A concrete admixture spraying device and method of use thereof

Abstract

The application discloses a concrete admixture spraying device, which comprises an admixture treatment box, a feeding hopper, a caking grinding mechanism, an admixture screening mechanism, a mixing rod and a powder suction pump; the feeding hopper is fixedly connected to the admixture treatment box; the caking grinding mechanism is rotatably connected to the inside of the feeding hopper and comprises a grinding plate, so that the caked admixture can be ground; the admixture screening mechanism is rotatably connected to the admixture treatment box; two mixing rods are rotatably connected to the admixture treatment box; and the powder suction pump is fixedly connected to one side of the admixture treatment box. The caking grinding mechanism is driven by a motor to reciprocatingly swing the grinding plate, so that the caked admixture can be crushed; and the grinding plate can be moved back and forth under the action of an arc-shaped rack, so that the technical problems in the prior art are effectively solved, and the caked admixture can be effectively crushed.

Description

Technical Field

[0001] This application relates to the field of admixture addition device technology, and more specifically, to a concrete admixture spraying device and its usage method. Background Technology

[0002] Concrete admixtures are substances added to improve and adjust the properties of concrete. The application of concrete admixtures in engineering is receiving increasing attention. The addition of admixtures plays a certain role in improving concrete performance, but the selection, addition method, and adaptability of admixtures will seriously affect their development. When using admixtures, they need to be sprayed onto the concrete.

[0003] The prior art publication CN214982149U discloses a device for adding concrete admixtures. This device has a cleaning device at the powder spray nozzle. Since the powder spray nozzle is prone to clogging after prolonged use, the cleaning device can prevent clogging and ensure that the spray nozzle can spray the admixture normally at any time without affecting the quality of the admixture added to the concrete. In addition, this device has a monitoring function for the admixture volume in the admixture storage tank, so that no human supervision is required. Automatic monitoring is less prone to oversight and avoids insufficient admixture volume, thereby ensuring that the powder pump can properly transfer the admixture in the admixture storage tank.

[0004] While the existing technical solutions described above can achieve the relevant beneficial effects through their structure, they still have the following drawbacks: When using this device, powdered admixtures (such as expanding agents) are prone to caking due to moisture. Caking powdered admixtures should be dried, crushed, and sieved before use. However, this device is not convenient for crushing caking powdered admixtures, causing uncrushed particles to expand upon contact with water, resulting in bulging on the concrete surface. Therefore, we propose a concrete admixture spraying device. Summary of the Invention

[0005] 1. Technical problems to be solved

[0006] The purpose of this application is to provide a concrete admixture spraying device, which solves the technical problem in the prior art that it is inconvenient to crush powdered admixtures that have formed clumps, and achieves the technical effect of crushing clumped admixtures.

[0007] 2. Technical Solution

[0008] The present invention provides a concrete admixture spraying device, comprising: an admixture processing box, a feeding hopper, an agglomeration grinding mechanism, an admixture screening mechanism, a mixing rod, and a powder suction pump.

[0009] A feeding hopper is fixedly connected to the upper part of the admixture treatment box;

[0010] The agglomeration grinding mechanism is rotatably connected inside the feeding hopper, which can realize the grinding of agglomerated admixtures;

[0011] The admixture screening mechanism is rotatably connected and installed inside the admixture processing box;

[0012] Two mixing rods are rotatably installed inside the admixture treatment tank; a powder suction pump is fixedly connected to one side of the admixture treatment tank. A spray pipe is connected to the outlet of the powder suction pump.

[0013] As an optional embodiment of the technical solution in this application, the agglomeration grinding mechanism includes a grinding plate, a swing frame, a motor, and a transmission rod. A motor is fixedly mounted on the outside of the admixture processing box. The lower outer wall of the swing frame extends through the inner wall of the feeding hopper to the outside and is fixedly connected to the motor output end. The gap between the lower end of the swing frame and the inner wall of the feeding hopper is consistent with the maximum diameter of the required concrete admixture.

[0014] By adopting the above technical solution, the motor drives the connected swing frame to swing back and forth.

[0015] As an optional solution to the technical solution of this application, sliders are fixedly connected to the outer walls of both ends of the grinding plate, and the outer wall of the sliders is slidably engaged with the inner wall of the swing frame.

[0016] As an optional solution to the technical solution of this application, the transmission rod is rotatably connected to the inner wall of one end of the swing frame, and a transmission wheel is fixedly connected to the outer end of the transmission rod; an arc-shaped rack is fixedly connected to the inner wall of the hopper near the transmission wheel, and the arc-shaped rack meshes with the transmission wheel for transmission.

[0017] As an optional solution to the technical solution of this application, an annular guide groove is provided on the outer wall of one end of the transmission rod located inside the swing frame, and a guide rod is fixedly connected to the upper slider, with the outer wall of the guide rod slidingly engaged with the inner wall of the annular guide groove.

[0018] By adopting the above technical solution, under the action of the arc-shaped rack, the transmission wheel drives the connected transmission rod to rotate. Since the transmission rod has an annular guide groove, it will drive the guide rod to move, and then drive the grinding plate connected to the slider to move back and forth.

[0019] As an optional solution to the technical solution of this application, the admixture screening mechanism includes a screening plate and a scraper. The middle part of the screening plate is rotatably connected to the inner wall of the admixture treatment box via a pin, and the two ends of the screening plate are slidably in contact with the inner wall of the admixture treatment box. Fixed frames are fixedly connected to both sides of the top surface of the screening plate, and a sector gear A is fixedly connected to the middle of the fixed frame. A sector gear B is fixedly connected to the bottom of the swing frame, and the sector gear B meshes with the sector gear A for transmission.

[0020] By adopting the above technical solution, when the swing frame swings back and forth, the sector gear B will drive the screening plate connected to the sector gear A to swing back and forth.

[0021] As an optional solution to the technical solution of this application, a weight block is fixedly connected to both ends of the scraper, and the outer wall of the weight block is slidably fitted with the inner walls of both sides of the fixing frame.

[0022] By adopting the above technical solution, when the screening plate swings back and forth, the scraper connected with the weight block will move when the screening plate tilts, thereby leveling the additive and improving screening efficiency.

[0023] As an optional solution to the technical solution of this application, an eccentric rod is fixedly connected to the middle of the mixing rod, and a connecting rod is rotatably connected to the other end of the eccentric rod. The other end of the connecting rod is rotatably hinged to the screening plate.

[0024] By adopting the above technical solution, when the screening plate oscillates back and forth, it will drive the mixing rod connected to the eccentric rod to rotate through the connecting rod, thereby stirring the screened additives.

[0025] As an optional solution to the technical solution of this application, the input end of the powder suction pump is connected to the inner wall of the admixture treatment tank, and the output end of the powder suction pump is connected to and fixedly provided with a spray pipe.

[0026] A method for using a concrete admixture spraying device includes the following steps:

[0027] S1. When it is necessary to add admixtures to concrete during concrete construction, the admixtures can be poured into the feeding hopper first, and the motor can be started to drive the connected swing frame to swing back and forth to squeeze the admixtures, so that the clumps of admixtures can be broken up and separated.

[0028] S2. At the same time, when the swing frame swings back and forth, the arc rack causes the transmission wheel to drive the connected transmission rod to rotate, which in turn drives the grinding plate connected to the slider to move back and forth, thereby grinding the agglomerated additives and improving the crushing efficiency.

[0029] S3. Then the agglomerated admixture will fall onto the screening plate. When the swing frame swings back and forth, the sector gear B will drive the screening plate connected to the sector gear A to swing back and forth, so as to screen the admixture. When the screening plate swings back and forth, the scraper connected to the weight block will move when the screening plate tilts, so as to flatten the admixture and improve the screening efficiency.

[0030] S4. Then, when the sieve plate oscillates back and forth, it will drive the mixing rod connected to the eccentric rod to rotate through the connecting rod, and stir the sieved additive.

[0031] S5. Start the powder pump, hold the spray nozzle, and you can spray the admixture onto the concrete surface.

[0032] 3. Beneficial effects

[0033] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0034] 1. This invention employs an agglomeration grinding mechanism, which uses a motor to drive the grinding plate to reciprocate and oscillate, thereby crushing the agglomerated additives. Simultaneously, the grinding plate can reciprocate under the action of the arc-shaped rack. Therefore, this invention effectively solves the technical problems in the prior art and achieves the effect of crushing agglomerated additives.

[0035] 2. This application provides an admixture screening mechanism within the admixture processing chamber. This mechanism allows the screening plate to reciprocate during the use of the agglomeration and grinding mechanism, thereby enabling rapid screening of the admixture and ensuring the quality of admixture separation.

[0036] 3. This application improves screening efficiency by setting a scraper on the screening plate, which can be moved by the weight block to move the additives on the screening plate. By setting a connecting rod, the mixing rod can be driven to rotate while the screening plate swings, so as to achieve a mixing and stirring effect. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall structure of a concrete admixture spraying device disclosed in a preferred embodiment of this application;

[0038] Figure 2 This is a partial cross-sectional view of the overall structure of the concrete admixture spraying device disclosed in a preferred embodiment of this application;

[0039] Figure 3 This is a cross-sectional schematic diagram of the feeding hopper structure of a concrete admixture spraying device disclosed in a preferred embodiment of this application;

[0040] Figure 4This is a schematic diagram showing the agglomeration and grinding mechanism of a concrete admixture spraying device disclosed in a preferred embodiment of this application;

[0041] Figure 5 This is a schematic diagram showing the structure of the admixture screening mechanism of the concrete admixture spraying device disclosed in a preferred embodiment of this application;

[0042] Figure 6 This is a schematic diagram of the mixing rod structure of a concrete admixture spraying device disclosed in a preferred embodiment of this application;

[0043] The following are the labels in the diagram: 1. Admixture processing box; 2. Feed hopper; 3. Agglomeration grinding mechanism; 4. Admixture screening mechanism; 5. Mixing rod; 6. Powder suction pump; 7. Spray pipe; 301. Grinding plate; 302. Swing frame; 303. Motor; 304. Transmission rod; 305. Sliding block; 306. Transmission wheel; 307. Annular guide groove; 308. Guide rod; 309. Sector gear B; 401. Screening plate; 402. Scraper; 403. Fixing frame; 404. Sector gear A; 405. Weight block; 501. Eccentric rod; 502. Connecting rod; 201. Arc-shaped rack. Detailed Implementation

[0044] The present application will be further described in detail below with reference to the accompanying drawings.

[0045] Reference Figure 1 and Figure 2 A concrete admixture spraying device includes an admixture processing box 1, a feeding hopper 2, an agglomeration grinding mechanism 3, an admixture screening mechanism 4, a mixing rod 5, and a powder suction pump 6.

[0046] An additive handling tank 1 is equipped with a feeding hopper 2 fixedly connected to the upper part;

[0047] The agglomeration grinding mechanism 3 is rotatably connected inside the feeding hopper 2, which can realize the grinding treatment of agglomerated additives;

[0048] The admixture screening mechanism 4 is rotatably connected and installed inside the admixture processing box 1;

[0049] Two mixing rods 5 are rotatably installed inside the admixture treatment tank 1;

[0050] The powder suction pump 6 is fixedly installed on one side of the admixture treatment tank 1, and a spray pipe 7 is connected to the outlet of the powder suction pump 6.

[0051] Reference Figure 3 and Figure 4 The agglomeration grinding mechanism 3 includes a grinding plate 301, a swing frame 302, a motor 303 and a transmission rod 304. The motor 303 is fixedly installed on the outside of the admixture treatment box 1, and the output end of the motor 303 passes through the inner wall of the admixture treatment box 1 and the feeding hopper 2.

[0052] The lower outer wall of the swing frame 302 extends through the inner wall of the feeding hopper 2 to the outside and is fixedly connected to the output end of the motor 303. The gap between the lower end of the swing frame 302 and the inner wall of the feeding hopper 2 is consistent with the maximum diameter of the required concrete admixture.

[0053] Slider 305s are fixedly connected to the outer walls of both ends of the grinding plate 301. The outer wall of the slider 305 is slidably engaged with the inner wall of the swing frame 302. A groove is provided on the inner wall of the swing frame 302, and the inner wall of the groove is slidably engaged with the outer wall of the slider 305.

[0054] The transmission rod 304 is rotatably connected to the inner wall of one end of the swing frame 302. The transmission wheel 306 is fixedly connected to the outer end of the transmission rod 304. An arc-shaped rack 201 is fixedly connected to the inner wall of the hopper 2 near the transmission wheel 306. The arc-shaped rack 201 meshes with the transmission wheel 306 for transmission.

[0055] The inner walls on both sides of the feeding hopper 2 are inclined to facilitate extrusion processing with the grinding plate 301.

[0056] The transmission rod 304, located inside the swing frame 302, has an annular guide groove 307 on its outer wall. A guide rod 308 is fixedly connected to the upper slider 305, and the outer wall of the guide rod 308 is slidably engaged with the inner wall of the annular guide groove 307. The annular guide groove 307 can drive the guide rod 308 to reciprocate.

[0057] Reference Figure 4 and Figure 5 The additive screening mechanism 4 includes a screening plate 401 and a scraper 402.

[0058] The middle part of the screening plate 401 is rotatably connected to the inner wall of the admixture treatment box 1 via a pin.

[0059] The two ends of the screening plate 401 are slidably in contact with the inner wall of the admixture treatment box 1; both sides of the top surface of the screening plate 401 are fixedly connected to the fixing frame 403, and the middle of the fixing frame 403 is fixedly connected to the sector gear A404; the bottom of the swing frame 302 is fixedly connected to the sector gear B309, and the sector gear B309 and the sector gear A404 are meshed and driven.

[0060] Both ends of the scraper 402 are fixedly connected to a weight block 405, and the outer wall of the weight block 405 is slidably fitted with the inner walls on both sides of the fixing frame 403. The weight block 405 is made of iron.

[0061] Reference Figure 2 and Figure 6An eccentric rod 501 is fixedly connected to the middle of the mixing rod 5, and a connecting rod 502 is rotatably connected to the other end of the eccentric rod 501. The other end of the connecting rod 502 is rotatably hinged to the screening plate 401.

[0062] The input end of the powder suction pump 6 is connected to the inner wall of the admixture treatment tank 1, and the output end of the powder suction pump 6 is connected to a fixed spray pipe.

[0063] Reference Figures 1-6 A method for using a concrete admixture spraying device includes the following steps:

[0064] S1. When it is necessary to add admixtures to concrete during concrete construction, the admixtures can be poured into the feeding hopper 2 first. At this time, the motor 303 is started to drive the connected swing frame 302 to swing back and forth, squeezing the admixtures so that the clumps of admixtures can be broken up and separated.

[0065] S2. At the same time, when the swing frame 302 swings back and forth, under the action of the arc rack 201, the transmission wheel 306 drives the connected transmission rod 304 to rotate, which in turn drives the grinding plate 301 connected to the slider 305 to move back and forth, thereby grinding the agglomerated additives and improving the crushing efficiency.

[0066] S3. Then, the agglomerated admixture falls onto the screening plate 401. When the swing frame 302 swings back and forth, the sector gear B309 drives the screening plate 401 connected to the sector gear A404 to swing back and forth, thereby screening the admixture. When the screening plate 401 swings back and forth, the scraper 402 connected to the weight block 405 will move when the screening plate 401 tilts, thereby leveling the admixture and improving screening efficiency.

[0067] S4. Then, when the sieve plate 401 swings back and forth, it will drive the mixing rod 5 connected to the eccentric rod 501 to rotate through the connecting rod 502, and stir the sieved additive.

[0068] S5. Start the powder pump 6 and hold the spray nozzle 7 to spray the admixture onto the concrete surface.

[0069] For example:

[0070] The working principle of the concrete admixture spraying device of the present invention is as follows: When it is necessary to add admixture to concrete during concrete construction, the admixture can be poured into the feeding hopper 2 first. At this time, the motor 303 is started to drive the connected swing frame 302 to swing back and forth, squeezing the admixture so that the clumps of admixture can be broken and separated.

[0071] Meanwhile, when the swing frame 302 swings back and forth, under the action of the arc rack 201, the transmission wheel 306 drives the connected transmission rod 304 to rotate. Since the transmission rod 304 has an annular guide groove 307, it will drive the guide rod 308 to move, and then drive the grinding plate 301 connected to the slider 305 to move back and forth, thereby grinding the agglomerated additives and improving the crushing efficiency.

[0072] Then, the agglomerated additive powder falls onto the sieve plate 401. When the swing frame 302 swings back and forth, the sieve plate 401 connected to the sector gear A404 will swing back and forth through the sector gear B309, thereby screening the additive. When the sieve plate 401 swings back and forth, the scraper 402 connected to the weight block 405 will move when the sieve plate 401 tilts, thereby leveling the additive and improving screening efficiency.

[0073] Then, when the screening plate 401 swings back and forth, it will drive the mixing rod 5 connected to the eccentric rod 501 to rotate through the connecting rod 502, and stir the screened admixture. Then, start the powder suction pump 6 and hold the spray pipe 7 to spray the admixture onto the concrete surface.

[0074] This invention employs an agglomeration grinding mechanism. A motor drives a grinding plate to reciprocate, crushing agglomerated additives. Simultaneously, the arc-shaped rack allows the grinding plate to move back and forth, achieving the effect of grinding the agglomerated additives. By installing scrapers on the screening plate, which are moved by a weight, the additives on the screening plate can be agitated, improving screening efficiency. A connecting rod allows the mixing rod to rotate while the screening plate oscillates, achieving a mixing and agitating effect.

[0075] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A concrete admixture spraying device, comprising: an admixture processing tank (1), a feeding hopper (2), an agglomeration grinding mechanism (3), an admixture screening mechanism (4), a mixing rod (5), and a powder suction pump (6), characterized in that: The upper part of the admixture treatment box (1) is fixedly equipped with a feeding hopper (2); The agglomeration grinding mechanism (3) is rotatably connected inside the feeding hopper (2), which can grind the agglomerated additives. The admixture screening mechanism (4) is rotatably connected to the admixture processing box (1); Two mixing rods (5) are rotatably installed inside the admixture treatment box (1); The powder suction pump (6) is fixedly connected to one side of the admixture treatment tank (1); a spray pipe (7) is connected to the outlet of the powder suction pump (6); The agglomeration grinding mechanism (3) includes a grinding plate (301), a swing frame (302), and a motor (303). The lower outer wall of the swing frame (302) extends through the inner wall of the feeding hopper (2) to the outside and is fixedly connected to the output end of the motor (303). The grinding plate (301) is slidably mounted on the swing frame (302). The gap between the lower end of the swing frame (302) and the inner wall of the feeding hopper (2) is consistent with the maximum diameter of the required concrete admixture. The grinding plate (301) has sliders (305) fixedly connected to the outer walls at both ends, and the outer wall of the sliders (305) is slidably engaged with the inner wall of the swing frame (302). A transmission rod (304) is rotatably connected through the inner wall of one end of the swing frame (302), and a transmission wheel (306) is fixedly connected to the outer end of the transmission rod (304). An arc-shaped rack (201) is fixedly connected to the inner wall of the hopper (2) near the transmission wheel (306), and the arc-shaped rack (201) is meshed with the transmission wheel (306) for transmission. The transmission rod (304) has an annular guide groove (307) on the outer wall of one end inside the swing frame (302). A guide rod (308) is fixedly connected to the upper slider (305). The outer wall of the guide rod (308) is slidably engaged with the inner wall of the annular guide groove (307). The agglomeration grinding mechanism uses a motor to drive the grinding plate to reciprocate and oscillate, crushing the agglomerated additives. At the same time, under the action of the arc-shaped rack, the grinding plate reciprocates and moves to crush the agglomerated additives.

2. The concrete admixture spraying device according to claim 1, characterized in that: The admixture screening mechanism (4) includes a screening plate (401) and a scraper (402). The middle part of the screening plate (401) is rotatably connected to the inner wall of the admixture treatment box (1) through a pin shaft, and the two ends of the screening plate (401) are in sliding contact with the inner wall of the admixture treatment box (1). Both sides of the top surface of the screening plate (401) are fixedly provided with a fixing frame (403), and a sector gear A (404) is fixedly provided in the middle of the fixing frame (403). The bottom of the swing frame (302) is fixedly connected to a sector gear B (309), which meshes with sector gear A (404) for transmission.

3. The concrete admixture spraying device according to claim 2, characterized in that: Both ends of the scraper (402) are fixedly connected to a weight block (405), and the outer wall of the weight block (405) is slidably fitted with the inner walls on both sides of the fixing frame (403).

4. The concrete admixture spraying device according to claim 3, characterized in that: An eccentric rod (501) is fixedly connected to the middle of the mixing rod (5), and a connecting rod (502) is rotatably connected to the other end of the eccentric rod (501). The other end of the connecting rod (502) is hinged to the screening plate (401).

5. The concrete admixture spraying device according to claim 4, characterized in that: The input end of the powder suction pump (6) is connected to the inner wall of the admixture treatment tank (1).

6. A method of using the concrete admixture spraying device as described in claim 5, comprising the following steps: S1. During concrete construction, when it is necessary to add admixtures to the concrete, first pour the admixture into the feeding hopper (2), start the motor (303) to drive the connected swing frame (302) to swing back and forth, squeeze the admixture, so that the clumped admixture can be separated. S2. When the swing frame (302) swings back and forth, under the action of the arc rack (201), the transmission wheel (306) drives the connected transmission rod (304) to rotate, which in turn drives the grinding plate (301) connected to the slider (305) to move back and forth, thereby grinding the agglomerated additives and improving the crushing efficiency. S3. Then, the agglomerated and ground additives will fall onto the sieve plate (401). When the swing frame (302) swings back and forth, the sieve plate (401) connected to the sector gear A (404) will swing back and forth through the sector gear B (309), so that the additives can be screened. When the sieve plate (401) swings back and forth, the scraper (402) connected to the weight block (405) will move when the sieve plate (401) tilts, so as to flatten the additives and improve the screening efficiency. When the sieve plate (401) swings back and forth, it will drive the mixing rod (5) connected to the eccentric rod (501) to rotate through the connecting rod (502) to stir the sieved additive evenly. S5. Start the powder pump (6), hold the spray nozzle (7), and you can spray the admixture onto the concrete surface.

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