Material passing check ring of drum screen of mill

Abstract

The utility model discloses a material passing check ring of a drum screen of a mill. The material passing check ring comprises a fixing ring and a plurality of baffles arranged on the fixing ring. The baffle is provided with first curved edges used for being connected with the fixing ring and second curved edges connected to the inner wall of the drum screen, the multiple first curved edges are laid in the drum screen along the fixing ring, and the second curved edges are connected to the inner wall of the drum screen through fasteners. A plurality of material passing parts are arranged on the side, close to the inner wall of the drum screen, of the baffle and used for conveying mineral aggregates. The second curved edge is connected to the inner wall of the drum screen, then the first curved edge is connected into a whole through the fixing ring, mineral aggregate is conveyed through the center of the fixing ring or the material passing part, when the mineral aggregate hits the baffle, the speed and potential energy are reduced, screening is carried out, and the situation that the service life of equipment is affected due to the fact that a screen plate or a blind plate is abraded too fast is avoided.

Description

Technical Field

[0001] The utility model relates to the field of mineral material screening equipment, in particular to a grinding machine drum screening material retaining ring. 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, the use of drum screens can classify minerals according to the required particle size, and the particles that meet the requirements will be sent to the next process, and the particles that do not meet the requirements will be returned to the mill for recycling. A guide plate structure is usually designed inside the drum screen to transfer the minerals to the screening port as quickly as possible for particle size classification, so as to improve the screening efficiency.

[0004] However, due to the guiding function of the guide plate and the effect of gravity, the ore discharged from the discharge port has a large speed and potential energy, which often impacts the sieve plates or blind plates in the first few rows of the drum screen inlet, causing the sieve plates or blind plates to wear too quickly, affecting the service life of the equipment. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a grinding mill drum screen material retaining ring, which aims to solve the problem that due to the guiding function of the guide plate and the effect of gravity, the mineral materials discharged from the discharge port have a large speed and potential energy, which often impacts the screen plates or blind plates in the first few rows of the drum screen inlet, causing the screen plates or blind plates to wear too quickly, thereby affecting the service life of the equipment.

[0006] To achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: a grinding mill drum screening material retaining ring, including a fixed ring and a plurality of baffles arranged on the fixed ring;

[0007] The baffle is provided with a first curved edge for connecting to the fixed ring and a second curved edge connected to the inner wall of the cylindrical screen. Several of the first curved edges are laid in the cylindrical screen along the fixed ring, and the second curved edges are connected to the inner wall of the cylindrical screen by fasteners. The baffle is provided with several material passing parts on one side close to the inner wall of the cylindrical screen for conveying mineral materials.

[0008] In summary, according to a mill drum screen material retaining ring provided by the utility model, by connecting the second curved edge to the inner wall of the drum screen, and then connecting the first curved edge to an integral body through a fixed ring, the ore material is transmitted by the center of the fixed ring or the material passing part. When the ore material hits the baffle plate, the speed and potential energy are slowed down to perform screening, so as to avoid the screen plate or the blind plate from wearing too fast and affecting the service life of the equipment. Specifically, the mill drum screen material retaining ring comprises a fixed ring and a plurality of baffle plates arranged on the fixed ring. The baffle plate is provided with a first curved edge for connecting the fixed ring and a second curved edge connected to the inner wall of the drum screen. The first curved edge is connected to form a retaining ring as a whole through the fixed ring, and the second curved edge is connected to the inner wall of the drum screen through a fastener to fix the retaining ring as a whole inside the drum screen. So that when it is impacted by the ore material, it has sufficient resistance to slow down the speed and potential energy of the ore material, thereby avoiding the screen plate or the blind plate from wearing too fast. And due to the presence of the middle of the fixed ring and the material passing part, the ore material can be transmitted to screen the particle size grade after being delayed.

[0009] Furthermore, the baffle includes a frame and an outer lining arranged outside the frame, and a side of the second curved edge close to the inner wall of the cylindrical screen is directly attached to the inner wall of the cylindrical screen.

[0010] Furthermore, the second curved edge is provided with a first mounting base plate and second mounting base plates symmetrically arranged on both sides of the first mounting base plate, and the widths of the first mounting base plate and the second mounting base plate are both greater than the width of the frame.

[0011] Furthermore, a material transfer portion is provided between any adjacent first mounting base plates and second mounting base plates.

[0012] Furthermore, a plurality of reinforcing ribs are provided on the frame in a direction perpendicular to the inner wall of the cylindrical screen, and one end of the reinforcing ribs away from the inner wall of the cylindrical screen abuts against the fixing ring.

[0013] Furthermore, the reinforcing ribs divide the first installation base plate into a plurality of first installation areas, and a first installation hole is provided on any of the first installation areas.

[0014] Furthermore, the reinforcing ribs divide the second mounting base plate into a plurality of second mounting areas, and any of the second mounting areas is provided with a second mounting hole.

[0015] Furthermore, the first curved edge is provided with a plurality of connection holes connected to the fixing ring along its length direction.

[0016] 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

[0017] 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:

[0018] Figure 1 It is a top view of the grinding machine cylinder screening the material retaining ring in one embodiment of the utility model;

[0019] Figure 2 It is a bottom view of the grinding machine cylinder screening the material retaining ring in one embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the assembly of the outer lining and the frame in one embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of a baffle in one embodiment of the utility model;

[0022] Figure 5 It is a schematic diagram of the structure of the skeleton in one embodiment of the utility model.

[0023] Component symbol description:

[0024] Fixed ring 100, baffle 200, first curved edge 210, connecting hole 211, second curved edge 220, first mounting base plate 221, second mounting base plate 222, feed portion 230, outer lining 240, frame 250, reinforcing rib 251, first mounting area 260, first mounting hole 261, second mounting area 270, second mounting hole 271. 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 5 , which is a schematic diagram of the structure of a mill drum screening material retaining ring provided in one embodiment of the utility model, the mill drum screening material retaining ring comprises a fixing ring 100 and a plurality of baffles 200 arranged on the fixing ring 100, wherein:

[0029] In order to prevent the ore from impacting the sieve plates or blind plates at the first few rows of the drum screen entrance due to the guiding function of the guide plate and the gravity, causing the sieve plates or blind plates to wear too quickly, a retaining ring is set inside the drum screen to slow down the speed and potential energy of the ore. The baffle 200 includes a skeleton 250 and an elastic outer lining 240 wrapped around the outside of the skeleton 250. The skeleton 250 is provided with a first curved edge 210 connected to the fixed ring 100 and a second curved edge 220 connected to the inner wall of the drum screen. In order to fit with the fixed ring 100, the curvature of the first curved edge 210 is consistent with the curvature of the fixed ring 100, and then when a plurality of skeletons 250 are fixed to the fixed ring 100 by fasteners, a plurality of first curved edges 210 can be smoothly connected to form a circular ring for passing ore. The first curved edge 210 is provided with a plurality of connecting holes 211 connected to the fixed ring 100 along its length direction for connecting with the fixed ring 100.

[0030] It is worth noting that the fixing ring 100 can be a whole, or two 1 / 2 rings, or four 1 / 4 rings. If it is a segmented ring, the connection should be in the central connection hole 211 of any frame 250 to ensure the stability of the ring, strengthen the stable fixation of the retaining ring structure, and ensure good impact resistance to slow down the speed and potential energy of the ore material. The through holes on the fixing ring 100 should correspond to the connection holes 211 one by one, thereby ensuring that several frames 250 are connected as one.

[0031] Furthermore, in order to prevent the skeleton 250 from directly impacting the ore material and causing wear, the elastic outer lining 240 plays a good buffering role. When the ore material impacts the elastic outer lining 240, it can play a more obvious protective effect, so that the skeleton 250 does not directly impact the ore material, thereby extending its service life.

[0032] Furthermore, in order to prevent the ore from being retained on the plane of the baffle plate 200 after impacting the baffle plate 200, a plurality of feeding parts 230 are provided on the side of the baffle plate 200 close to the inner wall of the cylindrical screen, so as to cooperate with the center of the fixing ring 100 to pass the ore and enter the next particle size screening process. In this embodiment, the number of the feeding parts 230 is 2, and in some optional embodiments, the number can be set to at least 1.

[0033] It is worth noting that, in order to fix the frame 250 to the inner wall of the cylindrical screen, a mounting bottom plate is provided on the second curved edge 220, and in order to fix the mounting bottom plate to the inner wall of the cylindrical screen, the width of the mounting bottom plate is greater than the width of the frame 250. Due to the setting of the material transfer portion 230, the second curved edge 220 is divided into three mounting feet, and the mounting bottom plate provided at the mounting angle becomes the first mounting bottom plate 221 and the second mounting bottom plate 222. The two second mounting bottom plates 222 are symmetrically arranged on both sides of the first mounting bottom plate 221, and a material transfer portion 230 is provided between any adjacent first mounting bottom plates 221 and second mounting bottom plates 222.

[0034] In order to enhance the stability of the first mounting base plate 221 and the second mounting base plate 222, a plurality of reinforcing ribs 251 are provided on the frame 250 in a direction perpendicular to the inner wall of the cylindrical screen, and one end of the reinforcing rib 251 away from the inner wall of the cylindrical screen abuts against the fixing ring 100, so that during installation, the reinforcing rib 251 can be abutted against the fixing ring 100, and the frame 250 can be fixed to the fixing ring 100 with direct fasteners.

[0035] The reinforcing ribs 251 divide the first mounting base plate 221 into a plurality of first mounting areas 260, and any of the first mounting areas 260 is provided with a first mounting hole 261. The reinforcing ribs 251 divide the second mounting base plate 222 into a plurality of second mounting areas 270, and any of the second mounting areas 270 is provided with a second mounting hole 271. In this embodiment, two reinforcing ribs 251 are provided on the first mounting base plate 221, which will cooperate with the frame 250 to divide the first mounting base plate 221 into five first mounting areas 260, and five first mounting holes 261 are provided; two reinforcing ribs 251 are provided on the first mounting base plate 221, which will cooperate with the frame 250 to divide the second mounting base plate 222 into two first mounting areas 260, and two second mounting holes 271 are provided. The first mounting base plate 221 and the second mounting base plate 222 are fixed to the inner wall of the cylindrical screen by fasteners to slow down the speed and potential energy of the ore material.

[0036] In summary, according to a mill drum screen material retaining ring provided by the utility model, by connecting the second curved edge to the inner wall of the drum screen, and then connecting the first curved edge to an integral body through a fixed ring, the ore material is transmitted by the center of the fixed ring or the material passing part. When the ore material hits the baffle plate, the speed and potential energy are slowed down to perform screening, so as to avoid the screen plate or the blind plate from wearing too fast and affecting the service life of the equipment. Specifically, the mill drum screen material retaining ring comprises a fixed ring and a plurality of baffle plates arranged on the fixed ring. The baffle plate is provided with a first curved edge for connecting the fixed ring and a second curved edge connected to the inner wall of the drum screen. The first curved edge is connected to form a retaining ring as a whole through the fixed ring, and the second curved edge is connected to the inner wall of the drum screen through a fastener to fix the retaining ring as a whole inside the drum screen. So that when it is impacted by the ore material, it has sufficient resistance to slow down the speed and potential energy of the ore material, thereby avoiding the screen plate or the blind plate from wearing too fast. And due to the presence of the middle of the fixed ring and the material passing part, the ore material can be transmitted to screen the particle size grade after being delayed.

[0037] 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.

[0038] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. 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, and these 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 grinding mill drum screening material retaining ring, characterized in that: It includes a fixing ring and a plurality of baffles arranged on the fixing ring; The baffle is provided with a first curved edge for connecting to the fixed ring and a second curved edge connected to the inner wall of the cylindrical screen. Several of the first curved edges are laid in the cylindrical screen along the fixed ring, and the second curved edges are connected to the inner wall of the cylindrical screen by fasteners. The baffle is provided with several material passing parts on one side close to the inner wall of the cylindrical screen for conveying mineral materials.

2. The grinding mill drum screening material retaining ring according to claim 1, characterized in that: The baffle comprises a frame and an outer lining arranged outside the frame, and a side of the second curved edge close to the inner wall of the cylindrical screen is directly attached to the inner wall of the cylindrical screen.

3. The grinding mill drum screening material retaining ring according to claim 2, characterized in that: The second curved edge is provided with a first mounting base plate and second mounting base plates symmetrically arranged on both sides of the first mounting base plate, and the widths of the first mounting base plate and the second mounting base plate are both greater than the width of the frame.

4. The grinding mill drum screening retaining ring according to claim 3, characterized in that: A material transfer portion is provided between any adjacent first mounting base plates and second mounting base plates.

5. The grinding mill drum screening retaining ring according to claim 1, characterized in that: A plurality of reinforcing ribs are arranged on the frame in a direction perpendicular to the inner wall of the cylindrical screen, and one end of the reinforcing ribs away from the inner wall of the cylindrical screen abuts against the fixing ring.

6. The grinding mill drum screening retaining ring according to claim 5, characterized in that: The reinforcing ribs divide the first installation base plate into a plurality of first installation areas, and a first installation hole is provided in any of the first installation areas.

7. The grinding mill drum screening material retaining ring according to claim 6, characterized in that: The reinforcing ribs divide the second mounting base plate into a plurality of second mounting areas, and any of the second mounting areas is provided with a second mounting hole.

8. The grinding mill drum screening retaining ring according to claim 1, characterized in that: The first curved edge is provided with a plurality of connection holes for connecting the fixing ring along its length direction.

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