Waste incinerator

Abstract

Disclosed in the present invention is a waste incinerator, comprising: an incinerator body, wherein a first flue gas outlet and a waste inlet are formed in the top of the incinerator body; a plurality of rotary fire grates, wherein a plurality of partition plates are arranged at intervals at the top of each rotary fire grate, each partition plate is in a cylinder shape and is coaxially arranged with the incinerator body, the heights of the partition plates on the topmost rotary fire grate gradually increase from inside to outside, and gaps in the plurality of rotary fire grates gradually decrease from top to bottom; a rotating shaft fixedly connected to each rotary fire grate; a power device connected to the rotating shaft; and a temporary storage cylinder located above the partition plates on the topmost rotary fire grate, wherein a waste outlet is formed in the bottom of the temporary storage cylinder, the waste outlet is opposite to the interior of the innermost partition plate on the topmost rotary fire grate, the waste inlet is communicated with the interior of the temporary storage cylinder, and the first flue gas outlet is communicated with the part, located outside the temporary storage cylinder, in the incinerator body. According to the present invention, wastes on each rotary fire grate can be uniformly distributed, so that the utilization rate of the rotary fire grates can be increased.

Description

garbage incinerator Technical Field

[0001] The present invention relates to the field of garbage disposal, and more particularly to a garbage incinerator. Background Art

[0002] Waste incinerators are commonly used for the harmless treatment of medical and domestic waste, including animals. Their principle is to utilize fuels such as coal, oil, and gas to burn and carbonize the waste at high temperatures, achieving the purpose of disinfection.

[0003] Existing garbage incinerators, such as the garbage incinerator with application number 201710204951.4, when in use, garbage enters the first-stage rotating grate inside the furnace body from the feed port, and the motor works to drive the rotating shaft and the multi-stage rotating grate to rotate slowly, helping large pieces of garbage to remain on the circular grate of the first-stage rotating grate, while smaller garbage falls on the multi-stage rotating grate below and the bottom grate in turn. The circumferential retaining cylinders at each level can prevent garbage from falling from the periphery of the circular grate, but after the garbage falls on the rotating grate, it will be thrown to the edge of the grate under the action of centrifugal force, which can easily lead to uneven distribution of garbage on the grate and low utilization rate of the grate.

[0004] Summary of the Invention

[0005] The object of the present invention is to provide a waste incinerator. By arranging multiple partitions on the rotary grate and making the height of each partition on the top rotary grate gradually increase from the inside to the outside, the garbage falling from the temporary storage tube can be sequentially entered into the partitions on the top rotary grate, so that larger garbage can be evenly distributed on the top rotary grate, and smaller garbage can fall on the multi-stage rotary grate below in sequence. Because the multi-stage rotary grate below is also provided with partitions, the garbage on it can be prevented from being concentrated on the edge of the rotary grate.

[0006] In order to achieve these objects and other advantages of the present invention, a waste incinerator is provided, comprising:

[0007] The furnace body is cylindrical, and a first smoke outlet and a garbage inlet are provided on the top of the furnace body;

[0008] Multiple rotating grates are arranged at intervals in the furnace body along the vertical direction. Multiple partitions are arranged at intervals on the top of each rotating grate. Each partition is cylindrical and coaxially arranged with the furnace body. The partitions on the topmost rotating grate gradually increase in height from the inside to the outside, and the gaps on the multiple rotating grates gradually decrease in size from top to bottom. The area inside the innermost partition of each rotating grate and the area between two adjacent partitions respectively form a garbage storage area.

[0009] A rotating shaft is coaxially arranged with the furnace body, passes through each rotating grate, and is fixedly connected to each rotating grate, so that each rotating grate can rotate with the rotating shaft;

[0010] A power device is provided on the top of the furnace body and connected to the top of the rotating shaft, and is used to drive the rotating shaft to rotate;

[0011] A temporary storage barrel is fixed in the furnace body and is located above each partition on the topmost rotating grate. A garbage outlet is provided at the bottom of the temporary storage barrel, and the garbage outlet is opposite to the inside of the innermost partition on the topmost rotating grate. A component for opening and sealing the garbage outlet is provided at the garbage outlet; the garbage inlet is connected to the interior of the temporary storage barrel, and the first flue gas outlet is connected to the part of the furnace body located outside the temporary storage barrel.

[0012] Preferably, in the waste incinerator, each rotating grate is circular, and the center of each rotating grate is on the axis of the furnace body.

[0013] Preferably, in the waste incinerator, a plurality of cutters are provided on the rotating shaft, and the plurality of cutters are all located in the temporary storage tube.

[0014] Preferably, in the waste incinerator, a second flue gas outlet is further provided on the top of the furnace body, the second flue gas outlet is communicated with the interior of the temporary storage tube, the interior of the rotating shaft is hollow and the bottom is open, an air hood is provided at the bottom of the rotating shaft, the interior of the air hood is communicated with the interior of the rotating shaft, the interior of each cutter is hollow and communicated with the interior of the rotating shaft, and each cutter is provided with a plurality of air outlet holes at intervals.

[0015] Preferably, in the waste incinerator, a plurality of air outlet holes are arranged at intervals on the bottom of each cutter.

[0016] Preferably, in the waste incinerator, except for the rotary grate located at the top, the tops of the partitions on the other rotary grates have the same height.

[0017] Preferably, in the waste incinerator, a trough is provided on the side wall of the furnace body, and the trough extends in the vertical direction;

[0018] The waste incinerator also includes:

[0019] Multiple disintegration parts, one of which is provided above each rotating grate. Each disintegration part comprises a fixed plate and a plurality of rake teeth, wherein the plurality of rake teeth are spaced apart at the bottom of the fixed plate along the radial direction of the rotating grate; the interior of each partition plate is opposite to at least one rake tooth; and each garbage storage area is opposite to at least one rake tooth.

[0020] A connecting rod is vertically arranged and located in the tank body, and is fixedly connected to each fixing plate;

[0021] The driving device is connected to the topmost fixed plate and is used to drive the topmost fixed plate to move upward to seal the garbage outlet and move downward to open the garbage outlet; when the topmost fixed plate seals the garbage outlet, each rake tooth is located above the corresponding garbage storage area; when the topmost fixed plate opens the garbage outlet, each rake tooth moves to the corresponding garbage storage area and is separated from the top of the rotating grate below it by a certain distance.

[0022] Preferably, in the waste incinerator, the furnace body is provided with an air vent;

[0023] The waste incinerator also includes:

[0024] A bottom grate is provided below the bottommost rotating grate, and the tuyere is located below the bottom grate;

[0025] Two ignition guns are arranged inside the furnace body and located between the bottom rotary grate and the bottom grate, and are close to the bottom rotary grate and the bottom grate respectively.

[0026] Preferably, in the waste incinerator, the temporary storage tube is fixed on the top of the furnace body.

[0027] Preferably, in the waste incinerator, the driving device is fixed on the top of the furnace body.

[0028] The present invention has at least the following beneficial effects:

[0029] The present invention provides multiple partitions on the rotary grate, and makes the height of each partition on the top rotary grate gradually increase from the inside to the outside, so that the garbage falling from the temporary storage barrel can enter the partitions on the top rotary grate in turn, so that larger garbage can be evenly distributed on the top rotary grate, and smaller garbage can fall on the multi-stage rotary grate below in turn. Because the multi-stage rotary grate below is also provided with partitions, the garbage on it can be prevented from being concentrated on the edge of the rotary grate. In this way, the garbage on each rotary grate can be evenly distributed, thereby improving the utilization rate of the rotary grate.

[0030] The present invention can distribute garbage to each rotating grate in sections by arranging a temporary storage cylinder, so as to avoid that when the garbage on the rotating grate is burning, new garbage is continuously put in to cover the burning garbage and extinguish the flame, resulting in incomplete combustion of the garbage.

[0031] The present invention drives each fixed plate to move upward through the driving device, so that the top fixed plate can seal the garbage outlet, and at the same time the rake teeth are away from the rotating grate, so that the garbage on the rotating grate is burned; after the driving device drives each fixed plate to move downward, the garbage can fall from the garbage outlet, and during the rotation of the rotating grate, the rake teeth can break up the garbage, which is conducive to the downward fall of smaller garbage and the downward fall of furnace ash.

[0032] The present invention provides a cutter on the rotating shaft and positions the cutter within the temporary storage barrel, thereby shredding the garbage stored therein, facilitating subsequent combustion of the garbage and distributing the garbage across different rotating grates. High-temperature flue gas is introduced into the rotating shaft through an air hood and then into the temporary storage barrel through the air outlet holes on the cutter, preheating the garbage stored therein and facilitating subsequent combustion of the garbage.

[0033] The present invention can realize that the rotating shaft drives the rotating grate to rotate and the cutter shreds the garbage through a power device, so that the use cost is reduced.

[0034] Other advantages, objectives and features of the present invention will be reflected in part from the following description and will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] FIG1 is a schematic structural diagram of a waste incinerator according to an embodiment of the present invention;

[0036] FIG2 is a schematic structural diagram of a rotary grate according to an embodiment of the present invention. DETAILED DESCRIPTION

[0037] The present invention will be described in further detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0038] It should be noted that, in the description of the present invention, the terms "horizontal", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] As shown in FIG1 and FIG2 , the present invention provides a waste incinerator, comprising:

[0040] The furnace body 100 is cylindrical, and a first smoke outlet 101 and a garbage inlet 102 are provided at the top of the furnace body 100;

[0041] Multiple rotary grates 110 are vertically spaced apart within the furnace body 100. Multiple partitions 111 are spaced apart on the top of each rotary grate 110. Each partition 111 is cylindrical and coaxially arranged with the furnace body 100. The partitions 111 on the topmost rotary grate 110 gradually increase in height from the inside to the outside, and the gaps on the multiple rotary grates 110 gradually decrease in size from top to bottom. The area within the innermost partition of each rotary grate and the area between two adjacent partitions form a garbage storage area.

[0042] The rotating shaft 120 is coaxially arranged with the furnace body 100 and passes through each rotating grate 110 and is fixedly connected to each rotating grate 110 so that each rotating grate 110 can rotate with the rotating shaft 120;

[0043] A power device is provided on the top of the furnace body 100 and connected to the top of the rotating shaft 120 to drive the rotating shaft 120 to rotate;

[0044] The temporary storage barrel 130 is fixed in the furnace body 100 and is located above each partition 111 on the topmost rotating grate 110, and is separated from each partition 111 on the topmost rotating grate 110 by a certain distance. A garbage outlet is provided at the bottom of the temporary storage barrel 130, and the garbage outlet is opposite to the inside of the innermost partition 111 on the topmost rotating grate 110, so that after the garbage outlet is opened, the garbage first falls into the innermost partition 111 on the topmost rotating grate 110. The garbage outlet is provided with a component for opening and sealing the garbage outlet; the garbage inlet 102 is connected to the interior of the temporary storage barrel 130, and the first flue gas outlet 101 is connected to the part of the furnace body 100 located outside the temporary storage barrel 130.

[0045] The waste incinerator provided by this solution is used. When the waste outlet is closed, the power device drives each rotating grate 110 to rotate, and then the waste is introduced into the temporary storage barrel 130 through the waste inlet 102. When the amount of waste reaches a preset amount or the time for introducing the waste reaches a preset time, the waste outlet is opened, and the waste falls onto the top rotating grate 110 and is located in the innermost partition 111. When the accumulation height of the waste in the innermost partition 111 reaches the height of the top of the innermost partition 111, the subsequent falling waste is thrown outwards under the action of centrifugal force and is placed in the second block from the inside to the outside. Under the action of the partition 111, the garbage is blocked between the second partition 111 from the inside to the outside and the innermost partition 111, and moves downward under the action of gravity. After the accumulation height of the garbage in the second partition 111 from the inside to the outside reaches the height of the top of the second partition 111 from the inside to the outside, the subsequent garbage is thrown out under the action of centrifugal force. Under the action of the third partition 111 from the inside to the outside, the garbage is blocked between the third partition 111 from the inside to the outside and the second partition 111 from the inside to the outside, and moves downward under the action of gravity. Then, the same process is repeated until garbage is accumulated in each partition 111.

[0046] Because the garbage outlet remains stationary while the rotary grate 110 rotates, the garbage falls to different locations within the partitions 111 on the topmost rotary grate 110. Smaller garbage then falls onto the lower, multi-stage rotary grates 110. Because the lower, multi-stage rotary grates 110 are also equipped with partitions 111, the garbage on these layers is prevented from concentrating at the edges of the rotary grates 110. This ensures that the garbage on each rotary grate 110 is evenly distributed, thereby improving the utilization rate of the rotary grates 110. After the garbage outlet remains open for a certain period of time, it is closed, allowing the garbage on the rotary grate 110 to burn, and the resulting smoke is discharged through the first smoke outlet 101.

[0047] The provision of the temporary storage barrels 130 allows the garbage to be distributed in sections to the various rotating grates 110. This prevents new garbage from being added to the rotating grates 110 while the garbage is burning, covering the burning garbage and extinguishing the flames, resulting in incomplete combustion. The temporary storage barrels 130 are placed within the furnace body 100, where the temperature is relatively high, and can preheat the garbage in the temporary storage barrels 130.

[0048] In another embodiment, in the waste incinerator, each rotating grate 110 is circular, and the center of each rotating grate 110 is on the axis of the furnace body 100 .

[0049] In another embodiment, in the waste incinerator, a plurality of cutters 121 are provided on the rotating shaft 120 , and the plurality of cutters 121 are all located in the temporary storage tube 130 .

[0050] By arranging a cutter 121 on the rotating shaft 120 and positioning the cutter 121 in the temporary storage barrel 130 , the garbage temporarily stored in the temporary storage barrel 130 can be chopped up, which is beneficial for the subsequent combustion of the garbage and the distribution of the chopped garbage on different rotating grates 110 .

[0051] In another embodiment, in the waste incinerator, a second flue gas outlet 103 is further provided on the top of the furnace body 100, and the second flue gas outlet 103 is communicated with the interior of the temporary storage tube 130. The interior of the rotating shaft 120 is hollow and the bottom is open. An air hood 122 is provided at the bottom of the rotating shaft 120, and the interior of the air hood 122 is communicated with the interior of the rotating shaft 120. The interior of each cutter 121 is hollow and communicated with the interior of the rotating shaft 120, and each cutter 121 is provided with a plurality of air outlet holes at intervals.

[0052] The high-temperature flue gas is introduced into the rotating shaft 120 through the air hood 122 and then enters the temporary storage barrel 130 through the air outlet on the cutter 121, which can further preheat the garbage temporarily stored in the temporary storage barrel 130, which is beneficial to the subsequent combustion of the garbage.

[0053] In another embodiment, in the waste incinerator, a plurality of air outlet holes are arranged at intervals on the bottom of each cutter 121 .

[0054] In another embodiment, in the waste incinerator, except for the rotating grate 110 at the top, the tops of the partitions 111 on the other rotating grates 110 are at the same height.

[0055] In another embodiment, in the waste incinerator, a trough is provided on the side wall of the furnace body 100, and the trough extends in the vertical direction;

[0056] The waste incinerator also includes:

[0057] Multiple disintegration parts, one of which is provided above each rotating grate 110. Each disintegration part comprises a fixed plate 140 and a plurality of rake teeth 141, which are spaced apart at the bottom of the fixed plate 140 along the radial direction of the rotating grate 110; each garbage storage area is opposite to at least one rake tooth 141;

[0058] A connecting rod 150 is vertically arranged and located in the tank body, and the connecting rod 150 is fixedly connected to each fixing plate 140;

[0059] The driving device is connected to the topmost fixed plate 140 and is used to drive the topmost fixed plate 140 to move upward to seal the garbage outlet and move downward to open the garbage outlet; when the topmost fixed plate 140 seals the garbage outlet, each rake tooth 141 is located above the corresponding garbage storage area; when the topmost fixed plate 140 opens the garbage outlet, each rake tooth 141 moves to the corresponding garbage storage area and is separated from the top of the rotating grate 110 located below it by a certain distance.

[0060] After the fixed plates 140 are driven upward by the driving device, the topmost fixed plate 140 can seal the garbage outlet, and at the same time, the rake teeth 141 are away from the rotating grate 110, so that the garbage on the rotating grate 110 is burned; after the fixed plates 140 are driven downward by the driving device, the garbage can fall from the garbage outlet. During the rotation of the rotating grate 110, the rake teeth 141 can break up the garbage, which is conducive to the falling of smaller garbage and the falling of ash.

[0061] In another embodiment, in the waste incinerator, the furnace body 100 is provided with an air vent;

[0062] The waste incinerator also includes:

[0063] A bottom grate 160 is provided below the bottommost rotating grate 110 , and the tuyere is located below the bottom grate 160 ;

[0064] Two ignition guns 170 are disposed inside the furnace body 100 and are located between the bottommost rotating grate 110 and the bottom grate 160 , and are close to the bottommost rotating grate 110 and the bottom grate 160 , respectively.

[0065] Combustion gas is supplied to the furnace body 100 through tuyeres, and two ignition guns 170 ignite the small pieces of waste on the bottommost rotary grate 110 and the bottom grate 160, respectively, for incineration. Hot flue gas from the burning waste on the bottommost rotary grate 110 rises, sequentially igniting the waste on the rotary grates 110 above it.

[0066] In another embodiment, in the waste incinerator, the temporary storage tube 130 is fixed on the top of the furnace body 100 .

[0067] In another embodiment, in the waste incinerator, the driving device is fixed on the top of the furnace body 100 .

[0068] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. Waste incinerator, characterized in that, Comprising: A furnace body, which is cylindrical in shape, and a first flue gas outlet and a garbage inlet are provided at the top of the furnace body; Multiple rotating grates, which are arranged at intervals in the furnace body in the vertical direction. Multiple partitions are arranged at intervals on the top of each rotating grate. Each partition is cylindrical in shape and is coaxially arranged with the furnace body. The heights of the partitions on the topmost rotating grate gradually increase from the inside to the outside, and the gaps between the multiple rotating grates gradually decrease from top to bottom; in the area inside the innermost partition on each rotating grate and between two adjacent partitions, a garbage placement area is respectively formed; A rotating shaft, which is coaxially arranged with the furnace body, passes through each rotating grate, and is fixedly connected to each rotating grate, so that each rotating grate can rotate with the rotating shaft; A power device, which is arranged at the top of the furnace body and is connected to the top of the rotating shaft for driving the rotating shaft to rotate; A temporary storage cylinder, which is fixed in the furnace body and is located above the partitions on the topmost rotating grate. A garbage outlet is provided at the bottom of the temporary storage cylinder, and the garbage outlet faces the inside of the innermost partition on the topmost rotating grate. A component for opening and closing the garbage outlet is provided at the garbage outlet; the garbage inlet is communicated with the inside of the temporary storage cylinder, and the first flue gas outlet is communicated with the part of the furnace body outside the temporary storage cylinder.

2. The waste incinerator according to claim 1, characterized in that, Each rotating grate is circular, and the centers of each rotating grate are all on the axis of the furnace body.

3. The waste incinerator according to claim 2, wherein Multiple cutting knives are arranged on the rotating shaft, and the multiple cutting knives are all located inside the temporary storage cylinder.

4. The waste incinerator according to claim 3, characterized in that, A second flue gas outlet is further provided at the top of the furnace body, and the second flue gas outlet is communicated with the inside of the temporary storage cylinder. The inside of the rotating shaft is hollow and the bottom is open. An air hood is provided at the bottom of the rotating shaft, and the inside of the air hood is communicated with the inside of the rotating shaft. The inside of each cutting knife is hollow and is communicated with the inside of the rotating shaft. Multiple air outlet holes are arranged at intervals on each cutting knife.

5. The waste incinerator according to claim 4, characterized in that, Multiple air outlet holes are arranged at intervals at the bottom of each cutting knife.

6. The waste incinerator according to claim 1, wherein Except for the topmost rotating grate, the heights of the tops of the partitions on other rotating grates are the same.

7. The waste incinerator according to claim 2, characterized in that, A groove body is provided on the side wall of the furnace body, and the groove body extends in the vertical direction; The garbage incinerator further comprises: Multiple dispersing parts, and one dispersing part is provided above each rotating grate. For any one dispersing part, it includes a fixing plate and multiple rake teeth, and the multiple rake teeth are arranged at intervals in the radial direction of the rotating grate at the bottom of the fixing plate; each garbage placement area is opposite to at least one rake tooth; A connecting rod, which is vertically arranged and is located inside the groove body, and the connecting rod is fixedly connected to each fixing plate; A driving device, which is connected to the topmost fixing plate for driving the topmost fixing plate to move upward to seal the garbage outlet and move downward to open the garbage outlet; when the topmost fixing plate seals the garbage outlet, each rake tooth is located above its corresponding garbage placement area; when the topmost fixing plate opens the garbage outlet, each rake tooth moves to its corresponding garbage placement area and is separated from the top of the rotating grate below it by a certain distance.

8. The waste incinerator according to claim 7, characterized in that, An air inlet is provided on the furnace body; The garbage incinerator further comprises: The bottom grate is arranged below the rotating grate at the bottommost part, and the tuyere is located below the bottom grate. Two igniters are arranged inside the furnace body, between the rotating grate at the bottommost part and the bottom grate, and are respectively close to the rotating grate at the bottommost part and the bottom grate.

9. The waste incinerator according to claim 1, characterized in that, The temporary storage cylinder is fixed at the top of the furnace body.

10. The waste incinerator according to claim 7, characterized in that, The driving device is fixed at the top of the furnace body.

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