一种磨煤机刮板装置

By incorporating an adjustment mechanism and elastic components into the scraper assembly of the coal mill, the lifespan issues caused by foreign object jamming and wear of the scraper assembly were resolved. This enabled the height adjustment and reset functions of the scraper assembly, thereby improving the lifespan and operational stability of the device.

CN224507790UActive Publication Date: 2026-07-17华润电力(锡林郭勒)有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
华润电力(锡林郭勒)有限公司
Filing Date
2025-08-05
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The existing scraper device of the coal mill is prone to jamming when encountering foreign objects, resulting in severe wear, which affects its service life and the output of the coal mill, leading to a decrease in the economic benefits of power generation enterprises.

Method used

A scraper device for a coal mill is designed. By setting an adjustment mechanism on the mounting frame, the height of the scraper assembly can be adjusted. An elastic element is used to lift and reset the scraper assembly when it encounters foreign objects. After wear, the installation position can be adjusted to maintain close contact with the pulverized coal conveying line.

Benefits of technology

It improves the adaptability and reliability of the coal mill scraper device, reduces equipment failures, extends service life, and ensures the continuous and stable operation of the coal mill.

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Abstract

本实用新型涉及磨煤设备技术领域，更具体地，涉及一种磨煤机刮板装置，包括安装架、刮板组件和弹性件，所述刮板组件与所述安装架转动连接，所述弹性件的一端与所述安装架连接，所述弹性件的另一端与所述刮板组件连接，所述弹性件用于推动所述刮板组件偏转后复位，所述安装架连接有用于调节所述刮板组件安装高度的调节机构。本方案通过调节机构能够调节刮板组件的安装高度，一方面，在装配时能够使刮板组件处于合适的高度位置，便于磨煤机刮板装置进行安装；另一方面，当磨煤机刮板装置长时间使用后，刮板组件可能受到磨损而无法与煤粉有效接触，此时可以向下调整刮板安装位置，使装置能够继续工作，提高磨煤机刮板装置的使用寿命。
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Claims

1. A scraper device for a coal mill, characterized in that: The device includes a mounting bracket (1), a scraper assembly (2), and an elastic element (3). The scraper assembly (2) is rotatably connected to the mounting bracket (1). One end of the elastic element (3) is connected to the mounting bracket (1), and the other end of the elastic element (3) is connected to the scraper assembly (2). The elastic element (3) is used to push the scraper assembly (2) to deflect and then reset. The mounting bracket (1) is connected to an adjustment mechanism (4) for adjusting the installation height of the scraper assembly (2).

2. The coal mill scraper arrangement of claim 1, wherein: The mounting bracket (1) includes a mounting plate (11) and a first support member (12). The first support member (12) is connected to the mounting plate (11) through the adjustment mechanism (4). The scraper assembly (2) is rotatably connected to the first support member (12).

3. A coal mill scraper arrangement according to claim 2, characterised in that: The adjustment mechanism (4) includes a pad (41) and a first fixing member (42). The first support member (12) passes through the pad (41) and is connected. The first fixing member (42) is detachably connected to the first support member (12) and presses the pad (41) onto the mounting bracket (1).

4. A coal mill scraper arrangement according to claim 3, characterised in that: The adjustment mechanism (4) further includes a second fixing member (43). There is a pair of pads (41). The pair of pads (41) are respectively clamped at both ends of the side wall of the mounting frame (1). The second fixing member (43) is detachably connected to the pair of pads (41).

5. The coal mill scraper apparatus of claim 1, wherein: The mounting bracket (1) has a waist-shaped hole (111), and the adjustment mechanism (4) is adjustablely connected to the waist-shaped hole (111) in the height direction.

6. The coal mill scraper apparatus of claim 2, wherein: The scraper assembly (2) includes a scraper contact part (21), a scraper middle part (22), and a scraper rotating part (23). One end of the scraper rotating part (23) is rotatably connected to the mounting frame (1), and the other end of the scraper rotating part (23) is connected to the scraper middle part (22). The scraper middle part (22) is connected to the scraper contact part (21). The scraper contact part (21) is used to contact coal powder. The elastic member (3) is connected to the scraper rotating part (23).

7. A coal mill scraper arrangement according to claim 6, characterised in that: The mounting bracket (1) further includes a second support member (13), which is fixedly connected to the mounting plate (11). The scraper rotating part (23) has a third support member (231). One end of the elastic member (3) is connected to the second support member (13), and the other end of the elastic member (3) is connected to the third support member (231).

8. A coal mill scraper arrangement according to claim 7, characterised in that: The elastic member (3) has a fixing collar (31) at each end. The fixing collar (31) at one end of the elastic member (3) is sleeved on the second support member (13), and the fixing collar (31) at the other end of the elastic member (3) is sleeved on the third support member (231).

9. The coal mill scraper arrangement of claim 6, wherein: The scraper contact portion (21) is detachably connected to the scraper middle portion (22).

10. The coal mill scraper apparatus of claim 1, wherein: The elastic element (3) is a compression spring.