37results about How to "Fully roasted" patented technology

The invention relates to a method for manufacturing black bricks, in particular to a method for manufacturing large-size black bricks, which solves the problem that the traditional baking process of black bricks in conventional sizes cannot manufacture large-size black bricks. Each large-size black brick respectively has the length, the width, and the height of 4.2 m, 2 m and 1 m, and the large-size black brick is made from the following raw materials in percentage by weight: 90 percent of clay, 0.5 percent of coal gangue powder, 7.5 percent of coal powder, 1 percent of coal slime, 0.5 percent of iron powder and 0.5 percent of glass powder. The manufacture process comprises the working procedures of kneading mud, making blanks, drying, loading the blanks into a kiln and roasting. During making the blanks, two fine iron wire nets are put among the brick blanks at intervals; during loading the blanks into the kiln, black bricks in the conventional sizes are palletized and clamped on the peripheries and the upper parts of the large-size black bricks; and during roasting, the brick blanks are roasted twice according to a roasting method of the black bricks in the conventional sizes. The large-size black bricks manufactured by the method have higher strength and no cracks and breakages and fully meet the requirement of brick carving.

The invention provides a chain grate-tandem rotary kiln whole-particle fraction magnetic roasting process for refractory low-grade iron ore. The process mainly comprises the following steps: (1) particle size grading of the iron ore: a step of selecting iron ore respectively with particle sizes of 5 to 15 mm, 3 to 5 mm, 1 to 3 mm and 0 to 1 mm from iron ore with particle sizes of 0 to 15 mm; (2) heating and oxidizing in a chain grate: a step of drying, preheating and oxidizing the iron ore with particle sizes of 5 to 15 mm in the chain grate; (3) roasting in a primary magnetizing rotary kiln: a step of subjecting the oxidized iron ore discharged from the chain grate, the iron ore with particle sizes of 3 to 5 mm and the iron ore with particle sizes of 1 to 3 mm to magnetic roasting in the primary rotary kiln; (4) roasting in a secondary magnetizing rotary kiln: a step of allowing the premagnetized iron ore discharged from the primary rotary kiln and the iron ore with particle sizes of 0 to 1 mm to undergo a reduction reaction with reductive carbon in the secondary rotary kiln in virtue of waste heat of the iron ore; and (5) grinding and magnetic separation of the roasted ore.

The invention relates to an energy-saving and environment-friendly brick burning tunnel kiln for achieving complete separation of smoke and waste heat. The tunnel kiln comprises a tunnel kiln body, acart entrance and a cart exit for a brick cart to enter and exit from are formed in the left and right ends of the tunnel kiln body respectively, and the tunnel kiln body is divided into a brick blankpreheating warming band area, a high-temperature roasting band area, a heat preservation band area and a cooling band area from left to right in sequence; a smoke desulphurization device is connectedto the top of the brick blank preheating warming band area, supply fans are arranged at the top of the heat preservation band area, and air exhausters are installed on the side walls of the two sidesof the rightmost end of the cooling band area; an air exhaust pipe is connected to the top of the cooling band area and communicated with a drying kiln, and a first fan is installed in the air exhaust pipe. The energy-saving and environment-friendly brick burning tunnel kiln has the advantages of being simple in structure, easy to manufacture, practical and efficient.

The invention provides an automatic blank overturning device of a blank stacking machine. The device comprises a front end conveying device, a back end conveying device and a passive overturning bracket roller; a roller of the passive overturning bracket roller realizes passive fixed-axis 90-degree intermittent revolving movement through a pure mechanical ratchet mechanism; L-shaped bracket platforms poked by inertia force and overturned along with a roller body are fixedly mounted at the northeast, northwest, southwest and southeast angles of the roller are fixedly mounted in a manner of central symmetry; when the bracket platforms are intermittently overturned and deflected by 90 degrees, adobes are driven to overturn by 90 degrees in the brick hole directions; and after the adobes are rotated along with the bracket platforms from one side of the roller to the other side, the overturned adobes are conveyed and transferred by the back end conveying device. The device is simple in structure, economical, practical and efficient in blank overturning, saves the manpower, the time and the power, and is more suitable for popularization and application.

The invention discloses molecular sieve activated powder production equipment and a molecular sieve activated powder production method, the molecular sieve activated powder production equipment comprises a processing tank and an electric baking plate, the outer side wall of the processing tank is fixedly connected with a driving motor, the outer side wall of the processing tank is fixedly connected with a feeding pipe, and the inner side wall of the feeding pipe is rotatably connected with a transmission rod, dredging blades are fixedly connected to the outer side wall of the transmission rod, the tail end of the transmission rod penetrates through the outer side wall of the feeding pipe, a second bevel gear is fixedly connected to the tail end of the transmission rod, a first bevel gear is fixedly connected to the outer side wall of an output shaft of the driving motor, and a supporting plate is fixedly connected to the inner side wall of the processing tank, temperature in materials is transmitted through water flow, cooling of the molecular sieve activated powder is achieved in the process, stirring blades begin to rotate in the water flow flowing process, materials can be fully cooled, the cooling time of the molecular sieve activated powder is greatly shortened, and the processing rate of the whole device is increased.

The invention discloses a microwave drying kiln. The microwave drying kiln comprises a bridge body bottom plate, a reversing end frame fixedly installed outside one side of the bridge body bottom plate and a power end frame fixedly installed outside the other side of the bridge body bottom plate. The bridge body is fixedly installed at the top of the bridge body bottom plate, a through groove bodyis formed in the plate surface of the bridge body, a conveying belt is arranged in the through groove body, and one end of the conveying belt is connected with a driving motor in the reversing end frame in a sleeving mode. The other end of the conveyor belt is connected with a driving motor in the power end frame in a sleeving mode, a plurality of microwave heating boxes are fixedly installed ona frame of a bridge body, and the conveyor belt penetrates through the interior of the microwave heating boxes. According to the microwave drying kiln, the residence time of materials in the microwaveheating boxes is controlled by adjusting the moving speed of the conveyor belt, that is, the roasting time of the materials is controlled; in the microwave roasting process of the materials, the phenomenon that the temperature of the surface materials in direct contact with gas is too low is eliminated, so that the materials are roasted uniformly and fully, and the microwave drying kiln is further suitable for microwave heat treatment of other powdery materials, such as drying, sintering and the like.

The invention relates to a high-temperature roasting device. The device comprises a waste liquid tank, a high-pressure pump, a cooling tank, a spray combustion system, a combustion fan and a spraying device, wherein the spray combustion system comprises a waste liquid pipeline, a combustion gas pipeline, a combustion-supporting gas pipeline, a spray combustion device, an atomization roasting furnace and a mist pipeline. The high-temperature roasting device has the advantages and the benefits as follows: 1, through filtration and ultrasonic dispersion of a waste liquid, a uniform slurry system is obtained, and the slurry is roasted more sufficiently by means of a special combustion device; 2, in the roasting process, combustible substances such as organic matter and the like are combusted to generate high temperature, compounds difficult to decompose are pyrolysed, the pyrolysis efficiency is high, and recovery is easy to realize; 3, neutralization agents are not required to be added, and new salt components are not introduced; 4, high-concentration organic matters in the waste liquid can be sufficiently utilized and combusted to supply heat, only a little fuel is required to be supplemented, system energy consumption is low, waste heat of high-temperature smoke can be recovered, resources are saved, and the environment is protected; 5, the technological procedure is simple, the system operates stably, the production safety performance is high and the like.

The invention relates to the technical field of metallurgy, and provides a composite additive used for roasting vanadium extracting. The additive is formed through the step that four materials including, by mass part, 35 parts to 55 parts of sodium materials, 15 parts to 25 parts of calcium materials, 0.5 part to 1 part of vanadium materials and 1 part to 5 parts of titanium materials are mixed and ground to 80 meshes to 100 meshes; the invention further provides a use method of the composite additive used for roasting vanadium extracting. The use method comprises following steps: A, mixing, wherein screened vanadium containing raw materials are selected, and a mixed material with the evenly-mixed composite additive is added; B, roasting, wherein the mixed material is subject to two-time roasting. According to the composite additive and the use method of the additive, the vanadium-contained ore is not likely to generate a liquid phase in the roasting process, the phenomenon of equipment bonding is avoided, toxic and harmful substances are not likely to be generated, the conversion rate and the purity of vanadium can be effectively improved, the roasting time is shortened, the roasting process is simplified, production cost is reduced, and process efficiency is improved.

The invention relates to a flaring-type rotary kiln for vanadium extraction of stone coal. The technical scheme adopted by the invention is as follows: a left flaring-section kiln body, a straight barrel-section kiln body and a right flaring-section kiln body of a kiln body (3) are of an overall structure; a material outlet (9) is formed at a position adjacent to the left end of the kiln body (3), and a material inlet (1) is formed at a position adjacent to the right end of the kiln body (3); the left end of the interior of the kiln body (3) is coaxially and fixedly provided with a sleeve-type burner (10), and the center of the end face of the right end of the kiln body (3) is provided with a fume outlet (2); the excircle of the straight barrel-section kiln body is provided with a first jockey pulley group (6) and a second jockey pulley group (4); the first jockey pulley group (6) is mounted on a foundation platform (8) by virtue of a rotation pair (7); a bracket of the second jockey pulley group (4) is articulated with a piston rod of a hydraulic cylinder (5). The flaring-type rotary kiln has the characteristics of regulating the inclination angle of the central line of the rotary kiln, improving the preheating capability and heating capability of the rotary kiln, enabling the temperature distribution of the burning zone of the rotary kiln to be uniform and achieving high low-price vanadium conversion rate.

The invention discloses an ore continuous bake furnace, which can solve the defects of hearth-furnace and revolution furnace that short bake time and lower weight when continuously baking colorful metallic ore, as vanadic anhydride. Wherein, the hearth comprises a material feeder 12; two sides of bake furnace are distributed with burning furnace 2; the middle of bake furnace is mounted with a material mixer 5; the arc top of furnace 1 has an incline oxygen ejector 4. The invention can realize bath and automatic production, with high baking efficiency, while it can bake vanadic anhydride and other metallic ores.

The invention relates to a manganese ore roasting rotary kiln system, comprising a batching system, a feeding system, a rotary kiln, a tail gas dust removal system and a gas burner. The batching system comprises a batching belt weigher; the batching belt weigher is provided with a quality inspection device; the feeding system comprises a disc feeder and a feeding chute; the tail gas dust removal system comprises a cooler, a cloth bag type dust remover, an induced draft fan and a chimney; the gas burner comprises a gas burner nozzle and a control valve set; the cooler is provided with a kiln-out tail gas detection device; the kiln-out tail gas detection device detects the content of various smoke in kiln-out tail gas; and the quality inspection device inspects the quality of manganese ore to be batched. When the smoke content in the kiln-out tail gas exceeds a preset value, it is indicated that the roasting reaction in the rotary kiln is insufficient; and the rotary kiln is fed by adjusting the disc feeder and the feeding chute to increase the quality of the manganese ore in the rotary kiln, so that the roasting reaction in the rotary kiln is more sufficient, the emission of smoke is reduced, the cost and resources are saved, and the environmental pollution is reduced.

The invention discloses a coating apparatus for an active coating on a carrier in an exhaust particulate trap. The coating apparatus is equipped with a unreeling shaft, a coating tank, a rapid drier, a tunnel kiln and a reeling shaft in sequence along a conveying direction of the carrier, wherein the tunnel kiln comprises M (M is an integer and is larger than or equal to 2) isolation areas which are arranged from up to down; the carrier passing through the former isolation area enters into the following isolation area through a steering shaft; N isolation areas (N is an integer and N is smaller than M but larger than or equal to 1) disposed at the upper part are roasting areas, each roasting area being connected to a first control unit for adjusting temperature and hot wind power; the temperature at a following roasting area is higher than that of the former roasting area; and M-N isolation areas disposed at the lower part are cooling areas, each cooling area being connected to a second control unit for adjusting cold wind volume and measuring the temperature of the cooling area. The coating apparatus realizes integrated operation from coating, drying, roasting and winding and shaping. The coating apparatus is simple in structure and low in cost, is simple and convenient for operation, saves labor and is uniform in coating.

In order to solve the problem of influence on the quality of pellets due to inconsistent raw material roasting of the belt type roasting machine, the invention provides a device for fully roasting pellets in the belt type roasting machine. The device comprises a power system and a transmission system, wherein the power system is mainly composed of double gear wheels, a guide rail, a rolling wheeland a power connecting rod, and the transmission system is composed of a mixing rod group and a connecting rod mechanism. The problem of influence on the quality of the pellets due to inconsistent rawmaterial roasting in a bogie can be effectively prevented.