Thermal power generation combustion carbon emission reduction device and carbon emission reduction method

Abstract

The invention relates to the field of power generation carbon emission reduction, and discloses a thermal power generation combustion carbon emission reduction device and a carbon emission reduction method.The thermal power generation combustion carbon emission reduction device comprises a mixing box, a supporting seat fixed to the upper end of the interior of the mixing box and a feeding opening formed in the upper end of the left side of the mixing box; the supporting shaft is rotationally connected with the mixing box, and a plurality of stirring blades are fixed on the supporting shaft; clear water in a water storage chamber moves upwards through upward sliding of a sealing sliding plate, clear water at the upper end enters from a water inlet and then is discharged from a drainage groove to drop on coal, the clear water is stirred by a stirring plate to be mixed with the coal, the coal is soaked, water can permeate into pores of the coal in the high-temperature combustion process of the soaked coal, and after the coal begins to burn, the water can permeate into the pores of the coal along with temperature rise. Water begins to evaporate and separate out, coal micropores can be enlarged, oxygen can enter the coal to be subjected to an oxidation reaction, and the combustion reaction is promoted.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon emission reduction in power generation, and in particular to a carbon emission reduction device and a carbon emission reduction method for thermal power generation combustion. Background Art

[0002] With the continuous development of science and technology, the thermal power generation industry is also constantly exploring and applying new emission reduction technologies, including high-efficiency combustion technology, flue gas desulfurization and denitrification technology, waste heat recovery technology, etc. Combustion emission reduction in thermal power generation is an important issue facing the power industry, aiming to reduce pollutant emissions generated during the combustion process and improve energy efficiency.

[0003] Related patent 202221439798.6 A high-efficiency emission reduction device for thermal power generation combustion technology, including a mixing box, a first motor is fixedly connected to the top of the mixing box, and introduces that the combustion efficiency of coal is improved by mixing coal with a combustion aid, so that the coal can be burned more fully and the emission of harmful gases, such as carbon dioxide, is reduced.

[0004] Adding combustion aids to coal can promote complete combustion, but the promotion effect has certain limitations. The contact range between coal and combustion aid is limited, especially the internal pore size of coal is small, and there is less space for oxygen intake. Therefore, the promotion of coal combustion needs to be improved. In the study, wetting coal with water can increase the dissolved oxygen in the internal pores. However, excessive or uneven wetting of coal with water will have a certain impact on the combustion of coal.

[0005] Based on this, a thermal power generation combustion carbon emission reduction device and a carbon emission reduction method are proposed here to solve the problem of wetting coal with water but not adding too much water. Summary of the invention

[0006] In order to overcome the above technical problems, the purpose of the present invention is to provide a thermal power generation combustion carbon emission reduction device and a carbon emission reduction method. The purpose of the present invention can be achieved by the following technical solutions: A thermal power generation combustion carbon emission reduction device, comprising a mixing box, a support seat fixed at the upper end thereof, and a feed port installed at the upper left end of the mixing box, an emission reduction mechanism installed at the left side of the mixing box, the emission reduction mechanism comprising a support shaft, the support shaft being rotatably connected to the mixing box, a plurality of stirring blades being fixed to the support shaft, a stirring plate with an arc structure being fixed to the mixing box, the stirring plate; The mixing box is equipped with a hole expansion mechanism, which includes a water tank, the water tank is fixed on the right side of the mixing box, a sealing slide with an arc structure is vertically slidably connected to the middle part of the water tank, the upper end of the water tank and the sealing slide form a water storage chamber, and an inclined water guide seat is rotatably installed on one side of the support seat, a water inlet is opened on the horizontal section of the water guide seat, and a drainage groove connected to the water inlet is penetrated at the inclined end of the water guide seat; The water tank is connected to a heat dissipation mechanism for cooling; A slag discharge mechanism is installed at the left bottom end of the mixing box.

[0007] Preferably, the hole expansion mechanism also includes a rotating rod, which is fixedly connected to the center part of the horizontal end of the water guide seat, and the rotating rod is rotatably connected to the mixing box. A plurality of fan-shaped linings are fixed to the lower surface of the sealing slide, and a center rod is fixed to the bottom end of the lining. A connecting box with an open upper end is fixed to the right side of the mixing box, and a connecting pipe with an L-shaped connection is fixed to the bottom end of the connecting box. The horizontal end of the connecting pipe is fixedly connected to the water tank and communicated with the water storage chamber. The upper end of the connecting box and the top end of the left side of the water tank are in the same horizontal plane, and a vertically arranged fixing column is fixed to the lower surface of the sealing slide.

[0008] Preferably, the rotating rod is connected to a driving assembly, and the driving assembly includes a movable block, the movable block is fixedly connected to the rotating rod and is laterally arranged, one end of the movable block is rotatably connected to a connecting rod, a fixed block is fixed to the upper surface of the sealing slide, and the lower end of the connecting rod is rotatably connected to the fixed block.

[0009] Preferably, the emission reduction mechanism also includes a cylinder, which is fixed at the bottom end of the water tank, the telescopic end of the cylinder is fixedly connected to the bottom end of the fixed column, the left bottom end of the water tank is rotatably connected to a discharge plate with an arc structure, the left end of the discharge plate is fitted with the right side of a stirring plate, a motor is fixed to the back of the mixing box, the output shaft of the motor is fixedly connected to the end of the support seat, the right side of the discharge plate is rotatably connected to a movable long rod, the movable long rod passes through the bottom of the water tank and the upper end is rotatably connected to the telescopic end of the cylinder.

[0010] Preferably, the slag discharge mechanism includes a filter screen, which is fixed through the middle part of the stirring plate, a slag discharge plate is fixed with an inclined arrangement at the bottom left end of the mixing box, a guide plate is fixed with an inclined downward arrangement at the right end of the slag discharge plate, and a material discharge opening which is wide at the top and narrow at the bottom is formed between the right side of the slag discharge plate and the mixing box, a slag discharge opening is penetrated through the left side of the bottom end of the mixing box, and the bottom end of the slag discharge plate extends out of the left side of the slag discharge opening.

[0011] Preferably, the heat dissipation mechanism includes a heat sink, which is fixedly connected to the mixing box and extends into the water storage chamber of the water tank. The other end of the heat sink extends out of the back of the mixing box. The back of the mixing box is rotatably connected to a rotating shaft, and a stirrer blade is fixed to the end of the rotating shaft. The stirrer blade is located on the right side of the heat sink.

[0012] Preferably, the heat dissipation mechanism also includes a rotating plate, which is fixed at the end of the rotating rod, a belt is connected between the rotating shaft and the outside of the supporting shaft, the outer surface of the agitator blade is rotatably connected to a connecting rod, and one end of the connecting rod is rotatably connected to the lower end of the rotating plate.

[0013] The present invention provides a method for reducing emissions by burning charcoal in thermal power generation, which is applicable to the above-mentioned device for reducing emissions by burning charcoal in thermal power generation, and comprises the following steps: Step 1: Coal and combustion aid enter from the feed port and fall onto the stirring plate. The motor works to rotate the support shaft and stirring blades to stir the coal and combustion aid. The cylinder extends to drive the movable long rod to move, pull the discharge plate to rotate clockwise, open the discharge port, and let the coal fall into the combustion furnace. Step 2: The water storage chamber, the connecting pipe, and the connecting box form a communicating vessel, and clean water is injected from the top of the connecting box and enters the water storage chamber from the connecting pipe until the liquid level of the water storage chamber and the connecting box is level; Step 3: During the mixing process, the cylinder is extended to move the fixed column upward and push the sealing slide plate upward, so that water is pushed out from the water guide seat and drips onto the coal. The water is stirred by the stirring plate and mixed with the coal, so that the coal is soaked and then discharged into the combustion furnace; Step 4: After the coal is soaked, excess water and fine coal are discharged from the filter, fall onto the slag discharge plate, and then flow out from the slag discharge port, reducing the moisture content of the coal and fine coal, and preventing the fine coal from entering the combustion furnace and affecting combustion.

[0014] The beneficial effects of the present invention are as follows: 1. During the process of stirring coal and combustion-supporting agent, the present invention slides upward through the sealing slide plate to move the clean water inside the water storage chamber upward, the clean water at the upper end enters from the water inlet and is discharged from the drainage trough and drips onto the coal, and is stirred and mixed with the coal by the stirring plate to soak the coal. During the high-temperature combustion of the soaked coal, water can penetrate into the pores of the coal. When the coal starts to burn, as the temperature rises, the water begins to evaporate and precipitate, which will increase the micropores of the coal, which is conducive to the entry of oxygen into the coal for oxidation reaction and promote the combustion reaction. At the same time, water will also decompose at high temperature to produce trace amounts of hydrogen and oxygen, which play a role in combustion-supporting and further reduce carbon emissions. In addition, the water storage chamber stores clean water, which can absorb the heat generated by the friction of the coal during the stirring process to prevent the coal inside the mixing box from overheating and causing danger.

[0015] 2. The heat sink is used to cool the water inside the water storage box by exchanging heat with the outside world, so as to cool the inside of the mixing box to prevent high temperature generated by coal stirring friction. The motor is used to rotate the support shaft and stirring blades to stir the coal and combustion aid. During the rotation of the support shaft, the belt drives the rotating shaft and stirring blades to rotate, and accelerates the air flow around the heat sink for heat exchange, so as to quickly cool the inside of the water storage chamber. During the rotation of the rotating shaft, the connecting rod is driven to move, so that the rotating plate can swing back and forth, and the rotating rod can rotate back and forth in a small range, so that the water guide seat connected to the rotating rod can swing back and forth, and the drainage range of the water guide seat can be adjusted, so that the water discharged from the water guide seat has a wider range, so that the water contacts the coal and soaks the coal. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 A schematic diagram of the overall structure of a thermal power generation combustion carbon emission reduction device provided by the present invention; Figure 2 The present invention Figure 1 An enlarged schematic diagram of part A is shown; Figure 3 is a schematic diagram of the hole expansion mechanism of the present invention; Figure 4 The present invention Figure 1 Schematic diagram of the back of the mixing box shown; Figure 5 The present invention Figure 4 An enlarged schematic diagram of part B is shown; Figure 6 is a schematic diagram of the interior of the mixing box of the present invention; Figure 7 It is a schematic diagram of the present invention when the discharge port is opened; Figure 8 It is a schematic diagram of the heat dissipation mechanism at the back of the mixing box of the present invention.

[0018] In the figure: 1, mixing box; 101, feed port; 102, support seat; 2, discharge reduction mechanism; 21, stirring blade; 22, support shaft; 23, stirring plate; 24, discharge plate; 25, motor; 26, movable long rod; 27, cylinder; 28, discharge port; 3, hole expansion mechanism; 31, water tank; 32, lining; 33, water storage chamber; 34, connecting box; 35, connecting pipe; 36, sealing slide plate; 37, water guide seat; 38, discharge Sink; 39, water inlet; 310, rotating rod; 311, fixed column; 312, center rod; 4, heat dissipation mechanism; 41, heat sink; 42, belt; 43, fan blade; 44, rotating shaft; 45, connecting rod; 46, rotating plate; 5, slag discharge mechanism; 51, slag discharge plate; 52, slag discharge port; 53, guide plate; 54, filter screen; 55, drop port; 6, drive assembly; 61, movable block; 62, connecting rod; 63, fixed block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Embodiment 1

[0021] See also Figure 1 - Figure 8As shown, a thermal power generation combustion carbon emission reduction device comprises a mixing box 1, a support seat 102 fixed at the upper end thereof, and a feed port 101 installed at the upper end of the left side of the mixing box 1, an emission reduction mechanism 2 is installed at the left side of the mixing box 1, and the emission reduction mechanism 2 comprises a support shaft 22, the support shaft 22 is rotatably connected to the mixing box 1, a plurality of stirring blades 21 are fixed to the support shaft 22, and an arc-shaped stirring plate 23 is fixed inside the mixing box 1, and the stirring plate 23; during stirring, coal and combustion aid enter from the feed port 101 and fall onto the stirring plate 23, and the stirring plate 23 rotates to stir the coal and the combustion aid to mix, so as to promote the full mixing of the coal and reduce carbon emission; In order to increase the internal pore size and oxygen content during coal combustion and improve combustion efficiency, the mixing box 1 is installed with a hole expansion mechanism 3, which includes a water tank 31. The water tank 31 is fixed on the right side of the mixing box 1. The middle part of the water tank 31 is vertically slidably connected with a sealing slide plate 36 with an arc structure. The upper end of the water tank 31 and the sealing slide plate 36 form a water storage chamber 33. A water guide seat 37 is rotatably installed on one side of the support seat 102. A water inlet 39 is opened in the horizontal section of the water guide seat 37. Multiple water inlets 39 are arranged horizontally. A drainage groove 38 connected to the water inlet 39 is penetrated at the inclined end of the water guide seat 37. In order to expand the coal, the water storage chamber 33 above the sealing slide plate 36 stores clean water, and the liquid level is level with the bottom of the water inlet 39. In the process of stirring the coal and the combustion aid, the clean water in the water storage chamber 33 moves upward through the sliding of the sealing slide plate 36, and the clean water at the upper end is discharged from the water inlet 39. The water enters the water tank 38 and then is discharged from the water drain trough 38 and drips onto the coal. The water is stirred by the stirring plate 23 and mixed with the coal to make the coal wet. During the high-temperature combustion process of the wet coal, the water can penetrate into the pores of the coal. When the coal starts to burn, as the temperature rises, the water begins to evaporate and precipitate, which will increase the micropores of the coal, which is conducive to the entry of oxygen into the coal to cause an oxidation reaction and promote the combustion reaction. At the same time, water will also decompose at high temperatures to produce trace amounts of hydrogen and oxygen, which play a role in combustion and further reduce carbon emissions. The water storage chamber 33 stores clean water, which can absorb the heat generated by the friction of the coal during the stirring process to prevent the coal in the mixing box 1 from overheating and causing danger. The sealing slide plate 36 moves downward, the liquid level drops, and the water guide seat 37 stops draining water, so that the water inside the water storage chamber is intermittently discharged and the coal in the mixing process is fully and evenly contacted, which can both wet the coal and prevent the coal from being soaked in too much water and affecting combustion. The water tank 31 is connected to a heat dissipation mechanism 4 for cooling; A slag discharge mechanism 5 is installed at the bottom left side of the mixing box 1.

[0022] To achieve better contact between water and coal, see Figure 1 , Figure 2 , Figure 3The hole expansion mechanism 3 also includes a rotating rod 310, which is fixedly connected to the center of the horizontal end of the water guide seat 37, and the rotating rod 310 is rotatably connected to the mixing box 1. A plurality of linings 32 distributed in a fan shape are fixed to the lower surface of the sealing slide 36, and a center rod 312 is fixed to the bottom end of the lining 32. A connecting box 34 with an upper opening is fixed to the right side of the mixing box 1. A connecting pipe 35 with an L-shaped connection is fixed to the bottom end of the connecting box 34. The horizontal end of the connecting pipe 35 is fixedly connected to the water tank 31 and communicated with the water storage chamber 33. The upper end of the connecting box 34 is in the same horizontal plane as the top end of the left side of the water tank 31. A vertically arranged fixing column 311 is fixed to the lower surface of the sealing slide 36; the water storage chamber 33, the connecting pipe 35 is fixed to the bottom end of the connecting box 34, and the connecting pipe 35 is fixedly connected to the water tank 31 and communicated with the water storage chamber 33. The upper end of the connecting box 34 is in the same horizontal plane as the top end of the left side of the water tank 31. A vertically arranged fixing column 311 is fixed to the lower surface of the sealing slide 36; The through pipe 35 and the connecting box 34 form a connecting vessel, and clean water is injected from the top of the connecting box 34 and enters the water storage chamber 33 from the connecting pipe 35 until the liquid level in the water storage chamber 33 is level with that in the connecting box 34. In this way, the water is pushed into the water guide seat 37 by moving the sealing slide 36 upward and then mixed with the coal. By observing the liquid level in the connecting box 34, the water storage is replenished inside. In addition, in order to provide a sealing effect for the sealing slide 36, the sealing slide 36 can have a certain elasticity. A plurality of linings 32 are arranged on the lower surface of the sealing slide 36, and the bottom ends of the plurality of linings 32 are connected to the center rod 312 to provide support capacity for the sealing slide 36, so that water is stored inside the water storage chamber 33 to absorb heat and replenish water for the coal.

[0023] Embodiment 2

[0024] In this embodiment, in order to realize the swing of the water guide seat 37 to increase the coal water replenishment range, refer to Figure 2 The rotating rod 310 is connected to a driving assembly 6, and the driving assembly 6 includes a movable block 61. The movable block 61 is fixedly connected to the rotating rod 310 and is arranged horizontally. One end of the movable block 61 is rotatably connected to a connecting rod 62. A fixed block 63 is fixed to the upper surface of the sealing slide plate 36, and the lower end of the connecting rod 62 is rotatably connected to the fixed block 63; when the sealing slide plate 36 slides up, the water inside the water storage type is discharged from the inside of the water guide seat 37 and mixed with the coal, the sealing slide plate 36 slides up to drive the fixed block 63 to move up, so that the connecting rod 62 moves, and pushes the movable block 61 to rotate counterclockwise, driving the rotating rod 310 and the water guide seat 37 to rotate. When the sealing slide plate 36 slides down, under the action of the connecting rod 62, the sealing slide plate 36 is pulled to rotate clockwise, thereby realizing the swinging of the sealing slide plate 36, so that the water discharged from the drainage groove 38 swings to guide other positions of the coal, increases the water guide range, accelerates the mixing of coal and water, and is used for coal combustion hole expansion.

[0025] See also Figure 1 , Figure 6In order to realize the sliding and resetting of the sealing slide plate 36, the emission reduction mechanism 2 also includes a cylinder 27, which is fixed to the bottom end of the water tank 31, and the telescopic end of the cylinder 27 is fixedly connected to the bottom end of the fixed column 311. The left bottom end of the water tank 31 is rotatably connected to a discharge plate 24 with an arc structure, and the left end of the discharge plate 24 is in contact with the right side of the stirring plate 23. A motor 25 is fixed to the back of the mixing box 1, and the output shaft of the motor 25 is fixedly connected to the end of the support seat 102. The right side is rotatably connected with a movable long rod 26, which penetrates the bottom of the water tank 31 and the upper end of which is rotatably connected with the telescopic end of the cylinder 27; when the coal falls onto the stirring plate 23 and is mixed with the combustion aid by the rotation of the stirring blade 21, the cylinder 27 is extended to move the fixed column 311 upward and push the sealing slide plate 36 to slide, so that the water is pushed out from the water guide seat 37. During the extension process of the cylinder 27, the movable long rod 26 is driven to move, and the discharge plate 24 is pulled to rotate clockwise to open the discharge port 28 (see Figure 7 ), at this time, part of the mixed coal and combustion aid falls from the discharge port 28 and is discharged into the thermal power generation combustion furnace. By controlling the cylinder 27 to work and contract, the sealing slide plate 36 is pulled down to reset, and the discharge plate 24 is pushed to rotate clockwise and reset to block the discharge port 28 under the action of the two long rods. The stirring blade 21 continues to mix the coal and combustion aid on the stirring plate 23. In this way, during the stirring process, the coal and the combustion aid are intermittently discharged into the combustion furnace, so that the coal, the combustion aid and the water are stirred and mixed while being discharged, thereby improving the mixing efficiency of the coal and the combustion aid.

[0026] To wet the coal and drain the excess water, refer to Figure 1 , Figure 7 The slag discharge mechanism 5 includes a filter screen 54, which is fixed through the middle part of the stirring plate 23. An inclined slag discharge plate 51 is fixed at the bottom left side of the mixing box 1, and a guide plate 53 inclined downward is fixed at the right end of the slag discharge plate 51. A material drop opening 55 with a wide top and a narrow bottom is formed between the right side of the slag discharge plate 51 and the mixing box 1. A slag discharge opening 52 is penetrated on the left side of the bottom end of the mixing box 1, and the bottom end of the slag discharge plate 51 extends out of the left side of the slag discharge opening 52; during the stirring and mixing of coal, combustion aid and water on the stirring plate 23, excess water and fine coal are discharged from the filter screen 54 after the coal is soaked, fall on the slag discharge plate 51, and then flow out from the slag discharge opening 52, reducing the moisture content of the coal and the fine coal, and preventing the fine coal from entering the combustion furnace and affecting the combustion.

[0027] Embodiment 3

[0028] Different from the driving method of the water guide seat 37 in the first embodiment, see Figures 2 to 5The heat dissipation mechanism 4 includes a heat sink 41, which is fixedly connected to the mixing box 1 and extends into the water storage chamber 33 of the water tank 31. The other end of the heat sink 41 extends out of the back of the mixing box 1. The back of the mixing box 1 is rotatably connected with a rotating shaft 44, and a fan blade 43 is fixed at the end of the rotating shaft 44. The fan blade 43 is located on the right side of the heat sink 41. The heat dissipation mechanism 4 also includes a rotating plate 46, which is fixed at the end of the rotating rod 310. A belt 42 is connected between the rotating shaft 44 and the outside of the support shaft 22. The outer surface of the fan blade 43 is rotatably connected with a connecting rod 45, and one end of the connecting rod 45 is rotatably connected to the lower end of the rotating plate 46; the heat sink 41 is used for exchanging heat between the internal water of the water storage type and the outside to cool down the mixing box 1. The cooling of the part prevents the high temperature generated by the stirring friction of the coal. The motor 25 works to realize the rotation of the support shaft 22 and the stirring blade 21 to stir the coal and the combustion-aiding agent. During the rotation of the support shaft 22, under the action of the belt 42, the rotating shaft 44 and the stirring blade 43 are driven to rotate, and the air flow around the heat sink 41 is accelerated for heat exchange, so that the inside of the water storage chamber 33 is quickly cooled. In the rotation process of the rotating shaft 44, the connecting rod 45 is driven to move, and the rotating plate 46 is swung back and forth, so that the rotating rod 310 is rotated back and forth with a small amplitude, so that the water guide seat 37 connected to the rotating rod 310 is swung back and forth, and the drainage range of the water guide seat 37 is adjusted, so that the water discharged from the water guide seat 37 has a wider range, so that the water contacts the coal and soaks the coal.

[0029] The present invention provides a method for reducing carbon emissions from combustion in thermal power generation, which is applicable to the above-mentioned device for reducing carbon emissions from combustion in thermal power generation, and comprises the following steps: Step 1: Coal and combustion aid enter from the feed port and fall onto the stirring plate. The motor works to rotate the support shaft and stirring blades to stir the coal and combustion aid. The cylinder extends to drive the movable long rod to move, pull the discharge plate to rotate clockwise, open the discharge port, and let the coal fall into the combustion furnace. Step 2: The water storage chamber, the connecting pipe, and the connecting box form a communicating vessel, and clean water is injected from the top of the connecting box and enters the water storage chamber from the connecting pipe until the liquid level of the water storage chamber and the connecting box is level; Step 3: During the mixing process, the cylinder is extended to move the fixed column upward and push the sealing slide plate upward, so that water is pushed out from the water guide seat and drips onto the coal. The water is stirred by the stirring plate and mixed with the coal, so that the coal is soaked and then discharged into the combustion furnace; Step 4: After the coal is soaked, excess water and fine coal are discharged from the filter, fall onto the slag discharge plate, and then flow out from the slag discharge port, reducing the moisture content of the coal and fine coal, and preventing the fine coal from entering the combustion furnace and affecting combustion.

[0030] Working principle: the mixing box 1 is installed at the feed port 101 of the combustion furnace, and the drop port 55 is connected with the feed port 101 of the combustion furnace, so that the coal mixed with the combustion aid and soaked enters the combustion furnace from the drop port 55 for combustion. During operation, the coal and the combustion aid enter from the feed port 101 and fall onto the stirring plate 23. The motor 25 works to realize the rotation of the support shaft 22 and the stirring blade 21 to stir the coal and the combustion aid. During the mixing process, the cylinder 27 is extended to make the fixed column 311 move up and push the sealing slide plate 36 to slide, so that water is pushed out from the water guide seat 37 and dripped onto the coal. After being stirred by the stirring plate 23, the coal is mixed and soaked. During the extension process of the cylinder 27, the movable column is driven to move, and the discharge plate 24 is pulled to rotate clockwise to open the discharge port 28. At this time, part of the mixed coal and The combustion aid falls from the discharge port 28 and is discharged into the thermal power generation combustion furnace. By controlling the cylinder 27 to work and contract, the sealing slide plate 36 is pulled down to reset. Under the action of the two long rods 26, the discharge plate 24 is pushed to rotate clockwise and reset to block the discharge port 28. The stirring blades 21 continue to mix the coal and the combustion aid on the stirring plate 23. In this way, during the stirring process, the coal and the combustion aid are intermittently discharged into the combustion furnace, so that the coal, the combustion aid and the water are stirred and mixed while being discharged, thereby improving the mixing efficiency of the coal and the combustion aid. During the stirring and mixing of the coal, the combustion aid and the water on the stirring plate 23, the excess water after the coal is soaked and the fine coal are discharged from the filter screen 54, fall onto the slag discharge plate 51, and then flow out from the slag discharge port 52, thereby reducing the moisture content of the coal and the fine coal, and preventing the fine coal from entering the combustion furnace and affecting the combustion.

[0031] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A thermal power generation combustion carbon emission reduction device, comprising a mixing box (1), a support base (102) fixed at the upper end of the interior, and a feed port (101) installed at the upper end of the left side of the mixing box (1), characterized in that: A discharge reduction mechanism (2) is installed on the left side inside the mixing box (1), the discharge reduction mechanism (2) comprises a support shaft (22), the support shaft (22) is rotatably connected to the mixing box (1), a plurality of stirring blades (21) are fixed to the support shaft (22), and a stirring plate (23) with an arc structure is fixed inside the mixing box (1), the stirring plate (23); The mixing box (1) is provided with a hole expansion mechanism (3), the hole expansion mechanism (3) comprising a water tank (31), the water tank (31) being fixed on the right side inside the mixing box (1), a sealing slide plate (36) having an arc structure being vertically slidably connected to the middle part inside the water tank (31), the upper end inside the water tank (31) and the sealing slide plate (36) forming a water storage chamber (33), a water guide seat (37) being rotatably installed on one side of the support seat (102), a water inlet (39) being provided on a horizontal section of the water guide seat (37), and a drainage groove (38) being connected to the water inlet (39) being penetrated through the inclined end of the water guide seat (37); The water tank (31) is connected to a heat dissipation mechanism (4) for cooling; A slag discharge mechanism (5) is installed at the bottom end of the left side of the mixing box (1).

2. A thermal power generation combustion carbon emission reduction device according to claim 1, characterized in that: The hole expansion mechanism (3) further comprises a rotating rod (310), the rotating rod (310) being fixedly connected to the central part of the horizontal end of the water guide seat (37), the rotating rod (310) being rotatably connected to the mixing box (1), a plurality of linings (32) distributed in a fan shape being fixed to the lower surface of the sealing slide plate (36), the bottom end of each lining plate (32) being fixed with a central rod (312), a connecting box (34) with an upper end opening being fixed to the right side of the mixing box (1), a connecting pipe (35) connected in an L shape being passed through and fixed to the bottom end of the connecting box (34), the horizontal end of the connecting pipe (35) being fixedly connected to the water tank (31) and being connected to the water storage chamber (33), the upper end of the connecting box (34) being in the same horizontal plane as the top end of the left side of the water tank (31), and a vertically arranged fixing column (311) being fixed to the lower surface of the sealing slide plate (36).

3. A thermal power generation combustion carbon emission reduction device according to claim 2, characterized in that: The rotating rod (310) is connected to a driving assembly (6), the driving assembly (6) comprising a movable block (61), the movable block (61) being fixedly connected to the rotating rod (310) and arranged in a transverse manner, one end of the movable block (61) being rotatably connected to a connecting rod (62), a fixed block (63) being fixed to the upper surface of the sealing slide plate (36), and the lower end of the connecting rod (62) being rotatably connected to the fixed block (63).

4. A thermal power generation combustion carbon emission reduction device according to claim 2, characterized in that: The emission reduction mechanism (2) further comprises a cylinder (27), wherein the cylinder (27) is fixed to the bottom end of the water tank (31), the telescopic end of the cylinder (27) is fixedly connected to the bottom end of the fixed column (311), the left bottom end of the water tank (31) is rotatably connected to a discharge plate (24) with an arc structure, the left end of the discharge plate (24) is in contact with the right side of the stirring plate (23), a motor (25) is fixed to the back of the mixing box (1), the output shaft of the motor (25) is fixedly connected to the end of the support seat (102), and the right side of the discharge plate (24) is rotatably connected to a movable long rod (26), the movable long rod (26) passes through the bottom of the water tank (31) and the upper end is rotatably connected to the telescopic end of the cylinder (27).

5. The device for reducing carbon emissions from thermal power generation according to claim 1, characterized in that: The slag discharge mechanism (5) comprises a filter screen (54) which is fixedly connected to the middle part of the stirring plate (23). A slag discharge plate (51) which is arranged obliquely is fixedly connected to the bottom end of the left side of the mixing box (1). A guide plate (53) which is inclined downward is fixedly connected to the right end of the slag discharge plate (51). A material discharge opening (55) which is wide at the top and narrow at the bottom is formed between the right side of the slag discharge plate (51) and the mixing box (1). A slag discharge opening (52) is connectedly connected to the left side of the bottom end of the mixing box (1). The bottom end of the slag discharge plate (51) extends out of the left side of the slag discharge opening (52).

6. The device for reducing carbon emissions from thermal power generation according to claim 1, characterized in that: The heat dissipation mechanism (4) comprises a heat sink (41), the heat sink (41) being fixedly connected to the mixing box (1) and extending into the water storage chamber (33) of the water tank (31), the other end of the heat sink (41) extending out of the back of the mixing box (1), the back of the mixing box (1) being rotatably connected to a rotating shaft (44), the end of the rotating shaft (44) being fixed with a stirring blade (43), the stirring blade (43) being located on the right side of the heat sink (41).

7. A thermal power generation combustion carbon emission reduction device according to claim 6, characterized in that: The heat dissipation mechanism (4) further comprises a rotating plate (46), wherein the rotating plate (46) is fixed to the end of the rotating rod (310), a belt (42) is connected between the rotating shaft (44) and the outside of the supporting shaft (22), and a connecting rod (45) is rotatably connected to the outer surface of the stirring blade (43), and one end of the connecting rod (45) is rotatably connected to the lower end of the rotating plate (46).

8. A method for reducing carbon emissions from combustion in thermal power generation, the method being applicable to a thermal power generation combustion carbon emission reduction device as described in any one of claims 1 to 7, characterized in that: It includes the following steps: Step 1: Coal and combustion aid enter from the feed port and fall onto the stirring plate. The motor works to rotate the support shaft and stirring blades to stir the coal and combustion aid. The cylinder extends to drive the movable long rod to move, pull the discharge plate to rotate clockwise, open the discharge port, and let the coal fall into the combustion furnace. Step 2: The water storage chamber, the connecting pipe, and the connecting box form a communicating vessel, and clean water is injected from the top of the connecting box and enters the water storage chamber from the connecting pipe until the liquid level of the water storage chamber and the connecting box is level; Step 3: During the mixing process, the cylinder is extended to move the fixed column upward and push the sealing slide plate upward, so that water is pushed out from the water guide seat and drips onto the coal. The water is stirred by the stirring plate and mixed with the coal, so that the coal is soaked and then discharged into the combustion furnace; Step 4: After the coal is soaked, excess water and fine coal are discharged from the filter, fall onto the slag discharge plate, and then flow out from the slag discharge port, reducing the moisture content of the coal and fine coal, and preventing the fine coal from entering the combustion furnace and affecting combustion.

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