Cloth filter press integrated sludge filter press structure

Abstract

This utility model discloses an integrated sludge filter press structure, comprising an mounting plate located above a filter press platform, a first hydraulic cylinder mounted on the bottom surface of the mounting plate, and a filter press cover mounted on the telescopic end of the first hydraulic cylinder, the filter press cover being located between the mounting plate and the filter press platform. The beneficial effects of this utility model are: the discharge end of the feed pipe is connected to one side of the filter press cover, allowing sludge to be directly fed into the filter press cover; the second hydraulic cylinder, in cooperation with the filter press plate, directly filters the discharged sludge; after filtration, the first hydraulic cylinder can drive the filter press cover to rise, while the second hydraulic cylinder remains stationary, allowing the sludge to be removed from the filter press chamber of the filter press cover. This achieves continuous operation of sludge feeding, filtration, and discharge within the filter press cover, reducing the sludge transport process on the filter cloth, effectively improving the overall sludge filtration efficiency, and realizing large-scale sludge treatment and energy saving.

Description

Technical Field

[0001] This utility model relates to the field of sludge filter press technology, and in particular to an integrated sludge filter press structure with cloth filter press. Background Technology

[0002] Sludge dewatering is a crucial solid-liquid separation step in modern water treatment processes. Its core purpose is to minimize sludge volume, laying the foundation for subsequent treatment and resource utilization. Conditioned sludge is pumped by a high-pressure pump between the filter plates of a filter press. Under extremely high pump pressure, the water in the sludge is forced through a special filter cloth covering the filter plates, while solid particles are trapped to form a filter cake. This process typically consists of two stages: first, a low-pressure filling stage to ensure the chamber is filled with material; then, a high-pressure pressing stage where a hydraulic system further squeezes the filter cake, continuously removing water.

[0003] Against the backdrop of increasingly stringent national environmental protection policies, clear and rigid indicators have been established for the moisture content of municipal landfill sludge, requiring it to be below 60%. Furthermore, reducing sludge moisture content directly impacts subsequent disposal costs—lower water content means lower transportation and processing costs, resulting in significant economic advantages. However, some widely used sludge filter presses suffer from efficiency bottlenecks in their processes. These devices typically require a "material spreading" process, where sludge is evenly laid on a filter belt, and then transported by the filter cloth to the filter press body for pressing. This transport process on the filter cloth prolongs the pretreatment time before the sludge enters the high-pressure zone, becoming a key delay factor restricting the entire production line's operating cycle. This hinders further improvements in the overall filtration efficiency of the equipment, failing to fully meet the urgent needs of large-scale processing and energy conservation. Utility Model Content

[0004] The purpose of this invention is to overcome the efficiency bottleneck in the process flow of some existing sludge filter presses. These devices typically require a "material spreading" process, where sludge is evenly spread on a filter belt, and then the filter cloth transports the sludge to the filter press body for pressing. This conveying process on the filter cloth prolongs the pretreatment time before the sludge enters the high-pressure zone, becoming a key delay that restricts the operation cycle of the entire production line. This makes it difficult to further improve the overall filtration efficiency of the equipment, and it cannot fully meet the urgent needs of large-scale processing and energy conservation. This invention provides an integrated material spreading and filter pressing sludge filter structure.

[0005] The purpose of this utility model is achieved through the following technical solution: an integrated sludge filter press structure with cloth and filter press, including an installation plate located above the filter press platform, a first hydraulic cylinder installed on the bottom surface of the installation plate, a filter press cover installed on the telescopic end of the first hydraulic cylinder, the filter press cover being located between the installation plate and the filter press platform, a filter press chamber being provided inside the filter press cover, a second hydraulic cylinder installed on the bottom surface of the installation plate, the telescopic end of the second hydraulic cylinder extending into the filter press cover and installing a filter press plate, the side wall of the filter press plate being slidably connected to the inner side wall of the filter press cover;

[0006] A feed pipe is installed on one side of the mounting plate. The discharge end of the feed pipe is connected to the side wall of the filter press hood, and a valve is installed on the discharge end of the feed pipe. By connecting the discharge end of the feed pipe to one side of the filter press hood, sludge can be directly discharged into the filter press hood for feeding. The second hydraulic cylinder works in conjunction with the filter press plate to directly filter the discharged sludge. After filtration, the first hydraulic cylinder can drive the filter press hood to rise, while the second hydraulic cylinder remains stationary, allowing the sludge to be removed from the filter chamber of the filter press hood. This enables continuous operation of sludge feeding, filtration, and discharge in the filter press hood, reducing the sludge conveying process on the filter cloth, effectively improving the overall sludge filtration efficiency, and achieving large-scale sludge treatment and energy saving.

[0007] The filter press platform is equipped with a drainage channel and a filter cloth connected to an external power unit. The external power unit can drive the filter cloth to move on the filter press platform, which can move the filtered sludge directly to the unloading station for unloading, allowing the filter press to quickly start the next filter press cycle, thereby further improving the sludge filtration efficiency.

[0008] A further technical solution is that the feed pipe includes a telescopic pipe and a fixed pipe. The telescopic pipe can extend and retract along the fixed pipe. The telescopic pipe and the fixed pipe are respectively connected to the filter press cover and the mounting plate through two sets of fixing plates. By setting the feed pipe to consist of a telescopic pipe and a fixed pipe, the telescopic pipe can be raised and lowered with the filter press cover. The connection of the telescopic pipe and the fixed pipe to the filter press cover and the mounting plate through two sets of fixing plates further ensures the stability of the telescopic pipe when it extends and retracts inside the fixed pipe.

[0009] A further technical solution is to install a sludge flow meter on the telescopic pipe, which is connected to an external control terminal. By connecting the sludge flow meter to the external control terminal, the sludge feed rate can be controlled by the external control terminal, ensuring that the sludge feed rate is at the optimal filter press sludge rate, thereby ensuring the sludge filter press efficiency.

[0010] A further technical solution is that a drain hole is provided on the upper part of the filter press cover. The outer side of the drain hole is connected to a negative pressure pipe. The end of the negative pressure pipe away from the drain hole is connected to an external negative pressure device. The negative pressure pipe is a corrugated hose. The drain hole on the upper part of the filter press cover can drain the water on the upper part of the filter press plate during the filter pressing process, so as to avoid water remaining on the upper part of the filter press plate. At the same time, the corrugated hose of the negative pressure pipe can have a certain amount of expansion and contraction, which can meet the expansion and contraction of the negative pressure pipe when it moves up and down with the filter press cover.

[0011] A further technical solution is to install a sealing ring corresponding to the filter cloth at the bottom of the filter press cover. By setting the sealing ring at the bottom of the filter press cover, the sealing between the bottom of the filter press cover and the filter cloth can be improved during the filtration process, thereby preventing sludge from overflowing from the bottom of the filter press cover during the filtration process and ensuring the filtration quality of the sludge material.

[0012] This invention has the following advantages: By connecting the discharge end of the feed pipe to one side of the filter press hood, sludge can be directly fed into the filter press hood through the feed pipe. The second hydraulic cylinder, in conjunction with the filter plate, can directly filter the discharged sludge. After filtration, the first hydraulic cylinder can drive the filter press hood to rise, while the second hydraulic cylinder remains stationary, allowing the sludge to be removed from the filter chamber of the filter press hood. This enables continuous operation of sludge feeding, filtration, and discharge within the filter press hood, reducing the sludge transport process on the filter cloth, effectively improving the overall sludge filtration efficiency, and achieving large-scale sludge treatment and energy saving. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a front view sectional diagram of the present invention;

[0015] Figure 3 This is a schematic diagram of the sludge material discharge state in the filter press according to this utility model;

[0016] In the diagram, 1. Mounting plate; 2. First hydraulic cylinder; 3. Filter press cover; 4. Second hydraulic cylinder; 5. Filter press plate; 6. Filter cloth; 7. Filter press platform; 8. Feed pipe; 801. Telescopic pipe; 802. Fixed pipe; 9. Valve; 10. Sludge flow meter; 11. Sealing ring; 12. Drain hole; 13. Negative pressure pipe; 14. Fixed plate; 15. Sludge material. Detailed Implementation

[0017] 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. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] like Figures 1-3As shown, an integrated cloth filter press sludge filter structure includes an installation plate 1 located above a filter press platform 7. A first hydraulic cylinder 2 is installed on the bottom surface of the installation plate 1. A filter press cover 3 is installed on the telescopic end of the first hydraulic cylinder 2. The filter press cover 3 is located between the installation plate 1 and the filter press platform 7. A filter press chamber is provided inside the filter press cover 3. A second hydraulic cylinder 4 is installed on the bottom surface of the installation plate 1. The telescopic end of the second hydraulic cylinder 4 extends into the filter press cover 3 and is equipped with a filter press plate 5. The side wall of the filter press plate 5 is slidably connected to the inner side wall of the filter press cover 3.

[0024] A feed pipe 8 is installed on one side of the mounting plate 1. The discharge end of the feed pipe 8 is connected to the side wall of the filter press hood 3, and a valve 9 is installed on the discharge end of the feed pipe 8. By connecting the discharge end of the feed pipe 8 to one side of the filter press hood 3, sludge 15 can be directly discharged into the filter press hood 3 for feeding. The second hydraulic cylinder 4 is set up to cooperate with the filter press plate 5 to directly filter the discharged sludge 15. After the filtration is completed, the first hydraulic cylinder 2 can drive the filter press hood 3 to rise. At this time, the second hydraulic cylinder 4 remains stationary, so that the sludge 15 is removed from the filter press chamber of the filter press hood 3. This realizes the continuous operation of sludge 15 in the filter press hood 3 for feeding, filtration and discharge, reducing the conveying process of sludge 15 on the filter cloth 6, effectively improving the overall filtration efficiency of sludge, and realizing large-scale treatment of sludge 15 and energy saving.

[0025] The filter press platform 7 is equipped with a drainage channel and a filter cloth 6 connected to an external power unit. The external power unit can drive the filter cloth 6 to move on the filter press platform 7. This allows the filtered sludge material 15 to be moved directly to the unloading station for unloading under the drive of the filter cloth 6, so that the filter press hood 3 can quickly start the next filter press cycle, thereby further improving the filter pressing efficiency of the sludge material 15.

[0026] The feed pipe 8 includes a telescopic pipe 801 and a fixed pipe 802. The telescopic pipe 801 can extend and retract along the fixed pipe 802. The telescopic pipe 801 and the fixed pipe 802 are respectively connected to the filter press cover 3 and the mounting plate 1 through two sets of fixing plates 14. By setting the feed pipe 8 to consist of a telescopic pipe 801 and a fixed pipe 802, the telescopic pipe 801 can be raised and lowered with the filter press cover 3. The connection of the telescopic pipe 801 and the fixed pipe 802 to the filter press cover 3 and the mounting plate 1 through two sets of fixing plates 14 further ensures the stability of the telescopic pipe 801 when it extends and retracts within the fixed pipe 802.

[0027] A sludge flow meter 10 is installed on the telescopic pipe 801. The sludge flow meter 10 is connected to an external control terminal. By connecting the sludge flow meter 10 to the external control terminal, the sludge feed rate of the sludge flow meter 10 can be controlled by the external control terminal to ensure that the sludge feed rate of the sludge material 15 is at the optimal filter press sludge rate, thereby ensuring the filter press efficiency of the sludge material 15.

[0028] The upper part of the filter press cover 3 is provided with a drain hole 12. The outer side of the drain hole 12 is connected to the negative pressure pipe 13. The end of the negative pressure pipe 13 away from the drain hole 12 is connected to an external negative pressure device. The negative pressure pipe 13 is a corrugated hose. The drain hole 12 at the upper part of the filter press cover 3 can drain the water on the upper part of the filter press plate 5 during the filter pressing process, so as to avoid water remaining on the upper part of the filter press plate 5. At the same time, the corrugated hose of the negative pressure pipe 13 can have a certain amount of expansion and contraction, which can meet the expansion and contraction of the negative pressure pipe 13 when it moves up and down with the filter press cover 3.

[0029] The lower part of the filter press hood 3 is equipped with a sealing ring 11 corresponding to the filter cloth 6. By setting the sealing ring 11 at the lower part of the filter press hood 3, the sealing between the lower part of the filter press hood 3 and the filter cloth 6 can be improved during the filter pressing process, thereby preventing sludge from overflowing from the lower part of the filter press hood 3 during the filter pressing process and ensuring the filter pressing quality of the sludge material 15.

[0030] The working process of this utility model is as follows: When using this filter press structure to filter sludge, firstly, valve 9 is opened to feed sludge into the filter press hood 3 through the feed pipe 8. The sludge flow meter 10 is responsible for monitoring the amount of sludge 15 fed in. When the amount of sludge fed in reaches the set amount by the external control terminal, the external control terminal controls valve 9 to close. At this time, the second hydraulic cylinder 4 is started to drive the filter press plate 5 to filter the sludge 15. During the filtration process, the water in the lower part is discharged through the filter cloth 6 and the filter press platform 7, and the water in the upper part of the filter press plate 5 is discharged through the drain hole 12 and... After the negative pressure pipe 13 is discharged and the filtration is completed, the second hydraulic cylinder 4 and the filter plate 5 remain stationary. The first hydraulic cylinder 2 drives the filter cover 3 to rise. Under the action of the filter plate 5, the sludge material 15 is removed from the filter chamber of the filter cover 3. After the sludge material 15 is completely removed from the filter cover 3, the second hydraulic cylinder 4 drives the filter plate 5 to rise. At this time, the filter cloth 6 moves under the action of the external power device to discharge the material. Finally, the first hydraulic cylinder 2 and the second hydraulic cylinder 4 drive the filter cover 3 and the filter plate 5 to reset and start a new round of filtration.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cloth-integrated sludge filter press structure, comprising an mounting plate (1) located above a filter press platform (7), wherein a first hydraulic cylinder (2) is mounted on the bottom surface of the mounting plate (1), a filter press cover (3) is mounted on the telescopic end of the first hydraulic cylinder (2), the filter press cover (3) is located between the mounting plate (1) and the filter press platform (7), and a filter press chamber is provided inside the filter press cover (3), characterized in that: The bottom surface of the mounting plate (1) is equipped with a second hydraulic cylinder (4), the telescopic end of the second hydraulic cylinder (4) extends into the filter press cover (3) and is equipped with a filter press plate (5), and the side wall of the filter press plate (5) is slidably connected to the inner side wall of the filter press cover (3). A feed pipe (8) is installed on one side of the mounting plate (1). The discharge end of the feed pipe (8) is connected to the side wall of the filter press cover (3), and a valve (9) is installed on the discharge end of the feed pipe (8). The filter press platform (7) is provided with a drainage channel and a filter cloth (6) connected to an external power device is provided on the filter press platform (7). The external power device can drive the filter cloth (6) to move on the filter press platform (7).

2. The integrated cloth filter press structure for sludge filtration according to claim 1, characterized in that: The feed pipe (8) includes a telescopic pipe (801) and a fixed pipe (802). The telescopic pipe (801) can extend and retract along the fixed pipe (802). The telescopic pipe (801) and the fixed pipe (802) are respectively connected to the filter press cover (3) and the mounting plate (1) through two sets of fixing plates (14).

3. The integrated cloth filter press structure for sludge filtration according to claim 2, characterized in that: A sludge flow meter (10) is installed on the telescopic pipe (801), and the sludge flow meter (10) is connected to an external control terminal.

4. The integrated cloth filter press structure for sludge filtration according to claim 1, characterized in that: The filter press cover (3) has a drain hole (12) on its upper part. The outside of the drain hole (12) is connected to the negative pressure pipe (13). The end of the negative pressure pipe (13) away from the drain hole (12) is connected to an external negative pressure device. The negative pressure pipe (13) is a corrugated hose.

5. The integrated cloth filter press structure for sludge filtration according to claim 1, characterized in that: The lower part of the filter press cover (3) is equipped with a sealing ring (11) corresponding to the filter cloth (6).

Images