Cyclone for reducing fine fraction content of settled sand through tangential pneumatic control

Abstract

The utility model relates to a cyclone capable of reducing the fine fraction content of settled sand through tangential pneumatic control. The cyclone comprises a cyclone body, an overflow pipe is installed at the top of the cyclone body, a feeding port is communicated with the upper portion of the outer side wall of the cyclone body, a pneumatic mechanism is installed on the cyclone body, and a desilting port is installed at the lower end of the cyclone body. The pneumatic mechanism comprises a circular-truncated-cone-shaped shell, the circular-truncated-cone-shaped shell is coaxially and fixedly connected to the cyclone body, a plurality of air inlet pipes are evenly distributed on the outer wall of the circular-truncated-cone-shaped shell and communicated with the outer wall of the circular-truncated-cone-shaped shell in the tangential direction, the multiple air inlet pipes are communicated with a circular-ring air supply pipe, and the circular-ring air supply pipe is communicated with an air source through an air connecting pipe. The circular ring air supply pipe and the circular truncated cone annular shell are coaxially arranged; and the gas receiving pipe is tangentially communicated with the circular ring gas supply pipe. The cyclone is simple in structure, air flow tangentially flows into the cyclone body to control the content of fine fraction of settled sand, the concentration of the settled sand does not need to be worried about, time and labor are saved, the manufacturing cost is low, and the cost for controlling and reducing the content of the fine fraction of the settled sand is low.

Description

Technical Field

[0001] This utility model belongs to the field of hydrocyclones, and in particular relates to a hydrocyclone with tangential pneumatic control to reduce the content of fine particles in the sediment. Background Technology

[0002] The hydrocyclone has an overflow port at the top and a sand-collecting port at the bottom. When the hydrocyclone is running, a high-speed rotating flow field is generated inside, and the resulting negative pressure creates a pressure difference between the inside and outside of the hydrocyclone. Since both the overflow port and the sand-collecting port are connected to the atmosphere, air is drawn in through these two outlets, thus forming an air column that is connected vertically during normal operation of the hydrocyclone.

[0003] The fine particle content at the hydrocyclone underflow outlet needs to be controlled according to production requirements. Currently, water flushing is used to control the fine particle content in the underflow, but this method affects the underflow concentration and makes it difficult to control, resulting in poor performance in controlling the fine particle content. Therefore, we propose a hydrocyclone with tangential pneumatic control to reduce the fine particle content in the underflow. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a hydrocyclone with tangential pneumatic control to reduce the content of fine particles in the sediment, thereby overcoming the defects existing in the prior art.

[0005] To achieve the aforementioned objectives of this utility model, the technical solution adopted is as follows:

[0006] A hydrocyclone for reducing the fine particle content of sediment by tangential pneumatic control includes a hydrocyclone body, an overflow pipe installed at the top of the hydrocyclone body, a feed inlet connected to the upper part of the outer side wall of the hydrocyclone body, a pneumatic mechanism installed on the hydrocyclone body, and a sedimentation port installed at the lower end of the hydrocyclone body.

[0007] The pneumatic mechanism includes a frustum-shaped annular shell, which is coaxially fixed to the hydrocyclone body. Multiple air inlet pipes are evenly distributed and tangentially connected on the outer wall of the frustum-shaped annular shell. The multiple air inlet pipes are connected to a circular air supply pipe, which is connected to an air source through an air inlet pipe.

[0008] As a further improvement of this utility model, the circular air supply pipe is coaxially arranged with the frustum-shaped outer shell;

[0009] The air inlet pipe is tangentially connected to the circular air supply pipe.

[0010] As a further improvement of this utility model, an electric valve is installed on the air inlet pipe, and the electric valve is electrically connected to the control cabinet.

[0011] As a further improvement of this utility model, the end of the intake pipe that connects to the frustum-shaped outer shell is tangent to the inner wall of the frustum-shaped outer shell, and the angle between the direction of gas flow at the other end of the intake pipe and the tangent of the annular air supply pipe at the connection position with the intake pipe is less than 45°.

[0012] As a further improvement of this utility model, the number of air intake pipes is four.

[0013] As a further improvement of this utility model, the hydrocyclone body includes a large conical shell, a middle conical shell, and a small conical shell. The large conical shell, the middle conical shell, and the small conical shell are sequentially and coaxially fixedly connected, and the frustum-shaped annular shell is coaxially installed between the middle conical shell and the small conical shell.

[0014] The beneficial effects of this utility model are:

[0015] This utility model has a simple structure and reasonable design. It uses the tangential flow of airflow into the hydrocyclone body to control the content of fine particles in the sediment. There is no need to worry about the sediment concentration, saving time and effort, and the manufacturing cost is low. Controlling and reducing the content of fine particles in the sediment is also low-cost. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the pneumatic mechanism in this utility model. Detailed Implementation

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0021] Please refer to Figure 1-2A hydrocyclone for reducing the fine particle content of sediment by tangential pneumatic control includes a hydrocyclone body 1, which includes a large conical shell 11, a medium conical shell 12, and a small conical shell 13. The large conical shell 11, the medium conical shell 12, and the small conical shell 13 are coaxially fixedly connected in sequence. A frustum-shaped annular shell 41 is coaxially installed between the medium conical shell 12 and the small conical shell 13. An overflow pipe 2 is installed on the top of the hydrocyclone body 1. A feed inlet 3 is connected to the upper part of the outer side wall of the hydrocyclone body 1. A pneumatic mechanism 4 is installed on the hydrocyclone body 1. A sedimentation port 5 is installed at the lower end of the hydrocyclone body 1.

[0022] The pneumatic mechanism 4 includes a frustum-shaped annular shell 41, which is coaxially fixed to the hydrocyclone body 1. Four air inlet pipes 42 are evenly distributed and tangentially connected on the outer wall of the frustum-shaped annular shell 41. The four air inlet pipes 42 are connected to a circular air supply pipe 43, which is connected to an air source through an air inlet pipe 44.

[0023] The circular air supply pipe 43 is coaxially arranged with the frustum-shaped annular outer shell 41;

[0024] The air inlet pipe 44 is tangentially connected to the circular air supply pipe 43.

[0025] An electric valve 45 is installed on the air inlet pipe 44, and the electric valve 45 is electrically connected to the control cabinet.

[0026] The end of the intake pipe 42 that connects to the frustum-shaped outer shell 41 is tangent to the inner wall of the frustum-shaped outer shell 41, and the angle between the direction of gas flow at the other end of the intake pipe 42 and the tangent of the annular air supply pipe 43 at the connection position with the intake pipe 42 is less than 45°.

[0027] This device uses the tangential flow of airflow into the hydrocyclone body 1 to control the content of fine particles in the sediment. It detects the content of fine particles in the sediment and adjusts the control cabinet accordingly. The control cabinet controls the electric valve 45 to adjust the gas flow rate, thereby controlling the content of fine particles in the sediment.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, component disassembly or combination, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hydrocyclone for reducing the fine particle content of sediment using tangential pneumatic control, comprising a hydrocyclone body, an overflow pipe installed at the top of the hydrocyclone body, and a feed inlet connected to the upper part of the outer side wall of the hydrocyclone body, characterized in that, A pneumatic mechanism is installed on the hydrocyclone body, and a sand settling inlet is installed at the lower end of the hydrocyclone body. The pneumatic mechanism includes a frustum-shaped annular shell, which is coaxially fixed to the hydrocyclone body. Multiple air inlet pipes are evenly distributed and tangentially connected on the outer wall of the frustum-shaped annular shell. The multiple air inlet pipes are connected to a circular air supply pipe, which is connected to an air source through an air inlet pipe.

2. The hydrocyclone for reducing the fine particle content of sediment using tangential pneumatic control according to claim 1, characterized in that, The circular air supply pipe is coaxially arranged with the frustum-shaped outer shell. The air inlet pipe is tangentially connected to the circular air supply pipe.

3. A hydrocyclone for reducing the fine particle content of sediment using tangential pneumatic control according to claim 2, characterized in that, An electric valve is installed on the gas inlet pipe, and the electric valve is electrically connected to the control cabinet.

4. A hydrocyclone for reducing the fine particle content of sediment using tangential pneumatic control according to claim 2, characterized in that, The end of the intake pipe that connects to the frustum-shaped outer shell is tangent to the inner wall of the frustum-shaped outer shell, and the angle between the direction of gas flow at the other end of the intake pipe and the tangent of the annular air supply pipe at the connection point with the intake pipe is less than 45°.

5. A hydrocyclone for reducing the fine particle content of sediment using tangential pneumatic control according to claim 4, characterized in that, There are four air intake pipes.

6. A hydrocyclone for reducing the fine particle content of sediment using tangential pneumatic control according to claim 1, characterized in that, The hydrocyclone body includes a large conical shell, a middle conical shell, and a small conical shell. The large conical shell, the middle conical shell, and the small conical shell are fixedly connected coaxially in sequence, and a frustum-shaped annular shell is installed coaxially between the middle conical shell and the small conical shell.

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