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Slurry pipeline conveying system for controlling accelerated flow and accelerated flow control method

A technology for pipeline transportation and control methods, applied in pipeline systems, gas/liquid distribution and storage, mechanical equipment, etc., can solve the problems of needing to check from time to time, increasing high-pressure dangerous sources, and low loss along the way. The effect of reducing equipment power consumption, simple and convenient operation, and reducing equipment wear and tear

Inactive Publication Date: 2015-01-28
YUNNAN DAHONGSHAN PIPELINE
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  • Abstract
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AI Technical Summary

Problems solved by technology

In the prior art, the method of controlling the accelerated flow brought by the paddle head is mainly to increase the inlet pressure by starting the pressurized main pump of the subsequent pumping station in time, forcing the pressure at the high point where the paddle head is located to increase, so that To offset the negative pressure generated by the paddle head at the high point and prevent the generation of accelerated flow, this accelerated flow control scheme has many defects: 1. It requires multi-point monitoring, and multiple devices participate in the control, and the operation is cumbersome; 2. Since the subsequent pipeline is The loss of water along the way is not high, which increases the cost of starting the pressurized main pump of the subsequent pumping station in time; 3. The personnel of the pumping station need to check the operation of each equipment from time to time, and because the inlet pressure rises, the high-pressure hazard source Points increase, bringing greater security risks

Method used

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  • Slurry pipeline conveying system for controlling accelerated flow and accelerated flow control method

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Embodiment Construction

[0026] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can understand the solution of the present invention more clearly, but the protection scope of the present invention is not limited thereby.

[0027] First describe the overall structure of the slurry pipeline delivery system for controlling the accelerated flow of the present invention, as shown in the attached figure 1As shown, the whole includes the fore-stage pumping station A, the accelerated flow monitoring station B, the post-stage pumping station C, the dehydration workshop D and the main pipeline E for slurry transportation, and the fore-stage pumping station A includes the stirring tank 1, the feeding pump 2 and the The backstage pumping station pressurizes the main pump 3, the bottom outlet of the mixing tank 1 is connected to the feed pump 2, and the pumping outlet of the feed pump 2 is connected to ...

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Abstract

The invention provides a slurry pipeline conveying system for controlling accelerated flow and an accelerated flow control method of the slurry pipeline conveying system. By aiming at a slurry conveying pipeline system with a pipeline fully filled with water media under the initial condition, on the basis of the relationship between the pipeline linear loss and the pipeline distance length, a accelerated flow monitoring station used for monitoring a slurry head is arranged in a specific position, in addition, a by-pass pipeline is introduced in a back-stage pump station main pipe, when the accelerated flow monitoring station monitors the slurry head, a by-pass pipeline valve is opened, medium water in a slurry conveying main pipeline is conveyed to a dewatering workshop through the by-pass pipeline, the long-distance linear loss is effectively utilized for counteracting the accelerated flow negative pressure of the accelerated flow monitoring station, the effect of effectively controlling the accelerated flow without starting pressurizing main pump equipment of a back-stage pump station is achieved, various defects of a traditional accelerated flow control mode adopting a pressurizing main pump of the back-stage pump station for improving the pressure are overcome, the slurry pipeline abrasion is reduced, and the operation efficiency and the service life of the slurry pipeline conveying system are respectively improved and prolonged.

Description

technical field [0001] The invention relates to long-distance slurry pipeline delivery technology, in particular to a slurry pipeline delivery system for controlling accelerated flow and an accelerated flow control method. Background technique [0002] In the long-distance slurry pipeline transportation technology, the special geographical topography makes the altitude difference along the pipeline larger, which increases the difficulty of iron concentrate slurry pipeline transportation. The pressure and velocity of different locations have great changes. When the medium with large specific gravity (iron concentrate) pushes the medium with light specific gravity (water) (commonly known as the paddle head) to go from high altitude to low, it will produce accelerated flow. , when the medium with light specific gravity pushes the medium with large specific gravity (commonly known as the tail) from low to high, overpressure will occur. In practice, the accelerated flow generate...

Claims

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Application Information

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IPC IPC(8): F17D1/14F17D3/01
Inventor 普光跃瞿承中白建民潘春雷郑晓聪孔垂洪
Owner YUNNAN DAHONGSHAN PIPELINE
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