First, the body composition:
Furnace shell: 2mm cold-rolled steel plate is spliced and spliced. The color of the furnace shell is white; there are yellow safety rails around the furnace roof.
Shell skeleton: Welded after rust-proof treatment of Q235 channel steel, angle steel, square pipe and other sections, and the splicing parts are connected by threads and positioning pins.
Furnace lining body: The furnace roof, furnace side and back wall are all made of fiberglass lining structure, all filled with low thermal conductivity aluminum silicate fiber cotton lining, high-quality galvanized steel with a thickness of δ2.0mm
Furnace liner: It is made by splicing high-quality stainless steel plates with δ = 2.0mm, and the joining plates are connected by stainless steel screws, stainless steel rivets, and argon arc welding.
Liner skeleton: It is made of channel steel, square tube and other section steel after derusting and welding. The surface is sprayed with W61 series silicone temperature-resistant paint (temperature-resistant 320 ° C), and expansion joints are provided at a certain distance to reduce thermal deformation.
Chassis: It is made of channel steel, angle steel and other section steel after rust removal treatment, and the surface is sprayed with anti-rust paint.
Air supply room: Adjustable air outlets are evenly arranged on each air supply room.
Insulation material: The inner and outer welding plates are filled with high-density and high-quality aluminum silicate insulation cotton and mineral wool insulation boards.
Sealing material: The door frame is sealed with ceramic rope.
Pressure relief device: Pressure relief valve is installed on the back of the oven.
Intake and exhaust device: The furnace body is equipped with an intake and exhaust device, which can control the amount of intake and exhaust, which is good for insulation and drying.
Steel Ladder: A fixed steel ladder is designed on the back of the furnace body for maintenance personnel to climb to the top for maintenance.
Grounding device: a reliable grounding device must be installed on the furnace body to protect personal safety.
Oven door: adopts the manual double door opening method, and the furnace door has an adjustable pressing mechanism to ensure a good seal between the furnace door and the furnace body. There is an observation window on the door to observe the dryness of the workpiece at any time.
热风循环系统： Two hot air circulation system:
Three high-volume centrifugal fans are installed on the top of the oven, which blows the wind into the air ducts on both sides, absorbs the heat of the electric heater and the steam heater in the air duct, and blows to the workpiece through the lower deflector of the furnace room. The air inlet of the fan forms a forced circulation of hot air.
Heating method: electric heating tube
Blowing motor: 3 high temperature resistant motors for oven, motor model: Y160M-4P-11, power: 11KW, insulation class: H class, protection class IP54.
3 /h；功率：11 KW。 Blowers: 3 high-temperature low-noise centrifugal blowers, each with an air volume of 20,000m 3 / h and a power of 11 KW.
Electric heater: power 180KW, quantity 90, 2KW / support.
排气系统： 1. Exhaust system:
The top of the oven is provided with a forced exhaust device. The exhaust gas in the furnace can be manually and automatically discharged according to the process requirements. The forced exhaust device is provided with an exhaust port, which is connected to the outdoor by a smoke pipe.
3 /h，里外排气管采用快速可拆结构，以便于及时清理内部绝缘漆。 Exhaust fan: set at the top of the oven, the exhaust air volume is 5000 ～ 8000m 3 / h, and the inside and outside exhaust pipes adopt a fast removable structure to facilitate timely cleaning of the internal insulation paint.
Timing exhaust control: automatic timing intermittent (ONO-15min, OFFO-15min) and timing opening and closing exhaust system. It can be set by the control system.
电控系统： 2. Electric control system:
There are three types of system control methods: central control room automatic control, on-site manual control, and on-site automatic control.
On-site manual control mode: This mode is mainly used for equipment maintenance and commissioning.
Under the on-site man-machine interface automatic control mode, the operator controls on site, and the control system can automatically complete the product drying process.
In the computer control mode of the central control room, the operator operates in the central control room, and the control system can automatically complete the product drying process.
The computer can display the working status of each fan. As long as one blower stops, the heater stops working. At the same time, it also has a friendly Chinese-human interface, which uses graphics and icons to enable managers to easily use the mouse and keyboard to manage and control the system. Through the switching of the monitoring screen, data query, status query, control management, etc. Kind of operation. During the use of the equipment, all operating parameters such as temperature, and have the function of archiving, monitor the drying process, can form a curve display, save and print. Historical data can also be queried in time, and the data can be stored for more than 5 years.
The control system of the circulating fan of the oven requires heating interlock, that is, the air is blown first and then heated to prevent the heater from burning out and causing accidents. At the same time, when the industrial computer is in a fault state, various operations can also be performed manually.