CN204138991U - A kind of diffusivity paper humidifying equipment - Google Patents
A kind of diffusivity paper humidifying equipment Download PDFInfo
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- CN204138991U CN204138991U CN201420444620.XU CN201420444620U CN204138991U CN 204138991 U CN204138991 U CN 204138991U CN 201420444620 U CN201420444620 U CN 201420444620U CN 204138991 U CN204138991 U CN 204138991U
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Abstract
The utility model relates to paper making equipment field, particularly relates to a kind of diffusivity paper humidifying equipment.A kind of diffusivity paper humidifying equipment, described humidifying equipment at least comprises the upper moistening tank above the paper being in roll shaft transmission, forms upper humid cabinet between upper moistening tank and paper; The inside of described upper moistening tank is provided with storehouse in the upper storehouse of humidification and multiple heating, humidification communicates between the equal and upper humid cabinet in the lower end in storehouse, humidification is provided with the upper steam nozzle communicated with upper humidification jet chimney in storehouse; In multiple heating, the downside panel combination in storehouse forms upper humid cabinet top board.The moisturization effect of this paper humidifying equipment is good, and the steam-condensation of meeting that is humidified above simultaneously overcoming on the one hand becomes water droplet, drops to problem paper destroying paper, also reduces the use standard for primary steam air pressure on the other hand.
Description
Technical field
The utility model relates to paper making equipment field, particularly relates to a kind of diffusivity paper humidifying equipment.
Background technology
Existing paper machine comprises following structure successively: constant part → head box → wet end → press section → drying section → calender → reel machine.But undertaken mutually restricting between the quality index " smoothness " of the paper obtained by drying, press polish and " air permeability ", " tightness " by drying section, the total quality of paper cannot ensure.Therefore someone imagines and carries out press polish by calender before the drying, but practice in can find that this half moist calendering cannot realize at all, its reason be paper before the drying entirety be all wet, comprise inside and surface, now carry out press polish, paper does not have shaping meeting to stick on felt wrapped roll.
Be directed to the technical problem in above-mentioned paper forming process, applicant is in the patent application that to have submitted a CN103924474A a few days ago, in this first to file, the paper humidifying equipment that applicant provides a kind of top to be humidified, nozzle is arranged on above paper by this paper humidifying equipment, and have employed novel spray regime, namely first jet ejection with initial kinetic energy steam along deflector forward and guide flowing downwards, in conjunction with deflector along sheet transport direction gradually near the feature of paper, paper is made to be humidified evenly, paper surface density after adopting this humidifying equipment to process, printing effect promotes all greatly, solve planarization problem, prevent warpage.But, find in actual production, the paper humidifying equipment of earlier application also exists the restriction in condition, specifically this paper humidifying equipment adopts nozzle mode, for vapor pressure, there is certain use standard, cause carrying out paper humidification when normally spraying lower than the steam in nozzle during this vapor pressure standard value and produce water droplet.
Be directed to the problem of vapor pressure, its solution is the steam that paper mill provides air pressure enough, but present many paper mills are not oneself steam supply, majority is by garden steam supply, and garden side is in order to neutralize the demand of various enterprise, there is the possibility that cannot meet the vapor pressure standard of this humidifying equipment in its vapor pressure; Meanwhile, also there is some paper mill needs to have carried out steam when steam Transportation enters factory decrease temperature and pressure process possibility by the steam of self paper machine.Therefore, the top mentioned in comprehensive the problems referred to above and the first to file steam-condensation of meeting that is humidified becomes water droplet, and drop to problem paper destroying paper, the applicant produces the diffusivity paper humidifying equipment of the application by research, transformation.
Summary of the invention
In order to solve the problem, the purpose of this utility model is to provide a kind of paper humidifying equipment, the moisturization effect of this paper humidifying equipment is good, the steam-condensation of meeting that is humidified above simultaneously overcoming on the one hand becomes water droplet, drop to problem paper destroying paper, also reduce the use standard for primary steam air pressure on the other hand.
In order to realize above-mentioned object, the utility model have employed following technical scheme:
A kind of diffusivity paper humidifying equipment, described humidifying equipment at least comprises the upper moistening tank above the paper being in roll shaft transmission, forms upper humid cabinet between upper moistening tank and paper; The inside of described upper moistening tank is provided with storehouse in the upper storehouse of humidification and multiple heating, humidification communicates between the equal and upper humid cabinet in the lower end in storehouse, humidification is provided with the upper steam nozzle communicated with upper humidification jet chimney in storehouse; In multiple heating, the downside panel combination in storehouse forms upper humid cabinet top board.
As preferably, on described humidification, the lower end in storehouse is provided with humidification upper storehouse outlet passageway, steam separating plate is provided with between upper steam nozzle and humidification upper storehouse outlet passageway, the length of steam separating plate is greater than the channel diameter of humidification upper storehouse outlet passageway, humidification below steam separating plate is provided with humidification upper storehouse drainpipe in storehouse, on humidification, the both sides of storehouse outlet passageway are provided with steam deflector, and the upper end of steam deflector is higher than humidification upper storehouse drainpipe.After the vapo(u)rous that the steam sprayed when upper steam nozzle makes to be humidified above upper storehouse, steam is gradually toward pressing down and walking around steam separating plate, steam deflector upper end being discharged by the upper outlet passageway lower end, storehouse of humidification, and dripping of producing of condensation is blocked by steam separating plate in this process, and drop to by the drainpipe discharge of humidification upper storehouse after bottom the upper storehouse of humidification along its both sides, the condensed water that steam separating plate and steam deflector upper end effectively stop steam to produce is dropped on paper by the upper storehouse outlet passageway that is humidified.
As preferably, the spout of the upper steam nozzle on described humidification in storehouse is directed upwardly, and the spout direction of upper steam nozzle is provided with steam reflecting plate, upper steam reflecting plate be opening towards circular arc.First the steam of upper steam nozzle ejection be injected into the upper steam reflecting plate of circular arc, by upper steam reflecting plate to two lateral reflections, makes distribution of steam even.
As preferably, in described heating, storehouse is steam pressure storehouse, and in heating, storehouse is provided with steam inlet, steam (vapor) outlet and water discharge outlet; In multiple heating, storehouse is followed successively by primary air separating duct heating Shang Cang, the upper storehouse of front casing heating, the upper storehouse of humidification mouth heating, rear box heating Shang Cang and the upper storehouse of rear air channel heating along the throughput direction of paper; On described humidification storehouse outlet passageway be in the upper storehouse of front casing heating and rear box heat between storehouse, on humidification, the steam deflector of storehouse outlet passageway both sides is respectively the side plate in the upper storehouse of front casing heating and the side plate in the upper storehouse of rear box heating, and the upper storehouse of humidification mouth heating is arranged in the outlet passageway of humidification upper storehouse.In heating, storehouse is steam pressure storehouse, and namely by passing into the pressure vessel warehouse of steam, in this heating, storehouse can be subdivided into again primary air separating duct heating Shang Cang, the upper storehouse of front casing heating, the upper storehouse of humidification mouth heating, rear box heating Shang Cang and the upper storehouse of rear air channel heating; During use, pass into 0.2MPA, the Low Temperature Steam of 150 DEG C by steam inlet in the upper storehouse of each heating, Low Temperature Steam heats the upper storehouse of heating, and in heating, each side wall temperatures in storehouse remains on 60 DEG C ~ 70 DEG C, and steam can not become water droplet at its surface condensation.The mouth heating that is particularly humidified above is in the outlet passageway of humidification upper storehouse in storehouse, on humidification, the steam deflector of storehouse outlet passageway both sides heats upper storehouse and rear box by casing before its both sides respectively and heats upper storehouse and heat, and the steam that ensure that in the outlet passageway of humidification upper storehouse can not be met condensation and be formed water droplet.
As preferably, this humidifying equipment also comprises the lower moistening tank arranged in opposite directions with upper moistening tank; The lower lower humid cabinet of formation between moistening tank and paper, the inside of described lower moistening tank is provided with the lower storehouse of humidification; The lower steam nozzle being provided with lower steam reflecting plate, the lower storehouse drainpipe of humidification under described humidification in storehouse and communicating with lower humidification jet chimney, the spout direction of lower steam nozzle down, lower steam reflecting plate is opening up circular arc, the spout direction of lower steam nozzle is towards the circular arc opening of lower steam reflecting plate, and humidification lower storehouse drainpipe is in the bottom in the lower storehouse of humidification; Under described humidification, the upper end in storehouse is provided with storehouse outlet passageway under the humidification communicated between lower humid cabinet.When reality uses, due to the restriction of operation before paper machine, processing for paper mainly concentrates on the front of paper, therefore mainly use moistening tank in this device fabrication, can put into production separately by above moistening tank, but require to be that paper machine copy paper speed is slower, be less than 200 ms/min, and the wettability power of paper own is comparatively strong, paper is not high for the smoothness requirements of reverse side, as the facing paper outside furniture.And if paper machine copy paper speed, be greater than 200 ms/min or paper kind and require that the large or paper of amount of humidification is when preceding working procedure applying glue is not easily humidified or require to control paper smoothness for two sides difference is little, Substance is high paper kind, two case is needed to produce, namely upper and lower two tanks is closed is humidified simultaneously, now steam can cover full size completely, and moisturization effect is very good.And it is to be noted, the maximum difference of lower moistening tank and upper moistening tank is, the trend of steam can carry out restriction as floated or sinking by structure, condensed water then only can toward dirty, therefore descend moistening tank do not exist the phenomenon that water droplet comes off on paper, do not need steam separating plate and steam deflector are installed; But the deficiency that lower moistening tank exists is that the gas flow of floating steam is uncontrollable, cause the moisturization effect of below humidification poor, be humidified uneven, moistening tank therefore can not be descended to be humidified separately.
As preferably, be also provided with storehouse under multiple heating in described lower moistening tank, under multiple heating, the upper panel combination in storehouse forms lower humid cabinet base plate; Under described heating, storehouse is steam pressure storehouse, and the lower storehouse of heating is provided with steam inlet, steam (vapor) outlet and water discharge outlet; Under multiple heating, storehouse is followed successively by primary air separating duct heating Xia Cang, the lower storehouse of front casing heating, the lower storehouse of humidification mouth heating, rear box heating Xia Cang and the lower storehouse of rear air channel heating along the throughput direction of paper; Under described humidification, storehouse outlet passageway is in the lower storehouse of front casing heating and rear box heat between lower storehouse, and the lower storehouse of humidification mouth heating to be arranged under humidification in the outlet passageway of storehouse.Although, there is not the phenomenon that water droplet comes off on paper in lower moistening tank, if but the temperature of the lower humidification steam that can affect in lower humid cabinet of lower moistening tank spin manifold temperature, draw in practice humidification steam Optimal Temperature be 120 ~ 140 DEG C, moisturization effect lower than this temperature paper is just not good, and therefore under lower moistening tank arranges multiple heating, storehouse is also necessary.
As preferably, on described humidification, storehouse and the lower storehouse of humidification are all along the vertical direction regular array of the conveying with paper, on humidification storehouse be humidified under the width in storehouse be 150mm.On each humidification, storehouse and the lower storehouse of humidification all have steam nozzle and are humidified, namely said structure arranges upper and lower two steam nozzles every 150mm, carries out a spray humidification to paper, and unnecessary steam is then along upper humid cabinet and the flowing of lower humid cabinet, get rid of other gases in humid cabinet, improve moisturization effect.
As preferably, described upper humid cabinet and the combination of lower humid cabinet form humid cabinet, and the paper of roll shaft transmission is in the middle of humid cabinet above-below direction.
As preferably, described upper moistening tank is provided with air channel after the top box primary air separating duct and top box communicated with humid cabinet, steam channel between top box primary air separating duct and humid cabinet is in primary air separating duct and heats Shang Cang and front casing and heat between upper storehouse, and the steam channel after top box between air channel and humid cabinet is between rear box heating Shang Cang and the upper storehouse of rear air channel heating; Lower moistening tank is provided with air channel after the nowel primary air separating duct and nowel communicated with humid cabinet, steam channel between nowel primary air separating duct and humid cabinet is in primary air separating duct and heats Xia Cang and front casing and heat between lower storehouse, and the steam channel after nowel between air channel and humid cabinet is between rear box heating Xia Cang and the lower storehouse of rear air channel heating.Primary air separating duct and rear air channel are to be discharged by the steam overflowing humid cabinet, but, when passing into primary air separating duct and rear air channel, be easy to produce wind passage mouth steam-condensation Cheng Shui, water droplet refluxes the phenomenon dropped onto on paper, therefore need the steam channel leading to primary air separating duct and rear air channel to be arranged between two heating cabinets, prevent water droplet from being formed.
The utility model adopts technique scheme, this paper humidifying equipment is in order to combine with papermaking preorder technique, have employed the humidification mode of top humidification, namely comprise one and be in upper moistening tank above paper, arrange the upper storehouse of humidification and the upper storehouse of heating in upper moistening tank, humidification passes into steam by spout in storehouse, and steam is preferably 0.05 ~ 0.08MPa, 150 DEG C of saturated vapors, vapor pressure is lower, is easy to meet; Steam passes into upper humid cabinet by the lower end in the upper storehouse that is humidified and fills full whole upper humid cabinet, and paper all carries out heat exchange with the steam in upper humid cabinet by equipment paper feed end to the whole process of paper delivery end, reaches the effect of fully humidification; And simultaneously, in multiple heating in upper moistening tank, the downside panel combination in storehouse forms upper humid cabinet top board, upper humid cabinet top board carries out preheating by the upper storehouse of heating, ensure that temperature is between 60 ~ 70 DEG C, humidification steam in upper humid cabinet can not become water droplet at its surface condensation, overcomes steam-condensation and becomes water droplet to be shed to technical problem paper destroying paper product quality.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation one of upper moistening tank.
Fig. 3 is the structural representation two of upper moistening tank.
Fig. 4 is the combining structure schematic diagram of upper moistening tank and lower moistening tank.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in further detail.
A kind of diffusivity paper humidifying equipment as shown in figures 1-4, the upper moistening tank 2 including frame 1 and be arranged in frame 1 and lower moistening tank 3, specifically go up moistening tank 2 to be fixed in frame 1 by hanger 11, and lower moistening tank 3 is arranged in frame 1 by lift cylinder 12 and (can moves up and down adjustment).The direction of upper moistening tank 2 and lower moistening tank 3 is arranged in opposite directions, and the paper 8 of roll shaft transmission to be between moistening tank 2 and lower moistening tank 3 and to be close at the bottom of the case of moistening tank 2.
Form upper humid cabinet 4 between upper moistening tank 2 and paper 8, the inside of upper moistening tank 2 is provided with storehouse 21 and 5 upper storehouses of heating on multiple humidification.On multiple humidification, storehouse 21 is in-line regular array along the vertical direction of the conveying with paper 8, and namely arranged in a straight line on the width of upper moistening tank 2, on each humidification, storehouse 21 width is 150mm; Each humidification communicates between the equal and upper humid cabinet 4 in the lower end in storehouse 21, specifically the lower end in the upper storehouse 21 of humidification is provided with humidification upper storehouse outlet passageway 22, on this humidification, the bottom of storehouse outlet passageway 22 communicates with upper humid cabinet 4, and humidification on storehouse outlet passageway 22 bottom on be also provided with steam orifice plate 23, upper steam orifice plate 23 is conducive to distribution of steam even, improves moisturization effect.Each humidification is provided with steam nozzle 24 in storehouse 21, and upper steam nozzle 24 communicates with upper humidification jet chimney 25, and pipeline before each upper steam nozzle 24 is also provided with steam control valve 26.The top in storehouse 21 is gone up in the spout direction of upper steam nozzle 24 towards humidification, the spout direction of upper steam nozzle 24 is provided with steam reflecting plate 27, upper steam reflecting plate 27 is in downward opening circular arc, upper steam nozzle 24 is towards the circular arc opening of upper steam reflecting plate 27, and it is even that upper steam reflecting plate 27 is conducive to distribution of steam.Steam separating plate 28 is provided with between upper steam reflecting plate 27 and humidification upper storehouse outlet passageway 22, steam separating plate 28 is in downward opening circular arc, on humidification, the upper end of storehouse outlet passageway 22 is towards the circular arc opening of steam separating plate 28, the length of steam separating plate 28 is greater than the channel diameter of humidification upper storehouse outlet passageway 22, and namely steam separating plate 28 entirety hides the upper end open of humidification upper storehouse outlet passageway 22; Humidification below steam separating plate 28 is provided with humidification upper storehouse drainpipe 29 in storehouse 21, by the steam separating plate 28 of circular arc be conducive to condensed water to drop to along its surface flowing and from its both sides after bottom the storehouse 21 of humidification by humidification above storehouse drainpipe 29 discharge.On humidification, the both sides of storehouse outlet passageway 22 are provided with steam deflector 20, the upper end of steam deflector 20 exceeds the height of humidification upper storehouse drainpipe 29, and the upper end of steam deflector 20 stops the condensed water bottom the upper storehouse 21 of humidification to be dropped on paper 8 by the upper storehouse outlet passageway 22 that is humidified.
5 upper storehouses of heating are steam pressure storehouse, it are equipped with steam inlet, steam (vapor) outlet and water discharge outlet.The downside panel combination in 5 upper storehouses of heating forms the upper upper storehouse of 41,5, humid cabinet top board heating and is specifically divided into primary air separating duct to heat upper storehouse 2a, the upper storehouse 2b of front casing heating, the upper storehouse 2c of humidification mouth heating, the upper storehouse 2d of rear box heating and the upper storehouse 2e of rear air channel heating successively along the throughput direction of paper 8.On humidification, storehouse outlet passageway 22 is in the upper storehouse 2b of front casing heating and rear box heat between upper storehouse 2d, and humidification on, the steam deflector 20 of storehouse outlet passageway 22 both sides is respectively the heating of front casing above the side plate of storehouse 2b and rear box heat the side plate of above storehouse 2d; The upper storehouse 2c of humidification mouth heating is arranged in humidification upper storehouse outlet passageway 22.
During use, on the one hand, by treated humidification steam 0.05 ~ 0.08Mpa, the low temperature and low pressure steam of 150 DEG C passes into humidification jet chimney 25, and after opening steam control valve 26, steam sprays in the upper storehouse 21 of humidification by upper steam nozzle 24; First the steam that upper steam nozzle 24 sprays be injected into steam reflecting plate 27, by upper steam reflecting plate 27 to two lateral reflections, makes distribution of steam even; After the vapo(u)rous above the upper storehouse 21 of humidification, steam gradually toward press down and walk around steam separating plate 28, steam deflector 20 upper end and discharged by upper outlet passageway 22 lower end, storehouse of humidification, humid cabinet 4 is interior and have certain initial kinetic energy in inflows; A steam part in inflow in humid cabinet 4 directly contacts with paper 8 and is absorbed, the front portion of humid cabinet 4 and rear portion in the steam flow of another part, and is extruded by other gases unnecessary in upper humid cabinet 4.On the other hand, pass into 0.2MPA, the Low Temperature Steam of 150 DEG C by steam inlet in the upper storehouse of each heating, Low Temperature Steam heats the upper storehouse of heating, and in heating, the side wall temperatures in storehouse remains on 60 DEG C ~ 70 DEG C, and steam can not become water droplet at its surface condensation.The upper storehouse 2c of mouth heating that is particularly humidified is in humidification upper storehouse outlet passageway 22, on humidification, the steam deflector 20 of storehouse outlet passageway 22 both sides heats upper storehouse 2b and rear box by casing before its both sides respectively and heats upper storehouse 2d and heat, and the steam that ensure that in humidification upper storehouse outlet passageway 22 can not be met condensation and be formed water droplet.Therefore, equipment needs certain preheating time when opening, after preheating completes, the temperature of upper humid cabinet top board 41 remains on 60 DEG C ~ 70 DEG C, and the steam in upper humid cabinet 4 remains on 120 ~ 140 DEG C, steam can not become water droplet at upper humid cabinet top board 41 surface condensation, passes into paper 8, and paper 8 is just contacted with humidification steam by the import department of upper humid cabinet 4, add humidification time, overall moisturization effect is good.
Lower humid cabinet 5 is formed between lower moistening tank 3 and paper 8, upper humid cabinet 4 and the combination of lower humid cabinet 5 form humid cabinet, the inside of lower moistening tank 3 is provided with storehouse 31 and 5 lower storehouses of heating under multiple humidification, under multiple humidification, storehouse 31 is in-line regular array along the vertical direction of the conveying with paper 8, namely arranged in a straight line on the width of lower moistening tank 3, under each humidification, storehouse 31 width is 150mm; Communicate between the equal and lower humid cabinet 5 in the upper end in storehouse 31 under multiple humidification, specifically the upper end in the lower storehouse 31 of humidification is provided with humidification lower storehouse outlet passageway 32, the upper end of humidification lower storehouse outlet passageway 32 is provided with lower steam orifice plate 33, and the lower storehouse 31 of humidification is communicated with lower humid cabinet 5 by humidification lower storehouse outlet passageway 32; The lower steam nozzle 34 communicated with lower humidification jet chimney 35 is provided with in storehouse 31 under each humidification; The spout direction of lower steam nozzle 34 down, the lower storehouse 31 of humidification is provided with lower steam reflecting plate 36, lower steam reflecting plate 36 is in opening up circular arc, the spout direction of lower steam nozzle 34 is towards the circular arc opening of lower steam reflecting plate 36, and the bottom in the lower storehouse 31 of humidification is also provided with humidification lower storehouse drainpipe 37.
5 lower storehouses of heating are steam pressure storehouse, and the lower storehouse of heating is provided with steam inlet, steam (vapor) outlet and water discharge outlet; The upper panel combination in 5 lower storehouses of heating forms the lower lower storehouse of humid cabinet base plate 42,5 heating and is followed successively by the lower storehouse 3a of primary air separating duct heating, the lower storehouse 3b of front casing heating, the lower storehouse 3c of humidification mouth heating, the lower storehouse 3d of rear box heating and the lower storehouse 3e of rear air channel heating along the throughput direction of paper 8.Humidification lower storehouse outlet passageway 32 is in the lower storehouse 3b of front casing heating and rear box heats between lower storehouse 3d, and the lower storehouse 3c of humidification mouth heating is arranged in humidification lower storehouse outlet passageway 32.
Upper moistening tank is provided with air channel 62 after the top box primary air separating duct 61 and top box communicated with humid cabinet, steam channel between top box primary air separating duct 61 and humid cabinet is in primary air separating duct and heats upper storehouse 2a and front casing heat between upper storehouse 2b, and the steam channel after top box between air channel 62 and humid cabinet is in rear box and heat and go up storehouse 2d and rear air channel and heat and go up between the 2e of storehouse; Lower moistening tank is provided with air channel 64 after the nowel primary air separating duct 63 and nowel communicated with humid cabinet, steam channel between nowel primary air separating duct 63 and humid cabinet is in primary air separating duct and heats lower storehouse 3a and front casing heat between lower storehouse 3b, and the steam channel after nowel between air channel 64 and humid cabinet is in rear box and heat and descend storehouse 3d and rear air channel to heat between lower storehouse 3e.Primary air separating duct and rear air channel are to be discharged by steam unnecessary in humid cabinet, but, when passing into primary air separating duct and rear air channel, be easy to produce wind passage mouth steam-condensation Cheng Shui, water droplet refluxes the phenomenon dropped onto on paper, therefore need the steam channel leading to primary air separating duct and rear air channel to be arranged between two heating cabinets, prevent water droplet from being formed.
When reality uses, due to the restriction of operation before paper machine, processing for paper 8 mainly concentrates on the front of paper 8, therefore mainly use moistening tank 2 in this device fabrication, can put into production separately by above moistening tank 2, but require to be that paper machine copy paper speed is slower, be less than 200 ms/min, and the wettability power of paper 8 own is comparatively strong, paper 8 is not high for the smoothness requirements of reverse side, as the facing paper outside furniture.And if paper machine copy paper speed, be greater than 200 ms/min or paper kind and require that the large or paper 8 of amount of humidification is when preceding working procedure applying glue is not easily humidified or require to control paper 8 smoothness for two sides difference is little, paper 8 is quantitatively high paper kind, two case is needed to produce, now need by lift cylinder 12 lower moistening tank 3 to be promoted to offset with upper moistening tank 2, upper and lower two casees closing seams, the paper 8 of roll shaft transmission is in the middle of humid cabinet above-below direction; Now steam can cover full size 8 completely, and moisturization effect is very good.And it is to be noted, the structure of lower moistening tank 3 and upper moistening tank 2, principle and working method are roughly the same, its maximum difference is, the trend of steam can carry out restriction as floated or sinking by structure, condensed water then only can toward dirty, therefore descend moistening tank 3 do not exist the phenomenon that water droplet comes off on paper 8, do not need steam separating plate 28 and steam deflector 20 are installed; But the deficiency that lower moistening tank 3 exists is that the gas flow of the floating steam mentioned in background technology is uncontrollable, moisturization effect is poor, it is uneven to be humidified, and moistening tank 3 therefore can not be descended to be humidified separately.But, although there is not the phenomenon that water droplet comes off on paper 8 in lower moistening tank 3, if but the temperature of the lower humidification steam that can affect in lower humid cabinet 5 of lower moistening tank 3 spin manifold temperature, draw in practice humidification steam Optimal Temperature be 120 ~ 140 DEG C, moisturization effect lower than this temperature paper 8 is just not good, and therefore under lower moistening tank 3 arranges multiple heating, storehouse carries out heating for casing and lower humid cabinet base plate 42 is also necessary.
Its humidification mode of CN103924474A of applying for before above-mentioned diffusivity paper humidifying equipment and the application creates very large change, with the metaphor of image be first to file be " air blowing " humidification, be there is by spout ejection the steam of certain initial velocity; And the application's is " breathing out " humidification, the gas sprayed by spout is full of full whole moistening tank, then carries out paper humidification; The paper 8 surface compact degree produced by diffusivity paper humidifying equipment and printing effect are all increased substantially, and solve planarization problem, prevent warpage.Its concrete step is as follows:
1. 0.6 ~ 0.8MPa paper mill used, 200 ~ 230 DEG C of steam carry out decrease temperature and pressure to 0.2MPa, 150 DEG C, and pass in one point of gas tank;
2. the steam in point gas tank is passed into respectively in the upper storehouse of heating and the lower storehouse of heating, by the upper storehouse of heating and the lower storehouse of heating, upper moistening tank 2 and lower moistening tank 3 are heated, particularly go up humid cabinet top board 41 and lower humid cabinet base plate 42 needs to maintain the temperature at 60 ~ 70 DEG C;
3. the steam in point gas tank reduced to 0.05 ~ 0.08Mpa through pressure control device, pass into the upper storehouse 21 of humidification and the lower storehouse 31 of humidification after 150 DEG C;
4. 0.05 ~ 0.08Mpa, the steam of 150 DEG C on humidification under storehouse 21 or humidification in storehouse 31 again micro-pressure steam (and getting rid of aqueous water) blow to humid cabinet by the hole of orifice plate, pass into paper, in humid cabinet, realize humidification;
5. discharge in air channel after air channel, nowel primary air separating duct and top box after the unnecessary gas that has been humidified passes into top box primary air separating duct, top box by the rear and front end of humid cabinet.
Claims (9)
1. a diffusivity paper humidifying equipment, is characterized in that: described humidifying equipment at least comprises the upper moistening tank above the paper being in roll shaft transmission, forms upper humid cabinet between upper moistening tank and paper; The inside of described upper moistening tank is provided with storehouse in the upper storehouse of humidification and multiple heating, humidification communicates between the equal and upper humid cabinet in the lower end in storehouse, humidification is provided with the upper steam nozzle communicated with upper humidification jet chimney in storehouse; In multiple heating, the downside panel combination in storehouse forms upper humid cabinet top board.
2. a kind of diffusivity paper humidifying equipment according to claim 1, it is characterized in that: on described humidification, the lower end in storehouse is provided with humidification upper storehouse outlet passageway, steam separating plate is provided with between upper steam nozzle and humidification upper storehouse outlet passageway, the length of steam separating plate is greater than the channel diameter of humidification upper storehouse outlet passageway, humidification below steam separating plate is provided with humidification upper storehouse drainpipe in storehouse, on humidification, the both sides of storehouse outlet passageway are provided with steam deflector, and the upper end of steam deflector is higher than humidification upper storehouse drainpipe.
3. a kind of diffusivity paper humidifying equipment according to claim 2, it is characterized in that: the spout of the upper steam nozzle on described humidification in storehouse is directed upwardly, the spout direction of upper steam nozzle is provided with steam reflecting plate, upper steam reflecting plate be opening towards circular arc.
4. a kind of diffusivity paper humidifying equipment according to claim 2, it is characterized in that: in described heating, storehouse is steam pressure storehouse, in heating, storehouse is provided with steam inlet, steam (vapor) outlet and water discharge outlet; In multiple heating, storehouse is followed successively by primary air separating duct heating Shang Cang, the upper storehouse of front casing heating, the upper storehouse of humidification mouth heating, rear box heating Shang Cang and the upper storehouse of rear air channel heating along the throughput direction of paper; On described humidification storehouse outlet passageway be in the upper storehouse of front casing heating and rear box heat between storehouse, on humidification, the steam deflector of storehouse outlet passageway both sides is respectively the side plate in the upper storehouse of front casing heating and the side plate in the upper storehouse of rear box heating, and the upper storehouse of humidification mouth heating is arranged in the outlet passageway of humidification upper storehouse.
5., according to a kind of diffusivity paper humidifying equipment in claim 1 ~ 4 described in any one, it is characterized in that: this humidifying equipment also comprises the lower moistening tank arranged in opposite directions with upper moistening tank; The lower lower humid cabinet of formation between moistening tank and paper, the inside of described lower moistening tank is provided with the lower storehouse of humidification; The lower steam nozzle being provided with lower steam reflecting plate, the lower storehouse drainpipe of humidification under described humidification in storehouse and communicating with lower humidification jet chimney, the spout direction of lower steam nozzle down, lower steam reflecting plate is opening up circular arc, the spout direction of lower steam nozzle is towards the circular arc opening of lower steam reflecting plate, and humidification lower storehouse drainpipe is in the bottom in the lower storehouse of humidification; Under described humidification, the upper end in storehouse is provided with storehouse outlet passageway under the humidification communicated between lower humid cabinet.
6. a kind of diffusivity paper humidifying equipment according to claim 5, is characterized in that: be also provided with storehouse under multiple heating in described lower moistening tank, and under multiple heating, the upper panel combination in storehouse forms lower humid cabinet base plate; Under described heating, storehouse is steam pressure storehouse, and the lower storehouse of heating is provided with steam inlet, steam (vapor) outlet and water discharge outlet; Under multiple heating, storehouse is followed successively by primary air separating duct heating Xia Cang, the lower storehouse of front casing heating, the lower storehouse of humidification mouth heating, rear box heating Xia Cang and the lower storehouse of rear air channel heating along the throughput direction of paper; Under described humidification, storehouse outlet passageway is in the lower storehouse of front casing heating and rear box heat between lower storehouse, and the lower storehouse of humidification mouth heating to be arranged under humidification in the outlet passageway of storehouse.
7. a kind of diffusivity paper humidifying equipment according to claim 5, is characterized in that: on described humidification, storehouse and the lower storehouse of humidification are all along the vertical direction regular array of the conveying with paper, and on humidification, the width in storehouse and the lower storehouse of humidification is 150mm.
8. a kind of diffusivity paper humidifying equipment according to claim 5, is characterized in that: described upper humid cabinet and the combination of lower humid cabinet form humid cabinet, and the paper of roll shaft transmission is in the middle of humid cabinet above-below direction.
9. a kind of diffusivity paper humidifying equipment according to claim 8, it is characterized in that: described upper moistening tank is provided with air channel after the top box primary air separating duct and top box communicated with humid cabinet, steam channel between top box primary air separating duct and humid cabinet is in primary air separating duct and heats Shang Cang and front casing and heat between upper storehouse, and the steam channel after top box between air channel and humid cabinet is between rear box heating Shang Cang and the upper storehouse of rear air channel heating; Lower moistening tank is provided with air channel after the nowel primary air separating duct and nowel communicated with humid cabinet, steam channel between nowel primary air separating duct and humid cabinet is in primary air separating duct and heats Xia Cang and front casing and heat between lower storehouse, and the steam channel after nowel between air channel and humid cabinet is between rear box heating Xia Cang and the lower storehouse of rear air channel heating.
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| CN201420444620.XU CN204138991U (en) | 2014-08-07 | 2014-08-07 | A kind of diffusivity paper humidifying equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153238A (en) * | 2014-08-07 | 2014-11-19 | 浙江汉普新材料技术有限公司 | Diffusible paper moistening equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153238A (en) * | 2014-08-07 | 2014-11-19 | 浙江汉普新材料技术有限公司 | Diffusible paper moistening equipment |
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