CN212151741U - Dosing and mixing device of water treatment system - Google Patents
Dosing and mixing device of water treatment system Download PDFInfo
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- CN212151741U CN212151741U CN202020337031.7U CN202020337031U CN212151741U CN 212151741 U CN212151741 U CN 212151741U CN 202020337031 U CN202020337031 U CN 202020337031U CN 212151741 U CN212151741 U CN 212151741U
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Abstract
The utility model discloses a water treatment system adds medicine mixing arrangement, include medical kit, motor, (mixing) shaft, impeller, medical kit entry interface, inlet valve, entry filter screen, inlet channel valve, centrifugal pump, pipeline, shower nozzle in proper order. The (mixing) shaft passes through medical kit top center and is connected with the motor, and the motor drives the impeller rotation on the (mixing) shaft and carries out preliminary liquid medicine and mix. The blades in the top impeller are designed to be shortest and gradually increase close to the bottom of the medicine chest. The chemical tank bottom erects the pipeline that circles in proper order and gets into the centrifugal pump through entry valve, entry filter screen, sprays the blade in the impeller of chemical tank bottom from the chemical tank top through the shower nozzle after centrifugal pump pressurization, carries out the secondary and mixes. The liquid medicine is sprayed by a centrifugal pump for multiple times in a circulating way, and finally the liquid medicine is uniformly mixed. The device can fully mix the medicament, meet the concentration requirement of dosing of the water treatment device, reduce the fluctuation of the operation process of the water treatment system caused by the uneven concentration of the medicament, save the medicament and reduce the production cost.
Description
Technical Field
The utility model relates to a water treatment facilities technical field especially relates to a water treatment system adds medicine mixing arrangement.
Background
With the increasing shortage of water resources and the stricter environmental protection requirements, industrial enterprises use water treatment systems to improve the reutilization rate of water in order to meet production requirements. The whole-membrane water treatment process has higher utilization rate in various industrial water system applications, and the specific process comprises self-cleaning, overlapped filtration, ultrafiltration, primary reverse osmosis, secondary reverse osmosis and EDI (Electro-deionization), the water source is underground water, the pH value is 6-8, and the water contains a large amount of HCO3 —And CO2CO in water treatment systems2Is an important issue that must be considered.
Because the first-stage reverse osmosis device has no filtering effect on gas molecules, the inlet water contains CO under the condition that other acid-base state ions are removed2，CO2CO after partial dissolution2+H2O＝H2CO3＝H+HCO3 —And H ions are dissociated to generate grade 1 water-producing acid bias. Therefore, the pH value of the water from the first-stage reverse osmosis is generally lower than that of the inlet water and is between 4.8 and 7. After entering the second-stage reverse osmosis, H + HCO is subjected to chemical reaction3 —＝H2CO3＝CO2+H2O (this reaction is a reversible reaction) when OH in water-When increasing, the reaction proceeds to the left. When the pH value of the water is more than 8.2, CO2All converted into carbonate ions, HCO in water at pH less than 43 —All conversion to CO2. Therefore, it is necessary to adjust the pH to the range of 8.2-8.4 by adding caustic soda flakes to the secondary reverse osmosis feed water to make the CO in the water2All conversion to HCO3 —Is removed by a secondary reverse osmosis membrane to remove CO2The purpose of (1).
In the prior art, the added flaky sodium hydroxide is added into a secondary reverse osmosis water inlet main pipe to adjust the pH value after being manually stirred by a medicine box, so that the alkali liquor is not uniform, the quality of secondary reverse osmosis produced water is unstable, and the medicament waste is also caused.
The utility model aims to provide a water treatment system dosing mixing device to solve the problem of uneven mixing of flake caustic soda in a pesticide box in the prior art, so that the caustic soda can be mixed fully and uniformly.
SUMMERY OF THE UTILITY MODEL
The first technical scheme of the utility model is a water treatment system adds medicine mixing arrangement, include: a medicine chest 1, a motor 2, a stirring shaft 4, an impeller 5, a water inlet pipeline 10, a centrifugal pump 12, a circulating pipeline 16 and a spray head 17,
the stirring shaft 4 is vertically arranged inside the medicine box 1, the motor 2 is arranged at the top of the medicine box 1 and is connected with the stirring shaft 4, a plurality of impellers 5 are arranged on the stirring shaft 4 at certain intervals and rotate together with the stirring shaft 4,
the impeller 5 is gradually shortened from bottom to top,
the medicine chest 1 is cylindrical, a plurality of spray heads 17 are uniformly arranged on the top of the medicine chest by taking the stirring shaft 4 as the center,
one end of the circulation duct 16 communicates with the medicine-box inlet port 7 at the bottom of the medicine box 1, the other end communicates with the plurality of spray heads 17, a centrifugal pump 12 is connected to the circulation duct 16 for causing water in the circulation duct 16 to be sprayed from the plurality of spray heads 17 into the medicine box 1,
the circulating pipeline 16 is connected with a water inlet pipeline 10 in a pipeline part on one side of the water inlet of the centrifugal pump 12 through a tee joint, and a water inlet pipeline valve 11 is arranged on the water inlet pipeline 10.
A second technical means is based on the first technical means, and the plurality of nozzles 17 are disposed at least partially outside the impeller 5 when viewed from the top down.
The third technical scheme is based on first or two arbitrary technical schemes, circulating line 16 is located still be provided with entry filter screen 9 in the pipeline part of centrifugal pump 12 water inlet one side, still set gradually check valve 13, outlet valve 15 in the pipeline part of centrifugal pump 12 delivery port one side.
The fourth technical scheme is based on the first technical scheme, the stirring shaft (4) is a plastic-lined hollow stainless steel pipe, the impeller (5) arranged on the stirring shaft (4) consists of four groups of bilaterally symmetrical stainless steel double blades, and the blades are lined with plastic.
The fifth technical solution is based on the first technical solution, and an inlet valve 8 is further arranged on the circulating pipeline 16 connected with the medicine box inlet interface 7 end.
A sixth technical solution is based on the first technical solution, and the inlet screen 9 of the centrifugal pump 12 is fixed by a flange 18.
Drawings
FIG. 1 is a schematic structural view of a chemical-adding and mixing device of a water treatment system provided by the present invention;
reference numerals:
1, a medicine chest; 2, a motor;
3, a speed reducer; 4, stirring the shaft;
5, an impeller; 6, a platform;
7, a medicine box inlet interface; 8, an inlet valve;
9, an inlet filter screen; 10, a water inlet pipeline;
11, a water inlet pipeline valve; 12, a centrifugal pump;
13, an outlet check valve; 14, a pressure gauge;
15, an outlet valve; 16, a sequencing pipeline;
17, a spray head; 18, a flange.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention more clear, the technical solutions of the present invention will be further described below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
The invention is further described with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural view of a chemical adding and mixing device of a water treatment system.
As shown in fig. 1, the dosing and mixing device of the water treatment system comprises a medicine box 1, a motor 2, a speed reducer 3, a stirring shaft 4, an impeller 5, a platform 6, a medicine box inlet interface 7 and an inlet valve 8; the device comprises an inlet filter screen 9, a water inlet pipeline 10, a water inlet pipeline valve 11, a centrifugal pump 12, an outlet check valve 13, a pressure gauge 14, an outlet valve 15, a sequential pipeline 16, a spray head 17 and a flange 18.
The medical kit 1 is the cask form, and (mixing) shaft 4 is installed perpendicularly inside medical kit 1, and motor 2 sets up and is connected with (mixing) shaft 4 at the top of medical kit 1. The stirring shaft 4 is a plastic-lined hollow stainless steel pipe. Four impellers 5 are mounted on the stirring shaft at spaced intervals to rotate with the stirring shaft 4. The impeller 5 becomes shorter gradually from bottom to top. The blades are stainless steel double blades which are bilaterally symmetrical. The bottom blade and the inner wall of the medicine box 1 have a clearance of 10 mm.
The top of the medicine chest 1 is uniformly provided with a plurality of spray heads 17 and a plurality of spray heads 17 by taking the stirring shaft 4 as the center. The nozzle 17 is made of UPVC material and has small holes with diameter of 10 mm.
The circulation line 16 is a UPVC line, one end of which communicates with the medicine-box inlet port 7 at the bottom of the medicine box 1 and the other end of which communicates with the plurality of nozzles 17, and the centrifugal pump 12 is connected to the circulation line 16 and ejects water in the circulation line 16 from the plurality of nozzles 17 into the medicine box 1. Directly below the nozzle orifice of the nozzle 17 there are 2 vanes of the impeller that do not enter the injection zone of the nozzle orifice.
The circulating pipeline 16 is connected with the inlet filter screen 9 in the pipeline part at one side of the water inlet of the centrifugal pump 12, is connected with the water inlet pipeline 10 through a tee joint, and is connected with the water inlet pipeline 10 of the medicine box inlet interface 7 through the inlet valve 8 to be provided with a water inlet pipeline valve 11.
The inlet screen 9 of the centrifugal pump 12 is secured with a flange 18. The outlet of the centrifugal pump 12 is connected to a spray head 17 through a check valve 13, a pressure gauge 14 and an outlet valve 15 by a sequential pipeline 16. The centrifugal pump 12 is a plastic pump, is resistant to acid and alkali and medicament corrosion, is integrated with a motor, is not mechanically sealed, and does not have the corrosion leakage problem.
When the chemical-adding mixing device of the water treatment system is used, sodium hydroxide is fed from a chemical-adding port not shown in the figure. The water inlet pipeline valve 11 and the inlet valve 8 are opened, and the water from the first-stage reverse osmosis enters the medicine box 1 through the water inlet pipeline 10 and the medicine box inlet interface 7. When the inflow amount of water is less than the impeller with the shortest blades (the uppermost impeller), the inlet pipe valve 11 and the inlet valve 8 are closed. The motor 2 is turned on, and the speed reducer 3 driven by the motor 2 drives the stirring shaft 4 to rotate. Because the solid liquid medicine is in the bottom of the medicine chest 1, when the blades in the bottom impeller 5 rotate, the liquid medicine can be fully stirred (coarsely stirred), and the blades 5 with different lengths can reduce the resistance of part of the liquid medicine to the blades 5, thereby saving electric energy.
The inlet valve 8 and the outlet valve 15 are opened, the stirred liquid medicine passes through the inlet valve 8 and the inlet filter screen 9, passes through the centrifugal pump 12, (the pressure gauge 14 can observe and control the mixed pressure of the medicine), passes through the check valve 13 and the outlet valve 15 from the outlet of the centrifugal pump 12 in sequence, and is uniformly sprayed into the medicine chest through four porous spray heads 17 uniformly distributed on an annular sequential pipeline 16. Under the action of the centrifugal pump 12, the sprayed water is pressurized, violent liquid flow can be formed in the medicine box 1, and the water of the spray head 17 can directly act on the blades in the bottom impeller 5, so that the impact force of the water can be fully utilized to ensure that the liquid medicine is mixed more thoroughly. The liquid medicine is conveyed, mixed and conveyed, the liquid medicine is uniformly mixed in a plurality of alternate processes, and then the liquid medicine is discharged from an inlet interface of a medicine box which is not shown in the figure for secondary reverse osmosis. In this embodiment, the circulation of the chemical solution into the chemical tank 1 is performed 4 times, 5 minutes each time, so that the alkali solution in the chemical tank 1 is sufficiently and uniformly mixed without crystallization.
In addition, when the water inlet pipeline 10 is connected with the inlet of the horizontal centrifugal pump 12, due to the arrangement of the manual valve and the flange, the operation personnel can conveniently overhaul the centrifugal pump 12 and the sequential pipeline 16 or regularly clean impurities in the liquid medicine.
According to the above, the utility model provides a water treatment system adds medicine mixing arrangement adopts the mechanical mixing mode of two kinds of differences to carry out the medicament and mixes, and initial basic mixing can be accomplished in the stirring mixture, and the centrifugal pump flows the circulation and mixes, through the flow of liquid medicine and the effect of spraying of shower nozzle for alkali lye intensive mixing in the alkali lye medicine tank is even, and no crystallization satisfies the concentration requirement that water treatment device added the medicine, has guaranteed the water stabilization of quality of second grade reverse osmosis product water, has guaranteed the whole steady operation of follow-up EDI device then. Meanwhile, the medicament is saved, and the production cost is reduced.
The above description is only the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes and alternatives that can be easily obtained by those skilled in the art within the technical scope described in the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a water treatment system adds medicine mixing arrangement which characterized in that includes: a medicine box (1), a motor (2), a stirring shaft (4), an impeller (5), a water inlet pipeline (10), a centrifugal pump (12), a circulating pipeline (16) and a spray head (17),
the stirring shaft (4) is vertically arranged in the medicine box (1), the motor (2) is arranged at the top of the medicine box (1) and is connected with the stirring shaft (4), a plurality of impellers (5) are arranged on the stirring shaft (4) at certain intervals and rotate together with the stirring shaft (4),
the impeller (5) is gradually shortened from bottom to top,
the top of the medicine chest (1) takes the stirring shaft (4) as the center and is evenly provided with a plurality of spray heads (17),
one end of the circulating pipeline (16) is communicated with a medicine box inlet interface (7) at the bottom of the medicine box (1), the other end of the circulating pipeline is communicated with the plurality of spray heads (17), a centrifugal pump (12) is connected in the circulating pipeline (16) and is used for spraying water in the circulating pipeline (16) from the plurality of spray heads (17) into the medicine box (1),
the circulating pipeline (16) is positioned in the pipeline part on one side of the water inlet of the centrifugal pump (12) and is connected with a water inlet pipeline (10) through a tee joint, and a water inlet pipeline valve (11) is arranged on the water inlet pipeline (10).
2. The water treatment system dosing mixing device of claim 1, wherein: the plurality of spray heads (17) are arranged at least outside a part of the impeller (5) when viewed from top to bottom.
3. A water treatment system dosing mixing device according to claim 1 or 2, wherein: the circulating pipeline (16) is located an inlet filter screen (9) is further arranged in the pipeline part on one side of the water inlet of the centrifugal pump (12), and a check valve (13) and an outlet valve (15) are further sequentially arranged in the pipeline part on one side of the water outlet of the centrifugal pump (12).
4. The water treatment system dosing mixing device of claim 1, wherein: the stirring shaft (4) is a plastic-lined hollow stainless steel pipe, the impeller (5) arranged on the stirring shaft (4) is composed of four groups of bilateral stainless steel double blades, and the blades are lined with plastic.
5. The water treatment system dosing and mixing device of claim 2, wherein: and an inlet valve (8) is also arranged on a connecting circulating pipeline (16) at the end of the medicine box inlet interface (7).
6. The water treatment system dosing mixing device of claim 3, wherein: the inlet screen (9) of the centrifugal pump (12) is fixed by a flange (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020337031.7U CN212151741U (en) | 2020-03-17 | 2020-03-17 | Dosing and mixing device of water treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020337031.7U CN212151741U (en) | 2020-03-17 | 2020-03-17 | Dosing and mixing device of water treatment system |
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| Publication Number | Publication Date |
|---|---|
| CN212151741U true CN212151741U (en) | 2020-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020337031.7U Active CN212151741U (en) | 2020-03-17 | 2020-03-17 | Dosing and mixing device of water treatment system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113526641A (en) * | 2021-08-13 | 2021-10-22 | 湖州名远环保科技有限公司 | Energy-concerving and environment-protective sewage purification equipment |
| CN115246685A (en) * | 2021-12-17 | 2022-10-28 | 浙江海洋大学 | Aquatic products are grown seedlings and are used water purifier |
| CN116621294A (en) * | 2023-06-15 | 2023-08-22 | 江苏省海洋水产研究所 | Net pressing type acid treatment device in semi-floating cultivation of laver |
-
2020
- 2020-03-17 CN CN202020337031.7U patent/CN212151741U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113526641A (en) * | 2021-08-13 | 2021-10-22 | 湖州名远环保科技有限公司 | Energy-concerving and environment-protective sewage purification equipment |
| CN115246685A (en) * | 2021-12-17 | 2022-10-28 | 浙江海洋大学 | Aquatic products are grown seedlings and are used water purifier |
| CN116621294A (en) * | 2023-06-15 | 2023-08-22 | 江苏省海洋水产研究所 | Net pressing type acid treatment device in semi-floating cultivation of laver |
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