A dehydration apparatus for preparing plasticizers

Abstract

This invention belongs to the field of plasticizer preparation technology, specifically a dehydration device for plasticizer preparation. Addressing the problems of low efficiency, high energy consumption, and complex equipment in traditional dehydration methods, the present invention proposes the following solution: a frame, with a hydraulic push rod fixedly connected to the center of the top outer wall of the frame via screws. The piston rod of the hydraulic push rod is fixedly connected to a connecting plate. A lower pressure rod is welded to the bottom outer wall of the connecting plate, and a lower pressure plate is welded to the bottom outer wall of the lower pressure rod. Tracks are welded to the inner walls of both sides of the frame, and pulleys are slidably connected to the inner walls of the tracks. This invention uses the hydraulic push rod to drive the lower pressure plate to controllably squeeze the plasticizer in the mesh cylinder. Combined with the filtration effect of the permeable filter bag, it achieves efficient and uniform dehydration. The matching design between the inner diameter of the lower pressure plate and the mesh cylinder ensures uniform pressure distribution, avoids local overpressure or leakage, and helps improve the thoroughness of dehydration and product consistency.

Description

Technical Field

[0001] This utility model relates to the field of plasticizer preparation technology, and in particular to a dehydration device for plasticizer preparation. Background Technology

[0002] Plasticizers are a class of additives widely used in polymer materials such as plastics and rubber, which can significantly improve the flexibility and processing performance of the materials. Dehydration is one of the key steps in the preparation of plasticizers, directly affecting the purity and quality of the product.

[0003] Traditional dehydration methods often employ natural sedimentation, centrifugation, or vacuum dehydration, but these methods suffer from low efficiency, high energy consumption, and complex equipment. For example, natural sedimentation is time-consuming, making it difficult to meet the needs of industrial production; while centrifugation can improve efficiency, it has high equipment investment and maintenance costs and limited adaptability to materials; and while vacuum dehydration can effectively remove moisture, it requires strict equipment sealing, is complex to operate, and poses safety hazards. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a dehydration device for plasticizer preparation, which overcomes the shortcomings of the prior art and effectively solves the problems of low efficiency, high energy consumption and complex equipment in traditional dehydration methods.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A dehydration device for preparing plasticizers includes a frame. A hydraulic push rod is fixedly connected to the center of the top outer wall of the frame by screws. The piston rod of the hydraulic push rod is fixedly connected to a connecting plate. A pressure rod is welded to the bottom outer wall of the connecting plate, and a pressure plate is welded to the bottom outer wall of the pressure rod. Tracks are welded to the inner walls of both sides of the frame, and pulleys are slidably connected to the inner walls of the tracks. A water collection cylinder is fixedly connected to the top outer wall of the pulley by screws. A positioning ring is welded to the bottom inner wall of the water collection cylinder, and a mesh cylinder is placed on the inner wall of the positioning ring.

[0006] Preferably, a permeable cloth bag for collecting plasticizer is placed on the inner wall of the bottom of the mesh cylinder, and the outer diameter of the pressure plate is adapted to the inner diameter of the mesh cylinder.

[0007] Preferably, the top outer wall of the positioning ring is provided with symmetrically distributed limiting grooves, and limiting blocks are welded to the bottom of the outer walls on both sides of the mesh cylinder, with the limiting blocks closely attached to the inner wall of the limiting groove.

[0008] Preferably, the top of the outer walls on both sides of the mesh cylinder is welded with side plates, and linear bearings are installed on the inner walls at both ends of the side plates. Guide rods are welded to both ends of the bottom outer wall of the connecting plate, and the guide rods are slidably connected to the inner walls of the linear bearings.

[0009] Preferably, one side of the frame is welded with adjacent U-shaped limiting plates, and the water collection tube is tightly attached to the inner wall of the U-shaped limiting plate.

[0010] Preferably, a drain pipe with a valve is welded to the bottom of one side of the outer wall of the water collection cylinder.

[0011] Preferably, a drain hopper is welded between the two tracks, and the drain hopper is located below the drain pipe.

[0012] The beneficial effects of this utility model are as follows: 1. The dehydration device for plasticizer preparation designed in this paper uses a hydraulic pusher to drive the lower pressure plate to controllably squeeze the plasticizer in the mesh cylinder. Combined with the filtration effect of the permeable cloth bag, it can achieve efficient and uniform dehydration. The design of the lower pressure plate and the inner diameter of the mesh cylinder are matched to ensure uniform pressure distribution and avoid local overpressure or leakage, which helps to improve the thoroughness of dehydration and product consistency. 2. The dehydration device for plasticizer preparation designed in this paper achieves precise positioning and stable guidance of the screen cylinder through the matching of the limiting block and the positioning ring with the limiting groove, as well as the sliding connection between the guide rod and the linear bearing. This effectively prevents deviation or vibration during the dehydration process. Furthermore, the sliding matching structure between the track and the pulley allows the water collection cylinder to move smoothly along the track, facilitating loading and unloading and significantly reducing the complexity of operation. Attached Figure Description

[0013] Figure 1 This invention provides a schematic diagram of the overall structure of a dehydration device for preparing plasticizers. Figure 1 ; Figure 2 This is a front view of the structure of a dehydration device for preparing plasticizers according to the present invention during plasticizer dehydration. Figure 3 This is a rear view of the structure of a dehydration device for preparing plasticizers according to the present invention during plasticizer dehydration. Figure 4 This is a schematic diagram of the internal connection structure of the water collection cylinder of a dehydration device for preparing plasticizers proposed in this utility model.

[0014] In the diagram: 1. Frame; 2. Hydraulic push rod; 3. Connecting plate; 4. Lower pressure rod; 5. Lower pressure plate; 6. Track; 7. Pulley; 8. Water collection cylinder; 9. Positioning ring; 10. Net cylinder; 11. Limiting block; 12. Side plate; 13. Linear bearing; 14. Guide rod; 15. U-shaped limiting plate; 16. Drainage pipe; 17. Drainage hopper. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Reference Figures 1-4 Example 1: A dehydration device for preparing plasticizers includes a frame 1. A hydraulic push rod 2 is fixedly connected to the center of the top outer wall of the frame 1 by screws. The piston rod of the hydraulic push rod 2 is fixedly connected to a connecting plate 3. A lower pressure rod 4 is welded to the bottom outer wall of the connecting plate 3. A lower pressure plate 5 is welded to the bottom outer wall of the lower pressure rod 4.

[0017] The hydraulic push rod 2 is fixed to the top center of the frame 1 by screws. The piston rod of the hydraulic push rod 2 is rigidly connected to the connecting plate 3. The lower pressure rod 4 and the lower pressure plate 5 welded to the bottom of the connecting plate 3 are made of stainless steel and the surface is polished to reduce frictional resistance.

[0018] In this embodiment, the lower pressure plate 5 is driven by the hydraulic push rod 2 to perform controlled extrusion of the plasticizer in the mesh cylinder 10. Combined with the filtration effect of the permeable bag, efficient and uniform dehydration can be achieved. The design of the lower pressure plate 5 and the inner diameter of the mesh cylinder 10 ensures uniform pressure distribution and avoids local overpressure or leakage, which helps to improve the thoroughness of dehydration and product consistency.

[0019] In embodiment 2, rails 6 are welded to the inner walls of both sides of the frame 1, and pulleys 7 are slidably connected to the inner walls of the rails 6. A water collection cylinder 8 is fixedly connected to the top outer wall of the pulleys 7 by screws. A positioning ring 9 is welded to the bottom inner wall of the water collection cylinder 8, and a mesh cylinder 10 is placed on the inner wall of the positioning ring 9. A permeable cloth bag for collecting plasticizer is placed on the bottom inner wall of the mesh cylinder 10, and the outer diameter of the lower pressure plate 5 is adapted to the inner diameter of the mesh cylinder 10.

[0020] The rails 6 welded to the inner walls on both sides of the frame 1 have a grooved structure, and the pulleys 7 are slidably connected to the rails 6. The positioning rings 9 welded to the bottom of the water collection cylinder 8 are used to place the mesh cylinder 10. The permeable cloth bag inside the mesh cylinder 10 is made of polyester fiber with a pore size of 50-100μm, which can effectively trap plasticizer particles while allowing water to seep out quickly.

[0021] In this embodiment, the precise positioning and stable guidance of the mesh cylinder 10 are achieved by the limiting block 11 and the positioning ring 9 in the limiting groove, and the sliding connection between the guide rod 14 and the linear bearing 13, which effectively prevents the deviation or vibration during the dehydration process. Furthermore, the sliding cooperation structure between the track 6 and the pulley 7 allows the water collection cylinder 8 to move smoothly along the track 6, which facilitates loading and unloading and greatly reduces the complexity of operation.

[0022] The positioning ring 9 has symmetrically distributed limiting grooves on its top outer wall, and limiting blocks 11 are welded to the bottom of both sides of the outer wall of the mesh cylinder 10, with the limiting blocks 11 tightly attached to the inner wall of the limiting groove. Side plates 12 are welded to the top of both sides of the outer wall of the mesh cylinder 10, and linear bearings 13 are installed on the inner walls of both ends of the side plates 12. Guide rods 14 are welded to both ends of the bottom outer wall of the connecting plate 3, and the guide rods 14 are slidably connected to the inner wall of the linear bearings 13.

[0023] The limiting block 11 corresponds one-to-one with the limiting groove of the positioning ring 9. During installation, the mesh cylinder 10 needs to be rotated until the limiting block 11 is embedded in the limiting groove to ensure that the mesh cylinder 10 is vertically fixed. The linear bearing 13 on the side plate 12 slides with the guide rod 14 to ensure a smooth and unobstructed pressing process.

[0024] The outer wall of one side of the frame 1 is welded with adjacent U-shaped limiting plates 15, and the water collection tube 8 is tightly attached to the inner wall of the U-shaped limiting plate 15.

[0025] A drain pipe 16 with a valve is welded to the bottom of one side of the outer wall of the water collection cylinder 8, and a drain hopper 17 is welded between the two tracks 6, with the drain hopper 17 located below the drain pipe 16.

[0026] The drain pipe 16 is used to discharge wastewater. The U-shaped limiting plate 15 is attached to the contact surface of the water collecting cylinder 8, which restricts the water collecting cylinder 8 from continuing to move in the direction of the U-shaped limiting plate 15.

[0027] Working principle: After the hydraulic push rod 2 is activated, the piston rod of the hydraulic push rod 2 pushes the connecting plate 3 and the lower pressure rod 4 downward. At this time, the guide rod 14 slides along the linear bearing 13 to ensure that the lower pressure plate 5 moves vertically and avoids uneven load. The lower pressure plate 5 enters the mesh cylinder 10 and applies uniform pressure to the plasticizer in the permeable bag. The water in the plasticizer seeps out through the micropores of the bag to the bottom of the water collection cylinder 8 and is discharged into the drainage hopper 17 below through the drain pipe 16. After dehydration is completed, the hydraulic push rod 2 is reset. The operator uses the pulley 7 to move the water collection cylinder 8 out of the frame 1 to the unloading position along the track 6 and removes the dehydrated plasticizer.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A dewatering device for plasticizer production comprising a frame (1), characterized in that, A hydraulic push rod (2) is fixedly connected to the center of the top outer wall of the frame (1) by screws, and a connecting plate (3) is fixedly connected to the piston rod of the hydraulic push rod (2). A lower pressure rod (4) is welded to the bottom outer wall of the connecting plate (3), and a lower pressure plate (5) is welded to the bottom outer wall of the lower pressure rod (4). Tracks (6) are welded to the inner walls on both sides of the frame (1), and pulleys (7) are slidably connected to the inner wall of the track (6). A water collection cylinder (8) is fixedly connected to the top outer wall of the pulley (7) by screws. A positioning ring (9) is welded to the bottom inner wall of the water collection cylinder (8), and a mesh cylinder (10) is placed on the inner wall of the positioning ring (9).

2. The dehydration apparatus for preparing plasticizers according to claim 1, characterized in that, The bottom inner wall of the mesh cylinder (10) is provided with a permeable cloth bag for collecting plasticizer, and the outer diameter of the pressure plate (5) is matched with the inner diameter of the mesh cylinder (10).

3. The dehydration apparatus for preparing plasticizers according to claim 1, characterized in that, The top outer wall of the positioning ring (9) is provided with symmetrically distributed limiting grooves, and the bottom of the outer walls on both sides of the mesh cylinder (10) is welded with limiting blocks (11), which are tightly attached to the inner wall of the limiting groove.

4. The dehydration apparatus for preparing plasticizers according to claim 1, characterized in that, The top of the outer walls on both sides of the mesh cylinder (10) is welded with side plates (12), and the inner walls at both ends of the side plates (12) are equipped with linear bearings (13). The bottom outer walls of the connecting plate (3) are welded with guide rods (14), and the guide rods (14) are slidably connected to the inner wall of the linear bearings (13).

5. The dehydration apparatus for preparing a plasticizer according to claim 1, characterized in that, The frame (1) has adjacent U-shaped limiting plates (15) welded to one outer wall, and the water collection tube (8) is tightly attached to the inner wall of the U-shaped limiting plate (15).

6. The dehydration apparatus for preparing a plasticizer according to claim 1, characterized in that, A drain pipe (16) with a valve is welded to the bottom of the outer wall of one side of the water collection cylinder (8).

7. The dehydration apparatus for preparing a plasticizer according to claim 1, characterized in that, A drain hopper (17) is welded between the two tracks (6), and the drain hopper (17) is located below the drain pipe (16).

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