Composite retarding and water reducing agent mixing device

Abstract

The utility model discloses a compound type retarding and water reducing agent mixing device which comprises a support, a screening tank is fixed at the top end of the support, a driving motor is installed at the top end of the screening tank, a driving rotating shaft is installed at the output end of the driving motor, a mixing tank is integrally formed at the bottom end of the screening tank, and a discharging port is formed in the bottom end of the mixing tank. A plurality of feeding pipes are arranged at the top end of the screening tank, various raw materials correspond to independent feeding ports, control blades are arranged in control pipes at the bottom ends of the feeding ports for blocking, when the raw materials need to be controlled to enter the screening tank, only corresponding servo motors need to be started, the servo motors drive control shafts to rotate, the control shafts drive the control blades to rotate, and the raw materials can be controlled to enter the screening tank. The control blade drives the raw materials in the control pipe to enter the screening tank through the feeding pipe, and the input amount of a single raw material can be accurately controlled by controlling the starting time of each servo motor, so that the purpose that the compound type retarding and water reducing agent mixing device can quantitatively place various raw materials is achieved.

Description

Technical Field

[0001] This utility model relates to the field of admixture production technology, and in particular to a compound retarder water-reducing agent mixing device. Background Technology

[0002] Composite retarder-setting water-reducing agent is a multi-functional concrete admixture, mainly composed of a retarder and a water-reducing agent. It can extend the setting time of concrete, reduce cement requirements, and minimize concrete loss without affecting concrete strength. The addition of the retarder component significantly extends the setting time, which is particularly important in large-volume concrete applications, high-temperature summer construction, or situations requiring prolonged workability. The retarding effect helps reduce the heat of hydration in concrete, reducing the occurrence of temperature cracks. The water-reducing agent component significantly reduces the water content of concrete and improves its fluidity, thus reducing cement usage and costs while maintaining workability. The water-reducing effect also improves the density and strength of concrete. The composite retarder-setting water-reducing agent mixing device is a specialized piece of equipment designed for the production of retarder-setting water-reducing agents. It consists of a main structure, a batching and conveying system, a mixing system, a control system, and other auxiliary structures. These structures work together to mix different raw materials to ensure that the performance and quality of the retarder-setting water-reducing agent meet requirements.

[0003] To this end, Chinese Patent Application Publication No. CN214345699U discloses a clean mixing device for polycarboxylate superplasticizers, including a mixing tank. A vertical stirring mechanism is installed inside the mixing tank, and a horizontal stirring mechanism is provided on one side of the vertical stirring mechanism. Vertical stirring blades are installed inside the vertical stirring mechanism, and one end of each blade is connected to the output end of a second drive motor through a second stirring shaft passing through the surface of the mixing tank. Horizontal stirring blades are also provided inside the horizontal stirring mechanism. In this invention, when the polycarboxylate superplasticizer is added to the mixing tank, the operator starts the vertical and horizontal stirring mechanisms to stir the polycarboxylate superplasticizer mixture inside the tank. The vertical stirring mechanism stirs the polycarboxylate superplasticizer mixture vertically, and the horizontal stirring mechanism stirs it horizontally. This method is simple to operate and effectively avoids the stratification of the polycarboxylate superplasticizer mixture, improving the quality of the polycarboxylate superplasticizer in later use.

[0004] Current composite retarder water-reducing agent mixing equipment can basically meet people's needs, but some problems still exist, as detailed below:

[0005] 1. The problem of quantitative placement of multiple raw materials in the mixing device of composite retarder water-reducing agent is that the performance and quality of retarder water-reducing agent depend on the precise ratio of its components. By quantitatively placing the raw materials, it can be ensured that the mixing device can obtain the same mixture ratio every time it runs, avoiding repeated adjustments and waste caused by inaccurate ratio. At the same time, the application scenarios of retarder water-reducing agent are diverse, and different construction scenarios have different performance requirements for retarder water-reducing agent, which requires adjustment and change of the ratio of multiple raw materials.

[0006] 2. The mixing device for composite retarder water-reducing agents has difficulty preventing the agglomeration of various raw materials. The performance and quality of retarder water-reducing agents largely depend on the uniformity of their components. Powdered raw materials may agglomerate during storage. These agglomerated parts cannot be fully dispersed during mixing, resulting in uneven mixing and unstable performance of the produced retarder water-reducing agent, which affects the final quality. Utility Model Content

[0007] The purpose of this invention is to provide a composite retarding water-reducing agent mixing device to solve the defects of existing composite retarding water-reducing agent mixing devices, which are difficult to quantitatively place multiple raw materials and difficult to prevent multiple raw materials from agglomerating.

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a composite retarding water-reducing agent mixing device, including a support frame;

[0009] The top of the bracket is fixed with a screening tank, and the top of the screening tank is equipped with a feeding mechanism. The feeding mechanism includes a feed inlet, a control tube, a feed pipe, a servo motor, a control shaft, and control blades. The feed pipe is opened at the top of the screening tank, and the top of the feed pipe is integrally formed with a control tube. The top of the control tube is integrally formed with a feed inlet.

[0010] A servo motor is installed at one end of the control tube, a control shaft is installed at the output end of the servo motor, a drive motor is installed at the top of the sieving tank, an active rotating shaft is installed at the output end of the drive motor, and a sieving structure is installed on the outside of the active rotating shaft.

[0011] The bottom of the screening tank is integrally formed with a mixing tank, the mixing tank has a mixing structure installed inside, the bottom of the mixing tank has a discharge port, and the discharge port has a control valve installed inside.

[0012] In use, various raw materials are first put into the feed inlet from multiple different inlets. The amount of each raw material is put into the feed pipe by controlling the start time of the servo motor. The raw materials entering the sieving tank pass through the screen and enter the mixing tank. The drive motor drives the active shaft to rotate, which in turn drives the support rod and scraper to rotate. The scraper crushes the raw materials that are blocked on the screen, so that they pass through the screen and enter the mixing pipe. The raw materials are fully mixed by multiple sets of stirring blades. After the mixture is uniform, the control valve is opened to allow the mixed retarder and water reducer to be discharged from the outlet.

[0013] Furthermore, control blades are installed on the outer side of the control shaft. The control blades are arranged in a ring. When the control blades are stationary, they can block the control tube. When they rotate, they can drive the raw material in the control tube into the feed tube.

[0014] Furthermore, the sieving structure includes a support rod, a scraper, and a screen. The support rod is fixed to the outside of the drive shaft, and the screen is welded to the inside of the sieving tank to crush the lumps of raw materials, facilitating subsequent mixing.

[0015] Furthermore, a scraper is fixed to the bottom end of the support rod. The scraper is symmetrically distributed about the central axis of the active rotating shaft. It can crush the lumps of raw materials so that they can pass through the screen and enter the mixing tank. At the same time, it can perform preliminary simple mixing of multiple raw materials to prevent a single raw material from accumulating in one place.

[0016] Furthermore, the mixing structure includes a driving gear, a driven gear, a driven shaft, a stirring blade, and a support frame. The driving gear is fixed to the outside of the driving shaft, and a driven gear is meshed with one side of the driving gear. The driven shaft is fixed inside the driven gear, and the support frame is welded to the bottom of the mixing tank to facilitate thorough mixing of various raw materials.

[0017] Furthermore, both the driving gear and the driven gear are provided with locking teeth on their outer sides, and the driving gear and the driven gear are meshed together, allowing one drive motor to simultaneously drive multiple sets of stirring blades to rotate and mix materials.

[0018] Furthermore, stirring blades are fixed to the outer side of the driven shaft, and the stirring blades are arranged at equal intervals on the outer side of the driven shaft, which increases the stirring range and the complexity of stirring.

[0019] This utility model provides a composite retarder water-reducing agent mixing device, the advantages of which are: by opening multiple feed pipes at the top of the sieving tank, multiple raw materials correspond to separate feed ports, and control blades in the control pipe at the bottom of the feed port block the flow. When it is necessary to control the raw material to enter the sieving tank, only the corresponding servo motor needs to be started. The servo motor drives the control shaft to rotate, the control shaft drives the control blades to rotate, and the control blades drive the raw material in the control pipe to enter the sieving tank through the feed pipe. By controlling the starting time of each servo motor, the input amount of a single raw material can be precisely controlled, thereby achieving the purpose of quantitative placement of multiple raw materials by the composite retarder water-reducing agent mixing device.

[0020] By welding a screen inside the sieving tank, most of the powdered raw materials pass through the screen and enter the mixing tank at the bottom after entering the sieving tank. Some lumpy raw materials are blocked on the surface of the screen. The drive motor drives the active shaft to rotate, which in turn drives the support rod to rotate. The support rod drives the scraper to rotate. The scraper is made of silicone material, which is tough, and has an angled bottom. When it encounters lumpy raw materials, it crushes the lumps and drives them to rotate on the screen surface. Under the combined action of pressing and friction, the lumps are crushed and can pass through the screen into the mixing tank. At the same time, it can perform preliminary simple mixing of various raw materials, preventing single raw materials from gathering in one place, which facilitates subsequent mixing operations. This achieves the purpose of the composite retarder water-reducing agent mixing device in preventing multiple raw materials from clumping. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 This is a frontal cross-sectional view of the present invention.

[0023] Figure 3 This is a partial sectional view of the feeding structure of this utility model from the side.

[0024] Figure 4 This is a top view cross-sectional structural diagram of the present invention;

[0025] Figure 5 For the present utility model Figure 2 A magnified schematic diagram of a partial cross-section at point A in the middle.

[0026] The following are the annotations in the diagram: 1. Support frame; 2. Sieving tank; 3. Batching mechanism; 301. Feed inlet; 302. Control pipe; 303. Feed pipe; 304. Servo motor; 305. Control shaft; 306. Control blade; 4. Drive motor; 5. Drive shaft; 6. Sieving structure; 601. Support rod; 602. Scraper; 603. Screen; 7. Mixing tank; 8. Mixing structure; 801. Drive gear; 802. Driven gear; 803. Driven shaft; 804. Stirring blade; 805. Support frame; 9. Feed inlet; 10. Control valve. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-5 One embodiment of this utility model is a composite retarder water-reducing agent mixing device, which includes a support frame 1.

[0029] The top of the support 1 is fixed with a screening tank 2. The top of the screening tank 2 is equipped with a feeding mechanism 3. The feeding mechanism 3 includes an inlet 301, a control tube 302, an inlet tube 303, a servo motor 304, a control shaft 305, and control blades 306. The inlet tube 303 is located at the top of the screening tank 2. The top of the inlet tube 303 is integrally formed with the control tube 302. The top of the control tube 302 is integrally formed with the inlet 301. One end of the control tube 302 is equipped with a servo motor 304. The output end of the servo motor 304 is equipped with a control shaft 305. The outer side of the control shaft 305 is equipped with control blades 306, which are arranged in a ring.

[0030] See attached document Figure 1-3 As shown, multiple feed pipes 303 are opened at the top of the screening tank 2, and different raw materials correspond to separate feed ports 301. There are control blades 306 in the control pipe 302 at the bottom of the feed port 301 to block the flow. When it is necessary to control the raw material to enter the screening tank 2, it is only necessary to start the corresponding servo motor 304. The servo motor 304 drives the control shaft 305 to rotate, the control shaft 305 drives the control blades 306 to rotate, and the control blades 306 drive the raw material in the control pipe 302 to enter the screening tank 2 through the feed pipes 303. By controlling the starting time of each servo motor 304, the input amount of a single raw material can be precisely controlled.

[0031] A drive motor 4 is installed at the top of the sieving tank 2, and an active rotating shaft 5 is installed at the output end of the drive motor 4.

[0032] A screening structure 6 is installed on the outside of the active rotating shaft 5. The screening structure 6 includes a support rod 601, a scraper 602 and a screen 603. The support rod 601 is fixed on the outside of the active rotating shaft 5. The scraper 602 is fixed at the bottom of the support rod 601. The scraper 602 is symmetrically distributed about the central axis of the active rotating shaft 5. The screen 603 is welded to the inside of the screening tank 2.

[0033] See attached document Figure 2 As shown, a screen 603 is welded inside the sieving tank 2. Most of the powdered raw materials pass through the screen 603 after entering the sieving tank 2 and enter the mixing tank 7 at the bottom. Some lumpy raw materials are blocked on the surface of the screen 603. The drive motor 4 drives the active rotating shaft 5 to rotate, which in turn drives the support rod 601 to rotate. The support rod 601 drives the scraper 602 to rotate. The scraper 602 is made of silicone and has a tough texture. The bottom end is set with an angle. When it encounters lumpy raw materials, it will crush the lumps and drive them to rotate on the surface of the screen 603. Under the combined action of pressing and friction, the lumps are crushed and can pass through the screen 603 into the mixing tank 7. At the same time, it can perform preliminary simple mixing of various raw materials, avoiding the accumulation of single raw materials in one place, which facilitates subsequent mixing operations.

[0034] The bottom of the screening tank 2 is integrally formed with a mixing tank 7. The mixing tank 7 is equipped with a mixing structure 8. The mixing structure 8 includes a driving gear 801, a driven gear 802, a driven shaft 803, a stirring blade 804, and a support frame 805. The driving gear 801 is fixed to the outside of the driving shaft 5. The driven gear 802 is meshed with one side of the driving gear 801. Both the driving gear 801 and the driven gear 802 are provided with teeth on their outer sides. The driving gear 801 and the driven gear 802 are meshed. The driven shaft 803 is fixed inside the driven gear 802. The stirring blade 804 is fixed to the outside of the driven shaft 803. The stirring blade 804 is arranged at equal intervals on the outside of the driven shaft 803. The support frame 805 is welded to the bottom of the mixing tank 7.

[0035] See attached document Figure 2 and attached Figure 4-5 As shown, the drive motor 4 drives the active shaft 5 to rotate, the active shaft 5 drives the active gear 801 to rotate, the active gear 801 drives multiple sets of driven gears 802 to rotate, and the driven gears 802 drive multiple sets of driven shafts 803 and stirring blades 804 to rotate. The heights of the multiple sets of stirring blades 804 are staggered, which increases the mixing range and complexity, and avoids mutual interference between the multiple sets of stirring blades 804. This allows the various raw materials of the composite retarder water-reducing agent to be fully and evenly mixed together, improving the quality of the final product. The support frame 805 welded inside the mixing tank 7 provides support for the multiple sets of driven shafts 803, making the rotation of the driven shafts 803 more stable.

[0036] The bottom of the mixing tank 7 is provided with a discharge port 9, and a control valve 10 is installed inside the discharge port 9.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A composite retarder water-reducing agent mixing device, comprising a support frame (1); Its features are: The top of the support (1) is fixed with a sieve tank (2), and the top of the sieve tank (2) is equipped with a feeding mechanism (3). The feeding mechanism (3) includes a feed inlet (301), a control tube (302), a feed pipe (303), a servo motor (304), a control shaft (305), and a control blade (306). The feed pipe (303) is opened at the top of the sieve tank (2), and the top of the feed pipe (303) is integrally formed with a control tube (302). The top of the control tube (302) is integrally formed with a feed inlet (301). A servo motor (304) is installed at one end of the control tube (302), and a control shaft (305) is installed at the output end of the servo motor (304). A drive motor (4) is installed at the top of the sieve tank (2), and an active rotating shaft (5) is installed at the output end of the drive motor (4). A sieve structure (6) is installed on the outside of the active rotating shaft (5). The bottom of the sieving tank (2) is integrally formed with a mixing tank (7), and a mixing structure (8) is installed inside the mixing tank (7). The bottom of the mixing tank (7) is provided with a discharge port (9), and a control valve (10) is installed inside the discharge port (9).

2. The composite retarder water-reducing agent mixing device according to claim 1, characterized in that: Control blades (306) are mounted on the outer side of the control shaft (305), and the control blades (306) are arranged in a ring.

3. The composite retarder water-reducing agent mixing device according to claim 1, characterized in that: The sieving structure (6) includes a support rod (601), a scraper (602) and a screen (603). The support rod (601) is fixed to the outside of the active rotating shaft (5), and the screen (603) is welded to the inside of the sieving tank (2).

4. The composite retarder water-reducing agent mixing device according to claim 3, characterized in that: The bottom end of the support rod (601) is fixed with a scraper (602), and the scraper (602) is symmetrically distributed about the central axis of the active rotating shaft (5).

5. The composite retarder water-reducing agent mixing device according to claim 1, characterized in that: The mixing structure (8) includes a drive gear (801), a driven gear (802), a driven shaft (803), a stirring blade (804), and a support frame (805). The drive gear (801) is fixed to the outside of the drive shaft (5). The driven gear (802) is meshed with one side of the drive gear (801). The driven shaft (803) is fixed inside the driven gear (802). The support frame (805) is welded to the bottom of the mixing tank (7).

6. The composite retarder water-reducing agent mixing device according to claim 5, characterized in that: Both the driving gear (801) and the driven gear (802) are provided with locking teeth on their outer sides, and the driving gear (801) and the driven gear (802) are meshed together.

7. The composite retarder water-reducing agent mixing device according to claim 5, characterized in that: A stirring blade (804) is fixed on the outside of the driven shaft (803), and the stirring blade (804) is arranged at equal intervals on the outside of the driven shaft (803).

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