40results about How to "High fiber rate" patented technology

The present invention discloses a charging method for industrial production and its charging system. Said charging system includes the following portions: bunker, electronic-weighing system, belt conveyer, conveying guideway, bucket and smelting furnace. Said invention also provides the concrete steps of said charging method.

The invention discloses a method for producing mineral wool by using early-stage molten-state steel slag of a converter, and belongs to the technical field of production of mineral wool. The method comprises the following steps: pouring the early-stage molten-stage steel slag of the converter in a smelting furnace, adding a reducing agent and a modifier in a pouring process, and carrying out reducing and modifying; and after stirring, mixing evenly and standing for 0.5-1.5 hours, feeding slag at the temperature between 1,380 DEG C and 1,430 DEG C to wool producing equipment and processing into the mineral wool. Double advantages of 'residues' and 'heat' of the molten-state steel slag are played fully, ferrosilicon and aluminum granules are used as reducing agents, reaction of silicon, aluminum and iron oxide is silicothermal reaction and aluminothermal reaction, a large amount of thermal can be produced along with the reaction, and heat supply in a whole reducing and modifying process can be satisfied. After valuable elements are recycled, residues are directly prepared into the mineral wool with high additional value, the molten-state steel slag is comprehensively recycled, the problem of emission of the steel slag is solved, furthermore, the production cost of the mineral wool can be reduced, and the economic benefit and the environment benefit are good.

The invention discloses a blast furnace thermal-state slag mineral wool producing device and aims to provide the blast furnace thermal-state slag mineral wool producing device which not only can fully utilize residual heat resources in blast furnace thermal-state slag and is energy-saving and environmental-protective but also can enable a melt in a slag furnace to be melted uniformly, a vitrification degree to be high and a fiber-forming ratio and quality of mineral wool to be improved. The device includes a slag-obtaining trough used for guiding a blast furnace thermal-state slag flow, a feeding chute apparatus, a slag furnace and at least two centrifugal machines. The slag furnace successively includes a feeding tank, a homogenizing tank, a melting tank, a clarifying tank and at least two material paths. A slag flow inlet and a main modulating material feeding port are arranged on an upper part of the feeding tank. The bottom of the feeding tank is connected to the bottom of the homogenizing tank through a first liquid flowing path. The bottom of the homogenizing tank is communicated with the bottom of the melting tank through a second liquid flowing path. The clarifying tank is communicated with the melting tank through a third liquid flowing path. One end of each material path is communicated with the clarifying tank and the other end of each material path is closed. In addition, material outlet ports are arranged at the bottoms of the material paths.

The invention discloses a hot air fiber forming system for rock wool production. The hot air fiber forming system comprises a high-temperature hot air fiber forming four-roller centrifugal machine, and also comprises a liquid-gas mixing center glue spraying device, a centrifugal roller cooling water system, an oil-gas lubricating system, a heat insulation cooling system and a high-temperature high-speed hot air system which are arranged in parallel; an output end of the liquid-gas mixing center glue spraying device is communicated with a center glue spraying inlet through a pipeline; an outputend of the centrifugal roller cooling water system is communicated with a cooling water inlet through a pipeline, the oil-gas lubricating system is communicated with a cavity in a main shaft througha pipeline, the heat insulation cooling system is communicated with a heat insulation cooling water inlet through a pipeline, and the high-temperature high-speed hot air system is communicated with ablow-off air port through a pipeline. The hot air fiber forming system further comprises a glue applying system, the glue applying system is communicated with the liquid-gas mixing center glue spraying device and a peripheral glue applying device through pipelines, the peripheral glue applying device is connected with a spray head, glue is sprayed to the periphery of a centrifugal roller, and mistglue flow is formed. According to the system, fiber forming fiber is small in diameter, low in slag ball content, high in fiber forming rate and more energy-saving and environment-friendly.

The invention discloses a preparation method for an aramid fiber 1414 based composite material, belonging to the technical field of artificial fibers and composite materials. The preparation method provided by the invention uses poly-para-phenylene terephthalamide and paraphthaloyl chloride as raw materials, performs polymerization, spinning and post-treatment, and strictly controls condition parameters like temperature, viscosity, time, content, spinning speed and tension in the production process, so the production process for the aramid fiber 1414 based composite material is effectively guaranteed to be stably performed; meanwhile, the quality of a target composite material is improved; and the demands of a market are met.

The invention discloses a slag furnace and aims to provide the slag furnace which not only can fully utilize residual heat resources in blast furnace thermal-state slag and is energy-saving and environmental-protective but also can enable a melt in a slag furnace to be melted uniformly, a vitrification degree to be high and a fiber-forming ratio and quality of mineral wool to be improved. The slag furnace successively includes a feeding tank, a melting tank and a material path. A slag flow inlet and a main modulating material feeding port are arranged on an upper part of the feeding tank. The feeding tank is connected to the melting tank through a first liquid flowing path. One end of the material path is communicated with the melting tank and the other end of the material path is closed. In addition, a material outlet port is arranged at the bottom of the material path. A first flow-controlling gate board device is disposed at the first liquid flowing path and is used for controlling the flow rate of the first liquid flowing path. A material path flow-controlling gate board device is disposed at the material path and is used for controlling the flow rate of the material path. The material path flow-controlling gate board device is arranged between the melting tank and the material outlet port and is closed to the melting tank.

The invention relates to an underflow-type flow-controllable electric-heating graphite nozzle device used for short-flow rock wool production. The device is structurally characterized in that a graphite sleeve is fixed on a bottom lining, the upper end of a graphite electric-heating spiral tube is connected to the graphite sleeve in a threaded manner, an electric-heating tube graphite conducting plate is fixed to the graphite electric-heating spiral tube through a graphite fixing nut, and refractory filler is arranged on two sides of the graphite electric-heating spiral tube. The device has the advantages that the process using the device saves more than 60% of energy consumption per ton as compared to the cupola rock wool process; no environmental pollution occurs; the slag smelter is high in power factor, low in energy consumption and high in heating speed; the bottom-leak deslagging nozzle ensures accurate flow, and no melt is wasted; the adaptation range is wider, and the furnace burden ingredients are adjustable; a slag bath with the upper temperature limit of 1700 DEG C is satisfactory to melts of various qualities, with no need for coke; magnetic stirring and mechanical stirring guarantee even melt ingredients; energy consumption is low, heat efficiency is high, and waste slag is little; the smelter is superior in terms of temperature rise, temperature adjustment, temperature retention and conditioning and is high in loading capacity.

The invention discloses a blast furnace thermal slag-to-mineral wool preparation system, and aims to provide the blast furnace thermal slag-to-mineral wool preparation system that not only can make full use of the residual heat resources in blast furnace thermal slag, is environment-friendly, but also can achieve uniform melt melting in a slag melting furnace and high vitrification degree, and effectively improve the fiber forming rate and quality of mineral wool. The system includes: a slag fetching ditch for diversion of blast furnace thermal slag, a slag melting furnace and at least two centrifuges. The slag melting furnace comprises, in order, a charging pool, a homogenization pool, a melting pool, a purification pool and at least two material channels. The upper part of the charging pool is provided with a slag inflow port and a main tempering material adding port. The bottom of the charging pool and the bottom of the homogenization pool are connected through a first liquid flow channel, the bottom of the homogenization pool and the bottom of the melting pool are communicated through a second liquid flow channel, and the purification pool and the melting pool are communicated through a third liquid flow channel. One end of each of the material channels is communicated with the purification pool, the other end is sealed, and the bottom of each material channel is provided with a discharge port.

The invention discloses a blast furnace thermal-state slag granular cotton production line and aims to provide the blast furnace thermal-state slag granular cotton production line which not only can fully utilize residual heat resources in blast furnace thermal-state slag and is energy-saving and environmental-protective but also can enable a melt in a slag furnace to be melted uniformly, a vitrification degree to be high and a fiber-forming ratio and quality of mineral cotton to be improved. The device includes a blast furnace slag trough used for guiding a blast furnace thermal-state slag flow, a slag furnace and a centrifugal machine. The slag furnace successively includes a feeding tank, a homogenizing tank, a melting tank and a material path. A slag flow inlet and a main modulating material feeding port are arranged on an upper part of the feeding tank. The bottom of the feeding tank is connected to the bottom of the homogenizing tank through a first liquid flowing path. The bottom of the homogenizing tank is communicated with the bottom of the melting tank through a second liquid flowing path. One end of the material path is communicated with the melting tank and the other end of the material path is closed. In addition, a material outlet port is arranged at the bottom of the material path.