Device for purifying acetaminophen

Abstract

The utility model discloses a purification device for acetaminophen, which belongs to the technical field of acetaminophen purification and comprises a drying box and four supporting legs, an inclined guide-out plate is fixed among the four supporting legs, two symmetrically arranged connecting rods and two symmetrically arranged guide rods are arranged above the inclined guide-out plate, and the inclined guide-out plate is arranged above the drying box. The guide rods are perpendicular to the connecting rods, and the two guide rods are fixedly connected with the two connecting rods; according to the utility model, through the arrangement of the auxiliary overturning material pouring structure, an electric telescopic rod b is started, a bottom closing plate connected with an inverted L-shaped rod can be moved towards the top end of an inclined guide-out plate, and when a plurality of teeth carry out transmission on a gear, a spline sleeve can drive a spline shaft to overturn; and therefore, the dried acetaminophen solid particles in the mesh cylinder are inverted on the inclined guide-out plate to be discharged, and the discharging efficiency of the acetaminophen solid particles is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of acetaminophen purification, and specifically relates to an acetaminophen purification device. Background Art

[0002] The purification device of acetaminophen (also known as paracetamol) can adopt the method of crystallization purification. A common crystallization purification device is a crystallization tank, the principle of which is to separate impurities through the cooling and crystallization process of the solution to obtain pure acetaminophen crystals.

[0003] In the crystallization tank, paracetamol is first dissolved in hot water to form a solution, and then the temperature is gradually lowered to gradually crystallize and precipitate the paracetamol in the solution, while the impurities remain in the solution without crystallizing. Finally, the paracetamol crystals obtained by crystallization are filtered and dried to obtain pure paracetamol products.

[0004] At present, in order to purify the acetaminophen crystals obtained by crystallization, a drying device is required. However, the purification drying device of the prior art has the following disadvantages during use:

[0005] On the one hand, the acetaminophen crystals obtained by crystallization are placed upside down in a drying box and dried by a hot air drying device to remove moisture. However, in actual use, the acetaminophen crystals are piled up together and cannot be shaken, which greatly reduces the drying efficiency.

[0006] Secondly, when the dried acetaminophen crystals are taken out from the drying equipment, they need to be taken out manually, resulting in low discharging efficiency. For this reason, we proposed a purification device for acetaminophen. Utility Model Content

[0007] The purpose of the utility model is to provide a purification device for acetaminophen to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a purification device for acetaminophen, comprising a drying box and four supporting legs, an inclined export plate is fixed between the four supporting legs, two symmetrically arranged connecting rods and two symmetrically arranged guide rods are arranged above the inclined export plate, the guide rods are vertically arranged between the connecting rods, the two guide rods are fixedly connected to the two connecting rods, a drying box fixedly connected between the two guide rods is arranged between the two connecting rods, the vertical sections of the guide rods are all isosceles trapezoidal structures, a bottom closing plate with a U-shaped vertical section is movably overlapped at the bottom opening of the drying box, the bottom closing plate is slidably sleeved on the outside of the two guide rods, guide grooves matching the guide rods are opened on the inner walls on both sides of the bottom closing plate, a cover plate is hinged at the top of the drying box, and a plurality of through holes are opened on the cover plate;

[0009] A mesh cylinder is installed inside the drying box, and an anti-rotation swing structure is connected between the mesh cylinder and the drying box. The anti-rotation swing structure can realize the left and right swing of the mesh cylinder and effectively prevent the mesh cylinder from automatically turning over.

[0010] A hot air blower is fixedly connected to one side wall of the drying box, an air outlet pipe is fixed at the air outlet of the hot air blower, and one end of the air outlet pipe extends to the interior of the drying box;

[0011] It also includes an auxiliary flipping and pouring structure, which is installed on a side wall of the drying box away from the hot air blower and is connected to the bottom closing plate. The auxiliary flipping and pouring structure can prompt the bottom closing plate to move toward the top of the inclined lead-out plate, and finally prompt the mesh tube to flip, and the solid acetaminophen particles in the mesh tube are inverted on the inclined lead-out plate for discharge.

[0012] As a preferred embodiment, the anti-rotation swing structure includes spline sleeves rotatably connected to both side walls of the drying box, matching spline shafts are movably installed in the mounting shaft holes of the two spline sleeves, and the opposite ends of the two spline shafts are fixedly connected to the outside of the mesh tube.

[0013] As a preferred embodiment, the two ends of the spline shafts that are away from each other are rotatably connected to the same N-type movable plate, the N-type movable plate is slidably inserted on the drying box, and an electric telescopic rod a is fixedly connected to one side wall of the drying box, and the telescopic end of the electric telescopic rod a is connected to the inner wall of one side of the N-type movable plate.

[0014] As a preferred embodiment, gears are fixed to the outer sides of the two spline sleeves, and inverted L-shaped tooth plates are meshed and connected below the gears. The inverted L-shaped tooth plates are slidably connected to the outer wall of the drying box through sliders with convex structures in vertical cross-sections. The sliders are slidably connected to the slide grooves provided on the outer wall of the drying box, and one end of the slider is connected to the inner wall of the slide groove through a spring.

[0015] As a preferred embodiment, the auxiliary flipping and unloading structure includes an electric telescopic rod b fixed to a side wall of the drying box facing away from the hot air blower, the telescopic end of the electric telescopic rod b is fixed with an inverted L-shaped rod, and the bottom end of the inverted L-shaped rod is fixed to the top of the bottom closing plate.

[0016] As a preferred embodiment, a plurality of equally spaced teeth are fixedly connected to a side wall of the inverted L-shaped rod facing the supporting foot, and when the inverted L-shaped rod moves toward the top of the inclined export plate along with the bottom closing plate, the plurality of teeth can transmit the gear.

[0017] Compared with the prior art, the acetaminophen purification device provided by the utility model has at least the following beneficial effects:

[0018] (1) By setting up an anti-rotation swing structure, the electric telescopic rod a pushes and pulls the n-type moving plate to move back and forth left and right, so that the two spline shafts can drive the mesh cylinder to move back and forth left and right, thereby causing the solid particles of acetaminophen in the mesh cylinder to shake, and combined with the hot air supply of the hot air blower, the drying efficiency of the solid particles of acetaminophen is greatly improved, thereby effectively improving the purification efficiency;

[0019] (2) By setting up an auxiliary flipping and unloading structure, the electric telescopic rod b is started, and the bottom closing plate connected to the inverted L-shaped rod can be moved toward the top end of the inclined lead-out plate. When multiple teeth are transmitting to the gear, the spline sleeve can drive the spline shaft to flip, thereby causing the dried acetaminophen solid particles in the mesh cylinder to be inverted on the inclined lead-out plate for unloading, thereby greatly improving the unloading efficiency of the acetaminophen solid particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional inclined top view structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the overall three-dimensional inclined upward-looking structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the overall three-dimensional inclined top view structure of the drying box of the utility model after being cut open;

[0023] Figure 4 It is a schematic diagram of the enlarged structure of point A of the utility model.

[0024] In the figure: 1. inclined export plate; 2. supporting foot; 3. connecting rod; 4. guide rod; 5. drying box; 51. cover plate; 52. spline sleeve; 53. spline shaft; 54. mesh tube; 55. n-type moving plate; 56. electric telescopic rod a; 57. gear; 58. inverted L-shaped tooth plate; 59. slider; 510. spring; 6. bottom closing plate; 7. hot air blower; 71. air outlet pipe; 8. auxiliary flipping and unloading structure; 81. inverted L-shaped rod; 82. teeth; 83. electric telescopic rod b. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the embodiments.

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present disclosure.

[0027] Unless otherwise defined, the technical or scientific terms used in the present disclosure shall have the usual meanings understood by persons with ordinary skills in the field to which the present disclosure belongs. The words "including" or "comprising" and the like used in the present disclosure mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. The words "connect" or "connected" and the like are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly. Example

[0028] On the one hand, the acetaminophen crystals obtained by crystallization are placed upside down in a drying box 5 and dried by a drying hot air device to remove moisture. However, in actual use, the acetaminophen crystals are piled together and cannot be shaken, thereby greatly reducing the drying efficiency;

[0029] Secondly, when the dried acetaminophen crystals are taken out from the drying equipment, they need to be taken out manually, resulting in low discharging efficiency.

[0030] To do this, see Figure 1-4The utility model provides a purification device for acetaminophen, comprising: a drying box 5 and four supporting legs 2, an inclined export plate 1 is fixed between the four supporting legs 2, two symmetrically arranged connecting rods 3 and two symmetrically arranged guide rods 4 are arranged above the inclined export plate 1, the guide rods 4 and the connecting rods 3 are vertically arranged, the two guide rods 4 are fixedly connected to the two connecting rods 3, a drying box 5 fixedly connected between the two guide rods 4 is arranged between the two connecting rods 3, the vertical sections of the guide rods 4 are all isosceles trapezoidal structures, a bottom closing plate 6 with a U-shaped vertical section is movably overlapped at the bottom opening of the drying box 5, the bottom closing plate 6 is slidably sleeved on the outer sides of the two guide rods 4, and guide grooves matching the guide rods 4 are provided on the inner walls on both sides of the bottom closing plate 6, and a cover plate 51 is hinged at the top of the drying box 5, and a plurality of through holes are provided on the cover plate 51;

[0031] A mesh cylinder 54 is installed inside the drying box 5, and an anti-rotation swing structure is connected between the mesh cylinder 54 and the drying box 5. The anti-rotation swing structure can realize the mesh cylinder 54 to swing left and right, and can effectively prevent the mesh cylinder 54 from automatically turning over;

[0032] A hot air blower 7 is fixedly connected to one side wall of the drying box 5, and an air outlet pipe 71 is fixed at the air outlet of the hot air blower 7, and one end of the air outlet pipe 71 extends to the interior of the drying box 5;

[0033] It also includes an auxiliary flipping and pouring structure 8, which is installed on a side wall of the drying box 5 away from the hot air blower 7 and is connected to the bottom closing plate 6. The auxiliary flipping and pouring structure 8 can prompt the bottom closing plate 6 to move toward the top of the inclined lead-out plate 1, and finally prompt the mesh tube 54 to flip, and the acetaminophen solid particles in the mesh tube 54 are inverted on the inclined lead-out plate 1 for discharge.

[0034] The arrangement of multiple through holes allows the heat generated by drying to be dissipated.

[0035] Further Figure 1-4As shown, it is worth explaining in detail that in order to enable the mesh tube 54 to swing left and right while preventing the mesh tube 54 from automatically turning over, an anti-rotation swing structure is set, including spline sleeves 52 that are rotatably connected to the two side walls of the drying box 5, and matching spline shafts 53 are movably installed in the mounting shaft holes of the two spline sleeves 52. The opposite ends of the two spline shafts 53 are fixedly connected to the outside of the mesh tube 54, and the opposite ends of the two spline shafts 53 are rotatably connected to the same n-type moving plate 55, which is slidably inserted in the drying box. On the drying box 5, an electric telescopic rod a56 is fixedly connected to one side wall of the drying box 5, and the telescopic end of the electric telescopic rod a56 is connected to the inner wall of one side of the n-shaped movable plate 55. Gears 57 are fixedly connected to the outer sides of the two spline sleeves 52, and inverted L-shaped tooth plates 58 are meshed and connected below the gears 57. The inverted L-shaped tooth plates 58 are slidably connected to the outer side wall of the drying box 5 through a slider 59 with a convex structure in the vertical section. The sliders 59 are slidably connected to the slide grooves provided on the outer side wall of the drying box 5, and one end of the slider 59 is connected to the inner wall of the slide groove through a spring 510.

[0036] When the plurality of teeth 82 transmit the power to the gear 57 , the mesh tube 54 is rotated, and at the same time, the inverted L-shaped tooth plate 58 is moved through the slider 59 , and the spring 510 is compressed.

[0037] Further Figure 1-4 As shown, it is worth explaining in detail that in order to enable the bottom closing plate 6 to automatically flip over the mesh tube 54 after moving a certain distance, and quickly pour out the dried acetaminophen crystals in the mesh tube 54, an auxiliary flipping and pouring structure 8 is provided, including an electric telescopic rod b83 fixedly connected to a side wall of the drying box 5 away from the hot air blower 7, and the telescopic end of the electric telescopic rod b83 is fixedly connected to an inverted L-shaped rod 81, the bottom end of the inverted L-shaped rod 81 is fixedly connected to the top of the bottom closing plate 6, and a plurality of equidistantly arranged teeth 82 are fixedly connected to the side wall of the inverted L-shaped rod 81 facing the supporting foot 2. When the inverted L-shaped rod 81 moves along with the bottom closing plate 6 toward the top of the inclined export plate 1, the plurality of teeth 82 can transmit the gear 57.

[0038] The length of the inverted L-shaped rod 81 is greater than the length of the drying box 5 , so that the bottom closing plate 6 can be completely moved away from the bottom of the drying box 5 before the multiple teeth 82 can drive the gear 57 .

[0039] In summary, when the paracetamol purification device is used, the cover plate 51 is opened manually, and the paracetamol solid particles to be dried are placed upside down in the mesh tube 54, and the cover plate 51 is closed. In addition, by starting the electric telescopic rod a56, the n-type moving plate 55 is reciprocatedly pushed and pulled to move back and forth left and right, so that the two spline shafts 53 can drive the mesh tube 54 to move back and forth left and right, thereby causing the paracetamol solid particles in the mesh tube 54 to shake, and combined with the hot air supply of the hot air blower 7, the drying process is greatly improved. In order to improve the drying efficiency of the solid particles of acetaminophen, and thus effectively improve the efficiency of purification, the electric telescopic rod b83 is started, and the bottom closing plate 6 connected to the inverted L-shaped rod 81 can be moved toward the top end of the inclined export plate 1, and when the multiple teeth 82 transmit the gear 57, the spline sleeve 52 can drive the spline shaft 53 to flip, thereby prompting the dried acetaminophen solid particles in the mesh cylinder 54 to be inverted on the inclined export plate 1 for discharge, which greatly improves the discharge efficiency of the acetaminophen solid particles.

[0040] The electric telescopic rod a56, the electric telescopic rod b83 and the hot air blower 7 can be purchased on the market. The electric telescopic rod a56, the electric telescopic rod b83 and the hot air blower 7 are equipped with a power supply. They are mature technologies in this field and have been fully disclosed, so they are not repeated in the specification.

Claims

1. A paracetamol purification device, comprising a drying box (5) and four supporting legs (2), characterized in that: An inclined export plate (1) is fixed between the four supporting legs (2), two symmetrically arranged connecting rods (3) and two symmetrically arranged guide rods (4) are arranged above the inclined export plate (1), the guide rods (4) and the connecting rods (3) are vertically arranged, the two guide rods (4) and the two connecting rods (3) are fixedly connected, a drying box (5) fixedly connected between the two guide rods (4) is arranged between the two connecting rods (3), the vertical cross-sections of the guide rods (4) are all isosceles trapezoidal structures, a bottom closing plate (6) with a U-shaped vertical cross-section is movably overlapped at the bottom opening of the drying box (5), the bottom closing plate (6) is slidably sleeved on the outside of the two guide rods (4), and guide grooves matching the guide rods (4) are provided on the inner walls on both sides of the bottom closing plate (6), and a cover plate (51) is hinged at the top of the drying box (5), and a plurality of through holes are provided on the cover plate (51); A mesh cylinder (54) is installed inside the drying box (5), and an anti-rotation swing structure is connected between the mesh cylinder (54) and the drying box (5). The anti-rotation swing structure can enable the mesh cylinder (54) to swing left and right while effectively preventing the mesh cylinder (54) from automatically turning over. A hot air blower (7) is fixedly connected to one side wall of the drying box (5); an air outlet pipe (71) is fixed at the air outlet of the hot air blower (7); one end of the air outlet pipe (71) extends into the interior of the drying box (5); The invention also includes an auxiliary overturning and discharging structure (8), which is installed on a side wall of the drying box (5) away from the hot air blower (7) and connected to the bottom closing plate (6). The auxiliary overturning and discharging structure (8) can cause the bottom closing plate (6) to move toward the top of the inclined outlet plate (1), and finally cause the mesh tube (54) to overturn, and the solid acetaminophen particles in the mesh tube (54) to be inverted on the inclined outlet plate (1) for discharge.

2. A paracetamol purification device according to claim 1, characterized in that: The anti-rotation swing structure comprises spline sleeves (52) rotatably connected to both side walls of the drying box (5), matching spline shafts (53) being movably mounted in the mounting shaft holes of the two spline sleeves (52), and opposite ends of the two spline shafts (53) being fixedly connected to the outer side of the mesh tube (54).

3. A paracetamol purification device according to claim 2, characterized in that: The two ends of the two spline shafts (53) that are separated from each other are both rotatably connected to the same N-shaped movable plate (55), and the N-shaped movable plate (55) is slidably inserted on the drying box (5). An electric telescopic rod a (56) is fixedly connected to a side wall of the drying box (5), and the telescopic end of the electric telescopic rod a (56) is connected to an inner wall of one side of the N-shaped movable plate (55).

4. A paracetamol purification device according to claim 3, characterized in that: The outer sides of the two spline sleeves (52) are fixedly connected with gears (57), and the lower sides of the gears (57) are meshingly connected with inverted L-shaped toothed plates (58). The inverted L-shaped toothed plates (58) are slidably connected to the outer wall of the drying box (5) through sliders (59) with a convex structure in vertical section. The sliders (59) are slidably connected to the slide grooves provided on the outer wall of the drying box (5), and one end of the sliders (59) is connected to the inner wall of the slide groove through a spring (510).

5. A paracetamol purification device according to claim 4, characterized in that: The auxiliary turning and unloading structure (8) comprises an electric telescopic rod b (83) fixedly connected to a side wall of the drying box (5) away from the hot air blower (7), the telescopic end of the electric telescopic rod b (83) being fixedly connected to an inverted L-shaped rod (81), and the bottom end of the inverted L-shaped rod (81) being fixedly connected to the top end of the bottom closing plate (6).

6. A paracetamol purification device according to claim 5, characterized in that: A plurality of teeth (82) arranged at equal intervals are fixedly connected to a side wall of the inverted L-shaped rod (81) facing the support foot (2); when the inverted L-shaped rod (81) moves along with the bottom closing plate (6) toward the top end of the inclined lead-out plate (1), the plurality of teeth (82) can transmit power to the gear (57).

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