A circulating fluidized bed boiler for solid waste treatment

Through the coordinated work of multiple systems of the circulating fluidized bed boiler, the problems of high cost and low efficiency of industrial solid waste treatment have been solved, low-cost and efficient solid waste treatment has been achieved, and the stable temperature of the combustion chamber has been ensured.

CN118463191BActive Publication Date: 2025-09-09ZHEJIANG HETAI THERMAL POWER CO LTD
View PDF 4 Cites 0 Cited by

Patent Information

Application Number
CN202410670848.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-05-28
Publication Date
2025-09-09
Estimated Expiration
2044-05-28

AI Technical Summary

Technical Problem

Existing industrial solid waste treatment is costly and inefficient, requiring compaction, crushing, and sorting before it can be burned in boilers.

Method used

The solid waste treatment circulating fluidized bed boiler includes a combustion chamber, a feeding system, a conveying and compacting system, a propulsion system, a drive mechanism, a cutting system, a collection and conveying system, a cyclone separator and a heat exchange system. Through the coordinated work of multiple systems such as compaction, cutting and conveying, efficient treatment of industrial solid waste is achieved.

Benefits of technology

On the basis of sufficient preliminary treatment of industrial solid waste, the treatment cost is reduced, the treatment efficiency is improved, the energy consumption is reduced, and the temperature of the combustion chamber is ensured to be stable.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN118463191B_ABST
    Figure CN118463191B_ABST
Patent Text Reader

Abstract

The present invention discloses a circulating fluidized bed boiler for solid waste treatment, comprising: a feeding system, a conveying and compacting system, comprising a conveying frame, multiple compacting plates and multiple compacting rods, a driving system, comprising a bracket and a hydraulic cylinder, the bracket being connected to the multiple compacting rods, the hydraulic cylinder being connected to the bracket, for driving the bracket and the multiple compacting rods to slide up and down, so as to drive the multiple compacting plates to move up and down, thereby compacting the solid waste; a propulsion system, comprising a push plate, the push plate being arranged in the conveying frame for sliding transversely, the push plate comprising a push frame and a rotating plate, the rotating plate being arranged on the push frame, the driving mechanism comprising a screw, a positioning frame, a screw ring, a rocker arm, a positioning shaft and a turntable. The present invention has the following beneficial effects: this circulating fluidized bed boiler for solid waste treatment effectively reduces the treatment cost of industrial solid waste and improves the treatment efficiency under the premise of sufficient preliminary treatment of industrial solid waste.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to a solid waste treatment circulating fluidized bed boiler. Background Art

[0002] General industrial solid waste refers to harmless solid waste generated during industrial production activities, including tailings, red mud, steel slag, non-ferrous metal slag, fly ash, industrial by-product gypsum, sludge, etc.

[0003] There are many types of industrial solid waste, and each requires a different treatment process, resulting in significant processing costs. The current method for recycling and environmentally friendly industrial solid waste treatment is to burn it in a boiler. Since most industrial solid waste has a high calorific value, it can meet the requirements of boiler fuel.

[0004] However, existing industrial solid waste still needs to be compacted, crushed, and sorted before being sent to the combustion chamber for combustion treatment, which makes the initial treatment cost of industrial solid waste relatively high. In order to reduce the treatment cost of industrial solid waste, this application provides a solid waste treatment circulating fluidized bed boiler, which effectively reduces the treatment cost of industrial solid waste and improves the treatment efficiency while fully treating the industrial solid waste in the early stage. Summary of the Invention

[0005] The purpose of the present invention is to provide a solid waste treatment circulating fluidized bed boiler that effectively reduces the treatment cost of industrial solid waste and improves the treatment efficiency while fully treating the industrial solid waste in advance.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A circulating fluidized bed boiler for solid waste treatment comprises: a combustion chamber for burning solid waste; a feeding system comprising a feeding port and a feeding channel, the feeding port being arranged at one side of the bottom of the combustion chamber, the feeding channel being connected to the feeding port, and being used to introduce solid waste into the combustion chamber; a conveying and compacting system comprising a conveying frame, a plurality of compacting plates and a plurality of compacting rods, the conveying frame being connected to the feeding channel, the plurality of compacting plates being slidably arranged in the conveying frame, the plurality of compacting rods being respectively connected to the plurality of compacting plates, and being used to compact the solid waste when it passes through the conveying frame; a driving system comprising a bracket and a hydraulic cylinder, the bracket being connected to the plurality of compacting rods, the hydraulic cylinder being connected to the bracket, and being used to drive the bracket and the plurality of compacting rods upwards and downwards It slides downward to drive multiple compacting plates to move up and down, thereby compacting the solid waste; the propulsion system includes a push plate, which is arranged in the conveying frame for sliding horizontally. The push plate includes a push frame and a rotating plate. The rotating plate is arranged on the push frame to support and guide the movement of the push plate; the driving mechanism includes a screw, a positioning frame, a screw ring, a rocker arm, a positioning shaft and a turntable. The screw is connected to the push frame and is threaded with the positioning frame. The screw ring is arranged at one end of the screw and is hinged to the rocker arm. The other end of the rocker arm is connected to the positioning shaft. The positioning shaft is fixed to the edge of the turntable. The rotation of the turntable drives the rocker arm to swing, thereby driving the push plate to slide back and forth in the conveying frame through the screw to push the solid waste into the combustion chamber.

[0008] The present invention is further configured as follows: the driving mechanism also includes a driving plate and a slide groove, the driving plate is arranged on one side of the bracket, the slide groove is arranged on the driving plate, the slide groove includes two transverse grooves and one oblique groove, the driving block is slidably arranged in the slide groove, the driving block is connected to the driving disk, the middle part of the driving disk is connected to the rotating shaft, the rotating shaft is connected to the rotating shaft and the turntable through a transmission wheel group to synchronously drive the movement of the turntable and the push plate.

[0009] The present invention is further configured such that the driving block moves along the slide groove under the action of the inclined groove, causing the driving disk to rotate, driving the rotating shaft and the rotating disk to rotate synchronously, thereby driving the push plate to slide back and forth in the conveying frame.

[0010] The present invention is further configured to include a cutting system, which includes a plurality of half-grooves arranged on a plurality of compacting plates and a cutter arranged in a circular groove formed by the combination of the half-grooves, and the cutter is used to cut the solid waste to improve the compaction effect.

[0011] The present invention is further configured as follows: a connecting shaft is connected to the middle part of the cutter, the connecting shaft is connected to the adjusting wheel through a gear, the adjusting wheel is connected to the adjusting tooth through an adjusting rod, the adjusting tooth is engaged with the gear rod, the gear rod is connected to the spiral ring, and the reciprocating motion of the spiral ring drives the gear rod to move to adjust the cutting angle of the cutter.

[0012] The present invention is further configured as follows: a plurality of ratchets are provided on the gear rod for controlling the unidirectional rotation of the adjustment rod, thereby achieving precise adjustment of the angle of the cutter during the cutting process and improving the cutting effect.

[0013] The present invention is further configured to include: a collection and conveying system, the collection and conveying system includes a collection pool arranged on one side of the frame, a conveyor belt is provided in the collection pool, and a plurality of conveyor plates are provided on the conveyor belt, and the conveyor belt is used to transport solid waste to the feed channel.

[0014] The present invention is further configured as follows: the conveyor belt is driven by a conveyor rod, the conveyor rod is connected to the frame through a support, and is connected to the conveyor plate through a second transmission wheel group and a bevel gear group to achieve automatic conveying of solid waste.

[0015] The present invention is further configured to include a cyclone separator, which is connected to one side of the top of the combustion chamber and is used to separate flue gas and solid waste particles. The separated solid waste particles are returned to the combustion chamber through the cyclone separator to continue burning.

[0016] The present invention is further configured to include a heat exchange system, which includes a heat exchange chamber connected to the cyclone separator and a heat pack connected to the outer wall of the combustion chamber through a pipeline system. The heat exchange chamber is used to perform heat exchange on the separated flue gas, and the heat pack is used to collect and output steam.

[0017] In summary, the present invention has the following beneficial effects: this solid waste treatment circulating fluidized bed boiler effectively reduces the treatment cost of industrial solid waste and improves the treatment efficiency under the premise of sufficient preliminary treatment of industrial solid waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of a circulating fluidized bed boiler;

[0019] Figure 2 It is a structural diagram of an embodiment;

[0020] Figure 3 for Figure 2 The structural diagram after deleting some conveyor racks;

[0021] Figure 4 for Figure 3 Schematic diagram of the lateral structure;

[0022] Figure 5 It is a structural diagram of the push plate;

[0023] Figure 6 for Figure 4 Magnified view of area A in .

[0024] Figure 7 for Figure 4 Schematic diagram of the local structure;

[0025] Figure 8 A bottom view schematic diagram of the structure of the embodiment;

[0026] Figure 9 for Figure 2 Schematic diagram of the local structure;

[0027] Figure 10 for Figure 9 Schematic diagram of the side structure.

[0028] Figure 1: Combustion chamber; 2: Inlet; 3: Cyclone separator; 4: Heat exchange chamber; 5: Heat pack; 6: Frame; 7: Inlet channel; 8: Conveying rack; 9: Compacting plate; 10: Compacting rod; 11: Bracket; 12: Hydraulic cylinder; 13: Push plate; 14: Conveying space; 15: Push rack; 16: Rotating plate; 17: Circular groove; 18: Slider; 19: Fixed plate; 20: Screw; 21: Positioning rack; 22: Screw ring; 23: Rocker; 24: Positioning shaft; 25: Turntable; 26: Drive plate; 27: Slide; 28. Horizontal groove; 29. ​​Inclined groove; 30. Drive block; 31. Drive plate; 32. Rotating shaft; 33. Transmission wheel group 1; 34. Rotating shaft; 35. Half groove; 37. Cutter; 38. Connecting shaft; 39. Gear; 40. Adjusting wheel; 41. Adjusting rod; 42. Adjusting teeth; 43. Gear rod; 44. Connecting rod; 45. Collecting tank; 46. Conveyor belt; 47. Conveyor plate; 48. Feed rack; 49. Conveyor rod; 50. Support; 51. Transmission wheel group 2; 52. Bevel gear group; 53. Conveyor plate. DETAILED DESCRIPTION

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly indicate the quantity of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0031] In the description of the present invention, "plurality" means two or more, unless otherwise clearly defined. In the present invention, unless otherwise clearly defined and defined, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0032] The present invention will be further described in detail below with reference to the accompanying drawings.

[0033] like Figure 1 As shown, a circulating fluidized bed boiler for solid waste treatment includes a combustion chamber 1 for burning solid waste. A feed port 2 is provided on one side of the bottom of the combustion chamber 1, through which solid waste raw materials can be added. An air flow is input on one side of the bottom of the combustion chamber 1, so that the solid waste forms a fluidized state, thereby improving the combustion efficiency. A cyclone separator 3 is connected to one side of the top of the combustion chamber 1. After the solid waste is burned, the flue gas carries the solid waste raw material particles through the top of the combustion chamber 1 and enters the cyclone separator 3, so that the solid waste particles are separated from the flue gas. The flue gas flows upward and enters the heat exchange chamber 4 connected to the cyclone separator 3, and is discharged through the chimney after being treated by the subsequent absorption tower and dust removal chamber. The separated solid waste particles return to the combustion chamber 1 to continue burning.

[0034] Heat exchange chamber 4 is connected to the outer wall of combustion chamber 1 via a piping system, forming a water-cooled wall. While cooling the inner wall of combustion chamber 1, the water flowing through the water-cooled wall evaporates at high temperatures and is fed into heat pack 5. Steam is then output through piping to the steam turbine for use. The above describes the solid waste incineration process in a circulating fluidized bed boiler for solid waste treatment, which is prior art and will not be elaborated on here.

[0035] The core technical purpose of this application is to process the solid waste input into the feed port 2 at low cost, high efficiency and without the need for sorting in the early stage.

[0036] like Figure 2 、 Figure 3As shown, in order to solve the problem that solid waste raw materials need to be compacted. The present application has a frame 6 provided on one side of the feed port 2. The frame 6 is provided with a feed channel 7 connected to the feed port 2. The feed channel 7 is connected to a conveying frame 8. The bottom of the conveying frame 8 is arranged in a circular shape. A plurality of compacting plates 9 arranged in sequence and fitting with the bottom of the conveying frame 8 are slidingly provided in the conveying frame 8. The compacting plates 9 are all fixedly connected with compacting rods 10. Among them, a plurality of compacting rods 10 are commonly connected to a bracket 11 that slides up and down in the longitudinal direction. A hydraulic cylinder 12 is connected to the top of the bracket 11 for driving the bracket 11 to slide. As mentioned above, the bracket 11 is driven up and down by the hydraulic cylinder 12, thereby driving the plurality of compacting rods 10 as a whole to slide up and down together, and then driving the compacting plate 9 to fit with the bottom of the conveying frame 8, and compacting the solid waste raw materials in the conveying frame 8.

[0037] like Figure 4 、 Figure 5 、 Figure 6 As shown, in order to solve the problem that solid waste raw materials need to be transported in the conveying rack 8. The present application provides a push plate 13 that slides laterally in the conveying rack 8. The shape of the push plate 13 matches the conveying rack 8. A conveying space 14 is provided between the push plate 13 and the compacting rod 10, and the push plate 13 can only move between the conveying spaces 14. The push plate 13 includes a push frame 15 and a rotating plate 16. A circular groove 17 arranged around the rotating plate 16 is provided on the rotating plate 16. A slider 18 is slidably provided in the circular groove 17. A fixed plate 19 is provided outside the slider 18, and the fixed plate 19 is fixedly connected to the push frame 15.

[0038] A screw rod 20 is provided in the middle of the rotating plate 16. Correspondingly, a positioning frame 21 is provided on the outside of the screw rod 20. The positioning frame 21 is provided in threaded cooperation with the screw rod 20. A screw ring 22 is connected to the bearing at the end of the screw rod 20. A rocker arm 23 is hingedly provided at one end of the screw ring 22. A positioning shaft 24 is hingedly provided at the end of the rocker arm 23. The positioning shaft 24 is connected to a turntable 25. Among them, the positioning shaft 24 is provided at the edge of the turntable 25. When the turntable 25 rotates, it can drive the rocker arm 23 to swing, thereby driving the screw ring 22 hinged thereto to move back and forth in the horizontal direction, thereby driving the screw rod 20 to drive the rotating plate 16 and the push plate 13 to slide back and forth horizontally. The solid waste in the conveying space 14 is pushed into the interior of the conveying rack 8. When new solid waste enters the conveying space 14, it continues to be pushed and fixed into the conveying rack 8. The solid waste pushed in later will push the solid waste pushed in earlier further into the conveying rack 8. After multiple conveyings, the initial solid waste reaches the feed channel 7 and is output into the combustion chamber 1 for processing.

[0039] As mentioned above, when the push plate 13 reciprocates, the rotating plate 16 therein rotates continuously due to the threaded fit between the screw 20 and the positioning frame 21, and the solid waste raw materials in the conveying space 14 are pushed into the conveying frame 8 in a rotating pushing manner. This rotating pushing method can overcome the complexity of the types of solid waste raw material components. For example, solid waste containing sludge is generally in a viscous liquid state. Simple pushing can easily cause the sludge to adhere to the push plate 13 or cause the sludge to adhere in the conveying space 14. Through the rotating pushing method, the adhesion of the viscous liquid sludge can be reduced, thereby improving the conveying efficiency of the solid waste raw materials.

[0040] like Figure 7 As shown, in order to solve the problem of incoordination between the transportation and compaction processes of solid waste raw materials. The present application provides a drive plate 26 on one side of the bracket 11. A chute 27 is provided on the drive plate 26. The chute 27 is connected to two transverse grooves 28 and an inclined groove 29. A drive block 30 is provided in the chute 27 for sliding. The drive block 30 is fixedly connected to a drive disk 31. A rotating shaft 32 is connected to the middle of the drive disk 31. The rotating shaft 32 is connected to a transmission wheel group 33, which is composed of two transmission wheels and a belt. A rotating shaft 34 is connected between the transmission wheel group 33 and the turntable 25. When the rotating shaft 34 rotates, it can drive the turntable 25 to rotate.

[0041] As mentioned above, when the bracket 11 moves upward under the action of the hydraulic cylinder 12, it drives the driving plate 26 to move upward, and then the driving block 30 in the slide 27 moves along the inclined groove 29 under the action of the inclined groove 29, so that the driving disk 31 rotates accordingly. Under the action of the transmission wheel group 33, the driving shaft 34 rotates, so that the turntable 25 drives the push plate 13 to move back and forth horizontally to push the solid waste raw materials into the conveying rack 8.

[0042] Under the above arrangement, the upward movement of the bracket 11 causes the push plate 13 to reciprocate once, and the downward movement of the bracket 11 also causes the push plate 13 to reciprocate once. Consequently, the push plate 13 performs multiple reciprocating movements within the conveying space 14, fully pushing the solid waste materials in the conveying space 14 into the conveying rack 8 for compaction. Furthermore, the above arrangement allows for more coordinated movement between the bracket 11 and the push plate 13. Furthermore, the hydraulic cylinder 12 can drive both the bracket 11 and the push plate 13 to operate simultaneously, reducing the number of drive sources and thus saving energy.

[0043] like Figure 3 、 Figure 8 、 Figure 9As shown, in order to solve the problem that the solid waste raw materials cannot be compacted or the compaction effect is poor due to the complexity of the shape. The present application is provided with a half groove 35 on each compacting plate 9. The half grooves 35 of two adjacent compacting plates 9 are combined to form an overall circular groove. Between the two compacting plates 9, a cutter 37 is provided that can rotate in the circular groove to change the angle. A connecting shaft 38 is connected to the middle of the cutter 37, and a gear 39 is connected to the top of each connecting shaft 38. Multiple gears 39 are commonly connected to the bearings between the bracket 11. An adjusting wheel 40 is provided on one side of each gear 39 at the bottom of the bracket 11. The adjusting wheel 40 is connected to each gear 39 through a rack or chain transmission.

[0044] An adjusting rod 41 is connected to the middle of the adjusting wheel 40. An adjusting tooth 42 is provided at the bottom of the adjusting rod 41. A gear rod 43 is provided outside the adjusting tooth 42. A plurality of ratchets are provided on the gear rod 43 for controlling the one-way rotation of the adjusting rod 41. A connecting rod 44 is connected to the end of the gear rod 43 away from the adjusting tooth 42. The connecting rod 44 is fixedly connected to the screw ring 22. When the screw ring 22 moves back and forth laterally, it can drive the gear rod 43 to move back and forth, thereby applying a rotational force to the adjusting tooth 42, and the adjusting rod 41 rotates. The adjusting rod 41 drives each gear 39 to rotate through a chain, so that the cutter 37 rotates in the circular groove formed by the two half grooves 35 to adjust the cutting angle.

[0045] Under the above setting, the cutter 37 will adjust the fixed angle each time the bracket 11 moves up and down, so that the solid waste raw materials entering the conveying rack 8 and gradually conveyed to the feed channel 7 are cut and compacted at different angles of the cutter 37, thereby cutting, crushing and compacting the solid waste raw materials, thereby avoiding changes in the combustion time and calorific value of the untreated solid waste raw materials due to the different forms, and providing support for the temperature stability of the combustion chamber 1.

[0046] like Figure 9 、 Figure 10 As shown, in order to automatically convey solid waste materials, the present application provides a collection tank 45 for accommodating solid waste materials on one side of the frame 6. A conveyor belt 46 is provided in the collection tank 45. The conveyor belt 46 is provided with a plurality of conveyor plates 47 arranged in sequence around the conveyor belt 46. When the conveyor belt 46 is in operation, the conveyor plate 47 at the bottom drives the solid waste materials in the collection tank 45 into the space between the two conveyor plates 47, and is then driven to the top of the conveyor belt 46 as the conveyor belt 46 conveys the solid waste materials.

[0047] A feed rack 48 is located below and corresponding to the top of the conveyor belt 46. The feed rack 48 is fixedly connected to the conveyor frame 8, with its bottom correspondingly positioned above the conveying space 14. When the conveyor plates 47, carrying the raw materials, reach the top of the feed rack 48, they flip over, transferring the solid waste between the conveyor plates 47 into the feed rack 48. The solid waste in the feed rack 48 then moves along the feed rack 48 and ultimately enters the conveying space 14 of the conveyor frame 8.

[0048] Among them, a conveyor rod 49 for driving the conveyor belt 46 is provided at the top of the conveyor belt 46. The conveyor rod 49 is connected to the frame 6 through a bearing of a support 50, and the other end of the conveyor rod 49 is correspondingly provided with a transmission wheel group 2 51 with the same structure as above. The transmission wheel group 2 51 is connected to the bevel gear 39 group. The bevel gear 39 group is connected to the conveyor disc 53. The conveyor disc 53 is connected to the positioning shaft 24 connected to the turntable 25, and the positioning shaft 24 is at an eccentric position of the conveyor disc 53. When the positioning shaft 24 moves with the rotation of the turntable 25, the conveyor disc 53 rotates at the same time. The conveyor disc 53 transmits power to the conveyor rod 49 through the bevel gear 39 group and the transmission wheel group 2 51, so that the conveyor rod 49 transfers the solid waste raw materials to the feed rack 48 every time the turntable 25 rotates one circle, that is, when the push plate 13 reciprocates once, thereby completing the automatic conveying of the solid waste raw materials.

[0049] Overall process:

[0050] 1. Collect general solid waste in the collection tank 45 and activate the hydraulic cylinder 12;

[0051] 2. The hydraulic cylinder 12 drives the bracket 11 to move down to the position as shown in the figure. Figure 2 At the position shown, the support 11 is at its lowest point. During the downward movement of the support 11, the hydraulic cylinder 12 drives the compacting plate 9 to press down and compact the solid waste materials in the conveying frame 8. At the same time, the cutter 37 performs a corresponding cutting and crushing process on the solid waste in the circular groove.

[0052] 3. During the above process, the turntable 25 rotates one circle, causing the swing rod 23 to swing, driving the push plate 13 to push the solid waste materials in the conveying space 14 under the compacting plate 9 for compaction. In addition, the bracket 11 moves downward to drive the push plate 13 to move back and forth horizontally. At the same time, the movement of the bevel gear 39 and the second transmission wheel group 51 causes the conveyor belt 46 to work, and the solid waste materials between the conveying plates 47 are put into the feed rack 48. The solid waste materials in the feed rack 48 eventually re-enter the conveying space 14 to fill the solid waste materials.

[0053] 4. At the same time, as the cutter 37 moves downward, the reciprocating motion of the screw ring 22 drives the adjustment rod 41 to rotate, thereby causing the adjustment wheel 40 and the gear 39 to rotate, thereby adjusting the downward cutting angle of the cutter 37;

[0054] 5. The above steps 1-4 are repeated repeatedly, so that the push plate 13 pushes the solid waste forward, and the solid waste at the back is compacted and cut, which drives the solid waste in the front forward. After multiple compactions and cutting at different angles, the solid waste enters the feed port 2 and is put into the combustion chamber 1 for combustion.

[0055] The above process eliminates the need for pre-treatment of solid waste, and the above-mentioned device can be directly used for corresponding treatment during transportation. Compared with the prior art method of inputting the solid waste into the combustion chamber 1 through a screw conveyor after pre-treatment, the process has the characteristics of reducing treatment costs and improving treatment efficiency.

[0056] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A circulating fluidized bed boiler for solid waste treatment, characterized in that: include: A combustion chamber (1) for burning solid waste; A feeding system comprises a feeding port (2) and a feeding channel (7), wherein the feeding port (2) is arranged at one side of the bottom of the combustion chamber (1), and the feeding channel (7) is communicated with the feeding port (2) and is used to introduce solid waste into the combustion chamber (1); A conveying and compacting system comprises a conveying frame (8), a plurality of compacting plates (9) and a plurality of compacting rods (10), wherein the conveying frame (8) is connected to the feeding channel (7), the plurality of compacting plates (9) are slidably arranged in the conveying frame (8), and the plurality of compacting rods (10) are respectively connected to the plurality of compacting plates (9) for compacting the solid waste when the solid waste passes through the conveying frame (8); A driving system comprises a bracket (11) and a hydraulic cylinder (12), wherein the bracket (11) is connected to the plurality of compacting rods (10), and the hydraulic cylinder (12) is connected to the bracket (11) and is used to drive the bracket (11) and the plurality of compacting rods (10) to slide up and down, thereby driving the plurality of compacting plates (9) to move up and down, thereby compacting the solid waste; A propulsion system includes a push plate (13), wherein the push plate (13) is laterally slidably arranged in the conveying frame (8), and the push plate (13) includes a push frame (15) and a rotating plate (16), wherein the rotating plate (16) is arranged on the push frame (15) for supporting and guiding the movement of the push plate (13); The driving mechanism comprises a screw (20), a positioning frame (21), a screw ring (22), a rocker (23), a positioning shaft (24) and a turntable (25), wherein the screw (20) is connected to the push frame (15) and is threadedly engaged with the positioning frame (21), the screw ring (22) is arranged at one end of the screw (20) and is hinged to the rocker (23), the other end of the rocker (23) is connected to the positioning shaft (24), and the positioning shaft (24) is fixed to the edge of the turntable (25), and the rotation of the turntable (25) drives the rocker (23) to swing, thereby driving the push plate (13) to slide back and forth in the conveying frame (8) through the screw (20), thereby pushing the solid waste into the combustion chamber (1); A cutting system, the cutting system comprising a plurality of half grooves (35) arranged on the plurality of compacting plates (9) and a cutter (37) arranged in a circular groove formed by combining the half grooves (35), the cutter (37) being used to cut the solid waste to improve the compaction effect; The middle part of the cutter (37) is connected with a connecting shaft (38), the connecting shaft (38) is connected to an adjusting wheel (40) through a gear (39), the adjusting wheel (40) is connected to an adjusting tooth (42) through an adjusting rod (41), the adjusting tooth (42) is meshed with a tooth bar (43), the tooth bar (43) is connected to the screw ring (22), and the reciprocating motion of the screw ring (22) drives the tooth bar (43) to move, thereby adjusting the cutting angle of the cutter (37).

2. The solid waste treatment circulating fluidized bed boiler according to claim 1, characterized in that: The driving mechanism further comprises a driving plate (26) and a slide groove (27), wherein the driving plate (26) is arranged on one side of the bracket (11), and the slide groove (27) is arranged on the driving plate (26), wherein the slide groove (27) comprises two transverse grooves (28) and an inclined groove (29), and a driving block (30) is slidingly arranged in the slide groove (27), wherein the driving block (30) is connected to the driving disk (31), and the middle part of the driving disk (31) is connected to a rotating shaft (32), and the rotating shaft (32) is connected to a rotating shaft (34) and the rotating disk (25) through a transmission wheel group (33) to synchronously drive the movement of the rotating disk (25) and the push plate (13).

3. The solid waste treatment circulating fluidized bed boiler according to claim 2, characterized in that: The driving block (30) moves along the slide groove (27) under the action of the inclined groove (29), causing the driving disk (31) to rotate, driving the rotating shaft (32) and the rotating disk (25) to rotate synchronously, thereby driving the push plate (13) to slide back and forth in the conveying frame (8).

4. The solid waste treatment circulating fluidized bed boiler according to claim 1, characterized in that: The toothed rod (43) is provided with a plurality of ratchets for controlling the unidirectional rotation of the adjustment rod (41), thereby achieving precise adjustment of the angle of the cutter (37) during the cutting process and improving the cutting effect.

5. The solid waste treatment circulating fluidized bed boiler according to claim 1, characterized in that: The invention also includes a collection and conveying system, wherein the collection and conveying system includes a frame (6) arranged on one side of the feed port (2), and also includes a collection pool (45) arranged on one side of the frame (6), wherein a conveyor belt (46) is provided in the collection pool (45), and a plurality of conveyor plates (47) are provided on the conveyor belt (46), and the conveyor belt (46) is used to convey the solid waste to the feed channel (7).

6. The solid waste treatment circulating fluidized bed boiler according to claim 5, characterized in that: The conveyor belt (46) is driven by a conveyor rod (49), which is connected to the frame (6) through a support (50) and connected to a conveyor plate (53) through a second transmission wheel group (51) and a bevel gear group (52) to achieve automatic conveying of solid waste.

7. The solid waste treatment circulating fluidized bed boiler according to claim 1, characterized in that: It also includes a cyclone separator (3), which is connected to one side of the top of the combustion chamber (1) and is used to separate smoke and solid waste particles.

8. The solid waste treatment circulating fluidized bed boiler according to claim 7, characterized in that: The invention also includes a heat exchange system, wherein the heat exchange system includes a heat exchange chamber (4) connected to the cyclone separator (3) and a heat pack (5) connected to the outer wall of the combustion chamber (1) through a pipeline system. The heat exchange chamber (4) is used to perform heat exchange on the separated flue gas, and the heat pack (5) is used to collect and output steam.

Citation Information

Patent Citations

  • Compaction device preventing odor emission for solid waste treatment

    CN110624668A

  • Garbage drying processing system for domestic garbage incineration power plant

    CN111678146A

  • Refuse treatment center burn burning furnace

    CN207049937U

  • Conveying equipment for syrup

    CN220164956U