Equipment for purifying and decoloring 2, 6-dihydroxytoluene

Abstract

The utility model relates to the technical field of chemical raw material processing, in particular to 2, 6-dihydroxytoluene purifying and decoloring equipment which comprises a supporting vertical plate, a circulating dissolving assembly is arranged on the side face of the supporting vertical plate through a fixing piece and comprises an outer sleeve, a first filter plate is installed in an inner sleeve, a heating piece is arranged on the outer side of the inner sleeve, a first circulating pipe is installed below the water injection tank, and a tee joint is installed at the other end of the first circulating pipe; under the continuous operation of the circulating pump, a dissolving solution in the water injection tank is cyclically conveyed again and impacts on 2, 6-dihydroxytoluene coarse crystals on the first filter plate, the effect of improving the dissolving efficiency is achieved in a matched mode, the purifying and decolorizing processing speed is effectively improved, and the quality of the 2, 6-dihydroxytoluene coarse crystals is improved. And compared with traditional purification and decolorization equipment, the production efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical raw material processing, in particular to equipment for purifying and decolorizing 2,6-dihydroxytoluene. Background Art

[0002] 2,6-Dihydroxytoluene is a phenol compound with a wide range of uses. It can be used to synthesize porphyrin and porphine compounds. These compounds are widely used in polymer materials, molecular targeted drugs and chemical catalysis. In order to improve the quality of the finished product during the processing of 2,6-dihydroxytoluene, it is necessary to purify and decolorize 2,6-dihydroxytoluene.

[0003] A patent with announcement number CN 214913530 U discloses a device for purifying and decolorizing 2,6-dihydroxytoluene, including: a dissolving tank, the dissolving tank is a hollow barrel structure, the central axis of the threaded cover coincides with the central axis of the dissolving tank, the sealing ring is tightly fitted with the connection between the threaded cover and the dissolving tank, an opening is provided above the crystallization box, and after the plunger tube is filled with the dissolved solution, the hydraulic rod is started and extended, thereby pushing the plunger head to the right, thereby squeezing the solution from the plunger tube into the filter tube, and purifying and decolorizing through activated carbon and a filter screen, thereby achieving the effect of purification and decolorization processing and improving work efficiency.

[0004] However, the existing 2,6-dihydroxytoluene purification and decolorization equipment has complicated operation, slow purification and decolorization efficiency, and slow dissolution speed, which leads to slow processing speed and affects production efficiency. Therefore, a 2,6-dihydroxytoluene purification and decolorization equipment is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and to address the problems existing in the prior art, the utility model provides a device for purifying and decolorizing 2,6-dihydroxytoluene.

[0006] The technical solution adopted by the utility model to solve the technical problem is as follows: the 2,6-dihydroxytoluene purification and decolorization equipment described in the utility model comprises a supporting vertical plate; a circulating dissolution component is arranged on the side of the supporting vertical plate through a fixing piece, the circulating dissolution component comprises an outer sleeve, and the outer sleeve is installed on the side of the supporting vertical plate through a fixing piece, an inner sleeve is arranged through the outer sleeve, a No. 1 filter plate is installed in the inner sleeve, and a heating plate is arranged on the outer side of the inner sleeve;

[0007] A connecting pipe for connecting to a water injection tank is installed under the outer sleeve, a No. 1 circulation pipe is installed under the water injection tank, a circulation pump and a No. 1 valve are installed on the No. 1 circulation pipe, a tee is installed at the other end of the No. 1 circulation pipe, and a No. 2 circulation pipe is installed at one interface of the tee, the other end of the No. 2 circulation pipe is bent upward and arranged in the upper opening of the inner sleeve, a No. 2 circulation pipe is installed on the No. 2 valve, and a filling pipe is installed on the water injection tank;

[0008] A drain pipe is installed in the other interface of the tee installed at the end of the No. 1 circulation pipe, and a No. 3 valve is installed on the drain pipe. A filtering and cooling component is arranged at the other end of the drain pipe, which cooperates to achieve the effect of improving the dissolution efficiency, effectively improving the purification and decolorization processing speed, and has higher production efficiency than traditional purification and decolorization equipment.

[0009] Preferably, the heating plate is located in the outer sleeve, and a heating controller for controlling the heating plate is installed on the side of the supporting vertical plate, so as to achieve the function of controlling the heating and improve the dissolution efficiency.

[0010] Preferably, the end of the No. 2 circulation pipe is vertically arranged in the opening of the inner sleeve, and a sealing cover is slidably arranged on the vertical end of the No. 2 circulation pipe, and the sealing cover is threadedly connected in the upper opening of the inner sleeve, so as to achieve the sealing effect and improve the stability of use.

[0011] Preferably, the filtering cooling component includes a filtering bin, in which an activated carbon block and a No. 2 filter plate are arranged, a cooling pipe is installed on the side of the filtering bin opposite to the No. 3 valve, a cooling bin is installed on the cooling pipe, and the portion of the cooling pipe located in the cooling bin is bent in a serpentine shape, a liquid outlet is vertically arranged downward at the other end of the cooling pipe, and a refrigeration containing component is arranged on the side of the supporting vertical plate below the liquid outlet port, thereby achieving the effect of reducing processing time and improving production efficiency.

[0012] Preferably, the cooling bin is installed on the side of the supporting vertical plate through a fixing part, the activated carbon block is located on the side of the filter bin close to the No. 3 valve, and the activated carbon block and the No. 2 filter plate are arranged and sealed in the refrigeration module, and the effect of filtering and adsorption is achieved in cooperation to ensure the purification and decolorization effect.

[0013] Preferably, the refrigeration holding assembly includes a support plate, and the support plate is installed on the side of the supporting vertical plate, and a refrigeration plate is arranged on the support plate, and a cooling tank is placed on the refrigeration plate, which cooperates to achieve the effect of crystallization and ensure the normal use of the equipment.

[0014] Preferably, the cooling tank is located directly below the liquid outlet port, and a refrigeration module for controlling the refrigeration plate is installed under the support plate, thereby achieving the effect of controlling refrigeration.

[0015] The utility model is beneficial in that:

[0016] 1. When the circulation pump is running, the water in the water injection tank will be transported into the No. 2 circulation pipe through the No. 1 circulation pipe, and then poured into the inner sleeve through the No. 2 circulation pipe. Under the continuous operation of the circulation pump, the dissolved liquid in the water injection tank will be recirculated and transported to impact the 2,6-dihydroxytoluene coarse crystals on the No. 1 filter plate. The heated dissolved liquid will accelerate the dissolution rate of the 2,6-dihydroxytoluene coarse crystals. After the dissolution is completed, the No. 3 valve will be opened and the No. 2 valve will be closed. The 2,6-dihydroxytoluene dissolved liquid can be filtered and cooled by the filtering and cooling component for purification and decolorization. The coordination achieves the effect of improving the dissolution efficiency, effectively improving the purification and decolorization processing speed, and having higher production efficiency than traditional purification and decolorization equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 is a schematic diagram of a first three-dimensional structure;

[0019] Figure 2 This is an enlarged schematic diagram of the main structure of the circulation dissolution component;

[0020] Figure 3 It is a cutaway enlarged schematic diagram of the heating main structure;

[0021] Figure 4 This is an enlarged schematic diagram of the main structure of filter plate No. 1;

[0022] Figure 5 It is a schematic diagram of the enlarged cutaway of the main structure of the cooling component;

[0023] Figure 6 It is a cutaway and enlarged schematic diagram of the main structure of the filtration and adsorption component;

[0024] Figure 7 This is an enlarged schematic diagram of the cutaway main structure of the refrigeration crystallization component.

[0025] In the figure: 1. Support vertical plate; 2. Circulation dissolution component; 3. Outer sleeve; 4. Inner sleeve; 5. Filter plate No. 1; 6. Heating plate; 7. Heating controller; 8. Connecting pipe; 9. Water injection tank; 10. Circulation pipe No. 1; 11. Circulation pump; 12. Valve No. 1; 13. Circulation pipe No. 2; 14. Sealing cover; 15. Filling pipe; 16. Valve No. 2; 17. Drain pipe; 18. Filter chamber; 19. Valve No. 3; 20. Activated carbon block; 21. Filter plate No. 2; 22. Cooling pipe; 23. Cooling chamber; 24. Liquid outlet; 25. Support plate; 26. Refrigeration plate; 27. Cooling tank; 28. Refrigeration module. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-7 As shown, a device for purifying and decolorizing 2,6-dihydroxytoluene comprises a supporting plate 1; a circulating dissolving component 2 is arranged on the side of the supporting plate 1 through a fixing member, the circulating dissolving component 2 comprises an outer sleeve 3, and the outer sleeve 3 is installed on the side of the supporting plate 1 through a fixing member, an inner sleeve 4 is arranged through the outer sleeve 3, a No. 1 filter plate 5 is installed in the inner sleeve 4, and a heating plate 6 is arranged on the outer side of the inner sleeve 4;

[0028] A connecting pipe 8 for connecting to a water injection tank 9 is installed under the outer sleeve 3, a No. 1 circulation pipe 10 is installed under the water injection tank 9, a circulation pump 11 and a No. 1 valve 12 are installed on the No. 1 circulation pipe 10, a tee is installed at the other end of the No. 1 circulation pipe 10, and a No. 2 circulation pipe 13 is installed at one interface of the tee, the other end of the No. 2 circulation pipe 13 is bent upward and arranged in the upper opening of the inner sleeve 4, a No. 2 circulation pipe 13 is installed with a No. 2 valve 16, and a filling pipe 15 is installed on the water injection tank 9;

[0029] A drain pipe 17 is installed in another interface of the tee installed at the end of the No. 1 circulation pipe 10, a No. 3 valve 19 is installed on the drain pipe 17, and a filtering and cooling component is arranged at the other end of the drain pipe 17.

[0030] During operation, since the existing 2,6-dihydroxytoluene purification and decolorization equipment is cumbersome to operate, the purification and decolorization efficiency is slow, and the dissolution speed is slow, resulting in a slow processing speed, which affects the production efficiency. In this scheme, by keeping the No. 1 valve 12, the No. 3 valve 19 and the No. 2 valve 16 in a closed state, the 2,6-dihydroxytoluene crude crystals are first put into the inner sleeve 4 from the upper opening of the inner sleeve 4. At this time, the 2,6-dihydroxytoluene crude crystals will be located on the No. 1 filter plate 5, and water will be poured into the water injection tank 9 from the filling pipe 15, and then the No. 1 valve 12 and the No. 2 valve 16 will be opened, and the circulation pump 11 will be controlled to operate. When the circulation pump 11 is running, the water in the water injection tank 9 will be transported into the No. 2 circulation pipe 13 through the No. 1 circulation pipe 10, and poured into the inner sleeve 4 through one end of the No. 2 circulation pipe 13 vertically arranged in the inner sleeve 4. At this time, the 2,6-dihydroxytoluene crude crystals located on the No. 1 filter plate 5 will be moved under the impact of the water transported into the inner sleeve 4. The impact dissolution is carried out, and the solution of the 2,6-dihydroxytoluene crude crystals dissolved by the water flow will leak under the No. 1 filter plate 5 and flow back into the water injection tank 9 through the connecting pipe 8. At this time, under the continuous operation of the circulating pump 11, the dissolved liquid in the water injection tank 9 will be recirculated and transported to impact the 2,6-dihydroxytoluene crude crystals on the No. 1 filter plate 5. At the same time, the heating plate 6 is controlled by the heating controller 7 to heat. When the heating plate 6 is heated, the water and the 2,6-dihydroxytoluene crude crystals in the inner sleeve 4 are heated. The heated dissolved liquid will accelerate the dissolution rate of the 2,6-dihydroxytoluene crude crystals. After the dissolution is completed, the No. 3 valve 19 is opened and the No. 2 valve 16 is closed. At this time, the 2,6-dihydroxytoluene dissolved liquid can be filtered and cooled by the filtering and cooling component for purification and decolorization, and the effect of improving the dissolution efficiency is achieved, which effectively improves the purification and decolorization processing speed faster, and the production efficiency is higher than that of traditional purification and decolorization equipment.

[0031] The heating plate 6 is located in the outer sleeve 3 , and a heating controller 7 for controlling the heating plate 6 is installed on the side of the supporting vertical plate 1 .

[0032] See also Figure 1-4 As shown, the end of the No. 2 circulation pipe 13 is vertically arranged in the opening of the inner sleeve 4, and a sealing cover 14 is slidably arranged on the vertical end of the No. 2 circulation pipe 13, and the sealing cover 14 is threadedly connected in the upper opening of the inner sleeve 4.

[0033] During operation, in order to ensure the stability of the purification and decolorization equipment in this scheme, in this scheme, the sealing cover 14 is rotated and sealed in the upper opening of the inner sleeve 4, so that the end of the No. 2 circulation pipe 13 can be positioned during use to ensure stability in use.

[0034] See also Figure 5-6As shown, the filtering and cooling assembly includes a filtering bin 18, in which an activated carbon block 20 and a No. 2 filter plate 21 are arranged, a cooling pipe 22 is installed on the side of the filtering bin 18 opposite to the No. 3 valve 19, a cooling bin 23 is installed on the cooling pipe 22, and the portion of the cooling pipe 22 located in the cooling bin 23 is bent in a serpentine pipe shape, a liquid outlet 24 is vertically arranged downward at the other end of the cooling pipe 22, and a refrigeration containing assembly is arranged on the side of the supporting vertical plate 1 below the liquid outlet 24 port.

[0035] During operation, in order to ensure the production efficiency of the purification and decolorization equipment in this scheme and reduce the processing operation time, in this scheme, water is poured into the cooling bin 23, and the 2,6-dihydroxytoluene solution enters the filter bin 18 and is filtered and adsorbed by the activated carbon block 20 and the second filter plate 21 for purification and decolorization. The solution after filtration and adsorption enters the cooling pipe 22, and when the solution flows through the cooling bin 23, it will be cooled by the water in the cooling bin 23 for the subsequent crystallization processing, which achieves the effect of reducing the processing time and improving production efficiency.

[0036] The cooling bin 23 is installed on the side of the supporting plate 1 through a fixing part, the activated carbon block 20 is located on the side of the filter bin 18 close to the No. 3 valve 19, and the activated carbon block 20 and the No. 2 filter plate 21 are arranged and sealed in the refrigeration module 28.

[0037] See also Figure 5-7 As shown, the refrigeration containing assembly includes a support plate 25 , and the support plate 25 is installed on the side of the supporting vertical plate 1 , and a refrigeration fin 26 is arranged on the support plate 25 , and a cooling tank 27 is placed on the refrigeration fin 26 .

[0038] During operation, in order to ensure the normal use of the purification and decolorization equipment in this scheme and to ensure the normal progress of the crystallization process, in this scheme, the dissolved liquid after cooling will be discharged from the liquid outlet 24 into the cooling tank 27. At this time, the refrigeration module 28 is used to control the refrigeration plate 26 for refrigeration. When the refrigeration plate 26 is refrigerated, the dissolved liquid in the cooling tank 27 will be cooled so that the dissolved liquid can crystallize. The crystallization processing effect is achieved in cooperation, and the normal use of the equipment is ensured.

[0039] The cooling tank 27 is located directly below the liquid outlet 24 , and a refrigeration module 28 for controlling the refrigeration fins 26 is installed under the support plate 25 .

[0040] Working principle: by keeping valve No. 12, valve No. 3 19 and valve No. 2 16 in a closed state, first put the crude crystals of 2,6-dihydroxytoluene into the inner sleeve 4 from the upper opening of the inner sleeve 4. At this time, the crude crystals of 2,6-dihydroxytoluene will be located on the No. 1 filter plate 5, and water will be poured into the water injection tank 9 from the filling pipe 15. Then, valve No. 12 and valve No. 2 16 are opened, and the circulation pump 11 is controlled to operate. When the circulation pump 11 is running, the water in the water injection tank 9 will be transported into the No. 2 circulation pipe 13 through the No. 1 circulation pipe 10, and poured into the inner sleeve 4 through one end of the No. 2 circulation pipe 13 vertically arranged in the inner sleeve 4. At this time, The water transported into the inner sleeve 4 will impact and dissolve the crude 2,6-dihydroxytoluene crystals on the No. 1 filter plate 5, and the solution dissolved by the water flow will leak under the No. 1 filter plate 5 and flow back into the water injection tank 9 through the connecting pipe 8. At this time, the dissolved liquid in the water injection tank 9 will be recirculated and transported to impact the crude 2,6-dihydroxytoluene crystals on the No. 1 filter plate 5 under the continuous operation of the circulation pump 11. At the same time, the heating plate 6 is controlled by the heating controller 7 to heat. When the heating plate 6 is heated, the water and the crude 2,6-dihydroxytoluene crystals in the inner sleeve 4 are heated. The heated solution The solution will accelerate the dissolution rate of 2,6-dihydroxytoluene crude crystals. After the dissolution is completed, the No. 3 valve 19 is opened and the No. 2 valve 16 is closed. At this time, the 2,6-dihydroxytoluene solution can be filtered and cooled by the filtering and cooling component for purification and decolorization. The sealing cover 14 is rotated and sealed in the upper opening of the inner sleeve 4. When used, the positioning of the end of the No. 2 circulation pipe 13 can be ensured to ensure the stability of use. Water is poured into the cooling bin 23. After the 2,6-dihydroxytoluene solution enters the filtering bin 18, it will be filtered and adsorbed by the activated carbon block 20 and the No. 2 filter plate 21 for purification and decolorization. The dissolved solution after filtration and adsorption will enter The dissolved liquid enters the cooling pipe 22, and when the dissolved liquid flows through the cooling bin 23, it will be cooled by the water in the cooling bin 23 to facilitate the subsequent crystallization process. The cooperation achieves the effect of reducing the processing time and improving the production efficiency. The cooled dissolved liquid will be discharged from the liquid outlet 24 into the cooling tank 27. At this time, the cooling module 28 controls the refrigeration plate 26 for refrigeration. When the refrigeration plate 26 is refrigerated, the dissolved liquid in the cooling tank 27 will be cooled so that the dissolved liquid can be crystallized. The cooperation achieves the effect of improving the dissolution efficiency, effectively improving the purification and decolorization process speed, and having higher production efficiency than traditional purification and decolorization equipment.

[0041] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A device for purifying and decolorizing 2,6-dihydroxytoluene, characterized in that: It comprises a supporting upright plate (1); a circulating dissolving component (2) is arranged on the side of the supporting upright plate (1) via a fixing member, the circulating dissolving component (2) comprises an outer sleeve (3), and the outer sleeve (3) is installed on the side of the supporting upright plate (1) via a fixing member, an inner sleeve (4) is arranged through the outer sleeve (3), a filter plate (5) is installed in the inner sleeve (4), and a heating plate (6) is arranged on the outer side of the inner sleeve (4); A connecting pipe (8) for connecting to a water injection tank (9) is installed under the outer sleeve (3), a No. 1 circulation pipe (10) is installed under the water injection tank (9), a circulation pump (11) and a No. 1 valve (12) are installed on the No. 1 circulation pipe (10), a tee is installed at the other end of the No. 1 circulation pipe (10), and a No. 2 circulation pipe (13) is installed on one interface of the tee, the other end of the No. 2 circulation pipe (13) is bent upward and arranged in the upper opening of the inner sleeve (4), a No. 2 valve (16) is installed on the No. 2 circulation pipe (13), and a filling pipe (15) is installed on the water injection tank (9); A drain pipe (17) is installed in another interface of the three-way connection installed at the end of the No. 1 circulation pipe (10), a No. 3 valve (19) is installed on the drain pipe (17), and a filtering and cooling component is arranged at the other end of the drain pipe (17).

2. A device for purifying and decolorizing 2,6-dihydroxytoluene according to claim 1, characterized in that: The heating plate (6) is located inside the outer sleeve (3), and a heating controller (7) for controlling the heating plate (6) is installed on the side of the supporting vertical plate (1).

3. A 2,6-dihydroxytoluene purification and decolorization device according to claim 1, characterized in that: The end of the No. 2 circulation pipe (13) is vertically arranged in the opening of the inner sleeve (4), and a sealing cover (14) is slidably arranged on the vertical end of the No. 2 circulation pipe (13), and the sealing cover (14) is threadedly connected and arranged in the upper opening of the inner sleeve (4).

4. A 2,6-dihydroxytoluene purification and decolorization device according to claim 1, characterized in that: The filtering and cooling component comprises a filtering bin (18), wherein an activated carbon block (20) and a second filter plate (21) are arranged in the filtering bin (18), a cooling pipe (22) is installed on the side of the filtering bin (18) opposite to the third valve (19), a cooling bin (23) is installed on the cooling pipe (22), and the portion of the cooling pipe (22) located in the cooling bin (23) is arranged in a serpentine pipe bend, a liquid outlet (24) is arranged vertically downward at the other end of the cooling pipe (22), and a refrigeration containing component is arranged on the side of the supporting vertical plate (1) below the liquid outlet (24).

5. A 2,6-dihydroxytoluene purification and decolorization device according to claim 4, characterized in that: The cooling bin (23) is mounted on the side of the supporting vertical plate (1) via a fixing member, the activated carbon block (20) is located on the side of the filter bin (18) close to the No. 3 valve (19), and the activated carbon block (20) and the No. 2 filter plate (21) are both arranged and sealed in the refrigeration module (28).

6. A 2,6-dihydroxytoluene purification and decolorization device according to claim 5, characterized in that: The refrigeration containing assembly comprises a support plate (25), and the support plate (25) is installed on the side of the supporting vertical plate (1), a refrigeration fin (26) is arranged on the support plate (25), and a cooling tank (27) is placed on the refrigeration fin (26).

7. The device for purifying and decolorizing 2,6-dihydroxytoluene according to claim 6, characterized in that: The cooling tank (27) is located directly below the liquid outlet (24), and a refrigeration module (28) for controlling the refrigeration fins (26) is installed under the support plate (25).

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