A vertical modular waste heat boiler for sintering furnace tail gas

Abstract

The application is suitable for the technical field of boiler tail gas utilization, and provides a sintering furnace tail gas utilization vertical modularized waste heat boiler, which comprises a base and further comprises: a dust removal chamber fixedly arranged on the base; a plurality of furnace bodies, which are all located at the top of the dust removal chamber and are stacked in sequence, and a supporting ring is fixedly connected to the outer side of each furnace body; and a lifting assembly, both sides of the dust removal chamber on the base are fixedly connected with lifting units, a telescopic frame is fixedly arranged at the top of each lifting unit, and the output ends of the telescopic frame are two supports arranged at intervals, and each support is arranged towards the furnace body. The beneficial effect is that the number of the furnace bodies can be increased or reduced from the bottom, and the assembly work can be performed at a low height.

Description

Technical Field

[0001] This invention belongs to the field of boiler exhaust gas utilization technology, and particularly relates to a vertical modular waste heat boiler for utilizing sintering furnace exhaust gas. Background Technology

[0002] A sintering furnace is a specialized piece of equipment that uses sintering to achieve the desired physical, mechanical properties and microstructure of powder compacts. Sintering furnaces are used to dry the paste on silicon wafers, remove organic components from the paste, and complete the sintering of the aluminum back field and grid lines.

[0003] Sintering furnaces generate a large amount of exhaust gas during operation. The exhaust gas must be treated before it can be discharged. Of course, the exhaust gas also carries a lot of heat. With the development of energy-saving technology, waste heat boilers that utilize the heat of exhaust gas have emerged. Generally, waste heat boilers use the heat of exhaust gas to heat water, and the hot water can be transported to other processes for use.

[0004] Existing waste heat boilers are mostly modular assembly structures, which are relatively convenient to install. These modular waste heat boilers are divided into horizontal and vertical types. Vertical modular waste heat boilers are stacked vertically, so a set number of boiler units need to be assembled at once during installation. Otherwise, adjusting the number of boiler units after the entire equipment is installed is very cumbersome. In other words, it is inconvenient to adjust the processing capacity of existing three-dimensional waste heat boilers during installation. Summary of the Invention

[0005] The purpose of this invention is to provide a vertical modular waste heat boiler for utilizing sintering furnace tail gas, aiming to solve the problems mentioned in the background art.

[0006] The present invention is implemented as follows: a vertical modular waste heat boiler utilizing sintering furnace tail gas includes a base and further includes:

[0007] The ash cleaning chamber is fixedly mounted on the base. The top of the ash cleaning chamber is an open structure, and a flue gas inlet pipe that communicates with the interior of the ash cleaning chamber is fixedly connected to one side of the ash cleaning chamber.

[0008] Multiple furnace bodies are located on top of the ash removal chamber and are stacked sequentially. The shape and size of the furnace bodies match those of the ash removal chamber. Mutually cooperating sealing rings are provided at the joints between the furnace bodies and at the joints between the furnace bodies and the ash removal chamber. Heat exchange tubes are fixedly installed inside the furnace body. The heat exchange tubes themselves are spiral-shaped. Support rings are fixedly connected to the outside of the furnace body.

[0009] A top cover assembly is located on the top of the furnace body. The top cover assembly includes a cover fixedly connected to the top of the furnace body, a tank fixedly connected to the cover, and conveying pipes fixedly connected to both ends of the tank. A flue gas exhaust pipe connected to the inside of the furnace body is fixedly connected to the cover. Multiple furnace bodies are provided with water inlet pipes and water outlet pipes on their outer sides. The water inlet pipes connect the heat exchange pipes in each furnace body in sequence, and the water inlet pipes are connected to one of the conveying pipes, and the water outlet pipes are connected to another conveying pipe.

[0010] The lifting assembly has lifting units fixedly connected to both sides of the dust removal chamber on the base. A telescopic frame is fixedly installed on the top of the lifting unit. The output end of the telescopic frame consists of two supports spaced apart, both of which face the furnace body. The telescopic frame is used to move the supports toward the side away from or toward the furnace body, and the lifting unit is used to move the telescopic frame in the vertical direction.

[0011] Preferably, the furnace body is a rotating structure, with mounting rings slidably fitted on the top and bottom of the outer side of the furnace body. An adjustment component is provided between the mounting rings to increase or decrease the distance between the two mounting rings. The water inlet pipe and the water outlet pipe are located on both sides of the furnace body. The water inlet pipe includes a first straight pipe fixedly connected to two mounting rings on the furnace body. Both ends of the heat exchange tube are located outside the furnace body, and both ends of the heat exchange tube are connected to the two first straight pipes through a first telescopic pipe. The water inlet pipe also includes a first support frame fixedly connected to the base. The first support frame is located on one side of the ash removal chamber, and a vertically arranged main water inlet pipe is fixedly connected to the first support frame. The conveying pipe, multiple first straight pipes, and the main water inlet pipe are linearly distributed in the vertical direction, and sealing pressure rings are fixedly connected to the ends of the conveying pipe, the first straight pipes, and the main water inlet pipe.

[0012] Preferably, the water outlet pipeline includes a second straight pipe fixedly connected to two mounting rings respectively, and the two second straight pipes are connected to each other through a second telescopic pipe. The water outlet pipeline also includes a second support frame fixedly connected to the base. The second support frame is located on one side of the dust removal chamber, and a vertically arranged main water outlet pipe is fixedly connected to the second support frame. The conveying pipe, multiple second straight pipes and the main water outlet pipe are linearly distributed in the vertical direction, and the ends of the conveying pipe, the second straight pipes and the main water outlet pipe are all fixedly connected to sealing pressure rings.

[0013] Preferably, the adjustment assembly includes a mounting block fixedly connected to the outside of the furnace body, an adjustment screw rotatably connected to the mounting block, the adjustment screw cooperating with two mounting rings, and the adjustment screw is arranged along the axial direction of the ash cleaning chamber and the furnace body.

[0014] Preferably, a drive box is fixedly connected to one side of the ash cleaning chamber. The output end of the drive box is an output shaft located at its top. A chuck is fixedly connected to one end of the output shaft and both ends of the adjusting screw. When multiple furnace bodies are installed on the ash cleaning chamber, the chuck of the output shaft, the chuck of the adjusting screw, and the chucks at both ends of the multiple adjusting screws are in contact with each other in sequence. The drive box is used to drive the output shaft and the multiple adjusting screws to rotate synchronously.

[0015] Preferably, the chuck surface is provided with a toothed meshing structure.

[0016] Preferably, a positioning pin is fixedly connected to the end of the bracket away from the telescopic frame, and an annular groove that cooperates with the positioning pin is opened at the bottom of the support ring.

[0017] Preferably, multiple connecting reinforcements are provided at the joints between the furnace bodies and at the joints between the furnace body and the ash removal chamber.

[0018] The present invention provides a vertical modular waste heat boiler for utilizing sintering furnace tail gas. Its advantages are as follows: In use, the entire waste heat boiler is installed by stacking multiple furnace bodies onto the ash-cleaning chamber. A key feature is that when the number of furnace bodies needs to be temporarily adjusted, the bottom furnace body can be lifted using the lifting components on both sides, allowing the new furnace body to be installed on top of the ash-cleaning chamber. The adjustment is then completed by releasing the upper furnace bodies. Similarly, reducing the number of furnace bodies is also very convenient. This modular waste heat boiler allows for increasing or decreasing the number of furnace bodies from the bottom, enabling assembly at a lower height, which is not only convenient but also safer. Attached Figure Description

[0019] Figure 1 A three-dimensional structural diagram of a vertical modular waste heat boiler for utilizing sintering furnace tail gas, provided in an embodiment of the present invention;

[0020] Figure 2 A three-dimensional schematic diagram of a vertical modular waste heat boiler for utilizing sintering furnace tail gas after removing the inlet and outlet water pipes, provided for an embodiment of the present invention.

[0021] Figure 3 A schematic diagram of the structure of the water inlet pipe, water outlet pipe, and regulating component provided in an embodiment of the present invention;

[0022] Figure 4 A three-dimensional structural diagram of the furnace body provided in an embodiment of the present invention;

[0023] Figure 5 for Figure 1 A magnified view of a section at point A in the middle;

[0024] In the attached diagram: 1-Base; 2-Cleaning chamber; 3-Flue gas inlet pipe; 4-Furnace body; 5-Sealing connection ring; 6-Heat exchange tube; 7-Support ring; 8-Top cover assembly; 801-Sealing cover; 802-Tank body; 803-Conveying pipe; 804-Flue gas exhaust pipe; 9-Water inlet pipe; 901-First straight pipe; 902-First telescopic pipe; 903-First support frame; 904-Main water inlet pipe; 10-Water outlet pipe; 1001-Second straight pipe; 1002-First telescopic pipe; 1003-Second support frame; 1004-Main outlet pipe; 11-Lifting assembly; 1101-Lifting unit; 1102-Telescopic frame; 1103-Bracket; 12-Positioning pin; 13-Annular groove; 14-Connecting reinforcement; 15-Mounting ring; 16-Adjusting assembly; 1601-Mounting block; 1602-Adjusting screw; 17-Sealing pressure ring; 18-Drive box; 19-Output shaft; 20-Chuck; 21-Toothed meshing structure. Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0026] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0027] like Figure 1 , Figure 2 and Figure 4 The diagram shown illustrates the structure of a vertical modular waste heat boiler utilizing sintering furnace tail gas, as provided in an embodiment of the present invention. The boiler includes:

[0028] Base 1 also includes:

[0029] The cleaning chamber 2 is fixedly mounted on the base 1. The top of the cleaning chamber 2 is an open structure, and a flue gas inlet pipe 3 that communicates with the interior of the cleaning chamber 2 is fixedly connected to one side of the cleaning chamber 2.

[0030] Multiple furnace bodies 4 are located on top of the ash removal chamber 2 and are stacked sequentially. The shape and size of the furnace bodies 4 match those of the ash removal chamber 2. Mutually cooperating sealing rings 5 ​​are provided at the joints between the furnace bodies 4 and at the joints between the furnace bodies 4 and the ash removal chamber 2. Heat exchange tubes 6 are fixedly installed inside the furnace bodies 4. The heat exchange tubes 6 are spiral in shape. Support rings 7 are fixedly connected to the outside of the furnace bodies 4.

[0031] The top cover assembly 8 is located on the top of the furnace body 4. The top cover assembly 8 includes a cover 801 fixedly connected to the top of the furnace body 4. A tank 802 is fixedly connected to the cover 801. Both ends of the tank 802 are fixedly connected to conveying pipes 803. A flue gas exhaust pipe 804 connected to the inside of the furnace body 4 is fixedly connected to the cover 801. A water inlet pipe 9 and a water outlet pipe 10 are provided on the outside of the multiple furnace bodies 4. The water inlet pipe 9 connects the heat exchange pipes 6 in each furnace body 4 in sequence. The water inlet pipe 9 is connected to one of the conveying pipes 803, and the water outlet pipe 10 is connected to another conveying pipe 803.

[0032] The lifting assembly 11 has lifting units 1101 fixedly connected to both sides of the dust cleaning chamber 2 on the base 1. A telescopic frame 1102 is fixedly installed on the top of the lifting unit 1101. The output end of the telescopic frame 1102 consists of two spaced supports 1103. The supports 1103 are both facing the furnace body 4. The telescopic frame 1102 is used to drive the supports 1103 to move away from or closer to the furnace body 4. The lifting unit 1101 is used to drive the telescopic frame 1102 to move in the vertical direction. The supports 1103 cooperate with the support ring 7 to drive the furnace body 4 to move up and down.

[0033] In one embodiment of the present invention, the waste heat boiler is installed by stacking multiple furnace bodies 4 onto the ash cleaning chamber 2. The key feature is that when the number of furnace bodies 4 needs to be temporarily adjusted, the bottom furnace body 4 can be lifted by the lifting components 11 on both sides, allowing the new furnace body 4 to be installed on top of the ash cleaning chamber 2. Then, the upper furnace bodies 4 can be released to complete the adjustment. Similarly, reducing the number of furnace bodies 4 is also very convenient. This modular waste heat boiler can increase or decrease the number of furnace bodies 4 from the bottom, allowing for assembly at a lower height, which is not only convenient but also safer.

[0034] In one embodiment of the present invention, the lifting unit 1101 can be a pneumatic cylinder extension / retraction mechanism, or it can be a hydraulic extension / retraction mechanism. The telescopic frame 1102 can be a pneumatic cylinder extension / retraction mechanism to adjust the position of the bracket 1103, or it can be a hand-cranked screw mechanism to adjust the position of the bracket 1103. Figure 2 and Figure 5 As shown, a positioning pin 12 is fixedly connected to one end of the support 1103 away from the telescopic frame 1102. An annular groove 13, which mates with the positioning pin 12, is provided at the bottom of the support ring 7. Through the cooperation of the positioning pin 12 and the annular groove 13, the support ring 7 will not slip off the support 1103 when the furnace body 4 is lifted, thus improving the stability of the structure. Figure 2As shown, multiple connecting reinforcement members 14 are provided at the joints between the furnace bodies 4 and at the joints between the furnace body 4 and the ash cleaning chamber 2. The connecting reinforcement members 14 can be connected by bolts or by locking fasteners.

[0035] like Figure 3 , Figure 4 and Figure 5 As shown, in a preferred embodiment of the present invention, the furnace body 4 is a rotating structure. Mounting rings 15 are slidably fitted onto the top and bottom of the outer side of the furnace body 4. An adjusting component 16 is provided between the mounting rings 15, which is used to increase or decrease the distance between the two mounting rings 15. The water inlet pipe 9 and the water outlet pipe 10 are located on both sides of the furnace body 4. The water inlet pipe 9 includes a first straight pipe 901 fixedly connected to two mounting rings 15 on the furnace body 4. Both ends of the heat exchange tube 6 are located on the outer side of the furnace body 4. The heat exchange tube 6 is connected to two first straight tubes 901 at both ends through first telescopic tubes 902. The water inlet pipe 9 also includes a first support frame 903 fixedly connected to the base 1. The first support frame 903 is located on one side of the dust removal chamber 2, and a vertically arranged main water inlet pipe 904 is fixedly connected to the first support frame 903. The conveying pipe 803, multiple first straight tubes 901 and main water inlet pipe 904 are linearly distributed in the vertical direction. The ends of the conveying pipe 803, the first straight tubes 901 and the main water inlet pipe 904 are all fixedly connected to sealing pressure rings 17.

[0036] In one embodiment, the water outlet pipe 10 includes two second straight pipes 1001 fixedly connected to two mounting rings 15, and the two second straight pipes 1001 are connected by a second telescopic pipe 1002. The water outlet pipe 10 also includes a second support frame 1003 fixedly connected to the base 1. The second support frame 1003 is located on one side of the dust removal chamber 2, and a vertically arranged main water outlet pipe 1004 is fixedly connected to the second support frame 1003. The conveying pipe 803, the multiple second straight pipes 1001, and the main water outlet pipe 1004 are linearly distributed in the vertical direction. The conveying pipe 803 and the second straight pipes 1001 The ends of the main outlet pipe 1004 are all fixedly connected with sealing pressure rings 17. Generally, after the assembly of this type of modular waste heat boiler, the water pipes need to be re-laid, and the layout of the water pipes needs to be adjusted according to the actual situation. However, with the above structure, the work of redesigning the water pipes can be saved. First, the inlet and outlet pipes are integrated into a single furnace body 4. After the furnace body 4 is assembled, the first straight pipe 901 and the second straight pipe 1001 can be moved by adjusting the component 16, thereby realizing the connection of the pipes between each furnace body 4. It is very convenient to build the overall water pipe system. Figure 4As shown, the adjustment assembly 16 includes a mounting block 1601 fixedly connected to the outside of the furnace body 4. An adjustment screw 1602 is rotatably connected to the mounting block 1601. The adjustment screw 1602 is connected to two mounting rings 15. The adjustment screw 1602 is arranged along the axial direction of the ash cleaning chamber 2 and the furnace body 4. Rotating the adjustment screw 1602 can adjust the position of the two mounting rings 15.

[0037] like Figure 3 and Figure 4 As shown, in a preferred embodiment of the present invention, a drive box 18 is fixedly connected to one side of the ash cleaning chamber 2. The output end of the drive box 18 is an output shaft 19 located at its top. One end of the output shaft 19 and both ends of the adjusting screw 1602 are fixedly connected to chucks 20. When multiple furnace bodies 4 are installed on the ash cleaning chamber 2, the chucks 20 of the output shaft 19, the chucks 20 of the adjusting screw 1602, and the chucks 20 at both ends of the multiple adjusting screws 1602 are in contact with each other in sequence. The drive box 18 is used to drive the output shaft 19 and the multiple adjusting screws 1602 to rotate synchronously.

[0038] In the previous embodiment, after the furnace body 4 is assembled, the adjustment components 16 on each furnace body 4 need to be adjusted to realize the construction of the pipeline. This operation is relatively cumbersome. However, by utilizing the principle of the water inlet pipe 9 and the water outlet pipe 10, the chuck 20 is provided with a toothed meshing structure 21 on its surface. Multiple adjustment screws 1602 are connected through the chuck 20. Multiple adjustment screws 1602 can be controlled to rotate synchronously by a single drive box 18, thereby quickly realizing the construction of the pipeline. The drive box 18 can be driven by a motor or manually.

[0039] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A vertical modular waste heat boiler for utilizing sintering furnace tail gas, comprising a base, characterized in that, Also includes: The ash cleaning chamber is fixedly mounted on the base. The top of the ash cleaning chamber is an open structure, and a flue gas inlet pipe that communicates with the interior of the ash cleaning chamber is fixedly connected to one side of the ash cleaning chamber. Multiple furnace bodies are located on top of the ash removal chamber and are stacked sequentially. The shape and size of the furnace bodies match those of the ash removal chamber. Mutually cooperating sealing rings are provided at the joints between the furnace bodies and at the joints between the furnace bodies and the ash removal chamber. Heat exchange tubes are fixedly installed inside the furnace body. The heat exchange tubes themselves are spiral-shaped. Support rings are fixedly connected to the outside of the furnace body. A top cover assembly is located on the top of the furnace body. The top cover assembly includes a cover fixedly connected to the top of the furnace body, a tank fixedly connected to the cover, and conveying pipes fixedly connected to both ends of the tank. A flue gas exhaust pipe connected to the inside of the furnace body is fixedly connected to the cover. Multiple furnace bodies are provided with water inlet pipes and water outlet pipes on their outer sides. The water inlet pipes connect the heat exchange pipes in each furnace body in sequence, and the water inlet pipes are connected to one of the conveying pipes, and the water outlet pipes are connected to another conveying pipe. The lifting assembly has lifting units fixedly connected to both sides of the dust removal chamber on the base. A telescopic frame is fixedly installed on the top of the lifting unit. The output end of the telescopic frame consists of two supports spaced apart. Both supports face the furnace body. The telescopic frame is used to move the supports away from or closer to the furnace body. The lifting unit is used to move the telescopic frame vertically. The furnace body is a rotating structure. Mounting rings are slidably fitted on the top and bottom of the outer side of the furnace body. An adjustment component is provided between the mounting rings to increase or decrease the distance between the two mounting rings. The adjustment assembly includes a mounting block fixedly connected to the outside of the furnace body, an adjustment screw rotatably connected to the mounting block, the adjustment screw cooperating with two mounting rings, and the adjustment screw being arranged along the axial direction of the ash removal chamber and the furnace body; A drive box is fixedly connected to one side of the ash cleaning chamber. The output end of the drive box is an output shaft located at its top. A chuck is fixedly connected to one end of the output shaft and both ends of the adjusting screw. When multiple furnace bodies are installed on the ash cleaning chamber, the chuck of the output shaft, the chuck of the adjusting screw, and the chucks at both ends of the multiple adjusting screws are in contact with each other in sequence. The drive box is used to drive the output shaft and the multiple adjusting screws to rotate synchronously. A positioning pin is fixedly connected to one end of the bracket away from the telescopic frame, and an annular groove that mates with the positioning pin is opened at the bottom of the support ring.

2. The vertical modular waste heat boiler for utilizing sintering furnace tail gas according to claim 1, characterized in that, The inlet and outlet water pipes are located on both sides of the furnace body. The inlet water pipe includes a first straight pipe fixedly connected to two mounting rings on the furnace body. Both ends of the heat exchange tube are located outside the furnace body. Both ends of the heat exchange tube are connected to the two first straight pipes through a first telescopic pipe. The inlet water pipe also includes a first support frame fixedly connected to the base. The first support frame is located on one side of the ash removal chamber, and a vertically arranged main inlet water pipe is fixedly connected to the first support frame. The conveying pipe, multiple first straight pipes, and the main inlet water pipe are linearly distributed in the vertical direction. The ends of the conveying pipe, the first straight pipes, and the main inlet water pipe are all fixedly connected to sealing pressure rings.

3. The vertical modular waste heat boiler for utilizing sintering furnace tail gas according to claim 2, characterized in that, The water outlet pipeline includes a second straight pipe fixedly connected to two mounting rings respectively. The two second straight pipes are connected to each other through a second telescopic pipe. The water outlet pipeline also includes a second support frame fixedly connected to the base. The second support frame is located on one side of the dust removal chamber, and a vertically arranged main water outlet pipe is fixedly connected to the second support frame. The conveying pipe, multiple second straight pipes and the main water outlet pipe are linearly distributed in the vertical direction. The ends of the conveying pipe, the second straight pipes and the main water outlet pipe are all fixedly connected to sealing pressure rings.

4. The vertical modular waste heat boiler for utilizing sintering furnace tail gas according to claim 1, characterized in that, The chuck surface is provided with a toothed meshing structure.

5. The vertical modular waste heat boiler for utilizing sintering furnace tail gas according to claim 1, characterized in that, Multiple connecting reinforcements are provided at the joints between the furnace bodies and at the joints between the furnace body and the ash removal chamber.

Images