CN-224230688-U - Continuous chain belt type sintering furnace device

Abstract

The application discloses a continuous chain belt type sintering furnace device which comprises a chain belt conveying mechanism and a sintering device, wherein the chain belt conveying mechanism comprises a chain belt, a motor and a chain belt rotating shaft, the sintering device comprises a sintering furnace body, a feeding port double-ignition wire, a double-oxygen content analyzer and a discharging port double-ignition wire, a sintering temperature zone of the sintering furnace body is provided with a plurality of temperature control thermocouples and a plurality of monitoring thermocouples, the feeding port double-ignition wire is arranged at a cavity inlet of the sintering furnace body, and the double-oxygen content analyzer and the discharging port double-ignition wire are arranged at a cavity outlet of the sintering furnace body. The application avoids the problem of unqualified product quality caused by abnormal temperature area due to failure of the temperature control thermocouple by the temperature control thermocouple and the monitoring thermocouple. And the problem of unqualified product quality caused by automatic disconnection of hydrogen due to failure of a single oxygen content analyzer and a single ignition wire is avoided through the double oxygen content analyzer and the double ignition wire.

Inventors

• Guo zilu
• JIN MINGXU
• YANG WANKUN
• ZHAO CHUNGUANG
• MA YUNZHANG
• LIU SIHAN
• ZHANG HUAQIAN
• GENG XUEJIAN
• ZHANG JIANJUN
• ZHOU QI
• WU JINGYI
• ZHAO YULIANG
• SUN ZHENLONG
• PAN HUIPENG
• WEI ZHI
• Miao Baoming
• PAN FENG
• LI HONGGANG
• LI YUNJIE
• ZHANG YANAN
• WU ZHIQIANG
• WANG YE
• MENG FANDONG
• GU ZICHEN

Assignees

• 铁科纵横（天津）科技发展有限公司
• 中国铁道科学研究院集团有限公司
• 北京纵横机电科技有限公司
• 中国铁道科学研究院集团有限公司机车车辆研究所

Dates

Publication Date

20260512

Application Date

20250522

Claims (10)

1. 1. A continuous chain belt type sintering furnace device is characterized by comprising a chain belt conveying mechanism and a sintering device; the chain belt conveying mechanism comprises a chain belt, a motor and a chain belt rotating shaft; The sintering device comprises a sintering furnace body, a feeding port double ignition wire, a double oxygen content analyzer and a discharging port double ignition wire, wherein a sintering temperature zone of the sintering furnace body is provided with a plurality of temperature control thermocouples and a plurality of monitoring thermocouples; The double ignition wires of the feeding port are arranged at the inlet of the chamber of the sintering furnace body, and the double oxygen content analyzer and the double ignition wires of the discharging port are arranged at the outlet of the chamber of the sintering furnace body.
2. 2. The apparatus of claim 1, wherein the sintering temperature zone comprises a plurality of sub-sintering temperature zones, each sub-sintering temperature zone being provided with a temperature control thermocouple and a monitoring thermocouple.
3. 3. The apparatus of claim 1, wherein the feed inlet double ignition wires are connected in parallel.
4. 4. The apparatus of claim 1, wherein the discharge port double ignition wires are connected in parallel.
5. 5. The apparatus of claim 1, wherein the dioxygen content analyzers are connected in parallel.
6. 6. The apparatus of claim 1, wherein the sintering temperature zone further comprises a plurality of heating resistors, one heating resistor for each sub-sintering temperature zone.
7. 7. The apparatus of claim 2 wherein adjacent sub-sintering temperature zones are connected.
8. 8. The apparatus of claim 2, wherein the sintering temperature zone is connected to a cool down zone of the sintering furnace body.
9. 9. The device of claim 6, further comprising a central control system, wherein the motor, the feed inlet double ignition wire, the dioxygen content analyzer, the discharge outlet double ignition wire, the plurality of temperature control thermocouples, the plurality of monitoring thermocouples and the plurality of heating resistors are respectively and electrically connected with the central control system.
10. 10. The apparatus of claim 1, wherein the strand passes through a chamber of a sintering furnace body, the strand being connected to the motor.

Description

Continuous chain belt type sintering furnace device Technical Field The application relates to the technical field of powder metallurgy, in particular to a continuous chain belt type sintering furnace device. Background Continuous strand sintering furnaces are sintering equipment common to the powder metallurgy industry, typically consisting of multiple temperature fields, with a temperature zone length of typically 10 meters or more. The middle part of each temperature field consists of a heating device and a temperature control thermocouple. In the process of sintering the product, hydrogen is required to be introduced into the product for reduction, and the oxygen content is monitored in real time in the process of introducing hydrogen so as to ensure the safety in the hearth. The hydrogen gas which is not oxidized can be ignited by the ignition wire of the exhaust port to ensure the safety during sintering. At present, the temperature control mode of the existing continuous strand sintering furnace adopts a temperature control mode of a single thermocouple, namely, one thermocouple is arranged in each temperature field to control the sintering temperature. However, when the temperature control thermocouple in any one of the temperature fields fails, the quality of the batch of products is not acceptable because the temperature area is too long and the failed temperature control thermocouple cannot be rapidly monitored. Furthermore, existing continuous strand sintering furnaces generally employ a single oxygen content analyzer to detect the oxygen content in the furnace. When a single oxygen content analyzer fails, hydrogen can be forcibly disconnected to ensure the safety in the hearth, and the disconnection of the hydrogen can lead to unqualified product quality in the hearth. In addition, the existing continuous strand sintering furnace adopts a single ignition wire to ignite residual hydrogen, and when the single ignition wire fails, in order to ensure that hydrogen which is not completely oxidized does not leak into a workshop environment, the sintering equipment can forcedly break the hydrogen, and the breaking of the hydrogen can cause unqualified product quality in the furnace. Accordingly, the inventor has developed a continuous strand sintering furnace apparatus to overcome the shortcomings of the prior art by years of experience and practice in the relevant industry. This section is intended to provide a background or context to the embodiments of the application that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section. Disclosure of utility model Aiming at the problems in the prior art, the application provides a continuous chain belt type sintering furnace device which is used for solving the problem that the failure of a temperature control thermocouple of any temperature field cannot be detected in time and avoiding the problem that the quality of products is unqualified due to the abnormal temperature area caused by the failure of the temperature control thermocouple. The continuous chain belt type sintering furnace device comprises a chain belt conveying mechanism and a sintering device; the chain belt conveying mechanism comprises a chain belt, a motor and a chain belt rotating shaft; The sintering device comprises a sintering furnace body, a feeding port double ignition wire, a double oxygen content analyzer and a discharging port double ignition wire, wherein a sintering temperature zone of the sintering furnace body is provided with a plurality of temperature control thermocouples and a plurality of monitoring thermocouples; The double ignition wires of the feeding port are arranged at the inlet of the chamber of the sintering furnace body, and the double oxygen content analyzer and the double ignition wires of the discharging port are arranged at the outlet of the chamber of the sintering furnace body. Preferably, the sintering temperature zone comprises a plurality of sub-sintering temperature zones, and each sub-sintering temperature zone is provided with a temperature control thermocouple and a monitoring thermocouple. Preferably, the double ignition wires of the feeding port are connected in parallel. Preferably, the discharge port double ignition wires are connected in parallel. Preferably, the dioxygen content analyzers are connected in parallel. Preferably, the sintering temperature zone further comprises a plurality of heating resistors, and each sub-sintering temperature zone is provided with one heating resistor. Preferably, adjacent sub-sintering temperature zones are connected. Preferably, the sintering temperature zone is connected with the cooling zone of the sintering furnace body. Preferably, the device further comprises a central control system, wherein the motor, the feeding port double ignition wire, the double oxygen content analyzer, the discharging port double ignition wire, the plurality of temperature