Microcapsule spray fluidization granulation equipment

Abstract

The utility model discloses micro-capsule spray fluidization granulation equipment which comprises a fluidization tower mechanism, a main cyclone separator, a main dust remover, a heat supply fan, a fluidized bed mechanism, a cooling cyclone separator, a screening machine, a micro-capsule stock bin, a fluidization powder removing machine, a powder removing dust remover, a powder stock bin and a main powder inlet fan, an atomizing nozzle is arranged on the upper portion of an inner cavity of the main tower, a heat supply fan is connected with the upper portion of the main tower through a pipeline, the atomizing nozzle is communicated with a feed liquid tank through a pipeline, powder is stored in a powder bin, and the powder is conveyed to the upper portion of the main tower through a main powder inlet fan; the multi-layer fluidized bed is fixed at the lower part of the main tower and is communicated with an inner cavity of the main tower, and the fluidization fan is connected with a tank body of the fluidization heat source through a pipeline and is connected with the interior of the multi-layer fluidized bed. The finished product particles are uniform and solid spherical particles with good roundness, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to microcapsule spray fluidization granulation equipment. Background Art

[0002] The microcapsule spray fluidized granulation drying tower combines centrifugal atomization and fluidized bed drying technology, making the particle shape, size and specific gravity easy to control. The equipment is simple to operate, low in cost, with a wide variety of wall materials to choose from, good product quality, and can embed heat-sensitive substances or easily oxidizable materials, with a large embedding volume, high production capacity, simple process, and suitable for batch or continuous, automated industrial production. Microcapsule embedding technology is a high-efficiency technology widely used in the fields of medicine, food, pesticides, feed, cosmetics, dyes, biochemical engineering, etc., which can be used to embed, deliver and release one or more core materials (active ingredients, drugs, cells, probiotics, etc.), and has solubilization, stabilization, protection, sustained release and targeting effects on the embedded core materials, thereby improving the application range and performance of the core materials.

[0003] The preparation of microcapsule particles includes two basic processes: preparing a mixed emulsion of core material and wall material to ensure that the core material can be evenly distributed in the solution of the wall material. The emulsion is spray-dried and starch-encapsulated in a dryer to form microcapsule droplets. The core material is usually spices, medicines, vitamin oils, etc.; the wall material is often selected from food-grade colloids, such as gelatin, gum arabic, modified starch, protein, fiber ester, etc. The encapsulated powder material is usually fine powder such as corn starch, soluble modified starch, maltodextrin, etc. At present, most microcapsule particles are prepared by high tower, high temperature, secondary encapsulation molding and other equipment. The uneven size of the particles, uncontrollable specific gravity, uncontrollable encapsulation amount, etc., result in quality degradation and fail to meet standardization requirements. Summary of the invention

[0004] The utility model aims to provide a spray fluidized granulation device with uniform finished product particles and improved product quality.

[0005] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is: a microcapsule spray fluidized granulation equipment, including a fluidized tower mechanism, a main cyclone separator, a main dust collector, a hot air blower, a fluidized bed mechanism, a cooling cyclone separator, a screening machine, a microcapsule silo, a fluidized powder removal machine, a powder removal dust collector, a powder silo and a main powder inlet fan, the fluidized tower mechanism includes a main tower, an atomizing nozzle and a liquid tank, an atomizing nozzle is provided at the upper part of the main tower cavity, the upper part of the main tower is connected to the upper part of the main cyclone separator through a pipeline, the upper part of the main cyclone separator is connected to the main dust collector through a pipeline, the hot air blower is connected to the upper part of the main tower through a pipeline, and the ... atomizing nozzle is provided at the upper part of the main tower cavity, the atomizing nozzle is provided at the upper part of the main tower cavity, the atomizing nozzle is provided at the upper part of the main tower cavity, the atomizing nozzle is provided at the upper part of the main tower cavity, the atomizing nozzle is provided at the upper part of the main tower cavity, The nozzle is connected to the liquid tank through a pipeline, the powder is stored in the powder silo, and the powder is transported to the upper part of the main tower through the main powder inlet fan. The fluidized bed mechanism includes a fluidizing fan, a fluidizing heat source and a multi-layer fluidized bed. The multi-layer fluidized bed is fixed at the lower part of the main tower and is connected to the inner cavity of the main tower. The fluidizing fan is connected to the tank body of the fluidizing heat source through a pipeline, and is connected to the inside of the multi-layer fluidized bed. The discharge port of the multi-layer fluidized bed is connected to the cooling cyclone separator through a pipeline, the cooling cyclone separator is connected to the screening machine, the screening machine is connected to the microcapsule silo through a pipeline, the microcapsule silo is connected to the fluidized de-powdering machine, and the fluidized de-powdering machine is connected to the de-powdering dust collector.

[0006] Preferably, the fluidized tower mechanism further includes a liquid pump and a first cooling fan. The liquid in the liquid tank is transported to the atomizing nozzle through the liquid pump, and the upper part of the main tower is also connected to the first cooling fan through a pipeline.

[0007] Preferably, it also includes a powder return cyclone separator and a powder return fan. The powder return cyclone separator is connected to the main cyclone separator, the main dust collector and the powder removal dust collector in sequence through pipelines, and is also connected to the powder bin. The powder return cyclone separator is powered by the powder return fan. The powder sieved in the main cyclone separator enters the powder return cyclone separator, enters the powder bin and circulates again.

[0008] Preferably, a dehumidifier is provided in front of the fluidizing fan, which can remove moisture from the air to ensure that the transported air is dry.

[0009] Preferably, a second cooling fan is connected to the pipeline connecting the discharge port of the multilayer fluidized bed and the cooling cyclone separator, and a cooling dehumidifier is arranged in front of the second cooling fan. The cooling dehumidifier ensures that the air is dry and free of moisture, and plays a role in cooling the particles.

[0010] Preferably, the fluidized de-powdering machine is also provided with an external fluidized heat source, and the de-powdering dust collector is also connected to an external induced draft fan through a pipeline. The external fluidized heat source heats the air transported into the fluidized de-powdering machine. The external induced draft fan can provide suction.

[0011] After adopting the above structure, the powder of the utility model is driven by the main powder inlet fan to enter the upper part of the main tower, and the liquid is sprayed out by the atomizing nozzle. In the main tower, the powder wraps the liquid to form particles, and then descends to the multi-layer fluidized bed. The downward hot air from the upper part of the main tower and the upward hot air of the multi-layer fluidized bed are offset to suspend the particles and powder in the main tower, which is more conducive to wrapping. The hot air jet diffuses to the bottom of the cone of the main tower and returns upward, so that the particles formed by drying are separated from the air. The air forms an annular wind curtain on the tower wall during the upward movement. In addition, the discharge port of the multi-layer fluidized bed is connected to the cooling cyclone separator, which separates the particles and powder. The particles enter the microcapsule silo, and a small amount of powder returns to the main cyclone separator and enters the powder silo again. The particles in the microcapsule silo are drawn into a slight negative pressure by the external induced draft fan of the external fluidized de-powdering machine and enter the fluidized de-powdering machine room. After 2-3 hours of low-temperature batch or continuous fluidized de-powdering, they are finally dried into uniform, solid, and well-rounded spherical finished particles. The utility model improves product quality and the finished product particles are uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the utility model. DETAILED DESCRIPTION

[0013] The present invention is further described in detail below with reference to the embodiments given in the accompanying drawings.

[0014] See also Figure 1 As shown, a microcapsule spray fluidized granulation equipment is required. This equipment needs to wrap the liquid feed and the powder to form spherical finished particles. Therefore, it is necessary to have a feeding device for the liquid feed and the powder feed. The liquid feed is stored in the liquid feed tank 16 and is transported to the atomizing nozzle 15 through the liquid feed pump 17. The liquid feed is sprayed into the main tower 14 of the fluidized tower mechanism 1 in the form of atomized droplets. The powder feed is stored in the powder feed bin 12 and is transported to the upper part of the main tower 14 through the pipeline by the main powder inlet fan 13. The pipeline needs to have a hot air blower 4. The hot air blower 4 includes a fan and a main heat source 25. The wind transported by the fan is heated by the main heat source 25 to ensure that the wind transported to the main tower 14 is hot air for drying. The main heat source 25 is a sealed cylinder connected to the fan, and the interior is heated by steam or electric heating wire. The hot air is hot air from top to bottom.

[0015] The fluidized bed mechanism 5 also needs hot air from bottom to top, so it needs a fluidizing fan 51 and a fluidizing heat source 52. The structure of the fluidizing heat source 52 is the same as that of the main heat source 25. In order to ensure the dryness of the air, a dehumidifier 20 is placed in front of the fluidizing fan 51. Therefore, there are two kinds of hot air in the main tower 14. Under the simultaneous action of the upward hot air and the downward hot air, most of the embedding powder is suspended in the tower, which is more conducive to embedding.

[0016] The multi-layer fluidized bed 53 is provided with a discharge port, and the liquid feed is formed into particles after being wrapped by the powder, and the material is discharged from the discharge port. The particles are screened by the cooling cyclone separator 6 to separate the particles and the powder, and the particles enter the microcapsule silo 8. A small amount of powder returns to the main cyclone separator 2 and enters the powder silo 12 again. The particles in the microcapsule silo 8 are drawn into a slight negative pressure by the external induced draft fan 21 of the external fluidized de-powdering machine 9 and enter the fluidized de-powdering machine chamber 9. After 2-3 hours of low-temperature batch or continuous fluidized de-powdering, they are finally dried into uniform, solid, and well-rounded spherical finished particles. The fluidized de-powdering machine 9 also has an external fluidized heat source 91, which has the same structure as the main heat source 25 and also plays the role of heating the air.

[0017] The upper part of the main tower 14 is connected to the upper part of the main cyclone separator 2 through a pipeline, and the upper part of the main cyclone separator 2 is connected to the main dust collector 3 through a pipeline. The main dust collector 3 is also connected to an induced draft fan. Through the action of the induced draft fan, the unprocessed powder is processed and dusted, and the powder in the main dust collector 3 and the de-powdering dust collector 10 enters the powder return cyclone separator 11 and enters the powder bin 12 for circulation again. The finished product particles produced by the utility model are uniform, and the product quality is improved.

[0018] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the protection scope of the present invention.

Claims

1. A microcapsule spray fluidized granulation device, comprising a fluidized tower mechanism (1), a main cyclone separator (2), a main dust collector (3), a hot air blower (4), a fluidized bed mechanism (5), a cooling cyclone separator (6), a sieving machine (7), a microcapsule silo (8), a fluidized powder removal machine (9), a powder removal dust collector (10), a powder silo (12) and a main powder inlet fan (13), wherein the fluidized tower mechanism (1) comprises a main tower (14), an atomizing nozzle (15) and a liquid tank (16), wherein the main tower ( 14) An atomizing nozzle (15) is provided at the upper part of the inner cavity, the upper part of the main tower (14) is connected to the upper part of the main cyclone separator (2) through a pipeline, the upper part of the main cyclone separator (2) is connected to the main dust collector (3) through a pipeline, the hot air blower (4) is connected to the upper part of the main tower (14) through a pipeline, and the atomizing nozzle (15) is connected to the liquid tank (16) through a pipeline, the powder bin (12) stores powder, and the powder is transported to the upper part of the main tower (14) through the main powder inlet fan (13), characterized in that: The fluidized bed mechanism (5) comprises a fluidizing fan (51), a fluidizing heat source (52) and a multi-layer fluidized bed (53). The multi-layer fluidized bed (53) is fixed at the lower part of the main tower (14) and is connected to the inner cavity of the main tower (14). The fluidizing fan (51) is connected to the tank body of the fluidizing heat source (52) through a pipeline and is connected to the inside of the multi-layer fluidized bed (53). The discharge port of the multi-layer fluidized bed (53) is connected to the cooling cyclone separator (6) through a pipeline. The cooling cyclone separator (6) is connected to the screening machine (7). The cooling cyclone separator (6) is connected to the microcapsule silo (8) through a pipeline. The microcapsule silo (8) is connected to the fluidized de-powdering machine (9). The fluidized de-powdering machine (9) is connected to the de-powdering dust collector (10).

2. The microcapsule spray fluidized granulation equipment according to claim 1, characterized in that: The fluidized tower mechanism (1) further comprises a liquid feed pump (17) and a first cooling fan (18); the liquid feed in the liquid feed tank (16) is transported to the atomizing nozzle (15) via the liquid feed pump (17); and the upper part of the main tower (14) is also connected to the first cooling fan (18) via a pipeline.

3. The microcapsule spray fluidized granulation equipment according to claim 1, characterized in that: The invention also comprises a powder return cyclone separator (11) and a powder return fan (27). The powder return cyclone separator (11) is connected to the main cyclone separator (2), the main dust collector (3) and the powder removal dust collector (10) in sequence through pipelines, and is also connected to the powder bin (12). The powder return cyclone separator (11) is powered by the powder return fan (27).

4. The microcapsule spray fluidized granulation equipment according to claim 1, characterized in that: A dehumidifier (20) is also provided in front of the fluidizing fan (51).

5. The microcapsule spray fluidized granulation equipment according to claim 1, characterized in that: A second cooling fan (55) is also connected to the pipeline connecting the discharge port of the multi-layer fluidized bed (53) and the cooling cyclone separator (6), and a cooling dehumidifier (54) is provided in front of the second cooling fan (55).

6. The microcapsule spray fluidized granulation equipment according to claim 1, characterized in that: The fluidized powder removal machine (9) is also provided with an external fluidized heat source (91), and the powder removal dust collector (10) is also connected to an external induced draft fan (21) through a pipeline.

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