Laboratory platinum vessel pickling device
By designing a laboratory platinum vessel pickling device and using an electromagnetic stirrer and a ring heater to improve the acid flow and heating efficiency, the safety hazards and low efficiency problems in the traditional pickling process were solved, and an efficient and safe pickling effect was achieved.
Patent Information
- Application Number
- CN202422840259.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-11-21
AI Technical Summary
The traditional pickling process for platinum utensils has safety hazards and low efficiency, especially when using dilute hydrochloric acid, which is prone to splashing and inconvenient to operate.
A laboratory platinum vessel pickling device was designed, which includes a filter cartridge, a wash bottle, a stirrer, an electromagnetic stirrer, and a ring heater. The electromagnetic stirrer drives the stirrer to move inside the wash bottle. Combined with the heating on all sides below the ring heater, the acid flow rate and heating efficiency are improved, achieving an efficient and safe pickling process.
It achieves efficient, safe and low-interference pickling effects, increases the flow rate and heating efficiency of the acid in the container, and improves the pickling efficiency.
Smart Images
Figure CN223357765U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of laboratory equipment, in particular to a laboratory platinum vessel pickling device. Background Art
[0002] Due to platinum's chemical inertness and resistance to acid and alkali corrosion, platinum utensils are primarily used in chemical testing laboratories for high-temperature heat treatment and acid-base chemical treatment of samples to prepare solutions for later chemical analysis operations. However, due to the diversity and complexity of the chemical composition of samples tested in chemical testing laboratories, compounds containing sample components will form on the surface of platinum utensils after long-term use, causing contamination and interference in subsequent testing. Therefore, platinum utensils need to be treated regularly to eliminate interference or contamination between different samples.
[0003] The conventional disposal method for platinum utensils that have been used for a long time is acid washing, that is, adding dilute hydrochloric acid to a beaker, placing the platinum utensils in it, and then heating and soaking it. The dilute hydrochloric acid is used to remove interfering substances on the surface of the platinum utensils. However, when taking the platinum utensils out and rinsing them during the process, tweezers and other tools are required. Dilute hydrochloric acid is prone to splashing, which poses certain safety hazards and is inefficient.
[0004] In view of the above-mentioned defects, the inventors of the present invention finally obtained the present invention after a long period of research and practice. Utility Model Content
[0005] In order to solve the above-mentioned technical defects, the technical solution adopted by the present invention is to provide a laboratory platinum vessel pickling device including a filter cartridge, a wash bottle, a stirrer, an electromagnetic stirrer and a ring heater, wherein the filter cartridge and the stirrer are both arranged in the wash bottle, the stirrer is arranged below the filter cartridge, the electromagnetic stirrer is arranged at the bottom of the wash bottle, and the ring heater is arranged at the lower part of the wash bottle. The electromagnetic stirrer drives the stirrer to move in the wash bottle to achieve a stirring operation, the wash bottle is provided with acid solution for pickling, the platinum vessel is arranged in the filter cartridge, and the filter cartridge is provided with a sieve hole connecting the inside and outside of the filter cartridge.
[0006] Preferably, the filter cartridge and the wash bottle are both configured as straight cup structures with an open upper end and a closed lower end, the filter cartridge is placed in the wash bottle through the upper open end of the wash bottle, and the outer diameter of the cross section of the filter cartridge is configured to be 80% of the outer diameter of the cross section of the wash bottle.
[0007] Preferably, a flow section is provided at the lower portion of the filter cartridge, the flow section extending upward from the bottom end of the filter cartridge, the flow section and the bottom of the filter cartridge are both provided with the sieve holes, and the extension length of the flow section is set to 1 / 3 of the overall height of the filter cartridge.
[0008] Preferably, the sieve holes are through holes with a diameter of 5 mm.
[0009] Preferably, the washing bottle is made of quartz material, and the filter cartridge is made of polytetrafluoroethylene material.
[0010] Preferably, the annular heater is configured as a resistance wire wrapped with ceramic fiber cotton, the resistance wire is spirally wound on the outside of the washing bottle, and the resistance wire is arranged at the lower part of the washing bottle to correspond to the bottom of the filter cartridge.
[0011] Preferably, a handle is provided on the upper portion of the filter cartridge, and the handle and the upper open end of the wash bottle form a snap-fit positioning. When the filter cartridge is placed in the wash bottle, a stirring gap is formed between the filter cartridge and the wash bottle, and the stirring rod stirs in the stirring gap.
[0012] Preferably, the height of the filter cartridge is consistent with the height of the washing bottle.
[0013] Preferably, both the annular heater and the electromagnetic stirrer are provided with current regulating circuits for adjusting the heating temperature of the annular heater and the stirring speed of the electromagnetic stirrer.
[0014] Preferably, the handle is configured to be annular, the inner surface of the handle is fixedly disposed on the outer surface of the filter cartridge, the outer diameter of the handle is larger than the outer diameter of the washing bottle, the bottom surface of the handle is provided with a flexible contact layer, and the upper end of the washing bottle is provided in contact with the handle through the flexible contact layer.
[0015] Preferably, a limiting ring is fixedly provided at the bottom of the handle, the limiting ring of the circular ring structure is coaxially arranged with the handle, the outer diameter of the limiting ring is smaller than the inner diameter of the washing bottle, and a ring groove is provided in an annular shape on the outer surface of the limiting ring, and a rubber ring is provided in the ring groove.
[0016] Compared with the existing technology, the beneficial effects of the present invention are: on the basis of meeting the requirements of high efficiency, safety, professionalism and low interference, the present invention adds electromagnetic stirring function to increase the flow speed of the acid liquid in the container; the traditional bottom heating is changed to annular heating around the bottom of the hot container, thereby improving the heating efficiency, thereby improving the chemical reaction efficiency, and ultimately improving the pickling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the structure of the laboratory platinum vessel pickling device;
[0018] Figure 2 is a top view of the structure of the filter cartridge;
[0019] Figure 3 is a schematic diagram of the current regulation circuit;
[0020] Figure 4 It is a cross-sectional view of the connection structure between the filter cartridge and the washing bottle in Example 2.
[0021] The numbers in the figure represent:
[0022] 1-filter cartridge; 2-wash bottle; 3-stirring bar; 4-electromagnetic stirrer; 5-ring heater; 6-sieve hole; 7-handle; 8-flexible contact layer; 9-limiting ring; 10-rubber ring. DETAILED DESCRIPTION
[0023] The above and other technical features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.
[0024] Example 1
[0025] like Figure 1 and Figure 2 As shown, Figure 1 This is a schematic diagram of the structure of the laboratory platinum vessel pickling device; Figure 2 It is a top view of the structure of the filter cartridge.
[0026] The laboratory platinum vessel pickling device of the present invention includes a filter cartridge 1, a wash bottle 2, a stirrer 3, an electromagnetic stirrer 4 and a ring heater 5. The filter cartridge 1 and the stirrer 3 are both arranged in the wash bottle 2, the stirrer 3 is arranged below the filter cartridge 1, the electromagnetic stirrer 4 is arranged at the bottom of the wash bottle 2, and the ring heater 5 is arranged at the lower part of the wash bottle 2. The electromagnetic stirrer 4 drives the stirrer 3 to move in the wash bottle 2 to achieve a stirring operation. Acid solution for pickling is provided in the wash bottle 2. The platinum vessel is provided in the filter cartridge 1. The filter cartridge 1 is provided with a sieve hole 6 to achieve mutual communication between the inside and the outside of the filter cartridge 1, thereby ensuring that the acid solution contacts the platinum vessel arranged in the filter cartridge 1 for pickling.
[0027] Specifically, the filter cartridge 1 and the wash bottle 2 are both configured as a straight cup structure with an open upper end and a closed lower end. The filter cartridge 1 is placed in the wash bottle 2 through the open upper end of the wash bottle 2, thereby immersing the platinum vessel in the filter cartridge 1 in the acid solution in the wash bottle 2.
[0028] Preferably, the outer diameter of the cross section of the filter cartridge 1 is set to 80% of the outer diameter of the cross section of the wash bottle 2 to ensure that there is sufficient flow space between the cylinder wall of the filter cartridge 1 and the bottle wall of the wash bottle 2. If the flow space is too small, it is not conducive to the acid liquid being driven by the stirrer 3 to achieve stirring. If the flow space is too large, the space of the filter cartridge 1 will become smaller, which is not conducive to the placement of platinum utensils in the filter cartridge 1.
[0029] A flow section is provided at the lower portion of the filter cartridge 1, and the flow section extends upward from the bottom end of the filter cartridge 1. The flow section and the bottom of the filter cartridge 1 are both provided with the sieve holes 6, thereby facilitating the acid liquid outside the filter cartridge 1 to flow to the platinum vessel located at the bottom of the filter cartridge 1 for pickling.
[0030] Generally, the extension length of the flow section is set to 1 / 3 of the overall height of the filter cartridge 1. The sieve holes 6 are through holes with a diameter of 5 mm to achieve mutual communication of the acid liquid inside and outside the filter cartridge 1, ensuring that the acid liquid is stirred and circulated for pickling the platinum vessel.
[0031] The washing bottle 2 is made of quartz material, which meets the requirements of corrosion resistance and heat resistance and has good stability when heated. The filter cartridge 1 is made of polytetrafluoroethylene.
[0032] The annular heater 5 is configured as a resistance wire wrapped with ceramic fiber cotton. The resistance wire is spirally wound around the outside of the washing bottle 2, and the resistance wire is arranged at the lower part of the washing bottle 2 to correspond to the bottom of the filter cartridge 1, ensuring efficient and safe heating and pickling of platinum utensils.
[0033] Preferably, a handle 7 is provided on the upper portion of the filter cartridge 1. The handle 7 and the upper open end of the wash bottle 2 form a snap-fit position to ensure that when the filter cartridge 1 is placed in the wash bottle 2, a stirring gap is formed between the filter cartridge 1 and the wash bottle 2. The stirrer 3 stirs within the stirring gap, avoiding direct contact between the filter cartridge 1 and the stirrer 3, which would affect the stirring effect. The handle 7 is designed to be perpendicular to the filter cartridge 1 to prevent it from slipping.
[0034] Generally, the height of the filter cartridge 1 is consistent with the height of the wash bottle 2. The filter cartridge 1 is raised relative to the wash bottle 2 by the handle 7, and the upper open end of the filter cartridge 1 is located at a higher position, which effectively prevents the acid flowing in the filter cartridge 1 from splashing.
[0035] like Figure 3 As shown, Figure 3 is a schematic diagram of the current adjustment circuit; preferably, the annular heater 5 and the electromagnetic stirrer 4 are both provided with current adjustment circuits, which can adjust the heating temperature and stirring speed in a timely manner according to the number and specifications of the platinum vessels and the amount of acid.
[0036] During the operation, first pour the prepared dilute hydrochloric acid into the washing bottle 2 (with the stirring bar 3 placed in advance), then place the filter cartridge 1 into the washing bottle 2, place the platinum vessel to be pickled into the filter cartridge 1, turn on the annular heater 5 and the electromagnetic stirrer 4 to start the cleaning operation; after the pickling work is completed, hold the handle 7, take it out together with the platinum vessel, rinse it with pure water, drain it, and then use it again.
[0037] On the basis of meeting the requirements of high efficiency, safety, professionalism and low interference, the utility model adds electromagnetic stirring function to improve the flow speed of the acid liquid in the container; the traditional bottom heating is changed to annular heating around the bottom of the hot container, which improves the heating efficiency, thereby improving the chemical reaction efficiency and ultimately improving the pickling efficiency.
[0038] Example 2
[0039] like Figure 4 As shown, Figure 4 It is a cross-sectional view of the connection structure between the filter cartridge and the wash bottle in this embodiment; in this embodiment, the handle 7 is set to a circular ring shape, and the inner circular surface of the handle 7 is fixedly set on the outer circular surface of the filter cartridge 1. The outer circular diameter of the handle 7 is larger than the outer circular diameter of the wash bottle 2, so that the handle 7 and the wash bottle 2 can be snapped and positioned, and the gap between the upper end of the wash bottle 2 and the filter cartridge 1 can be covered to prevent acid from splashing out from here.
[0040] Preferably, a flexible contact layer 8 is provided on the bottom surface of the handle 7, and the upper end of the washing bottle 2 is in contact with the handle 7 through the flexible contact layer 8, so as to avoid the influence of stirring vibration on wear and impact between the washing bottle 2 and the handle 7.
[0041] A limiting ring 9 is also fixedly provided at the bottom of the handle 7. The limiting ring 9 of the circular ring structure is coaxially arranged with the handle 7. The outer diameter of the limiting ring 9 is slightly smaller than the inner diameter of the washing bottle 2, and a ring groove is provided in an annular shape on the outer surface of the limiting ring 9. A rubber ring 10 is provided in the ring groove. When the filter cartridge 1 is placed in the washing bottle 2, the limiting ring 9 is provided in the washing bottle 2, and the outer surface of the limiting ring 9 is in contact with the inner wall of the washing bottle 2 through the rubber ring 10, thereby stabilizing the relative position between the filter cartridge 1 and the washing bottle 2, avoiding the shaking of the filter cartridge 1 during stirring and colliding or scratching with the washing bottle 2, and improving the service life of the filter cartridge 1 and the washing bottle 2.
[0042] The flexible contact layer 8 and the rubber ring 10 are both made of acid-resistant rubber material.
[0043] The above description is merely a preferred embodiment of the present invention and is intended to be illustrative rather than restrictive of the present invention. Those skilled in the art will appreciate that many changes, modifications, and even equivalents may be made to the present invention within the spirit and scope of the claims, and all of these changes will fall within the scope of protection of the present invention.
Claims
1. A laboratory platinum vessel pickling device, characterized in that: The invention comprises a filter cartridge, a wash bottle, a stirrer, an electromagnetic stirrer and an annular heater, wherein the filter cartridge and the stirrer are both arranged in the wash bottle, the stirrer is arranged below the filter cartridge, the electromagnetic stirrer is arranged at the bottom of the wash bottle, the annular heater is arranged at the lower part of the wash bottle, the electromagnetic stirrer drives the stirrer to move in the wash bottle to achieve a stirring operation, the wash bottle is provided with acid solution for pickling, a platinum vessel is provided in the filter cartridge, and the filter cartridge is provided with a sieve hole connecting the inside and outside of the filter cartridge.
2. The laboratory platinum vessel pickling device according to claim 1, characterized in that: The filter cartridge and the wash bottle are both configured as straight cup structures with an open upper end and a closed lower end. The filter cartridge is placed in the wash bottle through the upper open end of the wash bottle. The outer diameter of the cross section of the filter cartridge is configured to be 80% of the outer diameter of the cross section of the wash bottle.
3. The laboratory platinum vessel pickling device according to claim 2, characterized in that: A flow section is provided at the lower portion of the filter cartridge, and the flow section extends upward from the bottom end of the filter cartridge. The flow section and the bottom of the filter cartridge are both provided with the sieve holes, and the extension length of the flow section is set to 1 / 3 of the overall height of the filter cartridge.
4. The laboratory platinum vessel pickling device according to claim 1, characterized in that: The washing bottle is made of quartz material, and the filter cartridge is made of polytetrafluoroethylene material.
5. The laboratory platinum vessel pickling device according to claim 3, characterized in that: The annular heater is configured as a resistance wire wrapped with ceramic fiber cotton. The resistance wire is spirally wound on the outside of the washing bottle, and the resistance wire is arranged at the lower part of the washing bottle to correspond to the bottom of the filter cartridge.
6. The laboratory platinum vessel pickling device according to claim 1, characterized in that: A handle is provided on the upper portion of the filter cartridge, and the handle and the upper open end of the wash bottle form a snap-fit positioning. When the filter cartridge is placed in the wash bottle, a stirring gap is formed between the filter cartridge and the wash bottle, and the stirrer stirs in the stirring gap.
7. The laboratory platinum vessel pickling device according to claim 6, characterized in that: The height dimension of the filter cartridge is consistent with the height dimension of the washing bottle.
8. The laboratory platinum vessel pickling device according to claim 1, characterized in that: The annular heater and the electromagnetic stirrer are both provided with current regulating circuits for regulating the heating temperature of the annular heater and the stirring speed of the electromagnetic stirrer.
9. The laboratory platinum vessel pickling device according to claim 6, characterized in that: The handle is configured as a circular ring, the inner surface of the handle is fixedly disposed on the outer surface of the filter cartridge, the outer diameter of the handle is larger than the outer diameter of the washing bottle, a flexible contact layer is disposed on the bottom surface of the handle, and the upper end of the washing bottle is in contact with the handle through the flexible contact layer.
10. The laboratory platinum vessel pickling device according to claim 9, characterized in that: A limiting ring is also fixedly provided at the bottom of the handle. The limiting ring of the circular ring structure is coaxially arranged with the handle. The outer diameter of the limiting ring is smaller than the inner diameter of the washing bottle, and a ring groove is provided on the outer surface of the limiting ring, and a rubber ring is provided in the ring groove.