CN201168694Y

CN201168694Y - Anti-sifting bar screen

Info

Publication number: CN201168694Y
Application number: CNU200820005027XU
Authority: CN
Inventors: 高莹
Original assignee: Jiangsu Shagang Group Co Ltd
Current assignee: Jiangsu Shagang Group Co Ltd
Priority date: 2008-03-21
Filing date: 2008-03-21
Publication date: 2008-12-24
Anticipated expiration: 2018-03-21

Abstract

The utility model discloses a sieving proof bar sieve belonging to the technical field of martial sieving. A plurality of bars (1) spaced uniformly and arrayed in parallel are arranged on a sieve surface, and the bars (1) are shaped in long strips. The sieving proof bar sieve is characterized in that two or more projection parts (2) are axially arranged on the circumferential surfaces of the bars (1); the whole appearances of the bars (1) are shaped in bamboo joints. The sieving proof bar sieve has the advantages of rational structure designation, accurate and reliable sieving, and high efficiency. Besides, the sieving proof bar sieve can effectively prevent and solve the problem of material sieving or miss-sieving, thereby reducing the loss and generating quite considerable economic benefits. The sieving proof bar sieve is suitable to be produced and used in large-scale in industrial enterprises.

Description

A kind of anti-bar screen that sieves

Technical field

The utility model relates to a kind of anti-bar screen that sieves, and especially a kind of compass screen surface rod is the bar screen of ring shape, belongs to the material screening technical field.

Background technology

In the middle of prior art, be used for the bar screen that coke, sintering deposit etc. productions are used, as shown in Figure 1, the general direct employing finished product rod of their screening rod, each rod is rendered as strip more on monnolithic case, the advantage of this class bar screen is simple in structure, easily manufactured, with low cost, is bringing into play important effect at material screening miscellaneous scene.

However, above-mentioned bar screen still exists bigger design disadvantage.For example, in material screening, selection process, play the rod of key effect,, cause the excessive screening of material easily because its single elongate in shape causes the end play between the adjacent rod oversize.Especially, when pending screening thing is book sheet or strip, even if this moment, their actual volume was bigger, but because cause it to be sifted out, fall less than the end play between above-mentioned adjacent rod really in the size on some directions, thereby the part that causes belonging to metallurgical coke has become nut coke or breeze.Original bar screen rod elongate in shape has caused the generation that the screening thing sieves, mistake is sieved phenomenon to a great extent, has caused very big material waste; Need be improved this, to reduce loss and to produce considerable economic.

The utility model content

The purpose of this utility model is, a kind of anti-bar screen that sieves is provided, and its characteristics are, rational in infrastructure, screening accurately and reliably, the efficient height, can prevent effectively and solve that the material that existing bar screen exists sieves, mistake is sieved phenomenon in screening process.

The technical solution adopted in the utility model is as follows:

A kind of anti-bar screen that sieves, its compass screen surface be provided with many, equidistantly, the rod that is arranged in parallel, this rod is elongated, and its feature is that this rod is the ring shape on monnolithic case at the lug boss that is provided with vertically on the outer circumference surface of described rod more than 2 or 2.

Further feature is, the cross section of described lug boss is rectangular, circular, oval, polygon or irregular geometry.

Further feature is, described lug boss is uniformly-spaced laid on described rod vertically.

Further feature is, described compass screen surface is bilayer or sandwich construction, and the described rod on the different layer compass screen surface is laid staggeredly to each other.

Its crucial part of the utility model is to have set up a plurality of lug bosses on the outer circumference surface of former rod, and at least 2 or more such lug boss can be set on every rod; These protruding ring shapes to end play bigger between the adjacent rod carried out repeatedly, cut apart fully, reduced original size effectively, thereby promoted the reliability and the accuracy of material screening greatly, structurally eliminated and to have caused the excessively hidden danger of screening of material.In addition, in order further to promote anti-effect of sieving, the compass screen surface of bar screen can also be arranged to the composite construction of bilayer or multilayer, and will be positioned at the arrangement that intermeshes of rod on the different layers compass screen surface, on different working faces, formed stage by stage like this, multi-level, the comprehensive processing procedure that prevents that material from sieving, realized desirable anti-ly sieving, mistake sieves effect.

The utility model reasonable in design, screening accurately and reliably, the efficient height, prevent effectively and solve that material sieves, mistake is sieved the generation of phenomenon, thereby reduce loss, can produce considerable economic, be suitable for that industrial enterprise etc. are extensive to be made, use.

Description of drawings

Fig. 1 is the structural representation of existing bar screen

Fig. 2 is the structural representation of a kind of anti-bar screen that sieves of the present utility model

Fig. 3 is the cross sectional view of first embodiment in A-A cross section among Fig. 2

Fig. 4 is the cross sectional view of second embodiment in A-A cross section among Fig. 2

Fig. 5 is the cross sectional view of the 3rd embodiment in A-A cross section among Fig. 2

Fig. 6 is the cross sectional view of the 4th embodiment in A-A cross section among Fig. 2

The specific embodiment

Below in conjunction with drawings and Examples, the utility model is described in detail.

As shown in Figure 2, at a kind of anti-bar screen that sieves of the present utility model, its compass screen surface be provided with many, equidistantly, the rod 1 that is arranged in parallel, on the outer circumference surface of this rod 1, vertically, equally spaced be provided with 5 lug bosses 2, formed the shape of similar ring.Fig. 3 corresponds respectively to the utility model preferred first, second, third and the 4th embodiment to cross sectional shape shown in Figure 6, and that the cross section of these lug bosses 2 is designed successively is rectangular, circular, ellipse and hexagon; Certainly, in particular cases also can be designed to other some irregular geometries, as petal grade (not drawing) at some.The all a plurality of lug bosses 2 that possess these shapes can realize cutting apart, reducing the purpose of the end play size between the rod effectively.In addition, the compass screen surface of bar screen is arranged to the composite construction of bilayer or multilayer, and will be positioned at the arrangement that intermeshes of rod on the different layers compass screen surface simultaneously, can promote the screening thing further anti-ly sieve, mistake sieves effect.

These lug bosses 2 can form with the rod monoblock cast, also can use modes such as metal material and employing welding to be fixedly mounted on the former rod separately, perhaps use rigid non-metallic material to be sleeved on the former rod.

Bar screen after the above-mentioned improvement can improve the reliability and the accuracy of material screening, eliminate former pre-exist may cause the excessively hidden danger of screening of material, reduce unnecessary material loss, reach energy efficient, create the effect of considerable economic.

Above embodiment is only for explanation the utility model, but not be restriction to the usefulness of the utility model, under the situation that does not break away from spirit and scope of the present utility model, the common engineers and technicians of this area can also make various distortion and improvement, so all technical schemes that are equal to all should belong to category of the present utility model and being limited by every claim of the present utility model.

Claims

1. prevent sieving bar screen for one kind, its compass screen surface be provided with many, equidistantly, the rod (1) that is arranged in parallel, this rod (1) is elongated, it is characterized in that, at the lug boss (2) that is provided with vertically on the outer circumference surface of described rod (1) more than 2 or 2, this rod (1) is the ring shape on monnolithic case.

2. a kind of anti-bar screen that sieves according to claim 1 is characterized in that, the cross section of described lug boss (2) is rectangular, circular, oval, polygon or irregular geometry.

3. a kind of anti-bar screen that sieves according to claim 1 is characterized in that described lug boss (2) is uniformly-spaced laid vertically on described rod (1).

4. according to each described a kind of anti-bar screen that sieves in the claim 1 to 3, it is characterized in that described compass screen surface is bilayer or sandwich construction, the described rod (1) on the different layer compass screen surface is laid staggeredly to each other.