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Embedded Scraper Conveyor

Short Description:

Heavy-duty Bottom Ash Extractor and Grate Shifting Conveyor designed for waste-to-energy grate boiler. It continuously cools, extracts and transports hot bottom ash, maintains furnace airtight sealing, wear-resistant structure for 24h continuous operation. Custom design available.


Product Detail

FAQ

How to Choose the Right Conveyor

Product Tags

 

Application

Our en-masse conveyor (also known as Redler / buried scraper drag conveyor) is designed for dust-tight conveying of free-flowing powder and granular bulk materials.
  • Chemical industry: soda ash, lime powder, additives, catalyst
  • Cement & building materials: cement raw meal, fly ash, clinker dust
  • Grain & agriculture: grain, bran, feed pellets
  • Solid waste & WtE: bottom ash, fly ash, biomass fuel, incineration residues
  • Other: mining, pulp & paper, gypsum, plastic granules
Suitable for bulk density 0.2 ~ 2.5 t/m³. Material temperature up to 400°C with high-temperature options.
(Section 2: Key Features)

Key Features

  • Fully sealed trough structure, zero dust leakage, meets environmental emission requirements
  • En-masse conveying principle, low material segregation and low particle degradation
  • Flexible layout: horizontal, inclined or small lift installation, compact footprint
  • Heavy-duty forged chain & flight design, stable running and long service life
  • Multiple material options for wear, corrosion and high temperature working conditions
  • Low power consumption compared with pneumatic conveying
  • Optional safety interlock: choke detector, overload protection, speed monitoring
  • Custom inlet / outlet position, compatible with silo, mixer, dryer and other upstream & downstream equipment
  • FAT inspection, QAP document and welding certification (WPQ) available
(Section 3: Technical Data Table)

Technical Specifications

All parameters can be customized according to your working condition
Item Specification
Capacity 15 ~ 420 m³/h
Conveying length Max. 80 m
Inclination angle ≤ 45°
Construction material Carbon steel / 304 / 316L stainless steel / manganese wear-resistant steel
Chain speed 0.16 ~ 0.32 m/s, frequency adjustable
Drive unit Gear motor, optional SEW / Nord or equivalent
Working temperature Standard ≤120°C; high temp version up to 400°C
(按钮:Download Full Datasheet PDF)
(Section 4: Material & Optional Accessories)

Material & Optional Configurations

  • Trough liner: wear-resistant liner, ceramic liner
  • Chain type: standard forged chain, anti-corrosion chain, high-temperature chain
  • Sealing: gland packing, air purge seal
  • Sensors: blockage switch, chain tension monitoring, speed switch
  • Discharge gate: manual / pneumatic / electric diverter valve
  • Surface treatment: anti-corrosion paint, hot galvanizing
(Section 5: Reference Projects 【询盘转化核心板块】)

Reference Projects

Similar en-masse conveyor deliveries for your reference
  1. Cement plant, Eastern Europe | Fly ash conveying, 120 m³/h, 36 m horizontal route
  2. Chemical plant, Southeast Asia | Soda ash powder transfer, 304 stainless steel construction
  3. Waste-to-energy project | Bottom ash & fly ash closed conveying system
  4. Grain processing mill | Continuous grain and bran conveying
Photos of site installation, FAT test and finished unit can be provided upon request.
(Section 6: Standards & Our Service)

Standards & After-sales Service

  • Design & welding standard: EN ISO, ISO 9001
  • Documentation: GA drawing, assembly drawing, spare parts list, material certificate, QAP, WPQ
  • Pre-shipment: Factory FAT test with video and report
  • Support: Installation guidance, commissioning support, operator training
  • Warranty: 12 months after commissioning or 18 months after delivery
  • Long-term spare parts supply

FAQ

Q1: What materials are NOT suitable for en-masse conveyor?

A: Highly sticky, wet cake material that easily agglomerates and large sharp lumps. We can recommend screw conveyors or other alternatives if your material is not fit.

Q2: Can you change inlet and outlet direction?

A: Yes. Inlet and outlet position can be customized to match your process layout.

Q3: Is dust leakage fully controlled?

A: Yes. The whole trough is fully enclosed with gasket sealing. It is widely adopted for dust control in WtE and chemical projects.

Q4: Can we attend FAT inspection?

A: Sure. We arrange FAT test and provide test report, photos and video for witness.

Q5: What information do you need for quotation?

A: Material type, bulk density, required capacity, conveying length & angle, material temperature, special corrosion or wear requirement.

Request Custom Technical Proposal

Fill in the form below, or send your requirement directly to our email .

Our bulk solids engineer will reply within 24 working hours with layout drawing and quotation.


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  • 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:

     

    Material Category Examples Recommended Conveyor Type
    Powder / Fine Granules Fly ash, cement powder, lime powder Screw Conveyor
    Small Granules / Pellets Biomass pellets, plastic granules, grain Screw Conveyor / Belt Conveyor
    Fragments / Chips Wood chips, bark, agricultural residues Chain Scraper Conveyor
    Bulky / Abrasive Bottom ash, slag, MSW, clinker Chain En-Masse Conveyor
    Vertical Lift Any bulk material needs vertical transport Bucket Elevator

    Step 2: Define Your Working Conditions

    Please prepare the following parameters before contacting us:

     

    Parameter Why It Matters Example
    Capacity (t/h) Determines conveyor size and power 10 t/h, 50 t/h, 100 t/h
    Conveying Distance (m) Determines machine length 15m horizontal, 30m incline
    Incline Angle (°) Affects capacity and design 0° horizontal, 30° incline
    Material Temperature (°C) Determines material grade Ambient, 150°C, 300°C
    Moisture Content (%) Affects discharge design Dry, damp, wet (needs dewatering)
    Abrasiveness Determines liner thickness Low, medium, high
    Application Industry Determines certification needs Power plant, cement, mining, recycling

    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

    [REQUEST A FREE QUOTATION →]

     

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