CN104404827A - Cellulose pulp pretreatment equipment - Google Patents
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- CN104404827A CN104404827A CN201410578436.9A CN201410578436A CN104404827A CN 104404827 A CN104404827 A CN 104404827A CN 201410578436 A CN201410578436 A CN 201410578436A CN 104404827 A CN104404827 A CN 104404827A
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- 229920002678 cellulose Polymers 0.000 title claims abstract description 35
- 239000001913 cellulose Substances 0.000 title claims abstract description 35
- 238000003756 stirring Methods 0.000 claims abstract description 113
- 238000003825 pressing Methods 0.000 claims abstract description 35
- 239000002904 solvent Substances 0.000 abstract description 40
- 238000002156 mixing Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 8
- 230000008961 swelling Effects 0.000 abstract description 7
- 238000004537 pulping Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 25
- 239000010410 layer Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 239000000835 fiber Substances 0.000 description 4
- 238000005470 impregnation Methods 0.000 description 4
- 229920000297 Rayon Polymers 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- 235000021395 porridge Nutrition 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229920003043 Cellulose fiber Polymers 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 239000011345 viscous material Substances 0.000 description 2
- -1 CS 2 Substances 0.000 description 1
- 229920000433 Lyocell Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 231100000481 chemical toxicant Toxicity 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000001784 detoxification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
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- Mixers Of The Rotary Stirring Type (AREA)
- Paper (AREA)
Abstract
本发明提供纤维素浆粕预处理设备，包括立式搅拌釜，釜体上方设有一釜盖，釜盖上设有电机，搅拌轴与电机连接，搅拌轴伸入釜体内，搅拌轴上设有搅拌桨，所述釜体内搅拌桨上方设有一多孔压板，多孔压板设有一中心通孔，搅拌轴穿过中心通孔设置，所述多孔压板与釜体截面相配合设置，所述多孔压板上设有多个孔，所述多孔压板可在釜体内上下移动。本发明的有益效果是多孔压板能完成把浆粕压到溶剂里的工艺要求，浆粕浸渍溶剂溶胀、混合和碎浆、在一个釜内完成，节约设备投资和节约工程投入，节约制造、能耗及管理费用，缩短了纤维素浆粕预处理工艺流程。
The invention provides cellulose pulp pretreatment equipment, including a vertical stirring kettle, a kettle cover is arranged on the top of the kettle body, a motor is arranged on the kettle cover, the stirring shaft is connected with the motor, the stirring shaft extends into the kettle body, and the stirring shaft is provided with Stirring paddle, a porous pressing plate is provided above the stirring paddle in the kettle body, the porous pressing plate is provided with a central through hole, the stirring shaft is set through the central through hole, the porous pressing plate is set in cooperation with the section of the kettle body, and the porous pressing plate is provided with There are many holes, and the porous pressing plate can move up and down in the still body. The beneficial effect of the present invention is that the porous press plate can complete the technical requirements of pressing the pulp into the solvent, and the swelling, mixing and pulping of the pulp soaked in the solvent are completed in one kettle, which saves equipment investment and engineering investment, and saves manufacturing and energy. Consumption and management costs are reduced, and the cellulose pulp pretreatment process is shortened.
Description
技术领域technical field
本发明属于物料混合设备，尤其是涉及一种纤维素浆粕预处理设备，用于纤维素浆粕浸渍溶剂、溶胀、碎浆和混合,特别适于但不仅限于新溶剂法纤维素纤维(Lyocell)中的纤维素浆粕的预处理。The invention belongs to material mixing equipment, especially relates to a cellulose pulp pretreatment equipment, which is used for impregnating solvent, swelling, pulping and mixing of cellulose pulp, especially suitable for but not limited to the new solvent method cellulose fiber (Lyocell ) Pretreatment of cellulose pulp.
背景技术Background technique
粘胶纤维的生产已经走过了一百多年的历史，它的存在一定程度上满足了人类社会发展差别化纤维的需求，但由于其生产工艺中需使用大量对环境有害的化学品(如CS2，NaOH，ZnSO4，H2SO4等)，生产过程中排放的污水废物中也含有大量的有毒化学物质(如H2S，CS2等)，会对环境造成巨大的污染，这些对环境有害的化学物质的无害化处理的代价很高，而且成效有限。与粘胶纤维相比，新溶剂法纤维素纤维的生产完全符合环保要求。纤维素浆粕的溶解以及纺丝、丝条凝固浴析出溶剂等都是物理过程，整个流程中涉及的物质主要就是纤维素浆粕与溶剂，另外有非常少量的稳定剂等。The production of viscose fiber has gone through a history of more than one hundred years, and its existence has met the needs of human society to develop differentiated fibers to a certain extent. However, due to the use of a large number of environmentally harmful chemicals (such as CS 2 , NaOH, ZnSO 4 , H 2 SO 4 , etc.), the sewage and waste discharged during the production process also contains a large amount of toxic chemicals (such as H 2 S, CS 2 , etc.), which will cause huge pollution to the environment. The detoxification of environmentally harmful chemicals is costly and has limited success. Compared with viscose fiber, the production of new solvent-based cellulose fiber fully complies with environmental protection requirements. The dissolution of cellulose pulp, spinning, and solvent precipitation in the filament coagulation bath are all physical processes. The substances involved in the whole process are mainly cellulose pulp and solvent, and there is also a very small amount of stabilizer.
纤维素的浆粕预处理的过程，一种同粘胶纤维的浆粕预处理过程，将浆粕喂入浸渍桶的同时，浸渍碱液连续定量由碱液泵经碱液计量桶送入浸渍桶内，在浸渍桶内，浆粕被浆翼撕碎并与碱充分混合，再经过压榨机、粉碎机、老成鼓、黄化机等等设备形成浆粥，该处理过程工艺流程长，投入成本大，能耗大；另一种为定量计量浆粕和溶剂，然后直接形成浆粥，这种处理过程能耗低，设备占地面积小，但对浆粕预处理设备要求高，要做到每一片浆粕吸收到足够的溶剂，混合后浆粥均匀一致，采用现有的搅拌釜达不到纤维素的浆粕预处理要求。The pulp pretreatment process of cellulose is the same as the pulp pretreatment process of viscose fiber. At the same time, the pulp is fed into the impregnation tank, and the impregnation lye is continuously quantitatively sent into the impregnation by the lye pump through the lye metering tank. In the barrel, in the soaking barrel, the pulp is shredded by the paddle wings and fully mixed with the alkali, and then it is formed into a pulp porridge through a press, a pulverizer, an aging drum, a yellowing machine, etc. The cost is high and the energy consumption is high; the other is to quantitatively measure pulp and solvent, and then directly form pulp porridge. Until each piece of pulp absorbs enough solvent, the pulp porridge after mixing is uniform, and the existing stirring tank cannot meet the pulp pretreatment requirements of cellulose.
CN202962468U公开了一种搅拌釜，包括釜体，在釜体外设有一变频电机，一搅拌轴由变频电机驱动，且所述搅拌轴伸入塔体内，所述搅拌轴上设有多层桨叶，桨叶根部与搅拌轴连接，所述多层桨叶在搅拌轴上呈等间距分布；桨叶自根部向端部倾斜一定角度，所述同一层的搅拌桨叶倾斜角度和方向一致；所述相邻两层搅拌桨叶的倾斜角度大小相等，倾斜方向相反。采用该搅拌釜进行纤维素浆粕预处理时，由于浆粕漂浮在溶剂上层，溶剂不能够将浆粕完全浸渍、溶胀，所以混合效果差。CN202962468U discloses a stirring kettle, comprising a kettle body, a frequency conversion motor is arranged outside the kettle body, a stirring shaft is driven by the frequency conversion motor, and the stirring shaft extends into the tower body, and the stirring shaft is provided with multi-layer paddles, The root of the paddle is connected to the stirring shaft, and the multi-layer paddles are distributed at equal intervals on the stirring shaft; the paddles are inclined at a certain angle from the root to the end, and the stirring blades of the same layer have the same inclination angle and direction; The inclination angles of two adjacent layers of stirring blades are equal in magnitude and opposite in inclination directions. When the stirring tank is used for pretreatment of cellulose pulp, since the pulp floats on the upper layer of the solvent, the solvent cannot completely impregnate and swell the pulp, so the mixing effect is poor.
国内目前纤维素机械制造技术领域刚刚起步，纤维素浆粕预处理设备机械制造领域还处于空白阶段。国外这方面已经研究多年，有成熟的技术，国外对国内的技术封锁，使我们只有通过试验在研究纤维素的生产方法。At present, the field of cellulose machinery manufacturing technology in China has just started, and the field of cellulose pulp pretreatment equipment machinery manufacturing is still in a blank stage. Foreign countries have been studying this aspect for many years and have mature technologies. Foreign countries have blocked domestic technology, so we can only study the production method of cellulose through experiments.
发明内容Contents of the invention
本发明的目的是提供一种结构简单、操作简单、生产效率高的纤维素浆粕预处理设备，适合应用于纤维素浆粕与溶剂的浸渍、溶胀、混合多项处理过程。The purpose of the present invention is to provide a cellulose pulp pretreatment equipment with simple structure, simple operation and high production efficiency, which is suitable for multiple processes of immersion, swelling and mixing of cellulose pulp and solvent.
本发明的技术方案是：纤维素浆粕预处理设备，包括立式搅拌釜，釜体上方设有一釜盖，釜盖上设有电机，搅拌轴与电机连接，搅拌轴伸入釜体内，搅拌轴上设有搅拌桨，其中，所述釜体内搅拌桨上方设有一可在釜体内上下移动的多孔压板，多孔压板设有一中心通孔，搅拌轴穿过中心通孔设置，所述多孔压板与釜体截面相配合设置，所述多孔压板上设有多个孔。The technical solution of the present invention is: the cellulose pulp pretreatment equipment includes a vertical stirring tank, a kettle cover is arranged above the kettle body, a motor is arranged on the kettle cover, the stirring shaft is connected with the motor, the stirring shaft extends into the kettle body, and the stirring A stirring paddle is arranged on the shaft, wherein a porous pressing plate that can move up and down in the kettle body is provided above the stirring paddle in the kettle body, the porous pressing plate is provided with a central through hole, and the stirring shaft is set through the central through hole, and the porous pressing plate and the The cross section of the kettle body is matched with each other, and the porous pressing plate is provided with a plurality of holes.
为了实现纤维素浆粕预处理的工艺要求，本发明在搅拌釜内设有可升降的多孔压板，多孔压板将漂浮在溶剂中的浆粕压入溶剂中。通过多孔压板在搅拌釜内上下移动，以保证将浆粕完全压入溶剂中，以使浆粕能够在溶剂中得到完全溶胀，提高搅拌釜中溶剂和浆粕的浸渍溶胀效果。In order to realize the technical requirement of cellulose pulp pretreatment, the present invention is equipped with a movable porous pressing plate in the stirred tank, and the porous pressing plate presses the pulp floating in the solvent into the solvent. The porous pressing plate moves up and down in the stirring tank to ensure that the pulp is completely pressed into the solvent, so that the pulp can be completely swollen in the solvent, and the effect of dipping and swelling of the solvent and pulp in the stirring tank is improved.
多孔压板上侧设有用于带动多孔压板上下移动的定位装置，所述定位装置下端与多孔压板上侧相连接，定位装置上端与釜盖或釜体上端可活动连接；The upper side of the porous press plate is provided with a positioning device for driving the porous press plate to move up and down, the lower end of the positioning device is connected with the upper side of the porous press plate, and the upper end of the positioning device is movably connected with the lid or the upper end of the kettle body;
优选的，所述定位装置为拉杆，搅拌釜的釜盖上设有拉杆孔，拉杆穿过拉杆孔并与釜盖可活动连接；Preferably, the positioning device is a pull rod, and a pull rod hole is provided on the lid of the stirred tank, and the pull rod passes through the pull rod hole and is movably connected with the kettle lid;
更优选的，多孔压板上侧设有多个与搅拌轴平行的拉杆，拉杆围绕搅拌轴均布设置。More preferably, a plurality of tie rods parallel to the stirring shaft are arranged on the upper side of the porous platen, and the tie rods are evenly distributed around the stirring shaft.
通过拉杆与釜盖之间的可活动连接，可实现多孔压板在搅拌釜内的上下移动，调节多孔压板在搅拌釜内的位置。Through the flexible connection between the pull rod and the kettle cover, the porous pressing plate can move up and down in the stirred tank, and the position of the porous pressing plate in the stirred tank can be adjusted.
拉杆上设有多个垂直于拉杆的定位孔，拉杆通过穿过定位孔的销轴与釜盖连接，所述销轴的长度大于拉杆孔的直径。The pull rod is provided with a plurality of positioning holes perpendicular to the pull rod, and the pull rod is connected with the kettle cover through a pin shaft passing through the positioning holes, and the length of the pin shaft is greater than the diameter of the pull rod hole.
在拉杆上设有多个定位孔，将拉杆上提或下移使拉杆孔正好位于釜盖的上方，将销轴穿过拉杆孔，就能够将销轴卡住，防止拉杆由于重力作用向釜体下部滑动，拉杆与釜盖之间的相对位置固定，从而固定多孔压板在搅拌釜内的位置。There are multiple positioning holes on the pull rod, lift the pull rod up or down so that the pull rod hole is just above the lid of the kettle, pass the pin through the pull rod hole, and the pin shaft can be blocked to prevent the pull rod from moving toward the kettle due to gravity. The lower part of the body slides, and the relative position between the pull rod and the kettle cover is fixed, thereby fixing the position of the porous pressure plate in the stirred tank.
釜体侧壁设有进料管，进料管的一端与釜体侧壁的进料口相连接，进料管的另一端斜向上延伸，进料口设置在搅拌桨叶与釜盖之间的釜体侧壁上，进料口上端与釜盖之间设有容纳多孔压板的间距。There is a feeding pipe on the side wall of the kettle body, one end of the feeding pipe is connected to the feeding port on the side wall of the kettle body, and the other end of the feeding pipe extends obliquely upwards, and the feeding port is set between the stirring paddle and the kettle cover On the side wall of the kettle body, there is a space between the upper end of the feed inlet and the lid of the kettle to accommodate the porous platen.
将进料管设置在釜体侧壁上，将多孔压板向上移动至进料口上方，多孔压板就能够不妨碍向搅拌釜内加入物料。The feeding pipe is arranged on the side wall of the kettle body, and the porous pressing plate is moved upward to the top of the feeding port, so that the porous pressing plate can not hinder the feeding of materials into the stirring kettle.
所述多孔压板停留固定在第一位置或第二位置，所述第一位置位于进料口上端与釜盖之间，所述第二位置位于进料口下端与搅拌桨叶上方之间；The porous platen stays fixed at the first position or the second position, the first position is located between the upper end of the feed inlet and the lid of the kettle, and the second position is located between the lower end of the feed inlet and the top of the stirring blade;
优选的，多孔压板分别通过拉杆上的第一定位孔或第二定位孔停留固定在第一位置或第二位置，第一定位孔与多孔压板间的距离小于等于进料口上端与釜盖之间的距离，第二定位孔与多孔压板间的距离大于等于进料口下端与釜盖间的距离。Preferably, the porous pressing plate stays fixed at the first position or the second position through the first positioning hole or the second positioning hole on the pull rod respectively, and the distance between the first positioning hole and the porous pressing plate is less than or equal to the distance between the upper end of the feed inlet and the kettle cover. The distance between the second positioning hole and the porous platen is greater than or equal to the distance between the lower end of the feed inlet and the kettle cover.
所述多孔压板停留固定在第一位置、第二位置或第三位置，所述第一位置位于进料口上端与釜盖之间，所述第二位置位于进料口下端与搅拌桨叶上方之间，所述第三位置位于第二位置下方与搅拌桨叶上方之间；The porous platen stays fixed at the first position, the second position or the third position, the first position is located between the upper end of the feed inlet and the lid of the kettle, and the second position is located above the lower end of the feed inlet and the stirring blade Between, the third position is located between the bottom of the second position and the top of the stirring blade;
优选的，多孔压板分别通过拉杆上的第一定位孔、第二定位孔或定位凸台停留固定在第一位置、第二位置或第三位置，第一定位孔与多孔压板间的距离小于等于进料口上端与釜盖之间的距离，第二定位孔与多孔压板间的距离大于等于进料口下端与釜盖间的距离，拉杆上端还设有定位凸台，定位凸台为宽度大于拉杆孔的直径的凸起，定位凸台位于第二定位孔上方，所述定位凸台与多孔压板间的距离小于等于搅拌桨叶最上端与釜盖间的距离。Preferably, the porous pressing plate stays fixed at the first position, the second position or the third position through the first positioning hole, the second positioning hole or the positioning boss on the pull rod respectively, and the distance between the first positioning hole and the porous pressing plate is less than or equal to The distance between the upper end of the feed inlet and the kettle cover, the distance between the second positioning hole and the porous platen is greater than or equal to the distance between the lower end of the feed inlet and the kettle cover, and the upper end of the pull rod is also provided with a positioning boss, and the positioning boss is wider than The diameter of the pull rod hole protrudes, and the positioning boss is located above the second positioning hole, and the distance between the positioning boss and the porous platen is less than or equal to the distance between the uppermost end of the stirring blade and the kettle cover.
在釜体的侧壁上可以设有一个进料口，浆粕和溶剂都通过该进料口加入到搅拌釜中。釜体的侧壁上也可以设有两个进料口，两个进料口上分别设有溶剂进料管和浆粕进料管。溶剂和浆粕分别从不同的进料管加入到搅拌釜中。在加料时，首先将销轴设置在第一定位孔的位置，多孔压板位于进料口上方，浆粕从釜体侧壁上的进料口加入到釜体中；然后将多孔压板向下移动，将销轴固定在第二定位孔上，多孔压板位于进料口下方，加入溶剂后将多孔压板继续下移，通过定位凸台将多孔压板的位置固定在搅拌桨上方与进料口下方之间的位置，多孔压板把漂浮在溶剂上方的浆粕全部压入溶剂中，多孔压板把浆粕压实，这时多孔压板上有溶剂。将浆粕压入溶剂浸渍一定时间，待多孔压板上溶剂消失，全部被浆粕吸收，浸渍溶胀结束。浸渍溶胀完成后，把多孔压板提起，销轴固定在第一定位孔位置，打开搅拌电机，开始搅拌混合。A feed port may be provided on the side wall of the tank body, through which pulp and solvent are fed into the stirred tank. The side wall of the still body may also be provided with two feed ports, and the two feed ports are respectively provided with a solvent feed pipe and a pulp feed pipe. Solvent and pulp are fed into the stirred tank from different feeding pipes respectively. When feeding, first set the pin shaft at the position of the first positioning hole, the porous pressing plate is located above the feed inlet, and the pulp is fed into the kettle body from the feeding inlet on the side wall of the kettle body; then move the porous pressing plate downward , fix the pin shaft on the second positioning hole, the porous press plate is located below the feed inlet, after adding the solvent, move the porous press plate down, and fix the position of the porous press plate between the top of the stirring paddle and the bottom of the feed inlet through the positioning boss The porous press plate presses all the pulp floating above the solvent into the solvent, and the porous press plate compacts the pulp. At this time, there is solvent on the porous press plate. The pulp is pressed into the solvent and soaked for a certain period of time. After the solvent disappears on the porous press plate, it is completely absorbed by the pulp, and the soaking and swelling are completed. After the impregnation and swelling are completed, lift the porous platen, fix the pin shaft at the position of the first positioning hole, turn on the stirring motor, and start stirring and mixing.
所述搅拌桨设有桨叶，桨叶近轴端与搅拌轴连接，桨叶的远轴端设有片状动刀，动刀的一个侧边靠近釜体侧壁且与釜体侧壁不接触；The stirring paddle is provided with a paddle, the proximal end of the paddle is connected to the stirring shaft, and the far-axis end of the paddle is provided with a sheet-shaped movable knife, and one side of the movable knife is close to the side wall of the kettle body and is not separated from the side wall of the kettle body. touch;
优选的，所述动刀的一个侧边与釜体侧壁之间等间距设置；Preferably, one side of the movable knife is equidistant from the side wall of the kettle body;
更优选的，所述动刀为长条形片状，动刀平行于搅拌轴设置。More preferably, the moving knife is in the shape of a strip, and the moving knife is arranged parallel to the stirring shaft.
由于纤维素浆料粘稠，桨叶外层的物料不易搅拌起来，釜内易出现搅拌死区,釜内壁也易挂料。在桨叶的远轴端设置有动刀，动刀刀刃能够将釜内壁的物料刮下来，提高搅拌效果。桨叶的远轴端设置有动刀以后，搅拌釜的电机功率负荷较普通搅拌釜增加了2-3倍。Due to the viscous cellulose slurry, the material in the outer layer of the paddle is not easy to stir, and the stirring dead zone is easy to appear in the kettle, and the inner wall of the kettle is also easy to hang. A moving knife is arranged at the far-axis end of the paddle, and the blade of the moving knife can scrape off the material on the inner wall of the kettle to improve the stirring effect. After the far-axis end of the paddle is equipped with a moving knife, the motor power load of the stirring tank is increased by 2-3 times compared with the ordinary stirring tank.
所述搅拌桨设有多层桨叶，多层桨叶层与层之间相互交错设置。The stirring paddle is provided with multi-layer blades, and the layers of the multi-layer blades are interlaced with each other.
所述搅拌釜底部设有倒锥形釜底，锥顶设有出料口，最下层桨叶上端位于釜体内部设有动刀，最下层桨叶下端位于釜底内部设有第一侧边，第一侧边上端与动刀下端相连接，第一侧边靠近釜底壁且与釜底壁不接触；The bottom of the stirred tank is provided with an inverted conical tank bottom, the top of the cone is provided with a discharge port, the upper end of the bottom paddle is located inside the tank body and a movable knife is provided, and the lower end of the bottom paddle is located inside the tank bottom with a first side , the upper end of the first side is connected to the lower end of the movable knife, and the first side is close to the bottom wall of the kettle and does not touch the bottom wall of the kettle;
优选的，所述最下层桨叶还设有第二侧边，第二侧边一端与旋转轴连接，第二侧边另一端与第一侧边下端相连接，所述第二侧边下方安装有立刀，所述立刀的上端与第二侧边连接，立刀的下端朝向搅拌轴倾斜。Preferably, the bottommost paddle is also provided with a second side, one end of the second side is connected to the rotating shaft, the other end of the second side is connected to the lower end of the first side, and the bottom of the second side is installed There is a vertical knife, the upper end of the vertical knife is connected to the second side, and the lower end of the vertical knife is inclined towards the stirring shaft.
采用倒锥形釜底方便搅拌釜内物料的排出，同时也提高了搅拌釜的搅拌效果。第一侧边与釜底壁相配合设置同样也能够防止物料在锥形釜底壁上挂料。立刀能够将釜底的物料向出料口方向推出，方便物料的排出。The inverted cone bottom is used to facilitate the discharge of materials in the stirred tank, and also improves the stirring effect of the stirred tank. The cooperating arrangement of the first side and the bottom wall of the kettle can also prevent materials from hanging on the bottom wall of the conical kettle. The vertical knife can push the material at the bottom of the kettle to the direction of the discharge port to facilitate the discharge of the material.
所述搅拌釜釜体内侧壁上设有至少一个挡条，所述挡条平行于搅拌轴设置，挡条的上端与最上层桨叶的动刀上端齐平，挡条的下端与最下层桨叶的动刀下端齐平，挡条与动刀刀刃之间相互靠近且不接触。The inside wall of the stirred tank body is provided with at least one retaining bar, the retaining bar is arranged parallel to the stirring shaft, the upper end of the retaining bar is flush with the upper end of the moving knife of the uppermost paddle, and the lower end of the retaining bar is flush with the lowermost paddle. The lower end of the moving knife of the leaf is flush, and the retaining bar and the moving knife edge are close to and do not touch each other.
挡条能够把粘稠的物料阻挡一下，防止物料与搅拌桨整体一起转动。挡条的设置使动刀与挡条之间产生一个剪切作用，对物料起到了混合的效果。The blocking bar can block the viscous material and prevent the material from rotating together with the stirring paddle. The setting of the retaining bar makes a shearing effect between the moving knife and the retaining bar, which has a mixing effect on the materials.
本发明具有的优点和积极效果是：由于采用上述技术方案，纤维素浆粕的预处理的物料更加均匀；浆粕浸渍溶剂溶胀、混合和碎浆在一个釜内完成，节约设备投资和节约工程投入，节约制造、能耗及管理费用，缩短了纤维素浆粕预处理工艺流程。The advantages and positive effects of the present invention are: due to the adoption of the above technical scheme, the pretreated material of cellulose pulp is more uniform; the swelling, mixing and pulping of pulp impregnated with solvent are completed in one kettle, which saves equipment investment and engineering investment, saving manufacturing, energy consumption and management costs, and shortening the cellulose pulp pretreatment process.
附图说明Description of drawings
图1是本发明的纤维素浆粕预处理设备结构示意图Fig. 1 is the structural representation of the cellulose pulp pretreatment equipment of the present invention
图2是多孔压板结构示意图Figure 2 is a schematic diagram of the porous platen structure
图中：In the picture:
1、电机 2、釜盖 3、搅拌轴 4、釜体1. Motor 2. Kettle cover 3. Stirring shaft 4. Kettle body
5、釜底 6、多孔压板 7、拉杆 8、浆粕进料管5. Kettle bottom 6. Porous platen 7. Tie rod 8. Pulp feed pipe
9、溶剂进料管 10、出料口 11、第一层桨叶 12、最下层桨叶9. Solvent feed pipe 10. Outlet 11. The first paddle 12. The bottom paddle
13、动刀 14、第一侧边 15、立刀 16、挡条13. Moving knife 14. First side 15. Standing knife 16. Barrier
17、出料螺旋轴 18、第二侧边 61、中心通孔 71、第一定位孔17. Discharge screw shaft 18. Second side 61. Central through hole 71. First positioning hole
72、第二定位孔 73、定位凸台72. Second positioning hole 73. Positioning boss
具体实施方式Detailed ways
如图1所示，本发明纤维素浆粕预处理设备包括一立式搅拌釜，釜体4上方设有一釜盖2，釜盖2上设有电机1，搅拌轴3与电机1连接，搅拌轴3伸入釜体4内，搅拌轴3上设有搅拌桨，釜体4内搅拌桨上方设有一多孔压板6，多孔压板6上设有很多用于使溶剂通过的孔洞，多孔压板6与釜体4截面相配合设置，多孔压板6上设有一个中心通孔61，搅拌轴3穿过中心通孔61设置，多孔压板6可在釜体4内上下移动。As shown in Figure 1, the cellulose pulp pretreatment equipment of the present invention comprises a vertical stirring tank, a kettle cover 2 is arranged above the kettle body 4, a motor 1 is arranged on the kettle cover 2, and the stirring shaft 3 is connected with the motor 1, and the stirring The shaft 3 extends into the kettle body 4, and the stirring shaft 3 is provided with a stirring paddle. A porous pressing plate 6 is arranged above the stirring paddle in the kettle body 4. The porous pressing plate 6 is provided with many holes for allowing the solvent to pass through. The porous pressing plate 6 and the The cross-section of the kettle body 4 is matched with each other, the porous platen 6 is provided with a central through hole 61, and the stirring shaft 3 is set through the central through hole 61, and the porous platen 6 can move up and down in the kettle body 4.
多孔压板6上侧设有与搅拌轴3平行的拉杆7，搅拌釜的釜盖2上设有拉杆孔，拉杆7穿过拉杆孔并与釜盖2可活动连接。进一步的，多孔压板上侧可垂直设有多个拉杆7，拉杆7围绕搅拌轴3均布设置。在拉杆7上可设有多个垂直于拉杆7的定位孔，定位孔里可拆卸的装有销轴，销轴的长度大于拉杆孔的直径，当定位孔里安装有销轴时，销轴能够防止拉杆7由于重力作用下落，销轴将拉杆7与釜盖2之间的位置相对固定。通过将销轴安装在不同的定位孔中，可以调节拉杆7与釜盖2之间的位置关系，从而调节多孔压板6在釜体4内部的位置。The upper side of the porous platen 6 is provided with a pull rod 7 parallel to the stirring shaft 3 , and the lid 2 of the stirred kettle is provided with a pull rod hole through which the pull rod 7 passes and is movably connected with the kettle lid 2 . Further, a plurality of tie rods 7 may be arranged vertically on the upper side of the porous platen, and the tie rods 7 are evenly distributed around the stirring shaft 3 . The pull rod 7 can be provided with a plurality of positioning holes perpendicular to the pull rod 7. The pin shaft is detachably housed in the positioning hole. The length of the pin shaft is greater than the diameter of the pull rod hole. When the pin shaft is installed in the positioning hole, the pin shaft It can prevent the pull rod 7 from falling due to gravity, and the pin shaft relatively fixes the position between the pull rod 7 and the kettle cover 2 . By installing the pin shafts in different positioning holes, the positional relationship between the pull rod 7 and the kettle cover 2 can be adjusted, thereby adjusting the position of the porous pressing plate 6 inside the kettle body 4 .
进一步的，在釜体4的侧壁设有进料管，进料管与釜体4相连通，进料管的一端与釜体4侧壁的进料口相连接，进料管的另一端斜向上延伸，进料管的另一端的高度高于进料口上端，搅拌桨叶位于进料口下方。在釜体4的侧壁上可以设有一个进料管，也可以设有两个或两个以上的进料管。一般设有溶剂进料管9和浆粕进料管8两个不同的进料管。溶剂通过溶剂进料管9加入到釜体4内部，较大块的浆粕通过直径较大的浆粕进料管8加入到釜体4内部。进料管设置在釜体4的侧壁上方便多孔压板6的使用。拉杆7上设有第一定位孔71和第二定位孔72，第一定位孔71与多孔压板6间的距离小于等于进料口上端与釜盖2之间的距离，第二定位孔72与多孔压板6间的距离大于等于进料口下端与釜盖2间的距离。在浆粕加料之前，将拉杆7向上拉动，使第一定位孔71位于釜盖2的上方，将销轴安装到第一定位孔71中。这样就能使多孔压板6位于进料口上方与釜盖2之间的位置。加料之后，将拉杆7向下移动，使第二定位孔72正好位于釜盖2的上方，将销轴安装在第二定位孔72中。多孔压板6向下移动位于进料口的下方，加入溶剂。拉杆7上第二定位孔72的上方设有定位凸台73，定位凸台73的宽度大于拉杆孔的直径。与多孔压板6间的距离小于等于搅拌桨叶最上端与釜盖2间的距离。在定位凸台时，多孔压板6位于搅拌桨叶上方与进料口下端之间。此时多孔压板6完全浸没在溶剂中，相对应的，浆粕也完全被压入溶剂中。防止一小部分浆粕不能完全吸到溶剂，搅拌时多孔压板6向上移动，使第一定位孔71露出，用销轴固定，即多孔压板6提到进料口上。开始搅拌混合。Further, a feed pipe is provided on the side wall of the still body 4, and the feed pipe communicates with the still body 4, and one end of the feed pipe is connected with the feed port of the side wall of the still body 4, and the other end of the feed pipe is Extending obliquely upwards, the height of the other end of the feed pipe is higher than the upper end of the feed inlet, and the stirring blade is located below the feed inlet. One feeding pipe may be provided on the side wall of the kettle body 4, or two or more feeding pipes may be provided. Generally, there are two different feed pipes, the solvent feed pipe 9 and the pulp feed pipe 8 . The solvent is fed into the kettle body 4 through the solvent feeding pipe 9, and the larger pulp is fed into the kettle body 4 through the pulp feeding pipe 8 with a larger diameter. The feed pipe is arranged on the side wall of the still body 4 to facilitate the use of the porous platen 6 . The pull rod 7 is provided with a first positioning hole 71 and a second positioning hole 72, the distance between the first positioning hole 71 and the porous platen 6 is less than or equal to the distance between the upper end of the feed inlet and the kettle cover 2, the second positioning hole 72 and the The distance between the porous platens 6 is greater than or equal to the distance between the lower end of the feed inlet and the kettle cover 2 . Before the pulp is fed, the pull rod 7 is pulled upwards so that the first positioning hole 71 is located above the kettle cover 2 , and the pin shaft is installed in the first positioning hole 71 . In this way, the porous platen 6 can be positioned between the top of the feed inlet and the kettle cover 2 . After feeding, the pull rod 7 is moved downwards so that the second positioning hole 72 is just above the kettle cover 2, and the pin shaft is installed in the second positioning hole 72. The porous platen 6 moves downward and is located below the feeding port to add solvent. A positioning boss 73 is provided above the second positioning hole 72 on the pull rod 7, and the width of the positioning boss 73 is larger than the diameter of the pull rod hole. The distance between the porous platen 6 is less than or equal to the distance between the uppermost end of the stirring blade and the kettle cover 2 . When positioning the boss, the porous pressing plate 6 is located between the top of the stirring paddle and the lower end of the feed inlet. At this time, the porous pressing plate 6 is completely immersed in the solvent, and correspondingly, the pulp is also completely pressed into the solvent. To prevent a small part of the pulp from being able to absorb the solvent completely, the porous pressing plate 6 moves upwards during stirring, so that the first positioning hole 71 is exposed and fixed with a pin, that is, the porous pressing plate 6 is mentioned on the feed inlet. Start stirring to combine.
本发明纤维素浆粕预处理设备的釜体4可以为圆柱形，搅拌桨可设有单层桨叶，也可以设有多层桨叶。搅拌桨设有多层桨叶时，桨叶层与层之间相互交错设置，桨叶近轴端与搅拌轴3连接，桨叶的远轴端设有动刀13，动刀13平行于搅拌轴3设置，动刀13的一侧与桨叶连接，动刀13的另一侧设有与搅拌轴3平行的刀刃，刀刃靠近釜体4侧壁但与釜体4侧壁之间不接触。为了提高浆粕的粉碎和搅拌效果，搅拌桨的桨叶可以先45°斜伸到釜体4侧壁附近,再向搅拌轴3的旋转方向偏45°角。由于纤维素浆料粘稠，桨叶短外层的物料不易搅拌起来，釜体4内部易出现搅拌不到的死区，釜体4内侧壁也易挂料。在桨叶的远轴端设置有与搅拌轴3平行的动刀13，能够将釜体4内侧壁的物料刮下来，提高搅拌效果。The kettle body 4 of the cellulose pulp pretreatment equipment of the present invention may be cylindrical, and the stirring paddle may be provided with single-layer paddles or multi-layer paddles. When the stirring paddle is provided with multi-layer paddles, the paddle layers are interlaced with each other, the proximal end of the paddle is connected to the stirring shaft 3, and the distal end of the paddle is provided with a moving knife 13, which is parallel to the stirring shaft. The shaft 3 is set, one side of the moving knife 13 is connected to the paddle, and the other side of the moving knife 13 is provided with a blade parallel to the stirring shaft 3, the blade is close to the side wall of the kettle body 4 but does not touch the side wall of the kettle body 4 . In order to improve the pulverization and stirring effect of the pulp, the paddle of the stirring paddle can extend obliquely to the vicinity of the side wall of the kettle body 4 at 45° first, and then deviate to the rotation direction of the stirring shaft 3 at an angle of 45°. Because the cellulose slurry is viscous, the material in the short outer layer of the paddle blades is difficult to stir, and dead zones that cannot be stirred easily appear in the inside of the kettle body 4, and the inner wall of the kettle body 4 is also easy to hang material. A moving knife 13 parallel to the stirring shaft 3 is arranged at the distal end of the paddle, which can scrape off the material on the inner wall of the kettle body 4 and improve the stirring effect.
搅拌釜釜体4内侧壁上设有至少一个挡条16，挡条16平行于搅拌轴设置，挡条16的上端与最上层桨叶11的动刀13上端齐平，挡条16的下端与最下层桨叶12的动刀13下端齐平，挡条16与动刀13刀刃之间间隙设置。挡条15的设置使动刀13与挡条16之间产生一个剪切作用，能够把粘稠的物料阻挡一下，防止物料与搅拌桨整体一起转动，提高搅拌釜的混合效果At least one bar 16 is arranged on the inner wall of the tank body 4 of the stirred tank, and the bar 16 is arranged parallel to the stirring shaft. The lower end of the moving knife 13 of the lowermost paddle 12 is flush, and the gap between the retaining bar 16 and the moving knife 13 blades is set. The setting of the retaining bar 15 creates a shearing action between the movable knife 13 and the retaining bar 16, which can block the viscous material, prevent the material from rotating with the stirring paddle as a whole, and improve the mixing effect of the stirring tank
搅拌釜底部设有倒锥形釜底5，釜底5与釜体4相连通，釜底5的锥顶设有出料口10，最下层桨叶12上端位于釜体4内部设有动刀13，最下层桨叶13下端位于釜底5内部设有第一侧边14，第一侧边14上端与动刀13下端相连接，第一侧边14靠近釜底5壁且与釜底5壁之间不接触。第一侧壁14能够将挂在釜体5壁上的物料刮下来，与动刀13的作用相同。采用倒锥形釜底5方便搅拌釜内物料的排出，同时也提高了搅拌釜的搅拌效果。最下层桨叶12还可以进一步设有第二侧边18，第二侧边18一端与旋转轴3连接，第二侧边18另一端与第一侧边14下端相连接，第二侧边18下方安装有立刀15，立刀15的上端与第二侧边18连接，立刀15的下端朝向搅拌轴3倾斜。立刀15能够将釜底5的物料向出料口10方向推出，方便物料的排出。The bottom of the stirred tank is provided with an inverted conical tank bottom 5, which is connected with the tank body 4, and the cone top of the tank bottom 5 is provided with a discharge port 10, and the upper end of the bottom paddle 12 is located inside the tank body 4 with a movable knife 13. The lower end of the paddle 13 at the bottom is located inside the bottom 5, and a first side 14 is provided. The upper end of the first side 14 is connected to the lower end of the movable knife 13. The first side 14 is close to the wall of the bottom 5 and connected to the bottom 5. There is no contact between the walls. The first side wall 14 can scrape off the material hanging on the wall of the still body 5 , which is the same as the function of the movable knife 13 . The inverted conical bottom 5 is used to facilitate the discharge of materials in the stirred tank, and also improves the stirring effect of the stirred tank. The bottom blade 12 can further be provided with a second side 18, one end of the second side 18 is connected to the rotating shaft 3, the other end of the second side 18 is connected to the lower end of the first side 14, and the second side 18 A vertical knife 15 is installed below, the upper end of the vertical knife 15 is connected with the second side 18 , and the lower end of the vertical knife 15 is inclined towards the stirring shaft 3 . The vertical knife 15 can push out the material at the bottom of the kettle 5 towards the discharge port 10, so as to facilitate the discharge of the material.
为了进一步方便物料的排出，搅拌轴3下端可设有出料螺旋轴17，出料螺旋轴17上设有外螺纹，出料螺旋轴17位于釜底5内最下层桨叶12下方，出料螺旋轴17的外螺纹与出料口10之间配合设置。在搅拌釜搅拌工作的时候出料螺旋轴17随着搅拌轴3同向旋转，出料螺旋轴17上的螺纹带动物料向上运动，防止物料从出料口10排出。在搅拌釜搅拌工作完成后，搅拌轴3带动出料螺旋轴17向相反方向转动，出料螺旋轴17上的螺纹就带动物料向下运动，物料从出料口10排出。In order to further facilitate the discharge of materials, the lower end of the stirring shaft 3 can be provided with a discharge screw shaft 17, and the discharge screw shaft 17 is provided with external threads, and the discharge screw shaft 17 is located below the bottom paddle 12 in the bottom of the kettle 5. The external thread of the screw shaft 17 is set in cooperation with the discharge port 10 . When the stirring tank is stirring, the discharge screw shaft 17 rotates in the same direction with the stirring shaft 3, and the thread on the discharge screw shaft 17 drives the material to move upwards, preventing the material from being discharged from the discharge port 10. After the stirring work of the stirring tank is completed, the stirring shaft 3 drives the discharge screw shaft 17 to rotate in the opposite direction, and the thread on the discharge screw shaft 17 drives the material to move downward, and the material is discharged from the discharge port 10.
本实例的工作过程：拉动拉杆7使第一定位孔71位于釜盖2的上方，将销轴安装到第一定位孔71中，将多孔压板6的位置固定在进料口的上方。将浆粕从浆粕进料管8中加入到釜体4内部。将销轴从第一定位孔71中拆下，将拉杆7向下移动，将销轴安装在第二定位孔72，从溶剂进料管9中加入溶剂，溶剂穿过多孔压板6的孔向下流动。继续将拉杆7向下移动，使定位凸台73与釜盖2相接触，多孔压板6将漂浮在溶剂中的浆粕压紧。放置一定时间，把多孔压板6拉起，将销轴固定在第一定位孔71中。启动搅拌电机，完成高聚物浆粕预处理的搅拌混合步骤。电机1带动搅拌轴3上的搅拌桨叶转动，将浆粕碎浆、混合搅拌。浆粕预处理工作完成后，电机1带动搅拌轴3反向旋转，在立刀15和出料螺旋桨17的共同作用下，物料从出料口10中排出。The working process of this example: pull the pull rod 7 so that the first positioning hole 71 is located above the kettle cover 2, the pin shaft is installed in the first positioning hole 71, and the position of the porous pressing plate 6 is fixed above the feed port. Pulp is fed into the kettle body 4 from the pulp feed pipe 8 . The pin is removed from the first positioning hole 71, the pull rod 7 is moved downward, the pin is installed in the second positioning hole 72, and solvent is added from the solvent feed pipe 9, and the solvent passes through the hole of the porous platen 6 to flow down. Continue to move the pull rod 7 downwards so that the positioning boss 73 contacts the kettle cover 2, and the porous pressing plate 6 compresses the pulp floating in the solvent. After standing for a certain period of time, the porous pressing plate 6 is pulled up, and the pin is fixed in the first positioning hole 71 . Start the stirring motor to complete the stirring and mixing step of high polymer pulp pretreatment. The motor 1 drives the stirring paddles on the stirring shaft 3 to rotate, pulping and mixing the pulp. After the pulp pretreatment is completed, the motor 1 drives the stirring shaft 3 to rotate in reverse, and the material is discharged from the discharge port 10 under the joint action of the vertical knife 15 and the discharge propeller 17 .
以上对本发明的一个实施例进行了详细说明，但所述内容仅为本发明的较佳实施例，不能被认为用于限定本发明的实施范围。凡依本发明申请范围所作的均等变化与改进等，均应仍归属于本发明的专利涵盖范围之内。An embodiment of the present invention has been described in detail above, but the content described is only a preferred embodiment of the present invention, and cannot be considered as limiting the implementation scope of the present invention. All equivalent changes and improvements made according to the application scope of the present invention shall still belong to the scope covered by the patent of the present invention.
Claims (10)
Priority Applications (1)
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| CN107234699A (en) * | 2017-07-21 | 2017-10-10 | 无锡市湖昌机械制造有限公司 | Case is collected in wood chip compression |
| CN108033154A (en) * | 2017-12-07 | 2018-05-15 | 丁洪超 | A kind of material blockage-clearing device |
| CN110201758A (en) * | 2019-06-24 | 2019-09-06 | 河南科技学院 | A kind of special doctor's food production Highefficientpulverizer |
| CN112717797A (en) * | 2020-12-10 | 2021-04-30 | 江门市新会中新造纸网厂有限公司 | Whiteness regulator for paper pulp |
| CN114768592A (en) * | 2022-05-05 | 2022-07-22 | 江苏铁锚玻璃股份有限公司 | Glue mixing device and using method thereof |
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