Residual heat utilizing pusher furnace

Abstract

The invention discloses a residual heat utilizing pusher furnace. The residual heat utilizing pusher furnace comprises a furnace body, wherein a feeding gate and a discharging gate are arranged at the front end of the furnace body, an out-of-furnace translation device is arranged in front of the furnace body, a pre-heating and cooling chamber is formed in the inner front part of the furnace body, two parallel material channels are arranged in the middle of the furnace body, an in-furnace translation channel is arranged at the tail part of the furnace body, the pre-heating and cooling chamber and the in-furnace translation channel are respectively communicated with the front ends and the rear ends of the two material channels, conveying rollers are arranged in the pre-heating and cooling chamber and the material channels, an in-furnace translation mechanism is arranged in the in-furnace translation channel, a front pusher and a discharging mechanism are arranged at the front end of the out-of-furnace translation device, a rear pusher is arranged at the rear of the furnace body, and a push rod of the pusher extends into the furnace body. The residual heat utilizing pusher furnace has the benefits that technical problems in the prior art, such as large occupying area of the furnace body, difficulty in material box return, low energy utilization rate and severe operating environments are effectively solved, experimental accounting shows that energy is saved by about 35% in comparison with the prior art, the structure is simple, and the operation is convenient.

Description

technical field [0001] The invention relates to a push rod type furnace with waste heat utilization, which belongs to the field of heat treatment technology. Background technique [0002] At present, most domestic push rod furnaces adopt a straight structure, that is, the input and output of the equipment are at both ends of the furnace body; the cooling chamber for the workpiece is generally installed at the output end to cool the workpiece, which is convenient for manual unloading. If it is necessary to send the material frame back to the feeding end, a set of material frame return mechanism is also required. Such a structure has many defects; for example: firstly, the equipment occupies a large area, and a separate material frame recovery mechanism needs to be installed next to the equipment; secondly, the temperature of the workpiece is relatively high (generally around 550°C), and the fan is used to cool it. A large amount of energy is taken away with the exhaust gas, ...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a pusher type furnace with waste heat utilization, which solves the technical problems in the prior art that the furnace body occupies a large area, the material frame is difficult to return, the energy utilization rate is low, and the operating environment is harsh

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