A filtration apparatus

Abstract

The utility model discloses a filter equipment, including filter module, and this filter module includes belt filter, upper sealed cavity, this upper sealed cavity sets up the above at the filter screen belt bearing section of belt filter, lifting mechanism, through this lifting mechanism drive upper sealed cavity vertical lifting movement, liquid injection pipeline, this liquid injection pipeline is connected with upper sealed cavity, lower sealed cavity, this lower sealed cavity sets up the below at the filter screen belt bearing section corresponding to upper sealed cavity, lifting mechanism drive upper sealed cavity down, extrude filter screen belt and lower sealed cavity abut, to form filter cavity. The utility model drives upper sealed cavity vertical down through lifting mechanism, extrude filter screen belt and lower sealed cavity abut, forms filter cavity at the filter screen belt bearing section, and this cavity can control the essential oil that liquid injection pipeline injects in the space surrounded by upper and lower sealed cavity and filter screen belt, reduces the splashing or overflow loss of essential oil because of the open exposure in the liquid injection or filter process.

Description

Technical Field

[0001] This utility model relates to the field of essential oil extraction technology, and in particular to a filtration device. Background Technology

[0002] After distillation or solvent extraction, essential oils often contain solids such as petal fragments and plant fibers. Therefore, they are typically filtered to remove these solids. Currently, filtration systems with filter bags / screens are commonly used for essential oil purification. The core principle is to inject the essential oil into a sealed container with built-in filter media (bags or screens), which traps solid impurities. However, filter residue continuously adheres to the surface of the filter bag or screen, and the container structure makes it difficult to remove the residue. As the residue accumulates, the pores of the filter media become clogged, reducing the essential oil permeation rate and lowering filtration efficiency.

[0003] To address the issues with tank filtration equipment, belt filters have emerged in the industry. These filters utilize conveyor belts with perforated surfaces (filter belts). The essential oil to be filtered undergoes solid-liquid separation in the carrying section of the conveyor belt (liquid essential oil permeates the perforations, while solid filter residue is retained on the surface of the belt). The conveyor drives the filter belt to move intermittently or continuously, causing the area of ​​the belt with retained filter residue to leave the filtration area, while unused or cleaned areas of the belt simultaneously enter the filtration area, thus preventing filter residue from accumulating in a single area.

[0004] However, existing belt filters have the following drawbacks in practical applications: Existing belt filters usually only have simple baffle structures on both sides of the conveyor belt. However, due to the certain fluidity of essential oils and the low viscosity of some types, essential oils are prone to overflow from the gap between the conveyor belt and the fixed parts of the equipment. Furthermore, during liquid injection, essential oils are prone to splashing due to impact. Some essential oils are lost along the edge of the conveyor belt without being filtered by the filter mesh, resulting in raw material loss. Utility Model Content

[0005] Therefore, in order to overcome the above-mentioned shortcomings, this utility model provides a filtration device, comprising: A filtration module, which includes a belt filter; The upper sealing cavity is located above the filter belt carrying section of the belt filter. The lifting mechanism drives the upper sealing cavity to move vertically up and down. The injection pipe is connected to the upper sealing cavity; The lower sealing cavity is located below the filter belt carrying section, corresponding to the upper sealing cavity; The lifting mechanism drives the upper sealing cavity downward, squeezing the filter belt to abut against the lower sealing cavity to form a filter cavity.

[0006] This invention uses a lifting mechanism to drive the upper sealing cavity to descend vertically, squeezing the filter belt to abut against the lower sealing cavity, forming a filter cavity in the bearing section of the filter belt. This cavity can control the essential oil injected into the injection pipe within the space enclosed by the upper and lower sealing cavities and the filter belt, reducing the loss of essential oil due to splashing or overflow caused by exposure during injection or filtration.

[0007] Furthermore, rubber rings are provided on the contact surfaces of the upper sealing cavity, lower sealing cavity, and filter belt.

[0008] This invention incorporates rubber rings at the contact surfaces of the upper and lower sealing cavities and the filter belt. Utilizing the elastic deformation properties of rubber, when the lifting mechanism drives the upper sealing cavity downwards and compresses, the rubber rings adaptively fill the tiny gaps between the sealing surface and the filter belt, forming a flexible and tight seal. Furthermore, during the compression process of the upper and lower sealing cavities, the rubber rings absorb some of the compressive force, preventing direct rigid contact between hard components and extending the overall service life of the equipment.

[0009] Furthermore, the filtration module also includes a discharge port, which is located at the discharge end of the belt filter.

[0010] This invention features a discharge port at the discharge end of a belt filter, which guides the filter residue on the filter belt to be discharged directionally along the discharge port, thus facilitating the collection of the filter residue.

[0011] Furthermore, the filtration module also includes a flushing pipe connected to a water source, which is located above the transition section of the filter belt.

[0012] This invention features a flushing pipe connected to a water source in the transition section of the filter belt. During the filter circulation process, the water flow impact force washes away fine particles embedded in the mesh, and the water flow can also pass through the mesh to wash away filter residue attached to the surface of the filter belt.

[0013] Furthermore, the filtration module also includes a baffle plate that encloses the flushing pipe, and the baffle plate has an open structure on the side near the filter belt.

[0014] The baffle of this utility model encloses the flushing pipe, retaining only the open structure on the side near the filter screen. This confines the water flow within the local space formed by the baffle and the filter screen, reducing water splashing to the surrounding area. In addition, after the baffle encloses the flushing pipe, it can guide the water flow to flow directionally towards the filter screen surface along the open opening, reducing the water flow from spreading to both sides and allowing the water flow impact force to be concentrated on the area of ​​the filter screen to be cleaned.

[0015] Furthermore, a waste liquid discharge tank is provided below the transition section of the filter belt.

[0016] This invention features a waste liquid discharge tank located below the transition section of the filter belt. This tank can collect rinsing waste liquid and guide it directionally to a sewage pipe or collection container, thus preventing waste liquid from overflowing.

[0017] Furthermore, the filtration device also includes a collection module, which comprises: Waste liquid collection tank, wherein the waste liquid collection tank is located below the outlet of the waste liquid discharge tank; An essential oil collection tank is located on one side of a waste liquid collection tank. The filtration device also includes an oil drain pipe, one end of which is connected to the lower sealing cavity, and the other end is located in the essential oil collection tank.

[0018] This invention uses a waste liquid collection tank to receive the rinsing waste liquid from the waste liquid discharge tank, thus achieving independent collection of waste liquid. After filtration, the essential oil is introduced into the essential oil collection tank from the lower sealed cavity through the oil discharge pipe, thereby achieving the collection of essential oil.

[0019] This utility model has the following advantages: This invention uses a lifting mechanism to drive the upper sealing cavity to descend vertically, squeezing the filter belt to abut against the lower sealing cavity, forming a filter cavity in the bearing section of the filter belt. This cavity can control the essential oil injected into the injection pipe within the space enclosed by the upper and lower sealing cavities and the filter belt, reducing the loss of essential oil due to splashing or overflow caused by exposure during injection or filtration. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the filtration equipment; Figure 2 yes Figure 1 A cross-sectional schematic diagram of the filtration device shown. Figure 3 yes Figure 1 A partial structural schematic diagram of the filtration device shown. Figure 4 yes Figure 3 A side view of a portion of the structure of the filtration device shown. Figure 5 yes Figure 3 A cross-sectional schematic diagram of a portion of the filtration device shown. Figure 6 yes Figure 5 An enlarged schematic diagram of a portion of structure A in the filtration device shown; In the picture: 100. Rack; 200. Collection module; 210. Waste liquid collection tank; 220. Essential oil collection tank; 300. Lifting mechanism; 310. Power unit; 320. Connecting rod; 330. Tie rod; 400. Filter module; 410. Discharge port; 420. Belt filter; 421. Filter belt; 430. Flushing pipe; 440. Waste liquid discharge tank; 450. Water baffle; 500. Lower sealing cavity; 600. Upper sealing cavity; 700. Injection pipeline. Detailed Implementation

[0021] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0022] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0023] As described in the background section, existing belt filters typically only have simple baffle structures on both sides of the conveyor belt. However, due to the fluidity of essential oils and the low viscosity of some types, essential oils are prone to overflow from the gap between the conveyor belt and the fixed parts of the equipment. Furthermore, during liquid injection, essential oils are prone to splashing due to impact, and some essential oils are lost along the edge of the conveyor belt without being filtered by the filter mesh, resulting in raw material loss.

[0024] Example 1: Therefore, in order to solve the above-mentioned technical problems existing in the prior art, this embodiment provides a filtration device, such as... Figures 1-5 As shown, the filtration device includes: Filter module 400, which includes belt filter 420; The upper sealing cavity 600 is located above the carrying section of the filter belt 421 of the belt filter. The lifting mechanism 300 drives the upper sealing cavity to move vertically up and down. Injection pipe 700, which is connected to the upper sealing cavity; The lower sealing cavity 500 is located below the filter belt carrying section, corresponding to the upper sealing cavity; The lifting mechanism drives the upper sealing cavity downward, squeezing the filter belt to abut against the lower sealing cavity to form a filter cavity.

[0025] Specifically, during use, the lifting mechanism is activated, controlling it to move the upper sealing cavity vertically downwards. The bottom of the upper sealing cavity gradually approaches the upper surface of the filter belt carrying section, continuing downwards until it squeezes the filter belt. At this time, the filter belt is subjected to the squeezing force of the upper sealing cavity, and its lower surface comes into close contact with the upper surface of the lower sealing cavity below, finally forming a filter cavity. After the cavity is formed, the valve of the injection pipe is opened, and the filter essential oil is delivered to the upper sealing cavity through the injection pipe, flowing evenly along the inner wall of the upper sealing cavity to the surface of the filter belt carrying section. Because the filter belt has filter holes on its surface, the liquid components in the essential oil permeate through the mesh under gravity and flow downwards into the lower sealed cavity. The lower sealed cavity temporarily stores the filtered clean essential oil, while solid impurities in the essential oil (such as plant residues and particulate pollutants) are trapped by the filter holes and remain on the upper surface of the filter belt, achieving solid-liquid separation. After the preset filtration time, the lifting mechanism moves the upper sealed cavity to a safe height, the belt filter starts, and the filter belt slowly circulates at a preset speed. After moving a preset length, the area of ​​the filter belt that has not undergone filtration or has not been cleaned moves between the upper and lower sealed cavities, and the above process is repeated.

[0026] In addition, the filtration device may also include a frame 100, on which the filtration module, upper sealing cavity, lower sealing cavity, and lifting mechanism can all be mounted. The lifting mechanism can be selected from pneumatic cylinders, electric cylinders, and hydraulic cylinders to directly drive the vertical linear movement of the upper sealing cavity, or it can employ... Figure 4 , 5 The structure shown includes: Power unit 310; Link 320, one end of which is pivotally connected to the output end of the power unit; Tie rod 330, the tie rod is provided in two sets, one end of the tie rod is pivotally connected to the frame, the other end is pivotally connected to the end of the other set of tie rods, and the other end of the other set of tie rods is connected to the upper sealing cavity; The connecting rod is connected to the pivot shaft of the two sets of tie rods.

[0027] The power unit includes, but is not limited to, cylinders, electric cylinders, hydraulic cylinders, or other devices capable of driving linear movement of components.

[0028] In this embodiment, the upper sealing cavity is driven vertically downward by the lifting mechanism, which squeezes the filter belt to abut against the lower sealing cavity, forming a filter cavity in the bearing section of the filter belt. This cavity can control the essential oil injected into the injection pipeline within the space enclosed by the upper and lower sealing cavities and the filter belt, reducing the loss of essential oil due to splashing or overflow caused by exposure during injection or filtration.

[0029] For example, rubber rings are provided on the contact surfaces of the upper sealing cavity, the lower sealing cavity, and the filter belt.

[0030] By utilizing the elastic deformation properties of rubber, when the lifting mechanism drives the upper sealing chamber downwards and compresses, the rubber ring can adaptively fill the tiny gaps between the sealing surface and the filter belt, forming a flexible and tight seal. Furthermore, during the compression process between the upper and lower sealing chambers, the rubber ring can absorb some of the compressive force, preventing direct rigid contact between hard components and extending the overall service life of the equipment.

[0031] For example, the filtering module further includes a discharge port 410, which is located at the discharge end of the belt filter.

[0032] When the solid filter residue trapped on the surface of the filter belt moves to the discharge end, as the filter belt continues to move, it is guided by the turning roller at the discharge end to turn downward (the bearing surface of the filter belt gradually changes from horizontal to inclined downward). The filter residue loses the horizontal bearing support of the filter belt and is gradually separated from the surface of the filter belt by its own weight and the turning inertia of the filter belt, and enters the discharge port and is discharged along the discharge port.

[0033] For example, such as Figure 6 As shown, the filtration module also includes a flushing pipe 430, which is connected to a water source and is located above the transition section of the filter belt.

[0034] After the mesh belt enters the transition section (i.e., the area after the filter cake is discharged and before the mesh belt returns to the filter cavity bearing section), as it continues to travel and covers the area of ​​the flushing pipe, clean water is transported to the flushing pipe through the water source, and forms a water flow through several pre-set spray holes (or nozzles) at the bottom of the pipe. When the flushing water flow acts on the surface of the filter mesh belt transition section, on the one hand, it washes away the fine filter cake remaining on the surface of the mesh belt through the filter mesh holes, causing it to detach from the mesh belt; on the other hand, the water flow penetrates the filter mesh holes, impacting and carrying out the filter cake embedded in the mesh holes.

[0035] For example, the filter module also includes a baffle plate 450 that encloses the flushing pipe and has an open structure on the side of the baffle plate near the filter belt.

[0036] The baffle plate can confine the water flow within the local space enclosed by the baffle plate and the filter screen, reducing water splashing to the surrounding area. In addition, after the baffle plate wraps around the flushing pipe, it can guide the water flow to flow directionally towards the surface of the filter screen along the open opening, reducing the water flow to spread to both sides, and allowing the water flow impact force to be concentrated on the area of ​​the filter screen to be cleaned.

[0037] For example, a waste liquid discharge tank 440 is provided below the transition section of the filter belt.

[0038] A waste liquid discharge tank is installed below the transition section of the filter belt to collect the rinsing waste liquid. The waste liquid is then directed to the sewage pipe or collection container through the tank to prevent the waste liquid from overflowing.

[0039] For example, the filtration device further includes a collection module 200, which includes: Waste liquid collection tank 210, which is located below the outlet of the waste liquid discharge tank; Essential oil collection tank 220, which is located on one side of waste liquid collection tank; The filtration device also includes an oil drain pipe 700, one end of which is connected to the lower sealing cavity, and the other end is located in the essential oil collection tank.

[0040] The waste liquid is collected by the waste liquid collection tank to receive the rinsing waste liquid from the waste liquid discharge tank, so as to achieve independent collection of waste liquid. After filtration, the essential oil is introduced into the essential oil collection tank from the lower sealed cavity through the oil discharge pipe, so as to achieve collection of essential oil.

[0041] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A filtration device, characterized in that, include: A filtration module, which includes a belt filter; The upper sealing cavity is located above the filter belt carrying section of the belt filter. The lifting mechanism drives the upper sealing cavity to move vertically up and down. The injection pipe is connected to the upper sealing cavity; The lower sealing cavity is located below the filter belt carrying section, corresponding to the upper sealing cavity; The lifting mechanism drives the upper sealing cavity downward, squeezing the filter belt to abut against the lower sealing cavity to form a filter cavity.

2. The filtration device according to claim 1, characterized in that, Rubber rings are provided on the contact surfaces of the upper and lower sealing cavities and the filter belt.

3. The filtration device according to claim 1, characterized in that, The filtration module also includes a discharge port, which is located at the discharge end of the belt filter.

4. The filtration device according to claim 1, characterized in that, The filtration module also includes a flushing pipe connected to a water source, which is located above the transition section of the filter belt.

5. A filtration device according to claim 1, characterized in that, The filtration module also includes a baffle plate that encloses the flushing pipe, and the baffle plate has an open structure on the side near the filter belt.

6. A filtration device according to claim 5, characterized in that, A waste liquid discharge tank is provided below the transition section of the filter belt.

7. A filtration device according to claim 6, characterized in that, The filtration device further includes a collection module, which comprises: Waste liquid collection tank, wherein the waste liquid collection tank is located below the outlet of the waste liquid discharge tank; An essential oil collection tank is located on one side of a waste liquid collection tank. The filtration device also includes an oil drain pipe, one end of which is connected to the lower sealing cavity, and the other end is located in the essential oil collection tank.

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