28 results about "Alternative fuels" patented technology

This invention relates to a multi-biomass alternative fuel feeding system for cement production, comprising a negative pressure separator. The air inlet of the negative pressure separator is connected to a bag packaging unit, the air outlet of the negative pressure separator is connected to a Roots vacuum pump, the bottom outlet of the negative pressure separator is connected to a storage silo, the top of the storage silo is equipped with a level gauge, the conical part of the storage silo is connected to the Roots vacuum pump, a pneumatic gate valve is connected directly below the bottom outlet of the storage silo, a metering scale is connected directly below the pneumatic gate valve, a buffer silo is connected below the outlet of the metering scale, a belt conveyor is connected to the top of the buffer silo, an inverted conical feed silo and an iron separator are connected to the tail of the belt conveyor, a through-type belt scale is installed in the middle of the belt of the belt conveyor, and a pneumatic conveying device is connected to the bottom of the buffer silo. This invention can simultaneously process multiple types, different forms, and different entry methods of biomass alternative fuels. It has a compact structure, low investment, integrates storage, metering, and conveying, eliminates the need for bag breaking, is environmentally friendly, allows for rapid switching, provides stable multi-point feeding, and reduces energy consumption.

Turbine engines can utilize a combustor to combust fuel to drive a turbine that drives the engine. A fuel nozzle assembly can supply fuel to the combustor for combustion or ignition of the fuel. The fuel nozzle assembly can include a swirler and a fuel nozzle to supply a mixture of fuel and air for combustion. Increased efficiency and carbon-containing emissions requirements benefit from the use of alternative fuels that combust at higher temperatures than traditional fuels, requiring improved fuel introduction without flame holding or backfiring.

This invention discloses a system and method for coupling alternative fuel vortex gasification with a cement production line. The system includes a vortex gasification device, a decomposition furnace, a flue gas chamber, and a distribution device. The outlet of the distribution device is connected to both the flue gas chamber and an ash cooling system. The vortex gasification device includes a vortex gasification section, a suspension section, a fluidized bed section, and a wind chamber section. The vortex gasification section is equipped with an air inlet pipe, and a flue gas outlet pipe is connected between the air inlet pipe and the flue gas chamber. The top of the suspension section is equipped with a flue gas outlet connected to the decomposition furnace. The vortex gasification device is equipped with an alternative fuel feed inlet, a difficult fuel feed inlet, and a bed material feed inlet. The fluidized bed section is equipped with a slag outlet connected to the distribution device. This invention uses a vortex gasification device for the pyrolysis and gasification of alternative fuels, which does not affect the stable operation of the cement clinker calcination system. The resulting combustible gas and carbonaceous fly ash are more easily combusted after entering the decomposition furnace, and the NOx concentration in the decomposition furnace can be reduced.

This invention discloses a closed-loop system for the storage, transportation, and hydrolysis hydrogen supply of metallic fuels, belonging to the field of hydrogen energy storage and transportation technology. This invention aims to solve the problems of high cost, infrastructure dependence, and lack of recyclability in existing hydrogen storage technologies. The system includes: a porous metallic fuel preparation unit for preparing standardized porous metallic fuel flakes from metal powder; a hydrolysis hydrogen supply device for containing the fuel flakes and controllingly circulating water to carry out the hydrolysis reaction, generating hydrogen and metal hydroxide; a metal hydroxide recovery unit for collecting the metal hydroxide; and a metal regeneration unit for converting the metal hydroxide into metal powder for return, or for purification and sale, with new powder purchased as a replacement. The fuel flakes are stacked or wound, with micron-level gaps between the layers, and a catalyst is added to accelerate the reaction. Through system integration and closed-loop design, this invention achieves efficient recycling of metallic fuels, low storage and transportation costs, and completely eliminates dependence on hydrogen refueling stations and hydrogen pipelines, providing a new path for large-scale, low-cost, and cross-regional deployment of hydrogen energy.

The utility model discloses a kind of alternative fuel preburning furnace device, it is related to alternative fuel incinerator technical field, including preburning furnace, the feed inlet connected in preburning furnace one side, the tertiary air inlet connected in preburning furnace top and the exhaust port being set in preburning furnace top one side, one end of the exhaust port is fixedly connected with filter box, the inside fixed mounting of filter box has filter plate, the one side of filter plate movably is provided with brush head, the top fixed mounting of filter box has rotating motor;In the utility model, by setting rotating motor, drive brush head moves in filter box, the residue particles filtered by filter plate are cleaned, and by belt pulley drive driving bevel gear transmission to driven bevel gear, make cam rotate in filter box, protruding block and filter plate abut, residue particles are conveniently dropped to ash box, residue particles are collected and prevented from being discharged to air with waste gas, reduce particulate pollution.

This utility model discloses a circulating fluidized bed gasifier, a CO2-captured cement production line, and a gypsum decomposition system. The cement production line, by modifying the decomposition furnace structure and adding a circulating feed pipe, a jacketed circulating fluidized bed gasifier, and a green hydrogen system, achieves high-concentration carbon dioxide capture and alternative fuel recycling. The industrial by-product gypsum decomposition system uses an electromagnetically heated decomposition furnace, gasification coupling, and a green hydrogen system for power supply, achieving co-production of sulfuric acid and lime with low carbon emissions. Both the cement production line and the industrial by-product gypsum decomposition system convert carbon dioxide into combustible gas for their own combustion through a jacketed circulating fluidized bed gasifier, combined with green electricity-to-hydrogen technology, completely solving the problems of fuel cost and carbon emissions. This system features high capture efficiency, low energy consumption, and compact equipment, making it suitable for large-scale industrial applications.

The invention relates to a fuel injector for an internal combustion engine, particularly for liquid alternative fuels. The injector comprises an injection nozzle whose tip has a seat body with a sealing surface and at least one injection orifice. The injection orifices (5) are formed in a portion of a dome, downstream of a sealing surface. The seat body is made of martensitic or austenitic stainless steel and has an anti-cavitation layer (6) covering at least the sealing surface, the inner surface of the dome, and the injection orifices. The anti-cavitation layer is a chromium or nickel nitride-based coating deposited on the surface of the seat body, having a thickness between 0.5 and 50 µm and a hardness of at least 800 Hv, for a load of 0.1 kgF (0.98 N). (Fig. 1)

The utility model discloses a cement kiln powdery alternative fuel conveying device relates to cement production technical field, including bunker and pipeline, the lower surface fixed connection of bunker has buffer storehouse, and buffer storehouse is fixedly connected with the pipeline, and the surface fixed connection of pipeline has the connecting block, and through starting servo motor its output shaft will drive fixed agitator rod to rotate, and the whole use alternative fuel can reduce cement kiln production line to the consumption of traditional fuel, can handle various powdery alternative fuel, realized the resource utilization of the calorific value waste, solved solid waste disposal problem, promoted the recycling of resources, and the rotation of agitator rod will drive fixed screw rod to rotate together, and the rotation of agitator rod can scatter the accumulated material, and the screw discharge structure can adjust the rotating speed of screw, and the discharge capacity of powdery alternative fuel is accurately controlled, and it is ensured that the alternative fuel amount meeting production process standard enters the rotary kiln.

This invention discloses a dust collection system for alternative fuels, comprising a support frame, an air inlet box fixed above the support frame with an air inlet on one side, an air outlet box fixed above the air inlet box with an air outlet on one side, and a base plate separating the air inlet box from the base plate at the bottom. Multiple cloth bags extending into the air inlet box are fixed under the base plate, with their bottoms fixed to the lower part of the air inlet box and their upper ends penetrating the base plate into the air outlet box. A pyramidal dust collection box is connected below the air inlet box, with its bottom connected to a vertical discharge pipe, the bottom of which is connected to a horizontal screw conveyor pipe. Compared with existing technologies, this invention solves the problems of filtration accuracy adjustment, online unblocking, and anti-sticking and anti-clogging, and has significant economic and safety benefits.

The invention relates to a fuel injector for an internal combustion engine, in particular for liquid alternative fuels. The injector comprises an injection nozzle, the end of which has a seat body with a sealing surface and at least one injection hole. The injection holes (5) are formed in a dome portion, downstream of a sealing surface. The seat body is made of martensitic or austenitic stainless steel and has an anti-cavitation layer (6) covering at least the sealing surface, the inner surface of the dome and the injection holes. The anti-cavitation layer is a coating layer (6) consisting of a nickel layer or of a complex of an adhesion layer (6a) comprising at least 90 wt.% chromium and an outer layer (6b) of chromium nitride, the coating layer (6) being deposited on the surface of the seat body (3) and having a thickness of between 0.5 and 50 µm and having a hardness of at least 800 Hv, for a load of 0.1 kgF (0.98 N).

This utility model belongs to the field of fuel pretreatment technology, specifically a pretreatment system for alternative fuels used in cement kilns, including a crushing box; a crushing roller is arranged in the middle of the crushing box; a filter plate is installed in the middle of the crushing box at the bottom side of the crushing roller; a support frame is fixed to the side wall of the top of the crushing box; a discharge box is fixed to the top side wall of the support frame; a discharge shell is slidably connected to the top of the crushing box; the top of the discharge shell is slidably connected to the bottom of the discharge box; a connecting plate is fixed to the side wall of the discharge shell; a reciprocating screw is arranged in the middle of the bottom of the connecting plate; a motor is installed at the end of the reciprocating screw. Through the cooperation between the connecting plate, the reciprocating screw, the motor and the fixed frame, the discharge shell can reciprocate between the crushing box and the discharge box, so that the alternative fuel inside the discharge box can be evenly poured onto the crushing roller, reducing the risk of material accumulating in a large amount in a local area of ​​the crushing roller and ensuring crushing efficiency.

The utility model belongs to cement kiln disposal technical field, disclose a kind of alternative fuel incineration boiling furnace suitable for cement kiln, including boiling furnace body, the top of boiling furnace body is equipped with alternative fuel import, alternative fuel import place is equipped with material lifting device, the material lifting device includes driving motor, transmission mechanism, material lifting plate and heat shield, the driving motor and material lifting plate in the transmission mechanism connection are in furnace outside, the heat shield is arranged in the outside of transmission mechanism as its support and protection, driving motor drives transmission mechanism to drive material lifting plate to swing up and down.This boiling furnace is blown and the reasonable flow rate design by the material lifting effect and air cannon of material lifting device, fuel is in suspension in hearth, air cannon is blown to the violent disturbance of material combustion, destroys the original flame layer generated in combustion process, improves the combustion condition of material surface, promotes the full burnout of material, shortens the combustion time of material.

The invention relates to a fuel injector for an internal combustion engine, particularly for liquid alternative fuels. The injector comprises an injection nozzle whose tip includes a seat body with a sealing surface and at least one injection orifice. The injection orifices (5) are formed in a portion of a dome, downstream of a sealing surface. The seat body is made of high-temperature austenitic stainless steel and has an anti-cavitation diffusion layer covering at least the sealing surface, the inner surface of the dome, and the injection orifices. The anti-cavitation diffusion layer is obtained by a diffusion surface treatment and extends to a maximum depth of 30 µm, having a hardness of at least 750 Hv, for a load of 0.1 kgF. (Fig. 1)

Screening device (1) for separating solid mixtures as feed material according to particle size, in particular for separating difficult-to-screen, moist and / or sticky and / or coiling material, such as household and commercial waste, mixed construction waste, rubble, excavated soil, stockpile material from landfill remediation, alternative fuels, coiled goods and / or film and / or wire goods, biowaste, compost, waste wood, wood, green waste, with a plurality of screen shafts (4, 5) arranged downstream of the feed material in a conveying direction, wherein each screen shaft (4, 5) rotates about its own axis of rotation and wherein the feed material is transported on the screen shafts (4, 5) in the conveying direction according to the roller conveyor principle and is separated into a fine-grained fraction and a coarse-grained fraction, characterized in that the screen shafts (4, 5) are designed as conical screen shafts with laterally projecting screen blades (6) which, when the screen shafts (4, 5) rotate form cone-shaped bodies of revolution,wherein the screen shafts (4, 5) are arranged in the conveying direction of the feed material with alternating directions and wherein, when the screen shafts (4, 5) rotate, screen gaps (9) are formed between the screen blades (6) of adjacent screen shafts (4, 5) for separating the feed material.

The application discloses a kind of waste spinning alternative fuel combustion control method for cement kiln decomposing furnace, comprising the following steps: waste textile raw material is treated to obtain shaped alternative fuel;Shaped alternative fuel is transported to multiple independent fuel branch, and the terminal pulverizing device of independently adjustable speed is set on each fuel branch, and outlet end is connected to material injection pipe, and the outlet end of material injection pipe corresponds to a combustion area in decomposing furnace;At least one set of sensors is installed in each combustion area for real-time acquisition of combustion state parameters;According to the deviation between the combustion state parameters collected in real time in each combustion area and the set target range, at least one of the following control adjustments is performed: feed amount of material injection pipe;Particle size of fuel fed into material injection pipe;Fuel injection angle and / or speed of material injection pipe;Angle of guide vane at the inlet of three-stage air of decomposing furnace.The application can improve the stability of waste spinning as alternative fuel in the combustion in decomposing furnace and reduce pollutant emissions.

(Task) To provide a piping structure that can reduce the piping space required for alternative fuel injection valves. (Solution) A piping structure in one aspect of the present invention comprises a plurality of pipes including an alternative fuel pipe that is joined to a fuel injection valve formed on the upper part of a cylinder of a marine internal combustion engine and supplies alternative fuel injected from the fuel injection valve into a combustion chamber inside the cylinder to the fuel injection valve, and a cover pipe that covers the plurality of pipes collectively.

The application discloses a kind of waste and old tire combustion and metal wire recovery method, comprising the following steps, the locking wind system of recyclable metal waste and old tire combustion device is opened;Tire falls into positioning and wears mechanism along slide, positioning and wears mechanism overturn, and tire is worn to suspension rod;The above-mentioned process is repeated so that the following tire extrudes the tire in front, and the tire in front is pushed into combustion chamber, and combustion chamber burns tire to only remain the metal wire in tire, and the metal wire is pushed into recovery chamber from combustion chamber, and then is pushed into recess through slope;Air inlet pipe admits air, and gas enters recess through air passage, and the metal wire in recess is cut off, and rotating fork pulls down cut-off metal wire and separates from suspension rod, and metal wire falls and falls into storage hopper.The application can save the complicated process of waste and old tire pretreatment, and save the processing cost of waste and old tire as alternative fuel.

The alternative fuel grinding machine for the cement kiln comprises a grinding barrel, a mounting seat, chains, a feeder and a motor, the mounting seat is rotationally connected in the grinding barrel, the chains are fixed on the outer circumferential wall of the mounting seat, the motor drives the mounting seat to rotate and enables the chains to do centrifugal motion, a plurality of discharging holes are formed in the cavity wall of the grinding barrel, and the feeder is arranged in the cavity wall of the grinding barrel. And the discharging hole is communicated with a feeding hole of the feeder. Compared with the prior art, when hard or large materials are treated, the efficiency is high, the abrasion cost is low, and operation is easy. The maintenance cost is low, the downtime is short, and the equipment use cost is reduced. And the effect of treating materials with high hardness is good. Different materials can be separated in the crushing process, so that the materials can be separated more easily in the downstream recovery process. Meanwhile, compared with a single-shaft crusher, the large-scale continuous production requirement is met, the screen is not prone to being blocked, a clearing door is arranged, and the working efficiency is improved.

A lubricating oil composition configured for lubricating an internal combustion engine fueled with an alternative fuel having an auto-ignition temperature greater than about 700K. The lubricating oil composition includes at least a detergent system including at least one overbased metal-containing sulfonate detergent, at least one neutral to low-based metal containing sulfonate detergent, and at least one overbased metal-containing phenate detergent where the metal provided from the overbased sulfonate detergent is correctly balanced relative to the total detergent metal and / or the composition total base number.

This invention discloses a suspension-stage combustion device suitable for co-processing alternative fuels in cement kilns, comprising a tertiary air duct, a raw material feed inlet, an alternative fuel feed inlet, a suspension-stage combustion device, an air cannon control system, a decomposition furnace, and an air volume regulating valve. The tertiary air duct is connected to the suspension-stage combustion device and the decomposition furnace via a pipe equipped with the air volume regulating valve. The suspension-stage combustion device has several raw material feed inlets, several alternative fuel feed inlets, and an air cannon control system. This invention, by combining the suspension-stage combustion device and the decomposition furnace, allows the alternative fuel to be in a suspended state within the combustion device, ensuring sufficient contact with the tertiary air for drying and pre-combustion treatment. This solves the problems of poor dispersion of alternative fuels in the pre-combustion furnace, a single alternative fuel processing method, large fluctuations in the operation of the calcination system, low alternative fuel substitution rate, high equipment cost, and high energy consumption in existing technologies.

This invention discloses a two-stage alternative fuel pre-combustion furnace system, relating to the field of pre-combustion furnace technology. It includes a first pre-combustion furnace body and a second pre-combustion furnace body stacked vertically, a connecting device, and a jet injection system. The top of the first pre-combustion furnace body has a first top cavity, which has a first alternative fuel inlet and a first conventional fuel inlet. The top of the second pre-combustion furnace body has a second top cavity, which has a second alternative fuel inlet and a second conventional fuel inlet. The bottom of the first pre-combustion furnace body is connected to the inlet of a decomposition furnace. The connecting device connects the first and second pre-combustion furnace bodies. The inner walls of the first, second, and connecting devices are all provided with stepped hearths. The jet injection system is located below the stepped hearths.

The application discloses a kind of negative carbon type compression ignition clean fuel and its preparation method and use, belong to clean alternative fuel technical field.The fuel is by 45-55% hydrogenated vegetable oil, 20-30% green fischer-tropsch synthesis alkane, 10-20% polyoxymethylene dimethyl ether, 0.5-8% biological ester and 0.5-5% composite additive composition, does not contain any fossil hydrocarbon component, and whole life cycle carbon intensity≤-20g CO2eq / MJ.The application prepares fuel by raw material pretreatment, multiphase shearing mixing, additive compounding, on-line quality adjustment, product cetane number≥70, flash point>70℃, can be directly used in various compression ignition internal combustion engine, only needs light seal piece adaptation, with the advantages of negative carbon environmental protection, safe and economical, ready-to-use compatible, can effectively help traffic field deep decarbonization.

The invention relates to a fuel injector for an internal combustion engine, in particular for liquid alternative fuels. The injector comprises an injection nozzle, the end of which has a seat body with a sealing surface and at least one injection hole. The injection holes (5) are formed in a dome portion, downstream of a sealing surface. The seat body is made of high-temperature austenitic stainless steel and has an anti-cavitation diffusion layer covering at least the sealing surface, the inner surface of the dome and the injection holes. The anti-cavitation diffusion layer is obtained by a diffusion surface treatment and extends over a maximum depth of 30 µm and has a hardness of at least 800 Hv, for a load of 0.05 kgF.

Apparatus, means and methods of converting existing refineries and hydrocarbon processing facilities to ecologically friendly refineries (“eco-refinery”) are disclosed that employ heat and stored thermal energy for their internal processes to enable the overall operation of the facilities under improved environmental and carbon-neutral conditions. Also disclosed are the use of liquid organic hydrocarbon carriers (LOHC) to generate heat, hydrogen, and electricity under carbon-neutral conditions to power partially or wholly converted refineries and eco-refineries to enable the efficient use of clean energy sources and prevent the release of carbon dioxide to the environment. Also disclosed is a novel ecosystem for replacing traditional hydrocarbon fuels with LOHC materials for use internally within carbon-neutral refineries and also tailorable as alternative recyclable fuels to power mobile transportation systems and stationary facilities to enable their operation under overall carbon-neutral conditions with respect to the environment. Also disclosed is the use of eco-refineries to function as large-scale thermal energy storage systems and as liquid chemical batteries employing LOHC materials to store energy in the form of available heat and labile hydrogen when importing excess electrical energy from the grid and using stored thermal energy to generate and export needed electrical energy to the grid when deficit.