Waste incinerator swing feeding device and feeding method

Abstract

The present invention relates to a waste incineration device, in particular to a swing feeding device and a feeding method for a waste incinerator, which includes a bracket, a hopper, and a hopper pushing device. The upper end of the hopper is connected to the bracket. The angle α between the plane where the hopper is located and the horizontal plane is 0° < α < 90°. The hopper is adapted to rotate relative to the bracket. The hopper pushing device is connected to the hopper, and the hopper pushing device drives the hopper to swing in a plane at an angle α with the horizontal plane. The hopper pushing device includes a first driving wheel, a first track, a driving component, a second driving wheel, and a second track. The driving component drives the first driving wheel to move to both sides relative to the first track, thereby driving the hopper to swing. The driving component drives the second driving wheel to drive the second track to move to both sides, thereby causing the hopper to swing. The present invention can make the cloth feeding of the waste incineration device more uniform and increase the feeding width.

Description

Technical Field

[0001] The invention relates to garbage incineration equipment, in particular to a swing feeding device and a feeding method for a garbage incinerator. Background Art

[0002] During the combustion process, the waste incinerator must frequently observe the combustion conditions in the furnace and control the thickness of the material layer in the furnace, which requires that the waste be evenly distributed when feeding. If the feeding is too concentrated, it is easy for the waste to agglomerate, burn incompletely, and burn unevenly, which greatly reduces the combustion effect, greatly reduces the resource utilization and reduction effect of biochemical waste, and even has an adverse effect on the combustion conditions of the entire waste incineration system. In addition, in actual applications, since grate waste incinerators have more advantages than fluidized bed waste incinerators, many fluidized bed waste incinerators need to be transformed into grate furnaces, and the transformation of the feeding system is an important part of it. Uniform feeding is an important prerequisite for stable incineration, so it is necessary to improve the centralized feeding of waste incinerators. Summary of the invention

[0003] The object of the present invention is to provide a swing feeding device and a feeding method for a garbage incinerator with more uniform material distribution and increased feeding width.

[0004] To achieve the above-mentioned purpose, the present invention provides a swing feeding device for a waste incinerator, comprising a bracket, a hopper, and a hopper pushing device. The upper end of the hopper is connected to the bracket, and the angle α between the plane where the hopper is located and the horizontal plane is 0°<α<90°. The hopper is suitable for rotating relative to the bracket. The hopper pushing device is connected to the hopper, and the hopper pushing device drives the hopper to swing in a plane that forms an angle α with the horizontal plane.

[0005] Furthermore, the hopper pushing device includes a first driving wheel, a first track, and a driving assembly. The first track is arc-shaped, the first driving wheel is arranged on the first track, the first driving wheel is connected to the driving assembly, and the driving assembly drives the first driving wheel to move to both sides relative to the first track, thereby driving the hopper to swing.

[0006] Furthermore, it also includes multiple groups of first guide components, the first guide components include a first guide wheel, a first guide wheel shaft, and a first guide wheel bracket, the first guide wheel shaft is connected to the first guide wheel bracket, the first guide wheel is rotatably connected to the first guide wheel shaft, the first guide wheel abuts against the side of the first track, the first guide wheel bracket is connected to the hopper, and the multiple groups of first guide components are evenly arranged along the arc of the first track.

[0007] Furthermore, first position sensors are respectively disposed at both ends of the first track.

[0008] Further, the hopper pushing device includes a second driving wheel, a second track, and a driving component. The second track is an arc-shaped rack track, the second driving wheel is a gear, the second driving wheel meshes with the second track, the second track is connected to the hopper, the driving component is connected to the second driving wheel, and the driving component drives the second driving wheel to move left and right so that the second track drives the hopper to swing left and right.

[0009] Further, it further includes multiple groups of second guiding components. The second guiding components include second guiding wheels, second guiding wheel shafts, and second guiding wheel brackets. The second guiding wheel shafts are connected to the second guiding wheel brackets, the second guiding wheels are rotatably connected to the second guiding wheel shafts, the second guiding wheels abut against the side edges of the second track, the second guiding wheel brackets are connected to the brackets, and the multiple groups of second guiding components are evenly arranged along the arc formed by the second track.

[0010] Further, second position sensors are respectively arranged at both ends of the second track.

[0011] Further, the driving component includes a servo motor and a reducer. The output end of the servo motor is connected to the reducer, and the output end of the reducer is connected to the first driving wheel or the second driving wheel.

[0012] Further, it further includes a first connecting rod and a pedestal bearing. The pedestal bearing is connected to the bracket, one end of the first connecting rod is connected to the hopper, and the other end is connected to the pedestal bearing.

[0013] The present invention adopts the feeding method of the above-mentioned swing feeding device for a waste incinerator, including the following steps:

[0014] Set the set material level line of the predetermined feeding channel, divide the feeding channel into n channel segments along the width direction, each segment has a length L1, obtain the material level in each channel segment in real time, generate the real-time material level line of the feeding channel, compare the real-time material level line with the set material level line, and obtain N groups of height differences ΔH between the real-time material level line and the set material level line.

[0015] Set the normal operating speed of the servo motor as V, the average operating speed of each channel segment L1 as V′, the lateral cross-sectional width as W, and set the correlation coefficient K between V and V′. The coefficient K is deduced through three parameters: ΔH, W, and L1.

[0016] When ΔH < 0, V′ = V / K(ΔH, W, L1), and V′ is inversely proportional to the absolute value of ΔH.

[0017] When ΔH = 0, V′ = V / K(ΔH, W, L1), ΔH = 0, and the K value is equal to 1.

[0018] When ΔH > 0, V′ = V * K(ΔH, W, L1), and V′ is directly proportional to ΔH.

[0019] By the value of ΔH, the running speed of the servo motor is adjusted, thereby adjusting the swinging speed of the hopper. When the material level in the feeding channel is high, the swinging speed of the hopper is fast; when the material level in the feeding channel is low, the swinging speed of the hopper is slow. Then, the material level in each channel section is obtained again to generate a new real-time material level line, and the above process is repeated until uniform feeding is achieved when ΔH = 0.

[0020] Furthermore, the situation of the material in the feeding channel is obtained in real time by the camera system and fed back to the monitoring display screen. Through image recognition and analysis technology, the material level in each channel section is obtained in real time.

[0021] Compared with the prior art, the swinging feeding device of the waste incinerator of the present invention has at least the following beneficial effects: In the swinging feeding device of the waste incinerator of the present invention, since the hopper pushing device can drive the hopper to swing in a plane at an angle α with the horizontal plane, the waste filled into the incinerator through the hopper is more evenly distributed, avoiding the occurrence of situations such as waste agglomeration and incomplete combustion caused by the over-concentration of waste in the incinerator. And through the swinging of the hopper, a horizontal displacement is generated at the outlet of the hopper, increasing the feeding width.

[0022] The swinging feeding device and feeding method of the waste incinerator of the present invention will be specifically described below with reference to the accompanying drawings. Description of the Drawings

[0023] Figure 1 It is a schematic side view structure diagram of the first embodiment of the swinging feeding device of the waste incinerator of the present invention;

[0024] Figure 2 It is an operation schematic diagram of the first embodiment of the swinging feeding device of the waste incinerator of the present invention;

[0025] Figure 3 It is a schematic structure diagram of the first driving wheel, the first track, and the first guiding component in the first embodiment of the swinging feeding device of the waste incinerator of the present invention;

[0026] Figure 4 It is a schematic structure diagram of the first guiding component in the first embodiment of the swinging feeding device of the waste incinerator of the present invention;

[0027] Figure 5 It is a schematic side view structure diagram of the second embodiment of the swinging feeding device of the waste incinerator of the present invention;

[0028] Figure 6Schematic diagram of the operation of the second embodiment of the swing feeding device of the garbage incinerator of the present invention;

[0029] Figure 7 Schematic diagram of the structure of the second driving wheel, the second track, and the second guiding component in the second embodiment of the swing feeding device of the garbage incinerator of the present invention;

[0030] Figure 8 Comparison diagram of the real-time material level line and the set material level line in the feeding channel in the feeding method using the above swing feeding device of the garbage incinerator of the present invention.

[0031] Figure 9 Logic diagram of the feeding method using the above swing feeding device of the garbage incinerator of the present invention. Detailed implementation manners

[0032] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 shown, in the first embodiment of a swing feeding device for a garbage incinerator of the present invention, it includes a bracket 01, a hopper 02, and a hopper pushing device. The hopper 02 has an open structure that is larger at the top and smaller at the bottom, and is placed below the feeding and conveying equipment 06 and above the feeding channel 07. The upper end of the hopper 02 is connected to the bracket 01. The angle α between the plane where the hopper 02 is located and the horizontal plane is 0° < α < 90°, which is convenient for material dropping. The hopper 02 is adapted to rotate relative to the bracket 01. The hopper pushing device is connected to the hopper 02, and the hopper pushing device drives the hopper 02 to swing in a plane at an angle α with the horizontal plane. The swing angle range is between 0° and 90°. The width of the discharge port of the hopper 02 is B1, the concentrated material dropping width, and the swing range is B2, the distributed material dropping width. In a swing feeding device for a garbage incinerator of the present invention, since the hopper pushing device can drive the hopper 02 to swing in a plane at an angle α with the horizontal plane, the garbage filled into the incinerator through the hopper 02 is more evenly distributed, avoiding situations such as garbage caking and incomplete combustion caused by excessive concentration of garbage in the incinerator. And through the swing of the hopper 02, a horizontal displacement is generated at the outlet of the hopper 02, increasing the width of feeding.

[0033] Optionally, the hopper pushing device includes a first driving wheel 31, a first track 32, and a driving component 33. The first track 32 is arc-shaped and is fixed in position. The driving component 33 is connected to the bracket 01. The first driving wheel 31 is arranged on the first track 32, and the first driving wheel 31 is connected to the driving component 33. The driving component 33 drives the first driving wheel 31 to move relative to the first track 32 to both sides, thereby driving the hopper 02 to swing. When the load on the first track 32 is large and the requirement for uniform material distribution is not high, the material distribution can meet the requirement of uniform material distribution in the garbage incinerator by driving the hopper 02 to swing by moving the first driving wheel 31 relative to the first track 32 left and right.

[0034] Optionally, the driving assembly 33 includes a servo motor 331, a speed reducer 332, and a driving shaft 333. The output end of the servo motor 331 is connected to the speed reducer 332, and the output end of the speed reducer 332 is connected to the first driving wheel 31 through the driving shaft 333. The servo motor 331 rotates forward and backward, driving the first driving wheel 31 to move left and right relative to the first track 32, thereby driving the hopper 02 to swing.

[0035] Optionally, first position sensors 321 are provided at both ends of the first track 32 to prevent the first driving wheel 31 from running out of the first track 32.

[0036] Optionally, a first guiding assembly 04 is further included. Multiple groups of the first guiding assemblies 04 are provided. The first guiding assembly 04 includes a first guiding wheel 41, a first guiding wheel shaft 42, and a first guiding wheel bracket 43. The first guiding wheel bracket 43 is connected to the hopper 01, the first guiding wheel shaft 42 is connected to the first guiding wheel bracket 43, the first guiding wheel 41 is rotatably connected to the first guiding wheel shaft 42, and the first guiding wheel 41 abuts against the side of the first track 32 to prevent the first track 32 from shifting to one side and causing the first driving wheel 31 to derail. The multiple groups of first guiding assemblies 04 are evenly arranged along the arc formed by the first track 32, and the first guiding assembly 04 swings synchronously with the hopper 01.

[0037] Optionally, a first connecting rod 21 and a pedestal bearing 11 are further included. The pedestal bearing 11 is connected to the bracket 01. One end of the first connecting rod 21 is connected to the hopper 02, and the other end is connected to the pedestal bearing 11, enabling the hopper 02 to rotate relative to the bracket 01.

[0038] Optionally, a second connecting rod 22 is further included. One end of the second connecting rod 22 is connected to the hopper 02, and the other end is connected to the first driving wheel 31. The first driving wheel 31 is connected to the hopper 02 through the second connecting rod 22.

[0039] Such as Figure 5 、 Figure 6 、 Figure 7As shown in the figure, in the second embodiment of the swing feeding device of a waste incinerator according to the present invention, the difference from the first embodiment is that it includes a second driving wheel 34 and a second track 35. The second track 35 is an arc-shaped rack track, and the second driving wheel 34 is a gear. The second driving wheel 34 meshes with the second track 35. The second track 35 is connected to the hopper 02, and the driving assembly 33 is connected to the second driving wheel 34. The driving assembly 33 drives the second driving wheel 34 to move left and right, so that the second track 35 drives the hopper 02 to swing left and right. The servo motor 331 rotates forward and backward, driving the second driving wheel 34 to rotate forward and backward. The second track 35 swings left and right driven by the second driving wheel 34, driving the hopper 02 to swing. Driving the hopper 02 to swing by driving the second track 35 to move by the second driving wheel 34 can accurately control the swing angle of the hopper 02 and meet the situation where the waste incinerator has higher requirements for the uniformity of cloth feeding.

[0040] Optionally, second position sensors 351 are provided at both ends of the second track 35 to prevent the second driving wheel 34 from running out of the second track 35.

[0041] Optionally, it further includes a second guiding assembly 05. Multiple groups of second guiding assemblies 05 are provided. The second guiding assembly 05 includes a second guiding wheel 51, a second guiding wheel shaft 52, and a second guiding wheel bracket 53. The second guiding wheel shaft 52 is connected to the second guiding wheel bracket 53, and the second guiding wheel bracket 53 is connected to the bracket 01. The second guiding wheel 51 abuts against the side of the second track 35 to prevent the second track 35 from shifting to one side and causing the second driving wheel 34 to derail. Multiple groups of second guiding assemblies 05 are evenly arranged along the arc formed by the second track 35.

[0042] Optionally, it further includes a third connecting rod 23. One end of the third connecting rod 23 is connected to the hopper 02, and the other end is connected to the second track 35. The second track 35 is connected to the hopper 02 through the third connecting rod 23.

[0043] The feeding method of the present invention using the above-mentioned swing feeding device of a waste incinerator is as Figure 8 、 Figure 9 shown, and includes the following steps:

[0044] Set the set material level line 72 of the predetermined feeding channel 07. The material level line 72 is a horizontal line. Divide the feeding channel 07 into n channel segments along the width direction, each segment with a length L1. During the transportation of waste incineration materials, obtain the material level in each channel segment in real time, generate the real-time material level line 71 of the feeding channel 07, and compare the real-time material level line 71 with the set material level line 72 to obtain N groups of height differences ΔH between the real-time material level line 71 and the set material level line 72.

[0045] According to the incineration amount of the incineration line, the normal operating speed of the servo motor 331 is set to V, the average operating speed of each channel segment L1 is V′, the lateral cross-sectional width is W, and the correlation coefficient K between V and V′ is set. The coefficient K is deduced through three parameters: ΔH, W, and L1.

[0046] When ΔH < 0, V′ = V / K(ΔH, W, L1). V′ is inversely proportional to the absolute value of ΔH. The larger the absolute value of ΔH, the smaller V′.

[0047] When ΔH = 0, V′ = V / K(ΔH, W, L1). When ΔH = 0, the K value is equal to 1, and the servo motor 331 operates at speed V.

[0048] When ΔH > 0, V′ = V * K(ΔH, W, L1). V′ is directly proportional to ΔH. The larger the value of ΔH, the larger V′.

[0049] By the value of ΔH, the operating speed of the servo motor 331 is adjusted, thereby adjusting the swinging speed of the hopper 02. When the material level in the feeding channel 07 is high, the swinging speed of the hopper 02 is fast; when the material level in the feeding channel 07 is low, the swinging speed of the hopper 02 is slow. Then, the material level in each channel segment is obtained again to generate a new real-time material level line 71. The above process is repeated until uniform feeding is achieved when ΔH = 0.

[0050] Optionally, in the above method, the situation of the material in the feeding channel 07 is obtained in real time through the camera system 08 and fed back to the monitoring display screen. Through image recognition and analysis technology, the material level in each channel segment is obtained in real time.

[0051] The above-described embodiments are only descriptions of the preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A feeding method for a swing feeding device of a waste incinerator. The swing feeding device of the waste incinerator includes a bracket (01), a hopper (02), and a hopper pushing device. The upper end of the hopper (02) is connected to the bracket (01). The angle α between the plane where the hopper (02) is located and the horizontal plane is 0° < α < 90°. The hopper (02) is adapted to rotate relative to the bracket (01). The hopper pushing device is connected to the hopper (02). The hopper pushing device drives the hopper (02) to swing in a plane at an angle α with the horizontal plane. The hopper pushing device includes a first driving wheel (31), a first track (32), and a driving component (33). The first track (32) is arc-shaped. The first driving wheel (31) is arranged on the first track (32). The first driving wheel (31) is connected to the driving component (33). The driving component (33) drives the first driving wheel (31) to move to both sides relative to the first track (32), thereby driving the hopper (02) to swing. The driving component (33) includes a servo motor (331) and a reducer (332). The output end of the servo motor (331) is connected to the reducer (332). The output end of the reducer (332) is connected to the first driving wheel (31). It is characterized in that: It includes the following steps: Set the set material level line (72) of the predetermined feeding channel (07). Divide the feeding channel (07) into n channel segments along the width direction, with each segment having a length L1. Obtain the material level in each channel segment in real time, generate the real-time material level line (71) of the feeding channel (07), compare the real-time material level line (71) with the set material level line (72), and obtain N groups of height differences ΔH between the real-time material level line (71) and the set material level line (72). Set the normal operating speed of the servo motor (331) as V, the average operating speed of each channel segment L1 as V´, and the lateral cross-sectional width as W. Set the correlation coefficient K between V and V´. The coefficient K is deduced through three parameters: ΔH, W, and L1. When ΔH < 0, V´ = V / K(ΔH, W, L1), and V´ is inversely proportional to the absolute value of ΔH. When ΔH = 0, V´ = V / K(ΔH, W, L1), ΔH = 0, and the K value is equal to 1. When ΔH > 0, V´ = V*K(ΔH, W, L1), and V´ is proportional to ΔH. Adjust the operating speed of the servo motor (331) through the value of ΔH, thereby adjusting the swinging speed of the hopper (02). When the material level in the feeding channel (07) is high, the swinging speed of the hopper (02) is fast. When the material level in the feeding channel (07) is low, the swinging speed of the hopper (02) is slow. Then, obtain the material level in each channel segment again, generate a new real-time material level line (71), and repeat the above process until uniform feeding is achieved when ΔH = 0.

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