CN207526660U - A kind of two-cylinder type sludge uninterrupted pumping device - Google Patents

Abstract

A double-cylinder sludge continuous pumping device, including a left main drive cylinder, a water tank, a left conveying cylinder, a left connecting rod, a left sludge pumping piston, a left material box, a conveying pipe, a left feeding and discharging switching device, a right The main driving cylinder, the right delivery cylinder, the right connecting rod, the right sludge pumping piston, the right material box, the right feeding and discharging switching device and the pre-installed filler; the left feeding and discharging switching device includes a left swing arm, a left outlet Material piston, left feeding piston, left rotating shaft, left driver and left sealing assembly, the structure of the right feeding and discharging switching device is the same as that of the left feeding and discharging switching device, and they are symmetrically arranged. The structure of the utility model is simple and reliable, the noise is low during the pumping process, and the vibration impact of the reversing is small. The pumping of the double delivery cylinder can improve the working efficiency of the equipment and save the unit energy consumption. At the same time, the utility model is used to pump sludge, It can reduce the outlet resistance of the pumping system, reduce the self-wear of the equipment during the pumping process, and improve the reliability and service life of the equipment.

Description

A double-cylinder sludge continuous pumping device

technical field

The utility model relates to the technical field of environmental protection equipment, in particular to an energy-saving, low-noise double-cylinder sludge continuous pumping device.

Background technique

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 feeding/discharging structure device of the pump body can be divided into two forms, one is the commonly used concrete pump S-pipe switching structural device, one is a poppet valve switching structural device. 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; the 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 poppet valve structure cannot realize the coaxial transportation of the delivery cylinder and the delivery 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 curve is equivalent. Conveying resistance in a pipeline with the same diameter as 10m.

Utility model content

The technical problem to be solved by the utility model is to provide a double-cylinder sludge continuous pumping device that can reduce the conveying resistance of the pumping system, reduce the self-wear of the equipment during the pumping process, and improve the reliability and service life of the equipment. .

The technical scheme adopted by the utility model to solve the technical problems is: a double-cylinder sludge continuous pumping device, including a left main drive cylinder, a water tank, a left conveying cylinder, a left connecting rod, a left sludge pumping piston, a left Material box, conveying pipe, left feeding and discharging switching device, right main drive cylinder, right conveying cylinder, right connecting rod, right sludge pumping piston, right material box, right feeding and discharging switching device and pre-installed filler;

The left main driving cylinder is linearly assembled and connected with the left conveying cylinder through the water tank, the piston rod of the left main driving cylinder is linearly assembled and connected with the left sludge pumping piston through the left connecting rod, and the left sludge pumping piston and The left connecting rod reciprocates in the left delivery cylinder under the action of the left main drive cylinder;

The right main drive cylinder is linearly assembled and connected with the right conveying cylinder through the water tank, the piston rod of the right main drive cylinder is linearly assembled and connected with the right sludge pumping piston through the right connecting rod, and the right sludge pumping piston and The right connecting rod reciprocates in the right delivery cylinder under the action of the right main drive cylinder;

The left feed and discharge switching device includes a left swing arm, a left discharge piston, a left feed piston, a left shaft, a left driver and a left sealing assembly, and the left discharge piston and the left feed piston are fixed on the left swing arm , and placed in the left material box together with the left swing arm, the left driver is connected with the left swing arm through the left shaft, the left sealing assembly is installed between the left shaft and the left material box; the right feed and discharge switch The structure of the device is the same as that of the left feeding and discharging switching device, and it is arranged symmetrically;

The outlet of the left material box and the outlet of the right material box are respectively connected with the conveying pipe, the feeding port of the left material box and the feeding port of the right material box are connected with the pre-loaded filler respectively, and the The third port communicates with the left conveying cylinder, and the third port of the right material box communicates with the right conveying cylinder.

Further, the left main driving cylinder and the right main driving cylinder are all hydraulic driving cylinders.

Further, the left driver is a linkage mechanism driven by a high-torque motor or an oil cylinder.

Further, the left sealing assembly is a high-pressure sealing assembly with a working pressure ≥ 21 MPa.

Further, an electric controller is also provided. Under the linkage control of the electric controller, when the left main drive cylinder is at the full push-out position, the right main drive cylinder is at the retracted position; the double-cylinder sewage is realized through the electric linkage control. Continuous feeding of mud continuous pumping device.

The beneficial effects of the utility model: the driver in the pumping device is connected with the swing arm through the rotating shaft, and the driving piston is switched back and forth between the feeding port and the discharging port to realize the suction and extrusion of the material in the delivery cylinder, compared with the prior art , the structure is simple and reliable, the noise is low during the pumping process, the shock of the reversing vibration is small, the pumping of the double delivery cylinder can improve the working efficiency of the equipment, save the unit energy consumption, and at the same time, using the utility model to pump the sludge can reduce The conveying resistance of the pumping system reduces the self-wear of the equipment during the pumping process, and improves the reliability and service life of the equipment.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is the front sectional view of the embodiment shown in Fig. 1;

Fig. 3 is a top sectional view of the embodiment shown in Fig. 1;

Fig. 4 is a partial structural schematic diagram of the left feeding and discharging switching device of the embodiment shown in Fig. 1;

In the figure: 1-left main driving cylinder, 2-water tank, 3-left conveying cylinder, 4-left connecting rod, 5-left sludge pumping piston, 6-left material box, 7-delivery pipe, 8-left feeding Discharge switching device, 801-left swing arm, 802-left discharge piston, 803-left feed piston, 804-left shaft, 805-left driver, 806-left seal assembly, 9-pre-installed filler, 1′ -Right main drive cylinder, 3'-right conveying cylinder, 4'-right connecting rod, 5'-right sludge pumping piston, 6'-right material box, 8'-right feeding and discharging switching device.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, this embodiment includes a left main drive cylinder 1, a water tank 2, a left conveying cylinder 3, a left connecting rod 4, a left sludge pumping piston 5, a left material box 6, a conveying Pipe 7, left feed and discharge switching device 8, right main drive cylinder 1', right conveying cylinder 3', right connecting rod 4', right sludge pumping piston 5', right material box 6', right feed and discharge switch Device 8' and preloader 9;

The left main driving cylinder 1 is linearly assembled and connected with the left conveying cylinder 3 through the water tank 2, and the piston rod of the left main driving cylinder 1 is linearly assembled and connected with the left sludge pumping piston 5 through the left connecting rod 4. The sludge pumping piston 5 and the left connecting rod 4 reciprocate in the left delivery cylinder 3 under the action of the left main drive cylinder 1;

The right main driving cylinder 1' is linearly assembled and connected with the right delivery cylinder 3' through the water tank 2, and the piston rod of the right main driving cylinder 1' is linearly assembled and connected with the right concrete piston 5' through the right connecting rod 4'. The right concrete piston 5' and the right connecting rod 4' reciprocate in the right delivery cylinder 3' under the action of the right main drive cylinder 1';

The left feeding and discharging switching device 8 includes a left swing arm 801, a left feeding piston 802, a left feeding piston 803, a left rotating shaft 804, a left driver 805 and a left sealing assembly 806. The left feeding piston 802 and the left feeding The material piston 803 is fixed on the left swing arm 801, and is placed in the left material box 6 together with the left swing arm 801. The left driver 805 is a linkage mechanism driven by a high-torque motor or an oil cylinder. The left driver 805 passes through the left The rotating shaft 804 is connected with the left swing arm 801, and the left sealing assembly 806 is installed between the left rotating shaft 804 and the left material box 6;

The structure of the right feeding and discharging switching device 8' is the same as that of the left feeding and discharging switching device 8, and is arranged symmetrically;

The outlet of the left material box 6 and the outlet of the right material box 6' are connected with the conveying pipe 7 respectively, and the feeding port of the left material box 6 and the feeding port of the right material box 6' are connected with the preloaded filler 9 respectively. The third port of the left material box 6 communicates with the left conveying cylinder 3, and the third port of the right material box 6' communicates with the right conveying cylinder 3'.

Both the left master drive cylinder 1 and the right master drive cylinder 1' are hydraulic drive cylinders.

The left sealing assembly 806 is a high-pressure sealing assembly with a working pressure ≥ 21 MPa.

In this embodiment, the working principle of the left feeding and discharging switching device 8 is as follows: the left swing arm 801 drives the left feeding piston 803 upwards to close the feeding port, the discharge port is connected, and the sludge in the left conveying cylinder 3 is on the left. The sludge pumping piston 5 continuously enters the conveying pipe 7 through the discharge port; when the sludge in the left conveying cylinder 3 is completely discharged, the left swing arm 801 drives the left discharge piston 802 downward to close the outlet connected to the conveying pipe 7. At the feed port, the sludge enters the left conveying cylinder 3 through the feed port to complete the suction. The working principle of the right feeding and discharging switching device 8 ′ is the same as that of the left feeding and discharging switching device 8 .

When the left main drive cylinder shrinks in place, the left conveying cylinder and the left material box are filled with sludge, and the left hydraulic driver drives the left feeding piston on the left swing arm to close the feeding port, and at the same time connects the outlet of the left material box with the The connection of the conveying pipe, the sludge is stably discharged from the left conveying cylinder and the left material box under the push of the left sludge pumping piston, and enters the conveying pipe. When the sludge fluid in the left conveying cylinder is completely discharged, the left main drive cylinder is located In the full push position, repeat the above steps to realize the pumping of sludge; it can realize the independent work of a single cylinder.

Under the linkage control of the electrical controller, when the left main drive cylinder is at the full push-out position, the right main drive cylinder is at the retracted position; through the electrical linkage control, the continuous feeding of the double-cylinder sludge continuous pumping device is realized.

Claims (9)

1. A double-cylinder sludge continuous pumping device, characterized in that it includes a left main drive cylinder, a water tank, a left conveying cylinder, a left connecting rod, a left sludge pumping plug, a left material box, a conveying pipe, a left feeding Discharge switching device, right main drive cylinder, right conveying cylinder, right connecting rod, right sludge pumping piston, right material box, right feeding and discharging switching device and pre-installed filler; The left main driving cylinder is linearly assembled and connected with the left conveying cylinder through the water tank, the piston rod of the left main driving cylinder is linearly assembled and connected with the left sludge pumping piston through the left connecting rod, and the left sludge pumping piston and The left connecting rod reciprocates in the left delivery cylinder under the action of the left main drive cylinder; The right main drive cylinder is linearly assembled and connected with the right conveying cylinder through the water tank, the piston rod of the right main drive cylinder is linearly assembled and connected with the right sludge pumping piston through the right connecting rod, and the right sludge pumping piston and The right connecting rod reciprocates in the right delivery cylinder under the action of the right main drive cylinder; The left feed and discharge switching device includes a left swing arm, a left discharge piston, a left feed piston, a left shaft, a left driver and a left sealing assembly, and the left discharge piston and the left feed piston are fixed on the left swing arm , and placed in the left material box together with the left swing arm, the left driver is connected with the left swing arm through the left shaft, the left sealing assembly is installed between the left shaft and the left material box; the right feed and discharge switch The structure of the device is the same as that of the left feeding and discharging switching device, and it is arranged symmetrically; The outlet of the left material box and the outlet of the right material box are respectively connected with the conveying pipe, the feeding port of the left material box and the feeding port of the right material box are connected with the pre-loaded filler respectively, and the The third port communicates with the left conveying cylinder, and the third port of the right material box communicates with the right conveying cylinder. 2. The double-cylinder sludge continuous pumping device according to claim 1, characterized in that: the left main drive cylinder and the right main drive cylinder are both hydraulic drive cylinders. 3. The double-cylinder sludge continuous pumping device according to claim 1 or 2, characterized in that: the left driver is a connecting rod mechanism driven by a high-torque motor or an oil cylinder. 4. The double-cylinder sludge continuous pumping device according to claim 1 or 2, characterized in that: the left sealing assembly is a high-pressure sealing assembly with a working pressure ≥ 21 MPa. 5. The double-cylinder sludge continuous pumping device according to claim 3, characterized in that: the left sealing assembly is a high-pressure sealing assembly with a working pressure ≥ 21 MPa. 6. The double-cylinder sludge continuous pumping device according to claim 1 or 2, characterized in that: an electric controller is also provided, and under the linkage control of the electric controller, the left main drive cylinder is positioned at the full push-out position, the right main drive cylinder is in the shrinking position; the continuous feeding of the double-cylinder sludge continuous pumping device is realized through electrical linkage control. 7. The double-cylinder sludge continuous pumping device according to claim 3, characterized in that: an electric controller is also provided, and under the linkage control of the electric controller, when the left main drive cylinder is at the full push-out position , the right main drive cylinder is located at the retracted position; the continuous feeding of the double-cylinder sludge continuous pumping device is realized through electrical linkage control. 8. The double-cylinder sludge continuous pumping device according to claim 4, characterized in that: an electric controller is also provided, and under the linkage control of the electric controller, when the left main drive cylinder is at the full push-out position , the right main drive cylinder is located at the retracted position; the continuous feeding of the double-cylinder sludge continuous pumping device is realized through electrical linkage control. 9. The double-cylinder sludge continuous pumping device according to claim 5, characterized in that: an electric controller is also provided, and under the linkage control of the electric controller, when the left main drive cylinder is at the full push-out position , the right main drive cylinder is located at the retracted position; the continuous feeding of the double-cylinder sludge continuous pumping device is realized through electrical linkage control.