I. Structure Shape and Dimensions

The effective diameter of the large steel plate storage can reach several to dozens of meters, with a height-to-diameter ratio of about 1:1. The storage body is cylindrical, and the storage top is a spherical segment of a circular warehouse. The storage walls are made of steel plate welding; the hemispherical top is formed by a special structural design and the combination of multiple arch beams, creating a unique architectural structure with a reliable load-bearing capacity due to its reasonable design. The bottom shape of the storage is concave, designed using the wedge force pressurization principle, with varying design parameters under different climatic conditions and geological structures.

Material storage volume and bulk density: Single warehouse capacity of 100,000 tons.

Cement silos can store 10,000 to 100,000 tons each, and can be combined to form a cement stockpile complex with a total storage capacity of several hundred thousand tons. The cement reserve is related to its density; cement with high gas content entering through chutes has a lower density, usually around 1.2, which can reach 1.4-1.5 after a period of storage, and about 1.7 if stored for a longer time. Generally, the storage density of cement is calculated at 1.45.

Section 3: Inventory Inbound: Mechanical and pneumatic options available.

Material incoming methods can vary according to each factory's specific conditions, such as using hoist incoming, inclined chute incoming, or pneumatic conveying pipeline incoming. Between storage tops, and between storage tops and hoist frames, gantries can be constructed to facilitate the installation of incoming material conveying equipment.

Four: Delivery Method & Flow: Gas discharge, up to 200-500 tons per hour.

The traditional round granary's unloading method generally employs gravity discharge, but as cement is stored for a long time, the unloading rate is quite low without external force, usually not exceeding 70%. This large steel plate storage facility utilizes a special gasification unloading device combining gas fluidization and pneumatic pipelines, causing the cement inside to first reach a fluidized state. When the angle of the unloading chute at the bottom is greater than the natural flow angle of the material, the material flows along the chute for unloading. It is then homogenized through a central homogenization chamber before being dispatched and transported by the sender and conveyor.

The conduit transports materials out of the storage, ensuring an evacuation rate above 95% even with a large storage base area. The cement is conveyed into packaging silos or bulk cement tanks via equipment upgrades or pneumatic conveyance systems, designed according to the customer's requirements for outflow volume. The single pipeline has an outflow capacity of up to 300t/h, and for higher volumes, dual-pipe and multi-pipeline combinations can be employed to meet customer needs.

Five: Low operating energy consumption: 0.3 kWh per ton of cement.

Due to the integrated design concept of gas fluidization, gas homogenization, and gas delivery, which is the principle of multi-use with one gas, a significant amount of gas resources can be saved. Considering the long storage period of cement, which increases its bulk density, medium-pressure air is used as the gas source for unloading, while the central area and conveying surge pipes utilize low-pressure gas from Roots blowers. The comprehensive electrical consumption for gas homogenization, unloading, and conveying of cement is approximately 0.3 degrees per ton. If the cement is stored for an extended period, the electrical consumption will increase relatively.

Six: Excellent quality retention for cement: Long-term storage without deterioration

With extended storage periods, the density of cement increases. Cement stored in large steel plate silos is essentially vacuum-sealed due to the strict air isolation of the walls. This sealing effect is significantly superior to that of brick, stone, and concrete structures, and is far beyond comparison with bagged stored cement. Practice has proven that cement stored in large steel plate silos for two years or more maintains its quality essentially unchanged, with no signs of clumping.

Section 7: Environmental Compliance: One dust collector achieves dust-free emissions

The top of this storage facility features a load-bearing dome, each equipped with a pulse-jet dust collector. These collectors primarily collect dust generated during the material's entry into the storage, ensuring dust emissions are below 30 mg/m³³. Using traditional storage would require an increased number of dust collectors and a higher environmental investment. For instance, a large steel plate storage facility for 30,000 tons of cement has only one feed opening and one dust collector to guarantee dust-free emissions. In contrast, a traditional 5,000-ton round silo would need six, each with a single feed opening, necessitating six dust collectors. Just the increased number of exhaust points alone makes environmental management more challenging.

Section 8: Process Layout: Flexible and Free

Layout options include linear, triangular, double-row, or multi-row formations based on the site location, with the discharge corridor direction adjustable to suit the site conditions. Due to the use of pneumatic conveying for discharge, the placement of the warehouse hoist can be freely chosen.

Section 9: Broad Storage Applications: Diverse and Varied

Our company has been promoting the application of large-scale steel plate silos for cement storage, while also developing clinker and fly ash storage silos in succession. This not only reduces investment and eliminates environmental pollution, but also saves a significant amount of construction land. Additionally, we have developed storage facilities for grain, oil products, and more.

Ten: Short construction period: approximately 100 days

Based on geological conditions, construction site, and environmental factors, the construction period typically ranges from 3 to 4 months. For group storage construction, cross or simultaneous construction can be employed to shorten the timeline.

Eleven: Long service life: 50 years

Conduct anti-corrosion maintenance according to specifications to ensure a reliable lifespan of 50 years, even without visible corrosion on the surface.

Twelve: Low maintenance costs: The equipment for material extraction within the warehouse incurs almost no maintenance fees.

The gasification, unloading, and conveying equipment in the warehouse have no rotating parts, making them essentially maintenance-free. Even for a 30,000-ton cement storage facility, a maintenance check is only required every three years, involving merely applying anti-rust paint to the exterior, with annual maintenance costs of around 3,000 yuan.