Environment-friendly concrete water-reducing agent reverse osmosis equipment

Abstract

The utility model discloses an environmental protection type reverse osmosis equipment for concrete water reducing agent relates to environmental protection water treatment technical field, including base, the upper end of base is set up centrifugal pump, quartz sand filter, activated carbon filter, precision filter and reverse osmosis filter with each other in series, be provided with mixing spare between precision filter and reverse osmosis filter, the mixing spare includes the tubular body with precision filter and reverse osmosis filter intercommunication, the auger is rotationally arranged in the tubular body, and the leading edge of auger is equipped with no. The trailing edge of auger is provided with no. The utility model has the advantages of: the auger rotates with the water flow, and no. The auger can break the pipeline center and the dead flow area of the wall, realize the triple dynamic mixing of the reagent and the water flow, ensure that the scale inhibitor and the dispersing agent are in contact with the scale ion in the water flow and inhibit its crystallization, prevent the irreversible damage of the membrane element.

Description

Technical Field

[0001] This utility model relates to the field of environmental water treatment technology, and in particular to an environmentally friendly reverse osmosis device for concrete water-reducing agents. Background Technology

[0002] Water-reducing agents are commonly used in the mixing of environmentally friendly concrete. The core purpose of using water-reducing agents is to optimize the balance between workability and strength. When the water-cement ratio (the proportion of water to cement and other cementitious materials) remains constant, water-reducing agents can disperse cement particles, reduce agglomeration, lower the viscosity of concrete, and improve fluidity and workability, making it easier to pour and vibrate (especially for complex components). Reverse osmosis equipment is often used in the production of water-reducing agents because it can remove impurities such as salts, organic matter, and colloids from the production water (such as water used for polymerization reactions and dilution of ingredients), preventing impurities from affecting the polymerization efficiency, product purity, and performance stability of the water-reducing agent (such as reducing the water reduction rate and causing concrete bleeding).

[0003] Existing reverse osmosis equipment typically includes a pretreatment unit (such as filter cartridges and activated carbon), a reverse osmosis membrane module (the core component, mostly spiral-wound / tubular / hollow fiber membrane elements, with polyamide composite membranes as the primary material), and a booster pump. Its working principle is as follows: First, the raw water is pretreated by the pretreatment unit (such as filter cartridges and activated carbon) to remove suspended solids, colloids, and other impurities. Then, the booster pump applies pressure exceeding the osmotic pressure of the solution to the raw water, forcing it to pass through the semi-permeable surface of the reverse osmosis membrane (allowing only small molecules such as water molecules to pass through, while retaining ions, organic matter, microorganisms, and other impurities). The water that permeates through the membrane becomes the purified product water, while the high-concentration solution that does not permeate (containing retained impurities) is discharged as concentrate, thus achieving water purification or substance separation.

[0004] Existing reverse osmosis (RO) equipment suffers from localized scaling due to uneven reagent distribution. Currently, to prevent excessive clogging of the RO membrane, scale inhibitors and dispersants are typically delivered into the pipe body via a dosing pipe before the water enters the membrane. Fixed flow-turbing elements (such as spiral vanes, perforated plates, or honeycomb baffles) are installed inside the pipe, causing the water flow to be divided, twisted, and impacted for mixing. However, this is primarily static mixing within the pipe, easily creating "dead flow zones" (pipe center / wall), leading to excessively uneven reagent distribution and increased calcium content in the water. 2+ Mg 2+ If scaling ions such as SiO2 are not sufficiently suppressed, hard crystals will form on the surface of the reverse osmosis membrane, causing irreversible damage. Therefore, we propose an environmentally friendly reverse osmosis device for concrete water-reducing agents to solve the problems encountered in existing technologies. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] An environmentally friendly reverse osmosis device for concrete water-reducing agents includes a base. A centrifugal pump, a quartz sand filter, an activated carbon filter, a precision filter, and a reverse osmosis filter are connected in series at the upper end of the base. A mixing element is provided between the precision filter and the reverse osmosis filter. The mixing element includes a pipe body that communicates with the precision filter and the reverse osmosis filter. An auger is rotatably provided inside the pipe body. The leading edge of the auger is provided with a first jet hole, and the trailing edge of the auger is provided with a second jet hole.

[0008] As a preferred embodiment of the reverse osmosis equipment for environmentally friendly concrete water-reducing agent described in this utility model, wherein: a No. 1 jet hole is axially provided at one-third of the leading edge of the auger.

[0009] As a preferred embodiment of the reverse osmosis equipment for environmentally friendly concrete water-reducing agent described in this utility model, the first jet hole is tapered.

[0010] In a preferred embodiment of the reverse osmosis equipment for environmentally friendly concrete water-reducing agents described in this utility model, the diameter of the inlet of the first jet hole is smaller than its end diameter.

[0011] As a preferred embodiment of the reverse osmosis equipment for environmentally friendly concrete water-reducing agent described in this utility model, wherein: a second jet hole is radially provided at the rear edge of the auger.

[0012] As a preferred embodiment of the reverse osmosis equipment for environmentally friendly concrete water-reducing agents described in this utility model, a conveying pipe is provided between the output end of the centrifugal pump and the inlet end of the quartz sand filter, and the output end of the quartz sand filter is also connected to the inlet end of the activated carbon filter through the conveying pipe.

[0013] In a preferred embodiment of the reverse osmosis equipment for environmentally friendly concrete water-reducing agents described in this utility model, the output end of the activated carbon filter is connected to the inlet end of the precision filter via a delivery pipe.

[0014] As a preferred embodiment of the reverse osmosis equipment for environmentally friendly concrete water-reducing agents described in this utility model, the output end of the precision filter is connected to the inlet end of the reverse osmosis filter through a delivery pipe, and the output end of the reverse osmosis filter is provided with a wastewater pipe and a clean water pipe.

[0015] As a preferred embodiment of the reverse osmosis equipment for environmentally friendly concrete water-reducing agent described in this utility model, a booster pump is provided around the delivery pipe between the precision filter and the reverse osmosis filter, and a chemical inlet pipe is also provided around the delivery pipe between the precision filter and the reverse osmosis filter for connection with the dosing device.

[0016] As a preferred embodiment of the reverse osmosis equipment for environmentally friendly concrete water-reducing agent described in this utility model, the two ends of the pipe are respectively connected to the conveying pipe provided between the precision filter and the reverse osmosis filter. A fixing rod is integrally provided inside the pipe. A bearing is fixed at one end of the fixing rod. A connecting shaft is welded to the inner ring of the bearing. The outer surface of the connecting shaft is welded to the core wall of the auger shaft.

[0017] The beneficial effects of this invention are as follows: The equipment incorporates a mixing component with a rotatable auger on the conveying pipe between the precision filter and the reverse osmosis filter. The auger rotates with the water flow; its leading edge's conical No. 1 jet orifice increases the jet range, while its trailing edge's radial No. 2 jet orifice breaks up the dead flow zones in the pipe center and on the wall, achieving a triple dynamic mixing of the agent and water flow through axial dispersion, radial disturbance, and shearing. This ensures that the scale inhibitor and dispersant react with the Ca in the water flow. 2+ Mg 2+ The process ensures that scale-forming ions such as SiO2 are in full contact with each other and inhibits their crystallization, thus preventing the formation of hard crystals on the membrane surface of the reverse osmosis filter and preventing irreversible damage to the membrane element. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0019] Figure 1 This is a schematic diagram of a reverse osmosis device for an environmentally friendly concrete water-reducing agent.

[0020] Figure 2 A top view of a reverse osmosis device for an environmentally friendly concrete water-reducing agent.

[0021] Figure 3 This is a cross-sectional view of a reverse osmosis equipment mixing component for an environmentally friendly concrete water-reducing agent.

[0022] Figure 4 A reverse osmosis device for an environmentally friendly concrete water-reducing agent Figure 3 Enlarged schematic diagram of point a in the middle.

[0023] Figure 5 This is a cross-sectional view of a reverse osmosis equipment mixing component for an environmentally friendly concrete water-reducing agent, taken from another perspective.

[0024] The following are the labels in the diagram: 1. Base; 2. Centrifugal pump; 3. Quartz sand filter; 4. Activated carbon filter; 5. Precision filter; 6. Reverse osmosis filter; 7. Delivery pipe; 8. Booster pump; 9. Mixing component; 91. Pipe body; 92. Screwdriver; 93. No. 1 jet hole; 94. No. 2 jet hole; 95. Bearing; 96. Connecting shaft; 97. Fixing rod; 10. Drug inlet pipe. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0028] Example 1:

[0029] Reference Figures 1 to 5 This is the first embodiment of the present invention. This embodiment provides an environmentally friendly reverse osmosis device for concrete water reducing agent, including a base 1. A centrifugal pump 2, a quartz sand filter 3, an activated carbon filter 4, a precision filter 5 and a reverse osmosis filter 6 are connected in series at the upper end of the base 1. A mixing component 9 is provided between the precision filter 5 and the reverse osmosis filter 6. The mixing component 9 includes a pipe body 91 that communicates with the precision filter 5 and the reverse osmosis filter 6. An auger 92 is rotatably provided inside the pipe body 91. The front edge of the auger 92 is provided with a first jet hole 93 and the rear edge of the auger 92 is provided with a second jet hole 94.

[0030] The base 1 provides installation support for each piece of equipment. Centrifugal pump 2, quartz sand filter 3 and other equipment are connected in series to form an orderly treatment process, realizing the step-by-step filtration and purification of the water to be treated. The mixing component 9 between the precision filter 5 and the reverse osmosis filter 6 is the core functional component. Its tube body 91 provides space for the mixing of water flow and reagents. The internal rotating auger 92, together with the first jet hole 93 at the front edge and the second jet hole 94 at the rear edge, enhances the mixing effect of reagents and water flow through axial jet, radial jet and spiral shearing action, ensuring that scale inhibitors and other reagents play a full role and ensuring the stable operation of the reverse osmosis filter 6.

[0031] It should be noted that the quartz sand filter 3 has an internal structure centered on a support layer (pebbles) and an upper layer of quartz sand filter media, equipped with water distribution and collection devices. Its working principle is to utilize the pores between quartz sand particles to trap suspended impurities, colloids, and other large particulate pollutants in the water, achieving preliminary water purification through physical filtration. The activated carbon filter 4 is filled with granular or columnar activated carbon, paired with water distribution and collection components. Its working principle relies on the rich pore structure and adsorption capacity of activated carbon to adsorb organic matter, pigments, odors, and some heavy metal ions in the water, improving the sensory indicators of the water quality. The precision filter 5 has a core structure of a high-strength filter housing and a built-in precision filter membrane (such as PP cotton or pleated membrane), with a membrane pore size typically between 1-5 μm. Its working principle is to trap residual fine impurities, colloids, and microorganisms in the water through the micropores of the filter membrane, providing qualified feed water for subsequent reverse osmosis treatment. Reverse osmosis filter 6: Its internal core is a reverse osmosis membrane element (wound or hollow fiber type), equipped with a pressure shell, water distribution system, and concentrate / product water channels. Its working principle involves using high pressure to force water molecules through the semi-permeable surface of the reverse osmosis membrane, while salt ions and large molecular pollutants are retained, achieving deep desalination and purification of the water, ultimately producing purified water and wastewater containing concentrate. The above description is existing technology and will not be elaborated further.

[0032] Example 2:

[0033] Reference Figure 4 and Figure 1 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0034] Specifically, Figure 4 In the middle, a jet hole 93 is axially arranged at one-third of the leading edge of the auger 92;

[0035] It provides an axial jet mixing channel for the reagent and water flow, and its rotation enables dynamic changes in the jet direction to avoid mixing blind spots.

[0036] Specifically, Figure 4 In the middle, the first jet orifice 93 is tapered. The diameter of the inlet of the first jet orifice 93 is smaller than its end diameter;

[0037] By utilizing throttling and diffusion effects, the agent is ejected at high speed by high-pressure water flow and broken into tiny droplets, thus enhancing the initial dispersion effect.

[0038] Specifically, Figure 4 In the middle, a second jet hole 94 is radially arranged at the rear edge of the auger 92;

[0039] Through the second jet orifice 94, the screw conveyor 92 can form a radial jet by means of centrifugal force when rotating, breaking the dead flow zone between the center of the pipe and the pipe wall, and further tearing the drug droplets and promoting diffusion through cross disturbance.

[0040] Specifically, Figure 1 In this system, a delivery pipe 7 is installed between the output end of centrifugal pump 2 and the inlet end of quartz sand filter 3. The output end of quartz sand filter 3 is also connected to the inlet end of activated carbon filter 4 via delivery pipe 7. The output end of activated carbon filter 4 is connected to the inlet end of precision filter 5 via delivery pipe 7. The output end of precision filter 5 is connected to the inlet end of reverse osmosis filter 6 via delivery pipe 7. The output end of reverse osmosis filter 6 is equipped with a wastewater pipe and a purified water pipe.

[0041] Centrifugal pump 2 is connected to each filter via delivery pipe 7, forming a continuous and stable water flow path, ensuring that the water to be treated flows sequentially through quartz sand filter 3, activated carbon filter 4, precision filter 5 and reverse osmosis filter 6, achieving step-by-step filtration.

[0042] Specifically, Figure 1 In the middle, a booster pump 8 is installed around the delivery pipe 7 between the precision filter 5 and the reverse osmosis filter 6, and a drug inlet pipe 10 is also installed around the delivery pipe 7 between the precision filter 5 and the reverse osmosis filter 6 for connecting to the drug dosing device.

[0043] The booster pump 8 provides high-pressure flow to the water in the pipe 91, drives the screw conveyor 92 to rotate and enhances the jet mixing effect. The inlet pipe 10 enables the precise addition of scale inhibitors and dispersants to the water flow, providing a chemical basis for scale inhibition.

[0044] Example 3:

[0045] Reference Figure 5 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0046] Specifically, Figure 5 In the middle, the two ends of the tube body 91 are respectively connected to the conveying pipe 7 between the precision filter 5 and the reverse osmosis filter 6. A fixing rod 97 is integrally provided inside the tube body 91. A bearing 95 is fixed at one end of the fixing rod 97. A connecting shaft 96 is welded to the inner ring of the bearing 95. The outer surface of the connecting shaft 96 is welded to the core wall of the auger 92.

[0047] The combination structure of the fixing rod 97, bearing 95 and connecting shaft 96 inside the tube 91 provides stable and low-resistance rotational support for the auger 92, ensuring its reliable operation under water flow impact to achieve dynamic mixing.

[0048] Working principle: When the centrifugal pump 2 is started, the water to be treated is output from the centrifugal pump 2 and enters the quartz sand filter 3 through the conveying pipe 7. The water treated by the quartz sand filter 3 flows into the activated carbon filter 4 through the conveying pipe 7, and then enters the precision filter 5 through the conveying pipe 7 from the output end of the activated carbon filter 4. The water filtered by the precision filter 5 flows through the pipe body 91 of the mixing component 9 through the conveying pipe 7.

[0049] After the water flows into the pipe 91 of the mixing component 9, it forms a high-pressure flow under the pressure of the booster pump 8. The high-pressure water flow impacts the spiral blades of the auger 92, causing the auger 92 to rotate at high speed. The conical No. 1 jet hole 93 axially set at one-third of the leading edge of the auger 92 forms an axial jet channel when rotating. The high-pressure water flow and the agent injected by the inlet pipe 10 first converge at the front end of the pipe 91. With the throttling and diffusion effect of the conical No. 1 jet hole 93, the agent is ejected at high speed by the high-pressure water flow from the No. 1 jet hole 93. During the jetting process, the agent is broken into tiny droplets. At the same time, the rotation of the auger 92 causes the jetting direction of the No. 1 jet hole 93 to continuously change with the spiral trajectory, avoiding the formation of local mixing blind areas by concentrated jetting.

[0050] Subsequently, the water carrying the agent flows towards the rear end of the pipe body 91. The No. 2 jet hole 94 radially set at the rear edge of the auger 92 forms a radial jet when it rotates. Using the centrifugal force generated by the rotation of the auger 92, the water and agent in the central area and near the pipe wall of the pipe body 91 are simultaneously jetted to all sides, breaking the dead flow zone in the center of the pipe where the flow velocity is fast and the mixing is shallow, and the flow velocity in the pipe wall is slow and easy to accumulate. The radial jet and the axial water flow form a cross disturbance, further tearing the agent droplets and promoting their diffusion in the water flow.

[0051] Simultaneously, the spiral blades of the auger 92 exert a shearing effect on the mixing system within the tube 91 during rotation. This, combined with the axial diffusion jet from the first jet hole 93 and the radial disturbance jet from the second jet hole 94, achieves a triple mixing effect of axial dispersion, radial disturbance, and shearing fragmentation. This allows the reagent and water flow to form a uniformly dispersed mixture over a short distance, ensuring that the scale inhibitor and dispersant can react with the Ca in the water flow before entering the reverse osmosis filter 6. 2+ Mg 2+ It ensures full contact with scale-forming ions such as SiO2, avoiding scale problems caused by insufficient local agent concentration.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An environmentally friendly reverse osmosis device for concrete water-reducing agents, comprising a base (1), wherein a centrifugal pump (2), a quartz sand filter (3), an activated carbon filter (4), a precision filter (5), and a reverse osmosis filter (6) are connected in series at the upper end of the base (1), characterized in that: A mixing element (9) is provided between the precision filter (5) and the reverse osmosis filter (6). The mixing element (9) includes a tube (91) that communicates with the precision filter (5) and the reverse osmosis filter (6). An auger (92) is rotatably arranged inside the tube (91), and the leading edge of the auger (92) is provided with a first jet hole (93), and the trailing edge of the auger (92) is provided with a second jet hole (94).

2. The reverse osmosis equipment for environmentally friendly concrete water-reducing agents as described in claim 1, characterized in that: A jet hole (93) is axially provided at one-third of the leading edge of the auger (92).

3. The reverse osmosis equipment for environmentally friendly concrete water-reducing agents as described in claim 2, characterized in that: The first jet hole (93) is tapered.

4. The reverse osmosis equipment for environmentally friendly concrete water-reducing agents as described in claim 3, characterized in that: The diameter of the inlet of the No. 1 jet hole (93) is smaller than its end diameter.

5. The reverse osmosis equipment for environmentally friendly concrete water-reducing agents as described in claim 4, characterized in that: The screw conveyor (92) is provided with a second jet hole (94) radially at its rear edge.

6. The reverse osmosis equipment for environmentally friendly concrete water-reducing agents as described in claim 1, characterized in that: A delivery pipe (7) is provided between the output end of the centrifugal pump (2) and the inlet end of the quartz sand filter (3). The output end of the quartz sand filter (3) is also connected to the inlet end of the activated carbon filter (4) through the delivery pipe (7).

7. The reverse osmosis equipment for environmentally friendly concrete water-reducing agents as described in claim 6, characterized in that: The output end of the activated carbon filter (4) is connected to the inlet end of the precision filter (5) through the delivery pipe (7).

8. The reverse osmosis equipment for environmentally friendly concrete water-reducing agents as described in claim 7, characterized in that: The output end of the precision filter (5) is connected to the inlet end of the reverse osmosis filter (6) through the delivery pipe (7). The output end of the reverse osmosis filter (6) is equipped with a wastewater pipe and a clean water pipe.

9. The reverse osmosis equipment for environmentally friendly concrete water-reducing agents as described in claim 8, characterized in that: A booster pump (8) is provided around the delivery pipe (7) between the precision filter (5) and the reverse osmosis filter (6). A drug inlet pipe (10) is also provided around the delivery pipe (7) between the precision filter (5) and the reverse osmosis filter (6) for connecting to the drug dosing device.

10. The reverse osmosis equipment for environmentally friendly concrete water-reducing agents as described in claim 6, characterized in that: The two ends of the tube body (91) are respectively connected to the conveying pipe (7) between the precision filter (5) and the reverse osmosis filter (6). A fixing rod (97) is integrally provided inside the tube body (91). A bearing (95) is fixed at one end of the fixing rod (97). A connecting shaft (96) is welded to the inner ring of the bearing (95). The outer surface of the connecting shaft (96) is welded to the core wall of the auger (92).

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