CN113584920A

CN113584920A - Production process of linseed pulp

Info

Publication number: CN113584920A
Application number: CN202110902549.XA
Authority: CN
Inventors: 何模祥; 苏宁东
Original assignee: Hefei Yinshan Cotton & Linen Co ltd
Current assignee: Hefei Yinshan Cotton & Linen Co ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2021-11-02

Abstract

The invention relates to a production process of linseed pulp, which comprises the following operation steps: cutting long flax fibers into short flax fibers, cooking the short flax fibers by using a cooking agent, bleaching the cooked feed liquid by using a bleaching agent, pulping the feed liquid and refining the pulp in sequence after bleaching so as to further shorten the length of the flax fibers in the feed liquid, and removing impurities from the feed liquid after refining the pulp to obtain the flax pulp. The technical scheme provided by the invention can be used for producing the linerboards and provides basis and support for the production of the linerboards.

Description

Production process of linseed pulp

Technical Field

The invention relates to the field of production of linseed pulp, in particular to a production process of linseed pulp.

Background

At present, few research reports on production processes and systems of flax pulp and flax pulp paper at home and abroad are reported, and the flax pulp paper has excellent paper performance and has a prospect of being applied as special paper. Therefore, it is necessary to conduct research and analysis on the production process and production system of flax pulp and flax pulp paper.

Disclosure of Invention

The invention provides a production process of linseed pulp.

The technical scheme adopted by the invention is as follows: a production process of linseed pulp comprises the following operation steps:

cutting long flax fibers into short flax fibers, cooking the short flax fibers by using a cooking agent, bleaching the cooked feed liquid by using a bleaching agent, pulping the feed liquid and refining the pulp in sequence after bleaching so as to further shorten the length of the flax fibers in the feed liquid, and removing impurities from the feed liquid after refining the pulp to obtain the flax pulp.

The specific operation is as follows: the length of the short flax fibers after cutting treatment is 4.5-5.5 mm, and the length of the flax fibers in the feed liquid after fine sizing treatment is 1.5-2.1 mm.

The cooking agent is prepared from alkali liquor and H2O2, 10 tons of alkali liquor and 800 kilograms of H2O2 are added into each 2 tons of short flax fiber for mixed cooking during cooking treatment, and the concentration of the alkali liquor is 30 g/L.

During the cooking treatment, the temperature is increased according to the following conditions:

pouring the feed liquid after cooking into a ball discharging pool, adding water to dilute the feed liquid until a propeller in the ball discharging pool can push the feed liquid, adjusting the temperature of the feed liquid to 38-42 ℃, adding 100 kg of sodium hypochlorite, pushing the propeller for 15min, then performing solid-liquid separation, cleaning the solid-liquid separation with clear water for three times, adding water after cleaning, pushing the clean water uniformly by the propeller, then adding 150 kg of sodium hypochlorite, pushing the propeller for 20min, adding 15 kg of chlorine dioxide and 1.5 kg of activating agent, pushing the propeller for 20min, finally adding 75 kg of hydrogen peroxide, and continuing to push for 20min to complete the bleaching operation.

Pulping the bleached feed liquid by using a Holland type pulping machine, wherein the pulping time is 80min, the working current of the first 30min is 130A, and the working current of the last 50min is as follows: 150A.

And (3) carrying out fine pulp treatment on the beaten material liquid by adopting a large-taper D800 fine pulp machine, wherein the fine pulp treatment time is 90min, and the working current is 320-330A.

Before pulping, the concentration of the feed liquid is diluted to 3%, and the length of the flax fiber in the feed liquid after pulping is 2.8-3.0 mm.

And carrying out deslagging treatment on the feed liquid after the fine sizing treatment by adopting a two-stage four-section process.

Before deslagging treatment, feed liquid is diluted to make the concentration in the feed liquid be less than or equal to 0.5%.

The technical scheme provided by the invention can be used for producing the linerboards and provides basis and support for the production of the linerboards.

Drawings

Fig. 1 is a schematic distribution diagram of a linerboard production system on an A, B, C mounting platform;

FIG. 2 is a schematic diagram of the assembly of the compounding unit, the cooking unit and the bleaching unit;

FIG. 3 is a schematic diagram of a pulp making unit;

FIG. 4 is a schematic diagram of the composition of the dehydration unit;

FIG. 5 is a schematic view of the assembly of the cooking ball and the ball cover assembly;

FIG. 6 is a top view of the completed assembly of the cover on the boiling ball;

FIG. 7 is a schematic structural view of the ball cover;

FIG. 8 is a front view of the ball cover;

FIG. 9 is a side view of the ball cover;

FIG. 10 is a top view of the ball cover;

FIG. 11 is a schematic structural view of the ball cover assembling device for assembling the ball cover;

FIG. 12 is a front view of FIG. 7;

FIG. 13 is a side view of FIG. 7;

FIG. 14 is a schematic structural view of a clamping mechanism and a setting mechanism;

FIG. 15 is a schematic structural view of a cover clamping mechanism and a cover adjusting mechanism;

FIG. 16 is a schematic diagram of the lifting adjustment assembly of the B1 stand after adjusting the B1 lifting stand to lift;

FIG. 17 is a schematic view of the bracket lift adjustment assembly B2 adjusting the B2 lift bracket to a lowered position;

FIG. 18 is a partial right side view of FIG. 17;

FIG. 19 is a cross-sectional view A-A of FIG. 18;

FIG. 20 is a schematic structural view of the clamping portion A2 and A3;

FIG. 21 is a schematic view of a structure of a clamping unit;

FIG. 22 is a right side view of FIG. 21;

FIG. 23 is a schematic structural view of the assembly of FIG. 12A after separation from the cover or before assembly;

FIG. 24 is a schematic structural view of the clip cover bracket A of FIG. 23 after rotating 90 degrees around the vertical direction;

fig. 25 is a schematic structural view of the cover body in fig. 24 rotated to an inclined state about the assembly axis a.

Correspondence of reference numbers and components in the figures:

001-A mounting platform, 002-B mounting platform, 003-C mounting platform, 010-screw extrusion pre-dipping machine, 011-hopper, 012-wind feeding material pipeline, 013-transition guide chute, 014-distribution chute, 015-A1 walking frame, 016-A2 walking frame, 017-spiral extrusion rod, 018-discharge adjusting piece, 019-discharge adjusting cylinder, 021-ball lower pool, 022-partition wall, 030-uniform distribution chute, 031-step structure, 032-material baffle plate, 040-pulp-making filter belt, 041-air suction hood and 042-water extrusion roller; 100-spherical cap assembling device, 111-A clamping cover piece, 112-A clamping cover bracket, 113-A turntable, 114-A1 abutting lifting adjusting piece, 115-A1 abutting adjusting piece, 116-A clamping cover adjusting block, 117-A connecting rope, 118-B1 lifting bracket, 119-A2 rotating adjusting part, 120-A1 clamping rod, 121-A1 clamping block, 122-A1 follow-up adjusting block, 123-A1 moving piece, 124-A moving beam, 125-A nut adjusting motor, 126-A lifting adjusting rod, 127-A3 transition gear, 128-A lifting transition connecting rod, 129-B21 spacing adjusting piece, 131-A2 clamping sleeve, 132-A3 sleeve, 133-magnet assembly, 134-A3 spring, 135-A3 floating elastic sheet, 136-A3, driving gear, 134-A3 spring, 141-B21 crossbeam, 142-B21 sliding sleeve, 143-B22 crossbeam, 144-B22 sliding sleeve, 145-A movable cross bar, 146-B22 spacing adjusting piece, 150-lifting platform, 151-B2 lifting guide rod, 152-B2 bracket lifting adjusting component, 153-B1 lifting guide rod, 154-B1 bracket lifting adjusting component, 155-assembly lifting adjusting mechanism, 200-cooking ball and 201-material port, 210-cover body, 211-A connecting block, 212-A connecting lug, 213-A assembling shaft, 214-A movable nut, 215-A threaded rod, 216-A1 connecting groove, 217-A cross bar, 218-A2 connecting groove, 219-A1 clamping groove, 220-rotating shaft, 230-driving wheel, 241-A11 side and 242-A12 side.

Detailed Description

In order that the objects and advantages of the invention will be more clearly understood, the following description is given in conjunction with the accompanying examples. It is to be understood that the following text is merely illustrative of one or more specific embodiments of the invention and does not strictly limit the scope of the invention as specifically claimed.

In the technical scheme provided by the invention, except for the device structure and the method which are specially described, the device structure and the method which are not described in detail are all implemented by adopting the device structure and the method which are used in the existing market and realize the same function and purpose, and the details of the prior art are not repeated. The system provided by the invention is obtained by improving the traditional production system of the cotton pulp board, except the improvement part described in the invention, and the rest parts are implemented according to the existing production scheme of the cotton pulp board.

As shown in fig. 1, the production system for a flax paper board provided by the present invention includes a mixing unit for mixing and pre-immersing short flax fibers and cooking liquor, a cooking unit for cooking a material mixed by the mixing unit, a bleaching unit for bleaching the cooked material, a refining unit for refining fibers in the bleached material, an impurity removing unit for removing impurities from the bleached material, a concentrating unit for concentrating the bleached material, a pulp making unit for making pulp from the concentrated material, a dewatering unit for drying a wet paper tape after making pulp, and a slitting unit for slitting the dried paper tape to make a flax paper board with a preset size.

The concrete scheme does, and production system installs in the factory building, and the factory building has set gradually A, B, C mounting platform 003 from top to bottom, and the compounding unit sets up on A mounting platform 001, and the unit of cooking, the unit of refining, edulcoration unit and concentrated unit set up on B mounting platform 002, and the unit of bleaching, copying dregs of rice unit, dehydration unit and cutting the unit setting are on C mounting platform 003, and compounding unit, the unit of cooking and the unit of bleaching are arranged from top to bottom corresponding in proper order. A. B, C the installation platform 003 is composed of floors of third floor, second floor and first floor.

The device also comprises a feeding device which is arranged on the A mounting platform 001 and used for feeding short flax fibers, wherein the mixing unit comprises a screw extrusion pre-soaking machine 010, a feed inlet of the screw extrusion pre-soaking machine 010 is provided with a hopper 011, the feeding device is communicated and connected with the hopper 011 through an air feeding material pipeline 012, the screw extrusion pre-soaking machine 010 is connected with a cooking agent storage tank through a conveying pipeline, a discharge outlet of the screw extrusion pre-soaking machine 010 is provided with a transition guide chute 013 arranged along the discharge outlet, a notch of the transition guide chute 013 is provided with a distribution trough 014, the distribution trough 014 and the transition guide chute 013 are vertically arranged, an A discharge outlet is arranged on the distribution trough 014, the distribution trough 014 is fixed on the A1 walking frame 015, the A1 walking frame 015 is movably mounted along the groove length direction of the distribution trough 014, the cooking unit comprises cooking balls which are arranged on the A mounting platform 001 at intervals along the groove length direction of the distribution trough 014, boiling ball rotates the installation and is provided with the material mouth on it, material mouth department is provided with the ball lid that is used for detachable assembly, the top of distribution silo 014 still is provided with the ball lid assembly quality who is used for assembling and uninstalling the ball lid, ball lid assembly quality is through assembling elevating system over-and-under type assembly on A2 walking frame 016, A2 walking frame 016 is along the groove length direction movable mounting of distribution silo 014, adjust A1, A2 walking frame 016 removes and makes ball lid assembly quality and A discharge opening and the corresponding state of each boiling ball material loading mouth. As shown in fig. 2. The bleaching unit is composed of open ball lower tanks 021 which are respectively and correspondingly arranged below the boiling balls, the bottom of each ball lower tank 021 is provided with a propeller, the middle part of each ball lower tank 021 is provided with a partition wall 022, the propeller pushes materials in the ball lower tanks 021 to circularly move around the partition wall 022, and the bottom of each ball lower tank 021 is provided with a filter screen piece for realizing solid-liquid separation.

Discharge adjusting part 018 is arranged at the discharge port of screw extrusion preimpregnation machine 010, discharge adjusting part 018 is provided with two and divides two outsides of screw extrusion pole 017, discharge adjusting part 018 is an arc plate, one side of discharge adjusting part 018 near the feed inlet of screw extrusion preimpregnation machine 010 is connected with the casing of screw extrusion preimpregnation machine 010 in an articulated manner, discharge adjusting part 018 is connected with discharge adjusting cylinder 019, and discharge adjusting cylinder 019 adjusts the interval between discharge adjusting part 018 and the screw extrusion pole 017. The soakage between the short flax fibers and the cooking liquor can be changed by adjusting the distance between the short flax fibers and the cooking liquor.

The refining unit comprises a pulping subunit for pulping the materials and a fine pulp subunit for fine pulp treatment of the materials after pulping, the pulping subunit consists of various Holland type pulping machines, and the fine pulp subunit consists of various large-taper D800 refining machines. The impurity removal unit consists of cyclone desanders. The cyclone desander can form a two-stage four-section impurity removing mechanism according to the production of the traditional cotton pulp paper board.

The concentration unit consists of a cylinder thickener. The dreg-dipping unit comprises a dreg-dipping filter belt 040 for realizing solid-liquid separation, an evenly-distributed trough 030 is arranged at the feed end of the dreg-dipping filter belt 040, the bottom of the evenly-distributed trough 030 is arranged into a step-shaped structure 031 along the conveying direction of the dreg-dipping filter belt 040, the step-shaped structure 031 comprises horizontally-arranged table tops and vertically-arranged step surfaces, a baffle plate 032 is vertically arranged on each table top close to the dreg-dipping filter belt 040, the lower edge of the baffle plate 032 and the table tops are arranged in a separated manner, the distance between each baffle plate 032 and the table top on the lower side of the baffle plate 032 is gradually reduced along the conveying square distance of the dreg-dipping filter belt 040, a wringing roller 042 is arranged above the conveying tail end of the dreg-dipping filter belt 040, the wringing roller 042 is movably arranged, the position of the wringing roller 042 is adjusted to change the distance between the belt surface of the upper layer filter belt of the dreg-dipping filter belt 040 and the roller 042, a cover is arranged on the upstream of the wringing roller 042, and a draft hood is arranged on the upper portion of the wringing roller 042, The openings of the suction hood 041 are arranged corresponding to the upper filter belts between the lower filter belts. The dehydration unit comprises each extrusion dehydration subunit and the dry dehydration subunit of series arrangement, and the extrusion dehydration subunit includes dehydration conveyer belt and squeeze roll, and the extrusion force of squeeze roll increases along direction of delivery gradually on each extrusion dehydration subunit, and the dry dehydration subunit comprises each drying roller, and wet paper tape cladding is carried and is dried on the drying roller, and the inner chamber and the steam source of drying roller are linked together and are connected. The structure can effectively improve the efficiency of the rice pulp making and the dewatering.

The cooking ball 200 shown in fig. 5-11 is implemented, and comprises the cooking ball 200, wherein a material port 201 for feeding materials into the cooking ball 200 and discharging the materials is arranged on the cooking ball 200, a ball cover is arranged at the material port 201 and detachably assembled and connected with the cooking ball 200 through an assembly component A, the cooking ball 200 is rotatably assembled on a mounting seat through a rotating shaft 220, the rotating shaft 220 penetrates through the cooking ball 200, the rotating shaft 220 is a hollow shaft, a shaft cavity of the rotating shaft 220 is connected with a heating mechanism for heating the materials in the cooking ball 200, a driving wheel 230 is arranged at the other end of the rotating shaft 220, and the driving wheel 230 is a large gear.

As shown in fig. 7, 8, and 9, the ball cover includes a cover body 210, a length dimension of the cover body 210 is greater than a width dimension, the cover body 210 includes a first plate body portion and a second plate body portion, the first plate body portion and the second plate body portion are overlapped and connected into a whole, the first plate body portion and the second plate body portion have similar contour shapes, a contour dimension of the second plate body portion is consistent with a contour dimension of the material opening 201, and a contour dimension of the first plate body portion is greater than a contour dimension of the second plate body portion. The projection shape of the first plate body part and the second plate body part on the plane A is waist-shaped, the central point of the material recording port 201 is point A, the central point of the cooking ball 200 is point B, the straight line A is the connecting straight line of the point A and the point B, and the plane A is a plane vertical to the straight line A. The A assembly component comprises an A assembly unit, the A assembly unit comprises an A1 connector used for being detachably connected and matched with the ball cover, an A2 connector used for being detachably connected and matched with the outer surface of the cooking ball 200, the A1 connector and the A2 connector are connected through an A assembly adjusting piece, and the A assembly adjusting piece adjusts the distance between the A1 connector and the A2 connector. The number of the assembly units a is two, and the assembly units a are symmetrically distributed on two sides of the cover 210. The outer surface of the second plate body part is provided with an A1 connecting part, and the A1 connecting part and the A1 connecting part are detachably connected and matched in a buckling mode.

In detail, the a1 connection part is formed by a1 connection groove 216 formed on the outer surface of the second plate body part, the notch of the a1 connection groove 216 is formed in a closed shape, and the a1 connection part is formed by the a connection block 211 positioned in the a1 connection groove 216. The A2 connecting piece comprises a cross rod A217, the two ends of the cross rod A217 are erected on the outer wall surface of the cooking ball 200 on the two sides of the material opening 201, a through hole A is formed in the middle of the cross rod A217, the A assembly adjusting piece comprises a threaded rod A215, one end of the threaded rod A215 is formed by a connecting block A211, the middle of the threaded rod A215 is inserted into the through hole A in a penetrating mode, a movable nut A214 is arranged on the rod body of the threaded rod A215 on the outer side of the cross rod A217, and the movable nut A214 is screwed down to adjust the distance between the connecting block A211 and the cross rod A217. The groove length direction of the A1 connecting groove 216 is consistent with the length direction of the cover body 210, one side of the A1 connecting groove 216 close to the center of the cover body 210 is arranged to be in a blocking shape, the two ends of the A cross rod 217 are provided with A1 clamping grooves 219, the notches of the A1 clamping grooves 219 point to one side of the inner portion of the cooking ball 200, the groove length direction of the A1 clamping grooves 219 is consistent with the length direction of the cover body 210, a ring-shaped A convex strip is arranged on the outer surface of the cooking ball 200 outside the material opening 201, the projection of the A convex strip on the A plane is in a waist shape, the end portions of two straight lines on the A convex strip are marked as an A clamping position, the A1 clamping grooves 219 and the A clamping position are assembled in an inserting mode, and the A1 connecting groove 216 is arranged corresponding to the A clamping position. The A connecting block 211 is composed of a hexagonal bolt head, and the width of the opposite sides of the hexagonal bolt head is matched with the width of a groove cavity of the A1 connecting groove 216. Two A2 connecting grooves 218 are symmetrically arranged on the outer surface of the A cross bar 217, the groove length direction of the A2 connecting groove 218 is consistent with the length direction of the A cross bar 217, the A2 connecting groove 218 is a closed groove, and the end part of the A2 connecting groove 218 far away from the middle part of the A cross bar 217 is arranged in a blocking shape.

The outer surface of the second plate body portion is provided with an a engaging lug 212, the a engaging lug 212 is arranged perpendicular to the second plate body portion, an a fitting hole/a fitting shaft 213 is provided on the a engaging lug 212, and the hole centerline direction of the a fitting hole/a fitting shaft 213 is kept consistent with the width direction of the cover body 210. And a sealing ring is paved on the upper surface of the first plate body part. The upper rod section of the specific a-shaped threaded rod 215 is provided with a rod body having a hexagonal cross section.

The ball cover assembling apparatus is implemented as shown in fig. 11, and includes a cover clamping mechanism for clamping the cover 210, a cover adjusting mechanism for adjusting the posture of the cover 210 on the cover clamping mechanism, a clamping mechanism for clamping the assembly component a, and an adjusting mechanism for adjusting the posture of the assembly component a clamped on the clamping mechanism to realize the assembly between the cover 210 and the ball, wherein the cover clamping mechanism and the cover adjusting mechanism are installed on a B1 lifting bracket 118, the clamping mechanism and the adjusting mechanism are installed on a B2 lifting bracket, and a B1 lifting bracket and a B2 lifting bracket are respectively installed on the lifting platform 150.

As shown in fig. 12, 13, and 14, the cover clamping mechanism includes two a cover clamping members 111 disposed opposite to each other, the two a cover clamping members 111 are respectively provided with a cover clamping hole, the two a cover clamping members 111 are respectively movably mounted on the a cover clamping bracket 112, the a cover clamping bracket 112 is provided with an a cover clamping adjusting portion, and the a cover clamping adjusting portion is used for adjusting the two a cover clamping members 111 to approach to and separate from each other, so that the a cover clamping hole is assembled with and separated from two ends of an a assembly shaft 213 on the cover 210 (a connection lug 212).

The A clamping cover piece 111 is composed of A plate bodies which are vertically arranged, the two A clamping cover pieces 111 are installed in a floating mode along the direction of the distance between the two A clamping cover pieces 111 through A compression springs, the A clamping cover adjusting portion comprises two A clamping cover adjusting blocks 116 which are arranged in a sliding mode along the horizontal direction, the two A clamping cover adjusting blocks 116 are respectively connected with the two A clamping cover pieces 111, and the two A clamping cover adjusting blocks 116 are adjusted to move horizontally to achieve adjustment that the two A clamping cover pieces 111 are close to and far away from each other. The lid adjustment mechanism includes an a1 rotation adjustment portion that adjusts the lid body 210 to rotate about the a fitting shaft 213, and an a2 rotation adjustment portion 119 that adjusts the lid body 210 to rotate about the vertical direction. The two outer sides of the a-fitting shaft 213 are respectively marked as a11 side and a12 side (positions of

reference numerals

241 and 242 in fig. 4), the weight of the a 11-side cover body 210 is greater than that of the a 12-side cover body 210, an a1/a2 cover clamping hole is arranged at one corner of the lower end of the a plate body, and the other corner of the lower end of the a plate body is used for abutting against the a 12-side cover body 210 to prevent the cover body 210 at the a12 side from being turned upwards from a horizontal position.

More specifically, as shown in fig. 15, 16, 17 and 18, the a1 rotation adjusting part includes a1 abutting against the adjusting piece 115, a1 abutting against the adjusting piece 115 and movably mounted on the a-clip cover bracket 112 in the vertical direction, a1 abutting against the adjusting piece 115 and abutting against the cover 210 on the a12 side so that the cover 210 rotates around the a-assembly shaft 213, the a-clip cover bracket 112 is rotatably mounted on the B1 lifting bracket 118, and the a1 rotation adjusting part adjusts the a-clip cover bracket 112 to rotate. The clamping mechanism comprises a clamping unit, the clamping unit comprises an A1 clamping part for clamping the A cross rod 217, an A2 clamping part for clamping the A threaded rod 215 and an A3 clamping part for clamping the A movable nut 214, and the adjusting mechanism comprises an A1 adjusting part for adjusting the A1 clamping part to be assembled and separated with the A cross rod 217, an A2 adjusting part for adjusting the A1 connecting groove 216 to be assembled and separated with the A connecting block 211 at the lower end of the A threaded rod 215 and an A3 adjusting part for adjusting the A movable nut 214 to rotate. The A1 clamping part comprises two oppositely arranged A1 clamping rods 120, the lower ends of the A1 clamping rods 120 are provided with A1 clamping blocks 121 used for being clamped and assembled with the A2 connecting grooves 218, the upper ends of the A1 clamping rods 120 are assembled with the B2 lifting support in a sliding mode, the A1 clamping blocks 121 are formed by hexagon bolt heads, the width of the opposite sides of the A1 clamping blocks 121 is matched with the width of groove cavities of the A2 connecting grooves 218, and the A1 adjusting part is used for adjusting the two A1 clamping rods 120 to be close to and far away from each other. The A2 clamping part comprises an A2 clamping sleeve 131 for clamping the upper end of the A threaded rod 215, an A2 clamping sleeve 131 is provided with an A2 restraining piece for restraining the upper end of the A threaded rod 215 from moving out of the A2 clamping sleeve 131, the A2 restraining piece is composed of a magnet assembly 133, the A3 clamping part comprises an A3 sleeve 132, the A3 sleeve 132 and the A2 clamping sleeve 131 are rotatably assembled, an A3 floating elastic piece 135 is arranged in the A3 sleeve 132, the A3 floating elastic piece 135 is installed in the A3 sleeve 132 in a floating mode through an A3 spring 134, the A3 spring 134 drives the A3 floating elastic piece 135 to move downwards, the A3 sleeve 132 is provided with an A3 driving gear 136, the A3 adjusting part is connected with the A3 driving gear 136, and the A2 adjusting part adjusts the A2 to move along the length direction of the A connecting groove.

The more detailed operation is: the B1 lifting support 118 is slidably mounted on the lifting platform 150 through a B1 lifting guide rod 153, the B2 lifting support is slidably mounted on the lifting platform 150 through a B2 lifting guide rod 151, the lifting platform 150 is provided with a B1 support lifting adjusting component 154 for adjusting the B1 lifting support 118 to lift and a B2 support lifting adjusting component 152 for adjusting the B2 lifting support to lift, and the lifting platform 150 is assembled in a lifting manner through an assembly lifting adjusting mechanism 155; the B1 and B2 bracket lifting adjusting component 152 can be formed by an air cylinder or an electric cylinder.

The B2 lifting support comprises two B21 cross beams 141 and two B22 cross beams 143, the length direction of the B21 cross beam 141 is consistent with that of the A cross beam 217, and the B22 cross beam 143 and the B21 cross beam 141 are vertically arranged; the clamping unit is provided with two corresponding to the two A assembly units, the clamping unit comprises an A movable beam 124, the length direction of the A movable beam 124 is consistent with the length direction of a B21 cross beam 141, two ends of the A movable beam 124 are respectively arranged on two B22 cross beams 143 in a sliding mode through B22 sliding sleeves 144, two A1 clamping rods 120 are respectively arranged on the lower sides of two ends of the A movable beam 124, the upper ends of the two A1 clamping rods 120 are respectively and fixedly arranged on two A1 follow-up adjusting blocks 122, the two A1 follow-up adjusting blocks 122 are respectively and slidably arranged on two A1 moving pieces 123 in the vertical direction, the A1 moving piece 123 is L-shaped, the A1 moving piece 123 is slidably arranged on the A movable beam 124 in the length direction of the A movable beam 124, the A2 clamping sleeve 131 is fixedly arranged in the middle of the A movable beam 124 in a hanging mode, an A nut adjusting motor 125 is arranged in the middle of the A movable beam 124, and an output shaft of the A nut adjusting motor 125 is connected with an A lifting adjusting rod 126, the lower end of the A lifting adjusting rod 126 is provided with an A3 transition gear 127 which is meshed with the A3 driving gear 136, the A lifting adjusting rod 126 is provided with a threaded rod body section, the threaded rod body section is provided with an A lifting transition nut, the A lifting transition nut is installed in the middle of the A lifting transition connecting rod 128 which is horizontally arranged, and two ends of the A lifting transition connecting rod 128 are respectively assembled with the A1 follow-up adjusting block 122 in a sliding mode along the length direction of the B21 cross beam 141; the A movable beams 124 on the two clamping units are connected through a B21 spacing adjusting piece 129, two A1 movable pieces 123 which are oppositely arranged on the two clamping units along the length direction of a B22 cross beam 143 are respectively assembled with the same A movable cross bar 145 in a sliding mode along the length direction of the B22 cross beam 143, two A movable cross bars 145 are arranged, two ends of each A movable cross bar 145 are respectively assembled with two B21 cross beams 141 in a sliding mode through B21 sliding sleeves 142, the length direction of each A movable cross bar 145 is consistent with the length direction of the B22 cross beam 143, and the two A movable cross bars 145 are connected through a B22 spacing adjusting piece 146; specifically, the B21 and B22 distance adjusting members 146 may be formed of adjusting cylinders or electric cylinders.

As shown in fig. 18, 19, and 20, the a-clip cover bracket 112 includes a-shaped square conduit arranged vertically, the a1 is slidably assembled in the a-shaped square conduit by abutting against the adjusting member 115, the a-shaped square conduit includes two a pipe walls arranged corresponding to the length direction of the cover 210 and two B pipe walls arranged corresponding to the width direction of the cover 210, the two a plate bodies are respectively installed outside the two a pipe walls in a floating manner by an a compression spring, the two a-clip cover adjusting blocks 116 are respectively installed on the two B pipe walls in a floating manner by springs along the length direction of the cover 210, a1 is provided with a1 abutting grooves on the outer surface of the adjusting member 115 arranged corresponding to the B pipe walls, a1 is arranged vertically by abutting against grooves, a1 abutting grooves sequentially include a1 groove segments and A3 groove segments from top to bottom, a2 groove segments are provided between the a1 groove segments and the A3 groove segments, the groove depth of the A3 groove segment is greater than that of the a1 groove segment, the groove bottom of the a2 groove segment is arranged obliquely, and the groove depth of the two ends of the a1 is respectively equal to that of the a1, The groove depth of the groove section A3 is kept consistent, the groove bottom surface of the A1 leaning against the groove is matched with the A clamping cover adjusting block 116 in a sliding leaning against mode, the two A clamping cover adjusting blocks 116 are connected with the two A plate bodies through the A connecting rope 117, the A1 leaning against the adjusting piece 115 is leaning against the A clamping cover adjusting block 116 to move towards the outer side of the square pipe body A, and the A plate body moves towards one side close to the square pipe body A;

as shown in fig. 21 and 22, the upper end of the a-clip cover bracket 112 is fixedly assembled on the a-turn plate 113, the a-turn plate 113 is rotatably installed on the B1 lifting bracket 118, and the a-turn plate 113 is provided with an a1 abutting lifting adjusting piece (which may be an air cylinder or an electric cylinder) for adjusting the a1 abutting the adjusting piece 115 to lift; when the A clamp cover adjusting block 116 is arranged corresponding to the A3 groove section, the A clamp cover hole and the A assembling shaft 213 are in a separated state; during descending of the A1 abutting adjusting piece 115 relative to the A clip cover adjusting block 116, when the A clip cover adjusting block 116 rotates from the A2 groove section to the A1 groove section, the A clip cover hole and the A assembling shaft 213 are assembled, and the A1 abutting adjusting piece 115 is in contact abutting contact with the upper surface of the first plate body. The a2 rotation adjusting part 119 may be a rotation adjusting electric cylinder, a turntable connecting rod is provided on the a turntable 113, and the turntable connecting rod and the rotation adjusting electric cylinder constitute a crank adjusting mechanism for adjusting the a turntable 113 to rotate.

The B1 lifting bracket 118 is located inside the B2 lifting bracket, the B2 lifting guide rod 151 is located outside the B1 lifting guide rod 153, the upper surface of the lifting platform 150 is provided with a B2 bracket lifting adjusting component 152, and the lower surface is provided with a B1 bracket lifting adjusting component 154, as shown in fig. 11 and 12. The assembly lift adjustment mechanism 155 forms a large adjustment assembly for the lift and is used in a corresponding existing manner as the case may be.

By adopting the assembly equipment, when the flax fiber material is added into the cooking ball 200, the ball cover assembly device 100 is in the state shown in fig. 25, the material port 201 is in the upward arrangement state, and the whole ball cover assembly device 100 is adjusted to be in a high position by the assembly lifting adjusting mechanism 155, so that the material is avoided from entering the cooking ball 200. After the cooking ball 200 is filled with the material, the assembly lifting adjusting mechanism 155 adjusts the whole ball cover assembly device 100 to descend, so that the cover 210 completely enters the cooking ball 200 through the material opening 201. Then, the adjustment lid body 210 is rotated about the a-fitting shaft 213, so that the lid body 210 on the a21 side is turned downward to a horizontally arranged state, that is, a state shown in fig. 24, and then the adjustment lid body 210 is rotated about its vertical center line by 90 °, to be adjusted to a state shown in fig. 23. And then, the ball cover is lifted, so that the ball cover blocks the material port 201, after the ball cover is clamped with the material port 201, the two A movable beams 124 are adjusted to be close to each other, the A connecting block 211 at the lower end of the A threaded rod 215 is assembled with the A1 connecting groove 216, after the assembly of the A connecting block 211 and the A1 connecting groove 216 is completed, the A nut adjusting motor 125 is started, the A movable nut 214 is adjusted to be screwed down and rotated, so that the A1 clamping grooves 219 at the two ends of the A cross rod 217 are clamped with the A clamping part, and the ball cover is fixed on the cooking ball 200 at the material port 201 by the A assembling component. Then the two A1 clamping rods 120 are adjusted to be away from each other, so that the A1 clamping block 121 is separated from the A2 connecting groove 218, then the two A movable beams 124 are adjusted to be away from each other, so that the A connecting block 211 is separated from the A1 connecting groove 216, the two A clamping cover pieces 111 are adjusted to be away from each other and completely separated from the A assembling shaft 213, then the whole ball cover assembling device 100 is adjusted to be lifted and separated from the ball cover, and the rotary cooking of the cooking ball 200 is avoided.

Before the cooking ball 200 is unloaded, the adjusting material port 201 is in an upward arrangement state, the adjusting ball cover assembling device 100 descends to be arranged corresponding to the ball cover, and the two A movable beams 124 are adjusted to be close to each other, so that the A connecting block 211 enters the A1 connecting groove 216 for assembling. Then, the two a1 clamping rods 120 are adjusted to approach each other, so that the a1 clamping block 121 is assembled with the a2 connecting groove 218, and the two a clamping cover pieces 111 are adjusted to approach each other and assembled with the a assembling shaft 213. Then, the a nut adjusting motor 125 is started, the a movable nut 214 is adjusted to perform loosening rotation, so that the a cross bar 217 is lifted, after the a movable nut 214 is loosened to the position, the two a movable beams 124 are adjusted to be away from each other, so that the a connecting block 211 is separated from the a1 connecting groove 216, and then the cover body 210 is adjusted to descend in the cooking ball 200, so that the cover body 210 and the ball cover assembling device 100 are in the state shown in fig. 23. The adjustment cap is then rotated 90 in the opposite direction about its vertical centerline and adjusted to the condition shown in figure 24. Then, the regulating cover 210 is rotated about the a-fitting shaft 213, so that the cover 210 on the a21 side is flipped up to the state of being obliquely arranged, that is, the state shown in fig. 25. The lid is then lifted so that the lid is completely removed from the cooking ball 200 and the rotary discharge and loading of the cooking ball 200 is avoided. The cooking ball 200 is then rotated for discharge. After the unloading is finished, the loading operation steps are required to be carried out and repeated again, and the operation is repeated.

According to the technical scheme provided by the invention, the automatic assembly of the cover body 210 can be effectively realized, the production efficiency is improved, and the labor intensity and the production cost are reduced.

The process for producing the flax pulp/flax pulp paperboard by adopting the system comprises the following operation steps:

The length of the short flax fibers after cutting treatment is 4.5-5.5 mm, and the length of the flax fibers in the feed liquid after fine sizing treatment is 1.5-2.1 mm. By adopting the control of the length of the fiber material, the requirement of the final beating degree of the flax paper board can be met, and the fiber yield can be ensured.

The cooking agent is prepared from alkali liquor and H2O2, 2 tons of short flax fibers are added into a screw extrusion pre-soaking machine 010, 10 tons of alkali liquor (NaOH) and 800 kilograms of H2O2 are added for mixed cooking, the concentration of the alkali liquor is 30g/L, pre-soaking treatment is carried out, and the materials after pre-soaking treatment are sent to a cooking ball for cooking treatment.

the fiber is steamed and cooked under the conditions, so that the developing effect of the finished flax paper can be effectively improved.

The bleaching treatment operation is as follows: pouring the cooked feed liquid into a spherical tank 021, adding water to dilute until a propeller in the spherical tank 021 can push the feed liquid, adjusting the temperature of the feed liquid to 38-42 ℃, adding 100 kg of sodium hypochlorite, pushing the propeller for 15min, then performing solid-liquid separation, cleaning the solid-liquid separation by using clear water for three times, adding water after cleaning, pushing the liquid uniformly by using the propeller, then adding 150 kg of sodium hypochlorite, pushing the propeller for 20min, adding 15 kg of chlorine dioxide and 1.5 kg of activating agent, wherein the activating agent is magnesium stearate, or replacing the magnesium stearate by other agents with the same function, pushing the propeller for 20min, finally adding 75 kg of hydrogen peroxide, and continuing to push for 20min to complete the bleaching operation.

Before pulping, the concentration of the feed liquid is diluted to 3%, and the length of the flax fiber in the feed liquid after pulping is 2.8-3.0 mm. And carrying out deslagging treatment on the feed liquid after the fine sizing treatment by adopting a two-stage four-section process. Before deslagging treatment, feed liquid is diluted to make the concentration in the feed liquid be less than or equal to 0.5%.

Sending the flax pulp after deslagging into a cylinder thickener for concentration, sending the flax pulp after concentration into a pulp-making conveyer belt for pulp-making treatment, controlling the conveying speed of the pulp-making conveyer belt to be 30m/min and the extrusion force of a water pressing roller to be 0.35KPa, adopting two extrusion dehydration subunits for extrusion dehydration, controlling the two-stage extrusion forces to be 0.2 KPa and 0.4 KPa respectively, and then drying and dehydrating the flax pulp by a drying dehydration subunit, thereby realizing reliable separation of water, removing impurities such as black spots on a paper tape before splitting treatment, and preparing a flax paper board product after splitting treatment.

The linerboards prepared in the above way are detected and analyzed, and the detection and analysis results are specifically shown in table 1.

Table 1 linerboard test results

The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.

Claims

1. The production process of the flax pulp is characterized by comprising the following operation steps:

2. The production process of the flax pulp as claimed in claim 1, wherein the length of the cut flax fiber is 4.5-5.5 mm, and the length of the flax fiber in the feed liquid after the refined pulp treatment is 1.5-2.1 mm.

3. The process for producing linseed pulp according to claim 1, wherein the cooking agent is composed of lye and H₂O₂Is prepared by adding 10 tons of alkali liquor and 800 kilograms of H into each 2 tons of short flax fibers during the steaming treatment₂O₂Mixing and cooking are carried out, and the concentration of the alkali liquor is 30 g/L.

4. The production process of linseed pulp according to claim 1 or 3, characterized in that the temperature is raised in the cooking treatment according to the following conditions:

。

5. the process for producing flax pulp according to claim 5 wherein the bleaching operation is: pouring the feed liquid after cooking into a ball discharging pool, adding water to dilute the feed liquid until a propeller in the ball discharging pool can push the feed liquid, adjusting the temperature of the feed liquid to 38-42 ℃, adding 100 kg of sodium hypochlorite, pushing the propeller for 15min, then performing solid-liquid separation, cleaning the solid-liquid separation with clear water for three times, adding water after cleaning, pushing the clean water uniformly by the propeller, then adding 150 kg of sodium hypochlorite, pushing the propeller for 20min, adding 15 kg of chlorine dioxide and 1.5 kg of activating agent, pushing the propeller for 20min, finally adding 75 kg of hydrogen peroxide, and continuing to push for 20min to complete the bleaching operation.

6. The process for producing flax pulp according to claim 5 wherein the bleached pulp is beaten in a Holland beater for 80min, the first 30min of the beating process having a 130A current and the last 50min having: 150A.

7. The production process of the flax pulp as claimed in claim 5, wherein a high-taper D800 refiner is adopted to carry out refining treatment on the pulped feed liquid, the refining treatment time is 90min, and the working current is 320-330A.

8. The production process of the flax pulp as claimed in claim 5, wherein the concentration of the feed liquid is diluted to 3% before the pulping treatment, and the length of the flax fiber in the feed liquid after the pulping treatment is 2.8-3.0 mm.

9. The production process of flax pulp as claimed in claim 5, wherein the material liquid after fine pulp treatment is subjected to deslagging by a two-stage four-stage process.

10. The production process of flax pulp as claimed in claim 5, wherein the feed liquid is diluted before the deslagging treatment to make the concentration in the feed liquid less than or equal to 0.5%.