Heating device for water glass mixing tank

The utility model belongs to the technical field of processing equipment of suction type building insulation boards and aims at providing a high-efficiency solar heating device for supplying heat to a water glass modified mixing tank. According to the specific technical scheme, the heating device for the water glass mixing tank comprises a mixing tank and a heat supply device for heating the mixing tank, wherein a water circulation cavity is formed in the side wall of the tank body of the mixing tank; the heat supply device comprises a water tank; the lower part of an inner cavity of the water tank is communicated with the upper part of the water circulation cavity of the mixing tank by virtue of a water inlet pipe; the upper part of the inner cavity of the water tank is communicated with the lower part of the water circulation cavity of the water tank by virtue of a water outlet pipe; the bottom of the water tank is connected with multiple solar heat-absorbing tubes; the solar heat-absorbing tubes comprise outer tubes and inner tubes; the outer walls of the outer tubes are coated by solar absorption layers; radiating tubes are clamped between the inner walls of the outer tubes and the outer walls of the inner tubes; one ends of the radiating tubes are coated by the outer tubes and the inner tubes, and the other ends of the radiating tubes extend outwards and are arranged inside the water tank; the radiating tubes are vacuum tubes; and the interior of the radiating tubes is filled with low-boiling-point materials.