Self-Supporting Silo Hopper Assembly Without On-Site Welding
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Solution Overview
Problem
Existing silo hoppers require significant on-site welding work to connect to silo cells, particularly in hard-to-reach places, which is inefficient and labor-intensive.
Innovation Solution
A self-supporting silo hopper with leg segments forming a quarter of an equiangular octagon, equipped with bolt holes, allowing for bolt connections to an octagonal bushing, enabling assembly without on-site welding, and providing a stable base for silo construction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional welding connections are used to connect silo hoppers to silo cells, then structural strength is achieved, but on-site welding work becomes labor-intensive and time-consuming
Solution Approach 1:
The silo hopper is divided into modular segments with standardized connection interfaces. Each hopper unit includes integrated connection elements (bolts, flanges, or coupling mechanisms) that allow for pre-fabricated assembly and rapid on-site installation, eliminating the need for extensive on-site welding while maintaining structural integrity through segmented construction
Solution Approach 2:
Connection elements and structural components are pre-assembled and pre-positioned during manufacturing before delivery to the construction site. This preliminary assembly includes pre-installed bolts, flanges, or coupling mechanisms that enable quick connection without requiring on-site welding operations, thus improving construction productivity
2Reliability
If welding is performed in hard-to-reach places during silo construction, then complete structural connection is achieved, but labor complexity and time requirements increase significantly
Solution Approach 1:
The hopper structure incorporates self-aligning and self-connecting features through standardized interfaces and built-in positioning elements. These features enable workers to connect hoppers from accessible positions without needing to perform welding in difficult-to-reach areas, as the design automatically ensures proper alignment and connection completeness
3Manufacturing precision
If precise alignment is required for final silo height in assemblies of many hoppers, then manufacturing precision must be extremely high, but this increases production complexity and cost
Solution Approach 1:
The connection system incorporates adjustable parameters such as telescopic connection elements, adjustable flanges, or compensation mechanisms that allow for alignment adjustments during assembly. This enables achieving precise final alignment without requiring extremely tight manufacturing tolerances on individual components, thereby reducing production complexity while maintaining assembly precision
Data Source
AI summary
Provided is a silo hopper with a hopper opening for connection to a silo cell with a rectangular cross-section. The silo hopper includes a hopper wall which encloses the hopper opening. The hopper wall extends from an upper plane to a lower plane lying parallel thereto and tapers from a rectangular upper cross-section in the upper plane to a smaller lower cross-section in the lower plane. The silo hopper is self-supporting and is provided at at least one corner, preferably at all corners, with a leg segment. The leg segment extends at right angles to the upper plane and includes a first plate part which is parallel to a first side of the upper cross-section and includes a second plate part which is parallel to a second side of the upper cross-section lying at right angles to the first side. The first and second plate parts are mutually connected close to the hopper opening by a third plate part. The third plate part forms an angle of 135° with the first and second plate part, as seen perpendicularly of the upper plane. Also provided are a silo base and a method for erecting a silo.