Energy-saving distillation tower for hydroxypropyl methyl cellulose production

The utility model discloses an energy-saving distillation tower for hydroxypropyl methyl cellulose production. The distillation tower comprises a distillation tower main body, a spiral heat conductionring, a temperature sensor, a heat insulation layer, a spiral heat dissipation pipe, a condenser, a spiral gas guide pipe and a material storage cavity, the distillation tower main body is provided with a shell, the material storage cavity is formed between the shell and the distillation tower main body, and a vacuum heat insulation cavity is formed in the heat insulation layer; a control switchis arranged below the right side of the heat insulation layer, a temperature sensor is arranged on the left side of the upper portion in the distillation tower body, and a conveying pump is connectedto the left side below the first conveying pipe; a gas guide port is formed in the middle of the upper part of the distillation tower main body, and is connected with a spiral heat dissipation pipe; acold air chamber is arrange