CN208362809U

CN208362809U - A kind of kraft inner paper and the kraft inner paper remanufacture drying unit

Info

Publication number: CN208362809U
Application number: CN201820935874.XU
Authority: CN
Inventors: 赵耀强
Original assignee: Jiangmen Mingxing Paper Industry Co Ltd
Current assignee: Jiangmen Mingxing Paper Industry Co Ltd
Priority date: 2018-06-18
Filing date: 2018-06-18
Publication date: 2019-01-11
Anticipated expiration: 2028-06-18

Abstract

The utility model discloses a kind of kraft inner paper, includes surface layer, sandwich layer, the first glue-line, bottom and the second glue-line；Surface layer bottom is carried out pressurization sizing and forms the first glue-line, connect at the top of first glue-line and sandwich layer by double roller sizing applicator；By double roller sizing applicator at the top of bottom, carries out pressurization sizing and form the second glue-line, second glue-line is connect with sandwich layer bottom；The kraft inner paper reaches that folding strength is higher, bursting strength is higher, the higher effect of paper cleanliness.A kind of kraft inner paper remanufacture drying unit is also disclosed in the utility model, includes recycled Kraft paper jam, drying box, pillar, bracket, exhaust fan, Air Filter, heat pump, installs case, the first electronic reel and first bracing wire etc.；Multiple pillars are fixed in drying box bottom, and sliding rail is fixed in bottom in drying box；The kraft inner paper remanufacture drying unit achievees the effect that with dust-proof processing function, good dustproof effect, safe operation.

Description

A kind of kraft inner paper and the kraft inner paper remanufacture drying unit

Technical field

The utility model belongs to kraft inner paper remanufacture field more particularly to a kind of kraft inner paper and the kraft inner paper returns Drying unit is used in midwifery production.

Background technique

Kraft inner paper is more more tough and tensile than general boxboard, sturdy, there is high compression strength, resistance to Punctured Strength and folding Degree, has the characteristics that humidity resistance is good, presentation quality is good, mainly for the manufacture of foreign trade packing carton and domestic high-grade goods packaging Carton；It is recycled, is manufactured into kraft inner paper, referred to as recycled Kraft paper jam by reclaimed waste paper.

Kraft inner paper folding strength is lower currently on the market, bursting strength is lower, paper cleanliness is lower, is not able to satisfy to top grade The packaging of product needs, and kraft inner paper remanufacture processing step is 1) sorting；2) sub-material；3) slurrying；4) it manufactures paper with pulp；5) it takes off Water；6) front baking is dry；7) it is glued；8) dried after it is dry, and front baking is dry, the rear drying steps that dry all directly are carried out with drying oven Drying and processing, and if not carrying out dust-proof processing to dryer inside, so that kraft inner paper becomes easily infected by dust, to cause Kraft inner paper is unholiness with flaw, paper, even if some drying ovens have a dust-proof processing function, but its dust-proof effect is also not to the utmost People's will, it is ineffective, and need that manually directly kraft inner paper is put into drying oven, people is easy to be burned, therefore needs to grind It sends out that folding strength is higher, bursting strength is higher a kind of, the higher kraft inner paper of paper cleanliness and there is dust-proof processing function, dust-proof effect Fruit is good, safe operation kraft inner paper remanufacture drying unit.

Utility model content

Existing kraft inner paper folding strength is lower, bursting strength is lower, paper cleanliness is lower in order to overcome for the utility model, and Dust-proof effect is bad in kraft inner paper drying course, so that kraft inner paper becomes easily infected by dust, there are also lacking for operation more danger Point, that the technical problem to be solved by the present invention is to provide a kind of folding strengths is higher, bursting strength is higher, paper cleanliness is higher Kraft inner paper and kraft inner paper remanufacture drying unit with dust-proof processing function, good dustproof effect, safe operation.

The utility model is reached by technological means in detail below:

A kind of kraft inner paper includes surface layer, sandwich layer, the first glue-line, bottom and the second glue-line；Surface layer bottom passes through double roller Sizing applicator carries out pressurization sizing and forms the first glue-line, connect at the top of first glue-line and sandwich layer；It is applied at the top of bottom by double roller Glue machine carries out pressurization sizing and forms the second glue-line, and second glue-line is connect with sandwich layer bottom；The surface layer is waste paper screening Wood pulp cellulose is made, and the sandwich layer is made of the wood pulp cellulose that waste paper screens, and the bottom is made of the staple fiber that waste paper screens, First glue-line, the second glue-line are starch fluid glue application layer.

A kind of kraft inner paper remanufacture drying unit, includes recycled Kraft paper jam, drying box, pillar, branch Frame, exhaust fan, Air Filter, heat pump, installs case, the first electronic reel, the first bracing wire, the first sliding block, sliding rail, the second sliding block, First groove body, the first bolt, the first fixed block, web plate, the second groove body, the second bolt, the second fixed block, L shape baffle, second are drawn Line, the second electronic reel and support rod；Multiple pillars are fixed in drying box bottom, and sliding rail is fixed in bottom in drying box, branch Strut is fixed in the one end of sliding rail bottom far from drying box, and the first groove body is slidably connected by the first sliding block with sliding rail, the second slot Body is slidably connected by the second sliding block with sliding rail, and the first groove body is matched with the second groove body, and the first spiral shell is equipped at the top of the first groove body Pit, the first bolt are bolted in the first threaded hole, and the first fixed block is placed in the first groove body, and the is equipped at the top of the first fixed block One jack, the first stud base and the inserting of the first jack cooperate, and the second threaded hole are equipped at the top of the second groove body, the second bolt is spirally connected In the second threaded hole, the second fixed block is placed in the second groove body, and the second jack, the second bolt bottom are equipped at the top of the second fixed block Portion and the inserting of the second jack cooperate, and drying box side is equipped with the entrance entered and left for the first groove body, the second groove body, and L shape baffle is solid It is connected to the side of the second groove body, L shape baffle is matched with entrance, and the second electronic reel is fixed in extreme；Second draws Line one end is wire-wrapped in the second electronic reel, and the other end is fixed in L shape baffle side；Installs case is fixed in drying box far from discrepancy The side of mouth, the first electronic reel are fixed in bottom in drying box；First bracing wire one end is fixed in the first groove body side, another End sequentially passes through drying box, installs case and the first electronic reel solderless wrapped connection；Drying box side is equipped with first through hole, first through hole position Above installs case, Air Filter is fixed in first through hole, and heat pump is fixed in drying box side, heat pump output end and first through hole Connection, exhaust fan are fixed at the top of drying box by bracket, are connected in exhaust fan and drying box.

It further, further include having pulling block, iron block, magnet, L shape connecting rod and brush；Installs case side is equipped with to be connected for L shape The third through-hole that extension bar enters and leaves, magnet are fixed in bottom in third through-hole, and iron block is fixed in L shape connecting rod bottom, magnet and iron The connection of block magnetism, pulling block are fixed in end of the L shape connecting rod far from installs case, and brush is fixed in L shape connecting rod one end, brush bottom Portion and the first bracing wire connect.

It further, further include having T shape connecting plate；The second through-hole, first through hole and the second through-hole are equipped at the top of installs case Connection, T shape connecting plate is affixed with Air Filter through the second through-hole, and Air Filter is placed in first through hole.

It further, further include having temperature indicator；Temperature indicator is fixed at the top of drying box, and in temperature indicator Sensing element be fixed in drying box inner top.

Further, installs case side is additionally provided with heat release hole.

Further, drying box side is additionally provided with groove, and L shape baffle and groove inserting cooperate.

Further, the first bolt, the second bolt are set as wing bolt.

Compared with prior art, the utility model has the following beneficial effects:

1, kraft inner paper described in the utility model is with folding strength is higher, bursting strength is higher, the higher effect of paper cleanliness Fruit.

2, drying unit described in the utility model is pumped the air that dust is had in drying box by exhaust fan, by anti- Dirt net blocks dust so that the hot wind of heat pump output be it is clean, by L shape baffle close entrance, to reach dust-proof The excellent effect of effect.

3, drying unit described in the utility model by the first electronic reel to the first bracing wire take-up or unwrapping wire processing, Second electronic reel handles the second bracing wire take-up or unwrapping wire, and the first sliding block, the second sliding block is enabled to pass through web plate band Dynamic recycled Kraft paper jam passes in and out drying box, avoids and manually takes out recycled Kraft paper jam in drying oven, reaches the effect of safe operation Fruit.

4, drying unit described in the utility model is by screwing out the first bolt from the first threaded hole, and extracts first and insert The second jack at this point, screwing out the second bolt from the second threaded hole, and is extracted in hole, therefore can be by web plate from the first groove body, the It is taken out in two groove bodies, in order to clean to web plate, prevents the ingredient of the viscous glutinous dust of web plate or the exudation of recycled Kraft paper jam.

Detailed description of the invention

Fig. 1 is the schematic perspective view of the utility model kraft inner paper.

Fig. 2 is the first schematic view of the front view that drying unit is used in the utility model production.

Fig. 3 is second of schematic view of the front view that drying unit is used in the utility model production.

Fig. 4 is the schematic view of the front view in the utility model Fig. 3.

The label in accompanying drawing is: 100- surface layer, 200- sandwich layer, the first glue-line of 300-, 400- bottom, the second glue-line of 500-, 1- recycled Kraft paper jam, 2- drying box, 3- pillar, 4- entrance, 5- bracket, 6- exhaust fan, 7- first through hole, 8- Air Filter, 9- heat pump, 10- installs case, the electronic reel of 11- first, the first bracing wire of 13-, the first sliding block of 14-, 15- sliding rail, 16- second are sliding Block, the first groove body of 17-, the first threaded hole of 18-, the first bolt of 19-, the first fixed block of 20-, the first jack of 21-, 22- web plate, The second groove body of 23-, the second threaded hole of 24-, the second bolt of 25-, the second jack of 26-, the second fixed block of 27-, 28-L shape baffle, The second bracing wire of 29-, the electronic reel of 30- second, 31- support rod, 32-T shape connecting plate, the second through-hole of 33-, 34- temperature display Device, 35- heat release hole, 36- third through-hole, 37- pulling block, 38- iron block, 39- magnet, 40-L shape connecting rod, 41- brush, 42- are recessed Slot.

Specific embodiment

The utility model is described further below in conjunction with attached drawing:

Embodiment

A kind of kraft inner paper includes as shown in Figs 1-4 surface layer 100, sandwich layer 200, the first glue-line 300,400 and of bottom Second glue-line 500；100 bottom of surface layer carries out pressurization sizing and forms the first glue-line 300, first glue by double roller sizing applicator Layer 300 with connected at the top of sandwich layer 200；By double roller sizing applicator at the top of bottom 400, carries out pressurization sizing and forms the second glue-line 500, Second glue-line 500 is connect with 200 bottom of sandwich layer；The surface layer 100 is made of the wood pulp cellulose that waste paper screens, the sandwich layer 200 are made of the wood pulp cellulose of waste paper screening, and the bottom 400 is made of the staple fiber that waste paper screens, first glue-line 300, the second glue-line 500 is starch fluid glue application layer.

Since the wood pulp cellulose that the surface layer 100 is screened by waste paper is made, the sandwich layer 200 is that the wood pulp of waste paper screening is fine Dimension is made, and the bottom 400 is made of the staple fiber that waste paper screens, and the glue-line is starch fluid glue application layer, then makes have height Bursting strength, the effect of paper cleaning；Again since 100 bottom of surface layer is by double roller sizing applicator, carries out pressurization sizing and form the first glue Layer 300 connects at the top of first glue-line 300 and sandwich layer 200, passes through double roller sizing applicator at the top of bottom 400, carries out pressurization sizing The second glue-line 500 is formed, second glue-line 500 is connect with 200 bottom of sandwich layer, improves the folding strength of the kraft inner paper.

A kind of kraft inner paper remanufacture drying unit, include recycled Kraft paper jam 1, drying box 2, pillar 3, Bracket 5, exhaust fan 6, Air Filter 8, heat pump 9, installs case 10, the first electronic reel 11, the first bracing wire 13, the first sliding block 14, Sliding rail 15, the second sliding block 16, the first groove body 17, the first bolt 19, the first fixed block 20, web plate 22, the second groove body 23, the second spiral shell Bolt 25, the second fixed block 27, L shape baffle 28, the second bracing wire 29, the second electronic reel 30 and support rod 31；Multiple pillars 3 are solid It is connected to 2 bottom of drying box, sliding rail 15 is fixed in bottom in drying box 2, and support rod 31 is fixed in 15 bottom of sliding rail far from drying box 2 One end, the first groove body 17 is slidably connected by the first sliding block 14 with sliding rail 15, and the second groove body 23 passes through the second sliding block 16 and cunning Rail 15 is slidably connected, and the first groove body 17 is matched with the second groove body 23, at the top of the first groove body 17 be equipped with the first threaded hole 18, first Bolt 19 is bolted in the first threaded hole 18, and the first fixed block 20 is placed in the first groove body 17, is equipped at the top of the first fixed block 20 First jack 21,19 bottom of the first bolt and the inserting of the first jack 21 cooperate, and the second threaded hole 24 is equipped at the top of the second groove body 23, Second bolt 25 is bolted in the second threaded hole 24, and the second fixed block 27 is placed in the second groove body 23,27 top of the second fixed block Equipped with the second jack 26,25 bottom of the second bolt and the inserting of the second jack 26 cooperate, and 2 side of drying box, which is equipped with, supplies the first groove body 17, the entrance 4 that the second groove body 23 enters and leaves, L shape baffle 28 are fixed in the side of the second groove body 23, L shape baffle 28 and entrance 4 It matches, the second electronic reel 30 is fixed in 15 end of sliding rail；Second bracing wire, 29 one end is wire-wrapped in the second electronic reel 30, The other end is fixed in 28 side of L shape baffle；Installs case 10 is fixed in side of the drying box 2 far from entrance 4, the first electronic coiling Wheel 11 is fixed in bottom in drying box 2；First bracing wire, 13 one end is fixed in 17 side of the first groove body, and the other end sequentially passes through drying Case 2, installs case 10 and the first electronic 11 solderless wrapped connection of reel；2 side of drying box is equipped with first through hole 7, and first through hole 7 is located at installation 10 top of case, Air Filter 8 are fixed in first through hole 7, and heat pump 9 is fixed in 2 side of drying box, and 9 output end of heat pump and first are led to Hole 7 is connected to, and exhaust fan 6 is fixed in 2 top of drying box by bracket 5, is connected in exhaust fan 6 and drying box 2.

When needing the drying unit to be dried kraft inner paper front baking or rear baking is dried, starting first is taken out Blower 6, exhaust fan 6 can pump the air that dust is had in drying box 2, at this point, starting heat pump 9, and 9 output of adjusting heat pump Hot blast temperature so that hot wind is entered in drying box 2 by first through hole 7, and 60 degree will be heated to inside drying box 2, again Since Air Filter 8 is fixed in first through hole 7, Air Filter 8 can block dust, i.e., the hot wind of 9 output of heat pump is clean, It is dust-proof to have the effect of.

In above process, recycled Kraft paper jam 1 is put on web plate 22, at this point, the first electronic reel 11 of starting, the Two electronic reels 30, the first electronic reel 11 pack up the first bracing wire 13, meanwhile, the second electronic reel 30 is drawn second Line 29 unclamps, therefore the first bracing wire 13 can pull the first sliding block 14, the second sliding block 16 mobile, i.e. regeneration ox on pulling web plate 22 Pick up paper 1 is mobile, until recycled Kraft paper jam 1 is entered in drying box 2 by entrance 4, meanwhile, L shape baffle 28 and drying The case where 2 side of case connects, and closing entrance 4, prevents during the drying process, and dust enters from entrance 4, with This, achievees the effect that dust-proof.

After recycled Kraft paper jam 1 enters in drying box 2, at this point, adjusting heat pump 9 again, so that the temperature of drying box 2 mentions 110 degree, after for 10 seconds are risen to, heat pump 9 is closed, and starts the second electronic reel 30, the first electronic reel 11 immediately, is made It obtains the first electronic reel 11 to unclamp the first bracing wire 13, the second electronic reel 30 packs up the second bracing wire 29, then second draws It is mobile that line 29 can pull the second sliding block 16, the first sliding block 14 by L shape baffle 28, and is moved from entrance 4, stands cold But after the time of one end, recycled Kraft paper jam 1 can be removed from web plate 22, so as to avoid manually regeneration ox is taken out in drying oven Pick up paper 1, achievees the effect that safe operation.

When needing to clean web plate 22, the first bolt 19 can be screwed out from the first threaded hole 18, and extract the One jack 21, at this point, screwing out the second bolt 25 from the second threaded hole 24, and the second jack 26 is extracted, therefore can be by web plate 22 take out out of the first groove body 17, the second groove body 23, and are cleaned, and the viscous glutinous dust of web plate 22 or recycled Kraft paper jam are prevented The ingredient of 1 exudation.

Wherein, as shown in figure 3, further including having pulling block 37, iron block 38, magnet 39, L shape connecting rod 40 and brush 41；Installation 10 side of case is equipped with the third through-hole 36 entered and left for L shape connecting rod 40, and magnet 39 is fixed in bottom in third through-hole 36, iron block 38 It is fixed in 40 bottom of L shape connecting rod, magnet 39 is connect with 38 magnetism of iron block, and pulling block 37 is fixed in L shape connecting rod 40 far from installation The end of case 10, brush 41 are fixed in 40 one end of L shape connecting rod, and 41 bottom of brush and the first bracing wire 13 connect；First draws For line 13 during the first electronic reel 11 reels, brush 41 can clean the dust in the first bracing wire 13；It can pass through Pulling block 37 extracts L shape connecting rod 40 out from third through-hole 36, i.e., magnet 39 is separated with iron block 38, to clean on brush 41 Dust；After above-mentioned cleaning is complete, by being inserted into installs case 10 in third through-hole 36, i.e., iron block 38 is sucked in magnet 39, in order to Brush 41 cleans the dust in the first bracing wire 13.

Wherein, as shown in figure 3, further including having T shape connecting plate 32；The second through-hole 33 is equipped at the top of installs case 10, first is logical Hole 7 is connected to the second through-hole 33, and T shape connecting plate 32 is affixed through the second through-hole 33 and Air Filter 8, and Air Filter 8 is placed in first In through-hole 7；Air Filter 8 can be extracted out from first through hole 7, the second through-hole 33 by T shape connecting plate 32, in order to Air Filter 8 cleaning.

Wherein, as shown in figure 3, further including having temperature indicator 34；Temperature indicator 34 is fixed in 2 top of drying box, and Sensing element in temperature indicator 34 is fixed in 2 inner top of drying box；Temperature indicator 34 can measure the temperature in drying box 2 Degree, so as to the temperature of the offer of real-time adjusting heat pump 9, wherein the model of temperature indicator 34 can select ZXYM-YD- HT818A。

Wherein, as shown in figure 3,10 side of installs case is additionally provided with heat release hole 35；It prevents the temperature in installs case 10 excessively high, makes The first electronic reel 11 is obtained to burn.

Wherein, in order to improve the leakproofness of drying box 2, referring to shown in Fig. 3,2 side of drying box is additionally provided with groove 42, L shape Baffle 28 and the inserting of groove 42 cooperate.

Wherein, as shown in Fig. 2, the first bolt 19, the second bolt 25 are set as wing bolt；In order to the first bolt 19, Second bolt 25 screwing or spinning up.

The control mode of the utility model is controlled by manually starting and turning off the switch, the wiring diagram of dynamical element with The offer of power supply belongs to the common knowledge of this field, and the utility model is mainly used to protect mechanical device, so this is practical It is novel not to be explained control mode and wiring arrangement.

Although the disclosure is described in detail referring to illustrative embodiments, but the present disclosure is not limited thereto, and right In it should be apparent to those skilled in the art that it can be carry out various modifications without departing from the scope of the disclosure and Change.

Claims

1. a kind of kraft inner paper, which is characterized in that include surface layer (100), sandwich layer (200), the first glue-line (300), bottom (400) and the second glue-line (500)；Surface layer (100) bottom carries out pressurization sizing and forms the first glue-line by double roller sizing applicator (300), it is connect at the top of first glue-line (300) and sandwich layer (200)；By double roller sizing applicator at the top of bottom (400), added Pressure sizing forms the second glue-line (500), and second glue-line (500) connect with sandwich layer (200) bottom；The surface layer (100) is The wood pulp cellulose of waste paper screening is made, and the wood pulp cellulose that the sandwich layer (200) is screened by waste paper is made, and the bottom (400) is The staple fiber of waste paper screening is made, and first glue-line (300), the second glue-line (500) are starch fluid glue application layer.

2. a kind of kraft inner paper remanufacture drying unit includes recycled Kraft paper jam (1), drying box (2), pillar (3), bracket (5), exhaust fan (6), Air Filter (8), heat pump (9), installs case (10), the first electronic reel (11), first are drawn Line (13), the first sliding block (14), sliding rail (15), the second sliding block (16), the first groove body (17), the first bolt (19), first are fixed Block (20), web plate (22), the second groove body (23), the second bolt (25), the second fixed block (27), L shape baffle (28), the second bracing wire (29), the second electronic reel (30) and support rod (31)；Multiple pillars (3) are fixed in drying box (2) bottom, and sliding rail (15) is solid It is connected to drying box (2) interior bottom, support rod (31) is fixed in the one end of sliding rail (15) bottom far from drying box (2), the first groove body (17) it is slidably connected by the first sliding block (14) with sliding rail (15), the second groove body (23) passes through the second sliding block (16) and sliding rail (15) It being slidably connected, the first groove body (17) is matched with the second groove body (23), the first threaded hole (18) are equipped at the top of the first groove body (17), First bolt (19) is bolted in the first threaded hole (18), and the first fixed block (20) is placed in the first groove body (17), and first is fixed The first jack (21) are equipped at the top of block (20), the first bolt (19) bottom and the first jack (21) inserting cooperate, the second groove body (23) top is equipped with the second threaded hole (24), and the second bolt (25) is bolted in the second threaded hole (24), and the second fixed block (27) is put It is placed in the second groove body (23), is equipped with the second jack (26) at the top of the second fixed block (27), the second bolt (25) bottom and second Jack (26) inserting cooperation, drying box (2) side are equipped with the entrance (4) entered and left for the first groove body (17), the second groove body (23), L shape baffle (28) is fixed in the side of the second groove body (23), and L shape baffle (28) is matched with entrance (4), the second electronic coiling Wheel (30) is fixed in sliding rail (15) end；Second bracing wire (29) one end is wire-wrapped in the second electronic reel (30), and the other end is affixed In L shape baffle (28) side；Installs case (10) is fixed in the side of drying box (2) far from entrance (4), the first electronic reel (11) it is fixed in drying box (2) interior bottom；First bracing wire (13) one end is fixed in the first groove body (17) side, and the other end successively passes through Wear drying box (2), installs case (10) and the first electronic reel (11) solderless wrapped connection；Drying box (2) side is equipped with first through hole (7), First through hole (7) is located above installs case (10), and Air Filter (8) is fixed in first through hole (7), and heat pump (9) is fixed in drying Case (2) side, heat pump (9) output end are connected to first through hole (7), and exhaust fan (6) is fixed in drying box (2) by bracket (5) It is connected in top, exhaust fan (6) and drying box (2).

3. a kind of kraft inner paper remanufacture drying unit according to claim 2, which is characterized in that further include having drawing Block (37), iron block (38), magnet (39), L shape connecting rod (40) and brush (41)；Installs case (10) side is equipped with to be connected for L shape The third through-hole (36) that bar (40) enters and leaves, magnet (39) are fixed in third through-hole (36) interior bottom, and iron block (38) is fixed in L shape company Extension bar (40) bottom, magnet (39) are connect with iron block (38) magnetism, and pulling block (37) is fixed in L shape connecting rod (40) far from installs case (10) end, brush (41) are fixed in L shape connecting rod (40) one end, brush (41) bottom and the first bracing wire (13) company of contact It connects.

4. a kind of kraft inner paper remanufacture drying unit according to claim 3, which is characterized in that further include having T Shape connecting plate (32)；The second through-hole (33) are equipped at the top of installs case (10), first through hole (7) is connected to the second through-hole (33), T shape Connecting plate (32) is affixed through the second through-hole (33) and Air Filter (8), and Air Filter (8) is placed in first through hole (7).

5. a kind of kraft inner paper remanufacture drying unit according to claim 4, which is characterized in that further include having temperature It spends display (34)；Temperature indicator (34) is fixed at the top of drying box (2), and the sensing element in temperature indicator (34) is solid It is connected to drying box (2) inner top.

6. a kind of kraft inner paper remanufacture drying unit according to claim 5, which is characterized in that installs case (10) Side is additionally provided with heat release hole (35).

7. a kind of kraft inner paper remanufacture drying unit according to claim 6, which is characterized in that drying box (2) Side is additionally provided with groove (42), and L shape baffle (28) and groove (42) inserting cooperate.

8. a kind of kraft inner paper remanufacture drying unit according to claim 7, which is characterized in that the first bolt (19), the second bolt (25) is set as wing bolt.