Orientated detection device for density of solution

Abstract

The invention discloses an orientated detection device for the density of a solution. The device comprises a floating ball (4) capable of moving along a guiding rod (2), the floating ball (4) is placed in a cavity in a shell (1), a signal trigger (6) and a signal contactor (9) are sequentially arranged at one end, away from the guiding rod (2), in the shell (1), and the side surface (3) of the shell (1) is provided with a solution feeding and discharging opening (12) communicated with the cavity. The device solves the density detection problem of a concentrated solution, realizes continuous production, reduces the quality instability of the concentrated solution, and stably improves the economic value creation efficiency.

Description

technical field [0001] The invention relates to a solution density detection device, in particular to a density detection device of a solution concentration device. Background technique [0002] In the existing industrial production, the solution concentration process often occurs, but there is no good online monitoring method at present. The common method is to manually use a density meter to detect the solution density, meet the required requirements, and then discharge the solution into the next process. Then, continue to add dilute solution in the concentration equipment, and concentrate again. This process cannot realize the continuous inspection by inspectors, and the inspection interval is usually half an hour or once an hour. If the detection is not timely, it will affect the continuity of process industry production and lead to unstable quality. [0003] For example, in the process of wet phosphoric acid concentration, 23% dilute phosphoric acid needs to be concen...

AI Technical Summary

Problems solved by technology

This process cannot realize the continuous inspection by inspectors, and the inspection interval is usually half an hour or once an hour

If the detection is not timely, it will affect the continuity of process industry production and lead to unstable quality

[0003] For example, in the process of wet phosphoric acid concentration, 23% dilute phosphoric acid needs to be concentrated and evaporated into 46% concentrated phosphoric acid; as an intermediate product in the production of subsequent diammonium phosphate products, its mass fraction is controlled at 46%; if the mass fraction is lower than 46%, Then a large amount of excess water is brought into the follow-up process, which affects the production control index of DAP and the appearance of the formed particles, and quality accidents are prone to occur; the mass fraction is too high, which greatly wastes resources and is not conducive to the subsequent control of DAP production indicators

Under the current conditions, there are no measurement and detection devices and systems that are well suited to this process, and the manual sampling method is basically used to measure the specific gravity. With the fluctuation of the control index, there is a large time deviation (half an hour) in the operation process of this method. or take samples once an hour), the sampling frequency is high, if the workers are busy with other things and fail to take samples in time, it will cause the problem of high quality scores. This method makes the product quality scores fluctuate all the time, which is not conducive to quality control. Affect product quality, but no better way to solve this problem has been found

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