阅读说明：本技术 一种基于旋筛且磨压可调的旋辊研磨式磨浆设备 (Rotary roller grinding type pulping equipment based on rotary screen and adjustable grinding pressure ) 是由 安延涛 杨玉娥 张义花 赵东 于 2020-03-30 设计创作，主要内容包括：本发明提供了一种基于旋筛且磨压可调的旋辊研磨式磨浆设备,主要包括磨浆生成装置、动力驱动装置,由筛筒、筛鼓、筛转子、旋翼、上转盖和下转盖组成的旋压筛浆装置,由磨盘A、磨盘B和压辊组成的旋辊研磨装置,和由弹簧A、导向筒、弹簧B、伸缩套和顶杆组成的磨压调节装置。其特点是先筛后磨,将旋压磨和辊压磨相结合,旋、辊压磨的磨压可调。本发明通过磨浆生成装置实现磨浆的生成与输出,通过动力驱动装置为设备提供持续驱动力,通过旋压筛浆装置实现磨浆前料浆的旋压筛选,通过旋辊研磨装置实现对料浆进行旋压和辊压研磨,通过磨压调节装置实现磨盘A和磨盘B间磨压的调节。(The invention provides rotary-roller grinding type pulping equipment based on a rotary screen and adjustable in grinding pressure, which mainly comprises a pulping generation device, a power driving device, a rotary-pressure pulp screening device consisting of a screen cylinder, a screen drum, a screen rotor, a rotor wing, an upper rotary cover and a lower rotary cover, a rotary-roller grinding device consisting of a grinding disc A, a grinding disc B and a press roller, and a grinding pressure adjusting device consisting of a spring A, a guide cylinder, a spring B, a telescopic sleeve and a push rod. The method is characterized in that the grinding is carried out after the screening, the spinning grinding and the rolling grinding are combined, and the grinding pressure of the spinning and rolling grinding is adjustable. According to the invention, the generation and output of the grinding is realized through the grinding generation device, the continuous driving force is provided for the equipment through the power driving device, the spinning screening of slurry before grinding is realized through the spinning pulp screening device, the spinning and rolling grinding of the slurry is realized through the rotary roller grinding device, and the grinding pressure adjustment between the grinding disc A and the grinding disc B is realized through the grinding pressure adjusting device.)

1. A rotary roller grinding type pulping equipment based on rotary screen and adjustable grinding pressure mainly comprises a pulping generation device, a power driving device, a rotary roller pulp screening device, a rotary roller grinding device and a grinding pressure adjusting device, wherein the power driving device is positioned below the pulping generation device; the method is characterized in that: the grinding generation device mainly comprises a grinding cylinder and a cylinder cover, wherein the grinding cylinder is of a blind cylinder structure, a grinding outlet is formed in the inner side of the bottom end of the grinding cylinder, 4 supporting columns which are uniformly distributed in the circumferential direction are arranged on the outer side of the bottom end of the grinding cylinder, the cylinder cover is installed on the grinding cylinder through 4 screws which are uniformly distributed in the circumferential direction, and 2 rectangular feed inlets are symmetrically formed in the cylinder cover; the power driving device mainly comprises a motor and a main shaft, the motor is arranged right below the charging barrel, the main shaft is arranged on the motor, the main shaft sequentially penetrates through the bottom end of the grinding barrel and the barrel cover from bottom to top, a roller bearing, a bearing cover and a sealing ring are arranged at the joint of the main shaft and the bottom end of the grinding barrel, and the roller bearing is arranged at the joint of the main shaft and the barrel cover; the rotary-pressing pulp screening device mainly comprises a screen cylinder, a screen rotor, a rotor wing, an upper rotating cover and a lower rotating cover, wherein the screen cylinder is arranged in a grinding cylinder; the rotary roller grinding device mainly comprises a grinding disc A, a grinding disc B and a press roller, wherein the lower end face of the grinding disc A is provided with roller holes, the grinding disc A is installed on a main shaft through a flat key, the grinding disc B is sleeved on the main shaft in an empty mode, the grinding disc A is positioned right above the grinding disc B, the press roller is positioned in the grinding disc A, the inner side of the grinding disc B is provided with filter holes, the outer side of the upper end face of the grinding disc B is provided with a blocking cylinder through screws, the lower end face of the grinding disc B is provided with 4 rod holes which are uniformly distributed in the circumferential direction, the rod holes; the grinding pressure adjusting device mainly comprises a spring A, a guide cylinder, a spring B, a telescopic sleeve and an ejector rod, wherein the guide cylinder is welded in a roller hole, the upper end and the lower end of the spring A are respectively connected with the roller hole and the upper end surface of a roller frame, the upper end and the lower end of the telescopic sleeve and the spring B are respectively connected with the lower end surface of a grinding disc B and the upper end surface of a bearing seat at the bottom end of the grinding cylinder, the spring B is positioned on the inner side of the telescopic sleeve, the ejector rod is installed in the roller hole of the grinding disc.

2. The rotary screen-based, adjustable refiner apparatus of claim 1 wherein: the main shaft is a 7-section stepped shaft, a sealing ring and a roller bearing are arranged at the joint of the main shaft and the screen drum from top to bottom, and an upper sealing ring and a lower sealing ring are arranged at the joint of the main shaft and the grinding disc B.

3. The rotary screen-based, adjustable refiner apparatus of claim 1 wherein: the screen drum is arranged on the inner wall of the grinding drum through 2 layers of 4 screws which are uniformly distributed in the circumferential direction, a material residue outlet is formed in the bottom end of the screen drum on the inner side of the screen drum, the material residue outlet extends out of the wall of the grinding drum, a slurry outlet is formed in the bottom end of the screen drum on the outer side of the screen drum, and the bottom end of the slurry outlet is close to the outer side of the upper end face of the grinding disc; the upper rotating cover and the lower rotating cover are respectively installed on the main shaft through flat keys, the sieve rotor is of a through cylindrical structure, and the upper rotating cover and the lower rotating cover are respectively installed on the upper end face and the lower end face of the sieve rotor through 4 screws which are uniformly distributed in the circumferential direction; 3 layers of rotor wings are arranged on the sieve rotor at equal intervals from top to bottom, and 6 rotor wings are uniformly distributed in the circumferential direction on each layer; 9 layers of sieve pores are arranged on the screen cylinder at equal intervals from top to bottom, the number of each layer of sieve pores is 30, the sieve pores are uniformly distributed in the circumferential direction, and the sieve pores are of parallel pore structures.

4. The rotary screen-based, adjustable refiner apparatus of claim 1 wherein: the lower end face of the grinding disc A is provided with 3 layers of roller holes from inside to outside, the roller holes are of a cuboid blind hole structure, the number of the 1 st layer of roller holes is 8, the roller holes are circumferentially and uniformly distributed, the number of the 2 nd layer of roller holes is 12, the roller holes are circumferentially and uniformly distributed, and the number of the 3 rd layer of roller holes is 16, and the roller holes are circumferentially and uniformly distributed; the number of the filter holes on the inner side of the grinding disc B is 8, and the filter holes are uniformly distributed in the circumferential direction; the two sides of each roller frame are respectively provided with a press roller, a ball is arranged between each press roller and the roller frame, the roller frame is connected with a grinding disc A through a spring A, and the upper end of the roller frame and the spring A are arranged in the guide cylinder.

5. The rotary screen-based, adjustable refiner apparatus of claim 1 wherein: the upper end and the lower end of the telescopic sleeve are fixed by screws, and the telescopic sleeve is made of rubber; the upper end of the ejector rod is provided with a cushion pad, the outer side of the bottom end of the grinding cylinder close to the ejector rod is provided with a scale through a screw, and the scale is provided with scales.

Technical Field

The invention relates to rotary-roller grinding type pulping equipment based on a rotary screen and adjustable in grinding pressure, in particular to rotary-roller grinding type pulping equipment which realizes generation and output of pulping by a pulping generation device, provides continuous driving force for the equipment by a power driving device, realizes spinning screening of pulp before pulping by a spinning pulp screening device, realizes spinning and rolling grinding of the pulp by a rotary-roller grinding device, and realizes adjustment of the grinding pressure between a grinding disc A and a grinding disc B by a grinding pressure adjusting device, and belongs to the technical research and development field of the pulping equipment.

Background

The refiner is one of the most commonly used paper making equipments in paper making industry, and mainly makes the pulp impact and extrude each other in the gap between two millstones through the rotation of the two millstones, and under the action of shearing and grinding, the pulp is ground from coarse to fine, and the binding capacity between fibers in the pulp is enhanced. However, the following problems are caused by the working mode and structural singleness of the existing pulping machine: firstly, the grinding efficiency is low, and because most of the grinding discs are of fixed structures, the upper grinding disc cannot contact and extrude slurry along with the reduction of grinding slurry in the later grinding period, so that insufficient grinding is easily caused, the grinding efficiency is reduced, larger crushed materials exist in the grinding process, and the grinding quality is reduced; secondly, the grinding quality is low, the size of paper pulp is easy to be uneven in grinding, and extremely large particles exist in the paper pulp sometimes, so that the grinding quality is reduced, and the grinding disc is easy to wear; thirdly, the fiber mat is not easy to form, the fiber state is not good, the flexibility is low, and the bonding force between the fibers is not ideal enough.

Therefore, aiming at the problems of low refining efficiency, low refining quality, difficult formation of fiber mats and the like commonly existing in the prior refiner in use, the refining equipment with high refining efficiency, high refining quality and easy formation of fiber mats is designed by comprehensively considering the working mode and the structure of the refiner.

Disclosure of Invention

Aiming at the problems of low pulping efficiency, low pulping quality, difficult formation of a fiber pad and the like commonly existing in the use of the existing pulping machine, the invention provides the rotary-roller grinding type pulping equipment which can effectively solve the problems and is based on a rotary screen and adjustable in grinding pressure.

The invention relates to a rotary-roller grinding type pulping equipment based on a rotary screen and adjustable grinding pressure, which adopts the following technical scheme:

a rotary roller grinding type pulping equipment based on rotary screen and adjustable grinding pressure mainly comprises a pulping generation device, a power driving device, a rotary roller pulp screening device, a rotary roller grinding device and a grinding pressure adjusting device, wherein the power driving device is positioned below the pulping generation device; the grinding generation device mainly comprises a grinding cylinder and a cylinder cover, wherein the grinding cylinder is of a blind cylinder structure, a grinding outlet is formed in the inner side of the bottom end of the grinding cylinder, 4 supporting columns which are uniformly distributed in the circumferential direction are arranged on the outer side of the bottom end of the grinding cylinder, the cylinder cover is installed on the grinding cylinder through 4 screws which are uniformly distributed in the circumferential direction, and 2 rectangular feed inlets are symmetrically formed in the cylinder cover; the power driving device mainly comprises a motor and a main shaft, the motor is arranged right below the charging barrel, the main shaft is arranged on the motor, the main shaft sequentially penetrates through the bottom end of the grinding barrel and the barrel cover from bottom to top, a roller bearing, a bearing cover and a sealing ring are arranged at the joint of the main shaft and the bottom end of the grinding barrel, and the roller bearing is arranged at the joint of the main shaft and the barrel cover; the rotary-pressing pulp screening device mainly comprises a screen cylinder, a screen rotor, a rotor wing, an upper rotating cover and a lower rotating cover, wherein the screen cylinder is arranged in a grinding cylinder; the rotary roller grinding device mainly comprises a grinding disc A, a grinding disc B and a press roller, wherein the lower end face of the grinding disc A is provided with roller holes, the grinding disc A is installed on a main shaft through a flat key, the grinding disc B is sleeved on the main shaft in an empty mode, the grinding disc A is positioned right above the grinding disc B, the press roller is positioned in the grinding disc A, the inner side of the grinding disc B is provided with filter holes, the outer side of the upper end face of the grinding disc B is provided with a blocking cylinder through screws, the lower end face of the grinding disc B is provided with 4 rod holes which are uniformly distributed in the circumferential direction, the rod holes; the grinding pressure adjusting device mainly comprises a spring A, a guide cylinder, a spring B, a telescopic sleeve and an ejector rod, wherein the guide cylinder is welded in a roller hole, the upper end and the lower end of the spring A are respectively connected with the roller hole and the upper end surface of a roller frame, the upper end and the lower end of the telescopic sleeve and the spring B are respectively connected with the lower end surface of a grinding disc B and the upper end surface of a bearing seat at the bottom end of the grinding cylinder, the spring B is positioned on the inner side of the telescopic sleeve, the ejector rod is installed in the roller hole of the grinding disc.

The main shaft is a 7-section stepped shaft, a sealing ring and a roller bearing are arranged at the joint of the main shaft and the screen drum from top to bottom, and an upper sealing ring and a lower sealing ring are arranged at the joint of the main shaft and the grinding disc B.

The screen drum is arranged on the inner wall of the grinding drum through 2 layers of 4 screws which are uniformly distributed in the circumferential direction, a material residue outlet is formed in the bottom end of the screen drum on the inner side of the screen drum, the material residue outlet extends out of the wall of the grinding drum, a slurry outlet is formed in the bottom end of the screen drum on the outer side of the screen drum, and the bottom end of the slurry outlet is close to the outer side of the upper end face of the grinding disc; the upper rotating cover and the lower rotating cover are respectively installed on the main shaft through flat keys, the sieve rotor is of a through cylindrical structure, and the upper rotating cover and the lower rotating cover are respectively installed on the upper end face and the lower end face of the sieve rotor through 4 screws which are uniformly distributed in the circumferential direction; 3 layers of rotor wings are arranged on the sieve rotor at equal intervals from top to bottom, and 6 rotor wings are uniformly distributed in the circumferential direction on each layer; 9 layers of sieve pores are arranged on the screen cylinder at equal intervals from top to bottom, the number of each layer of sieve pores is 30, the sieve pores are uniformly distributed in the circumferential direction, and the sieve pores are of parallel pore structures.

The lower end face of the grinding disc A is provided with 3 layers of roller holes from inside to outside, the roller holes are of a cuboid blind hole structure, the number of the 1 st layer of roller holes is 8, the roller holes are circumferentially and uniformly distributed, the number of the 2 nd layer of roller holes is 12, the roller holes are circumferentially and uniformly distributed, and the number of the 3 rd layer of roller holes is 16, and the roller holes are circumferentially and uniformly distributed; the number of the filter holes on the inner side of the grinding disc B is 8, and the filter holes are uniformly distributed in the circumferential direction; the two sides of each roller frame are respectively provided with a press roller, a ball is arranged between each press roller and the roller frame, the roller frame is connected with a grinding disc A through a spring A, and the upper end of the roller frame and the spring A are arranged in the guide cylinder.

The upper end and the lower end of the telescopic sleeve are fixed by screws, and the telescopic sleeve is made of rubber; the upper end of the ejector rod is provided with a cushion pad, the outer side of the bottom end of the grinding cylinder close to the ejector rod is provided with a scale through a screw, and the scale is provided with scales.

The invention realizes the generation and output of the jordaning by the jordaning generating device, namely, the slurry is screened and jordaning in a grinding cylinder in the jordaning generating device to generate the required jordaning and is output by a jordaning outlet; providing continuous driving force for the equipment through a power driving device, namely providing continuous rotating driving force for a sieve rotor in a rotary-press pulp sieving device and a grinding disc A in a rotary-roller grinding device through a motor and a main shaft in the power driving device; the rotary pressing screening of slurry before pulping is realized through a rotary pressing pulp screening device, namely, the slurry before pulping is screened through a screen rotor and a screen drum in the rotary pressing pulp screening device, so that grinding disc A and grinding disc B are prevented from being worn by material slag; the slurry is spun and rolled and ground by a rotary roller grinding device, namely the slurry is spun and ground by a grinding disc A and a grinding disc B in the rotary roller grinding device, and the slurry is rolled and ground by a press roller and the grinding disc B to produce the required ground pulp; the grinding pressure between the grinding disc A and the grinding disc B is adjusted through the grinding pressure adjusting device, namely the height of the grinding disc B is adjusted through the ejector rod and the spring B in the grinding pressure adjusting device, and the height of the compression roller is adjusted through the spring A, so that the grinding pressure between the grinding disc A and the grinding disc B is adjusted.

The invention realizes the generation and output of the ground pulp by the ground pulp generating device, namely, the ground pulp is screened and ground in a grinding cylinder in the ground pulp generating device to generate the required ground pulp and is output by a ground pulp outlet.

The continuous driving force is provided for equipment through the power driving device, namely the motor and the main shaft in the power driving device are used for providing continuous rotating driving force for a screen rotor in the rotary-pressing pulp screening device and a grinding disc A in the rotary-roller grinding device, and specifically, when the equipment works, the motor drives the main shaft to rotate, the main shaft drives an upper rotating cover and a lower rotating cover in the rotary-pressing pulp screening device to rotate through a flat key, so that the screen rotor is driven to rotate, the main shaft drives the grinding disc A in the rotary-roller grinding device to rotate through the flat key, and further, a press roller on the grinding disc A is driven to rotate along with the rotation.

The roller bearing, the bearing cover and the sealing ring are arranged at the joint of the main shaft and the bottom end of the grinding cylinder, and the design realizes low-abrasion rotation of the main shaft and sealing at the joint.

The invention is provided with a sealing ring and a roller bearing at the joint of the main shaft and the screen cylinder, and the design realizes low-abrasion rotation of the main shaft at the joint and sealing at the joint.

The invention is provided with an upper sealing ring and a lower sealing ring at the joint of the main shaft and the grinding disc B, and the design strengthens the sealing between the main shaft and the grinding disc B, thereby preventing the grinding pulp from leaking from the joint.

The spinning screening of slurry before pulping is realized through the spinning pulp screening device, namely, the slurry before pulping is screened through a screen rotor and a screen drum in the spinning pulp screening device, and grinding disc A and grinding disc B are prevented from being worn by material residues; through the screening to input ground paste, with the export of material sediment screening, prevent that the material sediment from getting into between mill A and mill B, both prevented when the rotary grinding, produce wearing and tearing to mill A and mill B, improve the quality of thick liquid again.

The invention realizes the spinning and rolling grinding of the slurry by a rotary roller grinding device, namely, the slurry is spun and ground by a millstone A and a millstone B in the rotary roller grinding device, and the slurry is rolled and ground by a press roller and the millstone B, and the required pulp is produced; in addition, the pressing roller rotating along with the grinding disc A performs rolling grinding on good pulp between the pressing roller and the grinding disc B, a fiber pad is formed in local grinding, the bonding force between fibers is enhanced, the flexibility of grinding is improved, and the ground grinding enters the bottom of the grinding cylinder through the filtering holes in the grinding disc B.

The invention arranges the ball between the compression roller and the roller frame, and reduces the rolling resistance of the compression roller through the design.

The grinding pressure between the grinding disc A and the grinding disc B is adjusted through the grinding pressure adjusting device, namely the height of the grinding disc B is adjusted through the ejector rods and the spring B in the grinding pressure adjusting device, the height of the compression roller is adjusted through the spring A, so that the grinding pressure between the grinding disc A and the grinding disc B is adjusted, and particularly, when the equipment works, when the gap between the grinding disc A and the grinding disc B needs to be adjusted, only the ejector rods need to be rotated, for example, the gap between the grinding disc A and the grinding disc B needs to be reduced, and 4 ejector rods are simultaneously rotated, and because the scales are arranged beside each ejector rod, only the corresponding scale needs to be rotated by each ejector rod, the ejector rods overcome the elasticity of the spring B, stretch the spring B and the telescopic sleeves and drive the grinding disc B to move upwards, so that the height of the grinding disc B is increased, and the distance between the; if the distance between the grinding disc A and the grinding disc B is required to be increased, the grinding disc B is only required to be reversely rotated, and the grinding disc B is promoted to move downwards under the gravity of the grinding disc B and the elastic potential energy of the spring B times of tension, so that the distance between the grinding disc A and the grinding disc B is increased; in addition, the design of the spring A on the compression roller can automatically adjust the distance between the compression roller and the millstone B, namely when the good pulp between the millstone B and the compression roller is increased, the good pulp pushes the compression roller and the roller frame to compress the spring A, so that the quantitative good pulp can be stored between the compression roller and the millstone B, and the good pulp between the compression roller and the millstone B can be rolled; when the good pulp between the grinding disc B and the press roll is reduced, the compressed spring A drives the roll frame and the press roll to move downwards through the released elastic potential energy, and the distance between the press roll and the grinding disc B is reduced, so that the good pulp between the grinding disc B and the press roll is kept at continuous high pressure, and the rolling grinding is convenient.

According to the invention, the buffer pad is arranged at the upper end of the ejector rod, so that the impact of the grinding disc B on the ejector rod during working is reduced, and the ejector rod and the grinding disc B are prevented from being abraded due to direct contact.

The upper end of the roller frame and the spring A are arranged in the guide cylinder, and the roller frame and the spring A play a role in guiding when moving through the design and prevent the roller frame from driving the compression roller to deflect.

The invention has the beneficial effects that: the grinding device comprises a grinding disc A, a grinding disc B, a grinding roller grinding device, a grinding pressure adjusting device, a power driving device, a rotary pressure screening device, a rotary roller grinding device and a grinding pressure adjusting device.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the whole structure of the top rod driving grinding disc B after moving upwards.

Fig. 3 is a schematic view of the structure of the cartridge cover of the present invention.

Fig. 4 is a schematic view of the construction of the joint of the spindle and the bottom end of the grinding cylinder of the present invention.

Fig. 5 is a schematic view of the structure of the joint of the spindle and the cap of the present invention.

Fig. 6 is a schematic view of the structure of the joint of the main shaft and the bottom end of the screen cylinder.

Fig. 7 is a schematic structural diagram of the rotary extrusion pulp screening device of the invention.

Figure 8 is a schematic top view of a screen cylinder and a screen rotor of the invention.

Fig. 9 is a schematic structural view of the roll grinder of the present invention.

Fig. 10 is a schematic view of the arrangement of the pressure roller of the present invention on the grinding disc a.

Fig. 11 is a schematic view of the arrangement of the filter holes of the present invention on the grinding disc B.

Fig. 12 is a partial structural schematic view of the grinding pressure adjusting device of the present invention.

Fig. 13 is a partial structure view of the stretched spring B and the telescopic sleeve of the present invention.

Fig. 14 is a schematic structural diagram of the joint of the spring A and the roller frame and the grinding disc A of the invention.

Fig. 15 is a schematic view of the compressed spring a of the present invention.

Fig. 16 is a schematic view of the structure of the joint of the ejector pin and the grinding disc B of the present invention.

Fig. 17 is a schematic structural view of the ejector pin of the present invention after moving up.

Wherein: 1. pillar, 2, ejector rod, 3, scale, 4, grinding outlet, 5, motor, 6, main shaft, 7, grinding cylinder, 8, grinding disc B, 9, blocking cylinder, 10, grinding disc A, 11, slurry outlet, 12, screen cylinder, 13, screen cylinder, 14, screw, 15, cylinder cover, 16, feed inlet, 17, rotor, 18, upper rotary cover, 19, screen rotor, 20, slag outlet, 21, compression roller, 22, sealing ring, 23, bearing cover, 24, roller bearing, 25, lower rotary cover, 26, flat key, 27, roller hole, 28, screen hole, 29, filter hole, 30, spring B, 31, telescopic sleeve, 32, guide cylinder, 33, roller frame, 34, ball, 35, cushion pad, 36 spring A.

Detailed Description