Waste heat boiler

Abstract

The utility model belongs to the technical field of waste heat utilization equipment, and particularly relates to a waste heat boiler which comprises a waste heat boiler body and supporting legs, a waste heat recovery structure is arranged above the waste heat boiler body and comprises a filtering mechanism and a recovery mechanism, and the filtering mechanism comprises a supporting plate, a gas guide pipe, an installation plate, a fixing plate and a rotating rod. The top of the supporting plate is connected with the bottom of the recycling box, one end of the waste heat boiler communicates with one end of the gas guide pipe, and the two ends of the mounting plate are connected with the inner wall of the recycling box. According to the waste heat boiler, after flue gas enters the recycling bin, the flow speed is reduced, the retention time is prolonged, the filter screen can effectively intercept solid impurities in the flue gas, pollutant emission is reduced, environmental pollution is avoided, impurities accumulated on the surface of the filter screen can be automatically removed, blocking is prevented, and the filtering efficiency is maintained; and meanwhile, the filter screen can be quickly and conveniently disassembled and assembled, and the working efficiency of the waste heat boiler is improved.

Description

Technical Field

[0001] This utility model relates to the field of waste heat utilization equipment technology, specifically a waste heat boiler. Background Technology

[0002] Currently, waste heat boilers mainly utilize the flue gas generated in various industrial processes. Through multiple heat exchange tubes installed in the waste heat boiler, the heat in the flue gas is recovered and used to produce hot water or steam for other processes. Waste heat boilers are required in the sludge roasting process.

[0003] Existing waste heat boilers typically recover heat from flue gas during use. However, in actual use, they cannot quickly and easily filter impurities in the flue gas, resulting in direct emissions that pollute the surrounding environment. Furthermore, the filters cannot be quickly and easily installed or removed, thus reducing the working efficiency of the waste heat boiler.

[0004] Therefore, we urgently need to provide a waste heat boiler. Utility Model Content

[0005] The purpose of this utility model is to provide a waste heat boiler to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a waste heat boiler, comprising a waste heat boiler and a support leg, wherein a waste heat recovery structure is provided above the waste heat boiler;

[0007] The waste heat recovery structure includes a filtration mechanism and a recovery mechanism;

[0008] The filtration mechanism includes a support plate, an air guide pipe, a mounting plate, a fixing plate, and a rotating rod. The top of the support plate is connected to the bottom of the recovery box. One end of the waste heat boiler is connected to one end of the air guide pipe. Both ends of the mounting plate are connected to the inner wall of the recovery box. Both ends of the fixing plate are connected to the inner wall of the recovery box. One side of the fixing plate is rotatably connected to one end of the rotating rod. A turbofan is fixedly installed at the other end of the rotating rod. A cam is fixedly installed on the outer wall of the rotating rod. One end of the cam presses against a cleaning plate. A movable plate is fixedly installed on one side of the cleaning plate. A guide rod is slidably connected to the inner wall of the movable plate. A filter screen is pressed against the inner side of the mounting plate. A limit plate is fixedly installed on one side of the filter screen. A fixing bolt is threadedly connected to the inner wall of the limit plate. A diversion plate is fixedly installed on the inner wall of the recovery box.

[0009] A further improvement is that there are two support plates, which are symmetrically distributed on the outer wall of the waste heat boiler, and two cleaning plates, which are symmetrically distributed on the inner side of the mounting plate, so as to quickly and conveniently absorb the heat of the flue gas and thus make it better used.

[0010] A further improvement is that there are two movable plates, which are symmetrically distributed on one side of the cleaning plate. A spring is fixedly installed between one side of the movable plate and the inner wall of the recycling bin, so as to quickly and conveniently clean the impurities on the surface of the filter screen and prevent the filter screen from becoming clogged.

[0011] A further improvement is that there are two filter screens, which are symmetrically distributed on the inner side of the mounting plate. A limiting hole is opened on one side of the mounting plate, and one end of the fixing bolt is threaded to the inner wall of the limiting hole. There are several diversion plates, which are symmetrically distributed on the inner wall of the recovery box. This allows the filter screens to be quickly and easily installed and removed, thereby enabling better filtration of flue gas.

[0012] A further improvement is that the recovery mechanism includes a heat absorption plate, a storage tank, a circulation pump, a circulation pipe, and a water level compensation pipe. The two ends of the heat absorption plate are connected to the inner wall of the recovery tank. The inner wall of the storage tank is connected to one end of the circulation pump. One end of the circulation pump is connected to one end of the circulation pipe. One side of the storage tank is connected to one end of the water level compensation pipe. A steam exhaust pipe is connected to the top of the storage tank.

[0013] A further improvement is that the circulation pipe is U-shaped and the water level compensation pipe is L-shaped, which enables the heat in the flue gas to be absorbed quickly and conveniently, thereby generating steam for better utilization.

[0014] A further improvement is that, after the outer wall of the waste heat boiler is connected to the inner wall of the support leg, the outer wall of the waste heat boiler is connected to the inner wall of the support plate, and the inner wall of the recovery box is connected to both ends of the storage box.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This waste heat boiler uses a filtration mechanism to reduce the flow rate and extend the residence time of flue gas after it enters the recovery box. The filter screen can effectively intercept solid impurities in the flue gas, reduce pollutant emissions, avoid environmental pollution, and automatically remove impurities accumulated on the surface of the filter screen to prevent clogging and maintain filtration efficiency. At the same time, the filter screen can be quickly and easily disassembled and installed, improving the working efficiency of the waste heat boiler.

[0017] 2. This waste heat boiler, through a recovery mechanism, can absorb heat from flue gas to heat the medium (such as water) in the circulation pipe. Driven by a circulation pump, a closed loop is formed, transferring heat to the water. Finally, steam is output through the steam discharge pipe 406, achieving efficient utilization of waste heat. Attached Figure Description

[0018] Figure 1This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 3 This is a partial structural schematic diagram of the present invention;

[0021] Figure 4 This is a schematic diagram of the filter mechanism of this utility model. Figure 1 ;

[0022] Figure 5 This is a schematic diagram of the filter mechanism of this utility model. Figure 2 ;

[0023] Figure 6 This utility model Figure 5 Enlarged structural diagram at point A in the diagram;

[0024] Figure 7 This is a schematic diagram of the structure of the recycling mechanism of this utility model.

[0025] In the diagram: 1. Waste heat boiler; 2. Support leg; 3. Filtering mechanism; 301. Support plate; 302. Air guide pipe; 303. Mounting plate; 304. Fixing plate; 305. Rotating rod; 306. Turbine fan; 307. Cam; 308. Cleaning plate; 309. Moving plate; 310. Guide rod; 311. Filter screen; 312. Limiting plate; 313. Fixing bolt; 314. Diverter plate; 315. Recovery box; 4. Recovery mechanism; 401. Heat absorption plate; 402. Storage box; 403. Circulation pump; 404. Circulation pipe; 405. Water level compensation pipe; 406. Steam discharge pipe. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-7 This utility model provides a technical solution:

[0028] Example 1:

[0029] A waste heat boiler includes a waste heat boiler 1 and a support leg 2, and a waste heat recovery structure is provided above the waste heat boiler 1.

[0030] The waste heat recovery structure includes a filtration mechanism 3 and a recovery mechanism 4;

[0031] The filtration mechanism 3 includes a support plate 301, an air guide pipe 302, a mounting plate 303, a fixing plate 304, and a rotating rod 305. The top of the support plate 301 is connected to the bottom of the recovery box 315. One end of the waste heat boiler 1 is connected to one end of the air guide pipe 302. Both ends of the mounting plate 303 are connected to the inner wall of the recovery box 315. Both ends of the fixing plate 304 are connected to the inner wall of the recovery box 315. One side of the fixing plate 304 is rotatably connected to one end of the rotating rod 305, and the other end of the rotating rod 305 is fixedly installed. There is a turbofan 306, a cam 307 fixedly installed on the outer wall of the rotating rod 305, a cleaning plate 308 pressed against one end of the cam 307, a moving plate 309 fixedly installed on one side of the cleaning plate 308, a guide rod 310 slidably connected to the inner wall of the moving plate 309, a filter screen 311 pressed against the inner side of the mounting plate 303, a limit plate 312 fixedly installed on one side of the filter screen 311, a fixing bolt 313 threadedly connected to the inner wall of the limit plate 312, and a diversion plate 314 fixedly installed on the inner wall of the recycling bin 315.

[0032] In this embodiment, there are two support plates 301, which are symmetrically distributed on the outer wall of the waste heat boiler 1. There are also two cleaning plates 308, which are symmetrically distributed on the inner side of the mounting plate 303. This allows for quick and convenient absorption of flue gas heat, thus enabling better use.

[0033] Furthermore, there are two movable plates 309, which are symmetrically distributed on one side of the cleaning plate 308. A spring is fixedly installed between one side of the movable plate 309 and the inner wall of the recycling box 315, so that the impurities on the surface of the filter screen 311 can be cleaned quickly and conveniently, thereby preventing the filter screen 311 from becoming clogged.

[0034] Furthermore, there are two filter screens 311, which are symmetrically distributed on the inner side of the mounting plate 303. A limiting hole is opened on one side of the mounting plate 303, and one end of the fixing bolt 313 is threaded to the inner wall of the limiting hole. There are several diversion plates 314, which are symmetrically distributed on the inner wall of the recovery box 315. This allows the filter screens 311 to be quickly and easily disassembled and assembled, thereby enabling better filtration of flue gas.

[0035] When sludge needs to be roasted, the operator places the sludge into the waste heat boiler 1. The flue gas generated by the waste heat boiler 1 enters the recovery box 315 through the gas guide pipe 302. The flow velocity of the flue gas inside the recovery box 315 is reduced by the installed diverter plate 314, thereby increasing the time the flue gas spends inside the recovery box 315. The heat of the flue gas is absorbed by the heat absorption plate 401, and impurities in the flue gas are filtered through the filter screen 311, thus purifying the flue gas before discharge. When the flue gas passes through, it drives the turbo fan 306 to rotate. The rotation of the turbo fan 306 drives the rotating rod 305 to rotate, which in turn drives the cam 307 to rotate. The rotation of the cam 307 can squeeze... The cleaning plate 308 moves, and the moving plate 309 moves, causing the moving plate 309 to slide on the guide rod 310 and compress the spring. When the cam 307 is no longer in contact with the cleaning plate 308, the spring force resets it, allowing the cleaning plate 308 to move back and forth to clean the surface of the filter screen 311, thus effectively preventing the filter screen 311 from clogging. When the filter screen 311 needs to be disassembled, the fixing bolt 313 is rotated to move it on the inner wall of the limiting plate 312. The movement of the fixing bolt 313 allows it to be pulled out from one side of the mounting plate 303, thus releasing the limiting fixation of the filter screen 311. At this time, the filter screen 311 can be disassembled. When it needs to be installed, the above steps are repeated in reverse.

[0036] Example 2:

[0037] Based on Embodiment 1, the recovery mechanism 4 includes a heat absorption plate 401, a storage tank 402, a circulation pump 403, a circulation pipe 404, and a water level compensation pipe 405. The two ends of the heat absorption plate 401 are connected to the inner wall of the recovery tank 315. The inner wall of the storage tank 402 is connected to one end of the circulation pump 403. One end of the circulation pump 403 is connected to one end of the circulation pipe 404. One side of the storage tank 402 is connected to one end of the water level compensation pipe 405. A steam exhaust pipe 406 is connected to the top of the storage tank 402.

[0038] In this embodiment, the circulation pipe 404 is U-shaped, the water level compensation pipe 405 is L-shaped, the heat absorption plate 401 is HP-SS316L, and the circulation pump 403 is an ISG vertical pipeline pump, which can quickly and conveniently absorb the heat in the flue gas, thereby better generating and utilizing steam.

[0039] Furthermore, after the outer wall of the waste heat boiler 1 is connected to the inner wall of the support leg 2, the outer wall of the waste heat boiler 1 is connected to the inner wall of the support plate 301, and the inner wall of the recovery box 315 is connected to both ends of the storage box 402.

[0040] When sludge needs to be roasted, the operator places the sludge into the waste heat boiler 1. The flue gas generated by the waste heat boiler 1 enters the recovery box 315 through the gas guide pipe 302. The filter mechanism 3 can quickly and easily filter impurities in the flue gas, thus purifying it. The heat in the flue gas can be absorbed by the heat absorption plate 401, and the circulation pump 403 circulates the water inside the heat absorption plate 401 through the circulation pipe 404. The circulation pipe 404 is attached to the heat absorption plate 401. When water enters the circulation pipe 404, the water is circulated. After passing through the circulating pipe 404, the heat from the heat absorption plate 401 heats the water inside the circulating pipe 404, turning it into a steam-water mixture. When the steam-water mixture returns to the storage tank 402, steam-water separation occurs, with the steam rising and the water flowing downwards due to gravity. The steam is discharged through the steam discharge pipe 406 for use in production and other heat users. The water level compensation pipe 405 automatically replenishes the water, thereby better absorbing and utilizing the heat from the flue gas, and thus better converting it into steam for production and other heat users.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A waste heat boiler comprising a waste heat boiler (1) and support legs (2), characterized in that: A waste heat recovery structure is provided above the waste heat boiler (1); The waste heat recovery structure includes a filtration mechanism (3) and a recovery mechanism (4); The filtration mechanism (3) includes a support plate (301), an air guide pipe (302), an mounting plate (303), a fixing plate (304), and a rotating rod (305). The top of the support plate (301) is connected to the bottom of the recovery box (315). One end of the waste heat boiler (1) is connected to one end of the air guide pipe (302). Both ends of the mounting plate (303) are connected to the inner wall of the recovery box (315). Both ends of the fixing plate (304) are connected to the inner wall of the recovery box (315). One side of the fixing plate (304) is rotatably connected to one end of the rotating rod (305). The other end of the rotating rod (305) is fixedly installed with... The turbine fan (306) has a cam (307) fixedly installed on the outer wall of the rotating rod (305). One end of the cam (307) presses against a cleaning plate (308). A moving plate (309) is fixedly installed on one side of the cleaning plate (308). A guide rod (310) is slidably connected to the inner wall of the moving plate (309). A filter screen (311) is pressed against the inner side of the mounting plate (303). A limiting plate (312) is fixedly installed on one side of the filter screen (311). A fixing bolt (313) is threadedly connected to the inner wall of the limiting plate (312). A diversion plate (314) is fixedly installed on the inner wall of the recycling bin (315).

2. A waste heat boiler according to claim 1, characterized in that There are two support plates (301), which are symmetrically distributed on the outer wall of the waste heat boiler (1). There are two cleaning plates (308), which are symmetrically distributed on the inner side of the mounting plate (303).

3. A waste heat boiler according to claim 1, characterized in that: There are two movable plates (309), which are symmetrically distributed on one side of the cleaning plate (308). A spring is fixedly installed between one side of the movable plate (309) and the inner wall of the recycling bin (315).

4. A waste heat boiler according to claim 1, characterized in that: There are two filter screens (311), which are symmetrically distributed on the inner side of the mounting plate (303). A limiting hole is opened on one side of the mounting plate (303). One end of the fixing bolt (313) is threaded to the inner wall of the limiting hole. There are several diversion plates (314), which are symmetrically distributed on the inner wall of the recycling box (315).

5. A waste heat boiler according to claim 1, characterized in that: The recycling mechanism (4) includes a heat absorption plate (401), a storage tank (402), a circulation pump (403), a circulation pipe (404), and a water level compensation pipe (405). The heat absorption plate (401) is connected to the inner wall of the recycling tank (315) at both ends. The inner wall of the storage tank (402) is connected to one end of the circulation pump (403). One end of the circulation pump (403) is connected to one end of the circulation pipe (404). One side of the storage tank (402) is connected to one end of the water level compensation pipe (405). A steam exhaust pipe (406) is connected to the top of the storage tank (402).

6. A waste heat boiler according to claim 5, characterised in that: The circulation pipe (404) is U-shaped, and the water level compensation pipe (405) is L-shaped.

7. A waste heat boiler according to claim 1, characterized in that: After the outer wall of the waste heat boiler (1) is connected to the inner wall of the support leg (2), the outer wall of the waste heat boiler (1) is connected to the inner wall of the support plate (301), and the inner wall of the recycling box (315) is connected to both ends of the storage box (402).

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