Lime Handling System for Operations | Solutions

Lime Handling System for Operations | Solutions

A Lime Handling System is essential for operations that use lime in their processes, whether in industries like water treatment, flue gas desulfurization (FGD), chemical manufacturing, or construction materials production. Lime handling involves several stages, including storage, conveying, dosing, and dust collection, and each stage requires efficient, safe, and reliable systems to ensure smooth operation. Below, we’ll look at the various solutions for lime handling systems tailored to operational needs.

1. Storage and Receiving Solutions for Lime

Storage Systems are designed to store lime safely and in a controlled manner to ensure quality and minimize dust emissions. The key components include:

• Lime Silos:
  • Vertical or Horizontal Silos designed to store lime in bulk.
  • Aeration Pads or Airflow Systems inside silos help prevent caking or clumping by maintaining a consistent air flow.
  • Pressure Relief Valves and Level Sensors help prevent over-pressurization and ensure safe storage.
• Hoppers:
  • Used to transfer lime from bulk storage to downstream equipment.
  • Equipped with vibrators or air blasters to break up clumps of lime and ensure a steady flow to the next system.
• Bulk Receiving Systems:
  • Trucks, railcars, or ships deliver lime, and receiving equipment like bucket elevators, pneumatic conveyors, or screw conveyors move the lime to storage.
  • Dust Collection Systems capture airborne lime dust during unloading.

2. Conveying Solutions for Lime Handling

Conveying systems are critical for moving lime from one process to another within the system. The best options include:

• Pneumatic Conveying Systems:
  • Ideal for long-distance, enclosed transportation.
  • Both dilute-phase and dense-phase systems can be used, depending on the distance, material, and system requirements.
  • Helps maintain a dust-free environment.
• Screw Conveyors:
  • Horizontal, inclined, or vertical screw conveyors can be used for shorter distances.
  • The screw flight design ensures a controlled flow of lime, even with abrasive materials.
  • Wear-resistant materials (stainless steel or special coatings) help extend system life due to lime’s abrasive nature.
• Bucket Elevators:
  • For vertical lifting of lime to different levels in the facility, especially in systems with multiple floors or high storage silos.
• Drag Chain Conveyors:
  • Suitable for high-volume, abrasive materials like lime.
  • Can handle long-distance transport and are often used for heavy-duty applications.

3. Metering and Dosing Solutions for Lime

In processes like water treatment and flue gas desulfurization, accurate dosing of lime is essential. The solutions for precise lime handling include:

• Rotary Valves:
  • Control the flow of lime from storage to the conveying system and from one stage to the next.
  • Rotary airlocks help maintain pressure balance while controlling the flow rate.
• Gravimetric and Volumetric Feeders:
  • Gravimetric Feeders measure and deliver lime based on weight, ensuring consistent feed rates for chemical reactions.
  • Volumetric Feeders are based on volume and are generally used where precise control of material volume is sufficient.
• Lime Slakers:
  • Convert quicklime (CaO) into slaked lime (Ca(OH)2) by adding water to create a slurry. Slakers should be designed to handle the required volume of quicklime and ensure efficient slaking.

4. Dust Collection and Environmental Control

Lime handling systems produce dust, which is hazardous to both worker health and the environment. Implementing robust dust control solutions is crucial:

• Dust Collection Systems:
  • Baghouse Filters: Capture fine lime dust released during handling, transportation, and dosing.
  • Cyclone Separators: Used to remove larger particles of lime from the air.
  • Wet Scrubbers: Help capture and remove fine particulate matter, especially in environments where air quality regulations are strict.
• Enclosed Conveying Systems:
  • Pneumatic or Screw Conveyors can be fully enclosed, preventing dust from escaping into the air during lime transport.
• Emission Control:
  • Systems should be equipped with pressure relief valves, explosion vents, and automatic shutoffs to ensure safety when handling volatile materials.

5. Lime Storage and Slurry Systems

For applications where lime is required in slurry form, such as in water treatment plants, a dedicated slurry system is needed.

• Slurry Preparation Tanks:
  • Slaked lime is often used in slurry form, so preparation tanks mix lime with water to create a liquid slurry that can be pumped to treatment areas.
  • Agitators or mixers are often used in these tanks to ensure proper suspension of lime particles.
• Pump and Piping Systems:
  • Positive displacement pumps or centrifugal pumps transport lime slurry to various application points, such as water treatment basins or FGD units.

6. Maintenance and Operational Solutions

Proper maintenance and operational controls ensure system longevity and avoid downtime.

• Wear-Resistant Components:
  • Lime handling systems are subject to wear and tear, so using wear-resistant liners and components (such as ceramic or high-strength steel) is critical.
• Automated Control Systems:
  • PLC-based control systems monitor lime flow, pressure, and inventory levels, ensuring smooth operation and minimizing manual intervention.
• Preventive Maintenance:
  • Regular checks of screw conveyors, pneumatic systems, and dust collectors ensure the system remains operational with minimal downtime.

7. Safety Solutions for Lime Handling

Ensuring the safety of operators is crucial when handling potentially hazardous materials like lime.

• Emergency Shutoff Valves:
  • For quick shutdown of the system in case of emergencies to avoid damage or safety hazards.
• Fire and Explosion Protection:
  • Proper ventilation, explosion relief systems, and non-sparking components reduce fire risk in areas where lime is handled.
• Employee Training:
  • Operators should be trained on safe handling procedures, dust suppression techniques, and emergency responses.

Conclusion

A well-designed lime handling system ensures safe, efficient, and cost-effective operations for industries that require lime in their processes. Whether it’s for storage, conveying, dosing, or dust collection, having the right equipment in place helps improve productivity, reduce environmental impact, and ensure compliance with safety regulations. Custom solutions tailored to the specific requirements of each facility and operation can further optimize performance.

Would you like more detailed guidance or help designing a lime handling system for your operations?

Lime Handling  System

Process

The high-temperature ash discharged from the furnace is firstly broken into small pieces by the roller-type slag breaker to facilitate cooling and transportation.

After the crushing of the ash and slag into the water-cooled screw slag extractor and between the screw blade and the outer cylinder cooling heat transfer back out.

If necessary, air lock (star ash discharge valve) can be provided at the outlet of the slag cooler.

Ash inlet temperature is less than 900 ℃, clinker size less than 100 mm, the transmission distance is 4 to 7 m, the level of the installation

Advantages

1. Facilitate the comprehensive utilization of slag.

2. Reasonable structure design, reliable operation, safe operation and good sealing performance.

3. Good load adaptability and remote control

Scraper slag remover

1. The cast stone slab is placed at the bottom of the base groove, which can effectively improve the wear resistance of the material and prolong the service life of the base groove.

2. The scraper material of the double-chain scraper is cast steel, the transmission chain is 25MNV high-strength material for mining, and the structure is double-row ring welding. In the process of transporting ash, the tightness of the chain can be automatically adjusted by the device at the front of the device.

3. The double-chain slag removing machine can reduce the labor intensity of the furnace workers, improve the working conditions of the boiler room, and ensure the boiler production efficiency to the greatest extent.

4. Compared with other closed type slag removing machines, the double-chain type is an open design, which can ensure that all ash can be discharged to the outside of the boiler.

5. The scraper support is a cast stone rail support method, which avoids various problems of supporting by the rollers, and can effectively reduce the maintenance cost of the equipment.

6. It is suitable for the slag removal of single-drum boilers with all slag outlets arranged at the rear and lower parts of the boiler.

7. The chain is automatically tensioned by manual or machine. The double overload protection system of the motor can ensure that the chain is not dragged, not stacked, and the ash is transported smoothly, meeting the requirements of industrial boilers and heating boilers.

Boiler removal scraper type
TYPE (Length <8M Slag 0.6-2.3T/H)
For boiler 2ton/h~25ton/h

SELECTION & TECHNICAL QUESTIONS

Q1: How do I select the right conveyor model? What information should I provide?

> To recommend the most suitable solution, please provide the following details:

> 1. Material type: What material are you conveying? (e.g., fly ash, wood chips, biomass pellets, bottom ash, etc.)

> 2. Material properties: Particle size, temperature, moisture content, abrasiveness

> 3. Capacity requirement: How many tons per hour (t/h) do you need?

> 4. Installation conditions: Conveying distance, incline angle, space limitations

> 5. Application industry: Which industry is this for? (e.g., waste-to-energy plant, biomass power plant, cement plant)

> You can also email us or contact us via WhatsApp. Our engineers will get back to you within 24 hours.

Q2: What is the difference between screw conveyors and chain conveyors? Which one should I choose?

> Both types have different applications:

> – Screw Conveyors: Best for powdery and small-grain materials (e.g., fly ash, cement powder). Good sealing performance, simple structure, low maintenance cost.

> – Chain Scraper Conveyors: Best for bulky, highly abrasive materials (e.g., bottom ash, municipal solid waste, biomass fragments). Supports multiple inlet and outlet points.

> – Bucket Elevators: Ideal for vertical or steep-incline material lifting.

> If you are not sure, tell us your material and working conditions, and our engineers will help you choose.

Q3: Can your equipment handle high-temperature materials? What is the maximum temperature?

> We can customize equipment according to material temperature:

> – Standard type: 0~80°C, carbon steel

> – Medium temperature type: 80~200°C, thickened wear-resistant liner

> – High temperature type: 200~400°C, special heat-resistant steel, optional cooling jacket

> Please tell us your material temperature, and we will recommend the most suitable material solution.

Q4: Are there any limits on conveying distance and lifting height?

> Standard design range:

> – Screw conveyor: Single section up to 70 meters; multiple sections can be connected for longer distances

> – Chain conveyor: Single machine up to 60 meters

> – Bucket elevator: Lifting height up to 50 meters

> We can also customize for extra-long distances or special angles. Contact us for detailed solutions.

Q5: Do you provide explosion-proof design?

> Yes. For explosive and flammable conditions such as pulverized coal and biomass dust, we offer:

> – Explosion-proof motors (Ex d IIB T4 standard)

> – Reserved openings for explosion vents / rupture discs

> – Fully sealed structure to prevent dust leakage

> Please specify your explosion-proof rating requirements.

CUSTOMIZATION & MANUFACTURING

Q6: Do you support customization? What is the lead time?

> Over 90% of our equipment is customized according to customer working conditions. Standard models take about 90–120days. Special customizations take 120–180 days, depending on configuration complexity.

Q7: What material options do you offer?

> Common materials include:

> – Carbon steel (Q235B): Standard working conditions

> – Wear-resistant steel (NM400/NM500): Highly abrasive materials

> – Stainless steel 304/316L: Food, chemical, corrosion-resistant requirements

> – Bi-metal wear-resistant composite plate: Extreme abrasion conditions

> We will recommend the most cost-effective material solution based on your material properties.

Q8: What certifications do you have?

> We hold the following certifications:

> – ISO 9001:2015 Quality Management System

> – ISO 14001 Environmental Management System

> – ISO 45001 Occupational Health & Safety Management

> – CE Certification (EN 1090 Steel Structure)

> If you need scanned copies of specific certificates, please contact us.

DELIVERY & LOGISTICS

Q9: Which countries do you export to? Do you have export experience?

> Our equipment has been exported to more than 20 countries worldwide, including:

> – Europe: Germany, France, Poland, Turkey, etc.

> – Southeast Asia: Singapore, Thailand, Indonesia, Vietnam, etc.

> – Middle East: Saudi Arabia, UAE, etc.

> – South America**: Brazil, Chile, etc.

> We are familiar with the full export process: packaging, customs declaration, and ocean freight. We can provide FOB, CIF, and other trade terms.

Q10: What is your packaging method? Is it suitable for long-distance ocean shipping?

> Export-standard packaging:

> – Large items / complete machines**: Rust prevention + waterproof film + fumigated solid wood pallet

> – Precision components: Wooden case with shock-absorbing filling

> – Random accessories: Categorized packing with detailed packing list

> All wooden packaging meets IPPC fumigation standards for direct customs clearance.

Q11: What is your minimum order quantity?

> We do not have a strict minimum order quantity. Single-unit orders are welcome. Bulk orders can enjoy more favorable pricing.

INSTALLATION & AFTER-SALES

Q12: Do you provide installation guidance? Do engineers need to come to site?

> We offer two service options:

> 1. Remote guidance: Detailed installation drawings and operation manuals, video guidance for installation (free of charge)

> 2. On-site service: Dispatch engineers to site for installation and commissioning (travel costs are additional)

> Most customers choose remote guidance. Our equipment is designed as a modular structure for easy installation.

Q13: What is the warranty period? What are the wearing parts?

> Standard warranty period is 12 months (from the date of arrival at port).

> Wearing parts list:

> – Chain / screw flights: Approximately 1–3 years, depending on material abrasiveness

> – Liners: Approximately 2–4 years

> – Bearings: Approximately 2–3 years

> We recommend ordering a wearing-parts spare kit together with your first order.

Q14: How do you solve problems during operation?

> We provide 7×24 technical support:>

> – Response within 24 hours for technical issues

> – Remote video troubleshooting guidance

> – Engineer on-site service when necessary

> – Common spare parts in stock for fast delivery

QUOTATION & COOPERATION

**Q15: How can I get a quote? How long does it take?

> Quotation process:

> 1. You provide material parameters, capacity, installation conditions, and other requirements

> 2. Our engineers evaluate and select the appropriate model

> 3. Formal quotation and technical proposal provided within 7 working days

> You can contact us via email, or the online inquiry form.

Q16: What are your payment terms?

> Standard payment terms:

> – 30% advance payment: After contract signing, to start production

> – 70% balance: Before shipment, or against copy of Bill of Lading

For long-term cooperative customers, more flexible payment terms can be negotiated.

Follow these 3 steps to find your ideal conveyor solution

Step 1: Identify Your Material Type

Different materials require different conveyor designs. Tell us what you are conveying:

Step 2: Define Your Working Conditions

Please prepare the following parameters before contacting us:

Step 3: Choose Configuration Options

Based on your answers above, our engineers will recommend:

Material grade — carbon steel / wear-resistant steel / stainless steel

Sealing type — open trough / fully enclosed / gas-tight

Drive system — motor power, gearbox brand, speed range

Auxiliary options — explosion-proof motor, cooling jacket, cleaning device, level sensors

 Not Sure Where to Start?

Send us your basic requirements, and our engineers will design a customized solution for you — completely free.

Email: bootec@bootecgroup.com  Response time: Within 24 hours

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