CN104100099A - Method for cleaning building surface by dry sand spraying - Google Patents
Method for cleaning building surface by dry sand spraying Download PDFInfo
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- CN104100099A CN104100099A CN201410325677.2A CN201410325677A CN104100099A CN 104100099 A CN104100099 A CN 104100099A CN 201410325677 A CN201410325677 A CN 201410325677A CN 104100099 A CN104100099 A CN 104100099A
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- building surface
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Abstract
The invention discloses a method for cleaning the building surface by dry sand spraying. Different cleaning medium ingredients and ratios are adopted according to different conditions, such as time, material and pollution, of the building surface, the particle size of cleaning media ranges from 50 meshes to 180 meshes, different cleaning pressures and different gun-wall distances are adopted according to the requirements on cleaning effect, and authentic repairing of the building surface is achieved by means of dry sand spraying.
Description
Technical field
The present invention relates to build recovery technique field, relate in particular to a kind of for the harmless method of cleaning of the dry spraying of building surface sand.
Background technology
Due to a variety of causes, the reparation of the building styles that adopt were repaired more in the past, it is only the style of going back original building, do not consider to build former style and features, after repairing, whole building " is taken on an entirely new look ", being difficult to tell which part of building is left over by history, and which part is through repairing, and the material with the weathering of important historical value is all replaced by new material.Such repair mode is the simple copy to building just, has obliterated the historical information of floor decoration, has lost the meaning that building is repaired.The surface of some historical buildings is cut completely, and after " original state " repairs, the historical building with very high history and culture, technological value becomes the false antique that is tantamount to copy.
In recent years, more and more higher to building the cry of reparation of harmless and Echtheit, what the reparation of building is really needed is, repairing complete building looks over from afar, the style and features with original building, has kept the style of original building, but has been that left over by history gets off from can clearly telling which part nearby, which part is through repairing, and such reparation just meets the standard of the reparation of Historical Buildings.
Most domestic historical protective building has experienced repeatedly Late reformation; in the surperficial color in material, texture, thicken unclear; the wall face of the historical building for example having is cement mortar rendering layer; repeatedly coated with the decorative paint such as polyethylene water paint, paint, acrylic coating, carbon element class; surface spot stripping; lost the seriousness of historical building, with and the cultural traits and the historical relevance information that are contained.
Outside Wall Cleaning is the primary procedure to the protection of body of wall; remove all hazardous substancess on surface; comprise microorganism, soluble salt, slightly solubility duricrust, dust crock; and residual coating residue etc. after all previous reparation; alleviate the negative effect that environment produces; thereby extend the life-span of construction wall, when increasing outer surface of building attractive in appearance, do not injure the natural quality of the original material of external surface.
The cleaning principle of historical building is according to the correlation criterion of historical relic's protection industry; need to adopt the method for Environment protection cleaning to remove exterior wall coating material; and follow following principle: (1) can not adopt the severe corrosive materials such as strong acid and strong base, avoids subjects or experimenter to produce harm.Otherwise historical relic body will suffer corrosion failure, also do not meet the basic demand of historical relic's protection.(2) can not adopt volatile organic solvent, to avoid affecting surrounding environment and citizen.(3) avoid using the method for strong machinery and highly energy-consuming, in order to avoid historical relic body is produced to injury, such as giant and high-pressure sand blast method etc.
And in the method for taking in industry at present, exist such defect:
1. high-low pressure spraying-rinsing method, a large amount of moisture is difficult to all discharge after can infiltrating into plain brick wall pore, and causing secondary biological pollution to metope, and the structure that has easy damaged matrix inside of large quantity of moisture can cause the serious accumulation of salt in the surface soil phenomenon of the wall-surface patching work after cleaning simultaneously.
2. high steam, atomized water drench cleaning method, cannot remove surface completely whole artificially, biology and natural pollution.
3. chemical material cleaning method, a large amount of chemical compositions in chemical solvent or application, as sodium metasilicate, calcium hydroxide, calcium carbonate and oxirane Yang Huan propane copolymer etc., can stop over inner at plain brick wall, and forever cannot get rid of outside body of wall, under the long-term irradiation of sunshine middle-ultraviolet lamp, these chemical compositions can make metope look from outside to inside become, and can cause irreversible possible permanent damage to metope.
4. laser method is not suitable for scraggly surperficial dust fall, greasy dirt, water stain cleaning, and time-consuming taking a lot of work.
Therefore, our technician is devoted to develop the harmless cleaning method of the dry spraying of above-mentioned building sand, to solve above-mentioned deficiency.
Summary of the invention
Because the above-mentioned defect of prior art, technical problem to be solved by this invention is to provide a kind of to realize the harmless and Echtheit reparation of building surface, thoroughly to remove the pollutant of building surface, recover the original style and features of building surface, and building is not caused the cleaning method of secondary damage.
For achieving the above object, the invention provides the harmless physical cleaning method of the dry spraying of a kind of building surface sand, comprise the steps:
(a) situations such as the epoch of building surface, material, pollution are analyzed, determined the hardness of building surface self material, and the hardness of pollutant;
(b) preparation cleansing medium;
(c) regulate compressed-air actuated pressure;
(d) select distance and the cleansing medium spray regime of spray gun and target;
(e) to cleaning target, carry out the harmless physical cleaning of mist sand.
Further, the cleansing medium described in step (b) is quartz sand, calcium carbonate or garnet, or the mixture of three kinds of material mixture ratios.
Further, in step (b), the particle size range of quartz sand particle is: 50-120 order; The particle size range of calcium carbonate granule is: 80-130 order; The particle size range of garnet particle is: 80-130 order.
Further, in step (c) compressed-air actuated pressure at (0-12) MPa.
Further, in step (d), the distance of spray gun and target is held between 45-130CM, and the average unit time of staying of spray gun is 0.1-1.5 second/square centimeter.
Further, the speed of the sandblast described in step (d) is 0-100g/s.
Further, in step (d), the angle of spray gun and target is 90 degree.
Further, before cleaning, need be according to surperficial concrete condition, first effects on surface carries out pretreatment if needed.Described pretreatment refers to: if building surface is timber, and wood surface existence is rotted, carbonization phenomenon, need to before cleaning, according to protection, require to do curing processing; If building surface is timber, and there is thick and heavy oil paint in wood surface, need to be for oiliness enamelled coating grinding process before cleaning; If building surface is masonry material, and there is weathering phenomenon in brick masonry surface, need to before cleaning, according to protection, require to do to solidify to process; As building surface has special pattern, floriation, poster etc., need to before cleaning, according to protection, require to carry out covering protection processing.
Further, described building is historical building.
Wherein mist sand cleans and refers to that adopting stable compressed air is power, to be finely ground to 50～180 object cleansing mediums if quartz sand, calcium carbonate or garnet are with vaporific form, at the uniform velocity be ejected into building surface, due to the percussion of vaporific cleansing medium to building surface, remove the pollutant of building surface.This method is a kind of harmless physical cleaning method, and wherein the particle diameter of mist sand will affect the effect of cleaning.
The course of work as shown in Figure 2, air conditioner 1 provides compressed air, compressed air is inputted in gasholder 2, by gasholder 2, provide stable air-flow, air-flow enters moisture trap 3, and the condensed water in compressed air is gathered in the bottom 4 of gas, separator, cleansing medium 5 and air-flow mix in device 7, by electromagnetic voltage adjusting device 6, regulate pressure, the cleansing medium of mixing and water are delivered to spray gun, be sprayed onto building surface 8 and clean.
The inventive method is selected suitable cleansing medium, stable air pressure, suitable rifle wall distance and sandblast spray regime, the speed of output cleansing medium is even, with an angle of 90 degrees, spray on metope, with the mechanical means of mist sand, the pollutant accumulating is removed from metope, when guaranteeing that exterior wall surface preserves from, remove all kinds of precipitations and spot, and can adjust in real time according to the actual conditions of body of wall.
The inventive method both can have been removed the frivolous pollutant on body of wall top layer, also can as timber, mural painting, gypsum etc., accomplish can't harm to meticulous basic unit and clean.
Accompanying drawing explanation
Fig. 1 is the flow chart of building being done to the harmless physical cleaning process of spraying sand provided by the invention.
Fig. 2 is the fundamental diagram of the harmless physical cleaning of dry spraying sand used in specific embodiment of the present invention.
Fig. 3 is the timber photo before the harmless physical cleaning of dry spraying sand in specific embodiment of the present invention.
Fig. 4 is the timber photo after the harmless physical cleaning of dry spraying sand in specific embodiment of the present invention.
The specific embodiment
In an embodiment of the inventive method, the Republic of China's initial stage in Zhong Shi street, Chuansha, PVG (2013, Chinese historical culture name town) distinctive historical building barrier water plate is cleaned, the material of the barrier water plate in this project is China fir, in all previous reparation, be coated with thick and heavy tung oil, paint, the hard pollutant surface layer of the mixture strokes such as powder of lacquer putty for use on, basic unit is China fir material, in the process of cleaning, the composition that can not have water, and the pollutant material than surface layer is loose, when removing surface contaminant, the accurate control that the cleaning that damages need to be to cleaning pressure shine in Bu Dui basic unit.
According to the analysis of this historical building barrier water plate characteristic, adopt pointedly the harmless physical cleaning method of dry spray, the emphasis of implementing is the safety that guarantees basic unit's China fir material, in cleaning process, the original wood-grain texture of barrier water plate is not caused damage, surface abrasion is controlled at minimum zone, the surperficial thick and heavy pollutant of simultaneously removing barrier water plate, guarantees, non-secondary pollution residual without vestige:
The basis of implementing is that barrier water plate is cleaned to test, according to the difference of feature, position and the hardness of barrier water plate, in conjunction with the cleaning performance that need to reach, determines and is applicable to final cleaning pressure, cleansing medium proportioning, rifle wall distance and the cleaning method that barrier water plate cleans.Confirm feature, position and the material of external surface pollutant basic unit simultaneously, determine that sandblast cleaning hour hands effects on surface position needs respectively the time stopping, and guarantees the wood-grain texture not damaged to basic unit.
Specific implementation process comprises the steps:
(1) connect air compressor and sand-blasting machine;
(2) select suitable nozzle;
(3) open air compressor;
(4) to feed bin, add cleansing medium, wherein the size of cleansing medium and kind are chosen in work progress and test by sample, before construction, through the approval of owner and design side, to be formulated as the volume ratio of garnet and calcium carbonate be 9:1 to cleansing medium in the present embodiment;
(5) regulate compressed-air actuated pressure at the slow pressure tank 3Mpa that calms the anger, spout pressure 1.8Mpa, the stressed 300kg/m2 of metope
(6) start to clean.Use independently air compressor that cleansing medium is ejected on metope with certain speed, the speed of injection is freely controlled by air compressor, by mechanical method by the dirt accumulating from hindering water plate surface removal.According to the different pollution condition of barrier water plate; the exterior wall resist technology workman of specialty moves horizontally spray gun; spray gun becomes an angle of 90 degrees with metope; the distance of spray gun and metope remains between 45-50CM; the average unit time of staying of spray gun is about 1-1.5 second/square centimeter, and barrier water plate is carried out to careful cleaning comprehensively.
Chemical cleaning project, according to sequentially carrying out from top to bottom, is confirmed and analyzes the effect of cleaning in time in work progress.
Construction precautions:
1. on pair external surface, do not need the position of cleaning, adopt the method for baffle plate protection to protect.
2. the residual harmful substance not of the metope after chemical cleaning project;
Strict enforcement through above operation; cleaned with flying colors the former thick and heavy pollutant retaining in Zhong Shi street, Chuansha historical building barrier water plate surface; and the China fir wood-grain texture to basic unit has been accomplished harmless protection, allow the barrier water plate in national history culture name town be retained and to represent.
Claims (10)
1. a dry spraying sand cleaning method for building surface, is characterized in that, adopt stable air-flow, particle size range is at 50-180 object cleansing medium, and cleansing medium is ejected into building surface with vaporific form, removes the pollutant of building surface.
2. the dry spraying of building surface as claimed in claim 1 sand cleaning method, comprising following steps:
(1) epoch of building surface, material, pollution condition are analyzed, determined the hardness of building surface self material, and the hardness of pollutant;
(2) preparation cleansing medium;
(3) regulate ratio and the compressed-air actuated pressure of cleansing medium;
(4) select distance and the cleansing medium spray regime of spray gun and target;
(5) target be can't harm to physical cleaning.
3. the dry spraying of building surface as claimed in claim 1 sand physical cleaning method, wherein said cleansing medium is quartz sand, calcium carbonate or garnet, or the mixture of two or three material formulation wherein.
4. building surface as claimed in claim 3 is done spraying sand physical cleaning method, and wherein the particle size range of quartz sand particle is: 50-120 order; The particle size range of calcium carbonate granule is: 80-130 order; The particle size range of garnet particle is: 80-130 order.
5. building surface as claimed in claim 2 is done spraying sand physical cleaning method, and wherein compressed-air actuated pressure is at (0-12) MPa.
6. building surface as claimed in claim 2 is done spraying sand physical cleaning method, and wherein the distance of spray gun and target is held between 45-130CM, and the average unit time of staying of spray gun is 0.1-1.5 second/square centimeter.
7. building surface as claimed in claim 2 is done spraying sand physical cleaning method, and the speed of wherein said sandblast is 0-100g/s.
8. building surface as claimed in claim 2 is done spraying sand physical cleaning method, and wherein the angle of spray gun and target is 90 degree.
9. building surface as claimed in claim 2 is done spraying sand physical cleaning method, before wherein cleaning, need be according to surperficial concrete condition, first effects on surface carries out pretreatment if needed, described pretreatment refers to: if building surface is timber, and wood surface exists rotten, carbonization phenomenon, need to before cleaning, according to protection, require to do to solidify processing; If building surface is timber, and there is thick and heavy oil paint in wood surface, need to be for oiliness enamelled coating grinding process before cleaning; If building surface is masonry material, and there is weathering phenomenon in brick masonry surface, need to before cleaning, according to protection, require to do to solidify to process; As building surface has special pattern, floriation, poster etc., need to before cleaning, according to protection, require to carry out covering protection processing.
10. the dry spraying of building surface as claimed in claim 1 sand physical cleaning method, wherein builds as historical building.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410325677.2A CN104100099B (en) | 2014-07-09 | 2014-07-09 | The dry spraying in a kind of building surface sand cleaning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410325677.2A CN104100099B (en) | 2014-07-09 | 2014-07-09 | The dry spraying in a kind of building surface sand cleaning method |
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| CN104100099A true CN104100099A (en) | 2014-10-15 |
| CN104100099B CN104100099B (en) | 2016-11-09 |
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| CN201410325677.2A Expired - Fee Related CN104100099B (en) | 2014-07-09 | 2014-07-09 | The dry spraying in a kind of building surface sand cleaning method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018159172A (en) * | 2017-03-22 | 2018-10-11 | ヤマダインフラテクノス株式会社 | Maintenance method for steel structure, and maintenance processing system for steel structure |
| CN110067403A (en) * | 2019-05-14 | 2019-07-30 | 山东工艺美术学院 | Ancient building exterior wall restorative procedure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06317028A (en) * | 1993-03-12 | 1994-11-15 | Sekisui Chem Co Ltd | Building coating surface repairing sheet and method |
| JPH0940888A (en) * | 1995-07-31 | 1997-02-10 | Nippon Parkerizing Co Ltd | Agent for suppressing and treating pollution of building surface and pollution suppressing treatment using the same |
| JP2002038727A (en) * | 2000-07-27 | 2002-02-06 | Dyflex Corp | Crack repairing method of concrete building |
| CN101446137A (en) * | 2007-11-27 | 2009-06-03 | 上海宇飞房地产经纪事务所 | Repairing technique of a red dry wall of a historical building |
| CN101864843A (en) * | 2009-04-14 | 2010-10-20 | 武汉建工股份有限公司 | Method for repairing floriation and linellae of granitic plaster on historical building |
-
2014
- 2014-07-09 CN CN201410325677.2A patent/CN104100099B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06317028A (en) * | 1993-03-12 | 1994-11-15 | Sekisui Chem Co Ltd | Building coating surface repairing sheet and method |
| JPH0940888A (en) * | 1995-07-31 | 1997-02-10 | Nippon Parkerizing Co Ltd | Agent for suppressing and treating pollution of building surface and pollution suppressing treatment using the same |
| JP2002038727A (en) * | 2000-07-27 | 2002-02-06 | Dyflex Corp | Crack repairing method of concrete building |
| CN101446137A (en) * | 2007-11-27 | 2009-06-03 | 上海宇飞房地产经纪事务所 | Repairing technique of a red dry wall of a historical building |
| CN101864843A (en) * | 2009-04-14 | 2010-10-20 | 武汉建工股份有限公司 | Method for repairing floriation and linellae of granitic plaster on historical building |
Non-Patent Citations (2)
| Title |
|---|
| 张治国等: "海洋出水石质文物表面凝结物的清洗技术研究", 《石材》 * |
| 成帅: "近代历史性建筑维护与维修的技术支撑", 《中国博士学位论文全文数据库》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018159172A (en) * | 2017-03-22 | 2018-10-11 | ヤマダインフラテクノス株式会社 | Maintenance method for steel structure, and maintenance processing system for steel structure |
| CN110067403A (en) * | 2019-05-14 | 2019-07-30 | 山东工艺美术学院 | Ancient building exterior wall restorative procedure |
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| Publication number | Publication date |
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| CN104100099B (en) | 2016-11-09 |
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