Device for testing use amount of coarse aggregate in concrete mixture

Abstract

The utility model relates to the technical field of building material detection, in particular to a device for testing the use amount of coarse aggregate in a concrete mixture, which is characterized in that a screen barrel is rotatably connected in a cleaning tank, the screen barrel comprises a discharge port, a plurality of holes are formed in the periphery of the screen barrel, and the cleaning tank is provided with a water inlet and a discharge port; the wastewater treatment mechanism comprises a sedimentation tank connected with the outlet, the bottom of the sedimentation tank is provided with a filter assembly, and the bottom of the filter assembly is provided with a water outlet; the water flow control mechanism comprises a pipe body connected between the water inlet and the water outlet, and a circulating pump arranged on the pipe body; a cleaning assembly is arranged on the periphery of the screen barrel and comprises a plurality of cleaning needles which correspond to the holes in position and can oppositely stretch into or be away from the holes, and a telescopic driving piece for driving the cleaning needles. The concrete mixture is contained in the screen barrel, the water flow control mechanism conveys water flow in a circulating mode, the filtering assembly filters waste water, the cleaning needle cleans the screen barrel, and therefore smooth water flow of holes is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind building material detection, in particular to a device for testing the amount of coarse aggregate in a concrete mixture. Background Art

[0002] During concrete preparation, coarse aggregate (such as crushed stone and gravel) is an essential component of the concrete mix. Its quality and quantity directly impact the strength, durability, and performance of concrete. Accurately measuring and controlling the amount of coarse aggregate in the concrete mix is ​​crucial for ensuring concrete quality. Water washing is a common method for testing the amount of coarse aggregate in concrete mixes. This method involves washing the coarse aggregate with water to remove fine dust and other impurities.

[0003] However, in actual operation, when coarse aggregate and fine aggregate are mixed and cleaned, the coarse aggregate and fine aggregate often clog the holes in the cleaning tank. This blockage will lead to a decrease in water flow rate, a decrease in cleaning efficiency, and affect the purity of the coarse aggregate after cleaning, thereby affecting the final quality of the concrete mixture.

[0004] Therefore, in light of these challenges, the inventors, drawing on their extensive practical experience and expertise in the engineering applications of similar products over the years, have actively conducted research and innovation to ensure that coarse and fine aggregates are not easily clogged during the cleaning process and to accurately measure the amount of coarse aggregate in the concrete mix, thereby improving the quality of concrete preparation and construction efficiency. This device should not only have high measurement accuracy but also operate stably in complex construction environments to meet the high standards of modern concrete engineering. Utility Model Content

[0005] In view of at least one of the above technical problems, the utility model provides a device for testing the amount of coarse aggregate in a concrete mixture, which adopts a structural improvement of a cleaning component to achieve smooth water flow in the hole.

[0006] According to a first aspect of the present invention, there is provided a device for testing the amount of coarse aggregate in a concrete mixture, comprising:

[0007] A cleaning tank, wherein a screen cylinder is rotatably connected to the inside of the cleaning tank, the screen cylinder includes a discharge port, the outer periphery of the screen cylinder has a plurality of holes, and the cleaning tank also has a water inlet and a discharge port;

[0008] The wastewater treatment mechanism includes a sedimentation tank connected to the discharge port, a filter assembly is provided at the bottom of the sedimentation tank, and a water outlet is also provided at the bottom of the filter assembly;

[0009] The water flow control mechanism includes a pipe body connected between the water inlet and the water outlet, and a circulation pump arranged on the pipe body;

[0010] The outer periphery of the screen cylinder is also provided with a cleaning assembly, comprising a plurality of cleaning needles which are arranged corresponding to the positions of the holes and can extend relatively into or away from the holes, and a telescopic driving member for driving the cleaning needles.

[0011] In some embodiments of the present invention, the discharge outlet also has a switch door assembly, including a seal fixed to the outer periphery of the discharge outlet, a door panel arranged at the discharge outlet, the door panel is sealed with the seal when closed, and a switch door drive component that drives the door panel to open and close relative to each other.

[0012] In some embodiments of the present invention, the bottom of the cleaning tank is tilted, and the height of each part of the bottom of the cleaning tank is higher than the height of the discharge outlet.

[0013] In some embodiments of the present invention, a rotating shaft is fixedly connected to the center of the bottom of the screen cylinder, one end of the rotating shaft is fixedly connected to the screen cylinder, and the other end is connected to a rotating drive member, a bearing seat is sleeved on the rotating shaft, the outer ring of the bearing seat is fixedly connected to the cleaning tank, and the inner ring of the bearing seat is fixedly connected to the rotating shaft.

[0014] In some embodiments of the present invention, the rotating shaft further has an encoder.

[0015] In some embodiments of the present invention, the telescopic drive member is fixedly connected to the cleaning tank, a telescopic arm is fixedly connected to the telescopic drive member at one end, the other end of the telescopic arm is fixedly connected to a telescopic plate, and the cleaning needle is fixedly connected to the telescopic plate.

[0016] In some embodiments of the present invention, the diameter of the cleaning needle is smaller than the diameter of the hole.

[0017] In some embodiments of the present invention, the sedimentation tank further has a discharge port, which is arranged between the discharge port and the filter assembly.

[0018] In some embodiments of the present invention, the water inlet is connected to at least one nozzle, and the nozzle is arranged toward the screen cylinder.

[0019] In some embodiments of the present invention, the sedimentation tank further has a vibration component.

[0020] The beneficial effects of the present invention are as follows: the present invention designs cleaning needles and cleaning drive parts corresponding to the hole positions on the screen cylinder, which can effectively prevent the problem of coarse aggregate and fine aggregate clogging the holes during the cleaning process, and keeps the water flow smooth by timely cleaning the holes in the screen cylinder; effectively filters waste water through the sedimentation tank and the filter assembly, reduces pollution to the environment, and realizes the recycling of water resources; stably controls the water flow through the circulating pump, realizes the automation of the device, reduces the complexity of manual operation, and improves construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic diagram of the structure of a device for testing the amount of coarse aggregate in a concrete mixture in an embodiment of the present utility model;

[0023] Figure 2 This is a schematic structural diagram of a cleaning tank in a device for testing the amount of coarse aggregate in a concrete mixture according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic structural diagram of the cleaning component in the initial state of the device for testing the amount of coarse aggregate in a concrete mixture according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic structural diagram of a cleaning component in a device for testing the amount of coarse aggregate in a concrete mixture according to an embodiment of the present invention;

[0026] Figure 5 This is a schematic structural diagram of a screen cylinder in a device for testing the amount of coarse aggregate in a concrete mixture according to an embodiment of the present invention;

[0027] Figure 6 This is a schematic structural diagram of the switch door assembly in a device for testing the amount of coarse aggregate in a concrete mixture in an embodiment of the present utility model. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art in the field of the present invention. The terms used in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items.

[0031] like Figures 1 to 6 The device for testing the amount of coarse aggregate in concrete mixtures shown includes: a cleaning tank 1, a wastewater treatment mechanism 2 and a water flow control mechanism.

[0032] The cleaning tank 1 is internally connected to a screen cylinder 11, which includes a discharge port 11a and a plurality of holes 11b on the periphery of the screen cylinder 11. The cleaning tank 1 also has a water inlet 12 and a discharge port 13. Figure 1 As shown, when the weight of coarse aggregate in the concrete mixture is tested, concrete is placed into the screen cylinder 11 through the discharge port 11a, water is injected into the cleaning tank 1 through the water inlet 12, and after cleaning, the waste water is discharged through the discharge port 13.

[0033] The wastewater treatment mechanism 2 includes a sedimentation tank 21 connected to the discharge port 13. A filter assembly 22 is provided at the bottom of the sedimentation tank 21. The filter assembly 22 also has a water outlet 23 at the bottom. Figure 1 As shown, after cleaning, concrete, cement, fine aggregate and other impurities are mixed with water and flow into the sedimentation tank 21. The wastewater is filtered through the filter component 22 in the sedimentation tank 21, and the filtered water flows to the outlet 23. The cement and fine aggregate left after filtration float on the upper end of the filter component 22.

[0034] The water flow control mechanism includes a pipe body 31 connected between the water inlet 12 and the water outlet 23, and a circulation pump 32 provided on the pipe body 31. Figure 1 As shown, the filtered wastewater is circulated to the water inlet 12 by a circulation pump 32, and then enters the cleaning tank 1 to clean the coarse aggregate. By recycling the wastewater, the waste of water resources can be reduced.

[0035] The outer periphery of the screen cylinder 11 also has a cleaning assembly 14, which includes a plurality of cleaning needles 14a arranged corresponding to the positions of the holes 11b and capable of relatively extending into or away from the holes 11b, and a telescopic driving member 14b for driving the cleaning needles 14a. During use of the present invention, since holes 11b may be blocked by coarse and fine aggregate, in order to keep holes 11b unobstructed, the cleaning needles 14a are used to extend into the holes 11b to push the blocked aggregate into the screen cylinder 11, and then clean it, thereby improving cleaning efficiency.

[0036] The specific working steps of the device for testing the amount of coarse aggregate in the concrete mixture in the present invention are as follows: first, the concrete mixture to be tested is put into the screen cylinder 11 from the discharge port 11a of the screen cylinder 11; water is injected into the cleaning tank 1, and the cleaning device is started to clean the concrete mixture; during the cleaning process, the coarse aggregate and the water flow are continuously turned and rubbed inside the screen cylinder 11, and the fine dust and impurities are discharged from the screen cylinder 11 through the screen holes 11b with the water flow; in order to prevent the screen holes 11b from being blocked by fine aggregate or impurities during the cleaning process, the cleaning component 14 will be cleaned according to the cleaning process. During the washing process, the sieve holes 11b are blocked by using a cleaning needle 14a, which is driven by the telescopic driving member 14b to regularly extend into or away from the holes 11b to clean the holes 11b, thereby ensuring smooth water flow and maintaining cleaning efficiency. The cleaned wastewater and impurities flow into the sedimentation tank 21 through the discharge port 13. In the sedimentation tank 21, the filter component 22 further filters the wastewater in the sedimentation tank 21. The filtered water is discharged through the water outlet 23 to the pipe body 31 and is re-drawn into the cleaning tank 1 by the circulation pump 32 to continue the cleaning cycle until the coarse aggregate is cleaned.

[0037] The utility model designs a cleaning needle 14a and a cleaning drive member corresponding to the position of the hole 11b on the screen cylinder 11, which can effectively prevent the problem of coarse aggregate and fine aggregate clogging the hole 11b during the cleaning process, and keeps the water flow smooth by timely cleaning the holes 11b of the screen cylinder 11; effectively filters waste water through the sedimentation tank 21 and the filter assembly 22, reduces pollution to the environment, and realizes the recycling of water resources; and stably controls the water flow through the circulation pump 32, realizes the automation of the device, reduces the complexity of manual operation, and improves construction efficiency.

[0038] In some embodiments of the present invention, the outlet 13 is further provided with a switch door assembly 15, comprising a sealing member 15a fixed to the outer periphery of the outlet 13, a door panel 15b provided at the outlet 13, the door panel 15b being sealed with the sealing member 15a when closed, and a switch door driving member for driving the door panel 15b to open and close relative to the sealing member 15a. Figure 6As shown, by using door panel 15b and its drive assembly at outlet 13, the operator can precisely control the opening and closing of outlet 13, thereby effectively controlling the discharge flow of wastewater during the cleaning process. This maintains an appropriate water level and flow rate during the cleaning process, further optimizing the cleaning effect. When door panel 15b is closed, seal 15a fits tightly against door panel 15b, ensuring a tight seal at outlet 13. During the cleaning process, outlet 13 can be flexibly opened or closed as needed to prevent excessive wastewater from being discharged before the cleaning process is complete.

[0039] like Figure 1 、 Figure 2 As shown, to better drain the mixture of water, cement, fine aggregate, and other impurities in cleaning tank 1 into sedimentation tank 21, the bottom of cleaning tank 1 is tilted, with all bottom sections located higher than outlet 13. The tilted bottom of cleaning tank 1 utilizes gravity to allow wastewater and impurities generated during the cleaning process to flow naturally toward outlet 13. This design helps accelerate wastewater discharge, prevents water from stagnating within cleaning tank 1, and improves the efficiency of the entire cleaning process.

[0040] In order to make the fine aggregate and impurities inside the screen cylinder 11 be better discharged after cleaning, Figure 2 、 Figure 5 As shown, a rotating shaft 11c is fixedly connected to the center of the bottom of the screen cylinder 11. One end of the rotating shaft 11c is fixedly connected to the screen cylinder 11, and the other end is connected to a rotating drive member 11d. A bearing seat 11e is sleeved on the rotating shaft 11c. The outer ring 11e1 of the bearing seat 11e is fixedly connected to the cleaning tank 1, and the inner ring 11e2 of the bearing seat 11e is fixedly connected to the rotating shaft 11c. By providing the bearing seat 11e on the rotating shaft 11c, the friction between the shaft and the tank can be effectively reduced during the rotation process, ensuring that the screen cylinder 11 rotates smoothly and stably under the action of the rotating drive member 11d. The screen cylinder 11 rotates evenly under the drive of the rotating shaft 11c, so that the coarse aggregate is evenly turned and rubbed inside the screen cylinder 11, thereby improving the uniformity and thoroughness of the cleaning. After the coarse aggregate is cleaned, the water in the coarse aggregate can also be dried by rotating the screen cylinder 11.

[0041] The cleaning needle 14a in the cleaning assembly 14 extends into the hole 11b. To ensure that the cleaning needle 14a and the hole 11b are precisely aligned, an encoder is also provided on the rotating shaft 11c. The encoder can monitor the angular displacement and rotation speed of the rotating shaft 11c in real time, thereby accurately controlling the rotation speed and position of the screen cylinder 11.

[0042] like Figure 3 、 Figure 4As shown, the cleaning needle 14a is extended into the hole 11b by the telescopic driving member 14b. The telescopic driving member 14b is fixedly connected to the cleaning tank 1, and a telescopic arm 14c is fixedly connected to the telescopic driving member 14b at one end. The other end of the telescopic arm 14c is fixedly connected to the telescopic plate 14d, and the cleaning needle 14a is fixedly connected to the telescopic plate 14d. The telescopic driving member 14b drives the cleaning needle 14a through the telescopic arm 14c and the telescopic plate 14d, so that the cleaning needle 14a can be flexibly extended and retracted within a certain range. The cleaning needle 14a is fixed to the telescopic plate 14d, and the telescopic plate 14d can drive multiple cleaning needles 14a to work simultaneously, thereby achieving synchronous cleaning of multiple holes 11b of the screen cylinder 11, effectively preventing multiple holes 11b from being blocked at the same time, improving cleaning efficiency, and ensuring the cleaning effect of the aggregate.

[0043] Continue to refer Figure 3 、 Figure 4 As shown, the diameter of the cleaning needle 14a is smaller than the diameter of the hole 11b. Since the diameter of the cleaning needle 14a is smaller than the diameter of the hole 11b, the cleaning needle 14a can effectively avoid direct friction with the edge of the hole 11b when cleaning the blockage in the hole 11b, reducing the wear and deformation of the hole 11b, helping to maintain the integrity and dimensional accuracy of the hole 11b of the screen cylinder 11, and extending the service life of the screen.

[0044] like Figure 1 As shown, sedimentation tank 21 also has a discharge port 24, which is located between discharge port 13 and filter assembly 22. The provision of discharge port 24 allows operators to directly discharge settled impurities and sediment from sedimentation tank 21 without affecting the normal operation of filter assembly 22. Regularly clearing sediment through discharge port 24 can effectively reduce the amount of impurities that filter assembly 22 needs to handle, reduce the risk of clogging and the load on filter assembly 22, and improve its operating efficiency.

[0045] like Figure 1 As shown, at least one nozzle 33 is connected to the water inlet 12 and is positioned toward the screen cylinder 11. The nozzle 33 sprays water directly toward the screen cylinder 11, effectively impacting the coarse aggregate within the cylinder and the screen surface, helping to thoroughly remove fine dust and impurities adhering to the aggregate and screen, thereby improving cleaning effectiveness and efficiency. By concentrating and directing the water flow toward the screen cylinder 11 through the nozzle 33, water resources can be more efficiently utilized, avoiding ineffective scattering and waste of water.

[0046] In some embodiments of the present invention, Figure 1 As shown, the sedimentation tank 21 is further provided with a vibration assembly 25. The vibration assembly 25 can cause the suspended particles and impurities in the sedimentation tank 21 to settle to the bottom more quickly through regular vibration, thereby improving the sedimentation efficiency, separating the impurities in the cleaning water more quickly, and improving the water treatment capacity of the entire cleaning system.

[0047] Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and the specification are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for testing the amount of coarse aggregate in a concrete mixture, characterized in that: include: A cleaning tank, wherein a screen cylinder is rotatably connected to the inside of the cleaning tank, the screen cylinder includes a discharge port, the outer periphery of the screen cylinder has a plurality of holes, and the cleaning tank also has a water inlet and a discharge port; The wastewater treatment mechanism includes a sedimentation tank connected to the discharge port, a filter assembly is provided at the bottom of the sedimentation tank, and a water outlet is also provided at the bottom of the filter assembly; The water flow control mechanism includes a pipe body connected between the water inlet and the water outlet, and a circulation pump arranged on the pipe body; The outer periphery of the screen cylinder is also provided with a cleaning assembly, comprising a plurality of cleaning needles which are arranged corresponding to the positions of the holes and can extend relatively into or away from the holes, and a telescopic driving member for driving the cleaning needles.

2. The device for testing the amount of coarse aggregate in a concrete mixture according to claim 1, characterized in that: The discharge outlet is also provided with a switch door assembly, including a seal fixed to the outer periphery of the discharge outlet, a door panel arranged at the discharge outlet, the door panel being sealed with the seal when closed, and a switch door driving member for driving the door panel to open and close relative to each other.

3. The device for testing the amount of coarse aggregate in a concrete mixture according to claim 1, characterized in that: The bottom of the cleaning tank is tilted, and the height of each part of the bottom of the cleaning tank is higher than the height of the discharge outlet.

4. The device for testing the amount of coarse aggregate in a concrete mixture according to claim 1, characterized in that: A rotating shaft is fixedly connected to the center of the bottom of the screen cylinder, one end of the rotating shaft is fixedly connected to the screen cylinder, and the other end is connected to a rotating drive member. A bearing seat is sleeved on the rotating shaft, the outer ring of the bearing seat is fixedly connected to the cleaning tank, and the inner ring of the bearing seat is fixedly connected to the rotating shaft.

5. The device for testing the amount of coarse aggregate in a concrete mixture according to claim 4, characterized in that: The rotating shaft is also provided with an encoder.

6. The device for testing the amount of coarse aggregate in a concrete mixture according to claim 1, characterized in that: The telescopic driving member is fixedly connected to the cleaning tank, a telescopic arm with one end fixedly connected to the telescopic driving member, the other end of the telescopic arm is fixedly connected to a telescopic plate, and the cleaning needle is fixedly connected to the telescopic plate.

7. The device for testing the amount of coarse aggregate in a concrete mixture according to claim 1, characterized in that: The cleaning needle has a diameter smaller than the hole diameter.

8. The device for testing the amount of coarse aggregate in a concrete mixture according to claim 1, characterized in that: The sedimentation tank also has a discharge port, which is arranged between the discharge port and the filter assembly.

9. The device for testing the amount of coarse aggregate in a concrete mixture according to claim 1, characterized in that: The water inlet is connected to at least one nozzle, and the nozzle is arranged toward the screen cylinder.

10. The device for testing the amount of coarse aggregate in a concrete mixture according to claim 1, characterized in that: The sedimentation tank is also provided with a vibration component.

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