The principle of sand tin mining equipment

The principle of sand tin mining equipment

Sand tin ore is a common type of tin ore, mainly composed of cassiterite, quartz, feldspar, etc. In the beneficiation process of tin ore, special equipment is required to achieve the separation and extraction of the ore. This article will introduce the principles of sand tin ore equipment, including magnetic separators, heavy medium separators, flotation machines, etc.

1、 The principle of magnetic separator

A magnetic separator is a device that utilizes the selective adsorption of magnetic substances on minerals for separation. In the beneficiation process of tin ore, there are two commonly used magnetic separators: dry magnetic separators and wet magnetic separators. The principle is as follows:

1. Dry magnetic separator

A dry magnetic separator is a device that utilizes the selective adsorption of magnetic substances on minerals for separation. Magnetic substances adsorb magnetic minerals onto the surface of magnetic substances through the action of a magnetic field, thereby achieving the separation of minerals. Dry magnetic separators are suitable for processing coarse-grained minerals, but the treatment effect for fine-grained minerals is not satisfactory.

2. Wet magnetic separator

A wet magnetic separator uses water as a medium and, under the action of a magnetic field, adsorbs magnetic minerals onto the surface of magnetic substances, thereby achieving mineral separation. Wet magnetic separators are suitable for processing fine-grained minerals, but the treatment effect for coarse-grained minerals is not satisfactory. At the same time, the wet magnetic separator also needs to recycle water, which increases the complexity of the equipment.

2、 The principle of heavy medium sorting machine

A heavy medium separator is a device that uses media of different densities to separate minerals. In the beneficiation process of tin ore, commonly used heavy medium separators include flotation tanks, cyclones, etc. The principle is as follows:

1. Flotation cell

A flotation cell is a device that uses water as a medium to separate minerals into different densities. In the flotation cell, the ore is added to the water and separated from the water through stirring and the action of bubbles. The density of minerals is greater than that of water and will sink to the bottom; The density of minerals is less than that of water, and they will float on the water surface. By adjusting the density of water, mineral separation can be achieved.

2. Cyclone

A cyclone is a device that uses rotational and centrifugal forces to separate minerals. In a cyclone, ore is added to a rotating cylinder and separated into substances of different densities by centrifugal force. Minerals with high density will sink to the bottom, while minerals with low density will float on top. By adjusting the rotational speed and centrifugal force, mineral separation can be achieved.

3、 Principle of flotation machine

A flotation machine is a device that utilizes the affinity between minerals and bubbles for separation. In the beneficiation process of tin ore, commonly used flotation machines include mechanical flotation machines, air flotation separators, etc. The principle is as follows:

1. Mechanical flotation machine

The mechanical flotation machine is a device that uses mechanical force and bubbles to separate minerals. In a mechanical flotation machine, the ore is added to the flotation cell, and through stirring and the action of bubbles, the mineral is combined with the bubbles. The affinity of bubbles causes minerals to float together with bubbles on the water surface, thereby achieving mineral separation.

2. Air flotation separator

The air flotation separator is a device that uses bubbles to separate minerals. In the air flotation separator, the ore is added to the flotation cell and is combined with bubbles by spraying them. The affinity of bubbles causes minerals to float together with bubbles on the water surface, thereby achieving mineral separation.

Summary:

The principles of sand tin ore equipment include magnetic separators, heavy medium separators, flotation machines, etc. A magnetic separator is a device that uses magnetic substances to selectively adsorb minerals for separation. A heavy medium separator is a device that uses media of different densities to separate minerals. A flotation machine is a device that uses the affinity between minerals and bubbles for separation. In the beneficiation process of tin ore, it is necessary to select appropriate equipment for separation and extraction based on the properties of the ore and beneficiation requirements.

The principle of sand tin mining equipment