Thermal power plant boiler slag discharging structure

Abstract

The utility model belongs to the field of thermoelectricity, and particularly relates to a thermal power plant boiler slag discharging structure which comprises a crusher, a feeding end seat is arranged at the top of the crusher, and a discharging end seat is arranged at the bottom of the crusher. The crushing mechanism comprises a driving device arranged on the crusher, the output end of the driving device is connected to a transmission device, the output end of the transmission device is connected with a crushing shaft penetrating into an inner cavity of the crusher, and a protruding crushing part is arranged on the outer wall of the crushing shaft. After the slag is discharged out of the boiler, due to the fact that heat of the slag is not fully utilized, the blocky slag is crushed and treated into a granular structure facilitating heat release through the crushing mechanism, on one hand, the blocky slag can be prevented from blocking a discharging channel, and on the other hand, residual heat can be conveniently collected; and the distribution mechanism can assist in spreading the granular slag on the slope bench, and can quickly collect residual heat in cooperation with a subsequent air inducing device, so that heat waste is prevented.

Description

Technical Field

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

[0002] Boiler deslagging refers to the process of discharging the ash produced during the boiler combustion process from the boiler system. These ash are mainly formed by the minerals in the fuel undergoing a series of physical and chemical changes at high temperatures. The method and effect of boiler deslagging directly affect the operating efficiency and environmental performance of the boiler.

[0003] The prior art has the following problems:

[0004] 1. The slag discharged from the boiler is sintered together in a block structure. Direct discharge can easily cause slag discharge channel blockage, which is insufficient;

[0005] 2. The slag discharged from the boiler contains a lot of residual heat, and direct discharge wastes a lot of energy. There is a lack of equipment to quickly collect the residual heat in the slag, which is a deficiency. Utility Model Content

[0006] (I) Purpose of the utility model

[0007] In order to solve the technical problems existing in the background technology, the utility model proposes a slag discharge structure for a thermal power plant boiler, which has the characteristics of fully recovering the residual heat of the slag.

[0008] (II) Technical solution

[0009] In order to solve the above technical problems, the utility model provides a thermal power plant boiler slag discharge structure, comprising a crusher, wherein the top of the crusher is provided with a feed end seat, and the bottom is provided with a discharge end seat;

[0010] The crushing mechanism comprises a driving device arranged on the crusher, the output end of the driving device is connected to a transmission device, the output end of the transmission device is connected to a crushing shaft penetrating into the inner cavity of the crusher, and the outer wall of the crushing shaft is provided with a protruding crushing piece;

[0011] The diversion mechanism includes a ramp connected to the discharge end seat, the ramp is an inclined structure that is narrow at the top and wide at the bottom, a plurality of diversion plates are installed at the top, and a raised buffer column is installed at the bottom, and a vibration motor is installed at the bottom of the ramp;

[0012] The transmission mechanism comprises a transmission platform arranged behind the ramp platform, the transmission platform is equipped with a transmission belt controlled by a motor, and a cover plate is installed on the top, and air induction devices are installed on the cover plate at intervals.

[0013] Preferably, two sets of the crushing shafts are provided, and a crushing gap is left between the two sets of the crushing shafts, and the transmission direction is from the feeding end seat to the discharging end seat.

[0014] Preferably, guardrails are symmetrically installed at both ends of the slope platform, and the height of the guardrails gradually decreases from top to bottom.

[0015] Preferably, at least three shunt plates are arranged on the slope platform, and the gaps between two adjacent shunt plates are the same.

[0016] Preferably, two rows of buffer columns are provided, and the gaps between adjacent buffer columns are the same.

[0017] Preferably, the air inlet of the air guiding device faces the upper part of the conveyor belt, and the air exhaust end of the air guiding device is connected to the boiler.

[0018] The above technical solution of the present utility model has the following beneficial technical effects:

[0019] 1. After the slag is discharged from the boiler, since the heat of the slag is not fully utilized, the crushing mechanism is used to crush the massive slag into a granular structure convenient for releasing heat. On the one hand, it can prevent the massive slag from blocking the discharge channel, and on the other hand, it is convenient to collect the residual heat.

[0020] 2. The setting of the shunt mechanism can assist the granular slag to spread out on the slope platform, and cooperate with the subsequent air guiding device to quickly collect the residual heat and prevent heat waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the present utility model;

[0022] Figure 2 is a schematic structural diagram of the crushing mechanism of the present utility model;

[0023] Figure 3 is a schematic structural diagram of the cooperation between the shunt mechanism and the transmission mechanism of the present utility model;

[0024] Figure 4 is a three-dimensional structural diagram of the shunt mechanism of the present utility model.

[0025] Reference Signs:

[0026] 1. Crusher; 21. Driving device; 22. Transmission device; 23. Crushing shaft; 24. Crushing part; 3. Feeding end seat; 4. Discharging end seat; 51. Slope platform; 52. Guardrail; 53. Shunt plate; 54. Buffer column; 55. Vibration motor; 61. Transmission platform; 62. Motor; 63. Conveyor belt; 64. Cover plate; 65. Air guiding device. DETAILED DESCRIPTION OF THE INVENTION

[0027] To make the objectives, technical solutions, and advantages of the present utility model clearer and more explicit, the present utility model will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present utility model. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.

[0028] As Figures 1-4 shown, a slag discharge structure of a thermal power plant boiler proposed by the present utility model includes a crusher 1. A feed end seat 3 is provided at the top of the crusher 1, and a discharge end seat 4 is provided at the bottom.

[0029] The crushing mechanism includes a driving device 21 provided on the crusher 1. The output end of the driving device 21 is connected to a transmission device 22, and the output end of the transmission device 22 is connected to a crushing shaft 23 that penetrates into the inner cavity of the crusher 1. A protruding crushing member 24 is provided on the outer wall of the crushing shaft 23.

[0030] The diversion mechanism includes a slope platform 51 connected to the discharge end seat 4. The slope platform 51 is an inclined structure with a narrower upper part and a wider lower part. A plurality of diversion plates 53 are installed on its upper part, and protruding buffer columns 54 are installed on its lower part. A vibration motor 55 is installed at the bottom of the slope platform 51.

[0031] The transmission mechanism includes a transmission platform 61 provided behind the slope platform 51. A transmission belt 63 controlled by a motor 62 is provided inside the transmission platform 61, and a cover plate 64 is installed on the top. Air guiding devices 65 are installed at intervals on the cover plate 64.

[0032] It should be noted that: Two groups of crushing shafts 23 are provided. A crushing gap is left between the two groups of crushing shafts 23. The driving device 21 drives the transmission device 22 to work, driving the two groups of crushing shafts 23 to rotate in the same direction. The slag is broken from a block shape into a granular shape by the collision of the crushing member 24 with the slag, preventing the block-shaped slag from blocking the discharge channel. Since the transmission direction of the crusher is from the feed end seat 3 to the discharge end seat 4, the slag can be pushed to the discharge end seat 4 during the rotation of the crushing shaft 23.

[0033] In this embodiment, after the slag is discharged from the boiler, the heat of the slag is not fully utilized, so the block slag is broken up by a crushing mechanism and processed into a granular structure that is convenient for releasing heat. Three diverter plates 53 are arranged on the ramp 51, and the gaps between two adjacent diverter plates 53 are the same. In conjunction with the operation of the vibration motor 55, the accumulated granular slag is spread out on the ramp 51. At the same time, before entering the transmission platform 61, the sliding speed is reduced by the buffer column 54 so that the granular slag can smoothly enter the transmission platform 61. During the process of conveying the granular slag by the conveyor belt 63, the air inlet of the induced draft device 65 faces the upper part of the conveyor belt 63, and the exhaust end of the induced draft device 65 is connected to the boiler. The released heat is collected and transmitted to the boiler through the induced draft device 65 to ensure full utilization of the heat.

[0034] It can be understood that the buffer columns 54 are arranged in two rows, and the gaps between adjacent buffer columns 54 are the same, and the granular slag is passively decelerated when colliding with the buffer columns 54, so that the granular slag smoothly enters the conveyor belt 63 for further transportation.

[0035] In order to prevent the slag particles from escaping from the ramp 51, guardrails 52 are further symmetrically installed at both ends of the ramp 51. The height of the guardrails 52 gradually decreases from top to bottom, and the width of the slag transmission channel increases, thereby reducing the height of the guardrails 52.

[0036] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. A slag discharge structure for a thermal power plant boiler, characterized in that: It comprises a crusher (1), wherein the top of the crusher (1) is provided with a feed end seat (3), and the bottom of the crusher (1) is provided with a discharge end seat (4); The crushing mechanism comprises a driving device (21) arranged on the crusher (1), the output end of the driving device (21) is connected to a transmission device (22), the output end of the transmission device (22) is connected to a crushing shaft (23) penetrating into the inner cavity of the crusher (1), and the outer wall of the crushing shaft (23) is provided with a protruding crushing piece (24); The flow diversion mechanism comprises a ramp (51) connected to the discharge end seat (4), the ramp (51) is an inclined structure narrow at the top and wide at the bottom, a plurality of flow diversion plates (53) are installed at the top, and a raised buffer column (54) is installed at the bottom, and a vibration motor (55) is installed at the bottom of the ramp (51); The transmission mechanism comprises a transmission platform (61) arranged behind the ramp platform (51), the transmission platform (61) having a built-in transmission belt (63) controlled by a motor (62), and a cover plate (64) installed on the top, and an air induction device (65) installed on the cover plate (64) at intervals.

2. A thermal power plant boiler slag discharge structure according to claim 1, characterized in that: Two groups of crushing shafts (23) are provided in total, a crushing gap is left between the two groups of crushing shafts (23), and the transmission direction is from the feed end seat (3) to the discharge end seat (4).

3. A thermal power plant boiler slag discharge structure according to claim 1, characterized in that: Guardrails (52) are symmetrically installed at both ends of the ramp (51), and the height of the guardrails (52) gradually decreases from top to bottom.

4. A thermal power plant boiler slag discharge structure according to claim 1, characterized in that: At least three diverter plates (53) are arranged on the ramp (51), and the gaps between two adjacent diverter plates (53) are the same.

5. The slag discharge structure of a thermal power plant boiler according to claim 1, characterized in that: The buffer columns (54) are arranged in two rows, and the gaps between adjacent buffer columns (54) are the same.

6. A thermal power plant boiler slag discharge structure according to claim 1, characterized in that: The air inlet of the air induction device (65) faces the upper part of the conveyor belt (63), and the air exhaust end of the air induction device (65) is connected to the boiler.

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