CN216420087U

CN216420087U - Drum screen based on belt discharging

Info

Publication number: CN216420087U
Application number: CN202122768346.4U
Authority: CN
Inventors: 张田; 喻明军; 吴革雄; 纪振明; 唐双华
Original assignee: Zhongye Changtian International Engineering Co Ltd
Current assignee: Zhongye Changtian International Engineering Co Ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-05-03
Anticipated expiration: 2031-11-12

Abstract

The utility model provides a drum sieve based on belt is arranged material which characterized in that: the cylinder screen comprises a cylinder (1), a liquid tank (2), a belt conveyor (3) and a driving device (4); the cylinder (1) is arranged horizontally, and the wall of the cylinder (1) is a screen with sieve pores; the liquid tank (2) is arranged below the cylinder (1); a belt conveyor (3) is arranged at the position of a central axis in the cylinder (1), and the belt conveyor (3) outwards penetrates through end covers at two ends of the cylinder (1); wherein, a driving device (4) is arranged on the end cover of the cylinder (1) at least one end; the driving device (4) drives the cylinder (1) to rotate around a central axis; the end cover of the feeding end of the cylinder (1) is provided with a feeding hole (101). The utility model discloses band conveyer is add to axis position in the drum, adopts band conveyer can realize that the dry process of big throughput arranges the material, has expanded the application range of drum sieve, is convenient for realize the maximization of drum sieve.

Description

Drum screen based on belt discharging

Technical Field

The utility model relates to a screening plant, concretely relates to drum sieve based on belt row material belongs to material screening equipment field.

Background

The cylindrical screen is formed by winding the screen into a cylinder, the whole screen rotates around the axis of the cylinder, and the axis is normally provided with a small inclination angle. The material is fed from one end of the drum, fine material passes through the mesh of the drum work surface, and coarse material is discharged from the other end of the drum. The drum screen has low rotation speed, stable operation and good power balance. However, the cylindrical screen is less used as a screening device because the screen holes are easily blocked, the screening efficiency is low, the working area of the cylindrical screen is small, and the productivity is low.

The cylindrical screen can adopt a dry feeding mode and a wet feeding mode: dry feeding is commonly used in industries such as garbage disposal at present and is used for separating large light substances; the wet-process feeding slurry has larger passing capacity and is commonly used for slag separation operation with easy screening and less screen size.

In order to improve the screening efficiency of the cylindrical screen and promote slag discharge, helical blades are usually arranged inside the cylindrical screen to push oversize materials towards the discharge end while stirring the ore slurry. Meanwhile, in order to prevent the cylinder screen from being blocked, a back washing device is added to remove materials blocked in the screen holes.

Although the screening efficiency of the cylindrical screen is improved to a certain extent in the prior art, the improvement range is limited under the influence of the working principle of the cylindrical screen, and the application range of the cylindrical screen is not obviously expanded.

SUMMERY OF THE UTILITY MODEL

The problem that screening efficiency is low, effective working area is little, throughput is low to drum sieve among the prior art, the utility model discloses optimize the improvement to it on the basis of current drum sieve, provided a drum sieve based on belt row material. Band conveyer is add to the axis position of this drum sieve in the drum, sets up the cistern in the drum below simultaneously, maintains certain liquid level in the cistern, and drum sieve lower half immerses the liquid level below, promptly the utility model discloses when realizing high-efficient wet screening, realized the dry process through band conveyer and arranged the material, band conveyer's setting greatly increased the dry process and arranged the throughput of material drum sieve, expanded the application range of drum sieve, be convenient for realize the maximization of drum sieve.

According to the utility model discloses an embodiment provides a drum sieve based on belt row material.

A drum sieve based on belt discharging comprises a drum, a liquid tank, a belt conveyor and a driving device. The cylinder is arranged horizontally, and the wall of the cylinder is a screen with screen holes. The liquid tank is arranged below the cylinder. A belt conveyor is arranged at the position of a central axis in the cylinder and penetrates through the end covers at the two ends of the cylinder outwards. Wherein, the cylinder end cover at least one end is provided with a driving device. The drive means drives the cylinder in rotation about the central axis. The end cover of the feeding end of the cylinder is provided with a feeding hole.

The utility model discloses in, be equipped with the lifting plate on the inner wall of drum. Preferably, the lifting plates are provided in a plurality of pieces, and the plurality of lifting plates are uniformly distributed along the circumferential direction of the cylinder. Preferably, the lifting plate is a sieve plate or a punching plate.

Preferably, the lifting plates are radially displaced from the cylinder in cross section of the cylinder. Preferably, the angle between the lifting plate and the radial direction of the cylinder is α, wherein: the value range of alpha is 1-45 degrees, preferably 2-30 degrees, and more preferably 3-20 degrees.

The utility model discloses in, the liquid level in the cistern is higher than the minimum of drum inner wall, and is less than band conveyer's the height that sets up. Preferably, the liquid level in the flume is above 1/3, preferably 1/2, the height of the lower half of the cylinder.

The utility model discloses in, this drum sieve still includes the axis of rotation, the axis of rotation sets up on the end cover at drum both ends. Wherein, the rotating shaft at least one end is provided with a driving device. The driving device drives the rotating shaft to rotate, so that the cylinder is driven to rotate.

In the present invention, the driving device includes a gear system and a motor. The gear transmission system is arranged on the rotating shaft, and the motor is connected with the gear transmission system. The motor drives the gear transmission system to rotate, and the gear transmission system drives the rotating shaft to rotate, so that the cylinder is driven to rotate.

The utility model discloses in, the bottom of cistern is equipped with the bin outlet. An underflow pipe is arranged at the discharge opening. Preferably, the underflow pipe is provided with an underflow valve.

Preferably, an overflow port is provided on the side wall of the liquid tank. Preferably, an overflow pipe is arranged at the overflow port.

The utility model discloses in, this drum sieve still includes the feed pipe. The feeding end of the feeding pipe extends into the feeding port of the cylinder.

Preferably, the cylindrical screen further comprises a flushing device. The flushing device is arranged outside the upper half part of the cylinder. Preferably, the flushing device is a flushing water pipe.

The utility model discloses optimize the improvement to it on the basis of current drum sieve, provided a drum sieve based on belt row material. The cylinder screen comprises a cylinder, a liquid tank, a belt conveyor and a driving device. The cylinder is arranged horizontally, and the wall of the cylinder is a screen with screen holes. Wherein, the size of the sieve pore can be adjusted according to the requirement of the sieving granularity. The liquid tank is arranged below the cylinder, and the lower half part of the cylinder is immersed below the liquid level in the liquid tank, so that the wet screening with higher efficiency can be realized by stirring the raw materials to be treated. Band conveyer sets up the axis position in the drum, and band conveyer outwards passes the end cover at drum both ends, and band conveyer can discharge the material on the sieve that obtains after the screening from the drum sieve promptly, and can realize that the dry process is arranged the material. The driving device is arranged on the end cover of the cylinder and drives the cylinder to rotate around the central axis, so that the raw materials to be treated are efficiently screened in the rotating process. The utility model discloses in, drive arrangement can set up on the end cover of drum one end as required, also can set up simultaneously on the end cover at drum both ends. The end cover of the feeding end of the cylinder is provided with a feeding hole, and the feeding end of the feeding pipe extends into the feeding hole of the cylinder, so that raw materials to be treated are fed into the cylinder for screening.

Preferably, the cylinder is internally provided with a plurality of lifting plates. The plurality of lifting plates are arranged on the inner wall of the cylinder (namely the inner side of the cylinder wall of the cylinder), and the plurality of lifting plates are uniformly distributed along the circumferential direction of the cylinder. The lifting plate is made of a sieve plate or a punching plate and has a water permeable effect. In the process of rotating along with the cylindrical sieve body, the lifting plate can stir slurry in the lower sieving area, so that the cleaning and sieving efficiency is improved; in the process of lifting the materials on the sieve, the lifting plate can facilitate the dehydration of the materials on the sieve. To make the above-mentioned function of the lifting plates more effective, the lifting plates are arranged radially offset from the cylinder in the cross-section of the cylinder. The radial direction of the cylinder refers to the direction of the connecting position of the lifting plate and the inner wall of the cylinder passing through the axis in the cross section of the cylinder, namely, each lifting plate corresponds to one radial direction of the cylinder. Generally, the lifting plate is radially angled with respect to the cylinder by an angle α, wherein: the value range of alpha is 1-45 degrees, preferably 2-30 degrees, and more preferably 3-20 degrees.

Drum sieve based on belt row material, this drum sieve includes shaftless drum, axis position in the drum sets up band conveyer, successively pass through wet-type screening when pending raw materials, the material dehydration of oversize, the lifting plate promotes the material of oversize to drum upper portion, the material of oversize after the dehydration this moment falls into in the band conveyer, can realize the dry process of the material of oversize promptly through band conveyer and arrange the material, and band conveyer often sets up or tends to the level setting for the level, therefore band conveyer's setting greatly increased the throughput of dry process row material drum sieve, the application range of drum sieve has been expanded, thereby be convenient for realize the maximization of drum sieve. Preferably, in order to realize the wet screening with higher efficiency, the utility model discloses with the effective screening region complete submergence of drum screen frame below the liquid level in the cistern. In particular, to ensure an effective wet screening, the liquid level in the liquid bath is first at least higher than the lowest point of the inner wall of the cylinder, while the dry discharge, which does not affect the belt conveyor, is carried out, so that the liquid level in the liquid bath is lower than the set height of the belt conveyor. In order to suitably enlarge the effective area of the wet sieving, the liquid level in the flume is preferably higher than 1/3, more preferably higher than 1/2, of the height of the lower half of the cylinder.

The utility model discloses in, still be equipped with the axis of rotation on the end cover at drum both ends. The driving device is arranged on the rotating shaft at least one end, namely the driving device can be arranged on the rotating shaft at one end of the cylinder according to requirements and can also be arranged on the rotating shafts at two ends of the cylinder simultaneously. The driving device drives the rotating shaft to rotate, so that the cylinder is driven to rotate, and efficient screening is completed in the rotating process. The drive device comprises a gear transmission system and a motor. Wherein, gear drive system sets up on the axis of rotation, and the motor is connected with gear drive system. The motor drives the gear transmission system to rotate, and the gear transmission system drives the rotating shaft to rotate so as to drive the cylinder to rotate, namely the motor drives the cylinder to rotate through the gear transmission system and the rotating shaft.

The utility model discloses set up the cistern in the drum below, the subsieve screen material that obtains after the screening discharges into the cistern earlier, and the bottom flow tube that rethread liquid tank bottom discharge opening department set up discharges into next operation. The underflow pipe is provided with a underflow valve. The side wall of the liquid tank is provided with an overflow port, the overflow port is also provided with an overflow pipe, and the liquid level in the liquid tank can be controlled by controlling the underflow valve and utilizing the overflow pipe. In this application, the liquid in the cistern is not specifically limited, can realize pending raw materials high-efficient wet screening can, for example the cistern can set up to the water tank, maintains certain water level as required in the water tank promptly this moment.

The utility model discloses still be equipped with washing unit in the first outside of drum, washing unit is used for washing and the clear sieve mesh on stifled drum wall to ensure the high-efficient screening of follow-up operation in-process. Furthermore, in order not to interfere with the dry discharge of the screened oversize material, the flushing device is generally arranged in the region of the lifting plate through which the material is discharged. The flushing device is not particularly limited, for example the flushing device may be a stationary flushing water pipe.

In this application, be convenient for the normal implementation of each part or the structure function of drum sieve, the utility model discloses still be equipped with support, support frame, bearing roller isotructure, the setting of this type of structure is used for providing the holding power or playing the fixed action to whole device or partial part in the device.

Drum sieve based on belt row material in the during operation, the pending raw materials is passed through in the feed pipe gives into rotatory drum sieve. Because a certain liquid level is maintained in the liquid tank below the cylinder, the effective screening area of the cylinder screen body is completely immersed below the liquid level, and wet screening with higher efficiency can be realized by stirring raw material slurry. And the undersize material obtained after screening enters the liquid tank through the screen on the wall of the cylinder, and is discharged into the next operation through the bottom flow pipe at the bottom of the liquid tank. The material on the sieve utilizes the lifting plate to lift to the eminence along with the rotation of drum screen frame, and the material on the sieve accomplishes the dehydration when promoting, falls into the band conveyer again and discharges. After the cylindrical sieve body is discharged, a flushing device is adopted for back flushing in the rotating process, and the blocked sieve pores are cleaned and then continuously screened.

In the present application, the "cylindrical screen body" and the "cylinder" have the same meaning expression.

Compared with the prior art, the utility model discloses following beneficial technological effect has:

1. the utility model discloses band conveyer is add to axis position in the drum, and the dry process that adopts band conveyer can realize big throughput arranges the material, and band conveyer's setting has increased the throughput that the dry process arranged the material drum sieve in the wet-type screening promptly, has expanded the application range of drum sieve, is convenient for realize the maximization of drum sieve.

2. The utility model discloses a can maintain the cistern of certain liquid level height, will effectively sieve regional complete submergence below the liquid level to utilize the stirring of raw materials slurry to realize the higher wet-type screening of efficiency.

3. The utility model discloses at the inside water-permeable lifting plate that is equipped with of drum, be equipped with washing unit in the drum outside simultaneously, promptly at the rotation in-process of drum sieve, on the circumferencial direction, successively accomplish material screening, oversize thing dehydration, oversize thing and unload outer row, screen cloth washing process of unloading, realized the high-efficient utilization to screening area.

Drawings

FIG. 1 is a schematic diagram of the operation of a prior art cylindrical screen;

FIG. 2 is a schematic structural view of a drum screen based on belt discharging of the present invention;

figure 3 is a side view of the belt discharge based cylindrical screen of the present invention.

Reference numerals:

1: a cylinder; 101: a feed inlet; 2: a liquid bath; 201: a discharge outlet; 202: an overflow port; 3: a belt conveyor; 4: a drive device; 401: a gear transmission system; 402: an electric motor; 5: a lifting plate; 6: a rotating shaft; 7: an underflow pipe; 8: a underflow valve; 9: an overflow pipe; 10: a feed pipe; 11: and (5) flushing the device.

Detailed Description

A drum screen based on belt discharging comprises a drum 1, a liquid tank 2, a belt conveyor 3 and a driving device 4. The cylinder 1 is arranged horizontally, and the wall of the cylinder 1 is a screen with screen holes. The liquid tank 2 is disposed below the cylinder 1. A belt conveyor 3 is arranged at the position of a central axis in the cylinder 1, and the belt conveyor 3 outwards penetrates through end covers at two ends of the cylinder 1. Wherein, the end cover of the cylinder 1 at least one end is provided with a driving device 4. The drive means 4 drive the cylinder 1 in rotation about the central axis. The end cover of the feeding end of the cylinder 1 is provided with a feeding hole 101.

In the present invention, a lifting plate 5 is provided on the inner wall of the cylinder 1. Preferably, the lifting plates 5 are provided in a plurality of pieces, and the plurality of lifting plates 5 are uniformly distributed along the circumferential direction of the cylinder 1. Preferably, the lifting plate 5 is a sieve plate or a punched plate.

Preferably, the lifting plates 5 are radially displaced from the cylinder 1 in the cross-section of the cylinder 1. Preferably, the angle between the lifting plate 5 and the radial direction of the cylinder 1 is α, wherein: the value range of alpha is 1-45 degrees, preferably 2-30 degrees, and more preferably 3-20 degrees.

The utility model discloses in, the liquid level in cistern 2 is higher than the minimum of 1 inner walls of drum, and is less than band conveyer 3 and sets up the height. Preferably, the liquid level in the liquid tank 2 is higher than 1/3, preferably 1/2, the height of the lower half of the cylinder 1.

The utility model discloses in, this drum sieve still includes axis of rotation 6, axis of rotation 6 sets up on the end cover at 1 both ends of drum. Wherein, a driving device 4 is arranged on the rotating shaft 6 at least one end. The drive means 4 drive the rotation shaft 6 in rotation, thereby rotating the cylinder 1.

In the present invention, the driving device 4 includes a gear system 401 and a motor 402. A gear transmission system 401 is provided on the rotating shaft 6, and an electric motor 402 is connected to the gear transmission system 401. The motor 402 drives the gear transmission system 401 to rotate, and the gear transmission system 401 drives the rotating shaft 6 to rotate, thereby driving the cylinder 1 to rotate.

In the present invention, the bottom of the liquid tank 2 is provided with a discharge port 201. An underflow pipe 7 is arranged at the discharge opening 201. Preferably, an underflow valve 8 is arranged on the underflow pipe 7.

Preferably, an overflow port 202 is provided in a side wall of the liquid tank 2. Preferably, an overflow pipe 9 is arranged at the overflow port 202.

In the present invention, the cylindrical screen further comprises a feeding pipe 10. The feed end of the feed pipe 10 extends into the feed opening 101 of the cylinder 1.

Preferably, the cylindrical screen also comprises a flushing device 11. Said flushing means 11 are arranged outside the upper half of the cylinder 1. Preferably, the flushing device 11 is a flushing water pipe.

Example 1

As shown in fig. 2-3, a belt-based cylindrical screen comprises a cylinder 1, a liquid tank 2, a belt conveyor 3, and a driving device 4. The cylinder 1 is arranged horizontally, and the wall of the cylinder 1 is a screen with screen holes. The liquid tank 2 is disposed below the cylinder 1. A belt conveyor 3 is arranged at the position of a central axis in the cylinder 1, and the belt conveyor 3 outwards penetrates through end covers at two ends of the cylinder 1. Wherein, the end cover at one end of the cylinder 1 is provided with a driving device 4. The drive means 4 drive the cylinder 1 in rotation about the central axis. The end cover of the feeding end of the cylinder 1 is provided with a feeding hole 101.

Example 2

Example 1 was repeated except that the inner wall of the cylinder 1 was provided with a lifting plate 5. The number of the lifting plates 5 is 8, and the 8 lifting plates 5 are evenly distributed along the circumferential direction of the cylinder 1.

Example 3

Example 2 is repeated except that the lifting plate 5 is a screen plate.

Example 4

Example 2 is repeated except that the lifting plate 5 is a punched plate.

Example 5

Example 3 is repeated except that the lifting plates 5 are arranged radially offset from the cylinder 1 in the cross-section of the cylinder 1. The angle between the lifting plate 5 and the cylinder 1 in the radial direction is α, wherein: alpha is 10 deg.

Example 6

Example 5 is repeated except that the angle α between the lifting plate 5 and the radial direction of the cylinder 1 is 5 °.

Example 7

Example 5 is repeated except that the angle α between the lifting plate 5 and the radial direction of the cylinder 1 is 20 °.

Example 8

Example 5 was repeated except that the liquid level in the liquid tank 2 was higher than the lowest point of the inner wall of the cylinder 1 and lower than the set height of the belt conveyor 3.

Example 9

Example 8 is repeated except that the liquid level in the tank 2 is 1/3 above the height of the lower half of the cylinder 1.

Example 10

Example 9 is repeated except that the cylindrical screen further comprises a rotation shaft 6, said rotation shaft 6 being provided on the end caps at both ends of the cylinder 1. Wherein, a driving device 4 is arranged on a rotating shaft 6 at one end of the cylinder 1. The drive means 4 drive the rotation shaft 6 in rotation, thereby rotating the cylinder 1.

Example 11

Embodiment 10 is repeated except that the drive means 4 comprises a gear transmission 401 and an electric motor 402. A gear transmission system 401 is provided on the rotating shaft 6, and an electric motor 402 is connected to the gear transmission system 401. The motor 402 drives the gear transmission system 401 to rotate, and the gear transmission system 401 drives the rotating shaft 6 to rotate, thereby driving the cylinder 1 to rotate.

Example 12

Example 11 is repeated, except that the bottom of liquid bath 2 is provided with a discharge opening 201. An underflow pipe 7 is arranged at the discharge opening 201. An underflow valve 8 is arranged on the underflow pipe 7.

Example 13

Example 12 is repeated, except that the side wall of the liquid bath 2 is provided with an overflow 202. An overflow pipe 9 is arranged at the overflow port 202.

Example 14

Example 13 is repeated except that the cylindrical screen also includes a feed pipe 10. The feed end of the feed pipe 10 extends into the feed opening 101 of the cylinder 1.

Example 15

Example 14 was repeated except that the cylindrical screen also included a flushing device 11. Said flushing means 11 are arranged outside the upper half of the cylinder 1. The flushing device 11 is a flushing water pipe.

Claims

1. The utility model provides a drum sieve based on belt is arranged material which characterized in that: the cylinder screen comprises a cylinder (1), a liquid tank (2), a belt conveyor (3) and a driving device (4); the cylinder (1) is arranged horizontally, and the wall of the cylinder (1) is a screen with sieve pores; the liquid tank (2) is arranged below the cylinder (1); a belt conveyor (3) is arranged at the position of a central axis in the cylinder (1), and the belt conveyor (3) outwards penetrates through end covers at two ends of the cylinder (1); wherein, a driving device (4) is arranged on the end cover of the cylinder (1) at least one end; the driving device (4) drives the cylinder (1) to rotate around a central axis; the end cover of the feeding end of the cylinder (1) is provided with a feeding hole (101).

2. The cylindrical screen of claim 1, wherein: and the inner wall of the cylinder (1) is provided with a lifting plate (5).

3. The cylindrical screen of claim 2, wherein: the lifting plates (5) are distributed uniformly along the circumferential direction of the cylinder (1).

4. The cylindrical screen of claim 2, wherein: the lifting plate (5) is a sieve plate or a punching plate.

5. The cylindrical screen of claim 2, wherein: the lifting plates (5) are arranged radially offset from the cylinder (1) in the cross-section of the cylinder (1).

6. The cylindrical screen of claim 5, wherein: the lifting plate (5) and the cylinder (1) form an included angle alpha in the radial direction, wherein: the value range of alpha is 1-45 degrees.

7. The cylindrical screen of claim 6, wherein: the value range of alpha is 2-30 degrees.

8. The cylindrical screen of claim 6, wherein: the value range of alpha is 3-20 degrees.

9. The cylindrical screen of claim 1, wherein: the liquid level in the liquid tank (2) is higher than the lowest point of the inner wall of the cylinder (1) and lower than the setting height of the belt conveyor (3).

10. The cylindrical screen of claim 9, wherein: the liquid level in the liquid tank (2) is higher than 1/3 at the lower half height of the cylinder (1).

11. The cylindrical screen of claim 10, wherein: the liquid level in the liquid tank (2) is higher than 1/2 at the lower half height of the cylinder (1).

12. The cylindrical screen of claim 1, wherein: the cylindrical screen also comprises a rotating shaft (6), wherein the rotating shaft (6) is arranged on end covers at two ends of the cylinder (1); wherein, a driving device (4) is arranged on the rotating shaft (6) at least one end; the driving device (4) drives the rotating shaft (6) to rotate, so that the cylinder (1) is driven to rotate.

13. The cylindrical screen of claim 12, wherein: the drive device (4) comprises a gear transmission system (401) and a motor (402); the gear transmission system (401) is arranged on the rotating shaft (6), and the motor (402) is connected with the gear transmission system (401); the motor (402) drives the gear transmission system (401) to rotate, and the gear transmission system (401) drives the rotating shaft (6) to rotate, so that the cylinder (1) is driven to rotate.

14. The cylindrical screen of claim 1, wherein: a discharge outlet (201) is arranged at the bottom of the liquid tank (2); an underflow pipe (7) is arranged at the discharge opening (201).

15. The cylindrical screen of claim 14, wherein: an underflow valve (8) is arranged on the underflow pipe (7).

16. The cylindrical screen of claim 1, wherein: an overflow port (202) is arranged on the side wall of the liquid tank (2).

17. The cylindrical screen of claim 16, wherein: an overflow pipe (9) is arranged at the overflow port (202).

18. The cylindrical screen of claim 1, wherein: the cylindrical screen also comprises a feed pipe (10); the feeding end of the feeding pipe (10) extends into the feeding hole (101) of the cylinder (1).

19. The cylindrical screen of any one of claims 1-18, wherein: the cylindrical screen also comprises a flushing device (11); the flushing device (11) is arranged outside the upper half part of the cylinder (1).

20. The cylindrical screen of claim 19, wherein: the flushing device (11) is a flushing water pipe.