A fluid bed granulator

Abstract

The utility model relates to the technical field of granulator, concretely relates to a boiling drying granulator, including the granulation jar, the top of granulation jar is detachably installed with the top cover, the bottom fixed mounting of granulation jar has the unloading pipe, is fixedly installed with the unloading valve on the unloading pipe, the inside positive center position department of granulation jar is provided with the spray head for spraying binder, and one side of granulation jar is provided with the air inlet cover, and the fan is fixedly installed in the inside of air inlet cover, and the air outlet end fixed mounting of air inlet cover has the gas pipe, and the tail end fixed mounting of gas pipe has the temperature control electric heater, and the air outlet end fixed mounting of temperature control electric heater has the heat preservation pipe, and a plurality of vertical air outlet pipes are fixedly installed on the bottom end pipe body of heat preservation pipe, and vertical air outlet pipe is located in the granulation jar, the utility model discloses convenient to carry out drying granulation operation, has the advantage that guarantees the even distribution of hot air in the jar.

Description

Technical Field

[0001] This utility model relates to the field of granulator technology, and more specifically, to a fluidized bed dryer granulator. Background Technology

[0002] Fluidized bed dryer granulator is an integrated equipment that combines material drying and granulation processes. It uses hot air to make the material boil in a fluidized bed, while simultaneously spraying in a binder for granulation. It has advantages such as high efficiency and uniform particle size, and is widely used in pharmaceutical, food, chemical and other fields. In the production process, the degree of material drying, particle size distribution, energy consumption and automation level of the equipment directly affect product quality and production efficiency.

[0003] Utility model patent CN206392009U discloses a fluidized bed dryer granulator, comprising: a top hopper, a hopper, and a bottom hopper. The top hopper is detachably and sealingly installed on top of the hopper, and the bottom hopper is detachably and sealingly installed on the bottom of the hopper. Sealing devices are provided between the top hopper and the hopper, and between the bottom hopper and the hopper, including an upper sealing ring and a lower sealing ring that mates with the upper sealing ring. The upper sealing ring has several evenly arranged hard sealing protrusions on its sealing surface, and the lower sealing ring has several evenly arranged elastic sealing grooves on its sealing surface. The sealing protrusions are inserted into the elastic sealing grooves to form a sealing ring. The technical objective of this utility model is to provide a fluidized bed dryer granulator with better sealing between the hopper and the bottom hopper, and between the hopper and the top hopper.

[0004] While the aforementioned technical solutions have their advantages, most fluidized bed dryer granulators still have some shortcomings in use. Because fluidized bed dryer granulators require the introduction of hot air during operation, most conventional dryer granulators use a single-path hot air supply, resulting in uneven distribution within the granulation tank. This leads to unstable material boiling states, easily causing localized over- or under-drying, affecting the consistency of particle quality. Therefore, we propose a fluidized bed dryer granulator. Utility Model Content

[0005] The purpose of this invention is to provide a fluidized bed dryer granulator to address the deficiencies mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A fluidized bed dryer granulator includes a granulation tank. A top cover is detachably installed on the top of the granulation tank, and a discharge pipe is fixedly installed on the bottom of the granulation tank. A discharge valve is fixedly installed on the discharge pipe. A nozzle for spraying adhesive is located at the center of the interior of the granulation tank. An air inlet hood is located on one side of the granulation tank. A fan is fixedly installed inside the air inlet hood. A gas pipe is fixedly installed at the outlet end of the air inlet hood. A temperature-controlled electric heater is fixedly installed at the end of the gas pipe. An insulation pipe is fixedly installed at the outlet end of the temperature-controlled electric heater. Multiple vertical air outlet pipes are fixedly installed on the bottom end of the insulation pipe, and the vertical air outlet pipes are located inside the granulation tank.

[0008] Preferably, the top cover is flange-connected to the granulation tank, and a feed pipe is fixedly installed on the top cover;

[0009] This feature facilitates the installation and removal of the top cover.

[0010] Preferably, an exhaust pipe is also fixedly installed on the top cover, and a raw material blocking mesh is fixedly installed on the inner wall of the exhaust pipe, the cross-section of the raw material blocking mesh being V-shaped;

[0011] This feature can prevent raw materials from being blown out of the exhaust pipe.

[0012] Preferably, the granulation tank is externally equipped with a delivery pump and an adhesive storage tank, the delivery pump and the adhesive storage tank are connected by a suction pipe, and the nozzle is connected to the delivery pump by a liquid outlet pipe.

[0013] Preferably, the vertical air outlet pipe is arranged vertically downwards and is located near the bottom wall of the granulation tank;

[0014] This setting makes the airflow more even and also reduces the likelihood of raw materials entering the vertical air outlet duct.

[0015] Preferably, the inner wall of the air intake hood is provided with a coarse filter, a fine filter, an antibacterial filter and an activated carbon adsorption layer from the outside to the inside.

[0016] Preferably, the end of the gas pipe is installed at the air inlet end of the housing of the temperature-controlled electric heater, and the heat insulation pipe is installed at the air outlet end of the housing of the temperature-controlled electric heater.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model, by setting up multiple vertical air outlet pipes, in conjunction with temperature-controlled electric heaters and heat-insulating pipes, allows hot air to enter the bottom of the granulation tank evenly through multiple channels, achieving uniform distribution of hot air in the tank, avoiding unstable material boiling caused by single-path entry, preventing local over- or under-drying, and ensuring the consistency of granule quality.

[0019] 2. This utility model connects the top cover to the flange of the granulation tank, which facilitates quick disassembly of the top cover for internal cleaning and component maintenance, reducing maintenance time and costs; the multi-layer filter screen in the air inlet hood filters the air in sequence to ensure that the incoming hot air is clean and avoids impurities from contaminating the material, thereby improving the convenience of equipment maintenance and the purity of the material.

[0020] 3. This utility model effectively intercepts material particles carried out by the airflow through the V-shaped raw material blocking net in the exhaust pipe, preventing raw material waste; the conveying pump delivers the adhesive in the adhesive storage tank to the nozzle through the liquid outlet pipe, ensuring a stable supply of adhesive, and with the uniform distribution of hot air, improves the granulation effect, thereby improving the utilization rate of raw materials and the granulation quality. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is one of the partial structural schematic diagrams of this utility model;

[0023] Figure 3 This is a second schematic diagram of a partial structure of this utility model;

[0024] The meanings of the labels in the diagram are as follows:

[0025] 1. Granulation tank; 10. Discharge pipe; 11. Discharge valve; 12. Top cover; 13. Feed pipe; 14. Exhaust pipe; 141. Raw material blocking net;

[0026] 2. Transfer pump; 20. Discharge pipe; 21. Nozzle; 22. Suction pipe; 23. Adhesive storage tank;

[0027] 3. Air intake hood; 30. Fan; 31. Activated carbon adsorption layer; 32. Antibacterial filter; 33. Fine filter; 34. Coarse filter; 35. Gas pipe; 36. Temperature-controlled electric heater; 37. Insulation pipe; 38. Vertical air outlet pipe. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-3 This utility model provides a technical solution: a fluidized bed dryer granulator, including a granulation tank 1, a top cover 12 detachably installed on the top of the granulation tank 1, a discharge pipe 10 fixedly installed on the bottom of the granulation tank 1, a discharge valve 11 fixedly installed on the discharge pipe 10, and the bottom of the granulation tank 1 is funnel-shaped, which facilitates normal discharge operation.

[0030] like Figure 1 As shown, a nozzle 21 for spraying adhesive is located at the center of the granulation tank 1. An air inlet hood 3 is located on one side of the granulation tank 1. A fan 30 is fixedly installed inside the air inlet hood 3. A gas pipe 35 is fixedly installed at the outlet end of the air inlet hood 3. A temperature-controlled electric heater 36 is fixedly installed at the end of the gas pipe 35. The temperature-controlled electric heater 36 is used for heating. An insulation pipe 37 is fixedly installed at the outlet end of the temperature-controlled electric heater 36. Multiple vertical air outlet pipes 38 are fixedly installed on the bottom end of the insulation pipe 37. The vertical air outlet pipes 38 are located inside the granulation tank 1 and are arranged vertically downwards. The vertical air outlet pipes 38 are located near the bottom wall of the granulation tank 1. The heating of the temperature-controlled electric heater 36 and the insulation pipes 37 reduce heat loss, so that hot air enters the granulation tank 1 evenly, preventing raw materials from entering the air pipes, achieving stable boiling of materials, and ensuring drying and uniform granulation.

[0031] In this embodiment, the top cover 12 is connected to the granulation tank 1 by a flange, which facilitates quick disassembly for internal cleaning and maintenance; the top cover 12 is fixedly installed with a feed pipe 13, which facilitates the addition of raw materials, improves the ease of operation of the equipment, and reduces downtime for maintenance.

[0032] like Figure 1 and Figure 2 As shown, an exhaust pipe 14 is also fixedly installed on the top cover 12. A raw material blocking net 141 is fixedly installed on the inner wall of the exhaust pipe 14. The cross-section of the raw material blocking net 141 is V-shaped, which effectively intercepts material particles carried out by the airflow, prevents raw material waste, and ensures the air pressure balance in the tank to maintain normal boiling state.

[0033] like Figure 1As shown, the granulation tank 1 is equipped with a delivery pump 2 and an adhesive storage tank 23 on its exterior. The delivery pump 2 and the adhesive storage tank 23 are connected by a suction pipe 22, and the nozzle 21 is connected to the delivery pump 2 by a liquid outlet pipe 20 to ensure a stable supply of adhesive, so that the nozzle 21 can spray evenly and improve the quality of granulation.

[0034] Specifically, the inner wall of the air intake hood 3 is provided with a coarse filter 34, a fine filter 33, an antibacterial filter 32 and an activated carbon adsorption layer 31 arranged sequentially from the outside to the inside. The coarse filter 34, the fine filter 33, the antibacterial filter 32 and the activated carbon adsorption layer 31 are all detachably connected to the air intake hood 3 by multiple fastening screws, so as to perform multi-stage filtration and purification of the incoming air, remove impurities, bacteria and odors, avoid contaminating materials and ensure product purity.

[0035] Furthermore, the end of the gas pipe 35 is installed at the air inlet of the housing of the temperature-controlled electric heater 36, and the heat-insulating pipe 37 is installed at the air outlet of the housing of the temperature-controlled electric heater 36, so that the air is heated and quickly delivered to the granulation tank 1, reducing heat loss and improving energy utilization efficiency.

[0036] Finally, it should be noted that the temperature-controlled electric heater 36, the delivery pump 2, the fan 30, the corresponding control system, and the external power supply involved in this utility model are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the matching controller and power supply, are connected by wires. The specific connection method should refer to the working principle in this utility model. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.

[0037] When using the fluidized bed dryer of this utility model, the top cover 12 is opened to check the inside of the granulation tank 1. After closing, the raw material is added through the feed pipe 13. The fan 30 is started. The air is filtered through the coarse filter 34, fine filter 33, antibacterial filter 32 and activated carbon adsorption layer 31 of the air inlet hood 3. It is then sent to the temperature-controlled electric heater 36 for heating through the gas pipe 35. The air then enters the granulation tank 1 through multiple vertical air outlet pipes 38 through the heat preservation pipe 37, so that the raw material is in a boiling state.

[0038] When the delivery pump 2 is started, the adhesive in the adhesive storage tank 23 is sent to the nozzle 21 through the suction pipe 22 and the liquid outlet pipe 20. After spraying, it combines with the raw material to granulate. During the process, the V-shaped raw material blocking net 141 of the exhaust pipe 14 intercepts the particles carried out and maintains the air pressure balance.

[0039] After granulation is completed, turn off the blower 30 and the conveying pump 2, open the discharge valve 11, and the granules are discharged from the discharge pipe 10. Finally, remove the top cover 12 to clean the inside and complete the operation.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fluidized bed dryer granulator, comprising a granulation tank (1), characterized in that: The top of the granulation tank (1) is detachably fitted with a top cover (12), and the bottom of the granulation tank (1) is fixedly fitted with a discharge pipe (10). A discharge valve (11) is fixedly fitted on the discharge pipe (10). A nozzle (21) for spraying adhesive is provided at the center of the inside of the granulation tank (1). An air inlet hood (3) is provided on one side of the granulation tank (1). A fan (30) is fixedly fitted inside the air inlet hood (3). A gas pipe (35) is fixedly fitted at the air outlet end of the air inlet hood (3). A temperature-controlled electric heater (36) is fixedly fitted at the end of the gas pipe (35). A heat-insulating pipe (37) is fixedly fitted at the air outlet end of the temperature-controlled electric heater (36). Multiple vertical air outlet pipes (38) are fixedly fitted on the bottom end of the heat-insulating pipe (37). The vertical air outlet pipes (38) are located inside the granulation tank (1).

2. The fluidized bed dryer and granulator according to claim 1, characterized in that: The top cover (12) is flanged to the granulation tank (1), and a feed pipe (13) is fixedly installed on the top cover (12).

3. The fluidized bed dryer and granulator according to claim 1, characterized in that: An exhaust pipe (14) is also fixedly installed on the top cover (12), and a raw material blocking net (141) is fixedly installed on the inner wall of the exhaust pipe (14). The cross-section of the raw material blocking net (141) is V-shaped.

4. The fluidized bed dryer and granulator according to claim 1, characterized in that: The granulation tank (1) is equipped with a delivery pump (2) and an adhesive storage tank (23) on its exterior. The delivery pump (2) and the adhesive storage tank (23) are connected by a suction pipe (22), and the nozzle (21) is connected to the delivery pump (2) by a liquid outlet pipe (20).

5. The fluidized bed dryer and granulator according to claim 1, characterized in that: The vertical air outlet pipe (38) is arranged vertically downwards and is located near the bottom wall of the granulation tank (1).

6. The fluidized bed dryer and granulator according to claim 1, characterized in that: The inner wall of the air intake hood (3) is provided with a coarse filter (34), a fine filter (33), an antibacterial filter (32), and an activated carbon adsorption layer (31) from the outside to the inside.

7. The fluidized bed dryer and granulator according to claim 1, characterized in that: The end of the gas pipe (35) is installed at the air inlet of the housing of the temperature-controlled electric heater (36), and the heat-insulating pipe (37) is installed at the air outlet of the housing of the temperature-controlled electric heater (36).

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