CN2907927Y

CN2907927Y - Induced-draught type fanning machine

Info

Publication number: CN2907927Y
Application number: CN 200520037328
Authority: CN
Inventors: 柳小林
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-13
Filing date: 2005-12-13
Publication date: 2007-06-06
Anticipated expiration: 2015-12-13

Abstract

A wind-absorption winnowing machine comprises a rack (1), a shell (3), an air duct (6) in the shell, at least three classifying rooms (5) which are arranged under the air duct passing lengthwise along the direction of the wind and separated by demarcation strips (4) from the front to the back, material outlets which are under the classifying rooms, a wind inlet (8) which is arranged at the front of the whole machine, a material inlet (7) which is positioned at the upper front of the whole machine and a wind absorption machine (2) which is arranged at the rear part. The utility model is characterized in that the material outlets consists of an upper and lower outlets (9, 10) which are the upper material outlet (9) and the lower material outlet (11). The two outlets are provided with a material output wind-blockage machine (10) between. The utility model can be applied in the decontamination and classifying of objects including cereals, traditional Chinese medicine material and tea-leaves. Compared with the prior art, the utility model has the advantages of better air-fast effect at the material outlet,reducing the impact of the principal direction of the air stream in the air duct,ensuring the precision of the winnowing and improving the quality and speed of the winnowing.

Description

The air draught type winnowing machine

Technical field

The utility model relates to a kind of agricultural product processing machinery, is the isolated plant that tealeaves, Chinese medicine, grain etc. is carried out selection by winnowing impurity elimination or classification.

Background technology

Hangzhou tea machine head factory is production and selling air draught type winnowing machine once, tealeaves is carried out stalk-sorting impurity elimination classification, this machine is in the air draught process, the opening wide of discharging opening when the opening wide of charging aperture, discharging during along with charging, the outer air of casing enters air channel in the machine by above-mentioned two open ports, and the principal direction of having impacted air channel air-flow in the machine has been disturbed the selection by winnowing precision to tealeaves, medicinal material, grain (following general designation thing to be selected or selection by winnowing thing), influenced selection by winnowing quality and speed, applying of this machine is obstructed.

The utility model content

At the above-mentioned deficiency of prior art, the purpose of this utility model provides and a kind ofly reduces uncovered ventilatively, makes that air channel air-flow principal direction is hit less in the casing, the selection by winnowing precision is disturbed the air draught type winnowing machine that selection by winnowing quality and speed increase less.

Above-mentioned purpose can realize by following measure: it includes air channel in the frame, casing, casing, below, air channel at least three grading rooms separating with demarcation strip from front to back of flow path direction, the discharging opening of grading room below, the air inlet in complete machine the place ahead, the charging aperture of front upper place, the induced-draught fan at rear with the wind, discharging opening has upper and lower dual discharging opening, be respectively top discharge mouth and lower discharge port, the discharging wind plugging device is arranged between two discharging openings.

Above-mentioned purpose can also be come perfect by following measure: demarcation strip 4 is the movable demarcation strip; The vane type discharging wind plugging device that discharging wind plugging device 10 drives for power.

Description of drawings

Accompanying drawing is the utility model structural representation.

Specific implementation

Also be described in further detail in conjunction with the accompanying drawings with embodiment below the utility model: the air channel 6 that casing 3 crowds around in the accompanying drawing is when induced-draught fan 2 starts, wind enters from air inlet 8, wind flows through in the past backward, the thing to be selected of charging aperture 7 falls into air channel 6 front ends, difference because of grain (sheet) weight in this thing, to gently falling into from front to back respectively in each grading room 5, reach the effect of letter sorting or classification by heavy.The tradition type is because have only single discharging opening, this mouthful opens wide, not stifled wind apparatus, when induced-draught fan 2 one starts, the outer air of casing will inevitably enter from opening wide the discharging opening that does not have stifled wind apparatus, causes ventilatively, has confused air channel 6 air-flow principal directions, break up the just selection by winnowing thing in dropping process, influenced the quality and the speed of selection by winnowing.The application has just done two improvement at this place: the one, discharging opening is made double-deck discharging opening 9 and 11, reduce the inlet of letting in air as far as possible, a discharging wind plugging device 10 is installed between top discharge mouth 9 and lower discharge port 11 again, simply can with one have a spring singly open iron plate, long-pending reopening blanking by the selection by winnowing thing, close by recoil of spring power behind the blanking, to reduce ventilative inlet.The vane type discharging wind plugging device 10 that power drives preferably is installed, with 4 or 6 or 8 blades, the direction in pleasant road 6 or vertically this direction installation all can.The selection by winnowing thing drops on top discharge mouth 9 earlier, leaks on the blade of the discharging wind plugging device 10 that is rotating again, and falls lower discharge port 11 then and connects the thing basket to the outside.Discharging wind plugging device 10 always has two blades vertical with the two side at certain intervals in the time, at this moment play stifled wind effect, all plays the discharging effect during out of plumb.Demarcation strip 4 lower ends are fixed, and the upper end can be made the movable or whole plate 4 of arc as required and do the front and back slip, to adapt to the needs of different selection by winnowing things and different wind-force.

The utility model has the discharging opening of minimizing and lets in air compared to existing technology, makes air channel in the casing Air-flow principal direction is hit less, selection by winnowing precision height, the quality of Effective Raise selection by winnowing and speed excellent The point.

Claims

1, a kind of air draught type winnowing machine, the air channel (6), below, the air channel downstream direction that include in frame (1), casing (3), the casing are used at least three grading rooms (5) of demarcation strip (4) separation, the discharging opening of grading room below, the air inlet (8) in complete machine the place ahead, the charging aperture (7) of front upper place, the induced-draught fan (2) at rear from front to back, it is characterized in that discharging opening has upper and lower dual discharging opening, be respectively top discharge mouth (9) and lower discharge port (11), two discharging openings have discharging wind plugging device (10) between (9,11).

2, air draught type winnowing machine as claimed in claim 1 is characterized in that said demarcation strip (4) is the movable demarcation strip.

3, air draught type winnowing machine as claimed in claim 1 is characterized in that the vane type discharging wind plugging device that said discharging wind plugging device (10) drives for power.