CN108534165B - Feeding device and boiler combustion system with same - Google Patents
Feeding device and boiler combustion system with same Download PDFInfo
- Publication number
- CN108534165B CN108534165B CN201810260797.7A CN201810260797A CN108534165B CN 108534165 B CN108534165 B CN 108534165B CN 201810260797 A CN201810260797 A CN 201810260797A CN 108534165 B CN108534165 B CN 108534165B
- Authority
- CN
- China
- Prior art keywords
- fuel
- pipe
- feeding
- air
- feeding pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K1/00—Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
- F23J15/027—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using cyclone separators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
- F23K3/02—Pneumatic feeding arrangements, i.e. by air blast
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
The invention discloses a combustion device, in particular to a feeding device and a boiler combustion system with the same. Set up the intermediate layer pipe on the air supply pipe, and set up the bleeder vent on the conveying pipe, can enter into the conveying pipe with air supply duct's air through the bleeder vent, and there is fuel in the centre in the conveying pipe, and then let the air that gets into from the bleeder vent form the air bed on the surface of conveying pipe, and then can reduce the friction of fuel and the inner wall of conveying pipe at the in-process of pay-off, reduce the storage of the fuel of the inner wall of conveying pipe, thereby it is more convenient to let the fuel transport of conveying pipe, and then let its pay-off stable, reach the purpose that convenient control boiler combustion state improves fuel combustion efficiency.
Description
Technical Field
The present invention relates to a combustion apparatus, and more particularly, to a feeding device and a boiler combustion system having the same.
Background
A boiler is a device for generating steam by combustion, and is an indispensable device in some plants requiring the use of steam as well as thermal power plants. In the steam production process, the combustion condition of the boiler has a great influence on the steam generation and the fuel utilization rate.
Chinese patent publication No. CN104315505A discloses a circulating fluidized bed boiler, which comprises a furnace chamber, a material returning device, and a combustion chamber, a cyclone separator and a tail flue sequentially arranged from front to back. The hearth is a fully suspended water-cooled wall, air hoods are uniformly arranged on an air distribution plate of the water-cooled wall, and a high-temperature superheater is suspended above the tail flue; the low-temperature superheater, the economizer and the air preheater are support structures; the boiler adopts the all-steel frame structure, and the stokehold is provided with four rows of stands backward altogether, lets whole combustion system operate steadily. However, in general boilers, fuel (coal) needs to be fed into a boiler combustion position through a pipeline for combustion, the condition that the coal is fed into the boiler through the pipeline can affect the overall combustion condition of the boiler, and at present, in the actual production process, the inside of the pipeline is easily blocked by the coal fed into the pipeline, so that the fuel feeding is not timely, and the boiler combustion efficiency is not high. And thus improvements thereof are required.
Disclosure of Invention
In view of the above-mentioned problems, it is an object of the present invention to provide a feeding device, in which air holes are formed in a feeding pipe to form an air layer, so that the feeding pipe is not easily blocked during feeding, feeding is relatively uniform, and combustion efficiency of a boiler is high.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a feedway, includes the conveying pipe that is used for carrying fuel, for the feeding mechanism of conveying pipe feed and for the air supply line of conveying pipe supply air, be provided with a plurality ofly on the conveying pipe and be used for propelling movement fuel bleeder vent, and the cover is equipped with the intermediate layer pipe on the air supply pipe, air supply line and intermediate layer pipe intercommunication.
Through above-mentioned technical scheme, feeding mechanism carries the fuel to the conveying pipe, lets the conveying pipe can carry the fuel, through the setting of air supply line, lets the air can enter into the conveying pipe, lets it mix with the fuel, and then when the burning, the air is more even with the mixture of fuel to area of contact is big, and the burning is more abundant. Set up the intermediate layer pipe on the air supply pipe, and set up the bleeder vent on the conveying pipe, can enter into the conveying pipe with air supply duct's air through the bleeder vent, and there is fuel in the centre in the conveying pipe, and then let the air that gets into from the bleeder vent form the air bed on the surface of conveying pipe, and then can reduce the friction of fuel and the inner wall of conveying pipe at the in-process of pay-off, reduce the storage of the fuel of the inner wall of conveying pipe, thereby it is more convenient to let the fuel transport of conveying pipe, and then let its pay-off stable, reach the purpose that convenient control boiler combustion state improves fuel combustion efficiency.
The invention is further configured to: the air holes are obliquely arranged towards the fuel conveying direction and used for pushing the fuel to push towards the conveying direction.
Through above-mentioned technical scheme, the bleeder vent inclines towards the direction that fuel carried, and it can promote fuel and promote to the boiler direction, makes fuel carry more convenient.
The invention is further configured to: the fuel feeding device is characterized in that a stirring rod and a power part used for driving the stirring rod to rotate are installed in the feeding pipe, the stirring rod is rotatably connected with the feeding pipe, and a plurality of thin rods used for uniformly stirring fuel are arranged on the stirring rod.
Through above-mentioned technical scheme, the setting of puddler is used for mixxing the inside fuel of conveying pipe, lets fuel and air intensive mixing, and the setting of slender pole can let its stirring to fuel more abundant.
The invention is further configured to: the thin rods are arranged on the surface of the stirring rod in a spiral structure.
Through above-mentioned technical scheme, when helical structure's the mode of arranging let the puddler rotate, its pin becomes the power that promotes, and then lets fuel transport more convenient to a certain extent.
The invention is further configured to: the feeding mechanism comprises a crushing machine for crushing fuel and a screw conveyor for conveying the fuel to the feeding pipe, a fuel conveying control mechanism is arranged between the screw conveyor and the feeding pipe, the fuel conveying control mechanism comprises a casing for connecting the screw conveyor and the feeding pipe, an impeller arranged in the casing and used for broadcasting the fuel and a driving piece for driving the impeller to rotate, and the impeller rotates to uniformly supply the fuel conveyed by the screw conveyor to the feeding pipe.
Through above-mentioned technical scheme, the crushed aggregates machine can smash fuel, carries it through screw conveyer, and the pivoted speed of impeller through in the casing can carry fuel at the uniform velocity, when all need increaseing fuel and carrying, driving piece driven speed is accelerated, and it is faster to let the impeller rotate, and then lets the volume of its pay-off increase.
The invention is further configured to: and a material storage hopper is arranged between the machine shell and the screw conveyor, and the machine shell is arranged at the discharging position of the material storage hopper.
Through above-mentioned technical scheme, the setting of storage hopper can save the fuel of handling, lets fuel transport control mechanism not receive the influence of screw conveyer transported fuel speed.
The invention is further configured to: the shell is arranged on the outer surfaces of the storage hopper and the shell, the shell is communicated with the storage hopper and the shell to form a heating space, and the heating space is communicated with the gas supply pipeline.
Through above-mentioned technical scheme, the setting up of shell lets it form the heating space, when the gas supply line provides for high-temperature gas, can let it heat the fuel, lets its temperature before the burning reach the requirement, and then lets it more abundant at the in-process of burning.
The invention is further configured to: be connected with the cool air pipe that is used for providing the cold air on the air supply line, install first control valve and second control valve on cool air pipe and the air supply line respectively, install temperature sensor in the pay-off pipe, temperature sensor is connected with the controller, the controller is connected the aperture that is used for controlling the aperture of first control valve and the aperture of second control valve with first control valve and second control valve respectively.
Through above-mentioned technical scheme, through the setting of air supply line and cooling duct, can let the air temperature of the final transport of air supply line can adjust, let it can not be too high to let it be in normal level to the heating of fuel, through the aperture of temperature sensor control first control valve and second control valve, let its temperature can reach certain degree, and then let its heating temperature relatively stable.
Another object of the present invention is to provide a boiler combustion system, which uses the above feeding device to make the feeding more uniform, and further make the boiler combustion more stable.
A boiler combustion system comprises a boiler, an ignition device, a tail gas treatment device and the feeding device.
Through above-mentioned technical scheme, feedway can effectually deliver to the boiler with fuel in the burning, ignites the burning through ignition, handles tail gas through tail gas processing apparatus at last and forms complete combustion system.
The invention is further configured to: the tail gas treatment device comprises a tail gas pipe and a heat exchanger arranged on the tail gas pipe, and the gas supply pipeline is connected with the heat exchanger.
Through above-mentioned technical scheme, heat the air supply line through the heat exchanger on the tail gas pipe, let the air of air supply line not need extra heating device to heat.
In conclusion, the invention has the following beneficial effects:
(1) the air layer is formed on the feeding pipe through the air holes, so that the fuel conveying is not hindered, and the fuel conveying is more convenient;
(2) by arranging the fuel conveying control mechanism, the fuel conveying control mechanism is combined with a structure that the conveying of the feeding pipe is more smooth, so that the fuel conveying control mechanism can control the fuel conveying more accurately, the control of the boiler is more accurate, and the combustion state can be more controllable, thereby reducing the combustion accidents;
(3) through the arrangement of tail gas return gas, combustible gas existing in tail gas formed by fuel combustion can be further combusted.
Drawings
FIG. 1 is an overall structural view of the present embodiment;
FIG. 2a is an enlarged view at A in FIG. 1;
FIG. 2B is an enlarged view at B in FIG. 1;
FIG. 3 is a structural view of a feeding mechanism;
FIG. 4 is a structural view of a fuel delivery control mechanism;
FIG. 5 is a view showing the structure of a feed pipe;
FIG. 6 is a block diagram of the temperature control of the gas supply duct;
FIG. 7 is a view showing the construction of an ash discharger;
fig. 8 is a view showing the structure of a heat exchanger.
Reference numerals: 1. a boiler; 2. a feeding device; 21. a feed pipe; 211. a sandwich tube; 212. air holes are formed; 213. a stirring rod; 214. a thin rod; 215. a power member; 22. a gas supply duct; 23. a feeding mechanism; 231. a crusher; 232. a screw conveyor; 233. a jacket layer; 24. a fuel delivery control mechanism; 241. a housing; 242. an impeller; 243. a drive member; 25. a storage hopper; 251. an air outlet pipe; 26. a housing; 271. a temperature sensor; 272. a first control valve; 273. a second control valve; 274. a controller; 28. a cold air pipe; 3. an ignition device; 4. a tail gas treatment device; 41. a tail gas pipe; 42. a cyclone separator; 43. a heat exchanger; 431. mounting the cylinder; 432. a heat exchange plate; 44. a dust remover; 45. a treatment tower; 46. an ash discharger; 461. a temporary storage cavity; 462. a continuous ash discharge mechanism; 463. ash discharging shell; 464. ash discharging conveyer belts; 465. a conveyor belt; 466. a driving member; 467. a sheet body; 47. and (4) an air return pipe.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
A boiler combustion system is mainly used for thermal power generation, steam generated by combustion of fuel is used for driving a steam turbine to generate power, and the fuel used is coal generally. As shown in fig. 1, the system comprises a boiler 1 mainly used for combustion and steam generation, a feeding device 2 for supplying fuel to the boiler 1, a tail gas treatment device 4 for treating tail gas formed after combustion and an ignition device 3 for igniting the boiler 1, wherein the fuel is conveyed into the boiler 1 through the feeding device 2, then the fuel can be continuously combusted in a state that the feeding device 2 continuously supplies the fuel after being ignited by the ignition device 3, impurities in polluted air formed by combustion are removed through the tail gas treatment device 4 and finally discharged, and a steam turbine is pushed by generated steam in the combustion process of the boiler 1, so that power generation can be realized. Meanwhile, the steam generated by the boiler 1 can also be delivered to a factory for processing and use.
As shown in fig. 1 and 3, the feeding device 2 includes a feeding pipe 21 for conveying fuel, an air supply pipeline 22 connected to the feeding pipe 21, and a feeding mechanism 23 for feeding the feeding pipe 21, wherein the air supply pipeline 22 is communicated with the feeding pipe 21 to mix the fuel and the air in the feeding pipe 21, so that the subsequent combustion is convenient. In order to facilitate the fuel transportation in the pipeline, as shown in fig. 5, a sandwich pipe 211 is sleeved on the feeding pipe 21, and the sandwich pipe 211 is connected with the air supply pipeline 22. Because the gas that gas supply pipeline 22 supplied with is generally preheating gas, it can preheat feed pipe 21, makes feed pipe 21 temperature relatively more stable to temperature regulation can both make the temperature that the fuel got into reach quick accurate regulation through the temperature of adjusting the air feed.
During the fuel feeding process, there are many times that the fuel adheres to the inner wall of the feeding pipe 21 due to the adhesion of the fuel portion, and thus there is resistance in feeding the fuel. In order to solve the technical problem, as shown in fig. 5, a plurality of air holes 212 are formed in the feeding pipe 21, air in the interlayer pipe 211 enters the feeding pipe 21 through the air holes 212, an air layer can be formed on the inner wall of the feeding pipe 21, so that fuel is rapidly conveyed, and the air layer has less contact with the inner wall of the feeding pipe 21, so that the air layer is not easily adhered to the inner wall of the feeding pipe 21, the conveying is more stable, and the feeding amount is controlled more conveniently. In order to facilitate that the air holes 212 do not affect the feeding, two air supply pipelines may be provided, wherein one air supply pipeline 22 supplies air to the feeding pipe 21, the other air supply pipeline 22 supplies air to the air holes 212, and the air holes 212 are arranged in an inclined manner, and the inclined angle is the direction towards the feeding pipe 21 for conveying the fuel.
In the combustion process of fuel, the ratio of the air to the air is an important factor for whether the combustion reaches the expected requirement and controlling the combustion speed, and the mixing degree of the air and the fuel is also an important factor influencing the whole combustion efficiency. In order to make the degree of combustion uniform and controllable, air and fuel are mixed as uniformly as possible, and therefore, as shown in fig. 4 and 5, a stirring rod 213 is provided in the feed pipe 21, and the fuel is dispersed by the stirring rod 213 while being improved, and the air and fuel can be mixed more uniformly. Wherein the stirring rod 213 is driven by a power member 215, and the power member 215 is generally formed by a motor. Be provided with a plurality of slender poles 214 on puddler 213, slender pole 214 is the heliciform and distributes on puddler 213, and slender pole 214 and the vertical setting of puddler 213, at puddler 213 pivoted in-process, it can let a plurality of slender poles 214 stir, form the screw power, can carry fuel through this screw power, in addition, can be through the stirring of slender pole 214 itself, let fuel become loose, thereby it is more even with the air contact, thereby let the mixture of fuel and air more even, and then when subsequent control burning, only need control fuel's supply speed can, and the burning is more stable, control is more accurate.
As shown in fig. 3, the feeding mechanism 23 includes a crusher 231 and a screw conveyor 232, and the fuel is crushed by the crusher 231 and then is conveyed into the feeding pipe 21 by the screw conveyor 232. In order to facilitate the baking of the fuel and enable moisture in the fuel to be separated, a sleeve layer 233 is arranged on the outer surface of the screw conveyor 232, air with a certain temperature is input into the sleeve layer 233 to heat the surface of the screw conveyor 232, the screw conveyor 232 can be heated when the fuel is conveyed, and then the moisture in the fuel can be evaporated, so that the fuel is dried.
In order to facilitate the control of the fuel, a fuel conveying control mechanism 24 is disposed between the screw conveyor 232 and the feeding pipe 21, as shown in fig. 3 and 4, the mechanism includes a housing 241 for communicating the screw conveyor 232 and the feeding pipe 21, an impeller 242 installed in the housing 241 for broadcasting the fuel, and a driving member 243 for driving the impeller 242 to rotate, wherein the driving member 243 is formed by a driving motor, the rotation speed of the impeller 242 is controlled by controlling the rotation speed of the driving motor, and further, in case the conveying of the screw conveyor 232 is sufficient, the fuel conveying is relatively stable and can be conveniently controlled. In order to buffer the fuel supply between the screw conveyor 232 and the fuel feed control mechanism 24, a storage hopper 25 is provided therebetween, the fuel feed control mechanism 24 is provided at the bottom of the storage hopper 25, and the housing 241 communicates with the inside of the storage hopper 25 to feed the fuel. The screw conveyor 232 guides the conveyed fuel into the storage hopper 25. The outer shells 26 are sleeved on the outer surfaces of the storage hopper 25 and the shell 241, a space for air to pass through is formed, the interlayer pipe 211 is communicated with the space, and therefore the fuel can keep a relatively stable temperature in the whole conveying process. An outlet pipe 251 is arranged at the top of the storage hopper 25, and the outlet pipe 251 can lead out the water vapor in the fuel at the heating evaporation position.
Referring to fig. 1 and 6, temperature sensors 271 for detecting the internal temperature are provided in the feed pipe 21, the interlayer pipe 211, and the jacket layer 233, and a temperature sensor 271 for detecting the temperature of the temporary storage fuel is installed in the storage hopper 25. Be connected with cold air pipe 28 at air supply duct 22, mix through cold air pipe 28 and the hot-air in the air supply duct 22, and then let it can form the air of required temperature, wherein be provided with first control valve 272 and second control valve 273 on air supply duct 22 and cold air pipe 28 respectively, and first control valve 272 and second control valve 273 all adopt the solenoid valve to constitute, adjust through the aperture with first control valve 272 and second control valve 273, thereby adjust the proportion of cold air and hot-air, reach the purpose of control temperature. The first control valve 272 and the second control valve 273 are provided with a controller 274 for control, the controller 274 may be formed by a CPU, a PLC, or a processor, and the controller 274 receives temperature signals from the temperature sensors 271 provided at four locations as described above (mainly based on the temperature of the fuel in the feed pipe 21), and controls the opening degree of the first control valve 272 and the opening degree of the second control valve 273.
As shown in fig. 5, the interlayer tube 211 and the feeding tube 21 and the interlayer tube 211 and the housing 26 are hermetically connected by bolts, so that when the air holes 212 are blocked, the interlayer tube 211 can be loosened, and the air holes 212 can be dredged by iron wires or other rod-shaped structures.
After the fuel is sent into boiler 1, ignite the fuel through ignition 3, burn, treat the tail gas that the burning produced through tail gas processing apparatus 4 at last, because the tail gas temperature after the burning is higher, discharge and can let the temperature of environment rise on the one hand, on the other hand also is the waste to the energy. Therefore, the temperature of the exhaust gas is reduced by exchanging heat between the gas supply pipeline 22 and the exhaust gas treatment device 4.
As shown in fig. 1, the exhaust gas treatment device 4 includes an exhaust gas pipe 41 connected to the boiler 1, and is capable of discharging exhaust gas from the boiler 1. The offgas duct 41 is provided with a cyclone 42, a heat exchanger 43, a dust separator 44, and a processing tower 45. The tail gas enters the cyclone 42 from the tail gas pipe 41 to remove impurities in the tail gas, and then solid impurities in the subsequent tail gas are less. After the tail gas passes through the cyclone separator 42, the tail gas is further conveyed, at the moment, heat exchange is carried out through the heat exchanger 43, the temperature of the tail gas is reduced, dust removal and other treatment are carried out after heat exchange, and the tail gas can reach the emission standard.
As shown in fig. 1, an ash discharger 46 is disposed at the bottom of the cyclone separator 42 to discharge the dust separated by the cyclone separator 42, and since a relatively large pressure exists inside the cyclone separator 42 many times, a pipeline is generally used to guide the dust to be discharged during the ash discharge process, and the dust at the tail end is sprayed due to the internal pressure, so that the dust in the air is increased significantly, and the environmental pollution is caused. In order to solve the technical problem, referring to fig. 7, a temporary storage cavity 461 and a continuous ash discharging mechanism 462 are arranged in the ash discharger 46, the continuous ash discharging mechanism 462 comprises an ash discharging shell 463 communicated with the temporary storage cavity 461 and an ash discharging conveyer belt 464 installed in the ash discharging shell 463, the ash discharging conveyer belt 464 comprises a conveyer belt 465 and a driving part 466 used for driving the conveyer belt 465 to drive, the driving part 466 generally adopts a driving motor to form, the conveyer belt 465 is provided with a plurality of sheet bodies 467, the sheet bodies 467 are in contact with the ash discharging shell 463, so that the temporary storage cavity 461 can be subjected to a certain sealing effect, because the temporary storage cavity 461 is communicated with the ash discharging shell 463, dust can enter the ash discharging shell 463, the sheet bodies 467 are further driven by the conveyer belt 465 to convey dust in the ash discharging shell 463, and further achieve continuous ash discharging, and cannot be influenced by internal pressure.
As shown in fig. 8, the heat exchanger 43 includes a plurality of heat exchange plates 432 and an installation cylinder 431 for installing the heat exchange plates 432, the heat exchange plates 432 are arranged in a hollow structure, a gap is provided between the heat exchange plates 432 and the heat exchange plates 432, and two sides of the installation cylinder 431 are respectively butted with the exhaust pipe 41, so that the heat exchange plates 432 can be placed in the exhaust pipe 41, and thus the exhaust gas passes through the gap, and the exhaust gas exchanges heat with the air passing through the hollow structure of the heat exchange plates 432, and the air can be heated. The supply air duct 22 is in communication with the heat exchange plates 432 of the heat exchanger 43. One side of the heat exchanger 43 is connected with the air supply pipeline 22, and the other side is provided with a fan for supplying air.
The tail gas in the tail gas pipe 41 is divided into two paths after heat exchange, referring to fig. 1, and with reference to fig. 2a and 2b, one path enters the feeding pipe 21 through the tail gas return pipe 47, so that the return pipe 47 is communicated with the feeding pipe 21. And the air return pipe 47 and the air supply pipeline 22 are wound with each other, so that the tail gas can be further cooled, and the air in the air supply pipeline 22 is heated. Because the tail gas is generated in the combustion process, trace combustible gas exists in the tail gas, and after the tail gas is mixed with fuel, some harmful gas can be converted into further combustible gas, so that the emission of pollution gas can be reduced.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (7)
1. The feeding device is characterized by comprising a feeding pipe (21) for conveying fuel, a feeding mechanism (23) for feeding the feeding pipe (21) and an air supply pipeline (22) for supplying air to the feeding pipe (21), wherein the feeding pipe (21) is provided with a plurality of air holes (212) for pushing the fuel, an interlayer pipe (211) is sleeved on the air supply pipeline, and the air supply pipeline (22) is communicated with the interlayer pipe (211);
a stirring rod (213) and a power part (215) for driving the stirring rod (213) to rotate are installed in the feeding pipe (21), the stirring rod (213) is rotatably connected with the feeding pipe (21), and a plurality of thin rods (214) for uniformly stirring fuel are arranged on the stirring rod (213);
the thin rods (214) are arranged on the surface of the stirring rod (213) in a spiral structure;
the feeding mechanism (23) comprises a crusher (231) for crushing fuel and a screw conveyor (232) for conveying the fuel to the feeding pipe (21), a fuel conveying control mechanism (24) is arranged between the screw conveyor (232) and the feeding pipe (21), the fuel conveying control mechanism (24) comprises a shell (241) for connecting the screw conveyor (232) and the feeding pipe (21), an impeller (242) installed in the shell (241) and used for broadcasting the fuel and a driving piece (243) used for driving the impeller (242) to rotate, and the impeller (242) rotates to uniformly supply the fuel conveyed by the screw conveyor (232) to the feeding pipe (21).
2. The feeding device according to claim 1, characterized in that the air holes (212) are arranged obliquely towards the fuel conveying direction for pushing the fuel towards its conveying direction.
3. The feeding device according to claim 1, characterized in that a storage hopper (25) is arranged between the housing (241) and the screw conveyor (232), and the housing (241) is mounted in a discharge position of the storage hopper (25).
4. The feeder device according to claim 3, characterized in that the storage hopper (25) and the casing (241) are externally provided with a housing (26), the communication between the housing (26) and the storage hopper (25) and between the housing (26) and the casing (241) forms a heating space, and the heating space is communicated with the air supply pipeline (22).
5. The feeding device according to claim 4, characterized in that a cold air pipe (28) for providing cold air is connected to the air supply duct (22), a first control valve (272) and a second control valve (273) are respectively installed on the cold air pipe (28) and the air supply duct (22), a temperature sensor (271) is installed in the feeding pipe (21), the temperature sensor (271) is connected with a controller (274), and the controller (274) is respectively connected with the first control valve (272) and the second control valve (273) for controlling the opening degree of the first control valve (272) and the opening degree of the second control valve (273).
6. A boiler combustion system, characterized in that it comprises a boiler (1), an ignition device (3), a tail gas treatment device (4) and a feeding device (2) according to any of claims 1-5.
7. Boiler combustion system according to claim 6, characterized in that the tail gas treatment device (4) comprises a tail gas pipe (41) and a heat exchanger (43) mounted on the tail gas pipe (41), the gas supply duct (22) being connected to the heat exchanger (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810260797.7A CN108534165B (en) | 2018-03-27 | 2018-03-27 | Feeding device and boiler combustion system with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810260797.7A CN108534165B (en) | 2018-03-27 | 2018-03-27 | Feeding device and boiler combustion system with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108534165A CN108534165A (en) | 2018-09-14 |
| CN108534165B true CN108534165B (en) | 2020-08-28 |
Family
ID=63483768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810260797.7A Active CN108534165B (en) | 2018-03-27 | 2018-03-27 | Feeding device and boiler combustion system with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108534165B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110143408B (en) * | 2019-06-20 | 2024-05-31 | 江苏徐工工程机械研究院有限公司 | Throwing device and material throwing machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102159889A (en) * | 2008-06-05 | 2011-08-17 | 库尔特·希姆尔弗洛恩德波茵特纳 | Method and device for feeding conveyable materials to reaction furnaces |
| CN104832942A (en) * | 2015-05-11 | 2015-08-12 | 浙江尚鼎工业炉有限公司 | Feeding mechanism and biomass burner applying same |
| CN106439800A (en) * | 2016-10-28 | 2017-02-22 | 杭州红山热电有限公司 | Boiler combustion returning device and boiler combustion system with same |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100850528B1 (en) * | 2007-05-04 | 2008-08-05 | 류지원 | A fuel injection device of sand circulation fluid bed boiler for rdf(rpf) combustion form waste material |
| US8926231B2 (en) * | 2009-09-29 | 2015-01-06 | General Electric Company | Solid fuel transporting system for a gasifier |
| CN204693380U (en) * | 2015-05-09 | 2015-10-07 | 湖北环太生物质设备有限公司 | A kind of biomass combustion heating jeting furnace |
| CN205424907U (en) * | 2015-11-17 | 2016-08-03 | 东莞市百大新能源股份有限公司 | Living beings granule combustor of bottom feed |
| CN106402845B (en) * | 2016-10-28 | 2018-12-21 | 杭州红山热电有限公司 | Boiler combustion system |
| CN107420904B (en) * | 2016-12-26 | 2019-01-25 | 浙江春晖环保能源股份有限公司 | Garbage burning system |
-
2018
- 2018-03-27 CN CN201810260797.7A patent/CN108534165B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102159889A (en) * | 2008-06-05 | 2011-08-17 | 库尔特·希姆尔弗洛恩德波茵特纳 | Method and device for feeding conveyable materials to reaction furnaces |
| CN104832942A (en) * | 2015-05-11 | 2015-08-12 | 浙江尚鼎工业炉有限公司 | Feeding mechanism and biomass burner applying same |
| CN106439800A (en) * | 2016-10-28 | 2017-02-22 | 杭州红山热电有限公司 | Boiler combustion returning device and boiler combustion system with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108534165A (en) | 2018-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20180163962A1 (en) | Bio-Fuel Furnace | |
| CZ278704B6 (en) | Process and apparatus for combined combustion of coal | |
| JP5358794B2 (en) | Boiler system | |
| CN206269118U (en) | Biological particles combustion apparatus | |
| JP2014190620A (en) | Heat source system and power generation system using organic waste | |
| CN108534165B (en) | Feeding device and boiler combustion system with same | |
| CN103043936A (en) | Expanded perlite ore preheating furnace and working method thereof | |
| JP2009287863A (en) | Heat treatment apparatus | |
| CN101139093A (en) | Method and device of fluidized carbonization moving bed activating of chemical legal wood activated charcoal | |
| CN108758595B (en) | Boiler combustion system | |
| CA2815325C (en) | Method and system for delivering heat through gasification of biomass | |
| CN210197696U (en) | Split hot-blast stove | |
| CN201497307U (en) | Modularized combination energy-saving baking equipment | |
| CN110107888A (en) | A kind of uniform distribution biomass fuel combustion equipment and its combustion method | |
| CN209944302U (en) | Uniform-distribution biomass fuel combustion equipment | |
| CN106048183B (en) | A kind of biomass electricity Dual-energy source heat-treatment furnace | |
| CN110068143B (en) | Split type hot-blast furnace | |
| CN110107891B (en) | Method for improving material circulation of boiler furnace of paper mill | |
| CN108844055B (en) | Boiler | |
| CN107216893A (en) | Energy-conserving and environment-protective biomass stove | |
| KR101937619B1 (en) | The waste medium-pellet boiler of a caterpillar type | |
| CN206918992U (en) | A kind of biomass boiler | |
| CN211625328U (en) | Biomass particle fireplace capable of feeding materials in double spiral mode | |
| CN110617622A (en) | Biomass three-combustion-chamber all-steel energy-saving hot blast stove | |
| CN105466008B (en) | Multi fuel heat pipe indirect-heating hot air stove |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |