Pressure stabilization system for slurry for gypsum board and gypsum board production line

Abstract

A pressure stabilization system for a slurry for gypsum board and a gypsum board production line. The pressure stabilization system comprises: a slurry tank (100) configured to contain a slurry; and a pressure stabilization tank (200) provided with an overflow port (210), a liquid injection port (220) and a liquid discharge port (230); a first liquid pumping device (300) connected to the slurry tank (100) and the liquid injection port (220) and configured to pump the slurry contained in the slurry tank (100) into the pressure stabilization tank (200); and a second liquid pumping device connected to the liquid discharge port (230) and configured to pump the slurry contained in the pressure stabilization tank (200) to a set position. The pumped liquid flow of the first liquid pumping device (300) is not less than that of the second liquid pumping device.

Description

Gypsum board slurry liquid pressure stabilization system and gypsum board production line

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on September 1, 2023, with application number 2023111269275 and invention name “A pressure stabilization system for gypsum board slurry liquid and a gypsum board production line”, the contents of which should be understood as incorporated into this application by reference. Technical Field

[0002] The present invention relates to, but is not limited to, the technical field of gypsum board production, and more specifically, to a gypsum board slurry liquid pressure stabilization system and a gypsum board production line. Background Art

[0003] During the production process of gypsum boards, the molding quality of the gypsum boards is not stable. How to ensure the molding quality of the gypsum boards in a long-term and stable manner is a technical problem that technicians in this field have been committed to solving.

[0004] Summary of the Invention

[0005] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0006] An embodiment of the present invention provides a pressure stabilization system for gypsum board slurry liquid, comprising: a slurry tank, configured to contain slurry liquid; a pressure stabilizing tank, provided with an overflow port, an injection port, and a discharge port; a first pumping device, connected to the slurry tank and the injection port, and configured to pump the slurry liquid contained in the slurry tank into the pressure stabilizing tank; and a second pumping device, connected to the discharge port, and configured to pump the slurry liquid contained in the pressure stabilizing tank to a set position; wherein the pumping flow rate of the first pumping device is not less than the pumping flow rate of the second pumping device.

[0007] An embodiment of the present invention further provides a gypsum board production line, comprising the pressure stabilization system for the gypsum board slurry liquid described in any of the above embodiments.

[0008] Still other aspects will become apparent upon reading and understanding the accompanying drawings and detailed description.

[0009] Summary of the Figures

[0010] FIG1 is a schematic cross-sectional view of the front structure of a pressure stabilization system according to some embodiments;

[0011] FIG2 is a schematic diagram of the structure of the pressure stabilization system shown in FIG1 from a top view.

[0012] Among them, the correspondence between the figure marks and component names in Figures 1 and 2 is: 100 slurry tank, 200 pressure regulating tank, 210 overflow port, 220 liquid injection port, 230 liquid discharge port, 300 first pumping device, 310 liquid pump, 320 liquid discharge pipe, 330 liquid inlet pipe, 410 cylindrical tank body, 420 partition wall, 500 agitator.

[0013] Details

[0014] The principles and features of the present application are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present application and are not used to limit the scope of the present application.

[0015] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other in any manner.

[0016] Analysis and research have found that during the gypsum board production batching process, some ingredients need to be added to the main slurry water in the slurry tank in a certain proportion to form a slurry liquid, and then the slurry liquid is pumped to the mixer through a liquid pump for mixing and molding. During this process, as the slurry liquid level in the slurry tank gradually decreases, the hydraulic pressure at the liquid inlet of the liquid pump will gradually decrease. When the slurry liquid in the slurry tank is reduced to a low liquid level, the main slurry water and ingredients need to be added to the slurry tank to quickly reach a high liquid level. At this time, the hydraulic pressure at the liquid inlet of the liquid pump will rise rapidly again. Since the hydraulic pressure at the liquid inlet of the liquid pump is constantly changing, this will cause the pressure of the slurry liquid entering the mixer to change dramatically, seriously affecting the stability of the mixer's discharge and causing unstable molding quality of the gypsum board.

[0017] An embodiment of the present invention provides a pressure stabilization system for gypsum board slurry liquid, as shown in Figures 1 and 2, including: a slurry tank 100, the slurry tank 100 is configured to contain slurry liquid; a pressure stabilizing tank 200, the pressure stabilizing tank 200 is provided with an overflow port 210, an injection port 220 and a discharge port 230; a first pumping device 300, the first pumping device 300 is connected to the slurry tank 100 and the injection port 220, and is configured to pump the slurry liquid contained in the slurry tank 100 into the pressure stabilizing tank 200; and a second pumping device, the second pumping device is connected to the discharge port 230, and is configured to pump the slurry liquid contained in the pressure stabilizing tank 200 to a set position (such as a mixer); wherein the pumping flow rate of the first pumping device 300 is not less than the pumping flow rate of the second pumping device.

[0018] The pressure stabilization system first turns on the first pumping device 300, and continuously pumps the slurry liquid contained in the slurry tank 100 into the pressure-stabilizing tank 200 through the first pumping device 300. After the slurry liquid in the pressure-stabilizing tank 200 overflows from the liquid flow outlet, the second pumping device is turned on, and the slurry liquid contained in the pressure-stabilizing tank 200 is pumped to a set position (such as a mixer) through the second pumping device. Since the pumping flow rate of the first pumping device 300 is not less than the pumping flow rate of the second pumping device, the amount of the slurry liquid in the pressure-stabilizing tank 200 will basically not change during the process of the second pumping device pumping the slurry liquid. In this way, the hydraulic pressure at the liquid inlet of the second pumping device will basically not change, and the corresponding hydraulic pressure at the liquid outlet of the second pumping device will basically not change. This solution can ensure the molding quality of the gypsum board for a long time and in a stable manner.

[0019] In some embodiments, the pumping flow rate of the first pumping device 300 is greater than the pumping flow rate of the second pumping device, ensuring that the slurry liquid in the surge tank 200 is always in an overflow state. Alternatively, the top of the surge tank 200 is penetrated to form an overflow port.

[0020] In some examples, as shown in FIG1 , the overflow port 210 and the liquid injection port 220 are located at the upper portion of the surge tank 200, with the overflow port 210 located above the liquid injection port 220 and the liquid discharge port 230 located at the lower portion of the surge tank 200. The liquid injection port 220 is located below the overflow port 210, so that the slurry liquid in the surge tank 200 has a smaller fluctuation.

[0021] In some examples, as shown in Figures 1 and 2, the volume of the slurry tank 100 is greater than the volume of the surge tank 200, so that the slurry liquid can be pumped from the slurry tank 100 to the surge tank 200 for a long time. The ratio of the volume of the slurry tank 100 to the volume of the surge tank 200 can be set to 2:1; or the ratio of the volume of the slurry tank 100 to the volume of the surge tank 200 can be set to 5:1; or the ratio of the volume of the slurry tank 100 to the volume of the surge tank 200 can be set to 8:1; or the ratio of the volume of the slurry tank 100 to the volume of the surge tank 200 can be set to 10:1, etc. All of the above can achieve the purpose of the present application, and their purpose does not deviate from the design concept of the present application, and will not be repeated here, and should all fall within the scope of protection of the present application.

[0022] In some examples, as shown in FIG. 1 , the overflow port 210 is connected to the slurry tank 100 , so that the slurry liquid flowing out of the overflow port 210 directly flows back into the slurry tank 100 .

[0023] In some examples, as shown in Figure 1, the liquid inlet direction of the liquid injection port 220 is horizontal or tilted upward, and the pumping flow rate of the first pumping device 300 when pumping liquid should not be too large to avoid the slurry liquid injected from the liquid injection port 220 from having a large impact on the slurry liquid in the lower part of the pressure-regulating tank 200, thereby causing hydraulic instability at the discharge port 230.

[0024] In some examples, as shown in Figures 1 and 2, the first liquid pumping device 300 includes a liquid pump 310 and a drainage pipe 320. The slurry tank 100, the liquid pump 310, the drainage pipe 320, and the liquid injection port 220 are connected in sequence, and the inner diameter of the drainage pipe 320 and the inner diameter of the liquid injection port 220 are both matched with the pumping flow rate of the liquid pump 310 to prevent excessive water pressure at the liquid injection port 220 from causing a large impact on the slurry liquid in the surge tank 200. Alternatively, the liquid pump 310 is connected to the slurry tank 100 via a feed pipe 330, and the inner diameter of the feed pipe 330 is also set to match the pumping flow rate of the liquid pump 310.

[0025] It can be that the pressure-surge tank 200 is located inside the slurry tank 100, such as the pressure-surge tank 200 is located at the center of the slurry tank 100 or the pressure-surge tank 200 is deviated from the center of the slurry tank 100; or it can be that the pressure-surge tank 200 is located outside the slurry tank 100; all of the above can achieve the purpose of this application, and its purpose does not deviate from the design concept of this application, and will not be repeated here, and should all fall within the scope of protection of this application.

[0026] In some embodiments, as shown in Figures 1 and 2, the gypsum board slurry liquid pressure stabilization system further includes: a cylindrical tank body 410; and a partition wall 420, wherein the partition wall 420 is located within the cylindrical tank body 410 and, together with the cylindrical tank body 410, forms a slurry tank 100 and a pressure stabilization tank 200. The small tank body formed by the partition wall 420 and the cylindrical tank body 410 is the pressure stabilization tank 200, and the large tank body formed by the partition wall 420 and the cylindrical tank body 410 is the slurry tank 100.

[0027] In some embodiments, the partition wall 420 includes a connected arcuate side wall, an arcuate top wall (such as a crescent-shaped top wall) and an arcuate bottom wall (such as a crescent-shaped bottom wall). The arcuate side wall, the arcuate top wall and the arcuate bottom wall are on the same side of the axis of the cylindrical tank body 410. The arcuate top wall and the arcuate bottom wall are located on the side of the arcuate side wall that is away from the axis of the cylindrical tank body 410 and are both connected to the peripheral wall of the cylindrical tank body 410. In the circumference of the slurry tank 100, the two ends of the arcuate side wall are connected to the peripheral wall of the slurry tank 100. This scheme has a simple structure and is easy to manufacture.

[0028] As shown in Figures 1 and 2, the concave side of the curved sidewall faces the axis of the cylindrical tank body 410. In the circumferential direction of the slurry tank 100, the two ends of the curved sidewall are smoothly connected to the peripheral wall of the slurry tank 100. An agitator 500 is provided at the axis of the cylindrical tank body 410. In the radial direction of the cylindrical tank body 310, the curved sidewall is located on one side of the agitator 500. The agitator 500 stirs the slurry liquid to prevent the solute in the slurry liquid from precipitating. The two ends of the curved sidewall are smoothly connected to the peripheral wall of the slurry tank 100, so that the slurry liquid stirred by the agitator 500 will not violently impact the curved sidewall and cause the cylindrical tank body 410 to shake significantly, and the resistance to the agitator 500 will not increase much.

[0029] An embodiment of the present invention further provides a gypsum board production line (not shown in the figure), comprising the pressure stabilization system for the gypsum board slurry liquid described in any of the above embodiments.

[0030] This gypsum board production line has all the advantages of the gypsum board slurry liquid pressure stabilization system provided by any of the above embodiments, which will not be described in detail here.

[0031] To sum up, the pressure stabilization system proposed in the embodiment of the present invention first turns on the first pumping device, and pumps the slurry liquid contained in the slurry tank into the pressure-stabilizing tank through the first pumping device. After the slurry liquid in the pressure-stabilizing tank overflows outward from the liquid flow outlet, the second pumping device is turned on again, and the slurry liquid contained in the pressure-stabilizing tank is pumped to the set position through the second pumping device. Since the pumping flow rate of the first pumping device is not less than the pumping flow rate of the second pumping device, the amount of slurry liquid in the pressure-stabilizing tank will basically not change during the process of the second pumping device pumping the slurry liquid. In this way, the hydraulic pressure at the liquid inlet of the second pumping device will basically not change, and the corresponding hydraulic pressure at the liquid outlet of the second pumping device will basically not change. This solution can ensure the molding quality of the gypsum board for a long time and stably.

[0032] In the description of this application, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "relative", "four corners", "periphery", ""mouth"-shaped structure", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the structure referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0033] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, the terms "connection", "direct connection", "indirect connection", "fixed connection", "installation", and "assembly" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection. The terms "installation", "connection", and "fixed connection" can refer to direct connection, indirect connection through an intermediate medium, or internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] It should be noted that the above-described embodiments or implementations are merely illustrative and not restrictive. Therefore, the present disclosure is not limited to what is specifically shown and described herein. Various modifications, substitutions, or omissions may be made to the forms and details of the implementations without departing from the scope of the present disclosure.

Claims

1. A pressure stabilization system for gypsum board slurry liquid, comprising: A slurry tank, configured to contain slurry liquid; The pressure stabilizing tank is provided with an overflow port, a liquid injection port and a liquid discharge port; A first pumping device, connected to the slurry tank and the liquid injection port, and configured to pump the slurry liquid contained in the slurry tank into the pressure-stabilizing tank; and A second pumping device, connected to the liquid discharge port and configured to pump the slurry liquid contained in the pressure stabilizing tank to a set position; Wherein, the pumping flow rate of the first pumping device is not less than the pumping flow rate of the second pumping device.

2. The pressure stabilization system for gypsum board slurry liquid according to claim 1, wherein: The volume of the slurry tank is greater than the volume of the surge tank.

3. The pressure stabilization system for gypsum board slurry liquid according to claim 1, wherein: The overflow port is communicated with the slurry tank.

4. The pressure stabilization system for gypsum board slurry liquid according to claim 1, wherein: The liquid inlet direction of the liquid injection port is horizontal or inclined upward.

5. The pressure stabilization system for gypsum board slurry liquid according to claim 1, wherein: The overflow port and the injection port are located at the upper part of the pressure-stabilizing tank, the discharge port is located at the lower part of the pressure-stabilizing tank, the first pumping device includes a liquid pump and a discharge pipe, the slurry tank, the liquid pump, the discharge pipe and the injection port are connected in sequence, and the inner diameter of the discharge pipe and the inner diameter of the injection port are matched with the pumping flow rate of the liquid pump.

6. The pressure stabilization system for gypsum board slurry liquid according to claim 1, wherein: The pressure stabilizing tank is located in the slurry tank.

7. The pressure stabilization system for gypsum board slurry liquid according to claim 1, wherein: The pressure stabilizing tank is located outside the slurry tank.

8. The pressure stabilization system for gypsum board slurry liquid according to claim 1, further comprising: Cylindrical tank; and The partition wall is located in the cylindrical tank body and together with the cylindrical tank body forms the slurry tank and the pressure-stabilizing tank.

9. The pressure stabilization system for gypsum board slurry liquid according to claim 8, wherein: The partition wall includes a connected arcuate side wall, an arcuate top wall and an arcuate bottom wall, the arcuate side wall, the arcuate top wall and the arcuate bottom wall are on the same side of the axis of the cylindrical tank body, the arcuate top wall and the arcuate bottom wall are located on the side of the arcuate side wall that is away from the axis of the cylindrical tank body, and are both connected to the circumferential wall of the cylindrical tank body, and in the circumferential direction of the slurry tank, both ends of the arcuate side wall are connected to the circumferential wall of the slurry tank.

10. The pressure stabilization system for gypsum board slurry liquid according to claim 9, wherein: The concave side of the arc-shaped side wall faces the axis of the cylindrical tank body, and in the circumferential direction of the slurry tank, both ends of the arc-shaped side wall are smoothly transitionally connected to the circumferential wall of the slurry tank.

11. The pressure stabilization system for gypsum board slurry liquid according to claim 8, wherein: An agitator is arranged at the axis of the cylindrical tank body, and in the radial direction of the cylindrical tank body, the partition wall is located at one side of the agitator.

12. A gypsum board production line, comprising the pressure stabilization system for gypsum board slurry liquid according to any one of claims 1 to 11.

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