Concrete polycarboxylic acid water reducing agent feeding device

Abstract

The utility model discloses a concrete polycarboxylic acid water reducing agent feeding device, which relates to the technical field of concrete production, and comprises a mixing tank and a liquid inlet pipe fixedly arranged on the mixing tank, one end of the liquid inlet pipe extending out of the top of the mixing tank is connected with a feeding assembly, and one end of the liquid inlet pipe extending into the mixing tank is provided with an anti-blocking assembly. After raw materials are mixed every time, the motor I is started to drive the gear II to rotate, so that the gear I is driven to rotate, the four scrapers rotate to scrape impurities on the inner wall of the outlet of the liquid inlet pipe, and the impurities fall into the mixing tank through the blanking holes, so that the splashed raw materials are prevented from blocking the outlet of the liquid inlet pipe of the polycarboxylic acid water reducing agent, and the mixing efficiency is improved. The problems that in the prior art, after the polycarboxylic acid water reducing agent is fed, when concrete raw materials are stirred, part of the raw materials are splashed to block an outlet of a liquid inlet pipe of the polycarboxylic acid water reducing agent easily are solved.

Description

Technical Field

[0001] This utility model relates to the field of concrete production technology, and in particular to a concrete polycarboxylic acid water-reducing agent feeding device. Background Technology

[0002] Polycarboxylate superplasticizers are typically liquids, primarily composed of carboxylic acid monomers and polymer products. Being liquid, they are easily added to concrete and can be effectively mixed with other concrete materials. Furthermore, most polycarboxylate superplasticizers are water-soluble, making them easier to handle. The main function of polycarboxylate superplasticizers in concrete is to improve its strength and durability by reducing the water-cement ratio, increasing its fluidity and workability. Additionally, polycarboxylate superplasticizers can reduce concrete shrinkage and cracking, improving its impermeability and durability.

[0003] In the existing technology, there are several shortcomings in the feeding of polycarboxylic acid water-reducing agents. First, the polycarboxylic acid water-reducing agent needs to be manually mixed in proportion. Since the polycarboxylic acid water-reducing agent is mixed manually, the ratio of the concrete raw materials is bound to be incorrect, which leads to an imbalance in the composition, fails to achieve the best effect, and wastes raw materials. Second, when mixing concrete raw materials, some raw materials splash up and can easily block the inlet of the polycarboxylic acid water-reducing agent. Therefore, it is necessary to propose a concrete polycarboxylic acid water-reducing agent feeding device to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a concrete polycarboxylic acid water-reducing agent feeding device to solve the problem that the existing technology cannot accurately match the amount of polycarboxylic acid water-reducing agent when feeding it, resulting in an imbalance in the composition ratio, failing to achieve the best effect, and wasting raw materials. In addition, when mixing concrete raw materials, some raw materials splash up and easily block the inlet of the polycarboxylic acid water-reducing agent.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a concrete polycarboxylic acid water-reducing agent feeding device, comprising a mixing tank and an inlet pipe fixedly installed on the mixing tank, wherein one end of the inlet pipe extending out of the top of the mixing tank is connected to a feeding assembly, and an anti-blocking assembly is provided at one end of the inlet pipe extending into the interior of the mixing tank;

[0006] The anti-clogging component includes a protective box, which is fixedly connected to the mixing tank by a fixing rod. The protective box is fixedly installed on the outer ring of the liquid inlet pipe. An upper support ring and a lower support ring are fixedly installed on the upper and lower inner walls of the protective box, respectively. The upper support ring is fixed on the outer ring of the bottom of the liquid inlet pipe. A gear is rotatably installed between the upper support ring and the lower support ring. The inner wall diameters of the gear, the liquid inlet pipe, and the lower support ring are all the same and are arranged concentrically. Four scrapers are fixedly installed on the inner wall of the gear in a ring and are evenly distributed. The scrapers extend into the interior of the liquid inlet pipe and are in contact with the inner wall of the liquid inlet pipe. The bottom of the protective box is provided with a discharge hole with the same diameter as the inner wall of the lower support ring and arranged concentrically.

[0007] The protective box is equipped with a power unit that drives the gear to rotate.

[0008] Preferably, the power assembly includes a motor 1 fixedly mounted on the top of the mixing tank, the shaft of the motor 1 movably passing through the mixing tank and extending into the interior of the protective box, one end of which is fixedly connected to a gear 2, the gear 2 and gear 1 meshing with each other.

[0009] Preferably, a limiting ring is fixedly provided on both the upper and lower surfaces of the gear, and a limiting groove adapted to the limiting ring is fixedly provided inside both the upper and lower support rings. The vertical cross-section of both the limiting ring and the limiting groove is a "T" shaped structure.

[0010] Preferably, the feeding assembly includes a storage tank located on the side of the mixing tank, a conveying pump is provided on the top of the storage tank, the output end of the conveying pump is connected to a conveying pipe, and a connecting pipe is connected between the conveying pipe and the liquid inlet pipe.

[0011] Preferably, an electric valve is provided on the connecting pipe, a measuring tube is provided on the electric valve, a flow meter is connected to the end of the measuring tube away from the electric valve, and a sensor is provided on the measuring tube.

[0012] Preferably, the top of the mixing tank is also provided with a second motor and a feed inlet. The second motor is located in the middle of the mixing tank. One end of the rotating shaft of the second motor extends into the interior of the mixing tank and is connected to a stirring frame. The bottom of the mixing tank is provided with a discharge outlet.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. After each batch of raw materials is mixed, start motor one, which drives gear two to rotate, which in turn drives gear one to rotate, causing the four scrapers to rotate and scrape off the debris on the inner wall of the inlet pipe outlet. The debris then falls into the mixing tank through the discharge hole, thus preventing splashed raw materials from blocking the inlet pipe outlet of the polycarboxylic acid water-reducing agent. This solves the problem in the existing technology where, after the polycarboxylic acid water-reducing agent is fed, some raw materials splash up and easily block the inlet pipe outlet of the polycarboxylic acid water-reducing agent during the mixing of concrete raw materials.

[0015] 2. By setting the electric valve, sensor and flow meter, the dosage of polycarboxylic acid water-reducing agent can be accurately matched, which solves the problem that the dosage of polycarboxylic acid water-reducing agent cannot be accurately matched when feeding polycarboxylic acid water-reducing agent, resulting in an imbalance of the compound ratio, failure to achieve the best effect, and waste of raw materials.

[0016] 3. By setting up a protective box, gears two and one are protected to prevent raw materials from splashing and adhering to gears two and one, thus affecting their meshing. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a concrete polycarboxylic acid water-reducing agent feeding device according to the present invention.

[0018] Figure 2 This is a cross-sectional structural diagram of a concrete polycarboxylic acid water-reducing agent feeding device according to the present invention.

[0019] Figure 3 This utility model Figure 1 An enlarged schematic diagram of the structure at point A.

[0020] Figure 4 This is a schematic diagram of the protective box structure of this utility model.

[0021] Figure 5 This is a schematic diagram of the internal structure of the protective box of this utility model.

[0022] Figure 6 This is a schematic diagram of the disassembled structure of the anti-blocking component of this utility model.

[0023] In the diagram: 1. Mixing tank; 2. Storage tank; 3. Transfer pump; 4. Transfer pipe; 5. Inlet pipe; 6. Connecting pipe; 7. Electric valve one; 8. Measuring pipe; 9. Sensor; 10. Flow meter; 11. Motor one; 12. Protective box; 13. Fixing rod; 14. Upper support ring; 15. Lower support ring; 16. Gear one; 17. Gear two; 18. Limiting ring; 19. Limiting groove; 20. Scraper; 21. Motor two; 22. Stirring frame; 23. Feed inlet; 24. Discharge outlet. Detailed Implementation

[0024] 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.

[0025] This utility model provides, for example Figures 1-6 The illustrated concrete polyacrylic acid water-reducing agent feeding device includes a mixing tank 1 and an inlet pipe 5 fixedly mounted on the mixing tank 1. One end of the inlet pipe 5 extending from the top of the mixing tank 1 is connected to a feeding assembly. An anti-clogging component is installed at the end of the inlet pipe 5 extending into the mixing tank 1. The anti-clogging component includes a protective box 12, which is fixedly connected to the mixing tank 1 via a fixing rod 13. The protective box 12 is fixedly mounted on the outer ring of the inlet pipe 5. An upper support ring 14 and a lower support ring 15 are fixedly mounted on the upper and lower inner walls of the protective box 12, respectively. The upper support ring 14 is fixed to the outer ring at the bottom of the inlet pipe 5. A gear 16 is rotatably mounted between the upper support ring 14 and the lower support ring 15. The inner diameters of the inlet pipe 5 and the lower support ring 15 are the same, and the three are arranged concentrically. The inner wall of the gear 16 is fixedly provided with four scrapers 20 evenly distributed in a ring. The scrapers 20 extend into the interior of the inlet pipe 5 and fit against the inner wall of the inlet pipe 5. The bottom of the protective box 12 is provided with a discharge hole with the same diameter as the inner wall of the lower support ring 15 and arranged concentrically. The protective box 12 is provided with a power assembly that drives the gear 16 to rotate. The power assembly includes a motor 11 fixedly installed on the top of the mixing tank 1. The shaft of the motor 11 moves through the mixing tank 1 and extends into the interior of the protective box 12. One end is fixedly connected to a gear 17. The gear 17 and the gear 16 mesh with each other.

[0026] When feeding polycarboxylic acid water-reducing agent, the feeding assembly delivers the agent to the inlet pipe 5, which then enters the mixing tank 1 to mix with other concrete materials. After mixing, some material may splash and adhere to the inner wall of the outlet of the inlet pipe 5, which can eventually block the outlet. Therefore, after each mixing, motor 11 is started, which drives gear 2 17 to rotate, which in turn drives gear 16 to rotate, causing the four scrapers 20 to rotate and scrape away the debris on the inner wall of the outlet of the inlet pipe 5. The debris then falls into the mixing tank 1 through the discharge hole, thus preventing splashed material from blocking the outlet of the polycarboxylic acid water-reducing agent inlet pipe 5. This solves the problem in the existing technology where splashed material easily blocks the outlet of the polycarboxylic acid water-reducing agent inlet pipe 5 when mixing concrete materials after feeding the polycarboxylic acid water-reducing agent.

[0027] In addition, the protective box 12 protects gear 2 17 and gear 16, preventing raw materials from splashing and adhering to gear 2 17 and gear 16, thus affecting their meshing.

[0028] Furthermore, limit rings 18 are fixedly provided on both the upper and lower surfaces of gear 16, and limit grooves 19 adapted to limit rings 18 are fixedly provided inside the upper support ring 14 and the lower support ring 15. The vertical cross-sections of limit rings 18 and limit grooves 19 are both T-shaped structures. This arrangement facilitates stable rotation of gear 16 between the upper support ring 14 and the lower support ring 15.

[0029] Furthermore, the feeding assembly includes a storage tank 2 located on the side of the mixing tank 1. A conveying pump 3 is installed on the top of the storage tank 2. The output end of the conveying pump 3 is connected to a conveying pipe 4. A connecting pipe 6 is connected between the conveying pipe 4 and the inlet pipe 5. An electric valve 7 is installed on the connecting pipe 6. A measuring pipe 8 is installed on the electric valve 7. A flow meter 10 is connected to the end of the measuring pipe 8 away from the electric valve 7. A sensor 9 is installed on the measuring pipe 8.

[0030] Specifically, when feeding polycarboxylic acid water-reducing agent, the conveying pump 3 is started, and the polycarboxylic acid water-reducing agent in the storage tank 2 is sequentially conveyed to the mixing tank 1 through the conveying pipe 4, connecting pipe 6 and liquid inlet pipe 5. At this time, the pointer of the flow meter 10 changes. When the pointer rotates to the predetermined position, the sensor 9 will transmit the signal to the electric valve 7 to close it, thereby accurately matching the amount of polycarboxylic acid water-reducing agent. This solves the problem that the existing technology cannot accurately match the amount of polycarboxylic acid water-reducing agent when feeding it, resulting in an imbalance in the ratio of the synthesized product, failing to achieve the best effect, and wasting raw materials.

[0031] Furthermore, the top of the mixing tank 1 is also equipped with a second motor 21 and a feed inlet 23. The second motor 21 is located in the middle of the mixing tank 1. The end of the rotating shaft of the second motor 21 that extends into the interior of the mixing tank 1 is connected to a stirring rack 22. The bottom of the mixing tank 1 is equipped with a discharge port 24. After all the raw materials are injected into the mixing tank 1, the second motor 21 is started to drive the stirring rack 22 to rotate and mix the raw materials. Finally, the electric valve 2 on the discharge port 24 is opened to discharge the compound.

Claims

1. A concrete polycarboxylic acid water-reducing agent feeding device, comprising a mixing tank (1) and an inlet pipe (5) fixedly disposed on the mixing tank (1), characterized in that: The end of the inlet pipe (5) extending out of the top of the mixing tank (1) is connected to the feeding assembly, and the end of the inlet pipe (5) extending into the interior of the mixing tank (1) is provided with an anti-blocking assembly; The anti-clogging component includes a protective box (12), which is fixedly connected to the mixing tank (1) via a fixing rod (13). The protective box (12) is fixedly installed on the outer ring of the inlet pipe (5). An upper support ring (14) and a lower support ring (15) are fixedly installed on the upper and lower inner walls of the protective box (12), respectively. The upper support ring (14) is fixed on the outer ring at the bottom of the inlet pipe (5), and the upper support ring (14) and the lower support ring (15) are rotatably connected. There is a gear (16), the inner wall diameters of the gear (16), the inlet pipe (5) and the lower support ring (15) are the same, and the three are arranged in concentric circles. The inner wall of the gear (16) is fixedly provided with four scrapers (20) evenly distributed in a ring. The scrapers (20) extend into the interior of the inlet pipe (5) and fit against the inner wall of the inlet pipe (5). The bottom of the protective box (12) is provided with a discharge hole with the same diameter as the inner wall of the lower support ring (15) and arranged in concentric circles. The protective box (12) is equipped with a power component that drives the gear (16) to rotate.

2. The concrete polyacrylic acid water-reducing agent feeding device according to claim 1, characterized in that: The power assembly includes a motor (11) fixedly mounted on the top of the mixing tank (1). The shaft of the motor (11) moves through the mixing tank (1) and extends into the interior of the protective box (12). One end of the shaft is fixedly connected to a gear (17), and the gear (17) and the gear (16) mesh with each other.

3. The concrete polyacrylic acid water-reducing agent feeding device according to claim 2, characterized in that: The upper and lower surfaces of the gear (16) are fixedly provided with limiting rings (18), and the upper support ring (14) and the lower support ring (15) are fixedly provided with limiting grooves (19) that are adapted to the limiting rings (18). The vertical cross-sections of the limiting rings (18) and the limiting grooves (19) are both in the shape of a "T".

4. The concrete polyacrylic acid water-reducing agent feeding device according to claim 2, characterized in that: The feeding assembly includes a storage tank (2) located on the side of the mixing tank (1). A conveying pump (3) is provided on the top of the storage tank (2). The output end of the conveying pump (3) is connected to a conveying pipe (4). A connecting pipe (6) is connected between the conveying pipe (4) and the liquid inlet pipe (5).

5. The concrete polyacrylic acid water-reducing agent feeding device according to claim 4, characterized in that: An electric valve (7) is provided on the connecting pipe (6), a measuring pipe (8) is provided on the electric valve (7), a flow meter (10) is connected to the end of the measuring pipe (8) away from the electric valve (7), and a sensor (9) is provided on the measuring pipe (8).

6. The concrete polyacrylic acid water-reducing agent feeding device according to claim 4, characterized in that: The top of the mixing tank (1) is also provided with a second motor (21) and a feed inlet (23). The second motor (21) is located in the middle of the mixing tank (1). The end of the rotating shaft of the second motor (21) that extends into the interior of the mixing tank (1) is connected to a stirring rack (22). The bottom of the mixing tank (1) is provided with a discharge port (24).

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