CN2204660Y - Impurities removing machine by specific weight - Google Patents

Abstract

The utility model provides an impurity removing device by specific weight for grain. Compared with the existing sucking type impurity removing machine by specific weight for grain, one layer of impurity removing screen surface is added, and two layers of impurity removing screen surfaces are connected as one unit and connected in series to remove impurities twice. In addition, the two layers of impurity removing screen surfaces share one set of air inflowing and driving device. When air volume of air inflowing is unchanged and air pressure is increased, impurity removing rate reaches to more than 99%. According to different sizes of machines, grain processing quantity is from 2 t/h to 20 t/h. The utility model can be used for grain barns which only need to remove impurity. Thus, the floor space is saved, the cleaning process is simplified and quality of finished product of grain is ensured.

Description

Impurities removing machine by specific weight

The utility model relates to a kind of grain and removes the stone device.This device secondary of connecting in a machine removes stone, more effectively removes the stone in the grains such as paddy, wheat.

The stone device that goes in the existing grain cleaning equipment has suction formula or pressure-type dry stoner, these go in the stone device grain only through once removing stone, meet acquisition criteria below 0.5% when containing inorganic impurity in the grain, under the normal operation, once go stone efficient can reach 95～98% because to contain the stone amount in the country practical purchase grain higher, and operation stone remover efficient is on the low side, and processing factory generally all installs two road stone remover series connection and uses to guarantee that sand content does not exceed standard in the finished product of grain.Like this, just increased plant area, material promotes and personnel, brings technological process long, power consumption increase and invest big disadvantage.

The purpose of this utility model is that a kind of follow-on suction formula specific-gravity stoner will be provided, one facility have the series connection secondary to go the stone function, gross efficiency is reached more than 99%, guaranteed that effectively sand content is no more than state-set standard in the finished product of grain, simplified clean-up process simultaneously.

The utility model is achieved in that raw grain is earlier through cleaning, remove big small impurities, enter this device then, grain is by lower middle part Fig. 2 a(or side Fig. 2 b) enter the ground floor compass screen surface, progressively classification of fluidization under motor oscillating and wind-force effect, heavy grain and stone sink, lightweight grain come-up, 1/3 place separates material to the middle part, and grain begins to flow to the ground floor compass screen surface downwards along the compass screen surface inclination angle and exports, and stone is climb to removing the stone mouth.The grain of ground floor compass screen surface outlet, enter second layer compass screen surface lower middle part Fig. 2 a(or side Fig. 2 b through deflector), equally under the effect of vibration and wind-force, another isolates stone to the outlet that crawls toward of inclination compass screen surface top, grain then glides from sieve middle part 1/3, row is clean grain to second layer sieve outlet, the stone of upwards creeping on above-mentioned two layers of crimped wire woven mess, to the exit, can regulate back draught, contain grain in the blowback stone, export and be pure stone.

The utility model only needs to set up one deck crimped wire woven mess and corresponding deflector under former suction formula specific-gravity stoner, shared original transmission device and bearing support, and do not increase air quantity, just realized that machine series connection secondary goes the stone function.

Output of the present utility model is pressed the big I of type and is handled grain 2 to 20t/h.

Below with reference to accompanying drawing structure of the present utility model is described in detail.

Fig. 1 is profile of the present utility model, and Fig. 2 is compass screen surface flow direction of material figure.Raw grain is flowed into middle part Fig. 2 a(or side Fig. 2 b of stone remover ground floor compass screen surface (4) lower through pressure door (2) deflector (3) by feed pipe (1)).Progressively classification of fluidization under motor oscillating and wind-force effect, heavy grain and stone sink, lightweight grain come-up, material is about 1/3 place to the middle part, and grain begins to export (5) along flowing to the ground floor compass screen surface under the compass screen surface inclination angle, and stone is climb to outlet (17).The grain of ground floor compass screen surface outlet, through deflector (6), enter second layer compass screen surface (7) lower middle part Fig. 2 a(or lower one side Fig. 2 b), equally under vibration and wind-force effect, another separates stone, stone is to the outlet (15) that crawls toward of top, inclination angle, and grain then glides from compass screen surface middle part 1/3, and row enters clean grain bucket (9) to second layer compass screen surface outlet (8).The stone of climbing on above-mentioned layer crimped wire woven mess can be regulated back draught plate (16) (18) blowback to exit separately and go stone to contain grain, and stone is expelled to collection bucket.The compass screen surface material is stainless steel wire mesh grid or fish scale punched-plate, and 7 °～8 ° of compass screen surface angles are adjustable.

(22) are the inlet scoop among Fig. 1, and (21) are the adjusting valve door, and (19) are suspended hood, and (20) are the air channel, and air-flow is entered by second layer compass screen surface (7) bottom, by second layer compass screen surface (4), and the gently assorted and dust through the sucking-off of inlet scoop, air channel.

(14) for can regulate back supporting rod, (13) are frame among Fig. 1, and (12) are front support bracket, and (10) (11) are vibrating motor and pedestal.(23) be support, supporting inlet scoop and feed pipe, whole sieve nest double vibrations in supporting during motor oscillating, per minute kind frequency 940 times, amplitude is that the 4-5 millimeter is adjustable.

Fig. 2 flows to schematic diagram for the compass screen surface feed separation, and two layers of compass screen surface are except that grain import department has any different, and all the other are identical.The model material that output is big enters Fig. 2 a by the middle part, and the stone remover of little output enters Fig. 2 b from the side.(24) stone outlet among the figure, (25) test zone, (26) Disengagement zone, (27) stone moving line, (28) grain-export, (29) are pre-subregion, (30) last Disengagement zone, (31) grain moving line, when the pre-subregion of second layer compass screen surface, grain stream is to shown in (32) arrow among the figure by outlet (28) row for ground floor compass screen surface grain.

The utility model series connection secondary removes stone, operates containing under the higher situation of stone amount, and the removing stone efficient and can reach more than 90% of every layer of compass screen surface, complete machine goes stone efficient can reach more than 99% stable performance.

Claims (2)

1, a kind of secondary of connecting removes the specific-gravity stoner of stone, by feed pipe (1) to (3), compass screen surface (4) is to (7), back supporting (12) to (14) and vibrating motor (10), (11) composition can be regulated in inlet scoop (21) (22), it is characterized in that the bottom of feed pipe (1) at two layers of screen angle, (4) be the ground floor crimped wire woven mess, (7) be second layer compass screen surface, sieve nest case bottom is support, frame (12), (13), (14), and its feed end is equipped with vibrating motor (10).

2, according to claim 1, the described stone device that goes, it is characterized in that the outlet of ground floor compass screen surface, be connected by the side of deflector (6) with second layer compass screen surface (7) inclination lower middle part or lower, a suspended hood (19), inlet scoop (22) and control valve (21) are arranged at two layers of compass screen surface top.