Supercritical carbon dioxide injection device

Abstract

The invention discloses a supercritical carbon dioxide injection device. The device comprises a direction-changing flow guide component, a first orientation component and a second orientation component, wherein the first orientation component is arranged in the direction-changing flow guide component, and the second orientation component is arranged in the direction-changing flow guide component. According to the device, wall breaking and rock crushing operation is conducted by utilizing the impact force of high-pressure fluid, the rock strength can be reduced through supercritical carbon dioxide jet injection, the rock crushing efficiency is far higher than that of water jet rock crushing efficiency, and in the supercritical carbon dioxide jet rock crushing process, an operator can control a first electromagnet, a second electromagnet, a third electromagnet and a fourth electromagnet through a PLC, s so that an injector head conducts jet rock crushing in different directions, and the crushing efficiency is greatly improved; and a sliding shielding shell is designed, jet supercritical carbon dioxide and rock particles subjected to impact crushing can be isolated and shielded in multiple directions, and the situation that nearby workers are accidentally injured by sputtering can be avoided.

Description

technical field [0001] The invention relates to the field of mechanical technology, in particular to a supercritical carbon dioxide injection device. Background technique [0002] Supercritical carbon dioxide is a carbon dioxide fluid maintained above the critical temperature and critical pressure. Supercritical carbon dioxide has the advantages of non-toxicity, low price, wide range of sources, low critical temperature, and chemical inertness. It is one of the commonly used supercritical fluids in industry. It is widely used as a solvent for synthetic reactions and as an extractant for extracting natural products. In industry, the efficiency of supercritical carbon dioxide for high-pressure impact to break rocks is higher than that of water for high-pressure impact to achieve rock breakage, but the existing injection devices can only For straight jet impact, it is necessary to adjust the impact direction of the fluid in order to improve the crushing efficiency. It is diffic...

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Problems solved by technology

[0002] Supercritical carbon dioxide is a carbon dioxide fluid maintained above the critical temperature and critical pressure. Supercritical carbon dioxide has the advantages of non-toxicity, low price, wide range of sources, low critical temperature, and chemical inertness. It is one of the commonly used supercritical fluids in industry. It is widely used as a solvent for synthetic reactions and as an extractant for extracting natural products. In industry, the efficiency of supercritical carbon dioxide for high-pressure impact to break rocks is higher than that of water for high-pressure impact to achieve rock breakage, but the existing injection devices can only For straight jet impact, it is necessary to adjust the impact direction of the fluid in order to improve the crushing efficiency. It is difficult to adjust and it is extremely laborious. In addition, during the impact crushing operation, the splashing of the broken rock and fluid will cause accidental injury to the operators on the crushing site. So people need a supercritical carbon dioxide injection device to solve the problems in the prior art

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