CN201473446U - Tempered Glass Homogenizing Furnace - Google Patents

Abstract

A toughened glass homogenizing furnace relates to the structural improvement on a homogenizing furnace for performing self-explosive prevention processing to the toughened glass. The utility model provides the toughened glass homogenizing furnace which not only saves energy and but also improves production efficiency. The toughened glass homogenizing furnace comprises a furnace body; a furnace door and an air cooler are arranged at two ends of the furnace body respectively; the toughened glass homogenizing furnace adopts the structural features that a thermal insulation layer is arranged at the periphery of the furnace body; thermal circulation air flues are arranged in the thermal insulation layers on two sides and at the top of the furnace body; a heater and a circulating fan are arranged at the bottom and at the top of the thermal circulation air flues respectively; and a cooling circulation air flue is arranged between thermal circulation air flues at the top of the furnace body.

Description

Tempered Glass Homogenizing Furnace

Technical field:

The utility model relates to an improvement in the structure of a homogeneous furnace for anti-self-explosion treatment of tempered glass.

Background technique:

The equipment of the utility model is a special equipment for anti-self-explosion treatment of tempered glass; the tempered glass will still self-explode under the condition of no external force. The reason is that nickel sulfide is in a high temperature state (α-Nis) during the heating stage of tempering treatment. In the rapid cooling stage of tempering, the high-temperature state (α-Nis) has no time to transform to the low-temperature state (β-Nis). This crystalline transition persists from minutes after processing to more than a decade after installation. The transformation of (α-Nis) into (β-Nis) will cause volume expansion, break the stress balance inside the glass, and cause the tempered glass to self-explode. To make the treated tempered glass no longer self-explode. The tempered glass is placed in a homogeneous furnace for heating, heat preservation and cooling process. Greatly improve the safety and reliability of tempered glass.

Tempered glass products have a wide range of applications: architectural glass, various automotive glass, solar cell glass, photovoltaic building integrated glass, etc.

So far, general-purpose tempered glass has not been homogenized. But with the application of toughened glass in high-end fields, such as; high-speed trains, solar cells, integrated photovoltaic glass and so on. Regardless of performance, economy and safety, tempered glass must have sufficient safety and reliability. In recent years, many equipment manufacturers at home and abroad are developing processing equipment for tempered glass homogenization.

Due to the homogenization process of tempered glass, the requirements for temperature uniformity and temperature rise and fall rate are very high. Otherwise, the desired effect cannot be achieved. Therefore, the tempered glass homogenization equipment that comes out now has the problems of high energy consumption and low processing efficiency. The purpose of uniform temperature during processing is achieved by long-term slow heating and cooling.

Utility model content:

The utility model aims at the above problems and provides a tempered glass homogenizing furnace which not only saves energy but also improves production efficiency.

In order to achieve the above object, the utility model adopts the following technical scheme. The utility model includes a furnace body. The two ends of the furnace body are respectively provided with a furnace door and a cooling fan. Heat circulation air ducts are arranged in the thermal insulation layer on the side and the top, heaters and circulation fans are respectively arranged at the bottom and top of the heat circulation air ducts, and cooling circulation air ducts are arranged between the heat circulation air ducts at the top of the furnace body.

The beneficial effects of the utility model:

1. The utility model can achieve good temperature uniformity:

Because the guide plate is designed on the inlet and outlet of the thermal circulation air duct in the furnace, the airflow direction of the circulating air is parallel to the glass surface, and the strip-shaped outlet of the guide plate is aligned with the space between each piece of glass, so that the circulating air flow passes through each piece of glass evenly without resistance interval to ensure the same air velocity. Heat equilibrium is reached quickly and the temperature difference between the various positions of the glass and the various surfaces of the same glass is minimized. The heat circulation air duct is designed in accordance with the air flow structure to achieve the best circulation effect.

2. Good temperature control accuracy can be achieved in the heat preservation processing stage:

Since the furnace is divided into five sections in the length direction, each section has a separate heating and temperature control system and a thermal balance system to control the temperature uniformity of each point in the furnace within ±1.5°C (while the temperature control accuracy of similar equipment is within ±3°C), It can effectively guarantee product quality and improve production efficiency.

3. Minimize heat loss during heating and heat preservation stages:

Because the circulation blower of the utility model is installed in the insulation layer, the heat loss generated by the circulation blower outside the insulation layer is eliminated. Energy consumption is reduced and cycle times are shortened.

4. Shorten the processing cycle time and improve production efficiency:

Due to the use of the cooling fan, the purpose of discharging different heat in different cooling stages is achieved by changing the air flow of the cooling fan, so that the cooling rate of the high temperature section and the low temperature section are the same. The time for cooling down is greatly shortened. The processing cycle time of the utility model equipment is 78 hours when the loading capacity is 5000Kg.

Description of drawings:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the A direction view of Fig. 1;

Fig. 3 is the B-B sectional view of Fig. 1;

Fig. 4 is a C-C sectional view of Fig. 2 .

Detailed ways:

The utility model comprises a furnace body 2, a furnace door 1 and an air cooler 4 respectively arranged at two ends of the furnace body 2, an insulation layer 7 is arranged in the periphery of the furnace body 2, and an insulation layer 7 is arranged on both sides and the top of the furnace body 2 The heat circulation air duct 8, the bottom and the top of the heat circulation air duct 8 are respectively provided with a heater 6 and a circulation fan 3, and a cooling circulation air duct 9 is arranged between the top heat circulation air ducts 8 of the furnace body 2.

The ventilation holes 10 of the top heat circulation air duct 8 and the cooling circulation air duct 9 are arranged on the top guide plate 11 of the furnace body 2 .

The utility model can adopt electrical automatic control, which is a general technique realized by ordinary technicians in the same industry, so it will not be repeated here.

Below in conjunction with accompanying drawing illustrate a course of action of the present utility model:

When the furnace door 1 is open, the glass 12 to be processed is placed on the vehicle frame 13 and pushed into the furnace body 2; the furnace door 1 is closed and locked, and the heater 6 and the circulation fan 3 are turned on to start the heating process; the heating rate Automatically controlled by the program. After reaching the temperature required by the process, stop heating, turn off the heater 6, and enter the heat preservation stage. During the heat preservation process, the circulating fan 3 continues to work, and the heat supplement is automatically controlled by the program. After the holding time specified by the process is reached, the cooling fan 4 is turned on, and the cooling rate is automatically controlled by the program.

Claims (2)

1. toughened glass homogeneous stove, comprise body of heater (2), the fire door (1) that the two ends of body of heater (2) are provided with respectively, cold blast engine (4), it is characterized in that being provided with thermal insulation layer (7) in body of heater (2) periphery, be provided with thermal cycling air channel (8) in the thermal insulation layer (7) at body of heater (2) both sides and top, bottom, the top in thermal cycling air channel (8) is respectively arranged with well heater (6), recirculation blower (3), is provided with refrigeration cycle air channel (9) between the thermal cycling air channel, top (8) of body of heater (2).

2. toughened glass homogeneous stove according to claim 1 is characterized in that the ventilation hole (10) of thermal cycling air channel, top (8), refrigeration cycle air channel (9) is arranged on body of heater (2) the top guide plate (11).

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