The copper pipe water jacket is a kind of cooling water jacket, namely the copper casting cooling water jacket, which is used in the water cooling equipment of metallurgical furnace or blast furnace and can replace the refractory. It is not only resistant to high temperature, mechanical erosion and chemical corrosion, but also because of its cooling effect to protect the covering in the body of the refractory material, extended service life, thus ensuring efficient and continuous production.
That is, the inlet and outlet pipes of the cooling water jacket and the cooling water channel in the jacket are formed with a complete copper pipe embedded in the mold, and then poured copper liquid into the mold. After casting and cooling, the embedded copper pipe or alloy pipe and the water jacket body are fused into a whole. The copper cooling water jacket made by this process has the following characteristics:
(1) the buried copper cooling water jacket adopts the whole copper pipe or the alloy pipe bend type as the cooling water channel, the embedded pipe directly goes through the water pipe of the cooling water jacket connected to the cooling water circulation system outside the furnace shell, no plug is needed, no welding is required, there will be no leakage this major hidden trouble, safe and reliable. The embedded water pipe adopts arc bending system, the inner wall of the embedded pipe is smooth, the running resistance of cooling water is small, and the heat dissipation intensity is large.
(2) compared with the rolled copper drilling cooling water jacket, the buried copper casting water jacket can meet the needs of different customers, can be cast into an arc surface, the iron mouth and other special shape area can also be designed into a notch shape. It is very difficult to manufacture by drilling holes. The cooling water channel and the hot side dovetail groove can achieve a single casting, greatly simplifying the production process, greatly reducing the manufacturing cost, significantly reducing the energy consumption and shortening the manufacturing cycle, which is conducive to mass production.
(3) the actual thermal test results show that the buried copper cooling water jacket can bear a relatively high thermal load, which is more than sufficient to meet the use requirements of the thermal load area of the blast furnace.