Method and system for controlling concrete emptying and pumping

Abstract

The invention discloses a method and a system for controlling concrete emptying and pumping. The method comprises the following steps: defecting the current material level of a hopper of pumping equipment; judging whether the current material level is in a pre-set range or not; automatically controlling the emptying speed of the emptying equipment to drop when the current material level is larger than the pre-set maximum value; automatically controlling the emptying speed of the emptying equipment to rise when the current material level is smaller than the pre-set minimum value; automatically controlling the emptying speed of the emptying equipment to rise when the current material level becomes smaller and smaller in a pre-set time; and judging that the emptying equipment is empty when the material level still reduces with the same speed or higher speed, and automatically stopping the pumping equipment. The method also can be used for automatically diagnosing material level detected fault, and is convenient to operate and high in reliability.

Description

technical field [0001] The invention mainly relates to the field of concrete engineering machinery, in particular to a control method and system for concrete discharging and pumping. Background technique [0002] During the construction of the current concrete pumping equipment, at least two operators are required to operate. Operator A operates the pumping equipment, and operator B stands next to the hopper to observe the amount of material in the hopper of the pumping equipment to control the discharge of the discharge equipment and remind operator A to stop pumping when the discharge equipment is empty. [0003] Operator B must always pay attention to prevent the impact of pumping equipment caused by overflow and waste caused by high material level in the hopper or pump suction caused by low material level. In addition, the position where operator B is located is very noisy and accompanied by cement splashing, which will cause great damage to the human body. [0004] In...

AI Technical Summary

Problems solved by technology

[0006] 1) Unable to respond to the situation that there is no material in the mixer truck, it is easy to cause the concrete in the hopper to be emptied;

[0007] 2) The harsh construction environment causes the signal of the material level monitoring sensor to be easily disturbed (such as splashed concrete), and there is no corresponding fault diagnosis;

[0008] 3) When the material level detection module fails, one operator cannot control the pumping and discharging equipment at the same time;

[0009] 4) The material level cannot be seen on the man-machine interface

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