CN202909933U - Powdery material rotary screen - Google Patents
Powdery material rotary screen Download PDFInfo
- Publication number
- CN202909933U CN202909933U CN 201220470204 CN201220470204U CN202909933U CN 202909933 U CN202909933 U CN 202909933U CN 201220470204 CN201220470204 CN 201220470204 CN 201220470204 U CN201220470204 U CN 201220470204U CN 202909933 U CN202909933 U CN 202909933U
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- screen cloth
- cylindric
- cylindric screen
- rotary
- rotary screen
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Abstract
The utility model discloses a powdery material rotary screen and belongs to the technical field of powdery material screening devices. The rotary screen comprises a casing, a cylindrical screen, a rotary shaft, a feeding port and a discharging port. The cylindrical screen is arranged in the middle of the casing, the rotary shaft penetrates through the center of the cylindrical screen, the cylindrical screen rotates with the rotary shaft as a shaft, the tail end of the feeding port is connected with the cylindrical screen, so that powdery materials can rotate along with the cylindrical screen after entering the cylindrical screen or are screened through the cylindrical screen due to the gravity, and the discharging port is arranged on the lower portion of the casing. The rotary screen is good in powder screening effect, less in environment pollution, simple in structure and easy to maintain.
Description
Technical field
The utility model relates to granular material screening plant technical field, particularly a kind of granular material rotary screen.
Background technology
In blast-furnace coal powder injection technique, blast furnace be can spray into smoothly in order to guarantee coal dust, and plugging, the stifled problem such as rob avoided, before coal dust sprays into blast furnace, must adopt special pulverized coal sieve that the foreign material sieve in the coal is removed.In the prior art, in the blast-furnace coal powder preparation process, usually the method for sieving that adopts is vibrosieve, namely make vibrator produce reverse exciting force by two motor synchronous backward rotations, force sieve nest to drive screen cloth and do lengthwise movement, make material on it because being subjected to the exciting force range of periodically dishing out forward, thereby finish the material screening operation.The advantage that adopts this vibrosieve is that sieving capacity is large.But this vibratory sieve sieve aperture often occurs in the course of the work and is blocked, and leakage of pulverized coal produces the problems such as additional dynamic load, and the vibrosieve equipment volume is large, complex structure, maintenance difficult, maintenance cost are high.
The utility model content
In order to address the above problem, to the utility model proposes and a kind ofly sieve that powder is effective, environmental pollution is little, the granular material rotary screen of easy care simple in structure.
The granular material rotary screen that the utility model provides comprises shell, cylindric screen cloth, rotating shaft, charging aperture and discharging opening,
Described cylindric screen cloth is arranged in the middle of the described shell,
Described rotating shaft is arranged in the center of described cylindric screen cloth, so that described cylindric screen cloth can rotate take described rotating shaft as axle,
The end of described charging aperture is connected in described cylindric screen cloth, so that granular material can rotate with described cylindric screen cloth after entering described cylindric screen cloth, is perhaps spilt described cylindric screen cloth owing to gravity,
Described discharging opening is arranged at the bottom of described shell.
As preferably, described outer casing underpart is provided with ash bucket, and described discharging opening is connected in described ash bucket lower end.
As preferably, described cylindric screen cloth comprises cylindric skeleton, screen cloth and press strip, and described screen cloth is fixed on the described cylindric skeleton by press strip.
As preferably, described rotating shaft one end is connected with motor, and under the drive of described motor, described rotating shaft is rotated.
As preferably, be connected with deceleration device on the described motor.
As preferably, the interval is provided with bracing or strutting arrangement in the described cylindric screen cloth.
As preferably, have high-end and low side thereby described cylindric screen cloth is obliquely installed, described charging aperture end is connected in described high-end, described low side is provided with I kind baffle plate, be provided with a plurality of II kind baffle plates on the inwall of described cylindric screen cloth, described low side is provided with the deslagging chute towards described cylindric screen cloth inside, and described deslagging chute is externally connected to glove compartment.
As preferably, described II kind baffle plate has the space between the direction high-end near described cylindric screen cloth and described cylindric screen cloth.
As preferably, be provided with blow device above the described cylindric screen cloth.
As preferably, described blow device comprises supervisor and nozzle, and described supervisor is along the axial setting of described cylindric screen cloth, and described arrangement of nozzles is on described supervisor.
The granular material rotary screen sieve powder that the utility model provides is effective, environmental pollution is little, easy care simple in structure.
Description of drawings
The cross-sectional schematic of the granular material rotary screen that Fig. 1 provides for the utility model embodiment;
The left view (charging aperture is not shown among the figure) of the granular material rotary screen that Fig. 2 provides for the utility model embodiment.
The specific embodiment
In order to understand the utility model in depth, below in conjunction with drawings and the specific embodiments the utility model is elaborated.
Referring to accompanying drawing 1 and accompanying drawing 2, the granular material rotary screen that the utility model provides comprises shell 2, cylindric screen cloth, rotating shaft 7, charging aperture 1 and discharging opening 18.
Cylindric screen cloth is arranged in the middle of the shell 2.
Rotating shaft 7 is arranged in the center of cylindric screen cloth, so that cylindric screen cloth can rotate take rotating shaft 7 as axle.
The end of charging aperture 1 is connected in cylindric screen cloth, so that granular material can rotate with cylindric screen cloth after entering cylindric screen cloth, is perhaps spilt cylindric screen cloth owing to gravity.
Discharging opening 18 is arranged at the bottom of shell 2.
The present embodiment is applied to blast-furnace coal powder injection technique, and shell 2 is full-closed structures, so both can prevent that coal dust from leaking, and can stop again air to enter into shell 2, thereby, satisfy blast-furnace coal powder injection technique to the requirement of oxygen content restriction.
Wherein, shell 2 bottoms can be provided with ash bucket 17, and discharging opening 18 is connected in ash bucket 17 lower ends, thereby makes discharging more smooth.
Wherein, as a kind of concrete implementation of cylindric screen cloth, cylindric screen cloth can comprise cylindric skeleton 3, screen cloth 4 and press strip 5, and screen cloth 4 is fixed on the cylindric skeleton 3 by press strip 5.
Wherein, rotating shaft 7 one ends can be connected with motor 12, and under the drive of motor 12, rotating shaft 7 is rotated, thereby, the electronic rotation of realization rotating shaft 7.In the present embodiment, motor 12 is fire-proof motor.
Wherein, can be connected with deceleration device 11 on the motor 12, thereby the power output of motor is cut down.In the present embodiment, deceleration device 11 is spindle wheel swinging reducer.
Wherein, can be arranged at intervals with bracing or strutting arrangement in the cylindric screen cloth, thereby, the shape of cylindric screen cloth is better fixed.In the present embodiment, bracing or strutting arrangement is support bar 8.
Wherein, thereby cylindric screen cloth can be obliquely installed and has high-end and low side, and charging aperture 1 end is connected in high-end, and low side is provided with I kind baffle plate 9, is conducive to so axial the taking full advantage of of cylinder shape screen cloth, is conducive to cylinder shape screen cloth in axial taking full advantage of; Be provided with a plurality of II kind baffle plates 6 on the inwall of cylindric screen cloth, granular material can be brought to the working part of cylindric screen cloth, be conducive to cylinder shape screen cloth taking full advantage of at circumferencial direction; Both are in conjunction with the utilization rate that can improve cylinder shape screen cloth, thus the sieving capacity of raising cylinder dress screen cloth.Low side is provided with deslagging chute 15 towards cylindric screen cloth inside, deslagging chute 15 is externally connected to glove compartment 16, thereby, light impurities in the granular material is brought in the deslagging chute 15 by II kind baffle plate 6, thereby, avoid the light impurities in the granular material to leak in the discharging opening, effectively removed screening foreign material out.
Wherein, II kind baffle plate 6 can have the space between the direction high-end near cylindric screen cloth and cylindric screen cloth, thereby the unlikely granular material that affects is spilt cylindric screen cloth under Action of Gravity Field.
Wherein, cylindric screen cloth top is provided with blow device, so that cylindric screen cloth can be purged in real time, avoids the sieve aperture of cylindric screen cloth to be blocked.In the present embodiment, purge gas is N
2
Wherein, as a kind of concrete implementation of blow device, blow device comprises supervisor 13 and nozzle, supervisor's 13 axial settings along cylindric screen cloth, and arrangement of nozzles is on supervisor 13.In the present embodiment, nozzle is evenly arranged on the supervisor 13, thereby, make blow device more even to the purging of cylindric screen cloth.
The granular material rotary screen that the utility model provides is when work, rotated by the cylindric screen cloth of the rear drive of deceleration device 11 decelerations by motor 12, granular material falls in the cylindric screen cloth from charging aperture 1, qualified powder after screening enters in the ash bucket 17, flowed out by discharging opening 18 again, light weight sundries in the granular material is brought deslagging chute 15 into by the II kind baffle plate 6 that is provided with in the cylindric screen cloth, finally enters glove compartment 16, realizes the automatic slag removal function.The blow device that is installed in housing 2 upsides can carry out online timing and purge, and guarantees the unimpeded of cylinder shape screen cloth 4.
The granular material rotary screen sieve powder that the utility model provides is effective, environmental pollution is little, easy care simple in structure.
The above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above only is the specific embodiment of the present utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. a granular material rotary screen is characterized in that, comprises shell, cylindric screen cloth, rotating shaft, charging aperture and discharging opening,
Described cylindric screen cloth is arranged in the middle of the described shell,
Described rotating shaft is arranged in the center of described cylindric screen cloth, so that described cylindric screen cloth can rotate take described rotating shaft as axle,
The end of described charging aperture is connected in described cylindric screen cloth, so that granular material can rotate with described cylindric screen cloth after entering described cylindric screen cloth, is perhaps spilt described cylindric screen cloth owing to gravity,
Described discharging opening is arranged at the bottom of described shell.
2. rotary screen according to claim 1 is characterized in that, described outer casing underpart is provided with ash bucket, and described discharging opening is connected in described ash bucket lower end.
3. rotary screen according to claim 1 is characterized in that, described cylindric screen cloth comprises cylindric skeleton, screen cloth and press strip, and described screen cloth is fixed on the described cylindric skeleton by press strip.
4. rotary screen according to claim 1 is characterized in that, described rotating shaft one end is connected with motor, and under the drive of described motor, described rotating shaft is rotated.
5. rotary screen according to claim 4 is characterized in that, is connected with deceleration device on the described motor.
6. rotary screen according to claim 1 is characterized in that, the interval is provided with bracing or strutting arrangement in the described cylindric screen cloth.
7. rotary screen according to claim 1, it is characterized in that, described cylindric screen cloth is obliquely installed, thereby have high-end and low side, described charging aperture end is connected in described high-end, and described low side is provided with I kind baffle plate, is provided with a plurality of II kind baffle plates on the inwall of described cylindric screen cloth, described low side is provided with the deslagging chute towards described cylindric screen cloth inside, and described deslagging chute is externally connected with glove compartment.
8. rotary screen according to claim 7 is characterized in that, described II kind baffle plate has the space between the direction high-end near described cylindric screen cloth and described cylindric screen cloth.
9. rotary screen according to claim 1 is characterized in that, described cylindric screen cloth top is provided with blow device.
10. rotary screen according to claim 9 is characterized in that, described blow device comprises supervisor and nozzle, and described supervisor is along the axial setting of described cylindric screen cloth, and described arrangement of nozzles is on described supervisor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220470204 CN202909933U (en) | 2012-09-14 | 2012-09-14 | Powdery material rotary screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220470204 CN202909933U (en) | 2012-09-14 | 2012-09-14 | Powdery material rotary screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202909933U true CN202909933U (en) | 2013-05-01 |
Family
ID=48158278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220470204 Expired - Fee Related CN202909933U (en) | 2012-09-14 | 2012-09-14 | Powdery material rotary screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202909933U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825001A (en) * | 2012-09-14 | 2012-12-19 | 中冶南方工程技术有限公司 | Powdery material drum screen |
| CN103900871A (en) * | 2014-03-04 | 2014-07-02 | 河海大学 | Roller type soil aggregate stratified stripper |
| CN104368531A (en) * | 2014-12-07 | 2015-02-25 | 正安县瑞缘茶业有限公司 | Tea leaf sorting device |
| CN108745849A (en) * | 2018-04-25 | 2018-11-06 | 同济大学 | A kind of unpowered sand sifter |
-
2012
- 2012-09-14 CN CN 201220470204 patent/CN202909933U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825001A (en) * | 2012-09-14 | 2012-12-19 | 中冶南方工程技术有限公司 | Powdery material drum screen |
| CN102825001B (en) * | 2012-09-14 | 2015-05-20 | 中冶南方工程技术有限公司 | Powdery material drum screen |
| CN103900871A (en) * | 2014-03-04 | 2014-07-02 | 河海大学 | Roller type soil aggregate stratified stripper |
| CN103900871B (en) * | 2014-03-04 | 2016-08-17 | 河海大学 | A kind of drum-type soil aggregate delamination device |
| CN104368531A (en) * | 2014-12-07 | 2015-02-25 | 正安县瑞缘茶业有限公司 | Tea leaf sorting device |
| CN104368531B (en) * | 2014-12-07 | 2016-06-01 | 正安县瑞缘茶业有限公司 | Tea dry sorting equipment |
| CN108745849A (en) * | 2018-04-25 | 2018-11-06 | 同济大学 | A kind of unpowered sand sifter |
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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: 20130501 Termination date: 20210914 |