Crushing Equipment

Abstract

To readily increase sieve efficiency of a vibration screen.SOLUTION: A crushing device 10 includes a vibration screen 100 and an elastic body 200. The elastic body 200 is arranged on the vibration screen 100. The elastic body 200 hangs down from a first part of the elastic body 200 which is positioned separately from the vibration screen 100 to a second part of the elastic body 200 which is positioned downstream of the vibration screen 100 as compared to the first part.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a crushing device. [Background technology]

[0002] In the crushing device, various objects are crushed by a vibrating screen. For example, the crushing device described in Patent Document 1 is equipped with a crushing means for crushing objects moving on the vibrating screen. This crushing means has a storage section for temporarily storing the objects moving on the vibrating screen, and a metal body for crushing the objects stored in the storage section. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2010-5578 A Summary of the Invention [Problem to be solved by the invention]

[0004] In a crushing device, it is desirable for the vibrating screen to have a high screening efficiency. In order to meet such a requirement, a crushing means may be used, as described in, for example, Patent Document 1. However, in this crushing means, it is necessary to modify the existing vibrating screen to provide a storage section.

[0005] One example of an object of the present invention is to easily increase the sieving efficiency of a vibrating screen. Further objects of the present invention will become apparent from the description of this specification. [Means for solving the problem]

[0006] One aspect of the present invention is A vibrating screen; An elastic body disposed on the vibration screen; Equipped with The elastic body is a crushing device that hangs down from a first portion of the elastic body that is located away from the vibrating screen to a second portion of the elastic body that is located downstream of the vibrating screen from the first portion. Effect of the Invention

[0007] According to the above aspect of the present invention, the screening efficiency of the vibrating screen can be easily increased. [Brief description of the drawings]

[0008] [Figure 1] FIG. 2 is a side view of the crushing device according to the embodiment. [Diagram 2] FIG. 2 is a front view of the crushing device shown in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In all the drawings, the same components are given the same reference numerals, and the description will be omitted as appropriate.

[0010] Fig. 1 is a side view of the disintegration device 10 according to the embodiment. Fig. 2 is a front view of the disintegration device 10 shown in Fig. 1.

[0011] The disintegrator 10 includes a vibrating screen 100, an elastic body 200, and a regulating portion 300.

[0012] The crushing device 10 crushes a predetermined object by a vibrating screen 100 and an elastic body 200. In this embodiment, the object crushed by the crushing device 10 is crushed material of various ores crushed by a HPGR (High Pressure Grinding Roll). Examples of the ores include sandstone, andesite, and limestone used as aggregates. Crushed material not crushed by the crushing device 10 is returned to the HPGR. Therefore, from the viewpoint of improving the productivity of crushed material, it is desirable that the sieving efficiency of the vibrating screen 100 is high. Note that the object crushed by the crushing device 10 is not limited to the examples given in this embodiment.

[0013] The vibrating screen 100 sieves out the above-mentioned objects. Specifically, the objects supplied onto the upper surface of the vibrating screen 100 from the supply port 110 are dropped below the vibrating screen 100 through the openings formed in the vibrating screen 100. The vibrating screen 100 vibrates in a diagonal forward direction with respect to the vertical direction in order to transport the supplied objects. Specifically, the vibrating screen 100 vibrates between a diagonal upward direction to the right and a diagonal downward direction to the left in FIG. 1. As a result, the objects placed on the upper surface of the vibrating screen 100 vibrate on the upper surface of the vibrating screen 100. Furthermore, the objects placed on the upper surface of the vibrating screen 100 move from the upstream to the downstream of the vibrating screen 100, specifically, from the left to the right in FIG. 1 and from the back to the front in FIG. 2. The vibration of the vibrating screen 100 is not limited to the above-mentioned mode. The vibration of the vibrating screen 100 can be, for example, a circular vibration or an elliptical vibration.

[0014] In this embodiment, the vibrating screen 100 is disposed so that the upper surface of the vibrating screen 100 is parallel to the horizontal direction. However, the vibrating screen 100 may be disposed so that the upper surface of the vibrating screen 100 is inclined obliquely downward from the horizontal direction from the upstream to the downstream of the vibrating screen 100.

[0015] The elastic body 200 is disposed on the vibrating screen 100. The elastic body 200 has a base end 202 and a tip end 204. The base end 202 of the elastic body 200 is located away from the vibrating screen 100. The tip end 204 of the elastic body 200 is located downstream of the vibrating screen 100 from the base end 202 of the elastic body 200. The elastic body 200 hangs down from the base end 202 to the tip end 204. That is, in this embodiment, the elastic body 200 hangs down from a first portion located away from the vibrating screen 100 to a second portion of the elastic body 200 located downstream of the vibrating screen 100 from the first portion. The first portion of the elastic body 200 may be the base end 202 or may be a portion different from the base end 202. The second portion of the elastic body 200 may be the tip end 204 or may be a portion different from the tip end 204.

[0016] According to this embodiment, the object to be crushed by the crushing device 10 enters between the vibrating screen 100 and the elastic body 200 from the upstream of the vibrating screen 100. The object that entered between the vibrating screen 100 and the elastic body 200 is pressed toward the vibrating screen 100 by the weight of the elastic body 200, and is sieved by the vibration of the vibrating screen 100. This can promote the crushing of the object, compared to when the elastic body 200 is not provided. Furthermore, this embodiment can be realized by only introducing the elastic body 200. That is, this embodiment can be realized without modifying an existing vibrating screen. Therefore, the sieving efficiency of the vibrating screen 100 can be easily increased, compared to when the elastic body 200 is not provided.

[0017] Furthermore, according to this embodiment, even if the amount of moisture contained in the crushed material such as ore is such that the crushed material is likely to solidify into flakes in, for example, HPGR, the sieving efficiency of the vibrating screen 100 can be increased compared to when the elastic body 200 is not provided. For example, when the amount of moisture is small enough to be appropriate, the crushed material is unlikely to solidify into flakes. When the amount of moisture is greater than the appropriate amount, the crushed material is likely to solidify into flakes. When the amount of moisture is even greater, the crushed material becomes fluid, and the crushed material is unlikely to solidify into flakes. If the elastic body 200 is not provided, the sieving efficiency of the crushed material solidified into flakes is likely to be lower than the sieving efficiency of the crushed material not solidified into flakes. In contrast, according to this embodiment, as described above, the crushing of the crushed material can be promoted compared to when the elastic body 200 is not provided. Therefore, even if the amount of moisture contained in the crushed material such as ore is such that the crushed material is likely to solidify into flakes, the sieving efficiency of the vibrating screen 100 can be increased compared to when the elastic body 200 is not provided.

[0018] In this embodiment, the elastic body 200 is a material that has flexibility to be deformed along the upper surface of the vibrating screen 100 when it is hung from above the vibrating screen 100, and has a weight capable of pressing down from above objects to be sieved out by the vibrating screen 100. "Flexibility" means that the elastic body 200 can be deformed along the upper surface of the vibrating screen 100 simply by hanging the elastic body 200 from above toward the vibrating screen 100, that is, without applying an external force to the elastic body 200. From the viewpoint of strongly pressing down objects to be sieved out by the vibrating screen 100 from above, the weight per unit area of ​​the elastic body 200 is, for example, 5 kg / m 2 On the other hand, if the elastic body 200 is too heavy, the object is less likely to be vibrated by the vibration of the vibrating screen 100. For this reason, the weight per unit area of ​​the elastic body 200 is set to, for example, 25 kg / m 2 It can be the following:

[0019] In this embodiment, the elastic body 200 is a conveyor belt. As the conveyor belt used for the elastic body 200, a known conveyor belt can be used, for example, a conveyor belt having a core material layer including canvas and an upper cover rubber layer and a lower cover rubber layer arranged on both sides of the core material layer, or a conveyor belt having a core material layer including a steel cord and an upper cover rubber layer and a lower cover rubber layer arranged on both sides of the core material layer. Note that the elastic body 200 is not limited to a conveyor belt. For example, the elastic body 200 may be a rubber plate made of only rubber such as natural rubber or urethane rubber. Also, the elastic body 200 does not have to be in a belt shape, and may be in a string shape, for example.

[0020] If a part of the vibrating screen 100 is the base end 202 of the elastic body 200, that part of the vibrating screen 100 must be strong enough to bear the mass of the elastic body 200 while not breaking due to vibration. In this case, however, the weight of the vibrating screen 100 increases, resulting in a decrease in energy efficiency. For this reason, it is preferable that the base end 202 of the elastic body 200 is fixed to a member independent of the vibration of the vibrating screen 100, i.e., a member to which the vibration of the vibrating screen 100 is not transmitted, or to a beam member of the peripheral equipment of that member. For example, the base end 202 of the elastic body 200 can be fixed to a sprinkler section that sprinkles water on objects to be screened by the vibrating screen 100. 。

[0021] In this embodiment, as shown in Fig. 1, only one stage of elastic bodies 200 is arranged from the upstream to the downstream of the vibrating screen 100. However, multiple stages of elastic bodies 200 may be arranged from the upstream to the downstream of the vibrating screen 100. Also, in this embodiment, as shown in Fig. 2, multiple elastic bodies 200, specifically, two elastic bodies 200, are arranged side by side along the width direction of the vibrating screen 100. However, the number of vibrating screens 100 arranged along the width direction of the vibrating screen 100 may be only one.

[0022] The elastic body 200 is disposed along the upper surface of the vibrating screen 100 from a position a predetermined distance L1 away from the center of the supply port 110 of the object to be sieved by the vibrating screen 100 to the tip 204 of the elastic body 200. "Along" means that the elastic body 200 is disposed almost parallel to the upper surface of the vibrating screen 100. In the vicinity of the supply port 110, objects such as particles smaller than the sieve mesh of the vibrating screen 100 have not yet fallen sufficiently from the vibrating screen 100. For this reason, the thickness of the pile of objects in the vicinity of the supply port 110 is thicker than the thickness of the pile of objects far from the supply port 110. In this case, even if the elastic body 200 is provided in the vicinity of the supply port 110, the improvement of the sieving efficiency by the elastic body 200 is not expected to be significant. From this viewpoint, the predetermined distance L1 can be set to, for example, 1 / 3 or more of the total length L of the vibrating screen 100. On the other hand, if the elastic body 200 is provided at a position that is too far from the supply port 110, it is not possible to expect improvement in screening efficiency due to the elastic body 200. From this viewpoint, the predetermined distance L1 can be set to, for example, ½ or less of the total length L of the vibrating screen 100.

[0023] The regulating portion 300 is disposed above a predetermined portion of the elastic body 200, i.e., a portion between the base end 202 and the tip end 204 of the elastic body 200. The regulating portion 300 regulates the upward movement of the elastic body 200 at that portion. Specifically, even if the elastic body 200 at that portion is bounced up by the vibration of the vibrating screen 100, the elastic body 200 at that portion comes into contact with the regulating portion 300, thereby regulating the upward movement of the elastic body 200 at that portion. In this embodiment, the regulating portion 300 is a beam member such as a steel pipe extending in a direction parallel to the width direction of the vibrating screen 100. However, the shape of the regulating portion 300 is not limited to the shape according to this embodiment.

[0024] The regulating portion 300 is capable of contacting the above-mentioned predetermined portion of the elastic body 200 at a position spaced apart from the upper surface of the vibrating screen 100 by a predetermined height H. From the viewpoint of preventing the vibrating screen 100 from colliding with the regulating portion 300 via the elastic body 200, the predetermined height H can be set to, for example, 1.25 times or more the vertical component of the maximum amplitude of vibration of the vibrating screen 100. In addition, when the predetermined height H is extremely high relative to the vertical component of the maximum amplitude of vibration of the vibrating screen 100 and the elastic body 200 is curved along the regulating portion 300, the range of the portion of the elastic body 200 located away from the vibrating screen 100 becomes relatively large from the position where the regulating portion 300 is located to the downstream side of the vibrating screen 100. Therefore, from the viewpoint of ensuring a certain contact range between the vibrating screen 100 and the elastic body 200, the predetermined height H can be set to, for example, 8.00 times or less the vertical component of the maximum amplitude of vibration of the vibrating screen 100.

[0025] Although the embodiments of the present invention have been described above with reference to the drawings, these are merely examples of the present invention, and various configurations other than those described above can also be adopted. [Explanation of symbols]

[0026] 10 Crusher 100 Vibrating Screen 110 Supply port 200 Elastic Body 202 Proximal end 204 Tip 300 Regulatory Department

Claims

1. A vibrating screen; An elastic body disposed on the vibrating screen; Equipped with Crushing and sieving objects that have gotten between the vibrating screen and the elastic body by vibration of the vibrating screen; a base end of the elastic body is located apart from the vibrating screen, the elastic body hangs down from the base end to a portion between the base end and the other end of the elastic body that is located downstream of the vibrating screen, The object is pressed against the vibration screen by a region between the other end and the portion of the elastic body, The base end of the crushing device is fixed to a member to which vibrations of the vibrating screen are not transmitted.

2. A vibrating screen; An elastic body disposed on the vibrating screen; Equipped with Crushing and sieving objects that have gotten between the vibrating screen and the elastic body by vibration of the vibrating screen; a base end of the elastic body is located apart from the vibrating screen, the elastic body hangs down from the base end to a portion between the base end and the other end of the elastic body that is located downstream of the vibrating screen, The object is pressed against the vibration screen by a region between the other end and the portion of the elastic body, The crushing device further includes a regulating portion disposed above a predetermined portion of the elastic body and regulating upward movement of the predetermined portion of the elastic body.

3. The crushing device according to claim 2, A crushing device in which the regulating portion is capable of contacting the specified portion of the elastic body at a position away from the upper surface of the vibrating screen at a height that is 1.25 to 8.00 times the vertical component of the maximum amplitude of vibration of the vibrating screen.

4. In the disintegration device according to any one of claims 1 to 3, A crushing device in which the elastic body is arranged along the upper surface of the vibrating screen from a position that is 1 / 3 to 1 / 2 of the total length of the vibrating screen away from the center of the supply inlet of the object to be sieved by the vibrating screen to the tip of the elastic body.

5. In the disintegration device according to any one of claims 1 to 4, The disintegration device, wherein the elastic body is a conveyor belt.

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