Softening treatment device for treating heavy salt water by using whole membrane method

Abstract

The utility model discloses a softening treatment device for treating heavy salt water by a whole membrane method. The softening treatment device comprises a frame, a pretreatment unit, a microfiltration unit and a nanofiltration unit, a pretreatment unit, a microfiltration unit and a nanofiltration unit are sequentially installed in the frame from left to right, a support is fixedly installed on the side wall of the frame, a servo motor is fixedly installed at the bottom of the inner side of the frame and located below the pretreatment unit, and a rotating base is rotatably installed on the lower portion in the pretreatment unit. A top output shaft of the servo motor is in transmission connection with a bottom rotating shaft of the rotating base, a filter screen sleeve is fixedly mounted at the top of the rotating base, a rotating pipe is vertically and rotatably mounted at the top of the support and inserted into the filter screen sleeve, and a plurality of nozzles are fixedly mounted on the periphery of the outer wall of the rotating pipe. According to the utility model, the backwashing work of the filter screen sleeve in the pretreatment unit can be automatically realized, and the spray head can reciprocate up and down in the backwashing process, so that the washing range is more comprehensive, the cleaning speed is high, and the efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to high salt water softening treatment technical field especially relates to a softening treatment device of high salt water is handled to whole membrane method. BACKGROUND

[0002] With the rapid development of industry, a large amount of high salt water is generated in the production process of many industrial fields such as chemical industry, electric power, pharmacy and the like, these high salt water contains various soluble salts, heavy metal ions and complex organic pollutants, etc., if not properly handled and directly discharged, will cause extremely serious pollution and damage to soil, water and ecological environment, cause a series of environmental problems such as soil salinization, water eutrophication, seriously threaten ecological balance and human health.

[0003] The impurities are extremely easy to adhere to the surface of the filter screen or filter medium in many pretreatment devices after filtering high salt water for a long time, leading to the continuous increase of filtration resistance and the continuous decline of filtration efficiency, however, the existing pretreatment units mostly cannot automatically perform backwashing operation, need manual regular intervention and shutdown cleaning, which not only consumes a large amount of manpower and time cost, but also interrupts the whole high salt water treatment process during shutdown, seriously affects the continuity and efficiency of production.

[0004] Even if part of the pretreatment unit has backwashing function, the backwashing efficiency is relatively low, and the common backwashing mode is often only simply backwashed by water flow, which is difficult to completely remove stubborn impurities in the deep gap of filter screen and inside filter medium, since omnibearing and multi-angle efficient flushing cannot be realized, residual impurities will quickly accumulate again in the subsequent filtration process, so that the filter screen or filter medium needs to be backwashed frequently, further reduces the overall operation efficiency of the equipment, increases the wear and energy consumption of the equipment, and cannot meet the urgent needs of modern industry for efficient and stable treatment of high salt water.

[0005] Therefore, how to provide a softening treatment device for treating high salt water by whole membrane method is a problem to be solved by those skilled in the art. UTILITY MODEL CONTENTS

[0006] One purpose of the utility model is to provide a softening treatment device for treating high salt water by whole membrane method, which can automatically realize backwashing of the filter screen cover inside the pretreatment unit, and the spray head can reciprocate up and down during backwashing, so the flushing range is more comprehensive, and therefore the cleaning speed is fast and the efficiency is high.

[0007] The softening treatment device for treating high salt water by whole membrane method according to the utility model embodiment comprises a frame, a pretreatment unit, a microfiltration unit and a nanofiltration unit.

[0008] The frame is internally provided with, from left to right, a pretreatment unit, a microfiltration unit and a nanofiltration unit; the frame is fixedly provided with a support on the side wall; a servo motor is fixedly installed on the bottom of the frame and below the pretreatment unit; a rotating base is rotatably installed on the bottom of the pretreatment unit; the output shaft of the servo motor is in transmission connection with the rotating shaft of the rotating base; a filter screen sleeve is fixedly installed on the top of the rotating base; a rotating pipe is vertically rotatably installed on the top of the support; the rotating pipe is inserted into the filter screen sleeve; a plurality of groups of nozzles are fixedly installed on the outer wall of the rotating pipe; a guide sleeve is fixedly installed above the rotating pipe; an annular groove is formed in the outer wall of the guide sleeve; a guide rod is fixedly installed on one side of the top of the support; and one end of the guide rod is inserted into the annular groove.

[0009] Further, a first conveying pipe is arranged on one side of the bottom of the pretreatment unit; a drain hole is formed in the rotating base; the drain hole is connected with the first conveying pipe through a rotary joint; and the other end of the first conveying pipe is connected with the input end of the microfiltration unit.

[0010] Further, a second conveying pipe is installed on the bottom of the microfiltration unit; and the other end of the second conveying pipe is connected with the input end of the nanofiltration unit.

[0011] Further, a sewage outlet is arranged on the other side of the bottom of the pretreatment unit.

[0012] Further, a water inlet is arranged on one side of the top of the pretreatment unit; and the water inlet is inserted into the interior of the pretreatment unit and arranged outside the filter screen sleeve.

[0013] Further, a limiting sleeve is arranged on the inner wall of the filter screen sleeve; and the rotating pipe is liftably installed in the limiting sleeve.

[0014] Further, a drain pipe is arranged on the bottom of the nanofiltration unit; and the drain pipe penetrates through the frame.

[0015] Further, the annular groove is arranged on the outer wall of the guide sleeve in a surrounding manner; and the annular groove is formed in a closed loop by being connected at both ends.

[0016] The present application has the following beneficial effects:

[0017] The utility model discloses a servo motor drives rotary base makes filter screen cover rotate, and the external water supply system supplies water to the rotating pipe, and the water is sprayed from the nozzle to the filter screen cover and is washed all -round, and this kind of automatic washing mechanism can remove the impurity attached on the filter screen cover in time, guarantees that the filter screen cover is always in good filtration state, effectively prevents the filtration efficiency decline and filtration performance deterioration caused by impurity accumulation, and the rotating pipe is supported under the limiting sleeve and stably rotates, and relies on the cooperation of guide rod and annular groove of guide sleeve to realize stable rotation guide and up-down movement, so that the nozzle can comprehensively and evenly wash the rotating filter screen cover at different heights, further prolongs the service life of filter screen cover, reduces the maintenance cost and downtime of frequent replacement of filter screen cover, and improves the overall operation stability and continuity of the device. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings are included to provide a further understanding of the present application and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and serve to explain the present application, and do not constitute a limitation of the present application. In the drawings:

[0019] Figure 1 It is a whole structure schematic diagram of the softening treatment device for treating high-salt water by full membrane method that the utility model proposes;

[0020] Figure 2 It is a pretreatment unit opening structure schematic diagram of the softening treatment device for treating high-salt water by full membrane method that the utility model proposes;

[0021] Figure 3 It is a filter screen cover and rotating pipe dismounting structure schematic diagram of the softening treatment device for treating high-salt water by full membrane method that the utility model proposes;

[0022] Figure 4 It is a pretreatment unit inside overhead structure schematic diagram of the softening treatment device for treating high-salt water by full membrane method that the utility model proposes.

[0023] In the drawing: 1, frame;2, pretreatment unit;3, microfiltration unit;4, nanofiltration unit;5, first conveying pipe;6, second conveying pipe;7, support;8, water inlet;9, sewage outlet;10, drain pipe;11, servo motor;12, rotating pipe;13, guide sleeve;14, guide rod;15, annular groove;16, filter screen cover;17, nozzle;18, rotary base;19, drain hole;20, limiting sleeve. DETAILED DESCRIPTION

[0024] The utility model will be further explained in detail in combination with the drawings. These drawings are all simplified schematic diagrams, just with the schematic mode to explain the basic structure of the utility model, so it just shows the constitution related to the utility model.

[0025] Reference Figures 1-4 A softening treatment device for treating high-salt water by a full membrane method, comprising a frame 1, a pretreatment unit 2, a microfiltration unit 3 and a nanofiltration unit 4;

[0026] The frame 1 is internally provided with the pretreatment unit 2, the microfiltration unit 3 and the nanofiltration unit 4 from left to right in sequence, the pretreatment unit 2 is internally rotatably provided with a rotating base 18 at the bottom, the pretreatment unit 2 is provided with a first conveying pipe 5 at one side of the bottom, the rotating base 18 is provided with a drain hole 19, the drain hole 19 is connected with the first conveying pipe 5 through a rotating joint, and the other end of the first conveying pipe 5 is connected with an input end of the microfiltration unit 3;

[0027] The rotating pipe 12 is liftable and installed in the limiting sleeve 20.

[0028] Secondly, the microfiltration unit 3 is provided with a second conveying pipe 6 at the bottom, and the other end of the second conveying pipe 6 is connected with an input end of the nanofiltration unit 4;

[0029] Thirdly, the pretreatment unit 2 is provided with a water inlet 8 at one side of the top, the water inlet 8 is inserted into the interior of the pretreatment unit 2 and arranged outside the filter mesh sleeve 16;

[0030] In addition, the nanofiltration unit 4 is provided with a drain pipe 10 at the bottom, and the drain pipe 10 penetrates through the frame 1;

[0031] In this embodiment, the high-salt water to be treated is injected into the pretreatment unit 2 through the water inlet 8, and after the high-salt water enters the pretreatment unit 2, it falls outside the filter mesh sleeve 16, at which time the initial filtration work can be performed through the filter mesh sleeve 16, and the water filtered through the filter mesh sleeve 16 is conveyed into the microfiltration unit 3 through the drain hole 19 formed in the rotating base 18 and the first conveying pipe 5 connected therewith through the rotating joint for microfiltration treatment to remove some smaller impurities and other substances in the water, and the water treated through the microfiltration unit 3 is conveyed to the nanofiltration unit 4 through the second conveying pipe 6 installed at the bottom of the microfiltration unit 3, and in the nanofiltration unit 4, the water is further treated through the nanofiltration membrane and other nanofiltration processes to achieve a better softening effect on the high-salt water, and finally the treated water is discharged through the drain pipe 10 at the bottom of the nanofiltration unit 4 penetrating through the frame 1, thereby completing the entire softening treatment process of the high-salt water.

[0032] Reference Figures 1-4The frame 1 side wall is fixedly provided with a support 7, and a servo motor 11 is fixedly installed at the bottom of the inner side of the frame 1 and below the pretreatment unit 2. The top output shaft of the servo motor 11 is in transmission connection with the bottom rotating shaft of a rotating base 18. The support 7 is vertically and rotatably provided with a rotating pipe 12 inserted into a filter screen cover 16. A plurality of groups of nozzles 17 are fixedly installed around the outer wall of the rotating pipe 12. A guide sleeve 13 is fixedly installed above the rotating pipe 12, and an annular groove 15 is formed in the outer wall of the guide sleeve 13. A guide rod 14 is fixedly installed at one side of the top of the support 7, and one end of the guide rod 14 is inserted into the annular groove 15.

[0033] The other side of the bottom of the pretreatment unit 2 is provided with a blow-off port 9.

[0034] Secondly, the bottom of the rotating pipe 12 is fixedly connected with the filter screen cover 16.

[0035] In addition, the annular groove 15 is arranged around the outer wall of the guide sleeve 13, and the annular groove 15 is in closed loop at both ends.

[0036] In this embodiment, the servo motor 11 is started, the servo motor 11 drives the rotating base 18 to rotate, and then the filter screen cover 16 fixedly installed on the rotating base 18 is synchronously rotated. At the same time, an external water supply system can be connected, water is supplied into the rotating pipe 12, and the water is sprayed out through the plurality of groups of nozzles 17 fixedly installed around the outer wall of the rotating pipe 12. Since the rotating pipe 12 can be stably rotated under the support of the limiting sleeve 20 and can be stably guided to rotate by the cooperation of the guide rod 14 and the annular groove 15 of the guide sleeve 13, the rotating pipe 12 can move up and down, and the sprayed water can wash the filter screen cover 16 in all directions, so that the impurities attached to the filter screen cover 16 can be washed away in time, and the good filtering performance of the filter screen cover 16 is ensured. The impurities and waste washed down can be discharged through the blow-off port 9 installed at the other side of the bottom of the pretreatment unit 2.

[0037] Working principle: first, the high salt water to be treated is injected into the pretreatment unit 2 by the water inlet 8, the high salt water falls outside the filter screen cover 16 under the action of gravity, the larger particle impurities are intercepted outside the filter screen cover 16, the water filtered initially is transmitted through the filter screen cover 16, flows into the microfiltration unit 3 through the drain hole 19 of the rotating base 18 and the first conveying pipe 5, in the microfiltration unit 3, the more fine particle impurities in the water are further removed by using the filtering effect of the microfiltration membrane, the water treated by the microfiltration is conveyed to the nanofiltration unit 4 through the second conveying pipe 6, the nanofiltration unit 4 realizes the softening treatment of the high salt water by the characteristics of the nanofiltration membrane, and selectively separates the ions in the water according to the size and charge difference of the ions, so that the treated water reaches the standard, and finally the treated water reaches the standard is discharged from the drain pipe 10 at the bottom of the nanofiltration unit 4, in the whole filtration process, in order to ensure the filtering effect of the filter screen cover 16, the servo motor 11 is started regularly to make the rotating base 18 rotate, and the external water supply system supplies water to the rotating pipe 12, the water is sprayed from the nozzle 17 to wash the filter screen cover 16, since the rotating pipe 12 rotates in the limiting sleeve 20, and is stably rotated and lifted under the cooperation of the guide rod 14 and the annular groove 15 on the guide sleeve 13, the nozzle 17 can wash the rotating filter screen cover 16 in all directions at different heights, the impurities attached to the filter screen cover 16 are effectively removed, and the filtering performance is continuously and stably ensured, the impurities washed down are discharged from the pretreatment unit 2 through the blow-off port 9, the accumulation of the impurities is avoided to affect the overall operation efficiency and treatment effect of the device, and the continuity, efficiency and stability of the whole high salt water softening treatment process are ensured.

[0038] It can be understood that the servo motor driving mode in the utility model can be driven in the mode of external power supply line, the servo motor can be programmed and controlled by the master control system, and the control principle is realized by the existing control technology. The model of the servo motor is not limited to a single type and can be the existing type suitable for the utility model in the market.

[0039] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A softening treatment device for full-membrane process treatment of high-salinity water, characterized by Frame (1), pretreatment unit (2), microfiltration unit (3) and nanofiltration unit (4) are included. The frame (1) is internally sequentially mounted with the pretreatment unit (2), the microfiltration unit (3) and the nanofiltration unit (4) from left to right, the frame (1) is fixedly installed with the support (7) on the side wall, the servo motor (11) is fixedly installed on the bottom of the inside of the frame (1) and below the pretreatment unit (2), the rotatable base (18) is rotatably installed inside and below the pretreatment unit (2), the output shaft of the top of the servo motor (11) and the rotating shaft of the bottom of the rotatable base (18) are in transmission connection, the filter screen cover (16) is fixedly installed on the top of the rotatable base (18), the rotating pipe (12) is vertically rotatably installed on the top of the support (7), the rotating pipe (12) is inserted into the filter screen cover (16), a plurality of groups of nozzles (17) are fixedly installed on the outer wall of the rotating pipe (12), the guide sleeve (13) is fixedly sleeved on the rotating pipe (12), the annular groove (15) is formed on the outer wall of the guide sleeve (13), the guide rod (14) is fixedly installed on one side of the top of the support (7), and one end of the guide rod (14) is inserted into the annular groove (15).

2. The softening treatment device for treating high-salinity water by a full-membrane process according to claim 1, characterized by The first conveying pipe (5) is arranged on one side of the bottom of the pretreatment unit (2), the drain hole (19) is formed in the rotatable base (18), and the drain hole (19) is connected with the first conveying pipe (5) through a rotary joint.

3. The softening treatment device for treating high-salinity water by a full-membrane process according to claim 1, characterized by The second conveying pipe (6) is installed at the bottom of the microfiltration unit (3), and the other end of the second conveying pipe (6) is connected with the input end of the nanofiltration unit (4).

4. The softening treatment device for treating high-salinity water by a full-membrane process according to claim 1, characterized by The blowdown port (9) is installed on the other side of the bottom of the pretreatment unit (2).

5. The softening treatment device for treating high-salinity water by a full-membrane method according to claim 1, characterized by The water injection port (8) is arranged on one side of the top of the pretreatment unit (2) and inserted into the inside of the pretreatment unit (2) and arranged outside the filter screen cover (16).

6. The softening treatment device for high-salinity water treatment by a full-membrane process according to claim 1, characterized by The limiting sleeve (20) is arranged on the inner wall of the filter screen cover (16), and the rotating pipe (12) is liftably installed in the limiting sleeve (20).

7. The softening treatment device for high-salinity water by a full-membrane process according to claim 1, characterized by The drain pipe (10) is arranged at the bottom of the nanofiltration unit (4) and penetrates the frame (1).

8. The softening treatment device for high-salinity water treatment by a full-membrane process according to claim 1, characterized by The annular groove (15) is arranged on the outer wall of the guide sleeve (13) and forms a closed loop by connecting the two ends.

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