CN102049345B - Cassava grinding equipment - Google Patents

Abstract

The invention discloses cassava grinding equipment, which comprises a first conveying device, a particle grading device, a second conveying device, a grinding device, a third conveying device, a material collecting device and a sand sediment trap, wherein the particle grading device is used for grading cassava particles from the first conveying device and supplying small cassava particles obtained by grading and a small-particle mixture which comprises the small cassava particles and sand particles to the grinding device and the material collecting device through the second conveying device and the third conveying device respectively; the material collecting device is connected with the sand sediment trap; the sand sediment trap comprises a trap body, an inlet and an outlet; the small-particle mixture discharged by the material collecting device or serous fluid prepared from the small-particle mixture and water enters the trap body of the sand sediment trap through the inlet of the sand sediment trap; 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 projecting part and/or at least one sinking part. The grinding equipment can grind cassava into particles of required size, is provided with sand removing equipment with a simple structure and can realize continuous sand removing operation; moreover, an operation process is relatively open and is convenient to monitor.

Description

Cassava grinding equipment

Technical field

The present invention relates to a kind of cassava grinding equipment, more specifically, relate to a kind of disintegrating apparatus that can remove the grains of sand in the cassava particle.

Background technology

Because cassava is rich in starch, therefore be widely used in the fields such as fermentation ethanol processed, starch processed.Yet, usually the piece root of potato raw material is larger, can not be directly used in the fields such as fermentation ethanol processed, starch processed, thereby need to carry out pulverization process, with the institutional framework of destruction potato raw material, thereby make small starch granules can from large potato piece, disintegrate, separate.But the cassava piece carries the grains of sand usually, if use the cassava raw material with the grains of sand to carry out subsequent production (for example fermentation), can have a strong impact on production efficiency, and need the frequent cleans production equipment.In the prior art; for realizing removing sand purpose; generally include the eddy flow litter cleaning machine in the disintegrating apparatus to remove sand; particularly; the slurries that the cassava particle is mixed with the grains of sand are by the effect of centrifugal sedimentation, make that the grains of sand of greater density are thrown toward pool wall in the slurries, and get rid of from the bottom flushing of sediment mouth; the cassava particle that density is lighter is then stayed in the water, thereby realizes separating of cassava particle and the grains of sand.

In eddy flow removes sand, although can remove most of grains of sand, but need to get rid of to pool wall by the centrifugal force grains of sand that density is larger, by force with cassava particle and grains of sand layering, therefore, need to use a plurality of complex component such as eddy current type settling pit, the motor that produces centrifugal force and gearbox, so that the complex structure of eddy flow litter cleaning machine.For the centrifugal force that guarantees the process of removing sand and make slurries under certain pressure, flow into litter cleaning machine, the eddy flow litter cleaning machine is worked under sealing condition usually, thereby can not carry out the continuous work of removing sand, the situation of can not Real Time Monitoring removing sand, and the structure of eddy flow litter cleaning machine complexity has limited the amount of the slurries that every task can process greatly.

Summary of the invention

The objective of the invention is for shortcomings such as the complex structure that causes for removing sand in the cassava grinding equipment that solves prior art, working environment sealing, the processing of can not removing sand continuously, the invention provides a kind of simple in structure, the cassava grinding equipment that can under open environment, work continuously.

Cassava grinding equipment of the present invention comprises the first conveying device; particle grading device; the second conveying device; reducing mechanism; the 3rd conveying device; material-gathering device and riffler; described particle grading device is used for the cassava particle from the first conveying device is carried out classification; and with the cassava bulky grain that obtains after the classification with comprise that the granule mixture of cassava granule and the grains of sand is supplied to reducing mechanism and material-gathering device by the second conveying device and the 3rd conveying device respectively; material-gathering device connects described riffler; described riffler comprises cell body; entrance and exit; the slurries of the granule mixture that described material-gathering device is discharged or itself and water formation enter in the cell body of described riffler by the entrance of described riffler; 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.

Cassava grinding equipment of the present invention uses described riffler, thereby can utilize gravitational separation to remove sand, described bossing and/or sunk part can prevent that the grains of sand that deposit are subject to the impact of fluid and move freely, thereby the grains of sand are fixed on the bottom of riffler, realize the effect of from the cassava particle, removing the grains of sand.Can be by the continuously flowing into and flow out and continuously to the processing of removing sand of a large amount of slurries of fluid when using described riffler to remove sand, and described cassava grinding equipment is simple in structure, and not needing provides high pressure slurries and centrifugal force with complicated equipment.In addition, open working environment is convenient to monitor the situation of removing sand.

Description of drawings

Fig. 1 is the structural representation of cassava grinding equipment of the present invention;

Fig. 2 is a kind of cross sectional view of embodiment of the riffler of cassava grinding equipment of the present invention;

Fig. 3 is the cross sectional view of another kind of embodiment of the riffler of cassava grinding equipment of the present invention;

Fig. 4 is the schematic diagram of a kind of embodiment of playpipe.

The specific embodiment

As depicted in figs. 1 and 2; cassava grinding equipment of the present invention comprises the first conveying device 10; particle grading device 20; the second conveying device 30; reducing mechanism 40; the 3rd conveying device 50 and material-gathering device 60 and riffler 70; the cassava particle that 20 pairs of particle grading devices come from described the first conveying device 10 carries out classification; and with the cassava bulky grain that obtains after the classification with comprise that the granule mixture of cassava granule and the grains of sand supplies to reducing mechanism 40 and material-gathering device 60 feed by the second conveying device 30 and the 3rd conveying device 50 respectively; material-gathering device 60 connects riffler 70; this riffler 70 comprises cell body 71; entrance 72 and outlet 73; the slurries of the granule mixture that material-gathering device 60 is discharged or itself and water formation enter in the cell body 71 of riffler 70 by the entrance 72 of riffler 70; cell body 71 comprises sidewall 74 and bottom 75; outlet 73 is arranged on the sidewall 74, and bottom 75 has at least one bossing 76 and/or at least one sunk part 77.

In the cassava grinding equipment of the present invention, the first conveying device 10 is provided to particle grading device 20 with the cassava particle of various particle diameters and the mixture conveying of the grains of sand.The first conveying device 10 can be drag conveyor, described drag conveyor comprises transmission device, chute and sealing scraper chain, the mixture of cassava particle and the grains of sand is placed in the chute, under the drive of transmission device, the sealing scraper chain is around transmission device operation, is in the particle grading device 20 thereby the mixture that will be placed on cassava particle in the chute and the grains of sand is transported to following process equipment along the traffic direction of scraper chain.

Be transported to the cassava granule that cassava particles in the particle grading device 20 comprise the granularity that granularity is less than or equal to the grains of sand greater than cassava bulky grain and the granularity of the granularity of the grains of sand.Particle grading device 20 can make according to the size of particle cassava bulky grain and the cassava separate small that is transported to wherein; thereby will be transported to cassava particle in the particle grading device 20 and the mixture of the grains of sand and be divided into two parts; a part is the cassava bulky grain, and another part is the granule mixture that comprises cassava granule and the grains of sand.Particle grading device 20 can be various types of grading plants, is preferably vibration separation screen, thereby selects the different screen cloth in mesh aperture to obtain the different two parts cassava particle of particle diameter.Because the particle diameter of cassava piece is larger, the particle diameter of the grains of sand is less, can select the screen cloth of the mesh of diameter below 2mm, thereby so that the oarse-grained particle diameter of cassava greater than 2mm, the particle diameter of granule mixture is less than 2mm.Wherein, the cassava bulky grain is to be substantially free of the cassava piece of the grains of sand and to be provided to reducing mechanism 40 (shown in single arrow among Fig. 1) by the second conveying device 30; The granule mixture is the mixture of the less tapioca starch of the grains of sand and particle diameter and is provided to material-gathering device 60 and riffler 70 with the operation (shown in double-head arrow among Fig. 1) of removing sand by the 3rd conveying device 50.

The second conveying device 30 and the 3rd conveying device 50 can be can the conveying solid substance particle various devices.Preferably, the second conveying device 30 is conveyer belt conveying devices, is used for that particle grading device 20 is obtained the cassava bulky grain and is transported in the reducing mechanism 40 and pulverizes.

Reducing mechanism 40 can be for having the various reducing mechanisms of pulverizing the cassava function, and for example, reducing mechanism 40 can be to comprise that two opposed rollers are with by making roller rotate the broken kibbler roll that passes through the raw material between this in pressurization between the roller on one side on one side; Or comprise toe and screen cloth and by making described toe High Rotation Speed repeatedly hammer into shape broken until the mesh hammer mill of the screen cloth by the toe periphery to raw material; Or comprise V-shaped opening jaw and the vibration jaw jaw crusher; Or pin formula disintegrating machine and ball formula disintegrating machine.In one embodiment, reducing mechanism 40 is beater disintegrating machine, preferred model is the beater disintegrating machine of JFS-2000-72, this beater disintegrating machine comprises rotor, hammer leaf, sieve plate, driving arrangement and control appliance, in running, by control appliance control hammer leaf High Rotation Speed, hammer leaf and material are rubbed, thereby with crushing material to the particle size range that requires.It is the tapioca starch of 1.8-2.5 millimeter that the reducing mechanism 40 of cassava grinding equipment of the present invention preferably can provide particle diameter.

The 3rd conveying device 50 is preferably bucket elevator, and this bucket elevator can be for can be with material from the straight bucket elevator that is promoted to the various routines of higher position of lower position.For example described bucket elevator comprises drive sprocket, hopper and driven roller, hopper be installed on the drive sprocket and the linear direction of the material containing face of described hopper and drive sprocket motion vertical, drive sprocket is walked around driven roller and is joined end to end, and forms the closed circuit that transports material.The granule mixture that is obtained by particle grading device 20 supplies on the described hopper, and utilizes the continuous motion of drive sprocket to be transported in the material-gathering device 60.

Described material-gathering device 60 can be the various hoppers that hold material, also can be the conveying worm with agitating function.Material-gathering device 60 can directly provide the granule mixture to riffler 70, and make this granule mixture in riffler 70 with the stirring water flow that is provided by other device, remove sand realizing.But this mode is unfavorable for controlling granule mixture and the ratio that stirs water, makes the fluid mobility of formation inconsistent.Therefore, under the preferable case, material-gathering device 60 is the conveying worms with agitating function, thereby is convenient to the slurries that the granule mixture mixes with water are transported to riffler 70.Particularly, in material-gathering device 60, add entry with the described granule mixture of abundant stirring and make it form slurries 80, these slurries 80 can then flow in the riffler 70 and remove sand.Wherein, consumption and the mixing time of water is not particularly limited, if can obtain mobile better, slurries 80 that viscosity is moderate.The present inventor finds, be about when the quality of water cassava granule and the grains of sand material of the 3rd conveying device 50 (namely from) gross mass 20-100 doubly, when mixing time is 0.5-2h, can obtain the slurries 80 that flowability is better, viscosity is moderate, therefore, the preferred above-mentioned condition of the present invention.

Among the present invention, between the first conveying device 10 and the particle grading device 20, between particle grading device 20 and the second conveying device 30, between the second conveying device 30 and the reducing mechanism 40, between reducing mechanism 40 and the 3rd conveying device 50, between the 3rd conveying device 50 and the material-gathering device 60, and between material-gathering device 60 and the riffler 70, can connect or not connect by pipeline separately.For example, as described in Figure 1, the charging aperture of bucket elevator be positioned at particle grading device 20 the granule mixture discharging opening under, the discharging opening of bucket elevator be positioned at material-gathering device 60 charging apertures directly over.

Riffler 70 comprises cell body 71, entrance 72 and exports 73, material-gathering device 60 connects entrance 72 to provide slurries 80 to riffler 70, cell body 71 comprises sidewall 74 and bottom 75, described outlet 73 is arranged on the sidewall, wherein, bottom 75 has at least one bossing 76 and/or at least one sunk part 77.

As shown in Figure 1, in riffler 70, the slurries 80 of cassava granule (hereinafter referred is the cassava particle), the grains of sand and water have been mixed in flow process, because the density of the grains of sand precipitates more greatly and at first with respect to the density of cassava particle and water, grains of sand layers 82 are formed on the bottom 75 at riffler 70, and the density of cassava particle is light and be suspended in the water and with water flow.By the water that carries the cassava particle is flowed out so that the cassava particle separates with the grains of sand from exporting 73, realize removing sand.

Wherein said cell body 71 can be various shapes 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 the riffler 70, 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 2) 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 grains of sand layer 82 that deposits 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 (Fig. 2 and cross section shown in Figure 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 grains of sand layer 82 that effectively makes deposition is 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 downflow 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 70 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, for the movement of streamwise occurs under the impact that prevents the current that grains of sand layer 82 that grains of sand depositions forms flows above it, thereby accumulate on the sidewall at outlet 73 places, perhaps when overheap, overflow from exporting 73, as shown in Figures 2 and 3, the bottom 75 of the cell body 71 of riffler 70 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.

Grains of sand layer 82 is deposited on the bottom of cell body 71, and when grains of sand layer 82 is 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, grains of sand layer 82 can not move to the sidewall at outlet 73 places basically, thereby prevents that the grains of sand are stacked into outlet 73 and overflow from exporting 73.

As shown in Figure 2, in order to prevent that further grains of sand layer 82 is subject to the flow effect of the current of top, on cross section shown in Figure 2, i.e. 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 can help arbitrarily the shape that stops that grains of sand layer 82 streamwise move, such as waveform, triangle 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 70 also can have a sunk part 77 (as shown in Figure 3), perhaps has 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 the cassava particle swam on the water surface fully, this cassava particle can obtain collecting by flowing out outlet 73 basically, but also can be subject to the obstruction of the grains of sand and be deposited to grains of sand layer 82 with the grains of sand by some cassava particle.In addition, because the density of cassava particle is larger, the cassava particle also can sink in water.In this case, if flow velocity is inadequate, water flow is during to the sidewall at outlet 73 places, and some cassava particles may also be deposited to below, outlet 73 position, can not flow out from exporting 73, and and then deposit to the top layer of grains of sand layer 82, thereby cause waste.

For addressing this problem, preferably, riffler 70 comprises can jet-stream wind and/or the injection apparatus of current.This injection apparatus be arranged on grains of sand layer 82 the top and can be towards top layer jet-stream wind and/or the current of grains of sand layer 82, thereby the cassava particle Eddy diffusion that drives the top layer that deposits to grains of sand layer 82 and flows out outlet 73 with the water of grains of sand layer 82 top in water.In this process; injection apparatus can spray air-flow and/or the current of suitable intensity; so that the cassava particle in the top layer of grains of sand layer 82 floats to the position away from grains of sand layer 82; although this may make some grains of sand in the grains of sand layer 82 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, injection apparatus comprises at least one playpipe 78.Each playpipe 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 aspirator to make hole P jet-stream wind and/or current.

Each playpipe 78 can be set to across two of riffler 70 relative sidewalls, for example, can laterally be arrangeding in parallel along riffler 70, perhaps as shown in Figure 2 a kind of embodiment is like that along the parallel longitudinal setting of riffler 70, also can be along being predetermined angle and be arrangeding in parallel with horizontal and vertical.Certainly, playpipe 78 also can be arranged in a crossed manner.On each playpipe 78 a plurality of hole P can be set, according to the layout of playpipe 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 sand grains layer 82 of riffler 70 interior depositions may be different, are arranged on all the time the top of sand grains layer 82 for making playpipe 78, and preferably, the distance between the body of playpipe 78 and the bottom 75 can be regulated.For example, can playpipe 78 across two sidewalls at least one slideway is set, at least one end of playpipe 78 can be arranged in this slideway and along this slideway and slide, thereby can be along the vertical height direction adjusting playpipe 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 bottom 75 has sunk part 77 (comprise and depression that bottom 75 is integrally formed and two bossings 76 between the groove that forms), 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 playpipe 78 preferably is set to spray towards the top layer of grains of sand layer 82, 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 grains of sand layer 82 in a big way in drive the cassava particle, avoid simultaneously making the grains of sand also floating.Such as Fig. 2 and shown in Figure 4, playpipe 78 arranges along horizontal (filled arrows is depicted as flow direction among Fig. 4, and flow direction is vertical) of riffler 70, and hole P is set to favour downward 45 ° of horizontal direction (shown in Fig. 4 hollow core arrow) and sprays.

Playpipe 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 playpipe 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 playpipe 78 be set in the position away from outlet 73, in this case, playpipe 78 can provide air-flow and/or the current of larger intensity, 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 aspirator 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 flowing velocity 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 70 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 70, 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 70 with current, similarly, in closed when operation of removing sand, also can in riffler 70, injection apparatus be set, thereby avoid the cassava particle to be subject to the obstruction of the grains of sand and deposit to grains of sand layer 82, cause waste.

Disintegrating apparatus of the present invention, not only can make Cassava crushing is required particle size, and has sand eliminator simple in structure and can realize the continous way operation of removing sand, and operating process relatively open being convenient to monitor.

When described riffler 70 during for separating of cassava and the grains of sand, in the described slurries, the weight of water be preferably cassava and the grains of sand gross weight 20-100 doubly.The cell body of described riffler is cuboid, the vertical height of described riffler is preferably 0.8-0.9m, the bossing of described bottom and the height of sunk part are preferably 0.1-0.3m, and described bossing and sunk part preferably account for the 40-60% of described bottom area.Distance between the entrance of described riffler and the outlet place sidewall is preferably 5-7m, distance between described outlet and the bottom is preferably 0.4-0.85m, distance between described entrance and the bottom is preferably 0.3-0.5m, and described entrance penetrates into the top of described entrance place sidewall, thereby makes described slurries by the flow velocity natural flow of the drop between described entrance and the described outlet with 3-10m/s.The air-flow that described injection apparatus sprays or the flow velocity of current are preferably 2-4m/s.Use described riffler to carry out the repeated operation effect of can better being removed sand of removing sand, when using described riffler to separate cassava and the grains of sand, make slurries 80 riffler 70 interior repeat to flow can remove 95% the grains of sand 3-5 time.

Claims (15)

1. cassava grinding equipment; it is characterized in that; this equipment comprises the first conveying device (10); particle grading device (20); the second conveying device (30); reducing mechanism (40); the 3rd conveying device (50); material-gathering device (60) and riffler (70); described particle grading device (20) is used for the cassava particle from the first conveying device (10) is carried out classification; and with the cassava bulky grain that obtains after the classification with comprise that the granule mixture of cassava granule and the grains of sand is supplied to reducing mechanism (40) and material-gathering device (60) by the second conveying device (30) and the 3rd conveying device (50) respectively; material-gathering device (60) connects described riffler (70); described riffler (70) comprises cell body (71); entrance (72) and outlet (73); the slurries of the granule mixture that described material-gathering device (60) is discharged or itself and water formation enter in the cell body (71) of described riffler (70) by the entrance (72) of described riffler (70); 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).

2. cassava grinding equipment according to claim 1, wherein, described entrance (72) is arranged on relative two described sidewalls (74) with described outlet (73).

3. cassava grinding equipment 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 cassava grinding equipments, wherein, the longitudinal cross-section of described bossing (76) and/or sunk part (77) is triangle 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 cassava grinding equipment of any one according to claim 1-3, wherein, described riffler (70) 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. cassava grinding equipment according to claim 1, wherein, described riffler (70) also comprises injection apparatus.

7. cassava grinding equipment according to claim 6, wherein, described injection apparatus comprises at least one playpipe (78), each playpipe (78) comprises separately body and is positioned at a plurality of holes on the body.

8. cassava grinding equipment according to claim 7, wherein, described playpipe (78) is a plurality of, be arranged on separately in the cell body (71) of described riffler (70), and across relative two described sidewalls (74) of described riffler (70).

9. according to claim 7 or 8 described cassava grinding equipments, wherein, the distance between the body of described playpipe (78) and described bottom (75) can be regulated.

10. cassava grinding equipment 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. cassava grinding equipment according to claim 7, wherein, described hole is towards the bottom, and the axis in hole is horizontal by 30-60 degree angle.

12. cassava grinding equipment according to claim 1, wherein, described particle grading device (20) is classifying screen, and the mesh diameter of the screen cloth of described classifying screen is 2mm.

13. cassava grinding equipment according to claim 1, wherein, described the first conveying device is drag conveyor, and described the second conveying device (30) is belt conveyor, and described the 3rd conveying device (50) is bucket elevator.

14. according to claim 1 or 12 described cassava grinding equipments, wherein, it is the particle of 1.8-2.5mm that described reducing mechanism (40) can provide particle diameter.

15. cassava grinding equipment according to claim 1, wherein, described material-gathering device (60) is for having the conveying worm of agitating function.

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