Recrystallization separation refining equipment with accurate feeding function

Abstract

The utility model relates to the technical field of recrystallization equipment, in particular to accurate feeding recrystallization separation refining equipment, which comprises a separation tank, a feeding device, a feeding device and a discharging device, the surface of the separation tank is fixedly connected with a protective shell, and the protective shell extends to the upper end of the separation tank; the feeding mechanism is mounted in the protective shell, and the surface of the feeding mechanism extends to the outside of the protective shell; wherein the feeding mechanism comprises a quantifying assembly fixedly connected to the inner wall of the protective shell, and the upper end of the quantifying assembly communicates with a material guiding circular pipe; according to the device, liquid in a quantitative assembly is guided into a material injection pipe through a material injection thin pipe, a servo motor is driven to drive a threaded rod to rotate, a guide rod drives a movable piston to move longitudinally, the liquid in the material injection pipe is injected into a separation tank, and the precise feeding effect is guaranteed; and the article yield is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of recrystallization equipment, in particular to a recrystallization separation and purification equipment with accurate feeding. Background Art

[0002] Recrystallization separation and purification equipment is a key equipment for purifying sulfonamide compounds. This equipment can effectively separate sulfonamide compounds from the mixture and improve their purity through the recrystallization process. The recrystallization process is a process in which crystals are dissolved in a solvent or melted and then re-crystallized from the solution or melt, also known as recrystallization;

[0003] After searching the prior art for "a recrystallization solid-liquid separation device", the announcement number is "CN215691796U". This device greatly reduces manual labor intensity, saves working time, reduces environmental hazards to operators, and is conducive to improving efficiency; however, during the feeding operation of this device, since the input material is liquid, the material introduction is not accurate enough, which affects the yield of the separation equipment.

[0004] Therefore, a recrystallization separation and purification equipment with precise feeding is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the present invention is to provide a recrystallization separation and refining equipment with accurate feeding in order to solve the above problems, thereby improving the problem that the finished product rate of the separation equipment is affected by the inaccurate introduction of liquid materials.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions, a recrystallization separation and refining equipment with precise feeding, comprising: a separation tank, the surface of the separation tank is fixedly connected to a protective shell, and the protective shell extends to the upper end of the separation tank; a feeding mechanism, the feeding mechanism is installed inside the protective shell, and the surface of the feeding mechanism extends to the outside of the protective shell; wherein, the feeding mechanism includes a quantitative component fixedly connected to the inner wall of the protective shell, the upper end of the quantitative component is connected to a material guide tube, the upper end of the material guide tube passes through the top of the protective shell, the quantitative component is provided with an injection component on the surface away from the material guide tube, the upper end of the injection component is provided with a servo motor, the servo motor is fixedly connected to the upper end of the protective shell, and the output shaft of the servo motor passes through the interior of the protective shell.

[0007] Preferably, the injection assembly includes an injection tube fixedly connected to the inner wall of the protective shell, the lower end of the injection tube is communicated with the surface of the separation tank, the surface of the injection tube is communicated with a capillary injection tube fixedly connected, a one-way valve fixedly connected to the inner wall of the injection tube is provided below the capillary injection tube, and a movable piston slidably connected to the inner wall of the injection tube is provided above the one-way valve. The device can inject the liquid inside the injection tube into the separation tank by sliding the movable piston on the inner wall of the injection tube, wherein when the movable piston moves downward, the one-way valve maintains a flow state, and when the movable piston moves upward, the one-way valve is in a blocked state, wherein when the movable piston moves upward, the liquid inside the quantitative assembly is introduced into the injection tube through the injection capillary injection.

[0008] Preferably, the quantitative component includes a quantitative water tank fixedly connected to the inner wall of the protective shell, the upper end of the quantitative water tank is connected to the lower end of the material guide tube, the inner wall of the quantitative water tank is fixedly connected to an electric push rod, the telescopic end of the electric push rod is fixedly connected to a moving rod, the inner wall of the quantitative water tank is fixedly connected to two closed cylinders, the ends of the closed cylinders away from the moving rods are fixedly connected to liquid guide tubes, the electric push rod is driven to make the ends of the moving rods move inside the adjacent closed cylinders, and the internal pressures of the two closed cylinders change inversely at the same time, so that while the internal pressure of the liquid guide tube at one end increases, the internal pressure of the liquid guide tube at the other end decreases.

[0009] Preferably, the upper end of the movable piston is fixedly connected to a guide rod, the upper end of the inner wall of the injection tube is fixedly connected to a positioning frame, and the guide rod is slidably connected to the inner wall of the positioning frame, wherein the positioning frame can cooperate with the guide rod to keep the movable piston in a vertical moving state.

[0010] Preferably, the other end of the liquid guide tube is provided with a sealing plug, which is slidably connected to the inner wall of the liquid guide tube. A circular tube is provided on the surface of the sealing plug on one side, and the circular tube is fixedly connected to the inner bottom wall of the quantitative water tank. When the internal pressure of the liquid guide tube at one end increases, the sealing plug at one end moves downward. At the same time, when the internal pressure of the liquid guide tube at the other end increases, the sealing plug at the other end moves downward. Since a leakage groove is provided on the surface of the circular tube, when the sealing plug at one end moves upward, the liquid inside the quantitative water tank can be introduced into the injection tube.

[0011] Preferably, the upper end of the guide rod is fixedly connected to a threaded sleeve, the inner wall of the threaded sleeve is threadedly connected to a threaded rod, and the threaded rod is fixedly connected to the output shaft of the servo motor. The servo motor drives the threaded rod to rotate and drive the threaded rod to rotate accordingly. At this time, the guide rod is used to resist the moving piston for longitudinal movement.

[0012] Preferably, both ends of the moving rod are fixedly connected with rubber plugs, and the rubber plugs are slidably connected to the inner wall of the adjacent closed cylinder. When the moving rod moves horizontally, the rubber plugs slide inside the adjacent closed cylinder, changing the pressure inside the closed cylinder.

[0013] The beneficial effects of the utility model are:

[0014] 1. The above-mentioned precise feeding recrystallization separation and refining equipment can achieve a precise feeding effect on the amount of injected liquid under the action of the feeding mechanism. The device introduces the liquid inside the quantitative component into the feeding pipe through the feeding capillary, drives the servo motor to drive the threaded rod to rotate, and makes the guide rod drive the movable piston to move longitudinally, injecting the liquid inside the feeding pipe into the separation tank, ensuring the precise feeding effect and the finished product rate of the product.

[0015] 2. By setting up the injection assembly, the device can drive the electric push rod to move the end of the moving rod inside the adjacent closed cylinders under the action of the injection assembly. The internal pressures of the two closed cylinders change inversely at the same time, achieving the effect of initial quantitative injection of the liquid into the injection pipe, improving the accuracy of feeding and ensuring the finished product rate of the items. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a schematic structural diagram of the feeding mechanism of the present utility model;

[0018] Figure 3 This is a schematic diagram of the position of the injection pipe of the utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the quantitative water tank of the present utility model;

[0020] Figure 5 This is an exploded cross-sectional view of the injection assembly of the present utility model;

[0021] Figure 6 This is an exploded cross-sectional view of the quantitative component of the present utility model.

[0022] In the figure: 1. Separation tank; 2. Protective shell; 3. Feeding mechanism; 31. Servo motor; 32. Injection assembly; 321. Injection pipe; 322. Injection capillary; 323. One-way valve; 324. Positioning frame; 325. Moving piston; 326. Guide rod; 327. Threaded rod; 33. Dosing assembly; 331. Dosing water tank; 332. Electric push rod; 333. Moving rod; 334. Rubber plug; 335. Sealed cylinder; 336. Liquid guide tube; 337. Sealing plug; 338. Round tube; 34. Material guide round tube. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] When implementing: Figure 1-6 As shown, a recrystallization separation and refining equipment with precise feeding includes: a separation tank 1, a protective shell 2 is fixedly connected to the surface of the separation tank 1, and the protective shell 2 extends to the upper end of the separation tank 1; a feeding mechanism 3, the feeding mechanism 3 is installed inside the protective shell 2, and the surface of the feeding mechanism 3 extends to the outside of the protective shell 2; wherein, the feeding mechanism 3 includes a quantitative component 33 fixedly connected to the inner wall of the protective shell 2, the upper end of the quantitative component 33 is connected to a material guide tube 34, and the upper end of the material guide tube 34 passes through the top of the protective shell 2, and the surface of the quantitative component 33 away from the material guide tube 34 is provided with an injection component 32, and the upper end of the injection component 32 is provided with a servo motor 31, the servo motor 31 is fixedly connected to the upper end of the protective shell 2, and the output shaft of the servo motor 31 passes through the interior of the protective shell 2;

[0025] like Figure 1-Figure 5 As shown, the injection assembly 32 includes an injection tube 321 fixedly connected to the inner wall of the protective shell 2, the lower end of the injection tube 321 is communicated with the surface of the separation tank 1, the surface of the injection tube 321 is communicated with a fixed injection tube 322, a one-way valve 323 fixedly connected to the inner wall of the injection tube 321 is provided below the injection tube 322, a movable piston 325 slidably connected to the inner wall of the injection tube 321 is provided above the one-way valve 323, the upper end of the movable piston 325 is fixedly connected to the guide rod 326, the upper end of the inner wall of the injection tube 321 is fixedly connected to the positioning frame 324, the guide rod 326 is slidably connected to the inner wall of the positioning frame 324, the upper end of the guide rod 326 is fixedly connected to a threaded sleeve, the inner wall of the threaded sleeve is threadedly connected to a threaded rod 327, and the threaded rod 327 is fixedly connected to the output shaft of the servo motor 31;

[0026] The device can inject the liquid inside the injection tube 321 into the separation tank 1 by sliding the movable piston 325 on the inner wall of the injection tube 321. When the movable piston 325 moves downward, the one-way valve 323 maintains a flow state. When the movable piston 325 moves upward, the one-way valve 323 is in a blocked state. When the movable piston 325 moves upward, the liquid inside the quantitative component 33 is introduced into the injection tube 321 through the injection tube 322. The positioning frame 324 can cooperate with the guide rod 326 to keep the movable piston 325 in a vertical movement state. The servo motor 31 drives the threaded rod 327 to rotate accordingly. At this time, the movable piston 325 moves longitudinally through the contact between the guide rod 326 and the movable piston 325.

[0027] like Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, the quantitative component 33 includes a quantitative water tank 331 fixedly connected to the inner wall of the protective shell 2, the upper end of the quantitative water tank 331 is communicated with the lower end of the material guide tube 34, the inner wall of the quantitative water tank 331 is fixedly connected to an electric push rod 332, the telescopic end of the electric push rod 332 is fixedly connected to a moving rod 333, the inner wall of the quantitative water tank 331 is fixedly connected to two sealed cylinders 335, the end of the sealed cylinder 335 away from the moving rod 333 is fixedly connected to a liquid guide tube 336, the other end of the liquid guide tube 336 is provided with a sealing plug 337, the sealing plug 337 is slidably connected to the inner wall of the liquid guide tube 336, the surface of one side of the sealing plug 337 is provided with a circular tube 338, the circular tube 338 is fixedly connected to the inner bottom wall of the quantitative water tank 331, and both ends of the moving rod 333 are fixedly connected to rubber plugs 334, which are slidably connected to the inner wall of the adjacent sealed cylinder 335;

[0028] The electric push rod 332 is driven to move the end of the moving rod 333 inside the adjacent closed cylinder 335. The internal pressures of the two closed cylinders 335 change inversely at the same time, so that the internal pressure of the liquid guide tube 336 at one end increases while the internal pressure of the liquid guide tube 336 at the other end decreases. When the internal pressure of the liquid guide tube 336 at one end increases, the sealing plug 337 at one end moves downward. At the same time, when the internal pressure of the liquid guide tube 336 at the other end increases, the sealing plug 337 at the other end moves downward. Since a leakage groove is provided on the surface of the circular tube 338, when the sealing plug 337 at one end moves upward, the liquid inside the quantitative water tank 331 can be introduced into the injection tube 321. When the moving rod 333 moves horizontally, the rubber plug 334 slides inside the adjacent closed cylinder 335, thereby changing the pressure inside the closed cylinder 335.

[0029] When the present invention is in use, the servo motor 31 is driven to drive the threaded rod 327 to rotate, and the guide rod 326 drives the movable piston 325 to move longitudinally, and the liquid inside the injection tube 321 is injected into the separation tank 1, wherein when the movable piston 325 moves downward, the one-way valve 323 maintains a flow state, and when the movable piston 325 moves upward, the one-way valve 323 is in a blocked state, wherein when the movable piston 325 moves upward, the liquid inside the quantitative component 33 is introduced into the injection tube 321 through the injection tube 322, and the electric push rod 332 is driven to make the end of the movable rod 333 move inside the adjacent closed cylinder 335, and the internal pressures of the two closed cylinders 335 change inversely at the same time. When the movable rod 333 moves horizontally, the rubber stopper 334 slides inside the adjacent closed cylinder 335, changing the pressure inside the closed cylinder 335.

[0030] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A recrystallization separation and purification equipment with precise feeding, characterized in that: include: A separation tank (1), wherein a protective shell (2) is fixedly connected to the surface of the separation tank (1), and the protective shell (2) extends to the upper end of the separation tank (1); A feeding mechanism (3), the feeding mechanism (3) being installed inside the protective shell (2), and the surface of the feeding mechanism (3) extending to the outside of the protective shell (2); The feeding mechanism (3) comprises a quantitative component (33) fixedly connected to the inner wall of the protective shell (2); the upper end of the quantitative component (33) is connected to a material guide tube (34); the upper end of the material guide tube (34) passes through the upper part of the protective shell (2); a material injection component (32) is provided on the surface of the quantitative component (33) away from the material guide tube (34); a servo motor (31) is provided at the upper end of the material injection component (32); the servo motor (31) is fixedly connected to the upper end of the protective shell (2); and the output shaft of the servo motor (31) passes through the interior of the protective shell (2).

2. The recrystallization separation and purification equipment with precise feeding according to claim 1, characterized in that: The injection assembly (32) includes an injection tube (321) fixedly connected to the inner wall of the protective shell (2), the lower end of the injection tube (321) is connected to the surface of the separation tank (1), the surface of the injection tube (321) is connected to a fixed injection tube (322), a one-way valve (323) fixedly connected to the inner wall of the injection tube (321) is provided below the one-way valve (323), and a movable piston (325) slidably connected to the inner wall of the injection tube (321) is provided above the one-way valve (323).

3. The recrystallization separation and purification equipment with accurate feeding according to claim 2, characterized in that: The quantitative component (33) comprises a quantitative water tank (331) fixedly connected to the inner wall of the protective shell (2); the upper end of the quantitative water tank (331) is communicated with the lower end of the material guide tube (34); the inner wall of the quantitative water tank (331) is fixedly connected to an electric push rod (332); the telescopic end of the electric push rod (332) is fixedly connected to a moving rod (333); the inner wall of the quantitative water tank (331) is fixedly connected to two sealed cylinders (335); the end of the sealed cylinder (335) away from the moving rod (333) is fixedly connected to a liquid guide tube (336).

4. The recrystallization separation and purification equipment with accurate feeding according to claim 2, characterized in that: The upper end of the movable piston (325) is fixedly connected to a guide rod (326), the upper end of the inner wall of the injection tube (321) is fixedly connected to a positioning frame (324), and the guide rod (326) is slidably connected to the inner wall of the positioning frame (324).

5. The recrystallization separation and purification equipment with accurate feeding according to claim 3, characterized in that: The other end of the liquid guiding tube (336) is provided with a sealing plug (337), and the sealing plug (337) is slidably connected to the inner wall of the liquid guiding tube (336). A circular tube (338) is sleeved on the surface of the sealing plug (337) on one side, and the circular tube (338) is fixedly connected to the inner bottom wall of the quantitative water tank (331).

6. The recrystallization separation and purification equipment with accurate feeding according to claim 4, characterized in that: The upper end of the guide rod (326) is fixedly connected to a threaded sleeve, the inner wall of the threaded sleeve is threadedly connected to a threaded rod (327), and the threaded rod (327) is fixedly connected to the output shaft of the servo motor (31).

7. The recrystallization separation and purification equipment with accurate feeding according to claim 5, characterized in that: Both ends of the moving rod (333) are fixedly connected with rubber plugs (334), and the rubber plugs (334) are slidably connected to the inner wall of the adjacent closed cylinder (335).

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