Sludge catalytic combustion treatment device
By using an extrusion plate and compression plate structure in the sludge incineration device, the problem of poor combustion inside the sludge is solved, achieving complete combustion of the sludge and unobstructed extrusion holes, thus improving combustion efficiency.
Patent Information
- Application Number
- CN202520460539.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-17
AI Technical Summary
In existing sludge incineration devices, due to sludge accumulation or uneven mixing, the sludge is difficult to burn completely inside, with only the surface part being in contact with the high-temperature flame, resulting in incomplete combustion.
The structure employs an extrusion plate and a pressing plate. The pressing plate forces the sludge downwards and extrudes it from the extrusion holes. Combined with a stirring assembly and a burner, this ensures that the sludge and catalyst are fully mixed and combusted, increasing the contact area between the sludge and air.
It improves the completeness of sludge combustion, reduces incomplete combustion, and avoids clogging of the extrusion orifice through design.
Smart Images
Figure CN223924832U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of sludge incineration, and in particular to a sludge catalytic combustion treatment device. Background Technology
[0002] The sludge catalytic combustion treatment device is mainly used to treat the organic matter in sludge. Through the action of a catalyst, the organic matter in the sludge undergoes flameless combustion at a low temperature, decomposing into harmless carbon dioxide and water vapor, thereby achieving the reduction and harmless treatment of sludge.
[0003] Existing sludge incineration equipment is equipped with a combustion furnace, which has a feed inlet, a discharge outlet, and a gas outlet pipe. Burners are installed on opposite sides of the combustion furnace, and a stirring assembly for mixing the catalyst and sludge is installed inside. During the sludge incineration operation, sludge and catalyst are first fed into the combustion furnace through the feed inlet. After feeding, the stirring assembly and burners are started simultaneously. The stirring assembly thoroughly mixes the sludge and catalyst, while the burners promote the combustion of the mixed sludge and catalyst. The gases produced during combustion are discharged from the combustion furnace through the gas outlet pipe. After combustion is complete, workers remove the combustion residue from the discharge outlet.
[0004] Regarding the aforementioned technologies, although the combustion furnace is equipped with a stirring component to mix the sludge and catalyst, in actual incineration operations, due to the accumulation of sludge or uneven stirring, the sludge often only burns to the surface, while the sludge inside is not easily exposed to the high-temperature flame of the burner, resulting in incomplete combustion of the sludge. Utility Model Content
[0005] To improve the completeness of sludge combustion, this application provides a sludge catalytic combustion treatment device.
[0006] The sludge catalytic combustion treatment device provided in this application adopts the following technical solution:
[0007] A sludge catalytic combustion treatment device includes a furnace body with an inlet, an outlet, and an exhaust pipe. A burner is installed on the furnace body. An extrusion plate is fixed inside the furnace body, with an extrusion hole extending through it. The extrusion plate is located between the inlet and the outlet. The burner is located below the extrusion plate. A stirring assembly for stirring sludge and catalyst is installed on the extrusion plate. An extrusion plate is installed at the stirring assembly. A moving assembly for moving the extrusion plate vertically is installed inside the furnace body.
[0008] By adopting the above technical solution, sludge and catalyst are fed into the furnace through the inlet. After they fall onto the extrusion plate, the stirring component is immediately activated to thoroughly mix the sludge and catalyst. Simultaneously, the moving component drives the extrusion plate to slowly move downwards. After mixing, the extrusion plate contacts the sludge and begins to squeeze it downwards. Driven by the extrusion plate, the sludge is extruded from the extrusion holes and moves downwards. At this point, the burner is activated, ensuring complete combustion of the falling sludge. The burned sludge is then removed from the furnace through the outlet. By forming the sludge into fine strips or small particles, the contact area between the sludge and air is increased, thereby improving the completeness of sludge combustion.
[0009] Optionally, a motor is fixedly installed on the top wall of the furnace body. The stirring assembly includes a rotating rod and stirring blades. The rotating rod is rotatably connected between the extrusion plate and the top wall of the furnace body. The output shaft of the motor is fixedly connected to the upper end of the rotating rod. Multiple stirring blades are provided. The multiple stirring blades are arranged sequentially along the circumferential side wall of the rotating rod. The end of the stirring blade near the rotating rod is fixedly connected to the rotating rod.
[0010] By adopting the above technical solution, the motor is started, the motor drives the rotating rod to rotate, the rotating rod drives the stirring blade to rotate, and the mixing of sludge and catalyst is completed during the rotation of the stirring blade.
[0011] Optionally, multiple extrusion plates are provided, which are evenly distributed between adjacent stirring blades, and the end of the extrusion plate near the rotating rod is slidably connected to the rotating rod.
[0012] By adopting the above technical solution, the extrusion plates are placed between adjacent mixing blades, making it less likely for the mixing blades to affect the movement of the extrusion plates. At the same time, the synergistic effect of multiple extrusion plates facilitates the downward pushing of sludge.
[0013] Optionally, the rotating rod has multiple sliding grooves on its side wall, which are evenly distributed between adjacent stirring blades. The rotating rod is slidably connected to a slider in the sliding groove, and the end of the slider facing out of the sliding groove is fixedly connected to the extrusion plate and corresponds to it one by one.
[0014] By adopting the above technical solution, during the rotation of the rotating rod, the rotating rod drives the slider to move, and the slider drives the extrusion plate to make a circular motion. The setting of the slider and the groove realizes the connection between the extrusion plate and the rotating rod, and at the same time plays a guiding role in the movement of the extrusion plate.
[0015] Optionally, both the upper and lower side walls of the slider are set as inclined surfaces.
[0016] By adopting the above technical solution, during the downward or upward movement of the slider, the inclined surface of the slider pushes the sludge that has entered the chute to move out of the chute, thereby making it less likely for the sludge to affect the movement of the slider.
[0017] Optionally, the moving components are provided in multiple sets, with each set of moving components corresponding to a number of extrusion plates. A rotating plate is rotatably connected to the top wall of the furnace body, and a rotating rod passes through the rotating plate and is fixedly connected to it. The moving components include a first threaded sleeve and a first screw. The first threaded sleeve passes through the rotating plate and is rotatably connected to it. The first screw and the first threaded sleeve are threadedly connected. The bottom end of the first screw is fixedly connected to the extrusion plate. A rotating component capable of driving the first threaded sleeve to rotate is provided on the top of the furnace body.
[0018] By adopting the above technical solution, during the rotation of the rotating rod, the rotating rod drives the extrusion plate to make a circular motion, the rotating rod drives the rotating plate to rotate, the rotating plate drives the first threaded sleeve and the first screw to move, and at the same time the rotating component drives the first threaded sleeve to rotate. Under the guidance of the slider, the first threaded sleeve drives the first screw to move, and the first screw drives the extrusion plate to move. Thus, the moving component realizes the function of driving the extrusion plate to move.
[0019] Optionally, the rotating assembly includes a rack and gears. The rack is annular, and the teeth of the rack are located on the inner wall of the rack. The rack is fixedly connected to the inner wall of the furnace body. Multiple gears are provided, and each gear is fixedly connected to a first threaded sleeve and corresponds to the first threaded sleeve. The gears mesh with the rack.
[0020] By adopting the above technical solution, the rotating rod drives the rotating plate to rotate, the rotating plate drives the first threaded sleeve to make a circular motion, the first threaded sleeve drives the gear to move, and the gear rotates under the guidance of the rack. The gear drives the first threaded sleeve to rotate, so the rotating component realizes the function of driving the first threaded sleeve to rotate.
[0021] Optionally, a guide tube is fixedly provided on the lower surface of the extrusion plate. The length direction of the guide tube is perpendicular to the extrusion plate. A second threaded sleeve is provided inside the guide tube. The upper end of the second threaded sleeve passes through the extrusion plate and is rotatably connected to it. The upper end of the second threaded sleeve is fixedly connected to a rotating rod. A second screw is threadedly connected to the second threaded sleeve. Multiple clearance grooves are provided through the side wall of the guide tube. The multiple clearance grooves are arranged sequentially along the circumferential side wall of the guide tube. The length direction of the clearance grooves is parallel to the length direction of the guide tube. Multiple moving rods are fixedly provided on the bottom side wall of the second screw. The end of the moving rod away from the second screw passes through the clearance groove and corresponds to it. Multiple insert rods are fixedly provided on the upper surface of the moving rod. The insert rods are inserted and matched with the extrusion holes and correspond to them one by one.
[0022] By adopting the above technical solution, during the rotation of the rotating rod and the downward movement of the extrusion plate, the rotating rod drives the second threaded sleeve to rotate. Under the guidance of the clearance groove, the second threaded sleeve drives the second screw to move downward. The second screw drives the moving rod to move, and the moving rod drives the insertion rod to move. When the extrusion plate and the sludge come into contact, the insertion rod and the extrusion hole are in a disengaged state, allowing the sludge to move downward from the extrusion hole. When the extrusion plate moves upward from the extrusion plate, the second threaded sleeve drives the second screw to move upward. The second screw drives the moving rod to move, and the moving rod drives the insertion rod to move. During the movement of the insertion rod, the insertion rod is inserted into the extrusion hole, discharging the sludge from the extrusion hole, thus making it less prone to clogging at the extrusion hole.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. The extrusion plate squeezes the sludge downwards, and the sludge is squeezed out from the extrusion hole. The burner then promotes the combustion of the sludge. By reducing the volume of the sludge, the contact surface between the sludge and the air is increased. Thus, when the burner promotes the combustion of the sludge, the completeness of the combustion of the sludge is improved.
[0025] 2. By using a rack and pinion mechanism, there is no need to provide separate power for the rotation of the first threaded sleeve, thus saving resources;
[0026] 3. The sludge inside the extrusion hole can be discharged through the insertion rod, making the extrusion hole less prone to clogging. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the structure of a sludge catalytic combustion treatment device according to an embodiment of this application;
[0028] Figure 2 This is a cross-sectional view of the furnace body in the embodiments of this application;
[0029] Figure 3 yes Figure 2 A magnified view of part A in the middle;
[0030] Figure 4 yes Figure 2 A magnified view of part B in the middle section;
[0031] Figure 5 yes Figure 2 A magnified view of part C in the middle.
[0032] In the diagram, 1. Furnace body; 11. Feed inlet; 12. Discharge outlet; 13. Exhaust pipe; 14. Burner; 15. Extrusion plate; 16. Motor; 17. Rotating plate; 2. Extrusion plate; 21. Extrusion hole; 3. Stirring assembly; 31. Rotating rod; 311. Slide groove; 312. Sliding block; 32. Stirring blade; 4. Moving assembly; 41. First threaded sleeve; 42. First screw; 5. Rotating assembly; 51. Rack; 52. Gear; 8. Guide tube; 81. Clearance groove; 82. Second threaded sleeve; 83. Second screw; 84. Moving rod; 85. Insert rod. Detailed Implementation
[0033] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.
[0034] This application discloses a sludge catalytic combustion treatment device.
[0035] refer to Figure 1 A sludge catalytic combustion treatment device includes a furnace body 1. Burners 14 for promoting sludge combustion are provided on both opposite side walls at the bottom of the furnace body 1. An exhaust pipe 13 is fixed on the side wall at the bottom of the furnace body 1, and the exhaust pipe 13 is located above the burners 14. A feed inlet 11 is provided at the upper end of the furnace body 1. A motor 16 is fixed on the upper top wall of the furnace body 1.
[0036] Sludge and catalyst are fed into furnace body 1 through feed inlet 11. Then burner 14 is started. Burner 14 sprays flame into furnace body 1 to promote the combustion of sludge. The generated gas is discharged from furnace body 1 through exhaust pipe 13.
[0037] refer to Figure 1 and Figure 2 An extrusion plate 2 is fixedly installed inside the furnace body 1. The extrusion plate 2 is horizontally arranged and located in the middle of the furnace body 1. A stirring assembly 3 for stirring sludge and catalyst is arranged above the extrusion plate 2. The stirring assembly 3 includes a rotating rod 31 and stirring blades 32. The rotating rod 31 is rotatably connected between the extrusion plate 2 and the upper wall of the furnace body 1. The output shaft of the motor 16 is fixedly connected to the upper end of the rotating rod 31. Four stirring blades 32 are arranged in sequence along the circumferential side wall of the rotating rod 31. The end of the stirring blade 32 closest to the rotating rod 31 is fixedly connected to the rotating rod 31.
[0038] After the sludge and catalyst enter the furnace body 1, they fall onto the extrusion plate 2. The motor 16 is started, and the motor 16 drives the rotating rod 31 to rotate. The rotating rod 31 drives the stirring blade 32 to make a circular motion. During the movement of the stirring blade 32, the sludge and catalyst are stirred and mixed.
[0039] refer to Figure 2 , Figure 3 and Figure 4A rotating plate 17 is provided above the stirring blade 32. The rotating plate 17 is parallel to the extrusion plate 2. A rotating rod 31 passes through the rotating plate 17 and is fixedly connected to it. The extrusion plate 2 has an extrusion hole 21. An extrusion plate 15 is provided between adjacent stirring blades 32. The extrusion plate 15 is parallel to the rotating plate 17 and is located between the extrusion plate 2 and the rotating plate 17. Multiple sliding grooves 311 are provided on the side wall of the rotating rod 31 along its own length direction. The multiple sliding grooves 311 are arranged sequentially along the circumferential side wall of the rotating rod 31. A slider 312 is slidably connected to the rotating rod 31 in the sliding groove 311. The side of the slider 312 facing the extrusion plate 2 is fixedly connected to the extrusion plate 2 and corresponds to it one by one. The upper and lower side walls of the slider 312 are set as inclined surfaces. A moving component 4 is provided at the rotating plate 17 for driving the extrusion plate 15 to move in the vertical direction.
[0040] Multiple sets of moving components 4 are provided, and each set of moving components 4 corresponds to one of the extrusion plates 15. The moving component 4 includes a first threaded sleeve 41 and a first screw 42. The length direction of the first threaded sleeve 41 is parallel to the length direction of the rotating rod 31. The first threaded sleeve 41 passes through the rotating plate 17 and is rotatably connected to the rotating plate 17. The first screw 42 is threadedly connected to the first threaded sleeve 41. The bottom end of the first screw 42 is fixedly connected to the upper surface of the extrusion plate 15. A rotating component 5 is provided at the rotating plate 17 to drive the first threaded sleeve 41 to rotate.
[0041] The rotating assembly 5 includes a rack 51 and a gear 52. The rack 51 is annular, and the gear 52 is located on the inner side wall of the rack 51. The rack 51 is fixedly connected to the inner wall of the furnace body 1. Multiple gears 52 are provided. The gears 52 are fixedly connected to the upper end of the first threaded sleeve 41 and correspond one-to-one. The gears 52 and the rack 51 mesh.
[0042] During the rotation of the rotating rod 31, the rotating rod 31 drives the rotating plate 17 to rotate, the rotating plate 17 drives the first threaded sleeve 41 to move, the first threaded sleeve 41 drives the gear 52 to move, and during the movement of the gear 52, the gear 52 rotates under the guidance of the rack 51, the gear 52 drives the first threaded sleeve 41 to rotate, and at the same time the rotating rod 31 drives the slider 312 to move, the slider 312 drives the extrusion plate 15 to move, the first threaded sleeve 41 drives the first screw 42 to move under the guidance of the slider 312, the first screw 42 drives the extrusion plate 15 to move, and the extrusion plate 15 drives the slider 312 to move. 12 moves within the chute 311. During the movement of slider 312, the inclined surface of slider 312 pushes the sludge into the chute 311 from the outside, making it less likely for the sludge to affect the movement of slider 312. By rotating rod 31 in both directions, the extrusion plate 15 moves up and down. During the downward movement of extrusion plate 15, after the stirring assembly 3 stirs and mixes the sludge and catalyst, extrusion plate 15 comes into contact with the sludge and pushes the sludge downward. The sludge falls from the extrusion hole 21 to the bottom of extrusion plate 2. Burner 14 causes the sludge particles or thin strips of sludge that fall to the bottom of extrusion plate 2 to burn.
[0043] refer to Figure 2 , Figure 4 and Figure 5 A guide tube 8 is fixedly installed in the middle of the lower surface of the extrusion plate 2. The length direction of the guide tube 8 is perpendicular to the extrusion plate 2. A second threaded sleeve 82 is installed inside the guide tube 8. The length direction of the second threaded sleeve 82 is parallel to the length direction of the guide tube 8. The upper end of the second threaded sleeve 82 passes through the extrusion plate 2 and is rotatably connected to it. The upper end of the second threaded sleeve 82 is fixedly connected to the lower end of the rotating rod 31. A second screw 83 is threadedly connected to the second threaded sleeve 82. A plurality of moving rods 84 are fixedly installed at the bottom end of the second screw 83. The length direction of the moving rods 84 is perpendicular to the length direction of the second screw 83. The plurality of moving rods 84 are along the circumferential sidewall of the second screw 83. Multiple clearance grooves 81 are provided on the side wall of the guide tube 8 in sequence. The clearance grooves 81 are arranged in sequence along the circumferential side wall of the guide tube 8. The length direction of the clearance grooves 81 is parallel to the length direction of the guide tube 8. The end of the moving rod 84 away from the second screw 83 passes through the clearance grooves 81 and corresponds to each other. The moving rod 84 and the guide tube 8 are slidably connected. Multiple insertion rods 85 are fixed on the upper surface of the moving rod 84. The multiple insertion rods 85 are arranged in sequence along the length direction of the moving rod 84. The length direction of the insertion rods 85 is perpendicular to the length direction of the moving rod 84. The insertion rods 85 are inserted into the extrusion holes 21 and correspond to each other. The bottom end of the furnace body 1 is provided with a discharge port 12.
[0044] When the stirring assembly 3 is not started, one end of the insert rod 85 is inserted into the extrusion hole 21. During the downward movement of the extrusion plate 15, the rotating rod 31 drives the second threaded sleeve 82 to rotate. Under the guidance of the moving rod 84, the second threaded sleeve 82 drives the second screw 83 to move downward. The second screw 83 drives the moving rod 84 to move downward. The moving rod 84 drives the insert rod 85 to move, and the insert rod 85 disengages from the extrusion hole 21. Subsequently, the extrusion plate 15 contacts and extrudes the sludge. After the sludge inside the furnace body 1 has burned out, it is removed from the furnace body 1 from the discharge port 12. When the extrusion plates 15 move towards each other, the second threaded sleeve 82 drives the second screw 83 to move upward. The second screw 83 drives the moving rod 84 to move. The moving rod 84 drives the insert rod 85 to move, and the insert rod 85 is inserted into the extrusion hole 21. This makes it difficult for sludge to remain in the extrusion hole 21, making it difficult for the sludge to solidify into the extrusion hole 21 and preventing the extrusion hole 21 from becoming blocked.
[0045] The implementation principle of the sludge catalytic combustion treatment device in this application embodiment is as follows: After the sludge and catalyst are put into the furnace body 1, the motor 16 is started. The motor 16 drives the stirring component 3 to stir and mix the sludge and catalyst. At the same time, the moving component 4 drives the extrusion plate 15 to move downward. After the sludge and catalyst are mixed, the extrusion plate 15 contacts the sludge and squeezes the sludge downward. The sludge is squeezed out from the extrusion hole 21 and falls below the extrusion plate 2. The burner 14 causes the sludge below the extrusion plate 2 to burn. After the combustion is completed, the residue is removed from the furnace body 1 from the discharge port 12. By reducing the volume of the sludge, the contact area between the sludge and the air is increased, thereby improving the completeness of sludge combustion.
[0046] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A sludge catalytic combustion treatment device, comprising a furnace body (1), wherein the furnace body (1) is provided with a feed inlet (11), a discharge outlet (12) and an exhaust pipe (13), and a burner (14) is provided on the furnace body (1), characterized in that: An extrusion plate (2) is fixed inside the furnace body (1). An extrusion hole (21) is opened through the extrusion plate (2). The extrusion plate (2) is located between the feed inlet (11) and the discharge outlet (12). The burner (14) is located below the extrusion plate (2). A stirring assembly (3) for stirring sludge and catalyst is provided on the extrusion plate (2). An extrusion plate (15) is provided at the stirring assembly (3). A moving assembly (4) for driving the extrusion plate (15) to move in the vertical direction is provided inside the furnace body (1).
2. The sludge catalytic combustion treatment device according to claim 1, characterized in that: A motor (16) is fixedly mounted on the top wall of the furnace body (1). The stirring assembly (3) includes a rotating rod (31) and stirring blades (32). The rotating rod (31) is rotatably connected between the extrusion plate (2) and the top wall of the furnace body (1). The output shaft of the motor (16) is fixedly connected to the upper end of the rotating rod (31). Multiple stirring blades (32) are provided. Multiple stirring blades (32) are arranged sequentially along the circumferential side wall of the rotating rod (31). The end of the stirring blade (32) close to the rotating rod (31) is fixedly connected to the rotating rod (31).
3. The sludge catalytic combustion treatment device according to claim 2, characterized in that: Multiple extrusion plates (15) are provided, and the multiple extrusion plates (15) are evenly distributed between adjacent stirring blades (32). The end of the extrusion plate (15) near the rotating rod (31) is slidably connected to the rotating rod (31).
4. The sludge catalytic combustion treatment device according to claim 2, characterized in that: The rotating rod (31) has multiple sliding grooves (311) on its side wall. The multiple sliding grooves (311) are evenly distributed between adjacent stirring blades (32). The rotating rod (31) is slidably connected to a slider (312) in the sliding groove (311). The end of the slider (312) facing the outside of the sliding groove (311) is fixedly connected to the extrusion plate (15) and corresponds to it one by one.
5. The sludge catalytic combustion treatment device according to claim 4, characterized in that: The upper and lower side walls of the slider (312) are both set as inclined surfaces.
6. The sludge catalytic combustion treatment device according to claim 4, characterized in that: The moving component (4) is provided in multiple sets, and the multiple moving components (4) correspond one-to-one with multiple extrusion plates (15). A rotating plate (17) is rotatably connected to the top wall of the furnace body (1). A rotating rod (31) passes through the rotating plate (17) and is fixedly connected to the rotating plate (17). The moving component (4) includes a first threaded sleeve (41) and a first screw (42). The first threaded sleeve (41) passes through the rotating plate (17) and is rotatably connected to the rotating plate (17). The first screw (42) and the first threaded sleeve (41) are threadedly connected. The bottom end of the first screw (42) is fixedly connected to the extrusion plate (15). A rotating component (5) capable of driving the first threaded sleeve (41) to rotate is provided on the top of the furnace body (1).
7. The sludge catalytic combustion treatment device according to claim 6, characterized in that: The rotating assembly (5) includes a rack (51) and a gear (52). The rack (51) is ring-shaped, and the teeth of the rack (51) are located on the inner wall of the rack (51). The rack (51) is fixedly connected to the inner wall of the furnace body (1). Multiple gears (52) are provided. The gears (52) are fixedly connected to the first threaded sleeve (41) and correspond one-to-one. The gears (52) mesh with the rack (51).
8. The sludge catalytic combustion treatment device according to claim 2, characterized in that: A guide tube (8) is fixedly provided on the lower surface of the extrusion plate (2). The length direction of the guide tube (8) is perpendicular to the extrusion plate (2). A second threaded sleeve (82) is provided inside the guide tube (8). The upper end of the second threaded sleeve (82) passes through the extrusion plate (2) and is rotatably connected to the extrusion plate (2). The upper end of the second threaded sleeve (82) is fixedly connected to the rotating rod (31). The second threaded sleeve (82) is threadedly connected to a second screw (83). Multiple clearance grooves (81) are provided through the side wall of the guide tube (8). Multiple clearance grooves (81) are arranged sequentially along the circumferential sidewall of the guide tube (8). The length direction of the clearance grooves (81) is parallel to the length direction of the guide tube (8). Multiple moving rods (84) are fixedly provided on the bottom sidewall of the second screw (83). The end of the moving rod (84) away from the second screw (83) passes through the clearance groove (81) and corresponds to it. Multiple insert rods (85) are fixedly provided on the upper surface of the moving rod (84). The insert rods (85) and the extrusion hole (21) are inserted and matched and correspond to each other.