Manganese sulfate evaporative crystallization equipment and process

A technology of evaporative crystallization and manganese sulfate, which is applied in the direction of manganese sulfate, solution crystallization, general layout of crystallization equipment, etc., can solve the problems of high energy consumption and production cost, low content of manganese sulfate, etc., and achieve high production efficiency and low steam volume Low cost and low equipment investment

Active Publication Date: 2018-09-25
SHENZHEN SUNEVAP TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] For this reason, the technical problem solved by the present invention is that the manganese sulfate content that can be leached from lean manganese ore is low, and the energy consumption and production cost are high during normal pressure crystallization production, thereby proposing a kind of sulfuric acid with low energy consumption, small equipment investment and high production efficiency Manganese evaporation crystallization equipment and process

Method used

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  • Manganese sulfate evaporative crystallization equipment and process
  • Manganese sulfate evaporative crystallization equipment and process
  • Manganese sulfate evaporative crystallization equipment and process

Examples

Experimental program
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Effect test

Embodiment 1

[0027] The present embodiment provides a kind of manganese sulfate evaporation crystallization equipment, it is a kind of equipment that utilizes MVR technology to directly make manganese sulfate monohydrate crystal from manganese sulfate solution, see for example figure 1 , the manganese sulfate evaporative crystallization equipment includes a stock solution preheating system, an evaporation concentration system, a high temperature crystallization system and a filtration separation system connected in sequence, and also includes a The control mechanism connected to the system signal, the control mechanism is PLC, and the control mechanism is used to control the automatic processing process of the raw liquid preheating system, evaporation concentration system, high temperature crystallization system and filtration separation system. All input and output signals can be controlled by the installed The computer of PLC control software is completed, realizing the automatic producti...

Embodiment 2

[0033] The present embodiment provides a process for evaporative crystallization using the manganese sulfate evaporative crystallization equipment described in Example 1, the process is used to treat the manganese sulfate solution with a flow rate of 7.2t / h and a manganese concentration of 60g / L, which includes the following step:

[0034] S1, stock solution preheating, the manganese sulfate stock solution stored in stock solution storage tank 1 is driven into distilled water preheater 2 and fresh steam preheater 3 successively by stock solution pump 4, and the distilled water and fresh steam in distilled water preheater 2 are mixed successively The fresh steam in the preheater 3 performs heat exchange to reach the evaporation temperature of the manganese sulfate solution at 92°C. The distilled water is the secondary steam condensed water obtained by evaporating the distilled water in the distilled water tank 5, and the fresh steam is a pressure of 0.1MpaG , Saturated steam at...

experiment example

[0039] The processing capacity situation and the running energy consumption situation of the manganese acid evaporative crystallization equipment described in test embodiment 1, the results are as shown in table 1:

[0040] Table 1

[0041]

[0042]

[0043] The above results show that the evaporation and crystallization equipment and process described in this example have the advantages of small steam consumption, low energy consumption, high output, simple process, small number of equipment, and low construction investment.

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Abstract

The invention discloses manganese sulfate evaporative crystallization equipment. The manganese sulfate evaporative crystallization equipment comprises a stock solution preheating system, an evaporative concentration system, a high-temperature crystallization system and a filtering-separating system which are sequentially connected, and further comprises a control mechanism, wherein the high-temperature crystallization system comprises an enamel high-temperature kettle; and the control mechanism is in signal connection with the stock solution preheating system, the evaporative concentration system, the high-temperature crystallization system and the filtering-separating system. The equipment can be used for directly evaporating and crystallizing lean manganese ore with relatively low manganese sulfate content to obtain manganese sulfate monohydrate, is simple in structure, is small in floor space, is low in investment, realizes an automatic production process of manganese sulfate monohydrate from manganese sulfate stock solution treatment to product package, is high in production efficiency, is free of damage to environment, and is the equipment with low energy consumption and highdegree of automation. The invention further discloses a process for preparing manganese sulfate by utilizing the equipment, and the process is simple in step, is low in energy consumption, is low in production cost, increases the yield of manganese sulfate produced by lean manganese ores, and is low in consumed steam amount.

Description

technical field [0001] The invention belongs to the technical field of manganese sulfate production, and relates to a manganese sulfate evaporative crystallization equipment and process, in particular to an energy-saving manganese sulfate evaporative crystallization equipment and process that can directly obtain manganese sulfate monohydrate product. Background technique [0002] Manganese sulfate is a traditional manganese salt product, which can be widely used in the fields of chemical fertilizers, feed, paint and pesticides. At present, manganese sulfate is usually processed by high-temperature roasting, acid leaching, two-mineral acid addition, sulfur dioxide and aniline. Reduction method and other methods, among them, the high-temperature roasting method is to dry pyrolusite and pyrite ore, grind them, leaching them with dilute manganese sulfate solution after roasting, separate the wet residues, perform fine filtration, and then evaporate, concentrate, and centrifuge. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D9/02C01G45/10
CPCB01D9/0059C01G45/10
Inventor 鲍燕娟张小江周齐
Owner SHENZHEN SUNEVAP TECH
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