20results about How to "High operating costs" patented technology

The invention discloses a screening device, system and method for separating polyolefin powder and block materials, and the screening device comprises a screening mechanism which is arranged in a waste material box and connected to the lower portion of a discharging pipe; the powder collecting device is connected to the lower portion of the screening mechanism and used for receiving the powder screened out through the screening mechanism; the lump material collecting device is connected with the screening mechanism through a material conveying piece and is used for receiving the lump materials which are not screened by the screening mechanism; the screening mechanism does not need to be driven by external power, and separation of powder materials and block materials is achieved by means of the self weight of the materials. According to the scheme, the screening mechanism which does not need to be driven by external power and works only depending on the dead weight of the materials is adopted, the beneficial effect that extra electric energy or mechanical power is not consumed in the whole separation process is achieved, and the situation that energy consumption and operation cost are increased due to powder recycling is fundamentally avoided.

The invention relates to a soil microorganism high-efficiency water purification filter material and a preparation process thereof, and aims to solve the problems of low removal efficiency, high cost, easiness in secondary pollution, insufficient affinity with soil microorganisms and the like of the existing microorganism filter material. The filter material is prepared by taking volcanic rock, activated carbon, bentonite and modified cellulose as main raw materials, combining the main raw materials according to a specific ratio, preparing porous particles by virtue of processes such as calcining, activating, mixing, granulating and sintering, and finally loading the porous particles by virtue of a microbial bacterial liquid. The product has a large specific surface area, good adsorption performance and high chemical stability, and can provide an excellent adhesion and growth environment for soil microorganisms. Experiments prove that the filter material can significantly improve the removal efficiency of pollutants such as COD, ammonia nitrogen and total phosphorus in sewage, and the filter material has the advantages of easily available raw materials, low cost and environmental friendliness, and is suitable for the fields of sewage treatment, ecological restoration and the like.

This invention provides a low-cost and environmentally friendly papermaking pulping process, comprising the following steps: S1. Pretreatment of papermaking fiber plant raw materials. S2. Oxy-alkali cooking: The pretreated papermaking fiber plant raw materials are mixed with an aqueous sodium carbonate solution, and cooked for 0.5–5 hours using oxygen as an oxidant. Then, sodium hydroxide is added, and cooking continues for 0.3–2 hours. Finally, the pulp and black liquor are separated by pressing. S3. Black liquor treatment: The black liquor is mixed with fiber waste, pressed, and burned as biomass fuel. S4. Recovery and causticization. This papermaking pulping process uses sodium carbonate and a small amount of sodium hydroxide for staged oxy-alkali pulping, and the generated black liquor is mixed with fiber waste and burned to recover sodium carbonate and heat, reducing the causticization rate and pulping costs.

The application discloses a preparation method of butyl acrylate. The butyl acrylate is prepared through esterification reaction of raw materials of acrylic acid and n-butanol. The acrylic acid includes acryloyloxypropionic acid, maleic acid and crotonic acid. The mass ratio of the acryloyloxypropionic acid to the maleic acid is 1:0.01-1, and the mass ratio of the crotonic acid to the acryloyloxypropionic acid is 1:5-500. The content of key impurities in the acrylic acid is ensured to be in a specific ratio, and the crude acrylic acid is directly used as a raw material for butyl acrylate production after removal of light components, so that the production cost of the butyl acrylate is greatly reduced, and raw material consumption and energy consumption are reduced. The application is a green and efficient production process.

This invention relates to the field of water treatment technology, specifically to a device for enhancing biological water quality improvement using a pumped aeration coupled with an inorganic electron donor. The device includes an anchoring unit, a pumped aeration unit, a guide tube, and a bioreactor unit. The pumped aeration unit intermittently releases high-pressure gas to generate an upward gas-liquid mixture. A preset distance between the bioreactor and the guide tube provides hydraulic buffering, precisely controlling the flow velocity to ensure complete fluidization of the biological packing material without impact damage. The bioreactor is connected to a first steel chain via a flexible connector, further mitigating vibrations from water flow fluctuations and airflow impacts. This solves the problem of existing biological packing materials being broken by high-speed airflow impacts over long periods. Simultaneously, the coaxial reference design avoids water flow deviation, ensuring uniform delivery of dissolved oxygen, pollutants, and indigenous microorganisms. This allows the oxygenation and mixing functions of the pumped aeration unit and the vertical circulation function of the bioreactor to work synergistically, achieving continuous in-situ improvement of reservoir water quality.

The invention provides an ammonia-free ultralow-temperature denitration catalyst and a preparation method thereof.The preparation method comprises the following steps that S1, manganese nitrate, cerium nitrate and niobium oxalate are mixed according to the mass ratio of 80-90: 5-10: 5-10 to obtain mixed powder, absolute ethyl alcohol is added into the mixed powder to be mixed and subjected to ball milling to obtain activated powder, the activated powder, water and citric acid are placed in a reaction kettle to be subjected to a hydrothermal reaction, and a precursor is obtained; after the reaction, performing suction filtration to obtain an active substance; s2, mixing an active substance, nano titanium sol, nano silicon sol and tween-20 according to a mass ratio of (20-40): (45-65): (5-15): (3-7) to obtain a coating material; and coating a pretreated cordierite carrier with the coating material, drying, and roasting to obtain the ammonia-free ultralow-temperature denitration catalyst. The mixed powder is subjected to ball milling activation and then subjected to hydrothermal reaction to form the nano needle-shaped oxide, so that the denitration activity of the catalyst in an ammonia-free low-temperature environment can be greatly improved.

The application discloses a calcium carbide furnace tail gas deep purification process. The calcium carbide furnace tail gas is firstly subjected to wet desulfurization and dehydrocyanation and TSA treatment, and then sequentially enters a de-fluorine and de-hydrocyanation reactor, a hydrolysis desulfurization reactor, a fine desulfurization reactor, a de-phosphorus and de-arsenic reactor, a de-oxygen reactor and a de-hydrocarbon reactor. After the treatment process, the HCl content in the gas is less than 0.1 ppm, the HF content is less than 0.1 ppm, the HCN content is less than 0.1 ppm, the total sulfur content is less than 0.1 ppm, the AsH3 content is less than 5 ppb, the PH3 content is less than 5 ppb, the oxygen content is less than 10 ppm, and the unsaturated hydrocarbon content is less than 0.1 ppm, thereby meeting the separation and purification requirements of subsequent processes, and the pressure drop of the whole process is not more than 100 kPa. The process can remove oxygen and unsaturated hydrocarbons in the gas under low-temperature conditions, thereby reducing the occurrence of side reactions, and has the characteristics of reasonable process design, high purification precision, low energy consumption and low operation cost.

The invention relates to a double heat accumulating type heating furnace and method for ammonia hydrogen-doped combustion, and belongs to the technical field of heat accumulating type heating furnaces. The double heat accumulating type heating furnace comprises a heat accumulating type combustor system, and a fuel channel / flue gas channel and an air channel / flue gas channel are symmetrically arranged on the two sides of a furnace body of the heating furnace; a first heat storage chamber filled with a fuel channel heat storage body is arranged in the fuel channel / flue gas channel, and a second heat storage chamber filled with an air channel heat storage body is arranged in the air channel / flue gas channel; the gas supply system is connected with the fuel channel / flue gas channel and the air channel / flue gas channel through a reversing system, and ammonia fuel and combustion-supporting air are alternately introduced into the gas supply system; the smoke exhaust system is connected with the fuel channel / smoke channel and the air channel / smoke channel through a reversing system and alternately exhausts smoke; and an ammonia decomposition catalyst layer is loaded in the first heat storage chamber. According to the invention, flue gas waste heat is utilized to drive ammonia gas to crack to produce hydrogen, stable combustion and low-nitrogen emission of ammonia-hydrogen mixed fuel are realized, and thus energy conservation and emission reduction of an industrial furnace are realized.

The application discloses a kind of optimization configuration methods of carbon neutralization energy system considering climate change, first obtain the weather data of initial year to target year and cold, heat and electric load demand, considering the influence of climate change on energy system load and considering the efficiency change of electric energy generation unit, thermal power generation, photovoltaic, solar collector, wind power generation, electric refrigerator and absorption refrigerator under climate change, finally a kind of carbon neutralization energy system considering climate change is presented.The application can realize the "carbon neutralization" goal of energy system, can evaluate the cost required to improve for an energy system to complete carbon neutralization under climate change, the application finds: in order to complete the carbon neutralization goal before 2060, carbon neutralization energy system needs to improve 2% cost, carbon neutralization every 10 years realizes, system needs to improve 1% operating cost more, but at the same time, 9.1% carbon dioxide emissions will be reduced.

This utility model discloses a downhole anti-pollution well-washing device for load reduction, including a tubing string creep expansion compensator, a multi-functional screen pipe, a self-draining seal, and a leak-proof check valve. The leak-proof check valve has the self-draining seal, multi-functional screen pipe, and tubing string creep expansion compensator sequentially arranged on its top. This downhole anti-pollution well-washing device, through the lifting and lowering action, causes the clutch clamp and tubing pin on the tubing string creep expansion compensator, and the seal pin, seal, cone, locking teeth, straightening block, and straightening body on the self-draining seal to work together to complete the sealing. Simultaneously, the load required for sealing is low, preventing tubing string jamming. Furthermore, it has self-pressure relief and load reduction functions, improving operational efficiency and saving operating costs. This device and method only requires lifting the tubing string to directly release the annular liquid load above the self-draining seal, eliminating the need for other methods and saving operating costs.

The invention belongs to the field of flue gas purification, and particularly discloses an activated carbon flue gas purification system and process based on cooperative operation of double desorption towers. The system comprises an adsorption unit, an analysis unit and an activated carbon conveyor. The adsorption unit comprises a gas inlet channel, an adsorption device, a gas outlet channel and a chimney, and smoke enters the adsorption device through the gas inlet channel to be purified, then enters the chimney through the gas outlet channel and is exhausted. And the adsorption device at least comprises an adsorption tower. And the analysis unit comprises a first analysis tower and a second analysis tower. The activated carbon conveyor can drive activated carbon saturated in the adsorption tower to enter the first desorption tower and the second desorption tower respectively for desorption and regeneration, and the regenerated activated carbon is conveyed back to the adsorption tower again, so that continuous purification of flue gas and efficient regeneration of the activated carbon are guaranteed. Through the cooperative layout of the adsorption units and the double desorption towers, the conveying efficiency of activated carbon can be improved, the flue gas purification efficiency is further improved, and the occupied area of equipment can be remarkably reduced.

The utility model discloses a low temperature adsorption device for hydrogen liquefaction, and the device comprises a raw material hydrogen compression and purification unit X100, a low temperature heat exchanger E100, a gas reheater E200, a low temperature adsorber A100A, a low temperature adsorber A100B, an 80K cold box X200 and a plurality of control valves which are connected with each other. The scheme can continuously and efficiently produce purified hydrogen, and has the advantages of simple process operation, safety and reliability, no nitrogen consumption, no moving equipment and low energy consumption.

The invention relates to a nitrogen oxide cooperative control system for a deep peak regulation working condition of a coal-fired power plant boiler, and the system comprises a connection module which is used for connecting the two ends of a bypass pipeline of a recirculation bypass subsystem to an outlet of an air feeder and an inlet of the air feeder respectively; the adjusting module is used for controlling a bypass adjusting baffle arranged on a bypass pipeline to be opened when it is detected that the coal-fired power plant boiler is in the deep peak regulation working condition so as to adjust the air volume flowing through the bypass pipeline; the cooperative control module is used for guiding air back to an inlet of the air feeder from an outlet of the air feeder through a bypass pipeline and cooperatively controlling a secondary air combination mode of the combustor, the opening degree and the swing angle of the separated type over-fire air and a running combination mode of the coal mill, so that the coal mill runs under the preset air volume condition; and controlling the nitrogen oxide concentration in an interval range meeting a preset optimal condition. According to the embodiment of the invention, stable and ultralow emission of NOx can be realized within a wide load range, especially under a deep peak regulation working condition.

The utility model relates to a kind of storage tank and its automatic spading device.The automatic spading device includes: push plate assembly, it includes fixed part and push plate, at least two push plates are spaced apart along the length direction of the fixed part;Drive assembly, it includes guide rail, sliding member and driving part, sliding member is slidably connected with the guide rail, and is connected with the fixed part;The driving part is drivingly connected with the sliding member, to drive the sliding member moves along the guide rail.The utility model moves by cylinder drive push plate assembly, replaces artificial spading, improves loading efficiency and reduces manpower cost and labor intensity;At the same time, by setting multiple push plates, it is realized to increase the pushing area of push plate assembly when slider moves the same distance, to increase the single pushing capacity and pushing distance of push plate assembly, to further facilitate shorten loading time and improve tank fullness coefficient.In addition, automated operation reduces artificial contact, reduces biological safety risk, reduces additional disinfection demand brought by artificial operation, reduces operating cost.

The utility model relates to waste heat power generation water treatment technical field, and disclose a kind of waste heat power generation circulating cooling water treatment system, electric pulse scale inhibition system is equipped with two groups and is respectively installed on processing pipe A and processing pipe B, adopts the technology that electromagnetic pulse and ultrasonic wave are combined, the attachment of scale formation in pipeline is prevented by generating electromagnetic pulse and ultrasonic wave vibration;Filtering mechanism is equipped with two groups and is respectively installed in the back of each electric pulse scale inhibition system and is used to filter and remove scale impurities in water body;Ultraviolet sterilization tank is equipped with two groups, one group of ultraviolet sterilization tank is installed between the filtering mechanism of front side and processing pipe B, another group of ultraviolet sterilization tank is installed in the back of the filtering mechanism of back side. Adopt pure physical processing mode, by electric pulse scale inhibition, filtration and ultraviolet sterilization multistage processing, without chemical reagent, can efficiently scale inhibition sterilization, reduce equipment corrosion, reduce pollution discharge, and degree of automation is high, maintenance cost is low, avoid secondary pollution.

The utility model discloses energy-saving waste gas dust-removing environment-friendly equipment, and relates to the technical field of dust-removing environment-friendly equipment, the energy-saving waste gas dust-removing environment-friendly equipment comprises a dust-removing box body, the upper end of the dust-removing box body is provided with a dust-removing device, and one side of the dust-removing box body is connected with an adsorption device; the other side of the adsorption device is connected with the discharge device; according to the utility model, the activated carbon filter plates in the adsorption device are arranged in a rectangular array manner, so that the contact area and the contact time of waste gas and the activated carbon filter plates are increased, residual harmful gas and fine particles in the waste gas can be fully adsorbed, deep purification of the waste gas is realized, and the waste gas emission reaches a higher environmental protection standard; a plurality of top maintenance doors are arranged on the filter box, so that workers can conveniently check, replace and maintain the activated carbon filter plate, and the normal operation of the equipment is ensured.

The invention relates to the technical field of titanium dioxide waste acid recycling, and particularly discloses a titanium dioxide calcination tail gas waste heat utilization and titanium dioxide waste acid regeneration technology. Comprising the following steps: 1, removing dust from calcination tail gas through a dust remover; 2, the tail gas obtained after dust removal is introduced into a waste heat boiler to generate low-pressure steam, and the temperature of the tail gas at an outlet of the waste heat boiler is controlled to range from 200 DEG C to 250 DEG C; step 3, enabling the exhaust gas at the outlet of the waste heat boiler to be in direct contact with waste sulfuric acid to obtain pre-concentrated dilute sulfuric acid and cooled exhaust gas; 4, the cooled tail gas is sequentially subjected to hydrogen peroxide washing and water washing; 5, filtering, purifying and concentrating the pre-concentrated dilute sulfuric acid in sequence to obtain regenerated acid, wherein a concentrated heat source comes from low-pressure steam generated by a waste heat boiler. The technical problems that in the prior art, the steam consumption is large, the operation cost is high, and the waste heat of tail gas is not fully utilized when the waste dilute sulfuric acid and the calcination tail gas in the titanium dioxide production process with the sulfuric acid method are treated are solved.

The utility model provides a kind of waste gas treatment device in water-based paint production process, it is related to waste gas treatment device technical field in water-based paint production process, the utility model includes spray tower, fixedly connected with air inlet pipe on the spray tower, fixedly connected with water inlet pipe on the spray tower, fixedly connected with gas pipe on the spray tower, one end of the gas pipe is fixedly connected with filter box, fixedly connected with exhaust pipe on the filter box, filter plate is provided on the filter box, fixedly connected with collection box on the spray tower, the filter box is connected with collection box by connecting pipe and is communicated, the utility model solves the problem that waste gas into activated carbon adsorption device has higher humidity, high humidity environment can make activated carbon damp, not only significantly reduce its adsorption capacity to VOCs, also possibly cause activated carbon caking, microorganism breeding, shorten replacement cycle, increase operating cost, even because of adsorption efficiency drop leads to waste gas emission exceeds standard.

The present disclosure provides a power calibration method, comprising: a terminal receiving at least one group of power calibration reference signals from a base station, each group of power calibration reference signals corresponding to an uplink; the terminal determines a downlink frequency point power calibration value corresponding to each group of power calibration reference signals by measuring each group of power calibration reference signals, and determines an uplink frequency point power calibration value corresponding to each group of power calibration reference signals according to the downlink frequency point power calibration value corresponding to each group of power calibration reference signals; and the terminal sends an uplink signal on an uplink corresponding to each group of power calibration reference signals based on the uplink frequency point power calibration value corresponding to each group of power calibration reference signals so as to calibrate the uplink frequency point power. The disclosure also provides an electronic device and a computer program product.

The present application relates to a kind of energy, resource recycling-oriented sewage treatment system and process operation method, belong to sewage treatment field.The sewage treatment system includes chemical strengthening pretreatment unit, enhanced nitrification unit, oxygen-consuming unit and sulfur autotrophic denitrification unit, strengthening pretreatment unit includes the mechanical mixing pool and strengthening primary sedimentation tank connected in sequence, and primary sludge enters sludge treatment unit and carries out phosphorus recovery and anaerobic digestion and heat power cogeneration capacity;Enhanced nitrification unit is moving bed membrane bioreactor;Oxygen-consuming unit is oxygen-consuming tank, and the sludge discharge port in the bottom of oxygen-consuming tank is connected with sludge treatment unit and sludge reflux pump;Sulfur autotrophic denitrification unit includes sulfur autotrophic vibrating membrane bioreactor.The sewage treatment system and process operation method of the present application are simple, easy to operate, and easy to realize unattended;It can be in energy, resource efficient recycling, ensure that effluent quality meets the standard while, realize short process low carbon operation.