CN105864786A - Garbage incinerator - Google Patents

Abstract

The invention provides a garbage incinerator and belongs to the technical field of furnaces. The garbage incinerator comprises an incinerator body and a concave disc dust treating device. The concave disc dust treating device is arranged in the incinerator body and comprises a first concave disc and flow distributing and mixing pipes. The upper surface of the first concave disc is inclined downwards from outside to inside. Through holes are formed in the side wall of the first concave disc, a first dust falling hole is formed in the middle of the first concave disc, the flow distributing and mixing pipes are arranged on the lower surface of the first concave disc, and the flow distributing and mixing pipes are matched with flow distributing holes to enable the spaces of the upper surface and the lower surface of the concave disc dust treating device to be communicated. Gas flow generated after garbage is combusted in the incinerator body enters the part above the concave disc dust treating device from the part below the concave disc dust treating device through the flow distributing and mixing pipes and the through holes. According to the garbage incinerator, the concave disc dust treating device is arranged in the incinerator body and used for treating incompletely-combusted particles ascending along with flame air flow, the incompletely-combusted particles slide to a combustion chamber to be combusted again through settling of the concave disc dust treating device and back flow of ascending air flow, and the incompletely-combusted particles are reduced.

Description

a waste incinerator

technical field

The invention belongs to a stove, in particular to a garbage incinerator.

Background technique

With the development of society, people's quality of life is getting better and better, followed by a large amount of domestic waste. At present, there are two commonly used waste disposal methods: one is to use landfill technology, however, With the gradual reduction of urban land, people are also looking for alternatives to landfill technology; another way is to incinerate domestic waste, which produces a large amount of toxic gases during incineration, and due to the variety of domestic waste, combustible The density, shape, chemical properties, and combustion effects of the objects are all different, so many combustibles cannot be fully burned in the ordinary incineration method, and a large amount of black smoke and harmful gases are produced during incomplete combustion, polluting the atmosphere and harming the environment. human health. In addition, when the garbage is burned in the open air, it will produce a lot of odor and affect the lives of the surrounding residents.

In the process of incinerating garbage, due to the incomplete combustion of the ash when the garbage is burned, some incompletely burned particles will eventually rush out of the incinerator with the rising hot gas.

Contents of the invention

In view of the above problems, it is necessary to provide a garbage incinerator to prevent incomplete combustion particles from escaping outside the furnace.

In order to achieve the above object, the present invention adopts the following technical solutions: a garbage incinerator, including a furnace body and a concave disc dust processor, the concave disc dust processor is arranged inside the furnace body, including a first concave disc and a diverter Mixing tube; the upper surface of the first concave plate is inclined downward from the outside to the inside; the side walls of the two first concave plates are provided with through holes, the first ash drop hole is opened in the middle, and the lower surface is provided with a split flow mixing tube , the split and mixed flow pipe cooperates with the through hole to communicate with the space on the upper and lower surfaces of the concave disc dust processor; the airflow generated after the garbage is burned in the combustion chamber of the furnace body passes through the split and mixed flow pipe and the through hole Entering from below the concave disc dust processor to above the concave disc dust processor.

Further, the upper surface of the first concave disk is parallel to the lower surface.

Further, the first concave disk is in the shape of a hollow inverted conical frustum.

Further, the first concave plate includes four trapezoidal side plates, and the sides of the four trapezoidal side plates are sequentially connected end to end to form an inverted trapezoid.

Further, the splitting and mixing pipes are arranged obliquely relative to the horizontal plane.

Further, the axis of the splitting and mixing pipe is perpendicular to the tapered surface and points to the axis of the first ash drop hole.

Further, the first ash-falling hole penetrates through the concave-disc dust handler and communicates with the space on the upper and lower surfaces of the concave-disc dust handler.

The present invention has the following beneficial effects:

In the present invention, a concave disk dust processor is arranged inside the furnace body to process the incomplete combustion particles rising with the flame airflow, and the incomplete combustion particles slide down to the combustion chamber again through the settlement of the concave disk dust processor and the return flow of the rising airflow for combustion. Reduce the generation of incomplete combustion particles.

Description of drawings

Fig. 1 is a three-dimensional schematic view of a garbage incinerator of the present invention.

Fig. 2 is a schematic perspective view of a garbage incinerator of the present invention when the feed door is closed.

Fig. 3 is a schematic cross-sectional view of the middle and lower furnace body (viewed from the direction of the feed port) of the present invention.

Fig. 4 is a partial sectional view of a waste incinerator in the present invention.

Fig. 5 is a schematic cross-sectional view of the upper furnace body in the present invention.

Fig. 6 is a three-dimensional schematic diagram of the clamping air inlet pipe in the present invention.

Fig. 7 is a sectional view of the feeding hopper in the third embodiment of the present invention (the feeding door is not cut).

Description of main component symbols

The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings.

detailed description

Please refer to Fig. 1-2, in a preferred embodiment of the present invention, a garbage incinerator includes a lower furnace body 1, an upper furnace body 2, a smoke exhaust pipe 3, a draft part 4, a blower fan 5 and A feed hopper 6 is provided with a slag discharge part 7 and a flue gas bin 8. The lower furnace body 1 and the upper furnace body 2 form a furnace body.

Please refer to Fig. 3, the lower furnace body 1 includes an outer cylinder 11, an inner cylinder 12, a built-in water tank 13, a first ash collecting concave pan 14, a second ash collecting concave pan 15 and a burner 16 A ventilating space 17 is formed around the outer cylinder 11 , the inner cylinder 12 , the first ash collecting concave pan 14 , and the second ash collecting concave pan 15 .

The outer cylinder 11 includes an outer cylinder body 111 , a sealing plate 112 and a bottom plate 113 . The outer cylinder 11 is a hollow structure, and the sealing plate 112 is arranged on the top of the outer cylinder 111 and is connected with the upper furnace body 2 to close the gap at the top of the outer cylinder 111 to prevent the flame from escaping. out of the garbage incinerator, so that the flame enters the upper furnace body 2. The bottom plate 113 is disposed at the bottom of the outer cylinder 111 .

The inner cylinder 12 is arranged in the outer cylinder 11 and includes an inner cylinder body 121 , a ventilating neck 122 and a drying dross tray 123 .

The inner cylinder 121 is a hollow structure, the inner cavity communicates with the inner cavity of the feed hopper 6, the ventilation constriction 122 is arranged on the inner cylinder 121, and several air inlets 1221 are opened; The drying slag tray 123 is in the shape of an inverted cone, the upper part is connected to the inner cylinder 121, the bottom is provided with a first slag outlet 1231, and the tray body is also provided with a slag outlet connected to the first ash collection concave tray 14. Ventilation openings 1232 on the surface and the lower surface. Preferably, the axial direction of the air inlet 1221 is inclined toward the tangential direction of the location, so that the flame in the lower furnace body 1 is in a spiral shape, and the mixing degree of air and combustion particles is increased. In the embodiment of the present invention, the garbage is poured into the inner cylinder 12 for combustion, and the inner cylinder 12 is used as a drying chamber and a combustion chamber of the furnace body.

The upper surface of the first ash-collecting concave plate 14 is in the shape of an inverted truncated cone, and is arranged in the outer cylinder 11, and is arranged under the first slag discharge port 1231, and has a second slag discharge port 141, And there is a gap with the inner cylinder 12 for introducing fresh charge into the inner cylinder 12 . Preferably, the first slag outlet 1231 is coaxial with the second slag outlet 141 .

The upper surface of the second ash-collecting concave plate 15 is in the shape of an inverted truncated cone, and it is arranged in the outer cylinder 11, and a first ash-falling opening 151 is opened in the middle of the bottom. The first ash outlet 151 communicates with the inner tube 12 . Preferably, the first ash drop opening 151 communicates with the inner cylinder 12 through the ventilation constriction 122 . In the embodiment of the present invention, the inner cylinder 12 further includes a connecting body 124, the connecting body 124 is hollow, and is used to communicate with the upper surface of the second ash collecting concave plate 15 and the inner cavity of the inner cylinder 12, so The outer cylindrical body 11 , the inner cylindrical body 12 , the first ash collecting concave pan 14 , the second ash collecting concave pan 15 , and the connecting body 124 surround and form a ventilation space 17 . In this embodiment, the connecting body 124 is provided with a tuyere for replenishing fresh charge.

Please refer to FIG. 4 , the built-in water tank 13 is arranged in the outer cylinder 11 , and arranged on the second ash collecting concave pan 15 , and communicated with the outside. The built-in water tank 13 is provided with a water vapor outlet 131 , and the water vapor outlet 131 communicates with the inner chamber of the outer cylinder 11 and the inner chamber of the inner cylinder 12 . The built-in water tank 13 generates water vapor by absorbing the heat of combustion, and the water vapor adds moisture to the unburned particles during combustion to make them settle and fall. Preferably, the water vapor outlet 131 is set on the top or side of the built-in water tank 13, when the water vapor outlet 131 is opened on the top surface of the built-in water tank 13, above the water vapor outlet 131 A gray baffle is provided to prevent dust from falling into the built-in water tank 13; the built-in water tank 13 communicates with an external water tank (not shown), and the highest design water level of the external water tank is not higher than the The water vapor discharge port 131; the horizontal projection of the built-in water tank 13 does not overlap with the horizontal projection of the first ash drop port 151.

Both ends of the burner 16 are respectively provided with ports 162, the two ports 162 are connected, one end extends into the inner cylinder 12, and is filled with a solid flame-retardant material 161 with a gap, and the other end extends out of the outer cylinder 11 Used to add combustion aids. Preferably, the height of the ports 162 at both ends of the burner 16 is not lower than the height of the middle communication section, and the height of the port 162 for adding a combustion aid is not higher than the height of the port 162 at the other end; the solid flame-retardant material 161 is glass fiber, asbestos, sand, lime, and the combustion accelerant is oil. In this embodiment, the burner 16 has a U-shaped tube structure, and the solid flame-retardant material 161 is filled in the U-shaped tube structure, and a valve for controlling the on-off of the burner 16 is also provided. The valve is opened when the garbage incinerator is in use and closed when not in use to prevent backfire.

When the port 162 at one end of the inner cylinder 12 in the burner 16 is set upward, a gray baffle is arranged above the port 162, and there is a gap between the ash baffle and the port 162 so that the combustion oxidizer It can be mixed with the air in the inner tube 12 for combustion. When the port 162 of the burner 16 located at one end of the inner cylinder 12 is arranged on the side, no ash baffle is required.

Please refer to Fig. 5, the upper furnace body 2 is arranged above the lower furnace body 1, and a heat exchange dust processor 21 and a concave disk dust processor 22 are arranged inside, and the heat exchange dust processor 21 includes two The second concave plate 211 and some connecting pipes 212; the two second concave plates 211 are arranged in the same direction, wherein one second concave plate 211 is located on the other second concave plate 211, and the second concave plate 211 located on the top The upper surface and the lower surface of the second concave disk 211 located below are inclined downward from the outside to the inside. In this embodiment, they are in the shape of a hollow inverted conical cone. There is a second ash drop hole 2111 in the middle of the two second concave disks 211. ; The side walls of the two second recessed discs 211 are provided with flow holes 2112 . The connecting pipe 212 is arranged between the two second concave disks 211, the second ash-falling holes 2111 of the two second concave disks 211 communicate through the connecting pipe 212, the two second concave disks 211 The distribution holes 2112 communicate with each other through the connecting pipes 212 . The two second concave plates 211 , the connecting pipe 212 , and the furnace wall of the upper furnace body 2 form a preheating space 213 . Preferably, the upper surfaces of the two second concave plates 211 are parallel to their respective lower surfaces, and the upper surfaces of the two second concave plates 211 are parallel to each other; the upper furnace body 2 is arranged on the lower furnace body 1 The connecting pipe 212 connecting the split hole 2112 is perpendicular to the cone surface, and the axis of the connecting pipe 212 points to the axis of the second ash drop hole 2111. In another embodiment of the present invention, the inner cylinder 12 is a cuboid, and the second concave plate 211 includes four trapezoidal side plates, and the sides of the four trapezoidal side plates are connected end to end in order to form an inverted trapezoid. In this embodiment, the space between the bottom of the heat exchange dust processor 21 and the inner tube 12 is also used as a combustion chamber.

The concave disc dust processor 22 includes a first concave disc 221 and several splitting and mixing tubes 222 . The first concave plate 221 is arranged on the heat exchange dust processor 21, the upper surface is inclined downward from the outside to the inside, in this embodiment, it is in the shape of a hollow inverted conical cone, and a through hole 2211 is opened on the side wall. A first ash drop hole 2212 is opened in the middle, and a number of split and mixed flow pipes 222 are arranged on the lower surface. The flow splitting and mixing tube 222 cooperates with the through hole 2211 to communicate with the space on the upper and lower surfaces of the concave disk dust processor 22 . The incomplete combustion particles above the concave disc dust processor 22 slide down from the upper surface to the first ash falling hole 2212 and then fall from the first ash falling hole 2212 , and when the concave disc dust processor 22 When the airflow below meets the lower surface of the concave disk dust processor 22, a part of the airflow directly enters the top of the concave disk dust processor 22 from the split flow mixing pipe 222, and the other part of the airflow is due to the protruding split flow mixing pipe 222. The function of the pipe wall of 222 can allow the airflow with incomplete combustion particles to flow back and mix with the rising airflow below the concave disc dust processor 22, reducing the rising speed of the airflow and making the incomplete combustion particles in the airflow settlement. Preferably, the splitting and mixing tube 222 is arranged obliquely relative to the horizontal plane, and the axis is perpendicular to the conical surface where it is located and points to the axis of the first ash drop hole 2212 . The upper surface of the concave plate 221 is parallel to the lower surface. In another embodiment of the present invention, the upper furnace body 2 is in the shape of a cuboid, the first concave plate 221 includes four trapezoidal side plates, and the sides of the four trapezoidal side plates are connected end to end in turn to form a hollow inverted trapezoidal body. shape.

On the horizontal plane, the projection of the second ash drop hole 2111 of the second concave plate 211 below falls within the projection of the second ash collection concave plate 15 and does not overlap with the projection of the first ash drop hole 151 , the projection of the first ash drop hole 2212 falls within the projection of the split flow heat exchange dust processor 21 . Preferably, the first ash drop hole 2212 is coaxial with the second ash drop hole 2111 .

The exhaust pipe 3 includes a pipe wall 31 and a constriction 32 , and the pipe wall 31 is connected to the upper part of the upper furnace body 2 . The constriction 32 is disposed below the pipe wall 31 and extends downward. The tube wall 31 between the connection part of the tube wall 31 and the upper furnace body 2 and the constriction 32 is provided with a plurality of diversion holes 33, and the diversion holes 33 are used to divert the burned gas. Preferably, the pipe-side flow area of the exhaust pipe 3 is greater than the sum of the areas of all the diversion holes 33 plus the area of the smallest hole on the neck 32, and the exhaust pipe 3 is vertically arranged so that the gas flows When it flows into the exhaust pipe 3 , the pressure decreases, and the particles carried in the air flow settle to the constriction 32 and slide down into the upper furnace body 2 . In the embodiment of the present invention, the guide holes 33 opened in the smoke exhaust pipe 3 are at the same axial position of the smoke exhaust pipe 3, and the guide holes 33 are evenly and symmetrically opened on the smoke exhaust pipe 3 , the axis of the diversion hole 33 is perpendicular to the pipe wall 31 of the exhaust pipe 3 where it is located, and the axis of the necking 32 is perpendicular to the ground.

Please refer to FIG. 1 , the air induction part 4 includes several air induction pipes 41 . The air inlet of the fan 5 communicates with the feed hopper 6 through an air duct 41 , and the air outlet communicates with the preheating space 213 through an air duct 41 .

One end of the feeding hopper 6 communicates with the inner cylinder 12, and the other end is provided with a feeding port 61, forming a channel for supplying garbage to the furnace body. The height of the connecting end between the feed hopper 6 and the inner cylinder 12 is not higher than the height of the outlet of the burner 16 on the side of the inner cylinder 12, so that the garbage entering from the feed hopper 6 will not block the The outlet of the burner 16. Said blower fan 5 sucks the odor produced by the garbage put into the hopper 6 into the garbage incinerator through the air-inducing part 4, and the odor is processed when the garbage incinerator burns the garbage, so as to avoid The adverse effects caused by the odor are eliminated.

Preferably, the feed hopper 6 includes a feed hopper body 62 and a feed gate 63; the feed port 61 is provided on the feed hopper body 62, and the feed gate 63 is used to open or close the feed Port 61; the feed hopper body 2 is arranged obliquely, and the feed port 61 is located on the high side; the connection end between the air induction part 4 and the feed hopper 6 is located on the feed hopper body 62, and The feed port 61 is opposite; the feed gate 63 is rotatably connected to the feed hopper 6; the axis of rotation is parallel to the feed port 61 and close to the feed hopper 6 on the side where the feed port 61 is located side wall, and stick to the side wall of the feed hopper 6 on the side where the feed inlet 1 is located; the radius of rotation of the feed gate 63 is less than or equal to The distance between the connecting ends of the feed hopper 6 is greater than the distance between the two side walls parallel to the rotation axis of the feed gate 63 in the feed hopper 6 .

In this embodiment, since the rotation radius of the feeding door 63 is less than or equal to the distance from the rotating shaft to the connecting end of the air induction part 4 and the feeding hopper 6 , it is larger than that of the feeding hopper 6 . The distance between the two side walls parallel to the axis of rotation of the feed gate 63, when the feed gate 63 rotates to the inside of the feed hopper 6 and is stuck on the feed hopper body 62, the The channel of the feed hopper 61 is closed and does not block the air intake of the fan 5, which reduces the escape of the odor. Baffles are arranged on the inner side and the outer edge, so that the feed door 63 is parallel to the ground when it is outwardly rotated and stuck on the side wall of the feed port 61 side, and garbage can be placed on the feed door 63, so that people Rubbish is not easy to scatter out of described feed hopper 6 when adding rubbish.

In the vertical direction, the slag discharge part 7 is arranged under the first ash collecting concave tray 14 , and includes a box body 71 and an ash receiving tray 72 . The ash tray 72 is arranged inside the box body 71 and can be drawn out. The box body 71 is provided with holes so that the ash receiving tray 72 can receive the ash falling from the second slag outlet 141, and the side wall of the box body 71 is opened with a slag outlet 73 connected to the outside world. , The slag discharge port 73 is also provided with a slag discharge cover (not shown) for opening or closing the slag discharge port 73 .

In the vertical direction, the flue gas chamber 8 is arranged above the ventilation constriction 122 . One end of the flue gas chamber 8 communicates with the inner tube 12, and the other end communicates with the outside world. An ignition cover (not shown) is provided at the end communicating with the outside world, and a movable fire grate 81 is provided at the bottom. After rubbish is put into described inner tube 12, people can ignite by opening described ignition cover; Store the combustible gas produced by the incomplete combustion of a part of garbage; when the garbage is burned for a period of time or because the garbage itself is relatively mixed, the calorific value of different garbage is different, resulting in the reduction of combustibles, and it is stored in the flue gas bin 8 at this time The combustible gas in the cavity continues to enter the inner cylinder 12 for combustion, which plays a role in stabilizing the flame in the garbage incinerator. The movable fire grate 81 can block large pieces of non-combustible garbage and extract them from the flue gas bin 8, which is convenient for people to clean the garbage incinerator. Preferably, in the vertical direction, the flue gas bin 8 is located below the connection between the feed hopper 6 and the inner cylinder 12 or is at the same level as the connection.

When in use, open the feed door 63 of the feed hopper 6, pour the rubbish from the feed hopper 6 into the garbage incinerator, and the rubbish falls into the lower furnace body 1 along the feed hopper 6. Then open the ignition cover and use charcoal or gasoline to ignite the garbage. When the garbage burning is relatively stable, open the blower fan 5 for air supply, and then close the ignition cover. At the same time, the valve of the burner 16 is opened, and the burner is poured into the burner 16 according to the amount of garbage to be burned. Due to the blocking of the solid flame retardant, the combustion accelerant evaporates slowly during the garbage incineration process, enters the inner cavity of the inner cylinder 12 and burns, so that the temperature in the garbage incinerator can be stabilized at the ignition point of all garbage containing different combustibles Above, ensure that the waste in the waste incinerator is incinerated cleanly. Simultaneously, owing to being provided with described burner 16 in described refuse incinerator, promoted the furnace temperature of described refuse incinerator, makes the furnace temperature of described refuse incinerator higher than the temperature of common incineration treatment, makes garbage burning produce The dioxins are completely decomposed, reducing harmful other emissions.

The fan draws air from the side of the feed hopper 6 into the preheating space, then enters the ventilation space, and finally enters the The inner cylinder 12 can dry the garbage on the one hand, and on the other hand, because the air is preheated, the furnace temperature is improved, and oxygen is supplied to the inner cylinder 12 to ensure the normal combustion of the garbage.

The garbage burned in the inner cylinder 12 has various components, such as light objects such as paper, which easily escape the garbage incinerator with the updraft when they are not completely burned, and the water vapor produced by the built-in water tank 13 after being heated adheres to the garbage incinerator. On objects such as paper that are relatively light and incompletely burned, the weight of the object is increased, so that these objects are dropped into the inner cylinder 12 for reburning. Simultaneously, on the horizontal plane, because the projection of the second ash-falling hole 2111 of the second concave plate 211 below falls within the projection of the second ash-collecting concave plate 15, and is consistent with the first ash-falling opening 151 The projections do not overlap, so that the rising flame increases the resistance during the rising process, and due to the increased resistance, a part of the incomplete combustion particles fall on the second ash collecting concave plate 15, and then slide into the inner cylinder 12 to continue to burn.

When the rising flame rises to the heat exchange dust processor 21, because the heat exchange dust processor 21 transfers the heat energy of the rising flame to the fresh charge, the energy of the rising airflow is reduced, and because the rising airflow is passing through the heat exchange After the dust processor 21, the pressure drops suddenly, so that some incomplete particles fall on the upper surface of the heat exchange dust processor 21 and slide down to start burning again.

When the rising flame rises to the concave disk dust processor 22, the content of incomplete combustion particles is further reduced through further treatment by the concave disk dust processor 22.

Finally, when the rising airflow enters the smoke exhaust pipe 3, since the tube side flow area of the smoke exhaust pipe 3 is greater than the sum of the minimum flow area of the constriction 32 and the area of the guide hole 33, the air flow After entering the exhaust pipe 3, the pressure decreases; when the exhaust pipe 3 is vertically arranged on the incinerator, the incomplete combustion particles in the airflow are separated from the airflow and slide down from the neck 32, reducing The generation of incomplete combustion particles prevents the smoke exhaust pipe 3 from discharging colored smoke.

After the garbage is incinerated, close the valves of the blower fan 5 and the burner 16 so that the burner 16 will not flash back.

The ash after the burning of garbage falls on the bottom of the lower furnace body 1, the slag cover of the slag discharge part 7 can be opened, and the ash and slag can be taken out by pulling out the ash tray 72 of the slag discharge part 7.

Please refer to FIG. 6 , in the second embodiment of the present invention, the inner cylinder 12 is also provided with an air intake clamping pipe 9 , and the air intake clamping pipe includes a main pipe 91 and a three-manifold 92 ; One end of the three manifolds 92 communicates with the ventilation space 17, and the other end communicates with the main pipe 91; an air hole 911 is provided on the upper side of the main pipe 91, and the air hole 911 faces away from the direction of the feeding port 61. ; A manifold 92 in the three manifolds 92 is higher than the other two manifolds 92, and in the horizontal direction, the highest manifold 92 faces the direction of the feed inlet 61; in the vertical direction, the other two manifolds 92 It is staggered with the highest manifold 92 and located on both sides of the highest manifold 92 respectively; the fan 5 sucks fresh charge into the ventilation space 17 and enters the inner cylinder through the air hole 911 . Preferably, in the horizontal direction, the angle between the highest manifold 92 and the other two manifolds 92 is 15° to 90°. In this embodiment, the angle between the highest manifold 92 and the other two manifolds 92 is 60°.

When the garbage is dumped into the above-mentioned garbage incinerator, due to the influence of the air inlet clamping pipe 9, the garbage is shunted from the outlet of the above-mentioned feeding hopper 6 to the two sides of the above-mentioned inner cylinder 12, which avoids most of the space of the inner cylinder 12 from being unoccupied. question that can be fully exploited. At the same time, because the main pipe 91 extends into the inner cylinder 12 and supplies air to the inner cylinder 12, the height of the flame center is increased, the furnace temperature is raised, and the stability of garbage combustion is increased.

Please refer to FIG. 7, in the third embodiment of the present invention, the feed hopper 6 includes a top plate 64, a bottom plate 65 arranged obliquely, two connecting plates 66 connecting the top plate 64 and the bottom plate 65, and Material gate 63, and is provided with described feed port 61, and described feed gate 63 comprises first rotating part 631 and second rotating part 632; Described first rotating part 631 is connected with described connecting plate 66 in rotation, rotates The shaft is the first rotation shaft; the first rotation part 631 is connected to the second rotation part 632 in rotation, the rotation shaft is the second rotation shaft, the first rotation shaft, the second rotation shaft, the bottom plate 65 are parallel to each other, the first rotation axis is in contact with the top plate 64 , and the rotation radius of the first rotation portion 631 is not greater than the distance from the first rotation axis to the bottom plate 65 . Preferably, the rotation radius of the first rotation part 631 is smaller than the distance from the first rotation axis to the bottom plate 65, and the rotation radius of the second rotation part 632 is not greater than the distance from the first rotation axis to the bottom plate 65; the maximum radius of rotation of the feed gate 63 is equal to the vertical distance from the first axis of rotation to the bottom plate 65 directly below it, and the distance from the first axis of rotation to the second axis of rotation is equal to the distance from the second axis of rotation The radius of rotation of the second rotating portion 632; the top plate 64 and the bottom plate 65 are perpendicular to the two connecting plates 66 and arranged in parallel.

In the natural state, the first rotating part 631 and the second rotating part 632 hang down naturally to close the channel of the feeding hopper 6. When the garbage is poured into the feeding hopper 6, it is affected by the gravity of the garbage, The first rotating part 631 and the second rotating part 632 rotate inwards. After dumping the garbage, if there is more garbage, since the first rotating part 631 and the second rotating part 632 are rotatably connected, the first rotating part 631 can be rotated outward. The rotating part 631 makes the second rotating part 632 protrude outward, so that the second rotating part 632 will not be crushed to death by the rubbish. After the second rotating part 632 is pulled out, due to the influence of its own weight, the first rotating part 631 and the second rotating part 632 continue to rotate inward and close the feeding hopper 6 .

In the present invention, the concave disk dust processor 22 is arranged inside the furnace body to process the incomplete combustion particles rising with the flame airflow, and the incomplete combustion particles slide down to the combustion chamber again through the settlement of the concave disk dust processor 22 and the return flow of the upward airflow Combustion to reduce the generation of incomplete combustion particles.

The above description is a detailed description of the preferred feasible embodiments of the present invention, but the embodiments are not used to limit the scope of the patent application of the present invention. All equivalent changes or modifications completed under the technical spirit suggested by the present invention shall belong to The scope of patents covered by the present invention.

Claims (7)

1. A garbage incinerator, comprising a furnace body, characterized in that: the garbage incinerator also includes a concave disc dust processor, and the concave disc dust processor is arranged inside the furnace body, including a first concave disc and a Dividing and mixing pipe; the upper surface of the first concave plate is inclined downward from the outside to the inside; through holes are opened on the side walls of the two first concave plates, a first ash drop hole is opened in the middle, and a split and mixed flow pipe is provided on the lower surface. tube, and the split and mixed flow tube cooperates with the through hole to communicate with the space on the upper and lower surfaces of the concave disc dust processor; the airflow generated after the garbage is burned in the combustion chamber of the furnace body passes through the split and mixed flow tube and the through hole. A hole enters from below the concave pan dust handler to above the concave pan dust handler. 2. A garbage incinerator according to claim 1, characterized in that: the upper surface of the first concave plate is parallel to the lower surface. 3. A garbage incinerator according to claim 2, characterized in that: said first concave disk is in the shape of a hollow inverted conical frustum. 4 . The garbage incinerator according to claim 1 , wherein the first concave plate includes four trapezoidal side plates, and the sides of the four trapezoidal side plates are connected end to end in sequence to form an inverted trapezoid. 5. A garbage incinerator as claimed in claim 3, characterized in that: said flow splitting and mixing pipes are arranged obliquely relative to the horizontal plane. 6. A garbage incinerator as claimed in claim 5, characterized in that: the axis of the split flow mixing pipe is perpendicular to the cone surface where it is located, and points to the axis of the first ash drop hole. 7. A garbage incinerator as claimed in claim 1, characterized in that: the first ash-falling hole penetrates through the concave disc dust processor and communicates with the upper and lower surfaces of the concave disc dust processor.