As a key equipment for concrete spraying operations, the daily cleaning and maintenance of the wet spraying trolley is essential to ensure construction efficiency and equipment life. The correct cleaning steps can not only effectively remove the residual concrete, but also avoid pipe blockage and ensure the normal operation of the equipment. The following is a comprehensive wet spraying trolley cleaning process, which aims to help operators quickly master cleaning skills and improve work efficiency.

　　I. Cleaning steps after the operation

　　1. Pipeline and pump hopper cleaning: After the work is completed, start the cleaning procedure immediately. First, clean all pipelines and pump hoppers and piston cylinders to prevent concrete hardening and blockage.

　　2. Pump hopper cleaning: Open the lower door of the pump hopper and thoroughly remove the concrete residue in the hopper. Then, close the lower door, fill it with water, insert the cleaning ball into the pipe, and start the pump until the cleaning ball and clean water flow out to ensure that the interior is clean and free of residue.

　　3. Pipeline disassembly and cleaning: Remove all pipelines and rinse thoroughly with water until the water flow is clear to ensure that the inside of the pipeline is clean and unblocked.

　　4. Nozzle and pipeline cleaning: Design an end cap that matches the size of the nozzle and put it on the front end of the pipeline as a plug. Disassemble the connecting elbow, open the air source, and use compressed air to spray the concrete in the pipeline from the front end. At the same time, add water and cleaning balls into the pipe, and rinse repeatedly to ensure that there are no staff around to avoid safety risks.

　　5. Discharge port and S swing pipe cleaning: Open the discharge door, rinse with water, start the reverse pump switch, rinse the discharge port with water, and ensure that the pump S swing pipe is clean to avoid residues affecting the next use.

　　II. Cleaning tips

　　· Regular inspection: Regularly check the wear of the pipeline and pump, and replace the worn parts in time to avoid losing the big because of the small.

　　· Use special cleaning agent: On the basis of water washing, the use of special cleaning agent can more thoroughly remove concrete residues and reduce the number of cleaning times.

　　· Safety first: Before any cleaning operation, confirm that the equipment has been powered off to ensure the safety of the operator.

　　Through the above cleaning process, not only can the service life of the wet spraying trolley be extended, but also the construction efficiency can be improved and the failure rate can be reduced. Regular maintenance and cleaning are important links in equipment management that cannot be ignored.