CN217173363U

CN217173363U - Deepwater dosing device

Info

Publication number: CN217173363U
Application number: CN202121346730.9U
Authority: CN
Inventors: 范益春; 高俊飞; 王瑞红
Original assignee: Shanxi Taigang Stainless Steel Co Ltd
Current assignee: Shanxi Taigang Stainless Steel Co Ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2022-08-12
Anticipated expiration: 2031-06-17

Abstract

The utility model relates to a water treatment field. In particular to a deep water dosing technology of a water treatment sedimentation tank. The utility model provides a deep water charge device, includes dosing tank, coagulating basin, flocculation basin, coagulating basin charge device, flocculation basin charge device, dosing pump, valve, and coagulating basin charge device includes cloth medicine funnel, first mixer, and flocculation basin charge device is including dosing ring, second mixer, and this device has solved the difficult monitoring of deep water and has leaded to the problem that the medicament dosage is low.

Description

Deepwater dosing device

Technical Field

The utility model relates to a water treatment field. In particular to a deep water dosing technology of a water treatment sedimentation tank.

Background

The sedimentation tank is a very important structure in the field of water treatment, and removes suspended matters in water by utilizing the natural sedimentation or coagulating sedimentation of the water. Common sedimentation tanks include horizontal sedimentation tanks, vertical sedimentation tanks, radial sedimentation tanks, high-density sedimentation tanks, and the like. The sedimentation tank generally needs to be added with a coagulation and flocculation agent to promote coagulation and flocculation of suspended matters in water into large-particle substances for sedimentation.

Compared with the traditional sedimentation tank, the high-density sedimentation tank has the characteristics of small occupied area and large treated water quantity. And the six-stage item of the Tai molten steel treatment adopts a high-density sedimentation tank to remove phosphorus and suspended matters from the water body. The sedimentation tank comprises 1 coagulation tank, 3 flocculation tanks (the depth of the tank is about 7-8 m) and 3 sedimentation tanks, and each flocculation tank corresponds to one sedimentation tank. And adding polyferric chloride (poly-ferrum for short) to the coagulation tank of the total inlet reaction zone for coagulation and dephosphorization, and adding polyacrylamide (poly-propylene for short) to the flocculation tank for flocculation. Because the sedimentation tank body is deep, the medicament often cannot achieve the effect of full reaction. Causing the effluent quality of the sedimentation tank to be turbid. Moreover, due to the actual situation on site, the condition that one dosing metering pump is configured for each tank is often not provided.

In order to improve the flocculation effect, the adding point of the polyacrylamide is positioned 6 meters below the water surface of the reaction tank. Every sedimentation tank is furnished with a batch and adds the medicine pipeline, and former design a measuring pump corresponds a flocculation basin, because the measuring pump trouble, trades for a screw pump and supplies with two sedimentation tanks, and another sedimentation tank is supplied with to a measuring pump, and the medicament pipeline does not have the installation flowmeter, and the medicament case liquid level descends from the medicament case liquid level simply, and the condition is thrown to the medicament that can't judge every sedimentation tank, and the constant occurrence monomer sedimentation tank medicament is thrown the volume and is hanged down, the muddy condition of quality of water.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above problem, provide a deep water charge device.

The purpose of the utility model is realized like this: a deepwater dosing device comprises a dosing tank, a coagulation tank, a flocculation tank, a coagulation tank dosing device, a flocculation tank dosing device, a dosing pump and a valve, wherein the coagulation tank dosing device comprises a medicine distributing hopper and a first stirring machine; the flocculation tank dosing device comprises a dosing ring and a second stirrer, the second stirrer and the dosing ring are arranged in the flocculation tank, the dosing ring is a circular pipeline, dosing holes are formed in the circular pipeline, the circular pipeline is connected with a flushing water pipeline and a second dosing pipe, valves are arranged on the flushing water pipeline and the second dosing pipe, a water outlet pipe is connected below the second dosing pipe, and the valves are arranged on the water outlet pipe; be provided with the dosing tank pipeline on the dosing tank, dosing tank pipeline exit is provided with the valve, and dosing tank pipeline exit connects two and goes into pencil and first pencil and second and add the pencil and be connected, all is provided with the dosing pump on two income pencils, and the end of intaking and the play water end of dosing pump all are provided with the valve.

Furthermore, the dosing ring is arranged below the second stirrer.

The utility model has the advantages that: the device solves the problem that the dosage of the medicament is not easy to monitor in deep water, so that the dosage of the medicament is low. The device is used for porous dosing ring distribution, the dosing ring is flushed for 1-3 minutes twice a day, the concentration and the dosage of the medicament are adjusted in time, and the water quality of the effluent of the high-density sedimentation tank is remarkably improved.

Drawings

The present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic structural view of the coagulation tank dosing device of the present invention.

FIG. 2 is a schematic structural view of the chemical feeding ring of the chemical feeding device of the flocculation tank of the utility model.

Fig. 3 is a schematic structural diagram of the present invention.

Fig. 4 is a schematic view of the dosing point of the present invention.

Wherein: 1. the device comprises a coagulation tank, 2 valves, 3 first dosing pipes, 4 medicine distributing hoppers, 5 first mixers, 6 flushing water pipes, 7 second dosing pipes, 8 water outlet pipes, 9 dosing tanks, 10 dosing pumps, 11 flocculation tanks and 12 sedimentation tanks. The star points in the figure are polypropylene dosing points, and the circle is polyferric dosing points.

Detailed Description

Aiming at the deeper tank body of the sedimentation tank, the dosing device without a metering pump is invented, so that the dosing quantity of each tank can be intuitively and directly regulated and controlled, and the quality of the effluent of the device is stable and reaches the standard.

Technical scheme

1. The poly-iron is added at the water inlets of the high-density sedimentation tank and the coagulation tank, and the mixing of the medicament can be promoted by utilizing the water flow impact of the water pipeline.

2. The high-density sedimentation tank and the flocculation tank are deep (the depth is 7-8 m). Deep water dosing, if the chemicals are distributed on the surface of a pool, even if the chemicals have the function of a stirrer, the chemicals are difficult to fully react with a water body within a limited retention time; therefore, the middle lower part of the pool is considered to be added with medicine, the porous ring is adopted to distribute the medicine evenly, the porous ring is arranged below the stirrer, and the medicine is fully reacted by stirring;

3. the polypropylene medicament is viscous, and if only one medicament adding point is provided, the medicament interruption caused by the failure of a medicament adding pump, the blockage of a medicament adding ring and the like occasionally cannot be avoided, so that the simultaneous addition in a coagulation tank and a flocculation tank is considered;

4. polyferric belongs to a coagulant, and polypropylene belongs to a flocculant. The adding of polypropylene in the coagulation tank needs to have a certain distance with the adding point of the polyferric.

5. The medicine outlet holes of the medicine distribution porous ring are easy to block and need to have a dredging function;

6. the polypropylene adopts an automatic dispensing device (a three-box type dosing box), and the concentration of the medicament is controlled by the dosage and the water inflow of the medicament; the poly-iron adopts double dispensing tanks to operate alternatively, and the medicament is manually added to dispense the medicament in the whole tank;

7. the dosage of the medicament is judged by the liquid level drop of the dispensing box (tank), and the valve of the medicine outlet pipe is regulated and controlled;

examples

1. Iron-gathering medicine preparation: manually adding a medicament into a medicament adding box (the medicament adding box adopts two tanks with the same volume and the same volume of 10m for dispensing), injecting water to a constant liquid level (1.8 m), and uniformly stirring. The two dispensing tanks operate alternately.

2. And (3) preparing a polypropylene medicament: the dosage is controlled by adjusting the frequency, and the water supplement amount is manually adjusted; the agent is dissolved in a dosing box (the dosing box is a three-box dosing box which is divided into three lattices in an integral large box body, each lattice becomes a small box body for dosing, a stirrer is arranged in each box body, the first box body is filled with the agent by a dosing device, is supplemented with water and is stirred, then overflows to a second box body, namely a middle box body, and then overflows to a third box body, and the agent is discharged from the third box body), so that the polypropylene is mixed, dissolved and cured.

3. The dosing pipe can be stainless steel or a PVC pipe and the like;

3. the iron-gathering dosing site is arranged at the water inlet of the coagulation tank, and long-tube funnels are used for underwater dosing. Or adding medicine into straight pipe at water inlet.

4. The polypropylene dosing point has two parts: the other part is a coagulation tank, and mainly adds medicine to the middle upper part of the tank by adopting a long-tube funnel; the other part is a flocculation tank for adding medicine, and a medicine adding ring is adopted for distributing the medicine in deep water.

5. The dosing ring is connected with two times of pipelines, one time is a dosing pipe, and the other time is a flushing pipe. The flushing pipe needs to be opened twice a day to carry out water flow impact on the dosing ring, so that the dosing pipe is prevented from being blocked. The medicine feeding pipe is provided with two valves (a medicine feeding pipe valve and a water outlet pipe valve, namely 1# and 2 #). If only the outlet pipe valve (1 #) is arranged, the outlet pipe valve (1 #) can be opened, and because the water pressure of the flushing pipeline is high, flushing water flows out from the outlet pipe valve (1 #), and whether the dosing ring in the depth of 6 meters below the water surface can distribute the medicine cannot be judged. Therefore, a manual dosing pipe valve (2 #) is installed at the lower end of the water outlet pipe valve (1 #), when the dosing pipe valve (2 #) is closed, the water outlet pipe valve (1 #) is opened, if the position of the water outlet pipe valve (1 #) can be used for discharging the medicine, the liquid level of the dosing tank is normally reduced, and the dosing pump is normally operated, the dosing of the flocculation tank can be considered to be normal.

6. The utility model discloses the device adds the medicine pump and can adopt ordinary screw pump, adjusts the medicament flow through regulating pump outlet valve, adds the medicine volume through the adjustment concentration of dispensing comes controlling means. The polypropylene agent in the coagulation tank is added by adopting an independent pipeline of an independent pump; the polyacrylamide agent in the flocculation tank is fed by adopting an independent pipeline, and the feeding pump can be 1-3 pumps corresponding to three tanks.

The medicine is distributed in deep water, the adding condition of the medicine is often difficult to be visually monitored, and the effluent of a sedimentation tank is turbid; the water quality of the outlet water of the device can be affected by the faults of the dosing pump, the blockage of the medicament pipeline and the like. Through adopting this utility model device, throw at coagulating basin and flocculating tank two and throw the volume of throwing and fully react of guarantee polypropylene. Meanwhile, the dosing condition of the intuitive monitoring device for the water outlet pipe valve can be opened by closing the dosing pipe valve, a flowmeter is not required to be installed, and the problem that the dosing dosage is low due to the fact that the dosing dosage is not easy to monitor in deep water is solved. Carry out porous dosing ring cloth medicine through this utility model device, twice every day washes 1-3 minutes to adding the medicine ring, in time adjusts medicament concentration and drug dose, and high density sedimentation tank effluent quality of water is showing and is promoting.

The high-density sedimentation tank for the sewage in the six stages adopts the chemical adding method.

The water inflow of the high-density sedimentation tank is about 48000m ³ D, two 10m stirring devices are adopted for the poly-iron dosage ³ The tank bodies are used alternately. Adding 20 bags of medicine into each tank, and replenishing water to a full liquid level. The screw pump delivers the medicine, and the flow of the medicine is controlled by adjusting an outlet valve of the medicine supply pump. The dosage concentration (about 40 ppm) of the medicament is calculated according to the dosage of the medicament and the water inflow.

The dosage of polypropylene is 3m ³ The three-compartment type dosing box is used for feeding the medicines at a constant speed and regulating and controlling the concentration of the medicines by regulating the water quantity. The medicine is added by three screw pumps after being mixed, dissolved and cured. One screw pump runs through an independent medicine supply pipeline, medicine is added at a polypropylene medicine adding point, the flow of the medicine outlet can be observed, and the medicine flow is controlled by adjusting the valve at the medicine supply pump outlet (the medicine adding concentration at the polypropylene medicine adding point is about 0.5 ppm); the other two screw pumps (dosing pumps) are responsible for dosing the flocculating tank polypropylene, a dosing pipe valve and a flushing pipe valve can be closed, a water outlet pipe valve is opened to observe the medicine discharging condition of the medicine, and the medicine flow is controlled by adjusting an outlet valve of the medicine feeding pump (the dosing concentration of the flocculating tank polypropylene is about 1.0-1.2 ppm). The actual runtime also needs to pay attention to:

1. the dosing personnel opens the flushing valve (3 #) of the dosing ring of each flocculation tank twice a day in the morning and at night, closes the dosing pipe valve (2 #), and flushes the dosing ring for about 3-5 minutes (the flushing time can be adjusted according to the actual situation);

2. the medicine concentration is regulated and controlled by a medicine adding person through the medicine adding amount and the water inflow;

3. the dosing personnel adjust the dosing amount of the flocculation tank by adjusting the valve.

Through the above dosing measures, the water turbidity is reduced from 30NTU to <10 NTU.

A deep water chemical adding device without a metering pump is a device which is mainly used for distributing chemicals in deep water of a sedimentation tank and supplying the chemicals to a plurality of tank bodies by a chemical adding pump. In consideration of the situation that the reaction is not complete due to the viscosity and the depth of water of the medicament, the medicament is added at two points in the middle and the lower part of the water tank, the medicament adding situation can be visually detected by a medicament feeding funnel in the middle, and the medicament is uniformly distributed by a medicament adding ring in the lower part; the connection of the drug adding ring flushing pipeline can avoid the blockage of the drug adding hole; by opening and closing the valve of the dosing ring medicament pipeline, the dosing condition of the deepwater medicament can be visually monitored. This utility model discloses the device need not to use measuring pump and installation flowmeter, adjusts and controls the medicament through medicament dosage and moisturizing volume and throws concentration, practices thrift the cost, convenient regulation and control.

The above description is only for the specific embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.

Claims

1. The deepwater dosing device is characterized in that: the device comprises a dosing tank, a coagulation tank, a flocculation tank, a coagulation tank dosing device, a flocculation tank dosing device, a dosing pump and a valve, wherein the coagulation tank dosing device comprises a dosing distribution funnel and a first stirrer; the flocculation tank dosing device comprises a dosing ring and a second stirrer, the second stirrer and the dosing ring are arranged in the flocculation tank, the dosing ring is a circular pipeline, dosing holes are formed in the circular pipeline, the circular pipeline is connected with a flushing water pipeline and a second dosing pipe, valves are arranged on the flushing water pipeline and the second dosing pipe, a water outlet pipe is connected below the second dosing pipe, and the valves are arranged on the water outlet pipe; be provided with the dosing tank pipeline on the dosing tank, dosing tank pipeline exit is provided with the valve, and dosing tank pipeline exit connects two and goes into pencil and first pencil and second and add the pencil and be connected, all is provided with the dosing pump on two income pencils, and the end of intaking and the play water end of dosing pump all are provided with the valve.

2. The deep water dosing device of claim 1, wherein: the dosing ring is arranged below the second stirrer.