Coating machine

Abstract

The utility model relates to a coating machine. The coating machine comprises an air supply module, a host module, an air exhaust module and a waste heat recovery module, the host module is communicated to the air supply module, the host module is communicated to the air exhaust module, and the waste heat recovery module is communicated to the air exhaust module and the air supply module; the air supply module is provided with a heating unit which is communicated to the host module through a pipeline; the waste heat recovery module is provided with a heat exchanger and a circulating water unit, the heat exchanger is communicated with the exhaust module through a pipeline, the heat exchanger is communicated with the circulating water unit through a pipeline, the circulating water unit is communicated with the heating unit through a pipeline, and the heat exchanger is communicated with the host module through a pipeline to form a circulation loop.

Description

Technical Field

[0001] The present application relates to the technical field of waste heat recovery of pharmaceutical equipment, and in particular to a coating machine. Background Art

[0002] As consumers demand a higher quality of life, most pharmaceutical companies will use coating technology on drugs. Coating tablets is a pharmaceutical process, which is mainly used to relieve the pain caused by patients during medication.

[0003] During the coating process of tablets, high-heat waste gas is generated. However, most coating machines do not have a waste heat recovery system and directly discharge the waste gas into the air, resulting in heat waste. Although some coating machines are equipped with waste heat recovery, they usually simply filter the recovered waste gas and reuse it, which can easily cause drug contamination during the coating process. Therefore, a green and energy-saving coating machine is urgently needed. Utility Model Content

[0004] In view of this, the present application proposes a coating machine to solve the above problems.

[0005] According to one aspect of the present application, a coating machine is proposed, comprising: an air supply module, a main unit module, an exhaust module and a waste heat recovery module; the air supply module is connected to the main unit module, the main unit module is connected to the exhaust module, the exhaust module is connected to the waste heat recovery module, and the waste heat recovery module is connected to the air supply module; the air supply module has a heating unit, and the heating unit is connected to the main unit through a pipeline; the waste heat recovery module has a heat exchanger and a circulating water unit, the heat exchanger is connected to the exhaust module through a pipeline, the heat exchanger is connected to the circulating water unit through a pipeline, and the circulating water unit is connected to the heating unit through a pipeline to form a circulation loop.

[0006] In a possible implementation, the waste heat recovery module further includes: a circulation pump; the circulation pump is arranged between the heating unit and the circulating water unit, the circulation pump and the circulating water unit are arranged adjacent to each other, and the circulation pump is arranged at the bottom of the heat exchanger.

[0007] In a possible implementation, the heat exchanger is an air-water heat exchanger, an exhaust pipe is provided at one end of the heat exchanger, and the exhaust pipe is provided on both sides of the heat exchanger opposite to the host module.

[0008] In a possible implementation, the air supply module is disposed adjacent to the host module, and the air exhaust module is disposed adjacent to the host module.

[0009] In a possible implementation, the middle of the air supply module is connected to the top of the host module, the top of the host module is connected to the upper part of the exhaust module, and the upper part of the exhaust module is connected to the middle of the heat exchanger.

[0010] In a possible implementation, it further includes: a liquid supply module; the liquid supply module is connected to the host module, the liquid supply module is arranged on one side of the host module, and the liquid supply module is close to the air supply module.

[0011] In a possible implementation, the exhaust module has a dust removal unit, an exhaust duct and a fan; the dust removal unit is connected to the host module, the dust removal unit is connected to the waste heat recovery module, the exhaust duct is arranged in the middle of the heat exchanger, and the opening of the exhaust duct is upward; the fan is arranged between the dust removal unit and the heat exchanger, the fan is arranged in the middle and lower part of the dust removal unit, and the fan is arranged adjacent to the dust removal unit.

[0012] In a possible implementation, the air supply module also has a filtering unit and a cooling unit, the filtering unit is connected to the cooling unit, and the cooling unit is connected to the heating unit; the filtering unit includes: a low-level filter, a mid-level filter and a high-level filter, the low-level filter is connected to the mid-level filter, the mid-level filter is connected to the cooling unit, the cooling unit is connected to the heating unit, the heating unit is connected to the high-level filter, and the high-level filter is connected to the host module.

[0013] In a possible implementation, the cooling unit is disposed close to an air inlet of the air supply module, and the heating unit is disposed close to an air outlet of the air supply module.

[0014] Beneficial effects of this application:

[0015] 1. The air supply module uses natural air for filtering, cooling and then heating. A waste heat recovery module is added to the coating machine to use the waste heat of the exhaust gas of the coating machine to preheat the process links that require heat, which can reduce the heat demand in the process links and has significant energy-saving benefits.

[0016] 2. The waste heat recovery module has a heat exchanger and a circulating water unit. The heat exchanger recovers the received heat to the circulating water unit to avoid drug contamination when the recovered energy is transmitted to the air supply module for reheating. Specifically, the heat exchanger and the heating unit are separated by a circulating water unit, and the use of an indirect heat exchange system can effectively prevent pollutants in the exhaust gas from contaminating the air supply module.

[0017] 3. The coating machine proposed in this application provides a hot air source to the main module through the air supply module, so that the tablet bed is dried, and then the tablets are rotated and stirred in the coating pot until the tablet surface is sprayed or dripped with coating materials, so that the tablet coating effect is uniform, which relieves the pain of medication for patients and avoids irritation to the stomach. A waste heat recovery module is set in the coating machine, and the two ends of the waste heat recovery module are connected to the main module and the air supply module respectively, so that the humid hot air generated after the coating is completed can be recycled.

[0018] Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the present application and, together with the description, serve to explain the principles of the present application.

[0020] Figure 1 A diagram showing the working principle of the coating machine according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0021] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0022] Among them, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application or simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0025] In addition, in order to better illustrate the present application, numerous specific details are provided in the following specific embodiments. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.

[0026] Figure 1 The working principle diagram of the coating machine of the present application is shown in FIG. Figure 1 As shown, the coating machine includes: an air supply module 100, a main module 200, an exhaust module and a waste heat recovery module; the air supply module 100 is connected to the main module 200, the main module 200 is connected to the exhaust module, the exhaust module is connected to the waste heat recovery module, and the waste heat recovery module is connected to the air supply module 100; the air supply module 100 has a heating unit 110, one end of the heating unit 110 is connected to the main module 200 through a pipeline; the waste heat recovery module has a heat exchanger 410 and a circulating water unit 420, the heat exchanger 410 is connected to the exhaust module through a pipeline, the heat exchanger 410 is connected to the circulating water unit 420 through a pipeline, and the circulating water unit 420 is connected to the heating unit 110 through a pipeline to form a water circulation loop.

[0027] The coating machine proposed in this embodiment is provided with a waste heat recovery module in the coating machine, and the two ends of the waste heat recovery module are connected to the air supply module 100 and the exhaust module respectively, so that the moist hot air generated by the host module 200 after the coating is completed can be recycled. In addition, it should be noted that the host module 200 is used to rotate the tablets in the coating pot and stir them evenly during the coating process; wherein the adjustment of the host speed is achieved by adjusting the reduction ratio by the hand wheel and the butterfly spring. The air supply unit is used to provide hot air to the system to dry the tablet bed, and is mainly composed of a heat exchanger 410, i.e., a steam heat exchanger, a fan and an air duct. In order to meet the requirements of cleanliness, three-level filters of primary, medium and high efficiency are installed. Specifically, the air supply module 100 collects and filters the natural wind from the outside, cools and dehumidifies it, and then heats it, and then provides hot air to the host module 200 after filtering, so that the wind source is clean, and the hot air allows rapid air drying during coating. Adding a waste heat recovery module in the coating machine and using the waste heat of the coating machine's exhaust gas to preheat the process steps that require heat can reduce the heat demand in the process steps and achieve significant energy-saving benefits. Among them, the waste heat recovery module has a heat exchanger 410 and a circulating water unit 420. The heat exchanger 410 recovers the received heat to the circulating water unit 420. Compared with traditional waste heat recovery, it avoids the recovered energy being directly transmitted to the air supply module 100, and then directly provides the recovered hot air to the host module, causing drug contamination during the coating process. The heat exchanger 410 and the heating unit 110 are separated by the circulating water unit 420, and the use of an indirect heat exchange system can effectively prevent pollutants in the discharged exhaust gas from contaminating the air supply module 100. More specifically, first, outdoor fresh air enters the air supply module 100, and the air passes through the primary filtration section, the medium-efficiency filtration section, the surface cooling section, the rotary dehumidification section, the preheating section, the steam heating section, and the high-efficiency filtration section to produce clean high-temperature air and then is sent to the host module 200. The tablets in the host rotate evenly, and the liquid supply module 500 sprays liquid onto the surface of the tablets in the host module 200 to achieve the coating process. At this time, the high-temperature air provided by the air supply module 100 in the previous step dries the medicine, and the dried medicine enters the next link of the pharmaceutical preparation. The air after drying the medicine enters the dust removal module to process the dust in the air, and is discharged after the treatment is completed. At this time, there is residual heat in the discharged air, which can enter the air-water heat exchanger 410 again. After entering the heat exchanger 410, the heat is transferred to the circulating water unit 420 and then discharged into the air. The heated aqueous solution passes through the circulating pump 430 and exchanges heat with the air in the preheating section of the air handling unit, and then enters the steam heating section, and the cycle is repeated. It solves the problem of the waste gas of the coating machine being discharged directly into the air without recovery, and uses the waste heat of the waste gas of the coating machine to preheat the links in the process that require heat, reducing the heat demand in the process links and achieving significant energy-saving benefits.

[0028] In one specific embodiment, the waste heat recovery module further includes: a circulation pump 430; the circulation pump 430 is disposed between the heating unit 110 and the circulating water unit 420, the circulation pump 430 is disposed adjacent to the circulating water unit 420, and the circulation pump 430 is disposed at the lower part of the heat exchanger 410. In this embodiment, it should be noted that the heat exchange efficiency of the water circulation loop is improved to avoid long-term flow of water and heat loss.

[0029] In one specific embodiment, the heat exchanger 410 is an air-water heat exchanger, and an exhaust pipe 330 is provided at one end of the heat exchanger 410. The exhaust pipe 330 and the host module 200 are arranged on both sides of the heat exchanger 410. In this embodiment, it should be noted that the exhaust gas and water are indirectly used for heat exchange and then a heat source is provided to the air supply system, which not only utilizes heat but also does not cross ventilation to pollute the medicine.

[0030] In one specific embodiment, the air supply module 100 is disposed adjacent to the host module 200, and the exhaust module is disposed adjacent to the host module 200. In this embodiment, it should be noted that the system has a high degree of integration, and the decentralized process is avoided to exchange heat with natural wind, resulting in heat energy waste.

[0031] In one specific embodiment, the middle of the air supply module 100 is connected to the top of the host module 200, the top of the host module 200 is connected to the upper part of the exhaust module, and the upper part of the exhaust module is connected to the middle of the heat exchanger 410. In this embodiment, it should be noted that the air supply module 100 is convenient for supplying air from the top, so that the liquid sprayed by the liquid supply module 500 is evenly sprinkled on the medicine on the host module 200, so that the tablet coating is more uniform. The waste heat recovery module is connected to the upper part of the exhaust module to facilitate the flow of wind and reduce power loss.

[0032] In one specific embodiment, it further comprises: a liquid supply module 500; the liquid supply module 500 is connected to the host module 200, the liquid supply module 500 is arranged on one side of the host module 200, and the liquid supply module 500 is close to the air supply module 100. In this embodiment, it should be noted that the coating material is sprayed or dripped onto the surface of the tablet bed to achieve the coating process.

[0033] In one specific embodiment, the exhaust module has a dust removal unit 310, a fan 320 and an exhaust pipe 330; the dust removal unit 310 is connected to the host module 200, the dust removal unit 310 is connected to the waste heat recovery module, the exhaust pipe 330 is arranged in the middle of the heat exchanger, and the opening of the exhaust pipe 330 is upward; the fan 320 is arranged between the dust removal unit 310 and the heat exchanger 410, the fan 320 is arranged in the middle and lower part of the dust removal unit 310, and the fan 320 is arranged adjacent to the dust removal unit 310. In this embodiment, it should be noted that the humid air in the coating process is discharged, and the dust generated in the coating process is filtered out to ensure that the exhaust meets the national environmental protection requirements.

[0034] In one specific embodiment, the air supply module 100 also has a filtering unit and a cooling unit 120, the filtering unit is connected to the cooling unit 120, and the cooling unit 120 is connected to the heating unit 110; the filtering unit includes: a low-level filter, a medium-level filter and a high-level filter, the low-level filter is connected to the medium-level filter, the medium-level filter is connected to the cooling unit 120, the cooling unit 120 is connected to the heating unit 110, the heating unit 110 is connected to the high-level filter, and the high-level filter is connected to the host module 200.

[0035] In one specific embodiment, the cooling unit 120 is disposed close to the air inlet of the air supply module 100 , and the heating unit 110 is disposed close to the air outlet of the air supply module 100 .

[0036] It should be noted that, although the coating machine is introduced as an example in this application, those skilled in the art will understand that this application should not be limited thereto. In fact, the user can flexibly set it according to personal preferences and / or actual application scenarios, as long as it is reasonable.

[0037] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A coating machine, characterized in that: include: Air supply module, host module, exhaust module and waste heat recovery module; the air supply module is connected to the host module, the host module is connected to the exhaust module, the exhaust module is connected to the waste heat recovery module, and the waste heat recovery module is connected to the air supply module; The air supply module has a heating unit, and the heating unit is connected to the host module through a pipeline; The waste heat recovery module has a heat exchanger and a circulating water unit. The heat exchanger is connected to the exhaust module through a pipeline, the heat exchanger is connected to the circulating water unit through a pipeline, and the circulating water unit is connected to the heating unit through a pipeline to form a circulation loop.

2. The coating machine according to claim 1, characterized in that: The waste heat recovery module further includes: a circulation pump; the circulation pump is arranged between the heating unit and the circulating water unit, the circulation pump is arranged adjacent to the circulating water unit, and the circulation pump is arranged at the lower part of the heat exchanger.

3. The coating machine according to claim 1, characterized in that: The heat exchanger is an air-water heat exchanger. An exhaust pipe is arranged at one end of the heat exchanger. The exhaust pipe is arranged on both sides of the heat exchanger opposite to the host module.

4. The coating machine according to claim 1, characterized in that: The air supply module is disposed adjacent to the host module, and the air exhaust module is disposed adjacent to the host module.

5. The coating machine according to claim 1, characterized in that: The middle portion of the air supply module is connected to the top of the host module, the top of the host module is connected to the upper portion of the exhaust module, and the upper portion of the exhaust module is connected to the middle portion of the heat exchanger.

6. The coating machine according to claim 1, characterized in that: Also includes: Liquid supply module; the liquid supply module is connected to the host module, the liquid supply module is arranged on one side of the host module, and the liquid supply module is close to the air supply module.

7. The coating machine according to any one of claims 1 to 6, characterized in that: The exhaust module has a dust removal unit, an exhaust duct and a fan; the dust removal unit is connected to the main unit module, the dust removal unit is connected to the waste heat recovery module, the exhaust duct is arranged in the middle of the heat exchanger, and the opening of the exhaust duct is upward; the fan is arranged between the dust removal unit and the heat exchanger, the fan is arranged in the middle and lower part of the dust removal unit, and the fan is arranged adjacent to the dust removal unit.

8. The coating machine according to claim 7, characterized in that: The air supply module also has a filtering unit and a cooling unit, the filtering unit is connected to the cooling unit, and the cooling unit is connected to the heating unit; the filtering unit includes: a low-level filter, a medium-level filter and a high-level filter, the low-level filter is connected to the medium-level filter, the medium-level filter is connected to the cooling unit, the cooling unit is connected to the heating unit, the heating unit is connected to the high-level filter, and the high-level filter is connected to the host module.

9. The coating machine according to claim 8, characterized in that: The cooling unit is arranged close to the air inlet of the air supply module, and the heating unit is arranged close to the air outlet of the air supply module.

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