Rotary Kiln Thrust Device.pptx
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The rotary kiln thrust device controls the axial movement of the rotary kiln using a hydraulic cylinder. It keeps the kiln within ±5mm of the centerline, and will alarm at ±10mm. If the microswitches fail, an additional limit switch will trip the kiln at ±15mm. The thrust device uses oil pumps and directional valves to push the cylinder in the upward or downward direction as needed to return the kiln to the centerline based on signals from microswitches along the kiln's path.
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◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【微bwp0011】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Design and optimization of ion propulsion drone
Electric propulsion technology is widely used in many kinds of vehicles in recent years, and aircrafts are no exception. Technically, UAVs are electrically propelled but tend to produce a significant amount of noise and vibrations. Ion propulsion technology for drones is a potential solution to this problem. Ion propulsion technology is proven to be feasible in the earth’s atmosphere. The study presented in this article shows the design of EHD thrusters and power supply for ion propulsion drones along with performance optimization of high-voltage power supply for endurance in earth’s atmosphere.
Embedded machine learning-based road conditions and driving behavior monitoring
Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
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Rotary Kiln Thrust Device.pptx
- 2. Overview The Thrust Device is an important part of a rotary kiln It is designed to control the axial movement of the rotary kiln Two forces acting on rotary kiln • Radial force (slides kiln in downward direction) • Axial Force (overcome the sliding force)
- 3. Overview Rotary kiln is adjusted by • Supporting roller • Thrust device Supporting rollers absorbs 10-50% of the axial load Supporting rollers can’t force the kiln in upward direction Remaining load is absorbed by the kiln thrust device.
- 4. Overview Hydraulic thrust device guides the kiln in axial direction. Thrust device keeps the rotary kiln within neutral zone of ± 5mm from centerline. Alarm will be generated if kiln moves up to ±10 mm of its centerline. If the micro switches are failed then an additional limit switch at ±15 mm will trip the rotary kiln.
- 5. Working (Upward) If the kiln moves downward from the centerline, then • Rollers actuate a micro-switch • Oil pump starts • Coil A of directional valve is energized • The oil forced the hydraulic cylinder which further force the kiln in upward direction • On reaching the centerline, micro switch actuates which cut out the pump and the coil A of the directional valve de-energized • Hydraulic pressure then exerted on the non-returned valve • This operating condition prevails till the kiln return to its centerline
- 7. Working (Downward) If the kiln moves upward from the centerline, then • Rollers actuate a micro-switch • Oil pump starts • Coil B of directional valve is energized • Pump pressure will now open the non-return valve • Oil from the hydraulic cylinders flows back to the tank • Pressure in the cylinder becomes low then kiln slide down to centerline • When kiln returns to the centerline, micro-switch actuates, pump stops, Coil B de-energized and kiln moves to central position
- 9. Operation of Micro-Switches If the kiln moves down from the centerline • S2 (Reset Coil A) • S1 (5mm Down) • S7 (10mm Down) • S8 (15mm down) If the kiln moves up from the centerline • S3 (Reset Coil B) • S6 (5mm Up) • S4 (10mm Up) • S5 (15mm Up)
- 10. WORKING
- 11. ThankYou. .