CN102744956A - Nano-dry powder fully-closed continuous rolling plate making process - Google Patents
Nano-dry powder fully-closed continuous rolling plate making process Download PDFInfo
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- CN102744956A CN102744956A CN2012102186260A CN201210218626A CN102744956A CN 102744956 A CN102744956 A CN 102744956A CN 2012102186260 A CN2012102186260 A CN 2012102186260A CN 201210218626 A CN201210218626 A CN 201210218626A CN 102744956 A CN102744956 A CN 102744956A
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Abstract
Relating to the technical field of thermal insulation material production, the invention provided a nano-dry powder fully-closed continuous rolling plate making process, which is characterized in that: the process is completed without changing powder physical properties and dry powder state and in a closed device with a negative pressure ventilation system, the steps of quantitative discharging, material loosening, high limiting and material spreading, double-side film covering, rolling, step-by-step rolling, servo cutting and delivering are carried out in order, and the gas inside a box body is treated and then discharged up to standards. The process provided in the invention adopts a nano-dry powder direct continuous rolling molding technology, guarantees the thermodynamic properties of a core material, also meets the demands of industrialized and large-scale production, and has the advantages of high efficiency, fully closed production process, and no dust pollution to the environment.
Description
Technical field:
The present invention relates to the production technical field of insulation material, be specifically related to the totally-enclosed continuous rolling mask-making technology of nanometer dry powder.
Background technology:
The VIP vacuum heat-insulating plate is state-of-the-art in the world thermal insulation material, and its thermal conductivity coefficient is less than 0.004w/m.k.Vacuum heat-insulating plate adopts the vacuum heat-insulation principle, is made up of the trapping film of core heat-barrier material, gas absorption material and sealing, and filling core and vacuum protection layer are tight compound, the heat transmission that can effectively avoid cross-ventilation to cause.Thermal conductivity factor reduces significantly, thereby reaches excellent heat insulation effect.Existing core material of vacuum heat insulation plate is used materials such as glass, rock wool, polyurethane more, but the hot property of these materials decay is very fast, or destroys bad border, energy consumption being eliminated progressively such as not up to standard when harmful, discarded.
Developed nanometer SiO2 mixing core, not only heat-insulating property is excellent at present, and heat conductivility is stable, and damped cycle is long, and main material nanometer SiO2 (main component of sand) can back to nature, can not work the mischief to human body and surrounding environment.The VIP vacuum heat-insulating plate has huge market potential and wide commercial promise as energy-saving and cost-reducing key technology.Nanometer SiO2 powder is that the vacuum heat-insulating plate of core will replace existing polyurethane foam insulation material, and it is fast, harmful and pollute the cores such as glass fibre, asbestos in bad border also can to replace thermal property decay gradually.But because nanometer SiO2 mixing core is a dry mash, density only is about 200kg/m
3Dusty material very easily disperses, easy-formation not, and core is prone to broken, is difficult to realize that large-scale industrialization produces continuously.
Existing various powder making sheet technology have passes through to add water (or glue or other solvent) and earlier powder is made the liquid body, reshaping, drying, such making sheet process change the rerum natura of material; The mould that passes through that has is pressed into the powder plate with press; Though guaranteed rerum natura like this; But efficient is too low; The performance that these technologies all can not satisfy nanometer SiO2 core material of vacuum heat insulation plate guarantees and requirement of large-scale production that the production technology of therefore developing new suitable SiO2 vacuum heat-insulating plate large-scale production is very urgent.
Summary of the invention:
Technical problem to be solved by this invention is to provide a kind of and is keeping under nanometer powder rerum natura and the immovable situation of state, can realize the totally-enclosed continuous rolling making sheet of the nanometer dry powder new technology of scale, suitability for industrialized production.
Technical scheme below technical problem to be solved by this invention adopts realizes:
The totally-enclosed continuous rolling mask-making technology of nanometer dry powder is characterized in that: the totally-enclosed continuous rolling mask-making technology of described dry powder is in the device that has the negative pressure exhausting system of sealing, to accomplish, and carries out successively according to following steps,
(1) according to size, thickness and the density of required powder plate, the powder stock that is used for making sheet is carried out quantitative discharging, discharging speed is adjustable continuously;
(2) powder stock behind the quantitative discharging is carried out loose metal;
(3) height of adjusting height limiter carries out limit for height and spreads out all powder stock;
(4) cover nonwoven above the powder stock after limit for height is shakeout, conveyer belt bottom nonwoven forms the breathable films covering of powder upper and lower surface in addition;
(5) height of adjusting pressure roller carries out roll-in step by step to setting thickness to the powder stock warp that is coated with film to individual pair roller; This functional section also can carry out roll-in through the chain row who is connected by pair roller;
(6) size is through servo cutting on demand again to be depressed into the powder plate of setting thickness, and differential draws back, and what equipment was finally seen off is exactly a powder plate that piece is qualified.
The gas that described exhausting system is extracted out from device for board manufacture is qualified discharge after treatment, and well-illuminated material is used in the both sides of exhausting system.
The process of described (2) to (6) all is on the continuously adjustable conveyer belt of speed, to accomplish.
The invention has the beneficial effects as follows: the present invention adopts the direct continuous rolling forming technique of powder under the situation that does not change the dry powder rerum natura, make the powder plate with nanometer powder; Both guaranteed the thermodynamic property of powder board core material; Satisfied the production demand of industrialization and scale again, efficient is high, and quantum of output is big; And production process is totally-enclosed, can not cause dust pollution to environment.
Description of drawings:
Fig. 1 is a process chart of the present invention.
The specific embodiment:
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand; Below in conjunction with concrete diagram; Refrigerator to make 1410mm*535mm*20mm (the wide X of long X is thick) uses nanometer SiO2 core material of vacuum heat insulation plate to be example, further sets forth the present invention.
As shown in Figure 1, the totally-enclosed continuous rolling mask-making technology of dry powder is in the device that has the negative pressure exhausting system of sealing, to accomplish, the pollution of having avoided powder density characteristics little and that very easily fly upward to cause to working environment, and carry out successively according to following steps,
(1) according to size, thickness and the density of production powder plate, to being used for the powder stock pair roller quantitative discharging of making sheet, the discharging opening width is slightly less than 535mm, and discharging speed is adjustable continuously;
(2) discharging to below has on the conveyer belt of side plate, and side plate has enough rigidity, and side sheet room is 535mm apart from being powder plate width;
(2) powder stock behind the quantitative discharging is carried out loose metal, the caking that might form when avoiding the pair roller discharging guarantees that powder stock can be full of on the whole width of conveyer belt;
(3) height of height limiter can be regulated; Powder stock is carried out limit for height and spreads out all, on width, be full of, further guarantee the uniformity of sheet material packing; Make powder stock get into the stage of roll-in step by step, guarantee that the powder plate unit intensity of processing is identical with identical loft and thickness;
(4) the top covering breathable films of the powder stock after limit for height is shakeout, conveyer belt bottom nonwoven in addition, the breathable films that forms the powder upper and lower surface covers.This breathable films of selecting for use is a nonwoven, avoids that powder flies upward in the roll-in process, conveniently simultaneously discharges contained gas in the powder, increases the roll-in effect, prevents that crackle from appearring in the powder plate, also is convenient to the completion of operations such as follow-up cutting, packing, and it is broken to be unlikely to the powder plate;
(5) height of adjusting pressure roller; Powder stock to being coated with film carries out roll-in step by step, to required 20mm thickness, considers the physical difference of different powders until roll-in; Not roll-in performance and rebound amount not equal, the height of pressure roller can be regulated within the specific limits;
(6) roll-in is to the powder plate of setting thickness; See off through conveyer belt, the cast-cutting saw of warp and conveyer belt constant speed movement laterally together cuts the powder plate together with nonwoven, and cut lengths are 1410mm; Draw back through another conveyer belt differential again; Thereby what obtain making is of a size of 1410mmX535mmX20mm (long X is generous) with nonwoven up and down, the qualified powder plate of a piece of consistent in density, and its core as vacuum heat-insulating plate gets into next process.
The negative pressure exhausting system is that whole device for board manufacture is sealed, and the gas of extracting out in install discharges after reaching discharge standard after treatment, guarantees that gas can not work the mischief to the healthy of surrounding environment and worker; The exhausting system both sides use glass to make the operation conditions of being convenient to observe device for board manufacture like this.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification just explains principle of the present invention; Under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (3)
1. the totally-enclosed continuous rolling mask-making technology of nanometer dry powder is characterized in that: the totally-enclosed continuous rolling mask-making technology of described dry powder is in the device that has the negative pressure exhausting system of sealing, to accomplish, and carries out successively according to following steps,
(1) according to size, thickness and the density of required powder plate, the powder stock that is used for making sheet is carried out quantitative discharging, discharging speed is adjustable continuously;
(2) powder stock behind the quantitative discharging is carried out loose metal;
(3) height of adjusting height limiter carries out limit for height and spreads out all powder stock;
(4) cover nonwoven above the powder stock after limit for height is shakeout, conveyer belt bottom nonwoven forms the breathable films covering of powder upper and lower surface in addition;
(5) height of adjusting pressure roller carries out roll-in step by step to setting thickness to the powder stock warp that is coated with film to individual pair roller; This functional section also can carry out roll-in through the chain row who is connected by pair roller;
(6) size is through servo cutting on demand again to be depressed into the powder plate of setting thickness, and differential draws back, and what equipment was finally seen off is exactly a powder plate that piece is qualified.
2. the totally-enclosed continuous rolling mask-making technology of nanometer dry powder according to claim 1 is characterized in that: the gas that described exhausting system is extracted out from device for board manufacture is qualified discharge after treatment, and the both sides of exhausting system make with transparent material.
3. the totally-enclosed continuous rolling mask-making technology of nanometer dry powder according to claim 1 is characterized in that: the process of described (2) to (6) all is on the continuously adjustable conveyer belt of speed, to accomplish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012102186260A CN102744956A (en) | 2012-06-28 | 2012-06-28 | Nano-dry powder fully-closed continuous rolling plate making process |
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| CN2012102186260A CN102744956A (en) | 2012-06-28 | 2012-06-28 | Nano-dry powder fully-closed continuous rolling plate making process |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1792592A (en) * | 2004-12-22 | 2006-06-28 | 萨克米伊莫拉机械合作社合作公司 | System for compacting ceramic powders for forming slabs using a belt |
| CN101879749A (en) * | 2010-07-05 | 2010-11-10 | 邹晓峰 | Ceramic tile micropowder distributing method |
| CN201669767U (en) * | 2010-06-10 | 2010-12-15 | 韦钧 | Powder mica board forming device |
| CN102146638A (en) * | 2011-01-21 | 2011-08-10 | 金红叶纸业集团有限公司 | Enclosed dust collector of rewinder for papermaking |
| CN102452182A (en) * | 2010-10-22 | 2012-05-16 | 上海宝钢化工有限公司 | Roll belt compactor for compacting powdery raw material |
-
2012
- 2012-06-28 CN CN2012102186260A patent/CN102744956A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1792592A (en) * | 2004-12-22 | 2006-06-28 | 萨克米伊莫拉机械合作社合作公司 | System for compacting ceramic powders for forming slabs using a belt |
| CN201669767U (en) * | 2010-06-10 | 2010-12-15 | 韦钧 | Powder mica board forming device |
| CN101879749A (en) * | 2010-07-05 | 2010-11-10 | 邹晓峰 | Ceramic tile micropowder distributing method |
| CN102452182A (en) * | 2010-10-22 | 2012-05-16 | 上海宝钢化工有限公司 | Roll belt compactor for compacting powdery raw material |
| CN102146638A (en) * | 2011-01-21 | 2011-08-10 | 金红叶纸业集团有限公司 | Enclosed dust collector of rewinder for papermaking |
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Application publication date: 20121024 |