Centrifugal separation and recrystallization equipment for sodium acetate solid-liquid mixture

Abstract

The utility model relates to the technical field of centrifugal separation and recrystallization equipment, one embodiment of the utility model provides sodium acetate solid-liquid mixture centrifugal separation and recrystallization equipment which comprises two scraping rods, a rotating assembly, a moving frame and a moving assembly, the two scraping rods are arranged on the rotating assembly, and the rotating assembly is arranged on the moving frame; the material scraping rod is arranged in the cooling cylinder and used for driving the material scraping rod to rotate in the cooling cylinder and scraping crystals on the inner side wall of the cooling cylinder, the two moving frames are fixedly installed on the containing plate, sliding grooves are formed in the top ends of the moving frames, the moving assemblies are arranged on the moving frames, and the rotating assemblies are arranged on the moving assemblies. And the moving assembly is used for driving the scraping rod to move out of the cooling cylinder, so that crystals adhered to the scraping rod are collected. By means of the technical scheme, the technical problem that in the prior art, when a sodium acetate solution is cooled and crystallized, part of crystals are attached to the inner side wall of the cooling cylinder is solved.

Description

TECHNICAL FIELD

[0001] Embodiments of the present disclosure relate to the technical field of centrifugal separation recrystallization equipment, in particular, to a sodium acetate solid-liquid mixture centrifugal separation recrystallization equipment. BACKGROUND

[0002] Sodium acetate, also known as sodium acetate, is a common organic compound, which is widely used in printing and dyeing, medicine, chemical preparation and other fields. When producing sodium acetate, sodium acetate solution needs to be added into an evaporation and concentration tank, the solution inside is heated by heating wires, water vapor in the solution is evaporated to achieve the effect of concentration, and then the concentrated sodium acetate solution is transported to a cooling cylinder to cool and crystallize the solution. After crystallization, the crystals in the cooling cylinder are discharged into a centrifuge to separate the crystals from the remaining solution.

[0003] However, during cooling and crystallization, the temperature of the inner side wall of the cooling cylinder often drops faster than that of the solution inside, so the supersaturation of the solution near the inner side wall is relatively high, and therefore the sodium acetate crystals are easy to adhere to the inner side wall of the cooling cylinder. If not cleaned in time, it will affect the collection and processing of subsequent crystals, and also cause a certain degree of waste. CONTENT OF THE UTILITY MODEL

[0004] To overcome the above defects, embodiments of the present disclosure provide a sodium acetate solid-liquid mixture centrifugal separation recrystallization equipment, which solves the technical problem that in the prior art, during cooling and crystallization of sodium acetate solution, part of the crystals adhere to the inner side wall of the cooling cylinder.

[0005] According to one aspect, at least one embodiment of the present disclosure provides a sodium acetate solid-liquid mixture centrifugal separation recrystallization equipment, which comprises a heating box, a cooling cylinder and a centrifuge. The heating box, the cooling cylinder and the centrifuge are all installed on a placement plate, and the cooling cylinder is located above the centrifuge. The equipment further comprises two scraper rods, a rotating assembly, two moving frames and a moving assembly. The two scraper rods are both arranged on the rotating assembly and used to drive the scraper rods to rotate in the cooling cylinder to scrape the crystals on the inner side wall of the cooling cylinder. The two moving frames are both fixedly installed on the placement plate, and the top end of each moving frame is provided with a sliding groove. The moving assembly is arranged on the moving frame and the rotating assembly is arranged on the moving assembly. The moving assembly is used to drive the scraper rods to move out of the cooling cylinder, so as to collect the crystals adhered to the scraper rods.

[0006] Further, the moving assembly comprises support plates, electric cylinders and a lifting assembly, the support plates are provided with two, two support plates are respectively fixedly installed on two moving frames, the electric cylinders are provided with two, two electric cylinders are respectively installed on two support plates, the lifting assembly is arranged on the moving frame, and the height of the scraping rod in the cooling cylinder is adjusted.

[0007] Further, the lifting assembly comprises support covers, reciprocating lead screws, a first motor, a lead screw nut, a connecting rod and a sliding assembly, the support covers are provided with two, two support covers are respectively slidably installed in the sliding grooves of two moving frames, the output ends of two electric cylinders are respectively fixedly connected with the side surfaces of two support covers, the reciprocating lead screw is rotatably installed in one of the support covers, the first motor is installed in the support cover, the output end of the first motor is coaxially connected with the reciprocating lead screw, the lead screw nut is installed on the reciprocating lead screw, the connecting rod is fixedly installed on the side surface of the lead screw nut, and the sliding assembly is arranged on the moving frame.

[0008] Further, the sliding assembly comprises a sliding rod, a sliding block and a second connecting rod, the sliding rod is slidably installed in the sliding groove of the other moving frame, the sliding block is slidably installed on the sliding rod, and the second connecting rod is fixedly installed on the side surface of the sliding block.

[0009] Further, the rotating assembly comprises a connecting plate, a second motor, a rotating shaft and a rotating rod, the connecting plate is fixedly installed between the first connecting rod and the second connecting rod, the second motor is installed on the connecting plate, the rotating shaft is coaxially connected with the second motor, the rotating rod is fixedly installed at the bottom end of the rotating shaft, and two scraping rods are respectively fixedly installed at two ends of the rotating rod.

[0010] Further, the conveying assembly comprises a water pump, a suction pipe, a discharge pipe, a conveying pipe and a turning assembly, the water pump is installed on the placement plate, the suction pipe is communicatively installed between the heating box and the water pump, the discharge pipe is communicated with the discharge port of the water pump, the conveying pipe is communicatively and rotatably installed in the discharge pipe, and the turning assembly is arranged on the placement plate.

[0011] Further, the turning assembly comprises a support frame, a third motor, a gear and a gear ring, the support frame is fixedly installed on the placement plate, the third motor is installed on the support frame, the gear is fixedly connected with the output end of the third motor, the gear ring is fixedly installed on the conveying pipe, and the gear ring is engaged with the gear.

[0012] Further, the length of the scraping rod is consistent with the length of the cooling cylinder.

[0013] Further, when the bottom end of the connecting plate is in contact with the top end of the cooling cylinder, the scraping rod is in contact with the inner side wall of the cooling cylinder.

[0014] Further, a conveying pipe is connected between the cooling cylinder and the centrifugal machine, and an electromagnetic valve is installed on the conveying pipe.

[0015] The embodiments of the present disclosure have the following beneficial effects:

[0016] In the present disclosure, after crystallization of the sodium acetate solution, the rotating assembly and the scraping rod are moved by the moving assembly, so that the scraping rod is moved into the cooling cylinder, and then the rotating assembly drives the scraping rod to rotate, thereby scraping the crystals adhering to the inner side wall of the cooling cylinder. After scraping is completed, the scraping rod is moved out of the cooling cylinder by the moving assembly, and then the crystals adhering to the scraping rod are scraped by artificial, so as to avoid waste. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments of the present disclosure will be briefly introduced. Obviously, the drawings in the following description are only some example embodiments of the present disclosure. Those skilled in the art can obtain other drawings according to the content of the example embodiments of the present disclosure and these drawings without creating any creative labor.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the connecting plate and the moving assembly of the present utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the conveying assembly of the present utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the cooling cylinder, the centrifugal machine, the placing plate and the electromagnetic valve of the present utility model;

[0022] Figure 5 It is a schematic diagram of the structure of the cooling cylinder and the scraping rod of the present utility model;

[0023] Figure 6 It is a schematic diagram of the structure of the rotating assembly and the scraping rod of the present utility model.

[0024] In the figure: 1, heating box; 2, cooling cylinder; 3, centrifuge; 4, placing plate; 5, scraping rod; 6, moving frame; 7, supporting plate; 8, electric cylinder; 9, supporting cover; 10, reciprocating screw; 11, motor one; 12, screw nut; 13, connecting rod one; 14, sliding rod; 15, sliding block; 16, connecting rod two; 17, connecting plate; 18, motor two; 19, rotating shaft; 20, rotating rod; 21, water pump; 22, suction pipe; 23, discharge pipe; 24, conveying pipe; 25, supporting frame; 26, motor three; 27, gear; 28, gear ring; 29, conveying pipe; 30, electromagnetic valve. DETAILED DESCRIPTION

[0025] The present disclosure will be further described in conjunction with the drawings and examples. It can be understood that the specific examples described herein are merely used to explain the present disclosure, but not to limit the present disclosure.

[0026] In order to make the drawing simple, only the parts related to the disclosure are shown in each drawing, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the parts with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0027] In this paper, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting" and "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0028] In the present disclosure, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only means that the horizontal height of the first feature is less than that of the second feature.

[0029] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0030] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] Example 1, as Figures 1-6 The diagram illustrates a centrifugal separation and recrystallization apparatus for a sodium acetate solid-liquid mixture according to an embodiment of this disclosure. The apparatus includes a heating chamber 1, a cooling cylinder 2, and a centrifuge 3. The heating chamber 1, cooling cylinder 2, and centrifuge 3 are all mounted on a placement plate 4, with the cooling cylinder 2 positioned above the centrifuge 3. The apparatus also includes scraper rods 5, a rotating assembly, a moving frame 6, and a moving component. Two scraper rods 5 are provided, each mounted on the rotating assembly, and are used to rotate the scraper rods 5 within the cooling cylinder 2, scraping crystals off the inner wall of the cooling cylinder 2. Two moving frames 6 are provided, each fixedly mounted on the placement plate 4, and a groove is provided at the top of each moving frame 6. The moving component is mounted on the moving frame 6, and the rotating assembly is mounted on the moving component. The moving component is used to move the scraper rods 5 out of the cooling cylinder 2, thereby collecting the crystals adhering to the scraper rods 5.

[0032] After the sodium acetate solution has been cooled in cooling cylinder 2, if crystals adhere to the inner wall of cooling cylinder 2, the scraper rod 5 is moved into cooling cylinder 2 by the moving assembly. Figure 2As shown, the moving assembly comprises support plates 7, electric cylinders 8 and lifting assemblies, the support plates 7 are provided with two, the two support plates 7 are fixedly installed on the two moving frames 6 respectively, the electric cylinders 8 are provided with two, the two electric cylinders 8 are installed on the two support plates 7 respectively, the lifting assembly is arranged on the moving frame 6 and is used for adjusting the height of the scraping rod 5 in the cooling cylinder 2, the lifting assembly comprises support covers 9, reciprocating lead screws 10, motors 11, screw nuts 12, connecting rods 13 and sliding assemblies, the support covers 9 are provided with two, the two support covers 9 are slidingly installed in the sliding grooves of the two moving frames 6 respectively, and the output ends of the two electric cylinders 8 are fixedly connected with the side faces of the two support covers 9 respectively, the reciprocating lead screw 10 is rotatably installed in one of the support covers 9, the motor 11 is installed in the support cover 9, and the output end of the motor 11 is coaxially connected with the reciprocating lead screw 10, the screw nut 12 is installed on the reciprocating lead screw 10, the connecting rod 13 is fixedly installed on the side face of the screw nut 12, and the sliding assembly is arranged on the moving frame 6 and comprises sliding rods 14, sliding blocks 15 and connecting rods 16, the sliding rod 14 is slidingly installed in the sliding groove of the other moving frame 6, the sliding block 15 is slidingly installed on the sliding rod 14, and the connecting rod 16 is fixedly installed on the side face of the sliding block 15.

[0033] Specifically, the electric cylinder 8 is started, the electric cylinder 8 drives the support cover 9 to slide on the moving frame 6, and before this, the motor 11 is started, the motor 11 drives the reciprocating lead screw 10 to rotate in the support cover 9, so that the screw nut 12 moves upwards on the reciprocating lead screw 10, and then drives the connecting rod 13 and the connecting plate 17 to move upwards, the connecting plate 17 drives the connecting rod 16 to move upwards, and the connecting rod 16 drives the sliding block 15 to move on the sliding rod 14, and then moves the scraping rod 5 to the upper side of the cooling cylinder 2, and the electric cylinder 8 drives the support cover 9 to slide, so that the scraping rod 5 moves to the upper side of the cooling cylinder 2, after the movement is completed, the motor 11 is started again, so that the scraping rod 5 moves into the cooling cylinder 2, as Figure 5 As shown, because the length of the scraping rod 5 is consistent with the length of the cooling cylinder 2, and the bottom end of the connecting plate 17 is in contact with the top end of the cooling cylinder 2, the scraping rod 5 is in contact with the inner side wall of the cooling cylinder 2.

[0034] After the contact is completed, the rotating assembly drives the scraping rod 5 to rotate, as Figure 6 As shown, the rotating assembly comprises a connecting plate 17, a motor 18, a rotating shaft 19 and a rotating rod 20, the connecting plate 17 is fixedly installed between the connecting rod 13 and the connecting rod 16, the motor 18 is installed on the connecting plate 17, the rotating shaft 19 is coaxially connected with the motor 18, the rotating rod 20 is fixedly installed at the bottom end of the rotating shaft 19, and the two scraping rods 5 are fixedly installed at the two ends of the rotating rod 20 respectively.

[0035] Specific, by starting motor two 18, motor two 18 output end drives rotating shaft 19 rotation, rotating shaft 19 drives rotating rod 20 rotation, rotating rod 20 drives the scraper bar 5 rotation, so that the scraper bar 5 on the inner wall of cooling cylinder 2 adhering crystal scraping down, need to be added, the material of scraper bar 5 has wear resistance, then long time scraping will not easily deform or wear, also need to be added, reciprocating screw 10 has special spiral groove structure, screw nut 12 inner thread and reciprocating screw 10 outer thread mutually cooperate, when reciprocating screw 10 rotates, due to the meshing relationship between the thread, screw nut 12 will receive an axial force along the reciprocating screw 10, so as to move on the reciprocating screw 10, this is the known structure.

[0036] Working principle: after sodium acetate solution cooling crystallization, if there is crystal adhering to the inner wall of cooling cylinder 2, can start motor one 11, drive reciprocating screw 10 rotation in support cover 9, so as to drive screw nut 12 and connecting rod one 13 up, under the drive of connecting plate 17, drive connecting rod two 16 and sliding block 15 move on slide rod 14, move the scraper bar 5 up, after moving up, start electric cylinder 8, electric cylinder 8 drive support cover 9 move on moving frame 6, move the scraper bar 5 to the top of cooling cylinder 2, then move the scraper bar 5 down into the cooling cylinder 2, finally start motor two 18, drive the scraper bar 5 rotation, crystal adhering to the inner wall of cooling cylinder 2 is scraped down, if after scraping, the scraper bar 5 adhering a little crystal, can be moved out again, clean the crystal adhering to the scraper bar 5, such as Figure 4 As shown, cooling cylinder 2 and centrifuge 3 are communicated with conveying pipe 29, and electromagnetic valve 30 is installed on conveying pipe 29, by opening electromagnetic valve 30, the crystal is conveyed to centrifuge 3 through conveying pipe 29 for centrifugation.

[0037] In example two, when the scraper bar 5 is moved to the inside of cooling cylinder 2, because the feed pipe 24 is located above the cooling cylinder 2, so the feed pipe 24 will block the scraper bar 5 entering the cooling cylinder 2, therefore, based on example one, as shown in Figure 3 The conveying assembly includes water pump 21, suction pipe 22, discharge pipe 23, feed pipe 24 and steering assembly, water pump 21 is installed on the placing plate 4, suction pipe 22 is communicated and installed between heating box 1 and water pump 21, discharge pipe 23 is communicated with the discharge port of water pump 21, feed pipe 24 is communicated and installed in discharge pipe 23, steering assembly is arranged on placing plate 4, steering assembly includes support frame 25, motor three 26, gear 27 and gear ring 28, support frame 25 is fixedly installed on placing plate 4, motor three 26 is installed on support frame 25, gear 27 is fixedly connected with the output end of motor three 26, gear ring 28 is fixedly installed on feed pipe 24, and gear ring 28 is engaged with gear 27.

[0038] Specifically, when the sodium acetate solution in the heating tank 1 is delivered into the cooling cylinder 2 by the water pump 21, the motor three 26 can be started, the output end of the motor three 26 drives the gear 27 to rotate, the gear 27 drives the gear ring 28 to rotate, the gear ring 28 drives the feeding pipe 24 to rotate in the discharge pipe 23, so as to move the discharge port of the feeding pipe 24 to the upper side of the cooling cylinder 2, start the water pump 21, and the solution enters into the cooling cylinder 2 through the suction pipe 22, the discharge pipe 23 and the feeding pipe 24, if the scraper rod 5 needs to be moved into the cooling cylinder 2 subsequently, the motor three 26 can be started again, the feeding pipe 24 is rotated to one side, so as to prevent the feeding pipe 24 from hindering the downward movement of the scraper rod 5, and the feeding pipe 24 is provided with a sealing ring when rotating in the discharge pipe 23, so as to ensure the sealing property.

[0039] Working principle: when the sodium acetate solution is delivered, the motor three 26 is started, the output end of the motor three 26 drives the gear 27 to rotate, the gear 27 drives the gear ring 28 to rotate, the gear ring 28 drives the feeding pipe 24 to rotate in the discharge pipe 23, so as to move the discharge port of the feeding pipe 24 to the upper side of the cooling cylinder 2, then the water pump 21 is started, and the solution enters into the cooling cylinder 2 through the suction pipe 22, the discharge pipe 23 and the feeding pipe 24.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, not to limit it, although the present disclosure has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present disclosure can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present disclosure, and they should be covered in the scope of the claims of the present disclosure.

Claims

1. A centrifugal separation and recrystallization apparatus for sodium acetate solid-liquid mixtures, comprising a heating chamber (1), a cooling cylinder (2), and a centrifuge (3), wherein the heating chamber (1), the cooling cylinder (2), and the centrifuge (3) are all mounted on a placement plate (4), and the cooling cylinder (2) is located above the centrifuge (3), characterized in that, Also includes: Two scraper rods (5) are provided; The rotating assembly has two scraper rods (5) mounted on it, which are used to drive the scraper rods (5) to rotate inside the cooling cylinder (2) and scrape the crystals off the inner wall of the cooling cylinder (2). Two movable frames (6) are provided, and both movable frames (6) are fixedly installed on the placement plate (4), and the top of the movable frame (6) is provided with a sliding groove; A moving component is provided on the moving frame (6), and a rotating component is provided on the moving component. The moving component is used to drive the scraper rod (5) to move out of the cooling cylinder (2) so as to collect the crystals adhering to the scraper rod (5).

2. The centrifugal separation and recrystallization equipment for sodium acetate solid-liquid mixtures according to claim 1, characterized in that, The moving component includes: Support plate (7), two support plates (7) are provided, and the two support plates (7) are respectively fixedly installed on the two movable frames (6); Two electric cylinders (8) are provided, and the two electric cylinders (8) are respectively installed on the two support plates (7); A lifting assembly is mounted on the movable frame (6) and is used to adjust the height of the scraper rod (5) inside the cooling cylinder (2).

3. The centrifugal separation and recrystallization apparatus for sodium acetate solid-liquid mixtures according to claim 2, characterized in that, The lifting assembly includes: Support cover (9), two support covers (9) are provided, the two support covers (9) are slidably installed in the sliding grooves of the two movable frames (6), and the output ends of the two electric cylinders (8) are fixedly connected to the sides of the two support covers (9); A reciprocating lead screw (10) is rotatably mounted inside one of the support covers (9); Motor 1 (11) is installed inside the support cover (9), and the output end of the motor 1 (11) is coaxially connected to the reciprocating screw (10); A lead screw nut (12) is mounted on the reciprocating lead screw (10); Connecting rod one (13), the connecting rod one (13) is fixedly installed on the side of the lead screw nut (12); A sliding component is disposed on the movable frame (6).

4. The centrifugal separation and recrystallization apparatus for sodium acetate solid-liquid mixtures according to claim 3, characterized in that, The sliding component includes: A slide bar (14) is slidably mounted in a groove of another movable frame (6); A slider (15) is slidably mounted on the slide bar (14); Connecting rod two (16) is fixedly installed on the side of the slider (15).

5. The centrifugal separation and recrystallization apparatus for sodium acetate solid-liquid mixtures according to claim 4, characterized in that, The rotating component includes: A connecting plate (17) is fixedly installed between the first connecting rod (13) and the second connecting rod (16); Motor 2 (18), which is mounted on the connecting plate (17); Rotating shaft (19), which is coaxially connected to the second motor (18); A rotating rod (20) is fixedly installed at the bottom end of the rotating shaft (19), and two scraper rods (5) are fixedly installed at both ends of the rotating rod (20).

6. The centrifugal separation and recrystallization apparatus for sodium acetate solid-liquid mixtures according to claim 5, characterized in that, It also includes a conveying assembly, which comprises: A water pump (21) is mounted on the placement plate (4); Suction pipe (22), which is connected and installed between the heating box (1) and the water pump (21); The discharge pipe (23) is connected to the discharge port of the water pump (21); The material conveying pipe (24) is rotatably installed inside the discharge pipe (23); Steering assembly, which is disposed on the placement plate (4).

7. The centrifugal separation and recrystallization apparatus for sodium acetate solid-liquid mixtures according to claim 6, characterized in that, The steering component includes: A support frame (25) is fixedly installed on the placement plate (4); Motor 3 (26), which is mounted on the support frame (25); Gear (27), the gear (27) is fixedly connected to the output end of the motor (26); A toothed ring (28) is fixedly mounted on the feed pipe (24) and meshes with the gear (27).

8. The centrifugal separation and recrystallization apparatus for sodium acetate solid-liquid mixtures according to claim 7, characterized in that, The length of the scraper (5) is the same as the length of the cooling cylinder (2).

9. The centrifugal separation and recrystallization apparatus for sodium acetate solid-liquid mixtures according to claim 8, characterized in that, When the bottom end of the connecting plate (17) contacts the top end of the cooling cylinder (2), the scraper (5) is in contact with the inner wall of the cooling cylinder (2).

10. The centrifugal separation and recrystallization apparatus for sodium acetate solid-liquid mixtures according to claim 9, characterized in that, A delivery pipe (29) is connected between the cooling cylinder (2) and the centrifuge (3), and a solenoid valve (30) is installed on the delivery pipe (29).

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