Double-effect deamination system for arginine
By designing a dual-effect deammoniation system for arginine, which utilizes high-temperature steam and vacuum pumping technology for continuous deammoniation and recovers ammonia water through multi-stage condensation, the problem of high ammonia content in arginine mash has been solved, improving product quality and resource utilization while reducing production costs.
Patent Information
- Application Number
- CN202422990622.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-04
AI Technical Summary
In the arginine fermentation production process, the high ammonia content in the arginine mash affects product quality and purity. Furthermore, ammonia entering the wastewater causes material waste and environmental pollution, and existing technologies are unable to effectively remove or recover ammonia.
A dual-effect ammonia removal system for arginine is designed, comprising a first-effect and a second-effect ammonia removal tower, an evaporator, and a condenser. The system continuously removes ammonia using high-temperature steam and vacuum pumping technology, and condenses the ammonia gas into ammonia water for recovery. Multi-stage condensation is used to improve the ammonia water concentration and the utilization rate of condensate.
This method effectively removes ammonia from arginine mash, improves product recovery rate and quality, reduces environmental pollution, saves resources, and lowers production costs.
Smart Images
Figure CN223586580U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to biochemical equipment manufacturing technical field, especially a kind of arginine double-effect deamination system. BACKGROUND
[0002] In arginine fermentation production process, a large amount of ammonium sulfate is needed to supply nitrogen source, and liquid ammonia is needed to be imported for pH adjustment and nitrogen supply, and ion exchange process is usually used for arginine extraction after fermentation culture ends, and ammonia is used to elute arginine, but this will make arginine broth contain a large amount of ammonia, affect arginine crystallization process, and further affect product quality and purity, and a large amount of ammonia into sewage will cause material waste and environmental pollution, how to effectively remove ammonia in arginine broth and collect for reuse has been a key technical problem to be solved in arginine extraction and purification process, and there is no good solution for the treatment of a large amount of ammonia in arginine broth.
[0003] Many experts and scholars try to remove or recover excess ammonia in arginine broth, but due to the reasons such as too low recovery concentration of a large amount of condensate mixed with ammonia and cannot be reused, the removal efficiency of ammonia cannot meet the demand.
[0004] Therefore, in view of the deficiencies in the prior art, it is necessary to design an arginine double-effect deamination system to solve the above problems.
[0005] It should be noted that the above introduction to the technical background is only for the convenience of clearly and completely describing the technical scheme of the utility model, and for the convenience of understanding by those skilled in the art, and the above content cannot be considered as known by those skilled in the art only because these contents are described in the background of the utility model. UTILITY MODEL CONTENTS
[0006] In order to overcome the deficiencies in the prior art, the utility model aims at disclosing an arginine double-effect deamination system, which can be applied to the production process of arginine extraction and purification, realizes continuous deamination of arginine broth, recovers ammonia for reuse, solves the problem of high ammonia content in arginine broth, improves the extraction recovery rate of arginine and product quality, and reduces the pollution of ammonia to the environment.
[0007] The utility model discloses an arginine double-effect deamination system, which comprises:
[0008] The raw material tank is connected with the first discharge pipe at the lower end of the discharge port, and the first discharge pipe is provided with the first discharge pump, and the arginine broth is conveyed to the feed tank through the first discharge pipe;
[0009] The lower end discharge port of the feed tank is connected with a second discharge pipe, and a second discharge pump is arranged on the second discharge pipe; the upper end feed inlet of the feed tank is communicated with the first discharge pipe, the arginine broth is pretreated through the feed tank, and then the treated arginine broth is delivered to the two-effect ammonia removal tower through the second discharge pipe;
[0010] The lower end discharge port of the two-effect ammonia removal tower is connected with a third discharge pipe, the third discharge pipe is connected with the feed inlet of a third discharge pump, and the arginine broth is delivered to the third discharge pump through the third discharge pipe; the upper end feed inlet of the two-effect ammonia removal tower is communicated with the second discharge pipe, and is used for receiving the arginine broth from the feed tank; a first vacuum extraction pipeline is connected with the top gas extraction port of the two-effect ammonia removal tower, and is used for extracting the ammonia gas in the container; a steam inlet pipeline is communicated with the steam inlet of the two-effect ammonia removal tower, and is used for providing high-temperature steam for the two-effect ammonia removal tower;
[0011] The lower end discharge port of the two-effect evaporator is connected with a fourth discharge pipe, the fourth discharge pipe is connected with the feed inlet of the third discharge pump, and the arginine broth treated through the two-effect evaporator is delivered to the third discharge pump; the upper end feed inlet of the two-effect evaporator is connected with a second return pipeline, the second return pipeline is connected with the discharge port of the third discharge pump, and is used for circulating the arginine broth to the two-effect evaporator; the two-effect evaporator is communicated with the lower end of the two-effect ammonia removal tower through a first pipeline; the upper part and the lower part of the two-effect evaporator are respectively provided with gas extraction ports and are connected with a second vacuum extraction pipeline, and are used for extracting the ammonia gas in the container; a secondary condensate water pipeline is connected with the condensate water outlet of the two-effect evaporator, the secondary condensate water pipeline is connected with the top water inlet of a secondary condensate water tank, the bottom water outlet of the secondary condensate water tank is communicated with a secondary condensate water main pipeline, and a secondary condensate water pump is arranged on the secondary condensate water main pipeline, and is used for recycling the steam secondary condensate water;
[0012] The lower end discharge port of the one-effect ammonia removal tower is connected with a fifth discharge pipe, the upper end feed inlet of the one-effect ammonia removal tower is connected with a sixth discharge pipe, the sixth discharge pipe is connected with the discharge port of the third discharge pump, and is used for delivering the arginine broth treated through the one-effect ammonia removal tower to the third discharge pump; the top gas extraction port of the one-effect ammonia removal tower is connected with a second gas extraction pipeline, the second gas extraction pipeline is connected with the gas inlet of the two-effect evaporator, and is used for delivering the high-temperature gas in the one-effect ammonia removal tower to the two-effect evaporator to be used again, so that continuous ammonia removal is realized;
[0013] The lower end discharge port of the first-effect evaporator is connected with a seventh discharge pipe, and the seventh discharge pipe is connected with the feed inlet of the first-effect circulating pump and the fourth discharge pump respectively; the discharge port of the first-effect circulating pump is connected with the upper end feed inlet of the first-effect evaporator through a third return pipe, which is used for circulating the refined arginine mash treated by the first-effect evaporator back into the first-effect evaporator for treatment; the feed inlet of the fourth discharge pump is also connected with a fifth discharge pipe, the discharge port of the fourth discharge pump is connected with a discharge pipeline, and a discharge cooler is arranged on the discharge pipeline, the discharge pipeline passes through the hot material passage of the discharge cooler, and is used for cooling and discharging the treated refined arginine mash; the first-effect evaporator is communicated with the lower end of the first-effect deamination tower through a second pipeline; the upper part and the lower part of the first-effect evaporator are respectively provided with gas extraction ports and are connected on a third vacuum extraction pipeline, which is used for extracting ammonia gas in the container; the steam inlet of the first-effect evaporator is communicated with a steam inlet pipeline, which is used for providing high-temperature steam for the first-effect evaporator; the condensate water outlet of the first-effect evaporator is connected with a primary condensate water pipe, the primary condensate water pipe is connected with the top water inlet of a primary condensate water tank, the bottom water outlet of the primary condensate water tank is communicated with a primary condensate water main pipeline, and a primary condensate water pump is arranged on the primary condensate water main pipeline, which is used for recycling the steam primary condensate water;
[0014] The upper part and the lower part of the first-stage condenser are respectively provided with gas extraction ports and are connected on a fourth vacuum extraction pipeline, the fourth vacuum extraction pipeline is connected with a dilute ammonia water tank, the ammonia-containing steam is cooled and condensed into ammonia water through the first-stage condenser; the lower end discharge port of the dilute ammonia water tank is connected with an eighth discharge pipe, the eighth discharge pipe is provided with a dilute ammonia water pump, the lower end circulating water inlet of the first-stage condenser is connected with a circulating water inlet pipe, and the lower end circulating water return port of the first-stage condenser is connected with a circulating water return pipe; the circulating water inlet pipe is also connected with the cold material inlet of the discharge cooler, and the circulating water return pipe is also connected with the cold material outlet of the discharge cooler;
[0015] The upper part and the lower part of the first-stage condenser are respectively provided with gas extraction ports and are connected on a fourth vacuum extraction pipeline, the fourth vacuum extraction pipeline is connected with a dilute ammonia water tank, the ammonia-containing steam is cooled and condensed into ammonia water through the first-stage condenser; the lower end discharge port of the dilute ammonia water tank is connected with an eighth discharge pipe, the eighth discharge pipe is provided with a dilute ammonia water pump, the lower end circulating water inlet of the first-stage condenser is connected with a circulating water inlet pipe, and the lower end circulating water return port of the first-stage condenser is connected with a circulating water return pipe; the circulating water inlet pipe is also connected with the cold material inlet of the discharge cooler, and the circulating water return pipe is also connected with the cold material outlet of the discharge cooler;
[0016] The absorption tower is provided with a fifth vacuumizing pipeline at the top, the fifth vacuumizing pipeline is connected with the air outlet of the vacuum pump, the lower inlet of the absorption tower is communicated with the ninth discharge pipeline, the bottom of the absorption tower is provided with a tenth discharge pipeline, the tenth discharge pipeline is connected with the feed inlet of the fifth discharge pump, the lower discharge outlet of the fifth discharge pump is respectively connected with the concentrated ammonia water discharge pipeline and the fourth return pipeline, the fourth return pipeline is connected with the upper feed inlet of the absorption tower through the ammonia water cooler, the cold water outlet of the ammonia water cooler is communicated with the cold water inlet pipeline, the cold water inlet of the ammonia water cooler is communicated with the low-temperature water inlet pipe, the low-temperature water inlet pipe transports low-temperature water to the ammonia water cooler, and the lower part of the absorption tower is also provided with a water supplement interface connected with a water supplement pipeline.
[0017] Preferably, the upper end return port of the raw material tank is connected with a first return pipeline, and the first return pipeline is connected with the discharge port of the fourth discharge pump.
[0018] Preferably, the upper end exhaust port of the feed tank is connected with a first exhaust pipeline, and the first exhaust pipeline is provided with a gas-liquid separator; the liquid outlet of the gas-liquid separator is connected with the return port of the feed tank through a first return pipeline, and the gas inlet of the two-effect ammonia removal tower is communicated with the first exhaust pipeline.
[0019] Preferably, the steam inlet pipeline, the discharge pipeline, the circulating water inlet pipe, the circulating water return pipe, the first discharge pipeline, the first return pipeline, the second discharge pipeline, the first exhaust pipeline, the first return pipeline, the third discharge pipeline, the first vacuumizing pipeline, the first pipeline, the fourth discharge pipeline, the second return pipeline, the second vacuumizing pipeline, the secondary condensate water pipe, the secondary condensate water main pipe, the fifth discharge pipeline, the sixth discharge pipeline, the second exhaust pipeline, the second pipeline, the seventh discharge pipeline, the third return pipeline, the third vacuumizing pipeline, the primary condensate water pipe, the primary condensate water main pipe, the fourth vacuumizing pipeline, the eighth discharge pipeline, the cold water inlet pipeline, the cold water return pipe, the ninth discharge pipeline, the fifth vacuumizing pipeline, the tenth discharge pipeline, the concentrated ammonia water discharge pipeline, the fourth return pipeline, the low-temperature water inlet pipe and the water supplement pipeline are all provided with control valves.
[0020] Preferably, the top of the tank in the feed tank is provided with a first spraying device, and the first spraying device is communicated with the first discharge pipeline.
[0021] Preferably, the top of the tank in the feed tank is provided with a first spraying device, and the first spraying device is communicated with the first discharge pipeline.
[0022] Due to the use of the above technical scheme, the utility model has the beneficial effects compared with the prior art:
[0023] The utility model discloses a kind of arginine double-effect deamination systems, using the system to carry out the continuous deamination of arginine wort, not only ammonia content in arginine wort can be greatly reduced, and steam primary condensate, steam secondary condensate, dilute ammonia water are all classified recycling, not only energy saving and environmental protection, and improve the comprehensive utilization value of ammonia water and steam condensate, simultaneously make arginine wort crystallization procedure more easily to implement, improve product yield and product quality, reduce production cost.The system is simple in operation, process is stable, and it has incomparable advantage with small floor area. BRIEF DESCRIPTION OF DRAWINGS
[0024] To more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the drawings needed to be used in the specific embodiments or prior art description will be briefly introduced as follows, obviously, the drawings in the following description are some embodiments of the present utility model, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0025] Figure 1 It is a structural schematic diagram of the present utility model arginine double-effect deamination system.
[0026] In the above drawing, 100, steam inlet pipe; 101, discharge pipe; 101a, discharge cooler; 1, raw material tank; 102, circulating water inlet pipe; 103, circulating water return pipe; 11, first discharge pipe; 12, first discharge pump; 13, first return pipe; 14, second spraying device; 2, feed tank; 21, second discharge pipe; 22, second discharge pump; 23, first exhaust pipe; 24, gas-liquid separator; 25, first return pipe; 26, first spraying device; 3, two-effect ammonia removal tower; 31, third discharge pipe; 32, third discharge pump; 33, first vacuum pipe; 4, two-effect evaporator; 4a, first pipe; 41, fourth discharge pipe; 42, second return pipe; 43, second vacuum pipe; 44, secondary condensate pipe; 45, secondary condensate tank; 46, secondary condensate main pipe; 47, secondary condensate pump; 5, one-effect ammonia removal tower; 51, fifth discharge pipe; 52, sixth discharge pipe; 53, second exhaust pipe; 6, one-effect evaporator; 6a, second pipe; 61, seventh discharge pipe; 62, one-effect circulating pump; 63, fourth discharge pump; 64, third return pipe; 65, third vacuum pipe; 66, primary condensate pipe; 67, primary condensate tank; 68, primary condensate main pipe; 69, primary condensate pump; 7, primary condenser; 71, fourth vacuum pipe; 72, dilute ammonia water tank; 73, eighth discharge pipe; 74, dilute ammonia water pump; 8, secondary condenser; 81, cold water inlet pipe; 82, cold water return pipe; 83, ninth discharge pipe; 9, absorption tower; 91, fifth vacuum pipe; 92, vacuum pump; 93, tenth discharge pipe; 94, fifth discharge pump; 95, concentrated ammonia water discharge pipe; 96, fourth return pipe; 97, ammonia water cooler; 98, low-temperature water inlet pipe; 99, make-up water pipe. DETAILED DESCRIPTION
[0027] The implementation modes of the present application are illustrated by specific embodiments below, and other advantages and effects of the present application can be easily understood by those skilled in the art from the content disclosed in the present specification.
[0028] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so as to describe the embodiments of the present application. In addition, the terms "include" and "have" and their synonyms, are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.
[0029] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the present invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0030] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.
[0031] Furthermore, the terms "installation," "setting," "equipped with," "connection," "linking," "fitting," and "fitting" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Similarly, "fitting" can mean completely or partially fitted. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0032] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0033] Example:
[0034] like Figure 1 As shown, this utility model discloses a dual-effect deammoniation system for arginine, including a raw material tank 1, a feed tank 2, a dual-effect deammoniation tower 3, a dual-effect evaporator 4, a primary-effect deammoniation tower 5, a primary-effect evaporator 6, a primary condenser 7, a secondary condenser 8, and an absorption tower 9. The main components of this utility model will be described in detail below:
[0035] like Figure 1 As shown, the lower discharge port of the raw material tank 1 is connected to a first discharge pipe 11, and a first discharge pump 12 is provided on the first discharge pipe 11 to deliver arginine mash to the feed tank 2 through the first discharge pipe 11.
[0036] like Figure 1As shown, the lower end discharge port of the feed tank 2 is connected with a second discharge pipe 21, and the second discharge pipe 21 is provided with a second discharge pump 22; the upper end feed port of the feed tank 2 is communicated with the first discharge pipe 11, and the arginine mash is pretreated by the feed tank 2, and then the treated arginine mash is delivered to the two-effect ammonia removal tower 3 through the second discharge pipe 21.
[0037] As shown in the figure, Figure 1 As shown, the lower end discharge port of the two-effect ammonia removal tower 3 is connected with a third discharge pipe 31, and the third discharge pipe 31 is connected with the feed port of a third discharge pump 32, and the arginine mash is delivered to the third discharge pump 32 through the third discharge pipe 31; the upper end feed port of the two-effect ammonia removal tower 3 is communicated with the second discharge pipe 21, and is used for receiving the arginine mash from the feed tank 2; the top gas outlet of the two-effect ammonia removal tower 3 is connected with a first vacuum pipe 33, and is used for removing the ammonia gas in the container; the steam inlet of the two-effect ammonia removal tower 3 is communicated with a steam inlet pipe 100, and is used for providing high-temperature steam for the two-effect ammonia removal tower 3.
[0038] As shown in the figure, Figure 1 As shown, the lower end discharge port of the two-effect ammonia removal tower 3 is connected with a third discharge pipe 31, and the third discharge pipe 31 is connected with the feed port of a third discharge pump 32, and the arginine mash is delivered to the third discharge pump 32 through the third discharge pipe 31; the upper end feed port of the two-effect ammonia removal tower 3 is communicated with the second discharge pipe 21, and is used for receiving the arginine mash from the feed tank 2; the top gas outlet of the two-effect ammonia removal tower 3 is connected with a first vacuum pipe 33, and is used for removing the ammonia gas in the container; the steam inlet of the two-effect ammonia removal tower 3 is communicated with a steam inlet pipe 100, and is used for providing high-temperature steam for the two-effect ammonia removal tower 3.
[0039] As shown in the figure, Figure 1 As shown, the lower end discharge port of the two-effect ammonia removal tower 3 is connected with a third discharge pipe 31, and the third discharge pipe 31 is connected with the feed port of a third discharge pump 32, and the arginine mash is delivered to the third discharge pump 32 through the third discharge pipe 31; the upper end feed port of the two-effect ammonia removal tower 3 is communicated with the second discharge pipe 21, and is used for receiving the arginine mash from the feed tank 2; the top gas outlet of the two-effect ammonia removal tower 3 is connected with a first vacuum pipe 33, and is used for removing the ammonia gas in the container; the steam inlet of the two-effect ammonia removal tower 3 is communicated with a steam inlet pipe 100, and is used for providing high-temperature steam for the two-effect ammonia removal tower 3.
[0039] As shown in the figure, Figure 1 As shown, the lower end discharge port of the two-effect ammonia removal tower 3 is connected with a third discharge pipe 31, and the third discharge pipe 31 is connected with the feed port of a third discharge pump 32, and the arginine mash is delivered to the third discharge pump 32 through the third discharge pipe 31; the upper end feed port of the two-effect ammonia removal tower 3 is communicated with the second discharge pipe 21, and is used for receiving the arginine mash from the feed tank 2; the top gas outlet of the two-effect ammonia removal tower 3 is connected with a first vacuum pipe 33, and is used for removing the ammonia gas in the container; the steam inlet of the two-effect ammonia removal tower 3 is communicated with a steam inlet pipe 100, and is used for providing high-temperature steam for the two-effect ammonia removal tower 3.
[0039] As shown in the figure, Figure 1 As shown, the lower end discharge port of the two-effect ammonia removal tower 3 is connected with a third discharge pipe 31, and the third discharge pipe 31 is connected with the feed port of a third discharge pump 32, and the arginine mash is delivered to the third discharge pump 32 through the third discharge pipe 31; the upper end feed port of the two-effect ammonia removal tower 3 is communicated with the second discharge pipe 21, and is used for receiving the arginine mash from the feed tank 2; the top gas outlet of the two-effect ammonia removal tower 3 is connected with a first vacuum pipe 33, and is used for removing the ammonia gas in the container; the steam inlet of the two-effect ammonia removal tower 3 is communicated with a steam inlet pipe 100, and is used for providing high-temperature steam for the two-effect ammonia removal tower 3.
[0040] As shown in the figure, Figure 1As shown, the lower discharge port of the first-effect evaporator 6 is connected to a seventh discharge pipe 61, which is connected to the inlets of the first-effect circulating pump 62 and the fourth discharge pump 63 respectively. The discharge port of the first-effect circulating pump 62 is connected to the upper inlet of the first-effect evaporator 6 through a third return pipe 64, which is used to circulate the arginine mash treated by the first-effect evaporator 6 back into the first-effect evaporator 6 for further treatment. The inlet of the fourth discharge pump 63 is also connected to a fifth discharge pipe 51, and the discharge port of the fourth discharge pump 63 is connected to a discharge pipe 101. A discharge cooler 101a is provided on the discharge pipe 101, and the discharge pipe 101 passes through the hot material channel of the discharge cooler 101a, which is used to discharge the treated arginine. The mash is cooled and discharged; the lower end of the first-effect evaporator 6 and the first-effect deammoniation tower 5 are connected through the second pipe 6a; the upper and lower parts of the first-effect evaporator 6 are respectively provided with air extraction ports and connected to the third vacuum pipe 65, which are used to extract ammonia gas from the container; the steam inlet of the first-effect evaporator 6 is connected to the steam inlet pipe 100, which is used to provide high-temperature steam to the first-effect evaporator 6; the condensate outlet of the first-effect evaporator 6 is connected to the primary condensate pipe 66, the primary condensate pipe 66 is connected to the top inlet of the primary condensate storage tank 67, the bottom outlet of the primary condensate storage tank 67 is connected to the primary condensate main pipe 68, and the primary condensate main pipe 68 is equipped with a primary condensate pump 69, which is used to recover the primary condensate from the steam.
[0041] like Figure 1 As shown, the air inlet of the first-stage condenser 7 is connected to the first vacuum pipe 33, the second vacuum pipe 43, and the third vacuum pipe 65, respectively. The upper and lower parts of the first-stage condenser 7 are respectively provided with air extraction ports and connected to the fourth vacuum pipe 71. The fourth vacuum pipe 71 is connected to a dilute ammonia water storage tank 72. The ammonia vapor is cooled and condensed into ammonia water through the first-stage condenser 7. The lower discharge port of the dilute ammonia water storage tank 72 is connected to an eighth discharge pipe 73. The eighth discharge pipe 73 is equipped with a dilute ammonia water pump 74. The lower circulating water inlet of the first-stage condenser 7 is connected to the circulating water inlet pipe 102. The lower circulating water return port of the first-stage condenser 7 is connected to the circulating water return pipe 103. The circulating water inlet pipe 102 is also connected to the cold material inlet of the discharge cooler 101a. The circulating water return pipe 103 is also connected to the cold material outlet of the discharge cooler 101a.
[0042] like Figure 1 As shown, the air inlet of the secondary condenser 8 is connected to the fourth vacuum pipe 71, the top feed inlet of the secondary condenser 8 is connected to the seventh discharge pipe 73, the water inlet at the bottom of the secondary condenser 8 is connected to the cold water inlet pipe 81, the water outlet at the top of the secondary condenser 8 is connected to the cold water return pipe 82 with a return water temperature of 12℃, and the discharge port at the bottom of the secondary condenser 8 is connected to the ninth discharge pipe 83. The ammonia vapor is cooled a second time through the secondary condenser 8 to improve the condensation efficiency of the ammonia water.
[0043] likeFigure 1 As shown, the top of the absorption tower 9 is equipped with a fifth vacuum pipe 91, which is connected to the exhaust port of the vacuum pump 92. The lower feed inlet of the absorption tower 9 is connected to the ninth discharge pipe 83. The bottom of the absorption tower 9 is equipped with a tenth discharge pipe 93, which is connected to the feed inlet of the fifth discharge pump 94. The lower discharge port of the fifth discharge pump 94 is connected to the concentrated ammonia water discharge pipe 95 and the fourth return pipe 96, respectively. The fourth return pipe 96 is connected to the upper feed inlet of the absorption tower 9 via an ammonia water cooler 97. The cold water outlet of the ammonia water cooler 97 is connected to the cold water inlet pipe 81, and the cold water inlet of the ammonia water cooler 97 is connected to the low-temperature water inlet pipe 98. The low-temperature water inlet pipe 98 supplies 7°C low-temperature water to the ammonia water cooler 97. The lower part of the absorption tower 9 is also equipped with a water replenishment interface connected to the water replenishment pipe 99. The concentration of ammonia water is increased through the circulation and absorption of ammonia gas in the absorption tower.
[0044] The method and principle of this utility model are as follows: Arginine mash is continuously deamed through a first-effect evaporator 6, a first-effect deammoniation tower 5, a second-effect evaporator 4, and a second-effect deammoniation tower 3 to improve its recovery rate; the deamed ammonia gas is continuously condensed through a first-stage condenser 7 and a second-stage condenser 8 to ensure the efficiency of ammonia gas condensation into ammonia water; the condensed ammonia water is repeatedly circulated in an absorption tower 9 to absorb ammonia gas and increase the solubility of ammonia water; the primary condensate generated in the system operation is stored in a primary condensate storage tank 67 and then discharged from the primary condensate main pipe 68; the secondary condensate is stored in a secondary condensate storage tank 45 and then discharged from the secondary condensate main pipe 46; and the ammonia water is discharged and collected through a concentrated ammonia water discharge pipe 95.
[0045] like Figure 1 As shown, to improve the recovery rate of arginine mash, a first return pipe 13 is connected to the upper return port of the raw material tank 1. The first return pipe 13 is connected to the discharge port of the fourth discharge pump 63, which is used to circulate the arginine mash processed by the system back into the raw material tank 1 for further processing.
[0046] like Figure 1 As shown, to prevent ammonia from accumulating in the feed tank, the upper exhaust port of the feed tank 2 is connected to a first exhaust pipe 23, and a gas-liquid separator 24 is installed on the first exhaust pipe 23; the liquid outlet of the gas-liquid separator 24 is connected to the reflux port of the feed tank 2 through a first reflux pipe 25, and the air inlet of the second-effect ammonia removal tower 3 is connected to the first exhaust pipe 23.
[0047] like Figure 1As shown, for convenient system control, the system includes: steam inlet pipe 100, discharge pipe 101, circulating water inlet pipe 102, circulating water return pipe 103, first discharge pipe 11, first return pipe 13, second discharge pipe 21, first exhaust pipe 23, first return pipe 25, third discharge pipe 31, first vacuum pipe 33, first pipe 4a, fourth discharge pipe 41, second return pipe 42, second vacuum pipe 43, secondary condensate pipe 44, secondary condensate main pipe 46, fifth discharge pipe 51, and so on. Control valves are installed on the following pipes: sixth discharge pipe 52, second exhaust pipe 53, second pipe 6a, seventh discharge pipe 61, third return pipe 64, third vacuum pipe 65, primary condensate pipe 66, primary condensate main pipe 68, fourth vacuum pipe 71, eighth discharge pipe 73, cold water inlet pipe 81, cold water return pipe 82, ninth discharge pipe 83, fifth vacuum pipe 91, tenth discharge pipe 93, concentrated ammonia water discharge pipe 95, fourth return pipe 96, low temperature water inlet pipe 98, and water replenishment pipe 99.
[0048] like Figure 1 As shown, in order to promote the precipitation of ammonia, a first spray device 26 is provided at the top of the feed tank 2, and the first spray device 26 is connected to the first discharge pipe 11.
[0049] like Figure 1 As shown, in order to promote uniform mixing of arginine mash delivered to the raw material tank, a second spray device 14 is provided above the raw material tank 1, and the interface of the second spray device 14 is connected to the pipeline from the CIP system.
[0050] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A dual-effect arginine deaminating system, characterized by, The utility model relates to a kind of two-effect ammonia removal tower and two-effect evaporator, comprising: Raw material tank (1), the lower end discharge port of the raw material tank (1) is connected with first discharge pipe (11), and first discharge pump (12) is equipped on the first discharge pipe (11); Feed tank (2), the lower end discharge port of the feed tank (2) is connected with second discharge pipe (21), and second discharge pump (22) is equipped on the second discharge pipe (21);The upper end feed inlet of the feed tank (2) is communicated with the first discharge pipe (11); Two-effect ammonia removal tower (3), the lower end discharge port of the two-effect ammonia removal tower (3) is connected with third discharge pipe (31), and the feed inlet of third discharge pump (32) is connected with the third discharge pipe (31);The upper end feed inlet of the two-effect ammonia removal tower (3) is communicated with the second discharge pipe (21), and the top air outlet of the two-effect ammonia removal tower (3) is connected with first vacuumizing pipeline (33), and the steam inlet of the two-effect ammonia removal tower (3) is communicated with steam pipeline (100); Two-effect evaporator (4), the lower end discharge port of the two-effect evaporator (4) is connected with fourth discharge pipe (41), and the feed inlet of third discharge pump (32) is connected with the fourth discharge pipe (41), and the upper end feed inlet of the two-effect evaporator (4) is connected with second return pipe (42), and the discharge port of third discharge pump (32) is connected with the second return pipe (42), and the two-effect evaporator (4) is communicated with the lower end of the two-effect ammonia removal tower (3) through first pipeline (4a), and the upper portion and lower portion of the two-effect evaporator (4) are equipped with air outlet and are connected on second vacuumizing pipeline (43) respectively;Condensate outlet of the two-effect evaporator (4) is connected with secondary condensate pipe (44), and the top water inlet of secondary condensate tank (45) is connected with the secondary condensate pipe (44), and the bottom water outlet of secondary condensate tank (45) is communicated with secondary condensate main pipe (46), and secondary condensate pump (47) is equipped on the secondary condensate main pipe (46); Single-effect ammonia removal tower (5), the lower end discharge port of the single-effect ammonia removal tower (5) is connected with fifth discharge pipe (51), and the upper end feed inlet of the single-effect ammonia removal tower (5) is connected with sixth discharge pipe (52), and the discharge port of third discharge pump (32) is connected with the sixth discharge pipe (52);The top air outlet of the single-effect ammonia removal tower (5) is connected with second exhaust pipe (53), and the air inlet of the two-effect evaporator (4) is connected with the second exhaust pipe (53); The lower end discharge port of the one-effect evaporator (6) is connected with the seventh discharge pipe (61), the seventh discharge pipe (61) is connected with the inlet of the one-effect circulating pump (62) and the fourth discharge pump (63) respectively, the discharge port of the one-effect circulating pump (62) is connected with the upper end inlet of the one-effect evaporator (6) through the third return pipe (64), the inlet of the fourth discharge pump (63) is also connected with the fifth discharge pipe (51), the discharge port of the fourth discharge pump (63) is connected with the discharge pipeline (101), the discharge pipeline (101) is provided with a discharge cooler (101a), the discharge pipeline (101) passes through the hot material passage of the discharge cooler (101a); the one-effect evaporator (6) is communicated with the lower end of the one-effect ammonia removal tower (5) through the second pipeline (6a); the upper part and the lower part of the one-effect evaporator (6) are respectively provided with air extraction ports and are connected on the third vacuum extraction pipeline (65); the steam inlet of the one-effect evaporator (6) is communicated with the steam inlet pipeline (100); the condensate water outlet of the one-effect evaporator (6) is connected with the primary condensate water pipe (66), the primary condensate water pipe (66) is connected with the top water inlet of the primary condensate water storage tank (67), the bottom water outlet of the primary condensate water storage tank (67) is communicated with the primary condensate water main pipe (68), and the primary condensate water main pipe (68) is provided with a primary condensate water pump (69); The inlet of the primary condenser (7) is connected with the first vacuum extraction pipeline (33), the second vacuum extraction pipeline (43) and the third vacuum extraction pipeline (65) respectively, the upper part and the lower part of the primary condenser (7) are respectively provided with air extraction ports and are connected on the fourth vacuum extraction pipeline (71), the fourth vacuum extraction pipeline (71) is connected with the dilute ammonia water storage tank (72), the lower end discharge port of the dilute ammonia water storage tank (72) is connected with the eighth discharge pipe (73), the eighth discharge pipe (73) is provided with a dilute ammonia water pump (74), the lower end circulating water inlet of the primary condenser (7) is connected with the circulating water inlet pipeline (102), the lower end circulating water return port of the primary condenser (7) is connected with the circulating water return pipeline (103), the circulating water inlet pipeline (102) is also connected with the cold material inlet of the discharge cooler (101a), and the circulating water return pipeline (103) is also connected with the cold material outlet of the discharge cooler (101a); The inlet of the primary condenser (7) is connected with the first vacuum extraction pipeline (33), the second vacuum extraction pipeline (43) and the third vacuum extraction pipeline (65) respectively, the upper part and the lower part of the primary condenser (7) are respectively provided with air extraction ports and are connected on the fourth vacuum extraction pipeline (71), the fourth vacuum extraction pipeline (71) is connected with the dilute ammonia water storage tank (72), the lower end discharge port of the dilute ammonia water storage tank (72) is connected with the eighth discharge pipe (73), the eighth discharge pipe (73) is provided with a dilute ammonia water pump (74), the lower end circulating water inlet of the primary condenser (7) is connected with the circulating water inlet pipeline (102), the lower end circulating water return port of the primary condenser (7) is connected with the circulating water return pipeline (103), the circulating water inlet pipeline (102) is also connected with the cold material inlet of the discharge cooler (101a), and the circulating water return pipeline (103) is also connected with the cold material outlet of the discharge cooler (101a); The inlet of the primary condenser (7) is connected with the first vacuum extraction pipeline (33), the second vacuum extraction pipeline (43) and the third vacuum extraction pipeline (65) respectively, the upper part and the lower part of the primary condenser (7) are respectively provided with air extraction ports and are connected on the fourth vacuum extraction pipeline (71), the fourth vacuum extraction pipeline (71) is connected with the dilute ammonia water storage tank (72), the lower end discharge port of the dilute ammonia water storage tank (72) is connected with the eighth discharge pipe (73), the eighth discharge pipe (73) is provided with a dilute ammonia water pump (74), the lower end circulating water inlet of the primary condenser (7) is connected with the circulating water inlet pipeline (102), the lower end circulating water return port of the primary condenser (7) is connected with the circulating water return pipeline (103), the circulating water inlet pipeline (102) is also connected with the cold material inlet of the discharge cooler (101a), and the circulating water return pipeline (103) is also connected with the cold material outlet of the discharge cooler (101a); An absorption tower (9) is provided with a fifth vacuumizing pipeline (91) at the top thereof, the fifth vacuumizing pipeline (91) is connected with the air outlet of a vacuum pump (92), the lower inlet of the absorption tower (9) is communicated with the ninth discharge pipeline (83), the bottom of the absorption tower (9) is provided with a tenth discharge pipeline (93), the tenth discharge pipeline (93) is connected with the feed inlet of a fifth discharge pump (94), the lower discharge outlet of the fifth discharge pump (94) is respectively connected with a concentrated ammonia water discharge pipeline (95) and a fourth return pipeline (96), the fourth return pipeline (96) is connected with the upper feed inlet of the absorption tower (9) through an ammonia water cooler (97), the cold water outlet of the ammonia water cooler (97) is communicated with the cold water inlet pipeline (81), the cold water inlet of the ammonia water cooler (97) is communicated with a low-temperature water inlet pipe (98), and the lower part of the absorption tower (9) is further provided with a water supplement interface connected with a water supplement pipeline (99).
2. The arginine bifunctional deaminating system according to claim 1, characterized in that: The upper end return outlet of the raw material tank (1) is connected with a first return pipeline (13), and the first return pipeline (13) is connected with the discharge outlet of the fourth discharge pump (63).
3. The arginine bifunctional deaminating system according to claim 2, characterized in that: The upper end exhaust outlet of the feed tank (2) is connected with a first exhaust pipeline (23), and the first exhaust pipeline (23) is provided with a gas-liquid separator (24); the liquid outlet of the gas-liquid separator (24) is connected with the return inlet of the feed tank (2) through a first return pipeline (25), and the gas inlet of the two-effect ammonia removal tower (3) is communicated with the first exhaust pipeline (23).
4. The arginine bifunctional deaminating system according to claim 3, characterized in that: Control valves are arranged on the steam inlet pipeline (100), the discharge pipeline (101), the circulating water inlet pipeline (102), the circulating water return pipeline (103), the first discharge pipeline (11), the first return pipeline (13), the second discharge pipeline (21), the first exhaust pipeline (23), the first return pipeline (25), the third discharge pipeline (31), the first vacuumizing pipeline (33), the first pipeline (4a), the fourth discharge pipeline (41), the second return pipeline (42), the second vacuumizing pipeline (43), the secondary condensate water pipeline (44), the secondary condensate water main pipeline (46), the fifth discharge pipeline (51), the sixth discharge pipeline (52), the second exhaust pipeline (53), the second pipeline (6a), the seventh discharge pipeline (61), the third return pipeline (64), the third vacuumizing pipeline (65), the primary condensate water pipeline (66), the primary condensate water main pipeline (68), the fourth vacuumizing pipeline (71), the eighth discharge pipeline (73), the cold water inlet pipeline (81), the cold water return pipeline (82), the ninth discharge pipeline (83), the fifth vacuumizing pipeline (91), the tenth discharge pipeline (93), the concentrated ammonia water discharge pipeline (95), the fourth return pipeline (96), the low-temperature water inlet pipe (98) and the water supplement pipeline (99).
5. The arginine bifunctional deaminating system according to claim 1, wherein: A first spraying device (26) is arranged at the top of the tank in the feed tank (2), and the first spraying device (26) is communicated with the first discharge pipeline (11).
6. The arginine bifunctional deaminating system according to claim 1, wherein: A second spraying device (14) is arranged above the raw material tank (1), and the interface of the second spraying device (14) is connected with a pipeline from a CIP system.