CN211801663U - Small-size full-automatic flotation device in laboratory - Google Patents

Abstract

A small laboratory full-automatic flotation machine, comprising a motor and a flotation cell, the cell wall of the flotation cell is provided with a double-layer structure with a vacuum structure between the two layers; the bottom of the flotation cell is provided with a waste discharge port, and the discharge The mouth is arranged in the shape of a funnel with a certain inclination angle; the flotation tank is provided with a stirring device, the outer side of the stirring cover is provided with four rotatable water spray pipes, and one side of the water pipe is provided with a row of water spray holes; the control device includes a control The panel, temperature control system, concentration monitoring system and liquid level adjustment system can be used for the preparation of materials and flotation reagents, material temperature adjustment, variable frequency rotation of the rotating shaft, adjustment of liquid level, self-cleaning and other work through artificially written programs. The flotation machine of the invention can realize fully automatic and precise operation except feeding, avoid experimental errors caused by human subjective operation, can improve the efficiency of flotation operation, can obtain ideal flotation index, realize the frequency conversion rotation of the motor, and can Save a lot of power, play an energy-saving effect.

Description

A laboratory small automatic flotation machine

technical field

The invention relates to the technical field of mineral flotation, in particular to a small laboratory full-automatic flotation machine.

Background technique

Graphite, sulfur, diamond, quartz, mica, feldspar, fine coal and other non-metallic minerals and silicate minerals and fluorite, apatite, barite and other non-metallic salt minerals and potassium salt, rock salt and other soluble salts Selection of quasi-minerals. Billions of tons of ores and materials are processed by flotation each year around the world. The froth flotation method is often used to separate fine-grained minerals. Compared with the shaking table beneficiation method, high gradient magnetic separation and oil aggregation, bubble flotation has higher efficiency. The main principle of the flotation method is to separate minerals and impurities by using the natural hydrophobicity of the surface of mineral particles and the hydrophilicity of slag based on the difference in the surface chemical properties of useful minerals and gangue minerals.

Laboratory flotation experiments are usually performed to determine the optimal dosing regime and operating parameters for a particular ore. Flotation machine is the abbreviation of flotation machine, which refers to the mechanical equipment that completes the flotation process. It floats to the surface of the pulp and is scraped out to form a foam product, and the rest is retained in the pulp to achieve the purpose of separating minerals; the flotation machine has many structural forms.

At present, the most commonly used is the mechanical stirring flotation machine, which are all manually operated. Artificial preparation of flotation reagents and feeding minerals, water heating with a water bath, artificial addition of water to control the liquid level, continuous rotation of the shaft at a fixed speed, artificial control of the opening and closing of the equipment, artificially dismantling the flotation cell. Unloading and cleaning make it difficult to ensure the quality of concentrate and the efficiency of flotation.

Utility model content

In view of this, the purpose of the present invention is to provide a fully automatic flotation machine to solve the technical problems of errors, flotation efficiency and poor concentrate quality caused by human subjective operation of the existing flotation machine. It can avoid disassembly of the tank body, self-unloading, self-cleaning, and fully automatic operations except for adding materials.

The embodiment of the present invention provides a flotation machine, which includes a driving device, a stirring device, a sorting device and a control device.

The driving device includes a motor and a transmission shaft, the motor and the transmission shaft are respectively fixed on the front and rear sides of the strut, and the transmission shaft is connected with the rotating shaft.

The stirring device includes a rotating shaft, a flotation cover, an air inlet pipe and a water spray pipe. An impeller is fixed at the bottom end of the rotating shaft, and the impeller is provided with a plurality of circular holes.

The flotation cover wraps the rotating shaft, and there is a large gap between the two to form a flotation cavity. The upper end of the flotation cover has an air intake pipe, and the air enters through the air intake pipe and reaches the impeller through the flotation cavity to be discharged.

Four rotatable water spray pipes are fixed on the outside of the flotation cover, and are connected with the water guide pipes. The water spray pipes are provided with a row of small holes through which water is sprayed out.

The sorting device includes a flotation cell and a scraper, the flotation cell is fixed on the support column, the cell wall has a double-layer structure, and there is vacuum between the double-layer structures.

The bottom of the flotation cell is in the shape of a funnel with a certain inclination angle, and the lower end has a waste discharge port, the waste discharge port has a knob switch, and the tail material is discharged therefrom, and the scraper is fixed on the outer edge of the upper end of the flotation cell.

The control device includes a control panel, a self-cleaning system, a batching system, a temperature regulation system, a concentration monitoring system and a liquid level regulation system. The control panel is fixed to one side of the pillar and controls other systems.

The temperature regulation system includes a heating strip and a temperature sensor, and the heating strip and the temperature sensor are fixed on the back side of the flotation cell.

The self-cleaning system includes a water storage tank, a water guide pipe and a water spray pipe, the water storage tank is fixed on the left side of the upper end of the device, the water guide pipe extends from the lower end of the water storage tank to the flotation tank, and the other is connected to the flotation tank. The spray pipe on the outside of the hood.

The batching system includes a medicament tank and a conduit, the medicament tank is fixed on the right side of the upper end of the device, and there are three, and the conduit extends from the lower end of the medicament tank to the flotation tank.

The concentration monitoring system includes a concentration sensor fixed on the back side of the flotation cell.

The liquid level adjustment system includes a liquid level display device, and the liquid level display device is fixed on the left side of the upper end of the device, close to the water storage tank.

Description of drawings

FIG. 1 is a schematic structural diagram of a flotation machine according to an embodiment of the present invention.

FIG. 2 is a side view of the flotation machine according to the embodiment of the present invention.

3 is a flotation cell and a fixing device of the flotation machine according to the embodiment of the present invention.

Detailed ways

The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Write a certain program on the control panel (14) (the functional relationship between the concentration and the rotational speed), according to the real-time monitoring of the concentration sensor (19), the rotating shaft rotates at variable frequency according to the program setting to adapt to the change of concentration, and it is also possible to avoid a fixed rotational speed. The power waste caused by the rotation saves energy. Set the flotation time and end the flotation within the specified time to ensure the quality of the concentrate.

After the material to be flotated is added to the flotation cell (5), the flotation machine is turned on, and the water in the water storage tank (10) is automatically added to the flotation cell (5) through the aqueduct to the set scale line, and the motor (12) Start, drive the rotating shaft (8) to rotate through the transmission device (11), start stirring at the set rotational speed, and stir and mix the material and water. At the same time, the heating bar (17) starts to work to heat the pulp. After the set time is reached, the a agent in the a agent tank (13) is automatically injected into the flotation tank (5) through the conduit connected to the lower end of the agent tank (13). After the set time, the b agent tank (13) The b medicament is also automatically injected into the flotation cell (5) through the conduit, and several medicaments can be set to be injected according to the physical and chemical properties of the material itself. After injecting the desired agent, continue to stir and mix to make a complete flotation agent.

The temperature sensor (18) monitors in real time, until the heating bar (17) heats the pulp to a set temperature range (the activity of the flotation agent at a specific temperature is the best) and then stops heating. At this time, the air intake pipe (9) begins to pass air, and bubbles are blown out through the round holes on the stirring impeller (4), and the flotation work officially begins. The bubbles are in full contact with the minerals, so that the minerals are bound on the foam and float to the surface of the slurry to form mineralized bubbles. At this time, the scraper (6) starts, drives the scraper to rotate, scrapes out the air bubbles, and enters the container on the lower tray (2) along the edge of the flotation cell.

As the scraper continues to scrape out mineral particles and air bubbles, the liquid level will gradually drop, and the liquid level display device (15) will feed back the liquid level height to the control panel (14). According to the programmed program, the water storage tank (16) The water in the tank is automatically injected into the flotation cell (5), and the water injection is stopped when the liquid level reaches the specified height, and the operation is repeated.

As the impeller continues to stir, the heat of the pulp will continue to dissipate into the air, and the mineralized bubbles will also take away part of the heat. The temperature sensor (18) will monitor the pulp temperature in real time, and feed back the data to the control panel (14). When the temperature drops below the set temperature range, the heating strip (17) starts to heat the pulp until the set temperature range is reached. Stop heating and repeat this operation.

As the mineral particles continue to be floated out, the concentration of useful minerals in the pulp will gradually decrease. The concentration sensor (19) will monitor the solution concentration in real time and feed back the data to the control panel (14). According to the previously input program, the motor (12) will change the speed in real time to match the flotation effect, and repeat this operation.

After the specified flotation time, the motor (12) and the scraper (6) stop rotating at the same time, and the temperature system, the concentration system and the liquid level system stop working. Turn on the knob switch of the waste discharge port (3) under the flotation cell (5), and discharge the waste liquid into the container on the tray (20). Turn on the self-cleaning system, the water in the water storage tank (16) enters the water spray pipe (7) along with the aqueduct, sprays through the pores, cleans the residual residue on the flotation tank wall, and discharges through the waste discharge port (3). Turn off the switch of the waste discharge port (3), start to fill the water to the specified scale, the motor (12) starts to drive the shaft (8) to rotate, clean the residue on the impeller (4) and the flotation cover, and clean the flotation tank wall for a second time. (The purpose of cleaning is to avoid errors caused by the mixing of different materials.) After completing this operation, open the switch of the waste discharge port (3) to discharge the sewage.

In this flotation process, two products are obtained, one is concentrate and the other is tailings.

The flotation process ends, or the power is turned off, or the next flotation is performed.

The technical solutions of the present invention have been described in detail above with reference to the specific embodiments, which are used to help understand the idea of the present invention. Deductions and modifications made by those skilled in the art on the basis of the specific embodiments of the present invention also fall within the protection scope of the present invention.

Claims (5)

1. The utility model provides a small-size full-automatic flotation device in laboratory, includes motor (12), flotation cell (5), its characterized in that: the wall of the flotation tank (5) is provided with a double-layer structure, a vacuum structure is arranged between the two layers to reduce heat loss, the bottom of the flotation tank (5) is provided with a waste material outlet (3), the material outlet is arranged in a funnel shape with a certain inclination angle, and a knob switch is arranged below the port; and a stirring device is arranged in the flotation tank (5).

2. The flotation machine of claim 1, wherein: the stirring device comprises a transmission shaft (10) connected with a motor through a transmission device (11), the transmission shaft (10) drives a rotating shaft (8) to rotate, air enters a flotation cavity formed between a flotation cover and the rotating shaft (8) through an air inlet pipe (9) and passes through a small hole in the stirring impeller (4) to form bubbles.

3. The flotation machine of claim 2, wherein: four rotatable water spraying pipes (7) are arranged on the outer side of the flotation cover at equal intervals, a row of small water spraying holes are formed in one side of each water pipe, and the four water spraying pipes (7) can rotate 90 degrees respectively to form a 360-degree surrounding spraying range; the spray pipe (7) and the water storage tank (16) hung on the left side of the upper end of the support (21) form a self-cleaning system.

4. A flotation machine according to claim 3, wherein: three agent grooves (13) are formed in the right side of the upper end of the support column (21), and the lower end of the support column is connected with a guide pipe to enter the flotation tank (5).

5. The flotation machine of claim 1, wherein: the side of the flotation tank (5) is provided with a temperature sensor (18), a heating strip (17) and a concentration sensor (19), and one side of the water storage tank (16) is provided with a liquid level display device (15) which are connected with a control panel (14) to form a regulation and control system.

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