Horizontal Convection and Radiation Flat Glass Tempering Furnace Machine
Horizontal Convection & Radiation Flat Glass Tempering Furnace Machine 1、Product parameter of the flat glass tempering furnace machine a) mechanical： b) electric parts: c) specification of glass： Total power 2、Product feature and application of the flat glass tempering furnace machine Main...Send InquiryChat Now
Horizontal Convection & Radiation Flat Glass Tempering Furnace Machine
1、Product parameter of the flat glass tempering furnace machine
Ceramic roller drive belt
Insulating material (high aluminum insulating board)
France or U.S.A.
Sazn , Airtac
Harbin, Luoyang , Wafang dian
Wuhan Iron& Steel plant
b) electric parts:
Analog output block
Industrial control computer
Temperature measurement module
Soleplate of temperature measurement module
data output module
CPU of data output module
c) specification of glass：
4mm half quenching
Finished product rate
Meet international standard
The output will be more or less because of the different size, origin and color of the glass. Bigger output with smaller glass size , deep color
Request of raw glass sheet
High quality float glass without bladder , sundries ; glass is after chamfering , edging ,washing and drying
Hot fan power
Hot fan amount
Ceramic roller amount
2、Product feature and application of the flat glass tempering furnace machine
Main Technical Feature
The heaters of tempering furnaces in our company is arranged by different ways since different oven size. Such arrangement makes simple heater structure, convenient installation and longer service life.
Heaters have single-point adjust-control function. Each heater has sole thermo-couple to measure temperature, and can be set temperature and power alone, which great possibly even temperature. Heaters are from nickel-chromium and service long time. Over-hung installation mode is easier to maintain. Each heater installation is independent, it will not affect others when to replace the trouble one.
The lower part is with our streamlined swing-shape radiant panel which can radiate the energy from lower heaters to oven hearth for effective heating result. There is no radiant panel in upper part, so the infra-red energy from upper heaters can radiate to upper surface of glass for fast heating absorption. Thus can reduce glass staying time in oven and improve glass surface quality, especially coated glass, which can avoid film-off phenomenon of glass surface. In addition, we add intelligent. When thicker glass comes to heating oven, operator can set power of glass entering and power gain speed.
It can set late-start heating when thicker glass comes to oven, namely, after glass finishes crisis time it start to heat, which can avoid glass breaking rate.
Reasonable radiant panels arrangement at lower part can effectively radiate energy and insulate broken glass.
(2)：Heat preservation structure
Full-enclosed heating oven adopts good quality heat insulation material, which has high performance heat preservation, heat rising from 20℃-700℃ needs 4-8 hours. It is lower 10-15℃ than per hour for natural temperature-reduction. So the energy consumption is very low. At oven surface there is high-grade ceramic high-alumina plate, which is with lighter weight and high hardness and longer service life, can solve the problem of dregs-off once heat-insulation material pulverization.
Over-fast and/or over-early heating absorption at glass lower surface can cause over-long time glass up-bent, which can make “White mark” at glass lower surface. Forced convection can change such sate more, but the result at earlier time when comes into oven is not palpable. Since of this, we make some modification in control. 1. Speed-change technology. When the glass just comes into heating oven, we make its swing speed very slow, which can possibly reduce glass slippage on rollers. At this time glass is hard state, it is impossible to have roller mark. 2. After glass comes into oven the lower heaters stop working. The stop time can be set in computer. Thus can defer heating absorption speed of glass lower surface, shorten glass up-bent time, reduce glass up-bent rate. Because of very low speed of glass movement, the possibility of mark causing is very limit. So, this will have better result to delete “white mark” in glass.
(4)：Position shift technology
Inherent principle of reciprocating type tempering furnaces determines some defects inevitable which will be caused during glass heating. For example, glass pause when direction-change. This kind of pause takes certain damage of glass quality. To reduce such damage, we adopt position-shift technology. We can’t delete glass pause when direction-change, but we set different pause position for glass, that is to say, the touch points of each glass pause with ceramic rollers will be different, which is intermittent cycle alternant. It will repeat once after more than ten times cycles. This will greatly reduce glass wave rate.
(5)：Forced convection system
The forced convection system consists of convection fan, air-in tube, air-out tube, etc. each motor has been equipped with the inverter, which could control the volume of convection air through adjusting the rotating speed of motor, thus the heating on glass surface from the convection and radiation could be kept on a reasonable proportion. This design could make the heating speed faster and also keep the advantage that the temperature could be adjusted in separate zones which used for our normal furnace.
(6). Convenient Maintenance
The heating oven is divided into top and bottom part, the top part could move up & down freely, which is very convenient for maintenance. The emergency cooling system on top of the furnace is used to cool down the oven quickly, which makes the maintenance more easy and convenient.
The ceramic rollers for heating section is from Vesuvius, the rollers has the smooth finish and longer service life.
(6.2): Electric Control Elements:
The temperature collecting module adopts the A/D conversion module. There is one temperature-measuring control box at the side of oven, the thermocouple cables are connected into this box and connected with the temperature-measuring module, after conversion, it needs only one piece of two-core shielded wire which could transfer the digital temperature signal to the temperature control module. This design could avoid the interference to the temperature collecting from the site equipments, such as, inverters or other equipments with big power.
The temperature control module is a small computer, it could receive the temperature signals which collected by the temperature-collecting module, then it could control the heaters’ on/off according to the control requirements (control requirements consist of temperature set value and power set value), the control accuracy is under 3℃.
(7). Control program
The control program is researched and developed by ourselves. Since we have the deep research on the glass tempering processes, when we make the program, we could make it give a better service for the operation process. We divided the parameters into two kinds: operator’s parameters and engineer’s parameters. Operator’s parameters refer to the ones which the operators adjust usually, engineer’s parameters refer to the ones which affects the glass position and moving speed, etc. also, there are some high-grade parameters which is set by the manufacturers and we called them as “administrator parameters”. For the “administrator parameters”, we could hand them over to the user’s administrator for the maintenance.
(1)．The operating interface is connected to the glass tempering machine closely. With the control interface, it is very convenient to monitor the running situation of each section.
(2)．Easy parameters-adjustment interface which makes the operation easily.
(3)．Fully independent working mode of host computer and PLC
The temperature control module is a small computer, and there is the temperature-control program inside it. If the host computer transfer the temperature set value and power set value of each heater to this module, this small computer could control the temperature of the whole oven. At that time, even the host computer stop working or damaged, if only there is power, this kind of glass could be tempered continuously, in other words, the host computer only has the function for parameters setting and monitoring, it is out of control, which could improve the safety greatly.
(4).The program has the reliable stability and friendly man-machine interface, and has much warning function for abnormal situation (such as joints of encoder loose, parameter setting wrong, etc) and has warning note for maintenance man checking.
(5).Mass memory for parameters-saving, since the program adopts “ACCESS” abase software from Microsoft Office, the data could be deleted and called out at will..
As we have both the price and quality advantage , our machinery sells well all over the world. We factory can help you win the market and produce the goods as customers' demands.
Q:What is the minimum order quantity?
A:Minimun order quantity 1set
Q:What kind of payment do I use?
A:payment Irrevocable L/C at sight or T/T (30%down payment and 70%balance payment against the scan B/L).
Q:When the manufacturers shipped the product?
A:delivery term within 15 days after get the down payment.
Shandong Boxing Huaxing Import and Export Co.,Ltd. is the wholly owned subsidiary of Shandong Huaxing Machine Co.,Ltd. Founded in 1957, Shandong Huaxing Machinery Co., Ltd. is a national high tech enterprises with research and develop, production and trade in one body. Formerly we were called Boxing Machinery Factory, and started to produce stone machines in 1985. In July, 2002 we were transformed from state-owned enterprises into joint-stock enterprises. In September, Huaxing industrial park was started to build in the same year. In June 2009, company began to construct Shandong Huaxing Scientific Development Zone. January 26th, 2011 we succeeded in being listed on TSX in Canada, becoming the first overseas listed company of Boxing and achieving the span from product management to capital management.
Our company covers an area of 1,400,000 square meters, and total asset is 40 billion and our employees are more than 2,100. Production and management are involved in the field of machinery manufacturing, steel structure, metal logistics and e-commerce, with an annual output of 10,000 pieces (sets) of stone machinery, 50,000 units (sets) of agricultural machinery, 300,000 tons of steel structure, 300,000 tons of corrugated web beam production capacity. The company has import and export rights, and establishes a number of offices or branches at home and abroad. Products are sold in nationwide and Asia, Europe, Africa, more than 50 countries. Each economic indicator is in the forefront of the industry. We have won the honors like State Torch Plan Key High-Tech Enterprises, China Construction Bank-level key customer, China Famous Brand, steel structure engineering contractor first-class qualification, China stone machinery leading enterprises, China's steel trading businesstop 100 companies and many others.