Grid flocculation inclined tube floating and sinking integrated water treatment device

Abstract

The utility model relates to a grid flocculation inclined tube floating and sinking integrated water treatment device, which comprises a grid flocculation chamber and a precipitation air flotation chamber, the grid flocculation chamber is internally divided into a plurality of treatment chambers by a plurality of grating plates, each grating plate is provided with a water flow through hole, the first treatment chamber is provided with a water inlet, and the second treatment chamber is provided with a water outlet. A water inlet is connected with an external pipeline mixer, a water inlet valve main valve is installed on the pipeline mixer, the last treatment chamber is divided into a left cavity and a right cavity through a partition plate, the cavity close to the right side is an air flotation contact chamber, a dissolved air releaser is placed in the air flotation contact chamber, and the air flotation contact chamber is connected with a precipitation air flotation chamber. The rear portion of the sedimentation air flotation chamber is connected with a clear water chamber, a clear water outlet header pipe is arranged on the clear water chamber to discharge water, a V-shaped sludge hopper is arranged at the bottom of the grid flocculation chamber and the bottom of the sedimentation air flotation chamber, sludge can sink to the bottom conveniently, and a plurality of sludge discharging pipes are arranged at the bottom of the sludge hopper. The device has the advantages of simple and reasonable structure, small occupied area, strong water quality adaptability, good treatment effect and the like.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the water supply treatment technical field of running water, relates to a grid flocculation inclined pipe floatation and sedimentation integrated water treatment device. BACKGROUND

[0002] The conventional flocculation sedimentation tank often considers the most unfavorable condition in design, and needs a long flocculation time and a low surface load under the condition of low temperature and low turbidity in winter. However, in summer, the raw water temperature is high, the turbidity is large, the alum flowers are more likely to form, and the flocculation sedimentation is also easier, so the design according to the most unfavorable condition will lead to the waste of space and resources.

[0003] Therefore, the grid flocculation inclined pipe floatation and sedimentation integrated water treatment device is designed to overcome the above problems. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at overcoming the deficiencies in the prior art, and provides a grid flocculation inclined pipe floatation and sedimentation integrated water treatment device which has a simple and reasonable structure, a small occupied area, strong water quality adaptability and good treatment effect.

[0005] The utility model is realized by the following technical scheme: a grid flocculation inclined pipe floatation and sedimentation integrated water treatment device, which comprises a grid flocculation chamber and a sedimentation air flotation chamber, the grid flocculation chamber is divided into a plurality of treatment chambers by a plurality of grating plates, water flow through holes are formed in each grating plate, a water inlet is formed in the first treatment chamber, the water inlet is connected with a pipeline mixer outside, a water inlet valve master valve is installed on the pipeline mixer, the last treatment chamber is divided into left and right two chambers by a partition plate, the chamber close to the right side is an air flotation contact chamber, a dissolved air release device is placed in the air flotation contact chamber, the air flotation contact chamber is connected with the sedimentation air flotation chamber through a water outlet, the sedimentation air flotation chamber is connected with a clear water chamber through a water outlet pipe at the back, a clear water outlet main pipe is formed in the clear water chamber to discharge water, and V-shaped hoppers are arranged at the bottoms of the grid flocculation chamber and the sedimentation air flotation chamber to facilitate sludge sedimentation, and a plurality of sludge discharge pipes are formed in the bottoms of the hoppers to facilitate sludge discharge.

[0006] Preferably, the partition plate is vertically arranged in the last chamber of the grid flocculation chamber to divide the chamber into left and right two chambers, a certain space is left between the bottom of the chamber and the bottom of the grid flocculation chamber as a water flow channel, water flows into the air flotation contact chamber on the right side from the left side, and a dissolved air release device is installed close to the partition plate.

[0007] As preferred: the air dissolving release device is connected with the external air dissolving device through the air dissolving pipe, the air dissolving device is composed of the pressure air dissolving tank, the air storage tank and the air compressor, one end of the pressure air dissolving tank is connected with the air storage tank, the air storage tank is connected with the air compressor, the other end is connected with the air dissolving pipe, the length of the air dissolving pipe is less than the length of the partition plate, and the water inlet of the air floating contact chamber is opposite to the air floating chamber.

[0008] As preferred: the air floating chamber is composed of the air floating area below and the precipitation area above, the inclined pipe is arranged between the two areas, two independent water inlets are arranged on the air floating contact chamber side, the lower water inlet is the air floating area water inlet, the upper water inlet is the precipitation area water inlet, two independent water outlets are arranged on the clear water chamber side, the upper water outlet is the precipitation water outlet, and the lower water outlet is the air floating water outlet, the gate is arranged on the side of the water inlet, the gate is connected with the gate handle at the top through the screw rod, the height of the gate is adjusted by screwing the gate handle, and the corresponding water inlet is opened, and the screw rod is arranged in the guide groove formed in the pool wall.

[0009] As preferred: the air floating area below is provided with an air floating water collecting pipe, the air floating water collecting pipe is connected with the pressure air dissolving tank through the air dissolving backflow pipe, and the air dissolving backflow valve and the air floating backflow pump are arranged on the air dissolving backflow pipe.

[0010] As preferred: the precipitation area above is provided with a precipitation area water collecting tank, a scum tank is arranged on the side of the air floating area water inlet of the precipitation area water collecting tank, the scum tank is provided with an inclined flow baffle, a skimming machine is arranged above the precipitation area water collecting tank, and a scum flushing pipe is arranged on the other side of the scum tank; the scum is first skimmed by the skimming machine and then flushed by the flushing pipe.

[0011] The beneficial effects of the utility model are as follows:

[0012] The utility model provides a grid flocculation inclined pipe floatation and sinking integrated water treatment device which has small land occupation, high water quality adaptability and good treatment effect. The utility model effectively utilizes the vertical shaft at the rear end of the grid flocculation chamber, forms a transition chamber and a contact chamber of the air floating area by adding a vertical partition plate. The air floating contact chamber and the inclined pipe precipitation tank wall are provided with two upper and lower water inlets, the opening and closing of the water inlets are controlled by the gate, a clear water chamber (water level adjusting chamber) is arranged at the rear end, and the air floating and precipitation process in one tank body is realized by controlling the valves (precipitation area water collecting valve, air floating area water collecting valve and backflow valve), the whole process is simple to operate and has high adaptability. DRAWINGS

[0013] Figure 1 It is a whole structure schematic view of the utility model. CONCRETE EMBODIMENT

[0014] In order to make the ordinary skilled in the art more clearly understand the purpose, technical scheme and advantages of the utility model, the utility model will be further described below in combination with the drawings and examples.

[0015] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms such as ''up'', ''down'', ''left'', ''right'', ''inner'', ''outer'', ''horizontal'', ''vertical'' is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model, and does not indicate or imply that the indicated device or element must have a particular orientation, so it cannot be understood as a limitation on the utility model.

[0016] The utility model will be described in detail below in combination with the drawings: as Figure 1 Indicated, a grid flocculation inclined pipe float and sink integrated water treatment device, it includes grid flocculation room 31 and sedimentation air flotation room 22, the grid flocculation room is divided into multiple processing chambers by multiple grating plates 4, water flow through hole is set up on each grating plate 4, wherein the first processing chamber is set up with water inlet, and the water inlet is connected with the pipeline mixer 30 outside, and the water inlet valve total valve 29 is installed on the pipeline mixer, and the last processing chamber is separated into left and right two chambers by the partition plate 33, and the chamber close to the right side is air flotation contact chamber 21, and the air flotation contact chamber 21 is placed with dissolved air release device 3, and the air flotation contact chamber 21 is connected with the sedimentation air flotation room 22 through the water outlet, and the sedimentation air flotation room 22 is connected with the clear water room 14 through the water outlet pipe behind, and the clear water room 14 is set up with clear water outlet main pipe 16 to discharge water, and the bottom of the grid flocculation room 31 and sedimentation air flotation room 22 is provided with the V-shaped sludge hopper 32, which is convenient for sludge to sink to the bottom, and a plurality of sludge discharge pipes 18 are set up at the bottom of the sludge hopper 32, which is convenient for sludge to be discharged.

[0017] The utility model integrates air flotation and sedimentation two kinds of processes in one pool body, adopts inclined pipe sedimentation process when water temperature is high and turbidity is high in summer, and adopts air flotation process when temperature is low and turbidity is low in winter or when algae in reservoir explodes in summer, so that full use of space is realized, high integration of equipment is realized, water quality is adapted by switching two kinds of processes, and good treatment effect is ensured.The clear water room (water level control room) of the utility model can control air flotation process water level through water level regulator.The right side of the clear water room can be provided with a vertical baffle as a clear water collecting weir during sedimentation process.

[0018] The partition plate 33 is vertically arranged in the last chamber of the grid flocculation room 31, divides the chamber into left and right two chambers, and leaves a certain spacing between the bottom and the bottom of the grid flocculation room 31 as a water flow channel 34, so that the water on the left side flows into the air flotation contact chamber 21 on the right side, and the dissolved air release device 3 is installed close to the partition plate 33.

[0019] The dissolved air releaser 3 is connected with the external dissolved air equipment through a dissolved air pipe, the dissolved air equipment is composed of a pressure dissolved air tank 25, a gas storage tank 27 and an air compressor 28, one end of the pressure dissolved air tank 25 is connected with the gas storage tank 27, the gas storage tank 27 is connected with the air compressor 28, the other end is connected with the dissolved air pipe 1, the length of the dissolved air pipe 1 is less than the length of the partition plate 33, and the water inlet on one side of the air floating contact chamber 21 is opposite to the air floating chamber 22.

[0020] The air floating chamber 22 is composed of the air floating area 20 at the lower side and the sedimentation area 22 at the upper side, the inclined pipe 19 is arranged between the two areas, two independent water inlets are formed on the air floating contact chamber side, the lower water inlet is the air floating area water inlet 6, the upper water inlet is the sedimentation area water inlet 7, two independent water outlets are formed on the clear water chamber side, the upper water outlet is the sedimentation water outlet 15, and the lower water outlet is the air floating water outlet 16, the side of the water inlet is provided with a gate 35, the gate 35 is connected with the gate handle 2 at the top through a screw rod 36, the height of the gate 35 is adjusted by screwing the gate handle 2 to open the corresponding water inlet, and the screw rod 36 is arranged in the guide groove formed in the pool wall.

[0021] The air floating area 20 at the lower side is provided with an air floating water collecting pipe 8, the air floating water collecting pipe 8 is connected with the pressure dissolved air tank through a dissolved air backflow pipe 37, and the dissolved air backflow valve 23 and the air floating backflow pump 24 are formed on the dissolved air backflow pipe.

[0022] The sedimentation area 22 at the upper side is provided with a sedimentation area water collecting tank 10, the sedimentation area water collecting tank 10 is provided with a scum tank 11 on the side of the air floating area water inlet 6, the scum tank 11 is provided with an inclined flow baffle 38, the upper side of the sedimentation area water collecting tank 10 is provided with a skimming machine 9, and the other side of the scum tank 11 is provided with a scum flushing pipe 12; the scum is first skimmed by the skimming machine and then flushed by the flushing pipe.

[0023] The scum tank in the utility model is arranged at the water inlet side, so that the scum that may fall into the air floating area water collecting pipe is avoided, an inclined slope can be further arranged at the bottom of the scum tank, the collection and discharge of the scum are facilitated, the air floating water flow direction is separated to the middle position of the chamber, and the floating of the suspended matter in water is more facilitated.

[0024] Embodiment one

[0025] The water source is the Yellow River water, the water temperature is high, the turbidity is high, the coagulation effect is good, and the suspended matter in water is easy to settle in summer, so that the integrated floating and sinking equipment adopts the sedimentation process for treatment.

[0026] The water inlet main valve 29 is opened, raw water enters the grid flocculation chamber 31 from the water inlet main, the grid flocculation chamber 31 is provided with a plurality of grid plates 4, and flocculation of raw water and medicament is completed through hydraulic action, the medicament required for raw water coagulation is added from the pipeline mixer 30, the added medicament is PAC, the raw liquid concentration is 10%, and the added concentration is 50 mg / L. In this example, the residence time of the grid flocculation chamber is 18 min, the shaft flow rate is 0.14 m / s and 0.11 m / s, the G value of the flocculation section is 45 s -1 , and the GT value is 47,000. The water flow passes through the front section and the middle section of the grid flocculation chamber and enters the air flotation contact chamber 21, at this time, the gate 5 is located at the air flotation zone water inlet 6 by rotating the gate handle 2, at this time, the water flow enters the sedimentation air flotation chamber water distribution chamber 20 from the sedimentation zone water inlet 7. In this example, the height of the sedimentation zone water distribution chamber is 1.5 m. At this time, the air flotation water collecting pipe valve 17 is closed, the water flow passes through the upper inclined pipe 19 and enters the sedimentation zone clear water chamber 22. In this example, the length of the inclined pipe is 1 m, the inclined pipe diameter is 40 mm, and the height of the sedimentation zone clear water chamber is 1.4 m. The suspended matter in the water sinks to the sludge hopper, the sludge hopper is connected with the sludge discharge pipe 18 provided with an automatic sludge discharge valve, the sludge discharge valve can be hydraulically controlled or electrically controlled, in this example, the sludge discharge valve is an electric valve. The sludge passes through the sludge discharge pipe 18 to the sludge pool. At this time, the sedimentation zone water collecting pipe valve 15 is opened, the dissolved air backflow valve 23 is closed, the clear water enters the water level adjusting chamber 14 through the sedimentation zone water collecting tank 10, passes through the overflow weir to the water collecting tank, and is discharged through the clear water outlet main pipe 16.

[0027] Example Two

[0028] The water source is the Yellow River water, which is low in temperature and turbidity in winter. The air floatation process is used for treatment at this time. In this example, the front end dosing and flocculation part is consistent with Example 1, the difference is that the gate plate 5 is located at the water inlet 7 of the sedimentation zone by rotating the gate handle 2. The water flow flows in the air floatation contact chamber 21, and flows upward into the air floatation separation chamber 22. The water surface scum in the separation chamber is scraped into the scum tank 11 by the skimmer 9. The scum falling during skimming is discharged through the sludge discharge pipe 18 at the bottom of the tank. The scum flushing pipe 12 is provided at the top of the tank for auxiliary flushing of the scum at the rear end of the tank. The water in the air floatation separation chamber 22 enters the air floatation zone water collecting chamber through the lower end inclined pipe 19, at this time the sedimentation water collecting pipe valve 15 is closed and the air floatation water collecting pipe valve 17 is opened. The water flow is collected through the air floatation water collecting pipe 8 and enters the water level adjusting chamber 14. In this example, the flow rate of the air floatation water collecting pipe 8 is 0.5 m / s, and the form is a perforated pipe with openings at an angle of 45° downward from the pipe. At this time, the dissolved gas backflow valve 23 is opened, the backflow pump 24 is opened, and a flow meter is provided at the outlet of the backflow pump 24. In this example, the backflow amount is 12%. The backflow pipe is connected to the inlet of the backflow pump 24, and the outlet is connected to the pressure dissolved gas tank 25. The air inlet of the dissolved gas tank is connected to the air compressor system, which in this example includes an air compressor 28, an air storage tank 27 and a compressed air pipe 26. The outlet of the pressure dissolved gas tank 25 is connected to the dissolved gas releaser 3 through the dissolved gas pipe 1. In this example, the residence time of the pressure dissolved gas tank 25 is 120 s.

[0029] A water level regulator 13 is provided at the upper end of the water level adjusting chamber 14. When the air floatation process is used, the height of the regulating weir is adjusted to control the water level of the air floatation separation chamber 22. The clear water in the water level adjusting chamber 14 is discharged through the clear water outlet main pipe 16.

[0030] The two water purification methods of the system are as follows: (1) sedimentation process: open the water inlet main pipe valve 29, rotate the gate handle 2 to make the gate 5 located at the air floatation water inlet 6, at this time the sedimentation zone water inlet 7 is opened, the air floatation water collecting pipe valve 17 is closed, the sedimentation zone water collecting pipe valve 15 is opened, and the backflow valve 23 is closed. The required reagent is added from the pipe mixer 30, the raw water enters the equipment from the water inlet main pipe, and after grid flocculation and inclined pipe sedimentation, it enters the water level adjusting chamber 14 (also a clear water chamber) through the sedimentation zone water collecting pipe, is collected through the overflow tank, and is finally discharged from the clear water main pipe 16.

[0031] (ii) Air floatation process: Turn the handle 2 of the rotating gate to make the gate 5 at the inlet 7 of the sedimentation zone. At this time, the inlet 6 of the air floatation is opened, the valve 17 of the air floatation collecting pipe is opened, the valve 15 of the collecting pipe of the sedimentation zone is closed, and the backflow valve 23 is opened. Further, the air compressor 28 is opened, the backflow pump 24 is opened, and the skimmer 9 is opened. The required reagent is added from the pipe mixer 30, the raw water is introduced into the device from the inlet main pipe, and reaches the air floatation contact chamber 21 (the contact chamber is the rear section of the grid flocculation chamber) through the grid flocculation chamber 31. At this time, the dissolved air release device 3 releases a large amount of micro-bubbles, which enter the air floatation separation chamber 22 through the inlet 6 of the air floatation zone along with the water flow. The suspended particles in the water float to the top of the tank along with the micro-bubbles, and the skimmer 9 at the top of the tank scrapes the scum into the scum tank 11. The water flow passes through the inclined pipe 19 to the air floatation collecting chamber 20, enters the water level adjusting chamber 14 through the air floatation zone collecting pipe 8, and finally the clear water is discharged through the clear water main pipe 16 after the water level in the air floatation separation chamber 22 is adjusted by the water level adjuster 13.

[0032] The following table is the treatment effect of the raw water by the above two embodiments (sedimentation process and air floatation process respectively):

[0033] Table 1: Sedimentation process

[0034] Item Turbidity (NTU) SS (mg / L) NH3-N (mg / L) COD Mn (mg / L) TP (mg / L) Influent 260.37 20.51 0.29 5.21 0.45 Effluent 3.28 6.64 0.18 2.56 0.02 Removal rate 98.74％ 67.63％ 37.93％ 50.86％ 95.56％

[0035] Table 2: Air floatation process

[0036] Item Turbidity (NTU) SS (mg / L) NH3-N (mg / L) COD Mn (mg / L) TP (mg / L) Influent 15.62 20.51 0.31 5.87 0.68 Effluent 2.83 6.64 0.19 3.12 0.03 Removal rate 81.88％ 67.63％ 38.71％ 46.85％ 95.59％

[0037] The specific embodiments described herein are merely illustrative of the principles of the present application and its efficacy, and are not intended to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical thought of the present application should be covered by the claims of the present application.

Claims

1. A grid flocculation inclined tube flotation integrated water treatment device, comprising a grid flocculation chamber and a sedimentation flotation chamber, characterized in that: The grid flocculation chamber is divided into multiple treatment chambers by multiple grid plates, water flow through holes are formed in each grid plate, a water inlet is formed in the first treatment chamber and connected with an external pipeline mixer, a water inlet valve master valve is installed on the pipeline mixer, two chambers are separated by a partition plate in the last treatment chamber, the chamber close to the right side is a gas float contact chamber, a dissolved gas releaser is placed in the gas float contact chamber, the gas float contact chamber is connected with a sedimentation gas float chamber through a water outlet, the sedimentation gas float chamber is connected with a clear water chamber through an outlet pipe at the back, a clear water outlet main pipe is formed in the clear water chamber to discharge water, a V-shaped hopper is arranged at the bottom of the grid flocculation chamber and the sedimentation gas float chamber to facilitate sludge sinking, and multiple sludge discharge pipes are formed in the bottom of the hopper to facilitate sludge discharge.

2. The grid flocculation inclined-tube float-and-sink integrated water treatment device according to claim 1, characterized in that: The partition plate is vertically arranged in the last chamber of the grid flocculation chamber to divide the chamber into two chambers, a certain space is left between the bottom of the partition plate and the bottom of the grid flocculation chamber as a water flow channel, water flows into the gas float contact chamber on the right side from the left side, and a dissolved gas releaser is installed close to the partition plate.

3. The grid flocculation inclined-tube float-and-sink integrated water treatment device according to claim 2, characterized in that: The dissolved gas releaser is connected with an external dissolved gas device through a dissolved gas pipe, the dissolved gas device is composed of a pressure dissolved gas tank, a gas storage tank and an air compressor, one end of the pressure dissolved gas tank is connected with the gas storage tank, the gas storage tank is connected with the air compressor, the other end is connected with the dissolved gas pipe, the length of the dissolved gas pipe is less than the length of the partition plate, and the water inlet on one side of the gas float contact chamber is opposite to the sedimentation gas float chamber.

4. The grid flocculation inclined-tube float-and-sink integrated water treatment device according to claim 3, characterized in that: The sedimentation gas float chamber is composed of a lower gas float area and an upper sedimentation area, an inclined pipe is arranged between the two areas, two independent water inlets are formed on one side of the gas float contact chamber, the lower water inlet is a gas float area water inlet, and the upper water inlet is a sedimentation area water inlet, two independent water outlets are formed on one side of the clear water chamber, the upper water outlet is a sedimentation water outlet, and the lower water outlet is a gas float water outlet, a gate is installed on one side of the water inlet, the gate is connected with a gate handle on the top through a screw rod, the height of the gate is adjusted by screwing the gate handle to open the corresponding water inlet, and the screw rod is installed in a guide groove formed in the pool wall.

5. The grid-flocculation-inclined-pipe-float-and-sink integrated water treatment device according to claim 4, characterized in that: A gas float water collecting pipe is arranged in the lower gas float area, the gas float water collecting pipe is connected with the pressure dissolved gas tank through a dissolved gas backflow pipe, and a dissolved gas backflow valve and a gas float backflow pump are formed in the dissolved gas backflow pipe.

6. The grid-flocculation-inclined-pipe-float-and-sink integrated water treatment device according to claim 4, characterized in that: A sedimentation area water collecting tank is arranged in the upper sedimentation area, a scum tank is arranged on one side of the sedimentation area water collecting tank, an inclined flow baffle is formed in the scum tank, a skimmer is installed above the sedimentation area water collecting tank, and a scum flushing pipe is formed on the other side of the scum tank, the scum is first skimmed by the skimmer and then flushed by the flushing pipe.

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