Conical drum screen

Abstract

The utility model relates to a conical drum screen, which belongs to the technical field of drum screens, and comprises an equipment bracket, a drum screen main body, a collecting box, an air box and a sealing bearing, the equipment bracket is fixedly connected with a driving motor, the equipment bracket is rotatably connected with a driving barrel, and the outer wall of the driving barrel is uniformly and fixedly provided with supporting rods; the supporting rods are fixedly connected with the inner wall of the drum screen body, the equipment support fixedly communicates with a feeding hopper, a discharging hopper and a screening hopper, the equipment support is rotationally connected with a grinding roller, the collecting box is arranged at an outlet of the screening hopper, the air bellow fixedly communicates with a fan, and a dust filtering frame and an electric heater are fixedly installed on the inner wall of the air bellow. According to the salt screening device, salt materials can be screened in a grading mode, salt particles with different particle sizes can be separated conveniently, subsequent processing is facilitated, salt agglomerates can be ground and smashed through the grinding rollers in the rotating process of the drum screen, the hot air drying assembly is arranged, the salt materials can be dried in the smashing and screening process, and the salt materials are prevented from being agglomerated again due to moisture after being screened.

Description

Technical Field

[0001] The utility model relates to the technical field of drum screens, in particular to a conical drum screen. Background Art

[0002] A drum screen is a kind of machinery widely used in the sorting technology. It has high sorting accuracy. The cylinder of the drum screen is generally divided into several sections, which can be determined according to specific conditions. The sieve holes are arranged from small to large, and the aperture of the sieve holes on each section is the same. It mainly consists of a motor, a reducer, a drum device, a frame, a sealing cover, and a feeding and discharging port.

[0003] After retrieval, a Chinese patent with the publication number CN202020466133.9 discloses a special conical drum screen. By providing a sieve plate and a vibrator on the lower surface of the sieve plate, the sieve plate pre-screens the raw materials, so that larger salt lumps and scale pieces are screened out and discharged through the coarse material outlet, avoiding larger salt lumps and scale pieces from entering the drum screen, thereby improving the screening efficiency of the drum screen and extending the service life of the drum screen. By providing a rotating rod with support rods evenly arranged thereon, and the support rods are welded to the inner surface of the drum screen, the rotating rod drives the drum screen to rotate, and the drum screen is rotationally clamped in the card slot of the outer shell through a snap ring, so that when the rotating rod drives the drum screen to rotate, the drum screen rotates stably. When the support rods rotate, they effectively disperse the salt lumps and improve the screening efficiency.

[0004] The above technical solution has the following defects. Although such a conical drum screen structure can screen salt raw materials during rotation and disperse the salt raw materials through the support rods, in actual use, the reason for the salt raw materials to agglomerate is that they absorb moisture. Only by dispersing and screening cannot effectively remove the moisture in the salt particles. In order to facilitate the rapid screening of salt raw materials and dry the crushed salt raw materials, a conical drum screen is now proposed, which can classify and screen salt materials, facilitate the separation of salt particles with different particle sizes for subsequent separate processing. During the rotation of the drum screen, the salt agglomerates can be ground and crushed by grinding rollers, and a hot air drying component is provided, so that the salt materials can be dried during the crushing and screening process to prevent them from agglomerating again due to moisture after screening.

[0005] In view of this, this creation improves and solves the above problems, conducts intensive research and combines with theoretical application, and finally proposes a technical solution with reasonable design and effective improvement of the above defects.

[0006] The information disclosed in this background art section is only intended to deepen the understanding of the overall background art of the utility model, and should not be regarded as an admission or any form of suggestion that this information constitutes the prior art known to those skilled in the art. Summary of the Utility Model

[0007] The utility model provides a conical drum sieve, which solves the problems raised in the above background. It can classify and screen salt materials, facilitating the separation of salt grains with different particle sizes for subsequent separate processing. During the rotation of the drum sieve, the salt lumps can be ground and crushed by the grinding rollers, and a hot air drying component is provided, enabling the salt materials to be dried during the crushing and screening process to prevent them from caking again due to moisture after screening.

[0008] The solution of the utility model to the above technical problems is as follows: A conical drum sieve includes an equipment support, a drum sieve main body, a collection box, an air box, and a sealing bearing. The equipment support is fixedly connected with a driving motor, the equipment support is rotatably connected with a driving cylinder, the outer wall of the driving cylinder is uniformly and fixedly installed with support rods, and the support rods are fixedly connected with the inner wall of the drum sieve main body. The equipment support is fixedly communicated with a feeding hopper, a discharging hopper, and a screening hopper. The equipment support is rotatably connected with grinding rollers. The collection box is placed at the outlet of the screening hopper. The air box is fixedly communicated with a blower, the inner wall of the air box is fixedly installed with a dust filtering frame and an electric heater. The dust filtering frame is installed with a dust filtering cloth bag by screws. The air box is fixedly communicated with an exhaust valve, the exhaust valve is fixedly communicated with an exhaust pipe, and the exhaust pipe is communicated with the driving cylinder through a sealing bearing. The outer wall of the driving cylinder is uniformly and fixedly communicated with air outlet nozzles;

[0009] The drum sieve main body includes a drum frame and screening meshes. There are multiple screening meshes, and the pore diameters of the multiple screening meshes increase in sequence.

[0010] Based on the above technical solutions, the utility model can be further improved as follows.

[0011] Further, the discharging hopper is sequentially provided with multiple ones corresponding to the screening meshes. The top of the discharging hopper is set as an inclined surface structure and placed at the bottom of the screening mesh. Multiple groups of screening meshes can classify and screen salt during rotation, and the discharging hopper can be used to collect salt particles with different particle sizes.

[0012] Further, the drum sieve main body is set as a conical structure, and the grinding rollers are closely attached to the inner wall of the drum sieve main body. The conical drum sieve main body facilitates the downward inclination of salt particles in the drum sieve main body, and the grinding rollers can grind salt lumps during the rotation of the drum sieve main body.

[0013] Further, a dust filtering net is fixedly installed at the top of the equipment support. The dust filtering net can filter the floating dust at the top, and the drying air can also be discharged through the dust filtering net.

[0014] Further, the air box is provided with a maintenance door. By opening the maintenance door, the dust filtered in the dust filtering cloth bag can be collected and processed.

[0015] Further, the driving end of the driving motor is fixed to the driving cylinder.

[0016] Furthermore, both ends of the sealed bearing are respectively connected to the exhaust pipe and the driving cylinder, so that the exhaust pipe and the driving cylinder can be kept in communication, and the driving cylinder will not drive the exhaust pipe to rotate during the rotation process.

[0017] The utility model provides a conical drum sieve, which has the following advantages:

[0018] 1. Salt materials can be introduced into the main body of the drum sieve through the feeding hopper. The driving motor can drive the driving cylinder to rotate. The driving cylinder is connected to the main body of the drum sieve through the support rod, so that the driving cylinder can drive the rotation inside the equipment support. Multiple groups of screening meshes can classify and screen the salt materials. Salt particles of different particle sizes can be discharged through the bottom discharging hopper respectively for subsequent separate processing, while the large particle impurities screened out can be discharged into the dust filter net through the screening hopper for collection;

[0019] 2. During the rotation of the main body of the drum sieve, the grinding roller can grind the salt materials to prevent the salt from caking and affecting the screening. Starting the fan can draw external air into the air box. The dust filter bag of the dust filter frame can filter the drawn air to prevent dust from polluting the salt. The electric heater can heat the air. The heated and dried air can be transmitted to the driving cylinder through the exhaust valve, exhaust pipe and sealed bearing, and the dried air can be evenly discharged through the air outlet nozzle, so as to carry out hot air drying on the salt particles in the main body of the drum sieve to reduce the moisture in the salt particles and prevent adhesion;

[0020] 3. Such a conical drum sieve can classify and screen the salt materials, which is convenient for separating salt particles of different particle sizes for subsequent separate processing. During the rotation of the drum sieve, the grinding roller can grind and crush the salt caking, and a hot air drying assembly is provided, so that the salt materials can be dried during the crushing and screening process to prevent them from caking again due to moisture after screening.

[0021] The above description is only an overview of the technical solution of the utility model. In order to be able to understand the technical means of the utility model more clearly and implement it according to the content of the description, the following takes the preferred embodiment of the utility model and combines with the attached drawings to describe in detail as follows. The specific implementation manner of the utility model is given in detail by the following embodiments and their attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The attached drawings described herein are used to provide a further understanding of the utility model, form a part of this application, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation to the utility model. In the drawings:

[0023] Figure 1 is a schematic structural diagram of a conical drum sieve provided by an embodiment of the utility model;

[0024] Figure 2The front view of a conical drum screen provided by an embodiment of the present utility model;

[0025] Figure 3 The structural schematic diagram of a driving drum in a conical drum screen provided by an embodiment of the present utility model;

[0026] Figure 4 The structural schematic diagram of a drum screen main body in a conical drum screen provided by an embodiment of the present utility model.

[0027] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0028] 1. Equipment support; 2. Support rod; 3. Drum screen main body; 301. Drum frame; 302. Screening mesh; 4. Feeding hopper; 5. Discharging hopper; 6. Screening material hopper; 7. Grinding roller; 8. Dust filter screen; 9. Collection box; 10. Air box; 11. Sealed bearing; 12. Fan; 13. Driving drum; 14. Dust filter frame; 15. Driving motor; 16. Electric heater; 17. Dust filter bag; 18. Exhaust valve; 19. Exhaust pipe; 20. Air outlet nozzle. Detailed implementation manners

[0029] The following combines the attached Figures 1-4 The principles and features of the present utility model are described. The examples given are only used to explain the present utility model and are not used to limit the scope of the present utility model. In the following paragraphs, the present utility model is described more specifically by way of example with reference to the attached drawings. According to the following description and the claims, the advantages and features of the present utility model will be clearer. It should be noted that the attached drawings are all in a very simplified form and use non-precise scales, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present utility model.

[0030] It should be noted that when a component is referred to as "fixed to" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used herein in the description of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0032] As Figures 1-4 shown, a conical drum sieve includes an equipment support 1, a drum sieve main body 3, a collection box 9, a wind box 10, and a sealing bearing 11. The equipment support 1 is fixedly connected with a driving motor 15. The equipment support 1 is rotatably connected with a driving cylinder 13. The outer wall of the driving cylinder 13 is uniformly and fixedly installed with support rods 2. The support rods 2 are fixedly connected with the inner wall of the drum sieve main body 3. The equipment support 1 is fixedly communicated with a feeding hopper 4, a discharging hopper 5, and a screening hopper 6. The equipment support 1 is rotatably connected with a grinding roller 7. The collection box 9 is placed at the outlet of the screening hopper 6. The wind box 10 is fixedly communicated with a blower 12. The inner wall of the wind box 10 is fixedly installed with a dust filtering frame 14 and an electric heater 16. The dust filtering frame 14 is installed with a dust filtering cloth bag 17 by screws. The wind box 10 is fixedly communicated with an exhaust valve 18. The exhaust valve 18 is fixedly communicated with an exhaust pipe 19. The exhaust pipe 19 is communicated with the driving cylinder 13 through the sealing bearing 11. The outer wall of the driving cylinder 13 is uniformly and fixedly communicated with air outlet nozzles 20;

[0033] The drum sieve main body 3 includes a drum frame 301 and a screening net 302. There are multiple screening nets 302, and the apertures of the multiple screening nets 302 increase in sequence.

[0034] Preferably, the discharging hopper 5 is provided with multiple ones corresponding to the screening nets 302 in sequence. The top of the discharging hopper 5 is set as an inclined surface structure and placed at the bottom of the screening net 302. The multiple groups of screening nets 302 can classify and screen the salt during the rotation process, and the discharging hopper 5 can be used to collect salt particles with different particle sizes.

[0035] Preferably, the drum sieve main body 3 is set as a conical structure. The grinding roller 7 is closely attached to the inner wall of the drum sieve main body 3. The conical drum sieve main body 3 facilitates the salt particles to slide down obliquely inside the drum sieve main body 3, and the grinding roller 7 can grind the salt blocks during the rotation of the drum sieve main body 3.

[0036] Preferably, a dust filtering net 8 is fixedly installed at the top of the equipment support 1. The dust filtering net 8 can filter the floating dust at the top, and the drying air can also be discharged through the dust filtering net 8.

[0037] Preferably, the wind box 10 is provided with a maintenance door. Opening the maintenance door can collect and process the dust filtered in the dust filtering cloth bag 17.

[0038] Preferably, the driving end of the driving motor 15 is fixed to the driving cylinder 13.

[0039] Preferably, both ends of the sealing bearing 11 are respectively connected with the exhaust pipe 19 and the driving cylinder 13, so that the exhaust pipe 19 and the driving cylinder 13 can remain communicated, and the driving cylinder 13 will not drive the exhaust pipe 19 to rotate during the rotation process.

[0040] The specific working principle and usage method of the present utility model are as follows: Salt materials can be introduced into the main body 3 of the drum sieve through the feeding hopper 4. The driving motor 15 can drive the driving cylinder 13 to rotate. The driving cylinder 13 is connected to the main body 3 of the drum sieve through the support rod 2, so that the driving cylinder 13 can drive the rotation within the equipment support 1. During the rotation of the main body 3 of the drum sieve, the grinding roller 7 can grind the salt materials to prevent salt caking from affecting screening. Starting the blower 12 can draw external air into the air box 10. The dust filter bag 17 of the dust filter frame 14 can filter the drawn air to prevent dust from contaminating the salt. The electric heater 16 can heat the air. The heated and dried air can be transmitted into the driving cylinder 13 through the exhaust valve 18, the exhaust pipe 19, and the sealed bearing 11. The dried air can be evenly discharged through the air outlet nozzle 20, so as to conduct hot air drying on the salt particles in the main body 3 of the drum sieve to reduce the moisture in the salt particles and prevent adhesion. Multiple groups of screening meshes 302 can conduct grading screening on the salt materials. Salt particles of different particle sizes can be discharged through the bottom discharge hopper 5 respectively for subsequent separate processing. The large particle impurities screened out can be discharged into the dust filter net 8 through the screening hopper 6 for collection.

[0041] The above is only the preferred embodiment of the present utility model, and does not impose any form of limitation on the present utility model; Any ordinary technician in the industry can smoothly implement the present utility model according to the illustrations in the specification and the above description; However, any equivalent changes such as slight modifications, refinements, and evolutions made by those skilled in the art within the scope of the technical solution of the present utility model by using the technical content disclosed above are all equivalent embodiments of the present utility model; At the same time, any equivalent changes, modifications, and evolutions made to the above embodiments based on the essential technology of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A conical drum screen, comprising an equipment support (1), a drum screen body (3), a collecting box (9), a bellows (10), and a sealed bearing (11), characterized in that: The equipment support (1) is fixedly connected to a driving motor (15), the equipment support (1) is rotatably connected to a driving cylinder (13), the outer wall of the driving cylinder (13) is evenly fixedly mounted with a support rod (2), the support rod (2) is fixedly connected to the inner wall of the drum screen body (3), the equipment support (1) is fixedly connected to a feed hopper (4), a discharge hopper (5), and a screening hopper (6), the equipment support (1) is rotatably connected to a grinding roller (7), the collecting box (9) is placed at the outlet of the screening hopper (6), and the bellows (10) is fixedly connected to a fan (12), a dust filter frame (14) and an electric heater (16) are fixedly mounted on the inner wall of the bellows (10), a dust filter bag (17) is mounted on the dust filter frame (14) by screws, the bellows (10) is fixedly connected to an exhaust valve (18), the exhaust valve (18) is fixedly connected to an exhaust pipe (19), the exhaust pipe (19) is connected to the drive cylinder (13) through a sealing bearing (11), and the outer wall of the drive cylinder (13) is evenly fixedly connected to an air outlet nozzle (20); The drum screen body (3) comprises a drum frame (301) and a screening net (302), wherein a plurality of screening nets (302) are provided, and the apertures of the plurality of screening nets (302) increase in sequence.

2. A conical drum screen according to claim 1, characterized in that: The discharge hopper (5) is provided with a plurality of discharge hoppers (5) in sequence corresponding to the screening nets (302), and the top of the discharge hopper (5) is provided with an inclined structure placed at the bottom of the screening net (302).

3. A conical drum screen according to claim 1, characterized in that: The drum screen body (3) is configured as a conical structure, and the grinding roller (7) is tightly fitted to the inner wall of the drum screen body (3).

4. A conical drum screen according to claim 1, characterized in that: A dust filter (8) is fixedly mounted on the top of the equipment support (1).

5. The conical drum screen according to claim 1, characterized in that: The wind box (10) is provided with an inspection door.

6. The conical drum screen according to claim 1, characterized in that: The driving end of the driving motor (15) is fixed to the driving cylinder (13).

7. The conical drum screen according to claim 1, characterized in that: The two ends of the sealed bearing (11) are respectively connected to the exhaust pipe (19) and the driving cylinder (13).

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