CN-224207948-U - Cold bonding agent sieving granulator

Abstract

The utility model belongs to the field of rolling granulator, and discloses a cold-bonding screenable granulator, which is provided with a feed inlet, an extrusion structure, a screening structure and a collecting structure which are sequentially connected from top to bottom, so that aggregate granulation and screening integration is realized. The extrusion structure adopts a polygonal prismatic roller, and is provided with a plurality of grooves with different gradations and irregular shapes, so that aggregate particles with different gradations can be formed in the extrusion process, and the screening structure ensures that the aggregate particles with different sizes can be effectively separated by arranging a plurality of layers of circular hole sieves with different gradations, and the sizes of through holes are gradually reduced from top to bottom. The granulator not only solves the problem that the traditional granulator can only produce aggregates with the same grading, but also can directly produce aggregates meeting the grading requirements of concrete preparation at all levels, thereby remarkably improving the production efficiency and the concrete compactness and further meeting the requirements of preparing high-quality concrete.

Inventors

• CHENG LIANG
• WANG LEI
• XIONG GUANGHONG
• ZHANG XINQI
• Hao Renzhuo
• WANG JIA
• Dang Fengjiao
• ZHANG CHENGHUA
• QIN QING
• REN XIANG
• GAO ZHIGANG
• SHANG CHUNLIN
• ZHANG HUA
• TANG LIYUN

Assignees

• 陕西省现代建筑设计研究院有限公司
• 西安科技大学
• 陕西西科华研建设工程有限公司
• 中煤西安设计工程有限责任公司

Dates

Publication Date

20260508

Application Date

20250408

Claims (10)

1. 1. A cold-bond screenable granulator comprising a granulation section; The granulating part comprises a feed inlet (22), an extrusion structure, a screening structure and a collecting structure which are sequentially connected from top to bottom; The extrusion structure comprises at least one group of two symmetrically arranged rollers (5), and an extrusion space is formed between the two rollers (5); The roller (5) adopts polygonal prisms, and a plurality of grooves (13) with different gradations and irregular shapes are formed in the roller (5); The screening structure comprises a plurality of layers of round hole screens (7) with different gradations, wherein the sizes of through holes (16) from the uppermost layer to the lowermost layer of round hole screens (7) are gradually reduced; the round hole sieve (7) is arranged below the roller (5), and the output end of the round hole sieve is connected with the collecting structure.
2. 2. Cold-bonding screenable granulator according to claim 1, characterized in that a heating spiral track (6) is provided between the extrusion structure and the screening structure, the heating spiral track (6) being used for heating solidified aggregate and spreading out aggregates of different particle sizes.
3. 3. Cold-bonding screenable granulator according to claim 1, characterized in that one end of the circular screen (7) is provided with a rotating structure (17), the rotating structure (17) comprises a rotating body (18) and a rotating rod (19), one end of the circular screen (7) is lapped on the rotating rod (19), the rotating body (18) is screwed to drive the circular screen (7) to move from a horizontal state to an inclined state by the rotating rod (19), and when the circular screen (7) moves to an inclined state, aggregates slide from the circular screen (7) to the collecting structure.
4. 4. The cold-bonding screenable granulator according to claim 1, wherein the roller (5) comprises an inner cylinder (12) and an outer cylinder (11) sleeved outside the inner cylinder (12), the groove (13) is formed in the outer surface of the outer cylinder (11), the inner cylinder (12) is adaptively connected with a saw-tooth structure of the outer cylinder (11) through a fastening structure (15), and two ends of the inner cylinder (12) are rotatably arranged on the extrusion structure body.
5. 5. The cold-bond screenable granulator according to claim 1, further comprising a ready-mix section; the stirring machine comprises a stirring part, a stirring part and a stirring part, wherein the stirring part comprises a stirring table (1), a lifting spring (2) is connected above the stirring table (1), a stirring cylinder (3) is arranged at the top of the lifting spring (2), and an automatic stirring head (28) is arranged in the stirring cylinder (3).
6. 6. The cold-bond screenable granulator according to claim 1, further comprising an aggregate classification section; The aggregate classifying part comprises a weighing conveyor belt (25), one end of the weighing conveyor belt (25) is connected with the collecting structure, and the other end of the weighing conveyor belt is connected with a collecting cylinder (27).
7. 7. Cold-bonding screenable granulator according to claim 1, characterized in that the collection structure comprises a second collection drawer (9) and a plurality of first collection drawers (8), each first collection drawer (8) being arranged in correspondence of each layer of circular screen (7) and being connected to the output end of the circular screen (7), the second collection drawer (9) being arranged below the lowermost layer of circular screen (7).
8. 8. Cold-bonding screenable granulator according to claim 7, characterized in that the inlet of the first aggregate drawer (8) is arranged at an oblique angle.
9. 9. Cold-bonding screenable granulator according to claim 1, characterized in that the granulation section further comprises a cleaning structure comprising wire brushes (10) arranged parallel to the drum (5).
10. 10. Cold-bonding screenable granulator according to claim 1, characterized in that the outer walls of the extrusion and screening structures are provided with magnetic doors (21).

Description

Cold bonding agent sieving granulator Technical Field The utility model belongs to the technical field of rolling granulator, and particularly relates to a cold-bonding screenable granulator. Background With the rapid development of society and the promotion of modern town construction, a large amount of infrastructure is built, so that the consumption of natural aggregate is increased day by day, and the natural aggregate becomes a second natural resource for human consumption. Meanwhile, a large amount of solid wastes are accumulated to occupy land, pollute water sources and harm human health, and bring great pressure to society manpower, material resources and financial resources. Thus, the development of artificial aggregate is attracting more and more attention. The artificial aggregate generally takes solid waste as a raw material, and provides a new solution for solving the problems of natural resource consumption and solid waste environmental pollution. The rolling granulator is widely applied to the preparation of artificial aggregate, and can be used for pressing material powder into aggregate with uniform particle size through the rolling cylinder according to requirements, so that the operation is convenient and the energy consumption is low. However, the conventional roll granulator has a plurality of defects, particularly, due to the design of a cylindrical roller, the contact surface of the double rollers is only one line at one moment in the extrusion process, so that the strength of the produced aggregate is reduced due to insufficient compactness. Meanwhile, the aggregate produced by the traditional method is spherical with consistent diameter, on one hand, the spherical aggregate has poor durability, weak bonding force with cement paste and poor segregation resistance due to the fact that the surface of the spherical aggregate is smooth, the mutual nesting interaction among particles is less, so that the spherical aggregate is not applicable to high-strength concrete, on the other hand, the traditional method only can produce aggregates with the same grading, and the aggregates with the grading at different levels are required to be matched with each other according to the corresponding proportion to improve the compactness of the concrete, and obviously, the aggregate produced by the traditional granulator cannot meet the requirements of the grading at different levels required by the preparation of the concrete. Therefore, the existing rolling granulator cannot produce aggregates with different grades, so that the requirements of preparing concrete are difficult to meet. Disclosure of utility model The utility model provides a cold-bonding screenable granulator, which aims to solve the technical problem that the existing rolling granulator cannot produce aggregates with different gradations, so that the requirements for preparing concrete are difficult to meet. In order to achieve the above purpose, the present utility model adopts the following technical contents: a cold-bonding screenable granulator comprising a granulation section; the granulating part comprises a feed inlet, an extrusion structure, a screening structure and a collecting structure which are sequentially connected from top to bottom; The extrusion structure comprises at least one group of two rollers which are symmetrically arranged, and an extrusion space is formed between the two rollers; the roller adopts a polygonal prism body, and a plurality of grooves with different gradations and irregular shapes are formed in the roller; The screening structure comprises a plurality of layers of round hole screens with different gradations, wherein the round hole screens are arranged from top to bottom, and the sizes of through holes from the uppermost layer to the lowermost layer of round hole screens are gradually reduced; The round hole sieve is arranged below the roller, and the output end of the round hole sieve is connected with the collecting structure. Further, a heating spiral track is arranged between the extrusion structure and the screening structure and is used for heating and solidifying aggregate and spreading aggregate with different particle sizes. Further, one end of the round hole sieve is provided with a rotary structure; the rotary structure comprises a rotary main body and a rotary rod, one end of the round hole sieve is lapped on the rotary rod, the rotary main body can be screwed to drive the round hole sieve to move from a horizontal state to an inclined state through the rotary rod, and when the round hole sieve moves to the inclined state, aggregates slide from the round hole sieve to the collecting structure. Further, the roller comprises an inner cylinder and an outer cylinder sleeved outside the inner cylinder, a groove is formed in the outer surface of the outer cylinder, the inner cylinder is connected with the sawtooth-shaped structure of the outer cylinder in an adapting mode through a buckli