A production system of dry-mixed mortar by recycling construction waste

Abstract

The application discloses a production system of dry-mixed mortar regenerated by building waste, and belongs to the technical field of building, which comprises a waste collecting bin, a crushing mechanism, a conveying mechanism, a screening mechanism and a mortar preparing mechanism, the waste collecting bin is used for collecting the building waste and conveying the building waste to the crushing mechanism, the crushing mechanism is used for crushing large particles in the building waste and conveying the large particles to the screening mechanism, the screening mechanism is used for screening unqualified particles, and the mortar preparing mechanism is used for preparing building mortar by taking the building waste as aggregate, the efficient crushing is matched with a spraying system to realize clean and stable crushing, the large particles of the building waste are avoided from being mixed into the prepared mortar, and the uniformity of the aggregate of the prepared mortar is ensured through the stable cooperation of the screening system.

Description

Technical Field

[0001] This invention belongs to the field of building technology, specifically a production system for recycled dry-mixed mortar using building waste. Background Technology

[0002] With the continuous expansion of urban and rural infrastructure renovation, housing demolition, and construction projects, the volume of construction waste such as concrete fragments, waste bricks and tiles, and waste sand and gravel generated at construction sites has increased dramatically year by year. The indiscriminate dumping and open-air landfilling of large amounts of construction waste not only occupies land resources but also easily causes environmental problems such as dust pollution and soil erosion. At the same time, the over-exploitation of raw sand and gravel building materials has led to the destruction of mountain vegetation and the depletion of mineral resources, making the problems of resource waste and ecological damage increasingly serious.

[0003] Recycling construction waste into recycled mortar can reduce the amount of solid waste and significantly reduce the consumption of natural aggregates. It has both environmental and economic benefits, and the recycled mortar can also meet the needs of ordinary masonry, plastering and other construction work, with broad application prospects.

[0004] Currently, the existing process for preparing recycled mortar from construction waste still has significant shortcomings. The waste crushing and screening process is not well controlled, and large-particle waste impurities are easily mixed into the finished mortar. Furthermore, the material ratio and mixing process are not reasonable, resulting in poor uniformity of the final mortar material. This directly leads to insufficient strength stability and reduced construction adaptability, which restricts the actual promotion and use of recycled mortar. In addition, reducing dust particle pollution during the process is also crucial. Summary of the Invention

[0005] The technical problem that the invention aims to solve

[0006] The purpose of this invention is to solve the problems of uneven mortar, large particle mixing, and dust pollution in the prior art.

[0007] Technical solution

[0008] To achieve the above objectives, the technical solution provided by the present invention is as follows:

[0009] The present invention discloses a production system for recycled dry-mixed mortar using construction waste, comprising a waste collection bin, a crushing mechanism, a conveying mechanism, a screening mechanism, and a pulping mechanism. The waste collection bin collects construction waste and conveys it to the crushing mechanism. The crushing mechanism crushes large particles in the construction waste and conveys them to the screening mechanism. The screening mechanism filters out unqualified particles. The pulping mechanism uses the construction waste as aggregate to prepare construction mortar.

[0010] Preferably, the waste collection bin includes a collection frame, a bin body, and a flap. The collection frame is a steel structure frame, the bin body is installed on the collection frame, the upper edge of the bin body is provided with a bearing seat, one end of the flap is provided with a collar, the flap collar is rotatably connected to the bearing seat through a rotating shaft, and the flap presses against the inner wall of the bin body.

[0011] Preferably, the crushing mechanism includes a crushing shell, two crushing shafts symmetrically installed inside the crushing shell, a number of circumferentially distributed bosses on the crushing shafts, crushing teeth fitted on the bosses, a crushing motor and a reducer on the outside of the crushing shell, the crushing motor driving the crushing shafts through the reducer, a triangular beam inside the crushing shell located between the two symmetrical crushing shafts, and a frame beam on the outside of the crushing shell, the triangular beam and the frame beam being connected.

[0012] Preferably, the triangular beam is provided with several upward-sloping sharp teeth, which are interleaved with the crushing teeth on the crushing shaft, and the crushing teeth are mounted on the boss by bolts.

[0013] Preferably, the conveying mechanism includes a feeding conveyor and a crushing conveyor. The feeding conveyor is distributed on three sides of the waste collection bin and is used to transport construction waste into the bin. The feeding end of the crushing conveyor is located below the crushing mechanism, and the discharging end of the crushing conveyor is located above the pulping mechanism.

[0014] Preferably, a screening mechanism is provided between the pulping mechanism and the crushed material conveying mechanism. The screening mechanism includes a triangular prism located at the center, a screen plate rotatably connected to the three faces of the triangular prism, a partition plate and a baffle. The screen plate has a fan-shaped structure, and the three screen plates are evenly distributed on the three faces of the triangular prism. The baffle is installed on the side of the screen plate away from the triangular prism, and a partition plate is provided between adjacent screen plates.

[0015] Preferably, one end of the crushing shaft extends outward, and the crushing shaft is provided with several mounting holes. The mounting holes are provided with nozzles. The crushing shaft is hollow, and the end of the crushing shaft that extends outward is provided with a rotary joint. The rotary joint is connected to a water pipe, and the nozzles correspond one-to-one with the crushing teeth.

[0016] Preferably, the breaking teeth are provided with a ring, which is fitted around the nozzle but does not contact the nozzle, and the ring is higher than the nozzle.

[0017] Preferably, the screen plate is equipped with a hydraulic cylinder, which drives the screen plate to oscillate periodically.

[0018] Beneficial effects

[0019] Compared with the prior art, the technical solution provided by this invention has the following advantages:

[0020] (1) The present invention provides a production system for recycled dry-mixed mortar using construction waste. The system uses a high-efficiency crushing combined with a spray system to achieve clean and stable crushing, thereby avoiding the mixing of large-particle construction waste into the mortar preparation.

[0021] (2) The present invention provides a production system for recycled dry-mixed mortar using construction waste. Through the stable coordination of the screening system, the uniformity of aggregates in the subsequent mortar preparation is ensured.

[0022] (3) The present invention provides a production system for recycled dry mortar using construction waste. By installing nozzles on the crushing shaft for 360° spraying, dust pollution is effectively reduced. At the same time, a protective ring is provided to protect the nozzles so that they can be used for a long time. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a production system for recycled dry-mixed mortar using construction waste according to the present invention.

[0024] Figure 2 This is a schematic diagram of the waste collection bin of a production system for recycled dry-mixed mortar using construction waste, according to the present invention.

[0025] Figure 3 This is a side view schematic diagram of the crushing mechanism of a production system for recycled dry-mixed mortar using construction waste according to the present invention.

[0026] Figure 4 This is a schematic diagram of the internal structure of the crushing mechanism in a production system for recycled dry-mixed mortar using construction waste, according to the present invention.

[0027] Figure 5 This is a schematic diagram of the screening mechanism of a production system for recycled dry-mixed mortar using construction waste, according to the present invention.

[0028] Figure 6 This is a schematic diagram of the internal structure of the screening mechanism in a production system for recycled dry-mixed mortar using construction waste, according to the present invention.

[0029] Explanation of markings in the diagram:

[0030] 100. Waste collection bin; 110. Collection rack; 120. Bin body; 121. Shaft seat; 130. Flip plate;

[0031] 200. Crushing mechanism; 210. Crushing shell; 220. Crushing shaft; 230. Crushing teeth; 231. Ring; 240. Crushing motor; 250. Reducer; 260. Triangular beam; 261. Pointed teeth; 270. Frame beam; 280. Nozzle;

[0032] 300. Conveying mechanism; 310. Feeding conveyor; 320. Crushed material conveyor;

[0033] 400. Screening mechanism; 410. Triangular prism; 420. Screening mesh; 430. Divider plate; 440. Baffle plate; 450. Hydraulic cylinder;

[0034] 500. Pulping mechanism;

[0035] 600. Construction waste. Detailed Implementation

[0036] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0037] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0038] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0039] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0040] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0041] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0042] See attached document Figures 1-6 This embodiment of a production system for recycled dry-mixed mortar using construction waste includes a waste collection bin 100, a crushing mechanism 200, a conveying mechanism 300, a screening mechanism 400, and a pulping mechanism 500. The waste collection bin 100 collects construction waste 600 and conveys it to the crushing mechanism 200. The crushing mechanism 200 crushes large particles in the construction waste 600 and conveys them to the screening mechanism 400. The screening mechanism 400 filters out unqualified particles. The pulping mechanism 500 uses the construction waste 600 as aggregate to prepare construction mortar.

[0043] The waste collection bin 100 in this embodiment includes a collection frame 110, a bin body 120, and a flap 130. The collection frame 110 is a steel structure frame, and the bin body 120 is installed on the collection frame 110. A bearing seat 121 is provided at the upper edge of the bin body 120. A collar is provided at one end of the flap 130. The collar of the flap 130 is rotatably connected to the bearing seat 121 through a rotating shaft. The flap 130 presses against the inner wall of the bin body 120. This design protects the bin body 120 by providing the flap 130. When conveying or dumping construction waste 600 into the bin body 120, the impact and damage to the bin body 120 are relatively large due to the large-scale dumping. This design can absorb the impact and damage through the flap 130 to protect the bin body 120. When the flap 130 is damaged and cannot be used, it can be simply flipped out and replaced.

[0044] The crushing mechanism 200 in this embodiment includes a crushing shell 210 and two crushing shafts 220 symmetrically installed inside the crushing shell 210. Each crushing shaft 220 has several circumferentially distributed bosses, with crushing teeth 230 fitted onto the bosses. A crushing motor 240 and a reducer 250 are located outside the crushing shell 210. The crushing motor 240 drives the crushing shafts 220 through the reducer 250. A triangular beam 260 is located inside the crushing shell 210, positioned between the two symmetrical crushing shafts 220. A frame beam 270 is located outside the crushing shell 210, connecting the triangular beam 260 and the frame beam 270. This design ensures that larger particles in the construction waste 600 are crushed by the crushing shafts 220 and the triangular beam 260, preventing them from flowing into the pulping mechanism 500. The frame beam 270 ensures overall structural stability, while the triangular beam 260 reinforces the overall structure and also works in conjunction with the crushing shafts 220 on both sides for crushing. This stable structure reduces jamming and extends service life.

[0045] In this embodiment, the triangular beam 260 is provided with several upward-sloping sharp teeth 261. The sharp teeth 261 and the crushing teeth 230 on the crushing shaft 220 are intersected. The crushing teeth 230 are installed on the boss by bolts. With this design, the construction waste 600 is usually concrete, which is difficult to crush. The sharp teeth 261 and the crushing teeth 230 squeeze each other to crush the core, which improves the damage to the concrete particles and makes them easier to break into smaller particles.

[0046] The conveying mechanism 300 in this embodiment includes a feeding conveyor 310 and a crushing conveyor 320. The feeding conveyor 310 is distributed on three sides of the waste collection bin 100. The feeding conveyor 310 is used to convey construction waste 600 into the bin 120. The feeding end of the crushing conveyor 320 is located below the crushing mechanism 200, and the discharging end of the crushing conveyor 320 is located above the pulping mechanism 500. With this design, when construction waste 600 arrives in piles, it can be divided and conveyed to the bin 120 from different directions, avoiding long-term conveying in one position and causing large local damage. At the same time, it can also serve as a backup structure, that is, if one feeding conveyor 310 fails, another can be used.

[0047] In this embodiment, a screening mechanism 400 is provided between the pulping mechanism 500 and the crushed material conveying 320. The screening mechanism 400 includes a triangular prism 410 located at the center, a screen plate 420 rotatably connected to the three faces of the triangular prism 410, a partition plate 430, and a baffle plate 440. The screen plate 420 has a fan-shaped structure, and the three screen plates 420 are evenly distributed on the three faces of the triangular prism 410. The baffle plate 440 is installed on the side of the screen plate 420 away from the triangular prism 410. A partition plate 430 is provided between adjacent screen plates 420. A hydraulic cylinder 450 is provided on the screen plate 420, and the hydraulic cylinder 450 drives the screen plate 420 to swing periodically. With this design, the construction waste 600 from the crushed material conveying 320 will enter the screen. The screen plate 420 has a mesh size larger than that of the construction waste 600 particles. The main function of the screen plate 420 is to evenly disperse the construction waste 600, preventing it from piling up and falling into the pulping mechanism 500. It also performs a simple screening operation, removing any large particles that may have been accidentally mixed in. It is important to note that regular manual inspection and removal of large particles remaining on the screen plate 420 are necessary. In addition, the periodic oscillation driven by the hydraulic cylinder 450 during screening can better facilitate the screening operation and prevent the construction waste 600 from getting stuck and accumulating on the screen plate 420. The baffle 440 serves two purposes: it prevents the construction waste 600 from scattering and it also protects the hydraulic cylinder 450 from damage.

[0048] In this embodiment, one end of the crushing shaft 220 extends outward, and the crushing shaft 220 is provided with a plurality of mounting holes. The mounting holes are provided with nozzles 280. The crushing shaft 220 is hollow, and the extended end of the crushing shaft 220 is provided with a rotary joint. The rotary joint is connected to a water pipe. The nozzles 280 correspond one-to-one with the crushing teeth 230.

[0049] In this embodiment, the crushing tooth 230 is provided with a ring 231. The ring 231 is fitted on the nozzle 280 but does not contact the nozzle 280. The ring 231 is higher than the nozzle 280. With the above-mentioned structure, the ring 231 protects the nozzle 280 and prevents the nozzle 280 from being damaged. On the other hand, the long-term spraying of the nozzle 280 can also reduce dust during crushing.

[0050] The following details the working process of this design structure. Construction waste 600 is conveyed by the feeding conveyor 310 to the bin 120 on the collection rack 110, impacts the flap 130, and falls into the crushing mechanism 200. Small particles of construction waste 600 fall directly onto the crushing conveyor 320, while large particles impact the triangular beam 260 and randomly fall onto the crushing shafts 220 on both sides. As the crushing shafts 220 rotate, the large particles of construction waste 600 become stuck in the area between the triangular beam 260 and the crushing shafts 220. At this time, the crushing shafts 220... The continued rotation of 0 causes the crushing teeth 230 to press down from above and the sharp teeth 261 to push down from below, both simultaneously crushing the large particles of construction waste 600 into small particles of construction waste 600, which then fall onto the crushing conveyor 320. The crushing conveyor 320 transports the small particles of construction waste 600 to the screening mechanism 400. The hydraulic cylinder 450 drives the screening screen 420 to oscillate periodically, so that the small particles of construction powder fall evenly into the pulping mechanism 500. It should be noted that the pulping mechanism 500 is a commonly used mortar machine in the construction industry, and its technical details will not be described here.

[0051] The above-described embodiments are merely illustrative of certain implementations of the present invention, and are described in a relatively specific and detailed manner. However, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements are all within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A production system for recycled dry-mixed mortar using construction waste, characterized in that: The system includes a waste collection bin (100), a crushing mechanism (200), a conveying mechanism (300), a screening mechanism (400), and a pulping mechanism (500). The waste collection bin (100) collects construction waste (600) and conveys it to the crushing mechanism (200). The crushing mechanism (200) crushes large particles in the construction waste (600) and conveys them to the screening mechanism (400). The screening mechanism (400) filters out unqualified particles. The pulping mechanism (500) uses the construction waste (600) as aggregate to prepare building mortar.

2. The production system for recycled dry-mixed mortar using construction waste according to claim 1, characterized in that: The waste collection bin (100) includes a collection frame (110), a bin body (120), and a flap (130). The collection frame (110) is a steel frame structure. The bin body (120) is installed on the collection frame (110). The upper end of the bin body (120) is provided with a bearing seat (121). One end of the flap (130) is provided with a collar. The collar of the flap (130) is rotatably connected to the bearing seat (121) through a rotating shaft. The flap (130) presses against the inner wall of the bin body (120).

3. The production system for recycled dry-mixed mortar using construction waste according to claim 1, characterized in that: The crushing mechanism (200) includes a crushing shell (210) and two crushing shafts (220) symmetrically installed inside the crushing shell (210). The crushing shafts (220) are provided with a number of circumferentially distributed bosses (), and crushing teeth (230) are fitted on the bosses (). The crushing shell (210) is provided with a crushing motor (240) and a reducer (250) outside the crushing shell (210). The crushing motor (240) drives the crushing shafts (220) through the reducer (250). The crushing shell (210) is provided with a triangular beam (260) inside the crushing shell (210). The triangular beam (260) is located between the two symmetrical crushing shafts (220). The crushing shell (210) is provided with a frame beam (270) outside the crushing shell (210). The triangular beam (260) and the frame beam (270) are connected.

4. The production system for recycled dry-mixed mortar using construction waste according to claim 3, characterized in that: The triangular beam (260) is provided with several upward-sloping sharp teeth (261), the sharp teeth (261) and the crushing teeth (230) on the crushing shaft (220) are intersected, and the crushing teeth (230) are installed on the boss () by bolts.

5. A production system for recycled dry-mixed mortar using construction waste according to claim 1, characterized in that: The conveying mechanism (300) includes a feeding conveyor (310) and a crushing conveyor (320). The feeding conveyor (310) is distributed on three sides of the waste collection bin (100). The feeding conveyor (310) is used to transport construction waste (600) into the bin body (120). The feeding end of the crushing conveyor (320) is located below the crushing mechanism (200), and the discharging end of the crushing conveyor (320) is located above the pulping mechanism (500).

6. The production system for recycled dry-mixed mortar using construction waste according to claim 5, characterized in that: A screening mechanism (400) is provided between the pulping mechanism (500) and the crushing conveyor (320). The screening mechanism (400) includes a triangular prism (410) located at the center, a screening screen plate (420) rotatably connected to the three faces of the triangular prism (410), a partition plate (430), and a baffle plate (440). The screening screen plate (420) has a fan-shaped structure. The three screening screen plates (420) are evenly distributed on the three faces of the triangular prism (410). The baffle plate (440) is installed on the face of the screening screen plate (420) away from the triangular prism (410). A partition plate (430) is provided between adjacent screening screen plates (420).

7. A production system for recycled dry-mixed mortar using construction waste according to claim 3, characterized in that: One end of the crushing shaft (220) extends outward. The crushing shaft (220) has several mounting holes, and each mounting hole has a nozzle (280). The crushing shaft (220) is hollow, and one end of the crushing shaft (220) that extends outward is provided with a rotary joint. The rotary joint is connected to a water pipe. The nozzle (280) corresponds one-to-one with the crushing teeth (230).

8. A production system for recycled dry-mixed mortar using construction waste according to claim 7, characterized in that: The crushing tooth (230) is provided with a ring (231), which is fitted on the nozzle (280) but does not contact the nozzle (280), and the ring (231) is higher than the nozzle (280).

9. A production system for recycled dry-mixed mortar using construction waste according to claim 6, characterized in that: The sieve plate (420) is equipped with a hydraulic cylinder (450), which drives the sieve plate (420) to oscillate periodically.

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