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Large-Scale High-Temperature Rotary Kiln

PRODUCT PARAMETERS

  1. Furnace Tube Size:D500 × 15000mm, wall 10mm
  2. Heating Zone Length:8.5 meters
  3. Heating Element:Silicon carbide rods
  4. Insulation Layers:Alumina fiber boards & bricks
  5. Exterior Temperature:≤45℃
  6. Safety Features:Over-temp, over-current, phase fail protection
Description
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Description

1000°C Large-Scale High-Temperature Precision Rotary Furnace / Continuous Rotary Kiln / Electric Tilting Rotary Sintering Furnace

This large-scale, high-temperature precision Rotary Kiln furnace is a thermal processing unit designed specifically for the continuous calcination, sintering, activation, roasting, and heat treatment of powder materials. Featuring a split design that separates the furnace body from the control system, the equipment is equipped with a high-temperature silicon carbide heating system, an electric lifting and tilting mechanism, and a variable-frequency rotary drive system. These features enable continuous automatic material feeding, uniform tumbling and heating, and automatic discharging.

By precisely controlling furnace temperature, rotation speed, tilt angle, and material residence time, the furnace effectively enhances product reaction uniformity and production efficiency, meeting the requirements for laboratory research, pilot-scale testing, and full-scale production.

Product Features

  1. Split-unit design with adjustable furnace tube tilt

The equipment features a split design separating the control system from the furnace chamber. The furnace tube assembly utilizes an electric dual-lead-screw lifting mechanism, allowing for an adjustable tilt angle (1–15°); adjusting the lift height controls the material discharge speed.

Split-design large-scale high-temperature rotary kiln
  1. Spiral extrusion feeding for continuous production

The feed end of the equipment utilizes a stainless steel screw extrusion feeder (150 mm in diameter and 1,800 mm in length) to ensure uniform and continuous feeding. Featuring a high degree of automation, the discharge end is equipped with a 2,300 mm cooling unit that lowers the discharge temperature to below 50°C.

  1. Adjustable rotation speed and controllable residence time

The rotation speed of the equipment’s furnace tube is adjustable within the range of 1–50 rpm. Users can flexibly adjust the speed based on material characteristics and process requirements, in conjunction with the tilt angle adjustment function.

  1. Four-layer insulation for over 80% energy savings

The furnace lining employs vacuum-formed, high-purity, lightweight alumina materials, while areas prone to impact—such as the furnace opening and bottom—use lightweight hollow-sphere alumina boards. The four-layer insulation system consists of alumina fiber wool, alumina fiber board, polycrystalline alumina fiber board, and lightweight insulating bricks, resulting in an energy efficiency improvement of over 80% compared to traditional electric furnaces. The furnace shell temperature remains below 45°C, ensuring safe and comfortable operation.

Insulation layer for large-scale high-temperature rotary kiln
  1. Intelligent touchscreen control for easy operation

The control panel is equipped with a touchscreen, intelligent temperature controller, power switch, main heating start/stop buttons, voltmeter, ammeter, computer interface, rotation speed regulator, and lift control switch, providing a clear overview of the system’s operating status. Microcomputer program control supports programmable curves and fully automatic heating/cooling cycles; temperature control parameters and programs can be modified during operation for maximum flexibility and convenience.

Temperature1000°C
Power SupplyAC 380V, 3-phase 5-wire
Maximum Operating Temperature950°C
Long-term Operating Temperature900°C
Control Range80 to 950°C
Temperature SensorK-type thermocouple, measuring range 0-1320°C
Heating Element LocationBottom
Temperature Control Accuracy±1°C (integrated circuit control, no overshoot)
Heating RateFreely adjustable, range: max. 30°C/min, min. 1°C/h
Heating ElementHigh-temperature equal-diameter silicon carbide rods
Furnace BodyCNC machined, polished, sanded, acid-washed, phosphated, powder-coated, and baked. Two-tone color scheme, novel and aesthetic appearance. Features oxidation resistance, acid/alkali resistance, corrosion resistance, high temperature resistance, easy cleaning. Export quality, mirror baking finish.
Furnace StructureAir-cooled double-layer structure with effective air-cooling guide baffles for overall cold air circulation, cooling the heating element conductive plates before exhausting, preventing high-temperature oxidation and ensuring a good working environment.
InletStainless steel screw extrusion feeding. Feeder diameter: 150mm, length: 1800mm.
OutletDesigned with a 2300mm cooling device, ensuring outlet temperature below 50°C.
Lifting MethodSplit-type furnace tube, electric double-screw lifting, tilt angle adjustable (1-15°). Lifting height controls discharge rate.
Rotational Speed Adjustment1-50 r/min
Refractory MaterialLining made of vacuum-formed high-purity alumina lightweight material. High-wear and load-bearing areas (furnace port, bottom) use lightweight hollow ball alumina plates, offering high service temperature, low heat storage, resistance to thermal shock, no cracking, no spalling, and good insulation (energy saving >80% compared to traditional electric furnaces).
Insulation MaterialFour-layer insulation: alumina fiber cotton, alumina fiber board, alumina (polycrystalline) fiber board, lightweight insulation brick. Energy saving >80% compared to traditional electric furnaces.
Furnace Exterior Surface Temperature<45°C
Protection FeaturesIntegrated module control unit with high precision. Dual-loop control and dual-loop protection, including protection against overshoot, undershoot, segment loss, phase loss, overvoltage, overcurrent, overtemperature, current feedback, and soft start.
Control MethodClosed-loop technology with thyristor module trigger control, phase-shift triggering. Continuous adjustment of output voltage, current, or power. Features constant voltage, constant current, or constant power characteristics. Current loop as inner loop, voltage loop as outer loop. Limits output current within rated range under sudden load or overcurrent conditions, ensuring normal operation of the voltage regulator. Maintains constant output current and voltage, protecting heating elements from large current/voltage surges, achieving safe, reliable control and high precision.
Display ParametersTemperature, segment number, segment time, remaining time, output power percentage, voltage, current, etc.
ButtonsImported buttons, service life >100,000 cycles, with LED indicators.
Multi-profile Input30-segment programmable control. Configurable as: 1 profile of 30 segments, 2 profiles of 14 segments each, 3 profiles of 9 segments each, or 5 profiles of 5 segments each. Multiple profiles can be stored and recalled as needed.
Included AccessoriesTwo heating elements, two sets of element holders, one crucible tong, one pair of high-temperature gloves, video tutorial.

Application Areas

  • Continuous Calcination of Powder Materials: Suitable for continuous drying, calcination, and heat treatment processes for various powdered and granular materials. Features continuous screw-extrusion feeding and discharge-end cooling to below 50°C, making it ideal for large-scale industrial continuous production.
  • Battery Material Preparation:Suitable for the continuous drying, pre-calcination, and heat treatment of precursors for lithium-ion battery cathode and anode materials.
  • Catalyst Calcination: Suitable for the continuous calcination and activation of materials such as catalyst supports and molecular sieves. A 30-segment programmable control system meets the requirements of complex temperature profiles.
  • Metal Powder Reduction: Suitable for the reduction pretreatment of metal oxide powders to produce high-purity metal powders. Adjustable furnace tube tilt angle and rotation speed accommodate various reduction processes.
  • Drying and Calcination of Chemical Raw Materials: Suitable for the continuous drying and decomposition/calcination of chemical raw materials such as carbonates and hydroxides, offering high production capacity and efficiency.
  • Continuous Production of New Materials: Suitable for the continuous, large-scale production of advanced materials such as specialty ceramic powders and composites, providing reliable equipment for industrial manufacturing.

Company Profile

A professional enterprise specializing in heat treatment technology services and the R&D, manufacturing, and sales of high-temperature electric furnaces.

The company focuses on developing high-temperature electric furnaces covering a full temperature range of -100℃ to 2600℃. Its products include experimental electric furnaces, vacuum atmosphere furnaces, industrial kilns, and medium-frequency induction heating equipment. Main products include box furnaces, tube furnaces, lifting furnaces, pusher kilns, bogie furnaces, rotary kilns, tunnel kilns, and various specialized medium-frequency furnaces.

The company adheres to technological innovation and has passed ISO9001 and EU CE certifications. It owns 21 registered trademarks, 29 patents, and 27 software copyrights.

Payment Methods

TT

Shipment Methods

The electric furnace is packaged in three layers: first wrapped in foam paper, then wrapped in plastic film, and finally packed in a wooden crate.

Frequently Asked Questions (FAQ)

  1. What is the function of the furnace tilt angle?

Adjusting the tilt angle (ranging from 1° to 15°) alters the material’s residence time within the furnace, thereby controlling firing results and production efficiency.

  1. Is the rotation speed adjustable?

Yes, the rotation speed is continuously adjustable between 1 and 50 rpm and can be freely set according to process requirements.

  1. To what level can the discharge temperature be controlled?

The equipment is equipped with a 2,300 mm cooling discharge unit, typically capable of reducing the discharge temperature to below 50°C.

  1. Does it support complex firing profiles?

Yes. The system can store multiple process profiles and supports programmable temperature control with up to 30 segments.

  1. Does it support operation with a protective atmosphere?

Yes. Rotary furnaces can be customized for operation with nitrogen, argon, hydrogen, or other protective atmospheres.

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