Place of Origin:
China
Brand Name:
Hengyang
Certification:
ISO9001
Model Number:
HC-605
Multi-axis grinder is a high-performance grinding equipment widely used in industries such as iron concentrate, gold mines, and copper mines. It is known for its high product fineness, high yield, and low energy consumption, and is highly favored by users.
In a slurry with a solid content of 40-60%, the multi-axis grinder can grind particles ≤ 1mm to 5-45 μ The particle size range of m enables the individual dissociation of minerals, thereby improving the concentrate grade and recovery rate.
We have achieved significant success in the production practice of a certain iron mine in Yunnan. The recovery rate of iron concentrate has reached 72.4%, with a production capacity of 100 tons per hour, and a unit power consumption of only 8.7 kWh/ton.
By using multiple mixing shafts suspended in the grinding chamber, a combination of gravity and fluidization techniques is employed. By utilizing the rotational kinetic energy of multi-axis and multi-stage alloy stirring plates, eddy currents are formed between the medium and slurry in the grinding chamber, causing particles to collide and squeeze with each other under the action of high-energy moving medium balls, thereby achieving full grinding of mineral materials.
During operation or shutdown, all rolling bearings are affected by symmetrical loads, reducing maintenance work and maximizing bearing life. By using low-density ceramic balls as grinding media, energy consumption and consumption are significantly reduced, thereby reducing the impact of impact force and rotating vertical circulation, alleviating dynamic loads, and greatly reducing basic costs and later maintenance time.
Multi-shaft Grinder - Low Medium Consumption:
Media consumption is closely related to energy efficiency. In the example of a beneficiation plant in Eastern Europe, the use of multi-axis grinding reduced the medium consumption from the original 821g/t to 350g/t, a decrease of 58%. This achievement is attributed to two main reasons:
Firstly, as the grinding energy decreases, the consumption of grinding media correspondingly decreases;
Secondly, due to the elimination of uneconomical impact crushing methods such as ball hitting or ball hitting the lining plate, the amount of ball-breaking is significantly reduced, while the grinding medium inside the mill can maintain its shape and effectiveness.
Environmental protection technology for multi-axis grinding:
Nowadays, energy efficiency and environmental awareness are becoming increasingly important. Energy conservation not only means significantly reducing operating costs but also reducing carbon emissions. Due to the energy consumption required for the preparation of grinding media, reducing media consumption also means reducing net carbon emissions. Efficient energy-saving technologies can not only reduce operating costs but also shape a positive public image and help alleviate carbon emission control procedures. In most cases, multi-axis grinding can reduce carbon emissions by 30-50% in grinding processes.
Other advantages of multi-axis grinding:
Flexible feeding arrangement:
The equipment adopts a modular design, and according to specific process requirements, the optimal solution can be selected from multiple possible layout schemes.
Low noise level:
The noise is less than 85 dB. If the existing ball mill is used as a backup machine, the factory will be very quiet.
Improve operational security:
The moving parts are located inside the body, making installation convenient. Maintenance is simpler and has a longer usage cycle, which can effectively save maintenance time and costs.
A good working environment:
The working environment is more comfortable, easy to control and optimize, with a small footprint and low investment costs.
♦ Multi-axis grinders are usually placed after traditional horizontal ball mills or high-pressure roller mills, and their products are first fed into the mixing tank.
♦ In the top feeding arrangement (see figure), new raw materials are pumped into the hydrocyclone group for coarse and fine particle separation. Fine particles directly enter the subsequent process, while coarse particles are fed into the feeding port of the multi-axis mill through a slurry pump.
♦ The feeding port can be located on the side or bottom of the grinding chamber. For coarse materials, side feeding is more effective and can be integrated with a hydrocyclone for coarse selection and classification, sending large particles directly back to the grinding chamber. On the contrary, for fine materials, bottom feeding is more suitable.
♦ Once the coarse particle size decreases, they will be transported by the rising slurry to the overflow port of the grinding chamber.
♦ The connecting pipe transports the overflow material by gravity to the mixing tank, where the product and feed pass through the hydrocyclone group.
♦ The hydrocyclone divides the overflow material into coarse flow and fine flow. Coarse particles are circulated back to the feeding port of the multi-axis mill for regrinding, while fine particles are separated or dried downstream.
♦ During operation, the grinding medium will be consumed, so regular replenishment is needed to maintain optimal performance. The multi-axis grinding medium replenishment equipment provides a simple and accurate replenishment method to ensure optimal performance.
Process flow diagram of multi-shaft magnetic iron ore grinding
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