Commodity concrete mixing station pumps Circuit Failure Analysis

Commodity concrete mixing station pumps Circuit Failure Analysis

First we have to understand the reasons, causing commodity concrete mixing station pump passage cause of the failure, check the concrete pump line, there may be power supply wiring error, causing the pump anti even. Main electro-hydraulic valve CONSERVANCY special concrete mixer for sale coil burned or the plug is bad, the main solenoid valve spool stuck in neutral. Main pump, pilot relief valve failure caused by the main oil line because there is no pressure on the input output 5.plc no input electrical signal or no output electrical signal.

I understood the reason after, the most important is the right medicine, and look to our customers Zhengzhou Lianhua summary, with respect to commodity concrete mixing station pump oil line failure analysis approach to how to deal with it.

 Proper handling commercial concrete mixing station pump oil line failure, concrete mixing station pump with three pump system, hydraulic circuit without disturbing each other, the system is running. Commodity concrete mixing stations with anti-pump function, plugging in favor and remove the fault, and a short period of downtime to be expected. The use of advanced S tube distribution valve, which automatically compensate for wear gap, good sealing performance. Wear-resistant alloy glasses, plates and floating cutting ring, long service life. The expected long-stroke cylinder, extending the life of the pot and the piston. Optimized design of the hopper for easy cleaning, better suction performance. Automatic centralized lubrication system to ensure the effective operation of the machine lubrication. With a remote control action, the operation more safe and convenient. All components used in all GB, better interchangeability.

1 concrete mixing station works and control requirements

1.1 works concrete mixing station is divided into four parts: gravel feed, powder (cement, fly ash, bulking agents, etc.) to feed, water and feed additives, transmission and storage stirred their work flow is shown. 1, the mixer control system power, into the human - machine dialogue interface, system initialization process, including the recipe number, concrete grade, slump, producers according to amount of weight for each silo, Manual Mobile Spider Concrete Placing Boom from China weighing bucket testing, output material empty or material full signal prompts the operator to determine whether to activate the control program starts stirring sand, stone belt motor fed weighing hoppers; Open fly ash, cement tank valve, start the screw machine motor transport fly ash, cement to the metering hopper; a control valve to open water storage tank and the water and admixtures admixture metered into the metering hopper to meet the set requirements doo door open metering, mixing the ingredients into the blender is started within, to. set time doors open mixer, concrete has received material into the mixer.

1.2 Control Requirements

1.2.1 each cylinder, the control valve and the motor according to the requirements of the concrete mixing process runs each cylinder, control valve and motor must be accurate, stable and reliable. 1.2.2 control system with automatic or manual mode, and the relationship between each other is independent and restrict each other. 1.2.3 system with good anti-jamming capability and improve the alarm self-protection. 1.2.4 through communication with the computer, it can display system status, fault alarm.