JPS583680A - Centrifugal separator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] This book relates to a centrifugal separator. -0
814074451k-II)
#Ii, a mixture of particles of different sizes and/or shapes and/or different specific gravity is mixed with coarse grains (411 constant limit 1 pole or higher) and fine grains (41 constant @ noboru self) The grains are introduced from above into the sorting 11 (the annular m1 between the guide plate 7 range and the sorting rotor), and at the same time from the outside the guide plate The sorting air enters the sorting room El1 through the 7-range, and the sorting air moves in a single vortex to guide the particles to their respective movement paths.In the sorting room, the particles face resistance forces that oppose each other in the radial direction. and centrifugal force. And for a given radial and axial air velocity, there is a critical particle size such that both forces are the same. Coarse grains larger than the critical size The particles then reach the coarse particle outlet at the lower end of the sorting chamber sooner or later. Small particles, on the other hand, are guided by the sorted air;
This air passes through the filter of the sorting vane and flows inward #IC, and the zero-order KM particles that are sucked into the fine particles and sorting air outlet that read in the axial direction into the inner part of the sorting vane are separated from the sorted air. ,
The sorted air can then be recirculated again into the sorted air population. The purpose of such a separator is, first of all, to obtain as fine particles as possible in a narrow particle size range. #IcIa small particles are often required as fillers in plastics, single-wheel drive tires, pigments and paints, as coatings on paper or paper.

The coarse grains are used for other purposes or are ground into single grains.The grains for each of the above purposes must be produced in relatively large quantities at the lowest possible cost. However, with the conventional separator of this type, which has one fine particle/selective air outlet, the raw material capacity is relatively small.The production capacity is only 1 minute. The great strength of 1iti@i is that it depends on the diameter and diameter of the sorting rotor, and therefore the area where the sorting takes place. In turn, the length of one sorting rotor thK is also limited; Controlled by the difference in radial drift. This arrogant flow velocity depends on the suction pressure at the outlet, that is, the negative pressure.
This suction pressure is maximum at the outlet and is reduced at the opposite end.The object of the present invention is to provide a separator of this kind with a greater ability to generate teeth, preferably with a limit particle Size 10#m~2
According to the invention, this object is achieved by connecting one fine grain and sorting air outlet to each end of the sorting rotor.

Fine and small grains / The grain with two sorting air outlets allows the sorting blade to be made longer than before, and therefore the grain that increases the capacity of the raw material / The longer the sorting rotor, the longer the sorting rotor. This provides a long region of relatively even, steady flow that is undisturbed by movement of the end of the sorting rotor, thereby providing effective, uniform sorting. The diameter/length ratio of the sorting rotor is 1:t5-
Preferably, the ratio is 1:4. Since there are fine particle/separated air outlets at both ends, the outlet cross-sectional area is 2 times h and t, and therefore, despite the increased production capacity, the flow rate is small.

On the other hand, conventionally, when the flow velocity is high, the small particles S are strongly thrown in one stroke, so the particles adhere to the wall i1.
4Ik, this is the case in the case of a tension-cut fine-grained layer. As a result, the flow condition deteriorates afterwards, resulting in a decrease in production capacity. °
) sometimes breaks up and mixes with the fine grains, resulting in the fine grains becoming loose and dripping, and also causing extremely high mwAs. According to this proposal, such adhesion of fine particles can be prevented by enclosing the two fine particle/separating air outlets in the vicinity of the rotor in a single cooling chamber. The cooled particles are prevented from adhering to the cooled particles.
It is advantageous to have sorting ports on both sides.This allows the bearing to cool down at the same time, which contributes to operational safety and extends the life of the machine. In addition, one labyrinth is applied to the front end of each sorting rotor, but this
Each is connected to one cooling air chamber through
The cooling air leaves one labyrinth backing at a time from the outside to the inside, so that this backing is also cooled, but no special air is needed at all. Backing is DB-M8
1757582 K: Therefore, in addition to the known O8, a support disk with axial through holes in the round, which holds the segments of the sorting rotor, is loosely fitted on the axial rod.
In this case, the rotor is not fixed at its ends by a stone, but also by a supporting disk between its ends.

Finally, one annular groove is provided at the end of one container facing the coarse particle outlet for feeding the particles to be sorted into the sorting mK. can be produced evenly.

In order to explain in more detail, below, with reference to the drawings, a concentric circle is shown with reference to the drawings. Cylindrical container 111
With b1 KFi in this container, the sorted air is shown by arrow 2
It flows evenly in the direction of 0 across the entire axial height K.
A guide 11i7 is provided within the container and is spaced radially from the container jacket.
A segment flange 11 of the sorting rotor 10 is provided radially spaced apart from the flange 9.
The granules to be sorted are fed from above into the sorting chamber 23 between the flange 11 and the flange 11. Also, on the upper wall of the chamber, there is one annular # for feeding the granules. I22 is provided, and this S has a connecting pipe 7. The opposite end, ie the lower end KF! , a funnel-shaped coarse particle outlet 8 is provided at both ends of the sorting rotor, and a tube-shaped fine particle/small particle sorting air outlet 3 and 4 are provided at both ends of the sorting rotor. Internal diameter KP 1%i O Outlets 5.4KF! are each surrounded by a cooling air chamber 17.18, through which cooling air is introduced through the connection 19. This allows these outlets Km small particles to adhere Cooling air chamber 17.111C
In this case, the rotor shaft rod 1 passes through one outlet 5.4.
11111 is also pivoted at both ends to the bearings 5.6. Ll
Therefore, since this bearing is also cooled in the same way, O cooling air chamber 1y, 18 d high pressure K lk cannot be penetrated into this (see the arrow in the hole). ) 0 drive control ■ - 0 driven by the belt pulley 9-12 The two ends of the sorting rotor 10d 1!5.14 are the output rotor 5
, 4 One opening is connected to K@@.

At each connection between the sorting rotor and the container there is a backing 15,14, which backing is made in the form of a flat plate or a labyrinth. Cooling air $27f is introduced from the cooling air chamber 17.18 and closes between the screening @25 and the outlet 3.4 (FIG. 3, arrow 19).

Sorting low! A support disk 24 having a through hole in the axial direction is shrink-fitted to the shaft rod 10 a K ij of -, and on the outside 11 of one end of the rotor, there is a ◆ eyelid tongue 25.2.
6 is applied @

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of a separator according to the invention. 1112m is a cross-sectional view of this separator on the left, and a plan view on the right.The BS diagram shows the part marked 11!11, that is, the labyrinth backing that introduces cooling air from the cooling chamber. 0 showing an enlarged section lis 1--container, 2--selected air intake, 3.4--
・Small particles・Selected air outlet, 7...Connection/(Eve, 8・
... Coarse grain outlet, 9... Guide plate 7 range, 10...
・Selection rotor, 11...Segmentation flange, 17
, 18-...Cooling air chamber, 25.26-・Patent creator Omuya Gesell7 Mitpequellenchtel Hafrang (and 1 other person) Procedural amendment form c) November 17, 1982 2 , 孭-name centrifugal separator 3, relationship with the amended person case 7 tsun to the patent applicant! 5. Date of amendment order: October S, 1975 + 1 (mostly sent date: January 1982)
0 force 27th) 6. Subject of correction 7. @Correct contents (Book 13Ii attached) will be corrected. (2) Submit a power of attorney and a translation of paragraph 7. -) Statement of error in drawings (no change in content) 0 brass (1) amendment request form for attached documents 1 copy

Claims (1)

[Scope of Claims] (1) In a 4-centrifugal separator having a container that stands upright in a cylindrical shape and is equipped with an air intake in the direction of the cutting line, KFJ inside the container, KFJ outside the container, A large poid plate is provided with two flange 1 space apart from the cover in the half-value direction and integrated with one container centering on the container outer cover, and one flange is provided in the radial direction <ms toward the inside of the container. A sorting rotor is provided, and the sorting rotor! - is provided with a segment 7 flange forming one casting in the half-value direction, and in the sorting chamber present at the junction between the double plate flange and the rotor, the grains to be sorted are placed above the sorting chamber. Open the intake port of the body, and below that, open the port for introducing 7L of large fox particles from the sorting chamber, connect the outlet of the sorted air carrying the fine particles to the decoration of the sorting rotor, and Let the diameter of #t be the same as the diameter of the different rotor, and then use the above-mentioned screening M.
The tl air intake port and the guide plate flange have the same axial length as the sorting rotor, and one fine particle-sorting air outlet is connected to both ends of the sorting rotor. In the centrifugation aS of claim 1 ff1lE, the ratio of the diameter to the length of the separate opening is 1stS&1stS 0 (m) 41 In the centrifugal separation S according to claim 1 or 2, the two fine particle-sorting air outlets are each surrounded by one amount of cooling air in the vicinity of the sorting rotor. (4) In the centrifugal separator according to claim S, the bearings of the two shaft-mounted sorting rotor shafts each have a 1# characteristic.
A system characterized by having one cooling air installed inside the vehicle. φ) 41 The centrifugal separation @KsI according to any one of claims 1 to 4, wherein one labyrinth backing is installed in the back of the sorting rotor, and the labyrinth backing is connected to one of the cooling air volumes through one groove. The centrifugal separator described, characterized in that a support disk with axial through holes is shrink-fitted onto the shaft for holding the segments of the sorting rotor. In the centrifugal separator according to any one of claims 1 to 6, the granules to be sorted are placed at the end of the container opposite to the coarse particle outlet. Annular JIIIi for delivery
The fact that IA is provided is 4I mold〇