Novel formula of all-electric melting furnace glass bottle container

Abstract

The invention relates to the field of glass container manufacturing, in particular to a novel formula of a full-electric melting furnace glass container. The novel formula comprises the following raw materials in percentage by weight: 73% of SiO2, 2% of Al2O3, 9.5% of CaO / MgO, 14% of Na2O / K2O, 0.7% of B2O3, 0.04% of Fe2O3, 0.54% of CeO2, 0.085% of ZrO2, 0.015% of Li2O and 0.02% of other materials, and the total weight is 100%. According to the new formula of the all-electric melting furnace glass bottle tank, the chemical stability and the mechanical strength of a white spirit glass bottle can be improved, the melting characteristic of an electric melting furnace is improved, the production requirement is met, and the purposes of quality improvement and efficiency improvement are achieved.

Description

Technical Field

[0001] The invention relates to the field of glass bottle manufacturing, in particular to a new formula for a full-electric melting furnace glass bottle. Background Art

[0002] Liquor is one of the most ethnic products in Chinese traditional food. In recent years, the liquor industry has developed rapidly.

[0003] With the improvement of living standards, people have higher and higher requirements not only for the quality of liquor products, but also for packaging. With the continuous enhancement of people's environmental awareness and customers' higher and higher quality requirements for glass products, it is a general trend for glass bottle manufacturers to adopt full electric melting to produce glass bottles. The electric melting method has many outstanding advantages, such as environmental protection, high thermal efficiency, uniform composition of the melted glass, and high product quality.

[0004] However, the advancement of high-speed filling lines has put higher and higher demands on the mechanical strength of glass bottles. The resistance of glass bottles to acid, alkali and humid air has always been a problem in the industry and has not been effectively improved. Hygienic problems such as sodium precipitation in glass bottles during storage also increase food safety risks.

[0005] Therefore, we still need to carry out further development and research to propose a solution that can solve the above problems and adapt to the full electric melting production of glass bottles. Summary of the invention

[0006] The purpose of the present invention is to provide a new formula for all-electric melting furnace glass bottles in view of the problems encountered in the current production of glass bottles by all-electric melting and the industry problems existing in the current white wine glass bottles. Through the present invention, the chemical stability and mechanical strength of white wine glass bottles can be improved, the melting characteristics of electric melting furnaces can be improved, production needs can be met, and the purpose of improving quality and increasing efficiency can be achieved.

[0007] In order to achieve the above invention object, the technical solution of the present invention is as follows:

[0008] ZrO 2 Application in the preparation of glass bottles using an all-electric melting furnace.

[0009] Furthermore, in the application described above, ZrO 2 The amount added is 0.085% of the mass of the glass bottle.

[0010] A new formula for all-electric furnace glass bottles and jars, calculated as oxides, includes the following raw materials by weight:

[0011]

[0012] Others are unavoidable impurities, such as TiO 2 、SO3 And other substances brought in by other raw materials.

[0013] In this formula, zirconium dioxide (ZrO 2 ) is made of zircon (ZrO 2 :SiO 2 ) contains ZrO267.23%, SiO 2 32.77%.) ZrO 2 Adding it to glass can improve the viscosity, hardness, elasticity, refractive index, chemical stability of the glass, and reduce the thermal expansion coefficient of the glass.

[0014] But containing ZrO 2 The glass has high viscosity, high melting point and is difficult to melt; the relative molecular weight is large, and the glass liquid is not easy to homogenize; when the content exceeds 5%, it is easy to crystallize. This puts forward high requirements on the material design and melting process.

[0015] Preferably, the new formula for all-electric melting furnace glass bottles and jars also includes a clarifier.

[0016] Furthermore, the clarifier is a glass clarifier specially used for electric furnaces.

[0017] Furthermore, the amount of the clarifier added is 1% of the total weight of the new formula of the glass jar, that is, for every 100 kg of material, the amount of the clarifier added is 1 kg.

[0018] Preferably, the clarifier is added simultaneously with the new glass jar formula; that is, the clarifier is added after being evenly mixed with the materials in the new glass jar formula.

[0019] Preferably, a method for preparing (using) a new formula of an all-electric melting furnace glass bottle comprises the following steps:

[0020] The raw materials of various oxides are weighed in proportion, and then the raw material zircon sand containing zirconium element is premixed with small materials with an addition amount of less than 1%, and then mixed with the raw materials with an addition amount of more than 1% to obtain the product.

[0021] Zircon sand raw materials and small materials are premixed before being mixed with the main materials to reduce their specific gravity, which will cause local stratification and affect the uniformity of the batch materials, thus affecting the quality of the glass.

[0022] Preferably, the method of using the new formula for glass bottles and jars in an all-electric melting furnace is as follows: during the melting process, the conventional situation of the all-electric melting furnace not opening the bottom to plug in the electrode for power supply is broken, and the all-electric melting furnace is adjusted to open the bottom to plug in the electrode for power supply, thereby increasing the lower temperature by more than 40°C (such as 40°C, 41°C, 42°C, 43°C, 44°C, etc.), which is beneficial to the decomposition of zircon and the combination of silicon and oxygen to form zirconium silicate glass.

[0023] Preferably, in the method of using the new formula for glass bottles and jars in an all-electric melting furnace, in order to reduce glass liquid defects (such as crystallization and phase separation), a material channel bottom discharge device is provided at the front end of the glass liquid flow channel (the channel through which the glass material flows to the glass forming machine after being heated) in the all-electric melting furnace.

[0024] Furthermore, the all-electric melting furnace glass bottle production equipment is an existing technology, and the feeder channel it contains includes a feeder channel exhaust flue, a feeder channel heating device, a feeder channel glass liquid, a feeder channel bottom discharge device and a glass forming feeder. Among them, a feeder channel heating device is provided in the feeder channel, and a feeder channel exhaust flue is provided on the upper part of the feeder channel to discharge the smoke generated in the feeder channel; a glass forming feeder is provided behind the feeder channel, and the feeder channel glass liquid passes through the feeder channel; a feeder channel bottom discharge device is provided at about one-fifth of the length of the feeder channel.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] (I) In the prior art, especially when using all-electric furnaces to produce glass bottles, ZrO 2 Glass is difficult to melt because its melting point is 2700℃; in addition, its density is high, reaching 5.85g / cm 3 In addition, it is easy to cause crystallization and phase homogenization, which affects the quality of glass melt. Therefore, it is difficult to add ZrO 2 The glass bottles are produced by using a fully electric furnace; and this application solves the problem of containing ZrO by adjusting the formula and proportion relationship. 2 The glass with this component is difficult to melt: it has a high melting point and a high density; it is easy to crystallize during the melting process and the phase separation is not well homogenized, which affects the melting quality.

[0027] (2) Introducing zirconium oxide into bottle and container glass can improve chemical stability and mechanical strength, improve the melting characteristics of electric furnaces, meet production needs, and achieve the goal of improving quality and efficiency.

[0028] (III) This formula can improve the physical and chemical properties of glass bottles and jars, such as strength, heat resistance, chemical stability, etc., while reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the process of producing glass bottles by the all-electric melting furnace of the present invention;

[0030] Figure 2 It is a schematic diagram of the position structure of the glass liquid flow channel and the discharge device on the glass liquid flow channel.

[0031] Markings in the figure: 1 - material channel exhaust flue, 2 - material channel heating device, 3 - material channel glass liquid, 4 - material channel bottom layer discharge device, 5 - glass forming feeder, 6 - material supply channel. DETAILED DESCRIPTION

[0032] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0033] Any feature disclosed in this specification, unless otherwise stated, can be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0034] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0035] Embodiment 1:

[0036] ZrO 2 In the process of preparing glass bottles by using all-electric melting furnace, the chemical stability and mechanical strength of liquor glass bottles are improved, and the melting characteristics of electric melting furnace are improved; ZrO 2 The amount added is 0.085% of the mass of the glass bottle formula raw materials.

[0037] Embodiment 2:

[0038] A new formula for all-electric furnace glass bottles and jars, calculated as oxides, includes the following raw materials by weight:

[0039]

[0040]

[0041] Embodiment 3:

[0042] Based on the new formula of an all-electric melting furnace glass bottle in Example 2, a clarifier is also included.

[0043] Furthermore, the clarifier is a glass clarifier specially used for electric furnaces.

[0044] Furthermore, the amount of the clarifier added is 1% of the total weight of the new formula of the glass jar, that is, for every 100 kg of material, the amount of the clarifier added is 1 kg.

[0045] The clarifier is added at the same time as the new glass jar formulation.

[0046] Embodiment 4:

[0047] Embodiment 3 A method for preparing a new formula of a fully electric melting furnace glass bottle comprises the following steps:

[0048] The raw materials of various oxides are weighed in proportion, and then the raw material zircon sand containing zirconium element is premixed with small materials with an addition amount of less than 1%, and then mixed with the raw materials with an addition amount of more than 1% to obtain the product.

[0049] When compared with the one-time mixing method, it was found that the two-time mixing can reduce the problem of batch uniformity and glass liquid quality problems caused by the large bulk density of zirconium-containing raw materials and the easy stratification of batch materials.

[0050] Embodiment 5:

[0051] Because the zirconium-containing raw materials are heavy, the glass liquid is prone to phase separation and crystallization in the channel before cooling and forming. Therefore, on the basis of claims 2-4, a channel discharge device is added to the front of the glass liquid flow channel (the channel where the glass material flows to the glass forming machine after being heated) in the all-electric melting furnace, and the material is discharged continuously to reduce the occurrence of crystallization and phase separation defects of the glass liquid.

[0052] The all-electric melting furnace glass bottle production equipment is an existing technology, and the forehearth 6 it contains includes a forehearth exhaust flue 1, a forehearth heating device 2, a forehearth glass liquid 3, a forehearth bottom discharge device 4 and a glass forming feeder 5. Among them, a forehearth heating device 2 is provided in the forehearth 6, and a forehearth exhaust flue 1 is provided on the upper part of the forehearth 6 to discharge the smoke generated in the forehearth 6; a glass forming feeder 5 is provided behind the forehearth 6, and the forehearth glass liquid 3 passes through the forehearth 6; and a forehearth bottom discharge device 4 is provided at about one-fifth of the length of the forehearth 6.

[0053] In addition, based on Example 4, we broke the convention of not opening the bottom plug for power supply in the conventional method of the all-electric melting furnace. In view of the refractory nature of the zirconium-containing formula, we opened the bottom plug for power supply in the experiment, which increased the lower temperature (about 42°C), which was beneficial for the decomposition of zircon and the combination of silicon and oxygen to form zirconium silicate glass.

[0054] After testing: the impact strength of the glass bottle produced with the new formula (Example 5) is increased from 0.20J to more than 0.25J (GB / T24694_2021 requires greater than or equal to 0.20J0) (the measuring instrument is Jinan Sanquan Zhongshi Experimental Instrument Co., Ltd.).

[0055] The 480 Shunpinlang bottles produced can roll down a three-meter-high staircase to the bottom without breaking; the improved mechanical strength of the glass bottles reduces the breakage rate of the glass bottles from 0.6% to about 0.4% during transportation, storage and filling, ensuring the safety performance of the glass bottle packaging;

[0056] The chemical stability of the new formula glass bottle has reached HC3 level or above (GB / T4548-2021 requires HC3 level). The inner surface water resistance test (GB / T4548-1995) shows that 500ml container HC3 level quenching consumes 2.2ml of hydrochloric acid, and the actual quenching consumption is 1.72ml. The surface water resistance is improved, reducing food safety risks.

[0057] The new formula improves the quality of molten glass, and the pass rate has increased from the original 98.7% to over 99.14%.

[0058] Introducing zirconium oxide into bottle and container glass does not pose a food safety risk according to the standard GB 4806.5-2016 "National Food Safety Standard Glass Products".

[0059] It meets the high-speed filling production demand of 20,000 pieces / h; the glass melting conditions are improved, energy consumption is reduced, the quality of glass liquid is improved, and the glass bottles ultimately achieve the results of improving quality and efficiency.

[0060] Therefore, this formula is the first of its kind in the industry in the production of all-electric furnace glass bottles, especially in the introduction of zirconium oxide to improve the physical and chemical properties and enhance the melting quality, and has guiding significance for subsequent research and improvement of glass bottle performance.

[0061] The above-mentioned embodiments only express the specific implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the protection scope of the present application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the technical solution concept of the present application, and these all belong to the protection scope of the present application.

[0062] This background section is provided to generally present the context of the invention, and the work of the presently named inventors, the work to the extent described in this background section, and aspects of this section that did not constitute prior art at the time of application are neither explicitly nor implicitly admitted to be prior art to the present invention.

Claims

1. Application of ZrO2 in the preparation of glass bottles using an all-electric melting furnace.

2. The use according to claim 1, characterized in that: The added amount of ZrO2 is 0.085% of the mass of the glass bottle.

3. A new formula for all-electric melting furnace glass bottles, characterized in that Calculated as oxides, including the following raw materials by weight: Total 100%.

4. A new formula for all-electric melting furnace glass bottles and jars as claimed in claim 3, characterized in that: The formulation also includes a clarifying agent.

5. A new formula for all-electric melting furnace glass bottles and jars as claimed in claim 4, characterized in that: The clarifier is a special glass clarifier for electric furnaces.

6. A new formula for all-electric melting furnace glass bottles and jars as claimed in claim 4 or 5, characterized in that: The amount of clarifier added is 1% of the total weight of the new glass jar formula.

7. A new formula for all-electric melting furnace glass bottles and jars as claimed in claim 5, characterized in that: The clarifier is added at the same time as the new glass jar formulation.

8. The method for using the new formula of all-electric melting furnace glass bottles and jars as claimed in claim 3 or 5, characterized in that The following steps are involved: The raw materials of various oxides are weighed in proportion, and then the raw material zircon sand containing zirconium element is premixed with small materials with an addition amount of less than 1%, and then mixed with the raw materials with an addition amount of more than 1% to obtain the product.

9. The method for using the new formula of all-electric melting furnace glass bottles and jars as claimed in claim 3 or 5, characterized in that: During the melting process, the conventional situation of the all-electric melting furnace without bottom-plugging electrodes for power supply was broken, and the all-electric melting furnace was adjusted to bottom-plugging electrodes for power supply, which increased the lower temperature by more than 40°C, which was conducive to the decomposition of zircon and the combination of silicon and oxygen to form zirconium silicate glass.

10. The method for using the new formula of all-electric melting furnace glass bottles and jars as claimed in claim 3 or 5, characterized in that: A material channel bottom discharge device is provided in a glass liquid flow channel in a fully electric melting furnace.

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