A fine sand washing and sand separating device with anti-disturbance function

Abstract

A fine sand washing and sand separating device with an anti-disturbance function according to the present invention includes a conical separator and a fluidization chamber connecting piece. The conical separator includes a conical housing and an anti-disturbance stirring piece. A ring-shaped water outlet weir plate is installed at the top of the housing. The outer edge surface of the housing is tangentially connected to a water inlet pipe. The anti-disturbance stirring piece is hoisted at the top of the conical separator and extends into the fluidization chamber connecting piece installed at the bottom of the housing. For the fine sand washing and sand separating device with an anti-disturbance function according to the present invention, a water outlet weir plate is installed at the top of the housing to realize the reflux and derivation of the water flow after removing the fine sand. And through the anti-disturbance stirring piece in the middle of the housing, stirring is carried out to form a vortex, avoiding the sedimentation and caking of the internal sand and gravel. At the same time, during the stirring process, the mutual friction between the sand grains can promote the effective separation of the organic impurities and inorganic particles adhered to the surface.

Description

Technical Field

[0001] The present invention relates to the technical field of water treatment, and more specifically, to a fine sand washing and separating device with an anti-disturbance function. Background Art

[0002] High concentration of inorganic sand particles is one of the significant characteristics of urban sewage in China. Among them, sand particles with a particle size > 75 microns are usually deposited at the bottom of pipelines or sewage treatment structures, and artificial intervention is required for treatment.

[0003] Most sewage treatment plants use grit chambers and sand-water separators to remove sand particles from sewage. The sand particles deposited in pipelines are collected and transported by mechanical sewage suction and then resourcefully disposed through a sand washing and separating device.

[0004] The above-mentioned sand-water separation device and sand washing and separating device are mainly designed for sand particles with a diameter > 200 microns and a relative specific gravity of 2.65. Lack of attention is paid to the removal effect of sand particles with a particle size < 200 microns, resulting in serious loss of fine sand with a diameter between 75 - 200 microns during the sand washing and separating process and ineffective separation. As a result, fine sand siltation occurs in subsequent structures or pipelines, and equipment is worn by fine sand.

[0005] In Chinese patent applications CN219051646, CN219898510, and CN209155197, a sand washing and separating device is disclosed, which mainly includes a conical separation structure, a spiral conveying structure, and a fluidization stirring structure. However, due to: 1. Both the feeding part and the water outlet part of the conical separation part are located at the top of the conical separation structure, and short-circuit flow is likely to occur during the feeding process, resulting in the feed not entering the lower half of the separation structure for effective separation, thus reducing the separation efficiency; 2. The washing of sand particles in the device is mainly completed by stirring the sand particles deposited at the bottom of the conical separation structure to form a fluidized bed friction effect. During this process, the sand particles will inevitably be resuspended due to the flushing and stirring of the fluidization stirring structure, and then resuspended from the bottom of the separation structure into the middle and upper parts. Subsequently, they may be entrained by the short-circuit flow in the feed and enter the water outlet, or be lost through the slag discharge pipeline in the middle, thus reducing the separation efficiency.

[0006] Therefore, the main object of the present invention is to optimize the water flow pattern inside the conical separation structure to avoid short-circuit flow and improve the internal components of the separation structure to prevent sand particle resuspension during the fluidization stirring process. Summary of the Invention

[0007] The present invention provides a fine sand washing and separating device with an anti-disturbance function, aiming to optimize the water flow pattern inside the sand washing and separating equipment to avoid short-circuit flow, improve the internal components of the sand washing and separating equipment to prevent sand particle resuspension during the fluidization stirring process, and thus achieve the interception and separation effect of fine sand with a particle size of 75 - 200 microns.

[0008] According to one aspect of the present invention, a fine sand washing and separating device with an anti-disturbance function is provided, which includes a conical separator and a fluidization chamber connecting member. The conical separator includes a conical housing and an anti-disturbance stirring member. A ring-shaped water outlet weir plate is installed at the top of the housing, and a water inlet pipe is tangentially connected to the outer edge surface of the housing. The anti-disturbance stirring member is hoisted at the top of the conical separator and extends into the fluidization chamber connecting member installed at the bottom of the housing.

[0009] Preferably, on the basis of the above solution, the housing includes a cylindrical connecting portion and a conical cone portion. The connecting portion is connected to the fluidization chamber connecting member through the cone portion, and the water inlet pipe is tangentially connected to the outer edge surface of the connecting portion; the water outlet weir plate is installed on the connecting portion.

[0010] Preferably, on the basis of the above solution, the water outlet weir plate includes an outer peripheral plate, an inner peripheral plate and a bottom plate. The outer peripheral plate is connected to the inner peripheral plate through the bottom plate to form a water outlet weir. The height of the outer peripheral plate is greater than the height of the inner peripheral plate, and a conical inner-turning anti-short-circuit plate is formed by extending downward at the connection between the inner peripheral plate and the bottom plate.

[0011] Preferably, on the basis of the above solution, the anti-disturbance stirring member includes a mounting frame, an anti-disturbance barrel and a stirring shaft. The mounting frame is erected at the top of the conical separator. The anti-disturbance barrel is installed on the mounting frame, and the stirring shaft driven by a stirring motor is installed on the mounting frame. The stirring shaft penetrates through the anti-disturbance barrel and extends into the fluidization chamber connecting member. The bottom of the anti-disturbance barrel extends outward to form a conical anti-disturbance cone cover, and the diameter of the inner-turning anti-short-circuit plate is smaller than the diameter of the inner peripheral plate.

[0012] A columnar special-shaped cavity is provided in the fluidization chamber connecting member, and an annular fluidization pipe is coaxially arranged in the columnar special-shaped cavity, and a pressure-increasing nozzle is arranged on the annular fluidization pipe.

[0013] Preferably, on the basis of the above solution, a plurality of stirring paddles are arranged on the stirring shaft in the fluidization chamber connecting member. The stirring paddles are arranged at intervals, and each stirring paddle includes at least 5 arc-shaped stirring blades, and the stirring blades are evenly arranged at intervals on the stirring shaft.

[0014] Preferably, on the basis of the above solution, a pressure balance port is provided on the anti-disturbance barrel near the motor side.

[0015] Preferably, on the basis of the above solution, it further includes a U-shaped spiral sand-lifting auger, and the spiral sand-lifting auger is communicated with the sand outlet of the conical separator through the fluidization chamber connecting member.

[0016] Preferably, based on the above solution, the spiral sand-lifting auger is arranged obliquely, and a flushing pipe is arranged inside the spiral sand-lifting auger.

[0017] A fine sand washing and sand separating device with an anti-disturbance function according to the present invention is provided with a water outlet weir plate at the top of the housing to realize the reflux and derivation of the water flow after removing the fine sand, and an anti-disturbance stirring member in the middle of the housing is used for stirring to form a vortex, avoiding the sedimentation and caking of the sand and gravel inside. At the same time, during the stirring process, the mutual friction between the sand grains can promote the effective separation of the organic impurities and inorganic particles adhering to the surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the drawings:

[0019] Figure 1 is a schematic structural diagram of the fine sand washing and sand separating device with an anti-disturbance function of the present invention;

[0020] Figure 2 is a perspective view of the fine sand washing and sand separating device with an anti-disturbance function of the present invention;

[0021] Figure 3 is another perspective view of the fine sand washing and sand separating device with an anti-disturbance function of the present invention;

[0022] Figure 4 is a cross-sectional view of the fine sand washing and sand separating device with an anti-disturbance function of the present invention;

[0023] Figure 5 is a perspective view of the anti-disturbance stirring member of the present invention;

[0024] Explanation of the reference numerals in the drawings:

[0025] Conical separator 1, housing 11, connecting part 112, conical part 113, anti-disturbance stirring member 12, mounting frame 121, anti-disturbance barrel 122, stirring shaft 123, anti-disturbance conical cover 124, stirring paddle 125, stirring blade 126, pressure balance port 127, stirring motor 128, water outlet weir plate 13, outer peripheral plate 131, inner peripheral plate 132, bottom plate 133, water outlet 134, water inlet pipe 14, inner turning anti-short-circuit plate 15, slag discharge pipe 16;

[0026] Fluidization chamber connecting member 2, special-shaped cavity 21, annular fluidization pipe 22, booster nozzle 23;

[0027] Spiral sand-lifting auger 3, flushing pipe 31, sand discharge port 32, motor 33, emptying pipe 34;

[0028] Overflow area 100, sand washing area 200, sand discharging area 300. Detailed implementation manners

[0029] The following will further describe in detail the specific implementation manners of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0030] It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups.

[0031] For the sake of simplicity of the drawings, only the parts related to the present invention are schematically shown in each drawing, and they do not represent their actual structures as products. In addition, for the sake of simplicity and easy understanding of the drawings, in some drawings, for components with the same structure or function, only one of them is schematically shown, or only one of them is marked. In this article, "one" not only means "only this one", but also can mean "more than one" situation.

[0032] It should also be further understood that the term "and / or" used in the specification and appended claims of this application refers to any combination and all possible combinations of one or more of the related listed items, and includes these combinations.

[0033] In the embodiments shown in the drawings, the indication of directions (such as up, down, left, right, front and back) is used to explain that the structures and movements of various components of the present invention are not absolute but relative. When these components are in the positions shown in the drawings, these explanations are appropriate. If the descriptions of the positions of these components change, then the indications of these directions also change accordingly.

[0034] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will describe the specific implementation manners of the present invention with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings, and other implementation manners can also be obtained.

[0036] Please refer to Figure 1 and in combination with Figure 2and Figure 3 As shown, a fine sand washing and sand separation device with an anti-disturbance function of the present invention comprises a conical separator 1 and a fluidizing chamber connector 2. The conical separator 1 comprises a conical shell 11 and an anti-disturbance stirring member 12. An annular water outlet weir plate 13 is installed on the top of the shell 11. The outer edge surface of the shell 11 is tangentially connected to the water inlet pipe 14. The anti-disturbance stirring member 12 is hoisted on the top of the conical separator 1 and extends into the fluidizing chamber connector 2 installed on the bottom of the shell 11.

[0037] During operation, the sand-water mixture to be treated is introduced tangentially through the water inlet pipe 14 and rotated at high speed on the inner edge surface of the shell 11. Under the action of inertia and gravity, the sand and gravel in the mixture will settle to the bottom, and the water will gather in the middle. After the water flows over the outlet weir plate 13, it is discharged. The sand and gravel deposited at the bottom can be prevented from forming a plate at the bottom and blocking the outlet under the action of the anti-disturbance stirring element 12 in the middle, and are introduced into the fluidizing chamber connector 2 and discharged outward.

[0038] Among them, the shell 11 of the present invention includes a cylindrical connecting portion 112 and a conical cone portion 113, the connecting portion 112 is connected to the fluidization chamber connecting piece 2 through the cone portion 113, and the water inlet pipe 14 is tangentially connected to the outer edge surface of the connecting portion 112; the water outlet weir plate 13 is installed on the connecting portion 112; specifically, the water outlet weir plate 13 of the present invention includes an outer plate 131, an inner enclosure plate 132 and a bottom plate 133, the outer plate 131 is connected to the inner enclosure plate 132 through the bottom plate 133 to form a water outlet weir, and a water outlet 134 is designed on the bottom plate 133 of the water outlet weir, the height of the outer plate 131 is greater than the height of the inner enclosure plate 132, and is provided on the outer plate 131; the connection between the inner enclosure plate 132 and the bottom plate 133 extends downward to form a conical inward-turned anti-short flow plate 15, and the diameter of the inward-turned anti-short flow plate 15 is smaller than the diameter of the inner enclosure plate 132. For specific structure, please refer to Figure 3 and Figure 4 shown.

[0039] It should be noted that the anti-disturbance stirring element 12 of the present invention includes a mounting frame 121, an anti-disturbance barrel 122 and a stirring shaft 123. The mounting frame 121 is mounted on the top of the conical separator 1, the anti-disturbance barrel 122 is mounted on the mounting frame 121, and the stirring shaft 123 is mounted on the mounting frame 121. The stirring shaft 123 is passed through the anti-disturbance barrel 122 and extends into the fluidizing chamber connector 2. The bottom of the anti-disturbance barrel 122 extends outward to form a conical anti-disturbance cone cover 124.

[0040] In this way, the outer edge surface of the anti-disturbance barrel 122 of the present invention, the inner enclosure 132, and the inward-turned anti-short flow plate 15 are arranged to form an overflow area 100; the outer edge surface of the anti-disturbance barrel 122 of the present invention, the inner edge surface of the cone portion 113, and the anti-disturbance cone cover 124 form a sand washing area 200; and the interior of the fluidizing chamber connector 2 forms a sand discharge area 300.

[0041] When the sand-water mixture is tangentially introduced into the connecting part 112 through the water inlet pipe 14, the incoming water has a certain flow rate, and a swirling flow is formed at the top of the conical part 113. The annular weir at the top of the conical part 113 is the only continuous drainage channel of the device. Therefore, two radially inner and outer separated regions are established inside the conical part 113. In the region far from the central axis, the water flow spirals downward along the inner wall of the conical part 113. Since the diameter of the conical part 113 gradually decreases, this part of the water flow is forced to converge to the bottom. When it hits the anti-disturbance conical cover 124, the flow direction changes and it rotates upward in the axial direction (that is, the outer side spirals downward and the inner side rotates upward).

[0042] In the above process, under the blocking of the inward-turning anti-short-circuit plate 15 and the action of gravity, a water flow that spirals downward is formed along the inner wall of the conical part 113. In the sand washing area 200, the sand grains settle to the inner wall of the conical part 113 under the action of gravity and centrifugal force, and under the action of inertia and gravity, they migrate and gather towards the bottom of the conical part 113. By adjusting the diameter and height of the conical part 113, the sedimentation efficiency of fine sand grains can be specifically changed, thereby improving the removal efficiency of fine sand with a diameter of 75 - 200 microns.

[0043] Since the water inlet pipe 14 is located at the top of the conical part 113, the axial distance between the water inlet pipe 14 and the conical cover 124 is longer than that of the top water outlet weir, and the top water outlet weir is the only continuous outflow channel. In order to prevent the upward water flow in the inner circle from disturbing the water flow near the water inlet, resulting in that part of the incoming water unable to generate a starting flow state of spiraling downward and being disturbed by the upward water flow in the radially inner circle and directly discharged from the annular water outlet weir along with the upward water flow in the inner circle, the inward-turning anti-short-circuit plate 15 of the present invention is designed in a conical structure. The diameter of the inward-turning anti-short-circuit plate 15 is smaller than the diameter of the inner enclosing plate 132, and the bottom of the inward-turning anti-short-circuit plate 15 extends to the boundary of the radially inner and outer circle stratification inside the conical part 113 to ensure its effect.

[0044] When the above-mentioned water flow that spirals downward flows to the bottom area of the conical part 113, the flow direction will change to spiral upward under the action of the anti-disturbance conical cover 124, and it will continuously flow upward around the anti-disturbance barrel 122 and enter the overflow area 100 above the inward-turning anti-short-circuit plate 15, and finally enter the drainage tank through the water outlet weir plate 13 and be discharged by the drain pipe. In this process, since the water flow maintains a spiral upward flow state, the sedimentation effect of fine sand with a diameter of 75 - 200 microns under the action of gravity is enhanced, which is beneficial to the interception and sedimentation of fine sand.

[0045] The sand grains that settle to the bottom of the conical part 113 will be driven by the annular shape generated by the stirring of the stirring shaft 123 and further gather towards the central part of the conical tank until they enter the columnar special-shaped cavity 21 of the fluidization chamber connecting piece 2 and accumulate in this cavity.

[0046] It should be noted that a plurality of stirring paddles 125 are arranged on the stirring shaft 123 inside the fluidization chamber connector 2 of the present invention. The stirring paddles 125 are arranged at intervals, and each stirring paddle 125 includes at least 5 arc-shaped stirring blades 126. The stirring blades 126 are evenly arranged at intervals on the stirring shaft 123. In order to prevent sand grains from caking and blocking inside the fluidization chamber connector 2, a columnar special-shaped cavity 21 is arranged inside the fluidization chamber connector 2, and an annular fluidization pipe 22 and a booster nozzle 23 are arranged inside the columnar special-shaped cavity 21.

[0047] During use, since the stirring shafts 123 are arranged at different heights inside the columnar special-shaped cavity 21, as the height of the sand grains piled up in the cavity increases, the continuous stirring of the stirring paddles will drive the sand grains to produce a flow effect, avoiding sand grain caking and siltation. During the stirring process, the mutual friction between the sand grains can promote the effective separation of the organic impurities and inorganic particles adhering to the surface.

[0048] The annular fluidization pipe 22 and the booster nozzle 23 are coaxially arranged with the columnar special-shaped cavity 21. The annular fluidization pipe 22 operates intermittently, and high-pressure water is sprayed into the columnar special-shaped cavity 21 through a plurality of booster nozzles 23. The direction of the water sprayed by the booster nozzle 23 is opposite to the rotation direction of the stirring shaft 123, which will generate a hydraulic disturbance, promoting the resuspension of the eluted organic impurities and fine particles in the cavity, and re-entering the conical part 113 upward through the fluidization chamber connector 2.

[0049] At this time, due to the shielding effect of the anti-disturbance cone cover 124, most of the resuspended organic impurities and fine particles will enter the sand discharge area 300 inside the anti-disturbance barrel 122, rather than entering the sand washing area 200 surrounded by the conical part 113 and the inwardly turned anti-short-circuit plate 15, thereby preventing this part of the organic matter and fine sand from entering the overflow area 100 between the anti-short-circuit weir plate and the annular water outlet weir and escaping.

[0050] Since there is an external energy such as flushing and stirring driving the fluid flow inside the sand discharge area 300 surrounded by the columnar special-shaped cavity 21 and the anti-disturbance barrel 122, while the sand washing area 200 surrounded by the conical part 113 and the inwardly turned anti-short-circuit plate 15 completely drives the fluid flow through the gravitational potential energy of the incoming material, there is a liquid level difference between the sand washing area 200 and the sand discharge area 300 during operation.

[0051] In order to balance the liquid level difference between the two areas, a pressure balance port 127 is arranged at a position of the anti-disturbance barrel 122 close to the top stirring motor 128 to connect the fluids in the sand washing area 200 and the sand discharge area 300.

[0052] Preferably, the present invention also sets a slag discharge pipe 16 on the conical part 113 to realize automatic intermittent opening and closing control through an electric ball valve. It is delayed to open after the annular fluidization pipe 22 flushes the sand grains in the columnar special-shaped cavity 21, and closes after running for a fixed time.

[0053] The slag discharge pipe 16 is connected to the sand discharge area 300 enclosed inside the anti-disturbance barrel 122 to ensure the discharge of the re-suspended organic matter after flushing. The re-suspended fine sand settles through the delayed start of the slag discharge pipe 16 and re-enters the columnar special-shaped cavity 21 to avoid escape.

[0054] Furthermore, the number of the tangentially arranged feed pipes of the present invention is greater than or equal to 1. When the number is greater than 1, the positions of the feed pipes are axially symmetric about the central axis of the conical part 113 to improve its processing efficiency.

[0055] Please continue to refer to Figure 5 As shown, a plurality of stirring paddles 125 are arranged on the stirring shaft 123 inside the fluidization chamber connector 2 of the present invention. The stirring paddles 125 are arranged at intervals, and each stirring paddle 125 includes at least 5 arc-shaped stirring blades 126. The stirring blades 126 are evenly arranged at intervals on the stirring shaft 123, and the outer circle diameters of each group of stirring paddles are different and are arranged in a scattered manner to ensure its adaptation to the inner edge surfaces of the corresponding anti-disturbance barrel 122 and the columnar special-shaped cavity 21 and improve its stirring effect.

[0056] The present invention further includes a U-shaped spiral sand-lifting auger 3. The spiral sand-lifting auger 3 is communicated with the sand outlet of the conical separator 1 through the fluidization chamber connector 2. The spiral sand-lifting auger 3 is arranged obliquely and is driven by a motor 33 to drive the screw conveyor shaft inside it to rotate, so as to lift the sand and discharge it through the sand discharge port 32. Preferably, an emptying pipe 34 is also arranged on the spiral sand-lifting auger 3.

[0057] During use, the washed fine sand grains are finally discharged outside the equipment through the continuous operation of the spiral sand-lifting auger 3. The organic matter content of the discharged fine sand is significantly reduced, which is beneficial to realizing resource recovery and utilization.

[0058] Furthermore, a washing pipe 31 is installed on the inner side wall of the spiral sand-lifting auger 3 of the present invention for intermittent washing to reduce the solid content rate of the fluid inside the spiral, facilitate the improvement of the separation efficiency, and discharge it through the emptying pipe 34.

[0059] For a fine sand washing and sand separation device with an anti-disturbance function of the present invention, a water outlet weir plate 13 is installed on the top of the housing 11 to realize the reflux and derivation of the water flow after removing the fine sand, and through the anti-disturbance stirring member 12 in the middle of the housing 11, a vortex is formed by stirring. While avoiding the deposition and caking of the sand and gravel inside, during the stirring process, the mutual friction between the sand grains can promote the effective separation of the organic impurities and inorganic particles adhered to the surface.

[0060] Finally, the method of this application is only a preferred implementation, and is not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A fine sand washing and sand separation device with anti-disturbance function, characterized in that: It comprises a conical separator and a fluidizing chamber connecting piece, the conical separator comprises a conical shell and an anti-disturbance stirring piece, the top of the shell is equipped with a ring-shaped water outlet weir plate, the outer edge surface of the shell is tangentially connected to the water inlet pipe, the anti-disturbance stirring piece is hoisted at the top of the conical separator and extends into the fluidizing chamber connecting piece installed at the bottom of the shell; the water outlet weir plate comprises an outer plate, an inner plate and a bottom plate, the outer plate is connected to the inner plate through the bottom plate to form a water outlet weir, the height of the outer plate is greater than the height of the inner plate, the connection between the inner plate and the bottom plate extends downward to form a conical inward-turned anti-short flow plate, and the diameter of the inward-turned anti-short flow plate is smaller than the diameter of the inner plate; The anti-disturbance stirring member comprises a mounting frame, an anti-disturbance barrel and a stirring shaft driven by a stirring motor, wherein the mounting frame is mounted on the top of the conical separator, the anti-disturbance barrel is mounted on the mounting frame, and the stirring shaft is mounted on the mounting frame, the stirring shaft is passed through the anti-disturbance barrel and extends into the fluidization chamber connecting member, and the bottom of the anti-disturbance barrel extends outward to form a conical anti-disturbance cone cover; The outer edge surface of the anti-disturbance barrel, the inner edge surface of the cone part and the anti-disturbance cone cover form a sand washing area; the interior of the fluidization chamber connector forms a sand discharge area; due to the shielding effect of the anti-disturbance cone cover, most of the re-suspended organic impurities and fine particles enter the sand discharge area inside the anti-disturbance barrel, rather than entering the sand washing area surrounded by the cone part and the inverted short-flow prevention plate, preventing this part of organic matter and fine sand from entering the overflow area between the short-flow prevention weir plate and the annular outlet weir and escaping.

2. A fine sand washing and sand separation device with anti-disturbance function as claimed in claim 1, characterized in that: The shell includes a cylindrical connecting portion and a conical cone portion, the connecting portion is connected to the fluidizing chamber connecting piece through the cone portion, the water inlet pipe is tangentially connected to the outer edge surface of the connecting portion; the water outlet weir plate is installed on the connecting portion.

3. A fine sand washing and sand separation device with anti-disturbance function as claimed in claim 1, characterized in that: A columnar special-shaped cavity is arranged in the fluidizing cavity connecting piece, and an annular fluidizing pipe is coaxially arranged in the columnar special-shaped cavity, and a boosting nozzle is arranged on the annular fluidizing pipe.

4. A fine sand washing and sand separation device with anti-disturbance function as claimed in claim 1, characterized in that: A plurality of stirring paddles are arranged on the stirring shaft in the fluidizing chamber connector. The stirring paddles are arranged at intervals, and each stirring paddle includes at least 5 arc-shaped stirring blades. The stirring blades are evenly arranged at intervals on the stirring shaft.

5. A fine sand washing and sand separation device with anti-disturbance function as claimed in claim 4, characterized in that: A pressure balancing port is arranged on the anti-disturbance barrel close to one side of the stirring motor.

6. A fine sand washing and sand separation device with anti-disturbance function as claimed in claim 1, characterized in that: It also includes a U-shaped spiral sand lifting auger, which is connected to the sand outlet of the conical separator through the fluidizing chamber connector.

7. A fine sand washing and sand separation device with anti-disturbance function as claimed in claim 6, characterized in that: The spiral sand lifting auger is arranged in an inclined shape, and a flushing pipe is arranged inside the spiral sand lifting auger.

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