CN221544317U - Mud-sand separation desliming sorter for building - Google Patents

Abstract

A mud and sand separation and desludging classification device for construction includes a feeding device, a cleaning device and a classification device. A silo is provided at the upper end of the cleaning device, a turntable is provided horizontally on the top of the silo, the outer circumference of the turntable is fixed to a uniformly distributed hopper by a fixing pin, and a nozzle is provided on one side of the silo; a water-passing net is provided at the bottom of the silo, a Y-shaped sedimentation tank is provided at the lower part of the water-passing net, a re-filtering net and a residual mud box are provided at the bottom of the clear liquid tank, a flocculant box is provided outside the clear liquid tank, and the flocculant is injected into the clear liquid tank through a pipeline; a spiral mud cleaner is provided at the bottom of the sedimentation tank, the spiral mud cleaner chamber is connected to a filter press, and the filter press is connected to a filter press motor; a primary liquid tank is provided at the bottom of the sedimentation tank, and the primary liquid tank is connected to the sedimentation tank through an internal primary water pump. The utility model reduces the cost of sending mud and sewage by filter pressing treatment in the case of serious waste of water and soil erosion and sand washing water resources, and in order to prevent direct discharge and pollution of the environment, the purpose of environmental protection is achieved and the requirements of environmental protection are met.

Description

A mud and sand separation and desludging classification device for construction

Technical Field

The utility model belongs to the field of construction engineering equipment and relates to a mud-sand separation and desludging classification device for construction.

Background Art

As the country's requirements for environmental protection become more and more stringent, the treatment of sand washing mud has received more and more attention. In modern mining production, the treatment of sand washing mud in the sand washing plant is a very important task. Whether it is machine-made sand or natural sand, a large amount of mud will be generated during its operation. Although the mud will undergo simple concentration and digestion, it is still in a liquid flow state and the volume is still large, which makes it very difficult to transport and handle.

The traditional sand washing treatment method is: first, put the sand and gravel containing sludge into the sand washing equipment, and wash the sludge and impurities in the sand and gravel from the surface of the sand and gravel through the impact and stirring of the water flow; the sand washing sludge and water mixture enters the sedimentation tank, and through the principle of natural sedimentation, the heavier sand particles are settled to the bottom of the sludge tank, and the clean water flows out from the top of the tank; the sludge taken from the bottom of the sedimentation tank generally contains a certain amount of water. In order to reduce the volume and moisture content of the sludge, concentration treatment can be used. Common concentration methods include centrifugal concentration, gravity concentration and filter pressing; the concentrated sludge needs to further reduce the moisture content. Dehydration refers to the use of mechanical or chemical methods to remove moisture from the sludge to achieve a certain solid moisture content. Common dehydration methods include filter pressing, centrifugal dehydration, drying, etc.; the treated sludge can be disposed of in a variety of ways. Common treatment methods include incineration, landfill, composting and resource utilization. The specific treatment method to be selected depends on factors such as the characteristics of the sludge, environmental requirements and economic considerations, but the traditional process is complex and the equipment is huge.

Utility Model Content

The technical problem to be solved by the utility model is to provide a mud and sand separation and desludging classification device for construction, comprising a feeding device, a cleaning device and a classification device, wherein a silo is arranged at the upper end of the cleaning device, a turntable is arranged horizontally on the top of the silo, the turntable is connected to a rotating motor through a central rotating shaft, the outer circumference of the turntable is fixed to a uniformly distributed hopper through a fixing pin, and water leakage holes are uniformly distributed on the surface of the hopper; a high-pressure spray rod is arranged on one side of the silo, nozzles are uniformly distributed horizontally on the spray rod, and spray holes are uniformly distributed on the nozzles; the spray rod is connected to a clear liquid tank through a water pump at the bottom of the silo; a water-passing net is arranged at the bottom of the silo, a Y-shaped sedimentation tank is arranged at the lower part of the water-passing net, a primary water filter net is arranged in the center of the sedimentation tank, and overflow walls are arranged on both sides of the sedimentation tank; the overflow wall An overflow hole is provided at the upper end; the overflow hole is connected with the clear liquid tanks on both sides of the sedimentation tank, a re-filter screen and a residual mud box are provided at the bottom of the clear liquid tank, a flocculant box is provided outside the clear liquid tank, and the flocculant is injected into the clear liquid tank through a pipeline; a spiral mud cleaner is provided at the bottom of the sedimentation tank, the spiral mud cleaner is connected through a mud cleaning motor, the spiral mud cleaner chamber is connected with the filter press, and the filter press is connected to the filter press motor; a primary liquid tank is provided at the bottom of the sedimentation tank, and the primary liquid tank is connected to the sedimentation tank through an internal primary water pump; a porous plate is provided at the bottom of the filter press; a classification device is provided on the other side of the silo, a conveyor belt is provided on the upper part of the classification device, and a coarse sand net, a medium sand net, a medium sand slope, a fine sand net, a fine sand slope, and a coarse sand slope are provided in sequence at the lower part of the conveyor belt.

The spray pressure of the nozzle is 5MPa-7MPa. The transmission ratio of the rotating motor to the turntable is 15:1. The water leakage hole is slightly smaller than the sand grains. The water content of the mud after the filter press is 15%-30%. The angle range between the coarse sand net and the medium sand net, and between the medium sand net and the fine sand net is: 10°-30°.

Compared with the prior art, the utility model has the following advantages:

1. The utility model uses multi-stage sieves to separate sand and gravel raw materials into fine sand, medium sand and coarse sand through sieves with different mesh apertures. The screening accuracy is high, which replaces the manual sorting of sand and gravel, saves time and labor, and improves work efficiency;

2. The heavy metal content in the mud is high, and the soil is polluted where it is piled. The water content of the mud is high, and the water content of the undewatered mud is mostly above 98%, resulting in high transportation costs, large stacking area, and blockage of garbage leachate pipes. Through flocculation, filter press, etc., the tax content of the sludge can be filtered to 15%-30%.

Mud can easily cause serious pollution to the air and environment. Through sedimentation purification and timely treatment, it can achieve the purpose of environmentally friendly backfilling and utilization. Sand washing can timely treat a large amount of dust and particles in the mud to reduce air pollution and dust particles that can cause harm to the human body.

3. The flocculant in the chemical system is stirred and pumped to the deep cone mud separation tank to react with the mud in the mud collection tank. After mixing, the sludge and clean water are separated and precipitated, and the clean water enters the clean water tank.

4. Use a special pump to send the mud into the plate and frame filter press, select the plate and frame filter press to squeeze the flocculated mud, and the clean water is discharged through the filter press for recycling. The purpose of mud and water separation is achieved, the mud becomes mud cake, and the sewage becomes clean water. The clean water can be discharged directly, and the mud cake can be directly transported or landfilled on site, which meets the requirements of environmental protection.

5. The sand washing mud treatment plan is mainly to optimize the design of the mud treatment equipment, improve the working efficiency of the sand washing machine, and the cost of mud treatment, so that the mud generated by the sand washing machine in the sand washing process can be fully and effectively utilized and reduce environmental pollution. Our sand washing mud treatment system process not only meets the national environmental protection requirements, but also realizes the reuse of waste resources.

BRIEF DESCRIPTION OF THE DRAWINGS

The specific implementation modes of the present utility model are further described in detail below in conjunction with the accompanying drawings.

FIG1 is a schematic diagram of the structure of the utility model.

FIG. 2 is a side view of the utility model.

FIG3 is a top view of the filter press of the present invention.

FIG. 4 is a partial view of the cleaning part of the utility model.

Fig. 5 is a top view of the feeding of the present utility model.

FIG. 6 is a schematic diagram of the main structure of the utility model.

In the figure: 1—feeding device 2—cleaning device 3—classification device 4—silo 5—turntable 6—central rotating shaft 7—rotating motor 8—fixing pin 9—hopper 10—leakage hole 11—spray rod 12—spray head 13—spray hole 14—water pump 15—water pass net 16—sedimentation tank 17—primary water filter net 18—overflow wall 19—overflow hole 20—clear liquid tank 21—re-filter net 22—residual mud box 23—flocculant box 24—pipeline 25—flocculant 26—screw mud cleaner 27—mud cleaning motor 28—filter press 29—primary liquid tank 30—primary water pump 31—porous plate 32—conveyor belt 33—coarse sand net 34—medium sand slide 35—medium sand net 36—fine sand net 37—fine sand slide 38—Filter press motor 39—Coarse sand sliding down the slope.

DETAILED DESCRIPTION

As shown in Figures 1 to 6, a mud and sand separation and desludging classification device for construction includes a feeding device 1, a cleaning device 2 and a classification device 3. A silo 4 is provided at the upper end of the cleaning device 2, a turntable 5 is horizontally provided on the top of the silo 4, the turntable 5 is connected to a rotating motor 7 through a central rotating shaft 6, the outer circumference of the turntable 5 is fixed to a uniformly distributed hopper 9 through a fixing pin 8, and water leakage holes 10 are evenly distributed on the surface of the hopper 9; a high-pressure spray rod 11 is provided on one side of the silo 4, nozzles 12 are uniformly distributed horizontally on the spray rod 11, and spray holes 13 are evenly distributed on the nozzles 12; the spray rod 11 is connected to a clear liquid tank 20 through a water pump 14 at the bottom of the silo 4; a water mesh 15 is provided at the bottom of the silo 4, a Y-shaped sedimentation tank 16 is provided at the lower part of the water mesh 15, a primary water filter 17 is provided at the center of the sedimentation tank 16, and overflow walls 18 are provided on both sides of the sedimentation tank 16; an overflow hole 19 is provided at the upper end of the overflow wall 18; the overflow hole 19 and The clear liquid tanks 20 on both sides of the sedimentation tank 16 are connected, and a re-filter screen 21 and a residual mud box 22 are provided at the bottom of the clear liquid tank 20. A flocculant box 23 is provided outside the clear liquid tank 20, and a flocculant 25 is injected into the clear liquid tank 20 through a pipeline 24; a spiral mud cleaner 26 is provided at the bottom of the sedimentation tank 16, and the spiral mud cleaner 26 is connected through a mud cleaning motor 27. The chamber of the spiral mud cleaner 26 is connected to a filter press 28, and the filter press 28 is connected to a filter press motor 38; a primary liquid tank 29 is provided at the bottom of the sedimentation tank 16, and the primary liquid tank 29 is connected to the sedimentation tank 16 through an internal primary water pump 30; a porous plate 31 is provided at the bottom of the filter press 28; a classification device 3 is provided on the other side of the silo 4, a conveyor belt 32 is provided on the upper part of the classification device 3, and a coarse sand net 33, a medium sand net 35, a medium sand slide 34, a fine sand net 36, a fine sand slide 37, and a coarse sand slide 39 are provided in sequence at the lower part of the conveyor belt 32. The spray pressure of the nozzle 12 is 5MPa-7MPa. The transmission ratio of the rotating motor 7 to the turntable 5 is 15:1. The water leakage hole 10 is slightly smaller than the sand particles. The water content of the mud after the filter press 28 is 15%-30%. The angle range between the coarse sand net and the medium sand net, and the medium sand net and the fine sand net is: 10°-30°.

During specific use, the feeding device 1 transports the material to the cleaning device 2, the nozzle 12 sprays clear liquid on the material for cleaning, and then enters the silo 4. The hopper 9 shovels the material in the silo 4 into the classification device 3 through the rotation of the turntable 5, and the cleaned sand is transported to the coarse sand net 33 through the conveyor belt 32. The coarse sand enters the medium sand chute 34 through the pipeline, and the medium sand enters the fine sand net 36 after being screened by the medium sand net 35, and enters the fine sand chute 37 after passing through the fine sand net 36; the filter press 28 is controlled by the filter press motor 38, and the coarse sand reaches the ground through the coarse sand chute 39. A flocculant tank 23 is provided outside the clear liquid tank 20, and a flocculant 25 is injected into the clear liquid tank 20 through a pipeline 24; a spiral mud cleaner 26 is provided at the bottom of the sedimentation tank 16, and the spiral mud cleaner 26 transports the sludge to the filter press 28 through a mud cleaning motor 27. The remaining water after passing through the primary water filter 17 enters the primary liquid tank 29 at the bottom of the spiral mud cleaner 26 and is then transported to the sedimentation tank 16 through a primary water pump 30.

The above are preferred implementation modes of the present invention. Technicians in the field of the present invention can also change and modify the above implementation modes. Therefore, the present invention is not limited to the above specific implementation modes. Any obvious improvements, substitutions or modifications made by technicians in this field on the basis of the present invention belong to the protection scope of the present invention.

Claims (6)

1. A mud and sand separation and desludging classification device for construction, comprising a feeding device (1), a cleaning device (2) and a classification device (3), characterized in that: a silo (4) is provided at the upper end of the cleaning device (2), a turntable (5) is provided laterally on the top of the silo (4), the turntable (5) is connected to a rotating motor (7) via a central rotating shaft (6), the outer circumferential surface of the turntable (5) is fixed to a uniformly distributed hopper (9) via a fixing pin (8), and the surface of the hopper (9) is uniformly distributed with water leakage holes (10); a high-pressure spray rod (10) is provided on one side of the silo (4) 1), nozzles (12) are evenly distributed horizontally on the spray bar (11), and spray holes (13) are evenly distributed on the nozzles (12); the spray bar (11) is connected to the clear liquid tank (20) through a water pump (14) at the bottom of the receiving bin (4); a water passing net (15) is provided at the bottom of the bin (4), a Y-shaped sedimentation tank (16) is provided at the lower part of the water passing net (15), a primary water filter net (17) is provided at the center of the sedimentation tank (16), and overflow walls (18) are provided on both sides of the sedimentation tank (16); an overflow hole (19) is provided at the upper end of the overflow wall (18); the overflow hole (19) ) is connected to the clear liquid tank (20) on both sides of the sedimentation tank (16), a secondary filter screen (21) and a residual mud box (22) are provided at the bottom of the clear liquid tank (20), a flocculant box (23) is provided outside the clear liquid tank (20), and a flocculant (25) is injected into the clear liquid tank (20) through a pipeline (24); a spiral mud cleaner (26) is provided at the bottom of the sedimentation tank (16), the spiral mud cleaner (26) is connected through a mud cleaning motor (27), the chamber of the spiral mud cleaner (26) is connected to a filter press (28), and the filter press (28) is connected to the filter press motor (3 8) connection; a preliminary liquid pool (29) is provided at the bottom of the sedimentation tank (16), and the preliminary liquid pool (29) is connected to the sedimentation tank (16) through a preliminary water pump (30) provided therein; a porous plate (31) is provided at the bottom of the filter press (28); a classification device (3) is provided at the other side of the silo (4), a conveyor belt (32) is provided at the top of the classification device (3), and a coarse sand net (33), a medium sand net (35), a medium sand slide (34), a fine sand net (36), a fine sand slide (37), and a coarse sand slide (39) are provided at the bottom of the conveyor belt (32) in sequence. 2. A mud-sand separation and desludging classification device for construction according to claim 1, characterized in that the spraying pressure of the nozzle (12) is 5MPa-7MPa. 3. A mud-sand separation and desludging classification device for construction according to claim 1, characterized in that the transmission ratio between the rotating motor (7) and the rotating disk (5) is 15:1. 4. A mud-sand separation and desludging classification device for construction according to claim 1, characterized in that: the leakage hole (10) is slightly smaller than the sand particles. 5. A mud-sand separation and desludging classification device for construction according to claim 1, characterized in that the water content of the mud after filtration by the filter press (28) is 15%-30%. 6. A mud-sand separation and desludging classification device for construction according to claim 1, characterized in that the angle between the coarse sand net (33) and the medium sand net (35), and the angle between the medium sand net (35) and the fine sand net (36) is in the range of 10°-30°.