CN115779780A

CN115779780A - Sewage blending device and sewage blending method

Info

Publication number: CN115779780A
Application number: CN202211407073.3A
Authority: CN
Inventors: 董玉刚; 徐洋; 贾小俊; 刘娇; 潘健; 张宾山
Original assignee: Beijing Qinglan Environmental Protection Machinery Co ltd
Current assignee: Beijing Qinglan Environmental Protection Machinery Co ltd
Priority date: 2022-11-10
Filing date: 2022-11-10
Publication date: 2023-03-14

Abstract

The invention relates to a sewage blending device and a sewage blending method, wherein the sewage blending device comprises: a raw pulp tank; a blending pool; the sewage monitoring device is communicated with the blending tank and is used for detecting the sewage concentration in the blending tank in real time; when the sewage concentration in the primary pulp tank is lower than a first set concentration, the sewage in the primary pulp tank is conveyed to the blending tank. The sewage blending device can measure the sewage concentration and blend the sewage at the same time, and greatly improves the sewage blending efficiency.

Description

Sewage blending device and sewage blending method

Technical Field

The invention relates to the technical field of sewage treatment, in particular to a sewage blending device and a sewage blending method.

Background

Zero discharge of sewage is a problem which is nowadays troublesome, for example, the treatment of sewage in concrete mixing plants is increasingly demanding. Wherein the sewage source mainly comprises sewage generated after the mixing tank truck is cleaned, unqualified concrete and the like.

To achieve zero discharge of the waste water, it is desirable to utilize the waste water in concrete mixing. However, the sewage contains various complex substances, the concentration of the sewage has great influence on the performance of the concrete, and if the sewage with the excessive concentration is mixed into the concrete, potential safety hazards of civil buildings and the like can exist, and even serious accidents can be caused. Therefore, the sewage needs to be formulated to meet the concentration requirement to ensure the concrete performance.

In the related technology, the sewage is weighed by a weighing tank, the sewage concentration is obtained by calculation, clear water with proper mass is added into the sewage according to the sewage concentration, so that the sewage meeting the standard concentration is prepared, and then each prepared tank of sewage is placed into a finished product tank. The mode of allocating sewage tank by tank is inconvenient and the efficiency is low.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a sewage blending device and a sewage blending method.

The invention provides a sewage blending device, comprising: a raw pulp tank; a blending pool; the sewage monitoring device is communicated with the blending tank and is used for detecting the sewage concentration in the blending tank in real time; when the sewage concentration in the primary pulp tank is lower than a first set concentration, the sewage in the primary pulp tank is conveyed to the blending tank.

In some embodiments, the raw slurry tank is in selective communication with the sewage monitoring device, which is also configured to detect a sewage concentration in the raw slurry tank.

In some embodiments, further comprising: a thick slurry tank; the liquid inlet of the separation device is selectively communicated with the primary pulp pool, and the first outlet of the separation device is selectively communicated with the primary pulp pool; and/or the first outlet of the separation device is in selective communication with the blending tank; wherein, when sewage concentration in the magma pond is higher than or equal to first settlement concentration, separator's inlet with the magma pond intercommunication, and separator's first export with the magma pond and/or the allotment pond intercommunication, through sewage in the magma pond is carried to separator, so that come from sewage in the magma pond via the exhaust low concentration sewage of separator's first export is carried to the magma pond and/or the allotment pond, and come from sewage in the magma pond via the high concentration sewage of separator separation follow in separator's the second export flow direction in the magma pond.

In some embodiments, a third liquid level detection device is arranged in the blending tank and used for detecting the sewage liquid level in the blending tank; when the sewage concentration in the primary pulp tank is higher than or equal to the first set concentration and the sewage liquid level in the blending tank is higher than a third set liquid level, a liquid inlet of the separation device is communicated with a first water pump in the primary pulp tank, a first outlet of the separation device is communicated with the primary pulp tank, and the sewage in the primary pulp tank is conveyed to the separation device through the first water pump so that the low-concentration sewage discharged from the sewage in the primary pulp tank through the first outlet of the separation device is conveyed to the primary pulp tank; the sewage concentration in the magma pond is higher than or equal to when first settlement concentration, just when the sewage liquid level in the allotment pond is less than the third settlement liquid level, separator's inlet with first water pump intercommunication in the magma pond, and separator's first export with the allotment pond intercommunication, through first water pump will sewage in the magma pond is carried extremely separator, so that come from the sewage in the magma pond via separator's first export exhaust low concentration sewage carry extremely the allotment pond.

In some embodiments, the thick stock tank is in selective communication with the blending tank; when the sewage monitoring device detects that the sewage concentration in the blending tank is lower than a set standard concentration, the sewage in the thick slurry tank is conveyed to the blending tank.

In some embodiments, the thick matter tank is also in selectable communication with the sewage monitoring device, which is also used to detect the sewage concentration in the thick matter tank; the thick slurry tank is selectively communicated with a liquid inlet of the separation device; when the sewage concentration of the thick slurry tank is lower than a second set concentration, the thick slurry tank is communicated with a liquid inlet of the separation device, a first outlet of the separation device is communicated with the blending tank and/or the primary slurry tank, the sewage in the thick slurry tank is conveyed to the cyclone, so that the sewage from the thick slurry tank is conveyed to the blending tank and/or the primary slurry tank through the low-concentration sewage of the first outlet of the separation device, and the sewage from the thick slurry tank flows into the thick slurry tank from a second outlet of the separation device through the separation device for separating the high-concentration sewage.

In some embodiments, the mixing tank is in selective communication with the liquid inlet of the separation device; when the concentration in the blending tank is higher than the preset standard concentration, the blending tank is communicated with the liquid inlet of the separation device, and the first outlet of the separation device is communicated with the raw pulp tank and/or the blending tank, so that the low-concentration sewage discharged from the first outlet of the separation device in the blending tank is conveyed to the raw pulp tank and/or the blending tank.

In some embodiments, further comprising: a settling vessel provided with a top inlet, a bottom outlet, and a drain between the top inlet and the bottom outlet; the first outlet of the separation device is communicated with the top inlet, the bottom outlet is communicated with the thick slurry tank, and the discharge port is communicated with the raw slurry tank and/or the blending tank.

The invention also provides a sewage blending method, which is applied to the sewage blending device in any embodiment, and the method comprises the following steps: detecting the sewage concentration in the primary pulp tank; if the concentration of the sewage in the primary pulp tank is lower than a first set concentration, conveying the sewage in the primary pulp tank to the blending tank; if sewage concentration in the magma pond is higher than first settlement concentration, make former thick liquid pond and separator's inlet intercommunication to and make separator's first export with former thick liquid pond and/or thick liquid pond intercommunication, sewage in the magma pond carry to separator, so that come from sewage in the magma pond via the low concentration sewage of separator's first export exhaust is carried to former thick liquid pond and/or the allocation tank, and come from sewage in the magma pond via the high concentration sewage of separator separation follows separator's second export flow direction in the thick liquid pond.

In some embodiments, the method further comprises: detecting the sewage concentration in the blending tank; and if the sewage concentration in the blending tank is lower than the set standard concentration, conveying the sewage in the thick slurry tank to the blending tank until the sewage concentration in the blending tank reaches the set standard concentration.

In some embodiments, the method further comprises: detecting the sewage concentration in the blending tank; if the concentration in the blending tank is higher than the preset standard concentration, the blending tank is communicated with the liquid inlet of the separation device, and the first outlet of the separation device is communicated with the raw pulp tank and/or the blending tank, so that low-concentration sewage discharged from the blending tank through the first outlet of the separation device is conveyed to the raw pulp tank and/or the blending tank.

After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:

according to the invention, the sewage in the primary pulp tank is conveyed into the blending tank through the first water pump, the sewage concentration of the blending tank is detected in real time through the sewage monitoring device, and blending is carried out while detection is carried out, so that the efficiency is greatly improved compared with a one-tank blending mode in the related art.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is a block diagram illustrating a sewage blending apparatus according to an exemplary embodiment of the present invention;

FIG. 2 is an enlarged schematic view of a portion of the structure shown in FIG. 1 in accordance with an exemplary embodiment of the present invention;

FIG. 3 is a flow chart illustrating a method of sewage blending according to an exemplary embodiment of the present invention;

FIG. 4 is a flow chart illustrating a sewage blending method according to another exemplary embodiment of the present invention;

FIG. 5 is a perspective view of a wastewater monitoring apparatus according to an exemplary embodiment of the present invention;

FIG. 6 is a front view of a wastewater monitoring device according to an exemplary embodiment of the present invention;

it should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.

Detailed Description

In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "contacting," and "communicating" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and 2, the present invention provides a sewage blending device, comprising: a stock tank 10 and a blending tank 30.

The raw slurry tank 10 is used to house a source of sewage, which may be from sewage generated after the mixer tanker is cleaned, sewage from rejected concrete, etc. For example, a cleaning wastewater recovery tank may be installed in the field, and the cleaning wastewater in the tank may be transferred to a sand separator by a water pump and then recovered to the slurry tank 10.

In one example, a filter plate may be disposed in the raw slurry tank 10, and the raw slurry tank 10 is divided into two holding areas, such as a feeding area and a filtering area, wherein the sewage source may be poured into the feeding area first, filtered by the filter plate, and then flowed into the filtering area, so as to filter out larger particulate matters in the sewage.

A first water pump 11 may be provided in the raw stock tank 10 for delivering the sewage in the raw stock tank 10 to a desired location.

The blending tank 30 is used for blending sewage concentration. The sewage monitoring device 31 is communicated with the blending tank 30 and is used for detecting the sewage concentration in the blending tank 30 in real time. For example, the sewage monitoring device 31 may be located above the blending tank 30. If the sewage concentration in the blending tank 30 meets the set standard concentration, the sewage in the blending tank 30 can be conveyed to the finished product tank 40 for the sewage utilization of the mixing plant.

When the concentration of the sewage in the primary pulp tank 10 is lower than a first set concentration, the first water pump 11 conveys the sewage in the primary pulp tank 10 to the blending tank 30. The first set concentration value may be lower than the set standard concentration. In the embodiment of the invention, a water pump is not needed, and the sewage in the raw slurry tank 10 can flow to the blending tank 30 by utilizing the self gravity of the sewage. For example, the outlet of the stock tank 10 is higher than the blending tank 30.

During the use, can detect the sewage in the magma pond 10 earlier, if the sewage concentration in the magma pond 10 is less than when first settlement concentration, the explanation can directly be utilized, can directly carry the deployment pond with the sewage in the magma pond 10 through first water pump 11 this moment.

According to the invention, the sewage in the primary pulp tank 10 is conveyed to the blending tank through the first water pump 11 or by utilizing the self gravity of the sewage, the sewage concentration of the blending tank is detected in real time through the sewage monitoring device 31, and the blending is carried out while the detection is carried out, so that the efficiency is greatly improved compared with the one-tank blending mode in the related art.

In each embodiment of the present invention, the flow direction of the sewage in each sewage tank (the primary pulp tank 10, the blending tank 30, and the thick pulp tank 20) may be conveyed by pumping with a water pump, or by using the gravity of the sewage itself. In the following description, the sewage is delivered by pumping with a water pump, but is not limited thereto, and it is understood that in some possible embodiments, the sewage may be delivered to a desired sewage tank without pumping with a water pump, i.e., by using the gravity of the sewage itself.

In one example, the raw slurry tank 10 is selectively communicated with a sewage monitoring device 31 through a first water pump 11, and the sewage monitoring device is also used for detecting the sewage concentration in the raw slurry tank 10. By selectively connectable herein is meant that the communication channel can be opened or closed. For example, the channel of the first water pump 11 communicating with the sewage monitoring device 31 can be switched between on and off, i.e. the channel of the first water pump 11 communicating with the sewage monitoring device 31 may be communicated or not. For example, the first water pump 11 is communicated with the sewage monitoring device 31 through a first pipeline L1, an electromagnetic valve is disposed on the first pipeline L1, and the selective communication between the first water pump 11 and the sewage monitoring device 31 is realized through the opening and closing of the electromagnetic valve.

Detect the sewage in the magma pond 10 through sewage monitoring devices 31, if the sewage concentration in the magma pond 10 is lower, be less than below the standard concentration, then can be continuous open first water pump 11, at the testing process, carry the sewage in the magma pond 10 to allotment pond 30.

In another example, the sewage concentration in the raw stock chest 10 is intermittently measured using the sewage monitoring device 31, and if the sewage concentration is less than the first set concentration, the tank truck can be flushed with the sewage in the raw stock chest 10, thereby increasing the sewage concentration in the raw stock chest 10. This reduces the use of fresh water when flushing the tanker.

When the sewage concentration in the primary pulp tank 10 is equal to or higher than a set value, the tank car can be cleaned by using clean water, so that the sewage concentration in the primary pulp tank 10 is reduced. Then the sewage in the primary pulp tank enters a blending tank for further blending. The concentration of the primary pulp tank is increased to be close to the set value, and then the primary pulp tank enters the blending tank, so that the sewage blending speed is increased.

In another example, the first water pump 11 is communicated with the blending tank 30 through a second pipeline L2, and an electromagnetic valve is disposed on the second pipeline. The electromagnetic valve on the first pipeline L1 can be opened firstly to detect the sewage in the primary pulp tank 10, and if the sewage meets the standard, the electromagnetic valve on the first pipeline L1 is closed. Then the electromagnetic valve on the second pipeline L2 is opened, the sewage in the primary pulp tank 10 is conveyed to the blending tank 30 through the first water pump 11, and in the process, the sewage monitoring device 31 in the blending tank 30 can be opened to continuously detect the sewage in the blending tank 30, so that the sewage concentration is ensured to meet the standard.

In some embodiments, the sewage blending device further comprises: a thick slurry tank 20 and a separation device. The separation device is used for separating the sewage into low-concentration sewage and high-concentration sewage. The separating device comprises a liquid inlet, a first outlet and a second outlet, sewage enters from the liquid inlet and is separated by the separating device, the sewage with low concentration is discharged from the first outlet and flows to a required sewage pool, and the sewage with high concentration is discharged from the second outlet and flows to the thick slurry pool 20. The separation device can be located at a position above the thickener tank 20. The separation device may be a system having a cyclone settling function such as a centrifuge, a cyclone, or the like to separate sewage into low-concentration sewage and high-concentration sewage. In the embodiments of the present invention, the cyclone 21 is described as an example of the separation device, but the present invention is not limited thereto. Illustratively, a liquid inlet of the cyclone 21 is selectively communicated with the first water pump 11, and an overflow port of the cyclone 21 is selectively communicated with the primary pulp pool 10; and/or the overflow port of the cyclone can be selectively communicated with the blending tank 30. When the sewage concentration in the primary pulp tank 10 is higher than a first set concentration, the liquid inlet of the cyclone 21 is communicated with the first water pump 11, the overflow port of the cyclone is communicated with the primary pulp tank 10 and/or the blending tank 30, the sewage in the primary pulp tank 10 is conveyed to the cyclone 21 through the first water pump 11, so that the low-concentration sewage discharged from the overflow port of the cyclone 21 from the sewage in the primary pulp tank 10 is conveyed to the primary pulp tank 10 and/or the blending tank 30, and the high-concentration sewage settled from the cyclone 21 from the sewage in the primary pulp tank 10 is left in the thick pulp tank 20.

In one example, the cyclone 21 is connected to the first water pump 11 through a third line L3, a solenoid valve is provided on the third line L3, an overflow port of the cyclone 21 is connected to the raw slurry tank 10 through a fourth line L4, and a solenoid valve is provided on the fourth line L4. When the sewage concentration in the primary pulp pool 10 is higher than a first set concentration, the electromagnetic valve on the L3 pipeline is opened, so that the liquid inlet of the cyclone 21 is communicated with the first water pump 11; the solenoid valve on the fourth pipeline L4 is opened to communicate the overflow port of the cyclone 21 with the raw pulp tank 10, and the sewage in the raw pulp tank 10 is transferred to the cyclone 21 by the first water pump 11, so that the low-concentration sewage discharged from the sewage in the raw pulp tank 10 through the overflow port of the cyclone 21 is returned to the raw pulp tank 10, and the concentration of the sewage in the raw pulp tank 10 is adjusted. Meanwhile, the electromagnetic valve on the first pipeline L1 may be opened, so as to detect the sewage in the primary pulp tank 10 until the sewage in the primary pulp tank 10 is lower than a first set concentration value.

In another example, the overflow port of the cyclone 21 is also communicated with the blending tank 30 through a fifth pipeline L5, and a solenoid valve is arranged on the fifth pipeline L5. Similarly, when the sewage concentration in the primary pulp tank 10 is higher than a first set concentration, the solenoid valve on the L3 of the third pipeline is opened, so that the liquid inlet of the cyclone 21 is communicated with the first water pump 11; an electromagnetic valve on the fifth pipeline L5 is opened to communicate the overflow port of the cyclone 21 with the blending tank 30, and the sewage in the primary pulp tank 10 is transferred to the cyclone 21 through the first water pump 11, so that the low-concentration sewage discharged from the sewage in the primary pulp tank 10 through the overflow port of the cyclone 21 is transferred to the blending tank 30, and the concentration of the sewage in the blending tank 30 is blended. Meanwhile, the sewage monitoring device 31 communicated with the blending tank 30 can be started to continuously detect the sewage in the blending tank 30.

It can be understood that the electromagnetic valve on the fifth pipeline L5 is opened to communicate the overflow port of the cyclone 21 with the blending tank 30, and the electromagnetic valve on the fourth pipeline L4 is also opened to communicate the overflow port of the cyclone 21 with the raw slurry tank 10, that is, the sewage in the raw slurry tank 10 is delivered to the cyclone 21 by the first water pump 11, so that the low-concentration sewage discharged from the overflow port of the cyclone 21 in the raw slurry tank 10 is delivered to the blending tank 30 and the raw slurry tank 10, and the sewage in the raw slurry tank 10 is blended while the concentration of the sewage in the blending tank 30 is blended.

Further, as shown in fig. 1 and fig. 2, the sewage blending apparatus further includes a settling vessel 22 (a concentration settling tank), and the settling vessel 22 is provided with a top inlet 221, a bottom outlet 222, and a discharge port 223 between the top inlet and the bottom outlet. The overflow port of the cyclone 21 is communicated with the top inlet 211, the bottom outlet 222 is communicated with the thick stock tank 20, and the discharge port 223 is communicated with the raw stock tank 10 and/or the blending tank 30. The settling container 22 is used for further settling the sewage discharged from the overflow port of the cyclone 21 for liquid-solid separation, so that the larger-particle sewage (sewage with higher concentration) is located at the bottom of the settling container 22 and discharged into the thick slurry tank 20 from the bottom outlet 222, and the cleaner sewage (sewage with lower concentration) is conveyed to the primary slurry tank 10 and/or the blending tank 30 from the discharge port 223, thereby performing sewage blending on the primary slurry tank 10 and/or the blending tank 30.

It will be appreciated that in some of the examples described above and below, the separated sewage settled via the overflow of the cyclone 21 can be directly sent to the primary pulp tank 10 and/or the blending tank 30, or can be settled again by the settling vessel 22 and then sent to the primary pulp tank 10 and/or the blending tank 30.

In some embodiments, a third liquid level detection device is disposed in the blending tank 30 for detecting the sewage level in the blending tank 30. The third liquid level detection means may be, for example, a liquid level sensor. When the sewage concentration in the primary pulp tank 10 is higher than the first set concentration and the sewage liquid level in the blending tank 30 is higher than the third set liquid level, it indicates that the liquid level in the blending tank 30 is higher, at this time, the liquid inlet of the cyclone 21 is communicated with the first water pump 11, the overflow port of the cyclone 21 is communicated with the primary pulp tank 10, and the sewage in the primary pulp tank 10 is conveyed to the cyclone 21 through the first water pump 11, so that the low-concentration sewage discharged from the overflow port of the cyclone 21 from the sewage in the primary pulp tank 10 is conveyed to the primary pulp tank 10. That is to say, the sewage concentration in the primary pulp tank 10 is high, the liquid level of the blending tank 30 is high, the blending tank 30 does not need to enter sewage, the high-concentration sewage from the primary pulp tank is settled and separated, and the low-concentration sewage is returned to the primary pulp tank 10 through the cyclone 21, so that the sewage in the primary pulp tank 10 is blended.

When the sewage concentration in the primary pulp tank 10 is higher than the first set concentration and the sewage liquid level in the blending tank 30 is lower than the third set liquid level, which indicates that the liquid level in the blending tank 30 is lower, at this time, the liquid inlet of the cyclone 21 is communicated with the first water pump 11, the overflow port of the cyclone 21 is communicated with the blending tank 30, and the sewage in the primary pulp tank 10 is conveyed to the cyclone 21 through the first water pump 11, so that the low-concentration sewage discharged from the overflow port of the cyclone 21 by the sewage in the primary pulp tank 10 is conveyed to the blending tank 30. That is to say, the sewage concentration in the primary pulp tank 10 is high, and the liquid level of the blending tank 30 is high, and the blending tank 30 does not need to feed sewage, and the sewage is settled by the cyclone 21, so that the low-concentration sewage from the settling separation of the high-concentration sewage in the primary pulp tank returns to the primary pulp tank 10, and the sewage in the primary pulp tank 10 is blended.

In some embodiments, a first liquid level detecting device is further disposed in the raw slurry tank 10 for detecting the sewage level in the raw slurry tank 10. The first level detection means may be, for example, a level sensor. When the sewage concentration in the primary pulp tank 10 is higher than a first set concentration and the sewage level in the primary pulp tank 10 is higher than a first set liquid level, the liquid inlet of the cyclone 21 is communicated with the first water pump, the overflow port of the cyclone 21 is communicated with the blending tank 30, and the overflow port of the cyclone 21 is not communicated with the primary pulp tank 10, so that the sewage from the primary pulp tank 10 is conveyed to the blending tank 30 through the low-concentration sewage discharged from the overflow port of the cyclone.

When the sewage concentration in the raw pulp tank 10 is high and the sewage liquid level is also high, the sewage with the high concentration in the raw pulp tank 10 is settled through the cyclone 21 to obtain the sewage with the low concentration, and then the sewage is conveyed into the blending tank 30 to blend the sewage in the blending tank 30.

In some embodiments, the thick matter tank 20 is provided with a second water pump 23, and the thick matter tank 20 is selectively communicated with the blending tank 30 through the second water pump 23. When the sewage monitoring device 31 detects that the sewage concentration in the blending tank 30 is lower than the set standard concentration, the second water pump 23 conveys the sewage in the thick liquid tank 20 to the blending tank 30. In an example, the second water pump 23 is communicated with the blending tank 30 through a sixth pipeline L6, and an electromagnetic valve is disposed on the sixth pipeline L6. When the sewage monitoring device 31 detects that the sewage concentration in the blending tank 30 is lower than the set standard concentration, the electromagnetic valve on the sixth pipeline L6 is opened, and the sewage in the thick slurry tank 20 is conveyed to the blending tank 30 through the second water pump 23, so that the high-concentration sewage in the thick slurry tank 20 is utilized, and the zero discharge of the sewage is realized.

In some embodiments, the thick matter tank 20 is provided with a second water pump 23, and the thick matter tank is also in selective communication with a sewage monitoring device 31 through the second water pump 23, and the sewage monitoring device is also used for detecting the sewage concentration in the thick matter tank 20. Illustratively, the second water pump 23 is communicated with the sewage monitoring device 31 through a seventh pipeline L7, and an electromagnetic valve is disposed on the seventh pipeline L7. A second water pump 23 is in selective communication with the liquid inlet of the cyclone 21. Illustratively, the second water pump 23 is communicated with the liquid inlet of the cyclone 21 through an eighth pipeline L8, and an electromagnetic valve is arranged on the eighth pipeline. When the sewage concentration in the thick slurry tank 20 is lower than the second set concentration, the second water pump 23 is communicated with the liquid inlet of the cyclone 21 (for example, an electromagnetic valve on the eighth pipeline L8 is opened), the overflow port of the cyclone 21 is communicated with the blending tank 30 and/or the raw slurry tank 10, the sewage in the thick slurry tank 20 is conveyed to the cyclone 21 by the second water pump 23, so that the low-concentration sewage discharged from the sewage in the thick slurry tank 20 through the overflow port of the cyclone 21 is conveyed to the blending tank 30 and/or the raw slurry tank 10, and the high-concentration sewage settled by the cyclone 21 from the sewage in the thick slurry tank 20 is left in the thick slurry tank 20. When the sewage concentration in the thick pulp tank 20 is higher, the sewage concentration is reduced by the cyclone 21 and then enters the blending tank 30 and/or the raw pulp tank 10, so that the sewage concentration in the blending tank 30 and/or the raw pulp tank 10 is blended.

In some embodiments, the thickener tank 20 is provided with a second water pump 23, and the second water pump 23 is selectively communicated with the liquid inlet of the cyclone 21. A second liquid level detection device is arranged in the thick liquid tank 20 and used for detecting the sewage liquid level in the thick liquid tank 20. The second liquid level detection means may be, for example, a liquid level sensor. When the sewage level in the slurry tank 20 is higher than the second set level, the liquid inlet of the cyclone 21 is communicated with the second water pump 23, and the overflow port of the cyclone 21 is communicated with the blending tank 30, so that the low-concentration sewage discharged from the sewage in the slurry tank 20 through the overflow port of the cyclone 21 is conveyed to the blending tank 30. And/or when the sewage liquid level in the concentrated slurry pool 20 is higher than a second set liquid level and the sewage liquid level in the primary slurry pool 10 is lower than a first set liquid level, the liquid inlet of the cyclone 21 is communicated with the second water pump 23, and the overflow port of the cyclone 21 is communicated with the primary slurry pool 10, so that the low-concentration sewage discharged from the sewage in the concentrated slurry pool 20 through the overflow port of the cyclone 21 is conveyed to the primary slurry pool 10.

In some embodiments, the blending tank 30 is provided with a third water pump 32, and the third water pump 32 is selectively communicated with the liquid inlet of the cyclone 21. Illustratively, the third water pump 32 is connected to the liquid inlet of the cyclone 21 through a ninth pipeline L9, and an electromagnetic valve is disposed on the ninth pipeline. When the concentration in the blending tank 30 is higher than the predetermined standard concentration, the third water pump 32 is communicated with the liquid inlet of the cyclone 21 (for example, an electromagnetic valve on the ninth pipeline L9 is opened), and the overflow port of the cyclone 21 is communicated with the virgin stock tank 10 and/or the blending tank 30, so that the low-concentration sewage discharged from the blending tank 30 through the overflow port of the cyclone 21 is delivered to the virgin stock tank 10 and/or the blending tank 30.

In some embodiments, a cleaning pipeline may be introduced into the blending tank 30 and/or the sewage monitoring device 31, and the blending tank 30 and/or the sewage monitoring device 31 may be cleaned by clean water.

In some embodiments, the specific structure of the sewage detection device 31 and the cooperation manner with each sewage pool in the above embodiments are as follows:

as shown in fig. 5 and 6, the sewage monitoring apparatus includes: a flow stabilizing vessel 310 and a weighing scale.

The steady flow container 310 is provided with a first water inlet 311, a steady flow port 312 and a first overflow port 313. The first water inlet 311, the steady flow port 312 and the first overflow port 313 are all communicated with the cavity of the steady flow container 310. The first water inlet 311 is communicated with the blending tank 30, and sewage in the blending tank 30 enters the flow stabilizing container 310 from the first water inlet 311. The stabilizing port 312 is located below the first overflow port 313 for allowing the sewage in the stabilizing vessel 310 to flow out. The first overflow port 313 is used for overflowing the sewage when the sewage level in the steady flow container 310 rises to the position of the first overflow port 313, so that the sewage in the steady flow container 310 is in an overflow state. Specifically, the flow rate of the sewage in the blending tank 230 entering the flow stabilizing container 310 from the first water inlet 311 is larger than the flow rate of the sewage flowing out from the flow stabilizing port 312, so that the sewage level in the flow stabilizing container 310 can rise to or exceed the first overflow port 313 to overflow from the first overflow port 13. The processes of sewage entering from the first water inlet 311, overflowing from the first overflow port 313 and flowing out from the steady flow port 312 are performed simultaneously (in real time), so that the sewage in the steady flow container 310 can be always in an overflow state, and further, when the sewage in the steady flow container 310 is in the overflow state, the sewage flows out from the steady flow port 312 at a constant flow rate by utilizing the self gravity, namely, the flow rate of the sewage flowing out from the steady flow port 312 is almost stable and does not change suddenly.

The weigh scale is used to measure the weight of the weigh receptacle 320 and the sewage therein, such as from the blending tank 30. The weighing container 320 is provided with a second water inlet 321, a water outlet 322 and a second overflow port 323, and the second water inlet 321, the water outlet 322 and the second overflow port 323 are all communicated with the cavity of the weighing container 320. The water outlet 322 is located below the second water inlet 321 and the second overflow port 323, and the second water inlet 321 is located below the steady flow port 312 and is used for receiving the sewage flowing out of the steady flow port 312. The water outlet 322 is used for draining the sewage in the weighing container 320. The second overflow port 323 is used to overflow the sewage when the sewage level in the weighing container 320 reaches the position of the second overflow port 323. Wherein the flow rate of the sewage flowing out of the steady flow port 312 is larger than that of the sewage flowing out of the water outlet 322, so that the sewage in the weighing container 320 is in an overflow state.

Specifically, sewage flowing out of the constant flow port 312 at a constant flow rate enters the weighing container 320 through the second water inlet 321 of the weighing container 320, the flow rate of sewage flowing out of the constant flow port 312 is greater than that of sewage flowing out of the water outlet 322, so that the sewage level in the weighing container 320 can rise to the second overflow port 323 to overflow from the first overflow port 313, and the processes of sewage entering the weighing container 320 from the second water inlet 321, overflowing from the second overflow port 323 and flowing out of the water outlet 322 are performed simultaneously (in real time), so that the sewage in the weighing container 320 can be in an overflow state all the time. Moreover, since the sewage flowing out of the steady flow port 312 flows out at a constant flow rate, that is, the flow rate of the sewage entering the weighing container 320 from the second water inlet 321 is constant, and the flow rate is uniform, the sewage level in the weighing container 320 can be always in a stable state, and the sewage level in the overflow state in the weighing container 320 hardly changes, so that the volume of the sewage in the weighing container 320 hardly changes, the measured weight of the sewage in the weighing container 320 is more accurate, and the calculated sewage concentration in the blending tank 30 is more accurate.

The above-mentioned sewage concentration calculation method may be that, the weight of the weighing container 320 carrying clear water is checked by introducing clear water into the sewage monitoring device, and then the sewage to be measured is introduced into the sewage monitoring device, and the weight difference between the weighing container 320 carrying sewage and the weight of the weighing container carrying sewage is measured by the above-mentioned method, so as to obtain the sewage concentration to be measured, and the sewage concentration may be the sewage solid content. Specifically, first, the weighing container 320 is filled with clear water in the sewage monitoring apparatus to obtain a first weight. Then, the sewage to be detected is introduced into the sewage monitoring device, and the program starts to operate concentration (density) calculation after the program set weight reaches the first quality, so that meaningless data of the program are reduced, and the efficiency is higher. The above-mentioned sewage concentration calculation method may also be that the sewage concentration (density) is directly obtained by measuring the weight of the sewage in the weighing container 320 in the sewage monitoring device, and since the weighing container 320 has a fixed volume, the ratio of the weight (mass) of the sewage in the weighing container 320 to the volume of the weighing container 320 can obtain the sewage concentration (density).

The sewage detection device can be connected with a digital display to directly display the concentration value, and the concentration value can also be calculated through directly measuring the weight.

Specifically, the inventors found that in the sewage monitoring apparatus of the related art, if the flow rate of sewage flowing into the weighing container 320 is not uniform, sometimes fast or slow, even if the sewage in the weighing container 320 overflows, the sewage level in the weighing container 320 changes, the sewage level in the weighing container 320 cannot be kept constant, that is, the sewage volume in the weighing container 320 changes, and the measurement is not accurate. Especially in the scene of measuring concrete thick liquid weight, the weighing container 320 capacity is great, and the weight can reach tens tons when fully loaded, and the liquid level in the weighing container 320 changes slightly, also can lead to weighing container 20 weight to change greatly, leads to the sewage concentration measurement inaccurate. Specifically, when the flow rate of the sewage flowing into the weighing container 20 is not uniform, that is, when the flow rate is fast or slow, even if the sewage in the weighing container 320 is in an overflow state, because the sewage has tension, when the flow rate of the sewage flowing into the weighing container 320 is fast, the sewage does not overflow through the second overflow port 323 on the weighing container 320, even the liquid level exceeds the second overflow port 323, so that the liquid level of the sewage in the weighing container 320 rises, the liquid level of the sewage changes, and the measurement is inaccurate; similarly, when the flow rate of the sewage flowing into the weighing container 320 is slow, the liquid level of the sewage in the weighing container 320 is lower than that when the flow rate is fast, which also causes the change of the sewage level and inaccurate measurement.

In conclusion, the inventors found that the stability of the flow rate of the sewage flowing into the weighing container 320 has a great influence on the accuracy of the measurement result. According to the invention, the flow velocity of sewage from the flow stabilizing port 312 of the flow stabilizing container 310 is kept constant through the flow stabilizing container 310 which is in an overflow state in real time (continuously), and sewage with a constant flow velocity flows into the weighing container 320 which is in an overflow state in real time (continuously), so that the sewage liquid level in the weighing container 320 is almost kept in a constant state, and the liquid level is almost not changed, therefore, the sewage volume is almost kept unchanged, further, the weight of the weighing container 320 carrying the sewage can be accurately measured in real time continuously, and further, more accurate sewage concentration can be calculated.

In one example, as shown in fig. 5 and 6, the cross-sectional area of the flow stabilizing port 312 of the flow stabilizing container 310 is larger than that of the water outlet 322 of the weighing container 320, so that the flow of sewage flowing out of the flow stabilizing port 312 is larger than that of the sewage flowing out of the water outlet 322, the sewage in the weighing container 320 is always in an overflow state, and the sewage level is kept stable. In another example, the flow rate of sewage at the flow stabilizing port 312 of the flow stabilizing container 310 is greater than that at the water outlet 322, so that the flow rate of sewage flowing out of the flow stabilizing port 312 is greater than that flowing out of the water outlet 322, and therefore the sewage in the weighing container 320 is always in an overflow state, and the sewage level is kept stable. In yet another example, the cross-sectional area of the flow stabilizing port 312 of the flow stabilizing container 310 is larger than the cross-sectional area of the water outlet 322 of the weighing container 320, and the flow rate of sewage at the flow stabilizing port 312 of the flow stabilizing container 310 is larger than the flow rate of sewage at the water outlet 322, so that the flow rate of sewage flowing out of the flow stabilizing port 312 is larger than the flow rate of sewage flowing out of the water outlet 322, and therefore the sewage in the weighing container 320 is always in an overflow state, and the sewage level is kept stable. No matter which mode is adopted, the flow of the sewage flowing out of the flow stabilizing port 312 can be larger than the flow of the sewage flowing out of the water outlet 322, so that the sewage in the weighing container 320 is always in an overflow state, the liquid level of the sewage is kept stable, and the sewage can be continuously and accurately measured. For example: the flow of the steady flow port or the large-flow water pump can be roughly calculated according to the section of the steady flow port 312, so that the sewage in the steady flow container is ensured to be in an overflow state. The size of the section of the water outlet 322 can be set according to the size of the cross section of the flow stabilizing port 312, so that the section of the water outlet 322 is slightly smaller than the cross section of the flow stabilizing port 312. The method ensures that the inflow rate is large and the outflow rate is small. Or valves are arranged at the water outlets of all levels, and the water flow is controlled by adjusting the size of the valves.

In some embodiments, the second water inlet 321 of the weighing container 320 may be disposed at the top of the weighing container 320, the water outlet 322 may be disposed at the bottom of the weighing container 320, the second overflow port 323 may be disposed at a side wall of the weighing container 320, the second overflow port 323 is communicated with a second overflow pipe 324, and the sewage overflowing from the second overflow port 323 flows out via the second overflow pipe 324. For example, the weighing container 320 may have a substantially cylindrical shape, and the cylindrical weighing container 320 has an opening, which forms the second water inlet 321 of the weighing container 320, for receiving the sewage flowing out of the flow stabilizing port 312 of the flow stabilizer 310. The bottom of the cylindrical weighing container 320 forms a conical structure, a water outlet 322 is formed in the bottom of the conical structure, the water outlet 322 can be open, solid substances (adhesion substances) in sewage can be easily guided to the water outlet 322 smoothly by the conical structure, deposition is prevented, and the accuracy of sewage measurement is improved. The side wall of the cylindrical weighing container 320 can be provided with two second overflow ports 323 which are arranged oppositely, and each second overflow port 323 is communicated with a second overflow pipe 324. The second overflow port 323 may be rectangular, circular, or other shapes. The second overflow mouth 323 of rectangle compares in circular shape overflow mouth, and convenient the washing more, and the lower edge of rectangle overflow mouth is bigger than the lower edge of circular overflow mouth and liquid level contact scope, and the overflow effect is more obvious.

The inventor finds that if the sewage deposits in the weighing container 320, the monitoring of the sewage concentration is affected, and the measurement is inaccurate. According to the sewage monitoring device provided by the embodiment of the invention, the second water inlet 321 and the second water outlet 322 are respectively positioned at the top and the bottom of the weighing container 320, namely the second water inlet 321 and the second water outlet 322 are distributed up and down, most of sewage in the weighing container 320 can flow out through the second water outlet 322 by adjusting the size of the water outlet 322, and a small part of sewage flows out through the second overflow port 323, so that the deposition of fixed substances in the sewage is reduced or avoided to the maximum extent, the sewage in the weighing container 320 is always in a state of uniform concentration (density), and the sewage concentration obtained through final measurement and calculation is more accurate. Meanwhile, sewage flowing in the weighing container 320 can also reduce sewage deposition, and the sewage concentration is more uniform.

The inventor also found that solid matter adhering to the inner wall surface and the outer wall surface of the weighing container 320 also affects monitoring of the sewage concentration, resulting in inaccurate measurement. According to the sewage monitoring device provided by the embodiment of the invention, the second overflow port 323 is communicated with the second overflow pipe 324, so that the sewage overflowing from the second overflow port 323 flows out through the second overflow pipe 324, and the influence on the measurement precision caused by the fact that the sewage overflows to the outer wall surface of the weighing container 320 and adheres to the outer wall surface is avoided.

In one example, the inner wall of the weighing container 320 is smooth, such as the weighing container 320 made of stainless steel, to minimize or prevent solid matter in the sewage from adhering to the inner wall. In another example, the inner wall surface of the weighing container 320 may be provided with a smooth plastic plate, which also minimizes or prevents solid matter from adhering to the contaminated water. In yet another example, a release coating may also be applied to the inner wall surface of the weighing container 320.

In order to reduce the influence of the fixed substances attached or deposited to the weighing container 320 on the measurement, a vibration device may be provided on the weighing container 320 in addition to the above-described various ways, and the vibration device may be used to separate the solid substances attached to the surface of the weighing container 320. In the cylindrical weighing container 320, the solid substances on the surface of the weighing container 320 are separated by vibration, and the effect is more obvious.

In yet another example, a cleaning device, such as a spraying device 352, may be further added at the inlet 321 of the weighing container 320, and the inner wall of the weighing container 320 is washed by the spray head of the spraying device. For example, an annular cleaning pipeline 352 can be fixedly arranged on the outer peripheral wall of the bottom of the steady flow container 310, and the inner peripheral wall of the weighing container 320 is washed by a water spray nozzle on the annular cleaning pipeline 352, so that the influence of adhesion of solid matters on the weighing precision of the weighing container 320 is avoided. A spray head 350 may also be provided at the inlet of the ballast 310 to flush the ballast 310. Furthermore, the spraying device 350 and the annular cleaning pipeline 352 are communicated through the same clean water pipeline 351, so that the weighing container 320 and the flow stabilizing container 310 can be washed simultaneously, and the washing efficiency is improved.

In some embodiments, the flow stabilizing port 312 of the flow stabilizing container 310 is disposed at the bottom of the flow stabilizing container 310, the first water inlet 311 and the first overflow port 313 are disposed at the side wall of the flow stabilizing container 310, the first overflow port 313 is communicated with a first overflow pipe 314, and the sewage flowing out of the first overflow port 313 flows out via the first overflow pipe 314. Specifically, the flow-stabilizing container 310 may be disposed above the weighing container 320, for example, both the flow-stabilizing container 310 and the weighing container 320 are supported by a bracket. The steady flow container 310 may also be cylindrical and the bottom may also be a conical structure to avoid the deposition of stationary substances in the wastewater. The top of the cylindrical flow stabilizing container 10 can be of an open structure, the first water inlet 11 is arranged on the side wall of the flow stabilizing container 10, the top of the flow stabilizing container 10 is prevented from being open, and a cleaning device, such as a spraying device, is conveniently arranged.

The flow stabilizing port 312 of the flow stabilizing container 310 may be located at an upper middle position of the top opening (the second water inlet 21) of the weighing container 320, corresponding to the water outlet 322 of the weighing container 320. During the cleaning of the flow stabilizing container 310 by the cleaning device at the top of the flow stabilizing container 10, the weighing container 320 is cleaned by the cleaning water discharged from the flow stabilizing port 312 of the flow stabilizing container 310.

In some embodiments, the weigh scale may weigh the weigh receptacle 320 and the wastewater therein via the weight monitor 325. In one example, the weighing receptacle 320 is suspended from the support 330 by the weight monitor 25, and weighing measurements are performed by suspending the weighing receptacle 320.

In another example, a weight monitor 325 is disposed between the stand and the weighing receptacle 320, and weighing measurement is achieved by the way the weight monitor 325 supports the weighing receptacle 320. Specifically, three supporting blocks can be uniformly distributed on the peripheral wall of the weighing container 320, the weight monitors 325 are arranged between the support and each supporting block, and the weighing container 320 is supported by the weight monitors 325 uniformly distributed, so that the weighing container is more stably supported and the weighing measurement is more accurate compared with a suspension mode.

The weighing of the weighing container 320 and the sewage therein according to the present invention is not limited to the above-mentioned manner, and may be measured by being supported at the bottom of the weighing container 320, or other possible manners are possible.

In some embodiments, the first overflow pipe 314 communicated with the first overflow port 313 of the steady flow container 310 and the second overflow pipe 324 communicated with the second overflow port 323 of the weighing container 320 are both communicated with the blending tank 30, the first water inlet 322 of the steady flow container 310 is communicated with the blending tank 30 through the water inlet pipe 315, and the third water pump 32 connected with the water inlet pipe 315 is arranged in the blending tank 30 and used for pumping the sewage in the blending tank 30 into the steady flow container 310.

Specifically, the third water pump 32 continuously pumps the sewage in the blending tank 30 into the steady flow container 310 through the water inlet pipe 315, the sewage flows in from the first water inlet 322 and flows out through the steady flow port 312, because the flow rate of the sewage flowing into the first water inlet 322 of the steady flow container 310 is greater than the flow rate of the sewage flowing out from the steady flow port 312, the sewage level in the steady flow container 310 can reach the first overflow port 313 to overflow, and the overflowing sewage flows back into the blending tank 30 through the first overflow pipe 314, and at this time, the sewage in the steady flow container 310 can be continuously in an overflow state, so that the sewage flowing out from the steady flow port 312 can be kept at a constant flow rate in real time. Then, the sewage flowing out of the steady flow port 312 at a constant flow rate enters the weighing container 320 from the second inlet 21 and flows out of the water outlet 322 of the weighing container 320, the sewage level in the weighing container 320 can reach the second overflow port 323 to overflow because the flow rate of the sewage flowing out of the steady flow port 312 is greater than the flow rate of the sewage flowing out of the water outlet 322 of the weighing container 320, and the overflowing sewage flows back to the blending tank 30 through the second overflow pipe 324, at this time, the sewage in the weighing container 320 can be in an overflowing state continuously, and the sewage flowing out of the steady flow port 312 flows into the weighing container 320 at a constant flow rate, so that the sewage level in the weighing container 320 is in an almost stable state and cannot be overlooked, the sewage volume in the weighing container 320 can be kept at a constant value continuously, the measured weight of the weighing container 320 and the sewage in the overflowing state is more accurate, and the calculated sewage concentration is more accurate. Therefore, the sewage monitoring device can accurately measure the sewage in the blending tank 30 circularly and uninterruptedly through the scheme. In addition, most of the sewage flowing into the weighing container 320 from the top second water inlet flows out of the bottom water outlet 322, a small amount of sewage overflows from the second overflow port 323, the sewage in a flowing state is hardly deposited in the weighing container 320, the concentration (density) of the sewage in the weighing container 320 is more uniform, and the measurement accuracy is further improved. In addition, in order to further avoid the influence of solid matters attached to the inner and outer walls of the weighing container 320 on the measurement precision of the sewage concentration, the weighing container 320 adopts various modes such as a stainless steel plate, a smooth plastic plate additionally arranged or an anti-sticking layer coated on the inner wall surface to reduce the influence of the attachment on the inner wall surface of the weighing container 320 to the measurement precision to the maximum extent, and the overflow sewage is guided into the blending tank 30 by a mode of communicating the second overflow port 323 with the second overflow pipe 324 to eliminate the influence of the attachment on the outer wall surface of the weighing container 320 on the measurement precision.

Further, the flow stabilizing port 312 at the bottom of the flow stabilizing container 310 can extend into the weighing container 320 and is located below the second overflow port 323, so that when the weighing container 320 is in an overflow state, the flow stabilizing port 312 is located below the sewage liquid level, thereby reducing the impact of the sewage flowing out of the flow stabilizing port 312 on the sewage liquid level in the weighing container 20, ensuring the sewage liquid level to be constant, and improving the sewage concentration measurement accuracy.

The blending tank 30 is connected with a clear water replenishing pipe 341 for replenishing clear water into the blending tank 230 when the water amount in the blending tank 30 is insufficient.

In summary, the sewage concentration in the blending tank 30 can be accurately monitored in real time by the sewage monitoring device, the sewage monitoring device 31 can be used for monitoring the sewage concentrations in the raw slurry tank 10 and the thick slurry tank 20, and the blending can be rapidly performed according to the sewage concentration values in the sewage tanks. Further, through separator (like swirler 21), can separate the sewage in magma pond 10, thick pulp pond 20 and the allotment pond 30 and become the sewage of low concentration and the sewage of high concentration, the sewage of high concentration stays in thick pulp pond 20, the sewage of low concentration is carried as required, for example carry former pulp pond 10, allotment pond 20, promptly, can allocate the dilution to self sewage in the magma pond 10 through swirler 21, also can allocate the dilution to self sewage in the allotment pond 20, cooperation sewage monitoring devices 31 accurate measurement, in order to reach the purpose of the required sewage concentration of allotment.

In the former thick liquid pond 10, thick liquid pond 20, allotment pond 30 and the finished product pond 40, can set up agitating unit, the stirring is moved in the limit of allotment, and the sewage concentration who surveys like this is more accurate.

The invention also provides a sewage blending method applied to the sewage blending device in any of the above embodiments, as shown in fig. 3 and 4, the method includes: step S11 and step S12.

In step S11, the sewage concentration in the raw pulp tank 10 is detected;

in step S12, if the concentration of the sewage in the raw pulp tank is lower than a first set concentration, the sewage in the raw pulp tank is delivered to the blending tank through a first water pump in the raw pulp tank.

During the use, can detect the sewage in the magma pond 10 through sewage monitoring devices 31 earlier, if the sewage concentration in the magma pond 10 is less than when first settlement concentration, the explanation can directly utilize, can directly carry the deployment pond with the sewage in the magma pond 10 through first water pump 11 this moment.

The method further comprises the following steps: the sewage concentration in the blending tank 30 is monitored in real time.

According to the sewage allocation method, the sewage in the primary pulp tank is conveyed into the allocation tank through the first water pump, the sewage concentration of the allocation tank is detected in real time through the sewage monitoring device, and allocation is performed while detection is performed.

In some embodiments, if the concentration of the sewage in the primary pulp tank is lower than the first set concentration, the tank truck may be flushed with the sewage in the primary pulp tank 10, thereby increasing the concentration of the sewage in the primary pulp tank 10. This reduces the use of fresh water when flushing the tanker.

In some embodiments, the method further comprises: and step S13.

In step S13, if the concentration of the sewage in the raw pulp tank is higher than the first set concentration, the first water pump is communicated with the liquid inlet of the cyclone, and the overflow port of the cyclone is communicated with the raw pulp tank and/or the thick pulp tank, the sewage in the raw pulp tank is conveyed to the cyclone through the first water pump, so that the sewage from the raw pulp tank is conveyed to the raw pulp tank and/or the blending tank through the low-concentration sewage discharged from the overflow port of the cyclone, and the sewage from the raw pulp tank through the high-concentration sewage settled by the cyclone is left in the thick pulp tank.

If the sewage concentration in the primary pulp tank is high, the sewage concentration in the primary pulp tank needs to be reduced, and high-concentration sewage in the primary pulp tank can be changed into low-concentration sewage in a cyclone physical sedimentation mode, so that the sewage returns to the primary pulp tank, and the sewage in the primary pulp tank is blended. And/or changing high-concentration sewage from the primary pulp tank into low-concentration sewage, conveying the sewage into the blending tank, and blending the sewage in the blending tank.

In some embodiments, the method further comprises: when the sewage concentration in the primary pulp tank 10 is equal to or higher than a set value, the tank car can be cleaned by clean water, so that the sewage concentration in the primary pulp tank 10 is reduced. Then the sewage in the primary pulp tank enters a blending tank for further blending. The concentration of the primary pulp tank is increased to be close to the set value, and then the primary pulp tank enters the blending tank, so that the sewage blending speed is increased.

In some embodiments, step S13 comprises:

detecting the sewage liquid level in the blending tank through a third liquid level detection device in the blending tank;

if sewage concentration in the magma pond is higher than when first settlement concentration, just when sewage liquid level in the allotment pond is higher than the third settlement liquid level, make the inlet of swirler with first water pump intercommunication, and the overflow mouth of swirler with the magma pond intercommunication, through first water pump will sewage in the magma pond is carried extremely the swirler, so that come from sewage in the magma pond via swirler overflow mouth exhaust low concentration sewage is carried extremely the magma pond. That is to say, the sewage concentration in the primary pulp tank 10 is high, the liquid level of the blending tank 30 is high, the blending tank 30 does not need to enter sewage, the high-concentration sewage from the primary pulp tank is settled and separated, and the low-concentration sewage is returned to the primary pulp tank 10 through the cyclone 21, so that the sewage in the primary pulp tank 10 is blended.

If sewage concentration in the magma pond is higher than when first settlement concentration, and when the sewage liquid level in the allotment pond is less than the third settlement liquid level, make the inlet of swirler with first water pump intercommunication, and the overflow mouth of swirler with the allotment pond intercommunication, will through first water pump sewage in the magma pond is carried to the swirler, so that come from the sewage in the magma pond via swirler overflow mouth exhaust low concentration sewage is carried to the allotment pond. That is to say, the sewage concentration in the primary pulp tank 10 is high, and the liquid level of the blending tank 30 is high, and the blending tank 30 does not need to feed sewage, and the sewage is settled by the cyclone 21, so that the low-concentration sewage from the settling separation of the high-concentration sewage in the primary pulp tank returns to the primary pulp tank 10, and the sewage in the primary pulp tank 10 is blended.

In some embodiments, the method further comprises: detecting the sewage concentration in the blending tank; if the sewage concentration in the blending tank is lower than the set standard concentration, the sewage in the thick slurry tank is conveyed to the blending tank through a second water pump in the thick slurry tank until the sewage concentration in the blending tank reaches the set standard concentration, so that the high-concentration sewage in the thick slurry tank 20 is utilized, and the zero discharge of the sewage is realized.

In some embodiments, the method further comprises: detecting the sewage liquid level in the thick slurry tank; if the liquid level of the sewage in the thick slurry tank is higher than a second set liquid level, communicating a liquid inlet of the cyclone with the second water pump, and communicating an overflow port of the cyclone with the blending tank, so that the low-concentration sewage discharged from the sewage in the thick slurry tank through the overflow port of the cyclone is conveyed to the blending tank; and/or detecting the sewage liquid level in the primary pulp tank; if sewage liquid level in the thick liquid pool is higher than when the second is set for the liquid level, just sewage liquid level in the magma pond is less than when the first liquid level of setting for, then make the inlet of swirler with second water pump intercommunication, just the overflow mouth of swirler with magma pond intercommunication, so that come from sewage in the thick liquid pool via swirler overflow mouth exhaust low concentration sewage is carried extremely former magma pond.

In some embodiments, the method further comprises: detecting the sewage concentration in the blending tank; if the concentration in the blending tank is higher than the preset standard concentration, a third water pump in the blending tank is communicated with a liquid inlet of the cyclone, an overflow port of the cyclone is communicated with the stock slurry tank and/or the blending tank, so that low-concentration sewage discharged from the overflow port of the cyclone in the blending tank is conveyed to the stock slurry tank and/or the blending tank.

It is further understood that the use of "a plurality" in this disclosure means two or more, and other terms are analogous. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. The singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It will be further understood that the terms "first," "second," and the like are used to describe various information and that such information should not be limited by these terms. These terms are only used to distinguish one type of information from another and do not denote a particular order or importance. Indeed, the terms "first," "second," and the like are fully interchangeable. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure.

It is further to be understood that while operations are depicted in the drawings in a particular order, this is not to be understood as requiring that such operations be performed in the particular order shown or in serial order, or that all illustrated operations be performed, to achieve desirable results. In certain environments, multitasking and parallel processing may be advantageous.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is to be limited only by the scope of the appended claims.

Claims

1. The utility model provides a sewage blending device which characterized in that includes:

a raw pulp tank;

a blending pool;

the sewage monitoring device is communicated with the blending tank and is used for detecting the sewage concentration in the blending tank in real time;

when the sewage concentration in the primary pulp tank is lower than a first set concentration, the sewage in the primary pulp tank is conveyed into the blending tank.

2. The sewage blending device of claim 1,

former thick liquid pond with but sewage monitoring devices alternative intercommunication, sewage monitoring devices still is used for detecting the sewage concentration in the magma pond.

3. The sewage blending device of claim 2, further comprising:

a thick slurry tank;

the liquid inlet of the separation device is selectively communicated with the primary pulp pool, and the first outlet of the separation device is selectively communicated with the primary pulp pool; and/or the first outlet of the separation device is in selective communication with the blending tank;

wherein, when sewage concentration in the magma pond is higher than or equal to first settlement concentration, separator's inlet with the magma pond intercommunication, and separator's first export with the magma pond and/or the allotment pond intercommunication, through sewage in the magma pond is carried to separator, so that come from sewage in the magma pond via the exhaust low concentration sewage of separator's first export is carried to the magma pond and/or the allotment pond, and come from sewage in the magma pond via the high concentration sewage of separator separation follow in separator's the second export flow direction in the magma pond.

4. The sewage blending device of claim 3,

a third liquid level detection device is arranged in the blending tank and used for detecting the sewage liquid level in the blending tank;

when the sewage concentration in the primary pulp tank is higher than or equal to the first set concentration and the sewage liquid level in the blending tank is higher than a third set liquid level, a liquid inlet of the separation device is communicated with a first water pump in the primary pulp tank, a first outlet of the separation device is communicated with the primary pulp tank, and the sewage in the primary pulp tank is conveyed to the separation device through the first water pump so that the low-concentration sewage discharged from the sewage in the primary pulp tank through the first outlet of the separation device is conveyed to the primary pulp tank;

the sewage concentration in the magma pond is higher than or equal to when first settlement concentration, just when the sewage liquid level in the allotment pond is less than the third settlement liquid level, separator's inlet with first water pump intercommunication in the magma pond, and separator's first export with the allotment pond intercommunication, through first water pump will sewage in the magma pond is carried extremely separator, so that come from the sewage in the magma pond via separator's first export exhaust low concentration sewage carry extremely the allotment pond.

5. The sewage blending device of claim 3,

the thick slurry tank is selectively communicated with the blending tank;

when the sewage monitoring device detects that the sewage concentration in the blending tank is lower than a set standard concentration, the sewage in the thick slurry tank is conveyed to the blending tank.

6. The sewage blending device of claim 3,

the thick slurry tank is also selectively communicated with the sewage monitoring device, and the sewage monitoring device is also used for detecting the sewage concentration in the thick slurry tank;

the thick slurry tank is selectively communicated with a liquid inlet of the separation device;

wherein, when the sewage concentration in the thick slurry pond is less than the second and sets for concentration, the thick slurry pond with separator's inlet intercommunication, separator's first export with the blending tank and/or the magma pond intercommunication, sewage in the thick slurry pond carry to separator, so that come from sewage in the thick slurry pond via the low concentration sewage of separator's first export carry to the blending tank and/or the magma pond, and come from sewage in the thick slurry pond via separator separates high concentration sewage and follow in separator's the second export flow direction in the thick slurry pond.

7. The sewage blending device of claim 3,

the blending tank is selectively communicated with a liquid inlet of the separation device;

when the concentration in the blending tank is higher than the preset standard concentration, the blending tank is communicated with the liquid inlet of the separation device, and the first outlet of the separation device is communicated with the raw pulp tank and/or the blending tank, so that the low-concentration sewage discharged from the first outlet of the separation device in the blending tank is conveyed to the raw pulp tank and/or the blending tank.

8. The sewage blending device according to any of claims 3 to 7, further comprising:

a settling vessel provided with a top inlet, a bottom outlet, and a drain between the top inlet and the bottom outlet;

the first outlet of the separation device is communicated with the top inlet, the bottom outlet is communicated with the thick slurry tank, and the discharge port is communicated with the raw slurry tank and/or the blending tank.

9. A sewage disposal method applied to the sewage disposal apparatus according to any one of claims 1 to 8, the method comprising:

detecting the sewage concentration in the primary pulp tank;

if the concentration of the sewage in the primary pulp tank is lower than a first set concentration, conveying the sewage in the primary pulp tank to the blending tank;

if sewage concentration in the magma pond is higher than first settlement concentration, make former magma pond and separator's inlet intercommunication to and make separator's first export and magma pond and/or thick liquid pond intercommunication, sewage in the magma pond is carried extremely separator, so that come from sewage in the magma pond via separator's first export exhaust low concentration sewage is carried extremely former magma pond and/or allotment pond, and come from sewage in the magma pond via separator's high concentration sewage follow separator's separation high concentration export flow direction in the thick liquid pond.

10. The sewage blending method of claim 9, further comprising:

detecting the sewage concentration in the blending tank;

and if the sewage concentration in the blending tank is lower than the set standard concentration, conveying the sewage in the thick slurry tank to the blending tank until the sewage concentration in the blending tank reaches the set standard concentration.

11. The sewage blending method of claim 9, further comprising:

detecting the sewage concentration in the blending tank;

if the concentration in the blending tank is higher than the preset standard concentration, the blending tank is communicated with the liquid inlet of the separation device, and the first outlet of the separation device is communicated with the raw pulp tank and/or the blending tank, so that the low-concentration sewage discharged from the first outlet of the separation device in the blending tank is conveyed to the raw pulp tank and/or the blending tank.