Large-cylinder hot-pressing compact type high-speed paper machine

Abstract

The invention relates to a large-cylinder hot-pressing compact type high-speed paper machine which comprises a net part, a pressing part, a drying part, a sizing part, a rear drying part, a press polish part and a coiling part, the net part comprises a rack, a dehydration fourdrinier net and a vacuum assembly, a reverse dehydration assembly is arranged on the rack, a gap is formed between a reverse dehydration box and the dehydration fourdrinier net, and the vacuum assembly is arranged in the gap. Wet paper webs dehydrated and formed by the net part are squeezed by the squeezing part and then conveyed to the drying part to be dried; the device has the advantages that wet paper webs dewatered and formed by the net part are squeezed by the squeezing part and then conveyed to the drying part to be dried, and then the wet paper webs pass through the sizing part, the post-drying part, the calendaring part and the winding part to form paper rolls; the upper surfaces and the lower surfaces of the paper webs are dewatered at the same time due to the reverse dewatering box and the dewatering fourdrinier net; the shoe type pressing structure reduces the running route of a wet paper web and reduces paper breakage, and the channel for the blanket to penetrate through is arranged on the operation side support of the drying part, so that the blanket replacing efficiency is improved, the production efficiency of the paper machine is improved, and the quality of paper sheets can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to a large cylinder hot press compact high-speed paper machine. BACKGROUND

[0002] The papermaking industry is closely related to the development of national economy and social civilization, and is considered as an industry that never dies because it involves agriculture, forestry, machinery, electricity, chemical industry and transportation. As an executive mechanism in production, papermaking equipment is an important part of the papermaking industry, and its development level reflects the development level of the papermaking industry. The traditional paper machine includes a wire section, a pressing section and a drying section, and the water removed by the wire section accounts for more than 95% of the water removed by the pulp on the wire. The existing wire section generally adopts a single long net structure. This single long net structure can only perform single-side dehydration, which is low in dehydration efficiency, and is prone to cause problems such as low paper leaf dryness, poor quality and large steam consumption, which seriously affects the yield of the product. The traditional pressing section may cause rewetting at the pressing outlet, resulting in a loss of 10% of the paper dryness. In the continuous production process of the paper machine, the loss of the felt in the large cylinder hot pressing drying section cannot be avoided. When the service life of the felt is reached, the paper machine must be stopped for felt replacement. The existing large cylinder hot pressing drying section adopts a traditional closed frame. The new felt cannot be directly loaded from the operating side of the paper machine frame, and the carrier rollers and guide rollers inside the felt loop path need to be removed, which often takes a whole day or even more time, and the labor intensity of the operator is high, the felt replacement efficiency is low, and the paper machine needs to be stopped for a long time, which directly affects the production capacity of the papermaking enterprise, thereby causing the problems of low production efficiency and low product quality of the traditional paper machine. SUMMARY

[0003] The purpose of the present application is to solve the problem of low production efficiency of the existing paper machine in production, and to provide a large cylinder hot pressing compact high-speed paper machine. The wet paper web formed by dehydration in the wire section is conveyed to the drying section after being pressed by the pressing section, and then the paper roll is completed by the gluing section, the post-drying section, the calendering section and the winding section. Since the reverse dehydration tank and the dehydration long net realize the simultaneous dehydration of the upper and lower surfaces of the paper web, the boot pressing structure reduces the running route of the wet paper web and reduces the occurrence of paper breakage, and the passage for the felt to pass through is arranged on the operating side support of the drying section, which improves the felt replacement efficiency. Not only the production efficiency of the paper machine is improved, but also the quality of the paper sheet is improved.

[0004] In order to solve the above technical problems, the present application is realized by the following technical scheme: a large cylinder hot press compact high-speed paper machine, comprising a wire section, a press section, a drying section, a sizing section, a post-drying section, a calender section and a winding section, the wire section comprising a rack, a dewatering long net and a vacuum assembly, the dewatering long net and the vacuum assembly being arranged on the rack, the drying section comprising a transmission side support, an operation side support and a felt arranged between the transmission side support and the operation side support, the rack being provided with a reverse dewatering assembly connected with the vacuum assembly, a gap for paper sheet transmission being arranged between the reverse dewatering assembly and the dewatering long net, the wet paper web formed by dewatering in the wire section being conveyed to the drying section for drying after being pressed in the press section; the press section being a shoe press structure; the operation side support being provided with a plurality of channels for the felt to pass through, the channels being provided with a pull-out seat, the pull-out seat being detachably installed in the channels, the operation side support between the adjacent two channels being provided with a cantilever beam connected with the transmission side support.

[0005] Preferably, the reverse dewatering assembly comprises a dewatering box and a dewatering element, the dewatering box being arranged on the rack, the dewatering element being arranged at the bottom end of the dewatering box, the dewatering box being provided with a cavity, a channel for water vapor flow being arranged between the cavity and the dewatering element, the dewatering box being provided with an adjusting assembly for adjusting the end seal of the dewatering element, the dewatering box being connected with the vacuum assembly, the gas in the dewatering box being extracted by the vacuum assembly to form negative pressure in the cavity and to absorb the liquid on the paper sheet.

[0006] Preferably, the dewatering box is provided with two partitions, the two partitions separating the cavity into a first cavity, a second cavity and a third cavity, the first cavity, the second cavity and the third cavity being provided with the channel, the channel being provided with a flow guide plate, the bottom end of the dewatering box being provided with a connecting plate, the bottom end of the connecting plate being provided with an installation strip for installing the dewatering element, the dewatering box comprising a box body, a left baffle and a right baffle, the box body being arranged between the left baffle and the right baffle, the left baffle being provided with a connecting pipe, the right baffle being provided with an inspection opening and a sealing plate for sealing the inspection opening, the sealing plate being detachably installed on the right baffle, the box body being provided with an air pipe, the box body being a 316L stainless steel box body, and the dewatering element being a silicon nitride dewatering element.

[0007] Preferably, the adjusting assembly comprises a fixed part and an adjusting part, the fixed part is arranged on the dehydration tank, the adjusting part is movably connected to the fixed part, and a first indicating assembly is arranged between the fixed part and the adjusting part; the fixed part comprises a fixed rod and a fixed block, the fixed rod is fixedly installed on the dehydration tank, and the fixed block is arranged on the fixed rod; the adjusting part comprises an adjusting rod, a fixed plate and an end seal adjusting block, one end of the adjusting rod is connected to the fixed plate after penetrating through the fixed block, the end seal adjusting block is arranged on the fixed plate, and the other end of the adjusting rod is provided with a handle; the first indicating assembly comprises a first scale indicating plate and a first pointer, the first scale indicating plate is arranged between the fixed block and the dehydration tank, and the first pointer is arranged on the fixed plate.

[0008] Preferably, the dehydration tank is provided with a connecting assembly connected to the rack, the connecting assembly comprises a fixed frame, a first connecting frame and a second connecting frame, the fixed frame is fixedly installed on the dehydration tank, the first connecting frame is detachably installed on the fixed frame, the fixed frame is provided with a height adjusting mechanism connected to the second connecting frame, the height adjusting mechanism comprises a fixed shaft fixedly installed on the fixed frame and a connecting rod connected to the second connecting frame, the connecting rod is provided with a vertical strip-shaped hole, the fixed shaft is provided with a locking nut, the bottom end of the connecting rod is provided with a screw rod abutting against the fixed shaft, and a second indicating assembly is arranged between the connecting rod and the fixed frame, the second indicating assembly comprises a second scale indicating plate and a second pointer, the second scale indicating plate is arranged on the fixed frame, and the second pointer is arranged on the connecting rod.

[0009] Preferably, the dehydration tank is provided with a tensioning assembly for preventing the dehydration tank from swinging, a third indicating assembly is arranged between the tensioning assembly and the dehydration tank, the tensioning assembly comprises a base plate, a connecting rod, a connecting plate, a first pull rod and a second pull rod, the base plate and the connecting rod are fixedly installed on the dehydration tank, the first pull rod is arranged between the base plate and the connecting rod, one end of the connecting plate is connected to the connecting rod, the other end of the connecting plate is connected to one end of the second pull rod, the other end of the second pull rod is installed on the dehydration tank, the third indicating assembly comprises a third scale indicating plate and a third pointer, the third scale indicating plate is arranged on the dehydration tank, and the third pointer is arranged on the connecting plate.

[0010] Preferably, the drying part further comprises a concrete base, one of the extension sections is provided with a first bearing rod connected to the concrete base, and the other extension sections are provided with second bearing rods, and the first bearing rod and the second bearing rods bear the weight of the whole drying part when the extraction seat is taken out from the channel.

[0011] Preferably, the upper and lower ends of the channel are provided with a mounting plate, the pull-out seat is detachably mounted between the two mounting plates, and the two mounting plates are provided with locking structure, and the locking structure comprises a bolt and a first nut, the bolt passes through the two mounting plates and is locked by the first nut.

[0012] Preferably, the mounting plate is provided with a mounting groove, the mounting groove is provided with a positioning key, the pull-out seat is provided with a positioning key groove matched with the positioning key, and the mounting groove or the positioning key is provided with a baffle, the baffle is detachably mounted on the mounting groove or the positioning key by a screw, the operating side support is provided with a threaded hole matched with the screw, and the baffle is fixed on the operating side support by the connection of the screw and the threaded hole when the pull-out seat is removed.

[0013] Preferably, the first bearing rod and the second bearing rod are alloy steel bearing rods, the bottom end of the first bearing rod is provided with a base, the base is arranged in the concrete base, the first bearing rod is provided with two second nuts, the base is arranged between the two second nuts, and a pad plate is arranged on the first bearing rod between the second nuts and the base; the two ends of the second bearing rod are provided with a third nut, and the second bearing rod passes through the cantilever beam and is locked by the third nut.

[0014] In summary, the advantages of the present application are as follows: the wet paper web formed by the dewatering and forming of the net section is conveyed to the drying section after being pressed by the pressing section, and then the paper roll is completed by the gluing section, the post-drying section, the calendering section and the winding section, since the gap for paper transmission is provided between the reverse dewatering box and the dewatering wire, the paper above can be dewatered by the suction of the vacuum assembly, and the paper below can be dewatered by the dewatering wire, so that the upper and lower surfaces of the paper web are simultaneously dewatered, that is, the dewatering efficiency is improved, and the difference between the two surfaces of the paper is reduced, the dryness of the wet paper web when it leaves the net section is 1-2% higher than that of the traditional net section, under the condition of the same drying capacity, the yield can be increased by 2-3%, energy saving and consumption reduction are realized, secondly, the pressing section is a shoe type pressing structure, the overall layout of the paper machine is more compact, the floor space is reduced, the shoe type pressing structure reduces the running route of the wet paper web and reduces the paper breakage, meets the demand of the pressing section for efficient dewatering of the paper web, the dryness of the paper is improved, and the paper leading is more convenient, the working speed of the paper machine is significantly improved, finally, the channel for the felt to pass through is provided on the operating side support, therefore, when the felt is replaced, the felt can be pulled out from the channel by taking out the pull-out seat in the channel, then the new felt is pushed into the channel, the replacement of the felt is completed, and the pull-out seat is reset, the replacement of the felt does not need to remove the supporting roller and the guide roller, thereby reducing the working strength of the operator, the replacement time of the felt is only three hours, the replacement efficiency of the felt is greatly improved, the downtime is reduced, the production efficiency of the paper machine is improved, and the quality of the paper is improved, in addition, the pull-out seat is detachably arranged in the channel, on the one hand, the operator can easily take out the pull-out seat from the channel, and on the other hand, the overall strength of the operating side support is ensured, the cantilever beam is arranged, when the pull-out seat is taken out from the channel, the stability of the entire operating side support can be maintained by the pulling force of the cantilever beam, and the safety performance during the replacement of the felt is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] The present application will be further described below in combination with the drawings: Figure 1 It is a structure schematic view of the large cylinder hot pressing compact type high-speed paper machine of the present application; Figure 2 It is a structure schematic view of the net section in the present application Figure 3 It is a structure schematic view of the reverse dewatering assembly in the present application; Figure 4 It is a structure schematic view of the dewatering box in the present application; Figure 5 It is a structure schematic view of the box body in the present application; Figure 6 It is a structure schematic view of the dewatering element on the dewatering box in the present application; Figure 7 It is Figure 2A local enlarged view of the middle J; Figure 8 A local enlarged view of the middle J; Figure 2 A local enlarged view of the middle K; Figure 9 A structure diagram of the reverse dewatering assembly connected with the vacuum assembly in the application; Figure 10 A structure diagram of the drying part in the application; Figure 11 A local diagram of the operating side support in the application; Figure 12 A structure diagram of the first bearing rod in the application; Figure 13 A structure diagram of the cantilever beam in the application.

[0016] Reference signs: A web part; A1 frame, A2 dewatering long net, A3 vacuum assembly, A4 reverse dewatering assembly, A5 gap, A6 paper sheet; A41 dewatering box, A410 cavity, A4101 first cavity, A4102 second cavity, A4103 third cavity, A411 channel, A4111 flow guide plate, A412 partition plate, A413 connecting plate, A4131 mounting strip, A414 box body, A415 left baffle, A416 right baffle, A417 sealing plate, A418 connecting pipe, A419 air pipe, A42 dewatering element, A43 adjusting assembly, A431 fixed part, A4311 fixed rod, A4312 fixed block, A432 adjusting part, A4321 adjusting rod, A4322 fixed plate, A4323 end sealing adjusting block, A4324 handle, A433 first indicating assembly, A4331 first scale indicating plate, A4332 first pointer, A44 connecting assembly, A441 fixed frame, A442 first connecting frame, A443 second connecting frame, A444 height adjusting mechanism, A4441 fixed shaft, A4442 connecting rod, A4443 vertical strip-shaped hole, A4444 locking nut, A4445 screw rod, A445 second indicating assembly, A4451 second scale indicating plate, A4452 second pointer, A45 tensioning assembly, A451 base plate, A452 connecting rod, A453 connecting plate, A454 first tensioning rod, A455 second tensioning rod, A46 third indicating assembly, A461 third scale indicating plate, A462 third pointer; B press part; C drying part; C1 drive side support, C2 operation side support, C21 threaded hole, C3 felt, C4 channel, C40 mounting plate, C401 groove, C402 mounting slot, C403 positioning key, C404 baffle, C405 screw, C41 locking structure, C411 bolt, C412 first nut, C5 pull-out seat, C51 positioning key slot, C52 handle, C6 cantilever beam, C60 extension beam, C61 second bearing rod, C62 third nut, C7 concrete base, C8 first bearing rod, C80 base, C81 second nut, C82 external thread, C83 backing plate; D sizing section; E post-drying section; F calendering section; G winding section. DETAILED DESCRIPTION

[0017] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 and Figure 13 , a large cylinder thermal press compact high-speed paper machine comprises a wire section A, a press section B, a drying section C, a sizing section D, a post-drying section E, a calendering section F and a winding section G, the sizing section D, the post-drying section E, the calendering section F and the winding section G are all prior art, and this embodiment will not be described in detail, the wire section A comprises a rack A1, a dewatering wire A2 and a vacuum assembly A3, the dewatering wire A2 and the vacuum assembly A3 are both arranged on the rack A1, the drying section C comprises a drive side support C1, an operation side support C2 and a felt C3 arranged between the drive side support C1 and the operation side support C2, the felt C3 is installed between the drive side support C1 and the operation side support C2 through a carrier roll and a guide roll, and the specific installation structure is prior art, which will not be described in detail in this embodiment, the rack A1 is provided with a reverse dewatering assembly A4 connected with the vacuum assembly A3, a gap A5 for transmitting a paper sheet A6 is arranged between the reverse dewatering box A41 and the dewatering wire A2, and a wet paper web formed by the wire section A is conveyed to the drying section C for drying after being pressed by the press section B; the press section B is a shoe press structure, and the specific structure of the shoe press structure is prior art, which will not be described in detail in this embodiment; the operation side support C2 is provided with a plurality of channels C4 through which the felt C3 passes, the channels C4 are provided with pull-out seats C5, and the pull-out seats C5 are detachably installed in the channels C4.

[0018] The wet paper web formed by the net section is conveyed to the drying section after being pressed by the press section, and then is dried by the gluing section, the post-drying section, the calender section and the winding section. Since the gap for paper sheet transmission is provided between the reverse dewatering box and the dewatering wire, the paper sheet can be dewatered by the suction of the vacuum assembly from the top and by the dewatering wire from the bottom during the operation of the net section, so that the paper web is dewatered from both sides at the same time, which improves the dewatering efficiency and reduces the difference between the two sides of the paper sheet. The dryness of the wet paper web when it leaves the net section is 1% to 2% higher than that of the traditional net section. Under the same drying capacity, the production can be increased by 2% to 3%, energy saving and consumption reduction are realized. Secondly, the press section is provided with a shoe press structure, so that the overall layout of the paper machine is more compact, the floor area is reduced, the shoe press structure reduces the running route of the wet paper web and reduces the paper breakage, meets the demand of the press section for efficient dewatering of the paper web, and the dryness of the paper is improved, which is more convenient for paper leading, significantly improves the working speed of the paper machine, and finally, a channel for the felt to pass through is provided on the operating side support, so that when the felt is replaced, the felt can be pulled out from the channel by taking out the pull-out seat in the channel, and then the new felt can be installed by pushing the new felt into the channel, and finally the replacement operation is completed by resetting the pull-out seat. The whole replacement operation does not need to disassemble the supporting roller and the guide roller, thereby reducing the working strength of the operator, the whole replacement time is only three hours, the replacement efficiency is greatly improved, the downtime is reduced, the production efficiency of the paper machine is improved, and the quality of the paper sheet is improved. In addition, the pull-out seat is provided in the channel in a detachable mounting structure, which is convenient for the operator to easily take out the pull-out seat from the channel, and can ensure the overall strength of the operating side support. The cantilever beam is provided, which can maintain the stability of the whole operating side support when the pull-out seat is taken out from the channel, and ensures the safety performance during the replacement of the felt.

[0019] Again looking at Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9The reverse dewatering assembly A4 comprises a dewatering box A41 and a dewatering element A42. The dewatering box A41 is arranged on the frame A1, and the dewatering element A42 is arranged at the bottom end of the dewatering box A41. The dewatering box A41 is internally provided with a cavity A410. The cavity A410 is provided with a channel A411 for water vapor flow between the cavity A410 and the dewatering element A42. The dewatering box A41 is provided with an adjusting assembly A43 for adjusting the end seal of the dewatering element A42. The dewatering box A41 is connected with the vacuum assembly A3. The vacuum assembly A3 is used to extract the gas in the dewatering box A41 to form a negative pressure in the cavity A410 and to suck the liquid on the paper sheet A6. The reverse dewatering assembly A4 is arranged as the dewatering box A41 and the dewatering element A42. The vacuum assembly A3 is used to extract the gas in the dewatering box A41 to form a negative pressure in the cavity A410 and to suck the liquid on the paper sheet A6. Therefore, the reverse dewatering process can be performed on the upper side of the paper sheet A6. The negative pressure environment can accelerate the extraction of the liquid on the surface of the paper sheet A6. The dewatering efficiency of the paper sheet A6 is improved. The dryness of the paper web and the quality of the paper product are improved. The channel A411 is arranged between the cavity A410 and the dewatering element A42. Therefore, the flow path of the water vapor can be ensured. The dewatering efficiency is further improved. The production efficiency and the yield of the product are greatly improved. The adjusting assembly A43 is arranged. The end seal of the dewatering element A42 can be effectively adjusted. The extraction width of the vacuum can be adjusted. The different process requirements and environmental requirements can be met. The service life of the whole device is improved.

[0020] Then see Figure 5 The dewatering box A41 is internally provided with two partitions A412. The two partitions A412 divide the cavity A410 into a first cavity A4101, a second cavity A4102 and a third cavity A4103. The first cavity A4101, the second cavity A4102 and the third cavity A4103 are all provided with the channel A411. The channel A411 is provided with a flow guide plate A4111. The bottom end of the dewatering box A41 is provided with a connecting plate A413. The bottom end of the connecting plate A413 is provided with a mounting strip A4131 for mounting the dewatering element A42. The structure of the whole dewatering box A41 can be simplified. The cavity A410 is divided into three cavities A410. The dewatering efficiency can be improved. The different dewatering requirements can be met. The flow guide plate A4111 is arranged. The water vapor can be guided to ensure that the water vapor can accurately enter the first cavity A4101, the second cavity A4102 and the third cavity A4103. The specific flow path is as shown in Figure 4The setting of the connecting plate A413 and the mounting strip A4131 shown in the arrow direction can simplify the mounting structure of the dewatering element A42, facilitate the replacement and maintenance of the subsequent dewatering element A42, and improve the strength of the bottom of the entire dewatering box A41, which includes the box body A414, the left baffle A415 and the right baffle A416. The box body A414 is arranged between the left baffle A415 and the right baffle A416. The left baffle A415 is provided with a connecting pipe A418. The right baffle A416 is provided with a maintenance opening and a sealing plate A417 for sealing the maintenance opening. In this embodiment, the sealing plate A417 is detachably mounted on the right baffle A416 by bolts. The sealing plate A417 is detachably mounted on the right baffle A416. The box body A414 is provided with an air pipe A419. The dewatering box A41 is arranged as the box body A414, the left baffle A415 and the right baffle A416. Since the right baffle A416 is provided with the maintenance opening and the sealing plate A417 for sealing the maintenance opening, the dewatering box A41 can be quickly maintained and repaired. In specific use, the air pipe A419 is connected with the vacuum pipeline of the vacuum assembly A3, and the connecting pipe A418 is connected with the steam-water separator of the vacuum assembly A3. The mounting structure of the dewatering box A41 and the vacuum assembly A3 is simplified. The box body A414 is a 316L stainless steel box body. The dewatering element A42 is a silicon nitride dewatering element. The box body A414 is arranged as a 316L stainless steel box body, so that the box body A414 has good corrosion resistance and good mechanical properties, and the entire dewatering box A41 can remain stable when bearing a large load and deformation, thereby ensuring the overall installation strength. The dewatering element A42 is a silicon nitride dewatering element, so that the dewatering element A42 has good wear resistance, high strength and chemical stability, ensuring the stability of dewatering, and the service life of the entire dewatering element A42 can be extended by 10-20%.

[0021] See Figure 6 and Figure 7The adjusting assembly A43 comprises a fixing part A431 and an adjusting part A432, the fixing part A431 is arranged on the dehydration tank A41, the adjusting part A432 is movably connected to the fixing part A431, a first indicating assembly A433 is arranged between the fixing part A431 and the adjusting part A432, the adjusting assembly A43 is arranged as the fixing part A431 and the adjusting part A432, the fixing part A431 is arranged on the dehydration tank A41, the adjusting part A432 is movably connected to the fixing part A431, the displacement is adjusted by the adjusting part A432, and the adjustment range is quantified by the first indicating assembly A433, and the adjusting effect is improved. Specifically, the fixing part A431 comprises a fixing rod A4311 and a fixing block A4312, the fixing rod A4311 is fixedly installed on the dehydration tank A41, and the fixing block A4312 is arranged on the fixing rod A4311. The fixing part A431 is arranged as the fixing rod A4311 and the fixing block A4312, the fixing rod A4311 can stably fix the fixing block A4312 on the dehydration tank A41, and the shaking of the fixing block A4312 during operation is avoided, the adjusting part A432 comprises an adjusting rod A4321, a fixing plate A4322 and an end sealing adjusting block A4323, one end of the adjusting rod A4321 is connected to the fixing plate A4322 after penetrating through the fixing block A4312, specifically, the fixing block A4312 is provided with a through hole, the adjusting rod A4321 is arranged in the through hole, and a screw thread is arranged on the outer side wall of the adjusting rod A4321, the fixing plate A4322 is provided with a nut matched with the screw thread, the mobility of the fixing plate A4322 is ensured to be stable, the adjusting efficiency is improved, and the service life of the whole adjusting part A432 is improved, the end sealing adjusting block A4323 is arranged on the fixing plate A4322, the other end of the adjusting rod A4321 is provided with a handle A4324, the handle A4324 is arranged to facilitate the operator to operate the adjusting rod A4321, the first indicating assembly A433 comprises a first scale indicating plate A4331 and a first pointer A4332, the first scale indicating plate A4331 is arranged between the fixing block A4312 and the dehydration tank A41, and the first pointer A4332 is arranged on the fixing plate A4322. The first indicating assembly A433 is arranged as the first scale indicating plate A4331 and the first pointer A4332, the operator can intuitively read the adjustment range, the manual experience error is avoided, and the consistency of processing effects of different batches is ensured.

[0022] The dehydration tank A41 is provided with a connecting assembly A44 connected with the rack A1, the connecting assembly A44 comprises a fixing frame A441, a first connecting frame A442 and a second connecting frame A443, the fixing frame A441 is fixedly installed on the dehydration tank A41, the first connecting frame A442 is detachably installed on the fixing frame A441, in the embodiment, the first connecting frame A442 is provided with a connecting hole, the fixing frame A441 is provided with a connecting shaft, the first connecting frame A442 is installed on the connecting shaft, and the connecting shaft is provided with a nut, the specific installation structure is prior art, and the embodiment will not be described in detail, the whole installation and disassembly are convenient, the fixing frame A441 is provided with a height adjusting mechanism A444 connected with the second connecting frame A443, the height adjusting mechanism A444 comprises a fixed shaft A4441 fixedly installed on the fixing frame A441, and a connecting rod A4442 connected with the second connecting frame A443, the connecting rod A4442 is provided with a vertical strip-shaped hole A4443, the fixed shaft A4441 is provided with a locking nut A4444, the bottom end of the connecting rod A4442 is provided with a screw rod A4445 abutting against the fixed shaft A4441, the connecting rod A4442 and the fixing frame A441 are provided with a second indicating assembly A445, the second indicating assembly A445 comprises a second scale indicating plate A4451 and a second pointer A4452, the second scale indicating plate A4451 is arranged on the fixing frame A441, and the second pointer A4452 is arranged on the connecting rod A4442. The connecting assembly A44 is arranged, and the dehydration tank A41 can be quickly fixed on the rack A1 of the paper machine, and the overall installation structure is simplified, and subsequent maintenance and maintenance are facilitated. Secondly, the connecting assembly A44 is arranged as the structure of the fixing frame A441, the first connecting frame A442 and the second connecting frame A443, because the first connecting frame A442 is detachably installed on the fixing frame A441, and the second connecting frame A443 is installed on the fixing frame A441 through the height adjusting mechanism assembly, therefore, the number of the first connecting frame A442 and the height of the second connecting frame A443 can be set according to actual installation requirements, different installation requirements are met, the installation quality of the whole dehydration tank A41 is improved, the height adjusting mechanism A444 is arranged as the structure of the fixed shaft A4441 and the connecting rod A4442, because the connecting rod A4442 is provided with a vertical strip-shaped hole, therefore, the straightness during height adjustment can be guaranteed, secondly, the locking nut A4444 can quickly lock the position of the connecting rod A4442, and is limited through the screw rod A4445 at the bottom end of the connecting rod A4442, to prevent shaking of the connecting rod A4442 during use, the second indicating assembly A445 is arranged as the second scale indicating plate A4451 and the second pointer A4452, therefore, the displacement amount adjusted by the height adjusting mechanism A444 can be directly read, accurate adjustment of the second connecting frame A443 is realized, and the installation efficiency of the dehydration tank A41 is improved.

[0023] The dehydration tank A41 is provided with a tensioning assembly A45 for preventing the dehydration tank A41 from swinging, and a third indicating assembly A46 is arranged between the tensioning assembly A45 and the dehydration tank A41. The arrangement of the tensioning assembly A45 can effectively prevent the dehydration tank A41 from swinging, ensure the stability of the dehydration tank A41 during use, and improve the service life of the dehydration tank A41. The arrangement of the third indicating assembly A46 can effectively indicate the position of the dehydration tank A41. Specifically, the tensioning assembly A45 comprises a base plate A451, a connecting rod A452, a connecting plate A453, a first pull rod A454 and a second pull rod A455. The base plate A451 and the connecting rod A452 are fixedly installed on the dehydration tank A41. The first pull rod A454 is arranged between the base plate A451 and the connecting rod A452. One end of the connecting plate A453 is connected with the connecting rod A452, and the other end of the connecting plate A453 is connected with one end of the second pull rod A455. The other end of the second pull rod A455 is installed on the dehydration tank A41. The third indicating assembly A46 comprises a third scale indicating plate A461 and a third pointer A462. The third scale indicating plate A461 is arranged on the dehydration tank A41, and the third pointer A462 is arranged on the connecting plate A453. In this embodiment, the base plate A451 is fixedly installed on the dehydration tank A41 by screws, and the whole installation is convenient and reliable. The dehydration tank A41 is provided with a plurality of bearing seats for installing the connecting rod A452. Each bearing seat is matched with one first pull rod A454, so that the connecting rod A452 can be installed. The whole structure is simple, the tensioning effect is good, and the stability of the tensioning assembly A45 can be ensured through the cooperation of the first pull rod A454 and the second pull rod A455. The third indicating assembly A46 is arranged as the third scale indicating plate A461 and the third pointer A462, so that the operator can easily obtain whether the dehydration tank A41 swings and the displacement amount of the swing, and the maintenance is convenient.

[0024] Finally look Figure 10 , Figure 11 , Figure 12 and Figure 13The drying part C further comprises a concrete base C7, the cantilever beam C6 is provided with an extension beam C60 extending above the concrete base C7, and the extension beam C60 and the cantilever beam C6 are in an integral structure, wherein the extension beam C60 is provided with the first bearing rod C8 connected with the concrete base C7, and the second bearing rod C61 is arranged between the adjacent two extension beams C60, and the first bearing rod C8 and the second bearing rod C61 bear the weight of the whole drying part C when the drawout seat C5 is taken out from the channel C4. By arranging the extension beam C60 on the cantilever beam C6, the first bearing rod C8 connected with the concrete base C80 is arranged on the extension beam C60, and the second bearing rod C61 is arranged between the adjacent two extension beams C60, the first bearing rod C8 and the second bearing rod C61 can improve the rigidity and stability of the whole cantilever beam C6, and can bear the weight of the whole when the drawout seat C5 is taken out from the channel C4, thereby ensuring the stability of the whole, which is beneficial to the drawout of the blanket C3 and the installation and reset of the drawout seat C5, and can effectively prevent the cantilever beam C6 from being deformed or broken during the blanket changing operation, thereby improving the safety performance of the whole. In the embodiment, the first bearing rod C8 is arranged on the extension beam C60 of the lowermost cantilever beam C6, and the extension beam C60 and the cantilever beam C6 are arranged in an integral structure, which can simplify the mounting structure between the extension beam C60 and the cantilever beam C6, improve the connection strength between the extension beam C60 and the cantilever beam C6, and improve the service life of the whole.

[0025] The upper and lower ends of the channel C4 are provided with an installation plate C40, the pull-out seat C5 is detachably installed between the two installation plates C40, and the two installation plates C40 are provided with locking structures C41. The installation plate can enable the pull-out seat C5 to be stably installed in the channel C4. Since the two installation plates C40 are provided with the locking structures C41, the pull-out seat C5 can be prevented from being displaced or vibrated during the overall operation, and the fixing quality of the pull-out seat C5 is improved. The locking structure C41 comprises a bolt C411 and a first nut C412. The bolt C411 passes through the two installation plates C40 and is locked by the first nut C412. The locking structure C41 is provided in the structure of the bolt C411 and the first nut C412, and is convenient to install and detach and is firmly connected. The installation plate C40 is provided with a through hole or a groove C401 for the bolt C411 to pass through. Different structures of the installation plate C40 can be set according to different installation requirements to meet different installation requirements. The embodiment preferably adopts the structure of the groove C401. The groove C401 is arranged on the front side wall of the installation plate C40 and is a U-shaped groove. The installation structure of the bolt C411 is simplified, the installation and detachment of the bolt C411 are facilitated, and the groove C401 does not reduce the overall installation strength of the installation plate C40. Specifically, when the blanket C3 needs to be replaced, the first nut C412 is loosened, the bolt C411 is removed from the installation plate C40, the installation plate C40 is lifted upward by a jack, the pull-out seat C5 can be quickly taken out, the overall weight is borne by the pull rod and the reinforcing rod, the blanket C3 can be taken out from the channel C4, a new blanket C3 is pushed into the channel C4, and the pull-out seat C5 is reset to complete the blanket replacement operation.

[0026] The mounting plate C40 is provided with a mounting groove C402, the mounting groove C402 is provided with a positioning key C403, the pull-out seat C5 is provided with a positioning key groove C51 matched with the positioning key C403, the cooperation of the positioning key C403 and the positioning key groove C51 can realize the accurate positioning of the pull-out seat C5, improve the assembly efficiency, and improve the stability of the whole structure, on the other hand, can reduce the shaking of the pull-out seat C5. The positioning key C403 is arranged in the mounting groove C402, which can improve the positioning accuracy and stability of the positioning key C403. The mounting groove C402 or the positioning key C403 is provided with a baffle C404. The baffle C404 not only plays a certain blocking role in the pulling-out of the pull-out seat C5, but also plays a limiting role in the installation position of the pull-out seat C5. The baffle C404 is arranged on the mounting groove C402 or the positioning key C403, which can set the installation position of the baffle C404 according to different installation requirements to meet different installation requirements. The baffle C404 is detachably mounted on the mounting groove C402 or the positioning key C403 through the screw C405. The screw C405 is convenient to install and detach, and the connection is reliable. The baffle C404 is arranged on the positioning key C403 in the embodiment. The operating side support C2 is provided with a threaded hole C21 matched with the screw C405. When the pull-out seat C5 is removed, the baffle C404 is fixed on the operating side support C2 through the connection of the screw C405 and the threaded hole C21, which can prevent the loss of the baffle C404. The threaded hole C21 is provided with a plurality of threaded holes, and the disassembled locking structure C41 can also be fixed on the operating side support C2.

[0027] The pull-out seat C5 is a stainless steel pull-out seat. The pull-out seat C5 is arranged as a stainless steel pull-out seat, which can ensure that the pull-out seat C5 has good installation strength and will not deform during installation, thereby improving the service life of the pull-out seat C5. The pull-out seat C5 has a hollow structure, which can effectively reduce the weight of the pull-out seat C5 and facilitate the installation and disassembly of the operator. The pull-out seat C5 is provided with a pull handle C52 on the front side wall and the left and right side walls. The pull handle C52 is arranged on the front side wall and the left and right side walls of the pull-out seat C5, so that the operator can better grasp the pull handle C52 when taking out the pull-out seat C5, thereby improving the efficiency of taking out the pull-out seat C5. Since the pull handle C52 is arranged on the front side wall and the left and right side walls of the pull-out seat C5, multi-directional grasping of the pull-out seat C5 can be realized, and the flexibility of operation is improved. In the embodiment, a rubber sleeve or a finger ring groove can be arranged on the pull handle C52 to further improve the grasping quality.

[0028] The first bearing rod C8 and the second bearing rod C61 are alloy steel bearing rods, and the bottom end of the first bearing rod C8 is provided with a base C80, the base C80 is arranged in the concrete base C7, two second nuts C81 are arranged on the first bearing rod C8, and the base C80 is arranged between the two second nuts C81, and a pad C83 is arranged on the first bearing rod C8 between the second nut C81 and the base C80. The first bearing rod C8 is arranged as an alloy steel bearing rod, which can greatly improve the strength of the entire first bearing rod C8, ensure the reliability of the connection of the first bearing rod C8, and increase the contact area between the first bearing rod C8 and the concrete base C7, thereby improving the connection strength of the first bearing rod C8 and the concrete base C7. The first bearing rod C8 is provided with two second nuts C81, the base C80 is arranged between the two second nuts C81, and the pad C83 is arranged on the first bearing rod C8 between the second nut C81 and the base C80. Specifically, the bottom end of the first bearing rod C8 is provided with an external thread C82, the second nut C81 is arranged on the external thread C82, and the base C80 is provided with a mounting hole through which the external thread C82 passes. The mounting structure of the base C80 and the first bearing rod C8 is simplified, the overall installation and disassembly is convenient, the connection is reliable, the pad C83 is arranged to reduce the pressure between the second nut C81 and the base C80, thereby reducing the damage to the base C80 when the second nut C81 is locked, and the locking force of the second nut C81 can be evenly distributed, thereby further improving the stability and fastening force of the connection between the first bearing rod C8 and the base C80. The two ends of the second bearing rod C61 are provided with a third nut C62, and the second bearing rod C61 is locked through the third nut C62 after passing through the extension beam C60. Specifically, the two ends of the second bearing rod C61 are provided with studs, and the extension beam C60 is provided with a through hole through which the second bearing rod C61 passes. The mounting structure between the second bearing rod C61 and the extension beam C60 is simplified, the third nut C62 can ensure the close connection between the second bearing rod C61 and the extension beam C60, the second bearing rod C61 is arranged as an alloy steel bearing rod, which can greatly improve the strength of the entire second bearing rod C61, ensure the reliability of the connection of the second bearing rod C61, and improve the service life of the second bearing rod C61. In addition, a gasket can be arranged on the second bearing rod C61, the gasket is arranged between the third nut C62 and the extension beam C60, which can reduce the pressure between the third nut C62 and the extension beam C60, thereby reducing the damage to the extension beam C60 when the third nut C62 is locked, and the locking force of the third nut C62 can be evenly distributed, thereby further improving the stability and fastening force of the connection between the second bearing rod C61 and the extension beam C60.

[0029] In addition to the preferred embodiments described above, further embodiments of the application will become apparent to those skilled in the art from a consideration of the specification or practice of the application as disclosed herein. It is intended that all such embodiments, including equivalents thereof, be included within the scope of the following claims.

Claims

1. A large vat thermal press compact high speed paper machine, comprising a wire section, a press section, a drying section, a sizing section, a post drying section, a calender section and a reel section, the wire section comprising a machine frame, a dewatering wire and a vacuum assembly, the dewatering wire and the vacuum assembly are both disposed on the machine frame, the drying section comprising a drive side support, an operating side support and a felt disposed between the drive side support and the operating side support, characterized in that: The reverse dewatering assembly is connected with the vacuum assembly, and a gap for paper transmission is arranged between the reverse dewatering assembly and the dewatering long net; the wet paper web formed by the net part is conveyed to the drying part for drying after being pressed by the pressing part; the pressing part is a shoe type pressing structure; a plurality of passages for the felt to pass through are arranged on the operation side support, an extraction seat is arranged in the passage, the extraction seat is detachably installed in the passage, and a cantilever beam connected with the transmission side support is arranged on the operation side support between the adjacent two passages.

2. A large vat hot press compact high speed paper machine according to claim 1, characterized in that: The reverse dewatering assembly comprises a dewatering box and a dewatering element, the dewatering box is arranged on the frame, the dewatering element is arranged at the bottom end of the dewatering box, a cavity is arranged in the dewatering box, a channel for water vapor flow is arranged between the cavity and the dewatering element, an adjusting assembly for adjusting the end seal of the dewatering element is arranged on the dewatering box, the dewatering box is connected with the vacuum assembly, and the gas in the dewatering box is extracted by the vacuum assembly to form negative pressure in the cavity and absorb the liquid on the paper web.

3. A large cylinder thermal press compact high speed paper machine according to claim 2, characterized in that: Two baffle plates are arranged in the dewatering box, the two baffle plates divide the cavity into a first cavity, a second cavity and a third cavity, the channels are arranged on the first cavity, the second cavity and the third cavity, flow guides are arranged on the channels, a connecting plate is arranged at the bottom end of the dewatering box, an installation strip for installing the dewatering element is arranged at the bottom end of the connecting plate, the dewatering box comprises a box body, a left baffle plate and a right baffle plate, the box body is arranged between the left baffle plate and the right baffle plate, a connecting pipe is arranged on the left baffle plate, an inspection opening and a sealing plate for sealing the inspection opening are arranged on the right baffle plate, the sealing plate is detachably installed on the right baffle plate, an air pipe is arranged on the box body, the box body is a 316L stainless steel box body, and the dewatering element is a silicon nitride dewatering element.

4. A large cylinder thermal press compact high speed paper machine according to claim 2, characterized in that: The adjusting assembly comprises a fixed part and an adjusting part, the fixed part is arranged on the dewatering box, the adjusting part is movably connected to the fixed part, and a first indicating assembly is arranged between the fixed part and the adjusting part; the fixed part comprises a fixed rod and a fixed block, the fixed rod is fixedly installed on the dewatering box, and the fixed block is arranged on the fixed rod; the adjusting part comprises an adjusting rod, a fixed plate and an end seal adjusting block, one end of the adjusting rod is connected to the fixed plate after penetrating through the fixed block, the end seal adjusting block is arranged on the fixed plate, and a handle is arranged at the other end of the adjusting rod; the first indicating assembly comprises a first scale indicating plate and a first pointer, the first scale indicating plate is arranged between the fixed block and the dewatering box, and the first pointer is arranged on the fixed plate.

5. A large cylinder thermal press compact high speed paper machine according to claim 2, characterized in that: The dehydration tank is provided with a connecting assembly connected with the rack, the connecting assembly comprises a fixing frame, a first connecting frame and a second connecting frame, the fixing frame is fixedly installed on the dehydration tank, the first connecting frame is detachably installed on the fixing frame, the fixing frame is provided with a height adjusting mechanism connected with the second connecting frame, the height adjusting mechanism comprises a fixed shaft fixedly installed on the fixing frame and a connecting rod connected with the second connecting frame, the connecting rod is provided with a vertical strip-shaped hole, the fixed shaft is provided with a locking nut, the bottom end of the connecting rod is provided with a screw rod abutting against the fixed shaft, a second indicating assembly is arranged between the connecting rod and the fixing frame, the second indicating assembly comprises a second scale indicating plate and a second pointer, the second scale indicating plate is arranged on the fixing frame, and the second pointer is arranged on the connecting rod.

6. A large cylinder thermal press compact high speed paper machine according to claim 2, characterized in that: The dehydration tank is provided with a tensioning assembly for preventing the dehydration tank from swinging, and a third indicating assembly is arranged between the tensioning assembly and the dehydration tank, the tensioning assembly comprises a base plate, a connecting rod, a connecting plate, a first pull rod and a second pull rod, the base plate and the connecting rod are fixedly installed on the dehydration tank, the first pull rod is arranged between the base plate and the connecting rod, one end of the connecting plate is connected with the connecting rod, the other end of the connecting plate is connected with one end of the second pull rod, the other end of the second pull rod is installed on the dehydration tank, the third indicating assembly comprises a third scale indicating plate and a third pointer, the third scale indicating plate is arranged on the dehydration tank, and the third pointer is arranged on the connecting plate.

7. A large cylinder thermal press compact high speed paper machine according to claim 1 characterized in that: The drying part further comprises a concrete base, one of the extension beams is provided with a first bearing rod connected with the concrete base, and the second bearing rod is arranged between the adjacent two extension beams, and the first bearing rod and the second bearing rod bear the weight of the whole drying part when the pull-out seat is taken out from the channel.

8. A large cylinder thermal press compact high speed paper machine according to claim 7, characterized in that: The upper and lower ends of the channel are both provided with an installation plate, the pull-out seat is detachably installed between the two installation plates, a locking structure is arranged between the two installation plates, the locking structure comprises a bolt and a first nut, and the bolt passes through the two installation plates and is locked by the first nut.

9. A large cylinder thermal press compact high speed paper machine according to claim 8, characterized in that: The installation plate is provided with an installation groove, the installation groove is provided with a positioning key, the pull-out seat is provided with a positioning key groove matched with the positioning key, a baffle is arranged on the installation groove or the positioning key, the baffle is detachably installed on the installation groove or the positioning key through a screw, the operating side support is provided with a threaded hole matched with the screw, and the baffle is fixed on the operating side support through the connection of the screw and the threaded hole when the pull-out seat is taken off, the pull-out seat is a stainless steel pull-out seat, the pull-out seat is a hollow structure, and the front side wall and the left and right side walls of the pull-out seat are both provided with a handle.

10. A large cylinder thermal press compact high speed paper machine according to claim 7, characterized in that: The first bearing rod and the second bearing rod are both alloy steel bearing rods, the bottom end of the first bearing rod is provided with a base, the base is arranged in a concrete base, two second nuts are arranged on the first bearing rod, the base is arranged between the two second nuts, and a pad plate is arranged on the first bearing rod between the second nuts and the base; one third nut is arranged at each end of the second bearing rod, and the second bearing rod is locked through the third nuts after passing through the extension beam.

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