CN210022845U

CN210022845U - Screening device

Info

Publication number: CN210022845U
Application number: CN201920593349.9U
Authority: CN
Inventors: 李彦勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2020-02-07
Anticipated expiration: 2029-04-28

Abstract

The utility model discloses a screening plant belongs to the technical field of coke equipment, solves the great technical problem of the hierarchical cost of coke granule among the prior art. The device comprises a conveying mechanism and a plurality of stages of coke sieve sheets which are sequentially obliquely and alternately connected and are positioned on the conveying mechanism, wherein: the conveying mechanism is used for conveying the coke to the multi-stage coke screening piece; the multi-stage coke screening piece is used for classifying and screening coke particles according to the required size by means of the dead weight of the coke and then conveying the coke particles to a storage device or a vehicle. The utility model discloses be used for increasing the function of coke granularity screening for solve the great problem of the coke particle grading cost among the prior art and improve the availability factor of coke and the efficiency of on-vehicle transportation.

Description

Screening device

Technical Field

The utility model relates to the technical field of coke equipment, in particular to screening plant.

Background

Coke is one type of solid fuel. When the coal is heated to 1150 ℃ in the coke oven without oxygen, organic matters in the coal are decomposed, and after volatile products escape, the residual nonvolatile products are coke. The coke is divided into large coke, medium coke, small coke, coke powder and the like according to the particle size, and is mainly used for smelting steel or other metals. The particle size of coke is important in blast furnace smelting, the particle size refers to the particle size of the coke, and in the prior art, the coke grading and loading methods mostly adopt a coke screening tower plus a vibrating screen or a method of directly loading the coke.

The inventor finds that the prior art has at least the following defects:

1. the coke screening tower and the vibrating screen in the prior art can not screen coke in a grading way, and has low practicability, large investment and more parts.

2. The direct mode with the coke loading among the prior art can make impurity in the coke transported in the lump, improves the cost of transportation.

In view of this, the present invention is especially provided.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at solving the technical problem that the equipment in the prior art can not sieve the coke according to the granularity grade, and provides a simple and efficient sieving device.

The utility model provides a technical scheme that its technical problem adopted is: a screening device comprising a conveying mechanism and sequentially inclined and staggered multi-stage coke screening elements located above the conveying mechanism, wherein:

the conveying mechanism is used for conveying the coke to the multi-stage coke screening piece;

the multi-stage coke screening part is used for conveying coke particles to a storage device or a vehicle after grading the coke particles according to the required size by means of the dead weight of the coke.

In a preferred or alternative embodiment, the device further comprises a support, the support is used for fixing the conveying mechanism and the multi-stage coke screening piece and forms a height difference with the ground, the conveying mechanism is positioned above the multi-stage coke screening piece, and coke passes through the multi-stage coke screening piece by using the self weight as the power, and then is automatically separated into coke with different size grades.

In a preferred or alternative embodiment, the multi-stage coke screening element is a two-stage screening element, and comprises a first screening element and a second screening element obliquely connected with the first screening element, and the first screening element and/or the second screening element are/is fixed with the bracket; the first sieve piece is connected with the conveying mechanism and is positioned above the second sieve piece.

In a preferred or alternative embodiment, the conveyor mechanism is mounted on the frame in an upwardly inclined manner at an angle of 100 ° to 125 ° to the first sifter member.

In a preferred or alternative embodiment, the first sifter element is connected to the second sifter element at an angle of 70 ° to 80 °.

In a preferred or alternative embodiment, the first sieve member is arranged in a U-shaped groove structure and is provided with a plurality of first through holes for separating coke.

In a preferred or alternative embodiment, the second sieve plate member is arranged in a U-shaped groove structure and is provided with a plurality of second through holes for separating coke, and the diameter of the second through holes (32) is smaller than that of the first through holes (31).

In a preferred or alternative embodiment, the first through-hole has a hole diameter of 30mm to 25 mm.

In a preferred or alternative embodiment, the second through hole has a hole diameter of 25mm to 20 mm.

In a preferred or alternative embodiment, the first and/or second sifter elements are provided with reinforcement elements to prevent deformation of the first and/or second sifter elements.

The utility model has the advantages that: conveying mechanism carries the coke to multi-stage coke screening spare on, for multi-stage coke screening spare relies on the dead weight of coke to provide the condition, multi-stage coke screening spare is the sieve piece of a plurality of different screening grades and inclines in proper order and connect, will follow conveying mechanism carries the coke of coming, separates the coke according to the size of granularity, carries out the particle classification to the coke before the loading, with the on-vehicle rate of utilization of shipment coke of greatly increased, and sieve the coke of different granularities moreover, can load according to the requirement to the coke granularity.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a screening device of the present invention;

FIG. 2 is a schematic structural view of a screening member of the screening device of the present invention;

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are only a few embodiments of the invention, and are not exhaustive. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any creative effort, shall fall within the protection scope of the present invention.

The screening device shown in figure 1 is mainly used for grading the granularity grade of coke, and comprises a conveying mechanism and a plurality of stages of coke screening parts which are positioned on the conveying mechanism and are sequentially connected in an inclined and staggered manner, wherein the coke screening parts are obliquely placed by using the self weight of the coke as power to grade the coke according to different granularity. And the conveying mechanism is used for conveying the coke to a multi-stage coke screening part, for example, a belt roller conveying device 4 with the width of 800 mm. Multistage coke screening piece, for example, a plurality of "U" style of calligraphy groove structure net sieve piece, both ends set up with open mode, adopt electric welding fixed connection between a plurality of net sieve pieces, set up the different through-hole of a plurality of aperture sizes on every net sieve piece from top to bottom, rely on the coke dead weight to grade coke particle according to required size. The product of the utility model is the transportation of direct loading after screening coke granule grade, the on-vehicle cost of transportation of greatly reduced. Conveying mechanism carries the coke to multistage coke screening piece, and on the multistage coke screening piece of conveying mechanism position, for the dead weight that multistage coke screening piece relied on the coke provides the condition, multistage coke screening piece is the screening piece of a plurality of different screening grades and inclines in proper order to connect, will follow the coke that conveying mechanism carried is come is sieved the separation according to the granularity to the coke, carries out the rate of utilization of the on-vehicle shipment coke of stage treatment greatly increased to the coke granule before the loading, and with the differentiation that the coke of different granularities goes on, can load according to the requirement to the coke granularity.

As an alternative embodiment, the device also comprises a bracket 1, wherein the bracket 1 is used for fixing the conveying mechanism and the multi-stage coke screening piece and forms a height difference with the ground, for example, the conveying mechanism is arranged on the bracket 1 in an inclined mode to facilitate conveying the coke to the conveying mechanism, and the multi-stage coke screening piece is directly loaded while the screening is finished and is convenient to transport. The conveying mechanism is positioned on the multi-stage coke screening part, and the coke is automatically distinguished into cokes with different sizes and grades after passing through the multi-stage coke screening part by taking the dead weight as the power.

Furthermore, support 1 is the movable support, and every foot of support all installs removal wheel hub, increases the convenience of field operation to the support use.

As an optional embodiment, the multi-stage coke screening part is a two-stage screening part and comprises a first screening part 21 and a second screening part 22 obliquely connected with the first screening part 21, the first screening part 21 and/or the second screening part 22 are fixedly connected with the bracket 1 through a fixing rod 5, the first screening part 21 is connected with a conveying mechanism, the coke is prevented from leaking and hurting people, and the first screening part 21 is positioned above the second screening part 22. Or, the first sifter 21 is connected with the second sifter 22 through the fixing rod 5, and the fixing rod 5 may be a telescopic rod in the prior art, so as to facilitate the adjustment of the horizontal setting angle of the first sifter 21.

As an alternative embodiment, the conveyor is mounted on the frame 1 in an upwardly inclined manner, for example, at an angle of 10 ° to 30 ° to the horizontal and 100 ° to 125 ° to the first sifter member 21, the function of the structure being: make the coke after sieving from first sieve piece 21, drop in the junction of the first sieve piece 21 of neighbour and second sieve piece 22 for coke after the filtration can rely on the dead weight to sieve once more, sieve for the secondary on second sieve piece 22 and leave sufficient stroke of sieving, improve the precision and the efficiency of sieving.

As an alternative embodiment, the first sifter member 21 is connected to the second sifter member 22 at an angle of 70-80 degrees. The secondary filtration is generally the coke granularity screening of 25mm to 20mm, the aperture ratio is small, the screening stroke is long, and the improvement of the screening efficiency of the screen sheet is facilitated.

As an alternative embodiment, the first sieve member 21 is provided in a groove structure of a U shape and is opened with a plurality of first through holes 31 for sieving coke. The aperture of the first through hole 31 is 30mm to 25mm, and the requirement of the coke granularity standard is met. The coke with the diameter less than 25mm is filtered to the lower part of the first sieve piece 21 through the first through hole 31, and the coke with the diameter more than 25mm is directly conveyed to the truck after being sieved.

As an alternative embodiment, the second sieve member 22 is provided in a U-shaped groove structure, as shown in FIG. 2, both ends of the U-shaped groove are provided in an open structure, and a plurality of second through holes 32 are opened for sieving coke. The second through holes 32 have a hole diameter of 25mm to 20mm, and coke below 25mm is transported to the ground through the second sieve member 22. Through the setting of this structure, at the coke that percutaneous band pulley carried, after first sieve piece 21 and second sieve piece 22 in proper order, the granularity of coke divide into three kinds, one is more than 25mm, and another kind is 25mm to 20mm, is less than 20 mm's coke secondly to carry out the screening of granularity with the gravity of coke as output power, not only improved the rate of utilization of coke, greatly reduced vehicle-mounted transportation's cost moreover.

Further, as shown in fig. 2, the first sieve member 21 and/or the second sieve member 22 are provided with a reinforcing member 100 for preventing the first sieve member and/or the second sieve member from deforming, the reinforcing member 100, for example, a steel bar, is provided at the position of the center of gravity of the first sieve member 21 and is perpendicular to the center line, and is fixed on the top of two side walls of the reinforcing member 100 in a welding manner, and the function is to avoid the situation that the first sieve member 21 deforms or bends to affect the filtration of the coke under the impact of long-term coke external force.

While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and any person skilled in the art can easily conceive of changes and substitutions within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A screening device for the graded separation of coke particles, comprising a conveying mechanism and a plurality of grades of coke screening elements which are positioned on the conveying mechanism and are connected in turn in an inclined way, wherein:

the multi-stage coke screening part classifies coke particles according to the required size by means of the dead weight of coke, and then conveys the coke particles to a storage device or a vehicle.

2. A screening device according to claim 1, further comprising a bracket (1), wherein the bracket (1) is used for fixing the conveying mechanism and the multi-stage coke screening member and forms a height difference with the ground, the conveying mechanism is positioned above the multi-stage coke screening member, and coke passes through the multi-stage coke screening member by using self weight as power and is automatically separated into coke with different size grades.

3. A screening device according to claim 2, characterized in that said multi-stage coke screening is a two-stage screening comprising a first screening member (21) and a second screening member (22) connected obliquely to said first screening member (21), said first and/or second screening member (21, 22) being fixed to said frame (1); the first sieve piece (21) is connected with the conveying mechanism and is positioned above the second sieve piece (22).

4. A screening device according to claim 3, wherein the conveyor means is mounted on the carrier (1) in an upwardly inclined manner at an angle of 100 ° to 125 ° to the first screen member (21).

5. A screening device according to claim 4, wherein the first screening element (21) is engaged at an inclined angle of 70 ° -80 ° to the second screening element (22).

6. A screening device according to claim 5, characterised in that said first screen member (21) is provided in a U-shaped fluted configuration and is provided with a plurality of first through holes (31) for filtering the coke.

7. A screening device according to claim 6, characterized in that said second screen member (22) is provided in a U-shaped groove configuration and is provided with a plurality of second through holes (32) for filtering coke, and the diameter of said second through holes (32) is smaller than the diameter of said first through holes (31).

8. A screening device according to claim 7, wherein the first through hole (31) has a bore diameter of 30mm to 25 mm.

9. A screening device according to claim 8, wherein the aperture of the second through holes (32) is 25mm to 20 mm.

10. A screening arrangement according to any one of claims 3 to 9, characterised in that the first (21) and/or second (22) screening element is provided with reinforcement (100) to prevent deformation of the first (21) and/or second (22) screening element.