Mud-water separation cyclone

Abstract

The utility model relates to the technical field of sludge treatment, in particular to a mud-water separation cyclone, which comprises a shell, the top of the rotational flow chamber body is located in the shell, and a cavity is formed between the section, in the shell, of the rotational flow chamber body and the shell. The rotational flow chamber body comprises a cylinder and a lower conical barrel, the cylinder and the lower conical barrel are internally communicated with each other to form a rotational flow cavity, an underflow opening is formed in the bottom of the lower conical barrel, the underflow opening is formed in the outer portion of the shell, and a pressure switch is arranged at the underflow opening; the rotational flow chamber body is provided with a central pipe with two open ends, the central pipe is movably arranged up and down relative to the rotational flow chamber body, the central pipe comprises a circular pipe section and a protruding section which are arranged from top to bottom, and the upper end of the circular pipe section penetrates out of the rotational flow chamber body to be communicated with the cavity; the driving device comprises a lifting driving part and a suspender, the suspender is fixedly connected with the center pipe, and the lifting driving part drives the suspender to move up and down. The position of the center pipe of the mud-water separation cyclone can be flexibly adjusted, and the technical problem that the separation precision of the cyclone cannot be flexibly adjusted is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge treatment, in particular to a mud-water separation cyclone. Background Technique

[0002] Engineering activities such as subway shield construction, tunnel excavation, and infrastructure construction will generate a large amount of muck. Due to factors such as limited site space in the construction section, it is impossible to directly process the muck at the construction site. The muck needs to be transported to a disposal site for treatment. Generally, the muck is poured into a disposal pond in the disposal site and a large amount of water (other flocculants and other chemicals can also be added if necessary) is added for stirring. The muck is screened by a separation device. For larger-grained sand and gravel, resource recovery and utilization can be carried out, while the slurry is further dehydrated by a mud-water separation device.

[0003] Among them, the cyclone is a commonly used slurry dehydration device, which is suitable for slurries of different properties (including high-viscosity slurries), can handle a large amount of slurry. Its principle is to separate the water and solid particles in the mixed liquid by the centrifugal force generated by high-speed rotation. The coarse particles move spirally downward along the wall of the device under the action of centrifugal force and gravity and are discharged from the underflow port; while the fine particles and most of the liquid form an inner swirl flow and are discharged from the central pipe. However, the position of the central pipe of the existing cyclone is fixed, resulting in the inability to flexibly adjust the separation accuracy of the cyclone, and the dehydration efficiency of the existing cyclone is low. Therefore, a new technical solution is needed to solve the above technical problems. Content of the Utility Model

[0004] Aiming at the problems raised in the background technique, the purpose of the utility model is to provide a mud-water separation cyclone, in which the position of the central pipe can be flexibly adjusted, solving the technical problem that the separation accuracy of the existing cyclone cannot be flexibly adjusted.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A mud-water separation cyclone, comprising:

[0007] A housing;

[0008] A cyclone chamber body, the top of the cyclone chamber body is located inside the housing, and a cavity is formed between the section of the cyclone chamber body inside the housing and the housing;

[0009] The cyclone chamber body includes a cylindrical barrel and a lower conical barrel. The lower end of the cylindrical barrel is connected to the lower conical barrel. The diameter of the upper end of the lower conical barrel is larger than the diameter of the lower end of the lower conical barrel. The inside of the cylindrical barrel and the lower conical barrel are interconnected to form a cyclone cavity. A bottom flow port is provided at the bottom of the lower conical barrel. The bottom flow port is arranged outside the housing, and a pressure switch is arranged at the bottom flow port;

[0010] The cyclone chamber body is provided with a central pipe with openings at both ends. The central pipe is arranged to be vertically movable relative to the cyclone chamber body. The central pipe includes a circular pipe section and a protruding section arranged from top to bottom. The upper end of the circular pipe section penetrates out of the cyclone chamber body to communicate with the cavity. The diameter of the middle part of the protruding section is larger than the diameter of the circular pipe section and the diameter of the bottom of the protruding section.

[0011] A driving device, which includes a lifting driving part and a suspension rod. The suspension rod is fixedly connected to the central pipe, and the output end of the lifting driving part is in transmission connection with the suspension rod to drive the suspension rod to rise and fall.

[0012] A slurry inlet pipe, the slurry outlet end of which sequentially penetrates through the outer shell and the cyclone chamber body to input slurry into the cyclone cavity.

[0013] A water outlet pipeline, which is communicated with the cavity to discharge the water in the cavity.

[0014] Optionally, the pressure switch includes an opening baffle, a spring and a support plate. The lower end of the suspension rod penetrates out of the central pipe and passes through the opening baffle, so that the opening baffle is slidably sleeved on the suspension rod. The lower end of the suspension rod is fixedly connected to the support plate. The spring is sleeved on the suspension rod, and the lower end of the spring is fixedly connected to the support plate, and the upper end of the spring abuts against the bottom surface of the opening baffle.

[0015] Optionally, a flow guide cover is sleeved on the outer peripheral wall of the circular pipe section. The flow guide cover is conical, and the apex of the cone of the flow guide cover is arranged upward. The flow guide cover is placed in the cyclone cavity, and there is a gap between the flow guide cover and the output end of the slurry inlet pipe in the horizontal direction.

[0016] Optionally, the cyclone chamber body further includes an upper conical cylinder. The upper end of the cylindrical cylinder is connected to the upper conical cylinder. The diameter of the upper end of the upper conical cylinder is smaller than the diameter of the lower end of the upper conical cylinder. The upper conical cylinder is communicated with the cyclone cavity. The upper end of the circular pipe section penetrates out of the upper conical cylinder to communicate with the cavity.

[0017] Optionally, the upper conical cylinder is enclosed by a first screen, and the cylindrical cylinder is enclosed by a second screen. A partition is connected between the outer peripheral wall of the upper conical cylinder and the inner side wall of the cavity. The partition divides the cavity into an upper cavity and a lower cavity. The water outlet pipeline includes a first water outlet pipe and a second water outlet pipe. The input end of the first water outlet pipe is communicated with the upper cavity, and the input end of the second water outlet pipe is communicated with the lower cavity.

[0018] Optionally, a positive and negative pressure generating device is further included. The positive and negative pressure generating device is communicated with the upper cavity and the lower cavity to provide positive pressure and / or negative pressure for the upper cavity and the lower cavity.

[0019] Optionally, the water outlet pipeline further includes a third water outlet pipe. The input end of the third water outlet pipe is communicated with the lower cavity, the output end of the third water outlet pipe is communicated with the second water outlet pipe, and the position where the third water outlet pipe is communicated with the lower cavity is higher than the position where the second water outlet pipe is communicated with the lower cavity.

[0020] Optionally, the first water outlet pipe is arranged on the upper end face of the housing and extends into the housing to be communicated with the upper cavity, and the number of the first water outlet pipes is multiple; the water outlet pipeline further includes a fourth water outlet pipe, and the output ends of the multiple first water outlet pipes are communicated with the fourth water outlet pipe; the positive and negative pressure generating device is communicated with the fourth water outlet pipe to provide positive pressure for the fourth water outlet pipe.

[0021] Optionally, the number of the first water outlet pipes is four. Two first water outlet pipes form a group, and each group of the first water outlet pipes is arranged side by side and located on the same side of the central pipe; a first inclined plate and a second inclined plate are correspondingly arranged for each group of the first water outlet pipes. The first inclined plate and the second inclined plate are arranged in the upper cavity. The upper end of the first inclined plate is connected to the upper wall of the upper cavity and is located between the two first water outlet pipes; the lower end of the first inclined plate is inclined downward in the direction of the central pipe, and the lower end of the first inclined plate horizontally exceeds the first water outlet pipe close to the central pipe; the upper end of the second inclined plate is connected to the lower end of the first inclined plate, the lower end of the second inclined plate is inclined downward in the direction away from the central pipe, and the lower end of the second inclined plate horizontally exceeds the first water outlet pipe far from the central pipe.

[0022] Optionally, the water outlet pipeline further includes a flowmeter for monitoring the flow rate in the water outlet pipeline.

[0023] Compared with the prior art, the embodiments of the present utility model have the following beneficial effects:

[0024] 1. The protruding section is arranged on the central pipe of the mud-water separation cyclone of the present utility model. The central pipe can move up and down relative to the cyclone chamber body during operation under the drive of the driving device. By changing the position of the protruding section of the central pipe and changing the distance between the lower end opening of the central pipe and the underflow port, the rotation speed and fluid distribution of the fluid in the cyclone cavity are enhanced. By changing the rotation radius, rotation speed and angle of the fluid rotation, the separation accuracy of the mud-water separation cyclone can be flexibly adjusted, and the separation effect of the mud-water separation cyclone is optimized.

[0025] 2. The upper conical cylinder of the mud-water separation cyclone of the present utility model is enclosed by a first screen, and the cylindrical cylinder is enclosed by a second screen, so that dehydration can also be carried out at the first screen and the second screen of the mud-water separation cyclone, increasing the dehydration outlet and effectively improving the dehydration efficiency. At the same time, the pressure difference between the cyclone chamber and the outer shell chamber is controlled by a positive and negative pressure generating device, further improving the dehydration efficiency of the mud-water separation cyclone of the present utility model.

[0026] 3. The water separated by the mud-water separation cyclone of the present utility model can be reconnected to the consumption pool through the water outlet pipe for reuse, effectively improving the utilization rate of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the mud-water separation cyclone of an embodiment of the present utility model;

[0028] Figure 2 is a partial structural schematic diagram of the cyclone chamber body and the driving device of the mud-water separation cyclone of an embodiment of the present utility model (the underflow port is in an open state);

[0029] Figure 3 is Figure 2 an enlarged schematic diagram of part A in

[0030] Figure 4 is a connection schematic diagram of the central pipe, the connecting rod and the suspension rod of the mud-water separation cyclone of an embodiment of the present utility model;

[0031] Figure 5 is a partial structural schematic diagram of the central pipe of the mud-water separation cyclone of an embodiment of the present utility model;

[0032] Figure 6 is a structural schematic diagram of the flow guide cover of the mud-water separation cyclone of an embodiment of the present utility model;

[0033] Figure 7 is a structural schematic diagram of the upper conical cylinder and the cylindrical cylinder of the mud-water separation cyclone of an embodiment of the present utility model;

[0034] Figure 8 is a schematic diagram of the water outlet pipeline of the mud-water separation cyclone of an embodiment of the present utility model.

[0035] Wherein: housing 1, cavity 11, upper cavity 111, lower cavity 112, partition 12, first inclined plate 13, second inclined plate 14, swirl chamber body 2, cylindrical barrel 21, second screen 211, lower conical barrel 22, underflow port 221, swirl cavity 23, central pipe 24, circular pipe section 241, protruding section 242, flow guide cover 243, annular plate 2431, pressure switch 25, opening baffle 251, spring 252, support plate 253, upper conical barrel 26, first screen 261, driving device 3, lifting driving part 31, driving motor 311, lead screw 312, sleeve 313, suspension rod 32, connecting rod 33, slurry inlet pipe 4, water outlet pipeline 5, first water outlet pipe 51, second water outlet pipe 52, third water outlet pipe 53, fourth water outlet pipe 54, gate valve 55, flowmeter 56, positive and negative pressure generating device 6, support frame 7. Detailed implementation manners

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0037] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0038] In the present invention, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0039] In addition, in the present utility model, descriptions such as "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0040] Please refer to Figures 1 to 3 , to solve the above technical problems, the present utility model proposes a mud-water separation hydrocyclone, comprising: a housing 1; a cyclone chamber body 2, the top of the cyclone chamber body 2 is located within the housing 1, and a cavity 11 is formed between the section of the cyclone chamber body 2 within the housing 1 and the housing 1; the cyclone chamber body 2 includes a cylindrical barrel 21 and a lower conical barrel 22, the lower end of the cylindrical barrel 21 is connected to the lower conical barrel 22, the upper end diameter of the lower conical barrel 22 is greater than the lower end diameter of the lower conical barrel 22, the inside of the cylindrical barrel 21 and the lower conical barrel 22 communicate with each other to form a cyclone cavity 23, a bottom flow port 221 is provided at the bottom of the lower conical barrel 22, the bottom flow port 221 is arranged outside the housing 1, and a pressure switch 25 is provided at the bottom flow port 221; in a specific optional embodiment, such as Figure 1 shown, the cylindrical barrel 21 is arranged inside the housing 1, and the lower conical barrel 22 is arranged on the lower surface of the housing 1. The cyclone chamber body 2 is provided with a central pipe 24 with openings at both ends, the central pipe 24 is arranged to move up and down relative to the cyclone chamber body 2, the central pipe 24 includes a circular pipe section 241 and a protruding section 242 arranged from top to bottom, the upper end of the circular pipe section 241 penetrates out of the cyclone chamber body 2 to communicate with the cavity 11; the diameter of the middle part of the protruding section 242 is greater than the diameter of the circular pipe section 241 and the diameter of the bottom of the protruding section 242; specifically, such as Figure 1As shown, the diameter of the protruding section 242 increases first and then decreases from top to bottom, and its cross-sectional shape in the height direction can be set to a broken line shape or a bracket shape, which helps to guide the fluid to form a stronger vortex at the bottom of the central tube 24, and push the solid particles to the inner wall of the vortex chamber 23. The lower half of the protruding section 242 can block a certain amount of fine particles from entering the central tube 24, thereby optimizing the separation performance. Optionally, the diameter of the lower end opening of the protruding section 242 is equal to the diameter of the circular tube section 241. The driving device 3 includes a lifting driving part 31 and a suspension rod 32, the suspension rod 32 is fixedly connected to the central tube 24, and the output end of the lifting driving part 31 is transmission-connected to the suspension rod 32 to drive the suspension rod 32 to rise and fall; a specific optional embodiment, such as Figure 2 As shown, the lifting drive unit 31 includes a driving motor 311 and a screw rod 312. The driving motor 311 is arranged at the top of the housing 1 to drive the screw rod 312 to rotate; the screw rod 312 vertically passes through the housing 1 and is arranged in the cavity 11, and the axis of the screw rod 312 coincides with the axis of the swirl chamber 23; the screw rod 312 is placed in the cavity 11 at one end and is threadedly connected to the sleeve 313, and the sleeve 313 is fixedly connected to the suspension rod 32 at one end away from the screw rod 312 in the height direction, and the suspension rod 32 is fixedly connected to the center tube 24; so that when the driving motor 311 drives the screw rod 312 to rotate, the screw rod 312 can drive the sleeve 313 to perform linear motion along the axial direction of the screw rod 312. In other embodiments, the lifting drive unit 31 can also be a driving structure such as a hydraulic cylinder or a cylinder. A slurry inlet pipe 4, the slurry outlet end of which passes through the outer shell 1 and the cyclone chamber body 2 in sequence to input slurry into the cyclone cavity 23; a water outlet pipeline 5, the water outlet pipeline 5 is connected to the cavity 11 to discharge water in the cavity 11.

[0041] The working principle of the mud-water separation cyclone of the utility model is: the mud is pumped tangentially from the slurry inlet pipe 4 into the cyclone chamber 23 of the mud-water separation cyclone at a certain pressure, a high-speed rotating flow field is generated in the cyclone chamber 23, and the centrifugal force generated by the high-speed rotation is used to separate the water and solid particles in the mud. The coarse particles move downward along the inner wall of the cyclone chamber 23 under the action of centrifugal force and gravity, and are discharged from the bottom flow port 221; while the fine particles and most of the water form an internal vortex, which is discharged from the central pipe 24 of the mud-water separation cyclone to the cavity 11 and discharged from the water outlet pipe 5, thereby realizing the dehydration of the mud.

[0042] The hydrocyclone for mud-water separation of the present utility model sets the central pipe 24 to include a circular pipe section 241 arranged from top to bottom and a protruding section 242. The middle pipe diameter of the protruding section 242 is larger than the pipe diameters of the circular pipe section 241 and the bottom of the protruding section 242. By setting the suspension rod 32 to be fixedly connected to the central pipe 24, the driving device 3 drives the suspension rod 32 to rise and fall, so that the central pipe 24 moves up and down relative to the cyclone chamber body 2. By changing the position of the protruding section 242 of the central pipe 24, the effect of fluid flow in the swirl chamber 23 is enhanced, the rotation radius, rotation speed and angle of the fluid are changed, and the swirl effect is optimized; by changing the distance between the lower end opening of the central pipe 24 and the underflow port 221, the rotation intensity, rotation speed and fluid distribution of the fluid inside the hydrocyclone for mud-water separation are affected, the internal flow field structure of the hydrocyclone for mud-water separation is changed, and the residence time and movement trajectory of particles in the hydrocyclone for mud-water separation are affected. Thus, the separation accuracy of the hydrocyclone for mud-water separation can be flexibly adjusted, the concentration of the overflow of the central pipe 24 and the water outlet speed of the central pipe 24 can be adjusted, so that the hydrocyclone for mud-water separation can achieve the optimal separation effect under different working conditions (such as treating mixtures with different densities, different flow rates and pressures, etc.).

[0043] It should be noted that when the internal pressure of the hydrocyclone for mud-water separation does not reach the preset opening pressure, the pressure switch 25 seals the underflow port 221. When the internal pressure of the hydrocyclone for mud-water separation reaches or exceeds the preset opening pressure, the pressure switch 25 opens, enabling the underflow port 221 to discharge mud outward. Further, a gate valve 55 is provided on the water outlet pipeline 5. When the hydrocyclone for mud-water separation is just started, the gate valve 55 is closed and the pressure switch 25 seals the underflow port 221, so that the inside of the hydrocyclone for mud-water separation can be quickly filled, which helps to quickly generate swirl.

[0044] Further, the outer shell 1 is fixed on the support frame 7. The support frame 7 is used to fix the hydrocyclone for mud-water separation, so that a sludge storage tank can be arranged below the underflow port 221 of the lower conical cylinder 22 of the hydrocyclone for mud-water separation to receive the slurry discharged from the underflow port 221.

[0045] Further, by continuously laying pipelines, the water outlet pipeline 5 can be connected to a digestion pond, so that the separated water can be reused, effectively improving the utilization rate of water resources.

[0046] Refer to Figure 2 and Figure 3, Further explanation shows that the pressure switch 25 includes an opening baffle 251, a spring 252, and a support plate 253; the lower end of the hanging rod 32 passes through the central tube 24 and penetrates through the opening baffle 251, and the opening baffle 251 is provided with a through hole for the hanging rod 32 to pass through, so that the opening baffle 251 is slidably sleeved on the hanging rod 32; the lower end of the hanging rod 32 is fixedly connected to the support plate 253; the spring 252 is sleeved on the hanging rod 32, and the lower end of the spring 252 is fixedly connected to the support plate 253, and the upper end of the spring 252 abuts against the bottom surface of the opening baffle 251. In a specific optional embodiment, as Figure 2 described, two connecting rods 33 are fixedly arranged on the rod body of the hanging rod 32 in the circumferential direction, and the ends of the two connecting rods 33 far away from the hanging rod 32 are fixedly connected to the central tube 24, and the two connecting rods 33 are symmetrically arranged relative to the axis of the central tube 24, so that the axis of the hanging rod 32 coincides with the axis of the central tube 24, making the connection between the hanging rod 32 and the central tube 24 more stable and effectively improving the stability of the central tube 24 during up and down movement. It should be noted that, as Figure 4 shown, one end of the connecting rod 33 is fixedly connected to the hanging rod 32, the end of the connecting rod 33 far away from the hanging rod 32 is connected to the upper end surface of the central tube 24, and the upper opening of the central tube 24 is opened at the connection with the connecting rod 33, so that the upper opening of the central tube 24 can discharge water smoothly.

[0047] When the mud-water separation cyclone is just started, the driving device 3 drives the hanging rod 32 to rise, driving the support plate 253 to move upward as well. The spring 252 presses the opening baffle 251 upward, increasing the opening pressure at the pressure switch 25. The underflow port 221 is sealed by the pressure switch 25, and the inside of the mud-water separation cyclone is quickly filled with water to enable the rapid generation of swirl. It should be noted that the spring 252 is in a pre-compressed state. When the internal pressure of the mud-water separation cyclone does not reach the preset opening pressure, the pressure switch 25 is not opened or the opening degree is very small. At this time, the mud-water separation cyclone vibrates under the action of the spring 252, and then the driving device 3 drives the hanging rod 32 to descend, reducing the opening pressure at the pressure switch 25, and the central tube 24 can quickly return water. When the internal pressure of the mud-water separation cyclone reaches or exceeds the preset opening pressure, the spring 252 is compressed downward, and the opening degree of the pressure switch 25 increases, causing the underflow port 221 to quickly discharge mud outward.

[0048] Refer to Figure 2 , Figure 5 and Figure 6, Further explanation, a flow guide cover 243 is sleeved on the outer peripheral wall of the circular tube section 241. The flow guide cover 243 is conical, and the apex of the cone of the flow guide cover 243 is arranged upward. The flow guide cover 243 is placed in the swirl chamber 23, and there is a gap between the flow guide cover 243 and the output end of the slurry inlet pipe 4 in the horizontal direction.

[0049] By providing the flow guide cover 243, a more complex flow pattern can be formed for the fluid in the swirl chamber 23, enhancing the flow effect of the fluid in the swirl chamber 23, changing the rotation radius and speed of the fluid, and optimizing the swirl effect. Specifically, the flow guide cover 243 moves with the movement of the central pipe 24, which can further affect the rotation radius and speed of the fluid in the swirl chamber 23, helping to adjust the separation accuracy of the mud-water separation cyclone and optimizing the separation effect. There is a gap between the flow guide cover 243 and the output end of the slurry inlet pipe 4 in the horizontal direction, so that the flow guide cover 243 will not touch the slurry outlet end of the slurry inlet pipe 4 when moving up and down along the central pipe 24. Optionally, the number of the flow guide covers 243 can be set to two, and the output end of the slurry inlet pipe 4 is located between the two flow guide covers 243. Optionally, an annular plate 2431 is further connected to the lower end of the flow guide cover 243 to further affect the fluid movement in the swirl chamber 23.

[0050] Refer to Figures 1 to 2 , Further explanation, the swirl chamber body 2 further includes an upper conical cylinder 26. The upper end of the cylindrical cylinder 21 is connected to the upper conical cylinder 26. The diameter of the upper end of the upper conical cylinder 26 is smaller than the diameter of the lower end of the upper conical cylinder 26. The upper conical cylinder 26 is in communication with the swirl chamber 23. The upper end of the circular tube section 241 penetrates through the upper conical cylinder 26 to communicate with the cavity 11.

[0051] By communicating and arranging the upper conical cylinder 26 at the upper end of the cylindrical cylinder 21, when the flow guide cover 243 is arranged on the circular tube section 241 of the central pipe 24, the design of the upper conical cylinder 26 can provide an ascending space for the central pipe 24, enabling the flow guide cover 243 to have a larger movement space, which helps to enhance the flow effect of the fluid in the swirl chamber 23 and optimize the swirl effect.

[0052] Refer to Figure 1 , Figure 7 and Figure 8, Further explanation is as follows. The upper conical cylinder 26 is enclosed by a first screen 261, and the cylindrical cylinder 21 is enclosed by a second screen 211. A partition 12 is connected between the outer peripheral wall of the upper conical cylinder 26 and the inner side wall of the cavity 11. The partition 12 divides the cavity 11 into an upper cavity 111 and a lower cavity 112. The water outlet pipeline 5 includes a first water outlet pipe 51 and a second water outlet pipe 52. The input end of the first water outlet pipe 51 is communicated with the upper cavity 111, and the input end of the second water outlet pipe 52 is communicated with the lower cavity 112.

[0053] Since the upper conical cylinder 26 is enclosed by the first screen 261 and the cylindrical cylinder 21 is enclosed by the second screen 211, dehydration can also be carried out at the screen of the mud-water separation cyclone. At the same time, by providing the partition 12 to divide the cavity 11 into the upper cavity 111 and the lower cavity 112, and the upper cavity 111 is communicated with the first water outlet pipe 51 and the lower cavity 112 is communicated with the second water outlet pipe 52, the dehydration outlets are increased, effectively improving the dehydration efficiency. Optionally, the aperture of the screen can be flexibly adjusted according to the particle size of the solid particles in the slurry to be separated, which is beneficial to screening particles of different particle sizes and improving the separation efficiency. Preferably, the aperture of the screen is 5-10 mm.

[0054] Refer to Figure 8 , Further explanation is as follows. It further includes a positive and negative pressure generating device 6, which is communicated with the upper cavity 111 and the lower cavity 112 to provide positive pressure and / or negative pressure for the upper cavity 111 and the lower cavity 112.

[0055] By controlling the pressure difference between the inside of the swirl chamber 23 and the upper cavity 111 or the lower cavity 112 through the positive and negative pressure generating device 6, the dehydration efficiency is further improved. Specifically, the positive and negative pressure generating device 6 has multiple output ends, and each output end can be independently controlled. When the positive and negative pressure generating device 6 decompresses the upper cavity 111 or the lower cavity 112, the liquid in the swirl chamber 23 can be quickly discharged into the upper cavity 111 or the lower cavity 112, effectively improving the dehydration efficiency. When the positive and negative pressure generating device 6 pressurizes the upper cavity 111, it can dredge the first screen 261, and when the positive and negative pressure generating device 6 pressurizes the lower cavity 112, it can dredge the second screen 211, preventing the first screen 261 or the second screen 211 from being blocked.

[0056] Refer to Figure 8, Further explanation, the water outlet pipeline 5 further includes a third water outlet pipe 53. The input end of the third water outlet pipe 53 is communicated with the lower cavity 112, the output end of the third water outlet pipe 53 is communicated with the second water outlet pipe 52, and the position where the third water outlet pipe 53 is communicated with the lower cavity 112 is higher than the position where the second water outlet pipe 52 is communicated with the lower cavity 112.

[0057] By setting the input end of the third water outlet pipe 53 to be communicated with the lower cavity 112, the output end of the third water outlet pipe 53 to be communicated with the second water outlet pipe 52, and the position where the third water outlet pipe 53 is communicated with the lower cavity 112 is higher than the position where the second water outlet pipe 52 is communicated with the lower cavity 112, the outlet for draining the lower cavity 112 is increased, which is beneficial to accelerating the discharge of the liquid in the lower cavity 112 and improving the dehydration treatment efficiency.

[0058] Refer to Figure 8 , Further explanation, the first water outlet pipe 51 is arranged on the upper end surface of the housing 1 and extends into the housing 1 to be communicated with the upper cavity 111, and the number of the first water outlet pipes 51 is multiple; the water outlet pipeline 5 further includes a fourth water outlet pipe 54, and the output ends of the multiple first water outlet pipes 51 are communicated with the fourth water outlet pipe 54; the positive and negative pressure generating device 6 is communicated with the fourth water outlet pipe 54 to provide positive pressure for the fourth water outlet pipe 54.

[0059] By pressurizing the fourth water outlet pipe 54 through the positive and negative pressure generating device 6, the flow rate in the fourth water outlet pipe 54 can be increased, thereby increasing the flow rate, which helps to accelerate the discharge of the liquid in the upper cavity 111 and improve the efficiency of the dehydration treatment. Optionally, the multiple first water outlet pipes 51 are arranged parallel to each other. Optionally, the multiple first water outlet pipes 51 are evenly distributed and symmetrically arranged with respect to the center axis of the upper cavity 111.

[0060] Refer to Figure 8 , Further explanation, the number of the first water outlet pipes 51 is four, two of the first water outlet pipes 51 are in a group, and each group of the first water outlet pipes 51 is arranged side by side and located on the same side of the central pipe 24;

[0061] Each group of the first water outlet pipes 51 is correspondingly provided with a first inclined plate 13 and a second inclined plate 14, and the first inclined plate 13 and the second inclined plate 14 are arranged in the upper cavity 111, and the upper end of the first inclined plate 13 is connected to the upper wall of the upper cavity 111 and is located between the two first water outlet pipes 51; the lower end of the first inclined plate 13 is inclined downward in the direction of the central pipe 24, and the lower end of the first inclined plate 13 exceeds the first water outlet pipe 51 close to the central pipe 24 in the horizontal direction; the upper end of the second inclined plate 14 is connected to the lower end of the first inclined plate 13, and the lower end of the second inclined plate 14 is inclined downward in the direction away from the central pipe 24, and the lower end of the second inclined plate 14 exceeds the first water outlet pipe 51 away from the central pipe 24 in the horizontal direction.

[0062] By providing the first inclined plate 13 and the second inclined plate 14, the solid particles can be blocked and settled to a certain extent, thereby reducing the solid particles in the upper chamber 111 from directly entering the first water outlet pipe 51, thereby optimizing the separation effect.

[0063] See also Figure 8 , further explained, the water outlet pipeline 5 also includes a flow meter 56, and the flow meter 56 is used to monitor the flow in the water outlet pipeline 5.

[0064] By setting the flow meter 56, the flow rate of the fluid passing through the outlet pipe 5 can be monitored in real time, and the working state of the mud-water separation cyclone can be adjusted as needed, so as to ensure the stability of the flow rate, ensure the normal operation of the entire system, and promptly discover abnormal conditions and take corresponding measures to prevent accidents. Specifically, the fourth outlet pipe 54 and the second outlet pipe 52 are respectively provided with the flow meter 56 to monitor the flow rate of the fluid in the fourth outlet pipe 54 and the second outlet pipe 52; specifically, the output end of the fourth outlet pipe 54 and the output end of the second outlet pipe 52 are respectively provided with the gate valve 55.

[0065] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. A mud-water separation cyclone, characterized in that: include: shell; A cyclone chamber body, the top of which is located in the shell, and a cavity is formed between the section of the cyclone chamber body in the shell and the shell; The cyclone chamber body comprises a cylindrical cylinder and a lower cone cylinder, the lower end of the cylindrical cylinder is connected to the lower cone cylinder, the upper end diameter of the lower cone cylinder is larger than the lower end diameter of the lower cone cylinder, the cylindrical cylinder and the lower cone cylinder are internally connected to each other to form a cyclone chamber, the bottom of the lower cone cylinder is provided with a bottom flow port, the bottom flow port is arranged outside the shell, and a pressure switch is arranged at the bottom flow port; The cyclone chamber body is provided with a central tube with openings at both ends, and the central tube is movably arranged up and down relative to the cyclone chamber body, and the central tube includes a circular tube section and a protruding section arranged from top to bottom, and the upper end of the circular tube section passes through the cyclone chamber body to be connected to the cavity; the middle diameter of the protruding section is larger than the diameter of the circular tube section and the bottom diameter of the protruding section; A driving device, the driving device comprising a lifting driving unit and a suspension rod, the suspension rod is fixedly connected to the central tube, and the output end of the lifting driving unit is drivingly connected to the suspension rod to drive the suspension rod to rise and fall; A slurry inlet pipe, the slurry outlet end of which passes through the outer shell and the cyclone chamber body in sequence to input slurry into the cyclone chamber; A water outlet pipeline is connected to the cavity to discharge water in the cavity.

2. The mud-water separation cyclone according to claim 1, characterized in that: The pressure switch includes an opening baffle, a spring and a support plate; the lower end of the suspension rod passes through the central tube and penetrates the opening baffle, so that the opening baffle is slidably sleeved on the suspension rod; the lower end of the suspension rod is fixedly connected to the support plate; the spring is sleeved on the suspension rod, and the lower end of the spring is fixedly connected to the support plate, and the upper end of the spring abuts against the bottom surface of the opening baffle.

3. The mud-water separation cyclone according to claim 1, characterized in that: The outer peripheral wall of the circular tube section is sleeved with a flow guide cover, which is conical and has its cone top facing upwards; the flow guide cover is placed in the cyclone chamber, and there is a gap between the flow guide cover and the output end of the slurry inlet pipe in the horizontal direction.

4. The mud-water separation cyclone according to claim 3, characterized in that: The cyclone chamber body also includes an upper cone cylinder, the upper end of the cylindrical cylinder is connected to the upper cone cylinder, the upper end diameter of the upper cone cylinder is smaller than the lower end diameter of the upper cone cylinder, and the upper cone cylinder and the cyclone chamber are connected to each other; the upper end of the circular tube section passes through the upper cone cylinder to be connected to the cavity.

5. The mud-water separation cyclone according to claim 4, characterized in that: The upper cone is surrounded by a first screen, and the cylindrical cylinder is surrounded by a second screen; a partition is connected between the outer peripheral wall of the upper cone and the inner side wall of the cavity, and the partition divides the cavity into an upper cavity and a lower cavity; The water outlet pipeline includes a first water outlet pipe and a second water outlet pipe, the input end of the first water outlet pipe is connected to the upper cavity, and the input end of the second water outlet pipe is connected to the lower cavity.

6. The mud-water separation cyclone according to claim 5, characterized in that: It also includes a positive and negative pressure generating device, which is connected to the upper chamber and the lower chamber to provide positive pressure and / or negative pressure to the upper chamber and the lower chamber.

7. The mud-water separation cyclone according to claim 6, characterized in that: The water outlet pipeline also includes a third water outlet pipe, an input end of the third water outlet pipe is connected to the lower cavity, an output end of the third water outlet pipe is connected to the second water outlet pipe, and a position where the third water outlet pipe is connected to the lower cavity is higher than a position where the second water outlet pipe is connected to the lower cavity.

8. The mud-water separation cyclone according to claim 6, characterized in that: The first water outlet pipe is arranged on the upper end surface of the shell and extends into the shell to communicate with the upper cavity, and there are multiple first water outlet pipes; The water outlet pipeline also includes a fourth water outlet pipe, and the output ends of the plurality of the first water outlet pipes are connected to the fourth water outlet pipe; the positive and negative pressure generating device is connected to the fourth water outlet pipe to provide positive pressure to the fourth water outlet pipe.

9. The mud-water separation cyclone according to claim 8, characterized in that: The number of the first water outlet pipes is four, two of which form a group, and each group of the first water outlet pipes is arranged side by side and located on the same side of the central pipe; Each group of the first water outlet pipes is correspondingly provided with a first inclined plate and a second inclined plate, the first inclined plate and the second inclined plate are arranged in the upper cavity, the upper end of the first inclined plate is connected to the upper wall of the upper cavity, and is located between the two first water outlet pipes; the lower end of the first inclined plate is inclined downward in the direction of the central tube, and the lower end of the first inclined plate exceeds the first water outlet pipe close to the central tube in the horizontal direction; the upper end of the second inclined plate is connected to the lower end of the first inclined plate, the lower end of the second inclined plate is inclined downward in the direction away from the central tube, and the lower end of the second inclined plate exceeds the first water outlet pipe away from the central tube in the horizontal direction.

10. The mud-water separation cyclone according to claim 1, characterized in that: The water outlet pipeline also includes a flow meter, which is used to monitor the flow in the water outlet pipeline.

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