Air inlet type impeller device of quartz sand flotation machine

Abstract

An air inlet type impeller device of a quartz sand flotation machine comprises a machine shell, a bearing body arranged on the machine shell in a penetrating mode, a stirring shaft arranged in the bearing body in a penetrating mode, and a power transmission assembly arranged on the machine shell and correspondingly matched with the upper end portion of the stirring shaft. The lower end of the bearing body is connected with an impeller cover plate, an impeller is arranged below the impeller cover plate, a connecting sleeve connected with the lower end of the stirring shaft is arranged on the impeller, and a group of air holes are uniformly distributed in the connecting sleeve. The device is simple in structure and convenient to use, ore pulp continuously and vertically circulates through air inflation, the layering and sand setting phenomena of the ore pulp in a flotation tank are eliminated, meanwhile, the probability of mutual collision between ore grains and bubbles is increased, and the sorting efficiency of the ore grains is improved.

Description

Technical Field

[0001] The utility model relates to the field of ore dressing equipment, in particular to an air inlet type impeller device of a quartz sand flotation machine. Background Art

[0002] Flotation is a common process for separating and purifying quartz sand minerals in ore dressing plants. By utilizing the difference in the hydrophobic properties of mineral surfaces and using appropriate flotation reagents and corresponding separation environments, the purpose of mineral separation can be effectively achieved.

[0003] In the quartz sand flotation process, the reverse flotation process is commonly used to remove impurities. Flotation reagents such as collectors, regulators, and foaming agents are added to the pulp. Among them, the collector will selectively adsorb on the surface of impurity ions to increase their hydrophobicity. Hydrophobic mineral particles move along with the pulp. When they encounter the bubbles in the pulp, they will adsorb on the surface of the bubbles and float up, and finally be scraped out by the scraper of the flotation machine.

[0004] Currently, most flotation machines are designed for fine particles and low - specific - gravity minerals and cannot adapt to the separation of coarse - particle minerals. The quartz sand used for float glass has relatively large particle sizes, usually in the range of - 0.7mm to + 0.1mm, and the specific gravity is usually 2.65t / m3.

[0005] It is difficult to achieve effective separation in the operation of conventional flotation machines. Quartz sand particles are prone to settling in the tank, and the size distribution of bubbles is uneven, and the bubbles are easily broken, resulting in poor separation effect. Summary of the Utility Model

[0006] The utility model aims to overcome the deficiencies in the prior art and provides a quartz sand flotation machine suitable for large - particle quartz sand.

[0007] The present application provides the following technical solutions:

[0008] An air inlet type impeller device of a quartz sand flotation machine, which includes a machine shell. A bearing body is penetrated through the machine shell, and a stirring shaft is penetrated through the bearing body. A power transmission component corresponding to the upper end of the stirring shaft is arranged on the machine shell. It is characterized in that: a reagent input pipe and an air inlet pipe are communicated with the bearing body. The lower end of the bearing body is connected with an impeller cover plate. An impeller is arranged below the impeller cover plate. A connecting sleeve connected to the lower end of the stirring shaft is arranged on the impeller, and a group of air holes are evenly distributed on the connecting sleeve.

[0009] On the basis of the above - mentioned technical solution, the following further technical solutions may be available:

[0010] The bearing body includes an upper shell located on the upper surface of the flotation machine shell and a lower shell located inside the flotation machine shell. The air inlet pipe is communicated with the upper shell, and the reagent input pipe is communicated with the lower shell.

[0011] The stirring shaft is a tubular structure, and a group of through holes are evenly distributed on the tube wall of its upper half.

[0012] The air inlet pipe is communicated with the blower.

[0013] A group of slurry suction holes are evenly distributed on the impeller cover plate.

[0014] Advantages of the utility model:

[0015] The utility model has the advantages of simple structure and convenient use. Through inflation, the pulp continuously circulates vertically, eliminating the layering and sand settling phenomena of the pulp in the flotation cell. At the same time, the mutual collision chance between ore particles and bubbles is increased, and the separation efficiency of mineral particles is improved. Description of the drawings

[0016] Figure 1 is a schematic structural diagram of the utility model. Specific implementation manners

[0017] As Figure 1 shown, an air inlet type impeller device of a flotation machine for quartz sand includes a housing 1 of the flotation machine, and a bearing body 2 is penetrated thereon. The bearing body 2 includes an upper housing a located on the upper surface of the housing 1 and a lower housing b located inside the housing 1 of the flotation machine. A stirring shaft 3 is penetrated inside the bearing body 2. The stirring shaft 3 is a tubular structure, and a group of through holes 3a are evenly distributed on the tube wall of the upper half of the stirring shaft 3.

[0018] A power transmission assembly 4 corresponding to and cooperating with the upper end of the stirring shaft is provided on the housing. The power transmission assembly 4 includes

[0019] a driven wheel 4a. A driven shaft 4c is penetrated on the driven wheel 4a. The lower end of the driven shaft 4c is connected to the upper end of the stirring shaft 3 through a coupling. A motor 4b forming a transmission cooperation with the driven wheel 4a is installed on the housing 1.

[0020] An air inlet pipe 8 is communicated with the upper housing a. The other end of the air inlet pipe 8 is communicated with a blower (not shown in the figure), and the blower is a Roots blower. A reagent input pipe 7 is communicated with the lower housing b. The upper end of the reagent input pipe 7 penetrates through the housing 1 and extends to the outside of the housing 1.

[0021] The lower end of the lower housing b is connected with a horizontally distributed impeller cover plate 5. A group of slurry suction holes 5a are evenly distributed on the impeller cover plate 5. The slurry suction holes 5a are round holes with a diameter of 50 mm.

[0022] An impeller 6 is provided below the impeller cover plate 5. The lower end of the stirring shaft 3 is connected to the impeller 6 through a connecting sleeve 6a. A group of air holes 6b are evenly distributed on the outer wall of the connecting sleeve 6a.

[0023] The Roots blower sends the airflow of about 20 kPa into the upper housing a through the air inlet pipe, transports it to the connecting sleeve through the tubular stirring shaft, and then sprays it out from the through holes. Under the action of the impeller, it is fully mixed with the pulp. The coarse particles not wrapped by bubbles do not show the phenomenon of sedimentation troughs, that is, they vertically circulate and rise in the trough body. It is mainly that when the impeller rotates, the air is discharged from the bottom of the trough body to the periphery of the stator, and the pulp follows the air and flows upward along the trough wall. When the impeller rotates, the pulp not fully floated enters again through the pulp suction holes for a new round of flotation, thus realizing the vertical circulation of the pulp. Under the action of the vertical circulating upward flow, it diffuses upward from the entire bottom of the trough, so that the foam is separated from the gangue minerals in the calm area at the upper part of the trough, and the useful minerals are selected into the foam products.

Claims

1. An air inlet impeller device for a quartz sand flotation machine, which comprises a machine shell (1), a bearing body (2) is penetrated on the machine shell (1), a stirring shaft (3) is penetrated in the bearing body (2), and a power transmission assembly (4) corresponding to and cooperating with the upper end of the stirring shaft (3) is arranged on the machine shell (1), and is characterized in that: A chemical agent input pipe (7) and an air inlet pipe (8) are communicated with the bearing body (2). The lower end of the bearing body (2) is connected with an impeller cover plate (5). An impeller (6) is arranged below the impeller cover plate (5). A connecting sleeve (6a) connected to the lower end of the stirring shaft (3) is arranged on the impeller (6). A group of air holes (6b) are evenly distributed on the connecting sleeve (6a).

2. The air inlet impeller device of a quartz sand flotation machine according to claim 1, characterized in that: The bearing body (2) includes an upper shell (a) located on the upper surface of the casing (1) and a lower shell (b) located inside the casing (1). The air inlet pipe (8) is communicated with the upper shell (a), and the chemical agent input pipe (7) is communicated with the lower shell (b).

3. The air intake impeller device of a quartz sand flotation machine according to claim 1, characterized in that: The stirring shaft (3) is of a tubular structure, and a group of through holes (3a) are evenly distributed on the pipe wall of the upper half of the stirring shaft (3).

4. The air intake impeller device of a quartz sand flotation machine according to claim 1, characterized in that: The air inlet pipe (8) is communicated with a blower.

5. The air intake impeller device of a quartz sand flotation machine according to claim 1, characterized in that: A group of slurry suction holes (5a) are evenly distributed on the impeller cover plate (5).

Images