CN114904392A - PDS wet desulphurization catalyst feeding system and method - Google Patents
PDS wet desulphurization catalyst feeding system and method Download PDFInfo
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- 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
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- B01D53/8603—Removing sulfur compounds
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- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8696—Controlling the catalytic process
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- 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
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Abstract
The invention relates to a control method of a desulfurization catalyst adding system, which comprises the following steps: step S1: the PLC control module is used for controlling the liquid inlet electric valve control module, and the liquid inlet electric valve control module is used for controlling a water inlet electromagnetic valve and a desulfurizing liquid electromagnetic valve on a circulating water pipeline and a desulfurizing liquid circulating pipeline; step S2: the PLC control module is used for controlling the main control module of the stirrer, and the stirrer is controlled by the main control module of the stirrer to fully fuse water and desulfurization solution in the dosing tank; step S3: the PLC control module is used for controlling the metering pump control module, and the metering pump control module is used for controlling the metering pump to uniformly pump the mixed material into an external desulfurization system; step S4: the liquid level meter is controlled by the magnetic turning plate liquid level display module to monitor the height of the material in the dosing tank; the invention has the advantages that: the control of the dosing tank is realized by controlling the metering pump through the PLC, and all control, state display and operation monitoring of the dosing device can be completed through the DCS of the desulfurization system.
Description
Technical Field
The invention relates to the technical field of catalyst addition, in particular to a PDS wet desulphurization catalyst adding system and method.
Background
At present, with the increasing shortage of coking coal resources, the proportion of high-sulfur coal for coking is continuously increased, and with the increasing national environmental protection requirements, the good and bad operation of a desulfurization system becomes a key link for restricting the survival of enterprises.
For a coke-oven plant or other enterprises with coke oven gas desulfurization process, the desulfurization efficiency is a key process index, wherein the quality of the desulfurization catalyst directly influences the desulfurization efficiency. One of the decisive factors of the desulfurization efficiency is the concentration of the catalyst in the desulfurization solution at present, and the stable maintenance of the concentration of the catalyst is favorable for the stable operation of a desulfurization system and the improvement of the desulfurization efficiency. At present, the traditional Chinese medicine adding in the enterprise desulfurization working section almost adopts manual operation, and the problems of insufficient catalyst activation, uneven stirring, effective component deposition of the catalyst in the medicine adding process and the like generally exist, so that the concentration of the traditional Chinese medicine in a desulfurization system fluctuates, and the balance of the original desulfurization system is broken. When the reaction is severe, the sulfur foam in the regeneration tower is easily increased too fast in a short time, and flows into the sulfur foam tank fully through the expanded part on the top of the regeneration tower, so that accidents of tower channeling of the regeneration tower and tank overflow of the foam tank occur, and the safe, stable and efficient operation of a desulfurization system is not facilitated.
In addition, at present, there are many domestic and foreign desulfurization processes, which are mainly classified into wet desulfurization, dry desulfurization and the like. The wet desulphurization can be divided into physical desulphurization and chemical desulphurization, the flow of the two methods is similar, both methods adopt an absorption and regeneration mode, an absorbent absorbs or reacts with a sulfur-containing component, and a pregnant solution generates the absorbent and is recycled; wherein, the wet desulphurization effect is better, but the desulfurizer needs to be supplemented continuously. There is a need for a system and a control method suitable for adding PDS wet desulphurization catalyst.
Disclosure of Invention
In view of the above problems, the present invention provides a PDS wet desulphurization catalyst dosing system and method for realizing automatic control of a centralized desulphurization control system, so as to overcome the above disadvantages of the prior art.
The invention provides a PDS wet desulphurization catalyst adding system and a PDS wet desulphurization catalyst adding method, which specifically comprise the following steps:
step S1: the PLC control module is used for controlling the liquid inlet electric valve control module, and the liquid inlet electric valve control module is used for controlling a water inlet electromagnetic valve and a desulfurization liquid electromagnetic valve on a circulating water pipeline and a desulfurization liquid circulating pipeline, wherein the circulating water pipeline and the desulfurization liquid circulating pipeline supplement water and desulfurization liquid into a dosing tank through a water adding branch pipeline and a dosing branch pipeline;
step S2: the PLC control module is used for controlling the main control module of the stirrer, and the stirrer is controlled by the main control module of the stirrer to fully fuse water and desulfurization solution in the dosing tank;
step S3: the PLC control module is used for controlling the metering pump control module, and the metering pump control module is used for controlling the metering pump to uniformly pump the mixed material into an external desulfurization system;
step S4: the PLC control module is used for controlling the magnetic turning plate liquid level display module, and the magnetic turning plate liquid level display module is used for controlling the liquid level meter to monitor the height of materials in the dosing tank, wherein the magnetic turning plate liquid level display module monitors four liquid level ends of the liquid level meter, namely a high line end, a bottom line end and a low line end;
when the PLC control module detects that the liquid level reaches a low line, the PLC control module firstly controls the stirrer main control module and the metering pump control module, the stirrer and the metering pump are controlled to stop working through the stirrer main control module and the metering pump control module, the PLC control module controls the liquid inlet electric valve control module, the opening and closing of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve are controlled through the liquid inlet electric valve control module, and liquid replenishing is carried out successively and repeatedly;
when the PLC control module detects that the liquid level reaches the high altitude, the PLC control module controls the liquid inlet electric valve control module firstly, and controls the closing switches of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve through the liquid inlet electric valve control module; the PLC control module controls the stirrer main control module and the metering pump control module, and the stirrer and the metering pump are controlled to start to work through the stirrer main control module and the metering pump control module;
when the PLC control module detects that the liquid level reaches the altitude, the PLC control module controls the liquid inlet electric valve control module firstly, and controls the closing switches of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve through the liquid inlet electric valve control module; the PLC control module controls the stirrer main control module and the metering pump control module, and the stirrer and the metering pump are controlled to start to work through the stirrer main control module and the metering pump control module;
when the PLC control module detects that the liquid level reaches the bottom line, the PLC control module controls the stirrer main control module and the metering pump control module firstly, the stirrer and the metering pump are controlled to stop working through the stirrer main control module and the metering pump control module, the PLC control module controls the liquid inlet electric valve control module again, the opening and closing of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve are controlled through the liquid inlet electric valve control module, and liquid replenishing is performed successively and repeatedly.
The invention also aims to provide a PDS wet desulphurization catalyst dosing control system, which comprises: the system comprises a PLC control module, a stirrer main control module, a magnetic turning plate liquid level display module, a liquid inlet electric valve control module and a metering pump control module;
the PLC control module is used for state display and operation monitoring of the stirrer main control module, the magnetic turning plate liquid level display module, the liquid inlet electric valve control module and the metering pump control module;
the main control module of the stirrer is used for controlling the starting, stopping and state of the stirrer on the dosing tank;
the magnetic turning plate liquid level display module is used for controlling the liquid level meter to monitor the height position of the material in the dosing tank;
the liquid inlet electric valve control module is used for controlling the opening and closing states of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve;
the metering pump control module is used for controlling starting, stopping and states of the metering pump.
Preferably, the PLC control module is connected with a DCS system of the desulfurization equipment, and the DCS system remotely controls the PLC control module through Ethernet communication; the DCS is used for monitoring and controlling the PLC control modules of the automatic dosing devices, and the DCS monitors the liquid level display of the magnetic turning plate, the starting and stopping state of the stirrer, the switching and stopping state of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve and the starting and stopping state of the metering pump through the PLC control modules.
Preferably, the magnetic turning plate liquid level display module monitors four liquid level ends of the liquid level meter, namely a high line end, a bottom line end and a low line end;
when the PLC control module detects that the liquid level reaches a low line, the PLC control module firstly controls the stirrer main control module and the metering pump control module, the stirrer main control module and the metering pump control module control the stirrer and the metering pump to stop working, the PLC control module controls the liquid inlet electric valve control module, and the liquid inlet electric valve control module controls the opening and closing of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve to carry out liquid replenishing successively and repeatedly;
when the PLC control module detects that the liquid level reaches a high level, the PLC control module controls the liquid inlet electric valve control module firstly, and the liquid inlet electric valve control module controls the closing switches of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve; the PLC control module controls the stirrer main control module and the metering pump control module, and the stirrer main control module and the metering pump control module control the stirrer and the metering pump to start working;
when the PLC control module detects that the liquid level reaches the altitude, the PLC control module controls the liquid inlet electric valve control module firstly, and the liquid inlet electric valve control module controls the closing switches of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve; the PLC control module controls the stirrer main control module and the metering pump control module, and the stirrer main control module and the metering pump control module control the stirrer and the metering pump to start working;
when the PLC control module detects that the liquid level reaches the bottom line, the PLC control module controls the stirrer main control module and the metering pump control module firstly, the stirrer main control module and the metering pump control module control the stirrer and the metering pump to stop working, the PLC control module controls the liquid inlet electric valve control module again, and the liquid inlet electric valve control module controls the opening and closing of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve to carry out liquid replenishing successively and successively.
The invention has the advantages and positive effects that:
1. the control of the dosing tank is realized by controlling the metering pump through the PLC, and all control, state display and operation monitoring of the dosing device can be completed through the DCS of the desulfurization system. And the electromagnetic valve for automatically controlling the adding flow is added on the circulating water pipeline and the desulfurization solution circulating pipeline, and the automatic control of the water replenishing and desulfurization solution replenishing of the dosing tank is realized through the matching of the liquid level meter and the PLC.
2. According to the invention, the control system is used for accurately adding the medicament, although the cost of corresponding equipment is required to be invested in the early stage, the consumption of PDS medicament is saved by more than 25% compared with the traditional manual filling mode, the operation stability of a desulfurization system is improved by more than 10%, the discharge amount of desulfurization waste liquid is reduced by more than 15%, and the automatic construction of the coking industry is assisted. In addition, the intelligent medicament adding equipment can recover the cost after being invested for one year, and the economic benefit is remarkable.
Drawings
Other objects and results of the present invention will become more apparent and more readily appreciated as the same becomes better understood by reference to the following description taken in conjunction with the accompanying drawings. In the drawings:
FIG. 1 is a block flow diagram of a desulfurization catalyst dosing control system in an embodiment of the present invention.
FIG. 2 is a flowchart of a desulfurization catalyst addition control method according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that such embodiment(s) may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.
Example 1
Fig. 1 shows a schematic overall structure according to an embodiment of the present invention.
As shown in fig. 1, the desulfurization catalyst dosing control system provided in the embodiment of the present invention includes: the system comprises a PLC control module, a stirrer main control module, a magnetic turning plate liquid level display module, a liquid inlet electric valve control module and a metering pump control module;
the PLC control module is used for state display and operation monitoring of the stirrer main control module, the magnetic turning plate liquid level display module, the liquid inlet electric valve control module and the metering pump control module;
the main control module of the stirrer is used for controlling the starting, stopping and state of the stirrer on the dosing tank;
the magnetic turnover plate liquid level display module is used for controlling a liquid level meter to monitor the height position of the material in the dosing tank;
the liquid inlet electric valve control module is used for controlling the opening and closing states of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve;
the metering pump control module is used for controlling starting, stopping and states of the metering pump.
The PLC control module in the embodiment is connected with a DCS system of the desulfurization equipment, and the DCS system remotely controls the PLC control module through Ethernet communication; the DCS is used for monitoring and controlling the PLC control modules of the automatic dosing devices, and the DCS monitors the magnetic turning plate liquid level display 2, the starting and stopping states of the stirrer, the switching and stopping states of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve and the starting and stopping states of the metering pump through the PLC control modules.
The magnetic turning plate liquid level display module in the embodiment monitors four liquid level ends of the liquid level meter, namely a high line end, a bottom line end and a low line end;
when the PLC control module detects that the liquid level reaches a low line, the PLC control module firstly controls the stirrer main control module and the metering pump control module, the stirrer main control module and the metering pump control module control the stirrer and the metering pump to stop working, the PLC control module controls the liquid inlet electric valve control module, and the liquid inlet electric valve control module controls the opening and closing of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve to carry out liquid replenishing successively and repeatedly;
when the PLC control module detects that the liquid level reaches a high altitude, the PLC control module controls the liquid inlet electric valve control module firstly, and the liquid inlet electric valve control module controls the closing switches of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve; the PLC control module controls the stirrer main control module and the metering pump control module, and the stirrer main control module and the metering pump control module control the stirrer and the metering pump to start working;
when the PLC control module detects that the liquid level reaches the altitude, the PLC control module controls the liquid inlet electric valve control module firstly, and the liquid inlet electric valve control module controls the closing switches of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve; the PLC control module controls the stirrer main control module and the metering pump control module, and the stirrer main control module and the metering pump control module control the stirrer and the metering pump to start working;
when the PLC control module detects that the liquid level reaches the bottom line, the PLC control module controls the stirrer main control module and the metering pump control module firstly, the stirrer main control module and the metering pump control module control the stirrer and the metering pump to stop working, the PLC control module controls the liquid inlet electric valve control module again, and the liquid inlet electric valve control module controls the opening and closing of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve to carry out liquid replenishing successively and successively.
Example 2
Referring to fig. 2, the present embodiment provides a method for controlling a desulfurization catalyst dosing system, which specifically includes the following steps:
step S1: the PLC control module is used for controlling the liquid inlet electric valve control module, and the liquid inlet electromagnetic valve and the desulfurization liquid electromagnetic valve on the circulating water pipeline and the desulfurization liquid circulating pipeline are controlled by the liquid inlet electric valve control module, wherein the circulating water pipeline and the desulfurization liquid circulating pipeline supplement water and desulfurization liquid into the dosing tank through the water adding branch pipeline and the dosing branch pipeline;
step S2: the PLC control module is used for controlling the main control module of the stirrer, and the stirrer is controlled by the main control module of the stirrer to fully fuse water and desulfurization solution in the dosing tank;
step S3: the PLC control module is used for controlling the metering pump control module, and the metering pump control module is used for controlling the metering pump to uniformly pump the mixed material into an external desulfurization system;
step S4: the PLC control module is used for controlling the magnetic turning plate liquid level display module, and the magnetic turning plate liquid level display module is used for controlling the liquid level meter to monitor the height of materials in the dosing tank, wherein the magnetic turning plate liquid level display module monitors four liquid level ends of the liquid level meter, namely a high line end, a bottom line end and a low line end;
when the PLC control module detects that the liquid level reaches a low line, the PLC control module firstly controls the stirrer main control module and the metering pump control module, the stirrer and the metering pump are controlled to stop working through the stirrer main control module and the metering pump control module, the PLC control module controls the liquid inlet electric valve control module, the opening and closing of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve are controlled through the liquid inlet electric valve control module, and liquid replenishing is carried out successively and repeatedly;
when the PLC control module detects that the liquid level reaches the high altitude, the PLC control module controls the liquid inlet electric valve control module firstly, and controls the closing switches of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve through the liquid inlet electric valve control module; the PLC control module controls the stirrer main control module and the metering pump control module, and the stirrer and the metering pump are controlled to start to work through the stirrer main control module and the metering pump control module;
when the PLC control module detects that the liquid level reaches the altitude, the PLC control module controls the liquid inlet electric valve control module firstly, and controls the closing switches of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve through the liquid inlet electric valve control module; the PLC control module controls the stirrer main control module and the metering pump control module, and the stirrer and the metering pump are controlled to start to work through the stirrer main control module and the metering pump control module;
when the PLC control module detects that the liquid level reaches the bottom line, the PLC control module controls the stirrer main control module and the metering pump control module firstly, the stirrer and the metering pump are controlled to stop working through the stirrer main control module and the metering pump control module, the PLC control module controls the liquid inlet electric valve control module again, the opening and closing of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve are controlled through the liquid inlet electric valve control module, and liquid replenishing is performed successively and repeatedly.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. A control method of a PDS wet desulphurization catalyst adding system is characterized by comprising the following steps:
step S1: the PLC control module is used for controlling the liquid inlet electric valve control module, and the liquid inlet electromagnetic valve and the desulfurization liquid electromagnetic valve on the circulating water pipeline and the desulfurization liquid circulating pipeline are controlled by the liquid inlet electric valve control module, wherein the circulating water pipeline and the desulfurization liquid circulating pipeline supplement water and desulfurization liquid into the dosing tank through the water adding branch pipeline and the dosing branch pipeline;
step S2: the PLC control module is used for controlling the main control module of the stirrer, and the stirrer is controlled by the main control module of the stirrer to fully fuse water and desulfurization solution in the dosing tank;
step S3: the PLC control module is used for controlling the metering pump control module, and the metering pump control module is used for controlling the metering pump to uniformly pump the mixed material into an external desulfurization system;
step S4: the PLC control module is used for controlling the magnetic turning plate liquid level display module, and the magnetic turning plate liquid level display module is used for controlling the liquid level meter to monitor the height of materials in the dosing tank, wherein the magnetic turning plate liquid level display module monitors four liquid level ends of the liquid level meter, namely a high line end, a bottom line end and a low line end;
when the PLC control module detects that the liquid level reaches a low line, the PLC control module firstly controls the stirrer main control module and the metering pump control module, the stirrer and the metering pump are controlled to stop working through the stirrer main control module and the metering pump control module, the PLC control module controls the liquid inlet electric valve control module, the opening and closing of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve are controlled through the liquid inlet electric valve control module, and liquid replenishing is carried out successively and repeatedly;
when the PLC control module detects that the liquid level reaches the high altitude, the PLC control module controls the liquid inlet electric valve control module firstly, and controls the closing switches of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve through the liquid inlet electric valve control module; the PLC control module controls the stirrer main control module and the metering pump control module, and the stirrer and the metering pump are controlled to start to work through the stirrer main control module and the metering pump control module;
when the PLC control module detects that the liquid level reaches the altitude, the PLC control module controls the liquid inlet electric valve control module firstly, and controls the closing switches of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve through the liquid inlet electric valve control module; the PLC control module controls the stirrer main control module and the metering pump control module, and the stirrer and the metering pump are controlled to start to work through the stirrer main control module and the metering pump control module;
when the PLC control module detects that the liquid level reaches the bottom line, the PLC control module controls the stirrer main control module and the metering pump control module firstly, the stirrer and the metering pump are controlled to stop working through the stirrer main control module and the metering pump control module, the PLC control module controls the liquid inlet electric valve control module again, the opening and closing of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve are controlled through the liquid inlet electric valve control module, and liquid replenishing is performed successively and repeatedly.
2. A PDS wet desulphurization catalyst dosing control system is characterized by comprising: the system comprises a PLC control module, a stirrer main control module, a magnetic turning plate liquid level display module, a liquid inlet electric valve control module and a metering pump control module;
the PLC control module is used for state display and operation monitoring of the stirrer main control module, the magnetic turning plate liquid level display module, the liquid inlet electric valve control module and the metering pump control module;
the main control module of the stirrer is used for controlling the starting, stopping and state of the stirrer on the dosing tank;
the magnetic turnover plate liquid level display module is used for controlling a liquid level meter to monitor the height position of the material in the dosing tank;
the liquid inlet electric valve control module is used for controlling the opening and closing states of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve;
the metering pump control module is used for controlling starting, stopping and states of the metering pump.
3. The PDS wet desulphurization catalyst dosing control system according to claim 2, wherein the PLC control module is connected with a DCS system of the desulphurization device, and the DCS system remotely controls the PLC control module through Ethernet communication; the DCS is used for monitoring and controlling the PLC control modules of the automatic dosing devices, and the DCS monitors the liquid level display of the magnetic turning plate, the starting and stopping state of the stirrer, the switching and stopping state of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve and the starting and stopping state of the metering pump through the PLC control modules.
4. The PDS wet desulphurization catalyst dosing control system according to claim 2, wherein the magnetic flap liquid level display module monitors four liquid level ends of the liquid level meter, namely a high line end, a bottom line end and a low line end;
when the PLC control module detects that the liquid level reaches a low line, the PLC control module firstly controls the stirrer main control module and the metering pump control module, the stirrer main control module and the metering pump control module control the stirrer and the metering pump to stop working, the PLC control module controls the liquid inlet electric valve control module, and the liquid inlet electric valve control module controls the opening and closing of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve to carry out liquid replenishing successively and repeatedly;
when the PLC control module detects that the liquid level reaches a high altitude, the PLC control module controls the liquid inlet electric valve control module firstly, and the liquid inlet electric valve control module controls the closing switches of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve; the PLC control module controls the stirrer main control module and the metering pump control module, and the stirrer main control module and the metering pump control module control the stirrer and the metering pump to start working;
when the PLC control module detects that the liquid level reaches the altitude, the PLC control module controls the liquid inlet electric valve control module firstly, and the liquid inlet electric valve control module controls the closing switches of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve; the PLC control module controls the stirrer main control module and the metering pump control module, and the stirrer main control module and the metering pump control module control the stirrer and the metering pump to start working;
when the PLC control module detects that the liquid level reaches the bottom line, the PLC control module controls the stirrer main control module and the metering pump control module firstly, the stirrer main control module and the metering pump control module control the stirrer and the metering pump to stop working, the PLC control module controls the liquid inlet electric valve control module again, and the liquid inlet electric valve control module controls the opening and closing of the water inlet electromagnetic valve and the desulfurization liquid electromagnetic valve to carry out liquid replenishing successively and successively.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204474454U (en) * | 2015-02-09 | 2015-07-15 | 重庆林德科技发展有限公司 | Without fouling formula cooling circulating water system |
| CN106975414A (en) * | 2017-04-14 | 2017-07-25 | 安徽普氏生态环境工程有限公司 | A kind of Full-automatic quantitative medicine dissolving and adding equipment |
| CN111686568A (en) * | 2020-05-18 | 2020-09-22 | 成都市排水有限责任公司 | Sludge incineration flue gas emission standard control system and method |
| CN212819188U (en) * | 2019-12-31 | 2021-03-30 | 深圳粤鹏环保技术股份有限公司 | Automatic dispensing device of liquid waste water treatment medicament |
| WO2021128323A1 (en) * | 2019-12-27 | 2021-07-01 | 蒋伯康 | Biogas generating pit for use in organic fertilizer production |
| WO2022116453A1 (en) * | 2020-12-03 | 2022-06-09 | 麦王环境技术股份有限公司 | Method and apparatus for bio-enhanced treatment of coal gasification wastewater |
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2022
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| CN204474454U (en) * | 2015-02-09 | 2015-07-15 | 重庆林德科技发展有限公司 | Without fouling formula cooling circulating water system |
| CN106975414A (en) * | 2017-04-14 | 2017-07-25 | 安徽普氏生态环境工程有限公司 | A kind of Full-automatic quantitative medicine dissolving and adding equipment |
| WO2021128323A1 (en) * | 2019-12-27 | 2021-07-01 | 蒋伯康 | Biogas generating pit for use in organic fertilizer production |
| CN212819188U (en) * | 2019-12-31 | 2021-03-30 | 深圳粤鹏环保技术股份有限公司 | Automatic dispensing device of liquid waste water treatment medicament |
| CN111686568A (en) * | 2020-05-18 | 2020-09-22 | 成都市排水有限责任公司 | Sludge incineration flue gas emission standard control system and method |
| WO2022116453A1 (en) * | 2020-12-03 | 2022-06-09 | 麦王环境技术股份有限公司 | Method and apparatus for bio-enhanced treatment of coal gasification wastewater |
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