CN211937763U

CN211937763U - Multi-stage screening device for pellets

Info

Publication number: CN211937763U
Application number: CN202020188387.9U
Authority: CN
Inventors: 何威; 阳俊; 陈利娟; 曾维伟
Original assignee: Hunan Nonferrous Metals Vocational and Technical College
Current assignee: Hunan Nonferrous Metals Vocational and Technical College
Priority date: 2020-02-20
Filing date: 2020-02-20
Publication date: 2020-11-17
Anticipated expiration: 2030-02-20

Abstract

The utility model provides a multi-stage screening device is used to pelletizing, support and the pivot of slope support on the support about including controlling vertical setting, the inclosed cylinder of lower extreme is run through and is fixed by the pivot, be fixed with the filter screen section of thick bamboo that a plurality of diameters grow mesh in proper order and reduce in proper order from inside to outside in the cylinder, the inside wall of cylinder inside wall and every filter screen section of thick bamboo is fixed with helical blade by lower extreme to upper end respectively, the bottom upper end opening below of every filter screen section of thick bamboo is provided with the tile shape stock guide that from top to bottom inclines to set up respectively, and the tile shape stock guide from top to bottom lengthens in proper order, the lower extreme below of every tile shape stock guide, and the screening storage cylinder has been placed respectively to the bottom upper end opening below of cylinder, the top of higher support is fixed with the feeding box, the lower extreme of feeding box is. The utility model discloses make the screening of pelletizing more careful, improved screening efficiency moreover.

Description

Multi-stage screening device for pellets

Technical Field

The utility model relates to a mineral aggregate processing equipment, a multistage sieving mechanism is used to pelletizing specifically says so.

Background

Pellets (also called pellet ore) are a method for producing artificial block-shaped raw materials, and are a process for changing powdery materials into physical property and chemical composition which can meet the processing requirements of the next step. In the pelletizing process, the material is rolled into balls and the particles are dense, so that physical properties such as density, porosity, shape, size phase mechanical strength and the like of the material are changed, more importantly, chemical and physicochemical properties such as chemical composition, reducibility, expansibility, high-temperature reduction softening property, low-temperature reduction softening property, fusibility and the like are generated, and the metallurgical performance of the material is improved. The pelletizing is favorable to combining the difference of raw materials volume in the formation process, therefore the difference of size exists in the volume, consequently need sieve the pelletizing before using to the processing of pertinence, the equipment that separation material generally chooseed for use at present is the shale shaker, has many design products, regard electric power as power, the price is more expensive, need sieve the volume not very big, the material is more dispersed, not very suitable under the place restriction to some, and the screening ability is more single moreover, can not carry out multistage more meticulous screening.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model aims to provide a multi-stage screening device for pellets.

In order to achieve the above purpose, the technical scheme of the utility model is that: a multi-stage screening device for pellets comprises a left and a right vertically arranged supports and a rotating shaft obliquely supported on the left and the right supports, the lower end of the rotating shaft is in driving connection through a speed reducing motor, a roller with a sealed lower end is penetrated and fixed by the rotating shaft, a plurality of filter screen cylinders with sequentially enlarged and reduced meshes are sequentially fixed in the roller from inside to outside, helical blades from the lower end to the upper end are respectively fixed on the inner side wall of the roller and the inner side wall of each filter screen cylinder, tile-shaped guide plates obliquely arranged from top to bottom are respectively arranged below openings at the upper ends of the bottoms of the filter screen cylinders, the tile-shaped guide plates are sequentially lengthened from top to bottom, and the lower ends of the tile-shaped guide plates are arranged below the lower ends, and a screening storage barrel is respectively placed below the opening at the upper end of the bottom of the roller, a feeding box is fixed at the top of the higher support, and a discharging pipe which is tightly attached to the rotating shaft and extends to the lower end in the roller is arranged at the lower end of the feeding box.

Further, both ends of the rotating shaft are supported on the bracket through roller bearings.

Furthermore, a driving belt wheel driven by the speed reducing motor to rotate is in transmission connection with a driven belt wheel on the rotating shaft through a belt.

Furthermore, gear motor fixes on the motor cabinet of slope, and one side of motor cabinet passes through stiffener and support fixed connection.

Furthermore, the bottoms of the left and right brackets are fixedly connected through a bottom connecting rod.

Furthermore, conical fixed blocks are respectively fixed on the inner side and the outer side of the part of the rotating shaft, which penetrates through the lower end of the roller.

Furthermore, the upper end opening of the charging box is communicated with a funnel-shaped charging hopper.

Further, a pair of supporting rollers with the same inclination angle as the inclination angle of the roller is supported on the outer side wall of the lower surface of the roller.

When the pellets are screened, the speed reduction motor is started to drive the rotating shaft to rotate, so as to drive the rotary drum fixedly connected with the rotary drum and each filter screen cylinder to rotate, the pellet ore materials with various sizes are added from the feeding box, the pellet ore materials are conveyed into the filter screen cylinder with the largest pore diameter at the innermost part through the discharging pipe, the pellets with relatively smaller diameters fall to the next layer to be continuously screened under the rolling action of the filter screen cylinders, finally the smallest pellets fall to the side wall part of the bottom part of the rotary drum through each layer of filter screen cylinder, the pellets with gradually smaller diameters are screened through the filter screen cylinders sequentially reduced from inside to outside and are remained in the filter screen cylinders of the corresponding layer, so that the multi-stage screening of the pellets is realized, in addition, under the action of each spiral blade, the pellets screened between the filter screen cylinders of each layer and at the side wall part of the bottom part of the rotary drum are gradually conveyed to the opening at the top part, and then are respectively conveyed into each corresponding screening storage cylinder by each tile-, is convenient for subsequent processing and distinguishing use.

Through the above setting, pelletizing of various sizes is from entering into screening to between each filter screen section of thick bamboo, need just can discharge the good pelletizing of screening through helical blade propelling movement, the size kind that the screening of multilayer filter screen section of thick bamboo made the pelletizing more careful screening is more, more favourable processing use that does benefit to, in addition, the length of helical blade has almost been passed through during the pelletizing ejection of compact, consequently greatly increased the distance that the pelletizing was sent out, make full use of every layer of filter screen section of thick bamboo's mesh, in addition the blade promotes the in-process that the pelletizing went out, the pelletizing still can be because the filter screen section of thick bamboo of slope rolls downwards under self action of gravity, form better upset effect of turning, can effectively improve the classified screening to the pelletizing, and constantly rotate and still to be favorable to even cloth, improve screening efficiency.

Drawings

Fig. 1 is a schematic view of the structure of the present invention.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present embodiment is described in detail below with reference to the accompanying drawings:

this embodiment provides a multi-stage screening device for pellets, which is shown in FIG. 1 of the accompanying drawings.

As shown in figure 1, the multi-stage screening device for pellets comprises a left and a right vertically arranged supports 1 and a rotating shaft 2 obliquely supported on the left and the right supports 1, the lower end of the rotating shaft 2 is in driving connection with a speed reducing motor 3, a driving belt wheel 12 driven by the speed reducing motor 3 to rotate is in driving connection with a driven belt wheel 14 on the rotating shaft 2 through a belt 13, so that when the speed reducing motor 3 rotates, the rotating shaft 2 can be driven to rotate through the belt 13, a roller 4 with a closed lower end is penetrated and fixed by the rotating shaft 2, a plurality of filter screen cylinders 5 with gradually increased and gradually decreased diameters are sequentially fixed in the roller 4 from inside to outside, helical blades 6 from the lower end to the upper end are respectively fixed on the inner side wall of the roller 4 and the inner side wall of each filter screen cylinder 5, tile-shaped guide plates 7 obliquely arranged from top to bottom are respectively arranged below openings at the upper ends of the bottoms of the filter screen cylinders 5, screening storage barrels 8 are respectively placed below the lower end of each tile-shaped material guide plate 7 and the opening at the upper end of the bottom of the roller 4, a feeding box 9 is fixed at the top of the higher support 1, and a discharging pipe 10 tightly attached to the rotating shaft 2 and extending to the lower end of the roller 4 is arranged at the lower end of the feeding box 9.

The speed reduction motor 3 is started to drive the rotating shaft 2 to rotate, so as to drive the rotary drum 4 fixedly connected with the rotary drum and each filter screen cylinder 5 to rotate, pellet ore materials with various sizes are added from the feeding box 9, the pellet ore materials are conveyed into the filter screen cylinder 5 with the largest innermost pore diameter through the discharging pipe 10, the pellets with relatively smaller diameters fall to the next layer to be continuously screened under the rolling action of the filter screen cylinders 5, finally the smallest pellets fall to the bottom side wall of the rotary drum 4 through each layer of filter screen cylinder 5, the pellets with gradually smaller diameters are screened by the filter screen cylinders 5 with the sequentially reduced meshes from inside to outside and are remained in the corresponding layer of filter screen cylinder 5, so as to realize the multi-stage screening of the pellets, in addition, under the action of each spiral blade 6, the pellets screened between each layer of filter screen cylinder 5 and at the bottom side wall of the rotary drum 4 are gradually conveyed to the opening at the top part and then are respectively conveyed to each corresponding screening storage cylinder 8 by each guide tile-shaped plate 7 to be stored, is convenient for subsequent processing and distinguishing use.

In order to improve the stability of the rotation of the rotating shaft 2, both ends of the rotating shaft 2 are supported on the bracket 1 by roller bearings 11.

In order to improve the stability of the rotation of the gear motor 3, the gear motor 3 is fixed on an inclined motor base 15, one side of the motor base 15 is fixedly connected with the support 1 through a reinforcing rod 16, and the bottoms of the left support 1 and the right support 1 are fixedly connected through a bottom connecting rod 17.

In order to improve the firmness of fixing the rotary drum 4 and the rotary shaft 2, conical fixing blocks 18 are respectively fixed on the inner side and the outer side of the part, penetrating through the lower end of the rotary drum 4, of the rotary shaft 2, and the contact area of the rotary shaft 2 and the end part of the rotary drum 4 is increased by the conical fixing blocks 18.

In order to facilitate the addition of pellets of various sizes, the upper end opening of the feeding box 9 is communicated with a hopper 19 in the shape of a funnel.

For stably supporting the rotation of the drum 4, a pair of supporting rollers 20 having the same inclination angle as that of the drum 4 are supported on the outer side wall of the lower surface of the drum 4.

Of course, the above embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a multistage sieving mechanism is used to pelletizing which characterized in that: comprises a left bracket (1) and a right bracket (1) which are vertically arranged and a rotating shaft (2) which is obliquely supported on the left bracket and the right bracket (1), the lower end of the rotating shaft (2) is connected by a speed reducing motor (3) in a driving way, a lower-end closed roller (4) is penetrated and fixed by the rotating shaft (2), a plurality of filter screen cylinders (5) with diameters which are sequentially increased and meshes which are sequentially reduced are sequentially fixed in the roller (4) from inside to outside, helical blades (6) from the lower end to the upper end are respectively fixed on the inner side wall of the roller (4) and the inner side wall of each filter screen cylinder (5), tile-shaped guide plates (7) which are obliquely arranged from top to bottom are respectively arranged below openings at the upper end of the bottom of each filter screen cylinder (5), the tile-shaped guide plates (7) are sequentially increased in length from top to bottom, the lower end of each tile-shaped guide plate (7) is arranged below openings at the, the top of the higher bracket (1) is fixed with a feeding box (9), and the lower end of the feeding box (9) is provided with a discharging pipe (10) which is tightly attached to the rotating shaft (2) and extends to the inner lower end of the roller (4).

2. The multi-stage screening apparatus for pellets according to claim 1, wherein: two ends of the rotating shaft (2) are supported on the bracket (1) through roller bearings (11).

3. The multi-stage screening apparatus for pellets according to claim 1, wherein: a driving belt wheel (12) driven by the speed reducing motor (3) to rotate is in transmission connection with a driven belt wheel (14) on the rotating shaft (2) through a belt (13).

4. The multi-stage screening apparatus for pellets according to claim 1, wherein: the speed reducing motor (3) is fixed on the inclined motor base (15), and one side of the motor base (15) is fixedly connected with the support (1) through the reinforcing rod (16).

5. The multi-stage screening apparatus for pellets according to claim 1, wherein: the bottoms of the left and right brackets (1) are fixedly connected through a bottom connecting rod (17).

6. The multi-stage screening apparatus for pellets according to claim 1, wherein: conical fixed blocks (18) are respectively fixed on the inner side and the outer side of the part of the rotating shaft (2) penetrating through the lower end of the roller (4).

7. The multi-stage screening apparatus for pellets according to claim 1, wherein: the upper end opening of the feeding box (9) is communicated with a funnel-shaped feeding hopper (19).

8. The multi-stage screening apparatus for pellets according to claim 1, wherein: the outer side wall of the lower surface of the roller (4) is supported with a pair of supporting rollers (20) with the same inclination angle as that of the roller (4).