一种玉米杂质筛分装置
By combining screening steps and negative pressure channels, the problem of incomplete screening caused by corn impurities sticking together is solved, achieving more efficient removal of corn impurities.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGAN HUAXIN AGRI TECH CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, corn impurity screening devices are prone to sticking together due to corn silk and other factors during the screening process, resulting in poor airflow screening effect and inability to effectively remove impurities.
Adopting a screening stepped structure combined with a negative pressure channel design, the inclined steps and adsorption port design utilize negative pressure airflow to break up and adsorb corn impurities stuck together multiple times, achieving more thorough screening.
It significantly improves the screening effect of corn impurities, ensuring that impurities are completely removed and improving screening efficiency and effectiveness.
Smart Images
Figure CN224507645U_ABST
Abstract
Claims
1. A corn impurity screening device characterized by, Includes screening steps (1) and negative pressure channels; The upper end of the screening step (1) is the feed inlet (2), and the lower end of the screening step (1) is the discharge outlet (3). The outer ends of the treads of each step of the screening ladder (1) are respectively inclined downwards; Each step of the screening ladder (1) is provided with an adsorption port (4), and the air inlet of the negative pressure channel is connected to the adsorption port (4).
2. A corn impurity screening device according to claim 1, characterized in that: The negative pressure channel includes a main channel (6) and branch channels (5). A negative pressure fan (7) is installed in the main channel (6). The air inlet of the main channel (6) is connected to the air outlet of each of the branch channels (5). The air inlets of the branch channels (5) are respectively connected to the adsorption port (4).
3. A corn impurity screening device according to claim 2, wherein: The tread of each step of the screening ladder (1) is a plate extending backward, and the space between adjacent plates forms the branch channel (5).
4. A corn impurity screening device according to claim 2, wherein: The upwind section of the main road passage (6) is equipped with a removable filter (8).
5. A corn impurity screening device according to claim 4, wherein: The filter (8) is provided with a maintenance window (9) on the side wall corresponding to the main road channel (6).
6. A corn impurity screening device according to claim 5, wherein: The filter (8) is tilted, with the windward side of the filter (8) facing the maintenance window (9).
7. A corn impurity screening device according to claim 6, wherein: A baffle (10) adapted to the inclination direction is provided above the screening step (1).
8. The corn impurity screening device of claim 1, wherein: The feed inlet (2) is connected to the feeding conveyor belt (11), and the upper end of the feeding conveyor belt (11) has a hopper (13).
9. A corn impurity screening device according to claim 8, wherein: A limiting plate (12) is provided above the downstream of the feeding conveyor belt (11), and a feeding channel is provided between the limiting plate (12) and the feeding conveyor belt (11).
10. A corn impurity screening device according to claim 9, wherein: The feeding conveyor belt (11) is provided with brackets (14) on both sides corresponding to the limiting plate (12). The brackets (14) are provided with strip-shaped sliding holes in the vertical direction. The limiting plate (12) is fixed on both sides by bolts passing through the strip-shaped sliding holes.