Method and system for evaluating raw material melting evenness in basalt tank furnace

A homogeneity and basalt technology, applied in design optimization/simulation, special data processing applications, instruments, etc., can solve problems such as poor melting uniformity, small production scale, and low efficiency, and achieve low cost, simple method, and easy promotion and use Effect

Active Publication Date: 2018-07-06
NANJING FIBERGLASS RES & DESIGN INST CO LTD
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Problems solved by technology

[0003] The problem to be solved by the present invention is: at present, due to the problem of poor melting uniformity caused by the high blackness of basalt melt, the disadvantages of small production scale, low efficiency and high energy consumption generally exist in the manufacture of basalt fiber in my country. In order to promote the production of basalt fiber To develop towards the large-scale kiln method, it is necessary to understand the unevenness of raw material melting in the kiln, and there is an urgent need for a method that can effectively evaluate the unevenness of basalt melting

Method used

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  • Method and system for evaluating raw material melting evenness in basalt tank furnace
  • Method and system for evaluating raw material melting evenness in basalt tank furnace
  • Method and system for evaluating raw material melting evenness in basalt tank furnace

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Embodiment 1

[0053]For a basalt pool kiln, the length, width, and height are 5m, 1m, and 0.4m, respectively, and the average residence time of the melt is 12h. figure 2 As shown, the evaluation process on the homogeneity of raw material melting includes the following steps in sequence:

[0054] 1) Obtain the temperature field and velocity field distribution of the melt in the basalt kiln, set the grid scale to 40mm, divide the kiln area into 350,000 grids, and number each grid;

[0055] 2) Discretize the melt information in the flow area of ​​the above-mentioned tank kiln, including the three continuous data of temperature, viscosity (which is a function of temperature), and flow velocity, so as to define the melt flow information of each grid unit ;

[0056] 3) At the initial moment, put 16,000 massless tracer particles at the entrance of the melt flow area of ​​the tank kiln, and number each particle;

[0057] 4) The time step Δt is defined as 60s, and the melt flow velocity of the gr...

Embodiment 2

[0064] On the basis of Example 1, 10 electrodes were added to the tank kiln, and the final melting uniformity index MIU=0.6235 was obtained by the above steps.

[0065] From the comparison of the melting uniformity index calculated by Example 1 and Example 2, the melting uniformity of Example 2 is obviously better than that of Example 1, and in actual production, it is the addition of electrodes that ensures The temperature uniformity of the melt in the upper and lower layers of the pool kiln prevents the melt from cooling and crystallizing at the bottom of the kiln.

[0066] Therefore, the method established by the present invention can quantitatively evaluate the uniformity of raw material melting in the basalt pool kiln, which has good engineering application value for the structural design of the pool kiln and the optimization of the operation process.

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Abstract

The invention discloses a method and a system for evaluating raw material melting evenness in a basalt tank furnace. The method comprises the following steps that: adopting an iterative computation way to track a plurality of no-quality tracer particles in the basalt tank furnace; calculating the melting index of each particle on a flowing path; and finally, through melting evenness indexes, carrying out quantitative evaluation on raw material melting evenness in the tank furnace. The invention provides a quick, convenient and low-cost method suitable for evaluating raw material melting evenness in the basalt tank furnace, a computer programming form can be adopted to quickly realizing evaluation, and basalt fiber production is pushed to develop to a tank furnace method large-scale direction.

Description

technical field [0001] The invention belongs to the technical field of chemical industry and relates to a basalt pool kiln melting system, in particular to a method and system for evaluating the melting uniformity of raw materials in a basalt pool kiln. Background technique [0002] Basalt fiber is a pure natural inorganic non-metallic material. It not only has high strength and high modulus, but also has excellent properties such as high and low temperature resistance, acid and alkali resistance, and fire and flame retardancy. It is widely used in aerospace, energy, chemical, building materials and other fields. with broadly application foreground. However, due to the problem of poor melting uniformity caused by the high blackness of basalt melt, the basalt fiber production enterprises in my country still mainly use the crucible furnace technology, which generally has the disadvantages of small production scale, low efficiency, and high energy consumption. In order to prom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 于守富朱立平吕士武孙雪坤王启兴杨成
Owner NANJING FIBERGLASS RES & DESIGN INST CO LTD
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