Concentrated self-circulation system for conveying slurry by pipeline and control method thereof
A technology of pipeline transportation and circulation system, applied in pipeline system, gas/liquid distribution and storage, mechanical equipment, etc., can solve problems such as inconvenience of operation, and achieve the effect of convenient operation and manpower saving
Inactive Publication Date: 2012-02-08
YUNNAN DAHONGSHAN PIPELINE
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Problems solved by technology
In the prior art, the operator needs to go to the site to check the slurry concentration. If the slurry concentration meets the requirements, close the circulation valve and open the inlet valve of the storage mixing tank to allow the concentrated slurry to enter the storage mixing tank. If the slurry concentration does not meet the requirements Conditions, open the circulation valve for re-concentration, close the inlet valve of the storage mixing tank until the slurry concentration meets the conditions, the aforementioned operations need to be manually operated, especially when closing or opening the inlet valve of the storage mixing tank, it is necessary to climb to a height of more than ten meters storage mixing tank, very inconvenient to operate
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[0011] Such as figure 1 As shown, the bottom of the slurry thickening tank 6 is connected to the inlet of the underflow pump 1, the outlet of the underflow pump is connected to the main pipeline, and the main pipeline is connected to two branch pipelines. The first branch pipeline is connected to the inlet of the slurry thickening tank 6 and the second The branch pipeline is connected to the storage stirring tank 5, and the slurry concentration meter 2 is provided on the main pipeline, which is the prior art. A first solenoid valve 4 is provided on the first branch pipeline, and a second solenoid valve 3 is provided on the second branch pipeline; figure 2 As shown, the signal output terminal of the slurry concentration meter 2 is connected to the control unit 7, which can control the on and off of the first solenoid valve 4 and the second solenoid valve 3. During implementation, the control unit 7 may be a single-chip microcomputer.
[0012] The slurry concentration meter 2 mea...
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The invention relates to a concentrated self-circulation system for conveying slurry by a pipeline and a control method thereof. The concentrated self-circulation system comprises a slurry concentrated tank, an underflow pump and a storage stirring tank. The bottom of the slurry concentrated tank is connected with an inlet of the underflow pump. An outlet of the underflow pump is connected with a trunk pipeline. The trunk pipeline is connected with two branch pipelines, wherein a first branch pipeline is connected with an inlet of the slurry concentrated tank; a second branch pipeline is connected with the storage stirring tank; the trunk pipeline is provided with a slurry concentration meter; the first branch pipeline is provided with a first electromagnetic valve; the second branch pipeline is provided with a second electromagnetic valve; the concentration of slurry in the trunk pipeline is measured by the slurry concentration meter; when the concentration of the slurry is greater than or equal to a set threshold value of the concentration of the slurry, the first electromagnetic valve is closed and the second electromagnetic valve is opened through a control unit; and when the concentration of the slurry is less than the set threshold value of the concentration of the slurry, the first electromagnetic valve is opened and the second electromagnetic valve is closed through the control unit.
Description
Technical field [0001] The invention relates to a concentrated self-circulation system for conveying slurry in a pipeline and a control method thereof. Background technique [0002] When the slurry is transported in a long-distance pipeline, the slurry needs to be concentrated. In the prior art, the operator needs to go to the site to check the slurry concentration. If the slurry concentration meets the conditions, close the circulation valve and open the inlet valve of the storage mixing tank to allow the concentrated slurry to enter the storage mixing tank. If the slurry concentration does not meet the requirements Conditions, open the circulation valve for re-concentration, close the inlet valve of the storage mixing tank until the slurry concentration meets the conditions, the aforementioned operations require manual operation, especially when closing or opening the inlet valve of the storage mixing tank, it must climb to a height of more than ten meters The storage mixing t...
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Inventor 普光跃安建潘春雷周传奇李金航王健陈庚太江林拔海波
Owner YUNNAN DAHONGSHAN PIPELINE