Heat energy circulating air supply device for coal boiler

Abstract

The invention discloses a heat energy circulation air supply device for a coal boiler, and particularly relates to the technical field of coal boilers, the heat energy circulation air supply device comprises a vertical boiler, the upper side of the left end of the vertical boiler is fixedly connected with a heat energy circulation mechanism, and the right side of the vertical boiler and the heat energy circulation mechanism are jointly provided with a steam mechanism; a heating set is arranged on the front portion of the lower side of the left end of the vertical boiler, and the lower portion of the rear side of the heating set is fixedly connected with a smoke exhaust set through an air pipe. Through cooperative use of the heat absorbing plate, the U-shaped water pipe component, the steam pipe component, the water tank, the heat circulation component and the heat energy component, the device has two heat circulation recovery modes for high-temperature flue gas heat, it is guaranteed that the recovered heat is not lost, meanwhile, the steam generation rate is increased, and the carbon combustion amount is saved; and through cooperative use of the second shell, the recirculation fan, the air blower and the heating set, part of high-temperature flue gas flows back into the vertical boiler, the air supply stability of the device is improved, and waste heat of the high-temperature flue gas is fully utilized.

Description

Technical Field

[0001] The invention relates to the technical field of coal boilers, and in particular to a heat energy circulation air supply device for coal boilers. Background Art

[0002] As a traditional energy combustion equipment, coal boilers play an important role in industrial production and are widely used in electricity, steel, chemical and other fields. The operating efficiency and thermal energy conversion efficiency of coal boilers have an important impact on energy conservation, emission reduction and reducing operating costs. In order to improve the thermal energy utilization efficiency and operating stability of coal boilers, the air supply device occupies an important position in the boiler system. The air supply device supports coal combustion by providing sufficient air, thereby ensuring the smooth progress of the combustion process inside the boiler.

[0003] However, the air supply system of traditional coal boilers has certain shortcomings, especially in terms of heat recovery and circulation, the performance is relatively limited. With the continuous improvement of energy conservation and environmental protection requirements, the existing air supply system has problems such as inability to fully utilize boiler thermal energy, unstable air volume, and low energy efficiency. Therefore, a heat energy circulation air supply device for coal boilers is needed. Summary of the invention

[0004] The main purpose of the present invention is to provide a heat energy circulation air supply device for a coal boiler, which can effectively solve the problems of inability to fully utilize the boiler heat energy, unstable air volume, low energy efficiency, etc.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A heat energy circulation air supply device for a coal boiler comprises a vertical boiler, a heat energy circulation mechanism is fixedly connected to the upper left end of the vertical boiler, a steam mechanism is provided together with the heat energy circulation mechanism on the right side of the vertical boiler, a recirculation fan is provided together with the heat energy circulation mechanism on the lower left end of the vertical boiler, a heat energy component is provided on the left side of the heat energy circulation mechanism, a transmission component 2 is provided on the upper end of the heat energy component, a heating group is provided at the front of the lower left end of the vertical boiler, a blower is provided on the left side of the heating group, a water feed pump is provided at the right lower side of the heat energy circulation mechanism, the lower front side of the heat energy circulation mechanism is fixedly connected to the rear side of the heating group, and the lower rear side of the heating group is fixedly connected to a smoke exhaust group via an air pipe.

[0007] Preferably, the heating group includes a shell 1, an air outlet pipe is fixedly connected to the upper right end of the shell 1, an air inlet pipe is fixedly connected to the upper left end of the shell 1, and a smoke exhaust and heat dissipation curved pipe is fixedly connected to the inner cavity of the shell 1.

[0008] Preferably, the steam mechanism includes a heat absorbing plate, an outer surface of the heat absorbing plate is fixedly connected to the right wall of the inner cavity of the vertical boiler, a U-shaped water pipe component is fittedly connected to the left side of the outer surface of the heat absorbing plate, the lower side of the outer surface of the U-shaped water pipe component penetrates the right wall of the inner cavity of the vertical boiler, the upper end of the U-shaped water pipe component is fixedly connected to a water tank, the upper side of the outer surface of the water tank is fixedly connected to a steam pipe component, the left end of the steam pipe component penetrates the thermal energy circulation mechanism and is fixedly connected to an exhaust group, a water inlet pipe component is fixedly connected to the middle left side of the outer surface of the water tank, the end of the water inlet pipe component away from the water tank is fixedly connected to a curved pipe component, and the input end of the curved pipe component is fixedly connected to a water supply pipe.

[0009] Preferably, the exhaust group includes a steam collecting pipe, the left end of the steam collecting pipe is fixedly connected to a bent pipe, the inner cavity of the bent pipe is rotatably connected to a fan blade, the front end of the fan blade passes through the inner cavity of the bent pipe and is fixedly connected to a transmission wheel, and the lower end of the bent pipe is fixedly connected to an L-shaped exhaust pipe.

[0010] Preferably, the water supply pipe input end is fixedly connected to the water supply pump output end, the right end of the steam collecting pipe is fixedly connected to the left end of the steam pipe component, and the transmission wheel 1 is connected to the rear side of the transmission component 2 by winding with a belt.

[0011] Preferably, the thermal energy circulation mechanism includes a shell 2, a shell 3 is fixedly connected to the middle part of the front end of the shell 2, an L-shaped bracket is fixedly connected to the front side of the left end of the shell 2, a transmission component 1 is rotatably connected to the inner cavity of the shell 3 and the inner cavity of the L-shaped bracket, a shell 4 is fixedly connected to the lower end of the shell 2, a thermal circulation component is fixedly connected to the lower side of the inner cavity of the shell 2, a cleaning group is provided in the inner cavity of the shell 2, the front side of the cleaning group is meshed with the transmission component 1, a mounting hole 1 is opened on the upper side of the left end of the shell 2, and a discharge pipe is fixedly connected to the middle part of the rear end of the shell 2.

[0012] Preferably, the input end of the recirculation fan is fixedly connected to the right lower side of the outer surface of the second shell, the water inlet pipe component is sleeved in the inner cavity of the second shell and passes through the cleaning group, the inner cavity of the fourth shell is fixedly connected to the outer surface of the curved pipe component, the output end of the water supply pipe passes through the fourth shell and is fixedly connected to the input end of the curved pipe component, the left end of the steam pipe component passes through the inner cavity of the second shell and the inner cavity of the first mounting hole in sequence, and the steam pipe component is located on the upper side of the water inlet pipe component, the input and output ends of the heat cycle component both pass through the left wall of the inner cavity of the second shell and are fixedly connected to the thermal energy component, the input end of the smoke exhaust heat dissipation curved pipe passes through the inner cavity of the first shell and is fixedly connected to the output end of the fourth shell, and the right end of the second shell is fixedly connected to the upper side of the left end of the vertical boiler.

[0013] Preferably, the cleaning group includes two arc plates arranged inclined forward and backward, the lower ends of the two arc plates are jointly fixedly connected to a metal filter plate, the two arc plates are provided with mounting grooves on the opposite lower sides, the inner cavities of the two mounting grooves are rotatably connected to reciprocating screws, the front ends of the two reciprocating screws pass through the second inner cavity of the shell and are fixedly connected to a bevel gear one, the outer surfaces of the two bevel gears one are jointly meshed with a transmission component one, the outer surfaces of the two reciprocating screws are jointly meshed with a cleaning scraper, the outer surfaces of the cleaning scraper are respectively slidably connected to the inner cavities of the two mounting grooves on the left and right sides, the two arc plates are provided with sliding grooves on the opposite lower sides, the inner cavities of the two sliding grooves are provided with sliding plates, a mounting hole two is opened in the middle of the upper end of the left arc plate, the outer surface of the water inlet pipe component passes through the second inner cavity of the mounting hole, and the ends of the two arc plates away from each other are respectively fixedly connected to the left and right walls of the second inner cavity of the shell.

[0014] Preferably, the smoke exhaust group includes a shell five, the input end of the shell five is fixedly connected to the output end of the smoke exhaust heat dissipation curved pipe through a smoke pipe, a feed pipe is fixedly connected to the front upper part of the left end of the shell five, two partition plates are fixedly connected to the middle part of the inner cavity of the shell five, a discharge plate is fixedly connected to the lower side of the rear end of the shell five, a limiting groove is provided on the front side of the upper end of the discharge plate, and a clamping plate is slidably connected to the inner cavity of the limiting groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention not only enables the device to have two ways of recycling the heat of high-temperature flue gas through the coordinated use of the heat absorbing plate, the U-shaped water pipe component, the steam pipe component, the water tank, the heat circulation component and the thermal energy component, but also performs them simultaneously to improve the heat energy recovery efficiency. In addition, the high-temperature steam in the steam pipe component and the cold water in the curved pipe component and the water inlet pipe component can be heated by the high-temperature flue gas through the coordinated use of the outer shell 2 and the outer shell 4, thereby ensuring that the recovered heat is not lost while increasing the steam generation rate and saving the amount of charcoal combustion. In addition, through the coordinated use of the outer shell 2, the recirculation fan, the blower and the heating group, part of the high-temperature flue gas is returned to the vertical boiler, and the incoming fresh cold air is preheated, which not only improves the stability of the air supply of the device, but also makes full use of the waste heat of the high-temperature flue gas to achieve heat recycling.

[0017] 2. In the implementation process of the present invention, through the coordinated use of the exhaust group, the transmission component 2, the transmission component 1 and the belt, the cleaning group filters and automatically removes the particles and soot in the high-temperature flue gas to avoid adhesion to the thermal cycle components, thereby extending the service life of the thermal cycle components. At the same time, the interlayer plate and the activated carbon are used to adsorb toxic and harmful gases in the flue gas, thereby achieving the purpose of protecting the environment. The coordinated use of the feed pipe, the limit groove and the card plate facilitates the replacement of the activated carbon. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of another viewing angle of the overall structure of the present invention;

[0020] Figure 3 It is a schematic diagram of the heating group of the present invention;

[0021] Figure 4 It is a schematic diagram of the steam mechanism of the present invention;

[0022] Figure 5 For the present invention Figure 4 The enlarged schematic diagram at A in the middle;

[0023] Figure 6 It is a schematic diagram of the exhaust group of the present invention;

[0024] Figure 7 It is a schematic diagram of the heat energy circulation mechanism of the present invention;

[0025] Figure 8 It is a schematic diagram of the heat energy circulation mechanism of the present invention from another perspective;

[0026] Fig. 9 It is a schematic diagram of the cleaning group of the present invention;

[0027] Fig.10 For the present invention Fig. 9 The enlarged schematic diagram of point B in the middle;

[0028] Fig.11 It is a schematic diagram of the smoke exhaust group of the present invention.

[0029] In the figure: 1, exhaust group; 11, shell five; 12, feed pipe; 13, interlayer plate; 14, discharge plate; 15, limit groove; 16, clamping plate; 2, blower; 3, heating group; 31, shell one; 32, air outlet pipe; 33, exhaust heat dissipation curved pipe; 34, air inlet pipe; 4, feed water pump; 5, recirculation fan; 6, vertical boiler; 7, steam mechanism; 71, heat absorbing plate; 72, U-shaped water pipe component; 73, steam pipe component; 74, exhaust group; 741, steam collecting pipe; 742, elbow; 743, fan blade; 744, transmission wheel one; 745, L-shaped exhaust pipe; 75, inlet Water pipe components; 76, curved pipe components; 77, water tank; 78, water supply pipe; 8, thermal energy circulation mechanism; 81, shell two; 82, shell three; 83, mounting hole one; 84, cleaning group; 841, arc plate; 842, metal filter plate; 843, bevel gear one; 844, mounting hole two; 845, cleaning scraper; 846, mounting groove; 847, reciprocating screw; 848, sliding groove; 849, sliding plate; 85, L-shaped bracket; 86, transmission component one; 87, thermal circulation component; 88, shell four; 89, discharge pipe; 9, transmission component two; 91, thermal energy component. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0031] Embodiment 1, as Figure 1-2 As shown, a heat energy circulation air supply device for a coal boiler includes a vertical boiler 6, a heat energy circulation mechanism 8 is fixedly connected to the upper left end of the vertical boiler 6, a steam mechanism 7 is provided together with the heat energy circulation mechanism 8 on the right side of the vertical boiler 6, a recirculation fan 5 is provided together with the heat energy circulation mechanism 8 on the lower left end of the vertical boiler 6, a heat energy component 91 is provided on the left side of the heat energy circulation mechanism 8, a transmission component 9 is provided on the upper end of the heat energy component 91, a heating group 3 is provided at the front of the lower left end of the vertical boiler 6, a blower 2 is provided on the left side of the heating group 3, a water feed pump 4 is provided at the lower right side of the heat energy circulation mechanism 8, the lower front side of the heat energy circulation mechanism 8 is fixedly connected to the rear side of the heating group 3, and the lower rear side of the heating group 3 is fixedly connected to the exhaust group 1 through an air pipe.

[0032] It should be noted that the specific installation method and circuit connection method and control method of the blower 2, water supply pump 4 and recirculation fan 5 in the present invention are all conventional designs, which are conventional design means of designers, and the transmission component 2 9 is composed of a long rod and a bevel gear compatible with the bevel gear 843 and a pulley and a support compatible with the transmission wheel 744, and the long rod can rotate on the support. The thermal energy component 91 is used in conjunction with the thermal circulation component 87. Water evaporates after being heated and transfers heat to the cooling water of the thermal energy component 91. After the water evaporates, it condenses into liquid in the condensation section of the thermal energy component 91 and flows back to the thermal circulation component 87 to continue circulating, thereby realizing thermal circulation and being used to recover and convert the thermal energy of the thermal circulation component 87.

[0033] First, the outside cold air is blown into the heating group 3 through the blower 2 and enters the vertical boiler 6 through the heating group 3. At the same time, the water source is provided to the steam mechanism 7 through the water supply pump 4. A large amount of high-temperature flue gas is generated by the combustion of the vertical boiler 6. A large amount of flue gas rises upward in the inner cavity of the vertical boiler 6, and then enters the thermal energy circulation mechanism 8. The thermal energy circulation mechanism 8 removes impurities such as particles and soot in the high-temperature flue gas. The filtered high-temperature flue gas enters the heating group 3 from the lower side of the thermal energy circulation mechanism 8. The temperature of the high-temperature flue gas drops, and the high-temperature flue gas with the cooling in cooperation with the air pipe enters the exhaust group 1. The toxic and harmful gases in the flue gas are filtered through the exhaust group 1 and finally discharged from the upper side of the exhaust group 1. In addition, in the process of rising and discharging of the high-temperature flue gas, the cold water in the steam mechanism 7 will be continuously heated first, so that the cold water boils to produce high-temperature steam, and is discharged from the left side of the steam mechanism 7 into the external steam heat recovery device for use, for example, agricultural greenhouse heating, agricultural planting temperature Indoor greenhouses need to be heated in winter to ensure the normal growth of plants. Hot air can be more effectively transported into the greenhouse to provide a stable warming effect. The heat energy circulation mechanism 8 will absorb the waste heat of the high-temperature flue gas while filtering the high-temperature flue gas, and transfer the heat to the cooling water of the thermal energy component 91 to recover the heat. The recovered heat can be used for other process or domestic water heating, etc., to achieve energy reuse. Secondly, the high-temperature flue gas enters the heating group 3, and the outside cold air enters the heating group 3 through the blower 2 and then enters the vertical boiler 6 after heating. Through the recirculation fan 5, part of the high-temperature flue gas filtered by the heat energy circulation mechanism 8 can be returned to the vertical boiler 6 again. After the high-temperature flue gas is reintroduced into the inner cavity of the vertical boiler 6, it will be mixed with fresh air and coal to increase the temperature of the entire combustion area. The high temperature environment is conducive to accelerating the combustion rate of coal, making the combustion more complete, thereby improving the combustion efficiency, and the overall heat recovery efficiency is improved and the air supply is more stable.

[0034] In order to achieve the purpose of air supply and subsequent heating of the air supply, such as Figure 3As shown, the heating group 3 includes a shell 31, an air outlet pipe 32 is fixedly connected to the upper right end of the shell 31, an air inlet pipe 34 is fixedly connected to the upper left end of the shell 31, and a smoke exhaust and heat dissipation curved pipe 33 is fixedly connected to the inner cavity of the shell 31.

[0035] First, before the high-temperature flue gas generated by the combustion of the vertical boiler 6 enters the exhaust heat dissipation curved pipe 33, the blower 2 is started to allow fresh cold air from the outside to enter the outer shell 31 through the air inlet pipe 34, and then enter the vertical boiler 6 through the air outlet pipe 32, so as to provide fresh cold air for combustion inside the vertical boiler 6. In addition, when the high-temperature flue gas generated by the combustion of the vertical boiler 6 enters the exhaust heat dissipation curved pipe 33, and the exhaust heat dissipation curved pipe 33 is made of a material with good thermal conductivity, it is convenient to transfer the heat of the high-temperature flue gas inside the exhaust heat dissipation curved pipe 33 to the fresh air in the inner cavity of the outer shell 31 for heating, and the hot air is conducive to the accelerated combustion of coal and improves the combustion efficiency.

[0036] Embodiment 2: Based on Embodiment 1, this embodiment realizes heat recovery of high temperature flue gas. Figure 4 and Figure 5 As shown, the steam mechanism 7 includes a heat absorbing plate 71, the outer surface of the heat absorbing plate 71 is fixedly connected to the right wall of the inner cavity of the vertical boiler 6, a U-shaped water pipe component 72 is fitted and connected to the left side of the outer surface of the heat absorbing plate 71, the lower side of the outer surface of the U-shaped water pipe component 72 penetrates the right wall of the inner cavity of the vertical boiler 6, the upper end of the U-shaped water pipe component 72 is fixedly connected to a water tank 77, the upper side of the outer surface of the water tank 77 is fixedly connected to a steam pipe component 73, the left end of the steam pipe component 73 penetrates the thermal energy circulation mechanism 8 and is fixedly connected to an exhaust group 74, a water inlet pipe component 75 is fixedly connected to the middle of the left side of the outer surface of the water tank 77, the end of the water inlet pipe component 75 away from the water tank 77 is fixedly connected to a curved pipe component 76, and the input end of the curved pipe component 76 is fixedly connected to a water supply pipe 78.

[0037] First of all, it should be explained that the curved pipe component 76 is composed of a fixed shell and multiple layers of connected curved water pipes. When the water supply pump 4 is started, external cold water enters the curved pipe component 76 through the water supply pipe 78, and then enters the water inlet pipe component 75, enters the inner cavity of the water tank 77 from the water inlet pipe component 75, and enters the inner cavity of the U-shaped water pipe component 72 through the inner cavity of the water tank 77. When the high-temperature flue gas generated by the internal combustion of the vertical boiler 6 is in the middle and lower layers of the inner cavity of the vertical boiler 6, the heat is transferred to the cold water in the inner cavity of the U-shaped water pipe component 72 through the heat absorbing plate 71, so that the cold water is heated, the hot water rises and enters the water tank 77, and the cold water goes down and enters the U-shaped water pipe component 72, and the heating cycle is continued until the water in the water tank 77 also boils, generating high-temperature steam, and enters To the steam pipe component 73, and enter the exhaust group 74 through the steam pipe component 73. When the high-temperature flue gas rises to the upper side of the inner cavity of the vertical boiler 6 and the inside of the thermal energy circulation mechanism 8, the high-temperature flue gas will heat the steam pipe component 73, the water inlet pipe component 75 and the curved pipe component 76 at the same time. The steam pipe component 73 is heated so that the recovered heat is not lost, and the waste heat of the high-temperature flue gas is further recovered. At this time, the cold water in the curved pipe component 76 and the water inlet pipe component 75 absorbs heat, and the temperature rises and enters the water tank 77, which will accelerate the boiling of the water in the water tank 77, increase the steam generation rate, save the amount of charcoal combustion, and the steam entering the steam pipe component 73 is heated again by the high-temperature flue gas and enters the exhaust group 74, thereby improving the heat recovery efficiency.

[0038] Further explanation, such as Figure 6 As shown, the exhaust group 74 includes a steam collecting pipe 741, the left end of the steam collecting pipe 741 is fixedly connected to a bend pipe 742, the inner cavity of the bend pipe 742 is rotatably connected to a fan blade 743, the front end of the fan blade 743 passes through the inner cavity of the bend pipe 742 and is fixedly connected to a transmission wheel 1 744, the lower end of the bend pipe 742 is fixedly connected to an L-shaped steam exhaust pipe 745, the input end of the water supply pipe 78 is fixedly connected to the output end of the water supply pump 4, the right end of the steam collecting pipe 741 is fixedly connected to the left end of the steam pipe component 73, and the transmission wheel 1 744 is connected to the rear side of the transmission component 2 9 by a belt.

[0039] In detail, the high-temperature steam in the steam pipe component 73 enters the curved pipe 742 through the steam collecting pipe 741 and drives the fan blades 743 to rotate. The rotation of the fan blades 743 drives the transmission wheel 1 744 to rotate, and the transmission wheel 1 744 is connected to the pulley in the transmission component 2 9 through a belt, thereby driving the transmission component 2 9 to operate, so that the transmission component 2 9 drives the heat energy circulation mechanism 8 to operate and filter the high-temperature flue gas. The steam in the inner cavity of the curved pipe 742 enters the external steam heat recovery device through the L-shaped exhaust pipe 745 for energy recycling.

[0040] In order to filter out impurities such as particles and soot in high-temperature flue gas and further recycle waste heat, Figure 7 and Figure 8 As shown, the heat energy circulation mechanism 8 includes a second shell 81, a third shell 82 is fixedly connected to the middle of the front end of the second shell 81, an L-shaped bracket 85 is fixedly connected to the front side of the left end of the second shell 81, the inner cavity of the third shell 82 and the inner cavity of the L-shaped bracket 85 are rotatably connected to a transmission component 1 86, the lower end of the second shell 81 is fixedly connected to the fourth shell 88, the lower side of the inner cavity of the second shell 81 is fixedly connected to a heat circulation component 87, the inner cavity of the second shell 81 is provided with a cleaning group 84, the front side of the cleaning group 84 is meshed with the transmission component 1 86, the upper side of the left end of the second shell 81 is provided with a mounting hole 1 83, the middle part of the rear end of the second shell 81 is fixedly connected to a discharge pipe 89, and the input end of the recirculation fan 5 is fixed to the right part of the lower side of the outer surface of the second shell 81 The water inlet pipe component 75 is sleeved on the inner cavity of the shell 2 81 and passes through the cleaning group 84. The inner cavity of the shell 4 88 is fixedly connected to the outer surface of the curved pipe component 76. The output end of the water supply pipe 78 passes through the shell 4 88 and is fixedly connected to the input end of the curved pipe component 76. The left end of the steam pipe component 73 passes through the inner cavity of the shell 2 81 and the inner cavity of the mounting hole 1 83 in sequence, and the steam pipe component 73 is located on the upper side of the water inlet pipe component 75. The input and output ends of the heat circulation component 87 both pass through the left wall of the inner cavity of the shell 2 81 and are fixedly connected to the thermal energy component 91. The input end of the smoke exhaust heat dissipation curved pipe 33 passes through the inner cavity of the shell 1 31 and is fixedly connected to the output end of the shell 4 88. The right end of the shell 2 81 is fixedly connected to the upper side of the left end of the vertical boiler 6.

[0041] First of all, it should be noted that the heat circulation component 87 is composed of multiple layers of curved and densely connected pipes and other components. There is water inside the pipes. After absorbing heat, the water transfers the heat to the thermal energy component 91. The transmission component 1 86 is composed of a long rod and three bevel gears that are compatible with the bevel gear 1 843, and the bevel gear located on the left side is compatible with the bevel gear in the transmission component 2 9, and the other two are respectively meshed and connected with the two bevel gears 1 843 in the cleaning group 84. The high-temperature flue gas in the vertical boiler 6 enters the inner cavity of the shell 2 81 through the upper left part of the inner cavity of the vertical boiler 6, and begins to move downward through the cleaning group 84 to filter out impurities such as particles and soot in the high-temperature flue gas. At the same time, the operation of the transmission component 2 9 will drive the transmission component 1 86 to rotate in the inner cavity of the shell 3 82. The L-shaped bracket 85 is installed to provide auxiliary support for the transmission component 1 86, but it does not affect the rotation of the transmission component 1 86 itself. The rotation of component 1 86 drives the cleaning group 84 to operate, automatically scraping off particles, soot and other impurities, and the scraped particles, soot and other impurities are discharged into the discharge pipe 89. In the initial state, the discharge pipe 89 is closed, and can be opened when the soot needs to be processed regularly. The filtered high-temperature flue gas passes through the heat circulation component 87, and the residual heat in the high-temperature flue gas is absorbed again by the heat circulation component 87. The heat absorbed in the heat circulation component 87 is transferred to the thermal energy component 91, and the cold water in the thermal energy component 91 enters the thermal circulation component 87, and the residual heat in the high-temperature flue gas is continuously absorbed in a reciprocating cycle. The recovered heat can be used for other process or domestic water heating through the thermal energy component 91, so as to realize energy reuse. In addition, filtering out particles, soot and other impurities in the high-temperature flue gas before the heat circulation component 87 can avoid adhesion to the heat transfer elements in the heat circulation component 87, affecting its heat transfer efficiency, and even causing equipment damage, while reducing pollution to the environment.

[0042] Further explanation, such as Fig. 9 and Fig.10As shown, the cleaning group 84 includes two arc-shaped plates 841 arranged in a front-back tilted manner, the lower ends of the two arc-shaped plates 841 are fixedly connected to a metal filter plate 842, the two arc-shaped plates 841 are provided with mounting grooves 846 on the opposite lower sides, the inner cavities of the two mounting grooves 846 are rotatably connected to reciprocating screws 847, the front ends of the two reciprocating screws 847 penetrate the inner cavity of the housing 2 81 and are fixedly connected to a bevel gear 1 843, the outer surfaces of the two bevel gears 1 843 are meshed and connected to the transmission component 1 86, and the outer surfaces of the two reciprocating screws 847 are meshed and connected to the transmission component 1 86. A cleaning scraper 845 is meshed together on the surface, and the left and right sides of the outer surface of the cleaning scraper 845 are respectively slidably connected to the inner cavities of the two mounting grooves 846. The two arc plates 841 are provided with sliding grooves 848 on the opposite lower sides, and the inner cavities of the two sliding grooves 848 are provided with sliding plates 849. A mounting hole 844 is provided in the middle of the upper end of the left arc plate 841, and the outer surface of the water inlet pipe component 75 passes through the inner cavity of the mounting hole 844. The ends of the two arc plates 841 that are away from each other are respectively fixedly connected to the left and right walls of the inner cavity of the shell 81.

[0043] In detail, the sliding plate 849 is composed of a plurality of springs and a top plate, and the plurality of springs are installed between the inner cavity of the sliding groove 848 and the top plate. The metal filter plate 842 is composed of a connecting bottom plate and a metal fiber filter screen, and the metal fiber filter screen is installed in the middle of the connecting bottom plate, and the cleaning group 84 is tilted as a whole, and the tilted rear end of the metal filter plate 842 is aligned with the inner cavity of the discharge pipe 89. The cleaning scraper 845 is composed of a sliding connecting rod and a rotating scraper, and the rotating scraper is installed on the rear side of the sliding connecting rod and can rotate backward on the sliding connecting rod. In the initial state, the sliding connecting rod and the rotating scraper are vertical, and impurities such as particles and soot in the high-temperature flue gas can be filtered through the metal filter plate 842, and when the transmission component 86 drives the two bevel gears 843 to rotate at the same time, it will drive the two reciprocating screws 847 to rotate in the inner cavities of the two mounting grooves 846 respectively, and through the two reciprocating screws 84 The rotation of 7 will drive the cleaning scraper 845 to tilt and slide back and forth, and in the process of reciprocating sliding, when the cleaning scraper 845 slides from the rear side to the front side, the rotating scraper in the cleaning scraper 845 is blocked by the top rod and rotates to the rear side, and slides forward tilted on the upper sides of the two top rods in the sliding plates 849 on the left and right sides without contacting the metal filter plate 842. When the cleaning scraper 845 slides from front to back, the rotating scraper in the cleaning scraper 845 is blocked by the top plate in the sliding plate 849, but the rotating scraper in the cleaning scraper 845 cannot rotate forward on the sliding connecting rod. At this time, the sliding plate 849 will be compressed, so that the sliding plate 849 enters the inner cavity of the sliding groove 848. While the cleaning scraper 845 slides to the rear side, it scrapes off particles, soot and other impurities on the surface of the metal filter plate 842 and drops them into the discharge pipe 89, ultimately achieving the purpose of filtering and automatically cleaning the high-temperature flue gas.

[0044] Embodiment 3: Based on Embodiment 1 and Embodiment 2, this embodiment realizes the treatment of toxic and harmful gases in high temperature flue gas, such as Fig.11 As shown, the smoke exhaust group 1 includes a shell 5 11, the input end of the shell 5 11 is fixedly connected to the output end of the smoke exhaust heat dissipation curved pipe 33 through a smoke pipe, a feed pipe 12 is fixedly connected to the front portion of the upper left end of the shell 5 11, two partition plates 13 are fixedly connected to the middle portion of the inner cavity of the shell 5 11, a discharge plate 14 is fixedly connected to the lower side of the rear end of the shell 5 11, a limiting groove 15 is provided on the front side of the upper end of the discharge plate 14, and a clamping plate 16 is slidably connected to the inner cavity of the limiting groove 15.

[0045] First of all, it should be noted that the two partition plates 13 are arranged at an angle. Through the feed pipe 12, an appropriate amount of activated carbon can be put between the two partition plates 13. The flue gas enters the bottom of the inner cavity of the outer shell 5 11 through the air pipe, and then passes through the activated carbon between the two partition plates 13. At this time, the activated carbon adsorbs toxic and harmful gases in the flue gas to achieve harmless treatment of the flue gas, and finally is discharged from the upper side of the inner cavity of the outer shell 5 11. When the activated carbon needs to be replaced, push the card plate 16 upward to disengage the card plate 16 from the inner cavity of the limiting groove 15, and the activated carbon between the two partition plates 13 will be discharged from the inner cavity of the discharge plate 14, which is convenient and fast, saving time and effort.

[0046] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A heat energy circulation air supply device for a coal boiler, comprising a vertical boiler (6), characterized in that: A heat energy circulation mechanism (8) is fixedly connected to the upper left end of the vertical boiler (6); a steam mechanism (7) is provided on the right side of the vertical boiler (6) and the heat energy circulation mechanism (8); a recirculation fan (5) is provided on the lower left end of the vertical boiler (6) and the heat energy circulation mechanism (8); a heat energy component (91) is provided on the left side of the heat energy circulation mechanism (8); a transmission component 2 (9) is provided on the upper end of the heat energy component (91); a heating group (3) is provided at the front of the lower left end of the vertical boiler (6); a blower (2) is provided on the left side of the heating group (3); a water supply pump (4) is provided at the right lower side of the heat energy circulation mechanism (8); the lower front side of the heat energy circulation mechanism (8) is fixedly connected to the rear side of the heating group (3); and the lower rear side of the heating group (3) is fixedly connected to a smoke exhaust group (1) via an air pipe.

2. The heat energy circulation air supply device for a coal boiler according to claim 1, characterized in that: The heating group (3) comprises an outer shell (31), an air outlet pipe (32) is fixedly connected to the upper right end of the outer shell (31), an air inlet pipe (34) is fixedly connected to the upper left end of the outer shell (31), and a smoke exhaust and heat dissipation curved pipe (33) is fixedly connected to the inner cavity of the outer shell (31).

3. The heat energy circulation air supply device for a coal boiler according to claim 2, characterized in that: The steam mechanism (7) comprises a heat absorbing plate (71), the outer surface of which is fixedly connected to the right wall of the inner cavity of the vertical boiler (6), a U-shaped water pipe component (72) is fitted and connected to the left side of the outer surface of the heat absorbing plate (71), the lower side of the outer surface of the U-shaped water pipe component (72) penetrates the right wall of the inner cavity of the vertical boiler (6), the upper end of the U-shaped water pipe component (72) is fixedly connected to a water tank (77), the upper side of the outer surface of the water tank (77) is fixedly connected to a steam pipe component (73), the left end of the steam pipe component (73) penetrates the heat energy circulation mechanism (8) and is fixedly connected to an exhaust steam group (74), the middle part of the left side of the outer surface of the water tank (77) is fixedly connected to a water inlet pipe component (75), the end of the water inlet pipe component (75) away from the water tank (77) is fixedly connected to a curved pipe component (76), and the input end of the curved pipe component (76) is fixedly connected to a water supply pipe (78).

4. The heat energy circulation air supply device for a coal boiler according to claim 3, characterized in that: The exhaust group (74) comprises a steam collecting pipe (741), the left end of the steam collecting pipe (741) is fixedly connected to a curved pipe (742), the inner cavity of the curved pipe (742) is rotatably connected to a fan blade (743), the front end of the fan blade (743) passes through the inner cavity of the curved pipe (742) and is fixedly connected to a transmission wheel (744), and the lower end of the curved pipe (742) is fixedly connected to an L-shaped exhaust pipe (745).

5. The heat energy circulation air supply device for a coal boiler according to claim 4, characterized in that: The input end of the water supply pipe (78) is fixedly connected to the output end of the water supply pump (4), the right end of the steam collecting pipe (741) is fixedly connected to the left end of the steam pipe component (73), and the driving wheel 1 (744) is connected to the rear side of the driving component 2 (9) by winding a belt.

6. The heat energy circulation air supply device for a coal boiler according to claim 3, characterized in that: The heat energy circulation mechanism (8) comprises a second shell (81), the middle part of the front end of the second shell (81) is fixedly connected to the third shell (82), the front side of the left end of the second shell (81) is fixedly connected to the L-shaped bracket (85), the inner cavity of the third shell (82) and the inner cavity of the L-shaped bracket (85) are rotatably connected to a transmission component (86), the lower end of the second shell (81) is fixedly connected to the fourth shell (88), the lower side of the inner cavity of the second shell (81) is fixedly connected to the heat circulation component (87), the inner cavity of the second shell (81) is provided with a cleaning group (84), the front side of the cleaning group (84) is meshed with the transmission component (86), the upper side of the left end of the second shell (81) is provided with a mounting hole (83), and the middle part of the rear end of the second shell (81) is fixedly connected to a discharge pipe (89).

7. The heat energy circulation air supply device for a coal boiler according to claim 6, characterized in that: The input end of the recirculation fan (5) is fixedly connected to the lower right part of the outer surface of the second shell (81); the water inlet pipe component (75) is sleeved in the inner cavity of the second shell (81) and passes through the cleaning group (84); the inner cavity of the fourth shell (88) is fixedly connected to the outer surface of the curved pipe component (76); the output end of the water supply pipe (78) passes through the fourth shell (88) and is fixedly connected to the input end of the curved pipe component (76); the left end of the steam pipe component (73) passes through the second shell (81) and the second shell (84) in sequence. 1) inner cavity and mounting hole one (83) inner cavity, and the steam pipe component (73) is located on the upper side of the water inlet pipe component (75), the input end and the output end of the heat circulation component (87) both pass through the left wall of the inner cavity of the shell two (81) and are fixedly connected to the thermal energy component (91), the input end of the smoke exhaust heat dissipation curved pipe (33) passes through the inner cavity of the shell one (31) and is fixedly connected to the output end of the shell four (88), and the right end of the shell two (81) is fixedly connected to the upper side of the left end of the vertical boiler (6).

8. The heat energy circulation air supply device for a coal boiler according to claim 6, characterized in that: The cleaning group (84) comprises two arc-shaped plates (841) arranged to be inclined forward and backward, the lower ends of the two arc-shaped plates (841) are fixedly connected to a metal filter plate (842), the two arc-shaped plates (841) are provided with mounting grooves (846) on the opposite lower sides, the inner cavities of the two mounting grooves (846) are rotatably connected to reciprocating screws (847), the front ends of the two reciprocating screws (847) pass through the inner cavity of the second housing (81) and are fixedly connected to a bevel gear (843), the outer surfaces of the two bevel gears (843) are meshedly connected to the transmission component (86), and the outer surfaces of the two reciprocating screws (847) are The surfaces are meshed and connected with a cleaning scraper (845), and the left and right sides of the outer surface of the cleaning scraper (845) are respectively slidably connected to the inner cavities of the two mounting grooves (846). The two arc plates (841) are provided with sliding grooves (848) on the opposite lower sides, and the inner cavities of the two sliding grooves (848) are provided with sliding plates (849). A second mounting hole (844) is provided in the middle of the upper end of the left arc plate (841), and the outer surface of the water inlet pipe component (75) passes through the inner cavity of the second mounting hole (844). The ends of the two arc plates (841) that are away from each other are respectively fixedly connected to the left and right walls of the inner cavity of the second shell (81).

9. The heat energy circulation air supply device for a coal boiler according to claim 2, characterized in that: The smoke exhaust group (1) comprises a shell five (11), the input end of the shell five (11) is fixedly connected to the output end of the smoke exhaust heat dissipation curved pipe (33) through a smoke pipe, a feed pipe (12) is fixedly connected to the front portion of the upper left end of the shell five (11), two partition plates (13) are fixedly connected to the middle portion of the inner cavity of the shell five (11), a discharge plate (14) is fixedly connected to the lower side of the rear end of the shell five (11), a limiting groove (15) is provided on the front side of the upper end of the discharge plate (14), and a clamping plate (16) is slidably connected to the inner cavity of the limiting groove (15).

Images