Multistage membrane distillation treatment device

Abstract

The utility model belongs to the technical field of wastewater treatment, and particularly relates to a multistage membrane distillation treatment device which comprises a fixed plate, the top of the fixed plate is fixedly connected with a treatment box; the top of the treatment box is communicated with a feeding pipe; a plurality of drawing boxes are mounted in the middle of the treatment box; the top of the fixed plate is fixedly connected with a water pump and a distillation mechanism; the water pump is connected with the treatment box through a pipeline; the water pump is connected with the distillation mechanism through a pipeline; the top of the distillation mechanism is communicated with a gas outlet pipe; a fixed rod is fixedly connected to the inner side wall of the drawing box; the middle of the fixing rod is slidably connected with a brush plate. By means of the structure, the treatment box and the drawing box are arranged, waste water can be conveniently filtered before being distilled, and the situation that impurities in the waste water enter the distillation mechanism, consequently, target substances cannot be effectively separated, and waste water treatment is affected is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to wastewater treatment technical field, specifically a kind of multistage membrane distillation treatment device. BACKGROUND

[0002] Multistage membrane distillation is a kind of multistage separation process using membrane distillation technology, mainly used in wastewater treatment and seawater desalination and other fields, can handle high salinity, high-pollution industrial wastewater and domestic sewage to reduce environmental pollution.

[0003] Multistage membrane distillation is based on the principle of membrane distillation, using hydrophobic microporous membrane to separate solutions of different temperatures, the vapor pressure difference on both sides of the membrane is used as mass transfer driving force, water in hot side solution evaporates to form steam, then steam diffuses through membrane hole to cold side and condenses into fresh water, so as to realize the separation and purification of water, in long time use observation, it is found that when treating industrial wastewater, there are many particulate impurities in wastewater, when impurities enter distillation equipment, it will affect target substance separation and reduce separation effect, and scaling and corrosion problems will be caused.

[0004] Therefore, the utility model provides a kind of multistage membrane distillation treatment device. UTILITY MODEL CONTENT

[0005] In order to make up for the deficiencies of the prior art, solve at least one problem raised in the background art, a multistage membrane distillation treatment device is proposed.

[0006] The utility model solves the technical scheme that the utility model discloses a kind of multistage membrane distillation treatment device, including fixed plate;The fixed plate top is fixedly connected with processing box;The processing box top is communicated with feed pipe;The processing box middle part is installed with multiple extraction boxes;The fixed plate top is fixedly connected with water pump and distillation mechanism;The water pump is connected with processing box by pipeline;The water pump is connected with distillation mechanism by pipeline;The distillation mechanism top is communicated with outlet pipe;Through the above structure, processing box and extraction box are set, can be filtered to wastewater before distillation, to reduce the impurities in wastewater into distillation mechanism, cause target substance cannot be effectively separated, and affect the condition of wastewater treatment.

[0007] Preferably, the inner wall of the extraction box is fixedly connected with a fixed rod;The fixed rod middle part is slidably connected with a brush plate;The brush plate side wall and the extraction box inner wall are both fixedly connected with a magnet piece;Through the above structure, fixed rod, brush plate and magnet piece are set, to facilitate cleaning extraction box, to reduce the condition that impurities adhere to the bottom of extraction box and are difficult to remove.

[0008] Preferably, the processing box side wall is provided with a plurality of spring pins; the spring pins are arranged correspondingly with the drawer; the drawer side wall is fixedly connected with a fixing buckle; through the above structure, the spring pins and the fixing buckle are arranged, which can improve the stability of the position of the drawer placed in the processing box and reduce the situation that the drawer is taken out of the processing box.

[0009] Preferably, the water tank is arranged in the middle of the air outlet pipe; the water tank top is communicated with a water inlet pipe; the water tank bottom is communicated with a water outlet pipe; the water outlet pipe middle is provided with a control valve; the air outlet pipe side wall is fixedly connected with a plurality of fins; the fins are arranged in the water tank; through the above structure, the water tank, the water inlet pipe and the water outlet pipe and the fins are arranged, which can facilitate the waste heat utilization of the steam, improve the energy utilization efficiency and reduce the waste, and the fins can improve the contact surface of the air outlet pipe and the water, thereby improving the heating effect on the water.

[0010] Preferably, the water tank side wall is fixedly connected with thermal insulation cotton; the thermal insulation cotton is wrapped on the surface of the water tank; through the above structure, the thermal insulation cotton is arranged, which can reduce the heat loss of the water tank to the outside.

[0011] Preferably, the drawer side wall is fixedly connected with a sealing ring; the sealing ring is made of flexible silica gel material; through the above structure, the sealing ring is arranged, which can reduce the leakage of waste water from the connection between the drawer and the processing box.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The multi-stage membrane distillation treatment device, through the arrangement of the processing box and the drawer, can facilitate the filtration of waste water before distillation, so as to reduce the impurities in the waste water into the distillation mechanism, which can cause the target substance to be difficult to separate effectively and affect the waste water treatment.

[0014] 2. The multi-stage membrane distillation treatment device, through the arrangement of the fixing rod, the brush plate and the magnet piece, can facilitate the cleaning of the drawer, so as to reduce the situation that the impurities adhere to the bottom of the drawer and are difficult to remove. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further described below in combination with the drawings.

[0016] Figure 1 It is the perspective view of the utility model;

[0017] Figure 2 It is the structure schematic view of the processing box in the utility model;

[0018] Figure 3 It is the structure schematic view of the drawer in the utility model;

[0019] Figure 4 It is the structure schematic view of the water tank in the utility model.

[0020] Legend:

[0021] 1. Fixing plate; 11. Processing box; 12. Drawer box; 13. Water pump; 14. Distillation mechanism; 15. Gas outlet pipe; 16. Feed pipe; 2. Fixing rod; 21. Brush plate; 22. Magnetic sheet; 3. Spring pin; 31. Fixing buckle; 4. Water tank; 41. Water inlet pipe; 42. Water outlet pipe; 43. Fins; 5. Insulation cotton; 6. Sealing ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Specific implementation examples are given below.

[0024] like Figures 1 to 3 As shown in the embodiment of this utility model, a multi-stage membrane distillation treatment device includes a fixed plate 1; a treatment box 11 is fixedly connected to the top of the fixed plate 1; a feed pipe 16 is connected to the top of the treatment box 11; multiple drawers 12 are installed in the middle of the treatment box 11; a water pump 13 and a distillation mechanism 14 are fixedly connected to the top of the fixed plate 1; the water pump 13 is connected to the treatment box 11 through a pipe; the water pump 13 is connected to the distillation mechanism 14 through a pipe; an exhaust pipe 15 is connected to the top of the distillation mechanism 14; during operation, the wastewater pipe is connected to the feed pipe 16. When the wastewater enters the treatment box 11, it will pass through multiple drawers 12 and then flow to the bottom of the treatment box 11. At this time, the bottom of the drawers 12 has a mesh structure, which can be used to treat the wastewater. The water is filtered to remove residues and particulate matter from the wastewater. The mesh sizes of the multiple drawers 12 are different, which allows for graded filtration of the wastewater. When the filtered wastewater enters the bottom of the treatment tank 11, the water pump 13 can be started to extract the wastewater and send it to the distillation mechanism 14 for distillation. The generated steam will be discharged from the steam outlet 15. After distillation, the drawers 12 can be pulled out, the filtered impurities poured out, and then inserted back into the treatment tank 11. Through the above structure, the treatment tank 11 and the drawers 12 are set up to facilitate the filtration of wastewater before distillation, thereby reducing the amount of impurities in the wastewater entering the distillation mechanism 14, which could prevent the target substances from being effectively separated and affect the wastewater treatment.

[0025] like Figure 3As shown, the inner wall of the box 12 is fixed with a fixed rod 2; the middle part of the fixed rod 2 is slidably connected with a brush plate 21; the side wall of the brush plate 21 and the inner wall of the box 12 are both fixed with a magnet piece 22; during the cleaning of the impurities filtered in the box 12, the surface of the box 12 can be brushed by repeatedly pulling the brush plate 21, so that the impurities adhered to the bottom of the box 12 are cleaned, and after cleaning, the magnet pieces 22 are close to each other and are attracted together, so that the brush plate 21 is fixed in position. Through the above structure, the fixed rod 2, the brush plate 21 and the magnet piece 22 are arranged, which can facilitate the cleaning of the box 12, so as to reduce the situation that the impurities adhered to the bottom of the box 12 are difficult to remove.

[0026] As shown in Figure 2 With Figure 3 As shown, the side wall of the processing box 11 is provided with a plurality of spring pins 3; the spring pins 3 are correspondingly arranged with the box 12; the side wall of the box 12 is fixed with a fixed buckle 31; during the placement of the box 12 in the processing box 11, the spring pins 3 can be pulled up, then the box 12 is inserted into the processing box 11, and then the spring pins 3 are released to rebound and descend, at this time the spring pins 3 are inserted into the fixed buckle 31, so that the position of the box 12 is fixed. Through the above structure, the spring pins 3 and the fixed buckle 31 are arranged, which can improve the stability of the position of the box 12 placed in the processing box 11, and reduce the situation that the box 12 is pulled out of the processing box 11.

[0027] As shown in Figure 1 With Figure 4 As shown, the middle part of the air outlet pipe 15 is fixed with a water tank 4; the top of the water tank 4 is communicated with a water inlet pipe 41; the bottom of the water tank 4 is communicated with a water outlet pipe 42; the middle part of the water outlet pipe 42 is provided with a control valve; the side wall of the air outlet pipe 15 is fixed with a plurality of fins 43; the fins 43 are located inside the water tank 4; during work, the external clean water source is connected to the water inlet pipe 41 and water is injected into the water tank 4, when the excess steam is discharged from the air outlet pipe 15, the air outlet pipe 15 is heated, when the heat on the air outlet pipe 15 is conducted to the water tank 4, it passes through the plurality of fins 43 to heat the water in the water tank 4, then the heated water can be discharged from the water outlet pipe 42 for use, so that the waste heat of the steam can be utilized, through the above structure, the water tank 4, the water inlet pipe 41 and the water outlet pipe 42 and the fins 43 are arranged, which can facilitate the utilization of the waste heat of the steam, improve the energy utilization efficiency and reduce waste, and the fins 43 can increase the contact area of the air outlet pipe 15 and the water, so as to improve the heating effect of the water.

[0028] As shown in Figure 4As shown, the side wall of the water tank 4 is fixed with insulation cotton 5; the insulation cotton 5 covers the surface of the water tank 4; during operation, when the water in the water tank 4 is heated, it will lose heat to the outside. At this time, the insulation cotton 5 is located outside the water tank 4 and can keep the inside of the water tank 4 warm. Through the above structure, the insulation cotton 5 can reduce the loss of heat from the water tank 4 to the outside.

[0029] like Figure 3 As shown, a sealing ring 6 is fixed to the side wall of the drawer box 12; the sealing ring 6 is made of flexible silicone; during operation, when the drawer box 12 is placed into the treatment box 11, the sealing ring 6 will seal the connection between the drawer box 12 and the treatment box 11. Through the above structure, the sealing ring 6 can reduce the leakage of wastewater from the connection between the drawer box 12 and the treatment box 11.

[0030] like Figure 4 As shown, the fin 43 is made of copper. Through the above structure, the copper fin 43 can reduce corrosion damage and improve service life due to its stable chemical properties.

[0031] Working principle: the wastewater pipeline is connected with the feeding pipe 16, when the wastewater enters the inside of the treatment box 11, it will flow to the bottom of the treatment box 11 through the multiple suction boxes 12, at this time, the bottom of the suction box 12 is in a mesh structure, which can filter the wastewater, so as to filter out the residues and particulate matters in the wastewater, and the mesh sizes of the multiple suction boxes 12 are different, which can realize the graded filtration of the wastewater, the filtered wastewater can be pumped out through the water pump 13 when entering the bottom of the treatment box 11, and then sent into the distillation mechanism 14 for distillation treatment, the generated steam will be discharged from the air outlet pipe 15, when the distillation is finished, the suction box 12 can be pulled out, the filtered impurities can be poured out and then inserted back into the treatment box 11, when cleaning the impurities filtered in the suction box 12, the surface of the suction box 12 can be brushed through repeatedly pulling the brush plate 21, so as to clean the impurities adhered to the bottom of the suction box 12, after cleaning, the magnet pieces 22 are close to each other and are attracted together, so as to fix the position of the brush plate 21, when placing the suction box 12 in the treatment box 11, the spring pin 3 can be pulled up, then the suction box 12 is inserted into the treatment box 11, and then the spring pin 3 is released to rebound and drop, at this time, the spring pin 3 is inserted into the fixed buckle 31, so as to fix the position of the suction box 12, the external clean water source is connected to the water inlet pipe 41 and water is injected into the water tank 4, when the excess steam is discharged from the air outlet pipe 15, the air outlet pipe 15 is heated, when the heat on the air outlet pipe 15 is conducted to the water tank 4, it passes through the multiple fins 43 to heat the water in the water tank 4, then the heated water can be discharged from the water outlet pipe 42 for use, so as to utilize the waste heat of the steam, when the water in the water tank 4 is heated, it loses temperature to the outside, at this time, the heat preservation cotton 5 outside the water tank 4 can heat preserve the inside of the water tank 4, when the suction box 12 is placed in the treatment box 11, the sealing ring 6 seals the connection between the suction box 12 and the treatment box 11.

[0032] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, the above examples and descriptions in the specification are only to illustrate the principles of the present application, without departing from the spirit and scope of the present application, the present application can have various changes and improvements, which all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A multi-stage membrane distillation treatment device comprising a fixed plate (1); characterized in that: The top of the fixed plate (1) is fixedly connected with a treatment box (11); the top of the treatment box (11) is communicated with a feeding pipe (16); a plurality of suction boxes (12) are installed in the middle of the treatment box (11); the top of the fixed plate (1) is fixedly connected with a water pump (13) and a distillation mechanism (14); the water pump (13) and the treatment box (11) are connected through a pipeline; the water pump (13) and the distillation mechanism (14) are connected through a pipeline; the top of the distillation mechanism (14) is communicated with an air outlet pipe (15).

2. A multi-stage membrane distillation treatment apparatus according to claim 1, wherein: The inner side wall of the suction box (12) is fixedly connected with a fixed rod (2); the middle of the fixed rod (2) is slidingly connected with a brush plate (21); the side wall of the brush plate (21) and the inner side wall of the suction box (12) are both fixedly connected with a magnet piece (22).

3. A multi-stage membrane distillation treatment apparatus according to claim 1, wherein: A plurality of spring pins (3) are installed on the side wall of the treatment box (11); the spring pins (3) are correspondingly arranged with the suction boxes (12); the side wall of the suction box (12) is fixedly connected with a fixed buckle (31).

4. A multi-stage membrane distillation treatment apparatus according to claim 1, wherein: The middle of the air outlet pipe (15) is fixedly connected with a water tank (4); the top of the water tank (4) is communicated with a water inlet pipe (41); the bottom of the water tank (4) is communicated with a water outlet pipe (42); a control valve is installed in the middle of the water outlet pipe (42); the side wall of the air outlet pipe (15) is fixedly connected with a plurality of fins (43); the fins (43) are located inside the water tank (4).

5. A multi-stage membrane distillation treatment apparatus according to claim 4, wherein: The side wall of the water tank (4) is fixedly connected with thermal insulation cotton (5); the thermal insulation cotton (5) is wrapped on the surface of the water tank (4).

6. A multi-stage membrane distillation treatment device according to claim 1, wherein: The side wall of the suction box (12) is fixedly connected with a sealing ring (6); the sealing ring (6) is made of flexible silica gel material.

7. A multi-stage membrane distillation treatment apparatus according to claim 4, wherein: The fins (43) are made of metal copper material.

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