CN2274103Y

CN2274103Y - High-precision multi-stage serial rotating-vibrating sieve

Info

Publication number: CN2274103Y
Application number: CN 96228430
Authority: CN
Inventors: 毕研明; 刘殿东
Original assignee: MUDAN POWDER-SCREENING FACTORY JUYE COUNTY SHANDONG PROV
Current assignee: MUDAN POWDER-SCREENING FACTORY JUYE COUNTY SHANDONG PROV
Priority date: 1996-07-31
Filing date: 1996-07-31
Publication date: 1998-02-11
Anticipated expiration: 2006-07-31

Abstract

The utility model relates to a screen device, an upper part of a base can be made into a multi-layer screen frame by making use of a vibrator transmission part of a screen mesh structure under a base of existing rotating oscillating screens. The top of an upper layer screen frame is provided with a material feeding opening, the lower part of the screen mesh on each layer of screen frame is provided with a screen bottom, and material discharging openings are respectively arranged on the upper part of the screen mesh of each layer of the screen frame and the upper part of the screen bottom. A material back tray is arranged under the screen bottom, an opening is arranged on the material back tray, and a screen mesh which is the same as the upper layer is arranged under the material back tray, a screen bottom is also arranged under the screen mesh, and a material collecting opening is arranged on the upper part of the material back tray. The utility model has the advantages of high screening precision, reasonable structure, stable operation, low equipment investment and high production efficiency, and the utility model reaches production standard.

Description

The high accuracy multi-level series revolves the sieve that shakes

The utility model relates to a kind of screening plant.

The existing sieve that shakes that revolves, according to requirement to material, according to various criterion, the different screen cloth of selection, be installed on each layer screen frame, mixed material is sieved into the particle of various criterion, its operation principle is to utilize common electric machine to be used as power, by soft drive mechanism, drive two eccentric blocks (weight) rotation on the oscillator axle, make screen(ing) machine produce compound motion, to reach the purpose of material screening.Because weight can be regulated, and the lower heavy punch relative position is constantly changed, thereby change the size of vibration force and centrifugal force, like this, can adjust weight, change exciting force, reach the screening purpose according to the difference of material.That this equipment has is totally-enclosed, running steadily, advantages of simple structure and simple but to exist screening precision not high, for the higher material screening of required precision, can not disposable fines in the mixed material be sieved out on request, can only rely on a screen(ing) machine to carry out repeatedly repeatedly, or can reach requirement to utilizing identical screen cloth to sieve repeatedly just with a kind of material with many screen(ing) machines, so just increase the investment and the floor space of equipment, wasted manpower and materials, reduced production efficiency.

The purpose of this utility model is to remedy the deficiencies in the prior art, provide a kind of available same to revolve the sieve that shakes and disposablely feed in raw material, utilize the multilayer screen cloth of same specification that material is sieved repeatedly, and the screening precision height, simple and reasonable, turn round stably that the high accuracy multi-level series revolves the sieve that shakes.

The purpose of this utility model is to adopt following technical measures to realize:

Utilize existing base bottom oscillator running part and the mesh structure that revolves the sieve that shakes, the multilayer screen frame is made on base top, be provided with charging aperture at the upper sieve arch, be provided with the sieve end in the bottom of every layer of screen frame screen cloth, its mesh structure is same as the prior art, is provided with a discharging opening on the screen cloth top and the sieve top, the end of every layer of screen frame, face is provided with a feed back dish under sieve, on the feed back dish opening is arranged, below the feed back dish, be provided with the screen cloth with the upper strata identical standard, also be provided with the sieve end below the screen cloth.Top at the feed back dish is provided with material receiving port.The coarse fodder that ground floor is sieved get off carries out the screening second time by the second layer that material receiving port enters screen frame, can require establish the identical screen frame of sandwich construction same screens specification according to accuracy standard, carries out the screening of repeated multiple times, to reach accuracy standard.

The utility model can be on same screening machine once property feed in raw material, utilize the multilayer screen cloth of same specification to carry out the repeated multiple times screening, have screening precision height, rational in infrastructure, running steadily, use manpower and material resources sparingly, reduced advantage such as floor space, thereby improved production efficiency.After sieving result of laboratory test relatively, utilize the original equipment screening to make containing fines in the coarse fodder is 30%, utilizes to contain fines in coarse fodder of the utility model screening and have only 10-15%, reaches production standard.

Below be description of drawings:

Fig. 1 is the utility model structural representation.

Fig. 2 is a screen frame structural representation in the utility model.

Wherein, 1. sieve is fastened, 2. motor, 3. soft drive plate, 4. flat belt, 5. platen, 6. lower heavy punch, 7. angle scale, 8. oscillator shell, 9. gusset, 10. briquetting, 11. oscillator tubes, 12. spring, 13. oil pipes, 14. oil nozzles, 15. finished product material discharging openings, 16. at the bottom of the sieve, 17. locking belts, 18. feed back dishes, 19. finished product material discharging openings, 20. at the bottom of the top sieve, 21. press down net circle, press the net circle, 23. screen clothes on 22., 24. bounder, 25. sieve lids, 26. charging apertures, 27. screen frames, 28. semi-finished product coarse fodder discharging opening, 29. material receiving ports, 30. coarse fodder discharging openings, 31. pallets, 32. last weight, 33. sieve castors, 34. upper end covers, 35. bottom end cover, 36. upper backup pads, 37. lower supporting plates.

The utility model is described in further detail below in conjunction with accompanying drawing:

Embodiment: structure of the present utility model as depicted in figs. 1 and 2, utilize the existing sieve base running part that shakes that revolves, oscillator and mesh structure, two layers of screen frame are made on base top, screen frame 27 tops are charging apertures 26, at the bottom of top sieve is arranged at screen cloth 23 bottoms of upper strata screen frame 27 20, be provided with semi-finished product coarse fodder discharging opening 28 on the top of screen cloth, be provided with finished product material discharging opening 19 on sieve top, the end, in following one deck screen frame of 20 bottoms at the bottom of the top sieve, be provided with the screen cloth 33 identical with the screen cloth specification of upper strata screen frame, being provided with V-arrangement shape bottom on the top of screen cloth has the feed back dish 18 of opening, be provided with a coarse fodder material receiving port 29 on the top of feed back dish 18, establish a coarse fodder discharging opening 30 in feed back dish 18 bottoms, be provided with finished product material discharging opening 15 on the top of sieving the end 16 down.Mixed material adopts the secondary screening during use, the course of work is as follows: start electrical convertors and generators drive the oscillator axle by soft driving-belt 4 two weights 32 up and down, 6 rotations, produce vibration, the power of shaking is passed to screen frame 27 by briquetting 10, make the top screen frame produce the vibration of making vertical and horizontal direction, from charging aperture 26, drop into mixed material, material is beated on screen cloth on one side, outward turning on one side, fines is under the effect of power of shaking and bounder elastic force, enter at the bottom of the top sieve 20 by screen cloth 23, from finished product material discharging opening 19, flow out, after coarse fodder comes out from semi-finished product coarse fodder discharging opening 28, enter in the feed back dish 18 by material receiving port 29, flow to second layer screen cloth and carry out the screening second time under the effect of feed back dish, fines flows out along finished product material discharging opening 15 by screen cloth, and coarse fodder flows out along coarse fodder discharging opening 30.So just reached the purpose of secondary screening, fineness reaches 10%.

Claims

1. a high accuracy multi-level series revolves the sieve that shakes, it is characterized in that, utilize existing base bottom oscillator running part and the mesh structure that revolves the sieve that shakes, the multilayer screen frame is made on base top, be provided with charging aperture at the upper sieve arch, be provided with the sieve end in the bottom of every layer of screen frame screen cloth, its mesh structure is same as the prior art, screen cloth top and sieve top, the end at every layer of screen frame are provided with a discharging opening, face is provided with a feed back dish under sieve, on the feed back dish opening is arranged, and is provided with the screen cloth with the upper strata identical standard below the feed back dish, also be provided with the sieve end below the screen cloth, be provided with material receiving port on the top of feed back dish.