CN211913314U - Single-tower multi-region efficient desulfurization system - Google Patents
Single-tower multi-region efficient desulfurization system Download PDFInfo
- Publication number
- CN211913314U CN211913314U CN201922369729.7U CN201922369729U CN211913314U CN 211913314 U CN211913314 U CN 211913314U CN 201922369729 U CN201922369729 U CN 201922369729U CN 211913314 U CN211913314 U CN 211913314U
- Authority
- CN
- China
- Prior art keywords
- absorption tower
- limestone slurry
- spray
- layer
- desulfurization
- 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 relates to the technical field of desulfurization, in particular to a single-tower multi-region high-efficiency desulfurization system, which comprises a desulfurization absorption tower, wherein the top of the desulfurization absorption tower is provided with a plurality of spray layers, nozzles of the spray layers are connected to the bottom of the desulfurization absorption tower through pipelines to extract limestone slurry, the pipelines are provided with circulating pumps which are set as absorbing tower circulating pumps, the top of the desulfurization absorption tower is provided with four spray layers, the first spray layer limestone slurry extraction pipeline is provided with an absorbing tower circulating pump and a second spray layer, the limestone slurry extraction pipelines of the third spraying layer and the fourth spraying layer are provided with an absorption tower circulating pump and a PH measuring meter, the limestone slurry supplement box is also provided with limestone slurry, a quantitative feeding valve is arranged between the limestone slurry supplement box and the pipelines, and the nozzles of the spraying layers adopt one-way or two-way nozzles.
Description
Technical Field
The utility model belongs to the technical field of the desulfurization technique and specifically relates to a high-efficient desulfurization system of single tower multiregion.
Background
In a sulfur acid production system, the generated waste gas contains a large amount of sulfur, and in order to enable the sulfur content in the discharged gas to reach the national standard, desulfurization is required. The traditional desulfurization device has poor effect, such as activated carbon washing desulfurization, but the proportion of the activated carbon and the side product added in each washing are not easy to treat.
In the prior art, limestone-gypsum method of wet desulphurization is often adopted for desulphurization, and limestone slurry is adopted for SO in waste gas according to the chemical reaction principle2、SO3And H2S, etc. to carry out a contact reaction. However, in the existing limestone-gypsum desulphurization device adopting wet desulphurization, multiple layers of small-hole partition plates are often adopted for gas-liquid mixing, however, limestone slurry is easy to settle, the aperture of each partition plate is too small or the distance between the partition plates is too close, the limestone slurry is easy to settle on the partition plates, the partition plates are easy to block after a long time, and people are often required to disassemble, clean and install, which wastes time and labor. On the contrary, when the distance between the separation plates is too large, or the aperture of the separation plates is too small, the gas-liquid contact time is short, and the desulfurization effect is poor. And the limestone slurry is easy to settle and also easy to settle in the limestone slurry tank, and the pipeline is easy to block in the process of draining the limestone slurry into the desulfurization chamber.
The existing limestone-gypsum wet desulphurization technology adopts high liquid-gas ratio or single-tower single-circulation or single-tower double-circulation for high sulfur content in flue gas. The method achieves the expected effect, and has high power consumption and large occupied area.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model discloses a high-efficient desulfurization system of single tower multisection can realize the operation of single tower multisection, sprays the limestone slurry that the layer adopted different pH values and different concentration at the difference, reaches the purpose that area is little, energy saving and consumption greatly.
The utility model discloses a specific technical scheme as follows:
the utility model provides a high-efficient desulfurization system of single-tower multiregion, includes the desulfurization absorption tower, the top of desulfurization absorption tower is provided with the multilayer and sprays the layer, sprays the nozzle on layer and passes through pipe connection to desulfurization absorption tower bottom extraction limestone slurry, is provided with the circulating pump on the pipeline and sets for the absorption tower circulating pump.
In the technical scheme, the top of the desulfurization absorption tower is provided with the plurality of spraying layers, so that the problem of large occupied area can be solved, and the purposes of saving energy and consuming can be realized.
The utility model discloses a further improvement, the top of desulfurization absorption tower is provided with the four layers and sprays the layer, set gradually for the first layer that sprays from low to high, the second sprays the layer, the third sprays layer and fourth and sprays the layer, the first layer that sprays is from desulfurization absorption tower bottom extraction limestone slurry, be provided with the absorption tower circulating pump on the limestone slurry extraction pipeline, the second sprays the layer, the third sprays layer and fourth and sprays the layer and from desulfurization absorption tower bottom extraction limestone slurry, be provided with absorption tower circulating pump and pH meter on the limestone slurry extraction pipeline, the connection is at the first layer that sprays, the second sprays the layer, the absorption tower circulating pump that the third sprayed layer and fourth and sprays the layer is from desulfurization absorption tower bottom different height extraction limestone slurry.
The limestone slurry extraction pipeline is also provided with a limestone slurry replenishing box filled with limestone slurry, a quantitative feeding valve is arranged between the limestone slurry replenishing box and the pipeline, and the spray nozzles of the spraying layer adopt one-way or two-way nozzles.
The utility model has the advantages that: the utility model discloses spray the layer with an absorption tower and divide into different pH district, spray layer thick liquid extraction position and be not in the extraction of conventional tower bottom, adopt the thick liquid concentration and the thick liquid pH value at different positions to extract the circulation in the absorption tower. And the addition amount of limestone slurry in each circulating pipeline is controlled, so that each spraying layer has different slurry concentration and slurry pH value. The high-layer slurry has an atmosphere with low concentration and high pH value, and the low-layer solution has an atmosphere with high concentration and low pH value. Most of the acid gas can be removed after the flue gas passes through the lower spraying layer, and the residual acid gas can be rapidly removed after the flue gas enters the high-layer slurry with low concentration and high pH value, so that the expected effect is achieved. The system can reduce the liquid-gas ratio by about 40 percent, thereby greatly saving energy and consumption. The method can complete 12000mg/Nm high-yield cultivation of the acid gas at the inlet, and the removal value is 30 mg/Nm, can solve the barriers in the prior art, and can realize the single-tower efficiency of more than 99.7%.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1-desulfurization absorption tower, 2-nozzle, 3-pipeline, 4-absorption tower circulating pump, 5-quantitative feeding valve, 6-limestone slurry replenishing box and 7-pH meter.
Detailed Description
In order to deepen the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and embodiments, which are only used for explaining the present invention and are not limited to the protection scope of the present invention.
Example (b): as shown in figure 1, a single-tower multi-region high-efficiency desulfurization system comprises a desulfurization absorption tower 1, wherein a plurality of spray layers are arranged at the top of the desulfurization absorption tower 1, nozzles 2 of the spray layers are connected to the bottom of the desulfurization absorption tower 1 through a pipeline 3 to extract limestone slurry, a circulating pump arranged on the pipeline 3 is set as an absorption tower circulating pump 4, four spray layers are arranged at the top of the desulfurization absorption tower 1 and are sequentially set as a first spray layer, a second spray layer, a third spray layer and a fourth spray layer from low to high, the first spray layer extracts limestone slurry from the bottom of the desulfurization absorption tower 1, an absorption tower circulating pump 4 is arranged on a limestone slurry extraction pipeline 3, the second spray layer, the third spray layer and the fourth spray layer extract limestone slurry from the bottom of the desulfurization absorption tower 1, an absorption tower circulating pump 4 and a pH meter 7 are arranged on the limestone slurry extraction pipeline 3, and the absorption tower circulating pump and the pH meter, And the circulating pumps 4 of the absorption tower on the second spraying layer, the third spraying layer and the fourth spraying layer extract limestone slurry from the bottoms of the desulfurization absorption towers 1 at different heights. The limestone slurry extraction pipeline 3 is also provided with a limestone slurry supplement box 6 in which limestone slurry is filled, a quantitative feeding valve 5 is arranged between the limestone slurry supplement box 6 and the pipeline 3, and the spray nozzles 2 of the spraying layer adopt one-way or two-way nozzles.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a high-efficient desulfurization system of single-tower multiregion, its characterized in that includes the desulfurization absorption tower, the top of desulfurization absorption tower is provided with the multilayer and sprays the layer, sprays the nozzle on layer and is connected to through the pipeline the desulfurization absorption tower bottom extraction limestone slurry, it sets for the absorption tower circulating pump to be provided with the circulating pump on the pipeline.
2. The single-tower multi-zone high-efficiency desulfurization system according to claim 1, wherein four spray layers are arranged on the top of the desulfurization absorption tower, and are sequentially set from low to high as a first spray layer, a second spray layer, a third spray layer and a fourth spray layer.
3. The single-tower multi-zone high-efficiency desulfurization system according to claim 2, wherein said first spray level extracts limestone slurry from the bottom of said desulfurization absorption tower, and an absorption tower circulation pump is provided on a limestone slurry extraction pipe.
4. The single-tower multi-zone high-efficiency desulfurization system according to claim 3, wherein the second spray level, the third spray level and the fourth spray level extract limestone slurry from the bottom of the desulfurization absorption tower, a limestone slurry extraction pipe is provided with an absorption tower circulation pump and a pH meter, a limestone slurry replenishing tank is further provided with limestone slurry, a dosing valve is provided between the limestone slurry replenishing tank and the pipe, and the absorption tower circulation pumps connected to the first spray level, the second spray level, the third spray level and the fourth spray level extract limestone slurry from different heights of the bottom of the desulfurization absorption tower.
5. The single-tower multi-zone high-efficiency desulfurization system according to any one of claims 1 to 4, wherein the spray nozzles of the spray layer are unidirectional or bidirectional nozzles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922369729.7U CN211913314U (en) | 2019-12-25 | 2019-12-25 | Single-tower multi-region efficient desulfurization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922369729.7U CN211913314U (en) | 2019-12-25 | 2019-12-25 | Single-tower multi-region efficient desulfurization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211913314U true CN211913314U (en) | 2020-11-13 |
Family
ID=73326609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922369729.7U Active CN211913314U (en) | 2019-12-25 | 2019-12-25 | Single-tower multi-region efficient desulfurization system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211913314U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110975577A (en) * | 2019-12-25 | 2020-04-10 | 江苏天立方环保工程有限公司 | Single-tower multi-region efficient desulfurization system |
-
2019
- 2019-12-25 CN CN201922369729.7U patent/CN211913314U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110975577A (en) * | 2019-12-25 | 2020-04-10 | 江苏天立方环保工程有限公司 | Single-tower multi-region efficient desulfurization system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204841409U (en) | High -efficient gradual change is compound desulfurizing tower in grades | |
| CN101745303A (en) | Improved smoke removal purifier | |
| CN206276220U (en) | Sulfuric acid tail gas high standard exhaust system | |
| CN102423619A (en) | Composite seawater desulfurization apparatus | |
| CN103495341A (en) | Absorption tower for wet desulfurization by calcium method | |
| CN209287031U (en) | A kind of sulfur dioxide minimum discharge desulfurizer being bubbled combination tower based on spray | |
| CN201384920Y (en) | Ammonia-contained tail gas absorbing device | |
| CN202576152U (en) | Hollow spray column type flue gas desulfurization wastewater concentration device | |
| CN103979627A (en) | Multistage efficient gas stripping system of ammonia nitrogen wastewater | |
| CN211913314U (en) | Single-tower multi-region efficient desulfurization system | |
| CN205886585U (en) | Desulfidation dedusting system | |
| CN203577619U (en) | Absorption tower for desulfuration by using wet type calcium method | |
| CN201735309U (en) | Unitization efficient tail gas absorbing device for leather tail gas treatment | |
| CN201085985Y (en) | Double-return circuit spray column | |
| CN206295798U (en) | A kind of wet desulphurization device with float valve sieve aperture combined tray | |
| CN204588745U (en) | Device for treating high-concentration ammonia | |
| CN106731630A (en) | A kind of technique economized on water in ammonia desulfurizing process and control aerosol phenomenon | |
| CN102527223A (en) | Sintering machine flue gas desulfurization process and device thereof | |
| CN110975577A (en) | Single-tower multi-region efficient desulfurization system | |
| CN202179927U (en) | Device for treating waste gas containing nitric acid mist | |
| CN201776071U (en) | Three-layer spray-type desulfurization tower | |
| CN204768238U (en) | Two medium dual cycle desulfurization dust collector | |
| CN212383460U (en) | Treatment system for absorbing tail gas sulfur dioxide gas | |
| CN108889098B (en) | Energy-saving ammonia process modified by gypsum-process desulfurization device | |
| CN202427355U (en) | Flue gas desulfurization device of sintering machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |