CN203459273U - Double-layer vibrating sieve - Google Patents

Abstract

The utility model discloses a double-layer vibrating sieve, relates to improvement of screening equipment, and aims to overcome defects that in the original vibrating sieve design, materials cannot be uniformly screened, abrade a sieve beam, are poor in screening effect and the like. According to the double-layer vibrating sieve, a sieve box is mounted on a base through spring supports, a vibrating sieve support is fixedly mounted on the outer wall of the sieve box, and a slope is arranged in the middle of the sieve box; and a bottom plate of the vibrating sieve is fixedly connected with the vibrating sieve support, and the slope is seamlessly clamped between the bottom plate of the vibrating sieve and the vibrating sieve support. The double-layer vibrating sieve is simple in structure and convenient to manufacture and use; the defects that in the original vibrating sieve design, the materials cannot be uniformly screened, abrade the sieve beam, are poor in screening effect and the like are overcome, and the coke overflowing phenomenon is prevented; and the screening effect is remarkably improved, the normal use rate of equipment is increased, and the labor intensity of an operator is reduced.

Description

Double-deck screen shale shaker

Technical field

The utility model relates to the improvement to screening installation.

Background technology

Double-deck screen shale shaker is the only way which must be passed of steel mill coke supply, the nut coke below the 25mm in coke and affect coke blacking face below the 12mm of blast furnace process all thus vibratory sieve separate.Former use ZSG15 * 30 double-deck screen shale shaker, when feed material stream is slightly large, runs not open the excessive phenomenon of coke to often there is material stream between sieve feeding mouth more than girder, causes material screening bad.Material runs not open and causes material loading time lengthening, and whole feeding system belt feeder lengthens the duration of runs, has so increased production cost, has increased again operator's labour intensity, and plant maintenance time less, affects the normal maintenance of equipment.And the attenuation under the long term wear of coke of the girder of sieve, intensity reduces to be often excited device shakes and splits, snaps distortion, needs periodic maintenance to affect the normal function rate of equipment.

Summary of the invention

The purpose of this utility model is to eliminate the double-deck screen shale shaker of the defects such as the former upper material of sieve design that shakes runs not open, material weares and teares sieve beam, material screening effect is bad.

Screen box of the present utility model is arranged on base by spring fastening, on the outer wall of screen box, be installed with vibratory sieve bearing, there is one section of slope at screen box middle part, and the base plate of vibratory sieve is fixedly connected with vibratory sieve bearing, and seamless clamping slope between the base plate of vibratory sieve and vibratory sieve bearing.

The utility model is simple in structure, make easy to use, the defect of eliminating that the upper material of the former sieve design of shaking runs not open, beam is sieved in material wearing and tearing, material screening effect is bad etc., solved the excessive phenomenon of coke, and screening effect obviously provides, lengthen the normal function rate of equipment, reduced operator's labour intensity.

Accompanying drawing explanation

Fig. 1 is the utility model structural representation.

The specific embodiment

[0007] screen box 6 of the present utility model is arranged on base 1 by band spring fastening 2, on the outer wall of screen box 6, be installed with vibratory sieve bearing 5, there is one section of slope 4 at screen box 6 middle parts, the base plate of vibratory sieve 3 is fixedly connected with vibratory sieve bearing 5, and seamless clamping slope 4 between the base plate of vibratory sieve 3 and vibratory sieve bearing 5.

The utility model is partly comprised of exciting device, screen box, dust excluding hood, material-falling hopper, vibration absorber, base etc.During vibratory sieve work, the exciting force being produced by vibrator passes on the compass screen surface in screen box by screen box, the exciting force producing because of vibrator is longitudinal force, force screen box to drive screen cloth face longitudinally to move forward and backward, under certain condition, the material on screen cloth face is because being thrown forward by the effect of exciting power, the material that is less than sieve aperture while falling thoroughly sieves and falls lower floor, the movement locus of material on screen cloth face is projectile motion, due to the material movement going round and beginning again like this, thereby completes material screening operation.

The utility model is increased to 350mm by the distance 100mm(adding between shaker screen vibrator crossbeam and sieve plate), solve sieve beam backgauge material stream and run not open the excessive problem of coke; Especially by change, sieve beam angle of inclination, change 40 ° into by original 50 °, solved the problems bad and wearing and tearing of sieve beam of sieving.

Claims (1)

1. a double-deck screen shale shaker, it is characterized in that: screen box (6) is arranged on base (1) by band spring fastening (2), on the outer wall of screen box (6), be installed with vibratory sieve bearing (5), there is one section of slope (4) at screen box (6) middle part, the base plate of vibratory sieve (3) is fixedly connected with vibratory sieve bearing (5), and seamless clamping slope (4) between the base plate of vibratory sieve (3) and vibratory sieve bearing (5).

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