CN109550750B - Method for cleaning lime water pipeline - Google Patents
Method for cleaning lime water pipeline Download PDFInfo
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- CN109550750B CN109550750B CN201811512687.1A CN201811512687A CN109550750B CN 109550750 B CN109550750 B CN 109550750B CN 201811512687 A CN201811512687 A CN 201811512687A CN 109550750 B CN109550750 B CN 109550750B
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- Prior art keywords
- flushing
- detection device
- pipeline
- valves
- lime water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
Abstract
In the process of treating the waste gas of the kiln, the lime water pipeline is not easy to block the pipeline for a long time, and the time and labor are wasted when the blockage is removed.
Description
Technical Field
The invention relates to a method for cleaning a lime water pipeline, which is mainly used for cleaning the lime water pipeline in the glass fiber industry in the waste gas treatment process of kiln tail gas.
Background
In the glass fiber manufacturing industry, stone powder enters a kiln to be burnt to be liquid for drawing glass fiber, sulfur components in the stone powder are combined with oxygen to become sulfur dioxide in the burning process, if the sulfur dioxide is directly discharged into the atmosphere, the environment is polluted, the existing process is to combine waste gas such as the sulfur dioxide with lime water containing calcium hydroxide to generate chemical reaction so as to achieve the purpose of eliminating the waste gas, the waste gas is injected into a washing tower, then the washing tower is sprayed with the lime water, the chemical reaction is carried out in the washing tower, an iron pipeline fixedly arranged on the washing tower is used for transporting the lime water, when the lime water is used, the pipeline is not easy to be blocked due to the flowing of the lime water, but if the lime water is not used for a long time, the lime water does not flow, the calcium carbonate in the lime water is easy to precipitate and block the pipeline, if the blockage occurs, the disassembly and assembly of the pipelines fixed on the washing tower not only wastes time and labor, but also delays the production and generates additional cost.
Disclosure of Invention
In order to solve the problems that in the process of treating the waste gas of the kiln, a lime water pipeline is not easy to block the pipeline for a long time, and time and labor are wasted when the lime water pipeline is blocked, the invention provides a method for cleaning the lime water pipeline, which ensures that the lime water pipeline keeps a constantly flowing state by additionally arranging a plurality of detection and control devices for pressure, flow and the like, is not easy to precipitate substances such as calcium carbonate and the like, thereby avoiding the blocking phenomenon.
The technical scheme adopted by the invention for solving the technical problem is as follows: the lime water pipeline is respectively provided with a flow detection device and a pressure detection device, such as an electromagnetic flowmeter and a pressure gauge, then two stop valves are arranged in the lime water pipeline along the lime water transmission direction, the two stop valves are arranged in the detection device, the stop valve is called an upstream stop valve and the other stop valve is called a downstream stop valve, two flushing valves are arranged between the two stop valves, the stop valve is called an upstream flushing valve and the other flushing valve is called a downstream flushing valve, the two flushing valves are arranged at the lower part of the lime water pipeline, the flushing pipeline is connected to the two flushing valves, the other end of the flushing pipeline is connected with a flushing pump, the flow detection device, the pressure detection device, the stop valves, the flushing valves and the flushing pump are respectively connected to a controller through leads and are controlled by the controller to read parameters, and the flow detection device and the pressure detection device are respectively used for detecting the flow and the, when the flow detection device cannot detect the flow and the pressure value detected by the pressure detection device is below a set value, the controller sends a command to close the upstream and downstream stop valves and open the upstream and downstream flushing valves and the flushing pump to keep the lime water in the pipeline flowing.
The principle of the invention is as follows: the lime water in the pipeline is easy to precipitate and solidify when the lime water is static, and the lime water conveying pipeline always keeps a flowing state by utilizing the characteristic and additionally arranging devices such as a flushing pump and the like so as to avoid the precipitation of lime and further block the pipeline.
Drawings
Fig. 1 is an installation drawing of the present invention.
FIG. 2 is a structural view of a circulation line of the present invention.
In the figure, 0 is a flow rate detection device, 1 is a pressure detection device, 2 is an upstream cut-off valve, 3 is a downstream cut-off valve, 4 is a delivery pipe, 5 is an upstream flush valve, 6 is a downstream flush valve, 7 and 9 are flush pipes, and 8 is a flush pump.
Detailed Description
As shown in figure 1, arrows in the figure indicate a transmission method of lime water, a flow detection device and a pressure detection device, such as an electromagnetic flow meter and a pressure gauge, are respectively installed at the starting end of a lime water pipeline, then two stop valves are installed behind the detection device along the lime water transmission direction, the stop valve close to the detection device is called an upstream stop valve, the other stop valve is called a downstream stop valve, two flushing valves are arranged between the two stop valves, the stop valve close to the upstream stop valve is called an upstream flushing valve, the other flushing valve is called a downstream flushing valve, the two flushing valves are installed at the lower part of the lime water pipeline, a flushing pipeline is connected to the two flushing valves, the other end of the flushing pipeline is connected with a flushing pump, the flushing pipeline is a flexible foldable pipeline, and a common leather material on the market is adopted to facilitate disassembly during blockage, and the flow detection device, the stop valve, the flushing valve and the flushing pump are respectively connected to a controller through leads, the controller controls the stop valve, the flushing valve and the flushing pump and reads parameters, the controller can be a PLC (programmable logic controller) or a singlechip, the flow detection device and the pressure detection device respectively transmit detected flow and pressure signals to the controller, when the flow detection device cannot detect the flow and the pressure value detected by the pressure detection device is below a set value, the controller sends a command to close the upstream stop valve and the downstream stop valve and open the upstream flushing valve and the flushing pump to keep lime water in a pipeline flowing, when the flow detection device cannot detect the flow and the pressure value of the pressure detection device is above the set value, the controller sends a command to open the upstream stop valve and the downstream stop valve and close the upstream flushing valve and the flushing pump to keep the transmission pipeline unblocked, and when the flow detection device detects the flow, the controller forbids to close the stop valve and forbids to open the flushing pump and the flushing motor at the same time, the set value can be modified in the controller, and the value range of the set value is between 0.1 and 2 bar.
Claims (1)
1. A method for cleaning a lime water pipeline is used in the glass fiber industry and in waste gas treatment, and is characterized in that: the lime water pipeline is respectively provided with a flow detection device and a pressure detection device, the detection device is provided with two stop valves in the rear, two flushing valves are arranged between the two stop valves, the two flushing valves are arranged at the lower part of the lime water pipeline, the two flushing valves are connected with a flushing pipeline, the other end of the flushing pipeline is connected with a flushing pump, the flow detection device, the pressure detection device, the stop valves, the flushing valves and the flushing pump are respectively connected to a controller through leads, the controller controls and reads parameters of the controller, when the flow detection device cannot detect the flow and the pressure value detected by the pressure detection device is below a set value, the controller sends a command to close the upstream stop valve and the downstream stop valve, open the upstream flushing valve and the flushing pump to keep the lime water in the pipeline flowing, when the flow detection device cannot detect the flow and the pressure value of the pressure detection device is above the set value, the controller sends out a command to open the upstream and downstream stop valves and close the upstream and downstream flushing valves and the flushing pump at the same time to keep the transmission pipeline unblocked, when the flow detection device detects the flow, the controller prohibits closing the stop valves and opening the flushing pump and the flushing motor at the same time, the flushing pipeline is a flexible foldable pipeline, the set value can be modified in the controller, and the value range of the set value is between 0.1 and 2 bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811512687.1A CN109550750B (en) | 2018-12-11 | 2018-12-11 | Method for cleaning lime water pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811512687.1A CN109550750B (en) | 2018-12-11 | 2018-12-11 | Method for cleaning lime water pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109550750A CN109550750A (en) | 2019-04-02 |
| CN109550750B true CN109550750B (en) | 2020-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811512687.1A Active CN109550750B (en) | 2018-12-11 | 2018-12-11 | Method for cleaning lime water pipeline |
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| Country | Link |
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| CN (1) | CN109550750B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112264402B (en) * | 2020-09-28 | 2023-11-28 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Anti-blocking device and method for regulating valve for intermittent delivery of liquid-solid two-phase fluid |
| CN113048407A (en) * | 2021-03-18 | 2021-06-29 | 中国商用飞机有限责任公司 | System for detecting and dredging blockage point of aircraft waste water pipeline and control method thereof |
| CN113245315A (en) * | 2021-04-08 | 2021-08-13 | 沈阳铝镁设计研究院有限公司 | Lime milk pipeline cleaning device and cleaning method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011117060A1 (en) * | 2011-10-27 | 2013-05-02 | Manfred Völker | rinsing |
| CN103148713B (en) * | 2013-02-22 | 2014-11-05 | 中国石油天然气股份有限公司 | Superheated steam and separated water mixing method for on-line descaling |
| CN203917302U (en) * | 2014-06-30 | 2014-11-05 | 中国水利水电第十三工程局有限公司 | A kind of hydraulic system pipeline cleaning device |
| CN104907296B (en) * | 2015-02-06 | 2018-01-05 | 吉林建筑大学 | A kind of half embedded type flexibility formula feedwater piping cleaning device and descaling method |
| CN204842382U (en) * | 2015-07-24 | 2015-12-09 | 金川集团股份有限公司 | Ore pulp pipeline protection device |
| CN107335663A (en) * | 2016-11-29 | 2017-11-10 | 哈尔滨工业大学 | A kind of pipeline Sorbet flusher and purging method |
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2018
- 2018-12-11 CN CN201811512687.1A patent/CN109550750B/en active Active
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| CN109550750A (en) | 2019-04-02 |
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