Impurity filtering and purifying equipment for propylene glycol diacetate production

Abstract

The utility model relates to the technical field of propylene glycol diacetate production equipment, and discloses an impurity filtering and purifying device for propylene glycol diacetate production, which comprises a tank body and an air pump fixedly arranged above the tank body, a telescopic rod is arranged in the tank body and is positioned below the air pump, the top of the telescopic rod is fixedly connected with the air pump, and the top of the telescopic rod is fixedly connected with the air pump. A pressing plate is fixedly connected to the bottom end of the telescopic rod, a filter screen is fixedly connected in the tank body, the pressing plate is located in the filter screen, a feeding opening is fixedly connected to the tank body, the feeding opening communicates with the filter screen, the feeding opening penetrates through the inner wall of the tank body and extends to the outside, a sewage draining opening is formed in the bottom face of the filter screen, and a discharging pipe is fixedly connected to the bottom face of the tank body; according to the raw material filtering device, due to the fact that the anti-blocking assembly is arranged, the anti-blocking assembly moves up and down along with the pressing plate, and when the end, close to the filtering net, of the pushing block is inserted into the filtering holes of the filtering net, raw materials in the filtering holes are pushed out, and the raw materials are prevented from blocking the filtering holes.

Description

Technical Field

[0001] This utility model relates to the technical field of propylene glycol diethyl acetate production equipment, and more specifically to impurity filtration and purification equipment for propylene glycol diethyl acetate production. Background Technology

[0002] Propylene glycol diethyl acetate is an environmentally friendly, high-boiling-point solvent widely used in coatings, inks, and pharmaceuticals. It is also a common raw material for polymer materials, possessing emulsifying, wetting, and solubilizing properties. In pharmaceutical manufacturing, it is used as an emulsifier, wetting agent, solubilizer, and transdermal penetration enhancer in the production of emulsions, creams, injections, and patches. Similar applications exist in the daily chemical industry, such as in the manufacture of creams and shampoos. In the food industry, it is primarily used as a solvent and solubilizer in the formulation of food flavorings.

[0003] The existing device has the following problems when in use. First, the existing device filters impurities in the raw material by pressure filtration. During the filtration process, the raw material with a large volume is easy to adhere to the filter hole, causing the filter hole to be blocked and affecting the filtration effect. Second, the existing device discharges impurities by flipping the baffle plate. When there are too many impurities accumulated on the baffle plate, it will obstruct the baffle plate, causing the baffle plate to be stuck when flipping, which will affect the discharge of impurities. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an impurity filtration and purification device for the production of propylene glycol diacetate, so as to solve the problem in the background art that large raw materials are easy to adhere to the filter pores, causing filter pore blockage and affecting the filtration effect.

[0005] This utility model provides the following technical solution:

[0006] A purification and filtration device for impurities produced from propylene glycol diacetate includes a tank and an air pump fixedly installed above the tank. A telescopic rod is installed inside the tank, located below the air pump. The top of the telescopic rod is fixedly connected to the air pump, and a pressure plate is fixedly connected to the bottom of the telescopic rod. A filter screen is fixedly connected inside the tank, with the pressure plate located inside the filter screen. A feed inlet is fixedly connected to the tank, communicating with the filter screen. The feed inlet penetrates the inner wall of the tank and extends to the outside. A drain outlet is provided on the bottom surface of the filter screen. A discharge pipe is fixedly connected to the bottom surface of the tank, communicating with the tank. Anti-clogging components are provided around the pressure plate, and a slag discharge component is fixedly connected to the bottom surface of the filter screen.

[0007] Furthermore, the anti-blocking component includes a connecting ring located on the periphery of the pressure plate and fixedly connected to the periphery of the pressure plate. A plurality of placement slots are provided on the periphery of the connecting ring, and a compression spring is fixedly connected in the placement slot. The other end of the compression spring is fixedly connected to a limiting ring, and a push block is fixedly connected to the inner wall of the limiting ring. The push block penetrates the inner wall of the placement slot and extends to the outside.

[0008] Furthermore, the slag discharge assembly includes a connecting pipe and a baffle. The connecting pipe is located below the filter screen and is fixedly connected to the bottom surface of the filter screen. The baffle is located inside the connecting pipe and is rotatably connected to the connecting pipe via a rotating shaft. First rotating rods are fixedly connected to both sides of the baffle. Connecting rods are sleeved around the periphery of the first rotating rods and are rotatably connected to the first rotating rods. The ends of the two connecting rods away from the first rotating rods are rotatably connected to the same connecting column. Guide plates are provided on both sides of the connecting pipe. The top surface of the guide plate is fixedly connected to the bottom surface of the filter screen. A sliding groove is formed on the side wall of the guide plate. The connecting column is slidably connected to the inner wall of the sliding groove. A T-shaped connector is sleeved on the connecting column and is fixedly connected to the connecting column. An electric push rod is fixedly connected to the bottom surface of the filter screen, and the telescopic end of the electric push rod is fixedly connected to the T-shaped connector.

[0009] Furthermore, the connecting pipe has a through groove that communicates with the sliding groove, the connecting column passes through the through groove and extends into the sliding groove, and the bottom surface of the connecting pipe has a relief groove that communicates with the outside, and the first rotating rod is located in the relief groove.

[0010] Furthermore, the outer diameter of the connecting ring is smaller than the inner diameter of the filter screen.

[0011] Furthermore, the end of the pusher block closest to the filter screen is made of silicone.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. This utility model incorporates an anti-clogging component, which moves up and down with the pressure plate. When the end of the push block near the filter screen is inserted into the filter hole of the filter screen, it pushes out the raw material in the filter hole, thus preventing the raw material from clogging the filter hole.

[0014] 2. By setting up a slag discharge assembly, the telescopic end of the electric push rod drives the connecting column to slide in the groove through the T-shaped connector. The connecting column drives the connecting rod to rotate, and the connecting rod drives the baffle to open downward around the axis through the first rotating rod, thereby discharging the impurities on the baffle from the discharge pipe. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the filter area of ​​this utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the filter screen of this utility model;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the connecting ring area of ​​this utility model;

[0019] Figure 5 This is a schematic diagram of the baffle area structure of this utility model. Figure 1 ;

[0020] Figure 6 This is a schematic diagram of the baffle area structure of this utility model. Figure 2 ;

[0021] Figure 7 This utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0022] The attached diagram is labeled as follows: 1. Tank body; 2. Air pump; 3. Telescopic rod; 4. Pressure plate; 5. Filter screen; 6. Feed inlet; 7. Drain outlet; 8. Discharge pipe; 9. Connecting ring; 10. Placement groove; 11. Compression spring; 12. Limiting ring; 13. Push block; 14. Connecting pipe; 15. Baffle; 16. First rotating rod; 17. Connecting rod; 18. Connecting column; 19. Guide plate; 20. Slide groove; 21. T-shaped connector; 22. Electric push rod. Detailed Implementation

[0023] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0024] Appendix Figures 1-7 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-7 The present invention will be further described below.

[0025] See attached document Figures 1-7The impurity filtration and purification equipment for the production of propylene glycol diacetate includes a tank 1 and an air pump 2 fixedly installed above the tank 1. A telescopic rod 3 is installed inside the tank 1, located below the air pump 2. The top of the telescopic rod 3 is fixedly connected to the air pump 2, and a pressure plate 4 is fixedly connected to the bottom of the telescopic rod 3. A filter screen 5 is fixedly connected inside the tank 1, and the pressure plate 4 is located inside the filter screen 5. A feed inlet 6 is fixedly connected to the tank 1, communicating with the filter screen 5. The feed inlet 6 penetrates the inner wall of the tank 1 and extends to the outside. A sludge discharge port 7 is opened on the bottom surface of the filter screen 5. A discharge pipe 8 is fixedly connected to the bottom surface of the tank 1, communicating with the tank 1. Anti-clogging components are provided around the pressure plate 4, and a slag discharge component is fixedly connected to the bottom surface of the filter screen 5.

[0026] In this embodiment, the inner wall of the filter screen 5 is provided with a number of equally spaced filter holes, and the diameter of the filter holes is larger than the diameter of the push block 13.

[0027] Specifically, the anti-blocking component includes a connecting ring 9, which is located on the periphery of the pressure plate 4 and is fixedly connected to the periphery of the pressure plate 4. Several placement slots 10 are provided on the periphery of the connecting ring 9. A compression spring 11 is fixedly connected in the placement slot 10. The other end of the compression spring 11 is fixedly connected to a limiting ring 12. A push block 13 is fixedly connected to the inner wall of the limiting ring 12. The push block 13 penetrates the inner wall of the placement slot 10 and extends to the outside.

[0028] Specifically, the slag discharge assembly includes a connecting pipe 14 and a baffle 15. The connecting pipe 14 is located below the filter screen 5 and is fixedly connected to the bottom surface of the filter screen 5. The baffle 15 is located inside the connecting pipe 14 and is rotatably connected to the connecting pipe 14 via a rotating shaft. First rotating rods 16 are fixedly connected to both sides of the baffle 15. Connecting rods 17 are sleeved around the periphery of the first rotating rods 16 and are rotatably connected to the first rotating rods 16. The ends of the two connecting rods 17 furthest from the first rotating rods 16 are connected to each other. The connecting column 18 is rotatably connected to the connecting pipe 14. Guide plates 19 are respectively provided on both sides of the connecting pipe 14. The top surface of the guide plate 19 is fixedly connected to the bottom surface of the filter screen 5. The side wall of the guide plate 19 is provided with a sliding groove 20. The connecting column 18 is slidably connected to the inner wall of the sliding groove 20. A T-shaped connector 21 is sleeved on the connecting column 18. The T-shaped connector 21 is fixedly connected to the connecting column 18. An electric push rod 22 is fixedly connected to the bottom surface of the filter screen 5. The telescopic end of the electric push rod 22 is fixedly connected to the T-shaped connector 21.

[0029] Specifically, the connecting pipe 14 has a through groove that communicates with the slide groove 20, the connecting post 18 passes through the through groove and extends into the slide groove 20, the bottom surface of the connecting pipe 14 has a relief groove that communicates with the outside, and the first rotating rod 16 is located in the relief groove.

[0030] In this embodiment, the through groove and the clearance groove provide clearance space for the movement of the connecting column 18 and the first rotating rod 16, so as to avoid the connecting column 18 and the first rotating rod 16 from abutting against the connecting pipe 14 and affecting the opening and closing of the baffle 15.

[0031] Specifically, the outer diameter of the connecting ring 9 is smaller than the inner diameter of the filter screen 5.

[0032] In this embodiment, the connecting ring 9 is prevented from abutting against the inner wall of the filter screen 5 when it moves with the pressure plate 4, thus affecting the movement of the pressure plate 4.

[0033] Specifically, the end of push block 13 near filter screen 5 is made of silicone.

[0034] In this embodiment, the silicone material is soft, making it easy for the pusher block 13 to deform as it moves with the pressure plate 4.

[0035] The working principle and usage process of this utility model are as follows: When using this device, the user injects the raw material to be filtered through the inlet 6. When the raw material enters the filter screen 5, the air pump 2 is driven to run. At this time, the telescopic rod 3 drives the pressure plate 4 to move up and down, applying pressure to the raw material in the filter screen 5 and accelerating the discharge of the raw material from the filter screen 5. Simultaneously, the pressure plate 4 drives the connecting ring 9 to move up and down. The connecting ring 9 drives the compression spring 11, the limiting ring 12, and the push block 13 in the placement groove 10 to move up and down. When the push block 13 moves with the pressure plate 4... When the pressure plate 4 moves to the filter hole of the filter screen 5, the compressed spring 11 rebounds and drives the limiting ring 12 to move outward. The limiting ring 12 drives the push block 13 to move away from the compression spring 11. At this time, the end of the push block 13 close to the filter screen 5 is inserted into the filter hole of the filter screen 5, pushing out the raw material in the filter hole to avoid the raw material clogging the filter hole. When the pressure plate 4 continues to move, the push block 13 will undergo a slight deformation and move out from the corresponding filter hole and abut against the inner wall of the filter screen 5. The raw material after filtering the impurities flows out from the discharge pipe 8.

[0036] When the raw material filtration is complete and impurities need to be discharged, the electric push rod 22 is activated. The telescopic end of the electric push rod 22 drives the connecting column 18 to slide in the slide groove 20 through the T-shaped connector 21. The connecting column 18 drives the connecting rod 17 to rotate. The connecting rod 17 drives the baffle 15 to open downward around the axis through the first rotating rod 16, thereby discharging the impurities on the baffle 15 from the discharge pipe 8.

[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A purification device for impurities produced from propylene glycol diacetate, comprising a tank (1) and an air pump (2) fixedly installed above the tank (1), characterized in that: The tank (1) is equipped with a telescopic rod (3), which is located below the air pump (2). The top of the telescopic rod (3) is fixedly connected to the air pump (2), and the bottom of the telescopic rod (3) is fixedly connected to a pressure plate (4). The tank (1) is fixedly connected to a filter screen (5), and the pressure plate (4) is located inside the filter screen (5). The tank (1) is fixedly connected to a feed inlet (6), which is connected to the filter screen (5). The feed inlet (6) penetrates the inner wall of the tank (1) and extends to the outside. The bottom surface of the filter screen (5) is provided with a drain outlet (7). The bottom surface of the tank (1) is fixedly connected to a discharge pipe (8), which is connected to the tank (1). The pressure plate (4) is provided with an anti-clogging component, and the bottom surface of the filter screen (5) is fixedly connected to a slag discharge component.

2. The impurity filtration and purification equipment for the production of propylene glycol diacetate according to claim 1, characterized in that: The anti-blocking component includes a connecting ring (9), which is located on the periphery of the pressure plate (4). The connecting ring (9) is fixedly connected to the periphery of the pressure plate (4). A plurality of placement slots (10) are provided on the periphery of the connecting ring (9). A compression spring (11) is fixedly connected in the placement slot (10). The other end of the compression spring (11) is fixedly connected to a limiting ring (12). A push block (13) is fixedly connected to the inner wall of the limiting ring (12). The push block (13) penetrates the inner wall of the placement slot (10) and extends to the outside.

3. The impurity filtration and purification equipment for the production of propylene glycol diacetate according to claim 1, characterized in that: The slag discharge assembly includes a connecting pipe (14) and a baffle (15). The connecting pipe (14) is located below the filter screen (5) and is fixedly connected to the bottom surface of the filter screen (5). The baffle (15) is located inside the connecting pipe (14) and is rotatably connected to the connecting pipe (14) via a rotating shaft. First rotating rods (16) are fixedly connected to both sides of the baffle (15). Connecting rods (17) are sleeved around the periphery of the first rotating rods (16) and are rotatably connected to the first rotating rods (16). The ends of the two connecting rods (17) away from the first rotating rods (16) are connected to each other. The same connecting column (18) is rotatably connected. Guide plates (19) are respectively provided on both sides of the connecting pipe (14). The top surface of the guide plate (19) is fixedly connected to the bottom surface of the filter screen (5). A sliding groove (20) is opened on the side wall of the guide plate (19). The connecting column (18) is slidably connected to the inner wall of the sliding groove (20). A T-shaped connector (21) is sleeved on the connecting column (18). The T-shaped connector (21) is fixedly connected to the connecting column (18). An electric push rod (22) is fixedly connected to the bottom surface of the filter screen (5). The telescopic end of the electric push rod (22) is fixedly connected to the T-shaped connector (21).

4. The impurity filtration and purification equipment for the production of propylene glycol diacetate according to claim 3, characterized in that: The connecting pipe (14) has a through groove that communicates with the sliding groove (20). The connecting column (18) passes through the through groove and extends into the sliding groove (20). The bottom surface of the connecting pipe (14) has a relief groove that communicates with the outside. The first rotating rod (16) is located in the relief groove.

5. The impurity filtration and purification equipment for the production of propylene glycol diacetate according to claim 2, characterized in that: The outer diameter of the connecting ring (9) is smaller than the inner diameter of the filter screen (5).

6. The impurity filtration and purification equipment for the production of propylene glycol diacetate according to claim 2, characterized in that: The end of the pusher (13) near the filter screen (5) is made of silicone.

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