Solution preparation system

Abstract

The invention discloses a solution preparation system. The solution preparation system comprises a preparation tank, a powder input device, a spraying device and an air blowing device, wherein the powder input device is used for inputting powder into the preparation tank; the spraying device comprises a spraying pipe row located in the preparation tank and a water supply pipe connected with the spraying pipe row, and the spraying pipe row is provided with a plurality of spraying holes; the air blowing device comprises an air blowing pipe row located in the preparation tank and an air supply pipe connected with the air blowing pipe row, and the air blowing pipe row is provided with a plurality of air spraying holes. According to the scheme provided by the invention, the preparation efficiency of the solution can be greatly improved, and the problems of too slow dissolution speed, unstable concentration and the like caused by floating on the surface of the liquid due to small density of the solid water reducing agent are effectively solved.

Description

Technical Field

[0001] The present invention relates to the field of building materials technology, and in particular to a solution preparation system. Background Art

[0002] Gypsum board is made of building gypsum as the main raw material, with appropriate amount of additives, fiber, water reducing agent and other auxiliary materials added, then mixed with water and stirred into gypsum slurry by vertical mixer, and processed into board with special board paper as the surface. In the production process of gypsum board, in order to meet the production process requirements, under the condition of unchanged amount of building gypsum, adding a certain amount of water reducing agent can reduce the amount of slurry mixing water, thereby reducing the evaporation of the board and improving the strength of the board. There are two types of water reducing agents: solid water reducing agent and liquid water reducing agent. The use cost of liquid water reducing agent in the market is higher than that of solid water reducing agent, but the water reducing effect of solid water reducing agent can be greatly improved after it is prepared into solution before use.

[0003] Since solid water reducers are mostly added directly into a preparation tank with a mixer in ton bags, and since the density of the water reducer is very small, solid materials often float on the liquid surface during the preparation of the water reducer solution, and the dissolution rate is too slow, resulting in frequent accumulation of materials and caking on the stirring paddle, requiring frequent maintenance, and generating dust, polluting the environment. In addition, manual valves are often used for control when adding water, resulting in unstable concentration. Summary of the invention

[0004] The embodiment of the present application provides a solution preparation system to solve the problems of slow dissolution rate and unstable solution concentration caused by solid water reducer floating on the liquid surface when preparing water reducer solution.

[0005] The embodiment of the present application provides a solution preparation system, including: a preparation tank, a powder input device, a spray device and an aeration device; wherein:

[0006] The powder material input device is configured to input powder material into the preparation tank;

[0007] The spray device comprises a spray pipe row located in the preparation tank and a water supply pipe connected to the spray pipe row, and the spray pipe row is provided with a plurality of spray holes;

[0008] The air blowing device comprises an air blowing pipe row located in the preparation tank and an air supply pipe connected to the air blowing pipe row, and the air blowing pipe row is provided with a plurality of air injection holes.

[0009] In one embodiment, the preparation tank is sealed;

[0010] The solution preparation system also includes a dust collecting device, which includes a first dust collecting pipe connected to the top opening of the preparation tank and a dust collector connected to the first dust collecting pipe, and the dust collector is configured to extract gas from the preparation tank to form a negative pressure in the preparation tank.

[0011] In one embodiment, the powder input device includes a weighing hopper for weighing the powder located at the powder inlet of the preparation tank.

[0012] In one embodiment, the powder input device further includes a tube chain conveyor for conveying powder to the weighing hopper and an upper hopper connected to the inlet of the tube chain conveyor.

[0013] In one embodiment, the upper hopper, the tube chain conveyor, the weighing hopper and the preparation tank form a sealed feeding channel.

[0014] In one embodiment, the dust collecting device further includes a second dust collecting pipe connected to an upper position of the upper hopper, and the second dust collecting pipe is configured to be connected to the first dust collecting pipe.

[0015] In one embodiment, the solution preparation system further comprises a lifting device for lifting a powder bag containing powder to the upper hopper.

[0016] In one embodiment, the spray pipe row is arranged in a cross shape; and / or the air blower pipe row is arranged in a cross shape.

[0017] In one embodiment, the air supply pipe is configured to be connected to an air supply device for providing compressed air.

[0018] In one embodiment, a flow meter and an electric control valve are provided on the water supply pipe;

[0019] The solution preparation system also includes a control device, which is configured to be connected to the flow meter, the electric control valve and the powder input device to control the electric control valve according to the measurement of the flow meter, and control the amount of powder input into the preparation tank by the powder input device.

[0020] The technical solution provided by the embodiment of the present application is to set a spray pipe row and an air blast pipe row in the preparation tank. When the powder input device inputs the powder into the preparation tank, the spray pipe row sprays water, so that the powder is fully contacted and mixed with the spray water during the falling process, and the air blast pipe row sprays gas, and the continuously sprayed gas stirs the mixture of water and powder to promote the uniform mixing of the material and water. The use of the solution preparation system provided by the present application to prepare gypsum slurry can greatly improve the preparation efficiency of the solution, and effectively solve the problems of the solid water reducer floating on the liquid surface due to its small density, resulting in too slow dissolution rate and unstable concentration.

[0021] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or be understood by implementing the present application. Other advantages of the present application can be realized and obtained by the schemes described in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide an understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0023] Figure 1 A schematic diagram of the structure of a solution preparation system according to an embodiment of the present application;

[0024] Figure 2 Schematic diagram of the connection of a control device of a solution preparation system according to one embodiment of the present application.

[0025] 1- preparation tank; 2- powder input device; 21- weighing bucket; 22- pipe chain conveyor; 23- upper hopper; 24- powder bag; 25- lifting device; 3- spraying device; 31- spraying pipe row; 32- water supply pipe; 33- flow meter; 34- electric control valve; 35- water supply device; 4- air blowing device; 41- air blowing pipe row; 42- air supply pipe; 43- control valve; 44- air supply device; 5- dust collecting device; 51- first dust collecting pipe; 52- second dust collecting pipe; 53- dust collector; 6- control device. DETAILED DESCRIPTION

[0026] The present application describes multiple embodiments, but the description is exemplary rather than restrictive, and it is obvious to those skilled in the art that there may be more embodiments and implementations within the scope of the embodiments described in the present application. Although many possible feature combinations are shown in the drawings and discussed in the specific embodiments, many other combinations of the disclosed features are also possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with any other feature or element in any other embodiment, or may replace any other feature or element in any other embodiment.

[0027] The present application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements disclosed in the present application may also be combined with any conventional features or elements to form a unique invention scheme. Any features or elements of any embodiment may also be combined with features or elements from other invention schemes to form another unique invention scheme. Therefore, it should be understood that any feature shown and / or discussed in the present application may be implemented individually or in any appropriate combination. Therefore, except for the limitations made according to the attached claims and their equivalents, the embodiments are not subject to other restrictions. In addition, various modifications and changes may be made within the scope of protection of the attached claims.

[0028] In addition, when describing representative embodiments, the specification may have presented the method and / or process as a specific sequence of steps. However, to the extent that the method or process does not rely on the specific order of the steps described herein, the method or process should not be limited to the steps of the specific order described. As will be understood by those of ordinary skill in the art, other sequences of steps are also possible. Therefore, the specific sequence of the steps set forth in the specification should not be interpreted as a limitation to the claims. In addition, the claims for the method and / or process should not be limited to the steps of performing them in the order written, and those skilled in the art can easily understand that these sequences can be changed and still remain within the spirit and scope of the embodiments of the present application.

[0029] The embodiment of the present application provides a solution preparation system, such as Figure 1 As shown, it includes: a preparation tank 1, a powder input device 2, a spraying device 3 and an air blowing device 4.

[0030] Among them, the powder input device 2 is configured to input powder into the preparation tank 1; the spray device 3 includes a spray pipe row 31 located in the preparation tank 1 and a water supply pipe 32 connected to the spray pipe row 31, and the spray pipe row 31 is provided with multiple spray holes; the air blowing device 4 includes an air blowing pipe row 41 located in the preparation tank 1 and an air supply pipe 42 connected to the air blowing pipe row 41, and the air blowing pipe row 41 is provided with multiple air injection holes.

[0031] The technical solution provided by the embodiment of the present application is to set a spray pipe row 31 and an air blast pipe row 41 in the preparation tank 1. When the powder input device 2 inputs powder into the preparation tank 1, the spray pipe row 31 can spray water, so that the powder is fully contacted and mixed with the spray water during the falling process, and the air blast pipe row 41 sprays gas, and the continuously sprayed gas stirs the mixture of water and powder to promote the uniform mixing of the material and water. The use of the solution preparation system provided by the present application to prepare the water reducer solution can greatly improve the preparation efficiency, and effectively solve the problems of the solid water reducer floating on the liquid surface due to its small density, resulting in too slow dissolution rate and unstable concentration. Of course, the solution preparation system provided by the present application is not limited to the preparation of water reducer solutions, and other types of solutions can also be prepared.

[0032] In one embodiment, Figure 1 As shown, the spray pipe row 31 in the preparation tank 1 is arranged in a cross shape, and the air blowing pipe row 41 is arranged in a cross shape. It can be understood that the spray pipe row 31 and the air blowing pipe row 41 can also be arranged in other shapes, such as a plurality of parallel pipelines.

[0033] In one embodiment, the preparation tank 1 is sealed, and the solution preparation system further includes a dust collecting device 5, which includes a first dust collecting pipe 51 connected to the top opening of the preparation tank 1 and a dust collector 53 connected to the first dust collecting pipe 51, and the dust collector 53 is configured to extract gas in the preparation tank 1 so that a negative pressure is formed in the preparation tank 1. The dust collector 53 may include a filter component and an exhaust fan located downstream of the filter component.

[0034] The preparation tank 1 is fully enclosed and connected to the dust collecting device 5, which can effectively control dust. In addition, the gas blown out of the air pipe row 41 under negative pressure has a strong stirring force, which helps the solution to be mixed more fully under the stirring of the gas.

[0035] like Figure 1 In the example, the powder input device 2 includes a weighing hopper 21 for weighing the powder located at the powder inlet of the preparation tank 1 , and the amount of the powder to be input into the preparation tank 1 is weighed by the weighing hopper 21 .

[0036] The powder input device 2 may also include a tube chain conveyor 22 for conveying powder to the weighing hopper 21 and an upper hopper 23 connected to the entrance of the tube chain conveyor 22. A powder bag 24 containing powder may be placed in the upper hopper 23, and the material in the powder bag 24 enters the upper hopper 23. The material in the upper hopper 23 falls into the entrance of the tube chain conveyor 22, and the tube chain conveyor 22 conveys the powder to the weighing hopper 21 for weighing.

[0037] The upper hopper 23, the tube chain conveyor 22, the weighing hopper 21 and the preparation tank 1 can be arranged to form a sealed feeding channel. In this way, dust can be effectively avoided in the process that the powder is transported from the upper hopper 23 to the weighing hopper 21 through the tube chain conveyor 22 and enters the preparation tank 1 through the weighing hopper 21.

[0038] When the powder bag 24 is feeding the upper hopper 23, dust will fly from above the upper hopper 23. To solve this problem, the dust collecting device 5 may further include a second dust collecting pipe 52 connected to the upper part of the upper hopper 23, and the second dust collecting pipe 52 is configured to be connected to the first dust collecting pipe 51. In this way, the dust generated by the upper hopper 23 will enter the first dust collecting pipe 51 under the action of negative pressure, and then the first dust collecting pipe 51 and the second dust collecting pipe 52 will transport the extracted dust gas to, for example, a filtering device for treatment.

[0039] Since the powder bag 24 is heavy, the powder input device 2 may further include a lifting device 25 for lifting the powder bag 24 containing the powder to the upper hopper 23. The lifting device 25 may be an electric hoist or other types of lifting devices.

[0040] Figure 1 In the example of FIG. 4 , the air supply pipe 42 is arranged to be connected to an air supply device 44 for providing compressed air. Compressed air is introduced into the preparation tank 1 through the air supply pipe 42. A control valve 43 for controlling the on-off of the pipeline is arranged on the air supply pipe 42.

[0041] The water supply pipe 31 is connected to a water supply device 35 (such as a faucet, etc.), and a flow meter 33 and an electric control valve 34 are provided on the water supply pipe 31 .

[0042] The solution preparation system also includes a control device 6, such as Figure 2 As shown, the control device 6 is controlled by PLC and is connected to the flow meter 33, the electric control valve 34 and the powder input device 2 to control the electric control valve 34 according to the measurement of the flow meter 33, thereby controlling the amount of water provided to the preparation tank 1. The control device 6 is also configured to control the amount of powder inputted into the preparation tank 1 by the powder input device 2. Figure 2 As shown, the control device 6 is connected to the junction box of the weighing bucket 21 and the tube chain conveyor 22, thereby controlling the weighing bucket 21 and the tube chain conveyor 22 to achieve quantitative conveying of powder into the preparation tank 1.

[0043] By controlling the supply amount of water and the supply amount of powder by the control device 6, the preparation ratio of powder and water can be automatically controlled, effectively improving the stability of the prepared solution.

[0044] The specific process of preparing a water reducing agent solution using a solution preparation system is described below based on a specific embodiment.

[0045] First, the ratio and total amount of solid water reducing agent and water are set on the host computer, and the powder bag 24 containing solid water reducing agent powder is transported to the upper hopper 23 by the lifting device 25 (electric hoist), and then the batching program is started.

[0046] The dust collecting device 5 is turned on, and the powder is conveyed to the weighing hopper 21 through the pipe chain conveyor 22 under the control of the control device 6. The weighing hopper 21 weighs the powder and discharges the powder into the preparation tank 1. At the same time, the spraying device 3 is turned on, and the spraying pipe row 31 sprays water evenly all around, and the aeration device 4 is turned on, and compressed air is sprayed out through the air pipe row 41. While the powder is mixed with the spraying water, the gas sprayed from the air pipe row 41 is aerated and stirred. When the powder and water reach the set amount, the control device 6 controls the pipe chain conveyor 22 to stop, and the electric control valve 34 to close. After the air pipe row 41 continues to aerate for a predetermined time (for example, 1-2 hours), the control valve 33 on the air supply pipe 32 is closed, and the batching is completed.

[0047] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0048] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include at least one of the features.

[0049] In the description of the present application, “plurality” means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0050] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0051] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0053] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A solution preparation system, characterized in that: include: Preparation tank, powder input device, spray device and aeration device; among which, The powder material input device is configured to input powder material into the preparation tank; The spray device comprises a spray pipe row located in the preparation tank and a water supply pipe connected to the spray pipe row, and the spray pipe row is provided with a plurality of spray holes; The air blowing device comprises an air blowing pipe row located in the preparation tank and an air supply pipe connected to the air blowing pipe row, and the air blowing pipe row is provided with a plurality of air injection holes.

2. The solution preparation system according to claim 1, characterized in that: The preparation tank is arranged in a sealed manner; The solution preparation system also includes a dust collecting device, which includes a first dust collecting pipe connected to the top opening of the preparation tank and a dust collector connected to the first dust collecting pipe, and the dust collector is configured to extract gas from the preparation tank to form a negative pressure in the preparation tank.

3. The solution preparation system according to claim 2, characterized in that: The powder material input device comprises a weighing hopper located at the powder material inlet of the preparation tank and used for weighing the powder material.

4. The solution preparation system according to claim 3, characterized in that: The powder material input device also includes a tube chain conveyor for conveying powder material to the weighing hopper and an upper hopper connected to the inlet of the tube chain conveyor.

5. The solution preparation system according to claim 4, characterized in that: The upper hopper, the tube chain conveyor, the weighing hopper and the preparation tank form a sealed feeding channel.

6. The solution preparation system according to claim 4, characterized in that: The dust collecting device further includes a second dust collecting pipe connected to the upper portion of the upper hopper, and the second dust collecting pipe is configured to be connected to the first dust collecting pipe.

7. The solution preparation system according to claim 4, characterized in that: It also includes a lifting device for lifting a powder bag containing powder to the upper hopper.

8. The solution preparation system according to claim 1, characterized in that: The spray pipe row is arranged in a cross shape; and / or the air blower pipe row is arranged in a cross shape.

9. The solution preparation system according to any one of claims 1 to 8, characterized in that: The air supply pipe is configured to be connected to an air supply device for providing compressed air.

10. The solution preparation system according to any one of claims 1 to 8, characterized in that: The water supply pipe is provided with a flow meter and an electric control valve; The solution preparation system also includes a control device, which is configured to be connected to the flow meter, the electric control valve and the powder input device to control the electric control valve according to the measurement of the flow meter, and control the amount of powder input into the preparation tank by the powder input device.

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