A large vibrating screen for coal classification
A vibrating screen, large-scale technology, applied in the direction of filter screen, solid separation, grille, etc., can solve problems such as unfavorable large-scale and serial development of screen machines, and achieve the effect of high rigidity, high strength and rigidity, and long service life.
Active Publication Date: 2017-02-22
TIANDI (TANGSHAN) MINING TECH CO LTD
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Problems solved by technology
However, the exciter adopts an eccentric shaft and eccentric flywheel structure, which is not conducive to the large-scale and serialized development of the screen machine
Method used
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[0020] The present invention consists of a screen box 1, a box-type vibrator 2, a transmission device 3 and a support 4.
[0021] figure 1 It is shown that the screen box 1 is composed of side plates 5, lifting beams 6, driving beams 7, reinforcing beams 8, feeding beams 9, beams 10, sieve plates 11 and other components to form a spatial network structure.
[0022] figure 2 , 3 It shows that the side plate 5 is composed of main board 12, front reinforcing angle steel 13, main reinforcing plate 14, rear reinforcing angle steel 15, feeding end reinforcing angle steel 16, lower reinforcing angle steel 17, beam reinforcing plate 18, connecting plate 19, and discharging end reinforcing angle steel 20, the upper reinforced angle steel 21 and other components. The main board 12 adopts a whole piece of steel plate blanking. The feeding end reinforcement angle steel 16, the lower reinforcement angle steel 17, the discharge end reinforcement angle steel 20, the upper reinforcement ...
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The invention provides a large vibration screen for grading coal carbon, belongs to the technical field of vibration screen equipment, and aims at improving the strength and rigidity of the large vibration screen for grading the coal carbon. The large vibration screen for grading the coal carbon is that reinforcing angle steel, a reinforcing plate and other parts are reasonably arranged on a screen box to form a force-closure type spatial net-shaped hyperstatic structure. The screening device has the advantages of being high in strength, large in rigidity, and long in service life of a screen plate; the strength and rigidity of the screening box can be increased 1.3 to 1.5 times under the same parametric vibration quality, and meanwhile, the parametric vibration of the screening machine can be reduced by 20 to 30%, which is beneficial for the grading of large coal carbon; meshes in the screening plate are of opened heavy structures and are arranged into a three-dimensional cantilever beam structure, so that the materials can be loosened to pass through the screen; the screen machine is equipped with a modular box type vibration exciter for vibration exciting; the quantity of proper vibration exciters is selected according to the model of the screening machine and the vibration exciting force of the box type vibration exciter, which is beneficial for the enlarging and serial development of the screening machine.
Description
technical field [0001] The invention relates to a large vibrating screen with high strength and rigidity that can be used for coal classification, and belongs to the technical field of vibrating screen equipment. Background technique [0002] At present, the vibrating screens used for coal screening are gradually developing in the direction of large-scale and super-large, and the market demand for large-scale grading screens with a processing capacity of thousands of tons per hour is increasing. The width of the vibrating screen is the key factor determining the processing capacity, therefore, in a sense, the enlargement of the vibrating screen is also the enlargement of the width of the screen machine. It can be seen from the knowledge of mechanics that if the width of the screen machine is doubled, the dynamic stress of the screen machine beams, side plates, drive beams and other components will increase several times during work. higher requirements. However, currently ...
Claims
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IPC IPC(8): B07B1/28B07B1/42B07B1/46
CPCB07B1/28B07B1/42B07B1/44B07B1/4609B07B1/4618
Inventor 吕高常孙旖朱文博姜家山马志好鲍玉新赵环帅杨秀秀陈思元张彬秦玮田明旸
Owner TIANDI (TANGSHAN) MINING TECH CO LTD