阅读说明：本技术 一种滚筒式多级筛分设备 (Drum-type multistage screening equipment ) 是由 杨彦军 樊朋朋 刘慧勇 高珊 曲建伟 何亚乾 马晨昊 李建鹏 于 2021-06-01 设计创作，主要内容包括：一种滚筒式多级筛分设备包括底架、进料斗、筛筒部分、驱动部分和落料部分；所述底架包括进料斗支架、电机支架、落料槽支架、落料斗支架、筛筒支架；所述筛筒部分包括筛筒外层、上固定圈、第一筛筒、下固定圈、第二筛筒、第三筛筒和筛筒内固定架；所述驱动部分包括电机、驱动齿轮、电机支架、驱动齿圈、滚轮、滚轮支架；所述落料部分包括落料槽、落料槽支架、落料斗支架、落料斗；本发明采用电机驱动筛筒旋转的方式对物料进行分离操作,由于筛筒内部设有不同目数的筛筒,一次投料即可同时分离出不同粒径的物料；在生产过程中,大大提高了生产效率。(A roller type multi-stage screening device comprises a bottom frame, a feed hopper, a screen cylinder part, a driving part and a blanking part; the bottom frame comprises a feed hopper support, a motor support, a charging chute support, a charging hopper support and a screen drum support; the screen drum part comprises a screen drum outer layer, an upper fixing ring, a first screen drum, a lower fixing ring, a second screen drum, a third screen drum and a screen drum inner fixing frame; the driving part comprises a motor, a driving gear, a motor bracket, a driving gear ring, a roller and a roller bracket; the blanking part comprises a blanking groove, a blanking groove support, a blanking hopper support and a blanking hopper; the invention adopts the mode that the motor drives the screen drum to rotate to separate the materials, and because the screen drums with different meshes are arranged in the screen drum, the materials with different grain diameters can be separated out at the same time by feeding once; in the production process, the production efficiency is greatly improved.)

1. The utility model provides a multistage screening equipment of drum-type which characterized in that: the drum type multi-stage screening equipment comprises a bottom frame (1), a feed hopper (3), a screening drum part, a driving part and a blanking part; the bottom frame comprises a feed hopper support (2), a motor support (9), a charging chute support (15), a charging hopper support (16) and a screen drum support (19); the feeding hopper is fixed by a feeding hopper bracket, and the lower end part of the feeding hopper extends into the upper end of the screen cylinder part; the screen drum part is fixed on the bottom frame in a rolling way; the blanking part is fixed on the bottom frame; the screen drum part comprises a screen drum outer layer (4), an upper fixing ring (5), a first screen drum (6), a lower fixing ring (10), a second screen drum (11), a third screen drum (12) and a screen drum inner fixing frame (13); the outer layer of the screen cylinder is fixed with the upper fixing ring and the lower fixing ring; flanges are arranged at the upper ends of the outer layer of the screen cylinder, the first screen cylinder, the second screen cylinder and the third screen cylinder, and corresponding through holes are formed in the flanges; the screen drum inner fixing frame is respectively fixed with the screen drum outer layer, the first screen drum, the second screen drum and the third screen drum; the driving part comprises a motor (8), a driving gear (7), a motor bracket (9), a driving gear ring (20), a roller (21) and a roller bracket (22); the motor is fixed on the motor bracket; the driving gear ring is fixed with the outer layer of the screen drum; the driving gear is meshed with the driving gear ring; the roller is fixed on the screen drum bracket (19) through a roller bracket; the upper and lower rollers are respectively contacted with the upper fixing ring and the lower fixing ring; the blanking part comprises a blanking groove (14), a blanking groove support (15), a blanking hopper support (16) and a blanking hopper (17); the charging chute is fixed on the charging chute support; the charging chute support is fixed on the underframe; the blanking hopper is fixed on the blanking hopper bracket; the blanking hopper bracket is fixed on the underframe.

2. A roller type multi-stage screening apparatus as claimed in claim 1, wherein: the drum-type multi-stage screening equipment is also additionally provided with a conveying belt (18).

3. A roller type multi-stage screening apparatus as claimed in claim 2, wherein: the upper edge of the charging chute (14) is provided with a material blocking strip (23); the material blocking strip is a rubber strip or a steel wire bundle.

4. A roller type multi-stage screening apparatus as claimed in claim 3, wherein: the number of the inner screen cylinders of the roller part is more than 1.

5. A roller type multi-stage screening apparatus as claimed in claim 4, wherein: the inclination angle of the roller part is 140 degrees and 160 degrees.

6. A roller type multi-stage screening apparatus as claimed in claim 5, wherein: the surface of the roller (21) is groove-shaped.

7. A roller type multi-stage screening apparatus as claimed in claim 6, wherein: the teeth of the driving gear (7) and the teeth of the driving gear ring (20) are helical teeth.

Technical Field

The invention relates to screening equipment, in particular to drum-type multistage screening equipment, and belongs to the technical field of concrete equipment.

Background

The concrete is also called cement, is a common building material, is used in the field of building in a large number, uses cement as a gel material, uses sand and stone as aggregates, is matched with water according to a certain proportion, and is formed by stirring, forming and curing; different projects or different concrete use parts have different requirements on the strength grade of the concrete; according to the national standard, when producing concrete, the sand and stone materials are required to be screened to obtain the sand and stone materials with different grain diameters, and then the concrete meeting the strength standard is produced; the grit material screening equipment of current grit material only can sieve out the grit material of a particle size, can not sieve out the grit material of multiple particle size simultaneously, in process of production, when using the grit material of different particle sizes, can only carry out screening many times, wastes time and energy, therefore the industry needs a production facility that can sieve out multiple particle size grit material simultaneously urgently.

Disclosure of Invention

The invention aims to provide a drum-type multistage screening device which can be used for screening sand and stone materials with different particle sizes simultaneously, reduces screening times and greatly improves production efficiency.

In order to achieve the purpose, the invention adopts the following technical scheme:

a roller type multi-stage screening device comprises a bottom frame, a feed hopper, a screen cylinder part, a driving part and a blanking part; the bottom frame comprises a feed hopper support, a motor support, a charging chute support, a charging hopper support and a screen drum support; the feeding hopper is fixed by a feeding hopper bracket, and the lower end part of the feeding hopper extends into the upper end of the screen cylinder part; the screen drum part is fixed on the bottom frame in a rolling way; the blanking part is fixed on the bottom frame; the screen drum part comprises a screen drum outer layer, an upper fixing ring, a first screen drum, a lower fixing ring, a second screen drum, a third screen drum and a screen drum inner fixing frame; the outer layer of the screen cylinder is fixed with the upper fixing ring and the lower fixing ring; flanges are arranged at the upper ends of the outer layer of the screen cylinder, the first screen cylinder, the second screen cylinder and the third screen cylinder, and corresponding through holes are formed in the flanges; the screen drum inner fixing frame is respectively fixed with the screen drum outer layer, the first screen drum, the second screen drum and the third screen drum; the driving part comprises a motor, a driving gear, a motor bracket, a driving gear ring, a roller and a roller bracket; the motor is fixed on the motor bracket; the driving gear ring is fixed with the outer layer of the screen drum; the driving gear is meshed with the driving gear ring; the roller is fixed on the screen drum bracket through the roller bracket; the upper and lower rollers are respectively contacted with the upper fixing ring and the lower fixing ring; the blanking part comprises a blanking groove, a blanking groove support, a blanking hopper support and a blanking hopper; the charging chute is fixed on the charging chute support; the charging chute support is fixed on the underframe; the blanking hopper is fixed on the blanking hopper bracket; the blanking hopper bracket is fixed on the underframe.

The drum-type multistage screening equipment is additionally provided with the conveying belt.

In the drum-type multi-stage screening device, the upper edge of the charging chute is provided with a material blocking strip); the material blocking strip is a rubber strip or a steel wire bundle.

In the drum-type multistage screening device, the number of the inner screen drums of the drum part is more than 1.

Above-mentioned multistage screening equipment of drum-type, its characterized in that: the inclination angle of the roller part is 140 degrees and 160 degrees.

Above-mentioned ground roller formula multistage screening equipment, the gyro wheel surface is the flute profile.

In the drum-type multistage screening device, the teeth of the driving gear and the driving gear ring are helical teeth.

Advantageous effects

The invention has the following advantages:

the invention adopts the mode that the motor drives the screen drum to rotate to separate the materials, and because the screen drums with different meshes are arranged in the screen drum, the materials with different grain diameters can be separated out at the same time by feeding once; in the production process, the screening time is greatly shortened, and the production efficiency is further improved.

Drawings

FIG. 1 is a schematic diagram of a drum-type multi-stage screening apparatus;

FIG. 2 is an oblique cross-sectional view of the drum portion of the drum-type multi-stage screening apparatus looking down to the right;

fig. 3 is a schematic view of the charging chute.

In the drawings, the reference numerals denote: 1. chassis, 2, feeder hopper support, 3, feeder hopper, 4, a sieve section of thick bamboo is outer, 5, go up the retainer plate, 6, a first sieve section of thick bamboo, 7, drive gear, 8, the motor, 9, motor support, 10, lower retainer plate, 11, a second sieve section of thick bamboo, 12, a third sieve section of thick bamboo, 13, a sieve section of thick bamboo internal fixation frame, 14, the blanking groove, 15, the blanking groove support, 16, the blanking hopper support, 17, the blanking hopper, 18, the conveyer belt, 19, a sieve section of thick bamboo support, 20, the drive ring gear, 21, the gyro wheel, 22, the gyro wheel support, 23, the dam bar.

Detailed Description

The invention is further illustrated by the following figures and examples.

The invention relates to a drum-type multi-stage screening device which is provided with a bottom frame 1, a feed hopper 3, a screen drum part, a driving part and a blanking part; the underframe is provided with a feed hopper bracket 2, a motor bracket 9, a charging chute bracket 15, a charging hopper bracket 16 and a screen drum bracket 19; the feed hopper is fixed on the feed hopper bracket, and the lower end part of the feed hopper extends into the upper end of the screen cylinder part; the screen drum part comprises a screen drum outer layer 4, an upper fixing ring 5, a first screen drum 6, a lower fixing ring 10, a second screen drum 11, a third screen drum 12 and a screen drum inner fixing frame 13; flanges are arranged at the upper ends of the outer layer of the screen cylinder, the first screen cylinder, the second screen cylinder and the third screen cylinder, and corresponding through holes are formed in the flanges; the outer layer of the screen cylinder, the first screen cylinder, the second screen cylinder and the third screen cylinder are sequentially sleeved together, and the fastening bolt penetrates through the through hole in the flange and then is fastened; the upper fixing ring and the lower fixing ring are respectively fixed on the middle upper part and the middle lower part of the outer layer of the screen drum; the screen drum inner fixing frame is respectively fixed with the screen drum outer layer, the first screen drum, the second screen drum and the third screen drum; the driving part comprises a motor 8, a driving gear 7, a motor bracket 9, a driving gear ring 20, a roller 21 and a roller bracket 22; the motor is fixed on the motor bracket; the driving gear ring is fixed with the outer layer of the screen drum; the driving gear is meshed with the driving gear ring; the roller 21 is fixed on the roller bracket 22; the roller bracket is fixed on the screen drum bracket 19; the upper fixing ring and the lower fixing ring are respectively embedded into the grooves of the upper roller and the lower roller; the blanking part comprises a blanking groove 14, a blanking groove support 15, a blanking hopper support 16 and a blanking hopper 17; the charging chute is fixed on the charging chute support; the charging chute support is fixed on the underframe; the blanking hopper is fixed on the blanking hopper bracket; the blanking hopper bracket is fixed on the underframe.

The drum-type multistage screening equipment is additionally provided with a conveyer belt 18.

According to the drum-type multi-stage screening equipment, the charging chute 14 is composed of a plurality of layers of chutes corresponding to the screen drum, the upper edge of each chute is provided with a material blocking strip 23, each material blocking strip is a rubber strip or a steel wire bundle, and the cross section of each chute is in an arc shape.

According to the roller type multi-stage screening equipment, the number of the inner screen cylinders of the roller part is more than 1.

In the drum-type multistage screening equipment, in order to reduce the gliding force of the whole equipment, the surface of the roller 21 is designed to be groove-shaped; the teeth of the drive gear 7 and the drive ring gear 20 are designed as helical teeth.