Process and management of heavy medium Beneficiation Technology

In mining production, heavy medium beneficiation technology is very important, which is directly related to energy utilization, resource saving and production efficiency. In recent years, with the continuous improvement of people's awareness of environmental protection, the traditional beneficiation technology is increasingly unable to meet the actual needs of protecting the ecological environment. As a technology that has an important impact on the sustainable development of China, it is necessary to innovate and improve the heavy medium beneficiation technology process and management. This paper summarizes the process flow of heavy medium beneficiation technology, analyzes the development status of heavy medium beneficiation technology, and puts forward some suggestions for improving the process and management of heavy medium beneficiation technology.

Overview of technological process of heavy medium beneficiation

(1) heavy medium separation of block ore. This process is mainly to separate the ore bed and ore body, and place mixed mineral materials in the heavy medium cyclone. Because the heavy medium separator has high precision and can process mineral materials in large quantities, it has great advantages in separating mixed mineral materials and improves the efficiency of mineral material separation. This process is generally applicable to large-scale concentrators. At present, the process problem is mainly reflected in the difficulty of management and recovery, which affects the improvement of production efficiency.

(2) jig roughing. In the process of jigging group separation, the screening materials with high slamming content are used, and the density of slamming is usually 1180kg / m2. The jigs used for pre slamming can effectively reduce the impact of slamming content in mineral resources on the previous separation process, avoid the abrasion damage caused by the slamming content of hydrocyclones, effectively ensure the service life of hydrocyclones and the jigging separation system The technical upgrading and the ore body fluctuating greatly have certain superiority.

(3) ore body jigging. In this process, mineral products are separated and treated mainly through the separation process of ore weight medium hydrocyclone. The process has the advantages of high precision, large processing capacity and low cost, but there are also some shortcomings, mainly reflected in the low production rate and low separation efficiency. At the same time, the process will produce a large waste of resources. Therefore, the process is more suitable for the concentrator with stable concentrate production, difficult mineral washability and large ore body washability

(4) secondary separation of heavy medium cyclone. In the secondary separation process of hydrocyclone, first of all, through the operation of bangstone discharging technology, the crushed mineral products are separated from the concentrate for secondary separation. Because the two products are separated and treated at the same time, this process is relatively complex, and two groups of medium recovery equipment are needed in the process, which also shows that the operation cost and construction cost of the process itself are high, involving Daily management and maintenance are also more.

(5) separation of two product heavy medium hydrocyclones. The heavy products and minerals are effectively separated by low density hydrocyclone, and the heavy products are separated again after separation to obtain minerals. The separation process of two product heavy medium hydrocyclone has very high requirements for raw materials, so the operation of the process is difficult and the operability is relatively low, so this process is not common in China's Beneficiation work.

Development status of 2-heavy medium beneficiation process

The development of heavy medium beneficiation process in China can be traced back to the early Ao's of last century. With the continuous development and popularization of heavy medium concentrators, the development of beneficiation process has been accelerated. In recent years, the concentration industry has paid more attention to the improvement of heavy medium concentration process, but in fact, there are still some problems in the whole process, which do not achieve the expected concentration efficiency, and the concentration technology needs to be improved, mainly including the following three problems. First, the mechanical equipment is large in size and occupies a large area in the plant, which increases the production cost and capital construction cost and affects the economic benefits; second, the process is too simplified and the separation effect is not good; third, at present, the heavy medium beneficiation process used by China's concentrators is usually a medium density, which can not meet the requirements of mineral separation level width.

3. Suggestions on improving the process and management of heavy medium Beneficiation Technology

(1) reduce medium consumption. At present, the problem of high medium consumption generally occurs in the process of heavy medium beneficiation in China's concentrators. High medium consumption will cause frequent supplement of medium, which will inevitably reduce the stability of medium density and bring serious economic losses. In order to solve this problem effectively, we should strengthen the strict control of medium consumption, reduce the production cost to the greatest extent, so as to ensure the economic benefits of production. First of all, we should actively find out the causes of medium consumption, formulate effective solutions according to different reasons, and start from three aspects of production management, process equipment and media selection at the same time, and effectively control and reduce medium consumption.

(2) maintain beneficiation equipment and standardize daily work. Heavy medium cyclone is an important equipment in the whole heavy medium beneficiation process. Its equipment maintenance and normal operation are directly related to the smooth development of all technological processes. Therefore, we need to regularly maintain and repair the beneficiation equipment, especially the heavy medium hydrocyclone, maintain and extend its service life in strict accordance with the equipment instructions, reasonably adjust and standardize the screening materials, use frequency and equipment structure, and ensure that the equipment status and use process can meet the requirements of relevant production regulations without excessive loss of equipment. Combined with the characteristics of the inner wall of heavy medium hydrocyclone, such as brittleness and high hardness, the wear phenomenon inside the equipment can be avoided by adding a colloidal protective layer inside. Through regular inspection and evaluation, the hidden dangers of the equipment are found in time, and effective solutions are taken for different problems, so as to maximize the working life of the equipment.

(3) continuous innovation and introduction of mineral processing automation technology. In today's society, innovation is the biggest driving force for the development of various fields, and heavy medium beneficiation technology is no exception. The development of science and technology has accelerated the process of mineral processing automation technology. Therefore, we should continue to innovate, actively learn advanced mineral processing automation technology, reduce human workload, improve production quality, and promote the standardized and efficient development of production. At the same time, strengthen the effective control and detection of the production equipment in the process flow, ensure that the equipment value can be within the scope suitable for the production demand, and ensure the safety of the production process. For the equipment with hidden dangers, it is necessary to make clear the effective safety prevention measures in a timely manner through pre control to avoid the occurrence of problems.

(4) organize training regularly and attach importance to personnel training. Talents are the actual executors of heavy media beneficiation technology. Therefore, we should pay attention to the cultivation of professional talents, organize regular education and training activities, improve the professional quality and professional skills of staff in the activities, strengthen their comprehensive understanding of equipment maintenance and repair, production process, production requirements and other contents, and establish a green concept of environmental protection and energy saving, so as to ensure students' health Orderly, efficient and green production process. Strengthen the understanding of the actual situation of the staff, grasp their practical operation ability and professional technical literacy, make clear the adaptability of their work positions to the actual situation, and carry out targeted and effective training based on this. At the same time, the mechanism of unified assessment and management shall be implemented. Through the establishment of a sound management system, the safety awareness, enthusiasm and consciousness of the staff shall be enhanced, and the management system shall be continuously improved to stimulate the enthusiasm of the staff, so that they can play their maximum value and role in the post and promote the promotion of production efficiency.

 Conclusion

With the continuous progress of the society, we should keep up with the development of the times, set up innovative ideas, constantly improve the level of heavy medium beneficiation technology and management quality, so as to create more production benefits and promote the sustainable development of China's mineral production.