CN103127760A - Wide water-storage dewatering screen assembly dedicated to sand-water separation system and sand-water separation method - Google Patents

Abstract

The invention relates to a wide-width water-storage dewatering screen assembly and a sand-water separation method for a sand-water separation system that can effectively separate mud, water and sand in a mud-water mixture and efficiently dehydrate sand and water , including a dewatering screen, the dewatering screen is a wide water storage type dewatering screen, the wide water storage type dewatering screen is a frame structure, the upper bottom plate of the frame is a polyurethane sieve plate, and the lower end sieve plate of the frame type wide water storage type dewatering screen It is an outwardly inclined open façade screen mesh plate and the frame-type wide water storage dewatering screen is tilted on the frame through the shock absorber. The wide water storage dewatering screen is driven by an exciting motor, and the wide water storage tank is located Below the wide water storage dehydration screen. Advantages: First, the separation efficiency of sand and water is high. When the size of the wide screen reaches 3 meters by 5.5 meters, it can process 300 cubic meters of water per hour; second, it has the function of sand and water; third, it has a water storage room for sand and water The first precipitation is separated, and the overflow mechanism increases the storage capacity of the water storage chamber once the sand wall is formed in the front section.

Description

Wide-width water storage dewatering screen assembly and sand-water separation method for sand-water separation system

technical field

The invention relates to a wide-width water-storage dewatering screen assembly and a sand-water separation method for a sand-water separation system that can effectively separate mud, water and sand in a mud-water mixture and efficiently dehydrate sand and water , which belongs to the field of manufacturing wide-width water storage dewatering screen assembly for sand-water separation system.

Background technique

1. CN201524486U, name "sand water separation and recovery system", which includes mud and sand water classification equipment, sand dewatering equipment and mud dehydration equipment; the mud and sand water classification equipment includes a working cylinder, a feeding pipe, an overflow pipe, and a sand outlet , the feed pipe and the overflow pipe are fixedly connected around the working cylinder, the grit chamber is arranged at the lower end of the working cylinder, and the working cylinder is a hollow cylinder connected with a An inverted cone communicating with the cylinder; the sand dewatering equipment includes a screen box, a vibrator, a support system and a motor; the overflow pipe of the mud sand water classification equipment is connected to the feed port of the mud dewatering equipment, so The grit chamber of the mud-sand water classification equipment is connected with the sieve body of the dewatering screen. Its shortcomings: first, the sand-water separation efficiency is low, and it is impossible to realize the co-advancement of sand and water, and work directly with water; Just can't realize continuous dehydration in the middle of operation.

2. In the context of cobblestones and other water-based extraction of machine-made sand and raw sand, the current market basically adopts: drum type sand washing machine, winch cage type sand twisting machine and wheel type sand lifting machine and some areas. The bucket-lift sand lifter is used to extract coarse sand. When the above methods are used alone, there are serious tailings. Not only does the water content of the finished products prepared by the above-mentioned equipment remain high, but the gradation of the produced machine-made sand and raw sand products is unreasonable, and the medium and fine sand run out seriously, and the finished products with qualified grading cannot be obtained, which has caused Serious waste, but also secondary pollution caused by the environment, etc. For this reason, in order to achieve the gradation of qualified machine-made sand and original sand, and to prevent secondary pollution, the manufacturer has to be equipped with a dehydrator and a tailing There are many auxiliary equipment such as sand recovery devices, which have caused many problems such as excessive investment in equipment in the system, high unit price, large floor area, and excessive power consumption.

Contents of the invention

Design purpose: to avoid the deficiencies in the background technology, to design a system that can effectively separate the mud, water and sand in the sediment-water mixture, and dehydrate sand and water efficiently, while occupying a small area and energy consumption. The special wide-width water storage dewatering screen assembly and sand-water separation method for the sand-water separation system.

Design scheme: In order to achieve the above design purpose. 1, the design of wide water storage type dewatering screen is one of technical characterictic of the present invention. The purpose of doing this is: because the wide-width water storage dewatering screen is a frame structure, the upper bottom plate of the frame is a polyurethane screen orifice plate, and the lower end sieve plate of the frame-type wide water storage dewatering screen is an outwardly inclined open facade screen Orifice plate, when the orifice plate of the outwardly inclined open facade screen is driven by the excitation motor, the motion track formed by the frame-type wide-width water storage dewatering screen is a front and rear linear walking motion that includes up and down jumps, so when the vibration When the sediment-water mixture washed down from the sieve reaches the screen orifice of the outwardly inclined open facade (since the wall is made of polyurethane screen orifice, it has the function of separating coarse sand and water), the outward inclination The open façade screen hole plate forces the sand and water to separate, and the coarse sand left on the screen surface of the wide-width water storage dewatering screen naturally forms a sand wall on the bottom plate of the wide-width water storage dewatering screen polyurethane screen. And under the action of the exciting motor, the sand wall is pushed towards the front end of the dewatering screen, and the dewatering is continued during the operation to obtain dewatered sand; The channel formed between the deflector plate and the outwardly inclined open façade screen mesh plate is an overflow channel, which allows the machine sand and muddy water that has not settled in time to overflow from there to the water storage tank below Therefore, the wide-width water storage dewatering screen can not only carry water directly, but also can achieve the co-entry of sand and water, and can process hundreds of cubic meters of water per hour according to the width and length. 3. The design of the 3-6° included angle between the bottom plate of the wide-width water storage type dewatering screen on the frame and the horizontal plane is three of technical characterictics of the present invention. The purpose of doing this is: when the angle between the bottom plate of the wide-width storage-type dewatering screen inclined on the frame and the horizontal plane is 3-6°, the vibration produced by the wide-width storage-type dewatering screen driven by the exciting motor will The vibration source is a combination of power source and vibration source. Since the vibration motor is equipped with a set of adjustable eccentric blocks at both ends of the rotor shaft, it can force the vibration force generated by the high-speed rotation of the shaft and eccentric block. In the process of sand washing and sand-water separation, the wide-width water storage dewatering screen forms a sand wall and a water storage space at the rear end to realize rapid mud-sand separation and sand-water separation. 4, adopt rubber-metal helical composite spring as the design of wide-width water storage type dewatering screen shock absorber, is four of technical characterictic of the present invention. The purpose of doing this is: because the rubber-metal helical composite spring has the characteristics of nonlinearity and structural damping of TT rubber spring, and also has the characteristics of large deformation and large load-bearing capacity of TT metal helical spring, its stability and load-bearing capacity are better than TT rubber. The spring has a simpler structure than the air spring, and although its natural frequency is higher than the TT metal spring, it is lower than the TT rubber spring, so it can effectively meet the excitation vibration requirements of the wide-width water storage dewatering screen.

Technical solution 1: A wide-width water storage dewatering screen assembly dedicated to the sand-water separation system, including a dewatering screen, the dewatering screen is a wide water storage dewatering screen, and the wide water storage dewatering screen is a frame structure, The upper bottom plate of the frame is a polyurethane sieve plate, and the lower sieve plate of the frame-type wide-width water storage dewatering screen is an outwardly inclined open facade screen hole plate, and the frame-type wide-width water storage dewatering screen is tilted on the frame through a shock absorber. Above, the wide water storage dewatering screen is driven by an exciting motor, and the wide water storage tank is located under the wide water storage dewatering screen.

Technical solution 2: A sand-water separation method for a wide-width water storage dewatering screen assembly dedicated to the sand-water separation system. Since the inclination angle between the bottom plate of the wide water storage dewatering screen and the horizontal plane is greater than 3 degrees and the wide water storage The type dewatering screen is driven by the exciting motor, forcing the movement track of the wide water storage dewatering screen to form a front and rear linear walking up and down movement. After rushing to the sieve hole plate of the outwardly inclined open facade, the middle wallboard of the sieve mesh orifice of the outwardly inclined open facade separates the coarse sand from the water. Walking up and down movement makes the coarse sand left on the screen surface naturally form a sand wall on the polyurethane screen of the dewatering screen plane, and pushes the sand wall to run to the front end of the dewatering screen, and continuously dehydrates during operation. So as to achieve the purpose of sediment separation and dehydration.

Compared with the background technology, the present invention has the advantages of high separation efficiency of sand and water. When the size of the wide screen reaches 3 meters by 5.5 meters, it can process 300 cubic meters of water per hour; The third is that there is a water storage room for the first precipitation separation of sand and water, and the overflow mechanism can increase the storage capacity of the water storage room once the sand wall is formed in the front section, which greatly improves the effect of sand and water separation; the fourth is the overflow The mixture of fine sand, water and mud flowing out of the launder flows into the water storage tank, and then is pumped into the cyclone group by the slurry pump to further separate the sand from sand and water, so as to achieve integration.

Description of drawings

Figure 1 is a schematic diagram of the front view of the wide water storage dewatering screen.

FIG. 2 is a rear view structural schematic diagram of FIG. 1 .

FIG. 3 is an enlarged structural schematic diagram of part B in FIG. 2 .

Fig. 4 is a schematic diagram of the application structure of Fig. 1 .

Detailed ways

Embodiment 1: with reference to accompanying drawing 1-3. A special wide-width water storage dewatering screen assembly for a sand-water separation system, including a dewatering screen, the dewatering screen is a wide water storage dewatering screen 1, the wide water storage dewatering screen 1 is a frame structure, and the frame is The bottom plate is a polyurethane sieve plate, and the lower end sieve plate of the frame-type wide-width water storage dewatering screen 1 is an outwardly inclined open facade screen hole plate 12, and the frame-type wide-width water storage dewatering screen 1 is obliquely hinged on the On the frame 7, the wide water storage type dehydration screen 1 is driven by an exciting motor 10, and the wide water storage tank 5 is located below the wide water storage type dehydration screen 1.

The wallboard of the outwardly inclined open facade screen mesh hole plate 13 is a mesh plate. A deflector 14 is provided at the rear of the screen mesh orifice plate 13 of the outwardly inclined open facade, and the passage formed between the deflector 14 and the screen mesh hole plate of the outwardly inclined open facade is an overflow channel 12, which prevents any sediment from settling in time. The machine sand and muddy water overflow from this place to the water storage tank below, so the frame type wide water storage type dewatering screen 1 can directly carry water to work.

The angle between the bottom plate and the horizontal plane of the wide water storage dewatering screen (1) obliquely hinged on the frame 7 is 3-6°, preferably 4-5°, in order to form the sand wall and the storage at the rear end. water space.

Since the wide-width water storage dewatering screen adopts the shock motor and the eccentric power group as the power source, and the screen plate adopts the polyurethane screen of the corresponding specification, the rear part of the special dewatering screen is artificially added to integrate the dehydration function and the water storage function. In the treatment area, the coarse sand sinks into the bottom of the dewatering screen through gravity, and the fine sand and excess water are separated from the dewatering screen by the special separator at the rear of the dewatering screen, and flow into the water storage tank at the lower part of the dewatering screen to mix with the water released from the front section of the dewatering screen. When the dewatering screen is working, following the principle of vibration force, the separated sand products gradually form a sand wall of a corresponding height, and the sand wall is gradually dehydrated during the operation process, and the water storage capacity is further increased due to the existence of the sand wall, which can be used The sedimentation of sand is further increased, and the mixture of fine sand and water stored in the water storage tank is pumped into the cyclone group by the work of the slurry pump to separate sand and water again. The fine sand produced is directly hit on the sand wall naturally formed by the dewatering screen and mixed with the coarse sand to be dehydrated together, and the remaining excess muddy water is discharged through the drainage system.

Embodiment 2: On the basis of Embodiment 1, when the flow rate of sand water treated by the wide-width water storage dewatering screen 1 per hour is greater than 300 cubic meters of water, the bottom plate, lower end sieve plate and side sieve plates of the frame are all screen holes plate.

Embodiment 3: with reference to accompanying drawing 4. On the basis of Example 1, a sand-water separation method for a wide-width storage-type dewatering screen assembly dedicated to a sand-water separation system, because the angle between the bottom plate of the wide-width water-storage dewatering screen 15 and the horizontal plane is greater than 3 degrees , and it is the exciting motor that drives the vibration of the wide water storage dewatering screen 1, which forces the vibration trajectory of the wide water storage dewatering screen 1 to form a front and rear straight line walking up and down movement, so when the vibrating screening equipment 15 punches When the sand-water mixture that comes down is washed onto the outwardly inclined open façade screen hole plate 13 through the wide-width water storage dewatering screen 15, the outwardly inclined open façade screen perforated plate 13 separates the coarse sand from the water and simultaneously stimulates the water. The vibrating motor forces the wide-width water storage dewatering screen 1 to move forward and backward in a straight line, walking up and down, so that the coarse sand left on the screen surface naturally forms a sand wall on the back of the dewatering screen and the polyurethane screen on the lower plane, and pushes The sand wall runs to the front end of the dewatering screen, and dewaters continuously during operation, so as to achieve the purpose of sand-water separation and dehydration, while the mixture of fine sand, water and mud flowing out of the overflow tank flows into the water storage tank, and then is pumped by the slurry pump into the cyclone group for further separation of sand and water, and the separated fine sand is mixed with the sand after dehydration to obtain the required graded sand.

It should be understood that: although the above-mentioned embodiments have made more detailed text descriptions to the design ideas of the present invention, these text descriptions are only simple text descriptions to the design ideas of the present invention, rather than limitations to the design ideas of the present invention. The combination, addition or modification of the design concept of the present invention all fall within the protection scope of the present invention.

Claims (8)

1. A wide-width storage-type dewatering screen assembly dedicated to sand-water separation systems, including a dewatering screen, characterized in that: the dewatering screen is a wide-width water-storage type dewatering screen (1), and a wide-width water-storage type dewatering screen (1) It is a frame structure, the upper bottom plate of the frame is a polyurethane sieve plate, and the frame-type wide-width water storage dewatering screen (1) The lower end sieve plate is an outwardly inclined open facade screen orifice plate (12) and the frame-type wide-width The water storage dehydration screen (1) is tilted on the frame (7) through the shock absorber (6), the wide water storage dehydration screen (1) is driven by the excitation motor (10), and the wide water storage tank (5 ) is located below the wide water storage dehydration screen (1). 2. The special wide water storage dewatering screen assembly for sand-water separation system according to claim 1, characterized in that: the wide water storage dewatering screen (1) is a frame structure, the bottom plate of the frame and the lower end sieve plate For the sieve orifice. 3. The special wide-width water storage dewatering screen assembly for sand-water separation system according to claim 1 according to claim 2, characterized in that: the screen hole plate is a polyurethane screen hole plate. 4. According to claim 1 or 2, the wide-width water storage dewatering screen assembly for sand-water separation system according to claim 1 is characterized in that: the wide-width storage screen located on the frame (7) is inclined The angle between the bottom plate of the water type dewatering screen (1) and the horizontal plane is 3-6°. 5. According to claim 1, the special wide-width storage-type dewatering screen assembly for sand-water separation system according to claim 1 is characterized in that: the frame-type wide-width water storage-type dewatering screen (1) lower end sieve plate It is an outwardly inclined open facade screen mesh orifice (13). 6. According to claim 1 or 5, the special wide-width water storage dewatering screen assembly for sand-water separation system according to claim 1 is characterized in that: the outwardly inclined open facade screen orifice plate (13) A deflector (14) is arranged at the rear, and the passage formed between the deflector (14) and the outwardly inclined open facade screen mesh orifice (13) is an overflow passage (12). 7. According to claim 1, the special wide-width water storage dewatering screen assembly for sand-water separation system according to claim 1 is characterized in that: the shock absorber (6) is a rubber-metal helical composite spring, or a hydraulic pressure shock absorber. 8. A sand-water separation method for a wide-width storage-type dewatering screen assembly dedicated to a sand-water separation system, characterized in that: the angle between the bottom plate of the wide-width water storage-type dewatering screen (15) and the horizontal plane is greater than 3 degrees , and it is the exciting motor that drives the vibration of the wide water storage dewatering screen (1), which forces the vibration trajectory of the wide water storage dewatering screen (1) to form a front and back linear walking up and down motion, so when the vibration comes from When the sand-water mixture washed down by the screening equipment (15) passes through the wide-width water storage dewatering screen (15) and is flushed onto the screen orifice plate (13) of the outwardly inclined open facade, the screen orifice of the outwardly inclined open facade will (13) While separating the coarse sand from water, the excitation motor forces the wide-width water storage dewatering screen (1) to move up and down in a straight line in a straight line, so that the coarse sand left on the screen surface is naturally on the back and down of the dewatering screen. A sand wall is formed on the flat polyurethane screen, and the sand wall is pushed towards the front end of the dewatering screen to dehydrate continuously during operation, so as to achieve the purpose of sand and water separation and dehydration, while the fine sand and water flowing out of the overflow tank The mixture of mud and mud flows into the water storage tank, and then is pumped into the cyclone group by the slurry pump for further separation of sand and water. The separated fine sand is mixed with the sand after dehydration to obtain the required graded sand.

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