Airflow reversing mechanism of vertical coal ventilation air methane oxidizing device
A technology of oxidation device and reversing mechanism, which is applied to incinerators, chemical instruments and methods, combustion methods, etc., can solve the problems of inconvenient installation and maintenance, poor work reliability, large amount of exhaust air escape, etc., and achieves compact structure and high working efficiency. Reliable, Escape-Reducing Effect
Inactive Publication Date: 2012-05-23
SHANDONG UNIV OF TECH
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Problems solved by technology
However, this kind of reversing equipment has disadvantages such as bulky size, poor sealing, large exhaust air escape during reversing, poor working reliability, and inconvenient installation and maintenance.
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[0017] exist Figure 1~3 In the shown embodiment: the exhaust valve chamber 6 and the intake valve chamber 14 are both located between the upper chamber 13 and the lower chamber 1, and communicate with the upper chamber 13 and the lower chamber 1 through the connecting pipe 4 respectively; The connecting pipe 4 connecting the upper and lower end surfaces of the exhaust valve chamber 6 is located on the same straight line, and the connecting pipe 4 connecting the upper and lower end surfaces of the intake valve chamber 14 is also located on the same straight line. Valve seats 5 are provided at the joints of the air valve chamber 14; the upper end surface of the upper cavity 13 located above the center of the connecting pipe 4 is provided with a guide seal sleeve 9, and the piston rods of the two cylinders 12 fixed on the two cylinder seats 10 The lower end of the valve stem 8 is fixedly connected to the upper end of the valve stem 8 through the threaded connection sleeve 11, an...
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The invention relates to an airflow reversing mechanism of a vertical coal ventilation air methane oxidizing device, which is characterized by comprising an upper cavity, a lower cavity, connecting pipes, an outlet valve chamber and an inlet valve chamber, wherein the outlet valve chamber and the inlet valve chamber are positioned between the upper cavity and the lower cavity; the outlet valve chamber and the inlet valve chamber are respectively communicated with the upper cavity and the lower cavity through the connecting pipes; the communicating position of the connecting pipe and the outlet valve chamber and the communicating position of the connecting pipe and the inlet valve chamber are provided with valve seats; the upper end surface of the upper cavity, which is positioned above the center of the connecting pipe, is provided with a guide seal cover; the lower ends of piston rods of two air cylinders fixed on two air cylinder seats are fixedly connected with the upper ends of two valve rods by a threaded connection cover, the two valve rods sequentially pass through the guide seal cover, the upper cavity and the connecting pipe and respectively extend into the outlet valve chamber and the inlet valve chamber, and the bottoms of the two valve rods are fixedly connected with a valve plate. When the valve plate moves upwards along with the valve rods, the valve plate blocksthe valve seat of the upper end surface, and otherwise, the valve plate blocks the valve seat of a lower end surface. The invention has the advantages of compact structure, good seal effect, even sirsupply, convenient installation and reliable operation.
Description
technical field [0001] The invention relates to a gas flow reversing mechanism of a vertical coal mine exhaust air gas oxidation device, and belongs to the technical field of ultra-low concentration methane thermal countercurrent oxidation and low-density energy recovery. Background technique [0002] The gas concentration in coal mine exhaust air is generally less than 1%, and it is difficult to use traditional burners to burn directly without auxiliary fuel. Coal mine exhaust air heat countercurrent oxidation device can oxidize the gas in the exhaust air into carbon dioxide and water, realize emission reduction, and recover the heat therein. The depleted gas entering the oxidation bed of the oxidation device absorbs heat from the heat storage ceramics and heats up, oxidizes and releases heat in the high temperature zone in the middle of the oxidation bed, and transfers the heat to the honeycomb ceramics before being discharged. The key to this technology is to constantly ...
Claims
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IPC IPC(8): B01D53/76F23G7/06
Inventor 刘永启刘瑞祥李宗立高振强郑斌孟建梁杰辉
Owner SHANDONG UNIV OF TECH