| Customization: | Available |
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| After-sales Service: | 12 Months |
| Warranty: | 12 Months |
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| No. | Name | Two-row nitrogen roller furnace |
| 1 | Firing materials | lithium iron phosphate |
| 2 | Apparent density | 0.6-0.7 kg/L |
| 3 | Sagger material | graphite |
| 4 | Sagger size | Upper saggar (flat mouth) : 330×330×160mm, weighing about 4.8kg Lower saggar (notch) : 330×330×160mm, weighing about 4.6kg Lower bowl cover: 330×330×10mm, weight about 1.7kg Note: Bowl bottom and lid with limiting boss |
| 5 | Container load |
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| 6 | Process Time | 18-35h(adjustable) Common process (21h, 850ºC) : temperature rise 4.5h+ insulation 9h+ cooling 7.5h |
| 7 | Firing loss rate | 20-25% |
| 8 | Temperature control accuracy | ±1ºC |
| 9 | Temperature uniformity | ±3ºC |
| 10 | Discharge temperature | Material table ≤80ºC (maximum of 4 saggar) |
| 11 | Furnace Length | 20m About 20m |
| Furnace Model | Product Model: HGD83536-1611ZN Sagger size: 330×330×160mm×2 columns×2 layers |
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| Design calculation | Design furnace length: 20800mm Process setting: Temperature rise 4.5h+ insulation 9h+ cooling 8h=21.5h (See the process time in the table below for details) Running speed: 20800/21.5=967mm/h |
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| Basic Size | Furnace size (roller surface to top) : 835×360mm Effective bearing height: 330mm Weight: about 35000Kg (without circulation line) Overall dimension: about 26200mm×2400m×3000mm (without control cabinet) |
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| Furnace structure | Loading transition zone: 693mm Heating area:13170mm(693*8+1040*6+693*2) Free cooling zone: 693mm Fan cooling zone: 2080mm Water cooling zone: 4160mm Total length of furnace body: 20800mm Loading air chamber:1500mm Unloading air chamber:1900mm Loading platform: 800mm Unloading platform: 1200mm Furnace Length: 26200mm Furnace head and tail increase expansion indicator |
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| Process Time | Typical process speed 967mm/h:
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| Heating System | Rated temperature: 800ºC; Maximum temperature: 1050ºC Heating element: silicon carbon rod (The upper and lower parts of the heating zone and the upper parts of the constant temperature zone pass through ceramic protective tubes) Temperature uniformity of furnace chamber: ±1ºC(platform area) Temperature control accuracy: ±3ºC (platform area) Number of temperature zones: 16 Temperature control points: 32 points Reserved detection points: Temperature detection holes are reserved in each temperature zone |
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| Cooling | Cooling method: fan cooling + fins water cooling Discharge temperature (material table) : ≤80ºC (4 saggars take the maximum, cooling time≮9h) Surface temperature of furnace ≤ ambient temperature +45ºC (except for 200mm roller hole and heating hole) Outer plate temperature ≤ ambient temperature +20 °C |
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| Atmosphere | Firing atmosphere: nitrogen Air inlet: 22 air inlet pipes, the main precision filter precision 1μm, and set maintenance bypass Exhaust: total of 9 exhaust stacks, inlet transition zone, 1 stack of zone 1-8 separately, exhaust fan one main and one backup, exhaust fan impeller and volute material SUS304, the maximum air volume of about 1000m³/h. The impeller and volute of the cooling fan are made of SUS304, and the maximum air volume is about 3600m³/h. The fan has a stop rotation abnormal alarm. Furnace pressure negative feedback: equipped with 3 furnace pressure gauges, furnace pressure negative feedback control in the heating section (fan chain can choose automatic and manual mode switching), fan noise ≯85dB (measured 1 meter away from the fan) The oxygen content control requirements of lithium iron phosphate process are as follows (purity of nitrogen gas source: 99.999%) Test under empty furnace insulation: Heating up zone ≤30ppm High temperature holding area ≤10ppm (greater than 400ºC) Cooling zone ≤30ppm Water cooling zone ≤30ppm |
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| Atmosphere | Detection method: equipped with 1 oxygen analyzer (consumable parts, no warranty), mobile inspection, with cart. Reserve monitoring points: 1 point for each temperature zone, 1 point for cooling, and 1 point for inlet and outlet air chambers. |
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| Transmission | Main propulsion: Silicon carbide roller table (diameter 38mm, spacing 80mm) Bearing capacity: Total of the top and lower saggar + material weight + pot cap ≤35kg Import and export propulsion: metal shaft ceramic roller, metal is not in direct contact with the saggar Main transmission speed: 500mm ~ 1200mm/h (matching 18-35h process time), frequency conversion speed regulation, digital display, transmission cycle deviation ≤30min (24h) Common speed: 967mm/h |
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| Alarm | Alarm protection: broken roller rod, over temperature, low temperature, speed, oxygen content, motor overload, air pressure and other sound and light alarm protection Broken rod alarm: using the area detection of the shooting mode, the probe detects the regularity of the stainless steel blades at the driven end of the roller rod to determine whether each group of roller rods is in normal operation. Each furnace body (length 2080mm is a detection area) |
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| Electricity | Maximum power: 348kw Typical insulation power: ≤140Kw (normal process, common working conditions) Power supply: 380/220V±10%, 50Hz±5%, 3-phase 5-wire (A, B, C, ground, zero), independent power supply, total capacity is not less than 464KVA. Installation site: 28×3.6×4m (L×W×H, excluding control cabinet) |
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| Water | Cooling water: 20-25m3/h Inlet water temperature: ≤25ºC Water inlet pressure: 0.2Mpa Backwater pressure: no backwater pressure Furnaces equipped with pressure gauges for water inlet, and the equipment gives alarm when low water pressure occurs. Configuration of water temperature detection: when the cooling water exceeds the temperature, the overtemperature alarm is issued. |
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| Gas | Lithium iron phosphate process nitrogen common consumption: ≯140Nm3/h, and the total inlet flow rate to monitor Nitrogen inlet pressure: 0.4Mpa Compressed air inlet pressure: 0.3-0.8Mpa Compressed air consumption: 8m3/h |
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| Environment | Ground: ground level ±20mm, no vibration, ground load ≥0.8t/m2 Environmental conditions: equipment ambient temperature <50ºC, ambient humidity <80%RH; The ambient temperature of the control cabinet is 10-25ºC and the ambient humidity is <50%RH. No corrosive atmosphere, especially chlorine, sulfur and other corrosive gases; No strong turbulence |
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