CN202778930U - Preliminary-classification self-returning type drum screen - Google Patents
Preliminary-classification self-returning type drum screen Download PDFInfo
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- CN202778930U CN202778930U CN 201220281433 CN201220281433U CN202778930U CN 202778930 U CN202778930 U CN 202778930U CN 201220281433 CN201220281433 CN 201220281433 CN 201220281433 U CN201220281433 U CN 201220281433U CN 202778930 U CN202778930 U CN 202778930U
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Abstract
The utility mode discloses a preliminary-classification self-returning type drum screen which is composed of a first undersize sieve segment (1), a connecting flange (2), a second sieve segment (3), a material collector (4), a central return feeder (5), a medium fraction storage bin (6) and a fine fraction storage bin (7). The preliminary-classification self-returning type drum screen is fixed at a discharge end of an autogenous mill through the connecting flange (2) and bolts and rotates along the autogenous mill. The connecting flange divides the preliminary-classification self-returning type drum screen into the first sieve segment (1) and the second segment of sieve (2). The first segment of sieve is provided with an abrasion resistant rubber sieve plate of a corresponding particle size requirement according to the feeding particle size requirements of a hydrocyclone, and preliminary classification is carried out before materials enters the hydrocyclone. Oversize products enter the second sieve segment (3), the second sieve segment (3) returns the materials larger than a certain specific particle grade to the autogenous mill to crush again through the material collecting device on the tail portion of the preliminary-classification self-returning type drum screen and the central self-returning device, and therefore the aim of preliminary classification and self-returning of the materials is achieved.
Description
Technical field
The utility model relates to and a kind ofly adds after the check screening of ball-milling technology flow process coarse grain from the device that returns and provide for cyclone in the loop pre-classification for the autogenous grinding of ore dressing single hop, autogenous grinding.
Background technology
At present, the autogenous grinding of ore dressing single hop, autogenous grinding add autogenous tumbling mill in the ball-milling technology flow process often with self-return screen, and and cyclone form the loop.But because self-return screen is easy to wear, grade is excessive behind the sieve, and cyclone classification efficient is not high, Grading Overflow granularmetric composition is unreasonable; And cause slag stock pump serious wear, consume large.
Summary of the invention
Excessive for grade after overcoming existing single hop autogenous grinding, autogenous grinding and adding ball-milling technology flow process self-return screen sieve, cyclone classification efficient is not high, Grading Overflow granularmetric composition is unreasonable; And cause the deficiency of slag stock pump serious wear, and the utility model provides a kind of pre-classification self-turning-back drum sieve, and this drum sieve can not only realize that coarse grain from returning, reduces the pump loss, can also carry out pre-classification for cyclone.
The utility model provides a kind of pre-classification self-turning-back drum sieve, is comprised of one section dusting cover (1), connecting flange (2), two sections sieves (3), loading head (4), center material returning device (5), intermediate fraction feed bin (6), fine fraction feed bin (7).It is characterized in that: one section dusting cover (1) and two sections sieves (3) are cascaded by connecting flange (2) and bolt, and center material returning device (5) is fixed on one section dusting cover (1) and the two sections sieves (3) by flange and bolt-connection.Solving the technical scheme that its technical problem adopts is: pre-classification self-turning-back drum sieve by connecting flange, be bolted to the autogenous tumbling mill discharge end, and Random-Rotation; This connecting flange is divided into one section sieve and two sections sieves with it; One section dusting cover (1) requires the design hole diameter of sieve (perforated) plate according to the cyclone feed preparation unit size, ore through the pre-classification of one section dusting cover (1) falls into fine fraction feed bin (7), be transported to cyclone with the slag stock pump again, because entering the ore particle diameter of cyclone distributes rationally, cyclone classification efficient is improved, and the loss of slag stock pump reduces; The ore of intermediate fraction falls into intermediate fraction feed bin (6) after screening through two sections sieves (3), is transported to ball mill by pump and regrinds; The coarse fraction ore enters loading head (4), returns autogenous tumbling mill by center material returning device (5) again and regrinds.
Description of drawings
Fig. 1 is the process chart of pre-classification self-turning-back drum sieve.
Fig. 2 is pre-classification self-turning-back drum sieve cutaway view.
Wherein: (1) one section dusting cover, (2) connecting flange, (3) two sections sieves, (4) loading head, (5) center material returning device, (6) intermediate fraction feed bin, (7) fine fraction feed bin, (8) autogenous tumbling mill.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
As shown in Figure 1, raw ore enters pre-classification self-turning-back drum sieve through after the autogenous tumbling mill autogenous grinding, and ore is divided into three kinds of fine fractions, intermediate fraction, coarse fraction behind the sieve.Coarse fraction is from returning to autogenous tumbling mill, and intermediate fraction is delivered to ball mill through pump and regrinds, and fine fraction is delivered to cyclone through pump and carries out classification.
As shown in Figure 2, one section dusting cover (1) stretches into autogenous tumbling mill (8) discharge end, one section dusting cover (1) is bolted and is fixed on autogenous tumbling mill (8) discharge end, two sections sieves (3) are bolted and are fixed on one section dusting cover (1) connecting flange (2), loading head (4) is bolted and is fixed on two sections sieves (3) discharge end, and center material returning device (5) is bolted and is fixed on one section dusting cover (1) and the two sections sieves (3); Connect intermediate fraction feed bin (6) under two sections sieves (3), connect fine fraction feed bin (7) under one section dusting cover (1).
Claims (3)
1. pre-classification self-turning-back drum sieve, formed by one section dusting cover (1), connecting flange (2), two sections sieves (3), loading head (4), center material returning device (5), intermediate fraction feed bin (6), fine fraction feed bin (7), it is characterized in that: one section dusting cover (1) and two sections sieves (3) are cascaded by connecting flange (2) and bolt, and center material returning device (5) is fixed on one section dusting cover (1) and the two sections sieves (3) by flange and bolt-connection.
2. according to pre-classification self-turning-back drum sieve claimed in claim 1, it is characterized in that: one section dusting cover (1) requires the design hole diameter of sieve (perforated) plate according to the cyclone feed preparation unit size, ore through the pre-classification of one section dusting cover (1) falls into fine fraction feed bin (7), be transported to cyclone with the slag stock pump again, because entering the ore particle diameter of cyclone distributes rationally, cyclone classification efficient improves, and the loss of slag stock pump reduces.
3. according to pre-classification self-turning-back drum sieve claimed in claim 1, it is characterized in that: the ore of intermediate fraction falls into intermediate fraction feed bin (6) after screening through two sections sieves (3), is transported to ball mill by pump and regrinds; The coarse fraction ore enters loading head (4), returns autogenous tumbling mill by center material returning device (5) again and regrinds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220281433 CN202778930U (en) | 2012-06-09 | 2012-06-09 | Preliminary-classification self-returning type drum screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220281433 CN202778930U (en) | 2012-06-09 | 2012-06-09 | Preliminary-classification self-returning type drum screen |
Publications (1)
| Publication Number | Publication Date |
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| CN202778930U true CN202778930U (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220281433 Expired - Lifetime CN202778930U (en) | 2012-06-09 | 2012-06-09 | Preliminary-classification self-returning type drum screen |
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| CN (1) | CN202778930U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110436733A (en) * | 2019-09-05 | 2019-11-12 | 龙游县河道疏浚砂资源开发有限公司 | A kind of silt separation apparatus and its separation method |
| CN114669388A (en) * | 2022-04-19 | 2022-06-28 | 安徽马钢矿业资源集团姑山矿业有限公司 | Pre-screening device applied to semi-autogenous grinding and screening process thereof |
-
2012
- 2012-06-09 CN CN 201220281433 patent/CN202778930U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110436733A (en) * | 2019-09-05 | 2019-11-12 | 龙游县河道疏浚砂资源开发有限公司 | A kind of silt separation apparatus and its separation method |
| CN114669388A (en) * | 2022-04-19 | 2022-06-28 | 安徽马钢矿业资源集团姑山矿业有限公司 | Pre-screening device applied to semi-autogenous grinding and screening process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 334100, No. 52 Park Avenue, Shangrao economic and Technological Development Zone, Shangrao, Jiangxi Patentee after: Jiangxi Naipu Mining Machinery and New Materials Co., Ltd. Address before: Four industrial road, Shangrao Economic Development Zone, Jiangxi, Shangrao 334100, China Patentee before: Jiangxi Naipu Mining Machinery and New Materials Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 334100, No. 52 Park Avenue, Shangrao economic and Technological Development Zone, Shangrao, Jiangxi Patentee after: Jiangxi Naipu Mining Machinery Co., Ltd Address before: 334100, No. 52 Park Avenue, Shangrao economic and Technological Development Zone, Shangrao, Jiangxi Patentee before: JIANGXI NAIPU MINING MACHINERY AND NEW MATERIALS Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 334100 No. 18 Jili Avenue, Shangrao economic and Technological Development Zone, Shangrao City, Jiangxi Province Patentee after: Jiangxi Naipu Mining Machinery Co.,Ltd. Address before: No. 52, Xingyuan Avenue, Shangrao economic and Technological Development Zone, Shangrao City, Jiangxi Province 334100 Patentee before: Jiangxi Naipu Mining Machinery Co.,Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |
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| CX01 | Expiry of patent term |