CN2483095Y

CN2483095Y - By-pass type powder sorting machine

Info

Publication number: CN2483095Y
Application number: CN 01206038
Authority: CN
Inventors: 黄泽森; 罗延新
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-04-20
Filing date: 2001-04-20
Publication date: 2002-03-27
Anticipated expiration: 2011-04-20

Abstract

The utility model relates to a by-pass powder choosing machine, the main technical features lies in that the separator of the existing cyclone powder choosing machine is transformed into a by-pass cyclone separator, i.e. the duct inlet provided on the cylinder body of the separator is in scroll shaped and is lower than the head cover of the cylinder body, the outside of the cylinder body is also provided with a spiral by-pass chamber, the upper end of the bypass chamber is connected with the upper end of the inner side wall of the separator in the narrow slit tangential direction, the lower end of the by-pass chamber is connected with middle part of the inner side wall of the separator through the air returning exist. The powder choosing machine can solve the way out for the top dust ring so as to improve the powder choosing efficiency and get more fine powder.

Description

The bypass type powder concentrator

The utility model relates to a kind of bypass type powder concentrator.

Cyclone type powder sorting machine is a kind of powder equipment that selects that adopts outside air blast, collected outside finished product, and has obtained extensive use.But because of the whirlwind tube separator on this powder concentrator only for top is that cylindrical lower is the simple designs of taper, the rate of recovery of its fine powder is still on the low side.

The purpose of this utility model is a kind of bypass type powder concentrator that can improve the fine powder rate of recovery greatly of design.

This Design of high effect rotor classifier thinking is the structure that the structure with the cyclone separator on the existing cyclone type powder sorting machine changes bypass type rotoclone collector commonly used in the dust collection device into, as CLP type bypass type rotoclone collector etc.

The utility model specifically is achieved in that a kind of cyclone type powder sorting machine, comprise that top is cylindrical, the bottom is conical separating chamber, be provided with the spout that is communicated with separating chamber at the separating chamber top, also be fixed with motor at the separating chamber top, the top cover that the vertical shaft of motor passes separating chamber stretches in the separating chamber, in separating chamber, little fan blade and spreading disk are fixed on the vertical shaft together, dropping system is equipped with in bottom at separating chamber's tapering part, the lower end of dropping system is communicated with the meal drainage conduit, periphery in separating chamber also is evenly equipped with a plurality of separators, and the tangential direction of separator upper portion side wall is provided with the pipeline that is communicated with separator and separating chamber, also is provided with discharge at the top of separator, discharge is communicated with the blast pipe of blower fan, the exhaust duct of blower fan is communicated with dropping system, and the bottom of separator is communicated with the fine powder drainage conduit, it is characterized in that:

Described separator is the bypass type cyclone separator, the entrance of this bypass type cyclone separator is a helical, and be lower than cylindrical shell top cover certain distance, be provided with bypass chamber in the cylindrical shell outside, the upper end of bypass chamber is communicated with by narrow slot on the madial wall of separator, and the lower end of bypass chamber is communicated with the madial wall middle part or the bottom of separator by return air inlet.

Characteristics of the present utility model are:

1, separative efficiency obviously improves, and fine powder content increases in the product, the quality of some product (as cement) is had obviously change lid:

2, the dust content of circulated air descends, and the wearing and tearing of blower fan and airduct reduce, and fault rate descends;

3, to handle same material dust-contained airflow volume than cartridge type separator commonly used littler for the bypass type separator;

4, adopt buncher control fineness, convenient, flexible.

Fig. 1 is a structure principle chart of the present utility model.

Fig. 2 is the front view of its bypass type cyclone separator.

Fig. 3 is the front view of the operation principle of bypass type rotoclone collector.

Fig. 4 is the vertical view of the operation principle of bypass type rotoclone collector.

Below, in conjunction with the accompanying drawings the utility model is done detailed description.

As Fig. 1, a kind of bypass type powder concentrator, comprise that the top of being made by steel plate is cylindrical, the bottom is conical separating chamber 8, be provided with the spout 5 that is communicated with separating chamber 8 at separating chamber 8 tops, also be fixed with motor 1 at separating chamber 8 tops, the top cover that the vertical shaft 4 of motor 1 passes separating chamber 8 stretches in the separating chamber 8, in separating chamber 8, little fan blade 9 and spreading disk 10 are fixed on the vertical shaft 4 together, dropping system 11 is equipped with in bottom at separating chamber's 8 tapering parts, the lower end of dropping system 11 is communicated with meal drainage conduit 12, periphery in separating chamber 8 also is evenly equipped with a plurality of separators 7, the tangential direction of separator 7 upper portion side wall is provided with the pipeline 15 that is communicated with separator 7 and separating chamber 8, top at separator 7 also is provided with discharge 6, discharge 6 is communicated with the blast pipe 2 of blower fan 3, and the exhaust duct 14 of blower fan 3 is communicated with dropping system 11, and the bottom of separator 7 is communicated with fine powder drainage conduit 13.

Its operation principle is: blower fan 3 is sent into powder concentrator with air from tangential direction, rises through the rotation of the slit of dropping system 11, enters separating chamber 8.After powder drops down onto spreading disk 10 by feed pipe 5, at once to around throw away, evenly spread in the powder-separating area, meet with the swirling eddy that rises.Coarse granule in the powder is because of being subjected to spreading disk 10, and the swirling eddy effect of little fan blade 9 produces centrifugal inertial force, is thrown toward the edge of the chamber 8 of selecting materials, descend along wall, drop down onto dropping system 11 places, locate by ascending air sorting once more at this, the downward awl place that falls discharges through meal pipe 12 as meal.Fine grained in the powder is brought in the bypass type cyclone separator 7 by ascending air in separating chamber 8.Behind cyclone separator 7, fine powder is discharged from fine powder discharge gate 13, and air-flow is gone into blower fan 3 and formed circulating current through blast pipe 2 is laggard again through collecting pipe 6.

As Fig. 2, Fig. 3 and Fig. 4, the structure of described bypass type cyclone separator 7 is to be cylindrical shape on top.The bottom is a distance below the top cover of conical cylindrical shell, have the inlet of worm-rotating type pipeline 15 along the barrel tangential direction, on cylinder body outer wall, be provided with spirality bypass chamber 16, the upper end of bypass chamber 16 is communicated with by narrow slot 18 on the madial wall of separator 7, and the lower end of bypass chamber 16 is communicated with the madial wall middle part of separators 7 by return air inlet 17.

Its operation principle is: dusty gas tangentially enters in the cylindrical shell from pipeline 15, when the annular space outside discharge 6 rotates, is divided into two strands of air-flows up and down; Return volume after air-flow upwards and the top cover collision and circle round downwards, form little eddy current; Downward air-flow also forms the secondary swirling motion in rotatablely moving.These two sections swirling air streams form interface 19 near discharge 6 lower ends, produce strong centrifugation.Owing to dropping down onto the bottom than coarse granule with the air-flow that is rotated down and discharge to wall got rid of in the effect of centrifugal inertial force; And another part is by rotating up the trickle grit that air-flow is taken away, below top cover, form the dust ring of strong rotation, make it to reunite, and after upper tangential narrow slot 18 is introduced bypass chamber 16, separate with primary air, avoid along the dirty and danger that swept away by the secondary vortex air-flow of inner tank theca.Enter in return air inlet 17 introducers of dusty gas via the bottom of bypass chamber 16, converge, the dust band is separated to grey storehouse with the primary air of backspin.Therefore, bypass type cyclone separator 7 is the outlets that solve the flour dust on top ring by the bypass chamber 16 of the little whirlwind in top, and grinding efficiency is improved.In fact, the structure of described bypass type cyclone separator 7 and operation principle are basic identical with CLP type bypass type rotoclone collector.

Claims

1, a kind of bypass type powder concentrator, comprise that top is cylindrical, the bottom is conical separating chamber (8), be provided with the spout (5) that is communicated with separating chamber (8) at separating chamber (8) top, also be fixed with motor (1) at separating chamber (8) top, the top cover that the vertical shaft (4) of motor (1) passes separating chamber (8) stretches in the separating chamber (8), in separating chamber (8), little fan blade (9) and spreading disk (10) are fixed on the vertical shaft (4) together, dropping system (11) is equipped with in bottom at separating chamber (8) tapering part, the lower end of dropping system (11) is communicated with meal drainage conduit (12), periphery in separating chamber (8) also is evenly equipped with a plurality of separators (7), the tangential direction of separator (7) upper portion side wall is provided with the pipeline (15) that is communicated with separator (7) and separating chamber (8), also be provided with discharge (6) at the top of separator (7), discharge (6) is communicated with the blast pipe (2) of blower fan (3), the exhaust duct (14) of blower fan (3) is communicated with dropping system (11), the bottom of separator (7) is communicated with fine powder drainage conduit (13), it is characterized in that:

Described separator (7) is bypass type cyclone separator (7), pipeline (15) inlet of this bypass type cyclone separator (7) is helical, and be lower than cylindrical shell top cover certain distance, be provided with bypass chamber (16) in the cylindrical shell outside, the upper end of bypass chamber (16) is communicated with by narrow slot (18) on the madial wall of separator (7), and the lower end of bypass chamber (16) is communicated with the madial wall middle part or the bottom of separator (7) by return air inlet (17).