CN218883996U - Solid-state slag discharging boiler bottom slag waste heat recovery device - Google Patents
Solid-state slag discharging boiler bottom slag waste heat recovery device Download PDFInfo
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- CN218883996U CN218883996U CN202222609831.1U CN202222609831U CN218883996U CN 218883996 U CN218883996 U CN 218883996U CN 202222609831 U CN202222609831 U CN 202222609831U CN 218883996 U CN218883996 U CN 218883996U
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Abstract
The utility model discloses a sediment waste heat recovery device at bottom of solid-state row's sediment boiler, including the boiler, be provided with the slag notch on the boiler, the slag notch below is provided with steel band machine, its characterized in that: a first coiled pipe is arranged between the steel belt machine and the slag outlet, the first coiled pipe is arranged in parallel with the steel belt machine, a second coiled pipe is arranged on the steel belt machine, water inlets of the first coiled pipe and the second coiled pipe are connected with a water outlet of the water pump, water outlets of the first coiled pipe and the second coiled pipe are communicated with a water inlet of the water-water heat exchanger, and a water outlet of the water-water heat exchanger is connected with a water inlet of the water pump. This application is through carrying out the refrigerated mode of heat absorption to end sediment, can be to heat recovery utilization in the end sediment when accelerating end sediment cooling, has advantages such as convenient to use, longe-lived and energy saving and emission reduction, has effectively solved present solid-state row sediment boiler and has adopted air-cooled slagging machine when cooling end sediment, and the fuel burning can receive the problem of influence in the boiler.
Description
Technical Field
The utility model belongs to solid-state row's sediment boiler plant field, in particular to solid-state row sediment boiler bottom sediment waste heat recovery device.
Background
The existing solid slag discharging boiler adopts an air-cooled slag discharging machine, namely cold air enters from the bottom of the boiler to cool bottom slag (the bottom slag is a block body condensed after fuel is combusted). The temperature of a combustion area at the lower part of the hearth is reduced due to the entering of cold air, so that the stable combustion of the boiler is not facilitated; in addition, the cold air enters, the excess air coefficient in the hearth is improved, the smoke gas amount is increased, and the power consumption of the induced draft fan is increased.
Patent with publication number CN103672914A proposes ash cooler, propose including the cooling box in this patent, the top of cooling box is equipped with feed hopper, the internal rotation of cooling box is connected with by power device drive and vertical setting's main shaft, be equipped with on the main shaft and smash the deconcentrator, the lateral wall lower part of cooling box is equipped with the air-supply line that inclines downwards and blows to smashing the deconcentrator, be equipped with the baffle that is located the air-supply line top in the cooling box, the lateral wall upper portion of cooling box still is equipped with the return air hose, it has the cooling chamber to smash the deconcentrator, be equipped with the ventilation hole in the main shaft is located the section that the deconcentrator smashed the cooling chamber, be equipped with the hole of blowing that communicates its cooling chamber and cooling box inner chamber on smashing the deconcentrator, the bottom of cooling box is connected with the discharging pipe. However, it can be seen from the text and drawings that the patent also adopts the air cooling method to directly cool the ash, and is not suitable for solving the technical problems proposed in the present application.
The patent with the publication number of CN106477241A provides an ash conveyor, the patent provides an ash conveyor comprising a machine body, a motor, a chain, a driving chain wheel and a driven chain wheel, the machine body is a closed box body, the driving chain wheel and the driven chain wheel are respectively and fixedly installed in two ends of the machine body, the driving chain wheel drives the driven chain wheel through a traction chain, a scraper is arranged on the traction chain, the motor drives the driving chain wheel through the chain, a discharge hole is formed in the lower portion of one end of the machine body, a feed inlet is formed in the upper end of the middle horizontal portion of the machine body, a plurality of air inlets are formed in the side edge of the machine body, and an air outlet is formed in the discharge hole of the machine body. However, as can be seen from the text and the drawings of the patent, the patent also adopts an air cooling mode to directly cool the ash slag, and is not suitable for solving the technical problems proposed in the application.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a sediment waste heat recovery device at bottom of solid state row's sediment boiler is provided, when solving present solid state row's sediment boiler and adopting air-cooled slag extractor to the sediment cooling at the bottom, the problem that the fuel burning can receive the influence in the boiler.
In order to solve the problem, the utility model adopts the following technical scheme:
the utility model provides a sediment waste heat recovery device at bottom of solid-state row's sediment boiler, includes the boiler, is provided with the slag notch on the boiler, and the slag notch below is provided with steel strip machine, its characterized in that: be provided with first coiled pipe between steel band machine and the slag notch, first coiled pipe and steel band machine parallel arrangement are provided with the second coiled pipe on the steel band machine, and the water inlet of first coiled pipe and second coiled pipe all links to each other with the water pump delivery port, and the delivery port of first coiled pipe and second coiled pipe all is linked together with water heat exchanger water inlet, and water heat exchanger delivery port and water pump water inlet link to each other.
Furthermore, the number of the first coiled pipes and the second coiled pipes is at least one, the first coiled pipes and the second coiled pipes are distributed along the conveying direction of the steel belt machine, the water inlets of the first coiled pipes and the second coiled pipes are connected with the water outlet of the water pump, and the water outlets of the first coiled pipes and the second coiled pipes are communicated with the water inlet of the water-water heat exchanger.
Furthermore, the water inlets of the first coiled pipe and the second coiled pipe are respectively provided with an electromagnetic valve, and the water outlets of the first coiled pipe and the second coiled pipe are respectively provided with an electric control valve.
Furthermore, temperature sensors are arranged on water outlets of the first coiled pipe and the second coiled pipe.
Further, be provided with moisturizing device on the water pump water inlet, moisturizing device includes the moisturizing case, and moisturizing case delivery port and water pump intercommunication are provided with the solenoid valve to the moisturizing case water inlet, are provided with level sensor in the moisturizing case.
Furthermore, the water pump, the water level sensor, the temperature sensor, the electromagnetic valve and the electric regulating valve are all electrically connected with the controller.
Further, the steel belt machine comprises a rack and an annular steel belt, a driving wheel used for driving the annular steel belt to rotate is arranged on the rack, a second coiled pipe is arranged in the middle of the annular steel belt, and the second coiled pipe is uniformly distributed along the conveying direction of the annular steel belt.
Furthermore, a rectangular fixing frame connected with the slag outlet is arranged on each first coiled pipe.
The utility model discloses what gain is showing beneficial effect:
1. the utility model relates to a solid state slag discharging boiler bottom slag waste heat recovery device, which directly receives bottom slag and absorbs heat in the bottom slag by replacing a steel grate at a slag outlet of a boiler through a first serpentine pipe, and avoids heat waste in the bottom slag while cooling the bottom slag; the second serpentine pipe arranged on the steel belt machine is used for absorbing the heat in the bottom slag leaked by the first serpentine pipe, the first serpentine pipe and the second serpentine pipe absorb heat in a double-layer mode to absorb the heat in the bottom slag, and the heat in the bottom slag is recycled in the process of not affecting the cooling of the bottom slag; compare at present adopt the forced air cooling directly to cool off end sediment, produce the waste of heat and be unfavorable for fuel burning scheduling problem in the boiler, this application is through carrying out the refrigerated mode of heat absorption to end sediment, can be to heat recovery utilization in the end sediment when accelerating end sediment refrigerated, has advantages such as convenient to use, longe-lived and energy saving and emission reduction, has effectively solved present solid-state sediment boiler and has adopted the forced air cooling slag extractor when cooling end sediment, fuel burning can receive the problem of influence in the boiler.
2. Solenoid valve, electrical control valve and temperature sensor all can conveniently control circulation and the flow of each first coiled pipe and second coiled pipe internal water with the setting that the controller is connected electrically, can last the endothermic intensification when reducing the discharge in first coiled pipe and the second coiled pipe, when damage appears in certain first coiled pipe and second coiled pipe, also can keep apart alone and dismantle and change.
3. The water replenishing device can monitor the water amount in the pipeline, and after the water amount in the pipeline is reduced, water can be timely replenished through the water replenishing device, so that the water amount is kept sufficient.
Drawings
FIG. 1 is a schematic view of the structure of a solid state slagging boiler bottom slag waste heat recovery device in embodiment 1 of the present invention;
FIG. 2 is a schematic diagram of the principle structure of a bottom slag waste heat recovery device of a solid-state slagging boiler in embodiment 1 of the utility model;
FIG. 3 is a schematic structural view of the solid state slagging boiler bottom slag waste heat recovery device in embodiment 2 of the present invention;
FIG. 4 is a schematic view of the structure of the solid slag discharge boiler bottom slag waste heat recovery device in embodiment 3 of the present invention.
In the attached drawing, 1-a boiler, 2-a steel belt machine, 3-a first coiled pipe, 4-a second coiled pipe, 5-a water pump, 501-a water supplementing tank, 6-a water-water heat exchanger, 7-an electromagnetic valve, 701-an electric regulating valve, 8-a temperature sensor, 10-a rack, 11-an annular steel belt and 12-a rectangular fixing frame.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.
Example 1
As shown in fig. 1-2, a solid-state slagging boiler bottom slag waste heat recovery device comprises a boiler 1, a slag hole is formed in the bottom end of the boiler 1, a steel belt machine 2 for discharging bottom slag (the bottom slag is a block body condensed after fuel combustion) is arranged below the slag hole, a first coiled pipe 3 is arranged between the steel belt machine 2 and the slag hole, the steel grate at the position of the slag hole of the boiler 1 originally is replaced by the first coiled pipe 3 to enable bottom slag with heat to directly fall on the first coiled pipe 3, a second coiled pipe 4 is arranged above the steel belt machine 2, the number of the first coiled pipe 3 and the number of the second coiled pipe 4 are at least one, the first coiled pipe 3 and the second coiled pipe 4 are uniformly distributed along the conveying direction of the steel belt machine 2, water inlets of the first coiled pipe 3 and the second coiled pipe 4 are connected with a water outlet of a water pump 5 in a parallel mode, water outlets of the first coiled pipe 3 and the second coiled pipe 4 are communicated with a water inlet of a water heat exchanger 6 in a parallel mode, and a water pump 5 is connected with a water heat exchanger 5;
wherein, first coiled pipe 3 is used for accepting the bold end sediment that the slag notch directly fell, carry out earlier stage absorption to the end sediment that has great heat through first coiled pipe 3, the sediment can directly fall on steel band machine 2 when advancing first coiled pipe 3 at the bottom of the fritter, the sediment can transmit when the heat gives off and make second coiled pipe 4 carry out the heat absorption on the second coiled pipe 4 that lies in steel band machine 2 top, the rivers that are heated in driving first coiled pipe 3 and the second coiled pipe 4 through the operation of water pump 5 circulate, rivers after the heating pass through water heat exchanger 6, the heat is replaced on the water source that needs the heating by water heat exchanger 6, accomplish the utilization to end sediment waste heat, the direct forced air cooling of sediment at present has been avoided, lead to the emergence of the heat waste and the wind cooling time to burning production influence scheduling problem in boiler 1.
It should be noted that the water-water heat exchanger 6 has two water inlets and two water outlets, the water-water heat exchanger 6 is provided with a water inlet and a water outlet which are connected with the first coiled pipe 3, the second coiled pipe 4 and the water pump 5, and the rest water inlets and water outlets of the water-water heat exchanger 6 are connected with a water source which is required to be heated from the outside so as to exchange heat for the water with heat in the first coiled pipe 3 and the second coiled pipe 4.
The using method comprises the following steps: the steel belt machine 2 is opened to convey the bottom slag falling on the steel belt machine 2 to enable the bottom slag to leave the boiler 1, the water pump 5 is opened to enable water flow in the first coiled pipe 3 and the second coiled pipe 4 after heat absorption to pass through the water-water heat exchanger 6, the water-water heat exchanger 6 is communicated with an external water source needing heating, and the purpose of recycling the heat of the bottom slag is achieved by absorbing the heat of the water heated by the bottom slag through the external water source.
In conclusion, the first coiled pipe 3 replaces a steel grate at a slag outlet of the boiler 1 to directly receive the bottom slag and absorb heat in the bottom slag, so that the bottom slag is cooled and the waste of heat in the bottom slag is avoided; the second serpentine pipe 4 arranged on the steel belt machine 2 is used for absorbing heat in the bottom slag leaked by the first serpentine pipe 3, the heat in the bottom slag is absorbed through double-layer heat absorption of the first serpentine pipe 3 and the second serpentine pipe 4, and the heat in the bottom slag is recycled in the process that the bottom slag does not influence the cooling of the bottom slag; compare at present and adopt the forced air cooling directly to cool off end sediment, produce the waste of heat and be unfavorable for the fuel burning scheduling problem in the boiler 1, this application is through carrying out heat absorption refrigerated mode to end sediment, can be to heat recovery utilization in the end sediment when accelerating end sediment refrigerated, has advantages such as convenient to use, longe-lived and energy saving and emission reduction, has effectively solved present solid-state sediment boiler 1 and has adopted forced air cooling slag extractor when cooling end sediment, the fuel burning can receive the problem of influence in the boiler 1.
Example 2
As shown in fig. 3, the present embodiment has substantially the same structure as that of embodiment 1, and is further optimized based on embodiment 1, in order to facilitate maximum absorption of heat in the bottom slag by the first serpentine tube 3 and the second serpentine tube 4 and utilization of heat in the first serpentine tube 3 and the second serpentine tube 4 by the water-water heat exchanger 6, electromagnetic valves 7 are installed on water inlets of the first serpentine tube 3 and the second serpentine tube 4, electric control valves 701 are installed on water outlets of the first serpentine tube 3 and the second serpentine tube 4, and the flow of water passing through the first serpentine tube 3 and the second serpentine tube 4 can be adjusted by adjusting the openings of the electric control valves 701, so as to facilitate continuous temperature rise of the bottom slag in the water flow; the arrangement of the electromagnetic valve 7 and the electric control valve 701 can realize independent isolation by closing the electromagnetic valve 7 and the electric control valve 701 when one of the first coiled pipe 3 and the second coiled pipe 4 needs to be replaced, so that the replacement is convenient; temperature sensors 8 are respectively arranged on the water outlets of the first coiled pipe 3 and the second coiled pipe 4, and the water outlet temperatures of the first coiled pipe 3 and the second coiled pipe 4 are monitored through the temperature sensors 8;
a water supplementing device is arranged at a water inlet of the water pump 5, the water supplementing device comprises a water supplementing tank 501, a water level sensor is arranged in the water supplementing tank 501, a water outlet communicated with the water inlet of the water pump 5 is arranged on the water supplementing tank 501, a water inlet communicated with an external water source is arranged on the water supplementing tank 501, an electromagnetic valve 7 is arranged at the water inlet of the water supplementing tank 501, the water quantity in a pipeline is in a constant state through the arrangement of the water supplementing device, and the normal operation of the whole equipment is ensured when leakage or insufficient water quantity occurs;
in order to reduce the working intensity of workers and realize automatic control, the water pump 5, the water level sensor, the temperature sensor 8, the electromagnetic valve 7 and the electric control valve 701 are electrically connected; monitoring signals of the temperature sensor 8 and the water level sensor are received and processed, and then corresponding instructions are made on the water pump 5, the electromagnetic valve 7 and the electric regulating valve 701; for example, after the controller receives a signal that the temperature sensor 8 monitors the temperature decrease, the controller controls the electric control valve 701 to decrease the opening degree, so that continuous heating is facilitated, and meanwhile, the controller sends a rotation speed decreasing instruction to the water pump 5, so that cooperative operation is facilitated; after the controller receives a signal that the water level sensor monitors the reduction of the water level, the controller controls the electromagnetic valve 7 at the water inlet of the water replenishing tank 501 to be opened for replenishing water, and closes the electromagnetic valve 7 at the water inlet of the water replenishing tank 501 when the water level returns to the initial position again; the heat of the bottom slag can be absorbed and utilized conveniently.
Example 3
As shown in fig. 4, the present embodiment has substantially the same structure as that of embodiment 2, and is further optimized based on embodiment 2, in the experimental process, it is found that when the second serpentine tube 4 is located above the steel strip machine 2, the second serpentine tube 4 is easily affected by bottom slag, for example, the bottom slag accumulation height is too high, and ash on the bottom slag is greatly accumulated on the second serpentine tube 4, so that in the present embodiment, the steel strip machine 2 includes a frame 10 and an annular steel strip 11 mounted on the frame 10, a driving wheel for driving the annular steel strip 11 to rotate is mounted on the frame 10, the second serpentine tube 4 is located in the middle of the annular steel strip 11, the second serpentine tube 4 is uniformly distributed along the conveying direction of the annular steel strip 11, the second serpentine tube 4 is protected by the annular steel strip 11, the influence of the bottom slag on the second serpentine tube 4 is reduced, and the material of the annular steel strip 11 is not too much affected when the second serpentine tube 4 absorbs heat;
for the convenience of the first serpentine pipe 3 receiving the bottom slag, the first serpentine pipe 3 is prevented from being inclined due to the impact of the natural gravity of the bottom slag for a long time, a rectangular fixing frame 12 fixedly connected with the boiler 1 is installed at the bottom end of the first serpentine pipe 3, and the first serpentine pipe 3 is effectively supported through the rectangular fixing frame 12.
At present, the technical scheme of the application has been subjected to a pilot plant test, namely a small-scale experiment before large-scale mass production of products; after the pilot plant test is finished, user use investigation is developed in a small range, and the investigation result shows that the user satisfaction is high; the preparation of products for formal production for industrialization (including intellectual property risk early warning research) has been started.
Claims (8)
1. The utility model provides a sediment waste heat recovery unit at bottom of solid state row's sediment boiler which characterized in that: including boiler (1), be provided with the slag notch on boiler (1), the slag notch below is provided with steel band machine (2), its characterized in that: steel band machine (2) with be provided with first coiled pipe (3) between the slag notch, first coiled pipe (3) with steel band machine (2) parallel arrangement, be provided with second coiled pipe (4) on steel band machine (2), first coiled pipe (3) with the water inlet of second coiled pipe (4) all links to each other with water pump (5) delivery port, first coiled pipe (3) with the delivery port of second coiled pipe (4) all is linked together with water heat exchanger (6) water inlet, water heat exchanger (6) delivery port with water pump (5) water inlet links to each other.
2. The bottom slag waste heat recovery device of the solid state residue discharge boiler of claim 1, wherein: the number of the first coiled pipe (3) and the second coiled pipe (4) is at least one, the first coiled pipe (3) and the second coiled pipe (4) are distributed along the conveying direction of the steel strip machine (2), the water inlets of the first coiled pipe (3) and the second coiled pipe (4) are connected with the water outlet of the water pump (5), and the water outlets of the first coiled pipe (3) and the second coiled pipe (4) are communicated with the water inlet of the water-water heat exchanger (6).
3. The bottom slag waste heat recovery device of the solid state residue discharge boiler of claim 2, wherein: the water inlets of the first coiled pipe (3) and the second coiled pipe (4) are respectively provided with an electromagnetic valve (7), and the water outlets of the first coiled pipe (3) and the second coiled pipe (4) are respectively provided with an electric control valve (701).
4. The bottom slag waste heat recovery device of the solid state residue discharge boiler of claim 3, wherein: and temperature sensors (8) are arranged on the water outlets of the first coiled pipe (3) and the second coiled pipe (4).
5. The bottom slag waste heat recovery device of the solid state residue discharge boiler according to claim 4, wherein: the water replenishing device is arranged on a water inlet of the water pump (5) and comprises a water replenishing tank (501), a water outlet of the water replenishing tank (501) is communicated with the water pump (5), the water inlet of the water replenishing tank (501) is provided with the electromagnetic valve (7), and a water level sensor is arranged in the water replenishing tank (501).
6. The bottom slag waste heat recovery device of the solid-state slagging boiler of claim 5, characterized in that: the water pump (5), the water level sensor, the temperature sensor (8), the electromagnetic valve (7) and the electric regulating valve (701) are all electrically connected with a controller.
7. The bottom slag waste heat recovery device of the solid state residue discharge boiler of claim 6, wherein: the steel band machine (2) comprises a machine frame (10) and an annular steel band (11), wherein a driving wheel used for driving the annular steel band (11) to rotate is arranged on the machine frame (10), a second coiled pipe (4) is arranged in the middle of the annular steel band (11), and the second coiled pipe (4) is uniformly distributed in the conveying direction of the annular steel band (11).
8. The bottom slag waste heat recovery device of the solid state residue discharge boiler of claim 7, wherein: and rectangular fixing frames (12) connected with the slag outlet are arranged on the first coiled pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222609831.1U CN218883996U (en) | 2022-09-30 | 2022-09-30 | Solid-state slag discharging boiler bottom slag waste heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222609831.1U CN218883996U (en) | 2022-09-30 | 2022-09-30 | Solid-state slag discharging boiler bottom slag waste heat recovery device |
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| Publication Number | Publication Date |
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| CN218883996U true CN218883996U (en) | 2023-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222609831.1U Active CN218883996U (en) | 2022-09-30 | 2022-09-30 | Solid-state slag discharging boiler bottom slag waste heat recovery device |
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| CN (1) | CN218883996U (en) |
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2022
- 2022-09-30 CN CN202222609831.1U patent/CN218883996U/en active Active
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