10 results about "Tuyere" patented technology

The invention discloses a blast furnace stockline descending top temperature controlling and detonation preventing method. The method specifically comprises the steps that (1) a special furnace top atomized water injector is mounted, specifically, a purchased special furnace top atomized water injector is utilized for replacing a traditional water injecting pipe, and when being sprayed out of thefurnace top sprinkling atomized water injector, water is atomized to form water mist, wherein the diameter of water drops in the water mist is 10-20 [mu]m; and (2) N2 is sprayed and injected from a furnace body static pressure measuring hole and an air port coal lance, specially, before stockline descending, a pressure measurer is dismounted, an N2 spraying pipe is connected and communicates withan N2 pipe network of a blast furnace, and the air port coal lance stops spraying coal during stockline descending and only performs N2 spraying and injecting. By means of the method provided by the invention, the furnace top temperature decreasing effect can be improved, and in addition, the situation that the water drops have no time to vaporize and make direct contact with liquid slag iron canbe avoided; and furthermore, the method for spraying and injecting the N2 from the furnace body static pressure measuring hole and the air port coal lance is simple and feasible, the sprayed and injected N2 gas dilutes coal gas, it is guaranteed that the content of O2 in the coal gas meets standards while a large air capacity is maintained for descending the stockline, and the stockline descendingtime is shortened by around 15 h.

The inventive combustion method consists in: dividing a hearth into a fuel chamber and a combustion chamber; storing the main comburant in the fuel chamber and the secondary combustible material in the combustion chamber and forming annular intake passage in the air intake of the combustion chamber. One way of the blower through the top of the connected stove forms the annular intake passage, and the combustion chamber is formed among the top air intake disposed at the bottom of the top, a fire-separating plate on the fire-separating ring. The other way through the air-vent at the bottom of the connected stove realizes the secondary combustion, and meanwhile joins pushing, ash-removing and ventilating together.

The invention belongs to the technical field of uranium enrichment and discloses a heating and evaporation device for the feeding of a uranium enrichment plant. According to the heating and evaporation device of the invention, air in an air duct is heated through an electric heater; being stirred by a circulation fan, the hot air is blown into a box body through the air outlet of the air duct, sothat to a feeding container can be uniformly heated; a material in the feeding container is heated and sublimated into a gaseous-state material, and then the gaseous-state material is fed to a cascaded system, and at the same time, the air in the box body enters through the air inlet of the air duct; and therefore, the heating cycle of the hot air can be completed. The device of the invention hasthe advantages of simplicity, low manufacturing cost and convenient operation. With the heating and evaporation device adopted, the area of the plant and equipment investment can be saved.

The invention relates to an air intake and deslagging device of a coal gas producer. A support is supported and arranged on a base through a rolling and supporting component; a ratchet wheel is arranged on the support and can drive the support to rotate on the base; an ash pan base plate is fixedly arranged at the top of the support; the lower edge of a conical ash pan is welded and fixed with the periphery of the ash pan base plate; a funnel cap seat is arranged in the conical ash pan; a slag storage chamber is arranged between the outer wall of the funnel cap seat and the inner wall of the conical ash pan; the slag storage chamber is filled with water with a certain height; a fixed deslagging shovel is arranged at the side of the conical ash pan and is slantwise inserted into the slag storage chamber; a funnel cap component is welded and fixed at the top of the support; an air inlet which is communicated with the funnel cap component is arranged at the top of the funnel cap seat; and through holes by which an air inlet pipe is stretched into the funnel cap seat are arranged in the centers of the base, the rolling and supporting component, the support and the ash pan base plate. The air intake and deslagging device has ingenious and reasonable structure; the air intake part and the deslagging part are combined together in high efficiency so that the coal gas producer is in the best working state and is convenient for deslagging.