Crystallization and suction filtration integrated device for preparing dye intermediate

Abstract

The utility model relates to the technical field of chemical production, in particular to a crystallization and suction filtration integrated device for preparing dye intermediates, which comprises a treatment box, a crystallization barrel is arranged on the treatment box, a filter barrel communicated with the bottom end of the crystallization barrel is arranged in the treatment box, and an electromagnetic valve is arranged at the communication position of the filter barrel and the crystallization barrel. And a driving assembly is further arranged on the treatment box. According to the utility model, the mixing efficiency of a reaction solution in the crystallization barrel and condensed water in the jacket can be improved, the crystallization efficiency can be improved, the crystallization efficiency of crystals can be improved through the first motor, meanwhile, the filtered crystals are conveyed, and compared with step-by-step treatment, the scheme can simplify the operation process and reduce the production cost. According to the crystal treatment device, the continuity of crystal treatment can be guaranteed, the treatment efficiency can be improved, meanwhile, the number of used driving sources can be reduced, energy can be saved, meanwhile, crystals can be cleaned, mother liquor and impurities remaining on the crystals can be removed, and the quality of the crystals can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical production, in particular to an integrated device for preparing dye intermediate crystallization and filtration. Background Art

[0002] In the process of chemical synthesis, especially in the rapid preparation process of acid black 172 dye intermediate, the reaction solution needs to be cooled, crystallized, and filtered to separate and purify the dye intermediate.

[0003] The traditional crystallization and filtration process usually includes two independent stages: first, the solution is cooled and crystallized, and then the formed crystals are separated by filtration. The material needs to be transferred from the crystallizer to the filtration equipment, which increases the operation steps and labor intensity, and increases the time of the entire production cycle. At the same time, the transfer process may cause product loss or contamination by impurities. At the same time, the independently operated equipment leads to low energy utilization efficiency and high energy consumption.

[0004] To this end, an integrated device for preparing dye intermediate crystallization and filtration is proposed. Utility Model Content

[0005] The utility model aims to provide an integrated device for preparing dye intermediate crystallization and suction filtration.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A device for preparing dye intermediate crystallization and extraction filtration, comprising: a processing box, a crystallization barrel is arranged on the processing box, a filter barrel connected to the bottom end of the crystallization barrel is arranged in the processing box, a solenoid valve is arranged at the communication outlet between the filter barrel and the crystallization barrel, and a driving assembly is also arranged on the processing box, the driving assembly comprises a first motor fixedly mounted on the side wall of the processing box, a second pulley is fixedly connected to the output end of the first motor, a transmission shaft is fixedly connected to the central axis of the second pulley, and the transmission shaft extends into the filter barrel, a connecting shaft is rotatably mounted on the side wall of the crystallization barrel, a plurality of stirring blades are evenly fixedly mounted on the outer wall of the connecting shaft located in the crystallization barrel, a first pulley is fixedly mounted on the side wall of the connecting shaft, and a transmission belt is commonly sleeved on the outer sides of the first pulley and the second pulley.

[0008] Preferably, a spiral conveyor plate is fixedly installed on the outer side of the transmission shaft, and the outer wall of the spiral conveyor plate is tightly fitted with the inner wall of the filter barrel. A plurality of filter holes are evenly arranged on the bottom wall of the filter barrel, and a conduit is also connected to the bottom wall of the filter barrel.

[0009] Preferably, a jacket is provided on the outer wall of the crystallization barrel, a water outlet pipe is connected to the side wall at the top end of the jacket, and a water inlet pipe is connected to the side wall at the bottom end of the jacket.

[0010] Preferably, a water collecting box is provided on the bottom wall of the filter barrel, and the water collecting box is located below the filter hole, a suction pump is provided on the side wall of the water collecting box, a mother liquor collecting pipe is connected to the bottom wall of the water collecting box, and the mother liquor collecting pipe extends outside the treatment box.

[0011] Preferably, a processing assembly is also provided in the processing box, and the processing assembly includes a plurality of conveying rollers evenly arranged in the processing box, and a second motor for driving the conveying rollers is also provided on the side wall of the processing box, and a conveyor belt is commonly sleeved on the outer sides of the plurality of conveying rollers, and the conveyor belt extends to the outside of the processing box, and the conveyor belt is inclined at one end close to the filter barrel, and a plurality of circular holes are evenly opened on the outer wall of the conveyor belt, and a plurality of baffles are also evenly fixedly installed on the outer wall of the conveyor belt.

[0012] Preferably, the bottom end of the conveyor belt is located directly below the conduit, a spray rack is provided on the side wall of the processing box, a plurality of nozzles are evenly arranged on the bottom wall of the spray rack, a water pump connected to the spray rack is also provided on the processing box, two flow limiting plates are provided on the bottom wall of the processing box, a drain pipe is provided on the side wall of the bottom end of the processing box, and the spray rack and the drain pipe are both located between the two flow limiting plates.

[0013] Preferably, a dryer is further provided in the processing box, and the dryer is located just above the level of the conveyor belt.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. By setting a driving component, the first motor can drive the second pulley to rotate. At this time, the second pulley can drive the first pulley to rotate through the transmission belt. At this time, the connecting shaft on the first pulley can drive the stirring blade to rotate in the crystallization barrel, which can improve the mixing efficiency of the reaction solution in the crystallization barrel and the condensed water in the jacket, and can improve the crystallization efficiency. When the crystallized solution enters the filter barrel, the filter hole can separate the crystals in the reaction solution from the reaction solution, and the suction pump can adsorb the reaction solution, which can improve the filtration efficiency. During the rotation of the first motor, the first motor can make the transmission shaft rotate synchronously in the filter barrel. At this time, the spiral conveying sheet can transport the crystals falling into the filter barrel, which is convenient for subsequent processing of the crystals. Therefore, the crystallization efficiency of the crystals can be improved by the first motor while the filtered crystals can be transported. Compared with step-by-step processing, this solution can simplify the operation process, ensure the continuity of crystal processing, improve processing efficiency, and reduce the number of driving sources used, which can save energy.

[0016] 2. By setting up a processing component, when the crystals in the filter barrel fall onto the conveyor belt through the conduit, the crystals can be transported through the conveyor belt, which is convenient for processing the crystals. At this time, the water pump can drive clean water to spray out from the nozzle at the bottom of the spray rack, which can clean the crystals and remove the mother liquor and impurities remaining on the crystals, thereby improving the quality of the crystals. The baffle on the conveyor belt can prevent the crystals from sliding at the inclined part of the conveyor belt, which is beneficial to the transportation of the crystals. At the same time, the circular holes can facilitate the water used to clean the crystals to flow out from the conveyor belt, which can avoid the crystals after cleaning being mixed with a large amount of water, thereby improving the drying efficiency. When the crystals are transported to the bottom of the dryer, the dryer can dry the cleaned crystals, which is beneficial to the collection of the crystals. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the top of the processing box in the embodiment of the utility model;

[0018] Figure 2 This is a schematic cross-sectional structure diagram of a processing box in an embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the first motor output terminal in the embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the conveyor belt in the embodiment of the utility model.

[0021] In the figure: 1, treatment box; 2, water pump; 3, jacket; 4, crystallization barrel; 5, first pulley; 6, transmission belt; 7, first motor; 8, second pulley; 9, mother liquor collection pipe; 10, drain pipe; 11, solenoid valve; 12, connecting shaft; 13, stirring blade; 14, outlet pipe; 15, inlet pipe; 16, spray rack; 17, dryer; 18, conveyor belt; 19, flow limiting plate; 20, nozzle; 21, conduit; 22, filter barrel; 23, filter hole; 24, water collecting box; 25, suction pump; 26, transmission shaft; 27, spiral conveyor sheet; 28, second motor; 29, conveyor roller; 30, baffle; 31, round hole. DETAILED DESCRIPTION

[0022] 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.

[0023] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] Embodiment 1:

[0025] See also Figures 1 to 3 , a suction filtration integrated device, comprising: a processing box 1, a crystallization barrel 4 is arranged on the processing box 1, a filter barrel 22 connected to the bottom end of the crystallization barrel 4 is arranged in the processing box 1, and a solenoid valve 11 is arranged at the communication outlet between the filter barrel 22 and the crystallization barrel 4, and a driving component is also arranged on the processing box 1, and the driving component comprises a first motor 7 fixedly mounted on the side wall of the processing box 1, and a second pulley 8 is fixedly connected to the output end of the first motor 7, and a transmission shaft 26 is fixedly connected to the central axis of the second pulley 8, and the transmission shaft 26 extends into the filter barrel 22, and a connecting shaft 12 is rotatably mounted on the side wall of the crystallization barrel 4, and a plurality of stirring blades 13 are evenly fixedly mounted on the outer wall of the connecting shaft 12 located in the crystallization barrel 4, and a first pulley 5 is fixedly mounted on the side wall of the connecting shaft 12, and a transmission belt 6 is commonly sleeved on the outer sides of the first pulley 5 and the second pulley 8.

[0026] See also Figure 2 A spiral conveying piece 27 is fixedly installed on the outer side of the transmission shaft 26, and the outer wall of the spiral conveying piece 27 is tightly fitted with the inner wall of the filter barrel 22. A plurality of filter holes 23 are evenly opened on the bottom wall of the filter barrel 22, and a conduit 21 is also connected to the bottom wall of the filter barrel 22.

[0027] See also Figure 2 A jacket 3 is provided on the outer wall of the crystallization barrel 4, a water outlet pipe 14 is connected to the side wall at the top of the jacket 3, and a water inlet pipe 15 is connected to the side wall at the bottom of the jacket 3.

[0028] See also Figure 2 A water collecting box 24 is arranged on the bottom wall of the filter barrel 22, and the water collecting box 24 is located below the filter hole 23. A suction pump 25 is arranged on the side wall of the water collecting box 24. A mother liquor collecting pipe 9 is connected to the bottom wall of the water collecting box 24, and the mother liquor collecting pipe 9 extends to the outside of the treatment box 1.

[0029] In this embodiment, when in use, the first motor 7 can drive the second pulley 8 to rotate. At this time, the second pulley 8 can drive the first pulley 5 to rotate through the transmission belt 6. At this time, the connecting shaft 12 on the first pulley 5 can drive the stirring blade 13 to rotate in the crystallization barrel 4, which can improve the mixing efficiency of the reaction solution in the crystallization barrel 4 and the condensed water in the jacket 3, and can improve the crystallization efficiency. When the crystallized solution enters the filter barrel 22, the filter hole 23 can separate the crystals in the reaction solution from the reaction solution, and the suction pump 25 can adsorb the reaction solution, which can improve the filtration efficiency. During the rotation of the first motor 7, the first motor 7 can make the transmission shaft 26 rotate synchronously in the filter barrel 22. At this time, the spiral conveying sheet 27 can convey the crystals falling into the filter barrel 22, which is convenient for subsequent processing of the crystals. Therefore, the crystallization efficiency of the crystals can be improved by the first motor 7 while conveying the filtered crystals. Compared with step-by-step processing, this solution can simplify the operation process, ensure the continuity of crystal processing, improve processing efficiency, and reduce the number of driving sources used, which can save energy.

[0030] Embodiment 2:

[0031] See also Figures 1 to 4 , an integrated device for preparing dye intermediate crystallization and filtration, also includes: a processing component arranged in a processing box 1, the processing component includes a plurality of conveying rollers 29 evenly arranged in the processing box 1, a second motor 28 for driving the conveying rollers 29 is also arranged on the side wall of the processing box 1, a conveying belt 18 is commonly sleeved on the outer side of the plurality of conveying rollers 29, and the conveying belt 18 extends to the outside of the processing box 1, the conveying belt 18 is inclined at one end close to the filter barrel 22, a plurality of circular holes 31 are evenly opened on the outer wall of the conveying belt 18, and a plurality of baffles 30 are evenly fixedly installed on the outer wall of the conveying belt 18.

[0032] See also Figure 2 The bottom end of the conveyor belt 18 is located directly below the conduit 21. A spray rack 16 is also provided on the side wall of the processing box 1. A plurality of nozzles 20 are evenly arranged on the bottom wall of the spray rack 16. A water pump 2 connected to the spray rack 16 is also provided on the processing box 1. Two flow limiting plates 19 are provided on the bottom wall of the processing box 1. A drain pipe 10 is provided on the side wall at the bottom end of the processing box 1. The spray rack 16 and the drain pipe 10 are both located between the two flow limiting plates 19.

[0033] See also Figure 2 A dryer 17 is also provided in the processing box 1, and the dryer 17 is located directly above the level of the conveyor belt 18.

[0034] In this embodiment, when in use, after the crystals in the filter barrel 22 fall onto the conveyor belt 18 through the conduit 21, the crystals can be transported through the conveyor belt 18, which is convenient for processing the crystals. At this time, the water pump 2 can drive clean water to spray out from the nozzle 20 at the bottom of the spray rack 16, so as to clean the crystals, remove the mother liquor and impurities remaining on the crystals, and improve the quality of the crystals. The baffle 30 on the conveyor belt 18 can prevent the crystals from sliding at the inclined part of the conveyor belt 18, which is beneficial to the transportation of the crystals. At the same time, the circular hole 31 can facilitate the water used to clean the crystals to flow out from the conveyor belt 18, so as to avoid the crystals after cleaning being mixed with a large amount of water, and improve the drying efficiency. When the crystals are transported to the bottom of the dryer 17, the dryer 17 can dry the cleaned crystals, which is beneficial to the collection of the crystals.

[0035] Working principle: First, the reaction solution after the reaction is completed is introduced into the crystallization barrel 4, and then condensed water is introduced into the jacket 3 through the water inlet pipe 15 and the water outlet pipe 14 to cool the reaction solution and crystallize. At this time, the first motor 7 is started, and the first motor 7 can drive the second pulley 8 to rotate. At this time, the second pulley 8 can drive the first pulley 5 to rotate through the transmission belt 6. At this time, the connecting shaft 12 on the first pulley 5 can drive the stirring blade 13 to rotate in the crystallization barrel 4, which can improve the mixing efficiency of the reaction solution in the crystallization barrel 4 and the condensed water in the jacket 3, and can improve the crystallization efficiency. Then the solenoid valve 11 is started. The crystallized solution can enter the filter barrel 22, the filter hole 23 can separate the crystals in the reaction solution from the reaction solution, and the suction pump 25 can adsorb the reaction solution, which can improve the filtration efficiency. At this time, the mother liquor can fall into the water collecting tank 24 and be further discharged from the mother liquor collecting pipe 9. During the rotation of the first motor 7, the first motor 7 can make the transmission shaft 26 rotate synchronously in the filter barrel 22. At this time, the spiral conveying piece 27 can convey the crystals falling into the filter barrel 22, which is convenient for subsequent processing of the crystals. Therefore, the crystallization efficiency of the crystals can be improved by the first motor 7. At the same time, the filtered crystals are transported. Compared with the step-by-step treatment, this solution can simplify the operation process, ensure the continuity of crystal treatment, improve treatment efficiency, reduce the number of driving sources used, and save energy. When the crystals in the filter barrel 22 fall on the conveyor belt 18 through the conduit 21, the crystals can be transported by the second motor 28 in conjunction with the conveyor roller 29 and the conveyor belt 18, which is convenient for the treatment of the crystals. At this time, the water pump 2 can drive the clean water to spray out from the nozzle 20 at the bottom of the spray rack 16, which can clean the crystals and remove the residual water on the crystals. The retained mother liquor and impurities can improve the quality of the crystals, and the baffle 30 on the conveyor belt 18 can prevent the crystals from sliding on the inclined part of the conveyor belt 18, which is beneficial to the transportation of the crystals. At the same time, the circular holes 31 can facilitate the water used to clean the crystals to flow out from the conveyor belt 18, which can avoid the washed crystals being mixed with a large amount of water, and can improve the drying efficiency. The washed water can fall between the limiting plates 19 and further be discharged from the processing box 1 through the drain pipe 10. When the crystals are transported to the bottom of the dryer 17, the dryer 17 can dry the washed crystals, which is beneficial to the collection of the crystals.

[0036] The above shows and describes the basic principles, 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. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An integrated device for preparing dye intermediate crystallization and filtration, comprising: A processing box (1), characterized in that: a crystallization barrel (4) is arranged on the processing box (1), a filter barrel (22) connected to the bottom end of the crystallization barrel (4) is arranged in the processing box (1), a solenoid valve (11) is arranged at the connection between the filter barrel (22) and the crystallization barrel (4), and a driving component is also arranged on the processing box (1), and the driving component includes a first motor (7) fixedly mounted on the side wall of the processing box (1), and the output end of the first motor (7) is fixedly connected to a second pulley (8), A transmission shaft (26) is fixedly connected to the central axis of the second pulley (8), and the transmission shaft (26) extends into the filter barrel (22). A connecting shaft (12) is rotatably mounted on the side wall of the crystallization barrel (4). A plurality of stirring blades (13) are evenly fixedly mounted on the outer wall of the connecting shaft (12) located inside the crystallization barrel (4). A first pulley (5) is fixedly mounted on the side wall of the connecting shaft (12). A transmission belt (6) is commonly sleeved on the outer sides of the first pulley (5) and the second pulley (8).

2. The integrated device for preparing dye intermediate crystallization and suction filtration according to claim 1, characterized in that: A spiral conveying piece (27) is fixedly mounted on the outer side of the transmission shaft (26), and the outer wall of the spiral conveying piece (27) is tightly fitted with the inner wall of the filter barrel (22). A plurality of filter holes (23) are evenly arranged on the bottom wall of the filter barrel (22), and a conduit (21) is also connected to the bottom wall of the filter barrel (22).

3. The integrated device for preparing dye intermediate crystallization and suction filtration according to claim 2, characterized in that: A jacket (3) is provided on the outer wall of the crystallization barrel (4), a water outlet pipe (14) is provided on the side wall at the top end of the jacket (3), and a water inlet pipe (15) is provided on the side wall at the bottom end of the jacket (3).

4. The integrated device for preparing dye intermediate crystallization and suction filtration according to claim 3, characterized in that: A water collecting box (24) is arranged on the bottom wall of the filter barrel (22), and the water collecting box (24) is located below the filter hole (23). A suction pump (25) is arranged on the side wall of the water collecting box (24). A mother liquor collecting pipe (9) is arranged on the bottom wall of the water collecting box (24), and the mother liquor collecting pipe (9) extends to the outside of the treatment box (1).

5. The integrated device for preparing dye intermediate crystallization and suction filtration according to claim 1, characterized in that: A processing assembly is also provided in the processing box (1), and the processing assembly includes a plurality of conveying rollers (29) uniformly arranged in the processing box (1). A second motor (28) for driving the conveying rollers (29) is also provided on the side wall of the processing box (1). A conveying belt (18) is commonly sleeved on the outer sides of the plurality of conveying rollers (29), and the conveying belt (18) extends to the outside of the processing box (1). The conveying belt (18) is inclinedly arranged at one end close to the filter barrel (22), and a plurality of circular holes (31) are uniformly opened on the outer wall of the conveying belt (18). A plurality of baffles (30) are also uniformly fixedly installed on the outer wall of the conveying belt (18).

6. The integrated device for preparing dye intermediate crystallization and suction filtration according to claim 5, characterized in that: The bottom end of the conveyor belt (18) is located directly below the conduit (21); a spray rack (16) is also provided on the side wall of the treatment box (1); a plurality of spray heads (20) are evenly arranged on the bottom wall of the spray rack (16); a water pump (2) connected to the spray rack (16) is also provided on the treatment box (1); two flow limiting plates (19) are provided on the bottom wall of the treatment box (1); a drain pipe (10) is provided on the side wall at the bottom end of the treatment box (1); the spray rack (16) and the drain pipe (10) are both located between the two flow limiting plates (19).

7. The integrated device for preparing dye intermediate crystallization and suction filtration according to claim 6, characterized in that: A dryer (17) is also provided in the processing box (1), and the dryer (17) is located just above the level of the conveyor belt (18).

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