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Method for controlling process of technique for producing sponge zirconium by using double-pot method

A technology of process control and sponge zirconium, which is applied in the field of process control of the production of sponge zirconium by the double-pot method, can solve the problems of not being able to obtain reaction data in real time, too many times of "testing the liquid level", and the impact on product quality, so as to reduce the number of times , quality improvement, and the effect of prolonging the occurrence time

Inactive Publication Date: 2014-10-08
CITIC JINZHOU METAL
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Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of process control method of double tank method production sponge zirconium process that is environment-friendly, good in timeliness and can realize automatic control, overcomes the reaction control process in the prior art "probing the liquid level" too many times, Contamination of the production process, immediate access to reaction data, and problems affecting product quality

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  • Method for controlling process of technique for producing sponge zirconium by using double-pot method
  • Method for controlling process of technique for producing sponge zirconium by using double-pot method

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specific Embodiment 1

[0032] Such as figure 1 As shown, 1000kg of zirconium tetrachloride is packed into the furnace 2 of the volatilizer, and put into a heating furnace equipped with three measuring instruments 3, and the measuring instruments 3 are piezoelectric mass measuring instruments. The reactor (the furnace of the volatilizer 2) is in close contact with the measurement surfaces of the three measuring instruments 3, and the furnace of the volatilizer is not in contact with other parts of the heating furnace body to avoid errors. After installing all the reaction parts, the three measuring instruments 3 show that the total reading is 6431kg, which is tare and reset to zero.

[0033] Raise the temperature to react, the reading of the instrument changes, the preset rate of change is 55kg / h, and the sampling period is 1min; There is no need to detect the liquid level); the deviation of the liquid level is less than ±25mm, and the effect is good. The reaction was carried out for about 20 hours...

specific Embodiment 2

[0034] 1000kg of zirconium tetrachloride is packed into the furnace 2 of the volatilizer, and put into a heating furnace equipped with three measuring instruments 3, which are mechanical mass measuring instruments. The reactor is in close contact with the measuring surfaces of the three measuring instruments 3, and the furnace of the volatilizer is not in contact with other parts of the heating furnace body to avoid errors. After installing all the reaction components, the three measuring instruments 3 show that the total reading is 6482kg, which is tare and reset to zero.

[0035] Raise the temperature to react, the reading of the instrument changes, the preset change rate is 55kg / h, and the sampling period is 20min; during the production period, the magnesium discharge operation can be performed 3 times in the reaction tank and the liquid level detection operation can be carried out for comparison and verification (in the actual production operation There is no need to detec...

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Abstract

The invention relates to a method for controlling a process of a technique for producing sponge zirconium by using a double-pot method. The method comprises the following steps: mounting a plurality of pressure or mass measurement instruments on a position, which is in direct contact with a furnace pipe flange, of an upper opening part of a heating furnace body, conveying a measured data signal to an automatic control system by using a transmitter, and driving a heating element to work under the control of a silicon controlled module to work and enable zirconium tetrachloride in the heating furnace to react, monitoring a change rate of zirconium tetrachloride according to the measurement value, and adjusting the heating power of the heating element when the measurement value is different from a preset value. The method for controlling the process of the technique for producing sponge zirconium by using the double-pot method has the beneficial effects that the method is simple in process and capable of automatically controlling the reaction, reducing times for detecting liquid level, prolonging the occurrence time of the reduction process and facilitating to the improvement of quality of the sponge zirconium.

Description

technical field [0001] The invention relates to a process control method for the process of producing zirconium sponge by a double-pot method. Background technique [0002] Zirconium is a metal with excellent properties. Its anti-corrosion performance, gas absorption performance and neutron penetration performance are very good, and it is widely used in nuclear industry and petrochemical industry. [0003] At present, in domestic production of zirconium sponge, the double-tank method using two sets of volatilizers and reaction tanks has basically replaced the single-tank method and has become the main production process. Compared with the single-pot method, the process control of the production process is relatively stable and simple, and can provide relatively high-quality zirconium sponge products. [0004] However, there are still some insurmountable difficulties in the process control of the double tank method. For example, due to the characteristics of zirconium tetra...

Claims

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Application Information

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IPC IPC(8): C22B34/14
Inventor 齐牧崔传海郭树志张玉驰金绍祥刘少彬臧博王岷于春风韩丹
Owner CITIC JINZHOU METAL
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