CN211434204U

CN211434204U - Fluidized bed coating machine

Info

Publication number: CN211434204U
Application number: CN201922065997.XU
Authority: CN
Inventors: 高炳辉; 刘倩; 李广民; 马绍伟
Original assignee: Zhong Sha Animal Health Product Xiamen Co ltd
Current assignee: Zhong Sha Animal Health Product Xiamen Co ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-09-08
Anticipated expiration: 2029-11-26

Abstract

The utility model discloses a fluidized bed coating machine, which comprises an air inlet pipe, an air filter, a heating chamber, a cylinder body, an atomization system, a feeder, an air outlet pipe, an induced draft fan and a PLC control system, wherein the PLC control system is in communication connection with the air filter, the atomization system, the feeder and the induced draft fan and controls the work of the air filter, the atomization system, the feeder and the induced draft fan; a coating chamber is arranged in the barrel, an air flow distribution plate is arranged at the input end of the coating chamber, an ascending area, a fluidizing area and a descending area are formed in the coating chamber, the ascending area is positioned at the lower end of the coating chamber, the fluidizing area is positioned at the upper end of the coating chamber, and the descending area is positioned at the periphery of the inner side wall of the coating chamber; the air in the air inlet pipe enters the cylinder; the air filter is arranged at the air inlet of the air inlet pipe; the heating chamber is arranged at the rear end of the air filter; the atomization system is arranged at the lower part of the cylinder; the feeder is arranged on one side of the cylinder; one end of the air outlet pipe is connected with the output end of the coating chamber; the induced draft fan sets up the other end at the tuber pipe. The utility model discloses reduce the waste of capsule material, reduce the adhesion of material, and its coating is even.

Description

Fluidized bed coating machine

Technical Field

The utility model relates to a pharmaceutical equipment technical field, in particular to fluidized bed coating machine.

Background

The fluidized bed coating machine is produced by improving a drying device in the preparation industry, and the fluidized bed has the types of back mixing flow, plug flow, vibration, contact type, multilayer fluidized bed and the like; the main devices of the fluidized bed are divided into an open type and a closed circulation type. The fluidized bed adopts an atomization operation system and a coating mode to complete the granulation, the pellet preparation, the coating process and the drying process in one step in the fluidized bed, thereby reducing the energy consumption. The working principle is as follows: the air is filtered and heated and then enters a coating chamber of a cylinder body from an air flow distribution plate, particles or powder in the air flow distribution plate are suspended to form a fluidized state under the combined action of air flow pushing and self gravity, then compressed air and a coating material respectively enter a spray head from respective pipelines, the coating material is atomized into fine liquid drops at the position of the spray nozzle and sprayed on the fluidized powder, particles or pellets to be adhered and gathered to form a film, and finally, a finished product with water volatilization is taken out of the machine through exhaust air to finish the operations of coating, drying and the like.

However, when the traditional fluidized bed coating machine is used for coating organic solution, the problem that coating materials permeate into the materials exists, so that the coating materials are wasted, and the disintegration and dissolution of active ingredients are influenced; the conventional fluidized bed coating machine also has the problem of uneven coating.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the above-mentioned technology to a certain extent. Therefore, the utility model aims to provide a fluidized bed coating machine reduces the waste of capsule material, reduces the adhesion of material, and its coating is even.

In order to achieve the purpose, the embodiment of the utility model provides a fluidized bed coating machine, which comprises an air inlet pipe, an air filter, a heating chamber, a cylinder body, an atomization system, a feeder, an air outlet pipe, an induced draft fan and a PLC control system, wherein the PLC control system is in communication connection with the air filter, the atomization system, the feeder and the induced draft fan and controls the work of the air filter, the atomization system, the feeder and the induced draft fan;

a coating chamber is arranged in the barrel, an air flow distribution plate is arranged at the input end of the coating chamber, an ascending area, a fluidizing area and a descending area are formed in the coating chamber, the ascending area is positioned at the lower end of the coating chamber, the fluidizing area is positioned at the upper end of the coating chamber, and the descending area is positioned at the periphery of the inner side wall of the coating chamber;

the air inlet pipe is connected with the air flow distribution plate, and air in the air inlet pipe enters the cylinder body through the air flow distribution plate;

the air filter is arranged at an air inlet of the air inlet pipe, and the PLC control system controls the air filter to filter air;

the heating chamber is arranged at the rear end of the air filter, a heater is arranged in the heating chamber, and the heater heats the air filtered by the air filter;

the PLC control system controls the liquid to flow to the liquid spraying gun and controls the air heated by the heater to flow to the liquid spraying gun and be sprayed out;

the feeder is arranged on one side of the cylinder and provides a coating material to the lower part of the cylinder, and the coating material is atomized by liquid sprayed by the liquid spraying gun, wherein the coating material is a high molecular polymer material;

one end of the air outlet pipe is connected with the output end of the coating chamber, and the air outlet pipe is used for discharging air in the cylinder;

the induced draft fan sets up the other end at the tuber pipe, and PLC control system controls the induced draft fan and discharges the wind in the barrel through the tuber pipe.

According to the utility model discloses a fluidized bed coating machine, in operation, PLC control system control liquid flows to the hydrojet rifle, and control the air through the heater heating to hydrojet rifle and blowout, and simultaneously, the feeder provides coating material to barrel bottom, make this coating material atomizing of hydrojet rifle spun liquid, coating material after the atomizing rises to the fluidization region from the ascending region, material in the barrel, powder suspend under the effect of gravity and updraft, coating material after the atomizing is with this material, powder carries out the capsule operation, and do not use coating material to descend to the ascending region from the descending region and rise after going up, form the circulation, thereby coating material greatly practices thrift, and make the coating even; because the coating material is a high-molecular polymer material, the high-molecular polymer material can effectively reduce the adhesion of the material. Therefore, the utility model discloses reduce the waste of capsule material, reduce the adhesion of material, and its coating is even.

In addition, according to the present invention, the fluidized bed coating machine may further have the following additional technical features:

further, the whole barrel is in an inverted cone shape.

Further, air cleaner includes primary filter, well effect filter and high efficiency filter, and primary filter adopts the stainless steel filter screen to filter, and well effect filter adopts the filter cloth to filter, and high efficiency filter adopts the filter paper to filter.

Furthermore, a silencer is arranged on the induced draft fan.

Furthermore, the air filter also comprises a sound insulation wall, the cylinder body is positioned on one side of the sound insulation wall, and the air filter is positioned on the other side of the sound insulation wall.

Furthermore, the side wall of the barrel is provided with a sight glass which is convenient for observing materials in the barrel.

Further, still include the draft tube, the draft tube sets up in the barrel and is located the exit of hydrojet rifle, and the draft tube adjusts the liquid outflow direction.

Further, the liquid spraying gun is a two-fluid anti-blocking type spray gun.

Further, the top of the barrel is provided with a feed inlet, and the feed inlet is connected with the top of the barrel through a top ring.

Furthermore, the feed inlet and the top ring are sealed through an air bag sealing structure.

Drawings

Fig. 1 is a front view of a fluidized bed coater according to an embodiment of the present invention;

fig. 2 is a top view of a fluidized bed coater according to an embodiment of the present invention;

fig. 3 is a left side view of a fluidized bed coater according to an embodiment of the present invention.

Description of the reference symbols

Air inlet pipe 1 air filter 2

Heating chamber 3 barrel 4

Coating room 41 rising area 411

Fluidized zone 412 descending zone 413

Airflow distribution plate 42 atomization system 5

Air outlet pipe 6 draught fan 7

The muffler 71 gives sound insulation to the wall 8.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 3, the utility model discloses a fluidized bed coating machine of embodiment, including air-supply line 1, air cleaner 2, heating chamber 3, barrel 4, atomizing system 5, feeder, play tuber pipe 6, draught fan 7 and PLC control system, PLC control system and air cleaner 2, atomizing system 5, feeder and draught fan 7 communication connection and control its work.

A coating chamber 41 is arranged in the barrel 4, an air flow distribution plate 42 is arranged at the input end of the coating chamber 41, an ascending area 411, a fluidizing area 412 and a descending area 413 are formed in the coating chamber 41, the ascending area 411 is positioned at the lower end of the coating chamber 41, the fluidizing area 412 is positioned at the upper end of the coating chamber 41, and the descending area 413 is positioned at the periphery of the inner side wall of the coating chamber 41.

The air inlet pipe 1 is connected with an air distribution plate 42, and air in the air inlet pipe 1 enters the cylinder 4 through the air distribution plate 42; the air filter 2 is arranged at an air inlet of the air inlet pipe 1, and the PLC control system controls the air filter 2 to filter air; the heating chamber 3 is provided at the rear end of the air filter 2, and a heater is provided in the heating chamber 3 and heats the air filtered by the air filter 2.

The atomizing system 5 is arranged at the lower part of the barrel 4, the atomizing system 5 comprises a liquid spraying gun and a liquid supply pump, the liquid supply pump provides power to drive liquid to flow out, and the PLC control system controls the liquid to flow to the liquid spraying gun and controls air heated by the heater to flow to the liquid spraying gun and be sprayed out.

The feeder is arranged on one side of the cylinder 4, the feeder provides coating materials to the lower part of the cylinder 4, and the coating materials are atomized by liquid sprayed by a liquid spraying gun, wherein the coating materials are high molecular polymer materials. One end of the air outlet pipe 6 is connected with the output end of the coating chamber 41, and the air outlet pipe 6 is used for discharging air in the barrel 4; the induced draft fan 7 sets up the other end at the tuber pipe 6, and PLC control system control induced draft fan 7 discharges the wind in barrel 4 through the tuber pipe 6.

When the coating machine works, the PLC control system controls liquid to flow to the liquid spraying gun and controls air heated by the heater to flow to the liquid spraying gun and spray the air, meanwhile, the feeder supplies coating materials to the bottom of the cylinder 4, so that the liquid sprayed by the liquid spraying gun atomizes the coating materials, the atomized coating materials rise from the rising area 411 to the fluidizing area 412, the materials and powder in the cylinder 4 are suspended under the action of gravity and rising air flow, the atomized coating materials coat the materials and powder, and the coating materials which are not used rise after falling from the falling area 413 to the rising area 411 to form circulation, so that the coating materials are greatly saved, and the coating is uniform; because the coating material is a high-molecular polymer material, the high-molecular polymer material can effectively reduce the adhesion of the material. Therefore, the utility model discloses reduce the waste of capsule material, reduce the adhesion of material, and its coating is even.

In some examples, the barrel 4 is inverted cone-shaped as a whole, and the barrel 4 is inverted cone-shaped as a whole so that the ascending area 411 is located at the cone opening of the inverted cone-shaped barrel 4, thereby facilitating the coating material located in the ascending area 411 to ascend to the fluidizing area 412 for coating operation.

In some examples, the air filter 2 includes a primary filter, a secondary filter, and a high efficiency filter, the primary filter is filtered with a stainless steel filter screen, the secondary filter is filtered with a filter cloth, and the high efficiency filter is filtered with filter paper.

The primary filter adopts the stainless steel filter screen to filter, and the stainless steel filter screen carries out prefilter to the air, and well effect filter adopts the filter cloth to filter, and the filter cloth filters the air once more, and high efficiency filter adopts the filter paper to filter, and the filter paper carries out final filtration to the air, and primary filter, well effect filter and high efficiency filter have effectively filtered the air for the air in the barrel 4 meets the requirements.

In some examples, a muffler 71 is provided on the induced draft fan 7. The noise eliminator 71 can effectively reduce the noise generated by the operation of the draught fan 7 and reduce noise pollution.

In some examples, a sound-proof wall 8 is further included, the cylinder 4 being located on one side of the sound-proof wall 8, and the air filter 2 being located on the other side of the sound-proof wall 8. Because when carrying out the capsule operation in barrel 4, easily produce the noise, set up noise that produces when setting up 8 can effectively keep apart the interior capsule operation of barrel 4, further reduce noise pollution.

In some examples, the side wall of the barrel 4 is provided with a sight glass for facilitating observation of the contents of the barrel 4, which sight glass facilitates observation of the conditions within the barrel 4.

In some examples, the liquid spraying device further comprises a guide cylinder, wherein the guide cylinder is arranged in the cylinder body 4 and is positioned at an outlet of the liquid spraying gun, and the guide cylinder adjusts the liquid outflow direction. The guide cylinder in this example can be set to be a plurality of, for example five, and a plurality of guide cylinders are convenient for adjusting the liquid outflow direction to drive the coating material to distribute more evenly, make the coating material evenly carry out the coating operation to the material.

In some examples, the spray gun is a two-fluid anti-clog type spray gun. The two-fluid anti-blocking spray gun has good effective spraying effect and can effectively prevent blocking during spraying.

In some examples, the top of the barrel 4 is provided with a feed inlet, the feed inlet is connected with the top of the barrel 4 through a top ring, and the feed inlet is convenient for putting wet materials into the barrel 4. The feeding port and the top ring are sealed through the air bag sealing structure, the air bag sealing structure is good in sealing effect, air leakage is effectively prevented, and materials and hot air can be conveniently and fully mixed and contacted.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A fluidized bed coating machine is characterized in that: the air purifier comprises an air inlet pipe, an air filter, a heating chamber, a barrel, an atomization system, a feeder, an air outlet pipe, an induced draft fan and a PLC (programmable logic controller) control system, wherein the PLC control system is in communication connection with the air filter, the atomization system, the feeder and the induced draft fan and controls the work of the air filter, the atomization system, the feeder and the induced draft fan;

2. The fluid bed coater of claim 1 wherein: the whole barrel is in an inverted cone shape.

3. The fluid bed coater of claim 1 wherein: the air filter comprises a primary filter, a medium-efficiency filter and a high-efficiency filter, wherein the primary filter adopts a stainless steel filter screen for filtration, the medium-efficiency filter adopts filter cloth for filtration, and the high-efficiency filter adopts filter paper for filtration.

4. The fluid bed coater of claim 1 wherein: the draught fan is provided with a noise eliminator.

5. The fluid bed coater of claim 1 wherein: still include the sound-proof wall, the barrel is located sound-proof wall one side, and air cleaner is located sound-proof wall opposite side.

6. The fluid bed coater of claim 1 wherein: the side wall of the barrel is provided with a sight glass which is convenient for observing materials in the barrel.

7. The fluid bed coater of claim 1 wherein: the liquid spraying device also comprises a guide cylinder, wherein the guide cylinder is arranged in the cylinder body and is positioned at the outlet of the liquid spraying gun, and the guide cylinder adjusts the liquid flowing direction.

8. The fluid bed coater of claim 1 wherein: the liquid spraying gun is a two-fluid anti-blocking spray gun.

9. The fluid bed coater of claim 1 wherein: the top of the barrel is provided with a feed inlet, and the feed inlet is connected with the top of the barrel through a top ring.

10. The fluid bed coater of claim 9 wherein: the feed inlet and the top ring are sealed through an air bag sealing structure.