Digester with filtering function

Abstract

The utility model discloses a digester with a filtering function, and relates to the technical field of digester. The digester with the filtering function comprises a working table; the digestion assembly is mounted on one side of the upper part of the workbench and is used for performing digestion treatment on the sample before chemical analysis; the plurality of placing grooves are symmetrically formed in the digestion assembly; the plurality of sample tubes are arranged in the placing groove; the plurality of support frames are positioned right above the sample tube; the filter cartridge is placed on the support frame, the upper part of the filter cartridge is open, a filter membrane is fixed on the inner wall of the filter cartridge, and the filter cartridge is used for filtering a sample before digestion treatment; the moving assembly is mounted above the workbench and used for moving the supporting frame to be close to or away from the digestion assembly; by arranging the lifting assembly, the device can be suitable for sample tubes with different heights, the closer the lower end of the filter cartridge is to the sample tube, the more the splashing loss of a sample during filtration can be prevented, and the device is high in applicability and has practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of digesters, in particular to a digester with filtration. Background Art

[0002] The digester with filtration combines two major functions of digestion and filtration, which can effectively remove impurities in samples and improve the accuracy and efficiency of subsequent analysis. Such equipment is widely used in fields such as food, medicine, agriculture, environmental protection, chemical engineering, and metallurgical industry, especially in the digestion treatment before chemical analysis of samples such as soil, seeds, vegetation, minerals, etc.

[0003] Referring to an electric heating digester disclosed in a patent application with a publication number of CN206906128U, which includes a digester body and a cover made of metal material. The cover is connected to the digester body through a hinge, and at least one locking component is provided on the cover for fixedly locking the cover to the digester body. The cover of the electric heating digester is made of metal material and fixedly locked to the body of the electric heating digester, with high strength and good explosion-proof ability. It can effectively prevent liquid, glass, etc. from ejecting outside the cover when the digestion tube in the main body of the electric heating digester explodes, and has high use safety.

[0004] As shown in the above prior art, most of the existing digesters do not have the function of filtering samples before digestion. Before using such digesters, it is necessary to manually filter the samples, and then the digester can be used for digestion work. This makes it take a large amount of time for pre-preparation work before the samples are digested, greatly reducing the efficiency of chemical analysis.

[0005] Therefore, it is necessary to provide a digester with filtration to solve the above technical problems. Content of the Utility Model

[0006] (1) Technical Problems to be Solved

[0007] To solve the above technical problems, the utility model provides a digester with filtration.

[0008] (2) Technical Solutions

[0009] To achieve the above object, the utility model is realized through the following technical solutions: A digester with filtration, comprising:

[0010] A workbench;

[0011] A digestion component, installed on one side above the workbench, for performing digestion treatment on samples before chemical analysis;

[0012] Placement grooves, multiple of which are symmetrically arranged inside the digestion component;

[0013] There are multiple sample tubes, all of which are placed in the placement tank;

[0014] A plurality of support frames are provided and all are located directly above the sample tube;

[0015] The filter cartridge is placed on the support frame, the top of the filter cartridge is open and a filter membrane is fixed on the inner wall, and is used to filter the sample before digestion treatment;

[0016] A moving assembly, installed above the workbench, used to move the support frame closer to or farther away from the digestion assembly;

[0017] The lifting assembly is installed above the moving assembly and is used to enable the support frame to perform lifting movements.

[0018] Preferably, the moving component includes a moving groove opened above the workbench, the inner wall of the moving groove is slidably connected to a moving frame, the inner wall of the moving groove is fixed with a rack, one side of the rack is meshingly connected with a gear, a first motor is fixed under the moving frame, and the output end of the first motor is fixed to the gear.

[0019] Preferably, the lifting assembly includes a shell fixed above the movable frame, the inner wall of the shell is slidably connected with a lifting rod, the side of the lifting rod close to the digestion assembly is fixed to the support frame, and the side of the shell facing away from the digestion assembly is equipped with a driving assembly for driving the lifting rod to rise and fall.

[0020] Preferably, the driving assembly includes a slide groove opened on the side of the casing away from the digestion assembly, a lifting block is fixed on the side of the lifting rod close to the slide groove, the lifting block is slidably connected to the inner wall of the slide groove, a cover shell is fixed on the side of the casing close to the slide groove, a second motor is fixed above the cover shell, a screw is rotatably connected to the inner wall of the cover shell, the upper end of the screw passes through the cover shell and is fixed to the output end of the second motor, and the lifting block is threadedly connected to the outer wall of the screw.

[0021] Preferably, the filter cartridge and filter membrane are both disposable.

[0022] Preferably, the second motor is a reduction motor.

[0023] (III) Beneficial effects

[0024] The utility model provides a digester with filtering. Compared with the prior art, it has the following beneficial effects:

[0025] 1. By setting up a moving component, the present application enables the pre-digestion treatment of samples to freely choose whether filtration is required. For samples that need to be filtered before digestion, filtration can be directly carried out above the digestion component. After filtration, the samples directly enter the sample tube. By driving the support frame away from the digestion component, the digestion component can be used to simultaneously carry out the digestion work of multiple samples, saving operation time and improving work efficiency.

[0026] 2. By setting up a lifting component, the device can be applicable to sample tubes of different heights. The closer the lower end of the filter cartridge is to the sample tube, the more effectively it can prevent the splashing loss of samples during filtration. The device not only has strong applicability but also has practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0028] Figure 2 is a schematic diagram of the relationship between the support frame and the lifting rod of the present utility model;

[0029] Figure 3 is a schematic diagram of the relationship between the screw rod and the lifting block of the present utility model.

[0030] Reference numerals in the figures: 1, workbench; 2, digestion component; 3, placement groove; 4, sample tube; 5, support frame; 6, filter cartridge; 7, filter membrane; 8, moving groove; 9, moving frame; 10, rack; 11, gear; 12, first motor; 13, housing; 14, lifting rod; 15, sliding groove; 16, lifting block; 17, cover housing; 18, second motor; 19, screw rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0032] The present utility model provides two technical solutions:

[0033] Figures 1 to 2 The first embodiment is shown: A digester with filtration, comprising:

[0034] Workbench 1;

[0035] Digestion component 2, installed on one side above the workbench 1, for carrying out digestion treatment on samples before chemical analysis;

[0036] A plurality of placement tanks 3 are symmetrically arranged inside the digestion component 2;

[0037] There are multiple sample tubes 4, all of which are placed in the placement tank 3;

[0038] Support frames 5, which are provided in plurality and are all located directly above the sample tube 4;

[0039] The filter cartridge 6 is placed on the support frame 5. The top of the filter cartridge 6 is open and a filter membrane 7 is fixed on the inner wall, which is used to filter the sample before digestion treatment;

[0040] A moving component, installed above the workbench 1, used to move the support frame 5 to move it closer to or away from the digestion component 2;

[0041] The lifting assembly is installed above the moving assembly and is used to make the support frame 5 perform lifting movements.

[0042] The moving component includes a moving groove 8 opened above the workbench 1, a moving frame 9 is slidably connected to the inner wall of the moving groove 8, a rack 10 is fixed to the inner wall of the moving groove 8, a gear 11 is meshed and connected to one side of the rack 10, a first motor 12 is fixed under the moving frame 9, and the output end of the first motor 12 is fixed to the gear 11.

[0043] This application sets up a mobile component so that the sample can freely choose whether to be filtered before digestion. Samples that need to be filtered before digestion can be filtered directly above the digestion component 2. The filtered samples directly enter the sample tube 4, and the support frame 5 is driven away from the digestion component 2. The digestion component 2 can then be used to digest multiple samples at the same time, saving operation time and improving work efficiency.

[0044] Figure 3 A second embodiment is shown, which mainly differs from the first embodiment in that the lifting assembly includes a casing 13 fixed above the movable frame 9, a lifting rod 14 is slidably connected to the inner wall of the casing 13, the lifting rod 14 is fixed to the support frame 5 on the side close to the digestion component 2, and a driving assembly for driving the lifting rod 14 to rise and fall is installed on the side of the casing 13 away from the digestion component 2.

[0045] The driving assembly includes a slide groove 15 opened on the side of the casing 13 away from the digestion assembly 2, a lifting block 16 is fixed to the side of the lifting rod 14 close to the slide groove 15, and the lifting block 16 is slidably connected to the inner wall of the slide groove 15, a cover shell 17 is fixed to the side of the casing 13 close to the slide groove 15, a second motor 18 is fixed above the cover shell 17, and the second motor 18 is a reduction motor. A screw rod 19 is rotatably connected to the inner wall of the cover shell 17, and the upper end of the screw rod 19 passes through the cover shell 17 and is fixed to the output end of the second motor 18, and the lifting block 16 is threadedly connected to the outer wall of the screw 19.

[0046] Both the filter cartridge 6 and the filter membrane 7 are disposable items.

[0047] By setting up the lifting component, this device can be applied to sample tubes 4 of different heights. The closer the lower end of the filter cartridge 6 is to the sample tube 4, the more effectively it can prevent the splashing loss of the sample during filtration. This device not only has strong applicability but also practicality.

[0048] Working principle:

[0049] The digestion component 2 is an existing technology and will not be elaborated here.

[0050] Load the sample into the sample tube 4 and then use the digestion component 2 to digest the sample. For some samples that need to be filtered before digestion, place the filter cartridge 6 on the support frame 5 at this time. Drive the first motor 12 to rotate the gear 11, and the gear 11 moves on the rack 10, thereby driving the moving frame 9 to move towards the digestion component 2 in the moving groove 8, moving the support frame 5 above the sample tube 4. The lower end of the filter cartridge 6 is directly opposite the sample tube 4. Then pour the sample into the filter cartridge 6, and the sample passes through the filter membrane 7 for filtration and then enters the sample tube 4. After the sample filtration is completed, remove the disposable filter cartridge 6, drive the first motor 12 to reverse the gear 11 to drive the filter cartridge 6 away from the digestion component 2, and then the digestion component 2 can be used to digest the sample.

[0051] Different-height sample tubes 4 can be selected according to the amount of the sample. The height of the support frame 5 can be adjusted according to the height of the sample tube 4, thereby adjusting the height of the filter cartridge 6 to ensure that the filter cartridge 6 is always above the sample tube 4. Drive the second motor 18 to drive the screw 19 to rotate, and the lifting block 16 can move on the inner wall of the sliding groove 15, thereby driving the lifting rod 14 to lift and lower on the inner wall of the sleeve 13, and then driving the support frame 5 to lift and lower.

[0052] Meanwhile, the content not described in detail in this specification belongs to the well-known prior art in the art.

[0053] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0054] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A digester with filtering, characterized in that: include: Workbench (1); A digestion component (2), installed on one side above the workbench (1), is used to perform digestion treatment on the sample before chemical analysis; A plurality of placement tanks (3) are symmetrically arranged inside the digestion component (2); A plurality of sample tubes (4) are provided and all are placed in the placement groove (3); A plurality of support frames (5) are provided and all are located directly above the sample tube (4); A filter cartridge (6) is placed on the support frame (5), wherein the top of the filter cartridge (6) is open and a filter membrane (7) is fixed on the inner wall, and is used to filter the sample before digestion treatment; A moving component, installed above the workbench (1), used to move the support frame (5) to move it closer to or farther away from the digestion component (2); The lifting assembly is installed above the moving assembly and is used to enable the support frame (5) to perform lifting movements.

2. A digester with filtration according to claim 1, characterized in that: The moving assembly comprises a moving groove (8) opened above the workbench (1); a moving frame (9) is slidably connected to the inner wall of the moving groove (8); a rack (10) is fixed to the inner wall of the moving groove (8); one side of the rack (10) is meshingly connected to a gear (11); a first motor (12) is fixed below the moving frame (9); and an output end of the first motor (12) is fixed to the gear (11).

3. A digester with filtration according to claim 2, characterized in that: The lifting assembly comprises a casing (13) fixed above the moving frame (9); a lifting rod (14) is slidably connected to the inner wall of the casing (13); a side of the lifting rod (14) close to the digestion assembly (2) is fixed to the support frame (5); and a driving assembly for driving the lifting rod (14) to move up and down is installed on a side of the casing (13) away from the digestion assembly (2).

4. A digester with filtration according to claim 3, characterized in that: The driving assembly comprises a slide groove (15) provided on a side of the casing (13) away from the digestion assembly (2); a lifting block (16) is fixed to a side of the lifting rod (14) close to the slide groove (15); the lifting block (16) is slidably connected to the inner wall of the slide groove (15); a cover shell (17) is fixed to a side of the casing (13) close to the slide groove (15); a second motor (18) is fixed above the cover shell (17); a screw rod (19) is rotatably connected to the inner wall of the cover shell (17); the upper end of the screw rod (19) passes through the cover shell (17) and is fixed to the output end of the second motor (18); the lifting block (16) is threadedly connected to the outer wall of the screw rod (19).

5. A digester with filtering according to claim 1, characterized in that: The filter cartridge (6) and filter membrane (7) are both disposable items.

6. A digester with filtering according to claim 4, characterized in that: The second motor (18) is a reduction motor.

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