Waste heat recycling device for waste incineration power generation

Abstract

The utility model relates to the technical field of waste heat recycling devices, in particular to a waste incineration power generation waste heat recycling device which comprises a generator, a steam turbine and a heat preservation conveying pipe, a heat preservation box assembly is fixedly connected to the right end of the heat preservation conveying pipe, and a first heat exchange assembly and a second heat exchange assembly are installed on the inner side of the heat preservation box assembly. The heat preservation box assembly comprises a heat preservation box shell, a material box is fixedly connected to the rear end of the heat preservation box shell, a partition plate is fixedly connected to the inner side of the material box, a discharging opening is formed in the inner side of the partition plate, and a folding plate is fixedly connected to the right side of the heat preservation box shell and fixedly connected with a machine shell of a driving motor. According to the waste residue recycling device, waste residues are crushed, the contact area between the waste residues and the heat exchange component is increased, efficient recycling of heat inside and outside the waste residues is achieved, the energy utilization efficiency is improved, the service life of equipment is prolonged, and operation safety is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of waste heat recovery and utilization devices, specifically a waste heat recovery and utilization device for waste incineration power generation. Background Technology

[0002] Waste-to-energy waste heat recovery and utilization device is a device used to recover high-temperature flue gas or other waste heat resources generated during waste incineration. Through heat exchange technology, this waste heat is converted into usable heat energy or electrical energy, which can be used to heat condensate, demineralized water, boiler primary air, etc., or to generate electricity through technologies such as organic Rankine cycle. This device can not only improve energy utilization efficiency and reduce the energy consumption and operating costs of waste-to-energy plants, but also reduce carbon emissions, and has significant economic and environmental benefits.

[0003] During waste incineration, the temperature of the waste residue is usually high, especially in the high-temperature environment of the incinerator. Even after being discharged from the incinerator, the temperature of the waste residue may still reach several hundred degrees Celsius. These high-temperature waste residues can transfer heat to other media through heat exchange, thereby realizing the recovery and utilization of heat.

[0004] For waste residue after incineration of bulk waste, if only the outside of the waste residue is preheated during preheating and recovery, the heat recovery will be incomplete, and the internal heat cannot be effectively utilized, thereby reducing the heat recovery efficiency. At the same time, the heat inside the waste residue may be gradually lost during subsequent processing, which not only wastes energy but also causes local overheating, affecting the operational safety and service life of the equipment. Therefore, a waste incineration power generation waste heat recovery and utilization device is proposed to address the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a waste incineration power generation waste heat recovery and utilization device to solve the problem that if only the outside of the waste residue is preheated and recovered, the heat recovery will be incomplete and the internal heat cannot be effectively utilized, thereby reducing the heat recovery efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A waste incineration power generation waste heat recovery and utilization device includes a generator, a steam turbine, and an insulated conveying pipe. An insulated box assembly is fixedly connected to the right end of the insulated conveying pipe. A first heat exchange assembly and a second heat exchange assembly are installed inside the insulated box assembly. The insulated box assembly includes an insulated box shell, a material box fixedly connected to the rear end of the insulated box shell, a partition fixedly connected to the inside of the material box, and a material discharge port opened on the inside of the partition. A folding plate is fixedly connected to the right side of the insulated box shell, and the folding plate is fixedly connected to the housing of a drive motor. A gear is fixedly connected to the end of the main shaft of the drive motor. The first heat exchange assembly includes a rotating roller, a crushing blade and a sprocket fixedly connected to the outside of the rotating roller, the sprocket meshing with a chain on its outside, a welding block fixedly connected to the outside of the chain, and a copper pipe fixedly connected to the inside of the welding block. The rotating roller is rotatably connected to the inside of the material box.

[0008] As a further optimization of this utility model, the following features are provided: the front and rear ends of the material box are provided with connecting slots; the inner side of the insulation box shell is a hollow structure; the inner side of the material box is connected to the inner side of the insulation box shell through the connecting slots; and the upper end of the material box is a through structure.

[0009] As a further optimization of this utility model, the following features are provided: a through hole is provided at the left end of the insulated box shell; the left side of the insulated box shell is fixedly connected to the right side of the insulated conveying pipe; a filter screen is fixedly connected to the inside of the through hole of the insulated box shell; and the inside of the insulated box shell is connected to the inside of the insulated conveying pipe through the through hole.

[0010] As a further optimization of this utility model, a fan is fixedly connected to the right side of the insulation box shell, and the inner side of the fan is connected to the inner side of the insulation box shell.

[0011] As a further optimization of this utility model, the material discharge port extends vertically through the interior of the partition, and the material discharge port is distributed near the front and rear ends of the partition. The material box has a notch at the right end near the receiving box, and the receiving box is inserted into the interior of the material box through the notch. The receiving box is located at the lower end of the partition.

[0012] As a further optimization of this utility model, the number of gears is two, the two gears mesh with each other, the inner side of the gear is fixedly connected to the right side of the rotating roller, the structure of the first heat exchange assembly is the same as the structure of the second heat exchange assembly, and the rear gear is fixedly connected to the rotating roller of the second heat exchange assembly.

[0013] As a further optimization of this utility model, the first heat exchange component is provided with two rotating rollers. The front rotating roller is rotatably connected to the inner side of the heat preservation box shell. There are multiple copper tubes. The crushing blade is arranged between the copper tubes. There is a gap between the lower end of the lower copper tube and the partition plate. The inside of the copper tube is a hollow structure.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, by setting up an insulation box assembly and a first heat exchange assembly, the device significantly increases the contact area between the waste residue and the heat exchange components through crushing the waste residue, so that the heat from both the outside and inside of the waste residue can be effectively recovered. This improvement not only improves the heat recovery efficiency, but also reduces the problem of excessively high local temperature caused by heat loss inside the waste residue, thereby extending the service life of the equipment and ensuring operational safety. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the insulated box assembly of this utility model;

[0018] Figure 3 This is a schematic diagram of the partition structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the insulated box shell of this utility model;

[0020] Figure 5 This is a schematic diagram of the drive motor structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the second heat exchange component of this utility model;

[0022] Figure 7 This is a schematic diagram of the rotating roller structure of this utility model;

[0023] Figure 8 This utility model Figure 7 A schematic diagram of the structure at point A.

[0024] In the diagram: 1. Generator; 2. Steam turbine; 3. Insulated conveying pipe;

[0025] 4. Insulated box assembly; 41. Insulated box shell; 42. Material bin; 43. Connecting channel; 44. Partition; 45. Receiving bin; 46. Drive motor; 47. Discharge port; 48. Gear; 49. Folding plate;

[0026] 5. First heat exchange assembly; 51. Rotary roller; 52. Crusher blade; 53. Sprocket; 54. Chain; 55. Welding block; 56. Copper pipe;

[0027] 6. Second heat exchange component; 7. Fan. Detailed Implementation

[0028] 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.

[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0030] Please see Figure 1-8 This utility model provides a technical solution:

[0031] A waste incineration power generation waste heat recovery and utilization device includes a generator 1, a steam turbine 2, and an insulated conveying pipe 3. An insulated box assembly 4 is fixedly connected to the right end of the insulated conveying pipe 3. A first heat exchange assembly 5 and a second heat exchange assembly 6 are installed inside the insulated box assembly 4. The insulated box assembly 4 includes an insulated box shell 41. A material box 42 is fixedly connected to the rear end of the insulated box shell 41. A partition 44 is fixedly connected to the inside of the material box 42. A material discharge port 47 is opened inside the partition 44. A folding plate 49 is fixedly connected to the right side. The folding plate 49 is fixedly connected to the housing of the drive motor 46. A gear 48 is fixedly connected to the end of the main shaft of the drive motor 46. The first heat exchange assembly 5 includes a rotating roller 51. A crushing blade 52 and a sprocket 53 are fixedly connected to the outside of the rotating roller 51. The outside of the sprocket 53 meshes with a chain 54. A welding block 55 is fixedly connected to the outside of the chain 54. A copper tube 56 is fixedly connected to the inside of the welding block 55. The rotating roller 51 is rotatably connected to the inside of the material box 42.

[0032] As a further implementation of this solution, the front and rear ends of the material box 42 are provided with connecting grooves 43, the inner side of the insulation box shell 41 is a hollow structure, the inner side of the material box 42 is connected to the inner side of the insulation box shell 41 through the connecting grooves 43, and the upper end of the material box 42 is a through structure. Through the above settings, the efficient conduction and recovery of heat from the waste residue is achieved through the connecting grooves 43 at the front and rear ends of the material box 42 and the hollow structure of the insulation box shell 41. At the same time, the through structure at the upper end of the material box 42 facilitates the transportation of waste residue.

[0033] As a further implementation of this solution, a through hole is provided at the left end of the insulation box shell 41. The left side of the insulation box shell 41 is fixedly connected to the right side of the insulation conveying pipe 3. A filter screen is fixedly connected to the inside of the through hole of the insulation box shell 41. The inside of the insulation box shell 41 is connected to the inside of the insulation conveying pipe 3 through the through hole. Through the above settings, the design of the through hole and the filter screen can effectively filter impurities in the waste residue, prevent impurities from entering the inside of the insulation conveying pipe 3, ensure the normal operation of the equipment, and improve the purity and efficiency of heat recovery.

[0034] As a further implementation of this solution, a fan 7 is fixedly connected to the right side of the insulation box shell 41. The inner side of the fan 7 is connected to the inner side of the insulation box shell 41. Through the above-mentioned arrangement, the connection design between the fan 7 and the insulation box shell 41 can blow the hot air in the waste residue through the fan 7, further improving the heat recovery and utilization rate, while reducing the retention of hot air inside the equipment and reducing the heat loss of the equipment.

[0035] As a further implementation of this solution, the discharge port 47 extends vertically through the interior of the partition 44. The discharge port 47 is distributed near the front and rear ends of the partition 44. The material box 42 has a notch at the right end near the receiving box 45. The receiving box 45 is inserted into the interior of the material box 42 through the notch. The receiving box 45 is located at the lower end of the partition 44. With the above arrangement, the waste residue falls through the discharge port 47 into the receiving box 45 for centralized collection.

[0036] As a further implementation of this solution, there are two gears 48, which mesh with each other. The inner side of the gear 48 is fixedly connected to the right side of the rotating roller 51. The structure of the first heat exchange component 5 is the same as that of the second heat exchange component 6. The rear gear 48 is fixedly connected to the rotating roller 51 of the second heat exchange component 6. Through the above settings, the meshing transmission design of the two gears 48 can achieve stable power transmission, drive the rotating roller 51 to rotate, thereby realizing the crushing and conveying of waste residue and improving the efficiency and effect of waste residue heat recovery.

[0037] As a further implementation of this solution, the first heat exchange component 5 is equipped with two rotating rollers 51. The front rotating roller 51 is rotatably connected to the inside of the insulation box shell 41. There are multiple copper tubes 56, and crushing blades 52 are arranged between the copper tubes 56. There is a gap between the lower end of the lower copper tube 56 and the partition plate 44. The inside of the copper tube 56 is hollow. Through the above arrangement, the design of multiple copper tubes 56 and crushing blades 52 can fully crush and transport the waste residue, increase the contact area between the waste residue and the heat exchange component, and improve the completeness of heat recovery. The hollow structure inside the copper tube 56 and the gap between it and the partition plate 44 further optimize the heat transfer effect and improve the operating efficiency and economy of the equipment.

[0038] Workflow: When recovering the residual heat from the waste residue after incineration, the waste residue is conveyed from the top of the hopper 42 into its interior. The waste residue falls onto the upper ends of the copper pipes 56 of the first heat exchange component 5 and the second heat exchange component 6. The spacing between the copper pipes 56 is arranged according to requirements. The drive motor 46 is started, driving the gear 48 to rotate. The gear 48 drives another meshing gear 48 to rotate, which in turn drives the rotating roller 51 to rotate. The rotating roller 51 is connected to the inner side of the hopper 42. The rotation of the rotating roller 51 drives the sprocket 53 and the crushing blade 52 to rotate. The sprocket 53 drives the outer meshing... When the chain 54 rotates, it drives multiple welding blocks 55 and copper pipes 56 to rotate. Waste residue is simultaneously transported through the copper pipes 56 of the first heat exchange assembly 5 and the second heat exchange assembly 6 to the position between them. A gap is provided between the first and second heat exchange assemblies 5 and 6. When the waste residue comes into contact with the crushing blades 52 between the first and second heat exchange assemblies 5 and 6, the crushing blades 52 squeeze and crush the waste residue, thereby pulverizing it. The material is broken into small particles, and the crushed residue falls to the upper end of the partition 44. Because there is a small gap between the copper pipe 56 and the partition 44, the crushed residue comes into contact with the lower copper pipe 56. This increased contact area significantly improves the completeness of heat recovery from the residue. The copper pipe 56 then pushes the residue into the discharge port 47 and the receiving box 45 for centralized recovery. At this point, the lower copper pipe 56 moves into the insulation box shell 41, where a fan... The blowing of gas 7 causes the hot air on the copper tube 56 to enter the steam turbine 2 through the insulated conveying pipe 3. This heat drives the output shaft inside the steam turbine 2 to rotate, and the output shaft of the steam turbine 2 drives the insulated conveying pipe 3 to generate electricity, thereby realizing the recovery of heat from the waste residue. Based on the above principles, when the device recovers waste heat from the waste residue generated by waste incineration, it increases the contact area between the waste residue and the copper tube 56 by crushing the waste residue, so that heat from both the outside and inside of the waste residue can be recovered, improving the heat recovery efficiency, while reducing the impact of excessively high local temperatures on the operational safety and service life of the equipment.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waste incineration power generation waste heat recovery and utilization device, comprising a generator (1), a steam turbine (2), and an insulated conveying pipe (3), characterized in that: The right end of the insulated conveying pipe (3) is fixedly connected to an insulated box assembly (4), and the inner side of the insulated box assembly (4) is equipped with a first heat exchange assembly (5) and a second heat exchange assembly (6). The insulated box assembly (4) includes an insulated box shell (41), a material box (42) is fixedly connected to the rear end of the insulated box shell (41), a partition (44) is fixedly connected to the inner side of the material box (42), a material discharge port (47) is opened on the inner side of the partition (44), a folding plate (49) is fixedly connected to the right side of the insulated box shell (41), the folding plate (49) is fixedly connected to the housing of the drive motor (46), and a gear (48) is fixedly connected to the end of the main shaft of the drive motor (46). The first heat exchange assembly (5) includes a rotating roller (51), a crushing blade (52) and a sprocket (53) are fixedly connected to the outside of the rotating roller (51), the outside of the sprocket (53) is engaged with a chain (54), a welding block (55) is fixedly connected to the outside of the chain (54), and a copper tube (56) is fixedly connected to the inside of the welding block (55). The roller (51) is rotatably connected to the inside of the hopper (42).

2. The waste heat recovery and utilization device for waste incineration power generation according to claim 1, characterized in that: The material box (42) has a connecting groove (43) at both the front and rear ends. The inner side of the insulation box shell (41) is a hollow structure. The inner side of the material box (42) is connected to the inner side of the insulation box shell (41) through the connecting groove (43). The upper end of the material box (42) is a through structure.

3. The waste heat recovery and utilization device for waste incineration power generation according to claim 1, characterized in that: The left end of the heat preservation box shell (41) has a through hole. The left side of the heat preservation box shell (41) is fixedly connected to the right side of the heat preservation conveying pipe (3). A filter screen is fixedly connected to the inside of the through hole of the heat preservation box shell (41). The inside of the heat preservation box shell (41) is connected to the inside of the heat preservation conveying pipe (3) through the through hole.

4. The waste heat recovery and utilization device for waste incineration power generation according to claim 1, characterized in that: A fan (7) is fixedly connected to the right side of the insulated box shell (41), and the inside of the fan (7) is connected to the inside of the insulated box shell (41).

5. The waste heat recovery and utilization device for waste incineration power generation according to claim 1, characterized in that: The material discharge port (47) extends vertically through the interior of the partition (44). The material discharge port (47) is distributed near the front and rear ends of the partition (44). The material box (42) has a notch at the right end near the receiving box (45). The receiving box (45) is inserted into the interior of the material box (42) through the notch. The receiving box (45) is located at the lower end of the partition (44).

6. The waste heat recovery and utilization device for waste incineration power generation according to claim 1, characterized in that: There are two gears (48), which mesh with each other. The inner side of the gear (48) is fixedly connected to the right side of the roller (51). The structure of the first heat exchange assembly (5) is the same as that of the second heat exchange assembly (6). The rear gear (48) is fixedly connected to the roller (51) of the second heat exchange assembly (6).

7. The waste heat recovery and utilization device for waste incineration power generation according to claim 1, characterized in that: The first heat exchange component (5) is provided with two rotating rollers (51). The front rotating roller (51) is rotatably connected to the inner side of the heat preservation box shell (41). There are multiple copper tubes (56). The crushing blade (52) is arranged between the copper tubes (56). There is a gap between the lower end of the lower copper tube (56) and the partition plate (44). The inside of the copper tube (56) is a hollow structure.

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