A microwave treatment device for potassium-bearing shale intermediates

Abstract

The invention relates to the technical field of potassium-containing shale intermediate processing equipment, in particular to a potassium-containing shale intermediate microwave processing device. According to the potassium-containing shale intermediate microwave processing device, a first-stage microwave drying unit and a second-stage microwave drying unit are arranged, supporting legs are arranged below the first-stage microwave drying unit and the second-stage microwave drying unit for supporting, and a conveyor belt is arranged between the supporting legs and the first-stage microwave drying unit and between the supporting legs and the second-stage microwave drying unit and is longer than the first-stage microwave drying unit and the second-stage microwave drying unit. A feed port is formed in the end, exceeding the first-stage microwave drying unit, of the conveyor belt, and a collection hopper is arranged at the end, exceeding the second-stage microwave drying unit, of the conveyor belt, so that potassium-containing shale intermediates enter the device through the feed port and by controlling the moving speed of the conveyor belt, the time the conveyor belt spends in passing the two units of the microwave processing device is controlled; spray heads are arranged between the two units to achieve the purpose of second-stage acidizing after first-stage drying is realized, and therefore processing of the potassium-containing shale intermediates is thorough.

Description

technical field [0001] The invention relates to the technical field of processing equipment for potassium-containing shale intermediates, in particular to a microwave processing device for potassium-containing shale intermediates. Background technique [0002] Potassium-containing shale is a kind of ore raw material containing potassium and its richness. Most enterprises process it to produce chemical raw materials, and extract potassium and other mineral elements from it to achieve comprehensive utilization of potassium-containing shale. Purpose; in the process of comprehensive utilization of potassium-bearing shale, it is necessary to fluoride the potassium-containing shale to obtain potassium-containing shale intermediates, and then further process the potassium-containing shale intermediates to obtain depth The mineral elements in it can improve the comprehensive utilization rate of potassium-bearing shale. [0003] However, after the fluoridation treatment of potassium...

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Problems solved by technology

[0003] However, after the fluoridation treatment of potassium-bearing shale, which contains fluorine element, when it is further treated, it will cause part of the fluorine element or other gas elements to be discharged into the air and cause environmental pollution. For this reason, there are The researchers used the absorption tower to absorb the gas discharged from the treatment of potassium-containing shale intermediates, thereby reducing the content of harmful gases emitted into the air

[0004] However, the emission of harmful gas (fluorine gas) due to the traditional treatment process is produced during the drying and acidification of the potassium-bearing shale intermediate, and the drying process requires the heating of the potassium-containing shale intermediate , the acidification process is also an exothermic reaction between potassium-containing shale intermediates and chemical raw materials, which in turn causes the temperature of the discharged harmful gas to be high, so that after the gas enters the absorption tower, the absorption of the gas in the absorption tower is not complete, and the gas will still be absorbed. A large amount of harmful gas is discharged into the environment, causing environmental pollution; at the same time, it will also cause high energy consumption, making the processing cost of potassium-containing shale intermediates relatively high

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