TH25546B - Methods and equipment for the production of cement clinker - Google Patents

Abstract

DC60 A detailed lecture will be provided, details of the methods including equipment for production. The cement clinker which, by the way, the cement raw material is preheated in a preheater (1), has been sintered in a sintering machine (3) consisting of the upper end (3a) and the lower end ( 3b) It was fired into clinker in a kiln (5) and cooled in a pelletizer. Subsequently (7) the invention was characterized by the flue gas from the furnace. Burned (5) will be brought Into the upper end (3a) of the burner. Which in the same way The fuel is imported into the upper end (3a) of the burner. The flue gas / fuel suspensions are brought down through a burner (3), where the pre-heated air from the clinker coolers (7) and the raw material that has been fed to the Pre-heating from the preheater (1) in combination or to be fed It is separated into the burner (3) at the position below the area where the flue gas from the furnace and the fuel are imported, where the preheated air is taken down through the resulting burner (3). Gradually mixed with exhaust gas / fuel suspensions Where the raw material under the action of force Gravity is directed down through the burner (3) along the wall of the burner. That has been suspended in Exhaust gas at the lower end (3b) of the burner And where the exhaust gas suspensions / raw materials will be It is taken from the lower end (3b) of the burner and transported to the separation path (4) for the separation of raw materials, which is then taken to the furnace (5). Yes, there is a significant reduction of NO x leading to the burner along with the burner exhaust gas, high fuel combustion level, although when using fuels with low volatile components and conversion to NO x of Low levels of nitrogen that will lead to the incinerator, a detailed description of the method, including the equipment for the production, is provided. The cement clinker which, by the way, the cement raw material is preheated in a preheater (1), has been sintered in a sintering machine (3) consisting of the upper end (3a) and the lower end ( 3b) It was fired into clinker in a kiln (5) and cooled in a pelletizer. Subsequently (7) the invention was characterized by the flue gas from the furnace. Burned (5) will be brought Into the upper end (3a) of the burner. Which in the same way The fuel is fed into the upper end (3a) of the burner. Which gas suspensions The exhaust / fuel is brought down through the burner (3), where the preheated air from the clinker cools (7) and the raw materials to be fed. Pre-heating from the preheater (1) in combination or to be fed It is separated into the burner (3) at the position below the area where the flue gas from the furnace and the fuel are imported, where the preheated air is taken down through the resulting burner (3). Gradually mixed with flue gas suspensions / fuel Where the raw material under the action of force Gravity is directed down through the burner (3) along the wall of the burner. That has been suspended in Exhaust gas at the lower end (3b) of the burner And where the exhaust gas suspensions / raw materials will be It is taken from the lower end (3b) of the burner and transported to a separation path (4) for the separation of raw materials, which is then taken to the furnace (5). Yes, there is a significant reduction of NO x leading to the burner along with the burner exhaust gas, high fuel combustion level, although when using fuels with low volatile components and conversion to NO x of Low levels of nitrogen, which leads to the incinerator with fuel

Claims (3)

1. Methods for the production of cement clinker In the method of cement raw materials are provided. The preheat in the preheater (1) was burned in the burner (3) that included the upper end (3a) and the lower end (3b) were calcined in the kiln. (5) and cooled in a subsequent cooling clinker (7) characterized by that the flue gas from the furnace (5) is introduced into the upper end (3a) of the burner, in which Likewise, the fuel will be introduced. Enter the upper end (3a) of the burner where the flue gas / fuel suspensions are brought down through the burner (3) where the preheated air from the clinker cools (7). And raw materials that are preheated from a preheating machine (1) that are assembled together or Separately, it is fed into the burner (3) at a location under the area where the exhaust gases from Furnaces and fuel will be imported. Where the preheated air is brought down Through a burner (3) that is gradually mixed with an exhaust gas / fuel suspension where the raw material, under the action of gravity, is brought down through the burner (3) along the wall of the unit. Burn the suspended flue gas at the lower end (3b) of the burner and where the substance The flue gas suspension / raw material is removed from the lower end (3b) of the burner and can It is then transported to the separation path (4) for the separation of raw materials, which is subsequently directed to the furnace (5). 2. The method according to claim 1, which is characterized by that the flue gas of The kiln will be put in It goes into the upper end of the burner (3a) radially, along the tangent or axial line 3. The method according to claim 2 that is characterized by how fuel is to be introduced into the tip. On (3a) of the burner along with the flue gas of the furnace 4. Method according to claim 1, which is characterized by that fuel is imported separately. If it goes in the upper end (3a) of the burner 5. Method according to claim 4, which is characterized by that fuel is axially injected. From the top of the burner (3) 6. Method according to claim 1, which is characterized by that the suspended solids mixed with the flue gas Of the furnace and the fuel is brought down through the burner (3) which generates a flame in the middle of the burner. 7. The method according to claim 1 is characterized as preheating air. From the clinker coolers (7) and preheated raw materials from the preheating machine (1) are imported inside the sintering machine as air suspension / raw materials that are assembled together. According to the characteristic claim 7, the air suspension / raw material will Is introduced into the circumference so that the raw material is thrown into the furnace wall, which makes Raw material slipping down. It follows the wall under the action of gravity while air forms a lining around the flame so that the air is gradually mixed with the exhaust gas / fuel suspensions. Holds the right to Article 1 with the characteristics that the raw materials that have been pre-heated It is put into the burner (3) at a large number of locations at the destination along the unit 1. 0. Method according to claim 9 characterized as preheating raw materials From the preheat (1) it is put into the lower end (3b) of the burner. And / or into In the transmission part (3c) 1 1. Method according to claim 1 that is characteristic whether raw materials that have been pre-heated From the preheater (1) it is put into the burner along with the furnace flue gas 1. 2. Method according to claim 11 that has characteristics that the raw materials that have been pre-heated The functions, which are put in this way, are immediately put into the furnace exhaust gas stream after they are discharged from the furnace (5) 1. 3. A device for accomplishing a method according to the invention of the furnace that will It consists of a preheater (1), a sinter (3) with an upper end (3a) and a lower end (3b), a kiln (5) and a subsequent clinker ( 7) And that has the characteristics that The equipment is assembled by means of (15) for gas ingestion. The furnace exhaust goes into the upper end (3a) of the trajectory burner (13) for the intake of fuel into the upper end (3a) of the trajectory burner (11) for the preheated air intake. From the pellet cooler (7) into the burner (3) at the location below the area for the import of the furnace exhaust gas and the route fuel (17) for the imports of preheated raw materials into the burner ( 3) at the location Under the area for the import of furnace flue gas and route fuel (6) for ejecting substances Suspends flue gas / raw material from the lower end (3b) of the burner and to convey the suspension. To the separation path (4) and the path (8) for the transport of the separated raw materials into the furnace (5).