A cylindrical screening type discharge hopper

Abstract

The utility model discloses a cylindrical screen-type discharging hopper, comprising a mounting ring installed at the bottom of the cylindrical screen, and a discharging assembly arranged on the mounting ring; the discharging assembly comprises a hopper arranged at the center of the mounting ring, and a feed pipe symmetrically arranged on both sides of the hopper and overlapped with the mounting ring, the end of the feed pipe away from the mounting ring is connected to the hopper to transport mineral materials to the hopper, the end of the feed pipe away from the hopper is provided with a feed port, and the tube wall of the feed pipe is provided with a plurality of mud discharge grids to discharge the slurry from the feed pipe. The utility model arranges a mounting ring at the bottom of the cylindrical screen, and arranges a hopper and a feed port on the mounting ring. When the slurry and ore enter from the feed pipe, since the mud discharge grid is arranged on the tube wall of the feed pipe, the slurry can flow out from the mud discharge grid and remain in the cylindrical screen, and the ore falls from the hopper to an external collection box, so that while collecting large particles of material, the occurrence of slurry spitting is also avoided.

Description

Technical Field

[0001] The utility model relates to the field of mineral material screening equipment, in particular to a cylindrical screening body type material discharging hopper. Background Art

[0002] Drum screens are often used in the screening process of mill discharge in ore dressing plants. The working part of the drum screen is cylindrical, and the entire screen rotates around the axis of the cylinder. The axis is generally installed at a small angle. The material is fed from one end of the cylinder, and the fine-grade material passes through the sieve holes on the working surface of the cylinder, and the coarse-grained material is discharged from the other end of the cylinder.

[0003] At present, in the grading design of each level of the ore dressing plant, drum screens are often used for screening and grading of ore materials. Large particles of materials are ground into slurry by ball mills, and then enter the drum screen from the discharge port for screening. Fine particles of materials are directly discharged into the pump pool through the sieve holes.

[0004] However, since the existing discharge hopper and drum screen are an integrated structure, they are not easy to disassemble and replace, and there is no slurry barrier at the bottom of the drum screen. When the screening and grading required for the ore material is different from the grading specifications of the current drum screen, and the feed amount and feeding speed of the ball mill are too large, it will cause the "slurry spitting" phenomenon at the tail of the drum screen. The slurry that should have remained in the drum screen will flow out directly with the ore, causing the slurry to flow into the ground, resulting in a dirty and messy work site. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a cylindrical screening type discharge hopper, which aims to solve the problem that there is no slurry blocking device at the bottom of the current cylindrical screen. When the screening and grading required for the ore is different from the grading specifications of the current cylindrical screen, and the feeding amount and feeding speed of the ball mill are too large, the slurry flows out directly with the ore, causing the slurry to flow into the ground, resulting in a dirty and messy work site.

[0006] To achieve the above object, the utility model is implemented through the following technical solutions: a cylindrical screen body type discharge hopper, comprising a mounting ring mounted on the bottom of the cylindrical screen, and a discharge assembly arranged on the mounting ring;

[0007] The discharge assembly includes a hopper arranged at the center of the mounting ring, and a feed pipe symmetrically arranged on both sides of the hopper and overlapped with the mounting ring, the end of the feed pipe away from the mounting ring is connected to the hopper to transport mineral materials to the hopper, the end of the feed pipe away from the hopper is provided with a feed port, and the wall of the feed pipe is provided with a plurality of mud discharge grids to discharge the slurry from the feed pipe.

[0008] In summary, according to the cylindrical screen integrated discharge hopper proposed by the utility model, a mounting ring is arranged at the bottom of the cylindrical screen, and a hopper and a feed port are arranged on the mounting ring. When slurry and ore enter from the feed pipe, since the mud discharge grid is arranged on the wall of the feed pipe, the slurry can flow out from the mud discharge grid and remain in the cylindrical screen, and the ore falls from the hopper to the external collection box. While collecting large particles of material, the occurrence of slurry spitting is also avoided. Specifically, the cylindrical screen integrated discharge hopper includes a mounting ring installed at the bottom of the cylindrical screen, and a discharge assembly arranged on the mounting ring. The discharge assembly includes a hopper arranged at the center of the mounting ring, and a feed pipe symmetrically arranged on both sides of the hopper and overlapped with the mounting ring. The end of the feed pipe away from the mounting ring is connected to the hopper, and the end of the feed pipe away from the hopper is provided with a feed port so that the slurry drives the ore to flow into the hopper. The wall of the feed pipe is provided with a plurality of mud discharge grids, and the slurry can be discharged from the mud discharge grids, which greatly reduces the slurry discharged from the cylindrical screen and avoids the slurry from polluting the work site.

[0009] Furthermore, the inner ring of the mounting ring is symmetrically provided with a plurality of mounting portions for connecting the feed pipe.

[0010] Furthermore, elastic pads are provided along the mounting ring between adjacent mounting portions.

[0011] Furthermore, the feed pipe includes a bottom plate, a mud discharge plate perpendicular to the bottom plate, and a connecting plate connecting the bottom plate and the mud discharge plate, and one end of the bottom plate away from the hopper is connected to the mounting portion by a fastener.

[0012] Furthermore, the fastener passes through the elastic pad and the mounting ring in sequence to fix the base plate to a side of the mounting ring away from the elastic pad.

[0013] Furthermore, the mud discharge plate is an L-shaped bracket, one end of which is perpendicular to the bottom plate to enclose a square feed pipe.

[0014] Furthermore, the length of the connecting plate is smaller than the length of the bottom plate and the mud discharge plate.

[0015] Furthermore, reinforcing ribs are provided at the connection between the bottom plate and the hopper.

[0016] Furthermore, a baffle is provided inside the hopper for separating the relatively arranged feeding pipes.

[0017] Furthermore, the mounting ring is provided with a plurality of mounting holes equidistantly along the circumference.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 It is a schematic diagram of the structure of a cylindrical screen-type discharge hopper in one embodiment of the utility model;

[0021] Figure 2 A bottom view of a cylindrical screen-type discharge hopper in one embodiment of the utility model

[0022] Figure 3 Schematic diagram of the structure of the mounting ring.

[0023] Component symbol description:

[0024] Mounting ring 100 , mounting portion 110 , mounting hole 120 , discharge assembly 200 , hopper 210 , baffle 211 , feed pipe 220 , bottom plate 221 , mud discharge plate 222 , connecting plate 223 , elastic pad 300 , mud discharge grille 400 , fastener 500 , and reinforcing rib 600 . DETAILED DESCRIPTION

[0025] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. Several embodiments of the utility model are given in the accompanying drawings. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right", "upper", "lower" and similar expressions used herein are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0028] See also Figure 1-Figure 3 , which is a schematic structural diagram of a cylindrical screen type discharging hopper provided in one embodiment of the utility model, the cylindrical screen type discharging hopper comprises a mounting ring 100 mounted on the bottom of the cylindrical screen, and a discharging assembly 200 arranged on the mounting ring 100, wherein:

[0029] In order to collect large-particle ore and avoid the "slurry spitting" phenomenon, a discharge hopper 210 is set at the bottom of the cylindrical screen. While the large-particle ore is beaten out, the slurry is kept inside the cylindrical screen as much as possible to avoid a large amount of slurry flowing out and polluting the working ground. The discharge assembly 200 includes a hopper 210 arranged at the center of the mounting ring 100, and a feed pipe 220 symmetrically arranged on both sides of the hopper 210 and overlapped with the mounting ring 100. One end of the feed pipe 220 is welded to the hopper 210, and the end away from the hopper 210 is connected to the mounting ring 100 through a fastener 500 to suspend and fix the hopper 210 in the center of the mounting ring 100. The feed pipe 220 is connected to the hopper 210 so that the ore enters through the feed port arranged at the end of the feed pipe 220 away from the hopper 210, and is discharged from the cylindrical screen through the hopper 210.

[0030] In order to overlap with the feed pipe 220, the inner ring of the mounting ring 100 is symmetrically provided with a plurality of mounting portions 110, and the end of the feed pipe 220 away from the hopper 210 is connected to the mounting ring 100 through a fastener 500. Since the mounting ring 100 is made of metal material, for the purpose of protecting it and preventing pits on the surface of the mounting ring 100 caused by the impact of ore, an arc-shaped elastic pad 300 is provided on the mounting ring 100. In this embodiment, the number of the feed pipe 220 and the mounting portion 110 are both 2, and two notches are provided in the inner ring of the mounting ring 100 to form the mounting portion 110, which is used to connect the feed pipe 220 through the fastener 500. If its collection efficiency is to be improved, the number of the feed pipe 220 can be set to be more. The number of the elastic pads 300 is also 2, which are respectively arranged between the two mounting portions 110.

[0031] In order to fix the mounting ring 100 to the bottom of the cylindrical screen, the mounting ring 100 is provided with a plurality of mounting holes 120 equidistantly along the circumference, and the mounting holes 120 are distributed on the outer circumference of the elastic pad 300. When the mounting ring 100 fixes the bottom of the cylindrical screen, the outer edge of the elastic pad 300 fits the inner wall of the cylindrical screen so that the ore cannot directly contact the surface of the mounting ring 100. In addition, in order to prevent the slurry and ore from flowing out of the gap between the hopper 210 and the mounting ring 100, a baffle 211 is also provided at the bottom of the cylindrical screen to block the gap, so as to ensure that the slurry and ore are only discharged from the feed pipe 220 and the hopper 210.

[0032] Furthermore, large particles of ore are brought into the feed pipe 220 through the slurry. In order to avoid the "slurry spitting" phenomenon caused by the outflow of a large amount of slurry, a large number of mud discharge grids 400 are set on the wall of the feed pipe 220. When the slurry and ore enter the feed pipe 220, the slurry can be discharged from the feed pipe 220 through the mud discharge grid 400, and the ore remains in the feed pipe 220. The ore remaining in the feed pipe 220 is flushed into the hopper 210 through the impact of the subsequent slurry, and the ore is discharged from the cylindrical screen.

[0033] In order to realize the feeding function, the feed pipe 220 includes a bottom plate 221, a mud discharge plate 222 perpendicular to the bottom plate 221, and a connecting plate 223 connecting the bottom plate 221 and the mud discharge plate 222. The bottom plate 221 is a T-shaped plate, one end of which is directly welded to the hopper 210, and the fastener 500 passes through the elastic pad 300 and the mounting ring 100 in sequence, so as to connect the T-shaped end to the side of the mounting ring 100 away from the elastic pad 300 through the fastener 500, so as to ensure that the feed pipe 220 is stably connected to the mounting ring 100. Compared with the T-shaped end overlapping the upper end surface of the mounting ring 100, the slurry and ore can enter the feed pipe 220 more easily. In order to increase the feed amount of slurry and ore, the length of the connecting plate 223 is set to be much smaller than the length of the bottom plate 221 and the mud discharge plate 222, so as to increase the feed area of ​​the feed port. A reinforcing rib 600 is also provided at the connection between the bottom plate 221 and the hopper 210 to further enhance the stability of the structure.

[0034] Since the hopper 210 is connected to two feed pipes 220, a baffle 211 is provided at the inner top of the feed pipe 220, and its two ends are connected to the opposite vertex angles of the inner top of the feed pipe 220, so as to be inclined inside the hopper 210 to separate the materials on both sides. At the same time, a mud discharge grid 400 is also provided on the side wall of the hopper 210 to discharge the ore mud. Furthermore, the hopper 210 is set to be an isosceles trapezoid to increase the discharge speed.

[0035] In summary, according to the cylindrical screen integrated discharge hopper proposed by the utility model, a mounting ring is arranged at the bottom of the cylindrical screen, and a hopper and a feed port are arranged on the mounting ring. When slurry and ore enter from the feed pipe, since the mud discharge grid is arranged on the wall of the feed pipe, the slurry can flow out from the mud discharge grid and remain in the cylindrical screen, and the ore falls from the hopper to the external collection box. While collecting large particles of material, the occurrence of slurry spitting is also avoided. Specifically, the cylindrical screen integrated discharge hopper includes a mounting ring installed at the bottom of the cylindrical screen, and a discharge assembly arranged on the mounting ring. The discharge assembly includes a hopper arranged at the center of the mounting ring, and a feed pipe symmetrically arranged on both sides of the hopper and overlapped with the mounting ring. The end of the feed pipe away from the mounting ring is connected to the hopper, and the end of the feed pipe away from the hopper is provided with a feed port so that the slurry drives the ore to flow into the hopper. The wall of the feed pipe is provided with a plurality of mud discharge grids, and the slurry can be discharged from the mud discharge grids, which greatly reduces the slurry discharged from the cylindrical screen and avoids the slurry from polluting the work site.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A cylindrical screening type discharge hopper, characterized in that: It comprises a mounting ring mounted on the bottom of the cylindrical screen, and a discharge assembly arranged on the mounting ring; The discharge assembly includes a hopper arranged at the center of the mounting ring, and a feed pipe symmetrically arranged on both sides of the hopper and overlapped with the mounting ring, the end of the feed pipe away from the mounting ring is connected to the hopper to transport mineral materials to the hopper, the end of the feed pipe away from the hopper is provided with a feed port, and the wall of the feed pipe is provided with a plurality of mud discharge grids to discharge the slurry from the feed pipe.

2. The cylindrical screening body type discharge hopper according to claim 1, characterized in that: The inner ring of the mounting ring is symmetrically provided with a plurality of mounting parts for connecting the feed pipe.

3. The cylindrical screening body type discharge hopper according to claim 2, characterized in that: Elastic pads are arranged between adjacent mounting parts along the mounting ring.

4. The cylindrical screening body type discharge hopper according to claim 1, characterized in that: The feed pipe comprises a bottom plate, a mud discharge plate perpendicular to the bottom plate, and a connecting plate connecting the bottom plate and the mud discharge plate. One end of the bottom plate away from the hopper is connected to the mounting portion through a fastener.

5. The cylindrical screening body type discharge hopper according to claim 4, characterized in that: The fastener passes through the elastic pad and the mounting ring in sequence to fix the base plate to a side of the mounting ring away from the elastic pad.

6. The cylindrical screening body type discharge hopper according to claim 5, characterized in that: The mud discharge plate is an L-shaped bracket, one end of which is perpendicular to the bottom plate to enclose a square feed pipe.

7. The cylindrical screening body type discharge hopper according to claim 6, characterized in that: The length of the connecting plate is smaller than the length of the bottom plate and the mud-discharging plate.

8. The cylindrical screening body type discharge hopper according to claim 7, characterized in that: A reinforcing rib is also provided at the connection between the bottom plate and the hopper.

9. The cylindrical screening body type discharge hopper according to claim 1, characterized in that: A baffle for separating oppositely arranged feed pipes is arranged inside the hopper.

10. The cylindrical screening body type discharge hopper according to claim 1, characterized in that: The mounting ring is provided with a plurality of mounting holes at equal intervals along the circumference.

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