Mixing equipment for producing liquid accelerator

Abstract

The utility model discloses mixing equipment for producing a liquid accelerator, which belongs to the field of accelerator production and comprises a shell, a stirring shaft is vertically arranged in the shell, stirring blades are arranged on the outer side wall of the stirring shaft, the upper end and the lower end of the stirring shaft are open, and the stirring blades are arranged on the outer side wall of the stirring shaft. The upper end of the stirring shaft is in running fit with a feeding pipe fixedly arranged at the top of the shell, a conveying pipe is arranged in the shell, one end of the conveying pipe is open and extends into the feeding pipe, the other end of the conveying pipe extends out of the shell and is provided with a feeding port, and a conveying screw is arranged in the conveying pipe in the axial direction of the conveying screw. The conveying screw is driven by the conveying motor to rotate around the axis of the conveying screw. The utility model aims to provide the mixing equipment for producing the liquid accelerator, which can reduce the adverse effect of the liquid accelerator on the environment in the production process.

Description

Technical Field

[0001] The utility model relates to the field of quick-setting agent production, in particular to a mixing device used for the production of liquid quick-setting agent. Background Art

[0002] Liquid accelerator is an additive made of aluminum sulfate and other raw materials to make concrete harden quickly. When producing liquid accelerator, first add the specified amount of aluminum sulfate into the production container such as the reactor, dissolve the aluminum sulfate in water by stirring, then add the powdered additives of the required components into the processing container in sequence, and then continue to stir to fully mix the components.

[0003] In the above process, it is often necessary to open the lid of the production container to add additives. When the production container is open, suspended particles generated by aluminum sulfate and the like previously put into the production container and dust generated during the additive addition process overflow from the production container, thereby affecting the health of production personnel and the air environment of the production site. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems and provide a mixing device for the production of liquid accelerating setting agent, which can reduce the adverse effects of the liquid accelerating setting agent on the environment during the production process.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is a mixing device for the production of liquid accelerator, which includes a shell, a stirring shaft is vertically arranged in the shell, and a stirring blade is arranged on the outer side wall of the stirring shaft; the stirring shaft is open at both ends, and the upper end of the stirring shaft is rotatably matched with a feeding pipe fixedly arranged on the top of the shell, a delivery pipe is arranged in the shell, one end of the delivery pipe is open and extends into the feeding pipe, and the other end of the delivery pipe extends out of the shell and is provided with a feeding port, a delivery screw is arranged in the delivery pipe along its axial direction, the delivery screw rotates around the axis of the delivery screw under the drive of the delivery motor, and additives in the delivery pipe are delivered to the feeding pipe through the delivery screw, and the additives enter the shell through the stirring shaft. As the stirring shaft rotates, the additives are quickly integrated into the liquid in the shell, and since the addition of additives does not require opening the shell, the adverse effects of the liquid accelerator on the environment during the production process can be reduced.

[0006] Furthermore, in order to prevent the suspended particles in the shell and the dust generated during the additive addition process from overflowing through the conveying pipe, and to reduce the impact of the suspended particles such as aluminum sulfate in the shell on the materials in the conveying pipe, the conveying pipe is provided with an openable and closable sealing plate at one end of the feeding pipe. When the additive is added, the sealing plate closes the outlet end of the conveying pipe to prevent the suspended particles from entering the conveying pipe.

[0007] Furthermore, a driving mode of the sealing plate is that the sealing plate moves axially along the conveying pipe under the action of the sealing driving mechanism.

[0008] Furthermore, in order to prevent the conveying screw from deforming during long-term operation due to lack of support at one end, a storage tube is provided in the sealing plate, and a rotating shaft is provided at one end of the feeding tube of the conveying screw. The rotating shaft is inserted into the storage tube, and support is provided to the conveying screw through the storage tube.

[0009] Furthermore, in order to enhance the stirring effect and accelerate the dissolution efficiency, the stirring blades are arranged at intervals along the axial direction of the stirring shaft.

[0010] Furthermore, on the vertical projection plane, stirring blades of different heights are staggered, one end of the stirring blade is connected to the stirring shaft, and the other end of the stirring blade is open, and a guide plate extending toward the inside of the stirring shaft is provided on the lower edge of the connection between the stirring blade and the stirring shaft, and the outer diameter of the guide plate is smaller than the inner diameter of the stirring shaft. In this way, additives added to the shell can enter the shell at different heights, thereby further improving the dissolution rate of the additives.

[0011] Beneficial effects of the utility model: Compared with the method of opening the shell and then adding the powdered additive, the utility model directly delivers the powdered additive from the delivery pipe to the feeding pipe through the delivery screw, and then the powdered additive enters the stirring shaft under the action of gravity, so that the powdered additive can be delivered into the shell during the rotation of the stirring shaft. In the above process, the additive directly enters the liquid, so no dust is generated during the additive addition process, and there is no need to open the shell, so that the suspended particles in the shell are difficult to overflow, thereby reducing the adverse effects of the liquid quick-setting agent on the environment during the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model.

[0013] Figure 2 It is a schematic diagram of the assembly structure of the feeding pipe and the conveying pipe.

[0014] The text markings in the figure are as follows: 1. Shell; 2. Stirring shaft; 3. Stirring blade; 4. Feeding pipe; 5. Conveying pipe; 6. Feeding port; 7. Conveying screw; 8. Conveying motor; 9. Sealing plate; 10. Sealing drive mechanism; 11. Storage tube; 12. Rotating shaft; 13. Guide plate; 14. Stirring motor. DETAILED DESCRIPTION

[0015] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0016] Embodiment 1, as Figure 1-2 As shown, the structure of this embodiment is a mixing device for the production of liquid quick-setting agent, which includes a shell 1, on which a liquid adding pipe, a discharging pipe, etc. are arranged, a stirring shaft 2 is arranged vertically in the shell 1, and a stirring blade 3 is arranged on the outer wall of the stirring shaft 2, the stirring shaft 2 is open at both ends, the upper end of the stirring shaft 2 is rotatably matched with a feeding pipe 4 fixedly arranged at the top of the shell 1, and a bearing is arranged at the connection between the stirring shaft 2 and the feeding pipe 4, the output shaft of the stirring motor 14 outside the shell 1 extends into the shell 1, and is transmission-connected to the upper part of the outer wall of the stirring shaft 2 through gears, chains, etc., a conveying pipe 5 is arranged in the shell 1, in this embodiment, the conveying pipe 5 is arranged horizontally and one end of the conveying pipe 5 is open and extends into the feeding pipe 4, the other end of the conveying pipe 5 extends out of the shell 1 and is provided with a feeding port 6, the feeding port 6 is connected to the storage mechanism through a connecting pipe, etc., a conveying screw 7 is arranged along its axial direction in the conveying pipe 5, and the conveying screw 7 rotates around the axis of the conveying screw 7 under the drive of the conveying motor 8.

[0017] The conveying tube 5 is provided with an openable sealing plate 9 at one end of the feeding tube 4. The sealing plate 9 can be rotated and opened and closed by a solenoid valve or the like. In this embodiment, the sealing plate 9 moves axially along the conveying tube 5 under the action of the sealing drive mechanism 10. When the sealing plate 9 contacts the end surface of the conveying tube 5, it is in a closed state. When the sealing plate 9 is separated from the end surface of the conveying tube 5, it is in an open state. The sealing drive mechanism 10 can be a hydraulic cylinder, an electric push rod, etc. A receiving tube 11 is provided inside the sealing plate 9. The conveying screw 7 is provided with a rotating shaft 12 coaxial with the feeding tube 4 at one end. The rotating shaft 12 is inserted into the receiving tube 11. The receiving tube 11 and the rotating shaft 12 are coaxially arranged. The length of the receiving tube 11 is greater than the length of the moving distance of the sealing plate 9, so that the assembly structure of the receiving tube 11 and the rotating shaft 12 can be ensured.

[0018] Specific working process: first, add the powdered additive into the delivery pipe 5, at which time the sealing plate 9 is in a closed state, and the delivery pipe 5 and the feeding pipe 4 are in a disconnected state. As the delivery screw 7 rotates, the powdered additive in the delivery pipe 5 is pushed to the side of the feeding pipe 4. When the material in the delivery pipe 5 reaches the specified requirements, the delivery screw 7 stops rotating to maintain a standby state. When it is necessary to add powdered additives to the shell 1, the sealing plate 9 is away from the delivery pipe 5, so that the delivery pipe 5 is opened. As the delivery screw 7 rotates again, the powdered additive enters the feeding pipe 4, and then under the action of gravity, the powdered additive enters the stirring shaft 2 from the feeding pipe 4, and directly enters the liquid in the shell 1 from the open lower end of the stirring shaft 2. The amount of powdered additive added to the shell 1 can be controlled by controlling the rotation time and speed of the delivery screw 7. After the powdered additive is added, the sealing plate 9 moves toward the delivery pipe 5 to reclose the delivery pipe 5 to prevent the suspended particles in the shell 1 from contacting the powdered additive in the delivery pipe 5.

[0019] Embodiment 2, as Figure 1 As shown, other structures and working processes of this embodiment can refer to Example 1, but in this embodiment, the stirring blades 3 are arranged at intervals along the axial direction of the stirring shaft 2 and on the vertical projection plane, the stirring blades 3 of different heights are staggered, one end of the stirring blade 3 is connected to the stirring shaft 2, and the other end of the stirring blade 3 is open, and the lower edge of the connection between the stirring blade 3 and the stirring shaft 2 is provided with a guide plate 13 extending toward the inner side of the stirring shaft 2, the guide plate 13 is arranged in the same direction as the stirring shaft 2, the outer end of the stirring shaft 2 is inclined downward, and the outer diameter of the guide plate 13 is smaller than the inner diameter of the stirring shaft 2.

[0020] Specific working process: the powdered additive moving downward along the stirring shaft 2 is caught by the guide plates 13 at different heights, then enters the stirring blade 3 along the guide plates 13, and enters the shell 1 from the stirring blade 3, while the powdered additive not caught by the guide plates 13 directly enters the shell 1 from the lower end of the stirring shaft 2, so that the powdered additive added into the shell 1 is mixed with the liquid at different heights, so that the powdered additive can be quickly dissolved in the liquid, thereby improving production efficiency.

[0021] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0022] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above are only preferred implementation methods of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can also make several improvements, embellishments or changes, and can also combine the above technical features in an appropriate manner; these improvements, embellishments, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A mixing device for producing liquid quick-setting agent, comprising a housing (1), a stirring shaft (2) being vertically arranged inside the housing (1), and stirring blades (3) being arranged on the outer side wall of the stirring shaft (2), characterized in that: The stirring shaft (2) is open at both ends, and the upper end of the stirring shaft (2) is rotatably matched with a feeding pipe (4) fixedly arranged at the top of the shell (1). A conveying pipe (5) is arranged in the shell (1). One end of the conveying pipe (5) is open and extends into the feeding pipe (4), and the other end of the conveying pipe (5) extends out of the shell (1) and is provided with a feeding port (6). A conveying screw (7) is arranged in the conveying pipe (5) along its axial direction, and the conveying screw (7) rotates around the axis of the conveying screw (7) under the drive of a conveying motor (8).

2. A mixing device for producing liquid accelerating agent according to claim 1, characterized in that: The conveying pipe (5) is provided with an openable and closable sealing plate (9) at one end of the feeding pipe (4).

3. A mixing device for producing liquid accelerating agent according to claim 2, characterized in that: The sealing plate (9) moves axially along the conveying pipe (5) under the action of the sealing drive mechanism (10).

4. A mixing device for producing liquid accelerating agent according to claim 3, characterized in that: A receiving tube (11) is arranged inside the sealing plate (9), and a rotating shaft (12) is arranged at one end of the feeding tube (4) of the conveying screw (7), and the rotating shaft (12) is inserted into the receiving tube (11).

5. A mixing device for producing liquid accelerating agent according to claim 1, characterized in that: The stirring blades (3) are arranged at intervals along the axial direction of the stirring shaft (2).

6. A mixing device for producing liquid accelerating agent according to claim 5, characterized in that: On a vertical projection plane, stirring blades (3) of different heights are arranged in a staggered manner, one end of the stirring blade (3) is connected to the stirring shaft (2), and the other end of the stirring blade (3) is open, and a guide plate (13) extending toward the inside of the stirring shaft (2) is arranged on the lower edge of the connection between the stirring blade (3) and the stirring shaft (2), and the outer diameter of the guide plate (13) is smaller than the inner diameter of the stirring shaft (2).

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