Buffering pressure reducer for bottom flow port of cyclone

Abstract

The utility model relates to the technical field of swirler accessories, and discloses a swirler bottom flow port buffer pressure reducer which comprises a buffer pressure reduction cabin, a connecting arm is fixedly installed on the outer wall of the buffer pressure reduction cabin, a strip-shaped groove is formed in the side face of the connecting arm, buffer flow stopping fins are welded to the inner wall of the buffer pressure reduction cabin, and the buffer flow stopping fins are welded to the inner wall of the buffer pressure reduction cabin. A bottom plate is fixedly mounted at the bottom of the buffer depressurization cabin, an efficient buffer mechanism located in an inner cavity of the buffer depressurization cabin is arranged at the top of the bottom plate, a water outlet groove is formed in the center of the top of the bottom plate, and an insertion frame part is movably inserted into an inner cavity of the water outlet groove. The purposes of temporarily buffering and reducing the pressure of the bottom flow of the cyclone can be achieved in the inner cavity of the buffering depressurization cabin, and at the moment, slime water flowing out of the buffering depressurization cabin does not wash the sieve plate and the rear sieve box, so that the sieve plate and the rear sieve box are protected, the service life is prolonged, the cost of spare parts is reduced, and the cost is reduced. And the labor intensity of workers and the maintenance cost are greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydrocyclone accessory technical field, specifically, relate to a hydrocyclone underflow orifice buffer pressure reducer. BACKGROUND

[0002] Fluid cyclone is a common separation and classification equipment, and centrifugal sedimentation principle is usually used. When two-phase mixed liquid to be separated enters the hydrocyclone tangentially from the periphery of the hydrocyclone under certain pressure, strong three-dimensional elliptical type strong rotating shear turbulent flow motion is generated. Since there is a size difference between coarse particles and fine particles, the centrifugal force, centripetal buoyancy, fluid drag and the like are different in size, the centrifugal sedimentation effect is achieved, most of the coarse particles are discharged through the underflow port of the hydrocyclone, and most of the fine particles are discharged through the overflow pipe, so that the separation and classification purpose is achieved.

[0003] The underflow of the hydrocyclone enters the desliming screen, and the underflow is treated through the desliming screen. Since the underflow pressure is huge, the coal slurry water of the underflow will scour the screen plate and the rear screen box in a spiral manner, thereby affecting the service life of the screen plate and the rear screen box. UTILITY MODEL CONTENTS

[0004] The utility model discloses a hydrocyclone underflow orifice buffer pressure reducer, and solves the problem that the coal slurry water of the underflow of the hydrocyclone will scour the screen plate and the rear screen box in a spiral manner, thereby affecting the service life.

[0005] The utility model provides the following technical scheme: a hydrocyclone underflow orifice buffer pressure reducer, including buffer pressure cabin, the outer wall of buffer pressure cabin is fixedly installed with connecting arm, the side surface of connecting arm is equipped with strip groove, the inner wall of buffer pressure cabin is welded with buffer resistance fin, the bottom of buffer pressure cabin is fixedly installed with bottom plate, the top of bottom plate is provided with high -efficient buffer mechanism in the buffer pressure cabin inner chamber.

[0006] As the preferred technical scheme, the center of the top of the bottom plate is provided with a water outlet groove, the inner cavity of the water outlet groove is movably connected with a plug-in frame, and the top of the plug-in frame is provided with an opening.

[0007] Through the above technical scheme, the top of the bottom plate can be prevented from collecting underflow through the design of the opening.

[0008] As the preferred technical scheme, the top of the plug-in frame is fixedly connected with a lifting rod, and the top of the lifting rod is fixedly installed with a water baffle.

[0009] Through the above technical scheme, the water baffle can prevent the underflow under pressure from directly passing through the water outlet groove and impacting the desliming screen.

[0010] As the preferred technical scheme above, the high-efficiency buffering mechanism comprises a positioning frame fixedly installed on the top of the bottom plate, a positioning plate movably inserted into the inner cavity of the positioning frame, and a positioning bolt threadedly connected to the outer wall of the positioning frame and movably connected to the side surface of the positioning plate.

[0011] Through the above technical scheme, the cooperation of the positioning frame, the positioning plate and the positioning bolt facilitates the user to selectively install the hollow cylinder as a whole.

[0012] As the preferred technical scheme above, the top of the positioning plate is fixedly installed with a hollow cylinder, the top and the bottom of the inner wall of the hollow cylinder are welded with a limiting inner rod, and the outer wall of the limiting inner rod is slidably connected with a sliding plate.

[0013] Through the above technical scheme, the limiting inner rod can limit the vertical movement of the sliding plate.

[0014] As the preferred technical scheme above, the bottom of the sliding plate is fixedly installed with an elastic member, the bottom of the elastic member is fixedly connected with the bottom of the inner wall of the hollow cylinder, the top of the sliding plate is movably connected with a limiting ring, the limiting ring is welded to the inner wall of the hollow cylinder, and the top of the sliding plate is provided with a through hole.

[0015] Through the above technical scheme, the elastic member can perform the primary buffering treatment on the impact force of the liquid.

[0016] As the preferred technical scheme above, the top of the sliding plate is fixedly installed with a buffering shaft, the top of the buffering shaft extends to the top of the hollow cylinder and is fixedly connected with an arc-shaped flow-guiding buffering frame, the top of the hollow cylinder is fixedly connected with a protruding ring, the inner wall of the protruding ring is fixedly connected with a sealing ring, and the inner wall of the sealing ring is movably connected with the outer wall of the buffering shaft.

[0017] Through the above technical scheme, the sealing ring can seal the connecting position of the buffering shaft and the protruding ring.

[0018] Compared with the prior art, the utility model has the advantages of:

[0019] The utility model can achieve the purposes of temporary buffering and reducing the pressure of the underflow of the cyclone in the buffering pressure reduction cabin, at this time, the coal slime water coming out of the buffering pressure reduction cabin will not cause the scouring of the sieve plate and the rear sieve box, the sieve plate and the rear sieve box are protected, the service life is prolonged, the spare part cost is reduced, and the labor intensity and the maintenance cost of workers are greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a perspective view of the utility model;

[0021] Figure 2 It is the structure schematic view of the bottom plate of the utility model;

[0022] Figure 3 It is the structure schematic view of the high -efficient buffer mechanism of the utility model;

[0023] Figure 4 It is the inside structure schematic view of the hollow cylinder.

[0024] In the drawing: 1, buffer pressure relief cabin;11, connecting arm;12, strip slot;13, buffer resistance wing;14, bottom plate;141, water outlet groove;142, plug-in frame part;143, lifting rod;144, fender;2, high -efficient buffer mechanism;21, positioning frame;22, positioning bolt;23, positioning plate;24, hollow cylinder;25, limit inner rod;251, sliding plate;252, elastic part;253, limit ring;254, through -hole;255, buffer shaft;256, protruding ring;26, arc -shaped flow -guiding buffer frame. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model.

[0026] As Figures 1-4 Indicated, the utility model provides a technical scheme: a cyclone underflow port buffer pressure reducer, including buffer pressure relief cabin 1, the outer wall of buffer pressure relief cabin 1 is fixedly installed with connecting arm 11, the side of connecting arm 11 is provided with strip slot 12, the inner wall of buffer pressure relief cabin 1 is welded with buffer resistance wing 13, the bottom of buffer pressure relief cabin 1 is fixedly installed with bottom plate 14, the top of bottom plate 14 is provided with high -efficient buffer mechanism 2 in the inner chamber of buffer pressure relief cabin 1, the underflow of cyclone output will impact to the side of buffer resistance wing 13, in turn under the action of gravity, it is flowing downward, realizes the function of buffering pressure, guarantees the security of desliming screen whole, through the cooperation of connecting arm 11 and strip slot 12, can whole installation buffer pressure relief cabin 1 in the bottom position of cyclone by means of bolt, it is convenient for user's use.

[0027] As an embodiment in the embodiment, as Figure 2As shown, the top of the bottom plate 14 is provided with a water outlet groove 141, and a plug-in frame 142 is movably inserted into the inner cavity of the water outlet groove 141. An opening is formed in the top of the plug-in frame 142, and a lifting rod 143 is fixedly connected to the top of the plug-in frame 142. A water baffle 144 is fixedly installed on the top of the lifting rod 143. The vertical direction of the water outlet groove 141 can be raised and closed by the cooperation of the lifting rod 143 and the water baffle 144, so as to avoid the problem that the underflow directly passes through the water outlet groove 141 to impact the desliming screen. The design of the plug-in frame 142 facilitates the user to disassemble and clean the lifting rod 143 and the water baffle 144 during maintenance. The design of the opening avoids the problem that the top of the bottom plate 14 will collect liquid when the machine is stopped.

[0028] As an embodiment in the present embodiment, as shown in Figure 1 、 Figure 3 、 Figure 4 As shown, the high-efficiency buffering mechanism 2 comprises a positioning frame 21 fixedly installed on the top of the bottom plate 14. A positioning plate 23 is movably inserted into the inner cavity of the positioning frame 21. A positioning bolt 22 is threadedly connected to the outer wall of the positioning frame 21. The threaded end of the positioning bolt 22 is movably connected to the side surface of the positioning plate 23. A hollow cylinder 24 is fixedly installed on the top of the positioning plate 23. A limiting inner rod 25 is welded between the top and bottom of the inner wall of the hollow cylinder 24. A sliding plate 251 is slidably connected to the outer wall of the limiting inner rod 25. An elastic member 252 is fixedly installed on the bottom of the sliding plate 251. The bottom of the elastic member 252 is fixedly connected to the bottom of the inner wall of the hollow cylinder 24. A limiting ring 253 is movably connected to the top of the sliding plate 251. The limiting ring 253 is welded to the inner wall of the hollow cylinder 24. A through hole 254 is formed in the top of the sliding plate 251. A buffering shaft 255 is fixedly installed on the top of the sliding plate 251. The top of the buffering shaft 255 extends to the top of the hollow cylinder 24 and is fixedly connected to an arc-shaped flow guide buffering frame 26. A protruding ring 256 is fixedly connected to the top of the hollow cylinder 24. A sealing ring is fixedly connected to the inner wall of the protruding ring 256. The inner wall of the sealing ring is movably connected to the outer wall of the buffering shaft 255. The underflow output by the cyclone will impact into the inner cavity of the arc-shaped flow guide buffering frame 26. The impact force will exert a downward pressure on the buffering shaft 255, so as to make the sliding plate 251 slide up and down on the outer wall of the limiting inner rod 25, and at the same time, the elastic member 252 is compressed. The elastic member 252 is elastically deformed to absorb the impact force. The connection between the buffering shaft 255 and the protruding ring 256 is sealed by the sealing ring. The limiting inner rod 25 is used to limit the vertical movement of the sliding plate 251. The design of the through hole 254 makes the top and bottom cavities of the sliding plate 251 in the hollow cylinder 24 communicate, so as to improve the smoothness of the sliding of the sliding plate 251. The arc-shaped flow guide buffering frame 26 will guide the buffered liquid to the side of the buffering resistance fin 13 for secondary buffering.

[0029] Working principle: when in use, through the cooperation of the connecting arm 11 and the external connecting piece, the whole buffer pressure reduction cabin 1 is installed at the bottom position of the cyclone, so that the bottom flow port of the cyclone is aligned with the inner cavity of the arc-shaped flow guide buffer frame 26, the bottom flow output by the cyclone will impact into the inner cavity of the arc-shaped flow guide buffer frame 26, and the elastic member 252 will produce elastic deformation to realize the function of absorbing the impact force, the arc-shaped flow guide buffer frame 26 will guide the buffered liquid to the side of the buffer resistance fin 13, and the liquid will flow downward under the action of gravity after being buffered by the buffer resistance fin 13, and then can flow out to the screen plate and the rear screen box through the inner cavity of the water outlet groove 141.

[0030] The above examples are only used to illustrate the technical solutions of the present application, and not to limit them.

Claims

1. A hydrocyclone underflow buffer pressure reducer, comprising a buffer pressure reducer chamber (1), characterized in that: A connecting arm (11) is fixedly installed on the outer wall of the buffer depressurization chamber (1). A strip groove (12) is opened on the side of the connecting arm (11). A buffer flow-blocking fin (13) is welded on the inner wall of the buffer depressurization chamber (1). A base plate (14) is fixedly installed at the bottom of the buffer depressurization chamber (1). A high-efficiency buffer mechanism (2) located in the inner cavity of the buffer depressurization chamber (1) is provided on the top of the base plate (14).

2. The hydrocyclone underflow buffer pressure reducer according to claim 1, characterized in that: A water outlet groove (141) is provided at the center of the top of the base plate (14), and a connecting frame (142) is movably inserted into the inner cavity of the water outlet groove (141). A notch is provided at the top of the connecting frame (142).

3. A hydrocyclone underflow buffer pressure reducer according to claim 2, characterized in that: The top of the plug-in frame (142) is fixedly connected to a lifting rod (143), and a baffle plate (144) is fixedly installed on the top of the lifting rod (143).

4. A hydrocyclone underflow buffer pressure reducer according to claim 1, characterized in that: The high-efficiency buffer mechanism (2) includes a positioning frame (21), which is fixedly installed on the top of the base plate (14). A positioning plate (23) is movably inserted into the inner cavity of the positioning frame (21), and a positioning bolt (22) is threadedly connected to the outer wall of the positioning frame (21). The threaded end of the positioning bolt (22) is movably connected to the side of the positioning plate (23).

5. A hydrocyclone underflow buffer pressure reducer according to claim 4, characterized in that: A hollow cylinder (24) is fixedly installed on the top of the positioning plate (23). A limiting inner rod (25) is welded between the top and bottom of the inner wall of the hollow cylinder (24). A sliding plate (251) is slidably connected to the outer wall of the limiting inner rod (25).

6. A hydrocyclone underflow buffer pressure reducer according to claim 5, characterized in that: An elastic element (252) is fixedly installed at the bottom of the sliding plate (251). The bottom of the elastic element (252) is fixedly connected to the bottom of the inner wall of the hollow cylinder (24). A limiting ring (253) is movably connected to the top of the sliding plate (251). The limiting ring (253) is welded to the inner wall of the hollow cylinder (24). A through hole (254) is opened at the top of the sliding plate (251).

7. A hydrocyclone underflow buffer pressure reducer according to claim 6, characterized in that: A buffer shaft (255) is fixedly installed on the top of the sliding plate (251). The top of the buffer shaft (255) extends to the top of the hollow cylinder (24) and is fixedly connected to an arc-shaped flow guide buffer frame (26). A protruding ring (256) is fixedly connected to the top of the hollow cylinder (24). A sealing ring is fixedly connected to the inner wall of the protruding ring (256). The inner wall of the sealing ring is movably connected to the outer wall of the buffer shaft (255).

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