CN85103796A - The method and apparatus of recirculated hot air in board drying apparatus - Google Patents
The method and apparatus of recirculated hot air in board drying apparatus Download PDFInfo
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- CN85103796A CN85103796A CN 85103796 CN85103796A CN85103796A CN 85103796 A CN85103796 A CN 85103796A CN 85103796 CN85103796 CN 85103796 CN 85103796 A CN85103796 A CN 85103796A CN 85103796 A CN85103796 A CN 85103796A
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Abstract
The loop direction of hot-air in board drying apparatus, the sheet material in this device for example resembles veneer, is placed on one by one on the fork-shaped feed appliance of a pair of relative installation.These sheet materials are divided into the state that is keeping in the process from level to level and that transport downwards in layer, like this in the process that sheet material transports downwards, the space along continuous straight runs that hot-air blows on the sheet material and between two feed appliances circulates, and sheet material just can have been dried like this.Space between two fork-shaped feed appliances is divided into center-aisle and left and right sides passage, and can control the hot air flowrate that flows through left and right sides passage to such an extent that lack than the hot air flowrate that flows through center-aisle.Like this, just may prevent shrink mark dry and cracked and effectively as ripple.
Description
The present invention relates to a kind of in board drying apparatus the method and apparatus of recirculated hot air.More particularly, relate to the hot air circulate method and apparatus, in this method and apparatus, want dry sheet material, mainly be to resemble the sheet material that still contains a large amount of moisture content, for example: veneer, calcium silicate board with microporous, cement plate, plaster board is deposited on the forked type conveyer of the same relative arrangement of an object door with fiberboard, these sheet materials that will dry are transported to the bottom with the state that separates from device top, that is to say: sheet material has many layers, in the process that sheet material is carried downwards, the air of heating constantly blow and in the centre of above-mentioned a pair of forked type conveyer constantly along continuous straight runs circulate, with oven dry sheet material.
This in board drying apparatus the method and apparatus of recirculated hot air, open in the patent application 587,703 that the inventor proposed on March 8th, 1984.In the method for this earlier application, hot-air only flows along the direction horizontal cyclic of extending to the space in the middle of the forked type conveyer at that.Though done careful consideration for those sheet materials of carrying one by one can both be dried equably, the oven dry problem of a monolithic sheet material itself all do not done special consideration.So, in prior art, to consider the equal heating, drying of each part of a sheet material.
Yet, particularly working as the sheet material that will dry is the situation of veneer, owing in the plank many atomic little spaces are arranged, when hot-air blows on plank, moisture content near the plank edge just volatilizees away by small space in the short period of time, on the contrary, the moisture content at the plank mid portion but is not easy to have volatilized.Therefore, the drying rate of above-mentioned middle part and edge differs widely, and the relative longitudinal center portion in two ends, the plank left and right sides of oven dry assigns to say just too dry.As a result, on the edge at two ends, the plank left and right sides, usually take place dry and cracked and waveform wrinkle phenomenon, make last product quality reduce widely.
In view of the existence of the intrinsic problem of above-mentioned prior art has produced the present invention.
Therefore by suitably controlling the quantity of hot air that blows to plank middle part and edges at two ends position, the left and right sides, just can reduce the dry and cracked of plank edge and waveform wrinkle phenomenon effectively.The method that hot air circulate is provided in the plank drying plant is exactly an one object of the present invention.
In order to achieve the above object, the method of hot air circulate in the board drying apparatus according to the present invention, suffer on that a pair of fork-shaped feed appliance that plot is placed on relative arrangement resembling one of sheet material that thin plate will dry like this, carry from top to bottom then from level to level, hot-air constantly blows and at that space in the middle of fork-shaped feed appliance is flatly circulated in the process of carrying downwards like this, and sheet material just can have been dried.There is the airway that leads to middle and two ends, the left and right sides in space in the middle of the fork-shaped feed appliance, and the quantity of hot air at two ends, the left and right sides can be controlled lessly than the middle part.
Like this, device of the present invention has a pair of fork-shaped feed appliance, this is to be used to carry to the such sheet material that will dry of plank, these sheet materials are vertically to be arranged on the feed appliance relatively one by one, carry from top to bottom, then,, blow and make the space of hot-air in the middle of fork-shaped feed appliance horizontal cyclic constantly air heat with the method for heating with air blast.Control mid portion with rectifier, the air capacity of the hot-air of left and right sides two end portions circulates the space continuous inflow and outflow of hot-air in the middle of the fork-shaped feed appliance.
Considered following explanation and just can understand essence of the present invention, purpose and advantage at an easy rate with reference to accompanying drawing.Wherein all conducts have been selected identical or approximate parts with reference to the figure of characteristic.In the accompanying drawing:
Fig. 1 is the front view of sheet material drying unit of the present invention;
Fig. 2 is the side sectional view of drying unit in the sheet material drying unit among Fig. 1;
Fig. 3 is the section plan of Fig. 1;
Fig. 4 is a partial enlarged drawing of front view, has shown the relation between strip plate that constitutes above-mentioned fork-shaped feed appliance yoke and the plate that will dry.
Fig. 5 is the side sectional view of part shown in Figure 4.
Most preferred embodiment of the present invention is described below with reference to accompanying drawings:
According to most preferred embodiment of the present invention be, the sheet material drying unit is made up of an enclosed hood (1) and a pair of fork-shaped feed appliance (2)～(2), and the size of enclosed hood will make that to fork-shaped feeding follower arranged vertical and sufficient space is arranged between them.Each fork-shaped feed appliance (2) has a ring chain (3), and two row chains are driven by two sprocket wheels (4)-(4) up and down.The ring chain (3) of the correspondence on each fork-shaped feed appliance (2) meets at right angles with an end of many overhanging arms (5) and fixedlys connected.Each all connects at free end overhanging arm (5)-(5) corresponding to forward and backward ring chain (3)-(3), there are a little narrow boards (6) and overhanging arm to meet at right angles fixing at free end, the overhanging arm that the top is mentioned (5)-(5) and little narrow boards (6) are formed a forks arm (8), in order to deposit the sheet material (7) of preparing oven dry.These forks arms fork-shaped feed appliance (2)-(2) that partner, forks arm all arrange good on the position separately and also when forks arm inboard on the fork-shaped feed appliance moves down on another fork-shaped feed appliance the forks arm of inboard correspondence move down with same speed.The length of clamping the forks arm (8) on the sheet material two sides that will dry when considering the pliability of plate will obtain suitably.It should be noted that, distance before each fork-shaped feed appliance between ring chain and the back ring chain is bigger than the distance of ring chain before corresponding between two fork-shaped feed appliances (2)-(2) or back ring chain, so also can dry the big bulk rectangle sheet material of those front and back sizes.
Between the top of two fork-shaped feed appliances (2) and (2) be another feeding part (10) it comprise rocking arm (9)-(9) of a pair of shape as door.Rocking arm (9)-(9) are relative as door, when they are closed, just the sheet material that preparation will be dried at two horizontal support.When rocking arm (9)-(9) when opening, sheet material just flatly drops to the uppermost position of forks arm (8)-(8).
Is furnished with a feeder (11) in enclosed hood (1) outer end in line with feeding part (10)-(10).Those sheet materials of preparing oven dry are transported on the feeding part (10) off and on from feeder (11), rocking arm (9)-(9) on the feeding part (10) are along with moving of forks arm (8)-(8) opened synchronously, and the sheet material of preparing oven dry like this just can drop on forks arm (8)-(8) one by one.
Be furnished with unloader (12) below in the middle of feed appliance (2)-(2), it is outside along horizontal-extending at seal closure (1).
Therefore, inboard forks arm (8)-(8) are gone up when moving to minimum point in (2)-(2) on the fork-shaped feed appliance, it just rotates an angle from horizontal level, and the sheet material (7) that is placed on like this on forks arm (8)-(8) just drops on the unloader (12), transports outside the seal closure then.
It is bay wall (13) that seal closure (1) has a side wall, and seal closure also comprises fan (14) and heater (15), and they are placed between the stifled side wall and bay wall of seal closure (1) completely.Fan (14) and heater (15) are placed on the upper and lower corresponding position as a pair of.The hot blast air blowing direction that should be noted that upper and lower two fans (14)-(14) is just in time opposite, and heater (15)-(15) normally have steam heater as thermal source.
When fan (14) and heater (15) when starting, circulated along the circulation canal shown in Fig. 3 arrow by force by the air of heater (15) heating.Flow to fan (14) from the front or the back of approach seal closure between bay wall (13) and the side wall, then by the passage (16) between the fork-shaped feed appliance.
The top sheet material drying unit of talking about is can be according to the middle part by that quantity of hot air to passage (16) circulation between the fork-shaped feed appliance, or two-end part is controlled respectively.
In other words, according to the present invention, as shown in Figure 3, the many rectifiers that are used to control hot air flowrate are fitly lain in a horizontal plane in the air inlet and the gas outlet of the passage (16) between fork-shaped feed appliance (2)-(2), and those rectifiers (17) are made up of some long metal sheets of vertically laying as shown in the figure; Every metallic plate is the middle part at two ends up and down, and all each personal axle is supporting, and the passage between the fork-shaped feed appliance (16) can allow hot-air to flow through, it is divided into three parts, a part is center-aisle C, and a part is right channel R, and another part is left channel L.Be controlled at semi-open state handle and be controlled at the state of all opening being in the corresponding forward and backward current divider of right channel R and left channel L with the corresponding front and back of center-aisle C current divider.Make in this way by the hot air flowrate of left and right passage and lack than hot air flowrate by center-aisle.Be that some hot air flowrate that resembles left and right passage is the part in the middle part hot air flowrate.
In addition, in the present invention, the little narrow boards (6) of forming the forks arm (8) of fork-shaped feed appliance (2) will be done as Fig. 4 and shown in Figure 5, and bigger width dimensions is arranged in vertical direction.The upper and lower end face of little narrow boards (6) is connected with pipe (18)-(18) are whole, is used for to the sheet material that presses down the preparation oven dry.The same space, hole, Xiangshan is known as closed space (19) between the little narrow boards (6) on the forks arm on fork-shaped feed appliance (2)-(2) and the sheet material of preparing oven dry.The same space (19), this hole, Xiangshan is just as the above-mentioned center-aisle C that mentioned.On the centre position of the forward and backward openend of closed space (19), all settled rectifier.Therefore used with whole the connection as bay wall of forcing pipe (18)-(18) little narrow boards (6)-(6), with it the circulation canal of hot-air is divided into center-aisle C and left and right sides passage L and R.
As mentioned above, according to the present invention, because rectifier (17) is to be used for being controlled at the corresponding centre of import and export of the hot air circulate passage between fork-shaped feed appliance (2)-(2) and the hot air flowrate of and arranged on left and right sides passage, so lack than the hot-air by center-aisle with regard to the hot-air of available control someway by left and right sides passage.So just prevented sheet material left and right sides two end portions baking overdrying.And the rate of drying at two ends, the long slab material left and right sides and the rate of drying of middle part just can be controlled equally.So just can obtain partly not having very dry gratifying high-quality product dry and cracked and ripple contraction trace at sheet edge.
If particularly the forks arm of the right and left (8)-(8) and little narrow boards (6)-(6) dispose more betterly mutually, just can be divided into intermediate space and space, the left and right sides to the space between the sheet material above and below of preparing oven dry better.So just can arrange intermediate distributary device and left and right sides current divider middle and that contrast front, space, the left and right sides is talked about accordingly, just can control the sheet material mid portion of preparation oven dry and the hot air flowrate of left and right sides part more accurately, so, just can obtain desirable high-quality sheet material.
Though the present invention is described optimum device, within the scope of the invention, can produce the device of many modifieds and other kind.
Claims (4)
1, a kind of in the sheet material drying unit method of hot air circulate, in this device, prepare the sheet material of oven dry, as veneer, be put into one by one on the fork-shaped feed appliance of relative arrangement, the state that plank is in layer transports downwards, hot-air blows on plank, in the process of down transporting, the space along continuous straight runs of hot-air between two fork-shaped feed appliances circulates, and the space between two fork-shaped feed appliances is divided into its hot air flowrate of left and right sides passage and controls to such an extent that lack than the hot air flowrate by center-aisle.
2, the hot air circulation unit in board drying apparatus, this device comprise that a pair of fork-shaped feed appliance is used to transport the sheet material of preparing oven dry, resemble veneer, and they are placed in corresponding position in vertical direction.Below sheet material transported to from above, heater is used to produce hot-air, air blast is used to blow heater and produces hot-air and hot-air is constantly circulated for horizontal direction by edge, the space between two fork-shaped feed appliances, and current divider (rectifier) is used to control the flow of hot-air.They are placed in corresponding middle part with the exit of hot air circulate channel entrance and position, the left and right sides between the above-mentioned a pair of fork-shaped feed appliance.
3, according to the hot air circulation unit in the desired board drying apparatus of claim (2), to transport the point of the fork-shaped feed appliance of flitch material and be furnished with many little fillet plates, the residing position of little fillet plate is the bearing of trend along sheet material length.Like this, on the sheet material of preparing oven dry, space down just is divided into mid portion and left and right sides part by the little narrow boards on the fork-shaped feed appliance, and described mid portion has corresponding related with left and right sides part with the current divider of mid portion and the current divider of left and right sides part.
4, according to claim 3, hot air circulation unit in the board drying apparatus, the little narrow boards of requirement is on sheet material, and the bottom is connected with forcing pipe, and this forcing pipe is selected for use and is pushed down the sheet material of preparing oven dry downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85103796 CN85103796A (en) | 1985-05-14 | 1985-05-14 | The method and apparatus of recirculated hot air in board drying apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85103796 CN85103796A (en) | 1985-05-14 | 1985-05-14 | The method and apparatus of recirculated hot air in board drying apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN85103796A true CN85103796A (en) | 1986-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85103796 Pending CN85103796A (en) | 1985-05-14 | 1985-05-14 | The method and apparatus of recirculated hot air in board drying apparatus |
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| CN (1) | CN85103796A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101644529B (en) * | 2008-08-05 | 2011-08-17 | 骆立波 | Induction heating device for end cover |
| CN102954673A (en) * | 2011-08-31 | 2013-03-06 | 烟台龙源电力技术股份有限公司 | Dryer for drying materials by gas |
| CN106643019A (en) * | 2016-10-20 | 2017-05-10 | 精机械（中山）有限公司 | Vertical drying oven |
| CN106679389A (en) * | 2016-12-26 | 2017-05-17 | 牛俊保 | Novel drying device |
| CN108120235A (en) * | 2017-12-15 | 2018-06-05 | 界首市果子林电子商务有限公司 | A kind of plank stage drying case and its drying means |
| CN108772263A (en) * | 2018-06-25 | 2018-11-09 | 安庆柳溪工业设备有限公司 | A kind of high efficiency automotive hub drying unit |
| CN109148140A (en) * | 2018-09-14 | 2019-01-04 | 信丰县包钢新利稀土有限责任公司 | A kind of neodymium iron boron magnetic body auxiliary machining device |
| CN109192492A (en) * | 2018-09-14 | 2019-01-11 | 信丰县包钢新利稀土有限责任公司 | A kind of neodymium iron boron magnetic body auxiliary machining device |
| CN111076525A (en) * | 2019-12-30 | 2020-04-28 | 安徽瑞泰汽车零部件有限责任公司 | Drying box for automobile parts |
| CN114294926A (en) * | 2022-01-10 | 2022-04-08 | 安徽宣城华阳茶叶机械股份有限公司 | Frame type circulating automatic dryer |
| CN115727654A (en) * | 2022-11-28 | 2023-03-03 | 江苏优吉特新材料科技有限公司 | Drying device is used in processing of fire-retardant board of PP |
| CN116576649A (en) * | 2023-07-14 | 2023-08-11 | 廊坊尊朋木业有限公司 | Drying device for wood rotary-cut slices |
-
1985
- 1985-05-14 CN CN 85103796 patent/CN85103796A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101644529B (en) * | 2008-08-05 | 2011-08-17 | 骆立波 | Induction heating device for end cover |
| CN102954673A (en) * | 2011-08-31 | 2013-03-06 | 烟台龙源电力技术股份有限公司 | Dryer for drying materials by gas |
| CN102954673B (en) * | 2011-08-31 | 2015-06-24 | 烟台龙源电力技术股份有限公司 | Dryer for drying materials by gas |
| CN106643019A (en) * | 2016-10-20 | 2017-05-10 | 精机械（中山）有限公司 | Vertical drying oven |
| CN106643019B (en) * | 2016-10-20 | 2019-03-26 | 精一机械（中山）有限公司 | Vertical drying furnace |
| CN106679389A (en) * | 2016-12-26 | 2017-05-17 | 牛俊保 | Novel drying device |
| CN108120235A (en) * | 2017-12-15 | 2018-06-05 | 界首市果子林电子商务有限公司 | A kind of plank stage drying case and its drying means |
| CN108772263A (en) * | 2018-06-25 | 2018-11-09 | 安庆柳溪工业设备有限公司 | A kind of high efficiency automotive hub drying unit |
| CN109192492A (en) * | 2018-09-14 | 2019-01-11 | 信丰县包钢新利稀土有限责任公司 | A kind of neodymium iron boron magnetic body auxiliary machining device |
| CN109148140A (en) * | 2018-09-14 | 2019-01-04 | 信丰县包钢新利稀土有限责任公司 | A kind of neodymium iron boron magnetic body auxiliary machining device |
| CN109192492B (en) * | 2018-09-14 | 2020-12-18 | 信丰县包钢新利稀土有限责任公司 | Neodymium iron boron magnet auxiliary processing device and processing method thereof |
| CN111076525A (en) * | 2019-12-30 | 2020-04-28 | 安徽瑞泰汽车零部件有限责任公司 | Drying box for automobile parts |
| CN114294926A (en) * | 2022-01-10 | 2022-04-08 | 安徽宣城华阳茶叶机械股份有限公司 | Frame type circulating automatic dryer |
| CN115727654A (en) * | 2022-11-28 | 2023-03-03 | 江苏优吉特新材料科技有限公司 | Drying device is used in processing of fire-retardant board of PP |
| CN116576649A (en) * | 2023-07-14 | 2023-08-11 | 廊坊尊朋木业有限公司 | Drying device for wood rotary-cut slices |
| CN116576649B (en) * | 2023-07-14 | 2023-09-19 | 廊坊尊朋木业有限公司 | Drying device for wood rotary-cut slices |
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