CN1398677A - Centrifugal filter - Google Patents

Abstract

A centrifugal filter includes frame, casing, motor and rotors with built-in spiral plate. It features the rotors uniformly distributed on the circumference with the main sahft as circle center, material distributing disc fixed onto the upper end of the main shaft with lower material discharging pipes set respectively in the rotors, a gear arranged on the main shaft meshes with a gear on the middle shaft, another gear on the middle sahft meshes with a gear on one hollow sahft, and an other gear on the hollow shaft meshed with a gear in the lower end of the rotor shaft. Owing to the hollow shaft, the rotors are driven by a motor to rotate and revolve, and this results in simple structure, easy manufacture, smooth operation and energy saving.

Description

A kind of filter centrifugal

One, technical field: the invention belongs to filtering technique, particularly a kind of filter centrifugal.

Two, background technology: existing filter centrifugal is used for handling and contains the liquid material; liquid and feed separation are opened; for material particles hour; the circumference of rotor needs tiny material to be separated from water with filter cloth, because rotating speed is higher, its centrifugal force is close to tiny material on the filter cloth; can not filter thereby filter opening is blocked; adopt to shut down artificial the removing in the past, and perhaps removed, but it is undesirable and damage filter cloth easily to remove effect with scraper plate.In order to address this problem, China Patent No. is 95120702.4 to disclose a kind of the automatic filter centrifugal of filter drum formula of helical baffle " band " technology, it adopts motor-driven main shaft that each filter drum is rotated at a high speed to carry out centrifugal filtration, being provided with auxiliary-motor on the low bottom-disc of main shaft drives drives each filter drum respectively and does the low speed rotation, filter drum is towards the part at center, the centrifugal action that revolved round the sun, the material on the filter cloth so just can be guaranteed efficiently to carry out without a break filtration operation by flake-off.Thisly drive filter drum respectively with auxiliary-motor and make the shortcoming of the structure of rotation and be, at first the revolution rotating speed of filter drum is higher, generally to reach hundreds of commentaries on classics above/minute, its centrifugal force is quite big, produce unbalance dynamic, cause auxiliary-motor instantaneous stall phenomenon to occur, cause motor to be burnt, next complex structure, power consumption is big.Once proposed in the above-mentioned patent to be driven by the kinetic energy switching mechanism between axis, support and the filter drum rotating shaft, this is a problem, and does not provide concrete and feasible technical scheme.

Three, summary of the invention: technical problem to be solved by this invention is only to make rotor make revolution and low speed rotation and filter centrifugal simple in structure at a high speed simultaneously with a motor.Technical scheme of the present invention is such, it comprise frame, casing, motor, in the rotor of spiral plate is arranged, it is characterized in that: it is on the circumference in the center of circle that rotor is distributed on the main shaft, the bottom discharge pipe that is fixed on the material separating disc of main shaft upper end places respectively in each rotor, be provided with the gears engaged of a gear and jackshaft by motor-driven main shaft, another gear of jackshaft and the engagement of the cannon pinion on the main shaft, another gear on this hollow shaft is meshed with the gear of each armature spindle lower end respectively.The present invention revolve round the sun and rotation with a motor-driven rotor by the transmission realization of gear train, thereby the present invention compared with prior art has simple in structure significantly, easy to manufacture and energy-saving advantages owing to overlapped a hollow shaft on main shaft.

Four, description of drawings: Fig. 1 is a structural representation of the present invention.Among the figure, 1. base 2. motors 3. lower rotary tables 4. casings 5. rotors 6. armature spindles 7. material separating disc discharge nozzles 8. material separating discs 9. loam cakes 10. main shafts 11. feed pipes 12. top rotary tables 13. hollow shafts 14. bearing blocks 15. blanking ports 16. scraper plates 17. liquid outlets 18. discharging openings

Five, the specific embodiment: filter centrifugal of the present invention includes a base 1, be fixed with motor 2 on it, gear-box and casing 4, be fixedly connected with top rotary table 12 and lower rotary table 3 on the main shaft 10, between last lower rotary table, be uniform four rotors 5 in center with the main shaft, the circumference of rotor is provided with interior protecting wire net from the inside to the outside successively, filter cloth, outer protecting wire net, armature spindle 6 is provided with spiral plate, armature spindle is rotatably assorted last, on the lower rotary table, on top rotary table, be provided with annular material separating disc 8, feed pipe 11 places in the mouth of material separating disc by loam cake 9, the bottom of material separating disc is provided with four material separating disc discharge nozzles 7 and places respectively in four rotors, on the lower rotary table relative 3, be provided with blanking port 15 with rotor, be provided with the scraper plate 16 that is connected on the lower rotary table in the blanking port, have discharging opening 18 on the lower shoe of casing, be provided with liquid outlet 17 in the bottom of casing.Above base, be provided with a gear-box, the gear and the countershaft-gear engagement of main shaft 10 are arranged in it, be with a hollow shaft 13 on the main shaft and place the interior bearing block 14 of gear-box, gear on the hollow shaft and another gears engaged of jackshaft, the gear of hollow shaft top respectively with four armature spindles 6 on gears engaged.

Operation principle of the present invention is, motor 2 rotates by belt drives main shaft 10, at this moment, last lower rotary table, material separating disc and four rotor high-speed revolution are rotated, the feed pipe 11 of the liquid that contains solid-phase material by loam cake 9 enters each rotor 5 from the discharge nozzle 7 of material separating disc 8, under centrifugal action, the liquid that does not contain material is thrown out of from the hole of filter cloth, outside liquid outlet outflow machine, by filter cloth interception stay in the rotor solid-phase material along spiral plate fall and the scraper plate that is rotated outside discharging opening 18 discharge machines, gear on the main shaft drives hollow shaft by countershaft-gear and rotates, the gear of hollow shaft drives four armature spindles simultaneously and does low speed rotation rotation, the material bed centrifugal force that is constantly produced by revolution on each rotor filter cloth is got rid of, realized the purpose that high efficiency is filtered.The present invention only needs a motor, not only has energy-saving effect, and simple in structure, easy to manufacture, and running is steadily reliable, changes the filter cloth in the rotor into screen cloth and can carry out the wet screening operation.

Claims (1)

1, a kind of filter centrifugal, it comprise frame, casing, motor, in the rotor of spiral plate is arranged, it is characterized in that: it is on the circumference in the center of circle that rotor is distributed on the main shaft, the bottom discharge pipe that is fixed on the material separating disc of main shaft upper end places respectively in each rotor, be provided with the gears engaged of a gear and jackshaft by motor-driven main shaft, another gear of jackshaft and the engagement of the cannon pinion on the main shaft, another gear on this hollow shaft is meshed with the gear of each armature spindle lower end respectively.

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