220 results about "Yellow phosphorus" patented technology

The invention relates to the technical field of yellow phosphate rock powder clustering, in particular to yellow phosphate rock powder clustering equipment which comprises a base, a support is fixedly mounted at the top of the base, and spherical rotary drums are rotatably connected to the two sides of the inner wall of the support in a penetrating mode; a storage cylinder is fixedly mounted at the top of the support, a connecting pipe is rotatably connected into the storage cylinder in a penetrating mode, a quantifying cylinder is fixedly connected to the bottom of the connecting pipe, and a discharging assembly is arranged at the bottom of the quantifying cylinder. By arranging a quantitative barrel, a first through groove, a second through groove and a discharging assembly, the quantitative barrel is rotated to enable the first through groove to be aligned with the second through groove, an adhesive enters a connecting pipe through the first through groove and the second through groove, then the adhesive enters the quantitative barrel, scale marks are arranged outside the quantitative barrel, and after the liquid level in the quantitative barrel reaches a proper value, the adhesive is discharged. The quantitative barrel is rotated to enable the first through groove and the second through groove to be staggered, and the adhesive is quantitatively discharged into the spherical rotating barrel through the discharging assembly, so that the adding amount of the adhesive is controlled, and the agglomeration quality of the yellow phosphate rock powder is improved.

The invention discloses a phosphogypsum-based calcination-free low-carbon cementing material and a preparation method thereof. The phosphogypsum-based calcination-free low-carbon cementing material comprises the following components in percentage by weight: 10%-35% of phosphogypsum, 10%-35% of desulfurized gypsum, 5%-20% of sewage treatment sludge, 10%-35% of fly ash, 10%-35% of yellow phosphorus slag and 5%-20% of phosphorus tailing slag. The total amount of the ardealite and the desulfurized gypsum is controlled within 45%, and the total amount of the fly ash and the yellow phosphorus slag is controlled within 45%. The technical problems that an existing phosphogypsum-based cementing material is low in early strength, poor in performance stability and high in cost are effectively solved through a multi-solid-waste synergistic compatibility design and a calcination-free process.

The application discloses a preparation method of high-purity yellow phosphor, which comprises the following steps: (1) adding pure water into a reaction kettle, adding liquefied yellow phosphor under the condition of heat preservation, starting a stirrer in the reaction kettle, and repeatedly rinsing the yellow phosphor to remove floating impurities; (2) introducing the rinsed yellow phosphor into a circulating fluidized bed reactor provided with a catalyst bed after fully mixing the yellow phosphor with an oxidizing agent through a mixer, fully contacting a mixed fluid of the yellow phosphor and the oxidizing agent with catalyst filling materials in the catalyst bed, and performing an oxidation-reduction reaction; (3) after the oxidation-reduction reaction is completed, the yellow phosphor is flowed back to the reaction kettle from the circulating fluidized bed reactor, and the yellow phosphor flowed back to the reaction kettle is pumped into the circulating fluidized bed reactor to circulate the above oxidation-reduction reaction; and (4) after the reaction is completed, the liquefied industrial yellow phosphor in the reaction kettle is left to be stratified, impurities are removed, refined yellow phosphor is separated, and high-purity yellow phosphor is obtained by rinsing with high-purity water.

The invention discloses a method for smelting yellow phosphorus and alloy by using high-magnesium low-grade phosphorite, which comprises the following steps of: proportioning the high-magnesium low-grade phosphorite, a calcium flux, a siliceous flux, iron ore and a carbonaceous reducing agent, and carrying out reduction smelting treatment, so that part of apatite is reduced to generate yellow phosphorus steam, and part of phosphorus steam and reduced iron are chemically combined to form the alloy; calcium oxide, magnesium oxide, silicon oxide and aluminum oxide form low-melting-point smelting slag, and activated slag is obtained through water quenching. The method can provide technical reference for efficient resource utilization of low-grade phosphorite, especially high-magnesium and high-iron type low-grade phosphorite, three products of high-quality yellow phosphorus, high-added-value ferrophosphorus and activated smelting slag are obtained at the same time, and no new solid waste is generated in the process.

The utility model discloses a yellow phosphorus filling lifting platform which aims at solving the problems that an existing loading platform is not matched with a tank car, and the operation risk of personnel is large. The platform comprises a filling frame and a lifting platform capable of vertically sliding, the filling frame and the lifting platform are connected through a servo electric cylinder, the filling frame is provided with a guide structure, a guardrail and an anti-collision assembly, and the anti-collision assembly is in control connection with the servo electric cylinder. A connecting beam is arranged on the top of the lifting platform, and servo electric cylinders are arranged on the two sides in pairs and connected through connecting rods. A mounting seat of the filling frame is provided with a limiting bearing and a limiting notch. The anti-collision assembly comprises an anti-collision rod and a limiting switch. The platform can adapt to different tank trucks through the lifting platform and the servo electric cylinder, so that people can get on and off the truck conveniently; the operation safety is improved through a guardrail and a lifting function; a servo electric cylinder, a connecting beam and the like guarantee stable lifting; the anti-collision assembly can prevent equipment from being damaged. The existing problems are effectively solved, and the safety and convenience of yellow phosphorus filling operation are improved.

The utility model discloses a yellow phosphorus electric furnace slag quenching device which comprises a slag flushing pool, the slag flushing pool is connected with a liquid inlet of a slag flushing box through a slag flushing pipe, a slag flushing valve and a slag flushing pump are sequentially arranged on the slag flushing pipe, a feeding port in the top of the slag flushing box is connected with a molten slag outlet pipe, and an outlet of the slag flushing box is connected with an inlet of a slag melting pool. A reflux inlet is formed in the bottom of the slag melting tank and connected with an inlet of the slag bin through a reflux pipeline, an outlet of the slag bin is connected with an inlet of the slag flushing tank through a pipeline, and a screen is further arranged in the slag melting tank; according to the utility model, large-particle slag can be intercepted on the upper surface of the screen through the screen and waits for continuous dissolution, and the slag which is dissolved into small particles falls down along screen holes of the screen, so that the phenomenon that the large-particle slag blocks a backflow pipeline, a slag flushing pipe, a valve and a pump can be avoided, and the service life of the slag flushing pipe is prolonged. The abrasion to the valve plate is correspondingly reduced, and the production efficiency is improved.

The application discloses a multi-layer dispersion combustion, high-efficiency energy-saving yellow phosphorus tail gas low-nitrogen burner and a multi-stage combustion method, and belongs to the technical field of energy saving and environmental protection. The mounting flange of the burner is connected with a furnace chamber. The burner comprises a cylinder body, the cylinder body is divided into a fuel cavity and a combustion-supporting cavity which are relatively independent through a transverse partition plate, the fuel cavity is used for conveying yellow phosphorus tail gas, and the combustion-supporting cavity is used for conveying high-pressure and high-speed combustion-supporting air. A center gun is arranged at the center of the cylinder body, an inlet end of the center gun is communicated with the fuel cavity, a plurality of layers of spray gun pipes are arranged, nozzles of a part of the spray gun pipes are staggered in height, and the nozzles of the spray gun pipes are oriented in different directions; a part of the spray gun pipes are provided with rotating blades; an air automatic rotating assembly is arranged at the outer periphery of an outlet end of the center gun and is communicated with the combustion-supporting cavity, and the air automatic rotating assembly is used for automatically and rapidly rotating the combustion-supporting air, so that the combustion-supporting air and the yellow phosphorus tail gas are fully mixed. The application solves the problems of yellow phosphorus tail gas ultra-low NOx and CO emission and yellow phosphorus tail gas blockage.

The invention discloses a method for comprehensively recycling yellow phosphorus slag of an electric furnace, and belongs to the technical field of chemical engineering. Comprising the following steps: grinding slag, adding nitric acid in proportion, reacting dicalcium silicate in the slag with nitric acid to generate calcium nitrate and silicon slag, and reacting calcium nitrate with ammonium carbonate to prepare an ammonium nitrate product and a calcium carbonate product; and washing and separating the silicon slag to obtain orthosilicic acid, returning one part of orthosilicic acid to be re-blended with the phosphate ore to enter the furnace so as to recycle the slag, and calcining the rest part of orthosilicic acid to obtain a white carbon black product. The use amount of silica is reduced, mineral resources of silica are saved, and the use amount of silica produced from yellow phosphorus reaches self-balance.

The application discloses a kind of synthesis methods of high-purity electronic grade sodium hypophosphite, dilute phosphine gas is passed into to the mixed solution of sodium hypochlorite and sodium hydroxide that has been pre-cooled with sufficient stirring, and sodium hydroxide is added to carry out reaction;After reaction is completed, filtration, concentration, crystallization, separation are carried out, and the obtained product is purified by resin to obtain high-purity electronic grade sodium hypophosphite product.Compared with the traditional "yellow phosphorus-lime-soda" oxidation-reduction method for preparing industrial grade product and then preparing high-purity electronic grade sodium hypophosphite, the product purification difficulty of the application is low, by using 7N grade ultra-high purity phosphine without any metal impurities, the problem that arsenic, silicon, germanium, nickel, chromium and other metal impurities cannot be completely removed by traditional process can be effectively solved.In addition, the application also has the advantages of effectively solving the problem of three wastes, high recycling rate of by-products, high economy and the like.

The utility model relates to the technical field of environment-friendly treatment of industrial sewage, in particular to a yellow phosphorus production sewage circulating purification system, which is provided with a yellow phosphorus sewage tank, a multi-stage sedimentation mechanism, a concentration filtering mechanism and a clear liquid collecting tank which are sequentially arranged along a sewage treatment flow, the yellow phosphorus sewage tank is used for collecting yellow phosphorus production sewage; the multi-stage sedimentation mechanism is provided with a plurality of deep cone sedimentation machines which are arranged in series and are used for carrying out sedimentation separation on the conveyed yellow phosphorus sewage; the concentrating and filtering mechanism is used for concentrating and separating the conveyed settling floating liquid; and the clear liquid collecting tank is used for collecting the clear liquid separated by the concentrating and filtering mechanism and conveying the clear liquid to the phosphorus collecting tower through a water conveying pipe. Aiming at the special characteristics of yellow phosphorus production sewage purification treatment, the utility model constructs a closed circulation purification system, has the technical characteristics of greatly reducing the occupied area, being low in construction and operation cost and excellent in separation and purification effect, and has remarkable technical effect and economic benefit.

The invention discloses a selenium-rich rice mineral source soil conditioner and a preparation method thereof, and belongs to the technical field of soil conditioning materials. The conditioner comprises the following raw materials in parts by weight: 30-70 parts of biological activated yellow phosphorus slag, 1-1.5 parts of soluble selenium, 23-62 parts of an activating agent and 3-10 parts of a modifying agent. The method is characterized in that the biological activated yellow phosphorus slag is prepared by sequentially carrying out thermal activation and acid activation on yellow phosphorus slag and then carrying out solid-state fermentation by utilizing a compound microbial agent consisting of paenibacillus mucilaginosus, lactobacillus acidophilus and P.megatherium. Through unique biological activation modification, the industrial problems that a mineral source conditioner is low in granulation rate and slow in particle hardening and disintegration are solved in a synergistic mode, acid soil can be effectively improved, absorption and enrichment of rice on selenium are remarkably promoted, and high-added-value resource utilization of the yellow phosphorus slag is achieved.

A solid waste-based nano-hydrated calcium silicate nucleating agent, its preparation method, and its application in low-heat cement are disclosed. This invention belongs to the field of building materials technology. By weight, it comprises the following components: 10-30 parts of carbide slag, 20-45 parts of yellow phosphorus slag, and 400-2000 parts of sodium hydroxide solution. The calcium hydroxide content in the carbide slag is ≥80%. The silicon dioxide content in the yellow phosphorus slag is ≥35%, and the calcium oxide content is ≥40%. The pH value of the sodium hydroxide solution is 11-12. This invention uses carbide slag, yellow phosphorus slag, and sodium hydroxide solution as raw materials to synthesize a solid waste-based nano-hydrated calcium silicate nucleating agent. Utilizing its nano-sized hydrated calcium silicate as a seed crystal in the early stage of hydration in low-heat cement, it can provide nucleation sites for the hydrated calcium silicate gel, a product of low-heat cement hydration, reducing the nucleation barrier of the hydrated calcium silicate gel, promoting the hydration rate and early strength development of low-heat cement, and providing strong support for the later strength development of low-heat cement, effectively improving the problem of drying shrinkage cracking in low-heat cement.

The utility model relates to the technical field of heat energy recovery, and discloses a yellow phosphorus combustion heat energy recovery device which comprises a combustion tower, a gas conveying pipe is fixedly connected to the interior of the combustion tower, a filter box is fixedly connected to the outer wall of the gas conveying pipe, a filter screen is arranged in the filter box, a connecting pipe is fixedly connected to the interior of the filter box, and the connecting pipe is fixedly connected to the outer wall of the gas conveying pipe. An air blower is fixedly connected to the outer wall of the connecting pipe, a conveying pipe is fixedly connected to the interior of the air blower, a heating box is fixedly connected to the outer wall of the conveying pipe, a water outlet pipe is fixedly connected to the interior of the heating box, and a water supply assembly is arranged on the outer wall of the heating box and used for providing a water source. High-temperature waste gas enters the filter box through the connecting pipe, is filtered through the filter screen and enters the heating box through the connecting pipe, the air blower and the conveying pipe, the water pump is started to convey a water source to the heating box, the high-temperature waste gas is used for heating the water source, the effects of recycling the high-temperature waste gas and achieving gradient utilization of waste heat are achieved, and the heat energy utilization rate is increased.

The invention provides a yellow phosphorus furnace gas dry electrostatic dust collection method which is applied to a dust collection system and comprises the following steps: acquiring the oxygen concentration and temperature in the dust collection system; whether the oxygen concentration meets a preset threshold value or not is judged, and when the oxygen concentration meets the preset threshold value, preheating equipment is started to preheat the dust removal system; whether the temperature in the dust removal system reaches the yellow phosphorus dew point temperature or not is judged; when the temperature reaches the yellow phosphorus dew point temperature, dust removal equipment is started; and a gas inlet pipeline of the preheating equipment is started, so that the yellow phosphorus furnace gas enters the dust removal equipment after being preheated by the preheating equipment, and enters the phosphorus receiving tower for collection after being subjected to dust removal. According to the scheme, dust in the yellow phosphorus furnace gas can be effectively removed, so that yellow phosphorus is further purified, the output of phosphorus sludge is reduced, and the environmental benefit is remarkable.

The utility model discloses a multistage rectifying tower for refining yellow phosphorus, and relates to the technical field of yellow phosphorus refining. The multistage rectifying tower for yellow phosphorus refining comprises a lower tower body, a mounting skirt, a middle tower body, an upper tower body, an upper sealing cover and a lower sealing cover, the mounting skirt is connected to the bottom end face of the lower tower body, the middle tower body is connected to the top end face of the lower tower body, and the lower sealing cover is connected to the inner side of the joint of the lower tower body and the mounting skirt and seals the lower tower body and the mounting skirt. The upper tower body is connected to the top end face of the middle tower body and communicated with the interior. According to the multi-stage rectifying tower for refining yellow phosphorus, the distribution cap with the overhead lower part and dense holes in the surface is designed into a unique structure, so that the problem that a gas-liquid contact interface and a heat exchange area of a traditional tower tray are insufficient is effectively solved; the lower part of the distribution cap is overhead to form an independent steam channel, so that rising steam is pre-dispersed through an overhead space and then uniformly enters a tray liquid layer through dense holes in the surface.

The application discloses a multi-source solid waste efficient phosphorus and fluorine fixing agent and application thereof; the composition and weight parts of the multi-source solid waste efficient phosphorus and fluorine fixing agent are as follows: 5-15 parts of yellow phosphorus slag, 5-15 parts of fly ash, 5-15 parts of steel slag and 2-20 parts of cement; the main raw material of the multi-source solid waste efficient phosphorus and fluorine fixing agent is industrial solid waste; the alkaline component in the main raw material can effectively adjust the pH value of an application system, is favorable for the progress of a hydration reaction, can wrap soluble phosphate and solidify water-soluble fluorine, is convenient to use, and the coupling agent mixed with different particle size raw materials is favorable for the grading effect of cementing materials, fills pores and promotes the strength development of the cementing materials; the phosphorus and fluorine fixing agent can remove more than 95% of soluble phosphorus and more than 95% of water-soluble fluorine, and can be widely applied to the preparation of cementing materials and the ecological filling and utilization of long-term environmental risk controllable industrial solid wastes containing phosphorus and fluorine as main raw materials, so that the bulk application of solid wastes can be realized.

The utility model discloses an automatic reduction device for vaporizing phosphorus trichloride and premixing the vaporized phosphorus trichloride with hydrogen in proportion, relates to the technical field of compound reduction reaction devices, and aims to solve the problem of low yellow phosphorus yield caused by insufficient reduction reaction of phosphorus trichloride and hydrogen. According to the device, an automatic parameter control cabinet is electrically connected to an automatic reduction device, the bottom end of a first reaction kettle is communicated with a hydrogen inlet pipeline through a pipeline, a hydrogen premixing and dispersing device is arranged at the bottom in a cavity of the first reaction kettle, and a plurality of premixing and heating devices are arranged on the outer wall of the first reaction kettle; the top end of the first reaction kettle is connected with a premixing gas-liquid separator through a pipeline, the premixing gas-liquid separator is mounted in a cavity of the second reaction kettle, and one side of the bottom of the first reaction kettle is connected with the second reaction kettle through a pipeline provided with a stop valve; the bottom end of the second reaction kettle is communicated with a phosphorus trichloride liquid inlet pipeline through a pipeline, and the top end of the second reaction kettle is connected with a premixed gas reduction pipeline.

The invention discloses a device and a process for recovering yellow phosphorus in phosphorus sludge based on multistage flash evaporation continuous evaporation. The device comprises a pretreatment system, a drying-pyrolysis-evaporation integrated system and a product recovery and treatment system, phosphorus slurry is pretreated in the pretreatment system in a steam crushing and mixing mode and then enters the drying-pyrolysis-evaporation integrated system for precise temperature control through gradient electromagnetic heating, and the product recovery and treatment system is used for recycling the phosphorus slurry. And finally, the yellow phosphorus enters a product recovery and treatment system, so that the yellow phosphorus and phosphorus-free residues are recovered. According to the device and the process, phosphorus slurry can be uniformly fed in the whole process, phosphorus is evaporated thoroughly, and the yellow phosphorus recovery rate reaches 95% or above; the equipment sealing performance is good, and the risk of ignition caused by spontaneous combustion of yellow phosphorus is effectively avoided; the phosphorus sludge processing capacity reaches 0.5-1.0 ton per hour, continuous and stable operation can be performed for more than 720 hours, and the recycled residues are uniform in granularity and can be used for production of phosphate fertilizers, cement and the like, so that resource recycling is realized.

The invention discloses a method for preparing yellow phosphorus from refractory siliceous phosphorite, and solves the technical problem of how to improve the suitability of refractory siliceous phosphorite powder. Comprising the following steps: a) adding a pretreatment adhesive into refractory siliceous ground phosphate rock, then carrying out wet grinding pretreatment to obtain wet fine powder, and then carrying out first heating treatment on the wet fine powder to obtain dried pretreated mineral powder; b) mixing the pretreated mineral powder with a forming adhesive and water to obtain a mixed material, and then carrying out compression molding on the mixed material to obtain phosphate rock green pellets; c) carrying out second heating treatment on the green phosphorite pellets to obtain dried and solidified phosphorite pellets; d) the phosphorite pellets, a carbonaceous reducing agent and a siliceous flux are mixed and then fed into an electric furnace to be smelted, and furnace gas containing yellow phosphorus steam is generated; e) dedusting and purifying the furnace gas, and condensing the dedusted and purified furnace gas so as to recover yellow phosphorus and produce tail gas rich in carbon monoxide; wherein the pretreatment of the adhesive and the wet grinding pretreatment are cooperated.

The application discloses a catalytic flue gas treatment device and a yellow phosphorus tail gas purification system, and aims to solve the technical problem of reducing the hidden danger of oxygen supplement to the flue gas to be treated during the operation of the catalytic flue gas treatment device. The device comprises a reaction system, a regeneration liquid circulation system and a flue gas conveying system, and further comprises an oxygen supplement system. The oxygen supplement system comprises a second air blower, an airflow adjusting device and an oxygen supplement gas distribution pipe network. The second air blower and the airflow adjusting device are connected with each reactor through the oxygen supplement gas distribution pipe network, so that the airflow generated by the second air blower is adjusted in flow by the airflow adjusting device, and then forms the oxygen supplement gas and enters the flue gas to be treated in the corresponding reactor. The oxygen concentration in the oxygen supplement gas is greater than that in the flue gas to be treated before the mixed oxygen supplement gas. The safety hidden danger possibly caused by the external mixing of the oxygen supplement in the reactor is avoided.

The utility model discloses a water-gas mixing automatic regulation type yellow phosphorus slag water-quenched slag granulation system, which comprises a water supply system, a gas supply system, a submerged arc furnace and a granulator, the gas supply system comprises an air compressor, a pressure tank and a gas pipe, one end of the gas pipe is communicated with the granulator, the air compressor and the pressure tank are connected with each other through the gas pipe, a one-way valve is arranged between the pressure tank and the air compressor, and the one-way valve is connected with the granulator. An air pressure adjusting system is arranged between the granulator and the pressure tank; the water supply system comprises a sedimentation tank, a water pump, a vacuum pump and a water pressure adjusting system which are sequentially communicated through water pipes; a filter is arranged between the sedimentation tank and the water pump; one ends of the water supply system and the gas supply system are jointly communicated with the granulator, and a cleaning system is arranged between the water supply system and the gas supply system; the granulator is arranged below the slag chute to impact the slag water for granulation; according to the utility model, the gas supply system and the water supply system are matched to supply gas and water to the pelletizer to form a water-gas mixture, and the water-gas mixture is sprayed out by the pelletizer to carry out slag quenching and pelletizing on yellow phosphorus slag water flowing out of the slag chute.

The utility model discloses a kind of yellow phosphorus recovery cooling devices, belong to yellow phosphorus recovery cooling technical field, can adapt to yellow phosphorus steam flow variation or different adhesion characteristics recovery scene, effectively reduce the residual of inner wall at the same time, avoid damage to equipment due to excessive knocking force, balance cleaning effect and equipment life.The yellow phosphorus recovery cooling device includes mounting bracket, cooling cylinder for cooling is installed on mounting bracket, cooling cavity is opened in cooling cylinder inside, evaporator pipeline is installed in the cooling cavity of cooling cylinder, refrigeration assembly is installed in the top of mounting bracket and is communicated with evaporator pipeline, air inlet pipe is installed in the top of cooling cylinder, exhaust pipe is installed in the bottom of one side of cooling cylinder;Collecting cylinder is set in the below of cooling cylinder on mounting bracket, discharge pipe is installed in the bottom of mounting bracket, telescopic communication pipe is installed in the top of collecting cylinder, discharge pipe and telescopic communication pipe are cooperatively installed between.

The utility model relates to the technical field of boilers, in particular to a special yellow phosphorus tail gas burning boiler capable of reducing the oxygen content of flue gas, which comprises a yellow phosphorus tail gas storage tank, a desulfurization and dephosphorization agent storage bin and a hearth, a primary air chamber is mounted at the bottom end of the hearth, and an under-bed ignition and flue gas yellow phosphorus tail gas burner is mounted on the side wall of the primary air chamber. A yellow phosphorus tail gas storage tank is communicated with an under-bed ignition and flue gas yellow phosphorus tail gas burner through a pipeline, a desulfurization and dephosphorization agent conveyor is installed at the bottom end of a desulfurization and dephosphorization agent storage bin and communicated with the bottom end of a hearth through a pipeline, and two yellow phosphorus tail gas burners are fixedly installed on each of the two sides of the hearth. A secondary air box communicated with the interior of the hearth is further installed on the side wall of the hearth, a separator is fixedly installed on the outer side of the top end of the hearth, and a material returning device communicated with the bottom end of the hearth is installed at the bottom of the separator.

The invention relates to the technical field of yellow phosphorus slag utilization, and discloses a process for producing a silicon-calcium fertilizer by using yellow phosphorus slag, which is characterized in that the yellow phosphorus slag is used for preparing a SiO2 product, and then the yellow phosphorus slag, a calcium adjusting material, a siliceous optimizing material, a binder and a functional additive are mixed and granulated to form the silicon-calcium fertilizer. According to the scheme, through the synergistic effect of chemical activation and thermal activation, the existence form and release characteristics of nutrients are fundamentally changed, so that the fertilizer meets the growth cycle requirements of crops, and the problems that a traditional silicon-calcium fertilizer is insufficient in release in season and ineffective in later-stage residue are solved; the physiological functions of the silicon element in the aspects of enhancing the mechanical strength of plants, resisting diseases and insect pests, resisting lodging and the like are fully exerted.

The invention discloses a calcining energy-saving device, and relates to the field of metallurgical energy conservation and comprehensive utilization of heat energy. The device solves the problems of high loss on ignition of ores, equipment corrosion, low heat energy recovery efficiency and the like in yellow phosphorus smelting through the integrated design of calcining, neutralizing and waste heat recovery. The core structure of the device comprises a material distribution section, a calcination section, a cooling section, a discharging section and a waste heat recovery system, uniform heat supply is achieved through an inverted-V-shaped hot air groove, crushing of mineral powder pellets is avoided through a triangular material distribution plate, calcium oxide generated through calcination is used for neutralizing acidic substances in tail gas, and equipment corrosion is solved from the source; heat energy is recycled through the waste heat boiler in a stepped mode, and the heat efficiency is improved to 80% or above. The production cost of yellow phosphorus per ton can be reduced, the economic benefit of the smelting industry is improved, the method is suitable for phosphorus chemical industry and metallurgical industry, and energy conservation, emission reduction and efficient utilization of resources are promoted.

The invention relates to an industrial yellow phosphorus filling and transferring device which comprises a yellow phosphorus storage tank, a water tank, a phosphorus conveying main pipe, a phosphorus conveying branch pipe and a driving mechanism, the driving mechanism comprises a truss rod and a lifting sliding block, the lifting sliding block is fixedly connected with the truss rod, the truss rod is fixedly connected with the phosphorus conveying branch pipe, and the driving mechanism is used for enabling one end of the phosphorus conveying branch pipe to move and switch between the water tank and a conversion pot. The other end of the phosphorus conveying branch pipe is communicated with a phosphorus conveying main pipe, the phosphorus conveying main pipe is further communicated with one end of a follow-up hose, and the other end of the follow-up hose is communicated with a yellow phosphorus storage tank. By adopting the technical scheme provided by the invention, after yellow phosphorus is conveyed, the driving mechanism lifts the tail end of the phosphorus conveying branch pipe and extends into the water tank, warm water with proper temperature is stored in the water tank, and the warm water seals the tail end of the phosphorus conveying branch pipe, so that external air is prevented from being in contact with yellow phosphorus, the yellow phosphorus is isolated from the air as much as possible, the potential safety hazard is reduced, and the working efficiency is improved. And the production safety and the personnel safety are ensured.

The application discloses a liquid phosphorus production system, a yellow phosphorus furnace gas treatment system and a phosphoric acid production method. The liquid phosphorus production system is used for treating yellow phosphorus furnace gas and outputting liquid phosphorus, and comprises a heating device used for heating treatment of the furnace gas and outputting heated gas, a feeding device used for inputting conditioning powder into the heated gas and outputting mixed gas, wherein the conditioning powder comprises inorganic oxide powder used for absorbing moisture and acidic components in the heated gas, a filtering device used for gas-solid separation treatment of the mixed gas and outputting clean gas, and a condensing device used for condensing phosphorus vapor in the clean gas into liquid phosphorus. The liquid phosphorus production system of the application can absorb moisture and acidic components in the furnace gas by adding conditioning powder into the furnace gas, can inhibit occurrence of side reactions, can effectively prevent filter medium from forming a film, adsorption or phase change, can delay filter medium blockage, and can significantly reduce operation cost.

The utility model relates to welding device technical field especially relates to a kind of welding device of high sealing property large-scale yellow phosphorus storage tank. It is mainly aimed at the welding of large-scale yellow phosphorus storage tank bottom edge due to dependence on manual operation, there is high technical requirement to welder, is susceptible to individual difference and environmental factor influence, welding quality is unstable, the problem that sealing property is difficult to guarantee and big security risk, the following technical scheme is proposed, including at least one group of moving plate, the welding gun is provided above the moving plate;Guiding mechanism is set in the moving plate near the side of storage tank, the guiding mechanism is used to guide moving plate;Position adjusting assembly is installed on the top of the moving plate, the position adjusting assembly is used to drive welding gun to move to complete welding operation;Distance sensing mechanism is set on the side of the welding gun. The utility model reduces the risk of accident caused by yellow phosphorus leakage, guarantees storage transportation safety, and meets the demand of large-scale storage tank batch production simultaneously.

The invention relates to the technical field of preparation of battery materials, and discloses a preparation method of a phosphorus-carbon negative electrode material based on red phosphorus, which comprises the following steps: step 1, selecting high-purity yellow phosphorus (the purity is greater than or equal to 99.9%) and porous nanocarbon (the specific surface area is greater than or equal to 800m / g, and the pore size distribution is concentrated in 2-50nm) as raw materials, and preparing the phosphorus-carbon negative electrode material according to the performance requirements of the target negative electrode material; high-purity yellow phosphorus (the purity is larger than or equal to 99.9%) and porous nanocarbon (the specific surface area is larger than or equal to 800 m / g, and the pore size distribution is concentrated in the range of 2-50 nm) are selected as raw materials, the quality stability of the raw materials is ensured, in the mixing process, a planetary ball mill is adopted for mixing, and it is ensured that the raw materials are fully and evenly mixed by controlling the ball milling rotating speed and time; meanwhile, a high-temperature-resistant and corrosion-resistant autoclave is used for pressurization and heating treatment, red phosphorus is dissolved and permeates into pores of the porous nanocarbon, a stable phosphorus-carbon composite structure is formed, the whole technological process is controllable and efficient, and a powerful guarantee is provided for large-scale production.

The utility model discloses a convenient-to-disassemble dust accumulation bag for a yellow phosphorus furnace electric dust remover, and relates to the technical field of electric dust removers. The electric dust remover comprises an electric dust remover body and dust accumulation bags, the dust accumulation bags are distributed side by side and are aligned with a dust hopper of the electric dust remover body, the dust hopper of the electric dust remover body is provided with a quick release assembly, a fixing assembly is arranged on the quick release assembly, and the quick release assembly comprises a connecting disc. Slots which are symmetrically distributed are formed in the upper surface of the connecting disc; a push plate is driven to move through a connecting rod, the push plate pushes a limiting block to move into a through groove, then a connecting disc is moved downwards, an inserting block is moved out of an inserting groove, in this way, the situation that the efficiency is low when a dust accumulation bag is disassembled and assembled through a screw can be avoided, and the purpose of rapid disassembling is achieved; the opening of the dust accumulation bag is placed between the pressing disc and the connecting disc, the rotating disc drives the threaded rod to rotate, the threaded rod drives the pressing disc to move downwards, the pressing disc tightly presses the dust accumulation bag, and therefore the dust accumulation bag can be conveniently replaced.