CN105299645A - Reverse gas radiation method - Google Patents
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- CN105299645A CN105299645A CN201410104836.6A CN201410104836A CN105299645A CN 105299645 A CN105299645 A CN 105299645A CN 201410104836 A CN201410104836 A CN 201410104836A CN 105299645 A CN105299645 A CN 105299645A
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Abstract
The invention discloses a reverse infrared radiation machining method for drying materials. Combustion air flow is injected into an air flow inlet in a gas ejecting mode, gas and combustion air form premixed gas, the premixed gas is ignited by an igniter to burn, cooling air is blown to continuously cool an ejecting pipe and the outer lateral wall of a burning portion, and materials pass through a radiation area below the burning portion to receive radiation generated by burning of pre-burning mixed air to achieve heating drying. An infrared radiator of reverse gas is achieved, the burning speed is also reduced, the method is applicable to materials heated and dried at a low temperature and the effects of energy conservation and emission reduction are achieved.
Description
Technical field
The present invention relates to industry heating, dry field, relate in particular to a kind of realize reverse combustion gas produce infrared radiation to the RADIATION PROCESSING method of heating material drying.
Background technology
Utilize infrared ray to the fuel factor principle of large molecule water body resonance cracking, carrying out evaporate to dryness processing with infrared radiation for material, is the common technology in current industry heating field.It is low that this technology relative atmospheric convective drying has energy consumption, the advantage that dry mass is good.
In practice, the production method of infrared radiation is mainly divided into: the radiation of electric ceramic plate and electric heating infrared fluorescent tube two kinds of modes.Both all adopt electric energy conversion to be heat-energy secondary HEATING INFRARED radiation carrier.Wherein, there is easy short circuit in electric heating infrared fluorescent tube, defect damaged and with high costs; And electric radiation needs to transform electric energy by chemical reaction, then secondary consumption electric energy conversion is heat radiation, and energy causes more energy consumption through multiple conversions.
Produce 10,000 kilocalorie heats with electric radiation, institute's consuming electric power about needs cost 12 yuan (by often degree electricity 1 yuan of calculating).And as changed to adopt combustion gas directly to generate thermal-radiating working method, producing 10,000 kilocalorie liquefied petroleums that heat consumes (by per kilogram 6.6 yuan calculating) and only needing about 6 yuan.Obviously, more economical with the radiation of combustion gas mode Heat of Formation.
In prior art field, gas-fired infrared radiation generator mainly comprises: infrared emitter from bottom to top the forward radiant burner of radiation material and infrared ray by radiation source from left and right sides to the antenna with side radiation direction burner of radiation material.And rarely have the reverse Gas-fired Radiator in Municipal of radiation source from top to bottom radiation material.In practice, what usually lain low by material to be processed is placed on processing conveyer belt, dries with the heating that load mode accepts radiant burner by heating work region.
Concerning the forward gas-fired infrared radiator of infrared ray autoradiolysis source radiation material from bottom to top: intercept between radiation source and material to be processed and have conveyer belt, conveyer belt bears ultrared direct radiation, material to be processed bears radiation indirectly across conveyer belt, cannot realize the direct radiation of infrared ray, heat drying efficiency is on the low side; And concerning infrared ray autoradiolysis source by side lateral radiation material gas-fired infrared radiator: material is away from radiation source, and heat drying effect is undesirable.
The reverse Gas-fired Radiator in Municipal designing a kind of radiation source from top to bottom radiation material can solve above-mentioned two technological deficiencies.But designing reverse Gas-fired Radiator in Municipal needs solution two technical problems: 1. reverse combustion will cause pre-mixing gas combustion to pour into above burner plate, how to control the input speed of pre-mixing gas combustion and the balance of burning velocity; 2. how to suppress heat upwards to conduct, the temperature controlling gas-fired infrared radiator prevents pre-mixing gas combustion from lighting inside burner plate and exploding.
Reverse infrared radiator of the prior art adopts mechanical air inlet mode, constantly blasts air stream from top to bottom with high power air blowers, and air stream drives combustion gas to burn at combustion front, with flame heating of metal net, makes wire netting launch infrared waves.The air stream one side that air blast blasts and combustion gas mixing, form pre-mixing gas combustion, on the other hand from the metallic walls of the reverse gas-fired infrared radiator of internal cooling, prevents tube wall temperature from spending height and light pre-mixing gas combustion generation blast in radiator inside again.For ensureing cooling effect, the air stream blasted must possess flow velocity faster.
There is negative interaction as described below in this technical scheme: 1. the speed of air-flow input is far longer than the speed of burning, and the mixing ratio of combustion gas and air is difficult to grasp, and cause incomplete combustion, amount of consumed gas is very large; 2. burner rating remains high, and to needing, the material of low-temperature heat drying is inapplicable.3. infrared emitter is by the wire netting heated, and causes infra-red radiation uneven.
In addition, in prior art, be blown into dry gas stream towards radiation area in direction along the horizontal plane with blow gun, to reach the technique effect of the radiation area that to be blown off by the rising steam of the waste gas produced after fuel gas buring and heated parts surface.
By radiation against quadratic power law, square being inversely proportional to of the radiation intensity of radiant body point source of light radiation and radiation length, radiant energy is spherical in spatial spread.The air stream be laterally blown into is very large to the destruction of high temperature dry bulb radiation field, significantly weakens radiation effect.
How to design a kind of infrared radiator both having supported reverse combustion gas, reduce burning velocity again simultaneously, be applicable to the material needing low-temperature heat drying, and the reverse infrared radiant burner of effects of energy saving and emission reduction can be reached, and a kind of method by using this reverse Gas-fired Radiator in Municipal to realize RADIATION PROCESSING, be the work that those skilled in the art should play initiative thinking.In addition, how to reduce horizontal dry gas stream must take in equally the interference of the radiation effect of radiation field.
Summary of the invention
The invention provides and a kind ofly use reverse infrared radiation generator to the RADIATION PROCESSING method of heating material drying, be intended to solve the problem.
The present invention solves the technical problem existed in above-mentioned technology, and the concrete technical scheme of employing is:
Use reverse infrared radiation generator to a RADIATION PROCESSING method for heating material drying, described reverse infrared radiation generator includes loophole, induction tunnel, combustion section, and described entrance port comprises combustion gas inlet and air inflow aperture;
It is characterized in that, specifically comprise the steps:
A. combustion gas spurts into combustion gas inlet with small-power gas nozzle, and combustion-supporting air flow produces negative pressure drainage by described combusted gas generant air slide effect, injects described air inflow aperture;
B. the supercharging in described induction tunnel of combustion gas and combustion air is mixed to form pre-mixing gas combustion;
C. pre-mixing gas combustion enters described combustion section, to light burn in described combustion section with igniter;
D. be blown into the lateral wall of cooling air to described induction tunnel and described combustion section to carry out continuing cooling;
E. under combustion section, edge arranges heat build-up baffle plate, flow to the burning of radiation generator combustion section metal shell edge with the pre-mixing gas combustion that described heat build-up baffle is imperfect combustion;
F. material is by the radiation area below combustion section, accepts the radiation that pre-burning mixture combustion produces, reaches heat drying.
The technique effect of technique scheme is adopted to be: to spray combustion gas with low power gas nozzle and enter induction tunnel from combustion gas inlet, combustion gas is clashed into induction tunnel inside pipe wall and is formed gamma angle, negative pressuren zone is formed by air slide effect, thus, negative pressure drainage effect is formed to edge, entrance port air, form injection air stream, induction tunnel is imported from entrance port air inflow aperture, belong to the air inlet mode of combustion gas injection but not the mechanical air inlet mode of air blast drive combustion gas air intake, the speed that air-flow blasts is far smaller than the air-flow input speed that the air blast of prior art machinery produces, reduce burning velocity, solve the problem of incomplete combustion.Simultaneously, air blast is to induction tunnel, combustion section and Department of Radiation outside continue to advertise cooling air, suppress combustion section heat upwards to conduct the gas-fired infrared radiator internal temperature caused too high, have stopped gas-fired infrared radiator tube wall temperature and have spent height and light pre-mixing gas combustion and the hidden danger of blasting.Along being provided with heat build-up baffle plate under combustion section, directly at radiation generator metal shell edge, burning causes metal-back temperature too high to prevent imperfect combustion air mixture.
Further improvement project is: in steps A, the combustion gas inlet small-power burner nozzle end air pressure of entrance port is preferably 2.8-3 kPa.
Adopt technique scheme: the input speed defining flammable premixed gas, makes the power of radiation generator meet the processing environment of the material to low-temperature heat drying.
Further improvement project is: described in step B, induction tunnel comprises fin, and described fin is distributed in the outer wall of described induction tunnel.
Further improvement project is: described in step B, induction tunnel comprises fin, and the rounded tab projection in described fin outer, described fin is evenly distributed on incident pipe outer wall.
By adopting technique scheme: the contact area increasing the cooling air that induction tunnel and air blast are blown into, enhances the cooling effect on induction tunnel surface, the temperature stabilization of maintenance induction tunnel, safeguards Gas-fired Radiator in Municipal work safety.
Further improvement project is: described in step B, injection portion comprises mixing unit and diffusion part from top to bottom, described mixing unit is vertical hollow cylinder, described diffusion part is vertical conical hollow cylinder, in the vertical direction and between mixing unit, have the oblique angle that leans outward of 8 °, spread at described induction tunnel diffusion part after the supercharging in described induction tunnel of combustion gas described in step B and combustion air is mixed to form pre-burning gaseous mixture.
By adopting technique scheme: the sectional area of diffusion part is more progressively to expand, and combustion-supporting air flow and combustion gas realize mixing compression in described mixing unit and form premixed gas, and carry out first time diffusion at diffusion part.
Further improvement project is: reverse infrared radiation generator also comprises diffusion storehouse, and described diffusion bin location is between described induction tunnel and described combustion section, and described diffusion storehouse outer wall is blown into cooling air by blower fan and continues cooling; Pre-mixing gas combustion described in step c spreads in described diffusion storehouse before entering described combustion section.
Further improvement project is: described diffusion storehouse comprises flow distribution plate, and described flow distribution plate is provided with tap hole, and described tap hole longitudinally runs through described flow distribution plate; Pre-mixing gas combustion described in step c spreads in described diffusion storehouse before entering described combustion section, spreads in the flow distribution plate especially in diffusion storehouse.
By adopting technique scheme: induction tunnel imports pre-mixing gas combustion carries out second time diffusion in diffusion storehouse, third time diffusion is carried out in flow distribution plate, the well-mixed combustion gas of induction tunnel end and air is made to be evenly distributed in combustion section, to overcome because of combustion gas with combustion-supporting air flow because proportion is different, enter diffusion storehouse from induction tunnel suddenly to spread two kinds of produced gases and again shunt, the technical problem of density unevenness, make burning on each position of combustion section average, ensure that the amount of radiation of each position of Department of Radiation keeps basically identical, make burning radiation more average.
Further improvement project is: in step C, combustion section comprises radiant combustion ceramic wafer, and described radiant combustion ceramic wafer is provided with the burner port of longitudinal throughout radiation combustion ceramic plate, and pre-mixing gas combustion burns in the burner port of described radiant combustion ceramic wafer.
Further improvement project is: described burner port is uniformly distributed on described radiant combustion ceramic wafer, the thickness of described radiant combustion ceramic wafer is 18mm, the aperture of described burner port is 1.37mm, described burner port distribution density is no less than 209 per square inch, and in step C, pre-burning gaseous mixture burns in the burner port of described radiant combustion ceramic wafer.
By adopting above-mentioned improvement opportunity scheme: radiation happening part controls on the ceramic wafer of gas-fired infrared radiator, compared in prior art using metallic plate as radiation source, radiation profiles is more stablized controlled, distributes more even.Without visible flame during pottery gas-fired infrared combustion system burner combustion, there is energy-saving and environmental protection, safe, stable advantage.
Further improvement project is: also comprise combustion-supporting net bottom described combustion section, described combustion-supporting net is positioned under described radiant combustion ceramic wafer, described combustion-supporting net and described radiant combustion ceramic wafer, combustion bin is formed between described heat build-up baffle plate, described combustion-supporting online distribution through hole, in step C, pre-mixing gas combustion burns in the burner port of described radiant combustion ceramic wafer, and at described combustion-supporting net and described radiant combustion ceramic wafer, in the combustion bin formed between described heat build-up baffle plate, reach Thorough combustion further.
By adopting the technical scheme of above-mentioned improvement: the pre-mixing gas combustion completely that makes also not burn is lighted again in the combustion-supporting net metal surface of high temperature, formation hot-air rises, thermal updrafts and input air pressure from top to bottom reach dynamic equilibrium, and residue pre-mixing gas combustion is stranded in Thorough combustion in combustion bin.Thus realize pre-mixing gas combustion and reach and burn completely, make the input speed of incident premixed gas and total combustion speed reach the technique effect of balance.
Further improvement project is: described combustion section outer wall is provided with cooling bath, described cooling bath upper end is provided with air intake vent, described cooling bath lower end is provided with air-vent, described air-vent is towards ground, there is an oblique angle in the vertical direction, the lateral wall that blower fan described in step D is blown into combustion section described in cooling air carries out lasting quenching step and is specially blower fan and blasts cooling blast from described cooling bath air intake vent, and cooling blast is discharged from cooling bath by described air-vent.
Further improvement project is: described air-vent oblique angle is in the vertical direction 60-65 degree.
Adopt technique scheme: the air stream that cooling bath air-vent flows out is ejected on radiation area material with oblique angle, form negative pressure drainage district at radiation area edge, guide the steam on the waste gas after burning and material surface to the sucking-off of negative pressuren zone direction by negative pressure drainage effect; Meanwhile, because adopt the mode of negative pressure drainage to dispel burnt gas and the steam of radiation area, evade traditional blowing drainage way to radiation area to the destruction of radiation area high temperature dry-bulb temperature field, radiation efficiency is maximized.
Accompanying drawing explanation
Fig. 1 is method flow diagram of the present invention;
Fig. 2 is the general assembly front view of radiation generator of the present invention;
Fig. 3 is the cut-open view of final assembly of radiation generator of the present invention;
Fig. 4 is the diffusion part of radiation generator of the present invention and the partial sectional view of combustion section;
Fig. 5 is the cross-sectional schematic in the injection portion of radiation generator of the present invention;
Fig. 6 is the schematic top plan view of the entrance port of radiation generator of the present invention;
Fig. 7 is the top view of the radiant combustion ceramic wafer of radiation generator of the present invention.
The corresponding relation of Reference numeral and parts is as follows:
1. entrance port; 2. induction tunnel; 3. spread storehouse; 4. combustion section; 11. combustion gas inlets; 12. air inflow apertures; 21. mixing unit; 22. diffusion parts; 23. fin; 31. flow distribution plates; 32. tap holes; 41. radiant combustion ceramic wafers; 42. igniters; 43. combustion-supporting nets; 44. combustion bins; 45. heat build-up baffle plates; 5. cooling bath; 51. air intake vents; 52. air-vents; 6. metal shoulder pole;
Detailed description of the invention
Below in conjunction with embodiment, the present invention will be further described.
Embodiment 1 as shown in figs. 1-7:
A kind of reverse gas infrared radiation generator, includes loophole 1 from top to bottom, induction tunnel 2 successively, diffusion storehouse 3, combustion section 4; Wherein induction tunnel 2, diffusion storehouse 3, the outer wall of combustion section 4 continues to brush cooling air and realizes cooling.Entrance port 1 comprises combustion gas inlet 11 and air inflow aperture 12; Induction tunnel 2 outer wall comprises fin 23, and fin 23 is evenly distributed on the outer wall of described induction tunnel 2.The rounded tab projection in fin 23 outer; Be respectively mixing unit 21 and diffusion part 22 inside described induction tunnel 2 from top to bottom, mixing unit 21 is Vertical dimension hollow cylinder, and diffusion part 22 is vertical conical hollow cylinder, has the oblique angle that leans outward of 8 ° between diffusion part 22 and mixing unit 21.The diffusion part 22 of induction tunnel 2 connects diffusion storehouse 3 downwards, diffusion is provided with flow distribution plate 31 in storehouse 3, flow distribution plate 31 is provided with tap hole 32, tap hole 32 longitudinally runs through flow distribution plate 31, tap hole 32 aperture is 1.4mm, and the pitch of holes of described tap hole 32 is 4.8mm, the hemispherical that flow distribution plate 31 intermediate projections edge is flat, described flow distribution plate 31 edge thickness is 1mm, and described flow distribution plate 31 bossing thickness is 9mm.The material of flow distribution plate 31 selects stainless steel 309s; It is radiant combustion ceramic wafer 41 immediately below flow distribution plate 31, radiant combustion ceramic wafer 41 is provided with the burner port of longitudinal throughout radiation combustion ceramic plate, burner port is uniformly distributed on radiant combustion ceramic wafer 41, radiant combustion ceramic wafer 41 thickness is 18mm, burner port aperture is 1.37mm, burner port distribution density 210 per square inch; Comprise combustion-supporting net 43 bottom combustion section 4, described combustion-supporting net 43 distributes through hole.Combustion-supporting net 43 is positioned at 5mm below igniter 42.Lower to being provided with heat build-up baffle plate 45 bottom combustion section 4; Combustion section 4 outer wall is provided with cooling bath 5, and this cooling bath 5 upper end is provided with air intake vent 51, and cooling bath 5 lower end is provided with air-vent 52, and air-vent 52, towards ground, has 65 degree of oblique angles in the vertical direction.Be provided with metal bump bottom cooling bath 5 and extend to described radiant combustion ceramic wafer 41 bottom sides edge, described radiant combustion ceramic wafer 41 is clamped jointly by combustion section 4 topside metal wall and described cooling bath 5 metal bump, radiation generator also comprises metal shoulder pole 6, the two ends of described cooling bath both sides difference connection metal shoulder pole 6, described metal shoulder pole 6 is connected to diffusion storehouse 3 top metal outer wall with bolt.
In practice, canned natural gas via three sections decompression spurts into reverse infrared radiation generator from gas nozzle from combustion gas inlet 11, and the air pressure of gas nozzle end controls to be 3 kPas.Under piston effect, form negative pressuren zone at nozzle towards both sides, drainage entrance port surrounding air pours into the induction tunnel 2 of reverse infrared radiation generator from the air inflow aperture 12 of entrance port.Air stream and natural gas flow compress in induction tunnel mixing unit 21 and form pre-mixing gas combustion, and pre-mixing gas combustion carries out first stage diffusion at the diffusion part 22 of induction tunnel 2; Pre-mixing gas combustion enters diffusion storehouse 3 by the diffusion part 22 of induction tunnel 2, second stage diffusion is carried out in diffusion epimere space, storehouse 3, be deposited on flow distribution plate 31 and form the 3rd section of diffusion by tap hole, evenly enter in the burner port of ceramic burner plate 41 under flow distribution plate, ceramic burner plate 41 lighted by igniter 42, records pre-mixing gas combustion in the 2-3cm place flameless combustion of burner port lower end.The air mixture of not burning completely is lighted again in combustion-supporting net 43 metal surface of high temperature, dynamic equilibrium is reached with thermal updrafts and input air-flow from top to bottom, be stranded in combustion bin 44 and burn completely, the input speed of incident premixed gas and total combustion speed is made to reach balance, and to radiation area emitting infrared radiation.The radiation generator temperature produced because of burning is up, and blast cooling air to induction tunnel, combustion section outer wall cools.The air intake vent 51 of the cooling bath 5 of cooling air spontaneous combustion portion shell enters, and discharges from the air-vent 52 of cooling bath 5, forms negative pressure space at Department of Radiation edge, produces negative pressure drainage effect.The steam ordered about on the burnt gas of radiation area and material moves to negative pressuren zone, reaches the exhaust cycle effect of radiation area.Because realize much slower than prior art of pre-mixing gas combustion speed of input, fuel gas buring is very complete, after testing, does not almost have carbon monoxide and nitrogen oxide in combusted air, reaches the expection technique effect of energy-saving and emission-reduction.
The above, be only a certain item embodiment of the present invention, the present invention is not limited to the restriction of above-described embodiment, all above-described embodiment is done according to technical spirit of the present invention similar amendment, change and replacement, still belong in the scope of technical scheme of the present invention.Protection scope of the present invention is only defined by claims.
Claims (11)
1. use reverse infrared radiation generator to a RADIATION PROCESSING method for heating material drying, described reverse infrared radiation generator includes loophole, induction tunnel, combustion section, and described entrance port comprises combustion gas inlet and air inflow aperture;
It is characterized in that, specifically comprise the steps:
A. combustion gas is spurted into combustion gas inlet with small-power gas nozzle, combustion-supporting air flow produces negative pressure drainage by described combusted gas generant air slide effect, injects described air inflow aperture;
B. the supercharging in described induction tunnel of combustion gas and combustion air is mixed to form pre-mixing gas combustion;
C. pre-mixing gas combustion enters described combustion section, to light burn in described combustion section with igniter;
D. be blown into the lateral wall of cooling air to described induction tunnel and described combustion section to carry out continuing cooling;
E. under combustion section, edge arranges heat build-up baffle plate, flow to the burning of radiation generator combustion section metal shell edge with the pre-mixing gas combustion that described heat build-up baffle is imperfect combustion;
F. material is by the radiation area below combustion section, accepts the radiation that pre-burning mixture combustion produces, reaches heat drying.
2. a RADIATION PROCESSING method as claimed in claim 1, is characterized in that: in steps A, the combustion gas inlet small-power burner nozzle end air pressure of entrance port is 2.8-3 kPa.
3. a RADIATION PROCESSING method as claimed in claim 1, is characterized in that: described in step B, induction tunnel comprises fin, and described fin is distributed in the outer wall of described induction tunnel.
4. a RADIATION PROCESSING method as claimed in claim 3, is characterized in that: described in step B, induction tunnel comprises fin, and the rounded tab projection in described fin outer, described fin is evenly distributed on incident pipe outer wall.
5. a RADIATION PROCESSING method as claimed in claim 1, it is characterized in that: described in step B, injection portion comprises mixing unit and diffusion part from top to bottom, described mixing unit is vertical hollow cylinder, described diffusion part is vertical conical hollow cylinder, in the vertical direction and between mixing unit, have the oblique angle that leans outward of 8 °, spread at described induction tunnel diffusion part after the supercharging in described induction tunnel of combustion gas described in step B and combustion air is mixed to form pre-burning gaseous mixture.
6. a RADIATION PROCESSING method as claimed in claim 1, it is characterized in that: reverse infrared radiation generator also comprises diffusion storehouse, described diffusion bin location is between described induction tunnel and described combustion section, and described diffusion storehouse outer wall is blown into cooling air and continues cooling; Pre-mixing gas combustion described in step c spreads in described diffusion storehouse before entering described combustion section.
7. a RADIATION PROCESSING method as claimed in claim 6, is characterized in that: described diffusion storehouse comprises flow distribution plate, and described flow distribution plate is provided with tap hole, and described tap hole longitudinally runs through described flow distribution plate; Pre-mixing gas combustion described in step c spreads in described diffusion storehouse before entering described combustion section, spreads in the flow distribution plate especially in diffusion storehouse.
8. a RADIATION PROCESSING method as claimed in claim 7, it is characterized in that: described flow distribution plate is the hemispherical that intermediate projections edge is flat, described flow distribution plate edge thickness is 1mm, and described flow distribution plate bossing thickness is 9mm, and described flow distribution plate bottom section diameter is 95mm; Pre-burning gaseous mixture described in step c spreads in described diffusion storehouse before entering described combustion section, spreads in the flow distribution plate especially in diffusion storehouse.
9. the RADIATION PROCESSING method as described in claim 1 or 6, it is characterized in that: in step C, combustion section comprises radiant combustion ceramic wafer, described radiant combustion ceramic wafer is provided with the burner port of longitudinal throughout radiation combustion ceramic plate, and pre-mixing gas combustion burns in the burner port of described radiant combustion ceramic wafer.
10. a RADIATION PROCESSING method as claimed in claim 9, it is characterized in that: bottom described combustion section, also comprise combustion-supporting net, described combustion-supporting net is positioned under described radiant combustion ceramic wafer, described combustion-supporting net and described radiant combustion ceramic wafer, combustion bin is formed between described heat build-up baffle plate, described combustion-supporting online distribution through hole, in step C, pre-mixing gas combustion burns in the burner port of described radiant combustion ceramic wafer, and at described combustion-supporting net and described radiant combustion ceramic wafer, in the combustion bin formed between described heat build-up baffle plate, reach Thorough combustion further.
11. 1 kinds of RADIATION PROCESSING methods as claimed in claim 1, it is characterized in that: described combustion section outer wall is provided with cooling bath, described cooling bath upper end is provided with air intake vent, described cooling bath lower end is provided with air-vent, described air-vent is towards ground, there is an oblique angle in the vertical direction, the lateral wall that blower fan described in step D is blown into combustion section described in cooling air carries out lasting quenching step and is specially blower fan and blasts cooling blast from described cooling bath air intake vent, cooling blast is discharged from cooling bath by described air-vent, described air-vent oblique angle is in the vertical direction 60-65 degree.
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| CN201410104836.6A CN105299645B (en) | 2014-06-09 | 2014-06-09 | Using reverse infrared radiation generator to the method for material radiant-heat drying |
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| CN106122964A (en) * | 2016-08-04 | 2016-11-16 | 成都国光电子仪表有限责任公司 | A kind of fire row blank pipe road, gas field |
| CN108644770A (en) * | 2018-04-12 | 2018-10-12 | 上海蓝炽热能科技有限公司 | Reverse gas infrared radiation system |
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| Publication number | Publication date |
|---|---|
| CN105299645B (en) | 2018-08-14 |
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