CN112522984B - Shoe type presser - Google Patents
Shoe type presser Download PDFInfo
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- CN112522984B CN112522984B CN202011491231.9A CN202011491231A CN112522984B CN 112522984 B CN112522984 B CN 112522984B CN 202011491231 A CN202011491231 A CN 202011491231A CN 112522984 B CN112522984 B CN 112522984B
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- shoe
- boot
- oil
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- plate
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F3/00—Press section of machines for making continuous webs of paper
- D21F3/02—Wet presses
- D21F3/0209—Wet presses with extended press nip
- D21F3/0218—Shoe presses
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F3/00—Press section of machines for making continuous webs of paper
- D21F3/02—Wet presses
- D21F3/0209—Wet presses with extended press nip
- D21F3/0218—Shoe presses
- D21F3/0227—Belts or sleeves therefor
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F3/00—Press section of machines for making continuous webs of paper
- D21F3/02—Wet presses
- D21F3/06—Means for regulating the pressure
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F7/00—Other details of machines for making continuous webs of paper
Abstract
A shoe press belongs to the technical field of shoe presses. Including boots cover roller (7) and boots pressure roller pair (8), boots cover roller (7) include supporting beam (4) and rotatable boots cover (13) of installing on supporting beam (4), its characterized in that: the boot comprises a boot sleeve roller (7) and is characterized by further comprising boot plates (1) arranged in the boot sleeve roller (7) and hydraulic loading devices, wherein the hydraulic loading devices are arranged between the supporting beam (4) and the boot plates (1), two rows of the hydraulic loading devices are arranged along the width direction of the boot plates (1), each hydraulic loading device is connected with the corresponding side of each boot plate (1), and the two rows of the hydraulic loading devices are connected with independent oil inlet channels and are used for pressurizing two sides of each boot plate (1). The shoe press adjusts the inclination angle of the shoe plate by adjusting the pressure of the two rows of hydraulic loading devices, changes the pressure curve of the shoe press area, and obtains the required press dewatering effect on the paper web.
Description
Technical Field
A shoe press belongs to the technical field of shoe presses.
Background
The shoe press presses the paper web on the felt in a rotating motion through a shoe sleeve and a shoe pressing roller, and applies pressing force to the felt and the paper web through a pressure oil film between a fixed shoe plate and a rotating shoe sleeve in the shoe sleeve. A hydraulic cylinder is usually connected to the shoe plate of the shoe press, and applies pressure to the shoe plate through the hydraulic cylinder, and further applies pressing force to the felt and the web through an oil film between the shoe cover and the shoe plate. After the existing shoe press is produced, the shoe plate can only lift, so that the pressing force of the shoe plate to the paper web can only be changed, the pressure curve can not be changed, the pressing effect of the paper web can not be changed, and the pressing effect of the existing shoe press to the paper web can not be adjusted.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the defects of the prior art are overcome, and the shoe press capable of respectively pressurizing two sides of the shoe plate so as to adjust the inclination angle of the shoe plate and further adjust the pressure curve is provided.
The technical scheme adopted by the invention for solving the technical problems is as follows: this shoe press presses roller, presses the pair roller including boots cover roller and boots, and the boots cover roller includes supporting beam and the rotatable boots cover of installing on the supporting beam, its characterized in that: the hydraulic loading device is arranged between the supporting beam and the shoe plate, two rows of hydraulic loading devices are arranged along the width direction of the shoe plate, each hydraulic loading device is connected with the corresponding side of the shoe plate, and the two rows of hydraulic loading devices are connected with independent oil inlet channels respectively and pressurize two sides of the shoe plate respectively.
Preferably, the hydraulic loading means adjacent the web output side of the shoe plate is rotatably connected to the corresponding side of the shoe plate. The hydraulic loading device is rotatably connected with the shoe plate, so that the hydraulic loading device can be prevented from hindering the adjustment of the angle of the shoe plate.
Preferably, the hydraulic loading device comprises a loading piston, a hydraulic cavity with a downward opening is formed in the lower side of the supporting beam, the upper portion of the loading piston is slidably arranged in the hydraulic cavity, the lower end of the loading piston is connected with the shoe plate, and the oil inlet channel is communicated with the upper portion of the hydraulic cavity. The hydraulic oil enters the hydraulic cavity and pushes the loading piston to move downwards, and therefore the shoe plate is pressurized.
Preferably, a spring is arranged between the loading piston and the supporting beam, the spring is arranged in the supporting beam, and the spring is arranged between the supporting beam and the loading piston. The spring can assist the boot plate to promote and reset, places the supporting beam in the spring in, can avoid the work of spring to receive the interference, guarantees the pressurization promotion that the boot plate can be stable, makes boot plate work more stable, compares with the spring is external, simple structure, and processing is convenient, and occupation space is few.
Preferably, the lower part of the paper web input side of the shoe plate is provided with a pressurizing groove, the pressurizing groove is arranged along the length direction of the shoe plate, and the shoe plate is provided with an oil inlet hole communicated with the pressurizing groove. Can carry out the pressure boost to shoe board and shoe cover clearance through the pressure boost groove, make and be close to the nip paper web entering side and increase hydraulic oil to the shoe board nip, change the pressure curve, promote the compressive force, and then improved the press dehydration effect.
Preferably, a plurality of oil inlet holes are arranged at intervals along the length direction of the boot plate. The oil inlet hole is provided with a plurality of along the length direction interval of boots board, guarantees along the length direction of boots board, and the pressure in the pressure boost groove is invariable.
Preferably, the shoe sleeve roller is connected with an air blowing device. The blast air device can round the roller drum of the shoe sleeve, and the running stability of the shoe sleeve is ensured.
Preferably, the air blowing device comprises an oil tank, an oil-gas separation device, an oil return pipe and an air inlet device, wherein an input port of the oil return pipe extends into the bottom of the boot sleeve roller, an output port of the oil return pipe is communicated with an input port of the oil-gas separation device, a lubricating oil outlet of the oil-gas separation device is communicated with the oil tank, an input port of the air inlet device is communicated with the top of the oil tank, an output port of the air inlet device is communicated with the boot sleeve roller, and the oil tank is connected with an air filter. The input port that returns oil pipe stretches into boots cover roller bottom, directly extrudees lubricating oil through hot blast blowpipe, and the lubricating oil of extrusion is through the oil-gas separation device separation back, and lubricating oil enters into the oil tank in, avoids lubricating oil to carry gaseous entering into the oil tank and causes lubricating oil to pollute, need not set up the scraper in the boots cover roller and connect the oil box, can enough avoid causing the damage to boots cover roller inner wall, makes boots cover roller simple structure again, makes the operation of boots cover roller more stable.
Preferably, the air inlet device comprises a circulating blower and an air inlet blower, an input port of the air inlet blower is communicated with the oil tank, an output port of the air inlet blower is communicated with the shoe sleeve roller, an input port of the circulating blower is communicated with a gas outlet of the oil-gas separation device, and an output port of the circulating blower is communicated with the shoe sleeve roller. The air inlet blower can send gas in the oil tank into the shoe sleeve roller to enable the shoe sleeve roller to be round, the circulating blower extracts gas separated by the oil-gas separation device and sends the gas into the shoe sleeve roller, and when the shoe sleeve roller normally operates, the air inlet blower basically does not need to work, internal circulation of the gas in the shoe sleeve roller can be achieved by means of the work of the circulating blower, and the pressure in the shoe sleeve roller is kept constant.
The shoe press is based on the principle of dynamic pressure support, a paper web is pressurized by utilizing an oil film between a shoe plate and a shoe sleeve, a gap between the shoe plate and the shoe sleeve is a shoe press area, the pressure curve of the shoe press area can be changed by adjusting the ratio of the angle of the shoe plate, and further the required press dewatering effect can be obtained.
Compared with the prior art, the invention has the beneficial effects that:
the shoe sleeve roller of the shoe type presser is matched with the shoe pressing double rollers to press a paper web, the two rows of hydraulic loading devices are respectively connected with independent oil inlet channels, so that the two sides of the shoe plate are respectively pressurized, the two rows of hydraulic loading devices are symmetrically arranged on the two sides of the central line of the shoe sleeve roller and the shoe pressing double rollers, the inclination angle of the shoe plate is adjusted by adjusting the pressurizing force of the two rows of hydraulic loading devices, the pressure curve of the shoe pressing area is changed, and the required pressing and dewatering effect on the paper web is obtained.
Drawings
Fig. 1 is a front cross-sectional view of a shoe press.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Figure 3 is a left side cross-sectional schematic view of a shoe cover roll.
Fig. 4 is a partially enlarged view of fig. 3 at B.
Fig. 5 is a schematic mechanism diagram of the blower device.
Figure 6 is a pressure profile of the shoe nip.
Fig. 7 is a front sectional view of the boot plate 1.
In the figure: 1. the device comprises a boot plate 101, a detection channel 2, a loading piston 3, a spring 4, a supporting beam 401, an oil inlet branch channel 402, an oil inlet main channel 403, a hydraulic cavity 5, a ball head 6, a sealing ring 7, a boot sleeve roller 8, a boot pressure pair roller 9, a pressurizing groove 10, an oil inlet hole 11, an oil inlet 12, a fixed disc 13, a boot sleeve 14, an oil return pipe 15, a pressure sensor 16, an oil-gas separator 17, an oil tank 18, an air filter 19, an air inlet blower 20, a circulating blower 21, a blast pipe 22 and an air guide pipe.
Detailed Description
Fig. 1 to 7 are preferred embodiments of the present invention, and the present invention will be further described with reference to fig. 1 to 7.
The utility model provides a shoe type squeezer, including boots cover roller 7 and boots pressure pair roller 8, boots cover roller 7 includes supporting beam 4 and the rotatable boots cover 13 of installing on supporting beam 4, still including setting up shoe board 1 and the hydraulic loading device in boots cover roller 7, hydraulic loading device sets up between supporting beam 4 and shoe board 1, hydraulic loading device is provided with two rows along the width direction of shoe board 1, each hydraulic loading device links to each other with the corresponding side of shoe board 1 respectively, two rows of hydraulic loading devices are connected with independent oil feed passageway respectively to pressurize the both sides of shoe board 1 respectively. The shoe sleeve roller 7 of the shoe type presser is matched with the shoe pressing double roller 8 to press the paper web, the two rows of hydraulic loading devices are respectively connected with independent oil inlet channels, so that the two sides of the shoe plate 1 are respectively pressurized, the two rows of hydraulic loading devices are symmetrically arranged on the two sides of the central connecting line of the shoe sleeve roller 7 and the shoe pressing double roller 8, the inclination angle of the shoe plate 1 is adjusted by adjusting the pressurizing force of the two rows of hydraulic loading devices, the pressure curve of the shoe pressing area is changed, and the required pressing and dewatering effect on the paper web is obtained.
The present invention is further described with reference to the following detailed description, however, it should be understood by those skilled in the art that the detailed description given herein with respect to the accompanying drawings is for better explanation and that the present invention is not necessarily limited to the specific embodiments, but rather, for equivalent alternatives or common approaches, may be omitted from the detailed description, while still remaining within the scope of the present application.
Specifically, the method comprises the following steps: as shown in FIGS. 1-4: the shoe cover roller 7 comprises a supporting beam 4, a shoe cover 13 and a fixed disc 12, the shoe cover 13 is rotatably arranged on the supporting beam 4, the shoe cover roller 7 is horizontally arranged, the shoe press pair roller 8 is arranged below the shoe cover roller 7, and the paper web passes between the shoe cover roller 7 and the shoe press pair roller 8. The fixed plates 12 are arranged at two ends of the shoe sleeve 13, the shoe sleeve 13 is fixedly connected with the fixed plates 12, and the fixed plates 12 are rotatably arranged on the supporting beam 4.
The shoe plate 1 is arranged in the shoe sleeve roll 7, the shoe plate 1 is positioned at the lower side of the support beam 4, and the gap between the shoe plate 1 and the shoe sleeve 13 of the shoe sleeve roll 7 is a shoe nip. The hydraulic loading device is provided at the lower portion of the support beam 4, is connected to the shoe plate 1, and pressurizes the shoe plate 1.
The hydraulic loading devices are arranged in two rows at intervals along the width direction of the boot plate 1, and a plurality of hydraulic loading devices are uniformly distributed at intervals along the length direction of the boot plate 1. The oil inlet channels are divided into two groups, each liquid pressure discharging loading device is connected with the oil inlet channel on the corresponding side, any one row of hydraulic loading devices is rotatably connected with the shoe plate 1, in the embodiment, the paper web output side of the shoe plate 1 is rotatably connected with the hydraulic loading devices on the corresponding sides, so that the inclination angle of the shoe plate 1 can be adjusted, the pressure curve of the shoe pressure area is changed, and the required press dewatering effect is achieved.
The hydraulic loading device comprises a loading piston 2, a round blind hole is formed in the lower side of a supporting beam 4 to form a hydraulic cavity 403, and an inward flanging is arranged around the lower end of the hydraulic cavity 403. The length of the loading piston 2 is greater than that of the hydraulic pressure chamber 403, the diameter of the upper end of the loading piston 2 is greater than that of the lower end, and an actuator is formed at the lower portion of the loading piston 2. The upper part of the loading piston 2 is slidably arranged in the hydraulic cavity 403, the middle part of the hydraulic cavity 403 is provided with an installation part with the diameter smaller than that of the upper end, a sealing ring 6 is arranged between the installation part and the loading piston 2, and the sealing ring 6 is arranged on the installation part to enable the loading piston 2 to be connected with the installation part in a sealing manner.
A spring 3 is provided between the loading piston 2 and the support beam 4, and the spring 3 is built in the support beam 4. The spring 3 is sleeved outside the executing part of the piston 2, the lower end of the spring 3 is supported on the inward turned edge of the hydraulic cavity 403, the upper end of the spring 3 is supported on the shoulder part of the loading piston 2, the spring 3 is in a compressed state, and the spring 3 can push the loading piston 2 to lift and reset so as to lift and reset the shoe plate 1.
Each group of oil inlet channels comprises an oil inlet main channel 402 and an oil inlet branch channel 401, the oil inlet branch channels 401 are in one-to-one correspondence with the hydraulic cavities 403, only one oil inlet main channel 402 is provided, the oil inlet main channel 402 is inverted T-shaped, the end of the vertical part of the oil inlet main channel 402 is positioned at the top of the supporting beam 4, the horizontal parts are arranged on the upper sides of the hydraulic cavities 403 on the corresponding sides at intervals, and the two ends of the horizontal part are sealed. The oil inlet branch channel 401 is vertically arranged, the lower end of the oil inlet branch channel 401 is communicated with the corresponding hydraulic cavity 403, and the upper end of the oil inlet branch channel 401 is communicated with the horizontal part of the oil inlet main channel 402 on the corresponding side, so that lubricating oil can be conveniently introduced into each hydraulic cavity 403 at the same time, and the pressure of hydraulic oil in each row of hydraulic cavities 403 is equal.
The lower end of the piston 2 close to the paper output side of the shoe plate 1 is rotatably connected with the shoe plate 1 through a ball head 5, and the inclination angle of the shoe plate 1 can be adjusted by adjusting the pressure in the hydraulic chambers 403 at the two sides, so that the pressure curve of the shoe press area is changed, and the required press dewatering effect is achieved. Both rows of pistons 5 may be rotatably connected to the shoe plate 1 by means of ball heads 5.
The downside of shoe board 1 is provided with pressure boost groove 9, and pressure boost groove 9 sets up in the paper web input side of shoe board 1, and pressure boost groove 9 sets up along the length direction of shoe board 1 to can increase the pressure to the paper web input side of shoe press district, be close to the press district paper web and carry the side to increase hydraulic oil to the press district of shoe board 1, change the pressure curve, promote the squeezing force, improve and squeeze dewatering effect. Be provided with the inlet port 10 that is linked together with pressure boost groove 9 on the boot board 1, inlet port 10 has a plurality ofly along the length direction interval equipartition of pressure boost groove 9 to guarantee that the pressure of the hydraulic oil in the pressure boost groove 9 is invariable. The oil inlet hole 10 is horizontal 'L' shape, and the end of the vertical portion of oil inlet hole 10 is linked together with pressure boost groove 9, and the end setting of the horizontal part of oil inlet hole 10 is at the lateral part of boots board 1, and the diameter of the end of the vertical portion of oil inlet hole 10 is greater than the diameter of the other end and forms oil inlet 11, encircles 11 inner walls of oil inlet and is provided with the screw thread, conveniently is connected with high pressure fuel pipe.
The pressurizing grooves 9 can also be provided with a plurality of sections along the length direction of the boot plate 1, every two adjacent sections of the pressurizing grooves 9 are mutually separated, and each section of the pressurizing groove 9 is connected with an oil inlet hole 10 so as to facilitate the processing of the pressurizing groove 9.
As shown in fig. 5: the boot sleeve roller 7 is further connected with a blower device, the blower device comprises an oil tank 17, an oil-gas separation device, an oil return pipe 14 and an air inlet device, an input port of the oil return pipe 14 extends into the bottom of the boot sleeve roller 7, an output port of the oil return pipe 14 is communicated with an input port of the oil-gas separation device, a lubricating oil outlet of the oil-gas separation device is communicated with the oil tank 17, an input port of the air inlet device is communicated with the top of the oil tank 17, an output port of the air inlet device is communicated with the boot sleeve roller 7, and the oil tank 17 is connected with an air filter 18. The input port that returns oil pipe 14 stretches into boots cover roller 7 bottom, directly extrudes lubricating oil through hot blast blowpipe apparatus, and the lubricating oil of extrusion is through the oil-gas separation device separation back, and lubricating oil enters into oil tank 17 in, avoids lubricating oil to carry gaseous entering oil tank 17 and cause lubricating oil to pollute, need not set up the scraper in the boots cover roller 7 and connect the oil box, can enough avoid causing the damage to 13 inner walls of boots cover, makes simple structure in the boots cover roller 7 again, makes boots cover roller 7 operation more stable.
The boot sleeve 13 is a rubber cylinder with two open ends, the boot sleeve 13 is horizontally arranged, the two ends of the boot sleeve 13 are respectively provided with a fixed disc 12, the boot sleeve 13 and the fixed discs 12 are coaxially arranged, the two ends of the boot sleeve 13 are respectively fixedly connected with the fixed discs 12 on the corresponding sides, and a closed space is formed in the boot sleeve 13.
The boot sleeve roller 7 is arranged on the supporting beam 4, the supporting beam 4 is horizontally arranged, the fixed disks 12 at two ends of the boot sleeve roller 7 are rotatably arranged on the supporting beam 4, and two ends of the supporting beam 4 extend out of the fixed disks 12 at corresponding sides so as to support the supporting beam 4.
In this embodiment, the oil-gas separation device is an oil-gas separator 16, an input port of the oil-gas separator 16 is communicated with an inner cavity of the shoe sleeve roller 7 through an oil return pipe 14, an input port of the oil return pipe 14 extends to the bottom of the shoe sleeve roller 7 after penetrating through the support beam 4, an output port of the oil return pipe 14 is communicated with an input port of the oil-gas separator 16, a lubricating oil outlet of the oil-gas separator 16 is communicated with an oil tank 17, and the separated lubricating oil is sent into the oil tank 17. An air cleaner 18 is connected to the oil tank 17.
The air inlet device comprises an air inlet blower 19 and a circulating blower 20, an input port of the air inlet blower 19 is communicated with the top of the oil tank 17, an output port of the air inlet blower 19 is communicated with an inner cavity of the boot sleeve roller 7 through a blast pipe 21, an input port of the blast pipe 21 is communicated with an output port of the air inlet blower 19, and an output port of the blast pipe 21 penetrates through the support beam 4 and then extends into the boot sleeve roller 7 and is communicated with the middle of the boot sleeve roller 7. The input port of the circulation blower 20 is communicated with the gas outlet of the oil-gas separator 16 through an induced draft pipe 22, and the output port of the circulation blower 20 is communicated with a blast pipe 21. Both the intake air blower 19 and the circulation air blower 20 may be replaced by a pump.
The shoe sleeve roller 7 is also connected with a pressure sensor 15, the pressure sensor 15 is connected with the shoe sleeve roller 7 through a detection pipe, and the detection pipe penetrates through the supporting beam 4 and then extends into the shoe sleeve roller.
The working process of the air blowing device is as follows: when the operation is started, the air intake blower 19 operates to draw air in the oil tank 17 and send the air into the shoe cover roller 7 to round the shoe cover roller 7. When the air-inlet air blower 19 works normally, lubricating oil in the boot sleeve roller 7 is pressed out through the oil return pipe 14, the lubricating oil enters the oil-gas separator 16 for separation, the lubricating oil enters the oil tank 17, and air enters the boot sleeve roller again through the circulating air blower 20. The pressure sensor 15 monitors the pressure in the boot sleeve roller in real time, when the pressure in the boot sleeve roller 7 is too high, the rotating speed of the air inlet blower 19 is slowed down or stopped, namely, when the boot sleeve roller works normally, the pressure in the boot sleeve roller 7 can be kept constant only through the circulating air blower 20, and the air inlet blower 19 does not need to work basically.
As shown in fig. 6: the hydraulic loading devices mounted on the support beam 4 are generally arranged in a single row, and the hydraulic loading devices are mounted in the plane of the axes of the two roll support beams. The ratio C = h1/h2 of the oil film thickness h1 at the big end of the tapering seam (the end where the felt and web enter the shoe nip) to h2 at the small end (the end where the felt and web leave the shoe nip) is an important parameter. When other factors determining the dynamic pressure bearing force, such as the viscosity of the lubricating oil, the sliding speed of the shoe sleeve 13 with respect to the shoe plate 1, the nip width and length are determined, the magnitude of the value C determines the pressure curve of the shoe nip, the highest point of the curve, the area under the curve, i.e., the linear pressure and the point of application of the resultant force. Under the condition that C is more than or equal to 2.2, C is small, the area under the curve is large, the bearing capacity is large, and larger pressurizing load can be borne; c is large, the highest point of the curve is close to the outlet side of the press nip, namely the side h2, and the paper web is quickly reduced to atmospheric pressure from the highest pressure, so that the existing press dryness is favorably maintained, and the rewetting is avoided.
The inclination angle of the shoe plate 1 is adjusted by pressurizing the two rows of hydraulic loading devices, namely the sizes of h1 and h2 are adjusted, so that the C value can be adjusted, the distance between the highest point P3 of the curve and the outlet side of the pressing area can be further adjusted, the dryness of the pressed paper web is adjusted, and the adjustment is convenient. The pressure curve is now the lower curve, O-P2-P3-L.
By means of the possible pressurisation of the web-input side of the shoe nip by the pressure-increasing vat 9, the above-mentioned advantages are retained, but the pressure at P2 can be increased to a given pressure P1, in which case the following advantages are obtained: 1) the area under the curve of O-P1-P3-L is increased, and the squeezing force is improved by more than 15 percent. When the squeezing force is the same, the highest pressure is reduced; 2) the pressure curve is more gentle, the paper web is pressed lightly and softly, the bulk is good (the density is small), have improved the blanket life at the same time; 3) the pressure in the shoe sleeve roller is rapidly reduced from high pressure, and the rewetting of the paper web is reduced.
As shown in fig. 7: in order to facilitate dynamic display of a pressure curve, a plurality of pressure sensors 15 are installed in the width range of the pressure area, the pressure sensors 15 are installed on the shoe plate 1, a plurality of pressure sensors are arranged at intervals along the width direction of the shoe plate 1, and the pressure of each point of the shoe pressure area can be monitored in real time and displayed on a computer. The pressure values of all points can be directly displayed on a computer to form a curve, so that the observation is convenient, the display is visual, and the adjustment is convenient. A plurality of detection channels 101 are arranged on the boot plate 1 at intervals along the width direction, and the detection channels 101 are communicated with the pressure sensor 15 through pipelines, so that the pressure of a pressing area can be monitored in real time conveniently.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (4)
1. A shoe press comprising a shoe cover roll (7) and a shoe press pair roll (8), the shoe cover roll (7) comprising a support beam (4) and a shoe cover (13) rotatably mounted on the support beam (4), characterized in that: the boot comprises boot sleeves (7), and is characterized by further comprising boot plates (1) arranged in the boot sleeve rollers (7) and hydraulic loading devices, wherein the hydraulic loading devices are arranged between the supporting beams (4) and the boot plates (1), two rows of the hydraulic loading devices are arranged along the width direction of the boot plates (1), each hydraulic loading device is connected with the corresponding side of each boot plate (1), and the two rows of the hydraulic loading devices are connected with independent oil inlet channels and are used for pressurizing two sides of each boot plate (1); the lower part of the paper web input side of the shoe plate (1) is provided with a pressurizing groove (9), the pressurizing groove (9) is arranged between a paper web inlet and the central line of the supporting beam (4), the pressurizing groove (9) is arranged along the length direction of the shoe plate (1), and the shoe plate (1) is provided with an oil inlet hole (10) communicated with the pressurizing groove (9); the boot sleeve roller is connected with a blast device; the air blowing device comprises an oil tank (17), an oil-gas separation device, an oil return pipe (14) and an air inlet device, wherein an input port of the oil return pipe (14) extends into the bottom of the boot sleeve roller, an output port of the oil return pipe (14) is communicated with an input port of the oil-gas separation device, a lubricating oil outlet of the oil-gas separation device is communicated with the oil tank (17), an input port of the air inlet device is communicated with the top of the oil tank (17), an output port of the air inlet device is communicated with the boot sleeve roller (7), and the oil tank (17) is connected with an air filter (18); the air inlet device comprises a circulating blower (20) and an air inlet blower (19), an input port of the air inlet blower (19) is communicated with the oil tank (17), an output port of the air inlet blower (19) is communicated with the boot sleeve roller (7), an input port of the circulating blower (20) is communicated with a gas outlet of the oil-gas separation device, and an output port of the circulating blower (20) is communicated with the boot sleeve roller (7); the boot sleeve roller (7) is arranged above the boot pressing pair roller (8); the hydraulic loading device close to the paper output side of the shoe plate (1) is rotatably connected with the corresponding side of the shoe plate (1).
2. The shoe press of claim 1, wherein: the hydraulic loading device comprises a loading piston (2), a hydraulic cavity (403) with a downward opening is formed in the lower side of a supporting beam (4), the upper portion of the loading piston (2) is slidably arranged in the hydraulic cavity (403), the lower end of the loading piston (2) is connected with a boot plate (1), and an oil inlet channel is communicated with the upper portion of the hydraulic cavity (403).
3. The shoe press of claim 2, wherein: a spring (3) is arranged between the loading piston (2) and the supporting beam (4), the spring (3) is arranged in the supporting beam (4), and the spring (3) is arranged between the supporting beam (4) and the loading piston (2).
4. The shoe press of claim 1, wherein: the oil inlet holes (10) are arranged at intervals along the length direction of the boot plate (1).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011491231.9A CN112522984B (en) | 2020-12-17 | 2020-12-17 | Shoe type presser |
| PCT/CN2021/072673 WO2022126817A1 (en) | 2020-12-17 | 2021-01-19 | Shoe press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011491231.9A CN112522984B (en) | 2020-12-17 | 2020-12-17 | Shoe type presser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112522984A CN112522984A (en) | 2021-03-19 |
| CN112522984B true CN112522984B (en) | 2022-06-07 |
Family
ID=75001149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011491231.9A Active CN112522984B (en) | 2020-12-17 | 2020-12-17 | Shoe type presser |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112522984B (en) |
| WO (1) | WO2022126817A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114561826B (en) * | 2022-04-14 | 2023-09-08 | 山鹰国际控股股份公司 | Paper machine boots compression roller |
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| US5110417A (en) * | 1989-12-21 | 1992-05-05 | Tampella Ab | Extended press zone with shallow hydrodynamic pocket |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN112522984A (en) | 2021-03-19 |
| WO2022126817A1 (en) | 2022-06-23 |
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Application publication date: 20210319 Assignee: Zibo Taiding Paper Machinery Co.,Ltd. Assignor: Zibo Taiding Machinery Technology Co.,Ltd. Contract record no.: X2023980041683 Denomination of invention: A shoe press Granted publication date: 20220607 License type: Exclusive License Record date: 20230912 |