CN113390098A - Method and equipment for recycling steam-water heat of boiler drain flash tank - Google Patents
Method and equipment for recycling steam-water heat of boiler drain flash tank Download PDFInfo
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- CN113390098A CN113390098A CN202110687165.0A CN202110687165A CN113390098A CN 113390098 A CN113390098 A CN 113390098A CN 202110687165 A CN202110687165 A CN 202110687165A CN 113390098 A CN113390098 A CN 113390098A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000004064 recycling Methods 0.000 title claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 132
- 239000001301 oxygen Substances 0.000 claims description 132
- 229910052760 oxygen Inorganic materials 0.000 claims description 132
- 238000003756 stirring Methods 0.000 claims description 103
- 239000003245 coal Substances 0.000 claims description 97
- 238000002156 mixing Methods 0.000 claims description 92
- 238000007599 discharging Methods 0.000 claims description 57
- 239000000843 powder Substances 0.000 claims description 51
- 238000010438 heat treatment Methods 0.000 claims description 36
- 238000011084 recovery Methods 0.000 claims description 26
- 230000002209 hydrophobic effect Effects 0.000 claims description 23
- 238000011068 loading method Methods 0.000 claims description 22
- 239000000428 dust Substances 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 7
- 239000000779 smoke Substances 0.000 claims description 7
- 239000010883 coal ash Substances 0.000 claims description 4
- 239000002912 waste gas Substances 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 239000004071 soot Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000007664 blowing Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K1/00—Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D11/00—Feed-water supply not provided for in other main groups
- F22D11/02—Arrangements of feed-water pumps
- F22D11/06—Arrangements of feed-water pumps for returning condensate to boiler
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Water Supply & Treatment (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention discloses a method and equipment for recovering steam-water heat of a boiler drain flash tank.
Description
Technical Field
The invention relates to the technical field of boiler heat recovery, in particular to a method and equipment for recovering steam-water heat of a boiler drain flash tank.
Background
At present, in the starting and stopping processes of a boiler, especially in the starting hot state washing stage, a large amount of desalted water heated by the boiler is discharged into a boiler drain flash tank and is discharged into a unit drain tank through reused water for reducing the temperature, and when the boiler soot blowing drain is discharged into the boiler drain flash tank in normal operation, hot water waste is caused.
The invention effectively recycles the wasted heat sources, reduces the loss of the heat sources of the boiler, improves the temperature of condensed water and improves the heat efficiency of the boiler, and the scheme is developed by aiming at the problems.
Disclosure of Invention
The technical scheme of the invention for realizing the aim is as follows: a hydrophobic flash tank of boiler soda heat recovery equipment includes: the boiler drain flash tank comprises a boiler drain flash tank heater and a heating support, wherein the boiler drain flash tank is installed on the heating support, a mixed loading structure is installed on the heating support, and a heat recovery structure is installed on the inner side of the boiler drain flash tank;
the mixed loading structure comprises: the coal powder mixing device comprises a coal powder storage tank, a water storage tank, a pulverizer, a grinder, a coal powder mixing cylindrical tank, a pair of oxygen supply pressurizing tanks, a mixing driving machine, a mixing and stirring disc, a plurality of mixing and stirring sheets, an oxygen supply assembly and a sealing feeding assembly;
the coal powder storage box is installed in the inner side of the heating support, the crushing box is installed in the inner side of the heating support, the grinder is inserted in the top end of the coal powder storage box, the grinder is connected with the grinder, the coal powder mixing cylinder box is installed in the inner side of the heating support, the coal powder mixing cylinder box is inserted in the boiler hydrophobic flash tank heater, the oxygen supply pressurizing box is installed in the two sides of the heating support, the two pairs of the oxygen supply pressurizing box are located in the two sides of the coal powder mixing cylinder box, the mixing driving machine is inserted in the coal powder mixing cylinder box through a bearing, the mixing stirring disc is installed on the driving end of the mixing driving machine, a plurality of the mixing stirring sheets are evenly installed on the mixing stirring disc, and the oxygen supply assembly is installed in the pair of the oxygen supply pressurizing box and the coal powder mixing cylinder box, the sealed feeding assembly is connected to the pulverized coal storage tank and the pulverized coal mixing cylindrical tank, the water storage tank is installed on the heating support, and the water storage tank is connected to the boiler drain flash tank heater.
Preferably, the heat recovery structure comprises: the stirring device comprises a plurality of stirring shaft tubes, a plurality of stirring chain wheels, a pair of stirring chains, a pair of stirring driving machines, a plurality of stirring sheets, a shunt valve, a plurality of shunt drainage tubes and a plurality of drainage tubes;
a plurality of stirring central siphon respectively through the bearing cartridge in the buggy bin and the water storage box, it is a pair of the stirring driving machine install respectively in the buggy bin and the lateral wall of water storage box, a plurality of stirring chain wheel install respectively in a plurality of stirring central siphon and a pair of the drive of stirring driving machine is served, and is a pair of stirring chain suit in a plurality of stirring chain wheel, a plurality of the stirring piece install respectively in a plurality of the outside of stirring central siphon, shunt valve install in the inboard of the hydrophobic flash vessel heater of boiler, a plurality of shunt drainage tube installs respectively in a plurality of the both sides of stirring central siphon, a plurality of the drainage tube is connected respectively in a plurality of shunt drainage tube and shunt valve.
Preferably, the oxygen supply assembly comprises: a pair of oxygen supply valves, a pair of sealing valves, a pair of oxygen supply driving machines, a pair of oxygen supply driving bevel gears, a pair of oxygen supply transmission bevel gears, a pair of oxygen supply threaded pipes, a pair of oxygen supply threaded rods and a pair of oxygen supply plates;
the pair of oxygen supply driving machines are respectively arranged at the top ends of the pair of oxygen supply pressurizing boxes, the pair of oxygen supply driving bevel gears are respectively arranged at the driving ends of the pair of oxygen supply driving machines, the pair of oxygen supply threaded pipes are respectively inserted at the top ends of the pair of oxygen supply pressurizing boxes through bearings, the pair of oxygen supply transmission bevel gears are respectively arranged at the outer sides of the pair of oxygen supply threaded pipes, and it is a pair of oxygen suppliment transmission helical gear respectively with a pair of oxygen suppliment drive helical gear engagement, it is a pair of oxygen suppliment threaded rod activity cartridge respectively in a pair of the inboard of oxygen suppliment threaded pipe, it is a pair of the oxygen suppliment board is installed respectively in a pair of oxygen suppliment threaded rod, it is a pair of oxygen suppliment valve and a pair of sealed valve install respectively in a pair of the both sides of oxygen suppliment pressurization case, and a pair of oxygen suppliment valve connect respectively in the both sides of the mixed cylinder case of buggy.
Preferably, the sealing and feeding assembly comprises: the feeding device comprises a pair of feeding pipes, a pair of concave feeding blocks, a pair of feeding hydraulic push rods, a pair of feeding and discharging shafts, a pair of feeding and discharging plates and a pair of shielding plates;
the pair of feeding pipes are arranged on the heating bracket, the pair of feeding pipes are respectively provided with a feeding port and a discharging port, the pair of feeding ports are connected with the pulverized coal storage box, the pair of discharging ports are connected with the pulverized coal mixing cylindrical box, the pair of feeding hydraulic push rods are respectively arranged at the inner sides of the pair of feeding pipes, the pair of concave feeding blocks are respectively movably inserted at the inner sides of the pair of feeding pipes, the pair of concave feeding blocks are respectively connected to the pushing ends of the pair of feeding hydraulic push rods, discharging drainage openings are respectively formed in the inner sides of the pair of concave feeding blocks, the pair of feeding and discharging shafts are respectively inserted into the inner sides of the pair of discharging drainage openings through bearings, the pair of feeding and discharging plates are respectively mounted on the pair of feeding and discharging shafts, and the pair of baffle plates are respectively mounted on the pair of concave feeding blocks.
Preferably, the outer side of the boiler drain flash tank heater is provided with a discharging recovery structure;
the unloading recovery structure comprises: the device comprises a discharging driving pipe, a plurality of discharging hydraulic push rods, a discharging L-shaped plate, an L-shaped discharging drainage pipe and a dust collecting box;
the utility model discloses a boiler drainage flash tank heater, including the drain flash tank heater, the drive tube cartridge of unloading in the hydrophobic flash tank heater bottom of boiler, a plurality of the hydraulic push rod that unloads even install in the inboard of the drive tube of unloading, the L template of unloading install in a plurality of the promotion of the hydraulic push rod of unloading is served, the drainage tube cartridge of unloading of L type in the hydrophobic flash tank heater of boiler, just the drainage tube of unloading of L type is just right the drive tube of unloading, the dust collecting box install in the hydrophobic flash tank heater's of boiler bottom lateral wall, just the dust collecting box connect in the drainage tube of unloading of L type.
Preferably, a drainage tube is arranged on the water storage tank, the drainage tube is connected to the boiler drainage flash tank heater, and the drainage tube is inserted in the dust collecting box.
A method for recovering steam-water heat of a boiler hydrophobic flash tank comprises the following operation steps: step S1, crushing and grinding; step S2, sealing and quantitatively feeding; step S3, mixing the coal powder and the oxygen; step S4, recovering heat of the waste gas; step S5, discharging dust; step S6, recovering dust heat;
step S1: pouring coal raw materials into a crushing box and a crusher;
step S2: quantitatively feeding the coal powder through a sealed feeding assembly;
step S3: pressurizing and mixing the coal powder and air to generate a rotating airflow;
step S4: guiding the burned smoke to the water reservoir and the inner side of the pulverized coal storage tank;
step S5: conveying the burnt powder at the bottom end of the boiler drain flash tank heater out of the boiler drain flash tank heater;
step S6: the water in the reservoir flows through the coal ash.
And step S2, coal powder is guided into the concave feeding block, the concave feeding block is pushed to the discharge opening through the feeding hydraulic push rod, so that the feeding and discharging plate on the concave feeding block is not shielded by the feeding pipe, the feeding and discharging plate rotates along the discharging shaft, and the powder is guided into the pulverized coal mixing cylindrical box.
And S4, guiding the smoke into a plurality of stirring shaft pipes, and preheating water and coal through the high-temperature stirring shaft pipes.
In step S5, the heat in the soot is recovered.
The method and the equipment for recovering the steam-water heat of the boiler drain flash tank, which are manufactured by the technical scheme of the invention, recover the heat in the smoke through the heat recovery structure, recover the heat through the unloading recovery structure, and increase the contact area of pulverized coal powder and air so as to achieve more thorough combustion of the pulverized coal, thereby reducing the loss of a boiler heat source, improving the temperature of condensed water and improving the thermal efficiency of the boiler.
Drawings
Fig. 1 is a schematic view of a main structure of a method and an apparatus for recovering steam-water heat of a hydrophobic boiler flash tank according to the present invention.
FIG. 2 is a schematic diagram of a side view of a method and apparatus for recovering steam-water heat of a hydrophobic boiler flash tank according to the present invention.
Fig. 3 is an enlarged view of the structure of the portion "a" in fig. 1.
Fig. 4 is an enlarged view of the structure of the portion "B" in fig. 1.
Fig. 5 is an enlarged view of the structure of the portion "C" in fig. 2.
In the figure: 1. a boiler drain flash tank heater; 2. heating the stent; 3. a pulverized coal storage tank; 4. a water storage tank; 5. a pulverizer; 6. a grinder; 7. a pulverized coal mixing cylindrical box; 8. an oxygen supply pressurization box; 9. a hybrid driver; 10. mixing and stirring a disc; 11. mixing and stirring sheets; 12. a stirring shaft tube; 13. a stirring chain wheel; 14. a stirring chain; 15. a stirring driver; 16. a stirring sheet; 17. a shunt valve; 18. an oxygen supply valve; 19. sealing the valve; 20. an oxygen supply driver; 21. oxygen is supplied to drive the helical gear; 22. oxygen supply transmission helical gear; 23. an oxygen supply threaded pipe; 24. an oxygen supply threaded rod; 25. an oxygen supply plate; 26. feeding pipes; 27. a concave feeding block; 28. a feeding hydraulic push rod; 29. a loading and unloading shaft; 30. a feeding stripper plate; 31. a shielding plate.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings, as shown in fig. 1 to 5, a steam-water heat recovery device for a hydrophobic boiler flash tank, comprising: the boiler drain flash tank comprises a boiler drain flash tank heater 1 and a heating support 2, wherein the boiler drain flash tank is installed on the heating support 2, a mixed feeding structure is installed on the heating support 2, and a heat recovery structure is installed on the inner side of the boiler drain flash tank; the mixed loading structure comprises: the coal powder mixing device comprises a coal powder storage tank 3, a water storage tank 4, a pulverizer 5, a grinder 6, a coal powder mixing cylindrical tank 7, a pair of oxygen supply pressurizing tanks 8, a mixing driving machine 9, a mixing and stirring disk 10, a plurality of mixing and stirring sheets 1611, an oxygen supply assembly and a sealing feeding assembly; the pulverized coal bin 3 is installed in the inner side of the heating support 2, the crushing box is installed in the inner side of the heating support 2, the grinder 6 is inserted in the top end of the pulverized coal bin 3, the grinder 6 is connected with the pulverizer 5, the pulverized coal mixing cylindrical box 7 is installed in the inner side of the heating support 2, the pulverized coal mixing cylindrical box 7 is inserted in the boiler hydrophobic flash tank heater 1, the oxygen supply pressurizing box 8 is installed in the two sides of the heating support 2, the oxygen supply pressurizing box 8 is located in the two sides of the pulverized coal mixing cylindrical box 7, the mixing driving machine 9 is inserted in the pulverized coal mixing cylindrical box 7 through a bearing, the mixing stirring disk 10 is installed on the driving end of the mixing driving machine 9, and the mixing stirring sheets 1611 are evenly installed in the mixing stirring disk 10, the oxygen supply assembly is arranged on the pair of oxygen supply pressurizing boxes 8 and the pulverized coal mixing cylindrical box 7, the sealing feeding assembly is connected to the pulverized coal storage box 3 and the pulverized coal mixing cylindrical box 7, the water storage box 4 is arranged on the heating bracket 2, and the water storage box 4 is connected to the boiler drainage flash tank heater 1; the heat recovery structure comprises: the stirring device comprises a plurality of stirring shaft tubes 12, a plurality of stirring chain wheels 13, a pair of stirring chains 14, a pair of stirring driving machines 15, a plurality of stirring blades 16, a shunt valve 17, a plurality of shunt drainage tubes and a plurality of drainage tubes; the stirring shaft tubes 12 are respectively inserted into the coal powder storage box 3 and the water storage box 4 through bearings, a pair of stirring driving machines 15 are respectively installed on the side walls of the coal powder storage box 3 and the water storage box 4, a plurality of stirring chain wheels 13 are respectively installed on the driving ends of the stirring shaft tubes 12 and the stirring driving machines 15, a pair of stirring chains 14 are sleeved on the stirring chain wheels 13, a plurality of stirring sheets 16 are respectively installed on the outer sides of the stirring shaft tubes 12, the shunt valve 17 is installed on the inner side of the boiler drainage flash tank heater 1, a plurality of shunt drainage tubes are respectively installed on the two sides of the stirring shaft tubes 12, and a plurality of drainage tubes are respectively connected to the shunt drainage tubes and the shunt valve 17; the oxygen supply assembly comprises: a pair of oxygen supply valves 18, a pair of sealing valves 19, a pair of oxygen supply driving machines 20, a pair of oxygen supply driving bevel gears 21, a pair of oxygen supply driving bevel gears 22, a pair of oxygen supply threaded pipes 23, a pair of oxygen supply threaded rods 24, and a pair of oxygen supply plates 25; the pair of oxygen supply driving machines 20 are respectively mounted on the top ends of the pair of oxygen supply pressurizing boxes 8, the pair of oxygen supply driving bevel gears 21 are respectively mounted on the driving ends of the pair of oxygen supply driving machines 20, the pair of oxygen supply screw pipes 23 are respectively inserted into the top ends of the pair of oxygen supply pressurizing boxes 8 through bearings, the pair of oxygen supply transmission bevel gears 22 are respectively mounted on the outer sides of the pair of oxygen supply screw pipes 23, and a pair of said oxygen supply transmission helical gear 22 is respectively engaged with a pair of said oxygen supply driving helical gear 21, a pair of said oxygen supply threaded rods 24 are respectively movably inserted in the inner sides of a pair of said oxygen supply threaded tubes 23, a pair of said oxygen supply plates 25 are respectively installed in a pair of said oxygen supply threaded rods 24, a pair of said oxygen supply valves 18 and a pair of said sealing valves 19 are respectively installed in both sides of a pair of said oxygen supply pressurized tanks 8, and a pair of the oxygen supply valves 18 are respectively connected to the two sides of the pulverized coal mixing cylindrical box 7; the sealed material loading subassembly contains: a pair of feeding pipes 26, a pair of concave feeding blocks 27, a pair of feeding hydraulic push rods 28, a pair of feeding and discharging shafts 29, a pair of feeding and discharging plates 30, and a pair of shielding plates 31; a pair of the feeding pipes 26 are mounted on the heating support 2, a pair of the feeding pipes 26 are respectively provided with a feeding port and a discharging port, the feeding ports are connected to the pulverized coal storage tank 3, the discharging ports are connected to the pulverized coal mixing cylindrical tank 7, a pair of the feeding hydraulic push rods 28 are respectively mounted on the inner sides of the feeding pipes 26, a pair of the concave feeding blocks 27 are respectively movably inserted on the inner sides of the feeding pipes 26, the pair of concave feeding blocks 27 are respectively connected to the pushing ends of the pair of feeding hydraulic push rods 28, the inner sides of the pair of concave feeding blocks 27 are respectively provided with a discharging drainage port, the pair of feeding and discharging shafts 29 are respectively inserted into the inner sides of the pair of discharging drainage ports through bearings, the pair of feeding and discharging plates 30 are respectively mounted on the pair of feeding and discharging shafts 29, and the pair of shielding plates 31 are respectively mounted on the pair of concave feeding blocks 27; the outer side of the boiler drainage flash tank heater 1 is provided with a discharging recovery structure; the unloading recovery structure comprises: the device comprises a discharging driving pipe, a plurality of discharging hydraulic push rods, a discharging L-shaped plate, an L-shaped discharging drainage pipe and a dust collecting box; the discharging driving pipe is inserted into the bottom end of the boiler drain flash tank heater 1, a plurality of discharging hydraulic push rods are uniformly arranged on the inner side of the discharging driving pipe, the discharging L-shaped plate is arranged on the pushing ends of the discharging hydraulic push rods, the L-shaped discharging drainage pipe is inserted into the boiler drain flash tank heater 1 and is right opposite to the discharging driving pipe, the dust collecting box is arranged on the side wall of the bottom end of the boiler drain flash tank heater 1, and the dust collecting box is connected to the L-shaped discharging drainage pipe; be provided with the drainage tube on the cistern, the drainage tube connect in hydrophobic flash vessel heater 1 of boiler, just the drainage tube cartridge in dust collecting box.
A method for recovering steam-water heat of a boiler hydrophobic flash tank comprises the following operation steps: step S1, crushing and grinding; step S2, sealing and quantitatively feeding; step S3, mixing the coal powder and the oxygen; step S4, recovering heat of the waste gas; step S5, discharging dust; step S6, recovering dust heat;
step S1: pouring coal raw materials into a crushing box and a crusher 5;
step S2: quantitatively feeding the coal powder through a sealed feeding assembly;
step S3: pressurizing and mixing the coal powder and air to generate a rotating airflow;
step S4: guiding the burned smoke to the water reservoir and the inner side of the pulverized coal storage tank 3;
step S5: conveying the burnt powder at the bottom end of the boiler drain flash tank heater 1 out of the boiler drain flash tank heater 1;
step S6: the water in the reservoir flows through the coal ash.
In the step S2, the coal powder is guided into the concave loading block 27, and the concave loading block 27 is pushed to the discharge opening by the loading hydraulic push rod 28, so that the loading and unloading plate 30 on the concave loading block 27 is not shielded by the loading pipe 26, the loading and unloading plate 30 rotates along the unloading shaft, and the powder is guided into the pulverized coal mixing cylindrical box 7.
In the step S4, the smoke is guided into the stirring shaft tubes 12, and the water and coal are preheated by the high-temperature stirring shaft tubes 12.
In step S5, the heat in the soot is recovered.
The present embodiment is characterized by comprising: the boiler drain flash tank comprises a boiler drain flash tank heater and a heating bracket, wherein the boiler drain flash tank is arranged on the heating bracket, a mixed feeding structure is arranged on the heating bracket, and a heat recovery structure is arranged on the inner side of the boiler drain flash tank; the mixed loading structure comprises: the coal powder mixing device comprises a coal powder storage tank, a water storage tank, a pulverizer, a grinder, a coal powder mixing cylindrical tank, a pair of oxygen supply pressurizing tanks, a mixing driving machine, a mixing and stirring disc, a plurality of mixing and stirring sheets, an oxygen supply assembly and a sealing feeding assembly; the pulverized coal storage box is arranged on the inner side of the heating bracket, the crushing box is arranged on the inner side of the heating bracket, the grinder is inserted at the top end of the pulverized coal storage box, the grinder is connected with the grinder, the pulverized coal mixing cylindrical box is arranged at the inner side of the heating bracket, the pulverized coal mixing cylindrical box is inserted in the boiler drain flash tank heater, a pair of oxygen supply pressurizing boxes are arranged at the two sides of the heating bracket, the two pairs of oxygen supply pressurizing boxes are positioned on two sides of the pulverized coal mixing cylindrical box, the mixing driving machine is inserted into the pulverized coal mixing cylindrical box through a bearing, the mixing stirring disc is arranged on a driving end of the mixing driving machine, the plurality of mixing stirring sheets are uniformly arranged on the mixing stirring disc, the oxygen supply assembly is arranged on the oxygen supply pressurizing boxes and the pulverized coal mixing cylindrical box, the sealing feeding assembly is connected with the pulverized coal storage box and the pulverized coal mixing cylindrical box, the water storage box is arranged on the heating bracket, and the water storage box is connected to a boiler drain flash vessel heater; retrieve the heat in the smog through the heat recovery structure, retrieve the heat through unloading the recovery structure simultaneously, thereby will increase the area of contact of buggy powder and air simultaneously and reach more thoroughly the burning of buggy to reach and reduce boiler heat source loss, improve the condensate temperature, improve boiler thermal efficiency.
All the electrical components in the present application are connected with the power supply adapted to the electrical components through the wires, and an appropriate controller should be selected according to actual conditions to meet the control requirements, and specific connection and control sequences should be obtained.
Example (b): by pouring the raw materials into the pulverizer 5, pulverize the raw materials through the pulverizer 5, the coal after pulverizing falls into the mill 6, grind the raw materials into powder through the mill 6, the coal that grinds into powder falls into the inboard of buggy bin 3, through stirring the operation of driver 15 at the same time, drive the stirring sprocket 13 on the drive end of stirring driver 15 and rotate, drive the stirring chain 14 that meshes with it through stirring sprocket 13 and rotate, drive a plurality of stirring sprocket 13 on it through stirring chain 14 and rotate, drive stirring central siphon 12 on it respectively through a plurality of stirring sprocket 13 and rotate, drive a plurality of stirring pieces 16 on it respectively through a plurality of stirring central siphon 12 and rotate, rotate through a plurality of stirring pieces 16, stir the coal powder in the buggy bin 3, the phenomenon of jam has been avoided appearing, drainage coal raw materials to the inboard of buggy mixing box 7 simultaneously, meanwhile, the mixing and stirring disk 10 on the driving end of the mixing and stirring machine 9 is driven to rotate by the operation of the mixing and stirring machine 9, the rotating mixing and stirring disk 10 drives a plurality of mixing and stirring sheets 1611 on the mixing and stirring disk to rotate, so that air and pulverized coal in the pulverized coal mixing cylindrical box 7 generate rotating air flow, the contact area of the pulverized coal and the air is enlarged, meanwhile, the pulverized coal is extruded into the boiler drain flash tank heater 1 by an oxygen supply assembly, an oxygen supply valve 18 on an oxygen supply pressurizing box 8 in the oxygen supply assembly is opened, a sealing valve 19 is closed, the oxygen supply driving machine 20 runs clockwise, an oxygen supply valve 18 on another oxygen supply pressurizing box 8 is closed, a sealing valve 19 is opened, the oxygen supply driving machine 20 runs anticlockwise, air outside the oxygen supply pressurizing box 8 is pumped to the inner side, and air inside the oxygen supply pressurizing box 8 is extruded to the inner side of the pulverized coal mixing cylindrical box 7 respectively, then the above-mentioned equipment is reversely operated, so as to always supply oxygen to the pulverized coal mixing cylindrical box 7, the oxygen supply driver 20 is operated clockwise or anticlockwise to drive the oxygen supply driving helical gear 21 on the driving end to rotate clockwise or anticlockwise, so as to drive the oxygen supply driving helical gear 22 engaged with the gear to rotate clockwise or anticlockwise, the oxygen supply driving helical gear 22 drives the oxygen supply threaded pipe 23 thereon to rotate clockwise or anticlockwise to drive the oxygen supply threaded rod 24 on the inner side of the oxygen supply threaded pipe 23 to rotate clockwise or anticlockwise, so that the oxygen supply threaded rod 24 moves up and down in the oxygen supply threaded pipe 23, respectively drives the oxygen supply plate 25 to move up and down, so as to extrude the air in the oxygen supply pressurizing box 8 into the pulverized coal mixing cylindrical box 7 or pump the air on the outer side of the pulverized coal mixing cylindrical box 7 to the inner side, and respectively drain the smog into the plurality of stirring shaft pipes 12 through the shunt valve 17, the plurality of shunt drainage pipes and the plurality of drainage pipes, thereby reach and give off the heat in a plurality of stirring central siphon 12, give off the heat respectively the aquatic in buggy and the cistern through stirring central siphon 12 of a plurality of high temperature, thereby reach and retrieve the heat in the waste gas, the while is through the operation of the hydraulic push rod of unloading a plurality of in the actuating tube of unloading, promote the L template of unloading respectively, through the L template of unloading with the waste material propelling movement L type drainage tube of unloading, through the L type drainage tube of unloading with the waste material drainage to the dust collecting box, the water in the drainage tube is preheated through the dust in the dust collecting box.
The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.
Claims (10)
1. A hydrophobic flash tank of boiler soda heat recovery equipment includes: the boiler drain flash tank heating device is characterized in that the boiler drain flash tank is mounted on the heating support, a mixed loading structure is mounted on the heating support, and a heat recovery structure is mounted on the inner side of the boiler drain flash tank;
the mixed loading structure comprises: the coal powder mixing device comprises a coal powder storage tank, a water storage tank, a pulverizer, a grinder, a coal powder mixing cylindrical tank, a pair of oxygen supply pressurizing tanks, a mixing driving machine, a mixing and stirring disc, a plurality of mixing and stirring sheets, an oxygen supply assembly and a sealing feeding assembly;
the coal powder storage box is installed in the inner side of the heating support, the crushing box is installed in the inner side of the heating support, the grinder is inserted in the top end of the coal powder storage box, the grinder is connected with the grinder, the coal powder mixing cylinder box is installed in the inner side of the heating support, the coal powder mixing cylinder box is inserted in the boiler hydrophobic flash tank heater, the oxygen supply pressurizing box is installed in the two sides of the heating support, the two pairs of the oxygen supply pressurizing box are located in the two sides of the coal powder mixing cylinder box, the mixing driving machine is inserted in the coal powder mixing cylinder box through a bearing, the mixing stirring disc is installed on the driving end of the mixing driving machine, a plurality of the mixing stirring sheets are evenly installed on the mixing stirring disc, and the oxygen supply assembly is installed in the pair of the oxygen supply pressurizing box and the coal powder mixing cylinder box, the sealed feeding assembly is connected to the pulverized coal storage tank and the pulverized coal mixing cylindrical tank, the water storage tank is installed on the heating support, and the water storage tank is connected to the boiler drain flash tank heater.
2. The steam-water heat recovery device of the boiler drain flash tank of claim 1, wherein the heat recovery structure comprises: the stirring device comprises a plurality of stirring shaft tubes, a plurality of stirring chain wheels, a pair of stirring chains, a pair of stirring driving machines, a plurality of stirring sheets, a shunt valve, a plurality of shunt drainage tubes and a plurality of drainage tubes;
a plurality of stirring central siphon respectively through the bearing cartridge in the buggy bin and the water storage box, it is a pair of the stirring driving machine install respectively in the buggy bin and the lateral wall of water storage box, a plurality of stirring chain wheel install respectively in a plurality of stirring central siphon and a pair of the drive of stirring driving machine is served, and is a pair of stirring chain suit in a plurality of stirring chain wheel, a plurality of the stirring piece install respectively in a plurality of the outside of stirring central siphon, shunt valve install in the inboard of the hydrophobic flash vessel heater of boiler, a plurality of shunt drainage tube installs respectively in a plurality of the both sides of stirring central siphon, a plurality of the drainage tube is connected respectively in a plurality of shunt drainage tube and shunt valve.
3. The steam-water heat recovery device of the boiler drain flash tank as claimed in claim 2, wherein the oxygen supply assembly comprises: a pair of oxygen supply valves, a pair of sealing valves, a pair of oxygen supply driving machines, a pair of oxygen supply driving bevel gears, a pair of oxygen supply transmission bevel gears, a pair of oxygen supply threaded pipes, a pair of oxygen supply threaded rods and a pair of oxygen supply plates;
the pair of oxygen supply driving machines are respectively arranged at the top ends of the pair of oxygen supply pressurizing boxes, the pair of oxygen supply driving bevel gears are respectively arranged at the driving ends of the pair of oxygen supply driving machines, the pair of oxygen supply threaded pipes are respectively inserted at the top ends of the pair of oxygen supply pressurizing boxes through bearings, the pair of oxygen supply transmission bevel gears are respectively arranged at the outer sides of the pair of oxygen supply threaded pipes, and it is a pair of oxygen suppliment transmission helical gear respectively with a pair of oxygen suppliment drive helical gear engagement, it is a pair of oxygen suppliment threaded rod activity cartridge respectively in a pair of the inboard of oxygen suppliment threaded pipe, it is a pair of the oxygen suppliment board is installed respectively in a pair of oxygen suppliment threaded rod, it is a pair of oxygen suppliment valve and a pair of sealed valve install respectively in a pair of the both sides of oxygen suppliment pressurization case, and a pair of oxygen suppliment valve connect respectively in the both sides of the mixed cylinder case of buggy.
4. The boiler drain flash tank steam-water heat recovery device of claim 3, wherein the sealing and feeding assembly comprises: the feeding device comprises a pair of feeding pipes, a pair of concave feeding blocks, a pair of feeding hydraulic push rods, a pair of feeding and discharging shafts, a pair of feeding and discharging plates and a pair of shielding plates;
the pair of feeding pipes are arranged on the heating bracket, the pair of feeding pipes are respectively provided with a feeding port and a discharging port, the pair of feeding ports are connected with the pulverized coal storage box, the pair of discharging ports are connected with the pulverized coal mixing cylindrical box, the pair of feeding hydraulic push rods are respectively arranged at the inner sides of the pair of feeding pipes, the pair of concave feeding blocks are respectively movably inserted at the inner sides of the pair of feeding pipes, the pair of concave feeding blocks are respectively connected to the pushing ends of the pair of feeding hydraulic push rods, discharging drainage openings are respectively formed in the inner sides of the pair of concave feeding blocks, the pair of feeding and discharging shafts are respectively inserted into the inner sides of the pair of discharging drainage openings through bearings, the pair of feeding and discharging plates are respectively mounted on the pair of feeding and discharging shafts, and the pair of baffle plates are respectively mounted on the pair of concave feeding blocks.
5. The steam-water heat recovery device for the boiler drain flash tank of claim 4, wherein a discharge recovery structure is arranged outside the boiler drain flash tank heater;
the unloading recovery structure comprises: the device comprises a discharging driving pipe, a plurality of discharging hydraulic push rods, a discharging L-shaped plate, an L-shaped discharging drainage pipe and a dust collecting box;
the utility model discloses a boiler drainage flash tank heater, including the drain flash tank heater, the drive tube cartridge of unloading in the hydrophobic flash tank heater bottom of boiler, a plurality of the hydraulic push rod that unloads even install in the inboard of the drive tube of unloading, the L template of unloading install in a plurality of the promotion of the hydraulic push rod of unloading is served, the drainage tube cartridge of unloading of L type in the hydrophobic flash tank heater of boiler, just the drainage tube of unloading of L type is just right the drive tube of unloading, the dust collecting box install in the hydrophobic flash tank heater's of boiler bottom lateral wall, just the dust collecting box connect in the drainage tube of unloading of L type.
6. The steam-water heat recovery device for the boiler hydrophobic flash tank of claim 5, wherein a drainage tube is arranged on the water storage tank, the drainage tube is connected to the boiler hydrophobic flash tank heater, and the drainage tube is inserted into the dust collection box.
7. A method for recovering steam-water heat of a boiler hydrophobic flash tank comprises the following operation steps: step S1, crushing and grinding; step S2, sealing and quantitatively feeding; step S3, mixing the coal powder and the oxygen; step S4, recovering heat of the waste gas; step S5, discharging dust; step S6, recovering dust heat;
step S1: pouring coal raw materials into a crushing box and a crusher;
step S2: quantitatively feeding the coal powder through a sealed feeding assembly;
step S3: pressurizing and mixing the coal powder and air to generate a rotating airflow;
step S4: guiding the burned smoke to the water reservoir and the inner side of the pulverized coal storage tank;
step S5: conveying the burnt powder at the bottom end of the boiler drain flash tank heater out of the boiler drain flash tank heater;
step S6: the water in the reservoir flows through the coal ash.
8. The method for recycling steam-water heat of the boiler hydrophobic flash tank as claimed in claim 7, wherein in step S2, coal powder is guided into the concave loading block, the concave loading block is pushed to the discharge opening by the loading hydraulic push rod, so that the loading and discharging plate on the concave loading block is not shielded by the loading pipe, and the loading and discharging plate rotates along the discharge shaft to guide the powder into the pulverized coal mixing cylindrical box.
9. The method for recovering steam-water heat of the boiler drain flash tank as claimed in claim 8, wherein the step S4 is to guide the smoke into a plurality of stirring shaft pipes, and preheat the water and coal through the high temperature stirring shaft pipes.
10. The method of claim 9, wherein in step S5, the heat in the coal ash is recovered.
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| CN114100388A (en) * | 2021-09-29 | 2022-03-01 | 华能太原东山燃机热电有限责任公司 | Gas-liquid mixing and pressurizing device for gas turbine |
| CN114832930A (en) * | 2022-05-25 | 2022-08-02 | 中建三局四川建筑装备有限公司 | Integrated crushing system for backfill materials |
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| CN113390098B (en) | 2024-06-07 |
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