478results about "Blast-producing apparatus" patented technology

The invention discloses a pellet fan fault diagnosis method, and aims to solve the problems of low efficiency and insufficient accuracy caused by the fact that traditional fan fault diagnosis depends on manual inspection and experience judgment. The method comprises the following steps: firstly collecting fan operation parameters to form a data set, after data cleaning and normalization processing, carrying out data enhancement by adopting random sampling and Gaussian noise addition, carrying out feature extraction by utilizing a ConvNeXt network, dividing the data set, calculating a fault category feature prototype vector, and predicting a result through distance measurement and classification decision. An L2 regular term is added in a prototype network model loss function, model parameters are adjusted through back propagation, the model is deployed after performance evaluation of a test set is stable, preprocessing and enhancing steps are repeated on real-time data, and if a prediction result is not consistent or new data exist, the model is retrained. According to the method, the diagnosis accuracy and efficiency are improved through multi-technology cooperation, the over-fitting of the model is effectively prevented, the fault feature capturing capability is improved, and the advantages of function perfection and technical perspectiveness are shown.

The invention discloses an air preheating biomass boiler, belongs to the technical field of boilers, and aims to solve the problems of low combustion efficiency, insufficient flue gas waste heat utilization and particulate matter emission of a traditional biomass boiler. Function optimization is achieved through a main body structure composed of a furnace body, a charging barrel and a rotating pipe, a double-spiral-disc heat exchange assembly is arranged in the charging barrel, biomass fuel is preheated through boiler exhaust smoke waste heat, meanwhile, smoke is discharged through exhaust holes after being distributed through spiral disc gas storage cavities, and unburned particles are filtered by a biomass layer and carried to a hearth to be subjected to secondary combustion; an air inlet cavity is formed in the rotating pipe, and air is preheated through the fixed pipe and the first connecting pipe and then input into the hearth. The exhaust assembly adopts a sliding rod and sealing block matched structure, and a convex block mechanism driven by a rotating pipe drives the sealing block to periodically move, so that gas in the charging barrel is intermittently exhausted through a double-layer filter screen. According to the boiler, the heat efficiency is improved through a smoke-air two-way preheating and particulate matter secondary combustion mechanism, and the biomass preheating, air heating and emission treatment process is optimized.

The invention discloses a gas cooker which comprises a combustor and an ejector, the combustor is provided with a premixing cavity, the premixing cavity is communicated with external gas supply through the ejector, a fire cover is arranged on the premixing cavity in a covering mode, the gas cooker is characterized by further comprising an energy gathering disc, a mounting opening is formed in the middle of the energy gathering disc, and the energy gathering disc is provided with a gas inlet and a gas outlet. The combustor is arranged at the position of the mounting opening in a penetrating mode, and a heat insulation cavity and a preheating cavity are sequentially defined by the energy gathering disc from top to bottom; the air outlet end of the air blower is communicated with the air inlet end of the preheating cavity; the nozzle seat is arranged on the ejector, a gas distribution channel is limited in the nozzle, one end of the gas distribution channel is communicated with the gas outlet end of the preheating cavity, and the other end of the gas distribution channel is communicated with the ejector. The energy-saving stove is simple in structure, heat emitted downwards can be fully utilized, and meanwhile the energy efficiency of the stove is effectively improved.

The invention relates to the technical field of vertical incinerators, in particular to a tower type rotary material distribution and concave-convex combined hearth system which comprises a furnace body, a furnace cover, a feeding hopper and a rotary material distribution mechanism, the rotary material distribution mechanism comprises a support, a gear motor, a driving shaft, a bearing set and a material scattering and crushing cone, and materials to be incinerated enter the furnace body through a material inlet; after being guided by the feeding hopper, the materials fall on the upper surface of the material spraying and crushing cone, the speed reducing motor is started, the material spraying and crushing cone is driven to rotate through the driving shaft, so that the materials are subjected to centrifugal movement on the material spraying and crushing cone, and the materials are crushed and scattered after sequentially passing through the first crushing assembly, the second crushing assembly and the third crushing assembly; the materials are scattered at the combustion section of the furnace body, so that the thickness distribution of a material layer is more uniform, incineration is facilitated, the phenomenon that the material layer is burnt through or smoldering occurs due to uneven thickness is prevented, and the incineration treatment effect on the materials is improved.

The application relates to a direct-flow combustor and swirl combustor cooperative combustion device and method, and belongs to the technical field of tangential circle boiler combustion technology. In order to solve the problems of poor stable combustion effect of a coal power unit only relying on pulverized coal combustion at 20%-30% rated load, reduced denitration efficiency during low-load operation, and unstable combustion caused by coal quality deviating from the design value, the application relies on the direct-flow primary air and direct-flow secondary air of a direct-flow combustor, the stable combustion cavity of a self-help stable combustion combustor, and swirl inner secondary air, so that a center backflow area is formed in the center of a swirl combustor, as a stable ignition heat source, high-concentration pulverized coal is heated, a flame formed by the self-help stable combustion combustor is ignited, a direct-flow pulverized coal combustor primary air powder flame is ignited, external flame combustion-supporting technologies such as micro-oil or plasma are not used, and the stable combustion effect of the coal power unit only relying on pulverized coal combustion at 20%-30% rated load is realized. The application is mainly used for improving the stable combustion effect of a boiler during work.

The utility model discloses a biomass gas combustion system capable of accurately controlling combustion. The system comprises a biomass gas burner, a biomass gas pipeline connected with the burner, an air blower, an air supply pipeline connected with the air blower and the burner, a tar collecting device in a hearth of the biomass boiler, an oxygen sensor arranged on a smoke exhaust pipeline of the boiler, a controller based on a PLC (Programmable Logic Controller) system, and an air blower frequency converter. Gas component, flow, temperature and pressure measuring devices are arranged on the biomass gas pipeline, and flow and temperature measuring devices are arranged on the air supply pipeline. The controller calculates the oxygen amount needed by biomass gas combustion and the oxygen amount provided by the air blower according to data fed back by the measuring device, and controls the air blower frequency converter to adjust the air amount of the air blower under correction of data fed back by the oxygen sensor on the boiler smoke exhaust pipeline, so that combustion is accurately controlled under the condition of partial load of the boiler, and the combustion efficiency is improved. The combustion efficiency is improved, and the pollutant emission is reduced.

The invention discloses a biomass gas staged combustion system and a control method, the system comprises a staged combustor, a gas induced draft fan and an air blower, the gas induced draft fan is connected with the staged combustor through a gas main pipeline, a first-stage gas branch pipeline and a second-stage gas branch pipeline, the first-stage gas branch pipeline and the second-stage gas branch pipeline are connected in parallel, and the air blower is connected with the staged combustor. A first-stage fuel gas electric control valve is mounted on the first-stage fuel gas branch pipeline, and a second-stage fuel gas electric control valve is mounted on the second-stage fuel gas branch pipeline; the air blower is connected with the grading combustor through an air main pipeline, a first-stage air branch pipeline and a second-stage air branch pipeline, the first-stage air branch pipeline and the second-stage air branch pipeline are connected in parallel, and a first-stage air electric control valve is installed on the first-stage air branch pipeline; and a second-stage air electric control valve is mounted on the second-stage air branch pipeline. According to the invention, high-efficiency combustion and low-nitrogen emission are realized in a relatively wide load range.

The invention provides an energy-heat conversion device for recycling industrial hydrogen-containing byproduct gas, and belongs to the technical field of combustors. The device comprises a hydrogen supply branch, an air supply branch and an energy-heat conversion device, hydrogen of the hydrogen supply branch comes from industrial by-product gas containing high-proportion hydrogen, the industrial by-product gas rich in hydrogen and air are pressurized through a compressor and then enter the energy-heat conversion device, the energy-heat conversion device comprises an air inlet pipe, an air outlet pipe and an air outlet pipe, the front portion of the nozzle body is communicated with an air supply branch, the front portion of the hydrogen inlet pipe is communicated with a hydrogen supply branch, gas supplied by the two branches is directly jetted into the combustion chamber through the nozzle body to organize coaxial diffusion combustion, and generated heat can be used for supplying heat or driving a small turbine to do work and the like. The energy-heat conversion device designed by the invention can realize the energy reutilization of industrial hydrogen-containing byproduct gas, and avoids serious energy waste caused by direct discharge of industrial waste gas.

This invention relates to a high-efficiency co-combustion device and method for a direct-flow burner and a swirl burner, within the field of tangential boiler combustion technology. To address the problem of tangential boilers failing to operate stably at 15% or lower rated loads, and the issues of nozzle overheating and burnout due to low primary air velocity in the direct-flow burner, as well as pulverized coal blockage in the pipes, this application utilizes a co-combustion method combining a direct-flow burner and a swirl burner. By introducing a system to increase the air velocity and temperature of the direct-flow burner and a supplementary air system for the swirl burner, the direct-flow primary air velocity is increased, thereby enhancing the direct-flow primary air ejection capacity. This allows for adjustment of the shape and size of the central recirculation zone and prevents nozzle overheating and burnout due to low air velocity in the duct. Simultaneously, increasing the temperature of the direct-flow primary air and the self-regulating combustion burner's primary air increases the pulverized coal temperature at the boiler inlet, strengthening initial ignition and burnout of the pulverized coal. This application is primarily intended to improve the stable combustion effect of boilers operating below 15% of rated power.

The utility model provides a thermal power plant boiler induced draft fan outlet structure, which relates to the technical field of thermal power plant boilers, and comprises an air outlet pipe, the two sides of the interior of the air outlet pipe are both provided with insertion blocks, the inner walls of the two insertion blocks are both provided with screw grooves, the center of the top end of the air outlet pipe is provided with an opening, a clamping block is arranged in the opening, and the air outlet pipe is provided with an air outlet. And a connecting column is rotationally connected into the clamping block. Through the arrangement of the mounting plates and the bolts, the insertion blocks can be mounted and dismounted at any time, due to the arrangement of the screw grooves in the insertion blocks, the insertion blocks are in butt joint with external devices, when different devices need to be in butt joint, only different insertion blocks need to be replaced, and therefore the screw grooves of different sizes are replaced; the two clamping columns are driven by the connecting block to be separated from the clamping holes and retracted into the inner cavity, at the moment, a user can directly move the clamping block upwards to drive the adjusting plate to move out of the air outlet pipe, the air outlet pipe is convenient to clean and maintain, and the practicability is higher.

The invention relates to the technical field of incineration equipment, in particular to a vertical furnace rotary vibration deslagging device which comprises a furnace body and a slag breaking mechanism. The slag breaking mechanism comprises a material screening cone, two groups of flexible supporting assemblies, a fixed crushing tooth, a movable crushing tooth, a combustion pagoda, a power assembly, a material screening cone axial supporting bearing, a material screening cone circumferential positioning bearing, two vibration motors, a heat radiation cover, a furnace bridge, a first fan, a first pipeline and a ventilation pipe; the material screening cone is arranged on the furnace body through a material screening cone axial supporting bearing and a material screening cone circumferential positioning bearing, the material screening cone is rotationally connected with the furnace body through a sealing ring, and the material screening cone is provided with a plurality of arc-shaped openings. In this way, the technical problem that in the prior art, a slag breaking device adopted by a vertical furnace is poor in waste slag breaking effect after waste incineration is solved.

The utility model provides a thermal runaway flue gas treatment device which mainly solves the problem that potential safety hazards exist after thermal runaway flue gas generated by thermal runaway of an existing battery is exhausted. The thermal runaway flue gas treatment device comprises a combustion barrel, an ignition assembly, a supercharging device and a flow dividing device, a combustion cavity for combusting thermal runaway flue gas is formed in the combustion barrel, and meanwhile, a plurality of first air holes communicated with the combustion cavity are formed in the combustion barrel; the ignition assembly is used for carrying out ignition treatment on thermal runaway flue gas in the combustion cavity; the pressurizing device is arranged in the combustion cylinder and used for pressurizing the thermal runaway flue gas entering the combustion cavity to form jet-flow-shaped gas, so that flames generated during combustion of the thermal runaway flue gas are thin and long columnar flames; the flow dividing device is connected to the inlet end of the supercharging device, and when the thermal runaway flue gas pressure at the inlet end of the supercharging device exceeds a threshold value, the flow dividing device conducts pressure relief and flow dividing on the thermal runaway flue gas at the inlet end of the supercharging device so that the thermal runaway flue gas can be continuously and stably combusted in the combustion cavity.

The application relates to the technical field of flue gas waste heat recovery, and discloses a rotary kiln flue gas low-temperature waste heat recovery device, which comprises a primary recovery chamber, a secondary recovery chamber and a water storage tank, a flue gas inlet pipe is fixedly installed at the left end of the outer wall of the primary recovery chamber, a flue gas connecting pipe one is fixedly installed at the right side of the upper end of the outer wall of the primary recovery chamber, the rear end of the outer wall of the flue gas connecting pipe one is fixedly connected with the front end of the outer wall of the secondary recovery chamber, the temperature of the heat-conducting aluminum sheet one directly contacting the outer wall of the S-shaped flue pipe is increased, the hot end of the thermoelectric sheet can have a constant high temperature, the heat-conducting aluminum sheet two contacting the inner wall of the water pipe one can take away the heat at the heat-conducting aluminum sheet two under the action of the water flowing in the water pipe one, and the cold end is formed, so that a temperature difference is formed between the hot end and the cold end of the thermoelectric sheet, the thermoelectric sheet can generate electricity by utilizing the temperature difference between the high and low temperatures, and the heat energy in the flue gas can be converted into electric energy.

The utility model is applicable to the technical field of biomass boilers, and discloses a biomass boiler air distribution device which is characterized in that a rotating pipe is vertically and rotatably mounted in the middle of the top of a boiler body through a sealing bearing, support frames are vertically and fixedly mounted on two sides of the top of the boiler body, and a fixed sleeve is fixedly mounted on the surface of the top of each support frame; a conveying pipe is fixedly installed between the inner sides of the two fixing sleeves in a transverse penetrating mode, the top end of the side edge of the conveying pipe fixedly communicates with an air feeding pipe, a driving mechanism is arranged in the conveying pipe, and a transmission mechanism is arranged in the rotating pipe. According to the technical scheme, air can be normally conveyed into the rotating pipe and the exhaust pipe through the connecting straight pipe and the rotating joint, and external air is uniformly conveyed to different positions in the furnace body by combining with the synchronous rotating exhaust groove; and air is conveyed to different positions in the furnace body, so that the contact degree of comburent in the furnace body and oxygen is increased, and the combustion rate of the comburent in the furnace body is increased.

The embodiment of the invention provides a boiler over-fire air adjusting device and method, and the device comprises an over-fire air bellow which is arranged at an inlet of a flue in a hearth of a combustion boiler, and an even number of over-fire air nozzles, partition plates and flow adjusting parts which are arranged at air inlets of the over-fire air nozzles are arranged in the over-fire air bellow; the carbon monoxide concentration detection equipment is arranged at an outlet of the flue in the hearth; the heat exchanger is arranged upwards along the flow direction of the flue gas in the hearth and is arranged between the inlet and the outlet of the flue; the temperature detection equipment is arranged on the outer wall of the heat exchanger; the control device is electrically connected with the carbon monoxide concentration detection equipment, the temperature detection equipment and the flow adjusting part and is used for controlling the flow adjusting part according to the comparison between the actual carbon monoxide concentration value detected by the carbon monoxide concentration detection equipment and the preset carbon monoxide concentration value; or the control device controls the flow adjusting piece to adjust the air supply amount of the over fire air nozzle according to the comparison between the actual wall temperature value detected by the temperature detection equipment and the preset wall temperature value.

The utility model discloses a fuel steam boiler, which belongs to the field of steam boilers, and comprises a boiler barrel, and a combustion chamber, a reversal chamber, a first smoke tube assembly, a smoke box and a second smoke tube assembly which are arranged in the boiler barrel, and a feed port and a smoke outlet are formed on the boiler barrel; one side of the reversal chamber is communicated with the first smoke pipe assembly, the other end of the first smoke pipe assembly is communicated with the smoke box, the other end of the smoke box is connected with the second smoke pipe assembly, and the other end of the second smoke pipe assembly is communicated with the smoke outlet. According to the fuel steam boiler, the secondary air inlets, the air blower and the induced draft fan are arranged on the left side and the right side of the hearth of the boiler barrel, so that combustibles can be fully burnt out, heat efficiency is improved, and emission of pollutants is reduced; and meanwhile, through the three-return-stroke design, a downstream combustion structure is formed, and the combustion efficiency and the heat transfer efficiency are greatly improved.

The utility model discloses an environment-friendly garbage treatment furnace capable of achieving sufficient incineration, relates to the technical field of garbage incineration treatment, solves the problems that an existing device is insufficient in combustion and poor in purification effect, and adopts the following scheme that a feeding port is formed in the top face of a combustion box. Through the arrangement of an ignition box, an electric telescopic rod and an air blower, the ignition box and an ignition plate ignite and burn garbage on a storage plate, the air blower injects external air into a combustion box during combustion, it is guaranteed that oxygen in the combustion box is sufficient, the electric telescopic rod can continuously pound the garbage up and down, and the garbage combustion sufficiency is guaranteed; meanwhile, through the arrangement of a first purification box, a second purification box and an activated carbon adsorption barrel, water in the first purification box and the second purification box can absorb dust, sulfur dioxide and other harmful gases in the gas respectively, finally, the activated carbon adsorption barrel absorbs carbon dioxide in the gas, and the purification effect is good.

The utility model discloses a large mixed combustion cooking stove, and belongs to the technical field of cooking stoves. The large cooking stove mainly comprises a large cooking stove body, a stove opening is formed in the surface of the large cooking stove body, and a storage groove is formed in the large cooking stove body in a penetrating mode; the air blowing assembly is mounted in the storage groove; the clamping and fixing assembly comprises a square hollow frame, the square hollow frame is installed in the storage groove, and a breathable grid plate is buckled to the storage groove; the mounting seat is mounted on the large cooking range body, and a boss is mounted on the mounting seat; the screw rod is in threaded connection with the boss; the clamping plate is connected to one end of the screw through a bearing, and a limiting groove matched with the clamping plate in width is formed in the installation base. According to the large mixed combustion cooking range, the grip is held to rotate so as to drive the screw rod to rotate, so that the clamping plate gradually gets close to the upper end face of the breathable grid plate, the breathable grid plate is fixed, and the breathable grid plate can be cleaned conveniently.

The invention discloses a combustor and a gas stove. The combustor comprises a furnace end, a fire cover, an ignition needle, an induction needle and a fluid machine, the furnace end is provided with a first containing cavity, a second containing cavity and a third containing cavity, the fire cover covers the furnace end and comprises an outer ring fire cover, an inner ring fire cover and a gas conveying channel, the outer ring fire cover is provided with outer ring fire holes communicated with the first containing cavity, the inner ring fire cover is provided with inner ring fire holes communicated with the third containing cavity, and the gas conveying channel is communicated with the second containing cavity. The outer ring fire cover surrounds the inner ring fire cover, a clamping cavity is formed between the outer ring fire cover and the inner ring fire cover, the gas conveying channel is communicated with the second containing cavity, the tip end of the ignition needle is arranged in the clamping cavity and is not higher than the gas outlet end of the gas conveying channel, the tip end of the induction needle is arranged in the clamping cavity and is not higher than the gas outlet end of the gas conveying channel, and the fluid machine is suitable for providing blast air for the second containing cavity. The blast air can flow out of the air conveying channel to be supplemented to the flame roots of the inner ring fire holes and / or the outer ring fire holes, and due to the fact that the air outlet end of the air conveying channel is higher, interference of the blast air exhausted from the air conveying channel to ignition and fire sensing is reduced.

The application belongs to the technical field of waste liquid treatment, and particularly relates to a high-phosphorus organic waste liquid incineration treatment furnace, which comprises a collecting box, a top of the collecting box is connected with an incineration furnace, a first ash plate is fixedly arranged in the incineration furnace, an igniter is arranged on the first ash plate, a smoke exhaust pipe is arranged on the top of the incineration furnace in communication, and an annular spray pipe is arranged on the outer wall of the incineration furnace in communication. Through integrated design, efficient incineration treatment of waste liquid is realized, uniform mixing of waste liquid and combustible material is ensured, the combustion efficiency is improved, the impurity treatment is more convenient through the mixing treatment of impurities and water, the cleaning of the ash plate is automatically realized, and the environmental protection and efficiency of waste liquid treatment are improved as a whole.

The application relates to the garbage incineration technical field and discloses a garbage incineration heat power generation device, which comprises a garbage incinerator body, an incinerator installed in the garbage incinerator body and an oxygen charger installed outside the garbage incinerator body. A stirring assembly is installed in the garbage incinerator body, a conveying assembly is fixed to the outside of the garbage incinerator body, and a partition assembly is fixed to the outside of the conveying assembly. The garbage incineration heat power generation device can realize automatic feeding, thereby reducing the contact time of workers with garbage, improving the safety of the workers, extruding the garbage during feeding, separating the dry and wet garbage, conveying the garbage into the garbage incinerator body for incineration under the action of the partition assembly, stirring the internal garbage, dispersing the garbage, increasing the gaps between the garbage and the oxygen, and improving the incineration efficiency of the internal garbage.

A high-power surface combustion system suitable for treating high-concentration organic waste gas, comprising a gridded surface burner assembly, an organic waste gas valve group, a combustion-supporting gas valve group, an air distribution system, an igniter module, an exhaust module, and a waste heat recovery module; wherein the gridded surface burner assembly is an integrated burner composed of a segmented metal fiber head and a corresponding segmented premixing chamber; the organic waste gas valve group, the combustion-supporting gas valve group, and the air distribution system are respectively connected to the gas mixing chamber of the surface burner, and the organic waste gas, combustion-supporting gas, and air are mixed and transported to the surface burner for incineration, and the igniter module is arranged in a certain area above the surface burner; the exhaust module is configured on the periphery of the gridded surface burner assembly, and a waste heat recovery module is arranged inside the exhaust module, ultimately achieving standard emission of organic waste gas.

Solid fuel grill (1) for grilling edible products (20) with solid fuels, in particular with charcoal (21), comprising: a combustion chamber (2) with a fuel grate (3) for storing solid fuel, a grill grate (4) arranged above the combustion chamber (2) for storing products to be grilled, an air supply opening leading into the combustion chamber (2) below the fuel grate (3), a shaft (5) connected to the combustion chamber (2) with: - a wall (6), - a first shaft opening (7) leading to the air supply opening of the combustion chamber (2), - a second shaft opening (8) designed to supply fresh air into the shaft (5), - and an ash area (9) arranged below for collecting already burnt solids in the fall area of the fuel grate (3), a fan (11) for blowing fresh air into the shaft (5), characterized in that at least one of the ventilation elements comprising the fan (11), a power storage cell (13) driving the fan (11) and control and / or regulating electronics (14) controlling and / or regulating the fan (11), is arranged in the region of the shaft (5) in such a way that it is thermally decoupled from components of the solid fuel grill (1) which become hot and the shaft (5) is designed to have multiple flues at least over a partial section, with a first flue directing the accumulating ash (22) to an ash box (19) and a second draft is intended exclusively for air supply.

The utility model discloses a ventilation system device of incineration equipment. The ventilation system device comprises a shell, an air supply device, a feeding device and a smoke exhaust device. The air supply device comprises a fan, a main air supply pipe, a main air supply pipe supporting pipe, a branch air supply pipe and a combustion layer air supply pipe; the feeding device comprises a feeding opening formed in the top of the shell and a feeding sliding plate arranged in the shell below the feeding opening; the smoke exhaust device comprises a smoke exhaust pipeline, the smoke exhaust pipeline comprises two branches, one branch is arranged to be a smoke outlet connected with the atmosphere, and the other branch is connected with a furnace smoke pipe and used for being communicated with the fire-retardant flow guide cabinet. The device aims at ensuring smooth air circulation in the incinerator and timely discharging harmful gas, meanwhile, the incineration efficiency and the energy conversion rate are improved, and the problems that in the field of existing incineration equipment, garbage and other substances are not sufficiently combusted, colloidal agglomerates are formed and the like are solved.

The present invention relates to the field of heating equipment, specifically an energy-saving semi-coke heating furnace, which includes a furnace body, a feeding mechanism, a discharging mechanism, a wind hood mechanism, a air supply assembly and an energy storage tank. An installation plate is horizontally welded on the inner wall of the furnace body. A partition plate is welded at the center position inside the furnace body directly above the installation plate. A discharging mechanism is installed at the gap between the partition plate and the installation plate. The inner area of the furnace body is divided into a semi-coke feeding area and a semi-coke combustion area by the partition plate. A feeding mechanism for conveying semi-coke is installed in the semi-coke feeding area. A wind hood mechanism is arranged in the semi-coke combustion area. An air supply assembly is installed at the gap between the installation plate and the inner wall of the furnace body. Energy storage tanks are symmetrically installed on both side walls of the furnace body by bolts. A feeding port is opened on the top end face of the furnace body at a relatively high horizontal position, and a furnace port is opened on the top end face of the furnace body at a relatively low horizontal position. The present invention has the characteristics of reducing the explosion rate of semi-coke combustion and increasing the thermal efficiency of semi-coke combustion.

To provide a water heating apparatus capable of effectively cooling a predetermined motor by a simple structure, without using a large-sized special member.SOLUTION: A water heating apparatus WH is equipped with a water heating apparatus body portion A that has a combustion device 8, a fan 1 and a motor M for driving the fan, and an air supply adaptor 4 attached to an upper wall portion 31 of an exterior case 3. The combustion device 8 and the motor M are located in an area near an upper part in the exterior case 3, and in plan view, the combustion device 8 is at least partially located between the air supply adaptor 4 and the fan 1. An air outflow port 42 of the air supply adaptor 4 opens in a generally horizontal direction while avoiding a direction facing the motor M, and air flowing out from the outflow port 42 advances while changing directions by a side wall portion 32c of the exterior case 3 to reach a position of the motor M.SELECTED DRAWING: Figure 1

This invention relates to the field of sludge treatment technology and provides an integrated device for low-heat-loss sludge drying and incineration. The device includes a frame, a drying unit, an incineration unit, a sludge conveying unit, a flue gas conveying unit, and a flue gas treatment unit. The flue gas conveying unit consists of an air intake mechanism and an inlet pipe. The air intake mechanism comprises a blower body, a drive assembly, a control assembly, a hollow main shaft, an annular frame, blower blades, and an adjustment assembly. The air intake mechanism can steplessly adjust the blower body's exhaust and suction air volume, output air pressure, and operating efficiency in real time. Based on real-time changes in the moisture content, feed amount, and organic matter content of the wet sludge, it can quickly adjust the blower body's exhaust and suction air volume, precisely control the heat supply of the annular flue gas heat exchange chamber, and precisely control the flue gas volume of the incineration unit. This stabilizes the optimal combustion condition of the incineration unit under a slightly positive pressure, completely solving the problems of positive pressure flue gas leakage or negative pressure cold air infiltration in the incineration unit, and reducing the fluctuation range of the combustion temperature in the incineration unit.

The utility model relates to the technical field of tail gas treatment, in particular to a tail gas incineration treatment device. Comprising a furnace body, the upper end of the furnace body is fixedly communicated with an exhaust pipe, a gas exhaust assembly is arranged in the furnace body and communicated with a gas pipe, a plurality of igniters are fixed in the gas exhaust assembly, a mixing assembly is fixed in the portion, below the gas exhaust assembly, of the furnace body, and a slag discharging opening is formed in one side of the lower end of the furnace body; a sealing plate is detachably and fixedly connected to the furnace body in a sealed mode, a guide plate is fixed in the furnace body, the end, facing the slag discharging opening, of the guide plate inclines downwards, the end, facing the slag discharging opening, of the guide plate is in smooth transition connection with the lower end of the slag discharging opening, a vibrator is fixed to the lower end of the guide plate, and a window is formed in the side wall, below the guide plate, of the furnace body. The conical piece is used for preliminarily dispersing and guiding tail gas and air, turbulent flow is reduced, and a stable flow field is formed; the spiral blades force the gas to rotate upwards, and the mixing uniformity of the gas flow is remarkably improved by combining the cutting effect of the disturbance rod.

This invention discloses a biomass pellet burner, comprising: a hopper including an inlet and an outlet; a screw feeder including a screw feed pipe, a screw feed rotating component disposed within the screw feed pipe, and a screw feed drive component connected to the screw feed rotating component, the outlet being disposed at a first end of the screw feed pipe; a combustion chamber disposed at a second end of the screw feed pipe; an air supply device including an air supply chamber and an air supply drive component connected to the air supply chamber, the air supply chamber including an air distribution chamber and a combustion chamber air chamber, the air distribution chamber communicating with the screw feed pipe, and the combustion chamber air chamber communicating with the combustion chamber; and an ignition device, a sealing plate disposed between the air distribution chamber and the combustion chamber, the inlet end of the ignition device being located within the air distribution chamber, and the outlet end of the ignition device being located within the combustion chamber. This invention avoids backflow and backfire by balancing the pressure of the screw feed pipe and the combustion chamber.

The present invention discloses a boiler energy-saving shutdown system and method. The system includes a furnace A and a furnace B. The air inlet of the blower of furnace A has two channels, one of which is connected to the inlet flue of the flue gas purification facility of furnace B through the bypass flue of furnace B, and the other is connected to the atmosphere through the inlet air duct of the blower of furnace A; the air inlet of the blower of furnace B has two channels, one of which is connected to the inlet flue of the flue gas purification facility of furnace A through the bypass flue of furnace A, and the other is connected to the atmosphere through the inlet air duct of the blower of furnace B; when one of the boilers is shut down, the exhausted flue gas passes through the other boiler and is dust-removed by another normally operating boiler before being discharged to the outside, thereby solving the problem of substandard flue gas emissions after the boiler is shut down. After the boiler is shut down, the induced draft fan does not operate in the stall zone of the induced draft fan, so surge does not occur, safety is not endangered, and the service life is extended; the hot air entering the shut-down boiler is introduced into another normally operating boiler to participate in combustion, thereby realizing waste heat utilization.