28results about How to "Guaranteed combustion effect" patented technology

The invention provides a sulfate-containing waste liquid treatment system and a sulfate-containing waste liquid treatment method for acrylonitrile and a combination device thereof, the system comprises at least two sets of waste liquid treatment units and a set of flue gas treatment unit, sulfate waste liquid is divided into two strands to enter the two sets of waste liquid treatment units for combustion, waste heat utilization and quenching purification, the discharged sulfur-containing flue gas is collected and enters a set of flue gas treatment unit, the sulfur-containing flue gas subjected to deep cooling, demisting and drying can be directly used for producing high-purity sulfuric acid, and a two-end and one-tail mode is adopted, so that the operation flexibility of the system is improved, and the treatment pressure is reduced. In the waste liquid treatment unit, a high-temperature reaction device adopts segmented air distribution, so that sufficient combustion of waste liquid is ensured, and SO2 loss is reduced; a special temperature field and structural design in the waste heat boiler can prevent the heat exchange device from scaling and blocking; a venturi scrubber is adopted in the quenching purification device to quench the flue gas, and a protective liquid film is formed on the contact interface of the high-temperature flue gas and a liquid phase, so that the temperature of equipment is effectively reduced, and corrosion of the high-temperature flue gas is prevented.

The utility model relates to the technical field of gas cookers, and discloses a gas cooker. The gas cooker comprises a furnace end, a valve body and an air door adjusting mechanism, the furnace end comprises at least two air inlets, each air inlet is correspondingly provided with an air door plate, and the air door plates can rotate relative to the air inlets so as to change the air inlet areas of the air inlets. The valve body is connected with the furnace end, and a valve rod for controlling the opening degree of the valve body is arranged in the valve body. The air door adjusting mechanism comprises a transmission part and at least two adjusting assemblies, each adjusting assembly is correspondingly connected with one air door plate, the adjusting assemblies are used for adjusting the air inlet area of the air door plate relative to the air inlet, the valve rod is in transmission connection with the at least two adjusting assemblies through the transmission part at the same time, and the air inlet area of the air inlet is increased along with increase of the opening degree of the valve body. According to the air door adjusting mechanism, the air inlet area of the furnace end is increased or decreased along with the increase or decrease of the gas amount, the combustion performance of the gas cooker in different dimensions and heat value areas is guaranteed, and the gas cooker is more convenient for users to use.

The utility model provides a burner and a stove. The combustor comprises a fire distributor and an inner ring fire cover covering the fire distributor, a first gas mixing chamber and a second gas mixing chamber are defined between the inner ring fire cover and the fire distributor, and the first gas mixing chamber and the second gas mixing chamber are separated from each other. A first fire outlet hole communicated with the first gas mixing chamber and a second fire outlet hole communicated with the second gas mixing chamber are formed in the inner ring fire cover, and the second gas mixing chamber is eccentrically arranged relative to the inner ring fire cover. Thus, the problem that the first fire outlet hole and the second fire outlet hole compete with oxygen during combustion can be better avoided, sufficient combustion of gas at the first fire outlet hole and the second fire outlet hole is guaranteed, and the problems that smoke exceeds the standard, and heat efficiency is low are avoided.

The novel environment-friendly torch comprises a torch body, a combustion part and a supporting part are arranged on the torch body, the combustion part is located above the supporting part, an air outlet is formed in the bottom of the combustion part, an air inlet, an air extracting pump and an air collecting chamber are arranged on the supporting part, and the air inlet, the air outlet and the air collecting chamber are communicated with an air collecting opening. The gas collecting chamber is electrically connected with the gas collecting opening and the sucking pump, natural hydrate fuel is placed at the bottom of the gas collecting chamber, the space between the bottom of the gas collecting chamber and the supporting part is filled with the thermal insulation layer, the fuel is decomposed into methane in the gas collecting chamber, and the combustion effect can be improved by mixing the methane and air through the sucking pump. Compared with fuel such as propane, the natural gas hydrate is small in size and long in combustion time, compared with hydrogen fuel, the natural gas hydrate only needs a low-pressure condition and is better in safety, more importantly, the fuel is rich in reserves, only a small amount of carbon dioxide and water are generated after combustion, and the natural gas hydrate fuel is environmentally friendly, low in manufacturing and obtaining cost, simple in storage mode and suitable for popularization and application. And the economic benefits of producers are greatly improved.

This invention relates to a commercial vehicle intake system and a commercial vehicle, belonging to the field of vehicle power systems. The technical solution is as follows: A commercial vehicle intake system includes an intake duct, an oil filter, and an air filter connected sequentially along the airflow direction. A water-screening assembly is installed within the air inlet of the intake duct, comprising a water-screening plate and a water collection hopper, the bottom of which connects to the outside of the intake duct. A tower-type water-filtering assembly is installed within the air outlet of the intake duct, comprising multiple stacked blades, with a first water collection trough below the blades. A swirl assembly is installed at the air inlet of the oil filter, comprising a swirl fan, with a second water collection trough below the fan. This solution, through a three-stage water removal assembly, gradually separates moisture from the air while simultaneously improving the removal capacity of dust and other impurities, significantly reducing the moisture and dust content of the air entering the oil filter and air filter, thus ensuring the service life of the oil filter and air filter and the combustion performance of the engine.

The present invention relates to the technical field of hot blast furnace equipment, and provides a biomass pellet low-temperature hot blast furnace, the hot blast furnace comprising: a fuel bin, which is provided with an upper material limit and a lower material limit, and an observation port is provided on the outside, and the material is automatically intermittently discharged by matching the change of the output hot air through the discharge valve on the left; the discharge port is located at the intersection of the bottom of the fuel bin and the combustion chamber at the bottom of the hot blast furnace, and is used to control the fuel to enter the specific position inside the combustion chamber. The present invention minimizes the floor space by means of a built-in fuel bin, and is suitable for the site requirements of different customers without the need for an additional fuel bin; and the valve-type control of discharge prevents fuel accumulation, makes the combustion more complete, prolongs the combustion time and improves the utilization rate; in addition, the combustion products generated by burning wood pellets or rice husk pellets can be effectively removed from the combustion chamber through a chain-type ash discharge structure; finally, the vulnerable parts in the high-temperature zone of the exchanger are small in size and easy to assemble and disassemble, which effectively reduces consumables and saves maintenance costs.

The utility model relates to the related technical field of spraying fireworks, in particular to a small modeling spraying firework which comprises a base and a main cylinder arranged on the base, the main cylinder is internally divided into a plurality of spraying cylinder cavities, the bottom of each spraying cylinder cavity is provided with a trigger extension assembly, the top end of each trigger extension assembly is provided with a movable plate, and the movable plate is connected with the base. A gunpowder layer is installed at the top end of the movable plate, a main lead is arranged in the base, an auxiliary lead is arranged in a cavity of the firework spraying cylinder, one end of the auxiliary lead is connected with the main lead, the other end of the auxiliary lead is connected with the gunpowder layer, and when the auxiliary lead is ignited, the trigger extension assembly can be driven to operate, and then the gunpowder layer is ignited. And the gunpowder layer is driven by the movable plate to move upwards while burning, so that the burning effect of the whole gunpowder layer is guaranteed, and the spraying decoration effect is better.

This application relates to a hydrogen-blended combustion system for a coal-fired power boiler and a method for operating the system. The method includes: acquiring the operating status information of the coal-fired power unit; determining the operating stage of the unit based on the operating status information; during a deep peak-shaving period, controlling the pulverized coal-hydrogen mixed burner in the main combustion zone to blend hydrogen for combustion, assisting in stable combustion at low loads; during a period of rapid load increase, controlling both the pulverized coal-hydrogen mixed burner in the main combustion zone and the pure hydrogen burner in the burnout zone to simultaneously blend hydrogen, rapidly increasing the boiler's thermal load; and during a period requiring peak load, controlling both the pulverized coal-hydrogen mixed burner in the main combustion zone and the pure hydrogen burner in the burnout zone to simultaneously blend hydrogen, enhancing the unit's constant load capacity. This effectively improves the dynamic load adaptability of the coal-fired power unit and ensures the combustion effect of the coal-fired power boiler.

The utility model discloses a waste gas pretreatment combustion device which comprises a gas inlet pipe and a washing tower, a first branch pipe is arranged on the gas inlet pipe, a thermocouple is arranged in the gas inlet pipe, the gas inlet pipe is communicated with the washing tower, a fan is further arranged on the gas inlet pipe, a pretreatment mechanism is arranged between the fan and the first branch pipe, and an ash removal assembly is arranged in the washing tower. A gas outlet pipe at the top end of the washing tower is connected with a U-shaped pipe, a drying assembly is arranged on the U-shaped pipe, and a waste gas combustion mechanism is arranged at the bottom end of the U-shaped pipe. According to the utility model, a small amount of granular impurities can be conveniently removed before waste gas is combusted, so that the subsequent waste gas combustion effect can be ensured, the condition of combustion crystallization is avoided, meanwhile, cleaning operation can be periodically carried out, blockage is avoided, the normal operation of the device is ensured, and the combustion treatment effect on the waste gas is ensured.

The application aims to provide a superheat control type ammonia fuel supply system based on fuel activity design, belonging to the field of fuel supply, comprising a liquid ammonia common rail type supply system, a diesel common rail type supply system, a fuel injection device, a superheat control unit and other components of an engine. Hydroxyl-rich gas is used as a combustion-supporting agent instead of pure hydrogen fuel. The safety of the system is ensured, the dynamic thermal management characteristics during engine operation are fully considered, ammonia fuel superheat control is performed, and the direct control form of the sleeve type valve rod strong magnetic force electromagnetic actuator is adopted for the ammonia fuel injection of the application, realizing high response and precise injection of the double fluid mixed gas. The electromagnetic actuator structure of the multi-hole valve rod is adopted to realize the rapid response of the control valve and the separation of the servo oil circuit and the supply oil circuit; the new valve rod structure is adopted to reduce the weight of the valve and the electromagnetic force demand, improve the response performance, and fundamentally avoid the cavitation problem caused by the traditional control valve structure.

The utility model discloses a wind shield of an oven, which comprises a main wind shield, the main wind shield is provided with a magnetic part, the magnetic part is used for being magnetically adsorbed on a baking tray or a seat body, so that the upper part of the main wind shield covers the baking tray and the lower part of the main wind shield covers the seat body, and the main wind shield is provided with an air inlet. The air inlet penetrates through the first side face and the second side face of the main wind shield, the air inlet is formed between the upper portion of the main wind shield and the lower portion of the main wind shield and used for being staggered with the baking tray and the base body, and the main wind shield is provided with a sub wind shield which covers the air inlet on the first side face of the main wind shield. A first air inlet gap is formed between the sub air baffle and the first side face of the main air baffle and communicates with the air inlet. The utility model further discloses a wind blocking structure of the oven. In the utility model, through the arrangement of a double-wind-shielding structure, an effective wind shielding effect is realized, the effects of sufficient combustion, concentrated combustion flame and the like are ensured, and the use effect of the oven is effectively improved.

This invention relates to a commercial vehicle air intake assembly and a commercial vehicle, belonging to the field of vehicle power systems. The technical solution is as follows: a commercial vehicle air intake assembly includes an air intake body, within which a water screening component, a water filtering component, and a vortex component are provided. The water screening component includes a water screening plate and a water collecting hopper, the bottom of which connects to the outside of the air intake body. The water filtering component includes multiple stacked blades, with a first water collecting groove below the blades, which connects to the outside of the air intake body. The vortex component is located below the water filtering component, and a second water collecting groove is also provided below the vortex component, connected to the outside of the air intake body through the first water collecting groove. This solution, through a three-stage water removal assembly, gradually separates moisture from the air while simultaneously improving the removal capacity of dust and other impurities, significantly reducing the moisture and dust content of the air entering the oil filter and air filter, thus ensuring the service life of the oil filter and air filter and the combustion performance of the engine.

The invention relates to the technical field of annealing furnaces, and discloses a bell-type annealing furnace which comprises a base, a furnace body and a furnace cover, an inner cover; a combustion cavity is formed between the outer cover and the inner cover, and a heat exchanger communicated with the combustion cavity is arranged on the outer cover; the smoke exhaust pipe is communicated with the inner cavity of the heat exchanger, and an opening adjusting valve is arranged on the smoke exhaust pipe; one end of the combustion-supporting air inlet pipe is communicated with an air outlet of the fan, and the other end of the combustion-supporting air inlet pipe penetrates through the heat exchanger and is communicated with the burner through a pressure-stabilizing pipe; the pressurizing pipe is communicated with the area, penetrating out of the heat exchanger, of the combustion-supporting air inlet pipe and the pressure stabilizing pipe, and the combustion-supporting air inlet pipe is provided with a one-way valve corresponding to the pressurizing pipe; and the compressed air pipe is communicated with the pressure stabilizing pipe. According to the bell-type annealing furnace provided by the invention, the opening adjusting valve is arranged, so that the air pressure in the combustion cavity is kept to be micro-positive pressure, and the air pressure in the combustion cavity is prevented from being too low or too high; and by arranging the pressurizing pipe and the compressed air pipe, the air pressure of the combustion-supporting air in the pressure stabilizing pipe is increased, and therefore the oxygen content in the unit volume is increased.

The present invention provides a swirl burner head, comprising a central cavity; an intermediate cylinder is sleeved on the central cavity; an outer cylinder is sleeved on the intermediate cylinder; an inner cylinder is connected to the end of the central cavity in the outer cylinder; a sleeve is provided on the inner cylinder surface inside the outer cylinder; an L-shaped ring plate connected to the central cavity, the outer cylinder and the intermediate cylinder is sleeved on the sleeve; a flange plate is provided at the end of the outer cylinder; the outer cylinder, the L-shaped ring plate, the central cavity, the sleeve and the flange blockage form a swirl chamber; the swirl chamber is connected to the inner cylinder through a swirl tube; the swirl chamber is connected to the central cavity through a second swirl plate; the outer cylinder, the intermediate cylinder and the L-shaped ring plate form a second swirl chamber; a swirl plate is provided between the outer cylinder and the intermediate cylinder; an air duct is connected to the outer cylinder; a partition is provided in the air duct; the partition divides the air duct into a first air duct and a second air duct; the first air duct is connected to the second swirl chamber; the second air duct is connected to the swirl chamber; regulating valves are provided in the first air duct and the second air duct, and the combustion effect is guaranteed by the three swirl winds of the burner head, thereby improving the combustion effect of the fuel.

The invention provides efficient environment-friendly biomass fuel processing equipment, and belongs to the technical field of biomass fuels, the efficient environment-friendly biomass fuel processing equipment comprises a supporting frame, the supporting frame is connected with a driving assembly, a protective cover and a material bearing assembly, the driving assembly comprises a transmission belt, a driven belt wheel, a driving belt wheel and a motor, and the material bearing assembly comprises a cutting cover plate and a cutting box; the cutting box is connected with a feeding hopper and a discharging hopper, and the dehumidification assembly is used for drying crushed materials in the cutting box through wind power; the discharging assembly can quickly discharge the materials by utilizing the power of the driving assembly; and the crushing assembly improves the material cutting and crushing effect through rotation of the driving assembly. The cutting device has the beneficial effects that air can be quickly fed into the cutting box through rotation of the fan blades, so that materials are air-dried, the water content of the materials is reduced, the combustion effect of the materials after crushing is guaranteed, and the crushing effect and the processing quality are improved in cooperation with the crushing assembly.

The present invention provides a circulating fluidized bed boiler multi-fuel efficient blending system, which relates to the technical field of boiler blending devices, including: a boiler body; two rectangular block-shaped support blocks are welded on the bottom end surface of the boiler body. The present application sets up auxiliary parts, first, it can realize the gas supply for combustion through a booster fan; second, while realizing the gas supply for combustion, it can realize the auxiliary push inside the boiler body of multiple fuel tanks; third, due to the internal combustion, the gas expands, and the expanded gas is easy to flow back. Through the gas supply of the booster fan, the exhaust gas backflow can be avoided to cause pollution; fourth, when the first discharge pipe is blocked, the three-way valve is adjusted, and then the booster fan is started, at this time, the first discharge pipe can be cleared, which solves the problem that although the existing device can be blended, it cannot achieve sufficient blending of multiple fuels through one structure through structural improvements to achieve the purpose of low cost and high blending efficiency.

The utility model discloses a gas valve capable of discharging liquid, and relates to the technical field of gas valves. The gas-liquid separation valve comprises a valve body and a gas-liquid separation chamber, the gas-liquid separation chamber is welded on the lower surface of the valve body, the upper end of the gas-liquid separation chamber is communicated with the interior of the valve body, a floating ball is movably installed in the gas-liquid separation chamber, a flow guide channel is obliquely arranged on one surface of the gas-liquid separation chamber, and one end of the flow guide channel is communicated with the interior of the gas-liquid separation chamber. A valve port is installed in the flow guide channel, a valve element is rotatably installed in the valve body, one end of the valve body is sleeved with a first valve seat, and the other end of the valve body is sleeved with a second valve seat. By means of the gas-liquid separation chamber, the floating ball and the flow guide channel structure, water carried in the gas fuel transportation process can be conveniently collected into the gas-liquid separation chamber and then discharged through the flow guide channel, separated discharging of gas and liquid is achieved, and the combustion effect of the gas is guaranteed.

The application relates to the technical field of gas stoves, and discloses a gas distribution disc, which comprises a plurality of radial gas inlet channels extending along a radial direction, at least one radial gas inlet channel is connected with at least two gas distribution channels located on non-adjacent ring lines, and the gas inlet channels comprise one or more of the following: a first gas inlet channel, an air inlet end of which is arranged on a center side, and an air outlet end of which is arranged on a circumferential side; a second gas inlet channel, an air inlet end of which is arranged on a circumferential side, and an air outlet end of which at least comprises a center side; and a third gas inlet channel, an air inlet end of which is arranged on a middle ring, and an air outlet end of which at least comprises a center side and a circumferential side. The gas distribution disc provided by the embodiment of the application is provided with one or more different gas inlet channel structure forms, can improve the uniformity of gas distribution to different gas distribution channels and the stability of gas flow and pressure, and can effectively guarantee the combustion effect of the gas stove. The application further discloses a burner and a gas stove.

The invention discloses a production process of agilawood rock tea, and relates to the technical field of tea production. Tea can be taken and placed by taking and placing the fixing plate, the connecting column and the partition plate, the depth of the connecting column in the storage cavity is changed by changing the height position of the connecting column in the fixing plate, that is, the height position of the partition plate in the storage cavity can be changed, and therefore the height of the tea at the upper end of the partition plate and the ash surface can be changed; the volatilization temperature required by the agilawood can be controlled; after the control valve is opened, oxygen can be introduced into the heating cavity through the air inlet pipe, so that charcoal fire can be fully combusted, air in the heating cavity can be exhausted through the air outlet holes, and the combustion effect of the charcoal fire can be guaranteed; and the combustion condition of charcoal fire in the heating cavity can be monitored in real time through the observation window, and the charcoal fire can be put in and taken out easily by disassembling the observation window.

The utility model belongs to the technical field of combustors, and particularly relates to a low-nitrogen submerged combustion gasifier combustor, which is characterized by comprising an upper combustor, a cylindrical combustion chamber and a lower combustor, the upper combustor comprises an upper volute, a fuel gas assembly, a flame detection assembly, a fire observation assembly, a flame detector, an ignition gun, a primary air inlet, a secondary air inlet and an instrument air distributor, the lower combustor comprises a lower volute, a lower volute inner spray, a plurality of cooling pipe water spray holes and an air duct fuel gas spray gun, and the combustion chamber is integrally cooled through a water jacket. And cooling water enters from low position and exits from high position. Overall fuel grading and rich-lean combustion are adopted, the limited space of the upper volute and the lower volute and the cylindrical combustion chamber is fully utilized, the low-nitrogen combustion technology is utilized, reverse jet flow combustion is formed, a center backflow area is formed, the effects of stabilizing flames, prolonging the smoke stroke and guaranteeing sufficient combustion are achieved, and low-concentration emission of NOx and CO is achieved.

The invention discloses a tar self-cleaning type coke oven gas burner. The burner comprises a shell and an inner container, the inner container is arranged in the shell, and an interlayer cavity is formed between the inner container and the shell. Wherein an inner space defined by the inner container is a coke oven gas channel. An inner space defined by the interlayer cavity is a combustion-supporting air channel. And a porous medium layer is arranged in the coke oven gas channel. The combustor further comprises a decoking oxygen pipeline. And the decoking oxygen pipeline extends into the shell from the outside and penetrates through the combustion-supporting air channel to be connected with the porous medium layer. By adopting the coke oven gas burner disclosed by the invention, off-line or on-line tar cleaning can be carried out without stopping gas, so that the problems of process product quality reduction, energy waste, operation danger and the like in the prior art are avoided, and continuous and stable supply of high-quality coke oven gas is ensured; and normal operation of the coke oven gas burner and the industrial furnace is maintained.

The application discloses a hydrogen injection strategy optimization method for a dual-fuel X-type rotor engine, obtains geometric parameters of the X-type rotor engine, establishes a CDF fluid simulation model of a dual-fuel X-type rotor engine with gasoline intake port premixing and hydrogen in-cylinder direct injection, determines engine ignition parameters and operating conditions of a single hydrogen injection strategy, and obtains, through simulation calculation, a hydrogen injection time point at which a hydrogen distribution area is maximum and a hydrogen injection time point at which a flame front area is maximum. Under the condition that the hydrogen injection total amount at the two hydrogen injection time points is the same as that of the single hydrogen injection strategy and the hydrogen injection mass fraction at the two hydrogen injection time points is taken as a variable, the hydrogen injection mass fraction corresponding to the hydrogen injection time point at which the hydrogen distribution area is maximum and the hydrogen injection mass fraction corresponding to the hydrogen injection time point at which the flame front area is maximum are obtained through simulation calculation, an optimal two-stage hydrogen direct injection strategy of the dual-fuel X-type rotor engine is obtained, and the thermal efficiency and emission performance of the rotor engine are improved.

The invention relates to the technical field of boiler powder conveying and discloses a pulverized coal conveying system which comprises a coal mill, a pulverized coal bin and a vibrating screen, the top end of the coal mill is provided with a first coal inlet, a second coal inlet and a pulverized coal outlet, the first coal inlet is used for being communicated with a coal outlet of a coal feeder, the top end of the pulverized coal bin is provided with a feeding port, and the second coal inlet is used for being communicated with a coal outlet of a coal feeder. The pulverized coal bin is provided with a feed port and a second coal inlet, the feed port is communicated with the pulverized coal outlet, the bottom end of the pulverized coal bin is provided with a first discharge port, the bin side wall of the pulverized coal bin is provided with a second discharge port, the second discharge port is communicated with the second coal inlet, and the vibrating screen is obliquely arranged in the pulverized coal bin and located below the feed port. The qualified pulverized coal meeting the particle size requirement is stored in the pulverized coal bin and is subsequently used for providing the qualified pulverized coal meeting the particle size requirement for the boiler for normal combustion of the boiler, the combustion performance of the boiler can be guaranteed, the combustion performance of the boiler can reach the standard, and the combustion reliability of the boiler can be improved.

The invention discloses a copper smelting anode furnace pure oxygen combustor with high combustion efficiency and a smelting method thereof, and relates to the field of pure oxygen combustors, the copper smelting anode furnace pure oxygen combustor comprises a mounting plate, a T-shaped sliding strip is mounted in the middle of the top of the mounting plate, and a pure oxygen combustor body is mounted at the top of the T-shaped sliding strip; the pure oxygen burner body is slidably mounted at the top of the mounting plate through a T-shaped sliding groove formed in the bottom, a control mechanism with high combustion efficiency is arranged on one side of the mounting plate and comprises a mounting frame body, and the two ends of the top in a cavity of the mounting frame body are sleeved with an oxygen box and a combustion-supporting box correspondingly; and sealing plates are placed on the upper portions in cavities of the oxygen box and the combustion-supporting box correspondingly, and material pushing air bags are installed at the bottoms of the two sealing plates correspondingly. The control mechanism is used for controlling the proportion of combustion gas and oxygen in the gas filling process, the perfect use proportion of the combustion gas and the oxygen is achieved, and therefore the combustion efficiency is improved, fuel gas is fully combusted, the combustion effect is guaranteed, and waste of the fuel gas is avoided.

The utility model relates to an elastic ignition assembly for a moxa cone, and belongs to the technical field of moxibustion equipment. Comprising a combustion chamber and further comprises an electric heating rod arranged in the combustion chamber, the electric heating rod is horizontally arranged and extends to the center of the combustion chamber, and a guide part sliding in the vertical direction is arranged between the part, away from the center of the combustion chamber, of the electric heating rod and the bottom face of the combustion chamber. And elastic pieces are arranged between the electric heating rods and the bottom surface of the combustion chamber. By means of the electric heating rod, the problems that in the prior art, ignition is insufficient due to shaking when the electric heating rod is pushed to a designated position, and moxa cakes are dislocated due to shaking in the using process are solved.

The utility model provides a lightweight aggregate calcining device. The lightweight aggregate calcining device comprises a segmented heating furnace body, a waste heat circulating module, a spiral conveyor and a cooling module, the segmented heating furnace body is divided into a preheating section, a main calcining section and a slow cooling section which are connected in sequence through a heat insulation assembly. The preheating section is provided with an electric heating part, the main calcining section is provided with a combustor, and the slow cooling section is provided with a cooling part. The upper portion of the kiln head is communicated with an outlet of the raw material pretreatment device, and a ventilation opening is formed in the lower portion of the kiln head. The kiln tail is connected with an inlet of the screw conveyor, and the screw conveyor is used for conveying the calcined lightweight aggregate to the cooling module for cooling and shaping. The waste heat circulation module comprises a first circulation pipeline arranged between the two heat insulation assemblies and a second circulation pipeline arranged between the slow cooling section and the ventilation opening. According to the utility model, multi-section gradient heating is adopted, so that local over-burning or under-burning is avoided. Heat insulation of all the sections is achieved, high-precision temperature control is achieved, and the stability of the partition temperature and the uniformity of gradient distribution are ensured.

The utility model provides a water-cooled spiral-flow type combustion head. The water-cooled spiral-flow type combustion head comprises a concentration cavity, a middle cylinder is sleeved on the concentration cavity; the middle cylinder is sleeved with an outer cylinder; an inner cylinder is communicated with the end of the concentration cavity in the outer cylinder; a sleeve is arranged on the surface of the inner cylinder inside the outer cylinder; the sleeve is sleeved with an L-shaped annular plate connected with the concentration cavity, the outer cylinder and the middle cylinder. The end of the outer cylinder is plugged by a flange plate; a rotational flow chamber is defined by the outer cylinder, the L-shaped annular plate, the concentration cavity, the sleeve and the flange plate; the rotational flow chamber is communicated with the inner cylinder through a rotational flow pipe; the rotational flow chamber is communicated with the concentration cavity through a second rotational flow plate; a second rotational flow chamber is defined by the outer cylinder, the middle cylinder and the L-shaped annular plate; a rotational flow plate is arranged between the outer cylinder and the middle cylinder; the outer cylinder is communicated with an air duct; partition plates are arranged in the air ducts; the partition plate divides the air duct into a first air duct and a second air duct; the first air duct is communicated with the second rotational flow chamber; the second air duct is communicated with the rotational flow chamber; a filter component is arranged on the air duct; and the water jacket is arranged between the concentration cavity and the middle cylinder, so that the combustion effect is ensured and improved, air is conveniently filtered, and cooling is facilitated.

The invention relates to the technical field of hot-blast stove equipment, and provides a biomass particle low-temperature hot-blast stove which comprises a fuel bin internally provided with a material upper limit and a material lower limit and externally provided with an observation opening, and automatic intermittent discharging is carried out by matching a discharging valve on the left side with changes of output hot air; the discharging port is located at the joint of the lower portion of the fuel bin and the bottom combustion chamber of the hot-blast stove and used for controlling the specific position of fuel entering the combustion chamber. The occupied area is reduced to the maximum extent through the built-in fuel bin, no extra fuel bin is needed, and site requirements of different customers are met; a valve type blanking control mode is adopted, so that fuel accumulation is prevented, combustion is more sufficient, the combustion time is prolonged, and the utilization rate is increased; in addition, combustion products generated by combustion of wood particles or rice hull particles and the like can be effectively removed from the combustion chamber through the chain row type ash discharge structure; and finally, vulnerable parts in a high-temperature area of the exchanger are small in size and easy to assemble and disassemble, consumables are effectively reduced, and the maintenance cost is saved.