30results about How to "Uniform pyrolysis" patented technology

The invention belongs to the technical field of diesel exhaust aftertreatment, and relates to a novel detachable swirling vehicle SCR mixer and nozzle coupling device. The device comprises a casing. Front and rear flange plates are respectively disposed on two ends of the casing, and a swirling mixer is disposed in the casing. The mixer is designed in a hollow manner and is fixedly connected to the casing. A front flange plate connection port is an air inlet of the device, and a rear flange plate connection port is an air outlet of the device. A urea conveying elbow is arranged between the airinlet and the mixer, and the elbow is connected to the mixer. A urea nozzle is arranged on the rear of the mixer, and a casing section of the urea nozzle is in tapered design. The coupling device isbeneficial to urea pyrolysis, can effectively solve problems of urea cracking, urea crystallization and ammonia distribution uniformity, and the device is convenient to disassemble, and is convenientfor daily maintenance and repair.

A drying / pyrolysis furnace with rotary material beds comprises a closed casing, N concentric-ring-shaped planar rotary material beds, a feed opening, N material baffles, N material blanking openings, and at least one waste gas outlet and / or pyrolysis gas product outlet, wherein the rotary material beds are arranged in the casing; two ends of each material baffle are in seamless connection with the inner wall and outer wall of a corresponding rotary material bed respectively; each rotary material bed comprises a rotatable planar bed base, as well as the inner wall and the outer wall which stay still relative to the bed base; at least one through hole is formed in the bed base of each rotary material bed; the heights of N rotary material beds reduce gradually from the inside to the outside; seamless connection is realized; being rotated to the position of a material baffle along with the bed base of a corresponding rotary material bed, material is pushed outward by the material baffle, and then falls to the next rotary material bed connected with the former material bed through the material blanking opening of the former material bed; through the manner, the material falls from the inside to the outside, is transported, through the bed bases of the N rotary material beds, to the blanking opening of the outermost rotary material bed, and is finally discharged out of the drying / pyrolysis furnace through the material blanking opening.

The invention relates to a cobalt-iron alloy and nitrogen co-doped carbon oxygen reduction catalyst. The precursor of the catalyst is a core-shell structure, wherein the core of the precursor is a material with pore-forming and supporting functions, and the shell of the precursor is Fe, Co-ZIF, the shell of the catalyst is an iron-cobalt alloy. The core of the precursor as a support can ensure the stability of the core-shell structure and avoid the problem of catalyst active sites being embedded due to the collapse of the structure during the pyrolysis process. The hierarchical pore structure that is favorable for mass transfer can also promote the uniform dispersion of metal ions in the shell during the pyrolysis process; the shell uses the synergistic catalytic effect of CoFe alloy and active site N to greatly improve the catalytic activity of oxygen reduction; bimetallic iron Co-doped with cobalt and co-doped with nitrogen in the ZIF shell, the metal and nitrogen are spaced apart, which can promote the uniform dispersion of metal particles after high temperature pyrolysis.

The invention relates to a slurry of fiber-reinforced metal matrix composite material for extrusion 3D printing and a preparation method thereof. 4-15wt.%, metal powder 45-55wt.%, binder 2-4wt.%, dispersant 30-40wt.%, wherein the binder is polylactic acid, and the dispersant is dichloromethane. The invention is a method for extruding without heating, maintaining the arrangement of fibers in the metal matrix, and improving the performance of fiber-reinforced metal matrix composite materials; after the binder is removed, about 80% of the fibers with a length of 150-300 μm show Good orientation effect, the angle between the arrangement direction and the printing direction is kept within 10°, which maintains the precise orientation arrangement of carbon fibers in the metal matrix, which will greatly improve the mechanical properties of the composite material.

The invention relates to a moving bed biomass pyrolysis equipment, which comprises a pyrolysis furnace body I, a feeding device II arranged at one end of the pyrolysis furnace body I, and a feed device II connected to one side of the pyrolysis furnace body I through an air inlet channel. The air supply device III and the discharge device IV arranged on the other side of the pyrolysis furnace body I, the pyrolysis furnace body I is provided with a transmission mechanism, characterized in that: the transmission mechanism includes The fixed push plate on I, the reciprocating cart, the movable push plate set on the reciprocating cart, the high-leg push plate and the foot push plate, the fixed push plate and the movable push plate are arranged alternately in sequence On the top of the reciprocating cart, the high-leg push-feeding plate and the bottom-foot push-feeder plate are successively overlapped and arranged on one end of the reciprocating cart. The present invention adopts a reciprocating push plate pyrolysis furnace, which not only can fully pyrolyze biomass materials, but also can separate gaseous products and solid particles in time, without causing fouling and blockage on the surface of the equipment, which not only improves the utilization rate of energy, Increased commercial value.

The invention discloses a treatment method for oily sludge, which relates to the technical field of garbage treatment. The treatment method comprises: controlling the first pushing device to close the feed bin door; The bin door is opened, and the deoxidized material is transported to the main microwave pyrolysis furnace through the material conveyor belt; the third pusher is controlled to close the main furnace door of the main microwave pyrolysis furnace; temperature-controlled cycle pyrolysis is carried out in the main microwave pyrolysis furnace After the temperature-controlled cycle pyrolysis treatment, the material is conveyed to the auxiliary microwave pyrolysis furnace through the material conveyor belt; the secondary pyrolysis treatment is carried out in the auxiliary microwave pyrolysis furnace, and the residue after the secondary pyrolysis treatment is conveyed to the outlet through the material conveyor belt. feeding device. The invention has the advantages of uniform pyrolysis and high pyrolysis efficiency when the material is heated and pyrolyzed in the microwave cracking furnace.

The invention discloses a coal pyrolysis and activated carbon production integrated device. The integrated device comprises a thermal insulation jacket, a preheating furnace, a pyrolysis furnace used for performing pyrolysis on preheated coal, an activating furnace used for activating semi-coke generated after pyrolysis, and an activating agent conveying pipe used for inputting gas activating agents into the activating furnace. The preheating furnace, the pyrolysis furnace and the activating furnace are sequentially communicated from top to bottom. An activating furnace heating cavity is formed between the activating furnace and the thermal insulation jacket. A gas conveying channel is formed between the thermal insulation jacket and the pyrolysis furnace. The activating furnace is provided with an associated gas outlet for associated gas produced through activation of the semi-coke to enter the gas conveying channel. A gas heat carrier inlet for the associated gas to enter the pyrolysis furnace from the gas conveying channel is formed in the side wall of the pyrolysis furnace. The integrated device can effectively improve the pyrolysis and activation efficiency, the tar yield is effectively increased, high-quality coal gas, tar and activated carbon can be produced at the same time, and the additional value for quality-divided processing and utilizing of the coal is improved.

The invention discloses a garbage low-temperature pyrolysis furnace combustion-supporting device. The garbage low-temperature pyrolysis furnace combustion-supporting device is mainly composed of a garbage supporting frame and a plurality of hollow cones; the multiple hollow cones are uniformly installed on the garbage supporting frame, and the bottoms of the hollow cones are provided with openings; and the tops and the surfaces of the hollow cones are provided with vent holes penetrating through the openings of the bottoms. The garbage low-temperature pyrolysis furnace combustion-supporting device has the advantages of being high and uniform in garbage pyrolysis speed, not prone to being extinguished, low in operation cost and the like.

The invention discloses a microwave oven device for pyrolysis and a pyrolysis method thereof, which comprises a microwave furnace body and a reaction chamber arranged outside the furnace body; a closed end cover is arranged on the top of the reaction chamber body, and the There are four side air inlets distributed on the surrounding wall, four bottom air inlets are arranged at the bottom of the reaction chamber, and an electric heating device is arranged on the peripheral wall of the reaction chamber; the reaction chamber is connected with the furnace body through a movable link bracket. According to the needs of the material to be pyrolyzed, select the number of side air inlets or bottom air inlets, turn on the stop button and start button, after completing the above operations on the body, set the upper and lower limits of temperature, power level, and set the reaction according to needs After setting the time, turn on the electric heating button to keep the reaction chamber warm. When the actual temperature measured by the thermocouple reaches 300 degrees, turn on the microwave button, and choose whether to turn on the stirring function according to the experimental needs; when the pyrolysis of the material is completed, the microwave oven will automatically turn off.

The invention discloses an efficient selectable pyrolysis system and a using method thereof, wherein the efficient selectable pyrolysis system comprises a furnace body, a dry distillation kettle, gas nozzles and a cooling device, wherein a furnace chamber in the furnace body is internally provided with the horizontally-arranged dry distillation kettle, wherein the dry distillation kettle comprises an upper side part, a lower side part, a kettle top and a kettle bottom; the part on the upper side part close to the kettle top is communicated with an exhaust pipe; the other end of the exhaust pipe is connected with a diffusion valve; the part on the furnace part close to the exhaust pipe is provided with a temperature meter communicated with the furnace chamber; the lower part of the lower side part is communicated with gas outlets of four staggered gas nozzles; the gas outlets of the gas nozzles are connected with a control valve; the cooling device comprises a nitrogen intake pipe and a nitrogen exhaust pipe, wherein the nitrogen intake pipe is communicated with the kettle top; the nitrogen exhaust pipe is communicated with the upper side part; and when the efficient selectable pyrolysis system is used, if carbon production is emphasized the heating is finished to pyrolysis carbonization stage, and if biomass gas production is emphasized, the heating is finished to the forging stage. The design not only has good adjustability, high cost performance and high heating efficiency, but also the finished product carbon has good quality and high production efficiency.

The invention discloses a drying furnace or pyrolyzing furnace with rotary beds. The drying furnace or the pyrolyzing furnace comprises a closed shell, N concentric ring planar rotary beds, a feed port, N stop plates, N discharge ports and at least one pyrolysis gas product outlet and / or one tail gas outlet, wherein the N concentric ring planar rotary beds are positioned in the shell; the two ends of the stop plates are seamlessly connected with the inner walls and the outer walls of the corresponding rotary beds respectively; each rotary bed comprises a rotatable planar bed bottom and an inner wall and an outer wall which are kept still relative to the bed bottom; the bed bottom of each rotary bed is provided with at least one through hole; and the heights of the N rotary beds rise gradually from inside to outside and seamless connection is realized. When a material is rotated to the position of a stop plate along with the bed bottom of a rotary bed, the material is pushed from outside to inside by the stop plate so as to fall into the next joined rotary bed through a discharge port; and thus, the material falls from outside to inside step by step, is conveyed to the position of the discharge port of the innermost rotary bed through the bed bottoms of the N rotary beds and is finally discharged out of the drying furnace or the pyrolyzing furnace through the discharge port.

The invention discloses a treatment system for oily sludge, which relates to the technical field of garbage treatment. The treatment system includes: a feeding device, the outlet of the lower part of the feeding device is located above the material conveyor belt of the horizontal conveying device, including a feeding bin door and a first Pushing device; horizontal conveying device, including material conveyor belt, used to transport the materials output from the feed bin door to the main microwave pyrolysis furnace, auxiliary microwave pyrolysis furnace and discharge device in turn; the main microwave pyrolysis furnace, including temperature control The circulation conveying device, the main furnace door and the third pushing device, and the temperature-controlled circulating conveying device are used to detect the temperature of the material in the main microwave pyrolysis furnace in real time and control the material to be circulated in the main microwave pyrolysis furnace according to the temperature of the material until the material reaches Up to the preset temperature; and the discharge device, etc. The invention has the advantages of uniform pyrolysis and high pyrolysis efficiency when the material is heated and pyrolyzed in the microwave cracking furnace.