System and method for recycling calcium carbide liquid sensible heat

A calcium carbide and liquid display technology, applied in the chemical industry, can solve the problems such as insufficient development and utilization of sensible heat, and achieve the effect of effective recycling, avoiding high temperature oxidation and avoiding pollution

Pending Publication Date: 2017-09-19
SHENWU TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this part of sensible h

Method used

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  • System and method for recycling calcium carbide liquid sensible heat
  • System and method for recycling calcium carbide liquid sensible heat
  • System and method for recycling calcium carbide liquid sensible heat

Examples

Experimental program
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Embodiment

[0082] Coke and calcium oxide are supplied to the calcium carbide furnace at a mass ratio of 0.75:1 for electrothermal reaction at 1800-2200°C to obtain calcium carbide liquid at about 2000°C, and then the reacted calcium carbide liquid is transferred to the calcium carbide car, and then The calcium carbide cart is pushed into a tunnel kiln with a furnace width of 1500mm, a furnace height of 1400mm, and a furnace length of 100m by a hydraulic drive device. Automatically opened and closed cast iron furnace doors are set at the kiln head and kiln tail, and vertical tubes are arranged on the vertical side walls on both sides of the furnace. Water-cooled wall, the bottom of each water-cooled wall is equipped with a horizontal water distribution pipe to connect with the forced circulation water pump, and the top is equipped with a horizontal water-collecting pipe to connect with the steam drum and the cooling water tower respectively, and is suitable for supplying part of the hot wat...

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Abstract

The invention discloses a system and a method for recycling calcium carbide liquid sensible heat. The system comprises a calcium carbide furnace, a calcium carbide trolley, a tunnel kiln and a calcium carbide dumping device, wherein the calcium carbide furnace comprises a carbon material inlet, a calcium material inlet and a calcium carbide liquid outlet; the calcium carbide trolley is connected with the calcium carbide liquid outlet; a rail is arranged in the tunnel kiln in the direction from a kiln head to a kiln tail, the calcium carbide trolley is connected with the tunnel kiln and can slide on the rail in the direction from the kiln head to the kiln tail, a plurality of inert gas spray holes are distributed on the kiln head, a plurality of heated inert gas spray holes are distributed on the kiln tail, a water cooling wall is distributed on a lateral wall of the tunnel kiln, the water cooling wall comprises a cold water inlet and a hot water outlet, the two ends, the kiln head and the kiln tail, are sealed, and further a calcium carbide trolley push device is arranged on the kiln head; the calcium carbide dumping device is distributed close to the kiln tail and connected with the calcium carbide trolley. The system can effectively recycle calcium carbide liquid sensible heat and improve calcium carbide production efficiency at the same time.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, in particular, the invention relates to a system and method for recovering sensible heat of calcium carbide liquid. Background technique [0002] Calcium carbide is produced by heating carbon-containing raw materials (coal, coke, semi-coke, etc.) and calcium-containing raw materials (calcium oxide, calcium hydroxide, calcium carbonate, etc.) 2 ), the production process consumes a lot of energy, and the power consumption per ton of calcium carbide reaches 3200-4000KWh / t of calcium carbide. In fact, only 1630KWh of electricity is required to produce a ton of calcium carbide in theory. Among them, the temperature of high-temperature liquid calcium carbide is measured at 1950-2000°C when it comes out of the furnace. The sensible heat of calcium carbide liquid and the heat of calcium carbide liquid phase change account for 24.2% of the heat supplied by electricity, and the sensible heat is v...

Claims

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Application Information

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IPC IPC(8): C01B32/942F27D17/00
CPCF27D17/004F27D2017/006Y02P10/25Y02P20/10Y02P20/129
Inventor 巩志坚温雨鑫丁力陈峨远忠森喻善均郭文林吴道洪刘迎立
Owner SHENWU TECH GRP CO LTD
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