Movable PET (Polyethylene Terephthalate) residue filter
By designing a movable PET residue filter, the problems of short cleaning cycle, large amount, large odor and safety hazards during the impurity removal process in the prior art are solved, and efficient and safe filtration effect is achieved.
Patent Information
- Application Number
- CN202421600234.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-07-08
AI Technical Summary
During the reaction of PET and octanol to generate DOTP, some impurities did not participate in the reaction, resulting in the need to remove these impurities before the subsequent process. The existing filters have a short cleaning cycle, a large amount, a large odor and a safety hazard.
A movable PET residue filter is designed, including a tank body, filter plate, feed pipe, discharge pipe and pump pipe. The filter plate has filter holes distributed in annular shape to control the flow of liquid and waste residue through valves, and Set a guide rod and spring under the filter plate to ensure that the filter plate can be moved and cleaned effectively during the filtration process.
It realizes a filtration device that is easy to move, can effectively remove PET residues, simplify operations, reduce safety hazards, and is suitable for promotion and use.
Smart Images
Figure CN222517870U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a movable PET residue filter. Background Art
[0002] In the process of recycling PET and octanol to generate DOTP, some impurities do not participate in the reaction. In order to remove them before the subsequent process, a filter needs to be installed. This reaction is accompanied by a lot of impurities, about 0.1-0.3m³ per batch, with a particle size of about 5-12mm and a temperature of about 180°C. Due to the short cleaning cycle, large cleaning volume, strong odor during the cleaning process, it needs to be handled in a specific gas collection place, and the temperature is high. There are safety hazards in the cleaning. In order to solve the above problems, a movable residue filter is made. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a movable PET residue filter.
[0004] The utility model is realized by the following technical solutions:
[0005] A movable PET residue filter comprises a tank body, wherein the upper end of the tank body is sealed with an upper end cap, the lower end of the tank body is sealed with a lower end cap, a filter plate is arranged on the inner top of the tank body, filter holes are distributed in an annular manner on the plate surface of the filter plate, a feed pipe is arranged at the outer wall of the tank body below the filter plate, a first valve is installed at the feed pipe, a discharge pipe is arranged at the outer wall of the upper end cap above the filter plate, a second valve is installed at the discharge pipe, a drawing pipe is inserted downward from the top of the upper end cap, the lower end of the drawing pipe passes through the filter plate, and a third valve is installed at the upper end of the drawing pipe; a sewage cleaning port is arranged at the outer wall of the tank body, the height of the sewage cleaning port is lower than the feed pipe, and an end cover is detachably installed at the sewage cleaning port.
[0006] Preferably, a plurality of support rods are arranged in a rectangular shape at the bottom of the lower head, and plates are welded between the plurality of support rods.
[0007] Preferably, a pulley is provided at the bottom of the support rod.
[0008] Preferably, a socket for matching with a forklift is welded on the top of the plate.
[0009] Preferably, more than two guide rods are arranged in an inner ring shape of the upper head, the guide rods are vertically downward, the guide rods pass through the filter plate, and a lower limit cap is detachably installed at the lower end of the guide rods, a spring is sleeved on the guide rods, the spring acts between the filter plate and the upper head, a lower plate is assembled between the multiple guide rods, an upper limit cap is installed on the guide rods, the lower plate is clamped between the upper limit cap and the lower limit cap, a needle rod corresponding to the filter hole is arranged on the top of the lower plate, the filter plate moves downward under the action of the spring, and the needle rod at this time penetrates the filter hole upward, a through hole is arranged on the plate surface of the lower plate, and the aperture of the through hole is 10~100mm.
[0010] Preferably, the needle rod is a tapered rod, the diameter of the needle rod gradually increases downward, and the diameter of the large end of the needle rod is smaller than the aperture of the filter hole.
[0011] Preferably, the filter plate is limited by the upper limit cap when it moves downward, and a gap is formed between the needle rod and the filter hole at this time.
[0012] The beneficial effects of the utility model are:
[0013] The device can be displaced and can be easily moved to a gas collection site for treatment. The device can filter liquids and can conveniently treat the filtered waste residues. The operation is simple and convenient and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0015] Figure 1 It is a schematic diagram of the structure of the utility model;
[0016] Figure 2 This is the enlarged view of point A;
[0017] Figure 3 is a top view of the filter plate;
[0018] Figure 4 A top view of the lower plate. DETAILED DESCRIPTION
[0019] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.
[0020] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.
[0021] In the description of the present invention, it should be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "center", "end", "length", "outer end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0022] In addition, in the description of the present invention, “plurality” means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0023] In the present invention, unless otherwise clearly specified and limited, the terms "set", "socket", "connect", "penetrate", "plug in" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0024] like Figure 1 and Figure 2 A movable PET residue filter is shown, comprising a tank body 1, wherein the upper end of the tank body 1 is sealed with an upper head 2, and the lower end of the tank body 1 is sealed with a lower head 3. A filter plate 4 is arranged on the inner top of the tank body 1, and the thickness of the filter plate 4 is 8 mm. Filter holes 41 are distributed in an annular manner on the plate surface of the filter plate 4, and the aperture of the filter holes 41 is 8 mm. A feed pipe 5 is arranged on the outer wall of the tank body 1 below the filter plate 4, and a first valve 5 is installed on the feed pipe 5. 1, a discharge pipe 6 is arranged on the outer wall of the upper head 3 and located above the filter plate 4, a second valve 61 is installed on the discharge pipe 6, a drawing pipe 7 is inserted downward from the top of the upper head 3, the lower end of the drawing pipe 7 passes through the filter plate 4, and a third valve 71 is installed on the upper end of the drawing pipe 7; a sewage cleaning port (not shown) is arranged on the outer wall of the tank body 1, the height of the sewage cleaning port is lower than the feed pipe 5, and an end cover 8 is detachably installed at the sewage cleaning port.
[0025] The liquid is pumped into the tank body 1 through the feed pipe 5 by the esterification reaction discharge pump. The clean liquid passes through the filter holes 41 on the surface of the filter plate 4 and flows upward, and then flows out to the next tool through the discharge pipe 6, while the waste residue is intercepted by the filter plate 4 and is regularly cleaned by opening the cleaning port.
[0026] See also Figure 1 As shown, a plurality of support rods 31 are arranged in a rectangular shape at the bottom of the lower head 3 , and plates 32 are welded between the plurality of support rods 31 .
[0027] The support rods 31 are used to be suspended in the air, and the plate 32 connects the support rods 31, so that the support of the support rods 31 is more stable.
[0028] See also Figure 1 As shown, a pulley 33 is provided at the bottom of the support rod 31 .
[0029] The arrangement of the pulley 33 enables the tank body 1 to move on the ground.
[0030] See also Figure 1 As shown, a socket 34 for matching with a forklift is welded on the top of the plate 32 .
[0031] The socket 34 is convenient for forking with a forklift, and the tank body 1 is more stable after being lifted, thereby preventing the tank body 1 from falling over.
[0032] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, two guide rods 21 are arranged in an annular manner inside the upper head 2, the guide rods 21 are vertically downward, the guide rods 21 pass through the filter plate 4, a lower limit cap 22 is detachably installed at the lower end of the guide rods 21, a spring 23 is sleeved on the guide rods 21, the spring 23 acts between the filter plate 4 and the upper head 2, a lower plate 24 is installed between the plurality of guide rods 21, an upper limit cap 25 is installed on the guide rods 21, and the lower plate Part 24 is clamped between the upper limit cap 25 and the lower limit cap 22, and a needle rod 26 corresponding to the filter hole 41 is arranged on the top of the lower plate part 24. The filter plate 4 moves downward under the action of the spring 23. At this time, the needle rod 26 penetrates the filter hole 41 upward, and a through hole 27 is arranged on the plate surface of the lower plate part 24. The aperture of the through hole 27 is 10mm, 20mmm, 30mm and other specifications; the extraction tube 7 passes downward through the filter plate 4 and the lower plate part 24.
[0033] In the above technical scheme, the liquid passes through the through hole 27 upward, and then passes through the filter hole 41 to be discharged, and the waste residue is intercepted under the filter plate 4. As the amount of waste residue blocking the filter hole 41 increases, the amount of filter hole 41 passing through decreases. At this time, the filter plate 4 is pushed upward, and the needle rod 26 gradually separates from the filter hole 41. The passable area of the filter hole 41 increases until the filter hole 41 is blocked again. At this time, the filter plate 4 continues to move upward. When it is found that the discharge volume at the discharge pipe 6 is insufficient, the feed at the feed pipe 5 is closed, and the extraction pipe 7 is extracted through an external extraction device. At this time, the liquid level under the filter plate 4 is reduced, and the filter plate 4 falls back again. After falling back, the needle rod 26 dredges the filter hole 41. After the extraction is completed, the end cover 8 is opened for cleaning.
[0034] See also Figure 2 As shown, the needle rod 26 is a tapered rod, the diameter of the needle rod 26 gradually increases downward, and the diameter of the large end of the needle rod 26 is smaller than the aperture of the filter hole 41.
[0035] This technical solution can prevent the needle rod 26 from completely blocking the filter hole 41 after the filter plate 4 moves downward.
[0036] See also Figure 2 As shown, the filter plate 4 moves downward and is limited by the upper limit cap 25 , and a gap is formed between the needle rod 26 and the filter hole 41 .
[0037] In this technical solution, the upper limit cap 25 is used to limit the position of the filter hole 41 so that there is space for liquid to flow through.
[0038] Therefore, in the initial stage of the operation of the equipment, the needle rod 26 also plays a technical effect of reducing the cross-sectional area of the filter hole 41 and increasing the filtering accuracy.
[0039] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.
Claims
1. A removable PET residue filter, characterized in that: The filter bag of claim 1, wherein the filter bag has a plurality of sealing members, each of which is provided with a plurality of sealing members, and the plurality of sealing members are provided with a plurality of sealing members.
2. The removable PET residue filter according to claim 1, characterized in that: A socket for matching a forklift is welded on the top of the plate.
3. The removable PET residue filter according to claim 1, characterized in that: More than two guide rods are arranged in an inner ring of the upper head, the guide rods are vertically downward, the guide rods pass through the filter plate, and a lower limit cap is detachably installed at the lower end of the guide rods, a spring is sleeved on the guide rods, the spring acts between the filter plate and the upper head, a lower plate is assembled between the multiple guide rods, an upper limit cap is installed on the guide rods, the lower plate is clamped between the upper limit cap and the lower limit cap, a needle rod corresponding to the filter hole is arranged on the top of the lower plate, the filter plate moves downward under the action of the spring, and the needle rod at this time penetrates the filter hole upward, and a through hole is arranged on the plate surface of the lower plate, and the aperture of the through hole is 10~100mm.
4. The removable PET residue filter according to claim 3, characterized in that: The needle rod is a tapered rod, the diameter of the needle rod gradually increases downward, and the diameter of the large end of the needle rod is smaller than the aperture of the filter hole.
5. The removable PET residue filter according to claim 4, characterized in that: The filter plate moves downward and is limited by the upper limit cap, and a gap is formed between the needle rod and the filter hole.