85results about How to "Solve the emission problem" patented technology

The utility model discloses a vertical evaporation system and a vertical heat pump vacuum evaporator. The system comprises a stock solution evaporator, an evaporation heat exchanger and a condensation heat exchanger, wherein the evaporation heat exchanger is arranged on the outer side of the lower part of the stock solution evaporator; a discharge port is formed in the bottom of the stock solution evaporator, and the rotating shaft is driven by the driving motor to rotate and drive the spiral blade at the discharge port to rotate; a flat heat exchange surface is arranged at the lower part of the stock solution evaporator and is used for exchanging heat with the evaporation heat exchanger; a scraping plate capable of scraping the heat exchange surface is tightly attached to the heat exchange surface; the condensation heat exchanger is arranged in the stock solution evaporator and located on the upper portion of the stock solution evaporator. By adopting the scheme, not only can the heat exchange surface of the stock solution evaporator be scraped and cleaned through the scraping plate, but also the problems of accumulation and discharge of concentrates are synchronously solved through the spiral blade at the discharge outlet at the bottom, and dirt deposition or salt hardening caused by accumulation of the concentrates at the bottom of the stock solution evaporator is avoided.

The invention relates to equipment for power generation and BOG treatment by using LNG cold energy and a near-zero emission method, and the equipment combines a BOG treatment system, a gas turbine exhaust carbon dioxide capture system, an LNG cold energy power generation system and a BOG gas turbine power generation system, so that the complementary energy of an LNG receiving station is cooperatively recovered; the problem of energy waste caused by large BOG load fluctuation quantity in the prior art is solved, and the energy utilization rate of the LNG receiving station is increased; according to the difference of the output of the LNG receiving station and the BOG output, the equipment is provided with a high-pressure compression process and a re-condensation liquefaction process to cooperatively recover BOG, meanwhile, flue gas waste heat generated after BOG combustion power generation is used for heating heat conduction oil, the heat conduction oil is used for providing a heat source for the LNG cold energy power generation system, the efficiency of the cold energy power generation system is improved, and the energy consumption of the cold energy power generation system is reduced. And meanwhile, the problem of carbon emission of discharged tail gas is solved by utilizing an efficient carbon dioxide trapping technology, so that the purposes of energy conservation and emission reduction are achieved.

The invention discloses a preparation method of a microbial agent for promoting corrosion and sequestration of livestock and poultry manure and application of the microbial agent in aerobic composting of the livestock and poultry manure, the microbial agent for promoting corrosion and sequestration of the livestock and poultry manure is prepared by adopting three strains of sphingobacterium thermophilum CICC 22013, lactobacillus plantarum-like CICC 24386 and paenibacillus polymyxa CICC 10580 and optimizing the culture and fermentation process of the three strains of bacteria, and the microbial agent for promoting corrosion and sequestration of the livestock and poultry manure is prepared by adopting the microbial agent for promoting corrosion and sequestration of the livestock and poultry manure and the application of the microbial agent for promoting corrosion and sequestration of the livestock and poultry manure and the application of the microbial agent for promoting corrosion and sequestration of the livestock and poultry manure. The microbial inoculum has the remarkable characteristics of no antagonism between strains, stable effect, strong enzyme activity, high viable count and the like, the effective viable count is up to 5.0 * 10 < 9 >-1.0 * 10 < 10 > cfu / mL, functional metabolism of microorganisms in a compost microenvironment can be directionally regulated and controlled, biodegradation of organic matters is activated, compost humification is better promoted, carbon emission in the composting process is reduced, and the microbial inoculum has a good application prospect. And the method has important significance on improving the quality of compost products.

The invention relates to a fan circulation type testing device which comprises a frame, the frame is provided with a pipeline and a fan, the pipeline is a circulation loop, one end of the pipeline is connected with an air inlet of the fan, the other end of the pipeline is connected with an air outlet of the fan, the pipeline is provided with an air inlet and an air outlet, the frame is provided with a differential pressure transmitter, and the differential pressure transmitter is provided with two pressure guide pipes. The two pressure guide pipes are respectively communicated with an air inlet and an air outlet of the fan, the pipeline is provided with a regulating valve and a pressure transmitter, and the pipeline is provided with a plurality of temperature sensors. The testing method of the fan circulating type testing device has three working condition types: normal temperature testing, and heating and humidification not being started; high-temperature test: starting heating without starting humidification; and carrying out high-temperature humidification test, and starting heating and humidification. Test is carried out in a closed pipeline, the problem of treatment before combustible gas emission can be avoided, and the problem of high-temperature gas emission can also be avoided.

The invention relates to a high-temperature refractory brick taking low-grade magnesite tailings as aggregate, which is characterized by comprising the following components in percentage by weight: 60-65wt% of low-grade magnesite tailings; 15 to 25 weight percent of bentonite; 5-10 wt% of magnesium oxide; 1-3 wt% of magnesium chloride; 5.5 to 10 wt% of a modifier; and 4-6 wt% of a binding agent. The high-temperature refractory brick blank has the beneficial effects that the low-grade magnesite tailings which are relatively high in SiO2 content and cannot be used for preparing magnesium materials are used as main materials, and a certain amount of bentonite is added to serve as aggregate, so that the high-temperature refractory brick blank is complete in binding phase, small in apparent porosity and about 14-15%, high in load deformation temperature and about 1700-1720 DEG C, and high in strength and toughness; the prepared magnesite tailings have excellent chemical mineral structures, physical properties and thermal shock resistance, so that mineral resources are saved, the problem of discharge of the magnesite tailings after mineral separation is solved, and the magnesite tailings are energy-saving and environment-friendly.

The invention relates to a high-temperature denitration method based on a RTO system under a complex working condition. The method comprises the following steps: feeding waste gas into a lower-layer heat accumulator of a heat accumulation chamber under a gas inlet working condition through a waste gas inlet valve for primary preheating; the waste gas subjected to primary preheating is fed into a denitration reducing agent dynamic mixing chamber, and is uniformly distributed and uniformly flows with a denitration agent in the mixing chamber; feeding the waste gas subjected to uniform distribution and flow of the denitration agent into an upper-layer heat accumulator for secondary preheating; the waste gas is subjected to oxygenolysis of VOCs in the combustion chamber and high-temperature denitration reaction of nitrogen oxides generated by oxidizing nitrogen-containing organic matters and a denitration agent. By arranging the denitration agent pre-gasification chamber and arranging the denitration reducing agent dynamic mixing chamber in the RTO furnace heat storage chamber, the reaction retention time of a reducing agent and waste gas in a high-temperature area is prolonged, the incomplete reaction of the reducing agent entering a smoke discharging and cooling stage along with smoke due to the fact that the reducing agent is directly added into a combustion chamber is solved, the denitration reaction efficiency is improved, and the energy consumption is reduced. The usage amount of a denitration reducing agent is reduced, and the problem that traditional SCR is high in energy consumption is solved.

The invention provides a river and lake ecological desilting construction method and a treatment system, and the method comprises the following steps: pretreating land sludge or water sludge for river and lake ecological desilting, then carrying out mud-water cascade separation and precipitation flocculation in a primary precipitation tank to obtain precipitated and flocculated sludge and supernatant, and carrying out secondary precipitation and flocculation in a secondary precipitation tank; the supernatant enters a sewage treatment system to be treated, precipitated and flocculated sludge discharged from land is subjected to mechanical filter pressing, dehydration and consolidation, the treated sludge is used for mine or pit backfilling and ecological restoration, and the sewage is returned to the primary sedimentation tank to be treated; or the settled and flocculated sludge discharged from the water is subjected to geotextile tube bag filling, dehydration and consolidation, the treated sludge is used for wetland construction and ecological restoration, and the sewage is returned to the primary settling pond for treatment. The invention has the beneficial effects of strong pertinence, good treatment effect, high productivity, no secondary pollution, safety, greenness and environmental protection aiming at sludge with different particle sizes and different working conditions.

The invention discloses multipurpose overspeed quenching oil as well as a preparation method and application thereof, and relates to the technical field of quenching oil. The multipurpose overspeed quenching oil comprises the following components in parts by weight: 85-91 parts of base oil, 5-7 parts of a cooling accelerant, 0.5-2.0 parts of an antioxidant, 3-5 parts of a dispersing agent and 0.5-2.0 parts of an emulsifying agent. According to the technical scheme, the multifunctional overspeed quenching oil adopts the emulsifying agents with the cooling promoting effect in the workpiece quenching low-temperature stage, the emulsifying agents can promote the carried-out quenching oil to be fully emulsified to form emulsified liquid in the post-cleaning stage, floating oil is avoided, and therefore smoke generated in the tempering stage can be reduced; meanwhile, the emulsified liquid formed by the emulsified quenching oil has a certain antirust effect and can be used for preparing the cutting fluid, so that the quenching oil is recycled, the problem of waste liquid discharge of enterprises can be solved, and the production cost of the enterprises is effectively reduced.

Water storage sealing grooves are formed in the edges of an inner ring annular discharging opening and an outer ring annular discharging opening of the silo top of the silo, the annular tracks of the inner ring and the outer ring of the lower portion of a rotary distributing machine body are each fixedly connected with a sealing rotary dust cover, and the edges of the sealing rotary dust covers stretch into the water storage sealing grooves. The rollers are tightly attached to the bottom of the water storage sealing groove; the sealed rotary dustproof cover body is provided with an opening corresponding to the discharge port of the rotary material distributor body; a dust removal type pressure relief device protruding upwards is arranged on the upper portion of a discharging opening of the rotary distributing machine body. According to the full-closed rotary distributing machine for the silo, provided by the invention, the silo is fully closed, so that the problem of unorganized discharge is solved; the dust removal type pressure relief opening with a plurality of layers of filtering dust removal nets or dust removal cloth bags solves the pressure relief problem of pressure generated by downward movement of materials during ore unloading, and ensures that the purposes of clean production and environmental protection standard reaching are achieved.

The invention discloses an indoor humidity control method and device of air conditioning equipment and the air conditioning equipment, and belongs to the technical field of air conditioners. The condensate water treatment system of the air conditioning equipment comprises an indoor water collecting tank used for collecting condensate water generated by an indoor heat exchanger and an indoor humidifying device used for discharging the condensate water accumulated in the indoor water collecting tank to the surface of the indoor heat exchanger. Under the condition that the current indoor humidity is smaller than the target indoor humidity, if the deviation between the current indoor humidity and the target indoor humidity is larger than a first humidity deviation threshold value, an indoor humidifying device is turned on to discharge condensate water to the surface of an indoor heat exchanger; and operating parameters of the air conditioning equipment are adjusted based on the first humidity compensation parameters matched with the current operating mode of the air conditioning equipment. According to the invention, the condensate water discharge problem is solved, and the technical problem that the indoor humidity is lower than the comfortable humidity range of a user during the operation of the air conditioning equipment is solved.

The present invention provides a drainage structure of a corrugated floor of a train, comprising a corrugated floor, a drainage groove, a heating device and a drainage valve. The drainage structure has holes on the upper surface, and the hole positions correspond to the holes at the troughs of the corrugated floor to meet the drainage requirements of the vehicle body. The drainage groove is provided with a heating device at the bottom to effectively solve the problem of freezing of the drainage holes in a cold environment. The drainage groove is provided with a drainage valve at the bottom, and the drainage valve is normally closed to effectively seal the vehicle body at the drainage structure to meet increasingly higher sealing requirements. The drainage groove can be used to collect condensed water from the vehicle body, and then the drainage valve is opened regularly to solve the problem of condensed water being discharged everywhere.

The invention provides a spark source atomic emission spectrometry determination method for acid-soluble aluminum and inclusion aluminum, and belongs to the technical field of assessment of inclusions in steel. The spark source atomic emission spectrometry determination method for acid-soluble aluminum and inclusion aluminum comprises the following steps: establishing a calibration curve of all aluminum, then determining integral intensities of inclusion aluminum, all aluminum and acid-soluble aluminum in a sample under corresponding conditions, and calculating the intensity of the inclusion aluminum by using a difference value between the integral intensities; selecting two standard samples with adjacent strength according to the strength of aluminum inclusion in the sample, and calculating a calibration coefficient K according to the aluminum content Al% lt; the excitation rate F is calculated according to the peak integral intensity of the inclusion aluminum and the integral intensity of the total aluminum in the 0.0007% standard sample, the inclusion aluminum content Als% is equal to K * F * (IAlt-IAls), and the content of the acid-soluble aluminum is equal to the difference between the content of the total aluminum and the content of the inclusion aluminum. According to the method, the accuracy of a measurement result is effectively improved while high analysis speed, low cost and simplicity and convenience in operation are ensured.

The present invention discloses a coal gangue thermal activation calcination process based on a cement burning system, specifically, the coal gangue is first pretreated, then calcined and cooled, and then ultra-finely ground to obtain a high-activity calcined coal gangue mixed material; wherein, the low calorific value coal gangue is first sent to an indirect pre-burning device for rotary pre-burning, then sent to a rotary kiln for thermal activation calcination, and then sent to a grate cooler for cooling; the drying heat source of the indirect pre-burning device is the hot flue gas at the tail of the rotary kiln; the high calorific value coal gangue is directly sent to an indirect thermal activation device for thermal activation and rotary calcination, and then enters a single-drum cooler for cooling; the drying heat source of the indirect thermal activation device is the hot flue gas from the grate cooler of a normal cement clinker cement burning system; the volatile organic waste gas generated in the indirect pre-burning device and the indirect thermal activation device is sent to the kiln head for combustion. The present invention solves the environmental emission problem of volatile organic matter and the risk problem of suspended calcination of coal gangue in a preheater.

The utility model relates to the field of refractory ceramics, in particular to compacting equipment for refractory ceramic processing, which comprises a mounting top plate, a hydraulic push rod and a lower template, a fixing column is arranged at the upper end of a mounting bottom plate, the mounting top plate is arranged at the upper end of the fixing column, the hydraulic push rod is arranged at the upper end of the mounting top plate, and the lower end of the hydraulic push rod is connected with the upper end of an upper template. The automatic demolding device has the advantages that the hydraulic push rod and the electric push rod are used in cooperation, accurate control over vertical movement of the demolding plate is achieved, the demolding speed is increased, the stability of the demolding process is guaranteed, and the automatic demolding device is convenient to use and high in practicability. Deviation during demolding is avoided, so that the forming precision and consistency of the ceramic product are improved; due to the design of the forming groove formed by attaching the side edge sealing plate and the lower die plate, the forming area is effectively sealed, material leakage or gas mixing in the compaction process is prevented, and the forming quality is guaranteed.

The present invention relates to a method for treating radioactive waste tail gas by using plasma technology, comprising the steps of: performing plasma gasification and melting treatment on radioactive waste in a combustion chamber; solidifying the glass body, and desulfurizing and denitrifying the flue gas in a dry and water-free high-temperature catalytic ceramic filter; fully burning the unburned combustible materials in the flue gas in the second combustion chamber; the flue gas enters the SNCR denitrification device for denitrification; the flue gas enters the G-L heat exchanger for heat exchange; the flue gas enters the semi-dry quenching tower for heat exchange; the flue gas enters the bag filter for dust removal; the flue gas at the bag filter outlet is filtered through a high-efficiency combined filter. The beneficial effects of the present invention are: in the high-temperature section, most of the dust and ash are filtered out by the high-temperature catalytic ceramic filter, and then through the bag filter, most of the nuclides in the dust and fly ash are solidified by the glass body or intercepted in the fly ash, and the remaining small amount of I-129 and Tc-99 are purified by the high-efficiency combined filter; clean and qualified flue gas is obtained.

The present invention discloses a system for controlling and coordinating the unorganized emission of waste gas from a delayed coking coke storage tank. The fully enclosed system of the coke storage tank wraps the coke storage tank, sewage treatment tank, top coke grabbing crane, open-air trestle of the crane, automobile transportation channel and loading hopper in the delayed coking process, including a coke storage tank solar film enclosed system, a ventilation system in the shed, and a dust suppression system for grabbing and unloading coke in the shed; the coke storage tank solar film enclosed system is a membrane structure shed; the dust suppression system for grabbing and unloading coke in the shed includes a dust suppression spray cannon, which is used to spray natural plant deodorizing liquid to coke powder in the shed when grabbing and unloading coke; the waste gas collection system includes an exhaust hood, a resistance balancer, an electric air volume regulating valve, and a waste gas collection pipe network; the waste gas treatment system includes a fan, a cooling tower, a demister, and a spray tower. The present invention solves the problem of unorganized emission of waste gas from delayed coking, has good waste gas control effect, covers a wide area, and does not affect the normal progress of the main production process.

The invention discloses a modified red mud preparation and ammonia fluidized bed catalysis-heat storage combustion method, and belongs to the technical field of new energy and solid waste recycling. Aiming at the problems of high ignition energy, unstable combustion, NOx emission and the like in ammonia combustion, the method comprises the following steps: adding a hydrochloric acid solution with a sodium-acid ratio of (1: 0.26)-(1: 0.28) into red mud, and stirring to fully dissolve the red mud; and cooling to room temperature, filtering and washing until the pH value is neutral to obtain the modified red mud. Not only can NOx emission of NH3 combustion be reduced and NH3 combustion efficiency be improved, but also stockpiling pressure of red mud is relieved, utilization of carbon-containing energy is reduced, metal resources are saved, huge economic benefits are formed, and solid waste resource utilization is realized.

The invention discloses a preparation method of a photovoltaic crystalline silicon polishing agent, which comprises the following steps: step 1, adding a surfactant into an organic solvent for fully dissolving to prepare a mixed solution for later use; and step 2, adding basic alkali liquor and deionized water into the mixed solution in the step 1, and uniformly stirring until all components in the solution are uniform. The photovoltaic crystalline silicon polishing agent has the beneficial effects that the brightening agent and the additive with a protective effect are fully fused into the basic alkali liquor, so that the polishing efficiency of the photovoltaic crystalline silicon polishing agent on the photovoltaic crystalline silicon is improved when the photovoltaic crystalline silicon polishing agent is used, meanwhile, the smoothness of the back surface of the photovoltaic crystalline silicon is ensured, the reflection efficiency of the photovoltaic crystalline silicon on penetrating light is improved, and the service life of the photovoltaic crystalline silicon is prolonged. In addition, the photovoltaic crystalline silicon polishing agent can effectively reduce the concentration of alkali liquor in the polishing process of photovoltaic crystalline silicon, the polishing process is controllable, the problem of emission caused by organic alkali liquor can be effectively avoided, and the photovoltaic crystalline silicon polishing process is more environmentally friendly.

The invention relates to the technical field of ship design and manufacturing, and discloses an SCV waste water waste heat recovery comprehensive cold-proof system which comprises a submerged combustion type vaporizer, a waste water filter and a ballast tank, the submerged combustion type vaporizer is connected with the waste water filter through a pipeline, and a heating coil is arranged in the ballast tank and connected with the waste water filter through a pipeline. The waste water filter is connected with a heating coil in the ballast tank through a heating pipeline, and the tail end of the heating coil is connected to an outer plate of the ballast tank through a broadside short pipe and communicated with the outside. The submerged combustion type vaporizer is applied to the floating storage revaporization device, the submerged combustion type vaporizer is used for vaporizing liquefied natural gas into waste water generated in the process of natural gas, the waste water discharge problem is firstly solved, meanwhile, waste heat of the waste water is also used for conducting auxiliary heating on the ballast tank under the extremely cold working condition, and the waste water is recycled. The steam consumption of the ballast tank of the ship under the cold working condition is reduced, and the feasibility of applying the submerged combustion vaporizer to a floating storage revaporization device is achieved.

The present invention discloses a gas-heated deposition furnace and system, including a furnace body and a heating device for heating an object to be densified in the furnace body, wherein an air outlet penetrating into the inner cavity of the furnace body is arranged at the upper part of the furnace body, and the heating device includes at least one radiation tube extending into the furnace body for heat dissipation and a burner for heating the radiation tube by burning the tail gas in the air outlet pipe. The heating method of the deposition furnace is changed to a gas-heated radiation tube form, and the fuel is mainly the tail gas of the deposition furnace and supplemented by natural gas, which not only saves a lot of electric energy, but also uses the tail gas of the deposition furnace as a heat source to heat the deposition furnace, and at the same time, the combustion flue gas from the gas-heated radiation tube preheats the carbon source gas, truly achieving energy saving and environmental protection of the deposition furnace system.

The invention relates to the field of chemical pulping, and discloses a method for synchronously preparing sulfate pulp and phenolated lignin as well as the sulfate pulp and the phenolated lignin thereof. The method for simultaneously preparing sulfate pulp and phenolated lignin comprises the following steps: mixing a wood fiber raw material, water and a cooking reagent, and adding phenol; after cooking, obtaining a mixture of residues and black liquor; collecting residues to obtain sulfate slurry; and collecting the black liquor, and carrying out acid precipitation to obtain a precipitate which is phenolated lignin. The phenolic hydroxyl group content of the prepared phenolated lignin is 3.5-6.0 mmol / g, the kappa number of the prepared sulfate pulp is 23.0-110.0, the viscosity of the prepared sulfate pulp is 900-1350 mL / g, and the whiteness of the prepared sulfate pulp is 12.0-30.0% ISO (International Standardization Organization). The method disclosed by the invention has a remarkable lignin modification effect during fiber separation, realizes efficient utilization of resources and reduction of environmental burden, and also has relatively high industrialization potential.

The invention provides the preparation method of the material with the performance of photocatalytic reduction of carbon dioxide (CO2), the material can selectively convert carbon dioxide into carbon monoxide (CO) under mild conditions, and a raw material is provided for preparation of chemicals with higher value. According to the invention, nickel chloride hexahydrate (NiCl2. 6H2O), zinc nitrate hexahydrate (Zn (NO3) 26H2O) and dimethylimidazole (C4H6N2) are respectively used as a nickel source and a zinc source, an acetonitrile solution (MeCN) of sodium borohydride (NaBH4) is used as a reducing agent, and the nickel cluster loaded porous metal organic framework (Ni-ZIF-8) material can be prepared through a NaBH4 reduction treatment method. According to the method disclosed by the invention, the loading capacity of nickel can be simply controlled by controlling the input NiCl2. 6H2O, and the Ni cluster fixed on the ZIF-8 can be used for reducing the reaction potential barrier in the CO2 photoreduction process and inhibiting the competition of hydrogen evolution reaction (HER) at the same time, so that the activity of the CO2 photoreduction reaction is favorably improved. Compared with unmodified ZIF-8, the Ni-ZIF-8 material has higher visible light absorptivity, carbon dioxide molecule activation capacity and charge separation efficiency, shows excellent activity, selectivity and stability for synthesizing carbon monoxide (CO) through photocatalytic conversion of CO2 under the illumination condition, realizes the CO yield of 15.02 mmol g <-1 > h <-1 >, and has electron selectivity of 94%.

This invention provides a method for collecting gases from the pre-splitting blasting of steeply inclined, extra-thick coal seams, comprising: S1: calculating the blasting parameters for pre-splitting blasting of steeply inclined, extra-thick coal seams and determining the construction location of the blasting holes; S2: combining the blasting parameters, empirical formulas, and theoretical calculations to determine the composition and pressure of the harmful gases generated after the pre-splitting blasting of steeply inclined, extra-thick coal seams, and fixing a gas collection device at the orifice of the blasting hole; S3: selecting an extraction system based on the content of the harmful gases generated after blasting, and discharging the harmful gases collected by the gas collection device through the extraction system; S4: comparing the composition and content of the harmful gases generated after blasting with the gas drawn into the extraction system to verify the extraction effect of the extraction system. The technical solution provided by this invention can solve the problem in existing technologies of not discharging the harmful gases generated after pre-splitting blasting.

The invention relates to the technical field of natural gas processing equipment, in particular to an efficient and energy-saving natural gas processing device which comprises a liquid cooling assembly and a natural gas pipeline, the liquid cooling assembly comprises a cold box arranged on a base, a metal cold box and a condenser are arranged on the upper portion and the lower portion of the inner wall of the cold box, and a gas inlet pipeline of the cold box communicates with the interior of the natural gas pipeline; the efficient energy-saving assembly comprises a compressed air assembly, a cold air utilization assembly, a cold air conveying assembly, a hot air conveying assembly and a cold air heat preservation assembly. Therefore, the device is reasonable in structure, exhausted cold air can be efficiently recycled, the problem of cold source emission is effectively solved, accurate separation of cold air and hot air is achieved through a fine secondary treatment process, in the process, the treated cold air can replace part of the refrigerating function of a condenser and a refrigerant, energy is saved, emission is reduced, and the energy-saving and environment-friendly effects are achieved. And the refrigerating efficiency is greatly improved, the treated hot air can meet the heating requirement of related high-temperature equipment, energy conservation and efficiency improvement of the heating equipment are achieved, and the overall application performance is excellent.

This application discloses an ammonia-fume mixing device, relating to the field of flue gas denitrification technology. It includes an ammonia injection grid module, an ammonia nozzle, a primary mixing impeller, a primary impeller shaft, a secondary mixing impeller, and a secondary impeller shaft. Each ammonia injection grid module has an independent inlet header, one end of which is connected to an external ammonia supply system, and the other end is connected to the ammonia nozzle. Each ammonia injection grid module has multiple primary mixing impellers, which are mounted on the ammonia injection grid module via the primary impeller shaft, rotating around the primary impeller shaft under the drive of the flue gas. The secondary mixing impeller is located directly above the ammonia injection grid module, with each secondary mixing impeller corresponding to one ammonia injection grid module. It is fixed to the flue gas duct via the secondary impeller shaft, and the axial direction of the secondary mixing impeller is the same as the flue gas flow direction, rotating around the secondary impeller shaft under the drive of the flue gas. This solves the problem of how to effectively avoid uneven ammonia-fume mixing and reduce NO in the flue gas. x The issue of emissions.

The invention relates to the technical field of vanadium recovery, in particular to a vanadium-containing mother liquor wastewater recycling process. Comprising the following steps: directly blending the vanadium-containing mother liquor wastewater generated by oxidizing, hydrolyzing and precipitating vanadium in the process of extracting vanadium from the chlorination-process titanium dioxide waste acid into the chlorination-process titanium dioxide waste acid to circularly extract vanadium. According to the method, pentavalent vanadium in the vanadium-containing mother liquor wastewater is reduced into tetravalent vanadium by utilizing a large amount of ferrous ions in the titanium dioxide waste acid feed liquid, then the tetravalent vanadium and the titanium dioxide waste acid are neutralized, extracted and recycled, reduction is carried out by utilizing the waste acid, extra agents such as a precipitator or a reducing agent do not need to be used, the agent cost is saved, and the energy consumption is reduced. Meanwhile, the vanadium-containing enriched slag does not need to be subjected to complex purification treatment, the process is simple, the cost is low, and the recovery rate of vanadium can be increased.

The utility model discloses a cyclone spray tower which comprises a tower shell, an air inlet, an air outlet, a water cyclone barrel, a leaf disc, a water pipe fitting, a water collecting tank, a water tank and a water pump, the air inlet and the air outlet are positioned at the top of the tower shell, the water cyclone barrel is arranged inside one side of the tower shell, the leaf disc is arranged inside the other side of the tower shell, the water collecting tank is arranged below the water cyclone barrel, and the water tank is arranged below the water collecting tank. A water tank frame is arranged below the water tank, water pipe fittings are arranged on the side wall of the tower shell and located below the air inlet and the air outlet in the tower shell, and the water tank is connected with a water pump. By utilizing the cyclone spray tower provided by the utility model, the working purpose of purifying waste gas is achieved by increasing the contact area of water and air for adsorption and purification, the problem of waste gas emission in industrial production is solved with lower cost, in addition, the waste gas can be effectively purified and treated to reach the emission standard, convenience is provided for production, and the production efficiency is improved. The efficient treatment capacity of the cyclone spray tower effectively protects a tail end filtering system, and the service life of the tail end filtering system is prolonged.

A method for capturing and converting CO2 generated by pyrolysis of waste rubber comprises the following steps: (1) pyrolyzing pretreated waste tires at high temperature to generate gas and solid products; (2) enabling gas generated in the pyrolysis process to sequentially pass through a gas-solid separator and a fractionating tower to obtain a gas-phase component, a gasoline fraction, a diesel fraction and tar; (3) carrying out purification treatment on the gas-phase component through a gas condenser and a selective adsorption unit, removing impurities to obtain a purified gas-phase component, capturing CO2 in the purified gas-phase component by using an organic alcohol amine absorbent, and collecting separated gaseous hydrocarbon; (4) at least 30-50% of the captured CO2 is converted into methanol by a thermocatalytic hydrogenation process; and (5) reinjecting the residual CO2 to the bottom of the pyrolysis reactor. According to the method, the problem of CO2 emission in the prior art is solved, the yield of the light oil product is remarkably improved, and resource utilization of CO2 is realized.

The invention discloses a drainage structure for protecting water and soil resources in mountainous areas, belongs to the technical field of drainage in mountainous areas, and provides the following scheme that the drainage structure comprises a composite drainage ditch and an automatic filtering and pollution discharging mechanism, and the automatic filtering and pollution discharging mechanism is located below a water source diversion port; the multiple interception structures are combined to form the trash rack, water flow can intercept sundries and large silt, the pretreatment effect is achieved, then, under driving of the driving assembly, the interception structures can rotate at a constant speed, the interception structures alternately enter the downward interception areas, and therefore the trash rack is formed. When one end of the interception structure enters the cambered surface protruding section, the interception structure retracts, then sundries and impurities smoothly enter the collecting assembly to be collected, the interception structure after removal is reset again and put into use again, the interception effect is circularly guaranteed, and the problem of interception failure caused by long-term stress and sundries coverage of a traditional fixed interception structure is solved; the stable interception efficiency is ensured.

The utility model relates to the field of sensor installation especially relates to a sensor exchange device for special operation robot, including the extension cylinder, the one end center place of extension cylinder is welded with the locating block, and the center place of extension cylinder and locating block is equipped with the locating hole, be equipped with detection assembly in the locating hole, and the one end of extension cylinder is installed with solenoid valve, detection assembly includes the thread groove of opening in the extension cylinder one end outer wall center place, the temperature sensing probe of sliding connection in the inner wall of locating hole, be equipped with the thread block of temperature sensing probe one end outer wall and weld the sealing disc of thread block one side outer wall. The utility model starts solenoid valve and closes the one end of extension pipe, and the rotation block drives and thread block rotation loosens, and temperature sensing probe is extracted from locating hole, reduces the object discharge capacity, is convenient for replacing sensor, is convenient for sealing, solves a large number of emission problems.