阅读说明：本技术 一种微波等离子焚烧炉 (Microwave plasma incinerator ) 是由 曾启林 曾伟哲 熊显名 张文涛 杜浩 于 2021-07-14 设计创作，主要内容包括：本发明提供的是一种微波等离子焚烧炉,其特征是：由主炉部分和副炉部分组成,所述主炉部分包含主炉膛、传送带、焚烧物投放口、焚烧物投放口闸门、废渣排出口、废渣排出口闸门、焚烧观测窗、主炉支撑架、主炉排烟口和主微波等离子体炬,所述副炉部分包含副炉膛、副炉支撑架、观测窗、排烟口、副炉入烟口、副微波等离子体炬和排烟管,所述主微波等离子体炬与副微波等离子体炬结构相同,另外,所述主炉部分与副炉部分设有导烟管连接。本发明用于垃圾处理领域,适应了当前绿色发展的时代要求,解决了以前处理垃圾的二次污染问题,改进了目前已有技术的缺点。(The invention provides a microwave plasma incinerator, which is characterized in that: constitute by main furnace part and auxiliary furnace part, the main furnace part contains main furnace, conveyer belt, burns the thing and puts in the mouth, burns the thing and puts in a mouthful gate, waste residue discharge port gate, burns observation window, main furnace support frame, main furnace exhaust port and main microwave plasma torch, the auxiliary furnace part contains auxiliary furnace, auxiliary furnace support frame, observation window, exhaust port, auxiliary furnace income mouth, vice microwave plasma torch and the pipe of discharging fume, main microwave plasma torch is the same with vice microwave plasma torch structure, in addition, the main furnace part is equipped with the auxiliary furnace part and leads the tobacco pipe and is connected. The invention is used in the field of garbage disposal, meets the current requirement of the era of green development, solves the problem of secondary pollution of the prior garbage disposal, and improves the defects of the prior art.)

1. A microwave plasma incinerator, comprising: the microwave plasma incinerator comprises a main furnace and an auxiliary furnace; the microwave plasma incinerator main furnace comprises a main hearth; a conveyor belt is arranged below the main hearth of the microwave plasma incinerator; a main microwave plasma torch is arranged on the left side of the main hearth of the microwave plasma incinerator; the main hearth of the microwave plasma incinerator is provided with an incinerated object feeding opening; the main hearth of the microwave plasma incinerator is provided with a waste residue discharge port; an incineration observation window is arranged on the right side of the main hearth of the microwave plasma incinerator; the microwave plasma incinerator comprises an auxiliary furnace; the microwave plasma incinerator auxiliary furnace comprises an auxiliary hearth; an auxiliary microwave plasma torch is arranged below the auxiliary hearth of the microwave plasma incinerator; a smoke exhaust pipe is arranged on the left side of the auxiliary hearth of the microwave plasma incinerator; and an observation window is arranged on the right side of the auxiliary hearth of the microwave plasma incinerator.

2. A microwave plasma incinerator according to claim 1 wherein: the main microwave plasma torch comprises a microwave source, a tuner, a waveguide, a plasma torch, an air supply port and a piston; the microwave source comprises a direct current power supply and a magnetron.

3. A microwave plasma incinerator according to claims 1 and 2 wherein: the structure of the secondary microwave plasma torch is the same as that of the main microwave plasma torch.

4. A microwave plasma incinerator according to claim 1 wherein: the bottom of the main furnace is provided with a support frame; and a smoke outlet is formed in the top of the main furnace.

5. A microwave plasma incinerator according to claim 1 wherein: the bottom of the auxiliary furnace is provided with a support frame; and a smoke inlet is formed in the top of the auxiliary furnace.

6. A microwave plasma incinerator according to claims 4 and 5 wherein: the smoke outlet of the main furnace and the smoke inlet of the auxiliary furnace are connected by a smoke guide pipe.

7. A microwave plasma incinerator according to claim 1 wherein: the incinerated object feeding port is provided with a gate; the gate of the incinerated substance feeding port is electrically driven; the gate of the throwing port is provided with an independent switch.

8. A microwave plasma incinerator according to claim 1 wherein: the waste residue discharge port is provided with a gate; the waste residue discharge port gate is electrically driven, and the discharge port gate is provided with an independent switch.

9. A microwave plasma incinerator as claimed in claims 1, 7 and 8 wherein: the conveyor belt can move forwards or backwards and is controlled electrically and intelligently; the electric intelligent control is linked with the feeding port gate and the discharge port gate through a PLC.

(I) technical field

The invention belongs to the field of waste incineration, and particularly relates to a microwave plasma incinerator.

(II) background of the invention

At present, the state enters a new development stage, carries out a new development concept and constructs a new development pattern, and the ' environmental protection ' Chinese character ' is developed in all aspects of production and various industries and living, so that the sustainable development becomes a common consensus in the society. Meanwhile, as the living standard of people is continuously improved, the quantity of generated garbage is also continuously increased, and the attention of each world to the garbage disposal problem is higher and higher.

At present, garbage treatment methods are various, the two methods with the largest proportion are landfill and incineration, and the proportion sum of other methods is greatly different from the proportion sum of the two methods. As is well known, China is a large population country, and the land use area per capita is small, so that the method for vigorously popularizing landfill for garbage treatment is not sensible. Landfill not only occupies land resources, but also has great harm to the environment, so that the great development of the waste incineration technology is very important in the present. Data show that the proportion of waste incineration disposal methods is increasing, and the waste incineration disposal methods are expected to become the most important waste disposal methods in the future. Therefore, the development of waste incineration technology, the continuous improvement of incineration capability and the continuous reduction of secondary pollution are all important problems of waste incineration.

In a plasma garbage incinerator and an incineration system thereof disclosed in CN 108253422 a, a heat source adopted by the invention is a plasma torch, an anode and a cathode are arranged in a tube body of the plasma torch, when the plasma torch works, the cathode and the anode are utilized to generate electric arcs, the electric arcs cut a gas jet area to obtain plasma, and then the plasma incinerates garbage. In a cleaning and incinerating apparatus for domestic garbage in villages and towns disclosed in CN 111412474 a, the heat source used in the present invention is a plasma flame generator, which comprises a discharge electrode, a conductive tube and a power supply device, wherein the power supply provides a high-voltage high-frequency power supply to cause the electrode to generate an arc in the conductive tube, and then the air holes of the conductive tube provide air flow to form plasma flame flow to incinerate garbage. In the two inventions, the electrode is used to generate the arc action airflow when the plasma is generated, so that the problems of electrode etching or byproduct deposition and the like in the discharge area are difficult to avoid.

Disclosure of the invention

In summary, the present invention is directed to solving the problems of the related art, and provides a microwave plasma incinerator for incinerating garbage.

According to the present invention, there is provided a microwave plasma incinerator comprising: the microwave plasma incinerator comprises a main furnace and an auxiliary furnace, the main furnace of the microwave plasma incinerator comprises a hearth, a conveyor belt is arranged below the main hearth of the microwave plasma incinerator, a main microwave plasma torch is arranged on the left side of the main hearth of the microwave plasma incinerator, an incinerating object feeding port is arranged on the main hearth of the microwave plasma incinerator, a waste residue discharge port is arranged on the main hearth of the microwave plasma incinerator, an incineration observation window is arranged on the right side of the main hearth of the microwave plasma incinerator, the auxiliary furnace of the microwave plasma incinerator comprises an auxiliary furnace, an auxiliary microwave plasma torch is arranged below the auxiliary hearth of the microwave plasma incinerator, a smoke exhaust pipe is arranged on the left side of the auxiliary hearth of the microwave plasma incinerator, an observation window is arranged on the right side of the auxiliary hearth of the microwave plasma incinerator, and when the microwave plasma incinerator works, the waste enters the main hearth from the incinerator feeding port, the main microwave plasma torch acts on the waste to burn the waste, the generated waste gas enters the auxiliary hearth to be combusted secondarily and then is discharged to the outside from the smoke discharge pipe, and the generated waste residue is discharged from the waste residue discharge port by the conveyor belt.

Further, the main microwave plasma torch comprises a microwave source, a tuner, a waveguide, a plasma torch, a gas supply port and a piston, wherein the microwave source comprises a direct current power supply and a magnetron, the frequency of the microwave source is 2.45GHz, inert gas is introduced into the gas supply port, the microwave acts on the inert gas to generate plasma in the plasma generator, and the plasma burns high-temperature garbage.

Furthermore, the structure of the auxiliary microwave plasma torch is the same as that of the main microwave plasma torch, inert gas is introduced into the gas supply port, the inert gas is acted by microwaves to generate plasma in the plasma generator, and the plasma processes waste gas generated by waste incineration at high temperature.

Furthermore, a support frame is arranged at the bottom of the main furnace, a smoke exhaust port is arranged at the top of the main furnace, and waste gas generated by waste incineration is exhausted out of the main furnace chamber through the smoke exhaust port.

Furthermore, a support frame is arranged at the bottom of the auxiliary furnace, a smoke inlet is formed in the top of the auxiliary furnace, and waste gas generated by waste incineration is discharged into the auxiliary hearth through the smoke inlet.

Furthermore, the smoke outlet of the main furnace and the smoke inlet of the auxiliary furnace are connected by a smoke guide pipe, and the smoke guide pipe sends the waste gas discharged by the main furnace to the auxiliary furnace.

Further, it is equipped with the gate to burn thing input port, it is the electric drive to burn thing input port gate, input port gate is equipped with independent switch, puts into main furnace as needs to rubbish, opens the gate through input port gate switch earlier, puts into and closes again after accomplishing.

Furthermore, the waste residue discharge port is provided with a gate, the waste residue discharge port gate is electrically driven, and the discharge port gate is provided with an independent switch. When waste slag needs to be discharged out of the main hearth, the gate is opened through the gate switch of the discharge port, and the waste slag is closed after the discharge is finished.

Further, the conveyer belt is electronic intelligent control, electronic intelligent control is for linking through PLC and input mouth gate, discharge port gate, and when input mouth gate was opened, PLC deadlocked the conveyer belt, and the conveyer belt was opened to the prerequisite of discharge port direction transmission, and when input mouth gate and discharge port gate were all closed, the conveyer belt will promote rubbish abundant burning at two direction of motion back and forth movements.

The invention provides a microwave plasma incinerator, relating to the key technology as follows:

firstly, the microwave excitation is utilized to generate plasma, namely, the microwave gas breakdown discharge technology uses a microwave electric field as an excitation source to breakdown the working gas passing through the electric field to obtain the gas discharge generated plasma. The plasma generation satisfies a mathematical model:

E_b＝E(λ,V_i,l,Λ)

wherein E is_bEffective value of microwave electric field, E electric field intensity required for exciting to generate plasma, E is respectively related to free space wavelength lambda of microwave and ionization potential V of working gas_iAnd the characteristic diffusion length Λ, as well as the mean free path Λ of the electrons.

Secondly, the microwave plasma torch is related to the technology, the microwave plasma torch converts electric energy into microwave energy, then converts the microwave energy into electric field energy by using a specific device, the electric field energy is transmitted and compressed to excite working gas to generate plasma, and then plasma jet with higher energy utilization rate is formed, and high-temperature plasma jet obtained by the microwave plasma torch directly acts on garbage in the incinerator, so that the garbage is pyrolyzed at high temperature.

The microwave plasma incinerator provided by the invention solves some problems caused by incineration treatment of garbage by using related technologies, and improves the incineration treatment level of the garbage. The technical scheme of the invention has the following advantages:

firstly, the microwave plasma incinerator is small in size, is widely suitable for actual situations of garbage distribution and dispersion in vast rural areas of China and limited garbage amount, and is a development scheme for further promoting harmless treatment of rural garbage along with vigorous promotion of the country;

secondly, compared with the traditional incinerator, the microwave plasma incinerator is green and environment-friendly, and compared with the traditional incinerator, the garbage thoroughly treated by the microwave plasma incinerator cannot pollute the environment, more importantly, harmful substances such as dioxin and the like cannot be generated to cause secondary pollution, the energy can be recovered for power generation and heating, and the waste residues can be recovered for building materials;

thirdly, compared with the conventional plasma incinerator which is excited by the electric arc obtained between the electrodes to generate the plasma, the microwave plasma incinerator technology provided by the invention is improved, the problems of electrode corrosion, byproduct deposition and the like can be effectively solved by utilizing the plasma excited by microwave energy, the service life of equipment is greatly prolonged, and the later equipment maintenance cost is reduced.

(IV) description of the drawings

Fig. 1 is a schematic front view of the structure of embodiment 1 of the present invention;

FIG. 2 is a schematic side view of the structure of embodiment 1 of the present invention;

fig. 3 is a schematic view of a primary/secondary microwave plasma torch according to the present invention;

FIG. 4 is a schematic front view of the structure of embodiment 2 of the present invention;

FIG. 5 is a schematic top view of a torch head according to embodiment 2 of the present disclosure.

In the figure: 1, a main furnace; 1-1, a main hearth; 1-2, feeding an incinerator; 1-3 waste residue discharge ports; 1-4 burning observation window; 1-5 main furnace supporting frames; 1-6 main furnace smoke outlet; 2, conveying a belt; 3, a gate of the incinerator throwing port; 4 a waste residue outlet gate; 5 a primary microwave plasma torch; 5-1, microwave source; 5-2, a dispenser; 5-3 waveguides; 5-4 plasma torches; 5-5 air supply ports; 5-6 pistons; 6, a smoke guide pipe; 7, auxiliary furnaces; 7-1 auxiliary hearth; 7-2 observation windows; 7-3 auxiliary furnace supporting frames; 7-4 smoke outlet; 7-5 auxiliary furnace smoke inlet; 8 pairs of microwave plasma torches; 9, a smoke exhaust pipe; 9-1 smoke exhaust pipe body; 9-2 smoke exhaust pipe support frames; 10 a microwave plasma torch; 11 a torch head; 11-1 fire outlet.

(V) detailed description of the preferred embodiments

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

For better understanding of the present invention, the following embodiments will be described clearly and completely in conjunction with the technical solutions of 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, rather than all embodiments, and all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention based on the embodiments of the present invention.

Example 1

Referring to fig. 1 to 3, the present embodiment comprises a primary microwave plasma incinerator 1 and a secondary microwave plasma incinerator 7, wherein the primary microwave plasma incinerator 1 is provided with a primary hearth 1-1, an incinerator inlet 1-2, a waste residue outlet 1-3, an incineration observation window 1-4, a primary incinerator support frame 1-5 and a primary incinerator outlet 1-6, each of which is described with reference to fig. 1 and 2, the primary hearth 1-1 is arranged at the center of the primary incinerator, the incinerator inlet 1-2 is arranged at the front of the primary incinerator, the waste residue outlet 1-3 is arranged at the back of the primary incinerator, the incineration observation window 1-4 is arranged at the right of the primary incinerator, the primary incinerator support frame 1-5 is arranged at the bottom of the primary incinerator, the primary incinerator outlet 1-6 is arranged at the top of the primary incinerator, and the secondary microwave plasma incinerator 7 is provided with a secondary incinerator 7-1, 2 and a primary incinerator outlet 1-6, The device comprises an observation window 7-2, an auxiliary furnace supporting frame 7-3, a smoke outlet 7-4 and an auxiliary furnace smoke inlet 7-5, wherein the observation window 7-2, the auxiliary furnace supporting frame 7-3, the smoke outlet 7-4 and the auxiliary furnace smoke inlet 7-5 are respectively arranged and described with reference to the positions of the observation window 1 and the auxiliary furnace smoke inlet 2, the auxiliary furnace hearth 7-1 is arranged in the center of a main furnace, the observation window 7-2 is arranged on the right side of the auxiliary furnace, the auxiliary furnace supporting frame 7-3 is arranged at the bottom of the auxiliary furnace, the smoke outlet 7-4 is arranged on the left side of the auxiliary furnace, and the auxiliary furnace smoke inlet 7-5 is arranged at the top of the auxiliary furnace.

The microwave plasma incinerator is characterized in that a main microwave plasma torch 5 is arranged on the left side of a main furnace 1 of the microwave plasma incinerator, a conveyor belt 2 is arranged below the main furnace 1 of the microwave plasma incinerator, an electric gate 3 is arranged at an incinerator throwing port, an electric gate 4 is arranged at a waste residue discharge port, an auxiliary microwave plasma torch 8 is arranged below an auxiliary furnace 7 of the microwave plasma incinerator, a smoke exhaust pipe 9 connected with a smoke exhaust port 7-4 is arranged on the left side of the auxiliary furnace 7 of the microwave plasma incinerator, and smoke guide pipes 6 are arranged at a main furnace smoke exhaust port 1-6 of the main furnace 1 of the microwave plasma incinerator and an auxiliary furnace smoke inlet 7-5 of the auxiliary furnace 7 of the microwave plasma incinerator.

The main microwave plasma torch 5 comprises a microwave source 5-1, a tuner 5-2, a waveguide 5-3, a plasma torch 5-4, an air supply port 5-5 and a piston 5-6, the secondary microwave plasma torch 8 is identical to the main microwave plasma torch 5 in structure and comprises a smoke exhaust pipe body 9-1 and a smoke exhaust pipe support frame 9-2.

The working process of the example is as follows: garbage enters a main hearth 1-1 from an incinerator input port 1-2, then a incinerator input port gate 3 is closed, at the moment, a conveyor belt 2 and a waste residue discharge port gate 4 are simultaneously in a closed state, a microwave plasma torch 5 and an auxiliary microwave plasma torch 8 start to work, the conveyor belt 2 moves forwards/backwards in two directions, so that the garbage is uniformly incinerated, generated waste gas enters an auxiliary furnace 7 through a main furnace exhaust port 1-6 through a smoke guide pipe 6 for secondary combustion treatment, and finally gas is discharged to the outside through a smoke discharge pipe 9 through a smoke discharge port 7-4.

Example 2

Referring to fig. 4 and 5, the present example is different from example 1 in that a microwave plasma torch 10 is added on the right side of the main furnace, and a torch head 11 is added on the basis of the secondary microwave plasma torch 8 of example 1, the structure of the microwave plasma torch 10 is identical to that of the primary microwave plasma torch 5, the microwave plasma torch comprises a microwave source, a tuner, a waveguide, a plasma torch, a gas supply port and a piston, the microwave source comprises a direct current power supply and a magnetron, the torch head 11 is provided with a plurality of fire holes 11-1, and the torch head 11 is a ladder-shaped metal structure.

Other structures and components of the present embodiment are the same as those of example 1.

The microwave plasma torch 10 is additionally arranged in the embodiment, so that garbage can be incinerated more quickly and fully, the working efficiency of the incinerator is greatly improved, the torch head 11 is additionally arranged in the embodiment, the flame sprayed by the microwave plasma torch is wider in range, the waste gas entering the auxiliary furnace smoke inlet 7-5 can be combusted more fully, and the secondary pollution is greatly reduced.

The working procedure of this example is the same as example 1.