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Double-runner filtering die head and screen structure suitable for reclaimed material production

A technology of recycled materials and dual flow channels, applied in the direction of climate change adaptation, etc., can solve problems such as extrusion into micropores and blockage, and achieve the effects of stable extrusion, convenient screen change, and controllable flow direction.

Pending Publication Date: 2022-07-08
贺瑞峰 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the scraper is scraping off impurities, the shear force generated by the rotation will easily squeeze the impurities attached to the surface of the microporous filter plate into the micropores, causing blockage, and the machine can only be disassembled for cleaning.

Method used

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  • Double-runner filtering die head and screen structure suitable for reclaimed material production
  • Double-runner filtering die head and screen structure suitable for reclaimed material production
  • Double-runner filtering die head and screen structure suitable for reclaimed material production

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] like figure 1 As shown, a dual-flow filter die and screen structure suitable for the production of recycled materials includes a casing 1, which is characterized in that the feeding end of the casing 1 is connected to the extruder, and the casing 1 is processed with A single-pass flow channel 2 that can split fluids in two ways; a filter assembly 3 is installed on the single-pass flow channel 2, and the end of the single-pass flow channel 2 merges into the extrusion die 4; when the machine is not shut down, the extrusion die 4 and the screen 5 of the filter assembly 3 can be replaced by the screen changing mechanism 6. The use process: after the molten fluid enters the application, it flows through a single channel Under the action of the second fine filtration, the impurity removal effect is improved, and the quality of the extruded drip irrigation belt is ensured. At the same time, the step-by-step filtration can reduce the frequency of screen changing; by setting the...

Embodiment 2

[0067] like Figure 18-19 As shown, the difference from the first embodiment is that, considering the flow direction control of the above-mentioned split flow channel 8, the cross-sectional shape of the split flow channel 8 is a rounded rectangle; the two center positions of the split flow channel 8 are connected by sealed bearings. There is a rotating shaft 40; the side wall of the rotating shaft 40 is welded with mutually meshing propeller blades 41, and the propeller blades 41 are transitionally matched with the inner wall of the shunt flow channel 8; the two ends of the rotating shaft 40 are connected by keys. 1 is provided with a groove 43 for installing the drive gear 42, which drives the drive gear 42 in one of the shunt channels 8, drives the propeller blades 41 on the rotating shaft 40 to transport fluid in one direction, and the other shunt channel 8 is closed, realizing The flow direction of the shunt flow channel 8 is controlled, and this control method can push th...

Embodiment 3

[0069] like Figure 20 As shown, the difference from the first embodiment is that, considering that the above-mentioned fluid is easy to flow back into the filter channel 9 after entering the extrusion die 4, in order to avoid the above phenomenon, the left or right side of the filter channel 9 The round pipe section 16 is fixed with a non-return plate 44. The non-return plate 44 can be arranged on one side alone or on both sides at the same time, and the non-return plate 44 completely closes the filter channel 9. The center of the non-return plate 44 is machined with a The fluid hole 45, the shape of the fluid hole 45 is square, and the diameter of the fluid hole 45 is larger than the diameter of the positioning rod 22 to ensure the passage of fluid; 46 is located on the right side of the non-return plate 44; a tension spring 47 is installed on the left side wall of the positioning rod 22, one end of the tension spring 47 is fixed with the blocking plate 46, and the other end...

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Abstract

The invention relates to the field of drip irrigation tape production, and discloses a double-flow-channel filtering die head and screen structure suitable for reclaimed material production, the double-flow-channel filtering die head and screen structure comprises a machine shell, the feeding end of the machine shell is connected with an extruder, and a single-pass flow channel capable of dividing fluid in two paths is arranged in the machine shell; the filter assemblies are arranged on the single-pass runners respectively, and the tail ends of the single-pass runners are converged into the extrusion die head; when the machine is not stopped, the extrusion die head and the screen of the filtering assembly can be replaced through the screen replacing mechanism; the device is reasonable in design, convenient to disassemble and assemble, controllable in flow direction, stable in filtration, stable in extrusion, convenient and fast in screen replacement, safe, reliable, energy-saving, consumption-reducing, quality-improving and efficiency-improving; the production cost is reduced, and the impurity removal effect is improved; on the premise of backflow prevention and self-adaptive pressure adjustment, the process of non-stop net replacement and the process of continuous output of the drip irrigation tape are guaranteed.

Description

technical field [0001] The invention relates to the field of drip irrigation belt production, in particular to a dual-flow filter die head and a screen structure suitable for the production of recycled materials. Background technique [0002] At present, my country is vigorously promoting and using drip irrigation technology and scientific planting in the agricultural field. The internal patch drip irrigation belt has the best application performance in the field of drip irrigation. In the process of using recycled material to produce the drip irrigation belt, the material forms a molten state in the extruder, and before being extruded from the filter die, it melts in the extruder The cavity needs to pass through the microporous filter screen, because the material is processed from recycled plastic, so the material may contain impurities. When the material passes through the microporous filter screen, the impurities will be blocked by the microporous filter screen and remain...

Claims

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Application Information

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IPC IPC(8): B29C48/255B29C48/32B29C48/691B29C48/10
CPCB29C48/2556B29C48/32B29C48/6912B29C48/10Y02A40/22
Inventor 贺瑞峰高宏荣
Owner 贺瑞峰
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