Granulating device for increasing the solubility of powder materials

Abstract

The utility model relates to the field of granulating device, increase powder material solubility's granulating device, the utility model discloses a main body system, air supply system, spraying device, dust removal and exhaust system and heating and control system, the main body system includes conical fluidized chamber and quick -opening type sealing door, the quick -opening type sealing door is located at the top of conical fluidized chamber, the bottom of conical fluidized chamber is equipped with airflow distribution board, the airflow distribution board lower end is connected with the lower layer flow guide chamber, the lower layer flow guide chamber one side is connected with the air inlet chamber, the air supply system is used for airflow to send in, the spraying device includes the water storage tank, peristaltic pump, water pipeline and spraying port that connect gradually, the spraying port annularly is distributed in the upper portion of conical fluidized chamber, the dust removal and exhaust system are used for trapping fine powder, maintaining system negative pressure and discharging, the heating and control system is used for providing heat source and temperature regulation.

Description

Technical Field

[0001] This utility model relates to the field of granulation equipment, and specifically to a granulation equipment for increasing the solubility of powder materials. Background Technology

[0002] Thickeners mainly include hydrophilic colloids such as xanthan gum, carrageenan, and guar gum. Xanthan gum, also known as xanthan gum or xanthan tannin, is a high-viscosity, water-soluble microbial extracellular polysaccharide produced by *Xanthomonas auricula-judae*, a bacterium that causes black rot in *Gnaphalium affine*, using starch as the main raw material. It undergoes specific biological fermentation, followed by purification, drying, and pulverization. Carrageenan is a hydrophilic colloid, also known as agar-agar, sardine gum, or carrageenan gum, because it is extracted from red algae such as *Echinochloa crus-galli*, *Gnaphalium affine*, and *Sargassum fusiforme*. It is widely used in the manufacture of jellies, ice cream, pastries, soft candies, canned goods, meat products, eight-treasure porridge, bird's nest soup, soups, and cold dishes, among others.

[0003] Currently, the main challenges in the application of thickeners produced in normal conditions are low dissolution efficiency, poor flowability, and dust issues. Granulation can optimize the dissolution and release performance of thickeners, improve material flowability, and reduce dust pollution. However, the fluidized bed granulators currently in use suffer from uneven material fluidization leading to uneven particle size distribution, poor atomization, and low granulation efficiency. Utility Model Content

[0004] This invention addresses the problems of existing technologies by providing a granulation device that increases the solubility of powder materials.

[0005] The objective of this utility model can be achieved through the following technical solution: A granulation device for increasing the solubility of powder materials includes: a main body system, an air supply system, a spraying device, a dust removal and exhaust system, and a heating and control system. The main body system includes a conical fluidized chamber and a quick-opening sealing door. The quick-opening sealing door is located at the top of the conical fluidized chamber. An airflow distribution plate is provided at the bottom of the conical fluidized chamber. The lower end of the airflow distribution plate is connected to a lower guide cavity, and one side of the lower guide cavity is connected to an air inlet cavity. The air supply system is used to deliver airflow. The spraying device includes a water storage tank, a peristaltic pump, a water pipe, and spray nozzles connected in sequence. The spray nozzles are evenly distributed in a ring on the upper part of the conical fluidized chamber. The dust removal and exhaust system is used to capture fine powder, maintain negative pressure in the system, and discharge. The heating and control system is used to provide a heat source and temperature control.

[0006] In a further improvement, the air supply system includes an inlet filter and a variable frequency fan; the heating and control system includes a steam heat exchanger and an exhaust duct; the dust removal and exhaust system includes a filter bag and a silencer; the left side of the inlet filter is connected to the steam heat exchanger; the left side of the steam heat exchanger is connected to the lower guide chamber through the inlet chamber; the filter bag is located at the top of the conical fluidization chamber; the end of the filter bag is connected to one end of the variable frequency fan through the exhaust duct; and the silencer is located at the other end of the variable frequency fan.

[0007] Further improvements include an observation window located on the side wall of the conical fluidization chamber, the inner surface of which is mirror-polished; and a quick-opening sealing door using a combination of a pneumatic locking device and a fluororubber sealing ring.

[0008] In a further improvement, the airflow distribution plate is a multi-layer composite structure, including multiple sets of upper stainless steel screens with a pore size of 0.3 mm and an opening rate of 15%.

[0009] In a further improvement, the spray nozzles are arranged in a ring array of four groups.

[0010] Further improvements include a peristaltic pump with a frequency adjustment range of 5-50Hz.

[0011] As a further improvement, the heating and control system also includes a temperature sensor located at the outlet of the steam heat exchanger and the inlet of the exhaust pipe.

[0012] As a further improvement, the dust removal and ventilation system also includes a pulse backflushing mechanism, the outlet of which is located inside the filter bag.

[0013] Compared with the prior art, the beneficial effects of this granulation device for increasing the solubility of powder materials are as follows: The multi-layered screens inside the airflow distribution plate, combined with the guide cavity, prevent particle size differences caused by uneven airflow distribution; the annular spray nozzle achieves full atomization coverage, solving the problem of poor atomization effect; the granulated thickener particles have significantly improved fluidity and can disperse quickly during dissolution, solving the problem of low dissolution efficiency of conventional powders; the surface polishing treatment of the conical fluidization chamber reduces material adhesion; and the closed continuous operation improves work efficiency, avoids more dust generated on site, and improves the quality of the working environment. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of the present invention. Figure 2 This is a schematic diagram of the structure of the four sets of spray nozzles in the granulation device of this utility model. In the diagram, 1-conical fluidization chamber, 2-observation window, 3-quick-opening sealing door, 4-airflow distribution plate, 5-lower flow guide cavity, 6-inlet air filter, 7-variable frequency fan, 8-water storage tank, 9-peristaltic pump, 10-water pipe, 11-spray nozzle, 12-filter bag, 13-pulse backflushing mechanism, 14-silencer, 15-steam heat exchanger, 16-temperature sensor, 17-exhaust duct. Detailed Implementation

[0015] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; unless otherwise expressly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, they can refer to fixed connections or detachable connections, etc. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0016] The following is a description of the embodiments and appendices. Figures 1-2 The technical solution of this utility model will be further described below.

[0017] Example 1 A granulation device for increasing the solubility of powder materials includes a main body system, an air supply system, a spraying device, a dust removal and exhaust system, and a heating and control system. The main body system includes a conical fluidized chamber 1 and a quick-opening sealing door 3. The quick-opening sealing door 3 is located at the top of the conical fluidized chamber 1. An airflow distribution plate 4 is provided at the bottom of the conical fluidized chamber 1. The lower end of the airflow distribution plate 4 is connected to a lower guide cavity 5. An air inlet cavity is connected to one side of the lower guide cavity 5. The air supply system is used to supply airflow. The spraying device includes a water storage tank 8, a peristaltic pump 9, a water pipe 10, and spray nozzles 11 connected in sequence. The spray nozzles 11 are evenly distributed in a ring on the upper part of the conical fluidized chamber 1. The dust removal and exhaust system is used to capture fine powder, maintain negative pressure in the system, and discharge. The heating and control system is used to provide a heat source and regulate the temperature.

[0018] like Figures 1-2 As shown, the working principle of this utility model is as follows: The conical fluidization chamber provides a closed granulation space and is the core area for fluidization and granulation of powder materials; the quick-opening sealing door enables convenient feeding and discharging while ensuring the airtightness of the system; the airflow distribution plate is located at the bottom of the main body and is a key component connecting the air supply system and the fluidization chamber. The upper part is directly connected to the conical fluidization chamber, supporting the material and realizing airflow distribution, and the lower part is connected to the air inlet cavity to receive airflow from the fan or heating system; The variable frequency fan provides airflow power. The air first passes through the air inlet filter to remove impurities, and then is heated by the steam heat exchanger. The heated air enters the lower guide cavity for buffering and guidance, and finally is evenly dispersed into the conical fluidization chamber through the airflow distribution plate, which pushes the powder to suspend and roll. The airflow makes the material fluidized, which is convenient for subsequent spraying and bonding. The water storage tank stores the spray liquid, and the peristaltic pump steadily delivers the liquid to the water pipeline. The liquid is then atomized through the ring-shaped spray nozzles and sprayed evenly onto the surface of the fluidized powder. After the atomized droplets come into contact with the powder particles, the particles agglomerate together to form small particles. The dust-laden airflow generated during granulation is filtered by the filter bag under the negative pressure of the variable frequency fan. The filtered clean airflow is discharged through the exhaust duct, and the silencer reduces the exhaust noise. When the filter bag resistance increases, the pulse back-blowing mechanism sprays compressed air into the filter bag to shake off the attached dust.

[0019] Compared to traditional granulators, this embodiment uses an airflow distribution plate and a guide cavity to avoid particle size differences caused by uneven airflow distribution; the annular spray nozzle achieves full atomization coverage, solving the problem of poor atomization effect; the flowability of the thickener particles after granulation is significantly improved, and they can disperse quickly when dissolved, solving the problem of low dissolution efficiency of conventional powders.

[0020] As a further preferred embodiment, the air supply system includes an inlet filter 6 and a variable frequency fan 7; the heating and control system includes a steam heat exchanger 15 and an exhaust duct 17; and the dust removal and exhaust system includes a filter bag 12 and a silencer 14. The left side of the inlet filter 6 is connected to the steam heat exchanger 15, and the left side of the steam heat exchanger 15 is connected to the lower guide chamber 5 through the inlet chamber. The filter bag 12 is located at the top of the conical fluidization chamber 1, and the end of the filter bag 12 is connected to one end of the variable frequency fan 7 through the exhaust duct 17. The silencer 14 is located at the other end of the variable frequency fan 7. The inlet filter ensures material purity and avoids particle quality problems caused by impurities; the variable frequency fan improves equipment applicability, adapts to various powder materials, and reduces energy waste; the filter bag efficiently removes dust, reduces dust emissions, and meets environmental protection requirements; the silencer reduces operating noise and improves the working environment; and the complete airflow path ensures smooth airflow in the system, avoids poor local fluidization or dust accumulation, and improves granulation efficiency and stability.

[0021] As a further preferred embodiment, the main body system also includes an observation window 2 located on the side wall of the conical fluidization chamber. The observation window 2 is embedded and welded to the side of the conical fluidization chamber, allowing observation of the uniformity of the material during fluidization. The inner surface of the conical fluidization chamber 1 is mirror-polished to reduce the adhesion between the powder material and the inner wall. The quick-opening sealing door 3 adopts a combination structure of a pneumatic locking device and a fluororubber sealing ring. The synergistic design of the combination structure of the pneumatic locking device and the fluororubber sealing ring with the conical structure significantly improves sealing performance, operational efficiency, and safety.

[0022] As a further preferred embodiment, the airflow distribution plate 4 is a multi-layer composite structure, including multiple sets of upper stainless steel screens with a pore size of 0.3 mm and an opening rate of 15%. Compared with a single layer, the multi-layer structure can disperse airflow layer by layer. The first layer blocks large particles, and subsequent layers refine the airflow. Stainless steel screens typically have the characteristics of high temperature resistance and high strength, ensuring long-term stable operation.

[0023] As a further preferred embodiment, the spray nozzles 11 are arranged in a ring array of four groups. The four spray nozzles are evenly distributed in a ring, 525±10mm from the inner wall of the fluidization chamber and 650±20mm from the distribution plate. This achieves precise liquid dosing; ensures coverage without dead angles; results in more uniform material and droplet bonding; avoids particle agglomeration or excessive fine powder; and improves granulation quality.

[0024] As a further preferred embodiment, the peristaltic pump 9 has a frequency adjustment range of 5-50Hz. This adjustable frequency allows the equipment to adapt to various powder materials, improving its applicability; the flow rate can be adjusted in real time during granulation, optimizing the process based on the material's condition and reducing defective products.

[0025] As a further preferred embodiment, the heating and control system also includes a temperature sensor 16, which is located at the outlet of the steam heat exchanger 15 and the inlet of the exhaust pipe 17. Dual-position monitoring of the inlet and outlet air enables precise temperature control, ensuring that the particles are fully dried and do not deteriorate; the drying time is adjusted according to the exhaust temperature to avoid energy waste or particle damage caused by over-drying.

[0026] As a further preferred embodiment, the dust removal and ventilation system also includes a pulse backflushing mechanism 13, the outlet of which is located inside the filter bag 12. Compressed air injection is controlled by a solenoid valve. When the resistance reaches a certain level, compressed air is injected into the filter bag, creating a reverse airflow that causes the filter bag to expand and vibrate, shaking off surface dust. This automatic dust removal prevents filter bag clogging, maintains stable negative pressure in the system, and ensures continuous granulation. The dust removal and ventilation system, through its high-efficiency filtration, intelligent dust removal, and negative pressure control design, solves the problems of dust pollution and energy consumption.

[0027] The steps for using this utility model are as follows: (1) Equipment inspection: Confirm that the inner wall of the conical fluidization chamber 1, the filter bag 12 and the air inlet filter 6 are clean and free of residual materials; (2) Feeding: Open the quick-opening sealing valve 3, pull out the conical fluidization chamber, feed in the xanthan gum powder material, push it into the fluidization chamber and close the sealing valve; (3) Equipment start-up: Start the induced draft fan 7, adjust the frequency to 45Hz, and start the pulse back-blowing mechanism 13 to automatically clean the dust; (4) Spraying stage: Water in the water storage tank 8 is transported by the peristaltic pump 9, and the liquid is distributed to 4 spray nozzles 11 through the water pipe 10. The atomizing air pressure is adjusted to 0.35MPa; (5) Drying stage: During the fluidization process, the material opens the steam valve, and the air inlet temperature is controlled to 85-90℃ through the steam heat exchanger 15. The temperature sensor 16 monitors the temperature in real time. Confirm particle flowability through observation window 2 and take samples to test particle size distribution; (6) Discharge and system cleaning: After granulation, stop pulse backflushing mechanism 13, stop induced draft fan 7, open quick-opening sealing valve 3, and throw out material from conical fluidization chamber 1. After granulation, rinse water pipe 10 and spray nozzle 11, open quick-opening sealing valve 3, and manually clean dead corners.

[0028] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A granulation device for increasing the solubility of powder materials, characterized in that, The system includes a main body system, an air supply system, a spray device, a dust removal and exhaust system, and a heating and control system. The main body system includes a conical fluidized chamber and a quick-opening sealing door. The quick-opening sealing door is located at the top of the conical fluidized chamber. An airflow distribution plate is provided at the bottom of the conical fluidized chamber. The lower end of the airflow distribution plate is connected to a lower guide cavity, and one side of the lower guide cavity is connected to an air inlet cavity. The air supply system is used to deliver airflow. The spray device includes a water storage tank, a peristaltic pump, a water pipe, and spray nozzles connected in sequence. The spray nozzles are evenly distributed in a ring on the upper part of the conical fluidized chamber. The dust removal and exhaust system is used to capture fine powder, maintain negative pressure in the system, and discharge it. The heating and control system is used to provide a heat source and regulate the temperature.

2. The granulation device for increasing the solubility of powder materials according to claim 1, characterized in that: The air supply system includes an inlet filter and a variable frequency fan; the heating and control system includes a steam heat exchanger and an exhaust duct; the dust removal and exhaust system includes a filter bag and a silencer; the left side of the inlet filter is connected to the steam heat exchanger; the left side of the steam heat exchanger is connected to the lower guide chamber through the inlet chamber; the filter bag is located at the top of the conical fluidization chamber; the end of the filter bag is connected to one end of the variable frequency fan through the exhaust duct; and the silencer is located at the other end of the variable frequency fan.

3. The granulation device for increasing the solubility of powder materials according to claim 1, characterized in that: The main body system also includes an observation window located on the side wall of the conical fluidization chamber, the inner surface of which is mirror-polished; the quick-opening sealing door is configured with a combination of a pneumatic locking device and a fluororubber sealing ring.

4. A granulation device for increasing the solubility of powder materials according to claim 1, characterized in that: The airflow distribution plate has a multi-layer composite structure, including multiple sets of upper stainless steel screens with a pore size of 0.3 mm and an opening rate of 15%.

5. A granulation device for increasing the solubility of powder materials according to claim 1, characterized in that: The spray nozzles are arranged in a ring array of four groups.

6. A granulation device for increasing the solubility of powder materials according to claim 1, characterized in that: The frequency adjustment range of the peristaltic pump is 5-50Hz.

7. A granulation device for increasing the solubility of powder materials according to claim 1, characterized in that: The heating and control system also includes a temperature sensor, which is located at the outlet of the steam heat exchanger and the inlet of the exhaust pipe.

8. A granulation device for increasing the solubility of powder materials according to claim 1, characterized in that: The dust removal and ventilation system also includes a pulse backflushing mechanism, the outlet of which is located inside the filter bag.

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