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 mecha

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0037] Example 1.

[0038] Guangdong Hongda Blasting Engineering Co., Ltd. made a bold attempt to reduce dust when blasting and demolishing the No. 3 building of an agency in Guangzhou. The building is 49m long from east to west, 13m wide from north to south, 5 stories high, reinforced concrete frame structure, with a construction area of ​​about 3200m 2 . The main dust suppression measures adopted in blasting and demolition are as follows: before blasting, all parts of the building should be fully sprinkled and flooded 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 reduction methods used are:

[0039] 1. Use general spraying device or sprinkler to sprinkle hygroscopic dust suppressant on the walls, ground and top surface of the building to be demolished to increase the water content of the building as much as possible, r...

Example Embodiment

[0050] Example 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 underground floors (12m in height), which is a frame-shear wall structure. The whole building has a triangular prism shape, and the two straight sides of the prism are both 48m long. Tianhe City West Tower is about 4.5m above the construction section of Metro Line 3, the horizontal distance from Line 1 is only about 20m, and the distance from the main building of Tianhe City is only 1.5cm. It is located in the downtown area, and the blasting environment is very good. Complex, in order to minimize dust pollution, we have adopted the following dust reduction methods:

[0052] 1. Use general spraying device or sprinkler to sprinkle hygroscopic dust suppressant on the walls, ground and top surface of the building to be demolished to increase the water content of the...

Example Embodiment

[0066] Example 3.

[0067] Guangdong Hongda Blasting Engineering Co., Ltd. blasted and demolished Qingdao Ocean Hotel on February 21, 2007. 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, the main building is 45.7m high (13 floors), and the partial height is 54.4m (15 floors). The main building has a total area of ​​14,000m2. 2 . The surrounding environment of Ocean Hotel is complex. To the east of the main building is the Ocean Building under construction; 35 meters to the west of the main building is the Qingdao International Financial Center, between the entertainment city and Qingdao International Financial Center, which is a pedestrian passage; ), 30m away from the Hong Kong Middle Road underground pipeline area, green belt, non-motorized vehicle lane and motor vehicle lane in turn, across the road is the "JUSCO" shopping mall; 5m north of the east side of the mai...

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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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