39results about How to "Reach out" patented technology

The invention relates to a preparation method of a heavy metal ion imprinting polymer porous small ball and a film based on sulphonic acid resin. The molecular imprinting polymer small ball and film are prepared from a casting solution by a phase inversion method, wherein the casting solution comprises a linear polymer, the sulphonic acid resin, template heavy metal ions, a pore-forming agent and a solvent. The casting solution dropwise or linearly enters a coagulating bath by oscillation of a pinhead, and forms the polymer small ball or film after coagulating and shaping. The size dimension of the ion imprinting polymer porous small ball can be controlled by controlling the extrusion pressure and oscillation frequency. The ion imprinting polymer porous small ball or film has the porous characteristic, simultaneously forms metal ion imprinting sites in the polymer and on the surface of the polymer, can be used for removing heavy metal ions or enriching and recovering noble metal in water, and can be regenerated and cyclically used after acid washing.

The invention discloses a method of potato virus eradication, which includes the following steps: taking a material for virus detection, carrying out the tissue cultivation to determined material with virus, and then establishing a simple-bud material; carrying out reproducing successive-transfer cultivation to the established simple-bud material and ultra-low temperature storage treatment to the simple-bud material, reproducing the survived material after ultra-low temperature storage, and then carrying out virus detection to the survived material; and reproducing the material without virus after detection to be used for producing seed potato without virus. Compared with the traditional stem-tip virus eradication, the method of the invention has lower operation difficulty and higher virus eradication rate, and the virus which can not be easily eradicated by stem-tip cultivation can be eradicated by the method. The invention has excellent social and economic values and wide application prospect.

The invention relates to a low-energy and intelligent three-dimensional ecological self-refluxing circulation nitrification method and apparatus. Wind driven generators are disposed aside of an anaerobic tank; and a solar power installation is disposed on a roof above the anaerobic tank. The tank is provided with at least one three-dimensional ecological self-refluxing circulation nitrification processing unit; each unit is divided into an ecological deodorization zone and a circulation nitrification reaction zone from top to bottom; each reaction zone is divided into an aerobic zone, a facultative zone, a sedimentation zone and an anaerobic zone from inside to outside, wherein the aerobic zones are provided with aeration components. The sewage flows through the anaerobic zone to the aerobic zone and enters the facultative zone for reaction and primary sedimentation after reacting in the aerobic zone through an aeration effect; partial of the sewage mixed liquid is aerated and enters the aerobic zone again; the other partial of the sewage self-refluxes to the anaerobic tank through a sludge diversion pipe; and a supernatant in the sedimentation zone finally flows out from a collecting pipe. The aeration power and gas-water density difference allows the sewage realizing self-refluxing circulation nitrification among every zone, so that pollutants can be effectively removed and the sewage can meet discharge indexes such as deodorization, nitrogen and phosphorus removal and total nitrogen in upgrading and reconstruction of municipal sewage plants.

The invention relates to a tectonic coal large-diameter well completion bidirectional reciprocating type drilling three-level reaming drilling tool which is suitable for underground coal mine. A one-level reaming and a two-level reaming are completed with a plunger drill bit, a three-level reaming is completed with a cutter wing, and the activation of the reaming is adopted with a hydraulic control mode; springs are used for converting a fixed pressure value of the reaming pumping pressure to a pressure range with an appropriate range, and the operability of controlling the reaming pressure can be improved; and a three-level reaming recycling assembly drilling tool inner pipe is composed of an upper section and a lower section which are connected and sealed through an inner pipe connectingseal ring, and the down-moving of a cutter wing blocking mechanism and the cutter-out of the cutter wing can be completed step by step. The drilling reaming with a horizontal well, a vertical well, aslant well and the other modes can be achieved at the tectonic coal and other softer formation, a three-level reciprocating type reaming operation of one of hole segments can be completed according to engineering requirements, and the requirements of the tectonic coal coal-bed gas exploitation and the other engineering activities can be met.

The invention provides a method for improving the rate of fruit without sepal, belonging to the technical field of fruit tree production. The sepal removing agent is composed of 6000 times of flusilazole emulsifiable concentrate and 300 times of PBO (poly(p-phenylene-2,6-benzoxazole)). The application method comprises the steps of spraying the 6000 times of flusiazole emulsifiable concentrate in the period when pear flower gets white and then spraying the 300 times of PBO at bloom stage. The combination and application method of the two reagents with different concentrations are simple and easy, key links of pear cultivation technique are fully utilized, sterilization and disease prevention are carried out in production, and fruit sepal removing rate is synchronously carried out in the technical processing of regulating fruit growth and development, thus saving labour force and time cost, obviously increasing the rate of pear without sepal and obviously improving appearance quality of fruit.

The invention provides a pre-locating shake-off layering harvester, which solves the problems in the prior art that winter jujubes are difficult to harvest and the harvesting efficiency is low. The pre-locating shake-off layering harvester comprises a stander, a wide-tooth shake-off mechanism, a layering pre-locating mechanism, a distance measuring mechanism, a sector unfolding collection mechanism, a roller-shaft baffle plate transmission mechanism and a threaded roller grading mechanism, wherein the stander is provided with a parallel four-rod protraction mechanism, and the parallel four-rodprotraction mechanism is driven by a first motor arranged on the stander; the wide-tooth shake-off mechanism is arranged on the parallel four-rod protraction mechanism, and the wide-tooth shake-off mechanism is driven by a second motor arranged on the stander to vibrate and used for shaking off fruits; the layering pre-locating mechanism is arranged on the layering pre-locating mechanism; the distance measuring mechanism is installed on the front end of the stander and used for detecting a distance to a trunk; the sector unfolding collection mechanism is arranged below the wide-tooth shake-off mechanism; one end of the roller-shaft baffle plate transmission mechanism is disposed on a lower end opening of the sector unfolding collection mechanism; and the threaded roller grading mechanismis arranged on one side of the roller-shaft baffle plate transmission mechanism and used for grading the transferred fruits.

The invention discloses a method for simultaneously achieving two-stage catalytic pyrolysis, debromination and light-fraction conversion of pyrolyzed oil of waste printed circuit boards. The method comprises the following steps that S1, the waste printed circuit boards are crushed, nonmetal powder is extracted and put into a first temperature zone of a two-stage heating pyrolyzing furnace, and meanwhile a composite catalyst is put into a second temperature zone of the two-stage heating pyrolyzing furnace; S2, the first temperature zone and the second temperature zone are heated simultaneously, and the pyrolyzed oil is collected after pyrolyzation is completed, wherein according to heating conditions, the first temperature zone is heated to 400 DEG C to 450 DEG C, the temperature is kept for 1 h to 1.5 h, the second temperature zone is heated to 450 DEG C to 500 DEG C, and the temperature is kept for 1.5 h to 2.5 h. The composite catalyst is prepared from, by weight, 35-65 parts of Al2O3 and 65-35 parts of CaCO3. According to the method for simultaneously achieving two-stage catalytic pyrolysis, debromination and light-fraction conversion of the pyrolyzed oil of the waste printed circuit boards, efficient dehalogenation and light-fraction conversion of the pyrolyzed oil of the waste printed circuit boards can be achieved simultaneously, and the technical bottleneck of resource recovery of the nonmetal powder of the waste printed circuit boards is solved.

The invention provides a method and device for treating wastewater containing organic matters. The device comprises a wastewater pre-heater, an evaporator, a scaling device, a steam compressor and a condensed water collector. The invention further provides the method for treating the wastewater containing the organic matters by adopting the device. The method and device for treating the wastewater, provided by the invention, have the advantages of safety and reliability, simple equipment, low operation cost, obvious energy-saving effect and the like.

The invention discloses a method for pyrolysis oil debromination and lightening of a waste circuit board. The method comprises the following steps that S1, the waste circuit board is crushed, nonmetal powder is extracted and put into a pyrolysis furnace, and a composite additive is added; and S2, the material is heated to be 400-500 DEG C for 1-2 h till the material is completely pyrolyzed, and pyrolysis oil is collected, wherein the composite additive comprises following components of, by weight, 10-90 parts of molecular sieve 5A and 10-90 parts of CaCO3. Pyrolysis oil dehalogenation and lightening of the waste circuit board can be simultaneously realized, the method can be widely used for treating and disposing or recycling of the waste circuit board, and good application prospects are achieved.

The invention relates to a chain grate and rotary kiln pellet roasting flue gas denitration system and method. The chain grate and rotary kiln pellet roasting flue gas denitration system can reasonably utilize the heat of the chain grate and rotary kiln flue gas, and nitrogen oxide in the flue gas is removed according to the nitrogen oxide generation mechanism. Therefore, the purpose of removing nitric oxide in the flue gas is achieved.

The invention provides a method for preparing fermentable sugar and lignosulfonate from furfural residues. The method comprises the following steps of 1, ethanol and sulfite-based pretreatment comprising that furfural residues reacts with sulfite in an ethanol solution and reaction products are subjected to solid-liquid separation, 2, countercurrent washing comprising that the solids obtained by the step 1 are subjected to multistage countercurrent washing by an ethanol washing liquid, 3, enzyme hydrolysis comprising that the solids subjected to the multistage countercurrent washing are subjected to cellulase hydrolysis, and 4, ethanol recovery comprising that the liquid obtained by the solid-liquid separation in the step 1 is mixed with the washing liquid recovered after the countercurrent washing in the step 2 and the mixed solution is subjected to pressure reduction condensation to form ethanol and lignosulfonate. The method utilizes combination of an organic solvent method and a sulfite method. Through the sulfite method, furfural residues are pretreated so that furfural residue sample hydrophily is improved and lignin removal and hydrolysis rate increasing are realized. Through the organic solvent method, the raw materials are pre-treated so that pretreatment liquid recovery and recycle are realized and a production cost is reduced.

The invention relates to a method for performing phosphorite magnesium-removal and preparing flame retardant by organic acid, wherein the method includes steps of mixing low-grade raw ore with diethylenetriaminepenta acid to perform acidolysis and phosphoritemagnesium-removal reaction; after preserving temperature and separating solid from fluid, acquiring phosphorus concentrate and magnesium-removal waste liquid; adjusting pH value of magnesium-removal waste liquid to 4-7, adding equal volume of ethanol solution to perform aging treatment; separating solid from fluid to acquire initial product and fluid phase of the flame retardant; performing depressurizing distillation on the fluid phase twice and acquiring the recycled ethanol and secondary product of the flame retardant; at last, compounding the initial product and secondary product of the flame retardant with tetramethylolmethane and tripolycyanamide, and acquiring the two flame-retardant products with excellent performances. After being treated by middle and low grade phosphorites, the low-magnesium content phosphorus concentrate is acquired; the recycle of magnesium-removal waste liquid is realized. The method is environment-friendly and economic.

The invention relates to the technical field of numerical control bending machines, in particular to an oil-electricity hybrid electro-hydraulic numerical control bending machine with a deflection compensation structure, and the oil-electricity hybrid electro-hydraulic numerical control bending machine comprises a bending lathe. According to the oil-electricity hybrid electro-hydraulic numerical control bending machine, a compensation mounting cavity, hydraulic oil cylinders, a mounting base, a resistance strain sensor, a control panel and a data display screen are arranged, so that the hydraulic oil cylinders can drive a bending die base to stretch out and draw back to different degrees according to the requirement of deflection compensation; and the resistance strain sensor senses deformation conditions of all point positions of a bending cutter and the bending die base and transmits signals to the control panel in real time, and the control panel processes information and dynamically sends instructions to all the hydraulic oil cylinders after receiving the signals of the resistance strain sensor. The hydraulic oil cylinders can stretch out and draw back to different degrees according to the requirement of deflection compensation, the working efficiency of the oil-electricity hybrid electro-hydraulic numerical control bending machine is improved, the complexity and inaccuracy of manual debugging are avoided, and the precision and the qualified rate of workpiece machining are improved.

The invention provides an ozone flow-field active-molecule distributor, comprising a main pipe, a plurality of parallel and equally spaced branch pipes communicated with the main pipe, and a pluralityof nozzles arranged on the branch pipes, wherein the branch pipes extend into a flue section and are arranged to be perpendicular to the flue section; the nozzles are connected with the branch pipesthrough single-path swivel joints; each of the single-path swivel joints comprises a fixed end and a swivel end; the fixed ends are fixed onto the branch pipes, and the swivel ends are provided with external threads and internal threads; the nozzles are fixed on the swivel ends via the internal threads on the swivel ends; the outer surface of each swivel end is provided with a flow disturbing mechanism; the nozzles are arranged at an equal interval along the direction of the branch pipes; the nozzles on adjacent branch pipes are staggerly arranged; and the nozzles are located on the sides, facing incoming flue gas flow, of the branch pipes. After flue gas is treated by the active-molecule distributor, the efficiency of ozone oxidation of oxynitrides is greatly improved.

The invention provides a steam vulcanization process for a power cable. The steam vulcanization process is characterized in that a cable conductor is discharged, the cable conductor enters a steam vulcanization device through a first wire drawing device, and after the cable conductor completes steam vulcanization crosslinking, the cable conductor is guided and wound at a take-up roller through a second wire drawing device. The steam vulcanization process is reasonable in structural design; a wire passing ring is divided into a plurality of arc-shaped wire plates and a driving unit is used forrealizing the movement of a supporting component in the sliding rail direction, so that the movement of the arc-shaped wire plates is realized, the purpose of outward expansion or contraction is achieved, an adjustable pull force is provided for the cable conductor, the cable conductor is tensioned in the middle of a vulcanizing pipe, the drooping probability of the cable conductor is reduced, andthe waste of resources is reduced.

According to a biogas liquid reducing treatment and a biogas collaborative purification system and purification method disclosed by the present invention, by adding plant ash into the biogas liquid, alkalinity and pH value of the biogas liquid are increased, biogas liquid COD and suspended matter concentration of the biogas liquid are reduced, and by film decompression concentration technology, ammonia is recovered from the biogas liquid and biogas liquid concentration is performed, and therefore an objective of ammonia nitrogen content control in the biogas liquid and biogas liquid reducing treatment is achieved. In the biogas liquid film decompression process, ammonia enrichment can be further achieved, biogas can be desulfurized and decarburized at the same time by using enriched ammonia from the biogas liquid, and therefore preliminary purification of the biogas is achieved, then ammonia gas (NH3) entrained in the biogas is washed and CO2 in the biogas is further absorbed by using concentrated biogas liquid with high pH value, and therefore the biogas is purified and nitrogen content in the biogas liquid is controlled. The present invention can realize the biogas liquid reducing treatment, increase the nutrient content in the biogas liquid, and ensure that the ammonia nitrogen content is in a reasonable utilization range; and meanwhile the present invention is relied on low grade energy, and can therefore reduce costs.

The invention provides an electro-catalysis efficient decoloration method and device for oil field waste liquid. The method comprises the following steps: carrying out acidification aeration treatmenton the oil field waste liquid; carrying out electro-catalysis oxidation treatment on the oil field waste liquid after the acidification aeration treatment; and after the electro-catalysis oxidation treatment, carrying out delayed standing stirring settling, so as to finish the efficient decoloration of the oil field waste liquid. By utilizing an acidification aeration preoxidation-electrocatalytic oxidation-delayed reaction settling combined process, the addition of a chemical agent in the treatment process of operation waste liquid is effectively reduced, the sludge output is decreased to bebelow 20% of that of a conventional chemical mixed flocculation process, the chroma removing rate is stabilized over 85%, and the comprehensive treatment cost is lowered by over 20%.

The invention relates to the field of industrial smoke dust filtering devices, in particular to an industrial smoke dust particulate matter filtering device, which comprises a pool body, a filtering structure, a stirring structure, a circulating structure, an anti-blocking structure, a connecting structure and a fixing structure. The filtering structure is mounted at one end of the tank body and smoke can be accelerated to enter the tank body to react with filtrate under the action of wind power, so that the reaction is sufficient, the stirring structure can be synchronously driven to work while the filtering structure performs filtering work, and through work of the stirring structure, the filtering effect is improved. According to the smoke filtering device, the filter liquid in the tankbody can be stirred to prevent the filter liquid from precipitating, the effect of cutting off smoke bubbles can be achieved, the smoke filtering effect can be improved, the circulating structure isinstalled at the bottom end of the tank body, the effect of precipitating and cleaning the filter liquid can be achieved and waste is reduced; in addition, when the circulating structure works, the anti-blocking structure can be synchronously driven to work.

The invention relates to a deep well structure and a use method thereof. The deep well structure comprises a well pipe, a suction pipe of which one end is arranged in the well pipe, a submersible pump which is arranged in the well pipe and connected with the suction pipe and an electrical power cable connected with the submersible pump. The deep well structure is characterized by further comprising a connecting flange and a fixing flange, the connecting flange is fixed on the edge of the outer side of a well mouth of the well pipe, the fixing flange is fixedly connected with the connecting flange through fixing bolts and seals the well mouth, the suction pipe and the electrical power cable penetrate through the fixing flange and are in seal connection with the fixing flange, and a control valve is arranged on the portion, on the outer side of the well pipe, of the suction pipe in series. According to the structure, the submersible pump is matched with the suction pipe to pump well water out of the well pipe, after the well water is completely pumped out, the control valve on the suction pipe is switched off, and a vacuum and negative-pressure closed space is formed due to water suction in the well pipe; meanwhile, water in a surrounding environment flows into the well pipe through suction formed by the vacuum and negative-pressure closed space in the well pipe, and the water volume in the well pipe is replenished.

The invention discloses a halal mushroom beef sauce and a preparation method thereof, belonging to the technical field of food seasonings. The halal shiitake mushroom beef sauce includes the following raw materials in parts by weight: 30-300 vegetable oil, 10-100 diced beef, 2-20 dried red pepper, 2-10 chili sauce, 20-60 shiitake mushroom, 2-50 garlic, Onion 1-10, ginger 1-20, edible salt 2-15, mixed soy sauce 0.3-3, white sugar 1-5, pepper 0.8-2, spices 0.1-5. The beef is specially marinated, quick-frozen, and then fried with oil to remove the mutton and increase the aroma, rich in nutrition, and crispy in taste. The invention has fine material selection, rigorous and scientific formula, taking into account the requirements of nutrition, taste, color and other aspects, and the process is scientific and reasonable. The aromas of beef, mushrooms, chili sauce, and spices are harmonious, and the taste is crisp and chewy.

The invention provides a high-efficiency electrocatalytic decolorization method and device for oilfield waste liquid. The method for electrocatalytic and efficient decolorization of oilfield waste liquid includes: acidifying and aerating the oilfield waste liquid; performing electrocatalytic oxidation treatment on the oilfield waste liquid after the acidizing and aerating treatment; Complete the efficient decolorization of oilfield waste liquid. The invention utilizes the combination process of acidification aeration pre-oxidation-electrocatalytic oxidation-delayed reaction and sedimentation to effectively reduce the dosage of chemical agents in the process of processing waste liquid, and the amount of sludge generated is reduced to less than 20% of the conventional chemical coagulation and flocculation process. The color removal rate is stable above 85%, and the comprehensive treatment cost is reduced by more than 20%.

The invention provides an organic matter-containing wastewater treatment method and device. The treatment device comprises a wastewater pre-heater, an evaporator, a scaling device, a first-effect steam compressor, a second-effect steam compressor and a condensation water collector. The invention also provides the organic matter-containing wastewater treatment method adopting the device. The wastewater treatment method and device provided by the invention have the advantages of safety, reliability, simple equipment, low operating cost, obvious energy saving effect and the like.

The invention provides a method for preparing fermentable sugar and lignosulfonate from furfural residues. The method comprises the following steps of 1, ethanol and sulfite-based pretreatment comprising that furfural residues reacts with sulfite in an ethanol solution and reaction products are subjected to solid-liquid separation, 2, countercurrent washing comprising that the solids obtained by the step 1 are subjected to multistage countercurrent washing by an ethanol washing liquid, 3, enzyme hydrolysis comprising that the solids subjected to the multistage countercurrent washing are subjected to cellulase hydrolysis, and 4, ethanol recovery comprising that the liquid obtained by the solid-liquid separation in the step 1 is mixed with the washing liquid recovered after the countercurrent washing in the step 2 and the mixed solution is subjected to pressure reduction condensation to form ethanol and lignosulfonate. The method utilizes combination of an organic solvent method and a sulfite method. Through the sulfite method, furfural residues are pretreated so that furfural residue sample hydrophily is improved and lignin removal and hydrolysis rate increasing are realized. Through the organic solvent method, the raw materials are pre-treated so that pretreatment liquid recovery and recycle are realized and a production cost is reduced.

The invention discloses a kind of based on 5A and Fe 3 O 4 The method for catalytic pyrolysis of waste circuit boards with composite additives includes the following steps: S1. Crushing the waste circuit boards, extracting non-metallic powders into a pyrolysis furnace, and adding composite additives; S2. Heating the above materials to 500-600° C. , keep for 1.5-2.5 hours until complete pyrolysis, and collect pyrolysis oil; the composite additive is composed of the following components by weight: molecular sieve 5A 25-80 parts, Fe 3 O 4 75 to 20 servings. The invention can simultaneously realize dehalogenation and lightening of the waste circuit board pyrolysis oil, can be widely used in the treatment, disposal or resource utilization of the waste circuit board, and has a good application prospect.

The invention relates to the technical field of automobile parts, and discloses a cleaning device for an automobile part foot pad. The device comprises four vertically-arranged supporting rods, wherein a horizontally-arranged supporting plate is fixedly connected among the top ends of the four supporting rods, the two sides of the top end of the supporting plate are fixedly connected with a first vertical plate and a second vertical plate correspondingly, a horizontally-arranged transverse plate is fixedly connected between the top ends of the first vertical plate and the second vertical plate, a first one-way threaded rod is rotationally installed between the first vertical plate and the second vertical plate, a moving block is installed on the outer side of the first one-way threaded rod in a threaded mode, and the top end of the moving block is slidably connected with the bottom end of the transverse plate. The cleaning device is reasonable in structure, convenient to use and capable of rapidly and automatically cleaning the foot pad, the foot pad can be rapidly cleaned through soaking and kneading, the cleaned foot pad can be put into a storage box, and two clamping plates get close to each other, so that the effect of squeezing away water on the foot pad can be achieved, and the foot pad is easier to air.

The invention discloses a flat tail rope dismantling machine, which comprises a chassis. A cutting structure is arranged in the middle of the chassis. The cutting structure includes a driving part and a cutter part. The driving part includes a driving bracket. A cam is arranged in the center, and a drive motor is connected to one side of the rotating shaft. The cutter part comprises a spring rod seat and a cutter seat, a spring rod is arranged on the spring rod seat, and a spring is connected to the top of the spring rod. The tilting hinge on the cutter seat is connected with a cutter, and the front end of the cutter is connected with the lower end of the spring. The rotation of the cam can intermittently press the top of the cutter to move the cutter down. The invention cuts off the braided wire of the flat tail rope from the middle through the cutting structure, and then separates the main core wire from the braided wire by using the rope dividing structure through the pulling of the rope receiving drum. The dismantling machine can efficiently disassemble the flat tail rope, consumes less manpower, and the dismantled main core wire can be reused, thereby achieving the purpose of repairing old and waste, and saving costs.

The invention provides an organic matter-containing wastewater treatment method and device. The treatment device comprises a wastewater pre-heater, an evaporator, a scaling device, a first-effect steam compressor, a second-effect steam compressor and a condensation water collector. The invention also provides the organic matter-containing wastewater treatment method adopting the device. The wastewater treatment method and device provided by the invention have the advantages of safety, reliability, simple equipment, low operating cost, obvious energy saving effect and the like.

The invention discloses a flue gas desulfurizing and denitrifying technology in a thermal power plant. The flue gas desulfurizing and denitrifying technology comprises the following steps: (1), cooling raw flue gas, and inflating the flue gas into activated carbon at normal temperature for first-stage filtration treatment to obtain first-stage filtered flue gas; (2), continuing inflating the obtained first-stage filtered flue gas into a steel slag composite system to obtain second-stage filtered flue gas; (3), continuing inflating the obtained second-stage filtered flue gas into tetramethyl guanidine lactate-modified starch to obtain third-stage filtered flue gas. By the flue gas desulfurizing and denitrifying technology, the efficiency of removing nitric oxide and sulfur dioxide from theflue gas is high; when the flue gas desulfurizing and denitrifying technology is used for treating the flue gas, the high removing efficiency can be maintained for a long time.

The invention provides a system and a method coupling activated carbon pyrolysis gas preparation and biomass direct combustion denitration. The system comprises: a carbonization furnace for performinga carbonization reaction on a raw material and generating initial pyrolysis gas; a secondary combustion chamber used for receiving the initial pyrolysis gas generated by the carbonization furnace through a first pipeline for combustion, one part of the combusted pyrolysis gas being introduced into the carbonization furnace through a second pipeline for heat exchange, and the other part of the combusted pyrolysis gas being introduced into a biomass incinerator; and the biomass incinerator used for receiving the combusted pyrolysis gas generated by the secondary combustion chamber and the pyrolysis gas subjected to heat exchange in the carbonization furnace so as to carry out a denitration reaction. According to the system and the method, the pyrolysis gas generated in an activated carbon preparation carbonization process is introduced into the biomass incinerator, and reacts with nitrogen oxides generated by biomass incineration, so that the purpose of removing nitrogen oxides is achieved, and meanwhile, the pyrolysis gas prepared from the activated carbon can be efficiently and cleanly utilized.

The invention discloses an Al 2 o 3 and Fe 3 o 4 The method for composite catalytic pyrolysis of waste metal powder of waste circuit boards comprises the following steps: S1. Breaking waste circuit boards, extracting non-metallic powders, putting the non-metallic powders into the first temperature zone of a two-stage heating pyrolysis furnace, and simultaneously Put the composite catalyst into the second temperature zone of the two-stage heating pyrolysis furnace. S2. The first temperature zone and the second temperature zone are heated at the same time. For 2 hours, the heating condition in the second temperature zone is to heat to 500-600°C, keep it for 2-3 hours, and collect the pyrolysis oil after complete pyrolysis; the composite catalyst is composed of the following components by weight: Al 2 o 3 40-60 parts, Fe 3 o 4 60-40 servings. The invention effectively improves the economic added value of the waste circuit board pyrolysis oil by dehalogenating and lightening the waste circuit board pyrolysis oil.