14results about "Preheating coke ovens" patented technology

The invention relates to the technical field of biomass carbonization, in particular to a biomass continuous carbonization kiln based on a double-layer rotary kiln structure and application of the biomass continuous carbonization kiln. A biomass continuous carbonization kiln comprises a rotary kiln body, a heating box body and a sealing system. According to the invention, preheating and carbonization are carried out in sections through the inner and outer layer guide plates, the carbonization time is prolonged by 30%, and the product yield is improved by 15%; oxygen permeation is controlled through triple sealing, the deflagration risk is reduced, and safety is good; heat energy closed-loop utilization: flue gas purification, tail gas backdraft and waste heat drying are integrated, comprehensive energy consumption is reduced by 25%, flue gas waste heat is fully recycled, heat energy is utilized in a stepped mode, energy consumption is low, and environment-friendly production is achieved; the explosion-proof device is linked with the cooling system, so that the problem of passive protection only depending on buffer filler in the prior art is effectively solved, and the safety controllability is high.

The invention relates to a device (1) for material treatment of raw materials. The device (1) has a heating system (2), a distillation unit (3), a reaction unit (4) and a control device (15). The reaction unit (4) is formed such that the reaction unit can be filled with a raw material for processing. The heating system (2) can be opened and closed to fill the reaction unit (4). An exhaust line (11, 11a, 11b) for discharging exhaust gas from the reaction unit (4) is arranged between the reaction unit (4) and the distillation unit (3). The distillation unit (3) has a cooling section (12) with means for forced cooling. According to the invention, the cooling section (12) is arranged in an air-conducting housing (12-1) for the targeted conduction of ambient air through the cooling section (12), and / or the cooling section is formed from at least one coaxial tube for the passage of a gas and a heat transfer fluid. Temperature sensors (T1, T2, T3) are provided in the region of the heating system (2) and the distillation unit (3). An extraction device (14-1) for extracting gas from the reaction unit (4) and generating a negative pressure is formed in the reaction unit (4). The temperature sensors (T1, T2, T3) and the extraction device (14-1) are connected to a control device (15). The invention further relates to a method for operating a device (1) for the material treatment of raw materials, and to carbon produced by said method.

The present invention relates to an apparatus (1) for raw material processing. The apparatus (1) comprises a heating system (2), a distillation unit (3), and a reaction unit (4), as well as a control device (15). The reaction unit (4) is designed to receive raw materials for processing. The heating system (2) can be opened or closed to charge the reaction unit (4). To discharge exhaust gas from the reaction unit (4), exhaust gas channels (11, 11a, 11b) are provided between the reaction unit (4) and the distillation unit (3). The distillation unit (3) has a cooling section (12) including equipment for forced cooling. The cooling section (12) is located inside an air guide housing (12-1) for targeted guidance of ambient air through the cooling section (12) and / or is formed from at least one coaxial tube for passing gas and heat transfer fluid. Temperature sensors (T1, T2, T3) are provided in the area of the heating system (2) and the distillation unit (3). An aspirator (14-1) is provided inside the reaction unit (4) to extract gases from the reaction unit (4) and to create a vacuum. The temperature sensors (T1, T2, T3) and the aspirator (14-1) are connected to a control device (154). The invention also relates to a method for operating the apparatus (1) for raw material processing and to carbon produced using said method.

The utility model relates to a device for a coal blending experiment of a coking enterprise, in particular to a double-carbonization chamber test coke oven device. A double-carbonization-chamber test coke oven device comprises a small coke oven, silicon carbide rods are matched in the small coke oven, carbonization chambers of the small coke oven are connected with an incinerator through smoke pipes on the upper portions of the carbonization chambers, stop valves are arranged in the smoke pipes, the incinerator is connected with a purification device through a pipeline, the purification device is connected with a purification fan through a pipeline, and an air outlet of the purification fan is connected with a chimney. Blended coal cakes are loaded into a small coke oven carbonization chamber to be tested, raw coke oven gas generated in the coal blending test is guided into an incinerator through a smoke pipe on the upper portion of the carbonization chamber, waste gas generated after incineration is purified through a purification device to reach the standard and then discharged into a chimney, and the overall power of the waste gas comes from a purification fan behind the purification device. The test coke oven system disclosed by the utility model adopts the small coke oven for testing, so that the requirement of coal blending proportion adjustment of coking enterprises can be met; and other waste substances are not generated in the test process, and the whole is environment-friendly and efficient.

The present invention discloses a carbonization chamber-combustion chamber structure of a coke oven, comprising a carbonization chamber and a combustion chamber arranged in parallel, and also comprising a balance channel, wherein the balance channel is arranged above the carbonization chamber and the carbonization chamber, and is connected to the carbonization chamber and the combustion chamber respectively, so as to distribute the raw coal gas generated in the carbonization chamber to the combustion chamber. The present invention also provides a coke oven comprising the above-mentioned carbonization chamber-combustion chamber structure. The carbonization chamber-combustion chamber structure of the present invention can realize uniform heating of the carbonization chamber and improve the coking efficiency.

The utility model discloses a pyrolyzing furnace safe to use, which relates to the technical field of pyrolyzing furnaces, and comprises a bottom plate, a first support column and a second support column are respectively mounted on the bottom plate, a furnace body and a preheating cylinder are respectively arranged on the first support column and the second support column, a feed port and a feed port are respectively arranged on the furnace body and the preheating cylinder, and the feed port and the feed port are communicated with each other. An air inlet pipe and a discharge port are arranged on the furnace body, a plurality of air outlet holes are formed in the air inlet pipe, an air outlet is formed in the preheating cylinder, and a heating pipe is arranged in the preheating cylinder. When the pyrolysis furnace is used, high-temperature gas generated in the pyrolysis process can be utilized, raw materials are preheated through the high-temperature gas, and some wet raw materials are dried, so that the pyrolysis efficiency of the raw materials in the furnace body can be improved, energy can be effectively saved, and due to the arrangement of the reinforcing plate, the raw materials can be conveniently and rapidly pyrolyzed. The overall strength of the furnace body can be effectively improved, and the safety of the furnace body in the using process is improved.

The present application discloses a kind of coke oven positive pressure baking process, comprising the following method steps: step one: install positive pressure baking equipment in one side of coke oven, connect gas pipeline with the air inlet pipe of positive pressure baking equipment.The present application can evaporate most of the moisture of masonry through chimney by controlling the time of hot gas entering for 25 days, and the temperature of hot gas entering is 250 DEG C±30 DEG C, to avoid rapid heating, and the lining of furnace body is damaged due to the expansion of a large amount of water vaporization when coke oven heats up sharply.Then by controlling the time of hot gas entering for 20 days, and the temperature of hot gas entering is 350 DEG C±20 DEG C, then by controlling the time of hot gas entering for 23 days, and the temperature of hot gas entering is 520 DEG C±20 DEG C, then by controlling the time of hot gas entering for 14 days, and the temperature of hot gas entering is 600-900 DEG C, gradually preheat the coke oven, to avoid thermal stress caused by rapid heating to damage the coke oven, while the baking time is shortened, and the cost of baking is reduced.

This invention discloses a vertical rice husk carbonization furnace, relating to the field of carbonization furnace technology. It includes a carbonization furnace body, with a preheating chamber, a carbonization chamber, and an air-lock buffer chamber arranged from top to bottom inside the furnace. Isolation grates and fixing plates are respectively installed between the chambers. An air-lock plate is installed at the lower end of the fixing plate and the furnace body. A heat exchange box is located below the air-lock plate, containing a first heat exchange tube. Several second heat exchange tubes are installed in the preheating chamber. This invention employs continuous carbonization and negative pressure carbonization processes. The negative pressure inside the furnace is controlled at 0.3 kPa–0.6 kPa. A closed-loop heat exchange system is formed through multiple layers of heat exchange tubes. The second heat exchange tubes are parallel and interconnected with the first heat exchange tubes, efficiently recovering the waste heat from high-temperature carbonized rice husks to uniformly preheat the raw materials. Combined with the air-lock structure to isolate air, a low-oxygen, slightly positive-pressure carbonization environment is maintained, enabling continuous operation of rice husk preheating, carbonization, and buffer unloading. It also features waste heat recycling, low energy consumption, thorough carbonization, and environmental friendliness with no dust.

The utility model relates to the technical field of biomass carbonization, in particular to a drying system suitable for pretreatment of biomass carbonization raw materials, which comprises a large-dip-angle belt conveyor, a feeding auger is fixedly connected to the outer side of the large-dip-angle belt conveyor, a flame path is fixedly connected to the upper portion of the feeding auger, and the flame path is fixedly connected to the lower portion of the large-dip-angle belt conveyor. The outer side of the flame path is fixedly connected with a hot blast stove, the upper portion of the hot blast stove is fixedly connected with a high-temperature hot smoke pipeline, the right side of the flame path is fixedly connected with a drying machine, and the outer side of the drying machine is fixedly connected with a cyclone dust collector. The problem that a carbonization and drying system cannot operate continuously is solved, the problem that a carbonization combustible gas pipeline and a high-temperature hot smoke pipeline occupy a large area is solved, and the problem that when the drying and carbonization system is shut down, due to the fact that dried materials cannot be discharged, a drying machine is damaged is solved by additionally arranging an additional discharging opening in a discharging auger.

The present invention discloses a coking oven, comprising a furnace body and a furnace top. A carbonization chamber and a combustion chamber are arranged in the furnace body, and the carbonization chamber and the combustion chamber are arranged side by side in the upper part of the furnace body; the coking oven also includes a balancing channel and a heat exchange chamber, the balancing channel is arranged in the furnace top, and is respectively connected with the carbonization chamber and the combustion chamber, and is used to evenly distribute the combustible substances produced by the dry distillation of coal in the carbonization chamber to the combustion chamber; the heat exchange chamber is arranged in the lower part of the furnace body, and is connected with the combustion chamber, and the heat exchange chamber is also connected with the external environment, and is used to preheat the input combustion-supporting gas. The present invention also discloses a coking system, comprising a coking oven and a waste heat boiler, the coking oven adopts the above-mentioned coking oven, and the flue gas channel of the heat exchange chamber is connected to the waste heat boiler. The coking oven of the present invention has more balanced heating, short coking time, low energy consumption and high production capacity.

The utility model discloses a coke oven with a preheating function, which specifically comprises an oven body, a plurality of carbonization chambers are arranged in the oven body, the top of each carbonization chamber is respectively provided with an exhaust port and a feed port, a conveying cylinder is obliquely arranged and respectively arranged on one side of each carbonization chamber, a spiral shaft is rotatably arranged in the conveying cylinder, and the spiral shaft is connected with the feed port. The bottom of each spiral shaft is driven by a driving device to rotate; a heating bin is further arranged on one side of the furnace body, and the conveying barrels penetrate through the heating bin and are connected with the heating bin in a sealed mode. Each exhaust port is connected with the heating bin through an exhaust pipe, and gas exhausted by the carbonization chamber is introduced into the heating bin. During use, the spiral shaft drives coal to be conveyed to the top of the conveying barrel, when the coal passes through the interior of the heating bin, the coal in the conveying barrel is heated, finally the preheated coal enters the furnace body from the discharge pipe, and the coal is preheated for newly added coal in the decomposition process.

The embodiment of the invention provides a box-type coke oven and a method for realizing a heating flow field of the box-type coke oven. A first carbonization space and a second carbonization space are arranged in a hollow coke box, side wall air outlets are formed in the two sides of the hollow coke box, and a lateral airflow blocking structure extending in the height direction is combined; and a waste gas guide-out hole positioned between the two carbonization spaces on the coke box tray is used for guiding the flow directions of air and waste gas in the coke oven. Therefore, the problems of disorder and confusion of airflow in a traditional coke oven are solved, the airflow flow direction has guidance and directionality, control over heat distribution of a dry distillation area is achieved, heating is more uniform, the coking uniformity is promoted, and the coking heat efficiency is improved.

A device for the material treatment of raw materials includes a heating system, a distillation unit, a reaction unit, and a control device. The reaction unit can be charged with the raw materials for treatment. The heating system can be opened to be charged with the reaction unit, and closed. An exhaust gas line is provided to discharge exhaust gases from the reaction unit. The distillation unit has a cooling section with a device for forced cooling. Temperature sensors are provided in the region of the heating system and the distillation unit. An extraction device extracts gases from the reaction unit and generates negative pressure inside the reaction unit. The temperature sensors and the extraction device are connected to the control device. The device can be operated for the material treatment of raw materials to produce, for example, carbon.

The invention relates to an apparatus (1) for the material treatment of raw materials. The apparatus (1) has a heating system (2), a distillation unit (3), and a reaction unit (4), as well as a control device (15). The reaction unit (4) is designed so that it can be charged with the raw materials for treatment. The heating system (2) can be opened and closed in order to be loaded with the reaction unit (4). An exhaust gas line (11, 11a, 11b) is provided between the reaction unit (4) and the distillation unit (3) in order to discharge the exhaust gases from the reaction unit (4). The distillation unit (3) has a cooling section (12) comprising an apparatus for forced cooling. The cooling section (12) is located inside an air guide housing (12-1) for guiding ambient air via the cooling section (12) in a targeted manner and / or is formed from at least one coaxial tube for the passage of gases and a heat transfer fluid. Temperature sensors (T1, T2, T3) are provided in the region of the heating system (2) and the distillation unit (3). A suction device (14-1) is provided inside the reaction unit (4) in order to extract gases from the reaction unit (4) and generate a vacuum. The temperature sensors (T1, T2, T3) and the suction device (14-1) are connected to the control device (15). The invention also relates to: a method for operating an apparatus (1) for the material treatment of raw materials; and a carbon produced using said method.