Automatic sludge discharging and stirring structure

Abstract

The utility model relates to an automatic sludge discharging and stirring structure which comprises a filter element, a stirring device and a stirring device. The filter cloth is wrapped outside the filter element, a gap is reserved between the filter cloth and the surface of the filter element, and the filter cloth is made of a breathable material; the vibration mechanism is arranged at the top of the filter element and comprises a vibration motor and a vibration support, and the vibration support is connected to the filter element through a connecting rod; the stirring mechanism is arranged at the bottom of the filter cavity and comprises a stirring motor and a stirring paddle; the stirring paddle comprises a conical helical ribbon and an inclined blade paddle, the conical helical ribbon spirally surrounds the periphery of the stirring shaft and extends upwards from the bottom of the stirring shaft, the inclined blade paddle consists of a plurality of blades and is radially distributed on the outer side of the conical helical ribbon, and the included angle between each blade and the stirring shaft is an acute angle. Through the synergistic effect of expansion of the filter cloth, assistance of the vibration mechanism and the stirring mechanism, automatic falling and smashing treatment of filter cakes are achieved, and the mud cake falling effect is remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of filtering equipment, in particular to an automatic mud unloading and stirring structure. BACKGROUND

[0002] The existing precise microfiltration equipment filters through high polymer sintered filter tubes as filtering components. The filter tank is first filled with mud liquid to be filtered, and a layer of dry mud after filtration is formed on the surface of the filter tube. After the filtration is completed, compressed air is blown out from the inside of the filter tube to break the mud cake and make the mud cake fall off. However, the actual mud cake falling effect is not good, and manual mud cake unloading is still needed, which is complicated and not clean.

[0003] At present, no effective solution has been proposed for the problems in the related art. CONTENT OF THE INVENTION

[0004] The embodiment of the present application provides an automatic mud unloading and stirring structure to at least solve the problem of poor mud cake falling effect in the related art.

[0005] The embodiment of the present application provides an automatic mud unloading and stirring structure, which comprises:

[0006] The filter core is a hollow cylindrical structure, and the surface has micropores;

[0007] The filter cloth is wrapped outside the filter core, and a gap is left between the filter cloth and the surface of the filter core. The filter cloth is a gas permeable material;

[0008] The vibration mechanism is arranged at the top of the filter core and comprises a vibration motor and a vibration support. The vibration support is connected to the filter core through a connecting rod.

[0009] The stirring mechanism is arranged at the bottom of the filter cavity and comprises a stirring motor and a stirring paddle. The stirring paddle comprises a conical spiral belt and an inclined blade paddle. The conical spiral belt is spirally arranged around the stirring shaft and extends upward from the bottom of the stirring shaft. The inclined blade paddle comprises a plurality of blades and is radially distributed outside the conical spiral belt. The included angle between each blade and the stirring shaft is an acute angle.

[0010] In one of the embodiments, the pitch of the conical spiral belt part of the stirring paddle is 5-10 cm, the inclination angle of the blade of the inclined blade paddle part is 30-60 degrees, and the distance between the bottom of the stirring paddle and the bottom of the filter cavity is 5-10 cm.

[0011] In one of the embodiments, the inner wall of the filter cavity is provided with at least two annular guide rails, and the outer side of the vibration support is provided with a sliding block matched with the annular guide rail.

[0012] In one of the embodiments, the surface of the filter core is a concave-convex structure, and the convex parts and the concave grooves are uniformly distributed along the axial direction and the circumferential direction of the filter core.

[0013] In one of the embodiments, a blocking structure is further included, the blocking structure comprises a baffle, the baffle is arranged on the spraying path of the spraying pipeline in the filter cavity, between the filter core row pipe and the filter cavity cylinder wall; the baffle is an arc-shaped plate, one end of which is fixed on the inner wall of the filter cavity, and the other end extends to the outside of the filter core row pipe.

[0014] In one of the embodiments, the vibration motor is connected with the vibration support through an elastic connecting piece, the elastic connecting piece is a spring or a rubber pad.

[0015] In one of the embodiments, the vibration support is in a ring structure, surrounds the upper end of the filter core, and the vibration support is evenly distributed around the filter core through at least three connecting rods, the length of the connecting rod is adjustable.

[0016] In one of the embodiments, the filter cavity top is provided with an air inlet, the air inlet is connected with the air pump through a pipeline, the air inlet is located at the upper end of the filter core, and the center axis of the air inlet coincides with the center axis of the filter core.

[0017] In one of the embodiments, the filter cavity bottom is provided with a sludge discharge port, the sludge discharge port is located directly below the stirring paddle, and the center axis of the sludge discharge port coincides with the center axis of the stirring paddle.

[0018] In one of the embodiments, the filter cloth is detachably mounted outside the filter core through a fixing device, the fixing device comprises a buckle or a bandage.

[0019] Compared with the related art, through the cooperation of the filter cloth expansion, the vibration mechanism auxiliary and the stirring mechanism, the automatic falling and stirring of the filter cake are realized, the falling effect of the filter cake is significantly improved, and the problem of poor falling effect of the filter cake in the related art is solved.

[0020] The details of one or more embodiments of the present application are presented in the following drawings and description to make other features, objects and advantages of the present application more clear and easy to understand. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, the schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0022] Figure 1 is a structural schematic diagram of a filter press provided by an embodiment of the present application;

[0023] Figure 2 is a structural schematic diagram of a stirring structure provided by an embodiment of the present application;

[0024] Figure 3Figure 1 is a structural schematic diagram of a stirring paddle in a stirring structure provided by an embodiment of the present application. DETAILED DESCRIPTION

[0025] For the purpose of making the objectives, technical solutions and advantages of the present application clearer, the present application is described and explained below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application. Based on the embodiments provided by the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0026] Obviously, the drawings in the following description are only some examples or embodiments of the present application, and for those of ordinary skill in the art, the present application can be applied to other similar scenarios without creative effort based on these drawings. In addition, it can be understood that although the efforts made in this development process can be complex and lengthy, for those of ordinary skill in the art related to the content disclosed in the present application, some design, manufacture or production changes based on the technical content disclosed in the present application are only routine technical means and should not be understood as insufficient disclosure of the present application.

[0027] In the present application, "embodiment" means that the specific features, structures or characteristics described in combination with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily mean the same embodiment, nor is it an independent or alternative embodiment to other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in the present application can be combined with other embodiments without conflict.

[0028] In an embodiment, the present application provides an automatic desilting stirring structure, comprising:

[0029] Filter core 110: hollow cylindrical structure, surface with micropores, used to filter slurry liquid and form filter cake on the surface. The material of the filter core 110 is a high polymer sintered material, which has good filtering performance and mechanical strength.

[0030] Filter cloth 120: air-permeable material, wrapped outside the filter core 110, leaving a gap of 1-5 mm between the surface of the filter core 110. The material of the filter cloth 120 can be polyester fiber, which has good air permeability and corrosion resistance.

[0031] Vibration mechanism 130: Set at the top of the filter core 110, including a vibration motor and a vibration bracket, the vibration bracket is evenly distributed around the filter core 110 through at least 3 connecting rods, the length of the connecting rod can be adjusted. The vibration motor is connected with the vibration bracket through elastic connecting piece, the vibration frequency adjustment range is 10-50 hertz.

[0032] Stirring mechanism 140: Set at the bottom of the filter chamber, including stirring motor 141 and stirring paddle 142. Stirring paddle 142 is composed of conical screw belt 1421 and inclined blade paddle 1422, conical screw belt 1421 is spiral around the stirring shaft, extending from the bottom of the stirring shaft upward, forming a conical structure; Inclined blade paddle 1422 is composed of multiple blades, which are distributed radially on the outside of the conical screw belt 1421, and the angle between each blade and the stirring shaft is acute.

[0033] As shown in 1, in the filter press 100, the filter core 110 is sintered by ultra-high molecular weight polyethylene powder to filter, when filtering, first pump the thick slurry into the tank body 400 from the wet mud bin 101, then use the vacuum pump 102 to extract negative pressure, form filter cake on the outer surface of the filter core 110, and water enters the filter water bin 103 through the micropore channel of the filter core 110, so as to separate the thick slurry pumped into the tank body 400. With the progress of filtration, the liquid level in the tank body 400 will continue to drop, eventually below the liquid level of the filter core 110. When filtering the slurry, the slurry liquid enters the filter chamber through the liquid inlet and fills the entire filter tank. The vacuum pump starts to generate a negative pressure environment. Under the action of negative pressure, the slurry liquid is filtered through the micropores on the surface of the filter core 110, and the solid particles are trapped on the surface of the filter core 110 to form filter cake, and the filtered liquid is discharged through the channel inside the filter core 110. During the filtration process, the filter cloth 120 is tightly attached to the surface of the filter core 110, which plays a role in auxiliary filtration and protection of the filter core 110. After the filtration is completed, the unloading process is started, the air pump is started, and compressed air is introduced into the filter core 110. The compressed air passes through the channel inside the filter core 110 to the gap between the filter core 110 and the filter cloth 120. The compressed air generates positive pressure inside the filter core 110, causing the filter cloth 120 to expand and deform. The expansion of the filter cloth 120 breaks the adhesion between the filter cake and the surface of the filter core 110, causing the filter cake to crack and fall off the surface of the filter core 110. At the same time, the vibration motor at the top is started, driving the vibration bracket to vibrate. The vibration bracket transmits the vibration to the filter core 110 through the connecting rod, further loosening the filter cake, making it easier to fall off. The vibration frequency can be adjusted according to the characteristics of the filter cake to achieve the best vibration effect. The falling filter cake falls to the bottom of the filter chamber under the action of gravity. The stirring motor 141 at the bottom is started, driving the stirring paddle 142 to rotate. The conical screw belt 1421 and the inclined blade paddle 1422 of the stirring paddle 142 work together to crush the falling filter cake, reducing the volume of the filter cake, so that it can smoothly pass through the mud outlet at the bottom. After stirring, the mud outlet is opened, and the crushed filter cake is discharged from the filter chamber, completing the entire unloading process.

[0034] The automatic falling and crushing of the filter cake are realized by the cooperation of the filter cloth 120 expansion, the vibration mechanism 130 auxiliary and the stirring mechanism 140, and the falling effect of the filter cake is significantly improved. Specifically, the filter cloth 120 expands under the action of compressed air, which can effectively destroy the adhesion of the filter cake and make it fall off from the surface of the filter core 110; the vibration mechanism 130 further loosens the filter cake by vibrating the filter core 110, thereby improving the falling effect, and the frequency of the vibration motor can be adjusted to select the optimal vibration frequency according to the characteristics of the filter cake; the stirring mechanism 140 crushes the falling filter cake to ensure that the filter cake can smoothly pass through the mud discharge port and avoid blockage, and the design of the conical spiral belt 1421 and the inclined blade paddle 1422 can effectively increase the stirring range and shear force, thereby improving the stirring efficiency.

[0035] In one embodiment, the pitch of the conical spiral belt 1421 part of the stirring paddle 142 is 5-10 cm, the blade inclination angle of the inclined blade paddle 1422 part is 30-60 degrees, and the distance between the bottom of the stirring paddle 142 and the bottom of the filter cavity is 5-10 cm.

[0036] On the basis of embodiment 1, the structure of the stirring paddle 142 is further optimized in this embodiment to improve the stirring efficiency and prevent the accumulation of filter cake. The stirring paddle 142 in this embodiment is designed as a combination structure of the conical spiral belt 1421 and the inclined blade paddle 1422, which is as follows:

[0037] The pitch of the conical spiral belt 1421 part of the stirring paddle 142 is set to 5-10 cm. The conical spiral belt 1421 is spirally wrapped around the stirring shaft and extends upward from the bottom of the stirring shaft to form a conical structure. This design can make the stirring paddle 142 generate an upward lifting force when rotating, which can drive the filter cake at the bottom upward and increase the stirring range.

[0038] The inclined blade paddle 1422 part is composed of multiple blades and is radially distributed on the outside of the conical spiral belt 1421, and the included angle between each blade and the stirring shaft is 30-60 degrees. This design can increase the shear force of the stirring paddle 142 and effectively crush the filter cake.

[0039] The distance between the bottom of the stirring paddle 142 and the bottom of the filter cavity is set to 5-10 cm to ensure that the stirring paddle 142 does not touch the bottom of the filter cavity when working, thereby reducing wear and tear and ensuring that the stirring paddle 142 can fully stir the filter cake at the bottom.

[0040] The cooperation of the conical screw 1421 and the inclined blade paddle 1422 in this embodiment: the conical screw 1421 generates an upward lifting force when rotating, driving the filter cake at the bottom upward and increasing the stirring range. At the same time, the inclined angle of the blade of the inclined blade paddle 1422 is 30-60 degrees. This design can increase the shear force of the stirring paddle 142 and effectively break the filter cake. The combination of the two ensures that the filter cake is fully broken during lifting, improving the stirring efficiency. In addition, the bottom spacing is set: the bottom of the stirring paddle 142 maintains a distance of 5-10 centimeters from the bottom of the filter chamber, ensuring that the stirring paddle 142 does not touch the bottom of the filter chamber during operation, reducing wear, and at the same time ensuring that the stirring paddle 142 can fully stir the filter cake at the bottom, effectively avoiding filter cake accumulation.

[0041] In one embodiment, the inner wall of the filter chamber is provided with at least two annular guide rails, and the outer side of the vibration support is provided with sliding blocks matched with the annular guide rails.

[0042] In this embodiment, multiple annular guide rails are provided on the inner wall of the filter chamber, and sliding blocks matched with the annular guide rails are installed on the outer side of the vibration support to optimize the motion stability of the vibration mechanism 130. The annular guide rail is circular and arranged circumferentially along the inner wall of the filter chamber to guide the smooth movement of the vibration support. The cross-sectional shape of the guide rail can be rectangular, T-shaped or dovetail-shaped, and the specific shape is selected according to the design and movement requirements of the sliding block. The shape of the sliding block matches the cross-sectional shape of the annular guide rail, ensuring that it can smoothly slide in the guide rail. Preferably, the sliding block is made of polytetrafluoroethylene material, which has good self-lubricating and wear-resistant properties, reducing friction between the sliding block and the guide rail. The sliding block can be fixed on the outer side of the vibration support through fasteners to ensure firm connection.

[0043] After the vibration motor is started, the vibration support smoothly slides along the annular guide rail through the sliding block, driving the filter core 110 to vibrate. The vibration effect can also be optimized by adjusting the frequency of the vibration motor, ensuring that the vibration is evenly transmitted to the filter core 110 and improving the shedding effect of the filter cake.

[0044] In one embodiment, the surface of the filter core 110 is a concave-convex structure, and the convexities and concave grooves are uniformly distributed along the axial and circumferential directions of the filter core 110.

[0045] The surface of the filter core 110 is designed as a concave-convex structure to enhance the breaking effect of the filter cloth 120 on the filter cake when it expands. The specific structure is as follows:

[0046] The surface of the filter element 110 has uniformly distributed protrusions and grooves, forming a concave-convex structure. This structure increases the contact area and friction between the filter cloth 120 and the filter cake, enabling the filter cloth 120 to more effectively break the adhesion of the filter cake when it expands, improving the efficiency of filter cake shedding. In addition, the concave-convex structure of the filter element 110 surface can increase the support area of the filter cloth 120 during filtration, reducing the deformation of the filter cloth 120, thereby improving the filtration effect and the uniformity of the filter cake. The protrusions and grooves can be uniformly distributed along the axial and circumferential directions of the filter element 110, ensuring that a uniform concave-convex structure is formed on the entire surface of the filter element 110. This uniform distribution design enables the filter cloth 120 to act uniformly on the filter cake when it expands, avoiding the situation of incomplete shedding in some areas, and improving the efficiency of filter cake shedding. The protrusions can be designed in cylindrical, square, or other shapes, and the grooves are gaps matching the shape of the protrusions.

[0047] During filtration, the mud liquid is filtered through the micropores on the surface of the filter element 110, and the filter cake is formed on the surface of the filter element 110. The concave-convex structure of the filter element 110 surface increases the contact area and friction between the filter cloth 120 and the filter cake, helping to improve the filtration effect. During the mud unloading process, compressed air is introduced into the inside of the filter element 110, and the filter cloth 120 expands under the action of the compressed air, breaking the adhesion between the filter cake and the surface of the filter element 110, causing the filter cake to break and fall off. The concave-convex structure of the filter element 110 surface can further enhance the breaking force of the filter cloth 120 on the filter cake when it expands, improving the efficiency of filter cake shedding.

[0048] In one embodiment, a blocking structure is also included, which includes a baffle plate arranged on the spray path of the spray pipeline in the filter chamber, between the filter element 110 discharge pipe and the filter chamber cylinder wall; the baffle plate is an arc-shaped plate, one end of which is fixed on the inner wall of the filter chamber, and the other end extends to the outside of the filter element 110 discharge pipe.

[0049] In this embodiment, the automatic mud unloading and stirring structure is provided with a blocking structure to optimize the spraying effect of the spray pipeline. The blocking structure includes an arc-shaped baffle plate arranged on the spray path of the spray pipeline in the filter chamber, between the filter element 110 discharge pipe and the filter chamber cylinder wall. One end of the baffle plate is fixed on the inner wall of the filter chamber, and the other end extends to the outside of the filter element 110 discharge pipe, ensuring that the sprayed liquid can be effectively guided to the filter element 110 discharge pipe, avoiding the liquid being sprayed onto the filter chamber cylinder wall. The arc-shaped baffle plate is tightly attached to the inner wall of the filter chamber, and its extension part covers the outside of the filter element 110 discharge pipe, cooperating with the centrifugal nozzle of the spray pipeline to ensure that the sprayed liquid acts on the filter element 110 discharge pipe, effectively guiding the sprayed liquid to fall only on the filter element 110 discharge pipe, avoiding the liquid being sprayed onto the filter chamber cylinder wall, and improving the uniformity and efficiency of the spraying.

[0050] In one embodiment, the vibration motor is connected to the vibration bracket through an elastic connector, which can be a spring or a rubber pad.

[0051] In this embodiment, the vibration motor is connected to the vibration bracket through an elastic connector to optimize the stability and service life of the vibration mechanism 130. This connection method can effectively absorb the impact force generated during the operation of the vibration motor, reducing the direct impact on the vibration bracket and other components, thereby prolonging the service life of the equipment. At the same time, the flexibility provided by the elastic connector ensures that the vibration motor can deliver vibrations more smoothly, reducing shaking and deviation during vibration, and improving the uniformity of the vibration effect. Through this design, the vibration motor can more effectively transmit vibrations to the filter element 110, improving the efficiency of filter cake removal, and ensuring efficient filtration and desilting.

[0052] In one embodiment, the vibration bracket is in a ring structure, surrounding the upper end of the filter element 110, and the vibration bracket is evenly distributed around the filter element 110 through at least 3 connecting rods, the length of which can be adjusted.

[0053] The vibration bracket is installed at the upper end of the filter element 110 and connected to the filter element 110 through connecting rods. The length of the connecting rods can be adjusted to accommodate filter elements 110 of different heights. One end of the connecting rod is fixed to the vibration bracket, and the other end is connected to the upper end of the filter element 110, ensuring that vibrations are evenly transmitted to all parts of the filter element 110.

[0054] In this embodiment, the ring-shaped vibration bracket provides stable support, ensuring that vibrations are evenly transmitted to the filter element 110. The length of the connecting rods can be adjusted using nuts or other adjustment devices to accommodate filter elements 110 of different heights, enhancing the versatility and flexibility of the equipment.

[0055] In one embodiment, the filter chamber top is provided with an air inlet, which is connected to the air pump through a pipeline. The air inlet is located at the upper end of the filter element 110 and coincides with the central axis of the filter element 110.

[0056] In this embodiment, the filter chamber top is provided with an air inlet, which is connected to the air pump through a pipeline. The air inlet is located at the upper end of the filter element 110 and coincides with the central axis of the filter element 110. This design ensures that compressed air can enter the filter element 110 evenly, allowing the filter cloth 120 to more effectively break the adhesion of the filter cake when it expands, thereby improving the efficiency of filter cake removal. By positioning the air inlet directly above the filter element 110 and aligning it with the central axis of the filter element 110, the air flow path can be optimized, ensuring that air pressure is evenly distributed across the surface of the filter element 110, thereby improving the efficiency and effectiveness of the entire filtration and desilting process.

[0057] In one embodiment, the filter chamber bottom is provided with a sludge discharge port located directly below the stirring paddle 142, and the center axis of the sludge discharge port coincides with the center axis of the stirring paddle 142.

[0058] In this embodiment, the filter chamber bottom is provided with a sludge discharge port located directly below the stirring paddle 142, and the center axis of the sludge discharge port coincides with the center axis of the stirring paddle 142. This design ensures that the crushed filter cake can be smoothly discharged from the filter chamber, avoiding the accumulation of filter cake at the bottom, thereby improving the operating efficiency and reliability of the equipment. By precisely aligning the center axes of the sludge discharge port and the stirring paddle 142, the discharge path of the filter cake is optimized, ensuring that the filter cake can be directly discharged through the sludge discharge port after being crushed, reducing the residence time of the filter cake in the filter chamber, and further improving the efficiency of the entire filtration and sludge discharge process.

[0059] In one embodiment, the filter cloth 120 is detachably mounted outside the filter core 110 by a fixing device, which includes a buckle or a strap.

[0060] The technical features of the above-mentioned embodiments can be combined in any way. To make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described, but as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present disclosure.

[0061] The above-mentioned embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are all within the scope of the present application. Therefore, the scope of protection of the present application should be subject to the appended claims.

Claims

1. An automatic de-sludging mixing structure, characterized by, include: The filter element has a hollow cylindrical structure with micropores on its surface; A filter cloth is wrapped around the outside of the filter element, with a gap between it and the surface of the filter element. The filter cloth is made of a breathable material. A vibration mechanism, located on top of the filter element, includes a vibration motor and a vibration bracket, the vibration bracket being connected to the filter element via a connecting rod; The stirring mechanism, located at the bottom of the filter chamber, includes a stirring motor and a stirring paddle. The stirring paddle includes a conical spiral ribbon and an oblique blade. The conical spiral ribbon is spirally wrapped around the stirring shaft and extends upward from the bottom of the stirring shaft. The oblique blade consists of multiple blades that are radially distributed on the outside of the conical spiral ribbon. Each blade makes an acute angle with the stirring shaft.

2. The automatic de-sliming and mixing structure according to claim 1, wherein, The pitch of the conical spiral section of the agitator is 5-10 cm, the blade inclination angle of the oblique blade section is 30-60 degrees, and the distance between the bottom of the agitator and the bottom of the filter chamber is 5-10 cm.

3. The automatic de-sliming and mixing structure according to claim 1, wherein, The inner wall of the filter chamber is provided with at least two ring-shaped guide rails, and the outer side of the vibration bracket is provided with a slider that matches the ring-shaped guide rails.

4. The automatic de-sludging mixing structure according to claim 1, characterized in that, The surface of the filter element has a concave-convex structure, with protrusions and grooves evenly distributed along the axial and circumferential directions of the filter element.

5. The automatic de-sliming and mixing structure according to claim 1, wherein, It also includes a blocking structure, which includes a baffle plate. The baffle plate is disposed on the spray path of the spray pipe in the filter chamber and is located between the filter element pipe and the filter chamber wall. The baffle plate is an arc-shaped plate, with one end fixed to the inner wall of the filter chamber and the other end extending to the outside of the filter element pipe.

6. The automatic de-sludging mixing structure according to claim 1, wherein The vibration motor is connected to the vibration bracket via an elastic connector, which is a spring or a rubber pad.

7. The automatic de-sludging mixing structure according to claim 1, wherein The vibration support is a ring structure that surrounds the upper end of the filter element, and the vibration support is evenly distributed around the filter element by at least 3 connecting rods, the length of which is adjustable.

8. The automatic de-sludging mixing structure according to claim 1, wherein The filter chamber is provided with an air inlet at the top, which is connected to an air pump through a pipe. The air inlet is located at the upper end of the filter element and coincides with the central axis of the filter element.

9. The automatic de-sludging mixing structure according to claim 1, wherein The bottom of the filter chamber is provided with a mud discharge port, which is located directly below the agitator, and the central axis of the mud discharge port coincides with the central axis of the agitator.

10. The automatic de-sludging mixing structure according to claim 1, wherein The filter cloth is detachably installed on the outside of the filter element by a fixing device, which includes a buckle or a strap.

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