JP5646151B2 - Pulp manufacturing method and pulp manufacturing system apparatus using non-wood as raw material - Google Patents

Description

  The present invention is based on non-wood that can significantly reduce the amount of water and chemicals used continuously, in a shorter time, at a lower cost by adding pretreatment in pulp production using non-wood as a raw material. The present invention relates to a pulp manufacturing method and a pulp manufacturing system apparatus.

  As a conventional technology, in order to remove impurities other than fibers and make pulp, a raw material containing impurities is put into a huge steam pot called a batch type, and processing such as boiling for a long time with a large amount of chemicals is performed to remove impurities. In a method of removing pulp and a pre-processing device of a pulp production system device using non-wood as a raw material, the non-wood as a raw material flows through the cylinder, and a rotating shaft that penetrates the cylinder is provided. The rotating shaft has an independent driving device, and a spiral swirl blade group is attached to the half of the rotating shaft in the axial direction, and a crushing blade is provided in a crossing manner in the remaining portion of the rotating shaft in the axial direction. A kneading blade is inserted into each block and is exchangeable, and it is an agitation, washing, compression, dehydration, heat generation, and crushing device that uses the rotation of swirl blades and steam to assist crushing. Also The heat is generated by the action, and the non-wood is washed with a pre-treatment device that removes impurities other than fibers more efficiently with a small amount of chemicals, and then pulped, and then the pre-treated non-wood is placed between multiple cylinders. Each rotating shaft is provided to flow through and flow through each of the plurality of cylinders, and each rotating shaft has an independent driving device and is attached with a spiral swirl blade group, and further intersects with the remaining portion. A kneading blade with a crushing blade fitted into each block is inserted into each block and exchangeably attached, and then passed through a multistage pulp manufacturing machine that performs stirring, washing, compression, dehydration, heat generation, crushing, and bleaching is performed by introducing bleach There is a non-wood pulp manufacturing system apparatus (for example, see Patent Document 1) that can continuously and inexpensively pulp non-wood by performing it.

JP 2003-64587 A (refer to the claims section, detailed description section, and FIGS. 1 to 4)

However, in the above prior art, there is a time loss of boiling in a huge steam kettle for a long time, a problem such as a place where a large amount of processing cannot be performed without using a huge steam kettle, and a long time with a large amount of chemicals. There was a problem of treatment of the waste liquid generated by boiling.
In addition, if the raw material is non-wood such as rice, wheat, barley, rye, etc., reeds, bagasse, bamboo, hemp, kenaf, weeds that inhabit roads, leaves, garbage, sand, silica, etc. Since impurities other than fibers are present along with the soiling, it is necessary to remove the soiling of non-wood as a raw material without using chemicals while adding moisture. A non-wood as a raw material flows in the cylinder, and a rotating shaft that penetrates the cylinder is provided. The rotating shaft has an independent driving device and spirally rotates in half of the axial direction of the rotating shaft. Agitating, washing, compressing, dehydrating, exothermic, and crushing with a blade group attached and a kneading blade with a crushing blade crossed at the remaining part of the axis of rotation of the rotary shaft, fitted into each block and attached interchangeably This is a device that performs the process with a coarse pretreatment device that generates high heat by forcibly crushing with the rotation of the swirl blade group and steam, and removing only moisture and dirt. It turned out that pulp was made by adding non-wood raw materials and caustic soda that were soiled to a multi-stage pulp making machine, but when water was added, it could not be pulped.
Regarding the feed of raw materials in the apparatus, the communicating cylinder that connects the uppermost cylinder to the middle cylinder, and further the middle cylinder to the lowermost cylinder of the multistage pulp making machine is simply vertical or inclined, There is no mechanism for sending. As a result, it was found that the raw materials were actually jammed and could not be sent.
In view of such circumstances, the present invention attaches a spiral swirl blade group as a means for pulping non-wood raw materials over about half of the axial direction of the rotating shaft passing through the cylinder, and the remaining second half portion. Insert a kneading blade with a crushing blade that is tilted at an appropriate angle with respect to the circumferential direction of the rotating shaft and reversely turned one by one so as to be orthogonal to the rotating shaft for each block. Multi-stage pulp manufacturing with a plurality of similar cylinders and a coarse pre-treatment device that stirs, cleans, compresses, dehydrates, generates heat, and crushes so that raw materials flow in cylinders that are interchangeably installed It is an object of the present invention to provide a non-wood pulp manufacturing method and a pulp manufacturing system apparatus capable of adding a small amount of caustic soda to a machine and performing non-wood pulping at low cost in a short time.

The first aspect of the present invention capable of achieving the above object is a pulp system apparatus using non-wood as a raw material as described in claim 1, and is as follows.
Non-wood and water as raw materials are put into a cylinder so that the raw material flows in the cylinder, and the non-wood as raw material is stirred together with water, washed, compressed, dehydrated, heated, and crushed , the non-wood raw materials are pretreated with the pretreatment device a pulping system device for manufacturing the pulp through multistage pulper, pretreatment apparatus provided a rotating shaft extending through the tubular body, the said rotary shaft Is provided with a driving device, and a spiral swirl blade group is provided in the half of the axial direction of the rotary shaft, and the other half of the axial direction of the rotary shaft is inclined at an appropriate angle with respect to the circumferential direction of the rotary shaft. The kneading blades that are installed in a cross shape by alternately reversing the direction of each crushing blade so as to be orthogonal to the axial direction of the rotating shaft are fitted into each block in a replaceable manner, and are exchangeable. Rotating spiral swirl group The non-wood raw materials are loading blade rotates, stirred with water, washed, compression, dehydration, fever, while crushing Aragonashi, the Aragonashi, non timber, the pretreatment apparatus having the same shape cylindrical body of the drive unit, the rotation shaft, through the helical swirler group, stage over that having a kneading blade, middle, from the top of the cylindrical body of the lower and three provided a multi-stage pulping machine, pre-processing unit The raw non-wood material pretreated and roughened in step 1 is added without supplying water, and a small amount of caustic soda is added to the multistage pulp making machine, and the right row is passed between the three upper, middle and lower cylinders. The first communication cylinder and the second communication cylinder have a first communication cylinder and a second communication cylinder that sequentially flow in a left row, a right row, and a zigzag, and connect the upper, middle, and lower cylinders. A polymer plate excluding vinyl resin and carbon-containing resin is installed to cover the entire body. , The polymer plate provided to extend the upper, middle, helical swirler groups lower the tubular body, and to the site avoiding the end of the kneading blades, and treated with a multi-stage pulping machine, this process In this configuration, a bleaching agent is added to the raw material after being processed, and non-wood can be pulped continuously.

The second aspect of the present invention capable of achieving the above object is a method for producing a pulp using non-wood as a raw material as described in claim 2, and is as follows.
In a pulp manufacturing method using non-wood as a raw material, a non-wood as a raw material is introduced and flowed into a cylinder together with water, and a pretreatment device for pre-processing non-wood is provided with a rotating shaft that penetrates the cylinder. The rotary shaft is provided with a driving device, and a spiral swirl blade group is provided in half of the axial direction of the rotary shaft, and the other half of the axial direction of the rotary shaft is in the circumferential direction of the rotary shaft, The kneading blade, which is tilted at an appropriate angle and mounted in a cross shape by alternately reversing the direction of each crushing blade so as to be orthogonal to the axial direction of the rotating shaft, can be exchanged by fitting into each block. A spiral swirl blade group and kneading blade rotate by mounting and rotation of the rotating shaft, and the non-wood raw materials are stirred, washed, compressed, dehydrated, exothermic, and crushed pretreatment is performed. The pre-treatment of the treated non-wood without water supply A small amount of sodium hydroxide was added to the multi-stage pulping machine to perform the same processing, the upper cylinder of the multi-stage pulper, middle cylinder, rightward between plurality of the cylindrical body of the lower cylinder, left row, rightward And a polymer plate excluding a resin containing a vinyl-based resin and carbon so as to cover the entire inside of the communicating cylinder, so that the upper, middle, and lower cylinders are connected so as to flow in a zigzag manner. The polymer plate is provided by extending to the spiral swirl blade group of each of the upper, middle and lower cylinders, or the portion avoiding the end of the kneading blade, so that the non-wood raw material can be connected to each communicating cylinder. to prevent the clogging entangled in the body stirred at this multistage pulper, compression, dehydration, fever, have rows crushed, and further put bleach raw materials after being processed by the multi-stage pulper In a configuration that can perform pulping of non-wood That.

Since the raw material which concerns on this invention has the structure as the said description, the pulp manufacturing method and pulp manufacturing system apparatus by a non-wood have the effect described below.
(1) A spiral swirling blade group and a crushing blade were provided while adding water to remove various impurities such as leaves, dust, sand and silica contained in non-wood raw materials and impurities other than fibers. The non-wood raw material removed by the coarse pretreatment device consisting of a kneading blade was found to be unable to be pulped while supplying water. The pulping is performed by the kneading blade provided with the spiral swirl blade group and the crushing blade without supplying water, but the problem is that the raw material becomes tangled and transported by the communicating cylinder that connects the cylinders of each stage Can be continuously pulped.
(2) By using the present pulp manufacturing system apparatus including the pretreatment apparatus, it is possible to manufacture non-wood pulp having a higher quality than conventional non-wood pulp.
(3) The use of chemicals can be minimized, and accordingly, problems such as drainage treatment can be solved.
(4) It leads to downsizing of the pulp production system device and reduction of running cost.

It is a front view which shows the pre-processing apparatus for removing impurities other than a fiber from the non-wood which is a raw material of this invention. It is a front view which shows the structure of the rotating shaft which is the principal part of each step cylinder of the coarse pretreatment apparatus in FIG. 1 of this invention and the multistage pulp manufacturing machine in FIG. It is a side view which shows the structure which attached to the rotating shaft the kneading blade for every block incorporated in the rough pre-treatment apparatus and multistage pulp manufacturing machine of this invention. It is explanatory drawing of the pulp manufacturing system by the non-wood which is a raw material of this invention. It is an expanded sectional view which shows the state which covered the inner wall of the communicating cylinder which connects the raw material of each stage cylinder of the multistage pulp manufacturing machine of this invention with the polymer plate. It is a front view which shows one Example of the multistage pulp manufacturing machine of this invention. It is a side view of the multistage pulp manufacturing machine shown in FIG.

  Use non-wood such as rice, wheat, barley, rye, etc., collected directly from the production area, non-wood such as reeds, bagasse, bamboo, hemp, kenaf and weeds that live along the road. It needs to be removed. In the present invention, in order to remove impurities other than fibers together with dirt, a kneading blade provided with a crushing blade in a cross shape with a spiral swirl blade group while adding water is fitted into each block so as to be interchangeably attached to each block. It has a coarse pretreatment device that adds non-wood raw materials and stirs, cleans, compresses, dehydrates, generates heat, and crushes them in a fluidized manner, and removes impurities from this pretreatment device in multiple stages. It is thrown into the pulp making machine. This multi-stage pulp making machine is divided into multi-stage types in order to consider compactness, and the non-wood put from the right side of the uppermost cylinder is fed to the left side while being processed, transferred to the intermediate cylinder, Move from the left to the right, and also move from the right to the left of the lowermost cylinder, and repeat the inversion to perform processing.From the uppermost cylinder to the middle cylinder, and further from the middle cylinder to the lowermost cylinder A communicating cylinder for transferring the raw material is provided. In order to avoid the kneading blade provided with the spiral swirl blade group and crushing blade of each step cylinder in this communication cylinder, a vinyl resin is continuously formed from each step cylinder to the communication cylinder. Multi-stage pulp manufacturing that can prevent entanglement and clogging of raw materials by covering with a polymer plate excluding resin containing carbon and carbon, and can shorten the conventional pulp manufacturing process that requires a long distance After being sent to the machine and processed there, a chemical such as caustic soda is added for bleaching to obtain a production method and a pulp production system device for producing pulp made of non-wood.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
First, a rough pretreatment apparatus for removing various impurities such as leaves, dust, sand, silica, and impurities other than fibers from non-wood, which is a raw material of the present invention, will be described in detail.
As a conventional method, a steam pot called a batch method is used, and a method of boiling non-wood with a large amount of chemicals in a kettle for a long time is employed.
However, since this method simmers in a kettle for a long time with a large amount of chemicals, a very concentrated drainage is produced during the treatment.

  Therefore, in the rough pretreatment apparatus 4 of the present invention, the spiral swirl blade group 1 is attached over approximately half of the axial direction of the rotary shaft passing through the cylinder while supplying water, and the axial direction of the rotary shaft is The crushing blade 2 attached in a cross shape by inclining at an appropriate angle with respect to the circumferential direction of the rotating shaft and reversing the direction alternately one by one so as to be orthogonal to the axial direction of the rotating shaft in the remaining second half portion. The raw material is made to flow in a cylinder body that is fitted and replaceably fitted with a kneading blade 3 provided for each block, and the supplied non-wood is used to perform stirring, washing, compression, dehydration, heat generation, and crushing. While being washed inside, it is forcibly stirred, washed, compressed, dehydrated, exothermic and crushed by the spiral swirl blade group 1 and the kneading blade 3. At this time, since non-wood generates heat due to friction, it does not require steaming steam for pulping that is used in the conventional batch method, and the chemicals such as alkali agents used at that time are one-fifteenth to fifteenth conventional. A small amount of chemicals removes dirt and impurities in a short time.

Next, the non-wood pulp manufacturing system apparatus to which the coarse pretreatment apparatus 4 is added will be described in detail.
In conventional pulp production such as non-wood, it is necessary to remove impurities other than fiber by boiling in a batch method for a long time, and to perform many processes necessary for pulp production using a huge system device, In order to manufacture pulp such as non-wood, a huge site and a large amount of running costs were required.
In addition, when pulping non-wood raw material pretreated by the coarse pretreatment apparatus with a multi-stage pulp manufacturing machine, which is the next step, it turns out that it cannot be pulped if water is supplied. did.

The reason is that the cylinders at each stage of the multistage pulp making machine are stirred in the cylinders by the kneading blade 3 provided with the spiral swirl blade group 1 and the crushing blade 2 in the same manner as the coarse pretreatment apparatus. , Compression, heat generation, crushing and transporting, but communicating cylinders that transport and communicate raw materials from the uppermost cylinder of each stage to the middle cylinder, and from the middle cylinder to the lowermost cylinder Is simply connected by a cylinder, and this cylinder is formed of a stainless steel cylinder, but it is not feeding water, so it clogs as if the raw material of non-wood is caught, and the next cylinder A phenomenon that is not transferred occurs.
For this reason, when various solutions were tried, it was found that, for example, vinyl-based resins and carbon-containing resins were all clogged with raw materials.
And in this invention, it succeeded in eliminating clogging by covering with the polymer board 16 except the resin which contains the vinyl resin of the thickness which is easy to stick and it is easy to form, and carbon.
The affixing of the polymer plate 16 also does not interfere with the rotation of the blade from the vicinity of the blade cut 17 which is the end of the kneading blade 3 having the cylindrical spiral swirl blade group 1 and the crushing blade 2 at each stage. The clogging can be eliminated by being folded and covered on the entire communication cylinders 9 and 11 and the cylinders 8, 10, and 13 at each stage so as not to form a recess as much as possible.
By adopting such a configuration, the pulp production system apparatus of the present invention removes dirt other than non-wood and impurities other than fibers by the coarse pretreatment apparatus 4 of the present invention, and has a multi-stage cylinder. Multi-stage pulp that stirs, compresses, dehydrates, generates heat, and crushes with repeated inversions, such as pumping the left side while processing non-wood put in from the right side and pumping the discharged material from left to right By using the manufacturing machine 5, non-wood pulp with higher quality than conventional non-wood pulp can be produced, and the use of chemicals can be minimized. This solves the problem of downsizing the pulp manufacturing system and reducing running costs.

  The pulp manufacturing system apparatus according to an embodiment of the present invention will be described in detail. The pulp manufacturing system apparatus is composed of three cylinders arranged so as to have a substantially triangular shape when viewed from the side, and is sent by a coarse pretreatment apparatus. The wood raw material is fed from the raw material inlet 7 of the uppermost cylinder 8. The three cylinders include a first communicating cylinder 9 that communicates with the uppermost cylinder 8 on the opposite side of the raw material inlet 7 of the uppermost cylinder 8 provided with a raw material inlet 7 at one end, The first communicating cylinder 9 is connected to one end of the middle cylinder 10 and further communicated with the lowermost cylinder 13 on the side opposite to the first communicating cylinder 9 communicating with the middle cylinder 10. The second communicating cylinder 11 is provided, the second communicating cylinder 11 is connected to one end of the lowermost cylinder 13, and the product discharge port 12 is the second communicating cylinder 11 of the lowermost cylinder 13. It is provided on the opposite side. When the communicating cylinders 9 and 11 of the cylinders 8, 10 and 13 flow from the uppermost cylinder 8 to the middle cylinder 10 and from the middle cylinder 10 to the lowermost cylinder 13, the flow direction is reversed each time. Will do. Rotating shafts 14 penetrating through the cylinders 8, 10 and 13 are provided so as to be rotationally driven by independent driving devices 5 (for example, a geared motor or the like). In addition, the arrangement of the cylinders 8, 10, 13 is not limited to that shown in the figure when viewed from the side, but it may be vertically arranged, equilateral triangles, horizontally arranged horizontally, It goes without saying that various design changes can be made due to the arrangement of the building and related equipment. Furthermore, it goes without saying that the raw material inlet 1, the communicating cylinders 9 and 11, and the product outlet 12 can be appropriately arranged in consideration of efficiency. A plurality of cylinders can be selected as appropriate, and by using the multistage pulp making machine 5, raw materials such as non-wood generate heat due to friction, so that steaming for pulping is not necessary, and it is cheaper. Pulp can be produced.

  Finally, the pulp contains a substance such as an adhesive that connects the fibers with fibers such as lignin. This lignin will eventually color the pulp, stiffen the fibers and lose hydration. Therefore, in order to remove it, it is a pulp production system apparatus in which the pulp is completed by stirring with a spiral swirl blade group and further bleaching white by adding ozone and caustic soda when passing through the bleaching cylinder 6.

  Pulp can be produced using not only non-wood raw materials but also ordinary papermaking materials.

DESCRIPTION OF SYMBOLS 1 .... Spiral swirl blade group 2 .... Crushing blade 3 .... Kneading blade 4 .... Coarse-free pretreatment device 5 .... Multi-stage pulp making machine 6 ...・ Stirring and bleaching cylinder 7... Raw material inlet 8... Uppermost cylinder 9... First communication cylinder 10. 12... Product discharge port 13... Bottom cylinder 14... Rotating shaft 15... Drive device 16.

Claims (2)

Non-wood and water as raw materials are put into a cylinder so that the raw material flows in the cylinder, and the non-wood as raw material is stirred together with water, washed, compressed, dehydrated, heated, and crushed , the non-wood raw materials are pretreated with the pretreatment device a pulping system apparatus for manufacturing the pulp through multistage pulper, pretreatment apparatus provided a rotating shaft extending through the tubular body, the said rotary shaft Is provided with a driving device, and a spiral swirl blade group is provided in the half of the axial direction of the rotary shaft, and the other half of the axial direction of the rotary shaft is inclined at an appropriate angle with respect to the circumferential direction of the rotary shaft. The kneading blades that are installed in a cross shape by alternately reversing the direction of each crushing blade so as to be orthogonal to the axial direction of the rotating shaft are fitted into each block in a replaceable manner, and are exchangeable. Rotating spiral swirl group The non-wood raw materials are loading blade rotates, stirred with water, washed, compression, dehydration, fever, while crushing Aragonashi, the Aragonashi, non timber, the pretreatment apparatus having the same shape cylindrical body of the drive unit, the rotation shaft, through the helical swirler group, stage over that having a kneading blade, middle, from the top of the cylindrical body of the lower and three provided a multi-stage pulping machine, pre-processing unit The raw non-wood material pretreated and roughened in step 1 is added without supplying water, and a small amount of caustic soda is added to the multistage pulp making machine, and the right row is passed between the three upper, middle and lower cylinders. The first communication cylinder and the second communication cylinder have a first communication cylinder and a second communication cylinder that sequentially flow in a left row, a right row, and a zigzag, and connect the upper, middle, and lower cylinders. A polymer plate excluding vinyl resin and carbon-containing resin is installed to cover the entire body. , The polymer plate provided to extend the upper, middle, helical swirler groups lower the tubular body, and to the site avoiding the end of the kneading blades, and treated with a multi-stage pulping machine, this process A non-wood pulp manufacturing system apparatus , wherein a bleaching agent is added to the raw material after being processed to pulp non-wood continuously. In a pulp manufacturing method using non-wood as a raw material, a non-wood as a raw material is introduced and flowed into a cylinder together with water, and a pretreatment device for pre-processing non-wood is provided with a rotating shaft that penetrates the cylinder. The rotary shaft is provided with a driving device, and a spiral swirl blade group is provided in half of the axial direction of the rotary shaft, and the other half of the axial direction of the rotary shaft is in the circumferential direction of the rotary shaft, The kneading blade, which is tilted at an appropriate angle and mounted in a cross shape by alternately reversing the direction of each crushing blade so as to be orthogonal to the axial direction of the rotating shaft, can be exchanged by fitting into each block. A spiral swirl blade group and kneading blade rotate by mounting and rotation of the rotating shaft, and the non-wood raw materials are stirred, washed, compressed, dehydrated, exothermic, and crushed pretreatment is performed. The pre-treatment of the treated non-wood without water supply Small amounts of sodium hydroxide was added to the multi-stage pulping machine to perform the same processing, the upper cylinder of the multi-stage pulper, middle cylinder, rightward between plurality of the cylindrical body of the lower cylinder, left row, rightward And a polymer plate excluding a resin containing a vinyl-based resin and carbon so as to cover the entire inside of the communicating cylinder, so that the upper, middle, and lower cylinders are connected so as to flow in a zigzag manner. The polymer plate is provided by extending to the spiral swirl blade group of each of the upper, middle and lower cylinders, or the portion avoiding the end of the kneading blade, so that the non-wood raw material can be connected to each communicating cylinder. prevents clogging entangled in the body, stirring at this multistage pulper, compression, dehydration, fever, have rows crushed, and further charged bleach raw materials after being processed by the multi-stage pulper That non-wood pulping can be done METHOD pulping by raw materials non-wood to symptoms.

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