A feeding device of a PET crystallization machine

Abstract

The application relates to the technical field of PET crystallization machines, in particular to a feeding device of a PET crystallization machine, which comprises a storage tank, a crystallization tank in communication with the storage tank, an upper chamber and a lower chamber, the upper chamber being detachably connected on the top of the lower chamber, and the crystallization tank being in communication with the lower chamber; a first communicating pipe, which is in an n type, has one end located in the upper chamber and the other end inserted into the lower chamber, and is detachably connected with the inner wall of the upper chamber and has a gap; a vacuum pump and a second communicating pipe, one end of the second communicating pipe being connected with the vacuum pump, the other end being in communication with and detachably connected with the upper chamber. The application has the effects that the upper chamber is convenient to disassemble, and the upper chamber is convenient to individually replace and clean.

Description

Technical Field

[0001] This application relates to the field of PET crystallizer technology, and in particular to a feeding device for a PET crystallizer. Background Technology

[0002] A PET crystallizer is a device used to crystallize and dry PET (polyethylene terephthalate) raw materials. It is widely used in the production of plastic products, such as plastic bottles and plastic sheets.

[0003] The utility model patent with publication number CN217648758U discloses a feeding device for a PET crystallizer, which combines dust with water in the upper chamber by setting up a dust removal chamber, thereby achieving the function of dust removal and ensuring the service life of the vacuum pump.

[0004] However, dust accumulates in the upper chamber during long-term use, requiring not only water replacement but also cleaning. However, since the upper and lower chambers are fixed together, it is inconvenient to disassemble and clean the upper chamber. Utility Model Content

[0005] The purpose of this application is to provide a feeding device for a PET crystallizer, which facilitates the disassembly of the upper chamber and allows for easy replacement and cleaning of the upper chamber.

[0006] The feeding device for a PET crystallizer provided in this application adopts the following technical solution:

[0007] A feeding device for a PET crystallizer includes:

[0008] Storage tanks;

[0009] The crystallization tank is connected to the storage tank;

[0010] The crystallization tank comprises an upper chamber and a lower chamber, wherein the upper chamber is detachably connected to the top of the lower chamber, and the crystallization tank is connected to the lower chamber.

[0011] A first connecting pipe, which is n-shaped and has one end located in the upper chamber and the other end inserted into the lower chamber, has a gap between the first connecting pipe and the inner wall of the upper chamber and is detachably connected to the upper chamber;

[0012] A vacuum pump and a second connecting pipe, one end of which is connected to the vacuum pump and the other end of which is connected to the upper chamber and can be detachably connected.

[0013] Optionally, the first connecting pipe includes a straight pipe and a bend. The straight pipe is fixedly connected to the lower chamber, and the bend is detachably installed on the upper chamber. When the upper chamber and the lower chamber are aligned with each other, the straight pipe and the bend are aligned and connected.

[0014] Optionally, a first flange is fixedly connected to the bend, and the bend is connected to the upper chamber through the first flange.

[0015] Optionally, a first sealing ring is provided between the first flange and the inner wall of the upper cavity.

[0016] Optionally, a sliding groove is provided on the top surface of the lower chamber, and the upper chamber is slidably disposed in the sliding groove and can slide out of the sliding groove;

[0017] A fixing member is provided on the upper chamber, which is used to restrict the sliding of the upper chamber.

[0018] Optionally, a slot is provided on the inner wall of one end of the slide, and an insert is fixedly connected to the side wall of the upper chamber, so that the upper chamber can slide until the insert is inserted into the slot.

[0019] Optionally, a second flange is provided on the second connecting pipe, and the second connecting pipe is detachably connected to the upper chamber through the second flange.

[0020] Optionally, it also includes a frame, the second connecting pipe and the vacuum pump are slidably disposed on the frame, the second connecting pipe and the vacuum pump can slide along the axis of the second flange, and a second sealing ring is provided between the second flange and the upper chamber.

[0021] Optionally, the upper chamber is connected to a drain pipe and a water inlet pipe.

[0022] This application allows for the detachable connection of the upper chamber to the lower chamber, the first connecting pipe, and the second connecting pipe. When the upper chamber needs to be cleaned, it can be disassembled separately for individual cleaning. A spare upper chamber can also be installed to ensure the continued operation of the device. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the feeding device of a PET crystallizer according to an embodiment of this application.

[0024] Figure 2 This is a schematic diagram of the upper and lower chambers in an embodiment of this application.

[0025] Figure 3 This is a cross-sectional view of the upper and lower chambers in an embodiment of this application.

[0026] In the diagram, 1 is the storage tank; 2 is the crystallizing tank; 21 is the discharge pipe; 3 is the upper chamber; 31 is the water inlet pipe; 32 is the drain pipe; 33 is the first groove; 34 is the insert block; 35 is the mounting block; 4 is the lower chamber; 41 is the chute; 42 is the slot; 5 is the first connecting pipe; 51 is the straight pipe; 52 is the bend; 53 is the first flange; 54 is the first sealing ring; 6 is the vacuum pump; 7 is the second connecting pipe; 71 is the second flange; 72 is the second sealing ring; 73 is the limiting ring; 8 is the fixing component; 9 is the frame; 91 is the collar; and 92 is the support block. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1 -Appendix Figure 3 This application will be described in further detail below.

[0028] A feeding device for a PET crystallizer, as described in the following example. Figure 1 The system includes a storage tank 1, a crystallization tank 2, an upper chamber 3, a lower chamber 4, a first connecting pipe 5, a vacuum pump 6, and a second connecting pipe 7. The storage tank 1 and the crystallization tank 2 are interconnected, the crystallization tank 2 is connected to the lower chamber 4, the lower chamber 4 is connected to the upper chamber 3 via the first connecting pipe 5, and the vacuum pump 6 is connected to the upper chamber 3 via the second connecting pipe 7. During operation, the vacuum pump 6 operates to evacuate the raw material from the storage tank 1 into the crystallization tank 2 for processing. The bottom of the crystallization tank 2 is equipped with a discharge pipe 21, through which the raw material flows out after processing.

[0029] The first connecting pipe 5 is n-shaped, with one end located in the upper chamber 3 and the other end inserted into the lower chamber 4. There is a gap between the first connecting pipe 5 and the inner wall of the upper chamber 3. Water is stored in the upper chamber 3, and the water level is above the opening end of the first connecting pipe 5 and there is a gap between the water level and the top surface of the upper chamber 3. When the vacuum pump 6 is pumping air, the water filters the dust in the air to avoid excessive dust in the vacuum pump 6, which would affect the operation of the vacuum pump 6.

[0030] Reference Figure 2 Furthermore, the upper chamber 3 is connected to an inlet pipe 31 and a drain pipe 32. After the device has been used for a period of time, the water in the upper chamber 3 can be drained through the drain pipe 32 and new water can be introduced through the inlet pipe 31 to reduce dust accumulation in the upper chamber 3. In this embodiment, the inlet pipe 31 is connected to the water tank through a connecting valve. During daily use, the inlet pipe 31 and the water tank are connected to each other. When disassembly is required, the inlet pipe 31 can be directly separated from the water tank. The drain pipe 32 is connected to a drainage ditch or a recycling tank through a connecting valve, which can collect the used water or drain it directly. When disassembly is required, the drain pipe 32 can be separated from the drainage ditch or the water tank.

[0031] Furthermore, the upper chamber 3 is detachably connected to the lower chamber 4, the first connecting pipe 5, and the second connecting pipe 7. When cleaning the upper chamber 3 is required, it can be separated from the first connecting pipe 5, the second connecting pipe 7, and the lower chamber 4, allowing the upper chamber 3 to be disassembled for cleaning. The upper chamber 3 has an opening with a door panel installed at the opening. During disassembly, the door panel is opened first, then the first connecting pipe 5 is removed, followed by the disassembly of the inlet pipe 31, the drain pipe 32, and the second connecting pipe 7. The upper chamber 3 can then be removed for cleaning. A spare upper chamber 3 can be installed to allow the device to continue operating without waiting for the cleaning of this upper chamber 3 to complete. In this embodiment, the door panel can be rotatably positioned at the opening and is equipped with a lock to limit its movement. Other installation methods may also be used in other embodiments.

[0032] The following describes the disassembly and connection of the upper chamber 3 and the first connecting pipe 5:

[0033] Reference Figure 3 The first connecting pipe 5 includes a straight pipe 51 and a bent pipe 52. The straight pipe 51 is fixedly connected to the lower chamber 4 and passes through the top surface of the lower chamber 4. The bent pipe 52 is detachably connected to the upper chamber 3 and passes through the bottom surface of the upper chamber 3. When the upper chamber 3 and the lower chamber 4 are aligned, the straight pipe 51 and the bent pipe 52 are aligned and connected to each other. That is, when the upper chamber 3 is installed on the lower chamber 4, the straight pipe 51 and the bent pipe 52 are aligned to form the first connecting pipe 5, which serves to filter dust. When it is necessary to disassemble the upper chamber 3, the bent pipe 52 can be detached from the upper chamber 3.

[0034] Specifically, the first flange 53 is fixedly connected to the bend 52. The bend 52 is fixed and detachably connected to the upper chamber 3 through the first flange 53. When it is necessary to disassemble the bend 52, simply loosen the bolts on the first flange 53.

[0035] Furthermore, a first sealing ring 54 is provided between the first flange 53 and the inner wall of the upper chamber 3. The first sealing ring 54 is coaxially arranged with one end of the bend 52 that penetrates the upper chamber 3. During the process of fixing the first flange 53, the first sealing ring 54 is continuously compressed, causing the first sealing ring 54 to undergo elastic deformation, thereby sealing the position where the bend 52 penetrates the upper chamber 3 and reducing water leakage at this point.

[0036] Furthermore, a first groove 33 adapted to the first sealing ring 54 is provided on the bottom wall of the upper chamber 3. The first sealing ring 54 is partially inside the first groove 33 and partially outside the first groove 33. By setting the first groove 33, the position of the first sealing ring 54 is limited, reducing the possibility of the first sealing ring 54 shifting position.

[0037] When disassembling the first connecting pipe 5, loosen the bolts on the first flange 53, then remove the bend 52 and the first sealing ring 54 to complete the disassembly of the first connecting pipe 5.

[0038] The following describes the disassembly and connection of the upper chamber 3 and the lower chamber 4:

[0039] Reference Figure 2 The lower chamber 4 has a sliding groove 41 on its top surface, and the upper chamber 3 is slidably disposed within the sliding groove 41. A fixing member 8 is provided on the upper chamber 3 to restrict its sliding. When the upper chamber 3 needs to be disassembled for cleaning, first release the fixing member 8 from the upper chamber 3, then slide the upper chamber 3 to separate it from the lower chamber 4. In this embodiment, the fixing member 8 is a bolt. When the upper chamber 3 slides to the predetermined position, the bolt secures the upper chamber 3 to the lower chamber 4. At this time, the bent pipe 52 aligns with the straight pipe 51, completing the installation of the upper chamber 3.

[0040] Furthermore, one end of the slide 41 is open, and the upper chamber 3 slides into the slide 41 from the open end. The other end of the slide 41 has a slot 42. A plug 34 is fixedly connected to the side wall of the upper chamber 3. The upper chamber 3 can slide until the plug 34 is inserted into the slot 42. When the plug 34 is inserted into the slot 42, the fixing member 8 passes through the plug 34 and is screwed onto the lower chamber 4, so that the upper chamber 3 and the lower chamber 4 are fixed to each other. The setting of the plug 34 makes the connection between the upper chamber 3 and the lower chamber 4 more stable.

[0041] In this embodiment, an installation block 35 is fixedly connected to the side of the upper chamber 3 away from the insertion block 34. The installation block 35 is also provided with the aforementioned fixing member 8. The installation block 35 is fixedly connected to the lower chamber 4 through the fixing member 8, so that both ends of the upper chamber 3 are fixed to the lower chamber 4 through the fixing member 8, thus ensuring the connection stability between the upper chamber 3 and the lower chamber 4.

[0042] The following describes the disassembly and connection of the upper chamber 3 and the second connecting pipe 7:

[0043] Reference Figure 1 and Figure 2 The second connecting pipe 7 is provided with a second flange 71. The second connecting pipe 7 is detachably connected to the upper chamber 3 through the second flange 71. Specifically, there is a pair of second flanges 71. One second flange 71 is fixedly connected to the top surface of the upper chamber 3, and the other second flange 71 is fixedly connected to the second connecting pipe 7. When installing the upper chamber 3, the upper chamber 3 is slid into the slide groove 41. When the upper chamber 3 slides to the designated position, the two second flanges 71 are in the same position. Then, tightening the bolts will complete the fixed connection between the second connecting pipe 7 and the upper chamber 3.

[0044] Furthermore, it also includes a frame 9, which can be fixed on the ground. The second connecting pipe 7 and the vacuum pump 6 are slidably mounted on the frame 9. The second connecting pipe 7 and the vacuum pump 6 can slide along the axis of the second flange 71. A second sealing ring 72 is provided between the second flange 71 and the upper chamber 3. When connecting the second connecting pipe 7 and the upper chamber 3, the second sealing ring 72 is first placed between the two second flanges 71, and then the second connecting pipe 7 is slid so that the second flange 71 on the second connecting pipe 7 abuts against the second flange 71 on the upper chamber 3. Then the bolts are tightened. The second sealing ring 72 increases the airtightness between the second connecting pipe 7 and the upper chamber 3.

[0045] Specifically, a collar 91 is fixedly connected to the frame 9. The collar 91 is slidably sleeved on the second connecting pipe 7. The second connecting pipe 7 can be slid by a tool, such as a cylinder, a small jack, or other components. When the second connecting pipe 7 slides, it drives the vacuum pump 6 to slide together, ensuring that the vacuum pump 6 and the second connecting pipe 7 are always connected. In other embodiments, the second connecting pipe 7 and the vacuum pump 6 can be connected by a flexible hose. In this case, the vacuum pump 6 can be fixed on the frame 9, and the sliding of the second connecting pipe 7 does not affect the connection with the vacuum pump 6.

[0046] A limiting ring 73 is provided on the second connecting pipe 7. The limiting ring 73 is located below the collar 91. When the two second flanges 71 are fixed to each other, the limiting ring 73 abuts against the collar 91. By setting the limiting ring 73, the second connecting pipe 7 can be supported to ensure the installation stability of the second connecting pipe 7. In this embodiment, a support block 92 is also provided below the vacuum pump 6. When the two second flanges 71 are fixed to each other, the support block 92 is connected to the vacuum pump 6 to support the vacuum pump 6.

[0047] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A feeding device for a PET crystallizer, characterized in that, include: Storage tank (1); The crystallization tank (2) is connected to the storage tank (1); The upper chamber (3) and the lower chamber (4) are provided, wherein the upper chamber (3) is detachably connected to the top of the lower chamber (4), and the crystallizing tank (2) is connected to the lower chamber (4). The first connecting pipe (5) is n-shaped and one end is located in the upper chamber (3) and the other end is inserted into the lower chamber (4). There is a gap between the first connecting pipe (5) and the inner wall of the upper chamber (3) and the first connecting pipe (5) is detachably connected to the upper chamber (3). A vacuum pump (6) and a second connecting pipe (7), one end of the second connecting pipe (7) is connected to the vacuum pump (6) and the other end is connected to the upper chamber (3) and can be detachably connected.

2. The feeding device for a PET crystallizer according to claim 1, characterized in that, The first connecting pipe (5) includes a straight pipe (51) and a bent pipe (52). The straight pipe (51) is fixedly connected to the lower chamber (4), and the bent pipe (52) is detachably installed on the upper chamber (3). When the upper chamber (3) and the lower chamber (4) are aligned with each other, the straight pipe (51) and the bent pipe (52) are aligned and connected with each other.

3. The feeding device for a PET crystallizer according to claim 2, characterized in that, A first flange (53) is fixedly connected to the bend (52), and the bend (52) is connected to the upper chamber (3) through the first flange (53).

4. The feeding device for a PET crystallizer according to claim 3, characterized in that, A first sealing ring (54) is provided between the first flange (53) and the inner wall of the upper chamber (3).

5. A feeding device for a PET crystallizer according to any one of claims 1 to 4, characterized in that, The lower chamber (4) is provided with a sliding groove (41) on its top surface, and the upper chamber (3) is slidably disposed in the sliding groove (41) and can slide out of the sliding groove (41); A fixing member (8) is provided on the upper chamber (3), and the fixing member (8) is used to restrict the sliding of the upper chamber (3).

6. The feeding device for a PET crystallizer according to claim 5, characterized in that, A slot (42) is provided on the inner wall of one end of the slide (41), and a plug (34) is fixedly connected to the side wall of the upper chamber (3). The upper chamber (3) can slide until the plug (34) is inserted into the slot (42).

7. The feeding device for a PET crystallizer according to claim 1, characterized in that, The second connecting pipe (7) is provided with a second flange (71), and the second connecting pipe (7) is detachably connected to the upper chamber (3) through the second flange (71).

8. The feeding device for a PET crystallizer according to claim 7, characterized in that, It also includes a frame (9), the second connecting pipe (7) and the vacuum pump (6) are slidably disposed on the frame (9), the second connecting pipe (7) and the vacuum pump (6) can slide along the axis of the second flange (71), and a second sealing ring (72) is provided between the second flange (71) and the upper chamber (3).

9. The feeding device for a PET crystallizer according to claim 1, characterized in that, The upper chamber (3) is connected to a drain pipe (32) and a water inlet pipe (31).

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