Currently spraying machine in our country is an advanced engineering and construction equipment, and the production of new spraying machine into a lot of high technology, so the new spraying machine functionality and performance are better than conventional spraying machine occupies a advantages, the new spraying machine in operation is very simple, in the absence of people through professional training, you can get started operation, so it will not have to worry about operating hazardous brought. There is no perfect thing, but spraying machine is the same, too slowly problems with shotcrete machine used for some time in the course of their work, but they are not afraid, because today we shotcrete machine manufacturers is to tell It shotcrete safety warnings in the work process 1, Spraying machine during operation. Do not use sticks to clean material chamber, so as to avoid severe damage aircraft accidents. 2. Never use water wash when cleaning the machine electrical control box, vibration motor and the main motor, so as to avoid short circuit and affect the normal operation of the machine. 3. When used in coal mine production and use, safety standard components controlled parts list, users can not be replaced. 4. spraying machine to prevent large objects longer in use, such as reinforced ﹑ iron and other debris into the rotor material cavity in order to prevent accidents caused by destruction machine. 5. When sprayed concrete spraying machine during operation, if the nozzle at the sudden lack of material ejected, then generally there will be two things happens: The first occurs when plugging it to be, then the conveying line while not being blocked, but the conveying line conveying internal situation deteriorated, then should turn off the vibrator, and other conveying pipe in the mixing material ejected, pipeline pressure returned to normal operating range on again. Second, plugging occurs, conveying line has been blocked, then you should turn off the machine, and then began to clean conveying line, in confirming the line no problem, re-press the power operation of the program starts the machine back to normal operation. Therefore, users in the use of shotcrete machine must pay special attention to avoid dangerous things in the course of their work.