The application of high-temperature flue gas boiling furnaces in the calcium carbide industry, particularly in the production process of Li Fucai and Guo Xiafei, has proven to be an efficient and environmentally friendly solution. This type of furnace is a key unit operation that enhances heat and mass transfer efficiency, making it widely applicable in chemical industries. The high-temperature flue gas boiling furnace stands out due to its simple structure, ease of adaptation, and ability to produce clean, high-energy hot gas, making it an ideal alternative to traditional hot-blast stoves.
The calcium carbide industry, being one of the older industrial sectors, relies heavily on coke as a raw material rather than a fuel. Although the moisture content of coke in national standards is set at 6.0%, this is primarily for acceptance purposes rather than quality assessment. As a result, there are often no effective measures to prevent moisture during transportation, leading to higher moisture levels in the industry. To meet production requirements, drying devices are necessary. In recent years, with increased environmental regulations, the industry has been moving toward closed-system production processes, which demand even stricter control over coke moisture, typically below 2.0%.
During the production of calcium carbide, gas is generated, and the presence of coke powder can hinder gas release and complicate exhaust purification. Therefore, using residual heat from electric furnace gas for drying is becoming less common. Traditional methods involving coal have high operational intensity, significant maintenance, and pollution, making them unsuitable for modern applications. Hence, the industry urgently needs a new thermal device that uses coke powder efficiently.
High-temperature flue gas boiling furnaces are well-suited for this need. They operate through fluidization, where coke and air come into direct contact, triggering intense physical and chemical reactions. The heat from these reactions is carried by the flue gas, used for drying, and then cooled before being released. Adjusting air flow, charge density, and input amount allows for different heat outputs. The micro-negative pressure operation enables precise temperature control, meeting various drying requirements.
In terms of design, the height of the boiling section is crucial for stability and fuel burnout. Based on the characteristics of the coke used (with particle sizes less than 0.4 mm), the optimal height has been determined through practical testing. Charge materials must also be carefully selected—using low-cost, easily available materials with appropriate melting points. River sand has been found to be an effective medium, and the ratio of sand to coke is around 1:1, with a static layer thickness of about 300 mm.
Operational parameters such as furnace temperature (controlled around 500–1000°C) and blast pressure (around 4 kPa) significantly influence reaction speed and efficiency. Regular maintenance and proper management are essential, especially during intermittent operations. When the furnace temperature drops below 350°C, it can be quickly restored to normal operation. With its stable performance and automation capability, the high-temperature flue gas boiling furnace offers great potential for widespread adoption.
In conclusion, the high-temperature flue gas boiling furnace provides a viable solution for utilizing coke in the calcium carbide industry, reducing emissions and promoting resource recycling. It not only improves efficiency but also supports environmental protection by minimizing waste and energy consumption. This technology represents a significant step forward in sustainable industrial practices.
Metal Zipper Slider
Our Metal Zipper Sliders use excellent quality metal, smooth and safe surface, durable and sturdy, not easy to break or fade, the use of peace of mind.
Material:Metal
Metal Type:Zinc Alloy
Slider Type:Auto Lock
Technics:Plating
Feature:Nickel-Free
Size:No.5, 3# 5# 8# 10# or Customized size
Usage:Garment Clothes Bag Accessory
Color:Customized Plating Color
Logo:Customerized Logo
Advantage:Smoothly
Style:Fashionable
About our company:
Shenzhen YYX Zipper Manufacture Co., Ltd was founded in 1990. Based on years' experience in zipper production, our zipper are highly appraised by customer in the feilds of garment processing, handbag and tent production. We also produce Lanyard, and Metal Hardware Accessories.
We enjoy the advanced and professional production equipment, professional testing apparatus and high quality employees for producions.
The products are at high and stable quality. We provided on-time delivery and active innovation as the tenet, we strive for more excellence and stable development. We take the whole world in view and look forward the future.
Our tenet: first quality, customer upper most, on-time delivery, considerate service!
Our philosophy: humanity-oriented, innovative, enterprising, practical, excellent!
Our Direction: Professional, larege-scale, international!
All of our reflective zipper have passed SGS, TUV test:
1. What's your best price for this clear metal zipper?
A: the price depends on the order quantity.
2.What's the delivery time?
A:sample order will be delivered at 3-5 workdays,large order is 7-10 days after confirming the details
3.What's your packing?
A:Our usual packing for clear metal zipper is opp bag, then packed in export carton
4.How about oem?
A: customized color and size is ok, we can do your logo and design for the printing, usually need to charge for the mold fee for small orders
5.What about the warranty?
A: We are very confident in our products, each clear metal zipper was tested ok here,and we pack them very well, so usually you will receive your order in good condition. But to avoid any subsequent trouble regarding quality issue, we suggest that you check the clear pvc zipper once you receive them,and let us know the details if there is any damaged ones, so that we can deal with it accordingly.
6.Does your factory audit?
Yes,our factory is audited by TüV Rheinland .
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Shenzhen Yiyixing Zipper Manufacture Co.,Ltd , https://www.yyxzip.com