CN210356835U

CN210356835U - Slurry tank capable of preventing overflow

Info

Publication number: CN210356835U
Application number: CN201920952772.3U
Authority: CN
Inventors: 李波; 孙军; 王冰
Original assignee: Huadian Weifang Power Generation Co Ltd
Current assignee: Huadian Weifang Power Generation Co Ltd
Priority date: 2019-06-24
Filing date: 2019-06-24
Publication date: 2020-04-21
Anticipated expiration: 2029-06-24

Abstract

The utility model discloses a prevent thick liquid case of overflow, including the limestone slurry case, the top of limestone slurry case is installed into thick liquid pipe, first agitator, first level gauge, first moisturizing flushing pipe, the upper end of limestone slurry case links to each other with the top of buffering thick liquid case through the intercommunication pipeline, the intercommunication pipeline is equipped with the flowmeter, the top of buffering thick liquid case still is equipped with second agitator, second level gauge, second moisturizing flushing pipe, the upper end of buffering thick liquid case is equipped with the overflow pipe, the end of overflow pipe communicates to first trench; the bottom of the buffer slurry tank is communicated with the limestone slurry tank through a water return pipe and is provided with a return pipe valve; the utility model has the advantages that: the on-line dredging device can realize the on-line dredging of the blockage of the pressure sampling device, can ensure the normal and stable operation of the system, can effectively improve the working efficiency, and has great significance for the stable, economic and safe operation of a sewage system.

Description

Slurry tank capable of preventing overflow

Technical Field

The utility model relates to a thick liquid case, specifically speaking are prevent thick liquid case of overflow belongs to thick liquid case field.

Background

On-site limestone-gypsum wet desulphurization, a plurality of slurry tanks exist, such as an accident slurry tank, a limestone powder slurry tank and an absorption tower. The limestone slurry tank is used for storing prepared limestone slurry, a stirrer is additionally arranged in the limestone slurry tank to prevent the slurry from precipitating, a liquid level meter (generally an ultrasonic wave and radar wave non-contact liquid level meter) is arranged at the top of the limestone slurry tank and used for monitoring the liquid level in the slurry tank, a slurry inlet pipeline and a water replenishing flushing water pipe are arranged at the top of the limestone slurry tank, and a slurry discharge pipe is arranged at the lower part of the limestone slurry and used for discharging the slurry to a user. Due to the influences of the temperature and the density of the slurry in the slurry tank, and the fluctuation of the liquid level in the slurry tank caused by the water inflow of the stirrer, the slurry inlet pipe and the water replenishing flushing water pipe, the monitoring liquid level abnormality of the liquid level meter is caused, the overflow of the limestone slurry tank is caused, and the ground is polluted.

Disclosure of Invention

Aiming at the problem that the existing limestone slurry tank is abnormal in liquid level monitoring and is easy to cause overflow of the limestone slurry tank, the utility model designs a slurry tank for preventing overflow, which has simple structure and convenient use; the overflow phenomenon of the limestone slurry tank is reduced, and the stability and the economical efficiency of the unit are improved. A series of innovative transformation is carried out on the overflow problem of the current stone slurry tank, the investment is low, the safety is good, the economy is remarkable, and the method can be widely applied. The method has the characteristics of simplicity, effectiveness, easy popularization and remarkable energy-saving effect.

The technical scheme of the utility model is that:

a slurry tank capable of preventing overflow comprises a limestone slurry tank, wherein a slurry inlet pipe, a first stirrer, a first liquid level meter and a first water supplementing flushing pipe are mounted at the top of the limestone slurry tank, the upper end of the limestone slurry tank is connected with the top of a buffered slurry tank through a communicating pipeline, the communicating pipeline is provided with a flow meter and used for monitoring whether overflow occurs or not, the top of the buffered slurry tank is also provided with a second stirrer, a second liquid level meter and a second water supplementing flushing pipe, an overflow pipe is arranged at the upper end of the buffered slurry tank and used for preventing the slurry tank from being damaged by system abnormity, and the tail end of the overflow pipe is communicated with a first trench and used for emptying slurry in the slurry tank during equipment maintenance; the bottom of the buffer slurry tank is communicated with the limestone slurry tank through a water return pipe, and is provided with a return pipe valve. The bottom of the buffer slurry tank is provided with a reflux pipe valve. And the staff adjusts the liquid level of the limestone slurry tank to reach the height below the return pipe valve, opens the return pipe valve and discharges the slurry in the buffer slurry tank into the limestone slurry tank. The top of the buffer slurry tank can be flushed by flushing water. When the buffer slurry tank overflows, the overflow pipe at the top of the buffer slurry tank discharges slurry to the trench.

And a second sewage discharge pipe is arranged at the bottom of the limestone slurry tank, and the tail end of the second sewage discharge pipe is communicated to a second trench. The slurry in the slurry tank is emptied when the equipment is overhauled.

And a slurry discharge pipe is arranged at the bottom of the limestone slurry tank.

Through install buffering thick liquid case additional on original limestone slurry case basis, prevent that the thick liquid case from taking place the overflow. When keeping original thick liquid case agitator normal operating, install flowmeter, buffering thick liquid case additional in limestone thick liquid case overflow pipe department. When the limestone slurry tank overflows, the flow meter monitors the flow and sends out an alarm signal, and the staff timely adjusts the system (increase the slurry used and reduce the slurry feeding). Preventing the slurry from overflowing.

The output ends of the first liquid level meter and the second liquid level meter are respectively connected with the input end of the controller, and the output end of the controller is respectively connected with the first stirrer and the second stirrer in a control mode. When the liquid level in the buffer slurry tank is monitored to reach a certain height, a second stirrer of the buffer slurry tank is started to prevent slurry in the buffer slurry tank from silting up.

The utility model has the advantages that: the structure is simple and the use is convenient; the overflow phenomenon of the limestone slurry tank is reduced, and the stability and the economical efficiency of the unit are improved. A series of innovative transformation is carried out on the overflow problem of the current stone slurry tank, the investment is low, the safety is good, the economy is remarkable, and the method can be widely applied. The method has the characteristics of simplicity, effectiveness, easy popularization and remarkable energy-saving effect.

The present invention will be further explained with reference to the drawings and examples.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

in the figure: 1. the system comprises a slurry inlet pipe, 2, a first stirrer, 3, a first liquid level meter, 4, a first water replenishing flushing pipe, 5, a flow meter, 6, a second stirrer, 2, 7, a second liquid level meter, 8, a second water replenishing flushing pipe, 9, an overflow pipe, 10, a first drain pipe, 11, a buffer slurry tank, 12, a return pipe valve, 13, a limestone slurry tank, 14, a second drain pipe, 15, a first trench, 16, a second trench and 17, a slurry discharge pipe.

Detailed Description

The following description of the preferred embodiments of the present invention is provided for the purpose of illustration and description, and is not intended to limit the invention.

Example 1

As shown in fig. 1, a slurry tank for preventing overflow comprises a limestone slurry tank 13, wherein a slurry inlet pipe 1, a first stirrer 2, a first liquid level meter 3 and a first water replenishing flushing pipe 4 are installed at the top of the limestone slurry tank 13, the upper end of the limestone slurry tank is connected with the top of a buffer slurry tank 11 through a communication pipeline, the communication pipeline is provided with a flowmeter 5 for monitoring whether overflow occurs, the top of the buffer slurry tank 11 is also provided with a second stirrer 6, a second liquid level meter 7 and a second water replenishing flushing pipe 8, the upper end of the buffer slurry tank 11 is provided with an overflow pipe 9 for preventing the slurry tank from being damaged by system abnormity, and the tail end of the overflow pipe 9 is communicated with a first trench 15 for emptying slurry in the slurry tank during equipment maintenance; the bottom of the buffer slurry tank 11 is communicated with the limestone slurry tank through a water return pipe, and is provided with a return pipe valve 12. The bottom of the buffer slurry tank is provided with a reflux pipe valve. And the staff adjusts the liquid level of the limestone slurry tank to reach the height below the return pipe valve, opens the return pipe valve and discharges the slurry in the buffer slurry tank into the limestone slurry tank. The top of the buffer slurry tank can be flushed by flushing water. When the buffer slurry tank overflows, the overflow pipe at the top of the buffer slurry tank discharges slurry to the trench.

A second sewage discharge pipe 14 is arranged at the bottom of the limestone slurry tank 13, and the tail end of the second sewage discharge pipe 14 is communicated to a second trench 16. The slurry in the slurry tank is emptied when the equipment is overhauled.

And a slurry discharge pipe 17 is arranged at the bottom of the limestone slurry tank 13.

Through install buffering thick liquid case additional on original limestone slurry case basis, prevent that the thick liquid case from taking place the overflow. When keeping original thick liquid case agitator normal operating, install flowmeter, buffering thick liquid case additional in limestone thick liquid case overflow pipe department. When the limestone slurry tank overflows, the flow meter monitors the flow and sends out an alarm signal, and the staff timely adjusts the system, such as increasing the slurry for use and reducing the slurry inlet. Preventing the slurry from overflowing.

Claims

1. The utility model provides a prevent thick liquid case of overflow which characterized in that: the system comprises a limestone slurry tank, wherein a slurry inlet pipe, a first stirrer, a first liquid level meter and a first water replenishing flushing pipe are mounted at the top of the limestone slurry tank, the upper end of the limestone slurry tank is connected with the top of a buffered slurry tank through a communicating pipeline, the communicating pipeline is provided with a flowmeter, the top of the buffered slurry tank is also provided with a second stirrer, a second liquid level meter and a second water replenishing flushing pipe, the upper end of the buffered slurry tank is provided with an overflow pipe, and the tail end of the overflow pipe is communicated with a first trench; the bottom of the buffer slurry tank is communicated with the limestone slurry tank through a water return pipe, and is provided with a return pipe valve.

2. The slurry tank of claim 1, wherein the overflow prevention means comprises: and a second sewage discharge pipe is arranged at the bottom of the limestone slurry tank, and the tail end of the second sewage discharge pipe is communicated to a second trench.

3. The slurry tank of claim 1, wherein the overflow prevention means comprises: and a slurry discharge pipe is arranged at the bottom of the limestone slurry tank.

4. The slurry tank of claim 1, wherein the overflow prevention means comprises: the output ends of the first liquid level meter and the second liquid level meter are respectively connected with the input end of the controller, and the output end of the controller is respectively connected with the first stirrer and the second stirrer in a control mode.