A safe filtering device for preparing hydroxypropyl acrylate

Abstract

The utility model discloses a safety type filtering equipment for preparing hydroxypropyl acrylate relates to hydroxypropyl acrylate preparation technical field. The safety type filtering equipment for preparing hydroxypropyl acrylate, including filter box, the filter box is hinged with sealed open -and -shut door, the upper end fixedly connected with the feed pipe of filter box, the lower end fixedly connected with the discharge pipe of filter box, the inside fixedly connected with two slide rails of filter box, the slide rail is slidably connected with filter screen support frame, and the filter screen support frame is back -shaped and is fixedly connected with composite filter screen in its inside, is provided with fixed establishment on the slide rail. The safety type filtering equipment for preparing hydroxypropyl acrylate only needs to make strong electromagnet lose magnetic attraction by power off, weak magnet can attract fixed rod from the inside of fixed hole at this moment, and then makes filter screen support frame can be easily drawn out from the inside of filter box, so it is convenient to replace composite filter screen, and then makes the installation and replacement of filter screen more convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of hydroxypropyl acrylate preparation technology, and in particular to a safe filtration device for the preparation of hydroxypropyl acrylate. Background Technology

[0002] In the preparation of hydroxypropyl acrylate, the filtration of raw materials is one of the key steps to ensure product quality. As the core device for this step, the performance of the filtration equipment directly affects the filtration efficiency, product purity, and the safety of the production process.

[0003] Currently, traditional filtration equipment for the preparation of hydroxypropyl acrylate has many problems during use. Regarding filter installation and replacement, traditional equipment often uses cumbersome methods for fixing the filters, primarily employing mechanical fastening methods such as bolts. When cleaning or replacing the filters, a significant amount of time and manpower is required to disassemble the bolts, which not only affects production efficiency but also risks damaging other components of the equipment due to frequent disassembly. Meanwhile, the sealing performance of traditional filtration equipment is difficult to guarantee effectively. Due to the unreasonable design of the sealing structure, hydroxypropyl acrylate can easily leak from the gaps in the equipment during the filtration process. This not only wastes raw materials and increases production costs, but more importantly, hydroxypropyl acrylate has certain irritant and toxic properties. Leakage can threaten the health of operators and may also pollute the surrounding environment. In addition, the support structure of the filter screen in traditional filtration equipment is not stable enough. Under the impact of raw materials, the filter screen is prone to shaking or even displacement, which affects the filtration effect and results in the filtered material still containing a lot of impurities, which cannot meet the requirements of subsequent production. Therefore, developing a filtration device for the preparation of hydroxypropyl acrylate with convenient and quick filter installation and replacement, good sealing performance, and stable filter support has become an urgent problem to be solved in this field. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a safe filtration device for the preparation of hydroxypropyl acrylate, which can solve the above-mentioned problem.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a safe filtration device for the preparation of hydroxypropyl acrylate, comprising a filter box, a sealed opening and closing door hinged on the filter box, a feed pipe fixedly connected to the upper end of the filter box, and a discharge pipe fixedly connected to the lower end of the filter box. The filter box has two slide rails fixedly connected inside, and a filter screen support frame is slidably connected on the slide rails. The filter screen support frame is U-shaped and has a composite filter screen fixedly connected inside. A fixing mechanism is arranged on the sliding rail.

[0006] Preferably, the fixing mechanism comprises fixing holes formed on the sliding rail, and a strong electromagnet is fixedly connected inside each fixing hole; The fixing holes are respectively arranged on the upper and lower sides of the sliding rail and have the same internal structure; Both sides of the filter screen support frame are provided with sliding grooves adapted to the sliding rail, the upper and lower inner walls of the sliding grooves are both provided with mounting holes, a weak magnet is fixedly connected inside each mounting hole, and a fixing rod is slidably connected inside each mounting hole.

[0007] Preferably, the fixing rod can only slide inside the mounting hole and cannot be separated therefrom, and the material of the fixing rod is a material that can be attracted by a magnet.

[0008] Preferably, a threaded rod is rotatably connected to the sealed opening and closing door, and the filter box is provided with a threaded hole adapted to the threaded rod.

[0009] Preferably, the upper and lower sides of the sealed opening and closing door are both fixedly connected with a sealing strip in a shape of a loop, and the upper and lower sides of the sealed opening and closing door are both provided with sealing grooves.

[0010] Preferably, an air bag is installed at the position of the filter box where the sealed opening and closing door is arranged, and the air bag is communicated with an external air supply device.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: (1) For this safety-type filtering apparatus for preparing hydroxypropyl acrylate, when the composite filter screen needs to be installed, the sealed opening and closing door is opened, the sliding groove on the filter screen support frame is aligned with the sliding rail, and the filter screen support frame is pushed into the interior of the filter box. At this time, the strong electromagnet is energized, so that the strong electromagnet generates a large magnetic force to attract the fixing rod into the fixing hole, thereby completing the fixation and installation of the filter screen support frame. When it needs to be disassembled and replaced, it is only necessary to de-energize the strong electromagnet to make it lose magnetic attraction, and at this time, the weak magnet can suck the fixing rod out of the fixing hole, so that the filter screen support frame can be easily pulled out from the interior of the filter box, which facilitates the replacement of the composite filter screen, and further makes the installation and replacement of the filter screen more convenient and fast.

[0012] (2) For this safety-type filtering apparatus for preparing hydroxypropyl acrylate, when the sealed opening and closing door is closed, the sealing strip completely seals the gap between the sealed opening and closing door and the filter box, and at the same time, the air bag is inflated and then clamped into the interior of the sealing groove, thereby completing secondary sealing, further ensuring the overall sealing effect of the filter box, avoiding the generation of gaps, and thus preventing the leakage of hydroxypropyl acrylate. Brief Description of the Drawings

[0013] The present utility model will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of a safety filtration device for the preparation of hydroxypropyl acrylate according to this utility model; Figure 2 This is a schematic diagram of a safety filtration device for the preparation of hydroxypropyl acrylate according to this utility model; Figure 3 This is a schematic diagram of the sealing and opening door of this utility model; Figure 4 This is a schematic diagram of the filter support frame of this utility model; Figure 5 This utility model Figure 4 Enlarged diagram of point A in the middle.

[0014] Reference numerals in the attached diagram: 1. Filter box; 2. Feed pipe; 3. Discharge pipe; 4. Sealing opening and closing door; 5. Threaded rod; 6. Slide rail; 7. Filter screen support frame; 8. Airbag; 9. Sealing strip; 10. Sealing groove; 11. Composite filter screen; 12. Slide groove; 13. Mounting hole; 14. Weak magnet; 15. Fixing rod; 16. Powerful electromagnet; 17. Fixing hole. Detailed Implementation

[0015] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0016] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0018] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0019] Please see Figure 1-5This utility model provides a technical solution: a safe filtration device for the preparation of hydroxypropyl acrylate, including a filter box 1, a sealed opening and closing door 4 hinged on the filter box 1, a feed pipe 2 fixedly connected to the upper end of the filter box 1, and a discharge pipe 3 fixedly connected to the lower end of the filter box 1. The filter box 1 has two slide rails 6 fixedly connected inside. A filter support frame 7 is slidably connected on the slide rails 6. The filter support frame 7 is U-shaped and has a composite filter 11 fixedly connected inside. A fixing mechanism is provided on slide rail 6; When it is necessary to prepare hydroxypropyl acrylate, the raw material can be injected into the filter box 1 through the feed pipe 2. At this time, under the action of gravity, the raw material comes into contact with the composite filter screen 11, so the composite filter screen 11 filters it, and the filtered material is discharged through the discharge pipe 3. Furthermore, the fixing mechanism includes a fixing hole 17 opened on the slide rail 6, and a powerful electromagnet 16 is fixedly connected inside the fixing hole 17. The fixing holes 17 are respectively set on the upper and lower sides of the slide rail 6 and have the same internal structure; Both sides of the filter support frame 7 are provided with slide grooves 12 that are compatible with the slide rail 6. The upper and lower inner walls of the slide grooves 12 are provided with mounting holes 13. A weak magnet 14 is fixedly connected inside the mounting holes 13, and a fixing rod 15 is slidably connected inside the mounting holes 13. Among them, the fixing rod 15 can only slide inside the mounting hole 13 and cannot be disengaged from it. At the same time, the fixing rod 15 is made of a material that can be attracted by a magnet. When the composite filter 11 needs to be installed, open the sealing door 4, align the slide groove 12 on the filter support frame 7 with the slide rail 6, and push the filter support frame 7 into the filter box 1. At this time, the powerful electromagnet 16 is energized, so the powerful electromagnet 16 generates a large magnetic force, causing the fixing rod 15 to be attracted into the fixing hole 17. Thus, the fixing and installation of the filter support frame 7 is completed. When it needs to be removed and replaced, simply de-energize the powerful electromagnet 16 to make it lose its magnetic attraction. At this time, the weak magnet 14 can pull the fixing rod 15 out of the fixing hole 17, so that the filter support frame 7 can be easily pulled out from the filter box 1. Therefore, it is convenient to replace the composite filter 11, making the installation and replacement of the filter more convenient and quick. Furthermore, a threaded rod 5 is rotatably connected to the sealing opening and closing door 4, and a threaded hole adapted to the threaded rod 5 is provided on the filter box 1. By using the threaded rod 5, when the sealing door 4 is closed, the threaded rod 5 can be connected to the threaded hole to fix the sealing door 4, thereby preventing it from opening and closing arbitrarily with the filter box 1, thus ensuring the sealing performance of the filter box 1. The upper and lower sides of the sealing opening / closing door 4 are both fixedly connected with a sealing strip 9 shaped like a hollow square, and the upper and lower sides of the sealing opening / closing door 4 are both provided with sealing grooves 10; An air bag 8 is mounted on the position of the filter box 1 where the sealing opening / closing door 4 is arranged, and the air bag 8 is in communication with an external air supply device; When the sealing opening / closing door 4 is closed, the sealing strip 9 completely seals the gap between the sealing opening / closing door 4 and the filter box 1, and at the same time, the air bag 8 is inflated and clamped into the sealing groove 10, thus completing secondary sealing, further ensuring the overall sealing effect of the filter box 1 and avoiding the formation of gaps, so as to prevent leakage of hydroxypropyl acrylate.

[0020] Working principle: When the composite filter screen 11 needs to be installed, the sealing opening / closing door 4 is opened, the sliding groove 12 on the filter screen support frame 7 is aligned with the sliding rail 6, and the filter screen support frame 7 is pushed into the interior of the filter box 1. At this time, the strong electromagnet 16 is energized, so the strong electromagnet 16 generates a large magnetic force to attract the fixing rod 15 into the interior of the fixing hole 17, thus completing the fixing and installation of the filter screen support frame 7. When it needs to be disassembled and replaced, it is only necessary to de-energize the strong electromagnet 16 to make it lose magnetic attraction. At this time, the weak magnet 14 can suck the fixing rod 15 out of the interior of the fixing hole 17, so that the filter screen support frame 7 can be easily pulled out from the interior of the filter box 1, which facilitates the replacement of the composite filter screen 11, and further makes the installation and replacement of the filter screen more convenient and fast.

[0021] Structural description: Filter box 1: As the main frame of the entire filtering equipment, it is the installation base for all components, provides a closed space for filtering raw materials, and ensures that the filtering process can be carried out in a relatively stable environment.

[0022] Feed pipe 2: fixedly connected to the upper end of the filter box 1, which functions to inject raw materials required for the preparation of hydroxypropyl acrylate into the interior of the filter box 1, and serves as a passage for raw materials to enter the filtering system. Discharge pipe 3: fixedly connected to the lower end of the filter box 1, for discharging the material filtered by the composite filter screen 11 out of the filter box 1, so as to carry out subsequent production processes. Sealing opening / closing door 4: hinged on the filter box 1, and can be opened and closed. When opened, it facilitates the installation, replacement and maintenance of the internal components of the filter box 1, such as the composite filter screen 11 and the like; when closed, it forms a closed space with the filter box 1 to ensure the sealing performance of the filter box 1. Threaded rod 5: rotatably connected to the sealing opening / closing door 4, and the filter box 1 is provided with a threaded hole adapted thereto. When the sealing opening / closing door 4 is closed, the sealing opening / closing door 4 can be fixed through the threaded connection between the threaded rod 5 and the threaded hole, avoiding the phenomenon of random opening and closing between the sealing opening / closing door 4 and the filter box 1, and ensuring the sealing performance of the filter box 1. Slide rail 6: Fixedly connected inside the filter box 1, providing a sliding track for the filter support frame 7, so that the filter support frame 7 can be smoothly pushed into or pulled out of the filter box 1 along the slide rail 6, which facilitates the installation and replacement of the composite filter 11. Filter support frame 7: It is slidably connected to the slide rail 6 and is in the shape of a U-shape. Its main function is to support and fix the composite filter 11, so as to ensure that the composite filter 11 can stably perform its filtering function during the filtering process.

[0023] Airbag 8: Installed in the filter box 1 at the location where the sealing door 4 is located, and connected to the external air supply equipment. When the sealing door 4 is closed, the airbag 8 inflates and gets stuck inside the sealing groove 10, achieving a secondary seal for the filter box 1, further ensuring the overall sealing effect of the filter box 1, and preventing gaps from causing hydroxypropyl acrylate leakage. Sealing strip 9: Fixedly connected to the upper and lower sides of the sealing door 4, in a U-shape. When the sealing door 4 is closed, the sealing strip 9 can completely seal the gap between the sealing door 4 and the filter box 1, enhancing the sealing performance of the filter box 1. Sealing groove 10: It is opened on the upper and lower sides of the sealing opening and closing door 4 to accommodate the inflated airbag 8, so that the airbag 8 can be tightly inserted into it, and achieve secondary sealing with the airbag 8 to improve the sealing effect.

[0024] Composite filter 11: Fixedly connected inside the filter support frame 7, it is the core component of the filtration process. When the raw material comes into contact with the composite filter 11 under the action of gravity, the composite filter 11 can filter the raw material, remove impurities, and ensure that the material discharged from the discharge pipe 3 meets the production requirements. Slide groove 12: It is formed on both sides of the filter support frame 7 and is compatible with the slide rail 6. The slide groove 12 cooperates with the slide rail 6 to allow the filter support frame 7 to slide stably along the slide rail 6, which facilitates installation and disassembly.

[0025] Mounting holes 13 are formed on the upper and lower inner walls of the slide groove 12, used to mount the weak magnet 14 and accommodate the fixing rod 15, providing installation space for the fixing mechanism. Weak magnet 14: Fixedly connected inside the mounting hole 13. When the strong electromagnet 16 is de-energized and loses its magnetic attraction, the weak magnet 14 can pull the fixing rod 15 out from the inside of the fixing hole 17, so that the filter support frame 7 can be easily pulled out from the inside of the filter box 1, making it convenient to replace the composite filter 11. Fixing rod 15: Slidably connected inside mounting hole 13, made of a material that can be attracted by a magnet. When the powerful electromagnet 16 is energized, the fixing rod 15 is attracted into the fixing hole 17, thus fixing the filter support frame 7; when the powerful electromagnet 16 is de-energized, it is pulled out of the fixing hole 17 under the action of the weak magnet 14, releasing the fixation of the filter support frame 7. Powerful electromagnet 16: It is fixedly connected inside the fixing hole 17. When energized, it generates a large magnetic force, which can attract the fixing rod 15 into the fixing hole 17, thereby completing the fixing and installation of the filter support frame 7. Fixing holes 17: These are formed on the slide rail 6 and are located on the upper and lower sides of the slide rail 6 respectively. They have the same internal structure and are used to accommodate the powerful electromagnet 16 and the attracted fixing rod 15. They are an important part of the fixing mechanism and are used to fix the filter support frame 7 by cooperating with the fixing rod 15.

[0026] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A safe filtration device for the preparation of hydroxypropyl acrylate, comprising a filter box (1), characterized in that: The filter box (1) is hinged with a sealed opening and closing door (4), the upper end of the filter box (1) is fixedly connected with a feed pipe (2), and the lower end of the filter box (1) is fixedly connected with a discharge pipe (3). The filter box (1) has two slide rails (6) fixedly connected inside. A filter support frame (7) is slidably connected on the slide rails (6). The filter support frame (7) is U-shaped and has a composite filter (11) fixedly connected inside. A fixing mechanism is provided on the slide rail (6).

2. The safety filtration device for the preparation of hydroxypropyl acrylate according to claim 1, characterized in that: The fixing mechanism includes a fixing hole (17) opened on the slide rail (6), and a powerful electromagnet (16) is fixedly connected inside the fixing hole (17). The fixing holes (17) are respectively set on the upper and lower sides of the slide rail (6) and have the same internal structure; Both sides of the filter support frame (7) are provided with slide grooves (12) that are compatible with the slide rail (6). The upper and lower inner walls of the slide groove (12) are provided with mounting holes (13). A weak magnet (14) is fixedly connected inside the mounting hole (13). A fixing rod (15) is slidably connected inside the mounting hole (13).

3. The safe filtration device for preparing hydroxypropyl acrylate according to claim 2, characterized in that: The fixing rod (15) can only slide inside the mounting hole (13) and cannot be disengaged from it. At the same time, the fixing rod (15) is made of a material that can be attracted by a magnet.

4. The safety filtration device for the preparation of hydroxypropyl acrylate according to claim 3, characterized in that: The sealed opening and closing door (4) is rotatably connected to a threaded rod (5), and the filter box (1) is provided with a threaded hole that matches the threaded rod (5).

5. A safe filtration device for the preparation of hydroxypropyl acrylate according to claim 4, characterized in that: The sealing door (4) is fixedly connected to the upper and lower sides with sealing strips (9) in the shape of a U-shape, and sealing grooves (10) are provided on the upper and lower sides of the sealing door (4).

6. A safe filtration device for the preparation of hydroxypropyl acrylate according to claim 5, characterized in that: The filter box (1) is equipped with an airbag (8) at the position of the sealed opening and closing door (4), and the airbag (8) is connected to the external air supply equipment.

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