A waste liquid treatment device for amino acid production

Abstract

The present invention relates to the technical field of sewage treatment, and specifically to a waste liquid treatment device for amino acid production, comprising a sewage tank, a condensate tank being installed at the upper end of the sewage tank, a pneumatic valve being installed between the sewage tank and the condensate tank, a discharge pump being fixedly connected to the outer side of the sewage tank, an output port of the discharge pump being fixedly connected to a first reflux pipe, a reflux pump being fixedly connected to the other end of the first reflux pipe, a second reflux pipe being fixedly connected to the output port of the reflux pump, a purification mechanism being installed at the upper output port of the second reflux pipe, the purification mechanism comprising a condensate tank, a gas distribution mechanism being installed at the upper end of the condensate tank, a second recovery pipe being fixedly connected to the output port of the other end of the second reflux pipe, a pneumatic valve being installed on the outer side of the second recovery pipe, a waste water recovery tank being fixedly connected to the other end of the second recovery pipe, and the sewage can be evaporated and condensed by the purification mechanism to extract the acid and other chemical substances inside.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to a waste liquid treatment device for amino acid production. Background Art

[0002] Amino acids are a class of amphoteric organic compounds containing alkaline amino groups and acidic carboxyl groups. They are the basic building blocks of biological functional macromolecular proteins. Amino acids can play the following roles through metabolism in the human body: synthesizing tissue proteins, participating in biological functions, and turning into acids, hormones, antibodies, creatine and other ammonia-containing substances. With the rapid development of modern industry, large-scale production also generates waste liquid and sewage.

[0003] Direct discharge of organic matter in waste liquid will pollute water bodies, cause eutrophication of water bodies, and affect the ecosystem. If the waste liquid is not handled properly, it may lead to the accumulation of heavy metals and harmful substances in the soil, affecting plant growth and soil quality. Certain chemicals in the waste liquid (such as ammonia and heavy metals) are potentially harmful to human health, and the acids and soluble salts contained in the waste liquid can be recycled and reused. For this reason, we propose a waste liquid treatment device for amino acid production. Summary of the invention

[0004] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the present invention proposes a waste liquid treatment device for amino acid production.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a waste liquid treatment device for amino acid production, comprising a sewage tank, a condensate tank is installed on the upper end of the sewage tank, a pneumatic valve is installed between the sewage tank and the condensate tank, a discharge pump is fixedly connected to the outside of the sewage tank, the output port of the discharge pump is fixedly connected to a first reflux pipe, the other end of the first reflux pipe is fixedly connected to a reflux pump, the output port of the reflux pump is fixedly connected to a second reflux pipe, a purification mechanism is installed at the upper output port of the second reflux pipe, the purification mechanism comprises a condensate tank, a gas distribution mechanism is installed on the upper end of the condensate tank, the other end of the output port of the second reflux pipe is fixedly connected to a second recovery pipe, a pneumatic valve is installed on the outside of the second recovery pipe, the other end of the second recovery pipe is fixedly connected to a wastewater recovery tank, and a pneumatic valve is installed on the outside of the discharge pipe.

[0006] Preferably, the purification mechanism includes a buffer tank fixedly connected to the second reflux pipe, a cylinder is installed on the upper end of the buffer tank, the output shaft of the cylinder is fixedly connected to a pressure plate, the upper end of the pressure plate is fixedly connected to two groups of symmetrical connecting rods, the lower ends of the two groups of connecting rods are commonly fixedly connected to a scraper, a sealing ring is slidably connected above the outer scrapers of the two groups of connecting rods, the lower end of the sealing ring is fixedly connected to a filter cartridge, the outer side of the pressure plate does not fit with the inner side of the filter cartridge, the inner side of the scraper fits with the filter cartridge, the lower end of the buffer tank is fixedly connected to a water filter plate, a discharge pipe is installed above the outer water filter plate of the buffer tank, the outer side of the second recovery pipe is fixedly connected to a discharge pipe, and a pneumatic valve is installed on the outer side of the discharge pipe.

[0007] Preferably, a solvent tank is fixedly connected to the outside of the buffer tank, a first heating pipe is fixedly connected below the solvent tank outside the buffer tank, a pneumatic valve is installed on the outside of the first heating pipe, and the lower end of the first heating pipe is fixedly connected to the first reflux pipe.

[0008] Preferably, a first feed pipe is fixedly connected to the outer side of the buffer tank, the other end of the first feed pipe is fixedly connected to an evaporation tank, the upper end of the evaporation tank is fixedly connected to a second feed pipe, the inner side of the evaporation tank is fixedly connected to a steam filter, a heating plate is installed below the steam filter inside the evaporation tank, the lower end of the evaporation tank is fixedly connected to a first recovery pipe, a pneumatic valve is installed on the outer side of the first recovery pipe, and the lower end of the first recovery pipe is fixedly connected to a concentrated waste liquid tank.

[0009] Preferably, the other end of the second feed pipe is fixedly connected to the condensation tank, a condensation plate is fixedly connected to the inner side of the condensation tank, two groups of symmetrical guide plates are fixedly connected below the inner condensation plate of the condensation tank, a third reflux pipe is fixedly connected to the outer side of the condensation tank near the lower end, and the other end of the third reflux pipe is fixedly connected to the first reflux pipe.

[0010] Preferably, the air distribution mechanism includes an exhaust fan fixedly connected to the condensation tank, the upper end of the exhaust fan is fixedly connected to an exhaust pipe, the other end of the exhaust pipe is fixedly connected to an activated carbon adsorption box, the upper end of the activated carbon adsorption box is fixedly connected to an air pump, the output port of the air pump is fixedly connected to a drain valve, the outer side of the drain valve is fixedly connected to a condensate recovery pipe, and the output port of the condensate recovery pipe is fixedly connected to the condensate tank.

[0011] Preferably, the lower end of the steam trap is fixedly connected to a second heating pipe, the lower end of the second heating pipe is commonly fixedly connected to a first gas pipe and a second gas pipe, a pneumatic valve is installed on the outer side of the first gas pipe, the lower end of the first gas pipe is fixedly connected to a hose, the hose is fixedly connected to a pressure plate, and the other end of the second gas pipe is fixedly connected to an evaporator.

[0012] Compared with the prior art, the present invention provides a waste liquid treatment device for amino acid production, which has the following beneficial effects:

[0013] 1. The sewage can be evaporated and condensed through the purification mechanism, the acid and other chemicals inside can be extracted, and the sewage can be recycled in sections, so that production resources can be saved and production costs can be reduced. The sewage can be repeatedly refluxed through the reflux pump, and the soluble salts in the sewage can be solidified and crystallized by dissolving, so that the sewage can be processed in sections and the usable chemicals can be recycled.

[0014] 2. The adsorbed sewage can be concentrated by heating the plates, turning the sewage into steam and then recovered and refluxed as condensed water, which not only separates some pollutants in the sewage, but also collects some water resources for subsequent cleaning.

[0015] 3. Part of the steam can be purified and adsorbed through the activated carbon adsorption box, so that the equipment can use the airflow to dry the inside of the device for cleaning and drying. The purified condensed water can be recovered through the steam trap and condensate recovery pipe, saving water resources, and the entire equipment can be cleaned through reflux. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a waste liquid treatment device for amino acid production proposed by the present invention;

[0017] Figure 2 This is a schematic cross-sectional view of the overall structure of a waste liquid treatment device for amino acid production proposed by the present invention;

[0018] Figure 3 This is a schematic cross-sectional view of the overall structure of a purification mechanism for a waste liquid treatment device for amino acid production proposed by the present invention;

[0019] Figure 4 This is an enlarged cross-sectional schematic diagram of a purification mechanism of a waste liquid treatment device for amino acid production proposed by the present invention;

[0020] Figure 5 The present invention provides an overall cross-sectional schematic diagram of a gas distribution mechanism for a waste liquid treatment device for amino acid production.

[0021] In the figure: 1, sewage tank; 2, condensate tank; 3, discharge pump; 4, first reflux pipe; 5, reflux pump; 6, second reflux pipe; 7, purification mechanism; 71, buffer tank; 72, filter cartridge; 73, sealing ring; 74, connecting rod; 75, scraper; 76, pressing plate; 77, cylinder; 78, solvent tank; 79, first heating pipe; 710, first feed pipe; 711, evaporation tank; 712, heating plate; 713, first recovery pipe; 714, concentrated waste liquid tank; 715, steam filter; 7 16. Second feed pipe; 717. Condensation tank; 718. Condensation plate; 719. Guide plate; 720. Third reflux pipe; 721. Water filter plate; 8. Gas distribution mechanism; 81. Exhaust fan; 82. Exhaust pipe; 83. Activated carbon adsorption box; 84. Air pump; 85. Drain valve; 86. Condensate recovery pipe; 87. Second heating pipe; 88. First gas pipeline; 89. Second gas pipeline; 810. Hose; 9. Second recovery pipe; 10. Wastewater recovery tank; 11. Discharge pipe; 12. Discharge pipe. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] See also Figure 1-Figure 5 A waste liquid treatment device for amino acid production comprises a sewage tank 1, a condensate tank 2 is installed at the upper end of the sewage tank 1, a pneumatic valve is installed between the sewage tank 1 and the condensate tank 2, a discharge pump 3 is fixedly connected to the outside of the sewage tank 1, the output port of the discharge pump 3 is fixedly connected to a first reflux pipe 4, the other end of the first reflux pipe 4 is fixedly connected to a reflux pump 5, the output port of the reflux pump 5 is fixedly connected to a second reflux pipe 6, a purification mechanism 7 is installed at the upper output port of the second reflux pipe 6, the purification mechanism 7 comprises a condensate tank 717, a gas distribution mechanism 8 is installed at the upper end of the condensate tank 717, the other end of the output port of the second reflux pipe 6 is fixedly connected to a second recovery pipe 9, a pneumatic valve is installed on the outside of the second recovery pipe 9, the other end of the second recovery pipe 9 is fixedly connected to a wastewater recovery tank 10, the outside of the second recovery pipe 9 is fixedly connected to a discharge pipe 12, and a pneumatic valve is installed on the outside of the discharge pipe 12.

[0024] In this embodiment, the purification mechanism 7 includes a buffer tank 71 fixedly connected to the second reflux pipe 6, a cylinder 77 is installed at the upper end of the buffer tank 71, and the output shaft of the cylinder 77 is fixedly connected to a pressure plate 76, the upper end of the pressure plate 76 is fixedly connected to two groups of symmetrical connecting rods 74, and the lower ends of the two groups of connecting rods 74 are commonly fixedly connected to a scraper 75, and a sealing ring 73 is slidably connected above the outer scraper 75 of the two groups of connecting rods 74, and the lower end of the sealing ring 73 is fixedly connected to a filter cartridge 72, the outer side of the pressure plate 76 does not fit with the inner side of the filter cartridge 72, and the inner side of the scraper 75 fits with the filter cartridge 72, and the lower end of the buffer tank 71 is fixedly connected to a water filter plate 721, and a discharge pipe 11 is installed above the outer water filter plate 721 of the buffer tank 71, and a pneumatic valve is installed on the outer side of the discharge pipe 11.

[0025] Specifically, the cylinder 77 is started to move the pressure plate 76 downward, and the scraper 75 is linked to the connecting rod 74 to scrape the outside of the filter cartridge 72, so that the particles formed by the sewage accumulate on the upper end of the filter plate 721. The pressure plate 76 enters the inside of the filter cartridge 72 and squeezes the sewage. The sewage is impacted outward in the filter cartridge 72 through the Bernoulli effect, so that the solid particles or impurities in the filter holes of the filter cartridge 72 are flushed out, and the pneumatic valve of the discharge pipe 11 is opened to take out the particles. The sealing ring 73 divides the buffer tank 71 into two parts and isolates the gap between the two parts.

[0026] In this embodiment, a solvent tank 78 is fixedly connected to the outside of the buffer tank 71, a first heating tube 79 is fixedly connected below the solvent tank 78 on the outside of the buffer tank 71, a pneumatic valve is installed on the outside of the first heating tube 79, and the lower end of the first heating tube 79 is fixedly connected to the first reflux pipe 4.

[0027] Specifically, the discharge of the solvent tank 78 causes the substances in the sewage to form solid particles, and the first heating pipe 79 heats the sewage to reflux, thereby accelerating the evaporation of the sewage.

[0028] In this embodiment, a first feed pipe 710 is fixedly connected to the outer side of the buffer tank 71, an evaporation tank 711 is fixedly connected to the other end of the first feed pipe 710, a second feed pipe 716 is fixedly connected to the upper end of the evaporation tank 711, a steam filter 715 is fixedly connected to the inner side of the evaporation tank 711, a heating plate 712 is installed below the steam filter 715 inside the evaporation tank 711, a first recovery pipe 713 is fixedly connected to the lower end of the evaporation tank 711, a pneumatic valve is installed on the outer side of the first recovery pipe 713, and a concentrated waste liquid tank 714 is fixedly connected to the lower end of the first recovery pipe 713.

[0029] Specifically, a portion of the sewage enters the evaporation tank 711 through the first feed pipe 710, and the heating plate 712 is started to heat and boil, so that the sewage generates steam, and impurities are filtered through the steam filter 715. The continuously heated sewage at the bottom of the evaporation tank 711 forms high-concentration sewage, which is centrally stored in the concentrated waste liquid tank 714 for treatment and utilization, and the steam passes through the second feed pipe 716 to proceed to the next stage of treatment.

[0030] In this embodiment, the other end of the second feed pipe 716 is fixedly connected to the condensation tank 717, a condensation plate 718 is fixedly connected to the inner side of the condensation tank 717, two groups of symmetrical guide plates 719 are fixedly connected below the inner condensation plate 718 of the condensation tank 717, and a third reflux pipe 720 is fixedly connected to the outer side of the condensation tank 717 near the lower end, and the other end of the third reflux pipe 720 is fixedly connected to the first reflux pipe 4.

[0031] Specifically, after being filtered by the steam filter 715, the steam enters the condensation tank 717 through the second feed pipe 716 and continues to move upward. The steam contacts the condensation plate 718 to produce condensed sewage, and then drips to both sides through the guide plate 719 and concentrates at the bottom of the condensation tank 717. Then, it flows back to the first reflux pipe 4 through the third reflux pipe 720, mixes with the main flow pipe of the first reflux pipe 4 to form a reflux, and then turns off the discharge pump 3 to circulate and concentrate the sewage in the device.

[0032] In this embodiment, the gas distribution mechanism 8 includes an exhaust fan 81 fixedly connected to the condensation tank 717, the upper end of the exhaust fan 81 is fixedly connected to an exhaust pipe 82, the other end of the exhaust pipe 82 is fixedly connected to an activated carbon adsorption box 83, the upper end of the activated carbon adsorption box 83 is fixedly connected to an air pump 84, the output port of the air pump 84 is fixedly connected to a drain valve 85, the outer side of the drain valve 85 is fixedly connected to a condensate recovery pipe 86, and the output port of the condensate recovery pipe 86 is fixedly connected to the condensate tank 2.

[0033] Specifically, the exhaust fan 81 is started, the steam at the upper end of the condensation tank 717 is extracted, and then transported to the activated carbon adsorption box 83 through the exhaust pipe 82 to filter impurities, and then the remaining steam is transported to the steam trap 85 through the air pump 84, so that the condensed water is recovered to the condensed water tank 2 through the condensed water recovery pipe 86.

[0034] In this embodiment, the lower end of the steam trap 85 is fixedly connected to the second heating pipe 87, and the lower end of the second heating pipe 87 is fixedly connected to the first gas pipe 88 and the second gas pipe 89. A pneumatic valve is installed on the outer side of the first gas pipe 88. The lower end of the first gas pipe 88 is fixedly connected to the hose 810, and the hose 810 is fixedly connected to the pressure plate 76. The other end of the second gas pipe 89 is fixedly connected to the evaporation tank 711.

[0035] Specifically, after the equipment has finished treating sewage, the second heating pipe 87 outputs a hot air flow to dry the particles on the filter net 721. After cleaning, the second air pipe 89 and the hose 810 dry the inside of the device to keep the inside of the device clean and dry.

[0036] Working principle: when in use, the sewage generated after the amino acid production passes through the sedimentation tank and is concentrated in the sewage tank 1. The pneumatic valve of the first reflux pipe 4 is opened through the operating system, and then the discharge pump 3 and the reflux pump 5 are started, so that the sewage in the sewage tank 1 is transported to the second reflux pipe 6. The sewage passes through the filter plate 721 and enters the buffer tank 71. After passing through the filter cylinder 72, a small part of the sewage enters the first heating pipe 79 for heating, and then flows back to the first reflux pipe 4, so that the subsequent sewage continues to be heated and heated, and the other part of the sewage enters the evaporation through the first feed pipe 710. In the tank 711, the heating plate 712 is started to heat and boil, and the sewage is heated to generate steam. The steam is filtered by the steam filter 715 and then enters the condensation tank 717 through the second feed pipe 716 and continues to move upward. The steam contacts the condensation plate 718 to generate condensed sewage, and then drips to both sides through the guide plate 719 and is concentrated at the bottom of the condensation tank 717. Then, it flows back to the first reflux pipe 4 through the third reflux pipe 720, mixes with the main pipe of the first reflux pipe 4 to form a reflux, and the discharge pump 3 is turned off to circulate and concentrate the sewage in the device.

[0037] Start the exhaust fan 81, the steam at the upper end of the condensation tank 717 is extracted, and then transported to the activated carbon adsorption box 83 through the exhaust pipe 82 to filter impurities, and then the remaining steam is transported to the steam trap 85 through the air pump 84, so that the condensed water is recovered to the condensed water tank 2 through the condensed water recovery pipe 86. When the sewage in the device is concentrated to a certain volume, the pneumatic valve of the solvent tank 78 is opened to allow the liquid in the solvent tank 78 to flow into the buffer tank 71 and mix with the sewage, so that the soluble salts in the sewage are solidified and continue to reflux, so that the sewage is fully mixed, and the solid particles generated by the sewage refluxed through the second reflux pipe 6 are separated by the filter cartridge 72, so that the sewage continues to pass through the filter cartridge 72 for reflux and concentration.

[0038] The cylinder 77 is started to move the pressure plate 76 downward, and the scraper 75 is linked to the connecting rod 74 to scrape the outside of the filter cartridge 72, so that the particles formed by the sewage accumulate on the upper end of the filter plate 721. The pressure plate 76 enters the inside of the filter cartridge 72 and squeezes the sewage. The sewage is impacted outward in the filter cartridge 72 through the Bernoulli effect, so that the solid particles or impurities in the filter holes of the filter cartridge 72 are flushed out. The airflow in the first air pipe 88 impacts the filter cartridge 72 through the output airflow of the hose 810 to prevent the filter cartridge 72 from being blocked. When the sewage no longer increases solid particles, the pneumatic valve of the solvent tank 78 is closed, the reflux pump 5 is turned off, and the pneumatic valve of the second recovery pipe 9 is opened to collect the concentrated sewage in the wastewater recovery tank 10. The particles in the buffer tank 71 fall into the upper end of the filter plate 721 for water control, and the particles on the outside of the filter cylinder 72 are scraped off by the scraper 75. The first recovery pipe 713 is opened to allow the highly concentrated sewage at the bottom of the evaporation tank 711 to flow into the concentrated waste liquid tank 714 for centralized treatment, and the pneumatic valve of the discharge pipe 11 is opened to take out Particles, close the pneumatic valves of the second recovery pipe 9 and the discharge pipe 11, open the pneumatic valve at the lower end of the condensate tank 2, so that the condensed water in the condensate tank 2 flows into the sewage tank 1, and then start the discharge pump 3 and the reflux pump 5 to make the buffer tank 71, the first heating pipe 79, the evaporation tank 711, and the condensation tank 717 reflux flushing, open the pneumatic valve of the discharge pipe 12 to discharge the sewage, and then start the second heating pipe 87 to use the second air pipe 89 and the hose 810 for drying to keep the inside of the device clean and dry.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste liquid treatment device for amino acid production, comprising a waste water tank (1), characterized in that: A condensate tank (2) is installed at the upper end of the sewage tank (1), a pneumatic valve is installed between the sewage tank (1) and the condensate tank (2), a discharge pump (3) is fixedly connected to the outer side of the sewage tank (1), the output port of the discharge pump (3) is fixedly connected to a first reflux pipe (4), the other end of the first reflux pipe (4) is fixedly connected to a reflux pump (5), the output port of the reflux pump (5) is fixedly connected to a second reflux pipe (6), a purification mechanism (7) is installed at the upper output port of the second reflux pipe (6), the purification mechanism (7) comprises a condensate tank (717), a gas distribution mechanism (8) is installed at the upper end of the condensate tank (717), the other end of the output port of the second reflux pipe (6) is fixedly connected to A second recovery pipe (9) is provided, a pneumatic valve is installed on the outer side of the second recovery pipe (9), the other end of the second recovery pipe (9) is fixedly connected to a wastewater recovery tank (10), the outer side of the second recovery pipe (9) is fixedly connected to a discharge pipe (12), the outer side of the discharge pipe (12) is installed with a pneumatic valve, the purification mechanism (7) comprises a buffer tank (71) fixedly connected to the second return pipe (6), a cylinder (77) is installed on the upper end of the buffer tank (71), the output shaft of the cylinder (77) is fixedly connected to a pressure plate (76), the upper end of the pressure plate (76) is fixedly connected to two groups of symmetrical connecting rods (74), the lower ends of the two groups of connecting rods (74) are commonly fixedly connected to a scraper (75), and the two groups A sealing ring (73) is slidably connected to the upper side of the outer scraper (75) of the connecting rod (74); a filter cartridge (72) is fixedly connected to the lower end of the sealing ring (73); the outer side of the pressing plate (76) does not fit into the inner side of the filter cartridge (72); the inner side of the scraper (75) fits into the filter cartridge (72); a water filter plate (721) is fixedly connected to the lower end of the buffer tank (71); a discharge pipe (11) is installed above the outer water filter plate (721) of the buffer tank (71); a pneumatic valve is installed on the outer side of the discharge pipe (11); a first feed pipe (710) is fixedly connected to the outer side of the buffer tank (71); and the other end of the first feed pipe (710) is fixedly connected to the evaporation tank (71). 11), a second feed pipe (716) is fixedly connected to the upper end of the evaporation tank (711), a steam filter (715) is fixedly connected to the inner side of the evaporation tank (711), a heating plate (712) is installed below the steam filter (715) inside the evaporation tank (711), a first recovery pipe (713) is fixedly connected to the lower end of the evaporation tank (711), a pneumatic valve is installed on the outer side of the first recovery pipe (713), a concentrated waste liquid tank (714) is fixedly connected to the lower end of the first recovery pipe (713), the other end of the second feed pipe (716) is fixedly connected to the condensation tank (717), and a condensation plate (718) is fixedly connected to the inner side of the condensation tank (717),Two groups of symmetrical guide plates (719) are fixedly connected below the inner condensation plate (718) of the condensation tank (717); a third return pipe (720) is fixedly connected to the outer side of the condensation tank (717) near the lower end; the other end of the third return pipe (720) is fixedly connected to the first return pipe (4); the gas distribution mechanism (8) comprises an exhaust fan (81) fixedly connected to the condensation tank (717); an exhaust pipe (82) is fixedly connected to the upper end of the exhaust fan (81); an activated carbon adsorption box (83) is fixedly connected to the other end of the exhaust pipe (82); an air pump (84) is fixedly connected to the upper end of the activated carbon adsorption box (83); a steam pump (84) is fixedly connected to the output port of the air pump (84); a steam trap (85) is fixedly connected to the outer side of the steam trap (85); and a condensate recovery pipe (86) is fixedly connected to the output port of the condensate recovery pipe (86) and the condensate tank (2).

2. A waste liquid treatment device for amino acid production according to claim 1, characterized in that: The outside of the buffer tank (71) is fixedly connected to a solvent tank (78), the outside of the buffer tank (71) is fixedly connected to a first heating pipe (79) below the solvent tank (78), the outside of the first heating pipe (79) is equipped with a pneumatic valve, and the lower end of the first heating pipe (79) is fixedly connected to the first reflux pipe (4).

3. The waste liquid treatment device for amino acid production according to claim 1, characterized in that: The lower end of the steam trap (85) is fixedly connected to a second heating pipe (87), the lower end of the second heating pipe (87) is commonly fixedly connected to a first gas pipe (88) and a second gas pipe (89), a pneumatic valve is installed on the outer side of the first gas pipe (88), the lower end of the first gas pipe (88) is fixedly connected to a hose (810), the hose (810) is fixedly connected to a pressing plate (76), and the other end of the second gas pipe (89) is fixedly connected to an evaporation tank (711).

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