Device and process for preparing sulfur dioxide gas by continuously combusting raw sulfur

A technology for sulfur dioxide and sulfur generation, which is used in sustainable manufacturing/processing, chemical industry, sulfur compounds, etc., can solve the problems of complex process steps, insufficient incineration, and high production costs, and achieve reliable system operation, good economic benefits, and production. low cost effect

Inactive Publication Date: 2017-09-19
SHANDONG TIANTAI STEEL PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sulfur is produced by direct incineration. Due to its high water content and low sulfur content, it is often not fully incinerated.
In the prior art, there is a process of processing and purifying raw sulfur into high-content sulfur and then incinerating it. For example, using an extraction process to recover and purify sulfur in sulfur mud and sulfur paste. This process has complicated steps, high energy consumption, and high production costs. High, the yield of sulfur obtained is low
There is also a process of putting raw sulfur into a sulfur melting kettle to melt sulfur and then remove impurities. This process is to add sulfur mud and sulfur paste into the sulfur melting kettle, and melt all the sulfur in the sulfur mud and sulfur paste into liquid. This process is Excessive energy consumption in the sulfur melting process greatly increases production costs
[0005] The harmless treatment of sulfur sludge and sulfur paste is an important part of the desulfurization recovery section. The by-products such as sulfur sludge and sulfur paste produced after desulfurization from coal combustion have low purity, poor quality, and difficulty in sales. Except for pure sulfur, there is no other better way to utilize it

Method used

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  • Device and process for preparing sulfur dioxide gas by continuously combusting raw sulfur
  • Device and process for preparing sulfur dioxide gas by continuously combusting raw sulfur
  • Device and process for preparing sulfur dioxide gas by continuously combusting raw sulfur

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Example 1. like Figure 1 to Figure 6 As shown, a device that can continuously incinerate sulfur to produce sulfur dioxide gas includes a first feeding system, a drying system, a second feeding system, an incineration system, a slag discharge system, and a gas collection system.

[0042] The first feeding system includes a first feeding funnel 1, and an extruding device is arranged on the bottom opening 11 of the first feeding funnel. The purpose of installing the extruding device is to extrude the raw sulfur into strips or blocks, and quantitatively and continuously input the raw sulfur to the drying system.

[0043] The drying system includes a drying chamber 2, a second transmission device, and a drying device; the drying chamber 2 is provided with a feed port 23 and an exhaust port 21; the feed port 23 of the drying chamber 2 is connected to the first feed The bottom opening 11 of the funnel is connected; the drying device includes a hot-air nozzle 22 and a second...

Embodiment 2

[0061] Example 2. The process of preparing sulfur dioxide gas by adopting the device that can continuously burn sulfur to prepare sulfur dioxide gas described in embodiment 1 may further comprise the steps:

[0062] Step 1: Continuously pour raw sulfur into the first feeding hopper 1, turn on the extruding device, extrude the raw sulfur into raw sulfur bars or raw sulfur blocks, and the extruded raw sulfur bars or raw sulfur blocks enter the drying system . The raw sulfur is extruded into raw sulfur strips or raw sulfur blocks for easy drying.

[0063] Step 2: Dry the raw sulfur strips or raw sulfur blocks in the drying system, so that the water content of the raw sulfur strips or raw sulfur blocks reaches below 10%; the dried sulfur strips or raw sulfur blocks enter the second stage The feed hopper 3 and the crushing device crush the dried sulfur strips or blocks into sulfur fragments; the sulfur fragments enter the feed port 43 of the furnace body 4 and fall onto the sheet...

Embodiment 3

[0065] Example 3. The process of preparing sulfur dioxide gas by adopting the device that can continuously burn sulfur to prepare sulfur dioxide gas described in embodiment 1 may further comprise the steps:

[0066] Step 1: Continuously pour raw sulfur into the first feeding hopper 1, turn on the extruding device, extrude the raw sulfur into raw sulfur bars or raw sulfur blocks, and the extruded raw sulfur bars or raw sulfur blocks enter the drying system .

[0067] Step 2: Dry the raw sulfur strips or raw sulfur blocks in the drying system, so that the water content of the raw sulfur strips or raw sulfur blocks reaches below 15%; the dried sulfur strips or raw sulfur blocks enter the second stage The feed hopper 3 and the crushing device crush the dried sulfur strips or blocks into sulfur fragments; the sulfur fragments enter the feed port 43 of the furnace body 4 and fall onto the sheet 46 of the first transmission chain 45 .

[0068] Step 3: Light the raw sulfur fragment...

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Abstract

The invention discloses a device and a process for preparing sulfur dioxide gas by continuously combusting raw sulfur. The device for preparing the sulfur dioxide gas by continuously combusting the raw sulfur comprises a first feeding system, a drying system, a second feeding system, a combustion system, a dreg discharging system and a gas collection system. By adopting the device, the raw sulfur can be sufficiently utilized at maximum; meanwhile, the production cost is low, the conversion efficiency is high and the consumption of energy sources is small; recycled sulfur dioxide gas can be used for producing vulcanized products so that the device has good economic benefits and social benefits.

Description

technical field [0001] The invention relates to a device and process capable of continuously burning sulfur to produce sulfur dioxide gas, and belongs to the technical field of desulfurization by-product treatment. Background technique [0002] Sulfur, usually referring to cooked sulfur or crystalline sulfur or elemental sulfur, is one of the main raw materials for the production of sulfur dioxide or sulfuric acid. At normal temperature, sulfur is solid, brittle, easily broken, good dispersibility and easy to burn. Sulfur generation, commonly known as sulfur paste or sulfur mud or sulfur slag, is amorphous, low in sulfur content, high in water content, easy to flow, amorphous, and difficult to incinerate. Therefore, factories that produce sulfur dioxide such as sulfuric acid plants do not use raw sulfur as raw materials. The desulfurization and decyanation of coal gas in coking plants in China mostly adopts the wet catalytic oxidation desulfurization process. There are two...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B17/54C04B7/28
CPCC01B17/54C04B7/28Y02P20/10Y02P40/10
Inventor 刘庆成
Owner SHANDONG TIANTAI STEEL PLASTIC
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