Solid-liquid separation device for indigo production

Abstract

The application provides a solid-liquid separation device for indigo production, which comprises a box body, a partition plate arranged at the lower part in the box body, and a separation cavity and a power cavity formed by the partition plate; a motor arranged at the bottom of the box body, an output end of the motor fixedly connected with a driving shaft, a main gear arranged at the position of the driving shaft outside the power cavity, a plurality of driven shafts arranged in the power cavity in a symmetrical manner about the center of the driving shaft, a plurality of driven gears fixedly arranged on the driven shafts, and the main gear and the driven gears in meshing connection; the plurality of driven shafts extending into the separation cavity, a tray fixedly connected with the top of each of the plurality of driven shafts, a plurality of filter cartridges corresponding to the number of the trays arranged in the separation cavity, and the tray and the bottom of the filter cartridge in detachable connection; a plurality of feeding ports arranged at the top of the box body and above the plurality of filter cartridges, a drain pipe connected with the side wall of the box body, and a sealing door arranged on the box body. The application prolongs the cleaning period of the filter cartridge and improves the solid-liquid separation efficiency.

Description

Technical Field

[0001] This application relates to the field of soil sampling technology, and in particular to a solid-liquid separation device for indigo production. Background Technology

[0002] Indigo is a green, environmentally friendly, and historically significant vat dye, mainly used for dyeing cotton yarn, cotton fabric, wool, or silk. It has excellent lightfastness, weather fastness, and heat stability, providing a blue hue. It can also be prepared into liquid dispersion formulations, primarily used for coloring viscose fiber pulp and dyeing.

[0003] The commonly used process for synthesizing indigo is as follows: Potassium / sodium aniline acetate reacts with sodium aminoacetate in a system using a mixed alkali of KOH and NaOH as a solvent, producing potassium / sodium indophenolate, ammonia, and sodium hydroxide. Potassium / sodium indophenolate is dissolved in water and oxidized by bubbling in air to produce indigo. The resulting reaction slurry contains indigo. After solid-liquid separation, the solid phase is repeatedly washed with water and dried to produce powdered indigo.

[0004] While existing solid-liquid separation devices can separate reaction slurries containing indigo, indigo particles tend to adhere to the inner wall of the filter components during the separation process, requiring periodic cleaning. This results in low solid-liquid separation efficiency and a long indigo production cycle. Utility Model Content

[0005] This application provides a solid-liquid separation device for indigo production to solve the problems mentioned in the background art.

[0006] This application provides a solid-liquid separation device for indigo production, comprising: a housing, wherein a partition is provided in the lower part of the housing, the partition dividing the interior of the housing into a separation chamber and a power chamber; A motor is installed at the bottom of the housing. The output end of the motor is fixedly connected to the drive shaft. The drive shaft extends vertically into the power chamber. A main gear is installed outside the drive shaft and inside the power chamber. Multiple driven shafts are symmetrically arranged about the center of the drive shaft inside the power chamber. Driven gears are fixedly installed on the multiple driven shafts. The main gear and the driven gears are meshed and connected. Multiple driven shafts pass through the partition vertically and extend into the separation chamber. Each driven shaft has a tray fixedly connected to its top. The separation chamber contains multiple filter cartridges corresponding to the number of trays. The bottoms of the trays and filter cartridges are detachably connected. The top of the chamber has multiple feed inlets, which are located directly above multiple filter cartridges. The side walls of the chamber are connected to drain pipes, and a sealing door is installed on the side of the chamber opposite to the drain pipes.

[0007] Optionally, the tray is a columnar body with a height, and a groove is provided in the center of the tray. A protrusion is fixedly provided in the center of the bottom of the filter cartridge, and the protrusion is inserted into the groove.

[0008] Optionally, the outer surface of the bump or groove can be non-cylindrical.

[0009] Optionally, a limiting unit is also provided in the separation chamber. The limiting unit includes a fixing rod and a limiting ring. One end of the fixing rod is connected to the side wall of the box, and the other end of the fixing rod is connected to the outside of the limiting ring. The limiting ring is sleeved on the outside of the filter cartridge.

[0010] Optionally, the distance between the inner side of the limiting ring and the outer side of the filter cartridge is 2-5 cm.

[0011] Optionally, multiple feed inlets are connected to the slurry conveying pipe, and feed valves are installed on the multiple feed inlets, while drain valves are installed on the drain pipe.

[0012] Optionally, a first liquid level sensor is installed inside the filter cartridge, and a second liquid level sensor is installed inside the separation chamber.

[0013] Optionally, a controller is installed on the outside of the housing, which is electrically connected to the feed valve, drain valve, first liquid level sensor, second liquid level sensor and motor respectively.

[0014] The solid-liquid separation device for indigo production provided in this application achieves solid-liquid separation in indigo production, and has the following advantages compared with the prior art: (1) By setting multiple filter cartridges, the reaction slurry containing indigo is simultaneously dispersed for filtration, extending the time for periodic cleaning of filter cartridge 4, improving solid-liquid separation efficiency, and simultaneously improving indigo production efficiency. A groove is provided in the center of the tray, and a protrusion is fixedly provided in the center of the bottom of the filter cartridge, with the protrusion inserted into the groove. This achieves the connection between the tray and the filter cartridge, and makes cleaning the inside of the filter cartridge more convenient and faster.

[0015] (2) At the same time, the outer surfaces of the protrusions and grooves are non-cylindrical, ensuring that the tray can drive the filter cylinder to rotate while rotating, so as to achieve solid-liquid separation of the slurry.

[0016] (3) By setting a limiting unit, including a fixing rod and a limiting ring, and the limiting ring is sleeved on the outside of the filter cylinder, it can be ensured that the filter cylinder will not shake significantly in the horizontal direction during rotation, so as to ensure that the solid-liquid separation process is carried out efficiently, thereby improving the production efficiency of indigo.

[0017] (4) By setting up a controller, the opening degree of the feed valve and the drain valve, as well as the start and stop of the motor, can be controlled according to the liquid level information of the first liquid level sensor and the second liquid level sensor, which improves the convenience of the device operation and further improves the efficiency of solid-liquid separation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a solid-liquid separation device for indigo production provided in an embodiment of this application; Figure 2 This is a schematic diagram illustrating the connection relationship between the tray and the filter cartridge according to an embodiment of this application; Figure 3 This is a schematic diagram of the structure of a solid-liquid separation device for indigo production provided in another embodiment of this application; Figure 4 This is a schematic diagram of the connection of a controller provided in an embodiment of this application.

[0020] Explanation of reference numerals in the attached figures: 1: Housing; 2: Partition plate; 3: Motor; 4: Filter cartridge; 6: Slurry conveying pipe; 7: Controller; 110: Separation chamber; 120: Power chamber; 130: Feed inlet; 131: Feed valve; 140: Drain pipe; 141: Drain valve; 150: Sealing door; 160: Second liquid level sensor; 310: Driven shaft; 311: Main gear; 320: Driven shaft; 321: Driven gear; 330: Tray; 331: Groove; 410: Protrusion; 420: First liquid level sensor; 510: Fixing rod; 520: Limiting ring. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.

[0022] like Figure 1 As shown, this application provides a solid-liquid separation device for indigo production, including: a housing 1, and a partition 2 provided in the lower part of the housing 1, which divides the interior of the housing 1 into a separation chamber 110 and a power chamber 120. A motor 3 is installed at the bottom of the housing 1. The output end of the motor 3 is fixedly connected to the drive shaft 310. The drive shaft 310 extends vertically into the power chamber 120. A main gear 311 is installed outside the drive shaft 310 and inside the power chamber 120. Multiple driven shafts 320 are symmetrically arranged about the center of the drive shaft 310 inside the power chamber 120. A driven gear 321 is fixedly installed on the multiple driven shafts 320. The main gear 311 and the driven gear 321 are meshed and connected. Multiple driven shafts 320 pass through the partition 2 vertically and extend into the separation chamber 110. The top of each driven shaft 320 is fixedly connected to a tray 330. Multiple filter cartridges 4 corresponding to the number of trays 330 are provided inside the separation chamber 110. The bottom of the trays 330 and the filter cartridges 4 are detachably connected. The top of the housing 1 is provided with multiple feed inlets 130, which are located directly above multiple filter cartridges 4. The side wall of the housing 1 is connected to a drain pipe 140, and a sealing door 150 is installed on the side of the housing 1 opposite to the drain pipe 140.

[0023] Specifically, the reaction slurry containing indigo in the slurry tank is pumped into the tank 1 for solid-liquid separation. The partition 2 divides the interior of the tank 1 into a separation chamber 110 and a power chamber 120. The separation chamber 110 is used to separate the indigo particles from the mother liquor.

[0024] Motor 3 provides power for solid-liquid separation. Starting motor 3 rotates, driving drive shaft 310 to rotate. Drive shaft 310 drives main gear 311 to rotate, which in turn drives multiple driven gears 321 meshing with it, thereby driving multiple driven shafts 320 to rotate. Each driven shaft 320 has a tray 330 fixedly connected to its top. The tray 330 is detachably connected to the bottom of filter cylinder 4. Therefore, the rotation of the driven shafts 320 drives the tray 330 to rotate, which in turn drives the filter cylinder 4 to rotate. The filter cylinder 4 has evenly spaced holes on its sidewalls. As the filter cylinder 4 rotates, the reaction slurry containing indigo is centrifuged, causing the mother liquor to be thrown out through the holes, while the indigo particles remain inside the filter cylinder 4. This achieves solid-liquid separation of indigo and mother liquor. In this application, by setting multiple filter cylinders 4, the reaction slurry containing indigo is simultaneously dispersed for filtration, extending the interval between periodic cleaning of the filter cylinders 4, improving solid-liquid separation efficiency, and simultaneously increasing indigo production efficiency.

[0025] The mother liquor obtained during the solid-liquid separation process is stored in the separation chamber 110, and at the same time, the mother liquor in the separation chamber 110 is discharged in a timely manner through the drain pipe 140, thereby improving the solid-liquid separation efficiency.

[0026] Furthermore, the connection points between multiple driven shafts 320 and partition 2 are dynamically sealed (e.g., through bearing connections) to prevent mother liquor from leaking into the power chamber 120.

[0027] Furthermore, the bottom of the filter cartridge 4 is located within the tray 330, and no filter holes are opened on the outer periphery of the filter cartridge 4. A flexible seal, such as rubber, is provided at the connection between the top of the tray 330 and the filter cartridge 4 to reduce the amount of mother liquor flowing into the tray.

[0028] Furthermore, the ratio of the depth of the filter cartridge 4 extending into the tray 330 to the length of the filter cartridge 4 is 1:3-4.

[0029] In this application, during the separation process, the indigo solids inside the filter cartridge 4 need to be periodically discharged. The tray 330 is detachably connected to the bottom of the filter cartridge 4. By turning off the motor 3 and opening the sealing door 150, the filter cartridge 4 can be separated from the tray 330 and removed from the housing 1. After the indigo solids inside the filter cartridge 4 are removed, it is reinstalled in the housing 1, and the motor 3 is started to continue the solid-liquid separation. This design makes cleaning the inside of the filter cartridge 4 more convenient and faster. Compared with the prior art, which only has one large filter cartridge 4 inside the housing 1, requiring a lot of manpower and a long time to clean the filter cartridge, this application has multiple filter cartridges 4 inside the housing 1. Cleaning the filter cartridges 4 can be completed by a single person, and the disassembly and installation of the filter cartridges 4 are faster and more efficient, improving the solid-liquid separation efficiency and thus improving the production efficiency of indigo.

[0030] like Figure 2 As shown, optionally, the tray 330 is a column with height, and a groove 331 is provided in the center of the tray 330. A protrusion 410 is fixedly provided in the center of the bottom of the filter cartridge 4, and the protrusion 410 is inserted into the groove 331.

[0031] Optionally, the outer surfaces of the protrusion 410 and the groove 331 are non-cylindrical.

[0032] Specifically, by inserting the protrusion 410 into the groove 331, the tray 330 and the filter cartridge 4 are connected. When disassembling, the filter cartridge 4 is lifted upwards to separate the protrusion 410 from the groove 331, making the disassembly of the filter cartridge 4 more convenient. After long-term operation, it is also convenient to clean up any small amount of mother liquor that has leaked into the tray 330. At the same time, the outer surfaces of the protrusion 410 and the groove 331 are non-cylindrical, which ensures that the tray 330 can drive the filter cartridge 4 to rotate while rotating, thereby achieving solid-liquid separation of the slurry.

[0033] Furthermore, in order to prevent relative movement between the filter cartridge 4 and the tray 330 during rotation, a cross protrusion is provided at the bottom of the protrusion 410, and a cross groove is provided at the bottom of the groove 331. When the protrusion 410 and the groove 331 are inserted, the cross protrusion is embedded in the cross groove, ensuring that the filter cartridge 4 rotates with the tray 330, so that the mother liquor in the slurry is thrown out of the filter cartridge 4 under the action of centrifugal force, thereby improving the solid-liquid separation efficiency.

[0034] Optionally, a limiting unit is also provided in the separation chamber 110. The limiting unit includes a fixing rod 510 and a limiting ring 520. One end of the fixing rod 510 is connected to the side wall of the housing 1, and the other end of the fixing rod 510 is connected to the outside of the limiting ring 520. The limiting ring 520 is sleeved on the outside of the filter cartridge 4.

[0035] Specifically, the fixing rod 510 is set horizontally in the separation chamber 110, and the limiting ring 520 is sleeved on the outside of the filter cylinder 4. This ensures that the filter cylinder 4 will not shake significantly in the horizontal direction during rotation, so as to ensure that the solid-liquid separation process is carried out efficiently and thus improve the production efficiency of indigo.

[0036] Furthermore, the limiting ring 520 is set to be openable, or the distance between the top of the filter cartridge 4 and the top of the housing 1 is greater than the distance between the limiting ring 520 and the bottom of the filter cartridge 4. At the same time, the diameter of the feed inlet 130 is set according to the actual working conditions, so that when disassembling the filter cartridge 4, after lifting the filter cartridge 4 away from the limiting ring 520, it is tilted slightly so that the upper part of the filter cartridge 4 is separated from the feed inlet 130, and then the filter cartridge 4 is taken out of the housing 1 to ensure that the filter cartridge 4 is disassembled smoothly.

[0037] Optionally, the distance between the inner side of the limiting ring 520 and the outer side of the filter cartridge 4 is 2-5 cm.

[0038] Specifically, by controlling the distance between the inner side of the limiting ring 520 and the outer side of the filter cartridge 4, not only is the filter cartridge 4 prevented from shaking significantly, but also friction is prevented between the inner side of the limiting ring 520 and the filter cartridge 4, thereby ensuring efficient filtration.

[0039] like Figure 3 As shown, optionally, multiple feed inlets 130 are connected to the slurry conveying pipe 6, and feed valves 131 are provided on the multiple feed inlets 130, and drain valves 141 are provided on the drain pipe 140.

[0040] Optionally, a first liquid level sensor 420 is installed inside the filter cartridge 4, and a second liquid level sensor 160 is installed inside the separation chamber 110.

[0041] Specifically, the first liquid level sensor 420 is used to detect the liquid level in the filter cartridge 4 in real time, and the second liquid level sensor 160 is used to detect the liquid level in the separation chamber 110 in real time. By observing the liquid level information of the first liquid level sensor 420, the opening and closing of the feed valve 131 is controlled, and by observing the liquid level information of the second liquid level sensor 160, the opening degree of the feed valve 131 and the drain valve 141 is controlled to ensure efficient solid-liquid separation.

[0042] like Figure 4As shown, optionally, a controller 7 is provided on the outside of the housing 1. The controller 7 is electrically connected to the feed valve 131, the drain valve 141, the first liquid level sensor 420, the second liquid level sensor 160 and the motor 3 respectively.

[0043] Specifically, the first liquid level sensor 420 and the second liquid level sensor 160 transmit the detected liquid level information to the controller 7. The highest liquid level detected by the first liquid level sensor 420 is set as the first preset liquid level, and the highest liquid level detected by the second liquid level sensor 160 is set as the second preset liquid level. When the liquid level information received by the controller 7 from the first liquid level sensor 420 is greater than or equal to the first preset liquid level, the controller 7 closes the feed valve 131. When the liquid level information received by the controller 7 from the first liquid level sensor 420 is less than the first preset liquid level, the controller 7 opens the feed valve 131. The first preset liquid level is greater than the second preset liquid level.

[0044] When the liquid level information received by the controller 7 from the second liquid level sensor 160 is greater than or equal to the second preset liquid level, the controller 7 closes the feed valve 131 and increases the opening of the drain valve 141 to accelerate the discharge of the mother liquor. When the liquid level information received by the controller 7 from the second liquid level sensor 160 is less than the second preset liquid level, the controller 7 increases the opening of the feed valve 131. Simultaneously, a timer for periodically cleaning the filter cartridge 4 is set. The controller 7 periodically shuts down the motor 3, feed valve 131, and drain valve 141 to clean the filter cartridge 4, discharging the indigo solid particles. This improves the ease of operation of the device and further enhances the efficiency of solid-liquid separation.

[0045] The technical solution of this application will be illustrated in detail below with specific embodiments.

[0046] The solid-liquid separation device for indigo production in this embodiment operates as follows: The controller 7 opens the feed valve 131 and the drain valve 141, and starts the motor 3. The reaction slurry containing indigo in the slurry tank is pumped through the slurry delivery pipe 6 into the tank 1 for solid-liquid separation. The motor 3 provides power for the solid-liquid separation, driving the drive shaft 310 to rotate. The drive shaft 310 drives the main gear 311 to rotate, which in turn drives multiple driven gears 321 meshing with it, thereby driving multiple driven shafts 320 to rotate. Each driven shaft 320 has a tray 330 fixedly connected to its top. The tray 330 is detachably connected to the bottom of the filter cartridge 4. Therefore, the rotation of the driven shafts 320 drives the tray 330 to rotate, which in turn drives the filter cartridge 4 to rotate. The filter cartridge 4 has evenly spaced holes on its side wall. As the filter cartridge 4 rotates, the mother liquor containing indigo in the filter cartridge 4 is thrown out through the holes under centrifugal force, while the indigo particles remain inside the filter cartridge 4, achieving solid-liquid separation of indigo and mother liquor.

[0047] The mother liquor obtained during the solid-liquid separation process is in the separation chamber 110, and at the same time, the mother liquor in the separation chamber 110 is discharged in a timely manner through the drain pipe 140.

[0048] During the separation process, the indigo solids inside the filter cartridge 4 need to be periodically discharged. A set time is set for periodically cleaning the filter cartridge 4. Based on this time, the controller 7 periodically shuts off the motor 3, the feed valve 131, and the drain valve 141, opens the sealing door 150, separates the filter cartridge 4 from the tray 330, and removes it from the housing 1. After removing the indigo solids from the filter cartridge 4 (i.e., cleaning the filter cartridge 4), the protrusion 410 is inserted into the groove 331 to complete the installation of the filter cartridge 4 and the tray 330. The motor 3 is then restarted, and the feed valve 131 and drain valve 141 are opened to continue the solid-liquid separation.

[0049] When the liquid level information received by the controller 7 from the first liquid level sensor 420 is greater than or equal to the first preset liquid level, the controller 7 closes the feed valve 131. When the liquid level information received by the controller 7 from the first liquid level sensor 420 is less than the first preset liquid level, the controller 7 opens the feed valve 131. When the liquid level information received by the controller 7 from the second liquid level sensor 160 is greater than or equal to the second preset liquid level, the controller 7 closes the feed valve 131 and increases the opening of the drain valve 141 to accelerate the discharge of the mother liquor. When the liquid level information received by the controller 7 from the second liquid level sensor 160 is less than the second preset liquid level, the controller 7 increases the opening of the feed valve 131.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A solid-liquid separation device for indigo production, characterized by, include: The box (1) has a partition (2) in the lower part of the box (1), which divides the interior of the box (1) into a separation chamber (110) and a power chamber (120). A motor (3) is provided at the bottom of the housing (1). The output end of the motor (3) is fixedly connected to the drive shaft (310). The drive shaft (310) extends vertically into the power chamber (120). A main gear (311) is provided outside the drive shaft (310) at a position inside the power chamber (120). Multiple driven shafts (320) are symmetrically arranged about the center of the drive shaft (310) inside the power chamber (120). A driven gear (321) is fixedly provided on the multiple driven shafts (320). The main gear (311) meshes with the driven gear (321). Multiple driven shafts (320) pass through the partition (2) vertically and extend into the separation chamber (110). The top of each driven shaft (320) is fixedly connected to a tray (330). The separation chamber (110) is provided with multiple filter cartridges (4) corresponding to the number of trays (330). The trays (330) and the bottom of the filter cartridges (4) are detachably connected. The top of the box (1) is provided with multiple feed inlets (130), and the multiple feed inlets (130) are respectively located directly above the multiple filter cartridges (4). The side wall of the box (1) is connected to a drain pipe (140), and a sealing door (150) is installed on the side of the box (1) opposite to the drain pipe (140).

2. The solid-liquid separation device for indigo production according to claim 1, characterized by, The tray (330) is a column with height. A groove (331) is provided in the center of the tray (330). A protrusion (410) is fixedly provided in the center of the bottom of the filter cartridge (4). The protrusion (410) is inserted into the groove (331).

3. The solid-liquid separation device for indigo production according to claim 2, characterized by, The outer surfaces of the protrusion (410) and the groove (331) are non-cylindrical.

4. The solid-liquid separation device for indigo production according to claim 1, characterized by, The separation chamber (110) is also provided with a limiting unit, which includes a fixing rod (510) and a limiting ring (520). One end of the fixing rod (510) is connected to the side wall of the box (1), and the other end of the fixing rod (510) is connected to the outside of the limiting ring (520). The limiting ring (520) is sleeved on the outside of the filter cartridge (4).

5. The solid-liquid separation device for indigo production according to claim 4, characterized by The distance between the inner side of the limiting ring (520) and the outer side of the filter cartridge (4) is 2-5 cm.

6. The solid-liquid separation device for indigo production according to any one of claims 1 to 5, characterized by, The multiple feed inlets (130) are connected to the slurry conveying pipe (6), and the multiple feed inlets (130) are provided with feed valves (131), and the drain pipe (140) is provided with drain valves (141).

7. The solid-liquid separation device for indigo production according to claim 6, characterized by The filter cartridge (4) is equipped with a first liquid level sensor (420), and the separation chamber (110) is equipped with a second liquid level sensor (160).

8. The solid-liquid separation device for indigo production according to claim 7, characterized by The controller (7) is arranged outside the box (1) and is electrically connected with the feeding valve (131), the liquid discharge valve (141), the first liquid level sensor (420), the second liquid level sensor (160) and the motor (3) respectively.

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