A coating machine cleaning and drying gas evacuation device

Abstract

The application discloses a coating machine cleaning and drying gas emptying device and belongs to the field of pharmaceutical machinery, which comprises a communication pipeline, a pipeline switching piece, a dust remover, a filter and a fan. The communication pipeline comprises a main pipeline, a first branch pipeline and a second branch pipeline which are in communication with the outlet of the main pipeline, and the inlet of the main pipeline is in communication with the air outlet of the coating machine. The pipeline switching piece is arranged at the intersection of the inlets of the first branch pipeline and the second branch pipeline. The dust remover is arranged in the first branch pipeline. The filter is arranged in the second branch pipeline. The fan is arranged at the confluence air outlet of the first branch pipeline and the second branch pipeline. When the coating machine is working, the air and dust discharged therefrom are high in humidity, or after the coating machine is cleaned and before drying, the gas containing a high content of water is passed through the second branch pipeline, so that the dust remover is prevented from being polluted by the water and impurities in the gas discharged from the coating machine and the hardening phenomenon in the dust remover is prevented.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of pharmaceutical machinery, and particularly relates to a coating machine cleaning and drying gas exhaust device. BACKGROUND

[0002] Currently, the gas after cleaning and drying of the coating machine equipment directly passes through the pulse bag filter. The gas after cleaning and drying contains moisture and impurities. After passing through the bag of the pulse bag filter, the moisture contacts the dust on the bag, and long-term consolidation phenomenon occurs, which reduces the dust removal effect of the pulse bag filter and affects the coating effect. In order to achieve the expected dust removal effect, the bag in the pulse bag filter needs to be frequently replaced, which increases the labor intensity of workers. At the same time, the bag is expensive, which increases the production cost.

[0003] Therefore, how to prevent the consolidation phenomenon of the bag in the pulse bag filter and prolong the service life of the bag is a technical problem that technicians in the field need to solve. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a coating machine cleaning and drying gas exhaust device to prevent the consolidation phenomenon of the bag in the pulse bag filter. To achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0005] A coating machine cleaning and drying gas exhaust device, comprising a communication pipeline, a pipeline switching piece, a dust remover, a filter, and a fan.

[0006] The communication pipeline comprises a main pipeline, and a first branch pipeline and a second branch pipeline in communication with the outlet of the main pipeline, and the inlet of the main pipeline is in communication with the air outlet of the coating machine.

[0007] The pipeline switching piece is arranged at the intersection of the inlets of the first branch pipeline and the second branch pipeline.

[0008] The dust remover is arranged in the first branch pipeline.

[0009] The filter is arranged in the second branch pipeline.

[0010] The fan is arranged at the confluence air outlet of the first branch pipeline and the second branch pipeline.

[0011] Preferably, in the above coating machine cleaning and drying gas exhaust device, a humidity detection element and a central controller are further included. The humidity detection element is arranged in the main pipeline and is used for detecting the humidity in the main pipeline. The central controller is in signal connection with the humidity detection element and the pipeline switching piece.

[0012] Preferably, in the coating machine cleaning and drying gas exhaust device, the pipeline switching piece comprises a first valve and a second valve, the first valve is arranged at the inlet end of the first branch pipeline, and the second valve is arranged at the inlet end of the second branch pipeline.

[0013] Preferably, in the coating machine cleaning and drying gas exhaust device, the pipeline switching piece comprises a rotating shaft and a switching plate, the rotating shaft is rotatably arranged at the intersection of the inlets of the first branch pipeline and the second branch pipeline, and the switching plate is fixedly connected with the rotating shaft.

[0014] Preferably, in the coating machine cleaning and drying gas exhaust device, the pipeline switching piece comprises a rotating shaft and a switching plate, the rotating shaft is rotatably arranged at the intersection of the inlets of the first branch pipeline and the second branch pipeline, and the switching plate is fixedly connected with the rotating shaft.

[0015] Preferably, in the coating machine cleaning and drying gas exhaust device, the pipeline switching piece comprises a rotating shaft and a switching plate, the rotating shaft is rotatably arranged at the intersection of the inlets of the first branch pipeline and the second branch pipeline, and the switching plate is fixedly connected with the rotating shaft.

[0016] Preferably, in the coating machine cleaning and drying gas exhaust device, the pipeline switching piece comprises a rotating shaft and a switching plate, the rotating shaft is rotatably arranged at the intersection of the inlets of the first branch pipeline and the second branch pipeline, and the switching plate is fixedly connected with the rotating shaft.

[0017] Preferably, in the coating machine cleaning and drying gas exhaust device, the pipeline switching piece comprises a rotating shaft and a switching plate, the rotating shaft is rotatably arranged at the intersection of the inlets of the first branch pipeline and the second branch pipeline, and the switching plate is fixedly connected with the rotating shaft.

[0018] Preferably, in the coating machine cleaning and drying gas exhaust device, the pipeline switching piece comprises a rotating shaft and a switching plate, the rotating shaft is rotatably arranged at the intersection of the inlets of the first branch pipeline and the second branch pipeline, and the switching plate is fixedly connected with the rotating shaft.

[0019] Compared with the prior art, the coating machine cleaning and drying gas exhaust device has the following beneficial effects: when the coating machine is working, the technician controls the pipeline switching piece to make the first branch pipeline and the main pipeline in a conductive state and the second branch pipeline and the main pipeline in an isolated state, the air dust discharged during production passes through the first branch pipeline, the dust filter filters the dust discharged during production, the adsorption element adsorbs the smell of the production exhaust air, and finally the air is discharged by the fan; when the coating machine is working and the air dust discharged by the coating machine has high humidity or after the coating machine is cleaned and before drying, the technician controls the pipeline switching piece to make the first branch pipeline and the main pipeline in an isolated state and the second branch pipeline and the main pipeline in a conductive state, the gas containing high moisture passes through the second branch pipeline, the gas passes through the filter and the adsorption element, and the filter filters impurities and the adsorption element adsorbs smell, and finally the gas is discharged by the fan, so that the dust filter is prevented from being polluted by the moisture and impurities in the gas discharged by the coating machine device and the caking phenomenon in the dust filter is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic view of the coating machine cleaning and drying gas exhaust device.

[0021] In the figure: 1 coating machine, 2 cyclone separator, 3 first valve, 4 second valve, 5 third valve, 6 filter, 7 dust collector, 8 adsorption element, 9 fan, 10 humidity detection element. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0023] Please refer to Figure 1 The present application provides a coating machine cleaning and drying gas evacuation device, comprising a communication pipeline, a pipeline switching piece, a dust collector 7, a filter 6, a fan 9, and a humidity detection element 10.

[0024] The communication pipeline comprises a main pipeline, and a first branch pipeline and a second branch pipeline which are in communication with the outlet of the main pipeline, and the inlet of the main pipeline is in communication with the air outlet of the coating machine 1.

[0025] The pipeline switching piece is arranged at the intersection of the inlets of the first branch pipeline and the second branch pipeline.

[0026] The dust collector 7 is arranged in the first branch pipeline.

[0027] The filter 6 is arranged in the second branch pipeline.

[0028] The fan 9 is arranged at the confluence air outlet of the first branch pipeline and the second branch pipeline.

[0029] Compared with the prior art, the present application provides a coating machine cleaning and drying gas evacuation device, which has the following beneficial effects: when the coating machine is working, the technician controls the pipeline switching piece to make the first branch pipeline and the main pipeline in a conductive state, and the second branch pipeline and the main pipeline in a blocked state, so that the air dust discharged during production passes through the first branch pipeline, the dust collector filters the dust discharged during production, the adsorption element adsorbs the odor of the production evacuation air, and finally the air is discharged by the fan; when the coating machine is working, the humidity of the air dust discharged is high, or after the coating machine is cleaned, before drying, the technician controls the pipeline switching piece to make the first branch pipeline and the main pipeline in a blocked state, and the second branch pipeline and the main pipeline in a conductive state, so that the gas containing a high amount of water passes through the second branch pipeline, the gas passes through the filter and the adsorption element to filter impurities and adsorb odor, and then is discharged by the fan. In this process, it is ensured that the dust collector is not contaminated by the water and impurities in the gas discharged by the coating machine device, and the hardening phenomenon in the dust collector is prevented.

[0030] Specifically, the humidity detection element 10 is arranged on the main pipeline and used for detecting the humidity in the main pipeline, and the central controller is in signal connection with the humidity detection element 10 and the pipeline switching element.

[0031] It should be understood that the humidity detection element 10 and the central controller are in signal connection, and the signal connection includes various forms of wired connection or wireless connection; in addition, the pipeline switching element can be two separate valves controlled by the central controller, or can be a rotating piece for switching the conduction between the main pipeline and the two branch pipelines, as long as the switching of the two branch pipelines can be realized.

[0032] Specifically, in a specific embodiment of the present application, the pipeline switching element includes a first valve 3 and a second valve 4, the first valve 3 is arranged at the inlet end of the first branch pipeline, and the second valve 4 is arranged at the inlet end of the second branch pipeline.

[0033] It should be understood that in the above embodiment, the first valve 3 and the second valve 4 can be independently controlled by the central controller, or can be linked by the central controller, that is, when the first valve 3 is switched from the closed state to the open state, the central controller controls the second valve 4 to be switched from the open state to the closed state, and when the first valve 3 is switched from the open state to the closed state, the central controller controls the second valve 4 to be switched from the closed state to the open state.

[0034] Specifically, in another specific embodiment of the present application, the pipeline switching element includes a rotating shaft and a switching plate, the rotating shaft is rotatably arranged at the intersection of the inlet ends of the first branch pipeline and the second branch pipeline, and the switching plate is fixedly connected with the rotating shaft.

[0035] When the rotating shaft is rotated to a first preset angle, the switching plate is perpendicular to the axis of the first branch pipeline, the switching plate blocks the first branch pipeline, and only the second branch pipeline is in conduction with the main pipeline; when the rotating shaft is rotated to a second preset angle, the switching plate is perpendicular to the axis of the second branch pipeline, the switching plate blocks the second branch pipeline, and only the first branch pipeline is in conduction with the main pipeline.

[0036] Specifically, the coating machine cleaning and drying gas exhaust device further comprises a cyclone separator 2 arranged at the air outlet of the coating machine, and the cyclone separator 2 is used to capture dust with a diameter of 5-10 μm or above in the coating machine working exhaust gas during the working process of the coating machine.

[0037] Specifically, the confluence air outlet of the first branch pipe and the second branch pipe is provided with an adsorption element 8 for adsorbing the odor of the coating machine exhaust gas.

[0038] Specifically, the outlet of the second branch pipe is provided with a third valve 5, and when the humidity of the coating machine exhaust gas is large, the third valve 5 is controlled to be in a closed state to prevent the humid gas from flowing back to the dust collector 7 through the outlet of the second branch pipe, thereby preventing the hardening phenomenon in the dust collector.

[0039] It should be understood that the above-mentioned third valve 5 can be a one-way valve, or a valve that is linked with the first valve 3 and the second valve 4 through a central controller, as long as it can prevent the humid gas from flowing back, which belongs to the protection scope of the present application.

[0040] The present application also provides a coating machine comprising a coating machine body and the coating machine cleaning and drying gas exhaust device according to any one of the above, so as to have the above-mentioned coating machine cleaning and drying gas exhaust device, which will not be described here.

[0041] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A coating pan cleaning and drying gas evacuation apparatus, characterized by, The coating machine cleaning and drying gas exhaust device comprises a communication pipeline, a pipeline switching piece, a dust remover, a filter, a fan, a cyclone separator, a humidity detection element, and a central controller. The communication pipeline comprises a main pipeline, a first branch pipeline, and a second branch pipeline. The pipeline switching piece is arranged at the intersection of the first branch pipeline and the second branch pipeline. The dust remover is arranged in the first branch pipeline. The filter is arranged in the second branch pipeline. The fan is arranged at the confluence outlet of the first branch pipeline and the second branch pipeline. The cyclone separator is arranged at the air outlet of the coating machine. A third valve is arranged at the outlet of the second branch pipeline. The humidity detection element is arranged in the main pipeline to detect the humidity in the main pipeline. The central controller is in signal connection with the humidity detection element and the pipeline switching piece. The pipeline switching piece is used to control the conduction state of the first branch pipeline and the main pipeline, and the conduction state of the second branch pipeline and the main pipeline. The confluence outlet of the first branch pipeline and the second branch pipeline is provided with an adsorption element.

2. The coating pan cleaning and drying gas evacuation apparatus of claim 1, wherein, The filter is used to filter impurities in the gas.

3. The coating pan cleaning and drying gas evacuation apparatus of claim 1, wherein, The pipeline switching piece comprises a first valve and a second valve.

4. A coating machine characterized by, The first valve is arranged at the inlet end of the first branch pipeline. The second valve is arranged at the inlet end of the second branch pipeline. The pipeline switching piece comprises a rotating shaft and a switching plate. The rotating shaft is rotatably arranged at the intersection of the first branch pipeline and the second branch pipeline. The switching plate is fixedly connected with the rotating shaft. When the rotating shaft rotates to a first preset angle, the switching plate is perpendicular to the axis of the first branch pipeline. When the rotating shaft rotates to a second preset angle, the switching plate is perpendicular to the axis of the second branch pipeline. The coating machine comprises a coating machine body and the coating machine cleaning and drying gas exhaust device as claimed in any one of the preceding claims. The coating machine comprises a coating machine body and the coating machine cleaning and drying gas exhaust device as claimed in any one of the preceding claims.

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