Online cleaning device for clarification tank inclined plate

Abstract

The utility model relates to an online cleaning device for an inclined plate of a clarification tank. The online cleaning device comprises the clarification tank, a clear water area arranged on the upper side in the clarification tank, the inclined plate and an air compressor, the inclined plate is arranged in the clear water area, and the air compressor is arranged above the clarification tank; a first air inlet pipe, a second air inlet pipe and a third air inlet pipe are arranged on the air compressor; the first air inlet pipe, the second air inlet pipe and the third air inlet pipe are connected below the inclined plate; according to the device, the air outlet pipe of the air compressor is connected to the bottom of the inclined plate of the clarification tank, accumulated sludge on the inclined plate is washed and removed through air blowing disturbance, the inclined plate of the clarification tank is kept in a clean state, on-line cleaning of the inclined plate of the clarification tank can be achieved on the premise that the clarification tank is not stopped, and sludge on the inclined plate of the clarification tank is cleaned away; the problems that the inclined plate of the clarification tank is not cleaned in time and the equipment needs to be manually cleaned after being stopped can be solved, and stable operation of the clarification tank and qualified effluent quality are ensured.

Description

Technical Field

[0001] The utility model relates to coagulation and clarification equipment for water treatment in a thermal power plant, in particular to an online cleaning device for inclined plates of a clarifier tank. Background Art

[0002] Coagulation and clarification treatment is the first treatment process of the boiler feed water treatment system of a power plant. Its purpose is to remove hardness, alkalinity, organic matter, microorganisms, colloids, suspended matter, mud and sand and other substances in the raw water through coagulation, flocculation, clarification and other processes. The clear water area of ​​the coagulation and clarification equipment is generally equipped with inclined plates to improve the sedimentation performance of the sludge, reduce the amount of flocculants in the clear water area, and play a better role in purifying the water quality.

[0003] After the clarifier has been running for a period of time, a large amount of sludge will accumulate on the inclined plate. If the sludge on the inclined plate is not cleaned, it will cause two problems. First, the sludge on the inclined plate is easily carried away by the rising water flow, affecting the effluent quality; second, the sludge on the inclined plate increases in weight, which can easily lead to the collapse and damage of the inclined plate. The conventional treatment method is to stop the clarifier after it has been running for a period of time and flush the inclined plate manually.

[0004] When manually cleaning the inclined plate, the clarifier needs to be shut down for 2 to 3 days, during which the water production is affected, and sludge will be discharged when the water is released. After the clarifier is put into operation again, it takes a certain process and time to cultivate the sludge and stabilize the clarifier. During this period, the water quality is unqualified and unstable. Therefore, it is very necessary to adopt a convenient way to clean the inclined plate of the clarifier. Utility Model Content

[0005] In order to overcome the problems existing in the above-mentioned existing cleaning of the inclined plates of clarifiers, the purpose of the utility model is to provide an online cleaning device for the inclined plates of clarifiers to solve the problems that the clarifier is shut down for a long time during the cleaning of the inclined plates and cannot produce water, and the water quality of the clarifier is unstable in the short term after it is put into operation, and the inclined plates need to be cleaned manually.

[0006] The utility model is realized by the following technical solutions:

[0007] An online cleaning device for a clarifier inclined plate, comprising:

[0008] A clarifier, a clear water area arranged on the upper inner side of the clarifier, an inclined plate and an air compressor;

[0009] The inclined plate is arranged in the clear water area, and the air compressor is arranged above the clarification tank;

[0010] The air compressor is provided with a first air inlet pipe, a second air inlet pipe and a third air inlet pipe;

[0011] The first air intake pipe, the second air intake pipe and the third air intake pipe are connected to the lower side of the inclined plate;

[0012] Preferably, the first air intake pipe, the second air intake pipe and the third air intake pipe are symmetrically fixed at the bottom of the inclined plate.

[0013] Preferably, the clarification tank comprises a primary mixing and reaction zone, a secondary mixing and reaction zone and a clear water zone;

[0014] The interior of the clarifier is divided into a primary mixing and reaction zone in the lower middle part, a secondary mixing and reaction zone in the upper middle part, and clear water zones in the upper parts of both sides by steel plates, and the middle of the primary mixing and reaction zone is connected with the secondary mixing and reaction zone.

[0015] Preferably, an inlet pipe and an outlet pipe are respectively provided on both sides of the clarification tank, wherein the inlet pipe is connected to a primary mixing and reaction zone; and the outlet pipe is connected to a clear water zone.

[0016] Preferably, the outlet pipeline is provided with an outlet valve and an outlet discharge valve, connected to the water point via the outlet valve, and connected to the discharge pool via the outlet discharge valve.

[0017] Preferably, a stirrer is also provided in the clarification tank, and a stirring head of the stirrer extends into the primary mixing and reaction zone.

[0018] Preferably, the clarification tank is a circular structure.

[0019] Preferably, the clear water area is a circular groove structure.

[0020] Preferably, sieve holes are provided on the bottom plate of the clean water area.

[0021] Preferably, a sludge discharge pipe is provided at the bottom of the clarification tank.

[0022] Compared with the prior art, the utility model has the following beneficial technical effects:

[0023] The utility model discloses an online cleaning device for an inclined plate of a clarifier, comprising a clarifier, a clear water area arranged on the upper inner side of the clarifier, an inclined plate and an air compressor; the inclined plate is arranged in the clear water area, and the air compressor is arranged above the clarifier; a first air inlet pipe, a second air inlet pipe and a third air inlet pipe are arranged on the air compressor; the first air inlet pipe, the second air inlet pipe and the third air inlet pipe are connected to the lower part of the inclined plate; the device connects an air outlet pipe of the air compressor to the bottom of the inclined plate of the clarifier, removes the accumulated mud on the inclined plate by flushing with aeration disturbance, and keeps the inclined plate of the clarifier in a clean state; the online cleaning of the inclined plate of the clarifier can be realized without stopping the operation of the clarifier, and the sludge on the inclined plate of the clarifier can be cleaned, thereby ensuring the safe operation of the inclined plate of the clarifier, the stable water quality of the effluent from the clarifier, and the safe, economical and reliable operation of the subsequent water treatment equipment can be ensured; the problems of untimely cleaning of the inclined plate of the clarifier and manual cleaning after the equipment needs to be stopped can be solved, and the stable operation of the clarifier and the qualified water quality of the effluent can be ensured.

[0024] Furthermore, the utility model can perform online cleaning at any time according to the mud accumulation situation of the inclined plate of the clarifier, and the online cleaning time is short, which can save the time for manual cleaning of the inclined plate of the clarifier and the time for putting the clarifier into operation, and greatly reduce the workload of the operating personnel.

[0025] Furthermore, the device of the utility model can be used for all kinds of clarifiers containing inclined plates, is suitable for the design and application of new clarifier systems, and is also suitable for the technical transformation of old clarifier systems.

[0026] Furthermore, the utility model does not change the original system equipment, and only installs an air compressor on the top of the clarifier, leads out an air inlet pipe, and evenly fixes it on the bottom of the inclined plate.

[0027] Furthermore, the online cleaning device for the inclined plate of the clarifier of the utility model has a simple implementation process, good application effect, and is easy to realize. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of the online cleaning device for the inclined plate of the clarifier of the utility model;

[0029] Figure 2 is a position relationship diagram of the air intake pipe and the clean water area 5;

[0030] In the figure: clarification tank 1, inlet pipe 2, outlet valve 3, outlet discharge valve 4, clean water area 5, inclined plate 6, air compressor 7, first air inlet pipe 8, second air inlet pipe 9, third air inlet pipe 10. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below in conjunction with specific embodiments, which are intended to explain the present invention rather than to limit it.

[0032] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0033] like Figure 1 As shown, the utility model is an online cleaning device for the inclined plate of a clarifier, which includes a clarifier 1, an inlet pipe 2, an outlet valve 3, an outlet discharge valve 4, and a clear water area 5 inside the clarifier, an inclined plate 6 in the clear water area, an air compressor 7, a first air inlet pipe 8, a second air inlet pipe 9, and a third air inlet pipe 10. The clarifier 1 is circular, and incoming water enters from the inlet pipe 2, reaches the clear water area 5 after coagulation and clarification treatment, and the clarified water rises to the outlet and reaches the water use point through the outlet valve 3. The outlet discharge valve 4 is arranged on the outlet pipeline; the air compressor 7 is arranged above the mechanical acceleration clarifier 1, as shown in FIG. Figure 2 As shown, the first air inlet pipe 8, the second air inlet pipe 9, and the third air inlet pipe 10 are connected to the bottom of the inclined plate 6 and symmetrically fixed at the bottom of the inclined plate 6. The inclined plate of the clarifier can be cleaned online without stopping the clarifier, and the sludge on the inclined plate of the clarifier can be cleaned to ensure the safe operation of the inclined plate of the clarifier, the stable water quality of the effluent from the clarifier, and the safe, economical and reliable operation of the subsequent water treatment equipment. And it can be cleaned online at any time according to the sludge accumulation of the inclined plate of the clarifier. The online cleaning time is short, which can save the time for manual cleaning of the inclined plate of the clarifier and the time for the commissioning of the clarifier, and greatly reduce the workload of the operating personnel.

[0034] The clarification tank 1 is circular, and its interior is divided into a primary mixing and reaction zone in the lower middle part, a secondary mixing and reaction zone in the upper middle part, and clear water zones in the upper parts of both sides by steel plates. The middle of the primary mixing and reaction zone and the secondary mixing and reaction zone are connected, and the stirring head of the stirrer extends into the primary mixing and reaction zone to achieve the effect of stirring the primary mixing and reaction zone; the inlet pipe 2 is connected to the primary mixing and reaction zone, and the outlet pipe is connected to the clear water zone 5. The incoming water reaches the primary mixing and reaction zone from the inlet pipe 2, enters the secondary mixing and reaction zone through the lifting stirrer, reaches the clear water zone after mixing and flocculation, and the sludge settles to the sieve holes at the bottom of the clear water zone 5 and is discharged, and the clarified water rises to the outlet pipe and reaches the water use point through the outlet valve 3.

[0035] The operating method of the online cleaning device for the inclined plate of a clarifier is as follows:

[0036] 1) Preparation before online cleaning of the clarifier inclined plate

[0037] The output of the clarifier 1 is adjusted to 1 / 3 of the design value, and the air compressor 7 is powered on and in standby mode.

[0038] 2) Online cleaning of the clarifier inclined plate

[0039] Close the outlet valve 3 of the clarifier 1, open the outlet discharge valve 4 of the clarifier 1, start the air compressor 7, aerate the bottom of the inclined plate through the first air inlet pipe 8, the second air inlet pipe 9, and the third air inlet pipe 10 for 3 minutes, turn off the air compressor 7 to stop aeration for 7 minutes, and repeat opening and closing the air compressor 7. The specific number of times is based on the cleanliness of the inclined plate of the clarifier. The initial number of opening and closing the air compressor 7 is set to three times.

[0040] 3) Clarification tank commissioning

[0041] After the online cleaning of the clarifier inclined plate is completed and the turbidity at the clarifier outlet meets the standard requirements, the outlet discharge valve 4 of the clarifier 1 is closed, and the outlet valve 3 of the clarifier 1 is opened to gradually increase the output of the clarifier 1 to reach the required value.

[0042] This device can be used for all types of clarifiers with inclined plates. It is suitable for the design and application of new clarifier systems, and is also suitable for the technical transformation of old clarifier systems. It does not change the original system equipment, but only installs an air compressor on the top of the clarifier, leads out the air inlet pipe, and evenly fixes it on the bottom of the inclined plate. The implementation process is simple, the application effect is good, and it is easy to achieve.

[0043] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0044] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0046] The above description is only a preferred embodiment of the utility model and does not impose any form of limitation on the utility model. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. An online cleaning device for a clarifier inclined plate, characterized in that: include, The inclined plate (6), the air compressor (7), the clarifier and the clear water area arranged on the upper side of the clarifier, The inclined plate (6) is arranged in the clear water area (5), and the air compressor (7) is arranged above the clarification tank (1); The air compressor (7) is provided with a first air intake pipe (8), a second air intake pipe (9) and a third air intake pipe (10); The first air intake pipe (8), the second air intake pipe (9) and the third air intake pipe (10) are connected to the lower part of the inclined plate (6).

2. The online cleaning device for the inclined plate of a clarifier according to claim 1, characterized in that: The first air intake pipe (8), the second air intake pipe (9) and the third air intake pipe (10) are symmetrically fixed at the bottom of the inclined plate (6).

3. The online cleaning device for the inclined plate of a clarifier according to claim 1, characterized in that: The clarification tank (1) comprises a primary mixing and reaction zone, a secondary mixing and reaction zone and a clear water zone (5); The interior of the clarification tank (1) is divided into a primary mixing and reaction zone in the lower middle part, a secondary mixing and reaction zone in the upper middle part, and clear water zones (5) in the upper parts of both sides by steel plates, and the middle of the primary mixing and reaction zone is connected to the secondary mixing and reaction zone.

4. The online cleaning device for the inclined plate of a clarifier according to claim 3, characterized in that: An inlet pipe (2) and an outlet pipe are respectively arranged on both sides of the clarification tank (1); the inlet pipe (2) is connected to a primary mixing and reaction zone; and the outlet pipe is connected to a clear water zone (5).

5. The online cleaning device for the inclined plate of a clarifier according to claim 4, characterized in that: The outlet pipeline is provided with an outlet valve (3) and an outlet discharge valve (4), and is connected to a water point via the outlet valve (3) and is connected to a discharge pool via the outlet discharge valve (4).

6. The online cleaning device for the inclined plate of a clarifier according to claim 3, characterized in that: The clarification tank (1) is also provided with a stirrer, and the stirring head of the stirrer extends into the primary mixing and reaction zone.

7. The online cleaning device for the inclined plate of a clarifier according to claim 1, characterized in that: The clarification tank (1) is a circular structure.

8. The online cleaning device for the inclined plate of a clarifier according to claim 1, characterized in that: The clear water area (5) is a circular groove structure.

9. The online cleaning device for the inclined plate of a clarifier according to claim 1, characterized in that: The bottom plate of the clean water area (5) is provided with sieve holes.

10. The online cleaning device for the inclined plate of a clarifier according to claim 1, characterized in that: A mud discharge pipe is provided at the bottom of the clarification tank (1).

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