Filtering and evaporating device for printing and dyeing water pollution heat treatment

Abstract

The invention relates to the technical field of new energy battery strength detection, in particular to a filtering and evaporating device for printing and dyeing water pollution heat treatment, which comprises a shell, a liquid inlet is formed in the upper side surface of the shell, an evaporating pipe is arranged in the shell, and a first connecting pipe is arranged on the outer side surface of the shell. A third connecting pipe is arranged on the outer side surface of the upper portion of the shell. According to the sewage treatment device, through the arrangement of the partition piece, the first partition layer, the second partition layer, the third partition layer, a metal frame, a liquid passing groove, a rotating roller, a liquid scraping plate, a first motor and the like, sewage can be rapidly preheated after entering the device, the sewage can be rapidly heated, and meanwhile after passing through the partition piece, the sewage can be rapidly discharged. A second separation layer and a third separation layer can scatter impurities in sewage, so that the heat exchange effect is improved, evaporation dirt on the inner side surface of an evaporation pipe is cleaned through a scraping piece, stable operation of an evaporation system is guaranteed, the heat conduction effect is improved, and the overall heat treatment effect of the device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of printing and dyeing water pollution heat treatment, and particularly relates to a filtering and evaporating device for printing and dyeing water pollution heat treatment. BACKGROUND

[0002] The filtering and evaporating device for printing and dyeing water pollution heat treatment is a core equipment for realizing "reduction, harmlessness and resource utilization" of printing and dyeing wastewater through heating and evaporation. The core principle is to heat the wastewater to the boiling point by using heat energy, so that the water is separated in the form of steam, thereby concentrating or removing the pollutants such as dyes, additives and salts in the wastewater, and recycling the condensed water or heat energy. The device is widely used in the treatment of high-concentration and difficult-to-degrade wastewater (such as dye vat cleaning water, printing wastewater and desizing wastewater) in the printing and dyeing industry, and is particularly suitable for high-salt and high-COD (chemical oxygen demand) printing and dyeing wastewater scenes. The filtering and evaporating device for printing and dyeing water pollution heat treatment is a key equipment for solving the problem of "difficult treatment of high-salt and high-COD wastewater" in the printing and dyeing industry. Among them, the MVR evaporator has become the mainstream choice in current industrial applications due to its low energy consumption and strong adaptability, and the specific device type needs to be determined comprehensively according to the wastewater volume, concentration, composition and enterprise energy consumption budget.

[0003] In the prior art, printing and dyeing wastewater often contains a large amount of organic matter and salt. The organic matter is easy to coke at high temperature, which can accelerate the scaling rate of the heat exchange tube. Scaling can reduce the heat transfer efficiency and the evaporation capacity, and even the evaporator may be forced to stop and clean due to pipe wall fouling after a short period of operation, affecting normal production. In addition, in the existing technology, printing and dyeing wastewater has complex composition and may contain various acid-base substances and corrosive ions. The equipment and pipelines of the MVR evaporator are easily corroded during long-term contact with wastewater and high-temperature steam, which can cause equipment leakage and affect the heat exchange efficiency of the device, thereby affecting the evaporation effect and causing safety hazards. SUMMARY

[0004] The purpose of the present application is to provide a filtering and evaporating device for printing and dyeing water pollution heat treatment to solve the above problems in the prior art. The filtering and evaporating device for printing and dyeing water pollution heat treatment is a core equipment for realizing "reduction, harmlessness and resource utilization" of printing and dyeing wastewater through heating and evaporation. The core principle is to heat the wastewater to the boiling point by using heat energy, so that the water is separated in the form of steam, thereby concentrating or removing the pollutants such as dyes, additives and salts in the wastewater, and recycling the condensed water or heat energy. The device is widely used in the treatment of high-concentration and difficult-to-degrade wastewater (such as dye vat cleaning water, printing wastewater and desizing wastewater) in the printing and dyeing industry, and is particularly suitable for high-salt and high-COD (chemical oxygen demand) printing and dyeing wastewater scenes. The filtering and evaporating device for printing and dyeing water pollution heat treatment is a key equipment for solving the problem of "difficult treatment of high-salt and high-COD wastewater" in the printing and dyeing industry. Among them, the MVR evaporator has become the mainstream choice in current industrial applications due to its low energy consumption and strong adaptability, and the specific device type needs to be determined comprehensively according to the wastewater volume, concentration, composition and enterprise energy consumption budget.

[0005] In order to achieve the above object, the present application provides the following technical scheme: printing and dyeing water pollution heat treatment filter evaporation device, including the shell, the upper surface of the shell is provided with liquid inlet, the inside of the shell is provided with evaporation pipe, the outside surface of the shell is provided with first connecting pipe, the upper outside surface of the shell is provided with third connecting pipe, also including: The inside of the shell is provided with a partition, and the upper end surface of the partition is provided with a flow divider. The inside of the partition is provided with a first separation layer, the lower surface of the first separation layer is provided with a second separation layer, and the lower surface of the second separation layer is provided with a third separation layer.

[0006] Preferably, the outside surface of the first connecting pipe is provided with a separator, and the upper surface of the separator is provided with a second connecting pipe.

[0007] Preferably, the inside of the first separation layer is provided with a plurality of metal racks, and the inside of the second separation layer is provided with a liquid passing groove.

[0008] Preferably, the inside of the third separation layer is provided with a first motor, the outside output end of the first motor is fixedly connected with the outside surface of a rotating roller, and the outside surface of the rotating roller is provided with a liquid scraping plate.

[0009] Preferably, the lower surface of the evaporation pipe is provided with a lower base, the inside of the lower base is provided with a rotating groove, the inside of the rotating groove is provided with a rotating piece, and the outside surface of the rotating piece is provided with a first electric rotating shaft.

[0010] Preferably, the inside of the rotating piece is provided with a second motor, and the output end of the second motor is fixedly connected with a connecting rod.

[0011] Preferably, the outside surface of the connecting rod is fixedly connected with a scraping piece, and the two sides of the scraping piece are provided with scraping plates.

[0012] Preferably, the inside of the separator is provided with a gauze disc, and the outside surface of the gauze disc is provided with a filter gauze.

[0013] Preferably, the outside surface of the gauze disc is provided with a second electric rotating shaft, and the second electric rotating shaft is provided with six groups on the gauze disc, and the gauze disc and the separator are rotationally connected.

[0014] Preferably, the outside surface of the second connecting pipe is fixedly connected with a compression fan, and the upper end of the compression fan is provided with a third connecting pipe.

[0015] Compared with the prior art, the present application has the following advantages: The application can make the sewage enter the device and be quickly preheated, can quickly heat the sewage, and can improve the heat exchange effect by dispersing the impurities in the sewage after the sewage passes through the partition piece, the second partition layer and the third partition layer.

[0016] The application is provided with a lower base, a rotating groove, a rotating piece, a first electric rotating shaft, a second motor, a connecting rod and a scraping piece, which can clean the evaporation dirt (such as salt dirt, organic coking and dye residue in printing and dyeing wastewater) on the inner surface of the evaporation pipe, is the core link to ensure the stable operation and high efficiency and energy saving of the evaporation system (especially the MVR evaporator), improve the heat conduction effect, and increase the overall heat treatment effect of the device. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A side view structural schematic diagram of the filtering evaporation device for heat treatment of printing and dyeing water pollution is provided. Figure 2 A shunt and evaporation pipe mutual cooperation structure schematic diagram of the filtering evaporation device for heat treatment of printing and dyeing water pollution is provided. Figure 3 An evaporation pipe and lower base mutual cooperation structure schematic diagram of the filtering evaporation device for heat treatment of printing and dyeing water pollution is provided. Figure 4 A Figure 3 An enlarged structure schematic diagram of position A in the filtering evaporation device for heat treatment of printing and dyeing water pollution is provided. Figure 5 A Figure 3 An enlarged structure schematic diagram of position B in the filtering evaporation device for heat treatment of printing and dyeing water pollution is provided. Figure 6 A gauze disc and second electric rotating shaft mutual cooperation structure schematic diagram of the filtering evaporation device for heat treatment of printing and dyeing water pollution is provided. Figure 7 A rotating piece and first electric rotating shaft mutual cooperation structure schematic diagram of the filtering evaporation device for heat treatment of printing and dyeing water pollution is provided. Figure 8 A partition piece and first partition layer mutual cooperation structure schematic diagram of the filtering evaporation device for heat treatment of printing and dyeing water pollution is provided. Figure 9 A Figure 8 An enlarged structure schematic diagram of position C in the filtering evaporation device for heat treatment of printing and dyeing water pollution is provided. Figure 10 A rotating roller and liquid scraping plate mutual cooperation structure schematic diagram of the filtering evaporation device for heat treatment of printing and dyeing water pollution is provided.

[0018] In the figure: 1, the shell; 2, the liquid inlet; 3, the flow divider; 4, the evaporation pipe; 5, the partition; 6, the first partition layer; 7, the second partition layer; 8, the third partition layer; 9, the metal frame; 10, the liquid passing groove; 11, the rotating roller; 12, the liquid scraping plate; 13, the first motor; 14, the lower base; 15, the rotating groove; 16, the rotating piece; 17, the first electric rotating shaft; 18, the second motor; 19, the connecting rod; 20, the scraping piece; 21, the first connecting pipe; 22, the separator; 23, the gauze disc; 24, the second electric rotating shaft; 25, the second connecting pipe; 26, the compression fan; 27, the third connecting pipe. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0020] Please refer to Figures 1 to 10 The present application provides a technical solution: a filter evaporation device for printing and dyeing water pollution heat treatment, comprising a shell 1, the upper surface of the shell 1 is provided with a liquid inlet 2, the inside of the shell 1 is provided with an evaporation pipe 4, the outer surface of the shell 1 is provided with a first connecting pipe 21, the upper outer surface of the shell 1 is provided with a third connecting pipe 27, the inside of the shell 1 is provided with a partition 5, the upper end surface of the partition 5 is provided with a flow divider 3, sewage enters the shell 1 through the liquid inlet 2, the evaporation pipe 4 in the inside of the shell 1 is used for heating the internal sewage, the first connecting pipe 21 is used for conveying water vapor and other flowing objects, the inside of the partition 5 is provided with a first partition layer 6, the lower surface of the first partition layer 6 is provided with a second partition layer 7, and the lower surface of the second partition layer 7 is provided with a third partition layer 8.

[0021] The outer surface of the first connecting pipe 21 is provided with a separator 22, the upper surface of the separator 22 is provided with a second connecting pipe 25, steam enters the separator 22 through the first connecting pipe 21, and then enters the second connecting pipe 25 through the separator 22.

[0022] The inside of the first partition layer 6 is provided with a plurality of metal frames 9, and the inside of the second partition layer 7 is provided with a liquid passing groove 10. Through the arrangement of the metal frame 9, the liquid passing through the first partition layer 6 can be quickly heated. Through the arrangement of the liquid passing groove 10, when the liquid passes through the second partition layer 7, the centrifugal efficiency of the flow is increased, and the impurity separation effect is increased.

[0023] The inside of the third partition layer 8 is provided with a first motor 13, the outside output end of the first motor 13 is fixedly connected with the outside surface of the rotating roller 11, the outside surface of the rotating roller 11 is provided with a liquid scraping plate 12, the first motor 13 drives the rotating roller 11 to rotate, and the liquid scraping plate 12 also rotates to hinder the flowing liquid when the rotating roller 11 rotates.

[0024] The lower surface of the evaporation pipe 4 is provided with a lower base 14, the inside of the lower base 14 is provided with a rotating groove 15, the inside of the rotating groove 15 is provided with a rotating piece 16, the outside surface of the rotating piece 16 is provided with a first electric rotating shaft 17, the inside of the rotating piece 16 is provided with a second motor 18, the output end of the second motor 18 is fixedly connected with a connecting rod 19, the outside surface of the connecting rod 19 is fixedly connected with a scraping piece 20, both sides of the scraping piece 20 are provided with scraping plates, the first electric rotating shaft 17 drives the rotating piece 16 to rotate in the rotating groove 15, when the rotating piece 16 rotates, the second motor 18 is started to drive the connecting rod 19 to rotate, the connecting rod 19 drives the scraping piece 20 to rotate, and the scraping piece 20 scrapes the impurities on the inner wall of the evaporation pipe 4.

[0025] The inside of the separator 22 is provided with a gauze disc 23, the outside surface of the gauze disc 23 is provided with a filter gauze, the gauze disc 23 inside the separator 22 can perform secondary filtration on the steam.

[0026] The outside surface of the gauze disc 23 is provided with a second electric rotating shaft 24, the second electric rotating shaft 24 is provided with six groups on the gauze disc 23, the gauze disc 23 and the separator 22 are rotationally connected, the second electric rotating shaft 24 drives the gauze disc 23 to rotate, and the six groups of the second electric rotating shaft 24 can make the rotation of the gauze disc 23 more stable.

[0027] The outside surface of the second connecting pipe 25 is fixedly connected with a compression fan 26, the upper end of the compression fan 26 is provided with a third connecting pipe 27, the compression fan 26 performs air conveying to extract the steam in the second connecting pipe 25, and then the steam is conveyed to the third connecting pipe 27 by the compression fan 26.

[0028] Working principle: first, the sewage enters the inside of the device through the liquid inlet 2 on the shell 1, after the sewage passes through the liquid inlet 2, the sewage is contacted with the flow divider 3, the flow divider 3 divides the sewage to the periphery, so that the sewage enters the partition piece 5, the partition piece 5 is provided with two groups of upper and lower groups, and the two groups of partition pieces are connected through the evaporation pipe 4.

[0029] In the prior art, printing and dyeing wastewater often contains a large amount of organic matter and salt. Organic matter is easy to coke at high temperature, which can accelerate the fouling rate of heat exchange tube. Fouling can lead to reduced heat transfer efficiency and reduced evaporation capacity. Even the evaporator may be forced to stop and clean after a short period of operation due to fouling on the tube wall, affecting normal production. In addition, in the existing technology, the composition of printing and dyeing wastewater is complex, which may contain various acid-base substances and corrosive ions. The equipment and pipelines of MVR evaporator are easily corroded during long-term contact with wastewater and high-temperature steam, which can cause equipment leakage and affect the heat exchange efficiency of the device. This not only affects the evaporation effect, but also has safety hazards. The device is designed to solve the above problems.

[0030] When the sewage enters the partition 5, the first partition layer 6, the second partition layer 7 and the third partition layer 8 are arranged in the partition 5. The inside of the first partition layer 6 is provided with a metal frame 9, which can increase the heating area when the sewage flows through, so that the sewage can be quickly heated. Then the sewage will contact the second partition layer 7. The inner surface of the second partition layer 7 is provided with a liquid passing groove 10. The function of the liquid passing groove 10 is that when the sewage flows through the liquid passing groove 10, it will be forced to rotate and tumble along the groove, forming strong turbulence (or secondary flow), directly tearing the laminar boundary layer, so that the heat exchange between the fluid in the pipe and the pipe wall is more sufficient. Then the sewage will contact the third partition layer 8. At this time, the first motor 13 starts to drive the rotating roller 11 to rotate. When the rotating roller 11 rotates, it will drive the liquid scraping plate 12 to rotate. When the liquid scraping plate 12 rotates, it will strike the sewage flowing through, so that the large impurities in the sewage are dispersed and treated, and the whole sewage liquid is evaporated more thoroughly.

[0031] When the sewage has passed through the two sets of separators 5, the sewage has been heated and the internal impurities have been refined, at this time it will flow through the evaporation pipe 4 below the separator 5, the lower base 14 is arranged below the evaporation pipe 4, the rotating groove 15 is arranged on the inner side of the lower base 14, the rotating part 16 is arranged in the rotating groove 15, the first electric rotating shaft 17 is arranged in the rotating part 16, the first electric rotating shaft 17 drives the rotating part 16 to rotate in the rotating groove 15, at this time when the rotating part 16 rotates, the second motor 18 installed in the rotating part 16 starts to drive the connecting rod 19 to rotate, the connecting rod 19 drives the scraper 20 to rotate, the scraper 20 is provided with double heads, so that both sides can be scraped, under the drive of the rotating part 16, the scraper 20 rotates around the sun, so as to clean the evaporation dirt on the inner side surface of the evaporation pipe 4, the evaporation dirt (such as salt dirt, organic matter coking, dye residue, etc. in the printing and dyeing wastewater) on the inner side surface of the evaporation pipe 4 is cleaned, which is the core link to ensure the stable operation and high efficiency and energy saving of the evaporation system (especially the MVR evaporator), improve the heat conduction effect, and increase the overall heat treatment effect of the device, after the sewage is heat treated, it enters the separator 22 from the first connecting pipe 21 in the shell 1, after entering the separator 22, the compression fan 26 starts to drive hot gas flow into the second connecting pipe 25.

[0032] When entering the second connecting pipe 25, the hot steam passes through the gauze disc 23, at this time the gauze disc 23 is driven to rotate by the second electric rotating shaft 24, the upper and lower two layers of gauze discs 23 rotate in opposite directions in the separator 22 (such as the gas-liquid separator 22, steam-concentrated liquid separator 22, etc. matched with the MVR printing and dyeing wastewater evaporator), the gauze disc 23 (usually a mesh structure composed of multiple layers of metal gauze, also called "foam catcher" or "mist eliminator") is arranged in the separator 22, the core function is to strengthen the gas-liquid separation efficiency and intercept the liquid droplets / mist in the gas flow, and the opposite rotation and multi-layer design can increase the overall interception effect and improve the evaporation efficiency, then the steam is delivered to the third connecting pipe 27 by the compression fan 26, and the hot steam in the third connecting pipe 27 is heated again to enter the shell 1 to heat the evaporation pipe 4, so as to circulate.

[0033] Although embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A filtration and evaporation device for heat treatment of dyeing and printing water pollution, comprising a shell (1), characterized in that: The upper surface of the outer shell (1) is provided with a liquid inlet (2), the interior of the outer shell (1) is provided with an evaporation tube (4), the outer surface of the outer shell (1) is provided with a first connecting pipe (21), the upper outer surface of the outer shell (1) is provided with a third connecting pipe (27), and it also includes: Diverter (3), the interior of the outer shell (1) is provided with a partition (5), and the upper surface of the partition (5) is provided with a diverter (3). The third partition layer (8) is provided inside the partition member (5), the first partition layer (6) is provided on the lower surface of the first partition layer (6), and the third partition layer (8) is provided on the lower surface of the second partition layer (7).

2. The filtration and evaporation apparatus for heat treatment of dyeing and printing water pollution according to claim 1, characterized in that: A separator (22) is provided on the outer surface of the first connecting pipe (21), and a second connecting pipe (25) is provided on the upper surface of the separator (22).

3. The filtration and evaporation apparatus for heat treatment of dyeing and printing water pollution according to claim 1, characterized in that: The first partition layer (6) has multiple sets of metal frames (9) inside, and the second partition layer (7) has a liquid tank (10) inside.

4. The filtration and evaporation apparatus for heat treatment of dyeing and printing water pollution according to claim 3, characterized in that: The third partition layer (8) is provided with a first motor (13), the outer output end of the first motor (13) is fixedly connected to the outer surface of the rotating roller (11), and the outer surface of the rotating roller (11) is provided with a scraper (12).

5. The filtration and evaporation apparatus for heat treatment of dyeing and printing water pollution according to claim 1, characterized in that: The lower surface of the evaporator tube (4) is provided with a lower base (14), the lower base (14) is provided with a rotating groove (15), the rotating groove (15) is provided with a rotating component (16), and the outer surface of the rotating component (16) is provided with a first electric rotating shaft (17).

6. The filtration and evaporation apparatus for heat treatment of dyeing and printing water pollution according to claim 1, characterized in that: The rotating component (16) is equipped with a second motor (18), and the output end of the second motor (18) is fixedly connected to a connecting rod (19).

7. The filtration and evaporation apparatus for heat treatment of dyeing and printing water pollution according to claim 6, characterized in that: A scraper (20) is fixedly connected to the outer surface of the connecting rod (19), and scraper blades are provided on both sides of the scraper (20).

8. The filtration and evaporation apparatus for heat treatment of dyeing and printing water pollution according to claim 7, characterized in that: The separator (22) is provided with a mesh disc (23) inside, and a filter mesh is provided on the outer surface of the mesh disc (23).

9. The filtration and evaporation apparatus for heat treatment of dyeing and printing water pollution according to claim 8, characterized in that: The outer surface of the yarn mesh disc (23) is provided with a second electric rotating shaft (24), and six sets of the second electric rotating shaft (24) are provided on the yarn mesh disc (23). The yarn mesh disc (23) and the separator (22) are rotatably connected.

10. The filtration and evaporation apparatus for heat treatment of dyeing and printing water pollution according to claim 1, characterized in that: A compressor (26) is fixedly connected to the outer surface of the second connecting pipe (25), and a third connecting pipe (27) is provided at the upper end of the compressor (26).

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