Ash discharging anti-blocking device for ash hopper of economizer

Abstract

Provided is an ash discharging anti-blocking device of a coal economizer ash hopper. An ash discharging pipe of an ash hopper of a coal economizer is easy to block during operation, ash is scattered seriously during dredging, the workload is large, the field environment of equipment is severe, and meanwhile the labor intensity of workers is greatly increased. The anti-blocking device comprises an ash discharging pipe (1) and a coal economizer (5), an anti-blocking device (3) is connected between the ash discharging pipe and the coal economizer, the anti-blocking device comprises a slag rolling box (33), the upper portion of the slag rolling box is welded to a slag falling cylinder (32), the lower portion of the slag rolling box is welded to a slag discharging cylinder (39), and an obliquely-arranged slag rolling filter screen (34) is fixed in the slag rolling box; a slag collecting pipe (35) is arranged at the falling root part of the slag rolling filter screen of the slag rolling box; and the bottom of the slag collecting pipe is fixed with a slag collecting cover plate (36) through a bolt. The anti-blocking device is used for ash discharging and anti-blocking of the economizer ash hopper.

Description

Technical Field

[0001] The utility model relates to an anti-blocking device for ash under an economizer ash hopper. Background Art

[0002] At present, the ash pipe under the economizer ash hopper is prone to blockage during operation. When unblocking, ash is seriously spilled and the workload is large, resulting in a poor equipment site environment and greatly increased labor intensity. Utility Model Content

[0003] The utility model aims to solve the above-mentioned problems and provide an anti-blocking device for ash under the ash hopper of an economizer.

[0004] The above purpose is achieved through the following technical solutions:

[0005] An anti-blocking device for ash under an economizer ash hopper, comprising an ash underflow pipe and an economizer, wherein an anti-blocking device is connected between the ash underflow pipe and the economizer, wherein the anti-blocking device comprises a slag rolling box, wherein the upper portion of the slag rolling box is welded to a slag falling tube, and the lower portion is welded to a slag discharge tube, and an inclined slag rolling filter is fixed inside the slag rolling box;

[0006] The root of the slag rolling filter of the slag rolling box where the slag rolling filter falls is provided with a slag collecting pipe, and the bottom of the slag collecting pipe is fixed to the slag collecting cover plate by bolts.

[0007] The economizer ash hopper ash blocking prevention device, the slag rolling box is located at the bottom of the slag rolling filter and has an inclined bottom surface.

[0008] The economizer ash hopper lower ash blocking prevention device, one end of the slag rolling box is fixed to the slag cleaning cover plate by bolts. Beneficial Effects

[0009] 1. When large ash blocks fall from the lower ash pipe, the utility model directly falls into the anti-blocking device, and the large ash blocks are isolated by the rolling slag filter in the anti-blocking device. The isolated large ash blocks will roll along the inclination direction of the filter and then fall into the slag collecting pipe, which can effectively avoid blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 This is the front view of the anti-blocking device;

[0012] Figure 3 is a top view of the anti-blocking device;

[0013] Figure 4 A bottom view of the anti-blocking device;

[0014] Figure 5 for Figure 2 AA section view;

[0015] Figure 6 It is a schematic diagram of the internal structure of the anti-blocking device;

[0016] In the figure: 1. ash lower pipe; 2. ash lower pipe flange; 3. anti-blocking device; 4. economizer flange; 5. economizer; 6. inclined bottom surface; 31. upper flange; 32. slag dropping barrel; 33. slag rolling box; 34. slag rolling filter; 35. slag collecting pipe; 36. slag collecting cover plate; 37. lower flange; 38. slag cleaning cover plate; 39. slag discharge barrel. DETAILED DESCRIPTION

[0017] Reference Figure 1 , an anti-blocking device for ash under an economizer ash hopper, comprising an ash underflow pipe 1 and an economizer 5, wherein an anti-blocking device 3 is connected between the ash underflow pipe and the economizer, wherein the anti-blocking device comprises a slag rolling box 33, wherein the upper part of the slag rolling box is welded to a slag dropping tube 32, wherein the top of the slag dropping tube has an upper flange 31, and the lower part is welded to a slag discharge tube 39, wherein the bottom of the slag discharge tube has a lower flange 37, wherein an inclined slag rolling filter screen 34 is fixed inside the slag rolling box, wherein the slag rolling filter screen is formed by a plurality of quickly cross-welded wires;

[0018] The root of the slag rolling filter of the slag rolling box is provided with a slag collecting pipe 35, and the bottom of the slag collecting pipe is fixed to the slag collecting cover plate 36 by bolts.

[0019] The economizer ash hopper ash blocking prevention device, the slag rolling box is located at the bottom of the slag rolling filter and has an inclined bottom surface 6.

[0020] The economizer ash hopper lower ash blocking prevention device, one end of the slag rolling box is fixed to the slag cleaning cover plate 38 by bolts.

[0021] The lower ash pipe is provided with a lower ash pipe flange 2, the upper part of the economizer is provided with an economizer flange 4, the anti-blocking device is connected between the lower ash pipe and the economizer by bolts, the top of the slag dropping tube is provided with an upper flange 31, the upper flange is butted with the lower ash pipe flange and fixed by bolts, the bottom of the slag discharge tube is provided with a lower flange, the lower flange is butted with the economizer flange and fixed by bolts, thus completing the fixing of the anti-blocking device;

[0022] The slag rolling filter adopts a grid structure, which is made of multiple quickly cross-welded wires, and the filter is fixed on the inner wall of the slag rolling box by welding.

[0023] Working principle: When in use, after the anti-blocking device is fixed, when large pieces of ash fall from the lower ash pipe, they directly fall into the anti-blocking device, and are isolated by the rolling slag filter in the anti-blocking device. The isolated large pieces of ash will roll along the inclination direction of the filter and then fall into the slag collecting pipe, which can effectively avoid blockage. Then, by removing the slag collecting cover, the large pieces of ash in the slag collecting pipe will flow out directly. After long-term use, the slag cleaning cover can be opened to see the condition of the internal rolling slag filter, and the rolling slag filter can be cleaned if there is blockage.

Claims

1. An anti-blocking device for ash hopper of economizer, which comprises an ash lowering pipe and an economizer, and is characterized by: An anti-blocking device is connected between the ash lowering pipe and the economizer, and the anti-blocking device comprises a slag rolling box, the upper part of the slag rolling box is welded to the slag falling tube, and the lower part is welded to the slag discharge tube, and an inclined slag rolling filter is fixed inside the slag rolling box; The root of the slag rolling filter of the slag rolling box is provided with a slag collecting pipe, and the bottom of the slag collecting pipe is fixed to the slag collecting cover plate by bolts.

2. The device for preventing ash from blocking the economizer ash hopper according to claim 1 is characterized in that: The slag rolling box is located at the bottom of the slag rolling filter and has an inclined bottom surface.

3. The device for preventing ash from blocking the economizer ash hopper according to claim 2 is characterized in that: One end of the slag rolling box is fixed to the slag cleaning cover plate by bolts.

Images