Boiler deslagging mechanism of thermal power plant

Abstract

The utility model provides a thermal power plant boiler deslagging mechanism which comprises a boiler shell, a combustion chamber and a waste residue chamber are respectively arranged in the boiler shell, a deslagging port is further arranged at the bottom of the boiler shell, a slag separating mechanism is arranged below the deslagging port and comprises a mounting frame, and a vertical lifting mechanism is arranged in the height direction of the mounting frame. The utility model discloses a boiler deslagging mechanism of a thermal power plant, which comprises a vertical lifting mechanism and a deslagging port, a dangling mechanism is further arranged above the vertical lifting mechanism, the dangling mechanism comprises a swinging beam, a spiral conveyer is arranged above the swinging beam, the spiral conveyer is provided with a feeding port and a discharging port, and the feeding port is arranged at a rotating center point of the dangling mechanism and is arranged below the deslagging port. The slag separating mechanism is arranged at the slag discharging opening and comprises the vertical lifting mechanism and the dangling mechanism arranged on the lifting mechanism, and the spiral conveyor is arranged above the dangling mechanism, so that slag at the slag discharging opening can be conveyed to different discharging points, and the problem of slag blockage at the discharging points is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power equipment, in particular to a slag discharge mechanism for a boiler in a thermal power plant. Background Art

[0002] A thermal power plant, or thermal power plant for short, is a modern factory that uses coal, oil, and natural gas as fuel and produces electricity through a series of complex conversion processes. In its production process, the fuel is burned in the boiler, and the heat released heats the water, converting it into high-temperature and high-pressure steam. The steam then enters the steam turbine, driving it to rotate, thereby realizing the conversion of thermal energy into mechanical energy. Next, the steam turbine is connected to the generator, and its rotation further drives the generator to operate, ultimately converting mechanical energy into electrical energy and supplying it to the general public. In this series of processes, the combustion of coal in the boiler will produce a certain amount of waste slag.

[0003] Traditional slag removal device designs usually have fixed slag discharge positions, which may pose challenges in some cases. Especially in the case of high-load operation or untimely cleaning, if the slag at the discharge point is not cleaned in time, it is easy to cause material accumulation at the discharge point, which not only affects the slag removal efficiency, but also may pose a threat to the continuous and stable operation of the boiler. Therefore, it is necessary to optimize the traditional slag removal device to improve the slag discharge efficiency and ensure the smooth operation of the thermal power plant. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a slag discharge mechanism for a boiler in a thermal power plant, so as to solve the problem of fixing the slag discharge position.

[0005] In order to solve the above technical problems, the utility model provides a slag discharge mechanism for a boiler in a thermal power plant, comprising a boiler shell, wherein a combustion chamber and a waste slag chamber are respectively arranged inside the boiler shell, a slag discharge port is also arranged at the bottom of the boiler shell, a slag separation mechanism is arranged below the slag discharge port, the slag separation mechanism comprises a mounting frame, a vertical lifting mechanism is arranged in the height direction of the mounting frame, a suspension mechanism is also arranged above the vertical lifting mechanism, the suspension mechanism comprises a swing beam, a screw conveyor is arranged above the swing beam, the screw conveyor has a feed port and a discharge port, the feed port is arranged at the rotation center point of the suspension mechanism and is arranged below the slag discharge port.

[0006] In a preferred solution, the mounting frame includes a base plate, on which two parallel rectangular tubes are mounted, a horizontal plate is connected above the rectangular tubes, and a connecting plate is mounted on the horizontal plate.

[0007] In a preferred embodiment, the vertical lifting mechanism includes a column, a first mounting plate is provided at the bottom of the column, a first motor is provided on the first mounting plate, a first pulley is provided on the extending shaft of the first motor, two second mounting plates are installed on one side of the column, a screw is installed between the two second mounting plates, a second pulley is provided at the bottom of the screw, a synchronous belt is connected between the first pulley and the second pulley, a guide rail is also provided between the two second mounting plates, a slider connected to the screw is provided on the guide rail, the slider is connected to the connecting plate of the mounting frame, and a limit rod is also provided above the slider.

[0008] In a preferred embodiment, the suspension mechanism includes a base plate installed above the column, a second motor is provided on the base plate pointing vertically upward, a third pulley is installed on the extended shaft of the second motor, a fixed seat is also installed on the base plate, a rotating shaft is provided in the fixed seat, a fourth pulley is installed on the rotating shaft, a synchronous belt is installed between the fourth pulley and the third pulley, a slewing bearing is also provided on the fixed seat, an outer ring of the slewing bearing is fixed on the fixed seat, a rotating disk is provided above the slewing bearing, the rotating disk is fixed to the inner ring of the slewing bearing, the rotating shaft is fixed on the rotating disk, an extended plate is provided above the rotating disk, and the swing beam is provided on the extended plate.

[0009] In a preferred solution, a protrusion is provided on the rotating shaft, the fourth pulley rests on the protrusion, a fixing ring is provided below the fourth pulley, the fixing ring has threads, threads are also provided on the rotating shaft, and the fixing ring is threadedly connected to the rotating shaft.

[0010] In a preferred solution, the screw conveyor further comprises a third motor, and a screw rod is connected to the extension rod of the third motor.

[0011] The beneficial effect of the utility model is as follows: since the utility model is provided with a slag discharge mechanism for a thermal power plant boiler, a slag separation mechanism is provided at the slag discharge port, the slag separation mechanism includes a vertical lifting mechanism and a suspension mechanism arranged on the lifting mechanism fan, and a screw conveyor is provided above the suspension mechanism, the slag at the slag discharge port can be transported to different unloading points, thereby reducing the congestion problem of slag at the unloading points. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0013] Figure 1 It is the general layout diagram of the embodiment of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the slag separation mechanism of the embodiment of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the mounting frame of the utility model embodiment;

[0016] Figure 4This is a schematic diagram of the structure of the vertical lifting mechanism of the utility model embodiment;

[0017] Figure 5 This is a schematic diagram of the structure of the suspension mechanism of the utility model embodiment;

[0018] Figure 6 It is a cross-sectional schematic diagram of the suspension mechanism of the embodiment of the utility model;

[0019] Figure 7 It is a cross-sectional schematic diagram of the screw conveyor according to an embodiment of the utility model.

[0020] Figure markings: boiler shell 1; slag discharge port 11; slag separation mechanism 2; mounting frame 20; base plate 201; rectangular tube 202; cross plate 203; connecting plate 204; vertical lifting mechanism 30; column 301; first mounting plate 302; first motor 303; first pulley 304; second mounting plate 305; screw rod 306; second pulley 307; guide rail 308; slider 309; limit rod 310; suspension mechanism 40; swing beam 401; base plate 402; second motor 403; third pulley 404; fixed seat 405; rotating shaft 406; protrusion 4061; fourth pulley 407; slewing bearing 408; rotating disk 409; extension plate 410; fixing ring 411; screw conveyor 50; feed port 501; discharge port 502; third motor 503; screw rod 504. DETAILED DESCRIPTION

[0021] See also Figure 1-7 As shown, an embodiment of the present application provides a technical solution: a slag discharge mechanism for a boiler in a thermal power plant, comprising a boiler shell 1, wherein a combustion chamber and a waste slag chamber are respectively arranged inside the boiler shell 1, a slag discharge port 11 is also arranged at the bottom of the boiler shell 1, and a slag separation mechanism 2 is arranged below the slag discharge port 11, the slag separation mechanism 2 comprises a mounting frame 20, a vertical lifting mechanism 30 is arranged in the height direction of the mounting frame 20, and a suspension mechanism 40 is also arranged above the vertical lifting mechanism 30, the suspension mechanism 40 comprises a swinging beam 401, and a screw conveyor 50 is arranged above the swinging beam 401, the screw conveyor 50 has a feed port 501 and a discharge port 502, the feed port 501 is arranged at the rotation center point of the suspension mechanism 40, and is arranged below the slag discharge port 11.

[0022] The vertical lifting mechanism 30 can move up and down, but always keeps the feed port 501 of the screw conveyor 50 below the slag discharge port 11. The vertical lifting mechanism 30 can lower the height of the discharge port 502 of the screw conveyor 50 to the barrel, so as to better load the material into the barrel.

[0023] The height positions of the feed port 501 and the slag discharge port 11 of the screw conveyor 50 may vary, but when the feed port 501 is relatively large, the slag can be ensured to fall into the screw conveyor 50. A telescopic pipe may also be provided between the slag discharge port 11 and the feed port 501 of the screw conveyor 50. The pendulum mechanism 40 may be swung in advance to the barrel position where the material needs to be discharged. When the slag enters the screw conveyor 50 from the slag discharge port 11 and passes through the movement of the screw conveyor 50, the slag can be discharged to the corresponding position. Because multiple barrels can be provided, the pendulum mechanism 40 can be swung to the corresponding position, thereby reducing the problem of slag discharge only at a fixed position.

[0024] In a preferred solution, the mounting frame 20 includes a base plate 201 , on which two parallel rectangular tubes 202 are mounted, a horizontal plate 203 is connected above the rectangular tubes 202 , and a connecting plate 204 is mounted on the horizontal plate 203 .

[0025] In the preferred embodiment, the vertical lifting mechanism 30 includes a column 301, a first mounting plate 302 is provided at the bottom of the column 301, a first motor 303 is provided on the first mounting plate 302, a first pulley 304 is provided on the extending shaft of the first motor 303, two second mounting plates 305 are installed on one side of the column 301, a screw 306 is installed between the two second mounting plates 305, a second pulley 307 is provided at the bottom of the screw 306, a synchronous belt is connected between the first pulley 304 and the second pulley 307, a guide rail 308 is also provided between the two second mounting plates 305, a slider 309 connected to the screw 306 is provided on the guide rail 308, the slider 309 is connected to the connecting plate 204 of the mounting frame 20, and a limiting rod 310 is also provided above the slider 309.

[0026] In this way, through the movement of the first motor 303, the transmission of the first pulley 304 and the second pulley 307, the screw rod 306 is driven to rotate, and finally the slider 309 is driven to move. Because the slider 309 is fixed on the mounting frame 20, the entire vertical lifting mechanism 30 will move up and down.

[0027] In the preferred embodiment, the suspension mechanism 40 includes a base plate 402 installed above the column 301, a second motor 403 is provided vertically upward on the base plate 402, a third pulley 404 is installed on the extended shaft of the second motor 403, a fixed seat 405 is also installed on the base plate 402, a rotating shaft 406 is provided in the fixed seat 405, a fourth pulley 407 is installed on the rotating shaft 406, a synchronous belt is installed between the fourth pulley 407 and the third pulley 404, a slewing bearing 408 is also provided on the fixed seat 405, the outer ring of the slewing bearing 408 is fixed on the fixed seat 405, a rotating disk 409 is provided above the slewing bearing 408, the rotating disk 409 is fixed on the inner ring of the slewing bearing 408, the rotating shaft 406 is fixed on the rotating disk 409, an extended plate 410 is also provided above the rotating disk 409, and the swing beam 401 is arranged on the extended plate 410.

[0028] The position of the bottom plate 402 is fixed, and the rotation movement of the second motor 403 is transmitted through the third pulley 404 and the fourth pulley 407, thereby driving the rotating shaft 406 to move, and the rotating shaft 406 drives the rotating disk 409 to move. The rotating shaft 406 and the rotating disk can be key-connected, and the rotating disk 409 drives the extending plate 410 to rotate, and the extending plate 410 drives the swing beam 401 to move.

[0029] The slewing bearing 408 keeps the outer ring fixed and the inner ring rotates. The slewing bearing can choose the Luoyang Preson's crossed roller slewing bearing XRU series toothless type.

[0030] In a preferred embodiment, a protrusion 4061 is provided on the rotating shaft 406, and the fourth pulley 407 rests on the protrusion 4061. A fixing ring 411 is also provided below the fourth pulley 407, and the fixing ring 411 is threaded. The rotating shaft 406 is also threaded, and the fixing ring 411 is threadedly connected to the rotating shaft 406.

[0031] In a preferred solution, the screw conveyor 50 further includes a third motor 503 , and a screw rod 504 is connected to the extension rod of the third motor 503 .

[0032] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A slag discharge mechanism for a boiler in a thermal power plant, characterized in that: The invention comprises a boiler shell (1), wherein a combustion chamber and a waste slag chamber are respectively arranged inside the boiler shell (1), a slag discharge port (11) is also arranged at the bottom of the boiler shell (1), a slag separation mechanism (2) is arranged below the slag discharge port (11), the slag separation mechanism (2) comprises a mounting frame (20), a vertical lifting mechanism (30) is arranged in the height direction of the mounting frame (20), a suspension mechanism (40) is also arranged above the vertical lifting mechanism (30), the suspension mechanism (40) comprises a swing beam (401), a screw conveyor (50) is arranged above the swing beam (401), the screw conveyor (50) has a feed port (501) and a discharge port (502), the feed port (501) is arranged at the rotation center point of the suspension mechanism (40) and below the slag discharge port (11).

2. A slag discharge mechanism for a thermal power plant boiler according to claim 1, characterized in that: The mounting frame (20) comprises a base plate (201), on which two parallel rectangular tubes (202) are mounted, a horizontal plate (203) is connected above the rectangular tubes (202), and a connecting plate (204) is mounted on the horizontal plate (203).

3. A slag discharge mechanism for a thermal power plant boiler according to claim 1, characterized in that: The vertical lifting mechanism (30) comprises a column (301), a first mounting plate (302) is provided at the bottom of the column (301), a first motor (303) is provided on the first mounting plate (302), a first pulley (304) is provided on the extension shaft of the first motor (303), two second mounting plates (305) are installed on one side of the column (301), a screw rod (306) is installed between the two second mounting plates (305), a second pulley (307) is provided at the bottom of the screw rod (306), a synchronous belt is connected between the first pulley (304) and the second pulley (307), a guide rail (308) is provided between the two second mounting plates (305), a slider (309) connected to the screw rod (306) is provided on the guide rail (308), the slider (309) is connected to the connecting plate (204) of the mounting frame (20), and a limit rod (310) is provided above the slider (309).

4. A slag discharge mechanism for a thermal power plant boiler according to claim 1, characterized in that: The suspension mechanism (40) comprises a base plate (402) mounted above the column (301), a second motor (403) vertically upwardly disposed on the base plate (402), a third pulley (404) mounted on the extended shaft of the second motor (403), a fixed seat (405) further mounted on the base plate (402), a rotating shaft (406) disposed in the fixed seat (405), a fourth pulley (407) mounted on the rotating shaft (406), and the fourth pulley (407) and the third pulley (404) being connected to each other. ), a synchronous belt is installed between the fixed seat (405), a slewing bearing (408) is also provided on the fixed seat (405), the outer ring of the slewing bearing (408) is fixed on the fixed seat (405), a rotating disk (409) is provided above the slewing bearing (408), the rotating disk (409) is fixed to the inner ring of the slewing bearing (408), the rotating shaft (406) is fixed on the rotating disk (409), and a protruding plate (410) is also provided above the rotating disk (409), and the swing beam (401) is arranged on the protruding plate (410).

5. A slag discharge mechanism for a thermal power plant boiler according to claim 1, characterized in that: A protrusion (4061) is provided on the rotating shaft (406), the fourth pulley (407) abuts against the protrusion (4061), a fixing ring (411) is provided below the fourth pulley (407), the fixing ring (411) is threaded, and a thread is also provided on the rotating shaft (406), and the fixing ring (411) is threadedly connected to the rotating shaft (406).

6. A slag discharge mechanism for a thermal power plant boiler according to claim 1, characterized in that: The screw conveyor (50) further comprises a third motor (503), and a screw rod (504) is connected to an extension rod of the third motor (503).

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