CN209699546U - An aggregate processing device for recycled concrete - Google Patents
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- CN209699546U CN209699546U CN201920154080.4U CN201920154080U CN209699546U CN 209699546 U CN209699546 U CN 209699546U CN 201920154080 U CN201920154080 U CN 201920154080U CN 209699546 U CN209699546 U CN 209699546U
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- 230000008929 regeneration Effects 0.000 claims abstract 8
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- 238000001816 cooling Methods 0.000 abstract description 11
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- 238000011068 loading method Methods 0.000 description 16
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- 239000011083 cement mortar Substances 0.000 description 4
- 210000000988 bone and bone Anatomy 0.000 description 3
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- 239000010959 steel Substances 0.000 description 2
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- 238000004140 cleaning Methods 0.000 description 1
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Abstract
Description
技术领域technical field
本实用新型涉及再生混凝土的加工，具体涉及一种再生混凝土的骨料加工装置。The utility model relates to the processing of recycled concrete, in particular to an aggregate processing device for recycled concrete.
背景技术Background technique
混凝土内包含有砂石、水泥、水等物质，而再生混凝土则是将废弃混凝土块经过破碎、清洗与分级后，按一定比例与级配混合，部分或全部代替砂石等天然集料，再加入水泥、水等配制而成的新混凝土。因此，制备再生混凝土需要把基体混凝土中分离出来的砂石作为再生骨料。而仅仅通过简单破碎和筛分工艺制备的再生骨料颗粒棱角多、表面粗糙、组分中还含有硬化水泥砂浆，再加上混凝土块在破碎过程中因损伤累积在内部造成大量微裂纹，导致再生骨料自身的孔隙率大、吸水率大、密实体积小、筒压强度低。Concrete contains sand, cement, water and other substances, while recycled concrete is to mix waste concrete blocks with a certain proportion and grade after crushing, cleaning and grading, to partially or completely replace natural aggregates such as sand and gravel, and then New concrete prepared by adding cement, water, etc. Therefore, the preparation of recycled concrete requires the sand and gravel separated from the matrix concrete as recycled aggregate. However, the recycled aggregate particles prepared by simple crushing and screening process have many edges and corners, rough surface, and hardened cement mortar in the components. In addition, a large number of microcracks are caused by the accumulation of damage in the concrete block during the crushing process, resulting in The recycled aggregate itself has large porosity, high water absorption, small compact volume, and low cylinder compressive strength.
目前对于再生骨料的改性强化处理，采用的是加热研磨法，即将初步破碎后的混凝土块经过300℃-400℃的加热处理后，使水泥石脱水、脆化，在保证骨料不会被粉碎的条件下，对其进行冲击和研磨处理，实现有效除去再生骨料中的水泥石残余物。骨料在研磨处理后需要进行冷却，目前的冷却方法分为自然冷却和喷水冷却两种。自然冷却的速度太慢，导致生产效率低，但是不会影响骨料的强度；喷水冷却速度快，效率高，但是冷却水直接喷洒到高温骨料上的冷却方式过于剧烈，会导致再生骨料的强度和性能受到影响，并且还会浪费水资源。At present, for the modification and strengthening treatment of recycled aggregate, the heating and grinding method is adopted, that is, the concrete block after the initial crushing is heated at 300°C-400°C to dehydrate and embrittle the cement stone, and ensure that the aggregate will not Under the condition of being pulverized, it is impacted and ground to realize the effective removal of cement stone residues in the recycled aggregate. The aggregate needs to be cooled after grinding. The current cooling methods are divided into two types: natural cooling and water spray cooling. The speed of natural cooling is too slow, resulting in low production efficiency, but it will not affect the strength of the aggregate; the speed of water spray cooling is fast and the efficiency is high, but the cooling method of directly spraying cooling water on the high-temperature aggregate is too violent, which will lead to regenerated bone The strength and performance of the material are affected, and water resources are wasted.
实用新型内容Utility model content
为了解决上述现有技术存在的问题，本实用新型目的在于提供一种再生混凝土的骨料加工装置。其优点在于，本实用新型通过不断循环地对部分骨料进行高温研磨，然后重新混合，使冷却效果显著，同时可让整体的骨料逐渐达到较好的品质，提高再生骨料的质量。In order to solve the above-mentioned problems in the prior art, the purpose of the utility model is to provide an aggregate processing device for recycled concrete. The advantage is that the utility model continuously and circularly grinds part of the aggregate at high temperature, and then remixes, so that the cooling effect is remarkable, and at the same time, the overall aggregate can gradually reach a better quality, and the quality of the recycled aggregate can be improved.
本实用新型所述的一种再生混凝土的骨料加工装置，包括混合罐体，所述的混合罐体上部敞开，所述的混合罐体内设有研磨罐体，所述的研磨罐体上下与混合罐体相连通，且所述的研磨罐体的进料口面积小于混合罐体的进料口面积；所述的混合罐体底部设有搅拌机构，所述的混合罐体底部一侧还设有出料口，所述的出料口处设有载料箱，所述的载料箱上设有吊臂，所述的吊臂一侧对应混合罐体的上部开口处设有倾倒机构。A recycled concrete aggregate processing device described in the utility model comprises a mixing tank body, the upper part of which is open, and a grinding tank body is arranged in the mixing tank body, and the grinding tank body is connected to the top and bottom of the grinding tank body The mixing tanks are connected, and the area of the feeding port of the grinding tank is smaller than the area of the feeding port of the mixing tank; the bottom of the mixing tank is provided with a stirring mechanism, and one side of the bottom of the mixing tank is also There is a discharge port, the discharge port is provided with a loading box, the loading box is provided with a boom, and one side of the boom is provided with a dumping mechanism corresponding to the upper opening of the mixing tank .
优选地，所述的研磨罐体包括外筒和套接在外筒内的内筒，所述的内筒上下与混合罐体相连通，所述的内筒中插设有研磨棒，所述的外筒的内壁设有加热丝，所述的外筒外层设有隔热层。Preferably, the grinding tank includes an outer cylinder and an inner cylinder sleeved in the outer cylinder, the inner cylinder communicates with the mixing tank up and down, a grinding rod is inserted in the inner cylinder, and the outer cylinder The inner wall of the cylinder is provided with a heating wire, and the outer layer of the outer cylinder is provided with a heat insulation layer.
优选地，所述的外筒内壁和内筒外壁之间具有空间，所述的内筒侧壁上设有多个过滤孔，所述的外筒底部通过排污管与混合罐体的外部连通。Preferably, there is a space between the inner wall of the outer cylinder and the outer wall of the inner cylinder, a plurality of filter holes are provided on the side wall of the inner cylinder, and the bottom of the outer cylinder communicates with the outside of the mixing tank through a sewage pipe.
优选地，所述的搅拌机构包括用于把骨料推向出料口的螺旋杆以及驱动电机，所述的螺旋杆横置于混合罐体的底部，所述的螺旋杆与出料口之间留有空隙。Preferably, the stirring mechanism includes a screw rod and a driving motor for pushing the aggregate to the discharge port, the screw rod is placed horizontally on the bottom of the mixing tank, and the distance between the screw rod and the discharge port is There is a gap between them.
优选地，所述的混合罐体内还设有多块倾斜布置的隔板，多块所述的隔板形成连通研磨罐体底部至搅拌机构远离出料口一端的通道。Preferably, the mixing tank is further provided with a plurality of inclined partitions, and the plurality of partitions form a channel connecting the bottom of the grinding tank to the end of the stirring mechanism away from the discharge port.
优选地，所述的吊臂包括支杆和动滑轮组，所述的动滑轮组设有吊钩，所述的吊钩与载料箱连接，所述的支杆顶端设有收放卷机，所述的收放卷机通过钢丝绳与动滑轮组连接。Preferably, the boom includes a pole and a movable pulley block, the movable pulley block is provided with a hook, the hook is connected to the loading box, and the top of the pole is provided with a rewinding and unwinding machine. The above-mentioned rewinding and unwinding machine is connected with the movable pulley block through a steel wire rope.
优选地，所述的倾倒机构包括一端与支杆顶端连接的摆臂，所述的摆臂另一端铰接有连杆，所述的连杆远离摆臂的一端设有钩头，所述的载料箱底部设有与钩头相适配的凹槽。Preferably, the dumping mechanism includes a swing arm with one end connected to the top of the pole, the other end of the swing arm is hinged with a connecting rod, and the end of the connecting rod far away from the swing arm is provided with a hook head. The bottom of the material box is provided with a groove suitable for the hook head.
本实用新型所述的一种再生混凝土的骨料加工装置，其优点在于，本实用新型通过不断循环地对部分骨料进行高温研磨，然后重新混合，使冷却效果显著，同时可让整体的骨料逐渐达到较好的品质，提高再生骨料的质量。The aggregate processing device for recycled concrete described in the utility model has the advantage that the utility model performs high-temperature grinding on part of the aggregates in a continuous cycle, and then remixes, so that the cooling effect is remarkable, and at the same time, the overall bone The raw material gradually reaches a better quality and improves the quality of the recycled aggregate.
本实用新型通过研磨罐体进行高温研磨，使部分骨料得到改性强化，然后在混合罐体中与未加工的骨料进行混合，加工过的骨料得以快速降温，再通过吊臂和倾倒机构，把抽取出来的部分骨料再次进行高温研磨，如此循环反复，待到抽取的骨料达到一定的强度要求，则可用于再生混凝土的制作。该过程对骨料高温研磨后能快速自然冷却，保证了骨料加工的质量，而且节约能源。The utility model carries out high-temperature grinding through the grinding tank body, so that part of the aggregate is modified and strengthened, and then mixed with unprocessed aggregate in the mixing tank body, the processed aggregate can be cooled rapidly, and then passed through the boom and dumped Mechanism, the extracted aggregates are subjected to high-temperature grinding again, and the cycle is repeated. When the extracted aggregates reach a certain strength requirement, they can be used for the production of recycled concrete. This process can quickly and naturally cool the aggregate after high-temperature grinding, which ensures the quality of aggregate processing and saves energy.
本实用新型还通过螺旋杆和隔板等的设置，使加工后的骨料得到充分的流动以及与未加工骨料的混合，加快骨料自然冷却的速度。而抽取出来的骨料均匀混合，保证抽检的可靠性。利用吊臂以及倾倒机构使骨料能从下方运到上方进行新一轮的循环，该结构更加稳定，减少安全隐患。The utility model also enables the processed aggregate to flow sufficiently and mix with the unprocessed aggregate through the arrangement of the screw rod and the separator, so as to speed up the natural cooling speed of the aggregate. The extracted aggregate is evenly mixed to ensure the reliability of sampling inspection. Using the boom and dumping mechanism, the aggregate can be transported from the bottom to the top for a new round of circulation. This structure is more stable and reduces potential safety hazards.
附图说明Description of drawings
图1是本实用新型的结构示意图；Fig. 1 is the structural representation of the utility model;
图2是本实用新型的研磨罐体的放大示意图；Fig. 2 is the enlarged schematic view of the grinding tank body of the present utility model;
图3是本实用新型的吊臂和倾倒机构的侧视图。Fig. 3 is a side view of the boom and dumping mechanism of the present invention.
附图标记说明：1-混合罐体；11-出料口；12-隔板；2-研磨罐体；21-外筒；211-加热丝；212-隔热层；213-排污管；22-内筒；221-研磨棒；222-过滤孔；3-搅拌机构；31-螺旋杆；32-驱动电机；4-载料箱；41-凹槽；5-吊臂；51-支杆；52-动滑轮组；53-吊钩；54-收放卷机；6-倾倒机构；61-摆臂；62-连杆；63-钩头。Description of reference signs: 1-mixing tank; 11-discharge port; 12-baffle; 2-grinding tank; 21-outer cylinder; 211-heating wire; 212-heat insulation layer; -inner cylinder; 221-grinding rod; 222-filter hole; 3-stirring mechanism; 31-screw rod; 32-drive motor; 4-loading box; 41-groove; 52-moving pulley block; 53-hook; 54-winding and unwinding machine; 6-dumping mechanism; 61-swing arm; 62-connecting rod; 63-hook head.
具体实施方式Detailed ways
如图1至图3所示，本实用新型所述的一种再生混凝土的骨料加工装置，包括混合罐体1，混合罐体1上部敞开，混合罐体1内设有研磨罐体2，研磨罐体2上下与混合罐体1相连通，且研磨罐体2的进料口面积小于混合罐体1的进料口面积；混合罐体1底部设有搅拌机构3，混合罐体1底部一侧还设有出料口11，出料口11处设有载料箱4，载料箱4上设有吊臂5，吊臂5一侧对应混合罐体1的上部开口处设有倾倒机构6。本实用新型所述的一种再生混凝土的骨料加工装置，其优点在于，本实用新型通过不断循环地对部分骨料进行高温研磨，然后重新混合，使冷却效果显著，同时可让整体的骨料逐渐达到较好的品质，提高再生骨料的质量。As shown in Fig. 1 to Fig. 3, a kind of recycled concrete aggregate processing device described in the utility model includes a mixing tank body 1, the upper part of which is open, and a grinding tank body 2 is arranged in the mixing tank body 1, The grinding tank body 2 is connected with the mixing tank body 1 up and down, and the feeding port area of the grinding tank body 2 is smaller than the feeding port area of the mixing tank body 1; One side is also provided with discharge port 11, and discharge port 11 is provided with loading box 4, and loading box 4 is provided with boom 5, and the upper opening of boom 5 side corresponding mixing tank body 1 is provided with topple over. Institution 6. The aggregate processing device for recycled concrete described in the utility model has the advantage that the utility model performs high-temperature grinding on part of the aggregates in a continuous cycle, and then remixes, so that the cooling effect is remarkable, and at the same time, the overall bone The raw material gradually reaches a better quality and improves the quality of the recycled aggregate.
本实用新型通过研磨罐体2进行高温研磨，使部分骨料得到改性强化，然后在混合罐体1中与未加工的骨料进行混合，加工过的骨料得以快速降温，再通过吊臂5和倾倒机构6，把抽取出来的部分骨料再次进行高温研磨，这些骨料则得到一定程度的预热，高温研磨效果更好。如此循环反复后，待到抽取的骨料达到一定的强度要求，则可用于再生混凝土的制作。该过程对骨料高温研磨后能快速自然冷却，保证了骨料加工的质量，而且无需对所有的骨料进行加工，只要达到一定的程度，抽样检测的骨料达到建筑要求即可，大大节约高温研磨所需的能源。The utility model carries out high-temperature grinding through the grinding tank body 2, so that part of the aggregate is modified and strengthened, and then mixed with the unprocessed aggregate in the mixing tank body 1, the processed aggregate can be cooled rapidly, and then passed through the boom 5 and the dumping mechanism 6, the extracted part of the aggregate is subjected to high-temperature grinding again, and these aggregates are preheated to a certain extent, and the high-temperature grinding effect is better. After this cycle is repeated, the extracted aggregate can be used to make recycled concrete when it reaches a certain strength requirement. This process can quickly and naturally cool the aggregate after high-temperature grinding, which ensures the quality of the aggregate processing, and does not need to process all the aggregate. As long as it reaches a certain level, the aggregate for sampling inspection can meet the construction requirements, which greatly saves Energy required for high temperature grinding.
在本实施例中，研磨罐体2包括外筒21和套接在外筒21内的内筒22，内筒22上下与混合罐体1相连通，内筒22中插设有研磨棒221，外筒21的内壁设有加热丝211，外筒21外层设有隔热层212。研磨棒221可由上部延伸出去的电机带动旋转，从而对内筒22中的骨料进行研磨，而外筒21的加热丝211则提供300℃-400℃的高温，以此对该部分骨料进行高温研磨，打磨掉混凝土块的棱角等，并分离出水泥砂浆，水泥砂浆可在后期分离粗骨料和细骨料时去除。此外，在研磨罐体2中，外筒21和内筒22之间留有空隙，内筒22侧壁上设有多个过滤孔222，外筒21底部通过排污管213与混合罐体1的外部连通。利用过滤孔222可在研磨棒221旋转的同时，把分离出来的水泥砂浆分离至外筒21和内筒22之间的空隙，由外筒21底部的排污管213把水泥砂浆排除出去。In this embodiment, the grinding tank 2 includes an outer cylinder 21 and an inner cylinder 22 sleeved in the outer cylinder 21. The inner cylinder 22 communicates with the mixing tank 1 up and down, and a grinding rod 221 is inserted in the inner cylinder 22. The inner wall of the cylinder 21 is provided with a heating wire 211 , and the outer layer of the outer cylinder 21 is provided with a heat insulating layer 212 . The grinding rod 221 can be rotated by the motor extended from the upper part, so as to grind the aggregate in the inner cylinder 22, while the heating wire 211 of the outer cylinder 21 provides a high temperature of 300°C-400°C, so as to grind this part of the aggregate. High-temperature grinding, grinding away the edges and corners of concrete blocks, etc., and separating the cement mortar, which can be removed when the coarse aggregate and fine aggregate are separated in the later stage. In addition, in the grinding tank 2, there is a gap between the outer cylinder 21 and the inner cylinder 22, a plurality of filter holes 222 are provided on the side wall of the inner cylinder 22, and the bottom of the outer cylinder 21 is connected to the bottom of the mixing tank 1 through the sewage pipe 213. External connectivity. The filter hole 222 can separate the separated cement mortar to the gap between the outer cylinder 21 and the inner cylinder 22 while the grinding rod 221 is rotating, and the cement mortar is discharged from the sewage pipe 213 at the bottom of the outer cylinder 21 .
在本实施例中，搅拌机构3包括用于把骨料推向出料口11的螺旋杆31以及驱动电机32，螺旋杆31横置于混合罐体1的底部，螺旋杆31与出料口11之间留有空隙。螺旋杆31为阿基米德螺旋，在底部不断地把骨料向出料口11的方向推动，当出料口11关闭时，骨料在出料口11的一侧堆积，则会因为重力作用重新回到驱动电机32的一侧，形成搅拌和循环。而开启出料口11时，也方便把骨料完全推出混合罐体1,而出料口11的下侧铰接，向外翻转，可搭设在载料箱4的一侧，从而把骨料放到载料箱4中。混合罐体1内还设有多块倾斜布置的隔板12，多块隔板12形成连通研磨罐体2底部至搅拌机构3远离出料口11一端的通道。加热研磨后的骨料经过多块隔板12延长其流动行程，宠儿进一步快速冷却。落到底部后，立刻被螺旋杆31搅拌使其与未加工的骨料进行混合，让出料口11处的抽样检测更具可靠性。In this embodiment, the stirring mechanism 3 includes a screw rod 31 and a drive motor 32 for pushing the aggregate to the discharge port 11. The screw rod 31 is placed horizontally on the bottom of the mixing tank 1. 11 with a gap between them. The screw rod 31 is an Archimedes screw, which continuously pushes the aggregate toward the discharge port 11 at the bottom. Action gets back to the side of drive motor 32 again, forms agitation and circulation. When opening the discharge port 11, it is also convenient to push the aggregate completely out of the mixing tank 1, and the lower side of the discharge port 11 is hinged and turned outwards, and can be set up on one side of the loading box 4, so that the aggregate can be placed into loading box 4. The mixing tank 1 is also provided with a plurality of inclined partitions 12 , which form a channel connecting the bottom of the grinding tank 2 to the end of the stirring mechanism 3 away from the discharge port 11 . The heated and ground aggregate passes through a plurality of separators 12 to extend its flow stroke, and further cools rapidly. After falling to the bottom, it is immediately stirred by the screw rod 31 to mix it with unprocessed aggregate, so that the sampling detection at the discharge port 11 is more reliable.
在本实施例中，载料箱4是通过吊臂5和倾倒机构6完成从入料口11处上升至混合罐体1上部开口处并倾倒物料的操作，而吊臂5包括支杆51和动滑轮组52，动滑轮组52设有吊钩53，吊钩53与载料箱4连接，支杆51顶端设有收放卷机54，收放卷机54通过钢丝绳与动滑轮组52连接。钢丝绳一端固定，另一端绕过动滑轮组52然后连接收放卷机54，收放卷机54则由电机控制并提供动力，通过收放卷钢丝绳，使动滑轮组52上下往复运动，从而带动吊钩53让载料箱4在混合罐体1的上部开口和入料口11之间移动。而倾倒机构6包括一端与支杆51顶端连接的摆臂61，摆臂61另一端铰接有连杆62，连杆62远离摆臂61的一端设有钩头63，载料箱4底部设有与钩头63相适配的凹槽41。当载料箱4移动到开口处需要倾倒时，通过摆臂61让钩头63接近载料箱4的底部，控制吊钩53稍微下移，使载料箱4底部的凹槽41与钩头63配合，然后摆臂61反方向旋转，利用连杆62和钩头63高度的改变，使载料箱4向混合罐体1的开口方向倾倒。此外，为了增加稳定性，如图3所示，吊臂5和倾倒机构6均设置为至少两个。In this embodiment, the loading box 4 is lifted from the material inlet 11 to the upper opening of the mixing tank 1 and dumped by the boom 5 and the dumping mechanism 6, and the boom 5 includes a support rod 51 and Movable pulley block 52, movable pulley block 52 is provided with suspension hook 53, and suspension hook 53 is connected with loading box 4, and pole 51 top is provided with retracting and unwinding machine 54, and retracting and unwinding machine 54 is connected with movable pulley block 52 by wire rope. One end of the wire rope is fixed, and the other end goes around the movable pulley block 52 and then connects to the unwinding and unwinding machine 54. The unwinding and rewinding machine 54 is controlled by a motor and provides power. By rewinding and unwinding the steel wire rope, the movable pulley block 52 reciprocates up and down, thereby driving the hook. 53 allows the loading box 4 to move between the upper opening of the mixing tank body 1 and the feed port 11. And dumping mechanism 6 comprises the swing arm 61 that one end is connected with pole 51 tops, and the other end of swing arm 61 is hinged with connecting rod 62, and connecting rod 62 is provided with hook head 63 far away from the end of swing arm 61, and loading box 4 bottom is provided with Groove 41 adapted to hook head 63 . When the loading box 4 moves to the opening and needs to be dumped, the hook 63 is allowed to approach the bottom of the loading box 4 through the swing arm 61, and the suspension hook 53 is controlled to move down slightly, so that the groove 41 at the bottom of the loading box 4 is aligned with the hook head. 63, then the swing arm 61 rotates in the opposite direction, and the loading box 4 is dumped towards the opening direction of the mixing tank body 1 by utilizing the change of the height of the connecting rod 62 and the hook head 63. In addition, in order to increase stability, as shown in FIG. 3 , at least two booms 5 and dumping mechanisms 6 are provided.
对于本领域的技术人员来说，可根据以上描述的技术方案以及构思，做出其它各种相应的改变以及形变，而所有的这些改变以及形变都应该属于本实用新型权利要求的保护范围之内。For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and ideas described above, and all these changes and deformations should fall within the protection scope of the claims of the present invention .
Claims (7)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113480216A (en) * | 2021-08-03 | 2021-10-08 | 清华大学 | Waste concrete recycling system and method and product thereof |
| CN113522444A (en) * | 2021-07-23 | 2021-10-22 | 杨奔奔 | Building energy-concerving and environment-protective concrete recovery unit that uses |
| CN113754324A (en) * | 2021-09-27 | 2021-12-07 | 清华大学 | Preparation method and application of recycled cement based on high temperature and carbonization coupling |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113522444A (en) * | 2021-07-23 | 2021-10-22 | 杨奔奔 | Building energy-concerving and environment-protective concrete recovery unit that uses |
| CN113480216A (en) * | 2021-08-03 | 2021-10-08 | 清华大学 | Waste concrete recycling system and method and product thereof |
| CN113754324A (en) * | 2021-09-27 | 2021-12-07 | 清华大学 | Preparation method and application of recycled cement based on high temperature and carbonization coupling |
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