一种用于粮食筛分的垂直分离装置
By integrating a slag-blocking component, a slag-removing component, and a self-weight conveyor belt into a vertical separation device, the problems of low efficiency in multi-stage impurity separation, poor air volume adjustment flexibility, and difficult maintenance in grain screening equipment have been solved. This has enabled efficient classification and removal of impurities and convenient cleaning, thereby improving grading accuracy and economy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI YEWEI OILS GRP MACHINERY
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-17
AI Technical Summary
Existing grain screening equipment suffers from problems such as low efficiency in multi-stage impurity separation, poor flexibility in air volume adjustment, insufficient stability in feed interception and transmission, and difficulty in maintenance and cleaning, resulting in insufficient grading accuracy and poor economic efficiency.
A vertical separation device was designed, integrating a slag-blocking component, a slag-extraction component, a corrugated pipe, and a self-weight conveyor belt. Through the dynamic adjustment of the air volume regulating component and the slag-blocking component, the three types of impurities can be classified and removed. Combined with the convenient cleaning of the sliding door and the manual slag-removing door, the pipe blockage is avoided.
It achieves efficient classification and removal of three types of impurities, ensures stable suction efficiency of light impurities, accurately intercepts large particle impurities, prevents grain transport blockage, simplifies the maintenance process, and improves grading accuracy and economy.
Smart Images
Figure CN224507676U_ABST
Abstract
Claims
1. A vertical separation device for grain sizing, characterized in that, The system includes a cleaning box (1), which has an inlet (11) on one side, a conical outlet (12) at the bottom, and a conical impurity extraction channel (13) at the top. The upper port of the impurity extraction channel (13) is fixedly connected to the lower port of the slag extraction assembly (2) via a transition flange (14). The top of the cleaning box (1) is equipped with an air volume regulating assembly (3), which is connected to the impurity extraction channel (13). A slag-blocking assembly (4) is provided at the inlet (11). The bottom of the cleaning box (1) is equipped with an inclined self-weight conveyor belt (5), the lower end of which extends above the conical outlet (12). The cleaning box (1) has an openable sliding door (17) on the other side relative to the inlet (11), and a corrugated pipe (18) for discharging medium impurities is connected to one side of the impurity extraction channel (13).
2. A vertical separation apparatus for grain sizing according to claim 1, wherein, The slag extraction assembly (2) includes a vertically arranged axial flow fan box (21). The bottom of the axial flow fan box (21) is fixedly connected to the transition flange (14) by bolts, and a rubber sealing gasket is sandwiched between the axial flow fan box (21) and the transition flange (14). A fan box shaft (22) is rotatably arranged inside the axial flow fan box (21) through a bearing. Several arc-shaped blades (23) are evenly distributed and fixed on the fan box shaft (22) along the circumference. The bending direction of the blades (23) is the same as that of the fan box shaft (22). The rotation direction of the axial flow fan box (21) is consistent with that of the axial flow motor (24) which is fixedly connected to the top of the axial flow fan box (21) by bolts. The output shaft of the axial flow motor (24) is connected to the fan box shaft (22) by a flexible pin coupling (242). A slag discharge port (25) is provided on the upper part of the side wall of the axial flow fan box (21). A manual slag cleaning door (26) is hinged to the outside of the slag discharge port (25). The manual slag cleaning door (26) is detachably connected to the axial flow fan box (21) by a buckle (261).
3. A vertical separation apparatus for grain sizing according to claim 1, wherein, The air volume adjustment component (3) includes support bearings (31) fixed to the two inner walls of the impurity removal box (1), and an exhaust shaft (32) is rotatably connected between the two support bearings (31); a U-shaped baffle (33) is fixedly sleeved on the exhaust shaft (32), and the opening direction of the U-shaped baffle (33) is consistent with the suction direction of the impurity removal channel (13); an adjustment groove (331) is opened on the side of the U-shaped baffle (33), and an adjustment pin (34) is slidably connected in the adjustment groove (331); an arc-shaped hole (15) is opened on the outer wall of the impurity removal box (1), and the end of the adjustment pin (34) away from the U-shaped baffle (33) passes through the arc-shaped hole (15) and is detachably connected to the arc-shaped hole (15); by adjusting the position of the adjustment pin (34) in the arc-shaped hole (15), the tilt angle of the U-shaped baffle (33) can be changed, thereby adjusting the effective ventilation area of the impurity removal channel (13).
4. A vertical separation apparatus for grain sizing according to claim 1, wherein, The slag-blocking assembly (4) includes fixing pins (41) fixed to the two inner side walls of the impurity removal box (1), and a shielding cloth (43) is fixedly connected between the two fixing pins (41); a vertical adjustment hole (16) is provided on the side wall of the impurity removal box (1), and a height adjustment shaft (42) is rotatably connected in the vertical adjustment hole (16), and the surface of the height adjustment shaft (42) is connected to the middle of the shielding cloth (43); by rotating the height adjustment shaft (42), the drooping height of the shielding cloth (43) can be adjusted to intercept large particle impurities at the feed inlet (11).
5. A vertical separation apparatus for grain sizing according to claim 1, wherein, The self-weight conveyor belt (5) includes an inclined fixed bracket (51) fixed to the bottom plate of the impurity removal box (1), and the two ends of the inclined fixed bracket (51) are respectively rotatably connected to the conveyor shaft (52); a buffer belt (53) is sleeved between the two conveyor shafts (52), and the surface of the buffer belt (53) is provided with anti-slip texture (531); a reinforcing rib (511) is fixedly connected between the bottom of the inclined fixed bracket (51) and the bottom plate of the impurity removal box (1).
6. A vertical separation apparatus for grain sizing according to claim 1, wherein, The top and bottom of the sliding door (17) are connected to the cleaning box (1) via guide rails, and a door handle (171) is fixedly connected to the sliding door (17).
7. A vertical separation apparatus for grain sizing according to claim 2, wherein, The transition flange (14) is fixedly connected to the top of the impurity removal box (1) by bolts, and the transition flange (14) is sealed to the bottom of the axial flow fan box (21) by a sealing ring.
8. A vertical separation apparatus for grain sizing according to claim 3, wherein, The adjusting pin (34) is fixedly connected to an operating handle (341) at the end away from the U-shaped windshield (33). The outer diameter of the operating handle (341) is greater than the width of the arc-shaped hole (15). The adjusting pin (34) and the arc-shaped hole (15) are connected by threads.
9. A vertical separation apparatus for grain sizing according to claim 1, wherein, The corrugated pipe (18) is fixedly connected to the impurity extraction channel (13) by a flange, and the corrugated pipe (18) is a metal corrugated hose.