Sewage discharging and cleaning device for gas-liquid separation tank

Abstract

The utility model belongs to the technical field of flue gas acid making, and particularly discloses a gas-liquid separation tank blowdown cleaning device, which is characterized in that a manhole communicated with the outside is additionally arranged at the bottom of a gas-liquid separation tank, the actual liquid level in the gas-liquid separation tank is measured in real time through a liquid level meter arranged at the observation hole, and when the actual liquid level in the gas-liquid separation tank is close to a safety value, the gas-liquid separation tank is cleaned. The programmable controller instructs the alarm to start to remind related workers to take corresponding measures and open the blow-off channel, accumulated liquid and dust in the gas-liquid separation tank are guided out through the blow-off pipeline and enter the collection pool through the bearing hopper to be settled, and after settling is completed, sludge on the lower layer is guided out from the blow-off port of the collection pool to enter the sludge-water separator to achieve separation of sludge and water. The mud is recycled after being collected, and the cleaning work of the gas-liquid separation tank is completed without stopping, so that the normal work of the gas-liquid separation device is ensured, the production efficiency is improved, and great convenience is brought to the stable operation of an acid making system.

Description

Technical Field

[0001] The utility model belongs to the technical field of flue gas acid production, and specifically discloses a gas-liquid separation tank sewage cleaning device. Background Art

[0002] At present, the venturi device for dust removal and cooling of flue gas in the acid production process is equipped with a gas-liquid separation device. After long-term operation, dust often blocks the water outlet of the gas-liquid separation device, affecting the dust removal effect. In severe cases, it will cause an imbalance between the supply and return water volumes, and eventually cause the gas-liquid separation tank to overflow. Production can only be stopped and manual cleaning is required, which not only increases the labor intensity of the operators, is time-consuming and labor-intensive, but also poses a safety hazard when personnel enter the confined space. It also affects the production progress and reduces production efficiency. Summary of the invention

[0003] In order to solve the problems in the background technology, the utility model discloses a gas-liquid separation tank sewage discharge and cleaning device, a manhole connected to the outside is added at the bottom of the gas-liquid separation tank, the accumulated liquid and dust discharged through the manhole enter the collection pool through the receiving hopper, the gas-liquid separation tank can be cleaned without stopping the vehicle, thereby improving production efficiency.

[0004] In order to achieve the above-mentioned invention object, the utility model adopts the following technical solutions:

[0005] A gas-liquid separation tank sewage cleaning device, the gas-liquid separation tank is connected to the air inlet pipe and the air outlet pipe respectively through the air inlet and the air outlet arranged at intervals on the top of the gas-liquid separation tank, the gas-liquid separation tank is connected to the return pipe through the return port arranged at the bottom, an observation hole is also arranged on the top of the gas-liquid separation tank, the liquid level in the gas-liquid separation tank can be observed through the observation hole, a manhole is arranged at the bottom of the gas-liquid separation tank, the gas-liquid separation tank is connected to the outside through the sewage pipe arranged at the manhole, and a valve for opening and closing the sewage channel is arranged on the sewage pipe.

[0006] Furthermore, the gas-liquid separation tank sewage cleaning device is provided with a hopper below the discharge end of the sewage pipe, a collecting pool is provided below the hopper, a water outlet is provided at the upper part of the collecting pool, and a sewage outlet is provided at the lower part of the collecting pool.

[0007] Furthermore, the gas-liquid separation tank sewage cleaning device is provided with a mud-water separator at the sewage outlet of the collecting tank, and the sewage outlet of the collecting tank is connected to the feed end of the mud-water separator through a pipeline.

[0008] Furthermore, the gas-liquid separation tank sewage cleaning device is provided with a liquid level meter at a position adjacent to the observation hole at the top of the gas-liquid separation tank, and the liquid level meter is electrically connected to the input end of a programmable controller arranged outside the gas-liquid separation tank, and the output end of the programmable controller is connected to an alarm arranged at the gas-liquid separation tank site and / or in a monitoring room.

[0009] Furthermore, in the gas-liquid separation tank sewage cleaning device, the height of the manhole is lower than the height of the water return port.

[0010] Furthermore, in the gas-liquid separation tank sewage cleaning device, the upper end of the hopper is a square cylinder with a necked setting, the lower end of the hopper is a cylinder, and the necked end of the square cylinder smoothly transitions to the cylinder.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model discloses a gas-liquid separation tank sewage cleaning device, an observation hole is also arranged on the top of the gas-liquid separation tank, and a manhole connected with the outside is added at the bottom of the gas-liquid separation tank, and the actual liquid level in the gas-liquid separation tank is measured in real time by a liquid level gauge arranged at the observation hole. When the actual liquid level in the gas-liquid separation tank approaches a safe value, a programmable controller instructs an alarm to start, reminding relevant staff to take corresponding measures, open a sewage discharge channel, and the accumulated liquid and dust in the gas-liquid separation tank are discharged through a sewage discharge pipe, so that the accumulated liquid and dust in the gas-liquid separation tank are cleaned, and the cleaning work is completed without stopping the vehicle, and impurities such as dust in the gas-liquid separation tank are discharged, thereby ensuring the normal operation of the gas-liquid separation device, improving production efficiency, and bringing great convenience to the stable operation of the acid-making system. After the accumulated liquid and dust in the gas-liquid separation tank are discharged through the sewage discharge pipe, they enter the collecting tank through the receiving hopper for sedimentation. After the sedimentation is completed, the lower layer of sludge is discharged from the sewage discharge port of the collecting tank into a mud-water separator to separate the mud and water. The mud is collected and recycled, so as to avoid the accumulation of a large amount of sludge, and save space and safety maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model gas-liquid separation tank sewage cleaning device;

[0014] In the above figure: 1-gas-liquid separation tank; 2-air inlet; 3-air outlet; 4-observation hole; 5-liquid level meter; 6-return water pipe; 7-manhole; 8-hopper; 9-collecting tank; 10-mud-water separator. DETAILED DESCRIPTION

[0015] In order to better understand the present invention, the content of the present invention is further explained below in conjunction with embodiments, but the content of the present invention is not limited to the following embodiments.

[0016] Combined with Figure 1The utility model is a gas-liquid separation tank sewage cleaning device, wherein the gas-liquid separation tank 1 is connected to the gas inlet pipe and the gas outlet pipe respectively through the gas inlet 2 and the gas outlet 3 arranged at intervals on the top thereof, and the gas-liquid separation tank 1 is connected to the return water pipe 6 through the return water port arranged at the lower part thereof, and an observation hole 4 is also arranged on the top of the gas-liquid separation tank 1, through which the liquid level in the gas-liquid separation can be observed, and a manhole 7 is arranged at the bottom of the gas-liquid separation tank 1, and the gas-liquid separation tank 1 is connected to the outside world through the sewage pipe arranged at the manhole 7, and the sewage pipe arranged at the manhole 7 is connected to the outside world through the sewage pipe arranged at the manhole 7. A valve for opening and closing the sewage discharge channel is provided on the sewage pipe. During operation, the liquid level in the gas-liquid separation tank 1 is observed through the observation hole 4. When the liquid level in the gas-liquid separation tank 1 approaches the safety value, the sewage discharge channel is opened, and the accumulated liquid and dust in the gas-liquid separation tank 1 are discharged through the sewage discharge pipe, thereby realizing the cleaning of the accumulated liquid and dust in the gas-liquid separation tank 1. The cleaning work of the gas-liquid separation tank 1 can be completed without stopping the vehicle, thereby discharging impurities such as dust in the gas-liquid separation tank 1, thereby ensuring the normal operation of the gas-liquid separation device, and bringing great convenience to the stable operation of the acid-making system.

[0017] As an optional design, the gas-liquid separation tank sewage cleaning device is preferably provided with a hopper 8 below the discharge end of the sewage pipe, a collecting tank 9 is provided below the hopper 8, a water outlet is provided at the upper part of the collecting tank 9, and a sewage outlet is provided at the lower part of the collecting tank 9. The accumulated liquid and dust in the gas-liquid separation tank 1 are discharged through the sewage pipe and then enter the collecting tank 9 through the hopper 8 for sedimentation. After sedimentation is completed, the upper layer of liquid is discharged from the water outlet, and the lower layer of sludge is discharged from the sewage outlet for collection.

[0018] As an optional design, the gas-liquid separation tank sewage cleaning device is preferably provided with a mud-water separator 10 at the sewage outlet of the collecting tank 9, and the sewage outlet of the collecting tank 9 is connected to the feed end of the mud-water separator 10 through a pipeline, and the sludge is discharged from the sewage outlet of the collecting tank 9 into the mud-water separator 10 to separate the mud and water, and the mud is collected and recycled. Here, it should be noted that the mud-water separator 10 is a prior art, so its structure is not described in detail here.

[0019] As an optional design, the gas-liquid separation tank sewage cleaning device is preferably provided with a liquid level meter 5 at a position near the observation hole 4 on the top of the gas-liquid separation tank 1, and the liquid level meter 5 is electrically connected to the input end of a programmable controller (not shown in the figure) arranged outside the gas-liquid separation tank 1, and the output end of the programmable controller is connected to an alarm arranged on site and / or in a monitoring room of the gas-liquid separation tank 1. When working, the interval value of the liquid level in the gas-liquid separation tank 1 is first input into the programmable controller. When the actual liquid level in the gas-liquid separation tank 1 is close to the end value of the interval value, the programmable controller instructs the alarm to start, reminding relevant staff to take corresponding measures.

[0020] As an optional design, the gas-liquid separation tank sewage cleaning device is preferably configured such that the height of the manhole 7 is lower than the height of the water return port.

[0021] As an optional design, the gas-liquid separation tank sewage cleaning device is preferably used, wherein the upper end of the hopper 8 is a square cylinder with a necked-down design, and the lower end of the hopper 8 is a cylinder, and the necked end of the square cylinder smoothly transitions to the cylinder.

[0022] The working process of the utility model is as follows:

[0023] During operation, the actual liquid level in the gas-liquid separation tank 1 is measured in real time by the liquid level meter 5. When the actual liquid level in the gas-liquid separation tank 1 approaches the safe value, the programmable controller instructs the alarm to start, reminding the relevant staff to take corresponding measures, open the sewage discharge channel, and the accumulated liquid and dust in the gas-liquid separation tank 1 are discharged through the sewage discharge pipe, so as to realize the cleaning of the accumulated liquid and dust in the gas-liquid separation tank 1. The cleaning work of the gas-liquid separation tank 1 can be completed without stopping the vehicle, and the dust and other impurities in the gas-liquid separation tank 1 can be discharged, thereby ensuring the normal operation of the gas-liquid separation device, improving production efficiency, and bringing great convenience to the stable operation of the acid-making system. After the accumulated liquid and dust in the gas-liquid separation tank 1 are discharged through the sewage discharge pipe, they enter the collecting tank 9 through the receiving hopper 8 for sedimentation. After the sedimentation is completed, the lower layer of sludge is discharged from the sewage outlet of the collecting tank 9 into the mud-water separator 10 to separate the mud and water. The mud is collected and recycled, so as to avoid the accumulation of large amounts of sludge and save space and safety maintenance costs.

[0024] The above description is only an application implementation method of the present utility model, but the protection scope of the present utility model is not limited to this, and the right scope of the present utility model cannot be limited by this. Any equivalent changes made according to the technical solution of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A gas-liquid separation tank sewage cleaning device, wherein the gas-liquid separation tank is connected to the gas inlet pipe and the gas outlet pipe respectively through the gas inlet and the gas outlet arranged at intervals on the top of the gas-liquid separation tank, and the gas-liquid separation tank is connected to the return water pipe through the return water port arranged at the bottom of the gas-liquid separation tank, characterized in that: An observation hole is also provided at the top of the gas-liquid separation tank, through which the liquid level in the gas-liquid separation tank can be observed. A manhole is provided at the bottom of the gas-liquid separation tank. The gas-liquid separation tank is connected to the outside world through a sewage pipe provided at the manhole, and a valve for opening and closing the sewage channel is provided on the sewage pipe.

2. The gas-liquid separation tank sewage cleaning device according to claim 1 is characterized in that: A receiving hopper is arranged below the discharge end of the sewage pipe, a collecting pool is arranged below the receiving hopper, a water outlet is arranged at the upper part of the collecting pool, and a sewage outlet is arranged at the lower part of the collecting pool.

3. The gas-liquid separation tank sewage cleaning device according to claim 2 is characterized in that: A mud-water separator is arranged at the sewage outlet of the collection tank, and the sewage outlet of the collection tank is connected with the feed end of the mud-water separator through a pipeline.

4. The gas-liquid separation tank sewage cleaning device according to claim 3 is characterized in that: A liquid level meter is arranged near the observation hole at the top of the gas-liquid separation tank. The liquid level meter is electrically connected to the input end of a programmable controller arranged outside the gas-liquid separation tank, and the output end of the programmable controller is connected to an alarm arranged at the gas-liquid separation tank site and / or in the monitoring room.

5. The gas-liquid separation tank sewage cleaning device according to claim 3 is characterized in that: The height of the manhole is lower than the height of the return outlet.

6. The gas-liquid separation tank sewage cleaning device according to claim 3 is characterized by: The upper end of the receiving hopper is a square cylinder with a necked setting, and the lower end of the receiving hopper is a cylinder. The necked end of the square cylinder is smoothly transitioned to the cylinder.

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