Flocking (sliver) inhibiting conveying pipe

Abstract

The invention relates to resin granule conveying equipment, in particular to a fluff (strip) inhibiting conveying pipe used in a pneumatic conveying pipeline for polyester (or nylon) raw material granules and similar granules. The batting (strip) inhibiting conveying pipe is a specially-made pipeline which is provided with one or more sections of certain lengths and used for inhibiting generation of wool strips in a resin particle conveying pipeline system, and is structurally characterized in that a layer of sleeve made of a stainless steel pore plate or a screen is embedded in a stainless steel conveying pipe, so that resin particles are conveyed in the whole pipeline, and the batting (strip) inhibiting conveying pipe is formed. And the generation condition of batting is eliminated, so that the generation of batting and dust is inhibited. Especially, long-distance conveying is more obvious, and dust and batting generated by a conventional conveying pipeline are 5-7 times that generated by a batting (batting) restraining conveying pipe.

Description

Technical Field

[0001] The invention relates to resin pellet conveying equipment, in particular to polyester (or nylon) pellets and similar pellet conveying devices. Background Art

[0002] Take the polyester (or nylon) biaxially oriented film production line as an example. Due to the production process, the raw material slice particles need to be transported, metered and crystallized and dried multiple times. Considering energy saving, Roots blower dilute phase pneumatic conveying is adopted, and stainless steel pipes with smooth inner walls are used in the conveying pipeline. However, after tests and a large number of on-site conveying operations, it was found that the smooth inner wall of the conveying pipeline is the main cause of the formation of fluff. When the slice particles with fluff are directly fed into the extruder after crystallization and drying, the melt quality will be reduced, and the film surface will be flawed or damaged when the film is drawn, which will affect the quality of the final product. Especially for the production of optical films, the adverse effects of fluff are more obvious. Summary of the invention

[0003] The purpose of the present invention is to solve the problem of suppressing the generation of lint during the transportation of resin particles. Especially in long-distance transportation, the dust and lint generated by conventional transportation pipelines are 5-7 times that of lint-suppressing transportation pipelines.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] The lint (strip) suppression conveying pipe is a special pipe with a certain length of one or more sections configured in the resin particle conveying pipeline system to suppress the generation of lint. Its structure is a sleeve made of a stainless steel perforated plate or a screen embedded in a stainless steel conveying pipe, so that the conditions for the generation of lint are eliminated during the entire pipeline transportation process of the particles, thereby suppressing the generation of lint and dust.

[0006] The lint (strip) suppression conveying pipe is composed of two parts, one part is a stainless steel conveying pipe, and the other part is a perforated plate or a screen sleeve embedded in the conveying pipe.

[0007] The fluff (strips) are suppressed by embedding a layer of perforated plate or screen sleeve inside the conveying pipe, and the hole diameter is determined according to the conveying output and pressure requirements.

[0008] The beneficial effect of the present invention is that the purpose of suppressing and reducing the generation of lint and dust during the transportation of resin particles is achieved, the difficulty of subsequent dust removal of the resin particles is reduced, and the quality of the final product is greatly improved.

[0009] The lint (strip) suppression conveying pipe provided by the present invention comprises a stainless steel conveying pipeline, a perforated plate or a screen sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0011] Figure 1 It is a schematic diagram of the structure of the lint (strip) suppression conveying pipe of the present invention;

[0012] Figure 2 This is a numerical comparison table of the lint (strips) of the present invention for inhibiting the generation of lint and dust in the delivery pipe and the conventional delivery pipe;

[0013] In the figure, 1. stainless steel pipe; 2. perforated plate or screen sleeve. DETAILED DESCRIPTION

[0014] Figure 1 The schematic diagram of the structure of the lint (strip) suppression conveying pipe of the present invention is shown in FIG. A layer of orifice plate or screen sleeve 2 is embedded and installed in a stainless steel pipe 1. The holes required by the orifice plate or screen sleeve 2 can be round holes, elliptical holes, mat-shaped holes, or other forms of woven or sintered meshes. The diameter of the holes ranges from 0.1 to 12 mm. The hole diameter of the orifice plate or screen sleeve 2 is selected according to the requirements of the conveying output and pressure. When the resin particles pass through the conveying pipe, the conditions for the formation of lint (strip) are eliminated, and the formation of lint is prevented. Figure 2 This is a statistical comparison chart of dust and lint data generated by the lint (strip) suppression conveying pipe and the conventional conveying pipe in the conveying test.

[0015] The outer dimensions and shape of the wool (strip) suppression conveying tube of the present invention can be determined according to actual needs. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lint suppression conveying pipe, the device comprising a stainless steel pipe, a perforated plate or a screen sleeve, characterized in that One or more sections of lint suppression conveying pipes with a certain length are arranged in the whole pipeline system.

2. The lint suppression conveying tube according to claim 1, characterized in that A layer of stainless steel perforated plate or screen sleeve is embedded in the conveying pipe to suppress the lint (strips). The holes of the perforated plate or screen can be round, elliptical, mat-shaped, other types of woven mesh or sintered mesh. The hole diameter varies according to the output and pressure requirements of the conveying. The diameter range of the hole of the perforated plate or screen is 0.1-12 mm.

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