A cleaning system for producing washed sand

Abstract

The present application relates to a kind of cleaning systems for washing sand production, belong to washing sand production technical field.The soaking pool one end is equipped with chute, and the tumbling cylinder is obliquely installed on the soaking pool, and the tumbling cylinder is above the chute, and the tumbling cylinder front end is in the soaking pool, and the crushing device is connected with the tumbling cylinder by the conveying belt;The classification cylinder can be rotatably installed on the classification bin, and the classification cylinder is butt joint in the tumbling cylinder end, and the spray pipe is installed on the classification bin rack, and the spray pipe is extended into the classification cylinder;It is compared with the washing after being broken into sand to wash stone, specific surface area, it is beneficial to washing, and the cleaning effect is good, and the stone is beneficial to draining, reduces moisture content, and the stone after washing can be directly used after sand making, avoid occupation site, influence project progress;Stone and sludge are relatively easy to separate, only a small amount of sand flows away with sludge, effectively reduce the sand in water channel, pool silting, reduce the difficulty of sewage treatment, cost, the cleaning effect is good, and the sand making quality is good.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of water-washed sand production, and particularly relates to a cleaning system for water-washed sand production. BACKGROUND

[0002] Sand is an essential building material in the construction industry, and sand often contains a small amount of soil when it is mined. If sand is not cleaned, it will lead to insufficient adhesion of building materials if used directly as building materials. In the prior art, various sand washing machines such as spiral sand washing machines, drum sand washing machines, water wheel sand washing machines (also known as wheel type sand washing machines), and vibrating sand washing machines are used to wash sand after crushing sand into sand. The sand washed and selected usually contains a very large amount of water and cannot be used directly and needs to be deposited for several days, which cannot meet the demand for building sand and affects the progress of the project. At the same time, the crushing of sandstone into sand increases the specific surface area of the material, making the sand and soil mix more fully and increasing the difficulty of cleaning. At the same time, there are great disadvantages, such as a large amount of sand flowing away with sludge and accumulating in water channels and water pools, which increases the difficulty of sewage treatment. SUMMARY

[0003] In order to overcome the problems that the sand washed and selected contains a very large amount of water and cannot be used directly and needs to be deposited for several days, which cannot meet the demand for building sand and affects the progress of the project, and the crushing of sandstone into sand increases the specific surface area of the material, making the sand and soil mix more fully and increasing the difficulty of cleaning, and a large amount of sand flows away with sludge and accumulates in water channels and water pools, which increases the difficulty of sewage treatment, the present application provides a cleaning system for water-washed sand production. The original stone is initially crushed into stone blocks with a size of several centimeters, which are conveyed to a turnover washing drum for soaking washing to wash away a large amount of sludge and fine sand. The stone blocks are then conveyed to a grading drum for tumbling, spraying cleaning, and grading. The cleaned stone blocks are then conveyed to a sand making device for sand making. The stone blocks are cleaned, and the specific surface area is beneficial to cleaning, which has a good cleaning effect. The stone blocks are beneficial to draining and reducing the water content. The cleaned stone blocks can be used directly after sand making, avoiding the occupation of space and the influence on the progress of the project. The separation of the stone blocks and the sludge is relatively easy, only a small amount of sand flows away with the sludge, effectively reducing the accumulation of sand in water channels and water pools, reducing the difficulty and cost of sewage treatment, having a good cleaning effect, and having good sand making quality.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: A washing system for sand production mainly includes a crushing device 1, a soaking tank 2, a turning drum 3, a grading bin 4, a grading drum 5, and a spray pipe 6. The soaking tank 2 is provided with a chute 21 at one end. The turning drum 3 is installed obliquely on the soaking tank 2, above the chute 21, with its front end inside the soaking tank 2. The crushing device 1 is connected to the turning drum 3 via a conveyor belt. The grading drum 5 is rotatably installed on the grading bin 4, and is connected to the end of the turning drum 3. The spray pipe 6 is installed on the frame of the grading bin 4 and extends into the grading drum 5.

[0005] Furthermore, the tumbling drum 3 includes a rotating shaft 31, a drive motor 32, a drum 33, a spiral guide plate 34, and a feed hopper 35. The rotating shaft 31 and the drive motor 32 are installed on the soaking tank 2. The drive motor 32 is connected to the rotating shaft 31 for transmission. The drum 33 is fixedly installed on the rotating shaft 31. The drum 33 is evenly provided with mesh holes. The spiral guide plate 34 is installed on the inner wall of the drum 33. The feed hopper 35 is sleeved on the rotating shaft 31 and fixed on the support of the soaking tank 2. The front end of the drum 33 and the end of the feed hopper 35 are rotatably sleeved.

[0006] Furthermore, the bottom of the feed hopper 35 is provided with an annular disk 39 that is connected to the roller 33. Inside the annular disk 39, there is a protective sleeve 36 that is sleeved on the rotating shaft 31. The top of the protective sleeve 36 is a guide part 37 with a sharp angle to reduce the impact of materials.

[0007] Furthermore, a spiral plate 38 for cleaning sludge in the chute 21 is installed on the outer wall of the roller 33.

[0008] Furthermore, the outer wall of the grading roller 5 is provided with an annular slide rail 51 and a gear disk 52, and a limiting support wheel 53 is installed on the grading bin 4. The grading roller 5 is installed on the grading bin 4 through the annular slide rail 51 and the limiting support wheel 53. A grading motor 54 is installed on the frame of the grading bin 4, and the grading motor 54 and the gear disk 52 are driven by gear meshing. An arc-shaped guard plate 58 is installed above the limiting support wheel 53 to prevent stones from falling onto the limiting support wheel.

[0009] Furthermore, the screening mesh of the grading roller 5 increases in size along the axial direction. The screening mesh is formed by longitudinal support rods 55 and spiral rods 56. The cross-sections of the support rods 55 and spiral rods 56 are triangular, and one side of the triangular cross-section is arranged facing the axis of the grading roller 5. A spiral pusher plate 57 is installed on the inner wall of the grading roller 5.

[0010] Furthermore, the grading bin 4 is provided with a material chute 41 corresponding to the grading roller 5. The bottom of the grading bin 4 is provided with a water collection tank 42. The bottom of the material chute 41 is provided with a drain hole 43 that communicates with the water collection tank 42. The water collection tank 42 is connected to the soaking tank 2 through a water pump and a water pipe. The soaking tank 2 is connected to the sewage treatment equipment and the sludge filter press equipment through a sludge pump and a sludge pipe.

[0011] Furthermore, the grading bin 4 is provided with a discharge chute 44 at its end, and the discharge chute 44 is connected to the crushing device 1 via a return conveyor belt.

[0012] Furthermore, a sand-lifting device 7 is installed in the soaking tank 2. The sand-lifting device 7 includes a support frame 71, a chain drive assembly 72, a lifting motor 73, a retrieval bucket 74, and a receiving trough 75. The support frame 71 is installed in the soaking tank 2, the chain drive assembly 72 is installed on the support frame 71, the lifting motor 73 is installed on the support frame 71, and the lifting motor 73 is connected to the chain drive assembly 72. The retrieval bucket 74 is evenly installed on the chain drive assembly 72, and the receiving trough 75 is installed at the end of the support frame 71. The retrieval bucket 74 is evenly provided with drainage mesh holes.

[0013] Furthermore, the crushing device 1 is provided with a raw stone inlet 11, a return material inlet 12 and two discharge ports 13. The raw stone inlet 11 is connected to the raw stone storage bin through a raw stone conveyor belt. The end of the grading roller 5 is connected to the return material inlet 12 through a return material conveyor belt. The two discharge ports 13 are respectively connected to two turning rollers 3 through conveyor belts.

[0014] Furthermore, protective covers are installed on the tumbling drum 3 and the grading drum 5.

[0015] The beneficial effects of this invention are:

[0016] This invention involves initially crushing raw stones into small blocks (about the size of a centimeter), which are then conveyed to a washing drum for soaking and washing to remove a large amount of sludge and fine sand. The stones then enter a grading drum for tumbling, spraying, and grading. After washing, the stones are then conveyed to a sand-making device for sand production. Because the stones are washed, compared to washing after crushing into sand, the surface area is larger, which is beneficial for washing and results in a better washing effect. The stones are also easier to drain, reducing their moisture content. The washed stones can be used directly after sand production, avoiding accumulation that would occupy space and affect project progress. Separation of stones from sludge is relatively easy, with only a small amount of sand flowing away with the sludge, effectively reducing sand accumulation in ditches and pools, lowering the difficulty and cost of wastewater treatment, and resulting in good washing effect and high-quality sand. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0018] Figure 2This is a three-dimensional schematic diagram of the soaking tank and the turning drum of the present invention.

[0019] Figure 3 This is a schematic diagram of the full cross-sectional structure of the soaking tank and the turning drum of the present invention.

[0020] Figure 4 This is a schematic diagram of the feed hopper structure of the present invention.

[0021] Figure 5 This is a three-dimensional schematic diagram of the grading bin, grading roller, and spray pipe of the present invention.

[0022] Figure 6 This is a schematic diagram of the full cross-sectional structure of the grading bin, grading roller, and spray pipe of the present invention.

[0023] Figure 7 This is a partial cross-sectional perspective view of the grading bin, grading roller, and spray pipe of the present invention.

[0024] Figure 8 This is a partial three-dimensional schematic diagram of the grading bin, grading roller, and spray pipe of the present invention.

[0025] Figure 9 This is a three-dimensional schematic diagram of the graded roller structure of the present invention.

[0026] Figure 10 This is a three-dimensional schematic diagram of the sand-lifting device of the present invention.

[0027] Figure 11 This is a three-dimensional schematic diagram of the crushing device of the present invention. Detailed Implementation

[0028] To make the objectives, technical solutions, and beneficial effects of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so as to facilitate understanding by those skilled in the art.

[0029] This invention discloses a washing system for sand production. The washing system mainly includes a crushing device 1, a soaking tank 2, a turning drum 3, a grading bin 4, a grading drum 5, and a spray pipe 6. One end of the soaking tank 2 is provided with a chute 21. The turning drum 3 is installed at an incline on the soaking tank 2, above the chute 21, with its front end inside the soaking tank 2. The crushing device 1 is connected to the turning drum 3 via a conveyor belt. The grading drum 5 is rotatably installed on the grading bin 4. Connected to the end of the turning drum 3, the spray pipe 6 is installed on the frame of the grading bin 4, and extends into the grading drum 5; the raw stone is initially crushed into stones of centimeter size and then conveyed to the turning drum for soaking; the turning drum 3 includes a rotating shaft 31, a drive motor 32, a drum 33, a spiral guide plate 34, and a feed hopper 35. The rotating shaft 31 and the drive motor 32 are installed on the soaking tank 2, and the drive motor 32 is connected to the rotating shaft 31 for transmission. The drum 33 is fixedly installed on the rotating shaft 31, and a mesh is evenly distributed on the drum 33. A spiral guide plate 34 is installed on the inner wall of the roller 33. The feed hopper 35 is sleeved on the rotating shaft 31 and fixed on the support of the soaking tank 2. The front end of the roller 33 and the end of the feed hopper 35 are rotatably connected. The bottom end of the turning roller 3 is immersed in the soaking tank 2. Through the rotation of the turning roller 3, the stones roll, collide and rub against each other. At the same time, water washes away the surface mud and sand. Smaller sand and soil are discharged into the soaking tank 2 through the turning roller 3. The stones continue to be conveyed into the grading roller for rolling, spraying, cleaning and grading. The graded stones are then sorted according to... Its size can be selected as centimeter stones or transported to sand making equipment for sand making; because it is a stone cleaning process, compared with washing after crushing into sand, the specific surface area is larger, which is conducive to cleaning and the cleaning effect is better. The stones are easier to drain and the moisture content is reduced. The cleaned stones can be used directly after sand making, avoiding accumulation that occupies space and affects the progress of the project; the separation of stones from sludge is easier, with only a small amount of sand flowing away with the sludge, effectively reducing the accumulation of sand in ditches and pools, reducing the difficulty and cost of sewage treatment, and the cleaning effect and sand making quality are good.

[0030] The bottom of the feed hopper 35 is provided with an annular disk 39 that docks with the roller 33. The annular disk 39 and the roller 33 are rotatably connected through the gap, ensuring that the roller 33 can rotate freely. Inside the annular disk 39, there is a protective sleeve 36 that is sleeved on the rotating shaft 31. The top of the protective sleeve 36 is a pointed guide part 37 that reduces the impact of materials. The protective sleeve 36 protects the rotating shaft 31 and prevents the impact of stones from wearing down the rotating shaft 31. The guide part 37 can guide the stones to both sides to reduce the impact force.

[0031] The outer wall of the roller 33 is equipped with a spiral plate 38 for cleaning the sludge in the chute 21. Because the sludge has poor fluidity, it is easy to deposit in the chute 21. In severe cases, it supports the roller 33 and affects the cleaning effect. The spiral plate 38 can push the sludge deposited in the chute 21 into the soaking tank 2 to ensure the cleaning effect.

[0032] The grading roller 5 has an annular slide rail 51 and a gear disk 52 on its outer wall. A limiting support wheel 53 is installed on the grading bin 4. The grading roller 5 is installed on the grading bin 4 via the annular slide rail 51 and the limiting support wheel 53. A grading motor 54 is installed on the frame of the grading bin 4. The grading motor 54 and the gear disk 52 are driven by gear meshing. An arc-shaped guard plate 58 is installed above the limiting support wheel 53 to prevent stones from falling onto the limiting support wheel. The limiting support wheel 53 supports and limits the grading roller 5. The grading roller 5 is driven by the gear disk 52 and the grading motor 54. The equipment operates stably and reliably.

[0033] The grading roller 5 has a sieve mesh that increases in size along the axial direction. The sieve mesh is formed by a longitudinal support rod 55 and a spiral rod 56. The support rod 55 and the spiral rod 56 have triangular cross sections, with one side of the triangular cross section facing the axis of the grading roller 5. This makes the outer end of the sieve opening larger and the inner end smaller, which can effectively reduce the number of stones stuck in the sieve and extend the cleaning cycle. A spiral pusher plate 57 is installed on the inner wall of the grading roller 5.

[0034] The grading bin 4 is equipped with a material chute 41 corresponding to the grading roller 5. The bottom of the grading bin 4 is equipped with a water collection tank 42. The bottom of the material chute 41 is equipped with a drain hole 43 that communicates with the water collection tank 42. The water collection tank 42 is connected to the soaking tank 2 through a water pump and a water pipe. The soaking tank 2 is connected to the sewage treatment equipment and the sludge filter press equipment through a sludge pump and a sludge pipe. The water used for spraying and rinsing is drained through the drain hole 43 and collected through the water collection tank 42. It is then pumped to the soaking tank 2 through a water pump and a water pipe for initial soaking and rinsing, which can effectively reduce the consumption of cleaning water. The sewage and suspended mud in the soaking tank 2 are pumped to the sewage treatment equipment and the sludge filter press equipment through the sludge pump and sludge pipe for sewage treatment and recycling.

[0035] The grading bin 4 is equipped with a discharge chute 44 at its end. The discharge chute 44 is connected to the crushing device 1 via a return conveyor belt, which transports larger stones back to the crushing device 1 for further crushing.

[0036] The soaking tank 2 is equipped with a sand-lifting device 7, which includes a support frame 71, a chain drive assembly 72, a lifting motor 73, a scooping bucket 74, and a receiving trough 75. The support frame 71 is installed in the soaking tank 2, the chain drive assembly 72 is installed on the support frame 71, the lifting motor 73 is installed on the support frame 71, and the lifting motor 73 is connected to the chain drive assembly 72. The scooping bucket 74 is evenly installed on the chain drive assembly 72, and the receiving trough 75 is installed at the end of the support frame 71. The scooping bucket 74 is evenly provided with drainage mesh holes. The sand that has settled at the bottom of the soaking tank 2 after being washed and removed by the sand-lifting device 7 is recycled from the soil, reducing waste.

[0037] The crushing device 1 is provided with a raw stone inlet 11, a return material inlet 12 and two discharge outlets 13. The raw stone inlet 11 is connected to the raw stone storage bin through a raw stone conveyor belt. The end of the grading roller 5 is connected to the return material inlet 12 through a return material conveyor belt. The two discharge outlets 13 are respectively connected to two turning rollers 3 through conveyor belts.

[0038] The washing drum 3 and the grading drum 5 are equipped with protective covers.

[0039] Work process:

[0040] The raw stone is initially crushed into stones the size of centimeters and then conveyed to the washing drum for soaking. The bottom of the washing drum 3 is immersed in the soaking tank 2. As the washing drum 3 rotates, the stones roll, collide and rub against each other, while water washes away the surface mud and sand. Smaller sand and soil are discharged into the soaking tank 2 through the washing drum 3. The stones are then conveyed into the grading drum for rolling, spraying and cleaning, and grading. The graded stones can be selected as centimeter stones or conveyed to the sand making equipment for sand making according to their size.

[0041] The annular disc 39 and the drum 33 are rotatably connected, ensuring the drum 33 can rotate freely. The protective sleeve 36 protects the rotating shaft 31 from impact and wear by stones. The guide section 37 guides stones to both sides, reducing impact force. Because sludge has poor fluidity and easily deposits in the chute 21, it can severely damage the drum 33, affecting the cleaning effect. The spiral plate 38 pushes the deposited sludge in the chute 21 into the soaking tank 2, ensuring cleaning effectiveness. The limiting support wheel 53 supports and limits the grading drum 5. The gear disc 52 and the grading motor 54 drive the grading drum 5, ensuring stable and reliable equipment operation. The cross-sections of the support rod 55 and the spiral rod 56 are triangular, with one side of the triangular cross-section facing the axis of the grading roller 5. This makes the outer end of the drain hole larger and the inner end smaller, which can effectively reduce the number of stones stuck in the drain hole and extend the cleaning cycle. The water from the spray rinsing is drained through the drain hole 43 and collected through the water collection tank 42. It is then transported to the soaking tank 2 for front-end soaking through the water pump and water pipe, which can effectively reduce the consumption of cleaning water. The sewage in the soaking tank 2 is transported to the sewage treatment equipment and sludge filter press equipment for sewage treatment and recycling through the sludge pump and sludge pipe. The sand after washing is dredged by the sand lifting device 7, and the sand in the soil is recycled to reduce waste.

[0042] Because it involves washing stones, compared to washing after crushing them into sand, the surface area is larger, which is beneficial for washing and results in a better washing effect. The stones are also easier to drain, reducing their moisture content. The washed stones can be used directly after sand making, avoiding accumulation that would occupy space and affect the project progress. Separation of stones from sludge is also easier, with only a small amount of sand flowing away with the sludge, effectively reducing sand accumulation in ditches and pools, lowering the difficulty and cost of sewage treatment, and resulting in good washing effect and high-quality sand.

[0043] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. A washing system for producing washed sand, characterized by: The washing system for producing washed sand comprises a crushing device (1), a soaking pool (2), a turnover washing roller (3), a grading bin (4), a grading roller (5), and a spraying pipe (6). The soaking pool (2) is provided with a chute (21) at one end, the turnover washing roller (3) is obliquely installed on the soaking pool (2), the turnover washing roller (3) is above the chute (21), the front end of the turnover washing roller (3) is in the soaking pool (2), and the crushing device (1) is connected with the turnover washing roller (3) through a conveying belt. The grading roller (5) is rotatably installed on the grading bin (4), the grading roller (5) is butted at the end of the turnover washing roller (3), the spraying pipe (6) is installed on the rack of the grading bin (4), and the spraying pipe (6) extends into the grading roller (5). The turnover washing roller (3) comprises a rotating shaft (31), a driving motor (32), a roller (33), a spiral material guide plate (34), and a feeding hopper (35). The rotating shaft (31) and the driving motor (32) are installed on the soaking pool (2), the driving motor (32) is in transmission connection with the rotating shaft (31), the roller (33) is fixedly installed on the rotating shaft (31), the roller (33) is uniformly provided with mesh holes, the spiral material guide plate (34) is installed on the inner wall of the roller (33), the feeding hopper (35) is sleeved on the rotating shaft (31) and fixed on the support of the soaking pool (2), and the front end of the roller (33) is rotatably sleeved with the end of the feeding hopper (35). The bottom of the feeding hopper (35) is provided with an annular disc (39) butted with the roller (33), the annular disc (39) is provided with a protective sleeve (36) sleeved on the rotating shaft (31), and the top of the protective sleeve (36) is a material guide part (37) in a sharp angle type for reducing material impact. The screening mesh holes of the grading roller (5) are sequentially increased along the axial direction, the screening mesh is formed by longitudinal support rods (55) and spiral rods (56), the cross sections of the support rods (55) and the spiral rods (56) are triangular, one side of the cross section triangular is arranged towards the axis of the grading roller (5), and the inner wall of the grading roller (5) is provided with a spiral material pushing plate (57). The grading bin (4) is provided with a material chute (41) corresponding to the grading of the grading roller (5), the bottom of the grading bin (4) is provided with a water collecting tank (42), the bottom of the material chute (41) is provided with a draining hole (43) in communication with the water collecting tank (42), the water collecting tank (42) is in communication with the soaking pool (2) through a water pump and a water pipe, and the soaking pool (2) is connected with a sewage treatment device and a sludge filter pressing device through a sludge pump and a sludge pipe.

2. A cleaning system for the production of washed sand as claimed in claim 1, characterized in that: The outer wall of the roller (33) is provided with a spiral plate (38) for cleaning the sludge in the chute (21).

3. The cleaning system for producing washed sand according to claim 1 or 2, characterized in that: The outer wall of the grading roller (5) is provided with an annular slide rail (51) and a gear disc (52), the grading bin (4) is provided with a limiting support wheel (53), the grading roller (5) is installed on the grading bin (4) through the annular slide rail (51) and the limiting support wheel (53), the frame of the grading bin (4) is provided with a grading motor (54), and the grading motor (54) is in gear engagement transmission with the gear disc (52); the limiting support wheel (53) is provided with an arc-shaped guard plate (58) above the limiting support wheel (53).

4. A cleaning system for the production of washed sand as claimed in claim 3, characterized in that: The grading bin (4) is provided with a discharge chute (44) at the end, and the discharge chute (44) is connected with the crushing device (1) through a return conveying belt.

5. The cleaning system for producing washed sand of any one of claims 1, 2, 4, wherein: The sand lifting device (7) is installed in the soaking pool (2), and the sand lifting device (7) comprises a support frame (71), a chain transmission assembly (72), a lifting motor (73), a salvage bucket (74) and a receiving chute (75). The support frame (71) is installed in the soaking pool (2), the chain transmission assembly (72) is installed on the support frame (71), the lifting motor (73) is installed on the support frame (71), the lifting motor (73) is in transmission connection with the chain transmission assembly (72), the salvage bucket (74) is uniformly installed on the chain transmission assembly (72), and the receiving chute (75) is installed at the end of the support frame (71). The salvage bucket (74) is uniformly provided with draining mesh holes.

6. The cleaning system for producing washed sand of any one of claims 1, 2, 4, wherein: The crushing device (1) is provided with a raw stone inlet (11), a return material inlet (12) and two discharge outlets (13), the raw stone inlet (11) is connected with a raw stone storage bin through a raw stone conveying belt, the end of the grading roller (5) is connected with the return material inlet (12) through a return conveying belt, and the two discharge outlets (13) are connected with two tumbling rollers (3) through conveying belts.

7. A cleaning system for producing washed sand as claimed in any one of claims 1, 2, 4, characterized in that: The protective cover is installed on the cover of the tumbling roller (3) and the grading roller (5).

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