CN209771429U - Triallylamine filtration system - Google Patents
Triallylamine filtration system Download PDFInfo
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- CN209771429U CN209771429U CN201920543731.9U CN201920543731U CN209771429U CN 209771429 U CN209771429 U CN 209771429U CN 201920543731 U CN201920543731 U CN 201920543731U CN 209771429 U CN209771429 U CN 209771429U
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Abstract
The utility model relates to a triallylamine filtering system, which comprises a filter, a feed inlet at the upper end of the filter and a discharge outlet at the lower end of the filter, wherein the top of the filter is provided with a rotating spray head connected with the feed inlet; the filter is sequentially provided with a first-stage filter screen, a second-stage filter screen and a third-stage filter screen from top to bottom; correspondingly placing primary decolorizing sand, secondary decolorizing sand and tertiary decolorizing sand on each layer of filter screen; the filter screen divides the filter into three filter sections, and the top of every filter section sets up the decoloration sand and advances sand mouth, the bottom sets up decoloration sand outlet. The system effectively solves the problems that the decolorization flow path is increased, the utilization efficiency of the decolorization sand is improved, the filtration cost is reduced and the like under the conditions that the diameter of a filter is not increased and the use amount of the decolorization sand is less increased during the filtration of triallylamine.
Description
Technical Field
The utility model relates to a decoloration filter technical field specifically is a triallylamine filtration system.
Background
triallylamine (allyamine), a colorless liquid, with a strong ammoniacal and scorching smell. It can be used for preparing pharmaceutical intermediates, and intermediates for preparing agricultural chemicals, dyes, paints, organic synthesis and resin modifiers. It can also be used for preparing amphoteric high molecular polymer. The boiling point of the triallylamine is high-value organic amine, and the produced triallylamine product has a small amount of black impurities and yellowing and discoloring components due to the synthesis process technology; the color of the triallylamine product which is stored for a long time can also turn yellow and deepen.
The decolorizing sand is an adsorbent for adsorbing impurities and colors in liquid by a decolorizing and filtering method. The liquid becomes clear and bright after being filtered by the filter sand, and the sulfide in the liquid is removed, so that the product quality is improved, and the method is a preferred decoloration adsorption product in the market at present. Because the slag discharge is less, the cost is correspondingly reduced. Labor saving, time saving and labor saving, greatly improves the working rate, does not need temperature rise and pressurization, and is convenient and rapid to operate.
for the filtration of the triallylamine, the traditional method is to remove impurities by distillation, but the energy consumption of the distillation method is high; the other method is to filter by a solid decolorizing agent, a traditional filter is a single container added with decolorizing sand, the sand filling thickness is in direct proportion to the diameter of the container, and after one-time filtration, if the decolorizing effect is not good, better decolorizing sand needs to be replaced or the dosage of the decolorizing sand needs to be increased, so that the using efficiency of the decolorizing sand is low. In order to ensure that the liquid has good decoloring effect, the decoloring flow path of the liquid needs to be increased, so that the thickness of the decoloring sand needs to be increased, the diameter of the filter is also correspondingly increased, the using amount of the decoloring sand is also greatly increased, and the decoloring cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's not enough, provide one kind and improve decoloration efficiency, increase the mobile distance of decoloration, decoloration sand quantity increases and lacks, improves decoloration sand availability factor, reduces the filtration system of filtering cost.
The utility model is realized by the following technical proposal, the utility model provides a triallylamine filtering system, which comprises a filter, a feed inlet at the upper end of the filter and a discharge outlet at the lower end of the filter, wherein a rotary spray head connected with the feed inlet is arranged above the interior of the filter; the filter is sequentially provided with a first-stage filter screen, a second-stage filter screen and a third-stage filter screen from top to bottom; correspondingly placing primary decolorizing sand, secondary decolorizing sand and tertiary decolorizing sand on each layer of filter screen; the filter screen divides the filter into three filter sections, and the top of every filter section sets up the decoloration sand and advances sand mouth, the bottom sets up decoloration sand outlet.
the rotating spray head can prevent the decolored sand from being locally washed away to form pipe leakage due to too high speed in feeding, and can uniformly spray materials to ensure that the decolored sand positioned on the edge of the filter can be fully used. When the decolored sand cannot be used continuously (namely, the color of the triallylamine which cannot be decolored any more or is removed is almost the same as that of the original product), sand replacement is carried out from the sand inlet and the sand outlet. When the sand is changed, the decolorized sand with the lowest surface less than about one centimeter can be reserved to prevent the decolorized sand from leaking, and the use effect is not influenced. When the decolored sand residue generated by long-term use is treated, the filter screen needs to be cleaned, cleaning water can be pressurized, the cleaning water is introduced into the feed inlet, the filter screen is washed by rotating the spray head, and the cleaned sewage is released from the discharge valve.
The filter screen is stainless steel, the diameter with the filter internal diameter is unanimous. The mesh number of each layer of the filter screen increases from top to bottom layer by layer. The mesh number of the first-stage filter screen is 180-200 meshes, the mesh number of the second-stage filter screen is 200-220 meshes, and the mesh number of the third-stage filter screen is 220-240 meshes.
The mesh number of the decolorizing sand is gradually increased from the upper layer to the lower layer. The mesh number of the decolorized sand is 30-100 meshes. The decolorization rate of the decolorized sand is gradually increased from the upper layer to the lower layer. The decoloring rate of the primary decolored sand is 80-90%, the decoloring rate of the secondary decolored sand is 90-95%, and the decoloring rate of the tertiary decolored sand is 95-98%. The price of the currently marketed decolorizing sand is in direct proportion to the mesh number and the decolorizing rate of the decolorizing sand, the higher the mesh number is, the higher the decolorizing rate is, the more expensive the price of the decolorizing sand is, the commonly used decolorizing sand is silica gel decolorizing sand, and the price difference between the decolorizing sands can reach 4-5 times at most. Placing the decolorized sand with smaller mesh number and lower decolorization rate on the upper layer of the primary filter screen, and performing coarse filtration to mainly filter out impurities with larger particle size in the triallylamine; placing the decolorized sand with larger mesh number and higher decolorization rate on a secondary filter screen, and filtering out impurities with medium particle size; the three-stage filter screen is used for filtering out fine impurities from the decolorized sand with large mesh number and best decolorization efficiency; the transparency of the decolorized liquid also increases layer by layer. The dosage of each layer of the decolorizing sand can be adjusted or the material of each layer of the decolorizing sand can be adjusted according to the filtering effect and the size and the type of the particle size of impurities contained in the solution, so that the material of each layer of the decolorizing sand is different, the service efficiency of the decolorizing sand is maximized, and the decolorizing cost is reduced; meanwhile, compared with the method of simply using the large-mesh decolorizing sand, the method also avoids the condition that impurities with large particle size are accumulated in the large-mesh decolorizing sand to influence filtration.
The mesh number of each layer of filter screen is larger than that of each layer of decolorizing sand, so that fine particles in each layer of decolorizing sand are prevented from being brought into the lower layer of decolorizing sand by triallylamine liquid or flowing out from a discharge port during filtration to become impurities in the filtered triallylamine product.
The sand filling thickness of the decolorized sand is 1-1.5 times of the diameter of the filter. Under normal pressure, the thickness of the decolorizing sand is 1-1.5 times of the diameter of the filter. If the decolorization flow path is increased, the thickness of the decolorized sand is increased, and the diameter of a corresponding filter is increased; the diameter of the filter is not increased, the thickness of the decolorized sand is only increased, and the solution is difficult to permeate during filtration, so that the filtration is influenced, and even the filtration cannot be carried out. Therefore, when the decoloring flow path is increased to improve the decoloring effect in the prior art, the diameter of the filter needs to be increased, so that the amount of the decoloring sand is increased by a square multiple, and the decoloring cost is greatly increased. And the utility model discloses divide into three fillter section with the filter, decoloration sand thickness in every fillter section is 1 ~ 1.5 times of filter diameter. While ensuring the permeation effect, the decolorizing flow path is increased, and the diameter of the filter is not required to be increased. Compared with the prior art, the same decolorization flow path greatly reduces the consumption of decolorized sand and lowers the decolorization cost.
The feed inlet and the discharge outlet are both provided with valves.
The utility model has the advantages that:
1. under the condition of not increasing the diameter of the filter, the decoloring flow path can be increased, and the decoloring effect is improved.
2. Can prevent the decolored sand from being locally washed away to form 'pipe leakage' due to too high speed during feeding, and can fully use the decolored sand.
3. The dosage and the mesh number of each layer of decolorizing sand can be adjusted according to the decolorizing effect, the service efficiency of the decolorizing sand is improved, and the decolorizing cost is reduced.
4. The filter has small volume, small floor area and low manufacturing cost.
Drawings
FIG. 1 is a schematic structural view of the present invention;
Shown in the figure:
1. The device comprises a feed inlet, 2, a feed inlet valve, 3, a rotary spray head, 4, a sand inlet, 5, a sand outlet, 6, first-stage decolorizing sand, 7, second-stage decolorizing sand, 8, third-stage decolorizing sand, 9, a first-stage filter screen, 10, a second-stage filter screen, 11, a third-stage filter screen, 12, a discharge outlet valve, 13 and a discharge outlet.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by specific examples and comparative examples.
example (b):
As shown in fig. 1, the present invention provides a triallylamine filtration system: the filter comprises a filter, a feed inlet (1) at the upper end of the filter and a discharge outlet (2) at the lower end of the filter, wherein a rotary spray head (3) connected with the feed inlet is arranged above the interior of the filter; the filter is sequentially provided with a primary filter screen (9), a secondary filter screen (10) and a tertiary filter screen (11) from top to bottom; the primary decolorizing sand (6), the secondary decolorizing sand (7) and the tertiary decolorizing sand (8) are correspondingly placed on each layer of filter screen; the filter is divided into three filter sections by the filter screen, a desalinized sand inlet (4) is arranged above each filter section, and a desalinized sand outlet (5) is arranged at the bottom of each filter section; the feed inlet is provided with a feed valve (2); the discharge hole is provided with a discharge valve (12).
silica gel decolorizing sand is selected as the decolorizing sand, and the specific parameters are as follows:
Primary decolorized sand (6): 30-60 meshes, the decolorization rate is 80%, the sand filling thickness is 1.5 times of the diameter of the filter, and the market price is 1500 yuan/ton;
Secondary decolorized sand (7): 50-80 meshes, the decolorization rate is 90%, the sand filling thickness is 1.5 times of the diameter of the filter, and the market price is 3000 yuan/ton;
Third-stage decolorized sand (8): 70-100 meshes, the decolorization rate is 98%, the sand filling thickness is 1.5 times of the diameter of the filter, and the market price is 4500 yuan/ton.
The filter screen chooses the stainless steel filter screen for use, and specific parameter is:
A first-stage filter screen (9): 180 mesh, secondary filter screen (10): 210 mesh, tertiary filter screen (11): 240 meshes.
Filtering the objects: quality of triallylamine: 50Kg (1 barrel)
The method comprises the following operation steps: triallylamine enters a feed inlet (1), a feed inlet valve (,2) is opened, triallylamine is uniformly sprayed on primary decolorized sand (6) by rotating a spray head (3), and then is filtered by a primary filter screen (9), secondary decolorized sand (7), a secondary filter screen (10), tertiary decolorized sand (8) and a tertiary filter screen (11) in sequence, and finally, a discharge outlet valve (12) is opened to take out the filtered triallylamine A from a discharge outlet (13).
comparative example 1
The filter diameter was three times the diameter of the filter used in the examples;
The thickness of the sand filled in the filter is 1.5 times of the diameter of the filter, and the thickness of the sand filled in the filter is the second-level decolorizing sand used in the embodiment;
The filter screen is a secondary filter screen used in the embodiment.
filtering the objects: quality of triallylamine: 50Kg (1 barrel)
The method comprises the following operation steps: and opening a valve at the feed port of the first filter, filtering triallylamine step by step through three filters connected in series, and opening a valve at the discharge port of the third filter to take out the filtered triallylamine B from the discharge port.
Comparative example 2
The filter diameter was three times the diameter of the filter used in the examples;
The thickness of the sand filled in the filter is 1.5 times of the diameter of the filter;
The filter screen is a three-stage filter screen used in the embodiment.
Filtering the objects: quality of triallylamine: 50Kg (1 barrel)
the method comprises the following operation steps: and opening a valve at the feed port of the filter, filtering the triallylamine through the filter, opening a valve at the discharge port of the filter, and taking out the filtered triallylamine C from the discharge port.
comparative example 3
the filter diameter was three times the diameter of the filter used in the examples;
The decolorizing sand is stacked in three decolorizing sand layers used in the embodiment, and the sand filling thickness of each decolorizing sand layer is 1.5 times of the diameter of the filter;
The filter screen is a three-stage filter screen used in the embodiment.
Filtering the objects: quality of triallylamine: 50Kg (1 barrel)
The method comprises the following operation steps: and opening a valve at the feed port of the filter, filtering the triallylamine through three types of decolorizing sand, opening a valve at the discharge port of the filter, and taking out the filtered triallylamine D from the discharge port.
Test example 1
Transparency test: transparency detection was performed on triallylamine a, triallylamine B, triallylamine C, and triallylamine D obtained by filtration in example 1, comparative example 2, and comparative example 3 using a transparency detector. The results are shown in Table 2.
Table 2 comparison of transparency test results
| Light transmittance | Examples | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| ％ | 93.0 | 85.3 | 93.6 | 89.1 |
As can be seen from table 2, the transparency of triallylamine a obtained by filtration using example is significantly higher than that of triallylamine B obtained by filtration using comparative example 1 and comparative example 3; the transparency of the example and the comparative example 2 are not substantially different; however, the total amount of the decolorized sand used in the examples and the cost are much lower than those in comparative examples 1, 2 and 3.
Test example 2
Impurity particle statistical test: counting the number of impurity particles of triallylamine A, triallylamine B, triallylamine C and triallylamine D obtained by filtering in example 1, comparative example 1 and comparative example 3 by using a liquid particle counter. The results are shown in Table 3.
TABLE 3 comparison of statistical test results for impurities
As can be seen from table 3, the amount of impurities of triallylamine a obtained by filtration using example was significantly lower than that of triallylamine B and C obtained by filtration using comparative example 1 and comparative example 3; the impurity amount of the example is substantially the same as that of comparative example 2; however, the total amount of the decolorizing sand used and the cost of example 3 are much lower than those of comparative examples 1, 2 and 3.
From the above tests it can be seen that: compared with the embodiment, if the decoloring effect is improved and the flow path is increased, the thickness of the decoloring sand needs to be increased, and accordingly, the diameter of the filter is increased proportionally. The sand loading of the comparative examples 1 and 3 is 9 times of that of the examples, the cost is far higher than that of the examples, and the filtering effect is still lower than that of the examples. The filtration effect of the example is not substantially different from that of the example 2, but the sand loading of the comparative example 2 is 9 times that of the example and the cost is much higher than that of the example. The volume of the filter used in comparative examples 1, 2 and 3 is much larger than that of the filter used in the examples, and the manufacturing cost is correspondingly increased. Therefore, the novel triallylamine filtering system can increase the decolorization flow path, improve the decolorization effect and the utilization efficiency of the decolorization sand and reduce the decolorization cost under the conditions that the diameter of the filter is not increased and the using amount of the decolorization sand is less increased.
of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.
Claims (10)
1. A triallylamine filtration system, includes the filter and the feed inlet of filter upper end and the discharge gate of lower extreme, its characterized in that: the top of the filter is provided with a rotary spray head connected with the feed inlet; the filter is sequentially provided with a first-stage filter screen, a second-stage filter screen and a third-stage filter screen from top to bottom; correspondingly placing primary decolorizing sand, secondary decolorizing sand and tertiary decolorizing sand on each layer of filter screen; the filter screen divides the filter into three filter sections, and the top of every filter section sets up the decoloration sand and advances sand mouth, the bottom sets up decoloration sand outlet.
2. the filtration system of claim 1, wherein the filter screen is made of stainless steel and has a diameter corresponding to the inner diameter of the filter.
3. The filtering system according to claim 1, wherein the mesh number of each layer of the filtering net increases from top to bottom layer by layer.
4. A filtration system according to claim 3, wherein: the mesh number of the primary filter screen is 180-200 meshes; the mesh number of the secondary filter screen is 200-220 meshes; the mesh number of the third-stage filter screen is 220-240 meshes.
5. The filtration system of claim 1, wherein: the mesh number of the decolorizing sand is gradually increased from the upper layer to the lower layer.
6. The filtration system of claim 5, wherein: the mesh number of the decolorized sand is 30-100 meshes.
7. The filtration system of claim 1, wherein: the decolorization rate of the decolorized sand is gradually increased from the upper layer to the lower layer.
8. The filtration system of claim 7, wherein: the decoloring rate of the primary decolored sand is 80-90%, the decoloring rate of the secondary decolored sand is 90-95%, and the decoloring rate of the tertiary decolored sand is 95-98%.
9. the filtration system of claim 1, wherein: the sand filling thickness of the decolorized sand is 1-1.5 times of the diameter of the filter.
10. The filtration system of claim 1, wherein: the feeding port is provided with a feeding valve; the discharge hole is provided with a discharge valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920543731.9U CN209771429U (en) | 2019-04-19 | 2019-04-19 | Triallylamine filtration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920543731.9U CN209771429U (en) | 2019-04-19 | 2019-04-19 | Triallylamine filtration system |
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| Publication Number | Publication Date |
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| CN209771429U true CN209771429U (en) | 2019-12-13 |
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|---|---|---|---|
| CN201920543731.9U Active CN209771429U (en) | 2019-04-19 | 2019-04-19 | Triallylamine filtration system |
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| CN (1) | CN209771429U (en) |
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