1 magnetic spiral chute Wu Xiqing et al. added a magnetic field on the groove surface of the ordinary spiral chute to design a magnetic spiral chute (MSC). Compared with ordinary spiral chutes, MSC enables magnetic materials to be recycled more efficiently. The principle of beneficiation is that when magnetic minerals pass through a magnetic field, the magnetic components are attracted (not sucked) to the bottom of the chute under the action of magnetic force. Thereby entering the secondary circulation, the secondary circulation is used to transport the magnetic material into the interior of the chute and into the concentrate. The results of magnetic iron ore pure test show: magnetic field strength, number of turns and the helical chute feed concentration factors have an impact on the performance of the magnetic force of the spiral chute; especially effective to reduce the magnetic field in tailings magnetic component, to improve recovery of the magnetic component, increases the recovery rate of the magnetic iron of 25.4% iron, 5.9% zinc containing blast furnace gas sludge processing, reduction of zinc in concentrate grade from 5.9% to 1.8%. 2 Swirl magnetic separator In order to further improve the sorting efficiency of magnetic minerals in the beneficiation process, Shi Peiwei et al. explored the magnetite ore sorting mechanism and developed a new type of swirling magnetic sorting machine, which is characterized by the use of multiple sorting force fields ( Including magnetic force, buoyancy, gravity, centrifugal force, swirling hydrodynamics, etc., it can achieve lean or high-purity recovery. 3 swirl high gradient magnetic separator Lu Dongfang et al. introduced the basic structure of the cyclone high gradient magnetic separator. The Fluent finite volume and ANSYS finite element analysis software were used to simulate the fluid separation force field and magnetic field in the equipment. Its characteristics are as follows: (1) The difference in physical properties of the particles, that is, the difference in particle size, density and specific magnetic susceptibility, the superposition of magnetic force and centrifugal force in the same direction increases the force difference between the magnetic particles and the non-magnetic particles. In turn, the sorting property of materials of different properties can be improved. (2) Under the condition that the background magnetic field is applied in the sorting flow field, the magnetic agglomeration of the magnetic particles is equivalent to increasing the particle size of the magnetic particles, which is beneficial to the magnetic particles moving to the inner wall of the sorting chamber under the centrifugal force. (3) According to the difference of physical properties of materials, by adjusting the centrifugal force and background field strength of the swirling high gradient magnetic separator, the proportion of the force of the particles can be adjusted to maximize the difference in physical properties of different particles. (4) Since the entire sorting process is carried out in a strong turbulent centrifugal force field, the inclusion phenomenon is greatly alleviated, which is conducive to the improvement of the concentrate grade. (5) The swirling high gradient magnetic separator has the characteristics of large sorting chamber and wide particle size range sorting, so the blockage phenomenon does not occur. 4 oblique ring permanent magnet high gradient magnetic separator Wu Xiqing et al. developed a new type of oblique ring permanent magnet high gradient magnetic separator. The magnetic separator is a permanent magnetic system. The sorting ring is inclined and the tilt angle and speed of the sorting ring are adjustable. When sorting, magnetic The medium captures the magnetic ore particles in the bottom magnetic field region and rotates to the top non-magnetic field region to flush the unloading. The results show that adjusting the tilt angle of the sorting ring can change the magnitude of each force of the magnetic ore particles, thereby adjusting the lower limit of the magnetic separation particle size and the recovery rate of the magnetic separation operation; when the original ore iron grade is 17.81%, once Magnetic separation can obtain magnetic separation concentrate with a recovery of 65.05% and a total iron grade of 29.53%. 5 cycle high gradient centrifugal magnetic separator In order to improve the grade of magnetic concentrate, Chen Luzheng et al. proposed a new high-gradient magnetic separation method, centrifugal high-gradient magnetic separation, for sorting fine-grained magnetic ore. The separation characteristics of the device include the following two aspects: (1) the stirring action of the rotating magnetic medium keeps the particles in the slurry in a dispersed state, and the rotating magnetic medium causes the particles to be subjected to the shearing force and centrifugal force of the fluid, therefore, Selective capture of magnetic particles can be achieved. (2) The actual time of the particles passing through the matrix of the magnetic medium in the slurry is prolonged with the increase of the rotational speed of the magnetic medium and the decrease of the flow rate of the fluid through the magnetic medium, which can significantly increase the collision probability of the particles and the magnetic medium, and greatly improve the magnetic properties. The opportunity for the particles to be captured by the magnetic medium, therefore, can achieve the purpose of improving the recovery rate of the magnetic particles. 6 continuous high gradient centrifugal magnetic separator Johannes Lindner et al. introduced a new sorting device combining centrifugal force and high gradient magnetic force. The device collects magnetic particles through a magnetic medium disposed in the sorting chamber. Under the action of centrifugal force, the magnetic particles move toward the inner wall of the sorting chamber. The particles eventually leave the sorting chamber under the action of flushing water. Tests have shown that the device can exhibit good sorting performance only when combined with high background field strength and low rotational speed. 7 ultrasonic composite force field weak magnetic separator Chen Bingyan and others introduced the structure, principle and sorting process of ultrasonic composite field magnetic separator. The ultrasonic composite field magnetic separator is mainly composed of magnetic system, ultrasonic generating device, stainless steel round, feeding head, downstream tank and tail. It consists of mine regulating device, flushing water pipe and transmission device. The results of the separation test of vanadium- titanium magnetite in a certain area show that the magnetic separator is a kind of magnetic separation equipment with high precision. When dealing with vanadium-titanium magnetite, it is compatible with the same type of ordinary magnetic separator. Compared with the recovery rate, the concentrate grade can be increased by 1% to 2%. 8 ultrasonic high gradient magnetic separator Chen Zhenfang et al. configured an ultrasound system on a high-gradient magnetic separator to create an ultrasonic high-gradient magnetic separator. By loading the ultrasonic test on the high gradient magnetic separator to explore the influence of ultrasonic frequency and power on the magnetic separation index, the experiment concluded that the low frequency ultrasonic wave can significantly improve the concentrate grade, while the high frequency band effect is not obvious, because the low frequency ultrasonic wave is The stronger the vibration at the same power, the easier the "cavitation" benefit generated during the sorting process, so that the magnetic mineral can be instantly peeled off from the surface of the magnetic medium, thereby enabling the magnetic agglomeration to be enabled, so that the gangue flows into the tailings with the flushing water. The ultrasonic power is not as large as possible, but the optimal value exists. Through a large number of comparative experiments, for the iron ore flotation rare earth tailings (mainly limonite) with 33% of full iron grade, the loading frequency is 28 kHz in the magnetic field, and the output is 28 kHz. The ultrasonic test with a power of 120W was carried out, and the obtained iron concentrate grade reached 46.25%, and the recovery rate was 61.20%. The results showed that the loading of ultrasonic waves in the magnetic field was beneficial to improve the grade of iron concentrate in the case of close recovery. 9 magnetic flotation machine Chang Fuqiang and others introduced a practical type of ore dressing equipment magnetic flotation machine. The flotation device is mainly composed of flotation tank, scraper and magnetic rolling. Magnetic flotation machine at a flotation experiments show that sulfur Yunnan copper ore: it can effectively reduce the content of the magnetite into the copper concentrate, to reduce the amount of lime selected operations, to avoid the deleterious effects of the addition of lime , obtained a good indicator of copper concentrate taste 28.46%, copper recovery rate 97.72%.
Tower Crane cabin is the control center of the crane and is attached to the slewing unit. In order to get to the tower crane cab, the operator must climb a series of ladders within the mast.
The movement of the tower crane is controlled from the operator`s cabin. Within the tower crane cabin, you`ll find the operator`s chair with joystick controller, electronic monitoring devices, and communication systems. Many cabins come with climate control to ensure a comfortable work environment. The Operator Cabin for Tower Crane is part of the slewing assembly. Tower Crane Cab,Tower Crane Cabin Chair,Tower Crane Operator Cabin, Operator Cabin for Tower Crane,Driver's Cabin for Tower Crane SHEN YANG BAOQUAN BUSINESS CO., LTD , https://www.sysuspendedplatform.com
Comprehensive force field equipment, including the combination of magnetic and centrifugal forces, the combination of magnetic and gravity, the combination of magnetic and pulsating flow fields, the combination of gravity and centrifugal force, etc., the purpose is to make full use of the physical properties of the particles (grain size and density, etc.) through the use of comprehensive force fields. The difference is to enhance the sorting accuracy of minerals, and in combination with the combined processes of gravity, re-floating and floating magnetism, the differences in physical and surface chemistry of minerals are used to improve the sorting accuracy of minerals.