CN201552125U - Counter flow type double-layer circular roll screen device - Google Patents
Counter flow type double-layer circular roll screen device Download PDFInfo
- Publication number
- CN201552125U CN201552125U CN2009202841345U CN200920284134U CN201552125U CN 201552125 U CN201552125 U CN 201552125U CN 2009202841345 U CN2009202841345 U CN 2009202841345U CN 200920284134 U CN200920284134 U CN 200920284134U CN 201552125 U CN201552125 U CN 201552125U
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- China
- Prior art keywords
- roll screen
- layer circular
- circle roll
- screen device
- circular roll
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- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to roll screen equipment, in particular to a counter flow type double-layer circular roll screen device, which is formed by an upper layer circular roll screen and a lower layer circular roll screen, roll gaps of the upper layer circular roll screen are larger than maximum sphere diameter of a finished ball, and roll gaps of the lower layer circular roll screen are smaller than minimum sphere diameter of the finished ball. The roll screen device is capable of screening out large blocks and large balls, improving raw ball quality, enhancing ventilation performance of a shaft furnace, improving screening efficiency, reducing powder entering the furnace, and increasing finished product ratio, and is convenient in maintenance and care.
Description
Technical field
The utility model relates to a kind of roll screen device, a kind of specifically reverse-flow double-deck circle roll screen device.
Background technology
Existing roll screen device has only one deck, can only once sieve green-ball, generally can only be used to sieve bead and powder, can not sieve bulk and big ball, screen rate is low, influenced the stove gas permeability, reduced yield rate, reduced quality of green pellets, can not reduce powder and go into stove, inconvenient care and maintenance, the finished ball rate of return mine is about 10%.
Summary of the invention
Technical problem to be solved in the utility model is: at the shortcoming that above prior art exists, propose a kind of reverse-flow double-deck circle roll screen device, can make round roll screen can screen out bulk and big ball, improve quality of green pellets, improve the shaft furnace gas permeability.
The technical scheme that the utility model solves above technical problem is:
Reverse-flow double-deck circle roll screen device is made up of upper strata circle roll screen and lower floor's circle roll screen, and the roller spacing of upper strata circle roll screen is greater than the maximum sphere diameter of finished ball, and lower floor's circle roll screen roller spacing is less than the minimum sphere diameter of finished ball.
The projection of upper strata circle roll screen and lower floor's circle roll screen in the vertical direction is overlapping, and is upright to having angle.The circle roll screen is made of the many round rollers that in one plane distribute.
The utility model has the advantages that: the utility model makes the circle roll screen can screen out bulk and big ball, improves quality of green pellets, improves the shaft furnace gas permeability; Improve the screening efficiency of circle roll screen, reduce powder and go into stove, improve yield rate; Maintain easily and maintain.The green-ball screen rate is low before improving, and the finished ball rate of return mine is about 10%, improves the back because the green-ball screen rate improves, and reduces more than 1% by its finished ball rate of return mine that directly influences.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Embodiment one
The structure of present embodiment as shown in Figure 1, a kind of reverse-flow double-deck green-ball circle roll screen device, the circle roll screen is made of the many round rollers that in one plane distribute, circle roll screen device is provided with two round roll screens, be respectively upper strata circle roll screen 1 and lower floor's circle roll screen 2, upper strata circle roll screen 1 is overlapping with the projection of lower floor's circle roll screen 2 in the vertical directions, stands to form an angle to view.The roller spacing of upper strata circle roll screen 1 is greater than the maximum sphere diameter of finished ball, and lower floor's circle roll screen 2 roller spacings are less than the minimum sphere diameter of finished ball.
The utility model adopts technique scheme, makes the circle roll screen can screen out bulk and big ball, improves quality of green pellets, improves the shaft furnace gas permeability; Improve the screening efficiency of circle roll screen, reduce powder and go into stove, improve yield rate; Maintain easily and maintain.
The utility model can also have other embodiment, and the technical scheme that equal replacement of all employings or equivalent transformation form all drops within the claimed scope of the utility model.
Claims (2)
1. reverse-flow double-deck circle roll screen device is characterized in that: be made up of upper strata circle roll screen and lower floor's circle roll screen, the roller spacing of described upper strata circle roll screen is greater than the maximum sphere diameter of finished ball, and described lower floor circle roll screen roller spacing is less than the minimum sphere diameter of finished ball.
2. reverse-flow double-deck circle roll screen device as claimed in claim 1 is characterized in that: the projection of described upper strata circle roll screen and lower floor's circle roll screen in the vertical direction is overlapping, and is upright to having angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202841345U CN201552125U (en) | 2009-12-10 | 2009-12-10 | Counter flow type double-layer circular roll screen device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202841345U CN201552125U (en) | 2009-12-10 | 2009-12-10 | Counter flow type double-layer circular roll screen device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201552125U true CN201552125U (en) | 2010-08-18 |
Family
ID=42611798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202841345U Expired - Fee Related CN201552125U (en) | 2009-12-10 | 2009-12-10 | Counter flow type double-layer circular roll screen device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201552125U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102463214A (en) * | 2010-11-16 | 2012-05-23 | 日辉东富(广州)动漫科技有限公司 | Plastic bead screening machine |
| CN108620309A (en) * | 2018-03-22 | 2018-10-09 | 广西华洋矿源材料有限公司 | A kind of multistage ore sieving device |
-
2009
- 2009-12-10 CN CN2009202841345U patent/CN201552125U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102463214A (en) * | 2010-11-16 | 2012-05-23 | 日辉东富(广州)动漫科技有限公司 | Plastic bead screening machine |
| CN102463214B (en) * | 2010-11-16 | 2015-07-29 | 广州炫谊动漫科技有限公司 | A kind of plastic bead screening machine |
| CN108620309A (en) * | 2018-03-22 | 2018-10-09 | 广西华洋矿源材料有限公司 | A kind of multistage ore sieving device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100818 Termination date: 20161210 |