Sludge-water separation equipment and sludge-water separation methods

Abstract

This invention belongs to the field of underground engineering construction technology and discloses a mud-water separation device and method. The mud-water separation device includes a hopper and a drum. The hopper is used to fill mud. The drum includes a mud-water deflector and a central rotating body. The mud-water deflector is disposed on the central rotating body, which is equipped with a filter screen. The central rotating body has a filtration chamber for holding water passing through the filter screen. The filtration chamber has an outlet and a cleaning port. The filtration chamber has a self-cleaning state and a drainage state. When the filtration chamber is in the self-cleaning state, the cleaning port sprays high-pressure airflow onto the filter screen. When the filtration chamber is in the drainage state, the cleaning port stops spraying high-pressure airflow onto the filter screen, and the water passing through the filter screen enters the filtration chamber and is discharged from the outlet. The rotation of the central rotating body allows the filtration chamber to switch between the self-cleaning state and the drainage state. This mud-water separation device can perform filter screen self-cleaning while separating mud and water, ensuring the effectiveness of the mud-water separation.

Description

Technical Field

[0001] This invention relates to the field of underground engineering construction technology, and in particular to a mud-water separation device and a mud-water separation method. Background Technology

[0002] During the construction of underground projects, in order to control or prevent the seepage of groundwater and ensure the stability of the soil layer, the method of soil replacement is usually used to replace the soil of the foundation with clay with higher strength. After the clay solidifies, it will form a dense sealing layer, thereby achieving the purpose of waterproofing the foundation pit. The original soil replaced in the foundation pit will be dehydrated to meet the requirements of environmental sanitation and cleaning and transportation. The dehydrated soil will be loaded onto trucks and transported to the designated location.

[0003] Currently, construction sites often use filter press equipment to dewater mud or soil. The mud in the mud bin is squeezed by a pressure plate, forcing the mud through a filter screen to separate water and soil, thus achieving the dewatering effect. However, this method requires frequent addition of coagulant to the mud in the mud bin to prevent the filtered soil from clogging the filter screen and preventing filtration. At the same time, the filter press method often requires multiple filter press cycles, resulting in low output and slow speed, which cannot meet the needs of large-scale mud-water separation. Summary of the Invention

[0004] The purpose of this invention is to provide a mud-water separation device and a mud-water separation method that can perform filter screen self-cleaning while separating mud and water, so as to ensure the effectiveness of mud-water separation.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] Sludge-water separation equipment includes:

[0007] The silo is used to fill mud slurry;

[0008] The drum includes a mud-dispensing plate and a central rotating body. The mud-dispensing plate is disposed on the central rotating body, and a filter screen is disposed on the central rotating body. The central rotating body is rotatably disposed in the hopper. The rotation of the central rotating body can drive the mud-dispensing plate to agitate the mud, so that the mud is pressed against the filter screen.

[0009] The central rotating body has a filter chamber for containing water passing through the filter screen. The filter chamber is provided with a water outlet and a cleaning outlet. The filter chamber has a self-cleaning state and a drainage state. When the filter chamber is in the self-cleaning state, the cleaning outlet sprays high-pressure airflow onto the filter screen. When the filter chamber is in the drainage state, the cleaning outlet stops spraying high-pressure airflow onto the filter screen, and the water passing through the filter screen enters the filter chamber and is discharged from the water outlet. The rotation of the central rotating body can switch the filter chamber between the self-cleaning state and the drainage state.

[0010] Preferably, the central rotating body includes an inner cylinder and an outer cylinder, the outer cylinder is sleeved on the outside of the inner cylinder, the mud baffle is disposed on the outer cylinder, the inner cylinder and the outer cylinder enclose to form the filter cavity, the filter screen is disposed on the outer cylinder, and the outer cylinder has a flow hole.

[0011] Preferably, the outer cylinder includes a first shell layer and a second shell layer, the filter screen is sandwiched between the first shell layer and the second shell layer, both the first shell layer and the second shell layer are provided with flow holes, and the mud baffle is disposed on the first shell layer.

[0012] Preferably, the mud-water separation device further includes a driving component, and the drum further includes a rotating shaft, which is disposed on the central rotating body. The rotating shaft is rotatably coupled with the hopper, and the driving component is used to drive the rotating shaft to rotate.

[0013] Preferably, the mud-water separation device further includes an air intake assembly, which includes an air chamber and an air intake pipe connected to each other. The air chamber is disposed in the filter chamber, the cleaning port is opened on the air chamber, and the air intake pipe is used to deliver the high-pressure airflow into the air chamber.

[0014] Preferably, the central rotating body has a plurality of mutually spaced filter chambers, which are evenly arranged along the circumference of the central rotating body.

[0015] Preferably, the air intake assembly further includes an air intake ring, which is sleeved on the rotating shaft and rotates with the rotating shaft. The rotating shaft has a plurality of air intake ports evenly spaced along the circumference on its side wall. The rotating shaft has an air intake channel, and the plurality of air intake ports are connected to a plurality of air intake pipes one by one through the air intake channel.

[0016] The outer circumferential surface of the intake ring is provided with a first interface for introducing the high-pressure airflow; the inner circumferential surface of the intake ring is provided with an arc-shaped first confluence groove, the first interface is connected to the first confluence groove, and the rotation of the shaft can selectively connect a portion of the intake port to the first confluence groove.

[0017] Preferably, the mud-water separation device further includes a water outlet component, which includes a water outlet ring. The water outlet ring is sleeved on the rotating shaft and rotates with the rotating shaft. Multiple drain outlets are evenly spaced along the circumference on the side wall of the rotating shaft. The rotating shaft has a drainage channel, and the multiple drain outlets are connected to the multiple water outlets one by one through the drainage channel.

[0018] A second interface is provided on the outer circumferential surface of the water outlet ring, which is used to discharge water from the filter chamber; an arc-shaped second confluence groove is provided on the inner circumferential surface of the water outlet ring, and the second interface is connected to the second confluence groove. The rotation of the shaft can selectively connect some of the drain outlets to the second confluence groove.

[0019] The projections of the first and second manifolds onto the same plane along the first direction do not coincide.

[0020] Preferably, the angle between the tangent at any point on the central rotating body that connects to the mud-pulling plate and the mud-pulling plate at that point is less than 90 degrees.

[0021] The mud-water separation method, using the aforementioned mud-water separation equipment, includes the following steps:

[0022] S1. Load the mud into the silo;

[0023] S2. Rotate the central rotating body to put the filter chamber in the drainage state to separate the mud and water.

[0024] S3. Continue to rotate the central rotating body to put the filter chamber into the self-cleaning state and clean the dirt on the filter screen;

[0025] S4. Repeat steps S2 and S3 until water stops flowing from the outlet.

[0026] The beneficial effects of this invention are as follows:

[0027] The mud-water separation device provided by this invention has a central rotating body rotatably mounted in a hopper. Because the central rotating body is equipped with a mud-slurry agitator and a filter screen, the rotation of the central rotating body drives the mud-slurry agitator to stir the mud in the hopper, squeezing and pressing the mud against the filter screen of the central rotating body to achieve filtration and thus mud-water separation. Since the central rotating body has a filter chamber for holding water passing through the filter screen, and the filter chamber has a water outlet, when the filter chamber is in drainage mode, water passing through the filter screen enters the filter chamber and exits from the water outlet. When the filter chamber is in self-cleaning mode, the cleaning port sprays high-pressure airflow onto the filter screen to clean the accumulated mud on the filter screen, achieving self-cleaning of the filter screen. By rotating the central rotating body, the filter chamber can be switched between self-cleaning and drainage modes, achieving both mud-water separation and filter screen cleaning without the need for laborious disassembly and cleaning, ensuring the filtration and separation effect of this mud-water separation device.

[0028] Using this mud-water separation method, the mud can be dehydrated and the water in the mud can be discharged. By rotating the center, the filter chamber can be switched between self-cleaning and drainage states. This not only achieves mud-water separation but also allows for the cleaning of the filter screen without the need for laborious disassembly and cleaning, thus ensuring the filtration and separation effect of the mud-water separation device. Attached Figure Description

[0029] Figure 1 This is a cross-sectional view of the mud-water separation device provided in a specific embodiment of the present invention;

[0030] Figure 2 This is a cross-sectional view of the central rotating body provided in a specific embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the air chamber and air intake pipe provided in a specific embodiment of the present invention;

[0032] Figure 4 This is a schematic diagram of the internal structure of the central rotating body provided in a specific embodiment of the present invention;

[0033] Figure 5 This is a schematic diagram of the intake ring provided in a specific embodiment of the present invention;

[0034] Figure 6 This is a schematic diagram of the water outlet ring provided in a specific embodiment of the present invention;

[0035] Figure 7 This is a schematic diagram of the assembly of the central rotating body and the rotating shaft provided in a specific embodiment of the present invention.

[0036] In the picture:

[0037] 1-Hopper;

[0038] 2-Drum; 21-Mud Dispenser; 22-Central Rotating Body; 221-Inner Cylinder; 222-Outer Cylinder; 2221-First Shell Layer; 2222-Second Shell Layer; 23-Filter Chamber; 231-Outlet; 24-Rotating Shaft; 241-Air Inlet; 242-Air Inlet Channel; 2421-First Air Passage; 2422-Second Air Passage; 2423-Third Air Passage; 2424-Fourth Air Passage; 2425-Fifth Air Passage; 243-Drainage Outlet; 244-Drainage Channel; 2441-First Water Passage; 2442-Second Water Passage; 2443-Third Water Passage; 2444-Fourth Water Passage;

[0039] 3-Intake assembly; 31-Air chamber; 311-Cleaning port; 32-Intake pipe; 33-Intake ring; 331-First interface; 332-First manifold;

[0040] 4-Outlet ring; 41-Second interface; 42-Second manifold. Detailed Implementation

[0041] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0042] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0045] like Figures 1 to 4As shown, the present invention provides a mud-water separation device, which includes a hopper 1 and a drum 2. The drum 2 includes a mud-dispersing plate 21 and a central rotating body 22. The mud-dispersing plate 21 is disposed on the central rotating body 22, and a filter screen is disposed on the central rotating body 22. The central rotating body 22 is rotatably disposed in the hopper 1. The rotation of the central rotating body 22 can drive the mud-dispersing plate 21 to agitate the mud, so that the mud is pressed against the filter screen. The central rotating body 22 has a filter chamber 23 for containing water passing through the filter screen and filtering. The filter chamber 23 is provided with a water outlet 231 and a cleaning port 311. The filter chamber 23 has a self-cleaning state and a drainage state. When the filter chamber 23 is in the self-cleaning state, the cleaning port 311 sprays high-pressure airflow into the filter screen, and the water in the filter chamber 23 is discharged from the water outlet 231. When the filter chamber 23 is in the drainage state, the cleaning port 311 stops spraying high-pressure airflow into the filter screen, and the water passing through the filter screen enters the filter chamber 23. The rotation of the central rotating body 22 can switch the filter chamber 23 between the self-cleaning state and the drainage state. In this embodiment, the central rotating body 22 is rotatably disposed in the hopper 1. Since the central rotating body 22 is equipped with a mud-dispersing plate 21 and a filter screen, the rotation of the central rotating body 22 drives the mud-dispersing plate 21 to agitate the mud in the hopper 1, squeezing and pressing the mud against the filter screen of the central rotating body 22 to achieve filtration of the mud, thereby achieving the purpose of mud-water separation. Because the central rotating body 22 has a filter chamber 23, which is used to hold water passing through the filter screen, and the filter chamber 23 is provided with a water outlet 231, when the filter chamber 23... In the drainage state, water passing through the filter screen enters the filter chamber 23 and is discharged from the outlet 231. When the filter chamber 23 is in the self-cleaning state, the cleaning port 311 sprays high-pressure airflow onto the filter screen to clean the dirt accumulated on the filter screen, thus achieving self-cleaning of the filter screen. By rotating the central rotating body 22, the filter chamber 23 can be switched between the self-cleaning state and the drainage state, which can achieve mud-water separation and also clean the filter screen without the need for laborious disassembly and cleaning, ensuring the filtration and separation effect of the mud-water separation device. Specifically, the hopper 1 is a hollow cylindrical structure, the central rotating body 22 is a cylindrical structure, and the mud baffle 21 is set on the side wall of the central rotating body 22. When the central rotating body 22 rotates, it can drive the mud baffle 21 to stir the mud in the hopper 1. When the filter chamber 23 is in the drainage state, the cleaning port 311 will stop spraying high-pressure airflow onto the filter screen, and the water passing through the filter screen will enter the filter chamber 23 and be discharged from the outlet 231. When the filter chamber 23 is in the self-cleaning state, the outlet 231 will stop flowing water, and the cleaning port 311 will spray high-pressure airflow onto the filter screen to dislodge the mud accumulated on the filter screen, thereby achieving the purpose of cleaning the filter screen. The self-cleaning state and drainage state of the filter chamber 23 are achieved by the rotation of the central rotating body 22, which is convenient to operate.

[0046] Furthermore, such as Figure 2As shown, the central rotating body 22 includes an inner cylinder 221 and an outer cylinder 222. The outer cylinder 222 is sleeved on the outside of the inner cylinder 221. A mud-dispensing plate 21 is disposed on the outer cylinder 222. The inner cylinder 221 and the outer cylinder 222 enclose a filter cavity 23. A filter screen is disposed on the outer cylinder 222, and a flow hole is provided on the outer cylinder 222. In this embodiment, both the inner cylinder 221 and the outer cylinder 222 are cylindrical structures. The diameter of the outer cylinder 222 is larger than the diameter of the inner cylinder 221. The inner cylinder 221 is placed inside the outer cylinder 222. The space between the inner cylinder 221 and the outer cylinder 222 forms the filter cavity 23. The filter screen is disposed on the outer cylinder 222, and a flow hole is provided on the side wall of the outer cylinder 222. The mud can flow through the flow hole to the filter screen and be filtered. The water that passes through the filter screen will continue to flow into the filter cavity 23.

[0047] Specifically, such as Figure 2 As shown, the outer cylinder 222 includes a first shell layer 2221 and a second shell layer 2222. A filter screen is sandwiched between the first shell layer 2221 and the second shell layer 2222. Both the first shell layer 2221 and the second shell layer 2222 have flow holes. A mud baffle 21 is disposed on the first shell layer 2221. Specifically, the outer cylinder 222 has a double-layer structure, consisting of an outer first shell layer 2221 and an inner second shell layer 2222, which are connected by end plates. The filter screen is disposed between the first shell layer 2221 and the second shell layer 2222 and connected to the first shell layer 2221 and the second shell layer 2222 by radial fixing bolts. The first shell layer 2221 is composed of two symmetrical half-shells connected by locking bolts. After the filter screen is installed on the second shell layer 2222, one half-shell of the first shell layer 2221 is... Radial fixing bolts are installed on the second shell 2222. Then, the other half shell is connected to the already installed half shell by locking bolts and fixed to the second shell 2222 by radial fixing bolts, thereby installing the filter screen on the outer cylinder 222. It can be understood that both the first shell 2221 and the second shell 2222 are provided with flow holes. The mud can flow through the flow holes on the first shell 2221 to the filter screen for filtration. The water after filtration and separation will continue to flow through the flow holes on the second shell 2222 into the filter chamber 23.

[0048] Furthermore, such as Figure 1 As shown, the mud-water separation equipment also includes a drive component, and the drum 2 also includes a rotating shaft 24, which is mounted on the central rotating body 22. The rotating shaft 24 is rotatably engaged with the hopper 1, and the drive component is used to drive the rotating shaft 24 to rotate. In this embodiment, the rotating shaft 24 passes through the end face of the hopper 1 and is rotatably engaged with the hopper 1. The drive component is a motor, which is connected to the rotating shaft 24 and drives the rotating shaft 24 to rotate. The rotating shaft 24 is connected to the central rotating body 22, so the central rotating body 22 can rotate inside the hopper 1. Because a drive component is provided, there is no need for operators to manually rotate the rotating shaft 24, saving time and effort.

[0049] Specifically, such as Figure 2 and Figure 3 As shown, the mud-water separation device also includes an air intake assembly 3, which includes a connected air chamber 31 and an air intake pipe 32. The air chamber 31 is disposed in the filter chamber 23, and a cleaning port 311 is opened on the air chamber 31. The air intake pipe 32 is used to deliver high-pressure airflow into the air chamber 31. In this embodiment, the air chamber 31 is disposed in the filter chamber 23. The side of the air chamber 31 facing the outer cylinder 222 is arc-shaped and matches the shape of the second shell 2222. Multiple cleaning ports 311 are evenly opened on this side of the air chamber 31. The air intake pipe 32 is connected to an air pump, which can deliver high-pressure airflow into the air chamber 31. After the high-pressure airflow enters the air chamber 31, it will be ejected through multiple cleaning ports 311. Since the cleaning ports 311 face the outer cylinder 222, the high-pressure airflow will be sprayed onto the filter screen through the flow holes on the second shell 2222, thereby blowing out the mud accumulated on the filter screen after mud-water separation through the flow holes on the first shell 2221, thus cleaning the filter screen.

[0050] Specifically, such as Figure 2 As shown, the central rotating body 22 has multiple mutually isolated filter chambers 23, which are evenly arranged along the circumference of the central rotating body 22. In this embodiment, multiple filter chambers 23 are provided, and adjacent filter chambers 23 are separated by radial partitions. The filter chambers 23 are not interconnected and can independently realize the functions of drainage and filter cleaning. Specifically, the multiple filter chambers 23 are divided into two parts according to their working state at the same time. One part of the filter chambers 23 is in the drainage state, and the other part of the filter chambers 23 is in the self-cleaning state. As the central rotating body 22 rotates, the working states of these two parts of the filter chambers 23 will change to ensure that there are both drainage filter chambers 23 and self-cleaning filter chambers 23 at the same time. This enables the mud-water separation equipment to perform continuous mud-water separation operations and improves working efficiency.

[0051] Specifically, such as Figure 1 , Figure 5 and Figure 7As shown, the intake assembly 3 also includes an intake ring 33, which is sleeved on the rotating shaft 24 and rotates in cooperation with the rotating shaft 24. Multiple air inlets 241 are evenly spaced along the circumference on the side wall of the rotating shaft 24. The rotating shaft 24 has an intake channel 242, and the multiple air inlets 241 are connected to multiple intake pipes 32 one by one through the intake channel 242. A first interface 331 is provided on the outer circumferential surface of the intake ring 33 for introducing high-pressure airflow. An arc-shaped first confluence groove 332 is provided on the inner circumferential surface of the intake ring 33. The first interface 331 is connected to the first confluence groove 332. Rotation of the rotating shaft 24 can selectively connect some of the air inlets 241 to the first confluence groove 332. In this embodiment, the intake ring 33 is a circular ring structure. An air pump is externally connected to the first interface 331 on the outer circumference of the intake ring 33, and the intake ring 33 remains fixed. The intake ring 33 is sleeved on the rotating shaft 24, which can rotate relative to the intake ring 33. Multiple air inlets 241 are evenly spaced along the circumference on the side wall of the rotating shaft 24. Multiple air intake channels 242 are located inside the rotating shaft 24. Each air inlet 241 is connected to a corresponding air intake channel 242, and each air intake channel 242 is connected to a corresponding air intake pipe 32. It can be understood that each filter chamber 23 has an air chamber 31 and an air intake pipe 32. The air intake channels 242 and air inlets 241 correspond one-to-one with the filter chamber 23, meaning each filter chamber 23 has a separate air intake channel 242 and air inlet 241. An arc-shaped first confluence groove 332 is provided circumferentially on the inner circumferential surface of ring 33. The central angle of the first confluence groove 332 is less than 360 degrees. The intake ring 33 is installed at the intake port 241 on the rotating shaft 24. The first interface 331 extends radially and communicates with the first confluence groove 332. Therefore, the high-pressure airflow can enter from the first interface 331 and enter the intake pipe 32 in sequence through the first confluence groove 332, the intake port 241 and the intake channel 242. Since the first confluence groove 332 is an arc with a central angle of less than 360 degrees, the first confluence groove 332 cannot be connected to all the intake ports 241 at the same time. That is, the high-pressure airflow can only enter part of the filter chamber 23 through the intake port 241 connected to the first confluence groove 332 in sequence through the intake channel 242 and the intake pipe 32 at a certain time. Specifically, the intake passage 242 consists of a first air passage 2421, a second air passage 2422, a third air passage 2423, a fourth air passage 2424, and a fifth air passage 2425 connected vertically in sequence, with the fifth air passage 2425 connected to the intake pipe 32.

[0052] Specifically, such as Figure 1 , Figure 5 and Figure 7As shown, the mud-water separation device also includes a water outlet assembly, which includes a water outlet ring 4. The water outlet ring 4 is sleeved on the rotating shaft 24 and rotates in cooperation with the rotating shaft 24. Multiple drain outlets 243 are evenly spaced along the circumference on the side wall of the rotating shaft 24. The rotating shaft 24 has a drainage channel 244. The multiple drain outlets 243 are connected to multiple water outlets 231 one by one through the drainage channel 244. A second interface 41 is opened on the outer circumferential surface of the water outlet ring 4. The second interface 41 is used to discharge water from the filter chamber 23. An arc-shaped second confluence channel 42 is opened along the circumferential surface of the water outlet ring 4. The second interface 41 is connected to the second confluence channel 42. The rotation of the rotating shaft 24 can selectively connect some of the drain outlets 243 to the second confluence channel 42. The projections of the first confluence channel 332 and the second confluence channel 42 on the same plane along the first direction do not coincide. In this embodiment, the water outlet ring 4 is a circular ring structure, sleeved on the rotating shaft 24 and kept fixed. Both the water outlet ring 4 and the air inlet ring 33 have sliding friction with the rotating shaft 24. Rubber sealing rings are provided between the water outlet ring 4, the air inlet ring 33, and the rotating shaft 24 to prevent water or high-pressure gas leakage. The rotating shaft 24 can rotate relative to the water outlet ring 4. Multiple drain ports 243 are circumferentially opened on the side wall of the rotating shaft 24, and multiple drainage channels 244 are located inside the rotating shaft 24. The multiple drain ports 243 and multiple drainage channels 244 are connected one-to-one, and the multiple drainage channels 244 are connected one-to-one with multiple water outlets 231. It can be understood that each filter chamber 23 has a water outlet 231, and the drain ports 243 and drainage channels 244 correspond one-to-one with the filter chamber 23. Each filter chamber 23 has a separate outlet 231, drainage channel 244, and drain outlet 243; an arc-shaped second confluence groove 42 is provided on the inner circumferential surface of the outlet ring 4. The outlet ring 4 is installed at the drain outlet 243 position on the rotating shaft 24. The second interface 41 extends radially and communicates with the second confluence groove 42. Therefore, the water after mud-water separation can be discharged from the outlet 231 through the drainage channel 244, drain outlet 243, second confluence groove 42, and second interface 41 in sequence.Specifically, the mud-water separation device has eight filter chambers 23, and eight air inlets 241 and eight drain outlets 243 are respectively provided on the rotating shaft 24. The eight filter chambers 23 are configured such that at any given time, three filter chambers 23 are in a self-cleaning state and five filter chambers 23 are in a draining state. The state switching of the filter chambers 23 is achieved by the rotation of the rotating shaft 24. When the drain outlet 243 on the rotating shaft 24 rotates to connect with the second confluence groove 42 on the water outlet ring 4, the filter chamber 23 connected to this drain outlet 243... 3. In the drainage state, the separated water is discharged; when the air inlet 241 on the rotating shaft 24 rotates to connect with the first confluence groove 332 on the air inlet ring 33, the filter chamber 23 connected by this air inlet 241 is in the self-cleaning state, and the filter screen in the filter chamber 23 is cleaned; the rotation of the rotating shaft 24 realizes the switching between the drainage state and the self-cleaning state of the filter chamber 23, and this cycle repeats, always maintaining that at any given time, three filter chambers 23 are in the self-cleaning state and five filter chambers 23 are in the drainage state. Since the projections of the first confluence groove 332 and the second confluence groove 42 on the same plane along the first direction do not coincide, each filter chamber 23 can only be in one working state at a certain time, and cannot simultaneously drain water and clean the filter screen with air jets, thus ensuring the effect of mud-water separation and the cleaning effect of the filter screen. Specifically, the drainage channel 244 consists of a first waterway 2441, a second waterway 2442, a third waterway 2443, and a fourth waterway 2444 connected vertically in sequence, with the fourth waterway 2444 connected to the outlet 231.

[0053] Furthermore, such as Figure 2 As shown, the angle between the tangent at any point on the central rotating body 22 where it connects to the mud baffle 21 and the mud baffle 21 at that point is less than 90 degrees. Specifically, the mud baffle 21 is not radially arranged on the central rotating body 22; the angle between the tangent at the point on the central rotating body 22 where it connects to the mud baffle 21 and the surface of the mud baffle 21 is less than 90 degrees. This allows the mud to remain between the mud baffle 21 and the central rotating body 22 and be squeezed by the mud baffle 21 when it agitates the mud, thereby achieving better filtration and separation effects. In another embodiment, the angle between the surface of the mud baffle 21 and the axis of the central rotating body 22 is also less than 90 degrees, which ensures that the mud is squeezed while also reducing the accumulation of mud on the central rotating body 22 at that point.

[0054] This embodiment also provides a mud-water separation method, using the above-mentioned mud-water separation equipment, including the following steps:

[0055] S1. Load mud into silo 1.

[0056] S2. Rotate the central rotating body 22 to put the filter chamber 23 in the drainage state, thereby separating the mud and water. In this embodiment, the central rotating body 22 has eight filter chambers 23. The operator starts the drive unit, which drives the central rotating body 22 to rotate through the rotating shaft 24, so that five of the filter chambers 23 are in the drainage state, and the other three filter chambers 23 are in the self-cleaning state. The filter chambers 23 in the drainage state will filter the mud and discharge the filtered water, thereby achieving the purpose of mud-water separation.

[0057] S3. Continue rotating the central rotating body 22 to put the filter chamber 23 into a self-cleaning state and clean the mud on the filter screen. In this embodiment, the operator continues to rotate the central rotating body 22, and the filter chamber 23 that was originally in the drainage state is switched to the self-cleaning state, while the filter chamber 23 that was originally in the self-cleaning state is switched to the drainage state. There are always five filter chambers 23 in the drainage state and three filter chambers 23 in the self-cleaning state. The cleaning port 311 in the filter chamber 23 in the self-cleaning state can spray high-pressure airflow onto the filter screen corresponding to the filter chamber 23, thereby cleaning the mud accumulated on the filter screen after mud-water separation. By continuously rotating the central rotating body 22, the operator makes each filter chamber 23 switch between the drainage state and the self-cleaning state, so that the mud-water separation equipment can perform automatic cleaning while performing continuous mud-water separation operations, thereby improving the mud-water separation efficiency and ensuring the mud-water separation effect.

[0058] S4. Repeat steps S2 and S3 until water stops flowing from outlet 231. In this embodiment, the drive unit continuously drives the drum 2 to rotate, and the outlet 231 discharges the separated water. When the outlet 231 stops discharging water, the slurry in the silo 1 is dewatered. It can be understood that by continuously rotating the drum 2, the slurry separation equipment can perform continuous slurry separation operations without the need to stop the machine to clean the filter screen, saving time and effort.

[0059] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A mud-water separation device, characterized in that, include: A silo (1) is used to fill mud slurry; The drum (2) includes a mud-dispensing plate (21) and a central rotating body (22). The mud-dispensing plate (21) is disposed on the central rotating body (22), and a filter screen is disposed on the central rotating body (22). The central rotating body (22) is rotatably disposed in the hopper (1). The rotation of the central rotating body (22) can drive the mud-dispensing plate (21) to stir the mud so that the mud is pressed against the filter screen. The central rotating body (22) has a filter chamber (23) for containing water passing through the filter screen. The filter chamber (23) is provided with a water outlet (231) and a cleaning port (311). The filter chamber (23) has a self-cleaning state and a drainage state. When the filter chamber (23) is in the self-cleaning state, the cleaning port (311) sprays high-pressure airflow into the filter screen. When the filter chamber (23) is in the drainage state, the cleaning port (311) stops spraying the high-pressure airflow into the filter screen, and the water passing through the filter screen enters the filter chamber (23) and is discharged from the water outlet (231). The rotation of the central rotating body (22) can switch the filter chamber (23) between the self-cleaning state and the drainage state. The mud-water separation device also includes a driving component, and the drum (2) also includes a rotating shaft (24). The rotating shaft (24) is disposed on the central rotating body (22). The rotating shaft (24) is rotatably engaged with the hopper (1). The driving component is used to drive the rotating shaft (24) to rotate. The mud-water separation device also includes an air intake assembly (3), which includes a connected air chamber (31) and an air intake pipe (32). The air chamber (31) is located in the filter chamber (23), and the cleaning port (311) is opened on the air chamber (31). The air intake pipe (32) is used to deliver the high-pressure airflow into the air chamber (31). The central rotating body (22) has a plurality of mutually spaced filter chambers (23), and the plurality of filter chambers (23) are evenly arranged along the circumference of the central rotating body (22); The air intake assembly (3) further includes an air intake ring (33), which is sleeved on the rotating shaft (24) and rotates in cooperation with the rotating shaft (24). The rotating shaft (24) has multiple air intake ports (241) evenly spaced along the circumference on its side wall. The rotating shaft (24) has an air intake channel (242), and the multiple air intake ports (241) are connected to the multiple air intake pipes (32) one by one through the air intake channel (242). The outer circumferential surface of the air intake ring (33) is provided with a first interface (331) for introducing the high-pressure airflow; the inner circumferential surface of the air intake ring (33) is provided with an arc-shaped first confluence groove (332) along the circumferential direction, the first interface (331) is connected to the first confluence groove (332), and the rotation of the rotating shaft (24) can selectively connect a portion of the air intake (241) to the first confluence groove (332); The mud-water separation device also includes a water outlet component, which includes a water outlet ring (4). The water outlet ring (4) is sleeved on the rotating shaft (24) and rotates in cooperation with the rotating shaft (24). Multiple drain outlets (243) are evenly spaced along the circumference on the side wall of the rotating shaft (24). The rotating shaft (24) has a drainage channel (244). The multiple drain outlets (243) are connected to the multiple water outlets (231) one by one through the drainage channel (244). The water outlet ring (4) has a second interface (41) on its outer circumferential surface, which is used to discharge water from the filter chamber (23); the water outlet ring (4) has an arc-shaped second confluence groove (42) on its inner circumferential surface, which is connected to the second confluence groove (42); the rotation of the shaft (24) can selectively connect some of the drain outlets (243) to the second confluence groove (42); The projections of the first manifold (332) and the second manifold (42) onto the same plane along the first direction do not coincide.

2. The mud-water separation equipment according to claim 1, characterized in that, The central rotating body (22) includes an inner cylinder (221) and an outer cylinder (222). The outer cylinder (222) is sleeved on the outside of the inner cylinder (221). The mud baffle (21) is set on the outer cylinder (222). The inner cylinder (221) and the outer cylinder (222) enclose the filter chamber (23). The filter screen is set on the outer cylinder (222). The outer cylinder (222) has a flow hole.

3. The mud-water separation equipment according to claim 2, characterized in that, The outer cylinder (222) includes a first shell layer (2221) and a second shell layer (2222). The filter screen is sandwiched between the first shell layer (2221) and the second shell layer (2222). Both the first shell layer (2221) and the second shell layer (2222) have flow holes. The mud baffle (21) is disposed on the first shell layer (2221).

4. The mud-water separation equipment according to claim 1, characterized in that, The angle between the tangent at any point on the central rotating body (22) that connects to the mud slurry deflector (21) and the mud slurry deflector (21) at that point is less than 90 degrees.

5. A mud-water separation method, characterized in that, Using the mud-water separation equipment as described in any one of claims 1-4 includes the following steps: S1. Load the mud into the silo (1); S2. Rotate the central rotating body (22) to put the filter chamber (23) in the drainage state and separate the mud and water in the mud. S3. Continue to rotate the central rotating body (22) to put the filter chamber (23) into the self-cleaning state and clean the dirt on the filter screen; S4. Repeat steps S2 and S3 until water stops flowing from the outlet (231).

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