Construction sand purification apparatus and system

Abstract

The application discloses a construction sand purifying device and system, and belongs to the field of construction sand purification. The device comprises a sand-water mixing conveying device and a purifier. The purifier comprises a purifying pipeline, which comprises an inlet and an outlet. The sand-water mixing conveying device comprises a sand-water pool, a sand-water mixer, a sand-water suction pipeline and a suction pump. When the device is used, the sand-water mixing conveying device sucks sand-water into the purifier, the purifier peels off the harmful substances on the sand body into water, discharges the water from the outlet of the purifier, and separates the sand and water in a sand-water separator, and the harmful substances and waste water are discharged together. The device can remove the harmful substances of sea sand, the content of chloride ions reaches 0.000% to 0.002%, the purified sea sand can reach the state of river sand before entering the sea, and can be used safely like river sand; the device can effectively remove the edges and corners of machine-made sand and the weathering layer on the surface of sand particles; and the device has the remarkable advantages of low cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of construction sand purification, in particular to a construction sand purification device and system. BACKGROUND

[0002] The sea sand in the sea is wrapped by microorganisms, algae, organic matter, fish secretions and inorganic salts to form a layer of harmful substances. Because the contents of microorganisms, algae, organic matter and inorganic salts in seawater in different sea areas are different, the adsorption force of harmful substances attached to the surface of the sea sand is different, resulting in different degrees of difficulty in removal. Practice and research have proved that sea sand cannot be directly used in construction engineering. If sea sand is directly used in construction engineering, it will cause steel corrosion and deterioration of concrete. Therefore, sea sand needs to be purified.

[0003] Traditional sea sand purification mainly focuses on the corrosion of chloride ions to steel, and according to the characteristics that chloride salt has high solubility in water and can quickly dissolve in water. Therefore, the traditional sea sand purification method is the traditional ordinary mechanical washing method. Through water washing, chloride ions are dissolved in water, and then sand and water are separated, and chloride ions dissolved in water are removed with waste water.

[0004] However, the traditional sea sand washing method cannot effectively remove chloride ions in sea sand, so the sea sand washed by the traditional washing method will continuously precipitate chloride ions, and cannot make the chloride ion content in the sea sand reach the grade of river sand, nor can it remove other harmful substances on the surface of the sea sand that cause deterioration of concrete. Therefore, it is necessary to invent a device and system to solve these problems.

[0005] With the depletion of river sand, the use of manufactured sand has begun. At present, most of the manufactured sand contains a certain amount of angular and needle-shaped and part of the weathering residues on the surface of the sand particles, which affects the workability and durability of the manufactured sand. The existing cleaning equipment and process system cannot effectively remove these harmful substances at low cost, and therefore it is necessary to invent a device and system to solve these problems. SUMMARY

[0006] The present application provides a construction sand purification device and system, which can remove harmful substances from sea sand and purify sea sand to the same state as river sand before entering the sea, which can be used safely like river sand; can effectively remove the corners, needle-shaped and weathering layer on the surface of the sand particles of the manufactured sand; and has the advantages of simple structure, stable operation and low cost.

[0007] The present application provides the following technical solutions:

[0008] A construction sand purification device, comprising a sand-water mixing and conveying device and a purifier, wherein:

[0009] The purifier comprises a purifying pipeline and a supporting column, the purifying pipeline is arranged in a spiral structure inclined from top to bottom, and the supporting column is provided with a plurality of lateral branches;

[0010] The upper and lower ports of the purifying pipeline are open structures, the side wall of the purifying pipeline is a closed structure, one of the upper and lower ports of the purifying pipeline is an inlet port, and the other is an outlet port, and a spiral flow channel is formed between the inlet port and the outlet port in the purifying pipeline;

[0011] The sand-water mixing and conveying device comprises a sand-water pool, a sand-water mixer and a sand-water suction and conveying device, the sand-water suction and conveying device comprises a suction pipeline, the first end of the suction pipeline is inserted into the sand-water pool, the second end of the suction pipeline is sealingly connected with the inlet port, and a suction pump is arranged on the suction pipeline.

[0012] Further, the purifying pipeline forming the spiral structure is entirely curved, or the purifying pipeline forming the spiral structure is partly curved and partly linear.

[0013] Further, the purifying pipeline comprises a plurality of pipeline segments, the pipeline segments are linear or curved, the plurality of pipeline segments are sealingly connected in sequence, and the spiral structure is formed; and the disturber is arranged in the pipeline segment in a linear form.

[0014] Further, the flow channel is provided with a disturber for increasing the impact frequency of the sand-water in the purifying pipeline and changing the movement direction and intensity of the sand-water, a disturber mounting port is formed in the side wall of the shell of the purifying pipeline, a cover is sealingly arranged on the disturber mounting port, a disturber mounting limiting groove is arranged in the cover, and the disturber is fixedly arranged on the disturber mounting limiting groove.

[0015] Further, the disturber comprises at least one disturbing object.

[0016] The disturbing object comprises a plurality of disturbing rods, the installation direction of the disturbing rods is perpendicular or inclined to the flow direction of the sand-water, the plurality of disturbing rods are arranged in a longitudinal and transverse staggered manner, a plurality of layers of net structures are formed in the flow direction of the sand-water, the disturbing rods in the plurality of layers are distributed in a staggered manner in the transverse direction, and the disturbing rods in the plurality of layers are distributed in a staggered manner in the longitudinal direction.

[0017] Alternatively, the disturbing object comprises a plurality of layers of baffles, a plurality of holes are formed in the baffles, and the holes of the plurality of layers of baffles are arranged in alignment or in a staggered manner.

[0018] Further, a sealing gasket is arranged between the cover and the disturber mounting port, and the adjacent two pipeline segments are connected in a socket and spigot manner or connected through flange assembly.

[0019] Further, the number of the support columns is one or more, the support columns are vertically arranged inside or outside the spiral structure formed by the purification pipeline, one end of the transverse branch rod is arranged on the support column, and the other end is suspended, and a plurality of the transverse branch rods are distributed on the support column in a spiral structure from top to bottom;

[0020] The support column is further provided with a reinforcing diagonal brace, one end of the reinforcing diagonal brace is fixedly connected with the support column, and the other end is fixedly connected with the transverse branch rod, and the purification pipeline is installed on the transverse branch rod by clamping.

[0021] Further, the purifier further comprises a box body, the purification pipeline, the disturber, the support column, the transverse branch rod and the reinforcing diagonal brace are located inside the box body, and the feed inlet and the discharge outlet of the purification pipeline are in communication with the outside of the box body; the top cover of the box body is openable, the side wall of the box body is openable or the side wall of the box body is provided with an access door.

[0022] Further, the number of the purifiers is multiple, the multiple purifiers are arranged in sequence according to the flow direction of the sand water, the multiple purifiers are arranged horizontally and / or vertically, the discharge outlet of a front purifier is sealingly connected with the feed inlet of a rear purifier, and the feed inlet of a frontmost purifier is sealingly connected with the second end of the suction pipeline.

[0023] Further, the discharge outlet of the last purifier is connected with a sand water collecting pool, and the sand water collecting pool is provided with a sand water splash-proof device.

[0024] Further, the sand water mixer comprises a stirring motor, the stirring motor is located at the upper portion of the sand water pool, a stirring rod is arranged on the output shaft of the stirring motor, a plurality of stirring blades are arranged on the stirring rod, and the stirring blades are located inside the sand water pool.

[0025] Further, a cover plate is arranged above the sand water pool, the stirring motor is arranged above the cover plate in a downward output shaft manner, the stirring rod passes through a first passing hole in the cover plate downwardly to enter the sand water pool, the suction pump is arranged above the cover plate or outside the sand water pool, and the first end of the suction pipeline is inserted into the sand water pool through a second passing hole in the cover plate; a sand inlet is arranged above the cover plate, and the bottom of the sand inlet passes through the cover plate to enter the sand water pool.

[0026] Further, the purifier is arranged along the periphery of the sand water pool, and the sand water pool and the purifier are integrated inside the same box body.

[0027] A construction sand purification system comprises a sand-water separator and the construction sand purification device, and the discharge port of the construction sand purification device is connected with the sand-water separator.

[0028] Further, the construction sand purification device further comprises a raw sand feeding machine, a waste material screening machine and a sand washer arranged in sequence, and the sand washer is connected with the sand pool.

[0029] The present application has the following advantages:

[0030] When the present application is used to purify sea sand, the harmful substances adsorbed on the surface of the sea sand and in the fine cracks and pores can be quickly and fully removed, the content of chloride ions can reach between 0.000% and 0.002%, and the sea sand can be restored to the state of river sand before entering the sea. The purified sea sand after treatment can reach the basic state of river sand before entering the sea and can be safely used in construction projects like river sand. The sea sand purified by the present application will not cause corrosion of the concrete reinforcing steel and deterioration of the concrete after use, and has the significant advantages of good durability and low cost. When the present application is used to purify machine-made sand, the harmful substances on the surface of the sand and the like can be effectively reduced, and the workability and durability of the machine-made sand can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a schematic diagram of the first embodiment of the construction sand purification device of the present application;

[0032] Figure 2 It is a schematic diagram of the second embodiment of the construction sand purification device of the present application;

[0033] Figure 3 It is a schematic diagram of the third embodiment of the construction sand purification device of the present application;

[0034] Figure 4 It is a schematic diagram of the fourth embodiment of the construction sand purification device of the present application;

[0035] Figure 5 It is a schematic diagram of the purification device;

[0036] Figure 6 It is a schematic diagram of the internal structure of the purification device;

[0037] Figure 7 It is a schematic diagram of the support column, the horizontal branch rod and the reinforcing inclined strut;

[0038] Figure 8 It is a schematic diagram of the pipe section and the baffle;

[0039] Figure 9 It is an exploded view of one embodiment of the baffle;

[0040] Figure 10 Schematic view of another embodiment of the blocker;

[0041] Figure 11 Exploded view of still another embodiment of the blocker;

[0042] Figure 12 Side view of the sand-water collection pool;

[0043] Figure 13 Perspective view of the sand-water collection pool;

[0044] Figure 14 Schematic view of the sand-water mixing and conveying device;

[0045] Figure 15 Schematic view of the first embodiment of the construction sand purification system of the present application;

[0046] Figure 16 Schematic view of the second embodiment of the construction sand purification system of the present application. DETAILED DESCRIPTION

[0047] To make the technical problems, technical solutions and advantages to be solved by the present application more clear, the following will be described in detail with reference to the accompanying drawings and specific embodiments.

[0048] Embodiment 1:

[0049] The embodiment of the present application provides a construction sand purification device 100, as shown in the figure, comprising a sand-water mixing and conveying device 1 and a purifier 2, wherein: Figures 1-14

[0050] The purifier 2 comprises a purification pipeline 3 and a support column 4, the purification pipeline 3 is arranged in a spiral shape structure inclined from top to bottom, the upper port and the lower port of the purification pipeline 3 are in an open structure, and the side wall of the purification pipeline 3 is in a closed structure.

[0051] One of the upper port and the lower port of the purification pipeline 3 is a feeding port 5, and the other is a discharging port 6, the purification pipeline 3 is a channel for the flow of the suspended sand-water mixture, the cross-sectional shape of the purification pipeline 3 can be a circular, rectangular or other regular or irregular closed structure, which can meet the airtightness requirement of the internal sand-water mixture flow for positive pressure flow and negative pressure suction, so that the flow channel in the spiral structure is formed between the feeding port 5 and the discharging port 6 in the purification pipeline 3.

[0052] The flow channel is provided with a blocker 24 for increasing the impact frequency of the sand-water in the purification pipeline 3 and changing the direction and intensity of the sand-water movement.

[0053] The support column 4 is provided with a plurality of transverse branches 7, and the purification pipeline 3 is installed on the transverse branches 7. ​

[0054] The sand-water mixing and conveying device 1 comprises a sand-water pool 8 as a mixing container for added sand and water, a sand-water mixer 9 for mixing sand and water to form a suspended sand-water mixture, and a sand-water suction and conveying device. The sand-water suction and conveying device comprises a suction pipe 10, a first end of the suction pipe 10 is inserted into the sand-water pool 8, a second end of the suction pipe 10 is sealingly connected with the feeding port 5, and a suction pump 11 is arranged on the suction pipe 10.

[0055] In use, sand and water are added into the sand-water pool 8, and the sand-water mixer 9 is used to mix the sand and water to form a suspended sand-water mixture under high-speed agitation. The suspended sand-water mixture is sucked into the purification pipe 3 through the suction pipe 10 and the feeding port 5 under the positive pressure or / and negative pressure of the suction pump 11, and is cleaned in the purification pipe 3. Under the action of the suction pump 11, the suspended sand-water mixture in the purification pipe 3 is high-speed jetted, and the sand is repeatedly and strongly impacted and rubbed between the sand and sand, the sand and water, the sand and the inner wall of the purification pipe 3, and the sand and the baffle 24. If the sand is sea sand, the harmful substance film layer on the surface of the sea sand is gradually stripped into the water in the process of impact and rubbing, so that the effect of completely removing the harmful substances such as chloride ions on the surface of the sea sand is achieved. If the sand is machine-made sand, the edges and corners, needle-like shape and weathered layer (if any) on the surface of the sand particles of the machine-made sand are broken and rubbed off. At the same time, the spiral arrangement of the purification pipe 3 also increases the impact speed of the sand during the jetting of the sand-water mixture, and the direction of the sand-water mixture constantly changes along the spiral purification pipe 3, and the harmful substances in the fine cracks of the sand are quickly exchanged with the water outside through the relative impact of the sand and water, so that the harmful substances in the fine cracks of the sand enter the water.

[0056] The sand-water mixture discharged from the discharge port 6 is subjected to sand-water separation by a subsequent sand-water separation device, and the harmful substances removed from the sand and entering the water are discharged together with the water.

[0057] When the present application is used to purify sea sand, the harmful substances adsorbed on the surface of the sea sand and in the fine cracks and pores can be quickly and fully removed, the content of chloride ions can be between 0.000% and 0.002%, the sea sand is restored to the state of river sand before entering the sea, and the purified sea sand after treatment can reach the basic state of river sand before entering the sea, and can be safely used in construction projects like river sand. The sea sand purified by the present application will not cause corrosion of concrete reinforcing steel and deterioration of concrete after use, and has the advantages of good durability and low cost. When the present application is used to purify machine-made sand, the harmful substances such as edges and corners, needle-like shape and weathered layer on the surface of the sand particles of the machine-made sand can be effectively reduced.

[0058] In the present application, the purification pipe 3 forming a spiral structure can be entirely curved, or the purification pipe 3 forming a spiral structure can be partially curved and partially linear.

[0059] As an improvement of an embodiment of the present application, the purification pipe 3 can be provided with a plurality of baffles 24, and the baffles 24 are arranged in the form of a plurality of rows along the length direction of the purification pipe 3. Figures 5-8As shown, the purification pipeline 3 comprises multiple pipeline segments 23, each pipeline segment 23 can be linear or curved, and the multiple pipeline segments 23 are sequentially sealed and spliced to form a spiral structure. Preferably, the blocker 24 is installed inside the linear pipeline segment.

[0060] During the process of the sand-water mixture flowing in the purification pipeline 3, the blocker 24 blocks the sand-water mixture, increases the impact frequency of the sand-water mixture in the purification pipeline 3, changes the movement direction and strength of the sand-water mixture, and the sand impact and friction are more frequent and stronger, which is more conducive to peeling the harmful substance film layer on the sea sand surface into the water, conducive to the harmful substances in the fine cracks of the sea sand entering the water, conducive to eliminating the edges and corners, needle-like and weathered layer of the machine-made sand, and improving the roundness, etc.

[0061] Specifically, one of the examples is shown in Figure 9 , 10 , and 11, the blocker 24 comprises at least one blocking object 26, the outer shell 25 of the purification pipeline 3 is provided with a blocker installation opening 27 on the side wall, the blocker installation opening 27 is provided with a sealing cover 28, a sealing gasket 29 is arranged between the sealing cover 28 and the blocker installation opening 27, which is used to seal the sand-water flow in the blocker 24 from seeping out; the sealing cover 28 is provided with a blocker installation limiting groove 30, which can be inserted and fixed to install the blocker 24, and the blocker 24 is fixedly installed on the blocker installation limiting groove 30.

[0062] The form of the blocking object 26 can be various, for example, one of the forms is shown in Figure 9 , 10 , the blocking object 26 comprises multiple blocking rods, the installation direction of the blocking rods is perpendicular or inclined to the flow direction of the sand-water mixture, the multiple blocking rods are arranged with a certain spacing and longitudinally and transversely intersected, and form a multi-layer mesh structure in the flow direction of the sand-water mixture, which is used to block and change the movement direction of the high-speed mixed flow of the sand-water mixture, and increase the impact and friction between the sand and the sand, the sand and the water, the sand and the inner wall of the purification pipeline 3, and the sand and the blocker 24.

[0063] The multiple layers of transverse blocking rods can be distributed in a staggered manner, and the multiple layers of longitudinal blocking rods can be distributed in a staggered manner, which further improves the effect of blocking and changing the movement direction of the sand-water mixture. The blocking rod can be a common steel bar or a steel bar sprayed with wear-resistant material or other wear-resistant rod parts.

[0064] For another example, another form of the blocking object 26 is shown in Figure 11 , the blocking object 26 can comprise multiple layers of baffles, a plurality of holes are formed on the baffles, the holes are used to pass the sand-water mixture, and the holes of the multiple layers of baffles are arranged in alignment or in a staggered manner. The baffle can be made of organic or inorganic wear-resistant material.

[0065] The blocking object can also have various shapes and various materials, and any blocking object that changes the direction and speed of sand and water movement falls within the protection scope of the present application.

[0066] The number of installed blocking objects can be determined according to requirements and is not limited to one, but can be multiple, and is only schematically described in the drawings; the number, length, shape, etc. of the blocking objects 24 can be set according to the difficulty of sand cleaning, and the materials of the purification pipeline 3 and the shell 25 of the blocking object 24 can be ordinary steel or wear-resistant steel welded, cast or stamped, or can be other organic or inorganic materials prefabricated or assembled.

[0067] The adjacent two pipeline segments 23 can be connected by a socket joint or assembled by a flange.

[0068] As another improvement of the embodiment of the present application, the number of support columns 4 can be one or multiple, and the support columns 4 are vertically arranged inside or outside the spiral structure formed by the purification pipeline 3; when the number of support columns 4 is one, as shown in the figure, one end of the horizontal branch 7 is arranged on the support column 4, and the other end is suspended, forming a structure similar to a tree branch; the horizontal branches 7 are distributed on the support column 4 in a spiral structure from top to bottom. Figure 7

[0069] The support column 4 can also be provided with a reinforcing diagonal brace 19, one end of the reinforcing diagonal brace 19 is fixedly connected with the support column 4, and the other end is fixedly connected with the horizontal branch 7, which plays a role in reinforcing and fixing the horizontal branch 7, and the purification pipeline 3 can be installed on the horizontal branch 7 through a clamping structure.

[0070] The purifier 2 can also include a box body 20, and the purification pipeline 3, the blocking object 24, the support column 4, the horizontal branch 7 and the reinforcing diagonal brace 19 are located inside the box body 20, and the inlet 5 and the outlet 6 of the purification pipeline 3 are in communication with the outside of the box body 20. The inlet 5 and the outlet 6 of the purification pipeline can extend out of the box body 20 from the side wall of the box body 20, or the inlet 5 and the outlet 6 of the purification pipeline are located inside the box body 20 and installation door holes are provided at their positions.

[0071] The bottom end of the support column 4 can be provided with a column foot 31, and the support column 4 is fixedly arranged at the bottom end inside the box body 20 through the column foot 31.

[0072] The top cover 21 of the box body 20 can be opened and closed, and the top cover 21 can be in the form of a flip or pull-open switch for installing various structures inside the box body 20. The side wall of the box body 20 can be opened and closed, or the box body 20 is provided with an access door 22 on the top, which is used for maintenance and replacement of the blocking object 24. The access door 22 is preferably arranged at the position of the blocking object, which is convenient for maintenance or replacement of the blocking object.

[0073] ​The purifier 2 of the present application forms a closed structure through the box 20, which is a standardized module, and has the remarkable features of simple structure, convenient manufacturing, low cost and convenient transportation. According to the difficulty of cleaning different sands and the land conditions of sand cleaning plants, multiple purifiers 2 can be used and flexibly assembled in multiple dimensions to meet the complex production conditions of different sand cleaning, and can be made into a container type and transported by car to the required place, which is particularly suitable for small-scale and frequently moved sand cleaning occasions and has a wide market prospect.

[0074] In another structure, the purifiers 2 can be arranged along the periphery of the sand water pool 8, and the sand water pool 8 and the purifiers 2 are integrated in the same box 20. That is, the sand water pool 8 and its auxiliary equipment (stirrer, suction pump, etc.) are arranged in the middle, the purifiers 2 are arranged along the periphery of the sand water pool 8, and the sand water pool 8 and the purifiers 2 are integrated in one box.

[0075] When the number of purifiers 2 is multiple, the multiple purifiers 2 are arranged in sequence according to the flow direction of the sand water, and the multiple purifiers 2 are arranged horizontally, vertically or mixed horizontally and vertically, the discharge port 6 of the front purifier 2 is sealingly connected with the feeding port 5 of the rear purifier 2, the feeding port 5 of the frontmost purifier 2 is sealingly connected with the second end of the suction pipeline 10, and the discharge port 6 of the last purifier 2 serves as the discharge port of the entire construction sand cleaning device.

[0076] Specifically, the number of repeated purifiers 2 in the construction sand cleaning device of the present application is not limited to one, two, three, four, five or six; the multiple purifiers 2 can be arranged horizontally, so that the construction sand cleaning device comprises a sand water mixing and conveying device 1 and a plurality of groups of standard purifiers 2 arranged horizontally, as shown in Figure 2 ; the multiple purifiers 2 can also be arranged vertically, so that the construction sand cleaning device comprises a sand water mixing and conveying device 1 and a plurality of groups of standard purifiers 2 stacked vertically, as shown in Figure 3 ; and the multiple purifiers 2 can also be arranged horizontally and vertically, as shown in Figure 4 .

[0077] The discharge port 6 of the last purifier 2 is connected with a sand water collecting pool 16, and the sand water collecting pool 16 is provided with a sand water splash-proof device, such as a cover plate, etc.; and the sand water collecting pool 16 is provided with a collecting discharge port 17, as shown in Figure 12 , 13 .

[0078] The present application does not limit the specific structure of the sand water mixing and conveying device 1, and in one example, as shown in Figure 14As shown, the sand-water mixer 9 of the sand-water mixture conveying device 1 comprises a stirring motor 12 located at the upper portion of the sand-water pool 8, a stirring rod 13 provided on the output shaft of the stirring motor 12, and a plurality of stirring blades 14 provided on the stirring rod 13 and located inside the sand-water pool 8.

[0079] A cover plate 15 can be provided above the sand-water pool 8, the stirring motor 12 is arranged above the cover plate 15 in a downward output shaft manner, the stirring rod 13 penetrates through a first passing hole on the cover plate 15 downward into the sand-water pool 8, and the stirring blades 14 on the lower end of the stirring rod 13 are driven by the stirring motor 12 to stir the sand and water in the sand-water pool 8 to rotate at a high speed to form a suspended sand-water mixture flow.

[0080] The suction pump 11 can be arranged above the cover plate 15 or outside the sand-water pool 8, and the first end of the suction pipe 10 is inserted into the sand-water pool 8 through a second passing hole on the cover plate 15.

[0081] The cover plate 15 is provided with a sand inlet 18, and the bottom of the sand inlet 18 penetrates through the cover plate 15 into the sand-water pool 8.

[0082] Embodiment 2:

[0083] The embodiment of the present application provides a construction sand purification system, which comprises a sand-water separation machine 200 and the construction sand purification device 100 as described in the embodiment 1, and the discharge port 101 of the construction sand purification device 100 is connected with the sand-water separation machine 200. Figure 15 、 16 As shown, the sand-water separation machine 200 and the construction sand purification device 100 as described in the embodiment 1 are provided, and the discharge port 101 of the construction sand purification device 100 is connected with the sand-water separation machine 200. When there is only one purifier 2, the discharge port 6 of the purifier 2 is the discharge port 101 of the construction sand purification device 100, and when there are a plurality of purifiers 2, the discharge port 6 of the last purifier 2 is the discharge port 101 of the construction sand purification device 100.

[0084] In use, the construction sand purification device 100 strips the harmful substances on the surface of the sand into the water, discharges the sand-water mixture through the discharge port 101, separates the sand and the water through the sand-water separation machine 200, discharges the harmful substances removed from the sand into the water together with the water, and obtains qualified finished product purified sand.

[0085] Optionally, the sand-water separation machine 200 can be a centrifugal sand-water separation machine, a spiral sand washing machine, a chain bucket sand washing machine or the like.

[0086] The construction sand purification device 100 can further comprise a raw sand feeding machine 300, a waste material screening machine 400 and a sand washing machine 500 arranged in sequence, and the sand washing machine 500 is connected with the sand-water pool 8.

[0087] During production, raw sand is transported by a loader or a self-unloading silo, and then lifted by a raw sand feeder 300 to a high waste screening machine 400, where large particles of solid waste are removed.

[0088] After removing large solid waste particles, the sand enters the sand washing machine 500 for processing. The mud layer on the surface of the original sand is washed away. The sand washing machine 500 can be equipped with a flushing tank. The flushing tank is set at an incline with its inlet higher than its outlet. The sand screened by the waste screening machine enters the flushing tank. High-pressure water is pumped into the flushing tank. Under the combined action of water power and the sand's own weight, the mixture of sand and water flows at high speed from high to low in the flushing tank. The sand in the flushing tank is washed away by the high-speed water flow, removing the mud layer and other harmful substances from the surface of the original sand.

[0089] The sand washed by the sand washing machine 500 can be directly fed into the sand-water tank 8 through the sand inlet hopper 18, such as... Figure 15 As shown; or after further sand-water separation by a sand-water separator 600, the sand enters the sand-water tank 8 through the sand inlet hopper 18, as shown. Figure 16 As shown, the sand-water separator 600 can be a centrifugal sand-water separator, a spiral sand washing machine, or other sand-water separators with sand-water separation function.

[0090] The construction sand purification system of this embodiment includes all the technical solutions of the construction sand purification device described in Embodiment 1, and thus possesses the beneficial effects described in Embodiment 1, which will not be repeated here. For other aspects not mentioned in this embodiment, please refer to the corresponding content in the aforementioned Embodiment 1.

[0091] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A construction sand purification apparatus, characterized by, The sand-water mixed conveying device and the purifier are included, wherein: The purifier includes a purifying pipeline and a supporting column, the purifying pipeline is arranged in a spiral structure which is inclined from top to bottom, and the supporting column is provided with a plurality of lateral branches, and the purifying pipeline is installed on the lateral branches; The upper port and the lower port of the purifying pipeline are open structures, the side wall of the purifying pipeline is a closed structure, one of the upper port and the lower port of the purifying pipeline is an inlet, and the other is an outlet, and a spiral flow channel is formed between the inlet and the outlet in the purifying pipeline; The sand-water mixed conveying device includes a sand-water pool, a sand-water mixer and a sand-water suction conveying device, the sand-water suction conveying device includes a suction pipeline, the first end of the suction pipeline is inserted into the sand-water pool, the second end of the suction pipeline is sealingly connected with the inlet, and a suction pump is arranged on the suction pipeline; A disturbance device is arranged in the flow channel to increase the impact frequency of the sand-water in the purifying pipeline and change the direction and strength of the sand-water movement, a disturbance device mounting port is formed in the side wall of the outer shell of the purifying pipeline, a cover is sealingly arranged on the disturbance device mounting port, a disturbance device mounting limiting groove is arranged in the cover, and the disturbance device is fixedly installed on the disturbance device mounting limiting groove; The disturbance device includes at least one disturbance object; The disturbance object includes a plurality of disturbance rods, the installation direction of the disturbance rods is perpendicular or inclined to the flow direction of the sand-water, the plurality of disturbance rods are arranged in a longitudinal and transverse staggered manner to form a multi-layer mesh structure in the flow direction of the sand-water, and the multi-layer transverse disturbance rods are distributed in a staggered manner, and the multi-layer longitudinal disturbance rods are distributed in a staggered manner. The cross-sectional shape of the purifying pipeline is circular.

2. The construction sand purification apparatus of claim 1, wherein The purifying pipeline includes a plurality of pipeline segments, the pipeline segments are linear or curved, the plurality of pipeline segments are sealingly connected in sequence to form the spiral structure.

3. The construction sand purification apparatus of claim 2, wherein A sealing gasket is arranged between the cover and the disturbance device mounting port, and the adjacent two pipeline segments are connected in a socket joint or connected by flange assembly.

4. The construction sand purification apparatus of any one of claims 1-3, wherein, The number of the supporting columns is one or more, the supporting columns are vertically arranged inside or outside the spiral structure formed by the purifying pipeline, one end of the lateral branch is arranged on the supporting column, and the other end is suspended, and the plurality of lateral branches are distributed in a spiral structure from top to bottom on the supporting column; The supporting column is further provided with a reinforcing diagonal brace, one end of the reinforcing diagonal brace is fixedly connected with the supporting column, and the other end is fixedly connected with the lateral branch, and the purifying pipeline is installed on the lateral branch by clamping.

5. The construction sand purification apparatus of claim 4, wherein The purifier further includes a box body, the purifying pipeline, the disturbance device, the supporting column, the lateral branch and the reinforcing diagonal brace are located inside the box body, the inlet and the outlet of the purifying pipeline are in communication with the outside of the box body, the top cover of the box body is openable, the side wall of the box body is openable, or the side wall of the box body is provided with an access door.

6. The construction sand purification apparatus of claim 5, wherein The number of the purifiers is multiple, the multiple purifiers are arranged in sequence according to the flow direction of the sand water, the multiple purifiers are arranged horizontally and / or vertically, the discharge port of a previous purifier is in sealing connection with the feeding port of a subsequent purifier, the feeding port of the first purifier is in sealing connection with the second end of the suction pipeline.

7. The construction sand purification apparatus of claim 6, wherein The discharge port of the last purifier is connected with a sand water collecting pool, and the sand water collecting pool is provided with a sand water splash-proof device.

8. The construction sand purification apparatus of claim 7, wherein The sand water mixer comprises a stirring motor, the stirring motor is located at the upper portion of the sand water pool, an output shaft of the stirring motor is provided with a stirring rod, and a plurality of stirring blades are arranged on the stirring rod and located in the sand water pool.

9. The construction sand purification apparatus of claim 8, wherein, A cover plate is arranged above the sand water pool, the stirring motor is arranged above the cover plate in a downward output shaft manner, the stirring rod passes through a first through hole in the cover plate downward into the sand water pool, the suction pump is arranged above the cover plate or outside the sand water pool, and a first end of the suction pipeline is inserted into the sand water pool through a second through hole in the cover plate; a sand feeding hopper is arranged above the cover plate, and the bottom of the sand feeding hopper passes through the cover plate into the sand water pool.

10. The construction sand purification apparatus of claim 9, wherein, The purifiers are arranged along the periphery of the sand water pool, and the sand water pool and the purifiers are integrated in the same box.

11. A construction sand purification system, comprising a sand water separator and the construction sand purification device according to any one of claims 1-10, wherein the discharge port of the construction sand purification device is connected with the sand water separator.

12. The construction sand purification system of claim 11, wherein, The construction sand purification device further comprises a raw sand feeding machine, a waste material screening machine and a sand washer arranged in sequence in front of the construction sand purification device, and the sand washer is connected with the sand water pool.

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