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Structure and working principle of TK700 rotor piston wet sprayer
The TK700 rotor piston wet sprayer adopts a mature rotor piston cam feeding mechanism, which solves the problem of cohesive plugging of wet mix finished concrete materials in the rotor silo and realizes uniform and continuous feeding of small aggregates and uniform thinning in pipes. Streaming. 1. TK700 Rotor Piston Type Wet Sprayer Main Structure TK700 Rotor Piston Type Wet Sprayer has two sets of conveying system. One set is a concrete conveying system. The concrete finished by the concrete mixer is injected into the hopper of the jet hopper. The system is evenly sent to the gas and material mixing bin, and is mixed with high-pressure air and passes through the injection pipe to the nozzle in a thin flow state. The other is a liquid quick-setting agent addition system, and the flow rate of the metering pump is adjusted according to the liquid quick-setting agent content. The liquid accelerating agent pumped out is mixed with the high-pressure air through the atomizer, and after atomization, the mixing ring of the nozzle is mixed with the concrete in a state of thin flow, and sprayed from the nozzle to the sprayed surface. The wet sprayer consists of main components such as feeding system, feed system, air piping system, accelerating agent metering system, electrical control system, transmission system and walking system. Feeding system: It consists of hoppers, pressure plates, vibration motors, cams, rotors, pistons, piston rods, steel linings, and coupling plates. Feeding system: It is composed of gas mixing tank, adjustable pipe, quick connector, concrete spraying pipe and nozzle. Air Line System: The power for piping and spraying concrete is compressed air. The system has main air valve, auxiliary air cut-off valve, check valve, pipe connection column, pressure gauge, air distribution valve, electric contact pressure gauge and piping and other components. The main air valve controls the high-pressure air volume of the injection pipe, and the air volume is adjusted according to the nozzle concrete injection condition. When a blockage occurs, the electric contact pressure gauge operates, and the circuit is automatically shut down when the power is turned off to protect the equipment. Accelerating agent metering system: Includes metering pump, accelerator and nebulizer line. Electric control system: It consists of electric control cabinet, leakage protection switch, contactor, thermal relay, transformer, circuit breaker, push button, etc. It controls the start and stop of the main motor, accelerating agent metering pump motor and hopper vibration motor. Drive system: It is composed of main motor, gear box and output shaft and provides rotor rotation power. Walking system: There are two kinds of walking methods: track and trackless. Customers can choose according to the mode of transportation on site. 2. Working principle of TK700 rotor piston wet spraying machine feeding mechanism The working principle of feeding mechanism is shown in Fig. 3. There is a piston in each cavity of the rotor. The piston is connected to the cam through the piston rod and roller. Make up the rotor piston cam feed mechanism. During the rotation of the rotor, the piston is moved up and down in the rotor material chamber by the mechanism. The three material chamber pistons of the hopper are in the downward process, and the concrete in the hopper enters into the rotor material chamber under the combined action of the hopper vibration motor and the negative pressure; the pistons of the three material chambers facing the gas material mixing chamber are up During the process, the concrete in the material chamber is forcibly fed into the gas and material mixing chamber by the piston, and the rotor rotates one revolution to complete one cycle of feeding and feeding stroke. The mixture of concrete in the gas and material mixing chamber and the compressed air form a thin flow pattern and is sent to the nozzle through the concrete injection pipe. At the same time, another set of accelerating agent pumping system of this machine also works at the same time. The metering pump pumps out the liquid accelerator in the accelerator barrel, passes through the one-way valves B2, B1, and A1, enters the atomizer, mixes and accelerates with the auxiliary air, and is sent to the nozzle through the accelerator pipeline. The mixing ring is mixed with the concrete and sprayed on the sprayed surface by the nozzle.