CN218688204U

CN218688204U - Microwave-enhanced isotope dissolving device

Info

Publication number: CN218688204U
Application number: CN202222895991.7U
Authority: CN
Inventors: 田利刚; 周腾飞; 金春晖; 郦晨昊
Original assignee: Hangzhou Smart Technology Co ltd
Current assignee: Hangzhou Smart Technology Co ltd
Priority date: 2022-11-01
Filing date: 2022-11-01
Publication date: 2023-03-24
Anticipated expiration: 2032-11-01

Abstract

The utility model belongs to the technical field of the isotope separation technique and specifically relates to an isotope dissolving device is reinforceed to microwave, including kettle cover, the cauldron body, mesa, agitating unit, microwave import, feed inlet, sealed cooperation can be dismantled with the cauldron body to the kettle cover, mesa demountable installation is on the kettle cover, microwave import and feed inlet all set up on the mesa and communicate the inside cavity behind kettle cover and the cooperation of the cauldron body, agitating unit sets up on the mesa, and agitating unit's stirring rake stretches into the inside cavity behind kettle cover and the cooperation of the cauldron body, outside microwave generating device and microwave access connection, the utility model discloses a microwave heating improves heating efficiency, homogeneity and accuse temperature precision.

Description

Microwave-enhanced isotope dissolving device

Technical Field

The utility model relates to an isotope separation technology field, the concrete field is a microwave intensification isotope dissolving device.

Background

With the development of modern medical and nuclear medicine instruments, medical isotopes play an increasingly important role in disease diagnosis and clinical treatment. At present, reactors and accelerators are mainly adopted for producing medical isotopes, wherein the accelerators are used as an important mode for producing the medical isotopes, and the defects of the types of radioactive isotopes are made up to a great extent. A target containing a specific stable nuclide is bombarded by high-speed charged particles generated by an accelerator, so that a variety of radioactive isotopes can be obtained. Currently, the number of radionuclide species that can be produced with accelerators accounts for over 60% of the known number of radionuclides. The accelerator directly irradiates to produce the medical isotope, and has the advantages of low construction cost, high target utilization rate and the like. The medical isotope produced by the target irradiated by the accelerator is usually dissolved and then separated and purified by ion exchange or extraction chromatography, so that the high-efficiency dissolution of the target and the property of the solution are important factors influencing the separation and purification performance and the product yield.

The target dissolving device is mainly used for dissolving the target after irradiation, and the target has stronger radioactivity after irradiation, so the device is required to be placed in a hot chamber and has good irradiation resistance. In order to meet the technological requirements of target dissolution, a dissolving device has the functions of heating and stirring the solution, and the heating temperature is required to be accurately controlled (usually +/-0.5 ℃). The target piece is dissolved by adopting strong corrosive media such as hydrofluoric acid, concentrated nitric acid, concentrated sulfuric acid and the like, and meanwhile, impurity elements are brought into a dissolving solution to influence isotope separation performance and product purity due to the fact that the dissolving solution cannot be corroded by equipment materials in the dissolving process, so that the requirements on the materials of dissolving equipment are strict. Target dissolving device main part equipment is for dissolving reation kettle, and the material adopts 316L stainless steel inside lining PEEK, because of PEEK has good corrosion resisting property and resistant irradiation performance, but the PEEK coefficient of heat conduction is poor (0.25W/m ℃), this heating efficiency and the accuse temperature precision that directly influences target dissolving in-process solution, if adopt ordinary electric heating mode, can appear being heated the inequality, heating efficiency hangs down, the local overheated scheduling problem of PEEK inner bag.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a microwave strengthened isotope dissolving device, which adopts microwave heating to improve the heating efficiency, uniformity and temperature control precision and simultaneously avoids material damage caused by direct heating of a PEEK inner container of a reaction tank; meanwhile, all the modules can be remotely maintained and replaced by a hot chamber manipulator.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an isotope dissolving device is reinforceed to microwave, includes kettle cover, the cauldron body, mesa, agitating unit, microwave import, feed inlet, sealed cooperation can be dismantled with the cauldron body to the kettle cover, mesa demountable installation is on the kettle cover, microwave import and feed inlet all set up on the mesa and communicate the inside cavity behind kettle cover and the cooperation of the cauldron body, agitating unit sets up on the mesa, and agitating unit's stirring rake stretches into the inside cavity behind kettle cover and the cooperation of the cauldron body, outside microwave generating device and microwave access connection.

Preferably, the stirring device is a magnetic stirring device, the stirring end of the magnetic stirring device is positioned in an inner cavity formed by the kettle cover and the kettle body after being matched, the driving end of the magnetic stirring device is positioned on the outer side of the table board, and the driving end and the stirring end of the magnetic stirring device are mutually matched in a magnetic manner.

Preferably, the table top and the kettle cover are fixedly connected through quick-release bolts.

Preferably, a PEEK inner barrel is arranged in the kettle body.

Preferably, the kettle body is made of PEEK material.

Compared with the prior art, the beneficial effects of the utility model are that: the kettle body is made of corrosion-resistant and irradiation-resistant PEEK materials, and materials in the dissolving device are heated through microwaves, so that the heating efficiency, uniformity and temperature control precision are improved;

meanwhile, material damage caused by direct heating of the PEEK inner container of the reaction tank is avoided;

in addition, all the modules can be remotely repaired and replaced by a hot chamber robot.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. a microwave inlet; 2. a magnetic stirring device; 3. a feed inlet; 4. a table top; 5. a quick release bolt; 6. a kettle cover; 7. dissolving kettle shell.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: the utility model provides an isotope dissolving device is reinforceed to microwave, includes the cauldron lid, the cauldron body, mesa, agitating unit, microwave import, feed inlet, the sealed cooperation can be dismantled with the cauldron body to the cauldron lid, mesa demountable installation is on the cauldron lid, microwave import and feed inlet all set up on the mesa and communicate the inside cavity behind cauldron lid and the cooperation of the cauldron body, agitating unit sets up on the mesa, and agitating unit's stirring rake stretches into the inside cavity behind cauldron lid and the cooperation of the cauldron body, outside microwave generating device and microwave access connection.

The stirring device is a magnetic stirring device, the stirring end of the magnetic stirring device is positioned in an inner cavity formed by the kettle cover and the kettle body in a matched mode, the driving end of the magnetic stirring device is positioned on the outer side of the table board, and the driving end of the magnetic stirring device is in magnetic force fit with the stirring end.

The table top and the kettle cover are connected and fixed through quick-release bolts.

The internal PEEK inner tube that is provided with of cauldron simultaneously contains the cold chamber of gas, can carry out rapid cooling to the cauldron is internal.

The cauldron body is made by the PEEK material, has corrosion-resistant and irradiation's function.

Adopt the dissolution cauldron form, this cauldron body bearing capacity is strong, and cauldron body material adopts corrosion-resistant and irradiation's PEEK material. By adopting microwave heating, the heating is uniform without causing local overheating while the heating rate is ensured. And the microwave energy feedback device is used as a combined part of the reaction kettle, is externally arranged outside the hot chamber, and is convenient to overhaul and maintain

Through this technical scheme, isotope target is thrown into the internal portion of cauldron from the feed inlet, injects proper amount solution in dissolving the cauldron and mainly is concentrated acid to carry out microwave heating, stirring to solution, dissolve the metal thorium target after the irradiation under the certain temperature pressure condition, dissolve the back cauldron body and descend, take out the PEEk inner tube through the manipulator and carry out the target residual material and get rid of.

The microwave is utilized to heat materials in the reaction kettle, and the principle of microwave heating is different from that of common electric heating or heat conducting oil heating, so that the materials are rapidly heated, the materials in each position in the reaction kettle are uniformly heated, the heating inertia is avoided, the microwave heating is immediately stopped after a power supply is cut off, the energy is not supplied to the materials to continuously heat, the temperature can be accurately raised to a set temperature, and the final product achieves an ideal effect.

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

Claims

1. A microwave reinforced isotope dissolving device is characterized in that: including kettle cover, the cauldron body, mesa, agitating unit, microwave import, feed inlet, the sealed cooperation can be dismantled with the cauldron body to the kettle cover, mesa demountable installation is on the kettle cover, microwave import and feed inlet all set up on the mesa and communicate the inside cavity behind kettle cover and the cauldron body cooperation, agitating unit sets up on the mesa, and agitating unit's stirring rake stretches into the inside cavity behind kettle cover and the cauldron body cooperation, outside microwave generating device and microwave access connection.

2. A microwave-enhanced isotope dissolving apparatus in accordance with claim 1, wherein: agitating unit is magnetic stirring device, and magnetic stirring device's stirring end is arranged in the inside cavity behind kettle cover and the cooperation of the cauldron body, and magnetic stirring device's drive end is arranged in the mesa outside, mutual magnetic force fit between magnetic stirring device's drive end and the stirring end.

3. A microwave-enhanced isotope dissolving apparatus in accordance with claim 1, wherein: the table top and the kettle cover are connected and fixed through quick-release bolts.

4. A microwave-enhanced isotope dissolving apparatus in accordance with claim 1, wherein: and a PEEK inner barrel is arranged in the kettle body.

5. A microwave-enhanced isotope dissolving apparatus in accordance with claim 1, wherein: the cauldron body is made by the PEEK material.