Circulating type vibrating screen

Abstract

The utility model discloses a circulating type vibrating screen which comprises a vibrating screen body, a conveying belt and a material circulating mechanism. The conveying belt is installed on the lower side of the vibrating screen body and used for collecting materials obtained after preliminary screening, and a material collecting mechanism is arranged on one side of the conveying belt. The material circulating mechanism is installed on one side of the vibrating screen body and comprises a pair of guide rails, the guide rails are symmetrically arranged on the two sides of the material collecting mechanism, a second support is installed between the guide rails, an installation plate is installed on the second support, a feeding mechanism is installed on the installation plate, and the feeding mechanism corresponds to the material collecting mechanism. The material collecting mechanism comprises a collecting box, and a temporary storage cavity and a containing cavity are formed in the collecting box. According to the material screening device, materials can be circularly screened, particles in the materials are effectively reduced, the screening quality of the materials is improved, the probability of secondary screening of the materials can be further reduced, the burden of workers is relieved, and meanwhile subsequent processing of the materials cannot be affected.

Description

Technical Field

[0001] The utility model belongs to the technical field of vibrating screens, and particularly relates to a circulating vibrating screen. Background Art

[0002] A vibrating screen is a device that works by using the reciprocating spiral vibration generated by a vibrator. The working principle of the vibrating screen mainly depends on the reciprocating spiral vibration generated by the vibrator. This vibration causes the materials on the screen surface to be excited and jump, so as to realize the operations of material classification, dehydration, desliming and de-mediuming. Vibrating screens are widely used in many industries such as metallurgy, mining, coal, building materials, electric power, chemical industry, etc. Especially in places such as under the blast furnace trough, coking plant, and concentrator, the vibrating screen, as a commonly used screening machine, plays an important role.

[0003] However, when the existing vibrating screen is in use, it can only screen the materials once. If there are still particles in the screened materials, the staff needs to screen the materials again. This not only easily increases the labor burden of the staff, reduces the screening efficiency of the materials, but also affects the subsequent processing of the materials.

[0004] Therefore, in view of the above technical problems, it is necessary to provide a circulating vibrating screen.

[0005] The information disclosed in this background art section is only intended to enhance the overall understanding of the utility model and should not be regarded as an admission or any form of implication that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a circulating vibrating screen, which can solve the problem that the vibrating screen can only perform single screening.

[0007] In order to achieve the above purpose, the technical solution provided by a specific embodiment of the utility model is as follows:

[0008] A circulating vibrating screen includes: a vibrating screen main body, a conveyor belt and a material circulation mechanism;

[0009] The conveyor belt is installed on the lower side of the vibrating screen main body. The conveyor belt is used to collect the preliminarily screened materials, and a material collection mechanism is arranged on one side of the conveyor belt;

[0010] The material circulation mechanism is installed on one side of the vibrating screen main body. The material circulation mechanism includes a pair of guide rails. The pair of guide rails are symmetrically arranged on both sides of the material collection mechanism. A second bracket is installed between the pair of guide rails. An installation plate is installed on the second bracket. A feeding mechanism is installed on the installation plate. The feeding mechanism corresponds to the material collection mechanism.

[0011] In one or more embodiments of the present utility model, the material collection mechanism includes a collection box, and a temporary storage cavity and a receiving cavity are provided in the collection box. The temporary storage cavity is arranged below the conveyor belt, and the materials conveyed by the conveyor belt will fall into the temporary storage cavity instead of the feeding hopper, so that the cyclic screening of the materials can be realized without stopping the vibration sieve main body. The receiving cavity is used to accommodate the feeding hopper, so that the materials in the temporary storage cavity can enter the feeding hopper.

[0012] In one or more embodiments of the present utility model, leakage holes are provided on the side wall of the temporary storage cavity, and the temporary storage cavity is communicated with the receiving cavity through the leakage holes. The materials in the temporary storage cavity can enter the feeding hopper in the receiving cavity through the leakage holes, so as to use the feeding hopper to convey the materials to the upper side of the vibration sieve main body and realize the cyclic screening of the materials.

[0013] In one or more embodiments of the present utility model, a first support is fixedly connected to the collection box. The first support is used for installing a first cylinder, and a first cylinder is installed on the first support. The first cylinder is used to control the movement of a first baffle;

[0014] The free end of the first cylinder is connected with a first baffle, and the first baffle covers the leakage holes. When the first baffle covers the leakage holes, the materials in the temporary storage cavity will not enter the receiving cavity. When the first baffle does not cover the leakage holes, the materials in the temporary storage cavity will enter the receiving cavity through the leakage holes, so as to perform cyclic screening of the materials.

[0015] In one or more embodiments of the present utility model, an avoidance groove is provided on the collection box. The avoidance groove is arranged on the side of the collection box away from the conveyor belt, and the avoidance groove is matched with the mounting plate. The avoidance groove is used to accommodate the mounting plate, so that the feeding hopper can be accommodated in the receiving cavity, collect the materials in the temporary storage cavity, and use the feeding hopper to convey the materials into the vibration sieve main body for cyclic screening.

[0016] In one or more embodiments of the present utility model, the height of the second support is greater than the maximum height of the vibration sieve main body, ensuring that the feeding hopper can convey the materials into the vibration sieve main body for cyclic screening.

[0017] In one or more embodiments of the present utility model, the feeding mechanism includes a feeding hopper. The feeding hopper is accommodated in the receiving cavity. The feeding hopper is used to accommodate the materials in the temporary storage cavity, so as to use the feeding hopper to convey the materials into the vibration sieve main body and realize the cyclic screening of the materials;

[0018] The distance between the leakage holes and the ground is greater than the height of the feeding hopper, so that the materials in the temporary storage cavity can enter the feeding hopper through the leakage holes.

[0019] In one or more embodiments of the present utility model, a discharge port is provided at the bottom of the feeding hopper, and the materials in the feeding hopper enter the vibrating screen main body through the discharge port for screening;

[0020] The bottom of the discharge port is covered with a second baffle, and the second baffle is used to cover the discharge port. When the feeding hopper collects materials, the discharge port is covered by the second baffle; when it is necessary to discharge the materials in the feeding hopper, the discharge port is in an uncovered state.

[0021] In one or more embodiments of the present utility model, a second cylinder and a pair of guide rails are installed at the bottom of the feeding hopper. The second baffle is connected to the free end of the second cylinder and is arranged between the pair of guide rails. The second cylinder can be used to control the movement of the second baffle between the pair of guide rails so as to realize the opening and closing of the discharge port.

[0022] In one or more embodiments of the present utility model, a number of support columns are installed at the bottom of the feeding hopper. The length of the support columns is greater than the diameter of the second cylinder. The support columns are used to support the feeding hopper, that is, when the feeding hopper is accommodated in the accommodation cavity, the support columns contact the bottom wall of the accommodation cavity instead of the second cylinder, thereby ensuring the safety of the second cylinder.

[0023] Compared with the prior art, a circulating vibrating screen of the present utility model can perform circulating screening on materials, effectively reduce the particles in the materials, improve the screening quality of the materials, and further reduce the probability of secondary screening of the materials, relieve the burden of the staff, and at the same time will not affect the subsequent processing of the materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 is a first-angle perspective view of a circulating vibrating screen in an embodiment of the present utility model;

[0026] Figure 2 is Figure 1 a schematic structural diagram of part A in;

[0027] Figure 3 is a second-angle perspective view of a circulating vibrating screen in an embodiment of the present utility model;

[0028] Figure 4 is Figure 3 a schematic structural diagram of part B in;

[0029] Figure 5 This is a partial structural sectional view of a cyclic vibrating screen in an embodiment of the present utility model;

[0030] Figure 6 It is Figure 5 a schematic structural view of the structure at position C in;

[0031] Figure 7 It is Figure 5 a schematic structural view of the structure at position D in;

[0032] Figure 8 This is a partial structural schematic view of a cyclic vibrating screen in an embodiment of the present utility model;

[0033] Figure 9 It is Figure 8 a schematic structural view of the structure at position E in.

[0034] Main reference numeral description:

[0035] 1 - vibrating screen main body, 2 - conveyor belt, 201 - collection box, 202 - temporary storage cavity, 203 - accommodation cavity, 204 - leakage hole, 205 - first bracket, 206 - first cylinder, 207 - first baffle, 208 - avoidance groove, 3 - material circulation mechanism, 301 - guide rail, 302 - second bracket, 303 - mounting plate, 304 - feeding hopper, 305 - discharge port, 306 - second baffle, 307 - second cylinder, 308 - support column. Detailed implementation manners

[0036] In order to enable those skilled in the art to better understand the technical solutions in the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0037] As Figures 1 to 9 shown, a cyclic vibrating screen in an embodiment of the present utility model includes a vibrating screen main body 1, a conveyor belt 2 and a material circulation mechanism 3.

[0038] Among them, the vibrating screen main body 1 is used for screening materials.

[0039] As Figures 1 to 9 shown, the conveyor belt 2 is installed on the lower side of the vibrating screen main body 1, and the conveyor belt 2 is used for collecting the preliminarily screened materials.

[0040] As Figures 1 to 9As shown in the figure, a material collection mechanism is provided on one side of the conveyor belt 2 for collecting and conveying the materials on the conveyor belt 2, so as to re-screen the screened materials to achieve the purpose of circular screening, reduce the particles in the screened materials, ensure the screening quality of the materials, and at the same time reduce the need for workers to re-screen the materials, relieve the burden on the workers, improve the screening efficiency of the materials, and have no impact on the subsequent processing of the materials.

[0041] Among them, the material collection mechanism includes a collection box 201. A temporary storage chamber 202 and a receiving chamber 203 are provided in the collection box 201, and the temporary storage chamber 202 is provided on the lower side of the conveyor belt 2. The materials conveyed by the conveyor belt 2 will fall into the temporary storage chamber 202 to realize the temporary storage of the materials. The materials will not directly fall into the feeding hopper 304, so that the circular screening of the materials can be realized without stopping the vibration sieve main body 1, and the screening efficiency of the materials can be improved. The receiving chamber 203 is used to accommodate the feeding hopper 304 so that the materials in the temporary storage chamber 202 can enter the feeding hopper 304.

[0042] In addition, a leakage hole 204 is provided on the side wall of the temporary storage chamber 202, and the temporary storage chamber 202 is connected to the receiving chamber 203 through the leakage hole 204. The materials in the temporary storage chamber 202 can enter the feeding hopper 304 in the receiving chamber 203 through the leakage hole 204, so as to use the feeding hopper 304 to convey the materials to the upper side of the vibration sieve main body 1 to realize the circular screening of the materials.

[0043] Specifically, a first support 205 is fixedly connected to the collection box 201. The first support 205 is used to install the first cylinder 206, and the first cylinder 206 is installed on the first support 205. The first cylinder 206 is used to control the movement of the first baffle 207.

[0044] In addition, the free end of the first cylinder 206 is connected to a first baffle 207, and the first baffle 207 covers the leakage hole 204. When the first baffle 207 covers the leakage hole 204, the materials in the temporary storage chamber 202 will not enter the receiving chamber 203. When the first baffle 207 does not cover the leakage hole 204, the materials in the temporary storage chamber 202 will enter the receiving chamber 203 through the leakage hole 204 to realize the circular screening of the materials.

[0045] Furthermore, an avoidance groove 208 is provided on the collection box 201. The avoidance groove 208 is provided on the side of the collection box 201 away from the conveyor belt 2, and the avoidance groove 208 is matched with the mounting plate 303. The avoidance groove 208 is used to accommodate the mounting plate 303 so that the feeding hopper 304 can be accommodated in the receiving chamber 203, collect the materials in the temporary storage chamber 202, and use the feeding hopper 304 to convey the materials into the vibration sieve main body 1 for circular screening.

[0046] As Figures 1 to 9As shown in the figure, the material recycling mechanism 3 is installed on one side of the vibrating screen main body 1. The material recycling mechanism 3 is used to re - convey the material into the vibrating screen main body 1 for cyclic screening of the material.

[0047] Among them, the material recycling mechanism 3 includes a pair of guide rails 301. The pair of guide rails 301 are symmetrically arranged on both sides of the material collection mechanism. The guide rails 301 are used to install the second bracket 302 and at the same time control the movement of the second bracket 302 and the feeding hopper 304, so as to better convey the material in the feeding hopper 304 into the vibrating screen main body 1 for cyclic screening. A second bracket 302 is installed between the pair of guide rails 301, and the second bracket 302 is used to install the feeding hopper 304.

[0048] Preferably, the height of the second bracket 302 is greater than the maximum height of the vibrating screen main body 1 to ensure that the feeding hopper 304 can convey the material into the vibrating screen main body 1 for cyclic screening.

[0049] In addition, a lifting motor is installed on the second bracket 302. The output end of the lifting motor is connected to a lead screw. The lead screw is threadedly connected to the mounting plate 303. When the lifting motor drives the lead screw to rotate, the mounting plate 303 can move on the second bracket 302 to control the lifting of the feeding hopper 304.

[0050] Specifically, a mounting plate 303 is installed on the second bracket 302, and the mounting plate 303 is used to install the feeding hopper 304.

[0051] As Figures 1 to 9 shown, a feeding mechanism is installed on the mounting plate 303. The feeding mechanism corresponds to the material collection mechanism. The feeding mechanism is used to re - convey the material into the vibrating screen main body 1 for cyclic screening of the material.

[0052] Among them, the feeding mechanism includes a feeding hopper 304. The feeding hopper 304 is accommodated in the accommodation cavity 203. The feeding hopper 304 is used to accommodate the material in the temporary storage cavity 202, so as to use the feeding hopper 304 to re - convey the material into the vibrating screen main body 1 to realize the cyclic screening of the material.

[0053] Preferably, the distance between the leakage hole 204 and the ground is greater than the height of the feeding hopper 304, so that the material in the temporary storage cavity 202 can enter the feeding hopper 304 through the leakage hole 204.

[0054] In addition, a discharge port 305 is provided at the bottom of the feeding hopper 304. The material in the feeding hopper 304 enters the vibrating screen main body 1 through the discharge port 305 for screening.

[0055] Specifically, the bottom of the discharge port 305 is covered with a second baffle 306. The second baffle 306 is used to cover the discharge port 305. When the feed hopper 304 collects materials, the discharge port 305 is covered by the second baffle 306. When it is necessary to discharge the materials in the feed hopper 304, the discharge port 305 is in an uncovered state.

[0056] In addition, a second cylinder 307 and a pair of guide rails are installed at the bottom of the feed hopper 304. The second baffle 306 is connected to the free end of the second cylinder 307 and is arranged between the pair of guide rails. The second cylinder 307 can be used to control the movement of the second baffle 306 between the pair of guide rails so as to realize the opening and closing of the discharge port 305.

[0057] Furthermore, a number of support columns 308 are installed at the bottom of the feed hopper 304. The length of the support columns 308 is greater than the diameter of the second cylinder 307. The support columns 308 are used to support the feed hopper 304. That is, when the feed hopper 304 is accommodated in the accommodation cavity 203, the support columns 308 are in contact with the bottom wall of the accommodation cavity 203, rather than the second cylinder 307, thereby ensuring the safety of the second cylinder 307.

[0058] Preferably, the conveyor belt 2 and the guide rail 301 used in this application are both commercially available products and can be directly purchased and used.

[0059] In specific use, the materials are conveyed into the vibrating screen main body 1, and the vibrating screen main body 1 is used to screen the materials. The screened large particles are directly discharged from the vibrating screen main body 1, and the screened materials will fall on the conveyor belt 2.

[0060] The screened materials are conveyed to the temporary storage cavity 202 by the conveyor belt 2 for temporary storage. If the feed hopper 304 is in the accommodation cavity 203, the first cylinder 206 is controlled to contract, so that the first baffle 207 connected to the first cylinder 206 is disengaged from covering the leakage hole 204. At this time, the materials in the temporary storage cavity 202 can fall into the feed hopper 304 through the leakage hole 204. If the feed hopper 304 is not in the accommodation cavity 203, the first cylinder 206 is controlled to extend, and the first baffle 207 can cover the leakage hole 204, so that the materials are stored in the temporary storage cavity 202.

[0061] When it is necessary to perform cyclic screening on the materials in the feeding hopper 304, first control the lifting of the mounting plate 303 and the feeding hopper 304 so that the feeding hopper 304 is separated from the receiving cavity 203. When the feeding hopper 304 is lifted to the upper oblique side of the vibrating screen main body 1, then control the second bracket 302 to move between a pair of guide rails 301 so that the feeding hopper 304 approaches the vibrating screen main body 1 and can be located above the vibrating screen main body 1. Control the second cylinder 307 to contract, and the second baffle 306 moves and disengages from covering the discharge port 305. At this time, the materials in the feeding hopper 304 will enter the vibrating screen main body 1 through the discharge port 305 for cyclic screening of the materials. During the process of the feeding hopper 304 conveying materials, the vibrating screen main body 1 does not stop, ensuring the screening efficiency of the materials.

[0062] After the materials in the feeding hopper 304 are discharged, control the second bracket 302 to move in the reverse direction so that the feeding hopper 304 moves away from the vibrating screen main body 1. Control the feeding hopper 304 to descend so that the feeding hopper 304 re-enters the receiving cavity 203. Open the first baffle 207 so that the materials in the temporary storage cavity 202 enter the feeding hopper 304 again. By repeating this cycle, cyclic screening of the materials can be achieved.

[0063] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0064] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A circulating vibrating screen, characterized in that: include: Vibrating screen body; A conveyor belt is installed on the lower side of the vibrating screen body, and the conveyor belt is used to collect the materials after preliminary screening. A material collecting mechanism is provided on one side of the conveyor belt, and the material collecting mechanism includes a collecting box, and a temporary storage chamber and a receiving chamber are provided in the collecting box. The temporary storage chamber is provided on the lower side of the conveyor belt, and a leakage hole is provided on the side wall of the temporary storage chamber, and the temporary storage chamber is connected with the receiving chamber through the leakage hole; A material circulation mechanism is installed on one side of the vibrating screen body, and the material circulation mechanism includes a pair of guide rails, which are symmetrically arranged on both sides of the material collecting mechanism. A second bracket is installed between the pair of guide rails, and a mounting plate is installed on the second bracket. A feeding mechanism is installed on the mounting plate, and the feeding mechanism corresponds to the material collecting mechanism.

2. A circulating vibrating screen according to claim 1, characterized in that: A first bracket is fixedly connected to the collection box, a first cylinder is mounted on the first bracket, a first baffle is connected to a free end of the first cylinder, and the first baffle covers the leakage hole.

3. A circulating vibrating screen according to claim 2, characterized in that: The collecting box is provided with a avoidance groove, the avoidance groove is arranged on a side of the collecting box away from the conveyor belt, and the avoidance groove matches the mounting plate.

4. A circulating vibrating screen according to claim 1, characterized in that: The height of the second bracket is greater than the maximum height of the vibrating screen body.

5. A circulating vibrating screen according to claim 4, characterized in that: The feeding mechanism comprises a feeding hopper, and the feeding hopper is accommodated in the accommodating cavity. The distance between the leakage hole and the ground is greater than the height of the feeding hopper.

6. A circulating vibrating screen according to claim 5, characterized in that: A discharge port is provided at the bottom of the feeding hopper, and the bottom of the discharge port is covered with a second baffle.

7. A circulating vibrating screen according to claim 6, characterized in that: A second cylinder and a pair of guide rails are installed at the bottom of the feeding hopper, and the second baffle is connected to the free end of the second cylinder and is arranged between the pair of guide rails.

8. A circulating vibrating screen according to claim 7, characterized in that: A plurality of pillars are installed at the bottom of the feeding hopper, and the length of the pillars is greater than the diameter of the second cylinder.

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