Waste chimney dismantling method

Abstract

The invention discloses a method for dismantling a waste chimney, which is characterized in that a built-in lifting platform capable of extending and retracting in parallel is arranged inside the inner side of the chimney, and a worker stands on the platform inside the inner side to dismantle the chimney.

Description

TECHNICAL FIELD

[0001] The present application relates to a method for dismantling a waste chimney, belonging to the technical field of safety operation machinery for high-altitude operation. BACKGROUND

[0002] At present, with the strengthening of national environmental protection consciousness, the emphasis on energy saving and emission reduction, and the improvement of heating measures, in this environment, the dismantling of the remaining large chimney has become a problem that cannot be ignored for some industrial and mining enterprises and small heating units. Because of the influence of surrounding buildings and facilities, directional blasting and large machinery cannot be used, and only manual dismantling can be used.

[0003] To solve the above problems, the inventor has provided a utility model patent for a chimney dismantling elevator with application number [ZL2015203685388] and name "Chimney Dismantling Elevator" on June 2, 2015, and a utility model patent for an abandoned chimney automatic cutting and dismantling device with application number [ZL2019215011007] and name "Abandoned Chimney Automatic Cutting and Dismantling Device" on September 10, 2019.

[0004] The dismantling method of the present application provides a more convenient working platform for workers and safe protective measures, greatly improving work efficiency. SUMMARY

[0005] The present application installs a working platform inside the chimney. The working platform is composed of two groups of lifting devices, which are cross-connected and installed on the peripheral wall inside the chimney. The working platform is composed of multiple groups of fan-shaped blades, which can complete the parallel expansion and contraction process through mechanical rotation according to the change of the inner diameter of the chimney. The safety beam is connected to the working platform through a lifting chain and is horizontally placed on the chimney to further enhance the safety of the working platform. BRIEF DESCRIPTION OF DRAWINGS

[0006] The present application will be further described below in conjunction with the drawings and examples

[0007] Figure 1 , the working platform installed on the chimney

[0008] Figure 2 , the working platform installation structure schematic diagram

[0009] Figure 3 , the safety beam installation structure schematic diagram

[0010] In Figure 1 (1) chimney (2) working platform

[0011] In Figure 2 (2) working platform (3) working platform lifting chain (4) hook (5) safety beam (6) safety beam lifting chain

[0012] exist Figure 3 (1) Chimney (2) Working platform (3) Safety beam Detailed Implementation

[0013] exist Figure 2 In the middle, the work platform (2) is hoisted on the chimney (1) by the chain (3) and the hook (4), and the safety beam (5) is connected to the work platform (2) by the safety chain (6) and is placed horizontally on the chimney (1).

Claims

1. A method for dismantling an abandoned chimney includes: It has a work platform installed inside the chimney, a lifting assembly, and a safety beam.

2. As described in claim 1, the working platform is composed of multiple sets of fan-shaped blades, and the parallel extension and retraction of the working platform is accomplished by mechanical transmission. Two sets of lifting devices are cross-shaped and hoisted on the outer wall of the chimney.

3. As described in claim 1, the safety beam is horizontally mounted on the chimney and connected to the work platform via a suspension chain.

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