CN201799412U - Rotor-free classifier - Google Patents
Rotor-free classifier Download PDFInfo
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- CN201799412U CN201799412U CN2010205278152U CN201020527815U CN201799412U CN 201799412 U CN201799412 U CN 201799412U CN 2010205278152 U CN2010205278152 U CN 2010205278152U CN 201020527815 U CN201020527815 U CN 201020527815U CN 201799412 U CN201799412 U CN 201799412U
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- fine powder
- rotor
- grader
- graded region
- coarse powder
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Abstract
A rotor-free classifier comprises a fine powder classifying area and a coarse powder classifying area. The fine powder classifying area includes a feeding bent pipe, a fine powder classifying bin, air guide plates, air holes and a product outlet, and the coarse powder classifying area includes a coarse powder classifying bin, a return groove, a secondary air inlet and a coarse powder outlet. The feeding bent pipe is S-shaped, the air guide plates are arranged with elevation angles radially, an air inlet is arranged between each two air guide plates, the fine powder classifying bin is communicated with the coarse powder classifying bin via the return groove, powder is sucked from the feeding bent pipe under suction effect of an induced draft fan and decelerated and dispersed evenly in an S-shaped buffer area, and passes through the air guide plates to form vortex, so that fine powder is spilled out of the product outlet along with an ascending airflow while coarse powder enters the coarse powder classifying bin, and the fine powder carried in the coarse powder is lifted into the fine powder classifying bin to be classified again from the return groove under 'flushing' effect of secondary air. The rotor-free classifier without motor or classifying wheel reduces cost for manufacturing, running and maintenance, and simultaneously effectively prevents pollution to products and improves product quality.
Description
Technical field
The utility model relates to a kind of grading plant, particularly the grading plant of processing as powder body material in the new material industry.
Technical background
Grader is called powder concentrator again, and it is the device that utilizes the eddy current centrifugal principle that the powder of certain particle diameter in the granular material is separated.Grader is the key equipment in the powder system of processing.
Existing grader all belongs to the dynamic classification machine, has a rotor or a plurality of rotor.The single rotor grader has a grading wheel, with vertical or horizontal being installed in the classification storehouse.Grading wheel has a motor as power, directly drives or passes through belt transmission.During the grading wheel rotation material that enters in the classification storehouse is carried out classification.The granularity of product can be by regulating grading wheel rotating speed and carry the air quantity and the blast of the air-introduced machine of powder to realize.In order to improve the classification efficiency of grader, in the design of the stage casing of grader secondary wind air inlet is arranged, when surrounding air is directly sucked from secondary wind air inlet, the meal that falls in the classification process is carried out " flushing ", graded region is arrived in the fine powder blowback of wherein carrying, reach the purpose of classification once more, thereby improved classification efficiency.
Many rotors grader is in a classification storehouse a plurality of grading wheels to be installed, and each grading wheel all has a motor-driven and single rotor grader to have same classification principle.
Single rotor grader or many rotors grader and a dust-precipitator, a high-pressure suction fan form a cover hierarchy system.
No matter be single rotor grader or many rotors grader, all need motor to drive, and motor is generally between 12KW to 180KW, power consumption is big.Grading wheel is the critical piece of dynamic classification machine, and designing requirement is very high, the cost of manufacture height, installation accuracy requires high, and, grading wheel in high speed rotating with the material collision friction, it is very fast to wear and tear, especially to the classification of quartzy powder, often will wear and tear in one month, need to change grading wheel, the wearer that falls in the grading wheel wearing and tearing is blended in the powder, cause contamination of products, influenced the quality of product.
Cut down the consumption of energy is the problem that the powder processing industry is concerned about the most always, also is problem demanding prompt solution.High energy consumption just means high carbon emission and high operating cost, a kind of motor that neither needs, the grader that does not also need grading wheel, the problem that can solve energy-saving and emission-reduction, low cost movement effectively and improve the quality of products again, the grader that grading effect can compare favourably with the dynamic classification machine of band rotor is required in the industry.
The utility model content
In order to solve above-mentioned deficiency, the utility model provides a kind of no rotor grader.
A kind of no rotor grader, comprise fine powder graded region and meal graded region, the fine powder graded region is located at the top of meal graded region, connect by feed chute between the two, be provided with the radial wind deflector that is the inclination angle in the fine powder graded region, the meal graded region is provided with meal classification storehouse and secondary wind inlet, the delivery air that provides when air-introduced machine forms eddy current when carrying powder through the wind deflector of fine powder graded region, powder big material powder under centrifugal action sinks, enter meal classification storehouse from feed chute, the subparticle powder rises with air-flow and enters a product mouthful gathering-device by products export, under the subnormal ambient that air-introduced machine provides, ambient windstream sucks from the secondary wind inlet, and meal is carried out " flushing ", is carried at subparticle in the bulky grain powder and blows again from feed chute and get back to the classification again of fine powder graded region.
Described fine powder graded region also is provided with some wind deflectors, and every wind deflector is the center of circle with the products export, is radial arrangement with angle, surrounds a fine powder classification storehouse between the wind deflector after the arrangement.
Be provided with air inlet between adjacent two wind deflectors of described wind deflector.
Described fine powder graded region also comprises the charging bend pipe, and this charging bend pipe is S-shaped, and each crook forms a buffering area.
The top of described each air inlet all is provided with pore.
Described fine powder graded region and meal graded region are separated by base plate, are provided with feed chute around the base plate.
Described secondary wind inlet is provided with adjusting device, and the air quantity size of secondary wind inlet is regulated.
Powder is entered by the charging bend pipe under the swabbing action of air-introduced machine, and slow down speed at buffering area, uniformly dispersing, because wind deflector is the center of circle with the products export, the radial arrangement that is inclination, constitute air inlet between adjacent two wind deflectors, material stream forms eddy current when passing wind deflector, fine powder is with the ascending air products export of overflowing, meal falls into feed chute after centrifugal direction is dished out, enter meal classification storehouse from feed chute, ambient windstream imports from secondary wind inlet nature under the effect of negative pressure, and the meal under falling is carried out " towards Xian ", the fine powder that is carried in the meal is blown go back to fine powder classification storehouse from feed chute, get back in the products export again.
The utility model has changed the structure of traditional single rotor and many rotors grader, no motor, no grading wheel.By wind deflector eddy current is optimized in the classification process, adds and regulate the flushing air-flow effectively, and the rapid discharging of meal, just can satisfy varigrained classification requirement, can guarantee does not have oversized particles in the product, and the summit cutting is clear.Performance can compare favourably with the grader of traditional band rotor.This apparatus structure is simple, has saved steel, has reduced manufacturing cost, has saved motor, has reduced operating cost.Be convenient to adopt the high-abrasive material protection, reduced maintenance cost, also prevented pollution simultaneously effectively, improved product quality, therefore be worthy to be popularized product.
Description of drawings
Fig. 1 is the schematic diagram of no rotor grader;
Fig. 2 is another schematic diagram of no rotor grader.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described.
The utility model provides a kind of no rotor grader, comprise fine powder graded region 1 and meal graded region 2, fine powder graded region 1 is arranged on the top of meal graded region 2, fine powder graded region 1 comprises charging bend pipe 3, (the utility model is that example illustrates with 4 wind deflectors for fine powder classification storehouse 4 and some wind deflectors 5, be not limited to 4 wind deflectors), charging bend pipe 3 is provided with S shape buffering area 31, the top of fine powder graded region 1 is provided with products export 6, wind deflector is the center of circle with products export 6, the radial arrangement that is inclination, every wind deflector front end arrives the distance in the center of circle all less than the distance of wind deflector rear end to the center of circle, therefore, the 1st wind deflector 51 and charging elbow internal wall 32, the 1st wind deflector 51 and the 2nd wind deflector 52, the 2nd wind deflector 52 and the 3rd wind deflector 53, form air inlet 71 respectively between the 3rd wind deflector 53 and the 4th wind deflector 54, air inlet 72, air inlet 73, air inlet 74, wind deflector is connected and fixed with the upper and lower plates of bolt and fine powder graded region 1 respectively at two ends up and down, the top of each air inlet is provided with pore 91, have feed chute 9 on the base plate 8 in fine powder classification storehouse 4, fine powder graded region 1 is communicated with meal graded region 2.A support 10 is arranged in the meal classification storehouse, be used to support base plate 8, the below of meal graded region 2 is provided with secondary wind air inlet 21 and meal outlet 22, and the big I of air inlet requires to regulate according to classification.
Arrange and can control the granularity and the production capacity of graded product by changing wind deflector to the control of air quantity.
The utility model effect:
With single rotor, the contrast of many rotors grader, no rotor grader has following characteristics and advantage:
1. do not need motor, meet low-carbon (LC), environmental requirement.
For example: 10 microns of classifying capability D97,300 kilograms no rotor grader per hour, the classifying capability that is equivalent to the single rotor grader of a diameter 315mm, the latter's motor are the powder that 15kW. that is to say 300 kilograms of D9710 microns of every production, can save powder processing factory that produces 30000 tons per year of power consumption 15kWh., can save power consumption 1 in 1 year, 500,000kWh., so the utility model belongs to Green Product, meet the energy-saving low-carbon requirement, saved operating cost simultaneously widely.
2. do not have grading wheel, saved manufacturing cost.
The core of single rotor and many rotors grader is a grading wheel.Under situation reasonable in design, the fineness of product and quality guarantee by the machining accuracy of grading wheel, single rotor and many rotors grader all have very high requirement to material, machining accuracy and the cooperation of grading wheel, exactly do not saved this key component and there is the rotor grader, in addition, the material usage of no rotor grader less than equal single rotor grader 1/2. therefore, can save manufacturing costs such as raw material, processing charges widely.
3. simple in structure, be convenient to adopt various high-abrasive material protections.
Have the grader of grading wheel because strong impact and friction take place in rotation at a high speed when touching material.Particularly evident when the classification hard material, grading wheel will be worn in very short time, to such an extent as to can't use, its result not only maintenance capacity is big, causes production cost to improve, and main is because the micro mist after the wearing and tearing enters in the product, pollute product, directly influenced the purity and the quality of product.And still do not have highly effective method for the Wear-resistant Treatment of grading wheel at present.
Because no rotor grader is simple in structure, no dynamic component, therefore be easy to adopt various preventing-abrasion methods to protect effectively, maintenance capacity is low, service life factory, can reach iron-free and divide a grade effect, guarantee product purity, this point is particularly important for processing electron level high-purity quartz powder and chemical industry, food, medicine etc.
4. grading effect can match in excellence or beauty with band rotor grader.
No rotor grader and single rotor, many rotors grader have same grading effect and effectiveness of classification, and product granularity can be regulated between the 5-120 micron.Hourly output can be by tens kilograms to several tons.
5. multipurpose.
No rotor grader can be the same with single rotor or many rotors grader, use separately or and various milling apparatus such as ball mill form closed cycles, various powder products are carried out classification.No rotor grader can also be used as pre-classification.Abrasive product is carried out pre-classification, can improve the effect of secondary classification, minimizing is to the wearing and tearing of secondary classifying equipoment, can also improve simultaneously the grinding efficiency of on-line grinding equipment, in addition, it can also be used for the product dedusting, promptly dust meticulous in the product is removed, and makes product reach the size distribution of specific (special) requirements.
Use the product granularity analysis report of the utility model classification to see Table 1
Table 1:
Though the utility model with embodiment openly as above; right its is not that any person with usual knowledge in their respective areas is not in breaking away from spirit and scope of the present utility model in order to qualification the utility model; when doing a little change and retouching, all should belong to protection domain of the present utility model.
Claims (7)
1. no rotor grader, comprise fine powder graded region and meal graded region, the fine powder graded region is located at the top of meal graded region, is connected by feed chute between the two, be provided with some radial wind deflectors that are the inclination angle in the fine powder graded region, the meal graded region is provided with meal classification storehouse and secondary wind inlet.
2. no rotor grader as claimed in claim 1 is characterized in that every wind deflector is the center of circle with the products export, is radial arrangement with angle, and the mid portion that wind deflector surrounds is fine powder classification storehouse.
3. no rotor grader as claimed in claim 2 is characterized in that, is provided with air inlet between adjacent two wind deflectors.
4. no rotor grader as claimed in claim 1 is characterized in that described fine powder graded region also comprises the charging bend pipe, and this charging bend pipe is S-shaped.
5. no rotor grader as claimed in claim 1 is characterized in that the top of each air inlet is provided with pore.
6. no rotor grader as claimed in claim 1 is characterized in that described fine powder graded region and meal graded region are separated by base plate, is provided with feed chute around the base plate.
7. no rotor grader as claimed in claim 1 is characterized in that the secondary wind inlet is provided with adjusting device, and the air quantity size of secondary wind inlet is regulated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205278152U CN201799412U (en) | 2010-09-14 | 2010-09-14 | Rotor-free classifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205278152U CN201799412U (en) | 2010-09-14 | 2010-09-14 | Rotor-free classifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201799412U true CN201799412U (en) | 2011-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205278152U Expired - Fee Related CN201799412U (en) | 2010-09-14 | 2010-09-14 | Rotor-free classifier |
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| Country | Link |
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| CN (1) | CN201799412U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784757A (en) * | 2012-07-27 | 2012-11-21 | 安徽理工大学 | Efficient airflow classification fine-coal remover for power coal before selecting |
| CN107309170A (en) * | 2017-08-25 | 2017-11-03 | 长沙深湘通用机器有限公司 | Many grade-classification machines |
| CN107309174A (en) * | 2017-08-25 | 2017-11-03 | 长沙深湘通用机器有限公司 | Sorting unit |
| CN107350162A (en) * | 2017-08-25 | 2017-11-17 | 长沙深湘通用机器有限公司 | Multi-product multi-stage classifier |
| CN110238059A (en) * | 2019-07-06 | 2019-09-17 | 四川玉塑新材料科技有限公司 | A kind of calcium carbonate powder multiclass classification stage division |
-
2010
- 2010-09-14 CN CN2010205278152U patent/CN201799412U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784757A (en) * | 2012-07-27 | 2012-11-21 | 安徽理工大学 | Efficient airflow classification fine-coal remover for power coal before selecting |
| CN102784757B (en) * | 2012-07-27 | 2014-05-07 | 安徽理工大学 | Efficient airflow classification fine-coal remover for power coal before selecting |
| CN107309170A (en) * | 2017-08-25 | 2017-11-03 | 长沙深湘通用机器有限公司 | Many grade-classification machines |
| CN107309174A (en) * | 2017-08-25 | 2017-11-03 | 长沙深湘通用机器有限公司 | Sorting unit |
| CN107350162A (en) * | 2017-08-25 | 2017-11-17 | 长沙深湘通用机器有限公司 | Multi-product multi-stage classifier |
| CN110238059A (en) * | 2019-07-06 | 2019-09-17 | 四川玉塑新材料科技有限公司 | A kind of calcium carbonate powder multiclass classification stage division |
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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 |
Granted publication date: 20110420 Termination date: 20140914 |
|
| EXPY | Termination of patent right or utility model |