A stripping deamination system for ammonia-nitrogen wastewater treatment

Abstract

The application discloses a stripping ammonia removal system for ammonia-nitrogen wastewater treatment, which comprises a rectifying tower, a flash tank, a fresh steam inlet pipe and a steam compressor, and further comprises a lower uniform mixing structure, a first plug-in mixing pipe, a second plug-in mixing pipe and a mixing cavity, the bottom of the mixing cavity is connected to an elastic base, and the elastic base is connected to the bottom of the interior of the rectifying tower; an upper preheating structure, a spiral pipe cavity connected to an ammonia-nitrogen gas inlet is arranged at the top of the rectifying tower, a distributor is arranged below the spiral pipe cavity, the upper preheating structure comprises an annular cover arranged outside the spiral pipe cavity, an outwardly-inclined guide plate is arranged at the lower end of the annular cover, the outwardly-inclined guide plate is arranged outside the distributor, the annular cover and the outwardly-inclined guide plate are connected to an outer guide pipe, and the tail end of the outer guide pipe extends to the bottom of the interior of the rectifying tower.

Description

TECHNICAL FIELD

[0001] The present application relates to an ammonia-nitrogen wastewater treatment equipment, in particular to a stripping ammonia removal system for ammonia-nitrogen wastewater treatment. BACKGROUND

[0002] After the disassembly of waste batteries, a large amount of ammonia-nitrogen wastewater will be generated. Discharging a large amount of ammonia-nitrogen wastewater into water bodies not only causes eutrophication of water bodies, causes black odor of water bodies, increases the difficulty and cost of water treatment, and even has toxic effects on human populations and organisms. Therefore, ammonia-nitrogen wastewater needs to be treated before discharge. The prior art often uses a stripping method to remove ammonia.

[0003] When the prior art removes ammonia by the stripping method, not only fresh steam is circulated and introduced, but also a part of the steam of the compressor is used. After the two kinds of steam are mixed, they are introduced upward and contacted with the wastewater. However, in this way, the temperature of the steam is not uniform, so that when the steam is contacted with the wastewater, the treatment of part of the ammonia is not complete due to the non-uniform temperature. In addition, the rising steam also heats the tower plate and preheats the ammonia water, so that the overall stroke is very long, and the heat consumption of the steam is very large. Either a large amount of heat needs to be input, or the heat at the end of the steam output position is weak, so that the input amount of the steam at the first end needs to be increased, resulting in large overall energy consumption.

[0004] Therefore, the present application aims to provide a stripping ammonia removal system for ammonia-nitrogen wastewater treatment, which can not only improve the mixing degree of steam at different temperatures at the front end, so that the steam can reach a suitable temperature when mixed with wastewater, but also can reduce the loss of hot steam temperature at the rear end, reduce the use of steam, and save energy consumption. SUMMARY

[0005] The present application provides a stripping ammonia removal system for ammonia-nitrogen wastewater treatment, which can effectively solve the above problems.

[0006] The present application is implemented as follows:

[0007] A stripping ammonia removal system for ammonia-nitrogen wastewater treatment, comprising a rectifying tower, a flash tank connected to the lower end of the rectifying tower, a fresh steam inlet pipe connected to the left end of the rectifying tower, a steam compressor connected to the right end of the rectifying tower, and the steam compressor connected to the flash tank.

[0008] The lower mixing structure comprises a first mixing pipe connected with the fresh steam inlet pipe, the fresh steam being introduced into the first mixing pipe, a second mixing pipe connected with the steam compressor, the recovered steam being introduced into the second mixing pipe, the first mixing pipe and the second mixing pipe being connected with a mixing cavity, the top of the mixing cavity being movably installed on the inner side wall of the rectifying tower, the bottom of the mixing cavity being connected with an elastic base, the elastic base being connected with the bottom of the rectifying tower, the flow speed of the fresh steam and the recovered steam introduced into the first mixing pipe and the second mixing pipe being increased and the fresh steam and the recovered steam flowing into the mixing cavity, the gas flowing into the mixing cavity sinking the lower half of the mixing cavity and the gas in the mixing cavity being pushed upward by the pressure of the elastic base;

[0009] The upper preheating structure comprises a spiral cavity connected with the ammonia nitrogen gas inlet at the top of the rectifying tower, a distributor being arranged below the spiral cavity, the upper preheating structure comprising a ring-shaped cover arranged outside the spiral cavity, the lower end of the ring-shaped cover being provided with an outwardly inclined guide plate, the outwardly inclined guide plate being arranged outside the distributor, the ring-shaped cover and the outwardly inclined guide plate being connected with an outer guide pipe, the end of the outer guide pipe extending to the bottom of the rectifying tower.

[0010] As a further improvement, the first mixing pipe and the second mixing pipe are of the same size, the first mixing pipe comprising a first opening connected with the fresh steam inlet pipe, the first opening being connected with a first short handle pipe, the first short handle pipe being connected with the mixing cavity, the second mixing pipe comprising a second opening connected with the steam compressor, the second opening being connected with a second short handle pipe, the second short handle pipe being connected with the mixing cavity.

[0011] As a further improvement, the first short handle pipe and the second short handle pipe are of the same size, the first short handle pipe comprising a first pipe opening connected with the first opening, the first pipe opening being of a funnel structure with a larger left side and a smaller right side, the first pipe opening being connected with a reduced diameter pipe.

[0012] As a further improvement, the mixing cavity comprises a fixed box connected with the first short handle pipe and the second short handle pipe, a sliding box being slidably installed inside the fixed box, the bottom of the sliding box being connected with the elastic base, the fresh steam and the recovered steam introduced into the fixed box pushing the sliding box downward, the sliding box being pushed upward by the potential energy of the elastic base and pumping the steam upward.

[0013] As a further improvement, the inside of the fixed box is provided with a guide rib, the outside of the sliding box is provided with a guide rail matched with the guide rib, the guide rail being longer than the guide rib, the inside of the top of the sliding box is provided with an inner arc plate, the outside of the inner arc plate being opposite to the outlets of the first short handle pipe and the second short handle pipe.

[0014] As a further improvement, the elastic base comprises a lower bottom plate connected with the bottom surface of the sliding box, and the lower end of the lower bottom plate is provided with a plurality of spring rods which are arranged obliquely and extend to the bottom of the rectifying tower.

[0015] As a further improvement, the annular cover comprises an annular belt wrapped in the cavity of the spiral pipe, and the annular belt comprises a plurality of circular ring layers which are communicated through fine holes, and one of the circular ring layers is connected with the outer guide pipe through an outer connecting pipe.

[0016] As a further improvement, the outer inclined guide plate comprises an annular seat which is arranged outside the distributor, the annular seat is communicated with the outer guide pipe, the lower end of the annular seat is connected with an inward inclined mixing ring plate, a plurality of small holes are formed in the inclined mixing ring plate, and the steam in the annular seat and the inclined mixing ring plate is extruded from the small holes.

[0017] As a further improvement, the outer side of the rectifying tower is provided with an interlayer, the outer guide pipe is arranged in the interlayer, the outer guide pipe comprises an upper guide section which is connected with the annular seat and the outer guide pipe, the upper guide section is arranged in the interlayer, the lower end of the upper guide section is connected with an extension section, the lower end of the extension section is connected with an inner through section, and the inner through section extends to the inner side of the rectifying tower.

[0018] As a further improvement, the rectifying tower is provided with a tower plate, and the upper end and the lower end of the tower plate are both provided with openings.

[0019] The present application has the following beneficial effects:

[0020] The steam used in the stripping method in the prior art is actually fresh steam plus compressed steam after flashing and entering the compressor, but the steam temperatures of the two are different, if not treated and directly discharged into the rectifying tower, the temperature of the steam is not uniform when contacting with the ammonia-nitrogen wastewater, and then part of the treatment effect is good and part of the treatment effect is poor, therefore, the lower mixing structure is arranged, the two kinds of steam with different temperatures are respectively introduced into a mixing cavity through the first and second mixing pipes, the mixing of the two kinds of steam is realized through the position change of the mixing cavity, and the mixed steam can be quickly pumped to the upper end of the rectifying tower through the elastic base, so that the steam with uniform temperature can quickly contact with the ammonia-nitrogen wastewater, and the substances in the wastewater can be recovered.

[0021] When the first mixing pipe and the second mixing pipe are ventilated, the first mixing pipe and the second mixing pipe are as short as possible, so that the whole is quickly mixed into the mixing chamber, and the energy loss is reduced, therefore, the first short handle pipe and the second short handle pipe in the first mixing pipe and the second mixing pipe are very short, so that the fresh steam and the recovered steam can enter the mixing chamber in a very short time interval, and enough pressure is generated on the mixing chamber, so that the mixing chamber can sink, thereby providing a certain feedback force, so that the steam can quickly flow upstream.

[0022] The steam passing through the first short handle pipe and the second short handle pipe needs strong flow pressure, so that the mixing chamber can quickly sink and quickly rebound, therefore, the inner diameter of the reduced diameter pipe in the first short handle pipe and the second short handle pipe is small, so that the inner diameter of the whole pipe is small, thereby realizing input uniform acceleration, so that the speed of the steam after entering the short handle pipe is faster, and the temperature mixing of the steam is more thorough.

[0023] During the sinking process of the mixing chamber, it is not sinking as a whole, but sinking partially, specifically, the mixing chamber of the application includes two parts, one part is a fixed box which is always fixed, and the other part is a sliding box which is in an active state, the sliding box will sink after being pressed, and will be rebounded by the elastic base after sinking, thereby realizing pumping of the steam in the fixed box and the sliding box, so that the whole can avoid excessive shaking, maintain the stability of the whole structure, and improve the practical effect of the application.

[0024] The elastic base is not vertically arranged, because the bottom is connected with other structures, the elastic base is arranged obliquely, the elastic base in the application is first connected through a lower plate, and then a plurality of obliquely arranged spring rods are arranged after giving way to other structures through the opening on the lower plate, and the action state of the sliding box is changed through the spring rods.

[0025] The ammonia-nitrogen wastewater entering the rectifying tower is actually at room temperature, at this time, if directly contacted with steam, the water and steam need to be heated in the initial stage of contact, and the heating time of the wastewater is long, therefore, the upper preheating structure is arranged, the steam at the bottom is guided upward through the outer guide pipe, when the wastewater enters the rectifying tower, it needs to pass through the spiral pipe cavity and the distributor first, and when passing through the spiral pipe cavity and the distributor, it will be affected by the hot steam in the annular cover and the outer inclined guide plate respectively, so that the temperature of the wastewater gradually increases, so that the wastewater after arrangement can reach the initial temperature when contacting with steam, thereby reducing the transition time of the two, so that the steam and the wastewater have more sufficient contact time, and the efficiency of material separation is higher.

[0026] The preheating stage is divided into two parts, one part of the preheating is in the spiral tube cavity, and the other part is in the distributor, when heating in the spiral tube cavity, annular heating is adopted, the spiral tube cavity is wrapped by the annular belt, so that the heat transfer is gradually received in the whole downflow process, so that the ammonia-nitrogen wastewater can be contacted with steam under the condition of having a certain temperature.

[0027] When the wastewater is about to be discharged from the distributor, if it is directly atomized, the temperature will be lost, so that the effect of the annular belt is affected, therefore, the outer inclined guide plate is arranged at the position of the distributor, the scattered points at the edge position are gathered to the middle through the inclined guiding mode of the inclined mixing ring plate, and a part of steam is extruded through the small holes in the inner side of the inclined mixing ring plate, so that the effects of local contact heat and local steam heat are realized. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows, it should be understood that the following drawings only show some embodiments of the present application, therefore should not be regarded as a limitation to the scope, for those skilled in the art, other related drawings can also be obtained without paying creative labor according to the drawings.

[0029] Figure 1 It is a structural schematic diagram of the present application.

[0030] Figure 2 It is a structural schematic diagram of the rectifying tower of the present application.

[0031] Figure 3 It is a structural schematic diagram of the internal structure of the rectifying tower of the present application.

[0032] Figure 4 It is a structural schematic diagram of the upper preheating structure of the present application.

[0033] Figure 5 It is a structural schematic diagram of the lower mixing structure of the present application.

[0034] In the drawings:

[0035] Rectifying tower 10, Spiral tube cavity 11, Distributor 12, Interlayer 13, Tray 14, Flash tank 20, Fresh steam inlet pipe 30, Steam compressor 40, Lower mixing structure 50, First mixing pipe 51, First through port 511, First short handle pipe 512, First pipe port 5121, Reduced diameter pipe 5122, Second mixing pipe 52, Second through port 521, Second short handle pipe 522, Mixing cavity 53, Fixed box 531, Sliding box 532, Guide rail 5321, Inner arc plate 5322, Elastic base 54, Lower bottom plate 541, Spring rod 542, Upper preheating structure 60, Annular cover 61, Annular belt 611, Circular ring layer 6111, Outer connecting pipe 612, Outer inclined guide plate 62, Annular seat 621, Inclined mixing ring plate 622, Outer guide pipe 63, Upper guide section 631, Extension section 632, Inner through section 633. DETAILED DESCRIPTION

[0036] For the embodiments of the present application, all fall within the scope of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0037] In the description of the present application, the terms "first", "second" are used only for the purpose of description, and cannot be understood as referring to the number of technical features. The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are 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 of ordinary skill in the art without creative labor fall within the scope of the present application.

[0038] Reference Figures 1-5As shown, a stripping ammonia removal system for ammonia-nitrogen wastewater treatment includes a rectifying tower 10, the lower end of the rectifying tower 10 is connected to a flash tank 20, the left end of the rectifying tower 10 is connected to a fresh steam inlet pipe 30, the right end of the rectifying tower 10 is connected to a steam compressor 40, the steam compressor 40 is connected to the flash tank 20, the rectifying tower 10 further includes: a lower uniform mixing structure 50, including a first plug-in mixing pipe 51 connected to the fresh steam inlet pipe 30, the first plug-in mixing pipe 51 is connected to fresh steam, a second plug-in mixing pipe 52 connected to the steam compressor 40, the second plug-in mixing pipe 52 is connected to the recovered steam recovered by the steam compressor 40, the first plug-in mixing pipe 51 and the second plug-in mixing pipe 52 are both connected to a uniform mixing cavity 53, the top of the uniform mixing cavity 53 is movably installed on the inner side wall of the rectifying tower 10, the bottom of the uniform mixing cavity 53 is connected to an elastic base 54, the elastic base 54 is connected to the bottom of the rectifying tower 10, the flow speed of the fresh steam and the recovered steam flowing into the first plug-in mixing pipe 51 and the second plug-in mixing pipe 52 is accelerated and flows to the uniform mixing cavity 53, the gas flowing into the uniform mixing cavity 53 sinks the lower half of the uniform mixing cavity 53 and the gas in the uniform mixing cavity 53 is punched upward by the pressure of the elastic base 54; an upper preheating structure 60, the top of the rectifying tower 10 is provided with a spiral pipe cavity 11 connected to an ammonia-nitrogen gas inlet, the lower part of the spiral pipe cavity 11 is provided with a distributor 12, the upper preheating structure 60 includes an annular cover 61 covering the outside of the spiral pipe cavity 11, the lower end of the annular cover 61 is provided with an outwardly inclined guide plate 62, the outwardly inclined guide plate 62 is arranged outside the distributor 12, the annular cover 61 and the outwardly inclined guide plate 62 are both connected to an outer guide pipe 63, the end of the outer guide pipe 63 extends to the bottom of the rectifying tower 10.

[0039] In the overall ammonia removal step, ammonia-nitrogen wastewater is introduced from the top of the rectifying tower 10, steam is introduced through the fresh steam inlet pipe 30 on the side of the rectifying tower 10, the introduced fresh steam contacts the wastewater, and part of the fluid with temperature enters the flash tank 20 to become steam, and then flows back to the rectifying tower 10 through the steam compressor 40.

[0040] The steam used in the prior art in the stripping method is actually fresh steam plus compressed steam after flashing and entering the compressor, but the steam temperatures of the two are different, if directly discharged into the rectifying tower 10 without treatment, the steam temperature is not uniform when contacting with ammonia-nitrogen wastewater, and then part of the treatment effect is good and part of the treatment effect is poor, therefore, the lower mixing structure 50 is arranged, two kinds of steam with different temperatures are respectively introduced into a mixing cavity 53 through the first mixing pipe 51 and the second mixing pipe 52, the mixing of the two kinds of steam is realized through the position change of the mixing cavity 53, and the mixed steam can be quickly pumped to the upper end of the rectifying tower 10 through the elastic base 54, so that the steam with uniform temperature can quickly contact with the ammonia-nitrogen wastewater, and the substances in the wastewater can be recovered.

[0041] When the first mixing pipe 51 and the second mixing pipe 52 are aerated, the first mixing pipe 51 and the second mixing pipe 52 are as short as possible, so that the steam can be quickly and neatly punched into the mixing cavity 53, and the energy consumption loss is reduced, therefore, the first mixing pipe 51 and the second mixing pipe 52 are the same in structure and size, the first mixing pipe 51 comprises a first opening 511 communicated with the fresh steam inlet pipe 30, the first opening 511 is connected to a first short handle pipe 512, the first short handle pipe 512 is connected to the mixing cavity 53, the second mixing pipe 52 comprises a second opening 521 communicated with the steam compressor 40, the second opening 521 is connected to a second short handle pipe 522, and the second short handle pipe 522 is connected to the mixing cavity 53, the first short handle pipe 512 and the second short handle pipe 522 in the first mixing pipe 51 and the second mixing pipe 52 are very short, so that the fresh steam and the recovered steam can enter the mixing cavity 53 in a very short time interval, enough pressure is generated on the mixing cavity 53, the mixing cavity 53 can sink, and a certain feedback force is provided, so that the steam can quickly flow upstream.

[0042] The steam passing through the first short handle pipe 512 and the second short handle pipe 522 needs strong flow pressure, so that the mixing cavity 53 can quickly sink and quickly rebound, therefore, the first short handle pipe 512 and the second short handle pipe 522 are the same in structure and size, the first short handle pipe 512 comprises a first pipe opening 5121 connected with the first opening 511, the first pipe opening 5121 is a funnel structure with a large left and a small right, and the first pipe opening 5121 is connected with a reduced diameter pipe 5122, the inner diameters of the reduced diameter pipes 5122 in the first short handle pipe 512 and the second short handle pipe 522 are made small, so that the inner diameters of the whole pipes are small, the input is neat and accelerated, the speed of the steam is faster after entering the short handle pipe initially, the mixing cavity 53 can be mixed, and the temperature mixing of the steam is more thorough.

[0043] In the sinking process of the mixing cavity 53, it is not sunk as a whole, but is partially sunk. Specifically, the mixing cavity 53 of the present application comprises two parts, the mixing cavity 53 comprises a fixed box 531 connected with the first short handle tube 512 and the second short handle tube 522, the inner side of the fixed box 531 is slidably connected with a sliding box 532, the bottom of the sliding box 532 is connected to the elastic base 54, the fresh steam and the recovered steam entering the fixed box 531 push the sliding box 532 downward, the sliding box 532 is bounced upward by the elastic base 54 and pumps the steam upward after moving downward, one part is the fixed box 531 which is always fixed, and the other part is the sliding box 532 which is in an active state, the sliding box 532 is pushed downward after being pressed, and is bounced by the elastic base 54 after moving downward, thereby realizing the pumping of the steam in the fixed box 531 and the sliding box 532, so that the whole does not shake too much, the stability of the whole structure is maintained, and the practical effect of the present application is improved.

[0044] In the sinking process of the whole sliding box 532, the inner side of the fixed box 531 is provided with a guide rib, the outer side of the sliding box 532 is provided with a guide rail 5321 matched with the guide rib, the guide rail 5321 is longer than the guide rib, the inner side of the top of the sliding box 532 is provided with an inner arc plate 5322, the outer side of the inner arc plate 5322 faces the outlets of the first short handle tube 512 and the second short handle tube 522, the inner arc plate 5322 is driven by the steam to sink the whole sliding box 532, and the position of the sliding box 532 is changed in the gas containing stage.

[0045] The elastic base 54 is not vertically arranged, but is arranged obliquely, because the bottom is connected with other structures. Therefore, the elastic base 54 in the embodiment comprises a lower bottom plate 541 connected with the bottom surface of the sliding box 532, the lower end of the lower bottom plate 541 is provided with a plurality of spring rods 542, the spring rods 542 are arranged obliquely and extend to the bottom of the rectifying tower 10, the elastic base 54 is connected through the lower bottom plate 541 first, the lower bottom plate 541 is opened to other structures to make room, and then a plurality of spring rods 542 are arranged obliquely, so that the action state of the sliding box 532 is changed through the spring rods 542.

[0046] The ammonia-nitrogen wastewater entering the rectifying tower 10 is actually at room temperature, and if directly contacted with steam, the water and steam still need to be warmed up in the initial stage of the contact, and the warming-up time of the wastewater is long, therefore, the present application is provided with the upper preheating structure 60, the steam at the bottom is guided upward through the outer guide pipe 63, and when the wastewater enters the rectifying tower 10, it needs to pass through the spiral pipe cavity 11 and the distributor 12, and when passing through the spiral pipe cavity 11 and the distributor 12, the wastewater is subjected to the action of the hot steam in the annular cover 61 and the outer inclined guide plate 62, so that the temperature of the wastewater is gradually increased, so that the wastewater after the arrangement can reach the initial temperature when normally contacted with steam, thereby reducing the transition time of the two, so that the steam and the wastewater have more sufficient contact time, and the efficiency of the material separation is higher.

[0047] The preheating stage is divided into two parts, one part of the preheating occurs in the spiral pipe cavity 11, and the other part occurs in the distributor 12, and when heated in the spiral pipe cavity 11, the annular cover 61 comprises an annular belt 611 wrapped in the spiral pipe cavity 11, the annular belt 611 comprises a plurality of circular ring layers 6111, the circular ring layers 6111 are communicated through the fine holes, and one of the circular ring layers 6111 is connected with the outer guide pipe 63 through an outer connecting pipe 612, which is heated in a ring shape, and the entire spiral pipe cavity 11 is wrapped by the annular belt 611, so that the ammonia-nitrogen wastewater is gradually subjected to heat transfer in the entire downward process, so that the ammonia-nitrogen wastewater can be contacted with steam under the condition of having a certain temperature.

[0048] When the wastewater is about to be discharged from the distributor 12, if it is directly atomized, the temperature will be lost, thereby affecting the effect of the annular belt 611, therefore, the outer inclined guide plate 62 of the present embodiment comprises an annular seat 621 surrounding the outside of the distributor 12, the annular seat 621 is communicated with the outer guide pipe 63, the lower end of the annular seat 621 is connected with an inward inclined mixing ring plate 622, a plurality of small holes are formed in the inclined mixing ring plate 622, the steam passing through the annular seat 621 and the inclined mixing ring plate 622 is extruded from the small holes, and the outer inclined guide plate 62 is further arranged at the position of the distributor 12, the scattered points at the edge position are gathered to the middle through the inclined guiding mode of the inclined mixing ring plate 622, and a part of the steam is extruded through the small holes in the inner side of the inclined mixing ring plate 622, thereby realizing the effect of local contact heat and local steam heat.

[0049] The heat source of the whole upper preheating structure 60 actually comes from the bottom of the rectifying tower 10. Specifically, the rectifying tower 10 is provided with an interlayer 13 on the outer side, the outer conduit 63 is arranged in the interlayer 13, the outer conduit 63 comprises an upper guide section 631 connected with the annular seat 621 and the outer conduit 63, the upper guide section 631 is arranged in the interlayer 13, the lower end of the upper guide section 631 is connected with an extension section 632, the lower end of the extension section 632 is connected with an inner through section 633, the inner through section 633 extends to the inner side of the rectifying tower 10, so that the part of the steam at the lower end can be introduced to the position at the upper end, and the power is not needed to be arranged, and the steam is introduced in a self-flowing manner.

[0050] In order to make the steam and the waste water better contact at the middle position of the rectifying tower 10, the rectifying tower 10 is provided with a tower plate 14, the upper end and the lower end of the tower plate 14 are both provided with openings, and the diameters of the openings are both greater than the diameter of the middle position.

[0051] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A stripping deamination system for treating ammonia-nitrogen wastewater, comprising a rectifying tower (10), a flash tank (20) connected to the lower end of the rectifying tower (10), a fresh steam inlet pipe (30) connected to the left end of the rectifying tower (10), a steam compressor (40) connected to the right end of the rectifying tower (10), and the steam compressor (40) connected to the flash tank (20), characterized in that, The rectifying tower (10) further comprises: The lower uniform mixing structure (50) comprises a first inserted mixing pipe (51) connected with the fresh steam inlet pipe (30), the fresh steam flows into the first inserted mixing pipe (51), a second inserted mixing pipe (52) connected with the steam compressor (40), the recovered steam flows into the second inserted mixing pipe (52), the first inserted mixing pipe (51) and the second inserted mixing pipe (52) are connected with a mixing cavity (53), the top of the mixing cavity (53) is movably installed on the inner side wall of the rectifying tower (10), the bottom of the mixing cavity (53) is connected with an elastic base (54), the elastic base (54) is connected with the bottom of the rectifying tower (10), the flow speed of the fresh steam and the recovered steam flowing into the first inserted mixing pipe (51) and the second inserted mixing pipe (52) is accelerated, and the fresh steam and the recovered steam flow into the mixing cavity (53), the gas flowing into the mixing cavity (53) sinks the lower half of the mixing cavity (53) and pushes the gas in the mixing cavity (53) upward under the pressure of the elastic base (54); The first inserted mixing pipe (51) and the second inserted mixing pipe (52) have the same structure size, the first inserted mixing pipe (51) comprises a first opening (511) connected with the fresh steam inlet pipe (30), the first opening (511) is connected with a first short handle pipe (512), the first short handle pipe (512) is connected with the mixing cavity (53), the second inserted mixing pipe (52) comprises a second opening (521) connected with the steam compressor (40), the second opening (521) is connected with a second short handle pipe (522), and the second short handle pipe (522) is connected with the mixing cavity (53); The mixing cavity (53) comprises a fixed box (531) connected with the first short handle pipe (512) and the second short handle pipe (522), the inner side of the fixed box (531) is slidably installed with a sliding box (532), the bottom of the sliding box (532) is connected with the elastic base (54), the fresh steam and the recovered steam flowing into the fixed box (531) push the sliding box (532) downward, and the sliding box (532) moves downward and rebounds upward under the potential of the elastic base (54) and pumps the steam upward; The upper preheating structure (60) comprises a ring-shaped cover (61) covering the outer side of the spiral pipe cavity (11), the lower end of the ring-shaped cover (61) is provided with an outwardly inclined guide plate (62), the outwardly inclined guide plate (62) is arranged on the outer side of the uniform distributor (12), the ring-shaped cover (61) and the outwardly inclined guide plate (62) are connected with an outer guide pipe (63), and the tail end of the outer guide pipe (63) extends to the bottom of the rectifying tower (10).

2. The stripping deamination system for ammonia nitrogen wastewater treatment according to claim 1, characterized in that, The first short handle tube (512) and the second short handle tube (522) are the same in size, the first short handle tube (512) comprises a first tube opening (5121) connected with the first opening (511), the first tube opening (5121) is a funnel structure with a larger left side and a smaller right side, and the first tube opening (5121) is connected with a reduced diameter tube (5122).

3. The stripping deamination system for ammonia nitrogen wastewater treatment according to claim 1, characterized in that, The inner side of the fixed box (531) is provided with a guide rib, the outer side of the sliding box (532) is provided with a guide rail (5321) matched with the guide rib, the guide rail (5321) is longer than the guide rib, the inner side of the top of the sliding box (532) is provided with an inner arc plate (5322), and the outer side surface of the inner arc plate (5322) is opposite to the outlets of the first short handle tube (512) and the second short handle tube (522).

4. The stripping deamination system for ammonia nitrogen wastewater treatment according to claim 3, characterized in that, The elastic base (54) comprises a lower bottom plate (541) connected with the bottom surface of the sliding box (532), and the lower end of the lower bottom plate (541) is provided with a plurality of spring rods (542), which are arranged obliquely and extend to the bottom of the rectifying tower (10).

5. The stripping deamination system for ammonia nitrogen wastewater treatment according to claim 1, characterized in that, The annular cover (61) comprises an annular belt (611) wrapped in the spiral tube cavity (11), the annular belt (611) comprises a plurality of circular ring layers (6111), the circular ring layers (6111) are communicated through fine holes, and one of the circular ring layers (6111) is connected with the outer guide pipe (63) through an outer connecting pipe (612).

6. The stripping deamination system for ammonia nitrogen wastewater treatment according to claim 5, characterized in that, The outer inclined guide plate (62) comprises an annular seat (621) arranged outside the distributor (12), the annular seat (621) is communicated with the outer guide pipe (63), the lower end of the annular seat (621) is connected with an inward inclined mixing ring plate (622), a plurality of small holes are formed in the inclined mixing ring plate (622), and steam is extruded from the small holes through the annular seat (621) and the inclined mixing ring plate (622).

7. The stripping deamination system for ammonia nitrogen wastewater treatment according to claim 6, characterized in that, The outer side of the rectifying tower (10) is provided with a interlayer (13), the outer guide pipe (63) is arranged in the interlayer (13), the outer guide pipe (63) comprises an upper guide section (631) connected with the annular seat (621) and the outer guide pipe (63), the upper guide section (631) is arranged in the interlayer (13), the lower end of the upper guide section (631) is connected with an extension section (632), the lower end of the extension section (632) is connected with an inner through section (633), and the inner through section (633) extends to the inner side of the rectifying tower (10).

8. The stripping deamination system for ammonia nitrogen wastewater treatment according to claim 1, characterized in that, The rectifying tower (10) is provided with a tower plate (14), and the upper end and the lower end of the tower plate (14) are both provided with openings.

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