37 results about "Oxidation zone" patented technology

The invention discloses a sludge low-temperature oxidation treatment system and method. The system comprises a pretreatment unit, a feed lifting mechanism, a low-temperature oxidation furnace, a flue gas purification unit and an automatic control unit. The low-temperature oxidation furnace is divided into a feeding area, a low-temperature oxidation area and an air distribution and slag discharge area from top to bottom, an air distribution plate is provided with air outlets which are uniformly arrayed, the temperature of the low-temperature oxidation area is controlled to be 420-480 DEG C, and generation of dioxin is inhibited from the source. The pretreatment unit is used for mixing sludge, biomass and quartz sand to form a loose breathable material to prevent the sludge from hardening; the method comprises the steps of material mixing, continuous feeding oxidation, temperature closed-loop regulation and control, flue gas purification and ash treatment, high-water-content municipal sludge can be stably treated, the energy consumption is low, the dioxin generation amount is low, flue gas emission reaches the standard, ash can be recycled, and the method is suitable for large-scale municipal sludge harmless treatment.

The invention discloses a classified grouting reinforcement method for a wind oxidation zone of a lignite mining roof, and relates to the technical field of coal mining, the method comprises the following steps: obtaining the average wind oxidation zone thickness, the water inflow and the average natural gamma value covering each weighting step section on a lignite mining working surface to be mined; according to the average wind oxidation zone thickness, the water inflow and the average natural gamma value corresponding to each weighting step section, a set number of drilling points are determined on the lignite mining working face; the drilling leakage amount of each drilling point is obtained; based on the data of each drilling point, determining the function relationship between the drilling leakage amount and the average wind oxidation zone thickness, the water inflow amount and the average natural gamma value; according to the function relation, the drilling leakage amount of each weighting step section is determined; dividing the drill hole leakage amount of each weighting step section into a plurality of grades of slurry eating areas; and different grouting technologies are adopted for grouting reinforcement of the slurry eating areas of all the grades. Top plate accidents can be reduced, grout leakage is reduced, in addition, the grouting cost is reduced simply.

The application discloses a sludge low-temperature oxidation treatment system and method thereof, and the system comprises a pretreatment unit, a feeding lifting mechanism, a low-temperature oxidation furnace, a flue gas purification unit and an automatic control unit. The low-temperature oxidation furnace is divided into a feeding area, a low-temperature oxidation area and a wind distribution and slag discharge area from top to bottom, the wind distribution plate is provided with a uniform array of air outlets, the temperature of the low-temperature oxidation area is controlled in the range from 420 DEG C to 480 DEG C, and the generation of dioxin is inhibited from the source. The pretreatment unit mixes the sludge, biomass and quartz sand to form loose and breathable materials, so that the sludge is prevented from being hardened. The method comprises material mixing, continuous feeding oxidation, temperature closed-loop regulation and control, flue gas purification and ash and slag treatment. The application can stably treat municipal sludge with high water content, has low energy consumption and low dioxin generation, flue gas emission meets the standard, ash and slag can be recycled, and is suitable for large-scale harmless disposal of municipal sludge.

The application discloses a coal seam water inrush danger monitoring method and system based on repeated disturbance in an ecological fragile area, and relates to the technical field of mine water disaster prevention and control. The method comprises the following steps: comprehensively determining engineering geological conditions according to the vertical depth of the wind oxidation zone and the coal seam characteristic parameters; performing numerical simulation by using a numerical model; based on the positions of the fan lanes of the coal seam working faces in the mine field exploration line graph, determining the water prevention and isolation coal rock pillar setting under repeated disturbance of the coal seam working face near the ecological fragile area coal seam hidden outcrop by using the development heights of the two zones and the height inhibition coefficients of the wind oxidation zone two zones when the coal seam working faces are mined for different lengths, and monitoring the water inrush danger of the working face according to the roof failure characteristics of each working face in the regional roadway. The application can realize real-time and accurate water inrush danger monitoring of the working face near the coal seam hidden outcrop.

The invention belongs to the technical field of coal mine underground fire prevention and extinguishing, and particularly discloses a method for preventing spontaneous combustion of a coal pillar in small coal pillar mining. The parameters comprise the working face mining coal seam shortest spontaneous combustion period, the goaf coal spontaneous combustion oxidation zone on-site measurement air inlet and return side average width, the coal face actual daily propulsion degree and the small coal pillar thickness; based on the parameters, the distance L between the drill hole groups is determined; drilling the adjacent goaf every L in the roadway of the stope face along the mining direction of the stope face to form a plurality of drill hole groups which are distributed at intervals; and a gelling agent is injected into the triangular non-caving area through the drilling hole set, and a plurality of filling isolation bodies distributed at intervals are formed in the triangular non-caving area. The multiple filling isolation bodies distributed at intervals are arranged in the triangular non-caving area, the air leakage channel is blocked through the filling isolation bodies, the spontaneous combustion oxygen supply condition is cut off, and the spontaneous combustion problem is effectively restrained.

The present application belongs to the technical field of coal spontaneous combustion prevention and control in the goaf of underground coal mining face, and specifically relates to a multi-point self-feedback inerting integrated variable frequency injection and spraying fire prevention and extinguishing method for the goaf of coal mine. The method comprises the following steps: calculating the required nitrogen injection flow for fire prevention and extinguishing in the goaf of working face; calculating the required amount of retardant to be sprayed in each cycle of inerting fire prevention in the goaf of working face; performing injection and spraying operation according to the injection amount and retardant amount calculated in steps 1 and 2 respectively as one injection and spraying cycle per shift; determining the oxygen content of each monitoring point of the goaf tube; calculating the average oxygen concentration of the oxidation zone of the goaf according to the oxygen content of each monitoring point, and then calculating the new nitrogen injection flow to correct the nitrogen injection flow in step 1, and adjusting the nitrogen injection flow of the injection and spraying system in step 3 to perform injection and spraying operation; monitoring the CO and C2H4 gas concentrations in real time during injection and spraying operation; if the CO and C2H4 gas concentrations exceed the standard, dynamically adjusting the nitrogen injection flow and the retardant concentration to perform injection and spraying operation.

The invention discloses a method and a system for measuring the diffusion radius of nitrogen injected in a goaf, and belongs to the technical field of safe mining of coal mines. Comprising the steps that beam tube monitoring points are arranged on the air inlet side and the air return side of a goaf, the oxygen concentration of each monitoring point is monitored in real time, and the advancing distance and nitrogen injection process parameters of a working face are synchronously recorded; the nitrogen injection process parameters comprise the nitrogen injection flow and the embedding position of a nitrogen injection port; extracting oxygen concentration data under a non-nitrogen injection condition, establishing a function relationship of the oxygen concentration along with the change of the advancing distance of the working face through linear fitting, and calculating a corresponding heat dissipation band termination position when the oxygen concentration is reduced to a first preset threshold value based on the function relationship; acquiring oxygen concentration data of the goaf under the specific nitrogen injection flow, and determining a corresponding post-nitrogen-injection heat dissipation zone termination position and a corresponding post-nitrogen-injection oxidation zone termination position when the oxygen concentration is reduced to a first preset threshold value; and calculating the difference value between the termination position of the heat dissipation belt and the termination position of the heat dissipation belt after nitrogen injection to obtain the nitrogen diffusion radius under the nitrogen injection flow.

The invention discloses a comprehensive recovery method of nickel-cobalt-containing matte, and relates to the technical field of non-ferrous metal metallurgy, and the method comprises the following steps: step 1, oxidation blowing: adding nickel-cobalt-containing matte into an oxidation zone of a double-zone converting furnace, adding a mixed flux, blowing high-speed oxygen flow by a top-blowing spray gun, and controlling the flux rate to be 3-5% to obtain crude copper and blowing slag floating on the upper layer; the converting slag overflows into a reduction area through the upper portion of the partition wall, oxygen-enriched air, fuel and a vulcanizing agent are blown in through a side-blowing spray gun, the mass ratio of the vulcanizing agent to the hot slag is controlled to be 20-30%, the coal rate is controlled to be 3-5%, the oxygen concentration is controlled to be 25-40%, the volume ratio of CO / (CO + CO2) in smoke is controlled to be 40-70%, and after smelting is conducted for 2.5-3 h, high-nickel-cobalt matte and reducing slag are obtained. According to the method, the nickel and cobalt elements in the converting slag are directly enriched into the high-nickel-cobalt matte in the same smelting device, the problem that the Ni and Co elements are circularly enriched in the system along with the slag is solved, and meanwhile comprehensive recovery of the Ni and Co elements is achieved.

The utility model discloses module quick-splicing type discharge port ecological treatment equipment which comprises a reinforced concrete foundation, and a water inlet tank, a first-stage filtering and oxidizing area, a second-stage filtering and oxidizing area, a third-stage filtering and oxidizing area and a fourth-stage filtering area which are sequentially arranged on the reinforced concrete foundation from upstream to downstream, the first-stage filtration and oxidation area is provided with a first-stage filler bin and a first-stage contact oxidation bin, the second-stage filtration and oxidation area is provided with a second-stage filler bin and a second-stage contact oxidation bin, and the third-stage filtration and oxidation area is provided with a third-stage filler bin and a third-stage contact oxidation bin; the water inlet tank, the first-stage filtering and oxidizing area, the second-stage filtering and oxidizing area, the third-stage filtering and oxidizing area and the fourth-stage filtering area are all of independent standard module structures and are mounted on a reinforced concrete foundation through splicing. And compared with a traditional three-pond two-dam technology, the occupied area is reduced, the efficiency is improved, and the impact resistance is enhanced.

The present application belongs to the field of clean combustion of coal and collaborative disposal of industrial solid waste, and discloses a coal and red mud collaborative denitration and desulfurization clean combustion method and a boiler system, aiming to solve the technical problems of high cost of denitration and desulfurization of traditional coal-fired boiler and difficulty in utilization of red mud. Through a double-furnace series structure and a staged air distribution system, a partitioned atmosphere is constructed in the furnace, realizing in-situ integration of denitration in the reduction zone and desulfurization in the oxidation zone. The strength of the reduction atmosphere is enhanced by relying on atomized water to strengthen the water gas reaction, and the material residence time and the catalyst life are prolonged by cooperating with the countercurrent contact of the porous particles of red mud and the two-stage circulation. Meanwhile, the iron oxides in the red mud are in-situ reduced and magnetized in the furnace, and a high-purity ferroferric oxide product is obtained through crushing and magnetic separation at the furnace bottom. The present application realizes multiple goals of in-situ low-cost clean combustion of coal, large-scale consumption of red mud and high-value resource utilization, and brings environmental and economic benefits.

The utility model discloses a sulfur recovery tail gas treatment device. The sulfur recovery tail gas treatment device comprises a main body assembly, wherein the main body assembly comprises a device body and an exhaust inlet; the exhaust inlet is fixedly connected to the rear end of the device body; the treatment assembly comprises an absorption area and an oxidation area; the absorption area is arranged at the upper end of the interior of the device body, the oxidation area is arranged at the middle end of the interior of the device body, and the treatment assembly further comprises a neutralization area; the neutralization area is arranged at the lower end of the interior of the device body, gypsum and calcium carbonate are arranged in the neutralization area, the absorption area is arranged above the oxidation area, the oxidation area is arranged above the neutralization area, and the main body assembly further comprises an exhaust outlet and a filter screen plate. The problems that according to an existing desulfurization system, sulfur recovery tail gas is complex in component, large in flue gas amount and difficult to treat, the flue gas is directly discharged into the atmosphere to pollute the environment, and environmental protection parameters of the desulfurization system frequently exceed the standard due to the fact that the desulfurization system is connected for treatment at present are solved.

The invention discloses a sandstone type uranium ore prospecting method based on a fault subsidence boundary fault, and belongs to the technical field of uranium ore geological exploration. Comprising the following steps: S1, determining an underground geological structure; s2, determining fault subsidence and fault types; s3, determining the type of an oxidation zone; s4, determining the type of a gray sand body; s5, forming prediction element combination type codes; s6, determining the type of the favorable area; and S7, determining the accurate position of the favorable area, and realizing prospecting prediction. The method is an efficient and reliable prospecting technical method for the sandstone-type uranium ore, is a high summary of latest prospecting results of the sandstone-type uranium ore by analyzing deep fault subsidence and guiding shallow prospecting, and is high in directivity for prospecting work; different from traditional perceptual prospecting cognition, geological elements are coded and combined, natural element digitization is achieved, mathematical calculation is introduced into prospecting work, and the method is more scientific, more reliable and high in operability; as a specific operable prospecting method, the prospecting efficiency and the prospecting rate can be effectively improved.

The invention relates to the field of coal mining, in particular to a Y-shaped ventilation working face goaf oxidation zone continuous nitrogen injection device and method.The Y-shaped ventilation working face goaf oxidation zone continuous nitrogen injection device comprises a bearing frame, one side and the top of the bearing frame are open, walking wheels are symmetrically arranged on the side portions of the bearing frame, and an adjusting assembly is slidably installed in the middle of the inner side wall of the bearing frame; a cleaning assembly is arranged on the side portion of the adjusting assembly, a driving assembly is arranged on the side portion of the cleaning assembly, and the problems that in the traditional mode of injecting nitrogen into the goaf oxidation zone, cost is high, the pore-forming rate is low, blockage is prone to occurring, and it cannot be guaranteed that nitrogen release is always in the goaf oxidation zone are solved.

The invention discloses an ecologically fragile area coal seam water inrush danger monitoring method and system based on repeated disturbance, and relates to the technical field of mine water disaster prevention and control. The method comprises the following steps: comprehensively determining engineering geological conditions according to the vertical depth of a wind oxidation zone and coal seam characteristic parameters; performing numerical simulation by using the numerical model; based on the position of a fan roadway of each coal seam working face in a well field exploration diagram, the water-proof and waterproof coal and rock pillar setting under repeated disturbance of coal mining near a coal seam hidden outcrop in the ecologically fragile area is determined by utilizing the development heights of two zones and the height inhibition coefficients of two zones of a wind oxidation zone when the coal seam working faces are mined with different lengths; and monitoring the water inrush risk in the regional roadway according to the damage characteristics of the inclined mining roof of each working face. According to the invention, real-time and accurate monitoring of the water inrush danger of the working face near the coal seam hidden outcrop can be realized.

The invention belongs to the technical field of mine underground water disaster prevention and control, and particularly relates to a thin bedrock coal seam overlying stratum water disaster ground area treatment method which comprises the following steps: performing area treatment by adopting construction ground directional drilling grouting to block a potential water and sand bursting channel; two ground directional hole groups are arranged in a treatment range, the two ground directional hole groups are respectively a hole group D1 and a hole group D2, the hole group D1 comprises seven branch holes, maneuvering branch holes and oblique crossing test branch holes in a three-opening manner, and the hole group D2 comprises four branch holes and maneuvering branch holes in a three-opening manner; oriented branch drill holes are constructed at the position 5-10 m below a wind oxidation zone in the working face open-off cut direction at equal intervals, and high-pressure grouting is carried out, so that the purposes of reinforcing a fault zone, strengthening a protective layer and blocking potential water and sand bursting channels are achieved, and the problem of water disaster treatment of the overlying strata of the thin bedrock coal seam is solved.

The present application relates to a kind of open pit wind oxidation area modeling method, the purpose is to solve the problem of wind oxidation area in mining area, no coal area, and local coal seam wind oxidation, guide mining design, reduce invalid stripping and other technical problems, technical scheme is as follows: it includes the following steps: define database structure, establish geological database, determine weathering interface and oxidation interface and virtually a weathering oxidation surface, establish weathering oxidation surface model and coal seam surface model, weathering oxidation surface model and coal seam surface model carry out Boolean mathematical operation, draw coal seam thickness contour line;The present application can reasonably control the coal seam thickness contour line with mining value by constructing the method of virtual weathering oxidation interface, reduce the invalid stripping of wind oxidation area in mining area, save production cost, improve economic benefit.

The invention belongs to the field of working methods of geological technologies, and particularly relates to a survey and analysis method for sources of interlayer oxidation zone sandstone type uranium ore metallogenic substances. Comprising the following steps of 1, investigating and screening a target horizon through a basin sedimentary stratum and a uranium content background value; 2, deducing a sediment source area by adopting a deposition structure measurement method and the like; step 3, carrying out a target layer rock ore test, and establishing a rock mineralogy basis for mineral substance traceability comparison analysis; 4, investigating and deducing mineralogical characteristics of geoplast rocks in the source area, and comparing and analyzing the mineralogical characteristics with a target horizon to determine a sediment source area; and 5, investigating distribution, migration and enrichment rules of uranium elements in the uranium mineralization system, and determining an mineralization action system and changes in combination with regional structure evolution analysis to respectively determine an inner uranium source and an outer uranium source of the uranium ore deposit. The method is divided into two parts of sediment source investigation and analysis and uranium source investigation and analysis so as to solve the problems that an existing analysis method is relatively shallow in investigation and analysis depth, investigation and analysis objects are mostly limited to geologic bodies of modern sediment source areas of basins, material sources and uranium sources are confused and the like.

The utility model discloses a furnace body regional temperature control system of an element analyzer, which comprises a furnace body, a hearth arranged in the middle of the upper end of the furnace body, a ceramic tube arranged in the hearth, and a temperature control mechanism, the temperature control mechanism comprises an oxidation zone relay, a reduction zone relay and a two-way temperature controller, the oxidation zone relay is arranged on the upper side of the right end of the furnace body, the oxidation zone relay is arranged on the lower side of the right end of the furnace body, the two-way temperature controller is arranged at the right end of the furnace body, and the input end of the two-way temperature controller is electrically connected with an external power supply; according to the regional temperature control system for the furnace body of the elemental analyzer, the temperature of the oxidation zone and the temperature of the reduction zone can be independently controlled, so that the sulfur element can be completely oxidized in the oxidation zone, the problem that copper is molten in the reduction zone is solved, and the production efficiency is improved. The reaction efficiency of the sulfur element is further improved.

The invention discloses a bedrock top wind oxidation zone waterproof effect evaluation method, which belongs to the technical field of mine water disaster prevention and control, and comprises the following steps: firstly, collecting and analyzing various existing geological results of an evaluation area, and determining the spatial distribution range, thickness change and transverse continuity characteristics of a bedrock top wind oxidation zone of the evaluation area through multi-source data integration; then screening key geological information types directly related to the water insulation effect of the wind oxidation zone from the multivariate geological information based on the distribution characteristics of the wind oxidation zone at the top of the bedrock and the water insulation performance influence mechanism, calculating the weight value of each kind of geological information by adopting an improved CRITIC weight method, and aiming at the same geographic position, calculating the weight value of each kind of geological information; and carrying out weighted superposition integration on the standardized multivariate geological data and the corresponding weight to obtain a superposition value. According to the method, the multi-source geological information is converted into the Xd numerical value capable of being directly compared through standardization processing and weighted stacking, accurate positioning of the waterproof performance is achieved through the four-level classification standard, and a quantitative basis is provided for differential prevention and control.

The utility model discloses a kind of SCD sulfur chemiluminescence detectors, it is related to sulfide detection field.It includes sample oxidation-reduction combustion chamber, and oxidation zone and reduction zone combustion chamber are arranged inside in series, each with heating device and the temperature of oxidation zone is higher;First ceramic tube traverses two combustion chambers, one end connects chromatographic column export and oxygen pipeline to pass into sample gas and combustion-supporting gas;Second ceramic tube one end is located in the first ceramic tube of reduction zone, the other end connects hydrogen pipeline, and gap passage is formed between two ceramic tubes;Reaction chamber is connected with gap passage and vacuum system, with photomultiplier and optical filter;Ozone generator communicates oxygen pipeline with reaction chamber.It can also include tail blow pipeline, preheating device etc., and each component is linked by circuit control system.The detector is combined chemiluminescence detection by step oxidation-reduction reaction, and the sensitivity and stability of sulfur detection are improved.

This invention discloses a method for detecting the volume fraction of W-containing Laves phase in a sample, belonging to the field of metallic material testing technology. This invention provides a method for intuitively detecting the volume fraction of W-containing Laves phase in steel. The laser-clad sample containing the W-containing Laves phase undergoes surface pretreatment to remove surface oxide scale and processing burrs. Ultrasonic cleaning thoroughly removes residual oil, wear debris, and other impurities from the sample surface. High-temperature heat treatment makes the previously difficult-to-distinguish W-containing Laves phase clearly visible. Fine processing of the detection surface ensures a smooth and flat surface, providing a clear observation interface for microscopic morphology observation and compositional analysis. After sample characterization, EDS energy dispersive spectroscopy is used to obtain elemental distribution characteristics. Quantitative calculations are performed on the unoxidized areas of the sample to obtain the volume fraction of the W-containing Laves phase. This provides important data support for material composition design, heat treatment process optimization, service life assessment, failure analysis, and mechanism analysis.

This invention provides a method and system for identifying sandstone-type uranium enrichment zones, belonging to the field of mineral resource evaluation technology. The method includes: performing secondary interpretation on well logging data to obtain corresponding key parameters; establishing geochemical environment maps, calcareous sandstone identification maps, and metallogenic zone maps to form a standard model for orebody identification; determining the distribution of the top and bottom plates and metallogenic sections of the orebody in single-well profiles based on the standard model, obtaining the identification results for each single well; tracking the distribution of interlayer oxidation zones and planar metallogenic zones to generate a metallogenic enrichment zone range map of the target area; optimizing the well location deployment scheme based on the metallogenic enrichment zone range map of the target area, and outputting the metallogenic enrichment zone range map and the optimized well location deployment scheme. This invention provides an efficient and accurate method for uranium mineralization prediction and exploration, significantly improving the accuracy and efficiency of metallogenic zone identification, while optimizing well location design and reducing exploration costs.

The invention belongs to the field of uranium prospecting technical methods, and particularly relates to a roll-shaped uranium deposit prospecting method, which comprises the following steps of: (1) collecting basic geological information of a uranium metallogenic ground in a working area through geological survey; (2) establishing a working area deep space geologic structure by using a geophysical measurement technology method; (3) carrying out hydrogeological survey, and establishing a hydraulic connection between a surface water system and each stratum sand body; (4) establishing a uranium metallogenic basic geological condition analysis model, and predicting the uranium metallogenic potential of the working area; and (5) carrying out drilling verification, tracing and controlling the front line of the interlayer oxidation zone, and discovering and positioning the rolled uranium ore body. According to the method, the prospecting of the roll-shaped uranium ore deposit is decomposed into five links of ground survey, geophysical survey, hydrogeological survey, basic geological condition analysis and drilling verification, so that the technical problem that the existing prospecting exploration working technical method is relatively single is solved.

The application provides an intelligent tunneling support and gas prevention and control system for wind oxidation unstable coal seams, which collects microseismic monitoring, multi-point gas concentration time series, geological and equipment working condition data of a tunneling working face; a topological graph is constructed based on a microseismic event, the topological graph structure entropy is calculated, and a first characteristic time series representing crack evolution is obtained; multiple fractal analysis is performed on the gas concentration data, a generalized Hurst index is extracted, and a second characteristic time series representing outburst is obtained; the transfer entropy between the two time series is calculated as a weight, and a comprehensive disturbance feature vector is obtained by weighted fusion; the comprehensive disturbance feature vector and the geological and working condition parameters are input into a pre-trained capsule network and long short-term memory network hybrid model, and a future gas risk level is output, and tunneling support measures are controlled according to the risk level.

The invention belongs to the field of in-situ leachable sandstone type uranium ore, and particularly relates to a method for identifying primary color and secondary color of sandstone in basin red mixed color uranium-containing construction, which comprises the following steps of: 1, analyzing macroscopic and microscopic geologic characteristics of sandstone with different colors; 2, analyzing spatial distribution rules of sandstones with different colors; step 3, analyzing geochemical characteristics of sandstones with different colors; step 4, performing quantitative reconstruction analysis on paleoclimate-paleo environment; 5, analyzing a sedimentary facies color control rule; and 6, multi-dimensional comprehensive collaborative analysis is carried out, and the primary color and the secondary color of the sandstone are identified. According to the method, the primary color and the secondary color of the sandstone in the red mottled building can be effectively and accurately identified, the geochemical zoning in the red mottled building and the front line drawing position of the oxidation zone are correctly divided, the uranium prospecting effect and probability are improved, and the sandstone type uranium mine possibly existing in the ancient depression in the center of the basin or the fracture development part is prevented from being omitted.

The utility model discloses a device for carrying out an air flotation test on oily sludge, and belongs to the technical field of mineral oily sludge test devices. The device comprises a box body with a hollow interior and an open top, the box body is of a rectangular structure, and an inner cavity of the box body is sequentially divided into a first air flotation area, a second air flotation area, an oxidation area and an oil collection area through three overflow plates; a transverse lapping plate is also arranged at the top of the box body corresponding to the first air floatation area and the second air floatation area; an air flotation machine is arranged on the transverse lapping plate; a feeding pipe is arranged on the side wall of the box body; one end of the feeding pipe is inserted into the first air floatation area; a mud discharging pipe, a water discharging pipe and an oil discharging pipe are further arranged on the lower side of the box body; according to the utility model, the problems that the layering effect and the oil phase recovery rate are influenced and the stability of the air flotation efficiency is difficult to guarantee due to incomplete oil-water separation in the current conventional air flotation equipment are effectively solved.

This invention discloses a high-concentration urine purification and treatment box, relating to the field of locomotive sanitation equipment technology. It includes: a box body, the inner cavity of which is divided by a partition into an ammonia nitrogen stripping zone, a primary oxidation zone, a secondary oxidation zone, an electrode coupling zone, and an effluent treatment zone; a primary electrocatalytic oxidation device is installed at the lower part of the partition between the ammonia nitrogen stripping zone and the primary oxidation zone; a guide pipe and an overflow port are provided at the upper part of the partition between the primary oxidation zone and the secondary oxidation zone; a secondary electrocatalytic oxidation device is installed at the lower part of the partition between the secondary oxidation zone and the electrode coupling zone; scum collection tanks are provided in the ammonia nitrogen stripping zone, the primary oxidation zone, the secondary oxidation zone, and the electrode coupling zone; a scum discharge main pipe, from which all scum collection tanks converge via discharge pipelines; an electrocatalytic power supply; and an operation controller. This device can rapidly remove organic carbon, ammonia nitrogen, and color substances from high-concentration urine, while simultaneously clarifying the water quality, and the treatment effect is stable.

The present application provides a kind of mineralogy prospecting method of cobalt polymetallic ore in highland arid-semiarid area, comprising the following steps: (1) in the field outcrop of highland arid-semiarid area, look for red-yellow brown iron mineralization, yellow potassium jarosite surface oxidation zone;(2) collect yellow potassium jarosite mineral oxidation zone sample in yellow potassium jarosite mineral oxidation zone;(3) utilize X-ray fluorescence spectrometer to carry out main component analysis to iron oxide, yellow potassium jarosite mineral oxidation zone sample;(4) the sample is screened, and X-ray powder diffraction analysis is carried out, and whether sodium jarosite diffraction peak is analyzed.The method provided by the present application takes simple and direct mineralogical species and component structure characteristics as the prospecting mark of highland arid-semiarid area hot water jet deposition type cobalt mine, realizes to reduce prospecting cost, reduce target area range, improve prospecting efficiency, also provides a new path for re-evaluation of traditional sulfide deposit associated cobalt resource potential.

The invention relates to a method for stably producing high-solubility molybdenum calcine, and belongs to the technical field of oxidizing roasting processes of molybdenum concentrate. According to the method for stably producing the high-soluble molybdenum calcine, the device for stably producing the high-soluble molybdenum calcine is utilized, and the method comprises the following steps: (1) feeding and air draft control based on flue gas SO2 concentration and flow; (2) controlling the rotating speed of the rotary kiln based on the kiln head key point temperature to stabilize an oxidation zone; and (3) carrying out online thermal crushing treatment on oversize products so as to solve the problem of low dissolvability of caked materials. The method has the effect of stably producing the high-soluble molybdenum calcine by adjusting key process parameters in real time to counteract the influence of fluctuation of raw material components.

Device for generating a flammable gas mixture from a carbon-containing starting material, comprising a feed unit (2) for supplying the starting material to a reactor (1), wherein the reactor (1) comprises at least one oxidation zone (10) for oxidizing the starting material and a reduction zone (12) for reducing at least one intermediate product of the oxidation, wherein the feed unit (2) comprises at least one storage device (4, 34) for intermediate storage of the starting material, which has at least one opening (9, 39) for introducing the starting material, wherein the opening (9, 39) can be closed with a closing element (6, 36) which interacts with the sealing surfaces (7, 37) of a seal in the area of ​​a closing surface, characterized in that the feed unit (2) has at least one inlet lock arranged in the direction of movement of the starting material and comprising at least two gas-tight closing elements (6, 36),and that at least one closure element (6, 36) seals against a sealing surface (7, 37) of the seal which is oriented substantially in the direction of movement of the starting material and which is designed as a hollow cylinder, and that the closure element (6, 36) extends into the seal along the sealing surface (7, 37) and is pivotable about a rotation axis (5, 45) arranged outside the closure surface.