High-pressure dehydration mechanism and multi-layer stacked solid-liquid separation system

Abstract

The utility model relates to sludge dewatering equipment, in particular to a high-pressure dewatering mechanism and a multi-layer stacked solid-liquid separation system comprising the high-pressure dewatering mechanism. The high-pressure dewatering mechanism comprises a mud pressing plate, a mud pressing hydraulic cylinder, a charging barrel and a rack, the mud pressing hydraulic cylinder comprises a cylinder barrel and a piston rod, the cylinder barrel is provided with a mounting flange, the rack comprises a mounting plate, the cylinder barrel is mounted on the mounting plate, the mounting plate is provided with a hydraulic cylinder mounting hole for the mounting flange to pass through, and a combined transition plate is arranged below the mounting plate. The mounting flange is located below the combined transition plate, and the combined transition plate is fixedly connected with the mounting plate and the mounting flange in a detachable mode; the combined transition plate comprises at least two sub-transition plates which can be separated from each other, the at least two sub-transition plates which can be separated from each other are spliced to form a hydraulic cylinder receding hole, and the cylinder barrel is located in the hydraulic cylinder receding hole. And the mud pressing hydraulic cylinder can be disassembled and assembled without disassembling the charging barrel, so that the operation is more convenient.

Description

Technical Field

[0001] The utility model relates to sludge dewatering equipment, in particular to a high-pressure dewatering mechanism and a multi-layered solid-liquid separation system. Background Art

[0002] Patent document CN221094005U records a high-pressure reciprocating automatic dewatering equipment for sludge (in patent document CN114917634A, this type of equipment is called a multi-layer stacked solid-liquid separation system, which is more appropriate, so this type of equipment is called a multi-layer stacked solid-liquid separation system in other places in this application document). When implementing the technical solution recorded in patent document CN221094005U, the inventor of the present utility model found that since a barrel (including a pressure-resistant inner barrel and a water-collecting outer barrel) is provided under the high-pressure hydraulic cylinder, if the high-pressure hydraulic cylinder can only be installed on the frame from bottom to top, it will cause inconvenience to remove the high-pressure hydraulic cylinder for repair and maintenance, because in order to remove the high-pressure hydraulic cylinder, the barrel needs to be removed first. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a high-pressure dehydration mechanism, wherein a hydraulic cylinder for pressing mud can be mounted on a frame from top to bottom, so that the barrel does not need to be dismantled before the hydraulic cylinder is dismantled.

[0004] In order to solve the above technical problems, the utility model provides a high-pressure dehydration mechanism, including a mud pressing plate, a mud pressing hydraulic cylinder, a material barrel and a frame. The mud pressing hydraulic cylinder includes a cylinder barrel and a piston rod. The mud pressing plate is located below the mud pressing hydraulic cylinder and is fixedly connected to the piston rod of the mud pressing hydraulic cylinder in a detachable manner. The cylinder barrel and the material barrel are fixed on the frame. The cylinder barrel is located above the material barrel. The cylinder barrel is provided with a mounting flange. The frame includes a mounting plate. The cylinder barrel is mounted on the mounting plate. The mounting plate is provided with a hydraulic cylinder mounting hole for the mounting flange to pass through. A combined transition plate is provided below the mounting plate. The mounting flange is located below the combined transition plate. The combined transition plate is fixedly connected to the mounting plate and the mounting flange in a detachable manner. The combined transition plate includes at least two separable sub-transition plates. The at least two separable sub-transition plates are spliced ​​together to form a hydraulic cylinder clearance hole. The cylinder barrel is located in the hydraulic cylinder clearance hole.

[0005] To remove the hydraulic cylinder, first remove the pressure plate, then the combined transition plate. The cylinder can then be lifted and removed. To install the hydraulic cylinder, first lift it and lower it through the cylinder mounting hole. Then, install the combined transition plate, secure the mounting plate, combined transition plate, and mounting flange, and finally install the pressure plate. Both removal and installation of the hydraulic cylinder do not require disassembly of the barrel, making operation more convenient.

[0006] Preferably, the high-pressure dehydration mechanism further includes a mud pressing guide shaft to improve the stability of the mud pressing plate when it is raised and lowered. The mud pressing guide shaft passes through the mounting plate and the combined transition plate in sequence and is fixedly connected to the mud pressing plate in a detachable manner.

[0007] Preferably, a fixing seat is provided on the upper side of the mud pressing plate corresponding to the mud pressing guide shaft, the lower end of the mud pressing guide shaft is inserted into the fixing seat, and a combination card is detachably mounted on the upper side of the fixing seat, the combination card includes at least two separable sub-cards, the at least two separable sub-cards are assembled to form a guide shaft fixing hole, the mud pressing guide shaft is located in the guide shaft fixing hole, a card slot is provided at the lower end of the mud pressing guide shaft, and the combination card is inserted into the card slot. The lower end of the mud pressing guide shaft is fixed by the combination card, so that the mud pressing guide shaft can be disassembled and assembled from above the mounting plate, and the barrel does not need to be removed for disassembly and installation of the guide shaft.

[0008] Preferably, the mud pressing guide shaft is a smooth shaft to facilitate its installation.

[0009] The utility model also provides a multi-layer stacked solid-liquid separation system, which includes the high-pressure dehydration mechanism provided by the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a three-dimensional view of a high-pressure dehydration mechanism according to a first embodiment of the present invention;

[0011] Figure 2 for Figure 1 a perspective view of the illustrated rack;

[0012] Figure 3 for Figure 1 The assembly relationship diagram of the mud pressing plate, mud pressing hydraulic cylinder, combined transition plate and mud pressing guide shaft is shown;

[0013] Figure 4 for Figure 1 The assembly relationship diagram of the mud pressing hydraulic cylinder and the combined transition plate is shown;

[0014] Figure 5 for Figure 1 The assembly relationship diagram of the mud pressing plate, combined clamping plate and mud pressing guide shaft is shown. DETAILED DESCRIPTION Example 1

[0015] See also Figure 1A high-pressure dewatering mechanism includes a frame 1, on which is mounted a barrel 2, which comprises an inner barrel and an outer barrel. The inner barrel is provided with a drain hole, and the outer barrel is provided with a drain port for connection to a drain pipe P. The stacked filter cloth and sludge are located within the inner barrel. A mud-pressing hydraulic cylinder 3 is mounted on the frame 1. The mud-pressing hydraulic cylinder 3 comprises a cylinder barrel 31, a piston rod 32, and other components. Its structure and operating principle can be referenced by existing hydraulic cylinders. A mud-pressing plate 4 is secured to the piston rod 32 of the mud-pressing hydraulic cylinder 3 via multiple fasteners S1 (bolts). When the piston rod 32 of the mud-pressing hydraulic cylinder 3 extends, the mud-pressing plate 4 moves downward, extending into the inner barrel, compressing the stacked filter cloth and sludge within the inner barrel and squeezing out the water. The squeezed water then flows through the drain hole in the inner barrel into the space between the inner and outer barrels, and then out of the drain port in the outer barrel into the drain pipe P.

[0016] In the prior art, the frame 1 includes a mounting plate, and a mounting flange 311 is provided on the cylinder 31. The diameter of the hole on the mounting plate is smaller than the outer diameter of the mounting flange 311. After removing the barrel 2, the mud pressing hydraulic cylinder 3 passes through the hole on the mounting plate from bottom to top, and the mounting flange 311 abuts against the lower surface of the mounting plate. The mounting flange 311 is fixed to the mounting plate by bolts and nuts.

[0017] Compared with the prior art, the present invention changes the structure of the mounting plate. Figure 2 The frame 1 includes a mounting plate 11, which is provided with a hydraulic cylinder mounting hole 111 through which a mounting flange 311 passes. The diameter of the hydraulic cylinder mounting hole 111 is larger than the outer diameter of the mounting flange 311, allowing the mounting flange 311 to pass through the hydraulic cylinder mounting hole 111 from top to bottom and pass under the mounting plate 11. After the mounting flange 311 passes under the mounting plate 11, a combined transition plate 5 is installed between the mounting flange 311 and the mounting plate 11. The combined transition plate 5 includes two sub-transition plates 51, which are fixedly connected to the mounting plate 11 via fastening assemblies S2 (bolts and nuts). Figure 3 and 4 The two sub-transition plates 51 are also fixedly connected to the mounting flange 311 via fastening assemblies S3 (bolts and nuts). The two sub-transition plates 51 are assembled to form a hydraulic cylinder clearance hole, in which the cylinder barrel 31 is located. By first passing the mounting flange 311 through the hydraulic cylinder mounting hole 111 and then installing the two sub-transition plates 51, the mud pressing hydraulic cylinder 3 is fixed when it is installed from above the mounting plate 11. Because the mud pressing plate 4 cannot pass through the hydraulic cylinder mounting hole 111, it is necessary to secure the mud pressing plate 4 to the piston rod 32 using fasteners S1 after the mud pressing hydraulic cylinder 3 is installed. Before removing the mud pressing hydraulic cylinder 3, it is also necessary to first remove the mud pressing plate 4, then remove the combined transition plate 5, and finally lift the mud pressing hydraulic cylinder 3 upward and remove it from the hydraulic cylinder mounting hole 111.

[0018] In the process of driving the mud pressing plate 4 to press the filter cloth and sludge by the mud pressing hydraulic cylinder 3, since the mounting plate 11 is located above the combined transition plate 5 and the combined transition plate 5 is located above the mounting flange 311, the fastening assemblies S2 and S3 are only used for fastening connection and do not bear the thrust of the mud pressing hydraulic cylinder 3. If the combined transition plate 5 is not arranged and the position of the mounting flange 311 is directly changed from below the mounting plate in the prior art to above the mounting plate, the bolts and nuts connecting the mounting flange 311 and the mounting plate will not only be used for fastening connection but also bear the thrust of the mud pressing hydraulic cylinder 3 in the process of driving the mud pressing plate 4 to press the filter cloth and sludge by the mud pressing hydraulic cylinder 3, so that thicker bolts need to be used and the bolts and nuts are prone to loosening.

[0019] Four mud pressing guide shafts 6 are arranged around the mud pressing hydraulic cylinder 3, and the mud pressing guide shafts 6 are fixedly connected with the mud pressing plate 4 and move up and down with the mud pressing plate 4. Since the mud pressing guide shafts 6 have similar problems as the mud pressing hydraulic cylinder 3 in installation, i.e. the material cylinder 2 needs to be disassembled first if the installation is from below to above, the mud pressing guide shafts 6 are designed to be installed from above to below in the utility model. Referring to Figure 2 and 3 After the combined transition plate 5 is installed, the mud pressing guide shaft 6 passes through the guide shaft mounting hole 112 on the mounting plate 11 first, then passes through the self-lubricating copper sleeve 52 on the combined transition plate 5, and finally is inserted into the fixing seat 41 on the mud pressing plate 4. Referring to Figure 5 In order to realize the fixation between the mud pressing plate 4 and the mud pressing guide shaft 6, the combined clamping plate 7 is arranged on the fixing seat 41, the combined clamping plate 7 includes two sub-clamping plates 71, the two sub-clamping plates 71 are fixedly connected with the fixing seat 41 through fasteners S4 (bolts) respectively, the two sub-clamping plates 71 are spliced to form a guide shaft fixing hole, the mud pressing guide shaft 6 is located in the guide shaft fixing hole, the lower end of the mud pressing guide shaft 6 is provided with a clamping groove 61, and the two sub-clamping plates 71 are respectively inserted into the clamping groove 61, so that the mud pressing guide shaft 6 is clamped by the combined clamping plate 7 and cannot move relative to the mud pressing plate 4.

[0020] After the combined transition plate 5 is installed, the mud pressing guide shaft 6 can be sequentially passed through the guide shaft mounting hole 112 and the self-lubricating copper sleeve 52 from above to below, inserted into the fixing seat 41, and finally the two sub-clamping plates 71 are installed to complete the fixation of the mud pressing guide shaft 6. When the mud pressing guide shaft 6 needs to be disassembled, the combined clamping plate 7 is only needed to be dismounted, and then the mud pressing guide shaft 6 can be pulled out from below to above. Embodiment two

[0021] A multi-layer stacked solid-liquid separation system includes the high-pressure dehydration mechanism of Example 1, as well as an automatic feeding mechanism, a filter cloth retracting mechanism, and other mechanisms. This utility model's structural optimization of the existing multi-layer stacked solid-liquid separation system only involves the high-pressure dehydration mechanism and does not involve other mechanisms such as the automatic feeding mechanism and the filter cloth retracting mechanism. For details on the structure and function of these other mechanisms, please refer to Patent Document CN221094005U.

Claims

1. A high-pressure dewatering mechanism, comprising a mud pressing plate, a mud pressing hydraulic cylinder, a barrel, and a frame, wherein the mud pressing hydraulic cylinder comprises a cylinder barrel and a piston rod, the mud pressing plate is located below the mud pressing hydraulic cylinder and is detachably connected to the piston rod of the mud pressing hydraulic cylinder, the cylinder barrel and the barrel are fixed to the frame, the cylinder barrel is located above the barrel, a mounting flange is provided on the cylinder barrel, the frame comprises a mounting plate, and the cylinder barrel is mounted on the mounting plate, characterized in that: A hydraulic cylinder mounting hole is provided on the mounting plate for the mounting flange to pass through, a combined transition plate is provided below the mounting plate, the mounting flange is located below the combined transition plate, and the combined transition plate is fixedly connected to the mounting plate and the mounting flange in a detachable manner; the combined transition plate includes at least two separable sub-transition plates, and the at least two separable sub-transition plates are spliced ​​together to form a hydraulic cylinder clearance hole, and the cylinder barrel is located in the hydraulic cylinder clearance hole.

2. The high-pressure dehydration mechanism according to claim 1, characterized in that: The hydraulic cylinder mounting hole and the hydraulic cylinder clearance hole are circular holes, and the outer diameter of the mounting flange is smaller than the inner diameter of the hydraulic cylinder mounting hole and larger than the inner diameter of the hydraulic cylinder clearance hole.

3. The high-pressure dehydration mechanism according to claim 1, characterized in that: The high-pressure dehydration mechanism also includes a mud pressing guide shaft, which passes through the mounting plate and the combined transition plate in sequence and is fixedly connected to the mud pressing plate in a detachable manner.

4. The high-pressure dehydration mechanism according to claim 3, characterized in that: A fixing seat is provided on the upper side of the mud pressing plate corresponding to the mud pressing guide shaft, and the lower end of the mud pressing guide shaft is inserted in the fixing seat. A combination card plate is detachably installed on the upper side of the fixing seat. The combination card plate includes at least two separable sub-card plates. The at least two separable sub-card plates are spliced ​​together to form a guide shaft fixing hole. The mud pressing guide shaft is located in the guide shaft fixing hole. A card slot is provided at the lower end of the mud pressing guide shaft, and the combination card plate is inserted in the card slot.

5. The high-pressure dehydration mechanism according to claim 3, characterized in that: A self-lubricating copper sleeve is provided on the combined transition plate corresponding to the mud pressing guide shaft, and the mud pressing guide shaft is passed through the self-lubricating copper sleeve.

6. The high-pressure dehydration mechanism according to claim 3, 4 or 5, characterized in that: The mud pressing guide shafts are optical shafts, and there are at least two of them.

7. A multi-layer stacked solid-liquid separation system, characterized by: The method comprises the high-pressure dehydration mechanism according to any one of claims 1 to 6.

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