Hengke Environmental Protection: One-stop Custom Silo System Supplier
The structural standard for lime silos is ICS 23.020.10 (NB/T47003.2-2009). The mechanical standard for silo design is JB/T4735. The electrical design complies with the electrical standards DIN 60947 and EN 61000-6.
HENGKE offers customized silo systems, designed to meet the unique requirements of each project site and to deliver the most suitable lime storage silo. Every silo system undergoes rigorous structural and mechanical design calculations in full compliance with the relevant specifications and standards, ensuring a safe and stable operating silo system.
We have successfully developed lime storage silo systems for over 200 application cases across a diverse range of industries. Our lime storage solutions have been implemented in municipal sewage treatment plants, semiconductor manufacturing facilities, industrial park wastewater zero-discharge projects, photovoltaic installations, steel, coal, and chemical plants, as well as lime mining operations, among others. The lime silos feature a broad capacity range-from compact 5 m³ units to large-scale silos exceeding 300 m³-fully accommodating the storage requirements of enterprises of various sizes and production capacities.
Lime Silo System Components
* Lime Silo, 1 Set
* Silo Top Dust Collector, 1 Set
* Safety Valve, 1 Set
* Activation Hopper, 1 Set
* Powder Specific Valve, 1 Set
* Rotary Discharge Valve, 1 Set
* Screw Feeder, 1 Set
* Level Gauge, 3 Set, High, Medium, and Low Level Alarms
* Dissolving Tank, 1 Set
* Dissolving Tank Mixer, 1 Set
* Water Mist Dust Collector, 1 Set
* Water Level Gauge, 1 Set
* Electrical Control Cabinet, 1 Set
How Does Lime Storage Silo Work?
When powdered lime needs to be stored, it is rapidly and efficiently conveyed into the storage silo through the feed pipe using compressed air from a powder delivery vehicle. During this process, the mixture of lime powder and compressed air first enters the dust collector located at the top of the silo. The dust collector, equipped with a specialized internal filtration structure, captures lime particles suspended in the air stream. As a result, only purified air is discharged outside the silo, achieving dust-free feeding and maintaining a clean working environment.
During storage, the level gauge continuously monitors the material height and transmits real-time signals to the control system. When the material reaches the preset high level, the system automatically issues an alarm to prompt the operator to stop feeding. Conversely, when the material falls to a low level, another alarm is triggered to remind the operator to replenish materials on time.
When material discharge is required, the process begins by activating the arch-breaking device at the bottom of the silo. This device uses high-frequency vibrations to break up any material arching, restoring smooth material flow. Next, a variable frequency speed control feeder precisely regulates the discharge rate in accordance with the production process's set flow requirements. The material is then conveyed by a screw conveyor to the lime milk dissolution tank, where it is prepared into lime slurry. This system ensures a precise and stable supply of material throughout the process.
Why Choose HENGKE Lime Storage Silos?
To address the challenges of dust emission and lime powder clumping, which can lead to workshop pollution, equipment blockages, and adverse onsite production environments. Our lime storage silo is engineered with a fully enclosed structure and reinforced sealing. All critical entry points, such as the inlet, outlet, and manhole, feature corrosion-resistant sealing mechanisms to prevent dust leakage during operation. Additionally, a safety breathing valve is installed at the top of the silo to balance internal pressure, effectively preventing both negative pressure suction and positive pressure leakage.
A variable frequency speed control star-shaped unloader, paired with a high-precision screw conveyor and a high-precision feeding pump at the discharge end, enables stepless adjustment of the feeding rate from 0% to 100%. This integrated system ensures highly accurate lime powder measurement and stable feeding, fully meeting the demands for precision and consistency in the process.
Based on the PLC control module, real-time on-site process data can be collected and compared with preset parameters for analysis. The system will continuously optimize the dosing logic over time and control the dosing deviation within ± 0.5%. The system supports seamless integration with customers' existing DCS systems through industrial protocols such as MODBUS, becoming a "self-operated node" in the production chain.
The bottom arch breaking device has been carefully developed, using an innovative combination of mechanical vibration and airflow vibration assistance. The high-frequency vibration generated by the vibration motor directly acts on the material through the arch breaking mechanism, breaking the bonding force between the materials; At the same time, the air vibration device releases high-pressure airflow at key positions promptly, impacting the material arch from multiple angles, efficiently and safely preventing material arching and bridging, ensuring smooth material discharge, greatly improving production efficiency, and reducing production downtime caused by poor discharge.
The overall system is designed as a modular assembly structure, prefabricated and assembled in the factory, and then disassembled and shipped after trial assembly is correct. On-site installation personnel can independently complete the installation of the entire silo system according to the detailed and clear installation manual we provide, without the need for technical guidance from our company.
With rich industry application and case experience, our professional technical team can help you predict risks in the early stage of the project, design countermeasures in advance, and reduce the failure rate of later use and operation through precise design, ensuring stable and reliable system operation.
Lime Storage Silo Specifications
|
Model |
LB10 |
LB20 |
LB30 |
LB40 |
LB50 |
LB60 |
LB80 |
LB100 |
LB150 |
LB200 |
LB300 |
|
Storage Silos Capacity (m3) |
10 |
20 |
30 |
40 |
50 |
60 |
80 |
100 |
150 |
200 |
300 |
|
Silo Diameter (m) |
2.42 |
2.42 |
3 |
3 |
3 |
3.2 |
3.2 |
3.2 |
4 |
6 |
6 |
|
Height of Silo Straight Section (m) |
3 |
4.5 |
4.5 |
5.5 |
7.5 |
7.5 |
9 |
12 |
12 |
6 |
10.5 |
|
Total Height of Silo (m) |
8 |
9.5 |
10 |
11 |
13 |
13 |
14.5 |
17.5 |
18.5 |
15 |
20.5 |
|
Activation Hopper |
HKB90, 0.16kW (380V, 50Hz) ×1 set |
HKB 125, 0.3kW (380V, 50Hz) ×1 set |
HKB 150 |
HKB 180 |
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|
Silo Outlet Valve |
DN200 |
DN250 |
DN300 |
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Rotary Discharge Valve |
0.75kW (380V, 50Hz) ×1 set, Forced cooling independent fan motor |
1.1kW (380V, 50Hz) ×1 set, Forced cooling independent fan motor |
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Silo Top Dust Collector |
filter area 22m2 |
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safety Valve |
VCP2731B |
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Dissolving Tank Capacity (m3) |
5m3×1 set |
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Dissolving Tank Mixer |
1.5kW (380V, 50Hz) ×1 set |
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Storage Tank Capacity |
5m3×1 set |
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Storage Tank Mixer |
1.5kW (380V, 50Hz) ×1 set |
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Water Inlet Pipe Diameter |
DN50 (Can be adjusted according to the actual needs of the project) |
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Dosing Diameter |
DN32 (Can be adjusted according to the actual needs of the project) |
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Overflow and Emptying Pipe Diameter |
DN80 (Can be adjusted according to the actual needs of the project) |
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Inlet Flow Rate and Pressure |
6~20m³/h,0.3～0.4Mpa |
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Screw Feeder |
The power is determined based on the length of the on-site layout x 1 unit, and the designed conveying capacity is determined based on the on-site usage |
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Dosing Pump |
The flow rate, power, and quantity are determined based on the on-site usage situation |
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Booster Pump |
The flow rate, power, and quantity are determined based on the on-site usage situation |
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Weighing System |
Optional leg weighing, weighing bucket weighing, and dissolution tank weighing |
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Manufacture |
Processed, pre assembled, and shipped separately in the factory |
On site manufacturing |
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One-stop Lime Storage Silo Factory in China
As one of China's leading lime silo manufacturers, we have customized storage silo systems for over 300 projects. Senior engineers with over 20 years of industry experience lead our technical team in providing precise solutions for every unique site.
