Aggregate washing and filtering plant for the production of concrete

Abstract

The utility model discloses an aggregate cleaning and filtering equipment for producing concrete relates to concrete production technical field, aims at solving technical problem, including filter box, cleaning tank and the cleaning mechanism of setting up in filter box and the cleaning mechanism of setting up in cleaning tank, the rotary axle is provided with the stirring vane, the upper end of cleaning tank is provided with the cleaning pipe of symmetry, the spray head of setting up equidistance in cleaning tank is provided on the cleaning pipe, the cleaning mechanism includes the reciprocating screw rod of setting up in filter box, the slider of reciprocating screw rod lower end is provided with multistage telescopic link of symmetry, the end of multistage telescopic link is provided with the scraper, the inner wall of filter box is provided with the limit stop of symmetry. The utility model has can continue to clean filter plate, avoid the impurity accumulation and block, and the limit stop design prevents the impurity back and scrape, and guarantees the filtration and continues effectively, and the spiral inclined stirring vane cooperation spray head, efficient cleaning and convey aggregate, realize the advantage that water is recycled.

Description

Technical Field

[0001] This utility model relates to the field of concrete production technology, and more specifically, to an aggregate washing and filtering device for concrete production. Background Technology

[0002] Concrete is a composite material made by mixing and hardening cementitious materials (such as cement), aggregates (sand, stone), water, and admixtures in a specific ratio. It is widely used in construction, transportation, water conservancy, and other engineering fields. Its advantages are significant: high compressive strength, capable of withstanding enormous loads; strong durability, resisting natural environmental erosion; readily available and relatively low-cost raw materials, suitable for large-scale construction. Modern concrete, by adding water-reducing agents and admixtures, has evolved into high-performance, lightweight, and self-healing special types to meet diverse engineering needs, making it one of the core materials in contemporary civil engineering.

[0003] Cleaning concrete aggregates before use is a crucial step in ensuring concrete quality. Currently, aggregates are cleaned using continuous spraying to remove surface contaminants such as mud, impurities, and stone powder. To facilitate water recycling, filtration structures are typically installed. However, during continuous filtration, impurities accumulate in these structures, which are difficult to clean due to their internal location, leading to clogging and hindering water recycling. Therefore, we propose an aggregate cleaning and filtration device for concrete production. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide an aggregate cleaning and filtration device for concrete production, so as to solve the technical problem that the current filter structure is located inside the equipment and is inconvenient to clean.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an aggregate washing and filtering device for producing concrete, comprising a filter box, a washing box, and a cleaning mechanism disposed within the filter box. The cleaning mechanism includes a rotating shaft symmetrically rotatably installed within the washing box, with stirring blades disposed on the rotating shaft. The stirring blades are spirally arranged along the long axis of the rotating shaft, and each stirring blade is composed of several single blades arranged on an inclined surface. A washing pipe is symmetrically disposed at the upper end of the washing box, and spray nozzles extending into the washing box are equidistantly disposed on the washing pipe. The cleaning mechanism includes a reciprocating screw disposed within the filter box, with positioning rods disposed on both sides of the reciprocating screw within the filter box. A multi-stage telescopic rod is symmetrically disposed at the lower end of the slider of the reciprocating screw, and a scraper is disposed at the end of the multi-stage telescopic rod. Limiting plates are symmetrically disposed on the inner wall of the filter box.

[0006] Preferably, the cleaning box is located above the filter box, the upper end of the cleaning box is provided with a feed hopper, the rear end of the cleaning box is provided with a discharge pipe, and the bottom of the cleaning box is provided with uniformly distributed impurity discharge holes.

[0007] Preferably, the front end of the cleaning tank is symmetrically rotatably mounted with gears connected to the axis of rotation, the gears meshing with each other, and a motor is provided at the front end of the cleaning tank, the output shaft of the motor being connected to the axis of the gear located on the right side.

[0008] Preferably, a water pump is installed inside the filter box, a water supply pipe is installed on the water pump, the end of the water supply pipe is connected to a cleaning pipe, a drain pipe is installed at the rear end of the filter box, and a valve is installed on the drain pipe.

[0009] Preferably, the filter box is provided with a filter plate, the lower end of the scraper is in contact with the filter plate, the filter plate is inclined upward along the long axis, and the tail of the filter box is provided with a discharge port at the end of the filter plate.

[0010] Preferably, a second pulley connected to the reciprocating lead screw shaft is rotatably mounted at the front end of the filter box, a first pulley is provided on the gear on the left side, and a transmission belt is provided between the first pulley and the second pulley.

[0011] Preferably, the limiting plate includes a limiting part, and mounting parts are provided at equal intervals on the side ends of the limiting part. The mounting parts are welded and fixed to the inner wall of the filter box. The front end of the limiting part is provided with a downwardly curved sliding part, and the end of the limiting part is provided with a guide part. The guide part is made of elastic metal and is arranged in a downwardly curved arc shape, and the end of the guide part contacts the filter plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model, through the design of a reciprocating screw and scraper structure, allows the reciprocating screw in the cleaning mechanism to work under the drive of the transmission belt, causing the scraper to move back and forth along the filter plate. When the scraper contacts the filter plate, it can promptly scrape off the impurities accumulated on the filter plate and discharge them through the outlet, thus avoiding the problem of filter structure blockage caused by impurity accumulation and solving the problem that the current filter structure is located inside the equipment and is inconvenient to clean.

[0014] 2. This utility model also features a structural design where the guide portion at the end of the limiting part is made of elastic metal and has a downward-curved arc shape. When the scraper moves back, it is limited and guided by the guide portion, causing the multi-stage telescopic rod to retract and allowing the scraper to rise to the upper end of the limiting plate. In this way, the scraper will not contact the filter plate during the return process, effectively preventing the scraper from scraping impurities on the filter plate back into the filter box, avoiding secondary accumulation of impurities and affecting the filtration effect. The sliding part of the limiting plate has a downward-curved arc shape. When the scraper moves back to the end of the sliding part, it can slide smoothly along the sliding part under its own weight, driving the multi-stage telescopic rod to extend, so that the scraper accurately returns to the beginning of the filter plate. This ensures that the scraper is in the correct working starting position each time it resets, ensuring the effective implementation of subsequent cleaning work and further facilitating the cleaning of the filter structure.

[0015] 3. This utility model achieves efficient cleaning of aggregates through the combination of spirally inclined stirring blades and spray heads. When the stirring blades rotate, they can not only stir the aggregates in all directions, promoting full contact between the mud and impurities on the surface of the aggregates and the water flow, but also the spiral structure can transport the aggregates backward at low speed. Combined with the flushing of the spray heads, the aggregates are automatically discharged from the discharge pipe after completing the cleaning process in the cleaning tank, without the need for manual intervention, which greatly improves the cleaning efficiency and ensures the uniformity and thoroughness of the cleaning effect. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present utility model;

[0017] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0018] Figure 3 This is a first cross-sectional view of the present invention.

[0019] Figure 4 This is a second cross-sectional view of the present invention.

[0020] Figure 5 This is a schematic diagram of the stirring blade structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the limiting plate structure of this utility model.

[0022] The following are the labels in the diagram: 101, Filter box; 102, Cleaning box; 103, Feed hopper; 104, Discharge pipe; 105, Discharge port; 106, Filter plate; 200, Cleaning mechanism; 201, Rotating shaft; 202, Stirring blades; 203, Cleaning pipe; 204, Water supply pipe; 205, Gear; 206, Impurity discharge hole; 207, Spray head; 208, First pulley; 209, Motor; 300, Cleaning mechanism; 301, Reciprocating screw; 302, Positioning rod; 303, Multi-stage telescopic rod; 304, Second pulley; 305, Scraper; 306, Limiting plate; 3061, Limiting part; 3062, Mounting part; 3063, Guide part; 3064, Sliding part. Detailed Implementation

[0023] like Figures 1 to 6 As shown, this utility model relates to an aggregate washing and filtering device for concrete production, including a filter box 101, a washing box 102, a cleaning mechanism 300 installed inside the filter box 101, and a washing mechanism 200 installed inside the washing box 102. The washing mechanism 200 includes a rotating shaft 201 symmetrically rotatably installed inside the washing box 102. Agitator blades 202 are mounted on the rotating shaft 201, and the agitator blades 202 are spirally arranged along the long axis of the rotating shaft 201. Each agitator blade 202 is composed of several single blades, each blade being an inclined surface. The spiral arrangement of the agitator blades 202 allows them to not only clean the aggregate during washing but also... During the mixing process, the aggregate can be conveyed backward at a low speed so that it can be discharged from the discharge pipe 104. The upper end of the washing tank 102 is symmetrically provided with washing pipes 203. Spray heads 207 extending into the washing tank 102 are equidistantly provided on the washing pipes 203. The cleaning mechanism 300 includes a reciprocating screw 301 provided in the filter box 101. Positioning rods 302 are provided on both sides of the reciprocating screw 301 in the filter box 101. Multi-stage telescopic rods 303 are symmetrically provided at the lower end of the slider of the reciprocating screw 301. Scrapers 305 are provided at the ends of the multi-stage telescopic rods 303. Limiting plates 306 are symmetrically provided on the inner wall of the filter box 101. This utility model uses a reciprocating screw 301 to drive a scraper 305 to clean the filter plate 106 back and forth, avoiding the accumulation and blockage of impurities; the limiting plate 306 is designed to prevent impurities from being scraped back, ensuring continuous and effective filtration; the spiral inclined stirring blades 202, together with the spray head 207, efficiently clean and transport aggregates, realizing water recycling.

[0024] Specifically, the washing tank 102 is located above the filter tank 101. A feed hopper 103 is located at the top of the washing tank 102, and a discharge pipe 104 is located at the rear end of the washing tank 102. Impurity discharge holes 206 are evenly distributed at the bottom of the washing tank 102. The feed hopper 103 is used to continuously add aggregate into the washing tank 102, and the impurity discharge holes 206 are used to discharge wastewater and impurities generated during washing into the filter tank 101.

[0025] Furthermore, gears 205, symmetrically rotatably connected to the axis of the rotating shaft 201, are mounted on the front end of the cleaning tank 102. The gears 205 mesh with each other. A motor 209 is located at the front end of the cleaning tank 102, and the output shaft of the motor 209 is connected to the axis of the gear 205 located on the right. When the motor 209 operates, it causes the gear 205 on the right to rotate. The rotation of the gear 205 on the right drives the gear 205 on the left, thereby causing the two rotating shafts 201 to rotate synchronously. The stirring blades 202 then perform cleaning and stirring.

[0026] Furthermore, a water pump is installed inside the filter box 101, and a water supply pipe 204 is installed on the water pump. The end of the water supply pipe 204 is connected to the cleaning pipe 203. A drain pipe with a valve is installed at the rear end of the filter box 101. The water pump can transport the filtered water in the filter box 101 to the cleaning pipe 203, so that the water can be sprayed out from the spray head 207 to rinse and clean the aggregate. When the water in the filter box 101 is no longer being recycled, the water in the filter box 101 can be discharged by opening the valve on the drain pipe.

[0027] It is worth noting that a filter plate 106 is installed inside the filter box 101, and the lower end of the scraper 305 contacts the filter plate 106. The filter plate 106 is inclined upward along its long axis, and a discharge port 105 is opened at the tail end of the filter box 101, located at the end of the filter plate 106. When the scraper 305 moves toward the discharge port 105, the scraper 305 can contact the filter plate 106 due to its own weight, thereby scraping off the impurities accumulated on the filter plate 106. As the scraper 305 moves toward the discharge port 105, the impurities can be discharged from the discharge port 105.

[0028] It is worth mentioning that a second pulley 304, which is rotatably mounted on the front end of the filter box 101 and connected to the shaft of the reciprocating screw 301, is located on the gear 205 on the left side. A first pulley 208 is provided on the gear 205 on the left side, and a transmission belt is provided between the first pulley 208 and the second pulley 304. During the aggregate washing process, the first pulley 208 can drive the second pulley 304 to rotate under the action of the transmission belt, thereby enabling the reciprocating screw 301 to work, which in turn causes the scraper 305 to move back and forth.

[0029] It is worth noting that the limiting plate 306 includes a limiting part 3061, and mounting parts 3062 are equidistantly arranged on the side end of the limiting part 3061. The mounting parts 3062 are welded and fixed to the inner wall of the filter box 101. The front end of the limiting part 3061 is provided with a downwardly curved sliding part 3064, and the end of the limiting part 3061 is provided with a guide part 3063. The guide part 3063 is made of elastic metal material, and the guide part 3063 is arranged in a downwardly curved arc shape. The end of the guide part 3063 is in contact with the filter plate 106. When the scraper 305 moves toward the discharge port 105, it can squeeze the guide part 3063. The guide part 3063 can deform upward, so that the scraper 305 can pass smoothly. After the scraper 305 passes, the guide part 3063 returns to its original position. When the scraper 305 moves back, because the guide part 3063 is a downward curved arc, the scraper 305 will be limited and guided by the guide part 3063. At this time, the multi-stage telescopic rod 303 retracts, which can make the scraper 305 reach the upper end of the limit plate 306. As the scraper 305 moves back, when the scraper 305 moves to the tail of the sliding part 3064, the scraper 305 drives the multi-stage telescopic rod 303 to extend under its own weight. The scraper 305 can rise again at the beginning of the filter plate 106, which can prevent the scraper 305 from scraping impurities into the filter box 101 when it moves back.

[0030] Working Principle: This embodiment provides an aggregate washing and filtering device for concrete production. During use, aggregate is continuously added to the washing tank 102 through the feed hopper 103. The motor 209 is started, driving the right gear 205 to rotate. Since the two gears 205 mesh, they in turn drive the left gear 205 to rotate, causing the two rotating shafts 201 to rotate synchronously. The spirally arranged stirring blades 202 on the rotating shafts 201, with their single blades inclined, rotate accordingly. While stirring the aggregate, the stirring blades 202 utilize their spiral structure to convey the aggregate backward at a low speed, allowing it to be discharged from the discharge pipe 104. Simultaneously, the water pump inside the filter box 101 starts, transporting the filtered water from the filter box 101 to the cleaning pipe 203 through the water supply pipe 204. The water is sprayed out from the spray nozzles 207 evenly spaced on the cleaning pipe 203, flushing and cleaning the aggregate in the cleaning box 102. Combined with agitation, the aggregate can be thoroughly cleaned. The impurities and wastewater generated during the cleaning process flow into the filter box 101 below through the impurity discharge holes 206 evenly spaced at the bottom of the cleaning box 102. After entering the filter box 101, the wastewater is filtered by the inclined filter plates 106. The filtered water remains in the filter box 101 and can be circulated and pumped out by the water pump. When it is necessary to discharge water that is no longer being recycled, simply open the valve on the drain pipe at the rear end of the filter box 101. During the aggregate washing process, when the left gear 205 rotates, it drives the second pulley 304 to rotate via the first pulley 208 and the transmission belt. This causes the reciprocating screw 301, which is axially connected to the second pulley 304, to work, driving the slider of the reciprocating screw 301 to move back and forth along the positioning rod 302. The multi-stage telescopic rod 303 and scraper 305 at the lower end of the slider move back and forth accordingly. When the scraper 305 moves toward the discharge port 105, the scraper 305 contacts the filter plate 106 due to its own weight, and the filter plate 106... Accumulated impurities are scraped off and discharged from the outlet 105 as the scraper moves. When the scraper 305 moves back, it is limited and guided by the guide part 3063 of the limiting plate 306. At this time, the multi-stage telescopic rod 303 retracts, causing the scraper 305 to rise to the upper end of the limiting plate 306. When the scraper 305 moves to the tail of the sliding part 3064, it drives the multi-stage telescopic rod 303 to extend under its own weight, so that the scraper 305 is back at the beginning of the filter plate 106. This prevents the scraper 305 from scraping impurities into the filter box 101 when it moves back, thus achieving continuous cleaning of the filter plate 106 and ensuring the filtration effect and smooth water circulation.

[0031] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. An aggregate washing and filtering device for concrete production, characterized in that, The system includes a filter box (101), a cleaning box (102), a cleaning mechanism (300) installed inside the filter box (101), and a cleaning mechanism (200) installed inside the cleaning box (102). The cleaning mechanism (200) includes a rotating shaft (201) symmetrically rotatably installed inside the cleaning box (102). A stirring blade (202) is mounted on the rotating shaft (201). The stirring blade (202) is spirally arranged along the long axis of the rotating shaft (201). The stirring blade (202) is composed of several single blades, each arranged on an inclined surface. The upper end of the cleaning box (102) is symmetrical. A cleaning pipe (203) is provided, and spray heads (207) extending into the cleaning box (102) are equidistantly arranged on the cleaning pipe (203). The cleaning mechanism (300) includes a reciprocating screw (301) arranged in the filter box (101). Positioning rods (302) are arranged on both sides of the reciprocating screw (301) in the filter box (101). Multi-stage telescopic rods (303) are symmetrically arranged at the lower end of the slider of the reciprocating screw (301). Scrapers (305) are arranged at the ends of the multi-stage telescopic rods (303). Limiting plates (306) are symmetrically arranged on the inner wall of the filter box (101).

2. The aggregate washing and filtering equipment for producing concrete according to claim 1, characterized in that, The cleaning box (102) is located at the top of the filter box (101). The upper end of the cleaning box (102) is provided with a feed hopper (103). The rear end of the cleaning box (102) is provided with a discharge pipe (104). The bottom of the cleaning box (102) is evenly provided with impurity discharge holes (206).

3. The aggregate washing and filtering equipment for producing concrete according to claim 2, characterized in that, The front end of the cleaning tank (102) is symmetrically rotatably mounted with gears (205) connected to the axis of the rotating shaft (201). The gears (205) are meshed with each other. The front end of the cleaning tank (102) is provided with a motor (209). The output shaft of the motor (209) is connected to the axis of the gear (205) located on the right side.

4. The aggregate washing and filtering equipment for producing concrete according to claim 3, characterized in that, The filter box (101) is equipped with a water pump, and the water pump is equipped with a water supply pipe (204). The end of the water supply pipe (204) is connected to the cleaning pipe (203). The rear end of the filter box (101) is equipped with a drain pipe, and the drain pipe is equipped with a valve.

5. The aggregate washing and filtering equipment for producing concrete according to claim 4, characterized in that, The filter box (101) is provided with a filter plate (106), the lower end of the scraper (305) is in contact with the filter plate (106), the filter plate (106) is inclined upward along the long axis, and the tail of the filter box (101) is provided with a discharge port (105) at the end of the filter plate (106).

6. The aggregate washing and filtering equipment for producing concrete according to claim 5, characterized in that, The front end of the filter box (101) is rotatably mounted with a second pulley (304) connected to the axis of the reciprocating screw (301), and a first pulley (208) is provided on the gear (205) on the left side. A transmission belt is provided between the first pulley (208) and the second pulley (304).

7. The aggregate washing and filtering equipment for producing concrete according to claim 6, characterized in that, The limiting plate (306) includes a limiting part (3061), and mounting parts (3062) are provided at equal intervals on the side end of the limiting part (3061). The mounting parts (3062) are welded and fixed to the inner wall of the filter box (101). The front end of the limiting part (3061) is provided with a downwardly curved sliding part (3064). The end of the limiting part (3061) is provided with a guide part (3063). The guide part (3063) is made of elastic metal material. The guide part (3063) is arranged in a downwardly curved arc shape, and the end of the guide part (3063) is in contact with the filter plate (106).

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