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Solving Common Problems in Industrial Coal and Bulk Silos

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  Industrial coal and bulk silos are the backbone of raw material storage for power plants, mining operations, and heavy industrial facilities, ensuring a steady supply of coal, grains, and other bulk materials to keep production lines running. However, these critical storage structures—most often made of steel—face a range of common problems due to constant exposure to harsh industrial environments, heavy material loads, and long-term use. From blockages and corrosion to structural wear and material waste, these issues can lead to costly downtime, safety hazards, and reduced operational efficiency. For facility managers, project contractors, and operations teams, identifying and solving these common silo problems is essential to protecting their investment, maintaining productivity, and avoiding unnecessary repairs. Below, we break down the most frequent issues plaguing industrial coal and bulk silos, along with practical, actionable solutions tailored to steel structure silos—de...
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What are the components of a bolted ball node?

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 The bolt ball node is mainly composed of the following parts:


Steel ball:
Material: forged or cast solid steel ball, but the inner part is actually hollow to reduce weight.

Role: As the core component of the connection, the steel ball is drilled and turned out according to the angle of convergence of the net frame rods, and is used to connect with the bolts.

Bolt:
Material: high strength bolt to ensure the reliability and durability of the connection.
Role: Connect the steel pipe members and steel balls together by bolts to form a whole structure. The diameter and length of the bolts are selected according to the force demand.

Sleeve:
Shape: usually a hexagonal sleeve for easy screwing.
Role: Sleeve on the screw of the bolt, by unscrewing the sleeve can drive the bolt to rotate, so as to realise the connection between the bolt and the steel ball.

Pins or screws:
Function: used to fix the bolt and sleeve together, preventing the sleeve from falling off in the process of unscrewing. The diameter and length of the pin or screw should match the sleeve and bolt.

Cone head or seal plate:
Material: the same material as the steel pipe rod to ensure the welding quality.
Function: Welded on both ends of the steel pipe rod, used to place the bolts and connect with the sleeve. The design of the cone head or sealing plate can be adjusted according to the force requirements.

These parts together constitute the bolt ball node, which realises the reliable connection between the steel pipe rod and the steel ball through the matching connection of bolts, sleeves, pins or screws, and conical head or sealing plate. This node form has the advantages of strong adaptability, reliable connection, easy installation and disassembly, etc., and is widely used in large-span space structures.

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What is a coal bunker?

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Coal bunker , is a structure used for storing coal. Coal bunkers play an important role in thermal power plants, coal mines and coal marshalling stations. Depending on the specific application scenario and design, there are various types of coal bunkers, such as circular coal bunkers, square coal bunkers and open coal yards. Safety Management of coal bunkers Preventing spontaneous combustion of coal: Since coal itself contains certain moisture and volatile substances, long-term exposure to the air may lead to spontaneous combustion, so the safe management of coal bunkers is of great significance in preventing spontaneous combustion of coal. Ensure the quality of coal: coal in the coal bunker usually needs to be stored for a long time, if not managed properly, it may lead to the decline in the quality of coal, such as sulphurisation, weathering and other phenomena, so it is necessary to ensure the quality of coal by strengthening the safety management of the coal bunker. Improve the eco...
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What is the difference between a single-layer reticulated shell and a double-layerreticulated shell?

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  The differences between single-layer reticulated shells and double-layer reticulated shells are as follows: Structural Configuration   Single-layer reticulated shell: Composed of a single layer of members, with the members directly connected to form a grid structure . The node configuration is relatively simple, typically employing rigid connections that allow the members to bear not only axial forces but also bending moments and shear forces.   Double-layer reticulated shell: Consists of upper and lower parallel layers of members connected by web members, forming a truss-like structural system. The nodes are generally hinged, and the members primarily bear axial forces. Its configuration is relatively complex, requiring more members and nodes to ensure structural stability and load-bearing capacity. Structure Single-layer mesh shell: composed of one layer of rods, the rods are directly connected to form a mesh structure, the node structure is relatively simple, usually...
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Structural Steel Bolting Balls: Connecting the Future, Securing the Cornerstone

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In the field of steel structure , bolted ball, as an innovative choice of connecting node, is gradually becoming the preferred solution in modern buildings and industrial facilities due to its advantages of easy installation, removable and reorganisable, and low maintenance cost. Compared with traditional welded balls, bolted balls not only simplify the construction process and improve efficiency, but also give the structure greater flexibility and sustainability, which is an indispensable and important component in modern steel structure projects. The core concept of the bolted ball connection technology is to use high-strength bolts to closely connect the components to form a stable and reliable node structure. Compared with welded ball, bolted ball connection does not require on-site welding and avoids thermal stress, deformation and weld quality problems that may arise during the welding process, thus improving the overall stability and safety of the structure. In addition, the bo...
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