially distributed on disc sieve plate,
Wherein each bar shaped screen hole is arc-shaped along the circumferential direction of sieve plate, it is characterised in that: the bar shaped screen hole radially perpendicular to
The cross sectional shape of plane includes trapezoidal sections and rectangular section interconnected where sieve plate, and the bottom of the trapezoidal sections is located at sieve plate face
To the side outside ball mill, upper bottom is connected with wherein a side of rectangular section, and the wherein side side length at upper bottom and rectangular section
Spend it is identical, the opposite another side of rectangular section be then located at sieve plate face ball grinder interior side.
2. a kind of sieve plate convenient for ball mill discharging as described in claim 1, it is characterised in that: the trapezoidal sections are isosceles ladder
Shape.
3. a kind of sieve plate convenient for ball mill discharging as claimed in claim 1 or 2, it is characterised in that: under the trapezoidal sections
Bottom length is twice of upper bottom length.
4. a kind of sieve plate convenient for ball mill discharging as described in claim 1, it is characterised in that: a height of square of the trapezoidal sections
2~3 times perpendicular to bottom side side length in trapezoidal sections of shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811613749.8A CN109433343A (en) | 2018-12-27 | 2018-12-27 | A kind of sieve plate convenient for ball mill discharging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811613749.8A CN109433343A (en) | 2018-12-27 | 2018-12-27 | A kind of sieve plate convenient for ball mill discharging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109433343A true CN109433343A (en) | 2019-03-08 |
Family
ID=65538352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811613749.8A Pending CN109433343A (en) | 2018-12-27 | 2018-12-27 | A kind of sieve plate convenient for ball mill discharging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109433343A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111468244A (en) * | 2020-05-29 | 2020-07-31 | 济南大学 | Ball mill for industrial building materials |
| CN112958231A (en) * | 2021-02-26 | 2021-06-15 | 佛山市恒力泰机械有限公司 | Ball mill discharge end structure and ball mill cylinder |
| CN114669371A (en) * | 2022-03-29 | 2022-06-28 | 成都利君实业股份有限公司 | Material ball separating device and stirring mill using same |
-
2018
- 2018-12-27 CN CN201811613749.8A patent/CN109433343A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111468244A (en) * | 2020-05-29 | 2020-07-31 | 济南大学 | Ball mill for industrial building materials |
| CN112958231A (en) * | 2021-02-26 | 2021-06-15 | 佛山市恒力泰机械有限公司 | Ball mill discharge end structure and ball mill cylinder |
| CN114669371A (en) * | 2022-03-29 | 2022-06-28 | 成都利君实业股份有限公司 | Material ball separating device and stirring mill using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190308 |