A special boiler with automatic feeding and discharging

Abstract

This invention discloses a special boiler with automatic feeding and discharging, belonging to the field of special boiler technology. It includes a furnace body mechanism for heating external hot water, and a ash removal mechanism for discharging combustion residue and a feeding mechanism for feeding solid fuel. This invention achieves quantitative and automatic delivery of solid fuel through the feeding motor and feeding blades of the feeding mechanism, ensuring uniform fuel distribution within the combustion chamber. The ash removal mechanism can periodically clean combustion residue, preventing fuel accumulation from affecting combustion efficiency. The furnace body mechanism adopts a zoned ring plate design, dividing the water circulation into an external cold water zone, an external hot water zone, an internal cold water zone, an internal hot water zone, and a makeup water zone. High-efficiency heat exchange is achieved through double-layer heating pipes. After entering through the inlet pipe, the cold water undergoes zoned heating, improving heating speed and thermal energy utilization. The ash removal mechanism uses a lifting ash-discharging plate and an external mesh structure, allowing the combustion residue to be automatically dumped and discharged from the ash outlet.

Description

Technical Field

[0001] This invention relates to the field of special boiler technology, and in particular to a special boiler with automatic feeding and discharging. Background Technology

[0002] Boilers, as common heat energy conversion devices, are widely used in industrial production and daily life to provide hot water or steam. Traditional boilers typically employ fixed combustion chambers and manual feeding / discharging methods, resulting in inconvenient fuel addition, difficult cleaning of combustion residue, and low thermal efficiency. Especially in the field of special boilers, the requirements for automation, heat exchange efficiency, and combustion residue handling are even higher, and traditional boiler structures struggle to meet these demands. While some existing boilers utilize automatic feeding mechanisms, they still suffer from the following shortcomings: the fuel accumulation method in traditional combustion chambers easily leads to uneven combustion, and untimely residue cleaning affects subsequent combustion efficiency; ordinary boilers have a simple heat exchange structure and an unreasonable hot and cold water circulation path design, resulting in slow heating speed and high energy consumption; combustion residue usually requires manual cleaning, which is not only labor-intensive but also poses safety hazards in high-temperature environments; some boilers lack effective water level monitoring and automatic water replenishment mechanisms, making them prone to affecting heating performance or causing safety issues due to abnormal water levels. Therefore, there is an urgent need for a special boiler capable of automatic feeding / discharging, efficient heat exchange, and convenient ash removal to improve combustion efficiency, reduce energy consumption, and minimize manual intervention. Summary of the Invention

[0003] To address the aforementioned technical problems, the present invention adopts the following technical solution: a special boiler with automatic feeding and discharging, comprising a furnace body mechanism for heating external hot water, the furnace body mechanism comprising an outer furnace body, and the furnace body mechanism being provided with a slag discharge mechanism for discharging combustion residue and a feeding mechanism for feeding solid fuel.

[0004] The furnace body mechanism includes a lower plate fixedly installed on the outer furnace body. A partition ring plate is fixedly installed on the lower plate. The lower surface of the partition ring plate is divided into five areas: an outer cold water area, an outer hot water area, an inner cold water area, an inner hot water area, and a water replenishment area. The lower plate is provided with multiple outer water holes, outer double water holes, inner double water holes, inner water holes, and water replenishment holes. The outer water holes are located below the outer cold water area, the outer double water holes are located below the outer hot water area, the inner double water holes are located below the inner cold water area, the inner water holes are located below the inner hot water area, and the water replenishment holes are located below the inner hot water area. A lower plate is fixedly installed below the outer furnace body.

[0005] Furthermore, the furnace body mechanism also includes an upper cover fixedly installed on the partition ring plate, on which a water supply pipe is fixedly installed. The water supply pipe is located above the inner hot water zone and is equipped with a water supply cap.

[0006] Furthermore, multiple heating tubes are fixedly installed on the lower plate. The heating tubes are divided into inner and outer sides. One end of the heating tube on the outer side is connected to the outer water hole, and the other end is connected to the outer second water hole. One end of the heating tube on the inner side is connected to the inner second water hole, and the other end is connected to the inner water hole.

[0007] Furthermore, multiple cold water pipes and hot water pipes are fixedly installed on the partition ring plate. The cold water pipes are connected to the external cold water zone and the internal cold water zone, and the hot water pipes are connected to the external hot water zone and the internal hot water zone. An inlet ring and an outlet ring are fixedly installed on the partition ring plate. Multiple holes are provided on the inlet ring and the outlet ring. The holes of the inlet ring are connected to the top of the cold water pipe, and the holes of the outlet ring are connected to the top of the hot water pipe. An inlet pipe is fixedly installed on the inlet ring, and an outlet pipe is fixedly installed on the outlet ring. The inlet pipe and the outlet pipe are fixedly installed on the top cover. The inlet pipe is connected to the external cold water inlet pipe, and the outlet pipe is connected to the external hot water pipe.

[0008] Furthermore, a liquid level observation plate is fixedly installed on the outer furnace body, and the liquid level observation plate is made of transparent glass.

[0009] Before use, open the water inlet cover and let water flow into the water inlet pipe. The water enters the water inlet area and then flows through the water inlet hole into the space between the outer furnace body, the isolation shell, and the lower plate. The water level can be observed through the liquid level observation plate. Immerse the heating tube in the water.

[0010] Cold water requiring heating enters the inlet pipe, then the inlet ring, and then through the holes in the inlet ring into the cold water pipe. The cold water then flows through the cold water pipe into the outer and inner cold water zones, and then through the outer and inner water holes into the heating pipe below. Through fuel combustion within the isolation shell, the water between the outer furnace body, the isolation shell, and the lower plate is heated to boiling, thus heating the water in the heating pipe. The heated water in the heating pipe flows through the outer and inner water holes into the outer and inner hot water zones, then into the hot water pipe, and finally into the outlet ring. The heated water then enters the outlet pipe, through which hot water is output as hot water.

[0011] Furthermore, the slag discharge mechanism includes a lower cylinder fixedly installed below the lower plate, a bottom cylinder fixedly installed below the lower cylinder, a maintenance plate slidably installed on the bottom cylinder, multiple outer lifting cylinders fixedly installed inside the lower cylinder, an inner sliding column slidably installed inside the outer lifting cylinder, a lifting box fixedly installed below the inner sliding column, a connecting frame fixedly installed on the lifting box, an air intake ring fixedly installed on the lower cylinder, an inner support fixedly installed inside the air intake ring, multiple vertical grooves provided on the inner support, and a bottom electric cylinder fixedly installed inside the bottom cylinder, with the output end of the bottom electric cylinder fixedly installed to the lifting box.

[0012] Furthermore, a slag-discharging motor is fixedly installed on the lifting box, and a lead screw is rotatably installed inside the lifting box. The lead screw is fixedly installed with the motor shaft of the slag-discharging motor. An internal threaded block is slidably installed inside the lifting box, and the internal threaded block and the lead screw form a threaded transmission. A slag-discharging plate is rotatably installed on the lifting box, and a lower connecting rod is rotatably installed below the slag-discharging plate. The lower connecting rod is rotatably installed with the internal threaded block. An outer net slides below the inner support. In the initial state, the slag-discharging plate supports the outer net, so that the outer net is attached to the lower surface of the inner support.

[0013] Furthermore, the air intake ring is equipped with multiple nozzles, the air intake ring is connected to an external gas pipe, an igniter is installed inside the connecting frame, and a slag outlet is provided below the bottom cylinder.

[0014] When solid fuel enters the inner pocket through the inner pipe and the isolation shell, gas is introduced through the nozzle on the intake ring, and the gas and solid fuel are ignited by the igniter. The vertical groove of the inner pocket is blocked by the horizontal bar of the outer pocket net, so the fuel residue cannot fall out. After the fuel has been burning for a period of time, the fuel in the inner pocket needs to be emptied. At this time, the bottom electric cylinder retracts, which drives the lifting box, connecting frame, and ash-pouring plate to descend. At this time, the ash-pouring plate no longer supports the outer pocket net, and the outer pocket net descends along the inner pocket due to gravity. The inner sliding column slides along the outer lifting cylinder. At this time, the horizontal bar on the outer pocket net no longer blocks the vertical groove of the inner pocket, and the residue in the inner pocket falls out onto the ash-pouring plate. Then, the ash-pouring motor drives the lead screw to rotate, which drives the inner threaded block to slide along the lifting box. The inner threaded block drives the ash-pouring plate to rotate relative to the lifting box through the lower connecting rod. At this time, the ash-pouring plate is tilted with respect to the horizontal plane. The residue on the ash-pouring plate slides along the ash-pouring plate to the ash outlet, and then the residue falls out from the ash outlet.

[0015] Furthermore, the feeding mechanism includes an inner tube fixedly installed inside the partition ring plate, an isolation shell fixedly installed outside the inner tube, a feeding hopper fixedly installed on the inner tube, a feeding motor fixedly installed on the feeding hopper, and feeding blades fixedly installed on the motor shaft of the feeding motor. The feeding blades are rotatably installed with the feeding hopper.

[0016] When in use, solid fuel is placed into the feed hopper. The feed motor rotates, which drives the feed blades to rotate. The rotating feed blades feed the solid fuel into the inner tube in a metered manner. Then, the solid fuel falls into the inner pocket through the inner tube.

[0017] The beneficial effects of this invention compared with the prior art are: (1) This invention achieves quantitative and automatic conveying of solid fuel through the feeding motor and feeding blades of the feeding mechanism, ensuring uniform distribution of fuel in the combustion chamber. The slag discharge mechanism adopts electric cylinder drive and mechanical slag dumping structure, which can clean the combustion residue in a timely manner, avoid fuel accumulation affecting combustion efficiency, and improve the overall thermal efficiency of the boiler; (2) The furnace body mechanism set in this invention adopts a partitioned ring plate design, which divides the water circulation into an external cold water zone, an external hot water zone, an internal cold water zone, an internal hot water zone and a water replenishment zone, and performs efficient heat exchange through internal and external double-layer heating pipes. Cold water enters from the water inlet. After the pipe enters, it is heated in sections and then output through the outlet pipe after rapid heating, which improves the heating speed and thermal energy utilization rate; (3) The slag discharge mechanism set in this invention adopts a lifting slag discharge plate and an outer net structure. The slag after combustion can be automatically dumped and discharged from the slag outlet without manual cleaning, reducing the risk of high temperature operation, while extending the service life of the boiler and reducing maintenance costs; (4) The liquid level observation plate made of transparent glass is installed on the outer furnace body of this invention, which can monitor the water level inside the boiler in real time. Combined with the automatic water replenishment function of the water replenishment pipe, it can effectively prevent dry burning or overflow, and improve the safety and stability of boiler operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the overall structure of the present invention (internal).

[0020] Figure 3 This is a schematic diagram of the furnace body structure of the present invention. Figure 1 .

[0021] Figure 4 This is a schematic diagram of the furnace body structure of the present invention. Figure 2 .

[0022] Figure 5 This is a schematic diagram of the furnace body structure of the present invention. Figure 3 .

[0023] Figure 6 This is a schematic diagram of the furnace body structure of the present invention. Figure 4 .

[0024] Figure 7 This is a schematic diagram of the furnace body structure of the present invention. Figure 5 .

[0025] Figure 8 This is a schematic diagram of the slag discharge mechanism of the present invention. Figure 1 .

[0026] Figure 9 This is a schematic diagram of the slag discharge mechanism of the present invention. Figure 2 .

[0027] Figure 10 This is a schematic diagram of the slag discharge mechanism of the present invention. Figure 3 .

[0028] Figure 11 This is a schematic diagram of the slag discharge mechanism of the present invention. Figure 4 .

[0029] Figure 12 This is a schematic diagram of the feeding mechanism of the present invention. Figure 1 .

[0030] Figure 13 This is a schematic diagram of the feeding mechanism of the present invention. Figure 2 .

[0031] Reference numerals: 101-Outer furnace body; 102-Liquid level observation plate; 103-Water inlet pipe; 104-Water outlet pipe; 105-Upper cover; 106-Water replenishment cover; 107-Water replenishment pipe; 108-Water inlet ring; 109-Water outlet ring; 110-Lower plate; 1101-External water hole; 1102-External two water holes; 1103-Internal two water holes; 1104-Internal water hole; 1105-Water replenishment hole; 111-Cold water pipe; 112-Hot water pipe; 113-Heating pipe; 114-Zoning ring plate; 1141-External cold water zone; 1142-External hot water zone; 1143-Internal cold water zone; 1144- 1145-Water replenishment area; 115-Lower plate; 201-Lower cylinder; 202-Bottom cylinder; 203-Inspection plate; 204-Bottom electric cylinder; 205-Connecting frame; 206-Lifting box; 207-Inner sump; 208-Outer lifting cylinder; 209-Slag discharge motor; 210-Screw rod; 211-Internal threaded block; 212-Lower connecting rod; 213-Slag discharge plate; 214-Outer sump net; 215-Inner sliding column; 216-Air inlet ring; 217-Slag outlet; 301-Inner tube; 302-Isolation shell; 303-Feed hopper; 304-Feeding motor; 305-Feeding blade. Detailed Implementation

[0032] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0033] Example: Reference Figures 1-13 A special boiler with automatic feeding and discharging includes a furnace body mechanism for heating external hot water. The furnace body mechanism includes an outer furnace body 101. The furnace body mechanism is provided with a slag discharge mechanism for discharging combustion residue and a feeding mechanism for feeding solid fuel.

[0034] The furnace body mechanism includes a lower plate 110 fixedly installed on the outer furnace body 101. A partition ring plate 114 is fixedly installed on the lower plate 110. The lower surface of the partition ring plate 114 is divided into five areas: an outer cold water area 1141, an outer hot water area 1142, an inner cold water area 1143, an inner hot water area 1144, and a water replenishment area 1145. The lower plate 110 is provided with multiple external water holes 1101, external secondary water holes 1102, internal secondary water holes 1103, internal water holes 1104, and water replenishment holes 1105. The external water hole 1101 is located below the outer cold water area 1141, the external secondary water hole 1102 is located below the outer hot water area 1142, the internal secondary water hole 1103 is located below the inner cold water area 1143, the internal water hole 1104 is located below the inner hot water area 1144, and the water replenishment hole 1105 is located below the inner hot water area 1144. A lower plate 115 is fixedly installed below the outer furnace body 101.

[0035] like Figures 3-7 As shown, the furnace body mechanism also includes an upper cover 105 fixedly installed on the partition ring plate 114. A water supply pipe 107 is fixedly installed on the upper cover 105. The water supply pipe 107 is located above the inner hot water zone 1144. A water supply cover 106 is provided on the water supply pipe 107.

[0036] like Figures 3-7 As shown, multiple heating tubes 113 are fixedly installed on the lower plate 115. The heating tubes 113 are fixedly installed on the lower plate 110. The heating tubes 113 are divided into inner and outer sides. One end of the heating tube 113 on the outer side is connected to the outer water hole 1101 and the other end is connected to the outer second water hole 1102. One end of the heating tube 113 on the inner side is connected to the inner second water hole 1103 and the other end is connected to the inner water hole 1104.

[0037] like Figures 3-7 As shown, multiple cold water pipes 111 and hot water pipes 112 are fixedly installed on the partition ring plate 114. The cold water pipes 111 are connected to the outer cold water zone 1141 and the inner cold water zone 1143, and the hot water pipes 112 are connected to the outer hot water zone 1142 and the inner hot water zone 1144. A water inlet ring 108 and a water outlet ring 109 are fixedly installed on the partition ring plate 114. Multiple holes are provided on the water inlet ring 108 and the water outlet ring 109. The holes of the water inlet ring 108 are connected to the top of the cold water pipes 111, and the holes of the water outlet ring 109 are connected to the top of the hot water pipes 112. A water inlet pipe 103 is fixedly installed on the water inlet ring 108, and a water outlet pipe 104 is fixedly installed on the water outlet ring 109. The water inlet pipe 103 and the water outlet pipe 104 are fixedly installed on the top cover 105. The water inlet pipe 103 is connected to the external cold water inlet pipe, and the water outlet pipe 104 is connected to the external hot water pipe.

[0038] like Figures 3-7 As shown, a liquid level observation plate 102 is fixedly installed on the outer furnace body 101. The liquid level observation plate 102 is made of transparent glass.

[0039] Before use, open the water supply cover 106 and let water flow into the water supply pipe 107. The water enters the water supply area 1145 and then enters the outer furnace body 101, the isolation shell 302 and the lower plate 115 through the water supply hole 1105. The water level can be observed through the liquid level observation plate 102. Immerse the heating tube 113 in the water.

[0040] Cold water requiring heating enters the inlet pipe 103, then the inlet ring 108, and subsequently through the holes in the inlet ring 108 into the cold water pipe 111. The cold water then flows through the cold water pipe 111 into the outer cold water zone 1141 and the inner cold water zone 1143, and then through the outer water hole 1101 and the inner water hole 1103 into the heating pipe 113 below. Through the combustion of fuel within the isolation shell 302, the outer furnace body 10... 1. The water between the isolation shell 302 and the lower plate 115 is heated to boiling, thereby heating the water in the heating tube 113. The heated water in the heating tube 113 enters the outer hot water zone 1142 and the inner hot water zone 1144 through the outer two water holes 1102 and the inner water hole 1104. Then the water enters the hot water pipe 112, then the water enters the water outlet ring 109, and then the heated water enters the water outlet pipe 104, through which hot water is output.

[0041] like Figures 8-11 As shown, the slag discharge mechanism includes a lower cylinder 201 fixedly installed below the lower plate 115, a bottom cylinder 202 fixedly installed below the lower cylinder 201, a maintenance plate 203 slidably installed on the bottom cylinder 202, multiple outer lifting cylinders 208 fixedly installed inside the lower cylinder 201, an inner sliding column 215 slidably installed inside the outer lifting cylinder 208, a lifting box 206 fixedly installed below the inner sliding column 215, a connecting frame 205 fixedly installed on the lifting box 206, an air intake ring 216 fixedly installed on the lower cylinder 201, an inner support 207 fixedly installed inside the air intake ring 216, multiple vertical grooves provided on the inner support 207, and a bottom electric cylinder 204 fixedly installed inside the bottom cylinder 202, with the output end of the bottom electric cylinder 204 fixedly installed to the lifting box 206.

[0042] like Figures 8-11 As shown, a slag-discharging motor 209 is fixedly installed on the lifting box 206. A lead screw 210 is rotatably installed inside the lifting box 206. The lead screw 210 is fixedly installed with the motor shaft of the slag-discharging motor 209. An internal threaded block 211 is slidably installed inside the lifting box 206. The internal threaded block 211 and the lead screw 210 form a threaded transmission. A slag-discharging plate 213 is rotatably installed on the lifting box 206. A lower connecting rod 212 is rotatably installed below the slag-discharging plate 213. The lower connecting rod 212 is rotatably installed with the internal threaded block 211. An outer net 214 slides below the inner support 207. In the initial state, the slag-discharging plate 213 supports the outer net 214, so that the outer net 214 fits against the lower surface of the inner support 207.

[0043] like Figures 8-11 As shown, the air intake ring 216 is equipped with multiple nozzles, the air intake ring 216 is connected to the external gas pipe, the connecting frame 205 is equipped with an igniter, and the bottom cylinder 202 is equipped with a slag outlet 217.

[0044] When solid fuel enters the inner pocket 207 through the inner pipe 301 and the isolation shell 302, and gas is introduced through the nozzle on the intake ring 216, the gas and solid fuel are ignited by the igniter. The vertical groove of the inner pocket 207 is blocked by the horizontal bar of the outer net 214, so the fuel residue cannot fall out. After the fuel has been burning for a period of time, the fuel in the inner pocket 207 needs to be emptied. At this time, the bottom electric cylinder 204 retracts, driving the lifting box 206, the connecting frame 205, and the ash-discharging plate 213 to descend. At this time, the ash-discharging plate 213 no longer supports the outer net 214, and the outer net 214 descends along the inner pocket 207 due to gravity. As the inner sliding column 215 slides along the outer lifting cylinder 208, the horizontal bar on the outer net 214 no longer obstructs the vertical groove of the inner support 207. The residue in the inner support 207 falls onto the slag-discharging plate 213. Then, the slag-discharging motor 209 drives the lead screw 210 to rotate, causing the inner threaded block 211 to slide along the lifting box 206. The inner threaded block 211 drives the slag-discharging plate 213 to rotate relative to the lifting box 206 through the lower connecting rod 212. At this time, the slag-discharging plate 213 is inclined to the horizontal plane. The residue on the slag-discharging plate 213 slides along the slag-discharging plate 213 to the slag outlet 217, and then the residue falls out from the slag outlet 217.

[0045] like Figure 12 , Figure 13 As shown, the feeding mechanism includes an inner tube 301 fixedly installed inside the partition ring plate 114, an isolation shell 302 fixedly installed outside the inner tube 301, a feeding hopper 303 fixedly installed on the inner tube 301, a feeding motor 304 fixedly installed on the feeding hopper 303, a feeding blade 305 fixedly installed on the motor shaft of the feeding motor 304, and the feeding blade 305 rotatably installed with the feeding hopper 303.

[0046] When in use, solid fuel is placed into the feed hopper 303. The feed motor 304 rotates, which drives the feeding blade 305 to rotate. The rotating feeding blade 305 feeds the solid fuel into the inner tube 301 in a metered manner. Then, the solid fuel falls into the inner pocket 207 through the inner tube 301.

[0047] The working principle of a special boiler with automatic feeding and discharging disclosed in this invention is as follows: Before use, open the water supply cover 106 and let water flow into the water supply pipe 107. The water enters the water supply area 1145, and then the water enters the space between the outer furnace body 101, the isolation shell 302, and the lower plate 115 through the water supply hole 1105. The water level can be observed through the liquid level observation plate 102. The heating tube 113 is immersed in water. Solid fuel is put into the feed hopper 303. The feed motor 304 rotates, driving the feeding blades 305 to rotate. The rotating feeding blades 305 feed the solid fuel quantitatively into the inner tube 301, and then the solid fuel falls into the inner hopper 207 through the inner tube 301. When solid fuel enters the inner pocket 207 through the inner pipe 301 and the isolation shell 302, and gas is introduced through the nozzle on the intake ring 216, the gas and solid fuel are ignited by the igniter. The vertical groove of the inner pocket 207 is blocked by the horizontal bar of the outer net 214, so the fuel residue cannot fall out. After the fuel has been burning for a period of time, the fuel in the inner pocket 207 needs to be emptied. At this time, the bottom electric cylinder 204 retracts, driving the lifting box 206, the connecting frame 205, and the ash-discharging plate 213 to descend. At this time, the ash-discharging plate 213 no longer supports the outer net 214, and the outer net 214 descends along the inner pocket 207 due to gravity. As the inner sliding column 215 slides along the outer lifting cylinder 208, the horizontal bar on the outer net 214 no longer obstructs the vertical groove of the inner support 207. The residue in the inner support 207 falls onto the slag-discharging plate 213. Then, the slag-discharging motor 209 drives the lead screw 210 to rotate, causing the inner threaded block 211 to slide along the lifting box 206. The inner threaded block 211 drives the slag-discharging plate 213 to rotate relative to the lifting box 206 through the lower connecting rod 212. At this time, the slag-discharging plate 213 is inclined to the horizontal plane. The residue on the slag-discharging plate 213 slides along the slag-discharging plate 213 to the slag outlet 217, and then the residue falls out from the slag outlet 217. Cold water requiring heating enters the inlet pipe 103, then the inlet ring 108, and subsequently through the holes in the inlet ring 108 into the cold water pipe 111. The cold water then flows through the cold water pipe 111 into the outer cold water zone 1141 and the inner cold water zone 1143, and then through the outer water hole 1101 and the inner water hole 1103 into the heating pipe 113 below. Through the combustion of fuel within the isolation shell 302, the outer furnace body 10... 1. The water between the isolation shell 302 and the lower plate 115 is heated to boiling, thereby heating the water in the heating tube 113. The heated water in the heating tube 113 enters the outer hot water zone 1142 and the inner hot water zone 1144 through the outer two water holes 1102 and the inner water hole 1104. Then the water enters the hot water pipe 112, then the water enters the water outlet ring 109, and then the heated water enters the water outlet pipe 104, through which hot water is output.

[0048] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the present invention based on the technical solution and inventive concept of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A special boiler with automatic feeding and discharging, comprising a furnace body mechanism for heating external hot water, characterized in that: The furnace body structure includes an outer furnace body (101), and the furnace body structure is provided with a slag discharge mechanism for discharging combustion residue and a feeding mechanism for feeding solid fuel. The furnace body mechanism includes a lower plate (110) fixedly installed on the outer furnace body (101). A partition ring plate (114) is fixedly installed on the lower plate (110). The lower surface of the partition ring plate (114) is divided into five areas: an outer cold water area (1141), an outer hot water area (1142), an inner cold water area (1143), an inner hot water area (1144), and a water replenishment area (1145). The lower plate (110) is provided with multiple outer water holes (1101), outer secondary water holes (1102), and inner secondary water holes (1103). 3) Inner water hole (1104) and water supply hole (1105), outer water hole (1101) is located below the outer cold water zone (1141), outer two water holes (1102) are located below the outer hot water zone (1142), inner two water holes (1103) are located below the inner cold water zone (1143), inner water hole (1104) is located below the inner hot water zone (1144), water supply hole (1105) is located below the inner hot water zone (1144), and a lower plate (115) is fixedly installed below the outer furnace body (101). Multiple heating tubes (113) are fixedly installed on the lower plate (115). The heating tubes (113) are fixedly installed on the lower plate (110). The heating tubes (113) are divided into inner and outer sides. One end of the heating tube (113) located on the outer layer is connected to the outer water hole (1101), and the other end is connected to the outer second water hole (1102). One end of the heating tube (113) located on the inner side is connected to the inner second water hole (1103), and the other end is connected to the inner water hole (1104). Multiple cold water pipes (111) and hot water pipes (112) are fixedly installed on the partition ring plate (114). The cold water pipes (111) are connected to the outer cold water zone (1141) and the inner cold water zone (1143). The hot water pipes (112) are connected to the outer hot water zone (1142) and the inner hot water zone (1144). A water inlet ring (108) and a water outlet ring (109) are fixedly installed on the partition ring plate (114). Multiple holes are provided on the water inlet ring (108) and the water outlet ring (109). The holes of the water inlet ring (108) are connected to the top of the cold water pipe (111), and the holes of the water outlet ring (109) are connected to the top of the hot water pipe (112).

2. A special boiler with automatic feeding and discharging according to claim 1, characterized in that: The furnace body mechanism also includes an upper cover (105) fixedly installed on the partition ring plate (114), a water supply pipe (107) fixedly installed on the upper cover (105), the water supply pipe (107) is located above the inner hot water zone (1144), and a water supply cover (106) is provided on the water supply pipe (107).

3. A special boiler with automatic feeding and discharging according to claim 2, characterized in that: An inlet pipe (103) is fixedly installed on the inlet ring (108), and an outlet pipe (104) is fixedly installed on the outlet ring (109). The inlet pipe (103) and the outlet pipe (104) are fixedly installed on the top cover (105). The inlet pipe (103) is connected to the external cold water inlet pipe, and the outlet pipe (104) is connected to the external hot water pipe.

4. A special boiler with automatic feeding and discharging according to claim 3, characterized in that: A liquid level observation plate (102) is fixedly installed on the outer furnace body (101), and the liquid level observation plate (102) is made of transparent glass.

5. A special boiler with automatic feeding and discharging according to claim 1, characterized in that: The slag discharge mechanism includes a lower cylinder (201) fixedly installed below the lower plate (115), a bottom cylinder (202) fixedly installed below the lower cylinder (201), a maintenance plate (203) slidably installed on the bottom cylinder (202), multiple outer lifting cylinders (208) fixedly installed inside the lower cylinder (201), an inner sliding column (215) slidably installed inside the outer lifting cylinder (208), a lifting box (206) fixedly installed below the inner sliding column (215), a connecting frame (205) fixedly installed on the lifting box (206), an air intake ring (216) fixedly installed on the lower cylinder (201), an inner support (207) fixedly installed inside the air intake ring (216), multiple vertical grooves provided on the inner support (207), a bottom electric cylinder (204) fixedly installed inside the bottom cylinder (202), and the output end of the bottom electric cylinder (204) fixedly installed with the lifting box (206).

6. A special boiler with automatic feeding and discharging according to claim 5, characterized in that: A slag-discharging motor (209) is fixedly installed on the lifting box (206). A lead screw (210) is rotatably installed inside the lifting box (206). The lead screw (210) is fixedly installed with the motor shaft of the slag-discharging motor (209). An internal thread block (211) is slidably installed inside the lifting box (206). The internal thread block (211) and the lead screw (210) form a threaded transmission. A slag-discharging plate (213) is rotatably installed on the lifting box (206). A lower connecting rod (212) is rotatably installed below the slag-discharging plate (213). The lower connecting rod (212) is rotatably installed with the internal thread block (211). An outer net (214) slides below the inner support (207). In the initial state, the slag-discharging plate (213) supports the outer net (214), so that the outer net (214) fits against the lower surface of the inner support (207).

7. A special boiler with automatic feeding and discharging according to claim 6, characterized in that: The air intake ring (216) is equipped with multiple nozzles. The air intake ring (216) is connected to an external gas pipe. An igniter is installed inside the connecting frame (205). A slag outlet (217) is installed below the bottom cylinder (202).

8. A special boiler with automatic feeding and discharging according to claim 1, characterized in that: The feeding mechanism includes an inner tube (301) fixedly installed inside the partition ring plate (114), an isolation shell (302) fixedly installed outside the inner tube (301), a feeding hopper (303) fixedly installed on the inner tube (301), a feeding motor (304) fixedly installed on the feeding hopper (303), a feeding blade (305) fixedly installed on the motor shaft of the feeding motor (304), and the feeding blade (305) is rotatably installed with the feeding hopper (303).

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