CN101348402B - Fireworks gunpowder dehumidification and drying method and apparatus - Google Patents
Fireworks gunpowder dehumidification and drying method and apparatus Download PDFInfo
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- CN101348402B CN101348402B CN200810032137XA CN200810032137A CN101348402B CN 101348402 B CN101348402 B CN 101348402B CN 200810032137X A CN200810032137X A CN 200810032137XA CN 200810032137 A CN200810032137 A CN 200810032137A CN 101348402 B CN101348402 B CN 101348402B
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- air
- dehumidifying
- drying
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- 238000001035 drying Methods 0.000 title claims abstract description 79
- 238000007791 dehumidification Methods 0.000 title claims description 18
- 239000003721 gunpowder Substances 0.000 title claims description 15
- 239000000843 powder Substances 0.000 claims abstract description 50
- 238000010438 heat treatment Methods 0.000 claims abstract description 32
- 239000004065 semiconductor Substances 0.000 claims abstract description 15
- 238000007605 air drying Methods 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims description 4
- 238000001179 sorption measurement Methods 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 4
- 239000003245 coal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910001120 nichrome Inorganic materials 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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Abstract
The invention relates to a method and a device for dehumidifying and drying fireworks-firecracker powder. A dehumidifying and drying device capable of both dehumidifying and drying is adopted outside a powder dehumidifying and drying chamber or a container; and dehumidifying and drying for the powder inside the dehumidifying and drying chamber or the container are carried out directly through feeding dehumidified and heated dry air. The device comprises an air dehumidifying part and an air drying part which are connected in series, wherein an air dehumidifying device part is arranged in front, while an air drying device part is connected in series behind the air dehumidifying device part; the air drying part is a drying device taking a semiconductor PTC heating sheet as a heating element; the semiconductor PTC heating sheet is arranged on the outlet of the drying part; an air inlet of the air drying part is connected with the air outlet of the air dehumidifying part through an air pipe; and a fan used for conveying dehumidified air is connected in series inside the air pipe connecting the air outlet of the air dehumidifying part and the air inlet of the air drying part.
Description
Technical field
The present invention relates to a kind of dehumidifying drying method and device of dangerous dust.Refer in particular to dehumidifying drying method and the device of fireworks gunpowder in machining process, be mainly used in the fireworks process of manufacture dehumidifying drying medicinal powder.
Background technology
In the process of manufacture of fireworks, in order to guarantee the quality of fireworks, must be before perfusion carry out dehumidifying drying and handle, the effect when guaranteeing that fireworks is seted off the medicinal powder of fireworks.At present, be used for the mode that the medicinal powder to fireworks carries out dehumidifying drying in production process and mainly contain dual mode:
One, with conventional coal or oil or natural gas boiler generation steam; Send into the production place through the vapour line system again; Heat exchanger; Through the oven dry of the hot steam in heat exchanger heat exchanger tube wall, carry out heat exchange through the air in heat exchanger tube wall loses heat gas and production site medicinal powder dehumidifying drying chamber or the container again, with this wet steam in medicinal powder is removed.There are several shortcomings in this structure:
1, cost is high: owing to be to adopt pipeline system to carry warm air, therefore must be from the boiler house to production plant pipeline installation system.And owing to be the hazardous area, the boiler house must guarantee with production plant certain distance is arranged, and therefore, its steel consumption amount is big, and total system is complicated, and boiler and transport pipe cost thereof are very high, and the effect of dehumidifying is not fine.
2, energy dissipation is serious, and the environmental protection influence is big: because the mode drying dehumidification of employing coal or oil, gas firing, its thermo-efficiency is low, send heat pump also can waste electric energy to the conveying of hot steam, and the waste gas, the waste residue that produce can influence environment.
3, damage in boilers, water pipe from freezing crack etc. can cause serious accident.
Two, the mode with the heating of common electrical heat pipe produces warm air, sends in production site medicinal powder dehumidifying drying chamber or the container again, and medicinal powder is carried out dehumidifying drying.This mode utilizes conventional electric drying mode to come medicinal powder is carried out dehumidifying drying.There is following shortcoming in such electric drying mode:
1, thermo-efficiency is low, and energy dissipation is bigger: owing to be that resistance produces heat energy after through electric current and heats the air dewetting oven dry, the temperature during the wire spiral heating is very high, generally will reach more than 800 ℃, and medicinal powder meets with it and blasts being easy to.In order to guarantee that safety must guarantee that there is certain distance in electric heating device and workshop; Arrive the workshop through pipe-line transportation again; Thermosteresis is very serious in the course of conveying of warm air like this, has a big chunk heat to carry through pipeline and is dispersed in the air, so energy utilization is not high.
2, security, safety are not high: because the surface temperature of resistance drying mode nichrome wire is very high; Will produce spark or blast as long as run into fireworks or firecrackers medicinal powder above dropping on; Even if electro-heat equipment is away from production site; But have medicinal powder unavoidably and pass to the electro-heat equipment place, be easy to occur security incident through air.
3, maintenance capacity is big: in the resistance heating process, and its nichrome wire part heating temp high (800-900 ℃), oxidation easily, so work-ing life is short, maintenance capacity is big.
Therefore necessary this is improved.
Summary of the invention
The present invention is directed in the process of manufacture of existing fireworks, the deficiency of medicinal powder dehumidifying drying mode, it is higher to propose a kind of thermo-efficiency, and cost is low, and safeguard and change conveniently, and the medicinal powder dehumidifying drying method and the device of the novel fireworks of safe reliability.
Goal of the invention of the present invention realizes through following technical proposals.A kind of medicinal powder dehumidifying drying method of fireworks; Outside medicinal powder dehumidifying drying chamber or container; Adopting one both can dehumidify; The dehumidifying drying device that can dry again is directly to the medicinal powder dehumidifying drying in dehumidifying drying chamber or the container, and described dehumidifying drying device is that the mode by dehumidifying part and the operation of oven dry part direct serial makes up, and the medicinal powder of fireworks dehumidified and dries through in dehumidifying drying chamber or container, sending into dry air.Described fireworks gunpowder dehumidification drying unit comprises an air dewetting part and an air oven dry part at least; And air dewetting part and two parts of air oven dry part are serially connected; Wherein, The air dehumidifier part is preceding, and the air drying unit partly is serially connected in after the air dehumidifier part.Described air dewetting part can be any one dehydrating unit of cooling and dehumidifying or adsorption and dehumidification, but moisture removal need match with the space size of medicinal powder dehumidifying drying chamber or container.Described air oven dry part is the drying unit of heating element for the sheet that generates heat with semi-conductor PTC.Semi-conductor PTC heating sheet can be PTC tinsel or ceramic heat plate, and the heating temp of semi-conductor PTC heating sheet is below 200 ℃.Semi-conductor PTC heating sheet places the exit of oven dry part, and the air intake vent of air oven dry part links to each other through airduct with the air outlet of air dewetting part.In the airduct that the air intake vent of the air outlet of air dewetting part and air oven dry part links to each other, be serially connected with the blower fan of air after transmitting dehumidifying.Described blower fan can aerofoil fan or centrifugal blower.
The present invention has following advantage:
1, less investment: because the present invention adopts conventional cooling and dehumidifying or adsorption and dehumidification, and when the oven dry air, use semi-conductor PTC heating original paper, without boiler oven dry and off-set facility, its investment is merely the 50%-30% of original steam oven dry.
2, save energy: the relative steam-pipe oven dry of electromagnetic drying, energy-saving effect can reach more than 50%; Can economize on electricity more than 30% with respect to the resistance drying mode.
3, safe and reliable: because what adopt is semi-conductor PTC heating original paper, and the control heating temp is below 200 ℃, and its Heating element surface temperature does not reach the temperature that fires, and does not therefore have security incident hidden danger.
Description of drawings
Fig. 1 is the system architecture synoptic diagram of the present invention in actual industrial and mineral place;
Fig. 2 is a theory structure synoptic diagram of the present invention.
Embodiment
To combine accompanying drawing and embodiment that the present invention is done further description below.
Embodiment one
Can find out from accompanying drawing; The present invention is a kind of dehumidifying drying method and device of fireworks gunpowder; Outside medicinal powder dehumidifying drying chamber or container; Adopt one and both can dehumidify, the dehumidifying drying device that can dry again passes through to carry the dry air that also heats after the dehumidifying directly to the medicinal powder dehumidifying drying in dehumidifying drying chamber or the container.Described dehumidifying drying device is to be made up of the be serially connected mode of combination operation of dehumidifying part and oven dry part, and the medicinal powder of fireworks dehumidified and dries through in medicinal powder dehumidifying drying chamber or container, sending into the freeze-day with constant temperature air.Described fireworks gunpowder dehumidification drying unit comprises an air dewetting part 1 and an air oven dry part 2 at least; And 2 two parts of air dewetting part 1 and air oven dry part are serially connected; Wherein, Air dewetting part 1 is preceding, and air oven dry part 2 is serially connected in after the air dewetting part 1; The outlet of air oven dry part 2 is communicated with through pipeline 7 with the interior space 4 of medicinal powder dehumidifying drying chamber or container 3, and the inlet of air dewetting part 1 is communicated with through pipeline 8 with the internal space 4 of medicinal powder dehumidifying drying chamber or container 3 or directly communicates with outdoor 5.Best effect is that the interior space 4 of medicinal powder dehumidifying drying chamber or container is enclosed space; The interior space 4 of the inlet of air dewetting part 1 and medicinal powder dehumidifying drying chamber or container 3 is through 7 airtight connections of pipeline; The interior space 4 of the outlet of air drying unit part 2 and medicinal powder dehumidifying drying chamber or container 3 makes medicinal powder dehumidifying drying chamber or container 3 form an enclosed space system with the present invention through 8 airtight connections of pipeline.Described air dewetting part 1 can be the dehydrating unit of any one big load of cooling and dehumidifying or adsorption and dehumidification, but moisture removal need match with the interior space 4 sizes of medicinal powder dehumidifying drying chamber or container 3.Described air oven dry part 2 is the drying unit of heating element for the sheet 6 that generates heat with semi-conductor PTC.Semi-conductor PTC heating sheet 6 can be ceramic PTC heating board or metal PTC heating board.Semi-conductor PTC heating sheet 6 places the exit 9 of hot spots.The air intake vent 10 of air heating part 2 links to each other through airduct 12,16 with the air outlet 11 of air dewetting part 1, in the air outlet 11 of air dewetting part 1 and airduct 12 that the air intake vent 10 of air heating part 2 links to each other, is serially connected with the blower fan 13 that transmits dehumidifying back air.Described blower fan 13 can aerofoil fan or centrifugal blower.Air outlet in the air heating part also is provided with the TP that is used to control temperature out, is provided with system on the top of whole device, guarantees that through electric control system semi-conductor PTC heating sheet 6 is in temperature constant state.
Mode of operation of the present invention is: medicinal powder 15 is put on the worktable 14 of the interior space 4 of medicinal powder dehumidifying drying chamber or container 3; Restart medicinal powder dehumidifying drying device; The interior space 4 toward medicinal powder dehumidifying drying chamber or container 3 is sent into dry air, and stirs medicinal powder 15 in good time, make the medicinal powder thorough drying after; Can carry out the medicine can, medicinal powder poured in the container of packing medicinal powder of fireworks.
Claims (8)
1. fireworks gunpowder dehumidification furnace drying method; Outside medicinal powder dehumidifying drying chamber or container; Adopt one and both can dehumidify, the dehumidifying drying device that can dry again passes through to carry the dry air that also heats after the dehumidifying directly to the medicinal powder dehumidifying drying in dehumidifying drying chamber or the container; It is characterized in that: described dehumidifying drying device is to be made up of the be serially connected mode of combination operation of dehumidifying part and oven dry part, and the medicinal powder of fireworks dehumidified and dries through in medicinal powder dehumidifying drying chamber or container, sending into the freeze-day with constant temperature air.
2. fireworks gunpowder dehumidification drying unit; Described fireworks gunpowder dehumidification drying unit comprises an air dewetting part (1) and an air oven dry part (2) at least; And air dewetting part (1) and (2) two parts of air oven dry part are serially connected; Wherein, air dewetting part (1) is preceding, and air oven dry part (2) is serially connected in air dewetting part (1) afterwards; It is characterized in that: the outlet of described air oven dry part (2) is communicated with through pipeline (7) with the interior space (4) of medicinal powder dehumidifying drying chamber or container (3), and the inlet of air dewetting part (1) is communicated with through pipeline (8) with the interior space (4) of medicinal powder dehumidifying drying chamber or container (3) or directly communicates with outdoor (5).
3. fireworks gunpowder dehumidification drying unit as claimed in claim 2; It is characterized in that: the interior space (4) of described medicinal powder dehumidifying drying chamber or container is enclosed space; The inlet of air dewetting part (1) and the interior space (4) of medicinal powder dehumidifying drying chamber or container (3) be through airtight connection of pipeline (7), the air drying unit partly the interior space (4) of outlet and the medicinal powder dehumidifying drying chamber or the container (3) of (2) through airtight connection of pipeline (8).
4. fireworks gunpowder dehumidification drying unit as claimed in claim 2; It is characterized in that: described air dewetting part (1) can be the dehydrating unit of any one big load of cooling and dehumidifying or adsorption and dehumidification, but moisture removal need match with the interior space (4) size of medicinal powder dehumidifying drying chamber or container (3).
5. fireworks gunpowder dehumidification drying unit as claimed in claim 5 is characterized in that: described air oven dry part (2) is the drying unit of heating element for the sheet (6) that generates heat with semi-conductor PTC; Semi-conductor PTC heating sheet (6) places the exit (9) of hot spots.
6. fireworks gunpowder dehumidification drying unit as claimed in claim 5 is characterized in that: described semi-conductor PTC heating sheet (6) can be ceramic PTC heating board or metal PTC heating board.
7. fireworks gunpowder dehumidification drying unit as claimed in claim 2; It is characterized in that: the air intake vent (10) of described air heating part (2) links to each other through airduct (12) with the air outlet (11) of air dewetting part (1), in the air outlet (11) of air dewetting part (1) and the air heating airduct (12) that partly air intake vent (10) of (2) links to each other, be serially connected with transmission dehumidify after the blower fan (13) of air.
8. fireworks gunpowder dehumidification drying unit as claimed in claim 7 is characterized in that: described blower fan (13) is aerofoil fan or centrifugal blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810032137XA CN101348402B (en) | 2008-08-22 | 2008-08-22 | Fireworks gunpowder dehumidification and drying method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810032137XA CN101348402B (en) | 2008-08-22 | 2008-08-22 | Fireworks gunpowder dehumidification and drying method and apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101348402A CN101348402A (en) | 2009-01-21 |
| CN101348402B true CN101348402B (en) | 2012-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810032137XA Expired - Fee Related CN101348402B (en) | 2008-08-22 | 2008-08-22 | Fireworks gunpowder dehumidification and drying method and apparatus |
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| Country | Link |
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| CN (1) | CN101348402B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108398060A (en) * | 2018-05-12 | 2018-08-14 | 浏阳市鸿安机械制造有限公司 | Firework powder dryer |
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2008
- 2008-08-22 CN CN200810032137XA patent/CN101348402B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101348402A (en) | 2009-01-21 |
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Granted publication date: 20120718 Termination date: 20180822 |
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