High-efficiency sludge filter pressing system with liquid collection measurement function

Abstract

The utility model discloses a kind of high-efficiency sludge filter-pressing systems with liquid collection measurement function, including filter-pressing platform, filter-pressing platform is provided with filter-pressing cavity, the top of filter-pressing cavity is provided with hydraulic cylinder, the telescopic end of hydraulic cylinder extends to filter-pressing cavity and is equipped with filter-pressing plate, filter-pressing platform and filter-pressing plate mutually close one side are all equipped with filter cloth.The beneficial effects of the utility model are: by setting first weighing sensor and discharge valve cooperation can control the total weight of feeding sludge in filter-pressing cavity, while setting liquid collecting hopper can all collect the liquid extruded and discharged in filter-pressing cavity, can measure and calculate the moisture content of sludge being filter-pressed in filter-pressing cavity according to the initial moisture content of feeding sludge and extrusion drainage total amount, wherein the moisture content of feeding sludge can be detected and obtained in early stage, so that the rapid and accurate measurement of sludge moisture content after dehydration is completed synchronously while filter-pressing, can satisfy the needs of fine management and resource utilization in sludge filter-pressing process.

Description

Technical Field

[0001] This utility model relates to the field of sludge dewatering technology, and in particular to a high-efficiency sludge dewatering system with liquid collection and measurement function. Background Technology

[0002] Sludge, as a solid waste generated from industrial production, municipal wastewater treatment, and agricultural activities, has always presented a key challenge in environmental protection and resource management. Given that sludge contains a large amount of water and various harmful substances, untreated sludge not only occupies valuable land resources but may also cause secondary pollution to the ecological environment. Therefore, efficient and economical dewatering of sludge to reduce its volume, stabilize its properties, and create conditions for subsequent disposal or resource utilization has become a key focus of current environmental protection technology research. Filter press equipment, as a core technology widely used in sludge dewatering, plays an irreplaceable role in sludge reduction due to its high solid-liquid separation capacity, good adaptability to various types of sludge, and relatively simple operation.

[0003] Existing filter press equipment typically lacks precise measurement capabilities for filtrate volume during operation, and also has limitations in real-time calculation of sludge moisture content after dewatering. This makes it difficult to meet the needs of refined management and resource utilization. In order to achieve precise measurement of filtrate collection during the sludge filter press process and simultaneously complete rapid calculation of sludge moisture content after dewatering, it is urgent to propose a high-efficiency sludge filter press system with filtrate collection and measurement functions. Utility Model Content

[0004] The purpose of this invention is to solve the technical problems of existing sludge filter press equipment lacking accurate measurement of filtrate volume and real-time calculation of sludge moisture content after dewatering, and to provide a high-efficiency sludge filter press system with liquid collection and measurement function.

[0005] The purpose of this utility model is achieved through the following technical solution: a high-efficiency sludge dewatering system with liquid collection and measurement function, including a dewatering platform, a dewatering chamber provided on the dewatering platform, a hydraulic cylinder provided above the dewatering chamber, the telescopic end of the hydraulic cylinder extending into the dewatering chamber and installing a dewatering plate, filter cloth installed on the side of the dewatering platform and the dewatering plate that are close to each other, and guide holes opened on both the dewatering platform and the dewatering plate. Below the filter press platform is a liquid collection hopper corresponding to the filter press chamber. Above the filter press chamber is a first guide pipe connected to the guide hole on the filter press plate. A second guide pipe is installed at the liquid outlet end of the first guide pipe, and the liquid outlet end of the second guide pipe corresponds to the liquid collection hopper. A screw feeder is installed at the feed end of the filter press chamber. A feed valve is installed between the discharge end of the screw feeder and the feed end of the filter press chamber. A feed pipe is provided at the feed end of the screw feeder. The feed pipe is located below the discharge end of the sludge raw material tank. The sludge raw material tank is installed on a first support. A first weighing sensor for weighing the sludge in the sludge raw material tank is installed on the first support. A discharge valve is installed at the discharge end of the sludge raw material tank. The liquid collection hopper is installed on the second bracket, and the second bracket is equipped with a second weighing sensor for weighing the liquid collected in the liquid collection hopper. A drain valve is installed at the outlet end of the liquid collection hopper. The hydraulic cylinder, screw feeder, first weighing sensor, discharge valve, feed valve, second weighing sensor and drain valve are all connected to an external control terminal.

[0006] By setting up a first weighing sensor and a discharge valve in conjunction, the total weight of the sludge fed into the filter press chamber can be controlled. When the weight of the sludge fed into the chamber reaches the required level, the external control terminal can control the discharge valve to close the discharge end of the sludge raw material tank. The screw feeder can improve the efficiency of sludge entering the filter press chamber. At the same time, the liquid collection hopper can collect all the liquid discharged from the upper and lower parts of the filter press chamber. Based on the initial moisture content of the fed sludge and the total amount of water discharged by the squeeze, the moisture content of the sludge being filtered in the filter press chamber can be calculated in real time. The moisture content of the fed sludge can be detected and obtained in the early stage, so that the moisture content of the sludge after dewatering can be calculated quickly and accurately at the same time as the filtration process. This can meet the needs of refined management and resource utilization in the sludge filtration process.

[0007] A further technical solution is to install a corrugated hose between the discharge end of the sludge raw material tank and the inlet pipe. By setting the corrugated hose, the discharge end of the sludge raw material tank and the inlet end of the inlet pipe can be protected, so as to avoid sludge overflow causing calculation errors and to prevent environmental damage. At the same time, the corrugated hose is a flexible connection between the discharge end of the sludge raw material tank and the inlet pipe.

[0008] A further technical solution involves installing a negative pressure tank between the first and second guide pipes. The negative pressure tank is equipped with a negative pressure pump connected to an external control terminal. The outlet of the negative pressure tank is connected to the second guide pipe. By cooperating with the negative pressure tank and the negative pressure pump, negative pressure can be generated in the first guide pipe, thereby quickly discharging the water on top of the filter cake in the filter chamber during the latter half of the filtration process. This prevents water from accumulating on top of the filter cake and causing liquid buildup, which would affect the filtration effect of the sludge.

[0009] A further technical solution is to install a multi-stage telescopic tube on the upper part of the filter press chamber. The liquid inlet end of the multi-stage telescopic tube is connected to multiple sets of guide holes on the filter press plate, and the liquid outlet end of the multi-stage telescopic tube is connected to the guide tube. By setting up the multi-stage telescopic tube, it can move up and down with the filter press plate to ensure the smooth operation of the equipment.

[0010] A further technical solution is to install a flow meter on the second guide pipe that is connected to an external control terminal. Based on the data fed back by the flow meter on the external control terminal, the water flow data in the second guide pipe can be monitored in real time. This not only provides support for determining when the negative pressure pump should be engaged, but also provides some data reference for the filter press process.

[0011] A further technical solution is to install a lifting mechanism connected to an external control terminal on the upper part of the filter press chamber. The lifting mechanism is used to lift the filter press chamber. By setting the lifting mechanism, the filter press chamber can be lifted, which makes it easier to move and clean the filter cake after filtration.

[0012] A further technical solution is to install a support frame on the side wall of the filter press chamber that is connected to the screw feeder. By setting up the support frame, the screw feeder can be provided with certain support, thereby improving the stability of the screw feeder when it rises and falls with the filter press chamber.

[0013] This invention has the following advantages: By setting a first weighing sensor and a discharge valve in combination, the total weight of the sludge fed into the filter press chamber can be controlled. When the weight of the sludge reaches the required level, the external control terminal can control the discharge valve to close the discharge end of the sludge raw material tank. The screw feeder can improve the efficiency of sludge entering the filter press chamber. At the same time, the liquid collection hopper can collect all the liquid discharged from the upper and lower parts of the filter press chamber. The moisture content of the sludge being filtered in the filter press chamber can be calculated in real time based on the initial moisture content of the sludge fed into the chamber and the total amount of water discharged by the squeeze. The moisture content of the sludge fed into the chamber can be detected and obtained in the early stage. Thus, the moisture content of the sludge after dewatering can be calculated quickly and accurately at the same time as the filtration process, which can meet the needs of refined management and resource utilization in the sludge filtration process. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of the overall structure of this utility model; Figure 2 For the present utility model Figure 1 Enlarged schematic diagram of structure A in the middle; Figure 3 For the present utility model Figure 1 Enlarged schematic diagram of the B-structure; In the diagram, 1. Filter press platform; 2. Filter press chamber; 3. Filter press plate; 4. Hydraulic cylinder; 5. Screw feeder; 6. Sludge raw material tank; 7. First weighing sensor; 8. Discharge valve; 9. First support; 10. Feed pipe; 11. Feed valve; 12. Liquid collection hopper; 13. Second support; 14. Second weighing sensor; 15. Drain valve; 16. Filter cloth; 17. First guide pipe; 18. Lifting mechanism; 19. Corrugated hose; 20. Support frame; 21. Second guide pipe; 22. Negative pressure tank; 23. Negative pressure pump; 24. Flow meter; 25. Multi-stage telescopic pipe. Detailed Implementation

[0015] 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.

[0016] 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.

[0017] 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.

[0018] 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.

[0019] 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.

[0020] 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.

[0021] like Figures 1-3 As shown, a high-efficiency sludge dewatering system with liquid collection and measurement function includes a dewatering platform 1, a dewatering chamber 2 is provided on the dewatering platform 1, a hydraulic cylinder 4 is provided above the dewatering chamber 2, the telescopic end of the hydraulic cylinder 4 extends into the dewatering chamber 2 and is equipped with a dewatering plate 3, filter cloth 16 is installed on the side of the dewatering platform 1 and the dewatering plate 3 that are close to each other, and guide holes are provided on both the dewatering platform 1 and the dewatering plate 3. Below the filter press platform 1 is a liquid collection hopper 12 corresponding to the filter press chamber 2. Above the filter press chamber 2 is a first guide pipe 17 connected to the guide hole on the filter press plate 3. A second guide pipe 21 is installed at the liquid outlet end of the first guide pipe 17, and the liquid outlet end of the second guide pipe 21 corresponds to the liquid collection hopper 12. A screw feeder 5 is installed at the feed end of the filter press chamber 2. A feed valve 11 is installed between the discharge end of the screw feeder 5 and the feed end of the filter press chamber 2. A feed pipe 10 is provided at the feed end of the screw feeder 5. The feed pipe 10 is located below the discharge end of the sludge raw material tank 6. The sludge raw material tank 6 is installed on the first support 9. A first weighing sensor 7 for weighing the sludge in the sludge raw material tank 6 is installed on the first support 9. A discharge valve 8 is installed at the discharge end of the sludge raw material tank 6. The liquid collection hopper 12 is mounted on the second bracket 13. The second bracket 13 is equipped with a second weighing sensor 14 for weighing the liquid collected in the liquid collection hopper 12. A drain valve 15 is installed at the outlet end of the liquid collection hopper 12. Hydraulic cylinder 4, screw feeder 5, first weighing sensor 7, discharge valve 8, feed valve 11, second weighing sensor 14 and drain valve 15 are all connected to an external control terminal.

[0022] By setting the first weighing sensor 7 and the discharge valve 8 in conjunction, the total weight of the sludge fed into the filter press chamber 2 can be controlled. When the weight of the sludge fed into the chamber reaches the required level, the external control terminal can control the discharge valve 8 to close the discharge end of the sludge raw material tank 6. The screw feeder 5 can improve the efficiency of sludge entering the filter press chamber 2. At the same time, the liquid collection hopper 12 can collect all the liquid discharged from the upper and lower pressure of the filter press chamber 2. Based on the initial moisture content of the fed sludge and the total amount of drainage from the pressure, the moisture content of the sludge being filtered in the filter press chamber 2 can be calculated in real time. The moisture content of the fed sludge can be detected and obtained in the early stage, so that the moisture content of the sludge after dewatering can be quickly and accurately calculated at the same time as the filtration, which can meet the needs of refined management and resource utilization in the sludge filtration process.

[0023] A corrugated hose 19 is installed between the discharge end of the sludge raw material tank 6 and the inlet pipe 10. By setting the corrugated hose 19, the discharge end of the sludge raw material tank 6 and the inlet end of the inlet pipe 10 can be protected to prevent sludge from overflowing and causing calculation errors, and to prevent environmental damage. In addition, the corrugated hose 19 is a flexible connection between the discharge end of the sludge raw material tank 6 and the inlet pipe 10.

[0024] A negative pressure tank 22 is installed between the first guide pipe 17 and the second guide pipe 21. A negative pressure pump 23 connected to an external control terminal is installed on the negative pressure tank 22. The water outlet of the negative pressure tank 22 is connected to the second guide pipe 21. By setting the negative pressure tank 22 and the negative pressure pump 23 to cooperate, negative pressure can be generated on the first guide pipe 17, so that the water on the top of the filter cake in the filter chamber 2 can be quickly discharged in the second half of the filter press, avoiding water accumulation on the top of the filter cake and affecting the sludge filtration effect.

[0025] A multi-stage telescopic tube 25 is installed on the upper part of the filter press chamber 2. The liquid inlet end of the multi-stage telescopic tube 25 is connected to multiple sets of guide holes on the filter press plate 3, and the liquid outlet end of the multi-stage telescopic tube 25 is connected to the first guide tube 17. By setting the multi-stage telescopic tube 25, it can move up and down with the filter press plate 3 to ensure the smooth operation of the equipment.

[0026] A flow meter 24 connected to an external control terminal is installed on the second guide pipe 21. Based on the data fed back by the flow meter 24, the water flow data in the second guide pipe 21 can be monitored in real time. This not only provides support for determining when the negative pressure pump 23 should be engaged, but also provides certain data reference for the filter press process.

[0027] A lifting mechanism 18 connected to an external control terminal is installed on the upper part of the filter press chamber 2. The lifting mechanism 18 is used to lift the filter press chamber 2. By setting the lifting mechanism 18, the filter press chamber 2 can be lifted, which makes it easier to move and clean the filter cake after the filter press is completed.

[0028] The side wall of the filter press chamber 2 is equipped with a support frame 20 that is connected to the screw feeder 5. By setting the support frame 20, the screw feeder 5 can be provided with certain support, thereby improving the stability of the screw feeder 5 when it rises and falls with the filter press chamber 2.

[0029] The working process of this utility model is as follows: The discharge valve 8 opens the discharge end of the sludge raw material tank 6 to discharge material into the feed pipe 10. The first weighing sensor 7 monitors the weight of the discharged material in the sludge raw material tank 6 in real time. At the same time, the screw feeder 5 can increase the feeding rate of the filter press chamber 2, so that the sludge can quickly enter the filter press chamber 2. When the first weighing sensor 7 detects that the sludge discharge amount reaches the set value, the external control terminal controls the discharge valve 8 to close. After the feed pipe 10 transports the sludge into the filter press chamber 2, the feed valve 11 is closed. At this time, the hydraulic cylinder 4 drives the filter press plate 3 to descend and start the filter press. At this time, the squeezed water is discharged into the collection hopper 12 through the guide hole on the filter press platform 1. The water on the top of the filter cake is discharged into the collection hopper 12 in sequence through the first guide pipe 17 and the second guide pipe 21. The second weighing sensor 14 at the bottom of the collection hopper 12 can monitor the weight of the squeezed water in real time. According to the total weight of the fed sludge and the initial content of the water, the weight of the water is adjusted accordingly. The system measures the water content and total amount of water squeezed out, and calculates the water content of the sludge being filtered in the filter chamber 2 in real time. The water content of the feed sludge can be obtained in the early stage. At the same time, the flow meter 24 on the second guide pipe 21 can detect the outflow of water in the second guide pipe 21. When the flow rate is less than the set value, the external control terminal controls the negative pressure pump 23 to start, so that the negative pressure tank 22 generates negative pressure and the first guide pipe 17 extracts the water accumulated on the top of the filter cake under negative pressure, thereby improving the sludge filtration effect. The real-time sludge water content can effectively improve the filtration efficiency. After the filtration is completed, the lifting mechanism 18 drives the filter chamber 2 to rise. The hydraulic cylinder 4 and the filter plate 3 are lifted after the filter chamber 2 is raised, thereby discharging the filter cake from the filter chamber 2. After the filter cake is discharged, the filter cloth 16 on the filter platform 1 moves to drive the sludge cake to be unloaded. At this time, the hydraulic cylinder 4 and the lifting mechanism 18 drive the filter chamber 2 and the filter plate 3 to reset, and the next round of filtration is carried out.

[0030] 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 high-efficiency sludge dewatering system with liquid collection and measurement function, comprising a dewatering platform (1), characterized in that: The filter press platform (1) is provided with a filter press chamber (2), and a hydraulic cylinder (4) is provided above the filter press chamber (2). The telescopic end of the hydraulic cylinder (4) extends into the filter press chamber (2) and is equipped with a filter press plate (3). Filter cloth (16) is installed on the side of the filter press platform (1) and the filter press plate (3) that are close to each other. Guide holes are provided on both the filter press platform (1) and the filter press plate (3). Below the filter press platform (1) is a liquid collection hopper (12) corresponding to the filter press chamber (2). Above the filter press chamber (2) is a first guide pipe (17) connected to the guide hole on the filter press plate (3). A second guide pipe (21) is installed at the liquid outlet end of the first guide pipe (17). The liquid outlet end of the second guide pipe (21) corresponds to the liquid collection hopper (12). A screw feeder (5) is installed at the feed end of the filter press chamber (2). A feed valve (11) is installed between the discharge end of the screw feeder (5) and the feed end of the filter press chamber (2). A feed pipe (10) is provided at the feed end of the screw feeder (5). The feed pipe (10) is located below the discharge end of the sludge raw material tank (6). The sludge raw material tank (6) is installed on a first support (9). A first weighing sensor (7) for weighing the sludge in the sludge raw material tank (6) is installed on the first support (9). A discharge valve (8) is installed at the discharge end of the sludge raw material tank (6). The liquid collection hopper (12) is mounted on the second bracket (13), and the second bracket (13) is equipped with a second weighing sensor (14) for weighing the liquid collected in the liquid collection hopper (12). A drain valve (15) is installed at the outlet end of the liquid collection hopper (12). The hydraulic cylinder (4), screw feeder (5), first weighing sensor (7), discharge valve (8), feed valve (11), second weighing sensor (14) and drain valve (15) are all connected to an external control terminal.

2. The high-efficiency sludge dewatering system with liquid collection and measurement function according to claim 1, characterized in that: A corrugated hose (19) is installed between the discharge end of the sludge raw material tank (6) and the feed pipe (10).

3. The high-efficiency sludge dewatering system with liquid collection and measurement function according to claim 1, characterized in that: A negative pressure tank (22) is installed between the first guide pipe (17) and the second guide pipe (21). A negative pressure pump (23) connected to an external control terminal is installed on the negative pressure tank (22). The water outlet of the negative pressure tank (22) is connected to the second guide pipe (21).

4. The high-efficiency sludge dewatering system with liquid collection and measurement function according to claim 3, characterized in that: The upper part of the filter press chamber (2) is equipped with a multi-stage telescopic tube (25). The liquid inlet end of the multi-stage telescopic tube (25) is connected to multiple sets of guide holes on the filter press plate (3), and the liquid outlet end of the multi-stage telescopic tube (25) is connected to the first guide tube (17).

5. A high-efficiency sludge dewatering system with liquid collection and measurement function according to claim 3, characterized in that: A flow meter (24) connected to an external control terminal is installed on the second guide pipe (21).

6. The high-efficiency sludge dewatering system with liquid collection and measurement function according to claim 1, characterized in that: The upper part of the filter press (2) is equipped with a lifting mechanism (18) connected to an external control terminal. The lifting mechanism (18) is used to lift the filter press (2) up and down.

7. The high-efficiency sludge dewatering system with liquid collection and measurement function according to claim 1, characterized in that: The side wall of the filter press (2) is equipped with a support frame (20) that is connected to the screw feeder (5).

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