Vibrating screen ore-feeding device

Abstract

The invention relates to a vibrating screen ore-feeding device which is characterized in that the vibrating screen ore-feeding device comprises a totally enclosed cylindrical box; a sealing cover is arranged above a cylindrical box; triangle lifting holes are formed on bilateral sides of the sealing cover and a spray-proof sealing door and an ore-feeding pipe are arranged in the center of the sealing cover; the middle of the cylindrical box is provided with a buffering ore pulp feeding center cylinder and an ore discharging hole is formed on the lateral wall of a center cylinder; the inner wall of the cylindrical box, the bottom of the cylindrical box, the inner wall of a center cylinder and the outer wall of a center cylinder are respectively provided with a wear-resistant plate; the outer side of a center cylinder is provided with 2N ore separating plates which separate the cylindrical box into N ore separating areas and N ore discharging areas, the lower portion of every ore discharging area is provided with an ore discharging pipe, and an outlet of the external end of every ore discharging pipe is arranged into a fan shape; a wear-resistant composite ore-feeding ball valve is arranged above every ore discharging pipe and an adjusting screw rod, an adjusting nut and a hand wheel are connected above every ore-feeding ball valve; and eight trapezoidal reinforcing-rib plates are uniformly arranged outside the cylindrical box along a periphery. The vibrating screen ore-feeding device has the advantages of achieving the uniform ore-feeding operation, improving the screening efficiency, being capable of automatically adjusting the flow of ore pulp and good in wear resistance and extending the service life.

Description

technical field [0001] The invention relates to a vibrating screen ore feeding device, which belongs to the field of mine beneficiation machinery. Background technique [0002] Taigang Ekou Iron Mine uses 13 sets of Derrick 2SG48-60W-5STK five-way high-frequency vibrating screens imported from the United States (hereinafter referred to as imported vibrating screens, 2 means double vibrator, SG means super cracity strong vibration, exciting force 7.3g, W Indicates wet sieve, 5 indicates five-way, STK indicates stack overlap), classifies iron ore slurry with a particle size of 0-0.5 mm and a concentration of 35%-45%, with a processing capacity of 100-120t / h, using a stainless steel sieve Net, with a sieve size of 0.075×0.075mm, is the "throat" equipment for iron ore slurry classification. The qualified products under the screen enter the next process of magnetic separation, and the unqualified iron ore powder on the screen enters the ball mill for regrinding, so automatically ...

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Problems solved by technology

[0003] Defects of the original imported vibrating screen feeding device: (1) In the process of use, the original imported vibrating screen frequently has problems such as large fluctuations in ore feeding, uneven feeding, low classification efficiency, and large machine vibration; The ore feeding box only uses five holes on the side of the rectangular ore feeding box for simple ore feeding, without adjusting the screw rod, it can neither achieve uniform ore feeding, nor can it adjust the size of the ore feeding flow, causing the imported vibrating screen to receive ore in five channels. Different, low classification efficiency, uneven load, large machine vibration and other problems; (3) The fatal disadvantage of the original rectangular ore feeding box is that it cannot control the size of the ore feeding flow, and cannot realize central ore feeding and uniform ore output. During the process, there are often problems such as uneven feeding of ore pulp, large fluctuations in ore output, short service life, large space occupation, and ore leakage. Moreover, problems such as low classification efficiency of imported vibrating screens, uneven loads, and large machine vibrations are caused.

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