Presser feeding blowout prevention control device and method
A technology of control devices and presses, applied in presses, chemical instruments and methods, manufacturing tools, etc., can solve problems such as temporary solutions, and achieve the effects of improving safety and reducing losses
Pending Publication Date: 2020-03-17
SHANGHAI TECHASE ENVIRONMENT PROTECTION
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Adding a protective cover is just to make the affected area smaller after spraying, and it will not cure the root cause.
Method used
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[0031] Such as figure 1 , figure 2 and image 3As shown, a press feed anti-blowout control device of the present invention includes: a press body, a feeding system, a hydraulic system, and a PLC control system; the press body includes several filter plate frames arranged in sequence; each filter The plate frame includes a plate frame 1, a pressure bearing plate 5 (thrust plate), the outside of the plate frame 1 is covered with filter cloth, and several small oil cylinders 2 (plunger Cylinder), the cylinder body of the small oil cylinder 2 is arranged in the plate frame 1, the top of the piston rod of the small oil cylinder 2 bears on the pressure plate 5; the rear outer surface of the plate frame 1 of the last filter plate frame of the press body bears on The front outer surface of the push plate 11; the top of the piston rod of the large oil cylinder 3 bears against the rear outer surface of the push plate 11; the feeding system includes a feed pump 12 and a feed port 4; a...
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The invention discloses a presser feeding blowout prevention control device and method. A feeding pressure sensor, a small oil cylinder pressure sensor and a large oil cylinder pressure sensor are arranged to be connected with the input end of a PLC separately; the output end of the PLC is connected with a proportional overflow valve arranged on a small oil cylinder air admission pipeline; the pressure of the small oil cylinder is controlled through controlling the opening of the proportional overflow valve; the output end of the PLC is connected with a variable frequency motor driving a feeding pump; the feeding speed is controlled through controlling the revolving speed of the variable frequency motor driving the feeding pump; a value A namely the maximum value of delta P*S1 is set in PLC control program, during the feeding process, real-time data of P1, P2 and P3 are collected, continuous operation is carried out on the value of delta P*S1 namely the value of B, once the value of Bexceeds the value of A, feeding is stopped and pressing is carried out; therefore, the pressure numerical value is fed back to automatically adjust the feeding flow rate and the pressure of the smalloil cylinder, and monitoring equipment runs. The method can monitor and adjust blowout prevention of overall equipment from the source to solve the feeding blowout problem.
Description
technical field [0001] The invention belongs to the technical field of sludge filter press dehydration, and relates to a blowout prevention control device and a blowout prevention control method for press machine feeding. Background technique [0002] Plate and frame cylinder press (hereinafter referred to as press) is a filter press machine widely used in sludge dewatering treatment. It generally includes a press body, a feeding system, a hydraulic system, and a PLC control system; the press body includes several filter plate frames arranged in sequence; each filter plate frame includes a plate frame and a pressure plate (thrust plate) , the plate frame is covered with filter cloth, and there are several small oil cylinders (plunger cylinders) around the plate frame and the pressure plate. The cylinder body of the small oil cylinder is set in the plate frame, and the top of the piston rod of the small oil cylinder is against the Pressure bearing plate; the rear outer surfa...
Claims
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IPC IPC(8): B30B9/02B30B15/26B30B15/30C02F11/122
CPCB30B9/02B30B15/26B30B15/30C02F11/122
Inventor 胡军驰纪智荣赵敏洁朱鹏耀刘道广
Owner SHANGHAI TECHASE ENVIRONMENT PROTECTION