CN111066412B - Aquatic plant seed particles, production method and granulation equipment - Google Patents
Aquatic plant seed particles, production method and granulation equipment Download PDFInfo
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- CN111066412B CN111066412B CN202010015580.7A CN202010015580A CN111066412B CN 111066412 B CN111066412 B CN 111066412B CN 202010015580 A CN202010015580 A CN 202010015580A CN 111066412 B CN111066412 B CN 111066412B
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- pelletization
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- 239000002245 particle Substances 0.000 title claims abstract description 43
- 238000005469 granulation Methods 0.000 title claims abstract description 29
- 230000003179 granulation Effects 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000000843 powder Substances 0.000 claims abstract description 19
- 239000004575 stone Substances 0.000 claims abstract description 16
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 14
- 239000000440 bentonite Substances 0.000 claims abstract description 14
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 14
- 108010010803 Gelatin Proteins 0.000 claims abstract description 13
- 239000008273 gelatin Substances 0.000 claims abstract description 13
- 229920000159 gelatin Polymers 0.000 claims abstract description 13
- 235000019322 gelatine Nutrition 0.000 claims abstract description 13
- 235000011852 gelatine desserts Nutrition 0.000 claims abstract description 13
- 229920001285 xanthan gum Polymers 0.000 claims abstract description 11
- 229940082509 xanthan gum Drugs 0.000 claims abstract description 11
- 235000010493 xanthan gum Nutrition 0.000 claims abstract description 11
- 239000000230 xanthan gum Substances 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims description 66
- 238000001125 extrusion Methods 0.000 claims description 27
- 238000005453 pelletization Methods 0.000 claims description 25
- 238000005520 cutting process Methods 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 15
- 239000008187 granular material Substances 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 229910000281 calcium bentonite Inorganic materials 0.000 claims description 4
- 239000000084 colloidal system Substances 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims 6
- 239000008188 pellet Substances 0.000 claims 3
- 238000000034 method Methods 0.000 abstract description 14
- 238000009331 sowing Methods 0.000 abstract description 7
- 241000196324 Embryophyta Species 0.000 description 30
- 238000003466 welding Methods 0.000 description 10
- 238000003860 storage Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 239000002689 soil Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000035784 germination Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000004927 clay Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000009355 double cropping Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 240000000359 Triticum dicoccon Species 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
- A01C1/06—Coating or dressing seed
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/10—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/10—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material
- A01G24/12—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material containing soil minerals
- A01G24/15—Calcined rock, e.g. perlite, vermiculite or clay aggregates
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/30—Growth substrates; Culture media; Apparatus or methods therefor based on or containing synthetic organic compounds
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/40—Growth substrates; Culture media; Apparatus or methods therefor characterised by their structure
- A01G24/42—Growth substrates; Culture media; Apparatus or methods therefor characterised by their structure of granular or aggregated structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/805—Mixing plants; Combinations of mixers for granular material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/20—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by expressing the material, e.g. through sieves and fragmenting the extruded length
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Environmental Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Soil Sciences (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Pretreatment Of Seeds And Plants (AREA)
Abstract
The invention discloses an aquatic plant seed particle, a production method and granulation equipment, wherein the seed particle is prepared from bentonite; stone powder; gelatin; xanthan gum; aquatic plant seeds with the particle size of less than 0.1 cm; and (3) preparing water. The invention mixes the aquatic plant seeds with other raw materials, and carries out underwater sowing in a certain weight of particles, compared with the method of directly sowing the aquatic plant seeds, the method is easier to cause the seeds to enter underwater silt and take root.
Description
Technical Field
The invention relates to aquatic plant seed particles, a production method and granulation equipment, in particular to particles prepared by mixing aquatic plant seeds with other substances on a large water surface, a production method and granulation equipment, and belongs to the technical field of water quality treatment on the large water surface.
Background
Large water surface mainly refers to water areas with relatively large water areas, such as lakes, reservoirs, rivers, wetlands and the like. Due to improper large-area culture in recent years, water quality problems such as eutrophication and the like occur in water bodies.
The existing methods for treating water pollution mainly comprise three types, namely a physical treatment method, a chemical treatment method and a biological treatment method, wherein the biological treatment method is vigorously popularized due to no secondary pollution to the environment and contribution to construction and recovery of the ecological environment, and particularly relies on construction of an aquatic animal food chain, construction of an aquatic plant population or beneficial microorganisms to improve the water quality. In practical application, the aquatic plants, mainly submerged plants, are generally used for treating eutrophic water, and most of the submerged plants are suitable for living in shallow water areas with the depth of 1.0-1.5 m.
The planting method of the submerged plant mainly comprises seed planting and seedling planting, wherein the seed planting is difficult to artificially reduce the water level during sowing due to a large water surface, and the seeds can float and cannot enter soil and root when being directly sown. Therefore, in the prior art, submerged plant seeds and clay are mixed and then granulated in a conventional granulator to increase the weight of the seeds, and then are manually thrown into a water body, so that the survival rate of planting can be improved, but due to the limitation of the granulating mode, the prepared particles are almost spherical, the clay wrapped outside the seeds or other substances used for increasing the weight of the seeds are uniformly distributed, and the germination and soil breaking rate of the seeds is easily influenced under certain conditions. If the method can provide the granules with the upper density difference and the lower density difference, the method has important improvement significance for large-water-surface underwater planting of the aquatic plant seeds.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide aquatic plant seed particles, a production method and granulation equipment so as to realize fixed-point quantitative sowing.
In order to achieve the purpose, one of the technical schemes adopted by the invention is as follows: the aquatic plant seed particle is characterized by being prepared by mixing the following raw materials in percentage by weight:
10-20% of bentonite;
30-45% of stone powder;
3-10% of gelatin;
2-6% of xanthan gum;
5-8% of aquatic plant seeds with the particle size of less than 0.1 cm;
20-40% of water.
Preferably, the aquatic plant seed particles are prepared by mixing the following raw materials in percentage by weight:
20% of bentonite;
40% of stone powder;
6% of gelatin;
2% of xanthan gum;
5% of aquatic plant seeds with the particle size of less than 0.1 cm;
and 27% of water.
Further, the bentonite is calcium bentonite, and the stone powder is maifanite powder.
Furthermore, the particle size of the bentonite is controlled to be 100-200 meshes, and the particle size of the stone powder is controlled to be 30-80 meshes.
The second technical scheme adopted by the invention is as follows: the aquatic plant seed particles are prepared by fully mixing bentonite, stone powder and aquatic plant seeds, adding normal temperature water, fully stirring uniformly, heating to 50-70 ℃, preserving heat, adding gelatin which is heated and dissolved into a colloid state on the basis of heat preservation, fully stirring uniformly, cooling and granulating.
Further, the cooling granulation is performed in granulation equipment, the granulation equipment comprises a vertical first shell, a blanking hopper is fixed at the top of the first shell, and the granulation equipment is characterized in that the first shell is internally divided into a first mixing area and a second mixing area from top to bottom in sequence, a flap valve is fixed between the first mixing area and the second mixing area, the material flows from the first mixing area to the second mixing area or is prevented from flowing from the first mixing area to the second mixing area through opening or closing of the flap valve, and the bottom of the first shell extends to the lower part of the second mixing area; mixing the district below at the second and being fixed with the pelletization district, the pelletization district is fixed with the pelletization cylinder, sets up a plurality of pelletization passageways that link up the pelletization cylinder from top to bottom on the pelletization cylinder, is fixed with a cutting knife on every pelletization cylinder below upper portion, and cutting knife one side is connected with the cutting cylinder, and the cutting cylinder drives the cutting knife and carries out parallel cut from corresponding pelletization cylinder one side to the offside, has the second shell at every pelletization cylinder periphery welded fastening.
Preferably, the bottom discharge port of the second mixing area is funnel-shaped, a blanking pipeline is connected to the bottom of the second mixing area and is communicated with the second mixing area, a first valve is fixed on the blanking pipeline, the bottom end of the blanking pipeline is connected and communicated with the front end of an extrusion channel below, the extrusion channel is a transverse channel and is fixed between the second mixing area and the granulation area, a piston rod is fixed in the extrusion channel, one end of the piston rod is fixed with a piston which is positioned in the extrusion channel, the outlet of the extrusion channel is connected with a section of feeding pipe, the bottom of the feeding pipe is provided with a plurality of blanking holes which are in one-to-one correspondence with the granulation channels on the granulation cylinder, the upper part of the feeding pipe is fixed with a second valve, the bottom of the feeding pipe is connected and communicated with a circular material distributing piece, the circular material distributing piece is hollow cylindrical, and a plurality of through holes which are in one-to-one correspondence with the granulation channels on the granulation cylinder are arranged at the bottom of the circular material distributing piece, the bottom of the first shell extends to a position 3-5cm below the bottom of the circular distributing part.
Preferably, the pelletization cylinder is a plurality of and a plurality of pelletization cylinders are fixed on same ring carrier, still welds the cross support in the ring carrier, and a plurality of pelletization cylinders are along ring carrier's circumference evenly distributed, and the welding of ring carrier bottom has a short rotation axis, and this short rotation axis is connected with a rotating electrical machines. Through rotatory, when making the pelletization, after the material got into a pelletization cylinder, another cylinder of treating the pelletization of screw in to improve work efficiency.
Preferably, a particle temporary storage chamber is arranged in each second shell and corresponds to the outer lower part of the granulating cylinder, and cold air is introduced into the particle temporary storage chamber.
In the invention, dry density of calcium bentonite is 1.75g/cm, double-cropping rice wheat stone powder is 2.5g/cm, relative density of gelatin is 1.3-1.4 g/cm, and double-cropping aquatic plant seeds is 0.8-0.9 g/cm. Gelatin, which is easily dissolved in warm water and cooled to gel state; the xanthan gum is white or light yellow powder, and has thickening property, suspension property, emulsifying property and water solubility, wherein the xanthan gum has good suspension effect on insoluble solids and oil drops, and the xanthan gum has higher viscosity. Based on the principle that the smaller the density difference between the particles and the fluid, the smaller the sedimentation velocity of the particles, the inventor finds that after mixing the raw materials of the invention, the composition stratification is realized after passing through a vertical flow channel with a certain length (6-10 cm) at 50-70 ℃, namely, the heavy phase is below and the light phase is above. The inventor adopts the formula of the invention and can prepare granules with density difference from top to bottom through the granulating equipment of the invention, and the granules containing the aquatic plant seeds are planted into sludge under a large water surface with water, so that the seeds are easier to be planted and rooted compared with the seeds directly sowed, and the seeds are on the granules, so that the seeds are more beneficial to breaking and restraining to germinate and root.
Compared with the prior art, the invention has the beneficial effects that:
1. the aquatic plant seeds are mixed with other raw materials, and the underwater sowing is carried out in a particle form with a certain weight, so that the seeds are easier to enter underwater silt and root compared with the method of directly sowing the aquatic plant seeds in a scattering way;
2. according to the invention, through reasonable formula selection and arrangement of the granulating cylinder, the extruding channel and the like, fluid materials can be fed into each granulating channel under the condition of extrusion, and are layered in the granulating channel, namely, the component with large density difference with water is high in descending speed, the component with small density difference is low in descending speed, water drop-shaped granules with light upper part and heavy lower part are formed after passing through the granulating channel with a certain length, and then the granules with density difference of light upper part and heavy lower part are cut by a cutting knife under the condition of rapid cooling and air drying, so that the granules with density difference of light upper part and heavy lower part are prepared
3. The granulating equipment integrates the procedures of mixing, granulating and the like into one equipment, has strong procedure continuity and reduces the floor area of the equipment;
4. the structural design is reasonable, and the soil breaking germination rate of the large-water-surface submerged plant seed particles is improved to a certain extent (compared with direct broadcast sowing, the soil breaking germination rate is improved by about 20%).
Drawings
FIG. 1 is a schematic structural diagram of the present invention
FIG. 2 is an enlarged view of part A of FIG. 1
Fig. 3 is a top view of the position relationship structure of the granulating cylinder and the cutting knife according to the present invention.
Detailed Description
The invention will now be further elucidated with reference to the drawing. The following are only preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any equivalent or similar substitutes should fall within the scope of protection of the invention without departing from the inventive concept. And the details thereof are not described below with reference to the prior art.
First, to explain, the granulation apparatus of the present invention, as shown in fig. 1 to 3, comprises a cylindrical first housing 1, a second housing 17, a tapered lower hopper 2 fixed to the top of the first housing 1 by welding, the inner part of the lower hopper 2 communicating with the inner part of the first housing 1; the first shell 1 is internally divided into a first mixing area 1.1 and a second mixing area 1.2 from top to bottom in sequence, and the blanking hopper 2 is communicated with the first mixing area 1.1; the first shell 1 between the first mixing area 1.1 and the second mixing area 1.2 is fixed with a flap valve 3, namely one end of the flap valve is fixed on the wall of the first shell 1 through a rotary bearing and a bearing seat, the other end of the flap valve 3 extends out of the first shell and is fixed with an operating handle in a welding way after extending out of the wall of the first shell 1, the other end of the flap valve 3 penetrates out of the first shell and is fixed with the first shell through the rotary bearing and the bearing seat, and the material flows from the first mixing area 1.1 to the second mixing area 1.2 or the material is prevented from flowing from the first mixing area 1.1 to the second mixing area 1.2 through the opening or closing of the flap valve 3; a funnel-shaped discharge port is formed at the inner bottom of the second mixing zone 1.2 by welding a steel plate, a blanking pipeline 4 is connected at the bottom of the second mixing zone 1.2 in a welding manner, the interior of the blanking pipeline 4 is communicated with the interior of the second mixing zone 1.2, a first valve 5 is fixed on the blanking pipeline 4 through a flange, the bottom end of the blanking pipeline 4 is connected and communicated with the front end of a lower extrusion channel 6 in a welding manner, the extrusion channel 6 is a cylindrical structure formed by welding a plurality of stainless steel plates, the front end of the extrusion channel 6 is designed into a horn shape, the extrusion channel 6 is welded in the first shell 1 through a bracket, the extrusion channel 6 is a transverse channel and is positioned below the second mixing zone 1.2, a hole is formed at the rear end of the extrusion channel 6, a piston rod of a first cylinder penetrates into the extrusion channel 6 from the hole and is welded at the rear end of the extrusion channel 6, the rear end of the extrusion channel 6 is provided with a hole in a closed manner by the first cylinder, the front end of the piston rod 7 is fixed with a piston 8 through a screw, the piston 8 is positioned in the extrusion channel 6 and is matched with the extrusion channel 6 in a matching manner, the outlet of the extrusion channel 6 is positioned at the bottom of the front end of the extrusion channel 6, a section of vertically arranged feeding pipe 9 is connected to the outlet of the extrusion channel 6 in a welding manner, and the upper part of the feeding pipe 9 is fixed with a second valve 10 through a flange;
a circular material distributing part 15 is connected below the feeding pipe 9 in a welding mode, the circular material distributing part 15 is of a hollow cylinder structure with a plurality of through holes at the bottom and is welded on the corresponding position of the inner wall of the first shell 1 at the periphery, the interior of the feeding pipe 9 is communicated with the hollow interior of the circular material distributing part 15, the bottom of the first shell 1 extends to a position 3-5cm out of the bottom of the circular material distributing part 15, a granulating area is arranged below the circular material distributing part 15, the through holes formed at the bottom of the circular material distributing part 15 are used for being communicated with granulating channels 11.1 of the granulating cylinders 11 in a one-to-one correspondence mode, a plurality of granulating cylinders 11 are arranged at the granulating area, the granulating cylinders 11 are fixed on the same annular supporting frame 18 through bolts, a cross-shaped support 19 is welded in the annular supporting frame 18, the plurality of granulating cylinders 11 are uniformly distributed along the circumference of the annular supporting frame 18, a short rotating shaft is welded at the bottom of the annular supporting frame 18, the short rotating shaft is connected with a rotating motor 20 in a key fixing mode; each granulating cylinder 11 is provided with a plurality of granulating channels 11.1 which vertically penetrate through the granulating cylinders 11, the length of each granulating channel 11.1 is controlled to be 6-8cm, a cutting knife 12 is fixed below each granulating cylinder 11, one side of each cutting knife 12 is connected with a telescopic rod end of a cutting air cylinder 21 in a welding mode or in a key connection mode, the cutting knife 12 is driven by the cutting air cylinder 21 to cut in parallel from one side to the opposite side of the corresponding granulating cylinder 11, and at a certain moment, the first shell 1 is positioned right above one granulating cylinder 11 and ensures that the granulating channels 11.1 on the granulating cylinders 11 are vertically corresponding to circulation holes on the bottoms of the circular distributing parts 15 one by one; a cylindrical second shell 17 is fixedly welded on the periphery of each granulating cylinder 11, a bulge is formed outwards on the second shell 17 at the position corresponding to the cutting knife 12, and the cutting air cylinder is fixed on the inner wall of the bulge of the second shell 17 through bolts; the bottom of the cylindrical second shell 17 with the bottom extends downwards to extend out of the bottom of the granulating cylinder 11 for a certain distance to form a particle temporary storage chamber 22, the bottom of one side of the particle temporary storage chamber 22 is connected and communicated with a cold air inlet pipe 13 in a conventional manner, and the upper part of the other side of the particle temporary storage chamber is also connected and communicated with an air outlet pipe 14 in a conventional manner. In order to fully form the particles, the height of the particle temporary storage chamber 22 is designed to be a high point (about 1.5-2 m). In practice, a support rail for the annular support frame 18 to slide annularly may be designed below the annular support frame 18, and a plurality of sliding blocks adapted to fit with the support rail may be fixed at the bottom of the annular support frame 18 by bolts.
The wall of the first shell 1 is of a sandwich structure, heat insulation cotton is filled in the sandwich structure, heating resistance wires are fixed on the inner wall of the first shell 1 and correspond to the first mixing area 1.1, the second mixing area 1.2, the stainless steel blanking pipeline 4, the stainless steel extrusion channel 6 and the stainless steel feeding pipe 9 respectively, and the heating resistance wires 16 are embedded in the granulation cylinder 11 and around each granulation channel 11.1 so as to ensure that the temperature in the first mixing area 1.1, the second mixing area 1.2, the blanking pipeline 4, the extrusion channel 6, the feeding pipe 9 and the granulation channel 11.1 is 50-70 ℃. The granulation apparatus of the present invention can be cleaned by high pressure saturated steam.
Example one
The aquatic plant seed particles of the embodiment are prepared by mixing the following raw materials in percentage by weight: 15 percent of 100-mesh 200-mesh calcium bentonite; 35% of 30-80 mesh medical stone powder; 4% of gelatin; 6% of xanthan gum; 8% of aquatic plant seeds with the particle size of less than 0.1 cm; 32% of water.
The preparation method comprises the following steps: the aquatic plant seed particles are prepared by firstly fully mixing bentonite, stone powder and aquatic plant seeds in a first mixing area 1.1, then adding all normal-temperature water, fully and uniformly stirring, then heating to 50-70 ℃, then preserving heat, adding gelatin which is preheated and dissolved into a colloid state on the basis of heat preservation, fully and uniformly stirring, wherein in the process, a flap valve is closed, and after mixing for a period of time, the flap valve is opened, fluid flows into a second mixing area, and mixing is carried out according to a conventional method (a stirring paddle which is vertically fixed in the first mixing area and a stirring paddle which is horizontally fixed in the second mixing area according to a conventional method) when mixing, wherein the first valve is closed; after the second mixing is completed, the first valve and the second valve are opened, the piston rod drives the piston to move, the fluid is extruded into the granulating channels 11.1 of one granulating cylinder 11 located in the granulating area (i.e. the working position), and then the rotating motor 19 drives the annular supporting frame 18 to rotate, so as to drive the next granulating cylinder 11 to enter the working position. The fluid flows downwards to the bottom of the granulating channel through the granulating channel 11.1, then is solidified under the drying of cold air at the temperature of 8-15 ℃, the cutting air cylinder is started, the cutting knife is driven to act, and the water-drop-shaped granules are cut and discharged from the granulating cylinder to finish the granulation.
Example two
The following differences are the same as in the first embodiment:
the aquatic plant seed particles of the embodiment are prepared by mixing the following raw materials in percentage by weight: 20% of bentonite; 40% of stone powder; 6% of gelatin; 2% of xanthan gum; 5% of aquatic plant seeds with the particle size of less than 0.1 cm; and 27% of water.
EXAMPLE III
The following differences are the same as in the first embodiment:
the aquatic plant seed particles of the embodiment are prepared by mixing the following raw materials in percentage by weight: 20% of bentonite; 35% of stone powder; 6% of gelatin; 2% of xanthan gum; 5% of aquatic plant seeds with the particle size of less than 0.1 cm; 32% of water.
Claims (6)
1. The aquatic plant seed particle is characterized by being prepared by mixing the following raw materials in percentage by weight:
10-20% of bentonite, wherein the particle size of the bentonite is controlled to be 100-200 meshes;
30-45% of stone powder, and the particle size of the stone powder is controlled to be 30-80 meshes;
3-10% of gelatin;
2-6% of xanthan gum;
5-8% of aquatic plant seeds with the particle size of less than 0.1 cm;
20-40% of water;
the production method comprises the steps of fully mixing bentonite, stone powder and aquatic plant seeds, adding normal-temperature water, fully stirring uniformly, heating to 50-70 ℃, preserving heat, adding gelatin which is heated and dissolved into a colloid form on the basis of heat preservation, fully stirring uniformly, cooling and granulating to obtain the product, wherein the cooling and granulating are carried out in granulation equipment; the granulating equipment comprises a vertical first shell, a blanking hopper is fixed at the top of the first shell, the first shell is internally divided into a first mixing area and a second mixing area from top to bottom in sequence, a flap valve is fixed between the first mixing area and the second mixing area, the material flows from the first mixing area to the second mixing area or is prevented from flowing from the first mixing area to the second mixing area by opening or closing the flap valve, and the bottom of the first shell extends to the lower part of the second mixing area; mixing the district below at the second and being fixed with the pelletization district, the pelletization district is fixed with the pelletization cylinder, sets up a plurality of pelletization passageways that link up the pelletization cylinder from top to bottom on the pelletization cylinder, is fixed with a cutting knife on every pelletization cylinder below upper portion, and cutting knife one side is connected with the cutting cylinder, and the cutting cylinder drives the cutting knife and carries out parallel cut from corresponding pelletization cylinder one side to the offside, has the second shell at every pelletization cylinder periphery welded fastening.
2. The aquatic plant seed particle of claim 1, prepared by mixing the following raw materials in percentage by weight:
20% of bentonite;
40% of stone powder;
6% of gelatin;
2% of xanthan gum;
5% of aquatic plant seeds with the particle size of less than 0.1 cm;
and 27% of water.
3. The aquatic plant seed particle of claim 1, wherein the bentonite is a calcium bentonite; the stone powder is Maifanitum powder.
4. The aquatic plant seed particle of claim 1, wherein the bottom discharge port of the second mixing region is funnel-shaped, a discharging pipe is connected to the bottom of the second mixing region, the discharging pipe is communicated with the second mixing region, a first valve is fixed on the discharging pipe, the bottom end of the discharging pipe is connected and communicated with the front end of a lower extrusion channel, the extrusion channel is a transverse channel and is fixed between the second mixing region and the granulation region, a piston rod is fixed in the extrusion channel, a piston is fixed at one end of the piston rod, the piston is located in the extrusion channel, an outlet of the extrusion channel is connected with a section of feeding pipe, a plurality of discharging holes corresponding to the granulation channels on the granulation cylinder one by one are formed at the bottom of the feeding pipe, a second valve is fixed at the upper part of the feeding pipe, a circular distributing member is connected and communicated with the bottom of the feeding pipe, the circular distributing member is hollow cylindrical, and a plurality of discharging holes corresponding to the upper and lower parts of the granulation channels on the granulation cylinder are formed at the bottom of the circular distributing member A corresponding flow hole, and the bottom of the first shell extends to the position 3-5cm below the bottom of the circular distributing part.
5. The aquatic plant seed granule of claim 4, wherein the plurality of granulation cylinders are fixed on a same ring-shaped support frame, the cross-shaped support frame is welded inside the ring-shaped support frame, the plurality of granulation cylinders are uniformly distributed along the circumference of the ring-shaped support frame, and a short rotating shaft is welded at the bottom of the ring-shaped support frame and is connected with a rotating motor.
6. The aquatic plant seed pellet of claim 5 wherein a pellet holding chamber is provided in each second housing inwardly corresponding to the outer lower portion of the pelletization cylinder, and wherein cold air is introduced into the pellet holding chamber.
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