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How To Choose Firing Furnace For Enamel Factory — Comparison Between Gas And Electric Enamel Firing Furnace

How To Choose Firing Furnace For Enamel Factory — Comparison Between Gas And Electric Enamel Firing Furnace

  • Clasificación:Noticia de empresa
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  • Tiempo de emisión:2021-08-30
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[Descripción resumida]The enamel firing furnace is the key equipment of the enamel factory. The gas enamel firing furnace and the electric heating enamel firing furnace are the two most widely used enamel firing furnaces on the market.

How To Choose Firing Furnace For Enamel Factory — Comparison Between Gas And Electric Enamel Firing Furnace

[Descripción resumida]The enamel firing furnace is the key equipment of the enamel factory. The gas enamel firing furnace and the electric heating enamel firing furnace are the two most widely used enamel firing furnaces on the market.

  • Clasificación:Noticia de empresa
  • Autor:
  • Fuente:
  • Tiempo de emisión:2021-08-30
  • Visitas:0
Detalles

The enamel firing furnace is the key equipment of the enamel factory. The gas enamel firing furnace and the electric heating enamel firing furnace are the two most widely used enamel firing furnaces on the market. Each has advantages and disadvantages. The following is a description of gas enamel firing The furnace and the electric heating enamel firing furnace are compared in eight dimensions.

1. Investment cost

Electric furnace (hereafter referred to as electric furnace for electric heating enamel firing furnace) The cost of the equipment itself is low, and the ammunition considers the capacity of the transformer and the cost of later expansion.

Gas furnace (hereafter referred to as gas furnace for gas enamel firing furnace) The equipment itself is expensive, but it is not limited by the capacity of the transformer.

 

2. Operating cost and energy consumption

Electric furnaces have higher energy consumption and electricity costs, while gas furnaces are much lower than electric furnaces.

 

In general, the investment of electric furnaces, if added the cost of new transformers, is similar to the investment of gas furnaces. The operating cost saved in the later stage of the gas furnace can quickly recover the initial investment cost.

 

3. Uniformity and controllability of temperature

The cross-sectional temperature difference in the electric furnace is small and can be adjusted. However, the cross-sectional temperature in the gas furnace is not adjustable, and the temperature difference is slightly larger.

 

The resistance band of the electric furnace can be set up and down in multiple layers, and the power can be different; the rated power of the radiant tube section of the gas furnace is relatively consistent.

 

4. Manufacturing process, installation cycle, and later maintenance

The electric furnace is relatively simple, the delivery period is short, and it needs regular maintenance in the later period. The gas furnace equipment has complex structure, long delivery period, and simple and convenient maintenance.

 

The resistance band of the electric furnace is easy to oxidize, corrode, break, and short-circuit the connection; it needs regular maintenance and replacement, about once a year; the material of the gas furnace radiant tube is good, the service life is long, up to 5 to 8 years, and the maintenance is relatively small.

 

5. Power adjustment and convenience

The electric furnace has a narrow range and can only be adjusted down, and the gas furnace has a large adjustment range.

 

The rated power of the electric furnace resistance band is fixed, which can only be adjusted small but not large; and the power of the gas furnace burner can be adjusted according to actual needs, and the adjustment range is large, which can meet the needs of use.

 

6. Convenience of waste heat utilization

The waste heat from the electric furnace is inconvenient to use as the heat source of the drying furnace, while the waste heat from the gas furnace can be fully utilized, and the drying furnace does not require an additional heat source.

 

Because the product structure is different, the drying furnace of some products cannot be placed on the top of the firing furnace. When using an electric furnace, the drying furnace needs an additional power distribution heating hot air circulation system; when using a gas furnace, the drying furnace does not need a separate burner The system uses the waste heat of the exhaust gas of the radiant tube of the gas furnace and adds a hot air circulation fan.

 

7. Production restrictions

If the capacity of the electric furnace allows the transformer, the electric furnace is also easily affected by the limited electricity. Generally, the furnace is turned on more at night. As long as the gas furnace has a gas source, it will not be affected by other conditions.

 

Due to the shortage of power supply, the electric power of the electric furnace is large. As long as the power is limited, the electric furnace cannot be turned on; while the gas furnace is not affected because of the low power consumption. As long as the liquefied gas or natural gas is provided, it can be produced as usual.

 

8. Production safety

The electric furnace is equipped with over-temperature, over-current, short-circuit, grounding protection and alarm devices to ensure safe production. The gas furnace is equipped with over-temperature, over-current, short circuit, grounding, gas high and low pressure, combustion-supporting low wind pressure, gas valve group internal leakage detection, protection and alarm devices to ensure safe production.

 

The burner of the gas furnace is equipped with a full-featured combustion safety control system: including pre-sweeping before ordering, self-checking of gas pipeline internal leakage, automatic ignition, flame monitoring, flameout protection, interlocking alarm and exhaust gas sweeping; gas main pipeline has been set up Pressure monitoring switch can automatically cut off the main gas solenoid valve to protect the gas system.

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