Industrial tail gas fermentation mash centrifugal system

Abstract

The invention discloses an industrial tail gas fermentation mash centrifugal system which comprises a raw material liquid tank, a centrifugal machine, a thick material tank, a clear liquid tank and a thick material temporary storage tank, feeding holes of the first centrifugal machine and the second centrifugal machine are respectively communicated with a discharging hole of the raw material liquid tank through a first pipeline, a concentrated liquid outlet is respectively communicated with a feeding hole of the concentrated material tank through a second pipeline, and a clear liquid outlet is respectively communicated with a feeding hole of the clear liquid tank through a fourth pipeline; a third pipeline connected with a discharge port of the thick material tank is communicated with a spray gun at the top of the drying tower, a feed port of the thick material temporary storage tank is communicated with a thick liquid outlet of the first centrifugal machine through a fifth pipeline, and a discharge port of the thick material temporary storage tank is communicated with a feed port of the second centrifugal machine through a sixth pipeline. And a seventh pipeline connected with a discharge hole of the thick material temporary storage tank is communicated with a spray gun at the top of the drying tower. By providing multiple path modes, free adjustment can be carried out along with the operation condition of an upstream working section, the centrifugal concentrated solution storage problem is solved, and free switching between single-stage centrifugation and two-stage centrifugation is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of protein centrifugal concentration, in particular to an industrial tail gas fermentation mash centrifugal system. Background Art

[0002] Industrial off-gas fermentation to ethanol is a new technology that uses carbon monoxide as a carbon source to produce ethanol through bacterial fermentation. After distilling the fermentation wastewater to extract ethanol, a certain amount of bacterial protein remains in the wastewater, significantly increasing the difficulty of wastewater treatment. Furthermore, the bacterial protein contained in the wastewater has a single composition and a high crude protein content, making it a high-value-added protein feed widely used in aquaculture, livestock, and poultry. Bacterial protein powder can replace some fish meal in the feed industry, reducing reliance on marine fish for high-grade protein feed, thus having significant environmental and economic benefits. Protein powder can be obtained through processes such as centrifugal concentration and tower drying.

[0003] Currently, the centrifugal concentration process is a single-stage process with limited tank capacity, which can easily stall upstream fermentation and distillation processes and impact the normal operation of downstream wastewater treatment. Furthermore, when fermentation is unstable, the original centrifugal concentration process produces a low OD value for the concentrated concentrate, consuming significant energy for drying. Summary of the Invention

[0004] In order to solve the above problems, the present application provides an industrial tail gas fermentation mash centrifugal system.

[0005] The present application provides an industrial tail gas fermentation mash centrifugal system, comprising a raw material liquid tank, a centrifuge, a concentrated material tank, a clear liquid tank and a concentrated material temporary storage tank, wherein the raw material liquid tank is used to receive fermentation mash, the centrifuge comprises at least one first centrifuge and at least one second centrifuge, the feed ports of the first centrifuge and the second centrifuge are respectively connected to the discharge port of the raw material liquid tank through a first pipeline, the feed port of the concentrated material tank is respectively connected to the concentrated liquid outlet of the first centrifuge and the second centrifuge through a second pipeline, the discharge port of the concentrated material tank is connected to the spray gun at the top of the drying tower through a third pipeline, and the clear liquid tank is connected to the spray gun at the top of the drying tower through a third pipeline. The feed port is connected to the clear liquid outlet of the first centrifuge and the second centrifuge respectively through the fourth pipeline, the feed port of the concentrated material storage tank is connected to the concentrated liquid outlet of the first centrifuge through the fifth pipeline, the discharge port of the concentrated material storage tank is connected to the feed port of the second centrifuge through the sixth pipeline, and the discharge port of the concentrated material storage tank is connected to the seventh pipeline connected to the spray gun on the top of the drying tower, wherein the first pipeline, the third pipeline, the sixth pipeline and the seventh pipeline all have pumping capabilities, and the first pipeline, the second pipeline, the fourth pipeline, the fifth pipeline, the sixth pipeline and the seventh pipeline are all installed with regulating valves.

[0006] In some embodiments, all the first pipelines are combined to form a trunk pipeline and at least two branch pipelines connected to the trunk pipeline, the trunk pipeline is equipped with a raw material liquid pump and a raw material liquid outlet regulating valve, and the branch pipelines are respectively equipped with a first centrifuge inlet regulating valve; the pipeline connected to the feed port of the raw material liquid tank is equipped with a raw material liquid inlet regulating valve.

[0007] In some embodiments, the feed ports of the first centrifuge and the second centrifuge are also connected to a CIP liquid feed pipeline, and the CIP liquid feed pipeline is installed with a CIP liquid inlet regulating valve; the clear liquid outlets of the first centrifuge and the second centrifuge are also connected to a light phase CIP liquid discharge pipeline, and the light phase CIP liquid discharge pipeline is installed with a light phase CIP liquid regulating valve; the concentrated liquid outlets of the first centrifuge and the second centrifuge are also connected to a heavy phase CIP liquid discharge pipeline, and the heavy phase CIP liquid discharge pipeline is installed with a heavy phase CIP liquid regulating valve.

[0008] In some embodiments, the second pipeline is equipped with a first regulating valve at the centrifuge heavy phase concentrate outlet.

[0009] In some embodiments, the third pipeline is sequentially installed with a rotor pump, an emulsification pump, and a high-pressure pump in the conveying direction.

[0010] In some embodiments, the fourth pipeline is installed with a centrifuge light phase clear liquid outlet regulating valve; the pipeline connected to the discharge port of the clear liquid tank is installed with a clear liquid delivery pump and is connected to the sewage treatment regulating tank.

[0011] In some embodiments, the fifth pipeline is equipped with a second regulating valve at the centrifuge heavy phase concentrate outlet.

[0012] In some embodiments, the seventh pipeline is equipped with a concentrate delivery pump and a first regulating valve for the temporary concentrate outlet. The end of the seventh pipeline away from the concentrate temporary storage tank is connected to the third pipeline between the rotor pump and the emulsification pump.

[0013] In some embodiments, the concentrate delivery pump on the seventh pipeline is closer to the concentrate temporary storage tank than the first regulating valve at the temporary concentrate outlet; the sixth pipeline and the seventh pipeline share a concentrate delivery pump, and the sixth pipeline is sequentially installed with the second regulating valve at the temporary concentrate outlet and the second regulating valve at the centrifuge inlet along the delivery direction.

[0014] In some embodiments, the raw material liquid tank, the concentrated material tank, and the concentrated material temporary storage tank are all equipped with a stirrer.

[0015] The beneficial effects of the present application are as follows: an industrial tail gas fermentation mash centrifugal system is provided, comprising a raw material liquid tank, a centrifuge, a concentrated material tank, a clear liquid tank and a concentrated material temporary storage tank. By adding a concentrated liquid temporary storage tank and related pipelines, the system can freely switch between one-stage centrifugation, two-stage centrifugation and centrifugal temporary storage modes. In the one-stage centrifugal mode, the feed liquid is sent to the concentrated liquid tank through the centrifuge, and then sent to the spray gun at the top of the drying tower along the third pipeline for spray drying. In the two-stage centrifugal mode, the feed liquid is first sent to the concentrated material temporary storage tank through the first centrifuge, and then returned to the second centrifuge along the sixth pipeline. The centrifugal machine performs a centrifugal operation, and finally sends the material to the spray gun on the top of the drying tower along the third pipeline for spray drying. In the centrifugal temporary storage mode, the material liquid after centrifugation by the first centrifuge is sent to the concentrated material temporary storage tank for temporary storage. After the liquid level of the concentrated material temporary storage tank is established, the concentrated liquid can be sent to the spray gun on the top of the drying tower along the seventh pipeline for spray drying. The second centrifuge can also be started, and the material liquid after centrifugation by the second centrifuge is sent to the concentrated liquid tank for temporary storage. After the liquid level of the concentrated liquid tank is established, the concentrated liquid can be sent to the spray gun on the top of the drying tower along the third pipeline for spray drying.

[0016] When the solid content of fermentation mash is high and the amount of fermentation mash fed into the centrifugal concentration tank is much larger than the amount of drying tower, the centrifugal temporary storage mode is entered. Taking the full-load production of 4 fermentation production lines as an example, when the concentrate tank and the concentrate temporary storage tank are full, the fermentation centrifugal concentrated liquid produced for 24 hours can be stored. The centrifuge can concentrate about 1000m3 of the fermentation centrifuge. 3 Fermentation mash; when the solid content of the fermentation mash is low when sampled and tested, and the amount of fermentation mash fed into the fermentation mash is much larger than the amount of centrifugal concentration and drying tower drying, the system enters the centrifugal temporary storage mode. Taking the full-load production of four fermentation production lines as an example, when the concentrate tank and the concentrate temporary storage tank are full, the system can store far more fermentation centrifugal concentrated liquid than produced in 24 hours.

[0017] This application provides multiple path modes, which can be freely adjusted according to the operating conditions of the upstream process section. It not only solves the storage problem of centrifugal concentrate and maintains stable production upstream and downstream, but also realizes free switching between single-stage centrifugation and two-stage centrifugation. It can cope with different upstream working conditions, improve equipment production efficiency, save energy and reduce consumption, and create economic benefits for the company. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention.

[0019] Figure 1 This is a schematic diagram of an industrial tail gas fermentation mash centrifugation system provided in this application.

[0020] Figure markings: 001-raw material liquid tank, 002A-first centrifuge, 002C-second centrifuge, 003-concentrated material tank, 004-clear liquid tank, 005-concentrated material temporary storage tank, 101-raw material liquid pump, 102-raw material liquid outlet regulating valve, 103-raw material liquid inlet regulating valve, 104-raw material liquid agitator, 105-CIP liquid inlet regulating valve, 201-centrifuge inlet first regulating valve, 202-centrifuge light phase clear liquid outlet regulating valve, 203-centrifuge heavy phase concentrated liquid outlet first regulating valve, 204-light phase CIP liquid regulating valve, 205- Heavy phase CIP liquid regulating valve, 301-rotor pump, 302-emulsification pump, 303-high-pressure pump, 304-concentrate agitator, 401-clear liquid delivery pump, 501-second regulating valve for centrifuge heavy phase concentrate outlet, 502-concentrate delivery pump, 503-second regulating valve for temporary concentrate outlet, 504-second regulating valve for centrifuge inlet, 505-first regulating valve for temporary concentrate outlet, 506-temporary concentrate agitator, ①-first pipeline, ②-second pipeline, ③-third pipeline, ④-fourth pipeline, ⑤-fifth pipeline, ⑥-sixth pipeline, ⑦-seventh pipeline. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0022] In addition, this application may repeat reference numbers and / or reference letters in different examples. This repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials, but those of ordinary skill in the art will recognize the application of other processes and / or the use of other materials.

[0023] This application provides an industrial tail gas fermentation mash centrifugal system, hereinafter referred to as this system, please refer to Figure 1 This system includes a raw material liquid tank 001, a centrifuge, a concentrate tank 003, a clear liquid tank 004, and a concentrate temporary storage tank 005. Each of these tanks is equipped with a stirrer. The system also includes multiple pipelines and regulating valves. By adding a concentrate temporary storage tank and related pipelines, the system can freely switch between single-stage centrifugation mode, two-stage centrifugation mode, and centrifugal temporary storage mode.

[0024] In the fermentation production line, after fermentation produces mash, it enters the distillation section for distillation and extraction of ethanol, and the distilled mash enters the raw liquid tank 001. This application refers to this mash as fermentation mash. The role of the raw liquid tank 001 includes but is not limited to receiving the fermentation mash. Please refer to Figure 1 The centrifuges include at least one first centrifuge 002A and at least one second centrifuge 002C. The feed ports of the first centrifuge 002A and the second centrifuge 002C are connected to the discharge port of the raw material tank 001 via a first pipeline ①. By controlling the regulating valve on the first pipeline ①, the fermentation mash in the raw material tank 001 is delivered to the first centrifuge 002A or the second centrifuge 002C, or both of the first centrifuge 002A and the second centrifuge 002C, by utilizing the pumping capacity of the first pipeline ①.

[0025] In addition to the above-mentioned feed inlet, the first centrifuge 002A and the second centrifuge 002C also have a concentrate outlet and a clear liquid outlet. The heavy phase concentrate produced by centrifugation is transported from the concentrate outlet, and the light phase clear liquid produced by centrifugation is transported from the clear liquid outlet. Figure 1 The concentrated liquid outlet of the first centrifuge 002A and the second centrifuge 002C are connected to the feed port of the concentrated material tank 003 through the second pipeline ②. The second pipeline ② is equipped with a regulating valve. By controlling the regulating valve on the second pipeline ②, the heavy phase concentrated liquid can be transported to the concentrated material tank 003. The discharge port of the concentrated material tank 003 is connected to the third pipeline ③. The third pipeline ③ has a pumping capacity. The third pipeline ③ is connected to the spray gun at the top of the drying tower. The heavy phase concentrated liquid can be pumped along the third pipeline ③ to the spray gun at the top of the drying tower for spray drying. Please continue to refer to Figure 1 The clear liquid outlets of the first centrifuge 002A and the second centrifuge 002C are connected to the feed port of the clear liquid tank 004 through the fourth pipeline ④. The fourth pipeline ④ is equipped with a regulating valve. By controlling the regulating valve on the fourth pipeline ④, the light phase clear liquid can be transported to the clear liquid tank 004. The light phase clear liquid is subsequently sent from the clear liquid tank 004 to the next equipment for reprocessing.

[0026] Please refer to Figure 1 The feed port of the concentrated material storage tank 005 and the concentrated liquid outlet of the first centrifuge 002A are connected through the fifth pipeline ⑤, the discharge port of the concentrated material storage tank 005 and the feed port of the second centrifuge 002C are connected through the sixth pipeline ⑥, and the seventh pipeline ⑦ connected to the discharge port of the concentrated material storage tank 005 is connected to the spray gun on the top of the drying tower. The sixth pipeline ⑥ and the seventh pipeline ⑦ both have pumping capabilities, and the fifth pipeline ⑤, the sixth pipeline ⑥ and the seventh pipeline ⑦ are all equipped with regulating valves.

[0027] This system involves the control system switching mode, specifically the DCS system. The foreign name of DCS is Distributed Control System, which means distributed control system. It is a new generation of instrument control system based on microprocessors and adopts the design principles of decentralized control functions, centralized display operations, and taking into account both separate autonomy and comprehensive coordination.

[0028] When the system is used, the liquid level in the raw liquid tank 001 must first be established, the raw liquid agitator 104 of the raw liquid tank 001 must be started, and the fermentation mash in the raw liquid tank 001 must be sampled. When the solid content of the fermentation mash is low when sampled and tested, the system switches to the two-stage centrifugation mode, and the DCS system controls the relevant regulating valves. The fermentation mash is sent from the raw liquid tank 001 along the first pipeline ① to the first centrifuge 002A, and the fermentation mash undergoes one-stage centrifugal concentration in the first centrifuge 002A. The heavy phase concentrate after the one-stage centrifugal concentration is sent to the concentrated material temporary storage tank 005 along the fifth pipeline ⑤. After the liquid level of the concentrated material temporary storage tank 005 is established, the second centrifuge 002C is started, and the concentrate in the concentrated material temporary storage tank 005 is sent to the second centrifuge 002C along the sixth pipeline ⑥. The concentrate is subjected to two-stage centrifugal concentration in the second centrifuge 002C, and the heavy phase concentrate after the two-stage centrifugal concentration is sent to the concentrated material tank 003 along the second pipeline ②, and finally sent to the spray gun on the top of the drying tower along the third pipeline ③ for spray drying.

[0029] The liquid level is established in raw liquid tank 001, the raw liquid agitator 104 of raw liquid tank 001 is started, and the fermented mash in raw liquid tank 001 is sampled. When the solid content of the fermented mash is high and the amount of fermented mash fed is balanced with the amount of centrifugal concentration and the drying amount of the drying tower, the system switches to the first-stage centrifugal mode. The balance here means that the heavy phase concentrate produced by the first-stage centrifugal concentration can be completely dried in real time by the drying tower. The DCS system controls the relevant regulating valves, and the fermented mash is sent from raw liquid tank 001 along the first pipeline ① to the first centrifuge 002A and / or the second centrifuge 002C for first-stage centrifugal concentration. The concentrated concentrate is then sent along the second pipeline ② to the concentrated material tank 003. After the liquid level of concentrated material tank 003 is established, the concentrated liquid agitator 304 of concentrated material tank 003 is started, and the delivery pump on the third pipeline ③ is started to pump the concentrated liquid to the high-pressure spray gun at the top of the drying tower for spray drying.

[0030] The liquid level is established in the raw liquid tank 001, the raw liquid agitator 104 of the raw liquid tank 001 is started, and the fermentation mash in the raw liquid tank 001 is sampled. When the solid content of the fermentation mash is high and the amount of fermentation mash fed in is much larger than the centrifugal concentration amount and the drying amount of the drying tower, the system switches to the centrifugal temporary storage mode, the DCS system controls the relevant regulating valves, starts the first centrifuge 002A, and the fermentation mash is sent from the raw material liquid tank 001 along the first pipeline ① to the first centrifuge 002A, the fermentation mash undergoes primary centrifugal concentration in the first centrifuge 002A, and the heavy phase concentrate after centrifugal concentration is sent to the concentrated material temporary storage tank 005 along the fifth pipeline ⑤ for temporary storage. After the liquid level of the concentrated material temporary storage tank 005 is established, the temporary concentrated liquid agitator 506 of the concentrated material temporary storage tank 005 is started, and the concentrated liquid is sent to the spray gun at the top of the drying tower along the seventh pipeline ⑦ for spray drying; at the same time, the second centrifuge 002C can also be started, and the liquid centrifuged by the second centrifuge 002C is sent to the concentrated liquid tank for temporary storage. After the liquid level of the concentrated liquid tank is established, the concentrated liquid can be sent to the spray gun at the top of the drying tower along the third pipeline ③ for spray drying.

[0031] The centrifuges in this system include at least one first centrifuge 002A and at least one second centrifuge 002C. Figure 1 The scheme of setting two first centrifuges 002A and two second centrifuges 002C is shown. The two first centrifuges 002A are similar to the parallel relationship in the circuit, and the two second centrifuges 002C are also similar. It should be supplemented here that, based on the Figure 1 In a scheme of setting two first centrifuges 002A and two second centrifuges 002C, the system switches to a one-stage centrifugation mode or a two-stage centrifugation mode, and the two first centrifuges 002A and the two second centrifuges 002C can be enabled individually or simultaneously.

[0032] When the solid content of fermentation mash is high and the amount of fermentation mash fed into the centrifugal concentration tank is much larger than the amount of drying tower, the centrifugal temporary storage mode is entered. Taking the full-load production of 4 fermentation production lines as an example, when the concentrate tank and the concentrate temporary storage tank are full, the fermentation centrifugal concentrated liquid produced for 24 hours can be stored. The centrifuge can concentrate about 1000m3 of the fermentation centrifuge. 3 Fermentation mash. When sampling and testing show a low solids content in the fermentation mash, and the amount of mash fed into the fermentation mash far exceeds the amount of centrifugal concentration and drying tower drying, the system enters centrifugal temporary storage mode. Taking four fermentation production lines operating at full capacity as an example, when the concentrate tank and concentrate temporary storage tank are full, they can store far more than 24 hours of fermentation centrifugal concentrate.

[0033] In summary, this application provides multiple path modes that can be freely adjusted according to the operating conditions of the upstream process. It not only solves the storage problem of centrifugal concentrate and maintains smooth production upstream and downstream, but also realizes free switching between single-stage centrifugation and two-stage centrifugation. It can cope with different upstream working conditions, improve equipment production efficiency, save energy and reduce consumption, and create economic benefits for the company.

[0034] The above definition defines that the first centrifuge 002A and the second centrifuge 002C are connected to the raw liquid tank 001 via first pipelines ①, respectively. This involves at least two first pipelines ①, and the number of first pipelines ① matches the total number of centrifuges. In some embodiments, all first pipelines ① are redesigned to form a trunk pipeline and at least two branch pipelines connected to the trunk pipeline. The trunk pipeline is equipped with a raw liquid pump 101 and a raw liquid outlet regulating valve 102, and the branch pipelines are each equipped with a first centrifuge inlet regulating valve 201. The raw liquid pump 101 provides pumping capacity for the first pipeline ①, while the raw liquid outlet regulating valve 102 regulates the delivery flow. The fermented mash is then centrifuged via the first centrifuge inlet regulating valve 201. This configuration significantly reduces the number of pipelines required.

[0035] In some embodiments, the pipeline connected to the feed port of the raw liquid tank 001 is installed with a raw liquid inlet regulating valve 103, and the raw liquid inlet regulating valve 103 is used to regulate the liquid inlet flow of the raw liquid tank 001.

[0036] The centrifuge also needs to be CIP cleaned. CIP English name is Cleaning In Place, which means cleaning in place. Figure 1 The system is designed with a CIP liquid feed pipeline, a light phase CIP liquid discharge pipeline and a heavy phase CIP liquid discharge pipeline. The feed ports of the first centrifuge 002A and the second centrifuge 002C are both connected to the CIP liquid feed pipeline, the clear liquid outlets of the first centrifuge 002A and the second centrifuge 002C are also connected to the light phase CIP liquid discharge pipeline, and the concentrated liquid outlets of the first centrifuge 002A and the second centrifuge 002C are also connected to the heavy phase CIP liquid discharge pipeline. A CIP liquid inlet regulating valve 105 is installed on the CIP liquid feed pipeline, a light phase CIP liquid regulating valve 204 is installed on the light phase CIP liquid discharge pipeline, and a heavy phase CIP liquid regulating valve 205 is installed on the heavy phase CIP liquid discharge pipeline.

[0037] When the centrifuge running time reaches the preset value, click on the centrifuge to set the CIP parameters, including entering the CIP feed rate constant, back pressure constant and slag discharge interval, click on the centrifuge CIP mode, and the DCS system controls the opening of the CIP liquid inlet regulating valve 105, the light phase CIP liquid regulating valve 204 and the heavy phase CIP liquid regulating valve 205 to perform CIP cleaning.

[0038] In some embodiments, see Figure 1 The regulating valve installed on the second pipeline ② is the first regulating valve 203 at the centrifuge heavy phase concentrated liquid outlet, which controls the on-off and delivery flow of the second pipeline ②.

[0039] In some embodiments, see Figure 1 The third pipeline ③ is installed with a rotor pump 301, an emulsification pump 302 and a high-pressure pump 303 in sequence according to the conveying direction. The rotor pump 301 provides the pumping capacity of the third pipeline ③. The emulsification pump 302 generates a strong shear force during high-speed rotation to mix, homogenize, disperse and crush the concentrate. The high-pressure pump 303 delivers the concentrate to the spray gun at the top of the drying tower in a high-pressure state for spray drying.

[0040] In some embodiments, see Figure 1 The regulating valve installed on the fourth pipeline ④ is the centrifuge light phase clear liquid outlet regulating valve 202, which controls the output state of the centrifuge light phase clear liquid through the centrifuge light phase clear liquid outlet regulating valve 202. The pipeline connected to the discharge port of the clear liquid tank 004 is installed with a clear liquid delivery pump 401. The pipeline connected to the discharge port of the clear liquid tank 004 is connected to the sewage treatment regulating tank, and the clear liquid is delivered to the sewage treatment regulating tank for treatment through the clear liquid delivery pump 401.

[0041] In some embodiments, see Figure 1 The regulating valve installed on the fifth pipeline ⑤ is the second regulating valve 501 at the centrifuge heavy phase concentrated liquid outlet, and the second regulating valve 501 at the centrifuge heavy phase concentrated liquid outlet controls the conveying state of the fifth pipeline ⑤.

[0042] In some embodiments, see Figure 1 The regulating valve installed in pipeline 7 (7) serves as the first regulating valve 505 at the outlet of the temporary concentrated solution. A concentrated solution delivery pump 502 is installed in pipeline 7, providing pumping capacity for pipeline 7. The end of pipeline 7, away from the concentrated solution temporary storage tank 005, is connected to pipeline 3 (3) between the rotor pump 301 and the emulsification pump 302. This approach utilizes a shared emulsification pump 302 and high-pressure pump 303 between pipeline 7 (7) and pipeline 3 (3), simplifying the system's component layout.

[0043] In some embodiments, see Figure 1 On the seventh pipeline ⑦, the concentrate delivery pump 502 is closer to the concentrate temporary storage tank 005 than the first regulating valve 505 at the temporary concentrate outlet. The sixth pipeline ⑥ and the seventh pipeline ⑦ share the concentrate delivery pump 502. The sixth pipeline ⑥ is sequentially installed with the second regulating valve 503 at the temporary concentrate outlet and the second regulating valve 504 at the centrifuge inlet along the delivery direction, further simplifying the device layout of this system.

[0044] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0045] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0046] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. An industrial tail gas fermentation mash centrifugal system, characterized in that: include: Raw material liquid tank, used to receive fermentation mash; The centrifuge comprises at least one first centrifuge and at least one second centrifuge, wherein the feed ports of the first centrifuge and the second centrifuge are respectively connected to the discharge port of the raw material liquid tank through a first pipeline; A concentrated material tank, wherein the feed port of the concentrated material tank is connected to the concentrated liquid outlets of the first centrifuge and the second centrifuge respectively through second pipelines, and the discharge port of the concentrated material tank is connected to a third pipeline connected to the spray gun on the top of the drying tower; a clear liquid tank, wherein the feed port of the clear liquid tank is connected to the clear liquid outlets of the first centrifuge and the second centrifuge respectively through fourth pipelines; A concentrated material temporary storage tank, wherein the feed port of the concentrated material temporary storage tank is connected to the concentrated liquid outlet of the first centrifuge via a fifth pipeline, the discharge port of the concentrated material temporary storage tank is connected to the feed port of the second centrifuge via a sixth pipeline, and the discharge port of the concentrated material temporary storage tank is connected to a seventh pipeline connected to the spray gun at the top of the drying tower; The first pipeline, the third pipeline, the sixth pipeline and the seventh pipeline all have pumping capabilities, and the first pipeline, the second pipeline, the fourth pipeline, the fifth pipeline, the sixth pipeline and the seventh pipeline are all installed with regulating valves.

2. The industrial tail gas fermentation mash centrifugal system according to claim 1, characterized in that: All the first pipelines are combined to form a trunk pipeline and at least two branch pipelines connected to the trunk pipeline, wherein the trunk pipeline is equipped with a raw material liquid pump and a raw material liquid outlet regulating valve, and the branch pipelines are respectively equipped with a first regulating valve for the centrifuge inlet; The pipeline connected to the feed port of the raw material liquid tank is installed with a raw material liquid inlet regulating valve.

3. The industrial tail gas fermentation mash centrifugal system according to claim 1, characterized in that: The feed inlets of the first centrifuge and the second centrifuge are also connected to a CIP liquid feed pipeline, and the CIP liquid feed pipeline is installed with a CIP liquid inlet regulating valve; The clear liquid outlets of the first centrifuge and the second centrifuge are also connected to light phase CIP liquid discharge pipelines, and the light phase CIP liquid discharge pipelines are installed with light phase CIP liquid regulating valves; The concentrated liquid outlets of the first centrifuge and the second centrifuge are also connected to heavy phase CIP liquid discharge pipelines, and the heavy phase CIP liquid discharge pipelines are installed with heavy phase CIP liquid regulating valves.

4. The industrial tail gas fermentation mash centrifugal system according to claim 1, characterized in that: The second pipeline is equipped with a first regulating valve at the centrifuge heavy phase concentrated liquid outlet.

5. The industrial tail gas fermentation mash centrifugal system according to claim 1, characterized in that: The third pipeline is sequentially installed with a rotor pump, an emulsification pump and a high-pressure pump according to the conveying direction.

6. The industrial tail gas fermentation mash centrifugal system according to claim 1, characterized in that: The fourth pipeline is equipped with a centrifuge light phase clear liquid outlet regulating valve; The pipeline connected to the discharge port of the clear liquid tank is installed with a clear liquid delivery pump and is connected to the sewage treatment regulating tank.

7. The industrial tail gas fermentation mash centrifugal system according to claim 1, characterized in that: The fifth pipeline is equipped with a second regulating valve at the centrifuge heavy phase concentrated liquid outlet.

8. The industrial tail gas fermentation mash centrifugal system according to claim 5, characterized in that: The seventh pipeline is equipped with a concentrate delivery pump and a first regulating valve for a temporary concentrate outlet. One end of the seventh pipeline away from the concentrate temporary storage tank is connected to the third pipeline between the rotor pump and the emulsification pump.

9. The industrial tail gas fermentation mash centrifugal system according to claim 8, characterized in that: On the seventh pipeline, the concentrate delivery pump is closer to the concentrate temporary storage tank than the first regulating valve at the temporary concentrate outlet; The sixth pipeline and the seventh pipeline share the concentrate delivery pump. The sixth pipeline is sequentially installed with a second regulating valve for the temporary concentrate outlet and a second regulating valve for the centrifuge inlet along the delivery direction.

10. The industrial tail gas fermentation mash centrifugal system according to claim 1, wherein: The raw material liquid tank, the concentrated material tank and the concentrated material temporary storage tank are all equipped with a stirrer.

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