Drying tower with electric heating device

Abstract

The invention provides a drying tower with an electric heating device. The drying tower comprises an air blower and a drying tower, wherein the air blower is connected with the drying tower by an air delivery pipeline, and an electric heating device is arranged on the air delivery pipeline and is used for heating air passing through the air delivery pipeline. According to the drying tower with the electric heating device, the electric heating device is arranged on the drying tower, waste gas emission amount can be reduced, the natural environment can be protected and the operating safety and the utilization rate of the heat source can be improved.

Description

technical field [0001] The invention belongs to the technical field of catalyst preparation for oil refining, and in particular relates to a drying tower with an electric heating device. Background technique [0002] The units of the catalyst production process for oil refining are divided into raw material slurrying, spray molding, roasting, washing, filtering, drying, receiving and other units. [0003] In the prior art, for the spray molding unit in the catalyst production process for oil refining, the drying of the catalyst requires a furnace temperature of 250°C-300°C. In the prior art, a gas-fired furnace is usually used, such as figure 1 As shown, the gas-fired heating furnace is prone to air pollution due to the exhaust gas produced, and the temperature is not easy to control; secondly, because the fuel of the gas-fired heating furnace is gas, it is easy to explode due to gas leakage when the furnace is ignited. Dangerous; again, the thermal efficiency of gas-fired ...

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Problems solved by technology

[0003] In the prior art, for the spray molding unit in the catalyst production process for oil refining, the drying of the catalyst requires a furnace temperature of 250°C-300°C. In the prior art, a gas-fired furnace is usually used, such as figure 1 As shown, the gas-fired heating furnace is prone to air pollution due to the exhaust gas produced, and the temperature is not easy to control; secondly, because the fuel of the gas-fired heating furnace is gas, it is easy to explode due to gas leakage when the furnace is ignited. Dangerous; again, the thermal efficiency of gas-fired furnaces is low, generally in the range of 15%-35%, the main reason is that the exhaust gas of gas-fired furnaces takes away a lot of heat, and it has been tested that the higher the furnace temperature, the lower the thermal efficiency

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