Hydraulic concrete wet shotcrete machines are widely used in modern construction engineering for shotcrete operations, and are highly favored for their high efficiency and precision. Proper operating procedures and maintenance measures are crucial to ensure the normal operation and prolong the service life of the equipment. This article will provide a detailed introduction to the usage method and precautions of hydraulic concrete wet spraying machine.

　　1、 Preparation work

　　1. Hydraulic oil filling: Before using the hydraulic concrete wet spraying machine, it is necessary to first check the oil tank and fill it with sufficient hydraulic oil to ensure the normal operation of the hydraulic system.

　　2. Add water: Add water to the sink for use during machine testing and cleaning.

　　3. Check the motor: Turn on the machine and check whether the forward and reverse rotation of the motor is normal, ensuring that the motor can operate normally.

　　4. Equipment installation: Install sandblasting pipes, nozzles, rapid setting agent pipes, and air ducts to ensure that all components are securely connected.

　　5. Start the air compressor: Start the air compressor and check if it is running properly to ensure that it can provide sufficient air pressure support.

　　6. Debugging of accelerator pump: Start the accelerator pump, adjust the variable frequency rotation button to around 30 Hz, and check if the accelerator pump is working properly.

　　2、 Test process

　　1. Water lubrication: Before testing the machine, fill the hopper with water, start the main motor and ensure its normal operation.

　　2. Check the nozzle: Open the air duct and check the working condition of the nozzle to ensure that it can spray normally.

　　3. Lubrication pipeline: Turn on the positive pump for transportation to lubricate the pipeline. After lubrication is completed, stop the machine and drain the excess water from the hopper.

　　3、 Concrete spraying operation

　　1. Feeding: Add commercial concrete into the hopper to ensure that the quality of the concrete meets the requirements.

　　2. Turn on the accelerator: Turn on the accelerator air, keep the accelerator air on, start the accelerator pump, and wait for the nozzle to release the accelerator.

　　3. Spray operation: After the rapid setting agent is released from the nozzle, open the air duct first and then start pumping concrete. During the pumping process, the concrete in the hopper should not be lower than the mouth of the material cylinder to avoid affecting the spraying effect.

　　4、 Cleaning after homework completion

　　1. Cleaning of accelerator pump: After the spraying operation is completed, clean the accelerator pump pipeline with clean water to ensure that there is no residue in the pipeline.

　　2. Equipment cleaning: Start the wet spray machine and use a positive pump to repeatedly clean the hopper, S pipe, and sandblasting pipe. They must be thoroughly cleaned to prevent residue from solidifying.

　　3. Special attention in winter: After cleaning, the reverse pump must be turned on to drain the clean water from the hopper, S pipe, and water tank. At the same time, the water in the accelerator pump must be cleaned to prevent equipment damage caused by freezing.

　　5、 Precautions

　　-Operation safety: When operating the hydraulic concrete wet spraying machine, the operator must wear personal protective equipment such as safety helmets, protective goggles, and gloves.

　　-Regular maintenance: Regularly inspect and maintain key components such as hydraulic systems, air compressors, and accelerator pumps to ensure long-term efficient operation of the equipment.

　　-Environmental protection: When cleaning equipment, attention should be paid to environmental protection to prevent pollutant emissions.

　　Through the above steps, the efficient and safe operation of the hydraulic concrete wet spraying machine can be ensured, and the construction quality and efficiency can be improved. I hope this guide will be helpful for operators in practical applications.