High-temperature aerogel heat insulation coating, preparation equipment and use method for preparation equipment

Preparation equipment for a high-temperature aerogel heat insulation coating, wherein the high-temperature aerogel heat insulation coating comprises water glass, an aqueous solution, a functional material, a silane coupling agent, dimethyl silicone oil, a film- forming agent, a curing co-agent and a film-forming additive;

• wherein the functional material is one or more of silicon whiskers, ceramic whiskers, talcum powder and mica powder;
• the film-forming agent is one or more of sodium silicate, potassium silicate, a styrene-acrylic emulsion, lithium silicate, an acrylic emulsion and a polyurethane emulsion;
• the film-forming additive is one or more of benzyl alcohol, ethylene glycol butyl ether and propylene glycol phenyl ether alcohol ester-12;
• and wherein the heat insulation coating has a heat conductivity coefficient reaching 0.038 w/m·K, a wet density of 600-700 kg/m3, a dry density of 400-500 kg/m3, a construction temperature of 5-50° C., a single-coating thickness less than 6 mm and a volume shrinkage ratio of 20%;
• the preparation equipment comprises an upper outer box (1), an agitating mechanism (2), a primary mixing mechanism (3), a middle layer box (4), a reaction tank (5), a crushing mechanism (6) and a secondary mixing mechanism (7);
• the middle layer box (4) is installed at the bottom of the upper outer box (1);
• the reaction tank (5) is fixed to the bottom of the middle layer box (4);
• a supporting leg frame (8) is arranged on the outer side wall of the reaction tank (5);
• the agitating mechanism (2) is installed in the upper outer box (1) and right above the primary mixing mechanism (3);
• the primary mixing mechanism (3) is installed in the middle layer box (4);
• one end of the primary mixing mechanism (3) is in transmission connection with the crushing mechanism (6);
• the crushing mechanism (6) is installed on the inner top of the reaction tank (5);
• the secondary mixing mechanism (7) is installed in the reaction tank (5) and below the crushing mechanism (6);
• a storage cavity (9) is formed in the upper outer box (1);
• a dispersing shaft (10) is arranged at the inner bottom of the storage cavity (9);
• the dispersing shaft (10) is provided with dispersing blades (11);
• a dispersing motor (12) for driving the dispersing shaft (10) to be fixed is arranged on the outer side wall of the upper outer box (1);
• a material guiding pipe (13) being in butt joint to the primary mixing mechanism (3) is arranged on the outer side wall of the upper outer box (1);
• an unloading mechanism (14) is arranged at the bottom of the reaction tank (5);
• an exhaust hole (15) and a feeding hole (16) communicating with the reaction tank (5) are formed in the outer side wall of the reaction tank (5);
• the agitating mechanism (2) comprises a drive motor (21), a connecting frame (22), a guide block (23) and two linkage assemblies (24);
• the connecting frame (22) is installed on the outer side wall of the upper outer box (1);
• the drive motor (21) is fixed to the connecting frame (22), and the output end of the drive motor (21) is connected with one linkage assembly (24);
• the two linkage assemblies (24) are staggered in the upper outer box (1), the bottom end of each linkage assembly (24) extends into the primary mixing mechanism (3), and the two linkage assemblies (24) are in transmission cooperation;
• the guide block (23) is slidably installed on the inner side wall of the upper outer box (1) and is connected with the top ends of the two linkage assemblies (24);
• each linkage assembly (24) comprises a transmission gear (241), an eccentric shaft (242), a linkage arm (243), a linkage rod (244) and an agitating blade (245);
• each transmission gear (241) is rotationally installed on the connecting frame (22);
• the output end of the drive motor (21) is connected with one transmission gear (241);
• the two transmission gears (241) are mutually engaged;
• the eccentric shafts (242) are fixed to eccentric parts of the transmission gears (241) respectively;
• the two ends of the linkage assemblies (243) are connected with the corresponding eccentric shafts (242) and the guide block (23) respectively;
• the top ends of the linkage rods (244) are connected with the bottom ends of the linkage arms (243);
• the bottom ends of the linkage rods (244) extend into the primary mixing mechanism (3) and are connected with the agitating blades (245);
• the primary mixing mechanism (3) comprises a material supporting tank (31), a rotating fluted disc (32), a worm (33) and a servo motor (34);
• the rotating fluted disc (32) is rotationally installed on the inner bottom wall of the middle layer box (4);
• the material supporting tank (31) is vertically fixed to the rotating fluted disc (32);
• the worm (33) is installed in the middle layer box (4) in a horizontal rotating manner and is in transmission connection with the rotating fluted disc (32);
• the servo motor (34) is installed on the outer side wall of the middle layer box (4), and the output end of the servo motor (34) is connected with one end of the worm (33);
• a discharge opening (35) communicating with the material supporting tank (31) is formed in the rotating fluted disc (32);
• an electromagnetic valve (36) for controlling opening and closing of the discharge opening (35) is formed in the bottom of the middle layer box (4);
• the crushing mechanism (6) comprises a driving roller (61), a driven roller (62), a driving gear (63), a driven gear (64) and two synchronous wheels (65);
• the driving roller (61) and the driven roller (62) are horizontally installed on the inner top of the reaction tank (5);
• the driving gear (63) and the driven gear (64) are connected with one end of the driving roller (61) and one end of the driven roller (62) respectively and are engaged with each other;
• the two synchronous wheels (65) are installed at the other end of the driving roller (61) and the other end of the worm (33) respectively;
• a synchronous belt (66) is sleeved outside the two synchronous wheels (65);
• the secondary mixing mechanism (7) comprises a mounting frame (71), a stirring shaft (72), a plurality of swirling blades (73) and a rotating assembly (74);
• the mounting frame (71) is horizontally fixed in the reaction tank (5) and located below the driving roller (61);
• the stirring shaft (72) is vertically arranged, and the two ends of the stirring shaft (72) are rotationally connected with the mounting frame (71) and the inner bottom wall of the reaction tank (5) respectively;
• the plurality of swirling blades (73) are circumferentially and uniformly distributed on the stirring shaft (72);
• the rotating assembly (74) is installed on the reaction tank (5) and is in transmission connection with the top end of the stirring shaft (72);
• and
• the rotating assembly (74) comprises a stepping motor (741), a drive shaft (742), a main umbrella gear (743) and an auxiliary umbrella gear (744);
• the stepping motor (741) is mounted on the supporting leg frame (8), and the output end of the stepping motor (741) is connected with one end of the drive shaft (742);
• the drive shaft (742) is arranged in the reaction tank (5) in the horizontal rotating manner;
• the main umbrella gear (743) is fixed to the drive shaft (742);
• and the auxiliary umbrella gear (744) is fixed to the top end of the stirring shaft (72) and is engaged with the main umbrella gear (743).