CN219408470U

CN219408470U - Wet dust fall discharging device for machine-made sand finished products

Info

Publication number: CN219408470U
Application number: CN202320141469.1U
Authority: CN
Inventors: 郑国印; 常立青; 刘占波; 于志明; 付振国; 胡振鹏
Original assignee: Hebei Iron and Steel Group Mining Co Ltd
Current assignee: Hebei Iron and Steel Group Mining Co Ltd
Priority date: 2023-02-07
Filing date: 2023-02-07
Publication date: 2023-07-25
Anticipated expiration: 2033-02-07

Abstract

The utility model relates to a wet dust fall blanking device for machine-made sand finished products, and belongs to the technical field of blanking equipment in the stone ballast sand making industry in the metallurgical industry. The technical proposal is as follows: a baffle (3) and a material distribution net (4) are arranged on one blanking side of the machine head roller (2), one side of the material distribution net (4) close to the machine head roller (2) is fixed on a rotating shaft (9), two ends of the rotating shaft (9) are rotationally connected to a machine cover (1), a steel wire pull rope (6) is arranged on one side of the material distribution net (4) far away from the machine head roller (2), and the steel wire pull rope (6) penetrates through the top of the machine cover (1) and is provided with an adjusting spring (7); the baffle (3) is positioned above the material distribution net (4), and the baffle (3) is inclined towards the material distribution net (4); the water spray pipe network (5) is positioned under the material distribution network (4), and a plurality of spray nozzles (10) are arranged in the water spray pipe network (5). The beneficial effects of the utility model are as follows: the machine-made sand falling dust amount can be greatly reduced by adapting to material layers with different thicknesses on the conveyor belt.

Description

Wet dust fall discharging device for machine-made sand finished products

Technical Field

The utility model relates to a wet dust fall blanking device for machine-made sand finished products, and belongs to the technical field of blanking equipment in the stone ballast sand making industry in the metallurgical industry.

Background

In the production process of the building stone ballast industry, the machine-made sand is widely applied to the engineering construction for replacing river sand as an important product, the production of the machine-made sand is accompanied with the generation of a large amount of stone powder, but the preparation process of the concrete has clear requirements on the stone powder content, the stone powder content directly influences the strength characteristics of the concrete, and a proper amount of stone powder has a micro aggregate filling effect after being mixed into the concrete, so that the void characteristics of the concrete can be obviously improved, the slurry-aggregate interface structure is improved, and the compactness of the concrete is improved. Therefore, 2% -7% of stone dust is commonly mixed in finished products of machine-made sand. When machine-made sand containing powder in the dry sand making process enters a finished product bin, a large amount of dust can be generated due to the large height fall between a feed opening and the bin, the production environment and the atmosphere quality are seriously influenced, and the great environmental protection risk exists, so that the body health of first-line workers is endangered. Generally, clear water can be mixed in the blanking process of machine-made sand to play a role in dust fall, but when the material layer of the conveying belt is thicker, the effect of uniformly humidifying materials is difficult to achieve, and the dust fall effect is limited.

Disclosure of Invention

The utility model aims to provide a wet dust fall blanking device for machine-made sand finished products, which can adapt to material layers with different thicknesses on a conveyor belt, greatly reduce the dust quantity of the machine-made sand falling to the ground and solve the problems in the background technology.

The technical scheme of the utility model is as follows:

the wet dust fall blanking device for the machine-made sand finished product comprises a hood, a machine head roller, a baffle, a distributing net, a water spraying pipe net, a steel wire pull rope, an adjusting spring, a conveying belt, a rotating shaft and a spraying nozzle, wherein the baffle and the distributing net are arranged on one blanking side of the machine head roller; the baffle is positioned above the material distribution net and is inclined towards the material distribution net; the water spray pipe network is positioned under the material distribution network, and a plurality of spray nozzles are arranged in the water spray pipe network.

The baffle and the material distribution net are rectangular, and the lengths of the baffle and the material distribution net are matched with the length of the machine head roller.

The baffle is fixed on the machine cover.

The two steel wire pull ropes are respectively fixed on the material distribution net far away from the machine head roller, and the upper ends of the two steel wire pull ropes respectively penetrate through the top of the machine cover and are arranged on the adjusting spring.

The width of the material distribution net is 0.8 times of the length of the material distribution net.

The water spray pipe network is rectangular matched with the material distribution network, and each side is provided with a plurality of spray nozzles for spraying downwards.

The beneficial effects of the utility model are as follows: the machine-made sand falling dust collection device can adapt to material layers with different thicknesses on a conveying belt, is simple in structure and convenient to install and use, greatly reduces the machine-made sand falling dust amount, effectively reduces the dust concentration in a finished product bin, and protects the environment.

Drawings

FIG. 1 is a front view of the present utility model;

FIG. 2 is a schematic view of a distribution network structure according to the present utility model;

FIG. 3 is a schematic view of the spray line structure of the present utility model;

in the figure: the device comprises a hood 1, a roller 2, a baffle 3, a material distribution network 4, a water spraying network 5, a steel wire pull rope 6, an adjusting spring 7, a conveyor belt 8, a rotating shaft 9 and a spray nozzle 10.

Description of the embodiments

The utility model is further illustrated by way of example with reference to the accompanying drawings.

Referring to the accompanying drawings 1-3, a wet dust fall blanking device for machine-made sand finished products comprises a hood 1, a machine head roller 2, a baffle 3, a distributing net 4, a water spraying pipe network 5, a steel wire pull rope 6, an adjusting spring 7, a conveyor belt 8, a rotating shaft 9 and a spraying nozzle 10, wherein the baffle 3 and the distributing net 4 are arranged on one blanking side of the machine head roller 2, the distributing net 4 is in a horizontal state, one side of the distributing net 4, which is close to the machine head roller 2, is fixed on the rotating shaft 9, two ends of the rotating shaft 9 are rotatably connected to the hood 1, the steel wire pull rope 6 is arranged on one side, which is far away from the machine head roller 2, of the distributing net 4, and the steel wire pull rope 6 passes through the top of the hood 1 and is provided with the adjusting spring 7; the baffle plate 3 is positioned above the material distribution net 4, and the baffle plate 3 is inclined towards the material distribution net 4; the water spray pipe network 5 is positioned under the material distribution network 4, and a plurality of spray nozzles 10 are arranged in the water spray pipe network 5.

In this embodiment, referring to fig. 1-3, the baffle 3 and the water spraying pipe network 5 of the distributing network 4 are rectangular, the lengths of the baffle 3 and the distributing network 4 are the same as the length of the head drum 2, and the width of the distributing network 4 is 0.8 times the length of the distributing network 4. The baffle 3 is a groove-type wear-resisting plate and is arranged at the position 20cm below the blanking end of the machine head roller 2, so that the machine-made sand for blanking is ensured to be completely received by the material distribution net 4.

Two steel wire ropes 6 are fixed at one end to two corners of the separating net 4 at one end far away from the machine head roller 2, and the other end passes through the machine cover 1 and is provided with an adjusting spring 7.

In order to achieve the purpose of ideally wetting materials, meanwhile, dust fall water is prevented from wetting a distribution net to influence powder to fall, a 12-hole umbrella-shaped nozzle rectangular water spray pipe network is arranged 30cm below the distribution net 4, the spray nozzle 10 faces downwards, and the purposes of humidifying the materials and reducing dust can be achieved when machine-made sand falls into a storage bin.

The finished product of the machine-made sand is forced to pass through the separating net 4 in the blanking process so as to achieve the purpose of dispersing the material layer. However, due to the fluctuation of the source and the equipment, the amount of finished machine-made sand transported per unit time by the conveyor belt 8 is different, and the thickness of the material layer is also different, so that the angle of the material distribution net 4 must be adjusted according to the blanking amount by the material distribution net 4. When the material is less, the material distribution net 4 is kept horizontal basically by the dead weight; when more materials are provided, the material distribution net 4 is inclined to the opposite direction of the conveying belt by a certain angle through the action of the adjusting spring 7, and the more the materials are, the larger the inclined angle is, so that the purposes of increasing the material distribution area and preventing the material from blocking the material opening are achieved. After the material is distributed, rectangular spraying pipe networks are arranged in the discharging direction, so that the purposes of uniformly mixing materials and controlling machine-made sand to fall to the ground to generate dust can be achieved.

Claims

1. A wet dust fall unloader of mechanism sand finished product, its characterized in that: the machine head comprises a machine cover (1), a machine head roller (2), a baffle (3), a material distribution net (4), a water spraying pipe network (5), a steel wire pull rope (6), an adjusting spring (7), a conveying belt (8), a rotating shaft (9) and a spraying nozzle (10), wherein the baffle (3) and the material distribution net (4) are arranged on one blanking side of the machine head roller (2), the material distribution net (4) is in a horizontal state, one side, close to the machine head roller (2), of the material distribution net (4) is fixed on the rotating shaft (9), two ends of the rotating shaft (9) are rotationally connected to the machine cover (1), the steel wire pull rope (6) is arranged on one side, far away from the machine head roller (2), of the material distribution net (4), and the steel wire pull rope (6) penetrates through the top of the machine cover (1) and is provided with the adjusting spring (7); the baffle (3) is positioned above the material distribution net (4), and the baffle (3) is inclined towards the material distribution net (4); the water spray pipe network (5) is positioned under the material distribution network (4), and a plurality of spray nozzles (10) are arranged in the water spray pipe network (5).

2. The wet dust settling and blanking device for machine-made sand finished products according to claim 1, wherein the wet dust settling and blanking device is characterized in that: the baffle (3) and the material distribution net (4) are rectangular, and the lengths of the baffle (3) and the material distribution net (4) are matched with the length of the machine head roller (2).

3. A machine-made sand finished wet dust fall unloader according to claim 1 or 2, characterized in that: the baffle (3) is fixed on the hood (1).

4. The wet dust settling and blanking device for machine-made sand finished products according to claim 2, characterized in that: the two steel wire pull ropes (6) are respectively fixed on the material distribution net (4) far away from the machine head roller (2) at the lower ends of the two steel wire pull ropes (6), and the upper ends of the two steel wire pull ropes (6) respectively penetrate through the top of the machine cover (1) and are arranged on the adjusting spring (7).

5. The wet dust settling and blanking device for machine-made sand finished products according to claim 2, characterized in that: the width of the material distribution net (4) is 0.8 times of the length of the material distribution net (4).

6. The wet dust settling and blanking device for machine-made sand finished products according to claim 2, characterized in that: the water spraying pipe network (5) is rectangular and matched with the material distributing network (4), and each side is provided with a plurality of spraying nozzles (10) for spraying downwards.