Weighing Bin

The weighing bin is a special-purpose device integrating storage, weighing, metering and discharging. It is widely used in cement production, concrete batching plants, building materials processing and other industries. Its core function is to provide accurate weight metering for bulk powder materials such as cement, fly ash and mineral powder, providing data support for batching control in the production process, and is a key device for ensuring product quality stability.

Core Functions

1. Accurate metering: Equipped with high-precision weighing sensors (accuracy generally up to ±0.1% ~ ±0.5%), real-time collection of material weight data to avoid batching deviations.

2. Temporary storage and buffering: With short-term storage function, relieving material supply pressure between upstream and downstream processes, ensuring production continuity.

3. Automatic control: Interlocked with PLC control system, supporting automatic feeding, metering, discharging and zero reset, reducing manual intervention.

4. Data traceability: Capable of recording each metering data, supporting network upload for production process traceability and management.

5. Anti-blocking and anti-sticking: Aimed at the characteristics of cement being prone to moisture absorption and caking, equipped with arch-breaking devices (such as pneumatic arch breaker, vibration arch breaker) to prevent material bridging and blockage in the bin.

Structural Composition (Core Components)

- Bin body: Made of Q235B or stainless steel, cylindrical/square structure, smooth inner wall anti-sticking, volume designed according to production capacity (commonly 1~50m³).

- Weighing system: Including weighing sensors (cantilever beam type/bridge type) and weighing instruments, core for weight signal acquisition and display.

- Feeding device: Equipped with pneumatic butterfly valve/gate valve to control material entry, avoiding metering errors caused by too fast feeding.

- Discharging device: Equipped with screw conveyor and pneumatic discharge valve at the bottom, supporting uniform discharging and adapting to subsequent batching processes.

- Arch-breaking device: Pneumatic arch breaker or vibration motor, solving cement caking and bridging issues, ensuring smooth discharging.

- Control system: Interlocked with the main production line PLC, supporting manual/automatic switching, real-time display of weight, accumulated quantity, batching times and other data.

- Safety devices: Equipped with breather valve and dust filter at the top (preventing dust leakage), and inspection port and level indicator on the bin body (monitoring material level).

Working Principle

1. Material enters the weighing bin through bucket elevator/screw conveyor. After the feeding valve is closed, the weighing system stably collects material weight data.

2. The control system compares the set weight with the actual weight, and precisely controls the discharging quantity (if batching is required, it can discharge in proportion together with other materials).

3. After discharging is completed, the weighing system resets to zero and enters the next metering cycle.

4. All data is uploaded to the central control system in real time, with automatic alarms for abnormal conditions (such as out-of-tolerance, material blockage).

Applicable Scenarios

- Concrete batching plants: Accurate batching of cement, fly ash and other powder materials.

- Cement product factories: Metering control of cement consumption in precast component production.

- Building materials production lines: Powder material proportioning in products such as gypsum boards and tile adhesives.

- Large engineering sites: Concrete mixing support for projects such as bridges and high-speed railways.

Core Advantages

1. Accurate metering: High-precision sensors + digital control, small batching errors, ensuring product quality consistency.

2. High energy efficiency: Automated operation reduces labor costs, high discharging efficiency (common discharging capacity 10~100t/h).

3. Strong durability: Thickened bin body, corrosion-resistant and anti-sticking inner wall, adapting to cement humid working conditions.

4. Convenient operation: Visual control panel, supporting parameter setting and data query, easy maintenance.

5. Wide adaptability: Customizable volume, material and arch-breaking method according to production capacity and material characteristics (moisture content, particle size).