Low-emission combustion chamber with sufficient combustion

Abstract

The invention relates to the technical field of boilers, in particular to a sufficient-combustion low-emission combustion chamber which comprises a combustion furnace and a feeding mechanism. According to the low-emission combustion chamber capable of achieving sufficient combustion, a driving motor can drive a second belt wheel to rotate, after the second belt wheel rotates, an auger can be driven to rotate, coal can be conveyed through the auger, meanwhile, after the second belt wheel rotates, a straight gear can be driven to rotate, and through meshing transmission of the straight gear and an outer gear disc, the combustion efficiency is improved. Therefore, the auger is used for pushing coal to be conveyed, meanwhile, the conveying pipe rotates to drive the three sets of material throwing pipes to rotate synchronously, the coal is evenly scattered on fire grates at the front end, the middle end and the tail end of the combustion chamber through centrifugal force generated by rotation of the three sets of material throwing pipes, and due to the design, the temperature of all areas of the combustion chamber tends to be balanced. The combustion stability is obviously improved, and the phenomenon of insufficient combustion caused by local high temperature or low temperature is avoided.

Description

Technical Field

[0001] This application relates to the field of boiler technology, and in particular to a low-emission combustion chamber with complete combustion. Background Technology

[0002] As a core component of a boiler, the combustion chamber's combustion efficiency and pollutant emissions directly affect the boiler's overall performance and environmental indicators. In recent years, with increasingly stringent environmental regulations, reducing nitrogen oxide (NOx) emissions has become a key focus of combustion technology research.

[0003] Traditional boiler combustion methods mostly use a chain grate to transport coal to the boiler's combustion chamber, with a burner at one end of the chamber to ignite the coal. However, this method has the following drawbacks: When using a chain grate to transport coal, the coal accumulates on the grate. At the coal inlet end of the grate, the coal is just beginning to enter the combustion chamber and has not yet been fully ignited, resulting in a relatively low temperature. As the coal is transported to the middle of the combustion chamber, it is fully combusted, releasing a large amount of heat, causing the temperature in that area to reach its peak. At the end of the grate, due to the large amount of coal burned, the temperature in that area remains relatively low. This temperature gradient along the length of the grate not only affects the stability of combustion but may also lead to incomplete combustion, increasing emissions of carbon monoxide (CO) and unburned hydrocarbons (UHC), while also affecting the formation of nitrogen oxides (NOx).

[0004] Therefore, this application provides a low-emission combustion chamber with complete combustion. Summary of the Invention

[0005] The purpose of this application is to solve at least one technical problem raised in the background art.

[0006] This application provides a low-emission combustion chamber with complete combustion, including a combustion furnace and a feeding mechanism. The combustion furnace includes a base, an insulating shell fixedly installed on the upper surface of the base, and a steam drum disposed inside the insulating shell. The combustion chamber is disposed inside the base, and a grate is disposed inside the combustion chamber. The feeding mechanism is disposed on the right side of the combustion furnace and includes a storage frame, a conveying pipe rotatably installed on the left end of the storage frame, and an auger rotatably installed inside the conveying pipe. One end of the auger extends into the interior of the storage frame. A material anti-blocking mechanism is disposed inside the storage frame, and a drive mechanism for driving the material anti-blocking mechanism and the auger to rotate is disposed on the right end of the storage frame.

[0007] By adopting the above technical solution, the base 101 is made of high-temperature resistant alloy steel and has a combustion chamber 104 inside. The bottom of the base 101 is reserved with an ash collection port and an air inlet for regular cleaning. The heat insulation shell 102 is fixed to the upper surface of the base 101. The heat insulation shell 102 is made of multiple layers of ceramic fiber board and metal sandwich, and the outer layer is sprayed with a high-temperature resistant coating to ensure that heat does not leak out. The steam drum 103 is located inside the heat insulation shell 102. The steam and water are separated through the downcomer and the water-cooled wall tube. The screw conveyor is used to transport coal in the combustion chamber. The first electric heating tube and the second electric heating tube generate high temperature through resistance heating to directly preheat and ignite the coal.

[0008] Preferably, the right end of the heat-insulating shell is provided with a through hole, the left end of the conveying pipe passes through the through hole and is rotatably connected to the inner left side wall of the combustion chamber, and the surface of the conveying pipe is provided with three sets of throwing pipes in a circumferential array.

[0009] By adopting the above technical solution, the storage frame is used to store coal fuel. When the auger rotates, it can drive the rotating auger to transport the coal in the storage frame to the conveying pipe.

[0010] Preferably, one end of the ejector pipe is connected to the interior of the conveyor pipe, and all three sets of conveyor pipes are located inside the combustion chamber.

[0011] By adopting the above technical solution, when the auger rotates and transports the coal into the conveying pipe, the coal in the conveying pipe will be discharged into the combustion chamber along the throwing pipe and fall onto the grate. Then, the first electric heating tube and the second electric heating tube will be powered on simultaneously to preheat the coal so that the surface temperature of the coal reaches the ignition point.

[0012] Preferably, the material anti-clogging mechanism includes a connecting shaft rotatably mounted on the inner wall of the storage frame, and three sets of stirring rods fixedly mounted on the surface of the connecting shaft in a circumferential array, with the connecting shaft located directly above the auger.

[0013] By adopting the above technical solution, when the connecting shaft rotates, it can drive the three sets of stirring rods to rotate synchronously, thereby avoiding coal blockage in the storage box and preventing coal from falling onto the auger.

[0014] Preferably, the driving mechanism includes a first pulley rotatably mounted on the right end of the storage frame, one end of the auger extending to the right end of the storage frame and fixedly mounted with a second pulley, a motor for driving the second pulley to rotate fixedly mounted on the right end of the storage frame, and the first pulley and the second pulley are connected by belt drive, and the left end of the first pulley is fixedly connected to the right end of the connecting shaft.

[0015] By adopting the above technical solution, the drive motor can drive the second pulley to rotate. When the second pulley rotates, it can drive the auger to rotate, thereby using the auger to transport coal. At the same time, after the second pulley rotates, the connecting shaft can be driven to rotate by the belt transmission.

[0016] Preferably, the left end of the connecting shaft extends to the outside of the storage frame and is fixedly installed with a spur gear, and an external gear disk is fixedly installed on the outer surface of the conveying pipe, and the spur gear meshes with the external gear disk for transmission.

[0017] By adopting the above technical solution, when the connecting shaft rotates, it will drive the spur gear to rotate. The spur gear meshes with the external gear disc, which in turn drives the conveying pipe to rotate. Since the conveying pipe is driven by the meshing of the spur gear and the external gear disc, the conveying pipe rotates in the opposite direction to the auger. Therefore, the auger can continue to push the coal for conveying. At the same time, when the conveying pipe rotates, it will drive the three sets of throwing pipes to rotate synchronously. Therefore, the centrifugal force generated by the rotation of the three sets of throwing pipes can be used to evenly spread the coal on the front, middle and end grates of the combustion chamber, thereby avoiding the defect of uneven temperature after coal combustion caused by coal accumulation.

[0018] Preferably, the grate consists of a first electric heating tube fixedly installed on the inner wall of the combustion chamber, a groove formed in the inner wall of the combustion chamber, a second electric heating tube slidably fitted on the inner wall of the groove, and a plurality of L-shaped push rods fixedly installed at equal intervals on the upper surface of the second electric heating tube.

[0019] Preferably, the first electric heating tube and the second electric heating tube are a set of grates, and multiple sets of grates are equidistantly arranged inside the combustion chamber.

[0020] Preferably, heat insulation covers are fixedly installed on both sides of the base, the two ends of the second electric heating tube are respectively located inside the two heat insulation covers, and the grate is located directly below the conveying pipe.

[0021] By adopting the above technical solution, the heat insulation cover can protect the first and second electric heating tubes on the one hand, and prevent the temperature in the combustion chamber from being lost along the slide groove on the other hand.

[0022] Preferably, a cylinder is fixedly installed on the left side of the insulation cover at the left end of the base, the telescopic end of the cylinder extends into the interior of the insulation cover and is fixedly installed with a connecting plate, and the left end of the second electric heating tube is fixedly connected to the right side of the connecting plate.

[0023] By adopting the above technical solution, when the coal falls onto the grate and burns for a period of time, the drive cylinder can drive the connecting plate to move synchronously. The connecting plate can drive the second electric heating tube to move. At this time, the L-shaped pusher on the second electric heating tube pushes the coal, thereby agitating the coal ash and causing the burned coal ash to be discharged into the ash collection port along the gap between the first and second electric heating tubes.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. The low-emission combustion chamber with complete combustion described in this application, by setting up a combustion furnace and a drive mechanism, allows the drive motor to drive the second pulley to rotate. When the second pulley rotates, it drives the auger to rotate, thereby using the auger to transport coal. At the same time, the rotation of the second pulley, through the belt drive, drives the connecting shaft to rotate. When the connecting shaft rotates, it drives the spur gear to rotate. Through the meshing transmission between the spur gear and the external gear disc, it drives the conveying pipe to rotate. Therefore, while the auger pushes the coal to be transported, the rotation of the conveying pipe drives the three sets of throwing pipes to rotate synchronously. The centrifugal force generated by the rotation of the three sets of throwing pipes evenly spreads the coal on the grate at the front, middle and end of the combustion chamber. This design completely solves the temperature gradient problem caused by coal accumulation in traditional chain grates, making the temperature in each area of ​​the combustion chamber more uniform, significantly improving combustion stability, and avoiding incomplete combustion caused by local high or low temperatures.

[0026] 2. The low-emission combustion chamber with complete combustion described in this application, when the motor rotates, can drive the connecting shaft to rotate by the belt drive. When the connecting shaft rotates, it can drive the three sets of stirring rods to rotate synchronously, thereby avoiding coal blockage in the middle of the storage box, which would prevent the coal from falling onto the auger. Combined with the continuous conveying of the auger, it ensures that the feeding process is smooth and uninterrupted, avoiding the combustion interruption or efficiency reduction problem caused by blockage in traditional feeding methods.

[0027] 3. The low-emission combustion chamber with complete combustion described in this application, by setting up a grate, after the coal is evenly spread on the front, middle and end grates of the combustion chamber and burned for a period of time, the drive cylinder can drive the connecting plate to move synchronously. The connecting plate can drive the second electric heating tube to move. At this time, the L-shaped pusher rod on the second electric heating tube pushes the coal, thereby agitating the coal ash, so that the burned coal ash is discharged into the ash collection port along the gap between the first electric heating tube and the second electric heating tube. Through uniform feeding and dynamic ash agitation, the coal burns more completely, reducing the generation of unburned hydrocarbons (UHC) and carbon monoxide (CO). At the same time, the stable combustion environment suppresses the peak generation of nitrogen oxides (NOx). Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of an embodiment of this application;

[0029] Figure 2 This is a three-dimensional structural diagram of an embodiment of this application after the thermal insulation shell has been removed;

[0030] Figure 3 This is a three-dimensional structural diagram of an embodiment of this application after the steam drum has been removed;

[0031] Figure 4 This is a cross-sectional structural diagram of an embodiment of this application;

[0032] Figure 5 yes Figure 2 Enlarged structural diagram at point A in the middle;

[0033] Figure 6 This is a three-dimensional structural diagram of the material conveying pipe according to an embodiment of this application;

[0034] Figure 7 yes Figure 4 Enlarged structural diagram at point B.

[0035] Explanation of reference numerals in the attached figures:

[0036] 100. Combustion furnace; 101. Base; 102. Insulation shell; 103. Steam drum; 104. Combustion chamber;

[0037] 200. Grate; 201. First electric heating element; 202. Second electric heating element; 203. L-shaped pusher rod; 204. Insulation cover; 205. Cylinder; 206. Connecting plate;

[0038] 300. Feeding mechanism; 301. Storage frame; 302. Conveying pipe; 303. Screw conveyor; 304. Discharge pipe;

[0039] 400. Material anti-blocking mechanism; 401. Connecting shaft; 402. Stirring rod;

[0040] 500, drive mechanism; 501, first pulley; 502, second pulley; 503, motor; 504, belt; 505, spur gear; 506, external gear disc. Detailed Implementation

[0041] The following combination Figures 1 to 7 This application will be described in further detail below.

[0042] Example 1

[0043] Please refer to the following carefully. Figure 1 , Figure 2 and Figure 4A low-emission combustion chamber with complete combustion includes a combustion furnace 100 and a feeding mechanism 300. The combustion furnace 100 includes a base 101, an insulation shell 102 fixedly installed on the upper surface of the base 101, and a steam drum 103 disposed inside the insulation shell 102. The combustion chamber 104 is disposed inside the base 101, and a grate 200 is disposed inside the combustion chamber 104. The feeding mechanism 300 is disposed on the right side of the combustion furnace 100 and includes a storage frame 301, a conveying pipe 302 rotatably installed on the left end of the storage frame 301, and an auger 303 rotatably installed inside the conveying pipe 302, with one end of the auger 303 extending into the interior of the storage frame 301.

[0044] Specifically, the base 101 is made of high-temperature resistant alloy steel and has a combustion chamber 104 inside. The bottom of the base 101 has a reserved ash collection port and an air inlet for regular cleaning. The heat insulation shell 102 is fixed to the upper surface of the base 101. The heat insulation shell 102 is made of multiple layers of ceramic fiber board and metal sandwich, and the outer layer is sprayed with a high-temperature resistant coating to ensure that heat does not leak out. The steam drum 103 is located inside the heat insulation shell 102 and achieves steam-water circulation separation through downcomer and water-cooled wall tube. The screw conveyor 303 is used to transport coal in the combustion chamber 104.

[0045] Please refer to this carefully. Figure 4 and Figure 6 The right end of the heat-insulating shell 102 has a through hole, the left end of the conveying pipe 302 passes through the through hole and is rotatably connected to the inner left side wall of the combustion chamber 104, and the surface of the conveying pipe 302 has three sets of throwing pipes 304 arranged in a circumferential array.

[0046] Specifically, the storage frame 301 is used to store coal fuel. When the auger 303 rotates, it can drive the rotating auger 303 to transport the coal in the storage frame 301 to the conveying pipe 302.

[0047] Please refer to this carefully. Figure 3 , Figure 4 and Figure 7 One end of the throwing pipe 304 is connected to the interior of the conveying pipe 302. All three sets of conveying pipes 302 are located inside the combustion chamber 104. The grate 200 consists of a first electric heating tube 201 fixedly installed on the inner wall of the combustion chamber 104, a sliding groove opened on the inner wall of the combustion chamber 104, a second electric heating tube 202 slidably fitted on the inner wall of the sliding groove, and multiple L-shaped push rods 203 fixedly installed at equal intervals on the upper surface of the second electric heating tube 202. The first electric heating tube 201 and the second electric heating tube 202 form a grate 200, and multiple sets of grates 200 are equidistantly arranged inside the combustion chamber 104.

[0048] Specifically, the size and angle of each set of throwing pipes 304 need to be designed according to the throwing range of coal fuel and the size of the combustion chamber 104 to ensure that the coal fuel can be evenly thrown into the combustion chamber 104. The first electric heating tube 201 and the second electric heating tube 202 are both made of high-temperature alloy steel with a tensile strength ≥500 MPa and a temperature resistance ≥1200℃. The surface is coated with a ceramic coating to resist high-temperature corrosion. The grate 200 is designed as a multi-set parallel structure, with each grate 200 bearing a weight ≤50kg. The first electric heating tube 201 and the second electric heating tube 202 generate high temperature through resistance heating to directly preheat and ignite the coal. When the auger 303 rotates and transports the coal into the conveying pipe 302, the coal in the conveying pipe 302 will be discharged into the combustion chamber 104 along the throwing pipe 304 and fall onto the grate 200. Then, the first electric heating tube 201 and the second electric heating tube 202 are energized at the same time to preheat the coal so that the surface temperature of the coal reaches the ignition point.

[0049] Please refer to this carefully. Figure 3 and Figure 4 The storage frame 301 is equipped with a material anti-blocking mechanism 400. The material anti-blocking mechanism 400 includes a connecting shaft 401 rotatably installed on the inner wall of the storage frame 301, and three sets of stirring rods 402 fixedly installed on the surface of the connecting shaft 401 in a circumferential array. The connecting shaft 401 is located directly above the auger 303.

[0050] Specifically, when the connecting shaft 401 rotates, it can drive the three sets of stirring rods 402 to rotate synchronously. The three sets of stirring rods 402 can stir the coal, thereby preventing the coal from clogging in the middle of the storage frame 301 and preventing the coal from falling into the auger 303.

[0051] Please refer to this carefully. Figure 2 Figure 4 and Figure 5 The right end of the storage frame 301 is provided with a drive mechanism 500 for driving the material anti-blocking mechanism 400 and the auger 303 to rotate. The drive mechanism 500 includes a first pulley 501 rotatably installed at the right end of the storage frame 301. One end of the auger 303 extends to the right end of the storage frame 301 and is fixedly installed with a second pulley 502. The right end of the storage frame 301 is fixedly installed with a motor 503 for driving the second pulley 502 to rotate. The first pulley 501 and the second pulley 502 are connected by a belt 504. The left end of the first pulley 501 is fixedly connected to the right end of the connecting shaft 401.

[0052] Specifically, the drive motor 503 can drive the second pulley 502 to rotate. When the second pulley 502 rotates, it can drive the auger 303 to rotate, so that the auger 303 can be used to transport coal. At the same time, after the second pulley 502 rotates, the connecting shaft 401 can be driven to rotate by the transmission of the belt 504.

[0053] Please refer to this carefully. Figure 1 and Figure 4 The left end of the connecting shaft 401 extends to the outside of the storage frame 301 and is fixedly installed with a spur gear 505. An external gear disk 506 is fixedly installed on the outer surface of the conveying pipe 302, and the spur gear 505 meshes with the external gear disk 506 for transmission.

[0054] Specifically, when the connecting shaft 401 rotates, it drives the spur gear 505 to rotate. The spur gear 505 meshes with the external gear disk 506, which in turn drives the conveying pipe 302 to rotate. Since the conveying pipe 302 is driven by the meshing of the spur gear 505 and the external gear disk 506, the conveying pipe 302 and the auger 303 rotate in opposite directions. Therefore, the auger 303 can continue to push the coal for conveying. The speed of the auger 303 is higher than that of the conveying pipe 302, ensuring that the coal forms a positive thrust in the conveying pipe 302. At the same time, when the conveying pipe 302 rotates, it drives the three sets of throwing pipes 304 to rotate synchronously. Therefore, the centrifugal force generated by the rotation of the three sets of throwing pipes 304 can be used to evenly spread the coal on the front, middle and end grate 200 of the combustion chamber 104, thereby avoiding the defect of uneven temperature after coal combustion caused by coal accumulation.

[0055] The working principle of this embodiment is as follows: Coal fuel is poured into the storage frame 301 for storage. Then, the drive motor 503 drives the second pulley 502 to rotate. When the second pulley 502 rotates, it drives the auger 303 to rotate, thus using the rotating auger 303 to transport the coal. At the same time, after the second pulley 502 rotates, the connecting shaft 401 is driven to rotate by the transmission of the belt 504. When the connecting shaft 401 rotates, it drives the spur gear 505 to rotate. The spur gear 505 meshes with the external gear disk 506, thus driving the conveying pipe 302 to rotate. Since the conveying pipe 302 is driven by the meshing transmission of the spur gear 505 and the external gear disk 506, the conveying pipe 302 and the auger 303 rotate in opposite directions. Therefore, the auger 303 can continue to push the coal for transport, while the conveying pipe 302 rotates... When in motion, the three sets of throwing pipes 304 rotate synchronously. Therefore, the centrifugal force generated by the rotation of the three sets of throwing pipes 304 can be used to evenly spread the coal on the grate 200 at the front, middle and end of the combustion chamber 104, thereby avoiding the defect of uneven temperature after coal combustion caused by coal accumulation. On the other hand, the rotation of the connecting shaft 401 can drive the three sets of stirring rods 402 to rotate synchronously, thereby avoiding coal blockage in the middle of the storage frame 301. Combined with the continuous conveying of the auger 303, the feeding process is ensured to be smooth and uninterrupted, avoiding the combustion interruption or efficiency reduction problem caused by blockage in the traditional feeding method. This design completely solves the temperature gradient problem caused by coal accumulation in the traditional chain grate 200, making the temperature of each area of ​​the combustion chamber 104 more uniform, significantly improving the combustion stability, and avoiding incomplete combustion caused by local high or low temperature.

[0056] Example 2

[0057] Compared with Embodiment 1, another implementation of this application is as follows:

[0058] Please refer to this carefully. Figure 4 The base 101 has heat insulation covers 204 fixedly installed on both sides. The two ends of the second electric heating tube 202 are respectively inside the two heat insulation covers 204, and the grate 200 is directly below the material conveying pipe 302.

[0059] Specifically, the heat insulation cover 204 is made of multiple layers of ceramic fiber board and stainless steel sandwich, with the outer layer sprayed with a high-temperature resistant ceramic coating. The slide groove is sealed with a high-temperature resistant silicone sealant (temperature resistance ≥800℃) to ensure that heat does not leak out. The heat insulation cover 204 can protect the first electric heating tube 201 and the second electric heating tube 202 on the one hand, and prevent the temperature in the combustion chamber 104 from being lost along the slide groove on the other hand.

[0060] Please refer to this carefully. Figure 4 A cylinder 205 is fixedly installed on the left side of the insulation cover 204 at the left end of the base 101. The telescopic end of the cylinder 205 extends into the interior of the insulation cover 204 and is fixedly installed with a connecting plate 206. The left end of the second electric heating tube 202 is fixedly connected to the right side of the connecting plate 206.

[0061] Specifically, the connection points of the first electric heating tube 201 and the second electric heating tube 202 use high-temperature ceramic insulated terminals (temperature resistance ≥1000℃), and the wires are high-temperature resistant silicone wires (temperature resistance ≥200℃), and are fixed by spring clips to ensure that they will not loosen during the reciprocating motion of the cylinder 205. When the coal falls onto the grate 200 and burns for a period of time, the driving cylinder 205 can drive the connecting plate 206 to move synchronously. The connecting plate 206 can drive the second electric heating tube 202 to move. At this time, the L-shaped pusher rod 203 on the second electric heating tube 202 pushes the coal, thereby agitating the coal ash, so that the burned coal ash is discharged into the ash collection port along the gap between the first electric heating tube 201 and the second electric heating tube 202.

[0062] The working principle of this embodiment is as follows: When the coal falls onto the grate 200, it can be lifted. After the coal burns on the grate 200 for a period of time, the drive cylinder 205 can drive the connecting plate 206 to move synchronously. The connecting plate 206 can drive the second electric heating tube 202 to move. At this time, the L-shaped pusher rod 203 on the second electric heating tube 202 stirs the coal ash, so that the burnt coal ash is discharged into the ash collection port along the gap between the first electric heating tube 201 and the second electric heating tube 202. Through uniform feeding and dynamic ash stirring, the coal burns more completely, reducing the generation of unburned hydrocarbons (UHC) and carbon monoxide (CO). At the same time, the stable combustion environment suppresses the peak generation of nitrogen oxides (NOx).

[0063] Operating steps:

[0064] Start feeding mechanism 300

[0065] 1. Start drive motor 503: Start drive motor 503 via control panel or manual switch, its output shaft drives second pulley 502 to rotate;

[0066] 2. Drive the auger 303 to rotate: The second pulley 502 drives the first pulley 501 to rotate through the belt 504, which in turn drives the connecting shaft 401 to rotate. The rotation of the connecting shaft 401 is driven by the meshing of the spur gear 505 and the external gear disk 506, which drives the material conveying pipe 302 to rotate.

[0067] 3. Activate the material anti-blocking mechanism 400: When the connecting shaft 401 rotates, it drives the three sets of stirring rods 402 to rotate synchronously, preventing coal fuel from blocking in the middle of the storage frame 301 and ensuring that the coal fuel falls smoothly into the auger 303;

[0068] 4. Coal fuel conveying: During the rotation of the auger 303, the coal fuel in the storage frame 301 is conveyed to the conveying pipe 302. The conveying pipe 302 rotates in the opposite direction to the auger 303 to ensure that the coal fuel can be effectively pushed.

[0069] Start combustion chamber 104

[0070] 1. Start the grate 200: Start the first electric heating tube 201 and the second electric heating tube 202 through the control panel or manual switch to generate high temperature to preheat and ignite the coal fuel;

[0071] 2. Coal fuel spreading: Under the action of centrifugal force, the coal fuel in the conveying pipe 302 is evenly spread to the grate 200 at the front, middle and end of the combustion chamber 104 through three sets of throwing pipes 304;

[0072] 3. Coal fuel combustion: The coal fuel falling onto the grate 200 is rapidly burned under the high temperature of the first electric heating tube 201 and the second electric heating tube 202, generating heat. Multiple sets of grates 200 are equidistantly arranged inside the combustion chamber 104 to ensure complete combustion of coal fuel and reduce the generation of unburned hydrocarbons (UHC) and carbon monoxide (CO).

[0073] 4. Adjust the feeding speed: Adjust the feeding speed by controlling the speed of the drive motor 503 according to the combustion status and demand to ensure a stable supply of coal fuel;

[0074] 5. Discharging ash: The drive cylinder 205 drives the second electric heating tube 202 to move. At this time, the L-shaped pusher 203 on the second electric heating tube 202 will stir the coal ash, so that the burned coal ash is discharged into the ash collection port along the gap between the first electric heating tube 201 and the second electric heating tube 202.

[0075] shutdown operation

[0076] 1. Stop feeding mechanism 300: When the coal fuel has finished burning or the machine needs to be stopped, first stop the drive motor 503 and stop the operation of the feeding mechanism 300;

[0077] 2. Stop grate 200: After the feeding mechanism 300 has completely stopped, stop the operation of grate 200 to ensure safe shutdown of the equipment;

[0078] 3. Cleaning ash and slag: Regularly clean the ash and slag inside the combustion chamber 104 through the ash and slag collection port to keep the equipment clean and in normal operation.

Claims

1. A low-emission combustion chamber with complete combustion, characterized in that, include: The combustion furnace (100) includes a base (101), an insulation shell (102) fixedly installed on the upper surface of the base (101), and a steam drum (103) disposed inside the insulation shell (102). The base (101) is provided with a combustion chamber (104), and the combustion chamber (104) is provided with a grate (200). The feeding mechanism (300) is located on the right side of the combustion furnace (100) and includes a storage frame (301), a conveying pipe (302) rotatably installed on the left end of the storage frame (301), and an auger (303) rotatably installed inside the conveying pipe (302). One end of the auger (303) extends into the interior of the storage frame (301). The storage frame (301) is provided with a material anti-blocking mechanism (400). The right end of the storage frame (301) is provided with a drive mechanism (500) for driving the material anti-blocking mechanism (400) and the auger (303) to rotate.

2. The low-emission combustion chamber with complete combustion according to claim 1, characterized in that, The right end of the heat-insulating shell (102) is provided with a through hole, the left end of the conveying pipe (302) passes through the through hole and is rotatably connected to the inner left side wall of the combustion chamber (104), and the surface of the conveying pipe (302) is provided with three sets of throwing pipes (304) in a circumferential array.

3. The low-emission combustion chamber with complete combustion according to claim 2, characterized in that, One end of the throwing pipe (304) is connected to the interior of the conveying pipe (302), and all three sets of conveying pipes (302) are located inside the combustion chamber (104).

4. The low-emission combustion chamber with complete combustion according to claim 1, characterized in that, The material anti-blocking mechanism (400) includes a connecting shaft (401) rotatably mounted on the inner wall of the storage frame (301), and three sets of stirring rods (402) fixedly mounted on the surface of the connecting shaft (401) in a circumferential array. The connecting shaft (401) is located directly above the auger (303).

5. A low-emission combustion chamber with complete combustion according to claim 4, characterized in that, The drive mechanism (500) includes a first pulley (501) rotatably mounted on the right end of the storage frame (301), one end of the auger (303) extends to the right end of the storage frame (301) and is fixedly mounted with a second pulley (502), a motor (503) for driving the second pulley (502) to rotate is fixedly mounted on the right end of the storage frame (301), and the first pulley (501) and the second pulley (502) are connected by a belt (504), and the left end of the first pulley (501) is fixedly connected to the right end of the connecting shaft (401).

6. The low-emission combustion chamber with complete combustion according to claim 4, characterized in that, The left end of the connecting shaft (401) extends to the outside of the storage frame (301) and is fixedly installed with a spur gear (505). An external gear disk (506) is fixedly installed on the outer surface of the conveying pipe (302), and the spur gear (505) meshes with the external gear disk (506) for transmission.

7. A low-emission combustion chamber with complete combustion according to claim 6, characterized in that, The grate (200) consists of a first electric heating tube (201) fixedly installed on the inner wall of the combustion chamber (104), a groove opened on the inner wall of the combustion chamber (104), a second electric heating tube (202) slidably fitted on the inner wall of the groove, and a plurality of L-shaped push rods (203) fixedly installed at equal intervals on the upper surface of the second electric heating tube (202).

8. A low-emission combustion chamber with complete combustion according to claim 7, characterized in that, The first electric heating tube (201) and the second electric heating tube (202) form a grate (200), and multiple grate sets (200) are equidistantly arranged inside the combustion chamber (104).

9. A low-emission combustion chamber with complete combustion according to claim 7, characterized in that, The base (101) is fixedly installed with heat insulation covers (204) on both sides. The two ends of the second electric heating tube (202) are respectively inside the two heat insulation covers (204), and the grate (200) is directly below the material conveying pipe (302).

10. A low-emission combustion chamber with complete combustion according to claim 9, characterized in that, A cylinder (205) is fixedly installed on the left side of the insulation cover (204) at the left end of the base (101). The telescopic end of the cylinder (205) extends into the interior of the insulation cover (204) and is fixedly installed with a connecting plate (206). The left end of the second electric heating tube (202) is fixedly connected to the right side of the connecting plate (206).

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