CN212334655U

CN212334655U - System for treating sewage

Info

Publication number: CN212334655U
Application number: CN202020493768.8U
Authority: CN
Inventors: 汤文法; 胡庆民; 黎轩
Original assignee: Xiamen Jialu Metal Industrial Co ltd; Xiamen Tungsten Co Ltd
Current assignee: Xiamen Jialu Metal Industrial Co ltd; Xiamen Tungsten Co Ltd
Priority date: 2020-04-07
Filing date: 2020-04-07
Publication date: 2021-01-12
Anticipated expiration: 2030-04-07

Abstract

The utility model discloses a sewage treatment system, which comprises a ferric chloride storage tank, a sewage tank and a controller, wherein the sewage tank is arranged below the ferric chloride storage tank in the height direction, the ferric chloride storage tank is connected with the sewage tank through a pipeline, and a regulating valve and a flowmeter are arranged on the pipeline along the flowing direction of fluid in the pipeline; the controller is respectively connected with the flowmeter and the regulating valve, and the controller adjusts the opening degree of the regulating valve based on the display of the flowmeter. The system adopts high-level stored ferric chloride liquid, namely, liquid level differential pressure is used for replacing the water pressure output by a pump, and the opening of the regulating valve is regulated by the controller based on the display of the flow meter, so that the requirement of stable low flow of ferric hydroxide precipitation in the sewage treatment process is met, and the expenses of purchasing, operating, maintaining and repairing pump equipment are saved; meanwhile, the system has simple structure and convenient use, can be widely applied to the field of sewage treatment, and has remarkable environmental benefit and economic benefit.

Description

System for treating sewage

Technical Field

The utility model belongs to the sewage treatment field particularly, the utility model relates to a system for handle sewage.

Background

In the sewage treatment process, ferric hydroxide sediment formed by hydrolysis of iron ions in ferric chloride can be adopted, and the adsorption effect of the ferric hydroxide sediment is utilized to remove impurities and toxic substances in the sewage. However, the addition of the ferric chloride additive needs to be supplemented by a pump so as to enter a sewage tank for impurity removal, but the process requires extremely low addition flow, and the flow control of a pump of a common type is unstable.

For this reason, the existing equipment for delivering the iron chloride suspension liquid needs to be further improved.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, an object of the present invention is to provide a system for treating sewage, which employs a high-level stored ferric chloride liquid, i.e. uses a liquid level pressure difference to replace the pump output water pressure, and adjusts the opening of the regulating valve based on the indication displayed by the flow meter by means of the controller, thereby satisfying the requirement of stable low flow rate of ferric hydroxide precipitation in the sewage treatment process, and saving the cost of purchasing, operating, maintaining and repairing the pump equipment; meanwhile, the system has simple structure and convenient use, can be widely applied to the field of sewage treatment, and has remarkable environmental benefit and economic benefit.

In one aspect of the present invention, the utility model provides a system for treating sewage. According to the utility model discloses an embodiment, this system of handling sewage includes:

a ferric chloride storage tank;

the sewage tank is arranged below the ferric chloride storage tank in the height direction, the ferric chloride storage tank is connected with the sewage tank through a pipeline, and a regulating valve and a flow meter are arranged on the pipeline along the flowing direction of fluid in the pipeline;

and the controller is respectively connected with the flowmeter and the regulating valve, and the controller adjusts the opening degree of the regulating valve based on the display of the flowmeter.

According to the utility model discloses system for handle sewage, through setting up the ferric chloride storage tank, and on the direction of height, establish the below at the ferric chloride storage tank with the effluent water sump, the poor advantage of potential energy of make full use of ferric chloride liquid, carry the ferric chloride liquid in the ferric chloride storage tank to the effluent water sump, and the ferric chloride storage tank passes through the pipeline and links to each other with the effluent water sump, be equipped with governing valve and the flowmeter that links to each other with the controller on the pipeline, thereby this controller realizes the accurate and stable low flow control of the flow of the ferric hydroxide deposit in the pipeline with the aperture of adjustment governing valve based on the demonstration of flowmeter. Therefore, the system stores the ferric chloride liquid at a high position, namely, the liquid level differential pressure is used for replacing the water pressure output by the pump, and the opening of the regulating valve is regulated by the controller based on the indication number displayed by the flowmeter, so that the requirement of stable low flow of ferric hydroxide precipitation in the sewage treatment process is met, and the expenses of purchasing, running, maintaining and repairing pump equipment are saved; meanwhile, the system has simple structure and convenient use, can be widely applied to the field of sewage treatment, and has remarkable environmental benefit and economic benefit.

In addition, the system for treating sewage according to the above embodiment of the present invention may further have the following additional technical features:

preferably, the height difference between the ferric chloride storage tank and the sewage tank is not less than 0.5 m. Therefore, at the height, ferric hydroxide precipitate obtained in the ferric chloride storage tank can provide liquid level pressure difference by using the height under the condition of no pump conveying pressure, and meanwhile, the opening degree of the regulating valve is adjusted by matching with the controller based on the display of the flow meter so as to realize stable low-flow addition of the ferric hydroxide in the ferric chloride storage tank.

Preferably, the above system for treating sewage further comprises: and the air pressure pipeline extends to the position below the liquid level in the ferric chloride storage tank. Therefore, the air pressure pipeline is used for introducing the air pressure gas into the ferric chloride liquid in the ferric chloride storage tank, and the discharge of the air pressure gas is utilized to drive the feed liquid, so that the feed liquid components are uniformly distributed, and the process requirements can be met while stirring is replaced.

Preferably, the above system for treating sewage further comprises: and the ferric chloride conveying pipeline extends to the position below the liquid level in the ferric chloride storage tank, and the outlet of the ferric chloride conveying pipeline is arranged below the outlet of the air pressure pipeline in the height direction. Therefore, the continuous operation of the sewage treatment process can be ensured.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of a system for treating wastewater according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a system for treating sewage according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In one aspect of the present invention, the utility model provides a system for treating sewage. According to an embodiment of the present invention, referring to fig. 1, the system for treating sewage includes an iron chloride storage tank 100, a wastewater tank 200, and a controller 300.

According to an embodiment of the present invention, referring to fig. 1, the ferric chloride storage tank 100 is used for storing ferric chloride liquid, and ferric ions in ferric chloride in the ferric chloride storage tank 100 are hydrolyzed to generate ferric hydroxide precipitate, and then impurities and toxic substances in sewage are removed by using adsorption of the hydrolyzed generated ferric hydroxide. It should be noted that the material, specification, shape and volume of the iron chloride storage tank 100 are not limited in the present application as long as the iron chloride liquid can be stored and does not react with the iron chloride liquid.

According to the embodiment of the present invention, referring to fig. 1, in the height direction, the wastewater tank 200 is disposed below the ferric chloride storage tank 100, and the ferric chloride storage tank 100 is connected to the wastewater tank 200 through the pipeline 11, and at the same time, along the flowing direction of the fluid in the pipeline 11, the pipeline 11 is provided with the regulating valve 21 and the flow meter 22, and preferably, the height difference between the ferric chloride storage tank 100 and the wastewater tank 200 is not lower than 0.5 m. Specifically, by disposing the wastewater tank 200 below the ferric chloride storage tank 100 with a height difference of less than 0.5m in the height direction, at which the ferric hydroxide precipitate in the ferric chloride storage tank 100 can be transported into the wastewater tank 200 without a pump transport pressure, i.e., by making full use of the potential energy difference advantage of the ferric chloride liquid, and by disposing the regulating valve 21 and the flow meter 22 on the piping 11 between the ferric chloride storage tank 100 and the wastewater tank 200 in the flow direction of the fluid therein, the stable low flow rate supply of the ferric hydroxide precipitate in the piping is regulated by the cooperation of the regulating valve 21 and the flow meter 22. Therefore, the iron chloride storage tank 100 is stored at a high position, namely, the liquid level pressure difference between the iron chloride storage tank 100 and the sewage tank 200 is used for replacing the output water pressure of the pump, and the stable low-flow supply of the ferric hydroxide sediment in the iron chloride storage tank 100 is adjusted through the cooperation of the adjusting valve 21 and the flow meter 22, so that the purchase, operation, maintenance and repair costs of pump equipment are saved.

According to the embodiment of the present invention, referring to fig. 1, the controller 300 is connected to the flow meter 22 and the regulating valve 21, respectively, and the controller 300 adjusts the opening degree of the regulating valve 21 based on the display of the flow meter 22. Specifically, the controller 300 may monitor and recognize the indication displayed by the flow meter 22 in real time and adjust the opening of the regulating valve 21 based on the indication, thereby controlling accurate and stable low-flow supply of the ferric hydroxide precipitate in the pipeline 11. It should be noted that, a person skilled in the art may select the type and size of the controller according to actual needs, as long as the control effect can be achieved, and details are not described herein.

According to the embodiment of the present invention, referring to fig. 2, the system for treating sewage further comprises: and the air pressure pipeline 400, wherein the air pressure pipeline 400 extends to the position below the liquid level in the ferric chloride storage tank 100. Specifically, the air pressure pipeline 400 is used for introducing air pressure gas into the ferric chloride liquid in the ferric chloride storage tank 100, the discharge of the air pressure gas is utilized to drive the feed liquid, and the components of the feed liquid are uniformly distributed, so that the process requirements can be met while stirring is replaced. From this, through set up the pneumatics pipeline in this system of handling sewage, utilize the discharge of pneumatics to impel the feed liquid to replace agitating unit, with save equipment cost, thereby save equipment cost, simultaneously, adopt pneumatics pipeline simple structure, the operation of being convenient for. It should be noted that, a person skilled in the art may set the output pressure of the air pressure and select a suitable material of the air pressure pipeline according to actual needs, for example, the material of the air pressure pipeline may be plastic, so long as the material liquid can be uniformly mixed, and details are not described here.

According to the embodiment of the present invention, referring to fig. 2, the system for treating sewage further comprises: the ferric chloride supply line 500 extends below the liquid level in the ferric chloride storage tank 100, and the outlet of the ferric chloride supply line 500 is provided below the outlet of the air pressure line 400 in the height direction. Specifically, the ferric chloride liquid may be conveyed to the ferric chloride storage tank 100 through the ferric chloride conveying pipe 500, and an outlet of the ferric chloride conveying pipe 500 is disposed below an outlet of the air pressure gas pipe 400, so that the ferric chloride liquid is separated from the air pressure gas when the air pressure gas is discharged from the outlet of the ferric chloride conveying pipe 500, so as to avoid overflow of the ferric chloride liquid and ensure continuous operation of the sewage treatment process.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A system for treating wastewater, comprising:

a ferric chloride storage tank;

2. The system for treating wastewater of claim 1, wherein the difference in height between the ferric chloride storage tank and the wastewater tank is not less than 0.5 m.

3. The system for treating wastewater according to claim 1, further comprising:

and the air pressure pipeline extends to the position below the liquid level in the ferric chloride storage tank.

4. The system for treating wastewater of claim 3, further comprising:

and the ferric chloride conveying pipeline extends to the position below the liquid level in the ferric chloride storage tank, and the outlet of the ferric chloride conveying pipeline is arranged below the outlet of the air pressure pipeline in the height direction.