CN101322968A

CN101322968A - Coal fines fiber separator

Info

Publication number: CN101322968A
Application number: CNA2008100224933A
Authority: CN
Inventors: 顾桂祥
Original assignee: 顾桂祥
Current assignee: JIANGSU HUANENG CONVEYING EQUIPMENT Co.,Ltd.
Priority date: 2008-07-22
Filing date: 2008-07-22
Publication date: 2008-12-17
Anticipated expiration: 2028-07-22
Also published as: CN101322968B

Abstract

The invention discloses a separator for coal powder fiber, which comprises a driving device, a combing and filtering mechanism and a casing. The casing comprises a vertically arranged shell taking the shape of a circular oblique cone table, an assorted upper cover and a discharge hole thereof. The upper cover is provided with a feed opening and a clearing opening; the driving device is fixedly connected on the upper end surface of the upper cover and is connected with and drives the combing and filtering mechanism arranged on the bottom end surface of the upper cover by a shaft which is vertically arranged. With a runner serving as a skeleton, a separation structure provided with a combing layer and a screening layer is respectively arranged on the upper and lower end surfaces of the combing and filtering mechanism for the purpose of separately extracting long fiber, short fiber and velvet fiber. The coal power from which the fiber is removed flows out from the discharge hole by the shell, in order to ensure that no sintering phenomenon exists on the inner wall of the nozzle opening and the jetting of the coal powder is smooth and uniform. The separator for coal powder fiber has simple structure and high purification efficiency; besides, the separator for coal powder fiber is especially applicable to the assorted use for various gasification projects.

Description

Coal fines fiber separator

Technical field

The present invention relates to a kind of screening plant, specifically, the present invention relates to a kind of in the coal dust course of conveying by comb screening from the separator that goes out fiber.

Background technology

The coal dust that uses in the modern industry is to be pulverized through coal pulverizer by block coal to form.Because of in the coal often with the wood materials of permineralization not, wood materials forms fiber different in size and is mixed in the coal dust during coal-grinding.The coal dust of sneaking into fiber directly influences result of use, particularly is the stove and accessory of fuel with the coal dust, because of the fiber at the jet hole place that flows through is sintered, in case be accumulated as the sticking stifled jet hole of piece, just causes expensive nozzle to be burnt out.Prior art adopts lattice structure in the coal dust course of conveying, can effectively sift out fiber, can improve the purity of coal dust, improves result of use.But lattice structure can only be sifted out a spot of short fiber and velvet-like fiber, can not thoroughly solve the problem that jet hole is glued stifled and scaling loss.

Summary of the invention

The present invention is primarily aimed at the weak shortcoming of prior art screening capacity, proposes a kind of hierarchical screening structure that has, and screening capacity is strong, and can improve the coal fines fiber separator of coal dust loosening degree.

The present invention is achieved through the following technical solutions technical goal.

Coal fines fiber separator, it comprises drive unit, comb filter structure and shell.Described shell contains loam cake and the discharging opening that matches with housing, on cover and be provided with charging aperture and clean-up port.Described drive unit is fixedly connected on the upper surface of loam cake, and by vertically running through the axle of loam cake centre bore, drives the rotation of comb filter structure with 30～40 rev/mins.Its improvements are: comb filter structure is discoid, integral body places the big end of housing place and loam cake bottom surface separately and parallel, the runner that comb filter structure is formed with spoke and wheel rim is a frame member, fixedly connected 28～42 combs that are radial arrangement are perverse in the runner upper surface, and at the grid of the fixedly connected sieve shape in runner lower surface, the comb thorn on combing perverse is erect up and is equidistantly arranged.Described housing is the oblique taper type of circle, and the charging aperture of biasing is coaxial with discharging opening, and angle α is 55 °～65 ° between left side wall and the large end face.

Above-mentioned comb filter structure is provided with comb thorn combing and grid screen double-layer separating structure.During the rotation of comb filter structure, the comb thorn with 10 °～15 ° of angles of lead at first carries out combing to coal dust, and the long fibre that combs out slides to comb thorn root along angle of lead, and grid sifts out short fiber and the velvet-like fiber that comb thorn end goes out clearly.In case the accumulation of fibers of comb filter structure comb filter is shut down the back and is removed from the clean-up port to set amount.Grid is a fabricated structure, is convenient to from the grid of clean-up port burst dismounting and change wear out failure.The housing discharging of the oblique taper type of circle is smooth and easy.

The present invention compared with prior art has following good effect:

1, have double-layer separating structure, the separate mode by comb thorn combing and grid screen carries out double purified to coal dust, coal dust purity height respectively;

2, the comb of motion thorn removes and has the fibration of isolating, and also has the effect of stirring the coal dust that looses, and helps evenly spraying coal dust;

3, initiatively the defibre ability is strong for the comb of motion thorn, the purification efficiency height;

4, isolating construction is simple, easy to manufacture.

Description of drawings

Fig. 1 is a structural profile schematic diagram of the present invention.

Fig. 2 is the side view of Fig. 1.

Fig. 3 is the vertical view of Fig. 2.

Fig. 4 is comb thorn bar and the grille plane structural representation on the comb filter structure.

Fig. 5 is a comb filter structure part section enlarged diagram.

The specific embodiment

Below with reference to the accompanying drawings and in conjunction with the embodiments, the present invention is elaborated.

Coal fines fiber separator shown in Figure 1, it comprises drive unit 1, comb filter structure 2 and shell 3.Described shell 3 contains and housing 3.1 and the loam cake 3.2 that matches thereof, discharging opening 3.3.Housing 3.1 profiles are oblique taper types of circle of vertically-arranged, the charging aperture 3.4 of biasing is coaxial with discharging opening 3.3, in the present embodiment between left side wall and the large end face angle α be 60 °, can not accumulate on housing 3.1 inwalls at the coal dust of flowing through under this angle condition, guarantee unblocked.Loam cake 3.2 is provided with charging 3.4 and clean-up port 3.5.Drive unit 1 is fixedly connected on the upper surface of loam cake 3.2, and the output of drive unit 1 is by the comb filter structure 2 of vertically arranged axle 1.1 connections with loam cake 3.2 bottom face parallel interval, and drive unit 1 drives 2 rotations of comb filter structure with 36 rev/mins rotating speed.The runner 2.1 that discoid comb filter structure 2 is formed with spoke and wheel rim is a frame member, and the lower surface is set up the isolating construction of comb thorn combing and the double-deck face of grid screen separately thereon.Wherein, every along its length interval 4mm erects one and towards tilt 12 ° comb thorn of direction of rotation, the comb thorn diameter 2.5mm of needle-like, long 60mm towards the upper surface for fixedly connected 32 combs thorn bars 2.2 that are radial installation in runner 2.1 upper surfaces, every comb thorn bar 2.2.Comb thorn bar 2.2 along runner 2.1 arranged radiallys constitutes the first aspect isolating construction, and specially department separates long fibre.Fixedly connected grid 2.3 constitutes the second aspect isolating construction in the lower surface of runner 2.1, utilizes the sieve aperture screen of grid 2.3 to go out short fiber and velvet-like fiber.Grid 2.3 is divided into 4 and is fixedly connected on runner 2.1 lower surfaces in the present embodiment, the grid 2.3 of fabricated structure be convenient to behind wear out failure can be from the clean-up port 3.5 punishment piece dismounting and change, need not make integral demounting.

During the invention process, coal dust is from charging aperture 3.4 inputs, and after comb thorn combing and grid screen twice separating treatment, clean coal dust flows out from discharging opening 3.3 through housing 3.1.Not fibrous pulverized coal flow inwall when nozzle does not have sintering phenomenon, and is unimpeded, even when keeping spraying coal dust.

Comb thorn among the present invention on the comb thorn bar 2.2 removes has comb filter fibration, the effect of stirring the coal dust that looses in addition, and loose coal dust helps nozzle ejection.

As a further improvement on the present invention, housing 3.1 is made up big and down small truncated cone, more help coal dust.

Claims

1, a kind of coal fines fiber separator, it comprises drive unit (1), comb filter structure (2) and shell (3); Described shell (3) contains loam cake (3.2) and the discharging opening (3.3) that matches with housing (3.1), and loam cake (3.2) is provided with charging aperture (3.4) and clean-up port (3.5); Described drive unit (1) is fixedly connected on the upper surface of loam cake (3.2), and drives comb filter structure (2) rotation by the axle (1.1) that vertically runs through loam cake (3.2) centre bore with 30～40 rev/mins; It is characterized in that: comb filter structure (2) is for discoid, integral body places the big end place of housing (3.1) and loam cake (3.2) bottom surface separately and parallel, the runner (2.1) that comb filter structure (2) is formed with spoke and wheel rim is a frame member, fixedly connected 28～42 perverse of combs (2.2) that are radial arrangement in runner (2.1) upper surface, and at the grid (2.3) of the fixedly connected sieve shape in runner (2.1) lower surface, the comb thorn of combing on perverse (2.2) is erect up and is spaced; Described housing (3.1) is the oblique taper type of circle, and the charging aperture of biasing (3.4) is coaxial with discharging opening (3.3), and angle α is 55 °～65 ° between left side wall and the large end face.

2, coal fines fiber separator according to claim 1 is characterized in that: described grid (2.3) is the circular sieve plate of combined type, and it waits piecemeal to form by 3～5.

3, coal fines fiber separator according to claim 1 is characterized in that: described comb perverse (2.2) is the strip member, arranges the comb thorn of needle-like towards the every interval 3.5～4.5mm of upper surface length direction, comb thorn diameter 2～3mm, the long 50～75mm of comb thorn.

4, coal fines fiber separator according to claim 1 is characterized in that: the comb on the described comb perverse (2.2) is perverse towards direction of rotation 10 °～15 ° arrangements of tilting.