Fine sand recovery device

Abstract

The utility model relates to waste stone processing sand making technical field, and disclose a kind of fine sand recovery device, including recycling processing box, the top of recycling processing box is connected with feeding pipe, the inside of recycling processing box is obliquely installed with the coarse sieve plate and fine sieve plate of opposite oblique direction, second scraping component and first scraping component for cleaning coarse sieve plate and fine sieve plate respectively are also provided on recycling processing box, and wherein: the first scraping component includes fine sand scraper that can move on fine sieve plate upper surface;The utility model can be realized in the coarse sieve plate and fine sieve plate scraping of second scraping component, first scraping component and flushing piece setting, can flush the coarse sieve plate and fine sieve plate simultaneously, to realize the cleaning of coarse sieve plate and fine sieve plate, can further avoid the coarse sieve plate and fine sieve plate blockage, and further conducive to the efficient screening of sand, the recycling of fine sand is convenient.

Description

Technical Field

[0001] This utility model relates to the field of waste rock processing and sand making technology, and in particular to a fine sand recovery device. Background Technology

[0002] Waste rock processing and sand making is a technology that transforms waste rocks generated during mining (such as tailings, weathered rocks, and iron ore waste rock) into construction sand through mechanical crushing and screening. my country generates a huge amount of mine waste rock annually, with a large historical accumulation, which not only occupies land but also causes environmental problems. Therefore, utilizing waste rock processing and sand making technology to convert it into manufactured sand can effectively dispose of solid waste and alleviate the shortage of natural sand. However, the waste rock processing and sand making process usually generates a large amount of wastewater, which often contains sand. To improve resource utilization, recycling devices are generally used to recover the fine sand from the wastewater for easy reuse. Existing recycling devices mostly use screening structures to separate the wastewater from the fine sand. However, these existing screening structures often lack a washing mechanism after screening, making it difficult to clean the screening structure. This can easily lead to clogging of the screening structure, hindering efficient sand screening and ultimately affecting the recycling of fine sand. Utility Model Content

[0003] This invention proposes a fine sand recovery device to solve the problem that existing screening structures are prone to clogging, which is not conducive to efficient sand screening.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a fine sand recovery device, comprising a recovery processing box, a feeding pipe connected to the top of the recovery processing box, and a coarse screen plate and a fine screen plate with opposite inclination directions installed inside the recovery processing box, which divide the interior of the recovery processing box into a coarse screen chamber, a fine screen chamber, and a liquid storage chamber distributed sequentially from top to bottom. A coarse sand discharge pipe corresponding to the coarse screen plate is installed on one side of the recovery processing box, and a fine sand discharge pipe corresponding to the fine screen plate is fixed on the other side. A drain valve communicating with the liquid storage chamber is also connected to one side of the bottom of the recovery processing box. A gate is provided on both the coarse sand discharge pipe and the fine sand discharge pipe. The recovery processing box is also provided with a second scraping assembly and a first scraping assembly for cleaning the coarse screen plate and the fine screen plate, respectively.

[0005] The first scraping assembly includes a fine sand scraper that can move along the upper surface of the fine screen plate;

[0006] The second scraping assembly includes a coarse sand scraper that can move along the upper surface of the coarse screen plate;

[0007] Both the fine sand scraper and the coarse sand scraper are equipped with flushing components to wash the fine screen plate and the coarse screen plate.

[0008] Preferably, the flushing component includes a liquid collection chamber formed inside the fine sand scraper, the scraping side of the fine sand scraper is obliquely cut to form a guide surface, and the guide surface is provided with uniformly distributed liquid outlet holes, the liquid outlet holes are connected to the liquid collection chamber, and the structure of the coarse sand scraper is the same as that of the fine sand scraper.

[0009] Preferably, a pump body is fixed on one side of the recycling tank, and the inlet end of the pump body is connected to the storage chamber through a pipe, and the outlet end is connected to a delivery pipe. One end of the delivery pipe is equipped with a T-connector, and the other two ends of the T-connector are connected to branch pipes. One end of each of the two branch pipes is connected to a connecting hose, and one end of each connecting hose is connected to the collection chamber inside the fine sand scraper and the coarse sand scraper, respectively.

[0010] Preferably, an inclined first baffle is installed at the top of the inside of the recycling bin, and an inclined second baffle is fixed on the inner wall of the recycling bin. The inclined direction of the first baffle is consistent with the inclined direction of the fine sieve plate, and the slopes are the same. The second baffle is located between the coarse sieve plate and the fine sieve plate, and the inclined direction of the second baffle is consistent with the inclined direction of the coarse sieve plate. The slope of the second baffle is greater than the slope of the coarse sieve plate. The coarse sieve plate is located between the first baffle and the second baffle.

[0011] Preferably, the first scraping assembly further includes a first driving member fixed to one side of the recycling bin, the telescopic end of the first driving member being located inside the recycling bin and fixedly connected to the fine sand scraper.

[0012] Preferably, two first guide rails are symmetrically installed on the upper surface of the fine sieve plate, and the bottom of the fine sand scraper is provided with a first guide rail groove that cooperates with the two first guide rails.

[0013] Preferably, the second scraping assembly further includes a second driving member fixed to one side of the recycling bin, the telescopic end of the second driving member being located inside the recycling bin and fixedly connected to the coarse sand scraper.

[0014] Preferably, the upper surface of the coarse screen plate is symmetrically provided with two second guide rails, and the bottom of the coarse sand scraper is provided with a second guide rail groove that cooperates with the two second guide rails.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] (1) By setting up the second scraping component, the first scraping component and the flushing component, it is possible to scrape the coarse screen plate and the fine screen plate while simultaneously flushing them, thereby cleaning the coarse screen plate and the fine screen plate. This can further prevent the coarse screen plate and the fine screen plate from clogging, which is conducive to the efficient screening of sand and facilitates the recycling of fine sand.

[0017] (2) By setting the first baffle and the second baffle, the wastewater can be guided, thereby increasing the water flow and facilitating the effective screening of fine sand mixed in the water. This avoids the problem of incomplete screening caused by the water falling directly and the flow rate being too fast, which in turn helps to improve the screening efficiency and effect of fine sand and facilitates the recycling of fine sand. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0021] Figure 3 for Figure 1 A partial sectional view;

[0022] Figure 4 for Figure 2 A partial sectional view;

[0023] Figure 5 for Figure 3 The front view;

[0024] Figure 6 This is a partial cross-sectional view of a fine sand scraper;

[0025] In the picture:

[0026] 1. Recycling and processing tank; 2. Coarse sand discharge pipe; 3. Feeding pipe; 4. Fine sand discharge pipe; 5. Drain valve; 6. Gate valve;

[0027] 7. First scraping assembly; 71. First driving component; 72. Fine sand scraper; 73. First guide rail; 74. Guide surface; 75. Liquid outlet; 76. Liquid collection chamber;

[0028] 8. Second scraper assembly; 81. Second drive component; 82. Coarse sand scraper; 83. Second guide rail;

[0029] 9. Pump body; 10. Liquid delivery pipe; 11. T-connector; 12. Diversion branch pipe; 13. First baffle plate; 14. Second baffle plate; 15. Coarse sieve plate; 16. Fine sieve plate; 17. Liquid storage chamber; 18. Connecting hose. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] like Figures 1-6 As shown, a fine sand recovery device includes a recovery processing box 1. A feeding pipe 3 is connected to the top of the recovery processing box 1. A coarse screen plate 15 and a fine screen plate 16 with opposite inclination directions are installed at an angle inside the recovery processing box 1, dividing the interior of the recovery processing box 1 into a coarse screen chamber, a fine screen chamber, and a liquid storage chamber 17 distributed sequentially from top to bottom. A coarse sand discharge pipe 2 corresponding to the coarse screen plate 15 is installed on one side of the recovery processing box 1, and a fine sand discharge pipe 4 corresponding to the fine screen plate 16 is fixed on the other side. A drain valve 5 communicating with the liquid storage chamber 17 is also connected to the bottom side of the recovery processing box 1. Gate plates 6 are provided on both the coarse sand discharge pipe 2 and the fine sand discharge pipe 4 to facilitate the opening and closing of the coarse sand discharge pipe 2 and the fine sand discharge pipe 4. The recovery processing box 1 is also equipped with a second scraping assembly 8 and a first scraping assembly 7 to clean the coarse screen plate 15 and the fine screen plate 16, respectively.

[0032] The first scraping assembly 7 includes a fine sand scraper 72 that can move along the upper surface of the fine screen plate 16; the first scraping assembly 7 also includes a first driving member 71 fixed on one side of the recycling tank 1, the telescopic end of the first driving member 71 being inside the recycling tank 1 and fixedly connected to the fine sand scraper 72.

[0033] The second scraping assembly 8 includes a coarse sand scraper 82 that can move along the upper surface of the coarse screen plate 15; the second scraping assembly 8 also includes a second drive member 81 fixed to one side of the recycling tank 1, the telescopic end of the second drive member 81 being inside the recycling tank 1 and fixedly connected to the coarse sand scraper 82.

[0034] Both the fine sand scraper 72 and the coarse sand scraper 82 are equipped with flushing components to wash the fine screen plate 16 and the coarse screen plate 15.

[0035] Depend on Figures 3-6 It is known that the flushing component includes a liquid collection chamber 76 opened inside the fine sand scraper 72. The scraping side of the fine sand scraper 72 is obliquely cut to form a guide surface 74, and the guide surface 74 is provided with uniformly distributed liquid outlet holes 75. The liquid outlet holes 75 are connected to the liquid collection chamber 76. The structure of the coarse sand scraper 82 is the same as that of the fine sand scraper 72.

[0036] Meanwhile, in this embodiment, in order to achieve water spraying from the flushing component through the liquid outlet 75, such as Figures 2-6 As shown, a pump body 9 is fixed on one side of the recycling tank 1, and the inlet end of the pump body 9 is connected to the storage chamber 17 through a pipe. The outlet end is connected to a delivery pipe 10. A three-way connector 11 is installed at one end of the delivery pipe 10, and the other two ends of the three-way connector 11 are connected to branch pipes 12. One end of each branch pipe 12 is connected to a connecting hose 18, and one end of each connecting hose 18 is connected to the collection chamber 76 inside the fine sand scraper 72 and the coarse sand scraper 82, respectively.

[0037] As described above, when recovering fine sand from wastewater in waste rock processing and sand making, wastewater can be added into the recovery and treatment tank 1 through the feeding pipe 3. Then, the wastewater falls onto the inclined coarse screen plate 15. At this time, the coarse screen plate 15 performs primary filtration of the wastewater, so that larger sand particles are blocked on the coarse screen plate 15. After the recovery is completed, the larger sand particles are discharged through the coarse sand discharge pipe 2, while the fine sand and water fall through the coarse screen plate 15 to the fine screen plate 16 below it. At this time, the fine screen plate 16 blocks the fine sand, and the water is discharged into the liquid storage chamber 17 through the fine screen plate 16, while the fine sand is discharged through the fine sand discharge pipe 4, so as to screen the fine sand mixed in the wastewater and facilitate the recycling of sand.

[0038] Furthermore, during sand discharge, the second driving component 81 drives the coarse sand scraper 82 to move along the coarse screen plate 15 to scrape the larger sand particles on the coarse screen plate 15, promoting the rapid discharge of the larger sand particles through the coarse sand discharge pipe 2. At the same time, the first driving component 71 drives the fine sand scraper 72 to move along the fine screen plate 16 to scrape the fine sand on the fine screen plate 16, promoting the fine sand to be discharged through the fine sand discharge pipe 4, thereby avoiding clogging of the coarse screen plate 15 and the fine screen plate 16 and ensuring rapid screening of sand.

[0039] Secondly, during the movement of the coarse sand scraper 82 and the fine sand scraper 72, water is pumped out of the storage chamber 17 by the pump body 9, and then fed into two branch pipes 12 through the delivery pipe 10 and the three-way connector 11. After that, it is fed into the connecting hose 18 through the branch pipes 12, and then into the collection chamber 76. It is discharged through the outlet hole 75 to wash the coarse screen plate 15 and the fine screen plate 16, thereby cleaning the coarse screen plate 15 and the fine screen plate 16. This can further prevent the coarse screen plate 15 and the fine screen plate 16 from clogging, which is conducive to the efficient screening of sand and facilitates the recycling of fine sand.

[0040] Furthermore, such as Figures 3-5 As shown, two first guide rails 73 are symmetrically installed on the upper surface of the fine sieve plate 16, and the bottom of the fine sand scraper 72 is provided with a first guide rail groove that cooperates with the two first guide rails 73.

[0041] When the fine sand scraper 72 slides along the fine screen plate 16, the fine sand scraper 72 slides along the first guide rail 73 through the first guide rail groove to limit the sliding between the fine sand scraper 72 and the fine screen plate 16, so that the fine sand scraper 72 moves stably, which is conducive to the fine sand scraper 72 cleaning the fine screen plate 16 efficiently.

[0042] Furthermore, such as Figures 3-5 As shown, two second guide rails 83 are symmetrically arranged on the upper surface of the coarse screen plate 15, and the bottom of the coarse sand scraper 82 is provided with a second guide rail groove that cooperates with the two second guide rails 83.

[0043] When the coarse sand scraper 82 slides along the coarse screen plate 15, the coarse sand scraper 82 slides along the second guide rail 83 through the second guide rail groove to limit the sliding between the coarse sand scraper 82 and the coarse screen plate 15, so that the coarse sand scraper 82 moves stably, which is conducive to the coarse sand scraper 82 cleaning the coarse screen plate 15 efficiently.

[0044] In another embodiment, such as Figures 3-5 As shown, an inclined first baffle plate 13 is installed at the top of the inside of the recycling and processing box 1, and an inclined second baffle plate 14 is also fixed on the inner wall of the recycling and processing box 1. The inclination direction of the first baffle plate 13 is consistent with the inclination direction of the fine screen plate 16, and the slopes are the same. The second baffle plate 14 is located between the coarse screen plate 15 and the fine screen plate 16, and the inclination direction of the second baffle plate 14 is consistent with the inclination direction of the coarse screen plate 15. The slope of the second baffle plate 14 is greater than the slope of the coarse screen plate 15. The coarse screen plate 15 is located between the first baffle plate 13 and the second baffle plate 14.

[0045] When wastewater from waste rock processing and sand making is discharged into the recycling tank 1 through the feeding pipe 3, the wastewater first falls onto the first baffle plate 13 and flows along it. At this time, the first baffle plate 13 guides the wastewater to the coarse screen plate 15. When the water falls through the coarse screen plate 15, it falls onto the second baffle plate 14 and flows along it, falling onto the fine screen plate 16. This achieves the guidance of the wastewater, thereby increasing the water flow and facilitating the effective screening of fine sand mixed in the water. It avoids the problem of incomplete screening caused by water falling directly and flowing too fast, which is conducive to improving the screening efficiency and effect of fine sand and facilitating the recycling of fine sand.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fine sand recycling device, comprising a recycling treatment box (1), a feeding pipe (3) is connected to the top of the recycling treatment box (1), characterized in that: The recycling tank (1) is equipped with a coarse sieve plate (15) and a fine sieve plate (16) with opposite inclination directions. The coarse sieve plate (15) and the fine sieve plate (16) divide the interior of the recycling tank (1) into a coarse sieve chamber, a fine sieve chamber, and a liquid storage chamber (17) distributed from top to bottom. A coarse sand discharge pipe (2) corresponding to the coarse sieve plate (15) is installed on one side of the recycling tank (1), and a fine sand discharge pipe (4) corresponding to the fine sieve plate (16) is fixed on the other side. A drain valve (5) communicating with the liquid storage chamber (17) is also connected to the bottom side of the recycling tank (1). A gate plate (6) is provided on both the coarse sand discharge pipe (2) and the fine sand discharge pipe (4). The recycling tank (1) is also equipped with a second scraping assembly (8) and a first scraping assembly (7) for cleaning the coarse sieve plate (15) and the fine sieve plate (16), respectively. The first scraping assembly (7) includes a fine sand scraper (72) that can move along the upper surface of the fine screen plate (16); The second scraping assembly (8) includes a coarse sand scraper (82) movable along the upper surface of the coarse screen plate (15); Both the fine sand scraper (72) and the coarse sand scraper (82) are equipped with flushing components for rinsing the fine screen plate (16) and the coarse screen plate (15).

2. A fine sand recovery device according to claim 1, characterised in that: The flushing component includes a liquid collection chamber (76) inside the fine sand scraper (72). The scraping side of the fine sand scraper (72) is obliquely cut to form a guide surface (74), and the guide surface (74) is provided with uniformly distributed liquid outlet holes (75). The liquid outlet holes (75) are connected to the liquid collection chamber (76). The structure of the coarse sand scraper (82) is the same as that of the fine sand scraper (72).

3. A fine sand recovery device according to claim 2, characterised in that: A pump body (9) is fixed on one side of the recycling tank (1), and the inlet end of the pump body (9) is connected to the storage chamber (17) through a pipe. The outlet end is connected to a delivery pipe (10). A three-way connector (11) is installed at one end of the delivery pipe (10), and the other two ends of the three-way connector (11) are connected to branch pipes (12). One end of each of the two branch pipes (12) is connected to a connecting hose (18), and one end of each connecting hose (18) is connected to the collection chamber (76) inside the fine sand scraper (72) and the coarse sand scraper (82), respectively.

4. A fine sand recovery device according to claim 1, characterized in that: An inclined first baffle plate (13) is installed at the top of the inside of the recycling tank (1), and an inclined second baffle plate (14) is also fixed on the inner wall of the recycling tank (1). The inclined direction of the first baffle plate (13) is consistent with the inclined direction of the fine sieve plate (16), and the slopes are the same. The second baffle plate (14) is located between the coarse sieve plate (15) and the fine sieve plate (16), and the inclined direction of the second baffle plate (14) is consistent with the inclined direction of the coarse sieve plate (15). The slope of the second baffle plate (14) is greater than the slope of the coarse sieve plate (15). The coarse sieve plate (15) is located between the first baffle plate (13) and the second baffle plate (14).

5. A fine sand recovery device according to claim 1, characterized in that: The first scraping assembly (7) also includes a first drive member (71) fixed on one side of the recycling bin (1), the telescopic end of the first drive member (71) being inside the recycling bin (1) and fixedly connected to the fine sand scraper (72).

6. A fine sand recovery device according to claim 5, characterised in that: The upper surface of the fine sieve plate (16) is also symmetrically equipped with two first guide rails (73), and the bottom of the fine sand scraper (72) is provided with a first guide rail groove that cooperates with the two first guide rails (73).

7. A fine sand recovery device according to claim 1, characterized in that: The second scraping assembly (8) also includes a second drive member (81) fixed to one side of the recycling bin (1). The telescopic end of the second drive member (81) is located inside the recycling bin (1) and is fixedly connected to the coarse sand scraper (82).

8. A fine sand recovery device according to claim 7, characterised in that: The upper surface of the coarse screen plate (15) is also symmetrically provided with two second guide rails (83), and the bottom of the coarse sand scraper (82) is provided with a second guide rail groove that cooperates with the two second guide rails (83).

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