Sodium sulfide drying system

A drying system and sodium sulfide technology, applied in the direction of sulfur compounds, dry solid materials, dry gas arrangement, etc., can solve problems such as crystallization adhesion

Pending Publication Date: 2022-01-11
重庆市南川区晨曦化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the drying process of sodium sulfide in the above solution, as the water in the sodium sulfide liquid evaporates, moiré crystals similar to sweat stains will be formed on the edge, and this part of the crystals will stick to the inner pot wall

Method used

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  • Sodium sulfide drying system
  • Sodium sulfide drying system

Examples

Experimental program
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Effect test

example 1

[0020] as attached figure 1 As shown, a sodium sulfide drying system includes: a frame 1 and a drying pot 3, handles are provided on both sides of the drying pot 3, the handles are convenient for fixing the drying pot 3 on the frame 1, and it is also convenient to move the drying pot 3. The drying pot 3 is fixedly installed on the frame 1 by bolts and handles. The drying pot 3 is provided with an exhaust pipe, and the exhaust pipe is wound on the surface of the drying pot 3 . The water vapor is evaporated by drying, and then discharged through the exhaust pipe to heat the outer surface of the drying pot 3, and the waste heat is used to accelerate the drying efficiency of sodium sulfide, reduce energy waste, and save energy.

[0021] It also includes: a moving rod 5, a first gear 8, a second gear 9, a telescopic tube 13 and a cylinder 2 that drives the moving rod 5 to move vertically; the cylinder 2 is fixedly installed on the frame 1 through a bracket. The moving rod 5 is fi...

Embodiment 2

[0030] As shown in Embodiment 2, the difference between this embodiment and Embodiment 1 lies in the hot blast device. The hot blast device 4 includes a waste gas pipe, and the waste gas pipe is used to transport the waste gas produced by the sodium sulfide roasting system. An electric valve is provided, and the electric valve is used to control the exhaust of the waste gas pipe, and the switch of the electric valve is electrically connected with the controller. The drying pot 3 is provided with a briquetting block 21 and a hydraulic cylinder for moving the briquetting block 21 , and the briquetting block 21 is used to break the massive sodium sulfide at the bottom of the drying pot 3 . The hydraulic cylinder control switch is electrically connected with the controller. The bottom of the inner wall of the drying pot 3 is provided with an upward arc 16 , and the direction of the hot air generated by the first heating pipe 12 and the second heating pipe 11 is opposite to the arc...

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Abstract

The invention belongs to the technical field of chemical processing, and particularly relates to a sodium sulfide drying system. The system comprises a rack, a drying pot, a moving rod, a first gear, a second gear, a telescopic pipe and an air cylinder driving the moving rod to move in the vertical direction, wherein a first rack and a second rack are symmetrically arranged on the moving rod; the first rack is meshed with the first gear; the second rack is meshed with the second gear; the first gear and the second gear are provided with a first heating pipe and a second heating pipe respectively; the first heating pipe and the second heating pipe are each provided with a plurality of air holes; the telescopic pipe is fixedly installed on the side wall of the drying pot; one end of the telescopic pipe is communicated with a hot air device; and the other end of the telescopic pipe is communicated with the first heating pipe or the second heating pipe. According to the scheme, hot air is blown to the sodium sulfide liquid and is in direct contact with the surface of the sodium sulfide liquid, so that sodium sulfide is quickly dried; and the hot air blows the sodium sulfide adhered to the side wall of the drying pot, so that the partially dried sodium sulfide is prevented from adhering to the side wall of the drying pot.

Description

technical field [0001] The invention belongs to the technical field of chemical processing, and in particular relates to a sodium sulfide drying system. Background technique [0002] Sodium sulfide is also called smelly alkali, smelly soda, yellow alkali, and alkali sulfide. Sodium sulfide is an inorganic compound, and pure sodium sulfide is a colorless crystalline powder. Strong hygroscopicity, easily soluble in water. The aqueous solution is a strong alkaline reaction. Causes burns on contact with skin and hair. So sodium sulfide is commonly known as alkali sulfide. Sodium sulfide aqueous solution will be slowly oxidized into sodium thiosulfate, sodium sulfite, sodium sulfate and sodium polysulfide in air. Due to the rapid formation of sodium thiosulfate, the main product of oxidation is sodium thiosulfate. Sodium sulfide deliquesces in the air, and is carbonized and deteriorated, releasing hydrogen sulfide gas continuously. The color of industrial sodium sulfide is...

Claims

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Application Information

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IPC IPC(8): F26B9/06F26B21/00F26B23/04F26B25/22C01B17/38B02C21/00
CPCF26B9/06F26B21/001F26B21/004F26B23/04F26B25/22C01B17/38B02C21/00
Inventor 张志华
Owner 重庆市南川区晨曦化工有限公司
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