158results about How to "Achieve emissions" patented technology

A thin-wall annular part zero-point quick-change tool with cutting waste liquid collecting and discharging functions belongs to the technical field of aero-engine part manufacturing and comprises a zero-point quick-change tool mother disc, a zero-point quick-change tool son disc, a pneumatic blind rivet locking and positioning mechanism, a guide positioning pin mechanism, a thin-wall annular part clamp and a cutting waste liquid collecting and discharging assembly. According to the zero-point quick-change tool for the thin-wall annular part, cutting waste liquid can be efficiently discharged in the machining process of the thin-wall annular part, meanwhile, cutting impurities are filtered, and the reliability and stability of cutting waste liquid discharging are guaranteed; in the transferring process of the thin-wall annular part, the cutting waste liquid can be automatically sealed and stored, the cutting waste liquid is prevented from dripping on a mechanical arm or other transferring equipment of an automatic production line, the frequency and difficulty of equipment cleaning and maintenance are reduced, the production time occupancy rate of equipment cleaning and maintenance is further reduced, and the production efficiency is further improved. Meanwhile, potential safety hazards caused by the fact that cutting waste liquid drips on equipment are avoided.

The invention relates to the field of new energy, and discloses a regional multi-energy complementary zero-carbon energy supply system coupling a reversible solid oxide battery technology and a closed CO2 network, which comprises an RSOC heat-mass-electricity reversible converter, a closed CO2 circulating network, renewable energy power, an external heat source, a chemical energy storage, a natural cold and heat source and a terminal energy consumption module. According to the invention, the RSOC bidirectionally operates in a power generation mode and an electrolysis mode, the coupling chemical energy storage module realizes regional multi-time scale energy balance, photovoltaic power generation supplies power to RSOC electrolysis and terminal users at the same time, and light condensation and heat collection and industrial waste heat in the external heat source module can be integrated with the RSOC module to reduce electrolysis power consumption. The closed CO2 network adopts pressurized low-temperature CO2 as a circulating working medium of the regional heating and cooling network, and RSOC waste heat and natural cold and heat resources can be fully utilized on the source side; the network heating and cooling capacity is greatly improved at the terminal through phase change heat transfer, passive cooling of a user is achieved, meanwhile, the water source heat pump is coupled to meet the heating power requirements of different grades, and net zero carbon emission is achieved in the whole process.

The invention discloses a fuel cell parameter identification method based on data driving, and the method employs an improved dung beetle optimization (IDBO) algorithm to identify parameters delta 1, delta 2, delta 3, delta 4, Rc, b and theta, obtains optimal model parameters, improves the parameter identification precision of a fuel cell model, and builds a more accurate fuel cell model. The improved dung beetle optimization algorithm is improved as follows: a Cosine-Logistic-Tent composite chaotic mapping strategy is introduced in population initialization, and the uniformity and the ergodicity of the initial position of a dung beetle population are improved; a subtraction average optimizer is adopted to update the position of the dung beetle individual rolling ball, and the development and exploration ability of the algorithm is balanced; an adaptive t distribution disturbance strategy and a greedy strategy are introduced in a dung beetle group foraging stage, so that the global search capability of the algorithm is enhanced, and the calculation time is shortened.

The invention discloses an electric power infrastructure project-based concrete monitoring and curing device, which comprises a positioning frame fixedly placed at the periphery of a concrete infrastructure, the upper surface of one end of the positioning frame is fixedly connected with a rectangular frame, and the inner wall of the rectangular frame is movably connected with a threaded sleeve which performs lifting reciprocating motion; one side of the threaded sleeve is fixedly connected with a moving frame wrapping the periphery of the concrete infrastructure, the inner wall of the moving frame is fixedly connected with an annular pipe, and the inner wall of the annular pipe penetrates through and is fixedly connected with a plurality of atomizing nozzles for spraying a water source to the surface of the concrete infrastructure; rectangular plates are fixedly connected to the symmetrical positions of the two sides of the positioning frame correspondingly, the rectangular frame is provided with an adjusting mechanism for driving the movable frame to do lifting reciprocating motion, and the rectangular plates are provided with auxiliary mechanisms for covering the concrete infrastructure. And the curing effect on the concrete infrastructure is improved.

The invention discloses an electrified transformation fused salt energy storage and steam supply system in the petrochemical industry, and relates to an energy storage and steam supply system. The invention aims to solve the problem of excessive carbon emission in the production process of the existing petrochemical industry. The system comprises a groove type heat collecting system, a hot salt pump, a hot salt tank, a cold salt pump, a cold salt tank, a superheater, an evaporator, a preheater, a front preheater, a deaerator and a water feeding pump, the cold salt pump pumps fused salt in the cold salt tank into the groove type heat collecting system, and the hot salt pump sequentially pumps fused salt in the hot salt tank into the fused salt side of the superheater, the evaporator and the preheater from top to bottom; a water feeding pump sequentially pumps feed water in a deaerator into the water / steam side of the front preheater, the preheater, the evaporator and the superheater from front to back, fused salt and the feed water exchange heat in the pumping process, and superheated steam generated by heating the feed water enters a main steam system, the front preheater and the deaerator through a steam outlet of the superheater. The method is used for electrified transformation of fused salt energy storage and steam supply in the petrochemical industry.

According to the near transient response ammonia fuel supply system and method, a liquid ammonia tank provides fuel for an area where a liquid ammonia tank is located through liquid ammonia, and the fuel is distributed to a gasifier and a liquid ammonia supply branch after being controlled through a main electromagnetic valve; liquid ammonia passes through a gasifier and then is divided into three branches, the three branches enter a plasma processing unit through opening valves, enter an ammonia gas distributor through electromagnetic valves, then enter an ammonia gas cracker and enter a mixer through electromagnetic valves, and each plasma processor in the plasma processing unit is provided with an electromagnetic valve for independent control of ammonia gas processing. And the gas treated by the plasma passes through the catalyst bed, then enters the ammonia gas distributor to be mixed with the ammonia gas passing through the electromagnetic valve, then enters the ammonia gas cracker, then enters the mixer to be further mixed with the ammonia gas passing through the electromagnetic valve, and finally enters the fuel consumption end through the electromagnetic valve. The method has the advantages of zero carbon emission, high efficiency, easiness in expansion and the like.

The utility model relates to the technical field of industrial gas purification and heat energy recovery, and discloses a volatile organic compound-containing gas purification and heat recovery system, which comprises an oxygen supply element, an oxygen dilution device, a raw material gas mixing tank, a heat storage type thermal oxidation furnace, a waste heat recovery device and a purified gas mixing device which are communicated in sequence, wherein the raw material gas mixing tank is provided with an inlet of gas containing volatile organic compounds; and an outlet of the heat accumulating type thermal oxidation furnace is connected with an inlet of the oxygen diluting device and an inlet of the purified gas mixing device. According to the purification and heat recovery system for the gas containing the volatile organic compounds, the gas containing the volatile organic compounds is removed, heat exchange is carried out on cold water in the waste heat recovery device through high-temperature purified gas generated by the heat storage type thermal oxidation furnace, and the energy recovery utilization rate is increased; meanwhile, part of purified gas is returned to the oxygen dilution device, so that the utilization rate of oxygen is increased.

The invention relates to the technical field of sulfur hexafluoride degradation, in particular to a method and system for degrading sulfur hexafluoride based on tandem catalysis, and the method comprises the following steps: decomposing SF6 gas through a first treatment process; the decomposed gas is treated through alkali liquor treatment; and treating the gas treated by the alkali liquor through a second treatment process. After the gas after the second treatment process passes through a tail gas absorption tank, most of sulfur-containing and fluorine-containing gas is absorbed, and finally, mixed gas discharged from the tail gas absorption tank is harmless gas such as carrier gas, N2 and the like and can be directly discharged into the atmosphere, so that complete harmless degradation and emission of the SF6 waste gas are realized.

The invention discloses a low-emission and low-oil-consumption control method for a national seven diesel engine, which relates to an engine control technology and comprises the following steps: acquiring the running state and the post-processing regeneration state of a vehicle, and determining the running mode of a 48V system of the vehicle according to the running state and the post-processing regeneration state; the operation modes comprise a charging mode, a power assisting mode, a reheating mode and a light heating mode; when it is detected that the vehicle is in a DPF running regeneration state and the SOC of the power battery is larger than or equal to the minimum threshold a1, a 48V system of the vehicle enters a reheating mode; and when the SOC of the power battery is larger than or equal to the minimum threshold a1 and the temperature T6 at the outlet of the DPF is smaller than a set first temperature threshold, the 48V system of the vehicle enters a light heating mode. The invention further discloses a control device of the national seventh diesel engine with low emission and low oil consumption. According to the invention, the dynamic property of the vehicle is improved, the energy consumption is reduced, the problem of low SCR conversion efficiency under a low-temperature environment and a small-load working condition is solved, and ultralow NOx emission is realized.

The invention relates to the technical field of injection molding molds, in particular to a porous mold for ceramic slip casting, which comprises a porous ceramic slip casting mold for ceramic slip casting and a support frame for supporting the porous ceramic slip casting mold, the porous ceramic slip casting mold is composed of an upper mold and a lower mold which are distributed up and down, a mold plate is arranged above the upper mold, and a mold cover for sealing is fixedly connected between the mold plate and the upper mold; a transmission structure for lifting the upper die is installed on the supporting frame, the transmission structure is composed of a driving motor, a lead screw and a transmission part, the lead screw is rotatably installed on the supporting frame and penetrates through the interior of the die plate in a threaded mode, the transmission part is installed between the driving motor and the lead screw, and functional mechanisms are arranged on the side wall of the lower die and the supporting frame. The functional mechanism comprises an air exhaust structure and a material ejection structure. Air in the mold can be exhausted, defects such as bubbles and air holes are avoided, and the appearance quality and performance of products are improved.

The invention provides an electric cracking furnace system and an electric cracking furnace system operation method. The electric cracking furnace system comprises an electric cracking furnace, a gas replacement module, an energy storage module and a torch module; the electric cracking furnace comprises a replacement gas cavity and an electric heating cracking cavity arranged in the replacement gas cavity; a replacement gas outlet of the replacement gas module is connected with a replacement gas inlet of a replacement gas cavity of the electric cracking furnace, and a replacement gas component detection inlet of the replacement gas module is connected with a replacement gas outlet of the replacement gas cavity of the electric cracking furnace; a feed port of the torch module is connected with an electric heating cracking cavity of the electric cracking furnace, and the torch module is used for receiving materials in the electric heating cracking cavity when the electric cracking furnace has abnormal working conditions; a high-temperature medium outlet of the energy storage module is connected with an electric heating cracking cavity of the electric cracking furnace, and the energy storage module is used for providing a high-temperature medium for the electric heating cracking cavity when the torch module receives materials in the electric heating cracking cavity. The electric cracking furnace system ensures long-period stable operation of the electric cracking furnace through the gas replacement module, the energy storage module and the torch module.

The utility model is suitable for the technical field of metal screening, and provides a screening device for metal processing, which comprises a base, the mounting frame is fixedly mounted at the top of the base; the limiting box is movably arranged outside the mounting frame in a sleeving manner; the ultrasonic vibrator is mounted at the top of the mounting frame, and a mounting plate is mounted on the ultrasonic vibrator; the sieve plate is detachably mounted on the mounting plate; and the limiting assembly is arranged on the sieve plate, and the limiting assembly is used for clamping and stabilizing the sieve plate. The screening device for metal processing is high in flexibility and convenient to disassemble, so that comprehensive cleaning is facilitated, and mutual pollution of metal powder under different metal powder screening work is prevented.

The utility model relates to an automatic workpiece carrying and stamping production line which comprises a control panel, a feeding machine used for automatically taking, placing and straightening workpieces, a stamping machine used for stamping the workpieces, a receiving belt conveying line used for conveying the workpieces and a material frame used for storing the workpieces. The swing arm manipulator is used for transferring a workpiece of the feeding machine to one stamping machine, transferring a workpiece of the stamping machine to another stamping machine or transferring a workpiece of the stamping machine to the receiving belt conveying line; the material frame is positioned at an outlet of the receiving belt conveying line; according to the production line, automatic carrying and automatic punching of the workpieces and automatic straightening of the positions of the workpieces are achieved, the requirement for manual operation is reduced, and the production efficiency is greatly improved. The automatic operation process can effectively save time and labor cost, and the overall efficiency of the production line is improved.

The utility model relates to a dry stream type water flow channel suitable for a rainwater regulation and storage wetland purification system, which is characterized in that an upstream water body is communicated with a downstream water body by adopting a dry stream, and a first water distribution gabion wall used as a water inlet overflow weir is transversely arranged at the communicated part of the dry stream and the upstream water body; a second water distribution gabion wall used as a water making overflow weir is transversely arranged at the position where the first water distribution gabion wall is communicated with the downstream water body, and the first water distribution gabion wall and the second water distribution gabion wall are each provided with a low-position water passing channel. The water distribution gabion wall has a good rainwater retention effect in the process of transferring incoming water of an upstream water body to a downstream water body, pollutants in the water can be effectively filtered and diluted, the water quality is purified, the incoming water and outgoing water can be filtered and purified through the water permeation function of the water distribution gabion wall, and the water distribution gabion wall can be used for filtering and purifying water. And incoming water and outgoing water can quickly pass through when the incoming water quantity is too large, so that overflow caused by retention in upstream water and stream is avoided.

The invention discloses a metering industry park lighting facility operation and maintenance control system, which relates to the technical field of intelligent control and comprises a remote monitoring module, a fault diagnosis and alarm module, an energy-saving management module, a data analysis and report generation module and a mobile terminal management module. The remote monitoring module is used for monitoring the operation state parameters of the lighting facility in real time, and the operation parameters comprise the brightness, the voltage and the current of the lamp. According to the operation and maintenance control system for the lighting facilities in the metering industry park, the operation state parameters, including the brightness, the voltage and the current of the lighting facilities, of the lighting facilities can be monitored in real time through the remote monitoring module and the system, comprehensive monitoring of the lighting facilities is achieved, the operation and maintenance efficiency is greatly improved, the frequency and the cost of manual inspection are reduced, and the working efficiency is improved. Fault diagnosis can be automatically carried out on the operation parameters, alarm information is sent out after it is determined that faults exist, meanwhile, the positions of the faults are located, and operation and maintenance personnel can quickly respond and process the faults.

The invention provides a zinc-free vulcanizing aid, a rubber composition, a rubber product and a tire. The preparation method of the zinc-free vulcanizing aid comprises the following steps: pre-reacting zinc oxide, stearic acid, an anti-aging agent and a vulcanizing system drug in a solvent, and sequentially filtering to remove zinc and removing the solvent after the pre-reaction to obtain the zinc-free vulcanizing aid. The zinc-free vulcanizing auxiliary agent contains the intermediate which is active through pre-reaction, and the intermediate has the effect of promoting vulcanization and has the effect of activating an accelerant in advance, so that the zinc-free vulcanizing auxiliary agent can partially or completely replace zinc oxide in a common formula. A zinc-free rubber product can be prepared by adopting the zinc-free vulcanizing aid, zinc-free emission and environmental friendliness are realized, and a rubber composition can obtain rubber properties, such as crosslinking density, hardness, stress at definite elongation, hysteresis and the like, which are close to those of zinc-containing rubber under the condition that zinc is not contained under the action of the zinc-free vulcanizing aid.

The present invention discloses a super-long tunnel clean and sewage separation drainage structure suitable for cold regions, comprising a tunnel entrance drainage structure and a tunnel body drainage structure, as well as a clear water ditch outside the tunnel, a deep-buried ditch outside the tunnel, a sewage ditch outside the tunnel and a clean water pool. The tunnel entrance drainage structure comprises a central ditch and a side sewage ditch A. The central ditch is deeply buried below the freezing depth of the main tunnel entrance section. Side sewage ditches A are arranged on both sides of the main tunnel entrance section. The tunnel body drainage structure comprises a side clear water ditch and a side sewage ditch B. Side clear water ditch and side sewage ditch B are arranged on both sides of the main tunnel body section. The advantages are that the separation and discharge treatment of clean water and sewage during tunnel construction and operation are realized, and high environmental requirements are met; the drainage structures of the tunnel entrance section and the tunnel body section are arranged separately, which meets the insulation requirements of drainage in cold regions and can effectively prevent groundwater from seeping into the tunnel to cause freezing disasters; the service tunnel is used to assist in enhancing the drainage capacity of the main tunnel, and a super-large water discharge of the super-long tunnel is realized.

The application discloses a use of a quaternary deep eutectic solvent of zinc chloride tetrahydrate and phosphoric acid, the quaternary deep eutectic solvent of zinc chloride tetrahydrate and phosphoric acid is composed of zinc chloride as a hydrogen bond acceptor, phosphoric acid as a hydrogen bond donor and water as a solvation regulator; the quaternary deep eutectic solvent of zinc chloride tetrahydrate and phosphoric acid is used for depolymerizing lignin to prepare small molecule lignin; the quaternary deep eutectic solvent of zinc chloride tetrahydrate and phosphoric acid of the application utilizes Lewis acid and Bronsted acid to synergistically catalyze, efficiently depolymerizes lignin at 60-105 DEG C, and targets to cut off aryl ether bonds; the quaternary deep eutectic solvent has low viscosity and good fluidity, meanwhile, water molecules play a nucleophilic quenching role, and inhibit secondary condensation reaction; after the depolymerization reaction is completed, high-activity small molecule lignin can be obtained through simple water addition and precipitation; the solvent can be recycled; washing liquid can be closed-loop circulated, zero wastewater discharge is realized; the obtained product has a significantly reduced weight average molecular weight and abundant free phenolic hydroxyl groups, and can replace phenol to directly serve as a raw material to synthesize phenol-formaldehyde resin adhesive and the like.

The utility model discloses a copper hydroxide production dehydration device which comprises a bottom plate, a centrifugal machine is arranged in the center of the upper surface of the bottom plate, a plurality of second supporting columns are arranged on the periphery of the centrifugal machine, and one end of each second supporting column is fixedly connected to the upper surface of the bottom plate. A mounting plate is fixedly connected to the end, away from the bottom plate, of the second supporting column, a filtering device is arranged on the upper surface of the mounting plate and comprises a filtering barrel, a cover plate, a hydraulic cylinder, a hydraulic pipeline, a hydraulic pump, a liquid outlet pipe, an oil tank, a piston rod and an extrusion plate, and the bottom end of the filtering barrel is fixedly mounted on the upper surface of the mounting plate. The bottom end of the cover plate is fixedly mounted on the upper surface of the filter barrel, one end of the hydraulic cylinder is fixedly mounted in the center of the cover plate, and the piston rod is movably connected to the interior of the hydraulic cylinder. Through the structure, the flowability of copper hydroxide at a relatively low temperature is improved, and the viscosity of copper hydroxide is reduced, so that the dehydration efficiency is improved.

The utility model relates to the technical field of master batch machines, and discloses a double-color master batch machine which comprises an installation shell, a control display panel is fixedly installed on the front face of the installation shell, two sets of fixed partition plates are fixedly installed on the inner wall of the installation shell, and annular holes are formed in the tops of the fixed partition plates. And two groups of supporting frames are fixedly mounted at the top of the mounting shell. A motor I is arranged to drive a pinion to rotate, so that a first bull gear and a second bull gear which are meshed with the pinion are driven to synchronously rotate, independent and synchronous rotation of two heating and stirring barrels is realized, and heating resistance wires are uniformly distributed on the outer walls of the heating and stirring barrels in a matched manner, so that rapid and uniform heating of raw materials is ensured; and the motor II forcefully stirs the raw materials through the stirring rod and the anchor type stirring rod, so that the raw materials are fully mixed, and the effects of improving the stirring efficiency and the quality uniformity of the master batch are achieved.

This invention relates to the application of electromagnetic shielding composite materials, specifically to an electromagnetic shielding composite film with a gradient structure and its preparation method. Using a polymer film as the core layer, electromagnetic functional layers are sequentially deposited on both sides of the polymer core layer, and a carbon fiber felt is composited on at least one side, resulting in an electromagnetic shielding composite film with excellent electromagnetic shielding performance. The gradient multilayer structure design of this invention utilizes the principles of impedance mismatch at different interfaces and the skin effect to effectively improve the multiple reflections of electromagnetic waves between different functional layers. Furthermore, the type of polymer core layer can be changed according to different needs; using a polymer-based high-barrier film as the core layer can yield a high-barrier electromagnetic shielding packaging film that combines high barrier properties with high electromagnetic shielding.

The present application discloses a condensate discharge device, including: a trigger switch whose first end is connected to the positive electrode of the first power supply, and whose second end is respectively connected to the anode of the first diode and the control end of the first switch tube; a circuit for startup and malfunction protection composed of a first diode, a first capacitor, a first resistor, a second diode, a first switch tube, a second switch tube and a second capacitor; a solenoid valve control circuit connected to the second capacitor and the positive electrode of the first power supply, used to provide a circuit for the first power supply to supply power to the solenoid valve when the voltage of the second capacitor is higher than the first threshold; a solenoid valve connected to the solenoid valve control circuit, used to discharge condensate when receiving power from the first power supply. By applying the solution of the present application, the discharge of condensate can be effectively achieved, the cost is low, and malfunction protection is performed. The present application also provides an electrical device with corresponding effects.

The utility model discloses pressure test detection equipment for valve production and processing, which comprises a support frame, a clamping assembly is arranged on the support frame, the clamping assembly comprises an air cylinder and a moving plate, the air cylinder is arranged on the support frame, the moving plate is connected to the output end of the air cylinder, a fixed plate is arranged on the support frame, and the fixed plate is connected to the output end of the air cylinder. The fixed plate and the movable plate are each provided with a connecting pipe, the number of the connecting pipes is two, one connecting pipe is connected with a water inlet hose, the water inlet hose is provided with a removing assembly, the removing assembly comprises a fixed sleeve and a movable ring, the fixed sleeve is installed on the water inlet hose, and the movable ring is installed on the fixed sleeve. And the movable ring is slidably connected to the fixed sleeve, so that the technical problem that in the prior art, when existing pressure test detection equipment is used for valve detection, once a valve needs to be replaced in the detection process, a rapid clamping and releasing mechanism is lacked, and the continuous operation capacity and procedure connection are seriously affected is solved.

The invention provides rubber for an underground carry-scraper tire, a preparation method of the rubber and the underground carry-scraper tire. The preparation method of the rubber for the underground carry-scraper tire comprises the following steps: S1, mixing a vulcanizing aid, a filler, rubber and a first solvent to obtain a pre-mixture, and continuously introducing the pre-mixture into a reactor for solvent separation to obtain a rubber master batch; s2, after the master batch is internally mixed, protective wax and tear-resistant resin are added for mixing, and first-section master batch is obtained; s3, mixing the primary masterbatch with a first accelerant and a first vulcanizing agent, and performing final mixing to obtain final mixed rubber; and S4, performing vulcanization treatment on the final mixed rubber to obtain vulcanized rubber. The rubber material prepared by the method for continuously preparing the master batch has excellent processability and mechanical property, and the prepared vulcanized rubber has excellent tensile property, tearing property and the like, can adapt to harsh working environments, and is particularly suitable for preparing underground carry-scraper tires.

The invention relates to a low-foam cleaning agent with cleaning waste liquid capable of being recycled for cutting fluid and a preparation method and a use method thereof, and relates to the technical field of cleaning agents, the low-foam cleaning agent with cleaning waste liquid capable of being recycled for cutting fluid comprises the following raw materials by weight: 2-10% of a silicon-containing low-foam surfactant, 5-15% of alkyl alcohol amine, 5-10% of a surfactant, 5-10% of a surfactant, and the balance of water. The cutting fluid comprises the following components in percentage by weight: 2%-10% of a tricarboxylic acid antirust agent, 1%-5% of hydroxyl organic acid, 0.1%-1.0% of benzotriazole, 1%-5% of short-chain fatty acid, 1%-8% of boric acid, 0.1%-0.5% of dodecyl dimethyl ammonium chloride and the balance of water. The cleaning agent provided by the invention is especially low in foam, strong in cleaning force and free from any corrosion to cast iron, carbon steel and aluminum alloy, waste liquid after cleaning can be directly discharged into a cutting fluid groove in a machine tool, the use of cutting fluid is not influenced, zero wastewater discharge of the cleaning agent is realized, the cleaning agent is more environment-friendly, and the defects of the existing cleaning agent are overcome.

This invention provides a waste pyrolysis gas combustion device and its combustion method, belonging to the field of waste treatment technology. The invention includes: a shell, foam ceramic balls, a central tube, a preheater, a mixing tube, a co-firing air sleeve, and a flow-dispersing component. This invention uses foam ceramic balls as a heat storage carrier in conjunction with a preheater to achieve stable ignition of pyrolysis gas with low calorific value fluctuations, effectively adapting to the combustion requirements of waste pyrolysis gas with low calorific value and parameter fluctuations, and improving combustion stability. The flow-dispersing component in the mixing tube enhances gas-gas mixing, improving combustion efficiency and pollutant control, increasing combustion completeness, reducing pollutant generation, and optimizing combustion efficiency. The compact structure of the nested central tube and mixing tube with annular slot air intake achieves efficient space utilization and integrated application, realizing precise gas distribution and efficient mixing within a limited space. The overall layout of the device is compact and easy to integrate.

This utility model relates to an ammonia fuel regenerative combustion device, belonging to the field of energy conservation and emission reduction. It includes an ammonia fuel regenerative chamber and a combustion-supporting chamber, both connected to the furnace via connecting ports. The ammonia fuel regenerative chamber is equipped with a three-way reversing valve for introducing ammonia fuel and discharging flue gas. The ammonia fuel regenerative chamber contains an ammonia cracking regenerative body, a denitrification reducing agent injector, and a denitrification regenerative body. The porosity of both the ammonia cracking and denitrification regenerative bodies gradually decreases along the flue gas outflow (ammonia inflow) direction. The combustion-supporting chamber has a combustion-supporting gas inlet. The angle of the denitrification reducing agent injector is adjustable. An ammonia cracking catalyst is mounted on the ceramic skeleton of the ammonia cracking regenerative body. An SCR reduction catalyst is mounted on the ceramic skeleton of the denitrification regenerative body. This utility model can improve flame stability, increase ammonia cracking efficiency and denitrification efficiency, and reduce NO₂ levels in the combustion device. x Emissions will be reduced to achieve zero carbon emissions from the heating furnace.

The utility model discloses a feeding device of a thread rolling machine for bolt production, which relates to the technical field of feeding and comprises a body of the thread rolling machine, a placing plate and a storage box which are fixedly arranged at the top of the body, a discharging pipe is arranged at the bottom of the storage box, and the discharging pipe is provided with a first opening and a second opening. The device comprises a placement plate, the top of the placement plate is rotatably connected with a gear and a rod piece, one end of the rod piece is fixedly provided with a clamping block, and the top of the gear is fixedly provided with a vertical shaft. The exhaust fan sucks air into the filter box from the position of the through opening, the air entering the filter box can pass through the filter screen to filter metal scraps in the air, filtering of the air is facilitated, and workers are prevented from inhaling the air with the metal scraps.

The present application relates to an anti-corrosion and anti-leakage building wall, comprising a wall, wherein a storage cavity 1 and a storage cavity 2 are separated from each other in the wall, and the inner walls of the storage cavity 1 and the storage cavity 2 are both provided with a quicklime layer, and the inner wall of the storage cavity 1 is connected to a connecting pipe 1, and the inner wall of the storage cavity 2 is connected to a connecting pipe 2. The quicklime layer in the present application is provided to discharge the residual water in the storage cavity 1 and the storage cavity 2, so that the wall is not easy to retain moisture, the humidity of the wall is reduced, the wall skin is not easy to collapse from the end face of the wall, and the use safety of the wall is improved; the thermal expansion and contraction layer and the connecting hole are provided to accelerate the discharge of water in the wall, the water is not easy to penetrate the wall, the wall is kept dry, the microorganisms are not easy to corrode the wall, and the service life of the wall is extended; the water-changing color block is provided, so that the user can directly observe whether there is water accumulation in the storage cavity 1, and detect the corresponding outer wall of the wall and the wired pipeline, thereby reducing the maintenance scope of the staff on the wall and improving the maintenance efficiency of the staff.

The invention discloses a metal scrap compression device based on metal recovery, and relates to the technical field of metal recovery. Comprising a supporting table, a compression mold and an upper support are installed above the supporting table, the middle of the upper support is slidably connected with a translation support, the middle of the translation support is rotationally connected with a rotary discharging port and a driving shaft, and the rotary discharging port and one end of the driving shaft are fixedly connected to a rotary driving assembly; the rotary driving assembly synchronously drives the rotary discharging opening and the driving shaft to rotate, the rotary discharging opening rotates by a circle above the compression mold, metal chippings can be evenly spread in the radius direction of the mold, and local accumulation is avoided. Meanwhile, the driving shaft drives the vibrating wheel to rotate, and the vibrating boss on the vibrating wheel periodically extrudes the T-shaped plate, so that the T-shaped plate repeatedly knocks the side wall of the mold, vibrates the internal chippings, prompts the chippings to fall down to fill gaps, and enables the chippings to be distributed more uniformly and compactly before being compressed, thereby improving the density and uniformity of a final compressed block.