Dilution kettle for diluting polycarboxylic acid water reducing agent

Abstract

The utility model discloses a dilution kettle for diluting polycarboxylate water reducing agent relates to concrete additive blending technical field, including cylindrical kettle body, stirring mechanism and at least two groups of flow guide components, the flow guide component is along the kettle body axial interval distribution, and each group flow guide component contains several circumferential uniform distribution's flow guide unit, and the flow guide unit is vertically rotatablely installed in the kettle body lateral wall through the rotary seal base, the flow guide unit includes: flow guide piece, transmission rod, the flow guide piece with the transmission rod forms a lever with the rotation part as fulcrum, the dilution reation kettle still is equipped with angle adjusting mechanism, contains: upper adjusting component and lower adjusting component, respectively corresponding the transmission rod of the flow guide unit of upper and lower two groups, electric push rod, the flow guide component is driven synchronously and makes reciprocating motion, makes the flow guide piece inclination angle.

Description

Technical Field

[0001] This utility model belongs to the field of concrete additive formulation technology, specifically relating to a dilution kettle for diluting polycarboxylate superplasticizer. Background Technology

[0002] In the production process of polycarboxylate superplasticizers, the dilution reactor is a key piece of equipment for controlling product performance. Its core function is to achieve uniform dispersion of raw materials and full extension of molecular chains through efficient mixing. In existing technologies, a fixed baffle plate is usually installed inside the dilution reactor to guide the fluid to form a specific flow pattern, thereby enhancing the mixing effect.

[0003] The dilution process of polycarboxylate superplasticizers exhibits dynamic characteristics: initially, it is a high-concentration, viscous system that requires strong shearing to break intermolecular forces; later, it becomes a low-concentration fluid that requires uniform mixing to ensure consistent molecular chain distribution. Fixed guide plates, due to their non-adjustable structural parameters (such as guide angle and plate spacing), can only adapt to a single operating condition and cannot match the rheological changes throughout the dilution process, leading to a significant contradiction between mixing efficiency and energy consumption control. Utility Model Content

[0004] In order to overcome the problems existing in the prior art, the present invention provides a dilution kettle for diluting polycarboxylate superplasticizer.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a dilution vessel for diluting polycarboxylate superplasticizer, comprising a cylindrical vessel body, a stirring mechanism, and at least two sets of flow guiding components. The flow guiding components are distributed at intervals along the axial direction of the vessel body. Each group of flow guiding components includes several circumferentially distributed flow guiding units. The flow guiding units are vertically rotatably mounted on the side wall of the vessel body via a rotating sealing base. The flow guiding unit includes: A flow guide plate is located inside the vessel body and connected to the rotating part of the rotary sealing base; A transmission rod is symmetrically connected to the guide vane on the rotating part, and the transmission rod is coaxial with the guide vane; The guide vane and the transmission rod form a lever with the rotating part as the fulcrum; The dilution reactor is also equipped with an angle adjustment mechanism, which includes an upper adjustment component and a lower adjustment component, respectively connected to the transmission rods of the upper and lower sets of the flow guiding units; An electric push rod synchronously drives the flow guiding assembly to reciprocate, allowing the flow guiding vane to be infinitely adjustable in tilt angle within the range of 20°-60°.

[0006] Furthermore, the rotary sealing base includes: Fixed seat: Fixedly installed on the side wall of the vessel body, the fixed seat has a spherical cavity inside, and the fixed seat has a guide groove pointing to the axis of the vessel body through; The rotating part is a sphere, and the sphere is in clearance fit with the spherical cavity; The connecting rod of the guide vane and the transmission rod respectively pass through the guide groove and are fixedly connected to the sphere; A sealing ring is embedded in an annular groove in the inner wall of the spherical cavity. The sealing ring is made of PTFE material and has an interference fit with the surface of the sphere. The transmission rod is a telescopic rod.

[0007] Furthermore, both the upper adjustment component and the lower adjustment component include a horizontal ring, which is concentrically arranged with the vessel body; The transmission rod is provided with a collar at its end, and the collar is rotatably connected to the horizontal ring.

[0008] Furthermore, an annular support frame is provided on the outer wall of the vessel at a position between the two sets of flow guiding components. The electric push rods are provided in two sets, corresponding to the upper adjustment component and the lower adjustment component respectively. Each set of electric push rods has at least three circumferentially arranged. The synchronous telescopic movement of the electric push rods drives the horizontal ring to translate along the axial direction of the vessel body, and then controls the tilt angle of the guide vane through the linkage between the collar and the transmission rod.

[0009] The beneficial effects of this utility model compared with the prior art are as follows: 1. The angle of the guide vane of this utility model can be dynamically adjusted according to the dilution process (such as initial high viscosity mother liquor dispersion and later low viscosity homogenization) (20°-60° stepless adjustment), breaking the flow field limitations of traditional fixed guide plates, shortening the mixing time, and through the synergistic effect of the upper and lower guide components, the axial and radial flow fields are superimposed, and the dead zone volume is reduced.

[0010] 2. The angle of the guide vane of this utility model decreases as the dilution process progresses, thereby reducing ineffective turbulence and lowering the power consumption of the stirring motor. Attached Figure Description

[0011] Figure 1 A schematic diagram of the polycarboxylate superplasticizer dilution reactor; Figure 2 This is a schematic diagram of the flow guiding unit. Figure 3 This is a schematic diagram of the cross-sectional structure of the flow guiding unit.

[0012] In the figure: 1. vessel body; 2. flow guiding assembly; 3. flow guiding unit; 4. rotary sealing base; 5. flow guiding plate; 6. rotating part; 7. transmission rod; 8. electric push rod; 9. fixed seat; 10. sealing ring; 11. horizontal ring; 12. annular support frame; 13. collar. Detailed Implementation

[0013] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below to facilitate understanding by those skilled in the art.

[0014] Please see Figures 1 to 3 The figure only shows the vessel body 1, the flow guiding component 2, and the angle adjustment mechanism. This embodiment provides a dilution vessel for diluting polycarboxylate superplasticizer, including a cylindrical vessel body 1, a stirring mechanism, and at least two sets of flow guiding components 2. The flow guiding components 2 are spaced apart along the axial direction of the vessel body 1. Each group of flow guiding components 2 includes several circumferentially distributed flow guiding units 3. The flow guiding units 3 are rotatably mounted on the side wall of the vessel body 1 via a rotary sealing base 4. The flow guiding unit 3 includes: The guide vane 5 is located inside the vessel body 1 and is connected to the rotating part 6 of the rotary sealing base 4; The transmission rod 7 is symmetrically connected to the guide vane 5 on the rotating part 6, and the transmission rod 7 is coaxial with the guide vane 5; The guide vane 5 and the transmission rod 7 form a lever with the rotating part 6 as the fulcrum; the angle of the guide vane 5 can be adjusted by moving the transmission rod 7. The dilution reactor is also equipped with an angle adjustment mechanism, which includes an upper adjustment component and a lower adjustment component, respectively connected to the transmission rods 7 of the upper and lower sets of the flow guiding units 3; The electric push rod 8 synchronously drives the flow guiding component 2 to reciprocate, so that the flow guiding plate 5 can be infinitely adjusted in tilt angle within the range of 20°-60°.

[0015] Initial stage (high viscosity): Set the angle to 50°-60° to enhance dispersion; Mid-term (transitional phase): Gradually adjust to 35°-45° to balance shear and energy consumption; Final stage (low viscosity): Adjust to 20°-30° to optimize homogenization efficiency.

[0016] The rotary sealing base 4 includes: Fixing seat 9: Fixedly installed on the side wall of the vessel body 1, the fixing seat 9 has a spherical cavity inside, and the fixing seat 9 has a guide groove pointing to the axis of the vessel body 1 through it; The rotating part 6 is a sphere, and the sphere is in clearance fit with the spherical cavity; The connecting rod of the guide vane 5 and the transmission rod 7 respectively pass through the guide groove and are fixedly connected to the sphere; The guide groove allows the guide vane 5 to be adjusted only up and down.

[0017] A sealing ring 10 is embedded in an annular groove in the inner wall of the spherical cavity. The sealing ring 10 is made of PTFE material and is in interference contact with the surface of the sphere. The transmission rod 7 is a telescopic rod.

[0018] Both the upper adjustment component and the lower adjustment component include a horizontal ring 11, which is concentrically arranged with the vessel body 1. The transmission rod 7 is provided with a collar 13 at its end, and the collar 13 is rotatably connected to the horizontal ring 11.

[0019] An annular support frame 12 is provided on the outer wall of the vessel body 1 at the position between the two sets of flow guiding components 2. The electric push rods 8 are provided in two sets, corresponding to the upper adjustment component and the lower adjustment component respectively. Each set of electric push rods 8 has at least three circumferentially arranged. The synchronous telescopic movement of the electric push rods 8 drives the horizontal ring 11 to translate along the axial direction of the vessel body 1, and then controls the tilt angle of the guide vane 5 through the linkage between the collar 13 and the transmission rod 7.

[0020] This embodiment also includes an STM32 microcontroller controller, a torque sensor in the stirring mechanism, and a viscometer in the vessel 1. The viscometer is used to monitor the viscosity of the material in real time. The STM32 microcontroller controller divides the dilution process of the water-reducing agent according to the viscosity of the material, drives the electric push rod 8 to adjust the angle of the guide vane 5, and adjusts the torque of the drive motor in the stirring mechanism.

[0021] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A dilution vessel for diluting polycarboxylate superplasticizer, comprising a cylindrical vessel body (1), a stirring mechanism, and at least two sets of flow guiding components (2), characterized in that: The flow guiding components (2) are distributed at intervals along the axial direction of the vessel body (1). Each set of flow guiding components (2) includes several circumferentially distributed flow guiding units (3). The flow guiding units (3) are vertically rotatably installed on the side wall of the vessel body (1) through a rotating sealing base (4). The flow guiding unit (3) includes: a flow guiding plate (5), located inside the vessel body (1) and connected to the rotating part (6) of the rotary sealing base (4); A transmission rod (7) is symmetrically connected to the guide vane (5) on the rotating part (6), and the transmission rod (7) is coaxial with the guide vane (5); the guide vane (5) and the transmission rod (7) form a lever with the rotating part (6) as the fulcrum; the dilution reactor is also provided with an angle adjustment mechanism, including: an upper adjustment component and a lower adjustment component, which are respectively connected to the transmission rod (7) of the upper and lower guide units (3); an electric push rod (8) synchronously drives the guide component (2) to reciprocate, so that the guide vane (5) can be steplessly adjusted in the range of 20°-60°.

2. The dilution vessel for diluting polycarboxylate superplasticizer according to claim 1, characterized in that... The rotary sealing base (4) includes: a fixed seat (9): fixedly disposed on the side wall of the vessel body (1), the fixed seat (9) having a spherical cavity inside, and the fixed seat (9) having a guide groove pointing to the axis of the vessel body (1) through; a rotating part (6), the rotating part (6) being a sphere, the sphere being clearance-fitted with the spherical cavity; the connecting rod of the guide plate (5) and the transmission rod (7) passing through the guide groove and being fixedly connected to the sphere; a sealing ring (10), embedded in the annular groove of the inner wall of the spherical cavity, the sealing ring (10) being made of PTFE material and having an interference contact with the surface of the sphere; and the transmission rod (7) being a telescopic rod.

3. The dilution vessel for diluting polycarboxylate superplasticizer according to claim 2, characterized in that: Both the upper adjustment assembly and the lower adjustment assembly include a horizontal ring (11), which is concentrically arranged with the vessel body (1); the end of the transmission rod (7) is provided with a collar (13), which is rotatably connected to the horizontal ring (11).

4. The dilution vessel for diluting polycarboxylate superplasticizer according to claim 3, characterized in that... The outer wall of the vessel body (1) is provided with an annular support frame (12) located between the two sets of flow guiding components (2). There are two sets of electric push rods (8), which correspond to the upper adjustment component and the lower adjustment component respectively. Each set of electric push rods (8) has at least three circumferentially arranged. The synchronous telescopic movement of the electric push rods (8) drives the horizontal ring (11) to translate along the axial direction of the vessel body (1). Then, through the linkage between the collar (13) and the transmission rod (7), the tilt angle of the flow guiding plate (5) is controlled.

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