Control system for stably conveying slurry

Abstract

The utility model relates to a control system for stably conveying slurry, which comprises a raw material tank, a material conveying pipe, a pressure stabilizing tank and a mass flow meter, the raw material tank is used for storing slurry, the material conveying pipe is connected with the bottom of the raw material tank, the material conveying pipe is used for conveying the slurry, the pressure stabilizing tank is arranged on the material conveying pipe and used for stabilizing the supply of the slurry, and the mass flow meter is arranged on the material conveying pipe. And the mass flow meter is mounted on the material conveying pipe, is positioned at the rear end of the pressure stabilizing tank and is used for metering the slurry in the material conveying pipe. The pressure stabilizing tank is arranged on the material conveying pipe, so that the metering error caused by pressure fluctuation, medium flow velocity, gas-liquid two phases, fluctuation of clockwise flow and overlarge front-back pressure loss in the slurry conveying process can be greatly solved, and the flowmeter can meet the product matching precision under any working condition.

Description

Technical Field

[0001] The utility model relates to the field of precision control of slurry transportation, and particularly relates to a control system for stably transporting slurry. Background Art

[0002] The precision of slurry ratio is very important for ensuring product quality. In the existing process of making slurry ratio, especially pipeline pressure, the pulse of the diaphragm pump, and the overall concentration of the slurry will all affect the accuracy of the flowmeter, resulting in difficulty in controlling the proportion accuracy of the formula during the production ratio process, leading to a decline in product quality, time-consuming and laborious, and large errors may cause waste of raw materials. Summary of the Utility Model

[0003] In view of the above problems, the present application provides a control system for stably transporting slurry, which is used to solve the technical problem of difficult control of the proportion accuracy of the formula.

[0004] To achieve the above object, in a first aspect, the present application provides a control system for stably transporting slurry, including a raw material tank, a feeding pipe, a pressure stabilizing tank, and a mass flowmeter. The raw material tank is used to store slurry, the feeding pipe is connected to the bottom of the raw material tank, the feeding pipe is used to transport the slurry, the pressure stabilizing tank is installed on the feeding pipe, the pressure stabilizing tank is used to stabilize the supply of the slurry, the mass flowmeter is installed on the feeding pipe, the mass flowmeter is located at the rear end of the pressure stabilizing tank, and the mass flowmeter is used to measure the slurry in the feeding pipe.

[0005] As an implementation manner of the utility model, a pulsation damper is further provided on the feeding pipe, and the pulsation damper is located at the front end of the pressure stabilizing tank.

[0006] As an implementation manner of the utility model, an electric diaphragm pump is further provided on the feeding pipe, and the electric diaphragm pump is located at the front end of the pulsation damper.

[0007] As an implementation manner of the utility model, a first pressure sensor is further provided on the feeding pipe, and the first pressure sensor is located between the electric diaphragm pump and the pulsation damper.

[0008] As an implementation manner of the utility model, a first manual ball valve is further provided on the feeding pipe, and the first manual ball valve is located between the first pressure sensor and the pulsation damper.

[0009] As an implementation manner of the utility model, a second pressure sensor is provided on the outer side of the raw material tank, and the second pressure sensor is used to detect the pressure of the raw material tank.

[0010] As an embodiment of the present utility model, a second manual ball valve and a third manual ball valve are further provided on the material conveying pipe. The second manual ball valve is located at the bottom of the raw material tank, and the third manual ball valve is located at the front end of the electric diaphragm pump.

[0011] As an embodiment of the present utility model, a first pneumatic ball valve is further provided on the material conveying pipe. The first pneumatic ball valve is located between the second manual ball valve and the third manual ball valve.

[0012] As an embodiment of the present utility model, a first flexible connection, a second flexible connection and a third flexible connection are further provided on the material conveying pipe. The second flexible connection is located between the first pneumatic ball valve and the third manual ball valve. The third flexible connection is located at the front end of the electric diaphragm pump, and the fourth flexible connection is located at the rear end of the electric diaphragm pump.

[0013] As an embodiment of the present utility model, a second pneumatic ball valve, a fourth manual ball valve and a fourth flexible connection are successively provided at the bottom of the mass flowmeter.

[0014] Different from the prior art, the technical solution of the present application sets a pressure stabilizing tank on the material conveying pipe, which can greatly solve the problems of pressure fluctuation, medium flow velocity, gas-liquid two-phase, instantaneous flow rate changing suddenly, and excessive front and rear pressure loss during the conveying process of the slurry, resulting in metering errors, so that the flowmeter can meet the product ratio accuracy under any working conditions.

[0015] The above relevant descriptions of the utility model content are only an overview of the technical solution of the present application. In order to enable those of ordinary skill in the art to more clearly understand the technical solution of the present application, and then can be implemented according to the content recorded in the description and the drawings, and in order to make the above objects, other objects, features and advantages of the present application more easily understood, the following is described in conjunction with the specific embodiments of the present application and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings are only used to illustrate the principles, implementation methods, applications, features and effects of the specific embodiments of the present application and other related contents, and should not be considered as a limitation to the present application.

[0017] In the drawings of the specification:

[0018] Figure 1 is a schematic structural diagram of a control system for stably conveying slurry of the present application Figure 1 ;

[0019] Figure 2 is a schematic structural diagram of a control system for stably conveying slurry of the present application Figure 2 ;

[0020] Figure 3Schematic diagram of the raw material tank of a control system for stable slurry transportation in this application;

[0021] Figure 4 Schematic structure of the material conveying pipe of a control system for stable slurry transportation in this application Figure 1 ;

[0022] Figure 5 Schematic structure of the material conveying pipe of a control system for stable slurry transportation in this application Figure 2 。

[0023] The descriptions of the reference numerals involved in the above-mentioned drawings are as follows:

[0024] 1. Raw material tank, 101. Second pressure sensor,

[0025] 2. Material conveying pipe,

[0026] 3. Pressure stabilizing tank,

[0027] 4. Mass flowmeter,

[0028] 5. Pulsation damper,

[0029] 6. Electric diaphragm pump,

[0030] 7. First pressure sensor,

[0031] 8. First manual ball valve,

[0032] 9. Second manual ball valve,

[0033] 10. Third manual ball valve,

[0034] 11. First pneumatic ball valve,

[0035] 12. First flexible connection,

[0036] 13. Second flexible connection,

[0037] 14. Third flexible connection,

[0038] 15. Second pneumatic ball valve,

[0039] 16. Fourth manual ball valve,

[0040] 17. Fourth flexible connection. Detailed implementation manners

[0041] To illustrate in detail the possible application scenarios, technical principles, specific implementable solutions, achievable purposes and effects, etc. of this application, the following is a detailed description in conjunction with the specific examples listed and the accompanying drawings. The examples described herein are only used to more clearly illustrate the technical solutions of this application, so they are only examples and cannot be used to limit the protection scope of this application.

[0042] As used herein, the mention of "embodiment" means that the specific features, structures or characteristics described in connection with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing at various positions in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0043] Unless otherwise defined, the meanings of the technical terms used herein are the same as those commonly understood by those skilled in the technical field to which the present application pertains; the use of the relevant terms herein is only for describing specific embodiments and is not intended to limit the present application.

[0044] In the description of the present application, the phrase "and / or" is an expression used to describe the logical relationship between objects, indicating that there can be three relationships, for example, X and / or Y, which means: the existence of X, the existence of Y, and the simultaneous existence of X and Y. In addition, the character " / " herein generally represents an "or" logical relationship between the associated objects before and after.

[0045] In the present application, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantitative, primary-secondary or sequential relationship between these entities or operations.

[0046] Without further limitation, in the present application, the use of "including", "comprising", "having" or other similar expressions in a statement is intended to cover non-exclusive inclusion. These expressions do not exclude the possibility that there may be additional elements in the process, method or product including the recited elements, such that a process, method or product including a series of elements may include not only those defined elements, but also other elements not expressly listed, or elements inherent to such process, method or product.

[0047] Similar to the understanding in the "Examination Guidelines", in the present application, expressions such as "greater than", "less than", "exceeding" are understood not to include the recited number; expressions such as "above", "below", "within" are understood to include the recited number. In addition, in the description of the embodiments of the present application, the meaning of "a plurality of" is two or more (including two), and similar expressions related to "many" are understood in the same way, such as "multiple groups", "multiple times", etc., unless otherwise specifically defined.

[0048] In the description of the embodiments of the present application, the spatially related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "perpendicular", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. It is only for the convenience of describing the specific embodiments of the present application or facilitating the understanding of the readers, rather than indicating or implying that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present application.

[0049] Unless otherwise clearly specified or limited, in the description of the embodiments of the present application, the terms such as "installed", "connected", "linked", "fixed", "set", etc. should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two components or the interaction relationship between two components. For those skilled in the art to which the present application pertains, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0050] According to some embodiments of the present application, please refer to Figures 1 to 5 , this embodiment relates to a control system for stably transporting slurry, including a raw material tank 1, a feeding pipe 2, a pressure stabilizing tank 3, and a mass flowmeter 4. The raw material tank 1 is used to store slurry. The feeding pipe 2 is connected to the bottom of the raw material tank 1 and is used to transport slurry. The pressure stabilizing tank 3 is installed on the feeding pipe 2 and is used to stabilize the supply of slurry. The mass flowmeter 4 is installed on the feeding pipe 2, is located at the rear end of the pressure stabilizing tank 3, and is used to measure the slurry in the feeding pipe 2.

[0051] During use, the slurry in the raw material tank 1 enters the feeding pipe 2 from the bottom discharge port. The pressure stabilizing tank 3 maintains a stable supply of slurry. The slurry passes through the pressure stabilizing tank 3 and is continuously transported to the mass flowmeter 4, and the mass flowmeter 4 then measures the slurry in the feeding pipe 2.

[0052] According to some embodiments of the present application, optionally, a pulsation damper 5 is further provided on the feeding pipe 2, and the pulsation damper 5 is located at the front end of the pressure stabilizing tank 3.

[0053] Thus, before use, the upper chamber of the pulsation damper will be filled with gas at a certain pressure to prepare for subsequent pulsation absorption; when the fluid enters the damper, due to the compressibility of the gas and the instantaneous absorption of the pulse, the system can obtain a stable liquid flow rate and pressure; when the flow rate has a sinusoidal curve characteristic, the volume of the air chamber becomes smaller at the peak, absorbing the excess flow, and the volume of the air chamber becomes larger during the trough, releasing the stored liquid, thereby achieving the effect of smoothing the pulsation.

[0054] According to some embodiments of the present application, optionally, an electric diaphragm pump 6 is further provided on the feed pipe 2, and the electric diaphragm pump 6 is located at the front end of the pulsation damper 5.

[0055] Thus, the electric diaphragm pump 6 pushes the slurry to move in the feed pipe 2 to ensure the smooth transportation of the slurry in the feed pipe 2.

[0056] According to some embodiments of the present application, optionally, a first pressure sensor 7 is further provided on the feed pipe 2, and the first pressure sensor 7 is located between the electric diaphragm pump 6 and the pulsation damper 5.

[0057] Thus, it is convenient to detect the hydraulic pressure of the slurry in the feed pipe 2 through the first sensor.

[0058] According to some embodiments of the present application, optionally, a first manual ball valve 8 is further provided on the feed pipe 2, and the first manual ball valve 8 is located between the first pressure sensor 7 and the pulsation damper 5.

[0059] Thus, it is convenient for the slurry to pass through the detection of the first sensor, and the operator can manually open or close the first manual ball valve 8 according to the detected value.

[0060] According to some embodiments of the present application, optionally, a second pressure sensor 101 is provided outside the raw material tank 1, and the second pressure sensor 101 is used to detect the pressure of the raw material tank 1.

[0061] Thus, it is convenient to detect the pressure of the raw material tank 1 through the second pressure sensor 101.

[0062] According to some embodiments of the present application, optionally, a second manual ball valve 9 and a third manual ball valve 10 are further provided on the feed pipe 2, the second manual ball valve 9 is located at the bottom of the raw material tank 1, and the third manual ball valve 10 is located at the front end of the electric diaphragm pump 6.

[0063] According to some embodiments of the present application, optionally, a first pneumatic ball valve 11 is further provided on the feed pipe 2, and the first pneumatic ball valve 11 is located between the second manual ball valve 9 and the third manual ball valve 10.

[0064] Thus, it is convenient to advance or interrupt the slurry transportation in the feed pipe 2 by opening or closing the second manual ball valve 9, the third manual ball valve 10, and the first pneumatic ball valve 11.

[0065] According to some embodiments of the present application, optionally, a first flexible connection 12, a second flexible connection 13, and a third flexible connection 14 are further provided on the material conveying pipe 2. The second flexible connection 13 is located between the first pneumatic ball valve 11 and the third manual ball valve 10 of the manual ball valve. The third flexible connection 14 is located at the front end of the electric diaphragm pump 6, and the fourth flexible connection 17 is located at the rear end of the electric diaphragm pump 6.

[0066] In this way, the flexible connection can provide a certain protective effect. The flexible material can absorb and slow down the impact force, reducing the risk of damage to the conveying pipe due to external impact or unexpected load increase.

[0067] According to some embodiments of the present application, optionally, a second pneumatic ball valve 15, a fourth manual ball valve 16, and a fourth flexible connection 17 are successively provided at the bottom of the mass flowmeter 4.

[0068] In this way, it is convenient to control the smooth output of the slurry from the material conveying pipe 2.

[0069] Different from the prior art, the technical solution of the present application sets a pressure stabilizing tank 3 on the material conveying pipe 2, which can greatly solve the problems of pressure fluctuation, medium flow velocity, gas-liquid two-phase, instantaneous flow rate being large or small, and excessive front and rear pressure loss during the conveying process of the slurry, resulting in measurement errors, so that the flowmeter can meet the product ratio accuracy under any working conditions.

[0070] During use, first open the first manual ball valve 8, the second manual ball valve 9, and the third manual ball valve 10, confirm that the first manual ball valve 8, the second manual ball valve 9, and the third manual ball valve 10 are fully opened, notify the central control room, and then open the first pneumatic valve step by step. After confirming that it is fully opened, start the electric diaphragm pump 6. Ensure that the pressure of the entire pipeline is 0.1 Mpa, adjust the pressure of the damping device in the middle so that the pressure is half of the pressure of the material conveying pipe 2, start the electric diaphragm pump 6 for 3 seconds, and then open the raw material tank 1, the second pneumatic ball valve 15, and the fourth manual ball valve 16 to ensure that there is no gas-liquid two-phase in the slurry pipeline. In the entire process pipeline, the pressure stabilizing tank 3 plays the role of stable feeding, increasing the slurry flow rate, maintaining the pressure stability of the pipeline system, and ensuring the accurate measurement of the slurry passing through the flowmeter.

[0071] Those skilled in the art can understand that although some embodiments herein include certain features included in other embodiments rather than other features, the combination of the features of different embodiments means that it is within the scope of the present application and forms different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present application, and they should all be covered within the scope of the claims and the description of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A control system for stable slurry delivery, characterized in that: include: A raw material tank, wherein the raw material tank is used to store slurry; A feed pipe, the feed pipe is connected to the bottom of the raw material tank, and the feed pipe is used to transport the slurry; A pressure stabilizing tank, the pressure stabilizing tank being installed on the feed pipe and used for stabilizing the supply of the slurry; and A mass flow meter is installed on the feed pipe. The mass flow meter is located at the rear end of the pressure regulating tank. The mass flow meter is used to measure the slurry in the feed pipe.

2. A control system for stable slurry delivery according to claim 1, characterized in that: The conveying pipe is also provided with a pulsation damper, and the pulsation damper is located at the front end of the pressure stabilizing tank.

3. A control system for stable slurry delivery according to claim 2, characterized in that: The feed pipe is also provided with an electric diaphragm pump, and the electric diaphragm pump is located at the front end of the pulsation damper.

4. A control system for stable slurry delivery according to claim 3, characterized in that: The feed pipe is also provided with a first pressure sensor, and the first pressure sensor is located between the electric diaphragm pump and the pulsation damper.

5. A control system for stable slurry delivery according to claim 4, characterized in that: The material conveying pipe is also provided with a first manual ball valve, and the first manual ball valve is located between the first pressure sensor and the pulsation damper.

6. A control system for stable slurry delivery according to claim 1, characterized in that: A second pressure sensor is disposed on the outer side of the raw material tank, and the second pressure sensor is used to detect the pressure of the raw material tank.

7. A control system for stable slurry delivery according to claim 3, characterized in that: The feed pipe is also provided with a second manual ball valve and a third manual ball valve. The second manual ball valve is located at the bottom of the raw material tank, and the third manual ball valve is located at the front end of the electric diaphragm pump.

8. A control system for stable slurry delivery according to claim 7, characterized in that: The material conveying pipe is also provided with a first pneumatic ball valve, and the first pneumatic ball valve is located between the second manual ball valve and the third manual ball valve.

9. A control system for stable slurry delivery according to claim 8, characterized in that: The feed pipe is also provided with a first soft connection, a second soft connection and a third soft connection. The first soft connection is located between the first pneumatic ball valve and the third manual ball valve, the second soft connection is located at the front end of the electric diaphragm pump, and the third soft connection is located at the rear end of the electric diaphragm pump.

10. A control system for stable slurry delivery according to claim 1, characterized in that: A second pneumatic ball valve, a fourth manual ball valve and a fourth soft connection are sequentially arranged at the bottom of the mass flow meter.

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