Real-time monitoring device for moisture content of sludge

Abstract

The utility model discloses a sludge moisture content real-time monitoring device which comprises a pressing cage, a pressing plate is arranged above the pressing cage, the pressing cage is arranged on a platform, a plurality of sets of drainage holes arrayed at equal intervals are formed in the side wall of the pressing cage, and a water guide groove communicated with the drainage holes is formed in the inner wall of the pressing cage. A drainage groove communicated with the water guide groove is formed in the lower portion of the pressing cage, and a drainage pipe is installed at the water outlet end of the drainage groove. All sewage is collected into the water collecting tank, the first weighing sensor is used for weighing and metering, and the metering data is sent to the external control center; the external control center can calculate the real-time water content of sludge in the pressing cage in real time according to real-time water outlet data detected by the first weighing sensor and sludge distribution data measured by the second weighing sensor, and when the water content in the pressing cage meets the requirement, the external control center can control the pressing plate to stop filter pressing, so that the filter pressing time of equipment is saved, and the filter pressing efficiency is improved. The working efficiency of equipment is improved, and the energy consumption of the equipment is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of sludge filter press technology, and in particular to a real-time monitoring device for sludge moisture content. Background Technology

[0002] Vertical sludge deep pressure filter dewatering equipment is a type of mechanical dewatering equipment that has gradually emerged in recent years. Compared with common sludge dewatering machines, it has the characteristics of simple system, large size, low operating cost, and high-pressure mechanical vertical extrusion of sludge. Under the conditions of proper selection and dosage of equipment reagents and precise control, the moisture content of the influent sludge is about 80%, and the average moisture content of the outfluent sludge can reach 50%-55%.

[0003] However, some existing vertical sludge deep filter press dewatering equipment cannot monitor the moisture content of the sludge in the pressing cage during the filtration process. Usually, the filtration time of the filter press is extended to ensure that the average sludge moisture content in the pressing cage meets the set value requirement. However, this method not only results in low working efficiency of the filter press equipment, but also increases the energy consumption of the filter press equipment. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing vertical sludge deep filter press dewatering equipment, which cannot monitor the sludge moisture content in the pressing cage during the filtration process. Usually, the filtration time of the filter press is extended to ensure that the average sludge moisture content in the pressing cage meets the set value. However, this method not only leads to low working efficiency of the filter press equipment, but also increases the energy consumption of the filter press equipment. This invention provides a sludge moisture content real-time monitoring device.

[0005] The purpose of this utility model is achieved through the following technical solution: a real-time monitoring device for sludge moisture content, including a squeezing cage, a pressure plate is provided above the squeezing cage, the squeezing cage is placed on a platform, a plurality of equally spaced arrays of drainage holes are opened on the side wall of the squeezing cage, a water guide groove connected to the drainage holes is installed on the inner wall of the squeezing cage, a drainage groove connected to the water guide groove is installed at the lower part of the squeezing cage, and a drainage pipe is installed at the outlet end of the drainage groove.

[0006] The drain pipe is connected to the collection tank via a telescopic hose. A first weighing sensor is installed on the bottom of the collection tank. A movable sludge spreading mechanism is installed above the pressing cage, and a second weighing sensor is installed at the bottom of the sludge spreading mechanism. The first and second weighing sensors are connected to an external control center. By setting up drainage holes and water guide channels, the wastewater discharged from the pressing cage during the filtration process can be diverted and collected into the collection tank through the drainage channel, drain pipe, and telescopic hose. The first weighing sensor measures the weight and sends the measurement data to the external control center. Based on the real-time water discharge data detected by the first weighing sensor and the sludge spreading data measured by the second weighing sensor, the external control center can calculate the real-time moisture content of the sludge in the pressing cage. When the moisture content in the pressing cage reaches the required level, the external control center can control the pressing plate to stop filtration, thereby saving filtration time, improving equipment efficiency, and effectively saving energy consumption.

[0007] A further technical solution is to install a filter screen inside the drain hole. The filter screen is cylindrical, and there is a gap between the drain hole and the filter screen. The top of the drain hole is flush with the inner side of the press cage. By being cylindrical and having a gap between the drain hole and the filter screen, the filter cloth can be prevented from completely sticking to the drain hole during the filtration process, which would reduce the drainage efficiency of the drain hole. The gap between the drain hole and the filter screen can ensure the drainage efficiency of the equipment.

[0008] A further technical solution is to install multiple sets of equally spaced reinforcing ribs on the outside of the pressing cage. The reinforcing ribs are connected to the water guide channel. The reinforcing ribs can improve the strength of the side wall of the pressing cage, prevent deformation under stress during the filtration process, and improve the service life of the pressing cage.

[0009] A further technical solution is to install pulleys on the bottom of the pressing cage and corresponding slide rails on the platform. The slide rails and pulleys work together to allow the pressing cage to move on the platform. After the pressing and filtration is completed, the platform moves to the next process, and the next pressing cage moves to the bottom of the pressing plate for pressing and filtration, thereby improving the operating efficiency of the equipment.

[0010] A further technical solution is that the drain pipe and the telescopic hose can be detachably connected. This detachable connection between the drain pipe and the telescopic hose can accommodate the installation and connection of different press cages and water collection tanks.

[0011] This invention has the following advantages: By combining drainage holes and water guide channels, the wastewater discharged from the pressing cage during the filtration process can be diverted and collected into a collection tank via drainage channels, drainage pipes, and telescopic hoses. A first weighing sensor measures the weight, and the measurement data is sent to an external control center. Based on the real-time water discharge data detected by the first weighing sensor and the sludge distribution data measured by the second weighing sensor, the external control center can calculate the real-time moisture content of the sludge in the pressing cage. When the moisture content in the pressing cage reaches the required level, the external control center can control the pressing plate to stop filtration, thereby saving filtration time, improving equipment efficiency, and effectively saving energy consumption. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the pressing and filtration state of the press cage of this utility model;

[0013] Figure 2 This is a front view structural diagram of the press cage of this utility model;

[0014] Figure 3 This is a cross-sectional view of the drainage hole of this utility model;

[0015] Figure 4 This is a schematic diagram of the sludge feeding mechanism of this utility model in the feeding state.

[0016] In the diagram, 1. Press cage; 2. Pressure plate; 3. Platform; 4. First weighing sensor; 5. Drain hole; 6. Water guide channel; 7. Drainage channel; 8. Drainage pipe; 9. Telescopic hose; 10. Water collection tank; 11. Second weighing sensor; 12. Slide rail; 13. Pulley; 14. Reinforcing rib; 15. Filter screen; 16. Sludge spreading mechanism. 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 1-4 As shown, a real-time sludge moisture content monitoring device includes a pressing cage 1, a pressure plate 2 is provided above the pressing cage 1, and the pressing cage 1 is set on a platform 3. The device is characterized in that: multiple sets of equally spaced drainage holes 5 are opened on the side wall of the pressing cage 1, a water guide channel 6 connected to the drainage holes 5 is installed on the inner wall of the pressing cage 1, a drainage channel 7 connected to the water guide channel 6 is installed at the lower part of the pressing cage 1, and a drainage pipe 8 is installed at the outlet end of the drainage channel 7.

[0024] The drain pipe 8 is connected to the collection tank 10 via the telescopic hose 9. A first weighing sensor 4 is installed on the bottom of the collection tank 10. A movable sludge spreading mechanism 16 is installed above the pressing cage 1. A second weighing sensor 11 is installed at the bottom of the sludge spreading mechanism 16. The first weighing sensor 4 and the second weighing sensor 11 are connected to the external control center. By setting the drain hole 5 and the water guide channel 6, the sewage discharged from the pressing cage 1 during the filtration process can be diverted and collected into the collection tank 10 through the drain channel 7, drain pipe 8 and telescopic hose 9. The first weighing sensor 4 is used to weigh and measure the sewage, and the measurement data is sent to the external control center. The external control center can calculate the real-time moisture content of the sludge in the pressing cage 1 based on the real-time water discharge data detected by the first weighing sensor 4 and the sludge spreading data measured by the second weighing sensor 11. When the moisture content in the pressing cage 1 reaches the required level, the external control center can control the pressure plate 2 to stop filtration, thereby saving the filtration time of the equipment, improving the working efficiency of the equipment, and effectively saving the energy consumption of the equipment.

[0025] A further technical solution is that a filter screen 15 is installed inside the drain hole 5. The filter screen 15 is cylindrical, and there is a gap between the drain hole 5 and the filter screen 15. The top of the drain hole 5 is flush with the inner side of the press cage 1. By being cylindrical and having a gap between the drain hole 5 and the filter screen 15, the filter cloth can be prevented from completely sticking to the drain hole 5 during the filtration process, which would reduce the drainage efficiency of the drain hole 5. The gap between the drain hole 5 and the filter screen 15 can ensure the drainage efficiency of the equipment.

[0026] A further technical solution is to install multiple sets of equally spaced reinforcing ribs 14 on the outside of the pressing cage 1. The reinforcing ribs 14 are connected to the water guide channel 6. The reinforcing ribs 14 can improve the strength of the side wall of the pressing cage 1, prevent deformation under stress during the filtration process, and improve the service life of the pressing cage 1.

[0027] A further technical solution is that a pulley 13 is installed on the bottom surface of the pressing cage 1, and a slide rail 12 corresponding to the pulley 13 is installed on the platform 3. The slide rail 12 and the pulley 13 are set to cooperate to enable the pressing cage 1 to move on the platform 3. After the pressing and filtration is completed, the platform 3 moves to the next process, and the next pressing cage 1 moves to the bottom of the pressing plate 2 to perform the pressing and filtration operation, thereby improving the operating efficiency of the equipment.

[0028] A further technical solution is that the drain pipe 8 and the telescopic hose 9 are detachably connected. This detachable connection between the drain pipe 8 and the telescopic hose 9 can accommodate the installation and connection of different pressing cages 1 and water collection tanks 10.

[0029] The working process of this utility model is as follows: During the filter pressing process using this device, the sludge feeding mechanism 16 first feeds the filter cloth onto the press cage 1 above the press cage 1 in conjunction with the filter cloth folding structure. The second weighing sensor 11 measures the total weight of the sludge during the feeding process of the sludge feeding mechanism 16. After the feeding is completed, the press cage 1 moves to the bottom of the pressure plate 2 through the cooperation of the slide rail 12 and the pulley 13. The water inlet of the water collection tank 10 is connected to the drain pipe 8 through the telescopic hose 9. The pressure plate 2 performs filter pressing on the press cage 1. The filtered water is discharged into the water collection tank 10 through the drain hole 5, the water guide trough 6, the drain trough 7 and the drain pipe 8. The first weighing sensor 4 can monitor the amount of sewage in the water collection tank 10 in real time. The external control center calculates the real-time moisture content of the sludge in the press cage 1 by using the real-time monitoring data of the first weighing sensor 4 and the total sludge feeding data measured by the second weighing sensor 11.

[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 real-time sludge moisture content monitoring device, comprising a pressing cage (1), characterized in that: The side wall of the press cage (1) has multiple sets of equally spaced drainage holes (5), the inner wall of the press cage (1) is equipped with a water guide groove (6) that communicates with the drainage holes (5), the lower part of the press cage (1) is equipped with a drainage groove (7) that communicates with the water guide groove (6), and the outlet end of the drainage groove (7) is equipped with a drainage pipe (8). The drain pipe (8) is connected to the water collection tank (10) via a telescopic hose (9). A first weighing sensor (4) is installed on the bottom surface of the water collection tank (10). A movable sludge spreading mechanism (16) is installed above the squeezing cage (1). A second weighing sensor (11) is installed at the bottom of the sludge spreading mechanism (16). The first weighing sensor (4) and the second weighing sensor (11) are connected to an external control center.

2. The sludge moisture content real-time monitoring device according to claim 1, characterized in that: A filter screen (15) is installed inside the drain hole (5). The filter screen (15) is cylindrical. There is a gap between the drain hole (5) and the filter screen (15). The top of the drain hole (5) is flush with the inner side of the press cage (1).

3. The sludge moisture content real-time monitoring device according to claim 1, characterized in that: The outer side of the press cage (1) is equipped with multiple sets of equally spaced reinforcing ribs (14), which are connected to the water guide channel (6).

4. The sludge moisture content real-time monitoring device according to claim 1, characterized in that: A pressure plate (2) is provided above the pressing cage (1). The pressing cage (1) is placed on the platform (3). A pulley (13) is installed on the bottom surface of the pressing cage (1). A slide rail (12) corresponding to the pulley (13) is installed on the platform (3).

5. The sludge moisture content real-time monitoring device according to claim 1, characterized in that: The drain pipe (8) and the telescopic hose (9) are detachably connected.

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