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公开(公告)号：JP2001179134A
公开(公告)日：2001-07-03
申请号：JP36734199
申请日：1999-12-24
发明人： AKIYAMA SATOSHI , HAMADA YOSHIAKI , SHINODA EIJI , YOSHIDA HIDETO
IPC分类号： B04C5/181
摘要： PROBLEM TO BE SOLVED: To provide a cyclone type classifying device in which a separation diameter is varied in wide range while suppressing the deterioration of classifying accuracy. SOLUTION: In the classifying device in which powder-containing gas stream is introduced from the upper part of a cyclone tower 5, and fine powder is discharged upward by actuating weak negative pressure at the central part of the cyclone tower 5 and coarse powder is discharged from a coarse powder discharge port 5021 at the lower end of the cyclone tower 5 and recovered at a lower coarse powder storage tank 8, a conical shaped inside guide 9 is placed oppositely to and under the coarse powder discharge port 5021 to form a coarse powder discharge passage 13 in torus, and also a cover 11 is provided from the opening edge of the coarse powder discharge port 5021 to the range opposite to the inclined surface 901 of the inside guide 9, and the cover 11 has an outside guide 1111 provided in parallel within the range opposite to the conical inclined surface 901 of the inside guide 9, and the torus coarse powder discharge passage is formed long by the opposition of the inclined surface 1112 of the outside guide and the inclined surface 901 of the inside guide 9.
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公开(公告)号：JP2001224983A
公开(公告)日：2001-08-21
申请号：JP2000038623
申请日：2000-02-16
发明人： AKIYAMA SATOSHI , HAMADA YOSHIAKI , YOSHIDA HIDETO
IPC分类号： B04C5/02
摘要： PROBLEM TO BE SOLVED: To provide a new dust collecting device capable of performing dust collection (capture) in high efficiency. SOLUTION: In a cyclone type dust collecting device in which dust is precipitated downward in the cyclone tower while turning the dust by blowing dust- containing air flow to a cyclone tower 1 from an air flow introducing port 104 of an upper part body cylinder 101 along an inner peripheral wall and the air flow is discharged by the weak negative pressure applied from the upper part side to the central part of the cyclone tower, a spiral curved pipe 403 is connected to a horizontal pipe 404 connecting to the air flow introducing port 104 from a position higher than that of the air flow introducing port 104, and the motion in a normal line direction identical with turning air flow in the cyclone tower is given to the dust and dust-containing air flow is blown to the cyclone tower.
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公开(公告)号：JPH09201543A
公开(公告)日：1997-08-05
申请号：JP27217996
申请日：1996-10-15
IPC分类号： B02C17/16 , B02C13/06 , B02C13/18 , B02C13/282 , B02C17/22
摘要： PROBLEM TO BE SOLVED: To efficiently produce a crushed product of a small particle size which is free from the contamination of coarse particles and has sharp particle size distribution by slanting the grooves of a rotor and/or a liner in the direction to hinder the flow of a material to be crushed to a parallel with a rotary shaft. SOLUTION: In a mechanical crusher 10, grooves are formed on the outer surface of a rotor 16 and/or the inner surface of a liner 18. The grooves are formed by slanting in the direction to hinder the flow of a material to be crushed to the parallel direction to a rotary shaft 12. The passing velocity toward a discharge opening 22 of crushed particles which entered the clearance between the rotor 16 and the liner 18 is reduced, and the particles are scattered to the supply port side by the recessions of the grooves of the rotor 16. Accordingly, the generation of an excessive vortex is prevented to prevent excessive collision and crushing, and the long retention time of the particles decreases the particle size and prevents the generation of coarse particles at the same time.
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公开(公告)号：JPH09173985A
公开(公告)日：1997-07-08
申请号：JP34200195
申请日：1995-12-28
发明人： YAMADA YUKIYOSHI , AKIYAMA SATOSHI , ICHIKAWA TAKAHIRO , OKABE HIDEO , IIJIMA HIDEYUKI , IWATA YUKIO
IPC分类号： B07B7/083
摘要： PROBLEM TO BE SOLVED: To drop almost the whole powder inside a powder introducing port without carrying the powder outside from the powder introducing port by supplying a high pressure air to an air introducing passage formed by forming a groove in the inside part of a casing and blowing air around the powder introducing port to increase atmospheric pressure. SOLUTION: At the time of charging the powder in a powder classifier 1 from a powder charging port 23, the powder is dispersed in the surroundings on the upper surface of a classifying rotor 4 and drops to the inside of the classifying rotor 4 from the powder introducing port 10 of the upper surface of the classifying rotor 4. In such a case, a partition plate 5 is fitted to the outside of the powder introducing port 10 and air is supplied to the outer periphery of the parting plate 5 to make the pressure higher than that in the inside of the powder introducing port 10. Thereby, the powder is hardly carried outside the parting plate 5, the whole powder drops inside the powder introducing port 10 and the deterioration of classifying accuracy and the clogging of the powder between the classifying rotor and the casing are not generated.
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公开(公告)号：JPH08229510A
公开(公告)日：1996-09-10
申请号：JP4188895
申请日：1995-03-01
摘要： PURPOSE: To provide a powder classifier without the classified powder being deposited on the inner face of the outer wall of the classifier and enhanced in a recovery rate. CONSTITUTION: A casing 1 is provided with a powder inlet 3 at the center of the upper face and an air inlet around the outer wall. A classifying rotor 4 having an air circulating cavity extending from the circumferential part toward the axial center is provided in the casing and made rotatable by a vertically rotating shaft 8. An annular passage 13 is provided outside the rotor 4 and connected to a coarse powder outlet. Further, an air blowing chamber 33 is formed outside the annular passage through a partition wall 30 having a fine hole, an air pipe 35 is connected to the air blowing chamber 33, and air is sent under pressure and introduced into the annular passage 13 through the partition wall 30. Consequently, the coarse powder sprung out from the rotor is not deposited on the partition wall due to the air delivered through the partition wall, the fine powder is surely sent to a fine powder outlet, and a high recovery rate is realized.
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公开(公告)号：JPH0754005A
公开(公告)日：1995-02-28
申请号：JP21926893
申请日：1993-08-12
IPC分类号： B22F1/02 , C09C3/00 , C23C14/22 , C23C16/44 , C23C16/442 , C23C16/448
摘要： PURPOSE:To coat the surfaces of fine core particles with a coat forming material and provide a coating device. CONSTITUTION:When core particles are put in a coating space and brought into contact with a coat forming material formed through a vapor phase or having the state of a vapor phase to produce coated particles, core particles having =90%) are dispersed at >=70% dispersity and brought into contact with the coat forming material.
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公开(公告)号：JPH0753268A
公开(公告)日：1995-02-28
申请号：JP21927093
申请日：1993-08-12
发明人： YOSHIDA HARUO , KUME MASAICHI , YAMADA YUKIYOSHI , FUYUKI TADASHI , AKIYAMA SATOSHI , HAMADA YOSHIAKI , KURODA EISUKE , NABEYA TADAKATSU , SUMIDA YUKIO , KIMURA KENICHI
IPC分类号： B01J2/00 , B01J2/16 , C01B21/064 , C04B35/626 , C04B41/87 , C23C14/06
摘要： PURPOSE:To produce a high performance coted high pressure type boron nitride sintered body having uniform, dense, firmly sintered and highly controlled fine structure. CONSTITUTION:Powdery core particles consisting of fine particles of the high pressure type boron nitride having =70% are allowed to come into contact with or to collide with a coating film forming material precursor to coat the surface of each of the core particles with the coating film forming material. The coated high pressure type boron nitride particles thus obtained or a mixture contg. them are sintered under a >=2000 MPa superhigh pressure and at a high temp.
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公开(公告)号：JPH0753263A
公开(公告)日：1995-02-28
申请号：JP21927593
申请日：1993-08-12
发明人： YOSHIDA HARUO , KUME MASAICHI , YAMADA YUKIYOSHI , FUYUKI TADASHI , AKIYAMA SATOSHI , HAMADA YOSHIAKI , KURODA EISUKE , NABEYA TADAKATSU , SUMIDA YUKIO , KIMURA KENICHI
摘要： PURPOSE:To obtain a high performance coated diamond sintered compact having a uniform, dense, tightly sintered and highly controlled microstructure. CONSTITUTION:Core particles made of diamond fine particles having 10mum average particle diameter in the frequency distribution on volume basis are dispersed in gas at >=70% dispersity beta and collided against or brought into contact with a precursor of a coat forming material to coat the surfaces of the separate particles with the coat forming material and the resulting coated diamond is sintered with a binder under the conditions of
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公开(公告)号：JPH0523575A
公开(公告)日：1993-02-02
申请号：JP18269691
申请日：1991-07-23
发明人： YAMADA YUKIYOSHI , MURATA HIROSHI , FUYUKI TADASHI , AKIYAMA SATOSHI , HAMADA YOSHIAKI , KURODA EISUKE , MORIYAMA HIDEO
摘要： PURPOSE:To install the rotary shaft of a roll brush with needle-like members implanted collectively in a radial pattern, diagonally to the rotary shaft line of a screw feeder, then allow the tips of the needlelike members to follow the outlet of a pipe in a rotary motion and thereby scatter fine powder efficiently to effect a continuous and quantitative supply. CONSTITUTION:A roll brush 30 installed in a scattering chamber 21 has a rotary shaft 31 arranged diagonally to the extended rotary shaft line of a screw feeder 7. In addition, needle-like members 33 of, for example, comparatively pliable material such as nylon or hard material such as steel wire are implanted collectively in a radial direction on the surface of a drum 32 which is axially attached to the rotary shaft 31 so that these two rotate in one piece. The roll brush 30 is installed so that the tips of the needle-like members 33 follow the surface of an opening to the spray chamber 21 of a feeder pipe 10, and the needle-like members 33 are driven to rotate through a belt 35 by a drive motor 34 provided on the top of a spray container 20. The roll brush 30 can be adjusted appropriately to a rotary speed depending on the extent to which powder it scattered.
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公开(公告)号：JPH0754006A
公开(公告)日：1995-02-28
申请号：JP21926993
申请日：1993-08-12
摘要： PURPOSE:To form highly controlled uniform coats on particles. CONSTITUTION:When core particles are put in a coating space and brought into contact with a coat forming material formed through a vapor phase or having the state of a vapor phase to produce coated semifine particles, core particles having Xmum average particle diameter DM and particle size distribution represented by ([DM/5, 5DM], >=90%) as frequency distribution on volume basis are dispersed Y% dispersity and brought into contact with the coat forming material. The combination of Xmum with Y% (X, Y) is (10-20, 80), (20-50, 90), (50-300, 95), (300-800, 97) or (>800, 99).
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