Lime kiln waste heat recovery equipment

Abstract

The utility model relates to lime kiln waste heat recovery equipment, and relates to the field of waste heat recovery devices. The waste heat recovery device comprises a waste heat recovery box, the waste heat recovery box comprises a base and a box shell, the box shell is installed on the upper end face of the base, the box shell is fixedly connected with the base, a plurality of smoke guide pipe sets are evenly installed in the box shell, the smoke guide pipe sets are communicated through heat insulation pipe heads, and each smoke guide pipe set comprises a heat exchange bottom shell and a vertical pipe; the heat exchange bottom shell is installed on the inner side of the bottom face of the box shell, and the heat exchange bottom shell and the box shell are clamped and fixed. The clamping seats are arranged in the waste heat recovery box, so that the smoke guide pipe sets can be conveniently positioned and installed through the clamping seats during use, the adjacent smoke guide pipe sets are mutually connected through the heat insulation pipe heads, disassembly and assembly are easy and better, disassembly and cleaning are convenient, meanwhile, the sealing side covers are arranged at the two ends of the square shell, and the sealing side covers are arranged at the two ends of the square shell. And the two ends can be detached during cleaning.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of waste heat recovery devices, in particular to a lime kiln waste heat recovery device. BACKGROUND

[0002] A large amount of high-temperature flue gas is generated in the lime production process, and the waste heat and energy in the production process are recovered and utilized.

[0003] The existing Chinese patent with the patent number CN219551256U discloses a lime kiln flue gas waste heat recovery device, and belongs to the field of lime production devices. The device comprises a water storage pool and a flue gas channel. The flue gas channel is arranged inside the water storage pool and penetrates through the water storage pool. A water inlet pipe and a flue gas inlet are arranged on one side wall of the water storage pool. A water outlet pipe, a temperature sensor and a flue gas outlet are arranged on the other side wall of the water storage pool. The flue gas outlet is connected with an activated carbon adsorption box. A liquid level controller is arranged inside the water storage pool. The flue gas inlet is arranged at the lower part of the water inlet pipe.

[0004] According to the related technology in the above, the lime kiln flue gas waste heat recovery device is used by installing the bent pipeline on the pool bottom for heat exchange. The contact area with the water source is small during the heat exchange process, so the heat exchange efficiency is poor. Moreover, the pipeline is difficult to be regularly cleaned because the pipeline is complicated to disassemble and assemble. The heat exchange efficiency is greatly reduced due to the accumulation of smoke dust in the pipeline for a long time. CONTENT OF THE UTILITY MODEL

[0005] In order to easily and easily disassemble and clean the heat exchange pipeline and improve the pipeline heat exchange efficiency, the application provides a lime kiln waste heat recovery device.

[0006] The lime kiln waste heat recovery device provided by the application adopts the following technical scheme:

[0007] The lime kiln waste heat recovery device comprises a waste heat recovery box. The waste heat recovery box comprises a base and a box shell. The box shell is arranged on the upper end surface of the base, and the box shell is fixedly connected with the base. A plurality of smoke guide pipe groups are uniformly arranged in the box shell. The smoke guide pipe groups are connected in communication through heat insulation pipe heads. Each smoke guide pipe group comprises a heat exchange bottom shell and a vertical pipe. The heat exchange bottom shell is arranged on the inner side of the bottom surface of the box shell, and the heat exchange bottom shell is clamped and fixed with the box shell. The vertical pipes are arranged on both sides of the upper end surface of the heat exchange bottom shell, and the vertical pipes are sealingly and fixedly connected with the heat exchange bottom shell.

[0008] By adopting the technical scheme, the waste heat recovery tank is designed as a structure matched by the base and the tank shell, the base can be used to ensure that the equipment is stably placed on the ground during use, so that the tank shell can be supported and installed by the base, the smoke guide pipe group can be installed by the tank shell during processing, and the smoke guide pipe groups are connected to each other by the heat insulation pipe heads, so that the heat insulation pipe heads and the smoke guide pipe groups are connected to each other to form a connected smoke guide pipe, the smoke can be stably exchanged with the liquid in the tank shell during use, and the stand pipe is installed by the heat exchange bottom shell through the structure of the smoke guide pipe group, the heat insulation pipe head is installed by the stand pipe during use, the adjacent smoke guide pipe groups are combined by the heat insulation pipe head, and the heat insulation pipe head is arranged outside the waste heat recovery tank, so that the heat insulation pipe head is made of heat insulation material, heat preservation is better, and the heat insulation pipe head is more convenient to install and connect outside the tank body.

[0009] Optionally, the base comprises a seat plate and a bracket for supporting the tank shell, the bracket is vertically installed on both sides of the seat plate, and the bracket is fixedly connected with the seat plate.

[0010] By adopting the technical scheme, the bracket is installed on the seat plate during use through the structure of the base, and the tank shell is stably supported by the brackets at both ends, so that the stability of the tank shell during waste heat recovery is improved.

[0011] Optionally, the tank shell comprises a main shell, an inlet pipe group and an outlet pipe group, the inlet pipe group and the outlet pipe group are installed on the lower end face of the main shell, and the head of the inlet pipe group and the outlet pipe group is provided with a flow dividing nozzle.

[0012] By adopting the technical scheme, the inlet pipe group and the outlet pipe group are installed on the lower end of the main shell during use, so that the liquid in the tank shell is better replaced, and the flow dividing nozzle is installed on the head of the inlet pipe group and the outlet pipe group, so that the liquid inlet and outlet are more uniform.

[0013] Optionally, a plurality of clamping seats for positioning and installing the heat exchange bottom shell are symmetrically arranged on the inner side of the main shell, the clamping seats are fixedly connected with the main shell, a plurality of liquid flow holes corresponding to the flow dividing nozzles are formed in the clamping seats, and a tank cover for limiting the stand pipe is installed on the upper end face of the main shell.

[0014] By adopting the technical scheme, the plurality of clamping seats are symmetrically arranged on the inner side of the main shell, so that the heat exchange bottom shell can be directly inserted and installed when being installed, the equipment can be quickly disassembled and used, a plurality of liquid flow holes are arranged on the clamping seat, so that the liquid inlet and discharge are realized by the cooperation of the liquid distribution nozzle, the box cover is fixedly installed on the upper end surface of the main shell, the box cover is sleeved on the limiting vertical pipe to ensure the stable use of the limiting vertical pipe, and the box cover can also be used for heat preservation of the liquid in the box shell to reduce heat loss.

[0015] Optionally, the heat exchange bottom shell comprises a square shell and heat exchange fins, the heat exchange fins are uniformly installed on the upper end surface of the square shell, and the heat exchange fins are fixedly connected with the square shell, and a limiting clamping column is fixedly installed on the outer side of the square shell.

[0016] By adopting the technical scheme, the structure of the heat exchange bottom shell is arranged to ensure that the square shell can be used to stabilize the process of flue gas during use, and the square shell can be used for heat exchange with external liquid during the process of flue gas passing through, and a plurality of heat exchange fins are fixedly installed on the square shell, so that the heat exchange effect of the square shell is improved.

[0017] Optionally, a threaded pipe seat for installing the vertical pipe is arranged on the upper end surface of the square shell, the threaded pipe seat is fixedly connected with the square shell, and sealing side covers are installed on the two sides of the square shell.

[0018] By adopting the technical scheme, the threaded pipe seat is arranged on the upper end surface of the square shell, so that the vertical pipe can be quickly connected on the threaded pipe seat when being installed, thereby ensuring the stable flue gas flow between the two, and the sealing side covers are installed on the two sides of the square shell to ensure that the two ends of the square shell are sealed and shielded.

[0019] Optionally, the sealing side cover comprises an outer cover plate, a plug-in block and a locking frame, the plug-in block is installed on the inner side of the outer cover plate and is integrally formed with the outer cover plate, a sealing ring is sleeved on the plug-in block, and the locking frame is fixedly installed on the two sides of the outer cover plate.

[0020] By adopting the technical scheme, the structure of the sealing side cover is arranged to ensure that the plug-in block can be installed in the square shell through the outer cover plate during use, the plug-in block can be stably inserted into the square shell for sealing and shielding during use, and the locking frame is arranged to ensure that the sealing side cover can be stably installed on the square shell.

[0021] Optionally, the locking frame comprises a frame seat and a rotating clamping frame corresponding to the limiting clamping column, the frame seat is fixedly installed on the two sides of the outer cover plate, the rotating clamping frame is rotatably installed on the frame seat, and a supporting spring is further installed between the frame seat and the rotating clamping frame.

[0022] By adopting the above technical solution, the structure of the locking frame is designed to ensure that the rotating clip can be installed through the frame base during use. When fixation is required, the rotating clip can be engaged and fixed on the limit pin. The support spring is designed to provide stable support for the rotating clip and ensure stable engagement and fixation.

[0023] In summary, this application includes at least one of the following beneficial technical effects: By setting a clamping seat in the residual heat recovery box, the smoke guide pipe assembly can be positioned and installed through the clamping seat during use, and adjacent smoke guide pipe assemblies can be connected to each other through the heat insulation pipe head, which facilitates better disassembly and cleaning. At the same time, sealing side covers are set at both ends of the square shell, which can be disassembled at both ends for cleaning, thus better cleaning the inside of the square pipe. It has the advantages of easy disassembly and cleaning. Attached Figure Description

[0024] Figure 1 This is a perspective view of the overall structure in the embodiments of this application.

[0025] Figure 2 yes Figure 1 The diagram shows the device without the cover installed.

[0026] Figure 3 This is a perspective view of the residual heat recovery box in the embodiments of this application.

[0027] Figure 4 yes Figure 3 Front view of the device shown.

[0028] Figure 5 yes Figure 3 Top view of the device shown.

[0029] Figure 6 This is a perspective view of the smoke guide tube assembly and the sealing side cover in the embodiments of this application.

[0030] Figure 7 yes Figure 6 A magnified view of part A of the device shown.

[0031] Figure 8 This is a perspective view of the sealing side cover in an embodiment of this application.

[0032] Figure 9 yes Figure 8 Side view of the device shown.

[0033] Explanation of reference numerals in the attached drawings: 1. Residual heat recovery box; 11. Base; 111. Seat plate; 112. Bracket; 12. Box shell; 121. Main shell; 122. Liquid inlet pipe assembly; 123. Liquid outlet pipe assembly; 124. Diverter nozzle; 125. Box cover; 13. Clamping seat; 131. Liquid flow hole; 2. Smoke guide pipe assembly; 21. Heat exchange bottom shell; 211. Square shell; 212. Heat exchange fins; 213. Threaded pipe seat; 214. Limiting pin; 22. Riser; 3. Insulated pipe head; 4. Sealing side cover; 41. Outer cover plate; 42. Insert block; 421. Sealing ring; 43. Locking bracket; 431. Frame base; 432. Rotary clamp bracket; 433. Support spring. Detailed Implementation

[0034] The present application will be further described in detail below with reference to the accompanying drawings.

[0035] This application discloses a waste heat recovery device for lime kilns. (Refer to...) Figure 1 , Figure 2 and Figure 3 As shown, a waste heat recovery device for a lime kiln includes a waste heat recovery box 1. The waste heat recovery box 1 includes a base 11 and a box shell 12. The box shell 12 is installed on the upper surface of the base 11 and is fixedly connected to the base 11. Several smoke guide pipe groups 2 are evenly installed in the box shell 12. The smoke guide pipe groups 2 are connected to each other through heat insulation pipe heads 3. The smoke guide pipe group 2 includes a heat exchange bottom shell 21 and a riser 22. The heat exchange bottom shell 21 is installed on the inner side of the bottom surface of the box shell 12 and is engaged and fixed to the box shell 12. The riser 22 is installed on both sides of the upper surface of the heat exchange bottom shell 21 and is sealed and fixedly connected to the heat exchange bottom shell 21. By designing the waste heat recovery box 1 into a structure where the base 11 and the box shell 12 cooperate, it is easy to use. The base 11 can be used to ensure that the equipment is placed stably on the ground, and the box shell 12 can be supported by the base 11. When it is easy to process, several flue gas duct groups 2 can be installed on the box shell 12, and the flue gas duct groups 2 can be connected to each other through the heat-insulating pipe heads 3. This ensures that the several heat-insulating pipe heads 3 and the several flue gas duct groups 2 form a connected flue gas duct, which facilitates the stable heat exchange between the flue gas and the liquid in the box shell 12. At the same time, the structure of the flue gas duct group 2 allows the riser 22 to be installed through the heat exchange bottom shell 21. When it is easy to use, the heat-insulating pipe head 3 can be installed through the riser 22, which facilitates the combination of adjacent flue gas duct groups 2. Moreover, the heat-insulating pipe head 3 is located on the outside of the waste heat recovery box 1, so it is made of heat-insulating material, which facilitates better heat preservation and makes the installation and connection operation easier on the outside of the box.

[0036] Reference Figure 3 , Figure 4 and Figure 5As shown, the base 11 includes a base plate 111 and brackets 112 for supporting the housing 12. The brackets 112 are vertically installed on both sides of the base plate 111 and are fixedly connected to the base plate 111. The structure of the base 11 ensures that the brackets 112 can be installed through the base plate 111 during use, and the housing 12 is stably supported by the brackets 112 at both ends, which facilitates the stability of the housing 12 during waste heat recovery. The housing 12 includes a main housing 121, an inlet pipe assembly 122, and an outlet pipe assembly 123. The inlet pipe assembly 122 and the outlet pipe assembly 123 are both installed on the lower end face of the main housing 121, and the heads of the inlet pipe assembly 122 and the outlet pipe assembly 123 are each equipped with a diversion nozzle 124. The structure of the housing 12 is designed to allow for the installation of the inlet pipe assembly 122 and the outlet pipe assembly 123 at the lower end of the main housing 121 during use. This facilitates better liquid replacement inside the housing 12. Furthermore, the installation of diversion nozzles 124 at the heads of the inlet pipe assembly 122 and the outlet pipe assembly 123 ensures more uniform liquid inflow and outflow. Several clamping seats 13 are symmetrically arranged on the inner side of the main housing 121 for positioning and mounting the heat exchange base 21. The clamping seats 13 are fixedly connected to the main housing 121, and each clamping seat 13 has several liquid flow holes 131 corresponding to the diversion nozzles 124. A housing cover 125 for a limiting riser 22 is also installed on the upper end face of the main housing 121. By symmetrically arranging several clamping seats 13 on the inner side of the main housing 121, the heat exchange bottom shell 21 can be directly plugged in for installation, facilitating quick assembly and disassembly of the equipment. At the same time, by opening several liquid flow holes 131 on the clamping seats 13, the diversion nozzles 124 cooperate to realize the entry and discharge of liquid. By fixing the box cover 125 on the upper end face of the main housing 121, the box cover 125 is fitted onto the limiting riser 22 to ensure the stable use of the limiting riser 22. At the same time, the box cover 125 can also insulate the liquid in the box shell 12, reducing heat loss.

[0037] Reference Figure 6 and Figure 7As shown, the heat exchange base 21 includes a square shell 211 and heat exchange fins 212. The heat exchange fins 212 are evenly installed on the upper surface of the square shell 211 and are fixedly connected to the square shell 211. Limiting posts 214 are fixedly installed on the outer surface of the square shell 211. The structure of the heat exchange base 21 is designed to ensure the stability of the flue gas during use, and to facilitate heat exchange between the flue gas and the external liquid during its passage. The fixed installation of several heat exchange fins 212 on the square shell 211 increases its heat exchange efficiency. A threaded pipe seat 213 for installing the riser 22 is provided on the upper surface of the square shell 211. The threaded pipe seat 213 is fixedly connected to the square shell 211, and sealing side covers 4 are installed on both sides of the square shell 211. By setting a threaded pipe seat 213 on the upper end face of the square shell 211, the riser 22 can be quickly connected to the threaded pipe seat 213 by thread when it is installed, thereby ensuring stable flue gas flow between the two. By installing sealing side covers 4 on both sides of the square shell 211, the two ends of the square shell 211 are sealed and blocked.

[0038] Reference Figure 7 , Figure 8 and Figure 9 As shown, the sealing side cover 4 includes an outer cover plate 41, a plug-in block 42, and a locking frame 43. The plug-in block 42 is installed on the inner side of the outer cover plate 41 and is integrally formed with the outer cover plate 41. A sealing ring 421 is fitted on the plug-in block 42. The locking frame 43 is fixedly installed on both sides of the outer cover plate 41. The structural design of the sealing side cover 4 ensures that the plug-in block 42 can be installed through the outer cover plate 41 during use, and that the plug-in block 42 can be stably inserted into the square shell 211 for sealing and covering. At the same time, the locking frame 43 ensures that the sealing side cover 4 can be stably installed on the square shell 211. The locking frame 43 includes a frame base 431 and a rotating bracket 432 corresponding to the limiting pin 214. The frame base 431 is fixedly installed on both sides of the outer cover plate 41, and the rotating bracket 432 is rotatably installed on the frame base 431. A support spring 433 is also installed between the frame base 431 and the rotating bracket 432. The structure of the locking bracket 43 is designed to ensure that the rotating bracket 432 can be installed through the bracket base 431 during use. When fixation is required, the rotating bracket 432 can be engaged and fixed on the limiting bracket post 214. The support spring 433 is designed to provide stable support for the rotating bracket 432, ensuring that the rotating bracket 432 can be stably engaged and fixed.

[0039] The implementation principle of a waste heat recovery device for a lime kiln in this application embodiment is as follows: In actual use, multiple sets of flue pipe groups 2 are inserted into the clamping seat 13 of the waste heat recovery box 1 in sequence. After the flue pipe group 2 is installed, the box cover 125 can be fitted onto the riser 22 of the flue pipe group 2. Then, the heat insulation pipe head 3 is installed on the riser 22 in sequence, so that the flue pipe group 2 can be connected in sequence. In this way, flue gas can be used to pass through the connected flue. Then, liquid can be stably filled into the waste heat recovery box 1 through the liquid inlet pipe group 122, so that the filtration operation can be carried out stably. When not in use, the flue pipe group 2 can be removed and cleaned in sequence, and the heat exchange bottom shell 21 and the riser 22 can be disassembled for cleaning. At the same time, the sealing side covers 4 at both ends of the square shell 211 can also be disassembled, making it easier to clean the square shell 211.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A lime kiln waste heat recovery device comprising a waste heat recovery tank (1), characterized by: The residual temperature recovery tank (1) comprises a base (11) and a tank shell (12), the tank shell (12) is installed on the upper end surface of the base (11), and the tank shell (12) is fixedly connected with the base (11); a plurality of smoke guide pipe groups (2) are uniformly installed in the tank shell (12); the smoke guide pipe groups (2) are connected in communication through heat insulation pipe heads (3); the smoke guide pipe group (2) comprises a heat exchange bottom shell (21) and a vertical pipe (22); the heat exchange bottom shell (21) is installed on the inner side of the bottom surface of the tank shell (12), and the heat exchange bottom shell (21) is clamped and fixed with the tank shell (12); the vertical pipe (22) is installed on the upper end surface of the heat exchange bottom shell (21) on both sides, and the vertical pipe (22) is sealingly and fixedly connected with the heat exchange bottom shell (21).

2. A lime kiln waste heat recovery apparatus according to claim 1, characterized in that: The base (11) comprises a seat plate (111) and a bracket (112) for supporting the tank shell (12); the bracket (112) is vertically installed on both sides of the seat plate (111), and the bracket (112) is fixedly connected with the seat plate (111).

3. A lime kiln waste heat recovery apparatus according to claim 2, characterized in that: The tank shell (12) comprises a main shell (121), a liquid inlet pipe group (122) and a liquid outlet pipe group (123); the liquid inlet pipe group (122) and the liquid outlet pipe group (123) are both installed on the lower end surface of the main shell (121), and the head of the liquid inlet pipe group (122) and the liquid outlet pipe group (123) is provided with a flow dividing nozzle (124).

4. A lime kiln waste heat recovery apparatus according to claim 3, characterized in that: A plurality of clamping seats (13) for positioning and installing the heat exchange bottom shell (21) are symmetrically arranged on the inner side of the main shell (121); the clamping seat (13) is fixedly connected with the main shell (121), and a plurality of liquid flow holes (131) corresponding to the flow dividing nozzle (124) are formed in the clamping seat (13); a tank cover (125) for limiting the vertical pipe (22) is further installed on the upper end surface of the main shell (121).

5. A lime kiln waste heat recovery apparatus according to claim 4, characterized in that: The heat exchange bottom shell (21) comprises a square shell (211) and heat exchange fins (212); the heat exchange fins (212) are uniformly installed on the upper end surface of the square shell (211), and the heat exchange fins (212) are fixedly connected with the square shell (211); a limiting clamping column (214) is fixedly installed on the outer side of the square shell (211).

6. A lime kiln waste heat recovery apparatus according to claim 5, characterized in that: A threaded pipe seat (213) for installing the vertical pipe (22) is arranged on the upper end surface of the square shell (211); the threaded pipe seat (213) is fixedly connected with the square shell (211); and sealing side covers (4) are installed on both sides of the square shell (211).

7. A lime kiln waste heat recovery apparatus according to claim 6, characterized in that: The sealing side cover (4) comprises an outer cover plate (41), a plug-in block (42) and a locking bracket (43); the plug-in block (42) is installed on the inner side of the outer cover plate (41), and the plug-in block (42) is integrally formed with the outer cover plate (41); a sealing ring (421) is sleeved on the plug-in block (42); and the locking bracket (43) is fixedly installed on both sides of the outer cover plate (41).

8. A lime kiln waste heat recovery apparatus according to claim 7, characterized in that: The locking frame (43) comprises a frame seat (431) and a rotating clamping frame (432) corresponding to the limiting clamping column (214), the frame seat (431) is fixedly installed on both sides of the outer cover plate (41), the rotating clamping frame (432) is rotatably installed on the frame seat (431), and the frame seat (431) and the rotating clamping frame (432) are further provided with a supporting spring (433).

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