Double cylinder continuous sludge pumping device

Abstract

The invention relates to a double cylinder continuous sludge pumping device. The double cylinder continuous sludge pumping device comprises a left main driving cylinder, a water tank, a left conveyingcylinder, a left connecting rod, a left sludge pumping piston, a left material tank, a conveying pipe, a left feeding and discharging switching device, a right main driving cylinder, a right conveying cylinder, a right connecting rod, a right sludge pumping piston, a right material tank, a right feeding and discharging switching device and a pre-installed packing device, wherein the left feedingand discharging switching device comprises a left swinging arm, a left discharging piston, a left feeding piston, a left rotating shaft, a left driving device and a left sealing component; and the right feeding and discharging switching device and the left feeding and discharging switching device have the same structures and are arranged symmetrically. The double cylinder continuous sludge pumpingdevice has the benefits as follows: the structure is simple and reliable, the noise is low during the pumping process, the direction change shock impact is little, and due to the pumping of the double conveying cylinders, the working efficiency of the equipment is improved, and the unit energy consumption is reduced; meanwhile, with the utilization of the device provided by the invention for pumping sludge, the outlet resistance of the pumping system is reduced, the abrasion of the equipment during the pumping process is reduced, the reliability of the equipment is improved, and the service life of the equipment is prolonged.

Description

technical field [0001] The invention relates to the technical field of environmental protection equipment, in particular to an energy-saving, low-noise double-cylinder pumping device for continuously transporting sludge. Background technique [0002] At present, in the process of sludge transportation, especially dewatered sludge (water content 70%-85%), long-distance pipeline transportation of such non-Newtonian fluids or pipeline transportation that requires pressurization, plunger pumps are almost the only and most effective. Conveying equipment, plunger pumps have been widely used in the transportation of non-Newtonian fluids such as concrete, mortar, sludge, etc. The basic principle is that the hydraulic cylinder pushes the piston to make a plunger-like reciprocating motion in the conveying cylinder to realize suction and push , the core device of the current concrete pump or sludge pump is: the switching of the feeding and discharging device of the pump body, the feedi...

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Problems solved by technology

The S-tube switching structure device is adopted, the concrete and / or mud fluid pre-installed with the filler is sucked into the conveying cylinder by vacuum, the S-tube is swung, and the full-material conveying cylinder is connected with the conveying pipe, and the concrete and / or mud fluid is pressed in under the push of the piston In the conveying pipe, the fluid is conveyed; the hydraulic shock and vibration noise of the S pipe are very loud during the swing process, and the conveying pipe and the conveying cylinder cannot be arranged in a straight line due to structural reasons, and the fluid resistance of the plunger structure such as sludge is large. High energy consumption; structural wear caused by frequent switching of S tubes greatly reduces the reliability of the equipment

The lifting valve switching structure device is adopted. The feeding and discharging of the conveying cylinder are respectively controlled by two independent hydraulic cylinders pushing the cone valve. During the discharging process, the rod of the feeding piston cylinder is in the middle of the material box, and the fibers contained in the sludge Such substances are easy to entangle and accumulate, causing equipment failure; the lift valve structure cannot realize the coaxial transportation between the conveying cylinder and the conveying pipe, and the flow resistance is large. For non-Newtonian fluids, especially for fluids with a plunger structure such as sludge, the resistance of a bend is equivalent. Transmission resistance in a 10m pipeline with the same diameter

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