Roller pressing type natural gas hydrate sea surface smashing and decomposing equipment

Abstract

The invention provides roller pressing type natural gas hydrate sea surface smashing and decomposing equipment which is mainly composed of a lifting pipeline, a decomposition pool, a decomposition pool upper cover, a cylinder sieve, a coupler, a speed reducing motor, a gas output pipeline, a motor support, a material guide cylinder, a high-pressure roller milling machine, a sea water input pipeline, a tailing pipe and an ore pulp pump. The tail end of the lifting pipeline is connected in the cylinder sieve, in pulp flowing out of the lifting pipeline, small-particle mixed minerals flow out from sieve holes of the cylinder sieve and directly fall into the decomposition pool, and large-particle mixed minerals fall into the material guide cylinder from a discharging opening of the cylinder sieve, enter a roller below along the material guide cylinder to be crushed, and fall into the decomposition pool after being crushed. The sea water input pipeline provides warm shallow sea water to thedecomposition pool, and decomposition of hydrate is accelerated. Slag left after decomposition is discharged into sea water of the deep layer through the tailing pipe on the bottom of the decomposition pool, and natural gas generated by decomposition flows into collecting equipment from a gas output pipeline. According to the equipment, crushing is carried out firstly, then decomposition is carried out, the decomposition heat source comes from the surface sea water, and the equipment has the advantages of being fast in decomposition, high in efficiency and low in cost.

Description

technical field [0001] The invention relates to a roller press type natural gas hydrate sea surface crushing and decomposition equipment, which provides theoretical support for the exploitation and use of natural gas hydrate; the equipment particularly relates to a rolling crushing device, which improves the decomposition rate of natural gas hydrate and effectively It solves the problem that large particles are difficult to decompose. Background technique [0002] Energy is the basis for maintaining economic development; at present, with the depletion of traditional energy sources, countries around the world have to look for efficient and clean alternative energy sources; seabed natural gas hydrate has large energy reserves, high energy density, wide distribution and shallow burial, etc. With many advantages, it has been recognized as the most promising and ideal clean energy and alternative energy; about 27% of the land on the earth is a potential area where gas hydrate can...

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Problems solved by technology

[0005] However, there are very few existing studies on gas hydrate decomposition equipment on the sea surface; the traditional gas hydrate decomposition tank has a single function and cannot guarantee a fast and stable decomposition rate (the decomposition rate must keep up with the delivery rate of the hydrate collection device, otherwise it is prone to accumulation and blockage); cannot ensure full utilization of mixture particles containing natural gas hydrate (mixture particles with large particle size will easily wrap hydrate crystals in them, seawater is not easy to permeate, and hydrate is difficult to decompose); it is difficult to discharge minerals to In deep seawater (shallow seawater is full of sunlight, most marine organisms live in relatively shallow seawater, deep seawater has great sea pressure resistance, and it is difficult to drain into deep seawater directly by gravity, which will inevitably cause habitat for marine organisms land pollution)

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