Crushed coal slag gasification furnace slag pool

Abstract

The invention discloses a crushed coal slag gasification furnace slag pool which comprises a slag pool mechanism installed in a gasification furnace mechanism, the gasification furnace mechanism comprises a gasification furnace body, and a partition plate is fixedly installed on the upper portion of the inner wall of the gasification furnace body. According to the slack coal slag gasification furnace slag pool, the gasification furnace mechanism and the slag pool mechanism are combined for use, and through the arrangement of the two mechanisms, when the slag pool body is used, the slag pool body can be cooled through circulation of cooling liquid in the spiral guide pipe, the slag pool body is prevented from being continuously subjected to thermal shock, and the service life of the slag pool body is prolonged. Meanwhile, when a high-pressure water pump carries out high-pressure water injection, a conical rotating base, a rectangular water frame and an annular sealing cover can be driven to rotate through strong pressure, the rotating mode can utilize the strong pressure again to enable cooling water to be discharged through a water discharging hole and impact on the inner wall of the slag pool body, and therefore the cooling water can be directly conveyed to the bottom; the surface temperature of the slag bath body is further reduced.

Description

Technical Field

[0001] This invention relates to the field of coal chemical technology, specifically to a slag pool for pulverized coal slag gasification furnace. Background Technology

[0002] The slag pool is a crucial component of a pulverized coal slag gasifier, a device that pressurizes coal for gasification, typically using oxygen and steam as gasifying agents. Under high-temperature conditions within the furnace, coal and the gasifying agent undergo a series of complex chemical reactions. Carbon in the coal reacts with oxygen to produce carbon dioxide and carbon monoxide, while carbon reacts with steam to produce carbon monoxide and hydrogen. The resulting gas mixture is syngas, primarily composed of carbon monoxide, hydrogen, and methane, and can be used as a chemical feedstock or fuel. It features high conversion efficiency, good environmental performance, and high economic benefits, and is widely used in ammonia synthesis, methanol production, coal-to-oil conversion, combined cycle power generation, and hydrogen production.

[0003] The existing slag pool is located at the bottom of the coal gasification pressure vessel of the pulverized coal slag gasifier. It is used to hold liquid slag and iron. When the gasifier is running, the slag pool is constantly subjected to erosion, corrosion and thermal shock from the slag and iron. During slag lifting and slag discharge operations, the high temperature and fluidity of the slag and iron will cause the material of the slag pool to be mainly subjected to erosion and thermal shock. If it is not shut down for maintenance after a period of use, not only will the slag pool and slag discharge port deteriorate quickly under the action of high temperature and iron-containing slag, but it will also cause slag pool burn-out, slag discharge port blockage, shorten service life, inconvenience of slag pool maintenance and disassembly, and huge losses from shutdown.

[0004] Therefore, a new type of slag pool for pulverized coal slag gasification furnace has been designed to effectively cool the slag pool and extend its service life, thus addressing these shortcomings. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a slag pool for pulverized coal slag gasification furnaces, which solves the problem of existing slag pools being easily corroded by high temperatures.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a slag pool for a pulverized coal slag gasification furnace, comprising a slag pool mechanism installed inside a gasification furnace mechanism. The gasification furnace mechanism includes a gasification furnace body. A partition plate is fixedly installed on the upper part of the inner wall of the gasification furnace body. A discharge cylinder is installed on the top of the partition plate through an opening. An exhaust pipe is fixedly installed on the left side of the gasification furnace body through an opening. An annular cover is fixedly installed on the bottom of the inner cavity of the partition plate through a bracket. An annular water frame is slidably installed on the surface of the annular cover, and an annular guide groove that cooperates with the annular cover is provided on the inner wall of the annular water frame.

[0007] Preferably, a rectangular water frame is fixedly installed on the surface of the annular water frame by opening an opening, and multiple rectangular water frames are arranged in a ring at equal intervals. The surface of the rectangular water frame is provided with a drainage hole that extends to the rear of the rectangular water frame, and multiple drainage holes are provided.

[0008] Preferably, the bottom of the rectangular water frame is fixedly connected to an L-shaped sealing plate by a fixing plate, the bottom of the L-shaped sealing plate has a circular opening, and the upper part of the L-shaped sealing plate is fixedly installed with a baffle plate that cooperates with the circular opening.

[0009] Preferably, the slag pool mechanism includes a slag pool body, which is fixedly installed at the bottom of the inner cavity of the gasifier body. The bottom ends of the plurality of rectangular water racks extend to the inner side of the slag pool body, and the rectangular water racks are in contact with the inner wall of the slag pool body. The L-shaped sealing plate is in contact with the bottom of the inner cavity of the slag pool body. A spiral groove is provided on the inner side of the slag pool body, and a spiral guide is fixedly installed on the inner side of the spiral groove. Both ends of the spiral guide penetrate the gasifier body and extend to the outside of the gasifier body.

[0010] Preferably, a sealing rotating cylinder is fixedly connected to the bottom of the slag pool body via a fixing plate, an inclined base is fixedly installed at the bottom of the inner cavity of the slag pool body, a conical rotating seat is rotatably installed on the surface of the inclined base, a rotating rod is rotatably connected to the bottom of the inner cavity of the sealing rotating cylinder via a bearing component, and the top end of the rotating rod passes through the sealing rotating cylinder, the slag pool body and the inclined base in sequence and extends to the inner side of the inclined base, and one end of the rotating rod extending to the inner side of the inclined base is fixedly connected to the conical rotating seat.

[0011] Preferably, fan blades are fixedly installed on the surface of the rotating rod and inside the sealed rotating cylinder; a polygonal frame is fixedly installed on the top of the conical rotating seat; the polygonal frame is fixedly connected to multiple rectangular water frames; a water inlet pipe is fixedly installed on the rear left side of the sealed rotating cylinder through an opening; and a high-pressure water pump is connected to the other end of the water inlet pipe; a water injection pipe is fixedly installed on the right side of the sealed rotating cylinder through an opening; and the right end of the water injection pipe penetrates the gasifier body and is connected to the annular cover; a water distribution pipe is installed on the surface of the water injection pipe.

[0012] Preferably, a circular slot is provided at the bottom of the inner cavity of the slag pool body and on the outer periphery of the inclined base, and multiple circular slots are provided. A threaded head is fixedly installed at the bottom of the circular slot through an opening. A filter screen is provided on the inner side of the circular slot, and the filter screen is threadedly connected to the threaded head.

[0013] Preferably, an air supply pipe is provided on the inner side of the threaded head, and the bottom end of the air supply pipe penetrates through the slag pool body and extends to the bottom of the slag pool body. An air guide pipe is fixedly installed at one end of the air supply pipe extending to the bottom of the slag pool body, and a material extraction pipe is fixedly installed on the rear side of the bottom of the inner cavity of the slag pool body by opening an opening.

[0014] This invention provides a slag pool for pulverized coal slag gasification, which has the following advantages compared with existing technologies:

[0015] The present invention provides a slag pool for a pulverized coal slag gasifier by combining the gasifier mechanism and the slag pool mechanism. The arrangement of these two mechanisms allows the slag pool body to be cooled by the circulation of cooling liquid inside the spiral conduit during use, thus preventing the slag pool body from being continuously subjected to thermal shock. At the same time, when the high-pressure water pump injects water at high pressure, it can drive the conical rotating seat, rectangular water frame and annular cover to rotate through the strong pressure. This rotation method can use the strong pressure to discharge cooling water through the drain hole and impact the inner wall of the slag pool body, thereby allowing the cooling water to be directly delivered to the bottom, further reducing the surface temperature of the slag pool body and thus extending the service life of the slag pool body.

[0016] The present invention provides a slag pool for a pulverized coal slag gasification furnace. A circular slot is opened at the bottom of the slag pool body, and a filter screen is installed thereon. An air supply pipe is also installed inside the filter screen. This is used in conjunction with an L-shaped sealing plate, a circular opening, and a baffle plate. These structural features allow for continuous aeration of the inner side of the slag pool body via the air supply pipe, thereby mixing and stirring the slag slurry and improving the uniformity of the slag slurry's contact with water. Furthermore, when the circular opening blocks the air supply pipe, the baffle plate allows air bubbles to diffuse towards the bottom, causing fine slag particles at the bottom to float upwards, thus improving discharge efficiency.

[0017] The present invention provides a slag pool for pulverized coal slag gasification furnace. By installing an inclined base at the bottom of the inner cavity of the slag pool body and setting a matching conical rotating seat at the top of the inclined base, the slag slurry can be prevented from flowing upwards and backwards between the inclined base and the conical rotating seat when the conical rotating seat rotates, thus ensuring the stable operation of the conical rotating seat. Attached Figure Description

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

[0019] Figure 2 This is a bottom view of the high-pressure water pump, air guide pipe, and material extraction pipe structure of the present invention;

[0020] Figure 3 This is a cross-sectional view of the structure of the gasifier body and the slag pool body of the present invention;

[0021] Figure 4 This is a schematic diagram of the gasifier mechanism of the present invention;

[0022] Figure 5 This is a cross-sectional view of the annular cap and annular water frame structure of the present invention;

[0023] Figure 6 For the present invention Figure 5 A magnified view of a section at point A in the middle;

[0024] Figure 7 This is a schematic diagram of the rectangular water frame, drainage holes, and L-shaped sealing plate structure of the present invention;

[0025] Figure 8 This is a schematic diagram of the slag pool mechanism of the present invention;

[0026] Figure 9 For the present invention Figure 8 A magnified view of a section at point B in the middle;

[0027] Figure 10 This is a schematic diagram of the conical rotating base, rotating rod, polygonal frame, and fan blade structure of the present invention;

[0028] Figure 11 This is a side view of the internal structure of the slag pool body of the present invention;

[0029] Figure 12 This is a top view of the internal structure of the sealing rotary cylinder of the present invention.

[0030] In the diagram: 1. Gasifier mechanism; 2. Slag pool mechanism; 101. Gasifier body; 102. Discharge cylinder; 103. Exhaust pipe; 104. Annular cover; 105. Annular water frame; 106. Annular guide groove; 107. Rectangular water frame; 108. Drainage hole; 109. L-shaped sealing plate; 110. Circular opening; 111. Baffle plate; 112. Divider plate; 201. Slag pool body; 202. Spiral through groove; 2 03. Spiral conduit; 204. Sealed rotating cylinder; 205. Inclined base; 206. Conical rotating seat; 207. Rotating rod; 208. Multi-angle frame; 209. Fan blade; 210. Water inlet pipe; 211. High-pressure water pump; 212. Water injection pipe; 213. Water distribution pipe; 214. Circular slot; 215. Threaded head; 216. Filter screen cylinder; 217. Air delivery pipe; 218. Air guide pipe; 219. Material extraction pipe. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1

[0033] Please see Figures 1-12The present invention provides a technical solution: a slag pool for a coal slag gasification furnace, including a slag pool mechanism 2 installed inside the gasification furnace mechanism 1;

[0034] Please refer to Figure 4 , Figure 5 , Figure 6 and Figure 7 The diagram illustrates the overall structure of the gasifier mechanism 1. The gasifier mechanism 1 includes a gasifier body 101. A partition plate 112 is fixedly installed on the upper part of the inner wall of the gasifier body 101. A discharge cylinder 102 is installed on the top of the partition plate 112 through an opening. The bottom end of the discharge cylinder 102 is vertically inserted 50mm-80mm below the cooling liquid surface in the slag pool body 201, forming a stable water seal structure. This, combined with the dynamic balance of water levels from the high-pressure water pump 211 and the material pump, ensures that the bottom end of the discharge cylinder 102 is always at this immersion depth, completely preventing the leakage of crude gas from the gap between the discharge cylinder 102 and the water. This works in conjunction with the exhaust pipe 103's extraction function to ensure the sealing and reliability of the gas collection. The left side of the gasifier body 101 has an opening... An exhaust pipe 103 is fixedly installed in the opening. An annular cover 104 is fixedly installed at the bottom of the inner cavity of the partition plate 112 via a bracket. An annular water frame 105 is slidably installed on the surface of the annular cover 104. An annular guide groove 106 is opened on the inner wall of the annular water frame 105 to cooperate with the annular cover 104. A polytetrafluoroethylene wear-resistant sealing gasket and a high-temperature resistant silicone sealing strip are provided inside the annular guide groove 106. The polytetrafluoroethylene wear-resistant sealing gasket is tightly slidably fitted with the outer wall of the annular cover 104. The high-temperature resistant silicone sealing strip is elastically abutted against the side wall of the annular cover 104, so as to achieve radial and axial double sealing when the annular water frame 105 and the annular cover 104 slide together, to prevent cooling water leakage.

[0035] A rectangular water frame 107 is fixedly installed on the surface of the annular water frame 105 through an opening. The rectangular water frame 107 is made of 316L stainless steel. The rectangular water frame 107 and the inner wall of the slag pool body 201 are elastically fitted with a clearance of 0.5mm-0.8mm. On the side of the rectangular water frame 107 facing the inner wall of the slag pool body 201, a wear-resistant ceramic composite plate is provided to achieve elastic and tight fit with the inner wall of the slag pool body 201, which not only ensures smooth rotation, but also achieves sealing and leak prevention and wear protection. Multiple rectangular water frames 107 are arranged in a ring at equal intervals. The surface of the rectangular water frame 107 is provided with drainage holes 108 that extend to the rear of the rectangular water frame 107, and multiple drainage holes 108 are provided.

[0036] The bottom of the rectangular water frame 107 is fixedly connected to an L-shaped sealing plate 109 via a fixing plate. The bottom of the L-shaped sealing plate 109 has a circular opening 110. The upper part of the L-shaped sealing plate 109 is fixedly installed with a baffle plate 111 that works with the circular opening 110. The baffle plate 111 has an arc-shaped structure and its tilt angle is 30°-45°. It is used to change the rising path of the bubbles and guide the bubbles to diffuse towards the bottom of the slag pool.

[0037] Please refer to Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12 The overall structure of the slag pool mechanism 2 is shown. The slag pool mechanism 2 includes a slag pool body 201, which is made of ZG35Cr24Ni7SiNRe high temperature and corrosion resistant alloy. The slag pool body 201 is fixedly installed at the bottom of the inner cavity of the gasifier body 101. The bottom ends of multiple rectangular water racks 107 extend to the inner side of the slag pool body 201, and the rectangular water racks 107 are in contact with the inner wall of the slag pool body 201. The L-shaped sealing plate 109 is in contact with the bottom of the inner cavity of the slag pool body 201. A spiral groove 202 is opened on the inner side of the slag pool body 201, and a spiral conduit 203 is fixedly installed on the inner side of the spiral groove 202. The spiral conduit 203 is a seamless 304 stainless steel pipe, and the internal coolant is industrial deionized water. Both ends of the spiral conduit 203 penetrate the gasifier body 101 and extend to the outside of the gasifier body 101.

[0038] A sealing rotating cylinder 204 is fixedly connected to the bottom of the slag pit body 201 via a fixing plate. An inclined base 205 is fixedly installed at the bottom of the inner cavity of the slag pit body 201. The upper surface of the inclined base 205 is a tapered slope with an inclination angle of 20°-30° to prevent slag accumulation. A tapered rotating seat 206 is rotatably mounted on the surface of the inclined base 205. The taper of the tapered rotating seat 206 matches the taper of the inclined base 205, and a wear-resistant sealing gasket is provided between them. A rotating rod 207 is rotatably connected to the bottom of the inner cavity of the sealing rotating cylinder 204 via a bearing. The top of the rotating rod 207 passes through the sealing rotating cylinder 204, the slag pool body 201 and the inclined base 205 in sequence and extends to the inner side of the inclined base 205. The end of the rotating rod 207 extending to the inner side of the inclined base 205 is fixedly connected to the conical rotating seat 206. A stuffing box dynamic sealing structure is set at the position where the rotating rod 207 passes through the sealing rotating cylinder 204 and the slag pool body 201. It has a double-layer sealing component with a built-in graphite packing and a high-temperature resistant fluororubber sealing ring. Dynamic sealing is achieved during the rotation of the rotating rod 207 by bolt pre-tightening, eliminating the risk of water leakage and air leakage. The sealing component is adapted to the working speed of the rotating rod 207 and is suitable for the high temperature and high pressure conditions of the equipment.

[0039] A fan blade 209 is fixedly installed on the surface of the rotating rod 207 and inside the sealed rotating cylinder 204. The outlet end of the water inlet pipe 210 faces the inside of the sealed rotating cylinder 204 and is set along the tangential direction of the fan blade 209. The outlet end of the water inlet pipe 210 forms an angle of 15°-20° with the frontal surface of the fan blade 209. High-pressure water is sprayed tangentially onto the frontal surface of the fan blade 209, forming the maximum rotational torque, which drives the rotating rod 207, the conical rotating seat 206, and the rectangular water frame 107 to rotate as a whole. The fan blade 209 is an arc-shaped centrifugal blade, and the bending direction of the blade is adapted to the tangential spray direction of the water flow. The frontal surface of the blade is polished and wear-resistant to improve the power conversion efficiency of the water flow impact. A polygonal bracket 208 is fixedly installed on the top of the conical rotating seat 206. The polygonal bracket 208 is fixedly connected to multiple rectangular water frames 107. The rear left side of the sealed rotating cylinder 204 is fixedly installed through an opening. There is a water inlet pipe 210, and the other end of the water inlet pipe 210 is connected to a high-pressure water pump 211. A water injection pipe 212 is fixedly installed on the right side of the sealed rotating cylinder 204 through an opening. The right end of the water injection pipe 212 passes through the gasifier body 101 and is connected to the annular cover 104. A water distribution pipe 213 is installed on the surface of the water injection pipe 212 and is located inside the gasifier body 101. The water outlet of the water distribution pipe 213 sprays water obliquely downward towards the middle of the slag pool body 201. The water outlet direction forms an angle of 30°-45° with the inner wall of the slag pool body 201. It has the dual functions of auxiliary cooling and stirring slag slurry. On the one hand, it replenishes cooling water to the middle of the slag pool, reduces the local temperature of the molten slag falling area, and enhances the overall cooling effect. On the other hand, it forms a vortex through water flow impact, stirs the slag slurry in the slag pool, prevents local deposition of slag particles, and improves the mixing uniformity of slag slurry with the aeration structure, which helps to efficiently discharge slag.

[0040] A circular slot 214 is provided at the bottom of the inner cavity of the slag tank body 201 and on the outer periphery of the inclined base 205. Multiple circular slots 214 are provided. A threaded head 215 is fixedly installed at the bottom of the circular slot 214 through an opening. A filter screen cylinder 216 is provided on the inner side of the circular slot 214. The filter screen cylinder 216 is coaxially sleeved on the outer side of the top of the air supply pipe 217. The filter screen covers the aeration hole at the top of the air supply pipe 217. The filter object is large particles of slag with a particle size ≥1mm in the slag slurry, preventing them from entering the air supply pipe 217 and clogging the aeration hole and air passage. The filter screen cylinder 216 is made of 80-120 mesh 304 stainless steel and is connected to the threaded head 215 by threaded engagement. An integrated handle is provided on the top, which can be directly unscrewed and disassembled by hand to achieve quick cleaning or replacement, avoiding long-term use and blockage that leads to failure of the aeration function. The filter screen cylinder 216 and the threaded head 215 are threadedly connected.

[0041] An air supply pipe 217 is provided on the inner side of the threaded head 215, and the bottom end of the air supply pipe 217 passes through the slag pool body 201 and extends to the bottom of the slag pool body 201. An air guide pipe 218 is fixedly installed at one end of the air supply pipe 217 extending to the bottom of the slag pool body 201. A material extraction pipe 219 is fixedly installed on the rear side of the bottom of the slag pool body 201 through an opening.

[0042] Before use, connect both ends of the spiral conduit 203 to the cold source, connect the exhaust pipe 103 to the air extractor, and connect the material extraction pipe 219 to the material pump. Then connect the air guide pipe 218 to the aerator. During use, first start the high-pressure water pump 211 to inject water into the interior of the slag pool body 201. During water injection, the high-pressure water pump 211 increases the water flow pressure, so after the water enters the sealed rotating cylinder 204, it will push the fan blades 209 to drive the rotating rod 207 to rotate. Then the high-pressure water continues to enter the interior of the annular water frame 105 through the water injection pipe 212. Then, under the action of high pressure, the water disperses in... Multiple rectangular water racks 107 are placed inside the slag pool, and then water is sprayed out from the drain hole 108 to contact the inner wall of the slag pool body 201. At the same time, the water distribution pipe 213 directly injects water into the interior of the slag pool body 201 until the bottom of the discharge cylinder 102 is completely submerged. Water seal is used to prevent gas leakage. Then, the material pump is started to continuously pump water into the interior of the slag pool body 201 using the suction pipe 219. The suction speed and the water injection speed are balanced to stabilize the liquid level inside the slag pool body 201. After the molten coal is injected into the gasifier body 101, it undergoes a high-temperature reaction in the discharge cylinder 102. At this time, the ash melt falls into the slag pool. Inside the slag pool body 201, when the ash melt comes into contact with water, it cools and solidifies into particles to form a slurry, generating a large amount of crude coal gas. The exhaust pipe 103 then extracts the crude coal gas, while the aerator continuously injects gas into the inside of the slag pool body 201 through the air guide pipe 218 and the air delivery pipe 217, tumbling and stirring the slurry to prevent it from sticking and settling. Then, the extraction pipe 219 extracts the slurry along with the water. During this process, the spiral guide pipe 203 continuously circulates coolant inside, thereby cooling the slag pool body 201 and preventing continuous thermal corrosion that would shorten its lifespan. The conical rotating seat 20... The rotation of the polygonal frame 208 and multiple rectangular water frames 107 causes the drain holes 108 to continuously press the cooling water from the top to the bottom, impacting the inner wall of the slag pool body 201, thereby providing secondary cooling to the slag pool body 201 and better cooling the ash melt. As the rectangular water frames 107 rotate, the L-shaped sealing plate 109 also rotates synchronously. When the circular opening 110 aligns with the filter screen cylinder 216, the baffle plate 111 blocks the rising path of the bubbles, causing the bubbles to aerate towards the bottom, thereby pushing the stagnant water at the bottom of the slag pool body 201 upward and preventing the deposition of fine ash slag.

[0043] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A slag pool for a pulverized coal slag gasification furnace, comprising a slag pool mechanism (2) installed inside the gasification furnace mechanism (1), characterized in that, The gasifier mechanism (1) includes a gasifier body (101). A partition plate (112) is fixedly installed on the upper part of the inner wall of the gasifier body (101). A discharge cylinder (102) is installed on the top of the partition plate (112) through an opening. An exhaust pipe (103) is fixedly installed on the left side of the gasifier body (101) through an opening. An annular cover (104) is fixedly installed on the bottom of the inner cavity of the partition plate (112) through a bracket. An annular water frame (105) is slidably installed on the surface of the annular cover (104). An annular guide groove (106) is opened on the inner wall of the annular water frame (105) to cooperate with the annular cover (104).

2. The slag pool for pulverized coal slag gasification furnace according to claim 1, characterized in that, The surface of the annular water frame (105) is fixedly installed with a rectangular water rack (107) through an opening, and multiple rectangular water racks (107) are arranged in a ring at equal intervals. The surface of the rectangular water rack (107) is provided with a drain hole (108) that extends to the rear of the rectangular water rack (107), and multiple drain holes (108) are provided.

3. The slag pool for pulverized coal slag gasification furnace according to claim 2, characterized in that, The bottom of the rectangular water frame (107) is fixedly connected to an L-shaped sealing plate (109) by a fixing plate. The bottom of the L-shaped sealing plate (109) is provided with a round opening (110). The upper part of the L-shaped sealing plate (109) is fixedly installed with a baffle plate (111) that cooperates with the round opening (110).

4. The slag pool for pulverized coal slag gasification furnace according to claim 3, characterized in that, The slag pool mechanism (2) includes a slag pool body (201), which is fixedly installed at the bottom of the inner cavity of the gasifier body (101). The bottom ends of the multiple rectangular water racks (107) extend to the inner side of the slag pool body (201), and the rectangular water racks (107) are in contact with the inner wall of the slag pool body (201). The L-shaped sealing plate (109) is in contact with the bottom of the inner cavity of the slag pool body (201). A spiral groove (202) is provided on the inner side of the slag pool body (201), and a spiral guide (203) is fixedly installed on the inner side of the spiral groove (202). Both ends of the spiral guide (203) penetrate the gasifier body (101) and extend to the outside of the gasifier body (101).

5. The slag pool for pulverized coal slag gasification furnace according to claim 4, characterized in that, The bottom of the slag pool body (201) is fixedly connected to a sealing rotating cylinder (204) via a fixing plate. An inclined base (205) is fixedly installed at the bottom of the inner cavity of the slag pool body (201). A conical rotating seat (206) is rotatably installed on the surface of the inclined base (205). A rotating rod (207) is rotatably connected to the bottom of the inner cavity of the sealing rotating cylinder (204) via a bearing component. The top end of the rotating rod (207) passes through the sealing rotating cylinder (204), the slag pool body (201), and the inclined base (205) in sequence and extends to the inner side of the inclined base (205). One end of the rotating rod (207) extending to the inner side of the inclined base (205) is fixedly connected to the conical rotating seat (206).

6. The slag pool for pulverized coal slag gasification furnace according to claim 5, characterized in that, A fan blade (209) is fixedly installed on the surface of the rotating rod (207) and inside the sealed rotating cylinder (204). A polygonal frame (208) is fixedly installed on the top of the conical rotating seat (206). The polygonal frame (208) is fixedly connected to multiple rectangular water frames (107). A water inlet pipe (210) is fixedly installed on the rear left side of the sealed rotating cylinder (204) through an opening. The other end of the water inlet pipe (210) is connected to a high-pressure water pump (211). A water injection pipe (212) is fixedly installed on the right side of the sealed rotating cylinder (204) through an opening. The right end of the water injection pipe (212) penetrates the gasifier body (101) and is connected to the annular cover (104). A water distribution pipe (213) is installed on the surface of the water injection pipe (212).

7. The slag pool for pulverized coal slag gasification furnace according to claim 6, characterized in that, A circular slot (214) is provided at the bottom of the inner cavity of the slag pool body (201) and on the outer periphery of the inclined base (205). Multiple circular slots (214) are provided. A threaded head (215) is fixedly installed at the bottom of the circular slot (214) by opening. A filter screen cylinder (216) is provided on the inner side of the circular slot (214), and the filter screen cylinder (216) is threadedly connected to the threaded head (215).

8. The slag pool for pulverized coal slag gasification furnace according to claim 7, characterized in that, An air supply pipe (217) is provided on the inner side of the threaded head (215), and the bottom end of the air supply pipe (217) penetrates the slag pool body (201) and extends to the bottom of the slag pool body (201). A gas guide pipe (218) is fixedly installed at one end of the air supply pipe (217) extending to the bottom of the slag pool body (201). A material extraction pipe (219) is fixedly installed on the rear side of the bottom of the slag pool body (201) by opening.

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