CN114151776A - Energy-saving emission-reducing coal-fired steam boiler and control system thereof - Google Patents
Energy-saving emission-reducing coal-fired steam boiler and control system thereof Download PDFInfo
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- CN114151776A CN114151776A CN202111261240.3A CN202111261240A CN114151776A CN 114151776 A CN114151776 A CN 114151776A CN 202111261240 A CN202111261240 A CN 202111261240A CN 114151776 A CN114151776 A CN 114151776A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
- F22B31/08—Installation of heat-exchange apparatus or of means in boilers for heating air supplied for combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/42—Applications, arrangements, or dispositions of alarm or automatic safety devices
- F22B37/47—Applications, arrangements, or dispositions of alarm or automatic safety devices responsive to abnormal temperature, e.g. actuated by fusible plugs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/48—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers
- F22B37/54—De-sludging or blow-down devices
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- 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
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/16—Feed-water heaters, i.e. economisers or like preheaters with water tubes arranged otherwise than in the boiler furnace, fire tubes, or flue ways
- F22D1/18—Feed-water heaters, i.e. economisers or like preheaters with water tubes arranged otherwise than in the boiler furnace, fire tubes, or flue ways and heated indirectly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
- F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses an energy-saving and emission-reducing coal-fired steam boiler and a control system thereof, and the energy-saving and emission-reducing coal-fired steam boiler comprises a combustion furnace, wherein a steam box is arranged at the top of the combustion furnace, a smoke exhaust hopper is arranged in the middle of the steam box, a tail gas purification box is arranged at the top of the smoke exhaust hopper, a snake-shaped bent pipe is arranged in the tail gas purification box, one end of the snake-shaped bent pipe is connected with a first water inlet pipe, the coal-fired steam boiler can realize automatic feeding and automatic discharging, coal does not need to be manually put into the boiler, and burnt ash is very simple and convenient to clean, high in efficiency and high in speed, and the labor cost is reduced; the coal-fired steam boiler can recover and treat waste heat discharged by combustion, thereby reducing the loss of heat, achieving the aim of saving energy, converting the discharged heat into water and being convenient for people to use; this coal-fired steam boiler can automatic control boiler rate of heating, rather than being in the state of burning all the time, avoids a large amount of wasting of resources, can also carry out filtration treatment to exhaust flue gas in the time of moreover burning.
Description
Technical Field
The invention relates to the field of steam boilers, in particular to a coal-fired steam boiler capable of saving energy and reducing emission and a control system thereof.
Background
The boiler comprises a boiler and a furnace. The hot water or steam generated in the boiler can directly provide heat energy for industrial production and people life, and can also be converted into mechanical energy through a steam power device, or the mechanical energy is converted into electric energy through a generator. The boiler for supplying hot water is called a hot water boiler, is mainly used for life, and has a small amount of application in industrial production. The boiler for generating steam is called as a steam boiler, often called as a boiler for short, and is widely used for thermal power stations, ships, locomotives and industrial and mining enterprises. The application of the boiler is very wide, especially involve the coal-fired steam boiler, and the existing coal-fired steam boiler function is relatively single, there are many defects, 1, the existing coal-fired steam boiler can't realize automatic feeding and automatic blanking, the coal needs to be thrown into the boiler manually, the ash after burning still needs to be cleared up manually, the inefficiency, the speed is slow, increase the cost of labor; 2. the existing coal-fired steam boiler can not recover and treat the waste heat discharged by combustion, thereby reducing the loss of heat and achieving the aim of saving energy; 3. the existing coal-fired steam boiler can not automatically control the heating speed of the boiler, but always burns, so that a great deal of resource waste is caused, and therefore, the coal-fired steam boiler capable of saving energy and reducing emission and the control system thereof are provided.
Disclosure of Invention
The invention aims to provide an energy-saving and emission-reducing coal-fired steam boiler and a control system thereof aiming at the defects of the prior art so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a coal-fired steam boiler capable of saving energy and reducing emission comprises a combustion furnace, wherein a steam box is installed at the top of the combustion furnace, a smoke exhaust hopper is arranged in the middle of the steam box, a tail gas purification box is installed at the top of the smoke exhaust hopper, a serpentine elbow is installed inside the tail gas purification box, one end of the serpentine elbow is connected with a first water inlet pipe, a plurality of filter boxes are connected onto the serpentine elbow, a smoke exhaust pipe is installed at the top of the tail gas purification box, a spiral auger is arranged on the outer side of the smoke exhaust pipe, a heat exchange cylinder is arranged on the outer side of the spiral auger, a water drain pipe is installed on one side of the top of the heat exchange cylinder, a rain blocking cap is installed at the top of the smoke exhaust pipe, a steam exhaust pipe is installed on one side of the top of the steam box, an electromagnetic valve is installed on the other side of the top of the steam box, a second water inlet pipe is installed on the electromagnetic valve, and a liquid level sensor is installed inside the steam box, the novel energy-saving combustion furnace is characterized in that supporting legs are mounted at four corners of the bottom of the combustion furnace, hydraulic cylinders are mounted on the inner sides of the supporting legs, a sealing bottom plate is mounted at the top of each hydraulic cylinder, a feeding port is mounted on one side of the combustion furnace, a feeding conveyor belt is connected to the bottom of the feeding port, a conveyor belt motor is mounted at the bottom of the feeding conveyor belt, a hydraulic oil pump and a hydraulic oil tank are arranged at the bottom of the feeding port, a power switch is mounted on the combustion furnace, a fixing frame is mounted on one side of the top of the feeding port, a gear box is mounted at one end of the fixing frame, a driving motor is mounted on one side of the gear box, a bearing is mounted at one end of the fixing frame, a sealing door is connected onto the bearing, and a fan box is mounted on the other side of the steam box.
As a preferable technical scheme of the invention, the steam box is welded on the top of the combustion furnace, the smoke exhaust funnel is welded on the middle part of the steam box, and the tail gas purification box is fixed on the top of the steam box through a sealing gasket and a bolt.
As a preferred technical scheme of the invention, the smoke exhaust pipe is welded on the top of the tail gas purification box, the spiral auger is welded on the smoke exhaust pipe, the heat exchange cylinder is fixed on the top of the tail gas purification box through a sealing gasket and a bolt, and the filter box is installed inside the tail gas purification box through the bolt.
As a preferred technical scheme of the invention, one end of the snake-shaped bent pipe is connected with a cavity in the heat exchange cylinder in a welding mode, the first water inlet pipe is fixedly connected with the snake-shaped bent pipe through a connecting flange, and the drain pipe is fixedly connected with the top of the heat exchange cylinder through the connecting flange.
As a preferred technical scheme of the invention, the electromagnetic valve is installed on one side of the steam box through a bolt, the second water inlet pipe is fixedly connected with the electromagnetic valve through a bolt, the liquid level sensor is installed on the inner side wall of the steam box through a bolt, and the liquid level sensor is electrically connected with the electromagnetic valve through a controller.
As a preferable technical scheme of the invention, the fan box is arranged on the other side of the steam box through bolts, the steam box is connected with the feeding port through a connecting pipe, and the fixing frame is arranged on the side surface of the feeding port through bolts.
As a preferred technical scheme of the invention, the gear box is installed on one side of the fixing frame through bolts, the driving motor is installed on the gear box through bolts, connecting shafts are welded at two ends of one side of the sealing door, and the sealing door is respectively and fixedly connected with gears and bearings in the gear box through the connecting shafts.
As a preferred technical scheme of the invention, the feeding conveyor belt is arranged on a conveyor belt fixing frame through a conveyor belt roller, the conveyor belt motor is connected with the conveyor belt roller through a belt, the hydraulic cylinder is arranged on a base through a bolt, the hydraulic oil pump is respectively connected with the hydraulic oil tank and the hydraulic cylinder through a hydraulic oil pipe, and the sealing bottom plate is arranged on the top of the hydraulic cylinder through a bolt.
As a preferred technical scheme of the invention, the power switch is respectively and electrically connected with the liquid level sensor, the fan box, the hydraulic oil pump, the conveyer belt motor and the driving motor.
A temperature sensor is installed in a steam box, and the temperature sensor is electrically connected with a fan box, a conveyor belt motor and a driving motor through a controller; the specific operation method comprises the following steps:
s1: the liquid level sensor senses the water level in the steam box, and when the water level is lowered, the electromagnetic valve is automatically opened to enable the second water inlet pipe to feed water into the steam box, so that dry burning is prevented;
s2: the temperature sensor can sense the water temperature in the water tank, when the temperature is too low, the fan is controlled by the controller to convey air into the combustion furnace, the driving motor can work to open the sealing door, and the conveying belt can work to convey coal fuel;
s3: when the temperature reaches the set value, the feeding is automatically stopped.
The invention has the beneficial effects that:
1. the coal-fired steam boiler can realize automatic feeding and automatic discharging, coal does not need to be manually put into the boiler, and burnt ash is very simple and convenient to clean, high in efficiency and high in speed, so that the labor cost is reduced;
2. the coal-fired steam boiler can recover and treat waste heat discharged by combustion, thereby reducing the loss of heat, achieving the aim of saving energy, converting the discharged heat into water and being convenient for people to use;
3. this coal-fired steam boiler can automatic control boiler rate of heating, rather than being in the state of burning all the time, avoids a large amount of wasting of resources, can also carry out filtration treatment to exhaust flue gas in the time of moreover burning, reaches environmental protection requirement and discharges.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the fixing frame of the present invention.
In the figure: the device comprises a combustion furnace 1, a steam box 2, a smoke exhaust funnel 3, a tail gas purification box 4, a serpentine elbow 5, a filter box 6, a heat exchange cylinder 7, a spiral auger 8, a smoke exhaust pipe 9, a rain shield cap 10, a water discharge pipe 11, a first water inlet pipe 12, a steam discharge pipe 13, a liquid level sensor 14, an electromagnetic valve 15, a second water inlet pipe 16, a fan box 17, a power switch 18, support legs 19, a hydraulic cylinder 20, a sealing bottom plate 21, a hydraulic oil pump 22, a hydraulic oil tank 23, a feeding conveyor belt 24, a motor 25, a feeding port 26, a sealing door 27, a motor 28, a gear box 29, a fixing frame 30 and a bearing 31.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention more readily understood by those skilled in the art, and thus will more clearly and distinctly define the scope of the invention.
Example (b): referring to fig. 1-2, the present invention provides a technical solution: a coal-fired steam boiler with energy saving and emission reduction comprises a combustion furnace 1, a steam box 2 is installed at the top of the combustion furnace 1, a smoke exhaust funnel 3 is arranged in the middle of the steam box 2, a tail gas purification box 4 is installed at the top of the smoke exhaust funnel 3, a serpentine elbow 5 is installed inside the tail gas purification box 4, one end of the serpentine elbow 5 is connected with a first water inlet pipe 12, a plurality of filter boxes 6 are connected onto the serpentine elbow 5, a smoke exhaust pipe 9 is installed at the top of the tail gas purification box 4, a spiral auger 8 is arranged outside the smoke exhaust pipe 9, a heat exchange cylinder 7 is arranged outside the spiral auger 8, a water outlet pipe 11 is installed on one side of the top of the heat exchange cylinder 7, a rain blocking cap 10 is installed at the top of the smoke exhaust pipe 9, a steam exhaust pipe 13 is installed on one side of the top of the steam box 2, an electromagnetic valve 15 is installed on the other side of the top of the steam box 2, a second water inlet pipe 16 is installed on the electromagnetic valve 15, and a liquid level sensor 14 is installed inside the steam box 2, supporting legs 19 are all installed to four corners in the bottom of burning furnace 1, pneumatic cylinder 20 is installed to supporting legs 19's inboard, sealed bottom plate 21 is installed at pneumatic cylinder 20's top, it installs pan feeding mouth 26 to burn one side of burning furnace 1, the bottom of pan feeding mouth 26 is connected with material loading conveyer belt 24, conveyer belt motor 25 is installed to material loading conveyer belt 24's bottom, the bottom of pan feeding mouth 26 is equipped with hydraulic oil pump 22 and hydraulic oil tank 23, install switch 18 on burning furnace 1, mount 30 is installed to top one side of pan feeding mouth 26, gear box 29 is installed to the one end of mount 30, driving motor 28 is installed to one side of gear box 29, bearing 31 is installed to the inside one end of mount 30, be connected with sealing door 27 on the bearing 31, fan box 17 is installed to the opposite side of steam box 2.
The pipe 9 of discharging fume welds on the top of tail gas clean-up box 4, and the welding of spiral auger 8 is on the pipe 9 of discharging fume, and heat-transfer section of thick bamboo 7 passes through sealed pad and bolt fastening on the top of tail gas clean-up box 4, and rose box 6 passes through the bolt and installs the inside at tail gas clean-up box 4.
One end of the S-shaped bent pipe 5 is welded with a cavity in the heat exchange cylinder 7, the first water inlet pipe 12 is fixedly connected with the S-shaped bent pipe 5 through a connecting flange, and the drain pipe 11 is fixedly connected with the top of the heat exchange cylinder 7 through a connecting flange.
The fan box 17 is installed on the other side of the steam box 2 through bolts, the steam box 2 is connected with the feeding port 26 through a connecting pipe, and the fixing frame 30 is installed on the side face of the feeding port 26 through bolts.
The gear box 29 is installed on one side of the fixed frame 30 through bolts, the driving motor 28 is installed on the gear box 29 through bolts, connecting shafts are welded at two ends of one side of the sealing door 27, and the sealing door 27 is fixedly connected with gears in the gear box 29 and a bearing 31 through the connecting shafts respectively.
The feeding conveyor belt 24 is installed on the conveyor belt fixing frame through a conveyor belt roller, the conveyor belt motor 25 is connected with the conveyor belt roller through a belt, the hydraulic cylinder 20 is installed on the base through a bolt, the hydraulic oil pump 22 is respectively connected with the hydraulic oil tank 23 and the hydraulic cylinder 20 through a hydraulic oil pipe, and the sealing bottom plate 21 is installed on the top of the hydraulic cylinder 20 through a bolt.
The power switch 18 is electrically connected with the liquid level sensor 14, the fan box 17, the hydraulic oil pump 22, the conveyor belt motor 25 and the driving motor 28 respectively.
A temperature sensor is arranged in a steam box 2 and is electrically connected with a fan box 17, a conveyor belt motor 25 and a driving motor 28 through a controller; the specific operation method comprises the following steps:
s1: the liquid level sensor senses the water level in the steam box, and when the water level is lowered, the electromagnetic valve is automatically opened to enable the second water inlet pipe to feed water into the steam box, so that dry burning is prevented;
s2: the temperature sensor can sense the water temperature in the water tank, when the temperature is too low, the fan is controlled by the controller to convey air into the combustion furnace, the driving motor can work to open the sealing door, and the conveying belt can work to convey coal fuel;
s3: when the temperature reaches the set value, the feeding is automatically stopped.
The working principle is as follows: a coal-fired steam boiler with energy saving and emission reduction and a control system thereof comprise a combustion furnace 1 and a steam box 2, when in use, the power supply of a driving motor 28 and a conveyor belt motor 25 is respectively connected through a power switch 18, the driving motor 28 is electrified to work to drive a gear in a gear box 29 to rotate, so as to drive a connecting shaft on a sealing door 27 to rotate around a bearing 31, so as to open the sealing door 27, the conveyor belt motor 25 is electrified to work to drive a feeding conveyor belt 24 to be electrified to work, so that coal fuel is conveyed into the combustion furnace 1 to be combusted, meanwhile, a fan box 17 is electrified to work, so as to suck outside air into the combustion furnace 1, provide more oxygen into the combustion furnace 1, then heat the steam box 2 through the combustion furnace 1 and then the fire, a liquid level sensor 14 in the steam box 2 can sense the water level in the steam box 2, when the water level is too low, the electromagnetic valve 15 is controlled to be opened through the controller, tap water enters the steam box 2 through the second water inlet pipe 16, steam generated in the steam box 2 is conveyed out through the steam exhaust pipe 13, smoke generated after combustion of the combustion furnace 1 enters the tail gas purification box 4 through the smoke exhaust hopper 3, the tail gas is purified through the plurality of filter boxes 6 on the tail gas purification box 4 and is contacted with the serpentine bent pipe 5, circulating water is arranged in the serpentine bent pipe 5, so that heat on the serpentine bent pipe 5 is taken away, heat is prevented from being exhausted to the atmosphere, waste of heat energy resources is avoided, the heat exchange cylinders 7 are arranged on the smoke exhaust pipe 9 to take away heat on the smoke exhaust pipe 9, and the spiral auger 8 is adopted to ensure that water slowly enters the water drain pipe 11 through the spiral auger 8, the spiral auger 8 is utilized to ensure that the water is fully contacted with the smoke exhaust pipe 9, the efficiency of heat conversion is improved, after the burning is accomplished, when needing to clear up the dust in burning furnace 1, then through hydraulic oil pump 22 with hydraulic cylinder 20 in hydraulic tank 23 is sucked, thereby let sealed bottom plate 21 descend slowly, and the ash after the coal burning all can be piled up on sealed bottom plate 21, only need to clear up the sealed bottom plate 21 after the decline can, this equipment has still adopted one set of control system, utilize temperature sensor real-time supervision temperature in the water tank, when the temperature drops to the value of settlement, then can be through opening fan case 17, automatically, open sealing door 27, and the mode of 24 automatic transport coals through the material loading conveyer belt, carry out oxygenation reinforced to burning furnace 1, the fast combustion efficiency, need not let burning furnace 1 be in the state of burning all the time, reach energy-conserving purpose.
The coal-fired steam boiler can realize automatic feeding and automatic discharging, coal does not need to be manually put into the boiler, and burnt ash is very simple and convenient to clean, high in efficiency and high in speed, so that the labor cost is reduced; the coal-fired steam boiler can recover and treat waste heat discharged by combustion, thereby reducing the loss of heat, achieving the aim of saving energy, converting the discharged heat into water and being convenient for people to use; this coal-fired steam boiler can automatic control boiler rate of heating, rather than being in the state of burning all the time, avoids a large amount of wasting of resources, can also carry out filtration treatment to exhaust flue gas in the time of moreover burning, reaches environmental protection requirement and discharges.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (10)
1. A coal-fired steam boiler capable of saving energy and reducing emission comprises a combustion furnace (1), and is characterized in that: the energy-saving combustion furnace is characterized in that a steam box (2) is installed at the top of a combustion furnace (1), a smoke exhaust funnel (3) is arranged in the middle of the steam box (2), a tail gas purification box (4) is installed at the top of the smoke exhaust funnel (3), a serpentine bent pipe (5) is installed inside the tail gas purification box (4), one end of the serpentine bent pipe (5) is connected with a first water inlet pipe (12), a plurality of filter boxes (6) are connected onto the serpentine bent pipe (5), a smoke exhaust pipe (9) is installed at the top of the tail gas purification box (4), a spiral auger (8) is arranged on the outer side of the smoke exhaust pipe (9), a heat exchange barrel (7) is arranged on the outer side of the spiral auger (8), a drain pipe (11) is installed on one side of the top of the heat exchange barrel (7), a rain blocking cap (10) is installed on the top of the smoke exhaust pipe (9), and a steam exhaust pipe (13) is installed on one side of the top of the steam box (2), an electromagnetic valve (15) is installed on the other side of the top of the steam box (2), a second water inlet pipe (16) is installed on the electromagnetic valve (15), a liquid level sensor (14) is installed inside the steam box (2), supporting legs (19) are installed at four corners of the bottom of the combustion furnace (1), a hydraulic cylinder (20) is installed on the inner side of each supporting leg (19), a sealing bottom plate (21) is installed at the top of each hydraulic cylinder (20), a feeding port (26) is installed on one side of the combustion furnace (1), a feeding conveyor belt (24) is connected to the bottom of each feeding port (26), a conveyor belt motor (25) is installed at the bottom of each feeding conveyor belt (24), a hydraulic oil pump (22) and a hydraulic oil tank (23) are arranged at the bottom of each feeding port (26), a power switch (18) is installed on the combustion furnace (1), and a fixing frame (30) is installed on one side of the top of each feeding port (26), gear box (29) are installed to the one end of mount (30), driving motor (28) are installed to one side of gear box (29), bearing (31) are installed to the inside one end of mount (30), be connected with sealing door (27) on bearing (31), fan case (17) are installed to the opposite side of steam chest (2).
2. The coal-fired steam boiler of claim 1, wherein: the steam box (2) is welded on the top of the combustion furnace (1), the smoke exhaust funnel (3) is welded on the middle part of the steam box (2), and the tail gas purification box (4) is fixed on the top of the steam box (2) through a sealing gasket and bolts.
3. The coal-fired steam boiler of claim 1, wherein: the utility model discloses a tail gas purification case, including exhaust gas purification case (4), pipe (9) of discharging fume welds on the top of tail gas purification case (4), spiral auger (8) welding is on pipe (9) of discharging fume, heat transfer cylinder (7) are fixed on the top of tail gas purification case (4) through sealed pad and bolt, rose box (6) are installed in the inside of tail gas purification case (4) through the bolt.
4. The coal-fired steam boiler of claim 1, wherein: one end of the serpentine elbow (5) is welded with the cavity in the heat exchange cylinder (7), the first water inlet pipe (12) is fixedly connected with the serpentine elbow (5) through a connecting flange, and the drain pipe (11) is fixedly connected with the top of the heat exchange cylinder (7) through the connecting flange.
5. The coal-fired steam boiler of claim 1, wherein: solenoid valve (15) pass through the bolt and install on one side of steam chest (2), second inlet tube (16) pass through bolt fastening with solenoid valve (15) and link to each other, level sensor (14) pass through the bolt and install on the inside wall of steam chest (2), level sensor (14) pass through controller and solenoid valve (15) electric connection.
6. The coal-fired steam boiler of claim 1, wherein: the steam box (2) is connected with the feeding port (26) through a connecting pipe, and the fixing frame (30) is installed on the side face of the feeding port (26) through bolts.
7. The coal-fired steam boiler of claim 1, wherein: the gear box (29) is installed on one side of the fixing frame (30) through bolts, the driving motor (28) is installed on the gear box (29) through bolts, connecting shafts are welded at two ends of one side of the sealing door (27), and the sealing door (27) is fixedly connected with gears and bearings (31) in the gear box (29) through the connecting shafts respectively.
8. The coal-fired steam boiler of claim 1, wherein: material loading conveyer belt (24) are rolled the roller through the conveyer belt and are installed on the conveyer belt mount, conveyer belt motor (25) are rolled the roller through belt and conveyer belt and are linked to each other, pneumatic cylinder (20) are installed on the base through the bolt, hydraulic oil pump (22) link to each other with hydraulic tank (23) and pneumatic cylinder (20) respectively through hydraulic pressure oil pipe, seal bottom plate (21) are installed on the top of pneumatic cylinder (20) through the bolt.
9. The coal-fired steam boiler of claim 1, wherein: the power switch (18) is electrically connected with the liquid level sensor (14), the fan box (17), the hydraulic oil pump (22), the conveyor belt motor (25) and the driving motor (28) respectively.
10. The control system of a coal-fired steam boiler for energy conservation and emission reduction according to claim 1, wherein: a temperature sensor is arranged in the steam box (2), and the temperature sensor is electrically connected with the fan box (17), the conveyor belt motor (25) and the driving motor (28) through a controller; the specific operation method comprises the following steps:
s1: the liquid level sensor senses the water level in the steam box, and when the water level is lowered, the electromagnetic valve is automatically opened to enable the second water inlet pipe to feed water into the steam box, so that dry burning is prevented;
s2: the temperature sensor can sense the water temperature in the water tank, when the temperature is too low, the fan is controlled by the controller to convey air into the combustion furnace, the driving motor can work to open the sealing door, and the conveying belt can work to convey coal fuel;
s3: when the temperature reaches the set value, the feeding is automatically stopped.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111261240.3A CN114151776A (en) | 2021-10-28 | 2021-10-28 | Energy-saving emission-reducing coal-fired steam boiler and control system thereof |
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| CN202111261240.3A CN114151776A (en) | 2021-10-28 | 2021-10-28 | Energy-saving emission-reducing coal-fired steam boiler and control system thereof |
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| CN213599342U (en) * | 2020-10-09 | 2021-07-02 | 德清创赢机械科技有限公司 | Combustion boiler convenient to dismantle pipe of discharging fume |
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| CN112682816A (en) * | 2020-12-29 | 2021-04-20 | 连云港虹洋热电有限公司 | Coal-fired boiler tail gas membrane filtration oxygen enrichment recycling device and using method |
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Application publication date: 20220308 |