Cross composite geomembrane production system

Abstract

The utility model belongs to the technical field of geosynthetic material equipment, and particularly relates to a cross composite geomembrane production system. The cross composite geomembrane production system comprises a longitudinal stretching machine for longitudinally stretching a sheet and a transverse stretching drying oven for transversely stretching the sheet, and is characterized in that a composite frame is arranged behind the longitudinal stretching machine, a composite bottom roller is arranged on the composite frame, a hot pressing roller is arranged above the composite bottom roller, a glue spreading roller is arranged at the front end of the composite frame, and the glue spreading roller is arranged above the hot pressing roller. And a winding roller is arranged behind the composite frame. The utility model has the beneficial effects that the geotextile membrane sheets which are stretched longitudinally and transversely can be overlapped, compounded and pasted, the high-strength sheet material which is greatly improved in longitudinal and transverse strength, balanced in mechanical indexes in two directions and difficult to tear is obtained, the structure is simple, the operation is convenient, the efficiency is high, and the cost is low. The problems that the engineering quality is reduced, the service life is shortened and the like due to permeation and damage of an existing geomembrane in an anti-seepage project are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of geosynthetics equipment, and particularly relates to a cross composite geomembrane production system. Background Art

[0002] The existing geomembrane production process is mainly blow molding and calendering. Since the products produced by the above two processes are extrusion molding processes, the polymer macromolecular chains are not oriented, so there are disadvantages such as low strength, thick sheets, and difficult construction. For general-purpose high molecular polymers such as polyethylene and polypropylene, in the process of simple melt extrusion molding, the macromolecular chains have no orientation process and are isotropic. Therefore, when the polymer sheets produced by blow molding and calendering processes are subjected to strength tensile tests of dumbbell specimens, they show the characteristics of yielding first, then stretching, and then breaking. Generally, the yield strength is about 20-30Mpa, the elongation at break is about 600%, and the breaking strength is only about 20Mpa-30Mpa. The material indicators are heavily dependent on the performance of the raw materials. Therefore, we hope to improve this shortcoming of such products by cross-compounding the geomembranes after longitudinal and transverse stretching, and improve the comprehensive performance indicators of the product. However, there is currently no production line that can produce such products. Utility Model Content

[0003] In order to make up for the deficiencies of the prior art, the utility model provides a cross composite geomembrane production system which has a simple structure, is easy to operate and has high efficiency.

[0004] The utility model is realized through the following technical solutions:

[0005] A cross-composite geomembrane production system includes a longitudinal stretching machine for longitudinally stretching a sheet and a transverse stretching oven for transversely stretching the sheet, and is characterized in that a composite frame is provided at the rear of the longitudinal stretching machine, a composite bottom roller is provided on the composite frame, a hot pressing roller is provided above the composite bottom roller, a glue coating roller is installed at the front end of the composite frame, and a winding roller is provided at the rear of the composite frame.

[0006] A longitudinal stretching winding roller is arranged at the rear of the longitudinal stretching machine, and a transverse stretching winding roller is arranged at the rear of the transverse stretching oven.

[0007] Positioning blocks are installed at both ends of the glue coating roller. The positioning blocks are inserted into the positioning cylinder, and the positioning cylinder is fixed on the composite frame.

[0008] A tension spring is connected between the positioning block and the positioning cylinder.

[0009] The beneficial effects of the utility model are that the geomembrane sheets after longitudinal and transverse stretching can be superimposed and compositely pasted to obtain a high-strength sheet material with greatly improved longitudinal and transverse strengths, balanced mechanical indicators in two directions, and not easy to tear. The utility model has a simple structure, convenient operation, and high efficiency, and solves the problems of penetration and damage of existing geomembranes in anti-seepage projects, resulting in reduced project quality and shortened service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The utility model is further described below in conjunction with the accompanying drawings.

[0011] Attached Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] In the figure, 1 is a longitudinal stretching machine, 2 is a transverse stretching oven, 3 is a composite frame, 4 is a composite bottom roller, 5 is a hot pressing roller, 6 is a glue coating roller, 7 is a winding roller, 8 is a longitudinal stretching winding roller, 9 is a transverse stretching winding roller, 10 is a positioning block, 11 is a positioning cylinder, and 12 is a tension spring. DETAILED DESCRIPTION

[0013] The accompanying drawings are a specific embodiment of the utility model. This embodiment includes a longitudinal stretching machine 1 for longitudinally stretching a sheet and a transverse stretching oven 2 for transversely stretching a sheet. A composite frame 3 is provided at the rear of the longitudinal stretching machine 1. A composite bottom roller 4 is provided on the composite frame 3. A hot pressing roller 5 is provided above the composite bottom roller 4. A gluing roller 6 is installed at the front end of the composite frame 3. A winding roller 7 is provided at the rear of the composite frame 3. A longitudinal stretching winding roller 8 is provided at the rear of the longitudinal stretching machine 1, and a transverse stretching winding roller 9 is provided at the rear of the transverse stretching oven 2. Positioning blocks 10 are installed at both ends of the gluing roller 6. The positioning blocks 10 are inserted into the positioning cylinder 11, and the positioning cylinder 11 is fixed on the composite frame 3. A tension spring 12 is connected between the positioning block 10 and the positioning cylinder 11.

[0014] By adopting the cross-composite geomembrane production system of the utility model, a certain thickness of blown geomembrane is cut into products of a certain width, and a certain multiple of stretching is completed in the longitudinal direction on the longitudinal stretching machine 1 to form a longitudinally stretched sheet, and then a certain thickness of blown geomembrane is cut into products of a certain width, and a certain multiple of stretching is completed in the transverse direction on the transverse stretching oven 2 to form a transversely stretched sheet, the width of the transversely stretched sheet is equal to that of the longitudinally stretched sheet, and the longitudinally stretched sheet and the transversely stretched sheet are aligned up and down and sent between the composite bottom roller 4 and the hot pressing roller 5, and the composite sheet is wound by the winding roller 7. Under the action of the tension spring 12, the glue coating roller 6 is always tightly pressed on the upper surface of the longitudinally stretched sheet, and during the conveying process of the longitudinally stretched sheet, the surface is coated with hot melt glue, and the longitudinally stretched sheet and the transversely stretched sheet are tightly compounded together by the extrusion of the hot pressing roller 5 and the composite bottom roller 4. In actual production, the longitudinally stretched sheet can be wound around the longitudinal stretching winding roller 8 for winding, and the transversely stretched sheet can be wound around the transverse stretching winding roller 9 for winding, and then the two can be unwound, coated with glue, and pressed to complete the compounding.

Claims

1. A cross composite geomembrane production system, comprising a longitudinal stretching machine (1) for longitudinally stretching a sheet material and a transverse stretching oven (2) for transversely stretching the sheet material, characterized in that: A composite frame (3) is provided at the rear of the longitudinal stretching machine (1), a composite bottom roller (4) is provided on the composite frame (3), a hot pressing roller (5) is provided above the composite bottom roller (4), a glue coating roller (6) is installed at the front end of the composite frame (3), and a winding roller (7) is provided at the rear of the composite frame (3).

2. The cross composite geomembrane production system according to claim 1 is characterized in that: A longitudinal stretching winding roller (8) is provided at the rear of the longitudinal stretching machine (1), and a transverse stretching winding roller (9) is provided at the rear of the transverse stretching oven (2).

3. The cross composite geomembrane production system according to claim 1 is characterized in that: Positioning blocks (10) are installed at both ends of the glue coating roller (6), the positioning blocks (10) are inserted into the positioning cylinder (11), and the positioning cylinder (11) is fixed on the composite frame (3).

4. The cross composite geomembrane production system according to claim 3 is characterized by: A tension spring (12) is connected between the positioning block (10) and the positioning cylinder (11).

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