CN214570756U - Absorption system for preparing sulfurous acid by burning sulfur - Google Patents
Absorption system for preparing sulfurous acid by burning sulfur Download PDFInfo
- Publication number
- CN214570756U CN214570756U CN202023175786.0U CN202023175786U CN214570756U CN 214570756 U CN214570756 U CN 214570756U CN 202023175786 U CN202023175786 U CN 202023175786U CN 214570756 U CN214570756 U CN 214570756U
- Authority
- CN
- China
- Prior art keywords
- absorption
- sulfur
- water
- absorption tower
- section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses an absorption system for preparing sulfurous acid by burning sulfur, which comprises a sulfur temporary storage hopper, wherein the sulfur temporary storage hopper is connected with a sulfur burning furnace by a feeding auger, the sulfur burning furnace is connected with a primary absorption tower, the primary absorption tower comprises an absorption section and a cooling section, the cooling section is connected with the bottom of the absorption section, the air inlet of the cooling section is connected with the sulfur burning furnace, the water outlet of the cooling section is connected with an acid transfer pump, the water inlet of the cooling section is connected with process water, the water inlet of the absorption section is connected with process water, the air outlet of the absorption section is connected with the air inlet of a secondary absorption tower, the outlet of the acid transfer pump is connected with a secondary absorption tower, the air outlet of the secondary absorption tower is connected with a tail gas absorption unit, the water outlet of the secondary absorption tower is connected with an acid working section, the water inlet of the tail gas absorption unit is connected with the process water, the water outlet of the tail gas absorption unit is connected with the acid working section, the absorption efficiency is improved by using the utility model, so that the tail gas does not contain sulfur dioxide basically, the atmosphere is not polluted, and the consumption of sulfur is saved.
Description
Technical Field
The utility model relates to a process system for preparing sulfurous acid by burning sulfur, in particular to an absorption system for preparing sulfurous acid by burning sulfur.
Background
The sulfurous acid is produced by burning sulfur, generally, the sulfur is burned in air to produce sulfur dioxide, and then the produced sulfur dioxide is absorbed by water to produce sulfurous acid. At present, most of common absorption forms are one-stage or two-stage spraying absorption towers, the cross section area is small, the effective height is low, and the pressure required by a nozzle for forming spray is large. And the contact area and time of the water drops formed by spraying and the sulfur dioxide gas are limited, the whole absorption efficiency is not high, and the ideal more than 99 percent is difficult to achieve, and the actual rate is only 80 to 90 percent. Therefore, a large amount of unabsorbed sulfur dioxide gas is directly discharged to the air along with the tail gas, and serious pollution is caused to the environment.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an absorption system of sulphur burning system sulfurous acid solves the lower problem of absorption efficiency when sulphur burning system sulfurous acid in prior art.
The purpose of the utility model is realized like this: an absorption system for preparing sulfurous acid by burning sulfur comprises a sulfur burning system, a primary absorption tower, an acid-preparing transfer pump, a secondary absorption tower and a tail gas absorption unit, wherein the sulfur burning system comprises a temporary sulfur storage hopper, a feeding auger and a sulfur burning furnace, the discharge end of the temporary sulfur storage hopper is connected with the feed inlet of the sulfur burning furnace through the feeding auger, the gas outlet of the sulfur burning furnace is connected with the primary absorption tower, the primary absorption tower comprises an absorption section and a cooling section, the cooling section is connected with the bottom of the absorption section, the gas inlet of the cooling section is connected with the gas outlet of the sulfur burning furnace, the water outlet of the cooling section is connected with the inlet of the acid-preparing transfer pump, the water inlet of the cooling section is connected with process water, the gas outlet of the acid-preparing transfer pump is connected with the gas inlet of the secondary absorption tower, and the gas outlet of the secondary absorption tower is connected with the gas inlet of the tail gas absorption unit, and a water outlet of the secondary absorption tower is connected with an acid working section, a water inlet of the tail gas absorption unit is connected with process water, and a water outlet of the tail gas absorption unit is connected with the acid working section.
The utility model discloses the during operation, sulphur are fully burnt in the sulphur fires burning furnace, and the sulfur dioxide gas and the air mixture entering one-level absorption tower of formation cool off the absorption under the effect of process water, and the tail gas entering second grade absorption tower of one-level absorption tower absorbs, and the tail gas entering tail gas absorption unit of second grade absorption tower discharges in the air again after absorption treatment. Compared with the prior art, the beneficial effects of the utility model reside in that: through using the utility model discloses make the sulfur dioxide that the burning generated through the absorption of one-level absorption tower, second grade absorption tower and tail gas absorption unit, improve absorption efficiency for do not contain sulfur dioxide basically in the tail gas, can not cause the pollution to the atmosphere, saved the consumption of sulphur simultaneously.
As an improvement of the utility model, the heat-exchanger-type cold water tower heat pump unit further comprises a heat exchanger, the heat source end of the heat exchanger is connected with the circulating water port of the tail gas absorption unit, and the cold source end of the heat exchanger is connected with the cold water tower circulating system. The temperature of absorbed water in the tail gas absorption unit is reduced by arranging the heat exchanger, and the absorption effect is further ensured.
As the improvement of the utility model, the air inlet of one-level absorption tower is fired the furnace gas outlet through admission line and sulphur and is linked to each other, the gas outlet of second grade absorption tower links to each other with the air inlet of tail gas absorption unit through the pipeline of giving vent to anger, be provided with pressure sensor on the admission line of one-level absorption tower and the pipeline of giving vent to anger of second grade absorption tower. Whether the material blockage phenomenon exists in the absorption tower can be judged in time by detecting the pressure difference between the two positions.
As an improvement of the utility model, the heat exchanger is a plate heat exchanger.
As the utility model discloses an improvement, the water inlet of cooling zone connects the process water through first inlet channel, the water inlet of absorption section connects the process water through the second inlet channel, the water inlet of tail gas absorption unit connects the process water through the third inlet channel, all be equipped with flowmeter and automatic control governing valve on first inlet channel and the second inlet channel, be equipped with flowmeter and manual valve on the third inlet channel.
Drawings
Fig. 1 is a schematic diagram of the present invention.
The system comprises a temporary sulfur storage hopper 1, a feeding auger 2, a sulfur combustion furnace 3, an air inlet pipeline 4, a primary absorption tower 5, an acid preparation transfer pump 6, a secondary absorption tower 7, an air outlet pipeline 8, a tail gas absorption unit 9, a heat exchanger 10, a second water inlet pipeline 11, a first water inlet pipeline 12 and a third water inlet pipeline 13.
Detailed Description
As shown in fig. 1, the absorption system for producing sulfurous acid by burning sulfur comprises a temporary sulfur storage hopper 1, a feeding auger 2, a sulfur combustion furnace 3, an air inlet pipeline 4, a primary absorption tower 5, a transfer pump 6 for producing acid, a secondary absorption tower 7, an air outlet pipeline 8, a tail gas absorption unit 9, a heat exchanger 10, a second water inlet pipeline 11, a first water inlet pipeline 12 and a third water inlet pipeline 13 which are connected in sequence.
The sulfur combustion furnace 3 is connected with a primary absorption tower 5 through an air inlet pipeline 4, an air outlet of the primary absorption tower 5 is connected with an air inlet of a secondary absorption tower 7, the secondary absorption tower 7 is connected with a tail gas absorption unit 9 through an air outlet pipeline 8 of the secondary absorption tower, and an air outlet of the tail gas absorption unit 9 is directly emptied; the first-stage absorption tower 5 is provided with two water inlets, one at the upper part and one at the lower part. The bottom of the first-stage absorption tower 5 is provided with a sulfurous acid outlet which is connected with a transfer pump 6 for acid production; the acid making transfer pump 6 is connected with the secondary absorption tower 7; a sulfurous acid outlet is arranged at the bottom of the secondary absorption tower 7 and goes to an acid use working section; the tail gas absorption unit 9 is connected with the process water for cyclic absorption, the process water is subjected to heat exchange through the heat exchanger 10 in the cyclic absorption process, the temperature is reduced, the absorption effect is ensured, and the cold source for cooling is a cooling tower circulating system of a factory. And the overflow water of the tail gas absorption unit 9 is connected to an acid outlet pipeline of a secondary absorption tower and goes to an acid use working section.
The sulfur combustion system comprises a temporary sulfur storage hopper 1, a feeding auger 2 and a sulfur combustion furnace 3. The sulfur temporary storage hopper 1 is connected with the feed inlet of the feed auger 2, and the discharge port of the feed auger 2 is connected with the feed inlet of the sulfur combustion furnace 3. The sulfur combustion furnace 3 is divided into an upper part and a lower part, the upper part is a sulfur melting chamber, the lower part is a sulfur combustion chamber, sulfur firstly enters the sulfur melting chamber, and flows into the sulfur combustion chamber for combustion after being melted. The sulfur melting chamber is provided with temperature sensor, and the sulfur melting chamber can reciprocate simultaneously and adjust, controls the temperature of sulfur melting chamber in suitable scope through adjusting the distance of burning disc in sulfur melting chamber and the burning sulfur chamber. The air outlet of the sulfur melting chamber is connected with a primary absorption tower 5 through an air inlet pipeline 4.
The primary absorption tower 5 is divided into an upper part and a lower part which are respectively a cooling section and an absorption section and are integrally communicated; the lower part is provided with an air inlet, a water inlet and a sulfurous acid outlet, the air inlet is connected with an air outlet of the sulfur combustion furnace 3, the water inlet is connected with process water, and the sulfurous acid outlet is connected with the acid-making transfer pump 6; the upper part is provided with a water inlet and an air outlet, the water inlet is connected with process water, and the air outlet is connected with the secondary absorption tower 7.
The heat exchanger 10 is a plate heat exchanger.
The second water inlet pipeline 11 at the upper part of the primary absorption tower 5 is provided with a flow meter and a self-control regulating valve.
The first water inlet pipeline 12 at the lower part of the primary absorption tower 5 is provided with a flow meter and a self-control regulating valve.
The third water intake pipe 13 is provided with a flow meter and a manual valve.
The intake duct 4 and the secondary absorption tower exhaust duct 8 are provided with pressure sensors. Whether the material blockage phenomenon exists in the absorption tower can be judged in time by detecting the pressure difference between the two positions.
When the sulfur burning furnace works, the sulfur is fully burned in the sulfur burning furnace 3 and then enters the first-stage absorption tower 5, the lower part of the sulfur is cooled and then enters the upper part of the sulfur burning furnace for full absorption, and the sulfur burning furnace also has an absorption effect while being cooled; the tail gas discharged from the secondary absorption tower 7 is intensively absorbed by a tail gas absorption unit 9 and then discharged. The process water enters the primary absorption tower 5 through the second water inlet pipeline 11 and the first water inlet pipeline 12, and meanwhile, the flow can be detected in real time by a flow meter arranged on the pipeline and adjusted through an automatic control adjusting valve arranged on the pipeline. Acid liquor absorbed by the primary absorption tower 5 is sent to a secondary absorption tower 7 by an acid making transfer pump 6, and is discharged from the bottom of the secondary absorption tower 7 after sulfur dioxide is fully absorbed, and then the acid liquor is sent to an acid using working section. The water inflow of the tail gas absorption unit 9 can be detected in real time through a flow meter arranged on the third water inlet pipeline 13 and can be controlled and adjusted through a manual valve. Acid liquor generated after the tail gas absorption unit 9 absorbs sulfur dioxide in the tail gas is discharged from an overflow port and is connected to an acid outlet pipeline of the secondary absorption tower 7 to an acid utilization working section.
The present invention is not limited to the above embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some replacements and transformations for some technical features without creative labor according to the disclosed technical contents, and these replacements and transformations are all within the protection scope of the present invention.
Claims (5)
1. An absorption system for preparing sulfurous acid by burning sulfur, which is characterized by comprising a sulfur burning system, a primary absorption tower, a transfer pump for preparing acid, a secondary absorption tower and a tail gas absorption unit, wherein the sulfur burning system comprises a temporary sulfur storage hopper, a feeding auger and a sulfur burning furnace, the discharge end of the temporary sulfur storage hopper is connected with the feed inlet of the sulfur burning furnace through the feeding auger, the gas outlet of the sulfur burning furnace is connected with the primary absorption tower, the primary absorption tower comprises an absorption section and a cooling section, the cooling section is connected with the bottom of the absorption section, the gas inlet of the cooling section is connected with the gas outlet of the sulfur burning furnace, the water outlet of the cooling section is connected with the inlet of the transfer pump for preparing acid, the water inlet of the cooling section is connected with process water, the gas inlet of the absorption section is connected with the gas inlet of the secondary absorption tower, the outlet of the transfer pump for preparing acid is connected with the water inlet of the secondary absorption tower, the gas outlet of the secondary absorption tower is connected with the gas inlet of the tail gas absorption unit, the water outlet of the secondary absorption tower is connected with the acid working section, the water inlet of the tail gas absorption unit is connected with the process water, and the water outlet of the tail gas absorption unit is connected with the acid working section.
2. The absorption system for preparing sulfurous acid by combusting sulfur according to claim 1, further comprising a heat exchanger, wherein a heat source end of the heat exchanger is connected with a circulating water gap of the tail gas absorption unit, and a cold source end of the heat exchanger is connected with a cooling water tower circulating system.
3. The absorption system for producing sulfurous acid by combusting sulfur according to claim 2, wherein the heat exchanger is a plate heat exchanger.
4. The absorption system for preparing sulfurous acid by combusting sulfur according to any one of claims 1 to 3, wherein the gas inlet of the primary absorption tower is connected with the gas outlet of the sulfur combustion furnace through a gas inlet pipeline, the gas outlet of the secondary absorption tower is connected with the gas inlet of the tail gas absorption unit through a gas outlet pipeline, and pressure sensors are arranged on the gas inlet pipeline of the primary absorption tower and the gas outlet pipeline of the secondary absorption tower.
5. The absorption system for preparing sulfurous acid by burning sulfur according to any one of claims 1 to 3, wherein the water inlet of the cooling section is connected with process water through a first water inlet pipe, the water inlet of the absorption section is connected with process water through a second water inlet pipe, the water inlet of the tail gas absorption unit is connected with process water through a third water inlet pipe, the first water inlet pipe and the second water inlet pipe are respectively provided with a flow meter and a self-control regulating valve, and the third water inlet pipe is provided with a flow meter and a manual valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023175786.0U CN214570756U (en) | 2020-12-25 | 2020-12-25 | Absorption system for preparing sulfurous acid by burning sulfur |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023175786.0U CN214570756U (en) | 2020-12-25 | 2020-12-25 | Absorption system for preparing sulfurous acid by burning sulfur |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214570756U true CN214570756U (en) | 2021-11-02 |
Family
ID=78366125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023175786.0U Active CN214570756U (en) | 2020-12-25 | 2020-12-25 | Absorption system for preparing sulfurous acid by burning sulfur |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214570756U (en) |
-
2020
- 2020-12-25 CN CN202023175786.0U patent/CN214570756U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102517042B (en) | Method for heating coke oven capable of controlling multistage combustion | |
| CN101857383A (en) | Beam limekiln | |
| CN102268266A (en) | Controllable multi-section-combustion heating molded coke oven | |
| CN110117013A (en) | A kind of active carbon preparation system | |
| CN101863627A (en) | Double-beam lime kiln | |
| CN105217932A (en) | A kind of oblique flame combustion method of polyoxy of Flat Glass Furnace and combustion unit | |
| CN214570756U (en) | Absorption system for preparing sulfurous acid by burning sulfur | |
| CN107902870B (en) | Energy-saving kiln for environment-friendly unit glass wool | |
| CN101761921B (en) | Industrial coal dust burning boiler system | |
| CN101792273B (en) | Method and machine for calcining materials | |
| CN210584523U (en) | Steel plant flue gas white eliminating device | |
| CN111981489B (en) | Smoke temperature self-adjusting system for secondary combustion chamber of incinerator | |
| CN104098114B (en) | A kind of production method of potassium sulfate | |
| CN113251434A (en) | Subcritical boiler multi-target collaborative optimization air preheater anti-blocking system | |
| CN101921074A (en) | Beam-type limekiln | |
| CN205076971U (en) | Oblique flame burner of polyoxy of sheet glass melting furnace | |
| CN201666566U (en) | Burning coal industrial boiler system | |
| CN109052333B (en) | Sulfur combustion system for generating sulfur dioxide | |
| CN209588402U (en) | A kind of novel low nitrogen formula combustion module of module furnace | |
| CN209997405U (en) | flue gas whitening system for thermal power plant | |
| CN106907850A (en) | A kind of semi-coke Industrial Boiler for efficiently carrying denitration | |
| CN203116001U (en) | Low nitrogen powder fuel combustor | |
| CN208418725U (en) | A kind of packaged boiler burner for various gas multifuel combustion | |
| CN102032570A (en) | Top-fired high-temperature preheated-air flat-flame burner of hydrogen generation reforming furnace | |
| CN216346327U (en) | Air curtain type cooling and purging device for ash cooling bucket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |