A recycled concrete mixing device
By separating the crushing and mixing processes in the recycled concrete mixing plant and using components such as funnels, screens, and vibrating blocks, the problem of insufficient aggregate pretreatment was solved, thereby improving the uniformity and strength of the aggregate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU SHENGGONG CONSTR CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-29
AI Technical Summary
In existing recycled concrete mixing plants, insufficient pretreatment of aggregates leads to failure to meet strength requirements, and there are also problems such as uneven breakage, mechanical damage, and contamination by impurities.
The crushing and mixing tanks are set up separately, and combined with components such as funnels, screens, vibrating blocks, air chambers, magnets and rubber strips, the cell wall breaking and mixing processes are carried out separately, which enhances the adequacy and error tolerance of the processing and reduces mechanical damage and impurity contamination.
It improves the uniformity and tolerance of aggregate processing, reduces mechanical damage and impurity contamination, and ensures that the strength of recycled concrete meets the specified requirements.
Smart Images
Figure CN224293101U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of concrete preparation technology, specifically a recycled concrete mixing device. Background Technology
[0002] Recycled concrete refers to new concrete made by using recycled aggregates obtained from crushing, washing, and screening construction waste concrete blocks, which partially or completely replace natural aggregates (such as crushed stone and sand). This reduces construction waste landfill, lowers the consumption of natural resources, and promotes a circular economy.
[0003] Currently, some recycled concrete mixing plants may experience uneven breakage due to insufficient aggregate pretreatment, resulting in recycled concrete failing to meet the specified strength requirements.
[0004] Therefore, this utility model provides a recycled concrete mixing device. Utility Model Content
[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A recycled concrete mixing device of this utility model includes a crushing barrel; an inlet is connected to the top of the crushing barrel; a first motor is installed on the top of the crushing barrel; a first rotating rod is fixedly connected to the output end of the first motor; multiple wall-breaking blades are fixedly connected to the side wall of the first rotating rod; a conveying pipe is connected to the bottom of the crushing barrel; a mixing barrel is connected to the other end of the conveying pipe; a second motor is installed on the top of the mixing barrel; a second rotating rod is fixedly connected to the output end of the second motor; a mixing arm is fixedly connected to the side wall of the second rotating rod; and an outlet is connected to the bottom of the mixing barrel. By separately setting the crushing barrel and the mixing barrel, the two processes of wall breaking and mixing are separated, allowing each step to be carried out more thoroughly, reducing the problem of uneven and insufficient aggregate processing; it also increases the tolerance rate in aggregate processing, reducing the difficulty of separating and processing aggregates when problems occur during simultaneous processing.
[0007] Preferably, a funnel is fixedly connected to the end of the feed inlet; a screen is installed in the middle of the funnel; by setting the funnel, on the one hand, the feeding area of the feed inlet is increased, making it easier for materials to enter the crushing barrel and reducing the problem of materials falling outside the crushing barrel. At the same time, the setting of the funnel slows down the feeding speed, reducing the problem of insufficient crushing and mechanical damage caused by excessive material falling speed; the setting of the screen prevents some oversized materials and some impurities from entering the crushing barrel, reducing the crushing difficulties caused by oversized materials and the problem of impurity contamination.
[0008] Preferably, a vibrating block is fixed to the side wall of the funnel; the vibrating block is located close to the screen; the vibrating block drives the screen to vibrate, so that the usable material falling on the screen can better enter the crushing barrel, reducing the mechanical blockage problem caused by material accumulation.
[0009] Preferably, two air chambers are fixedly connected to the side wall of the crushing barrel; an air inlet pipe is connected to the top of the air chamber; multiple exhaust holes are opened on the inner side wall of the crushing barrel; the exhaust holes are correspondingly arranged with the air chambers; by setting up the air chambers, the recycled aggregate can be dried, reducing the impact of its moisture content fluctuation on the strength of recycled concrete, and reducing the problem of insufficient strength of recycled concrete caused by the high porosity and large water absorption fluctuation of the recycled aggregate itself.
[0010] Preferably, a magnet is fixed to the side wall of the stirring arm; the magnet is located in the middle of the stirring arm; by setting the magnet, some steel impurities in the aggregate can be adsorbed, reducing their impact on the recycled aggregate and reducing the problem of material strength not meeting the standard due to impurity contamination.
[0011] Preferably, a rubber strip is fixed to the side wall of the stirring arm; the rubber strip is located between the end of the stirring arm and the inner side wall of the mixing tank; by setting the rubber strip, the residual aggregate on the inner wall of the mixing tank can be scraped off during the mixing operation, reducing the waste caused by material residue, and also reducing the problem of uneven mixing caused by material residue.
[0012] The beneficial effects of this utility model are as follows:
[0013] 1. The recycled concrete mixing device of this utility model separates the crushing and mixing processes by setting up the crushing tank and the mixing tank separately, so that each step can be carried out more fully, reducing the problem of uneven and insufficient aggregate processing; at the same time, it increases the fault tolerance in aggregate processing and reduces the problem of difficulty in separating and processing aggregates when problems occur during simultaneous processing.
[0014] 2. The recycled concrete mixing device of this utility model, through the setting of the funnel, increases the feeding area of the feed inlet, making it easier for materials to enter the crushing barrel and reducing the problem of materials falling outside the crushing barrel. At the same time, the setting of the funnel slows down the feeding speed, reducing the problem of insufficient crushing and mechanical damage caused by excessive material falling speed. The setting of the screen prevents some oversized materials and some impurities from entering the crushing barrel, reducing the crushing difficulties and impurity contamination problems caused by oversized materials. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings.
[0016] Figure 1 This is a perspective view of the present invention;
[0017] Figure 2 This is a cross-sectional view of the crushing barrel of this utility model;
[0018] Figure 3 This is a cross-sectional view of the mixing tank in this utility model;
[0019] Figure 4 This is a schematic diagram of the funnel structure in this utility model;
[0020] Figure 5 This is a schematic diagram of the structure of the air chamber in this utility model;
[0021] Figure 6 This is a schematic diagram of the structure of the stirring arm in this utility model;
[0022] In the diagram: 1. Crushing barrel; 11. Feed inlet; 12. First motor; 13. First rotating rod; 14. Breaking blade; 15. Conveying pipe; 16. Mixing barrel; 17. Second motor; 18. Second rotating rod; 19. Mixing arm; 110. Discharge port; 2. Funnel; 21. Screen; 3. Vibrating block; 4. Air chamber; 41. Air inlet pipe; 42. Exhaust port; 5. Magnet; 6. Rubber strip. Detailed Implementation
[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0024] like Figures 1 to 3As shown in the embodiment of this utility model, a recycled concrete mixing device includes a crushing drum 1; the top of the crushing drum 1 is connected to an inlet 11; a first motor 12 is installed on the top of the crushing drum 1; a first rotating rod 13 is fixedly connected to the output end of the first motor 12; a plurality of wall-breaking blades 14 are fixedly connected to the side wall of the first rotating rod 13; a conveying pipe 15 is connected to the bottom of the crushing drum 1; the other end of the conveying pipe 15 is connected to a mixing drum 16; a second motor 17 is installed on the top of the mixing drum 16; a second rotating rod 18 is fixedly connected to the output end of the second motor 17; a mixing arm 19 is fixedly connected to the side wall of the second rotating rod 18; and an outlet 110 is connected to the bottom of the mixing drum 16. During operation, waste concrete is fed into the mixing drum 16 through the inlet 11. Inside the crushing barrel 1, the first motor 12 is turned on, driving the first rotating rod 13 to rotate, which in turn drives the wall-breaking blade 14 to crush the waste concrete. After crushing, the aggregate enters the mixing barrel 16 through the conveying pipe 15. At this time, the second motor 17 is turned on, driving the second rotating rod 18 to rotate, which in turn drives the mixing arm 19 to mix the aggregate. After mixing, the aggregate is sent out through the discharge port 110 for further processing. By setting the crushing barrel 1 and the mixing barrel 16 separately, the two processes of wall breaking and mixing are separated, allowing each step to be carried out more thoroughly, reducing the problem of uneven and insufficient aggregate processing. At the same time, it also increases the fault tolerance rate in aggregate processing, reducing the problem of difficulty in separating and processing aggregates when problems occur during simultaneous processing.
[0025] like Figure 2 and Figure 4 As shown, a funnel 2 is fixedly connected to the end of the feed inlet 11; a screen 21 is installed in the middle of the funnel 2; when material is fed into the crushing barrel 1 through the feed inlet 11, the funnel 2 increases the feeding area of the crushing barrel 1 and reduces the feeding speed; the screen 21 screens out the material, blocking some oversized materials and some impurities; by setting the funnel 2, on the one hand, the feeding area of the feed inlet 11 is increased, making it easier for the material to enter the crushing barrel 1, reducing the problem of material falling outside the crushing barrel 1; on the other hand, the setting of the funnel 2 slows down the feeding speed, reducing the problem of insufficient crushing and mechanical damage caused by the material falling too fast; the setting of the screen 21 blocks some oversized materials and some impurities from entering the crushing barrel 1, reducing the crushing difficulty and impurity contamination caused by the material size.
[0026] like Figure 2 and Figure 4As shown, a vibrating block 3 is fixedly connected to the side wall of the funnel 2; the vibrating block 3 is located near the screen 21; when the material enters the crushing barrel 1 through the funnel 2 and is screened and filtered on the screen 21, the vibrating block 3 is turned on to make the screen 21 vibrate, so that the usable material falling on the screen 21 can enter the crushing barrel 1 better and reduce blockage; through the setting of the vibrating block 3, it makes the screen 21 vibrate, so that the usable material falling on the screen 21 can enter the crushing barrel 1 better and reduce the mechanical blockage problem caused by material accumulation.
[0027] like Figure 2 and Figure 5 As shown, two air chambers 4 are fixedly connected to the side wall of the crushing barrel 1; an air inlet pipe 41 is connected to the top of the air chamber 4; multiple exhaust holes 42 are opened on the inner side wall of the crushing barrel 1; the exhaust holes 42 are correspondingly arranged with the air chambers 4; during operation, a hot air pump is connected to the air inlet pipe 41, so that hot air enters the air chamber 4 through the air inlet pipe 41 and is discharged into the crushing barrel 1 through the exhaust holes 42, thereby drying the aggregate entering the crushing barrel 1 and reducing the impact of its moisture content fluctuation on strength; through the setting of the air chambers 4, the recycled aggregate can be dried, reducing the impact of its moisture content fluctuation on the strength of recycled concrete, and reducing the problem of insufficient strength of recycled concrete caused by the high porosity and large water absorption fluctuation of the recycled aggregate itself.
[0028] like Figure 3 and Figure 6 As shown, a magnet 5 is fixed to the side wall of the stirring arm 19; the magnet 5 is located in the middle of the stirring arm 19; when the stirring operation is performed, the magnet 5 can adsorb some of the steel impurities in the aggregate, reducing their impact on the recycled aggregate; by setting the magnet 5, some of the steel impurities in the aggregate can be adsorbed, reducing their impact on the recycled aggregate, and reducing the problem of material strength not meeting the standard caused by impurity contamination.
[0029] like Figure 3 and Figure 6 As shown, a rubber strip 6 is fixed to the side wall of the stirring arm 19; the rubber strip 6 is located between the end of the stirring arm 19 and the inner wall of the mixing tank 16; when the stirring operation is performed, the rubber strip 6 contacts the inner wall of the mixing tank 16, which can scrape off the residual aggregate on the inner wall of the mixing tank 16 and reduce material waste; by setting the rubber strip 6, when the stirring operation is performed, the residual aggregate on the inner wall of the mixing tank 16 can be scraped off, reducing the waste caused by material residue, and also reducing the problem of uneven mixing caused by material residue.
[0030] Working principle: During operation, waste concrete is fed into the crushing drum 1 through the feed inlet 11. The first motor 12 is turned on, driving the first rotating rod 13 to rotate, which in turn drives the wall-breaking blade 14 to crush the waste concrete. After crushing, the aggregate enters the mixing drum 16 through the conveying pipe 15. At this time, the second motor 17 is turned on, driving the second rotating rod 18 to rotate, which in turn drives the mixing arm 19 to mix the aggregate. After mixing, the aggregate is sent out through the discharge outlet 110 for further processing. When the material is fed into the crushing drum 1 through the feed inlet 11, the funnel 2 increases the feeding area of the crushing drum 1 while reducing the feeding speed. The screen 21 screens out the material, blocking some oversized materials and some impurities. When the material passes through the funnel... 2. When the aggregate enters the crushing barrel 1 and is screened and filtered on the screen 21, the vibrating block 3 is turned on to make the screen 21 vibrate, so that the usable material falling on the screen 21 can enter the crushing barrel 1 better and reduce blockage. During operation, the hot air pump is connected to the air inlet pipe 41, so that the hot air enters the air chamber 4 through the air inlet pipe 41 and is discharged into the crushing barrel 1 through the exhaust port 42, which dries the aggregate entering the crushing barrel 1 and reduces the impact of its moisture content fluctuation on strength. When the mixing operation is performed, the magnet 5 can adsorb some steel impurities in the aggregate, reducing their impact on the recycled aggregate. When the mixing operation is performed, the rubber strip 6 contacts the inner wall of the mixing barrel 16 and can scrape off the aggregate remaining on the inner wall of the mixing barrel 16, reducing material waste.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A recycled concrete mixing device, characterized in that: The device includes a crushing barrel (1); the top of the crushing barrel (1) is connected to a feed inlet (11); a first motor (12) is installed on the top of the crushing barrel (1); a first rotating rod (13) is fixedly connected to the output end of the first motor (12); a plurality of wall-breaking blades (14) are fixedly connected to the side wall of the first rotating rod (13); a conveying pipe (15) is connected to the bottom of the crushing barrel (1); the other end of the conveying pipe (15) is connected to a mixing barrel (16); a second motor (17) is installed on the top of the mixing barrel (16); a second rotating rod (18) is fixedly connected to the output end of the second motor (17); a stirring arm (19) is fixedly connected to the side wall of the second rotating rod (18); and a discharge port (110) is connected to the bottom of the mixing barrel (16).
2. The recycled concrete mixing device according to claim 1, characterized in that: A funnel (2) is fixedly connected to the end of the feed inlet (11); a screen (21) is installed in the middle of the funnel (2).
3. The recycled concrete mixing device according to claim 2, characterized in that: The side wall of the funnel (2) is fixed with a vibrating block (3); the vibrating block (3) is located near the screen (21).
4. A recycled concrete mixing device according to claim 3, characterized in that: The crushing barrel (1) has two air chambers (4) fixedly connected to its side wall; the top of the air chamber (4) is connected to an air inlet pipe (41); the inner side wall of the crushing barrel (1) has multiple exhaust holes (42); the exhaust holes (42) and the air chambers (4) are arranged correspondingly.
5. A recycled concrete mixing device according to claim 4, characterized in that: A magnet (5) is fixed to the side wall of the stirring arm (19); the magnet (5) is located in the middle of the stirring arm (19).
6. A recycled concrete mixing device according to claim 5, characterized in that: A rubber strip (6) is fixed to the side wall of the stirring arm (19); the rubber strip (6) is located between the end of the stirring arm (19) and the inner side wall of the stirring tank (16).