CN104368528B - Separator capable of controlling particle size distribution in high-precision mode - Google Patents
Separator capable of controlling particle size distribution in high-precision mode Download PDFInfo
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- CN104368528B CN104368528B CN201410655557.9A CN201410655557A CN104368528B CN 104368528 B CN104368528 B CN 104368528B CN 201410655557 A CN201410655557 A CN 201410655557A CN 104368528 B CN104368528 B CN 104368528B
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Abstract
The invention belongs to the technical field of powder coating classifying equipment and relates to powder particle classifying equipment, in particular to a separator capable of controlling particle size distribution in a high-precision mode. The separator capable of controlling the particle size distribution in the high-precision mode comprises a discharge hopper, a separation chamber, a classification chamber and a feed pipe, and is characterized in that a gap allowing tiny air flow to pass is formed in the connection portion of the discharge hopper and the separation chamber, the periphery of the gap is provided with a pneumatic control assembly communicated with an external air source, and the pneumatic control assembly comprises a pneumatic pipeline, a control valve and an air flow buffer air chamber, wherein the pneumatic pipeline is connected to the gap in the tangent direction, and the air flow buffer air chamber surrounds the gap. The separator greatly increases the controllability over particle size distribution, is high in separation accuracy, increases the content of powder with the particle size smaller than 10 micrometers in the powder, and further improves product quality and the powdering rate.
Description
Technical field
The present invention relates to a kind of powder particle classifying equipoment, the separator of a kind of high-precision Control granularity distribution, belong to powdery paints classifying equipoment technical field.
Background technology
At present, flour mill used by existing powdery paints exists that the size distribution curve of main mill powder particle is relatively wide, scattered, does not concentrates, isolated powder particle undersized, cause in isolated powder particle, the granularity content of powder less than 10 microns is higher, have a strong impact on the quality of finished powder, reduce the powder utilization of product.
Summary of the invention
It is an object of the invention to solve the weak point that above-mentioned prior art exists, it is provided that a kind of scientific structure design is reasonable, effectively reduce the accounting of less than 10 microns powder particles and then the separator of the high accuracy Control granularity distribution of raising end product quality and powder utilization.
The present invention is achieved by the following technical solutions:
The separator of a kind of high-precision Control granularity distribution, is characterized in that, including:
Discharge bucket 1, bottom has discharging opening 1-1, and the powder up to standard after separating is discharged；
Separation chamber 2, is connected to the top of described discharge bucket 1, and inside is provided with and is shaped like the water conservancy diversion vertebra 2-1 in hourglass, and powder is guided the discharge bucket 1 entering bottom by water conservancy diversion vertebra 2-1；
Grading room 3, is set up in the top of described separation chamber 2, is internally provided with clasfficiator 3-1, and top side output connection has discharge gate 6；
Feed pipe 4, runs through described discharge bucket 1 from bottom to top and extends to the inside of described separation chamber 2；
Described discharge bucket 1 offers, with the junction of described separation chamber 2, the gap L that air-flow passes through, the periphery of described gap L is provided with the pneumatic control component being connected with external air source, and described pneumatic control component includes the tangentially connected pneumatic line 5-1 in described gap L, controls valve 5-2 and the air-flow buffer air chamber 5-3 around described gap L；
Described water conservancy diversion vertebra 2-1 has narrower filter cervical region 2-1a, described feed pipe 4 passes described filter cervical region 2-1a, and the internal diameter of described filter cervical region 2-1a is slightly larger than the external diameter of described feed pipe 4, so constitute between described filter cervical region 2-1a and described feed pipe 4 one narrower, fall for powder up to standard, circular passage that ultra-micro powder raises up；
The separator of a kind of high-precision Control granularity of present invention distribution, reasonable in design is simple and direct, feeding manner is changed into bottom side pan feeding by conventional upper feeding, coordinate the pneumatic control component of periphery simultaneously, and there is the hourglass water conservancy diversion vertebra of thin neck passage, on the one hand make conjunction target powder freely drop in the discharge bucket of bottom by action of gravity, on the other hand make granularity superfine powder below 10 microns raise up to the discharge gate discharge at clasfficiator top by the effect of pneumatic control component and clasfficiator impeller.Considerably increasing the controllability of particle size separation, the precision of separation is high, thus improves the content of less than 10 microns powders in powder, improves product quality and powder utilization further.
Accompanying drawing explanation
The cyclone separator arrangement schematic diagram of a kind of high-precision Control granularity of Fig. 1: present invention distribution；
Partial enlarged drawing at M in Fig. 2: Fig. 1；
Fig. 3: the distribution structural representation of pneumatic control component in the present invention；
In the drawings, 1, discharge bucket, 2, separation chamber, 2-1, water conservancy diversion vertebra, 2-1a, filter cervical region, 3, grading room, 3-1, clasfficiator, 4, feed pipe, 5-1, pneumatic line, 5-2, control valve, 5-3, air chamber, 6, discharge gate.
Detailed description of the invention
Referring to the drawings, provide the detailed description of the invention of the present invention, be used for the composition of the present invention is further described.
Embodiment 1
The separator of a kind of high-precision Control granularity distribution of the present embodiment is with reference to Fig. 1-3, including the most interconnective discharge bucket 1, separation chamber 2, grading room 3 and discharge gate 6, the bottom of described discharge bucket 1 has the discharging opening 1-1 that the powder up to standard after separating is discharged, described separation chamber 2 is connected to the top of described discharge bucket 1, inside is provided with and is shaped like the water conservancy diversion vertebra 2-1 in hourglass, and powder is guided the discharge bucket 1 entering bottom by water conservancy diversion vertebra 2-1；Described grading room 3 is set up in the top of described separation chamber 2, is internally provided with clasfficiator 3-1, and top side output connection has discharge gate 6；Described feed pipe 4 runs through described discharge bucket 1 from bottom to top and extends to the inside of described separation chamber 2；Described discharge bucket 1 offers, with the junction of described separation chamber 2, the gap L passed through for small air-flow, the periphery of described gap L is provided with the pneumatic control component being connected with external air source, and described pneumatic control component includes the tangentially connected pneumatic line 5-1 in described gap L, controls valve 5-2 and the air-flow buffer air chamber 5-3 around described gap L；Described water conservancy diversion vertebra 2-1 has narrower filter cervical region 2-1a, described feed pipe 4 passes described filter cervical region 2-1a, and the internal diameter of described filter cervical region 2-1a is slightly larger than the external diameter of described feed pipe 4, so constitute between described filter cervical region 2-1a and described feed pipe 4 one narrower, fall for powder up to standard, circular passage that ultra-micro powder raises up.
Work process and the operation principle of the present invention are as follows:
First, equipment energising is in duty, clasfficiator 3 and pneumatic control component are started working, it is internal that powder sends into separation chamber 2 by the feed pipe 4 of bottom, open control valve 5-2, external air source entered air chamber 5-3 before this by pneumatic line 5-1 and carried out the buffering of air-flow, the then bottom of the water conservancy diversion vertebra 2-1 that uniform air-flow is admitted in separation chamber 2 by gap L, in this process by air-flow size, control to realize raising up of the ultra-micro powder in dropping process is blowed, make the qualified powder that Relative Size is bigger be subject to send in the discharge bucket 1 of gravity free-falling to bottom and by discharging opening 1-1 simultaneously；The raising up of ultra-micro powder rises to the top of water conservancy diversion vertebra 2-1 and passes through the separator impeller within separation chamber 2 top grading room 3 and collect and push to the discharge gate 6 on top and discharge through the filter cervical region 2-1a of water conservancy diversion vertebra 2-1 during blowing.
The quantity of the pneumatic control component in the present invention can set according to the actual needs, and including the size of gap L, the size of air-flow can adjust according to actual needs.
The separator of a kind of high-precision Control granularity of present invention distribution, reasonable in design is simple and direct, feeding manner is changed into bottom side pan feeding by conventional upper feeding, coordinate the pneumatic control component of periphery simultaneously, and there is the hourglass water conservancy diversion vertebra of thin neck passage, on the one hand make conjunction target powder freely drop in the discharge bucket of bottom by action of gravity, on the other hand make granularity superfine powder below 10 microns raise up to the discharge gate discharge at clasfficiator top by the effect of pneumatic control component and clasfficiator impeller.Considerably increasing the controllability of particle size separation, the precision of separation is high, thus improves the content of more than 10 microns powders in powder, improves product quality and powder utilization further.
Claims (1)
1. a separator for high-precision Control granularity distribution, is characterised by, including:
Discharge bucket (1), bottom has discharging opening (1-1), the powder up to standard row after separating
Go out；
Separation chamber (2), is connected to the top of described discharge bucket (1), inside be provided be shaped like in
The water conservancy diversion vertebra (2-1) of hourglass, powder is guided the discharge bucket (1) entering bottom by water conservancy diversion vertebra (2-1)；
Grading room (3), is set up in the top of described separation chamber (2), is internally provided with clasfficiator (3-1),
Top side output connection has discharge gate (6)；
Feed pipe (4), runs through described discharge bucket (1) from bottom to top and extends to described separation chamber (2)
Inside；
Described discharge bucket (1) offers for small air-flow logical with the junction of described separation chamber (2)
The gap (L) crossed, the periphery of described gap (L) is provided with the pneumatic control being connected with external air source
Assembly, described pneumatic control component include the tangentially connected pneumatic line in described gap (L) (5-1),
Control valve (5-2) and the air-flow buffer air chamber (5-3) around described gap (L)；
Described water conservancy diversion vertebra (2-1) has narrower filter cervical region (2-1a), and described feed pipe (4) is worn
Cross described filter cervical region (2-1a), and the internal diameter of described filter cervical region (2-1a) is more than described feed pipe (4)
External diameter, and then constitute between described filter cervical region (2-1a) and described feed pipe (4) one thin
Circular passage narrow, that raise up for powder up to standard whereabouts, ultra-micro powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410655557.9A CN104368528B (en) | 2014-11-17 | 2014-11-17 | Separator capable of controlling particle size distribution in high-precision mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410655557.9A CN104368528B (en) | 2014-11-17 | 2014-11-17 | Separator capable of controlling particle size distribution in high-precision mode |
Publications (2)
| Publication Number | Publication Date |
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| CN104368528A CN104368528A (en) | 2015-02-25 |
| CN104368528B true CN104368528B (en) | 2017-01-11 |
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| CN201410655557.9A Active CN104368528B (en) | 2014-11-17 | 2014-11-17 | Separator capable of controlling particle size distribution in high-precision mode |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017047812A1 (en) * | 2015-09-17 | 2017-03-23 | 国立研究開発法人産業技術総合研究所 | Device and method for sorting objects |
| CN105880161B (en) * | 2016-04-07 | 2017-10-31 | 湘潭大学 | A kind of superfine powder jet classifying method of purification and device |
| CN112495800B (en) * | 2020-12-17 | 2021-11-30 | 西安科技大学 | Composite screening device for desert sand |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1248066B (en) * | 1991-06-17 | 1995-01-05 | Italcementi Spa | DYNAMIC SEPARATOR FOR POWDERED MATERIALS, IN PARTICULAR CEMENT AND PLANT THAT INCLUDES IT |
| DE4124416A1 (en) * | 1991-07-23 | 1993-01-28 | Krupp Polysius Ag | DEVICE AND METHOD FOR CRUSHING GROUND DIFFERENT GRAIN |
| CN2147900Y (en) * | 1993-05-15 | 1993-12-01 | 王宝芬 | Supersonic airstream superfine milling classer |
| CN201441979U (en) * | 2009-06-10 | 2010-04-28 | 山东电力研究院 | Axial coarse powder separator |
| CN203108801U (en) * | 2013-03-11 | 2013-08-07 | 东莞市东恒环保科技有限公司 | Feed divider |
| CN203610316U (en) * | 2013-11-29 | 2014-05-28 | 上海益非亚粉体技术设备有限公司 | Dynamic classifier |
| CN203695426U (en) * | 2014-01-07 | 2014-07-09 | 咸阳非金属矿研究设计院有限公司 | Ultrafine powder airflow classifier |
| CN204220478U (en) * | 2014-11-17 | 2015-03-25 | 王树波 | A kind of separator of high-precision Control granularity distribution |
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