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Check valve of marine mineral lift pipe

A check valve and riser technology, applied in the field of marine minerals, can solve the problems of increasing the lifting pressure of the lift pump, returning the mineral mixed liquid, reducing the pumping efficiency of marine minerals, etc., achieving pressure reduction, strong engineering practicability, and lifting The effect of mining efficiency

Inactive Publication Date: 2018-06-29
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the riser is a mixture of minerals and seawater, the mineral particle size is large, and the diameter of the riser is easy to cause the mineral mixture to flow back, increasing the lifting pressure of the lift pump and reducing the pumping efficiency of marine minerals

Method used

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  • Check valve of marine mineral lift pipe
  • Check valve of marine mineral lift pipe
  • Check valve of marine mineral lift pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] The present invention will be further described below in conjunction with the accompanying drawings.

[0013] Such as Figure 1~Figure 3 As shown, a marine mineral riser check valve is composed of a riser 1, an arresting ball head 2, a counterweight ring 3, a check valve blade 4, a blade rotating shaft 5, a fixed ring 6, and a fixed grid 7; The check valve blade 4 can rotate 360° around the blade rotation axis 5; the fixed ring 6 and the fixed grid 7 are integrally welded with the lifting rod.

[0014] When using, first of all, before installing the marine mineral riser check valve, carefully check whether there is any dirt attached to the inner cavity of the check valve and the check valve blade 4, and scrub the check valve blade 4 and the fixing ring 6 and the fixing ring. Grille 7; Then, install the check valve. The installation position of the check valve is not limited, but it is usually installed in vertical or inclined pipelines. Special attention should be paid...

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Abstract

The invention relates to a check valve of a marine mineral lift pipe, and belongs to the field of marine mineral machines. The marine mineral lift pipe is designed to solve the problems that as mineral grains in the marine mineral lift pipe are large and are likely to be mixed with seawater to cause backflow, the pressure of a lift pump is high, and the engineering efficiency is low. The check valve of the marine mineral lift pipe is composed of the lift pipe, a stop ball, a balance weight ring, check valve blades, a blade rotating shaft, a fixing ring and a fixing grid. The check valve bladescan rotate by 360 degrees around the blade rotating shaft. The fixing ring and the fixing grid are both integrally welded to a lift rod. The check valve of the marine mineral lift pipe is simple in structure, convenient to manufacture and high in engineering practicability.

Description

technical field [0001] The invention belongs to the technical field of marine minerals, in particular to a check valve for a riser, in particular to a check valve for a riser of marine minerals. Background technique [0002] With the depletion of land resources, deep-sea development has become an important strategic goal of the world's major powers, and it is of great significance to achieve high-efficiency and low-energy consumption of deep-sea minerals. The lower end of the marine riser has a lift pump, and the upper part is linked to a mineral collection ship. Since the riser is a mixture of minerals and seawater, the particle size of the minerals is large, and the diameter of the riser is large, it is easy to cause the mineral mixture to flow back, increase the lifting pressure of the lift pump, and reduce the pumping efficiency of marine minerals. Therefore, in order to improve the mining efficiency of marine minerals and reduce the pressure of the lift pump without bl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/00F16K31/12
CPCF16K15/00F16K31/12
Inventor 孔德森白翼飞邓美旭蒋宗南
Owner SHANDONG UNIV OF SCI & TECH