Preparation method of waste heat recovery device

The invention discloses a preparation method of a waste heat recovery device. The waste heat recovery device is composed of an air blower, a heat insulation air guide pipe and an automatic temperature controller. The preparation method of the waste heat recovery device comprises the steps of arranging all parts of the waste heat recovery device and synchronously coordinating a ceramic firing kiln, and specifically comprises the following steps: the ceramic firing kiln, the air blower, the heat insulation air guide pipe and the automatic temperature controller are assembled and connected in a butt joint mode, and the connection sealing states of all part connectors are checked; testing is carried out by contrasting with parameters of a cold machine; testing is carried out by contrasting with parameters of a heat machine; checking and accepting of the waste heat recovery device is carried out, and the checking and accepting of the waste heat recovery device takes data after testing contrasting with the paramete