Hydrocyclone for separating tunnel silt

Abstract

The utility model relates to the technical field of silt separation, provide a kind of tunnel silt separation's hydraulic cyclone, comprising: hollow cylinder, the inner wall of the upper end in the hollow cylinder is fixedly installed with helical blade, the outer surface of the upper end of the hollow cylinder is fixed feed pipe, further comprising: baffle, fixedly installed in the outer surface of the helical blade upper end;Silt-containing liquid enters the inside of hollow cylinder by feed pipe, the upper end in the inside of hollow cylinder is provided with helical blade, helical blade is fixedly installed on the inner wall of hollow cylinder, liquid can improve the intensity of rotational motion by helical blade, improve centrifugal force, so that silt in liquid is thrown to the inner wall of hollow cylinder, along the inner wall and move to the inside of cylinder, discharge by conical discharge pipe, the upper end of helical blade is fixedly installed with baffle, prevent liquid rotational motion when affecting the entry of silt liquid in feed pipe interior, improve the rotational intensity of silt liquid.

Description

Technical Field

[0001] This utility model relates to the field of sediment separation technology, and in particular to a hydrocyclone for sediment separation in tunnels. Background Technology

[0002] Hydrocyclones are devices that use centrifugal force to separate or classify solids and liquids, and are widely used in various industries such as mining, chemical, environmental protection, and food processing. In highway tunnel construction, hydrocyclones are often used to treat construction wastewater inside the tunnel, so as to achieve the discharge of wastewater or to provide conditions for subsequent advanced treatment.

[0003] However, the use of existing hydrocyclones in tunnels still faces several challenges: First, liquids containing silt enter the hydrocyclone through the inlet. Due to the inlet design, the liquid enters tangentially, creating a rotational motion. However, the upper part of the hydrocyclone's interior is usually smooth, making the rotational motion caused by the silt-containing liquid unstable. This reduces the intensity of the rotation, resulting in a smaller centrifugal force that is not conducive to throwing particles against the inner wall of the hydrocyclone, thus reducing the separation of silt and liquid. Second, most hydrocyclones have fixed discharge ports, which are fixedly connected to the hydrocyclone. This makes it difficult to adjust the size according to the concentration of silt, easily causing blockage at the discharge port and further reducing the efficiency of silt separation. Summary of the Invention

[0004] The purpose of this invention is to solve the technical problems in the prior art where liquid containing silt enters the hydrocyclone through the inlet, and due to the inlet design, the liquid enters the hydrocyclone tangentially, thereby reducing the separation of silt and liquid. In addition, most hydrocyclones have a fixed discharge port size, which is not convenient to adjust according to the concentration of silt and is prone to clogging.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A hydrocyclone for separating sediment in tunnels includes: a hollow cylinder, on which helical blades are fixedly installed on the inner wall at the upper end; a feed pipe is fixed to the outer surface of the hollow cylinder near the upper end; and further includes:

[0007] A baffle plate is fixedly installed on the upper surface of the spiral blade near the upper end;

[0008] A cylindrical tube is fixedly installed at the bottom of the hollow cylinder. Multiple connecting rods are fixedly installed inside the cylindrical tube, and a conical column is fixedly installed at the center of the multiple connecting rods. The conical column is fixedly embedded in the center of the inside of the cylindrical tube.

[0009] Preferably, a connecting plate is fixedly installed at the lower end of the outer surface of the cylinder, and a connecting shaft is movably embedded on one side of the connecting plate.

[0010] The technical advantage of adopting the above-mentioned further solution is that the connecting plate facilitates the installation of the connecting shaft.

[0011] Preferably, a cross plate is fixedly installed at the bottom of the connecting shaft, and a tapered discharge pipe is fixedly installed on one side of the cross plate.

[0012] The technical effect of adopting the above-mentioned further solution is that the connecting shaft drives the cross plate to rotate, which can move different conical discharge pipes to the lower end of the cylinder, and different conical discharge pipes can be replaced according to the concentration of the liquid.

[0013] Preferably, the outer surface of each of the multiple tapered discharge pipes is provided with a threaded groove.

[0014] The technical effect of adopting the above-mentioned further solution is that the threaded collar is threaded on the outer surface of the threaded groove, connecting the tapered discharge pipe and the cylinder together.

[0015] Preferably, a sealing gasket is fixedly installed on the top of each of the plurality of conical discharge pipes.

[0016] The technical effect of adopting the above-mentioned further solution is that the sealing gasket improves the sealing performance of the connection and prevents leakage.

[0017] Preferably, a threaded collar is movably fitted onto the outer surface of the cylinder.

[0018] The technical effect of adopting the above-mentioned further solution is that the rotating threaded collar is installed on the threaded groove, so that the tapered discharge pipe is connected to the cylinder.

[0019] Preferably, an overflow pipe is fixedly installed on the top of the hollow cylinder.

[0020] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0021] (1) In the hydrocyclone for separating mud and sand in this utility model, the liquid containing mud and sand enters the interior of a hollow cylinder through the feed pipe. The upper end of the interior of the hollow cylinder is provided with a spiral blade. The spiral blade is fixedly installed on the inner wall of the hollow cylinder. The liquid can increase the intensity of rotational motion by passing through the spiral blade, thereby increasing the centrifugal force, so that the mud and sand in the liquid are thrown onto the inner wall of the hollow cylinder, move down along the inner wall into the interior of the cylinder, and then be discharged through the conical discharge pipe. The upper end of the spiral blade is fixedly installed with a baffle plate to prevent the liquid from affecting the entry of mud and sand liquid inside the feed pipe when rotating, and to better improve the rotation intensity of mud and sand liquid. The interior of the cylinder is fixedly installed with a conical column through multiple connecting rods. The conical column can reduce the diameter inside the cylinder. The diameter is reduced, the rotation speed of the liquid increases, further enhancing the centrifugal force and promoting solid-liquid separation.

[0022] (2) The hydrocyclone for separating mud and sand in the tunnel in this utility model can discharge the separated liquid through the overflow pipe. Different conical discharge pipes can be adjusted and replaced through the connecting shaft. The multiple conical discharge pipes have different sizes, so they can be replaced according to the concentration of the liquid. The conical discharge pipe fits into the bottom of the cylinder. Then, the threaded collar is rotated and installed on the threaded groove to connect the conical discharge pipe to the cylinder. The outer surface of the conical discharge pipe is also provided with a sealing gasket to better improve the sealing of the connection and prevent leakage. Attached Figure Description

[0023] Figure 1 This invention presents a schematic diagram of the structure of a hydrocyclone for separating sediment in tunnels.

[0024] Figure 2 This utility model presents a side view of the hydrocyclone for separating sediment in tunnels.

[0025] Figure 3 This invention presents an exploded structural diagram of a hydrocyclone for separating sediment in tunnels.

[0026] Figure 4 A cross-sectional structural schematic diagram of the hydrocyclone for separating sediment in tunnels, as proposed in this utility model.

[0027] Legend:

[0028] 1. Hollow cylinder; 101. Feed pipe; 102. Overflow pipe; 103. Cylindrical tube; 104. Threaded collar; 105. Conical discharge pipe; 106. Threaded groove; 107. Cross plate; 108. Connecting shaft; 109. Connecting plate; 110. Helical blade; 111. Baffle plate; 112. Connecting rod; 113. Conical column; 114. Sealing gasket. Detailed Implementation

[0029] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0031] In the following embodiments, the terms "upper" and "lower" refer to the orientation relative to the working state of the hydrocyclone. When the hydrocyclone is in operation, the central axis of its hollow cylinder is set in a basically vertical direction.

[0032] Example 1, as Figure 1-4 As shown, this utility model provides a hydrocyclone for separating sediment in tunnels, comprising: a hollow cylinder 1, with a spiral blade 110 fixedly installed on the inner wall of the upper end of the hollow cylinder 1, and a feed pipe 101 fixedly installed on the outer surface of the hollow cylinder 1 near the upper end, the feed pipe 101 being arranged substantially tangentially along the cylinder wall of the hollow cylinder 1. The hydrocyclone also includes: a baffle plate 111 fixedly installed on the outer surface of the spiral blade 110 near the upper end; a cylinder 103 fixedly installed at the bottom of the hollow cylinder 1, with multiple connecting rods 112 fixedly installed inside the cylinder 103, and a conical column 113 fixedly installed at the center of the multiple connecting rods 112, the conical column 113 being fixedly embedded in the center of the inside of the cylinder 103; and a connecting plate 109 fixedly installed at the lower end of the outer surface of the cylinder 103, with a connecting shaft 108 movably embedded on one side of the connecting plate 109.

[0033] In this embodiment, liquid containing silt enters the interior of hollow cylinder 1 through feed pipe 101. A spiral blade 110 is installed at the upper end of the interior of hollow cylinder 1. The spiral blade 110 is fixedly installed on the inner wall of hollow cylinder 1. The liquid passing through the spiral blade 110 increases the intensity of rotational motion, thereby increasing centrifugal force. This causes the silt in the liquid to be thrown against the inner wall of hollow cylinder 1, moving down along the inner wall into the interior of cylinder 103, and then discharged through conical discharge pipe 105. A baffle plate 111 is fixedly installed at the upper end of the spiral blade 110 to prevent the liquid's rotational motion from affecting the entry of silt liquid into feed pipe 101, further improving the rotational intensity of the silt liquid. A conical column 113 is fixedly installed inside cylinder 103 through multiple connecting rods 112. The conical column 113 reduces the space inside cylinder 103. With reduced space, the rotational speed of the liquid increases, further enhancing centrifugal force and promoting solid-liquid separation.

[0034] Example 2, as Figure 1-4 As shown, a cross plate 107 is fixedly installed at the bottom of the connecting shaft 108, and a tapered discharge pipe 105 is fixedly installed on one side of the cross plate 107; threaded grooves 106 are opened on the outer surface of the multiple tapered discharge pipes 105; sealing gaskets 114 are fixedly installed on the top of the multiple tapered discharge pipes 105; a threaded collar 104 is movably fitted on the outer surface of the cylinder 103; and an overflow pipe 102 is fixedly installed on the top of the hollow cylinder 1.

[0035] In this embodiment, the overflow pipe 102 at the top can discharge the separated liquid. Different conical discharge pipes 105 can be adjusted and replaced through the connecting shaft 108. The multiple conical discharge pipes 105 have different sizes, so they can be replaced according to the concentration of the liquid. The conical discharge pipe 105 fits into the bottom of the cylinder 103. Then, the threaded collar 104 is rotated and installed on the threaded groove 106 to connect the conical discharge pipe 105 to the cylinder 103. A sealing gasket 114 is also provided on the outer surface of the conical discharge pipe 105 to better improve the sealing of the connection and prevent leakage.

[0036] The working process of the hydrocyclone used for sediment separation in this embodiment is as follows:

[0037] After the hydrocyclone is turned on, the liquid containing silt enters the hollow cylinder 1 through the feed pipe 101 and rotates at high speed along the spiral blades 110. Under the action of centrifugal force, the silt in the liquid separates from the liquid and moves downward under the action of gravity, eventually being discharged through the conical discharge pipe 105. The liquid is mainly discharged through the overflow pipe 102 at the top. When the hydrocyclone is used to treat wastewater with large fluctuations in particulate matter concentration and particle size, such as tunnel construction wastewater, the conical discharge pipes 105 of different sizes can be adjusted and replaced. For wastewater with small particle size and mainly composed of mud, a conical discharge pipe with a longer axial length can be used to promote the sedimentation of particles; for wastewater containing large sand and gravel particles, a conical discharge pipe with a shorter axial length can be used to improve the discharge efficiency of solid particles.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A hydrocyclone for separating sediment in tunnels, comprising: A hollow cylinder (1), wherein a helical blade (110) is fixedly installed on the inner wall of the upper end of the hollow cylinder (1), and a feed pipe (101) is fixed on the outer surface of the hollow cylinder (1) near the upper end, characterized in that it further includes: A baffle plate (111) is fixedly installed on the upper surface of the spiral blade (110) near the upper end; A cylindrical tube (103) is fixedly installed at the bottom of the hollow cylindrical body (1). Multiple connecting rods (112) are fixedly installed inside the cylindrical tube (103). A conical column (113) is fixedly installed at the center of the multiple connecting rods (112). The conical column (113) is fixedly embedded in the center of the inside of the cylindrical tube (103).

2. The hydrocyclone for separating sediment in tunnels according to claim 1, characterized in that: A connecting plate (109) is fixedly installed at the lower end of the outer surface of the cylinder (103), and a connecting shaft (108) is movably embedded on one side of the connecting plate (109).

3. The hydrocyclone for separating sediment in tunnels according to claim 2, characterized in that: A cross plate (107) is fixedly installed at the bottom of the connecting shaft (108), and a tapered discharge pipe (105) is fixedly installed on one side of the cross plate (107).

4. The hydrocyclone for separating sediment in tunnels according to claim 3, characterized in that: The outer surfaces of the multiple tapered discharge pipes (105) are provided with threaded grooves (106).

5. The hydrocyclone for separating sediment in tunnels according to claim 3, characterized in that: Each of the tapered discharge pipes (105) is fixedly fitted with a sealing gasket (114) at its top.

6. The hydrocyclone for separating sediment in tunnels according to claim 1, characterized in that: The outer surface of the cylinder (103) is movably fitted with a threaded collar (104).

7. The hydrocyclone for separating sediment in tunnels according to claim 1, characterized in that: An overflow pipe (102) is fixedly installed on the top of the hollow cylinder (1).

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