Upright column and oil cylinder combined type jacking mechanism of ultrahigh pressure filter press

Abstract

The utility model discloses an upright post and oil cylinder combined type jacking mechanism of an ultrahigh pressure filter press, which is characterized in that upright post brackets, an upright post driving oil cylinder and a support plate component are arranged on an oil cylinder seat, the two upright post brackets are symmetrically arranged on the oil cylinder seat on the two sides of an oil cylinder mounting hole, and one end of an upright post is inserted into the upright post brackets; the other end of the stand column and the end of a piston rod of the stand column driving oil cylinder are connected to the pressing plate. The supporting plate is arranged in the notch of the stand column support and is driven by the supporting plate driving mechanism to slide up and down along the notch of the stand column support. During filter pressing, one end of the stand column abuts against the pressing plate, the pressing plate presses the filter plate, one end of the stand column abuts against the supporting plate, the supporting plate abuts against the oil cylinder base, the left main beam and the right main beam of the filter press tighten the left abutting plate and the right abutting plate of the oil cylinder base, and therefore the pressing plate is always kept in the original position, and the situation that a motor needs to be continuously started and stopped to supplement pressure to the oil cylinder to maintain the original position of the pressing plate like the oil cylinder is not needed. And the number of the oil cylinders is small, and under the condition of the same function configuration, electricity is comprehensively saved by more than 30% in the filter pressing process of the filter press.

Description

Technical Field

[0001] This utility model relates to the field of filter press technology, specifically to a column cylinder combined clamping mechanism for an ultra-high pressure filter press. Background Technology

[0002] With the continuous development of the market, filter presses are being used more and more widely. Among them, the demand for ultra-high pressure filter presses is also increasing, especially in the high-pressure dewatering of materials such as coal slime and titanium dioxide, where demand has been increasing in recent years.

[0003] One of the key features of ultra-high pressure filter presses is that the dehydration of materials requires very high pressing pressure to forcibly reduce the moisture content of the materials to a very low level, thus meeting the process requirements in one step.

[0004] Currently, ultra-high pressure filter presses on the market require very high filtration pressure, and their clamping systems often require multiple large hydraulic cylinders to provide the filtration pressure. For example, a published Chinese patent, "An Ultra-High Pressure Filter Press with a Multi-Cylinder Clamping System," patent number CN118217683A, describes a high-pressure assembly within the filter press frame that simultaneously clamps several filter cakes. The high-pressure assembly includes a clamping plate and several high-pressure hydraulic cylinders arranged in an array on the clamping plate. The several high-pressure hydraulic cylinders work synchronously to drive the clamping plate to clamp the several filter cakes.

[0005] To supply oil to multiple large hydraulic cylinders, the hydraulic station's oil tank is relatively large, resulting in a large volume of hydraulic oil and significant costs for each oil change. The manufacturing cost of multi-cylinder systems is also high, and maintenance is more complicated. For some large filter presses, to achieve very high pressures, even nine 500mm diameter cylinders are required, which greatly increases costs. Furthermore, the multi-cylinder structure requires continuous starting and stopping of the motor during the filtration process to pressurize the cylinders and maintain their position, resulting in high power consumption. Utility Model Content

[0006] In order to overcome the above-mentioned technical defects, the present invention provides a clamping mechanism for an ultra-high pressure filter press that is simple in structure, reliable, and inexpensive.

[0007] The technical solution of this utility model is implemented as follows: A column cylinder combined clamping mechanism for an ultra-high pressure filter press includes a column, a column support, a cylinder seat, a column drive cylinder, a support plate assembly, and a pressing plate; the cylinder seat has a cylinder mounting hole in the middle for mounting the column drive cylinder, and four column through holes are symmetrically arranged on both sides of the cylinder mounting hole; the column support is a frame groove structure, and two column supports are symmetrically installed on the cylinder seats on both sides of the cylinder mounting hole, and the through holes of the column supports correspond to the four columns; one end of the column is inserted into the through hole of the column support, and the other end of the column is connected to the pressing plate; the piston rod end of the column drive cylinder is connected to the pressing plate; the support plate assembly includes a support plate, a connecting frame, and a support plate drive mechanism; the two support plates are connected by the connecting frame, each support plate has a through hole in the middle, the support plate drive mechanism is installed between the cylinder seat and the connecting frame, and the support plate is set in the groove of the column support, sliding up and down along the groove of the column support under the drive of the support plate drive mechanism.

[0008] Furthermore, the column is a rectangular hollow thick-walled structure, with a cover plate welded to one end; the other end of the column has a flange plate, which is fixed to the clamping plate.

[0009] Furthermore, each column support is symmetrically provided with four mounting feet on its outer side, which are used to fix it to the side surface of the cylinder seat.

[0010] Furthermore, the lower inner side of the cylinder seat is provided with two limiting plates for the support plates.

[0011] Compared with existing technologies, the advantages of this invention are as follows: The structure of four columns and their support plates, plus a relatively small hydraulic cylinder, can provide the ultra-high pressure that previously required multiple large hydraulic cylinders, greatly simplifying the structure, reducing costs, and significantly lowering maintenance costs. During the filtration process, one end of each column presses against the pressure plate, which presses down on the filter plate, while the other end presses against the support plate, which in turn presses against the hydraulic cylinder seat. The left and right main beams of the filter press tighten the left and right pressure plates of the hydraulic cylinder seat, thus keeping the pressure plate in its original position. Unlike hydraulic cylinders, there is no need to constantly start and stop the motor to apply pressure to maintain the pressure plate's position. Furthermore, the number of hydraulic cylinders is reduced. Therefore, with the same functional configuration, the filter press saves more than 30% of electricity during the filtration process. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0013] Figure 1This is a diagram showing the installation location of the clamping mechanism on the filter press.

[0014] Figure 2 This is the initial state of the clamping mechanism (the column retracts).

[0015] Figure 3 This is the state after the column of the tightening mechanism has been tightened.

[0016] Figure 4 This is an exploded diagram of the clamping mechanism.

[0017] Figure 5 This is a structural diagram of the column support.

[0018] Figure 6 This is a structural diagram of the clamping plate.

[0019] Figure 7 This is a structural diagram of the hydraulic cylinder base.

[0020] In the diagram: 1. Left main beam; 2. Right main beam; 3. Thrust plate; 4. Column drive cylinder; 5. Column bracket; 51. Groove; 52. Mounting foot; 6. Cylinder seat; 61. Cylinder mounting hole; 62. Column through hole; 7. Column; 8. Pressure plate; 9. Support plate assembly; 91. Connecting frame; 92. Support plate; 10. Support plate drive mechanism; 11. Limiting plate. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] like Figure 1-7 As shown, a column-cylinder combined clamping mechanism for an ultra-high pressure filter press includes a column 7, a column support 5, a cylinder seat 6, a column drive cylinder 4, a support plate assembly 9, and a clamping plate 8; the cylinder seat 6 is a welded structure (see...). Figure 7 The cylinder seat has a cylinder mounting hole 61 in the middle for mounting the column drive cylinder, and four column through holes 62 are symmetrically arranged on both sides of the cylinder mounting hole; the column bracket 5 is a frame groove structure (see...). Figure 5Two column supports are symmetrically installed on the cylinder seats on both sides of the cylinder mounting holes. Each column support has four mounting feet 52 symmetrically arranged on its outer side, which are fixed to the side surface of the cylinder seat. The through holes of the column supports correspond to the four columns, which are used to limit the columns and prevent them from tilting too much during movement. The column 7 is a rectangular hollow thick-walled structure. One end of the column is welded with a cover plate that is inserted into the through hole of the column support. The other end of the column has a flange plate, which is fixed to the clamping plate 8. The piston rod end of the column drive cylinder 4 is connected to the clamping plate. The support plate assembly 9 includes a support plate 92, a connecting frame 91, and a support plate drive mechanism 10. The two support plates are connected by the connecting frame. The support plates are plate-shaped structures with a through hole in the middle of each support plate. The support plate drive mechanism is installed between the cylinder seat 6 and the connecting frame 91. The support plates are set in the slots 51 of the column supports and slide up and down along the slots 51 of the column supports under the drive of the support plate drive mechanism. The lower inner side of the cylinder seat is provided with two support plates and a limiting plate 11.

[0023] Working principle

[0024] The installation of the column-mounted hydraulic cylinder combined clamping mechanism on the filter press is shown in the figure. Figure 1 The clamping mechanism is connected to the thrust plate via the left and right main beams. Numerous filter plates are installed between the clamping plate and the thrust plate of the clamping mechanism. During operation, the clamping plate of the clamping structure moves forward to press the filter plates together. Then, the filter plates are fed in, causing the diaphragm filter plates to bulge and pressurize the material. The material pressure is applied in reverse to the clamping plate, which is supported by columns to prevent it from moving backward, thus maintaining a state of force balance.

[0025] Before the filter press starts filtration, the clamping mechanism is in its initial state, see Figure 2 At this time, the clamping plate is in the retracted position, the support plate extends downward and is located below the column; one end of the column is connected to the clamping plate, and the other end passes through the through hole of the column bracket and the cylinder seat.

[0026] When the filter press needs to compress the filter plates, the piston rod of the hydraulic cylinder extends, driving the column and pushing the pressing plate forward. After moving to a certain position, the drive mechanism of the support plate moves the support plate upward between the column and the cylinder seat. Because the pressing plate compresses the filter plates by a certain distance, the piston rod of the hydraulic cylinder can retract slightly, and the tail end of the column presses against the support plate. At this time, the filter plates are still in a compressed state. Figure 3 In this state, the columns press the filter plates together and support them via the clamping plates. When material is fed into the filter plates and pressed by the diaphragm, the columns support the plates to balance the pressing force.

[0027] After the diaphragm pressing is completed, the diaphragm is depressurized, and the column drive cylinder is appropriately pressurized, causing the piston rod to move forward slightly, which drives the tail end of the column away from the support plate. Then, the support plate can be pulled down to the underside of the column, making room for the column to retract. Then, the piston rod of the cylinder retracts, taking the column and the pressing plate back to the initial position. This cycle continues.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A column and ram combined jacking mechanism for an ultra-high pressure filter press, characterized in that, The system includes a column, a column bracket, a cylinder seat, a column drive cylinder, a support plate assembly, and a clamping plate. The cylinder seat has a cylinder mounting hole in the center for mounting the column drive cylinder, and four symmetrical column through holes are provided on both sides of the cylinder mounting hole. The column bracket has a frame-groove structure, with two column brackets symmetrically mounted on the cylinder seat on both sides of the cylinder mounting hole, and the through holes of the column brackets correspond to the four column through holes. One end of the column is inserted into the through hole of the column bracket, and the other end of the column is connected to the clamping plate. The piston rod end of the column drive cylinder is connected to the clamping plate. The support plate assembly includes a support plate, a connecting frame, and a support plate drive mechanism. Two support plates are connected by the connecting frame, each support plate has a through hole in the center, and the support plate drive mechanism is installed between the cylinder seat and the connecting frame. The support plate is positioned within the groove of the column bracket and slides up and down along the groove of the column bracket under the drive of the support plate drive mechanism.

2. The column and ram combined jacking mechanism of an ultra-high pressure filter press according to claim 1, characterized in that, The column is a rectangular hollow thick-walled structure with a cover plate welded to one end; the other end of the column has a flange plate, which is fixed to the clamping plate.

3. The column hydraulic cylinder combined clamping mechanism of an ultra-high pressure filter press according to claim 1, characterized in that, Each column support has four mounting feet symmetrically arranged on its outer side, which are used to fix it to the side surface of the cylinder seat.

4. The column hydraulic cylinder combined clamping mechanism of an ultra-high pressure filter press according to claim 1, characterized in that, The lower inner side of the cylinder seat is equipped with two limiting plates for support plates.

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