With the rapid development of the chemical industry, the demand for adipic acid and cyclohexanol is increasing, and the corresponding emission of the main product nitrous oxide (N2O) is increasing.As the main greenhouse gas in the atmosphere, nitrous oxide (N2O) is subject to strict environmental protection requirements.Incineration, as the main method to treat N2O, is burned in the incineration window.The main incineration products are oxygen and nitrogen.Clean high temperature flue gas can generate middle and low pressure steam through heat exchanger and other equipment, making full use of heat energy and saving energy.Some studies suggest that the window for burning nitrous oxide (N2O) is 700 degrees Celsius.1300 degrees Celsius, but all things considered, the general requirement is to keep the temperature between 900 degrees Celsius.In the actual operation process, it is 1100℃.In this context, our company developed a high processing capacity, energy saving, decomposition effect of laughing gas incinerator burner.
The laughing gas incinerator consists of a first cylinder and a second cylinder, and the first cylinder is divided into a front cylinder and a back cylinder.The cylinder is processed by laughing gas tangential nozzle, and the edge of the second cylinder is processed by laughing gas multiple horizontal nozzles.The horizontal and tangential nozzles designed on the burner can well decompose nitrous oxide (N2O), and the oxygen generated after decomposition can be used as combustion oxidant, reducing air flow and saving energy.Nitrous oxide is divided into two parts, one connected to the combustion zone, the other to the incinerator, and the other to the high-temperature incinerator.Decomposition in temperature environment, combustion effect is better.The burner adopts waste gas incineration technology, especially a laughing gas incineration treatment technology.
The new technical solutions are as follows:
The laughing gas burner consists of a first cylinder and a second cylinder outside the first cylinder.The first cylinder is divided into front-end cylinder and back-end cylinder.The lower end of the cylinder is provided with combustion air outlet.The cylinder is provided with through hole along the direction of injection, and the middle through hole is processed into burner throat.The cylinder is secured with fuel gun and ignition gun.Air conditioning is installed at the upper end of the cylinder, and there are laughing gas tangential nozzles processed on the cylinder, including several laughing gas tangential nozzles.One end of each laughing gas tangential nozzle starts from the hole wall of the through hole and the other end leads to the laughing gas nozzle.The edge of the second cylinder is processed with multiple laughing gas horizontal nozzles, one end of each laughing gas horizontal nozzle leads to the laughing gas nozzle, and the other end leads to the laughing gas nozzle.Outside the gun.
In the above nitro incinerator, the outer side of the fuel gun is provided with flange and barrel body, the inner end of the fuel gun is fixed with a flame stabilizer towards the inner end of the burner, and the nozzle of the fuel gun is located at the throat of the burner.
A fire hole and a flame detector are arranged at the front end of the cylinder in the laughing gas incinerator.
In the laughing gas burner, the front end of the cylinder is fixed with an installation panel through which the fuel gun and the ignition gun are fixed.
In the laughing gas incinerator, the number of laughing gas horizontal nozzles can be 12 or 16.
In the nitrous oxide incinerator, the number of nitrous oxide tangential nozzles may be 12 or 16.
The beneficial effect is that N2O can be well decomposed by designing horizontal and tangential nitrous oxide nozzles on the burner, and the oxygen generated after incineration can be used as combustion supporting oxidant, reducing the amount of combustion supporting air and S.Save electricity;In addition, the point gun is set on the side of the fuel gun to ignite the fuel gun and long light;The laughing gas nozzle and the injector can be used to ignite the fuel gun, and the ignition gun is set outside the burner barrel body and connected with the incinerator.Nitrous oxide is divided into two parts.
