CN211206387U - Classification device for narrow distribution of gradient elution method - Google Patents
Classification device for narrow distribution of gradient elution method Download PDFInfo
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- CN211206387U CN211206387U CN201922292667.4U CN201922292667U CN211206387U CN 211206387 U CN211206387 U CN 211206387U CN 201922292667 U CN201922292667 U CN 201922292667U CN 211206387 U CN211206387 U CN 211206387U
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Abstract
The utility model belongs to the technical field of graded dissolution and precipitation, in particular to a graded device with narrow distribution by a gradient leaching method, which comprises a shell, wherein a transfusion system, a sample introduction system and a fraction collection system are arranged on one side of the shell from top to bottom, a cylindrical constant temperature box with a cavity is arranged on the other side of the shell, a temperature adjusting device is arranged on the lower part of the constant temperature box, and a bracket for placing a graded column is arranged on the inner wall of the constant temperature box; by adopting the grading device with the structure, the grading column is arranged in the constant temperature box, and the temperature field distribution in the constant temperature box can be well controlled through the temperature adjusting device, so that the defect of unbalanced temperature field distribution in the conventional steep leaching device is overcome, the grading efficiency can be greatly improved, and the grading efficiency is very high.
Description
Technical Field
The utility model belongs to the technical field of dissolve in grades and deposit, concretely relates to narrow distribution grading plant of steepness drip washing method.
Background
The gradient elution method is to add a solvent gradient and a temperature gradient on the basis of the dissolution fractionation method on a column so that the dissolving capacity of a mixed solvent for a polymer gradually increases in some way, and the temperature of the fractionation column linearly decreases from the top to the bottom. Thus, the polymer is dissolved by the mixed solvent at the top of the fractionation column, and the temperature is gradually lowered as the solvent flows from the top to the bottom, so that the polymer is precipitated from the mixed solvent. Subsequently, the polymer is redissolved by the mixture with a stronger dissolving power. When the dissolved polymer enters the lower temperature region, it precipitates again. The said process is repeated for several times to reach the balance of dissolving and precipitating, and the grading is in multidimensional horizontal state, and this can raise grading efficiency greatly.
However, the constant-temperature cooling and ventilating effect of the existing gradient leaching device is poor, and the existing devices are relatively loose, are easy to be disordered when in use, are inconvenient to move and occupy large space.
Therefore, how to overcome the above-mentioned drawbacks, it is one of the problems to be solved in the art to provide a gradient elution method narrow distribution grading device with more balanced temperature field control.
Disclosure of Invention
The utility model provides a grading device with narrow distribution by gradient elution method aiming at the defects in the prior art, which comprises a shell, wherein a transfusion system, a sample introduction system and a fraction collection system are arranged on one side of the shell from top to bottom, a cylindrical constant temperature box with a cavity is arranged on the other side of the shell, a temperature adjusting device is arranged on the lower part of the constant temperature box, and a bracket for placing a grading column is arranged on the inner wall of the constant temperature box; by adopting the grading device with the structure, the grading column is arranged in the constant temperature box, and the temperature field distribution in the constant temperature box can be well controlled through the temperature adjusting device, so that the defect of unbalanced temperature field distribution in the conventional steep leaching device is overcome, the grading efficiency can be greatly improved, and the grading efficiency is very high.
The utility model discloses a concrete technical scheme is:
a narrow distribution grading device for a gradient leaching method comprises a shell, wherein a transfusion system, a sample introduction system, a fraction collection system and a refrigeration assembly are arranged on one side of the shell from top to bottom, a cylindrical constant temperature box with a cavity is arranged on the other side of the shell, a temperature adjusting device is arranged at the lower part of the constant temperature box, and a support for placing a grading column is arranged on the wall of the cavity in the constant temperature box;
a vertical partition plate is arranged in the middle of the shell to vertically divide the shell into two parts, three layers of partition plates are arranged in the shell on the left side, and a transfusion system and a sample injection system are arranged on the partition plate on the uppermost layer; a fraction collecting system is arranged on the middle layer clapboard; a refrigeration assembly is arranged on the lowest layer of partition board; the top of the right side shell is provided with a control component for controlling the operation of the whole device, and a conventional control device of the existing gradient leaching device can be adopted; a cylindrical thermostat is arranged in the shell below the control assembly, a cavity wall in the thermostat is provided with at least two supports for placing the grading columns, and the vertical direction of the supports is vertical to the supports; the top of the thermostatic box is provided with an opening, the bottom of the thermostatic box is connected with a temperature adjusting device, the temperature adjusting device consists of a coil pipe and a fan, the coil pipe is arranged above the fan, and the coil pipe is connected with a refrigerating unit through a heat preservation pipeline; the constant temperature box is fixedly connected with the vertical partition plate through a support frame connected to the side wall;
the infusion system and the sample introduction system both adopt systems the same as the existing gradient leaching method device, and the system specifically comprises the following steps:
the infusion system comprises a delivery pump, a degasser, a mixer, a liquid storage bottle and a pipeline, wherein the delivery pump, the degasser, the mixer, the liquid storage bottle and the pipeline are all electrically connected with a control assembly, two infusion pumps are used for carrying out solvent gradient control, a solvent and a non-solvent are injected into a mixing chamber according to a certain flow rate, the solvent and the non-solvent are pumped into the mixer after bubbles are removed by the degasser, the solvent is uniformly mixed, and the solvent enters a classification column to be eluted. The solvent gradient is controlled by the control component, so that any form of solvent gradient can be obtained, and automatic control is realized; the sample introduction system is connected with a discharge pipeline of the infusion system, the sample introduction system adopts a six-way valve sample injector and comprises a rotor and a stator, the rotor is a circular sealing gasket, the stator is a fixed base, a sample is injected into a quantitative ring from a sample inlet hole through a sample introduction needle at a sampling position, after the quantitative ring is filled, redundant samples are discharged from an emptying hole, when a handle is rotated to the sample introduction position, a valve is communicated with the discharge pipeline of the infusion system, a mobile phase conveyed by a conveying pump enters and cleans the quantitative ring, a solvent and the sample are conveyed into a grading column together, and different solvents are continuously conveyed into the grading column in the subsequent leaching process;
wherein, after a discharge pipeline of the transfusion system is connected with the quantitative ring, the liquid enters the constant temperature box from the opening at the top of the constant temperature box through a conveying pipeline and is connected with an inlet of the grading column;
the fraction collection system comprises an online viscosity detector and a fraction collector, the online viscosity detector and the fraction collector are electrically connected with the control assembly, the viscosity change of the fraction is monitored in real time by adopting an online viscosity detection method, the collection of the classified components is carried out by adopting a full-automatic fraction collector, specifically, an X L type online viscometer is used for monitoring, and a BSZ-30 type full-automatic fraction collector is used;
fractions are collected by setting a certain time interval, automatic fraction collection is realized by microcomputer control, and collection programs can be set arbitrarily for the number of fractions, the collection time and the like; an X-Y moving mode is used, the collection positions are controlled with high precision, 30 collection interfaces are adopted, an external collection container is adopted, and the collection amount is not limited; the fraction collector is connected with a solvent collecting port of the fractionating column;
the cylindrical constant temperature box consists of an outer shell, a heat preservation layer, a heating layer and an inner lining layer which are arranged inside and outside the constant temperature box respectively, wherein the heating layer adopts an electric heating mode and provides a stable heat source for the constant temperature box;
the refrigeration assembly adopts a conventional compressor, the compressor sends a refrigerant into a coil pipe of the temperature adjusting device through a heat insulation pipeline, and cold air around the coil pipe is blown upwards into the cylindrical constant temperature box under the action of the fan, so that a heat source is provided through the heating layer, a cold source is provided through the coil pipe, the upward cold air blown out by the fan realizes a temperature field which is gradually cooled from top to bottom in the cylindrical constant temperature box, the temperature field obtained by matching the two is more stable, and the temperature range of the temperature field can be adjusted through the control assembly, so that accurate temperature control is realized; the top cover is arranged at the opening at the top of the cylindrical constant temperature box, the top cover is used for covering the top of the cylindrical constant temperature box when in use, but a gap is arranged on the top cover for facilitating the entering of the liquid inlet pipe, and meanwhile, the gap can also lead out the wind in the cylindrical constant temperature box, so that the problem of unsmooth gas circulation caused by the formation of a completely closed space is avoided;
the cylindrical constant temperature box consists of two semi-cylindrical parts, the rear sides of the two parts are connected through a hinge, the front ends of the two parts are connected through a lock catch, when the device is used, only the lock catch needs to be opened, the grading column is placed in the support, the related pipelines are connected together, the cylindrical constant temperature box is closed and then locked by the lock catch, and then the subsequent operation can be started, the specific leaching process is the same as that in the prior art, and the inventor does not need to describe any more;
when the device is used specifically, firstly, the classification column is placed on a support of a cylindrical constant temperature box, then a liquid inlet pipeline and a liquid outlet pipeline are correspondingly connected with the classification column, then the cylindrical constant temperature box is closed and locked, after the top cover is well arranged, a heating layer is controlled to start heating through a control assembly, when the temperature in the cylindrical constant temperature box reaches a preset temperature, a refrigerating assembly is started, the refrigerating assembly sends a refrigerant into a coil pipe, at the moment, a fan is started to inject cold air from the bottom of the cylindrical constant temperature box, a temperature field in the cylindrical constant temperature box is adjusted, when a preset temperature gradient is reached, a sample inlet i and a liquid infusion device can start to feed liquid into the classification column, and meanwhile, a fraction collection system is started to collect different fractions;
the control assembly is also connected with a temperature detection device, and temperature measurement units of the temperature detection device are arranged at different positions of the inner wall of the cylindrical constant temperature box, so that the temperature distribution in the cylindrical constant temperature box can be mastered in real time, and conditions are carried out on a heating layer, a refrigeration unit and the rotating speed of a fan through a program, so that the temperature gradient is ensured to reach the preset value;
the sample introduction system, the transfusion system and the fraction collection system are all controlled by the control assembly and are directly realized in the prior art, and the inventor does not give any further details; the cabinet door is arranged in front of the shell, so that the maintenance and replacement of each component can be facilitated;
to sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
the whole device is divided into two parts by the action of the shell and the vertical partition plate, the two parts are separated by the vertical partition plate and do not affect each other when working mutually, and the positions in the shells of the sample injection system, the infusion system and the fraction collection system are reasonably set according to the placement positions of the grading columns in the cylindrical constant temperature box, so that the subsequent operation and maintenance are facilitated; the refrigeration assembly is arranged independently and separated from the cylindrical constant temperature box through the vertical partition plate, so that the influence of heat generated by the refrigeration assembly on the cylindrical constant temperature box is avoided, and the temperature control precision is obviously improved; compared with the prior art, the whole device has the advantages that the occupied area is reduced, the whole device can be conveniently moved in a mode of mounting universal wheels at the bottom of the shell, and the use convenience of the device is improved; meanwhile, through the matching of the heating layer and the refrigerating assembly, the accurate control of the temperature gradient is realized, and the problem that the temperature gradient is difficult to control due to unsmooth ventilation in the prior art is solved.
Drawings
FIG. 1 is a schematic structural diagram of a gradient elution-method narrow-distribution grading device of the present invention;
FIG. 2 is a front view of the steepness leaching narrow distribution classifier of the present invention;
FIG. 3 is a schematic cross-sectional view of the structure of a cylindrical incubator;
FIG. 4 is a schematic view of the external structure of a cylindrical incubator;
in the figure, 1 is a shell, 2 is a transfusion system and a sample introduction system, 3 is a fraction collection system, 4 is a refrigeration component, 5 is a temperature regulation device, 6 is a cylindrical thermostat, 7 is a vertical partition plate, 8 is a control component, 9 is a support, 10 is a shell, 11 is a heat preservation layer, 12 is a heating layer, 13 is an inner liner layer, 14 is a coil pipe, 15 is a fan, 16 is a support frame, 17 is a top cover, and 18 is a lock catch.
Detailed Description
The present invention is further illustrated below with reference to examples, which will enable those skilled in the art to more fully understand the present invention, but which are not intended to limit the invention in any way;
a narrow distribution grading device of a gradient leaching method comprises a shell 1, wherein a transfusion system, a sample introduction system 2, a fraction collection system 3 and a refrigeration assembly 4 are arranged on one side of the shell 1 from top to bottom, a cylindrical thermostat 6 with a cavity is arranged on the other side of the shell, a temperature adjusting device 5 is arranged at the lower part of the thermostat 6, and a support 9 for placing a grading column is arranged on the wall of the cavity in the thermostat 6;
a vertical partition plate 7 is arranged in the middle of the shell 1 to vertically divide the shell 1 into two parts, three layers of partition plates are arranged in the shell on the left side, and a transfusion system and a sample introduction system 2 are arranged on the partition plate on the uppermost layer; a fraction collecting system 3 is arranged on the middle layer clapboard; a refrigeration component 4 is arranged on the lowest layer of partition board; the top of the right side shell is provided with a control component 8 for controlling the operation of the whole device, and a conventional control device of the existing gradient leaching device can be adopted; a cylindrical thermostat 6 is arranged in the shell below the control assembly 8, a cavity wall in the thermostat 6 is provided with at least two supports 9 for placing grading columns, and the vertical direction of the supports 9 is provided with the at least two supports; the top of the constant temperature box 6 is provided with an opening, the bottom of the constant temperature box 6 is connected with a temperature adjusting device 5, the temperature adjusting device 5 consists of a coil 14 and a fan 15, the coil 14 is arranged above the fan 15, and the coil 14 is connected with the refrigerating unit 4 through a heat insulation pipeline; the constant temperature box 6 is fixedly connected with the vertical partition plate 7 through a support frame 16 connected to the side wall;
the cylindrical constant temperature box 6 consists of an outer shell 10, a heat preservation layer 11, a heating layer 12 and an inner lining layer 13 which are arranged inside and outside, wherein the heating layer 12 adopts an electric heating mode to provide a stable heat source for the constant temperature box; furthermore, the cylindrical incubator 6 is composed of two semi-cylindrical parts, the rear sides of the two parts are connected through a hinge, the front ends of the two parts are connected through a lock catch 18, when in use, only the lock catch needs to be opened, the grading column is placed in the bracket, the related pipelines are connected together, the cylindrical incubator is closed and then locked by the lock catch, the subsequent operation can be started, the specific leaching process is the same as that in the prior art,
the refrigeration assembly adopts a conventional compressor, the compressor sends a refrigerant into a coil pipe of the temperature adjusting device through a heat insulation pipeline, and cold air around the coil pipe is blown upwards into the cylindrical constant temperature box under the action of the fan, so that a heat source is provided through the heating layer, a cold source is provided through the coil pipe, the upward cold air blown out by the fan realizes a temperature field which is gradually cooled from top to bottom in the cylindrical constant temperature box, the temperature field obtained by matching the two is more stable, and the temperature range of the temperature field can be adjusted through the control assembly, so that accurate temperature control is realized;
the top cover 17 is arranged at the opening at the top of the cylindrical constant temperature box 6, when the air conditioner is used, the top cover 17 is used for covering the top of the cylindrical constant temperature box 6, but a gap is formed in the top cover 17 to facilitate the entering of a liquid inlet pipe, and meanwhile, the gap can also guide out wind in the cylindrical constant temperature box, so that the problem that the air circulation is not smooth due to the formation of a completely closed space is avoided;
the infusion system and the sample introduction system both adopt systems the same as the existing gradient leaching method device, and the system specifically comprises the following steps:
the infusion system comprises a delivery pump, a degasser, a mixer, a liquid storage bottle and a pipeline, wherein the delivery pump, the degasser, the mixer, the liquid storage bottle and the pipeline are all electrically connected with a control assembly, two infusion pumps are used for carrying out solvent gradient control, a solvent and a non-solvent are injected into a mixing chamber according to a certain flow rate, the solvent and the non-solvent are pumped into the mixer after bubbles are removed by the degasser, the solvent is uniformly mixed, and the solvent enters a classification column to be eluted. The solvent gradient is controlled by the control component, so that any form of solvent gradient can be obtained, and automatic control is realized; the sample introduction system is connected with a discharge pipeline of the infusion system, the sample introduction system adopts a six-way valve sample injector and comprises a rotor and a stator, the rotor is a circular sealing gasket, the stator is a fixed base, a sample is injected into a quantitative ring from a sample inlet hole through a sample introduction needle at a sampling position, after the quantitative ring is filled, redundant samples are discharged from an emptying hole, when a handle is rotated to the sample introduction position, a valve is communicated with the discharge pipeline of the infusion system, a mobile phase conveyed by a conveying pump enters and cleans the quantitative ring, a solvent and the sample are conveyed into a grading column together, and different solvents are continuously conveyed into the grading column in the subsequent leaching process;
wherein, after a discharge pipeline of the transfusion system is connected with the quantitative ring, the liquid enters the constant temperature box from the opening at the top of the constant temperature box through a conveying pipeline and is connected with an inlet of the grading column;
the fraction collection system comprises an online viscosity detector and a fraction collector, the online viscosity detector and the fraction collector are electrically connected with the control assembly, the viscosity change of the fraction is monitored in real time by adopting an online viscosity detection method, the collection of the classified components is carried out by adopting a full-automatic fraction collector, specifically, an X L type online viscometer is used for monitoring, and a BSZ-30 type full-automatic fraction collector is used;
fractions are collected by setting a certain time interval, automatic fraction collection is realized by microcomputer control, and collection programs can be set arbitrarily for the number of fractions, the collection time and the like; an X-Y moving mode is used, the collection positions are controlled with high precision, 30 collection interfaces are adopted, an external collection container is adopted, and the collection amount is not limited; the fraction collector is connected with a solvent collecting port of the fractionating column;
when the device is used specifically, firstly, the classification column is placed on a support of a cylindrical constant temperature box, then a liquid inlet pipeline and a liquid outlet pipeline are correspondingly connected with the classification column, then the cylindrical constant temperature box is closed and locked, after the top cover is well arranged, a heating layer is controlled to start heating through a control assembly, when the temperature in the cylindrical constant temperature box reaches a preset temperature, a refrigerating assembly is started, the refrigerating assembly sends a refrigerant into a coil pipe, at the moment, a fan is started to inject cold air from the bottom of the cylindrical constant temperature box, a temperature field in the cylindrical constant temperature box is adjusted, when a preset temperature gradient is reached, a sample inlet i and a liquid infusion device can start to feed liquid into the classification column, and meanwhile, a fraction collection system is started to collect different fractions;
the control assembly is also connected with a temperature detection device, and temperature measurement units of the temperature detection device are arranged at different positions of the inner wall of the cylindrical constant temperature box, so that the temperature distribution in the cylindrical constant temperature box can be mastered in real time, and conditions are carried out on a heating layer, a refrigeration unit and the rotating speed of a fan through a program, so that the temperature gradient is ensured to reach the preset value;
the sample introduction system, the transfusion system and the fraction collection system are all controlled by the control assembly and are directly realized in the prior art, and the inventor does not give any further details; the cabinet door is arranged in front of the shell, and the components can be conveniently maintained and replaced.
Claims (4)
1. A steepness leaching narrow distribution grading plant, which comprises a shell (1), and is characterized in that: a liquid conveying system, a sample introduction system (2), a fraction collecting system (3) and a refrigerating assembly (4) are arranged on one side of a shell (1) from top to bottom, a cylindrical thermostat (6) with a cavity is arranged on the other side of the shell, a temperature adjusting device (5) is arranged on the lower portion of the thermostat (6), and a support (9) used for placing a grading column is arranged on the wall of the cavity inside the thermostat (6).
2. The steepness elution method narrow distribution fractionation device of claim 1, wherein:
a vertical partition plate (7) is arranged in the middle of the shell (1), the shell (1) is vertically divided into two parts, three layers of partition plates are arranged in the shell on the left side, and a transfusion system and a sample injection system (2) are arranged on the partition plate on the uppermost layer; a fraction collecting system (3) is arranged on the middle layer clapboard; a refrigeration component (4) is arranged on the lowest layer of the clapboard; the top of the right side shell is provided with a control component (8); a cylindrical thermostat (6) is arranged in the shell below the control assembly (8), at least two supports (9) for placing grading columns are arranged on the cavity wall in the thermostat (6) in the vertical direction, an opening is formed in the top of the thermostat (6), a temperature adjusting device (5) is connected to the bottom of the thermostat (6), the temperature adjusting device (5) is composed of a coil (14) and a fan (15), the coil (14) is arranged above the fan (15), and the coil (14) is connected with the refrigerating assembly (4) through a heat insulation pipeline; the constant temperature box (6) is fixedly connected with the vertical partition plate (7) through a support frame (16) connected to the side wall.
3. The steepness elution method narrow distribution fractionation device of claim 1, wherein: the cylindrical constant temperature box (6) consists of an outer shell (10), a heat preservation layer (11), a heating layer (12) and an inner lining layer (13) which are arranged inside and outside, wherein the heating layer (12) adopts an electric heating mode;
the cylindrical constant temperature box (6) consists of two semi-cylindrical parts, the rear sides of the two parts are connected through a hinge, and the front ends of the two parts are connected through a lock catch (18); a top cover (17) is arranged at the opening at the top of the cylindrical constant temperature box (6).
4. The steepness elution method narrow distribution fractionation device of claim 3, wherein: the top cover (17) is provided with a notch.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922292667.4U CN211206387U (en) | 2019-12-18 | 2019-12-18 | Classification device for narrow distribution of gradient elution method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115343125A (en) * | 2022-08-08 | 2022-11-15 | 中国地质科学院矿产资源研究所 | Carbonate precipitation device and lithium carbonate isotope analysis method |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115343125A (en) * | 2022-08-08 | 2022-11-15 | 中国地质科学院矿产资源研究所 | Carbonate precipitation device and lithium carbonate isotope analysis method |
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