Granulated fertilizer micro-nano mineral material coat wrapping device

Abstract

A granular fertilizer micro-nano mineral material coat wrapping device comprises a coating agent adding and stirring device, a paving device, a micro-nano mineral material wrapping device and a screening bed, the stirring device comprises a spiral stirrer and a coating agent spraying device, the coating agent spraying device is arranged above the spiral stirrer, and the spiral stirrer is provided with a discharge port; a material receiving groove of the paving device is connected with a paving groove, the paving groove is connected with a chute, the paving groove is in a concave arc shape, a paving auger is arranged in the paving groove, and the chute is obliquely arranged; the micro-nano mineral wrapping device comprises a shaking table and a dispenser, and the dispenser is arranged above the shaking table; a material receiving groove of the paving device is arranged below a discharging port of the stirring device, a shaking table of the micro-nano mineral wrapping device is arranged below a chute of the paving device, and a screening bed is arranged below the shaking table and is arranged in an inclined mode. The micro-nano mineral material coating device can be used for coating a micro-nano mineral material coating on a granular fertilizer to form a micro-nano mineral material coated granular fertilizer, and is suitable for industrial production.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fertilizer production equipment, in particular to a device for coating granular fertilizer with micro-nano mineral materials. BACKGROUND

[0002] Granular fertilizer coating is a process of adding a protective film on the surface of fertilizer particles, which is like wearing a coat for granular fertilizer. After granular fertilizer coating, the utilization rate of fertilizer can be improved, nutrient loss can be reduced, environmental pollution can be reduced, and different types of coated fertilizers can adapt to different crops and soil conditions, and increase the resistance of crops. Granular fertilizer coating is the development direction of current fine farming professional fertilizers.

[0003] Mineral fertilizer refers to inorganic salt fertilizers containing plant required nutrient elements extracted from ores, which can improve soil, improve soil physical properties, increase soil porosity and effective silicon and potassium content, and improve soil pH.

[0004] Micro-nano mineral materials are materials processed to micro-nano scale, that is, the particle size of these mineral materials in three-dimensional space has any one dimension in the range of 1-100 nanometers. Micro-nano mineral materials can be applied to agriculture as mineral fertilizers after modification. For example, the related research of China Agricultural University, "Effects of Spraying Different Nano Materials on Growth and Phosphorus Absorption of Rice Seedlings", shows that nano-hydroxyapatite and potassium chloride treatment can promote the growth of rice seedlings and increase the phosphorus content of rice seedlings. The related scientific and technological literature such as "Application Research Progress of Different Nano Materials in Nano Fertilizer" summarizes the application of nano carbon, nano metal and metal oxide, nano mineral materials in nano fertilizer and their effects on crop growth, and points out that nano fertilizer has broad prospects.

[0005] If these micro-nano mineral materials are directly applied, they will not be evenly distributed in the field and cannot achieve good results.

[0006] Therefore, if micro-nano mineral materials are added during the granular fertilizer coating process to form micro-nano mineral coated granular fertilizer, it will be very convenient for applying mineral fertilizer.

[0007] The existing particle fertilizer coating equipment, such as the fertilizer coating machine disclosed in the Chinese patent document with the announcement number CN204162627U on February 18, 2015, comprises a rack, a driving motor, a speed reducer and a mixing tank with a semicircular bottom surface are arranged on the rack, a naked fertilizer feeding port is arranged at the upper portion of the mixing tank, a coating fertilizer discharging port is arranged at the bottom portion of the mixing tank, a discharging control gate is arranged at the coating fertilizer discharging port, a stirring shaft is arranged in the mixing tank, the ends of the stirring shaft are fixed in the bearing seats at the two ends of the mixing tank and are connected with the power output shaft of the speed reducer, a spiral stirring plate is arranged on the stirring shaft, a coating agent spraying device is arranged above the spiral stirring plate along the stirring shaft in the mixing tank, and the coating agent spraying device is connected with the coating agent feeding pipeline outside the mixing tank. The existing particle fertilizer coating equipment can only use the coating agent for coating and is helpless for adding the micro-nano mineral material in the coating process. Practical new type content

[0008] Therefore, the application provides a particle fertilizer micro-nano mineral material outer clothing wrapping device, which can wrap the micro-nano mineral material outer clothing for the particle fertilizer, forms the micro-nano mineral material coated particle fertilizer and is suitable for industrial production.

[0009] The utility model adopts the following technical scheme:

[0010] A particle fertilizer micro-nano mineral material outer clothing wrapping device, comprising a coating agent adding and stirring device, a spreading device, a micro-nano mineral material wrapping device and a sieve bed.

[0011] The stirring device comprises a spiral stirrer and a coating agent spraying device, the spiral stirrer is an open spiral stirrer, the coating agent spraying device is arranged above the spiral stirrer, the coating agent is sprayed into the spiral stirrer, and the spiral stirrer is provided with a discharging port.

[0012] The spreading device comprises a receiving groove, a spreading groove, a spreading auger and a chute, the receiving groove is connected with the spreading groove, the spreading groove is connected with the chute, the spreading groove is in a concave arc shape, the spreading auger is arranged in the spreading groove, and the chute is arranged in an inclined mode.

[0013] The micro-nano mineral material wrapping device comprises a shaking table and a spreader, the spreader is arranged above the shaking table, and the spreader is used for spreading the added micro-nano mineral material.

[0014] The receiving groove of the spreading device is arranged below the discharging port of the stirring device, the chute of the spreading device is arranged below the shaking table of the micro-nano mineral material wrapping device, the shaking table of the micro-nano mineral material wrapping device is arranged below the sieve bed, and the sieve bed is arranged in an inclined mode.

[0015] Further, the spiral mixer can be a double spiral mixer.

[0016] Further, the coating spraying device comprises a spraying pipe, and the spraying pipe is not one.

[0017] Further, the receiving groove is obliquely arranged.

[0018] Further, the chute is obliquely arranged and coated with a polytetrafluoroethylene coating, and the oblique angle is 20-70°.

[0019] Further, the chute is obliquely arranged and coated with a polytetrafluoroethylene coating, and the oblique angle is 20-70°.

[0020] Further, the shaking table is a steel tank shaking table, and the surface of the shaking table is coated with a polytetrafluoroethylene coating.

[0021] Further, the spreading device comprises a hopper and a spreading pipe, the spreading pipe is connected with the hopper, the spreading pipe is horizontally arranged on the shaking table, equidistantly arranged with a discharging hole on the spreading pipe, and a shaftless auger is arranged in the spreading pipe.

[0022] Further, the sieve bed is arranged below the receiving container and used for containing the sieve under matter.

[0023] Further, the shaking table and the sieve bed are arranged in a dust removal cover of a negative pressure dust removal equipment, and flying dust generated when the micro-nano mineral material is wrapped can be collected by the negative pressure dust removal equipment.

[0024] The granular fertilizer micro-nano mineral material outer clothing wrapping device has the advantages that:

[0025] 1. The granular fertilizer micro-nano mineral material outer clothing wrapping device realizes efficient and uniform wrapping of fertilizer particles through cooperation of the coating agent adding and stirring device, the spreading device, the micro-nano mineral material wrapping device and the sieve bed.

[0026] 2. The granular fertilizer micro-nano mineral material outer clothing wrapping device can realize uninterrupted production, high production efficiency, effectively reduce dust pollution and improve the working environment. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a structural schematic view of the utility model;

[0028] Figure 2 It is a top view structural schematic view of the spreading device of the utility model.

[0029] Figure 3 The utility model discloses a micro - nanometer mineral package device's structural diagram.

[0030] In the drawing: 1, coating agent adds stirring device, 11, spiral agitator, 12, sprays device, 2, paving device, 21, receiving trough, 22, paving trough, 23, paving auger, 24, chute, 3 micro - nanometer mineral material package device, 31, shaker, 32, spreader, 4, sieve bed, 5, receiving container, 6, dust hood. DETAILED DESCRIPTION

[0031] The application will be described in further detail below with reference to the drawings. Like elements in different embodiments are denoted by like reference numerals. In the following embodiments, many details are described in order to provide a better understanding of the application. However, a person skilled in the art can easily recognize that some features can be omitted in different cases, or can be replaced by other elements, materials, methods. In some cases, some operations related to the application are not shown or described in the specification in order to avoid the core of the application being overwhelmed by too much description, and it is not necessary to describe these related operations in detail for a person skilled in the art according to the description in the specification and general technical knowledge in the art.

[0032] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various embodiments, and the operation steps involved in each embodiment can also be sequentially adjusted or adjusted in a manner that is obvious to a person skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing one embodiment, and do not mean that the composition and / or order is necessary.

[0033] The serial numbers of the components in this paper, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequence or technical meaning. The "connection" and "coupling" in the application include direct and indirect connection (coupling) unless otherwise specified.

[0034] Embodiment:

[0035] Please refer to Figure 1 , Figure 2 and Figure 3 A kind of granular fertilizer micro - nanometer mineral material coating package device, including coating agent adds stirring device 1, paving device 2, micro - nanometer mineral material package device 3 and sieve bed 4;

[0036] The coating agent is added to the stirring device 1, including a spiral stirring machine 11 and a coating agent spraying device 12, the spiral stirring machine 11 is an open double spiral stirring machine, the advantage of using an open double spiral stirring machine is that it can directly feed, a large amount of granular fertilizer can be directly poured into the double spiral stirring machine. And the double spiral stirring of the two asymmetric spirals makes the material continuously turn, convect and diffuse in the cylinder, so as to achieve the effect of full mixing. This stirring method is especially suitable for mixing materials with different specific gravities and particle sizes, and will not cause segregation of the mixed materials, which ensures the quality and uniformity of the mixed materials, and is especially suitable for solid-liquid mixing. In order to coat the fertilizer particles, the coating agent is usually added to the fertilizer particles in liquid form, so that the double spiral stirring machine can more evenly stir and apply the coating agent on the surface of the fertilizer particles.

[0037] The coating agent spraying device 12 includes a spraying pipe, which is not only one, and is arranged above the spiral stirring machine 11 to spray the coating agent into the spiral stirring machine 11, and the spiral stirring machine 11 is provided with a discharge port.

[0038] The spreading device 2 includes a receiving tank 21, a spreading tank 22, a spreading auger 23 and a chute 24, the receiving tank 21 is connected to the spreading tank 22, and the receiving tank 21 is arranged obliquely, and the receiving position is located at a high position, so that the fertilizer coated with the coating agent on the surface will slide into the spreading tank 22 under the action of gravity.

[0039] The spreading tank 22 is connected to the chute 24, and the spreading tank 22 is in a concave arc shape, preferably a semicircular groove device, the spreading auger 23 is arranged in the spreading tank 22, and the fertilizer coated with the coating agent on the surface is spread to both sides by the spreading auger in the spreading tank 22, when the amount of fertilizer in the spreading tank 22 can overflow the spreading tank 22, the fertilizer particles overflowing will enter the chute 24.

[0040] The chute 24 is arranged obliquely, and the inclination angle is 35°, the fertilizer particles entering the chute 24 slide away from the spreading tank 22 under the action of gravity, and the surface of the chute 24 is coated with a polytetrafluoroethylene coating, which has the characteristic of not sticking, so that when the fertilizer coated with the coating agent on the surface passes through the chute 24, the coating agent will not form a bonding state with the chute or remain in the chute 24, and the coating agent on the fertilizer particles will not be reduced, which is conducive to the bonding of the micro-nano mineral material in the later stage, and also reduces the friction between the fertilizer and the chute 24, improves the sliding efficiency.

[0041] The chute 24 is provided with deceleration strips, the deceleration strips are not more than one, the deceleration strips are horizontally arranged in parallel, the height of the deceleration strips is 1 times of the particle size of the fertilizer particles, and the deceleration strips have two effects, one is to play a role of deceleration, so that kinetic energy is not too large when the fertilizer particles slide down to the bottom of the chute 24, and the fertilizer is not broken; and the other is that if the agglomerated fertilizer particles pass through the deceleration strips, the agglomerated fertilizer particles are blocked and scattered by the deceleration strips, so that the agglomerated fertilizer particles are dispersed.

[0042] The micro-nano mineral material wrapping device 3 comprises a shaking table 31 and a spreader 32, the shaking table 31 is a steel tank shaking table, the surface of the shaking table 31 is coated with a polytetrafluoroethylene coating, the steel tank shaking table is a screening and separating device itself, however, the shaking and swinging of the steel tank shaking table can make the fertilizer particles turn over or roll on the shaking table, and also make the micro-nano mineral material on the shaking table shake, so that the micro-nano mineral material can be uniformly adhered to the surface of the fertilizer particles to form a micro-nano mineral material coating.

[0043] The micro-nano mineral material wrapping device 3 is provided with a sieve bed 4 at the discharging position of the shaking table 31, and the sieve bed 4 is arranged in an inclined manner. The sieve bed 4 is provided with sieve holes with a diameter of 0.6 mm, so that the micro-nano mineral material can pass through the sieve holes, but the fertilizer particles cannot pass through the sieve holes. The sieve bed 4 can make the fertilizer particles tumble and fall under the action of gravity, and screen out the excess micro-nano mineral material on the fertilizer particles. The sieve bed 4 is provided with a receiving container 5 below, which is used for containing the screened material.

[0044] The shaking table 31 and the sieve bed 4 are arranged in a dust removal cover 6 of a negative pressure dust removal device.

[0045] The micro-nano mineral material coating fertilizer production process of the granular fertilizer micro-nano mineral material coating device comprises the following steps: the granular fertilizer is poured into the spiral mixer 11 of the coating agent adding and stirring device 1, the spiral mixer 11 is started, meanwhile, the coating agent spraying device 12 sprays the coating agent to the spiral mixer 11, the granular fertilizer and the coating agent are stirred by the spiral mixer 11, the coating agent is uniformly applied to the surface of the fertilizer particles, and then the granular fertilizer falls into the receiving groove 21 of the spreading device 2 through the discharge opening of the spiral mixer 11.

[0046] The receiving groove 21 is inclinedly arranged, and the fertilizer particles coated with the coating agent will slide into the spreading groove 22, since the fertilizer particles coated with the coating agent dropped from the discharge port of the spiral mixer 11 are usually dropped together in a group, thus, cannot be directly used for coating. The fertilizer particles coated with the coating agent in the group are spread and thinned by the spreading auger 23 to both sides in the spreading groove 22, in the process of spreading to both sides, the fertilizer particles coated with the coating agent in the group are broken up by the spreading auger 23, and then overflow the spreading groove 22, at this time, the fertilizer particles coated with the coating agent will slide down along the chute 24 in a clear particle, even if a small amount of fertilizer particles in the group, after passing through the deceleration strip on the chute 24, will be broken up, so as to avoid agglomeration, and the fertilizer particles coated with the coating agent in a clear particle drop onto the shaking table 31.

[0047] With the shaking and swinging of the shaking table 31, the micro-nano mineral material on the shaking table 31 will be adhered to the surface of the fertilizer particles, and tightly and uniformly wrapped, to form the micro-nano mineral material coated particle fertilizer. Then drop from the shaking table 31 to the sieve bed 4, the sieve bed 4 is inclinedly arranged, the micro-nano mineral material coated particle fertilizer will roll down in the process of passing through the sieve bed 4, and the excess micro-nano mineral material on the micro-nano mineral material coated particle fertilizer is sieved out, at the same time, the micro-nano mineral material dropped from the shaking table 31 will also drop through the sieve bed 4, to form undersize, and the receiving container 5 below the sieve bed 4 will receive the undersize, and the micro-nano mineral material coated particle fertilizer after sieving is transferred to a drying process for drying, to form the micro-nano mineral material wrapped particle fertilizer product.

[0048] The particle fertilizer micro-nano mineral material coating device of the utility model, the shaking table 31 and the sieve bed 4 are arranged in the dust removal cover 6 of the negative pressure dust removal equipment, since the particle of the micro-nano mineral material is small, dust is easy to form at the two places, through the negative pressure dust removal equipment, the dust can be removed, dust pollution is reduced, and the working environment is improved.

[0049] The above application of specific examples to the utility model is described, which is only used to help understand the utility model, and does not limit the utility model. For the skilled person in the technical field to which the utility model belongs, according to the idea of the utility model, a number of simple deductions, deformations or substitutions can be made.

Claims

1. A device for coating granular fertilizer with micro / nano mineral materials, characterized in that: It includes a coating agent addition and mixing device (1), a spreading device (2), a micro-nano mineral material coating device (3), and a sieve bed (4); The coating agent addition mixing device (1) includes a spiral mixer (11) and a coating agent spraying device (12). The spiral mixer (11) is an open spiral mixer. The coating agent spraying device (12) is located above the spiral mixer (11). The spiral mixer (11) is provided with a discharge port. The paving device (2) includes a receiving trough (21), a paving trough (22), a paving auger (23), and a chute (24). The receiving trough (21) is connected to the paving trough (22), and the paving trough (22) is connected to the chute (24). The paving trough (22) is concave arc-shaped. The paving auger (23) is installed inside the paving trough (22), and the chute (24) is inclined. The micro / nano mineral material encapsulation device (3) includes a shaker (31) and a dispenser (32), with the dispenser (32) positioned above the shaker (31). The coating agent is added to the discharge port of the mixing device (1) and a receiving trough (21) of the spreading device (2) is set below it. The chute (24) of the spreading device (2) is set below the shaking table (31) of the micro-nano mineral material coating device (3). The screen bed (4) is set below the discharge port of the shaking table (31) of the micro-nano mineral material coating device (3). The screen bed (4) is set at an inclination.

2. The micro-nano mineral material coating device for granular fertilizer according to claim 1, characterized in that: The spiral mixer (11) may be a double spiral mixer.

3. The micro-nano mineral material coating device for granular fertilizer according to claim 1, characterized in that: The coating agent spraying device (12) includes a spray pipe, and there is more than one spray pipe.

4. The micro-nano mineral material coating device for granular fertilizer according to claim 1, characterized in that: The receiving trough (21) is set at an angle.

5. The micro / nano mineral material coating device for granular fertilizer according to claim 1, characterized in that: The surface of the chute (24) is coated with a polytetrafluoroethylene coating, and the chute (24) is inclined at an angle of 20-70°.

6. The micro-nano mineral material coating device for granular fertilizer according to claim 5, characterized in that: The chute (24) is provided with a deceleration bar, and there is more than one deceleration bar. The deceleration bars are arranged horizontally and parallel to each other. The height of the deceleration bar is 0.5-3 times the particle size of the fertilizer particles.

7. The micro-nano mineral material coating device for granular fertilizer according to claim 1, characterized in that: The shaking table (31) is a steel groove shaking table, and the surface of the shaking table (31) is coated with polytetrafluoroethylene coating.

8. The micro-nano mineral material coating device for granular fertilizer according to claim 1, characterized in that: The spreader (32) includes a hopper and a spreading pipe. The spreading pipe is connected to the hopper and is horizontally arranged above the shaking table. The spreading pipe has discharge holes arranged at equal intervals and a shaftless auger is installed inside the spreading pipe.

9. The micro / nano mineral material coating device for granular fertilizer according to claim 1, characterized in that: The diameter of the sieve hole of the sieve bed (4) is no greater than one-third of the diameter of the fertilizer particles, and a receiving container (5) is provided under the sieve bed (4).

10. The micro / nano mineral material coating device for granular fertilizer according to claim 1, characterized in that: The shaking table (31) and the sieve (4) are installed inside the dust removal hood (6) of the negative pressure dust removal equipment.

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