CN212262884U - Automatic desulfurization control system - Google Patents
Automatic desulfurization control system Download PDFInfo
- Publication number
- CN212262884U CN212262884U CN202020203110.9U CN202020203110U CN212262884U CN 212262884 U CN212262884 U CN 212262884U CN 202020203110 U CN202020203110 U CN 202020203110U CN 212262884 U CN212262884 U CN 212262884U
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- CN
- China
- Prior art keywords
- control system
- flue gas
- digestion tank
- calcium hydroxide
- main controller
- 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.)
- Expired - Fee Related
Links
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 38
- 230000023556 desulfurization Effects 0.000 title claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000000843 powder Substances 0.000 claims abstract description 34
- 230000029087 digestion Effects 0.000 claims abstract description 32
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000003546 flue gas Substances 0.000 claims abstract description 31
- 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
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 30
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 28
- 239000002002 slurry Substances 0.000 claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 238000000738 capillary electrophoresis-mass spectrometry Methods 0.000 claims abstract description 12
- 230000005484 gravity Effects 0.000 claims abstract description 12
- 230000002378 acidificating effect Effects 0.000 claims abstract description 5
- 238000005303 weighing Methods 0.000 claims abstract description 5
- 239000000126 substance Substances 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 22
- 230000018044 dehydration Effects 0.000 claims description 14
- 238000006297 dehydration reaction Methods 0.000 claims description 14
- 238000012544 monitoring process Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 238000013019 agitation Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 11
- 239000000428 dust Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010438 granite Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Images
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses an automatic desulfurization control system, include: a powder bin; the gravity sensor is communicated with the powder bin and is used for weighing the calcium hydroxide powder in the powder bin; the digestion tank is communicated with the powder bin and is used for preparing calcium hydroxide slurry; the digestion tank is also provided with a water inlet valve which is used for controlling the flow of water entering the digestion tank; a liquid level meter is also arranged in the digestion tank; the desulfurizing tower is communicated with the digestion tank; the flue gas valve is communicated with the desulfurizing tower and is used for controlling the flow of the flue gas entering the desulfurizing tower; the flue gas valve is provided with a CEMS for detecting the concentration of acidic substances in the flue gas; and the main controller is respectively connected with the gravity sensor, the water inlet valve, the liquid level meter, the flue gas valve and the CEMS and is used for respectively controlling the flow of the calcium hydroxide powder, the water and the flue gas. The utility model discloses a desulfurization control system can realize high degree automation, and reduce the cost of labor, and running cost.
Description
Technical Field
The utility model relates to a desulfurization technical field, in particular to automatic desulfurization control system.
Background
The desulfurizing tower is a tower type equipment for desulfurizing industrial waste gas, is originally built by granite and is most widely applied, utilizes a water film desulfurization dust removal principle, is also called a granite water film desulfurization dust remover or a granite water film desulfurization dust remover, has the advantages of easy maintenance, can simultaneously achieve the effects of dust removal and desulfurization by preparing different dust removing agents, and is gradually changed into the manufacturing of glass fiber reinforced plastics along with the development of the glass fiber reinforced plastics technology at present. Most of the existing desulfurization control methods are manual or semi-automatic operation modes. Manual or semi-automatic operation is easy to malfunction, and data is unstable.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
The utility model aims at providing an automatic desulfurization control system in order to solve the above-mentioned problem.
(II) technical scheme
In order to solve the above problem, a first aspect of the present invention provides an automatic desulfurization control system, including: a powder bin; the gravity sensor is communicated with the powder bin and is used for weighing the calcium hydroxide powder in the powder bin; the digestion tank is communicated with the powder bin and is used for preparing calcium hydroxide slurry; the digestion tank is also provided with a water inlet valve, and the water inlet valve is used for controlling the flow of water entering the digestion tank; a liquid level meter is also arranged in the digestion tank; a desulfurizing tower in communication with the digester tank; the flue gas valve is communicated with the desulfurizing tower and is used for controlling the flow of flue gas entering the desulfurizing tower; the flue gas valve is provided with a CEMS for detecting the concentration of the acidic substances in the flue gas; and the main controller is respectively connected with the gravity sensor, the water inlet valve, the liquid level meter, the flue gas valve and the CEMS and is used for respectively controlling the flow of the calcium hydroxide powder, the water and the flue gas.
Further, still include: the dehydration module, the dehydration module sets up in the digester, the dehydration module still is equipped with the densimeter, the densimeter with main control unit connects, is used for control the work of dehydration module.
Further, still include: and the ground pool is connected with the water inlet valve and used for supplying water to the digestion tank.
Further, still include: and the slurry conveying pump is arranged between the digestion tank and the desulfurizing tower, is connected with the main controller and is used for controlling the flow of the calcium hydroxide slurry.
Further, the digestion tank includes: and the stirring module is arranged inside the digestion tank, is connected with the main controller and is used for uniformly stirring the calcium hydroxide slurry.
Further, the stirring module includes: a plurality of stirring boards, it is a plurality of the stirring board is equidistant evenly distributed.
Further, the stirring module further comprises: a PH glass electrode arranged on the stirring plate and connected with the main controller for monitoring the calcium hydroxide slurry
Further, the main controller works through a DCS and/or Siemens numerical control system.
Further, the main controller is a GGD cabinet.
Further, main control unit includes control panel, display, control circuit and shell, control panel and display all inlay and locate in the shell, control panel and display all are connected with the inside control circuit electricity of shell.
(III) advantageous effects
The above technical scheme of the utility model has following profitable technological effect:
the utility model discloses a desulfurization control system combines together desulfurization process and automatic system, has broken that current desulfurization control method is mostly manual, perhaps semi-automatic mode of operation. The problems of easy misoperation and unstable data in manual or semi-automatic operation are solved. High automation degree is realized, and the labor cost and the operation cost are reduced.
Drawings
Fig. 1 is a block diagram of an automatic desulfurization control system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
A schematic diagram of a layer structure according to an embodiment of the invention is shown in the drawing. The figures are not drawn to scale, wherein certain details are exaggerated and possibly omitted for clarity. The shapes of various regions, layers, and relative sizes and positional relationships therebetween shown in the drawings are merely exemplary, and deviations may occur in practice due to manufacturing tolerances or technical limitations, and a person skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions, as actually required.
It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
The invention will be described in more detail below with reference to the accompanying drawings. Like elements in the various figures are denoted by like reference numerals. For purposes of clarity, the various features in the drawings are not necessarily drawn to scale.
CEMS is an abbreviation of the automatic Monitoring System for flue gas, Continuous Emission Monitoring System.
Fig. 1 is a block diagram of an automatic desulfurization control system according to an embodiment of the present invention.
As shown in fig. 1, in an embodiment of the present invention, an automatic desulfurization control system is provided, including: the powder storehouse, gravity sensor and powder storehouse intercommunication, be used for weighing calcium hydroxide powder in the powder storehouse, the digester, digester and powder storehouse intercommunication, be used for preparing calcium hydroxide thick liquid, the digester still is equipped with the inlet valve, the inlet valve is used for controlling the flow that gets into the digester normal water, still be equipped with the level gauge in the digester, the desulfurizing tower and digester intercommunication, the flue gas valve communicates with the desulfurizing tower, be used for controlling the flue gas flow that gets into the desulfurizing tower, be equipped with CEMS on the flue gas valve, be used for detecting the acidic material concentration of flue gas, main control unit respectively with gravity sensor, the inlet valve, the level gauge, the flue gas valve is connected with CEMS, be used for controlling the flow of calcium hydroxide powder, water, and flue gas respectively. The utility model discloses a desulfurization control system combines together desulfurization process and automatic system, has broken that current desulfurization control method is mostly manual, perhaps semi-automatic mode of operation. The problems of easy misoperation and unstable data in manual or semi-automatic operation are solved. High automation degree is realized, and the labor cost and the operation cost are reduced.
In an optional embodiment, the method may further include: the dehydration module is arranged in the digestion tank and is also provided with a densimeter which is connected with the main controller and used for controlling the operation of the dehydration module.
In an optional embodiment, the method may further include: the ground pool is connected with the water inlet valve and used for supplying water to the digestion tank.
In an optional embodiment, the method may further include: and the slurry conveying pump is arranged between the digestion tank and the desulfurizing tower, is connected with the main controller and is used for controlling the flow of the calcium hydroxide slurry.
In an alternative embodiment, the digestion tank may comprise: and the stirring module is arranged inside the digestion tank, is connected with the main controller and is used for uniformly stirring the calcium hydroxide slurry.
In an alternative embodiment, the stirring module may include: a plurality of stirring boards, a plurality of stirring boards are equidistant evenly distributed.
In an optional embodiment, the stirring module may further include: a PH glass electrode arranged on the stirring plate and connected with the main controller for monitoring the calcium hydroxide slurry
In an alternative embodiment, the main controller operates through a DCS and/or Siemens numerical control system.
In an alternative embodiment, the master controller is a GGD cabinet.
In an optional embodiment, the main controller may include a control panel, a display, a control circuit and a housing, the control panel and the display are embedded in the housing, and the control panel and the display are electrically connected to the control circuit inside the housing.
The control scheme mainly comprises 4 parts: 1. a network; 2. a low-voltage control cabinet; 3. an automatic control system; 4. a logic control scheme.
In an alternative embodiment, the network may optionally be a Siemens system, the PROFINET Ethernet Siemens S7 protocol communication with the Siemens family configuration software WINCC, or other host computer.
In an alternative embodiment, the network may be a DCS system, a management network MNet, a system network SNet, or a control network CNet. And communicating with configuration software special for DCS.
In an alternative embodiment, the low-voltage control cabinet body adopts a GGD cabinet, and the GGD cabinet conforms to IEC439 and GB7251 standards. The low-voltage control electric appliance or original part adopts domestic first-class brand or international brand.
In an alternative embodiment, the automated control system selects the siemens family of products: 1200 series, 1500 series, 300/400 series, siemens developed configuration software WINCC system.
In an optional embodiment, the automatic control system is a DCS system: and 4, one or more of a central control DCS system, a stable and optimal DCS system and DCS manufacturer development configuration software.
The logic control scheme includes: various devices are started first, and then put into various chains after being put into automation.
The calcium hydroxide powder bins are linked: the calcium hydroxide powder bin, the gravity sensor, the calcium hydroxide digestion tank, the liquid level meter, the feeder and the water inlet valve are linked. When the liquid slurry of the digestion tank is insufficient, the algorithm library firstly calls the liquid level of the ground pool, if water exists, the ground pool pump is started, water is added into the digestion tank, if no water exists, the algorithm library opens a water inlet valve, enough water is added, and the design requirement of the liquid level is specifically seen. After water is added, a calcium hydroxide powder feeder opened by an algorithm library is fed with a set calcium hydroxide powder dosage (controlled by a main controller), a gravity sensor weighs out a set numerical value, and the feeder is closed when the set numerical value is reached. And stirring the mixture to a preset PH value by the stirring module.
The desulfurization tower is interlocked: the device comprises a desulfurizing tower interlocking device, a desulfurizing pump, a slurry delivery pump, a desulfurizing tower liquid level meter, a ground pool system and a dehydration module. Adding calcium hydroxide slurry into a chain, under two conditions, 1, the liquid level of the desulfurizing tower is low, and an algorithm library adds a certain amount of water by judging the liquid level condition; 2. when the pH of the slurry is lower than the set value, the algorithm library calls a slurry delivery pump (PWM/AD) to add the slurry, and when the pH reaches the set value, the slurry delivery Pump (PID) is stopped. Desulfurization control, by adding a circulating pump or controlling the flow, CEMS feedback data is used to control the circulating pump (internal PID algorithm block), or adjust the slurry PH (internal PID algorithm block)
A ground pool system: the liquid level of the ground pool of the chain equipment, the liquid level of the desulphurization and the liquid level of the digestion tank. When the liquid level of the local pool reaches a set value, the algorithm library calls first, if the liquid level of the digestion tank allows water to be added, the ground pool pump is started, and water is added to the liquid level of the digestion tank. If the liquid level of the digestion tank is not allowed, then the liquid level of the desulfurizing tower is called by the algorithm library, if the liquid level of the desulfurizing tower is allowed to add water, a ground pool pump is started, water is added into the desulfurizing tower, and if the liquid level of the desulfurizing tower is not allowed to add water, the alarm is not allowed to request manual treatment.
And the dehydration module is used for dehydrating the slurry when the density of the slurry reaches a set value. And then starting the dehydration module, and returning a signal correctly after the dehydration module feeds back. The slurry discharge pump is started to dewater.
The utility model aims at protecting an automatic desulfurization control system, include: the powder storehouse, gravity sensor and powder storehouse intercommunication, be used for weighing calcium hydroxide powder in the powder storehouse, the digester, digester and powder storehouse intercommunication, be used for preparing calcium hydroxide thick liquid, the digester still is equipped with the inlet valve, the inlet valve is used for controlling the flow that gets into the digester normal water, still be equipped with the level gauge in the digester, the desulfurizing tower and digester intercommunication, the flue gas valve communicates with the desulfurizing tower, be used for controlling the flue gas flow that gets into the desulfurizing tower, be equipped with CEMS on the flue gas valve, be used for detecting the acidic material concentration of flue gas, main control unit respectively with gravity sensor, the inlet valve, the level gauge, the flue gas valve is connected with CEMS, be used for controlling the flow of calcium hydroxide powder, water, and flue gas respectively. The utility model discloses a desulfurization control system combines together desulfurization process and automatic system, has broken that current desulfurization control method is mostly manual, perhaps semi-automatic mode of operation. The problems of easy misoperation and unstable data in manual or semi-automatic operation are solved. High automation degree is realized, and the labor cost and the operation cost are reduced.
The above description refers to the embodiments of the present invention. However, these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof. Various alternatives and modifications can be devised by those skilled in the art without departing from the scope of the invention, and these alternatives and modifications are intended to be within the scope of the invention.
Claims (10)
1. An automatic desulfurization control system, characterized by comprising:
a powder bin;
the gravity sensor is communicated with the powder bin and is used for weighing the calcium hydroxide powder in the powder bin;
the digestion tank is communicated with the powder bin and is used for preparing calcium hydroxide slurry; the digestion tank is also provided with a water inlet valve, and the water inlet valve is used for controlling the flow of water entering the digestion tank; a liquid level meter is also arranged in the digestion tank;
a desulfurizing tower in communication with the digester tank;
the flue gas valve is communicated with the desulfurizing tower and is used for controlling the flow of flue gas entering the desulfurizing tower; the flue gas valve is provided with a CEMS for detecting the concentration of the acidic substances in the flue gas;
and the main controller is respectively connected with the gravity sensor, the water inlet valve, the liquid level meter, the flue gas valve and the CEMS and is used for respectively controlling the flow of the calcium hydroxide powder, the water and the flue gas.
2. The automatic desulfurization control system according to claim 1, further comprising:
the dehydration module, the dehydration module sets up in the digester, the dehydration module still is equipped with the densimeter, the densimeter with main control unit connects, is used for control the work of dehydration module.
3. The automatic desulfurization control system according to claim 1, further comprising:
and the ground pool is connected with the water inlet valve and used for supplying water to the digestion tank.
4. The automatic desulfurization control system according to claim 1, further comprising:
and the slurry conveying pump is arranged between the digestion tank and the desulfurizing tower, is connected with the main controller and is used for controlling the flow of the calcium hydroxide slurry.
5. The automatic desulfurization control system according to claim 1, wherein the digester tank comprises:
and the stirring module is arranged inside the digestion tank, is connected with the main controller and is used for uniformly stirring the calcium hydroxide slurry.
6. The automatic desulfurization control system according to claim 5, wherein the stirring module includes:
a plurality of stirring boards, it is a plurality of the stirring board is equidistant evenly distributed.
7. The automatic desulfurization control system of claim 6, wherein the agitation module further comprises:
and the PH glass electrode is arranged on the stirring plate, is connected with the main controller and is used for monitoring the calcium hydroxide slurry.
8. The automatic desulfurization control system according to claim 1,
the main controller works through a DCS and/or Siemens numerical control system.
9. The automatic desulfurization control system according to claim 1,
the main controller is a GGD cabinet.
10. The automatic desulfurization control system according to claim 1,
the main controller comprises a control panel, a display, a control circuit and a shell, wherein the control panel and the display are embedded in the shell, and the control panel and the display are electrically connected with the control circuit inside the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020203110.9U CN212262884U (en) | 2020-02-24 | 2020-02-24 | Automatic desulfurization control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020203110.9U CN212262884U (en) | 2020-02-24 | 2020-02-24 | Automatic desulfurization control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212262884U true CN212262884U (en) | 2021-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020203110.9U Expired - Fee Related CN212262884U (en) | 2020-02-24 | 2020-02-24 | Automatic desulfurization control system |
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| Country | Link |
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| CN (1) | CN212262884U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112675676A (en) * | 2021-01-19 | 2021-04-20 | 贵州东峰锑业股份有限公司 | Automatic flue gas desulfurization control system with automatic batching controlled by sulfur dioxide feedback |
-
2020
- 2020-02-24 CN CN202020203110.9U patent/CN212262884U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112675676A (en) * | 2021-01-19 | 2021-04-20 | 贵州东峰锑业股份有限公司 | Automatic flue gas desulfurization control system with automatic batching controlled by sulfur dioxide feedback |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210101 |
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| CF01 | Termination of patent right due to non-payment of annual fee |