CN216368808U

CN216368808U - Sintering material screening system

Info

Publication number: CN216368808U
Application number: CN202122531610.2U
Authority: CN
Inventors: 杨招; 谭海波; 傅斌; 谭戈; 赵伟
Original assignee: Chongqing Iron and Steel Co Ltd
Current assignee: Chongqing Iron and Steel Co Ltd
Priority date: 2021-10-20
Filing date: 2021-10-20
Publication date: 2022-04-26
Anticipated expiration: 2031-10-20

Abstract

The application provides a sintering material screening system, including screening plant and lower aggregate unit, lower aggregate unit is located screening plant's below for collect undersize thing. Screening plant includes slope screen cloth and horizontal screen cloth, and the slope screen cloth includes the strip spare that many intervals that slope frame and slope set up, and the lower extreme of slope frame is connected with horizontal screen cloth's one end, and horizontal screen cloth's the other end orientation is kept away from the one end extension of slope frame, and the both ends of every strip spare all are fixed with the slope frame, and the extending direction of strip spare is unanimous with the incline direction of slope frame, and is convex arc along its axial cross-section of perpendicular to. The slope screen cloth carries out preliminary screening to the sintering material, and the arc structure of strip spare makes the sintering material on the slope screen cloth easily slide and carries out the secondary screening to the horizontal screen cloth on, has reduced the sintering material and has piled up the probability at the slope screen cloth, carries out lasting and abundant screening to the sintering material.

Description

Sintering material screening system

Technical Field

The application relates to the technical field of metallurgy, in particular to a sintering material screening system.

Background

In many fields, the sintering material needs to be screened and then the sintering material with a proper particle size range is selected for subsequent production. Particularly in the field of metallurgy, large mineral aggregates and impurities inevitably exist in the uniformly sintered ores, and if the large mineral aggregates and the impurities enter a sintering process, the production of the uniformly sintered ores is seriously influenced, so that the uniformly sintered ores need to be screened.

The screening system of the existing uniform mixing ore usually directly uses a horizontal screen to screen the uniform mixing ore, and large ore materials and impurities after screening can be accumulated on the screen horizontally placed, so that the screening effect is influenced and the screening is hindered to be continuously carried out.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sintering material screening system, it can carry out lasting and abundant screening to the sintering material.

In order to achieve the purpose, the following technical means are adopted in the application:

the application provides a sintering material screening system, including screening plant and lower collecting device, lower collecting device is located screening plant's below, a below for collect the screen cloth, screening plant is including slope screen cloth and horizontal screen cloth, the bar spare that many intervals that the slope screen cloth set up including slope frame and slope set up, the lower extreme and the one end of horizontal screen cloth of slope frame are connected, and the other end orientation of horizontal screen cloth extends the one end of keeping away from the slope frame, the both ends of every bar spare all are fixed with the slope frame, and the extending direction of bar spare is unanimous with the incline direction of slope frame, the bar spare is convex arc in the vertical to its axial cross-section.

The sintering material that treats the screening carries out preliminary screening on the slope screen cloth at first, because bar downward sloping setting, and the bar is along its axial cross-section of perpendicular to and be the bellied arc, make the sintering material that falls on the slope screen cloth can fall into the clearance between the adjacent bar along the ARC structure, make the sintering material that partly accords with the production requirement fall into down the collection device by the clearance in the in-process that the bar glides, reduce its probability that stops on the bar. Meanwhile, after large sintered materials fall into gaps between adjacent strip-shaped parts, due to the arc-shaped structure, the contact area between the large sintered materials and the strip-shaped parts is reduced, the friction force between the large sintered materials and the strip-shaped parts is reduced, the large sintered materials easily slide down to a horizontal screen which is connected with the lower end of an inclined frame, the sintered materials which slide down to the horizontal screen perform secondary screening on the horizontal screen, the rest sintered materials meeting the production requirements can be screened down to a lower collecting device through the horizontal screen, and the large sintered materials are left on the horizontal screen to complete screening of the sintered materials. The sintering material is sieved jointly to slope screen cloth and horizontal screen cloth, and the probability of sintering material pile up at the slope screen cloth has been reduced simultaneously in the setting of strip spare for the screening of sintering material can be carried out continuously.

Further, the bar-shaped member is cylindrical. The cylindrical strip-shaped piece is directly used, the material is simple and easy to obtain, and the preparation process of the inclined screen is simplified.

Further, the strip-shaped piece is a stainless steel bar. The stainless steel bars are used as strip-shaped pieces, so that the stainless steel bars are in contact with the sintering materials, the strip-shaped pieces are not easy to corrode, and the service life of the inclined screen is prolonged.

Furthermore, be provided with the buckle on the slope frame, the buckle can be dismantled the both ends of fixed strip spare. According to different production conditions, the requirement on the particle size of the sintering mineral aggregate can be changed, the strip pieces on the inclined screen are correspondingly disassembled and installed, the size of the gap between every two adjacent strip pieces can be changed, the specification of the sintering mineral screening is changed, and the screening system can be suitable for different screening and production requirements through simple operation.

Further, the inclination angle of the strip-shaped part is 30-45 degrees. The inclination angle range can ensure that the sintering materials are primarily screened on the inclined screen as fully as possible, and the sintering materials on the inclined screen after primary screening can smoothly slide to the horizontal screen along the strip-shaped part.

Further, the horizontal screen is a mesh screen. Along with the continuous gliding of bold sintering material and part of the sintering material that accords with the requirement on the horizontal screen cloth, latticed horizontal screen cloth not only can further sieve the sintering material above that, can also increase its bearing capacity, avoids because the bold sintering material that piles up on the horizontal screen cloth increases and damages.

Furthermore, the frame of slope frame and horizontal screen cloth all is provided with shakes the piece. The vibrating piece drives the inclined screen and the horizontal screen to vibrate in the screening process, so that the screening of the sintering materials on the vibrating piece is easier and more sufficient, and meanwhile, the sintering materials on the inclined screen are easier to slide down onto the horizontal screen, and the screening effect of the sintering materials is improved.

Further, sintering material screening system still includes the conveyer belt that is used for carrying out the transmission to the sintering material, and the conveyer belt includes the feed opening, and the feed opening is located the slope screen cloth directly over.

The sintering material is transported through the conveyer belt and falls to the inclined screen net, continuously sieves, does not need personnel to transport the sintering material, realizes the automation of sintering material screening.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments are briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive efforts and also belong to the protection scope of the present application.

FIG. 1 is a front view of a frit screening system provided in an embodiment of the present application;

FIG. 2 is a top view of a frit screening system provided in an embodiment of the present application;

fig. 3 is a top view of a screening device provided in an embodiment of the present application.

Icon: 100-a sinter screening system; 200-a conveyor belt; 210-a feed opening; 300-a screening device; 310-inclined screen; 311-inclined rims; 312-a bar; 320-horizontal screen.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

Fig. 1 is a front view of a frit screening system provided in an embodiment of the present application, and fig. 2 is a top view of the frit screening system provided in an embodiment of the present application. Referring to fig. 1 and 2, the present embodiment provides a sinter material screening system 100, which includes a conveyor belt 200, a screening device 300, and a lower collecting device (not shown). The conveyor belt 200 includes a feed opening 210, the feed opening 210 being located above the screening device 300. The lower collecting device for collecting undersize is located below the sieving device 300. The sintering materials are conveyed to the upper part of the screening device 300 through the conveyor belt 200 and fall onto the screening device 300 through the discharge opening 210, so that the sintering materials are screened on the screening device 300, and the sintering materials meeting the production requirements fall into the lower collecting device through the screening device 300 for production and use.

Fig. 3 is a top view of a screening device provided in an embodiment of the present application. Referring to fig. 1 to 3, the sieving apparatus 300 includes an inclined screen 310 and a horizontal screen 320, the inclined screen 310 is disposed to be inclined downward, a lower end thereof is connected to one end of the horizontal screen 320, and the other end of the horizontal screen 320 extends away from the inclined screen 310. In this embodiment, the feeding opening 210 is actually located right above the inclined screen 310, the sinter to be sieved falling from the feeding opening 210 first falls on the inclined screen 310, and is primarily sieved by the inclined screen 310, while the sinter that is not sieved by the inclined screen 310 slides down onto the horizontal screen 320 through the inclined screen 310, and is secondarily sieved by the horizontal screen 320. The inclined screen 310 and the horizontal screen 320 together screen the sinter, and the sinter can be sufficiently screened.

In order to make the screening effect of preliminary screening better, set up the structure of slope screen cloth 310, slope screen cloth 310 includes strip 312 that many intervals that slope frame 311 and slope were placed set up, and the both ends of every strip 312 all are fixed with slope frame 311, and make the extending direction of strip 312 unanimous with the incline direction of slope frame 311, and strip 312 is convex arc in its axial cross-section of perpendicular to. Optionally, in this embodiment, the strip 312 is a cylindrical stainless steel rod, which is simple and easy to obtain, and the inclined screen 310 is simple and easy to manufacture, and meanwhile, is not easy to corrode, so that the service life of the inclined screen 310 is prolonged. At this time, one end of the horizontal screen 320 is actually connected to the lower end of the inclined frame 311, and the other end of the horizontal screen 320 extends toward the end far from the inclined frame 311. Inclined rim 311 is actually inclined downwards, as is bar 312.

During the primary screening of the sinter on the inclined screen 310, the sinter falling on the inclined screen 310 will fall along the arcuate configuration of the bars 312 into the gaps between adjacent bars 312, and some of the sinter meeting the production requirements will fall through the gaps to the lower collection device. The frits that are not sieved through the inclined screen 310 slide down to the horizontal screen 320 along the extending direction of the bars 312, and due to the arc-shaped structure of the bars 312, when the large frits fall into the gaps between the adjacent bars 312, the contact area between the large frits and the bars 312 is reduced, the friction between the large frits and the adjacent bars 312 is reduced, and the large frits can slide down to the horizontal screen 320 connected with the lower end of the inclined frame 311 more easily. The strip-shaped member 312 with the arc-shaped structure enables the sintering materials which are not sieved by the inclined screen 310 to slide onto the horizontal screen 320 more easily, reduces the probability of sintering materials being accumulated on the inclined screen 310, improves the primary sieving effect, and continuously performs the sieving of the sintering materials.

In other embodiments, the bar 312 may also be a semi-cylinder with the arc-shaped surface facing upward and fixed to the inclined frame 311.

The size of the bars 312 and the number of bars mounted on the inclined frame 311 depend on the requirements for the sintered ore screening. Specifically, if the particle size range of the sintering material entering the lower collecting device is required to be small, the number of the inclined frames 311 installed can be increased accordingly, and the size of the gap between two adjacent bars 312 can be reduced, thereby reducing the particle size of the sintering material that can pass through the inclined screen 310. As for the specification setting of the bars 312, when the amount of the sintering material sieve is increased, under the condition that the particle size range of the sintering material entering the lower collecting device is not changed, the specification of the bars 312 can be correspondingly reduced to be thinner, so that the number of the bars 312 is increased on the basis of not changing the size of the gap between two adjacent bars 312, the number of the gaps is further increased, and the passage of the sintering material falling to the lower collecting device is increased.

In order to make the screening system that this application embodiment provided be suitable for different screening requirements more convenient, set up buckle (not shown in the figure) on slope frame 311, the buckle can be dismantled the both ends of fixed strip 312. Can carry out corresponding dismantlement and installation to the strip 312 on the inclined screen 310 through the buckle, and then change the clearance size between two adjacent strips 312, change the specification to the sintering deposit screening.

To further improve the effect of the primary screening, the inclination angle of strip 312 is set to 30 ° to 45 °, optionally in this embodiment the inclination angle of strip 312 is 30 °, 35 °, 40 ° or 45 °. The strip-shaped member 312 is obliquely arranged, the inclination angle is also 30-45 degrees, the range of the inclination angle can ensure that the sintering materials are primarily screened on the inclined screen 310 as fully as possible, and meanwhile, the sintering materials primarily screened on the inclined screen 310 can smoothly slide to the horizontal screen 320.

In other embodiments, the inclined angle may be other inclined angles, such as 50 ° or 60 °, and the inclined angle is set to ensure that the sintering material is sufficiently primarily screened on the inclined screen 310, and the sintering material on the inclined screen 310 that is not screened by the inclined screen 310 can smoothly slide down onto the horizontal screen 320.

With continued reference to fig. 1-3, in order to continuously screen the sinter, in the embodiment of the present invention, the horizontal screen 320 is provided in a grid shape, and the width of the grid is consistent with the width of the gap between two adjacent bars 312. The latticed horizontal screen 320 not only can further screen the sintering material, but also can increase the bearing capacity of the horizontal screen 320, avoid damage caused by the increase of large sintering materials accumulated on the horizontal screen 320, and enable the screening to be continuously carried out.

In other embodiments, horizontal screen 320 may also include horizontal rims and horizontal bars 312 that conform to the shape of inclined screen 310 except when not inclined. In this case, two screens identical to the inclined screen 310 may be directly connected, one inclined screen 310 may be provided, and one horizontal screen 320 may be provided.

A snap-fit structure similar to the slanted screen 310 may also be provided on the rim of the horizontal screen 320. In this embodiment, since the horizontal screen 320 is in a grid shape, one or more layers of screens with different grid sizes can be added to a single horizontal screen 320 by snapping the screens onto the horizontal screen 320, so as to change the screening specification of the horizontal screen 320. Alternatively, one or more layers of screen mesh of the same mesh size can be added to a single screen mesh using snaps to further increase the load bearing capacity of the horizontal screen mesh 320.

Under the condition that horizontal screen 320 set up the buckle structure, it can also realize another function, when the bold sintering deposit that piles up on the upper screen was too much promptly, can loosen the buckle, move the upper screen to other places that do not influence production, in time clear up the bold sintering material on it, reduce the risk that horizontal screen 320 damaged, and because still have other horizontal screen 320's wire side in the screening system, when clearing up the bold sintering material on it, the screening of sintering material still can normally go on, improve screening efficiency.

In order to further improve the effect of sieving the sintering material, vibration members (not shown) are disposed on the inclined frame 311 and the horizontal screen 320. The vibrating piece drives the inclined screen 310 and the horizontal screen 320 to vibrate in the screening process, so that the screening of the sintering materials on the inclined screen 310 is easier, and meanwhile, the sintering materials on the inclined screen 310 are easier to slide down onto the horizontal screen 320.

The screening mode of the sintering material screening system 100 provided by the embodiment of the application is as follows:

with continued reference to fig. 1-3, the sinter screening system 100 provided in the embodiment of the present application is started to operate the conveyor 200 and the vibrating member, the sinter to be screened is transported by the conveyor 200, and falls onto the inclined screen 310 from the discharge opening 210 located right above the inclined screen 310, primary screening is performed on the vibrating inclined screen 310, part of the sinter meeting the production requirement falls into the lower collecting device from the gap between the adjacent bars 312, the non-screened sinter smoothly slides down to the vibrating horizontal screen 320 along the extending direction of the bars 312 under the action of vibration, the arc structure of the bars 312 and the self gravity, and secondary screening is performed on the vibrating horizontal screen 320, the sinter meeting the production requirement continues to fall into the lower collecting device from the horizontal screen 320, and the large sinter not meeting the production requirement remains on the horizontal screen 320, and fully and continuously screening the sintering material.

With the continuous conveying of the conveyor belt 200 to the sinter to be screened, the screening of the sinter on the inclined screen 310 and the horizontal screen 320 is continuously carried out, when the large sinter left on the horizontal screen 320 reaches a certain amount, the large sinter is sequentially stopped according to the sequence of the conveyor belt, the vibrating piece arranged on the inclined frame 311 and the vibrating piece arranged on the frame of the horizontal screen 320, the large sinter on the horizontal screen 320 is cleaned, and after the cleaning is finished, the vibrating piece arranged on the frame of the horizontal screen 320, the vibrating piece arranged on the inclined frame 311 and the conveyor belt are sequentially started to continuously screen the sinter.

Or, when the horizontal screen 320 is provided with multiple layers through the buckles, after the conveyor belt 200 and the vibrating piece stop working, the buckles of the horizontal screen 320 are loosened, the upper layer of screen is removed, and after a new layer of horizontal screen 320 is fixed by the buckles, the vibrating piece and the conveyor belt 200 can be started to continue screening. When the large materials on the moved upper-layer screen are cleaned, the screening of the sintering materials is also in progress, the downtime can be shortened, and the production efficiency can be improved.

The above description is only a few examples of the present application and is not intended to limit the present application, and various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a sintering material screening system, its characterized in that, includes screening plant and lower aggregate unit, the aggregate unit is located down screening plant's below for collect undersize thing, screening plant is including slope screen cloth and horizontal screen cloth, the slope screen cloth includes the strip spare that many intervals that slope frame and slope set up, the lower extreme of slope frame with horizontal screen cloth's one end is connected, just horizontal screen cloth's the other end orientation is kept away from the one end of slope frame extends, every the both ends of strip spare all with the slope frame is fixed, just the extending direction of strip spare with the incline direction of slope frame is unanimous, the strip spare is convex arc in its axial cross-section of perpendicular to.

2. The frit screening system of claim 1, wherein the strip is cylindrical.

3. The sinter material screening system of claim 2, wherein the strip is a stainless steel rod.

4. The frit screening system according to claim 1, wherein the inclined frame is provided with a buckle, and the buckle detachably fixes two ends of the bar-shaped member.

5. The sinter material screening system of claim 1, wherein the inclination angle of the bars is 30 ° to 45 °.

6. The sinter material screening system of claim 1, wherein the horizontal screen is a mesh screen.

7. The sinter material screening system of claim 1, wherein the inclined frame and the frame of the horizontal screen are provided with shaking members.

8. A sinter material screening system according to any one of claims 1 to 7, further comprising a conveyor for conveying sinter material, the conveyor comprising a discharge opening, the discharge opening being located directly above the inclined screen.