Synchronous oil cylinder oil distribution device for filter press

Abstract

The utility model relates to the technical field of filter press equipment, in particular to a synchronous oil cylinder oil distribution device for a filter press, which comprises a filter press body, a hydraulic station, a filter plate and filter cloth, the filter plate and the filter cloth are movably mounted on the upper side of the filter press body, and the hydraulic station supplies oil to a power oil cylinder barrel of a hydraulic synchronous driving component to form power output. The piston rod drives each oil distribution piston to perform rapid piston motion in the oil distribution barrel, so that oil supply and pressure supply are simultaneously performed on each filter plate opening and closing oil cylinder or each filter cloth lifting oil cylinder by utilizing the oil supply effect of synchronous piston motion of each oil distribution barrel, and the extension and retraction of each filter plate opening and closing oil cylinder can be synchronously driven and controlled; the filter cloth lifting oil cylinder is synchronously driven and controlled to realize synchronous and accurate lifting of the filter cloth, so that the effect of auxiliary discharging is realized, and the situation that a traditional filter press adopts a plurality of hydraulic stations or trolley pulling plates for one-to-one discharging is replaced; and the cost investment is reduced.

Description

Technical Field

[0001] The utility model discloses a synchronous oil cylinder oil distribution device for a filter press, and relates to the technical field of filter press equipment. Background Art

[0002] A filter press is a device commonly used for solid-liquid separation. It can separate and collect solid particles suspended in liquid through a filter medium. The working principle of a filter press is to use a pressure difference to pass the liquid through the filter medium, so that the solid particles remain on the filter medium, and the filtrate flows out through the filter medium to achieve solid-liquid separation; for example, the high-pressure double-diaphragm low-temperature drying function integrated machine with a Chinese patent number of 202211468037.8, the filter press mainly realizes the push-pull opening and closing of the filter plate by setting a filter plate opening and closing cylinder, and the filter cloth lifting and lowering drive cylinder is pushed from the bottom of the track to press the double-diaphragm filter plate The height of the filter cloth on the mechanism is adjusted, and during the up and down movement of the filter cloth, the high-pressure nozzle pipe sprays cleaning water to clean the filter cloth; when the existing filter press is in use, most of them use multiple hydraulic stations to separately control each filter plate opening and closing cylinder and the filter cloth lifting cylinder to achieve the telescopic action. However, multiple hydraulic stations are used to separately control the oil of these cylinders, which is prone to uneven pressure distribution, resulting in synchronization failure and slow cylinder reaction speed. In this way, the control accuracy of the telescopic length of the cylinder piston rod is poor, and the cost investment is also relatively large. Therefore, it is necessary to propose an improved synchronous cylinder oil distribution device for the filter press. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a synchronous oil cylinder oil distribution device for a filter press to solve the problems mentioned in the above background technology.

[0004] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a synchronous oil cylinder oil distribution device for a filter press, comprising a filter press body and a hydraulic station, a filter plate and a filter cloth movably installed on the upper side of the filter press body, a plurality of filter plate opening and closing oil cylinders for pushing and pulling the filter plates to be opened and closed are horizontally installed on both sides of the filter press body, and a plurality of filter cloth lifting oil cylinders for lifting and lowering the filter cloth are vertically installed on both sides of the filter press body, the hydraulic station is connected to a hydraulic synchronous drive component through an oil outlet pipe and an oil return pipe, and the rear side of the hydraulic synchronous drive component is respectively connected to each filter plate opening and closing oil cylinder and each filter cloth lifting oil cylinder through a plurality of oil pipes for oil circuit connection; the hydraulic synchronous drive component structure comprises a power oil cylinder barrel, a plurality of oil distribution cylinders which are flange-connected to the rear side of the power oil cylinder barrel in sequence, and a mounting seat installed at the end of the oil distribution cylinder, the power oil cylinder barrel connection port and the connection ports on both sides of each oil distribution cylinder are fixedly provided with oil distribution end covers, so that a separately closed oil cavity activity space is formed in the power oil cylinder barrel and each oil distribution cylinder;

[0005] The power oil cylinder barrel and each oil distribution cylinder top front and rear sides are provided with connected front oil pipe openings and rear oil pipe openings, and the front oil pipe openings and rear oil pipe openings of each oil distribution cylinder are respectively connected with each filter plate opening and closing cylinder and filter cloth lifting cylinder through oil pipes.

[0006] A further improvement is that a piston rod is movably provided in the middle of the power oil cylinder barrel and each oil distribution barrel, and the piston rod tightly penetrates the middle of each oil distribution end cover.

[0007] A further improvement is that the power oil cylinder and each oil distribution cylinder are piston-connected with an oil distribution piston, each of the oil distribution pistons is fixedly connected to a piston rod, and each oil distribution piston is respectively arranged between the front oil pipe port and the rear oil pipe port.

[0008] As a further improvement, each of the oil distribution end covers has an outer ring formed with a groove opening connected to the rear oil pipe port, and each of the oil distribution end covers has a side formed with a plurality of side through holes connected to the groove opening, the side through holes being connected to the power oil cylinder barrel and the inner cavity of each oil distribution barrel.

[0009] A further improvement is that the front oil pipe port and the rear oil pipe port of the power oil cylinder are connected to the oil circuit of the hydraulic station through an oil outlet pipe and an oil return pipe respectively.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] The utility model has a simple and ingenious structure, and a hydraulic station is provided to supply oil to the power cylinder of the hydraulic synchronous drive component to form a power output, so that the piston rod drives each oil distribution piston to perform rapid piston movement in the oil distribution cylinder, and then utilizes the oil supply effect of the synchronous piston movement of each oil distribution cylinder to simultaneously supply oil and pressure to each filter plate opening and closing cylinder or each filter cloth lifting cylinder, which can synchronously drive and control the extension and contraction of each filter plate opening and closing cylinder, thereby realizing the synchronous and precise opening and closing of the filter plate to the filter plate for unloading and closing, or synchronously driving and controlling the filter cloth lifting cylinder to realize synchronous and precise lifting of the filter cloth, thereby realizing the function of auxiliary unloading, replacing the traditional filter press which uses multiple hydraulic stations or trolleys to pull the plates and unload, reducing the cost investment, greatly improving the use effect and control accuracy, and having a more positive and beneficial use effect than the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0013] Figure 1 This is a schematic diagram of the structure of the filter press body of the utility model;

[0014] Figure 2This is a schematic diagram of the connection structure between the filter plate opening and closing cylinder and the hydraulic synchronous drive assembly of the utility model;

[0015] Figure 3 This is a schematic diagram of the connection structure between the filter cloth lifting cylinder and the hydraulic synchronous drive assembly of the utility model;

[0016] Figure 4 This is a structural schematic diagram of the hydraulic synchronous drive assembly of the utility model;

[0017] Figure 5 This is a schematic diagram of the internal structure of the hydraulic synchronous drive assembly of the utility model;

[0018] Figure 6 This is a structural schematic diagram of the oil distribution end cover of the utility model;

[0019] In the figure: filter press body 1, filter plate 2, filter cloth 3, filter plate opening and closing cylinder 4, filter cloth lifting cylinder 5, hydraulic station 6, hydraulic synchronous drive assembly 7, power cylinder barrel 10, oil distribution cylinder 20, mounting seat 30, oil distribution piston 40, oil distribution end cover 50, groove opening 51, side through hole 52, piston rod 60, front oil pipe opening 70, rear oil pipe opening 80. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] See also Figure 1-6 The utility model provides a technical solution of a synchronous oil cylinder oil distribution device for a filter press: it comprises a filter press body 1 and a hydraulic station 6, a filter plate 2 and a filter cloth 3 movably mounted on the upper side of the filter press body 1, a plurality of filter plate opening and closing oil cylinders 4 for pushing and pulling the filter plates 2 for opening and closing horizontally mounted on both sides of the filter press body 1, and a plurality of filter cloth lifting oil cylinders 5 for lifting and lowering the filter cloth vertically mounted on both sides of the filter press body 1, the hydraulic station 6 is connected to a hydraulic synchronous drive assembly 7 through an oil outlet pipe and an oil return pipe, and the hydraulic synchronous drive assembly 7 is respectively connected to each filter plate opening and closing oil cylinder 4 and each filter cloth lifting oil cylinder 5 through a plurality of oil pipes for oil circuit connection, thereby synchronously controlling the telescopic effect of each filter plate opening and closing oil cylinder 4 and each filter cloth lifting oil cylinder 5;

[0022] In the above technical scheme, the structure of the hydraulic synchronous drive component 7 includes a power oil cylinder barrel 10, a plurality of oil distribution cylinders 20 which are flange-connected to the rear side of the power oil cylinder barrel 10 in sequence, and a mounting seat 30 installed at the end of the oil distribution cylinder 20. In this embodiment, four oil distribution cylinders 20 are provided, and the four oil distribution cylinders 20 are respectively connected to the four filter plate opening and closing cylinders 4 or the four filter cloth lifting cylinders 5 corresponding to the filter press body 1 through two inlet and outlet oil pipes for oil circuit connection, thereby synchronously controlling each filter plate opening and closing cylinder 4 to push and pull the filter plate 2 to quickly and continuously open and unload and close the plate, or synchronously controlling each filter cloth lifting cylinder 5 to simultaneously lift the filter cloth 3, thereby improving the control accuracy, facilitating the later cleaning of the filter cloth, and playing a role in auxiliary unloading of the filter press body 1.

[0023] The connecting port of the power oil cylinder barrel 10 and the connecting ports on both sides of each oil distribution cylinder 20 are fixedly provided with an oil distribution end cover 50, so that a separate closed oil chamber activity space is formed in the power oil cylinder barrel 10 and each oil distribution cylinder 20, and the front and rear sides of the top of the power oil cylinder barrel 10 and each oil distribution cylinder 20 are provided with a connected front oil pipe port 70 and a rear oil pipe port 80. The front oil pipe port 70 and the rear oil pipe port 80 of each oil distribution cylinder 20 are respectively connected to the oil inlet and outlet ports of each filter plate opening and closing cylinder 4 and the filter cloth lifting cylinder 5 through oil pipes. The oil chamber activity space and the oil pipes connected to the front oil pipe port 70 and the rear oil pipe port 80 are filled with hydraulic oil.

[0024] In order to realize the synchronous promotion of the operation of the oil circuits in each oil cylinder barrel 10, a piston rod 60 is movably arranged in the middle of the power oil cylinder barrel 10 and each oil distribution barrel 20, and the piston rod 60 is tightly penetrated by the middle of each oil distribution end cover 50, so that the piston rod 60 can move back and forth inside the oil distribution barrel 20 and the power oil cylinder barrel 10, and the power oil cylinder barrel 10 and each oil distribution barrel 20 are piston-connected with the oil distribution piston 40, and the front oil pipe port 70 and the rear oil pipe port 80 of the power oil cylinder barrel 10 are respectively connected to the oil circuit of the hydraulic station 6 through the oil outlet pipe and the return oil pipe, so that the oil enters the power oil cylinder barrel 10 through the oil outlet pipe connected to the hydraulic station 6, and promotes The oil distribution piston 40 in the power oil cylinder barrel 10 is displaced to one side of the oil distribution barrel 20, so that the piston rod 60 drives the oil distribution pistons 40 in each oil distribution barrel 20 to move forward synchronously, and the oil can be pushed into the corresponding oil cylinder from the oil pipe connected to the rear oil pipe port 80, and the front oil pipe port 70 of the oil distribution barrel 20 is connected to the oil outlet of the oil cylinder through the oil pipe to form a loop, so that the oil in the oil distribution barrel 20 goes in and out, thereby reaching the control of the oil cylinder of the filter press body 1, and the number of oil distribution barrels 20 can be set accordingly according to the number of oil cylinders to be controlled, and the piston telescopic movement of multiple oil cylinders of the filter press body 1 can be synchronously controlled.

[0025] In the above technical solution, each oil distribution piston 40 is fixedly connected to the piston rod 60 , and each oil distribution piston 40 is respectively arranged between the front oil pipe port 70 and the rear oil pipe port 80 , so that the oil distribution piston 40 can move forward and backward synchronously with the piston rod 60 .

[0026] In addition, each oil distribution end cover 50 is provided with a groove opening 51 in communication with the rear oil pipe opening 80 on its outer ring, and each oil distribution end cover 50 is provided with a plurality of side through holes 52 in communication with the groove opening 51 on one side. The side through holes 52 are in communication with the inner cavities of the power oil cylinder barrel 10 and each oil distribution barrel 20, so that the hydraulic oil can enter the groove opening 51 through the side through holes 52, and then enter the rear oil pipe opening 80 from the groove opening 51, so that the oil path of the rear oil pipe opening 80 is circulated.

[0027] It should be noted that the utility model is a synchronous cylinder oil distribution device for a filter press, which mainly improves the above-mentioned structure. The functions, components and structures not mentioned can be implemented by using components and structures in the prior art that can realize the corresponding functions.

[0028] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A synchronous oil cylinder oil distribution device for a filter press, comprising a filter press body (1) and a hydraulic station (6), a filter plate (2) and a filter cloth (3) movably mounted on the upper side of the filter press body (1), a plurality of filter plate opening and closing oil cylinders (4) mounted horizontally on both sides of the filter press body (1) for pushing and pulling the filter plate (2) to open and close, and a plurality of filter cloth lifting oil cylinders (5) mounted vertically on both sides of the filter press body (1) for lifting and lowering the filter cloth, characterized in that: The hydraulic station (6) is connected to a hydraulic synchronous drive assembly (7) via an oil outlet pipe and an oil return pipe, and the rear side of the hydraulic synchronous drive assembly (7) is respectively connected to each filter plate opening and closing cylinder (4) and each filter cloth lifting cylinder (5) via a plurality of oil pipes; The hydraulic synchronous drive assembly (7) structure comprises a power oil cylinder barrel (10), a plurality of oil distribution barrels (20) which are sequentially flange-connected to the rear side of the power oil cylinder barrel (10), and a mounting seat (30) mounted at the end of the oil distribution barrel (20), wherein the connection port of the power oil cylinder barrel (10) and the connection ports on both sides of each oil distribution barrel (20) are fixedly provided with an oil distribution end cover (50), so that a separate closed oil cavity activity space is formed in the power oil cylinder barrel (10) and each oil distribution barrel (20); The front and rear sides of the top of the power oil cylinder barrel (10) and each oil distribution barrel (20) are provided with a front oil pipe opening (70) and a rear oil pipe opening (80) which are connected to each other. The front oil pipe opening (70) and the rear oil pipe opening (80) of each oil distribution barrel (20) are respectively connected to each filter plate opening and closing oil cylinder (4) and filter cloth lifting oil cylinder (5) through oil pipes. Each of the oil distribution end covers (50) has an outer ring formed with a groove opening (51) connected to the rear oil pipe port (80), and each of the oil distribution end covers (50) has a side formed with a plurality of side through holes (52) connected to the groove opening (51), wherein the side through holes (52) are connected to the inner cavity of the power oil cylinder barrel (10) and each of the oil distribution barrels (20).

2. The synchronous cylinder oil distribution device for a filter press according to claim 1, characterized in that: A piston rod (60) is movably provided in the middle of the power oil cylinder barrel (10) and each oil distribution barrel (20), and the piston rod (60) tightly penetrates the middle of each oil distribution end cover (50).

3. The synchronous cylinder oil distribution device for a filter press according to claim 2, characterized in that: The power oil cylinder barrel (10) and each oil distribution barrel (20) are respectively piston-connected with an oil distribution piston (40), each of the oil distribution pistons (40) is fixedly connected to a piston rod (60), and each of the oil distribution pistons (40) is respectively arranged between a front oil pipe port (70) and a rear oil pipe port (80).

4. The synchronous cylinder oil distribution device for a filter press according to claim 1, characterized in that: The front oil pipe opening (70) and the rear oil pipe opening (80) of the power oil cylinder barrel (10) are connected to the oil circuit of the hydraulic station (6) via an oil outlet pipe and an oil return pipe, respectively.

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