CN205868788U - Screening device of restriction material length - Google Patents

Abstract

The utility model discloses a screening device of restriction material length, including perforated sieve net and limiting layer, the limiting layer set up in in the perforated sieve net or perforated sieve side off the net, perforated sieve net with standard length is filtered in the material to the closely spaced of limiting layer. Adopt the utility model discloses, can effectively avoid do long and thin material smash or during the screening part not conformance to specification's material pass the screen cloth, solved the inhomogeneous or inhomogeneous problem of screening material of long and thin bar comminuted to through reciprocating of limiting layer, it is aerial to avoid the material can not block at the screen cloth.

Description

Limit the screen device of material length

Technical field

This utility model relates to a kind of screen device, particularly relates to one and may be used for pulverizer or vibrosieve restriction material The screen device of length.

Background technology

Current screen device, including the screen device for pulverizer or the screen device for vibrosieve, its knot Structure is one layer of porous masses, when pulverizer is used for pulverizing elongate articles or the vibrosieve elongated material of screening, often has length Excessive material passes sieve aperture, causes the material screened to close the material required doped with off-gauge, and reduction is pulverized or screened Quality.

It is inclined hole by the hole machined of screen cloth that existing equipment uses for the settling mode of above-mentioned technical problem, and which adds Work cost is high, and difficulty of processing is big, and cannot avoid the problems referred to above completely.

Utility model content

This utility model embodiment technical problem to be solved is, it is provided that a kind of screen cloth dress limiting material length Putting, including the first porous masses and limiting layer, described limiting layer is arranged in described first porous masses or described first porous Below screen cloth, described first porous masses and the length being smaller than material screening criteria of described limiting layer, such that it is able to keep away Exempt from the length strip-shaped materials more than standard through sieve aperture.

Further, described limiting layer can be the second porous masses, and described second porous masses is arranged at described first Below porous masses, the hole of described second porous masses is interlaced the most mutual with the hole of described first porous masses Not overlapping to form dislocation, staggered position, hole can stop material directly through described first porous masses and described hole sizer more than second Net drops.

Further, described second porous masses is installed on pulverizer, along described first under driving means drives The radial direction of porous masses moves up and down, and when described second porous masses moves up, can will get lodged in described first porous masses Strip-shaped materials upwards eject, it is to avoid affect pulverizer normally work because blocking the first porous masses.

Further, described limiting layer can also is that the restriction plate being arranged at described first porous masses, described restriction plate Cross section is less than described first porous masses, it is to avoid length is more than the strip-shaped materials of standard directly through sieve aperture.

It should be noted that the type of drive of described limiting layer is pneumatic, Mechanical Driven or other usual driving handss Section.

Implement this utility model, have the advantages that

Use this utility model, the thing that part falls short of specifications when elongated material is pulverized or screened can be prevented effectively from Material, through screen cloth, solves the problem that elongated strip shaped crushing material is uneven or material screening is uneven, and passes through limiting layer Regulation, it is to avoid it is aerial that material will not be blocked in screen cloth.

Accompanying drawing explanation

Fig. 1 is existing disintegrator sieving net apparatus structure schematic diagram；

Fig. 2 is the size reduction machinery structural representation using this utility model screen device；

Fig. 3 is existing Structure of Vibrating Screen schematic diagram；

Fig. 4 is the Structure of Vibrating Screen schematic diagram using this utility model screen device.

Detailed description of the invention

For making the purpose of this utility model, technical scheme and advantage clearer, new to this practicality below in conjunction with accompanying drawing Type is described in further detail.

Fig. 1 is existing disintegrator sieving net apparatus structure schematic diagram, and it only has one layer of screen cloth 1, and elongated strip-shaped materials may Drop through hole 11 so that the grain shape of pulverizing is uneven.

Fig. 2 is the pulverizer using this utility model screen device, including the first porous masses 1 and the second porous masses 2, Described first porous masses 1 and the length being smaller than crushing material standard of described second porous masses 2, such that it is able to avoid Length passes sieve aperture more than the strip-shaped materials of standard, and described second porous masses 2 is arranged at below described first porous masses 1, The hole 21 of described second porous masses 2 is interlaced with the hole 11 of described first porous masses 1 forms dislocation (such as figure section place Show), staggered position, hole can stop the material through described first porous masses to drop.

Described second porous masses 2 is installed on pulverizer 3, along described first porous masses under driving means drives Radially move up and down, as shown in the direction of arrow in figure.When described second porous masses 2 moves up, described can will be got lodged in The strip-shaped materials of one porous masses 1 upwards ejects, it is to avoid affect pulverizer normally work because blocking the first porous masses 1.

Fig. 3 is existing Structure of Vibrating Screen schematic diagram, and it only has one layer of screen cloth 4, and elongated strip-shaped materials may pass through hole 41 Drop so that the material error of screening is the biggest.

Fig. 4 is the Structure of Vibrating Screen schematic diagram using this utility model screen device, including described in the first porous masses 4 the One porous masses 4 is provided with restriction plate 5, and described restriction plate 5 is arranged at below discharging opening, and described restriction plate 5 cross section is less than described First porous masses 4, such that it is able to avoid length to be more than the strip-shaped materials of standard directly through sieve aperture 41.

The above is preferred implementation of the present utility model, it is noted that for the ordinary skill of the art For personnel, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improve and profit Decorations are also considered as protection domain of the present utility model.

Claims (3)

1. the screen device limiting material length, it is characterised in that include the first porous masses and limiting layer, described restriction Layer is arranged at below described first porous masses, and described limiting layer is the second porous masses, and described second porous masses is arranged at Below described first porous masses, described first porous masses and the length being smaller than material screening criteria of described limiting layer Degree, the hole of described second porous masses is interlaced with the hole of described first porous masses forms dislocation, described hole sizer more than second Net is installed on pulverizer, and under driving means drives, the radial direction along described first porous masses moves up and down.

The screen device of restriction material length the most according to claim 1, it is characterised in that the driving side of described limiting layer Formula is pneumatic or Mechanical Driven.

3. the screen device limiting material length, it is characterised in that include the first porous masses and limiting layer, described restriction Layer is for be arranged at the restriction plate in described first porous masses, and described restriction plate cross section is less than described first porous masses.