649 results about "Zero emission" patented technology

The invention discloses a cyclic utilization and purification treatment system for slurry in pile foundation engineering construction. According to the invention, the purification treatment system is utilized to realize the double breakthrough of environmental friendliness and high resource efficiency in the construction process through the deep enabling of the intelligent regulation and control module. The system constructs a closed-loop management chain of the slurry life cycle by relying on full-process data perception and dynamic optimization capability. The intelligent regulation and control module captures fine changes of physical and chemical characteristics of the slurry in real time and automatically regulates the operation mode of the treatment equipment, so that the purified slurry always keeps the optimal engineering performance index, and the risk of pile body defects caused by quality fluctuation of the slurry is greatly reduced. By means of the intelligent design of the waste slurry recycling path, pollution sources in traditional construction are converted into reusable engineering materials, damage to the ecological environment caused by outward transportation and landfill of waste is remarkably reduced, and an engineering site is promoted to move towards the near-zero emission target.

A lump ore drying and circular cooler coupled near-zero emission method comprises the steps that (1) sinter to be cooled sequentially passes through a high-temperature area, a medium-temperature area and a low-temperature area of a circular cooler to be cooled, and the cooled sinter is discharged from a discharging port of the circular cooler; (2) the lump ore to be dried enters a drying machine to be dried, and the dried lump ore is discharged from a discharging opening of the drying machine; (3) the cooling air enters a high-temperature area of the circular cooler and exchanges heat with the sintered ore in the high-temperature area, and after heat exchange, high-temperature hot air discharged from the high-temperature area is pumped back to the high-temperature area to circularly cool the sintered ore after waste heat utilization; and (4) cooling air entering the medium-low temperature area of the circular cooler continues to cool the sintered ore, mixed hot air discharged from the medium-low temperature area is conveyed to the drying machine to dry lump ore after heat exchange with the sintered ore, and dry air discharged from the drying machine is condensed and then pumped back to the medium-low temperature area to circularly cool the sintered ore. According to the system, lump ore drying and the circular cooler are coupled, and full utilization and near-zero emission of waste gas waste heat of the circular cooler are achieved.

The invention relates to the technical field of flue gas recirculation, in particular to a bell-type annealing furnace oxygen-rich combustion flue gas recycling system and method, and the system comprises a circulating flue gas heating cylinder, an oxygen-rich combustor and a system control valve group; oxygen of the oxygen-rich combustor is mixed with fuel, after the fuel enters the circulating flue gas heating cylinder, the oxygen is mixed with part of the fuel to form root flame, and the unburned fuel and oxygen are completely combusted in the circulating flue gas heating cylinder to form flameless flame; the number of the circulating flue gas heating cylinders is one or more, each circulating flue gas heating cylinder is provided with an oxygen-rich combustor, heat generated by combustion is used for heating flue gas generated by combustion of oxygen and fuel in the circulating flue gas heating cylinders, the heated flue gas is circulated to the bell-type furnace through the high-temperature and high-pressure circulating flue gas fan, and redundant flue gas is recycled in a centralized mode. According to the system, heat is fully utilized through flue gas circulation, heating uniformity and quality are improved, combustion flue gas is high-purity carbon dioxide, and zero emission of the flue gas can be achieved through trapping and recycling.

The invention discloses a low-energy-consumption skid-mounted triethylene glycol dehydration tail gas zero-emission treatment device which comprises a tail gas cooling unit, a gas-liquid separation unit and a tail gas recycling unit which are connected in sequence, the gas-liquid separation unit comprises a gas-liquid separation tank, the gas-liquid separation tank is provided with a gas output pipe, and the gas output pipe is connected with the tail gas cooling unit. The tail gas recycling unit is provided with a tail gas input pipeline, the gas output pipe is communicated with the tail gas input pipeline, the tail gas input pipeline is further communicated with the power natural gas output pipeline, and an ejector is installed at the joint of the power natural gas output pipeline and the tail gas input pipeline. Tail gas and natural gas are conveyed to the rear end of the natural gas of the main pipeline. The system has the beneficial effects that regenerated tail gas after gas-liquid separation is mixed with power natural gas with pressure under the action of the ejector, and the tail gas is conveyed to the rear end of the natural gas of the main pipeline, so that the tail gas is recycled, the economic benefit is improved, zero emission of the tail gas is realized, and the environment is prevented from being polluted.

The invention provides an HCFC-22 production method with net zero emission of by-product HFC-23, a production process system integrates a conversion and utilization process system of the by-product HFC-23 in the HCFC-22 production process, the HCFC-22 production process is coupled with a conversion process of HFC-23 and CHCl3, the by-product HFC-23 generated in the HCFC-22 production process is directly converted into HCFC-22 and HCFC-21 in the system, and the HCFC-22 and CHCl3 are converted into HCFC-22 and CHCl3. Through further separation and purification and raw material index control, the HFC-23 conversion catalyst keeps good activity, selectivity and stability, HFC-23 generated in the HCFC-22 production process can be effectively converted, and zero emission of HFC-23 in a system is achieved. The method is simple in process, low in investment cost, low-carbon, environment-friendly, efficient in emission reduction and capable of realizing net zero emission of the byproduct HFC-23 of the HCFC-22 production system.

The utility model discloses a circulating water ternary purification treatment system which comprises a pretreatment technology unit, a multi-effect purification side filtration equipment unit, a high-efficiency electronic scale removal and prevention equipment unit, a heat exchanger self-cleaning technology unit, an electronic sterilization and algae removal technology unit, a constant-pressure water replenishing exhauster, a tubular heat exchanger and a control unit, the control unit is electrically connected with the multi-effect purification side filtration equipment unit, the efficient electronic scale removal and prevention equipment unit and the heat exchanger self-cleaning technology unit; the circulating cooling water is treated by a pure physical method, so that the effects of scale removal, scale prevention, sterilization, algae removal, filtration and purification are achieved, heat exchange equipment of the system continuously keeps high-efficiency operation of design performance, and the purposes of water saving, energy saving, environmental protection and zero emission are achieved.

The utility model relates to an energy-saving device for recovering high-purity ammonia from wastewater, and belongs to wastewater treatment in the field of environmental protection. Comprising a deamination tower, a preheater, a wastewater cooler, a heat compensation heat exchanger, a compressor and a throttle valve, the deamination tower comprises a heating section, a deamination section, a condensation section, an ammonia washing section and a purification section; the ammonia washing section is provided with a pure water inlet and an ammonia water outlet, and the purification section is provided with a dilute acid aqueous solution inlet and a salt solution outlet. Low-grade waste heat is converted into a high-grade heat source through the compressor, fresh steam is replaced, and the purpose of saving energy is achieved. The problem that tail gas emission needs retreatment in the prior art is solved, zero emission of tail gas is achieved, and meanwhile co-production of ammonia water and ammonium salt is achieved.

The invention discloses a gas pressurization injection system and method. A four-stage piston compressor of the gas pressurization injection system comprises a first-stage gas inlet steam-water separator, a first-stage gas inlet buffer tank, a first-stage piston compression air cylinder, a first-stage gas exhaust buffer tank, a first-stage air cooler, a second-stage gas inlet steam-water separator, a second-stage gas inlet buffer tank, a second-stage piston compression air cylinder, a second-stage gas exhaust buffer tank and a second-stage air cooler which are communicated in sequence. The system comprises a three-stage air inlet steam-water separator, a three-stage air inlet buffer tank, a three-stage piston compression air cylinder, a three-stage exhaust buffer tank, a three-stage air cooler, a four-stage air inlet steam-water separator, a four-stage air inlet buffer tank, a four-stage piston compression air cylinder, a four-stage exhaust buffer tank and a four-stage air cooler. According to the invention, gaseous carbon dioxide can be prevented from being condensed into liquid through the gas pressurization injection system and the independently researched and developed four-stage piston compressor, so that zero loss of carbon dioxide gas in mixed gas is ensured, 100% recycling of carbon dioxide is realized, zero emission of carbon dioxide in the external environment is realized, and the energy consumption is reduced. The problems that in the prior art, wellhead gas is directly exhausted into air, so that environment pollution is caused, and energy waste is avoided are solved.

The invention discloses a range-extended hybrid motorboat system and a control method, and relates to the technical field of new energy engineering, and the system comprises a man-machine interaction unit which is used for receiving an operation instruction and displaying a system state; the system control unit is used for receiving a user instruction and feedback information and issuing a control instruction to the corresponding unit; the high-low voltage unit is used for storing, converting and distributing the electric energy; and the power integration unit is used for providing a fuel power source for the range extending mode and comprises an engine, an engine controller, an electric control ISG motor, an electric control driving motor, a cooling device, a fuel tank and a liquid level sensor. The range-extended hybrid power mode of fuel power generation and motor driving is adopted, the battery is continuously charged or the electric control driving motor is directly supplied with power when the electric quantity is insufficient, energy can be quickly supplemented through refueling, the problems that a pure electric motorboat is short in endurance and inconvenient to charge are effectively solved, and the service life of the pure electric motorboat is prolonged. The advantages of low noise and zero emission of pure electric drive and long endurance of fuel power are achieved.

The invention discloses a gas-liquid reaction system. The gas-liquid reaction system comprises a wastewater pool, an ozone generator, an oxidation reaction tank and a first micro-interface generator located in the oxidation reaction tank. An inlet of the first micro-interface generator is communicated with the wastewater pool and the ozone generator, and an outlet of the first micro-interface generator is communicated with the inside of the oxidation reaction tank. Therefore, wastewater in the wastewater pool and ozone produced by the ozone generator can be simultaneously conveyed to the first micro-interface generator, the wastewater and the ozone oppositely run in the first micro-interface generator to crush and disperse the ozone into micron-sized ozone micro-bubbles, and the mass transfer area between the ozone micro-bubbles and the wastewater in the oxidation reaction tank can be increased by the ozone micro-bubbles; the oxidation reaction between the ozone and the wastewater is promoted, so that the utilization rate of the ozone is improved. As the oxidation reaction tank is communicated with the wastewater pool, unreacted ozone in the oxidation reaction tank can be conveyed into the wastewater pool to oxidize wastewater, so that the unreacted ozone is fully utilized, and zero emission of ozone is realized.

The present invention discloses a zero-emission process for the coordinated treatment of multi-source wastewater in a steel mill. This process features zero-emission selective separation of desalted water and coal gas condensate from a softening station, recovery of natronasite from cold-rolling rinsing wastewater using high-pressure nanofiltration concentrate, coordinated treatment of high-pressure reverse osmosis concentrate with desulfurization wastewater and high-salt solid waste ash, and low-cost treatment of ammonia and nitrogen. The coordinated treatment of multi-source wastewater and high-salt solid waste ash significantly reduces the pollutant content in ash washing water, thereby reducing subsequent wastewater treatment costs and wastewater usage, significantly lowering the disposal costs of solid waste and wastewater, and achieving internal consumption and zero-emission of multi-source wastewater.

The invention relates to a zero-emission technology for producing power in a thermal plant using natural gas (NG) or liquefied natural gas (LNG), followed by capturing carbon dioxide (CO2) and converting it into green Dimethyl Ether (DME). The process integrates a gas-based combined cycle power plant with CO2 capture through Pressure Swing Adsorption (PSA) (106) and Monoethanolamine (MEA) purification. Captured CO2 undergoes a Reverse Water Gas Shift (RWGS) (306) reaction at temperatures above 900°C to form CO, which, along with syngas from steam methane reforming (308a, 308) at 525°C to 900°C and 25 ATA pressure, is converted into DME using a Cu / ZnO / Al2O3 catalyst at 250-300°C and 25-40 ATA. The process achieves an energy efficiency factor of 93.04%, producing 92 kg of DME per 48 kg of LNG, with a 94% greenhouse gas abatement, contributing to net-zero emissions (NZE) while generating bulk thermal power.

The embodiment of the utility model provides zero-emission methanol preparation equipment based on garbage gasification and water electrolysis. The equipment comprises a water electrolysis hydrogen production unit, a garbage gasification unit, a first methanol synthesis unit, a second methanol synthesis unit and a gas separation unit, the water electrolysis hydrogen production unit is respectively connected with the garbage gasification unit, the first methanol synthesis unit and the second methanol synthesis unit; the gas separation unit is respectively connected with the garbage gasification unit, the first methanol synthesis unit and the second methanol synthesis unit; the water electrolysis hydrogen production unit generates hydrogen and oxygen through electrolysis; the garbage gasification unit is used for carrying out gasification reaction by using oxygen provided by the water electrolysis hydrogen production unit to prepare synthesis gas containing carbon monoxide, carbon dioxide and hydrogen; the gas separation unit is used for separating carbon monoxide, carbon dioxide and hydrogen in the synthesis gas introduced from the garbage gasification unit, the carbon monoxide and the hydrogen are introduced into the first methanol synthesis unit, and the carbon dioxide is introduced into the second methanol synthesis unit for preparing methanol respectively.

The invention relates to the technical field of smelting, in particular to a waste gas zero emission control method and device, electronic equipment and a storage medium. The method comprises: acquiring a waste gas demand request; the requirement type of the waste gas demand request is judged based on the waste gas demand; if the exhaust gas demand request comprises a temperature requirement, controlling the first exhaust gas supply; if the exhaust gas demand request does not include a request, controlling the second exhaust gas supply; before the first waste gas supply is controlled or the second waste gas supply is controlled, the method further comprises the steps that the dust concentration value is obtained; judging whether the dust concentration value is greater than a dust concentration threshold value or not based on the dust concentration value; and if the dust concentration value is greater than the dust concentration threshold value, controlling a dust removal module to work so as to carry out secondary dust removal. The device has the effect that waste gas can be recycled to achieve green production.

The invention relates to the technical field of baking, and discloses an oxygen-rich combustion heat radiation baking device which comprises a baking ladle, a ladle cover, a roaster and a flue gas circulation unit. The ladle cover covers the top opening of the baking ladle; a smoke outlet is formed in the ladle cover and is communicated with the interior of the baking ladle; the roaster comprises a heat radiation sleeve, and the heat radiation sleeve is fixed to the ladle cover, located in the roasting ladle and extends in the first direction; the first direction is a vertical direction; an air inlet of the smoke circulating unit is communicated with the smoke outlet, and an air outlet is communicated with the interior of the baking ladle; a combustion channel for fuel gas and oxygen is formed in the heat radiation sleeve, and smoke flows out of an outlet of the heat radiation sleeve, then sequentially flows through the interior of the baking ladle, the smoke outlet and the smoke circulation unit and enters the baking ladle again through the smoke circulation unit to circularly flow. According to the invention, the baking temperature can be quickly increased to the required level by only needing a small amount of fuel gas, the baking time is shortened, the heat utilization efficiency is improved, and zero emission of flue gas is realized.

The invention relates to a combustion device and a combustion method for an SOFC (solid oxide fuel cell) power generation system taking carbon-based synthesis gas as fuel, and the combustion device disclosed by the invention can be used as a starting combustor and can improve the net power generation efficiency of the SOFC power generation system. Moreover, the combustion device disclosed by the invention utilizes the cathode tail gas at the starting temperature rise stage as the combustion-supporting gas to replace external air input, so that the device cost can be reduced while the economic effect of the system is improved. Meanwhile, according to the combustion device disclosed by the invention, the cathode tail gas entering the cathode tail gas cavity from the cathode tail gas branch to diffuse and flow can be used as cooling gas of the head of the combustor, so that the temperature of the head of the combustor is adjusted, and local overtemperature is prevented. Besides, the combustion device disclosed by the invention can be used for combusting the anode tail gas and the cathode tail gas of the SOFC power generation system after being mixed, so that unreacted fuel in the anode tail gas can be completely combusted, near-zero emission of CO2 is achieved, and the fuel utilization rate of the system and the overall efficiency of the system can be further improved.

A fleet and trolley system, a first method of charging a work machine, and a second method of charging a fleet of work machines are disclosed. The fleet and trolley system includes a trolley network, at least one zero-emission work machine, and a controller. The controller manages a scheduled usage of the trolley network, a power draw, and a distribution of the power draw by the work machine. The first method includes monitoring states of the work machine, scheduling a usage of the trolley network, and supplying electric power to the work machine. The second method includes monitoring states of a fleet, monitoring states of the trolley network, scheduling usages of the trolley network, and supplying electric power to one or more machines of the fleet. Advantageously, the disclosed system and methods may improve an efficiency, productivity, and longevity of a fleet of zero-emission work machines.

The present invention provides a hydrogen-based transport system having a plurality of vehicles, a vehicle platoon and a digital infrastructure, wherein a vehicle control unit of the vehicle is configured to detect a charging requirement of a vehicle battery and transmit the charging requirement to a central control unit via a communication unit, the central control unit is configured to create a coupling scheme and a charging scheme based on the charging requirement and a driving request, and transmit the coupling scheme and the charging scheme to the vehicle via a communication unit, wherein the vehicle and the charging vehicle are configured to couple to and disconnect from the vehicle platoon according to the coupling scheme during driving or in a parked state by means of the vehicle control unit and the coupling system, respectively, and wherein the vehicles each have a first operating mode and a second operating mode. The transport system of the present invention is locally emission-free, makes it easier to achieve climate goals for a green future, can be integrated into existing roads and has an unrestricted operational readiness.

The invention relates to an optimized storage high-efficiency regeneration treatment circulating slurry system and a construction method thereof. The construction method comprises the main construction steps that a hole cleaning and slurry replacement system is constructed; constructing a slurry three-stage purification treatment system; (3) installing a fresh slurry preparation system; installing an intelligent control module; manufacturing a cyclic regeneration slurry tank and a waste soil collecting pool; laying a storage silo; recycling and treating slurry in the hole; preparing new slurry; preparing cyclic regeneration slurry; storing regenerated slurry; and slurry replacement construction. According to the invention, a regeneration treatment circulating slurry system is adopted, the occupied area is reduced by optimizing a slurry storage mode and improving treatment equipment such as a slurry treatment system, an intelligent control system is adopted, the waste slurry treatment capacity is improved, the slurry quality is ensured, the zero emission target is realized, and the system has a wide application prospect.

The utility model belongs to the technical field of oxalate storage, and particularly relates to a harmless discharging device for volatile organic gas in a dimethyl oxalate storage tank, which comprises a storage tank and a liquid seal tank, the top end of the storage tank is connected with a discharging pipe, and a pressure transmitter for detecting air pressure in the tank is fixedly mounted on the storage tank. A regulating valve I in signal connection with the pressure transmitter is mounted on the discharge pipe, one end, far away from the storage tank, of the discharge pipe extends into the liquid seal tank and is positioned below the liquid level in the liquid seal tank, methanol is contained in the liquid seal tank, and the top end of the liquid seal tank is connected with a tail gas pipe. According to the utility model, organic matter gas in the storage tank is discharged into the liquid seal tank and is washed and dissolved by methanol, so that organic matters are prevented from being discharged into the atmosphere, zero emission of harmful substances is realized, and the device is environment-friendly.

The application relates to the technical field of wastewater treatment equipment, in particular to a zero-emission multistage wastewater treatment device for industrial high-salinity wastewater, which comprises a base, a fixing frame fixedly installed on the base and a supporting limiting frame fixedly installed on the fixing frame, the supporting limiting frame is slidably connected with a heat exchange box, the front end face of the fixing frame is provided with limiting assemblies corresponding to the heat exchange box on both sides, a sedimentation tank and a core treatment tank are installed on the fixing frame from top to bottom and located at the bottom of the heat exchange box, the heat exchange box, the sedimentation tank and the core treatment tank are sequentially communicated through connecting channels, a feeding pipe is arranged on the side wall of the sedimentation tank, the sealing assembly is driven to rotate by a motor-driven screw rod, the extrusion frame is driven to slide along the guide column, the pressure of the extrusion frame on the third sealing frame can be automatically adjusted, the extrusion plate can be tightly combined with the third sealing frame, the pressure is uniformly distributed, the traditional manual sealing adjustment mode is replaced, and the sealing reliability is further improved.

The invention provides a resource comprehensive utilization method of vanadium-containing steel slag and vanadium extraction tailings, and belongs to the technical field of application of metallurgical slag. Comprising the following steps: (1) proportioning raw materials; (2) low-temperature roasting pretreatment; (3) directionally extracting vanadium; (4) cleaning, reducing and extracting iron; (5) residues are functionally utilized; from the perspective of the whole scheme, all the steps are closely connected and have a synergistic effect. The raw material ratio and low-temperature roasting pretreatment lay a good foundation for subsequent directional vanadium extraction and clean reduction iron extraction, so that the vanadium and iron extraction is more efficient; and the residues obtained after vanadium extraction and iron extraction are subjected to functional utilization to prepare the light-weight insulating bricks, so that zero emission and resource utilization of the waste residues are realized. The method not only solves the environmental problem caused by accumulation of the vanadium-containing steel slag and the vanadium extraction tailings, but also has a good industrial application prospect by efficiently recovering vanadium and iron resources and preparing the light insulating brick with a high additional value.

The invention belongs to the technical field of scrubbing oil debenzolization regeneration in the coking industry, and particularly relates to a micro-positive pressure debenzolization device and method for an independent regenerator. Comprising a rich oil tank, the rich oil tank is sequentially connected with a lean and rich oil heat exchanger, a washing oil heater and a debenzolization tower through pipelines, and the reflux input end, the naphthalene oil output end, the gas phase output end and the steam input end of the debenzolization tower are respectively connected with a benzene-water separation tank, a tar asphalt tank, a condenser and a washing oil regenerator through pipelines. A steam input end and a slag discharge end of the wash oil regenerator are respectively provided with a jet ejector and a continuous jet negative pressure slag discharge device, a lean oil output end pipeline of the debenzolization tower is connected with a cold side input end of the lean and rich oil heat exchanger in parallel, and the jet ejector and the continuous jet negative pressure slag discharge device are connected with a tar asphalt tank through pipelines. According to the invention, the purpose of zero emission of VOCs is achieved by eliminating the generation of VOCs in the washing oil debenzolization process, so that the environmental pollution is reduced.

The utility model discloses a membrane method concentration desulfurization wastewater zero discharge system, and relates to the technical field of wastewater treatment. The device comprises a coagulating sedimentation system, an ultrafiltration system, brine concentration equipment, a full-automatic atomization system, a strong brine evaporator and an efficient purifier, the electrolysis flue gas purification exhaust pipe is connected with the strong brine evaporator, and the efficient purifier is connected with the electrolysis flue gas purification exhaust pipe. The waste heat of flue gas is used for providing heat for evaporation of atomized waste water, other heat sources do not need to be added, and energy consumption and cost are effectively reduced; the zero discharge of the wastewater is realized after the wastewater is treated by the device.

The invention belongs to the technical field of tunnel construction, and particularly relates to tunnel new energy operation equipment and an energy consumption control method thereof.The tunnel new energy operation equipment comprises a crawler chassis, the crawler chassis is driven by a motor, an electric telescopic arm is fixedly installed on the surface of the crawler chassis, and an external cable is slidably connected to the inner wall of the electric telescopic arm; the external cable is used for being connected with a power grid to provide electric energy for operation equipment. According to the tunnel new energy operation equipment and the energy consumption control method thereof, by arranging the energy storage driving control mechanism and the rotary conductive mechanism, seamless switching and 360-degree continuous rotation operation of the equipment in a power grid direct supply mode and a battery power supply mode are achieved when the equipment is used, and waste gas pollution in a tunnel is fundamentally eliminated. The system has the characteristics of zero emission, low noise and high energy utilization rate, the direct electric charge and ventilation energy consumption are remarkably reduced, the comprehensive energy consumption is reduced, and a brand new green and efficient equipment solution is provided for tunnel construction.

The invention provides an intelligent regulation and control flue gas denitration and desulfurization system, and relates to the field of flue gas denitration and desulfurization. The intelligent regulation and control flue gas denitration and desulfurization system comprises a flue gas inlet, a pretreatment module is arranged at the output end of the flue gas inlet, and a denitration system C and a desulfurization system D are arranged at the two output ends of the pretreatment module. According to the system, flue gas is sequentially treated through the flue gas inlet, the pretreatment module, the denitration system C and the desulfurization system D, data intercommunication and cooperative regulation and control of all links are achieved through the intelligent management and control platform, the system is different from a traditional denitration-desulfurization independent operation mode, the removal efficiency is improved by 5%-10%, and the energy consumption is reduced. Meanwhile, a denitration waste catalyst is recycled through a resource recycling system, desulfurization waste water is subjected to zero-discharge treatment to achieve gypsum high-valued treatment and waste water recycling, the comprehensive utilization rate of solid waste is larger than or equal to 90%, the treatment cost is reduced by 30% compared with a traditional process, and a digital twin engine (the running state of a real-time mirroring physical system supports virtual debugging of process parameters) is adopted.

The present invention provides an energy recovery pure electric tension machine and a control method thereof, belonging to the technical field of tension machines. The present invention comprises: a tension wheel; a first motor is connected to the tension wheel via a first magnetic powder brake, a first reducer and a first torque sensor in sequence; a second motor is connected to the tension wheel via a second magnetic powder brake, a second reducer and a second torque sensor in sequence; the speed and rotation direction of the first motor and the second motor are controlled by a control panel according to the values displayed on the first torque sensor and the second torque sensor; the control panel adjusts the tension of the tension machine by controlling the first magnetic powder brake and the second magnetic powder brake respectively. The present invention adopts an integrated charging and discharging motor to directly drive the reducer to drive the tension wheel to work, and adopts a magnetic powder brake to provide tension for the tension wheel, achieving the same effect as a traditional hydraulic tension machine, realizing zero fuel and zero emissions, effectively reducing energy consumption, and reducing construction costs.

The utility model discloses an anthraquinone process hydrogen peroxide production oxidation tail gas zero emission device, which relates to the technical field of anthraquinone process hydrogen peroxide production, and comprises a hydrogen peroxide oxidation tail gas pipeline connected with a tail gas pressurization circulation unit through a triple cooling heavy aromatics recovery unit, and the triple cooling heavy aromatic hydrocarbon recovery unit comprises a tail gas condensation aromatic hydrocarbon recovery part, a main cold aromatic hydrocarbon recovery part and an expansion refrigeration aromatic hydrocarbon recovery part. The device has the beneficial effects that most of heavy aromatics in the oxidized tail gas are recovered by adopting triple cooling and triple separation, so that the purpose of saving energy consumption is achieved; and meanwhile, the differential pressure energy of the oxidized tail gas is recovered and converted into kinetic energy to drive an oxygen compressor to operate by adopting an expansion refrigeration aromatic hydrocarbon recovery part, and the recovery efficiency of aromatic hydrocarbon is improved by utilizing the cold energy of pressure expansion.

The invention discloses a cement tanker cleaning waste recycling mechanism which comprises a circulating pool and a circulating pump, the circulating pump can continuously convey slurry waste in the circulating pool into a tanker, the slurry waste repeatedly cleans the tanker, the concentration of the slurry waste is increased, and the standard of semi-finished products of materials is met; the grain recycling pool can be used for collecting rainwater, hardened waste on the outer wall of the tank car and particle waste; and the arc-shaped scraping plate is used for conveying the hardened waste materials and the particle waste materials in the grain material recycling pool into the grain material storage pool. The grain recycling system has the beneficial effects that through the arrangement of the circulating pool, the grain recycling pool and the grain storage pool, the grain recycling pool can collect particle waste on a tank car body, particle waste washed in along with rainwater in a plant and particle waste separated by a solid-liquid separator, the recycling range is expanded, waste water in the plant is fully utilized, and the grain recycling system is environmentally friendly and free of pollution. And zero emission is realized.

The invention discloses a skid-mounted peroxy low-level radioactive waste incineration treatment device and process. The skid-mounted peroxy low-level radioactive waste incineration treatment device comprises a shell. The incineration assembly is arranged on the inner wall of the shell; the treatment assembly is arranged on the inner wall of the shell and comprises a bag-type dust collector arranged on the inner wall of the shell, a spraying mechanism connected with the inner wall of the bag-type dust collector, a two-stage filter arranged on one side of the shell and a condenser arranged on the inner wall of the shell. Through flue gas purification and condensate water recovery, zero discharge of wastewater is ensured, the filter is prevented from losing efficacy due to accumulation of condensate water, and the operation efficiency and safety of the system are improved.