GST-450-1400 trolley type wax removal furnace

GST-450-1400 trolley type wax removal furnace 1. Main purpose of the equipment: used for high-temperature sintering of materials in air, nitrogen, argon atmospheres that comply with the sintering process of this technology, suitable for dewaxing and rubber removal processes of ceramic materials, etc

GST-450-1400 trolley type wax removal furnace

1The main purpose of the equipment is:
Used for high-temperature sintering of materials in air, nitrogen, and argon atmospheres that comply with the sintering process of this technology, suitable for dewaxing and rubber stripping processes of ceramic materials, etc;
IIBasic structure description:
1Equipment Description:
This complete set of equipment is a material carrying trolley inlet and outlet structure, equipped with imported resistance wire heating system, inflation system, smoke exhaust system, measurement and control system, computer control recording system, alarm system, and other components.
2furnace body
The material selection for the furnace lining meets the requirements of the firing temperature. The inner layer is made of 1600 type alumina ceramic fiber board, and the outer layer is made of high-quality alumina silicate refractory fiber cotton, which can reduce the thickness of the kiln body, minimize heat storage and dissipation, and make the trolley furnace have low thermal inertia, which is conducive to automatic control and energy saving.
The furnace door of the trolley is fixed to the bottom trolley, which adopts the automatic entry and exit form of motor-driven wheels. The trolley is equipped with TJM23 high-temperature lightweight Isolaite mullite heat-insulating bricks, which are used for load-bearing in the box bowl, with a load-bearing capacity of ≮ 500kg.
The outer shell of the furnace is a steel structure with a steel plate outer cover, which is stable in structure, has good sealing performance, and has a beautiful appearance.
The overall dimensions of the furnace body in the closed state are: length 1700mm * width 1450mm * height 1550mm, excluding the length of the guide rail;
The overall dimensions after opening the door are: length 2800mm * width 1450mm * height 1550mm;
The size of the control cabinet is: length 450mm, width 600mm, height 1600mm;
The required venue is approximately 3 meters in the opening direction and 2 meters in width;
3heating system
Imported Kangtai A-1 series alloy heating wires are selected, with a continuous working temperature of up to 1400 ℃. Alloy heating wires are arranged on all five sides of the equipment, including the front, back, left, right, and bottom surfaces. The heating and temperature control of each surface are individually controlled by a temperature controller to ensure uniform furnace temperature and reduce uneven wax removal and dewaxing of the products.
The furnace box bowl array is arranged in a single layer of 3 * 3=9, with a total of 27 box bowl arrays on three layers above the trolley. There are gaps around the boxes, and heat is conducted to the internal boxes through radiation.
Air or inert gas is introduced around the furnace to mix and flow the heat inside, further improving the uniformity of heat inside the furnace.
4Air intake and wax removal system
Six sets of intake pipes, flow meters, and intake valves are distributed around the furnace body, independently controlling the flow rate of each pipe during the intake process and adjusting it according to different temperature points.
By introducing fresh air or inert gas into the pipeline, the wax vapor generated by heating materials can be rapidly diluted to eliminate phenomena such as combustion in the furnace due to high wax vapor concentration. Gas is injected while mixing with wax vapor and discharged from the exhaust port on the top of the furnace to achieve rapid wax removal, dewaxing, and sintering.
The furnace top adopts an active centrifugal fan exhaust device, and the chimney pipes in this part are made of 304 stainless steel. The equipment comes with a 2-meter long pipeline. The chimney is equipped with additional parts to be provided by the buyer.
All intake pipes are made of thick walled stainless steel seamless pipes.
5trolley system
The trolley frame is divided into one section for production. The platform frame is welded with square tubes and channel steel I-beams, and steel plates are laid flat.
The end of the trolley shell is equipped with a furnace door sealing platform to ensure the sealing between the furnace door and the trolley, facilitating operation; The trolley shell has sufficient rigidity and strength to ensure that the trolley undergoes minimal deformation during use and travels flexibly and reliably.
On the trolley is TJM23 high-temperature lightweight Japanese Izumorite heat-insulating brick, used for load-bearing in the box bowl, with a load-bearing capacity of ≮ 1000kg.
The trolley adopts a motor-driven chain transmission platform wheel, which moves forward and backward on the track, and has multiple limit sensors to ensure the accuracy of the trolley's stopping position.
The car is operated with one key entry, one key exit, emergency stop, and other functions. Reserve external control terminals.
6Measurement and Control System
(1) Temperature control: The furnace body is divided into 5 temperature control zones, and the heating amount of the alloy heating wire is controlled by thermocouple sensors and temperature control instruments to achieve temperature control.
(2) Adopting intelligent digital temperature control instruments, it can achieve manual and automatic control, and is also equipped with an over temperature sound and light alarm system.
(3) Each heating surface of the alloy heating wire in the furnace is equipped with an SSR solid-state control system. During the control process, the actual furnace temperature PV value detected by the temperature control thermocouple is transmitted to the temperature control instrument through a compensation wire. It is converted with the preset value through PID to obtain the SSR voltage signal, and then the heating amount of the alloy heating wire is controlled by the temperature control instrument. Each heating surface can have its corresponding output ratio set in the temperature controller, and can be individually adjusted for AT self-tuning to obtain appropriate PID parameter values through calculus calculations. Enable each heating surface to achieve precise temperature control based on the actual furnace temperature in that area, thereby achieving precise temperature control in each zone.
(4) The temperature controllers are centrally installed on the control cabinet panel, and five independent temperature controllers are centralized on the computer serial port in the control room through the 485 communication protocol. The computer installed with the "Shanghai Guangshu Industrial Electric Furnace Control System PC End" standalone software can directly control the five independent temperature controllers through the 485 communication cable, including but not limited to the following functions:
5 sets of temperature control with one click operation, maintenance, and stop;
V temperature rise program development, capable of writing 30 temperature control programs to achieve automatic heating, insulation, cooling, shutdown and other functions;
Download the program to the 5-liter temperature controller with just one click;
The computer can save multiple program curves, with a minimum of 50 programs that can be saved;
The computer terminal has functions such as data recording, saving, and printing, including temperature data and temperature control related alarm data;
The computer can be connected to a speaker to achieve alarm audio output function;
Three color sound and light alarm lights can be installed in the control room, connected to the equipment control cabinet via cables, to achieve simultaneous sound and light alarm functions in both the operation room and the control room;
A computer can control all functions of 5 or more similar devices, including separate operation, recording, alarm, etc;