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Building blasting integrated dust-removing method

A technology for buildings and dust suppressants, which is applied in cleaning methods and utensils, chemical instruments and methods, and smoke and dust removal, etc., can solve the problems of insufficient research depth of treatment measures and single treatment measures, so as to reduce blasting dust pollution and noise reduction. , The effect of reducing dust pollution

Inactive Publication Date: 2008-02-20
郑炳旭 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (2) The depth of research on existing governance measures is not enough
Take the widely used dust suppression method of sprinkling water as an example: everyone knows that sprinkling water can suppress dust, but they don’t know anything about the mechanism of dust suppression by sprinkling water, the water absorption characteristics of the object to be exploded, and the relationship between the water content of the object to be exploded and the amount of dust produced.
[0006] (3) Single governance measures

Method used

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Examples

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Effect test

Embodiment 1

[0038] Guangdong Hongda Blasting Engineering Co., Ltd. made a bold attempt to suppress dust when demolishing Building No. 3 of an institution in Guangzhou. The building is 49m long from east to west, 13m wide from north to south, and 5 stories high. It has a reinforced concrete frame structure and a construction area of ​​about 3200m2. 2 . The main dust reduction measures adopted during demolition by blasting are: fully sprinkle and soak all parts of the building before blasting, so as to give full play to the role of physical cohesion. On the basis of using physical methods to reduce dust, chemical methods are also used to enhance the effect of dust reduction. The main chemical dust suppression methods used are:

[0039] 1. Sprinkle hygroscopic dust suppressant on the wall, ground and top surface of the building to be demolished with general spraying device or sprinkler device, so as to increase the water content of the building as much as possible, reduce the evaporation o...

Embodiment 2

[0051] On January 3, 2007, Guangdong Hongda Blasting Engineering Co., Ltd. blasted and demolished the west tower of Guangzhou Tianhe City. The building has 4 floors on the ground (18m high) and two floors underground (12m high). It is a frame-shear wall structure. The entire building is in the shape of a triangular prism, and the two straight sides of the prism are both 48m long. The Teemall West Tower is about 4.5m directly above the construction section of Metro Line 3, and the horizontal distance from Line 1 is only about 20m, and the distance from the main building of Teemall is only 1.5cm. Complex, in order to minimize dust pollution, we have adopted the following dust reduction methods:

[0052] 1. Sprinkle hygroscopic dust suppressant on the wall, ground and top surface of the building to be demolished with general spraying device or sprinkler device, so as to increase the water content of the building as much as possible, reduce the evaporation of water, and save water...

Embodiment 3

[0067] On February 21, 2007, Guangdong Hongda Blasting Engineering Co., Ltd. blasted and demolished Qingdao Ocean Hotel. Qingdao Ocean Hotel is located at No. 61, Hong Kong Middle Road, Qingdao. The main building is 61.2m long from east to west, 21.1m wide from north to south, 45.7m high (13 floors) for the main body, and 54.4m (15 floors) for some parts. The total area of ​​the main building is 14,000m2 2 . The surrounding environment of Ocean Hotel is complicated. 6m to the east of the main building is the ocean building under construction; 35m to the west of the main building is Qingdao International Financial Center, which is a pedestrian passage between the Entertainment City and Qingdao International Financial Center; the south of the main building is the building podium (lobby ), 30m away are Hong Kong Middle Road underground pipeline area, green belt, non-motorized lanes and motorized lanes, and across the road is the "JUSCO" shopping mall; 5m to the north of the east ...

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Abstract

The present invention provides an integrated dust laying method of building blasting, which comprises: before blasting, the building to be demolished is processed by hydroscopic dust depressor solution; then foam is manufactured as much as possible in the blasting scale, which enables the building to be demolished to be surrounded by the foam; at the same time of blasting, active water spray is manufactured in the blasting space so as to further catch the dust. The integrated dust laying method of building blasting of the present invention uses an integrated method that combines the chemical method and the traditional physical method(watering) so as to reduce the dust in the blasting demolition, which reduces greatly dust pollution during the building blasting demolition, and also reduces noise pollution during blasting.

Description

technical field [0001] The invention relates to dust suppression applicable to blasting demolition in different occasions, especially city controlled blasting. Background technique [0002] With the progress of society and the development of urban construction, the amount of demolition of old urban buildings in our country is increasing year by year, and the use of blasting demolition in urban development is increasing. However, the five major public hazards caused by blasting demolition, namely flying stones, vibration, noise, blast wind and dust, have made many people talk about "explosion". The dust generated during blasting demolition is intuitive and visible. Among the five major public hazards, people hate the dust generated by blasting demolition. In order to reduce the dust during blasting demolition, people have thought of many ways in recent years, and some results have been received. However, due to the lack of systematic research on dust control, the dust contr...

Claims

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Application Information

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IPC IPC(8): B08B15/00
Inventor 郑炳旭潘德顺李战军马天元
Owner 郑炳旭
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