Safety device for metering admixture in concrete mixing plant
By designing a safety device including a rotating cylinder and a high-pressure nozzle in a concrete mixing station, the problem of corrosion of liquid admixture on the metering bucket components is solved, effective recycling of admixtures and safe use of the metering bucket are achieved, and the quality of concrete production is improved.
Patent Information
- Application Number
- CN202422138482.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-02
AI Technical Summary
The liquid admixture used in concrete mixing stations may corrode the valve body and other components of the metering bucket, causing the admixture to leak into the mixing equipment, affecting the quality of the concrete.
A safety device is designed, including a mixing barrel, a metering bucket, a recycling barrel and a sewage bucket. The metering bucket is rotated to the upper side of the recycling barrel by rotating the cylinder to recover excess admixtures, and the metering bucket is flushed through a high-pressure spray head to reduce corrosion and leakage.
It effectively avoids the admixtures staying in the metering bucket for a long time, reduces corrosion on the metering bucket parts, and improves the safety of the metering bucket and the quality of concrete production.
Smart Images
Figure CN223030059U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of concrete mixing equipment, and particularly relates to a safety device for metering admixtures in a concrete mixing plant. Background Technique
[0002] In order to improve the setting time, fluidity, and early strength of concrete, and increase the frost resistance, impermeability, abrasion resistance, corrosion resistance and other properties of concrete, admixtures that can improve and regulate the properties of concrete are incorporated during the mixing process of concrete. For example, to adapt to pumping, it is required that the concrete has high fluidity, then a water reducer can be added to the concrete. According to the appearance form, the admixtures can be divided into water-based and powder-based. Usually, the powder-based admixtures need to be dissolved in advance and then added to the concrete, and the liquid admixtures are mainly added to the concrete in the form of a solution, but it is necessary to pay attention to accurate metering. The dosage of the liquid admixtures should be strictly controlled in both experiments and actual production. If the dosage is too small, the due performance improvement of the concrete cannot be achieved, and if the dosage is too large, problems such as excessive retardation, bleeding, and segregation of the concrete will occur. Therefore, only an appropriate dosage can bring out the best effect of the admixtures.
[0003] Among them, the admixtures used in the concrete mixing plant are corrosive liquids. During the long-term use process, the admixtures will corrode components such as the valve body pipeline of the metering hopper, and it is possible that the excess admixtures in the metering hopper leak into the mixing equipment, thus mixing with the concrete and affecting the quality of the concrete.
[0004] Therefore, it is very necessary to invent a safety device for metering admixtures in a concrete mixing plant to solve the above problems. Content of the Utility Model
[0005] The purpose of the utility model is to provide a safety device for metering admixtures in a concrete mixing plant to solve the problem in the technology that the admixtures may corrode components such as the valve body of the metering hopper, and it is possible that the excess admixtures in the metering hopper leak into the mixing equipment, thus mixing with the concrete and affecting the quality of the concrete.
[0006] To achieve the above purpose, the utility model provides the following technical solution: A safety device for metering admixtures in a concrete mixing plant, including a mixing barrel, a support frame is fixedly connected to the side of the mixing barrel, a recovery barrel and a sewage discharge barrel are respectively fixedly connected to the left and right sides of the support frame, a rotary cylinder is fixedly installed on the upper side of the support frame, a feed hole is opened on the upper surface of the mixing barrel, a metering hopper is arranged above the feed hole, and a cleaning mechanism is arranged above the metering hopper. The cleaning mechanism includes an electric motor, a first bevel gear, a water inlet pipeline, a shunt pipeline, a high-pressure spray head, a second bevel gear, and a water delivery pipeline.
[0007] By adopting the above technical solution, the admixture is poured into the interior of the metering hopper. The metering hopper adds the specified weight of the admixture into the interior of the mixing barrel through the feeding hole. After the addition is completed, the rotary cylinder rotates the metering hopper to the upper side of the recovery barrel, and the excess admixture in the metering hopper drips into the recovery barrel for recycling and reuse of the admixture. Then, the metering hopper is rotated to the upper side of the sewage disposal barrel. At this time, the water inlet pipe sprays water flow into the interior of the metering hopper through the high-pressure nozzle to wash the interior of the metering hopper, avoiding the long-term stay of the admixture in the metering hopper, reducing the corrosion of the metering hopper by the admixture, and improving the use safety of the metering hopper.
[0008] Optionally, a blanking pipe is fixedly connected to the lower end of the metering hopper, an electric valve is arranged in the middle of the blanking pipe, and a feeding hole is formed in the upper surface of the metering hopper.
[0009] By adopting the above technical solution, the electric valve is used to open and close the blanking pipe, and the feeding hole is used to inject the admixture into the interior of the metering hopper.
[0010] Optionally, a fixing frame is fixedly connected to the side surface of the blanking pipe, a support rod is fixedly connected to the side surface of the fixing frame, and one end of the support rod away from the fixing frame is fixedly connected to the output end of the rotary cylinder.
[0011] By adopting the above technical solution, the fixing frame is used to fix the blanking pipe and the metering hopper, and at the same time, the rotary cylinder drives the metering hopper to rotate.
[0012] Optionally, a positioning block is fixedly connected to the upper surface of the metering hopper, a positioning groove is formed in the inner wall of the positioning block, the water inlet pipe is rotatably connected to the positioning block, a positioning ring is fixedly connected to the surface of the water inlet pipe, and the positioning ring is rotatably connected to the positioning groove.
[0013] By adopting the above technical solution, the water inlet pipe rotates inside the positioning block, and the positioning ring rotates inside the positioning groove to position the position of the water inlet pipe.
[0014] Optionally, the electric motor is fixedly installed on the upper surface of the metering hopper, the first bevel gear is fixedly connected to the output end of the electric motor, the second bevel gear is fixedly connected to the surface of the water inlet pipe, and the first bevel gear is meshed with the second bevel gear.
[0015] By adopting the above technical solution, the output end of the electric motor drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, and the second bevel gear drives the water inlet pipe to rotate.
[0016] Optionally, a limiting block is fixedly connected to the lower end of the water delivery pipe. A limiting groove is formed in the inner wall of the limiting block. A limiting ring is fixedly connected to the upper end of the water inlet pipe. The water inlet pipe is rotatably connected to the limiting block, and the limiting ring is rotatably connected to the limiting groove.
[0017] By adopting the above technical solution, the upper end of the water inlet pipe rotates inside the limiting block, and the limiting ring rotates inside the limiting groove, thus limiting the upper end of the water inlet pipe.
[0018] Optionally, the shunt pipe is fixedly connected to the lower end of the water inlet pipe. A plurality of groups of high-pressure nozzles are provided, and the plurality of groups of high-pressure nozzles are symmetrically distributed on the front and rear sides of the shunt pipe.
[0019] By adopting the above technical solution, the plurality of groups of high-pressure nozzles spray water flows at different angles to perform all-round flushing on the metering hopper.
[0020] Optionally, a sewage discharge hopper is fixedly connected to the upper end of the sewage discharge bucket, and a recovery hopper is fixedly connected to the upper end of the recovery bucket.
[0021] By adopting the above technical solution, the sewage discharge hopper is used to receive the flushing sewage, and the recovery hopper is used to receive the unused admixture.
[0022] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:
[0023] 1. The present utility model rotates the metering hopper to the upper side of the recovery bucket through a rotary cylinder, and drips the excess admixture in the metering hopper into the recovery bucket for recycling the admixture. Then, the metering hopper is rotated to the upper side of the sewage discharge bucket. At this time, the water inlet pipe sprays water flow into the metering hopper through the high-pressure nozzles to wash the inside of the metering hopper, avoiding the long-term stay of the admixture in the metering hopper, reducing the corrosion of the metering hopper by the admixture, improving the use safety of the metering hopper, ensuring the accuracy of the admixture, improving the production quality of concrete, and solving the problems in the technology that the admixture may corrode components such as the valve body of the metering hopper, and it is possible that the excess admixture in the metering hopper leaks into the mixing equipment, thus mixing with the concrete and affecting the quality of the concrete;
[0024] 2. The present utility model drives the water inlet pipe to rotate through the cooperation of the electric motor, the first bevel gear and the second bevel gear, and at the same time, cooperates with a plurality of groups of high-pressure nozzles to spray water flows at different angles to perform all-round flushing on the metering hopper, improving the cleanliness inside the metering hopper, enabling the use of various admixtures, and improving the adaptability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 is a schematic structural diagram of the whole of the present utility model;
[0026] Figure 2 Schematic diagram of the support frame structure of the present utility model;
[0027] Figure 3 Schematic diagram of the metering hopper structure of the present utility model;
[0028] Figure 4 Schematic diagram of the cleaning mechanism structure of the present utility model;
[0029] Figure 5 of the present utility model Figure 4 cross-sectional structure diagram.
[0030] Explanation of reference numerals:
[0031] 1. Stirring barrel; 11. Feeding hole; 2. Support frame; 21. Rotary cylinder; 3. Metering hopper; 31. Discharge pipeline; 32. Electric valve; 33. Fixed frame; 34. Support rod; 35. Feeding hole; 36. Positioning block; 37. Positioning groove; 38. Electric motor; 39. First bevel gear; 4. Water inlet pipeline; 41. Shunt pipeline; 42. High-pressure nozzle; 43. Positioning ring; 44. Limiting ring; 45. Second bevel gear; 5. Water delivery pipeline; 51. Limiting block; 52. Limiting groove; 6. Sewage bucket; 61. Sewage hopper; 7. Recovery bucket; 71. Recovery hopper. Specific embodiments
[0032] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0033] The present utility model provides a safety device for admixture metering in a concrete mixing plant as Figures 1 to 4 shown, including a stirring barrel 1, a support frame 2 fixedly connected to the side of the stirring barrel 1, a recovery bucket 7 and a sewage bucket 6 fixedly connected to the left and right sides of the support frame 2 respectively, a sewage hopper 61 fixedly connected to the upper end of the sewage bucket 6, a recovery hopper 71 fixedly connected to the upper end of the recovery bucket 7, a rotary cylinder 21 fixedly installed on the upper side of the support frame 2, a feeding hole 11 opened on the upper surface of the stirring barrel 1, a metering hopper 3 arranged above the feeding hole 11, a cleaning mechanism arranged above the metering hopper 3, the cleaning mechanism including an electric motor 38, a first bevel gear 39, a water inlet pipeline 4, a shunt pipeline 41, a high-pressure nozzle 42, a second bevel gear 45, a water delivery pipeline 5, a discharge pipeline 31 fixedly connected to the lower end of the metering hopper 3, an electric valve 32 arranged in the middle of the discharge pipeline 31, a feeding hole 35 opened on the upper surface of the metering hopper 3, a fixed frame 33 fixedly connected to the side of the discharge pipeline 31, a support rod 34 fixedly connected to the side of the fixed frame 33, and one end of the support rod 34 away from the fixed frame 33 fixedly connected to the output end of the rotary cylinder 21.
[0034] Among them, the admixture is fed into the interior of the metering hopper 3 through the feeding hole 35. Then, the electric valve 32 opens the feeding pipeline 31, and the specified amount of admixture is fed into the interior of the mixing barrel 1 through the feeding hole 11. After the admixture is added to the specified amount, the electric valve 32 closes the lower end of the feeding pipeline 31. At this time, the rotary cylinder 21 rotates the metering hopper 3 to the upper side of the recovery barrel 7. At this time, the electric valve 32 opens the feeding pipeline 31, and the excess admixture in the metering hopper 3 is poured into the interior of the recovery hopper 71. The recovery hopper 71 recovers the admixture into the interior of the recovery barrel 7, preventing the excess admixture from dripping into the interior of the mixing barrel 1 and improving the quality of concrete preparation. Then, the rotary cylinder 21 drives the metering hopper 3 to rotate to the upper side of the sewage disposal barrel 6. Next, the water supply pipeline 5 conveys water flow into the interior of the water inlet pipeline 4, and high-pressure water flow is sprayed through multiple groups of high-pressure nozzles 42 to wash the interior of the metering hopper 3, preventing the admixture from remaining in the interior of the metering hopper 3, improving the safety of the metering hopper 3, and extending the service life of the metering hopper 3.
[0035] Refer to Figures 3 to 5 , a positioning block 36 is fixedly connected to the upper surface of the metering hopper 3. A positioning groove 37 is formed in the inner wall of the positioning block 36. The water inlet pipeline 4 is rotatably connected to the positioning block 36. A positioning ring 43 is fixedly connected to the surface of the water inlet pipeline 4. The positioning ring 43 is rotatably connected to the positioning groove 37. An electric motor 38 is fixedly installed on the upper surface of the metering hopper 3. A first bevel gear 39 is fixedly connected to the output end of the electric motor 38. A second bevel gear 45 is fixedly connected to the surface of the water inlet pipeline 4. The first bevel gear 39 is meshed with the second bevel gear 45. A limiting block 51 is fixedly connected to the lower end of the water supply pipeline 5. A limiting groove 52 is formed in the inner wall of the limiting block 51. A limiting ring 44 is fixedly connected to the upper end of the water inlet pipeline 4. The water inlet pipeline 4 is rotatably connected to the limiting block 51. The limiting ring 44 is rotatably connected to the limiting groove 52. A shunt pipeline 41 is fixedly connected to the lower end of the water inlet pipeline 4. Multiple groups of high-pressure nozzles 42 are provided, and the multiple groups of high-pressure nozzles 42 are symmetrically distributed on the front and rear sides of the shunt pipeline 41.
[0036] Specifically, the output end of the electric motor 38 drives the first bevel gear 39 to rotate. The first bevel gear 39 drives the second bevel gear 45 to rotate. The second bevel gear 45 drives the water inlet pipeline 4 to rotate inside the positioning block 36 and the limiting block 51. At this time, the water inlet pipeline 4 drives the lower shunt pipeline 41 to rotate. The shunt pipeline 41 drives multiple groups of high-pressure nozzles 42 on the side to rotate. The multiple groups of high-pressure nozzles 42 spray high-pressure water flow at multiple angles and rotate along with the water inlet pipeline 4 to clean the metering hopper 3 in all directions. At the same time, during the rotation of the water inlet pipeline 4, the positioning ring 43 rotates inside the positioning groove 37, and the limiting ring 44 rotates inside the limiting groove 52 to position the position of the water inlet pipeline 4.
[0037] Working principle of the utility model: The rotary cylinder 21 rotates the metering hopper 3 to the upper side of the recovery barrel 7, and the excess admixture in the metering hopper 3 drips into the recovery barrel 7 for recycling of the admixture. Then, the metering hopper 3 is rotated to the upper side of the sewage discharge barrel 6. At this time, the water inlet pipe 4 sprays water flow into the interior of the metering hopper 3 through the high-pressure nozzle 42 to wash the interior of the metering hopper 3, avoiding the long-term stay of the admixture in the metering hopper 3, reducing the corrosion of the admixture to the metering hopper 3, improving the use safety of the metering hopper 3, ensuring the accuracy of the admixture, and improving the quality of concrete production.
[0038] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the utility model claimed.
Claims
1. A safety device for metering admixtures in a concrete mixing plant, comprising a mixing barrel (1), characterized in that: A support frame (2) is fixedly connected to the side of the mixing barrel (1), and a recovery barrel (7) and a sewage barrel (6) are fixedly connected to the left and right sides of the support frame (2), respectively. A rotating cylinder (21) is fixedly installed on the upper side of the support frame (2). A feed hole (11) is opened on the upper surface of the mixing barrel (1), and a metering bucket (3) is arranged on the upper side of the feed hole (11). A cleaning mechanism is arranged on the upper side of the metering bucket (3), and the cleaning mechanism comprises an electric motor (38), a first bevel gear (39), a water inlet pipe (4), a diversion pipe (41), a high-pressure nozzle (42), a second bevel gear (45), and a water delivery pipe (5).
2. A safety device for metering admixtures in a concrete mixing plant according to claim 1, characterized in that: The lower end of the measuring hopper (3) is fixedly connected to a material discharge pipe (31), an electric valve (32) is provided in the middle of the material discharge pipe (31), and a material feeding hole (35) is provided on the upper surface of the measuring hopper (3).
3. A safety device for metering admixtures in a concrete mixing plant according to claim 2, characterized in that: A fixing frame (33) is fixedly connected to the side of the discharge pipe (31), a support rod (34) is fixedly connected to the side of the fixing frame (33), and one end of the support rod (34) away from the fixing frame (33) is fixedly connected to the output end of the rotary cylinder (21).
4. A safety device for metering admixtures in a concrete mixing plant according to claim 1, characterized in that: A positioning block (36) is fixedly connected to the upper surface of the measuring bucket (3), a positioning groove (37) is provided on the inner wall of the positioning block (36), the water inlet pipe (4) is rotatably connected to the positioning block (36), a positioning ring (43) is fixedly connected to the surface of the water inlet pipe (4), and the positioning ring (43) is rotatably connected to the positioning groove (37).
5. A safety device for metering admixtures in a concrete mixing plant according to claim 1, characterized in that: The electric motor (38) is fixedly mounted on the upper surface of the metering hopper (3), the first bevel gear (39) is fixedly connected to the output end of the electric motor (38), the second bevel gear (45) is fixedly connected to the surface of the water inlet pipe (4), and the first bevel gear (39) is meshingly connected to the second bevel gear (45).
6. A safety device for metering admixtures in a concrete mixing plant according to claim 1, characterized in that: The lower end of the water delivery pipeline (5) is fixedly connected to a limit block (51), the inner wall of the limit block (51) is provided with a limit groove (52), the upper end of the water inlet pipeline (4) is fixedly connected to a limit ring (44), the water inlet pipeline (4) is rotatably connected to the limit block (51), and the limit ring (44) is rotatably connected to the limit groove (52).
7. A safety device for metering admixtures in a concrete mixing plant according to claim 1, characterized in that: The diversion pipe (41) is fixedly connected to the lower end of the water inlet pipe (4), and a plurality of groups of high-pressure nozzles (42) are provided. The plurality of groups of high-pressure nozzles (42) are symmetrically distributed on the front and rear sides of the diversion pipe (41).
8. A safety device for metering admixtures in a concrete mixing plant according to claim 1, characterized in that: The upper end of the sewage discharge barrel (6) is fixedly connected to a sewage discharge bucket (61), and the upper end of the recovery barrel (7) is fixedly connected to a recovery bucket (71).