Waste sintered brick sintering waste heat utilization device

Abstract

This invention discloses a waste heat utilization device for sintering waste bricks, comprising: a collection component connected to the flue gas inlet of a kiln; a flexible guide component connected at one end to the collection component; a diversion component connected at the other end of the flexible guide component; multiple heat exchange components arranged in a circumferential array; and a flexible sleeve connecting each heat exchange component to the diversion component. Each heat exchange component is connected to a disturbance head, which causes deformation of the flexible guide component and movement of the disturbance head when unstable flue gas from the kiln enters the flexible guide component. This invention reduces or avoids sealing failure caused by stress due to installation deviations or thermal expansion and contraction, thereby improving waste heat utilization efficiency.

Description

Technical Field

[0001] This invention relates to the field of waste sintered brick production technology, specifically to a device for utilizing waste heat from sintering of waste sintered bricks. Background Technology

[0002] In the field of waste sintered brick production, the recovery and utilization of waste heat from the high-temperature flue gas at the tail of the sintering kiln is receiving increasing attention. However, traditional waste heat recovery devices have significant shortcomings when applied to this specific scenario. For example, traditional waste heat recovery devices usually use an integral fixed pipeline connected to the kiln, which is difficult to adapt to the installation conditions at the tail of the existing sintering kiln. They are prone to sealing failure or flue gas leakage due to installation deviations or stress caused by thermal expansion and contraction. In addition, the lack of a structure to improve the contact effect between the heat exchange components and the flue gas in the device results in poor heat exchange performance. Summary of the Invention

[0003] To address the aforementioned technical shortcomings, the purpose of this invention is to provide a waste heat utilization device for sintering waste bricks, which reduces or avoids sealing failure caused by installation deviations or stress due to thermal expansion and contraction, while improving waste heat utilization efficiency.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a waste heat utilization device for sintering waste bricks, comprising: a collection component, the collection component being connected to the flue gas inlet of a kiln; a flexible flow guiding component, one end of the flexible flow guiding component being connected to the collection component; a flow diversion component, the flow diversion component being connected to the other end of the flexible flow guiding component; a heat exchange component, having multiple heat exchange components arranged in a circumferential array; and a flexible sleeve, each heat exchange component being connected to the flow diversion component through a flexible sleeve; wherein, a disturbance head is connected to each heat exchange component, and the unstable flue gas generated by the kiln enters the interior of the flexible flow guiding component, causing deformation of the flexible flow guiding component and prompting the disturbance head to move.

[0005] Furthermore, the flexible diversion component includes: connector one, which connects to the collection component; connector two, which connects to the diversion component; and a flexible bellows, which is disposed between connector one and connector two.

[0006] Furthermore, the diversion component includes: a diversion hood, with one end of the diversion hood centrally connected to a connector; a connection port, with multiple connection ports evenly distributed on the diversion hood, each connection port corresponding to a multiple flexible sleeve, and each connection port connected to a corresponding flexible sleeve; and a support component, which supports the diversion hood.

[0007] Furthermore, the support component includes a support ring, and the flow divider is disposed on the support ring.

[0008] Furthermore, the support components also include a support frame, a support ring is mounted on the support frame, and the support frame is provided with fixing holes.

[0009] Furthermore, the heat exchange assembly includes: a conical sleeve, one end of which is connected to a flexible sleeve; a heat exchange tube component, which is disposed inside the conical sleeve; an inlet pipe, which is connected to one end of the heat exchange tube component and penetrates the conical sleeve; an outlet pipe, which is connected to the other end of the heat exchange tube component and penetrates the conical sleeve; and an exhaust pipe, which is connected to the conical sleeve. The inlet pipe introduces the medium to be heated, and the outlet pipe discharges the heated medium.

[0010] Furthermore, the heat exchange tube component includes a spiral tube, one end of which is connected to the liquid inlet pipe and the other end of which is connected to the liquid outlet pipe. The spiral tube is disposed inside the conical sleeve.

[0011] Furthermore, the tapered sleeve includes: a tapered sleeve one, which is connected to a flexible sleeve; a tapered sleeve two, which is coaxially arranged with the tapered sleeve and is connected to an exhaust pipe; and a connecting ring, which is disposed between adjacent ends of the tapered sleeve one and the tapered sleeve two; wherein, a disturbance head is disposed on the outer wall of the tapered sleeve two and is connected to a flexible corrugated pipe.

[0012] Furthermore, the small end of tapered sleeve one and the large end of tapered sleeve two are respectively connected to the inner ring and outer ring of the connecting ring.

[0013] Furthermore, the collection component includes a collection hood, one end of which is provided with a fixing port for connecting to the kiln flue gas inlet, and the other end of the collection hood is connected to a connector.

[0014] The beneficial effects of this invention are as follows.

[0015] 1. The present invention connects the collection hood through a flexible flow guiding component. The fixed port can be set as a circular, elliptical or rectangular transition port according to the cross-sectional shape of the kiln flue gas port. Therefore, it helps to adapt to the installation conditions of the tail of the existing sintering kiln. By utilizing the elasticity of the flexible corrugated pipe, problems such as sealing failure or flue gas leakage caused by installation deviation or thermal expansion and contraction can be reduced or even avoided.

[0016] 2. The flexible sleeve of the present invention is not only used as a flue gas connecting component, but also used to absorb the relative displacement between the diversion hood and the heat exchange component caused by thermal expansion and contraction, installation deviation or flue gas pulsation; while ensuring the flue gas is sealed and connected, it reduces the stress concentration caused by rigid connection.

[0017] 3. When unstable flue gas causes deformation of the flexible flow guide component, the disturbance head can move with the flexible bellows, thereby driving the disturbance head to move irregularly, which in turn causes the entire conical sleeve and heat exchange component to move irregularly, improving the contact effect between the heat exchange component and the high-temperature flue gas, thus helping to improve the heating effect on the medium.

[0018] 4. Utilize the pulsating energy of the kiln flue gas itself to form a flexible disturbance. This flexible disturbance can weaken the fixed scouring area formed by the flue gas at the inlet of the flexible sleeve, the inlet of the conical sleeve, and the windward side of the heat exchange tube components, making it difficult for dust-laden flue gas to concentrate and scour the same position for a long time, and also making it difficult for it to continuously deposit in the same low-speed retention area. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the present invention.

[0022] Figure 3 This is a schematic diagram showing the connection between the tapered sleeve and the disturbance head of the present invention.

[0023] Figure 4 This is a schematic diagram of the connection port arrangement of the present invention.

[0024] Figure 5 This is a schematic diagram showing the connection between the collecting component and the flexible flow guiding component of the present invention.

[0025] Figure 6 This is a schematic diagram showing the connection between the spiral tube, the inlet pipe, and the outlet pipe of the present invention.

[0026] Figure 7 This is a schematic diagram of the support component structure of the present invention.

[0027] Explanation of reference numerals in the attached drawings: 1. Collection assembly; 11. Collection hood; 12. Fixing port; 2. Flexible flow guiding assembly; 21. Connector 1; 22. Flexible corrugated pipe; 23. Connector 2; 3. Diverting assembly; 31. Diverting hood; 32. Connecting port; 33. Support component; 331. Support ring; 332. Support frame; 333. Fixing hole; 4. Flexible sleeve; 5. Heat exchange assembly; 51. Conical sleeve; 511. Conical sleeve 1; 512. Conical sleeve 2; 513. Connecting ring; 52. Heat exchange tube assembly; 521. Spiral tube; 53. Liquid inlet pipe; 54. Liquid outlet pipe; 55. Exhaust pipe; 6. Disturbance head. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1 Please see Figures 1-5 This embodiment provides a waste heat utilization device for sintering waste bricks, including a collection component 1, a flexible flow guiding component 2, a flow distribution component 3, multiple heat exchange components 5, and multiple flexible sleeves 4. The collection component 1 is connected to the kiln flue gas outlet and is used to introduce the high-temperature flue gas discharged from the kiln during the sintering process of waste sintered bricks into the device. One end of the flexible flow guiding component 2 is connected to the collection component 1, and the other end is connected to the flow distribution component 3. The flow distribution component 3 is located downstream of the flexible flow guiding component 2 and is used to distribute the flue gas introduced by the flexible flow guiding component 2 to multiple heat exchange components 5. The multiple heat exchange components 5 are arranged in a circumferential array along the outer periphery of the flow distribution component 3, and each heat exchange component 5 is connected to the flow distribution component 3 through a flexible sleeve 4.

[0030] Specifically, the collecting component 1 can be configured as a collecting hood 11, one end of which forms a fixed port 12 that connects to the kiln flue gas outlet. The fixed port 12 can be configured as a circular, elliptical, or rectangular transition port according to the cross-sectional shape of the kiln flue gas outlet. The other end of the collecting hood 11 is connected to the connector 21 of the flexible flow guiding component 2, so that the flue gas first enters the collecting hood 11 after being discharged from the kiln flue gas outlet, and then enters the flexible corrugated pipe 22 through the connector 21. The flexible corrugated pipe 22 is located between the connector 21 and the connector 23. The connector 23 is connected to the center of the diversion component 3, thereby forming a continuous flow path from the kiln flue gas outlet to the center of the diversion component 3.

[0031] The diversion assembly 3 includes a diversion hood 31, one end of which is connected to the center of connector 23. Multiple connection ports 32 are evenly distributed on the outer peripheral wall or end face of the diversion hood 31. Each connection port 32 is corresponding to a multiple flexible sleeve 4. Each connection port 32 is connected to the corresponding flexible sleeve 4. The other end of the flexible sleeve 4 is connected to the inlet of the conical sleeve 51 of the corresponding heat exchange assembly 5. Thus, the kiln flue gas passes through the collection hood 11, connector 21, flexible corrugated pipe 22, connector 23 and diversion hood 31 in sequence. It is then distributed by the diversion hood 31 to multiple flexible sleeves 4 and enters the interior of multiple heat exchange assemblies 5 for heat exchange.

[0032] In this embodiment, multiple heat exchange components 5 are arranged in a circular array with the diversion hood 31 as the center. This arrangement can disperse the flue gas from a single path into multiple streams of flue gas and allow them to enter each heat exchange component 5 separately, even when the kiln tail space is limited. This reduces the instantaneous impact of flue gas on a single heat exchange component 5 and decreases the possibility of local ash accumulation and local overheating.

[0033] In this embodiment, the flexible sleeve 4 is used not only as a flue gas connecting component, but also to absorb the relative displacement between the diversion hood 31 and the heat exchange component 5 caused by thermal expansion and contraction, installation deviation or flue gas pulsation. The flexible sleeve 4 can be made of high-temperature resistant rubber composite material, metal corrugated hose or flexible pipe with heat-resistant fiber lining, so as to reduce stress concentration caused by rigid connection while ensuring flue gas sealing and connection.

[0034] Example 2 Please see Figures 1-6 Based on Embodiment 1, each heat exchange component 5 includes a conical sleeve 51, a heat exchange tube component 52, an inlet pipe 53, an outlet pipe 54, and an exhaust pipe 55. One end of the conical sleeve 51 is connected to the flexible sleeve 4, and the other end is connected to the exhaust pipe 55. The heat exchange tube component 52 is disposed inside the conical sleeve 51. The inlet pipe 53 is connected to one end of the heat exchange tube component 52 and penetrates the conical sleeve 51, and the outlet pipe 54 is connected to the other end of the heat exchange tube component 52 and penetrates the conical sleeve 51. The medium to be heated enters the heat exchange tube component 52 through the inlet pipe 53, absorbs the heat of the flue gas, and is then discharged through the outlet pipe 54.

[0035] The flexible flow guiding component 2 includes a first connector 21, a second connector 23, and a flexible corrugated pipe 22. The first connector 21 is connected to the collection component 1, the second connector 23 is connected to the diversion component 3, and the flexible corrugated pipe 22 is connected between the first connector 21 and the second connector 23. When the kiln is in a continuous sintering state, the flue gas temperature, flue gas velocity, and flue gas dust content will fluctuate with the raw material moisture content, the combustion state in the kiln, the kiln car advance rhythm, and the kiln negative pressure. After these fluctuations enter the flexible corrugated pipe 22, they will cause the flexible corrugated pipe 22 to expand and contract. The flexible corrugated pipe 22 is made of an elastic material, such as heat-resistant silicone rubber, which gives it good elasticity. Therefore, the collection cover 11 is connected to the flexible flow guide component 2, and the fixed port 12 can be set as a circular, elliptical or rectangular transition port according to the cross-sectional shape of the kiln flue gas port. This helps to adapt to the installation conditions at the tail of the existing sintering kiln. Through the elasticity of the flexible corrugated pipe 22, problems such as sealing failure or flue gas leakage caused by stress due to installation deviation or thermal expansion and contraction can be reduced or even avoided.

[0036] Since one end of the flexible corrugated pipe 22 is connected to the collection hood 11 via connector 21 and the other end is connected to the diversion hood 31 via connector 23, the expansion, contraction and bending of the flexible corrugated pipe 22 will transmit a limited displacement to the diversion hood 31. The diversion hood 31 is connected to each heat exchange component 5 via the flexible sleeve 4, and each heat exchange component 5 is connected to a disturbance head 6, which is connected to the flexible corrugated pipe 22. Thus, when the unstable flue gas causes the flexible flow guide component 2 to deform, the disturbance head 6 can move with the flexible corrugated pipe 22, causing a slight change in the incident direction and local velocity of the flue gas entering the corresponding heat exchange component 5.

[0037] The aforementioned movement of the disturbance head 6 is not used to drive the heat exchange component 5 with a large stroke, but rather to utilize the pulsating energy of the kiln flue gas itself to form a flexible disturbance. This flexible disturbance can weaken the fixed scouring area formed by the flue gas at the inlet of the flexible sleeve 4, the inlet of the conical sleeve 51, and the windward side of the heat exchange tube component 52, making it less likely for dust-laden flue gas to concentrate and scour the same location for a long time, and less likely to continuously deposit in the same low-speed retention area. In this way, the device can improve the flue gas distribution state at the inlet of multiple heat exchange components 5 and reduce the risk of local blockage and local thermal fatigue without setting up an additional complex drive mechanism. At the same time, by driving the disturbance head 6 to move irregularly, the entire flexible sleeve 4 and the heat exchange component 5 are made to move irregularly, which improves the contact effect between the heat exchange component 5 and the high-temperature flue gas, thus helping to improve the heating effect on the medium.

[0038] The corrugated pitch, wall thickness, and length of the flexible corrugated pipe 22 can be determined based on the distance between the kiln flue gas inlet and the diversion hood 31. If the kiln flue gas pulsation is strong, a metal corrugated pipe with high axial stiffness and good radial flexibility can be selected to avoid excessive deformation leading to sealing surface displacement. If the installation deviation at the kiln tail is large, the length of the flexible corrugated pipe 22 can be appropriately increased to allow for greater assembly compensation between connector 1 21 and connector 2 23. Connectors 1 21, connector 2 23, and the flexible corrugated pipe 22 can be connected by welding or other methods to ensure the sealing reliability during the high-temperature flue gas transportation process.

[0039] The movement amplitude of the disturbance head 6 is limited by the length of the flexible bellows 22, flue gas pressure fluctuations, the support stiffness of the diversion hood 31, and the constraint of the flexible sleeve 4. In practical applications, the effective length of the flexible bellows 22, the position of the support component 33, and the bending allowance of the flexible sleeve 4 can be adjusted to keep the disturbance head 6 within the allowable movement range, avoiding excessive movement amplitude that could affect the connection stability of the inlet pipe 53, outlet pipe 54, or exhaust pipe 55. The inlet pipe 53 and outlet pipe 54 are connected to heat-resistant flexible conduits, through which the medium is introduced into the inlet pipe 53 and discharged through the outlet pipe 54 and the flexible conduit. At the same time, the flexible conduit does not affect the movement of the entire heat exchange assembly 5.

[0040] Example 3 Please see Figures 1-7 Based on Embodiment 2, the diversion component 3 includes a diversion hood 31, multiple connection ports 32, and a support component 33. The central inlet of the diversion hood 31 is connected to the second connector 23, and the multiple connection ports 32 are evenly distributed around the circumference of the diversion hood 31. After entering through the central inlet, the flue gas first diffuses in the buffer chamber and then enters the corresponding flexible sleeves 4 through the multiple connection ports 32. Through the structure of central entry and circumferential exit, the probability of flue gas directly rushing into a single heat exchange component 5 can be reduced, making the flue gas distribution of multiple heat exchange components 5 more balanced.

[0041] The support component 33 includes a support ring 331, and the diversion hood 31 is disposed on the support ring 331. The support ring 331 is welded, bolted, or connected to the outer wall of the diversion hood 31 through a clamping seat. The support ring 331 is used to support the diversion hood 31 and the flexible sleeve 4 connected to the diversion hood 31, while limiting the excessive sway of the diversion hood 31 due to flue gas pulsation. The support ring 331 does not completely block the small disturbances transmitted by the flexible flow guide assembly 2, but limits the disturbances to a range that is conducive to the compensation of the flexible sleeve 4 and the movement of the disturbance head 6.

[0042] The support component 33 also includes a support frame 332, with a support ring 331 mounted on the support frame 332. The support frame 332 has fixing holes 333. The support frame 332 can be welded into a frame structure from heat-resistant steel, channel steel, or square tubing. The fixing holes 333 are used to fix the support frame to the kiln tail foundation, steel structure platform, or equipment base using expansion bolts, anchor bolts, or connecting plates. To accommodate on-site installation errors, the fixing holes 333 can be designed as elongated holes, allowing the support frame 332 to be finely adjusted laterally or longitudinally during installation. Reinforcing ribs can be installed between the support frame 332 and the support ring 331 to improve the support stability of the diversion hood 31 under the impact of high-temperature flue gas.

[0043] When multiple heat exchange components 5 are arranged in a circumferential array, each heat exchange component 5 can be arranged at equal angles with the center line of the flow divider 31 as a reference. Each heat exchange component 5 includes a conical sleeve 51, a heat exchange tube component 52, an inlet pipe 53, an outlet pipe 54, and an exhaust pipe 55. One end of the conical sleeve 51 is connected to the flexible sleeve 4, and the other end is connected to the exhaust pipe 55. The heat exchange tube component 52 is disposed inside the conical sleeve 51. The inlet pipe 53 is connected to one end of the heat exchange tube component 52 and penetrates the conical sleeve 51, and the outlet pipe 54 is connected to the other end of the heat exchange tube component 52 and penetrates the conical sleeve 51. The medium to be heated enters the heat exchange tube component 52 through the inlet pipe 53, absorbs the heat of the flue gas, and is then discharged through the outlet pipe 54.

[0044] The heat exchange tube component 52 includes a spiral tube 521. One end of the spiral tube 521 is connected to the liquid inlet pipe 53, and the other end is connected to the liquid outlet pipe 54. The spiral tube 521 is located in the middle of the conical sleeve 51. When the flue gas flows in the conical sleeve 51, it can form a longer contact path with the outer wall of the spiral tube 521. The medium to be heated flows along the spiral path in the spiral tube 521, thereby extending the residence time of the medium in the heat exchange area. Compared with straight tubes, the spiral tube 521 can provide a larger heat exchange contact length in the limited space of the conical sleeve 51, which is suitable for waste heat recovery scenarios with limited space at the tail of waste sintering brick kilns.

[0045] The conical sleeve 51 may include a first conical sleeve 511, a second conical sleeve 512, and a connecting ring 513; the first conical sleeve 511 is connected to the flexible sleeve 4, the second conical sleeve 512 is coaxially arranged with the first conical sleeve 511, the second conical sleeve 512 is connected to the exhaust pipe 55, and the connecting ring 513 is arranged between the adjacent ends of the first conical sleeve 511 and the second conical sleeve 512; the small end of the first conical sleeve 511 is connected to the inner ring of the connecting ring 513, and the large end of the second conical sleeve 512 is connected to the outer ring of the connecting ring 513, thereby forming a flue gas passage between the first conical sleeve 511 and the second conical sleeve 512, which consists of inlet contraction, annular transition, and outlet discharge.

[0046] In this embodiment, the disturbance head 6 is disposed on the outer wall of the conical sleeve 2 512 and is connected to the flexible bellows 22. When the flexible flow guide component 2 is deformed by unstable flue gas, the disturbance head 6 can move with the flexible bellows 22 in a restricted manner, so that the connection area at the outer wall of the conical sleeve 2 512 is subjected to flexible traction. The flexible traction can cause slight disturbance to the flow field in the inlet area of ​​the conical sleeve 51, reducing the possibility of flue gas forming a stable accumulation on the windward side of the heat exchange tube component 52. The disturbance head 6 moves with the flexible bellows 22 and is also used to drive the spiral tube 521 to move, improving the contact effect between the spiral tube 521 and the flue gas, so as to improve the heat absorption effect of the medium in the heat exchange tube.

[0047] High-temperature resistant sealing sleeves, welded reinforcing sleeves, or pressure cap seals can be installed at the positions where the inlet pipe 53 and outlet pipe 54 penetrate the conical sleeve. To facilitate external pipeline connections, the inlet pipe 53 can be located near the bottom or outer side of the conical sleeve 51, and the outlet pipe 54 can be located near the top or another outer side of the conical sleeve 51, so that the medium to be heated forms a relatively stable flow path within the spiral tube 521. The medium to be heated can be water, heat transfer oil, or other liquid working fluids suitable for kiln waste heat recovery. To prevent high-temperature flue gas from causing excessively rapid thermal damage to the outer wall of the conical sleeve 51, an insulation layer or heat-insulating protective cover can also be installed on the outer side of the conical sleeve 51.

[0048] The exhaust pipe 55 is connected to the outlet end of the tapered sleeve 51 and is used to discharge the flue gas after heat exchange. Multiple exhaust pipes 55 can be connected to the external exhaust main pipe through flexible hoses, or they can be connected to the same purification pipeline through flexible hoses. If the dust content of the flue gas is high, a settling box or dust removal equipment can be installed downstream of the exhaust pipe 55 to further treat the flue gas after heat exchange.

[0049] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A device for utilizing waste heat from sintering of waste bricks, characterized in that, include: The collection component is connected to the kiln flue gas outlet. A flexible flow guiding component, one end of which is connected to a collection component; The diversion component is connected to the other end of the flexible diversion component; The heat exchanger assembly has multiple heat exchanger assemblies arranged in a circumferential array. Flexible sleeves are used to connect each heat exchange component to the distribution component. Each heat exchange component is connected to a disturbance head. The unstable flue gas generated by the kiln enters the interior of the flexible flow guide component, causing the flexible flow guide component to deform and prompting the disturbance head to move.

2. The waste heat utilization device for sintering waste bricks according to claim 1, characterized in that, The flexible flow guiding components include: Connector 1 connects to the collection component; Connector 2 connects to the shunt component; A flexible corrugated pipe is installed between connector one and connector two.

3. The waste heat utilization device for sintering waste bricks according to claim 2, characterized in that, The traffic splitting components include: The flow divider has a central connection to connector two at one end. The flow divider has multiple connection ports evenly distributed on it. Each connection port is connected to a corresponding flexible sleeve. Support components support the flow divider.

4. The waste heat utilization device for sintering waste bricks according to claim 3, characterized in that, The support component includes a support ring, and the flow divider is mounted on the support ring.

5. The waste heat utilization device for sintering waste bricks according to claim 4, characterized in that, The support components also include a support frame, a support ring is mounted on the support frame, and the support frame is provided with fixing holes.

6. The waste heat utilization device for sintering waste bricks according to claim 2, characterized in that, The heat exchange components include: A tapered sleeve, with one end of the tapered sleeve connected to a flexible sleeve; Heat exchanger tube assembly, the heat exchanger tube assembly is located inside the tapered sleeve; Liquid inlet pipe, which connects to one end of the heat exchange tube assembly, and penetrates the conical sleeve; The liquid outlet pipe connects to the other end of the heat exchange tube assembly and penetrates the conical sleeve. Exhaust pipe, with a tapered sleeve connecting the exhaust pipe; The inlet pipe introduces the medium to be heated, and the outlet pipe discharges the heated medium.

7. A waste sintering waste heat utilization device for sintered bricks according to claim 6, characterized in that, The heat exchange tube assembly includes a spiral tube, one end of which is connected to the liquid inlet pipe and the other end of which is connected to the liquid outlet pipe. The spiral tube is located inside the conical sleeve.

8. A waste sintering waste heat utilization device for sintered bricks according to claim 6, characterized in that, The tapered sleeve includes: Conical sleeve one, conical sleeve one is connected to flexible sleeve; Conical sleeve two, which is coaxially arranged with the conical sleeve, and the conical sleeve two is connected to the exhaust pipe; A connecting ring is provided between the adjacent ends of tapered sleeve one and tapered sleeve two. The disturbance head is located on the outer wall of the conical sleeve II and is connected to the flexible bellows.

9. A waste sintering waste heat utilization device for sintered bricks according to claim 8, characterized in that, The small end of tapered sleeve one and the large end of tapered sleeve two are respectively connected to the inner ring and outer ring of the connecting ring.

10. A waste sintering waste heat utilization device for sintered bricks according to claim 2, characterized in that, The collection assembly includes a collection hood, one end of which is provided with a fixing port for connecting to the flue gas inlet of the kiln, and the other end of the collection hood is connected to a connector.

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