High-efficiency overturning combustion furnace

Abstract

The utility model relates to the field of industrial furnace and heat energy engineering discloses a kind of efficient turnover combustion furnace, including shell, feed inlet, combustion platform, dust removal port and motor, cleaning mechanism is equipped in shell, it includes connecting rod, rotating column, sliding rod, fixed plate and conveying assembly, when working, motor drives cleaning box to drive connecting rod rotation, connecting rod is connected with rotating column in sliding rod cooperation, orientation restriction by limiting block, convert rotary motion into fixed plate and the reciprocating linear motion of conveyer belt along combustion platform, to clean dust generated by combustion to dust removal port, furthermore, shell outer wall is equipped with buckle mechanism, drive limit plate radial sliding by rotating handle and drive limit plate radial sliding with disc cooperation, to lock or release combustion platform. The utility model realizes automatic dust cleaning and material turning over by cleaning mechanism, effectively prevent blockage and guarantee smooth air intake, improve combustion efficiency.

Description

Technical Field

[0001] This utility model relates to the field of industrial furnaces and thermal energy engineering, and in particular to a high-efficiency rotating combustion furnace. Background Technology

[0002] Combustion furnaces, as common industrial equipment, are widely used in solid waste treatment, biomass energy utilization, and heating. Their core working principle involves placing the material to be treated on an internal combustion platform, where ignition and continuous oxygen supply induce an oxidation reaction, thereby achieving volume reduction or heat recovery. The combustion platform, as the key area supporting the material reaction, directly determines the efficiency and stability of combustion based on the permeability and cleanliness of its surface.

[0003] However, in existing combustion furnace technologies, the combustion platform typically employs a fixed structure or a simple grid structure. During continuous combustion, ash, slag, and unburned residues gradually accumulate on the platform surface. This accumulation forms a dense barrier layer that not only covers the underlying material to be burned, hindering flame propagation, but more seriously, it clogs ventilation openings on the combustion platform or obstructs the flow of combustion air.

[0004] As the ash layer thickens, the amount of oxygen entering the core combustion area decreases significantly, leading to a localized oxygen-deficient environment within the furnace. This not only causes incomplete combustion and a sharp drop in thermal efficiency but may also pose safety hazards such as backfire due to poor flue gas exhaust. Currently, the main method for maintaining normal equipment operation is periodic shutdowns for manual cleaning. However, this increases the labor intensity and safety risks for workers and also causes equipment downtime, failing to meet the demands for continuous and efficient production. Existing combustion equipment generally lacks a cleaning mechanism that can operate stably in high-temperature environments and automatically and effectively push, sweep, and turn over the ash accumulated on the platform surface.

[0005] Therefore, this utility model proposes a high-efficiency rotating combustion furnace to overcome the shortcomings of the prior art. Summary of the Invention

[0006] To overcome the above shortcomings, this utility model provides a high-efficiency rotating combustion furnace, which aims to improve the problem that in some existing combustion furnaces, ash and impurities tend to accumulate on the combustion platform during continuous operation, leading to blockage of the air inlet.

[0007] This utility model provides a high-efficiency rotating combustion furnace, comprising: a shell, a feed inlet, a combustion platform, an ash removal inlet, and a motor; and a cleaning mechanism located inside the shell. The cleaning mechanism is characterized by converting rotational driving force into reciprocating linear cleaning motion. The cleaning mechanism includes a connecting rod, a rotating column, a sliding rod, a fixed plate, a limiting block, a conveying assembly, and a cleaning box; the conveying assembly includes a conveyor belt. Furthermore, the housing, the motor, and the cleaning mechanism are combined in the following manner: the feed inlet is located on the outer wall of the housing, the combustion platform is located inside the housing, and the ash removal port is opened at the bottom of the housing; the motor is installed outside the housing, and the motor drive end passes through the side wall of the housing and is connected to the cleaning box in the cleaning mechanism; the cleaning box drives the connecting rod to rotate, and the end of the connecting rod away from the cleaning box is fixed to the rotating column; the rotating column is rotatably engaged in the sliding rod, and the side of the sliding rod is fixed to the fixing plate and drives the fixing plate to move; the limiting block is fixed to the inner wall of the housing and restricts the position of the fixing plate, so that the fixing plate slides in a limited direction; the fixing plate drives the conveyor belt in the conveying assembly fixed thereon to slide, and the bottom surface of the conveyor belt abuts against the surface of the combustion platform to sweep the ash generated by combustion to the opening of the ash removal port.

[0008] Preferably, it also includes a locking mechanism, which is disposed on the outer wall of the housing and connects the combustion platform to the housing, for realizing the quick locking and disassembly of the combustion platform; the locking mechanism includes a housing, a disc, a handle, an arc groove, a cylinder and a limiting plate.

[0009] Preferably, the handle is fixedly connected to the side of the disc, the disc is rotatably fitted to the outer wall of the outer shell, the disc has an eccentric spiral groove, and the cylinder is slidably fitted to the groove.

[0010] Preferably, the cylinder is fixedly connected to the limiting plate. When the cylinder moves at the arc groove, it can drive the limiting plate to slide radially. The limiting plate can fix the combustion platform inside the housing or release the combustion platform by sliding.

[0011] Preferably, an igniter is fixed to the side of the housing, and the igniter extends into the interior of the housing for automatic ignition of the material on the combustion platform.

[0012] Preferably, an observation port is fixed on the side of the shell, which is used to observe the combustion status inside the shell without opening the furnace door.

[0013] Preferably, the feed inlet is located above the outer wall of the shell, and the combustion platform is located below the feed inlet, so as to facilitate the material falling into the combustion zone under the action of gravity.

[0014] Preferably, the cleaning mechanism is located entirely inside the housing, and the cleaning box is directly connected to the motor drive end, thereby reducing transmission links and improving transmission efficiency.

[0015] This utility model has the following beneficial effects: 1. This utility model, by setting a cleaning mechanism driven by a motor inside the shell, and using a crank-slider transmission system composed of a connecting rod, rotating column, sliding rod and limiting block, converts the rotational motion of the motor into the reciprocating linear motion of the conveyor belt scraper on the surface of the combustion platform. Compared with traditional combustion furnaces, this rotating furnace burns more completely and is more efficient. Unlike traditional combustion furnaces, it does not produce a lot of smoke when adding new materials, and it does not cause flames to shoot out and burn people when adding materials.

[0016] This utility model solves the problems of complex fixing structure, difficult disassembly, and time-consuming and labor-intensive maintenance and replacement of traditional combustion platforms by setting a buckling mechanism on the outer wall of the housing and using an eccentric spiral-shaped arc groove on the surface of the disc to cooperate with the cylinder, thereby converting the rotation of the handle into the radial extension and retraction of the limiting plate. It achieves the technical effect of quickly locking or releasing the combustion platform without the need for complicated tools, greatly improving the convenience of equipment maintenance and repair efficiency.

[0017] This invention solves the problems of flame backlash during combustion and the difficulty in visually monitoring the combustion status without opening the furnace door by setting a gravity-resetting anti-backfire baffle at the feed inlet and setting a viewing port with high-temperature resistant transparent glass embedded in the side wall of the shell. It achieves the technical effect of effectively isolating the flame to ensure the safety of feeding while enabling real-time and clear observation of the combustion situation inside the furnace so as to make timely adjustments to the operation. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of a high-efficiency rotary combustion furnace proposed in this utility model; Figure 2 This is a schematic diagram of the shell structure of a high-efficiency rotary combustion furnace proposed in this utility model; Figure 3 This is a schematic diagram of the combustion platform of a high-efficiency rotary combustion furnace proposed in this utility model; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0019] Legend: 1. Shell; 2. Feed inlet; 3. Combustion platform; 4. Ash removal port; 5. Ignition device; 6. Motor; 7. Observation port; 8. Cleaning mechanism; 81. Connecting rod; 82. Rotating column; 83. Sliding rod; 84. Fixing plate; 85. Limiting block; 86. Conveying assembly; 861. Conveyor belt; 862. Cleaning box; 9. Buckling mechanism; 91. Outer shell; 92. Disc; 93. Handle; 94. Arc groove; 95. Cylinder; 96. Limiting plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: Reference Figures 1 to 5 This utility model provides a high-efficiency rotating combustion furnace, which aims to solve the structural defects of existing combustion furnaces, such as the easy accumulation of ash in the combustion platform 3 leading to poor air intake, difficulty in manual cleaning and maintenance, and the complex disassembly and assembly structure of the combustion platform 3 making it inconvenient to repair.

[0022] like Figure 1 and Figure 2 As shown, the furnace includes a shell 1, a feed inlet 2 located on the outer wall of the shell 1 for feeding materials, a combustion platform 3 horizontally mounted inside the shell 1 for supporting the combustion of materials, an ash removal port 4 located at the lowest point of the bottom of the shell 1 for discharging ash, and a motor 6 fixedly installed on the outer wall of the shell 1 as a power source. The shell 1 defines the internal combustion space. The feed inlet 2 connects to the interior of the shell 1 and is located above the combustion platform 3. The ash removal port 4 connects to the bottom of the interior of the shell 1. The combustion platform 3 allows for more complete combustion and higher efficiency. Unlike traditional furnaces, it does not produce a large amount of smoke when adding new materials, and there is no risk of flames shooting out and causing burns during material addition. The motor 6 is bolted to the outer wall of the side of the shell 1. The drive end of the motor 6 horizontally penetrates the side wall of the shell 1 and extends into the internal space. A backfire baffle is rotatably connected at the feed inlet 2 to prevent flames from escaping. An igniter 5 and an observation port 7 are fixedly connected to the side wall of the shell 1. The ignition end of the igniter 5 extends to the area above the combustion platform 3. The observation port 7 is equipped with high-temperature resistant transparent glass for observing the combustion status inside the furnace. It also includes a cleaning mechanism 8, which forms a specific transmission and connection relationship with the motor 6 and the combustion platform 3.

[0023] Reference Figure 3 and Figure 4 The cleaning mechanism 8 is located inside the housing 1. The cleaning mechanism 8 is mainly composed of a cleaning box 862, a connecting rod 81, a rotating column 82, a sliding rod 83, a fixed plate 84, a limiting block 85, and a conveying component 86. The motor 6 serves as the power source for the cleaning mechanism 8. The driving end of the motor 6 extends horizontally through the side wall of the housing 1 and into the interior, where it is fixedly connected to the outer wall of the cleaning box 862. The cleaning box 862 serves as the power input component, driving the movement of subsequent components. One end of the connecting rod 81 is fixedly connected to the outer wall of the cleaning box 862 at an eccentric position, and the other end of the connecting rod 81 is fixedly connected to the rotating column 82. The connecting rod 81 moves in a circular motion around the axis of the motor 6 under the drive of the cleaning box 862.

[0024] The sliding rod 83 has an inner slot for the rotating column 82 to be inserted and fitted. The rotating column 82 is rotatably fitted inside the slot of the sliding rod 83. The rotating column 82 can rotate in the slot and slide relative to the slot along its length. The side wall of the sliding rod 83 is fixedly connected to the side wall of the fixed plate 84. The limiting block 85 is fixedly installed on the inner wall of the housing 1 by bolts. The limiting block 85 has a linear guide slot on the side facing the fixed plate 84. The fixed plate 84 is slidably fitted in the guide slot of the limiting block 85. The limiting block 85 uses the guide slot to restrict the degree of freedom of the fixed plate 84, forcing the fixed plate 84 to slide back and forth only along a limited linear direction, thus converting the circular motion of the connecting rod 81 into the reciprocating linear motion of the fixed plate 84.

[0025] The bottom of the fixed plate 84 is fixedly connected to the top of the conveying assembly 86. The conveying assembly 86 includes a conveyor belt 861 with an L-shaped plate structure. The side of the conveyor belt 861 is fixedly connected to the fixed plate 84 by screws. The bottom surface of the conveyor belt 861 is tightly attached to the upper surface of the combustion platform 3. The conveyor belt 861 is configured to slide back and forth in a straight line along the length of the combustion platform 3 with the fixed plate 84. During the sliding process, the conveyor belt 861 pushes the ash accumulated on the surface of the combustion platform 3 to the ash cleaning port 4 located at the bottom of the housing 1, realizing automated ash cleaning operation. The structural design of the cleaning mechanism 8 ensures that the surface of the combustion platform 3 is always kept clean, effectively preventing the air inlet from being blocked due to ash accumulation.

[0026] As a preferred embodiment, it also includes a latching mechanism 9 disposed on the outer wall of the housing 1. The latching mechanism 9 is assembled from a housing 91, a disc 92, a handle 93, a cylinder 95, and a limiting plate 96. The housing 91 is fixedly connected to the outer wall of the housing 1 by bolts and is positioned opposite the side edge of the combustion platform 3. The housing 91 is designed as a hollow annular cylindrical structure. An annular groove is provided on the inner circumferential wall of the housing 91. The outer circumferential wall of the disc 92 is slidably fitted into the annular groove of the housing 91. The disc 92 is restricted to rotating only relative to the housing 91 around its axis. The handle 93 is welded and fixed to the surface of the disc 92 facing away from the housing 1. The handle 93 is used to provide manual rotation torque.

[0027] The disc 92 has an arc groove 94 on the surface facing the housing 1. The arc groove 94 is distributed in an eccentric spiral involute shape. One end of the cylinder 95 is slidably embedded in the arc groove 94, and the other end of the cylinder 95 is vertically fixed to the side of the limiting plate 96. The corresponding position of the side wall of the housing 91 has a radial sliding hole for the limiting plate 96 to pass through. The limiting plate 96 is slidably fitted in the radial sliding hole of the housing 91. The end of the limiting plate 96 near the housing 1 extends through the side wall of the housing 1 and can press against the edge of the combustion platform 3. By rotating the handle 93, the disc 92 is driven to rotate. The disc 92 forces the cylinder 95 to move along the trajectory of the eccentric arc groove 94, thereby driving the limiting plate 96 to perform radial extension and retraction. When the limiting plate 96 extends, it presses against the combustion platform 3 to achieve locking. When the limiting plate 96 retracts, it releases the limitation on the combustion platform 3.

[0028] In another preferred embodiment, an igniter 5 is fixedly installed on the side wall of the housing 1 via a flange. The ignition probe of the igniter 5 extends through the side wall of the housing 1 to the area above the combustion platform 3. To facilitate safe observation of the internal combustion status, an observation port 7 is fixedly installed in the side wall of the housing 1. A transparent heat-resistant glass is embedded in the center of the observation port 7, and the transparent heat-resistant glass is fixed in the frame of the observation port 7 by a sealing ring. To prevent the flame from escaping through the feed channel during combustion, a feed inlet 2 is provided on the outer wall of the housing 1. The feed inlet 2 is located directly above the combustion platform 3. A backfire prevention baffle is rotatably connected inside the feed inlet 2. The backfire prevention baffle closes the feed inlet 2 channel by gravity under natural conditions and only opens in one direction under the action of the material's gravity.

[0029] The working principle of this utility model is as follows: When the high-efficiency rotary combustion furnace is in operation, the material is fed into the upper surface of the internal combustion platform 3 through the feed port 2 on the outer wall of the shell 1. The backfire prevention baffle at the feed port 2 automatically resets and closes the channel after the material passes through. The side wall igniter 5 is activated to ignite the material. The operator observes the internal combustion status through the transparent heat-resistant glass at the observation port 7. The ash produced by combustion accumulates on the surface of the combustion platform 3.

[0030] When the motor 6 is powered on, it drives the cleaning mechanism 8 to run. The drive end of the motor 6 drives the cleaning box 862 to rotate. The cleaning box 862 drives the connecting rod 81 to move in a circular motion around the axis of the motor 6. The connecting rod 81 pulls the rotating column 82 to rotate in the waist-shaped groove of the sliding rod 83 and slide along the groove. The movement of the rotating column 82 forces the sliding rod 83 and the fixed plate 84 to move. The limiting block 85 uses the guide groove to restrict the fixed plate 84 to move only in a straight line along the length of the combustion platform 3. The fixed plate 84 drives the bottom conveyor assembly 86 to move in a reciprocating straight line. The conveyor belt 861 slides close to the surface of the combustion platform 3. During the reciprocating motion, the conveyor belt 861 fully turns and pushes the material and ash accumulated on the combustion platform 3, turning the bottom ash to the surface and continuously pushing it to the bottom ash removal port 4 of the housing 1 for discharge. The cleaning mechanism 8 effectively prevents ash blockage and ensures smooth air intake by continuously turning and cleaning, thus improving combustion efficiency.

[0031] When the combustion platform 3 needs to be replaced or repaired, manually rotate the handle 93 of the buckle mechanism 9. The handle 93 drives the disc 92 to rotate inside the outer shell 91. When the eccentric spiral involute-shaped arc groove 94 on the surface of the disc 92 rotates, it forces the cylinder 95 to move radially. The cylinder 95 drives the limiting plate 96 to retract outward along the radial sliding hole of the outer shell 91. The limiting plate 96 disengages from the edge of the combustion platform 3 and is released from the locking state. After the replacement is completed, rotate the handle 93 in the opposite direction. The limiting plate 96 is forced to extend inward and press tightly against and fix the combustion platform 3, realizing the quick disassembly and assembly of the combustion platform 3.

Claims

1. A high-efficiency rotating combustion furnace, comprising a shell (1), a feed inlet (2), a combustion platform (3), an ash removal inlet (4), and a motor (6); The feed inlet (2) is located on the outer wall of the housing (1), the combustion platform (3) is located inside the housing (1), the ash removal port (4) is located at the bottom of the housing (1), and the motor (6) is located outside the housing (1). The motor (6) is used to connect and rotate the combustion platform (3). Its features are: It also includes a cleaning mechanism (8), which is located inside the housing (1). The drive end of the motor (6) extends into the housing (1) and connects to the cleaning mechanism (8). The cleaning mechanism (8) is used to sweep the dust generated by combustion to the opening of the ash removal port (4).

2. The high-efficiency rotating combustion furnace according to claim 1, characterized in that, The cleaning mechanism (8) includes a connecting rod (81), a rotating column (82), a sliding rod (83), a fixing plate (84), a limiting block (85), a conveying assembly (86), and a cleaning box (862). The conveying assembly (86) includes a conveyor belt (861); The motor (6) is connected to the cleaning box (862) and drives the connecting rod (81) to rotate. The connecting rod (81) is fixed to the rotating column (82) at the end away from the cleaning box (862). The rotating column (82) is rotatably engaged in the sliding rod (83). The sliding rod (83) is fixed to the fixing plate (84) on the side and drives the fixing plate (84) to move. The limiting block (85) restricts the position of the fixing plate (84) so ​​that the fixing plate (84) slides in a limited direction. The fixing plate (84) drives the conveyor belt (861) fixed thereon to slide and clean.

3. The high-efficiency rotating combustion furnace according to claim 1, characterized in that, It also includes a latching mechanism (9), which is located on the outer wall of the housing (1) and connects the combustion platform (3) to the housing (1). The latching mechanism (9) includes a housing (91), a disc (92), a handle (93), an arc groove (94), a cylinder (95), and a limiting plate (96).

4. The high-efficiency rotary combustion furnace according to claim 3, characterized in that, The handle (93) is fixedly connected to the side of the disc (92), the disc (92) is rotatably fitted to the outer wall of the outer shell (91), the disc (92) has an arc groove (94) inside, and the cylinder (95) is slidably fitted to the arc groove (94).

5. The high-efficiency rotary combustion furnace according to claim 4, characterized in that, The cylinder (95) is fixedly connected to the limiting plate (96). When the cylinder (95) moves at the arc groove (94), it drives the limiting plate (96) to slide. The limiting plate (96) fixes the combustion platform (3) inside the housing (1) by sliding.

6. The high-efficiency rotating combustion furnace according to claim 1, characterized in that, An igniter (5) is fixed to the side of the housing (1), and the igniter (5) extends into the interior of the housing (1).

7. The high-efficiency rotary combustion furnace according to claim 1, characterized in that, A viewing port (7) is fixed on the side of the housing (1), and the viewing port (7) is used to observe the inside of the housing (1).

8. The high-efficiency rotary combustion furnace according to claim 1, characterized in that, The feed inlet (2) is located above the outer wall of the housing (1), and the combustion platform (3) is located below the feed inlet (2).

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