CN113769546A - Automatic desulfurization control device - Google Patents
Automatic desulfurization control device Download PDFInfo
- Publication number
- CN113769546A CN113769546A CN202111130361.4A CN202111130361A CN113769546A CN 113769546 A CN113769546 A CN 113769546A CN 202111130361 A CN202111130361 A CN 202111130361A CN 113769546 A CN113769546 A CN 113769546A
- Authority
- CN
- China
- Prior art keywords
- control device
- slaked lime
- bin
- desulfurization
- automatic
- 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.)
- Pending
Links
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 32
- 230000023556 desulfurization Effects 0.000 title claims abstract description 32
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 30
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 30
- 235000011116 calcium hydroxide Nutrition 0.000 claims abstract description 30
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 30
- 238000005303 weighing Methods 0.000 claims abstract description 12
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000005086 pumping Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract description 3
- 235000011941 Tilia x europaea Nutrition 0.000 abstract description 3
- 239000004571 lime Substances 0.000 abstract description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 3
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/346—Controlling the process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/502—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific solution or suspension
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/504—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses an automatic control device for desulfurization, which comprises a slaked lime storage bin and a desulfurization tower, wherein the slaked lime storage bin is connected with the desulfurization tower; the bottom of the slaked lime storage bin is connected with a transfer bin, and a plurality of weighing sensors are fixed at the bottom of the transfer bin; the transfer bin is connected with the desulfurizing tower through a conveying pipeline, and a variable-frequency star-shaped ash discharge valve for controlling the outflow of slaked lime in the transfer bin is arranged on the conveying pipeline; the weighing sensor and the variable-frequency star-shaped ash discharge valve are connected by a main control device arranged on the device; after the desulfurization automatic control device is transformed by adopting the process, the metering device is added, the lime amount sprayed into the deacidification tower can be accurately metered, manual intervention is completely not needed, automatic index control is realized, and parameter overproof caused by human factors is avoided.
Description
Technical Field
The invention relates to the technical field of household garbage incineration, in particular to an automatic desulfurization control device.
Background
The common desulfurization processes in the household garbage incineration power plant comprise dry desulfurization, semi-dry desulfurization and wet desulfurization, wherein the semi-dry desulfurization is divided into rotary atomization desulfurization and circulating fluidization desulfurization; the common technique of the circulating fluidized desulfurization method is to configure a slaked lime storage bin, discharge the materials through a star-shaped ash discharge valve, and convey the materials into a desulfurization tower through a Roots blower to react with high-temperature flue gas, thereby achieving the purpose of desulfurization.
The existing desulfurizing tower has no metering device, and the real-time sprayed amount of the slaked lime cannot be accurately metered; the spraying amount of slaked lime is completely and manually controlled, and feeding is not uniform, so that the index fluctuation of hydrogen chloride and sulfur dioxide is large; the manual control of the spraying amount of the slaked lime by the desulfurizing tower often causes the phenomenon that the attention of personnel is not concentrated or adjustment is forgotten in other matters, so that the indexes exceed the standards.
Disclosure of Invention
The invention aims to provide an automatic desulfurization control device which is convenient to install and reasonable in structure, so as to overcome the defects in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
an automatic control device for desulfurization comprises a slaked lime storage bin and a desulfurization tower; the bottom of the slaked lime storage bin is connected with a transfer bin, and a plurality of weighing sensors are fixed at the bottom of the transfer bin; the transfer bin is connected with the desulfurizing tower through a conveying pipeline, and a variable-frequency star-shaped ash discharge valve for controlling the outflow of slaked lime in the transfer bin is arranged on the conveying pipeline; the weighing sensor is connected with the variable-frequency star-shaped ash discharge valve through a main control device arranged on the device.
Preferably, the conveying pipeline is connected with the transfer bin through flexible connection, and the slaked lime storage bin is connected with the transfer bin through flexible connection.
Preferably, an electric ash discharge valve is arranged on a connecting pipeline arranged between the slaked lime storage bin and the transit bin; the electric dust discharge valve is connected with a main control device arranged on the device.
Preferably, the master control device is a PLC controller.
Preferably, a slaked lime pump for pumping slaked lime is arranged on one side of the conveying pipeline, which is close to the desulfurizing tower; and is connected with a main control device of the device.
Preferably, 4 weighing sensors are distributed at the bottom of the transfer bin at equal intervals and are arranged at four corners of the bottom.
Compared with the prior art, the invention has the beneficial effects that:
after the desulfurization automatic control device is transformed by adopting the process, the metering device is added, the lime amount sprayed into the deacidification tower can be accurately metered, manual intervention is completely not needed, automatic index control is realized, and parameter overproof caused by human factors is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an automatic desulfurization control device according to the present invention.
FIG. 2 is a schematic diagram of the frame structure of the automatic control device of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution:
an automatic control device for desulfurization comprises a slaked lime storage bin and a desulfurization tower; the bottom of the slaked lime storage bin is connected with a transfer bin, and a plurality of weighing sensors are fixed at the bottom of the transfer bin; the transfer bin is connected with the desulfurizing tower through a conveying pipeline, and a variable-frequency star-shaped ash discharge valve for controlling the outflow of slaked lime in the transfer bin is arranged on the conveying pipeline; the weighing sensor is connected with the variable-frequency star-shaped ash discharge valve through a main control device arranged on the device.
Wherein, the conveying pipeline is connected with the transfer bin by adopting flexible connection, and the slaked lime storage bin is connected with the transfer bin by adopting flexible connection; an electric ash discharge valve is arranged on a connecting pipeline arranged between the slaked lime storage bin and the transfer bin; the electric ash discharge valve is connected with a main control device arranged on the device; the master control device is a PLC controller; a slaked lime pump for pumping slaked lime is arranged on one side of the conveying pipeline, which is close to the desulfurizing tower; and is connected with a main control device arranged on the device; the bottom equidistance of transfer storehouse distributes and has 4 weighing sensor, and sets up the four corners in the bottom.
In this embodiment, the working principle is as follows:
a small-sized transfer bin is added below the original slaked lime storage bin, 4 weighing sensors are configured, a variable-frequency star-shaped ash discharge valve is added behind the transfer bin, and the variable-frequency star-shaped ash discharge valve is in flexible connection with a conveying pipeline to avoid influence on actual weight in the conveying process; then introducing the converted values of hydrogen chloride and sulfur dioxide, correlating the real-time converted values with the frequency of the variable-frequency ash discharge valve, and achieving that the converted values of hydrogen chloride or sulfur dioxide correspond to a certain frequency in a certain interval through a trapezoidal control program, thereby realizing automatic control and ensuring the discharge after reaching the standard.
After the desulfurization automatic control device is transformed by adopting the process, the metering device is added, the lime amount sprayed into the deacidification tower can be accurately metered, manual intervention is completely not needed, index automatic control is realized, and parameter overproof caused by human factors can be avoided.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. An automatic control device for desulfurization comprises a slaked lime storage bin and a desulfurization tower; the method is characterized in that: the bottom of the slaked lime storage bin is connected with a transfer bin, and a plurality of weighing sensors are fixed at the bottom of the transfer bin; the transfer bin is connected with the desulfurizing tower through a conveying pipeline, and a variable-frequency star-shaped ash discharge valve for controlling the outflow of slaked lime in the transfer bin is arranged on the conveying pipeline; the weighing sensor is connected with the variable-frequency star-shaped ash discharge valve through a main control device arranged on the device.
2. The automatic desulfurization control device according to claim 1, characterized in that: the conveying pipeline is connected with the transfer bin through flexible connection, and the slaked lime storage bin is connected with the transfer bin through flexible connection.
3. The automatic desulfurization control device according to claim 2, characterized in that: an electric ash discharge valve is arranged on a connecting pipeline arranged between the slaked lime storage bin and the transit bin; the electric dust discharge valve is connected with a main control device arranged on the device.
4. The automatic desulfurization control device according to claim 3, characterized in that: the master control device is a PLC controller.
5. The automatic desulfurization control device according to claim 1, characterized in that: a slaked lime pump for pumping slaked lime is arranged on one side of the conveying pipeline, which is close to the desulfurizing tower; and is connected with a main control device of the device.
6. The automatic desulfurization control device according to claim 1, characterized in that: the bottom equidistance of well rotary bin distributes and has 4 weighing sensor, and sets up the four corners in the bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111130361.4A CN113769546A (en) | 2021-09-26 | 2021-09-26 | Automatic desulfurization control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111130361.4A CN113769546A (en) | 2021-09-26 | 2021-09-26 | Automatic desulfurization control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113769546A true CN113769546A (en) | 2021-12-10 |
Family
ID=78853408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111130361.4A Pending CN113769546A (en) | 2021-09-26 | 2021-09-26 | Automatic desulfurization control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113769546A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109621646A (en) * | 2019-01-31 | 2019-04-16 | 王脯胜 | A kind of kiln gas defluorinate desulfurization and dust-removal method and equipment |
| CN209612626U (en) * | 2018-12-27 | 2019-11-12 | 启迪桑德环境资源股份有限公司 | The calcium hydroxide accurate measurement feeding system of consumer waste incineration dry FGD process |
-
2021
- 2021-09-26 CN CN202111130361.4A patent/CN113769546A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209612626U (en) * | 2018-12-27 | 2019-11-12 | 启迪桑德环境资源股份有限公司 | The calcium hydroxide accurate measurement feeding system of consumer waste incineration dry FGD process |
| CN109621646A (en) * | 2019-01-31 | 2019-04-16 | 王脯胜 | A kind of kiln gas defluorinate desulfurization and dust-removal method and equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101332400A (en) | Method for spraying calcium and devulcanizing in circulating fluid-bed boiler using PLC control system | |
| CN209612626U (en) | The calcium hydroxide accurate measurement feeding system of consumer waste incineration dry FGD process | |
| CN204777659U (en) | Limestone flour addition system for desulfurization in circulating fluidized bed boiler stove | |
| CN113769546A (en) | Automatic desulfurization control device | |
| CN103418228B (en) | Intelligent sncr denitration system | |
| CN109833766A (en) | A kind of novel semi-dry desulphurization calcium hydroxide charging metering system and method | |
| CN205093505U (en) | Long -range automatic monitoring device of six fort tea fermentation | |
| CN202555128U (en) | Equipment for desulfurizing in boiler by using semidry process desulfurization ash | |
| CN207918059U (en) | A kind of automatic powder feeder unit of flour | |
| CN203155079U (en) | Absorption tower gypsum slurry discharging system of wet flue gas desulfurization system | |
| CN210159453U (en) | Novel semi-dry desulfurization lime feeding metering system | |
| CN205216573U (en) | Boiler dry process desulphurization unit | |
| CN204790490U (en) | Central heating desulfurization dust removal automatic control system | |
| CN203663693U (en) | IntelligentSNCR (selective non-catalytic reduction) denitration system | |
| CN204454908U (en) | The dynamic aerobic fermentation treatment system of domestic waste slot type | |
| CN204777098U (en) | Biomass fuel briquetting machine automatic feeding system | |
| CN209155493U (en) | A kind of dry-process deacidification system using sodium bicarbonate as reactant | |
| CN204182286U (en) | A kind of recirculating fluidized bed that prevents collapses the device of bed | |
| CN204642759U (en) | A kind of material-blockage preventing device for lime feed bin | |
| CN202725022U (en) | Flue gas desulfurization returning device of circulating fluidized bed | |
| CN217599863U (en) | Automatic baking soda feeding system based on PLC control | |
| CN206940709U (en) | A kind of new automatic input and output material low temperature desiccation apparatus transmission system | |
| CN214297505U (en) | Fluidized air device for power plant desulfurization limestone powder bin | |
| CN218981076U (en) | Automatic high-efficient boiler desulfurization system | |
| CN210786864U (en) | Desulfurizing agent supply system applied to wet desulphurization |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |