Wastewater diluting, precipitating and recycling device

Abstract

The utility model belongs to the technical field of wastewater treatment, and particularly discloses a wastewater diluting, precipitating and recycling device which comprises a buried tank, a wastewater pool and a boiler, a water inlet pipe is connected to the wastewater pool, one end, far away from the wastewater pool, of the water inlet pipe is connected with an inlet end of the buried tank, and a steam condensing pipe is fixedly connected to the boiler. The buried tank is internally provided with a first baffle and a second baffle, the outlet end of the buried tank is connected with a drainage pipe, the drainage pipe is connected with a diaphragm pump, and the end, away from the buried tank, of the drainage pipe is connected with the quenching water tank. The utility model aims to solve the problems of serious waste of water resources and environmental pollution caused by the fact that sewage cannot be recycled in the existing sewage treatment process of a deacidification tower and an alkaline washing tower. According to the utility model, the steam condensation pipe and the buried tank are arranged to dilute and precipitate the sewage of the alkaline washing tower and the deacidification tower, so that the sewage is purified, and the purified water is pumped and recycled through the diaphragm pump.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a wastewater dilution sedimentation recycling device. Background Art

[0002] In industrial waste treatment, the wet deacidification process has a good effect on the removal of flue gas pollutants, so it is used more frequently. The principle is: the flue gas after the furnace enters the wet deacidification tower after dust removal, and the flue gas reacts with the alkali solution to remove the flue gas pollutants. The purified flue gas enters the alkali washing tower through the pipeline. Under the action of the centrifugal fan, the flue gas rises in a countercurrent manner, passes through the packing layer, and contacts with the sprayed alkali solution, and an acid-base neutralization reaction occurs. The acidic waste gas is purified, and after passing through the top demisting layer and removing the water mist, the clean gas is discharged from the chimney through the fan. The water in the deacidification tower and the alkali washing tower is provided by the quenching water tank. The quenching water tank replenishes the deacidification tower, the alkali washing tower and the quenching tower with water through the wet deacidification water pump and the quenching spray pump. The deacidification rate of pollutants in the deacidification tower and the alkali washing tower is high, but wastewater will be produced, which is acidic water and high salt water. Utility Model Content

[0003] The utility model aims to provide a wastewater dilution sedimentation reuse device to solve the problem that the wastewater in the existing deacidification tower and alkali washing tower treatment process cannot be recycled, resulting in serious waste of water resources and pollution to the environment.

[0004] To achieve the above-mentioned purpose, the basic scheme provided by the utility model is: a wastewater dilution, sedimentation and reuse device, comprising an underground tank, a wastewater pool and a boiler, the wastewater pool is connected with an inlet pipe, the inlet pipe is provided with a water pump, the end of the inlet pipe away from the wastewater pool is connected to the inlet end of the underground tank, the boiler is fixedly connected with a steam condenser, the end of the steam condenser away from the boiler is connected with the inlet pipe, a first baffle and a second baffle are provided in the underground tank, the top of the first baffle is lower than the top inner wall of the underground tank, the height of the first baffle is higher than the height of the second baffle, the outlet end of the underground tank is connected with a drain pipe, the drain pipe extends to an end port in the underground tank lower than the height of the second baffle, a diaphragm pump is connected to the drain pipe, and the end of the drain pipe away from the underground tank is connected to a quenching water tank.

[0005] The working principle of the utility model is as follows: when it is necessary to recycle waste water, firstly, the water pump is turned on to extract waste water from the waste water pool and enter the inlet end of the underground tank through the water inlet pipe, and then the switch valve on the boiler is opened to condense the steam in the boiler into water and enter the inlet end of the underground tank through the steam condensing pipe. The steam condensing water dilutes the waste water. As the liquid level in the underground tank rises, the impurities in the waste water undergo a first natural precipitation. When the liquid level in the underground tank is higher than the highest position of the first baffle, the precipitated water flows from the highest position of the first baffle into between the first baffle and the second baffle. As the liquid level between the first baffle and the second baffle in the underground tank rises, the impurities in the waste water undergo a second natural precipitation. When the liquid level between the first baffle and the second baffle is higher than the highest position of the second baffle, the precipitated water flows from the highest point of the second baffle into the space directly below the outlet end of the underground tank for a third natural precipitation. When the liquid level of the precipitated water reaches the set height of the liquid level alarm, the liquid level alarm sounds an alarm, and the staff starts the diaphragm pump to extract the precipitated water and pump it into the quenching water tank for recycling.

[0006] When it is necessary to clean the sediment in the underground tank, first remove the water inlet pipe and the drainage pipe from the inlet and outlet ends of the underground tank, then open the covers on the inlet and outlet ends of the underground tank, and then the staff enters the underground tank through the outlet end of the underground tank, and then uses a shovel to clean the sediment in the space directly below the outlet end of the underground tank. Then the staff crosses the second baffle and cleans the sediment between the first baffle and the second baffle. After cleaning, go out of the underground tank through the ladder at the outlet end of the underground tank, and then enter the underground tank through the inlet end of the underground tank, and use a shovel to clean the sediment in the space on one side of the first baffle. After cleaning, go out of the underground tank through the ladder at the inlet end of the underground tank.

[0007] Beneficial effects: The wastewater from the alkali washing tower and the deacidification tower is diluted by setting a steam condenser to reduce the salt content in the wastewater. The diluted wastewater is precipitated by setting an underground tank to purify the wastewater. The purified water is then pumped by a diaphragm pump and pumped into a quenching water tank for recycling, thereby reducing workshop costs and saving water resources, achieving good results.

[0008] Option 2, which is the preferred option of the basic option, is that a handle is provided on the outer surface of the underground tank; the handle is provided on the underground tank to facilitate the transportation of the underground tank.

[0009] Option three is a preferred option of the basic option, in which the inner wall of the underground tank is coated with a polytetrafluoroethylene coating; the purpose of coating the inner wall of the underground tank with polytetrafluoroethylene is to prevent corrosion of the underground tank.

[0010] Option 4, which is the preferred option of the basic option, is provided with a filter screen at the top of the first baffle, and both sides of the filter screen are welded to the inner wall of the buried tank; the filter screen is provided on the first baffle to facilitate filtering of larger dirt.

[0011] Option 5 is a preferred option of the basic option. Ladders are provided at the inlet and outlet of the underground tank. Ladders are provided at the inlet and outlet of the underground tank to facilitate access for maintenance.

[0012] Option six, which is a preferred option of the basic option, a liquid level alarm is provided on the inner wall of the underground tank, and the height of the liquid level alarm is lower than the height of the second baffle; the liquid level alarm is provided on the underground tank to facilitate understanding of the purified water level. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional diagram of a wastewater dilution sedimentation recycling device of the utility model;

[0014] Figure 2 It is a front view of an underground tank in a wastewater dilution sedimentation recycling device of the utility model;

[0015] Figure 3 yes Figure 2 Sectional view at AA in the middle;

[0016] Figure 4 It is a right view of an underground tank in a wastewater dilution sedimentation recycling device of the utility model;

[0017] Figure 5 yes Figure 4 Cross-sectional view at the middle BB. DETAILED DESCRIPTION

[0018] The utility model is further described in detail below through specific implementation methods:

[0019] The figure marks in the drawings of the specification include: 1. underground tank; 11. first baffle; 12. second baffle; 13. drain pipe; 14. handle; 15. ladder; 16. liquid level alarm; 17. filter; 2. wastewater tank; 21. water inlet pipe; 22. water pump; 3. boiler; 31. steam condenser; 4. diaphragm pump; 5. quenching water tank.

[0020] like Figures 1 to 5As shown: a wastewater dilution sedimentation reuse device, including an underground tank 1, a wastewater pool 2 and a boiler 3, the outer surface of the underground tank 1 is fixedly connected with a handle 14, the inner wall of the underground tank 1 is coated with a polytetrafluoroethylene coating, the underground tank 1 is buried underground, the wastewater pool 2 is connected with an inlet pipe 21, the inlet pipe 21 is connected with a water pump 22, the end of the inlet pipe 21 away from the wastewater pool 2 is connected to the inlet end of the underground tank 1, the boiler 3 is fixedly connected with a steam condenser 31, the end of the steam condenser 31 away from the boiler 3 is connected with the inlet pipe 21, the underground tank 1 is welded with a first baffle 11 and a second baffle 12, the side and bottom of the first baffle 11 and the second baffle 12 are welded to the inner wall of the underground tank 1, the first baffle 11 and the second baffle 12 are welded to the inner wall of the underground tank 1, and the first The top of the baffle 11 is lower than the top inner wall of the buried tank 1, the height of the first baffle 11 is higher than the height of the second baffle 12, a filter screen 17 is fixedly connected to the first baffle 11, and both sides of the filter screen 17 are welded to the inner wall of the buried tank 1, the inlet and outlet ends of the buried tank 1 are fixedly connected with a ladder 15, the outlet end of the buried tank 1 is connected to a drain pipe 13, and the drain pipe 13 extends to one end of the buried tank 1 and is lower than the height of the second baffle 12. A diaphragm pump 4 is connected to the drain pipe 13, and one end of the drain pipe 13 away from the buried tank 1 is connected to the quenching water tank 5, and a liquid level alarm 16 is fixedly connected to the inner wall of the buried tank 1, and the height of the liquid level alarm 16 is lower than the height of the second baffle 12.

[0021] The implementation method of this embodiment is as follows: when it is necessary to recycle wastewater, first turn on the water pump 22 to allow the water pump 22 to extract wastewater from the wastewater pool 2 and enter the inlet end of the underground tank 1 through the water inlet pipe 21, then turn on the switch valve on the boiler 3 to allow the steam in the boiler to condense water and enter the inlet end of the underground tank 1 through the steam condensation pipe 31. The steam condensed water dilutes the wastewater. As the liquid level in the underground tank 1 rises, the impurities in the wastewater are naturally precipitated for the first time. When the water level in the underground tank 1 is higher than the highest position of the first baffle 11, the precipitated water flows from the filter screen 17 into the first baffle 11 and Between the second baffle 12, as the liquid level between the first baffle 11 and the second baffle 12 in the buried tank 1 rises, the impurities in the wastewater undergo a second natural sedimentation. When the liquid level between the first baffle 11 and the second baffle 12 is higher than the highest level of the second baffle 12, the precipitated water flows from the highest point of the second baffle 12 into the space just below the outlet end of the buried tank 1 for a third natural sedimentation. When the liquid level of the precipitated water reaches the set height of the liquid level alarm 16, the liquid level alarm 16 sounds an alarm, and the staff starts the diaphragm pump 4 to extract the precipitated water and pump it into the quenching water tank 5 for recycling.

[0022] When it is necessary to clean the sediment in the underground tank 1, first remove the water inlet pipe 21 and the drain pipe 13 from the inlet and outlet ends of the underground tank 1, then open the covers on the inlet and outlet ends of the underground tank 1, and then the staff enters the underground tank 1 through the ladder 15 at the outlet end of the underground tank 1, and then uses a shovel to clean the sediment in the space directly below the outlet end of the underground tank 1. Then the staff crosses the second baffle 12 to clean the sediment between the first baffle 11 and the second baffle 12. After cleaning, go out of the underground tank 1 through the ladder 15 at the outlet end of the underground tank 1, and then enter the underground tank 1 through the ladder 15 at the inlet end of the underground tank 1, and use a shovel to clean the sediment in the space on one side of the first baffle 11. After cleaning, go out of the underground tank 1 through the ladder 15 at the inlet end of the underground tank 1.

[0023] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A wastewater dilution sedimentation reuse device, characterized in that: The invention comprises an underground tank (1), a wastewater pool (2) and a boiler (3), wherein the wastewater pool (2) is connected to a water inlet pipe (21), the water inlet pipe (21) is provided with a water pump (22), the end of the water inlet pipe (21) away from the wastewater pool (2) is connected to the inlet end of the underground tank (1), the boiler (3) is fixedly connected to a steam condenser pipe (31), the end of the steam condenser pipe (31) away from the boiler (3) is in communication with the water inlet pipe (21), and the underground tank (1) is provided with a first baffle (11) and a second baffle (12). The first baffle (12) has a top end lower than the top inner wall of the underground tank (1), the first baffle (11) has a height higher than the second baffle (12), the outlet end of the underground tank (1) is connected to a drainage pipe (13), one end of the drainage pipe (13) extending to the inside of the underground tank (1) is lower than the height of the second baffle (12), a diaphragm pump (4) is connected to the drainage pipe (13), and one end of the drainage pipe (13) away from the underground tank (1) is connected to a quenching water tank (5).

2. A wastewater dilution sedimentation reuse device according to claim 1, characterized in that The outer surface of the underground tank (1) is provided with a handle (14).

3. A wastewater dilution sedimentation reuse device according to claim 1, characterized in that: The inner wall of the buried tank (1) is coated with a polytetrafluoroethylene coating.

4. A wastewater dilution sedimentation reuse device according to claim 1, characterized in that: A filter screen (17) is provided at the top end of the first baffle (11), and both sides of the filter screen (17) are welded to the inner wall of the underground tank (1).

5. A wastewater dilution sedimentation reuse device according to claim 1, characterized in that: Ladders (15) are provided at the inlet and outlet ends of the buried tank (1).

6. A wastewater dilution sedimentation reuse device according to claim 1, characterized in that: A liquid level alarm (16) is provided on the inner wall of the underground tank (1), and the height of the liquid level alarm (16) is lower than the height of the second baffle (12).

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