Essential oil recovery device for volatile gas in dust during spice crushing

Abstract

The utility model discloses an essential oil recovery device for volatile gas in dust during spice crushing, which comprises a sealed shell, and an air inlet pipe and an exhaust pipe are respectively arranged on the shell; the air inlet pipe is communicated with a dust collecting device of the crusher, and a fan is mounted on the exhaust pipe; a partition plate is arranged in the shell and divides the inner space of the shell into a first cavity and a second cavity which are independent. A communicating part is arranged between the first cavity and the second cavity; the first cavity is communicated with the air inlet pipe, and the second cavity is communicated with the exhaust pipe; a cooling mechanism is arranged in the first cavity or the second cavity; dust generated when spices are broken is drained into the shell through the air inlet pipe, the dust is cooled through the cooling mechanism in the shell, so that volatile gas of spice essential oil contained in the dust is condensed to be in a liquid state, the spice essential oil in the dust can be recycled, and the oil yield of the spices is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of spice crushing equipment, and in particular relates to an essential oil recovery device for volatile gases in dust during spice crushing. Background Technology

[0002] The crushing of spices generates a large amount of dust, which poses health and safety risks to production. Dust collection equipment is typically installed in production workshops to remove dust, and workers are required to wear protective masks to ensure their health.

[0003] These dust particles contain gaseous spice essential oils. While dust removal equipment reduces the amount of dust in the workshop during the dust removal process, it also discharges the gaseous spice essential oils, resulting in waste and limiting the upper limit of spice oil yield. Utility Model Content

[0004] The purpose of this invention is to provide a device for recovering essential oils from the volatile gases in the dust generated during spice crushing, thereby recovering gaseous spice essential oils from the dust generated during spice crushing.

[0005] The present invention adopts the following technical solution: an essential oil recovery device for volatile gases in dust during spice crushing, comprising a sealed shell, on which an air inlet pipe and an exhaust pipe are respectively provided;

[0006] The air intake pipe is connected to the dust collection device of the crusher, and a fan is installed on the exhaust pipe;

[0007] The shell is provided with a partition, which divides the internal space of the shell into an independent first cavity and a second cavity; there is a connecting part between the first cavity and the second cavity;

[0008] The first chamber is connected to the intake pipe, and the second chamber is connected to the exhaust pipe; a cooling mechanism is provided in either the first or second chamber.

[0009] Furthermore, the intake pipe and exhaust pipe are located on opposite sides of the top of the housing;

[0010] The partitions are installed vertically;

[0011] The connecting part is located at the bottom of the first cavity and the second cavity.

[0012] Furthermore, the cooling mechanism is laterally positioned between the first cavity and the partition or between the second cavity and the partition.

[0013] Furthermore, the cooling mechanism covers the cross-section of the first or second cavity.

[0014] Furthermore, the cooling mechanism includes a frame, and a cold water coil is installed inside the frame. The inlet and outlet of the cold water coil both pass through the shell and are connected to an external water source.

[0015] Furthermore, a filter screen is installed between the cold water coil and the air intake pipe.

[0016] Furthermore, the filter screen is mounted on the frame.

[0017] Furthermore, a support plate for fixing the frame is provided in the first or second cavity.

[0018] Furthermore, a flow guide section is provided at the bottom of the casing, and an oil drain pipe is provided at the bottom of the flow guide section.

[0019] The beneficial effects of this utility model are: This utility model guides the dust generated when spices are crushed into the shell through the air inlet pipe, and cools the dust through the cooling mechanism inside the shell, so that the volatile gas of spice essential oil contained in the dust condenses into liquid, which can recover the spice essential oil in the dust and improve the spice oil yield. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the external structure of an essential oil recovery device for volatile gases in dust during spice pulverization, according to an embodiment of the present invention.

[0021] Figure 2 This is a cross-sectional structural schematic diagram of an essential oil recovery device for volatile gases in dust generated during spice pulverization, according to an embodiment of the present invention.

[0022] Figure 3 This is another cross-sectional structural schematic diagram of an essential oil recovery device for volatile gases in dust during spice pulverization, according to an embodiment of this utility model.

[0023] Figure 4 This is a schematic diagram of the internal structure of an essential oil recovery device for volatile gases in dust generated during spice pulverization, according to an embodiment of the present invention.

[0024] Figure 5 This is a schematic diagram of the cooling mechanism in an embodiment of the present invention.

[0025] The components are: 10. Housing; 11. Exhaust pipe; 12. Intake pipe; 13. Guide section; 14. Oil drain pipe;

[0026] 20. Partition;

[0027] 30. Cooling mechanism; 31. Cold water coil; 32. Frame; 33. Filter screen; 34. Tray. Detailed Implementation

[0028] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0029] When spices are crushed, the essential oils are released from the cells and diffuse into the air as volatile components. For example, when a cinnamon stick is ground into powder, the essential oils in the cinnamon quickly diffuse into the air, releasing the aroma of cinnamon. These volatile spice essential oils that diffuse into the air are released along with the dust generated during crushing, resulting in a low oil yield from the spices.

[0030] This utility model discloses an essential oil recovery device for volatile gases emitted from dust during spice pulverization, such as... Figure 1 , Figure 2 and Figure 3 As shown, the device includes a sealed housing 10, on which an air inlet pipe 12 and an exhaust pipe 11 are respectively provided; the air inlet pipe 12 is connected to the dust collection device of the crusher, and a fan is installed on the exhaust pipe 11; a partition 20 is provided inside the housing 10, which divides the internal space of the housing 10 into an independent first cavity and a second cavity; there is a communication between the first cavity and the second cavity; the first cavity is connected to the air inlet pipe 12, and the second cavity is connected to the exhaust pipe 11; a cooling mechanism 30 is provided in the first cavity or the second cavity.

[0031] This invention uses the air inlet pipe 12 to guide the dust generated during spice crushing into the housing 10. The cooling mechanism 30 within the housing 10 cools the dust, causing the volatile spice essential oils contained in the dust to condense into a liquid state. This allows for the recovery of spice essential oils from the dust, increasing the spice oil yield. In this invention, the shape and structure of the housing 10 can be designed according to site conditions. Specifically, the temperature of the cooling mechanism 30 is set according to the type of spice essential oil, typically designed to be the condensation temperature of the spice essential oil, such as -5℃ to -15℃. This temperature range is lower than the condensation temperature of the spice essential oil, thus lowering the overall temperature within the device, meaning the overall temperature inside the device is less than or equal to the condensation temperature. This temperature range design also lowers the temperature inside the crusher when the gas discharged from the exhaust pipe 11 is reintroduced, reducing the temperature within the crusher. After cooling, this minimizes the amount of powder adhering to the crusher.

[0032] By designing the baffle 20, the flow path length of dust within the housing 10 can be increased, thereby increasing the condensation rate of volatile spice essential oils in the dust and thus improving the recovery rate.

[0033] In one embodiment, the intake pipe 12 and the exhaust pipe 11 are located on opposite sides of the top of the housing 10; the partition 12 is vertically arranged; and the connecting portion is located at the bottom of the first cavity and the second cavity. In this case, the vertical length of the housing 10 is greater than its length in other directions, which allows dust to enter from the top of the housing 10, flow downwards through the bottom of the housing 10, and then flow back to the top of the other side of the housing 10. This maximizes the flow path length of the dust within the housing 10.

[0034] The cooling mechanism 30 is laterally positioned between the first cavity and the partition 20 or between the second cavity and the partition 20. The cooling mechanism 30 covers the entire cross-section of the first or second cavity. With this design, when gas flows through the first or second cavity, the temperature of the entire cross-section of the cavity is below the spice condensation temperature, avoiding situations where individual locations have high temperatures and poor condensation effects.

[0035] like Figure 4 and Figure 5 As shown, the cooling mechanism 30 includes a frame 32, and a chilled water coil 31 is disposed inside the frame 32. The inlet (not shown) and outlet (not shown) of the chilled water coil 31 both pass through the housing 10 and are connected to an external liquid source. Furthermore, the portion of the chilled water coil 31 that passes through the housing 10 needs to be properly sealed. Additionally, the liquid in the chilled water coil 31 can be antifreeze, which can further lower its temperature.

[0036] Since the dust generated during spice crushing contains impurities, it can be filtered before entering the air intake pipe 11. Furthermore, a filter screen 33 is installed between the cooling water coil 31 and the air intake pipe 12. This further filters the dust. Moreover, since the temperature of the cooling water coil 31 is typically set below the spice condensation temperature, volatile spice essential oils condense before approaching the condenser coil 32. Most of the condensed spice essential oil adheres to the filter screen 33 and then falls downwards under the influence of gravity and airflow. By installing the filter screen 33, the amount of condensed spice essential oil adhering to the cooling water coil 31 is minimized, improving the cooling effect of the cooling water coil 31.

[0037] More preferably, a flow-guiding mechanism can be provided on the filter screen 33, so that the condensed spice essential oil on the filter screen 33 flows down along the flow-guiding mechanism and avoids adhering to the cold water coil 31. The flow-guiding mechanism can be a linear wire, such as stainless steel wire that meets food-grade standards.

[0038] As a preferred implementation, the filter 33 is mounted on the frame 32. This makes its protective effect on the chilled water coil 31 more pronounced. Of course, multiple filters 33 can also be installed in the airflow direction to further enhance the desired effect.

[0039] To increase the connection stability of the cooling mechanism 30, a support plate 34 for fixing the frame 32 is provided in the first or second cavity. The support plate 34 is connected to the frame 32, increasing the robustness of the cooling mechanism 30. Moreover, the two can be connected by bolts, and can be disassembled for cleaning when the filter screen 33, cold water coil 31 or frame 32 needs to be cleaned, reducing maintenance difficulty.

[0040] In one embodiment, the number of cooling mechanisms 30 can be multiple, but increasing the number will increase the consumption of cold source and increase production costs. Therefore, the number of cooling mechanisms 30 can be specifically designed according to the size of each component and the production cost, so as to achieve a balance between production costs and spice essential oil recovery rate.

[0041] Under the combined action of the aforementioned components, the spice essential oils in the dust will condense, and the condensed spice essential oils will collect at the bottom of the housing 10 for recycling. In this embodiment, the bottom of the housing 10 is provided with a guide section 13, and the bottom of the guide section 13 is provided with an oil drain pipe 14.

[0042] The guide section 13 can be designed as a funnel, so that the spice essential oil can be collected into the bottom oil drain pipe 14. A valve can also be installed on the oil drain pipe 14, which can be opened or closed as needed to collect the spice essential oil.

Claims

1. A device for recovering essential oils from volatile gases emitted during spice pulverization dust, characterized in that, It includes a sealed housing (10), on which an air inlet pipe (12) and an exhaust pipe (11) are respectively provided; The air inlet pipe (12) is connected to the dust collection device of the crusher, and a fan is installed on the exhaust pipe (11); The housing (10) is provided with a partition (20), which divides the internal space of the housing (10) into an independent first cavity and a second cavity; the first cavity and the second cavity have a connecting portion; The first cavity is connected to the air intake pipe (12), and the second cavity is connected to the exhaust pipe (11); a cooling mechanism (30) is provided in the first cavity or the second cavity.

2. The essential oil recovery device for volatile gases in dust generated during spice pulverization as described in claim 1, characterized in that, The intake pipe (12) and the exhaust pipe (11) are located on opposite sides of the top of the housing (10); The partition (20) is arranged vertically; The connecting portion is located at the bottom of the first cavity and the second cavity.

3. The essential oil recovery device for volatile gases in dust generated during spice pulverization as described in claim 2, characterized in that, The cooling mechanism (30) is laterally disposed between the first cavity and the partition (20) or between the second cavity and the partition (20).

4. The essential oil recovery device for volatile gases in dust during spice pulverization as described in claim 3, characterized in that, The cooling mechanism (30) covers the cross-section of the first cavity or the second cavity.

5. The essential oil recovery device for volatile gases in dust generated during spice pulverization as described in any one of claims 2-4, characterized in that, The cooling mechanism (30) includes a frame (32), and a cold water coil (31) is provided inside the frame (32). The inlet and outlet of the cold water coil (31) pass through the housing (10) and are connected to an external water source.

6. The essential oil recovery device for volatile gases in dust generated during spice pulverization as described in claim 5, characterized in that, A filter screen (33) is provided between the cold water coil (31) and the air inlet pipe (12).

7. The essential oil recovery device for volatile gases in dust generated during spice pulverization as described in claim 6, characterized in that, The filter (33) is mounted on the frame (32).

8. The essential oil recovery device for volatile gases in dust generated during spice pulverization as described in claim 6 or 7, characterized in that, The first cavity or the second cavity is provided with a support plate (34) for fixing the frame (32).

9. The essential oil recovery device for volatile gases in dust during spice pulverization as described in claim 8, characterized in that, The bottom of the housing (10) is provided with a flow guide section (13), and the bottom of the flow guide section (13) is provided with an oil drain pipe (14).

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