KR20200046951A - A gangue separator of coal for coke making - Google Patents

Abstract

Provided is a gangue separation device for raw coal, comprising: a primary screen having an inclination angle and including a pipe portion having an equally spaced pipe in a direction parallel to a feed direction of the raw coal and passing through the raw coal downward during transportation and a plate portion connected to one end of the pipe portion; and a raw coal stopper having an equally spaced incision portion and positioned so that one end is in contact with an upper portion of the primary screen. The raw coal stopper transfer the gangue to the plate portion by passing the same through the incision portion and moves the raw coal to a hopper positioned at a lower portion of the pipe portion without passing through.

Description

A gangue separator of coal for coke making}

The present invention relates to a device for separating gangue from raw coal, which is transported by natural driving without an external driving source, and a gangue separating device for raw coal having a primary screen for separating gangue from raw coal and a stopper for raw coal It is about.

In the steelmaking process, the coke production process is largely divided into a coal charcoal process, a coke oven process, and a chemical conversion process, of which the coal charcoal process is a process of treating fuel coal used for coke production.

In general, the coal briquetting process refers to a process of discharging coal that has been imported and transporting it to a reclaimer, transporting it to a conveyor, and then moving it to a crusher through a surge bin.

Coal that has moved into the surge bin is mined from mines and contains gangue, debris, wood chips, and iron fragments, so it is necessary to select a raw coal before moving it to a crusher. Therefore, the purpose of the surge bin facility can be seen to produce crushed particles of appropriate particle size and high-quality coke by supplying the raw coal discharged quantitatively and uniformly to the crusher.

In order to sort high-quality raw coal, a surge bin facility operates a primary screen consisting of a feeder and a plurality of pipes P as shown in FIG. 1 for 24 hours. This can cause idling of the equipment, which can lead to unnecessary waste of power. In addition, the driving life of the primary screen (primary screen) may be reduced due to 24 hours operation, there may be a problem that oil spills from the motor provided in the driving device to contaminate the raw coal.

1. Korean Registered Patent No. 10-1463304 (Registered on Nov. 12, 2014) 2. Korean Patent Publication No. 10-2018-0029487 (published March 21, 2018)

An object of the present invention is to provide a gangue separating device of raw coal that can reduce the idling and power consumption of the equipment.

The objectives of the embodiments of the present invention are not limited to those mentioned above, and other objects not mentioned will be clearly understood by those skilled in the art from the following description. .

In order to solve the above problems, the present invention includes a pipe part having an equally spaced pipe in a direction parallel to the conveying direction of the raw coal, and includes a pipe portion for passing the raw coal downward during transportation and a plate portion connected to one end of the pipe portion. It has a primary screen (primary screen) having a, and the upper end of the primary screen is located so as to come into contact with one end, and is provided with a stopper (stopper) having an equally spaced incision, wherein the feedstock stopper, the gangue is the incision It is possible to provide a gangue separation device for raw coal, characterized in that it passes through the portions and is transferred to the plate portion, and the raw coal is moved to a hopper located below the pipe portion without passing.

The raw grenade stopper may include a roller having a rotating shaft passing through the center, and a skirt connected to one side of the outer circumferential surface of the roller and having an equally spaced incision.

The primary screen is provided with the inclination angle of 30 to 50 degrees to move gangue and raw coal in a natural driving method by gravity.

The pipe portion may have a length of 1 to 2 m in the transport direction.

The gangue separation apparatus for raw coal according to an embodiment of the present invention has an advantage of grafting the primary screen into a natural driving method and reducing the power consumption by integrating the raw coal stopper together to separate the gangue. In addition, since there is no operation of a separate device for driving the primary screen, there is an advantage that the equipment can be repaired during the gangue separation process, thereby reducing the process cost.

1 is a view showing a primary screen of a conventional raw gangue gangue separation device,
Figure 2 is a perspective view showing a gangue separation device of a raw coal having a primary screen according to an embodiment of the present invention,
Figure 3 is a perspective view showing a primary screen and a raw coal stopper according to an embodiment of the present invention,
4 is a view showing an apparatus for separating gangue of raw coal according to an embodiment of the present invention.

Advantages and features of embodiments of the present invention, and methods of achieving them will be apparent with reference to embodiments described below in detail along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only the embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains It is provided to completely inform the person having the scope of the invention, and the present invention is only defined by the scope of the claims. The same reference numerals refer to the same components throughout the specification.

In describing embodiments of the present invention, when it is determined that a detailed description of known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. In addition, terms to be described later are terms defined in consideration of functions in an embodiment of the present invention, which may vary according to a user's or operator's intention or practice. Therefore, the definition should be made based on the contents throughout this specification.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing a primary screen of a conventional raw coal gangue separation apparatus, Figure 2 is a perspective view showing a gangue separation apparatus of a raw coal having a primary screen according to an embodiment of the present invention, Figure 3 is the present invention It is a perspective view showing a primary screen and a raw coal stopper according to an embodiment, and FIG. 4 is a view showing a gangue separation device for the raw coal according to an embodiment of the present invention.

2 to 4, the gangue separation apparatus for raw coal according to an embodiment of the present invention is a primary screen (primary) for separating raw material (C) supplied from a feeder (feeder) 20 into gangue (S) and raw coal. screen; 100), and a raw coal stopper 200. The feeder 20 is connected to a surge bin (10) to supply raw material (C) to the gangue separation device of raw coal.

In detail, the pipe portion 110 of the primary screen 100 is located below the feeder 20, and the pipe portion 110 is equally spaced in a direction parallel to the feed direction X of the raw coal. It is provided with a pipe of the raw material (C) during the transfer of the raw coal can be passed through the lower (Y direction).

In addition, the primary screen 100 may include a plate portion 120 connected to one end of the pipe portion 110, and the plate portion 120 maintains the facility even when it collides with the gangue S It may be desirable to be made of a stainless steel material.

The primary screen 100 may have an inclination angle θ, and furthermore, an inclination angle θ of 30 to 50 degrees may be used to move gangue and raw coal in a natural driving method by gravity. Therefore, the primary screen 100 can operate without external power, and can separate the raw coal and gangue (S).

When the inclination angle θ is 30 degrees or less, the movement of gangue can be stopped in the pipe portion 110, and when it is 50 degrees or more, the movement speed of the raw coal is increased and the gangue is moved to the plate portion 120 together with the gangue, thereby losing the raw coal. This can happen.

The pipe portion 110 may have a length of 1 to 2 m in the transport direction. Even if the inclination angle θ is 30 degrees or more, if the length of the pipe portion 110 exceeds 2 m, the movement of the gangue may be stopped in the pipe portion 110, and if the length is within 1 m, the raw coal is not properly separated and the raw coal is lost. This can happen.

Furthermore, a bracket 130 may be further provided between the pipe portion 110 and the plate portion 120 for firm fixing. For support of the plate portion 120 toward the chute 400, a support angle 140 may be further provided.

A raw coal stopper 200 having an equally spaced incision (A) may be located on the upper portion of the primary screen 100, and one end of the raw coal stopper 200 is positioned to contact the primary screen 100. can do.

In detail, the raw grenade stopper 200 includes a roller 220 through which the rotating shaft 210 passes through the center, and a skirt having an equally spaced incision (A) connected to one side of the outer peripheral surface of the roller 220 ( skirt; 230). A coupling bar 240 may be positioned between the skirt 230 and the roller 220 to connect the skirt 230 and the outer peripheral surface of the roller 220.

The skirt 230 has a weight so that only the gangue can pass through, and it may be preferable to be made of a material that is easy to cut, and may be made of, for example, a rubber material. In addition, the equally spaced incision A may have a width of 5 to 15 mm at an interval through which the gangue can pass.

Therefore, due to the raw coal stopper 200, the gangue (S) is passed between the incision (A) and transferred to the plate portion 120, the raw coal is not passed through the pipe portion 110 is located below By moving to the hopper 300, it is possible to separate the gangue without losing the raw coal. Since the length of the pipe portion 110 is shorter than that of the conventional device as shown in FIG. 1, the raw coal is moved in a small amount along with the gangue through the pipe, so that the attached coal is formed at the end of the plate portion 120, resulting in loss of the raw coal. Although it may occur, the loss of raw coal can be prevented by providing the raw coal stopper 200. Therefore, the raw coals collide with the skirt 230 and move to the lower hopper 300, and the gangue S may move to the chute 400 by being separated from the raw coals through the skirt 230 due to the inclination angle θ.

The gangue separation device of raw coal according to an embodiment of the present invention has an inclination angle θ on the primary screen and applies a natural driving method due to gravity, thereby reducing power consumption and separating gangue due to a non-power method. There is this. In addition, since there is no operation of a separate device for driving the primary screen, there is an advantage that the equipment can be repaired during the gangue separation process, thereby reducing the process cost. Furthermore, by providing the raw coal stopper together, there is an advantage of preventing the loss of raw coal.

Furthermore, the gangue separation device for raw coal according to the embodiment of the present invention can be driven by a power method according to conditions. As described above, it is possible to separate the gangue without power without normally using power, but in the rainy season, the driving device may be operated to prevent the pipe portion 110 of the raw coal from being exposed to external moisture. For example, by driving the motor 30 and an exciter 40 connected thereto, vibration may be applied to the primary screen 100 to perform a process of separating raw coal and gangue.

Hereinafter, the gangue separating device of the raw coal according to the present invention will be described through the following experimental examples. The following experimental examples are only examples for explaining the present invention, and the present invention is not limited thereto.

Experimental Example 1

The pipe section 110 of the primary screen 100 was manufactured with nine pipes of 4 m in length at a spacing of 90 mm, and the plate section 120 was made of a stainless steel plate with a thickness of 3.2 mm, a width of 1 m, and a width of 2.2 m. It was prepared. The raw coal stopper 200 was manufactured by coupling the bar 240 for bonding to one side of the roller 220 having a length of 1 m and bolting the rubber material skirt 230 with the bar 240 for bonding. At this time, the skirt 230 has a size of 440 mm in length and 960 mm in width, and 11 cutouts A are formed at equal intervals.

Then, the results of the transfer of gangue according to the angle of the primary screen were investigated.

Experimental Example 2

The pipe portion 110 of the primary screen 100 was manufactured with nine pipes at a spacing of 90 mm, and the plate portion 120 was manufactured using a stainless steel plate having a thickness of 3.2 mm, a width of 1 m, and a width of 2.2 m. A raw coal stopper 200 was manufactured by coupling the bar 240 for bonding to one side of the roller 220 having a length of 1 m, and bolting the rubber material skirt 230 with the bar 240 for bonding. At this time, the skirt 230 has a size of 440 mm in length and 960 mm in width, and 11 cutouts A are formed at equal intervals.

Then, the angle of the primary screen 100 was fixed at 30 degrees, and the results of transport of gangue along the length of the pipe portion 110 were investigated.

result

The results of transport of gangue according to the angle of the primary screen of Experimental Example 1 are shown in Table 1 below.

Primary screen angle 10 ° 14 ° 18 ° 22 ° 26 ° 30 ° 34 ° 38 ° 42 ° 46 ° Transfer fail fail fail fail fail pass pass pass pass pass

The results of transport of gangue along the length of the pipe portion 110 of Experimental Example 2 are shown in Table 2 below.

10 times Pipe length (m) 4 3.5 3.0 2.5 2.0 1.0 Transfer 40% 50% 70% 90% 100% 100%

Therefore, it was found from Experimental Example 1 and Experimental Example 2 that the gangue was transferred in a non-powered natural driving method at an angle of 30 degrees or more of the primary screen and 2.0 m or less in the length of the pipe to separate it from the raw coal.

As described above, the apparatus for separating gangue of raw coal according to an embodiment of the present invention has an advantage of integrating a primary screen into a natural driving method, and having a raw coal stopper together to reduce power consumption and segregate gangue. . In addition, since there is no operation of a separate device for driving the primary screen, there is an advantage that the equipment can be repaired during the gangue separation process, thereby reducing the process cost.

In the above description, various embodiments of the present invention have been presented and described, but the present invention is not necessarily limited thereto, and a person having ordinary knowledge in the technical field to which the present invention pertains may depart from the technical spirit of the present invention. It will be readily apparent that branch substitution, modification and modification are possible.

10; Sujibin,
20; Feeder,
30; motor,
40; Exciter,
100; Primary Screen,
200; Raw coal stopper,
300; Hopper,
400; suit

Claims (4)

A primary screen having a pipe having an equal interval in a direction parallel to the transport direction of the raw coal and including a pipe portion for passing the raw coal downward during transportation and a plate portion connected to one end of the pipe portion, and having an inclination angle. )and,
It is located so that one end is in contact with the upper portion of the primary screen, and is provided with a raw coal stopper having an equally spaced incision,
The raw coal stopper, the gangue is passed through the incision is transferred to the plate portion, the raw coal is gangue separating device of the raw coal, characterized in that to move to the hopper located below the pipe portion without passing.
According to claim 1,
The raw coal stopper comprises a roller having a rotating shaft penetrating through the center, and a skirt connected to one side of the outer circumferential surface of the roller and having an equally spaced incision.
According to claim 1,
The primary screen is provided with the inclination angle of 30 to 50 degrees, gangue separation device of raw coal, characterized in that for moving the gangue and raw coal in a natural driving method by gravity.
According to claim 1,
The pipe portion, gangue separation device of raw coal, characterized in that having a length of 1 to 2m in the transport direction.

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