Boiler high-temperature bottom slag cooling and waste heat recovery equipment and method

Abstract

The invention discloses boiler high-temperature bottom slag cooling and waste heat recycling equipment and method, and relates to the technical field of high-temperature slag energy recycling. The boiler high-temperature bottom slag cooling and waste heat recycling equipment comprises a base, a cooling box is fixedly installed on the top face of the base, a top plate is fixedly installed on the top face of the cooling box, and a motor A is fixedly installed in the base; a rotating shaft is installed at the output end of the motor A, a slag cooling plate A and a slag cooling plate B are fixedly installed on the surface of the rotating shaft, a water tank A is fixedly installed on the top face of the top plate, a water pump A is fixedly installed on the top face of the top plate, and a connecting pipe A is installed at the input end of the water pump A. A communicating groove A and a communicating groove B are formed in the rotating shaft. A drainage pipe is fixedly mounted in the top plate; the invention provides a novel, efficient, environment-friendly and energy-saving solution for cooling the high-temperature bottom slag of the boiler and recovering the waste heat, and has important significance for promoting efficient utilization of energy and reducing environmental pollution.

Description

Technical Field

[0001] The present invention relates to the technical field of high-temperature slag energy recovery and utilization, and in particular to a boiler high-temperature bottom slag cooling and waste heat recovery device and method. Background Art

[0002] The slag cooler, also known as the slag cooler, is mainly composed of a cylinder, a slag inlet box, a slag outlet box, a power transmission device, a base frame and an electrical control system. It is generally divided into a drum slag cooler, a vibration slag cooler and a water-cooled slag cooler. At present, the most commonly used slag cooler for circulating fluidized bed boilers in China is the drum slag cooler.

[0003] For example, the "vertical multi-layer slag cooler" with publication number CN103759256A includes a buffer slag flow channel, a slag sweeping plate, a slag cooling plate, and a high-pressure gas nozzle. The buffer slag flow channel and the slag cooling plate are fixed to the outer cylinder wall, the slag sweeping plate is fixedly mounted on the central rotating shaft, the slag sweeping plate and the slag cooling plate are repeatedly arranged in multiple layers, and the high-pressure gas nozzle is arranged on the central rotating shaft. Four slag sweeping plates are evenly and symmetrically arranged on each layer along the circumference of the central rotating shaft, the slag dropping ports of the slag cooling plates are staggered, and buffer inclined plates are provided at the slag dropping ports. The solid slag flows into the slag cooling plate through the buffer slag flow channel, falls layer by layer under the action of the slag sweeping plate, and finally flows out from the slag discharge channel after being fully cooled. The cooling effect is greatly improved, the slag discharge temperature is reduced, and it has a certain anti-slagging ability.

[0004] In the prior art, although this type of slag cooler can reduce the slag discharge temperature and has a certain anti-slagging ability, it is lacking in waste heat recovery and slag cooling. Since this type of slag cooler does not have a structure to prevent slag accumulation and waste heat recovery, this will result in the slag being unable to fully contact the slag cooling plate due to the accumulation of slag when cooling the boiler slag, thereby making it impossible to fully cool the slag, resulting in heat loss and inability to fully collect it. At the same time, when the staff handles the cooled slag, the slag is not fully cooled, causing burns to the staff. Summary of the invention

[0005] The object of the present invention is to provide a boiler high-temperature bottom ash cooling and waste heat recovery device to solve the problem that the boiler bottom ash cooling and waste heat recovery device proposed in the above background technology does not have a structure for recovering waste heat and preventing slag accumulation, resulting in the slag being unable to be completely cooled.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a boiler high-temperature bottom ash cooling and waste heat recovery device and method, comprising a base, a cooling box is fixedly installed on the top surface of the base, a top plate is fixedly installed on the top surface of the cooling box, a motor A is fixedly installed inside the base, a rotating shaft is installed on the output end of the motor A, a slag cooling plate A and a slag cooling plate B are fixedly installed on the surface of the rotating shaft, a water tank A is fixedly installed on the top surface of the top plate, a water pump A is fixedly installed on the top surface of the top plate, a connecting pipe A is installed on the input end of the water pump A, a connecting groove A and a connecting groove B are opened inside the rotating shaft, a drain pipe is fixedly installed inside the top plate, a discharge port A is opened through the top surface of the slag cooling plate A, a discharge port B is opened through the top surface of the slag cooling plate B, guide plates are fixedly installed on the top surfaces of the slag cooling plates A and B, and water outlet troughs and water inlet troughs are respectively opened inside the slag cooling plates A and B.

[0007] Preferably, the water outlet groove is connected to the connecting groove B, the connecting groove B is connected to the drain pipe, and the water inlet groove is connected to the connecting groove A.

[0008] Preferably, the shape of the slag cooling plate A is concave, the shape of the slag cooling plate A is convex, the rotating shaft is rotatably connected to the cooling box, one end of the connecting pipe A is connected to the output end of the water tank A, and the other end is connected to the input end of the water pump A.

[0009] Preferably, the number of the slag cooling plates A and the slag cooling plates B is three groups, and the three groups of slag cooling plates A and B are evenly distributed on the surface of the rotating shaft, and the slag cooling plates A and B are attached to the inner surface of the cooling box.

[0010] Preferably, a crushing box is fixedly mounted on the top surface of the top plate, a conveyor belt is arranged on the top of the crushing box, a water tank B and a water pump B are fixedly mounted on the top surface of the crushing box, connecting pipes are installed at the output end and input end of the water pump B, an atomizing nozzle is fixedly mounted inside the crushing box, a material guide plate is fixedly mounted inside the crushing box, a crushing roller is arranged inside the crushing box, a screening plate is inserted inside the crushing box, and a block is rotatably connected to the surface of the crushing box.

[0011] Preferably, a rotating rod A is rotatably connected inside the crushing box, a torsion spring A is sleeved on the surface of the rotating rod A, a baffle A is fixedly mounted on one end of the rotating rod A, and a feed port is penetrated through the side of the crushing box that contacts the top plate.

[0012] Preferably, one end of the connecting pipe B is connected to the output end of the water tank B, and the other end is connected to the input end of the atomizing nozzle, the block is slidably connected to the screen plate, one end of the torsion spring A is connected to the side of the baffle A, and the other end is connected to the inner surface of the crushing box.

[0013] Preferably, a motor B is fixedly installed on the side of the base, a reciprocating screw is installed on the output end of the motor B, a limiting groove is provided inside the base, a discharge groove is provided inside the base, a limiting rod is slidably connected inside the limiting groove, scrapers A are fixedly installed on both sides of the limiting rod, a guide rod is fixedly installed on the surface of the scraper A, a rotating rod B is rotatably connected inside the base, a torsion spring B is sleeved on the surface of the rotating rod B, a baffle B is fixedly installed on one end of the rotating rod B, and a scraper B is fixedly installed on the surface of the rotating shaft.

[0014] Preferably, the scraper B is slidably connected to the base, the baffle B is slidably connected to the base, the limit rod and the reciprocating screw are threadedly connected, one end of the torsion spring B is connected to the side of the baffle B, and the other end is connected to the inner surface of the base.

[0015] A method for using a boiler high-temperature bottom ash cooling and waste heat recovery device comprises the following steps:

[0016] S1. When the boiler bottom ash needs to be cooled, the motor A is used to drive the shaft to rotate, and the shaft A will drive the cold slag plate A and the cold slag plate B to rotate. At this time, the water pump A is used, and the water pump A will inject the water in the water tank A into the water inlet grooves of the cold slag plate A and the cold slag plate B through the connecting groove A through the connecting pipe A. As the cold slag plate A rotates, the cold slag plate A will transport the bottom ash to the discharge port A through the guide groove. At this time, the bottom ash will fall to the top surface of the cold slag plate B. At this time, the water in the cold slag plate A and the cold slag plate B will absorb the heat of the bottom ash. After the absorption is completed, it will be discharged to the water outlet pipe through the water outlet groove and the connecting groove B, thereby completing the cooling of the bottom ash and the recovery of waste heat;

[0017] S2. When the bottom slag needs to be crushed and screened, the bottom slag only needs to be placed on the conveyor belt, which will then convey it to the guide plate, which will then guide the bottom slag to the crushing roller for crushing. The crushed bottom slag will be screened by the screening plate and then discharged into the cooling box through the feed port, thus completing the crushing and screening of the bottom slag. When the screening plate needs to be cleaned, the block only needs to be rotated, and the screening plate can be taken out of the crushing box after the block slides off the surface of the screening plate.

[0018] S3. After the conveyor belt transports the bottom slag to the baffle A, the baffle A will rotate in the crushing box through the rotating rod A. After the bottom slag is away from the baffle A, the baffle A will rotate again under the torsion of the torsion spring A, thereby completing the closing of the crushing box. At this time, the water pump B is turned on, and the water pump B will transport the water in the water tank B to the atomizing nozzle through the connecting pipe B. The atomizing nozzle will then spray the bottom slag being crushed, thereby preventing the dust from being raised when the bottom slag is crushed;

[0019] S4. After the bottom slag is cooled, it will fall into the discharge trough of the base, and the rotating shaft will also drive the scraper B to scrape the bottom slag when it rotates. At this time, turn on the motor B again, and the motor B will drive the reciprocating screw to rotate. When the reciprocating screw rotates, it will drive the limit rod to slide in the limit groove, and then the limit rod will drive the scraper A to scrape the bottom slag in the discharge trough. When the scraper A moves, it will drive the guide rod to move. After the guide rod moves to the baffle B, it will drive the baffle B to rotate. After the baffle B is turned open, the bottom slag can be scraped out through the scraper A. After the guide rod is away from the baffle B, the baffle B will rotate due to the torsion of the torsion spring B, thereby closing the discharge trough.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The motor A drives the shaft to rotate, and the shaft A drives the cold slag plate A and the cold slag plate B to rotate. At this time, the water pump A is turned on, and the water pump A injects the water in the water tank A into the water inlet grooves of the cold slag plate A and the cold slag plate B through the connecting groove A through the connecting pipe A. As the cold slag plate A rotates, the cold slag plate A transports the bottom slag to the discharge port A through the guide groove. At this time, the bottom slag will fall to the top surface of the cold slag plate B. At this time, the water in the cold slag plate A and the cold slag plate B will absorb the heat of the bottom slag. After the absorption is completed, it will be discharged to the water outlet pipe through the water outlet groove and the connecting groove B, thereby completing the cooling of the bottom slag and the recovery of waste heat, thereby avoiding the situation where the slag cannot be completely cooled due to the accumulation of slag during cooling;

[0022] 2. The slag is transported to the guide plate by the conveyor belt, and then the guide plate guides the bottom slag to the crushing roller for crushing. The crushed bottom slag will be screened by the screening plate and then discharged into the cooling box through the feed port, thereby completing the crushing and screening of the bottom slag. When the screening plate needs to be cleaned, just rotate the block, and the screening plate can be taken out of the crushing box after the block slides off the surface of the screening plate. After the conveyor belt transports the bottom slag to the baffle A, the baffle A will rotate in the crushing box through the rotating rod A. After the bottom slag is away from the baffle A, the baffle A will rotate under the torsion of the torsion spring A, thereby completing the closing of the crushing box. At this time, turn on the water pump B, and the water pump B will transport the water in the water tank B to the atomizing nozzle through the connecting pipe B. The atomizing nozzle will then spray the bottom slag being crushed, thereby preventing the dust from being raised when the bottom slag is crushed;

[0023] 3. The rotating shaft drives the scraper B to scrape the bottom slag. At this time, turn on the motor B, which will drive the reciprocating screw to rotate. The reciprocating screw will drive the limit rod to slide in the limit groove when rotating, and then the limit rod will drive the scraper A to scrape the bottom slag in the discharge chute. The scraper A will drive the guide rod to move when it moves. After the guide rod moves to the baffle B, it will drive the baffle B to rotate. After the baffle B is turned open, the bottom slag can be scraped out through the scraper A. After the guide rod is away from the baffle B, the baffle B will be rotated by the torsion of the torsion spring B, thereby closing the discharge chute, thereby avoiding the dust in the slag flying out of the base when the slag is discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a front perspective view of a boiler high-temperature bottom ash cooling and waste heat recovery device of the present invention;

[0025] Figure 2 A cross-sectional view of a boiler high-temperature bottom ash cooling and waste heat recovery device according to the present invention;

[0026] Figure 3 The invention relates to a boiler high temperature bottom ash cooling and waste heat recovery device Figure 2 The enlarged view of point A in the middle;

[0027] Figure 4 It is a three-dimensional structural schematic diagram of a rotating shaft, a slag cooling plate A and a slag cooling plate B in a boiler high-temperature bottom slag cooling and waste heat recovery device according to the present invention;

[0028] Figure 5 A cross-sectional view of a cooling slag plate A in a boiler high-temperature bottom slag cooling and waste heat recovery device according to the present invention;

[0029] Figure 6 A boiler high temperature bottom ash cooling and waste heat recovery device according to the present invention Figure 2 The enlarged view of point B in the middle;

[0030] Figure 7 It is a schematic diagram of the explosion structure of the screening plate and the baffle A in a boiler high-temperature bottom ash cooling and waste heat recovery device of the present invention;

[0031] Figure 8 A boiler high temperature bottom ash cooling and waste heat recovery device according to the present invention Figure 7 Enlarged view of point C in the middle;

[0032] Fig. 9 It is a schematic diagram of the explosion structure of a reciprocating screw rod, a limit plate, a scraper A and a baffle B in a boiler high-temperature bottom ash cooling and waste heat recovery device of the present invention;

[0033] Fig.10 A boiler high temperature bottom ash cooling and waste heat recovery device according to the present invention Fig. 9 Enlarged view of point D in the middle.

[0034] In the figure: 100, base; 101, cooling box; 102, top plate; 103, motor A; 104, rotating shaft; 105, slag cooling plate A; 106, slag cooling plate B; 107, water tank A; 108, water pump A; 109, connecting pipe A; 110, connecting groove A; 111, connecting groove B; 112, drainage pipe; 113, discharge port A; 114, discharge port B; 115, guide plate; 116, water outlet trough; 117, water inlet trough; 200, crushing box; 201, conveyor belt; 202, water tank B; 2 03, water pump B; 204, connecting pipe B; 205, atomizing nozzle; 206, guide plate; 207, crushing roller; 208, screening plate; 209, block; 210, rotating rod A; 211, torsion spring A; 212, baffle A; 213, feed inlet; 300, motor B; 301, reciprocating screw; 302, limit groove; 303, discharge chute; 304, limit rod; 305, scraper A; 306, guide rod; 307, rotating rod B; 308, torsion spring B; 309, baffle B; 310, scraper B. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Example 1: Reference Figure 1-5The figure shows a boiler high-temperature bottom ash cooling and waste heat recovery device, comprising a base 100, a cooling box 101 is fixedly installed on the top surface of the base 100, a top plate 102 is fixedly installed on the top surface of the cooling box 101, a motor A103 is fixedly installed inside the base 100, a rotating shaft 104 is installed on the output end of the motor A103, a slag cooling plate A105 and a slag cooling plate B106 are fixedly installed on the surface of the rotating shaft 104, and a slag cooling plate A105 and a slag cooling plate B106 are fixedly installed on the top surface of the top plate 102. A water tank A107 is installed, a water pump A108 is fixedly installed on the top surface of the top plate 102, a connecting pipe A109 is installed on the input end of the water pump A108, a connecting groove A110 and a connecting groove B111 are opened inside the rotating shaft 104, a drain pipe 112 is fixedly installed inside the top plate 102, a discharge port A113 is opened through the top surface of the cold slag plate A105, a discharge port B114 is opened through the top surface of the cold slag plate B106, and the cold slag plate A106 is provided with a discharge port B115. The top surfaces of the slag plate A105 and the slag plate B106 are fixedly installed with a guide plate 115. The insides of the slag plate A105 and the slag plate B106 are respectively provided with a water outlet trough 116 and a water inlet trough 117. The water outlet trough 116 is connected with the connecting trough B111, the connecting trough B111 is connected with the drain pipe 112, and the water inlet trough 117 is connected with the connecting trough A110. The shape of the slag plate A105 is concave. It is an upward convex shape, with the rotating shaft 104 and the cooling box 101 being rotatably connected. One end of the connecting pipe A109 is connected to the output end of the water tank A107, and the other end is connected to the input end of the water pump A108. There are three groups of slag cooling plates A105 and B106, and the three groups of slag cooling plates A105 and B106 are evenly distributed on the surface of the rotating shaft 104. The slag cooling plates A105 and B106 are attached to the inner surface of the cooling box 101.

[0037] In this embodiment, the motor A103 drives the shaft 104 to rotate, and the shaft 104A drives the slag cooling plate A105 and the slag cooling plate B106 to rotate. At this time, the water pump A108 is turned on, and the water pump A108 injects the water in the water tank A107 into the water inlet groove 117 in the slag cooling plate A105 and the slag cooling plate B106 through the connecting groove A110 via the connecting pipe A109. As the slag cooling plate A105 rotates, the slag cooling plate A105 The bottom ash is transported to the discharge port A113 through the guide groove, and the bottom ash will fall to the top surface of the cooling slag plate B106. The water in the cooling slag plates A105 and B106 will absorb the heat of the bottom ash. After the absorption is completed, it will be discharged to the water outlet pipe through the water outlet groove 116 and the connecting groove B111, thereby completing the cooling of the bottom ash and recovering the waste heat, thereby avoiding the situation where the slag cannot be completely cooled due to the accumulation of slag during cooling.

[0038] Example 2: Reference Figure 2 and Figure 6-8As shown: a crushing box 200 is fixedly installed on the top surface of the top plate 102, a conveyor belt 201 is arranged on the top of the crushing box 200, a water tank B202 and a water pump B203 are fixedly installed on the top surface of the crushing box 200, the output end and the input end of the water pump B203 are both installed with connecting pipes, an atomizing nozzle 205 is fixedly installed inside the crushing box 200, a guide plate 206 is fixedly installed inside the crushing box 200, a crushing roller 207 is arranged inside the crushing box 200, a screening plate 208 is inserted inside the crushing box 200, and a block 200 is rotatably connected to the surface of the crushing box 200. 9. The inside of the crushing box 200 is rotatably connected with a rotating rod A210, the surface of which is sleeved with a torsion spring A211, and one end of the rotating rod A210 is fixedly mounted with a baffle A212. A feed port 213 is provided through the side of the crushing box 200 that contacts the top plate 102. One end of the connecting pipe B204 is connected to the output end of the water tank B202, and the other end is connected to the input end of the atomizing nozzle 205. The block 209 is slidably connected to the screening plate 208. One end of the torsion spring A211 is connected to the side of the baffle A212, and the other end is connected to the inner surface of the crushing box 200.

[0039] In this embodiment, the slag is transported to the guide plate 206 by the conveyor belt 201, and then the guide plate 206 guides the bottom slag to the crushing roller 207 for crushing. The crushed bottom slag will be screened by the screening plate 208 and then discharged into the cooling box 101 through the feed port 213, thereby completing the crushing and screening of the bottom slag. When it is necessary to clean the screening plate 208, it is only necessary to rotate the block 209. After the block 209 slides off the surface of the screening plate 208, the screening plate 208 can be taken out of the crushing box. After the slag is transported to the baffle A212, the baffle A212 will rotate in the crushing box through the rotating rod A210. After the bottom slag is away from the baffle A212, the baffle A212 will be rotated by the torsion force of the torsion spring A211, thereby completing the closing of the crushing box. At this time, the water pump B203 is turned on, and the water pump B203 will transport the water in the water tank B202 to the atomizing nozzle 205 through the connecting pipe B204. The atomizing nozzle 205 will then spray the bottom slag being crushed, thereby preventing dust from being raised when the bottom slag is crushed.

[0040] Example 3: Reference Figure 9-10As shown: a motor B300 is fixedly installed on the side of the base 100, a reciprocating screw 301 is installed on the output end of the motor B300, a limiting groove 302 is provided inside the base 100, a discharge groove 303 is provided inside the base 100, a limiting rod 304 is slidably connected inside the limiting groove 302, a scraper A305 is fixedly installed on both sides of the limiting rod 304, a guide rod 306 is fixedly installed on the surface of the scraper A305, and a rotating rod B3 is rotatably connected inside the base 100. 07. A torsion spring B308 is sleeved on the surface of the rotating rod B307, a baffle B309 is fixedly installed on one end of the rotating rod B307, a scraper B310 is fixedly installed on the surface of the rotating shaft 104, the scraper B310 is slidably connected to the base 100, the baffle B309 is slidably connected to the base 100, the limit rod 304 and the reciprocating screw rod 301 are threadedly connected, one end of the torsion spring B308 is connected to the side of the baffle B309, and the other end is connected to the inner surface of the base 100.

[0041] In this embodiment, the rotating shaft 104 drives the scraper B310 to scrape the bottom slag when it rotates. At this time, the motor B300 is turned on, and the motor B300 drives the reciprocating screw 301 to rotate. When the reciprocating screw 301 rotates, it drives the limit rod 304 to slide in the limit groove 302. Then the limit rod 304 drives the scraper A305 to scrape the bottom slag in the discharge trough 303, and the scraper A305 drives the guide rod when it moves. When the guide rod 306 moves to the baffle B309, it will drive the baffle B309 to rotate. When the baffle B309 is turned away, the bottom slag can be scraped out by the scraper A305. When the guide rod 306 is away from the baffle B309, the baffle B309 will rotate due to the torsion force of the torsion spring B308, so that the discharge chute 303 is closed, thereby avoiding the dust in the slag flying out of the base 100 when the slag is discharged.

[0042] The use method and working principle of the device: when the boiler bottom ash needs to be cooled, the motor A103 is used to drive the rotating shaft 104 to rotate, and the rotating shaft 104A will drive the slag cooling plate A105 and the slag cooling plate B106 to rotate. At this time, the water pump A108 is used, and the water pump A108 will inject the water in the water tank A107 through the connecting groove A110 into the water inlet groove 117 in the slag cooling plate A105 and the slag cooling plate B106 through the connecting pipe A109. As the slag cooling plate A105 rotates, the slag cooling plate A105 will transport the bottom ash to the discharge port A113 through the guide groove. At this time, the bottom ash will fall to the top surface of the slag cooling plate B106. At this time, the water in the slag cooling plate A105 and the slag cooling plate B106 will absorb the heat of the bottom ash. After the absorption is completed, it will be discharged to the water outlet pipe through the water outlet groove 116 and the connecting groove B111, thereby completing the cooling of the bottom ash and the recovery of waste heat.

[0043] When the bottom slag needs to be crushed and screened, the bottom slag only needs to be placed on the conveyor belt 201, and then the conveyor belt 201 will transport it to the guide plate 206, and then the guide plate 206 will guide the bottom slag to the crushing roller 207 for crushing, and the crushed bottom slag will be screened by the screening plate 208 and then discharged into the cooling box 101 through the feed port 213, thereby completing the crushing and screening of the bottom slag. When the screening plate 208 needs to be cleaned, the block 209 only needs to be rotated, and the screening plate 208 can be taken out of the crushing box after the block 209 slides off the surface of the screening plate 208;

[0044] After the conveyor belt 201 conveys the bottom slag to the baffle A212, the baffle A212 will rotate in the crushing box through the rotating rod A210. After the bottom slag is away from the baffle A212, the baffle A212 will rotate again under the torsion force of the torsion spring A211, thereby completing the closing of the crushing box. At this time, the water pump B203 is turned on, and the water pump B203 will convey the water in the water tank B202 to the atomizing nozzle 205 through the connecting pipe B204. The atomizing nozzle 205 will then spray the bottom slag being crushed, thereby preventing dust from being raised when the bottom slag is crushed;

[0045] After the bottom slag is cooled, it will fall into the discharge groove 303 of the base 100, and the rotating shaft 104 will also drive the scraper B310 to scrape the bottom slag when rotating. At this time, the motor B300 is turned on, and the motor B300 will drive the reciprocating screw 301 to rotate. When the reciprocating screw 301 rotates, it will drive the limit rod 304 to slide in the limit groove 302, and then the limit rod 304 will drive the scraper A305 to the discharge groove 303. 3 is scraped off, and the scraper A305 will drive the guide rod 306 to move when it moves. After the guide rod 306 moves to the baffle B309, it will drive the baffle B309 to rotate. After the baffle B309 is turned away, the bottom slag can be scraped out through the scraper A305. After the guide rod 306 is away from the baffle B309, the baffle B309 will be rotated by the torsion force of the torsion spring B308, thereby closing the discharge chute 303.

[0046] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A boiler high-temperature bottom ash cooling and waste heat recovery device, comprising a base (100), characterized in that: A cooling box (101) is fixedly mounted on the top surface of the base (100), a top plate (102) is fixedly mounted on the top surface of the cooling box (101), a motor A (103) is fixedly mounted inside the base (100), a rotating shaft (104) is mounted on the output end of the motor A (103), a slag cooling plate A (105) and a slag cooling plate B (106) are fixedly mounted on the surface of the rotating shaft (104), a water tank A (107) is fixedly mounted on the top surface of the top plate (102), a water pump A (108) is fixedly mounted on the top surface of the top plate (102), and a connecting pipe is mounted on the input end of the water pump A (108). A (109), a connecting groove A (110) and a connecting groove B (111) are provided inside the rotating shaft (104), a drainage pipe (112) is fixedly installed inside the top plate (102), a discharge port A (113) is provided through the top surface of the slag cooling plate A (105), a discharge port B (114) is provided through the top surface of the slag cooling plate B (106), a guide plate (115) is fixedly installed on the top surface of the slag cooling plate A (105) and the slag cooling plate B (106), and a water outlet trough (116) and a water inlet trough (117) are provided inside the slag cooling plate A (105) and the slag cooling plate B (106), respectively.

2. The boiler high temperature bottom ash cooling and waste heat recovery equipment according to claim 1, characterized in that: The water outlet groove (116) is connected to the connecting groove B (111), the connecting groove B (111) is connected to the drainage pipe (112), and the water inlet groove (117) is connected to the connecting groove A (110).

3. The boiler high temperature bottom ash cooling and waste heat recovery equipment according to claim 1, characterized in that: The shape of the slag cooling plate A (105) is concave, and the shape of the slag cooling plate A (105) is convex. The rotating shaft (104) is rotatably connected to the cooling box (101). One end of the connecting pipe A (109) is connected to the output end of the water tank A (107), and the other end is connected to the input end of the water pump A (108).

4. The boiler high temperature bottom ash cooling and waste heat recovery equipment according to claim 1, characterized in that: The number of the slag cooling plates A (105) and the slag cooling plates B (106) is three groups, and the three groups of slag cooling plates A (105) and the slag cooling plates B (106) are evenly distributed on the surface of the rotating shaft (104), and the slag cooling plates A (105) and the slag cooling plates B (106) are attached to the inner surface of the cooling box (101).

5. The boiler high temperature bottom ash cooling and waste heat recovery equipment according to claim 1, characterized in that: A crushing box (200) is fixedly mounted on the top surface of the top plate (102), a conveyor belt (201) is arranged on the top of the crushing box (200), a water tank B (202) and a water pump B (203) are fixedly mounted on the top surface of the crushing box (200), the output end and the input end of the water pump B (203) are both equipped with connecting pipes, an atomizing nozzle (205) is fixedly mounted inside the crushing box (200), a material guide plate (206) is fixedly mounted inside the crushing box (200), a crushing roller (207) is arranged inside the crushing box (200), a screening plate (208) is inserted inside the crushing box (200), and a clamping block (209) is rotatably connected to the surface of the crushing box (200).

6. The boiler high temperature bottom ash cooling and waste heat recovery equipment according to claim 5, characterized in that: A rotating rod A (210) is rotatably connected inside the crushed material box (200), a torsion spring A (211) is sleeved on the surface of the rotating rod A (210), a baffle A (212) is fixedly installed on one end of the rotating rod A (210), and a feed port (213) is penetrated through the side of the crushed material box (200) that contacts the top plate (102).

7. The boiler high temperature bottom ash cooling and waste heat recovery equipment according to claim 5, characterized in that: One end of the connecting pipe B (204) is connected to the output end of the water tank B (202), and the other end is connected to the input end of the atomizing nozzle (205); the block (209) is slidably connected to the screening plate (208); one end of the torsion spring A (211) is connected to the side of the baffle A (212), and the other end is connected to the inner surface of the crushing box (200).

8. The boiler high temperature bottom ash cooling and waste heat recovery equipment according to claim 1, characterized in that: A motor B (300) is fixedly mounted on the side of the base (100), a reciprocating screw rod (301) is mounted on the output end of the motor B (300), a limiting groove (302) is provided inside the base (100), a material discharge groove (303) is provided inside the base (100), a limiting rod (304) is slidably connected inside the limiting groove (302), a scraper A (305) is fixedly mounted on both sides of the limiting rod (304), a guide rod (306) is fixedly mounted on the surface of the scraper A (305), a rotating rod B (307) is rotatably connected inside the base (100), a torsion spring B (308) is sleeved on the surface of the rotating rod B (307), a baffle B (309) is fixedly mounted on one end of the rotating rod B (307), and a scraper B (310) is fixedly mounted on the surface of the rotating shaft (104).

9. The boiler high temperature bottom ash cooling and waste heat recovery equipment according to claim 8, characterized in that: The scraper B (310) is slidably connected to the base (100), the baffle B (309) is slidably connected to the base (100), the limit rod (304) is threadedly connected to the reciprocating screw rod (301), one end of the torsion spring B (308) is connected to the side of the baffle B (309), and the other end is connected to the inner surface of the base (100).

10. A method for using a boiler high-temperature bottom ash cooling and waste heat recovery device, characterized in that: The boiler high-temperature bottom ash cooling and waste heat recovery equipment according to any one of claims 1 to 9 is used, comprising the following steps: S1. When the high-temperature bottom ash of the boiler needs to be cooled, the motor A (103) is used to drive the rotating shaft (104) to rotate, and the rotating shaft (104) A will drive the slag cooling plate A (105) and the slag cooling plate B (106) to rotate. At this time, the water pump A (108) is turned on, and the water pump A (108) will inject the water in the water tank A (107) through the connecting pipe A (109) and the connecting groove A (110) into the water inlet grooves of the slag cooling plate A (105) and the slag cooling plate B (106). (117), and as the slag cooling plate A (105) rotates, the slag cooling plate A (105) will transport the bottom slag to the discharge port A (113) through the guide groove, and the bottom slag will fall to the top surface of the slag cooling plate B (106). At this time, the water in the slag cooling plate A (105) and the slag cooling plate B (106) will absorb the heat of the bottom slag, and after the absorption is completed, it will be discharged to the water outlet pipe through the water outlet groove (116) and the connecting groove B (111), thereby completing the cooling of the bottom slag and the recovery of waste heat; S2. When the bottom slag needs to be crushed and screened, the bottom slag only needs to be placed on the conveyor belt (201), and then the conveyor belt (201) will transport it to the guide plate (206), and then the guide plate (206) will guide the bottom slag to the crushing roller (207) for crushing, and the crushed bottom slag will be screened by the screening plate (208) and then discharged into the cooling box (101) through the feed port (213), thereby completing the crushing and screening of the bottom slag. When the screening plate (208) needs to be cleaned, the block (209) only needs to be rotated, and the screening plate (208) can be taken out of the crushing box after the block (209) slides off the surface of the screening plate (208); S3. After the conveyor belt (201) conveys the bottom slag to the baffle A (212), the baffle A (212) rotates in the crushing box through the rotating rod A (210). After the bottom slag is away from the baffle A (212), the baffle A (212) is rotated by the torsion force of the torsion spring A (211), thereby completing the closing of the crushing box. At this time, the water pump B (203) is turned on. The water pump B (203) conveys the water in the water tank B (202) to the atomizing nozzle (205) through the connecting pipe B (204). The atomizing nozzle (205) then sprays the bottom slag being crushed, thereby preventing dust from being raised when the bottom slag is crushed. S4. After the bottom slag is cooled, it will fall into the discharge groove (303) of the base (100). When the rotating shaft (104) rotates, it will also drive the scraper B (310) to scrape off the bottom slag. At this time, the motor B (300) is turned on, and the motor B (300) drives the reciprocating screw (301) to rotate. When the reciprocating screw (301) rotates, it will drive the limit rod (304) to slide in the limit groove (302). Then, the limit rod (304) drives the scraper A (305) to the discharge groove ( The bottom slag in the discharge trough (303) is scraped off, and the scraper A (305) drives the guide rod (306) to move when moving. When the guide rod (306) moves to the baffle B (309), it drives the baffle B (309) to rotate. When the baffle B (309) is turned away, the bottom slag can be scraped out through the scraper A (305). When the guide rod (306) is away from the baffle B (309), the baffle B (309) is rotated by the torsion force of the torsion spring B (308), thereby closing the discharge trough (303).

Images