A high-temperature particulate matter waste heat recycling device

Abstract

The utility model discloses a kind of high-temperature particulate matter waste heat recycling device, including shell, the shell is sequentially provided with preheating zone and high-temperature zone from bottom to top in, the heat absorption pipe is respectively arranged in preheating zone and high-temperature zone, the import and export of preheating zone heat absorption pipe are connected with the header of preheating zone, the import and export of high-temperature zone heat absorption pipe are connected with the header of high-temperature zone, the header of preheating zone and the header of high-temperature zone are all arranged in the outside of shell, and there is gap between preheating zone heat absorption pipe and between high-temperature zone heat absorption pipe;The top of shell is provided with slag inlet, and the bottom of shell is provided with slag outlet;The utility model can improve the recycling efficiency of high-temperature particulate matter, and does not need to set up additional power equipment, reduce cost.

Description

Technical Field

[0001] This utility model belongs to the technical field of waste heat recovery and utilization devices, specifically relating to a high-temperature particulate waste heat recovery and utilization device. Background Technology

[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.

[0003] Industrial production frequently generates large quantities of high-temperature products, byproducts, and waste residues, often in the form of solid particles. These particles contain significant waste heat resources. Currently, industries such as metallurgy and building materials generate over 4.5 billion tons of high-temperature solid bulk materials annually, containing waste heat resources equivalent to over 100 million tons of standard coal. Most high-temperature solid bulk materials in industrial production are mixtures of particles with a wide particle size distribution, exhibiting large density variations and a broad particle size range (generally from μm to mm). The physical properties of particles of different sizes vary greatly, resulting in different heat transfer coefficients and heat transfer patterns, leading to significant challenges in waste heat recovery and low efficiency.

[0004] To improve the efficiency of waste heat recovery from high-temperature particulate matter, Chinese utility model patent CN220304326U discloses a waste heat recovery device for hot slag, including a waste heat recovery box with a cooling box inside. A spray assembly is installed between the waste heat recovery box and the cooling box, and a stirring assembly is installed inside the cooling box. The hot slag to be recovered is placed into the cooling box, and cooling water is sprayed between the waste heat recovery box and the cooling box through the spray assembly to cool the hot slag in the cooling box and recover waste heat. The stirring assembly stirs the hot slag to release heat and improve the waste heat recovery efficiency. However, the device has the following problems: First, the heat exchange between the hot slag and the cooling water is through the wall of the cooling tank, and the direct contact heat exchange area is small, resulting in poor heat exchange effect; second, the spray component only cools the wall of the cooling tank. Although there is a stirring component in the cooling tank, the cooling tank has a large volume, and it takes a long time to completely transfer heat to the cooling tank, resulting in low processing efficiency of hot slag; third, the stirring component requires a power source, which increases the cost. Utility Model Content

[0005] The purpose of this invention is to provide a high-temperature particulate matter waste heat recovery and utilization device, which can improve the recovery and utilization efficiency of high-temperature particulate matter and does not require additional power equipment, thus reducing costs.

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

[0007] In a first aspect, embodiments of this utility model provide a high-temperature particulate waste heat recovery and utilization device, comprising a shell, wherein a preheating zone and a high-temperature zone are arranged sequentially from bottom to top inside the shell, and each of the preheating zone and the high-temperature zone is provided with a heat absorption tube. The inlet and outlet of the heat absorption tube in the preheating zone are connected to the header of the preheating zone, and the inlet and outlet of the heat absorption tube in the high-temperature zone are connected to the header of the high-temperature zone. The headers of the preheating zone and the high-temperature zone are both located outside the shell, and gaps are left between the heat absorption tubes in the preheating zone and between the heat absorption tubes in the high-temperature zone. A slag inlet is provided at the top of the shell, and a slag outlet is provided at the bottom of the shell.

[0008] As a further technical solution, when both the heat absorption pipe in the preheating zone and the heat absorption pipe in the high-temperature zone adopt U-shaped pipes, the header in the preheating zone includes a horizontal lower header, a vertical lower header, a vertical upper header, and a horizontal upper header; the header in the high-temperature zone includes a horizontal lower header, a vertical lower header, a vertical upper header, and a horizontal upper header.

[0009] As a further technical solution, the horizontal lower header of the preheating zone is provided with a water inlet, the horizontal lower header of the preheating zone is connected to the vertical lower header of the preheating zone, the vertical lower header of the preheating zone is connected to the inlet of the heat absorption pipe of the preheating zone, the vertical upper header of the preheating zone is connected to the outlet of the heat absorption pipe of the preheating zone, and the horizontal upper header of the preheating zone is provided with a water outlet.

[0010] As a further technical solution, the upper horizontal header of the preheating zone is connected to the steam drum via a riser pipe, the steam drum is connected to the lower horizontal header of the high-temperature zone via a downcomer pipe, and the lower horizontal header of the high-temperature zone is connected to the steam drum via a steam pipe.

[0011] As a further technical solution, the upper horizontal header of the preheating zone is connected to the water tank via a pipeline, the outlet of the water tank is connected to the steam drum via a riser pipe, and a booster pump is installed at the outlet of the water tank; the steam drum is connected to the lower horizontal header of the high-temperature zone via a downcomer pipe, and the lower horizontal header of the high-temperature zone is connected to the steam drum via a steam pipe.

[0012] As a further technical solution, a steam outlet is provided at the top of the steam drum.

[0013] As a further technical solution, when the heat absorption pipe in the preheating zone is a straight pipe and the heat absorption pipe in the high-temperature zone is a U-shaped pipe, protective plates are installed on both sides of the U-shaped heat absorption pipe to prevent particulate matter from accumulating. The headers in the preheating zone include a horizontal lower header and a horizontal upper header. The headers in the high-temperature zone include a horizontal lower header, a vertical lower header, a vertical upper header, and a horizontal upper header.

[0014] As a further technical solution, when both the heat absorption pipe in the preheating zone and the heat absorption pipe in the high-temperature zone adopt S-shaped pipes, protective plates are installed on both sides of the S-shaped heat absorption pipes to prevent particulate matter from accumulating. The header in the preheating zone includes a horizontal lower header and a horizontal upper header; the header in the high-temperature zone includes a horizontal lower header and a horizontal upper header.

[0015] As a further technical solution, the lower horizontal header of the preheating zone is connected to the inlet of the preheating zone heat absorption pipe, and the upper horizontal header of the preheating zone is connected to the outlet of the preheating zone heat absorption pipe.

[0016] As a further technical solution, the cross-section of the shell is circular or rectangular.

[0017] The beneficial effects of the above-described embodiments of this utility model are as follows:

[0018] The high-temperature particulate matter waste heat recovery and utilization device provided by this utility model can achieve two-stage recovery of particulate matter waste heat by setting up a preheating zone and a high-temperature zone. It can heat the cooling water into steam for recovery and utilization, thereby improving the waste heat recovery and utilization rate. By setting up heat absorption tubes with gaps in the preheating zone and the high-temperature zone, the particulate matter can pass through the gaps between the heat absorption tubes under the action of gravity, come into contact with the heat absorption tubes, and exchange heat with the cooling water inside the heat absorption tubes. Compared with the existing devices, there is no need to set up an additional stirring mechanism, thus reducing the investment cost.

[0019] The high-temperature particulate matter waste heat recovery device provided by this utility model uses heat-absorbing tubes in the preheating zone and high-temperature zone to distribute water through corresponding manifolds, which can ensure the uniformity of temperature distribution among the heat-absorbing tubes. At the same time, the heat-absorbing tubes can disperse the particulate matter, so that the waste heat of the particulate matter can be fully dissipated, thereby improving the waste heat recovery efficiency. In addition, the heat-absorbing tubes in the preheating zone and high-temperature zone can adopt heat-absorbing tubes with different structural forms, so that the gaps between the heat-absorbing tubes can be staggered, increasing the residence time of the particulate matter and further improving the waste heat recovery efficiency.

[0020] The high-temperature particulate matter waste heat recovery and utilization device provided by this utility model is equipped with a water tank, a pressurizing pump and a steam drum between the preheating zone and the high-temperature zone. The water tank can play a buffer role, thereby reducing the water pressure entering the preheating zone and reducing the water pressure on the heat absorption tube in the preheating zone. The pressurizing pump plays a pressurizing role, ensuring that the steam generated in the high-temperature zone can enter the steam drum. The steam drum can play a role in steam-water separation and steam purification, sending the water that has not been heated into steam back into the high-temperature zone for heating, thus ensuring the steam output rate. Attached Figure Description

[0021] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0022] Figure 1 This is a schematic diagram of the high-temperature particulate matter waste heat recovery and utilization device according to Embodiment 1 of this utility model;

[0023] Figure 2 yes Figure 1 Cross-sectional view at point AA;

[0024] Figure 3 yes Figure 1 Top view of the section at point AA, facing downwards;

[0025] Figure 4 This is a schematic diagram of the high-temperature particulate matter waste heat recovery and utilization device according to Embodiment 2 of this utility model;

[0026] Figure 5 This is a schematic diagram of the high-temperature particulate matter waste heat recovery and utilization device according to Embodiment 3 of this utility model;

[0027] Figure 6 This is a top view of the high-temperature particulate waste heat recovery and utilization device of Embodiment 3 of this utility model;

[0028] Figure 7 This is a schematic diagram of the high-temperature particulate matter waste heat recovery and utilization device of Embodiment 4 of this utility model;

[0029] Figure 8 This is a schematic diagram of the high-temperature particulate matter waste heat recovery and utilization device according to Embodiment 5 of this utility model;

[0030] Figure 9 This is a top view of the high-temperature particulate waste heat recovery and utilization device of Embodiments 4 and 5 of this utility model.

[0031] The diagram is for illustrative purposes only.

[0032] The components are as follows: 1. Shell; 101. Slag outlet; 2. High-temperature zone; 3. Preheating zone; 4. Preheating zone heat absorption pipe; 5. High-temperature zone horizontal lower header; 6. High-temperature zone vertical lower header; 7. High-temperature zone vertical upper header; 8. High-temperature zone horizontal upper header; 9. Preheating zone horizontal lower header; 10. Preheating zone vertical lower header; 11. Preheating zone vertical upper header; 12. Preheating zone horizontal upper header; 13. Ascending pipe; 14. Downcomer; 15. Steam drum; 16. Steam pipe; 17. Steam outlet; 18. High-temperature zone heat absorption pipe; 19. Water tank; 20. Booster pump; 21. Preheating zone vertical header; 22. High-temperature zone vertical header. Detailed Implementation

[0033] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0034] Example 1

[0035] In a typical embodiment of this utility model, such as Figure 1-3 As shown, a high-temperature particulate matter waste heat recovery and utilization device is provided, including a shell 1. A preheating zone 3 and a high-temperature zone 2 are arranged sequentially from bottom to top inside the shell 1. Each of the preheating zone 3 and the high-temperature zone 2 is provided with a heat absorption tube. The inlet and outlet of the heat absorption tube 4 in the preheating zone are connected to the header of the preheating zone. The inlet and outlet of the heat absorption tube 18 in the high-temperature zone are connected to the header of the high-temperature zone. The headers of the preheating zone and the high-temperature zone are both located outside the shell 1. Gaps are left between the heat absorption tubes 4 in the preheating zone and between the heat absorption tubes 18 in the high-temperature zone. A slag inlet is provided at the top of the shell 1, and a slag outlet 101 is provided at the bottom of the shell 1.

[0036] In this embodiment, both the heat absorption pipe 4 in the preheating zone and the heat absorption pipe 18 in the high-temperature zone are U-shaped pipes. The headers in the preheating zone include a horizontal lower header 9, a vertical lower header 10, a vertical upper header 11, and a horizontal upper header 12. The headers in the high-temperature zone include a horizontal lower header 5, a vertical lower header 6, a vertical upper header 7, and a horizontal upper header 8.

[0037] Furthermore, the horizontal lower header 9 of the preheating zone is provided with a water inlet, the horizontal lower header 9 of the preheating zone is connected to the vertical lower header 10 of the preheating zone, the vertical lower header 10 of the preheating zone is connected to the inlet of the preheating zone heat absorption pipe 4, the vertical upper header 11 of the preheating zone is connected to the outlet of the preheating zone heat absorption pipe 4, and the horizontal upper header 12 of the preheating zone is provided with a water outlet. The horizontal lower header 5 of the high-temperature zone is provided with a water inlet, the horizontal lower header 5 of the high-temperature zone is connected to the vertical lower header 6 of the high-temperature zone, the vertical lower header 6 of the high-temperature zone is connected to the inlet of the high-temperature zone heat absorption pipe 18, the vertical upper header 7 of the high-temperature zone is connected to the outlet of the high-temperature zone heat absorption pipe 18, and the horizontal upper header 8 of the high-temperature zone is provided with a steam outlet 17.

[0038] Furthermore, the outlet of the upper horizontal header 12 in the preheating zone is connected to the steam drum 15 via a riser pipe 13. The steam drum 15 is connected to the lower horizontal header 5 in the high-temperature zone via a downcomer pipe 14. The lower horizontal header 5 in the high-temperature zone is connected to the steam drum 15 via a steam pipe 16. A steam outlet 17 is provided at the top of the steam drum 15. As a pressure vessel, the steam drum 15 can perform steam-water separation and steam purification. The steam drum 15 used in this embodiment has an existing structure, and the steam discharged from the steam drum 15 is supplied to the heat-using unit.

[0039] The shell 1 of the high-temperature particulate waste heat recovery and utilization device can be circular, rectangular or square. The shape of the corresponding manifold is set according to the shape of the shell 1. For example, in this embodiment, the shell 1 is circular. Then, the upper horizontal manifold 8 of the high-temperature zone, the lower horizontal manifold 5 of the high-temperature zone, the upper horizontal manifold 12 of the preheating zone and the upper horizontal manifold 12 of the preheating zone are set in a ring shape and located outside the shell 1.

[0040] The working principle of the high-temperature particulate matter waste heat recovery and utilization device provided in this embodiment is as follows:

[0041] The high-temperature particulate matter to be recovered for waste heat enters the interior of the shell 1 through the slag inlet at the top of the shell 1. Inside the shell 1, the high-temperature particulate matter passes through the gap between the heat absorption tubes 18 in the high-temperature zone and the gap between the heat absorption tubes 4 in the preheating zone from top to bottom under the action of gravity, and exchanges heat with the cooling water in the heat absorption tubes to realize the recovery of heat from the high-temperature particulate matter. The cooled particulate matter is discharged from the slag outlet 101 at the bottom of the shell 1.

[0042] Cooling water enters the preheating zone horizontal lower header 9 through the inlet. Under the water distribution function of the preheating zone horizontal lower header 9, it enters each preheating zone vertical lower header 10. Under the water distribution function of the preheating zone vertical lower header 10, it enters multiple U-shaped heat absorption pipes. Water exiting the U-shaped heat absorption pipes enters multiple preheating zone vertical upper headers 11, and after being collected by multiple preheating zone vertical upper headers 11, it enters the preheating zone horizontal upper header 12, exiting through the outlet of the preheating zone horizontal upper header 12. The water enters the riser pipe 13 and then the steam drum 15. The water in the steam drum 15 enters the lower header 5 of the high-temperature zone through the downcomer pipe 14. Then, following the same flow pattern as the heat absorber pipe 4 in the preheating zone, it is discharged from the outlet of the upper header 8 of the high-temperature zone and enters the steam pipe 16. The fluid flowing in the steam pipe 16 may be a mixture of steam and saturated water. The steam entering the steam drum 15 is discharged from the steam outlet 17 at the top of the steam drum 15. The saturated water re-enters the heat absorber pipe 18 of the high-temperature zone through the downcomer pipe 14 for heating.

[0043] Example 2

[0044] In a typical embodiment of this utility model, such as Figure 4As shown, a high-temperature particulate matter waste heat recovery and utilization device is provided, including a shell 1. A preheating zone and a high-temperature zone are sequentially arranged from bottom to top within the shell 1. The preheating zone and the high-temperature zone can be a single section or multiple sections. Protective plates can be installed on both sides of the transverse portion of the heat absorption tubes in the high-temperature zone and the low-temperature zone to prevent particulate matter from accumulating. Alternatively, the high-temperature zone and the low-temperature zone can be configured with... Figure 6 The preheating zone and the high-temperature zone are each equipped with heat absorption pipes. The inlet and outlet of the heat absorption pipe 4 in the preheating zone are connected to the header of the preheating zone, and the inlet and outlet of the heat absorption pipe 18 in the high-temperature zone are connected to the header of the high-temperature zone. The headers of the preheating zone and the high-temperature zone are both located outside the shell 1. Gaps are left between the heat absorption pipes 4 in the preheating zone and between the heat absorption pipes 18 in the high-temperature zone. A slag inlet is provided at the top of the shell 1, and a slag outlet 101 is provided at the bottom of the shell 1.

[0045] In Example 1, the cooling water needs to be boosted to a higher pressure by a booster pump 20 before entering the lower horizontal header 9 in the preheating zone to ensure that steam can enter the steam drum 15 from the outlet of the lower horizontal header 5 in the high-temperature zone. This will cause the heat absorption pipe 4 in the preheating zone to bear a large water pressure. To solve the above problem, this example proposes to connect the upper horizontal header 12 in the preheating zone to the water tank 19 through a pipe. The outlet of the water tank 19 is connected to the steam drum 15 through the riser pipe 12. A booster pump 20 is installed at the outlet of the water tank 19. The steam drum 15 is connected to the lower horizontal header 5 in the high-temperature zone through the downcomer pipe 14. The lower horizontal header 5 in the high-temperature zone is connected to the steam drum 15 through the steam pipe 16.

[0046] The water tank 19 serves as a buffer. The water in the water tank 19 is pressurized by the booster pump 20 and then enters the steam drum 15. This reduces the pressure of the cooling water entering the preheating zone header 9 and reduces the water pressure on the heat absorption pipe 4 in the preheating zone.

[0047] At this time, if the preheating zone heat absorber pipe 4 and the high temperature zone heat absorber pipe 18 adopt U-shaped pipes, the preheating zone vertical lower header 10 and the preheating zone vertical upper header 11 can be connected to form a preheating zone vertical header 21, and the high temperature zone vertical lower header 6 and the high temperature zone vertical upper header 7 can be connected to form a high temperature zone vertical header 22. At this time, the cooling water of the preheating zone horizontal lower header 9 passes through the preheating zone heat absorber pipe 4 and the preheating zone vertical header 21 from bottom to top. Similarly, the cooling water of the high temperature zone horizontal lower header 5 passes through the high temperature zone heat absorber pipe 18 and the high temperature zone vertical header 22 from bottom to top.

[0048] The high-temperature particulate matter waste heat recovery and utilization device provided in this embodiment has the same structure and working principle as that in Embodiment 1.

[0049] Example 3

[0050] In a typical embodiment of this utility model, such as Figure 5 and Figure 6 As shown, a high-temperature particulate matter waste heat recovery and utilization device is provided, including a shell 1. A preheating zone and a high-temperature zone are arranged sequentially from bottom to top inside the shell 1. Each of the preheating zone and the high-temperature zone is provided with a heat absorption tube. The inlet and outlet of the heat absorption tube 4 in the preheating zone are connected to the header of the preheating zone. The inlet and outlet of the heat absorption tube 18 in the high-temperature zone are connected to the header of the high-temperature zone. The headers of the preheating zone and the high-temperature zone are both located outside the shell 1. Gaps are left between the heat absorption tubes 4 in the preheating zone and between the heat absorption tubes 18 in the high-temperature zone. A slag inlet is provided at the top of the shell 1, and a slag outlet 101 is provided at the bottom of the shell 1.

[0051] In this embodiment, when the preheating zone heat absorption pipe 4 is a straight pipe and the high-temperature zone heat absorption pipe 18 is a U-shaped pipe, the headers in the preheating zone include a horizontal lower header 9 and a horizontal upper header 12; the headers in the high-temperature zone include a horizontal lower header 5, a vertical lower header 6, a vertical upper header 7, and a horizontal upper header 8, thereby reducing the use of headers. At the same time, the use of branch pipes and U-shaped pipes in combination allows the heat absorption pipes in the preheating zone and the high-temperature zone to be staggered, thereby increasing the length of the flow path and the flow time of particulate matter and improving the waste heat recovery efficiency.

[0052] Example 4

[0053] In a typical embodiment of this utility model, such as Figure 7 and Figure 9 As shown, a high-temperature particulate waste heat recovery and utilization device is provided, including a shell 1. A preheating zone and a high-temperature zone are arranged sequentially from bottom to top within the shell 1. The preheating zone and the high-temperature zone can be a single section or multiple sections. Protective plates can be installed on both sides of the transverse portion of the heat absorption tubes in the high-temperature zone and the low-temperature zone to prevent particulate matter from accumulating. Alternatively, the high-temperature zone and the low-temperature zone can be configured with... Figure 6 The preheating zone and the high-temperature zone are each equipped with heat absorption pipes. The inlet and outlet of the heat absorption pipe 4 in the preheating zone are connected to the header of the preheating zone, and the inlet and outlet of the heat absorption pipe 18 in the high-temperature zone are connected to the header of the high-temperature zone. The headers of the preheating zone and the high-temperature zone are both located outside the shell 1. Gaps are left between the heat absorption pipes 4 in the preheating zone and between the heat absorption pipes 18 in the high-temperature zone. A slag inlet is provided at the top of the shell 1, and a slag outlet 101 is provided at the bottom of the shell 1.

[0054] The difference between this embodiment and Embodiment 1 is that the cross-section of the shell 1 in this embodiment is rectangular, and both the heat absorption pipe 4 in the preheating zone and the heat absorption pipe 18 in the high-temperature zone adopt S-shaped pipes. At this time, the headers in the preheating zone include a lower horizontal header 9 and an upper horizontal header 12; the headers in the high-temperature zone include a lower horizontal header 5 and an upper horizontal header 8, further reducing the use of headers. When the cooling water flows through the preheating zone, it enters multiple S-shaped pipes through the lower horizontal header 9 and then enters the upper horizontal header 12.

[0055] Example 5

[0056] In a typical embodiment of this utility model, such as Figure 8 and Figure 9 As shown, a high-temperature particulate matter waste heat recovery and utilization device is provided, including a shell 1. A preheating zone and a high-temperature zone are sequentially arranged from bottom to top within the shell 1. The preheating zone and the high-temperature zone can be a single section or multiple sections. Protective plates can be installed on both sides of the transverse portion of the heat absorption tubes in the high-temperature zone and the low-temperature zone to prevent particulate matter from accumulating. Alternatively, the high-temperature zone and the low-temperature zone can be configured with... Figure 6 The preheating zone and the high-temperature zone are each equipped with heat absorption pipes. The inlet and outlet of the heat absorption pipe 4 in the preheating zone are connected to the header of the preheating zone, and the inlet and outlet of the heat absorption pipe 18 in the high-temperature zone are connected to the header of the high-temperature zone. The headers of the preheating zone and the high-temperature zone are both located outside the shell 1. Gaps are left between the heat absorption pipes 4 in the preheating zone and between the heat absorption pipes 18 in the high-temperature zone. A slag inlet is provided at the top of the shell 1, and a slag outlet 101 is provided at the bottom of the shell 1.

[0057] The structure of the heat absorption tube used in this embodiment is the same as that in embodiment 4. The difference is that, in order to reduce the pressure on the heat absorption tube 4 in the preheating zone, a water tank 19 and a pressure pump 20 are provided.

[0058] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-temperature particulate matter waste heat recovery and utilization device, characterized in that, The device includes a shell, within which a preheating zone and a high-temperature zone are arranged sequentially from bottom to top. Each of the preheating and high-temperature zones is equipped with a heat absorption tube. The inlet and outlet of the heat absorption tube in the preheating zone are connected to the header of the preheating zone, and the inlet and outlet of the heat absorption tube in the high-temperature zone are connected to the header of the high-temperature zone. Both the headers of the preheating zone and the high-temperature zone are located outside the shell. Gaps are left between the heat absorption tubes in the preheating zone and the heat absorption tubes in the high-temperature zone. A slag inlet is provided at the top of the shell, and a slag outlet is provided at the bottom of the shell.

2. The high-temperature particulate matter waste heat recovery and utilization device as described in claim 1, characterized in that, When both the heat absorption pipes in the preheating zone and the heat absorption pipes in the high-temperature zone are U-shaped tubes, the headers in the preheating zone include a horizontal lower header, a vertical lower header, a vertical upper header, and a horizontal upper header; the headers in the high-temperature zone include a horizontal lower header, a vertical lower header, a vertical upper header, and a horizontal upper header.

3. The high-temperature particulate matter waste heat recovery and utilization device as described in claim 2, characterized in that, The preheating zone horizontal lower header is equipped with a water inlet, the preheating zone horizontal lower header is connected to the preheating zone vertical lower header, the preheating zone vertical lower header is connected to the inlet of the preheating zone heat absorption pipe, the preheating zone vertical upper header is connected to the outlet of the preheating zone heat absorption pipe, and the preheating zone horizontal upper header is equipped with a water outlet.

4. The high-temperature particulate matter waste heat recovery and utilization device as described in claim 2, characterized in that, The upper horizontal header of the preheating zone is connected to the steam drum via a riser pipe, the steam drum is connected to the lower horizontal header of the high-temperature zone via a downcomer pipe, and the lower horizontal header of the high-temperature zone is connected to the steam drum via a steam pipe.

5. The high-temperature particulate matter waste heat recovery and utilization device as described in claim 2, characterized in that, The upper horizontal header of the preheating zone is connected to the water tank via a pipe, and the outlet of the water tank is connected to the steam drum via a riser pipe. A booster pump is installed at the outlet of the water tank. The steam drum is connected to the lower horizontal header of the high-temperature zone via a downcomer pipe, and the lower horizontal header of the high-temperature zone is connected to the steam drum via a steam pipe.

6. The high-temperature particulate matter waste heat recovery and utilization device as described in claim 4 or 5, characterized in that, A steam outlet is provided at the top of the steam drum.

7. The high-temperature particulate matter waste heat recovery and utilization device as described in claim 1, characterized in that, The heat absorption pipe in the preheating zone is a straight pipe, and when the heat absorption pipe in the high-temperature zone is a U-shaped pipe, protective plates are installed on both sides of the transverse part of the U-shaped pipe to prevent particulate matter from accumulating. The headers in the preheating zone include a horizontal lower header and a horizontal upper header. The headers in the high-temperature zone include a horizontal lower header, a vertical lower header, a vertical upper header, and a horizontal upper header.

8. The high-temperature particulate matter waste heat recovery and utilization device as described in claim 1, characterized in that, When both the heat absorption pipes in the preheating zone and the heat absorption pipes in the high-temperature zone are S-shaped pipes, protective plates are installed on both sides of the S-shaped heat absorption pipes to prevent particulate matter from accumulating. The headers in the preheating zone include a horizontal lower header and a horizontal upper header; the headers in the high-temperature zone include a horizontal lower header and a horizontal upper header.

9. The high-temperature particulate matter waste heat recovery and utilization device as described in claim 8, characterized in that, The lower horizontal header of the preheating zone is connected to the inlet of the preheating zone heat absorption pipe, and the upper horizontal header of the preheating zone is connected to the outlet of the preheating zone heat absorption pipe.

10. The high-temperature particulate matter waste heat recovery and utilization device as described in claim 1, characterized in that, The cross-section of the shell is circular or rectangular.

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