CN112979187B - Method for recycling glass product containing high polymer material without separation and sheet - Google Patents

Abstract

The present invention relates to the technical field of glass product reuse, in particular to a method for recycling and reusing glass products containing polymer materials without separation and sheet materials; wherein, the glass products are made by laminating several glass sheets and polymer materials. The invention first rolls the glass product several times and thins it, crushes the glass piece and removes the sharp angle on the surface of the glass cullet, and then adds a predetermined filling material on the surface of the glass product after crushing the glass and removing the acute angle, and then heats the glass product. The polymer material of the glass product is foamed, and the glass cullet and the filler material are combined with the foamed polymer material, and finally cooled to obtain a sheet containing the glass cullet and the filler material. The invention uses non-separated glass products as raw materials, and can directly produce sheets containing glass granules and filling materials such as hard water-absorbing floor mats, heat-resistant bricks, heat-resistant plates, etc., and the manufacturing cost is low. The shortcomings of time-consuming and energy-consuming production of hard water-absorbing floor mats or heat-resistant bricks and heat-resistant plates have great practical value.

Description

A kind of non-separation recovery and reuse method and sheet of glass products containing polymer materials

technical field

The invention relates to the technical field of glass product reuse, in particular to a non-separated recycling method and a sheet of glass products containing polymer materials.

Background technique

In the prior art, glass products such as front windshields of automobiles, architectural glass and parts of solar panels (glass panels) are all made by laminating several glass sheets with polymer materials, for example, windshields of automobiles 1. Architectural glass is made of PVB film sandwiched between two glass sheets, and EVA film is pasted on one side of the glass sheet of the solar panel (some solar panels use PVB).

Just like the traditional way of recycling waste materials after separation, the recycling of the aforementioned glass product waste requires the separation of glass flakes and polymer materials. Crush, and then separate the cullet from the PVB film through a special process. The solar panel needs to be disassembled first, after removing the aluminum frame and junction box and other components, the disassembled solar panel is decomposed by the combustion method, and the EVA is burned through high temperature (such as above 500 degrees C), and then the glass Boards and other components are recycled and reused. The front windshield of automobiles and architectural glass are crushed first, and then the cullet is separated from the PVB film. The cost of separation is high, and it is easy to cause water pollution when cleaning with related chemicals, and it is too expensive to treat EVA packaging materials through the burning method of solar panels. Energy consumption, and the combustion process may produce toxic gases, which will cause environmental and air pollution.

In addition, when making hard water-absorbent floor mats, heat-resistant bricks, heat-resistant panels and other building materials, recycled materials are often added, such as glass powder. However, conventional hard water-absorbing floor mats, heat-resistant bricks, heat-resistant panels and other building materials are usually formed by oven drying or high-temperature sintering, which consumes a lot of energy.

Contents of the invention

The object of the present invention is to provide a glass product containing polymer material without separation recycling method and sheet, so as to solve the problems raised in the above background technology. Use non-separated glass products as raw materials to directly produce hard water-absorbing floor mats, heat-resistant bricks, heat-resistant plates and other sheets containing glass granules and filling materials, which has low manufacturing costs and solves the problem of hard water absorption in the prior art. The shortcomings of time-consuming and energy-consuming production of floor mats, heat-resistant bricks, and heat-resistant panels.

In order to achieve the above technical purpose, the present invention provides the following technical solutions:

A method for recycling and reusing glass products containing polymer materials without separation. The glass products are made by laminating several glass sheets and polymer materials; the method includes at least the following steps:

Rolling the glass product containing the polymer material to an appropriate thickness multiple times, crushing the glass product containing the polymer material and removing the acute angle on the surface of the glass cullet;

add predetermined filler material;

heating the polymer material in the glass product to foam, and combining the glass cullet with the filling material and the foamed polymer material;

After cooling and shaping, a sheet containing glass cullet and filler material is obtained.

Preferably, the glass product is an automobile front windshield made by laminating two glass sheets sandwiching a polymer material.

Preferably, the polymer material is PVB.

Preferably, the glass product is a part of a solar panel made of a glass sheet bonded to one side of a polymer material.

Preferably, the polymer material is EVA.

Preferably, the step of "crushing the glass product containing the polymer material and removing the sharp angles on the surface of the glass cullet" includes,

The glass product is input into a rolling machine for rolling, and the rolling machine includes a plurality of rollers, and the thickness of the glass product is gradually reduced after passing through the rollers for multiple times of rolling.

Preferably, the distance between the plurality of rollers is gradually reduced from the input end to the output end of the rolling machine, so that the thickness of the glass products passing through the rollers is gradually reduced.

Preferably, the step of "adding predetermined filler material" further includes a step of adding a polymer material, and the step of adding a polymer material is adding a lump of polymer material between predetermined rollers of the rolling mill.

Preferably, a step of adding a polymer material is also included between the steps of "adding a predetermined filling material" and "heating to foam the polymer material in the glass product", and the step of adding a polymer material is for the above-mentioned Add lumpy polymer material between predetermined rollers of the rolling mill.

Preferably, the filling material is one or more of glass powder, diatomaceous earth, brick or fireproof material.

In addition, the present invention also provides a sheet containing glass cullets and filling materials obtained by implementing the above-mentioned method for recycling and reusing glass products containing polymer materials without separation.

Embodiments of the present invention at least partially achieve the following beneficial effects:

The present invention includes glass products designated by polymer materials and glass flakes as raw materials, and directly uses glass products to produce hard water-absorbing floor mats, heat-resistant bricks, heat-resistant plates, etc. The sheet of glass cullet and filling material has low manufacturing cost, which solves the shortcomings of time-consuming and energy-consuming production of hard water-absorbing floor mats or heat-resistant bricks and heat-resistant plates in the prior art, and significantly reduces the production cost. High practical value and commercial value.

The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description, and are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention. In the attached picture:

Fig. 1 is the flowchart of a preferred embodiment of the present invention;

Fig. 2 is a schematic diagram of crushing glass and removing acute angle steps in a preferred embodiment of the present invention;

Fig. 3 is the flowchart of another preferred embodiment of the present invention;

Fig. 4 is a flowchart of another preferred embodiment of the present invention.

Detailed ways

In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with the examples. The following examples are only used to explain the present invention, and do not constitute a limitation to the protection scope of the present invention.

First of all, as shown in Figure 1 and Figure 2, a method 100 of non-separated recycling and reuse of glass products containing polymer materials in a preferred embodiment of the present invention is a glass product 1 that can be recycled (made of glass sheets and polymer materials) Synthesized glass product) is made into a sheet of predetermined material as raw material, and can be used as a raw material without separating the glass sheet contained in the glass product 1 from the polymer material. The glass product 1 is such as an automobile front Windshields, architectural glass and parts of solar panels (glass panels), etc. Among them, the front windshield of automobiles and architectural glass are made of polymer materials sandwiched between two glass sheets, and the polymer materials are generally It is polyvinyl butyral (Poly vinyl butyral, PVB). The part of the solar panel consists of a glass sheet and a polymer material attached to one side of the glass sheet. The polymer material generally uses ethylene-vinyl acetate copolymer ( Ethylene Vinyl Acetate, EVA), partially using PVB, the first step of the present invention is to crush the glass and remove the acute angle 110: the glass product 1 is rolled to an appropriate thickness multiple times, so that the glass pieces of the glass product 1 are crushed and the glass is removed The surface of the granule has an acute angle. In this embodiment, the glass product 1 is rolled and thinned by a thin pass process. The appropriate thick point may be a preset thickness, specifically 5mm, 10mm, 30mm or 50mm, etc. without limitation.

In detail, the above-mentioned thin pass process can be a production method in which the rubber industry uses rolling equipment (rolling mills or open mills) to roll and thin foam materials (such as rubber, etc.), and the foam materials can be masticated (Using the mechanical shear force of the thin pass to break the long molecular chain of the foaming material into small molecular chains, which can improve the process operation and processing performance), mixing (to make the additives and other ingredients evenly dispersed in the foaming material), or can be Utilize the mechanical shearing force of thinning time to pulverize the foaming material with larger particles into finer particles for easy utilization. The present invention uses a rolling machine 2 to roll and thin the glass product 1 multiple times. The rolling machine 2 To include a plurality of rollers 3, 4, 5, 6, and the distance between each of the rollers 3, 4, 5, 6 is from the input end (between the rollers 3, 4) of the rolling mill 2 toward the output end (between the rollers 5, 6). distance) gradually decreases, for example, the distance between the two cylinders 3 and 4 can be 8 mm, the distance between the two cylinders 4 and 5 can be 6 mm, the distance between the two cylinders 5 and 6 can be 2 mm, etc., so that the glass product 1 can be subjected to various Rollers 3, 4, 5, 6 can be gradually thinned after repeated rolling, and the mechanical shear force of the rolling machine 2 can be used to gradually crush the glass pieces of the glass product 1 and grind away the surface acute angle of the glass cullet.

Of course, the embodiments of the present invention are not limited to the use of the rolling machine 2 of the aforementioned multi-roller type, and a rolling machine including only two rollers can also be used to repeatedly roll the glass product 1 to make the glass of the glass product 1 The flakes are crushed and the surface sharp corners of the glass cullets are removed. As for the glass frit that falls when rolling the glass product 1, it can be filled under the rolling machine 2 as the filling material in the next step.

The second step of the embodiment of the present invention is to add filling material 120: add a predetermined filling material on the surface of the glass product 1 (top side or bottom side or top and bottom sides) after the aforementioned crushed glass and removal of acute angles, spray, coat Cloth and other methods can be used. The filling material can be one or more of glass powder, diatomaceous earth, brick or fireproof material. Which filling material to choose in this step depends on the kind of sheet to be made in the subsequent steps. For example, when you want to make diatomite water-absorbing mats, you need to choose an appropriate amount of diatomite, gypsum and glass powder as filling materials; when you want to make heat-resistant bricks, you need to choose an appropriate amount of brick materials (such as ceramic clay, stone, etc.) and Glass powder is used as the filling material, and when it is desired to make a heat-resistant board, an appropriate amount of fireproof materials (such as calcium silicate, magnesium oxide, gypsum, etc.) and glass powder should be used as the filling material.

The third step of the embodiment of the present invention is foaming 130: heating the above-mentioned glass product 1 to which the filling material has been added at a predetermined temperature, so that the polymer material of the glass product 1 is foamed, so that the glass cullet and the filling material can be combined in In the pores of the foamed polymer material. The aforementioned predetermined temperature depends on the type of polymer material. For example, when the glass product 1 is an automobile front windshield or architectural glass, the polymer material is PVB, and the melting point is above 120°C and about 155°C, then this step The temperature is above 120°C; and when the glass product 1 is a part of a solar panel, the polymer material is EVA, and the melting point is about 110°C, then the temperature in this step is about 110°C. Therefore, when the polymer material is foamed, the glass cullet and the filling material can be bonded.

The final step of the embodiment of the present invention is cooling and setting 140: after foaming, cooling and setting can obtain a sheet containing glass granules and filling materials, such as the aforementioned hard water-absorbing floor mats or building materials such as heat-resistant bricks and heat-resistant boards .

It can be seen from the above that the embodiment of the present invention is a method 100 for recycling and reusing glass products containing polymer materials without separation, which uses the aforementioned steps of crushing glass and removing acute angles, adding filling materials, foaming, and cooling to set the shape, as one of the raw materials. One glass product can be used without separation, which can reduce the cost of raw material recycling and reuse. It is more clever to use glass flakes in glass products as part of the filling material (removing acute angles after crushing), and use polymer materials as foaming materials. , Combine materials, and then foam to produce sheets containing glass granules and filling materials, such as hard water-absorbing floor mats or heat-resistant bricks, heat-resistant boards and other building materials. Adding glass powder can improve the water absorption and drainage functions of the sheet.

To sum up, due to the known method of recycling the front windshield of automobiles and building glass, the glass must be crushed first, and then the PVB and the cullet are separated, and the separation cost is high; while the recycling of the glass part of the solar panel is known, Usually, EVA is burned at high temperature, and then the remaining incombustible glass plates, solar cells, and copper foil welding wires are recycled and processed. High temperature combustion consumes energy, and the gas produced during the combustion process may be poisonous and easily cause air pollution. pollute. On the other hand, the present invention directly crushes the glass products and removes the sharp corners of the glass as one of the raw materials without separation. Therefore, the manufacturing cost of recycling and reusing the raw materials can be reduced.

Moreover, the embodiments of the present invention can directly prepare sheets such as hard water-absorbing floor mats, heat-resistant bricks, or heat-resistant panels by means of foaming. The disadvantages of conventional sheet material production methods are energy consumption. For example, conventional diatomite water-absorbing floor mats are oven-dried and shaped, while heat-resistant bricks and heat-resistant plates are formed by sintering, which consumes a lot of energy. The invention can continuously produce these sheets, and has more practical value.

In addition, the present invention uses the polymer material in the glass product as a material for foaming, combining glass cullets and filling materials. The amount of filling material added will affect the hardness of the sheet, that is, when the filling material is added The more the amount, the higher the hardness of the sheet, otherwise the lower the hardness of the sheet. Therefore, if you want to adjust the hardness of hard absorbent floor mats, heat-resistant bricks or heat-resistant boards, you can Control the amount of the filling material added.

Alternatively, the present invention can also add additional polymer materials, such as foaming materials (rubber) or plastics, to adjust the hardness or elasticity of the sheet, as shown in Figures 3 and 4, which are another preferred implementation of the present invention Example 200, 300 of non-separated recycling and reuse of glass products containing polymer materials, the steps are basically the same as the aforementioned method 100, the difference is: the method 200 further includes an addition of high The step of molecular material 210 is to add agglomerated foaming material or plastic between the predetermined rollers 3, 4, 5, 6 of the rolling mill 2, for example, the present embodiment can add agglomerates between the two rollers 4, 5 The foaming material, and the method 300 further includes a step of adding a polymer material 310 between the steps of adding the filling material 120 and the foaming 130, between the predetermined rollers 3, 4, 5, and 6 of the rolling mill 2 Add a lump of foaming material.

To sum up, the non-separated recycling method of glass products containing polymer materials of the present invention can use non-separated glass through the above-mentioned series of steps of crushing glass and removing acute angles, adding filling materials, foaming and cooling and shaping Products are used as one of the raw materials to reduce manufacturing costs, and directly use glass flakes in glass products as part of the filling material, polymer materials as foaming and bonding materials, and foam to produce sheets containing glass granules and filling materials. As a hard water-absorbent floor mat, heat-resistant brick, heat-resistant board, etc., there is no disadvantage of energy consumption in the production of conventional hard water-absorbent floor mats, heat-resistant bricks, and heat-resistant boards, and it is of great practical value.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and the description are only the principles of the present invention. Variations and improvements, which fall within the scope of the claimed invention. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims (8)

1. A glass product containing high molecular material is not separated and recycled, which is characterized in that the glass product is made by bonding a plurality of glass sheets with the high molecular material; the method at least comprises the steps of:

rolling the glass product containing the high polymer material for multiple times to a proper thickness, crushing the glass product containing the high polymer material and removing acute angles on the surfaces of glass particles;

adding a predetermined filling material;

heating to foam the high polymer material in the glass product, and combining the glass particles and the filling material with the foamed high polymer material;

cooling and shaping to obtain a sheet containing glass particles and a filling material;

the step of crushing the glass product containing the high polymer material and removing acute angles on the surfaces of glass particles comprises the steps of inputting the glass product into a rolling machine for rolling, wherein the rolling machine comprises a plurality of rollers, and the glass product is rolled around the rollers for multiple times and then gradually thinned;

wherein, the distance between the rollers is gradually reduced from the input end of the rolling mill to the output end, so that the glass product wound around the rollers is gradually thinned.

2. The method for recycling a glass product containing a polymer material without separation according to claim 1, wherein the glass product is an automobile front windshield made by laminating a polymer material sandwiched between two glass sheets.

3. The method for recycling a glass article comprising a polymeric material without separation according to claim 2, wherein the polymeric material is PVB.

4. The method for recycling a glass product containing a polymer material without separation according to claim 1, wherein the glass product is a solar panel made of a glass sheet with one side bonded to the polymer material.

5. The method for recycling a glass product containing a polymer material without separation according to claim 4, wherein the polymer material is EVA.

6. The method for recycling glass products containing high molecular materials without separation according to claim 1, wherein the filling material is one or more of glass powder, diatomite, brick material or fireproof material.

7. The method for recycling glass products containing polymer materials without separation according to claim 6, wherein the step of adding predetermined filling materials further comprises a step of adding polymer materials, wherein the step of adding polymer materials is to add polymer materials in a lump shape between predetermined rollers of the rolling mill; or

The step of adding the polymer material is also included between the step of adding the preset filling material and the step of heating to foam the polymer material in the glass product, and the step of adding the polymer material is to add the polymer material in a lump shape between preset rollers of the rolling mill.

8. A sheet material comprising glass cullet and filler produced by the method for recycling a glass product comprising a polymer material according to any one of claims 1 to 7 without separation.

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