Sewage treatment device

Abstract

The utility model provides a sewage treatment device and relates to the field of sewage treatment. The sewage treatment device comprises: a treatment tank; the stirring assembly is arranged in the treatment tank; one end of the sampling assembly is communicated with the treatment tank; the detector is communicated with the other end of the sampling assembly; one end of the blowdown assembly is communicated with the treatment tank; the dewatering assembly is communicated with an outlet of the sewage draining assembly; a liquid outlet of the dehydration assembly is connected into the sedimentation tank; the controller is electrically connected with the stirring assembly, the sampling assembly, the detector, the pollution discharge assembly and the dehydration assembly; wherein the controller is used for adjusting the working frequency of the stirring assembly according to the content of suspended solids in the sewage detected by the detector. According to the sewage treatment device, sewage in the treatment tank is automatically detected, a detection result is fed back to the controller, and the controller controls the stirring assembly to work, so that the influence on subsequent treatment caused by unstable concentration of the sewage flowing out of the treatment tank is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of solid-liquid separation, in particular to a sewage treatment device. Background Art

[0002] At present, solid-liquid separators are widely used in various wastewater treatment systems, including municipal wastewater, catering wastewater, aquaculture wastewater and other industries. Due to the high SS and high pollutant concentration characteristics of aquaculture wastewater, the solid-liquid separation system is an indispensable part of the sewage treatment system. However, it is also limited by high-concentration wastewater, and the actual treatment effect varies to a certain extent. At present, the solid-liquid separator with higher efficiency in aquaculture wastewater treatment can squeeze dry manure to a moisture content of 60-65%, and the pollutant concentration is reduced by about 30-40%. In addition, due to the influence of pollutant concentration, the treatment efficiency of wastewater of different concentrations varies greatly. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a sewage treatment device, which automatically detects the sewage in the treatment tank and feeds back the detection results to the controller. The controller controls the operation of the stirring component to avoid unstable concentration of sewage flowing out of the treatment tank, which affects subsequent treatment.

[0004] The technical solution adopted by the utility model is:

[0005] A sewage treatment device, comprising:

[0006] treatment pools;

[0007] A stirring assembly is arranged in the treatment tank;

[0008] A sampling assembly, one end of which is connected to the processing tank;

[0009] a detector, connected to the other end of the sampling assembly;

[0010] A sewage discharge assembly, one end of which is connected to the treatment tank;

[0011] A dehydration component, connected to the outlet of the sewage discharge component;

[0012] a sedimentation tank, wherein the liquid outlet of the dehydration assembly is connected to the sedimentation tank; and

[0013] A controller, the controller being electrically connected to the stirring assembly, the sampling assembly, the detector, the sewage discharge assembly, and the dehydration assembly;

[0014] Wherein, the controller adjusts the working frequency of the stirring component according to the suspended matter content in the sewage detected by the detector.

[0015] Optionally, the sampling assembly comprises:

[0016] a sampling tube, one end of which is connected to the treatment tank, and the other end of which is connected to the detector; and

[0017] A self-priming pump is installed on the sampling tube, and the controller is electrically connected to the self-priming pump.

[0018] Optionally, one end of the sampling tube extending into the treatment tank has a trumpet-shaped sampling inlet tube.

[0019] Optionally, the sewage discharge assembly comprises:

[0020] A sewage pipe, one end of which is connected to the treatment tank, the inlet of which extends to the bottom of the treatment tank, and the other end of which is connected to the dehydration component; and

[0021] A sewage pump is connected to the sewage pipe.

[0022] Optionally, the dehydration component is a screw dehydrator.

[0023] Optionally, the sewage treatment device further comprises:

[0024] A dosing device is connected to the sedimentation tank.

[0025] Optionally, the dosing device comprises:

[0026] A reagent box installed on one side of the sedimentation tank;

[0027] A medicine delivery pipeline, one end of which is connected to the medicine box and the other end of which extends into the sedimentation tank; and

[0028] A metering pump is installed on the medicine delivery pipeline, and the metering pump is electrically connected to the controller.

[0029] Optionally, an aeration component is provided in the sedimentation tank.

[0030] Compared with the prior art, the beneficial effects of the utility model are:

[0031] 1. By automatically detecting the sewage in the treatment pool and feeding back the detection results to the controller, the controller controls the stirring component to avoid unstable sewage concentration out of the treatment pool, which affects subsequent treatment.

[0032] 2. Adjusting the working frequency of the stirring component according to the concentration of sewage can reduce the energy consumption of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 This is an overall schematic diagram of a sewage treatment plant.

[0035] Figure 2 This is a schematic diagram of the signal flow structure of the sewage treatment device.

[0036] Figure 3 This is a schematic diagram of the partial structure of a sewage treatment plant.

[0037] Reference numerals:

[0038] 1. Treatment pool;

[0039] 2. Stirring components;

[0040] 3. Sampling assembly; 31. Sampling tube; 32. Self-priming pump; 33. Sampling inlet tube;

[0041] 4. Detector;

[0042] 5. Sewage discharge assembly; 51. Sewage discharge pipe; 52. Sewage discharge pump;

[0043] 6. Dehydration components;

[0044] 7. Sedimentation tank;

[0045] 8. Controller;

[0046] 9. Dosing device; 91. Medicine box; 92. Medicine delivery pipeline; 93. Metering pump;

[0047] 10. Aeration components. DETAILED DESCRIPTION

[0048] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0049] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships conventionally placed when the product of the present invention is used, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0050] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the present utility model, unless otherwise clearly stipulated and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0052] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0053] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0054] like Figure 1 and Figure 2 As shown, an embodiment of the utility model provides a sewage treatment device, including: a treatment tank 1, a stirring component 2, a sampling component 3, a detector 4, a sewage discharge component 5, a dehydration component 6, a sedimentation tank 7 and a controller 8. The stirring component 2 is installed in the treatment tank 1, and is used to stir the sewage in the treatment tank 1. The sampling component 3 connects the treatment tank 1 and the detector 4, so as to facilitate the sewage in the treatment tank 1 to be sent to the detector 4 for detection, and the detector 4 feeds back the data to the controller 8 after detection. If the suspended matter in the detected sewage meets the subsequent treatment conditions, the controller 8 controls the sewage discharge component 5 to work, and discharges the sewage in the treatment tank 1 into the dehydration component 6 for dehydration treatment. The sewage generated during the dehydration treatment process enters the sedimentation tank 7 for post-treatment, and the dehydrated mud mass is recycled.

[0055] In actual use, since the COD content in the solid matter at the bottom of the manure ditch is lower than that of the fresh manure on the top layer, the manure at the bottom undergoes anaerobically decomposed. For sewage treatment, improving the solid phase separation efficiency is a key factor in reducing the difficulty of sewage treatment.

[0056] Under ideal conditions, the moisture content of the dry manure after dehydration by the dehydration component 6 can reach 65%, but due to the influence of pig hair, impurities, etc., the actual moisture content can be as high as about 80%. And because the SS content seriously affects the treatment efficiency of the subsequent biochemical treatment system, it is necessary to remove SS at the front end as much as possible.

[0057] Since the wastewater concentration in the treatment tank 1 changes daily and the SS content cannot be determined, the prior art generally keeps the stirring component 2 started. In order to reduce the energy consumption of the stirring component 2, the wastewater in the treatment tank 1 is sampled and tested regularly through the sampling component 3, and the controller 8 adjusts the start and stop of the stirring component 2 in real time according to the data of the detector 4 to ensure the water inlet stability of the sewage treatment device.

[0058] In the specific operation process, the inlet and outlet water of the 0.5mm dehydration component 6 are sampled and tested, and the COD, SS and slag content of the water samples are compared and analyzed. The data is then uploaded through the system, and finally the start and stop of the stirring component 2 is controlled by the slag content, thereby ensuring that the inlet concentration of the biochemical system is too low and saving energy at the same time.

[0059] It should be noted that the stirring assembly 2 in this embodiment is of existing design, and its specific structure will not be described in detail here.

[0060] In one embodiment, if Figure 1 As shown, the sampling assembly 3 includes: a sampling tube 31 and a self-priming pump 32. One end of the sampling tube 31 is connected to the treatment tank 1, and the other end is connected to the detector 4. The self-priming pump 32 is arranged on the sampling tube 31, and when in use, the wastewater is sucked from the treatment tank 1 into the detector 4 by the suction force of the self-priming pump 32.

[0061] In one embodiment, if Figure 3 As shown, in order to facilitate the wastewater with suspended matter to enter the sampling tube 31 , a trumpet-shaped sampling inlet tube 33 is provided at one end of the sampling tube 31 extending into the treatment tank 1 .

[0062] In one embodiment, if Figure 1 and Figure 2 As shown, the sewage discharge assembly 5 includes: a sewage discharge pipe 51 and a sewage discharge pump 52. The sewage discharge pipe 51 connects the treatment tank 1 and the dehydration assembly 6. The sewage discharge pump 52 is installed on the sewage discharge pipe 51. After the waste treatment in the treatment tank 1 meets the standard, the detector 4 feeds back the information to the controller 8. The controller 8 controls the sewage discharge pump 52 to work and send the wastewater in the treatment tank 1 to the dehydration assembly 6 for dehydration.

[0063] In one embodiment, in order to reduce the cost of the device, the dehydration component 6 uses a screw press dehydrator commonly used in sewage treatment.

[0064] In one embodiment, if Figure 1 As shown, the sewage treatment device further includes: a dosing device 9, which is connected to the sedimentation tank 7.

[0065] The dosing device 9 includes: a medicine box 91, a medicine delivery pipeline 92 and a metering pump 93. The medicine box 91 is arranged on one side of the sedimentation tank 7, one end of the medicine delivery pipeline 92 is connected to the medicine box 91, and the other end is connected to the sedimentation tank 7. The metering pump 93 is arranged on the medicine delivery pipeline 92.

[0066] When the sewage enters the sedimentation tank 7, the controller 8 controls the metering pump 93 to work, and the metering pump 93 adds a fixed amount of reagent into the sedimentation tank 7 according to a preset reagent dosage.

[0067] In one embodiment, if Figure 1 As shown, in order to facilitate the treatment of wastewater in the sedimentation tank 7, an aeration assembly 10 is provided in the sedimentation tank 7. During the aeration process, the wastewater and the reagent are fully mixed.

[0068] It should be noted that the aeration assembly 10 is of existing design, and its specific structure will not be described in detail here.

[0069] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A sewage treatment device, It is characterized in that include: treatment pools; A stirring assembly is arranged in the treatment tank; A sampling assembly, one end of which is connected to the processing tank; a detector, connected to the other end of the sampling assembly; A sewage discharge assembly, one end of which is connected to the treatment tank; A dehydration component, connected to the outlet of the sewage discharge component; A sedimentation tank, wherein the liquid outlet of the dehydration assembly is connected to the sedimentation tank; as well as A controller, the controller being electrically connected to the stirring assembly, the sampling assembly, the detector, the sewage discharge assembly, and the dehydration assembly; Wherein, the controller adjusts the working frequency of the stirring component according to the suspended matter content in the sewage detected by the detector.

2. The sewage treatment device according to claim 1, It is characterized in that The sampling assembly comprises: a sampling tube, one end of which is connected to the treatment tank, and the other end of which is connected to the detector; and A self-priming pump is installed on the sampling tube, and the controller is electrically connected to the self-priming pump.

3. The sewage treatment device according to claim 2, It is characterized in that The end of the sampling tube extending into the treatment tank is provided with a trumpet-shaped sampling inlet tube.

4. The sewage treatment device according to claim 1, It is characterized in that The sewage discharge assembly comprises: A sewage pipe, one end of which is connected to the treatment tank, the inlet of which extends to the bottom of the treatment tank, and the other end of which is connected to the dehydration component; and A sewage pump is connected to the sewage pipe.

5. The sewage treatment device according to claim 1, It is characterized in that The dehydration component is a screw stack dehydrator.

6. The sewage treatment device according to claim 1, It is characterized in that The sewage treatment device further comprises: A dosing device is connected to the sedimentation tank.

7. The sewage treatment device according to claim 6, It is characterized in that The dosing device comprises: A reagent box installed on one side of the sedimentation tank; A medicine delivery pipeline, one end of which is connected to the medicine box and the other end of which extends into the sedimentation tank; and A metering pump is installed on the medicine delivery pipeline, and the metering pump is electrically connected to the controller.

8. The sewage treatment device according to claim 1, It is characterized in that An aeration component is arranged in the sedimentation tank.

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