Filtering device of spice extracting tank

Abstract

The utility model discloses a filtering device of a spice extracting tank, the spice extracting tank comprises a heat preservation barrel, a container upper sealing head arranged above the heat preservation barrel and a container bottom sealing head arranged below the heat preservation barrel, a filtering barrel is arranged in the heat preservation barrel, and the top of the filtering barrel is arranged above the barrel; the middle part is in a hollow cylinder shape and is provided with a filtering assembly, the filtering assembly comprises a fixing rod and a filtering assembly body connected with the fixing rod through a bearing, and the fixing rod is externally connected with an electric telescopic rod; and the lower part of the filter cartridge is provided with a slag discharge channel. Compared with the prior art, the device has the advantages that a double-layer filter screen structure is adopted, and the aperture of the first-layer filter screen is larger than that of the second-layer filter screen, so that coarse and fine two-stage filtration can be realized, the filtration precision is effectively improved, sufficient removal of filter residues is ensured, and an obtained spice extracting solution is high in purity and few in impurities.

Description

Technical Field

[0001] The utility model relates to the field of extraction and processing, in particular to a filtering device for a spice extraction tank. Background Art

[0002] Spices are important raw materials for the seasoning industry and are extracted from certain parts of natural spice plants. In the process of spice extraction, it is necessary to separate the effective ingredients of spices from the cell tissues of plant raw materials. Commonly used methods include steam distillation, solvent extraction and supercritical fluid extraction. These methods usually crush the plant raw materials first, then mix them with the extraction medium, and extract them under certain temperature and pressure conditions to obtain an extract containing spice ingredients. The extract often contains a large amount of plant residues, which need to be further filtered and purified before entering the next process.

[0003] At present, in the process of spice extraction, the extract often contains a large amount of plant tissue residues and other impurities, which need to be filtered and clarified to obtain a high-purity spice product. However, the existing spice extraction tank filtration device generally has the following problems: first, the filtration accuracy is not high, and the filter residue is not completely removed, which affects the quality of the finished product; second, the filtration device has a complex structure, a low degree of automation, and low intermittent operation efficiency; third, the filter residue is easy to clog the filter component, making it difficult to clean and discharge, affecting the continuous and efficient operation of the equipment. Utility Model Content

[0004] The technical problem to be solved by the utility model is to solve the problems of clogging of the filter components and difficulty in cleaning the residues in the filter device of the spice extraction tank in the prior art, and to provide a filter device for the spice extraction tank with a simple structure, high filtering efficiency and easy residue cleaning.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A filtering device for a spice extraction tank, the spice extraction tank comprising a heat-insulating cylinder and a container arranged above the heat-insulating cylinder

[0007] The upper head of the device and the bottom head of the container are arranged below the insulation cylinder. A filter cylinder is arranged in the insulation cylinder, and the top of the filter cylinder is arranged above the cylinder. The middle part is hollow cylindrical, and a filter assembly is arranged in the middle. The filter assembly includes a fixed rod and a filter assembly connected to the fixed rod bearing, and the fixed rod is externally connected to an electric telescopic rod; a slag discharge channel is arranged at the bottom of the filter cylinder.

[0008] Preferably, the filter assembly includes a first layer of filter screen and a second layer of filter screen, the first layer of filter screen is arranged above the second layer of filter screen, and the pore size of the first layer of filter screen is larger than the pore size of the second layer of filter screen.

[0009] Preferably, the electric telescopic rod drives the filter to rotate, and the filter is parallel to the bottom of the cylinder when it is pulled out, and tilts downward when it is pushed in.

[0010] Preferably, a stirring device is provided in the upper head of the container connected to the interior of the insulation cylinder, and the stirring device includes a reduction motor, a coupling, a stirring shaft and a stirring blade; the reduction motor is fixed on the upper head of the container, and drives the stirring shaft to rotate through the coupling, and the stirring blade is in a Japanese shape, fixed at the lower end of the stirring shaft, and located above the filter assembly.

[0011] Preferably, the slag discharge channel is arranged at an angle, and a control valve is also provided on the slag discharge channel, and the bottom end of the slag discharge channel is connected to the slag discharge door of the bottom head of the container.

[0012] Preferably, a vibrator is provided on the slag discharge channel, and the vibrator is excited by an eccentric motor.

[0013] Preferably, a discharge port is also provided on the side of the control valve, the discharge port is connected to a discharge pipe, and the discharge pipe is externally connected to an extraction pump.

[0014] Preferably, a slag discharge door is provided on the bottom cover of the container, and the slag discharge door is connected to the slag discharge channel.

[0015] The beneficial effects that can be achieved by the utility model include the following points:

[0016] (1) Compared with the prior art, the utility model adopts a double-layer filter screen structure. The aperture of the first layer of filter screen is larger than that of the second layer of filter screen, which can achieve coarse and fine two-stage filtration, effectively improve the filtration accuracy, ensure the full removal of filter residue, and make the obtained spice extract high in purity and less in impurities;

[0017] (2) The design of driving the filter to rotate by an electric telescopic rod can effectively prevent the accumulation of filter residue on the filter and cause blockage. When the filter is pulled out, it is parallel to the bottom of the cylinder to form a complete filter layer; when the filter is pushed in, it tilts downward, allowing the filter residue to fall off naturally, greatly reducing the maintenance frequency and maintenance cost of the equipment and increasing the continuous operation time of the filter device;

[0018] (3) The utility model is provided with automated structures such as a stirring device, an electric gate, and a vibration slag discharger, which replace manual operations and reduce labor intensity; the stirring device can prevent material deposition and improve filtration efficiency; the control valve and the filter screen are opened and closed alternately to achieve alternate discharge and collection of filter residue and extract; the vibration slag discharger can loosen the filter residue and facilitate discharge. The above design improves the automation level of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a filtering device of a spice extraction tank;

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

[0021] The above-mentioned figure markings are: 1. insulation cylinder; 2. upper head of container; 3. bottom head of container; 4. filter cylinder; 5. filter assembly; 51. first layer filter screen; 52. second layer filter screen; 6. fixing rod; 7. electric telescopic rod; 8. slag discharge channel; 9. control valve; 10. vibrator; 11. discharge port; 12. discharge pipe; 13. reduction motor; 14. coupling; 15. stirring shaft; 16. stirring blade. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings and examples, but these specific implementation schemes do not limit the protection scope of the present invention in any way.

[0023] Example 1

[0024] See also Figure 1-Figure 2 A filtering device for a spice extraction tank comprises a spice extraction tank body and a filtering device arranged inside the spice extraction tank body. Specifically, the spice extraction tank body comprises a heat preservation cylinder body 1, a container upper head 2 arranged above the heat preservation cylinder body 1, and a container bottom head 3 arranged below the heat preservation cylinder body 1. The filtering device comprises a filter cylinder 4. The top of the filter cylinder 4 is fixed to the top of the cylinder wall of the heat preservation cylinder body 1 and extends into the interior of the heat preservation cylinder body 1. The middle part of the filter cylinder 4 is a hollow cylinder, and a filtering component 5 is arranged in the middle part.

[0025] In this embodiment, the filter assembly 5 includes a fixed rod 6 and a filter screen connected to the bearing of the fixed rod 6. One end of the fixed rod 6 is movably connected to the inner wall of the filter cylinder 4, and the other end extends to the outside of the insulation cylinder 1 and is connected to an electric telescopic rod 7.

[0026] The filter screen includes a first layer of filter screen 51 and a second layer of filter screen 52. Each layer of filter screen is divided into two groups and is arranged on both sides of the filter cylinder 4. The first layer of filter screen 51 is arranged above the second layer of filter screen 52, and the aperture of the first layer of filter screen 51 is larger than the aperture of the second layer of filter screen 52, so that coarse and fine filtering can be achieved.

[0027] The electric telescopic rod 7 is arranged on the outside of the filter cylinder 4, and its telescopic end is connected to the outer end of the fixed rod 6. By controlling the extension and retraction of the electric telescopic rod 7, the filter screen can be driven to rotate axially around the fixed rod 6. When working, the electric telescopic rod 7 pulls the filter screen outward, and each two groups of filter screens are parallel to the bottom of the insulation cylinder 1 under the pull of the electric telescopic rod 7, and the two groups of filter screens are against each other to form a layer of integral filter screen; when the filtering work is completed, the electric telescopic rod 7 drives the filter screen to tilt downward, and the filter screen will swing left and right during the tilting process to shake off the filter residue.

[0028] The lower part of the filter cylinder 4 is connected with a slag discharge channel 8, which is inclined and connected to a slag discharge door on the bottom cover 3 of the container at its lower end. A control valve 9 is also provided at the top of the slag discharge channel 8, and the discharge of the spice residue is determined by controlling the opening and closing of the control valve 9.

[0029] A vibrator 10 is provided on the slag discharge channel 8. The vibrator 10 is excited by an eccentric motor and can be started during the slag discharge process to loosen the filter residue, prevent blockage, and facilitate discharge.

[0030] A discharge port 11 is also connected to one side of the control valve 9, and the discharge port 11 is connected to a discharge pipe 12, and the other end of the discharge pipe 12 is connected to an extraction pump (not shown in the figure), which can extract the filtered extract and transport it to the next process to achieve continuous production.

[0031] In addition, a reduction motor 13 is fixed on the upper end cap 2 of the container, and the output shaft of the reduction motor 13 is connected to the upper end of the stirring shaft 15 through a coupling 14. A Japanese-shaped stirring blade 16 is fixed to the lower end of the stirring shaft 15, and the stirring blade 16 is located directly above the filter assembly 5. The reduction motor 13 drives the stirring shaft 15 and the stirring blade 16 to rotate through the coupling 14 to stir the material in the extraction tank, prevent material deposition, and improve the filtering efficiency.

[0032] The device also includes a PLC control system. The above-mentioned electric telescopic rod 7, control valve 9, stirring motor, vibration motor and extraction pump are all controlled by an external PLC control system. The linkage and monitoring of each actuator are realized according to the production process requirements. The most important thing is to control the control valve and the filter screen to open and close alternately to realize the alternate discharge and collection of filter residue and extract. When the control valve is closed and the filter screen is aligned to form a whole layer of filter screen, the extract is filtered. When the extraction is completed, the control valve is opened and the filter screen pours the filter residue downward.

[0033] The working principle and method of the filtering device of the above-mentioned spice extraction tank are:

[0034] In the first step, the electric telescopic rod 7 is started to drive the first filter layer 51 and the second filter layer 52 to rotate and spread out horizontally. At this time, the two groups of filter screens are opened and pressed against each other to form a complete filter layer. The control valve 9 is closed to form a whole semi-enclosed container.

[0035] In the second step, the mixed solution of the crushed spice plant raw materials and the extraction solvent in proportion is added into the spice extraction tank through the feed port on the upper head 2 of the container, and then the stirring motor is started to fully stir the mixed solution through the Japanese-shaped stirring blade 16 set in the upper head 2 of the container.

[0036] In the third step, the extract flows into the filter cartridge 4 through the filter assembly 5 under the action of gravity, while the coarse solid particles are retained on the surface of the first filter screen 51, and the finer residues are intercepted by the second filter screen 52, thereby achieving coarse and fine filtration.

[0037] In the fourth step, the filtered extract flows out from the bottom of the filter cylinder 4 and enters the next process through the discharge port 11 and the discharge pipe 12 to achieve continuous production.

[0038] In the fifth step, the filter residue trapped on the filter screen rotates together with the filter assembly 5 driven by the electric telescopic rod 7 and gradually tilts downward; while the filter screen tilts downward, the control valve 9 at the top of the slag discharge channel 8 is opened, and the vibrator 10 is started at the same time, and high-frequency vibration is generated under the excitation of the eccentric motor, so that the filter residue attached to the filter screen is shaken off, and falls into the slag discharge channel 8 under the action of vibration and gravity, and is discharged by the slag discharge door and the filter residue is collected.

[0039] Step 6. After a certain period of time, the electric telescopic rod 7 drives the filter screen to reset, the control valve 9 is closed, and the vibrator 10 stops, completing a filtering and slag removal cycle.

[0040] In summary, the spice extraction tank filtering device provided in this embodiment realizes the automatic separation and discharge of filter residues by driving the rotation and angle adjustment of the double-layer filtering assembly through the electric telescopic rod, and combines the vibrator and the automatic control valve, which greatly reduces the labor intensity of manual labor. At the same time, the PLC is used to realize automatic control, which improves the continuity and stability of the equipment operation, and provides an efficient and convenient filtering means for spice extraction production.

Claims

1. A filtering device for a spice extraction tank, the spice extraction tank comprising a heat preservation cylinder, an upper container head arranged above the heat preservation cylinder, and a bottom container head arranged below the heat preservation cylinder, characterized in that: A filter cartridge is arranged in the heat-insulating cylinder, and the top of the filter cartridge is arranged above the cylinder; the middle part is hollow cylindrical, and a filter assembly is arranged in the middle part, and the filter assembly includes a fixed rod and a filter assembly connected to the fixed rod bearing, and the fixed rod is externally connected to an electric telescopic rod; a slag discharge channel is arranged at the bottom of the filter cartridge.

2. The filtering device for the spice extraction tank according to claim 1, characterized in that: The filter assembly comprises a first filter layer and a second filter layer. The first filter layer is arranged above the second filter layer. The aperture of the first filter layer is larger than that of the second filter layer.

3. The filtering device for the spice extraction tank according to claim 2, characterized in that: The electric telescopic rod drives the filter screen to rotate. The filter screen is parallel to the bottom of the cylinder when it is pulled out, and tilts downward when it is pushed in.

4. The filtering device for the spice extraction tank according to claim 1, characterized in that: The upper head of the container is connected to the inside of the insulation cylinder and is provided with a stirring device, which includes a reduction motor, a coupling, a stirring shaft and a stirring blade; the reduction motor is fixed on the upper head of the container and drives the stirring shaft to rotate through the coupling. The stirring blade is in a Japanese shape and is fixed at the lower end of the stirring shaft and is located above the filter assembly.

5. The filtering device for the spice extraction tank according to claim 1, characterized in that: The slag discharge channel is arranged in an inclined manner, and a control valve is also arranged on the slag discharge channel. The bottom end of the slag discharge channel is connected to the slag discharge door of the bottom head of the container.

6. The filtering device for the spice extraction tank according to claim 5, characterized in that: The slag discharge channel is provided with a vibrator, which is excited by an eccentric motor.

7. The filtering device for the spice extraction tank according to claim 5, characterized in that: A discharge port is also arranged on the side of the control valve, and the discharge port is connected with a discharge pipe, and the discharge pipe is externally connected with an extraction pump.

8. The filtering device for the spice extraction tank according to claim 1, characterized in that: The bottom cover of the container is provided with a slag discharge door, which is communicated with the slag discharge channel.

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