Sand and gravel desilting and dewatering device and method

Abstract

The present invention discloses a sand and gravel mud and water removal device and method, including a bucket body, a mixing and separation bin, a filter plate, a first switch structure and a second switch structure; the filter plate divides the mixing and separation bin into a separation chamber and a mud and water chamber, the filter plate is provided with filter holes to separate mud and liquid in the sand and gravel materials and put them into the mud and water chamber; the separation chamber is connected with the bucket body to receive the sand and gravel materials, the peripheral wall of the separation chamber is provided with a hot air inlet and a high-pressure water interface, and the peripheral wall of the mud and water chamber is provided with a negative pressure suction port. The hot air inlet and the high-pressure water interface of the present invention can pass hot air and high-pressure water to perform high-pressure and high-temperature cleaning on the sand and gravel in the separation chamber, clean and separate the mud on the surface of the sand and gravel, and then through the negative pressure of the negative pressure suction port, the mud and water are sucked into the mud and water chamber from the filter holes of the filter plate, and the hot air can also evaporate and dry the water on the surface of the sand and gravel to remove excess water, thereby improving the mud and water removal efficiency of the sand and gravel and also improving the quality of the sand and gravel.

Description

Technical Field

[0001] The invention relates to equipment and method for removing sand and gravel impurities, and in particular to a device and method for removing mud and water from sand and gravel. Background Art

[0002] With the development of economy, my country's construction industry has developed rapidly, and its demand for raw materials has also increased day by day. However, with the management of riverbed, the collection of river sand has decreased. Therefore, sand and gravel need to be collected through other channels. However, the sand and gravel collected through other channels contain a lot of mud and water, which does not meet the use standards. Most of the existing equipment only performs simple coarse screening of sand and gravel, which is inefficient and has poor mud and water removal effects. Summary of the invention

[0003] The present invention aims to solve at least one of the above technical problems to a certain extent. To this end, the present invention provides an efficient sand and gravel desilting and dewatering device.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a sand and gravel mud and water removal device, including a bucket body, a mixing and separation bin, a filter plate, a first switch structure and a second switch structure; the bucket body is used to store sand and gravel materials; the mixing and separation bin is arranged below the bucket body; the filter plate divides the mixing and separation bin into a separation chamber and a mud and water chamber, the filter plate is provided with filter holes to separate the mud and liquid in the sand and gravel materials into the mud and water chamber; the separation chamber is connected with the bucket body to receive sand and gravel materials, the separation chamber and the mud and water chamber are both provided with material outlets, and the surrounding wall of the separation chamber is provided with a hot air inlet and a high-pressure water interface; the first switch structure is movably arranged between the separation chamber and the bucket body to realize the connection and blocking of the separation chamber and the bucket body; the second switch structure is movably arranged at the material outlet of the separation chamber to control the opening and closing of the material outlet.

[0005] A sand and gravel mud and water removal device according to an embodiment of the present invention has at least the following technical effects: a first switch structure controls the sand and gravel materials in the bucket to enter the separation chamber, and when the sand and gravel materials in the separation chamber reach a certain volume, the sand and gravel are stopped from entering; the hot air inlet and the high-pressure water interface can pass hot air and high-pressure water to perform high-pressure and high-temperature cleaning on the sand and gravel in the separation chamber, and the mud on the surface of the sand and gravel is cleaned and separated, and the mud and water enter the mud and water chamber through the filter holes on the filter plate under the high pressure of the hot air and high-pressure water, and the hot air can also evaporate and dry the moisture on the surface of the sand and gravel to remove excess moisture, thereby achieving the effect of mud removal and drying, thereby improving the mud and water removal efficiency of the sand and gravel, and also improving the quality of the sand and gravel.

[0006] According to some embodiments of the present invention, a negative pressure suction port is provided on the peripheral wall of the mud and water chamber.

[0007] According to some embodiments of the present invention, the mixing and separation bins, the filter plates, the first switch structures, and the second switch structures are each provided in plurality, and the mixing and separation bins are arranged around the bottom center of the bucket body.

[0008] According to some embodiments of the present invention, the mud and water chamber is located on a side of the mixing and separation bin away from the surrounding center, and a receiving hopper is provided below the mixing and separation bin, and the upper end of the receiving hopper is connected to the material outlets of all separation chambers.

[0009] According to some embodiments of the present invention, the bottom of the mud and water chamber is an opening, and the movable path of the second switch structure passes through the bottom of the mud and water chamber so as to close or open the mud and water chamber.

[0010] According to some embodiments of the present invention, a discharge bin for receiving muddy and water waste is provided below the muddy and water chamber.

[0011] According to some embodiments of the present invention, the first switch structure is a first partition plate hinged between the separation chamber and the bucket body.

[0012] According to some embodiments of the present invention, the second switch structure is a second partition hinged to the bottom of the mixing and separation bin.

[0013] According to some embodiments of the present invention, a wear-resistant smooth plate is provided on the inner wall of the bucket.

[0014] The present invention also provides a sand and gravel mud and water removal method, comprising the following steps: opening a first switch structure to allow the sand and gravel materials in the bucket to enter the separation chamber, and closing the first switch structure after the sand and gravel materials fill part of the volume of the separation chamber; charging hot air and high-pressure water into the hot air inlet and the high-pressure water interface to wash the surface of the sand and gravel materials so that the mud on the surface of the sand and gravel is separated from the surface of the sand and gravel; the negative pressure suction port starts negative pressure suction to allow the mud and water to enter the mud and water chamber through the filter holes on the filter plate; the high-pressure water interface is stopped from entering high-pressure water, and the hot air at the hot air inlet continues to wash and dry the sand and gravel to remove excess moisture from the sand and gravel; opening the second switch structure, and the sand and gravel are sent out of the separation chamber.

[0015] A method for removing mud and water from sand and gravel according to an embodiment of the present invention has at least the following technical effects: sand and gravel are cleaned by high-pressure water and hot air to effectively remove mud in the sand and gravel, mud and water enter the mud and water chamber through filter holes to separate from the sand and gravel, hot air dehumidifies and dries the sand and gravel to effectively remove excess water, and can efficiently reduce the mud and water content in the sand and gravel to improve sand and gravel quality.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 is a schematic diagram of the installation structure of an embodiment of the present invention;

[0019] Figure 2 is a schematic diagram of a first switch structure being turned on and a second switch structure being turned on according to an embodiment of the present invention;

[0020] Figure 3 is an internal cross-sectional view of an embodiment of the present invention;

[0021] Figure 4 is a sectional isometric view of an embodiment of the present invention. DETAILED DESCRIPTION

[0022] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0023] Reference Figures 1 to 4 An embodiment of a sand and gravel desilting and dewatering device includes a bucket body 100, a mixing and separation bin 200, a filter plate 300, a first switch structure and a second switch structure.

[0024] The bucket body 100 is used to store sand and gravel materials. The bucket body 100 is in the shape of a quadrangular pyramid as a whole, and is in the shape of an inverted cone, hollow in the middle, and open at the top and bottom. The mixing and separation bin 200 is arranged below the bucket body 100, and is open at the top and bottom, and the upper opening is connected to the bucket body 100. The filter plate 300 separates the mixing and separation bin 200 into a separation chamber 210 and a mud and water chamber 220. The filter plate 300 is provided with filter holes to separate the mud and liquid in the sand and gravel materials into the mud and water chamber 220. The diameter of the filter hole is smaller than the diameter of the sand and gravel to prevent the sand and gravel from leaking out of the filter hole. The separation chamber 210 is connected to the bucket body 100 to receive sand and gravel materials. The separation chamber 210 and the mud and water chamber 220 are both provided with material outlets. The material outlets of the separation chamber 210 and the mud and water chamber 220 are the openings at the bottom. When the bottom openings are opened, the sand and gravel materials can automatically fall out of the separation chamber 210 without the need for other equipment to assist in the discharge. Of course, in other embodiments, the material outlet can also be at other positions and assisted by corresponding equipment (such as a screw pump). A hot air inlet 211 and a high-pressure water interface 212 are provided on the surrounding wall of the separation chamber 210. The hot air inlet 211 is used to connect with a high-pressure hot air generating device (in combination with a high-pressure air pump and a heater) to connect external hot air into the separation chamber 210. The number of the hot air inlet 211 and the high-pressure water interface 212 can be set according to demand and is not limited here; the high-pressure water interface 212 is used to connect with a high-pressure water generating device (such as a high-pressure water pump) to connect external high-pressure water into the separation chamber 210. The hot air inlet 211 and the high-pressure water interface 212 can allow hot air and high-pressure water to be introduced to perform high-pressure and high-temperature cleaning on the sand and gravel in the separation chamber, and the mud on the surface of the sand and gravel can be cleaned and separated. Under the high pressure of the hot air and high-pressure water, the mud and water enter the mud and water chamber through the filter holes on the filter plate. The hot air can also evaporate and dry the moisture on the surface of the sand and gravel to remove excess moisture, thereby achieving the effect of mud removal and drying. The first switch structure is movably arranged between the separation chamber 210 and the bucket body 100 to achieve the connection and blocking of the separation chamber 210 and the bucket body 100. Specifically, when the first switch structure is closed, the opening at the bottom of the bucket body 100 and the upper opening of the mixing and separation bin 200 can be blocked to achieve the blocking of the connection between the two. When the first switch structure is opened, the bottom opening of the bucket body 100 and the upper opening of the mixing and separation bin 200 are both open and connected, and the sand and gravel materials can enter the separation chamber 210. The second switch structure is movably arranged at the material outlet of the separation chamber 210 to control the opening and closing of the material outlet. When the sand and gravel materials in the separation chamber 210 are deslued and dried, the second switch structure can be opened to send the sand and gravel materials in the separation chamber 210 out.

[0025] In some embodiments of the present invention, a negative pressure suction port 221 is provided on the peripheral wall of the mud and water chamber 220 for connecting a negative pressure aspirator to generate negative pressure, thereby efficiently and quickly sucking the mud and water in the separation chamber 210 into the mud and water chamber 220 .

[0026] In some embodiments of the present invention, the mixing and separation chamber 200, the filter plate 300, the first switch structure and the second switch structure are each provided with a plurality of corresponding ones, that is, the mixing and separation chamber 200, the filter plate 300, the first switch structure and the second switch structure are each provided with a plurality of corresponding ones, such as Figure 1 to Figure 2 As shown, there are four mixing and separation bins 200, filter plates 300, first switch structures and second switch structures. In order to optimize the structural symmetry, the mixing and separation bins 200 are arranged around the bottom center of the bucket body 100. The bottom of the bucket body 100 is a circular opening, which is evenly divided into four congruent sectors. The four mixing and separation bins 200 are distributed and connected to the four sector-shaped openings, and each mixing and separation bin 200 is provided with a first switch structure at the top, and each separation chamber 210 is provided with a second opening structure at the bottom, so that each mixing and separation bin 200 and the corresponding separation chamber 210 can operate independently, and a failure in one of them will not affect the normal operation of the others, thereby improving the fault tolerance rate.

[0027] like Figure 3 and Figure 4 As shown, in a further embodiment of the present invention, the mud and water chamber 220 is located on the side of the mixing and separation bin 200 away from the center, that is, the filter plate 300 extends downward from the side wall of the mixing and separation bin 200 away from the center to the middle position of the bottom of the mixing and separation bin 200, so that the separation chamber 210 exclusively occupies the upper opening of the mixing and separation bin 200, and the opening at the bottom of the mixing and separation bin 200 is divided into two parts and corresponds to the separation chamber 210 and the mud and water chamber 220 respectively, as their material outlets. A receiving hopper 600 is provided below the mixing and separation bin 200, and the upper end of the receiving hopper 600 is connected to the material outlets of all the separation chambers 210, that is, the separation chamber 210 is located in the center, and all the sand and gravel materials coming out of the separation chamber 210 can be received by a receiving hopper 600 located below it, so as to achieve the effect of simplifying the structure. It can be imagined that a discharge bin 700 for receiving mud and water waste is provided under the mud and water chamber 220, and a discharge bin 700 is respectively provided at the bottom of the mud and water chamber 220 to receive mud and water. The discharge bin 700 is used to connect with external mud and water treatment equipment to purify and recycle the mud and water, and the discharge bin 700 serves to connect external equipment.

[0028] In a further embodiment of the present invention, the bottom of the mud and water chamber 220 is open, and the movable path of the second switch structure passes through the bottom of the mud and water chamber 220 to close or open the mud and water chamber 220, that is, the mud and water chamber 220 and the separation chamber 210 share the second switch structure to realize the opening and closing of their bottom openings, and the bottoms of the mud and water chamber 220 and the separation chamber 210 can be closed or opened at the same time, so that the design can simplify the structure and save costs. Of course, in other embodiments, the bottom of the mud and water chamber 220 may not be provided with a corresponding switch structure, and the mud and water will directly fall from the bottom into the corresponding receiving device after entering it, but in this case, the effect of negative pressure suction will be discounted, and the negative pressure suction will remove part of the negative pressure from the bottom of the mud and water chamber 220, resulting in poor effect of attracting mud and water.

[0029] In some specific embodiments of the present invention, the first switch structure is a first partition 400 hinged between the separation chamber 210 and the bucket body 100, and the upper and lower surfaces of the first partition 400 are respectively flush with the bottom opening edge of the bucket body 100 and the top edge of the separation chamber 210 (the top edge of the mixing separation bin), and the rotation plane of the first partition 400 is always in contact with the bottom opening of the bucket body 100 and the top of the separation chamber 210. The first partition 400 is connected to the mounting plate through a hinge shaft, and the mounting plate is fixedly connected to the bucket body 100. The first partition 400 is connected to a driving mechanism for driving it to rotate to realize automatic operation. The driving mechanism can be a rotating motor, and the rotating activity mode is more conducive to saving space and simplifying the structure. The installation and arrangement of its driving mechanism are also simpler.

[0030] In some specific embodiments of the present invention, the second switch structure is a second partition 500 hinged to the bottom of the mixing and separation bin 200. The second partition 500 is flush with the bottom of the mixing and separation bin 200 and can rotate along it, that is, the rotation axis of the second partition 500 is perpendicular to itself, and its upper surface is always flush with the bottom of the mixing and separation bin 200 during rotation. In addition, in some embodiments, the bottom opening of the mixing and separation bin 200 is divided into two parts to provide a separation chamber 210 and a mud and water chamber 220. The bottom openings of the separation chamber 210 and the mud and water chamber 220 are their material outlets, so that the rotation of the second partition 500 can realize the control of the material output of the separation chamber 210 and the mud and water chamber 220. The hinge axis of the second partition 500 is located outside the mixing and separation bin 200, such as Figure 1 and Figure 2 As shown, its hinged position is located on the connecting plate of the gap between adjacent mixing and separation bins 200. The second partition plate 500 is connected to a driving mechanism for driving its rotation to realize automatic operation. The driving mechanism can be a rotating motor. The rotating activity mode is more conducive to saving space and simplifying the structure. The installation and arrangement of the driving mechanism are also simpler.

[0031] Sand and gravel need to be frequently poured into the bucket body 100 to replenish materials. When pouring sand and gravel, the sand and gravel cause great wear on the inner wall of the bucket body 100, and even over time, the sand and gravel will adhere to the surface due to surface wear, causing resistance to subsequent sand and gravel falling. For this reason, in some embodiments of the present invention, a wear-resistant smooth plate is attached to the inner wall of the bucket body 100. The wear-resistant smooth plate can be detachably installed on the inner wall of the bucket body 100, and can be specifically installed and fixed by fasteners such as bolts. The wear-resistant smooth plate can be made of polyurethane material, and its surface is smooth and wear-resistant.

[0032] The present invention also provides an embodiment of a method for removing mud and water from sand and gravel, comprising the following steps: first, closing the second switch structure to seal the material outlet of the separation chamber, and then opening the first switch structure to allow the sand and gravel materials in the bucket 100 to enter the separation chamber 210. After the sand and gravel materials fill part of the volume of the separation chamber, the first switch structure is closed; the sand and gravel materials do not fill up the separation chamber 210 because during the flushing process, space is given for the sand and gravel materials to surge so as to perform more uniform cleaning; then, hot air and high-pressure water are filled into the hot air inlet 211 and the high-pressure water interface 212 to flush the surface of the sand and gravel materials. The hot air and high-pressure water cause the sand and gravel to jump and surge to a certain extent, which can quickly clean the mud in the sand and gravel, and make the mud on the surface of the sand and gravel separate from the surface of the sand and gravel; then, the negative pressure suction device connected to the negative pressure suction port 221 is turned on, and the negative pressure suction port 221 starts to perform negative pressure suction. The mud and water are allowed to enter the mud and water chamber 220 through the filter holes on the filter plate 300; the high-pressure water interface 212 is stopped from entering, and the hot air from the hot air inlet 211 continues to flush and dry the sand and gravel. Of course, at this time, the negative pressure suction also absorbs the separated water vapor at the same time. The gas on the surface of the sand and gravel can be quickly taken away through hot air drying and negative pressure suction. In particular, if high-pressure hot air is used for drying, the sand and gravel can be washed and surged, and the inner layer of sand and gravel can be quickly dried to remove excess moisture from the sand and gravel. After drying for a certain period of time, the moisture on the surface of the sand and gravel is completely removed, and the hot air filling can be stopped; finally, the second switch structure is opened, and the sand and gravel are sent out from the separation chamber 210. In some embodiments, the second switch structure can also control the opening and closing of the mud and water chamber 220, so that the cleaned sand and gravel and the separated mud and water can fall out from different positions at the same time and be received by the corresponding device.

[0033] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0034] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A sand and gravel desilting and dewatering device, characterized in that include: The bucket (100) is used to store sand and gravel materials; A mixing and separation chamber (200) is arranged below the bucket body (100); A filter plate (300) is provided to separate the mixing and separation bin (200) into a separation chamber (210) and a mud and water chamber (220); the filter plate (300) is provided with filter holes to separate mud and liquid in the sand and stone materials and enter the mud and water chamber (220); the separation chamber (210) is communicated with the bucket (100) to receive the sand and stone materials; the separation chamber (210) and the mud and water chamber (220) are both provided with material outlets; and the peripheral wall of the separation chamber (210) is provided with a hot air inlet (211) and a high-pressure water interface (212); A first switch structure is movably disposed between the separation chamber (210) and the bucket body (100) To achieve the connection and blocking between the separation chamber (210) and the bucket body (100); the first switch structure is a first partition (400) hinged between the separation chamber (210) and the bucket body (100); the upper and lower surfaces of the first partition (400) are respectively flush with the bottom opening edge of the bucket body (100) and the top edge of the separation chamber (210); the rotation plane of the first partition (400) is always in contact with the bottom opening of the bucket body (100) and the top of the separation chamber (210); the first partition (400) is connected to a mounting plate fixed to the bucket body (100) via a hinge shaft; the first partition (400) is connected to a driving mechanism for driving it to rotate; The second switch structure is movably arranged at the material outlet of the separation chamber (210) to control the opening and closing of the material outlet. The second switch structure is a second partition (500) hinged to the bottom of the mixing and separation bin (200). The second partition (500) is flush with the bottom of the mixing and separation bin (200) and can rotate. The rotation axis of the second partition (500) is perpendicular to itself. When rotating, the upper surface of the second partition (500) is always flush with the bottom of the mixing and separation bin (200).

2. The sand and gravel desilting and dewatering device according to claim 1 is characterized in that: A negative pressure suction port (221) is provided on the peripheral wall of the mud and water chamber (220).

3. The sand and gravel desilting and dewatering device according to claim 1 is characterized in that: The mixing and separation bin (200), the filter plate (300), the first switch structure, and the second switch structure are each provided in plurality and arranged around the bottom center of the bucket body (100).

4. The sand and gravel desilting and dewatering device according to claim 3 is characterized in that: The mud and water chamber (220) is located on a side of the mixing and separation bin (200) away from the center of the surround. A material receiving hopper (600) is provided below the mixing and separation bin (200). The upper end of the material receiving hopper (600) is connected to the material outlets of all the separation chambers (210).

5. The sand and gravel desilting and dewatering device according to claim 4 is characterized in that: The bottoms of the separation chamber (210) and the mud and water chamber (220) are open, and the movable path of the second switch structure passes through the bottom of the mud and water chamber (220) so as to simultaneously close or open the separation chamber (210) and the mud and water chamber (220).

6. The sand and gravel desilting and dewatering device according to claim 1, characterized in that: A discharge bin (700) for receiving muddy and waste materials is provided below the muddy and waste water chamber (220).

7. The sand and gravel desilting and dewatering device according to claim 1 is characterized in that: The inner wall of the bucket body (100) is provided with a wear-resistant smooth plate.

8. A method for removing mud and water from sand and gravel, characterized in that: The sand and gravel desilting and dewatering device as described in claim 2 comprises the following steps: The second switch structure is closed to seal the material outlet of the separation chamber (210), and the first switch structure is opened to allow the sand and gravel materials in the bucket (100) to enter the separation chamber (210). After the sand and gravel materials fill part of the volume of the separation chamber (210), the first switch structure is closed; Filling hot air and high-pressure water into the hot air inlet (211) and the high-pressure water interface (212) to wash the surface of the sand and gravel materials, so that the mud on the surface of the sand and gravel is separated from the surface of the sand and gravel; The negative pressure suction port (221) starts to perform negative pressure suction, so that mud and water enter the mud and water chamber (220) through the filter holes on the filter plate (300); The high-pressure water interface (212) is stopped from entering, and the hot air from the hot air inlet (211) continues to wash and dry the sand and gravel, thereby removing excess moisture from the sand and gravel; The second switch structure is opened, and the sand and gravel are sent out from the separation chamber (210).

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