Geometry of the Experimental Silo

The principle components of the test station consist of a steel silo for storing the material to be tested and another, experimental silo containing the instrumentation necessary for measuring the actions of the stored material. The stored material is transferred between both silos using two screw conveyors powered by electric motors.

The geometry and dimensions of the test silo are shown in Figure 2. The silo is cylindrical, with a central hopper and a roof at the top. The silo body (a vertical cylinder), the hopper and the roof are independent and can be dismantled.

The storage silo walls were constructed from sheets of stainless steel 3 mm thick, whilst the cylinder, hopper and roof reinforcement rings were 50 mm wide and 10 mm thick. Given the dimensions and the type of material used for the walls, the silo can thus be considered a rigid, smooth-walled steel silo. According to the Euro code classification, it corresponds to a slender silo, since the cylinder height/diameter ratio is equal to 2 (hc/dc =2).

To measure normal wall pressures, a vertical generatrix was located on the cylinder wall, along which 7 readings were taken at the different heights indicated in, whilst hopper pressures were measured immediately below the grain storage silo hopper transition, at the prolongation of the generatrix mentioned above for measuring cylinder pressures. Double bending beam load cells were used to measure normal wall pressures. For this, 150 x 150 mm openings were made in the wall, into which panels of the same curvature were inserted, leaving a small gap around the edges.

Silo Technology --- Muyang

Muyang is the right partner for system, bin, energy and environmental technology. The company has more than 40 years of engineering experience and silo storage expertise, specializing in material storage technology research and development, design, installation and service.

Our grain storage silos are well known wherever bulk solids are stored, processed or transported. They come in capacity from 1 ton to 18000 tons. They have various designs, are made from different materials and are adapted to the demands of the solids being stored. For a sure and continuous discharge, there are a number of special discharge devices to choose from.

The assembly type steel silo's capacity is up to 18,000 tons with comprehensive configurations to meet customers' different requirements. Complete advanced processing equipment and technology are introduced from USA to effectively ensure working accuracy and reduce damage to galvanized layer. External installable stiffeners contribute to less grain residues on silo walls. With standardized and modularized production, components and parts have a high standardization and good interchangeability, thus can be partially replaced or completely transferred.

Muyang Silo Design

The design of bins and silos to store bulk solids involves bulk material, geometric, and structural considerations.

Bulk material considerations are important because the frictional and cohesive properties of bulk solids vary from one solid to another, and these properties affect material behavior considerably. In addition, a given bulk solid's flow properties can vary dramatically with changes in numerous parameters, including particle size, moisture, temperature, and consolidating pressure. This variability of properties makes testing at actual conditions more important for proper bin and storage silo design than at first appear.

When considering the geometric design of a steel silo, potential problems include arching across an outlet, rat holing through the material, and the flow pattern during discharge. A bulk material's propensity to arch or rat hole is primarily related to its cohesiveness, while its flow pattern during discharge depends upon internal friction as well as the friction that develops between the material and the silo's hopper walls. The goal of geometric design is to maximize the useable capacity of a silo while minimizing its capital cost, overall height, etc.

Basic Information on Muyang Silo

Steel silos are ubiquitous in manufacturing plants wherever dry granulated or powdered materials need to be stored. These silos vary in size and are usually supported by a steel frame on a reinforced concrete foundation. The steel silo loaded at the top by pumping the materials in using air pressure or using a conveyor. The silos discharge the materials to a truck or a freight car through a hop-per at the bottom.

Silo materials do not act like a fluid; dry materials have frictional or cohesive resistance and tend to form domes or "bridges" with the walls of the silo that prevent it from flowing freely downward. The lateral pressures on the grain storage silo shell from the dry materials are of a different character than the lateral pressures on a retaining wall from soil at the back of the wall. The vertical pressures on the bottom of the silo from the dry material are affected by the bridging action. In order to discharge the hoppers at the bottom, a vibratory system, called a bridge breaker that temporarily destroys the frictional resistance or cohesive bonds is required.

Features of Muyang steel silo

Large Capacity
One single-silo capacity is up to 18,000 tons with comprehensive configurations to meet customers' different requirements.

High Accuracy
Complete advanced processing equipment and technology are introduced from USA to effectively ensure working accuracy and reduce damage to galvanized layer.

Less Residues
External installable stiffeners contribute to less grain residues on storage silo walls.

Detachable and movable
With standardized and modularized production, components and parts have a high standardization and good interchangeability, thus can be partially replaced or completely transferred.

Muyang Insulation Silo Advantages

Muyang is the world's leading overall storage facilities and engineering solutions provider, in addition to providing steel silo, spiral silo and insulation silo, but also providing a comprehensive package of equipment and systems, including transportation equipment, drying equipment, as well as providing the overall design, construction, integration services.



Muyang insulation silo advantages are as followings:

Heat insulation
Silo inner grain temperature gradient changing slower than that of outside, not easy to condense

Safe grain storage
Store grain at low temperature, increase food storage stability, maintaining food quality and extend the safe storage time.

Low cost
For insulation storage silo, the insulation external wall is equipped with insulation layer (polyurethane foam, rubber foam, fiberglass, etc.), as compared with the concrete silo, low construction cost.

Currently Muyang marketing and service network cover around the world in more than 80 countries and regions with branches or offices. Muyang has a strong localized sales and service teams, providing global customers with localized pre-sales consulting, solution design, product customization, project implementation, equipment installation, maintenance, warranty and all other services.

Integrated Solutions and Turnkey Services

Muyang prefabricated corrugated steel silo using a full U.S. latest manufacturing technology and equipment, equipped with the most advanced computer system that provides users with 10 to 16,800 tons of different models of flat, conical bottom, fluidizing material and porous material discharging, its unique in China.



Muyang spiral steel silo use a full set of equipment and techniques from Europe, providing users with 50 to 7000 tons of different models of flat, conical bottom, fluidizing material and porous materials discharging, stable performance. Muyang is one of the few suppliers in the world providing a single silo capacity of more than 10,000 tons.

Muyang provides customers with turnkey projects ranging from technology process, civil engineering design, automation control systems to improved transportation, cleaning, magnetic separation, metering, drying, fumigation, refrigeration, ventilation, dust, temperature, humidity and other measuring equipment manufacturing, installation , commissioning and personnel training.

Single grain storage silo with capacity 10,000 tons (including the above) has been built hundreds, experienced. It takes the lead in the industry sales in consecutive years. Silos are widely used in food, oil, port, corn deep processing, flour, brewing, chemical, feed, building materials and environmental protection industry, well selling to nearly 100 countries and regions in the world like Egypt, Saudi Arabia, Iran, Thailand, India, Japan, United States, Malaysia with more than 5,000 projects totally.

Muyang Steel Silo Project --- Successful Stories Around the World

As an indstrial company in large scale production of storage products, Muyang Storage Co. has modern workshop bildings and international first-rate production equipment, of which are compelte production lines and technique for assembly type steel silo from USA and that for spiral type steel silos from Switzerland, and silo fabricating equipment including the international first-rate BYSTRONIC laser cutting machine etc. as well.



Muyang Storage Co. markets assembly type steel silos, spiral type steel silos and grain thermal insultion silos and  provides a large selection of matching equipment for the grain silo including buket elevators, en-masse conveyers, belt conveyers, pre-cleaners and dust collectors etc. Muyang also offers entire systematic engineering includes automatic control system, temperature and moisture easuring system, material conveying system, fumigating system, turning-over and cooling system, flat-bottom sweeping system, electric system, steel structure and civil work.

The fabricating technology for assembly type corrugated steel silo comes from the USA. Various spiral steel silos with different bottoms and discharges are available with storing capacity from 10T to 16000T.

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