Steam recovery device for coal power production

Abstract

The application discloses a steam recovery device for coal power production, which comprises a recovery box body, a recovery assembly arranged in the recovery box body, a supporting seat fixedly connected to the lower end of one side of the recovery box body, a driving motor fixedly connected to the top end of the supporting seat, a stirring assembly fixedly connected to the output end of the driving motor, a circulating assembly arranged on the outside of the recovery box body, a closing assembly arranged on the top end of the recovery box body, a controller fixedly connected to the top end of the closing assembly, an injection inlet arranged on the top end of the recovery box body, an outlet arranged on one side of the recovery box body, an inlet arranged on one side of the top end of the recovery box body, and a temperature sensor arranged on the top end of the recovery box body. Compared with the prior art, the steam recovery device for coal power production can guarantee the stability of the cooling and recovery efficiency of steam, improve the cooling and recovery efficiency of steam, and save time and effort.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal power production, in particular to a steam recovery device for coal power production. BACKGROUND

[0002] At present, a large amount of water vapor or flue gas will be produced in the production process of the coal power industry, and most of the high-temperature water vapor or flue gas is discharged into the air. The high-temperature water vapor is not effectively utilized, which will cause the temperature of the environment to rise, and most importantly, it will cause waste of water resources.

[0003] A steam recovery device for coal power production is disclosed in Chinese Patent No. CN217526428, which includes a recovery tank, the upper side of the recovery tank is fixedly connected with an air inlet pipe, the outlet end of the air inlet pipe is fixedly connected with a cooling spiral pipe located inside the recovery tank, the inner side wall of the recovery tank is fixedly connected with a plurality of guide plates matched with the output end of the cooling spiral pipe, the upper side of the recovery tank is fixedly connected with a circular arc sleeve, the upper end of the circular arc sleeve is fixedly connected with a fixed sleeve, the inner side upper top surface of the fixed sleeve is fixedly connected with a spring, the lower end of the spring is fixedly connected with a sliding block which is slidingly sleeved with the inner side of the fixed sleeve. The utility model has the advantages of simple structure, which can fully recover steam and heat, reduce heat dissipation, and make steam recycling again.

[0004] However, during the steam condensation process of the device, the heat in the steam will be absorbed by the cooling water, causing the temperature of the cooling water to gradually rise, thereby gradually reducing the cooling and recovery efficiency of the cooling water on the steam. If the steam needs to be kept cool and recovered, the cooling water needs to be frequently replaced, which is time-consuming and labor-intensive. Therefore, we propose a new steam recovery device for coal power production. SUMMARY

[0005] The main purpose of the present application is to provide a steam recovery device for coal power production, which can effectively solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows: a steam recovery device for coal power production, comprising a recovery tank body, a recovery assembly is arranged inside the recovery tank body, a support seat is fixedly connected to the lower end of one side of the outer part of the recovery tank body, a driving motor is fixedly connected to the top end of the support seat, an agitating assembly is fixedly connected to the output end of the driving motor, a circulating assembly is arranged outside the recovery tank body, a closing assembly is arranged at the top end of the recovery tank body, a controller is fixedly connected to the top end of the closing assembly, an injection inlet is arranged at the top end of the recovery tank body, a flow outlet is formed in one side of the recovery tank body, a flow inlet is formed in one side of the top end of the recovery tank body, and a temperature sensor is arranged at the top end inside the recovery tank body.

[0007] As a further description of the above technical solution, the recycling assembly comprises a cooling elbow, a plurality of heat-conducting plates are staggered and inserted on the cooling elbow, a heat-dissipating plate is fixedly connected between the top ends of the plurality of heat-conducting plates, and a plurality of heat-dissipating strips are fixedly connected to the two sides of the heat-dissipating plate.

[0008] As a further description of the above technical solution, one end of the cooling elbow penetrates through the side wall of the recycling box to the outside, and a connecting piece is arranged at the end for connecting with a steam conveying pipeline, and the heat-dissipating strips arranged on the two sides of the heat-dissipating plate penetrate through the side wall of the recycling box and are in contact with the outside air.

[0009] As a further description of the above technical solution, the stirring assembly comprises a driving wheel and three driven wheels, the driving wheel and the three driven wheels are drivingly connected through a transmission belt, a connecting shaft is fixedly connected to one side of the driving wheel and the three driven wheels, a rotating drum is fixedly connected to the connecting shaft, and a plurality of stirring pieces are uniformly fixedly connected to the outside of the rotating drum.

[0010] As a further description of the above technical solution, the driving wheel and the three driven wheels are arranged on one side outside the recycling box, the driving wheel is fixedly connected to the output end of a driving motor, the connecting shaft penetrates through the side wall of the recycling box and is fixedly connected with the rotating drum, and one end of the rotating drum away from the connecting shaft is rotatably connected with the inner wall of the recycling box.

[0011] As a further description of the above technical solution, the circulating assembly comprises a cooling water tank and a transition water tank, a water outlet is arranged at the bottom end of the cooling water tank, a sliding groove is arranged on one side of the cooling water tank, a transition inlet is arranged on one side of the transition water tank, a water outlet is arranged at the bottom end of the transition water tank, a water pump is fixedly connected to the top end of the transition water tank, a water suction pipe is arranged on one side of the water pump, and a water conveying pipe is arranged on the other side of the water pump.

[0012] As a further description of the above technical solution, the cooling water tank is fixedly connected to one side of the top end of the recycling box, the transition water tank is fixedly connected to one side of the upper end of the recycling box, the water outlet is in communication with the flow inlet, the transition inlet is in communication with the flow outlet, the water suction pipe penetrates through the tank wall of the transition water tank and extends to the inner lower end thereof, and one end of the water conveying pipe penetrates through the side wall of the cooling water tank and is in communication with the inside thereof.

[0013] As a further description of the above technical solution, the closing assembly comprises a containing box, two telescopic rods are symmetrically arranged inside the containing box, a spring is sleeved on each telescopic rod, a magnet plate is fixedly connected between the telescopic ends of the two telescopic rods, an electromagnet plate is arranged at the top end of the magnet plate, two hinge pieces are symmetrically arranged inside the containing box, a blocking plate is fixedly connected between one side of the two hinge pieces, two hinge rods are symmetrically hinged on each hinge piece, and a hinge seat is hinged on each hinge rod.

[0014] As the further description of the above technical solution, the containing box is a box type structure with an open bottom end, the containing box is fixedly connected at the top end of the recycling box body, the telescopic rod is fixedly connected at the top end of the recycling box body, the spring is fixedly connected between the bottom end of the magnet plate and the top end of the recycling box body, the hinged part is slidably connected with the side wall of the containing box at the end away from the hinged rod, the blocking plate is matched with the sliding groove and is slidably connected, and the two hinged seats are fixedly connected at the bottom end of the magnet plate, and the other two hinged seats are fixedly connected at the top end of the recycling box body.

[0015] As the further description of the above technical solution, the controller is electrically connected with the electromagnetic plate, the temperature sensor is electrically connected with the controller, and the water pump is electrically connected with the controller.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] By setting the recycling box body, the recycling assembly, the supporting seat, the driving motor, the stirring assembly, the circulating assembly, the closing assembly, the controller, the injection port, the flow outlet, the flow inlet and the temperature sensor, the cooling water can circulate and flow, the temperature of the cooling water for cooling and recycling the steam can be stabilized, the temperature of the cooling water will not increase due to the absorption of heat in the steam, and the cooling and recycling efficiency of the cooling water on the steam is reduced, that is, the temperature sensor detects the temperature in the recycling box body, when the temperature reaches a certain height, the temperature sensor converts the temperature signal into an electric signal and sends it to the controller, the controller sends a power-on command to the electromagnetic plate, under the cooperation of the closing assembly, the low-temperature cooling water in the cooling water tank in the circulating assembly flows into the recycling box body to neutralize the temperature of the cooling water therein, so that the temperature in the recycling box body is reduced, and the temperature sensor transmits the temperature information at this time to the controller, the controller controls the electromagnetic plate to be powered off, and under the action of the closing assembly, the cooling water tank is in a closed state, the temperature of the cooling water in the recycling box body is maintained in a certain interval, so that the steam condensation work is stably carried out, and when the water level in the recycling box body rises, the cooling water enters the transition water tank through the flow outlet until no cooling water flows into the transition water tank, at this time, the electromagnetic plate is powered off, and the controller controls the water pump to be opened to pump the cooling water in the transition water tank into the cooling water tank for cooling and cooling standby, whenever the temperature in the recycling box body rises, the previous steps are repeated to maintain the temperature of the cooling water in the recycling box body in a stable state, and the design of the stirring assembly also stirs the cooling water in the recycling box body, so that the cooling water fully contacts the cooling elbow pipe, and the recycling assembly enables the cooling water in the recycling box body to exchange heat with the external air, thereby improving the steam recycling efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic diagram of the steam recycling device for coal power production.

[0019] Figure 2 It is the internal structure schematic view of a steam recovery device for coal power production of the present application.

[0020] Figure 3 It is the recovery assembly structure schematic view of a steam recovery device for coal power production of the present application.

[0021] Figure 4 It is the stirring assembly structure schematic view of a steam recovery device for coal power production of the present application.

[0022] Figure 5 It is the circulation assembly structure sectional view of a steam recovery device for coal power production of the present application.

[0023] Figure 6 It is the closing assembly structure sectional view of a steam recovery device for coal power production of the present application.

[0024] Figure 7 It is the electrical connection schematic view of a steam recovery device for coal power production of the present application.

[0025] In the figure: 1, recovery box body; 2, recovery assembly; 3, support seat; 4, driving motor; 5, stirring assembly; 6, circulation assembly; 7, closing assembly; 8, controller; 9, injection port; 10, flow outlet; 11, flow inlet; 12, temperature sensor; 21, cooling elbow; 22, heat conduction plate; 23, heat dissipation plate; 24, heat dissipation strip; 51, transmission wheel; 52, driven wheel; 53, transmission belt; 54, connecting shaft; 55, rotating drum; 56, stirring piece; 61, cooling water tank; 62, transition water tank; 63, lower water outlet; 64, sliding groove; 65, transition port; 66, drain outlet; 67, water pump; 68, water suction pipe; 69, water delivery pipe; 71, containing box; 72, telescopic rod; 73, spring; 74, magnet plate; 75, electromagnetic plate; 76, hinged piece; 77, blocking plate; 78, hinged rod; 79, hinged seat. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, and achieved purpose and effects of the present application easy to understand, the present application is further described below in combination with specific embodiments.

[0027] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be broadly understood, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] Please refer to Figures 1-7 The present application provides a technical solution: a steam recovery device for coal power production, comprising a recovery box body 1, a recovery assembly 2 is arranged inside the recovery box body 1, the recovery assembly 2 comprises a cooling elbow pipe 21, the cooling elbow pipe 21 is a flat elbow pipe, and one end thereof penetrates through the side wall of the recovery box body 1 to the outside and is connected in communication with a steam conveying pipeline, a plurality of heat-conducting plates 22 are inserted through the cooling elbow pipe 21 from top to bottom, and the heat-conducting plates 22 are distributed in a staggered manner, so that the internal passage of the cooling elbow pipe 21 presents a zigzag state, a plurality of heat-conducting plates 22 are fixedly connected between the top ends of the heat-conducting plates 22, and a heat dissipation plate 23 is fixedly connected on both sides of the heat dissipation plate 23, and the heat dissipation strips 24 on both sides penetrate through the side wall of the recovery box body 1 and are in contact with the external air, so that the inside of the cooling elbow pipe 21 and the inside of the recovery box body 1 can exchange heat with the external air through the heat-conducting plates, the heat dissipation plate 23 and the heat dissipation strips 24.

[0030] The lower end of the outer side of the recycling box body 1 is fixedly connected with a supporting seat 3, the top end of the supporting seat 3 is fixedly connected with a driving motor 4, the output end of the driving motor 4 is fixedly connected with an agitating assembly 5, the agitating assembly 5 is used for agitating the cooling water injected into the recycling box body 1, the agitation can make the temperature of the cooling water more balanced, and the situation of high temperature at the upper end and low temperature at the lower end or low temperature at the upper end and high temperature at the lower end will not occur, the agitating assembly 5 comprises a transmission wheel 51 and three driven wheels 52, the transmission wheel 51 and the three driven wheels 52 are in trapezoidal distribution, and are all arranged on the outer side of the recycling box body 1, the transmission wheel 51 is fixedly connected with the output end of the driving motor 4, the transmission wheel 51 and the three driven wheels 52 are drivingly connected through a transmission belt 53, the transmission wheel 51 and the driven wheels 52 are all fixedly connected with a connecting shaft 54 on one side, the connecting shaft 54 penetrates through the side wall of the recycling box body 1 and is fixedly connected with a rotating drum 55, the end, away from the connecting shaft 54, of the rotating drum 55 is rotatably connected with the inner wall of the recycling box body 1, and a plurality of agitating blades 56 are uniformly fixedly connected on the outer side of the rotating drum 55.

[0031] The outer side of the recycling box body 1 is provided with a circulating assembly 6, the circulating assembly 6 comprises a cooling water tank 61 and a transition water tank 62, in the initial state, the cooling water tank 61 is filled with normal cooling water, the cooling water tank 61 is fixedly connected on the top end of the recycling box body 1, a water outlet 63 is formed in the bottom end of the cooling water tank 61, a sliding groove 64 is formed in the lower end of one side of the cooling water tank 61, the transition water tank 62 is fixedly connected on the outer side of the recycling box body 1, a transition port 65 is formed in one side of the transition water tank 62, a drain port 66 is arranged in the bottom end of the transition water tank 62, a water pump 67 is fixedly connected on the top end of the transition water tank 62, a water suction pipe 68 is connected on one side of the water pump 67, the water suction pipe 68 extends into the inner lower end of the transition water tank 62, and a water delivery pipe 69 is arranged on the other side of the water pump 67, the water delivery pipe 69 extends along the outer wall of the recycling box body 1 until it is connected with the inner part of the cooling water tank 61.

[0032] The outer top end of the recycling box body 1 is provided with a closing assembly 7, which serves to close and open the water outlet 63 of the cooling water tank 61. The closing assembly 7 comprises a containing box 71, which is a box-shaped structure with an open bottom end. The containing box 71 is fixedly connected to the top end of the recycling box body 1. Two telescopic rods 72 are symmetrically arranged inside the containing box 71. The bottom ends of the two telescopic rods 72 are fixedly connected to the top end of the recycling box body 1. Springs 73 are sleeved on the telescopic rods 72. A magnet plate 74 is fixedly connected between the bottom end of the spring 73 and the top end of the recycling box body 1. The top end of the magnet plate 74 is provided with an electromagnetic plate 75. The magnet plate 74 and the electromagnetic plate 75 are the same size and match the internal space of the containing box 71. The magnet plate 74 can slide up and down in the containing box 71. The electromagnetic plate 75 is fixedly connected to the inner top end of the containing box 71. When the electromagnetic plate 75 is electrified, it will generate an attractive magnetic force with the magnet plate 74. Two hinge members 76 are symmetrically arranged inside the containing box 71. One end of each hinge member 76 is slidingly connected to the containing box 71. A blocking plate 77 is fixedly connected between the ends of the two hinge members 76. The blocking plate 77 is slidingly connected to the sliding groove 64 formed on the cooling water tank 61. The other end of each hinge member 76 is symmetrically hingedly connected to two hinge rods 78. The two hinge rods 78 are symmetrically arranged in an up-down manner. Hinge seats 79 are hingedly connected to the hinge rods 78. Two of the hinge seats 79 are fixedly connected to the bottom end of the magnet plate 74. The other two hinge seats 79 are fixedly connected to the top end of the recycling box body 1. As shown in Figure 6 the closing assembly 7 is in a state where the blocking plate 77 does not block the water outlet 63 of the cooling water tank 61. The electromagnetic plate 75 is in an electrified state. The two springs 73 and the telescopic rods 72 are in an elongated state. The attractive magnetic force generated between the electromagnetic plate 75 and the magnet plate 74 is greater than the sum of the elastic forces generated by the two springs 73 in the maximum elongated state.

[0033] A controller 8 is fixedly connected to the outer top end of the containing box 71. The controller 8 is electrically connected to the water pump 67 and the electromagnetic plate 75. An injection inlet 9 is formed on the top end of the recycling box body 1. A flow outlet 10 is formed on one side of the recycling box body 1. The injection inlet 9 is used to inject cooling liquid into the recycling box body 1. It is specified that the height of the injected cooling liquid in the recycling box body 1 should be higher than the top end of the cooling elbow pipe 21 and lower than the inner bottom end of the flow outlet 10. The flow outlet 10 is in communication with the transition port 65 formed on the transition water tank 62. In this way, the internal space of the recycling box body 1 is in communication with the internal space of the transition water tank 62 through the flow outlet 10, the transition port 65, and the transition water tank 62. A flow inlet 11 is formed on one side of the top end of the recycling box body 1. The flow inlet 11 is in communication with the water outlet 63, so that the internal space of the recycling box body 1 is in communication with the internal space of the cooling water tank 61. A temperature sensor 12 is arranged on the inner top end of the recycling box body 1. The output end of the temperature sensor 12 is electrically connected to the input end of the controller 8.

[0034] It needs to be explained that the steam recovery device for coal power production, in the steam recovery work, the initial state of the device is that the cooling water tank 61 stores the normal cooling water of neutral temperature, the electromagnetic plate 75 in the closed assembly 7 is in the power-off state, the sealing baffle 77 seals the water outlet of the cooling water tank 61, first, the cooling water is injected into the recovery tank body 1 from the injection port 9, until the level of the cooling water is higher than the top end of the cooling elbow pipe 21, but lower than the inner bottom end of the outlet port 10, then the driving motor 4 is started, the driving motor 4 drives the transmission wheel 51 to rotate, under the action of the transmission belt 53, the three driven wheels 52 also rotate synchronously, thereby driving the connecting shaft 54 and the rotating drum 55 fixedly connected thereto and the stirring blades 56 on the rotating drum 55 to rotate, so that the cooling water is in a stirred state, then the end of the cooling elbow pipe 21 extending out of the recovery tank body 1 is connected with the steam conveying pipeline, with the conveying of steam, the steam flows in the cooling elbow pipe 21, and the arrangement of the plurality of staggered heat-conducting plates 22 on the cooling elbow pipe 21 not only can transfer the heat brought by the steam to the heat dissipation plate 23 and the heat dissipation strip 24, thereby exchanging heat with the external air to reduce the temperature of the cooling elbow pipe 21, but also can stagger and isolate the internal passages of the cooling elbow pipe 21, so that the flow path of the steam in the horizontal area of the cooling elbow pipe 21 changes from straight flow to tortuous flow, thereby prolonging the time of the steam in the cooling elbow pipe 21 and improving the cooling and recovery efficiency of the steam, with the steam fully contacting the cooling water through the cooling elbow pipe 21, the steam mist is liquefied and then flows into the recovery tank body 1 and the cooling water, and the heat brought by the steam is absorbed by the cooling water, so that the temperature of the cooling water slowly rises, at this time, the temperature of the inside of the recovery tank body 1 also rises, at this time, the temperature sensor 12 detects the temperature in the recovery tank body in real time, when the temperature reaches a certain height, the temperature sensor 12 converts the temperature signal into an electric signal and sends it to the controller 8, the controller 8 sends a power-on command to the electromagnetic plate 75, the electromagnetic plate 75 generates an attractive magnetic force with the magnet plate 74 after being powered on, the magnetic force drives the magnet plate 74 and the electromagnetic plate 75 to be attracted together, thereby driving the spring 73 and the telescopic rod 72 to extend, at the same time, the hinged rod 78 and the hinge piece 76 are rotated, so that the angle between the hinged rod 78 and the hinge piece 76 becomes smaller, thereby pulling the hinge piece 76 to move towards the inside of the containing box 71, at this time, the sealing baffle 77 is moved synchronously, the sealing baffle 77 does not seal the water outlet 63, the cooling water with relatively low temperature in the cooling water tank 61 flows into the recovery tank body 1 to cool the cooling water with relatively high temperature in the recovery tank body 1, when the temperature of the cooling water in the recovery tank body 1 decreases to a certain extent, the controller 8 receives the real-time temperature information fed back by the temperature sensor 12, then controls the electromagnetic plate 75 to be powered off, after the electromagnetic plate 75 is powered off, the attractive magnetic force disappears, the elastic force generated by the reset of the spring 73 drives the magnet plate 74 to move downwards in the containing box 71,Under the mutual hinging action of the hinged rod 78, the hinged seat 79 and the hinge piece 76, the hinge piece 76 will drive the sealing baffle 77 to move to the direction of the water outlet 63 until the water outlet 63 is completely sealed, at this time, the temperature of the cooling water in the recovery tank 1 is kept in a specific interval to ensure the stable operation of the steam condensation work, and the water surface of the cooling water in the recovery tank 1 is raised and then enters the transition water tank 62 through the outlet 10 until the transition water tank 62 is not flowing into the cooling water, it is explained that, at the same time when the controller 8 controls the electromagnetic plate 75 to be powered off, the water pump 67 will be controlled to operate to pump the cooling water in the transition water tank 62 to the cooling water tank 61 for cooling and cooling standby, whenever the temperature in the recovery tank 1 rises, the previous steps will be repeated to keep the temperature of the cooling water in the recovery tank 1 in a stable state, and the stirring assembly 5 is always in the running state during the whole steam cooling and recovery process, the stirring can make the temperature in the cooling water more balanced, and the high-low or low-high situation will not occur, which is more conducive to the recovery of steam. Compared with the existing steam recovery device for coal power production, the present application can ensure the stability of the cooling and recovery efficiency of the steam, improve the cooling and recovery efficiency of the steam, save time and effort.

[0035] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. It should be understood by those skilled in the art that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A steam recovery device for coal-fired power generation, comprising a recovery tank (1), characterized in that, The recycling box (1) is equipped with a recycling component (2) inside. A support base (3) is fixedly connected to the lower end of one side of the recycling box (1). A drive motor (4) is fixedly connected to the top of the support base (3). An agitation component (5) is fixedly connected to the output end of the drive motor (4). A circulation component (6) is provided outside the recycling box (1). A closing component (7) is provided at the top of the recycling box (1). A controller (8) is fixedly connected to the top of the closing component (7). An injection port (9) is provided at the top of the recycling box (1). An outlet (10) is opened on one side of the recycling box (1). An inlet (11) is opened on one side of the top of the recycling box (1). A temperature sensor (12) is provided at the top inside the recycling box (1). The circulation assembly (6) includes a cooling water tank (61) and a transition water tank (62). The cooling water tank (61) is fixedly connected to one side of the top of the recovery tank (1), and the transition water tank (62) is fixedly connected to the upper side of one side of the recovery tank (1). The cooling water tank (61) has a drain outlet (63) at its bottom end, which is connected to the inlet (11). The cooling water tank (61) has a sliding groove (64) on one side, and the transition water tank (62) has a transition port (65) on one side. The transition port (65) is connected to the outlet (10). The bottom of the transition water tank (62) is provided with a drain port (66). The top of the transition water tank (62) is fixedly connected with a water pump (67). A water pump (68) is provided on one side of the water pump (67). The water pump (68) penetrates the wall of the transition water tank (62) and extends into its lower interior. A water delivery pipe (69) is provided on the other side of the water pump (67). One end of the water delivery pipe (69) penetrates the side wall of the cooling water tank (61) and is connected to its interior. The closing assembly (7) includes a receiving box (71), which is a box-shaped structure with an open bottom. The bottom of the receiving box (71) is fixedly connected to the top of the recycling box (1). Two telescopic rods (72) are symmetrically arranged inside the receiving box (71). The bottom of the telescopic rods (72) is fixedly connected to the top of the recycling box (1). A spring (73) is sleeved on each of the telescopic rods (72). The spring (73) is fixedly connected between the bottom of the magnet plate (74) and the top of the recycling box (1). A magnet plate (74) is fixedly connected between the telescopic ends of the two telescopic rods (72). An electromagnetic plate (75) is provided at the top of the magnet plate (74). The container (71) is symmetrically provided with two hinges (76) inside. A sealing plate (77) is fixedly connected between one side of the two hinges (76). The sealing plate (77) is adapted to the sliding groove (64) and is slidably connected. Two hinge rods (78) are symmetrically hinged on each of the hinges (76). The end of the hinge (76) away from the hinge rod (78) is slidably connected to the side wall of the container (71). A hinge seat (79) is hinged on each of the hinge rods (78). Two of the hinge seats (79) are fixedly connected to the bottom of the magnet plate (74), and the other two hinge seats (79) are fixedly connected to the top of the recycling box (1). The controller (8) is electrically connected to the electromagnetic plate (75), the temperature sensor (12) is electrically connected to the controller (8), and the water pump (67) is electrically connected to the controller (8).

2. The steam recovery device for coal-fired power generation according to claim 1, characterized in that, The recycling component (2) includes a cooling bend (21), on which several heat-conducting plates (22) are interleaved, and a heat dissipation plate (23) is fixedly connected between the top ends of several heat-conducting plates (22). Several heat dissipation strips (24) are fixedly connected to both sides of the heat dissipation plate (23).

3. A steam recovery device for coal-fired power generation according to claim 2, characterized in that, One end of the cooling bend (21) penetrates the side wall of the recycling box (1) to the outside, and the end is provided with a connector for connecting to the steam conveying pipe. The heat dissipation strips (24) provided on both sides of the heat dissipation plate (23) penetrate the side wall of the recycling box (1) and are in contact with the outside air.

4. A steam recovery device for coal-fired power generation according to claim 1, characterized in that, The agitation assembly (5) includes a drive wheel (51) and three driven wheels (52). The drive wheel (51) and the three driven wheels (52) are connected by a drive belt (53). A connecting shaft (54) is fixedly connected to one side of both the drive wheel (51) and the driven wheels (52). A rotating drum (55) is fixedly connected to the connecting shaft (54). Several agitator blades (56) are evenly fixedly connected to the outside of the rotating drum (55).

5. A steam recovery device for coal-fired power generation according to claim 4, characterized in that, The transmission wheel (51) and the three driven wheels (52) are all located on the outside side of the recycling box (1). The transmission wheel (51) is fixedly connected to the output end of the drive motor (4). The connecting shaft (54) passes through the side wall of the recycling box (1) and is fixedly connected to the rotating drum (55). The end of the rotating drum (55) away from the connecting shaft (54) is rotatably connected to the inner wall of the recycling box (1).

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