Mash tank for on-line cleaning of sediment on clear liquid side

Abstract

The invention relates to the technical field of sediment cleaning of mash tanks, in particular to a mash tank for online cleaning of sediment on a clear liquid side. The device comprises a tank body and a mash feeding pipeline, the tank body is internally provided with a concentrated liquid area and a clear liquid area, the clear liquid area is provided with a liquid outlet pipeline, the concentrated liquid area is provided with a concentrated liquid area blow-off pipeline, the mash feeding pipeline is used for conveying mash to the concentrated liquid area, and the clear liquid area comprises a clear liquid area shell, a clear liquid input mechanism and a clear liquid stirring mechanism. A clear liquid containing space is formed in the clear liquid area shell, a clear liquid area blow-off pipeline is arranged at the bottom of the clear liquid containing space, the clear liquid input mechanism is used for enabling the clear liquid containing space to be communicated with or isolated from the concentrated liquid area, and the clear liquid stirring mechanism is used for stirring clear mash in the clear liquid containing space. Online cleaning of the clear liquid side of the mash tank of the chemical plant can be achieved, cleaning time can be saved, adverse effects of reuse water on production of an early-stage workshop section are reduced, personnel cost is reduced, operation is convenient, and time and labor are saved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of sediment cleaning in mash tanks, and particularly to a mash tank with online cleaning of sediments on the clear liquid side. Background Art

[0002] During the chemical production process, a lot of production water can be reused with remarkable utilization effects, but it contains many substances that affect production. When the mash enters the thick mash side of the mash tank, most of the sediments will sink, and the clear liquid and a small part of the thick mash enter the clear liquid side and gradually deposit at the bottom of the clear liquid side.

[0003] Currently, cleaning the sediments at the bottom of the clear liquid side of the mash tank requires manual operation during shutdown, which has an adverse impact on the production of the previous process by the recycled water, with high personnel costs and time-consuming and laborious operation. Summary of the Invention

[0004] The present disclosure aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0005] To this end, the present disclosure provides a mash tank with online cleaning of sediments on the clear liquid side, including a tank body and a mash feed pipeline. The interior of the tank body has a thick liquid area and a clear liquid area. The clear liquid area is provided with a liquid outlet pipeline, and the thick liquid area is provided with a sewage pipeline for the thick liquid area. The mash feed pipeline is used to convey mash to the thick liquid area, wherein,

[0006] The clear liquid area includes a clear liquid area housing, a clear liquid input mechanism, and a clear liquid stirring mechanism. The interior of the clear liquid area housing has a clear liquid accommodation space. The bottom of the clear liquid accommodation space is provided with a sewage pipeline for the clear liquid area. The clear liquid input mechanism is used to connect or isolate the clear liquid accommodation space from the thick liquid area, and the clear liquid stirring mechanism is used to stir the clear mash in the clear liquid accommodation space.

[0007] In a feasible implementation manner, the clear liquid stirring mechanism includes a plurality of stirring members, and the stirring members are arranged at intervals along the extending direction of the clear liquid accommodation space.

[0008] In a feasible implementation manner, the stirring member includes a driving motor, a speed reducer, and a stirrer. The stirrer is connected to the driving motor through the speed reducer. The stirrer is used to stir the clear mash, and the driving motor is used to provide the force for the stirrer to stir the clear mash.

[0009] In a feasible implementation manner, the stirring member is arranged on one side close to the bottom of the clear liquid accommodation space.

[0010] In a feasible embodiment, it further includes a pressure relief pipeline, which comprises a pipeline body, a first pneumatic valve and a second pneumatic valve. One end of the pipeline body communicates with the clear liquid accommodating space, and the opposite end is provided with an exhaust interface and an air inlet interface. The first pneumatic valve is connected to the exhaust interface, and the second pneumatic valve is connected to the air inlet interface.

[0011] In a feasible embodiment, it further includes a pressure sensor, which is arranged inside the clear liquid accommodating space.

[0012] In a feasible embodiment, the sewage pipeline in the clear liquid area comprises a third pneumatic valve and a sewage pipe body in the clear liquid area. One end of the sewage pipe body in the clear liquid area communicates with the clear liquid accommodating space, and the opposite end communicates with the sewage pipeline in the concentrated liquid area. The third pneumatic valve is used to control the connection or isolation between the sewage pipe body in the clear liquid area and the clear liquid accommodating space.

[0013] In a feasible embodiment, the clear liquid input mechanism comprises a driving member and an opening and closing valve. The opening and closing valve is arranged at the top of the housing in the clear liquid area, and the driving member is used to provide the acting force for opening or closing the opening and closing valve.

[0014] In a feasible embodiment, it further includes a liquid level sensor in the clear liquid area. The liquid level sensor in the clear liquid area comprises a first liquid level sensor and a second liquid level sensor. The first liquid level sensor is arranged between the clear liquid stirring mechanism and the liquid outlet pipeline, and the second liquid level sensor is arranged between the clear liquid stirring mechanism and the bottom of the clear liquid accommodating space.

[0015] In a feasible embodiment, the liquid outlet pipeline is arranged on one side close to the top of the clear liquid accommodating space.

[0016] Compared with the prior art, the present disclosure has at least the following beneficial effects: The interior of the tank body of the present disclosure has a concentrated liquid area and a clear liquid area, and the concentrated liquid area and the clear liquid area are relatively independent spaces. The clear liquid input mechanism prevents the mash liquid in the concentrated liquid area from flowing into the clear liquid area all the time, reducing the sediment of the clear mash liquid in the clear liquid area, and enabling the sediment of the clear mash liquid in the clear liquid area to deposit better. When the sediment in the clear liquid area accumulates to a certain extent, the clear liquid stirring mechanism can be used to stir the clear mash liquid in the clear liquid accommodating space online, realizing the online cleaning of the clear liquid side of the mash tank in the chemical plant without stopping the machine for maintenance, saving cleaning time, reducing the adverse impact of recycled water on the production of the previous process section, reducing labor costs, and being convenient to operate, time-saving and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present disclosure and used together with the specification to explain the principles of the present disclosure.

[0018] To more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] By reading the following detailed description of the exemplary embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of illustrating the exemplary embodiments and are not considered to be a limitation of the present application. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0020] Figure 1 is a schematic diagram of the overall sectional structure of the present disclosure;

[0021] Figure 2 is a schematic diagram of the structure of the clear liquid area of the present disclosure.

[0022] Among them, Figures 1 to 2 the corresponding relationship between the reference numerals in the drawings and the component names is:

[0023] 100 - clear liquid accommodation space; 200 - first liquid level sensor; 300 - second liquid level sensor; 400 - clear liquid side remote liquid level transmitter;

[0024] 1 - tank body; 11 - concentrated liquid area; 110 - concentrated liquid area sewage discharge pipeline; 12 - clear liquid area; 120 - liquid outlet pipeline; 121 - clear liquid area housing; 122 - clear liquid input mechanism; 1221 - driving member; 1222 - opening and closing valve; 123 - clear liquid stirring mechanism; 1231 - driving motor; 1232 - reducer; 1233 - stirrer; 124 - clear liquid area sewage discharge pipeline; 1241 - third pneumatic valve; 1242 - clear liquid area sewage discharge pipe body; 2 - mash feed pipeline; 3 - pressure relief and charging pipeline; 31 - pipeline body; 32 - first pneumatic valve; 33 - second pneumatic valve; 4 - pressure sensor. Specific Embodiments

[0025] In order to be able to more clearly understand the above-mentioned objects, features, and advantages of the present disclosure, the following will further describe the solutions of the present disclosure. It should be noted that, without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0026] In the following description, many specific details are set forth to fully understand the present disclosure, but the present disclosure can also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only a part of the embodiments of the present disclosure, rather than all of the embodiments.

[0027] Currently, cleaning the sediment at the bottom of the clear liquid side of the mash tank requires shutting down the machine for manual operation, which has an adverse impact on the production of the previous process by the recycled water. The personnel cost is relatively high and the operation is time-consuming and laborious.

[0028] Based on this, the embodiments of the present disclosure provide a mash tank for online cleaning of sediments on the clear liquid side. The interior of the tank body of the present disclosure has a thick liquid area and a clear liquid area. The thick liquid area and the clear liquid area are relatively independent spaces. The clear liquid input mechanism prevents the mash in the thick liquid area from continuously flowing into the clear liquid area, reducing the sediments of the clear mash in the clear liquid area and enabling the sediment of the clear mash in the clear liquid area to be better deposited. When the sediment in the clear liquid area accumulates to a certain extent, the clear liquid stirring mechanism can be used to stir the clear mash in the clear liquid accommodation space online, realizing the online cleaning of the clear liquid side of the mash tank in a chemical plant without shutting down for maintenance, saving cleaning time, reducing the adverse impact of the recycled water on the production of the previous process, reducing the personnel cost, and being convenient to operate, time-saving and labor-saving.

[0029] The following specifically describes the mash tank for online cleaning of sediments on the clear liquid side through specific embodiments:

[0030] Refer to Figures 1 to 2 As shown, the present disclosure provides a mash tank for online cleaning of sediments on the clear liquid side, including a tank body 1 and a mash feed pipeline 2. The interior of the tank body 1 has a thick liquid area 11 and a clear liquid area 12. The clear liquid area 12 is provided with a liquid outlet pipeline 120, and the thick liquid area 11 is provided with a thick liquid area sewage pipeline 110. The mash feed pipeline 2 is used to convey mash to the thick liquid area 11. Among them, the clear liquid area 12 includes a clear liquid area housing 121, a clear liquid input mechanism 122 and a clear liquid stirring mechanism 123. The interior of the clear liquid area housing 121 has a clear liquid accommodation space 100. The bottom of the clear liquid accommodation space 100 is provided with a clear liquid area sewage pipeline 124. The clear liquid input mechanism 122 is used to connect or isolate the clear liquid accommodation space 100 from the thick liquid area 11, and the clear liquid stirring mechanism 123 is used to stir the clear mash in the clear liquid accommodation space 100.

[0031] The interior of the tank body of the present disclosure has a thick liquid area 11 and a clear liquid area 12. The thick liquid area 11 and the clear liquid area 12 are relatively independent spaces. The clear liquid input mechanism 122 prevents the mash in the thick liquid area 11 from continuously flowing into the clear liquid area 12, effectively reducing the sediments of the clear mash in the clear liquid area 12 and enabling the sediment of the clear mash in the clear liquid area 12 to be better deposited. When the sediment in the clear liquid area 12 accumulates to a certain extent, the clear liquid stirring mechanism 123 can be used to stir the clear mash in the clear liquid accommodation space 100 online, realizing the online cleaning of the clear liquid side of the mash tank in a chemical plant without shutting down for maintenance, saving cleaning time, reducing the adverse impact of the recycled water on the production of the previous process, reducing the personnel cost, and being convenient to operate, time-saving and labor-saving.

[0032] Specifically, the supernatant zone housing 121 of the present disclosure can be an independently fabricated unit, designed to define a sealed space within the tank body 1 that is isolated from the concentrated liquid zone 11. Alternatively, a cover plate can be added to the internal partition of an existing mash tank to form a sealed space isolated from the concentrated liquid zone 11. It should be noted that the sealed space described herein refers to the state when the supernatant input mechanism 12 is closed and both the inlet and outlet of the supernatant zone housing 121 are closed. When the supernatant input mechanism 12 is open, the supernatant accommodation space 100 inside the supernatant zone housing 121 communicates with the concentrated liquid zone 11, and the mash in the concentrated liquid zone 11 can flow into the supernatant zone 11. At this time, the sealing of the supernatant zone housing 121 is broken; it can be understood that when either the supernatant discharge pipeline 124 of the supernatant zone housing 121 or the liquid outlet pipeline 120 communicating with the supernatant accommodation space 100 is open, the sealing of the supernatant zone housing 121 will also be broken.

[0033] The supernatant input mechanism 122 of the present disclosure can be selected from active input methods and passive input methods. Among them, the active input method can be to set a fluid injection pump or other mechanism with active fluid input at any position of the supernatant zone housing 121 adjacent to the concentrated liquid zone. Specifically, the present disclosure sets the supernatant input mechanism 122 at the top of the supernatant zone housing 121, so that the mash in the concentrated liquid zone 11 is input at the top of the supernatant zone housing 121, increasing the sedimentation travel of the mash, and reducing the sediment in the clearer mash in the area closer to the top of the supernatant zone housing 121 to ensure the quality of the clearer mash. The passive input method is to set the supernatant input mechanism 122 as an on-off valve such as a butterfly valve, ball valve, or gate valve. When the valve is open, the mash in the concentrated liquid zone 11 naturally flows into the supernatant accommodation space 100 of the supernatant zone housing 121. The supernatant input mechanism 122 of the present disclosure specifically selects the passive input method to reduce equipment failure rate and usage cost. Further, the supernatant input mechanism 122 of the present disclosure includes a driving member 1221 and an on-off valve 1222. The on-off valve 1222 is arranged at the top of the supernatant zone housing 121, and the driving member 1221 is used to provide the force for opening or closing the on-off valve 1222. The on-off valve 1222 is arranged at the top of the supernatant zone housing 121, which can better precipitate the sediments in the mash entering the supernatant zone 12. Specifically, the on-off valve 1222 can be selected as a pneumatic butterfly valve. The driving member 1221 is composed of a pneumatic butterfly valve stem, a pneumatic butterfly valve cylinder, a pneumatic butterfly valve control solenoid valve, a pressure gauge of the pressure regulating valve, a pressure reducing valve, and a pressure reducing valve inlet pipeline. Its driving principle is a well-known technology of pneumatic butterfly valves and will not be elaborated here.

[0034] The supernatant stirring mechanism 123 of the present disclosure can be selected from stirring paddles, stirring rods, turbines, impellers, etc., which can agitate the liquid or drive the liquid to move, aiming to disperse or mix the sediment deposited at the bottom of the supernatant accommodating space 100. The number of the supernatant stirring mechanisms 123 can be set to one or more, and its driving method can be selected from electric drive or manual drive. Among them, for the electric drive method, a power source such as a servo motor can be directly used to drive the stirring unit in the supernatant stirring mechanism 123 to stir the liquid in the supernatant accommodating space 100 so as to disperse or mix the sediment, so that the sediment does not remain on the inner wall of the supernatant accommodating space 100. For the manual drive method, a rotating rod and a gear transmission mechanism can be used to cooperate with the stirring member in the supernatant accommodating space 100 to stir the supernatant and the sediment. The specific transmission method is a well-known technology and will not be elaborated here. The present disclosure specifically selects the electric drive method to increase the numerical control operation and convenience of the overall equipment.

[0035] In a specific usage scenario, the mash feed pipeline 2 is inserted from the top right side of the tank body 1 to a position 1 meter away from the bottom on the side of the concentrated liquid area 11 of the tank body 1 to convey the mash, so that the liquid level of the mash gradually rises at the bottom of the concentrated liquid area 11 until it exceeds the top surface of the supernatant area housing 121, and most of the sediment will sink. At this time, the supernatant input mechanism 122 is in the closed state, so that the concentrated liquid area 11 and the supernatant area 12 are sealed and separated, and the mash in the concentrated liquid area 11 will not enter the supernatant area 11. When the supernatant input mechanism 122 is in the open state, the supernatant and a small amount of sediment enter the supernatant area 12, that is, into the supernatant accommodating space 100 of the supernatant area housing 121. During the use process, the sediment that enters slowly deposits at the bottom of the supernatant side. The liquid level of the supernatant area 12 is detected by the remote liquid level transmitter 400 on the supernatant side. Under normal circumstances, the supernatant is precipitated again and then flows back to the previous process section through the liquid outlet pipeline 120 for reuse. When the sediment on the supernatant side of the mash tank has been deposited for a certain period of time, the supernatant input mechanism 122 is closed to isolate the supernatant area 12 from the concentrated liquid area 11 again, and the supernatant stirring mechanism 123 is opened to mix and stir the supernatant and the sediment, so that the supernatant and the sediment in the supernatant area 12 are stirred and mixed. The bottom supernatant area sewage pipeline 124 is opened, and the stirred mixture of the supernatant and the sediment flows out through the pipeline and is sent to the sewage process section to complete the on-line cleaning.

[0036] In some embodiments, the supernatant stirring mechanism 123 includes a plurality of stirring members, and the stirring members are arranged at intervals along the extending direction of the supernatant accommodating space 100.

[0037] In this embodiment, as Figure 1As shown in the figure, a plurality of stirring members are arranged at intervals along the extending direction of the clear liquid accommodating space 100 to ensure the stirring ability of the clear liquid stirring mechanism 123 for the clear liquid and the sediment, and improve the cleaning effect. Further, the stirring member includes a driving motor 1231, a speed reducer 1232, and a stirrer 1233. The stirrer 1233 is connected to the driving motor 1231 through the speed reducer 1232. The stirrer 1233 is used to stir the clear mash liquid, and the driving motor 1231 is used to provide the acting force for the stirrer 1233 to stir the clear mash liquid. Specifically, the stirrer 1233 of the present disclosure can be selected as a propeller-type stirrer, which is composed of 2 to 3 propeller blades. The working speed is relatively high, and the circumferential speed of the outer edge of the blade is generally 5 to 15 m / s. The propeller-type stirrer mainly causes axial liquid flow and generates a large circulation volume. The rotating shaft of the propeller-type stirrer can also be inserted horizontally or obliquely into the clear liquid accommodating space 100. At this time, the circulation loop of the liquid flow is asymmetric, which can increase turbulence and prevent the liquid surface from sagging. Or a turbine-type stirrer, which is composed of 2 to 4 straight or curved blades installed on a horizontal disc. The ratio of the outer diameter, width, and height of the blade is generally 20:5:4, and the circumferential speed is generally 3 to 8 m / s. The turbine causes highly turbulent radial flow when rotating. Or a paddle-type stirrer, specifically, a flat paddle-type and an inclined paddle-type can be selected. The flat paddle-type stirrer is composed of two straight paddle blades. The ratio of the blade diameter to the height is 4 to 10, and the circumferential speed is 1.5 to 3 m / s. The radial liquid flow velocity generated is relatively small. The two blades of the inclined paddle-type stirrer are reversely turned by 45° or 60°, thus generating axial liquid flow. The paddle-type stirrer has a simple structure, low use cost, and low failure rate.

[0038] In this embodiment, the speed reducer 1232 is an independent component composed of a gear drive, a worm drive, and a gear-worm drive enclosed in a rigid housing. It is commonly used as a speed reduction drive device between the prime mover and the working machine, and plays a role in matching the speed and transmitting torque between the driving motor 1231 and the stirrer 1233. The motor of the stirrer 1233 usually runs at a relatively high speed, while the stirring paddle needs to work at an appropriate speed to achieve an ideal stirring effect. The speed reducer can reduce the high speed of the motor to the speed required by the stirrer 1233. For example, it can reduce the speed of the driving motor 1231 of about 1400 revolutions per minute to dozens to hundreds of revolutions per minute of the stirring paddle to meet the process requirements of different material stirrings. Further, the stirring member is arranged on one side close to the bottom of the clear liquid accommodating space 100 to better stir the sediment at the bottom of the clear liquid area 11.

[0039] In some embodiments, it further includes a pressure relief pipeline 3. The pressure relief pipeline 3 includes a pipeline body 31, a first pneumatic valve 32, and a second pneumatic valve 33. One end of the pipeline body 31 communicates with the clear liquid accommodating space 100, and the opposite end is provided with an exhaust interface and an intake interface. The first pneumatic valve 32 is connected to the exhaust interface, and the second pneumatic valve 33 is connected to the intake interface.

[0040] In this embodiment, the pressure relief and charging pipeline 3 of the present disclosure is used when the clear liquid stirring mechanism 123 operates. When the clear liquid stirring mechanism 123 operates, a certain pressure will be generated in the clear liquid area housing 121. It is necessary to open the first pneumatic valve 32 so that the pressure inside the clear liquid area housing 121 can be discharged. After the stirring is completed, the first pneumatic valve 32 is closed and the second pneumatic valve 33 is opened to input nitrogen into the clear liquid area housing 121, so that the pressure inside the clear liquid area housing 121 increases. When the pressure reaches a certain threshold, the sewage discharge pipeline 124 in the clear liquid area is opened to discharge sewage for treatment.

[0041] In some embodiments, a pressure sensor 4 is further included, and the pressure sensor 4 is disposed in the clear liquid accommodation space 100.

[0042] In this embodiment, specifically, when the pressure sensor 4 detects that the pressure reaches 400 kPa, the second pneumatic valve 33 is closed and the sewage discharge pipeline 124 in the clear liquid area is opened to ensure that the sewage in the clear liquid area housing 121 is discharged smoothly and the sewage will not be discharged too violently due to excessive pressure or the clear liquid area housing 121 is damaged. Further, when the remote liquid level transmitter 400 on the clear liquid side detects that the liquid level is lower than 20 mm, the sewage discharge pipeline 124 in the clear liquid area is closed, the first pneumatic valve 32 is opened, and the clear liquid input mechanism 122 is opened so that the clear liquid in the concentrated liquid area 11 flows into the clear liquid area 12 to start normal operation.

[0043] In some embodiments, the sewage discharge pipeline 124 in the clear liquid area includes a third pneumatic valve 1241 and a sewage discharge pipe body 1242 in the clear liquid area. One end of the sewage discharge pipe body 1242 in the clear liquid area is communicated with the clear liquid accommodation space 100, and the opposite end is communicated with the sewage discharge pipeline 110 in the concentrated liquid area. The third pneumatic valve 1241 is used to control the communication or isolation between the sewage discharge pipe body 1242 in the clear liquid area and the clear liquid accommodation space 100.

[0044] In this embodiment, one end of the sewage discharge pipe body 1242 in the clear liquid area is communicated with the clear liquid accommodation space 100, and the opposite end is communicated with the sewage discharge pipeline 110 in the concentrated liquid area, so that the sewage discharge pipeline 124 in the clear liquid area is combined with the sewage discharge pipeline 110 in the concentrated liquid area, integrating the sewage discharge pipelines of the whole equipment.

[0045] In some embodiments, a liquid level sensor in the clear liquid area is further included. The liquid level sensor in the clear liquid area includes a first liquid level sensor 200 and a second liquid level sensor 300. The first liquid level sensor 200 is disposed between the clear liquid stirring mechanism 123 and the liquid outlet pipeline 120, and the second liquid level sensor 300 is disposed between the clear liquid stirring mechanism 123 and the bottom of the clear liquid accommodation space 100.

[0046] In this embodiment, the first liquid level sensor 200 and the second liquid level sensor 300 can accurately detect the liquid level position in the clear liquid area 12, and control the opening and closing of each valve and component based on the liquid level information obtained by the first liquid level sensor 200 and the second liquid level sensor 300. Further, the liquid outlet pipe 120 is arranged on one side close to the top of the clear liquid accommodating space 100, and specifically can be arranged in the upper middle part of the clear liquid area housing 121 to reduce the sediment content in the outflowing clear mash liquid.

[0047] In the present disclosure, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. Terms such as "installed", "connected", "connected to", "fixed" and other terms should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0048] In the description of the present disclosure, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present disclosure.

[0049] In the description of this specification, the description of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0050] The above is only the preferred embodiment of the present disclosure and is not used to limit the present disclosure. For those skilled in the art, the present disclosure can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included within the protection scope of the present disclosure.

Claims

1. A mash tank for online cleaning of sediments on the clear liquid side, characterized in that, It includes a tank body and a mash feed pipeline. The interior of the tank body has a concentrated liquid area and a clear liquid area. The clear liquid area is provided with a liquid outlet pipeline, and the concentrated liquid area is provided with a sewage pipeline for the concentrated liquid area. The mash feed pipeline is used to convey mash to the concentrated liquid area. Among them, the clear liquid area includes a clear liquid area housing, a clear liquid input mechanism, and a clear liquid stirring mechanism. The interior of the clear liquid area housing has a clear liquid accommodation space. The bottom of the clear liquid accommodation space is provided with a sewage pipeline for the clear liquid area. The clear liquid input mechanism is used to connect or isolate the clear liquid accommodation space from the concentrated liquid area. The clear liquid stirring mechanism is used to stir the clear mash liquid in the clear liquid accommodation space.

2. The mash tank for online cleaning of the supernatant-side sediment according to claim 1, characterized in that, The clear liquid stirring mechanism includes a plurality of stirring members, and the stirring members are arranged at intervals along the extending direction of the clear liquid accommodation space.

3. The mash tank for online cleaning of the supernatant side deposits according to claim 2, characterized in that, The stirring member includes a driving motor, a speed reducer, and a stirrer. The stirrer is connected to the driving motor through the speed reducer. The stirrer is used to stir the clear mash liquid, and the driving motor is used to provide the force for the stirrer to stir the clear mash liquid.

4. The mash tank for online cleaning of the supernatant side deposits according to claim 2 or 3, characterized in that, The stirring member is arranged on one side close to the bottom of the clear liquid accommodation space.

5. The mash tank for online cleaning of sediment on the clear liquid side according to claim 1, characterized in that, It further includes a pressure relief pipeline, which includes a pipeline body, a first pneumatic valve, and a second pneumatic valve. One end of the pipeline body is connected to the clear liquid accommodation space, and the opposite end is provided with an exhaust interface and an air inlet interface. The first pneumatic valve is connected to the exhaust interface, and the second pneumatic valve is connected to the air inlet interface.

6. The mash tank for online cleaning of sediment on the clear liquid side according to claim 1, characterized in that, It further includes a pressure sensor, which is arranged in the clear liquid accommodation space.

7. The mash tank for online cleaning of sediment on the clear liquid side according to claim 1, characterized in that, The sewage pipeline for the clear liquid area includes a third pneumatic valve and a sewage pipeline body for the clear liquid area. One end of the sewage pipeline body for the clear liquid area is connected to the clear liquid accommodation space, and the opposite end is connected to the sewage pipeline for the concentrated liquid area. The third pneumatic valve is used to control the connection or isolation between the sewage pipeline body for the clear liquid area and the clear liquid accommodation space.

8. The mash tank for online cleaning of the supernatant-side sediment according to claim 1, characterized in that, The clear liquid input mechanism includes a driving member and an opening and closing valve. The opening and closing valve is arranged at the top of the clear liquid area housing, and the driving member is used to provide the force for the opening and closing valve to open or close.

9. The mash tank for online cleaning of the supernatant side sediment according to claim 1, characterized in that, It further includes a liquid level sensor for the clear liquid area, which includes a first liquid level sensor and a second liquid level sensor. The first liquid level sensor is arranged between the clear liquid stirring mechanism and the liquid outlet pipeline, and the second liquid level sensor is arranged between the clear liquid stirring mechanism and the bottom of the clear liquid accommodation space.

10. The mash tank for online cleaning of sediment on the clear liquid side according to claim 1, characterized in that, The liquid outlet pipeline is arranged on one side close to the top of the clear liquid accommodation space.

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