Secondary filtering device for marsh gas purification

Abstract

The invention discloses a secondary filtering device for marsh gas purification. The secondary filtering device comprises a filtering tank, wherein the filtering tank is connected with a marsh gas collecting tank; marsh gas is collected and taken from the marsh gas collecting tank; the marsh gas is usually sucked out of the marsh gas collecting tank by a fan and is pumped into the filtering tank;the filtering tank comprises a tank body; a separation plate for separating the upper and lower parts of the tank body is arranged in the tank body; an opening is reserved in the middle of the separation plate; the bottom of the tank body is provided with a gas inlet cavity; a primary filtering chamber is arranged at the upper side of the gas inlet cavity; a secondary filtering chamber is arrangedabove the separation plate; a condensation drying chamber is arranged above the secondary filtering chamber; a vibration frame is also arranged at the inside. The secondary filtering device has the beneficial effects that the design is reasonable; the structure is simple; through the arrangement of the independent gas inlet cavity, the inlet gas is divided into two strands; through exhaust holesformed in a spiral gas inlet pipe, one strand of gas is exhausted and becomes gas in an irregular flow direction; the other strand of gas mutually collides and interferes to achieve a speed reductioneffect; natural clinoptilolite is arranged in a baffle plate as an adsorbent; the effect of primary purification and filtering on the marsh gas is achieved.

Description

[0001] This case is a divisional application. The invention name of the original application is: a biogas pretreatment device. The filing date of the original application is: 2016-01-28, and the application number of the original application is: 201610058081.X. technical field [0002] The invention relates to the field of development and utilization of biomass energy, in particular to a secondary filter device for biogas purification. Background technique [0003] Biogas is a combustible gas with high calorific value, the main component is methane (CH 4 ) and carbon dioxide (CO 2 ) and a small amount of nitrogen (N 2 ), hydrogen (H 2 ), oxygen (O 2 ), hydrogen sulfide (H 2 S) and other gases, in which the methane content is between 45% and 60%. Compared with other gases, biogas has better antiknock performance and is a good clean fuel. Traditionally, biogas is used for heating, cooking and lighting. With the continuous increase of biogas production, the medium and hig...

AI Technical Summary

Problems solved by technology

In addition, due to the working principle of the traditional new biogas pretreatment device, the gas needs to be processed repeatedly, resulting in a large total volume.

Images