KR100804987B1 - A rotary-type circular screen apparatus - Google Patents

Abstract

The present invention relates to a rotatable circular screen device for smoothly separating raw materials having different sizes by using rotary circular screens and using all parts of the screen to prevent a certain portion from being severely worn.

The present invention is inclined fixedly disposed between the circular supports (26a, 26b) seated on the central axes of the sheaves rotatably supported on the base frame (57), the cylindrical arrangement arranged in connection with the outlet of the upper chute (24) Screen net 21; The sheaves 38a and 38c including driven chain gears 32a and 32b integrally coupled with the central axes 39a and 39c of one side of the sheaves 38a and 38c, respectively. Chain driving unit 30 for rotating the; A first lower chute 25 disposed at an exit side of the screen net 21 and a second lower chute 28 disposed directly below the screen net 21, and provided at the chain drive unit 30; Rotates the screen net 21 by rotating the sheaves by being configured to smoothly separate the incoming raw materials by size and discharged to the lower chute (25, 28), and is disposed inside the screen net 21 It provides a rotary circular screen device for smoothly guiding the raw materials in the screen net 21 by including a screw 27 rotatably installed on the base frame 57, respectively.

Screen net, rotary, conveyor belt, chute, chain drive

Description

Rotary Circular Screen Device {A ROTARY-TYPE CIRCULAR SCREEN APPARATUS}

1 is a perspective view of a conventional screen device;

2 is a perspective view of a conventional screen device for separating raw materials;

3 is a side cross-sectional view of FIG. 2;

4 is a perspective view of a rotary circular screen device according to the present invention;

5 is an exploded perspective view of a rotary circular screen device according to the present invention;

6 is a front view of a rotary circular screen device according to the present invention; And

Figure 7 is an enlarged perspective view of another embodiment for transmitting the rotational force of the sheave of the rotary circular screen device according to the present invention; And

8 is an operation of the rotary circular screen device according to the present invention.

Explanation of symbols on the main parts of the drawings

 5 ... large ore 6 ... small ore

 9 ... raw ore 10 ... conventional screen device

11 ... screen 12 ... raw material supply belt

14 ... motor 17 ... screen

21 ... round screen net 24 ... top chute

25 ... first lower chute 26a, b ... circular support                 

27 ... screw 28 ... lower chute

31a, b ... driven chain gear 32a, b ... driven chain gear

33a, b ... second chain gear 34a, b ... first chain gear

35a, b ... motor 36a, b ... first chain

37a, b ... second chain 38a, b, c, d ...

42 ... 1st conveyor belt 43 ... 2nd conveyor belt

51a, b ... support 52a, b, c, d ... support

100 ... rotary circular screen device according to the present invention

The present invention relates to a screen device of a facility for separating raw materials, and more particularly, by using a rotary circular screen, raw materials having different sizes can be smoothly separated by sizes and all parts of the screen are used. It relates to a rotary circular screen device to prevent abrasion.

FIG. 1 shows a conventional screen device 10, FIG. 2 shows separating raw materials using the screen device 10 of FIG. 1, and FIG. 3 is a side cross-sectional view of FIG. 2.

1 to 3, in general, the crushing equipment of the raw material processing equipment is a facility for crushing the raw material ore to the appropriate size that can be used in the blast furnace sintering plant, the grinding, heavy chain, crushing work. Grinding is to break large ore into size of about 250mm, heavy chain to break ore of size of about 250mm into size of 8-30mm, and crushing is to break up ore into size of less than 8mm.

In this process, the screen 11 separating the ore particle size vibrates with the motor 14, and thus the raw materials supplied from the raw material supply belt 12 and passing through the screen net 11 are screen net according to their size. It is divided into ore falling through (17) and ore which is not, and the criterion depends on the eye size of the screen net (17).

Looking at the vibration principle of the screen 11, when the motor 14 is initially driven, the shaft 15 attached to the screen 11 while the cam 15 connected through the power transmission belt 18 and the shaft 15a is rotated ( 15a) vibrates the main body of the screen 11 by vibrating due to the eccentricity of the cam 15.

As described above, the spring 16 supporting the main body is installed on the side of the conventional screen device 10 to absorb the shock generated during the vibration, so that the smooth vibration is achieved.

However, in the conventional screen device 10, when the raw material ore 9 flows into the screen 11, a phenomenon occurs in which it is concentrated at the center and accumulated on the screen net 17, thereby causing the screen net 17 to be lost. Ore is generated and the separation function of the screen net 17 is reduced, the center of the screen net 17 is easily uniaxially worn and a hole is formed, the ore (5) having a high particle size is small ore (6) And the phenomenon occurs that the raw material quality is reduced.

In addition, the screen device 10 is a vibration is inevitably generated to generate a large noise, thereby causing a high risk of safety accidents such as hearing impairment of the operator.                         

In addition, to replace the screen net 17 due to uneven wear of the screen net 17, the work must be paused for a certain time, thereby reducing productivity, the phenomenon of overflowing ore in the center of the screen net 17 Due to the frequent occurrence of raw ore 9 scattered around, the working environment is deteriorated and environmental pollution occurs.

The present invention is to solve the conventional problems as described above, using the entire portion of the screen to separate the ore to prevent uneven wear and even if used for a long time does not cause a defect in the screen is smoothly performed ore separation, Accordingly, an object of the present invention is to provide a rotary circular screen device in which scattering of ore is prevented.

The present invention, in order to achieve the above object, in the apparatus for separating the raw material provided from the upper chute by size, in the apparatus for separating the raw material provided by the upper chute by size, the central axis of the sheaves rotatably supported on the base frame A cylindrical screen net disposed obliquely between circular supports seated on the field and connected to the outlet of the upper chute; A chain driving part configured to rotate the sheaves, including driven chain gears integrally coupled to central axes of one of the sheaves; A first lower chute disposed at an outlet side of the screen net and a second lower chute disposed directly below the screen net;
Rotating the screen net by the rotation of the chain drive unit is configured to smoothly separate the introduced raw materials by size to discharge to the lower chute,
It is to provide a rotary circular screen device for smoothly guiding the raw material in the screen net including a screw disposed inside the screen net and rotatably installed in the base frame respectively.

Hereinafter, the configuration of the rotary circular screen device 100 (hereinafter referred to as the rotary screen device 100) according to the present invention will be described in more detail with reference to the drawings.

4 is a perspective view of a rotary screen device 100 according to the present invention, FIG. 5 is an exploded view of the rotary screen device 100, and FIG. 6 is a front view of the rotary screen device 100. do.

4 to 6, the rotary screen device 100 according to the present invention includes a cylindrical screen net 21 arranged to rotate, a chain driving unit 30 for rotating the screen net 21, and the screen net. And bottom chutes 25 and 28 for collecting raw materials separated in size from 21.

First, the screen net 21 is rotated through the rotation shafts 39a, 39b, 39c and 39d on the supports 52a, 52b, 52c and 52d fixed to the base frame 57. It is fixedly inclined between the circular supports 26a, 26b seated between the joined sheaves 38a, 38b, 38c, 38d. A plurality of frames 22 are coupled between the circular supports 26a and 26b to connect both supports 26a and 26b to the inside along the inner surface of the screen net 21. It is cylindrical in shape. The screen net 21 is connected to and fixed by bolt and nut members to the circular supports 26a and 26b and is supported by the frames 22 to maintain a cylindrical shape.

The supports 52a and 52b and the other supports 52c and 52d are mounted at different heights on the base frame 57 as shown in FIG. 4 and each of the supports 52a is provided. Each of the sheaves 38a, 38b, 38c, 38d is paired with each of the rotary shafts 39a, 39b, 39c, 39d, respectively. It is rotated and supported. The sheaves 38a, 38b, 38c and 38d are each paired from each other by the thickness of the circular supports 26a and 26b so that the supports 52a, 52b, 52c and 52d are separated. The circular supports 26a and 26b are inserted into and disposed on and spaced apart from each other and are supported on the rotary shafts 39a, 39b, 39c and 39d.

The sheaves 38a, 38b, 38c and 38d are integrally coupled with the rotary shafts 39a, 39b, 39c and 39d to rotate. When the sheaves of one side of the sheaves 38a, 38b, 38c, 38d are rotated, for example, when the sheaves 38a, 38c are rotated, the shafts 39a, 39c and The abutting circular supports 26a, 26b are rotated by friction and rotational force, and the screen net 21 is rotated accordingly.

Figure 7 shows another embodiment for transmitting the rotational force of the sheaves of the rotary screen device 100 according to the present invention. Referring to FIG. 7, circular gears 46a and 46b are mounted on the side surfaces of the circular supports 26a and 26b, respectively, and gears 45a and 45b meshing with the sheaves 38a and 38c are provided. Respectively mounted on the circumferential surface of the sheaths 38a and 38c, the circular supports 26a according to the engagement rotation of the gears 45a and 45b and the circular gears 46a and 46b. ) 26b is rotated more reliably.

As the supports 52a and 52b and the other supports 52c and 52d are mounted at different heights of the base frame 57, the screen net 21 is the circular supports 26a and 26b. ) Is disposed on the inclined.

The screen net 21 is arranged such that the opening toward the upper side is connected to the outlet of the upper chute 24 for supplying the raw material. Therefore, the raw material from the upper chute 24 is supplied to the screen net 21 without being scattered around.

The chain drive part 30 for rotating the screen net 21 is driven chain gear 32a which is integrally coupled to the central axes 39a and 39c of one of the sheaves 38a and 38c. 32b).

The driven chain gears 32a and 32b are respectively wound around the first chains 36a and 36b and the first chains 36a and 36b are respectively driven from the driven chain gears 32a and 32b. Chained with spaced apart drive chain gears 31a and 31b, the central axes 47a and 47b of the drive chain gears 31a and 31b are connected to motors 35a and 35b, respectively. do. The motors 35a and 35b are selected to have the same specifications.

Therefore, when the motors 35a and 35b are driven, the drive chain gears 31a and 31b are rotated, respectively, followed by driven chain gears 32a connected to the first chains 36a and 36b. ) 32b are rotated, respectively, and the sheaves 38a and 38c integrally coupled with the rotational shafts 39a and 39c of the driven chain gears 32a and 32b, respectively. When the sheaves 38a, 38c are rotated, for example counterclockwise, between the axes 39a, 39b, 39c between the sheaves 38a, 38b, 38c, 38d. The circular supports 26a and 26b disposed to be supported by the blade 39d are rotated in the clockwise direction, and the screen net 21 is rotated in the clockwise direction.

Supports 51a and 51b fixed to the base frame 57 are disposed in front of both outlets of the screen net 21, and a screw 27 is rotatable between the supports 51a and 51b. Is installed. The screw 27 is installed to be slightly spaced apart from the lower side of the screen net 21 so as not to contact the screen net 21 when rotating.

The screw 27 rotates the raw material 9 introduced while being rotated at all times so that the rotating raw material 9 leaves the raw material sandwiched in the screen net 21 so that the screen net 21 is applied to the raw material. To prevent clogging. If the screen net 21 is jammed by the raw material 9, the small raw material 6 is not separated into the lower through the screen net 21, so it is mixed with the large raw material 5, the lower chute ( 25) to be discharged to the screen net 21 does not perform its original function.

In addition, the screw 27 also acts as a buffer to prevent the raw material (9) flowing from the upper chute 24 to impact the screen net (21).

The central axis 27a of the screw 27 is integrally coupled to the first chain gears 34a and 34b disposed on the side surfaces of the supports 51a and 51b, respectively, and the first chain gears 34a are integrated. 34b are wound around the second chains 37a and 37b, respectively, and the second chains 37a and 37b are respectively the side surfaces of the driven chain gears 32a and 32b. The chains are coupled to the second chain gears 33a and 33b integrally coupled with the fields 39a and 39c, respectively.

Therefore, when the driven chain gears 32a and 32b are rotated, for example, counterclockwise, the second chain gears 33a and 33b and the first chain gears 34a and 34b are rotated. ) Is also rotated counterclockwise and thus the screw 27 is rotated counterclockwise.

Therefore, when the motors 35a and 35b are respectively driven, the screen net 21 and the screw 27 are rotated in opposite directions.

A first lower chute 25 is disposed at an exit side of the screen net 21 which is inclined downward, and a second lower chute 28 is disposed directly below the screen net 21. The first lower chute 25 collects a raw material having a larger size than the eye of the screen net 21, and the second lower chute 28 collects a raw material having a size smaller than the eye of the screen net 21. Collect.

A first conveyor belt 42 for transporting raw materials discharged therefrom is provided at an outlet side formed below the first lower chute 25, and an outlet side formed below the second lower chute 28 is provided therefrom. The second conveyor belt 43 for transporting the discharged raw material is installed.

Hereinafter, the operation of the rotary screen device 100 according to the present invention.

8 shows a state in which the rotary screen device 100 according to the present invention separates the raw materials.

Referring to FIG. 8, when the raw ore 9 is supplied from the raw material supply belt 12, the raw ore 9 is transferred into the screen net 21 through the upper chute 24. At this time, the operator drives the motors 35a and 35b simultaneously. The drive chain gears 31a and 31b are rotated counterclockwise by the driving of the motors 35a and 35b and the driven chain gears through the first chains 36a and 36b. 32a and 32b are rotated counterclockwise, respectively, so that the sheaves 38a and 38c are also rotated counterclockwise. When the sheaves 38a and 38c are rotated counterclockwise, the circular supports 26a and 26b seated on the rotary shafts 39a and 39c of the sheaves 38a and 38c are subjected to frictional force. It is rotated clockwise by the rotational force, and eventually the screen net 21 is rotated clockwise.

Counterclockwise rotation of the driven chain gears 32a and 32b is achieved by the second chain gears 33a and 33b, the second chains 37a and 37b and the first chain gears 34a. 34b is followed by a clockwise rotation of the screw 27. Therefore, when the motors 35a and 35b are driven, the screen net 21 and the screw 27 are rotated in opposite directions.

When the inclined screen net 21 is rotated, the raw ore 9 introduced into the screen net 21 is moved downward by gravity, and the screw 27 is rotated to smoothly rotate the raw ore 9. Guide it downward. In addition, the screw 27 rotates the incoming raw material 9 all the time so that the raw material 9 being rotated is separated from the screen net 21 by the raw material sandwiched in the screen net 21. ) Is not always blocked, and also buffers the raw material (9) flowing rapidly from the upper chute (24) does not impact the screen net (21).

 As the raw material ore 9 is moved downward, the raw materials 6 smaller than the eye of the screen net 21 are collected downward to the second lower chute 28 through the screen net 21 and continue. Moved to the lower side is discharged over the second conveyor belt (43). The second conveyor belt 43 moves the raw materials 6 to a reservoir for storing only small raw materials.

The raw materials 5 of the raw material ore 9 larger than the eye of the screen net 21 are continuously moved to the lower side and collected into the first lower chute 25, and are continuously moved to the lower side to the first conveyor. It is dispensed over the belt 42. The first conveyor belt 42 moves the raw materials 5 to a reservoir that stores only raw materials of large size.

Since the screen net 21 is always rotated during the separation of the raw ore 9, a phenomenon in which only a part is used is prevented as in the prior art, and thus the wear life is extended as a whole, thereby exhibiting a uniform degree of wear.

The screw 27 is also always rotated while separating the raw ore (9) to smoothly move the incoming raw ore (9) to the lower side, so that the raw material is accumulated in the screen net as in the prior art, the size of the eye of the screen net is increased or Blockage of the eyes prevents the inefficiency of raw material separation.

According to the rotary circular screen device according to the present invention as described above, by using the rotary screen net, by using the screen net as a whole during the separation operation, partial wear of the screen net is prevented, and the use of screws to overload the input material The accumulation is prevented to improve the efficiency of separation work, and the life of the device is extended to reduce the maintenance time or equipment replacement time, thereby improving the productivity has a useful effect.

In addition, the rotary circular screen device according to the present invention has a useful effect of preventing the accumulation of raw ore in the screen net to prevent scattering of raw materials, thereby clean the working environment and prevent environmental pollution.

While the invention has been shown and described with respect to specific embodiments thereof, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit or scope of the invention as set forth in the following claims. I would like to know that those who have knowledge of Easily know.

Claims (5)

In the device for separating the raw material provided from the upper chute by size, Circular supports 26a mounted on the central axes 39a, 39b, 39c and 39d of the sheaves 38a, 38b, 38c and 38d that are rotatably supported by the base frame 57 ( A cylindrical screen net 21 fixedly disposed obliquely between the ends of the upper chute 24 and the central axes 39a of one of the sheaves 38a and 38c. A chain driving part 30 for rotating the sheaves 38a and 38c, including driven chain gears 32a and 32b, each integrally coupled to 39c; And a first lower chute 25 disposed at an outlet side of the screen net 21 and a second lower chute 28 disposed directly below the screen net 21. By rotating the screen nets 21 by the rotation of the sheaves 38a and 38c by the chain driving unit 30, raw materials introduced by the chain driving unit 30 are separated by size and discharged to the lower chutes 25 and 28. Is configured to Rotating circular screen, characterized in that it comprises a screw 27 disposed inside the screen net 21 and rotatably installed on the base frame 57 to smoothly guide the raw materials in the screen net 21 to the lower side. Device. The method of claim 1, The chain drive unit 30 includes drive chain gears 31a and 31b that are coupled to the first chains 36a and 36b wound around the driven chain gears 32a and 32b, respectively, and the drive chain. Rotary circular screen device characterized in that it comprises a motor (35a, 35b) coupled with the central axes (47a) (47b) of the gears (31a) (31b), respectively. delete The method of claim 1, The central axis 27a of the screw 27 is integrally coupled to the first chain gears 34a and 34b on the side of the supports 51a and 51b of the base frame 57, respectively, and the first chain The gears 34a and 34b are respectively wound on the second chains 37a and 37b, and the second chains 37a and 37b are respectively the side surfaces of the driven chain gears 32a and 32b. By chain coupling with the second chain gears (32a, 32b), each integrally coupled to the central axes (39a), (39c) in the drive of the motors (35a, 35b) of the chain drive section 30 Rotary screw screen, characterized in that to rotate the screw 27 to guide the raw material more smoothly to the lower side. The method of claim 1, On the outlet side of the first lower chute 25 is provided a first conveyor belt 42 for transporting large raw materials 5 discharged therefrom, and on the outlet side of the second lower chute 28 therefrom. Rotary circular screen device, characterized in that the second conveyor belt (43) for transporting the small raw materials (6) discharged is installed.

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