CN102250961B - System for preparing sizing agent - Google Patents

System for preparing sizing agent Download PDF

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Publication number
CN102250961B
CN102250961B CN2010101831042A CN201010183104A CN102250961B CN 102250961 B CN102250961 B CN 102250961B CN 2010101831042 A CN2010101831042 A CN 2010101831042A CN 201010183104 A CN201010183104 A CN 201010183104A CN 102250961 B CN102250961 B CN 102250961B
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China
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raw material
particle diameter
riffler
large particle
toothed elements
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CN2010101831042A
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CN102250961A (en
Inventor
岳国君
柳树海
严明奕
刘玉华
刘小平
崔师泰
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GUANGXI COFCO BIO-ENERGY Co Ltd
Cofco Corp
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GUANGXI COFCO BIO-ENERGY Co Ltd
Cofco Corp
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Priority to CN2010101831042A priority Critical patent/CN102250961B/en
Publication of CN102250961A publication Critical patent/CN102250961A/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/10Biofuels, e.g. bio-diesel

Abstract

The invention discloses a system for preparing a sizing agent. The system comprises a supplying device, a grading device, a first conveying device, a sand sediment trap, a second conveying device, an impurity removing device, a smashing device, a third conveying device and a pulping device, wherein the impurity removing device is arranged in a conveying line of the second conveying device; the third conveying device is connected with the smashing device and the pulping device; the pulping device is connected with sand sediment trap; the sand sediment trap comprises a trap body, an inlet and an outlet; a small-particle-size raw material or slurry formed by the small-particle-size raw material and water enters the trap body through the inlet; the trap body comprises a side wall and a bottom; the outlet is formed on the side wall; and the bottom is provided with at least one bump and/or at least one recess. According to the system for preparing the sizing agent, fine impurities are cleared by using the sand sediment trap; and light impurities are cleared by using the impurity removing device, so that clearing of the light impurities is realized.

Description

A kind of system for preparing slurry
Technical field
The present invention relates to chemical field, more particularly, relate to a kind of system of the slurry for the preparation of alcohol production.
Background technology
In the various occasions of industrial application, often need the preparation of slurry.For example, in the factory that produces ethanol, common technological process is: at first by e Foerderanlage raw material (such as bulk, sheet or granular cassava, Ipomoea batatas, potato etc.) is delivered to shredding unit, then by this shredding unit will be larger raw material pulverizing be less or thinner raw material, then by pulping device water and thinner raw material are mixed, thereby the formation slurry carries out enzymolysis and fermentative processing to the slurry that obtains again, obtains at last ethanol.
In this traditional technological process, always can be doped with foreign material inevitably in the raw material of carrying, such as the residue of the plastics such as the plastic cloth of more tiny sand, larger stone or fringe shape or woven bag.And raw material can not obtain clean up hill and dale before entering the processing treatment operation, particularly in the many especially situations of raw material.
The foreign material that mix in raw material mainly comprise two kinds, and the density of the density ratio raw material of the first foreign material itself is much bigger, for example, as the sandy soil of foreign material with respect to the cassava as raw material, as the stone of foreign material with respect to as coal cinder of raw material etc.; The second foreign material belong to the material of comparison lightweight, for example, and with respect to woven bag or the plastics bag residue of cassava raw material.
For the first foreign material, if the volume of foreign material large (such as larger stone), then the foreign material that volume is larger directly take out easily; If but the small volume of foreign material or particle diameter less (such as sandy soil), then be difficult to this tiny eliminating impurities, and the raw material that is doped with tiny foreign material can exist in raw material after pulverizing, the slurry always, can have a strong impact on the carrying out of follow-up enzymolysis and zymotechnique, the quality that finally makes ethanol is had disadvantageous effect.
For the second foreign material, enter subsequently pulverizing process if be doped with the raw material of the light weight sundries (such as woven bag or plastics bag residue) of this softness, after after a while, with together easily generation accumulation in course of conveying subsequently of pulverized foreign material of raw material, thereby cause obstruction, the staff has to check and the position blocked occurs carrying out removal treatment, during this operation cost, effort and affect the normal operation of whole production line; In addition, this foreign material enter (as utilizing cassava to prepare in the technique of ethanol) subsequently such as fermentation or enzymolysis operation, also can have a strong impact on the carrying out of normal chemical reaction, thereby cause the deterioration in quality that obtains.
Because the legacy system of preparation slurry can not be removed foreign material in the raw material effectively, therefore, need a kind of above-mentioned two kinds of foreign material can removings from raw material, with the system of the slurry that makes the foreign material that undope.
Summary of the invention
The object of the invention is to overcome existing pulping system and can not effectively remove the defective of foreign material, and a kind of system of the preparation slurry that foreign material can be removed from raw material is provided.
According to an aspect of the present invention, a kind of system for preparing slurry is provided, this system comprises: feed device, this feed device is used for supplying raw material, described raw material comprises small particle size raw material and large particle diameter raw material, be doped with tiny foreign material in the small particle size raw material, be doped with light weight sundries in the large particle diameter raw material; Sorting equipment, this sorting equipment are used for being classified as from the raw material of feed device small particle size raw material and large particle diameter raw material; The first e Foerderanlage and riffler, this first e Foerderanlage connects described sorting equipment and riffler, is used for the small particle size raw material is transported to described riffler; The second e Foerderanlage, knot screen and shredding unit, described the second e Foerderanlage connects described sorting equipment and shredding unit, be used for large particle diameter raw material is delivered to described shredding unit, described knot screen is arranged in the delivery conduit of described the second e Foerderanlage and processes to be used for that the described large particle diameter raw material of carrying along this delivery conduit is carried out removal of impurities; The 3rd e Foerderanlage and pulping device, described the 3rd e Foerderanlage connects described shredding unit and pulping device, large particle diameter raw material after being used for pulverizing is delivered to described pulping device, described pulping device also is connected with described riffler, be used for receiving the slurries from the described small particle size raw material of being mixed with of riffler, wherein, described riffler comprises cell body, entrance and exit, the slurries that described small particle size raw material or itself and water form enter in the described cell body by described entrance, described cell body comprises sidewall and bottom, described outlet is arranged on the described sidewall, and described bottom has at least one bossing and/or at least one sunk part.
System according to preparation slurry provided by the present invention, in the process of transferring raw material, at first use sorting equipment (such as the vibrations sizing screen) that raw material is divided into small particle size raw material and large particle diameter raw material, then tiny foreign material can be entrained in the small particle size raw material, light weight sundries then can be entrained in large particle diameter raw material, thereby above-mentioned two kinds of foreign material of different nature are separated.
Afterwards, the small particle size raw material that will be doped with tiny foreign material by the first e Foerderanlage is delivered to riffler, thereby utilize the different densities of small particle size raw material and tiny foreign material, by the sedimentation principle small particle size raw material and tiny foreign material are separated, and obtain to be mixed with the slurries of small particle size raw material, realize the removing of tiny foreign material.
Large particle diameter raw material for being doped with light weight sundries is transported to shredding unit by the second e Foerderanlage, but is provided with knot screen at the delivery conduit of the second e Foerderanlage.Thereby, when the large particle diameter raw material that is doped with light weight sundries when the delivery conduit of the second e Foerderanlage is carried, can light weight sundries be cleared out from large particle diameter raw material by this knot screen, thereby realize the removing of light weight sundries.
Then, will be delivered to pulping device via the raw material that shredding unit is pulverized, the slurries that will be mixed with simultaneously the small particle size raw material also are delivered to pulping device, thereby carry out the preparation of slurry by this pulping device.Obviously, by the system of preparation slurry provided by the present invention, in the slurry that makes, can not be doped with various foreign material, avoid foreign material to subsequently enzymolysis and the disadvantageous effect of fermentation, overcome the defective that to remove foreign material in traditional preparation paste system.
Description of drawings
Fig. 1 is the synoptic diagram according to the system of the preparation slurry of one embodiment of the present invention;
Fig. 2 is the synoptic diagram of the annexation of the endless belt conveyor of the system shown in Fig. 1 and transport pipe and shredding unit;
Fig. 3 to Fig. 6 is the synoptic diagram according to the numerous embodiments of removal of impurities pawl of the present invention;
Fig. 7 is the schematic perspective view according to the another kind of embodiment of removal of impurities pawl of the present invention;
Fig. 8 is the side-view of removal of impurities pawl shown in Figure 7;
Fig. 9 is the schematic perspective view according to another embodiment of removal of impurities pawl of the present invention;
Figure 10 is the schematic perspective view according to the part of transport pipe of the present invention;
Figure 11 is the sectional view of transport pipe among Figure 10;
Figure 12 is the sectional view according to a kind of embodiment of riffler of the present invention;
Figure 13 is the sectional view according to the another kind of embodiment of riffler of the present invention;
Figure 14 is the synoptic diagram of a kind of embodiment of spray tube.
Embodiment
Below with reference to accompanying drawing the specific embodiment of the present invention is described in detail.
As shown in Figure 1, the system of preparation slurry provided by the present invention comprises:
Feed device, this feed device are used for supplying raw material, and described raw material comprises small particle size raw material and large particle diameter raw material, is doped with tiny foreign material in the small particle size raw material, is doped with light weight sundries in the large particle diameter raw material; Sorting equipment, this sorting equipment are used for being classified as from the raw material of feed device small particle size raw material and large particle diameter raw material;
The first e Foerderanlage and riffler, this first e Foerderanlage connects described sorting equipment and riffler, is used for the small particle size raw material is transported to described riffler;
The second e Foerderanlage, knot screen and shredding unit, described the second e Foerderanlage connects described sorting equipment and shredding unit, be used for large particle diameter raw material is delivered to described shredding unit, described knot screen is arranged in the delivery conduit of described the second e Foerderanlage and processes to be used for that the described large particle diameter raw material of carrying along this delivery conduit is carried out removal of impurities;
The 3rd e Foerderanlage and pulping device, described the 3rd e Foerderanlage connects described shredding unit and pulping device, large particle diameter raw material after being used for pulverizing is delivered to described pulping device, described pulping device also is connected with described riffler, be used for receiving the slurries from the described small particle size raw material of being mixed with of riffler, wherein
Described riffler comprises cell body, and this cell body comprises entrance, outlet, sidewall and bottom, and described entrance and exit is arranged on the described sidewall, and described bottom has at least one bossing and/or at least one sunk part.
Described feed device is used for supplying raw material to sorting equipment.This feed device can have various ways, such as belt pulley transfer roller etc.In embodiment shown in Figure 1, feed device comprises scraper conveyor 100 and minute batch bin 101.When supplying raw material, scraper conveyor 100 is delivered to raw material minute batch bin 101 from storage place, then by this minute batch bin 101 to sorting equipment 102 supply.
Sorting equipment 102 receives the raw material from feed device, and this raw material is carried out classification, thereby raw material is divided into the small particle size raw material that is doped with tiny foreign material and is doped with the large particle diameter raw material of light weight sundries.This sorting equipment 102 can be for raw material being divided into arbitrarily the sorting equipment of small particle size raw material and large particle diameter raw material, such as vibrations sizing screen or sizing screen etc.
The first e Foerderanlage connects described sorting equipment 102 and riffler 106, is transported to described riffler 106 for the small particle size raw material that will be doped with tiny foreign material.The first e Foerderanlage can have various ways, such as rotary conveyor, scraper conveyor etc.In embodiment shown in Figure 1, the first e Foerderanlage comprises worm conveyor 103, chapelet 104 and the first powder storehouse 105.Worm conveyor 103 receives the small particle size raw material from sorting equipment 102, and this small particle size raw material is risen to by chapelet 104 in the first powder storehouse 105 of higher position, by the raw material of this first powder storehouse 105 to riffler 106 supply small particle size.
Mix and enter in the riffler 106 at small particle size raw material and water, thereby by this riffler 106 small particle size raw material and the tiny foreign material that are entrained in the small particle size raw material are separated.Tiny foreign material are deposited on the bottom of riffler 106, and through the slurries of riffler 106 the small particle size raw material are taken away.By riffler 106, the tiny eliminating impurities that is entrained in the raw material can be gone out.Structure and operation logic about riffler 106 will be described in detail hereinafter.
With reference to figure 1, the system of preparation slurry provided by the present invention also comprises the second e Foerderanlage, knot screen and shredding unit 111, described the second e Foerderanlage connects described sorting equipment 102 and shredding unit 111, be used for large particle diameter raw material is delivered to described shredding unit 111, described knot screen is arranged in the delivery conduit of described the second e Foerderanlage, processes to be used for that the described large particle diameter raw material of carrying along this delivery conduit is carried out removal of impurities.
The second e Foerderanlage can be for various existing devices that can transferring raw material, such as worm conveyor etc.In embodiment shown in Figure 1, the second e Foerderanlage comprises hopper 107, endless belt conveyor 108(such as rotary conveyor) and the suction type transfer roller.Hopper 107 receives the large particle diameter raw material from sorting equipment 102, and is delivered to shredding unit 111 by endless belt conveyor 108 and suction type transfer roller.Because the delivery conduit at the second e Foerderanlage is provided with knot screen, thereby utilize this knot screen to separate along the delivery conduit of the second e Foerderanlage large particle diameter raw material of carrying and the light weight sundries that is entrained in the raw material, realize the removing of light weight sundries.About the structure of this knot screen with arrange and to describe in detail hereinafter.
The suction type transfer roller comprises suction nozzle, and the conveying belt output raw material place of this suction nozzle and endless belt conveyor 108 is adjacent, thereby works as raw material and leave conveying belt and in the dropping process, can be subject to again the effect of the suction force of suction nozzle.Because the density of raw material (being generally grain raw material) is less, weight is lighter, thereby the raw material of particle diameter can be inhaled in the suction nozzle greatly, thereby enters in the suction type transfer roller.But, if be doped with relatively large foreign material in the large particle diameter raw material, such as stone, obviously because this kind foreign material density is large and weight is larger, can not suck in the suction nozzle, thereby by the suction type transfer roller, can prevent that larger foreign material from entering in subsequently pulverizing, the pulping process.
Described the 3rd e Foerderanlage connects described shredding unit 111 and pulping device 117, large particle diameter raw material after being used for pulverizing is delivered to described pulping device 117, described pulping device 117 also is connected with described riffler 106, is used for receiving the slurries from the described small particle size raw material of being mixed with of riffler 106.
The 3rd e Foerderanlage can be for various existing devices that can transferring raw material, such as endless belt conveyor, worm conveyor etc.In system shown in Figure 1, the 3rd e Foerderanlage comprises discharging hopper 112, worm conveyor 113, the second powder storehouse 114 and worm conveyor 115,116, wherein in worm conveyor 116, add an amount of water, enter in the pulping device 117 so that the raw material after pulverizing and water are mixed into slurries.
Simultaneously, pulping device 117 also is connected with riffler 106, that is to say, the slurries that are mixed with the small particle size raw material also flow in the pulping device 117, thereby mixes with formed slurries of raw material after pulverizing.As mentioned above, in the system of preparation slurry provided by the present invention, go out by the tiny eliminating impurities that riffler 106 will be entrained in the small particle size raw material, the light weight sundries that will be entrained in the large particle diameter raw material by the knot screen in the delivery conduit that is arranged on the second e Foerderanlage clears out.Thereby, can not be doped with again various foreign material in the prepared slurry of the system of preparation slurry provided by the present invention, thereby overcome the defective that exists in traditional system.
More than component devices and the operational process thereof of the system of preparation slurry provided by the present invention described in detail, the below is respectively to the integral part of the system of preparation slurry of the present invention: structure and the setting thereof of riffler and knot screen describe in detail.
Extremely shown in Figure 4 such as Fig. 2, described riffler 106 comprises cell body 71, entrance 72 and exports 73, the slurries of the small particle size raw material that described sorting equipment 102 is discharged or itself and water formation enter in the described cell body 71 by the entrance 72 of described riffler 106, described cell body 71 comprises sidewall 74 and bottom 75, described outlet 73 is arranged on the described sidewall 74, and described bottom 75 has at least one bossing 76 and/or at least one sunk part 77.
In riffler 106, be mixed with the slurries 80 of small particle size raw material in flow process, because the density of tiny foreign material (such as the grains of sand) precipitates more greatly and at first with respect to the density of raw material and water, form the tiny foreign material 82 of deposition in the bottom 75 of riffler 106, and the density of raw material is light and be suspended in the water and with water flow.By the slurries that carry feed particles are flowed out so that feed particles is separated with the grains of sand from exporting 73, thereby realize the removing of tiny foreign material (such as sand).
Cell body 71 can be different shape and structure, as long as have certain volume and the bottom has at least one bossing 76 and/or at least one sunk part 77.For example, the peripheral cross section of described cell body 71 (cross section that namely is parallel to the bottom) shape can be rectangle, circle or oval.The size in each peripheral cross section of described riffler can be the same or different, the big or small identical or edge in preferred each peripheral cross section is towards the direction of bottom, the size in described peripheral cross section reduces gradually, forms along the uncovered trapezoidal shape that is shaped as perpendicular to the cross section (being Fig. 2 middle section) of bottom direction.
In riffler 106, entrance 72 can be arranged on the position that can make arbitrarily slurries 80 flow into cell body 71, described entrance 72 can be the opening (as shown in Figure 3) that is positioned on cell body 71 sidewalls, also can be the pipeline that is placed on cell body 71 sidewalls or gos deep into cell body inside.In order the tiny foreign material 82 that deposit not to be caused interference, further improve the desilting effect, preferred described entrance 72 is arranged on middle and upper part or the top of cell body 71, further the top of preferred described entrance 72 and the distance between the bottom 75 (" and the distance between the bottom 75 " described in the present invention all refer to and bottom 75 bottom between vertical range) be the 80-100% of the vertical height of cell body 71 these sidewalls (being provided with the sidewall of entrance 72).Further preferably, for the ease of flowing of slurries 80, also for the remove sand desilting effect of groove of Effective Raise, described entrance 72 is separately positioned on two relative sidewalls 74 with outlet 73, particularly when the cross section (cross section as shown in Figures 2 and 3) of described riffler be rectangle or when trapezoidal, further preferred described entrance 72 is separately positioned on two distant relative sidewalls 74 with outlet 73, like this, big or small identical at other condition such as riffler, the desilting disengaging time that can obtain to grow in the identical situation of slurries 80 flow velocitys, the effect thereby Effective Raise removes sand.The size of described entrance 72 and outlet 73 can be determined according to actual needs.
Described outlet 73 can be arranged on and can make arbitrarily slurries 80 flow out the position of cell body 71, and preferably as mentioned above, described outlet 73 is arranged on the sidewall relative with entrance 72 place sidewalls.For the tiny foreign material 82 that effectively make deposition are stayed in the cell body 71, further improve the desilting effect, preferred described outlet 73 is arranged on middle and upper part or the top of cell body 71, further preferred described outlet 73 bottom and the distance between the bottom 75 be the 50-95% of the vertical height of cell body 71 these sidewalls (being provided with the sidewall of outlet 73).Further under the preferable case, the distance between the top of described outlet 73 and the bottom 75 less than described entrance 72 bottom and the distance between the bottom 75, export like this 73 and form the form that is similar to overflow weir.
Preferably, outlet 73 can comprise baffle plate, and regulates position and the size of outlet 73 by baffle plate.Particularly, by hide the bottom of outlet 73 with baffle plate, can regulate outlet 73 bottom and the distance between the bottom 75, the size that can also regulate outlet 73.Obviously, also can form the opening that extends through the bottom of sidewall 74 from the top of sidewall 74 downwards at the sidewall 74 at outlet 73 places, use the part that a plurality of baffle plates cover this opening can form outlet 73, by regulating the position of a plurality of baffle plates, can free adjustment export 73 position and size.
Distance between outlet 73 and the bottom 75 can be regulated, and on the one hand, when the sidewall at outlet 73 places was piled up, the position of heightening outlet 73 can prevent that the grains of sand from overflowing in that the grains of sand are more; On the other hand, when precipitation also occurs greatly because of autologous density in the cassava particle, flow velocity according to slurries 80 is different, the cassava particle with water flow to the outlet 73 places sidewall the time, the height of cassava particle in cell body 71 is different, because riffler 106 can only allow to export the above water of the height at 73 places and the cassava particle flows out, by reduce to export 73 and bottom 75 between distance, can allow cassava particle as much as possible to flow out with water.
Among the present invention, the movement of streamwise occurs under the impact of the current that flow above it for the tiny foreign material 82 that prevent from depositing, thereby accumulate on the sidewall at outlet 73 places, perhaps overflow from exporting 73 when overheap, the bottom 75 of the cell body 71 of riffler 106 has at least one bossing 76 and/or at least one sunk part 77.Preferably, bottom 75 has a plurality of bossings 76 and/or a plurality of sunk part 77, and these a plurality of bossings 76 and/or a plurality of sunk part 77 are arranged along the direction from entrance 72 to outlet 73, namely arranges along the flow direction of slurries 80.
The tiny foreign material 82 of deposition are deposited on the bottom of cell body 71; when the tiny foreign material 82 of deposition are subject to the impact of current of its top and streamwise when moving, the grains of sand can move in the sunk part 77 or be stopped by bossing 76 and can not continue streamwise and move.Even the grains of sand are deposited on the top of bossing 76 at the beginning, this part grains of sand also can move with the current of its top, then is deposited on sunk part 77 bottom.Therefore, the tiny foreign material 82 of deposition can not move to the sidewall at outlet 73 places basically, thereby prevent that the grains of sand are stacked into outlet 73 and overflow from exporting 73.
Be subject to the flow effect of the current of top for the tiny foreign material 82 that further prevent from depositing, on cross section shown in Figure 2, be longitudinal cross-section (be parallel to from entrance 72 to outlet 73 direction and perpendicular to the cross section of horizontal plane), bossing 76 and sunk part 77 form trapezoidal.Certainly, bossing 76 and sunk part 77 can also form the shape that tiny foreign material 82 streamwises that can help arbitrarily barrier deposition move, such as waviness, trilateral etc.Preferably, bossing 76 and sunk part 77 form the inclined-plane that has horizontal by 30-60 °, thereby are conducive to stop that grains of sand streamwise moves.
Certainly, the bottom 75 of riffler 106 also can have a sunk part 77(as shown in Figure 3), perhaps have a bossing 76.When bottom 75 has a bossing 76 or a sunk part 77, can suitably increase the size of bossing 76 and sunk part 77.The amount of the grains of sand that can hold in the sunk part 77 as shown in Figure 3, is equivalent to the summation of the amount of the grains of sand that each sunk part 77 can hold among Fig. 2.
In order can effectively to hold the grains of sand and to prevent that the grains of sand from moving freely, preferably, bossing 76 and/or sunk part 77 streamwises are arranged on the postmedian of bottom 75.When described bottom 75 has a plurality of bossings 76 and/or sunk part 77, and these a plurality of bossings 76 and/or sunk part 77 streamwise spread configurations in the bottom 75 postmedian.Wherein, the area percentage of the shared bottom 75 of bossing 76 and sunk part 77 is 40-60%.Distance between the top of described bossing 76 and the bottom 75 be not more than outlet 73 bottom and the distance between the bottom 75, further the height relief of preferred bottom 75 (the top of bottom 75 and bottom between vertical range) with the ratio of the height of the sidewall at outlet 73 places be 1:5-1:3.Described bossing 76 can be integrally formed with cell body bottom 75, also can be for being fixed on the baffle plate of bottom 75.Described sunk part 77 can be integrally formed with cell body bottom 75, also can be the groove between a plurality of bossings 76.
When feed particles (such as the cassava particle) swam on the water surface fully, this feed particles can obtain collecting by flowing out outlet 73 basically, but also can some feed particles was subject to the obstruction of the grains of sand and is deposited to the tiny foreign material 82 of deposition with the grains of sand.In addition, because the density of feed particles is larger, feed particles also can be sunk in water.In this case, if flow velocity is inadequate, water flow to the outlet 73 places sidewall the time, some feed particles may also be deposited to the below, position of outlet 73, can not flow out from exporting 73, and and then deposit to the top layer of the tiny foreign material 82 of deposition, thereby cause waste.
For addressing this problem, preferably, riffler 106 comprises can jet-stream wind and/or the jet apparatus of current.This jet apparatus be arranged on deposition tiny foreign material 82 the top and can be towards top layer jet-stream wind and/or the current of tiny foreign material 82 of deposition, thereby drive the small particle size feed particles Eddy diffusion on top layer of tiny foreign material 82 of deposition in water, and flow out outlet 73 with the water of tiny foreign material 82 tops of deposition.In this process; jet apparatus can spray air-flow and/or the current of suitable intensity; so that the feed particles in the top layer of the tiny foreign material 82 of deposition floats to the position away from the tiny foreign material 82 of deposition; although this may make some grains of sand in the tiny foreign material 82 of deposition also floating; but the grains of sand can sink rapidly because density is large, therefore basically can not taken away by current.
Particularly, as shown in Figure 2, jet apparatus comprises at least one spray tube 78.Each spray tube 78 comprises body and a plurality of hole P that are positioned on the body separately, and air-flow and/or current spray by hole P.Obviously, can use various pumps or suction unit to make hole P jet-stream wind and/or current.
Each spray tube 78 can be set to across two of riffler 106 relative sidewalls, for example, can laterally be arrangeding in parallel along riffler 106, perhaps as shown in Figure 2 a kind of embodiment is like that along the parallel longitudinal setting of riffler 106, also can be along being predetermined angle and be arrangeding in parallel with horizontal and vertical.Certainly, spray tube 78 also can be arranged in a crossed manner.On each spray tube 78 a plurality of hole P can be set, according to the layout of spray tube 78, preferably have 10 holes on every meter the body, the diameter in hole can be 3-6mm.
Because the continuity of desanding operation, the thickness of the tiny foreign material 82 of riffler 106 interior depositions may be different, are arranged on all the time the top of the tiny foreign material 82 of deposition for making spray tube 78, and preferably, the distance between the body of spray tube 78 and the bottom 75 can be regulated.For example, can spray tube 78 across two sidewalls at least one slideway is set, at least one end of spray tube 78 can be arranged in this slideway and along this slideway and slide, thereby can be along the vertical height direction adjusting spray tube 78 of described two sidewalls and the distance between the bottom 75.
Preferably, hole P is set to alignment recess part 77 and/or bossing 76 and entrance 72 and/or exports the groove that forms between the sidewall at 73 places.Namely, when the groove that forms between bottom 75 has that sunk part 77(comprises and bottom 75 is integrally formed depression and two bossings 76) time, hole P alignment recess part 77; When the bottom only has a bossing 76, hole P alignment bumps part 76 and entrance 72 and/or export groove between 73.
The hole P of spray tube 78 preferably is set to spray towards the top layer of the tiny foreign material 82 of deposition, and therefore, hole P preferably is set to 75 injections towards the bottom.More preferably, hole P is set to be the angle A Jet with downward flow direction along flow direction or horizontal plane with slurries 80, be that the axis of hole P is horizontal by the angle A Jet with downward flow direction, angle A is preferably 30-60 °, thereby the tiny foreign material 82 of deposition in a big way in driving cassava particle, avoid simultaneously making the grains of sand also floating.Such as Fig. 2 and shown in Figure 4, spray tube 78 arranges along horizontal (filled arrows is depicted as flow direction among Fig. 4, and flow direction is vertical) of riffler 106, and hole P is set to favour downward 45 ° of horizontal direction (shown in Fig. 4 hollow core arrow) and sprays.
Spray tube 78 is arranged on outlet is conducive to the injected air-flow of cassava particle near 73 and/or current blow and taken away by current rapidly, but be arranged near the air-flow of spray tube 78 injections the outlet 73 or the speed of current and will be controlled at proper range, avoid the grains of sand are also blown and take away, for example 1m/s.In addition, can also spray tube 78 be set in the position away from outlet 73, in this case, spray tube 78 can provide than the air-flow of hard intensity and/or current, for example 3m/s.
In embodiments of the present invention, in order to realize the continuous operation of removing sand, can adopt the whole bag of tricks to make slurries 80 or water flow, for example can use pump or other suction unit or utilize the potential energy of slurries 80 that slurries 80 are flowed into from entrance 72, and then make water carry the cassava particle from exporting 73 outflows.Preferably, can control by pump the velocity of flow of slurries 80.Especially relatively large to density cassava particle can prevent further that by accelerating flow velocity the cassava particle from precipitating.
Because therefore the relative open to the outside world in top of riffler 106 is convenient to monitoring, obtains the height of best flow velocity and outlet 73 with adjusting.
Obviously, described riffler also can be realized the enclosed operation of removing sand.But hands-off operation only limits to isolate the cassava particle that can swim in fully in the water.In closed when operation of removing sand, can make slurries 80 in riffler 106, leave standstill predetermined time so that the grains of sand are deposited to bottom 75 fully, then make the Tapioca Starch that swims in the water derive riffler 106 with current, similarly, in closed when operation of removing sand, also can in riffler 106, jet apparatus be set, thereby avoid the cassava particle to be subject to the obstruction of the grains of sand and deposit to the tiny foreign material 82 of deposition, cause waste.
Below with reference to Fig. 5 to Figure 14, the setting of knot screen is described in detail.
In the delivery conduit of described the second e Foerderanlage, be provided with knot screen, namely this knot screen be arranged in large particle diameter raw material described delivery conduit must through the position.
Here so-called delivery conduit refers to, the large particle diameter raw material that is doped with light weight sundries in course of conveying circuit or the path of process.For example, the second e Foerderanlage can comprise endless belt conveyor (such as rotary conveyor), and the path that then is doped with large particle diameter raw material process on the conveying belt of endless belt conveyor of light weight sundries is to be doped with the large particle diameter raw material of light weight sundries through the delivery conduit of this endless belt conveyor.In this case, described knot screen can comprise removal of impurities pawl 109, and the conveying belt that this removal of impurities pawl 109 is positioned at described endless belt conveyor 108 is exported the below at large particle diameter raw material place.The conveying belt that removal of impurities pawl 109 can be installed in endless belt conveyor 108 is exported on the frame of below at large particle diameter raw material place (as shown in Figure 5), also can be installed in the appropriate location of endless belt conveyor 108, as long as on above-mentioned delivery conduit, can play the removal of impurities effect to the large particle diameter raw material that is doped with light weight sundries.
When the large particle diameter raw material of the tape transport of endless belt conveyor 108 left conveying belt, large particle diameter raw material can move down downwards or tiltedly under action of gravity.Since conveying belt export large particle diameter raw material place below be provided with removal of impurities pawl 109 as the removal of impurities effect, thereby, large particle diameter raw material will inevitably pass through removal of impurities pawl 109, and be subject to the removal of impurities effect of this removal of impurities pawl 109, thereby the light weight sundries that mixes in the large particle diameter raw material is retained on the removal of impurities pawl 109, realizes removing the purpose of foreign material.Although the endless belt conveyor 108 shown in Fig. 1 is the horizontal direction setting, the set-up mode of endless belt conveyor 108 is not limited to this, endless belt conveyor 108 also tiltable settings.
For another example, as shown in Figure 5, described e Foerderanlage comprises endless belt conveyor and transport pipe 110, this transport pipe 110 connects described endless belt conveyor 10 and shredding unit 111, described knot screen comprises removal of impurities pawl 109, and described removal of impurities pawl 109 is arranged in the below that conveying belt that described transport pipe 110 and/or this removal of impurities pawl 109 be positioned at described endless belt conveyor 108 is exported large particle diameter raw material place.This transport pipe 110 matches with described endless belt conveyor 108, to receive the large particle diameter raw material from described endless belt conveyor 108.
Transport pipe 110 can arrange arbitrarily, is passed to shredding unit 111 with the large particle diameter raw material that endless belt conveyor can be transported and is limited.For example, transport pipe 110 is positioned at the position lower than endless belt conveyor 108, in other words, transport pipe 110 from conveying belt export large particle diameter raw material downwards or tiltedly the below extend, the particle diameter raw material can relatively easily be carried in transport pipe 110 under action of gravitation like this, greatly.Transport pipe 110 as shown in Figure 5, transport pipe 110 can be the suction type transfer roller, namely transport pipe 110 is exported large particle diameter raw material upward or the oblique upper extension from conveying belt.Owing to make the larger negative pressure of formation in the transport pipe 110 by high-power vacuum fan in the suction type transfer roller, thereby when large particle diameter raw material passes through the port of transport pipe 110, can be inhaled in the transport pipe 110, and in transport pipe 110, carry.In this case, be entrained in the larger foreign material of density in the large particle diameter raw material, such as stone etc., because gravity can not suck in the transport pipe 110 more greatly and generally.Therefore, this embodiment has the function of removing heavier foreign material.
In this case, large particle diameter raw material is transported in the shredding unit 111 via transport pipe 110, to pulverize through after the conveying of endless belt conveyor.Described knot screen comprises removal of impurities pawl 109, this removal of impurities pawl 109 can be for one or more, the conveying belt that one or more removal of impurities pawls can be positioned at endless belt conveyor 108 is exported the below at large particle diameter raw material place, perhaps be arranged in transport pipe 110, perhaps (conveying belt that is endless belt conveyor 108 is exported in the below and transport pipe 110 at large particle diameter raw material place) all has setting in these two positions, to obtain better impurity-eliminating effect.
By above description as can be known, when the large particle diameter raw material that is doped with light weight sundries passes through the removal of impurities pawl 109 of knot screen, to be entrained in described light weight sundries by this knot screen remains, thereby realize separating of large particle diameter raw material and light weight sundries, realize removing the purpose of foreign material, thereby make the large particle diameter raw material that enters shredding unit 111 no longer be doped with various foreign material, overcome the defective that exists in the prior art.
After large particle diameter raw material is transported to shredding unit 111 through the second e Foerderanlage, carry out pulverization process by 111 pairs of large particle diameter raw materials of shredding unit.Shredding unit 111 can be for various shredding units commonly used, such as roller crusher, hammer mill, jaw crusher etc.Large particle diameter raw material described here can be multiple material, such as bulk, sheet or granular cassava, Ipomoea batatas, potato etc.
Below with reference to Fig. 6 to Figure 12 removal of impurities pawl 109 of the present invention is described.
To shown in Figure 12, removal of impurities pawl 109 comprises shaft-like base part 1 and is connected a plurality of toothed elements 2 with this base part 1 that these a plurality of toothed elements 2 are arranged along the radial direction of base part 1 such as Fig. 6.When being doped with large this removal of impurities pawl 109 of particle diameter raw material process of soft light weight sundries (such as woven bag or plastics bag residue), large particle diameter raw material fully contacts with the toothed elements 2 of removal of impurities pawl 109, thereby utilize toothed elements 2 that foreign material are remained, allow simultaneously large particle diameter raw material through this device.By this process, the foreign material in the large particle diameter raw material can be cleared out from large particle diameter raw material, thereby realize purpose of the present invention.
Base part 1 is mainly played a supporting role, so that toothed elements 2 is mounted on the base part 1.But base part 1 also can be brought into play the effect of combing, and at the foreign material of light weight sundries through out-of-date retained part.
For the ease of this base part 1 toothed elements 2 is set in the radial direction, this base part 1 is shaft-like, its cross-sectional shape can be rectangle, square or circular etc.But base part 1 also can be for the shape of any appropriate, such as tabular.
Base part 1 and toothed elements 2 can be made by various suitable materials, can select metal, such as steel, cast iron, stainless steel etc.; Can also select non-metallic material, such as plastics, pottery etc.Material about base part 1 and toothed elements 2 can be selected according to the kind of large particle diameter raw material.
To shown in Figure 9, a plurality of toothed elements 2 are positioned at same plane such as Fig. 6.According to this embodiment, toothed elements 2 all is arranged in same plane.Thereby this knot screen is the plane domain at described toothed elements 2 places with the large interactional zone of particle diameter raw material.
According to this embodiment, when the large particle diameter raw material that is doped with light weight sundries is regional through the combing of toothed elements 2, can be through the gap between the toothed elements 2, this toothed elements 2 plays combing effect simultaneously, the light weight sundries that mixes in the large particle diameter raw material is retained, this eliminating impurities is gone out.
For this kind embodiment, because in this device and the large interactional combing of particle diameter raw material zone is the plane, thereby less to the resistance of the large particle diameter raw material in this zone of flowing through, be convenient to the combing zone that large particle diameter raw material passes through described toothed elements 2 at a relatively high speed, can remove processing to the foreign material in the large particle diameter raw material simultaneously.
A preferred embodiment of the invention, to shown in Figure 8, the described a plurality of toothed elements 2 in parallel with each other radial direction from base part 1 along this base part 1 are extended such as Fig. 6.Because toothed elements 2 is parallel to each other, thereby the space between the adjacent toothed elements 2 is relatively large, is convenient to large particle diameter raw material and flows through with relatively high speed.
According to different embodiments, toothed elements 2 can be arranged on the base part 1 with different forms.As shown in Figure 6, in this embodiment, be provided with the same side that a plurality of parallel toothed elements 2 and this a plurality of toothed elements 2 are positioned at base part 1 on the base part 1, form the shape of similar comb.
In according to another preferred implementation shown in Figure 7, be distributed with respectively symmetrically a plurality of parallel toothed elements 2 at two opposite sides of base part 1.Thereby, to compare with embodiment shown in Figure 6, the zone of action of the toothed elements 2 in the embodiment shown in Figure 4 is larger, thereby has the ability of stronger removing foreign material.
According to another preferred implementation of the present invention, as shown in Figure 8, by the adjustment to the installation site of the toothed elements 2 in the embodiment shown in Figure 3, thereby the density degree of toothed elements 2 is adjusted, to adapt to the requirement of the different zones of action.
According to another preferred implementation of the present invention, as shown in Figure 9, at least a portion in described a plurality of toothed elements 2 is intersected mutually.In this embodiment, owing to not all be parallel to each other in a plurality of toothed elements 2, but some toothed elements 2 intersect mutually, thereby can play combing effect in the direction of the radial direction that favours base part 1, as much as possible the foreign material in the large particle diameter raw material are remained.For embodiment shown in Figure 9, the zone of action of toothed elements 2 thereby has the ability of larger removing foreign material greater than embodiment shown in Figure 3 in this embodiment.
According to of the present invention preferred embodiment a kind of, such as Figure 10 and shown in Figure 12, toothed elements 2 is divided into many groups along the axial direction due of base part 1, and this multiple sets of teeth shape spare 2 is spaced apart along the circumferential direction equal angles ground of described base part 1.
Different to embodiment shown in Figure 9 from Fig. 6, in Figure 10 and embodiment shown in Figure 12, a plurality of toothed elements are not to be positioned at same plane, but form around the three-dimensional arrangement of similar " mace " of base part 1, thereby the combing zone that can play combing effect is for three-dimensional.In other words, toothed elements is extended arrangement around base part 1 in the space around this base part 1.
When the large particle diameter raw material that is doped with light weight sundries passes through a plurality of toothed elements 2 of this solid, a plurality of toothed elements 2 can be carried out repeatedly scavenging(action) to large particle diameter raw material, this from the knot screen shown in Fig. 6 to Fig. 9 in to be positioned at conplane toothed elements 2 obviously different.Thereby the device of the embodiment shown in Figure 10 and Figure 12 has the ability of stronger removing foreign material.
In Figure 10 and embodiment shown in Figure 12, the grouping of a plurality of toothed elements 2 is divided according to the longitudinal direction (being axial direction due) of base part 1, can be divided into many groups (although Fig. 7 is expressed as 3 groups, be not limited to this, can be 2 groups, 3 groups, 5 groups, 6 groups etc.).And this multiple sets of teeth shape spare 2 is spaced apart with equal angles ground along the circumferential direction of described base part 1, thereby makes a plurality of toothed elements 2 be evenly distributed in the surrounding space of base part 1, forms three-dimensional combing zone.
According to a kind of preferred implementation, as shown in figure 10, a plurality of toothed elements 2 in the described multiple sets of teeth shape spare 2 in any a group are positioned at same plane.In situation shown in Figure 10, a plurality of toothed elements 2 are divided into respectively three groups along the axial direction due of base part 1, namely first group 21, second groups 22 and the 3rd groups 23.These three groups of toothed elements are spaced apart with equal angles ground along the circumferential direction of described base part 1, that is to say that the angle α between two groups of whenever adjacent toothed elements is 120 °, as shown in figure 11.And three toothed elements of first group 21 are parallel each other, are positioned at same plane.Second group 22 and the 3rd group 23 also is like this.
According to another preferred implementation of the present invention, as shown in figure 12, a plurality of toothed elements 2 in the multiple sets of teeth shape spare 2 in any a group are arranged twist along the axial direction due of base part 1.That is to say that the difference of this embodiment and Figure 10 and embodiment shown in Figure 11 is, for one group of toothed elements, a plurality of toothed elements in this group toothed elements but are arranged around the axial direction due of base part 1 not in same plane twist.
Specifically, in situation shown in Figure 12, base part 1 is preferably right cylinder, first group 21, second groups 22 of toothed elements with the 3rd group 23 in three toothed elements be arranged on the base part 1 according to three different spiral-linees respectively.Preferably, for the ease of this three groups of toothed elements 2 are set, the radius of spin of these three spiral-linees is the radius of base part 1, and axis is the cylinder axis of base part 1, and helical pitch is also identical, and rotation direction is also identical, separately starting point that different is.And each angle α that organizes between the toothed elements 21,22,23 equates namely 120 °.
But embodiments of the present invention are not limited to this, and the spiral-line of multiple sets of teeth shape spare 2 also can have the similar and different radius of spin, cylinder axis or helical pitch.
Although the toothed elements among Figure 10 and Figure 12 represents to have three group 21,22 and 23, but the present invention is not limited to this, according to different embodiments, also 2 groups, 4 groups, 5 groups or 6 groups of toothed elements can be set along the axial direction due of base part 1, then the angle α between the two adjacent groups toothed elements is 180 °, 90 °, 72 ° or 60 °.
Preferably, the end of described toothed elements 2 has hook-shape structure.When the foreign material of light soft are subject to time spent of doing of toothed elements 2, utilize this hook-shape structure more reliably and fully foreign material to be remained on the toothed elements 2.
A preferred embodiment of the invention, described knot screen also comprises at least one screen cloth, it is vertical with the longitudinal direction of this transport pipe 110 that described screen cloth is positioned at the plane at described transport pipe 110 and described screen cloth place.Thereby, when large particle diameter raw material is carried in transport pipe 110, can the eliminating impurities that mix in the large particle diameter raw material be fallen by described screen cloth.
Screen cloth also can arrange one, preferably be provided with a plurality of, thereby give full play to the effect of the removing foreign material of this screen cloth.Screen cloth can be arranged in the transport pipe 110 in every way, can be fixedly installed (such as modes such as welding, be clasped) at the internal surface of the sidewall of transport pipe 110 such as screen cloth.
But, in order to clear up in time the foreign material that are retained on the screen cloth, to keep the patency of transport pipe 110, preferably, such as Figure 13 and shown in Figure 14, be provided with at least one fluting 44 at the sidewall of transport pipe 110, at least one screen cloth inserts respectively in described at least one fluting 44.
Screen cloth inserts in the fluting 44 and enters in the transport pipe 110, thereby the foreign material of the transport pipe 110 of flowing through are carried out combing, with eliminating impurities.Preferably, the longitudinal direction of the plane at screen cloth place and transport pipe 110 is perpendicular, thereby can fully carry out combing to the large particle diameter raw material of process.
Screen cloth can have various ways in the support of fluting in 44, for example can protruding 45(be set as shown in figure 14 in that transport pipe 110 is interior), perhaps directly utilize transport pipe 110 to support at the wall at fluting 44 places.
In use, screen cloth is inserted (being about to screen cloth inserts in the fluting 44) in the transport pipe 110.In the time need to clearing up the foreign material on the screen cloth, can with screen cloth from 40 extractions of slotting, the foreign material on the screen cloth be cleaned out, and then screen cloth is inserted in the fluting 44, in order to use next time.
By above description as can be known, in the system of preparation slurry provided by the present invention, owing to be provided with above-mentioned riffler 106, thus the tiny foreign material (such as sand) that mix in the raw material can be removed; Owing in the delivery conduit of the second e Foerderanlage, be provided with knot screen, thereby light weight sundries (such as sheet, cotton-shaped woven bag residue etc.) can be removed, thereby enter in raw material in the pulping device 117 and the slurries and no longer be doped with various foreign material, thereby avoided being difficult in the legacy system remove the defective of foreign material.
Preferred implementation of the present invention has more than been described, but those of ordinary skills should be understood that, the system of preparation slurry provided by the present invention is not limited to this, under the prerequisite that does not break away from the claim limited range, each feature described above can be combined in the system of preparation slurry provided by the present invention alone or in combination in the mode of arbitrary combination.

Claims (21)

1. system for preparing slurry, this system comprises:
Feed device, this feed device are used for supplying raw material, and described raw material comprises small particle size raw material and large particle diameter raw material, is doped with tiny foreign material in the small particle size raw material, is doped with light weight sundries in the large particle diameter raw material;
Sorting equipment (102), this sorting equipment (102) are used for being classified as from the raw material of feed device small particle size raw material and large particle diameter raw material;
The first e Foerderanlage and riffler (106), this first e Foerderanlage connect described sorting equipment (102) and riffler (106), are used for the small particle size raw material is transported to described riffler (106);
The second e Foerderanlage, knot screen and shredding unit (111), described the second e Foerderanlage connects described sorting equipment (102) and shredding unit (111), be used for large particle diameter raw material is delivered to described shredding unit (111), described knot screen is arranged in the delivery conduit of described the second e Foerderanlage and processes to be used for that the described large particle diameter raw material of carrying along this delivery conduit is carried out removal of impurities;
The 3rd e Foerderanlage and pulping device (117), described the 3rd e Foerderanlage connects described shredding unit (111) and pulping device (117), large particle diameter raw material after being used for pulverizing is delivered to described pulping device (117), described pulping device (117) also is connected with described riffler (106), be used for receiving the slurries that are mixed with described small particle size raw material from riffler (106), wherein
Described riffler (106) comprises cell body (71), entrance (72) and outlet (73), the slurries of the small-particle mixture that described sorting equipment (102) is discharged or itself and water formation enter in the cell body (71) of described riffler (106) by the entrance (72) of described riffler (106), described cell body (71) comprises sidewall (74) and bottom (75), described outlet (73) is arranged on the described sidewall (74), and described bottom (75) have at least one bossing (76) and/or at least one sunk part (77);
Described knot screen be arranged in described large particle diameter raw material described delivery conduit must through the position, wherein: described the second e Foerderanlage comprises endless belt conveyor (108), described knot screen comprises removal of impurities pawl (109), and the conveying belt that this removal of impurities pawl (109) is positioned at described endless belt conveyor (108) is exported the below at described large particle diameter raw material place; Perhaps, described the second e Foerderanlage comprises endless belt conveyor (108) and transport pipe (110), this transport pipe (110) connects described endless belt conveyor (108) and shredding unit (111), described knot screen comprises removal of impurities pawl (109), described removal of impurities pawl (109) is arranged in the below that conveying belt that described transport pipe (110) and/or described removal of impurities pawl (109) be positioned at described endless belt conveyor (108) is exported described large particle diameter raw material place, described removal of impurities pawl (109) comprises shaft-like base part (1) and a plurality of toothed elements (2) that are connected with this base part (1), and this toothed elements (2) is arranged along the radial direction of described base part (1).
2. system according to claim 1, wherein, described entrance (72) is arranged on relative two described sidewalls (74) with described outlet (73).
3. system according to claim 2, wherein, described bottom (75) has a plurality of bossings (76) and/or a plurality of sunk part (77), and these a plurality of bossings (76) and/or a plurality of sunk part (77) edge direction from described entrance (72) to described outlet (73) is arranged.
4. according to claim 2 or 3 described systems, wherein, the longitudinal cross-section of described bossing (76) and/or a plurality of sunk part (77) is trilateral or trapezoidal, described longitudinal cross-section be parallel to from described entrance (72) to described outlet (73) direction and perpendicular to horizontal plane.
5. the described system of any one according to claim 1-3, wherein, described riffler (106) also comprises baffle plate, can regulate the size of described outlet (73) and the distance between described outlet (73) and described bottom (75) by this baffle plate.
6. system according to claim 1, wherein, described riffler (106) also comprises jet apparatus.
7. system according to claim 6, wherein, described jet apparatus comprises at least one spray tube (78), each spray tube (78) comprises separately body and is positioned at a plurality of holes on the body.
8. system according to claim 7, wherein, each described spray tube (78) is a plurality of, be arranged on separately in the cell body (71) of described riffler (106), and across relative two described sidewalls (74) of described riffler (106).
9. according to claim 7 or 8 described systems, wherein, the distance between the body of described spray tube (78) and described bottom (75) can be regulated.
10. system according to claim 7, wherein, described hole aim at described sunk part (77) and/or be arranged on described bossing (76) and the sidewall at described entrance (72) and/or outlet (73) place between in the groove that forms.
11. system according to claim 7, wherein, described hole is towards the bottom, and the axis in hole is horizontal by 30-60 degree angle.
12. system according to claim 1, wherein, described a plurality of toothed elements (2) are positioned at same plane.
13. system according to claim 12, wherein, a plurality of toothed elements (2) are parallel to each other.
14. system according to claim 12, wherein, at least a portion in described a plurality of toothed elements (2) is intersected mutually.
15. system according to claim 1, wherein, described toothed elements (2) is divided into many groups along the axial direction due of described base part (1), and this multiple sets of teeth shape spare (2) is spaced apart along the circumferential direction equal angles ground of described base part (1).
16. system according to claim 15, wherein, a plurality of toothed elements (2) in the described multiple sets of teeth shape spare (2) in any a group are positioned at same plane.
17. system according to claim 16, wherein, described toothed elements (2) is 2,3,4,5 or 6 groups, and the angle in the described multiple sets of teeth shape spare (2) between adjacent any two groups of toothed elements (2) is 180 °, 120 °, 90 °, 72 ° or 60 °.
18. system according to claim 15, wherein, a plurality of toothed elements (2) in the described multiple sets of teeth shape spare (2) in any a group are arranged twist along the axial direction due of described base part (1).
19. system according to claim 1, wherein, the end of described toothed elements (2) has hook-shape structure.
20. system according to claim 1, wherein, described knot screen also comprises at least one screen cloth, and it is vertical with the longitudinal direction of this transport pipe (110) that described screen cloth is positioned at the plane at described transport pipe (110) and described screen cloth place.
21. system according to claim 20, wherein, described removal of impurities pawl (109) is positioned at the position that described transport pipe (110) contacts with large particle diameter raw material first, and described screen cloth is positioned at the position that contacts with large particle diameter raw material behind the described transport pipe (110).
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