CN203551369U - Ashing device applicable to sample pretreatment - Google Patents
Ashing device applicable to sample pretreatment Download PDFInfo
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- CN203551369U CN203551369U CN201320708864.XU CN201320708864U CN203551369U CN 203551369 U CN203551369 U CN 203551369U CN 201320708864 U CN201320708864 U CN 201320708864U CN 203551369 U CN203551369 U CN 203551369U
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Abstract
The utility model provides an ashing device applicable to sample pretreatment. The ashing device comprises an ashing vessel, wherein an air inlet and an air outlet are formed in the ashing vessel; the air inlet is connected with an air inlet pipeline; the air outlet is connected with an air outlet pipeline; a condensation reflux structure is arranged on the air outlet pipeline; the ashing vessel comprises an ashing vessel main body and an ashing vessel cover; the ashing vessel main body is detachably connected with the ashing vessel cover in a sealing manner. Due to the ashing vessel and the condensation reflux structure on the air outlet pipeline, most of polymer volatiles are condensed and reentered the ashing vessel to be subjected to secondary carbonization, so that the loss of substances to be tested is effectively avoided, and the test accuracy is improved; due to magnetrons and microwaves for heating, the efficiency of sample pretreatment is improved, the labor strength is reduced, the ashing time is shortened, and samples are heated evenly; meanwhile, as heating energy, the microwaves are used for directly heating mediums, so that the precise control of temperature is ensured.
Description
Technical field
The utility model belongs to sample survey pretreatment technology field, is specifically related to a kind of sample pre-treatments cineration device.
Background technology
Ash content is mainly comprised of some aphlogistic mineral impurity, contains calcium, magnesium, iron, silicon, and the even arsenic, barium, beryllium, lead, mercury, zinc etc. of trace of trace, also contains radioelement simultaneously.Due to the numerous harmful element having in ash content, thereby ash analysis is the conventional sense project of present food, foodstuff grain class.
Ashing is processed as a kind of dry method of obtaining ash content and is cleared up technology, is widely used in the sample pre-treatments technique of detection field.Present disposal route is, first detected sample is placed on to dry, carbonization on electric hot plate, sends into afterwards ashing in muffle furnace.Detected sample generally there will be a large amount of steam at drying stage, in carbonization section, there will be a large amount of organic gass.Accurate for what detect, avoid the loss of detection elements in detected sample, at carbonation stage, need detected sample to be heated evenly, to prevent naked light, need often sample is stirred and be stirred; Thereby current drying and charing stage belong to open operation, avoid detecting detection elements in sample as far as possible and affected by air temperature and current and scatter and disappear, thus can only carry out slowly, a common treatment cycle be tens even tens hours, need larger workload, and efficiency is lower.But still have parts of fine soot particle at carbonation stage, by air-flow, taken away, cause testing result inaccurate; Especially some detects sample and in carbonization process, there will be a large amount of polymer substance (as tar), be distributed in the gas that charing produces, and charring gas is unpleasant because of taste, and contaminated environment, adopts the mode of fuming cupboard air draft to be processed more; And macromolecular substances can be taken away part element to be measured in this processing procedure, to test result, brought inaccuracy.At present, the ashing stage completes in muffle furnace, and conventionally muffle furnace is open design, and auxiliary combustion gas in ashing (oxygen or air) is controlled difficulty, easily occurs naked light and affects test result.
In addition, because detected sample is of a great variety, from food to fruit, from dairy produce to poultry product, different samples are because of its contained material difference, for example fish protein is more, meat fat is more, and cereals sugar is more, the technique of its processing, comprise that temperature and time is closely not identical, need to manually do at present a large amount of interpretation of records work.
In addition, when the radioelement in detected sample detects, because the content of radioelement in testing sample is extremely low, in order to obtain the ash content to be measured of conventional 10g, the quality of pending fresh goods often feather weight other, such as the ashing processing of tinned fruit series products, need 3.7kg fresh goods sample to realize, there is the fresh ratio of larger ash and require.Simultaneously, due to the sublimation temperature point of radioelement, for stopping the impact of material distillation, technique is had to strict temperature requirement, conventionally the ceiling temperature of the sample ashing of detection of radioactive element is to be no more than 400 ℃, when even the element of some low sublimation temperature point detects, treatment temperature is 200 ~ 300 ℃.So the sample pre-treatments workload while detecting for radioelement is huge, the fresh goods quality of processing is large, requires temperature low, and the cycle of processing is long.
Utility model content
The utility model for the detected sample existing in prior art at carbonation stage, the problem of part detection elements is taken away in ventilation, a kind of sample pre-treatments cineration device is provided, by ashing vessel are set, and condensing reflux structure is set on outlet pipe, makes the condensation of most macromolecule volatile matter, and reenter ashing vessel, carry out secondary charing, effectively avoided scattering and disappearing of test substance, improved the accuracy of test.
For reaching above-mentioned technical purpose, the utility model is realized by the following technical solutions:
A kind of sample pre-treatments cineration device, comprises ashing vessel, on described ashing vessel, is provided with air intake opening and gas outlet, and described air intake opening connects air inlet pipeline, and described gas outlet connects outlet pipe, is provided with condensing reflux structure on described outlet pipe; Described ashing vessel comprise ashing vessel body and ashing vessel cover, described ashing vessel body and detachable airtight connection of ashing vessel cover.
Further, described air intake opening and gas outlet are arranged on described ashing vessel and cover.
In order to facilitate backflow and the collection of condensed fluid, described condensing reflux structure is vertical setting.
In order to improve the efficiency of sample pre-treatments, reduce labour intensity, shorten the ashing time, described ashing vessel are positioned at described ashing chamber, on described ashing chamber, be provided with the through hole that described air inlet pipeline and outlet pipe pass, described condensing reflux structure is positioned on the outlet pipe outside described ashing chamber, and the outside in described ashing chamber is fixed with magnetron.
Further, in described ashing chamber, be provided with the lifting tray for the assembling of ashing vessel.
Further, described ashing vessel body is positioned on described lifting tray.
Further, described ashing vessel cover is positioned on described lifting tray.
Further, described ashing chamber has adopted ceramic fiber insulation material.
In order to prevent the leakage of microwave and compact conformation, the overall appearance of sample pre-treatments cineration device, sample pre-treatments also has shell with cineration device, and described ashing chamber is fixing in the enclosure, and described ashing chamber has leakproof door body.
Further, on described anti-leak door body, be provided with insulation construction, airtight construction and leakage-proof structure.
In order further to shorten the ashing time, on described air inlet pipeline, gas admittance valve is housed, described outlet pipe is provided with vaccum-pumping equipment.
Further, on described outlet pipe, T-valve is housed.
Further, described outlet pipe is provided with on blower fan and/or described air inlet pipeline and is provided with air compressor machine.
In order to control the airshed in ashing vessel, on described air inlet pipeline, be provided with solenoid valve and gas flow regulating valve.
In order to control the temperature in ashing vessel, in described ashing vessel, also there is thermal detector, described thermal detector is arranged in air inlet pipeline, or offers thermometer hole on described ashing vessel, and described thermal detector is through described thermometer hole.
Further, described thermal detector adopts metal armouring thermopair.
Further, described ashing vessel adopt pottery or glass-like materials.
The sample pre-treatments cineration device that the utility model provides, by ashing vessel are set, and condensing reflux structure is set on outlet pipe, make the condensation of most macromolecule volatile matter, and reenter ashing vessel, carry out secondary charing, effectively avoided scattering and disappearing of test substance, improved the accuracy of test.By magnetron is set, use microwave heating, improved the efficiency of sample pre-treatments, reduce labour intensity, shorten the ashing time, sample is heated evenly; And heating energy source is microwave, microwave is directly guaranteed the accurate control of temperature for dielectric heating.Whole processing environment belongs to closed system simultaneously, can effectively reduce airflow influence; And enclosed environment can be realized application of vacuum, at oxygen deprivation state, do not have the generation of naked light yet, thus can fast processing sample.In addition use the sample pre-treatments cineration device in the utility model, dry, carbonization, the podzolic process of the pre-treatment of detected sample complete continuously, have avoided the repeatedly transfer of detected sample, and treatment process is simple, and the processing time is short.
Read by reference to the accompanying drawings after embodiment of the present utility model, other features of the present utility model and advantage will become clearer.
Accompanying drawing explanation
The sample pre-treatments that Fig. 1 proposes for the utility model structural representation of first embodiment of cineration device;
Fig. 2 is the main TV structure schematic diagram of Fig. 1;
Fig. 3 is the local structure for amplifying schematic diagram of a-quadrant in Fig. 2;
Fig. 4 is that structural scheme of mechanism is looked on the right side in Fig. 1;
The sample pre-treatments that Fig. 5 proposes for the utility model structural representation of second embodiment of cineration device.
Embodiment
For making object, technical scheme and the advantage of the utility model embodiment clearer, below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.
In description of the present utility model, it should be noted that, orientation or the position relationship of the indication such as term " interior ", " outward " are based on position relationship shown in the drawings, only the utility model and simplified characterization for convenience of description, rather than indicate or imply that the device of indication or element must have specific orientation, with specific orientation, construct and operation, therefore can not be interpreted as restriction of the present utility model.
Consult Fig. 1-4, first embodiment of cineration device for the sample pre-treatments that the utility model proposes
,sample pre-treatments cineration device, comprises ashing vessel 1, is provided with air intake opening 11 and gas outlet 12 on ashing vessel 1, and air intake opening 11 connects air inlet pipeline 2, and gas outlet 12 connects outlet pipe 3, is provided with condensing reflux structure 4 on outlet pipe 3.
Ashing vessel 1 comprise ashing vessel body 13 and ashing vessel cover 14, ashing vessel body 13 and detachable airtight connection of ashing vessel cover 14.
In the present embodiment, by ashing vessel 1 are set, and condensing reflux structure 4 is set on outlet pipe 3, make the condensation of most macromolecule volatile matter, and reenter ashing vessel 1, carry out secondary charing, effectively avoid scattering and disappearing of test substance, improved the accuracy of test.
In the present embodiment, ashing vessel cover 14 is fastened in ashing vessel body 13, and the fastening place with ashing vessel cover 14 in ashing vessel body 13 respectively, is provided with frosted structure for sealing.Air intake opening 11 and gas outlet 12 are arranged on ashing vessel cover 14; In order to facilitate backflow and the collection of condensed fluid, condensing reflux structure 4 is set to vertical, like this from gas outlet 12 gas out, through condensing reflux structure 4, the macromolecule volatile matter condensation formation drop in gas is sticked on the inwall of condensing reflux structure 4, condensing reflux structure 4 is set to vertical, condensed drop is back in ashing vessel cover 14, shown in Figure 3.
In other embodiment, condensing reflux structure 4 lower ends also can connect other containers, condensation is formed to drop and reclaim, and are putting into ashing vessel 1 afterwards.
For the insulation in ashing chamber 5, ashing chamber 5 has adopted ceramic fiber insulation material.The convenience of assembling for ashing vessel 1, namely the ashing vessel body 13 that is contained with detected sample is placed into behind ashing chamber 5, the assembling of ashing vessel body 13, ashing vessel cover 14 and air inlet pipeline 2, outlet pipe 3 is provided with the lifting tray 52 assembling for ashing vessel 1 in ashing chamber 5.In the present embodiment, in the inner bottom surface in ashing chamber 5, be provided with lifting tray 52, the ashing vessel body 13 of detected sample will be contained with, add a cover after ashing vessel cover 14, put on the lifting tray 52 in ashing chamber 5, lifting tray 52 is risen, make air intake opening 11 and gas outlet 12 on ashing vessel cover 14, coordinate with air inlet pipeline 2, outlet pipe 3, complete the assembling of ashing vessel 1, shown in Figure 3.
In other embodiments, also can ashing vessel cover 14 and air inlet pipeline 2, outlet pipe 3 is fixing, and the top in ashing chamber arranges lifting structure, allows lifting structure promote ashing vessel cover 14 and moves downward, and is fastened in ashing vessel body 13.Lifting structure can be set, adopt manual setting.
In order to prevent the leakage of microwave and compact conformation, the overall appearance of sample pre-treatments cineration device, sample pre-treatments also has shell 7 with cineration device, and ashing chamber 5 is fixed in shell 7, and ashing chamber 5 has airtight anti-leak door body 51.On anti-leak door body 51, be provided with insulation construction, airtight construction and leakage-proof structure.
Shown in Fig. 1 and Fig. 4, in order further to shorten the ashing time, gas admittance valve 21 is housed on air inlet pipeline 2, and is also provided with vaccum-pumping equipment 8 at outlet pipe 3.Dry and carbonation stage at sample is opened vaccum-pumping equipment 8, and close gas admittance valve 21, in making ashing vessel 1, carbonation stage vacuumizes, under oxygen deprivation state, sample carbonization in ashing vessel 1 does not have the generation of naked light, in the temperature range allowing, can improve temperature so as far as possible, thus can fast processing sample; The sample pre-treatments cineration device that adopts the utility model to propose, the treatment cycle of sample is in 3 hours conventionally, and more unmanageable sample also can complete in 10 hours.
T-valve 31 is housed on outlet pipe 3, by the switch of T-valve 31, outlet pipe 3 is communicated with vacuum equipment 8, or is in communication with the outside.
In order to guarantee the air capacity that the amount of oxygen in ashing vessel 1 enters to be in other words conj.or perhaps provided with air compressor machine 9 on air inlet pipeline 2 in the ashing stage, in the ashing stage, the air pressure with certain pressure is entered in ashing vessel 1.In order to control the airshed in ashing vessel 1, on air inlet pipeline 1, be provided with solenoid valve and gas flow regulating valve, shown in Fig. 1 and Fig. 4.
In other embodiments, in order to guarantee the air capacity that the amount of oxygen in ashing vessel 1 enters in other words conj.or perhaps in the ashing stage, also can blower fan be set at outlet pipe 3, by by the gas sucking-off in ashing vessel 1, make air enter ashing vessel 1 by air inlet pipeline 2.Or simultaneously be provided with air compressor machine 9 on air inlet pipeline 2, at outlet pipe 3, blower fan is set.
In order to control the temperature in ashing vessel 1, in ashing vessel 1, be also provided with thermal detector 15, in the present embodiment, thermal detector 15 is arranged in air inlet pipeline 2, and thermal detector 15 adopts metal armouring thermopair; Described ashing vessel adopt pottery or glass-like materials.
In other embodiments, also can on ashing vessel 1, offer thermometer hole, thermal detector 15 is through thermometer hole.
Consult Fig. 1-4, the course of work of sample pre-treatments cineration device in the present embodiment be described:
A, first the ashing vessel 1 that are contained with detected sample are placed into ashing chamber 5, and are connected with air inlet pipeline 2, outlet pipe 3, thermal detector 10 is inserted in air pipe 2;
B, close anti-leak door body 53, close gas admittance valve 21, and adjust T-valve 31 outlet pipe 3 is communicated with vaccum-pumping equipment 8;
C, unlatching vaccum-pumping equipment 8, open magnetron 6, starts drying stage;
D, after setting-up time, enter carbonation stage, open the condensation trap of condensation return-flow structure 4;
E, after setting-up time, enter the ashing stage, the gas admittance valve 21 of performing fighting, cuts out vaccum-pumping equipment 8 and condensing reflux structure 4, adjust T-valve 31 outlet pipe 3 is in communication with the outside; Open air compressor machine 9;
F, process setting-up time, complete the ashing processing before sample detection.
Like this in a continuous technological process, complete the technological processs such as dry, charing in sample pre-treatments technique, ashing; And improved the efficiency of sample pre-treatments, reduced labour intensity, shortened the ashing time; Effectively avoid scattering and disappearing of test substance, improved the accuracy of test.
Consult Fig. 5, second embodiment of the sample pre-treatments that proposes of the utility model cineration device, the key distinction of the present embodiment and first embodiment is to be provided with blower fan on air outlet pipeline, and other structures can adopt the structure identical with first embodiment.
In the present embodiment, sample pre-treatments cineration device, comprises ashing vessel 10, on ashing vessel 10, be provided with air intake opening and gas outlet, air intake opening connects air inlet pipeline 20, and gas outlet connects outlet pipe 30, is provided with condensing reflux structure 40 on outlet pipe 30.
Ashing vessel 10 comprise ashing vessel body and ashing vessel cover, ashing vessel body and detachable airtight connection of ashing vessel cover.
In the present embodiment, by ashing vessel 10 are set, and condensing reflux structure 40 is set on outlet pipe 30, make the condensation of most macromolecule volatile matter, and reenter ashing vessel 1, carry out secondary charing, effectively avoid scattering and disappearing of test substance, improved the accuracy of test.
In order to guarantee the air capacity that the amount of oxygen in ashing vessel 10 enters in other words conj.or perhaps in the ashing stage, at outlet pipe 30, blower fan 90 is set, in the ashing stage, will pass through the gas sucking-off in blower fan 90 ashing vessel 1, make air enter ashing vessel 10 by air inlet pipeline 20, thereby make air stream through ashing vessel 10, make sample carry out podzolic process.
The above, it is only preferred embodiment of the present utility model, be not the restriction of the utility model being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not depart from, any simple modification, equivalent variations and the remodeling above embodiment done according to technical spirit of the present utility model, still belong to the protection domain of technical solutions of the utility model.
Claims (10)
1. a sample pre-treatments cineration device, comprises ashing vessel, it is characterized in that, on described ashing vessel, be provided with air intake opening and gas outlet, described air intake opening connects air inlet pipeline, and described gas outlet connects outlet pipe, is provided with condensing reflux structure on described outlet pipe; Described ashing vessel comprise ashing vessel body and ashing vessel cover, described ashing vessel body and detachable airtight connection of ashing vessel cover.
2. sample pre-treatments cineration device according to claim 1, is characterized in that, described condensing reflux structure is vertical setting.
3. sample pre-treatments cineration device according to claim 1, is characterized in that, described air intake opening and gas outlet are arranged on described ashing vessel and cover.
4. sample pre-treatments cineration device according to claim 1, it is characterized in that, described ashing vessel are positioned at described ashing chamber, on described ashing chamber, be provided with the through hole that described air inlet pipeline and outlet pipe pass, described condensing reflux structure is positioned on the outlet pipe outside described ashing chamber, and the outside in described ashing chamber is fixed with magnetron.
5. sample pre-treatments cineration device according to claim 4, is characterized in that, is provided with the lifting tray for the assembling of ashing vessel in described ashing chamber.
6. sample pre-treatments cineration device according to claim 4, is characterized in that, sample pre-treatments also has shell with cineration device, and described ashing chamber is fixing in the enclosure, and described ashing chamber has leakproof door body.
7. according to the sample pre-treatments cineration device described in claim 1 to 6 any one, it is characterized in that, on described air inlet pipeline, gas admittance valve is housed, described outlet pipe is provided with vaccum-pumping equipment.
8. according to the sample pre-treatments cineration device described in claim 1 to 6 any one, it is characterized in that, described outlet pipe is provided with on blower fan and/or described air inlet pipeline and is provided with air compressor machine.
9. sample pre-treatments cineration device according to claim 8, is characterized in that, is provided with solenoid valve and gas flow regulating valve on described air inlet pipeline.
10. according to the sample pre-treatments cineration device described in claim 1 to 6 any one, it is characterized in that also having thermal detector in described ashing vessel, described thermal detector is arranged in air inlet pipeline, or on described ashing vessel, offer thermometer hole, described thermal detector is through described thermometer hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320708864.XU CN203551369U (en) | 2013-11-12 | 2013-11-12 | Ashing device applicable to sample pretreatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320708864.XU CN203551369U (en) | 2013-11-12 | 2013-11-12 | Ashing device applicable to sample pretreatment |
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| Publication Number | Publication Date |
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| CN203551369U true CN203551369U (en) | 2014-04-16 |
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| CN201320708864.XU Expired - Fee Related CN203551369U (en) | 2013-11-12 | 2013-11-12 | Ashing device applicable to sample pretreatment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198252A (en) * | 2014-09-15 | 2014-12-10 | 西安西北有色地质研究院有限公司 | Automatic sample ashing pretreatment method for organic matter sample component analysis |
-
2013
- 2013-11-12 CN CN201320708864.XU patent/CN203551369U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198252A (en) * | 2014-09-15 | 2014-12-10 | 西安西北有色地质研究院有限公司 | Automatic sample ashing pretreatment method for organic matter sample component analysis |
| CN104198252B (en) * | 2014-09-15 | 2018-02-16 | 西安西北有色地质研究院有限公司 | Automation sample ashing pre-treating method for organic matter sample constituent analysis |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Huaiyin District of Ji'nan City, Shandong province 250117 ten West Road No. 145 Patentee after: SHANDONG NUCLEAR AND RADIATION SAFETY CENTER Patentee after: QINGDAO MAIKEWEI MICROWAVE INNOVATIVE TECHNOLOGY CO., LTD. Address before: Huaiyin District of Ji'nan City, Shandong province 250117 ten West Road No. 145 Patentee before: SHANDONG NUCLEAR AND RADIATION SAFETY CENTER Patentee before: Qingdao MKW Microwave Applied Technology Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20161112 |
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| CF01 | Termination of patent right due to non-payment of annual fee |