Powder coating and dust removing device

Abstract

A powder wrapping and dust removing device belongs to the technical field of food processing equipment and is arranged between a powder barrel and a stirring barrel in a sealed manner. Comprising a dust-proof assembly, the dust-proof assembly comprises a cloth bag and a dust-proof shell, connecting pieces are arranged at the two ends of the cloth bag, the ends of the connecting pieces are detachably connected with a powder barrel and a stirring barrel respectively, the dust-proof shell wraps the cloth bag, and the two opposite ends of the dust-proof shell are connected with the connecting pieces at the two ends of the cloth bag in a sealed mode respectively to form a sealed cavity; an air inlet assembly and a dust collecting assembly are arranged on the dustproof shell, and the dustproof assembly can prevent dust generated by powder from overflowing from the joint of the powder barrel and the stirring barrel, so that the condition that the dust is diffused in an operation room is avoided; an air inlet assembly and a dust collecting assembly are arranged on the dustproof shell, powder generated in the whole powder wrapping process can be treated, and the stability of air pressure in the dustproof shell is maintained; and the dustproof shell is used as a dust storage space, so that the feeding and powder coating operations are not influenced.

Description

Technical Field

[0001] The present application belongs to the technical field of food processing equipment, and in particular relates to a powder coating and dust removal device. Background Art

[0002] Powder-coated foods are a common type of snack, with peanuts and other nut-based foods and beans being the most common. During the food production process, the food is first coated with a layer of powder to make it easier to shape during frying and to create a crispy texture. However, when the powder is added from the powder barrel into the mixing barrel, it escapes from the connection between the powder barrel and the mixing barrel into the workshop, causing a large amount of dust to fill the workshop, obstructing vision, and even causing dust explosions in severe cases.

[0003] For example, the invention patent with publication number "CN202011467752.0" discloses a powder coating machine with a dust removal function for food processing, including a closed shell, a processing box, a powder coating cylinder and a dust collector. The tops of the processing box and the powder coating cylinder are respectively connected to a first feed pipe and a second feed pipe, and the tops of the first feed pipe and the second feed pipe both pass through the top of the closed shell, and an air inlet channel is provided through the surface of one side of the closed shell; the present invention can screen the powder when adding the powder to avoid the agglomerated powder from participating in the powder coating operation, and can break up the agglomerated powder, and at the same time has a dust removal function, which solves the problem of dust generation during the operation of the powder coating machine.

[0004] Although the above invention patent has a dust removal function, it ignores whether dust will escape at the interface. Summary of the Invention

[0005] In view of this, it is necessary to provide a solution to the problem of powder escaping from the connection between the bag and the shell during the powder coating process, so as to avoid the situation in which the workshop is filled with dust.

[0006] The solution to the technical problem described in this application is:

[0007] A powder coating and dust removal device is arranged between a powder barrel and a mixing drum and is sealed; it includes a dustproof component, the dustproof component includes a cloth bag and a dustproof shell, both ends of the cloth bag are provided with connecting parts, the ends of the connecting parts are detachably connected to the powder barrel and the mixing drum respectively, the dustproof shell wraps the cloth bag, and the opposite ends of the dustproof shell are respectively sealed and connected to the connecting parts at both ends of the cloth bag to form a sealed cavity; the dustproof shell is provided with an air intake component and a dust collecting component, the air intake component is used to inflate the sealed cavity, and the dust collecting component is used to extract powder and dust in the sealed cavity.

[0008] Preferably, the air intake assembly includes an air intake pipe, a first valve and an inert gas storage tank, the outlet of the air intake pipe is connected to the dustproof shell through a sealing ring, the first valve is arranged on the air intake pipe, and the outlet of the inert gas storage tank is connected to the inlet of the air intake pipe.

[0009] Preferably, the dust collecting assembly includes an air outlet pipe, a second valve and a dust collecting bag. The inlet of the air outlet pipe is connected to the dustproof shell through a sealing ring. The second valve is arranged on the air outlet pipe. The inlet of the dust collecting bag is detachably connected to the outlet of the air outlet pipe.

[0010] Preferably, the air intake assembly is arranged above the dust collecting assembly.

[0011] Preferably, a sealing member is provided on the dustproof housing, and the sealing member covers and seals the connection between the connector and the dustproof housing to ensure the sealing of the dustproof housing.

[0012] Preferably, the outlets of the cloth bags are all in the shape of a funnel, and the small diameter of the funnel-shaped outlet is arranged toward the mixing drum.

[0013] Preferably, the shape of the inlet of the cloth bag is funnel-shaped, and the setting direction of the funnel-shaped inlet is consistent with the setting direction of the powder barrel.

[0014] This application adopts a technical solution of a powder coating and dust removal device to achieve the following beneficial effects:

[0015] The dust-proof component can prevent dust generated by the powder from overflowing from the connection between the powder barrel and the mixing barrel, so as to prevent the operating room from being filled with dust.

[0016] The dustproof shell is provided with an air intake assembly and a dust collecting assembly, which can process the powder generated during the entire powder coating process and maintain the stability of the air pressure in the dustproof shell; and the dustproof shell serves as a storage space for dust and will not affect the operations of adding materials and coating powder.

[0017] The dust collecting component can collect dust generated by the powder, thereby avoiding waste of the powder.

[0018] The dustproof component is detachably connected, has flexible usage scenarios, and is highly applicable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a diagram of the powder coating and dust removal device in this application.

[0020] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0021] In the figure: powder barrel 10, mixing drum 20, dustproof component 30, cloth bag 301, connecting piece 3011, dustproof shell 302, sealing piece 3021, air intake component 303, air intake pipe 3031, first valve 3032, inert gas storage tank 3033, dust collecting component 304, air outlet pipe 3041, second valve 3042, dust collecting bag 3043. DETAILED DESCRIPTION

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, a brief introduction to the drawings required for use in the embodiments will be given below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] Please see Figures 1 to 2 , provides a powder coating and dust removal device, which is arranged between the powder barrel 10 and the mixing drum 20 and is sealed; it includes a dust-proof component 30, the dust-proof component 30 includes a cloth bag 301 and a dust-proof shell 302, both ends of the cloth bag 301 are provided with connectors 3011, the ends of the connectors 3011 are detachably connected to the powder barrel 10 and the mixing drum 20 respectively, the dust-proof shell 302 wraps the cloth bag 301, and the opposite ends of the dust-proof shell 302 are respectively sealed and connected to the connectors 3011 at both ends of the cloth bag 301 to form a sealed cavity; the dust-proof shell 302 is provided with an air intake component 303 and a dust collecting component 304, the air intake component 303 is used to inflate the sealed cavity, and the dust collecting component 304 is used to extract powder and dust in the sealed cavity.

[0024] In order to prevent powder from overflowing from the connection between the powder barrel 10 and the mixing barrel 20 during the powder coating process, resulting in dust filling the operating room, the dustproof component 30 is provided. The dustproof component 30 can prevent powder from overflowing into the working room. At this time, dust overflows into the dustproof housing 302 along the connection between the mixing barrel 20 and the dustproof component 30.

[0025] When in use, the dustproof shell 302 can be set to a cylindrical or rectangular shape, and can wrap the cloth bag 301. The cloth bag 301 can be displaced (moved up and down or swayed left and right) in the dustproof shell 302, and the material of the cloth bag 301 has a certain toughness, a smooth surface, and a certain density, or relevant staff can also choose other materials.

[0026] During installation, the connectors 3011 at both ends of the cloth bag 301 are respectively connected to the powder barrel 10 and the mixing barrel 20, and can be disassembled when not in use; when connected, the inner wall of the connector 3011 and the powder barrel 10 and the mixing barrel 20 can be connected by threaded connection, and need to be sealed (sealing method: adding a sealing ring at the connection or the staff can also choose the sealing method according to actual conditions) to prevent powder from overflowing from the connection between the connector 3011 and the powder barrel 10 and the mixing barrel 20.

[0027] The connection position between the dustproof shell 302 and the connecting piece 3011: A mounting hole is provided on the dustproof shell 302, and the size of the mounting hole matches the size of the connecting piece 3011. When connected, the dustproof shell 302 can be connected to the end or the middle of the outer wall of the connecting piece 3011.

[0028] During use, the powder in the powder barrel 10 enters the mixing drum 20 through the cloth bag 301. In the process of the powder entering the mixing drum 20 from the powder barrel 10 (the powder moves downward), a large amount of dust will be generated (the reason for the dust generation: since the mixing drum 20 is a sealed space, when the flour enters the mixing drum 20, the air pressure balance in the mixing drum 20 is changed. At this time, the original airflow in the mixing drum 20 rises, thereby driving part of the powder to move upward). At this time, due to the existence of the dust-proof component 30, the generated dust will move upward along the outlet of the cloth bag 301. The dust generated at this time (brought into the dust-proof shell 302 by the rising airflow in the mixing drum 20) will enter the dust-proof shell 302. The dust is temporarily retained in the dustproof shell 302 and will not escape into the workshop. At this time, the air pressure in the dustproof shell 302 will increase. In order to maintain the air pressure in the dustproof shell 302 stable, the dust collecting component 304 is opened to discharge the gas (containing dust) in the dustproof shell 302 to ensure the gas balance in the dustproof shell 302; after that, when the powder is added, in order to avoid dust remaining in the dustproof shell 302, that is, to remove the residual dust in the dustproof shell 302, the air intake component 303 is opened to increase the air pressure in the dustproof shell 302, and then the air intake component 303 is closed, and then the dust collecting component 304 is opened. At this time, under the action of air pressure, the dust is discharged from the dustproof shell 302 driven by the air pressure.

[0029] It should be noted that the air intake assembly 303 and the dust collection assembly 304 are used alternately.

[0030] This application adopts a technical solution of a powder coating and dust removal device to achieve the following beneficial effects:

[0031] The dustproof assembly 30 can prevent dust generated by the powder from overflowing from the connection between the powder barrel 10 and the mixing barrel 20, so as to prevent the operating room from being filled with dust.

[0032] The dustproof shell 302 is provided with an air intake component 303 and a dust collecting component 304, which can process the powder generated during the entire powder coating process and maintain the stability of the air pressure in the dustproof shell 302; and the dustproof shell 302 serves as a storage space for dust and will not affect the operations of adding materials and coating.

[0033] The dust collecting assembly 304 can collect dust generated by the powder to avoid waste of the powder.

[0034] The dustproof component 30 is detachably connected, has flexible usage scenarios, and is highly applicable.

[0035] Furthermore, the air intake assembly 303 includes an air intake pipe 3031, a first valve 3032 and an inert gas storage tank 3033. The outlet of the air intake pipe 3031 is connected to the dustproof shell 302 through a sealing ring. The first valve 3032 is arranged on the air intake pipe 3031, and the outlet of the inert gas storage tank 3033 is connected to the inlet of the air intake pipe 3031.

[0036] When the air intake assembly 303 is in use, the first valve 3032 is first opened, and then the gas in the inert gas storage tank 3033 (the inert gas has stable chemical properties and is not easy to react with other substances) enters the dustproof shell 302 from the air intake pipe 3031 to blow off the dust remaining on the inner wall of the dustproof shell 302 and make it diffuse in the inner cavity of the dustproof shell 302. This can facilitate the subsequent cleaning of the dustproof shell 302, so that the dust can be better discharged from the dustproof shell 302, and can also make the dust (most of the dust) float in the dustproof shell 302, avoiding dust accumulation in the dustproof shell 302.

[0037] In a specific embodiment, the dust collecting assembly 304 includes an air outlet pipe 3041, a second valve 3042 and a dust collecting bag 3043. The inlet of the air outlet pipe 3041 is connected to the dustproof shell 302 through a sealing ring. The second valve 3042 is arranged on the air outlet pipe 3041. The inlet of the dust collecting bag 3043 is detachably connected to the outlet of the air outlet pipe 3041.

[0038] Afterwards, in order to collect the dust in the dustproof shell 302, the second valve 3042 is opened. Since the air pressure in the dustproof shell 302 is greater than the external atmospheric pressure, the dust in the dustproof shell 302 will enter the dust collecting bag 3043 with the air flow, thereby achieving the purpose of dust removal of the dustproof shell 302. The dust collecting bag 3043 can also collect the dust, preventing the dust in the dustproof shell 302 from being discharged into the air and causing air pollution.

[0039] At the same time, when powder is added into the mixing drum 20 , in order to maintain the air pressure in the dustproof housing 302 stable and collect the dust in the dustproof housing 302 , the dust collecting assembly 304 is in an open state.

[0040] It should be noted that when the second valve 3042 is opened, the first valve 3032 needs to be closed.

[0041] During specific use, the air intake assembly 303 is arranged above the dust collecting assembly 304 .

[0042] Compared with air, most of the dust generated by the powder will gather in the lower half of the dustproof shell 302. At this time, in order to more thoroughly discharge the dust in the dustproof shell 302, the air intake component 303 is arranged above the dust collecting component 304, which can improve the dust discharge efficiency.

[0043] In a preferred embodiment, a sealing member 3021 is provided on the dustproof housing 302 , and the sealing member 3021 covers and seals the connection between the connector 3011 and the dustproof housing 302 to ensure the sealing of the dustproof housing 302 .

[0044] The dustproof housing 302 must be sealed when in use to prevent dust from escaping from the gap. To achieve this, a seal 3021 is provided on the dustproof housing 302. The seal 3021 seals the connection between the connector 3011 and the dustproof housing 302. In actual use, the seal 3021 can be a gasket or a threaded structure, that is, the seal 3021 is a sealing cylinder with threads provided therein. The outer wall of the connector 3011 is also provided with threads. These two threads can be used in conjunction with each other to ensure the sealing of the dustproof housing 302.

[0045] In a preferred embodiment, the outlet of the cloth bag 301 is in the shape of a funnel, and the small diameter of the funnel-shaped outlet is arranged toward the mixing drum 20 .

[0046] In order to prevent the dust in the mixing drum 20 from overflowing from the mixing drum 20, the outlet shape of the cloth bag 301 is set to a funnel shape (the end with a larger diameter is called the major diameter, and the end with a smaller diameter is called the minor diameter). When installed, the major diameter faces downward and the minor diameter faces upward, and the outlet of the cloth bag 301 is set in the mixing drum 20. When the powder enters the mixing drum 20 and is stirred, a large amount of dust will be generated. At this time, a part (a small amount) of the dust generated will enter the dustproof shell 302 from the outlet of the cloth bag 301 (the area formed is much smaller than the upper end surface of the mixing drum 20), that is, the generated dust will move upward, overflow the mixing drum 20 along the outlet, enter the cloth bag 301, and finally enter the dustproof shell 302, but most of the dust will move in the funnel. The outlet of the bag 301 is blocked by the bag 301 and remains in the mixing drum 20. The reason is that the side wall of the outlet of the bag 301 forms an acute angle with the upper end surface of the mixing drum 20. When the dust moves upward, part of the dust temporarily stays on the outlet of the bag 301 when it hits the outlet of the bag 301, and the other part of the dust enters the acute angle formed by the outlet of the bag 301 and the mixing drum 20 under the action of the airflow. As time goes by, the dust temporarily retained at the outlet of the bag 301 returns to the mixing drum 20 along with the powder (during this process, powder will continue to be added to the mixing drum 20). The dust temporarily retained in the acute angle formed by the outlet of the bag 301 and the mixing drum 20 will gradually accumulate and fall back into the mixing drum 20 again under the action of gravity.

[0047] In order to perform secondary blocking on the dust overflowing from the mixing drum 20 , the inlet of the cloth bag 301 is shaped like a funnel, and the setting direction of the funnel-shaped inlet is consistent with the setting direction of the powder barrel 10 .

[0048] When setting the inlet of the bag 301, it is also set to a funnel shape, with the small diameter facing downward and the large diameter facing upward. The advantage of this setting is that it can block the dust in the dustproof shell 302 twice (the first blockage occurs at the connection between the outlet of the bag 301 and the mixing drum 20), again preventing the dust from overflowing from the inlet of the bag 301, better controlling the dust, and facilitating subsequent collection work. The reason for the secondary blockage is that the angle formed between the inlet of the bag 301 and the dustproof shell 302 is an obtuse angle. At this time, the dust will temporarily remain on the outer wall of the inlet of the bag 301 and the inner wall of the dustproof shell 302. Then, under the action of the air intake component 303, the dust temporarily remaining on the outer wall of the inlet of the bag 301 and the inner wall of the dustproof shell 302 will be blown down. Then, under the action of the dust collecting component 304, the dust processing and collection will be completed. At the same time, blocking the dust twice can better prevent dust from overflowing and causing dust diffusion.

[0049] The above disclosure is only a preferred embodiment of the present application, and it is certainly not intended to limit the scope of the rights of the present application. A person skilled in the art can understand that all or part of the processes of the above embodiments and equivalent changes made in accordance with the claims of the present application are still within the scope of the present application.

Claims

1. A powder coating and dust removal device, which is installed between the powder drum and the mixing drum and is sealed; characterized in that: It includes a dust-proof component, which includes a cloth bag and a dust-proof shell. Connectors are provided at both ends of the cloth bag, and the ends of the connectors are detachably connected to the powder barrel and the mixing barrel respectively. The dust-proof shell wraps the cloth bag, and the opposite ends of the dust-proof shell are sealed and connected to the connectors at both ends of the cloth bag to form a sealed cavity; an air intake component and a dust collecting component are provided on the dust-proof shell, the air intake component is used to inflate the sealed cavity, and the dust collecting component is used to extract powder and dust in the sealed cavity.

2. The powder coating and dust removal device according to claim 1, characterized in that: The air intake assembly includes an air intake pipe, a first valve and an inert gas storage tank. The outlet of the air intake pipe is connected to the dustproof housing through a sealing ring. The first valve is arranged on the air intake pipe, and the outlet of the inert gas storage tank is connected to the inlet of the air intake pipe.

3. The powder coating and dust removal device according to claim 1, characterized in that: The dust collecting assembly includes an air outlet pipe, a second valve and a dust collecting bag. The inlet of the air outlet pipe is connected to the dustproof shell through a sealing ring. The second valve is arranged on the air outlet pipe. The inlet of the dust collecting bag is detachably connected to the outlet of the air outlet pipe.

4. The powder coating and dust removal device according to claim 1, characterized in that: The air intake assembly is arranged above the dust collecting assembly.

5. The powder coating and dust removal device according to claim 1, characterized in that: The dustproof housing is provided with a sealing member, which covers and seals the connection between the connector and the dustproof housing to ensure the sealing performance of the dustproof housing.

6. The powder coating and dust removal device according to claim 1, characterized in that: The outlets of the cloth bags are all in the shape of a funnel, and the small diameter of the funnel-shaped outlet is arranged toward the mixing drum.

7. The powder coating and dust removal device according to claim 1, characterized in that: The shape of the inlet of the cloth bag is funnel-shaped, and the setting direction of the funnel-shaped inlet is consistent with the setting direction of the powder barrel.

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