CN102430520A - Micron-level powder material sieving equipment and sieving method - Google Patents
Micron-level powder material sieving equipment and sieving method Download PDFInfo
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- CN102430520A CN102430520A CN2011103630856A CN201110363085A CN102430520A CN 102430520 A CN102430520 A CN 102430520A CN 2011103630856 A CN2011103630856 A CN 2011103630856A CN 201110363085 A CN201110363085 A CN 201110363085A CN 102430520 A CN102430520 A CN 102430520A
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- 239000000463 material Substances 0.000 title claims abstract description 107
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Abstract
The invention relates to the technical field of sieving equipment, in particular to micron-level powder material sieving equipment and a sieving method thereof. The micron-level powder material sieving equipment comprises an air supply device, a material collecting device and an airflow pipeline arranged between the air supply device and the material collecting device; the air supply device is connected with a feeding device; the position of the airflow pipeline near the material collecting device is provided with a sieve screen slot; the sieve screen inserting slot is arranged obliquely; the inclined angle is 20-80 degrees; the sieve screen inserting slot is provided with a sieve screen inserting plate which is matched with the sieve screen inserting slot; a sieve screen is detachably paved on the sieve screen inserting plate; and the position of the airflow pipeline near the lower end of the sieve screen inserting slot is provided with a coarse material outlet. According to the invention, the airflow and powder materials are mixed uniformly, and the powder materials are fully atomized; moreover, the micron-level powder material sieving equipment has the characteristics of simplified technique, low production cost, high sieving efficiency, good sieving effect, high efficiency, energy saving, and convenience for widespread popularization and application.
Description
Technical field
The present invention relates to the screening plant technical field, particularly a kind of micron order powder grain material screening plant and method for sieving.
Background technology
Screening machine (screening machine) is called sieving machine again, utilizes the relative motion of bulk granular material and compass screen surface, makes the part particle see through sieve aperture, materials such as sand, gravel, rubble is divided into the vibration screening machinery equipment of different stage by granular size.
At present the powder separation equipment adopts vibrating screen classifier more, and this screening machine is to rely on the reciprocating or vibration of compass screen surface that the solid particle on the screen cloth is spilt from screen cloth in the screening solid particle material; And will discharge from the coarse fodder outlet greater than the particle of mesh size; Because adopt specific power-equipments such as vibrating motor, equipment volume is huge, complex structure; Power consumption is big, and production cost is high.In addition, utilize the vibration of screen cloth to sieve the powder of micron order particle diameter, can be because of the influence of factors such as moisture, material viscosity, static in the material, cause that screening efficiency is lower, separating effect is relatively poor.General oscillatory type sieving machine is difficult to separate micron-sized powder grain material.
To the deficiency of prior art, Chinese patent number is 200710055045.9 patent, and a kind of air-flow sieve powder technology is provided; It comprises blower fan, feeding machine, screening machine, cyclone separator, and the top and the bottom of the air inlet pipe of screening machine top are arc, are provided with the arc coarse strainer in the arc air inlet pipe; The bottom of the arc air inlet pipe of arc coarse strainer left end is provided with out the impurity pipe; What go out the impurity pipe side walls hingedly has a baffle plate, and the outer end of baffle plate is provided with weight, and this air flow powder sieving machine is for the screening of powder; Its screening efficiency, unit-hour output, screening fineness etc. all are superior to the vibrosieve technology, thereby have obtained using widely.Yet this air flow powder sieving machine exposes following problem in long-term the use: 1) be to use cyclone separator baffle plate and weight, this device structure is complicated, and equipment cost is high; Maintenance cost is high, and bulky, floor space is big; Both be not easy to safeguard, and also be unfavorable for generally applying; 2) special screening machine is arranged, the screening machine complex structure, equipment cost is high, and maintenance inconvenience and energy consumption are big; 3) be that screening machine top is provided with the arc air inlet pipe, between the air inlet of blower fan and screening machine, be provided with airflow line, the airflow line complex structure between the gas outlet of screening machine and the cyclone separator; And duct length is bigger, has weakened the air-supply efficient of blower fan, and it is inhomogeneous to cause powder and air to mix; When the powder of spout for a long time, the powder atomizing is insufficient, even powder becomes block; Separative efficiency is low, and more serious is that block powder breaks up screen cloth, and equipment cost is high; 4) be that the interior screen cloth of screening machine vertically is provided with, particle diameter is a bit larger tham the special easy blocking mesh of powder of mesh aperture, and the powder that particle diameter is bigger is deposited in the lower end of the feeding mouth of screen cloth easily, further stops up screen cloth bottom mesh, and screening efficiency is low, and screening effect is poor.
Summary of the invention
The objective of the invention is to provide a kind of simple in structure, easy to maintenance, production cost is low, screening efficiency is high, screening effect is good and energy-efficient micron order powder grain material screening plant to the deficiency of prior art.
Another object of the present invention is to provide a kind of method for sieving of simple in structure, production cost is low, screening efficiency is high, screening effect is good and energy-efficient micron order powder grain material screening plant to the deficiency of prior art; Work simplification is convenient to generally apply.
For realizing above-mentioned purpose, the present invention adopts following technical scheme.
A kind of micron order powder grain material screening plant is provided; Comprise air-supply arrangement, material-gathering device and be arranged at said air-supply arrangement and said material-gathering device between airflow line; Said air-supply arrangement is connected with feeding device, and the position of said airflow line neighbor set materials device is provided with the screen cloth slot, and said screen cloth slot is obliquely installed; The angle of inclination is 20～80 degree; Be inserted with the screen cloth plate that cooperates installation with the screen cloth slot in the said screen cloth slot, said screen cloth plate removably is equipped with screen cloth, and the position of the lower end of the contiguous said screen cloth slot of said airflow line offers the coarse fodder outlet.
Wherein, Be connected with the sieve nest of hollow between the tail end of said airflow line and the said material-gathering device, said screen cloth slot is arranged at said sieve nest, and the two ends of said sieve nest are communicated with said airflow line respectively; The cross-sectional area of said sieve nest is greater than the cross-sectional area of said airflow line; Said screen cloth plate offers the screen cloth through hole, said screen cloth through hole ovalize, circle or square, and the area of said screen cloth through hole is greater than the cross-sectional area of said airflow line.
The order number of said screen cloth is 30～300 orders.
Wherein, said material-gathering device comprises the chamber that gathers materials that is communicated with airflow line, the fines outlet that is arranged at the dust-removal cloth-bag of the said top, chamber that gathers materials and is arranged at the said bottom, chamber that gathers materials, and said fines outlet is provided with relevant wind discharger.
Wherein, said feeding device comprises the material bin that is connected with said air-supply arrangement, and the bottom of said material bin is provided with the discharging adjustable plate.
Wherein, Said feeding device comprises the pulverizer that is connected with said air-supply arrangement; Said pulverizer all is connected with a motor-driven through a machine shaft with said air-supply arrangement, and said pulverizer is connected with material bin, and the bottom of said material bin is provided with the discharging adjustable plate.
Wherein, said airflow line is linear airflow line, and the height of the link of said airflow line and said material-gathering device is not less than the height of the link of said airflow line and said air-supply arrangement.
Wherein, Be provided with the second screen cloth slot that laterally arranges with said screen cloth slot between said screen cloth slot and the said material-gathering device; Be inserted with the second screen cloth plate that cooperates installation with the second screen cloth slot in the said second screen cloth slot; The said second screen cloth plate removably is equipped with second screen cloth, and the order number of said second screen cloth is not less than the order number of said screen cloth, and the position of the lower end of the contiguous said second screen cloth slot of said airflow line offers the outlet of second coarse fodder.
The present invention is for realizing that above-mentioned another purpose adopts following technical scheme.
A kind of method for sieving of micron order powder grain material screening plant is provided, comprises following processing step:
A, according to the type of raw materials of required screening and screening specification requirement, select the suitable screen cloth of order number;
B, screen cloth is layed in the screen cloth plate, then the screen cloth plate is inserted in the screen cloth slot, make screen cloth 20～80 degree that tilt be inserted in airflow line;
C, the pan feeding speed of regulating feeding device and the air output of air-supply arrangement, the powder to be sieved after feeding device will be pulverized is sent into air-supply arrangement, and powder to be sieved and air-flow are blowed through screen cloth with the mixed of 20～30%:70～80%;
D, particle diameter fall into material-gathering device less than the fines of the mesh aperture of screen cloth and carry out store collected; Particle diameter falls from the coarse fodder outlet greater than the coarse fodder of the mesh aperture of screen cloth; Coarse fodder is thrown in to feeding device again; The air-flow of air-supply arrangement blows coarse fodder through screen cloth once more and carries out regrading, and so the powder screening is promptly accomplished in circulation.
Wherein, Also comprise step B1 between said step B and the step C, select second screen cloth of order number greater than said screen cloth; Second screen cloth is layed in the second screen cloth plate, then the second screen cloth plate is inserted in the second screen cloth slot, make second screen cloth inclination, 20～80 degree be inserted in airflow line;
Said step D also includes step D1 afterwards, particle diameter falls from the outlet of second coarse fodder greater than the secondary coarse material of the mesh aperture of second screen cloth; Secondary coarse material is thrown in to feeding device again; The air-flow of air-supply arrangement blows secondary coarse material through the screen cloth and second screen cloth once more and carries out regrading, and so the powder screening is promptly accomplished in circulation.
Beneficial effect of the present invention is:
Micron order powder grain material screening plant of the present invention; Comprise air-supply arrangement, material-gathering device and be arranged at air-supply arrangement and material-gathering device between airflow line; Air-supply arrangement is connected with feeding device, and the position of airflow line neighbor set materials device is provided with the screen cloth slot, and the screen cloth slot is obliquely installed; The angle of inclination is 20～80 degree; Be inserted with the screen cloth plate that cooperates installation with the screen cloth slot in the screen cloth slot, the screen cloth plate removably is equipped with screen cloth, and the position of the lower end of the contiguous screen cloth slot of airflow line offers the coarse fodder outlet; Have simple in structure, production cost is low, easy to maintenance, screening efficiency is high, screening effect good and energy-efficient characteristics.
The method for sieving of micron order powder grain material screening plant of the present invention comprises following processing step: A, according to the type of raw materials of required screening and screening specification requirement, selects the suitable screen cloth of order number; B, screen cloth is layed in the screen cloth plate, then the screen cloth plate is inserted in the screen cloth slot, make screen cloth 20～80 degree that tilt be inserted in airflow line; C, the pan feeding speed of regulating feeding device and the air output of air-supply arrangement, the powder to be sieved after feeding device will be pulverized is sent into air-supply arrangement, and powder to be sieved and air-flow are blowed through screen cloth with the mixed of 20～30%:70～80%; D, particle diameter fall into material-gathering device less than the fines of the mesh aperture of screen cloth and carry out store collected; Particle diameter falls from the coarse fodder outlet greater than the coarse fodder of the mesh aperture of screen cloth; Coarse fodder is thrown in to feeding device again; The air-flow of air-supply arrangement blows coarse fodder through screen cloth once more and carries out regrading, and so the powder screening is promptly accomplished in circulation; Air-flow of the present invention and powder mix, and powder fully atomizes, and have that work simplification, equipment and production cost are low, easy to maintenance, screening efficiency is high, screening effect good and energy-efficient characteristics, are convenient to generally apply.
Description of drawings
Utilize accompanying drawing that the present invention is described further, but the embodiment in the accompanying drawing does not constitute any restriction of the present invention.
Fig. 1 is the structural representation of micron order powder grain material screening plant of the present invention.
Fig. 2 is the structural representation at first visual angle of micron order powder grain material screening plant of the present invention.
Fig. 3 is the structural representation at second visual angle of micron order powder grain material screening plant of the present invention.
Fig. 4 is the structural representation at the 3rd visual angle of micron order powder grain material screening plant of the present invention.
Fig. 5 is the structural representation of the screen cloth plate of micron order powder grain material screening plant of the present invention.
In Fig. 1 to Fig. 5, include:
1---air-supply arrangement 2---material-gathering device 21---gathers materials the chamber
22---close wind discharger 3---airflow line 4---feeding device
41---material bin 42---pulverizer 43---motors
5---screen cloth slot 6---screen cloth plate 61---screen cloth through holes
62---coarse fodder outlets that hush panel 63---is crossed sieve plate 7---
8---sieve nest 9---dust-removal cloth-bag.
The specific embodiment
Below in conjunction with embodiment the present invention is further described.
embodiment one.
Extremely shown in Figure 5 like Fig. 1; The micron order powder grain material screening plant of present embodiment comprises air-supply arrangement 1, material-gathering device 2 and is arranged at the airflow line 3 between said air-supply arrangement 1 and the said material-gathering device 2 that said air-supply arrangement 1 is connected with feeding device 4; The position of said airflow line neighbor set materials device 2 is provided with screen cloth slot 5; Said screen cloth slot 5 is obliquely installed, and the angle of inclination is 20～80 degree, is inserted with the screen cloth plate 6 that cooperates installation with screen cloth slot 5 in the said screen cloth slot 5; Said screen cloth plate 6 removably is equipped with screen cloth, and the position of the lower end of said airflow line 3 contiguous said screen cloth slots 5 offers coarse fodder outlet 7.
During use, start air-supply arrangement 1, the airflow that powder grain material to be sieved is produced by air-supply arrangement 1 through air-supply arrangement 1 back is blown and is sprayed onto screen cloth; The fines that particle diameter is not more than the screen cloth mesh aperture stores through screen cloth entering material-gathering device 2 smoothly; And particle diameter is failed through screen cloth greater than the coarse fodder of screen cloth mesh aperture, under the thrust of self gravitation and air-flow, falls from coarse fodder outlet 7, when needs are got material; Open material-gathering device 2, can conveniently take out the fines that particle diameter meets processing request.The present invention is simple in structure, and part of appliance is few, and production cost is low, and separative efficiency is high, and is energy-efficient, practical, is widely used in the screening of dried materials such as beans, potato class, chaff, fiber.
The invention has the advantages that: 1) the present invention is simple in structure; Need not use equipment such as sieving machine; Only need can realize the sieve classification of micron order powder grain material by the air-supply of air-supply arrangement, equipment cost and maintenance cost are low and easy to maintenance, work simplification; Energy-efficient, help generally applying.
2) equipment volume is little, and floor space is little, need not to use special power-equipments such as shaking device, and energy consumption is little; Can realize the screening of micron order powder grain material by the aftershock of air-supply of the air-flow of air-supply arrangement 1 and air-supply arrangement 1, screening effect is good, and energy consumption is little, and the conservation of power resource reduces cost.
3) airflow line 3 is simple in structure, and the length of airflow line 3 is less, is convenient to air-flow and drives the mobile screen cloth that directly passes through of powder; Avoid that airflow line 3 length are big, the bending place is many and weaken the air supply velocity of air-supply arrangement 1, guarantees that powder and air fully mix, powder is fully atomized; Avoid forming block powder; Prevent that effectively powder from breaking up screen cloth, screening efficiency is high, and equipment cost is low and easy to maintenance.
4) screen cloth is obliquely installed in airflow line 3 with 20～80 degree, and is of Fig. 3, and the α angle can be 20～80 degree.Powder is by being blowed in the process because the deadweight effect, coarse fodder because of the weight larger part in the air-flow bottom, fines is because of the air-flow top that is in light weight, the screen cloth setting of inclination can utilize the effect of powder deadweight to improve separative efficiency, improves separating effect.The powder of avoiding particle diameter to be a bit larger tham the mesh aperture of screen cloth stops up the mesh of screen cloth, under the effect of powder deadweight and air-flow, guarantees that powder can repeatedly be blowed to screen cloth by air-flow, and screening effect is good, prolongs the service life of screen cloth.In addition, can go out like separation such as sand grains, thereby improve the security of sieving the material that obtains, satisfy the processing request of food service industry differing bigger impurity with target product proportion.
5) coarse fodder outlet 7 is arranged at the position of the lower end of airflow line 3 contiguous screen clothes; Utilize the effect of powder deadweight; Coarse fodder is fallen from coarse fodder outlet 7 automatically, prevent that the coarse fodder of failing to sieve from stopping up screen cloth bottom mesh, thereby cause the low or mechanical disorder of production efficiency; Screening effect is good, and is simple to operate.
The present invention is mainly used in dry material such as the food service industry of separating beans, chaff and fiber, utilizes air-flow to blow the spray material, effectively improves the material translational speed, can separate the small particle diameter material well, and the more little screening effect of material particular diameter is good more, and screening efficiency is high.
As shown in Figure 4; The coarse fodder outlet 7 of present embodiment is provided with dust-removal cloth-bag 9; The aperture of said dust-removal cloth-bag 9 is less than the mesh aperture of said screen cloth, guarantees that the coarse fodder of failing to sieve can well collect and be played back to again in the material bin 41 to make things convenient for regrading, improves utilization ratio of raw materials; Improve yield of product, economic benefit is high.In addition, dust-removal cloth-bag 9 is avoided fines to spill into polluting production environment in the air, and avoids the loss of fines.Certainly coarse fodder outlet 7 also can be provided with coarse fodders such as polybag, Plastic Drum, canister and collect utensil.
The order number of the screen cloth of present embodiment is 30～300 orders.As one preferred embodiment, the order number of the screen cloth of present embodiment is 80～300 orders, in production application; The producer can select the suitable screen cloth of order number according to process requirements; Thereby reach the purpose of the powder grain material of isolating different-grain diameter, convenient and practical, economic benefit is good.
The material-gathering device 2 of present embodiment comprises the chamber 21 that gathers materials that is communicated with airflow line 3, the fines outlet that is arranged at the dust-removal cloth-bag 9 of said 21 tops, chamber that gather materials and is arranged at said 21 bottoms, chamber that gather materials, and said fines outlet is provided with relevant wind discharger 22.
Particularly, close wind discharger 22 and comprise housing, be arranged at the air valve in the housing, said air valve is connected with drive motors.Fines gets into 21 backs, chamber that gather materials to evenly spreading out all around, and fines sinks down into the fines outlet under the deadweight effect, and the part fines is rotated the air-flow of rising and rolls; Air communication is crossed dust-removal cloth-bag and is emitted in the atmosphere, and fines remains in the dust-removal cloth-bag, sinks down into the blade interval of the air valve of 21 bottoms, chamber that gather materials at last in the deadweight effect; Drive motors drives the air valve rotation; Fines falls to collecting through the fines outlet, and the setting of air valve guarantees that fines can fall reposefully, avoids air-flow to run out of; Thereby avoid causing dust from flying, help fines is in time packed transportation.The aperture of the dust-removal cloth-bag 9 of present embodiment is less than the mesh aperture of said screen cloth, and 9 of dust-removal cloth-bags allow gas to pass through, and fines can not pass through, and avoids fines to spill into contaminated environment and waste raw material in the air, and is practical.
As shown in Figure 2, the feeding device 4 of present embodiment comprises the material bin 41 that is connected with said air-supply arrangement 1, and the bottom of said material bin 41 is provided with the discharging adjustable plate.The powder that crushes is fed in the hopper 41, regulate the openings of sizes of discharging adjustable plate, thereby convenient feeding and pan feeding speed of regulating powder guarantees that the powder and the air-flow that get into air-supply arrangement 1 fully mix that screening effect is good.
A kind of method for sieving of micron order powder grain material screening plant comprises following processing step:
A, according to the type of raw materials of required screening and screening specification requirement, selecting the order number is 30 screen cloth;
B, screen cloth is layed in screen cloth plate 6, then screen cloth plate 6 is inserted in screen cloth slot 5, make screen cloth 20 degree that tilt be inserted in airflow line 3;
The air output of C, the pan feeding speed of regulating feeding device 4 and adjusting air-supply arrangement 1, the powder to be sieved after feeding device 4 will be pulverized is sent into air-supply arrangement 1, and powder to be sieved and air-flow are blowed through screen cloth with the mixed of 20%:80%;
D, particle diameter fall into material-gathering device 2 less than the fines of the mesh aperture of screen cloth and carry out store collected; Particle diameter falls from coarse fodder outlet 7 greater than the coarse fodder of the mesh aperture of screen cloth; Coarse fodder is thrown in to feeding device 4 again; The air-flow of air-supply arrangement 1 blows coarse fodder through screen cloth once more and carries out regrading, and so the powder screening is promptly accomplished in circulation.
Air-flow of the present invention and powder mix, and powder fully atomizes, and have that work simplification, equipment and production cost are low, easy to maintenance, screening efficiency is high, screening effect good and energy-efficient characteristics, are convenient to generally apply.
embodiment two.
As shown in Figure 1; The difference of present embodiment and embodiment one is; The feeding device 4 of present embodiment comprises the pulverizer 42 that is connected with said air-supply arrangement 1; Said pulverizer 42 all drives with a motor 43 through a machine shaft with said air-supply arrangement 1 and is connected, and said pulverizer 42 is connected with material bin 41, and the bottom of said material bin 41 is provided with the discharging adjustable plate.
The air-supply arrangement 1 of present embodiment is connected with pulverizer 42, and pulverizer 42 is arranged at the front of the air outlet of air-supply arrangement 1, raw material is thrown in get in the hopper 41; Utilize the discharging adjustable plate to control raw-material pan feeding speed and feeding; Pulverizer 42 is ground into micron-sized powder grain material with raw material, the powder grain material after air-supply arrangement 1 will be pulverized blows and is sprayed onto screen cloth and sieves, the loss of avoided repeatedly pan feeding, getting powder in the material process; Simplify the production and processing operation; Save human cost, production efficiency is high, and economic benefit is high.In addition; Because volume of the present invention is little, utilizes the aftershock of pulverizer 42 and air-supply arrangement 1 can cause screen cloth in the airflow line 3, thereby improve the efficient that screen cloth sieves material with respect to the effect of air-flow with the shake of mixing of materials deposits yields; Energy consumption is little, the conservation of power cost.
The air-supply arrangement 1 of present embodiment comprises pressure fan or the air blast that is driven by motor 43.Pressure fan or air blast are prior art ripe in the mechanical field, and its operation principle repeats no more at this.
The remainder of present embodiment is identical with embodiment one, repeats no more here.
A kind of method for sieving of micron order powder grain material screening plant comprises following processing step:
A, according to the type of raw materials of required screening and screening specification requirement, selecting the order number is 80 screen cloth;
B, screen cloth is layed in screen cloth plate 6, then screen cloth plate 6 is inserted in screen cloth slot 5, make screen cloth 30 degree that tilt be inserted in airflow line 3;
The air output of C, the pan feeding speed of regulating feeding device 4 and adjusting air-supply arrangement 1, the powder to be sieved after feeding device 4 will be pulverized is sent into air-supply arrangement 1, and powder to be sieved and air-flow are blowed through screen cloth with the mixed of 22%:78%;
D, particle diameter fall into material-gathering device 2 less than the fines of the mesh aperture of screen cloth and carry out store collected; Particle diameter falls from coarse fodder outlet 7 greater than the coarse fodder of the mesh aperture of screen cloth; Coarse fodder is thrown in to feeding device 4 again; The air-flow of air-supply arrangement 1 blows coarse fodder through screen cloth once more and carries out regrading, and so the powder screening is promptly accomplished in circulation.
Air-flow of the present invention and powder mix, and powder fully atomizes, and have that work simplification, equipment and production cost are low, easy to maintenance, screening efficiency is high, screening effect good and energy-efficient characteristics, are convenient to generally apply.
embodiment three.
As shown in Figure 1; The difference of present embodiment and embodiment one is; Be connected with the sieve nest 8 of hollow between the tail end of the airflow line 3 of present embodiment and the said material-gathering device 2; Said screen cloth slot 5 is arranged at said sieve nest 8, and the two ends of said sieve nest 8 are communicated with said airflow line 3 respectively, and the cross-sectional area of said sieve nest 8 is greater than the cross-sectional area of said airflow line 3.
Particularly, smaller cylindric in the two ends that said sieve nest 8 is hollow, said sieve nest 8 laterally arranges with said airflow line 3, and the internal diameter of said sieve nest 8 is greater than the internal diameter of said airflow line 3, and said screen cloth slot 5 is welded in said sieve nest 8.Sieve nest 8 two ends are smaller, guarantee sieve nest 8 and 3 stable connections of airflow line, and air-tightness is good, can effectively prevent the leakage of gas and powder, improves product yield.The internal diameter of sieve nest 8 is greater than the internal diameter of said airflow line 3, and the amount of the mixture of the air-flow that flows through screen cloth in the unit interval and powder is improved greatly, guarantees that powder fully sieves, and avoids powder to stop up sieve aperture, and discharging is more smooth and easy sooner, improves screening efficiency.
The sieve nest 8 of present embodiment can be cylinder, side's tube or other tubulars, the sieve nest 8 shape preferably drum shapes in the present embodiment, particularly; The diameter of sieve nest 8 is about 18cm, and the length of sieve nest 8 is about 50cm, and sieve nest 8 volumes are light and handy; It is little to take up room; Simple in structure, the cost of cost and maintenance is low, is convenient to generally apply.
As shown in Figure 5, the screen cloth plate 6 of present embodiment offers screen cloth through hole 61, said screen cloth through hole 61 ovalizes, circle or square, and the area of said screen cloth through hole 61 is greater than the cross-sectional area of said airflow line 3.Particularly, said screen cloth plate 6 comprises hush panel 62 and the sieve plate 63 excessively that is connected with hush panel 62, and said screen cloth through hole 61 is arranged at the said middle part of crossing sieve plate 63.As one preferred embodiment, screen cloth through hole 61 ovalizes of present embodiment, the angle that the shape of said screen cloth through hole 61 tilts according to the shape of said sieve nest 8 and said screen cloth plate 6 and difference.Because screen cloth is layed in screen cloth plate 6, said screen cloth plate 6 detachably is installed in the sieve nest 8, and the screen cloth of different size is changed in convenient requirement according to actual production processing, to reach the effect of accurate screening.The present invention can use 80-1000 purpose screen cloth, and in the present embodiment, selecting the order number is that 500 purpose screen clothes carry out the screening of micron order powder grain material.
The remainder of present embodiment is identical with embodiment one, repeats no more here.
A kind of method for sieving of micron order powder grain material screening plant comprises following processing step:
A, according to the type of raw materials of required screening and screening specification requirement, selecting the order number is 160 screen cloth;
B, screen cloth is layed in screen cloth plate 6, then screen cloth plate 6 is inserted in screen cloth slot 5, make screen cloth 40 degree that tilt be inserted in airflow line 3;
The air output of C, the pan feeding speed of regulating feeding device 4 and adjusting air-supply arrangement 1, the powder to be sieved after feeding device 4 will be pulverized is sent into air-supply arrangement 1, and powder to be sieved and air-flow are blowed through screen cloth with the mixed of 25%:75%;
D, particle diameter fall into material-gathering device 2 less than the fines of the mesh aperture of screen cloth and carry out store collected; Particle diameter falls from coarse fodder outlet 7 greater than the coarse fodder of the mesh aperture of screen cloth; Coarse fodder is thrown in to feeding device 4 again; The air-flow of air-supply arrangement 1 blows coarse fodder through screen cloth once more and carries out regrading, and so the powder screening is promptly accomplished in circulation.
Air-flow of the present invention and powder mix, and powder fully atomizes, and have that work simplification, equipment and production cost are low, easy to maintenance, screening efficiency is high, screening effect good and energy-efficient characteristics, are convenient to generally apply.
embodiment four.
The difference of present embodiment and embodiment one is; The airflow line 3 of present embodiment is linear airflow line 3, and the height of the link of said airflow line 3 and said material-gathering device 2 is not less than the height of the link of said airflow line 3 and said air-supply arrangement 1.
Because have bigger particle and impurity unavoidably among the powder grain material to be sieved, like sand, stone etc., they all can not pass through screen cloth, can be tackled by screen cloth.When the airflow line 3 and the height of the link of air-supply arrangement 1 were higher, big particle and the impurity tackled will be piled up on screen cloth, gently then stop up screen cloth; Production efficiency is low, and is heavy then damage screen cloth, must shut down and change screen cloth; Shorten the service life of screen cloth; Production cost is high, and man-hour is produced in waste, and economic benefit is low.Present embodiment is guaranteed to tackle the particle and the impurity that get off and can in time be fallen from coarse fodder outlet 7, and can on screen cloth, not pile up, and prevents the obstruction of screen cloth or damages the service life of prolongation screen cloth.In addition, linearly type design of airflow line 3, then airflow line 3 is the horizontal linear setting or is obliquely installed; Airflow line 3 is simple in structure; Do not turn round and the interface pipeline, duct length is little, avoids weakening the gas shock power that air-supply arrangement 1 sends; Further promote screening efficiency, production efficiency is high, production cost is low and economic benefit is high.
The remainder of present embodiment is identical with embodiment one, repeats no more here.
A kind of method for sieving of micron order powder grain material screening plant comprises following processing step:
A, according to the type of raw materials of required screening and screening specification requirement, selecting the order number is 200 screen cloth;
B, screen cloth is layed in screen cloth plate 6, then screen cloth plate 6 is inserted in screen cloth slot 5, make screen cloth 60 degree that tilt be inserted in airflow line 3;
The air output of C, the pan feeding speed of regulating feeding device 4 and adjusting air-supply arrangement 1, the powder to be sieved after feeding device 4 will be pulverized is sent into air-supply arrangement 1, and powder to be sieved and air-flow are blowed through screen cloth with the mixed of 28%:72%;
D, particle diameter fall into material-gathering device 2 less than the fines of the mesh aperture of screen cloth and carry out store collected; Particle diameter falls from coarse fodder outlet 7 greater than the coarse fodder of the mesh aperture of screen cloth; Coarse fodder is thrown in to feeding device 4 again; The air-flow of air-supply arrangement 1 blows coarse fodder through screen cloth once more and carries out regrading, and so the powder screening is promptly accomplished in circulation.
Air-flow of the present invention and powder mix, and powder fully atomizes, and have that work simplification, equipment and production cost are low, easy to maintenance, screening efficiency is high, screening effect good and energy-efficient characteristics, are convenient to generally apply.
embodiment five.
The difference of present embodiment and embodiment one is; Be provided with the second screen cloth slot that laterally arranges with said screen cloth slot 5 between the screen cloth slot 5 of present embodiment and the said material-gathering device 2; Be inserted with the second screen cloth plate that cooperates installation with the second screen cloth slot in the said second screen cloth slot; The said second screen cloth plate removably is equipped with second screen cloth; The order number of said second screen cloth is not less than the order number of said screen cloth, and the position of the lower end of the said sieve nest 8 contiguous said second screen cloth slots offers second coarse fodder outlet 7.
Particularly, the said second screen cloth slot is arranged at said sieve nest 8.The present invention can select the screen cloth and second screen cloth of different meshes specification for use; Also can adopt the screen cloth and second screen cloth of identical order number, as one preferred embodiment, sieve nest 8 is provided with the screen cloth and second screen cloth of different meshes; The order number of screen cloth is littler than the order number of second screen cloth, and mesh aperture is big.When air and mixing of materials; Airflow passes sieve nest 8; Successively through the screen cloth and second screen cloth, screen cloth is earlier with the material interception of a part of particle diameter in the air-flow mixture greater than mesh aperture, during again through second screen cloth; The material screening that particle diameter is in the mesh aperture scope of the screen cloth and second screen cloth comes out, and entering into material-gathering device 2 at last is particle diameter powder grain materials less than the second screen cloth mesh aperture.Certainly, the screen cloth of a plurality of different meshes can be set also at sieve nest 8, the multi-deck screen web frame be set at sieve nest 8; Can material be carried out gradation sizing, once screening obtains the material of different-grain diameter grade, thereby the shortening time raises the efficiency; Save the energy, improve the production separative efficiency.
In the present embodiment, the order number of second screen cloth is greater than the order number of screen cloth, and the order number of second screen cloth is 30～300 orders; Screen cloth and screen cloth plate 6, second screen cloth and the second screen cloth plate are and removably connect; In practical application, can use the screen cloth of different meshes instead according to economizing process requirements, thereby reach the purpose of isolating varigrained powder; Convenient and practical, economic benefit is good.
The remainder of present embodiment is identical with embodiment one, repeats no more here.
A kind of method for sieving of micron order powder grain material screening plant comprises following processing step:
A, according to the type of raw materials of required screening and screening specification requirement, selecting the order number is 250 screen cloth;
B, screen cloth is layed in screen cloth plate 6, then screen cloth plate 6 is inserted in screen cloth slot 5, make screen cloth 80 degree that tilt be inserted in airflow line 3;
B1, selection order number are 300 second screen cloth, and second screen cloth is layed in the second screen cloth plate, then the second screen cloth plate are inserted in the second screen cloth slot, make second screen cloth inclination, 20～80 degree be inserted in airflow line;
The air output of C, the pan feeding speed of regulating feeding device 4 and adjusting air-supply arrangement 1, the powder to be sieved after feeding device 4 will be pulverized is sent into air-supply arrangement 1, and powder to be sieved and air-flow are blowed through screen cloth with the mixed of 30%:70%;
D, particle diameter fall into material-gathering device 2 less than the fines of the mesh aperture of screen cloth and carry out store collected; Particle diameter falls from coarse fodder outlet 7 greater than the coarse fodder of the mesh aperture of screen cloth; Coarse fodder is thrown in to feeding device 4 again; The air-flow of air-supply arrangement 1 blows coarse fodder through screen cloth once more and carries out regrading, and so the powder screening is promptly accomplished in circulation.
D1, particle diameter fall from the outlet of second coarse fodder greater than the secondary coarse material of the mesh aperture of second screen cloth; Secondary coarse material is thrown in to feeding device again; The air-flow of air-supply arrangement blows secondary coarse material through the screen cloth and second screen cloth once more and carries out regrading, and so the powder screening is promptly accomplished in circulation.
Air-flow of the present invention and powder mix, and powder fully atomizes, and have that work simplification, equipment and production cost are low, easy to maintenance, screening efficiency is high, screening effect good and the characteristics of good energy-conserving effect, are convenient to generally apply.
Should be noted that at last; Above embodiment only is used to technical scheme of the present invention is described but not to the restriction of protection domain of the present invention; Although the present invention has been done detailed description with reference to preferred embodiment; Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention, and do not break away from the essence and the scope of technical scheme of the present invention.
Claims (10)
1. micron order powder grain material screening plant; It is characterized in that: comprise air-supply arrangement, material-gathering device and be arranged at said air-supply arrangement and said material-gathering device between airflow line; Said air-supply arrangement is connected with feeding device, and the position of said airflow line neighbor set materials device is provided with the screen cloth slot, and said screen cloth slot is obliquely installed; The angle of inclination is 20～80 degree; Be inserted with the screen cloth plate that cooperates installation with the screen cloth slot in the said screen cloth slot, said screen cloth plate removably is equipped with screen cloth, and the position of the lower end of the contiguous said screen cloth slot of said airflow line offers the coarse fodder outlet.
2. micron order powder grain material screening plant according to claim 1; It is characterized in that: the sieve nest that is connected with hollow between the tail end of said airflow line and the said material-gathering device; Said screen cloth slot is arranged at said sieve nest; The two ends of said sieve nest are communicated with said airflow line respectively, and the cross-sectional area of said sieve nest is greater than the cross-sectional area of said airflow line, and said screen cloth plate offers the screen cloth through hole; Said screen cloth through hole ovalize, circle or square, the area of said screen cloth through hole is greater than the cross-sectional area of said airflow line.
3. micron order powder grain material screening plant according to claim 1 is characterized in that: the order number of said screen cloth is 30～300 orders.
4. micron order powder grain material screening plant according to claim 1; It is characterized in that: said material-gathering device comprises the chamber that gathers materials that is communicated with airflow line, the fines outlet that is arranged at the dust-removal cloth-bag of the said top, chamber that gathers materials and is arranged at the said bottom, chamber that gathers materials, and said fines outlet is provided with relevant wind discharger.
5. micron order powder grain material screening plant according to claim 1, it is characterized in that: said feeding device comprises the material bin that is connected with said air-supply arrangement, the bottom of said material bin is provided with the discharging adjustable plate.
6. micron order powder grain material screening plant according to claim 1; It is characterized in that: said feeding device comprises the pulverizer that is connected with said air-supply arrangement; Said pulverizer all is connected with a motor-driven through a machine shaft with said air-supply arrangement; Said pulverizer is connected with material bin, and the bottom of said material bin is provided with the discharging adjustable plate.
7. micron order powder grain material screening plant according to claim 1; It is characterized in that: said airflow line is linear airflow line, and the height of the link of said airflow line and said material-gathering device is not less than the height of the link of said airflow line and said air-supply arrangement.
8. micron order powder grain material screening plant according to claim 1; It is characterized in that: be provided with the second screen cloth slot that laterally arranges with said screen cloth slot between said screen cloth slot and the said material-gathering device; Be inserted with the second screen cloth plate that cooperates installation with the second screen cloth slot in the said second screen cloth slot; The said second screen cloth plate removably is equipped with second screen cloth; The order number of said second screen cloth is not less than the order number of said screen cloth, and the position of the lower end of the contiguous said second screen cloth slot of said airflow line offers the outlet of second coarse fodder.
9. an application rights requires the method for sieving of any described micron order powder grain material screening plant in 1～8, it is characterized in that, comprises following processing step:
A, according to the type of raw materials of required screening and screening specification requirement, select the suitable screen cloth of order number;
B, screen cloth is layed in the screen cloth plate, then the screen cloth plate is inserted in the screen cloth slot, make screen cloth 20～80 degree that tilt be inserted in airflow line;
C, the pan feeding speed of regulating feeding device and the air output of air-supply arrangement, the powder to be sieved after feeding device will be pulverized is sent into air-supply arrangement, and powder to be sieved and air-flow are blowed through screen cloth with the mixed of 20～30%:70～80%;
D, particle diameter fall into material-gathering device less than the fines of the mesh aperture of screen cloth and carry out store collected; Particle diameter falls from the coarse fodder outlet greater than the coarse fodder of the mesh aperture of screen cloth; Coarse fodder is thrown in to feeding device again; The air-flow of air-supply arrangement blows coarse fodder through screen cloth once more and carries out regrading, and so the powder screening is promptly accomplished in circulation.
10. method for sieving according to claim 9; It is characterized in that: also comprise step B1 between said step B and the step C, select second screen cloth of order number greater than said screen cloth; Second screen cloth is layed in the second screen cloth plate; Then the second screen cloth plate is inserted in the second screen cloth slot, makes second screen cloth inclination, 20～80 degree be inserted in airflow line;
Said step D also includes step D1 afterwards, particle diameter falls from the outlet of second coarse fodder greater than the secondary coarse material of the mesh aperture of second screen cloth; Secondary coarse material is thrown in to feeding device again; The air-flow of air-supply arrangement blows secondary coarse material through the screen cloth and second screen cloth once more and carries out regrading, and so the powder screening is promptly accomplished in circulation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110363085 CN102430520B (en) | 2011-11-16 | 2011-11-16 | Micron-level powder material sieving equipment and sieving method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110363085 CN102430520B (en) | 2011-11-16 | 2011-11-16 | Micron-level powder material sieving equipment and sieving method |
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| CN102430520A true CN102430520A (en) | 2012-05-02 |
| CN102430520B CN102430520B (en) | 2013-06-26 |
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| CN 201110363085 Expired - Fee Related CN102430520B (en) | 2011-11-16 | 2011-11-16 | Micron-level powder material sieving equipment and sieving method |
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| CN103157394A (en) * | 2013-03-22 | 2013-06-19 | 湖南盛锦新材料有限公司 | Homogenization system with granule powder removal system |
| CN106179595A (en) * | 2016-07-20 | 2016-12-07 | 福建中科康膳生物科技有限公司 | Micron order wheat bran processing technique |
| CN106984448A (en) * | 2017-05-27 | 2017-07-28 | 武汉科技大学 | A kind of use for laboratory waterpower spiral screen and waterpower spiral screen system |
| CN107716309A (en) * | 2017-11-10 | 2018-02-23 | 上海燕龙基再生资源利用有限公司 | Tortuous screening machine for cullet sorting |
| CN111748411A (en) * | 2020-07-06 | 2020-10-09 | 广东顺大食品调料有限公司 | Efficient mixing and stirring device for producing matcha essence and working method thereof |
| CN114101065A (en) * | 2022-01-26 | 2022-03-01 | 山东街景智能制造科技股份有限公司 | Airflow screening device for powdery water purification material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103157394A (en) * | 2013-03-22 | 2013-06-19 | 湖南盛锦新材料有限公司 | Homogenization system with granule powder removal system |
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| CN106179595A (en) * | 2016-07-20 | 2016-12-07 | 福建中科康膳生物科技有限公司 | Micron order wheat bran processing technique |
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| CN106984448A (en) * | 2017-05-27 | 2017-07-28 | 武汉科技大学 | A kind of use for laboratory waterpower spiral screen and waterpower spiral screen system |
| CN107716309A (en) * | 2017-11-10 | 2018-02-23 | 上海燕龙基再生资源利用有限公司 | Tortuous screening machine for cullet sorting |
| CN111748411A (en) * | 2020-07-06 | 2020-10-09 | 广东顺大食品调料有限公司 | Efficient mixing and stirring device for producing matcha essence and working method thereof |
| CN114101065A (en) * | 2022-01-26 | 2022-03-01 | 山东街景智能制造科技股份有限公司 | Airflow screening device for powdery water purification material |
| CN114101065B (en) * | 2022-01-26 | 2022-05-13 | 山东街景智能制造科技股份有限公司 | Likepowder water purification material air current screening plant |
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| CN102430520B (en) | 2013-06-26 |
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