CN2497889Y - Centrifugal airstream powder screener - Google Patents

Abstract

A centrifugal airflow screen machine comprises a motor, a screen frame and a vibration source; the screen machine is characterized in that the screen machine comprises a centrifugal fan and a tubular screen cage, the upper part of the screen machine is provided with a feeding hopper; the centrifugal fan is driven by the motor; a fan, a separator and a vibration powder-collection device are arranged on a machine frame outside the screen machine; the fan is communicated with the screen machine by a powder-pumping pipe; the separator is communicated with the fan; the lower end of the separator is connected with a bin which is internally provided with an air vent pipe communicated with an air return vent pipe; one end of the air return vent pipe is communicated with the feeding hopper while the other end thereof is communicated with an upper cavity of the vibration powder-collection device; a vibrator is arranged on two side plates of a lower cavity of the vibration powder-collection device; the upper cavity and the lower cavity of the vibration powder-collection device are communicated by a plurality of tubular cloth bags. The centrifugal airflow screen machine has the advantages of high screen efficiency and being not limited by fineness of material and moist environment.

Description

Centrifugal air flow powder sieving machine

One, technical field; The utility model belongs to vibrating machine, is specially adapted to the centrifugal air flow powder sieving machine that high fineness dressing sieve divides.

Two, background technology: the present employed sieve that shakes that revolves in the high fine granularity screening operation of industries such as medicine, chemical industry, plastics, building materials, its shortcoming is that screening efficiency is low, when material during than humidity, this equipment can't carry out screening operation.

Three, summary of the invention: technical problem to be solved in the utility model is that a kind of centrifugal air flow powder sieving machine with the high and suitable various high fineness material screenings of screening efficiency is provided.The technical solution of the utility model is such, this centrifugal air flow powder sieving machine includes motor, screen bed base, vibration source, it is characterized in that: in the drum type brake cylinder mould, be provided with a centrifugal fan, the two ends that are the blade of circumference uniform distribution are connected on the muscle of fan board up and down, fan board is fixed on the axle, on the screen(ing) machine shell below the cylinder mould, a base plate is arranged, one storage slag chute is arranged on the base plate, one outer scum pipe of stretching in the screen(ing) machine shell is arranged on the cell wall, being provided with a powder pumping pipe on the screen(ing) machine shell above the base plate chews, axle is provided with in the upper junction plate hole and the spindle socket on the base plate that two bearings place cylinder mould respectively, it is relative with casing motor pulley outward that the lower end of axle is provided with belt pulley, it is relative with feed hopper awl mouth that the upper end is provided with switch-plate, gapped between switch-plate end face and the hopper mouth, on the frame of screen(ing) machine shell one side, be provided with blower fan, separator, the powder device is received in feed bin and vibration, powder pumping pipe on the screen(ing) machine chew and blower fan between have flexible pipe to connect, separator is an awl tube, outside having diffusing airduct, the center of tube stretches in the separator top, the outlet of blower fan is communicated with a side of separator epicoele, separator lower end is communicated with feed bin, the diffusing wind tube outlet of separator is communicated with backwind tube, one end of backwind tube is chewed with the backwind tube of feed hopper and is connected, the other end is communicated with the epicoele that the powder device is received in vibration, be connected for elasticity between the lower chamber that the powder device is received in vibration and the base, its biside plate is provided with vibrator, is communicated with a plurality of tubular cloth bags between upper cavity and the lower chamber.The utility model is owing to adopt the centrifugal blower structure, and material obtains kinetic energy by screen cloth in high velocity air, and therefore, this centrifugal air flow powder sieving machine has the screening efficiency height, and is not subjected to the advantage of the restriction of material fineness and wet environment.

Four, description of drawings: Fig. 1 is a structural representation of the present utility model; Fig. 2 is the A-A cutaway view of Fig. 1; Fig. 3 is the B-B cutaway view of Fig. 1; Fig. 4 is the C-C profile of Fig. 1.Among the figure, 1. the vibration of motor 2. screen(ing) machines 3. screen cloth cages 4. feed hoppers 5. backwind tubes 6. Fan casings 7. separators 8. feed bins 9. screw feeders 10. powder pumping pipes 11. is received powder devices 12. dust settling pockets 13. frames 14. 18. 19. blades of airduct 15. screen(ing) machine seat 16. scum pipes, 17. base plates, 20. support rings, 21. screen clothes, 22. screen(ing) machine shells, 23. air admission holes, 24. material toggling dishes, 25. pipes that loose and is chewed on 26. 29. times fan boards of cylinder mould plate 27. fan boards, 28. support bars, 30. lower net cage plates, 31. powder pumping pipes and chew 32. belt pulleys

Five, the specific embodiment: this centrifugal air flow powder sieving machine includes screen(ing) machine 2, in screen(ing) machine shell 22, be provided with screen cloth cage 3, it has last cylinder mould 26, lower net cage 30 and the support bar 28 that connects thereof, support bar is provided with five support rings 20, screen cloth 21 is fixed on and forms a tubular screen cloth cage 3 on lower net cage plate and the support ring, last lower net cage plate is made of interior ring and outer shroud and the muscle that is connected inner and outer ring respectively, the screen cloth cage is supported on the storage slag nozzle on the base plate 17, one outer scum pipe 16 of stretching in outside the casing 22 is arranged in the storage slag tube, axle 18 places cylinder mould plate 26, dead eye, in the dead eye on lower net cage plate hole and the base plate, the lower end of axle 18 is provided with belt pulley 32, belt places on the belt pulley of belt pulley and motor, the upper end has the cone mouth in a switch-plate 24 and the feed hopper 4 relative, switch-plate 24 with bore between the mouth gapped.In the screen cloth cage centrifugal fan is arranged, it is made of the upper and lower fan board 27,29 and the blade 19 of fixedlying connected with axle 18, fan board is made of the muscle of inside and outside ring flat-plate and the inside and outside ring flat-plate of connection up and down, blade is distributed on the muscle of lower ring plate, have a plurality of air admission holes 23 on the face of cylinder of feed hopper, base plate 17 is fixed on the screen(ing) machine seat 15 of screen(ing) machine 2.On the frame 13 of screen(ing) machine one side, be provided with blower fan 6 and separator 7, powder pumping pipe 10 be connected powder pumping pipe on the screen(ing) machine chew 31 and the following air port of blower fan 6 on, separator is an awl tube, be provided with in it that airduct 14 of loosing is outer stretches in the separator top and be communicated with backwind tube 5, separator top has pipe to chew with blower fan to be communicated with, separator lower end is communicated with feed bin 8, discharging opening place, feed bin lower end is provided with screw feeder 9, on the base of the frame 13 of separator 7 opposite sides, be provided with vibration and receive powder device 11, the upper cavity on its top is communicated with backwind tube 5, be provided with spring between lower chamber and the gantry base, on the biside plate of lower chamber, be provided with vibrator, be provided with a plurality of tubular cloth bags 12 up and down between the cavity, the other end of backwind tube 5 is chewed 25 with the pipe on the feed hopper and is connected.The operation principle of this centrifugal air flow powder sieving machine is that powder is fallen in the space of centrifugal fan from the slit between feed hopper and the switch-plate, mixes with centrifugal flow to form air powder stream.Powder passes through sieve screen apertures under centrifugal action, be deposited in the storage slag tube under the cylinder mould greater than the material slag of sieve aperture, and outside scum pipe is discharged casing, blower fan 6 is extracted out by the powder pumping pipe air powder stream that screen cloth is outer and is sent in the separator, in the annular canister of separator, rotate, its centrifugal force makes powder be deposited in the feed bin along simple wall, and air stream enters in the backwind tube from the airduct that looses, wherein a part enters and becomes the portion of air of centrifugal fan source in the feed hopper, major part enters in the cloth bag of vibration receipts powder device, micropore by cloth bag is diffused in the air, a small amount of powder of wherein being carried secretly is blocked on the cloth bag inwall by cloth bag, because the effect of vibrator, cloth bag is ceaselessly shaken, and powder is shaken fall in the lower chamber.

Claims (1)

1, centrifugal air flow powder sieving machine, it includes motor, screen bed base, vibration source, it is characterized in that: in the drum type brake cylinder mould, be provided with a centrifugal fan, the two ends that are the blade of circumference uniform distribution are connected on the muscle of fan board up and down, fan board is fixed on the axle, on the screen(ing) machine shell below the cylinder mould, a base plate is arranged, one storage slag chute is arranged on the base plate, one outer scum pipe of stretching in the screen(ing) machine shell is arranged on the cell wall, being provided with a powder pumping pipe on the screen(ing) machine shell above the base plate chews, axle is provided with in the upper junction plate hole and the spindle socket on the base plate that two bearings place cylinder mould respectively, it is relative with casing motor pulley outward that the lower end of axle is provided with belt pulley, it is relative with feed hopper awl mouth that the upper end is provided with switch-plate, gapped between switch-plate end face and the hopper mouth, on the frame of screen(ing) machine shell one side, be provided with blower fan, separator, the powder device is received in feed bin and vibration, powder pumping pipe on the screen(ing) machine chew and blower fan between have flexible pipe to connect, separator is an awl tube, outside having diffusing airduct, the center of tube stretches in the separator top, the outlet of blower fan is communicated with a side of separator epicoele, separator lower end is communicated with feed bin, the diffusing wind tube outlet of separator is communicated with backwind tube, one end of backwind tube is chewed with the backwind tube of feed hopper and is connected, the other end is communicated with the epicoele that the powder device is received in vibration, be connected for elasticity between the lower chamber that the powder device is received in vibration and the base, its biside plate is provided with vibrator, is communicated with a plurality of tubular cloth bags between upper cavity and the lower chamber.

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