A bottle flake melt filtration apparatus

Abstract

The utility model provides a kind of bottle piece melt filtering device, including screw extruder, backflush filter, melt pump, candle filter and impurity removal mechanism, the discharge port of screw extruder is connected by pipeline into impurity removal mechanism, impurity removal mechanism includes impurity removal pipe, high-frequency electromagnetic induction detector, control valve, three-way control valve and waste pipe;Under the action of screw extruder, bottle piece melt is input into impurity removal mechanism, control valve is opened, bottle piece melt enters into impurity removal pipe, metal detection is carried out to bottle piece melt in impurity removal pipe by high-frequency electromagnetic induction detector, if bottle piece melt contains metal impurity is detected, bottle piece melt containing metal impurity is discharged by waste pipe by three-way control valve, if bottle piece melt in impurity removal pipe has no metal impurity, material is transported into backflush filter by three-way control valve, then, after fine filtration by melt pump and candle filter in turn, dust or carbide impurity in material is filtered out.

Description

Technical Field

[0001] This utility model relates to the field of bottle flake melt filtration equipment, and in particular to a bottle flake melt filtration device. Background Technology

[0002] Bottle flake recycling typically involves steps such as washing, drying, and melt extrusion. The washing stage mainly removes surface stains and some impurities, but it may not be able to completely remove all impurities, such as metals, dust, and carbides. Metal impurities mixed in with the melt not only affect filtration equipment, but also lead to a decline in product performance. Utility Model Content

[0003] (a) Technical problems to be solved In order to solve the above-mentioned problems of the prior art, the present invention provides a bottle flake melt filtration device.

[0004] (II) Technical Solution To achieve the above objectives, the main technical solutions adopted by this utility model include: A bottle flake melt filtration device includes a screw extruder, a backwash filter, a melt pump, a candle filter, and a waste removal mechanism; The discharge port of the screw extruder is connected to the impurity removal mechanism via a pipeline; The waste removal mechanism includes a waste removal pipe, a high-frequency electromagnetic induction detector, a control valve, a three-way control valve, and a waste discharge pipe. The top end of the discharge pipe is connected to the pipeline at the discharge port of the screw extruder via the control valve, and the bottom end of the discharge pipe is equipped with the three-way control valve. The high-frequency electromagnetic induction detector is installed on the waste removal pipe; The waste discharge pipe is installed at one of the discharge ports of the three-way control valve, and the other discharge port of the three-way control valve is connected to the backwash filter through a pipeline; The discharge port of the backwash filter is connected to the candle filter; The candle filter is connected to the candle filter via a pipeline.

[0005] Preferably, it also includes a first Y-shaped tube and a second Y-shaped tube. The discharge port of the screw extruder is connected to the first Y-shaped tube through a pipeline. The impurity removal mechanism is provided in two sets. The other two ports of the first Y-shaped tube are respectively connected to the impurity removal mechanism. The two branch ports of the second Y-shaped tube are respectively connected to the discharge ports of the two sets of impurity removal mechanisms. The bottom discharge port of the second Y-shaped tube is connected to the backwash filter through a pipeline.

[0006] Preferably, the two sets of the debris removal mechanisms are used alternately.

[0007] Preferably, the screw extruder is a twin-screw extruder.

[0008] Preferably, the backwash filter has a screen size of 50-200 mesh.

[0009] Preferably, the waste discharge pipe is connected to the recycling bin.

[0010] (III) Beneficial Effects The beneficial effects of this utility model are as follows: Using the above technical solution, the cleaned bottle flakes are injected into a screw extruder. Under the action of the screw extruder, the bottle flake melt is fed into the impurity discharge mechanism. The control valve is opened, and the bottle flake melt enters the impurity discharge pipe. A high-frequency electromagnetic induction detector is used to detect metal in the bottle flake melt within the impurity discharge pipe. If metal impurities are detected in the bottle flake melt, the bottle flake melt containing metal impurities is discharged through the waste discharge pipe via a three-way control valve. If no metal impurities are found in the bottle flake melt entering the impurity discharge pipe, the material is transported to a backwash filter via a three-way control valve. After passing through a melt pump and a candle filter for fine filtration, dust or carbide impurities in the material are filtered out. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of a bottle flake melt filtration device; Figure 2 This is a schematic diagram of the structure of the second embodiment of the present utility model.

[0012] [Explanation of Labels in the Attached Image] 1. Screw extruder; 2. Waste removal mechanism; 21. Discharge pipe; 22. Control valve; 23. High-frequency electromagnetic induction detector; 24. Three-way control valve; 3. Backwash filter; 4. Melt pump; 5. Candle filter; 6. First Y-shaped tube; 7. Second Y-shaped tube. Detailed Implementation

[0013] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0014] Please refer to Figure 1 The first embodiment of this utility model: A bottle flake melt filtration device includes a screw extruder 1, a backwash filter 3, a melt pump 4, a candle filter 5, and a waste removal mechanism 2; The discharge port of the screw extruder 1 is connected to the impurity removal mechanism 2 via a pipeline; The waste removal mechanism 2 includes a waste removal pipe 21, a high-frequency electromagnetic induction detector 23, a control valve 22, a three-way control valve 24, and a waste discharge pipe; One end of the discharge pipe 21 is connected to the pipe at the discharge port of the screw extruder 1 via a control valve 22, and a three-way control valve 24 is installed at the bottom end of the discharge pipe 21. The high-frequency electromagnetic induction detector 23 is installed on the waste discharge pipe 21; One of the discharge ports of the three-way control valve 24 is equipped with a waste discharge pipe, and the other discharge port of the three-way control valve 24 is connected to the backwash filter 3 through a pipeline; The discharge port of the backwash filter 3 is connected to the candle filter 5; Candle filter 5 is connected to the candle filter 5 via a pipeline; In use, the cleaned bottle flakes are injected into the screw extruder 1. Under the action of the screw extruder 1, the bottle flake melt is fed into the impurity discharge mechanism 2. The control valve is opened, and the bottle flake melt enters the impurity discharge pipe 21. The bottle flake melt in the impurity discharge pipe 21 is detected for metal by the high-frequency electromagnetic induction detector 23. If metal impurities are detected in the bottle flake melt, the bottle flake melt containing metal impurities is discharged through the waste discharge pipe through the three-way control valve 24. If there are no metal impurities in the bottle flake melt entering the impurity discharge pipe 21, the material is transported to the backwash filter 3 through the three-way control valve 24. Then, after fine filtration by the melt pump 4 and the candle filter 5, the dust or carbide impurities in the material are filtered out.

[0015] refer to Figure 2 The second embodiment of this utility model: Based on the first embodiment described above, it also includes a first Y-shaped tube 6 and a second Y-shaped tube 7. The discharge port of the screw extruder 1 is connected to the first Y-shaped tube 6 through a pipeline. The impurity removal mechanism 2 is provided in two sets. The other two ports of the first Y-shaped tube 6 are respectively connected to the impurity removal mechanism 2. The two branch ports of the second Y-shaped tube 7 are respectively connected to the discharge ports of the two sets of impurity removal mechanisms 2. The bottom discharge port of the second Y-shaped tube 7 is connected to the backwash filter 3 through a pipeline. In use, under the action of the first Y-shaped tube 6, the material can enter the two sets of impurity removal mechanisms 2 respectively. The two sets of impurity removal mechanisms 2 alternately detect the material, thereby alternately conveying the impurity-free material to the backwash filter 3, which not only improves the impurity removal efficiency, but also improves the filtration efficiency.

[0016] In this embodiment, the screw extruder 1 is a twin-screw extruder 1.

[0017] In this embodiment, the backwash filter 3 has a screen size of 50-200 mesh.

[0018] In this embodiment, the waste discharge pipe is connected to the recycling bin.

[0019] The working principle of this utility model is as follows: The cleaned bottle flakes are injected into the screw extruder 1. Under the action of the screw extruder 1, the bottle flake melt is fed into the impurity discharge mechanism 2. The control valve is opened, and the bottle flake melt enters the impurity discharge pipe 21. The bottle flake melt in the impurity discharge pipe 21 is detected for metal by the high-frequency electromagnetic induction detector 23. If the bottle flake melt contains metal impurities, the bottle flake melt containing metal impurities is discharged through the waste discharge pipe through the three-way control valve 24. If the bottle flake melt entering the impurity discharge pipe 21 does not contain metal impurities, the material is transported to the backwash filter 3 through the three-way control valve 24. Then, it is finely filtered by the melt pump 4 and the candle filter 5 in sequence to filter out the dust or carbide impurities in the material.

[0020] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0021] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A bottle flake melt filtration device, characterized in that, This includes a screw extruder, backwash filter, melt pump, candle filter, and impurity removal mechanism; The discharge port of the screw extruder is connected to the impurity removal mechanism via a pipeline; The waste removal mechanism includes a waste removal pipe, a high-frequency electromagnetic induction detector, a control valve, a three-way control valve, and a waste discharge pipe. The top end of the discharge pipe is connected to the pipeline at the discharge port of the screw extruder via the control valve, and the bottom end of the discharge pipe is equipped with the three-way control valve. The high-frequency electromagnetic induction detector is installed on the waste removal pipe; The waste discharge pipe is installed at one of the discharge ports of the three-way control valve, and the other discharge port of the three-way control valve is connected to the backwash filter through a pipeline; The discharge port of the backwash filter is connected to the candle filter; The candle filter is connected to the candle filter via a pipeline.

2. The bottle flake melt filtration device according to claim 1, characterized in that, It also includes a first Y-shaped tube and a second Y-shaped tube. The discharge port of the screw extruder is connected to the first Y-shaped tube through a pipeline. The impurity removal mechanism is provided in two sets. The other two ports of the first Y-shaped tube are respectively connected to the impurity removal mechanism. The two branch ports of the second Y-shaped tube are respectively connected to the discharge ports of the two sets of impurity removal mechanisms. The bottom discharge port of the second Y-shaped tube is connected to the backwash filter through a pipeline.

3. The bottle flake melt filtration device according to claim 2, characterized in that, The two sets of debris removal mechanisms are used alternately.

4. The bottle flake melt filtration device according to claim 1, characterized in that, The screw extruder is a twin-screw extruder.

5. The bottle flake melt filtration device according to claim 1, characterized in that, The backwash filter has a screen size of 50-200 mesh.

6. The bottle flake melt filtration device according to claim 1, characterized in that, The waste discharge pipe is connected to the recycling bin.

Images