Steam, water and fly ash separating device and separating method

Abstract

The invention discloses a steam, water and fly ash separating device and a separating method. The separating device comprises a separator, wherein the separator is vertically arranged; the middle partof the separator is of a cylinder structure; both ends of the separator are respectively of a semispherical seal head structure; the upper end of the separator is provided with a steam outlet, the lower end of the separator is provided with a solid outlet, the middle upper part of the separator is provided with a mixture inlet, a heating spiral pipe is arranged at the middle upper part of the interior of the separator, and the mixture inlet is connected with the heating spiral pipe. The separating device has the advantage that the steam, water and fly ash three-phase mixture is converted intothe solid-liquid phase and the gas phase by the separator, the solid and liquid phase is reserved in the separator, the gas phase is sent into the steam and water separating device to separate watersteam and coalbed gas, and the solid and liquid phase in the separator is separated under the gravity separating function, so as to complete the separating, collecting and reutilization of steam, water and fly ash.

Description

technical field [0001] The invention relates to the technical field of coal bed gas and coal mining, in particular to a gas, water and coal powder separation device and separation method. Background technique [0002] China's tectonic coal is widely developed and tectonic coal-bed methane resources are abundant. As a clean energy source, coal-bed methane has attracted widespread attention. Co-production of coalbed methane and coal by in-situ coalbed methane wells on the ground can be used as an important means for the development of structural coalbed methane. However, the coal particles and water produced during the drilling of coalbed methane wells are in a mixture state, making it difficult to effectively separate and collect gas, water, and coal, and part of the coalbed methane contained in the coal particles has been desorbed and is in the state of free gas, and part of it is still present in the coal particles. The interior has not yet desorbed, increasing the difficu...

AI Technical Summary

Problems solved by technology

However, the separated substances are mainly large-density sand particles, light-density oil bodies and associated gas, while the separation of relatively low-density small-particle coal powder, water and coalbed methane is difficult to achieve

Although the widely used coal washing equipment can separate the coal-water mixture, it cannot separate the coalbed methane

The gas and coal-water separation devices and methods commonly used in coal mines are mainly for the separation of the injected gas and coal-water, and cannot solve the problem of separating the gas-water-coal mixture containing undesorbed coalbed methane.

Images