CN114457608B - High-concentration pulping machine - Google Patents

Abstract

The invention provides a high-concentration pulping machine, which is matched with a feeding mechanism, a pulping mechanism and a rack, wherein the pulping mechanism comprises: grinding head subassembly and grinding body bearing room subassembly that the cooperation set up, grinding body bearing room subassembly includes: the magnetic grating ruler is arranged on one side of the grinding body bearing chamber; two sides of the bearing chamber of the mill body are respectively connected to the sliding blocks on the frame; the grinding body bearing chamber is connected with a worm gear and worm lifter through a bottom connecting frame, the worm gear and worm lifter drags the grinding body bearing chamber to slide on a guide rail under the drive of a servo motor, and a first self-aligning roller bearing, a second self-aligning roller bearing, a spherical roller thrust bearing and a bearing spacer ring are cooperatively arranged, wherein spring holes are milled on the bearing spacer ring to install a pre-tightening spring, and the pre-tightening spring is matched with the spherical roller thrust bearing; the first bearing chamber gland and the second bearing chamber gland are respectively arranged at two ends of the bearing chamber of the grinding body. By the technical scheme, the precision of feeding and retracting the cutter is improved, the positioning precision is improved, and the runout of the grinding disc during shafting rotation is avoided.

Description

High-concentration pulping machine

Technical Field

The invention relates to the technical field of mechanical equipment for papermaking, in particular to a high-concentration pulping machine.

Background

The paper industry is an important basic raw material industry which is closely related to national economy development and human civilization construction. Since the innovation was opened, the paper industry in China has greatly developed, and China has become a large country for the world paper industry production, consumption and import. The pulping equipment in China is a cylindrical pulping machine which is popularized and used by a multi-purpose groove type pulping machine in the past and a conical pulping machine used in the sixth seventies of the 20 th century, and is developed to a disc pulping machine which is widely used at present.

In the related art, the high-concentration pulping machine mainly comprises a feeding system and a pulping system, wherein the feeding system comprises an asynchronous motor, a triangle belt pulley, a speed reducer, a feeding spiral pipe and the like, and the speed reducer is driven by the asynchronous motor and is connected with the feeding spiral pipe in parallel to realize feeding. The pulping system mainly comprises a pulping chamber, abrasive sheets, an adjusting and moving device, a coupling and the like, pulp conveyed by a feeding spiral pipe is conveyed to the pulping chamber, the pulp is ground into good pulp by the abrasive sheets, a cutter feeding and retracting device is controlled by hydraulic pressure, and a main shaft is pushed to axially reciprocate by adjusting the pressure of an oil cylinder, so that the gap and the pressure between the two abrasive sheets are adjusted. The following technical defects exist:

(1) The stability of the feeding system is poor, the feeding system is easy to swing in the feeding process, the feeding stability is influenced, and more supporting structures are required to be designed, so that the occupied space is large.

(2) The accuracy of cutter feeding and retracting in the pulping system is not high, the transmission feeding mechanism adopts a cylinder-cylinder matching mode, the sliding clearance of the matching mode is too large, the contact between the cylinder and the cylinder is in line contact, under-positioning is realized, shaking occurs during rotation, the beating of the abrasive disc is easy to cause, and the pulping effect is seriously affected.

(3) The milling system has the advantages that the cutter advancing and retreating mechanism is easy to wear, the precision life is short, the transmission feeding mechanism adopts a cylinder-cylinder matching mode, and because the cylinders are in line contact, lubricating oil cannot remain at the contact part, so that the abrasion is too fast, and the precision life is short.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

Therefore, an object of the present invention is to provide a high-consistency pulping machine, which controls the sliding of a grinding body bearing chamber on a rack guide rail by adopting a servo motor and a worm gear lifter, so as to realize the feeding and retracting of a high-consistency grinding tool, and form a closed loop with a magnetic grating ruler, and improve the feeding and retracting precision of a transmission mechanism.

In order to achieve the above object, the present invention provides a high-consistency refiner, comprising: feeding mechanism, pulping mechanism and frame that the cooperation set up, pulping mechanism includes: grinding head subassembly and grinding body bearing chamber subassembly that the cooperation set up, grinding body bearing chamber subassembly includes: the grinding head assembly is arranged at one end of the grinding shaft; the grinding body bearing chamber is sleeved on the grinding shaft; the magnetic grating ruler is arranged on one side of the grinding body bearing chamber; a guide rail is arranged on the frame, a sliding block is arranged on the guide rail, and two sides of the bearing chamber of the grinding body are respectively connected to the sliding block; the grinding body bearing chamber is connected with a worm gear lifter through a connecting frame arranged at the bottom, the worm gear lifter is driven by a servo motor to drag the grinding body bearing chamber to slide on a guide rail, the servo motor and the magnetic grating ruler form a closed loop, and the driving and the reversing of the grinding body bearing chamber are controlled; the first self-aligning roller bearing and the second self-aligning roller bearing are respectively sleeved on the grinding shaft, and are respectively installed at the inner sides of two ends of the grinding body bearing chamber through round nuts and stop washers for the round nuts; the spherical roller thrust bearing is sleeved on the grinding shaft, a bearing spacer ring is arranged between the spherical roller thrust bearing and the first aligning roller bearing, the bearing spacer ring is sleeved on the grinding shaft, a spring hole is milled on the bearing spacer ring, a pre-tightening spring is arranged in the spring hole, and the pre-tightening spring is matched with the spherical roller thrust bearing to pre-tighten the spherical roller thrust bearing; the bearing gasket is sleeved on the grinding shaft and is arranged close to the spherical roller thrust bearing; the first bearing chamber gland and the second bearing chamber gland which are matched are sleeved on the grinding shaft, and the first bearing chamber gland and the second bearing chamber gland are respectively arranged at two ends of the grinding body bearing chamber, wherein a bearing chamber sleeve is arranged between the first bearing chamber gland and the grinding body bearing chamber and is positioned at the same end with the spherical roller thrust bearing, so that the bearing is convenient to install, and a first TC oil seal is arranged between the first bearing chamber gland and the grinding shaft.

In this scheme, through adopting servo motor and worm gear lift to control the slip of grinding body bearing room on the frame guide rail and realize controlling high concentration grinding feed withdrawal, servo motor and magnetic grating chi form the closed loop, have improved the transmission greatly and have advanced the precision of withdrawal. The magnetic grating ruler can accurately reflect the distance between the cutter feeding and retracting of the bearing chamber of the grinding body. The two sides of the bearing chamber of the grinding body are respectively connected to the sliding blocks, so that the plane is matched with the plane, the plane is contacted with the plane, the positioning precision is greatly improved, the runout of the grinding disc during the rotation of the shafting is avoided to a certain extent, lubricating oil can be better reserved, and the abrasion condition is greatly improved.

The first self-aligning roller bearing, the second self-aligning roller bearing and the spherical roller thrust bearing are sleeved on the grinding shaft, the weight of the hot grinding rotor unit is born by the first self-aligning roller bearing and the second self-aligning roller bearing, the axial force of the hot grinding rotor unit is born by the spherical roller thrust bearing, and the stability of the grinding disc during shaft system rotation is greatly improved. And a spring hole is designed on the bearing spacer ring, and a pre-tightening spring is arranged to realize pre-tightening of the spherical roller thrust bearing. By arranging the bearing gasket, the contact area between the spherical roller thrust bearing and the grinding shaft is enlarged. The bearing chamber sleeve is arranged between the first bearing chamber gland and the grinding body bearing chamber, which are positioned at the same end with the spherical roller thrust bearing, so that the bearing is made into a split type, the installation of the bearing is convenient, and the function of fixing the hot grinding rotor unit can be achieved. The TC oil seal is arranged among the first bearing chamber gland, the second bearing chamber gland and the grinding shaft, so that the entry of dust on the atmosphere side and the outflow of lubricating oil in the grinding body bearing chamber can be prevented, the lubricating of the bearing in the grinding body bearing chamber adopts a circulating oil supply method, and the bearing can be cooled besides the lubricating.

Specifically, the servo motor drives the worm gear lifter to drag the grinding body bearing chamber to slide on the guide rail, so that high-concentration grinding of the cutter advancing and retracting is realized, and the magnetic grating ruler can accurately reflect the distance of the cutter advancing and retracting of the grinding body bearing chamber; the hot grinding rotor unit drives the grinding shaft to rotate, so that the grinding disc is driven to rotate, and pulp grinding is realized.

The bearing chamber of the mill body and the connecting frame are of an integrated structure.

Preferably, the grinding head assembly includes: the grinding body and the upper cover of the grinding body are matched; the grinding cover is matched with the grinding body, an opening is formed in the central area of the grinding cover, a grinding cover bushing is installed in a nested manner, the grinding cover bushing is matched with the feeding cylinder, a first key bar is arranged on the grinding cover bushing, and a slurry conveying channel is formed between the grinding cover bushing and the feeding cylinder; the static disc is arranged in the grinding body, one side of the static disc is connected with the grinding cover, the first grinding disc is arranged on the other side of the static disc, and the central area of the static disc is open and is provided with a static disc bushing in a nested manner; the hot grinding disc seat is fixedly arranged on the grinding shaft through conical surface interference and is arranged in the grinding body; the hot grinding disc is arranged in the grinding body, one side of the hot grinding disc is connected with the hot grinding disc seat, and the second grinding disc is arranged on the other side of the hot grinding disc; and the pulping and stirring device is arranged on the thermal grinding movable disc, the pulping and stirring device is matched with the static disc bushing, after feeding, the static disc bushing and the pulping and stirring device form a closed area, and the pulping and stirring device stirs the conveyed pulp to a pulping area between the first grinding disc and the second grinding disc.

In this scheme, cooperation sets up grinding body and grinding body upper cover and grinds the main part as, can only dismantle grinding body upper cover and change mill and movable disk plectrum etc. under the circumstances of not tearing open greatly, maintains easy maintenance. The grinding cover is matched with the grinding body, the grinding cover lining is arranged in an opening in the central area of the grinding cover in a nested manner, the grinding cover lining is matched with the feeding barrel of the feeding mechanism to realize feeding, the first key strip is arranged on the grinding cover lining, a slurry conveying channel is formed by the first key strip and the feeding barrel, slurry is conveniently conveyed to the pulping mechanism through the feeding mechanism, and conveying stability is higher. A static disc is arranged in the mill body, one side of the static disc is connected with the mill cover, the other side of the static disc is connected with the first mill disc, the effect of fixing the first mill disc is achieved, the center area of the static disc is opened, a static disc lining is installed in a nested mode, and after feeding, the static disc lining and the milling material deflector form a closed area. One side of the thermal grinding movable disc is connected with the thermal grinding movable disc seat, the other side of the thermal grinding movable disc is connected with the second grinding disc, the connection and fixation effect of the second grinding disc is achieved, the thermal grinding movable disc seat is fixedly arranged on the grinding shaft through conical surface interference, and the second grinding disc rotates under the driving of the grinding shaft so as to be matched with the first grinding disc to realize pulping. The hot grinding movable disc is provided with the grinding stirring device, the grinding stirring device is matched with the static disc lining, the static disc lining and the grinding stirring device form a closed area, the grinding stirring device stirs the conveyed pulp to a pulp grinding area between the first grinding disc and the second grinding disc, and the pulp grinding efficiency and the pulp grinding effect can be improved.

Preferably, a movable disc shifter and a rear lining key bar are arranged on the thermal grinding movable disc seat, the movable disc shifter is arranged on the outer peripheral surface of the thermal grinding movable disc seat, and the rear lining key bar is arranged on the rear side of the thermal grinding movable disc seat and matched with the inner side wall of the grinding body.

In this scheme, install movable disk plectrum ware and back lining keybar on the hot grinding movable disk seat, when the withdrawal sword, can strike off the thick liquids that glues on grinding body upper cover and grinding body, can play the effect of preventing blockking up.

Preferably, the feeding mechanism comprises: the feeding cylinder is connected with the grinding head assembly at one end; one end of the feeding hopper is connected with the other end of the feeding barrel; the feeding upper hopper is arranged at the top of the feeding hopper and is communicated with the feeding hopper; the feeding bearing chamber assembly is connected with the other end of the feeding hopper and comprises a conveying screw shaft and a feeding bearing chamber sleeved on the conveying screw shaft, the screw end of the conveying screw shaft penetrates into the feeding hopper, and the other end of the conveying screw shaft is connected with a feeding power mechanism; the feeding bearing chamber is provided with a feeding sealing structure, and a feeding hopper end cover is sleeved at the connecting position of the feeding bearing chamber and the feeding hopper and is connected with the feeding bearing chamber, the feeding hopper and the feeding sealing structure into a whole.

In this scheme, the design through feeder hopper and feeding upper hopper has shortened the distance of high concentration mill feed mechanism and material system greatly for the material falls into the feeder hopper more accurately. One end of the feeding cylinder is connected with the grinding head assembly, and the other end of the feeding cylinder is connected with the feeding hopper to form a material conveying channel. The feeding bearing chamber component is connected with the other end of the feeding hopper, the feeding bearing chamber component comprises a conveying screw shaft and a feeding bearing chamber sleeved on the conveying screw shaft, the screw end of the conveying screw shaft penetrates into the feeding hopper, the other end of the conveying screw shaft is connected with the feeding power mechanism, under the action of the conveying screw shaft, materials enter the pulping mechanism along the feeding barrel, and the material conveying efficiency is high. Set up feeding seal structure between feeding bearing room and feeder hopper, the hookup of feeding hopper end cover department at feeding bearing room and feeder hopper is established, links into an organic whole feeding bearing room, feeder hopper and feeding seal structure for on the one hand, make the feeder hopper constitute closed container, on the other hand, make feeding bearing room and mill the lid bear the weight of feeding upper hopper, feeder hopper and feed cylinder, need not to design independent support, simplified feeding structure, practiced thrift occupation space.

Preferably, the feeding cylinder is welded with a second key bar, the bottom of the feeding hopper is of a circular arc V-shaped structure, and the spiral end of the conveying spiral shaft is of a hollow structure.

In this scheme, through welding the second keybar on the feed cylinder, can prevent the rotation of material along circumferencial direction in the transportation process, improve material conveying efficiency. The unique design of feeder hopper makes the material slide into the feeder hopper bottom along feeding upper hopper lateral wall under the effect of gravity, enters into the feed cylinder under the effect of conveying spiral. The spiral end of the conveying spiral shaft is of a hollow structure, so that the weight of the conveying spiral shaft is greatly reduced, in addition, the swing of the conveying spiral shaft in the rotation process is reduced, and the conveying stability is greatly improved.

Preferably, the feed bearing chamber assembly further comprises: the large belt wheel is sleeved at the other end of the conveying screw shaft and connected with the feeding power mechanism; the two angular contact bearings are arranged on one end, close to the large belt wheel, of the feeding bearing chamber back to back, and the angular contact bearings are sleeved on the conveying screw shaft; the cylindrical roller bearing is arranged at the other end of the feeding bearing chamber and sleeved on the conveying screw shaft; the first feeding bearing chamber gland and the second feeding bearing chamber gland which are matched are sleeved on the conveying screw shaft, the first feeding bearing chamber gland and the second feeding bearing chamber gland are respectively installed at two ends of the feeding bearing chamber, and a second TC oil seal is arranged between the first feeding bearing chamber gland and the second feeding bearing chamber gland and the conveying screw shaft.

In the scheme, the large belt wheel is sleeved at the other end of the conveying screw shaft, so that the conveying screw shaft is convenient to connect with the feeding power mechanism, and rotary power is provided for the conveying screw shaft. The feeding bearing chamber is arranged back to back by adopting two angular contact bearings at one end close to the large belt wheel, and the cylindrical roller bearing is adopted at the other end, so that the feeding bearing chamber can bear bidirectional axial force, and the radial bearing capacity of the bearing is greatly improved. The first feeding bearing chamber gland and the second feeding bearing chamber gland are respectively arranged at two ends of the feeding bearing chamber, a TC oil seal is arranged between the first feeding bearing chamber gland and the second feeding bearing chamber gland and the conveying screw shaft, and oil bath lubrication is adopted for bearing lubrication in the feeding bearing chamber, so that dust on the air side can be prevented from entering, and lubricating oil in the feeding bearing chamber can be prevented from flowing out.

Preferably, the feed seal structure comprises: the first shaft sleeve is sleeved on the conveying screw shaft, sealing grooves are formed in two ends of the first shaft sleeve, and the sealing rings are clamped in the sealing grooves; the packing is sleeved on the first shaft sleeve; the packing sealing body is sleeved on the packing, an opening is formed in the packing sealing body, a through water nozzle is arranged at the opening, and a packing ring is filled in the area between the first shaft sleeve which is in the same axial direction with the through water nozzle and the packing sealing body; the packing gland is sleeved on the first shaft sleeve, is matched with the packing sealing body, extrudes packing in an inner space formed by the packing gland, and is in clearance fit with the outer peripheral surface of the first shaft sleeve through a fastening screw and a spring washer, and the end face of the packing gland is connected with the end face of the packing sealing body through a bolt in a fastening mode.

In this scheme, the seal groove is seted up at the both ends of first axle sleeve, and sealing washer joint is in the seal groove for the leakproofness at feed bearing room and feeder hopper hookup location department both ends is better. The packing is sleeved on the first shaft sleeve, the packing sealing body is sleeved on the packing, the sealing performance is good, the packing sealing body is not in direct contact with the conveying screw shaft, the shaft body is not easy to damage, the packing sealing gland and the packing sealing body are matched and arranged, the packing is extruded and fixed, and the connection and fixation of the whole feeding sealing structure are realized.

Preferably, the feed power mechanism comprises: a motor base; the motor is arranged on the motor base, a small belt pulley is arranged on an output shaft of the motor, and the small belt pulley is connected with the large belt pulley through an SPA narrow V belt; the belt pulley protective cover is fixedly arranged on the motor base and sleeved on the outer side of the SPA narrow V belt; the first foundation bolts are arranged at four corners of the motor base; the adjusting block is arranged on the motor base and matched with the small belt pulley, a bolt hole is formed in the adjusting block, and the tension of the small belt pulley is adjusted through screwing in the bolt.

In the scheme, the motor adopts a 6-level motor, and achieves the ideal rotating speed of the conveying screw shaft through the speed reduction of the small belt pulley and the large belt pulley. The SPA type narrow V belt is adopted, so that the SPA type narrow V belt can bear larger pretightening force, and is higher in speed and flexible times, bearing capacity and service life. The motor base is arranged, so that the installation center distance of the small belt wheel and the large belt wheel is ensured. And an adjusting block is arranged on the motor base, and a bolt hole is formed in the adjusting block, so that the belt pulley can be tensioned and loosened by screwing in a bolt. A belt pulley shield is arranged on the motor base for protection. The four corners of the motor base are provided with foundation bolts, so that the motor base is convenient to firmly fix on the ground.

Preferably, the frame comprises: the machine frame body is connected with the grinding body bearing chamber and the grinding head assembly;

The worm gear and worm lifter is arranged in the frame body, one end of the worm gear and worm lifter is connected with the grinding body bearing chamber, the other end of the worm gear and worm lifter is connected with the lifter nut seat, and the lifter nut seat is fixedly arranged on the frame body; the top of the frame body is milled with a guide rail groove, the guide rail is arranged in the guide rail groove, the two ends of the guide rail are wedged and fixed through a first pushing and shifting block, a sliding block is arranged on the guide rail, and the sliding block on one side of the guide rail is wedged and fixed with the bearing chamber of the grinding body through a second pushing and shifting block; the machine frame body comprises a machine frame front plate adjacent to the grinding head assembly and a machine frame side plate connected with the machine frame front plate, wherein an M42 nut and a bolt are arranged on the machine frame front plate so as to mechanically limit the grinding body bearing chamber; the bearing chamber cover plate is arranged on the top surface of the frame body and covers the upper parts of the bearing chamber and the guide rail of the grinding body; and the second foundation bolt is arranged at the bottom of the frame body.

In this scheme, the frame body links up grinding body bearing room and bistrique subassembly, plays certain supporting role to grinding body bearing room and bistrique subassembly, has practiced thrift the space and has taken up. The worm gear lifter is arranged in the frame body, one end of the worm gear lifter is connected with the grinding body bearing chamber, the other end of the worm gear lifter is connected with the lifter nut seat fixedly arranged on the frame body, and the servo motor drives the worm gear lifter to control the grinding body bearing chamber to advance and retreat, so that the cutter is controlled to advance and retreat. The top of frame body mills has the guide rail groove, and the guide rail is installed in the guide rail groove, and the both sides of guide rail are fixed through first pushing and pulling block wedging, and the slider setting is on the guide rail, and the slider of one side is fixed through the second pushing and pulling block wedging to guarantee the accurate slip of slider on the guide rail. And an M42 nut and a bolt are arranged on the front plate of the frame to mechanically limit the grinding body bearing chamber, so that the second grinding disc on the hot grinding disc can be effectively prevented from being collided with the first grinding disc on the static disc, and the pulping effect is ensured. The bearing chamber cover plate is arranged on the top surface of the frame body and is arranged above the bearing chamber and the guide rail of the grinding body, so that slurry can be prevented from flowing onto the bearing chamber and the guide rail on one hand, and potential safety hazards during cutter advancing and retreating can be effectively reduced on the other hand. Foundation bolts are installed at the bottom of the frame body, so that the frame body is convenient to firmly fix on the ground.

Preferably, a grinding sealing structure is arranged between the grinding body bearing chamber and the grinding head assembly, and the grinding sealing structure comprises: the second sleeve is sleeved on the grinding shaft; the steam seal body is sleeved on the second shaft sleeve, and comprises a steam seal shell, a plurality of grate teeth and a plurality of spacing rings, wherein the plurality of grate teeth and the plurality of spacing rings are connected and fixed on the steam seal shell through long bolts and nuts, and the matched parts of the grate teeth and the second shaft sleeve are arranged by adopting cone tips.

In this scheme, grind seal structure's simple structure, be convenient for make, gland seal body cover is established on the second axle sleeve, can prevent gland seal body and axle direct contact and fish tail axle, play certain guard action to the axle. The steam seal body comprises a steam seal shell, a plurality of grate teeth and a plurality of spacing rings, wherein the grate teeth and the spacing rings are alternately arranged, the grate teeth are in clearance fit with the steam seal shell, the plurality of grate teeth and the plurality of spacing rings are connected and fixed to the steam seal shell through long bolts and nuts, the matched parts of the grate teeth and the second shaft sleeve are arranged by adopting cone tips, and when the steam seal body is contacted with the shaft sleeve, the cone tips fall off, so that the shaft sleeve can be protected. The grating teeth and the spacing ring form an expansion space for gas, and a small amount of gaps are reserved between the grating teeth and the second shaft sleeve, so that the purpose of throttling can be achieved. The gas flows through the gaps between the grating teeth and the shaft sleeve to generate great energy loss, the pressure is reduced after the gas passes through the expansion space, the fluid passes through the flow channel formed by the plurality of throttling gaps and the expansion space, and the gas pressure head is greatly reduced, so that the gas is difficult to leak, and the aim of sealing is fulfilled.

The high-concentration pulping machine provided by the invention has the following beneficial technical effects:

(1) According to the high-concentration pulping machine provided by the invention, the servo motor and the worm gear lifter are adopted to control the grinding body bearing chamber to slide on the frame guide rail, so that the feeding and retracting of the cutter are realized, the magnetic grating ruler is arranged on one side of the grinding body bearing chamber, the distance between the feeding and retracting of the cutter of the grinding body bearing chamber can be accurately reflected by the magnetic grating ruler, the servo motor and the magnetic grating ruler form a closed loop, the precision of the transmission feeding and retracting of the cutter is greatly improved, and the pulping effect is further improved.

(2) According to the high-concentration pulping machine, the two sides of the bearing chamber of the pulping body are respectively connected to the sliding blocks, the sliding blocks slide on the frame guide rails, and the feeding and retracting of the blade are realized through the plane-plane matching and the surface-to-surface contact, so that the positioning precision is greatly improved, the runout of the grinding disc during the rotation of the shaft system is avoided to a certain extent, the lubricating oil can be better reserved, and the abrasion condition is greatly improved.

(3) The high-concentration pulping machine provided by the invention adopts a unique grinding body bearing chamber component design, not only can realize the matching with sliding and guide rails and realize the feeding and retracting of a cutter by utilizing the sliding of the sliding block, but also is internally provided with a first self-aligning roller bearing, a second self-aligning roller bearing, a spherical roller thrust bearing, a bearing spacer ring, a bearing gasket and the like, so that the axial fixing of a hot grinding rotor unit is realized, the weight and the axial force brought by the hot grinding rotor unit are balanced, and the stability of a grinding disc during the rotation of a shaft system is greatly improved.

(4) The high-concentration pulping machine provided by the invention adopts a unique grinding head component design, is convenient to maintain and repair, ensures the pulping effect, and can scrape pulp stuck on the upper cover of the pulping body and the pulping body during tool withdrawal, prevent blockage and improve the pulping yield.

(5) The high-concentration pulping machine provided by the invention adopts a unique feeding mechanism, has a simple structure, occupies small space, and has good conveying stability.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 shows a schematic diagram of a high consistency refiner according to an embodiment of the invention;

FIG. 2 shows a schematic view of the structure of the body bearing housing assembly of FIG. 1;

FIG. 3 illustrates a schematic bottom view of the body bearing housing assembly of FIG. 2;

FIG. 4 illustrates a schematic cross-sectional structural view of the mill body bearing housing assembly of FIG. 2;

FIG. 5 illustrates a schematic structural view of the grater assembly of FIG. 1;

FIG. 6 illustrates a schematic cross-sectional structural view of the grater assembly of FIG. 5;

FIG. 7 shows a schematic view of a portion of the feed mechanism of FIG. 1;

FIG. 8 shows a schematic cross-sectional configuration of the feed mechanism of FIG. 7;

FIG. 9 shows a schematic structural view of the feed bearing chamber assembly of FIG. 1;

FIG. 10 shows a schematic view of the feed seal structure of FIG. 1;

FIG. 11 shows a schematic view of the feed power mechanism of FIG. 1;

FIG. 12 shows a schematic side view of the feed power mechanism of FIG. 11;

FIG. 13 shows a schematic view of the structure of the frame of FIG. 1;

Fig. 14 shows a schematic longitudinal sectional view of the frame of fig. 13;

FIG. 15 shows a schematic cross-sectional view of the frame at A-A of FIG. 14;

FIG. 16 shows a schematic view of the seal structure of the mill of FIG. 1;

FIG. 17 shows a schematic view of the vapor enclosure of FIG. 16;

wherein, the correspondence between the reference numerals and the components in fig. 1 to 17 is:

100 feed mechanism, 102 feed cartridge, 1021 second key bar 104 feed hopper, 106 feed upper hopper, 108 feed bearing chamber assembly, 1081 feed screw shaft, 1082 feed bearing chamber, 1083 large pulley, 1084 angular contact bearing, 1085 cylindrical roller bearing, 1086 first feed bearing chamber gland, 1087 second feed bearing chamber gland, 1088 second TC oil seal, 110 feed seal structure, 1101 first shaft sleeve, 1102 seal groove, 1103 seal ring, 1104 packing, 1105 packing seal, 1106 straight water nozzle, 1107 packing ring, 1108 packing seal gland, 1109 fastening screw, 1110 spring washer, 112 feed hopper end cap, 114 feed power mechanism, 1141 motor mount, 1142 motor, 1143 small pulley, 1144SPA narrow V belt, 1145 pulley shield, 1146 first anchor bolt, 1147 adjustment block, 1148 bolt, 200 grinding mechanism, 202 grinding head assembly, 2021 grinding body upper cover, 2023 grinding cover, 2024 cover bushing, 2025 first key bar, 2026 static disc, 2027 first grinding disc, 2028 static disc bushing, 2029 thermally-actuated disc seat, 2030 thermally-actuated disc, 2031 second grinding disc, 2032 grinding and stirring device, 2033 thermally-actuated disc stirring device, 2034 rear-actuated key bar, 204 grinding body bearing chamber assembly, 2041 grinding body bearing chamber, 2042 magnetic grating ruler, 2043 magnetic grating ruler shield, 2044 coupling frame, 2045 first aligning roller bearing, 2046 second aligning roller bearing, 2047 round nut, 2048 round nut stop washer, 2049 spherical roller thrust bearing, 2050 bearing spacer ring, 2051 spring bore, 2052 pretension spring, 2053 bearing washer, 2054 first bearing chamber gland, 2055 second bearing chamber gland, 2056 bearing chamber sleeve, 2057 first TC oil seal, 2058 grinding shaft, 206 grinding seal structure, 2061 second bearing sleeve, 2062 seal body, 2062-1 seal housing, 2062-2 grating teeth, 2062-3 guide rail, 300 worm gear, 300 guide rail, 306 lift worm gear, 306, 308 frame body, 3081 frame front plate, 3082 frame side plate, 310 elevator nut seat, 312 guide rail groove, 314 first push-pull block, 316 second push-pull block, 318M42 nut and bolt, 320 bearing chamber cover plate, 322 second rag bolt.

Detailed Description

In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.

A high consistency refiner according to an embodiment of the invention will be described in detail with reference to fig. 1 to 17.

As shown in fig. 1 to 17, a high consistency refiner according to an embodiment of the present invention comprises: the feeding mechanism 100, the pulping mechanism 200 and the frame 300 are arranged in a matched mode, the pulping mechanism 200 comprises a grinding head assembly 202 and a grinding body bearing chamber assembly 204 which are arranged in a matched mode, and the grinding head assembly 202 is arranged at one end of a grinding shaft 2058. As shown in fig. 2-4, the mill body bearing housing assembly 204 includes: the grinding shaft 2058, the grinding body bearing chamber 2041, the magnetic grating ruler 2042, the connecting frame 2044 and the grinding body bearing chamber 2041 are of an integrated structure, the first aligning roller bearing 2045, the second aligning roller bearing 2046, the spherical roller thrust bearing 2049, the bearing spacer 2050, the bearing gasket 2053, the first bearing chamber gland 2054, the second bearing chamber gland 2055, the bearing chamber sleeve 2056 and the like.

As shown in fig. 2 to 4, the grinding shaft 2058 is sleeved on the grinding body bearing chamber 2041, the magnetic grating ruler 2042 is installed on one side of the grinding body bearing chamber 2041, and the magnetic grating ruler shield 2043 is sleeved outside the magnetic grating ruler 2042, so that a certain protection effect is achieved. The two sides of the grinding body bearing chamber 2041 are designed into a flat plate shape and are respectively connected with the sliding block 304, and the sliding block 304 is in sliding connection with the guide rail 302 arranged on the frame 300. A coupling frame 2044 is provided at the bottom of the grinding body bearing chamber 2041, the coupling frame 2044 and the grinding body bearing chamber 2041 are integrally formed, and the grinding body bearing chamber 2041 is coupled to the worm gear lifter 306 by the coupling frame 2044. The servo motor 1142 and the worm gear lifter 306 are adopted to control the sliding of the grinding body bearing chamber 2041 on the guide rail 302 of the frame 300 to control the feeding and retracting of the high-concentration grinding, and the servo motor 1142 and the magnetic grating 2042 form a closed loop, so that the precision of the driving feeding and retracting is greatly improved. The magnetic grating ruler 2042 can accurately reflect the distance of the cutter advancing and retreating of the grinding body bearing chamber 2041. The two sides of the grinding body bearing chamber 2041 are respectively connected to the sliding blocks 304, so that plane-to-plane matching and surface-to-surface contact are realized, the positioning precision is greatly improved, the runout of the grinding disc during shafting rotation is avoided to a certain extent, lubricating oil can be better reserved, and the abrasion condition is greatly improved.

The first and second self-aligning roller bearings 2045 and 2046 are mounted on the inner sides of both ends of the grinding body bearing chamber 2041 via round nuts 2047 and round nut stop washers 2048, respectively, and fit over the grinding shaft 2058, so that the weight of the hot-grinding rotor unit can be borne. A spherical roller thrust bearing 2049 is sleeved on the grinding shaft 2058 to bear the axial force of the hot grinding rotor unit. A bearing spacer ring 2050 is arranged between the spherical roller thrust bearing 2049 and the first aligning roller bearing 2045, the bearing spacer ring 2050 is sleeved on the grinding shaft 2058, a spring hole 2051 is milled on the bearing spacer ring 2050, a pre-tightening spring 2052 is arranged in the spring hole 2051, 12 spring holes 2051 are generally designed on the bearing spacer ring 2050, and 12 pre-tightening springs 2052 are arranged to realize pre-tightening of the spherical roller thrust bearing 2049. The grinding shaft 2058 is sleeved with a bearing washer 2053 which is closely adjacent to the spherical roller thrust bearing 2049, so that the contact area between the spherical roller thrust bearing 2049 and the grinding shaft 2058 is enlarged. The first bearing chamber pressure cover 2054 and the second bearing chamber pressure cover 2055 are respectively installed at two ends of the grinding body bearing chamber 2041, wherein a bearing chamber sleeve 2056 is arranged between the first bearing chamber pressure cover 2054 and the grinding body bearing chamber 2041, which are positioned at the same end of the spherical roller thrust bearing 2049, and the bearing is made into a split type, so that the bearing is convenient to install, and the function of fixing the hot grinding rotor unit can be also realized. The first TC oil seal 2057 is provided between the first bearing chamber pressure cover 2054, the second bearing chamber pressure cover 2055 and the grinding shaft 2058, so that entry of dust on the atmosphere side and outflow of lubricating oil in the grinding body bearing chamber 2041 can be prevented, and the bearing in the grinding body bearing chamber 2041 can be cooled in addition to lubrication by adopting a circulating oil supply method.

Further, as shown in fig. 5 and 6, the grinding head assembly 202 includes: grinding body 2021, grinding body upper cover 2022, grinding cover 2023, grinding cover bushing 2024, stationary disc 2026, first grinding disc 2027, stationary disc bushing 2028, thermal grinding disc seat 2029, thermal grinding disc 2030, second grinding disc 2031, grinding pulp deflector 2032, and the like. The grinding body 2021 and the upper cover 2022 of the grinding body are matched to serve as a grinding main body, so that the grinding disc, the movable disc material shifter 2033 and the like can be replaced by only disassembling the upper cover 2022 of the grinding body under the condition of not being disassembled greatly, and the maintenance and the repair are convenient. The grinding cover 2023 is matched with the grinding body 2021, the grinding cover 2024 is opened in the central area of the grinding cover 2023 and is nested and installed, the grinding cover 2024 and the feeding barrel 102 of the feeding mechanism 100 are matched and installed to realize feeding, the first key strip 2025 is arranged on the grinding cover 2024 and forms a slurry conveying channel with the feeding barrel 102, so that slurry is conveniently conveyed to the pulping mechanism 200 through the feeding mechanism 100, and conveying stability is higher. A static disc 2026 is arranged in the mill body 2021, one side of the static disc 2026 is connected with the mill cover 2023, the other side of the static disc 2026 is connected with the first mill 2027, the effect of fixing the first mill 2027 is achieved, a central area of the static disc 2026 is opened, a static disc lining 2028 is installed in a nested mode, and after feeding, the static disc lining 2028 and the milling material shifter 2032 form a closed area. One side of the thermal grinding disc 2030 is connected with the thermal grinding disc seat 2029, the other side is connected with the second grinding disc 2031, the connection and fixation functions of the second grinding disc 2031 are achieved, the thermal grinding disc seat 2029 is fixedly arranged on the grinding shaft 2058 through conical surface interference, and the second grinding disc 2031 rotates under the driving of the grinding shaft 2058 so as to be matched with the first grinding disc 2027 to realize pulp grinding. The thermal grinding disc 2030 is provided with a grinding material deflector 2032, the grinding material deflector 2032 is matched with the static disc lining 2028, the static disc lining 2028 and the grinding material deflector 2032 form a closed area, the grinding material deflector 2032 deflects the conveyed pulp to a grinding area between the first grinding disc 2027 and the second grinding disc 2031, and the grinding efficiency and the grinding effect can be improved.

The grinding disc can adopt a 48-inch grinding disc or a 46-inch grinding disc.

Further, as shown in fig. 6, a movable disk material shifter 2033 and a back lining key bar 2034 are mounted on the thermal grinding disk base 2029, the movable disk material shifter 2033 is mounted on the outer peripheral surface of the thermal grinding disk base 2029, and the back lining key bar 2034 is mounted on the rear side of the thermal grinding disk base 2029 and matches with the inner side wall of the grinding body 2021. Thus, when the cutter is retracted, the slurry adhering to the upper cover 2022 of the mill body and the mill body 2021 can be scraped off, and the clogging prevention effect is achieved to some extent.

Further, as shown in fig. 1, 7 and 8, the feeding mechanism 100 includes: a feed cartridge 102, a feed hopper 104, a feed upper hopper 106, a feed bearing chamber assembly 108, a feed power mechanism 114, a feed sealing mechanism, a feed hopper end cap 112 sleeve, and the like. One end of the feeding barrel 102 is connected with the grinding head assembly 202, and the other end is connected with the feeding hopper 104 to form a material conveying channel. The top of the feed hopper 104 is provided with the upper feed hopper 106, and the upper feed hopper 106 is communicated with the feed hopper 104, so that the distance between the high-concentration grinding feed mechanism 100 and a material system is greatly shortened, and materials fall into the feed hopper 104 more accurately. The feeding bearing chamber assembly 108 is connected with the other end of the feeding hopper 104, and comprises a conveying screw shaft 1081 and a feeding bearing chamber 1082 sleeved on the conveying screw shaft 1081, wherein the screw end of the conveying screw shaft 1081 stretches into the feeding hopper 104, the other end of the conveying screw shaft 1081 is connected with the feeding power mechanism 114, and under the action of the conveying screw shaft 1081, materials enter the pulping mechanism 200 along the feeding barrel 102, so that the material conveying efficiency is high. The feeding seal structure 110 is arranged between the feeding bearing chamber 1082 and the feeding hopper 104, the feeding hopper end cover 112 is sleeved at the connection position of the feeding bearing chamber 1082 and the feeding hopper 104, the feeding bearing chamber 1082, the feeding hopper 104 and the feeding seal structure 110 are connected into a whole, on one hand, the feeding hopper 104 forms a closed container, on the other hand, the feeding bearing chamber 1082 and the grinding cover 2023 bear the weight of the feeding upper hopper 106, the feeding hopper 104 and the feeding barrel 102, independent support is not needed, the feeding structure is simplified, and the occupied space is saved.

Further, as shown in fig. 1 and 7, the second key 1021 is welded on the feeding cylinder 102, so that the rotation of the material along the circumferential direction in the conveying process can be prevented, and the material conveying efficiency can be improved. As shown in fig. 7 and 8, the feeding hopper 104 has a V-shaped structure with an arc bottom, so that the material slides into the bottom of the feeding hopper 104 along the side wall of the feeding upper hopper 106 under the action of gravity, and enters the feeding barrel 102 under the action of a conveying screw. The screw end of the conveying screw shaft 1081 is hollow, so that the weight of the conveying screw shaft 1081 is greatly reduced, in addition, the swing of the conveying screw shaft 1081 in rotation is reduced, and the conveying stability is greatly improved.

Further, as shown in fig. 1 and 9, the feed bearing chamber assembly 108 includes: the conveying screw shaft 1081, a feed bearing chamber 1082, a large pulley 1083, an angular contact bearing 1084, a cylindrical roller bearing 1085, a first feed bearing chamber gland 1086, a second feed bearing chamber gland 1087, a second TC oil seal 1088, and the like, which are provided on the conveying screw shaft 1081 in a sleeved manner. The spiral end of the conveying screw shaft 1081 goes deep into the feeding hopper 104, the other end of the conveying screw shaft 1081 is sleeved with a large belt wheel 1083, the large belt wheel 1083 is connected with the feeding power mechanism 114 to provide rotary power for the conveying screw shaft 1081, and under the action of the conveying screw shaft 1081, materials enter the pulping mechanism 200 along the feeding barrel 102. One end of the feed bearing chamber 1082, which is close to the large belt wheel 1083, is provided with two angular contact bearings 1084 in a back-to-back manner, and the other end is provided with a cylindrical roller bearing 1085, so that the feed bearing chamber can bear bidirectional axial force, and the radial bearing capacity of the bearing is greatly improved. The first feeding bearing chamber cover 1086 and the second feeding bearing chamber cover 1087 are respectively installed at two ends of the feeding bearing chamber 1082, a TC oil seal is arranged between the first feeding bearing chamber cover 1086 and the second feeding bearing chamber cover 1087 and the conveying screw shaft 1081, and bearing lubrication in the feeding bearing chamber 1082 is lubricated by oil bath, so that dust on the air side can be prevented from entering, and lubricating oil in the feeding bearing chamber 1082 can be prevented from flowing out.

Further, as shown in fig. 1 and 10, the feed sealing structure 110 includes: a first sleeve 1101, a seal ring 1103, a packing 1104, a packing seal 1105, a straight through tap 1106, a packing gland 1108, and the like. The first shaft sleeve 1101 is sleeved on the conveying screw shaft 1081, sealing grooves 1102 are formed in two ends of the first shaft sleeve, and sealing rings 1103 are clamped in the sealing grooves 1102, so that the tightness of two ends of the connection position of the feeding bearing chamber 1082 and the feeding hopper 104 is good. The packing 1104 is sleeved on the first shaft sleeve 1101, the packing sealing body 1105 is sleeved on the packing 1104, an opening is formed in the packing sealing body 1105, the through water nozzle 1106 is installed at the opening, a packing ring 1107 is filled in the area between the first shaft sleeve 1101 and the packing sealing body 1105 which are in the same axial direction with the through water nozzle 1106, the sealing performance is good, the packing ring is not in direct contact with the conveying screw shaft 1081, and the shaft body is not easy to damage. The packing gland 1108 is sleeved on the first shaft sleeve 1101, the packing gland 1108 is matched with the packing gland 1105 to extrude the packing 1104 into an inner space formed by the packing gland 1108, the packing gland 1108 is in clearance fit with the outer peripheral surface of the first shaft sleeve 1101 through a fastening screw 1109 and a spring washer 1110, the end face of the packing gland 1108 is connected with the end face of the packing gland 1105 through bolt fastening, the packing gland 1108 is matched with the packing gland 1105 to extrude and fix the packing 1104, and the connection and fixation of the whole feeding sealing structure 110 are realized.

Further, as shown in fig. 1, 11 and 12, the feeding power mechanism 114 includes: a motor base 1141, a motor 1142, a small pulley 1143, a SPA-type narrow V-belt 1144, a pulley shroud 1145, a first anchor bolt 1146, a tuning block 1147, and the like. The motor 1142 is a 6-stage motor 1142 mounted on a motor base 1141. The small pulley 1143 is mounted on the output shaft of the motor 1142, and the desired rotational speed of the conveying screw shaft 1081 is achieved by the deceleration of the small pulley 1143 and the large pulley 1083. The small pulley 1143 is connected to the large pulley 1083 by a narrow SPA V-belt 1144, the narrow SPA V-belt 1144 being able to withstand greater preload forces, and having higher speeds and flexible times, higher load carrying capacity and longer life. The arrangement of the motor base 1141 ensures the installation center distance of the small belt pulley 1143 and the large belt pulley 1083. A pulley shield 1145 is fixedly mounted on the motor base 1141, and the pulley shield 1145 is sleeved outside the SPA type narrow V-belt 1144 for protection. An adjusting block 1147 is arranged on the motor base 1141, the adjusting block 1147 is matched with the small belt pulley 1143, a bolt hole is formed in the adjusting block 1147, and tensioning and loosening of the belt pulley can be achieved through screwing in a bolt 1148. The four corners of the motor base 1141 are provided with anchor bolts for secure attachment to the ground.

Further, as shown in fig. 1, 13 to 15, and 3, the rack 300 includes: frame body 308, rails 302, sliders 304, worm gear elevators 306, elevator nut mounts 310, rail slots 312, first push-dials 314, second push-dials 316, frame front plate 3081, frame side plates 3082, M42 nuts and bolts 318, bearing housing cover plate 320, second anchor bolts 322, and the like. The frame body 308 connects the grinding body bearing chamber 2041 and the grinding head assembly 202, plays a certain supporting role on the grinding body bearing chamber 2041 and the grinding head assembly 202, and saves space occupation. The worm gear lifter 306 is installed inside the frame body 308, one end of the worm gear lifter 306 is connected with the grinding body bearing chamber 2041, the other end is connected with the lifter nut seat 310 fixedly installed on the frame body 308, and the servo motor 1142 drives the worm gear lifter 306 to control the grinding body bearing chamber 2041 to advance and retract, so that the cutter is controlled to advance and retract. The top of the frame body 308 is milled with a guide rail groove 312, the guide rail 302 is installed in the guide rail groove 312, two ends of the guide rail 302 are wedged and fixed through a first pushing and pulling block 314, a sliding block 304 is arranged on the guide rail 302, and the sliding block 304 on one side is wedged and fixed with a grinding body bearing chamber 2041 through a second pushing and pulling block 316, so that the accurate sliding of the sliding block 304 on the guide rail 302 is ensured. The frame body 308 comprises a frame front plate 3081 adjacent to the grinding head assembly 202, and a frame side plate 3082 connected with the frame front plate 3081, wherein an M42 nut and a bolt 318 are arranged on the frame front plate 3081 to mechanically limit a grinding body bearing chamber 2041, so that a first grinding disc 2027 on a hot grinding disc 2030 can be effectively prevented from being collided with a second grinding disc 2031 on a static disc 2026, and the grinding effect is ensured. The bearing housing cover 320 is mounted on the top surface of the frame body 308, and the bearing housing cover 320 is disposed above the grinding body bearing housing 2041 and the guide rail 302, so that on one hand, slurry can be prevented from flowing onto the bearing housing and the guide rail 302, and on the other hand, potential safety hazards during feeding and retracting of the cutter can be effectively reduced. Foundation bolts are mounted at the bottom of the frame body 308, so that the frame body is convenient to firmly fix on the ground.

Further, as shown in fig. 1, 16 and 17, a grinding seal structure 206 is disposed between the grinding body bearing chamber 2041 and the grinding head assembly 202, and the grinding seal structure 206 includes: the second sleeve 2061 sleeved on the grinding shaft 2058 and the steam seal body 2062 sleeved on the second sleeve 2061 have simple structure and convenient manufacture, and the steam seal body 2062 is sleeved on the second sleeve 2061, so that the shaft is prevented from being scratched by the direct contact of the steam seal body 2062 and the shaft, and a certain protection effect is achieved on the shaft. The steam seal body 2062 comprises a steam seal shell 2062-1, a plurality of grate teeth 2062-2 and a plurality of spacing rings 2062-3, wherein the grate teeth 2062-2 and the spacing rings 2062-3 are arranged alternately, the grate teeth 2062-2 are in clearance fit with the steam seal shell 2062-1, the plurality of grate teeth 2062-2 and the plurality of spacing rings 2062-3 are connected and fixed on the steam seal shell 2062-1 through long bolts and nuts, the matched parts of the grate teeth 2062-2 and the second shaft sleeve are arranged by adopting cone tips, and when the steam seal body 2062 is contacted with the shaft sleeve, the cone tips fall off to play a role in protecting the shaft sleeve. The grating teeth 2062-2 and the spacing ring 2062-3 form an expansion space for gas, and a small amount of clearance is reserved between the grating teeth 2062-2 and the second shaft sleeve, so that the purpose of throttling can be achieved. The gas flows through the gaps between the grating teeth 2062-2 and the shaft sleeve to generate great energy loss, the pressure is reduced after the gas passes through the expansion space, the fluid passes through the flow channel formed by a plurality of throttling gaps and the expansion space, and the gas pressure head is greatly reduced, so that the gas is difficult to leak, thereby achieving the aim of sealing.

The working process of the high-concentration pulping machine provided by the invention is as follows:

the wood chips are thrown from above the feeding upper hopper 106 and fall into the feeding hopper 104, the motor 1142 drives the small belt pulley 1143 to rotate, thereby driving the large belt pulley 1083 to rotate, driving the conveying screw shaft 1081 to rotate, and the wood chips are conveyed to a pulping area along the feeding barrel 102 under the action of the conveying screw shaft 1081. The worm gear lifter 306 pushes the grinding body bearing chamber 2041 to move along the guide rail 302 on the frame 300 to realize the cutter feeding and retracting, and the motor drives the grinding shaft 2058 in the hot grinding rotor unit to rotate, so that the second grinding disc 2031 on the hot grinding disc 2030 is driven to rotate and is matched with the first grinding disc 2027 on the static disc 2026, and the wood chips are ground into good pulp and then discharged from a port below the grinding body 2021. During tool withdrawal, the movable disk material shifter 2033 and the backing key 2034 mounted on the thermal mill movable disk housing 2029 can scrape off the slurry adhering to the mill body upper cover 2022 and the mill body 2021.

In the present invention, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A high consistency refiner comprising: feeding mechanism, pulping mechanism and frame that the cooperation set up, pulping mechanism includes: grinding head subassembly and grinding body bearing chamber subassembly that the cooperation set up, grinding body bearing chamber subassembly includes:

the grinding head assembly is arranged at one end of the grinding shaft;

The grinding body bearing chamber is sleeved on the grinding shaft;

The magnetic grating ruler is arranged on one side of the grinding body bearing chamber;

The machine frame is provided with a guide rail, the guide rail is provided with a sliding block, and two sides of the bearing chamber of the grinding body are designed to be flat plates and are respectively connected with the sliding block;

The grinding body bearing chamber is connected with a worm gear lifter through a connecting frame arranged at the bottom, the worm gear lifter is driven by a servo motor to drag the grinding body bearing chamber to slide on a guide rail, the servo motor and the magnetic grating ruler form a closed loop, and the driving and the reversing of the grinding body bearing chamber are controlled;

The first self-aligning roller bearing and the second self-aligning roller bearing are respectively sleeved on the grinding shaft, and are respectively installed at the inner sides of two ends of the grinding body bearing chamber through round nuts and stop washers for the round nuts;

The spherical roller thrust bearing is sleeved on the grinding shaft, a bearing spacer ring is arranged between the spherical roller thrust bearing and the first aligning roller bearing, the bearing spacer ring is sleeved on the grinding shaft, a spring hole is milled on the bearing spacer ring, a pre-tightening spring is arranged in the spring hole, and the pre-tightening spring is matched with the spherical roller thrust bearing to pre-tighten the spherical roller thrust bearing;

the bearing gasket is sleeved on the grinding shaft and is arranged close to the spherical roller thrust bearing;

The first bearing chamber gland and the second bearing chamber gland which are matched are sleeved on the grinding shaft, and the first bearing chamber gland and the second bearing chamber gland are respectively arranged at two ends of the grinding body bearing chamber, wherein a bearing chamber sleeve is arranged between the first bearing chamber gland and the grinding body bearing chamber and is positioned at the same end with the spherical roller thrust bearing, and a first TC oil seal is arranged between the first bearing chamber gland and the second bearing chamber gland and the grinding shaft.

2. The high consistency refiner of claim 1, wherein the refiner head assembly comprises:

the grinding body and the upper cover of the grinding body are matched;

the grinding cover is matched with the grinding body, an opening is formed in the central area of the grinding cover, a grinding cover bushing is installed in a nested manner, the grinding cover bushing is matched with the feeding cylinder, a first key bar is arranged on the grinding cover bushing, and a slurry conveying channel is formed between the grinding cover bushing and the feeding cylinder;

The static disc is arranged in the grinding body, one side of the static disc is connected with the grinding cover, the first grinding disc is arranged on the other side of the static disc, and the central area of the static disc is open and is provided with a static disc bushing in a nested manner;

The hot grinding disc seat is fixedly arranged on the grinding shaft through conical surface interference and is arranged in the grinding body;

The hot grinding disc is arranged in the grinding body, one side of the hot grinding disc is connected with the hot grinding disc seat, and the second grinding disc is arranged on the other side of the hot grinding disc;

And the pulping and stirring device is arranged on the thermal grinding movable disc, the pulping and stirring device is matched with the static disc bushing, after feeding, the static disc bushing and the pulping and stirring device form a closed area, and the pulping and stirring device stirs the conveyed pulp to a pulping area between the first grinding disc and the second grinding disc.

3. The high consistency refiner as claimed in claim 2, wherein,

The hot grinding disc seat is provided with a moving disc stirring device and a rear lining key bar, the moving disc stirring device is arranged on the outer peripheral surface of the hot grinding disc seat, and the rear lining key bar is arranged on the rear side of the hot grinding disc seat and is matched with the inner side wall of the grinding body.

4. A high consistency refiner according to any one of claims 1-3, characterized in that the feed mechanism comprises:

the feeding cylinder is connected with the grinding head assembly at one end;

one end of the feeding hopper is connected with the other end of the feeding barrel;

The feeding upper hopper is arranged at the top of the feeding hopper and is communicated with the feeding hopper;

The feeding bearing chamber assembly is connected with the other end of the feeding hopper and comprises a conveying screw shaft and a feeding bearing chamber sleeved on the conveying screw shaft, the screw end of the conveying screw shaft penetrates into the feeding hopper, and the other end of the conveying screw shaft is connected with a feeding power mechanism;

The feeding bearing chamber is provided with a feeding sealing structure, and a feeding hopper end cover is sleeved at the connecting position of the feeding bearing chamber and the feeding hopper and is connected with the feeding bearing chamber, the feeding hopper and the feeding sealing structure into a whole.

5. The high consistency refiner as claimed in claim 4, wherein,

The feeding cylinder is welded with a second key bar, the feeding hopper is of a V-shaped structure with an arc bottom, and the spiral end of the conveying spiral shaft is of a hollow structure.

6. The high consistency refiner of claim 4, wherein the feed bearing chamber assembly further comprises:

The large belt wheel is sleeved at the other end of the conveying screw shaft and connected with the feeding power mechanism;

the two angular contact bearings are arranged on one end, close to the large belt wheel, of the feeding bearing chamber back to back, and the angular contact bearings are sleeved on the conveying screw shaft;

The cylindrical roller bearing is arranged at the other end of the feeding bearing chamber and sleeved on the conveying screw shaft;

the first feeding bearing chamber gland and the second feeding bearing chamber gland which are matched are sleeved on the conveying screw shaft, the first feeding bearing chamber gland and the second feeding bearing chamber gland are respectively installed at two ends of the feeding bearing chamber, and a second TC oil seal is arranged between the first feeding bearing chamber gland and the second feeding bearing chamber gland and the conveying screw shaft.

7. The high consistency refiner of claim 4, wherein the feed seal comprises:

The first shaft sleeve is sleeved on the conveying screw shaft, sealing grooves are formed in the two ends of the first shaft sleeve, and the sealing rings are clamped in the sealing grooves;

the packing is sleeved on the first shaft sleeve;

the packing sealing body is sleeved on the packing, an opening is formed in the packing sealing body, a through water nozzle is arranged at the opening, and a packing ring is filled in the area between the first shaft sleeve and the packing sealing body, which is in the same axial direction with the through water nozzle;

the packing gland is sleeved on the first shaft sleeve, the packing gland is matched with the packing sealing body, the packing is extruded in an inner space formed by the packing gland, the packing gland is in clearance fit with the outer peripheral surface of the first shaft sleeve through a fastening screw and a spring washer, and the end face of the packing gland is in fastening connection with the end face of the packing sealing body through a bolt.

8. The high consistency refiner of claim 5, wherein the feed power mechanism comprises:

A motor base;

The motor is arranged on the motor base, a small belt wheel is arranged on an output shaft of the motor, and the small belt wheel is connected with a large belt wheel sleeved at the other end of the conveying screw shaft through an SPA narrow V belt;

the belt pulley protective cover is fixedly arranged on the motor base and sleeved on the outer side of the SPA narrow V belt;

the first foundation bolts are arranged at four corners of the motor base;

The regulating block is arranged on the motor base, the regulating block is matched with the small belt pulley, a bolt hole is formed in the regulating block, and the tension of the small belt pulley is regulated by screwing in the bolt.

9. The high consistency refiner of claim 1, wherein the frame comprises:

The frame body is connected with the grinding body bearing chamber and the grinding head assembly;

The worm gear and worm lifter is arranged in the frame body, one end of the worm gear and worm lifter is connected with the grinding body bearing chamber, the other end of the worm gear and worm lifter is connected with the lifter nut seat, and the lifter nut seat is fixedly arranged on the frame body;

the top of the frame body is milled with a guide rail groove, the guide rail is arranged in the guide rail groove, the two ends of the guide rail are wedged and fixed through a first pushing and shifting block, the sliding block is arranged on the guide rail, and the sliding block at one side is wedged and fixed with the grinding body bearing chamber through a second pushing and shifting block; the machine frame body comprises a machine frame front plate adjacent to the grinding head assembly and a machine frame side plate connected with the machine frame front plate, and M42 nuts and bolts are arranged on the machine frame front plate so as to mechanically limit the grinding body bearing chamber;

The bearing chamber cover plate is arranged on the top surface of the frame body and covers the upper parts of the grinding body bearing chamber and the guide rail;

and the second foundation bolt is arranged at the bottom of the frame body.

10. The high consistency refiner of claim 1, wherein a seal is provided between the refiner body bearing chamber and the refiner head assembly, the seal comprising:

The second sleeve is sleeved on the grinding shaft;

The steam seal body is sleeved on the second shaft sleeve, the steam seal body comprises a steam seal shell body, a plurality of grate teeth and a plurality of spacing rings, the grate teeth are alternately arranged with the spacing rings, the grate teeth are in clearance fit with the steam seal shell body, the plurality of grate teeth and the plurality of spacing rings are fixedly connected to the steam seal shell body through long bolts and nuts, and the matched parts of the grate teeth and the second shaft sleeve are arranged by conical points.