Power plant boiler with ash removal mechanism

Abstract

The utility model relates to the technical field of power plant boilers, in particular to a power plant boiler with an ash removal mechanism, which comprises a boiler hearth, and a discharge pipe is arranged at the bottom of the boiler hearth. The ash removal assembly comprises a positioning pipe, the positioning pipe is fixedly connected to the bottom of the discharging pipe, a main shaft is rotatably connected to the interior of the positioning pipe, an auger is fixedly connected to the outer wall of the main shaft, a discharging pipe is connected to one side of the positioning pipe, and a valve rod is rotatably connected to the interior of the discharging pipe; the outer wall of the valve rod is fixedly connected with a valve plate, and the valve plate is located in the discharging pipe. According to the boiler, the ash removal assembly is installed at the discharging port, and the auger penetrates into the discharging pipe, so that when the boiler is used for removing ash, the main shaft and the auger can be driven to rotate through driving of an external motor and transmission of a worm gear and a worm, and ash is conveyed and discharged; and the safety and convenience of boiler ash removal are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power plant boilers, in particular to a power plant boiler with a dust cleaning mechanism. Background Art

[0002] Power plant boilers, in layman's terms, are boilers used to generate electricity in power plants. There are two main types of power plant boilers: pulverized coal boilers and circulating fluidized bed boilers. These two types of boilers are the main types used in power plants. The biggest difference between fluidized bed boilers and pulverized coal boilers is the different states of the fuel, namely liquid and coal powder.

[0003] When the existing pulverized coal furnace is in use, it is necessary to carry out regular ash discharge treatment. However, due to the accumulation of ash inside the discharge pipe, they stick to each other. Therefore, when carrying out ash discharge treatment, it is often necessary to manually hold a metal rod to clear the discharge hole to achieve the falling and discharge of ash. The operation is relatively dangerous, which greatly reduces the convenience and safety of cleaning. Utility Model Content

[0004] The utility model aims to provide a power plant boiler with a ash cleaning mechanism to solve the problem in the above-mentioned background technology that a manual metal rod needs to be held to clear the discharge hole in order to achieve the falling and discharge of ash, which is very dangerous and greatly reduces the convenience and safety of ash cleaning.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a power plant boiler with a ash cleaning mechanism, comprising:

[0006] A boiler furnace, wherein a discharge pipe is provided at the bottom of the boiler furnace;

[0007] A cleaning component includes a positioning tube, the positioning tube is fixedly connected to the bottom of the discharge pipe, the interior of the positioning tube is rotatably connected to a main shaft, the outer wall of the main shaft is fixedly connected to an auger, one side of the positioning tube is connected to a discharge pipe, the interior of the discharge pipe is rotatably connected to a valve stem, the outer wall of the valve stem is fixedly connected to a valve plate, and the valve plate is located inside the discharge pipe.

[0008] Preferably, the bottom of the discharge pipe is fixedly connected to the top of the positioning tube by a flange, the outer wall of the positioning tube is fixedly connected to a motor, the output end of the motor is connected to a worm, and the outside of the worm is meshed with a worm wheel.

[0009] Preferably, both ends of the worm are rotatably connected to the positioning tube via ball bearings, the worm wheel is fixedly connected to the outer wall of the main shaft, and the outer wall of the main shaft is rotatably connected to the positioning tube via ball bearings.

[0010] Preferably, a guide plate is fixedly connected to the inner wall of the positioning tube, and the guide plate is inclined, and the worm gear is located below the guide plate.

[0011] Preferably, a support frame is fixedly connected to the inner wall of the discharge pipe, and a protective cover is fixedly connected to the upper surface of the support frame.

[0012] Preferably, a rotation hole adapted to the main shaft is opened at the center of the support frame, and the top of the main shaft is inserted into the inside of the rotation hole, and the inner diameter of the protective cover is larger than the diameter of the main shaft.

[0013] Preferably, the discharge pipe is inclined, and the bottom of the guide plate is at the highest point of the discharge pipe, and an anti-slip handle is provided at the end of the valve stem.

[0014] Compared with the prior art, the beneficial effect of the utility model is that the utility model installs a cleaning component at the discharge port and passes the auger through the inside of the discharge pipe, so that when the boiler is cleaning, the main shaft and the auger can be driven by an external motor and then by the transmission of the worm gear to drive the main shaft and the auger to rotate, thereby realizing the transportation and discharge of ash, which greatly improves the safety and convenience of boiler cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a partial cross-sectional structural schematic diagram of the utility model;

[0017] Figure 3 For the utility model Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0018] Figure 4 For the utility model Figure 2 Schematic diagram of the enlarged structure of B;

[0019] Figure 5 It is a schematic diagram of the partial explosion structure of the dust cleaning component of the utility model.

[0020] In the figure: 1. boiler furnace; 2. discharge pipe; 3. cleaning assembly; 31. positioning pipe; 32. motor; 33. worm; 34. worm wheel; 35. main shaft; 36. auger; 37. discharge pipe; 38. valve stem; 39. valve plate; 40. guide plate; 4. support frame; 41. protective cover. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5 The utility model provides an embodiment: a power plant boiler with a ash cleaning mechanism, comprising:

[0023] A boiler furnace 1, a discharge pipe 2 is provided at the bottom of the boiler furnace 1;

[0024] The cleaning component 3 includes a positioning tube 31, which is fixedly connected to the bottom of the discharge pipe 2. The internal rotation of the positioning tube 31 is connected to the main shaft 35, and the outer wall of the main shaft 35 is fixedly connected to the auger 36. One side of the positioning tube 31 is connected to a discharge pipe 37, and the internal rotation of the discharge pipe 37 is connected to the valve stem 38, and the outer wall of the valve stem 38 is fixedly connected to the valve plate 39, and the valve plate 39 is located inside the discharge pipe 37. Through the setting of this structure, the worm 33 can be driven to rotate when the motor 32 is started, and the worm wheel 34 can be further driven to rotate, so that the auger 36 can be driven to rotate through the rotation of the main shaft 35. The rotation of the auger 36 can drive the ash to be discharged downward, and no external force is required to clear the ash, thereby improving the safety of cleaning. The setting of the detachable structure is convenient for the subsequent inspection and maintenance of parts.

[0025] Furthermore, the bottom of the discharge pipe 2 is fixedly connected to the top of the positioning tube 31 by a flange, the outer wall of the positioning tube 31 is fixedly connected to a motor 32, the output end of the motor 32 is connected to a worm 33, the outside of the worm 33 is meshed with a worm wheel 34, both ends of the worm 33 are rotationally connected to the positioning tube 31 through ball bearings, the worm wheel 34 is fixedly connected to the outer wall of the main shaft 35, and the outer wall of the main shaft 35 is rotationally connected to the positioning tube 31 through a ball bearing.

[0026] Furthermore, the inner wall of the positioning tube 31 is fixedly connected with a guide plate 40, and the guide plate 40 is inclined, and the worm gear 34 is located below the guide plate 40. The setting of the guide plate 40 plays a good guiding role, which can ensure that the ash is discharged through the discharge pipe 37. The inner wall of the discharge pipe 2 is fixedly connected with a support frame 4, and the upper surface of the support frame 4 is fixedly connected with a protective cover 41. The center of the support frame 4 is provided with a rotating hole adapted to the main shaft 35, and the top of the main shaft 35 is inserted into the inside of the rotating hole. The inner diameter of the protective cover 41 is larger than the diameter of the main shaft 35. Through the setting of the support frame 4 and the protective cover 41, auxiliary support and limitation of the main shaft 35 are played to ensure the stability of the rotation of the main shaft 35.

[0027] Furthermore, the discharge pipe 37 is inclined, and the bottom of the guide plate 40 is at the highest point of the discharge pipe 37. An anti-slip handle is provided at the end of the valve stem 38. The rotation of the valve stem 38 can drive the valve plate 39 to rotate, thereby realizing the opening and closing control of the discharge pipe 37, and then realizing the discharge of ash. At the same time, through the setting of the valve plate 39, the discharge pipe 37 can be closed, thereby preventing ash from falling during non-cleaning operations.

[0028] Working principle: The boiler furnace 1 and the motor 32 used in this application are products that can be directly purchased on the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be repeated here. When the utility model is in use, the cleaning component 3 is first installed and positioned, the main shaft 35 and the auger 36 are inserted into the interior of the discharge pipe 2, and the main shaft 35 is inserted between the support frames 4, and further through the flange connection of the positioning tube 31 and the discharge pipe 2, its positioning processing is realized. Further, when cleaning, by starting the motor 32, the worm 33 is driven to rotate, and the main shaft 35 is further driven to rotate by the worm gear 34, so that the ash is discharged downward by the rotation of the auger 36. The discharge of ash can be achieved without applying additional external force, and the operation is safer and more convenient.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A power plant boiler with a ash cleaning mechanism, characterized in that: include: A boiler furnace (1), wherein a discharge pipe (2) is provided at the bottom of the boiler furnace (1); A cleaning component (3), the cleaning component (3) comprising a positioning tube (31), the positioning tube (31) being fixedly connected to the bottom of a discharge tube (2), the interior of the positioning tube (31) being rotatably connected to a main shaft (35), the outer wall of the main shaft (35) being fixedly connected to an auger (36), one side of the positioning tube (31) being connected to a discharge tube (37), the interior of the discharge tube (37) being rotatably connected to a valve stem (38), the outer wall of the valve stem (38) being fixedly connected to a valve plate (39), and the valve plate (39) being located inside the discharge tube (37).

2. A power plant boiler with a ash cleaning mechanism according to claim 1, characterized in that: The bottom of the discharge pipe (2) is fixedly connected to the top of the positioning tube (31) in the form of a flange, the outer wall of the positioning tube (31) is fixedly connected to a motor (32), the output end of the motor (32) is connected to a worm (33), and the outside of the worm (33) is meshed with a worm wheel (34).

3. A power plant boiler with a ash cleaning mechanism according to claim 2, characterized in that: Both ends of the worm (33) are rotatably connected to the positioning tube (31) via ball bearings, the worm wheel (34) is fixedly connected to the outer wall of the main shaft (35), and the outer wall of the main shaft (35) is rotatably connected to the positioning tube (31) via ball bearings.

4. A power plant boiler with a ash cleaning mechanism according to claim 2, characterized in that: A guide plate (40) is fixedly connected to the inner wall of the positioning tube (31), and the guide plate (40) is inclined, and the worm gear (34) is located below the guide plate (40).

5. The power plant boiler with a ash cleaning mechanism according to claim 1, characterized in that: The inner wall of the discharge pipe (2) is fixedly connected to a support frame (4), and the upper surface of the support frame (4) is fixedly connected to a protective cover (41).

6. A power plant boiler with a ash cleaning mechanism according to claim 5, characterized in that: The center of the support frame (4) is provided with a rotation hole adapted to the main shaft (35), and the top of the main shaft (35) is inserted into the inside of the rotation hole. The inner diameter of the protective cover (41) is larger than the diameter of the main shaft (35).

7. A power plant boiler with a ash cleaning mechanism according to claim 5, characterized in that: The discharge pipe (37) is inclined, and the bottom of the guide plate (40) is located at the highest point of the discharge pipe (37). The end of the valve stem (38) is provided with an anti-slip handle.

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