CN113280328A - Efficient electric combustion furnace for collecting coal PM2.5 - Google Patents

Efficient electric combustion furnace for collecting coal PM2.5 Download PDF

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CN113280328A
CN113280328A CN202110598459.6A CN202110598459A CN113280328A CN 113280328 A CN113280328 A CN 113280328A CN 202110598459 A CN202110598459 A CN 202110598459A CN 113280328 A CN113280328 A CN 113280328A
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furnace body
air
furnace
collecting
fixedly connected
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CN113280328B (en
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俞捷
许洁
李克彬
胡斌丽
唐清红
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Zunyi Medical University
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Zunyi Medical University
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B60/00—Combustion apparatus in which the fuel burns essentially without moving
    • F23B60/02—Combustion apparatus in which the fuel burns essentially without moving with combustion air supplied through a grate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B90/00—Combustion methods not related to a particular type of 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
    • F23J15/025—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 filters
    • 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
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L1/00—Passages or apertures for delivering primary air for combustion 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2217/00—Intercepting solids
    • F23J2217/10—Intercepting solids by filters

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

本发明涉及实验设备技术领域，尤其涉及一种收集燃煤PM2.5的高效电燃炉，包括炉体，炉体顶部连通有流速加快通道，流速加快通道顶部连通有排气管，排气管上沿气流流通方向依次设置有冷却管组件、PM2.5检测端、排气滤芯；炉体从上至下依次固定连接有发热丝、托板、进风通道、反热板，炉体侧壁可拆卸连接有加料挡板，加料挡板垂直固定连接有物料存放板，物料存放板为镂空结构，物料存放板位于发热丝上方，进风通道贯穿炉体侧壁；进风通道上设置有促进均匀燃烧的送风结构。本发明能够实现燃煤的高效燃烧，并实现精确测量燃煤PM2.5的目的。

Figure 202110598459

The invention relates to the technical field of experimental equipment, in particular to a high-efficiency electric combustion furnace for collecting coal-fired PM2.5, comprising a furnace body, a flow velocity acceleration channel connected to the top of the furnace body, an exhaust pipe connected to the top of the flow velocity acceleration channel, and the exhaust pipe The cooling pipe assembly, PM2.5 detection end, and exhaust filter element are arranged on the upper part in sequence along the airflow direction; the furnace body is fixedly connected with heating wires, supporting plates, air inlet channels, anti-heating plates from top to bottom, and the side walls of the furnace body are fixedly connected. The feeding baffle is detachably connected, and the feeding baffle is vertically and fixedly connected with a material storage plate. The material storage plate is a hollow structure. The material storage plate is located above the heating wire, and the air inlet channel runs through the side wall of the furnace body. Air supply structure for uniform combustion. The invention can realize the efficient combustion of coal, and achieve the purpose of accurately measuring the PM2.5 of coal.

Figure 202110598459

Description

Efficient electric combustion furnace for collecting coal PM2.5
Technical Field
The invention relates to the technical field of experimental equipment, in particular to a high-efficiency electric combustion furnace for collecting coal PM 2.5.
Background
PM2.5 is mainly formed by the conversion of sulfur and nitrogen oxides, and these gaseous pollutants are often caused by the combustion of fossil fuels (coal, petroleum, etc.) and garbage by humans. Compared with the coarse atmospheric particulates, the generated fine particulates have small particle size, are rich in a large amount of toxic and harmful substances, have long retention time in the atmosphere and long conveying distance, and have larger influence on the human health and the atmospheric environmental quality. Research shows that smaller particles have greater harm to human health, because the smaller the diameter, the deeper the part entering respiratory tract, the 10 μm diameter fine particles which are harmful to human health are usually deposited in the upper respiratory tract, and less than 2 μm can reach the bronchioles and alveoli to directly affect the ventilation function of the lungs, so that the organism is easy to be in an anoxic state.
The existing energy is mainly coal, harmful substances such as smoke dust, sulfur dioxide and carbon monoxide released by the coal in the combustion process can cause diseases such as bronchitis, bronchial asthma, emphysema and lung cancer to people, so that the experimental study on PM2.5 related to the coal is necessary, most of the existing combustion furnaces on the market mainly adopt household heating, and the existing combustion furnaces cannot be suitable for studying PM2.5 in laboratories.
Disclosure of Invention
The invention aims to provide a high-efficiency electric combustion furnace for collecting PM2.5 of fire coal, which aims to solve the problems, realize high-efficiency combustion of the fire coal and realize the aim of accurately measuring the PM2.5 of the fire coal.
In order to achieve the purpose, the invention provides the following scheme:
a high-efficiency electric furnace for collecting coal PM2.5 comprises a furnace body, wherein the top of the furnace body is communicated with a flow speed accelerating channel, the top of the flow speed accelerating channel is communicated with an exhaust pipe, and the exhaust pipe is sequentially provided with a cooling pipe assembly, a PM2.5 detection end and an exhaust filter element along the air flow direction;
the heating wire, the supporting plate, the air inlet channel and the heat reflecting plate are sequentially and fixedly connected with the furnace body from top to bottom, the side wall of the furnace body is detachably connected with a feeding baffle, the feeding baffle is vertically and fixedly connected with a material storage plate, the material storage plate is of a hollow structure and is positioned above the heating wire, and the air inlet channel penetrates through the side wall of the furnace body;
and an air supply structure for promoting uniform combustion is arranged on the air inlet channel.
Preferably, the air supply structure includes a plurality of air shunt tubes of vertical setting, and is a plurality of air shunt tube bottom with inlet air channel stretches into the part intercommunication of furnace body, be provided with the air-blower in the inlet air channel, the air shunt tube with furnace body fixed connection.
Preferably, an air inlet filter element is fixedly connected in the air inlet channel, and the filtering precision of the air inlet filter element is smaller than 1 micrometer.
Preferably, the cooling tube subassembly is including setting up cooling outer tube on the blast pipe, a plurality of shunt tubes of fixedly connected with in the cooling outer tube, cooling outer tube both ends are enclosed construction, and are a plurality of the shunt tubes with the blast pipe intercommunication, cooling outer tube intercommunication has the water tank.
Preferably, the outer side wall of the cooling outer pipe is provided with a water inlet, the water inlet is communicated with the water tank, and the water tank is fixedly sleeved on the outer side of the cooling outer pipe.
Preferably, the flow speed accelerating channel is of a conical structure, the top of the flow speed accelerating channel is communicated with an outlet connector, and one end, far away from the flow speed accelerating channel, of the outlet connector is communicated with the exhaust pipe.
Preferably, the outer side wall of the feeding baffle is fixedly connected with a handle, and the bottom of the furnace body is fixedly connected with a supporting leg.
Preferably, the exhaust filter element has a filtration precision of less than 1 μm.
Preferably, one end of the exhaust pipe, which is far away from the furnace body, is communicated with an exhaust port, the exhaust port is of a horn-shaped structure, and the small end of the exhaust port is communicated with the exhaust pipe.
Preferably, the heat reflecting plate is a high-temperature resistant glass mirror.
The invention has the following technical effects:
according to the invention, the heating and combustion of the coal on the material storage plate are realized through the heating wires, the corresponding heating of the heating wires can be controlled according to the combustion condition of the coal, the flow speed accelerating channel is arranged at the top of the furnace body, the flow speed of the air can be increased, so that the quantity of the air flowing through the coal is increased, the air supply structure is arranged on the air inlet channel, the air is uniformly fed into the coal on the material storage plate by utilizing the air supply structure, the coal is uniformly combusted integrally, and the combustion efficiency is improved.
Through set up the cooling tube subassembly on the blast pipe, because the inner wall temperature ratio of cooling tube subassembly is lower, when the particulate matter was through the cooling tube subassembly, large granule thing adhesion was on the inner wall of cooling tube subassembly, and PM 2.5's tiny particle continues to move ahead, realizes accurate detection through PM2.5 sense terminal.
In addition, the exhaust filter element is arranged on the exhaust pipe, and the discharged waste gas is filtered by the exhaust filter element, so that the pollution to the environment is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the furnace body according to the present invention;
FIG. 3 is a schematic view of a cooling tube assembly according to the present invention;
FIG. 4 is a schematic view of the structure of the material feeding baffle plate and the material storage plate
FIG. 5 is a schematic structural view of a cooling tube assembly according to a second embodiment of the present invention;
FIG. 6 is a schematic view of an exhaust pipe structure according to a second embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a third embodiment of the present invention;
fig. 8 is a schematic cross-sectional view of a shunt according to a fourth embodiment of the present invention.
Wherein, 1, a furnace body; 101. a first fixed fixture block; 2. an air inlet channel; 201. an air shunt tube; 202. a blower; 203. an air inlet filter element; 3. a support leg; 4. the flow speed is accelerated to the channel; 401. a second fixed fixture block; 402. clamping a wrench; 403. a clamping buckle; 5. an outlet fitting; 6. an exhaust pipe; 601. a first variable-diameter protrusion; 7. a cooling tube assembly; 701. a shunt tube; 7011. a second variable-diameter protrusion; 702. cooling the outer tube; 703. a water inlet; 8. a water tank; 9. a PM2.5 detection end; 10. an exhaust filter element; 11. an exhaust port; 12. a material storage plate; 13. a heater; 14. a support plate; 15. a heat-reflecting plate; 16. a feeding baffle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The first embodiment is as follows:
referring to fig. 1-4, the embodiment provides a high-efficiency electric furnace for collecting coal PM2.5, which includes a furnace body 1, a flow speed accelerating passage 4 is communicated with the top of the furnace body 1, an exhaust pipe 6 is communicated with the top of the flow speed accelerating passage 4, and a cooling pipe assembly 7, a PM2.5 detection end 9 and an exhaust filter element 10 are sequentially arranged on the exhaust pipe 6 along an airflow flowing direction;
the furnace body 1 is fixedly connected with a heating wire 13, a supporting plate 14, an air inlet channel 2 and a heat reflecting plate 15 in sequence from top to bottom, the side wall of the furnace body 1 is detachably connected with a feeding baffle 16, the feeding baffle 16 is vertically and fixedly connected with a material storage plate 12, the material storage plate 12 is of a hollow structure, the material storage plate 12 is positioned above the heating wire 13, and the air inlet channel 2 penetrates through the side wall of the furnace body 1;
an air supply structure for promoting uniform combustion is arranged on the air inlet channel 2.
According to the invention, the heating and combustion of the coal on the material storage plate 12 are realized through the heating wire 13, the corresponding heating of the heating wire 13 can be controlled according to the combustion condition of the coal in the process, the flow speed accelerating channel 4 is arranged at the top of the furnace body 1, the flow speed of the air can be increased, and the quantity of the air flowing through the coal is increased, and the air supply structure is arranged on the air inlet channel 2, so that the air is uniformly fed into the coal on the material storage plate 12 by utilizing the air supply structure, the coal is uniformly combusted integrally, and the combustion efficiency is improved.
Through set up cooling tube subassembly 7 on blast pipe 6, because the inner wall temperature ratio of cooling tube subassembly 7 is lower, when the particulate matter through cooling tube subassembly 7, large granule thing adhesion is on cooling tube subassembly 7's inner wall, and PM 2.5's tiny particle continues to move ahead, realizes accurate detection through PM2.5 sense terminal 9.
In addition, the exhaust filter element 10 is arranged on the exhaust pipe 6, and exhausted waste gas is filtered by the exhaust filter element 10, so that the pollution to the environment is reduced.
Further optimize the scheme, the air supply structure includes a plurality of air shunt tubes 201 of vertical setting, and a plurality of air shunt tubes 201 bottoms and inlet air duct 2 stretch into the part intercommunication of furnace body 1, are provided with air-blower 202 in the inlet air duct 2, air shunt tubes 201 and furnace body 1 fixed connection.
Because set up exhaust filter core 10 on the blast pipe 6, can lead to appearing holding the breath phenomenon in the blast pipe 6, waste gas can not discharge smoothly through the action of thermal power, through setting up air-blower 202, can realize sending into the air in the furnace body 1, strengthen the internal pressure in the furnace body 1 for the fire coal has the air current to pass through in the combustion process, realizes abundant burning, because the pressure increase in the furnace body 1 can make waste gas discharge from blast pipe 6 smoothly.
In a further optimized scheme, an air inlet filter element 203 is fixedly connected in the air inlet channel 2, and the filtering precision of the air inlet filter element 203 is smaller than 1 micrometer.
Through set up air intake filter core 203 in inlet air duct 2, can carry out preliminary filtration with the air that gets into in furnace body 1, prevent that too much PM2.5 granule from getting into, influence the testing result.
Further optimize the scheme, cooling tube subassembly 7 is including setting up the cooling outer tube 702 on blast pipe 6, and a plurality of shunt tubes 701 of fixedly connected with in the cooling outer tube 702, and the cooling outer tube 702 both ends are enclosed construction, and a plurality of shunt tubes 701 and blast pipe 6 intercommunication, cooling outer tube 702 intercommunication have water tank 8.
Further optimization scheme, cooling outer tube 702 lateral wall has seted up water inlet 703, and water inlet 703 and water tank 8 intercommunication, water tank 8 are fixed to be cup jointed in the cooling outer tube 702 outside.
Fill up 8 intussuseptions of water tank with the coolant liquid, the coolant liquid gets into in the space of cooling outer tube 702 and shunt tubes 701 through water inlet 703, realize the cooling to the shunt tubes 701 waste gas of flowing through, adopt a plurality of shunt tubes 701's integrated configuration, the area of contact of waste gas with the pipe wall has been increased, thereby make more large granule thing stop on shunt tubes 701's inner wall, the disengagement volume of PM2.5 granule has been strengthened, thereby the result that makes PM2.5 sense terminal 9 detect is more accurate.
Further optimize the scheme, the flow rate accelerates passageway 4 and is the toper structure, and the flow rate accelerates 4 top intercommunications of passageway have exit joint 5, and exit joint 5 keeps away from the one end and the blast pipe 6 intercommunication of flow rate accelerating passageway 4.
The flow speed accelerating channel 4 is of a conical structure, when hot air flows through the top of the flow speed accelerating channel 4, the air flow is gathered, the air flow speed is increased, the pressure is reduced, the air fluidity inside the furnace body 1 is enhanced, and the combustion performance of the furnace body 1 is enhanced.
Further optimize the scheme, the lateral wall fixedly connected with handle of the feeding baffle 16, the bottom fixedly connected with landing leg 3 of furnace body 1.
In a further optimized scheme, the filtering precision of the exhaust filter element 10 is less than 1 mu m.
Further optimization scheme, the one end intercommunication that furnace body 1 was kept away from to blast pipe 6 has gas vent 11, and gas vent 11 is the horn type structure, and the tip and the blast pipe 6 intercommunication of gas vent 11. The flared structure of the exhaust port 11 facilitates rapid discharge of filtered gas.
In a further optimized scheme, the heat reflecting plate 15 is a high-temperature resistant glass mirror. Through setting up anti-hot plate 15, reduce the inside thermal giving off of furnace body 1, the heat is through anti-hot plate 15's reflection, and all towards the coal-fired direction, makes the burning effect of coal-fired better.
Example two:
referring to fig. 5-6, the efficient electric furnace of the embodiment is different from the first embodiment only in that the inner wall of the exhaust pipe 6 is provided with a first reducing protrusion 601, the inner wall of the shunt pipe 701 is provided with a plurality of second reducing protrusions 7011, the exhaust pipe 6 is divided into two opposite conical table structures by the first reducing protrusion 601, the inner wall of the shunt pipe 701 is divided into a plurality of conical table structures by the second reducing protrusions 7011, and according to the laval structure principle, when an air flow passes through the first reducing protrusion 601 and the second reducing protrusion 7011, a compression and expansion process is generated, which can increase the flow speed of the air flow passing through the exhaust pipe 6 and the shunt pipe 701, so that the air inlet and outlet circulation of the air flow in the whole electric furnace is enhanced.
Example three:
refer to fig. 7, the high-efficient electric furnace of this embodiment is only in with the difference of embodiment one, furnace body 1, the velocity of flow accelerates passageway 4 can dismantle the connection, the first fixed fixture block 101 of 1 lateral wall fixedly connected with of furnace body, the velocity of flow accelerates the fixed fixture block 401 of 4 lateral walls fixedly connected with second of passageway, the fixed fixture block 401 top of second rotates and is connected with joint spanner 402, joint spanner 402 middle part rotates and is connected with joint knot 403, joint knot 403 keeps away from one side of joint spanner 402 and the contact setting in the fixed fixture block 401 bottom of second, the velocity of flow accelerates passageway 4 to make for high temperature resistant transparent material, the burning condition to in the furnace body 1 is conveniently observed, accelerate passageway 4 and furnace body 1 with the velocity of flow and set up to detachable construction, conveniently clear up in the furnace body 1 after the experiment.
Example four:
referring to fig. 8, the high efficiency electric furnace of this embodiment is different from the first embodiment only in that the cross section of the sidewall of the shunt pipe 701 is a wave-shaped structure, the direction of the grooves of the wave-shaped structure is parallel to the axis of the shunt pipe 701, and the sidewall of the shunt pipe 701 is set to be the wave-shaped structure, so that the area of the sidewall of the shunt pipe 701 can be increased, the contact area between particulate matters and the shunt pipe 701 is increased, the contact area between exhaust gas and the pipe wall is increased, more large particulate matters stay on the inner wall of the shunt pipe 701 compared with the first embodiment, and the separation amount of PM2.5 particles is increased.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.

Claims (10)

1. The utility model provides a collect fire coal PM 2.5's high-efficient electric furnace which characterized in that: the device comprises a furnace body (1), wherein the top of the furnace body (1) is communicated with a flow speed accelerating channel (4), the top of the flow speed accelerating channel (4) is communicated with an exhaust pipe (6), and the exhaust pipe (6) is sequentially provided with a cooling pipe assembly (7), a PM2.5 detection end (9) and an exhaust filter element (10) along the air flow flowing direction;
the heating wire heating furnace is characterized in that the furnace body (1) is sequentially and fixedly connected with a heating wire (13), a supporting plate (14), an air inlet channel (2) and a heat reflecting plate (15) from top to bottom, a feeding baffle (16) is detachably connected to the side wall of the furnace body (1), the feeding baffle (16) is vertically and fixedly connected with a material storage plate (12), the material storage plate (12) is of a hollow structure, the material storage plate (12) is located above the heating wire (13), and the air inlet channel (2) penetrates through the side wall of the furnace body (1);
and an air supply structure for promoting uniform combustion is arranged on the air inlet channel (2).
2. The high-efficiency electric combustion furnace for collecting the PM2.5 of the fire coal according to claim 1, characterized in that: air supply structure includes a plurality of air shunt tubes (201) of vertical setting, and is a plurality of air shunt tubes (201) bottom with inlet air duct (2) stretch into the part intercommunication of furnace body (1), be provided with air-blower (202) in inlet air duct (2), air shunt tubes (201) with furnace body (1) fixed connection.
3. The high-efficiency electric combustion furnace for collecting the PM2.5 of the fire coal according to claim 1, characterized in that: the air inlet channel (2) is internally and fixedly connected with an air inlet filter element (203), and the filtering precision of the air inlet filter element (203) is smaller than 1 mu m.
4. The high-efficiency electric combustion furnace for collecting the PM2.5 of the fire coal according to claim 1, characterized in that: cooling tube subassembly (7) are including setting up cooling outer tube (702) on blast pipe (6), a plurality of shunt tubes (701) of fixedly connected with in cooling outer tube (702), cooling outer tube (702) both ends are enclosed construction, and are a plurality of shunt tubes (701) with blast pipe (6) intercommunication, cooling outer tube (702) intercommunication has water tank (8).
5. The high-efficiency electric furnace for collecting the PM2.5 of the fire coal according to claim 4, characterized in that: the outer side wall of the cooling outer pipe (702) is provided with a water inlet (703), the water inlet (703) is communicated with the water tank (8), and the water tank (8) is fixedly sleeved on the outer side of the cooling outer pipe (702).
6. The high-efficiency electric combustion furnace for collecting the PM2.5 of the fire coal according to claim 1, characterized in that: the flow velocity accelerating channel (4) is of a conical structure, the top of the flow velocity accelerating channel (4) is communicated with an outlet connector (5), and one end, far away from the flow velocity accelerating channel (4), of the outlet connector (5) is communicated with the exhaust pipe (6).
7. The high-efficiency electric combustion furnace for collecting the PM2.5 of the fire coal according to claim 1, characterized in that: the outer side wall of the feeding baffle (16) is fixedly connected with a handle, and the bottom of the furnace body (1) is fixedly connected with supporting legs (3).
8. The high-efficiency electric combustion furnace for collecting the PM2.5 of the fire coal according to claim 1, characterized in that: the filtering precision of the exhaust filter element (10) is less than 1 mu m.
9. The high-efficiency electric combustion furnace for collecting the PM2.5 of the fire coal according to claim 1, characterized in that: the exhaust pipe (6) is far away from one end of the furnace body (1) is communicated with an exhaust port (11), the exhaust port (11) is of a horn-shaped structure, and the small end of the exhaust port (11) is communicated with the exhaust pipe (6).
10. The high-efficiency electric combustion furnace for collecting the PM2.5 of the fire coal according to claim 1, characterized in that: the heat reflecting plate (15) is a high-temperature resistant glass mirror.
CN202110598459.6A 2021-05-31 2021-05-31 A high-efficiency electric furnace that collects coal-fired PM2.5 Active CN113280328B (en)

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