Anhydrous sodium sulfate preparation method and anhydrous sodium sulfate preparation apparatus

A technology of Yuanming powder and clarification device, applied in chemical instruments and methods, alkali metal sulfites/sulfites, alkali metal compounds, etc., can solve the problem that the skin transportation process covers a large area and is easily polluted by fine nitrate dust. environment, prone to vacuum leakage and other problems, to achieve the effect of reducing investment costs and maintenance costs, less environmental pollution, and avoiding easy sand leakage

Inactive Publication Date: 2013-05-08
四川省洪雅青衣江元明粉有限公司
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Problems solved by technology

[0010] 1) Since the system needs to consume steam during operation, the energy consumption is relatively large;
[0011] 2) The equipment is easy to corrode in the actual production process, and it is prone to vacuum leakage, which will affect the production
[0012] 3. For the conveying

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  • Anhydrous sodium sulfate preparation method and anhydrous sodium sulfate preparation apparatus
  • Anhydrous sodium sulfate preparation method and anhydrous sodium sulfate preparation apparatus
  • Anhydrous sodium sulfate preparation method and anhydrous sodium sulfate preparation apparatus

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Example Embodiment

[0041] The following non-limiting examples serve to illustrate the invention.

[0042] Such as Figure 1 to 4 As shown, a method for preparing sodium sulfate includes the following steps in sequence:

[0043] 1) Refined nitrate made from original nitrate, such as figure 2 Shown: The original nitrate produced by Glauber's salt mine is clarified by reaction (the nitrate water is preheated by the nitrate water preheating device, and then enters the nitrate water reaction clarification device, and alkali is added to the nitrate water reaction clarification device to remove Ca 2+ , Mg 2+ After impurity), the clear liquid passes through a valveless filter to obtain refined nitrate, and the turbid liquid passes through a rotating drum vacuum filter to obtain the clear liquid and then passes through a valveless filter to obtain refined nitrate, which is specifically:

[0044] A) The supernatant after the clarification of the nitrate reaction is filtered through a valveless filter to obtain ...

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Abstract

The invention discloses an anhydrous sodium sulfate preparation method and an anhydrous sodium sulfate preparation apparatus, and belongs to the anhydrous sodium sulfate preparation field. The method sequentially comprises the following steps: processing a raw sodium sulfate solution to prepare a fine sodium sulfate solution; dehydrating the fine sodium sulfate solution to prepare dry sodium sulfate; and processing the dry sodium sulfate to prepare finished sodium sulfate. The preparation apparatus comprises a nitrate solution reaction clarifier, a slurry clarifier, a non-valve filter, a rotary drum vacuum filter, a fine sodium sulfate solution storage device, a steam generation device, a multiple-effect evaporator, a centrifuge, an atmospheric condenser, a cooling tower, a cycle water pump, a Roots water ring vacuum set, a hot air drying device, a convey device, a pneumatic elevator, a nitrate storage bin and a cloth bag deduster. According to the invention, the sodium sulfate solution refining efficiency is high, the sodium sulfate solution quality is good, and the sodium sulfate solution is fully recycled; and the heat energy utilization rate in the production process is high, the production energy consumption is low, and the finished sodium sulfate has a fast convey speed and a high output.

Description

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Claims

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Application Information

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Owner 四川省洪雅青衣江元明粉有限公司
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