my country's coal resources are rich in reserves, and coal resources are an important part of my country's energy structure. Generally speaking, coal resources are buried underground, and mines need to be drained during mining to prevent mine seepage and bring trouble to mine mining. When winter comes, the water pipes are often frozen due to the failure to take thermal insulation measures in time. Therefore, in winter, it is necessary to use an electric heating cable system to keep the mine drainage pipelines insulated and antifreeze to ensure the normal mining of the mine.
For the accumulated water in coal mines, the method of mechanical extraction is generally adopted. The requirements for thermal insulation and anti-freezing of pipelines are basically the same as those for anti-freezing of other liquid pipelines. It is only necessary to ensure that the water body in the pipeline does not freeze, so the temperature requirements for the heating cable are not high. , so generally choose low temperature series self-limiting temperature electric heating cable can meet the problem of drainage pipeline insulation. At the same time, considering that the mine drainage pipes are generally laid in the field, the environment is relatively harsh and humid. Therefore, the requirements for heat tracing are also higher, and the selection of shielded protective self-limiting temperature electric tracing cables is more in line with the needs of drainage pipeline insulation. In addition, the shielding protection type electric heating cable, the shielding layer plays the role of safety grounding protection, and has the function of heat transfer and heat dissipation. The reinforced protective outer sheath has high mechanical properties and can prevent crossover and damage due to other factors;
Nyob rau tib lub sijhawm, xaiv qhov tsim nyog hluav taws xob cua sov cable tuaj yeem ua rau lub neej kev pab cuam ntawm hluav taws xob cua sov cable thiab xyuas kom muaj cua sov.
Therefore, for the selection of thermal insulation heating cables for coal mine drainage pipes, shielded and protective self-limiting temperature electric heating cables are undoubtedly the best choice. Winding on the surface of the pipe, the installation method here can be installed according to the temperature required by the user. Usually, our company recommends the installation method of tiling, because tiling can make the pipe easier to heat evenly, so it is widely used. When the heating cable is laid on the pipe, it needs to be fixed and pasted with tape, which can increase the heat dissipation surface. Users do not have to worry that the electric heating cable will fall off and affect the heating effect when using it.