Integrated water treatment sedimentation tank device

Abstract

The invention relates to the technical field of sewage treatment, in particular to an integrated water treatment sedimentation tank device which comprises a powdered carbon contact area, a coagulation sand adding area, a flocculation reaction tank, an inclined plate sedimentation tank and a residual sludge area which are sequentially communicated, powdered activated carbon is added into the powdered carbon contact area, and a coagulant and fine sand are added into the coagulation sand adding area. A water outlet is formed in a clear water area at the upper part of the inclined plate sedimentation tank, and a sludge outlet is formed in a sedimentation area at the lower part of the inclined plate sedimentation tank; and the residual sludge area is communicated with a sludge outlet of the inclined plate sedimentation tank. Powdered activated carbon in the powdered carbon contact area adsorbs dissolvable micromolecules and organic phosphorus which are difficult to degrade in water, fine sand in the coagulation sand adding area overcomes the defect that the removal effect of suspended solids in a traditional coagulation sedimentation tank and an efficient sedimentation tank is poor, pollutants form floccules through a polymeric flocculant in the flocculation reaction tank, the floccules are separated in the inclined plate sedimentation tank, and the pollutants in the flocculation reaction tank are recycled. And finally, the water discharged from the water outlet can meet the discharge standards of most sewage plants without adding subsequent filtering treatment facilities.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to an integrated water treatment sedimentation tank device. Background Art

[0002] The rising velocity of traditional coagulation sedimentation tanks is generally 2~4m / h, which occupies a very large area. In the current situation where every inch of land is valuable, it has been gradually eliminated. High-efficiency sedimentation tanks effectively combine mixing, flocculation and sedimentation into one structure to meet the removal of some suspended solids (SS), chemical oxygen demand (COD) of small soluble molecules that are difficult to degrade, and total phosphorus (TP) in water.

[0003] The existing high-efficiency sedimentation tanks generally have an upward flow rate of 8m / h through sludge return. Although the floor area is more than twice that of the traditional coagulation sedimentation tank, the floor area is still large and is not suitable for integrated water treatment equipment. In addition, the traditional coagulation sedimentation tank and high-efficiency sedimentation tank have limited treatment effects on SS, and have poor removal effects on small molecules of COD and organic phosphorus that are difficult to degrade in water. It is difficult to meet the increasingly stringent discharge standards of sewage treatment plants. Advanced oxidation and membrane filtration and other process units are often required in the treatment process, which is expensive. Summary of the invention

[0004] The present invention provides an integrated water treatment sedimentation tank device, which is used to solve the above-mentioned defects existing in the traditional coagulation sedimentation tank and the high-efficiency sedimentation tank in the prior art.

[0005] The present invention provides an integrated water treatment sedimentation tank device, comprising a powdered carbon contact zone, a coagulation and sand adding zone, a flocculation reaction tank, an inclined plate sedimentation tank and a residual sludge zone, wherein the powdered carbon contact zone is provided with a water inlet for receiving incoming water to be treated, and powdered activated carbon is added to the powdered carbon contact zone; the coagulation and sand adding zone is connected to the powdered carbon contact zone, and a coagulant and fine sand are added to the coagulation and sand adding zone; the flocculation reaction tank is connected to the coagulation and sand adding zone, and a polymer flocculant is added to the flocculation reaction tank; the inclined plate sedimentation tank is connected to the flocculation reaction tank, and the inclined plate sedimentation tank comprises an upper clear water zone and a lower sedimentation zone, the upper clear water zone is provided with a water outlet, and the lower sedimentation zone is provided with a mud outlet; the residual sludge zone is connected to the mud outlet of the inclined plate sedimentation tank through a pipeline.

[0006] According to an integrated water treatment sedimentation tank device provided by the present invention, a connecting pipeline between the mud outlet of the inclined plate sedimentation tank and the residual sludge area is provided with a hydrocyclone and a secondary recovery tank, the hydrocyclone and the secondary recovery tank are both provided with an inlet, a sedimentation outlet and a sludge outlet, the inlet of the hydrocyclone is connected to the mud outlet of the inclined plate sedimentation tank, the sludge outlet of the hydrocyclone is connected to the inlet of the secondary recovery tank, the sludge outlet of the secondary recovery tank is connected to the residual sludge area, and the sedimentation outlets of the hydrocyclone and the secondary recovery tank are both connected to the coagulation and sand adding area.

[0007] According to an integrated water treatment sedimentation tank device provided by the present invention, the powdered carbon contact zone includes a first powdered carbon contact tank and a second powdered carbon contact tank which are interconnected, contact tank agitators are installed in the first powdered carbon contact tank and the second powdered carbon contact tank, the first powdered carbon contact tank is connected to a powdered carbon storage tank, and the powdered carbon storage tank is used to add powdered activated carbon to the first powdered carbon contact tank, and the second powdered carbon contact tank is connected to the coagulation and sand adding zone.

[0008] According to an integrated water treatment sedimentation tank device provided by the present invention, the coagulation and sand adding zone includes a first coagulation and sand adding tank and a second coagulation and sand adding tank which are interconnected, the first coagulation and sand adding tank is connected to the powdered carbon contact zone, and the second coagulation and sand adding tank is connected to the flocculation reaction tank; a first mixing agitator is set up in the first coagulation and sand adding tank and the second coagulation and sand adding tank, the first coagulation and sand adding tank is connected to a coagulant storage tank, and the coagulant storage tank is used to add coagulant to the first coagulation and sand adding tank, fine sand is added to the second coagulation and sand adding tank, and the sedimentation outlets of the hydrocyclone and the secondary recovery tank are both connected to the second coagulation and sand adding tank.

[0009] According to an integrated water treatment sedimentation tank device provided by the present invention, a second mixing agitator is installed in the flocculation reaction tank, and the flocculation reaction tank is connected to an automatic medicine soaking machine, and the automatic medicine soaking machine adds flocculant to the flocculation reaction tank through a dosing screw pump.

[0010] According to an integrated water treatment sedimentation tank device provided by the present invention, the bottom of the inclined plate sedimentation tank is a conical bottom, a central pit is arranged at the center of the conical bottom, the central pit is connected to the mud outlet, a scraper is set up in the inclined plate sedimentation tank, and the scraper plate at the lower end of the scraper acts on the conical bottom of the inclined plate sedimentation tank; a plurality of groups of corrugated inclined plates are arranged on the upper part of the inclined plate sedimentation tank to form an inclined plate sedimentation area, the flocculation reaction tank is connected to the inclined plate sedimentation area, a water collection channel is formed above the plurality of groups of corrugated inclined plates, and the water collection channel is connected to the water outlet.

[0011] According to an integrated water treatment sedimentation tank device provided by the present invention, the corrugated inclined plate is connected to an inclined plate self-cleaning device, the inclined plate self-cleaning device includes a Roots blower and a plurality of purge branch pipes, the purge branch pipes are located in the corrugated inclined plate, the purge branch pipes are provided with perforations, the plurality of purge branch pipes are arranged in parallel and connected to the Roots blower through a purge main pipe, and a backwash electric valve is provided at the connection between each of the purge branch pipes and the purge main pipe.

[0012] According to an integrated water treatment sedimentation tank device provided by the present invention, the pipeline connecting the inlet of the hydrocyclone and the mud outlet of the inclined plate sedimentation tank is provided with a sludge circulation pump, a first electromagnetic flowmeter and a pressure transmitter; the sedimentation outlet of the secondary recovery tank is provided with an electric regulating gate valve, and the sludge outlet of the secondary recovery tank is provided with a second electromagnetic flowmeter; an ultrasonic level meter is provided in the residual sludge area, the outlet of the residual sludge area is connected to a sludge pump, and the water outlet of the inclined plate sedimentation tank is provided with a comprehensive water quality analyzer.

[0013] According to an integrated water treatment sedimentation tank device provided by the present invention, the integrated water treatment sedimentation tank device also includes a power distribution cabinet and a PLC controller. The power distribution cabinet is provided with electrical equipment for distributing power to the electrical equipment of the integrated water treatment sedimentation tank device, and the PLC controller is used to regulate the electrical equipment in the power distribution cabinet.

[0014] According to an integrated water treatment sedimentation tank device provided by the present invention, the powdered carbon contact zone, the coagulation and sand adding zone, the flocculation reaction tank, the inclined plate sedimentation tank and the residual sludge zone are integrated, and the upper parts of the powdered carbon contact zone, the coagulation and sand adding zone, the flocculation reaction tank, the inclined plate sedimentation tank and the residual sludge zone are all provided with inspection and observation holes.

[0015] The integrated water treatment sedimentation tank device provided by the present invention adsorbs difficult-to-degrade soluble small molecules and organic phosphorus in water by adding powdered activated carbon in the powdered carbon contact zone, solves the disadvantage of poor suspended matter removal effect of traditional coagulation sedimentation tanks and high-efficiency sedimentation tanks by adding fine sand in the coagulation and sand adding zone, and adds a high molecular flocculant in the flocculation reaction tank so that the powdered carbon that adsorbs various pollutants in the powdered carbon contact zone and the coagulation and sand adding zone adsorption net that captures various pollutants. Floccules with a density much heavier than water are formed together by the fine sand in the tank, which are separated in the inclined plate sedimentation tank, and finally the suspended matter in the outlet water can be reduced to 5 mg / L, and the difficult-to-degrade soluble small molecules in the outlet water can be stabilized below 20 mg / L, meeting the ultimate depth treatment of total phosphorus (TP) (below 0.1 mg / l), and no subsequent filtration and treatment facilities need to be added, so as to meet the discharge standards of most sewage treatment plants. The integrated water treatment sedimentation tank device of the present invention has an integrated design, and its surface load is 4 to 6 times that of a traditional coagulation sedimentation tank and 2 to 3 times that of a high-efficiency sedimentation tank. It saves more space and is suitable for the construction and quality improvement of intensive land-based or underground sewage treatment plants, and can be widely used in municipal, industrial, and rural water treatment fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the principle of the integrated water treatment sedimentation tank device provided by the present invention.

[0018] Figure 2 It is a schematic diagram of the top structure of the integrated water treatment sedimentation tank device provided by the present invention.

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the integrated water treatment sedimentation tank device provided by the present invention.

[0020] Figure 4 yes Figure 2 AA cross-section diagram of .

[0021] Reference numerals: 1, pulverized carbon contact zone; 101, first pulverized carbon contact tank; 102, second pulverized carbon contact tank; 103, contact tank agitator; 2, water inlet; 3, coagulation and sand adding zone; 301, first coagulation and sand adding tank; 302, second coagulation and sand adding tank; 303, first mixing agitator; 4, flocculation reaction tank; 401, second mixing agitator; 5, inclined plate sedimentation tank; 6, water outlet; 7, mud outlet; 8, residual sludge zone; 9, hydrocyclone; 1 0. Secondary recovery box; 11. Powdered carbon storage tank; 12. Coagulant storage tank; 13. Automatic medicine soaking machine; 14. Dosing screw pump; 15. Mud scraper; 16. Corrugated inclined plate; 17. Drainage channel; 18. Roots blower; 19. Sludge circulation pump; 20. First electromagnetic flowmeter; 21. Second electromagnetic flowmeter; 22. Sludge pump; 23. Maintenance observation hole; 24. Powdered carbon dosing room; 25. Chemical dosing room; 26. Power distribution control room; 27. Circulation pump room. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0024] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0025] In the embodiments of the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0027] Combine the following Figures 1 to 4 The specific structure and working process of the integrated water treatment sedimentation tank device of the present invention are described.

[0028] One embodiment of the present invention provides an integrated water treatment sedimentation tank device, see Figure 1 As shown, it includes a powdered carbon contact zone 1, a coagulation and sand adding zone 3, a flocculation reaction tank 4, an inclined plate sedimentation tank 5 and a residual sludge zone 8, wherein the powdered carbon contact zone 1 is provided with a water inlet 2 for receiving the incoming water to be treated, and powdered activated carbon is added to the powdered carbon contact zone 1; the coagulation and sand adding zone 3 is connected with the powdered carbon contact zone 1, and a coagulant and fine sand are added to the coagulation and sand adding zone 3; the flocculation reaction tank 4 is connected with the coagulation and sand adding zone 3, and a polymer flocculant is added to the flocculation reaction tank 4; the inclined plate sedimentation tank 5 is connected with the flocculation reaction tank 4, and the inclined plate sedimentation tank 5 includes an upper clear water zone and a lower sedimentation zone, the upper clear water zone is provided with a water outlet 6, and the lower sedimentation zone is provided with a mud outlet 7; the residual sludge zone 8 is connected with the mud outlet 7 of the inclined plate sedimentation tank 5 through a pipeline.

[0029] It can be understood that the integrated water treatment sedimentation tank device of the present embodiment, by adding powdered activated carbon to the powdered carbon contact zone 1, adsorbs the difficult-to-degrade soluble small molecules and organic phosphorus in the water, by adding fine sand to the coagulation and sand adding zone 3 to solve the drawback of poor suspended matter removal effect of traditional coagulation sedimentation tanks and high-efficiency sedimentation tanks, and by adding a high molecular flocculant to the flocculation reaction tank 4, the powdered carbon contact zone 1 adsorbs various pollutants, and the coagulation and sand adding zone 3 adsorption net captures various pollutants. The small floccules and the fine sand in the tank together form flocs with a density much heavier than water, which are separated in the inclined plate sedimentation tank 5, and finally the suspended matter in the effluent from the outlet 6 can be reduced to 5 mg / L, and the difficult-to-degrade soluble small molecules in the effluent can be stabilized below 20 mg / L, meeting the ultimate depth treatment of total phosphorus (TP) (below 0.1 mg / l), and no subsequent filtration and treatment facilities need to be added, and the discharge standards of most sewage treatment plants can be met.

[0030] It should be understood that the integrated water treatment sedimentation tank device of this embodiment has an integrated design, and the surface load is 4 to 6 times that of the traditional coagulation sedimentation tank, 2 to 3 times that of the high-efficiency sedimentation tank, and the land occupation is more economical. The integrated water treatment sedimentation tank device of this embodiment is particularly suitable for the construction and quality improvement of intensive land-based or buried sewage treatment plants, and can be widely used in municipal, industrial, and rural water treatment fields.

[0031] Further, in other embodiments of the integrated water treatment sedimentation tank device of the present invention, continue to refer to Figure 1 As shown, the connecting pipeline between the mud outlet 7 of the inclined plate sedimentation tank 5 and the residual sludge area 8 is provided with a hydrocyclone 9 and a secondary recovery tank 10. The hydrocyclone 9 and the secondary recovery tank 10 are both provided with an inlet, a sedimentation outlet and a sludge outlet. The inlet of the hydrocyclone 9 is connected to the mud outlet 7 of the inclined plate sedimentation tank 5, the sludge outlet of the hydrocyclone 9 is connected to the inlet of the secondary recovery tank 10, the sludge outlet of the secondary recovery tank 10 is connected to the residual sludge area 8, and the sedimentation outlets of the hydrocyclone 9 and the secondary recovery tank 10 are both connected to the coagulation and sand adding area 3.

[0032] It can be understood that the present embodiment further recycles the sludge discharged from the inclined plate sedimentation tank 5. The chemical sludge at the sludge outlet 7 of the inclined plate sedimentation tank 5 is pumped into the hydrocyclone 9 through the suction and lifting action of the sludge circulation pump 19. The hydrocyclone 9 precipitates 99% of the fine sand in the sludge to the bottom sedimentation outlet under the action of the high-speed cyclone, and directly recycles it into the coagulation and sand adding area 3. The sludge lighter than the sand enters the secondary recovery box 10 from the upper sludge outlet. The secondary recovery box 10 recycles the fine sand and the sludge containing powdered carbon for a secondary period of time, ensuring that the fine sand recovery rate of the entire system is above 99.7%. At the same time, the secondary recovery box 10 can also accurately control the amount of residual sludge discharged from the entire system through the gate valve and the second electromagnetic flowmeter 21, and enter the residual sludge area 8. The recovered fine sand and sludge enter the coagulation and sand adding area 3 through the electric regulating gate valve. An ultrasonic level meter is provided in the residual sludge area 8, and the outlet of the residual sludge area 8 is connected to a sludge pump 22. The sludge pump 22 is controlled by the liquid level to regularly discharge the sludge in the residual sludge area 8 to the sludge dewatering system.

[0033] In some embodiments of the integrated water treatment sedimentation tank device of the present invention, Figure 2 and Figure 3 As shown, the powdered carbon contact zone 1 includes a first powdered carbon contact pool 101 and a second powdered carbon contact pool 102 which are interconnected. Contact pool agitators 103 are installed in the first powdered carbon contact pool 101 and the second powdered carbon contact pool 102. The first powdered carbon contact pool 101 is connected to a powdered carbon storage tank 11, and the powdered carbon storage tank 11 is used to add powdered activated carbon to the first powdered carbon contact pool 101. The second powdered carbon contact pool 102 is connected to the coagulation and sand adding zone 3.

[0034] It can be understood that the incoming water to be treated enters the powdered carbon contact zone 1 from the water inlet 2, passes through the first powdered carbon contact pool 101 and the second powdered carbon contact pool 102 in sequence, and the powdered carbon storage tank 11 connected to the first powdered carbon contact pool 101 is filled with powdered activated carbon, and the powdered activated carbon is quantitatively added into the first powdered carbon contact pool 101 through the powdered carbon dosing system. A contact pool agitator 103 is set up in both the first powdered carbon contact pool 101 and the second powdered carbon contact pool 102. The contact pool agitator 103 is used to stir and fully mix the powdered activated carbon and the incoming water in the contact pool. The stirring intensity of the contact pool agitator 103 can be set by variable frequency to achieve the best hydraulic conditions as needed. The powdered activated carbon fully adsorbs small molecules that are difficult to remove and difficult to degrade dissolved substances and organic phosphorus and other pollutants in the water in the powdered carbon contact zone 1.

[0035] In some embodiments of the integrated water treatment sedimentation tank device of the present invention, Figure 2 and Figure 3As shown, the coagulation and sand adding zone 3 includes a first coagulation and sand adding tank 301 and a second coagulation and sand adding tank 302 which are interconnected. The first coagulation and sand adding tank 301 is connected to the pulverized carbon contact zone 1, and the second coagulation and sand adding tank 302 is connected to the flocculation reaction tank 4; a first mixing agitator 303 is set up in the first coagulation and sand adding tank 301 and the second coagulation and sand adding tank 302, the first coagulation and sand adding tank 301 is connected to a coagulant storage tank 12, and the coagulant storage tank 12 is used to add coagulant to the first coagulation and sand adding tank 301, and fine sand is added to the second coagulation and sand adding tank 302, and the sedimentation outlets of the hydrocyclone 9 and the secondary recovery tank 10 are both connected to the second coagulation and sand adding tank 302.

[0036] It can be understood that the effluent after being treated in the powdered carbon contact zone 1 enters the coagulation and sand adding zone 3. The coagulation and sand adding zone 3 is also divided into two levels, namely the first coagulation and sand adding tank 301 and the second coagulation and sand adding tank 302. The water flows through the first coagulation and sand adding tank 301 and the second coagulation and sand adding tank 302 in sequence. The first coagulation and sand adding tank 301 and the second coagulation and sand adding tank 302 are respectively provided with a first mixing agitator 303. The stirring intensity of the first mixing agitator 303 can be set with variable frequency. During operation, the optimal hydraulic G value in the coagulation tank is automatically adjusted according to the amount of added medicine. Among them, coagulant is added into the first coagulation and sand adding tank 301. The coagulant is usually stored in the coagulant storage tank 12. The coagulant is added into the first coagulation and sand adding tank 301 through the coagulant dosing pump; fine sand is added into the second coagulation and sand adding tank 302. The characteristics of fine sand are natural sea sand screening products. The main component is silicon dioxide particles with a content of 98%, generally with an effective particle size of 90~140μm and a true density of about 2650Kg / m3. Fine sand can be added manually on a regular basis, once every one to two weeks. At the same time, the fine sand recovery in the integrated water treatment sedimentation tank device is also automatically added into the second coagulation and sand adding tank 302. The coagulant in the coagulation and sand adding zone 3 combines the insoluble SS, COD and phosphate in the water with the coagulant itself to form tiny flocs, and uses the fine sand as a carrier to enter the next treatment process, which can effectively enhance the flocculation reaction effect.

[0037] In some embodiments of the integrated water treatment sedimentation tank device of the present invention, Figure 2 and Figure 3 As shown, a second mixing agitator 401 is installed in the flocculation reaction tank 4 , and an automatic medicine-making machine 13 is connected to the flocculation reaction tank 4 . The automatic medicine-making machine 13 adds flocculants to the flocculation reaction tank 4 through a dosing screw pump 14 .

[0038] It can be understood that the water flow treated by the coagulation and sand adding area 3 enters the flocculation reaction tank 4, and a high molecular flocculant (anionic PAM) is added at the entrance of the flocculation reaction tank 4. The high molecular flocculant can be prepared by an automatic medicine-making machine 13 and pumped into the flocculation reaction tank 4 via a dosing screw pump 14. Under the action of the flocculant, the water flow entering the flocculation reaction tank 4, the powdered carbon adsorbed with various pollutants in the powdered carbon contact area 1, the coagulated small flocs captured with various pollutants by the adsorption net of the coagulation and sand adding area 3, and the fine sand in the tank together form flocs much heavier than water.

[0039] In some embodiments of the integrated water treatment sedimentation tank device of the present invention, see Figure 4 As shown, the bottom of the inclined plate sedimentation tank 5 is a conical bottom, and a central pit is arranged in the center of the conical bottom, which is connected to the mud outlet 7. A scraper 15 is arranged in the inclined plate sedimentation tank 5, and the scraper plate at the lower end of the scraper 15 acts on the conical bottom of the inclined plate sedimentation tank 5; a plurality of groups of corrugated inclined plates 16 are arranged on the upper part of the inclined plate sedimentation tank 5 to form an inclined plate sedimentation area, and the flocculation reaction tank 4 is connected to the inclined plate sedimentation area, and a water collection channel 17 is formed above the plurality of groups of corrugated inclined plates 16, and the water collection channel 17 is connected to the water outlet 6.

[0040] It can be understood that the water treated by the flocculation reaction tank 4 and the generated flocs enter the inclined plate sedimentation area of ​​the inclined plate sedimentation tank 5 along the direction of water flow, the water flows from bottom to top through the corrugated inclined plate 16, and the clean water and sediment are separated in the inclined plate sedimentation area, the separated clean water continues to enter the upper clean water area upward, and the purified high-quality purified water enters the middle water collection channel 17 through the outlet trough, and finally flows out of the device from the outlet 6. The outlet 6 can be provided with a comprehensive water quality analyzer to analyze the SS, COD, TP and other indicators of the outlet water online; the flocs containing pollutants such as fine sand, powdered carbon, SS, COD, TP, etc. in the sediment separated in the inclined plate sedimentation area, due to their heavy density, under the action of gravity, slide down along the corrugated inclined plate 16 to the sludge storage area at the bottom of the inclined plate sedimentation tank 5, and become chemical sludge after standing, and the chemical sludge is discharged through the mud outlet 7 for the next step of treatment.

[0041] Further, in some specific examples, see Figure 2As shown, the corrugated inclined plate 16 is connected to an inclined plate self-cleaning device, which includes a Roots blower 18 and a plurality of purge branches, the purge branches are located in the corrugated inclined plate 16, the purge branches are provided with perforations, the plurality of purge branches are arranged in parallel and connected to the Roots blower 18 through a purge main pipe, and a backwash electric valve is arranged at the connection between each purge branch and the purge main pipe. It can be understood that in this example, an inclined plate self-cleaning device is added to the corrugated inclined plate 16. Specifically, a purge gas source is provided to the inclined plate self-cleaning device through the Roots blower 18, and the purge gas provided by the Roots blower 18 is distributed to each purge branch through the purge main pipe. The purge branch purges from the perforations at the bottom of the corrugated inclined plate 16, and the purge gas purges each corrugated inclined plate 16 respectively. The opening and closing of the purge of each purge branch can be controlled by the backwash electric valve, and batch cleaning is performed as needed. It should be understood that the inclined plate self-cleaning device of this example can realize intelligent control of the whole process, and is convenient for operation and maintenance, with low cost. The traditional inclined plate sedimentation area requires regular manual cleaning. The self-cleaning device set in this example can realize equipment cleaning without stopping, and the equipment can operate uninterruptedly.

[0042] On the basis of the above-mentioned embodiments, in other embodiments of the integrated water treatment sedimentation tank device of the present invention, the pipeline connecting the inlet of the hydrocyclone 9 and the mud outlet 7 of the inclined plate sedimentation tank 5 is provided with a sludge circulation pump 19, a first electromagnetic flowmeter 20 and a pressure transmitter, the sludge circulation pump 19 is used to circulate the sludge at the bottom of the inclined plate sedimentation tank 5 into the hydrocyclone 9, and the first electromagnetic flowmeter 20 and the pressure transmitter are used to measure the flow rate and pressure of the sludge circulation pump 19 during operation; the sedimentation of the secondary recovery tank 10 The outlet is provided with an electric regulating gate valve to realize the regular and quantitative return of the secondary recovery tank 10 to the coagulation and sand adding area 3. The sludge outlet of the secondary recovery tank 10 is provided with a second electromagnetic flowmeter 21, which is used to measure the pipeline flow of the secondary recovery tank 10 into the residual sludge area 8; the residual sludge area 8 is provided with an ultrasonic level meter to measure the residual sludge level in the residual sludge area 8. The outlet of the residual sludge area 8 is connected to the sludge pump 22, and the sludge in the residual sludge area 8 is regularly discharged to the sludge dewatering system through the liquid level control sludge pump 22. The outlet 6 of the inclined plate sedimentation tank 5 is provided with a comprehensive water quality analyzer, which can analyze the SS, COD, TP and other indicators of the effluent in real time online. It can be understood that this embodiment mainly realizes the electric control of the integrated water treatment sedimentation tank device, and realizes the electric control of the integrated water treatment sedimentation tank device during operation through some electromagnetic valve groups and monitoring devices.

[0043] In some embodiments of the integrated water treatment sedimentation tank device of the present invention, the integrated water treatment sedimentation tank device also includes a power distribution cabinet and a PLC controller. The power distribution cabinet is provided with electrical equipment for distributing power to the electrical equipment of the integrated water treatment sedimentation tank device, and the PLC controller is used to control the electrical equipment in the power distribution cabinet.

[0044] It can be understood that, on the basis of some of the above embodiments, this embodiment adds an electric control equipment distribution box and a PLC controller, and the various pumps and agitators contained in the integrated water treatment sedimentation tank device are set to frequency conversion control in the distribution cabinet and the PLC controller, and all equipment can be accurately controlled and adjusted by the PLC controller. Through the distribution box and the PLC controller, the first mixing agitator 303, the second mixing agitator 401, the hydrocyclone 9, the automatic medicine soaking machine 13, the dosing screw pump 14, the scraper 15, the Roots blower 18, the sludge circulation pump 19, the first electromagnetic flowmeter 20, the pressure transmitter, the electric regulating gate valve, the second electromagnetic flowmeter 21, the ultrasonic level meter, the comprehensive water quality analyzer, the sludge pump 23, etc. are monitored in real time to work separately, and the entire integration is intelligently controlled by the PLC controller, so that all equipment can be accurately operated and automatically corrected, and finally unattended automatic operation is realized. In daily operation, operating condition modeling can be carried out, and AI calculations and deep learning can be performed with the help of the operating model to continuously adjust the operating time and frequency of each operating equipment, thereby continuously optimizing drug consumption and electricity consumption while ensuring that the water output meets the standards.

[0045] In some embodiments of the integrated water treatment sedimentation tank device of the present invention, Figure 2 and Figure 3 As shown, the powdered carbon contact area 1, the coagulation and sand adding area 3, the flocculation reaction tank 4, the inclined plate sedimentation tank 5 and the residual sludge area 8 are integrated, and the powdered carbon addition room 24, the chemical addition room 25, the power distribution control room 26, the circulating pump room 27 and other areas can also be set up. Among them, the powdered carbon addition room 24 is used to place the powdered carbon storage tank 11 and the powdered carbon addition device. The powdered carbon addition room 24 is generally located on the side of the powdered carbon contact area 1; the chemical addition room 25 is used to place the coagulant storage tank 12, the coagulant dosing pump, the automatic drug soaking machine 13 and other equipment, the power distribution control room 26 is used to place the power distribution cabinet and the power distribution system, and the circulating pump room 27 is used to place various power pumps. Figure 2 and Figure 3 As shown, each area is rationally divided and integrated in design. Inspection and observation holes 23 are arranged on the upper parts of the pulverized carbon contact area 1, the coagulation and sand adding area 3, the flocculation reaction tank 4, the inclined plate sedimentation tank 5 and the residual sludge area 8. Through each inspection and observation hole 23, it is convenient to observe and conduct later maintenance of each equipment during operation.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An integrated water treatment sedimentation tank device, characterized in that: include: A powdered carbon contact zone (1), wherein the powdered carbon contact zone (1) is provided with a water inlet (2) for receiving incoming water to be treated, and powdered activated carbon is added into the powdered carbon contact zone (1); A coagulation and sand adding zone (3), the coagulation and sand adding zone (3) being connected to the powdered carbon contact zone (1), and a coagulant and fine sand being added to the coagulation and sand adding zone (3); A flocculation reaction tank (4), the flocculation reaction tank (4) being connected to the coagulation and sand adding zone (3), and a polymer flocculant being added into the flocculation reaction tank (4); An inclined plate sedimentation tank (5), the inclined plate sedimentation tank (5) being connected to the flocculation reaction tank (4), the inclined plate sedimentation tank (5) comprising an upper clear water zone and a lower sedimentation zone, the upper clear water zone being provided with a water outlet (6), and the lower sedimentation zone being provided with a mud outlet (7); A residual sludge area (8), wherein the residual sludge area (8) is connected to the sludge outlet (7) of the inclined plate sedimentation tank (5) through a pipeline.

2. The integrated water treatment sedimentation tank device according to claim 1, characterized in that: A connecting pipeline between the mud outlet (7) of the inclined plate sedimentation tank (5) and the residual sludge zone (8) is provided with a hydrocyclone (9) and a secondary recovery tank (10); the hydrocyclone (9) and the secondary recovery tank (10) are both provided with an inlet, a sedimentation outlet and a sludge outlet; the inlet of the hydrocyclone (9) is connected to the mud outlet (7) of the inclined plate sedimentation tank (5); the sludge outlet of the hydrocyclone (9) is connected to the inlet of the secondary recovery tank (10); the sludge outlet of the secondary recovery tank (10) is connected to the residual sludge zone (8); and the sedimentation outlets of the hydrocyclone (9) and the secondary recovery tank (10) are both connected to the coagulation and sand adding zone (3).

3. The integrated water treatment sedimentation tank device according to claim 2, characterized in that: The powdered carbon contact zone (1) comprises a first powdered carbon contact pool (101) and a second powdered carbon contact pool (102) which are interconnected, and a contact pool agitator (103) is installed in each of the first powdered carbon contact pool (101) and the second powdered carbon contact pool (102). The first powdered carbon contact pool (101) is connected to a powdered carbon storage tank (11), and the powdered carbon storage tank (11) is used to add powdered activated carbon to the first powdered carbon contact pool (101). The second powdered carbon contact pool (102) is connected to the coagulation and sand adding zone (3).

4. The integrated water treatment sedimentation tank device according to claim 2, characterized in that: The coagulation and sand adding zone (3) comprises a first coagulation and sand adding tank (301) and a second coagulation and sand adding tank (302) which are interconnected, the first coagulation and sand adding tank (301) being connected to the pulverized carbon contact zone (1), and the second coagulation and sand adding tank (302) being connected to the flocculation reaction tank (4); a first mixing agitator (303) is installed in both the first coagulation and sand adding tank (301) and the second coagulation and sand adding tank (302); the first coagulation and sand adding tank (301) is connected to a coagulant storage tank (12), and the coagulant storage tank (12) is used to add coagulant to the first coagulation and sand adding tank (301); fine sand is added to the second coagulation and sand adding tank (302); and the sedimentation outlets of the hydrocyclone (9) and the secondary recovery tank (10) are both connected to the second coagulation and sand adding tank (302).

5. The integrated water treatment sedimentation tank device according to claim 2, characterized in that: A second mixing agitator (401) is installed in the flocculation reaction tank (4). The flocculation reaction tank (4) is connected to an automatic medicine-making machine (13). The automatic medicine-making machine (13) adds flocculant to the flocculation reaction tank (4) via a medicine-dosing screw pump (14).

6. The integrated water treatment sedimentation tank device according to claim 2, characterized in that: The bottom of the inclined plate sedimentation tank (5) is a conical bottom, and a central pit is arranged at the center of the conical bottom, and the central pit is connected to the mud outlet (7). A mud scraper (15) is arranged in the inclined plate sedimentation tank (5), and the mud scraper at the lower end of the mud scraper (15) acts on the conical bottom of the inclined plate sedimentation tank (5); a plurality of groups of corrugated inclined plates (16) are arranged on the upper part of the inclined plate sedimentation tank (5) to form an inclined plate sedimentation area, and the flocculation reaction tank (4) is connected to the inclined plate sedimentation area. A water collection channel (17) is formed above the plurality of groups of corrugated inclined plates (16), and the water collection channel (17) is connected to the water outlet (6).

7. The integrated water treatment sedimentation tank device according to claim 6, characterized in that: The corrugated inclined plate (16) is connected to an inclined plate self-cleaning device, the inclined plate self-cleaning device comprising a Roots blower (18) and a plurality of purge branch pipes, the purge branch pipes being located in the corrugated inclined plate (16), the purge branch pipes being provided with perforations, the plurality of purge branch pipes being arranged in parallel and connected to the Roots blower (18) via a purge main pipe, and a backwashing electric valve being provided at a connection between each of the purge branch pipes and the purge main pipe.

8. The integrated water treatment sedimentation tank device according to any one of claims 2 to 7, characterized in that: The pipeline connecting the inlet of the hydrocyclone (9) and the mud outlet (7) of the inclined plate sedimentation tank (5) is provided with a sludge circulation pump (19), a first electromagnetic flowmeter (20) and a pressure transmitter; The sedimentation outlet of the secondary recovery box (10) is provided with an electric regulating gate valve, and the sludge outlet of the secondary recovery box (10) is provided with a second electromagnetic flowmeter (21); An ultrasonic level meter is provided in the residual sludge zone (8), the outlet of the residual sludge zone (8) is connected to a sludge pump (22), and the outlet (6) of the inclined plate sedimentation tank (5) is provided with a comprehensive water quality analyzer.

9. The integrated water treatment sedimentation tank device according to claim 8, characterized in that: The integrated water treatment sedimentation tank device also includes a power distribution cabinet and a PLC controller. The power distribution cabinet is provided with electrical equipment for distributing power to the electrical equipment of the integrated water treatment sedimentation tank device. The PLC controller is used to control the electrical equipment in the power distribution cabinet.

10. The integrated water treatment sedimentation tank device according to any one of claims 1 to 7, characterized in that: The pulverized carbon contact zone (1), the coagulation and sand adding zone (3), the flocculation reaction tank (4), the inclined plate sedimentation tank (5) and the residual sludge zone (8) are integrated, and the upper parts of the pulverized carbon contact zone (1), the coagulation and sand adding zone (3), the flocculation reaction tank (4), the inclined plate sedimentation tank (5) and the residual sludge zone (8) are all provided with inspection and observation holes (23).

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