Environment-friendly anti-explosion grain unloading pit
By setting up support beams inside the unloading pit to separate the unloading port and the air extraction port, and combining them with a dustproof bin and a dust collector, the problem of dust being difficult to remove during the unloading process was solved, achieving efficient dust removal and cost savings.
Patent Information
- Application Number
- CN202423124711.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-18
AI Technical Summary
Existing technologies are insufficient to efficiently remove dust generated during grain unloading, and existing dust removal equipment is costly and ineffective.
A conical grain hopper is installed inside the unloading pit, and a support beam is erected at its upper opening to divide it into an unloading port and an air extraction port. Combined with a dustproof bin and a dust collector, the dustproof bin covers the unloading port and the dust collector sucks up the dust. Combined with the unloading grid, the dust generation is reduced and the dust collector is prevented from getting wet by rain.
It achieves efficient dust removal, reduces construction and labor costs, meets environmental protection requirements, and provides a guarantee for safe production in the grain storage industry.
Smart Images

Figure CN223509270U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grain storage technology, and in particular to an environmentally friendly and explosion-proof grain unloading pit. Background Technology
[0002] After grain is transported to the storage plant by trucks, it is poured directly into the unloading pit and then stored in the grain silos through the bottom outlet of the pit. The pouring of grain into the unloading pit generates a large amount of dust. With increasingly stringent environmental protection requirements in my country, substandard dust emissions during unloading have become a common problem in the grain storage industry. To reduce dust generated during unloading, existing methods typically involve installing a complex and expensive dust removal system on the roof of the unloading plant. This is not only extremely costly but also fails to guarantee efficient dust removal, especially in the case of the large amounts of dust generated inside the unloading pit. Summary of the Invention
[0003] The purpose of this utility model is to provide an environmentally friendly and explosion-proof grain unloading pit in response to the shortcomings of the existing technology.
[0004] To achieve the above objectives, the present invention can adopt the following technical solution:
[0005] The environmentally friendly and explosion-proof grain unloading pit of this utility model includes a conical grain hopper set in the grain unloading pit. A pair of parallel support beams are horizontally erected at the upper opening of the grain hopper. A dustproof chamber is set on the two support beams. The two support beams divide the upper opening of the grain hopper into a grain unloading port located in the dustproof chamber and an air extraction port located on the left and right sides of the dustproof chamber. A dust collector located outside the dustproof chamber is set on the two air extraction ports.
[0006] Furthermore, a grain unloading grid is horizontally installed at the upper edge of the unloading port. The grain unloading grid can reduce the dust generated when the grain truck dumps grain into the unloading port, and can effectively reduce the dust in the lower grain hopper from drifting upwards into the dustproof bin.
[0007] Furthermore, the top of the dustproof chamber has a rainproof canopy, and the left and right edges of the rainproof canopy extend outward to form a canopy edge that covers the top of the two dust collectors, thereby effectively preventing the dust collectors from getting wet in the rain.
[0008] The advantages of this utility model are that by horizontally erecting a pair of support beams on the grain hopper of the unloading pit, the upper opening of the grain hopper is divided into a central unloading port and two exhaust ports on the left and right sides. At the same time, a dustproof bin is set on the unloading port, and a dust collector is set on the two exhaust ports. Thus, the dustproof bin is used to prevent the dust generated when dumping grain from spreading outward, and the dust collectors are used to directly suck up the dust in the lower beam hopper, achieving the purpose of efficient dust removal, reducing the input of labor and construction costs, easily meeting environmental protection requirements, and providing a strong guarantee for the safe production of the grain storage industry. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the structure of this utility model.
[0010] Figure 2 yes Figure 1 A top-down enlarged view (rain shelter removed). Detailed Implementation
[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0012] like Figure 1 , 2 As shown, the environmentally friendly explosion-proof grain unloading pit of this utility model includes a grain hopper 1, which has a cone-shaped structure that is larger at the top and smaller at the bottom, and is buried in the pit opening of the grain unloading pit 100; the top of the grain hopper 1 has an upper opening 2 for pouring in grain crops, and the bottom has a lower opening 3 for dropping grain crops.
[0013] A pair of support beams 4 are horizontally installed at the upper opening 2 of the lower grain hopper 1, which are fixedly connected to the opening of the unloading pit 100. The two support beams 4 are parallel to each other, dividing the upper opening 2 of the lower grain hopper 1 into a grain unloading port 2.1 in the middle and an exhaust port 2.2 on the left and right sides. At this time, a dustproof silo 5 is set on the two support beams 4, directly above the grain unloading port 2.1. On the left and right sides of the dustproof silo 5, a set of dust collectors 6 are set directly above the exhaust ports 2.2. The dustproof silo 5 completely covers the grain unloading port 2.1 to prevent the dust generated when the grain truck dumps grain into the grain unloading port 2.1 from escaping. The dust collectors 6 directly suck up the dust in the lower grain hopper 1 through the exhaust ports 2.2 to achieve efficient dust removal, reduce labor and construction costs, easily meet environmental protection requirements, and provide strong protection for safe production in the grain storage industry.
[0014] Furthermore, to reduce dust generated when unloading trucks dump grain into the unloading port 2.1, a grain unloading grid 7 should be horizontally installed at the upper edge of the unloading port 2.1. The grid hole diameter of the unloading grid 7 should be at least larger than the particle size of the grain crop poured into the lower grain hopper 1. This ensures that the grain crop falls smoothly into the lower grain hopper 1 while providing a certain buffer for the falling grain crop, effectively reducing the generation of dust during unloading and reducing the dust in the lower grain hopper 1 from drifting upwards into the dustproof bin 5.
[0015] Furthermore, to prevent the dust collector 6 from getting wet in the rain, the top of the dust chamber 5 has a rain shelter 8. The left and right edges of the rain shelter 8 extend outward to form a canopy edge 9 that covers the top of the two dust collectors 6. The canopy edge 9 can effectively cover the top of the dust collector 6.
[0016] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
Claims
1. An environmentally friendly and explosion-proof grain unloading pit, comprising a conical grain hopper disposed within the unloading pit, characterized in that: A pair of parallel support beams are horizontally mounted at the upper opening of the lower grain hopper. A dustproof bin is installed on the two support beams. The two support beams divide the upper opening of the lower grain hopper into a grain unloading port located inside the dustproof bin and an air extraction port located on the left and right sides of the dustproof bin. A dust collector is installed on the two air extraction ports located outside the dustproof bin.
2. The environmentally friendly explosion-proof grain unloading pit according to claim 1, characterized in that: A grain unloading grid is horizontally installed at the upper edge of the unloading port.
3. The environmentally friendly explosion-proof grain unloading pit according to claim 1, characterized in that: The dustproof chamber has a rainproof canopy on top, and the left and right edges of the rainproof canopy extend outward to form a canopy edge that covers the two dust collectors directly above.