A device for precisely filtering BOPP raw material melt

Abstract

The utility model discloses a kind of equipment of BOPP raw material solution body precision filtration, it is related to BOPP raw material solution body processing technical field, including tank body component and filter assembly, the top of tank body component is equipped with upper cover component, and the bottom of tank body component is equipped with lower cover component, the filter assembly is vertically erected in the inside intermediate of tank body component.This equipment of BOPP raw material solution body precision filtration, by tank body component, upper cover component, lower cover component and filter assembly mutual cooperation realizes the efficient precision filtration of BOPP raw material solution body, wherein, the electric heating design of tank body component can ensure that the temperature in tank is uniform and stable, avoid the problem of film uneven thickness due to uneven heating, filter assembly uses 20um cylindrical flat net equidistance arrangement, compared with traditional 25um disc filter screen, not only higher filtering precision, and longer service life, greatly reduce replacement frequency and cost, to ensure the practicality of device.

Description

Technical Field

[0001] This utility model relates to the field of BOPP raw material melt processing technology, specifically a device for precision filtration of BOPP raw material melt. Background Technology

[0002] The raw material melt of BOPP (biaxially oriented polypropylene film) is a high molecular polymer with polypropylene (PP) as the main component.

[0003] The original raw material melt precision filter in the BOPP production line uses a 25um disc filter screen. This type of filter screen is expensive, costing approximately 50,000 RMB per set of 65 screens, and can only be used for one month, making it very cost-effective. Furthermore, installation is complex; even slight carelessness can lead to poor sealing between the screens, causing internal leakage. Internal leakage results in frequent membrane rupture, causing significant losses and trouble in production. The filter outlet and melting pipe use flange connections, requiring the removal of 12 hexagonal screws each time the filter is replaced, which is extremely time-consuming and labor-intensive. The filter is heated by an electric heating coil, which easily leads to uneven heating inside the filter, resulting in uneven membrane thickness and severely affecting product quality. Utility Model Content

[0004] The purpose of this invention is to provide a device for precision filtration of BOPP raw material melt, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for precision filtration of BOPP raw material melt, comprising a tank component and a filter assembly. The top of the tank component is equipped with an upper cover component, and the bottom of the tank component is equipped with a lower cover component. The filter assembly is vertically mounted in the middle of the interior of the tank component. The filter assembly includes a filter core rod, a connecting pipe, a diversion valve, a feed pump, and a discharge pump. Both the upper and lower ends of the filter core rod are connected to the connecting pipe, and the end of the connecting pipe away from the filter core rod is connected to and installed with a diversion valve. The bottom of one diversion valve at the upper end of the filter core rod is connected to and installed with a feed pump, and the top of one diversion valve at the lower end of the filter core rod is connected to and installed with a discharge pump. Moreover, the interior of the filter core rod uses 20µm cylindrical flat mesh arranged at equal intervals.

[0006] Furthermore, the tank component includes an electric heating tank, a heat transfer oil inlet, a heat transfer oil outlet, a material inlet valve pipe, and a material outlet valve pipe. The heat transfer oil inlet is horizontally arranged on the lower front surface of the electric heating tank, and the heat transfer oil outlet is horizontally arranged on the upper front surface of the electric heating tank. The material inlet valve pipe is horizontally arranged on the lower side of the electric heating tank, and the material outlet valve pipe is horizontally arranged on the upper side of the side of the electric heating tank away from the material inlet valve pipe.

[0007] Furthermore, the feed pump and the material inlet valve pipe are connected and fixed by a flange structure, and the material outlet valve pipe and the material outlet valve pipe are connected and fixed by a flange structure.

[0008] Furthermore, the upper cover component includes an upper cover body, a buffer plate, and an exhaust valve. The top surface of the upper cover body is provided with a buffer plate, and an exhaust valve is vertically installed through one end of the top of the buffer plate.

[0009] Furthermore, the top cover is fixed to the top of the electric heating tank using a flange structure, and the lower end of the exhaust valve passes through the top cover and connects to the interior of the electric heating tank.

[0010] Furthermore, the lower cover component includes a lower cover body, a support frame, and a grounding seat. The support frame is horizontally connected and installed at one end of the bottom edge of the lower cover body, and the grounding seat is installed at the bottom of the end of the support frame away from the lower cover body.

[0011] Furthermore, the lower cover is connected and fixed to the bottom of the electric heating tank by a flange structure, and the support frame is distributed in a ring array structure with the lower cover as the center and four sets are provided. The four opposite corners of the bottom of the grounding seat are provided with holes for bolt installation.

[0012] Furthermore, the filter core rod and connecting pipe are arranged in a ring array structure with the diverter valve as the center, and there are six sets of them. The filter core rod, connecting pipe and diverter valve are all connected by quick connectors.

[0013] This invention provides a device for precision filtration of BOPP raw material melt, which has the following beneficial effects: 1. This utility model, by setting the filter assembly inside the tank structure, utilizes a diversion valve and six sets of connecting pipes to arrange the filter cores in parallel, allowing the BOPP raw material solution to be evenly dispersed into each filter core during the filtration process, effectively improving filtration efficiency. Compared to traditional 25um disc filters, the equidistant arrangement of 20um cylindrical flat mesh inside the filter core not only reduces costs but also significantly extends service life, reducing the hassle and production costs of frequent filter replacements. Furthermore, the quick-connect couplings used for the filter cores, connecting pipes, and diversion valves make the assembly and disassembly of the filter assembly extremely convenient. When the filter cores need to be replaced or cleaned, operators can quickly complete the operation without removing multiple screws as with traditional filters, greatly saving time and labor costs.

[0014] 2. This utility model, through the structural design of the tank components, achieves precise temperature control of the internal filter components using a heat transfer oil circulation heating method. By utilizing the electric heating tank's own structure, it effectively solves the problem of uneven heating caused by traditional heating methods, ensuring the uniformity of the filter's internal temperature and avoiding uneven film thickness caused by uneven heating, significantly improving product quality. Simultaneously, the heat transfer oil circulation heating method also has higher thermal efficiency, reducing energy consumption, saving production costs for enterprises, and further improving product quality. Furthermore, the flange structure connection between the feed pump and the material inlet valve pipe, and between the discharge pump and the material outlet valve pipe, not only simplifies installation but also provides good sealing performance, effectively preventing internal leakage, reducing the risk of film rupture, ensuring the continuity and stability of production, and also providing stable structural support for the filter components inside the tank components.

[0015] 3. This utility model, through the structural arrangement of the upper and lower cover components, specifically the exhaust valve design in the upper cover component, can promptly discharge gas generated inside the tank, preventing abnormal pressure caused by gas accumulation and ensuring the safe operation of the equipment. Simultaneously, the buffer plate protects the top structure of the entire device. The support frame and grounding base design in the lower cover component provide stable support for the equipment, and the bolt mounting holes on the grounding base allow for easy fixing of the equipment to the ground, enhancing its overall stability. Furthermore, the circular array distribution of the support frame further improves the load-bearing capacity of the equipment. The above structural design not only optimizes… The efficient space utilization of the equipment also makes it more stable and reliable during operation, effectively reducing the risk of equipment tipping over due to vibration or external forces. At the same time, this structural design facilitates equipment maintenance and repair, allowing staff to more easily access various components for necessary inspections and repairs, thus ensuring long-term stable operation and reducing the company's operating costs. In addition, the equipment adopts a modular design concept, with tight connections between components that are easy to disassemble. This not only facilitates the transportation and installation of the equipment but also allows for more flexible adjustments to component configurations during upgrades or modifications, meeting diverse needs in different production scenarios. Attached Figure Description

[0016] Figure 1 This is a side-view structural diagram of the main body of the device for precision filtering of BOPP raw material melt according to the present invention. Figure 2 This is a schematic diagram of the internal structure of the support body of the device for precision filtering of BOPP raw material melt according to this utility model. Figure 3 This is a three-dimensional structural diagram of the tank components of a device for precision filtering BOPP raw material melt according to this utility model. Figure 4 This is a three-dimensional structural diagram of the upper cover component of a device for precision filtering of BOPP raw material melt according to this utility model. Figure 5 This is a three-dimensional structural diagram of the lower cover component of a device for precision filtering of BOPP raw material melt according to this utility model. Figure 6 This is a three-dimensional structural diagram of the filter assembly of a device for precision filtering of BOPP raw material melt according to the present invention.

[0017] In the diagram: 1. Tank body components; 101. Electric heating tank body; 102. Heat transfer oil inlet; 103. Heat transfer oil outlet; 104. Material inlet valve pipe; 105. Material outlet valve pipe; 2. Upper cover components; 201. Upper cover body; 202. Buffer plate; 203. Exhaust valve; 3. Lower cover components; 301. Lower cover body; 302. Support frame; 303. Grounding seat; 4. Filter assembly; 401. Filter core rod; 402. Connecting pipe; 403. Diverter valve; 404. Feed pump; 405. Discharge pump. Detailed Implementation

[0018] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0019] like Figures 1 to 6As shown, a device for precision filtration of BOPP raw material melt includes a tank component 1 and a filter assembly 4. A top cover component 2 is installed on the top of the tank component 1, and a bottom cover component 3 is installed on the bottom of the tank component 1. The filter assembly 4 is vertically mounted inside the middle of the tank component 1. The filter assembly 4 includes a filter core rod 401, a connecting pipe 402, a diversion valve 403, a feed pump 404, and a discharge pump 405. Both the upper and lower ends of the filter core rod 401 are connected to the connecting pipe 402, and the end of the connecting pipe 402 away from the filter core rod 401 is connected to the diversion valve 403. A group of diversion valves 403 at the upper end of the filter core rod 401 is connected to the bottom of the feed pump 404, and a group of diversion valves 403 at the lower end of the filter core rod 401 is connected to the top of the discharge pump 405. The filter core 401 is internally equipped with 20µm cylindrical flat mesh arranged at equal intervals. The filter core 401 and connecting pipe 402 are distributed in a ring array structure with the diversion valve 403 as the center, and there are six sets of such arrays. The filter core 401, connecting pipe 402 and diversion valve 403 are connected by quick connectors. The diversion valve 403 controls the flow of the raw material solution, so that the solution can flow into each filter core 401 evenly and stably. This design effectively avoids the problem of local accumulation or poor flow of the solution during the filtration process, ensuring the uniformity and consistency of the filtration effect. At the same time, the equidistant arrangement of the 20µm cylindrical flat mesh not only increases the filtration area and improves the filtration efficiency, but also effectively intercepts small impurities in the solution, ensuring the purity of the output. like Figures 1 to 6 As shown, the tank component 1 includes an electrically heated tank body 101, a heat transfer oil inlet 102, a heat transfer oil outlet 103, a material inlet valve pipe 104, and a material outlet valve pipe 105. The heat transfer oil inlet 102 is horizontally arranged on the lower front surface of the electrically heated tank body 101, and the heat transfer oil outlet 103 is horizontally arranged on the upper front surface of the electrically heated tank body 101. The material inlet valve pipe 104 is horizontally arranged on the lower side of the electrically heated tank body 101, and the material outlet valve pipe 105 is horizontally arranged on the upper side of the side of the electrically heated tank body 101 furthest from the material inlet valve pipe 104. Feeding... Pump 404 and material inlet valve 104 are connected and fixed by a flange structure, and material outlet valve 105 and material outlet valve 105 are connected and fixed by a flange structure. The heating method inside the electric heating tank 101 can ensure the uniformity of the internal temperature of the tank, avoiding the uneven heating problem that may be caused by traditional heating methods. At the same time, the setting of material inlet valve 104 and material outlet valve 105 makes the entry and exit of raw material molten material more convenient, and the flange structure connection method ensures the stability and sealing of the connection, effectively preventing the leakage of raw material molten material. like Figures 1 to 6As shown, the upper cover component 2 includes an upper cover body 201, a buffer plate 202, and an exhaust valve 203. The top surface of the upper cover body 201 is provided with the buffer plate 202, and the exhaust valve 203 is vertically installed through one end of the top of the buffer plate 202. The upper cover body 201 is connected and fixed to the top of the electric heating tank 101 by a flange structure, and the lower end of the exhaust valve 203 passes through the upper cover body 201 and communicates with the interior of the electric heating tank 101. The lower cover component 3 includes a lower cover body 301, a support frame 302, and a grounding seat 303. The support frame 302 is horizontally connected and installed at one end of the bottom edge of the lower cover body 301, and the grounding seat 303 is installed at the bottom of the end of the support frame 302 away from the lower cover body 301. The lower cover body 301 is connected and fixed to the bottom of the electric heating tank 101 by a flange structure, and the support frame 302 is centered on the lower cover body 301. The equipment is arranged in a ring array with four sets of grounding bases 303. The bottom of each base 303 has holes at the four opposite corners for bolt installation. The design of the upper cover component 2 and the lower cover component 3 not only enhances the overall sealing of the equipment but also effectively improves the safety of the equipment during operation. The exhaust valve 203 can promptly discharge the gas generated inside the equipment due to heating or reaction, avoiding equipment damage or safety accidents caused by excessive gas pressure. The support frame 302 and the grounding base 303 in the lower cover component 3 not only provide a stable support foundation for the equipment but also allow the equipment to be firmly fixed to the ground through the bolt installation holes on the grounding base 303. In addition, the ring array design of the support frame 302 further enhances the load-bearing capacity of the equipment, enabling it to adapt to more complex production environments.

[0020] In summary, as Figures 1 to 6 As shown, when using the equipment for precision filtration of BOPP raw material melt, first place the equipment in a stable and suitable working position, and use the bolt mounting hole structure on the grounding base 303 to firmly fix the equipment to the ground with bolts to ensure that the equipment will not be displaced or tilted due to vibration or external force during operation. Next, check whether the various components of the equipment are tightly connected, especially the filter core rod 401, connecting pipe 402 and diverter valve 403 in filter assembly 4, as well as the connection between feed pump 404 and material inlet valve pipe 104, and between discharge pump 405 and material outlet valve pipe 105. Ensure that all connections are made with quick couplings or flange structures and are secure, with no leakage. Then, inject an appropriate amount of heat transfer oil into the electric heating tank 101 through the heat transfer oil inlet 102, connect the external heat transfer oil circulation system, set the required heating temperature, turn on the electric heating system, so that the heat transfer oil circulates and heats in the tank, providing a stable temperature environment for the subsequent filtration process. After the internal temperature of the tank reaches the set value and stabilizes, the feed pump 404 is turned on to pump the BOPP raw material solution into the tank component 1 through the material inlet valve pipe 104. Under the action of the feed pump 404, the raw material solution flows into each filter rod 401 evenly and stably through the diversion control of the diversion valve 403. During the filtration process, the 20µm cylindrical flat mesh inside the filter core rod 401 is arranged at equal intervals, which can effectively intercept tiny impurities in the solution and ensure the purity of the output. At the same time, this design also increases the filtration area and improves the filtration efficiency. The filtered pure solution is then pumped by the discharge pump 405, and after passing through the diversion valve 403, it flows out from the material outlet valve pipe 105 and enters the next production process. During equipment operation, the exhaust valve 203 in the upper cover component 2 can promptly discharge the gas generated inside the tank due to heating or reaction, avoiding abnormal pressure caused by gas accumulation and ensuring the safe operation of the equipment. When it is necessary to replace or clean the filter rod 401, simply disconnect the quick connector to quickly remove the filter rod 401 from the filter assembly 4 for necessary cleaning or replacement operations. Unlike traditional filters, it does not require the removal of multiple screws, greatly saving time and labor costs. After the equipment is used up, first turn off the feed pump 404 and the discharge pump 405 to stop the inflow and outflow of raw material solution. Then turn off the electric heating system. After the internal temperature of the tank drops to a safe range, discharge the heat transfer oil through the heat transfer oil outlet 103. Finally, disconnect the power supply of the equipment to complete the shutdown operation.

[0021] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A device for precision filtering of BOPP raw material melt, comprising a tank component (1) and a filter assembly (4), characterized in that: The top of the tank component (1) is equipped with an upper cover component (2), and the bottom of the tank component (1) is equipped with a lower cover component (3). The filter assembly (4) is vertically mounted in the middle of the interior of the tank component (1). The filter assembly (4) includes a filter core rod (401), a connecting pipe (402), a diversion valve (403), a feed pump (404), and a discharge pump (405). The upper and lower ends of the filter core rod (401) are connected to the connecting pipe (402), and the end of the connecting pipe (402) away from the filter core rod (401) is connected to the diversion valve (403). The bottom of one group of diversion valves (403) at the upper end of the filter core rod (401) is connected to the feed pump (404), and the top of one group of diversion valves (403) at the lower end of the filter core rod (401) is connected to the discharge pump (405). The interior of the filter core rod (401) is equipped with 20um cylindrical flat mesh arranged at equal intervals.

2. The device for precision filtering of BOPP raw material melt according to claim 1, characterized in that, The tank component (1) includes an electric heating tank (101), a heat transfer oil inlet (102), a heat transfer oil outlet (103), a material inlet valve pipe (104), and a material outlet valve pipe (105). The heat transfer oil inlet (102) is horizontally arranged on the lower front surface of the electric heating tank (101), and the heat transfer oil outlet (103) is horizontally arranged on the upper front surface of the electric heating tank (101). The material inlet valve pipe (104) is horizontally arranged on the lower side of the electric heating tank (101), and the material outlet valve pipe (105) is horizontally arranged on the upper side of the side of the electric heating tank (101) away from the material inlet valve pipe (104).

3. The device for precision filtering of BOPP raw material melt according to claim 2, characterized in that, The feed pump (404) and the material inlet valve pipe (104) are connected and fixed by a flange structure, and the material outlet valve pipe (105) and the material outlet valve pipe (105) are connected and fixed by a flange structure.

4. The equipment for precision filtering of BOPP raw material melt according to claim 2, characterized in that, The upper cover component (2) includes an upper cover body (201), a buffer plate (202) and an exhaust valve (203). The top surface of the upper cover body (201) is provided with a buffer plate (202), and an exhaust valve (203) is vertically installed through one end of the top of the buffer plate (202).

5. The device for precision filtering of BOPP raw material melt according to claim 4, characterized in that, The top cover (201) is connected and fixed to the top of the electric heating tank (101) by a flange structure, and the lower end of the exhaust valve (203) passes through the top cover (201) and is connected to the interior of the electric heating tank (101).

6. The device for precision filtering of BOPP raw material melt according to claim 5, characterized in that, The lower cover component (3) includes a lower cover body (301), a support frame (302) and a grounding seat (303). The support frame (302) is horizontally connected to one end of the bottom edge of the lower cover body (301), and the grounding seat (303) is installed at the bottom of the end of the support frame (302) away from the lower cover body (301).

7. The device for precision filtering of BOPP raw material melt according to claim 6, characterized in that, The bottom of the lower cover (301) and the bottom of the electric heating tank (101) are connected and fixed by a flange structure. The support frame (302) is arranged in a ring array structure with the lower cover (301) as the center and has four sets. The bottom of the grounding seat (303) has holes for bolt installation at the four opposite corners.

8. The device for precision filtering of BOPP raw material melt according to claim 1, characterized in that, The filter core rod (401) and the connecting pipe (402) are arranged in a ring array structure with the diverter valve (403) as the center, and there are six sets of them. The filter core rod (401), the connecting pipe (402) and the diverter valve (403) are all connected by quick connectors.

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