CN112756262B - Screening equipment-based screening method for solid granular fertilizer with unqualified particle size - Google Patents
Screening equipment-based screening method for solid granular fertilizer with unqualified particle size Download PDFInfo
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- CN112756262B CN112756262B CN202011542475.5A CN202011542475A CN112756262B CN 112756262 B CN112756262 B CN 112756262B CN 202011542475 A CN202011542475 A CN 202011542475A CN 112756262 B CN112756262 B CN 112756262B
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 104
- 239000007787 solid Substances 0.000 title claims abstract description 61
- 238000012216 screening Methods 0.000 title claims abstract description 36
- 239000002245 particle Substances 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000002347 injection Methods 0.000 claims abstract description 7
- 239000007924 injection Substances 0.000 claims abstract description 7
- 239000008187 granular material Substances 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000001174 ascending effect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
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- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 239000004254 Ammonium phosphate Substances 0.000 description 1
- 206010024796 Logorrhoea Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 1
- 235000019289 ammonium phosphates Nutrition 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000021049 nutrient content Nutrition 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/04—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices according to size
- B07B13/07—Apparatus in which aggregates or articles are moved along or past openings which increase in size in the direction of movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/14—Details or accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/14—Details or accessories
- B07B13/16—Feed or discharge arrangements
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- Fertilizing (AREA)
Abstract
The invention discloses a screening device-based screening method for unqualified particle size solid granular fertilizer, which is based on a screening device and comprises a bottom plate and an inclined plate above the bottom plate; the outer side of the lower end of the inclined plate is sequentially provided with a first vertical plate, a second vertical plate and a third vertical plate, the heights of the three vertical plates are gradually increased, the tops of the three vertical plates are provided with inclined slideways, the inclined directions of the inclined slideways are consistent with those of the inclined plate, the baffle plates on the side portions of the three vertical plates are provided with air injection holes, and the inclined slideways are far away from passage ports with different widths on the baffle plates; a lifting platform and a motor are arranged above the bottom plate, and a connecting rod mechanism is arranged between the motor and the lifting platform; the lifting platform is provided with a fourth vertical plate, a fifth vertical plate and a sixth vertical plate, the fourth vertical plate is attached between the lower end of the inclined plate and the first vertical plate, the fifth vertical plate is attached between the first vertical plate and the second vertical plate, and the sixth vertical plate is attached between the second vertical plate and the third vertical plate. According to the invention, the fertilizer particles with unqualified particle sizes are screened out step by step through ascending transmission layer by layer, so that the fertilizer particles are convenient to classify and use after production.
Description
Technical Field
The invention relates to a screening device-based screening method for unqualified particle size solid granular fertilizer, and belongs to the technical field of agriculture.
Background
The solid fertilizer is a substance which provides one or more nutrient elements necessary for plants, improves the soil property and improves the soil fertility level, is one of the material bases of agricultural production, mainly comprises ammonium phosphate fertilizers, macroelement water-soluble fertilizers, secondary element fertilizers, biological fertilizers, organic fertilizers, multi-dimensional field energy concentrated organic fertilizers and the like, has standard requirements on particle size, is fragile and inconvenient to transport and store, and has poor use effect and difficult control of the using amount of the solid fertilizers with larger particle size.
The traditional solid granular fertilizer manufacturing equipment can produce a small amount of solid fertilizer with larger or smaller grain diameter due to the process or equipment precision, the unqualified grains account for about 40 percent of the total amount, and the unqualified grains are mixed in the solid fertilizer with the grain diameter of standard specification for use together, so that the best effect on the production of crops cannot be achieved; after the transformation and development of modern agriculture, people know that the dosage of the solid granular fertilizer required by different soils and crops has very strict requirements, and the dosage standard is obtained through repeated tests and calculation, so that the optimal planting condition of the crops can be achieved, the growth speed, the yield and the nutrient content of the crops can be improved, and the growth qualification rate of the crops can be improved to the maximum extent.
Traditional solid granular fertilizer screening is generally manually screened by a screen, the efficiency is low, particles with small particle sizes can be usually removed, along with the development of modern agriculture, mechanical equipment is rarely used for screening, and related mechanical equipment is poor in functionality and not intelligent enough.
Disclosure of Invention
The invention provides a screening method of solid granular fertilizers with unqualified grain diameters, aiming at the problems that the solid fertilizers produced by solid granular fertilizer manufacturing equipment are doped with granular fertilizers with larger or smaller grain diameters and the traditional technology cannot automatically remove and screen the granular fertilizers.
In order to solve the technical problems, the invention adopts the technical scheme that:
a screening device based solid granular fertilizer screening method with unqualified particle size comprises a bottom plate, wherein an inclined plate is fixedly arranged on the bottom plate; the outer side of the lower end of the inclined plate in the inclined direction is sequentially provided with a first vertical plate, a second vertical plate and a third vertical plate, the side part of the inclined plate is fixedly connected with the first vertical plate and the second vertical plate, the height of the third vertical plate is greater than that of the second vertical plate, the height of the second vertical plate is greater than that of the first vertical plate, the tops of the first vertical plate, the second vertical plate and the third vertical plate are provided with inclined slideways, the baffle at the end part of each inclined slideway is provided with an air injection hole, the inclination and the inclination direction of each inclined slideway are consistent with those of each inclined plate, one side of each inclined slideway, far away from the baffle, is provided with a passage port for rolling in granular solid fertilizer, a passage port on the first vertical plate is narrower than a passage port on the second vertical plate, a passage port on the second vertical plate is narrower than a passage port on the third vertical plate, the passage ports on the second vertical plate are the width of the grain size of the standard solid granular fertilizer, and the three passage ports are respectively communicated with a collecting device; a lifting platform is arranged above the bottom plate, a telescopic rod is arranged between the lifting platform and the bottom plate, and a lifting driving device is arranged on the bottom plate; the lifting platform is provided with a fourth vertical plate, a fifth vertical plate and a sixth vertical plate, the sixth vertical plate is higher than the fifth vertical plate, the fifth vertical plate is higher than the fourth vertical plate, the fourth vertical plate is attached between the lower end of the inclined plate and the first vertical plate, the fifth vertical plate is attached between the first vertical plate and the second vertical plate, the sixth vertical plate is attached between the second vertical plate and the third vertical plate, and the tops of the fourth vertical plate, the fifth vertical plate and the sixth vertical plate are all inclined edges with the same inclination and the same inclination direction as the inclined plate; the screening method comprises the following steps:
the method comprises the following steps: solid granular fertilizer from a fertilizer manufacturer is poured into the inclined plate, the solid granular fertilizer rolls from the inclined plate to the tail end of the inclined plate and the position of the fourth vertical plate, and the lifting equipment drives the lifting platform to move up and down along the telescopic rod;
step two: the fourth vertical plate descends, the inclined edge of the fourth vertical plate and the inclined plate are positioned on the same plane, and part of the solid granular fertilizer on the inclined plate rolls to the inclined edge of the fourth vertical plate and is blocked by the first vertical plate;
step three: the fourth vertical plate ascends, the inclined edge of the fourth vertical plate and the inclined slide way of the first vertical plate are positioned on the same plane, the solid granular fertilizer on the inclined edge of the fourth vertical plate rolls onto the inclined slide way of the first vertical plate and is blocked by the fifth vertical plate, the granular fertilizer is blown by wind to enter the passage openings of the first vertical plate one by one, smaller particles can enter the passage openings, and standard or larger particles are blocked outside the passage openings of the first vertical plate;
step four: the fifth vertical plate descends, the inclined edge of the fifth vertical plate and the inclined slide way of the first vertical plate are positioned on the same plane, and the solid granular fertilizer on the inclined slide way of the first vertical plate rolls to the inclined edge of the fifth vertical plate and is blocked by the second vertical plate;
step five: the fifth vertical plate ascends, the inclined edge of the fifth vertical plate and the inclined slide way of the second vertical plate are positioned on the same plane, the solid granular fertilizer on the inclined edge of the fifth vertical plate rolls onto the inclined slide way of the second vertical plate and is blocked by the sixth vertical plate, the granular fertilizer is blown by wind to enter the passage openings of the second vertical plate one by one, smaller and standard granules can enter the passage openings, and larger granules are blocked outside the passage openings of the second vertical plate;
step six: the sixth vertical plate descends, the inclined edge of the sixth vertical plate and the inclined slide way of the second vertical plate are positioned on the same plane, and the solid granular fertilizer on the inclined slide way of the second vertical plate rolls to the inclined edge of the sixth vertical plate and is blocked by the third vertical plate;
step seven: the sixth vertical plate ascends, the inclined edge of the sixth vertical plate and the inclined slide way of the third vertical plate are positioned on the same plane, the solid granulated fertilizer on the inclined edge of the sixth vertical plate rolls onto the inclined slide way of the third vertical plate, the granulated fertilizer is blown by wind to enter the passage openings of the third vertical plate one by one, and smaller, standard and larger granules can enter the passage openings;
step eight: pouring the granulated fertilizer in the collecting device connected with the passage opening of the third vertical plate into the inclined plate again for secondary screening;
step nine: and (4) pouring the granular fertilizer in the collecting device connected with the passage opening of the second vertical plate into the inclined plate again for secondary screening.
As a further preferable scheme, in the step one, the frequency of the lifting times of the lifting device driving the lifting platform is 10 times to 15 times/min.
As a further preferred option, in step one, the solid granular fertilizer is continuously poured onto a sloping plate.
As a further preferred option, step eight is repeated at least 10 times, said step nine: repeat at least 5 times.
Compared with the prior art, the method screens a small amount of nonstandard fertilizer particles with large and small particle sizes step by step for multiple times through ascending transmission layer by layer, improves the content of standard particle sizes in the solid fertilizer, is convenient for classification and subsequent use after the solid particle fertilizer is produced, combines the specification of the amount of the modern agriculture high-requirement high-standard fertilizer, can improve the planting conditions of crops, improves the yield, and has the advantages of intelligent screening process, high screening efficiency and high automation degree.
Drawings
FIG. 1 is a schematic diagram of the structure of the apparatus of the present invention;
fig. 2 is a top view of the apparatus of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The invention relates to a screening device-based screening method for unqualified particle size solid granular fertilizer, which is based on a screening device and comprises a bottom plate 1, wherein an inclined plate 2 is fixedly arranged on the bottom plate 1, the inclined plate 2 is positioned above the bottom plate 1 and keeps a certain inclination, so that the solid granular fertilizer can roll from top to bottom conveniently, and the solid granular fertilizer on the inclined plate 2 is preferably not accumulated and keeps a layer as much as possible, and the fed particles are preferably in a continuous small-amount feeding mode.
The outside of the lower one end of swash plate 2 incline direction has set gradually first riser 3, second riser 4, third riser 5, first riser 3, second riser 4, third riser 5 is parallel to each other, there is the interval each other, the lateral part of swash plate 2 has first riser 3 of fixed connection, second riser 4, the baffle 21 of third riser 5, baffle 21 perpendicular to first riser 3, second riser 4, third riser 5, first riser 3, second riser 4, third riser 5 and swash plate 2 form a whole, the height of third riser 5 is greater than second riser 4, the height of second riser 4 is greater than first riser 3, the difference in height is generally the same, have the clearance between swash plate 2 and first riser 3, have the clearance between first riser 3 and the second riser 4, have the clearance between second riser 4 and the third riser 5.
The edges of the tops of the first vertical plate 3, the second vertical plate 4 and the third vertical plate 5 are provided with an inclined slideway 6, the inclined slideway 6 is also vertical to the direction of the baffle plate 21, the baffle plate 21 at the end part of the inclined slideway 6 is provided with an air injection hole 19, the air injection hole 19 can blow air, the air injection direction is consistent with that of the inclined slideway 6, the inclined direction of the inclined slideway 6 is consistent with that of the inclined plate 2, the solid granular fertilizer can roll towards the inclined direction of the inclined plate 2 on the inclined slideway 6, and can be blown to roll towards the direction away from the baffle plate 21 under the action of the air injection hole 19, one side of the inclined slideway 6, which is far away from the baffle plate 21, is provided with a passage opening 7 for rolling the granular solid fertilizer, the passage opening 7 on the first vertical plate 3 is narrower than the passage opening 7 on the second vertical plate 4, the passage opening 7 on the second vertical plate 4 is narrower than the passage opening 7 on the third vertical plate 5, and the passage opening 7 on the second vertical plate 4 is the width of the grain diameter of the standard solid granular fertilizer, three entrance 7 communicates a collection device respectively, solid particle fertilizer can roll into entrance 7 of different width and get into different collection device according to the particle diameter of difference, specifically speaking, less particle fertilizer can get into entrance 7 of first riser 3, and standard and great particle fertilizer then can not get into, less and standard particle fertilizer can get into entrance 7 of second riser 4, great particle fertilizer then can not get into, it is less, standard and great particle fertilizer all can get into entrance 7 on third riser 5, because the slope of slope slide 6, any size particle fertilizer can form one row automatically on slope slide 6, it gets into entrance 7 one by one to be blown by wind.
The lifting platform 8 is arranged above the bottom plate 1, the telescopic rod 9 is arranged between the lifting platform 8 and the bottom plate 1, the motor 10 is further arranged on the bottom plate 1, the power output end of the motor 10 is provided with the rotary table 11, the rotary table 11 is provided with the pin shaft, the side part of the lifting platform 8 is also provided with the pin shaft, the connecting rod 20 is hinged between the two pin shafts, and the motor 10 rotates to drive the lifting platform 8 to move up and down along the telescopic rod 9 through the connecting rod 20.
The lifting platform 8 is provided with a fourth vertical plate 12, a fifth vertical plate 13 and a sixth vertical plate 14 which are parallel to each other, the fourth vertical plate 12, the fifth vertical plate 13 and the sixth vertical plate 14 are arranged in sequence at the outer side of the lower end of the inclined plate 2 and are all vertical to the baffle 21, the sixth vertical plate 14 is higher than the fifth vertical plate 13, the fifth vertical plate 13 is higher than the fourth vertical plate 12, the height difference is generally the same, the fourth vertical plate 12 is attached between the lower end of the inclined plate 2 and the first vertical plate 3, the fifth vertical plate 13 is attached between the first vertical plate 3 and the second vertical plate 4, the sixth vertical plate 14 is attached between the second vertical plate 4 and the third vertical plate 5, the tops of the fourth vertical plate 12, the fifth vertical plate 13 and the sixth vertical plate 14 are inclined edges 15 which are the same as the inclination and the inclination direction of the inclined plate 2, when the lifting platform 8 is lifted to the highest point, the inclined edges 15 of the fourth vertical plate 12 and the inclination 6 of the first vertical plate 3 are in the same plane, the inclined edge 15 of the fifth vertical plate 13 and the inclined slideway 6 of the second vertical plate 4 are positioned on the same plane, the inclined edge 15 of the sixth vertical plate 14 and the inclined slideway 6 of the third vertical plate 5 are positioned on the same plane, when the lifting platform 8 is lifted to the lowest point, the inclined edge 15 of the fourth vertical plate 12 and the inclined plate 2 are positioned on the same plane, the inclined edge 15 of the fifth vertical plate 13 and the inclined slideway 6 of the first vertical plate 3 are positioned on the same plane, and the inclined edge 15 of the sixth vertical plate 14 and the inclined slideway 6 of the second vertical plate 4 are positioned on the same plane.
It should be noted that first vertical plate 3, second vertical plate 4, third vertical plate 5, fourth vertical plate 12, fifth vertical plate 13, and sixth vertical plate 14 are all in a horizontal state, or have a certain slope in a direction perpendicular to baffle 21, that is, the side close to baffle 21 is higher, and at the same time, inclined plate 2 also has a certain slope in a direction perpendicular to baffle 21.
The height difference of the first vertical plate 3, the second vertical plate 4 and the third vertical plate 5 is the same as L, the height difference of the fourth vertical plate 12, the fifth vertical plate 13 and the sixth vertical plate 14 is also the same as L, and the height difference of the motor 10 driving the lifting platform 8 to lift is also L.
When the lifting device is used, solid granular fertilizer of a fertilizer manufacturer is poured into the inclined plate 2, a small amount of granular fertilizer with large grain diameter and small grain diameter is doped in the solid granular fertilizer, the solid granular fertilizer rolls from the inclined plate 2 to the tail end of the inclined plate 2 and the position of the fourth vertical plate 12, and the motor 10 rotates to drive the lifting platform 8 to move up and down along the telescopic rod 9 through the connecting rod 20;
the fourth vertical plate 12 descends, the inclined edge 15 of the fourth vertical plate 12 and the inclined plate 2 are in the same plane, and part of the solid granular fertilizer on the inclined plate 2 rolls onto the inclined edge 15 of the fourth vertical plate 12 and is blocked by the first vertical plate 3;
the fourth vertical plate 12 moves upwards, the inclined edge 15 of the fourth vertical plate 12 and the inclined slideway 6 of the first vertical plate 3 are positioned on the same plane, the solid granular fertilizer on the inclined edge 15 of the fourth vertical plate 12 rolls onto the inclined slideway 6 of the first vertical plate 3 and is blocked by the fifth vertical plate 13, the granular fertilizer is blown by wind to enter the passage openings 7 of the first vertical plate 3 one by one, smaller granules can enter the passage openings, and standard or larger granules are blocked outside the passage openings 7 of the first vertical plate 3;
the fifth vertical plate 13 moves downwards, the inclined edge 15 of the fifth vertical plate 13 and the inclined slideway 6 of the first vertical plate 3 are positioned on the same plane, and the solid granular fertilizer on the inclined slideway 6 of the first vertical plate 3 rolls onto the inclined edge 15 of the fifth vertical plate 13 and is blocked by the second vertical plate 4;
the fifth vertical plate 13 moves upwards, the inclined edge 15 of the fifth vertical plate 13 and the inclined slideway 6 of the second vertical plate 4 are positioned on the same plane, the solid granular fertilizer on the inclined edge 15 of the fifth vertical plate 13 rolls onto the inclined slideway 6 of the second vertical plate 4 and is blocked by the sixth vertical plate 14, the granular fertilizer is blown by wind to enter the passage openings 7 of the second vertical plate 4 one by one, smaller and standard granules can enter, and larger granules are blocked outside the passage openings 7 of the second vertical plate 4;
the sixth vertical plate 14 moves downwards, the inclined edge 15 of the sixth vertical plate 14 and the inclined slideway 6 of the second vertical plate 4 are positioned on the same plane, and the solid granular fertilizer on the inclined slideway 6 of the second vertical plate 4 rolls onto the inclined edge 15 of the sixth vertical plate 14 and is blocked by the third vertical plate 5;
the sixth vertical plate 14 moves upwards, the inclined edge 15 of the sixth vertical plate 14 and the inclined slideway 6 of the third vertical plate 5 are positioned on the same plane, solid granular fertilizer on the inclined edge 15 of the sixth vertical plate 14 rolls onto the inclined slideway 6 of the third vertical plate 5, the granular fertilizer is blown by wind to enter the passage openings 7 of the third vertical plate 5 one by one, and smaller, standard and larger granules can enter the passage openings;
the granulated fertilizer in the collecting device connected with the passage opening 7 of the third vertical plate 5 is poured into the inclined plate 2 again for secondary screening;
the granulated fertilizer in the collecting device connected with the passage opening 7 of the second vertical plate 4 is poured into the inclined plate 2 again for secondary screening;
finally, the solid granular fertilizers with the three specifications of smaller grain size, standard grain size and larger grain size are classified and screened in three collecting devices, the collecting devices of the granular fertilizers with the standard grain size cannot contain the granular fertilizers with larger grain size, and the content of the granular fertilizers with smaller grain size is very low.
One side of the fourth vertical plate 12, the fifth vertical plate 13, and the sixth vertical plate 14, which is away from the baffle 21, is provided with a stopper 16 for blocking the granular fertilizer to avoid being blown out by wind, and the distances from the passage opening 7 of the first vertical plate 3, the passage opening 7 of the second vertical plate 4, the passage opening 7 of the third vertical plate 5, the stopper 16 of the fourth vertical plate 12, the stopper 16 of the fifth vertical plate 13, and the stopper 16 of the sixth vertical plate 14 to the baffle 21 are the same, that is, the problem of mutual interference caused by the passage opening 7 or the stopper 16 blocking the granular fertilizer after uploading is avoided.
An outer plate 17 is fixedly arranged on the outer side of the third vertical plate 5 to prevent granular fertilizer from spilling out.
It has dust hole 18 to distribute on swash plate 2, has the clearance that is used for dropping garrulous granule and dust between the lower one end of fourth riser 12 and swash plate 2, and granule solid fertilizer is when rolling on swash plate 2, and the dust can drop to also can drop the piece between the lower one end of fourth riser 12 and swash plate 2.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only examples of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A screening method of unqualified particle size solid granular fertilizer based on screening equipment is characterized by comprising the following steps: the screening equipment comprises a bottom plate (1), wherein an inclined plate (2) is fixedly arranged on the bottom plate (1); a first vertical plate (3), a second vertical plate (4) and a third vertical plate (5) are sequentially arranged on the outer side of the lower end of the inclined plate (2) in the inclined direction, a baffle (21) fixedly connected with the first vertical plate (3), the second vertical plate (4) and the third vertical plate (5) is arranged on the side portion of the inclined plate (2), the height of the third vertical plate (5) is larger than that of the second vertical plate (4), the height of the second vertical plate (4) is larger than that of the first vertical plate (3), an inclined slide way (6) is arranged on the top of the first vertical plate (3), the top of the second vertical plate (4) and the top of the third vertical plate (5), an air injection hole (19) is formed in the baffle (21) at the end of the inclined slide way (6), the inclination and the inclined direction of the inclined slide way (6) are consistent with the inclined plate (2), a passage opening (7) for rolling-in of granular solid fertilizer is formed in one side, away from the baffle (21), of the inclined slide way (6), the passage opening (7) on the first vertical plate (3) is narrower than the passage opening (7) on the second vertical plate (4), a channel opening (7) on the second vertical plate (4) is narrower than a channel opening (7) on the third vertical plate (5), the channel opening (7) on the second vertical plate (4) is the width of the grain diameter of the standard solid granular fertilizer, and the three channel openings (7) are respectively communicated with a collecting device; a lifting platform (8) is arranged above the bottom plate (1), a telescopic rod (9) is arranged between the lifting platform (8) and the bottom plate (1), and a lifting driving device is arranged on the bottom plate (1); a fourth vertical plate (12), a fifth vertical plate (13) and a sixth vertical plate (14) are arranged on the lifting platform (8), the sixth vertical plate (14) is higher than the fifth vertical plate (13), the fifth vertical plate (13) is higher than the fourth vertical plate (12), the fourth vertical plate (12) is attached between the lower end of the inclined plate (2) and the first vertical plate (3), the fifth vertical plate (13) is attached between the first vertical plate (3) and the second vertical plate (4), the sixth vertical plate (14) is attached between the second vertical plate (4) and the third vertical plate (5), and the tops of the fourth vertical plate (12), the fifth vertical plate (13) and the sixth vertical plate (14) are inclined edges (15) with the same inclination and the same inclination direction as the inclined plate (2); the screening method comprises the following steps:
the method comprises the following steps: solid granular fertilizer of a fertilizer manufacturer is poured into the inclined plate (2), the solid granular fertilizer rolls from the inclined plate (2) to the tail end of the inclined plate (2) and the position of the fourth vertical plate (12), and the lifting equipment drives the lifting platform (8) to move up and down along the telescopic rod (9);
step two: the fourth vertical plate (12) descends, the inclined edge (15) of the fourth vertical plate (12) and the inclined plate (2) are positioned on the same plane, and part of the solid granular fertilizer on the inclined plate (2) rolls onto the inclined edge (15) of the fourth vertical plate (12) and is blocked by the first vertical plate (3);
step three: the fourth vertical plate (12) moves upwards, the inclined edge (15) of the fourth vertical plate (12) and the inclined slideway (6) of the first vertical plate (3) are positioned on the same plane, solid granular fertilizer on the inclined edge (15) of the fourth vertical plate (12) rolls onto the inclined slideway (6) of the first vertical plate (3) and is blocked by the fifth vertical plate (13), the granular fertilizer is blown by wind to enter the passage opening (7) of the first vertical plate (3) one by one, smaller granules can enter the passage opening, and standard or larger granules are blocked outside the passage opening (7) of the first vertical plate (3);
step four: the fifth vertical plate (13) descends, the inclined edge (15) of the fifth vertical plate (13) and the inclined slide way (6) of the first vertical plate (3) are positioned on the same plane, and the solid granular fertilizer on the inclined slide way (6) of the first vertical plate (3) rolls onto the inclined edge (15) of the fifth vertical plate (13) and is blocked by the second vertical plate (4);
step five: the fifth vertical plate (13) moves upwards, the inclined edge (15) of the fifth vertical plate (13) and the inclined slideway (6) of the second vertical plate (4) are positioned on the same plane, solid granular fertilizer on the inclined edge (15) of the fifth vertical plate (13) rolls onto the inclined slideway (6) of the second vertical plate (4) and is blocked by the sixth vertical plate (14), the granular fertilizer is blown by wind to enter the passage openings (7) of the second vertical plate (4) one by one, smaller and standard granules can enter, and larger granules are blocked outside the passage openings (7) of the second vertical plate (4);
step six: the sixth vertical plate (14) descends, an inclined edge (15) of the sixth vertical plate (14) and an inclined slide way (6) of the second vertical plate (4) are positioned on the same plane, and the solid granular fertilizer on the inclined slide way (6) of the second vertical plate (4) rolls onto the inclined edge (15) of the sixth vertical plate (14) and is blocked by the third vertical plate (5);
step seven: the sixth vertical plate (14) moves upwards, the inclined edge (15) of the sixth vertical plate (14) and the inclined slideway (6) of the third vertical plate (5) are positioned on the same plane, solid granular fertilizer on the inclined edge (15) of the sixth vertical plate (14) rolls onto the inclined slideway (6) of the third vertical plate (5), the granular fertilizer is blown by wind to enter the passage openings (7) of the third vertical plate (5) one by one, and smaller, standard and larger granules can enter the passage openings;
step eight: the granulated fertilizer in the collecting device connected with the passage opening (7) of the third vertical plate (5) is poured into the inclined plate (2) again for secondary screening;
step nine: and (3) pouring the granular fertilizer in the collecting device connected with the passage opening (7) of the second vertical plate (4) into the inclined plate (2) again for secondary screening.
2. The screening method of the solid granulated fertilizer with the unqualified grain diameter based on the screening equipment as claimed in claim 1, which is characterized in that: in the first step, the frequency of the lifting times of the lifting equipment driving the lifting platform (8) is 10-15 times/min.
3. The screening method of the solid granulated fertilizer with the unqualified grain diameter based on the screening equipment as claimed in claim 1, which is characterized in that: in the first step, the solid granular fertilizer is continuously poured onto the inclined plate (2).
4. The screening method of the solid granulated fertilizer with the unqualified grain diameter based on the screening equipment as claimed in claim 1, which is characterized in that: repeating the step eight at least 10 times, and performing the step nine: repeat at least 5 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN202555496U (en) * | 2012-05-15 | 2012-11-28 | 浙江百兴食品有限公司 | Grading sorting machine |
| CN205074205U (en) * | 2015-11-11 | 2016-03-09 | 四川超益环保科技有限公司 | Multistage minute screen(ing) machine of organic fertilizer |
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| CN210906902U (en) * | 2019-11-14 | 2020-07-03 | 帝益生态肥业股份公司 | Chemical fertilizer divides sieve device |
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Denomination of invention: A screening method for unqualified particle size solid granular fertilizer based on screening equipment Effective date of registration: 20220815 Granted publication date: 20220527 Pledgee: Bank of China Limited by Share Ltd. Guangzhou Liwan branch Pledgor: GUANGDONG SENDU ECOLOGICAL AGRICULTURE TECHNOLOGY CO.,LTD. Registration number: Y2022440000203 |