A tunnel kiln structure for preheating zoned hot gases
By introducing three sets of heat conduction ports and a screen structure into the tunnel kiln, combined with a servo motor and a PLC controller, the problems of preheating uniformity and inconvenient cleaning were solved, and the hot gas stratified flow and automatic adjustment were realized, improving the preheating effect and cleaning convenience.
CN224398288UActive Publication Date: 2026-06-23LUOYANG FANGSHAN REFRACTORY CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LUOYANG FANGSHAN REFRACTORY CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-23
AI Technical Summary
Technical Problem
The existing preheating section structure of coal gangue tunnel kilns has problems such as poor preheating uniformity, poor adaptability and adjustment, and inconvenient cleaning.
Method used
It adopts a three-set heat conduction port and screen structure, combined with a servo motor and PLC controller, to realize the stratified flow and automatic regulation of hot gas, and to control the temperature through a fan and temperature sensor, which facilitates cleaning.
Benefits of technology
This method achieves a reasonable stratification of the internal temperature gradient of the preheating zone, ensuring uniform heating of the billet, improving the preheating effect, and simplifying the cleaning process.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224398288U_ABST
Abstract
The utility model discloses a kind of for preheating zone hot gas layering's tunnel kiln structure, including tunnel kiln main body, first heat conduction mouth lower end inlaying connection has temperature sensor, and temperature sensor, first servo motor, second servo motor, heating furnace mechanism and fan are electrically connected with PLC controller.The three groups of heat conduction of the first heat conduction mouth, second heat conduction mouth can be carried out, guide hot gas to form stable stratified flow, so that the temperature gradient of hot gas in different height position in preheating zone is more reasonable, guarantee blank body to be heated evenly in preheating process, and can be filtered by screen, and can be automatically stabilized by fan and temperature sensor Adjusting, preheating effect is better, and tunnel kiln main body can be moved as a whole by second drive gear slot, second drive gear and second servo motor, facilitate internal cleaning use.
Need to check novelty before this filing date? Find Prior Art