CN2355811Y - Assembled micro fine powder grader - Google Patents

Abstract

The utility model relates to an assembled micro fine powder grader, which is composed of one cyclone separation classifier to three cyclone separation classifiers with different shapes and structures, and the three cyclone separation classifiers are connected in series. Each cyclone separation classifier is formed by assembling a vortex component and a dust collection component; all vortex components and dust collection components of all cyclone separation classifiers are linked through coupling flanges with same dimension; the vortex components and the dust collection components can be randomly combined and jointed to form the cyclone separation classifier with various structures to be adapted to the requirement of the grading of the fine powder with different grains.

Description

A kind of assembly type attritive powder clasfficiator

A kind of assembly type attritive powder clasfficiator.The utility model belongs to the device of attritive powder air current classifying, particularly the cyclonic separation classification multilevel device of the flexibly changing structure of breakdown assembling.

Various attritive powder products have been widely used in fields such as electronics, machinery, painting, printing and building materials industries, and the separation grader of attritive powder has devices such as whirlwind, screen cloth.The structure of general cyclone classifier, shape and size are fixed, when it is used to the air current classifying of powder, the flow of air-flow, velocity flow profile, parameter areas such as inclination angle, and the proportion of powder and particle size range all fix, and can not adjust flexibly, limited the scope of application.ZL92200393.9 jet injection whirlwind, made full use of the aerodynamic characteristic of spraying whirlwind and injection suction group interflow, and the mode of 5 grades of series and parallel appropriate combination, strengthened the mixing of pulverizing, discrete, grading effect are applicable to that granularity is any five sections classifications of 20-0.05 μ m ultra micro powder.But structure, shape and size that this machine is every grade are fixed, and can not adjust flexibly, only are applicable to that the ultra micro powder carries out the high accuracy classification.

The design's purpose is to produce a kind of varistructured assembly type whirlwind clarifier, can assemble grader flexibly according to required powder-product granularity requirements and treating capacity, improves grading effect, enlarges the scope of application.

The thought of design is that whirlwind clarifier is decomposed into eddy flow and the parts that gather dust, each functional part all has several different structure styles selective, can select two kinds of functional part combinations to be connected into a cyclonic separation clasfficiator during use on demand, form whole assembly type attritive powder clasfficiator with the cyclonic separation clasfficiator of 1-3 different structure.

The present designed utility model assembly type attritive powder clasfficiator of accompanying drawings.Fig. 1 is the schematic side view of 1 grade of assembly type attritive powder clasfficiator, Fig. 2 is the schematic top plan view of the eddy flow parts of assembly type attritive powder clasfficiator, Fig. 3 is the member profile schematic diagram of assembly type attritive powder clasfficiator, and Fig. 4 is the installation diagram of assembly type attritive powder clasfficiator.1-eddy flow parts, the 2-parts that gather dust, the 3-connecting flange, the 4-attachment bolt, 5-powder air flow inlet, 6-fine powder air stream outlet, 7-meal blanking outlet, 8-gatherer, 9-blanking device, the 10-air-introduced machine, the 11-Air-regulating valves, 12-powder gas is mixed into device, 1a, 1b-2 kind eddy flow parts are overlooked, the 3rd kind of eddy flow parts side-looking of 1c-, 2d, 2e, the parts side-looking of gathering dust of 2f-3 kind.

The technical scheme of utility model is: a kind of assembled micro fine powder grader, and, revolved by the 1-3 level Wind separates clasfficiator and forms, and every grade of cyclonic separation clasfficiator is by eddy flow parts 1, and the parts 2 that gather dust connect Flange 3, coupling bolt 4, powder air flow inlet 5, fine powder air stream outlet 6, meal blanking outlet 7, Collector 8, blanking device 9, air-introduced machine 10, Air-regulating valves 11, powder gas is mixed into device 12 Knot is assembled into. It is characterized in that every grade of cyclonic separation clasfficiator all be one by eddy flow parts cylindrical shell and the section of gathering dust The part cylindrical shell connects the barrel diameter of the inner wall smooth that forms along tubular axis by connecting flange with attachment bolt The hollow tubular device that changes. Cylindrical shell top is the eddy flow parts, and 1a, 1b, 1c3 kind form are arranged, The 1a type adopts the involute-type air inlet, and the gas streamline is level and smooth, and the good integrity of eddy flow is not easy by return-air Crosstalk, take away powder, stability of flow, air quantity is big; The 1b type adopts the tangent line intake method, and flow is moderate; 1c type eddy flow parts adopt the screw type air inlet, and air-flow is with the motion of spinning downwards of certain inclination angle, air pressure damage Lose littlely, powder stream is to stable, the flow velocity height, and yield improves. The cylindrical shell bottom is the parts that gather dust, have 2d, 2e, 2f3 kind form, the 2d type adopts the cylindrical shell with diffusion structure, partly spreads at eddy flow to subtract After the speed, coarse granule (granularity 15-30 μ m) powder is because rotatory inertia and Action of Gravity Field fall into receipts In the storage, in thin material powder flow out with return-air and enter subordinate, this structure is conducive to the meal classification; 2e Type is the cylindrical shell with buffer structure, uses the centrifugal force field that straight drum part keeps and stablize eddy flow, makes Grain diametric plane distribution reasonably stability from fine to coarse from the axle center to the barrel adds thick material of persistent erection powder (8-16 μ m) yield; The 2f type is the cylindrical shell with accelerating structure, with thin and long acceleration tube powder is accelerated Motion breaks away from gas, is suitable for fine powder (granularity 0.5-8 μ m) classification and collection, and parts gather dust All receive carefully the cylindrical shell bottom, accelerates in order to connect, and make mutually the powder motion with meal blanking outlet 7, complete Section's connecting flange and attachment bolt all have same size, and the eddy flow parts can any combination with the parts that gather dust, In order to be applicable to the classification requirement of different flow and different grain size powder, the upper side of eddy flow parts connects Powder air flow inlet 5,5 be one with a segment pipe of feed pipe phase coupling flange, press gas flow The line direction enters in the cylindrical shell along the barrel opening, and extends to form a guide pipe in tube, eddy flow parts top The section top connects fine powder air stream outlet 6 along the axis opening part, and outlet 6 is by extending to cylindrical shell in the cylindrical shell

One section outer circular short tube connects with subordinate's powder classification device or fine powder collector with flange. The first order Powder air flow inlet 5 is mixed into device 12 by pipeline and powder gas and connects the powder of second and third two-stage The material air flow inlet goes out 6 with first and second grade fine powder air-flow respectively and is connected, and third level powder air stream outlet is logical Piping and Air-regulating valves 11 and air-introduced machine 10 link. The operation principle of this clasfficiator is, in negative pressure Effect is lower, and the powder that mixes with air-flow enters guide pipe by powder gas mixing arrangement through the powder air flow inlet, stream Go out to rotate along the cylinder inboard wall face afterwards, because centrifugal force and action of gravitation are realized separation of air from dust and powder The end classification, fine powder flows out to fine powder collector or subordinate with air-flow from eddy flow component top fine powder air stream outlet Powder classification device, meal are dropped into the parts that gather dust and are moved downward along barrel, by meal blanking outlet, fall into In the external collector 8 in below, if the one-level classification reaches the product granularity requirement, then collect respectively the thickness powder, If also need classification, then fine powder enters second, third grade powder classification device continuation classification again.

The utility model is applicable to the classification of metal and non-metal solid attritive powder.

The good effect of assembly type attritive powder clasfficiator is: 1, the structure model is simple, and the assembling record is lived, and can need assemble by process conditions or powder size.2, improved each granularity rank grading effect of attritive powder, the scope of application is wide, and 3, adopt air current classifying, there is not the noise pollution that mechanical moving part produces, dust pollution is avoided in sealing easily.

Embodiment

The assembly type attritive powder clasfficiator that example 1 usefulness stainless steel materials is made, 1a eddy flow parts and the 2d parts that gather dust are combined as the first order, be used for meal level (15-30 μ m) and collect, 1b eddy flow parts and the 2e parts that gather dust are combined as the second level, be used for meal level collection (granularity 8-16 μ m); 1c eddy flow parts and the zf parts that gather dust are combined as the third level and are used for fine powder level (0.5-8 μ m) and collect.To granularity is 0.5-30 μ m, and proportion is sheet refining metallic powder end product fine graded about 7g/cm, has good grading effect.

The cover assembly type attritive powder clasfficiator that example 2 usefulness medium carbon steel sheet materials are made, the eddy flow parts all adopt the 1a type, the eddy flow parts adopt 1a and 2d successively with the combination of the parts that gather dust, 1a and 2e, the collocation of 1a and 2f connects, be used for the classification of example 1 described sheet refining metallic powder product, grading effect is good, and treating capacity is big.

Claims (1)

1, a kind of assembly type attritive powder clasfficiator, form by 1-3 level cyclonic separation clasfficiator, every grade of cyclonic separation clasfficiator is by eddy flow parts (1), parts (2) gather dust, connecting flange (3), attachment bolt (4), powder air flow inlet (5), fine powder air stream outlet (6), meal blanking outlet (7), gatherer (8), blanking device (9), air-introduced machine (10), Air-regulating valves (11), powder gas is mixed into device (12), joint group is dressed up, it is characterized in that every grade of cyclonic separation clasfficiator all is one and passes through connecting flange by the eddy flow parts cylindrical shell and the parts cylindrical shell that gathers dust, connect the hollow tubular device of the barrel diameter of the inner wall smooth that forms along the tubular axis variation with attachment bolt, cylindrical shell top is the eddy flow parts, the eddy flow parts have 1a, 1b, three kinds of forms of 1c, 1a shape is adopted the involute-type air inlet, the gas streamline is level and smooth, stability of flow, air quantity is big, 1b shape eddy flow parts adopt the tangential admission mode, flow is moderate, 1c type eddy flow parts adopt the screw type air inlet, air-flow is for the helical movement downwards with certain inclination angle, atmospheric pressure lost is little, the flow velocity height, the cylindrical shell bottom is the parts that gather dust, the parts that gather dust have 2d, 2e, 2f3 kind form, 2d shape is adopted the cylindrical shell with diffusion structure, 2e shape is the cylindrical shell with buffer structure, 2f shape is the cylindrical shell with accelerating structure, the parts bottom cylindrical shell that gathers dust is all received carefully, link with meal blanking outlet (7), meal enters in the gatherer (8) thus, export through blanking device (9) again, all the eddy flow parts have the identical barrel diameter that is connected with the parts that gather dust, all connecting flange and attachment bolt all have same size, the eddy flow parts can make up arbitrarily with the parts that gather dust, eddy flow upper parts of components side connects powder air flow inlet (5), the powder air flow inlet is one and has and a link segment pipe of flange of feed pipe, enter in the cylindrical shell along the barrel opening by the gas grain direction, and in tube, extend to form a guide pipe, eddy flow component top top is along the axis opening part, connect fine powder air stream outlet (6), outlet (6) is by extending to one section outer circular short tube of cylindrical shell in the cylindrical shell, having flange connects with the powder air flow inlet or the fine powder collector of subordinate powder classification device, first order powder air flow inlet (5) is mixed into device (12) with powder gas and connects by pipeline, second, the powder air flow inlet of three two-stages is respectively with first, secondary fine powder air stream outlet (6) links, third level powder air stream outlet is by Air-regulating valves (11), link with air-introduced machine (10), air-introduced machine is to cause the work system negative pressure, Air-regulating valves control working air current flow.

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