A cooling device for a sintering flue gas incinerator

Abstract

This invention relates to the field of sintering flue gas incinerator technology, specifically a cooling device for a sintering flue gas incinerator. The device includes an incineration assembly, with a flue gas conveying assembly installed at the upper end of the incineration assembly. A circular pipe is fixed inside the incineration assembly, and a diversion cooling mechanism is provided within the circular pipe. A conical filter screen is installed within the diversion cooling mechanism. A conveying pipe passes through the middle of the upper end of the circular pipe, and the upper end of the conveying pipe passes through the flue gas conveying assembly and is equipped with a dust extraction mechanism. A negative pressure pipe is installed on the dust extraction mechanism. This invention enables rapid flow of the liquid exchange medium to facilitate heat exchange with the incinerator, improving heat utilization efficiency. It also controls the flow direction of the flue gas, achieving cooling through heat exchange and spraying during the flow process. Furthermore, it concentrates and removes impurities from the flue gas, preventing blockages that could impede gas flow.

Description

Technical Field

[0001] This invention relates to the field of sintering flue gas incinerator technology, and more particularly to a cooling device for a sintering flue gas incinerator. Background Technology

[0002] There are two types of traditional vertical rapid cooling units. One type uses a lining casting design with a supported structure for the heating surface. The high-temperature area of ​​the support beam in this type of structure requires the use of austenitic stainless steel or higher materials, which limits its large-scale application. The other type uses a membrane wall covering all four sides to suspend the heating surface. This type of structure may suffer wear due to excessively high high-temperature flue gas velocity or ash accumulation due to excessively low medium-temperature flue gas velocity. It is impossible to maintain a uniform flue gas velocity of 9-14 m / s throughout the entire process. As a result, the cooling rate is slow when the flue gas temperature drops from 500℃ to 200℃, which can easily lead to the synthesis of dioxins.

[0003] A rapid cooling device for a sintering flue gas incinerator, disclosed in CN112325307B, is vertically arranged. The high-temperature convection superheater, low-temperature convection superheater, evaporative convection radiator, horizontal gas-to-gas heat exchanger, SCR device, and H-type finned economizer are sequentially arranged from top to bottom or bottom to top within the flue lining. One set of two centralized downcomers is located at the front of the lining, and the other set is located at the rear. Each set of downcomers is connected to the evaporative convection radiator. This cooling device is one of the most important pieces of equipment in the integrated co-treatment technology for sintering flue gas in steel plants.

[0004] In the above technical solution, the lining cannot effectively absorb and convert the heat of the sintering flue gas, cannot effectively recover and reuse the heat, and cannot fully cool the flue gas, so improvements are needed. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a cooling device for a sintering flue gas incinerator.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A cooling device for a sintering flue gas incinerator includes an incineration assembly, a flue gas conveying assembly installed at the upper end of the incineration assembly, a circular pipe fixed inside the incineration assembly, a diversion cooling mechanism inside the circular pipe, and a conical filter screen inside the diversion cooling mechanism.

[0008] The upper middle part of the circular tube is provided with an ash conveying pipe, the upper end of the ash conveying pipe is provided with a flue gas conveying assembly and a dust extraction and suction mechanism, the dust extraction and suction mechanism is provided with a negative pressure pipe, the lower end of the ash conveying pipe is rotatably sleeved with a scraper, a spiral lifting component is provided inside the scraper, the lower end of the spiral lifting component is provided with the scraper and a driving mechanism, the driving mechanism is connected to the scraper, the driving mechanism is provided with a wire brush, the wire brush abuts against the side wall of the conical filter screen;

[0009] The flue gas conveying assembly is connected to a liquid supply mechanism, which is equipped with a suction pump assembly and three conveying pipes. The suction pump assembly is connected to a support assembly, which is installed through the upper end of the flue gas conveying assembly. The lower end of the support assembly is equipped with a heat absorption mechanism, which is located inside the flue gas conveying assembly.

[0010] The flue gas conveying assembly is provided with an exhaust mechanism at the end away from the combustion assembly, and the spiral lifting component and the negative pressure pipe are both connected to the exhaust mechanism.

[0011] Compared with the prior art, this application can fully realize the rapid flow of the liquid exchange medium to carry out heat exchange with the incinerator, which helps to improve the efficiency of heat use and control the flow direction of flue gas. At the same time, the flue gas is cooled through heat exchange and spraying during the flow process, and impurities in the flue gas are concentrated and cleaned, avoiding the situation where impurities block the gas flow.

[0012] Preferably, the liquid supply mechanism includes a four-way connecting pipe and a supply pipe, the supply pipe and three delivery pipes are respectively connected to the four ends of the four-way connecting pipe, and the lower end of the supply pipe is connected to a coolant supply pump assembly.

[0013] One end of one of the conveying pipes is connected to an outer coil assembly, which is sleeved on the lower end of the combustion assembly. The upper end of the outer coil assembly is inserted through the lower end of the flue gas conveying assembly, and the suction pump assembly is inserted through the upper end of the flue gas conveying assembly.

[0014] The upper end of another conveying pipe is installed through the lower end of the flue gas conveying assembly;

[0015] One end of the third delivery pipe passes through the incineration assembly and the circular tube and extends into the circular tube.

[0016] Furthermore, the coolant supply pump assembly can be connected to external coolant equipment or a water supply component, effectively delivering coolant / water through the supply pipe and the four-way connector. The lower end of the four-way connector connects to the supply pipe for easy coolant / water delivery, while the upper three ends connect to three delivery pipes to direct the coolant / water to different heat exchange mechanisms for efficient cooling. In actual operation, the low-temperature heat exchange medium can flow to effectively exchange heat with the heat emitted by the combustion components; it can also exchange heat with the smoke and dust generated in the combustion components, and can achieve heat exchange through spraying, thus achieving sufficient cooling through multiple heat exchange methods.

[0017] Preferably, the flue gas conveying assembly includes a housing assembly and a heat absorption chamber, wherein the heat absorption chamber is disposed within the side wall of the housing assembly;

[0018] Another delivery pipe passes through the housing assembly and extends into the heat absorption chamber;

[0019] One end of both the external coil assembly and the suction pump assembly extends into the heat absorption chamber;

[0020] The diversion cooling mechanism is connected to the heat absorption chamber.

[0021] Furthermore, a cavity is provided on the side wall of the shell assembly. The cavity can be connected to the outer coil assembly and the connecting pipe assembly, which allows the heat exchange medium to flow, which helps to improve the heat absorption effect. The flue gas can flow in the diversion cooling mechanism and the flue gas conveying assembly, and can fully exchange heat with the heat exchange medium in the round pipe and the heat absorption cavity, thereby reducing the temperature of the flue gas.

[0022] Preferably, the heat absorption mechanism includes an inner coil assembly that passes through the lower end of the support assembly. The inner coil assembly is located inside the flue gas conveying assembly. A vertical pipe is fixed to the lower end of the inner coil assembly. The upper end of the vertical pipe passes through the support assembly and is connected to the suction pump assembly. The suction pump assembly is installed at the upper end of the support assembly.

[0023] A connecting pipe assembly is provided through one side of the lower end of the bearing component, and one end of the connecting pipe assembly extends into the flue gas conveying component.

[0024] Furthermore, the suction pump assembly can quickly draw water from the vertical pipe and the inner coil assembly.

[0025] Water enters the heat absorption chamber through the outer coil assembly, and with the supply of water, it enters the connecting pipe assembly and the supporting assembly, then enters the inner coil assembly through the supporting assembly, and finally enters the suction pump assembly through the inner coil assembly and the vertical pipe fittings. This enables rapid and efficient heat absorption, which helps to reduce the temperature of the flue gas.

[0026] Preferably, the exhaust mechanism is provided with two tapered pipe fittings, both of which are sealed and installed inside the flue gas conveying assembly. Two spray plate assemblies are provided through the flue gas conveying assembly, and the two spray plate assemblies are located between the two tapered pipe fittings.

[0027] The upper end of the flue gas conveying assembly is provided with an exhaust hood pipe, and the lower end of the exhaust hood pipe extends between the two spray plate assemblies; a second fan blade assembly is provided inside the exhaust hood pipe, and the second fan blade assembly is connected to the exhaust mechanism.

[0028] A connecting frame is fixed on one end side wall inside the exhaust hood pipe, and the second fan blade assembly is rotatably sleeved on the connecting frame;

[0029] The smaller diameter opening end of the tapered tube is located at the end furthest from the incineration assembly;

[0030] The spray plate assembly is inclined, and the two spray plate assemblies are arranged opposite each other.

[0031] Furthermore, the motor assembly and external components are connected to provide power. The control and power supply of the motor assembly are existing technologies. When the motor assembly drives the vertical shaft assembly to rotate, the power mechanism is activated, which facilitates the full directional flow of flue gas and impurities.

[0032] The spray plate assembly can spray low-temperature water. Through the action of two spray plate assemblies, it can fully contact the flowing flue gas to effectively cool the flue gas and cause the waste to fall. In actual production, corresponding sewage discharge holes are opened on one side of the flue gas conveying assembly, and corresponding collection components are also set to collect the discharged waste.

[0033] When water comes into contact with high-temperature flue gas, it can evaporate quickly for cooling. At the same time, the directional flow of wind drives the directional flow of steam, which can also clean the corresponding components during the flow process. The conical pipe fittings allow steam to adhere to them, and their downward flow can connect with the corresponding sewage discharge structure set in the flue gas conveying assembly for discharge. The sewage discharge structure is set between two conical pipe fittings and can discharge at regular intervals to prevent sludge accumulation.

[0034] Preferably, the exhaust mechanism includes a motor assembly mounted on the upper end of the flue gas conveying assembly. A power mechanism is connected to the output shaft of the motor assembly. The power mechanism is connected to the second fan blade assembly and the spiral lifting component. The power mechanism is provided with a power shaft. A fixed frame is rotatably sleeved on one end of the power shaft. The fixed frame is fixed inside the flue gas conveying assembly. A first fan blade assembly is installed on one end of the power shaft. An inclined component is installed inside the flue gas conveying assembly. One end of the negative pressure pipe is fixed to the end of the inclined component installed inside the flue gas conveying assembly. The first fan blade assembly, the power shaft, and the fixed frame are all located inside the inclined component.

[0035] One end of the inclined member is rotatably sleeved with a horizontal shaft assembly, which is fixed to one end of the power shaft. One end of the horizontal shaft assembly passes through two tapered tubes. One end of the horizontal shaft assembly is fixed with a vertical plate, and one end of the vertical plate is fixed with a scraper. The scraper abuts against the tapered tubes near the incineration assembly.

[0036] Furthermore, the power mechanism can provide power for the operation of multiple mechanisms, so as to fully realize the synchronous operation of multiple mechanisms, effectively control the flow direction of flue gas, and centrally clean impurities in the flue gas.

[0037] Preferably, the power mechanism includes a vertical shaft assembly fixed to the lower end of the output shaft of the motor assembly. The vertical shaft assembly passes through the flue gas conveying assembly and extends into the flue gas conveying assembly. A double bevel gear meshing assembly is installed at one end of the vertical shaft assembly located inside the flue gas conveying assembly. The double bevel gear meshing assembly is connected to the power shaft.

[0038] A linkage belt assembly is installed together between the vertical shaft assembly, the spiral lifting component, and the second fan blade assembly.

[0039] Furthermore, the linkage belt assembly can adopt a belt structure or a sprocket structure, depending on the actual situation to ensure practicality. Among the three linkage wheels / sprockets in the linkage belt assembly, the middle linkage wheel / sprocket is set to be larger, or the middle linkage wheel / sprocket is not on the same straight line as the other two linkage wheels / sprockets, so as to fully realize the connection with the belt or chain and ensure the stable transmission of power. Its setting is optimized according to the structure to ensure stable power transmission and ensure that the vertical shaft assembly, the second fan blade assembly, and the spiral lifting component can rotate.

[0040] The double bevel gear meshing assembly consists of two meshing bevel gears that can transmit power, facilitating the rotation of the first fan blade assembly. A corresponding gas outlet is provided at the upper end of the flue gas conveying assembly, allowing the gas to enter the space provided by the inclined member, facilitating the directional flow of the gas, thereby driving the gas flow within the flue gas conveying assembly. This allows the flue gas generated by the combustion assembly to enter the flue gas conveying assembly and be discharged through the lower end of the inclined member.

[0041] Preferably, the driving mechanism includes a reverse gear transmission assembly installed at the lower end of the scraper, the reverse gear transmission assembly being connected to one end of the spiral lifting member extending beyond the lower end of the scraper, a slanted rod being rotatably sleeved at the bottom of the scraper, and an abutting transmission assembly being installed between the slanted rod and the spiral lifting member.

[0042] The lower end of the wire brush is rotatably sleeved on the bottom of the scraper, and a chain linkage assembly is installed between the wire brush and the inclined rod.

[0043] Furthermore, the reverse gear transmission assembly includes two meshing gears and an internal gear ring component. The internal gear ring component is fixedly connected to the scraper. The spiral lifting component can drive one gear component to rotate, which in turn drives the other gear component to rotate. The other gear component is rotatably connected to the lower end of the scraper. The other gear component can drive the internal gear ring to rotate, thereby causing the scraper to rotate. In actual operation, the rotation speed of the scraper can be adjusted by controlling the specifications of the two gears, so that the spiral lifting component and the scraper can rotate in opposite directions. The rotation of the scraper can cause the side of the scraper with the wire brush component to rotate around the inner wall of the conical filter screen. Furthermore, the rotation of the wire brush component can cause the impurities attached to the conical filter screen to enter the scraper, so that the impurities can be driven upward by the spiral lifting component.

[0044] The contact transmission assembly consists of two meshing bevel gears or two contacting bevel wheels, which drive the inclined rod to rotate through the spiral lifting component and the contact transmission assembly. At the same time, it can drive the wire brush component to rotate through the chain linkage component. The rotation of the wire brush component can sweep the impurities on the conical filter screen into the scraper component.

[0045] Preferably, the diversion and cooling mechanism includes a second conical partition plate fixed to the bottom of the inner tube, a first conical partition plate being sealed between the second conical partition plate and the tube, a plurality of bent conveying pipes being equally spaced through the first conical partition plate, the upper end of the bent conveying pipes being disposed through the tube, the lower end of the tube being disposed through a return pipe, and one end of the return pipe being disposed through the lower end of the flue gas conveying assembly.

[0046] Furthermore, after the gas enters the conical filter, impurities are retained on the inner wall of the conical filter. The gas can enter between the conical filter and the first conical partition plate, and can enter the cavity formed by the round pipe, the first conical partition plate and the second conical partition plate through the bent conveying pipe. Heat exchange can be carried out between the bent conveying pipe and the heat exchange medium, reducing the temperature of the gas in the bent conveying pipe. At the same time, the gas can be discharged through the bent conveying pipe.

[0047] Preferably, the dust extraction mechanism includes a reverse gear transmission assembly that is inclinedly disposed through one side of the upper end of the ash conveying pipe, one end of the negative pressure pipe is disposed through the reverse gear transmission assembly, and a filter screen is installed at the connection between the reverse gear transmission assembly and the negative pressure pipe.

[0048] Furthermore, the negative pressure pipe allows gas to flow, and the filter screen can block impurities. One end of the reverse gear transmission assembly can be connected to an external collection assembly for easy collection of impurities. At the same time, the suction effect of the negative pressure pipe allows gas to enter the reverse gear transmission assembly from the scraper through the ash conveying pipe, so that it can work with the spiral lifting component to make the impurities rise.

[0049] The beneficial effects of this invention are:

[0050] 1. The gas flows through the negative pressure pipe and impurities are blocked by the filter screen. One end of the reverse gear transmission assembly can be connected to the external collection assembly to facilitate the collection of impurities. At the same time, the suction effect of the negative pressure pipe allows the gas to enter the reverse gear transmission assembly from the scraper through the conveying pipe, so as to cooperate with the spiral lifting component to make the impurities rise.

[0051] 2. After the gas enters the conical filter, impurities are left on the inner wall of the conical filter. The gas enters between the conical filter and the first conical partition plate, and can enter the cavity formed by the round pipe, the first conical partition plate and the second conical partition plate through the bent conveying pipe. Heat exchange is carried out through the bent conveying pipe and the heat exchange medium, which reduces the temperature of the gas in the bent conveying pipe. At the same time, the gas is discharged through the bent conveying pipe.

[0052] 3. The reverse gear transmission assembly includes two meshing gears and an internal gear ring component. The internal gear ring component is fixedly connected to the scraper. The spiral lifting component can drive one gear component to rotate, which in turn drives the other gear component to rotate. The other gear component is rotatably connected to the lower end of the scraper. The other gear component drives the internal gear ring to rotate, so that the scraper rotates. In actual operation, the rotation speed of the scraper is adjusted by controlling the specifications of the two gears, so that the spiral lifting component and the scraper rotate in opposite directions. The rotation of the scraper can cause the side of the scraper with the wire brush component to rotate around the inner wall of the conical filter screen. The rotation of the wire brush component can also cause the impurities attached to the conical filter screen to enter the scraper, so that the impurities can be driven to rise by the spiral lifting component.

[0053] The contact transmission assembly consists of two meshing bevel gears or two contacting bevel wheels, so that the inclined rod can be rotated through the spiral lifting component and the contact transmission assembly, and the wire brush can be rotated through the chain linkage component. The rotation of the wire brush can sweep the impurities on the conical filter screen into the scraper.

[0054] 4. The suction pump assembly can quickly draw water from the vertical pipe and the inner coil assembly;

[0055] Water enters the heat absorption chamber through the outer coil assembly, and as water is supplied, it enters the connecting pipe assembly and the supporting assembly, then enters the inner coil assembly through the supporting assembly, and finally enters the suction pump assembly through the inner coil assembly and the vertical pipe fitting. This allows for rapid and efficient heat absorption, which helps to reduce the flue gas temperature.

[0056] 5. The coolant supply pump assembly can be connected to external coolant equipment or to a water supply component, effectively delivering coolant / water through the supply pipe and the four-way connecting pipe. The lower end of the four-way connecting pipe connects to the supply pipe for easy coolant / water delivery, while the upper three ends connect to three delivery pipes to flow towards different heat exchange mechanisms, achieving efficient cooling. In actual operation, the low-temperature heat exchange medium can flow to effectively exchange heat with the heat emitted by the combustion components; it can also exchange heat with the smoke and dust generated in the combustion components, and can achieve heat exchange through spraying, achieving sufficient cooling through multiple heat exchange methods. Attached Figure Description

[0057] Figure 1 This is a structural diagram of the present invention;

[0058] Figure 2 This is a diagram showing the internal structure of the flue gas conveying assembly in this invention;

[0059] Figure 3 This is a diagram of the internal structure of the tapered tube in this invention;

[0060] Figure 4 This is a connection structure diagram of the double bevel gear meshing assembly, the power shaft, and the first fan blade assembly in this invention;

[0061] Figure 5 This is a diagram showing the internal structure of the exhaust hood pipe in this invention;

[0062] Figure 6 This is a connection structure diagram of the load-bearing component, inner coil component, and vertical pipe component in this invention;

[0063] Figure 7 This is a cross-sectional view of the circular tube fitting in this invention;

[0064] Figure 8 This is a cross-sectional view of the scraping component in this invention;

[0065] Figure 9 Appendix to this invention Figure 8 Enlarged view of point A; Figure 10 This is a diagram showing the positional mechanism of the scraper and the wire brush in this invention;

[0066] In the diagram: 1. Incineration assembly, 2. Supply pump assembly, 3. Supply pipe, 4. Four-way connecting pipe, 5. Delivery pipe, 6. External coil assembly, 7. Internal coil assembly, 801. Shell assembly, 802. Heat absorption chamber, 9. Bearing assembly, 10. Vertical pipe fitting, 11. Suction pump assembly, 12. Connecting pipe assembly, 13. Linkage belt assembly, 14. Motor assembly, 15. Vertical shaft assembly, 16. Conical pipe fitting, 17. Spray plate assembly, 18. Horizontal shaft assembly, 19. Inclined component, 20. Scraper component, 21. Vertical plate component, 22. First fan blade assembly, 2 3. Double bevel gear meshing assembly, 24. Power shaft, 25. Fixing frame, 26. Connecting frame, 27. Second fan blade assembly, 28. Exhaust hood pipe, 29. Round pipe fitting, 30. Spiral lifting component, 31. Ash and slag conveying pipe, 32. Bending conveying pipe, 33. Return pipe, 34. Conical filter screen, 35. Scraper component, 36. First conical partition plate, 37. Second conical partition plate, 38. Diagonal rod component, 39. Contact transmission assembly, 40. Chain linkage assembly, 41. Wire brush component, 42. Negative pressure pipe, 43. Reverse gear transmission assembly. Detailed Implementation

[0067] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0068] Reference Figure 1-10 A cooling device for a sintering flue gas incinerator includes an incineration assembly 1. The incineration assembly 1 adopts a sintering flue gas incinerator in the prior art. This application aims to improve upon the shortcomings of the existing technology by fully absorbing and converting residual heat. A flue gas conveying assembly is installed at the upper end of the incineration assembly 1, enabling directional flow of flue gas. A circular pipe 29 is fixed inside the incineration assembly 1, and a diversion cooling mechanism is provided inside the circular pipe 29. The diversion cooling mechanism is equipped with a conical filter screen 34, which helps to cool the flue gas after impurity removal.

[0069] In this embodiment, an ash conveying pipe 31 is provided through the middle of the upper end of the circular pipe 29. The upper end of the ash conveying pipe 31 is provided through the flue gas conveying assembly and is equipped with a dust extraction and suction mechanism. The dust extraction and suction mechanism is equipped with a negative pressure pipe 42, which can fully allow impurities to rise along the ash conveying pipe 31 and allow the dust to enter the reverse gear transmission assembly 43. The end of the reverse gear transmission assembly 43 away from the ash conveying pipe 31 is provided with a corresponding impurity collection component to facilitate the centralized collection of impurities.

[0070] A scraper 35 is rotatably sleeved at the lower end of the ash conveying pipe 31. A spiral lifting member 30 is installed inside the scraper 35. The rotation of the spiral lifting member 30 pushes impurities upward. The lower end of the spiral lifting member 30 passes through the scraper 35 and is equipped with a drive mechanism. The drive mechanism is connected to the scraper 35 and is equipped with a wire brush 41. The wire brush 41 abuts against the side wall of the conical filter screen 34. The drive mechanism enables the wire brush 41, the scraper 35, and the spiral lifting member 30 to rotate, and enables non-co-directional rotation of the wire brush 41, the scraper 35, and the spiral lifting member 30, so as to effectively collect impurities on the conical filter screen 34 and achieve directional conveying of impurities.

[0071] In this embodiment, a liquid supply mechanism is connected to the flue gas conveying assembly. The liquid supply mechanism is equipped with a suction pump assembly 11 and three conveying pipes 5. The liquid supply mechanism enables the delivery of coolant / cooling water. A bearing assembly 9 is connected to the suction pump assembly 11. The bearing assembly 9 is installed through the upper end of the flue gas conveying assembly. A heat absorption mechanism is installed at the lower end of the bearing assembly 9. The heat absorption mechanism can further reduce the temperature of the flue gas. The heat absorption mechanism is located inside the flue gas conveying assembly. An exhaust mechanism is provided at the end of the flue gas conveying assembly away from the combustion assembly 1. The spiral lifting member 30 and the negative pressure pipe 42 are both connected to the exhaust mechanism, which enables gas flow to provide auxiliary power for the rise of dust. That is, the gas will flow along the scraper 35 and the ash conveying pipe 31 towards the direction of the reverse gear transmission assembly 43, which can better make the impurities rise under the drive of the spiral lifting member 30.

[0072] In this embodiment, the liquid supply mechanism includes a four-way connecting pipe 4 and a supply pipe 3. The supply pipe 3 and three delivery pipes 5 are respectively connected to the four ends of the four-way connecting pipe 4. The lower end of the supply pipe 3 is connected to a coolant supply pump assembly 2.

[0073] One end of one of the conveying pipes 5 is connected to an outer coil assembly 6, which is sleeved on the lower end of the combustion assembly 1. The upper end of the outer coil assembly 6 is installed through the lower end of the flue gas conveying assembly, and the suction pump assembly 11 is installed through the upper end of the flue gas conveying assembly.

[0074] The upper end of another conveying pipe 5 is installed through the lower end of the flue gas conveying assembly.

[0075] One end of the third delivery pipe 5 passes through the incineration assembly 1 and the circular pipe 29 and extends into the circular pipe 29. The coolant supply pump assembly 2 can be connected to external coolant equipment or to a water supply component, effectively delivering coolant / water through the supply pipe 3 and the four-way connecting pipe 4. The lower end of the four-way connecting pipe 4 is connected to the supply pipe 3 for easy delivery of coolant / water, while the upper three ends are connected to the three delivery pipes 5 respectively, allowing flow to different heat exchange mechanisms for efficient cooling. In actual operation, the low-temperature heat exchange medium can flow to effectively exchange heat with the heat emitted by the incineration assembly; it can also exchange heat with the smoke generated in the incineration assembly, and can achieve heat exchange through spraying, thus achieving sufficient cooling through multiple heat exchange methods.

[0076] In this embodiment, the flue gas conveying assembly includes a housing assembly 801 and a heat absorption chamber 802, the heat absorption chamber 802 being disposed inside the side wall of the housing assembly 801.

[0077] Another delivery pipe 5 passes through the housing assembly 801 and extends into the heat absorption chamber 802.

[0078] One end of both the external coil assembly 6 and the suction pump assembly 11 extends into the heat absorption chamber 802.

[0079] The diversion cooling mechanism is connected to the heat absorption chamber 802; a cavity is provided on the side wall of the shell assembly 801, which can be connected to the outer coil assembly 6 and the connecting pipe assembly 12, so that the heat exchange medium can flow, which helps to improve the heat absorption effect. The flue gas can flow in the diversion cooling mechanism and the flue gas conveying assembly, and can fully exchange heat with the heat exchange medium in the round pipe 29 and the heat absorption chamber 802, thereby reducing the temperature of the flue gas.

[0080] In this embodiment, the heat absorption mechanism includes an inner coil assembly 7 that passes through the lower end of the support assembly 9. The inner coil assembly 7 is located inside the flue gas conveying assembly. A vertical pipe 10 is fixed to the lower end of the inner coil assembly 7. The upper end of the vertical pipe 10 passes through the support assembly 9 and is connected to the suction pump assembly 11. The suction pump assembly 11 is installed at the upper end of the support assembly 9.

[0081] A connecting pipe assembly 12 is provided through one side of the lower end of the bearing component 9, and one end of the connecting pipe assembly 12 extends into the flue gas conveying component; the water in the vertical pipe 10 and the inner coil assembly 7 can be quickly sucked out by the suction pump assembly 11.

[0082] Water enters the heat absorption chamber 802 through the outer coil assembly 6, and with the supply of water, it can enter the connecting pipe assembly 12 and the bearing assembly 9, then enter the inner coil assembly 7 through the bearing assembly 9, and then enter the suction pump assembly 11 through the inner coil assembly 7 and the vertical pipe 10, which can quickly achieve efficient heat absorption and help reduce the flue gas temperature.

[0083] In this embodiment, the exhaust mechanism is provided with two tapered pipe fittings 16, both tapered pipe fittings 16 are sealed and installed in the flue gas conveying assembly, and two spray plate assemblies 17 are provided through the flue gas conveying assembly, with the two spray plate assemblies 17 located between the two tapered pipe fittings 16.

[0084] An exhaust hood pipe 28 is provided through the upper end of the flue gas conveying assembly, and the lower end of the exhaust hood pipe 28 extends between the two spray plate assemblies 17; a second fan blade assembly 27 is provided inside the exhaust hood pipe 28, and the second fan blade assembly 27 is connected to the exhaust mechanism.

[0085] A connecting frame 26 is fixed on one end side wall inside the exhaust hood pipe 28, and the second fan blade assembly 27 is rotatably sleeved on the connecting frame 26.

[0086] The smaller diameter opening end of the tapered tube 16 is located at the end furthest from the incineration assembly 1.

[0087] The spray plate assembly 17 is inclined and two spray plate assemblies 17 are arranged opposite each other; the motor assembly 14 is connected to the external component and can provide power. The control and power supply of the motor assembly 14 are existing technologies. When the motor assembly 14 drives the vertical shaft assembly 15 to rotate, the power mechanism is activated, which facilitates the full directional flow of flue gas and impurities.

[0088] The spray plate assembly 17 can spray low-temperature water. Through the action of two spray plate assemblies 17, it can fully contact the flowing flue gas to effectively cool the flue gas and cause the waste to fall. Moreover, in actual production and manufacturing, corresponding sewage discharge holes are opened on one side of the flue gas conveying assembly, and corresponding collection components are also set to collect the discharged waste.

[0089] When water comes into contact with high-temperature flue gas, it can evaporate quickly for cooling. At the same time, the directional flow of wind drives the directional flow of steam, which can also clean the corresponding components during the flow process. The conical pipe 16 allows steam to adhere to it, and its downward flow can connect with the corresponding sewage discharge structure set in the flue gas conveying assembly for discharge. The sewage discharge structure is set between two conical pipes 16 and can discharge at regular intervals to avoid sludge accumulation.

[0090] In this embodiment, the exhaust mechanism includes a motor assembly 14 mounted on the upper end of the flue gas conveying assembly. A power mechanism is connected to the output shaft of the motor assembly 14, and the power mechanism is connected to the second fan blade assembly 27 and the spiral lifting member 30. The power mechanism is provided with a power shaft 24, one end of which is rotatably sleeved with a fixing frame 25. The fixing frame 25 is fixed inside the flue gas conveying assembly. A first fan blade assembly 22 is mounted on one end of the power shaft 24. An inclined member 19 is installed inside the flue gas conveying assembly. One end of the negative pressure pipe 42 is fixed to the end of the inclined member 19 installed inside the flue gas conveying assembly. The first fan blade assembly 22, the power shaft 24, and the fixing frame 25 are all located inside the inclined member 19.

[0091] One end of the inclined member 19 is rotatably sleeved with a horizontal shaft assembly 18, which is fixed to one end of the power shaft 24. One end of the horizontal shaft assembly 18 passes through two tapered tubes 16. One end of the horizontal shaft assembly 18 is fixed with a vertical plate 21, and one end of the vertical plate 21 is fixed with a scraper 20. The scraper 20 abuts against the tapered tubes 16 near the incineration assembly 1.

[0092] In this embodiment, the power mechanism includes a vertical shaft assembly 15 fixed to the lower end of the output shaft of the motor assembly 14. The vertical shaft assembly 15 passes through the flue gas conveying assembly and extends into the flue gas conveying assembly. A double bevel gear meshing assembly 23 is installed at one end of the vertical shaft assembly 15 located in the flue gas conveying assembly. The double bevel gear meshing assembly 23 is connected to the power shaft 24.

[0093] A linkage belt assembly 13 is installed between the vertical shaft assembly 15, the spiral lifting component 30, and the second fan blade assembly 27. The linkage belt assembly 13 can be a belt structure or a sprocket structure, selected according to actual conditions to ensure practicality. Among the three linkage wheels / sprockets in the linkage belt assembly 13, the middle linkage wheel / sprocket is set to be larger, or the middle linkage wheel / sprocket is not on the same straight line as the other two linkage wheels / sprockets, so as to fully realize the connection with the belt or chain and ensure the stable transmission of power. Its setting is optimized according to the structure to ensure stable power transmission and ensure that the vertical shaft assembly 15, the second fan blade assembly 27, and the spiral lifting component 30 can rotate.

[0094] The double bevel gear meshing assembly consists of two meshing bevel gears that can transmit power, facilitating the rotation of the first fan blade assembly. A corresponding gas outlet is opened at the upper end of the flue gas conveying assembly, allowing the gas to enter the space set by the inclined member, facilitating the directional flow of the gas, thereby driving the gas flow within the flue gas conveying assembly. This allows the flue gas generated by the combustion assembly to enter the flue gas conveying assembly and be discharged through the lower end of the inclined member.

[0095] In this embodiment, the driving mechanism includes a reverse gear transmission assembly 43 installed at the lower end of the scraper 35. The reverse gear transmission assembly 43 and the spiral lifting member 30 are connected to one end extending from the lower end of the scraper 35. A diagonal rod 38 is rotatably sleeved at the bottom of the scraper 35. An abutment transmission assembly 39 is installed between the diagonal rod 38 and the spiral lifting member 30.

[0096] The lower end of the wire brush component 41 is rotatably sleeved inside the bottom of the scraper component 35. A chain linkage assembly 40 is installed between the wire brush component 41 and the inclined rod component 38. The reverse gear transmission assembly 43 includes two meshing gears and an internal gear ring component. The internal gear ring component is fixedly connected to the scraper component 35. The spiral lifting component 30 can drive one gear component to rotate, which in turn drives the other gear component to rotate. The other gear is rotatably connected to the lower end of the scraper component 35, and it can drive the internal gear ring to rotate, thus causing the scraper component 35 to rotate. In actual operation, the rotation speed of the scraper component 35 can be adjusted by controlling the specifications of the two gears, so that the spiral lifting component 30 and the scraper component 35 can rotate in opposite directions. The rotation of the scraper component 35 causes the side on which the wire brush component 41 is installed to rotate around the inner wall of the conical filter screen 34. The rotation of the wire brush component 41 allows impurities attached to the conical filter screen 34 to enter the scraper component 35, so that the impurities can be driven upward by the spiral lifting component 30.

[0097] The contact transmission assembly 39 consists of two meshing bevel gears or two contact transmission bevel wheels, so that the inclined rod 38 can be rotated through the spiral lifting member 30 and the contact transmission assembly 39, and at the same time, the wire brush member 41 can be rotated through the chain linkage assembly 40. The rotation of the wire brush member 41 can sweep the impurities on the conical filter screen 34 into the scraper member 35.

[0098] In this embodiment, the diversion and cooling mechanism includes a second conical partition plate 37 fixed to the bottom of the inner tube 29. A first conical partition plate 36 is sealed between the second conical partition plate 37 and the inner tube 29. Multiple bent conveying pipes 32 are evenly spaced through the first conical partition plate 36. The upper end of the bent conveying pipe 32 is inserted through the inner tube 29, and the lower end of the inner tube 29 is inserted through a return pipe 33. One end of the return pipe 33 is inserted through the lower end of the flue gas conveying assembly. After the gas enters the conical filter screen 34, impurities are retained on the inner wall of the conical filter screen 34. The gas can enter between the conical filter screen 34 and the first conical partition plate 36, and can enter the cavity formed by the inner tube 29, the first conical partition plate 36, and the second conical partition plate 37 through the bent conveying pipes 32. Heat exchange can be performed between the bent conveying pipes 32 and the heat exchange medium, reducing the temperature of the gas in the bent conveying pipes 32, and the gas can be discharged through the bent conveying pipes 32.

[0099] In this embodiment, the dust extraction mechanism includes a reverse gear transmission assembly 43 inclinedly disposed through one side of the upper end of the ash conveying pipe 31. One end of the negative pressure pipe 42 is disposed through the reverse gear transmission assembly 43. A filter screen is installed at the connection between the reverse gear transmission assembly 43 and the negative pressure pipe 42. The negative pressure pipe 42 allows gas to flow, and the filter screen can block impurities. One end of the reverse gear transmission assembly 43 can be connected to an external collection assembly for easy collection of impurities. At the same time, the suction effect of the negative pressure pipe 42 allows gas to enter the reverse gear transmission assembly 43 from the scraper 35 through the ash conveying pipe 31, so that it can cooperate with the spiral lifting member 30 to make the impurities rise. The impurities are retained in the reverse gear transmission assembly 43, which facilitates the centralized collection of impurities.

[0100] In this invention, combustion in the incineration assembly 1 causes the flue gas to rise, which can filter impurities through the conical filter screen 34 and allow the flue gas to enter the bent conveying pipe 32 to exchange heat with the cooling medium. At the same time, the wire brush 41 can clean the impurities on the conical filter screen 34 and allow them to enter the scraper 35. Under the action of the spiral lifting member 30, the impurities rise and enter the reverse gear transmission assembly 43.

[0101] After initial cooling, the gas rises and contacts the inner coil assembly 7 for further cooling. During its flow, it also exchanges heat with the heat exchange medium in the heat absorption chamber 802. The rotation of the first fan blade assembly 22 allows the gas to be discharged from the end of the flue gas conveying assembly away from the incineration assembly 1. To ensure gas flow, corresponding air passages are provided on the flue gas conveying assembly, corresponding to the first fan blade assembly 22. The gas flow reduces the gas pressure at the lower end of the inclined member 19, causing the flue gas to flow towards the end of the flue gas conveying assembly away from the incineration assembly 1, thus providing power for the flue gas flow. The negative pressure pipe 42 also draws gas from the reverse gear transmission assembly 43, causing the gas in the scraper 35 and ash conveying pipe 31 to move into the reverse gear transmission assembly 43.

[0102] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A cooling device for a sintering flue gas incinerator, comprising an incineration assembly (1), characterized in that: The upper end of the incineration assembly (1) is equipped with a flue gas conveying assembly, and a round pipe (29) is fixed inside the incineration assembly (1). The round pipe (29) is provided with a diversion and cooling mechanism, and a cone-shaped filter screen (34) is provided inside the diversion and cooling mechanism. The upper middle part of the round pipe (29) is provided with an ash conveying pipe (31). The upper end of the ash conveying pipe (31) is provided with a flue gas conveying assembly and a dust extraction and suction mechanism. The dust extraction and suction mechanism is provided with a negative pressure pipe (42). The lower end of the ash conveying pipe (31) is rotatably sleeved with a scraper (35). The scraper (35) is provided with a spiral lifting member (30). The lower end of the spiral lifting member (30) is provided with a drive mechanism. The drive mechanism is connected to the scraper (35). The drive mechanism is provided with a wire brush (41). The wire brush (41) and the side wall of the conical filter screen (34) are in contact. The flue gas conveying assembly is connected to a liquid supply mechanism, which is provided with a suction pump assembly (11) and three conveying pipes (5). The suction pump assembly (11) is connected to a bearing assembly (9), which is disposed through the upper end of the flue gas conveying assembly. The lower end of the bearing assembly (9) is provided with a heat absorption mechanism, which is located inside the flue gas conveying assembly. The flue gas conveying assembly is provided with an exhaust mechanism at the end away from the combustion assembly (1), and the spiral lifting component (30) and the negative pressure pipe (42) are both connected to the exhaust mechanism; The diversion and cooling mechanism includes a second conical partition plate (37) fixed at the bottom of the inner tube (29). A first conical partition plate (36) is sealed between the second conical partition plate (37) and the tube (29). Multiple bent conveying pipes (32) are equally spaced through the first conical partition plate (36). The upper end of the bent conveying pipe (32) is disposed through the tube (29). The lower end of the tube (29) is disposed through a return pipe (33). One end of the return pipe (33) is disposed through the lower end of the flue gas conveying assembly. The exhaust mechanism is provided with two conical pipe fittings (16), both of which are sealed and installed in the flue gas conveying assembly. Two spray plate assemblies (17) are provided through the flue gas conveying assembly, and the two spray plate assemblies (17) are located between the two conical pipe fittings (16). The upper end of the flue gas conveying assembly is provided with an exhaust hood pipe (28), and the lower end of the exhaust hood pipe (28) extends between two spray plate assemblies (17); a second fan blade assembly (27) is provided inside the exhaust hood pipe (28), and the second fan blade assembly (27) is connected to the exhaust mechanism; A connecting frame (26) is fixed on one end side wall inside the exhaust hood pipe (28), and the second fan blade assembly (27) is rotatably sleeved on the connecting frame (26); The smaller diameter opening end of the tapered tube (16) is located at the end furthest from the incineration assembly (1); The spray plate assembly (17) is inclined, and the two spray plate assemblies (17) are arranged opposite each other; The exhaust mechanism includes a motor assembly (14) installed on the upper end of the flue gas conveying assembly. A power mechanism is connected to the output shaft of the motor assembly (14). The power mechanism is connected to the second fan blade assembly (27) and the spiral lifting component (30). The power mechanism is provided with a power shaft (24). A fixed frame (25) is rotatably sleeved on one end of the power shaft (24). The fixed frame (25) is fixed inside the flue gas conveying assembly. A first fan blade assembly (22) is installed on one end of the power shaft (24). An inclined component (19) is installed inside the flue gas conveying assembly. One end of the negative pressure pipe (42) is fixed to the end of the inclined component (19) installed inside the flue gas conveying assembly. The first fan blade assembly (22), the power shaft (24), and the fixed frame (25) are all located inside the inclined component (19). One end of the inclined member (19) is rotatably sleeved with a horizontal shaft assembly (18), the horizontal shaft assembly (18) is fixed to one end of the power shaft (24), one end of the horizontal shaft assembly (18) passes through two tapered tubes (16), one end of the horizontal shaft assembly (18) is fixed with a vertical plate (21), one end of the vertical plate (21) is fixed with a scraper (20), and the scraper (20) abuts against the tapered tubes (16) near the incineration assembly (1).

2. The cooling device for a sintering flue gas incinerator according to claim 1, characterized in that: The liquid supply mechanism includes a four-way connecting pipe (4) and a supply pipe (3). The supply pipe (3) and three delivery pipes (5) are respectively connected to the four ends of the four-way connecting pipe (4). The lower end of the supply pipe (3) is connected to a coolant supply pump assembly (2). One end of one of the conveying pipes (5) is connected to an outer coil assembly (6), the outer coil assembly (6) is sleeved on the lower end of the combustion assembly (1), the upper end of the outer coil assembly (6) is inserted through the lower end of the flue gas conveying assembly, and the suction pump assembly (11) is inserted through the upper end of the flue gas conveying assembly. The upper end of another conveying pipe (5) is installed through the lower end of the flue gas conveying assembly; One end of the third delivery pipe (5) passes through the incineration assembly (1) and the round pipe (29) and extends into the round pipe (29).

3. The cooling device for a sintering flue gas incinerator according to claim 2, characterized in that: The flue gas conveying assembly includes a housing assembly (801) and a heat absorption chamber (802), wherein the heat absorption chamber (802) is disposed inside the side wall of the housing assembly (801); Another delivery pipe (5) passes through the housing assembly (801) and extends into the heat absorption chamber (802); One end of both the external coil assembly (6) and the suction pump assembly (11) extends into the heat absorption chamber (802); The diversion cooling mechanism is connected to the heat absorption chamber (802).

4. The cooling device for a sintering flue gas incinerator according to claim 1, characterized in that: The heat absorption mechanism includes an inner coil assembly (7) that runs through the lower end of the bearing assembly (9). The inner coil assembly (7) is located inside the flue gas conveying assembly. A vertical pipe (10) is fixed to the lower end of the inner coil assembly (7). The upper end of the vertical pipe (10) runs through the bearing assembly (9) and is connected to the suction pump assembly (11). The suction pump assembly (11) is installed at the upper end of the bearing assembly (9). A connecting pipe assembly (12) is provided through one side of the lower end of the bearing component (9), and one end of the connecting pipe assembly (12) extends into the flue gas conveying component.

5. The cooling device for a sintering flue gas incinerator according to claim 1, characterized in that: The power mechanism includes a vertical shaft assembly (15) fixed at the lower end of the output shaft of the motor assembly (14). The vertical shaft assembly (15) passes through the flue gas conveying assembly and extends into the flue gas conveying assembly. A double bevel gear meshing assembly (23) is installed at one end of the vertical shaft assembly (15) located in the flue gas conveying assembly. The double bevel gear meshing assembly (23) is connected to the power shaft (24). A linkage belt assembly (13) is installed between the vertical shaft assembly (15), the spiral lifting component (30), and the second fan blade assembly (27).

6. The cooling device for a sintering flue gas incinerator according to claim 1, characterized in that: The drive mechanism includes a reverse gear transmission assembly (43) installed at the lower end of the scraper (35), the reverse gear transmission assembly (43) and the spiral lifting member (30) extending out of the lower end of the scraper (35) are connected, the bottom of the scraper (35) is rotatably sleeved with a diagonal rod (38), and an abutment transmission assembly (39) is installed between the diagonal rod (38) and the spiral lifting member (30). The lower end of the wire brush (41) is rotatably sleeved on the bottom of the scraper (35), and a chain linkage assembly (40) is installed between the wire brush (41) and the inclined rod (38).

7. The cooling device for a sintering flue gas incinerator according to claim 1, characterized in that: The dust extraction mechanism includes a reverse gear transmission assembly (43) that is inclined and passes through one side of the upper end of the ash conveying pipe (31). One end of the negative pressure pipe (42) passes through the reverse gear transmission assembly (43). A filter screen is installed at the connection between the reverse gear transmission assembly (43) and the negative pressure pipe (42).

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