Crystallizing tank convenient to clean

Abstract

The utility model discloses a crystallizing tank convenient to clean, which comprises a tank body, a plurality of connecting rods and a plurality of connecting rods, the jacket is provided with a liquid inlet and a liquid outlet and is arranged outside the tank body, and an inner cavity of the jacket is communicated with an inner cavity of the convex shoulder; the central shaft is provided with a cavity, an outer shaft is sleeved outside the central shaft, and the bottom of the cavity of the central shaft is communicated with the cavity of the outer shaft; the top end of the center shaft penetrates out of the outer shaft to be in transmission connection with a first motor, and the top end of the center shaft is connected with a liquid inlet pipe. A third scraping strip is arranged at the bottom of the central shaft; the cleaning assembly comprises a rotating ring capable of rotating around the outer shaft, a first scraping strip making contact with the outer wall of the protruding shoulder, a second scraping strip making contact with the peripheral wall of the outer shaft and a connecting rod connecting the first scraping strip and the second scraping strip, and the connecting rod is connected with the rotating ring through a vertical rod. The utility model provides a crystallizing tank convenient to clean, which has a good crystallizing effect and is convenient to clean.

Description

Technical Field

[0001] The utility model relates to the technical field of crystallization, in particular to a crystallization tank which is easy to clean. Background Art

[0002] Crystallization refers to the process of crystal formation in a solution. It utilizes the relationship between the solubility of a solid product in a solvent and temperature. Different substances have different solubilities in the same solvent, so the product can be separated and purified from other impurities. Crystallization is widely used in the fields of pharmaceuticals, food, etc.

[0003] At present, crystallization operations are generally performed using a crystallization tank, and the existing crystallization tank is generally provided with a jacket on the outer wall, and cooling or heating is performed by passing a cooling fluid or a heating fluid into the jacket, so that the crystals in the tank body are easily precipitated. However, since the jacket is used to cool or heat the outer wall of the tank body from the outside of the tank body, it is easy to cause the cooling or heating rate of the center of the tank body to be slow, and the cooling or heating rate near the tank body wall to be fast, resulting in uneven cooling or heating effects, resulting in poor cooling or heating effects, affecting crystallization efficiency, and affecting product quality; and crystals are easy to adhere to the inner wall of the tank body, which is not convenient to clean and discharge on the one hand, and needs to be cleaned manually, and on the other hand, it is easy to affect the heating or cooling rate of the tank body by the fluid in the jacket. Utility Model Content

[0004] An object of the present invention is to solve at least the above problems and / or disadvantages and to provide at least the advantages to be described below.

[0005] In order to solve the deficiencies of the prior art, the utility model provides a crystallization tank that is easy to clean, comprising:

[0006] The inner wall of the tank body is provided with a plurality of convex shoulders protruding from top to bottom toward the inside of the tank body; the top of the tank body is provided with a feed pipe, and the bottom of the tank body is provided with a discharge pipe;

[0007] A jacket having a liquid inlet and a liquid outlet, arranged outside the tank body, and an inner cavity of the jacket is communicated with an inner cavity of the boss;

[0008] A central shaft having a cavity, an outer shaft is disposed on the outer sleeve, and the bottom of the cavity of the central shaft is communicated with the cavity of the outer shaft; the top end of the outer shaft extends out of the tank body and is connected to the discharge pipe, the top end of the central shaft passes through the outer shaft and is transmission-connected to the first motor, and the top end of the central shaft is connected to the liquid inlet pipe; the bottom of the central shaft is provided with a third scraper in contact with the bottom wall of the tank body;

[0009] The cleaning assembly includes a swivel ring rotatable around the outer shaft, a first scraper bar in contact with the outer wall of the boss, a second scraper bar in contact with the outer peripheral wall of the outer shaft, and a connecting rod connecting the first scraper bar and the second scraper bar, wherein the connecting rod is connected to the swivel ring through a vertical rod.

[0010] Furthermore, the liquid inlet is arranged at the bottom of the jacket, and the liquid outlet is arranged at the top of the jacket.

[0011] Furthermore, the top surface and bottom surface of the boss are respectively a first drainage surface and a second drainage surface, the first drainage surface gradually slopes downward from outside the tank body to inside the tank body, and the second drainage surface gradually slopes downward from inside the tank body to outside the tank body.

[0012] More preferably, the boss is provided with a material drop groove to allow the crystallized material on the boss to drop smoothly.

[0013] Furthermore, the first scraper strip is in a bent shape that contacts the first drainage surface and the second drainage surface of the boss.

[0014] Furthermore, a rotatable conveying auger is arranged in the discharge pipe, and the top end of the conveying auger is connected to the bottom end of the central shaft.

[0015] Furthermore, a first gear is coaxially fixed to the upper portion of the central shaft, and a second gear meshingly connected to the first bevel gear is fixed to the output end of the first motor.

[0016] Furthermore, the top of the rotating ring is rotatably mounted on the top wall inside the tank body, a gear ring is provided on the outer peripheral wall of the rotating ring, the gear ring is meshedly connected with a transmission gear, and the transmission gear is transmission-connected to a second motor mounted on the outer top surface of the tank body.

[0017] Furthermore, an annular partition is provided on the circumferential wall of the upper part of the tank body, the inner ring of the partition and the outer wall of the rotating ring are rotatably arranged, and the partition is located below the transmission gear.

[0018] The utility model includes at least the following beneficial effects: the tank body is used to contain the material solution and thus provide a crystallization site, the jacket is used to pass the heating or cooling fluid, the inner cavity of the boss is connected with the inner cavity of the jacket, so that the fluid can enter the boss, thereby increasing the contact area between the fluid and the tank body and improving the cooling or heating efficiency. At the same time, the central axis and the outer axis are located at the center of the tank body, and the fluid flows in through the central axis and then enters the bottom of the outer axis and is discharged through the drain pipe at the top of the outer axis. During the flow of the fluid, the material liquid near the center of the tank body is heated or cooled, so that the inside and outside of the tank body are heated or cooled, which improves the uniformity of heating and cooling of the material liquid inside the tank body, so that the material liquid is fully cooled or cooled, thereby accelerating the crystallization rate and enhancing the quality of the crystallized product. In addition, the cleaning component can scrape and clean the crystals adhering to the peripheral wall of the tank body and the outer wall of the outer axis, and the rotation of the rotating ring drives the first The first scraper and the second scraper rotate around the outer shaft. During this process, the first scraper scrapes and cleans the crystals on the inner wall of the tank body and the outer wall of the shoulder, and the second scraper scrapes and cleans the crystals on the outer wall of the outer shaft. The cleaning and scraping operation is simple, so it is easy to discharge the crystals without manual cleaning, avoiding waste of resources, and facilitating subsequent batches of crystallization to avoid excessive attachment of crystals and affecting the heating or cooling of the fluid to the slurry. At the same time, the first scraper, the second scraper, the connecting rod and the vertical rod can stir the slurry during rotation to further accelerate the crystallization speed; the rotatable setting of the central shaft allows the central shaft to drive the third scraper to scrape and clean the crystals on the bottom wall of the tank body. The rotation of the central shaft and the rotation of the rotating ring are separately set, so that during the crystallization process, the central shaft does not rotate and the third scraper does not rotate, thereby avoiding damage to the crystals at the bottom of the tank body when the third scraper rotates.

[0019] By adopting the utility model, the central shaft, the outer shaft, the jacket and the boss cooperate with each other to cool or heat the liquid inside the tank body, so that the cooling or heating effect of the liquid is uniform, and the crystallization efficiency is effectively improved; at the same time, the rotating ring drives the first scraper and the second scraper to scrape and clean the inner wall of the tank body and the outer wall of the outer shaft, and the central shaft drives the third scraper to clean and scrape the bottom wall of the tank body, thereby realizing the cleaning of the inside of the tank body, saving labor, and ensuring the subsequent crystallization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a crystallization tank that is easy to clean according to the utility model.

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the tank body of the utility model.

[0022] Figure 3 The utility model Figure 2 Schematic diagram of the locally enlarged structure of A in the middle.

[0023] Figure 4It is a structural schematic diagram of the boss of the utility model.

[0024] Figure markings: 100-tank body, 110-shoulder, 111-first drainage surface, 112-second drainage surface, 113-dropping trough, 120-feed pipe, 130-discharge pipe, 200-jacket, 210-liquid inlet, 220-liquid outlet, 300-central axis, 310-liquid inlet pipe, 320-third scraper, 330-through hole, 400-outer axis, 410-discharge pipe, 500-first motor, 510-first gear, 520-second gear, 600-cleaning assembly, 610-swivel, 620-first scraper, 630-second scraper, 640-connecting rod, 650-vertical rod, 700-conveying auger, 800-gear ring, 810-transmission gear, 820-second motor, 900-partition. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0026] It should be understood that terms such as “having”, “including” and “comprising” used herein do not specify the existence or addition of one or more other elements or combinations thereof.

[0027] See also Figures 1 to 4 , a crystallization tank that is easy to clean, comprising:

[0028] The tank body 100 has a plurality of bosses 110 protruding from top to bottom on its inner wall. The tank body 100 is used to contain the material solution and provide a crystallization site. The tank body 100 is cylindrical. The top of the tank body 100 has a feed pipe 120, and the bottom of the tank body 100 has a discharge pipe 130. The feed pipe 120 is used to feed the material solution into the tank body 100.

[0029] A jacket 200 having a liquid inlet 210 and a liquid outlet 220 is arranged outside the tank body 100. The jacket 200 is used to pass a heating or cooling fluid, and the inner cavity of the jacket 200 is communicated with the inner cavity of the boss 110. The liquid inlet 210 and the liquid outlet 220 are preferably in the shape of circular holes. Preferably, the liquid inlet 210 is arranged at the bottom of the jacket 200, and the liquid outlet 220 is arranged at the top of the jacket 200. According to actual conditions, a hot fluid or a cooling fluid is selected, the liquid inlet 210 is connected to a fluid pipeline, and the liquid outlet 220 is connected to another fluid pipeline to collect the fluid for centralized recycling, thereby saving resources.

[0030] A central shaft 300 having a cavity is provided with an outer shaft 400 on its outer sleeve, and the bottom of the cavity of the central shaft 300 is connected with the cavity of the outer shaft 400. It is understandable that the bottom of the cavity of the central shaft 300 is connected with the cavity of the outer shaft 400 through a plurality of through holes 330. It is worth noting that the two ends of the central shaft 300 are rotatable with the outer shaft 400 through sealed bearings, respectively. The sealed bearings are products of the prior art and can prevent the fluid from flowing out of the outer shaft 400 into the tank body 100; the top end of the outer shaft 400 extends out of the tank body 100 and is connected with the drain pipe 410, the top end of the central shaft 300 passes through the outer shaft 400 and is transmission-connected with the first motor 500, and the top end of the central shaft 300 is connected with the liquid inlet pipe 310. It is understandable that the central shaft 300 can be connected with the liquid inlet pipe 310 through a rotary joint, and the rotary joint is a product of the prior art; the bottom of the central shaft 300 is provided with a third scraper 320 in contact with the bottom wall of the tank body 100;

[0031] The cleaning assembly 600 includes a swivel ring 610 rotatable around the outer shaft 400, a first scraper strip 620 in contact with the outer wall of the boss 110, a second scraper strip 630 in contact with the outer peripheral wall of the outer shaft 400, and a connecting rod 640 connecting the first scraper strip 620 and the second scraper strip 630, wherein the connecting rod 640 is connected to the swivel ring 610 via a vertical rod 650.

[0032] Specifically, the inner cavity of the boss 110 is connected to the inner cavity of the jacket 200, so that the fluid can enter the boss 110, thereby increasing the contact area between the fluid and the tank body 100 and improving the cooling or heating efficiency. At the same time, the central axis 300 and the outer axis 400 are located at the center of the tank body. The fluid flows in through the central axis 300 and then enters the bottom of the outer axis 400 and then is discharged through the drain pipe 410 at the top of the outer axis 400. During the flow of the fluid, the liquid near the center of the tank body 100 is heated or cooled. , so that the inside and outside of the tank body 100 are heated or cooled, the uniformity of heating and cooling of the liquid inside the tank body 100 is improved, so that the liquid is fully cooled or cooled, thereby accelerating the crystallization rate and enhancing the quality of the crystallized product; in addition, the cleaning component 600 can scrape and clean the crystals adhering to the peripheral wall of the tank body 100 and the outer wall of the outer shaft 400, and the rotation of the rotating ring 610 drives the first scraper 620 and the second scraper 630 to rotate around the outer shaft 400. In this process, the first scraper The first scraper 620 scrapes and cleans the crystals on the inner wall of the tank body 100 and the outer wall of the boss 110, and the second scraper 630 scrapes and cleans the crystals on the outer wall of the outer shaft 400. The cleaning and scraping operation is simple, so it is easy to discharge the crystals, and no manual cleaning is required to avoid waste of resources. At the same time, it is convenient to carry out subsequent batches of crystallization operations, and avoid excessive attachment of crystals to affect the heating or cooling of the fluid to the liquid. At the same time, the first scraper 620, the second scraper 630, the connecting rod 640 and the vertical rod 650 can stir the liquid during the rotation process to further accelerate the crystallization speed; the central shaft 300 is rotatably arranged, so that the central shaft 300 can drive the third scraper 320 to scrape and clean the crystals on the bottom wall of the tank body 100. The rotation of the central shaft 300 and the rotation of the rotating ring 610 are separately arranged, so that during the crystallization process, the rotating ring 610 rotates, the central shaft 300 does not rotate, and the third scraper 320 does not rotate, thereby avoiding the third scraper 320 from damaging the crystals at the bottom of the tank body 100 when the third scraper 320 rotates.

[0033] Based on the above, in some embodiments, the top surface and the bottom surface of the shoulder 110 are respectively a first drainage surface 111 and a second drainage surface 112, the first drainage surface 111 gradually tilts downward from the outside of the tank body 100 to the inside of the tank body 100, and the second drainage surface 112 gradually tilts downward from the inside of the tank body 100 to the outside of the tank body 100, and the first drainage surface 111 and the second drainage surface 112 are arranged to facilitate the falling of the crystallized material, and further enhance the contact area between the fluid and the inside of the tank body 100;

[0034] More preferably, referring to the attached Figure 4 The boss 110 is provided with a material drop groove 113 to allow the crystallized material on the boss 110 to fall smoothly, thereby avoiding the accumulation of crystals on the first drainage surface 111 .

[0035] Furthermore, the first scraper strip 620 is in a bent shape that contacts the first drainage surface 111 and the second drainage surface 112 of the boss 110. It can be understood that the first scraper strip 620 is in a bent shape, thereby fully contacting the inner wall of the tank body 100, the first drainage surface 111, and the second drainage surface 112, thereby performing a sufficient cleaning operation.

[0036] During actual use, since the crystals are concentrated at the bottom of the tank body 100, it is easy to form a blockage in the discharge pipe 130 when discharging the crystals. In order to avoid blockage, a rotatable conveying auger 700 is arranged in the discharge pipe 130, and the top end of the conveying auger 700 is connected to the bottom end of the central axis 300. The setting of the conveying auger 700 is conducive to discharge and can effectively avoid blockage during discharge. The top end of the conveying auger 700 and the bottom end of the central axis 300 can be welded or fixed by bolts.

[0037] The first motor 500 is a product of the prior art. A first gear 510 is coaxially fixed to the upper part of the central shaft 300. A second gear 520 meshingly connected to the first gear 510 is fixed to the output end of the first motor 500. When material discharge is required, the first motor 500 is turned on, and the first motor 500 drives the second gear 520 to rotate. Since the second gear 520 is meshingly connected to the first gear 510, the first gear 510 rotates, thereby driving the central shaft 300 to rotate.

[0038] Based on the above, in some instances, the top of the rotating ring 610 is rotatably mounted on the inner top wall of the tank body 100, and a ring gear 800 is provided on the outer peripheral wall of the rotating ring 610, and the ring gear 800 is meshedly connected with the transmission gear 810, and the transmission gear 810 is transmission-connected to the second motor 820 mounted on the outer top surface of the tank body 100. When in use, the second motor 820 drives the transmission gear 810 to rotate, and the transmission gear 810 causes the ring gear 800 to rotate, and the ring gear 800 drives the rotating ring 610 to rotate. The second motor 820 is a prior art product, and the transmission installation method between the second motor 820 and the transmission gear 810 is well known to those skilled in the art and will not be repeated here.

[0039] Furthermore, an annular partition 900 is provided on the upper circumferential wall of the tank body 100, and the inner ring of the partition 900 and the outer wall of the rotating ring 610 are rotatably arranged, and the partition 900 is located below the transmission gear 810. The setting of the partition 900 is conducive to separating the transmission gear 810 and protecting the transmission gear 810 and the ring gear 800.

[0040] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation scheme. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described here. Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention.

Claims

1. A crystallization tank that is easy to clean, characterized in that: include: The inner wall of the tank body (100) is provided with a plurality of bosses (110) protruding from top to bottom toward the inside of the tank body (100); the top of the tank body (100) is provided with a feed pipe (120), and the bottom of the tank body (100) is provided with a discharge pipe (130); A jacket (200) having a liquid inlet (210) and a liquid outlet (220), arranged outside the tank body (100), and an inner cavity of the jacket (200) communicating with an inner cavity of the boss (110); A central shaft (300) having a cavity, an outer shaft (400) being provided on its outer sleeve, and the bottom of the cavity of the central shaft (300) being in communication with the cavity of the outer shaft (400); the top end of the outer shaft (400) extending out of the tank body (100) and connected to a liquid discharge pipe (410); the top end of the central shaft (300) passing through the outer shaft (400) and being transmission-connected to a first motor (500), and the top end of the central shaft (300) being connected to a liquid inlet pipe (310); and a third scraper (320) being in contact with a bottom wall of the tank body (100) being provided at the bottom of the central shaft (300); A cleaning assembly (600) comprises a rotating ring (610) rotatable around the outer shaft (400), a first scraper strip (620) in contact with the outer wall of the boss (110), a second scraper strip (630) in contact with the outer peripheral wall of the outer shaft (400), and a connecting rod (640) connecting the first scraper strip (620) and the second scraper strip (630), wherein the connecting rod (640) is connected to the rotating ring (610) via a vertical rod (650).

2. A crystallization tank that is easy to clean according to claim 1, characterized in that: The liquid inlet (210) is arranged at the bottom of the jacket (200), and the liquid outlet (220) is arranged at the top of the jacket (200).

3. A crystallization tank that is easy to clean according to claim 1, characterized in that: The top surface and the bottom surface of the boss (110) are respectively a first drainage surface (111) and a second drainage surface (112); the first drainage surface (111) gradually slopes downward from the outside of the tank body (100) to the inside of the tank body (100); and the second drainage surface (112) gradually slopes downward from the inside of the tank body (100) to the outside of the tank body (100).

4. A crystallization tank that is easy to clean according to claim 3, characterized in that: The first scraper strip (620) is in a bent shape that contacts the first drainage surface (111) and the second drainage surface (112) of the boss (110).

5. The crystallization tank that is easy to clean according to claim 1, characterized in that: A rotatable conveying auger (700) is arranged in the discharge pipe (130), and the top end of the conveying auger (700) is connected to the bottom end of the central shaft (300).

6. The crystallization tank that is easy to clean according to claim 1, characterized in that: A first gear (510) is coaxially fixed to the upper portion of the central shaft (300), and a second gear (520) meshingly connected to the first gear (510) is fixed to the output end of the first motor (500).

7. The crystallization tank that is easy to clean according to claim 1, characterized in that: The top of the rotating ring (610) is rotatably mounted on the inner top wall of the tank body (100); a gear ring (800) is provided on the outer peripheral wall of the rotating ring (610); the gear ring (800) is meshingly connected with a transmission gear (810); and the transmission gear (810) is transmission-connected with a second motor (820) mounted on the outer top surface of the tank body (100).

8. A crystallization tank that is easy to clean according to claim 7, characterized in that: An annular partition (900) is provided on the upper peripheral wall of the tank body (100), the inner ring of the partition (900) and the outer wall of the rotating ring (610) are rotatably arranged, and the partition (900) is located below the transmission gear (810).

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