Multi-flux parallel ashing furnace

Abstract

The utility model relates to a multi-flux parallel ashing furnace, which belongs to the technical field of ashing treatment equipment and comprises an ashing furnace body, an ashing component, a door component and a lifting component. The ashing assemblies and the door body assemblies are vertically distributed in an inner cavity of the ashing furnace body, the multiple ashing assemblies and the door body assemblies vertically correspond to each other in a one-to-one mode, and the door body assemblies can ascend into the ashing assemblies through the lifting assemblies. According to the utility model, a plurality of groups of ashing components and door body components are arranged and are in one-to-one correspondence, so that a plurality of same or different samples can be treated at the same time, the independent metal cavity design ensures that each sample is treated in a completely isolated environment, and the problem of cross contamination caused by mutual contact of the samples is avoided; the experimental efficiency and the sample processing speed are greatly improved, and the method is particularly suitable for application scenes needing a large number of tests and meets the use requirements.

Description

Technical Field

[0001] The utility model relates to an ashing furnace, in particular to a multi-flux parallel ashing furnace, which belongs to the technical field of ashing processing equipment. Background Art

[0002] Ashing is a method of converting the organic components in organic samples into inorganic ash by high-temperature heating, so as to conduct further elemental analysis. Currently, there are two types of ashing instruments: electric heating and microwave. The main problem of electric heating equipment is insufficient oxygen supply, which affects the ashing process; microwave ashing furnaces can solve the problems of insufficient oxygen supply and gas exchange in electric ashing furnaces, but the existing microwave ashing furnaces only have a single furnace, and only one sample can be ashed at a time, which leads to the problem of long ashing time for multiple samples. If multiple samples are processed in one furnace, there will be problems of mutual interference between samples. Utility Model Content

[0003] Technical purpose: In order to overcome the deficiencies in the prior art, the utility model provides a multi-flux parallel ashing furnace, which can process multiple samples at the same time without interfering with each other by setting up multiple groups of independent ashing components, thereby greatly improving the experimental efficiency and sample processing speed.

[0004] Technical solution: To achieve the above-mentioned purpose, the utility model discloses a multi-flux parallel ashing furnace, including an ashing furnace body, an ashing assembly, a door assembly and a lifting assembly; the ashing assembly and the door assembly are distributed up and down in the inner cavity of the ashing furnace body, and a number of the ashing assemblies correspond one by one to the door assembly up and down, and the door assembly can be raised to the ashing assembly through the lifting assembly.

[0005] Furthermore, several of the ashing components are horizontally arranged, which include a metal cavity, a condenser, a smoke exhaust pipe and a crucible cover; the inner wall of the metal cavity is connected with an insulation layer and an insulation sleeve in sequence, the smoke exhaust pipe extends along the top surface of the metal cavity to the inside of the cavity and is connected to the crucible cover, and the smoke exhaust pipe outlet is connected to the condenser; the side wall of the metal cavity is connected with a microwave source.

[0006] Furthermore, the door body assembly includes a tray, a firing plate and an auxiliary heating plate; the firing plate is embedded and connected to the surface of the tray, the auxiliary heating plate is embedded and connected to the surface of the firing plate, and a crucible is placed on the surface of the auxiliary heating plate; several of the door body assemblies are horizontally arranged and correspond one by one to the metal cavity, and the diameter of the tray is larger than the inner diameter of the metal cavity.

[0007] Furthermore, the lifting assembly includes an optical axis guide rail and a lifting rod; the retractable end of the lifting rod is connected to the tray, and the tray is connected to the optical axis guide rail through a connecting plate. The lifting rod can drive the tray to move along the optical axis guide rail. When the top surface of the tray moves to abut against the bottom surface of the metal cavity, the crucible cover is set on the top surface of the crucible.

[0008] Furthermore, an oil leakage port is provided at the bottom of the condenser.

[0009] Furthermore, the smoke exhaust pipe is provided with an air inlet connected thereto.

[0010] Furthermore, the ashing furnace body is connected to an inspection door at the ashing assembly.

[0011] Furthermore, a touch screen and a gas flow meter are connected to the surface of the ashing furnace body, and heat dissipation holes are arranged on the side walls of the ashing furnace body.

[0012] The utility model is capable of processing multiple identical or different samples at the same time by providing multiple groups of ashing components and door components, and the two correspond one to one. The independent metal cavity design ensures that each sample is processed in a completely isolated environment, eliminating the problem of cross contamination caused by contact between samples, greatly improving the experimental efficiency and sample processing speed, and is particularly suitable for application scenarios that require a large number of tests to meet usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the front view of the utility model;

[0014] Figure 2 It is a side view of the utility model;

[0015] Figure 3 It is a partial structural schematic diagram of the utility model;

[0016] Figure 4 It is a cross-sectional view of the utility model in working state.

[0017] In the figure, 1. ash furnace body; 2. ash assembly; 201. metal cavity; 202. condenser; 203. smoke exhaust pipe; 204. crucible cover; 3. door assembly; 301. tray; 302. firing plate; 303. auxiliary heating plate; 4. lifting assembly; 401. optical axis guide rail; 402. lifting rod; 5. insulation layer; 6. insulation sleeve; 7. microwave source; 8. crucible; 9. connecting plate; 10. oil leakage port; 11. air inlet; 12. inspection door; 13. touch screen; 14. gas flow meter; 15. heat dissipation hole. DETAILED DESCRIPTION

[0018] The following is combined with Figure 1 To Attachment Figure 4 The principles and features of the present invention are described, and the examples given are only used to explain the present invention, and are not used to limit the scope of the present invention.

[0019] A multi-flux parallel ashing furnace comprises an ashing furnace body 1, an ashing assembly 2, a door assembly 3 and a lifting assembly 4; the ashing assembly 2 and the door assembly 3 are distributed up and down in the inner cavity of the ashing furnace body 1, and a plurality of the ashing assemblies 2 correspond one to another up and down with the door assembly 3, and the door assembly 3 can be raised to the ashing assembly 2 by the lifting assembly 4.

[0020] Several of the ashing components 2 are arranged horizontally, and include a metal cavity 201, a condenser 202, a smoke exhaust pipe 203 and a crucible cover 204; the inner wall of the metal cavity 201 is connected with an insulation layer 5 and an insulation sleeve 6 in sequence, the smoke exhaust pipe 203 extends along the top surface of the metal cavity 201 to the inside of the cavity and is connected to the crucible cover 204, and the outlet of the smoke exhaust pipe 203 is connected to the condenser 202; the side wall of the metal cavity 201 is connected with a microwave source 7, and two microwave sources 7 are symmetrically connected to both sides of the metal cavity 201, and each metal cavity 201 adopts independent microwave heating, independent temperature control and independent gas switching control.

[0021] By connecting the condenser 202 to the smoke exhaust pipe 203, the tar generated during the ashing process can be condensed, thereby reducing the damage of the tar to the equipment and effectively preventing the pollution of the atmosphere.

[0022] The door body assembly 3 includes a tray 301, a firing plate 302 and an auxiliary heating plate 303; the firing plate 302 is embedded and connected to the surface of the tray 301, the auxiliary heating plate 303 is embedded and connected to the surface of the firing plate 302, and a crucible 8 is placed on the surface of the auxiliary heating plate 303; a plurality of the door body assemblies 3 are horizontally arranged and correspond one by one to the metal cavity 201, and the diameter of the tray 301 is larger than the inner diameter of the metal cavity 201. When the tray 301 lifts the crucible 8 and moves upward, when the tray 301 abuts against the metal cavity 201, the tray 301 can be restricted from continuing to move.

[0023] The lifting assembly 4 includes an optical axis guide rail 401 and a lifting rod 402; the retractable end of the lifting rod 402 is connected to the tray 301, and the tray 301 is connected to the optical axis guide rail 401 through a connecting plate 9. The lifting rod 402 can drive the tray 301 to move along the optical axis guide rail 401. When the top surface of the tray 301 moves to abut against the bottom surface of the metal cavity 201, the crucible cover 204 is covered on the top surface of the crucible 8.

[0024] The bottom of the condenser 202 is provided with an oil leakage port 10, so as to facilitate the centralized recovery of the cooled tar through pipelines.

[0025] The smoke exhaust pipe 203 is provided with an air inlet 11 connected thereto. This design adds an active air intake device on the basis of microwave ashing, and actively exchanges air according to the temperature. The airflow outside the air inlet 11 adopts an external inert gas or air, and the flow rate and flow velocity are controlled by a valve. The valve is automatically controlled and automatically switched according to conditions such as temperature and power. Specifically: in the drying section, the wet gas in the metal cavity 201 is exchanged with external dry air (or inert gas such as nitrogen) to quickly achieve the purpose of drying; in the carbonization section, it is automatically switched to no air (oxygen) or to introduce protective gas such as nitrogen to ensure that no open flame is generated in the carbonization stage; in the ashing stage, it is automatically switched to air (oxygen) to ensure that the flue gas and the material are fully in contact and react fully in the ashing stage.

[0026] The ashing furnace body 1 is connected to the ashing assembly 2 with an inspection door 12 to facilitate inspection and maintenance of the ashing assembly 2 .

[0027] The surface of the ashing furnace body 1 is connected with a touch screen 13 and a gas flow meter 14, the gas flow meter 14 can monitor the gas supply and realize flow control, and the side wall of the ashing furnace body 1 is provided with heat dissipation holes 15, which can effectively dissipate heat and extend the service life of the equipment.

[0028] The present application sets up multiple groups of ashing components 2 and door components 3, and the two correspond one to one, so that multiple identical or different samples can be processed at the same time. The independent metal cavity 201 design ensures that each sample is processed in a completely isolated environment, eliminating the cross-contamination problem caused by contact between samples, greatly improving the experimental efficiency and sample processing speed, and is particularly suitable for application scenarios that require a large number of tests to meet usage requirements.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-flux parallel ashing furnace, characterized in that: The invention comprises an ashing furnace body (1), an ashing assembly (2), a door assembly (3) and a lifting assembly (4); the ashing assembly (2) and the door assembly (3) are vertically distributed in the inner cavity of the ashing furnace body (1); a plurality of ashing assemblies (2) and the door assembly (3) correspond one to another in the upper and lower parts; and the door assembly (3) can be lifted into the ashing assembly (2) by the lifting assembly (4).

2. The multi-flux parallel ashing furnace according to claim 1, characterized in that: A plurality of ashing assemblies (2) are arranged horizontally, and comprise a metal cavity (201), a condenser (202), a smoke exhaust pipe (203) and a crucible cover (204); the inner wall of the metal cavity (201) is sequentially connected with a thermal insulation layer (5) and a thermal insulation sleeve (6); the smoke exhaust pipe (203) extends along the top surface of the metal cavity (201) to the interior of the cavity and is connected to the crucible cover (204); the outlet of the smoke exhaust pipe (203) is connected to the condenser (202); and the side wall of the metal cavity (201) is connected with a microwave source (7).

3. The multi-flux parallel ashing furnace according to claim 2, characterized in that: The door body assembly (3) comprises a tray (301), a firing plate (302) and an auxiliary heating plate (303); the firing plate (302) is embedded and connected to the surface of the tray (301), the auxiliary heating plate (303) is embedded and connected to the surface of the firing plate (302), and a crucible (8) is placed on the surface of the auxiliary heating plate (303); a plurality of the door body assemblies (3) are horizontally arranged and correspond one to one with the metal cavity (201), and the diameter of the tray (301) is larger than the inner diameter of the metal cavity (201).

4. The multi-flux parallel ashing furnace according to claim 3, characterized in that: The lifting assembly (4) comprises an optical axis guide rail (401) and a lifting rod (402); the retractable end of the lifting rod (402) is connected to the tray (301), and the tray (301) is connected to the optical axis guide rail (401) via a connecting plate (9); the lifting rod (402) can drive the tray (301) to move along the optical axis guide rail (401); when the top surface of the tray (301) is moved to abut against the bottom surface of the metal cavity (201), the crucible cover (204) is covered on the top surface of the crucible (8).

5. The multi-flux parallel ashing furnace according to claim 2, characterized in that: An oil leakage port (10) is provided at the bottom of the condenser (202).

6. The multi-flux parallel ashing furnace according to claim 2, characterized in that: The smoke exhaust pipe (203) is provided with an air inlet (11) connected thereto.

7. The multi-flux parallel ashing furnace according to claim 1, characterized in that: The ashing furnace body (1) is connected to an inspection door (12) at the ashing assembly (2).

8. The multi-flux parallel ashing furnace according to claim 1, characterized in that: The surface of the ashing furnace body (1) is connected to a touch screen (13) and a gas flow meter (14), and the side wall of the ashing furnace body (1) is provided with heat dissipation holes (15).

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