A digestion and acid removal integrated device for heavy metal detection

Abstract

This utility model relates to the field of heavy metal detection, and more particularly to an integrated digestion and acid removal device for heavy metal detection. This device can be fully covered from the top by a cover and a suction motor, and the heating wire is detachable to accommodate test tubes of different heights, effectively solving the problems mentioned in the background art. It includes a base, which is a flat cuboid shape. An adjustable-height test tube fixing assembly with an adjustable heating area is fixed along the edge of the upper surface. Vertical support rods are located at the four corners of the upper surface of the base, and a transparent suction assembly is fixed to the upper surface of the support rods. It is simple to operate, convenient to use, and suitable for various test tubes.

Description

Technical Field

[0001] This utility model relates to the field of heavy metal detection, specifically to an integrated digestion and acid removal device for heavy metal detection. Background Technology

[0002] With the advancement of science and technology and the development of society, my country's chemical testing technology has developed rapidly. In the analytical testing industry, in order to effectively detect the content of heavy metals in solid samples such as soil, minerals, and food, laboratory personnel often need to pre-treat the samples with acid to digest and remove the acid, so that the heavy metals in the solid samples can be transferred to the solution for subsequent analysis and determination using large-scale precision instruments such as atomic fluorescence spectrometers, atomic absorption spectrometers, and inductively coupled plasma mass spectrometers.

[0003] Chinese utility model patent application number CN202123356501.8 discloses an integrated control device for digestion and acid removal for heavy metal detection, including a base, a fixed plate on the top of the base, multiple through holes in the interior of the fixed plate, the bottom ends of the fixed plate being fixedly connected to the base by support plates, adjustment components installed on both sides of the top of the fixed plate, sliding blocks slidably connected inside the adjustment components, a gas guide pipe connected to one side of the sliding block, a support plate at the bottom of each through hole, a spiral heating wire spirally arranged on the top of the support plate, and a lead screw rotatably connected to the bottom of the support plate.

[0004] The aforementioned utility model has the advantages of being able to adjust the fixation of test tubes of different sizes, providing uniform heating, facilitating the collection of generated gas, and preventing contamination. However, during use, its defects were found: 1. It uses multiple sliding blocks and gas guide tubes to draw gas, with motors installed in the sliding blocks, resulting in a relatively large number of motors and gas guide tubes, making the structure relatively cumbersome. Furthermore, the sliding blocks are small in size, making it easy for gas generated above the test tube to overflow from the bottom side of the sliding blocks; 2. The heating wire is a single, integral structure that cannot be disassembled, and the surrounding area cannot be adjusted according to the height of the test tube, making it difficult to match with test tubes of different heights and hindering the effective utilization of thermal efficiency. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model provides an integrated digestion and acid removal device for heavy metal detection. This device can be fully covered from the top by a cover and a suction motor, and the heating wire has a detachable structure to accommodate test tubes of different heights, effectively solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an integrated digestion and acid removal device for heavy metal detection, comprising a base, wherein the base is in the shape of a flat cuboid, and a test tube fixing assembly with adjustable height and adjustable heating area is fixedly provided on the edge of the upper surface; The base has vertical support rods at the four corners of its upper surface, and a transparent exhaust assembly is fixedly mounted on the upper surface of the support rods.

[0007] As a preferred technical solution, the test tube fixing assembly includes a column, the bottom of the column is fixedly connected to the base, a bushing is slidably provided on the column, a fastening bolt is screwed inward on one side of the bushing, a connecting block is fixedly provided on one side of the bushing, and the outer side of the connecting block is fixedly connected to the outer side of the collar. A rubber bolt is screwed inward on one side of the collar; The outer side of the collar is detachably suspended downwards by a heating component with an adjustable heating area.

[0008] As a preferred technical solution, the heating assembly includes vertically connectable heating units. The heating unit is a vertically spiral heating body with a heating wire inside. The upper and lower ends of the heating body are provided with a first connector and a second connector that cooperate with each other. The first connector and the second connector are respectively cylindrical. The first connector is provided with a plug that connects to the heating wire, and the second connector is provided with a socket that connects to the heating wire. A metal piece that connects to the heating wire is provided in the socket. The bottom of the lowest heating unit is fixed with a heating plate, which is connected to the socket of the second connector via a wire; The uppermost heating unit has hanging plates on the front and rear sides of its upper end. The lower end of the hanging plates is fixedly connected to the heating body. The upper end of the hanging plates has a side opening notch. The front and rear sides of the collar are fixed with hanging ears that cooperate with the notch of the hanging plates.

[0009] As a preferred technical solution, the exhaust assembly includes a cone-shaped transparent cover with the pointed end facing upwards. A suction motor is fixedly installed on the top of the cover, and a suction port communicating with the inside of the cover is provided at the bottom of the suction motor. An air outlet is provided on the top of the suction motor, and the air outlet is connected to the smoke exhaust pipe through a pipeline.

[0010] As a preferred technical solution, the notch includes a rectangular opening with a side opening, and the inner end of the rectangular opening is connected to a circular through hole.

[0011] As a preferred technical solution, the lug is a horizontal cylindrical protrusion with a diameter smaller than the width of the rectangular opening.

[0012] Compared with the prior art, this utility model provides an integrated digestion and acid removal device for heavy metal detection, which has the following beneficial effects: 1. This utility model includes a test tube fixing assembly comprising a column, the bottom of which is fixedly connected to a base. A bushing is slidably mounted on the column, and a fastening bolt is screwed inward on one side of the bushing. A connecting block is fixedly mounted on one side of the bushing, and the outer side of the connecting block is fixedly connected to the outer side of a collar. A rubber bolt is screwed inward on one side of the collar. A heating assembly with an adjustable heating area is detachably suspended downward on the outer side of the collar. In use, the test tube can be vertically inserted into the collar, and the up and down position of the left bushing can be adjusted according to the height of the test tube to match its height. The inward screwing of the rubber bolt can position test tubes of different diameters to prevent shaking. The heating assembly can be connected to a connecting line through a plug at the top to heat the test tube. The heating assembly can be spliced ​​to different heights according to the height of the test tube, thereby facilitating better heating of the test tube and improving heating efficiency.

[0013] 2. This utility model has a heating plate fixedly installed at the bottom of the heating unit at the bottom. The heating plate is connected to the socket of the second connector through a circuit. When in use, the heating plate at the bottom can heat the bottom of the test tube, which helps to improve the heating efficiency of the test tube.

[0014] 3. This utility model has hanging plates on the front and rear sides of the uppermost heating unit. The lower end of the hanging plates is fixedly connected to the heating body. The upper end of the hanging plates has a side opening notch. The front and rear sides of the collar are respectively fixed with hanging ears that cooperate with the notch of the hanging plates. In use, the heating component can be easily disassembled and installed from the collar through the cooperation of the hanging plates and hanging ears, which improves the convenience of use.

[0015] 4. This utility model includes a cone-shaped transparent cover with the pointed end facing upwards. A suction motor is fixedly installed at the top of the cover, and a suction port communicating with the inside of the cover is located at the bottom of the suction motor. An air outlet is located at the top of the suction motor and is connected to a smoke exhaust pipe through a pipeline. In use, the cone-shaped transparent cover can completely cover the test tubes on the bottom plate, and only one suction motor is needed to extract and exhaust the smoke below. Compared with multiple motors, this simplifies the structure, and the transparent cover makes it convenient for staff to observe the changes in the test tubes. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application: Figure 1 This is a three-dimensional structural diagram of the first embodiment of the present utility model; Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure after the cover is removed; Figure 3 This is an enlarged structural diagram of a test tube fixation assembly; Figure 4 This is an enlarged structural diagram of a heating unit (topmost side).

[0017] The diagram shows: 1. Base; 2. Column; 3. Test tube fixing assembly; 31. Bushing; 311. Fastening bolt; 32. Connecting block; 33. Collar; 331. Rubber bolt; 34. Heating unit; 341. Heating element; 342. First connector; 343. Plug; 344. Second connector; 3441. Socket; 345. Heating plate; 346. Wiring; 35. Hanging plate; 351. Rectangular opening; 352. Circular through hole; 36. Hanging lug; 4. Support rod; 5. Cover; 6. Suction motor; 61. Air outlet. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0019] like Figures 1 to 4 As shown, an integrated digestion and acid removal device for heavy metal detection includes a base 1, which is a flat cuboid. An adjustable-height test tube fixing assembly 3 is fixed to the edge of the upper surface. Vertical support rods 4 are respectively provided at the four corners of the upper surface of the base 1, and a transparent exhaust assembly is fixed to the upper surface of the support rods 4.

[0020] The test tube fixing assembly 3 includes a column 2, the bottom of which is fixedly connected to the base 1. A bushing 31 is slidably mounted on the column 2. A fastening bolt 311 is screwed inward on one side of the bushing 31. A connecting block 32 is fixedly mounted on one side of the bushing 31, and the outer side of the connecting block 32 is fixedly connected to the outer side of a collar 33. A rubber bolt 331 is screwed inward on one side of the collar 33. A heating component with an adjustable heating area is detachably suspended downward on the outer side of the collar 33.

[0021] The heating assembly includes vertically connectable heating units 34. Each heating unit 34 is a vertically spiral heating body 341 (a heat-conducting metal body). A heating wire (not shown) is installed within the heating body 341. The upper and lower ends of the heating body 341 have a first connector 342 and a second connector 344 that cooperate with each other (facilitating the assembly of the heating units). The first connector 342 and the second connector 344 are both cylindrical. The first connector 342 has a plug 343 for connecting to the heating wire, and the second connector 344 has a socket 3441 for connecting to the heating wire. A metal piece (not shown) for connecting to the heating wire is installed in the socket. A heating plate 345 (a heat-conducting metal plate with a heating wire inside) is fixedly installed at the bottom of the lowest heating unit 34. The heating wire inside the heating plate 345 is connected to the socket 3441 of the second connector 344 via a circuit 346. The uppermost heating unit 34 has hanging plates 35 on the front and rear sides of its upper end. The lower end of the hanging plate 35 is fixedly connected to the heating body 34. The upper end of the hanging plate 35 has a side opening notch. The front and rear sides of the collar 33 are respectively fixed with hanging ears 36 that cooperate with the notch of the hanging plate 35.

[0022] The exhaust assembly includes a cone-shaped transparent cover 5 with the pointed end of the cover 5 facing upwards. A suction motor 5 is fixedly installed on the top of the cover 5. The bottom of the suction motor 5 has a suction port (not visible) that communicates with the inside of the cover 5. The top of the suction motor 5 has an air outlet 61. The air outlet 61 is connected to the smoke exhaust pipe (a pipe reserved in the room or laboratory) through a pipe (not visible).

[0023] The notch includes a rectangular opening 351 with a side opening, and the inner end of the rectangular opening 351 is connected to a circular through hole 352.

[0024] The lug 36 is a horizontal cylindrical protrusion with a diameter smaller than the width of the rectangular opening 351. This allows the hanging plate 35 to slide in from one side through the rectangular opening 351, so that the lug 336 can be attached to the circular through hole 352.

[0025] In use, the test tube (not shown) is vertically inserted into the collar 33. The left bushing 31 can be adjusted up and down according to the height of the test tube to fit the height. Tightening the rubber bolt 331 inward can position test tubes of different diameters to prevent shaking. The heating component can be connected to the connecting line (external power cord, existing technology) through the plug 343 at the top to heat the test tube. The heating component can be spliced ​​to different heights according to the height of the test tube, thereby improving the heating effect and efficiency. The heating plate 345 at the bottom can heat the bottom of the test tube, which helps to improve the heating efficiency. The heating component can be easily installed and removed from the collar 33 through the cooperation of the hanging plate 35 and the hanging ear 36, improving the convenience of use. The top conical transparent cover 5 can fully cover the test tube below, and only one suction motor 6 is needed to extract and discharge the smoke below, which simplifies the structure compared to multiple motors. The transparent cover 5 allows the staff to observe the changes in the test tube.

[0026] The components used in this utility model are all general standard parts or components known to those skilled in the art, and their structures and principles are well known to those skilled in the art.

[0027] It should be noted that, in this document, the terms "first," "second," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are used only to distinguish one entity or operation from another entity or operation, 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.

[0028] The structures, proportions, sizes, etc. shown in the accompanying drawings of this specification are only used to complement the content disclosed in the specification, so that those skilled in the art can understand and read them, and are not intended to limit the conditions under which this utility model can be implemented. Any modification of the structure, change of the proportions, or adjustment of the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An integrated digestion and acid removal device for heavy metal detection, characterized in that: Includes a base, which is a flat cuboid shape, and a test tube fixing assembly with adjustable height and adjustable heating area is fixedly provided on the upper surface edge; The base has vertical support rods at the four corners of its upper surface, and a transparent exhaust assembly is fixedly mounted on the upper surface of the support rods.

2. The digestion and acid removal integrated device for heavy metal detection according to claim 1, characterized in that: The test tube fixing assembly includes a column, the bottom of the column is fixedly connected to the base, a bushing is slidably provided on the column, a fastening bolt is screwed inward on one side of the bushing, a connecting block is fixedly provided on one side of the bushing, and the outer side of the connecting block is fixedly connected to the outer side of the collar. A rubber bolt is screwed inward on one side of the collar; The outer side of the collar is detachably suspended downwards by a heating component with an adjustable heating area.

3. The device according to claim 2, characterized in that: The heating assembly includes vertically connectable heating units, each of which is a vertically spiral heating body. The heating body contains a heating wire, and the upper and lower ends of the heating body are provided with a first connector and a second connector that cooperate with each other. The first connector and the second connector are respectively cylindrical. The first connector is provided with a plug that connects to the heating wire, and the second connector is provided with a socket that connects to the heating wire. The socket contains a metal piece that connects to the heating wire. The bottom of the lowest heating unit is fixed with a heating plate, which is connected to the socket of the second connector via a wire; The uppermost heating unit has hanging plates on the front and rear sides of its upper end. The lower end of the hanging plates is fixedly connected to the heating body. The upper end of the hanging plates has a side opening notch. The front and rear sides of the collar are fixed with hanging ears that cooperate with the notch of the hanging plates.

4. The device according to claim 1, characterized in that: The exhaust assembly includes a cone-shaped transparent cover with the pointed end facing upwards. A suction motor is fixedly installed on the top of the cover. The bottom of the suction motor has a suction port that communicates with the inside of the cover. The top of the suction motor has an air outlet, which is connected to the smoke exhaust pipe through a pipeline.

5. The device for digestion and acid removal integration for heavy metal detection according to claim 3, characterized in that: The notch includes a rectangular opening with a side opening, and the inner end of the rectangular opening is connected to a circular through hole.

6. The integrated digestion and acid removal device for heavy metal detection according to claim 3, characterized in that: The lug is a horizontal cylindrical protrusion with a diameter smaller than the width of the rectangular opening.

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