CN101660283B - Wet materials preparing method of grass fiber raw materials, materials preparing equipment and roller type grass washing machine thereof - Google Patents
Wet materials preparing method of grass fiber raw materials, materials preparing equipment and roller type grass washing machine thereof Download PDFInfo
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- CN101660283B CN101660283B CN2009100913521A CN200910091352A CN101660283B CN 101660283 B CN101660283 B CN 101660283B CN 2009100913521 A CN2009100913521 A CN 2009100913521A CN 200910091352 A CN200910091352 A CN 200910091352A CN 101660283 B CN101660283 B CN 101660283B
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Abstract
The invention provides a wet material preparing method of grass fiber raw materials and equipment thereof. The equipment sequentially comprises a grass cutting machine, a roller type grass washing machine, a spiral grass extruding machine and an intermittent stewing device. The roller type grass washing machine comprises a water tank filling with water; the bottom part of the water tank is in the shape of a taper; the two ends of the water tank are respectively provided with a feed inlet and a discharge hole; the upper part of the water tank is sequentially provided with a plurality of cleat rollers in parallel and at intervals along the direction perpendicular to a connecting line of the feed inlet and the discharge hole; the cleat rollers are positioned in the same horizontal plane; and the bottom part of the water tank is provided with an automatic sewerage discharging system being capable of discharging impurity. The roller type grass washing machine washes out the dust on the surface of the grass and removes numerous dust, sands and heavy impurity in the grass, therefore, the method can effectively remove various impurities in the raw materials of the grass to keep higher raw materials cleaning degree, stabilizes and improves the quality of paper pulp, improves the operation environment of a factory, and protects the security of subsequent equipment; and the equipment has reasonable configuration, stable operation, good pulp forming quality and simple operation.
Description
Technical field
The invention relates to the method for getting the raw materials ready and the device thereof of raw material in a kind of paper technology, relate in particular to the wet feed preparation method of grass fiber raw material in the paper industry, get the raw materials ready equipment and roller type grass washing machine thereof.
Background technology
Grass as raw material slurrying is with a long history in China, and China also is the world today maximum country of grass fiber slurry output, and non-wood pulp still accounts for the overwhelming majority of the domestic primary slurry output of China so far, constitutes China's paper industry characteristic.The key problem that straw fiber raw material slurrying is polluted is that extraction rate of black liquor is low, black liquor character is unfavorable for that alkali reclaims, thereby causes pollution problems such as discharge of wastewater pollutional load height, difficulty of governance are big.Further, the reason that straw pulp black liquor extracts difficulty is that straw pulp slurry drainability is poor, and ash content in the black liquor (silicon) and sugar content height cause black liquor viscosity big, brings the difficulty of evaporation and burning.Therefore, strengthen to get the raw materials ready and remove that harmful substance is to produce the most important ring of straw pulp in the stalk.
Domestic batch cooking slurrying is still being used dry raw material preparation, and dry raw material preparation mainly is to remove heavy seeds by roll-type dust removal machine (or bipyramid dust removal machine), and isolates smalls dust etc. than light impurity, removes light impurity through expansion chamber, water dust scrubber again.In process of production, owing to management, maintenance reason, the negative pressure centrifugal blower that is used for dedusting seldom uses, cause blank workshop section to stir up a cloud of dust, its surrounding environment very severe, most of dust, impurity enter the batch cooking device, for black liquid extraction, evaporation bring difficulty; And the paper pulp color of making is dark, second-rate and black liquor silicon content height, therefore, has brought for the recovery of application, waste liquid of paper pulp and plant operations environment and seriously influences.
Thus, the inventor relies on relevant design and manufacturing experience for many years, proposes a kind of stable and wet feed preparation method of the grass fiber raw material that pulp quality is good, get the raw materials ready equipment and roller type grass washing machine thereof, to overcome the defective of existing structure.
Summary of the invention
The object of the present invention is to provide wet feed preparation method, the get the raw materials ready equipment and the roller type grass washing machine thereof of the grass fiber raw material that a kind of equipment configuration is reasonable, stable, pulp quality is good and simple to operate, to be used for that the grass fiber raw material is carried out batch cooking.
The object of the present invention is achieved like this, a kind of wet feed preparation method of grass fiber raw material, and this method may further comprise the steps:
(1) will send into chaffcutter from the dogstail raw material of charge make-up area;
(2) be admitted to a roller type grass washing machine through the blade after the chaffcutter cutting; Described roller type grass washing machine comprises that one is equipped with the tank of water, the tapered shape of bottom of gullet, the tank two ends are respectively equipped with charging aperture and discharging opening, tank top is along parallel successively with charging and discharging mouth line vertical direction and be interval with a plurality of goat's horn rollers, and these a plurality of goat's horn rollers are arranged in the same horizontal plane; Blade washs in water under the goat's horn roller strap that rotates is moving, and the impurity in the blade is deposited in the bottom of gullet of roller type grass washing machine and is discharged by an automatic blowdown system, and the blade after the cleaning is by the discharging opening output of roller type grass washing machine;
(3) blade after the cleaning is admitted to spiral and squeezes careless machine, squeezes careless machine by spiral the water in the blade is extruded, to improve the mass dryness fraction of blade;
(4) will squeeze the blade of exporting the careless machine from spiral and send into the batch cooking device with certain mass dryness fraction.
In a better embodiment of the present invention, the dogstail raw material of charge make-up area is to be transported to first belt conveyor by grass-carrying vehicle, by this first belt conveyor the dogstail raw material is sent in the chaffcutter again; Blade after the described cutting is sent into the charging aperture of roller type grass washing machine by second belt conveyor; Blade after the cleaning is sent into described spiral by a tilted-putted spiral dewater and is squeezed in the careless machine.
Purpose of the present invention also can realize like this, and a kind of wet feed preparation equipment of grass fiber raw material, this equipment of getting the raw materials ready are provided with chaffcutter, roller type grass washing machine, the crowded careless machine of spiral and batch cooking device in regular turn; Described roller type grass washing machine comprises that one is equipped with the tank of water, the tapered shape of bottom of gullet, the tank two ends are respectively equipped with charging aperture and discharging opening, tank top is along parallel successively with charging and discharging mouth line vertical direction and be interval with a plurality of goat's horn rollers, these a plurality of goat's horn rollers are arranged in the same horizontal plane, and the water level in the tank is higher than the axial line of goat's horn roller; Bottom of gullet is provided with the automatic blowdown system that can discharge impurity.
In a better embodiment of the present invention, the charging aperture of described roller type grass washing machine top is provided with a spray mouth of a river.
In a better embodiment of the present invention, be obliquely installed one between the discharging opening of described roller type grass washing machine below and the bottom of gullet and be convenient to the baffle plate that blade is exported.
In a better embodiment of the present invention, the described equipment of getting the raw materials ready also comprises the grass-carrying vehicle of the dogstail raw material being sent into first belt conveyor of chaffcutter and the dogstail raw material being delivered to first belt conveyor by the charge make-up area; Between described chaffcutter and roller type grass washing machine, also be provided with second belt conveyor; Between roller type grass washing machine and the crowded careless machine of spiral, be provided with a tilted-putted spiral dewater; Between crowded careless machine of spiral and batch cooking device, be provided with the 3rd belt conveyor.
In a better embodiment of the present invention, the belt of described second belt conveyor top is provided with magnet; Described spiral dewater upper front end and bottom are respectively equipped with charging aperture and water discharge outlet, and this bottom, spiral dewater rear end is provided with discharging opening.
A kind of roller type grass washing machine, described roller type grass washing machine comprises that one is equipped with the tank of water, the tapered shape of bottom of gullet, the tank two ends are respectively equipped with charging aperture and discharging opening, tank top is along parallel successively with charging and discharging mouth line vertical direction and be interval with a plurality of goat's horn rollers, and these a plurality of goat's horn rollers are arranged in the same horizontal plane; Bottom of gullet is provided with the automatic blowdown system that can discharge impurity.
In a better embodiment of the present invention, the charging aperture of described roller type grass washing machine top is provided with a spray mouth of a river.
In a better embodiment of the present invention, be obliquely installed one between the discharging opening of described roller type grass washing machine below and the bottom of gullet and be convenient to the baffle plate that blade is exported.
Because the present invention utilizes the dust on roller type grass washing machine flush away blade surface, remove a large amount of dust, sandstone and the heavy seeds that contain in the blade, therefore this method can effectively be removed various impurity in the dogstail raw material to keep higher raw material cleanliness factor, stablize and the raising pulp quality, improve factory's operating environment; And this equipment configuration is reasonable, stable, pulp quality is good and simple to operate.
Description of drawings
The following drawings only is intended to the present invention done and schematically illustrates and explain, not delimit the scope of the invention.Wherein,
Fig. 1: be the FB(flow block) of the wet feed preparation method of grass fiber raw material of the present invention.
Fig. 2: be the structural representation of the wet feed preparation equipment of grass fiber raw material of the present invention.
Fig. 3: be the structural representation of roller type grass washing machine among the present invention.
Fig. 4: be the schematic top plan view of Fig. 3.
Fig. 5: be the schematic side view of Fig. 3.
The specific embodiment
Understand for technical characterictic of the present invention, purpose and effect being had more clearly, now contrast description of drawings the specific embodiment of the present invention.
As shown in Figure 1, the invention provides a kind of wet feed preparation method of grass fiber raw material, be used for the grass fiber raw material is carried out batch cooking, this method may further comprise the steps:
(1) by dogstail feedstock delivery to the first belt conveyor of grass-carrying vehicle, by this first belt conveyor the dogstail raw material is sent into chaffcutter again with the charge make-up area;
(2) be admitted in the roller type grass washing machine by second belt conveyor through the blade after the chaffcutter cutting, blade washed, with the impurity in the blade of place to go; Blade after the cleaning is exported to by roller type grass washing machine and removes part moisture on the spiral dewater;
(3) blade after will being cleaned by described spiral dewater is sent into a spiral and is squeezed careless machine, and squeezes careless machine by spiral the water in the blade is extruded, to improve the mass dryness fraction of blade;
(4) will squeeze the blade of exporting the careless machine from spiral and send into the batch cooking device with certain mass dryness fraction.
From the above mentioned, in the wet feed preparation method of grass fiber raw material of the present invention, owing to utilize the dust on roller type grass washing machine flush away blade surface, and remove a large amount of dust, sandstone and the heavy seeds that contains in the blade, therefore, this method can effectively be removed various impurity in the dogstail raw material keeping higher raw material cleanliness factor, and is stable and improve pulp quality, improves factory's operating environment.And this equipment configuration is reasonable, stable, pulp quality is good and simple to operate.This method is specially adapted to that drainability is poor, material is soft and pile up grass fiber raw materials such as the little straw of unit weight, wheat straw, reed.
Further, as shown in Figure 2, the invention provides a kind of equipment of getting the raw materials ready of realizing the wet feed preparation method of above-mentioned grass fiber raw material, this equipment of getting the raw materials ready comprises that the grass-carrying vehicle 1, first belt conveyor 2, chaffcutter 3, second belt conveyor 4, roller type grass washing machine 5, spiral dewater 6, the spiral that set gradually squeeze careless machine 7, the 3rd belt conveyor 8 and batch cooking device 9.
In the present embodiment, the belt of described second belt conveyor 4 top is provided with the magnet (not shown), utilizes the iron class impurity in the described magnet removal blade, with the cleaning that prevents to damage roller type grass washing machine He make things convenient for blade.
Described spiral dewater 6 upper front end and bottom are respectively equipped with charging aperture 61 and water discharge outlet 62, and this bottom, spiral dewater 6 rear ends is provided with discharging opening 63.Spiral squeezes careless machine 7 inside and is provided with an extruding Reducing screw by the cylindrical housing encapsulation, and spiral squeezes careless machine 7 upper front end and rear end lower is respectively equipped with charging aperture 71 and discharging opening 73, and spiral squeezes careless machine 7 central bottom and is provided with water discharge outlet 72.
In the present embodiment, other structure and the existing structure of grass-carrying vehicle 1, first belt conveyor 2, chaffcutter 3, second belt conveyor 4, spiral dewater 6, spiral crowded careless machine 7, the 3rd belt conveyor 8 and batch cooking device 9 are basic identical, do not repeat them here.
Need to prove, as Fig. 3, Fig. 4 and shown in Figure 5, roller type grass washing machine 5 described in the present embodiment comprises that one is equipped with the tank 51 of water, the tapered shape in tank 51 bottoms is so that the impurity deposition, this tank 51 can be supported with stable by a support (not shown) and place, tank 51 two ends are respectively equipped with charging aperture 52 and discharging opening 53, tank 51 tops along with advance, discharging opening line vertical direction is parallel successively and be interval with a plurality of goat's horn rollers 54, these a plurality of goat's horn rollers 54 are arranged in the same horizontal plane, and described a plurality of goat's horn rollers 54 are driven and rotated with identical turning to by transmission device 59; In the present embodiment, be provided with six goat's horn rollers 54 in the described roller type grass washing machine 5, two groups of motors before and after transmission device is provided with, three goat's horn rollers of every group of driven by motor counterclockwise rotate, and connect by belt or decelerator between the goat's horn roller; Back one group of rotating speed of motor of close discharging opening 53 is a little more than last group of motor, block up (as another embodiment in the present embodiment to prevent that blade from producing at discharging opening 53 places, the rotating speed of each goat's horn roller is increased progressively to discharging opening one by one by charging aperture, thereby avoided careless class to stop up, washed careless effect) with raising.Waterlines 58 in the tank 51 are lower than the axial line of goat's horn roller 54 but are higher than the line of each goat's horn roller 54 bottom simultaneously, and in the present embodiment, tank 51 bottoms are provided with the automatic blowdown system 55 that can discharge impurity.
No matter big roller type grass washing machine 5 among the present invention stirs back and forth to grass as raw material under the drive of goat's horn roller, wash long, stone of grass time.Still the dust between the blade of grass all can effectively be removed.
Further, in the present embodiment, each goat's horn roller 54 center distance is 850～900mm; The goat's horn roller 54 of adjacent discharging opening 53 is 100～200mm with the shortest horizontal range of discharging opening 53; Described discharging opening 53 downsides exceed waterline 100～200mm; Be obliquely installed one between discharging opening 53 belows of described roller type grass washing machine and tank 51 bottoms and be convenient to the baffle plate 56 that blade is exported, the beeline of the goat's horn of last goat's horn roller 54 and baffle plate 56 is 100～200mm.
As shown in Figure 3, in the present embodiment, charging aperture 52 tops of described roller type grass washing machine are provided with a spray mouth of a river 57, and main effect is to prevent that dust from raising outward, to guarantee the operation site clean environment.
Described roller type grass washing machine to wash careless process as follows: the blade that is cut into certain size through chaffcutter 3 is fallen into the charging aperture 52 of roller type grass washing machine 5 by second belt conveyor, 4 ends under the gravity effect, the height of water level in the tank 51 is by overflow mechanism (not shown) control; Blade enters in the water under the effect of goat's horn roller 54, and along with the rotation of goat's horn roller 54 by under the water surface forward the operation; In the structure of described roller type grass washing machine, must control distance between the two goat's horn rollers 54 well, avoid blade to rotate and upwards stir, as much as possible blade be passed to next goat's horn roller 54, improve the efficient of washing grass with goat's horn roller 54.Blade is by behind last goat's horn roller 54, pushed the discharging opening 53 of roller type grass washing machine 5 by goat's horn roller 54, because discharging opening 53 positions exceed certain altitude than water level, help leaching the moisture in the blade like this, make moisture can not flow out the discharging opening 53 of roller type grass washing machine 5 along with blade, as much as possible moisture is stayed in the tank 51, the water that is beneficial to discharge behind the impurity carries out cycling and reutilization.
As shown in Figure 2, dogstail sheet after roller type grass washing machine 5 washings is at tilted-putted spiral dewater 6 enterprising one-step removal part water, and in the crowded careless machine 7 of spiral, squeeze the water out, dogstail sheet mass dryness fraction is brought up to 40%～50%, and its unit weight also increases, therefore, can further improve the dress pot amount of its subsequent step, enhance productivity; In addition, spiral squeezes 7 pairs of blades of careless machine and produces certain shearing force, and then makes the blade generation effect of tearing to a certain degree, helps cooking liquor like this and fully soaks blade, can improve pulp quality and shorten digestion time.
Further, in the present embodiment, described automatic blowdown system 55 is arranged on the lowest part of described tank conical lower portion vertically, and this automatic blowdown system 55 constitutes by a heavy seeds gatherer 551 and along be separated by top automatic pollution discharge valve 552 and below automatic pollution discharge valve 553, wash tub pipe 554 and the scum pipe 555 of a segment distance setting of heavy seeds gatherer direction; This automatic blowdown system 55 carries PLC controller (not shown), under normal operation, top automatic pollution discharge valve 552 is in opening, below automatic pollution discharge valve 553 is in closed condition, the impurity of precipitation falls into the heavy seeds gatherer between two valves gradually in the tank 51, when the impurity in the heavy seeds gatherer 551 reaches a certain amount of, the PLC controller cuts out top automatic pollution discharge valve 552 automatically, and below automatic pollution discharge valve 553 opened, wash tub pipe 554 washes downwards that (wash tub pipe also can upwards wash, stop up special circumstances such as drainage to handle impurity such as careless end), carry out deslagging, again lower valve is closed after having arranged, will go up valve opening, proceed blade and clean and contamination precipitation work.
Owing to adopted automatic blowdown system 55 in the roller type grass washing machine 5 of the present invention, therefore, can regularly carry out the deslagging operation, and when deslagging, the water in the tank 51 can not discharged, the water behind precipitation and the deslagging is still reusable; And, only needing to replenish a spot of water in roller type grass washing machine 5 runnings, additional water can utilize mthod of white water from paper making or middle water after treatment and not need to use clear water, so can save great amount of water resources.
Washing careless water can also handle like this: deliver to the settling tank of building in addition and carry out settlement action washing careless water pump, use slanted screen to screen before the sedimentation, remove large scale impurity such as the broken end of blade, the careless water of washing after the sedimentation can reuse, and the water of partial loss can use the middle water after the processing to replenish.
The equipment of getting the raw materials ready provided by the invention has advantage reasonable in design, stable, simple to operate, and because most impurity are washed by roller type grass washing machine 5, so the alkali lye consumption is less in machining process, because the moisture in the blade is squeezed careless machine by spiral and extrudes, can improve dress pot amount, shorten digestion time, improve pulp quality, be easy to black liquor recovery.
The above only is the schematic specific embodiment of the present invention, is not in order to limit scope of the present invention.Any those skilled in the art, equivalent variations of having done under the prerequisite that does not break away from design of the present invention and principle and modification all should belong to the scope of protection of the invention.
Claims (10)
1. the wet feed preparation method of a grass fiber raw material is used for the grass fiber raw material is carried out batch cooking, and this method may further comprise the steps:
(1) will send into chaffcutter from the dogstail raw material of charge make-up area;
(2) be admitted to a roller type grass washing machine through the blade after the chaffcutter cutting; Described roller type grass washing machine comprises that one is equipped with the tank of water, the tapered shape of bottom of gullet, the tank two ends are respectively equipped with charging aperture and discharging opening, tank top is along parallel successively with charging and discharging mouth line vertical direction and be interval with a plurality of goat's horn rollers, and these a plurality of goat's horn rollers are arranged in the same horizontal plane; Blade washs in water under the goat's horn roller strap that rotates is moving, and the impurity in the blade is deposited in the bottom of gullet of roller type grass washing machine and is discharged by an automatic blowdown system, and the blade after the cleaning is by the discharging opening output of roller type grass washing machine;
(3) blade after the cleaning is admitted to spiral and squeezes careless machine, squeezes careless machine by spiral the water in the blade is extruded, to improve the mass dryness fraction of blade;
(4) will squeeze the blade of exporting the careless machine from spiral and send into the batch cooking device with certain mass dryness fraction.
2. the wet feed preparation method of grass fiber raw material as claimed in claim 1 is characterized in that: the dogstail raw material of charge make-up area is to be transported to first belt conveyor by grass-carrying vehicle, by this first belt conveyor the dogstail raw material is sent in the chaffcutter again; Blade after the described cutting is sent into the charging aperture of roller type grass washing machine by second belt conveyor; Blade after the cleaning is sent into described spiral by a tilted-putted spiral dewater and is squeezed in the careless machine.
3. the wet feed preparation equipment of a grass fiber raw material is characterized in that: this equipment of getting the raw materials ready is provided with chaffcutter, roller type grass washing machine, spiral in regular turn and squeezes careless machine and batch cooking device; Described roller type grass washing machine comprises that one is equipped with the tank of water, the tapered shape of bottom of gullet, the tank two ends are respectively equipped with charging aperture and discharging opening, tank top is along parallel successively with charging and discharging mouth line vertical direction and be interval with a plurality of goat's horn rollers, and these a plurality of goat's horn rollers are arranged in the same horizontal plane; Bottom of gullet is provided with the automatic blowdown system that can discharge impurity.
4. the wet feed preparation equipment of grass fiber raw material as claimed in claim 3 is characterized in that: the charging aperture top of described roller type grass washing machine is provided with a spray mouth of a river.
5. the wet feed preparation equipment of grass fiber raw material as claimed in claim 3 is characterized in that: be obliquely installed one between the discharging opening below of described roller type grass washing machine and the bottom of gullet and be convenient to the baffle plate that blade is exported.
6. the wet feed preparation equipment of grass fiber raw material as claimed in claim 3 is characterized in that: the described equipment of getting the raw materials ready also comprises the grass-carrying vehicle of the dogstail raw material being sent into first belt conveyor of chaffcutter and the dogstail raw material being delivered to first belt conveyor by the charge make-up area; Between described chaffcutter and roller type grass washing machine, also be provided with second belt conveyor; Between roller type grass washing machine and the crowded careless machine of spiral, be provided with a tilted-putted spiral dewater; Between crowded careless machine of spiral and batch cooking device, be provided with the 3rd belt conveyor.
7. the wet feed preparation equipment of grass fiber raw material as claimed in claim 6 is characterized in that: the belt top of described second belt conveyor is provided with magnet; Described spiral dewater upper front end and bottom are respectively equipped with charging aperture and water discharge outlet, and this bottom, spiral dewater rear end is provided with discharging opening.
8. roller type grass washing machine, it is characterized in that: described roller type grass washing machine comprises that one is equipped with the tank of water, the tapered shape of bottom of gullet, the tank two ends are respectively equipped with charging aperture and discharging opening, tank top is along parallel successively with charging and discharging mouth line vertical direction and be interval with a plurality of goat's horn rollers, and these a plurality of goat's horn rollers are arranged in the same horizontal plane; Bottom of gullet is provided with the automatic blowdown system that can discharge impurity.
9. roller type grass washing machine as claimed in claim 8 is characterized in that: the charging aperture top of described roller type grass washing machine is provided with-sprays the mouth of a river.
10. roller type grass washing machine as claimed in claim 8 is characterized in that: the baffle plate that is obliquely installed-is convenient to blade output between the discharging opening below of described roller type grass washing machine and the bottom of gullet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100913521A CN101660283B (en) | 2009-08-19 | 2009-08-19 | Wet materials preparing method of grass fiber raw materials, materials preparing equipment and roller type grass washing machine thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100913521A CN101660283B (en) | 2009-08-19 | 2009-08-19 | Wet materials preparing method of grass fiber raw materials, materials preparing equipment and roller type grass washing machine thereof |
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| Publication Number | Publication Date |
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| CN101660283A CN101660283A (en) | 2010-03-03 |
| CN101660283B true CN101660283B (en) | 2011-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100913521A Expired - Fee Related CN101660283B (en) | 2009-08-19 | 2009-08-19 | Wet materials preparing method of grass fiber raw materials, materials preparing equipment and roller type grass washing machine thereof |
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| CN114405926A (en) * | 2022-01-26 | 2022-04-29 | 滨州泽郦精密金属科技有限公司 | Intelligent cleaning device for precise metal fittings |
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