1. Technical Parameters
| No. | Item | Specification |
| 1 | Rated temperature | 1200℃ |
| 2 | Normal used working temperature | 1000℃ |
| 3 | Furnace body surface temperature | ≤45℃+room temperature |
| 4 | Max temperature rise speed | 150℃/h |
| 5 | Heating zone | 4 zones |
| 6 | Effective working size | 6000*2500*1500mm |
| 7 | Furnace hearth size | 6400*2900*2000mm |
| 8 | bogie max loading capacity | ≤60000kg |
| 9 | Quantity and model of burner | 8pcs, AGS 140HB, 450kw/h |
| 10 | Temperature control method | Intelligence temperature controller, touch screen, pulse combustion, Siemens PLC and manual control; remote control of furnace door lifting and bogie moving. |
| 11 | Temperature record | K type thermal couple |
| 12 | Furnace lining | heat resistant all fiber structure |
| 13 | Power supply | 380V, 3phase, 50Hz |
| 14 | Furnace door opening method | By electric hoist, Speed 6-8m/min, with manual remote control |
| 15 | Furnace door seal method | Electric push rod pressure tight seal method |
| 16 | Bogie walking speed | 6-8m/min, with manual remote control |
| 17 | Furnace lining | Refractory all fiber |
| 18 | Consumption index | Heat efficiency at full load η≥40% |
2. Structure introduction
2.1. The skeleton of the furnace body is welded by various large and medium-sized steel sections on site.
2.2. The furnace lining adopts a full fiber structure, which saves about 65% energy compared with the brick furnace. It uses high-quality long-fiber thorn blankets as raw materials, and uses special equipment to make modules, and a certain amount of compression is reserved during the processing process to ensure that the modules are built in masonry. After completion, each ceramic fiber block expands in different directions, so that the modules are squeezed together into a whole without gaps, so as to achieve a perfect heat storage effect. The fiber blocks are fixed by the ceramic nails. The advantages of the product are low thermal conductivity, low heat capacity, excellent corrosion performance, excellent thermal stability, thermal shock resistance and thermal insulation, and the anchors are arranged on the cold surface of the furnace body, which improves the high temperature resistance of the fiber.
2.3. The frame of the trolley is welded by various large-scale I-beams, channel steels, angle steels and thick steel plates. The trolley transmission adopts the combination of electric motor and worm gear reducer to drive the front-end driving wheel transmission through the chain. The refractory masonry of the trolley adopts a high-alumina shaped brick structure, which has good sealing effect with the furnace body and high compressive strength. The trolley and the furnace body are sealed by soft contact, and a labyrinth sand sealing groove and a sand sealing knife sealing device are arranged at the lower part of the trolley.
2.4. Combustion system: several burners are installed on both sides of the oil furnace, and the heat flow reciprocates in the furnace to ensure the uniformity of furnace temperature.
2.5. Smoke exhaust preheating device: a smoke exhaust preheating device is installed at the upper end of the furnace. When the flue gas in the furnace passes through the preheater, it is sent to the cold air by the fan for preheating, and then sent to the burner by the pipeline for combustion support. , and install a manual butterfly valve at the outlet, which can adjust the pressure in the furnace.
2.6. The control system adopts chain control, the digital display shows the temperature, and the contactor controls.
3. Configuration of the electric control system
| No. | Item | Brand |
| 1 | Temperature controller | Shimaden, Japn |
| 2 | Low-voltage electric appliance | Schneider |
| 3 | Electric component | CHINT or DELIXI |
| 4 | Cabinet body | GGD |
| 5 | PLC | SIEMENS |
| 6 | Touch screen | MCGS |
Notes: The above configuration can be changed to brands of equivalent level without noticing the customer due to component availability.
4.Applicable working conditions of natural gas furnace
4.1 The altitude shall not exceed 1000 meters.
4.2 The ambient temperature is in the range of 5-40 ℃.
4.3 The monthly average relative humidity in the use area shall not be greater than 90%.
4.4 There is no conductive dust, explosive gas and corrosive gas that can seriously damage metal and insulation around.
4.5 There is no obvious vibration and turbulence.
