Self-homogenizing high-precision desliming and classifying device

Abstract

The self-uniformizing high-precision desliming and grading device comprises a desliming and concentrating assembly, a grading assembly and a self-uniformizing part. The desliming and concentrating assembly comprises a separation cavity, which is used for concentrating and separating sand-water slurry under the action of centrifugal force to separate out mud slurry and sand slurry. The bottom of the desliming and concentrating assembly is in communication with the top of the grading assembly. The self-uniformizing part is arranged at the bottom of the desliming and concentrating assembly and is used for uniformly spraying the sand slurry after concentration and separation to the top of the grading assembly under the action of pressure. The grading assembly comprises a grading cavity, which is filled with water and has a rising water flow at the bottom. The size of the rising water flow is adjusted to make fine particles in the sand slurry sprayed into the grading cavity overflow from the top of the grading cavity, while making coarse particles in the sand slurry discharge from the bottom of the grading cavity. The device can realize desliming and fine grading of sand-water slurry, while reducing the loss of sand.

Description

Technical Field

[0001] This disclosure pertains to the field of desliming and grading technology, specifically relating to a self-homogenizing high-precision desliming and grading device. Background Technology

[0002] Quartz sand proppant, as an important branch of proppants, has seen its usage increase in recent years as cost reduction and efficiency improvement have become more important. As a crucial raw material for fracturing operations, the performance of proppants directly affects the fracturing stimulation effect.

[0003] Ordinary thickening equipment cannot control the pressure, causing sand loss. At the same time, the sand discharge nozzle is single-opening, which prevents the concentrated sand from dispersing and entering the classifying device. As a result, the sand is not dispersed and is uneven in the classifying device, making it difficult to control the final classification.

[0004] To address the aforementioned issues, it is necessary to propose a well-designed, self-homogenizing, high-precision desliming and grading device that can effectively improve these problems. Utility Model Content

[0005] The present disclosure aims to at least solve one of the technical problems existing in the prior art, and to provide a self-homogenizing high-precision desliming and grading device.

[0006] This disclosure provides a self-homogenizing high-precision desliming and grading device, including a desliming and thickening component, a grading component, and a self-homogenizing component;

[0007] The desliming and thickening assembly includes a separation chamber, which is used to concentrate and separate the sand-water slurry under centrifugal force to separate mud and mortar.

[0008] The bottom of the sludge thickening component is connected to the top of the grading component;

[0009] The self-homogenizing component is disposed at the bottom of the desliming and thickening component, and is used to uniformly spray the concentrated and separated slurry onto the top of the grading component under pressure.

[0010] The grading component includes a grading chamber filled with water with an upward water flow at its bottom. By adjusting the size of the upward water flow, fine particles in the mortar sprayed into the grading chamber overflow from the top of the grading chamber, while coarse particles in the mortar are discharged from the bottom of the grading chamber.

[0011] Optionally, the device further includes a safety valve installed at the communication interface between the bottom of the desliming and thickening component and the top of the grading component.

[0012] Optionally, the self-homogenizing component is a porous fabric sand-collecting nozzle.

[0013] Optionally, the top of the grading component is provided with an overflow trough, which has an outlet.

[0014] Optionally, the grading assembly further includes a porous water distribution plate that surrounds the bottom of the grading cavity and is arranged at an angle.

[0015] Optionally, the porous water distribution plate is provided with multiple water inlets, which are arranged in an alternating pattern.

[0016] Optionally, the grading assembly further includes a plurality of water supply pipes disposed at the bottom of the grading chamber, the plurality of water supply pipes being located below the porous water distribution plate.

[0017] Optionally, the grading component further includes a sand discharge port, which is disposed on the bottom wall of the grading cavity.

[0018] Optionally, the separation chamber is provided with a sewage outlet and a feed inlet;

[0019] The wastewater outlet is used to discharge the separated sludge, and the feed inlet is used to transport sand-water slurry into the separation chamber.

[0020] Optionally, the device may also include a support;

[0021] The two ends of the bracket are respectively connected to the separation cavity and the grading cavity.

[0022] The self-homogenizing high-precision desliming and grading device of this disclosure includes a desliming and thickening component, a grading component, and a self-homogenizing component. The bottom of the desliming and thickening component is connected to the top of the grading component. The self-homogenizing component is disposed at the bottom of the desliming and thickening component. The desliming and thickening component can effectively remove high-concentration slurry and ensure the washing effect. The separated slurry is evenly sprayed onto the top of the grading component under pressure, so that the slurry is evenly dispersed in the grading chamber of the grading component. The grading chamber is filled with water and the bottom of the chamber is kept in an upward flow. By adjusting the size of the upward flow, fine particles in the slurry that are evenly sprayed into the grading chamber overflow from the top of the grading chamber, while coarse particles in the slurry are discharged from the bottom of the grading chamber, thereby achieving fine grading of the slurry and reducing costs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a self-homogenizing high-precision desliming and grading device according to one embodiment of the present disclosure. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions of the embodiments of this disclosure, the embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0025] like Figure 1As shown in the figure, this disclosure provides a self-homogenizing high-precision desliming and grading device 100, including a desliming and thickening component 110, a grading component 120 and a self-homogenizing component 130.

[0026] The sludge thickening assembly 110 includes a separation chamber 111, which is used to thicken and separate the sand-water slurry under centrifugal force to separate mud and mortar. Specifically, the separation chamber 111 is conical in shape to better achieve the thickening and separation of the sand-water slurry under centrifugal force.

[0027] The bottom of the sludge thickening component 110 is connected to the top of the grading component 120.

[0028] The self-homogenizing component 130 is disposed at the bottom of the desliming and thickening component 110 and is used to uniformly spray the concentrated and separated slurry onto the top of the grading component 120 under pressure.

[0029] The grading component 120 includes a grading chamber 121 filled with water and with an upward flow at its bottom. By adjusting the size of the upward flow, fine particles in the mortar sprayed into the grading chamber 121 overflow from the top of the grading chamber 121, while coarse particles in the mortar are discharged from the bottom of the grading chamber 121.

[0030] Specifically, the sand-water slurry is pumped to the separation chamber 111 in the desliming and thickening unit 110 via a slurry pump. Under centrifugal force, solid-liquid separation occurs, separating the sand-water slurry into mud and mortar. The mud is discharged from the separation chamber 111, while the thickened and separated mortar is uniformly sprayed onto the top of the grading chamber 121 of the grading unit 120 under pressure via a self-homogenizing element 130. The grading chamber 121 is filled with water, and an upward water flow is maintained at its bottom. By adjusting the size of the upward water flow, fine particles in the mortar sprayed into the grading chamber 121 overflow from the top of the grading chamber 121 and enter the corresponding fine sand collection device, while coarse particles in the mortar are discharged from the bottom of the grading chamber 121 and enter the corresponding coarse sand collection device, thereby achieving sand particle grading.

[0031] The self-homogenizing high-precision desliming and grading device of this disclosure includes a desliming and thickening component, a grading component, and a self-homogenizing component. The bottom of the desliming and thickening component is connected to the top of the grading component. The self-homogenizing component is disposed at the bottom of the desliming and thickening component. The desliming and thickening component can effectively remove high-concentration slurry and ensure the washing effect. The separated slurry is evenly sprayed onto the top of the grading component under pressure, so that the slurry is evenly dispersed in the grading chamber of the grading component. The grading chamber is filled with water and the bottom of the chamber is kept in an upward flow. By adjusting the size of the upward flow, fine particles in the slurry that are evenly sprayed into the grading chamber overflow from the top of the grading chamber, while coarse particles in the slurry are discharged from the bottom of the grading chamber, thereby achieving fine grading of the slurry and reducing costs.

[0032] For example, such as Figure 1 As shown, the self-homogenizing high-precision desliming and grading device 100 also includes a safety valve 140, which is installed at the communication interface between the bottom of the desliming and thickening component 110 and the top of the grading component 120.

[0033] In this embodiment, by setting a safety valve 140, when the pumping pressure is too high, the safety valve 140 is adjusted to release the pressure to prevent sand from leaking out of the sewage outlet and reduce sand loss caused by excessive pressure.

[0034] For example, in this embodiment, the self-homogenizing element 130 can be a porous cloth underflow nozzle. Specifically, the concentrated slurry is sprayed out from the porous cloth underflow nozzle under pressure, so that the slurry enters the grading component 120 evenly to achieve fine grading.

[0035] For example, such as Figure 1 As shown, the top of the grading component 120 is provided with an overflow trough 122, which has an outlet 122a. Specifically, an overflow trough 122 is provided at the top of the grading chamber 121. The grading chamber 121 is filled with water, and its bottom is maintained with an upward water flow. Under the action of the upward water flow, the fine particles in the mortar that are uniformly entering the grading chamber 121 enter the overflow trough 122 with the water and flow out along the outlet 122a, thereby realizing the grading of fine sand particles.

[0036] For example, such as Figure 1 As shown, the grading assembly 120 also includes a porous water distribution plate 123 that surrounds the bottom of the grading chamber 121 and is inclined. The porous water distribution plate 123 is conical. More specifically, the porous water distribution plate 123 is provided with a plurality of water inlet holes 123a, which are arranged in an alternating pattern. The water entering from the bottom of the grading chamber 121 first flows through the porous water distribution plate 123 and then enters the grading chamber 121.

[0037] In this embodiment, the porous water distribution plate can ensure the uniformity of water entering the grading chamber. At the same time, the staggered arrangement of the water inlets ensures that the sand can fully contact the water as it slides down the porous water distribution plate, thus ensuring the grading effect.

[0038] For example, such as Figure 1 As shown, the grading component 120 also includes a plurality of water supply pipes 124 disposed at the bottom of the grading chamber 121. The plurality of water supply pipes 124 are located below the porous water distribution plate 123, and water is supplied to the grading chamber 121 through the water supply pipes 124 to provide an upward water flow. It should be noted that in this embodiment, the number of water supply pipes 124 is not specifically limited, and can be selected according to actual needs.

[0039] For example, such as Figure 1As shown, the grading component 120 also includes a sand discharge port 125, which is disposed on the bottom wall of the grading chamber 121. Relatively coarse sand particles in the mortar entering the grading chamber 121 settle at the bottom of the grading chamber 121 and are discharged through the sand discharge port 125.

[0040] Specifically, in this embodiment, the size of the water flow in the water supply pipe 124 is adjusted to adjust the size of the rising water flow in the grading chamber 121, so that the fine particles in the mortar sprayed into the grading chamber 121 overflow from the overflow trough 122, while the coarse particles in the mortar are discharged from the sand discharge port 125.

[0041] For example, the separation chamber 111 is provided with a sewage outlet 112 and a feed inlet 113. The sewage outlet 112 is located on the top wall of the separation chamber 111 and is used to discharge the separated slurry. The feed inlet 113 is located on the side wall of the top of the separation chamber 111 and is used to feed mortar into the separation chamber 111.

[0042] For example, such as Figure 1 As shown, the self-homogenizing high-precision desliming and grading device 100 also includes a support 150; the two ends of the support 150 are respectively connected to the separation chamber 111 and the grading chamber 121, which are used to more firmly connect the desliming and thickening component 110 to the grading component 120.

[0043] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of the embodiments of this disclosure, and the embodiments of this disclosure are not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the embodiments of this disclosure, and these modifications and improvements are also considered to be within the protection scope of the embodiments of this disclosure.

Claims

1. A self-homogenizing high-precision desliming and grading device, characterized in that, Includes sludge thickening components, grading components, and self-homogenizing components; The desliming and thickening assembly includes a separation chamber, which is used to concentrate and separate the sand-water slurry under centrifugal force to separate mud and mortar. The bottom of the sludge thickening component is connected to the top of the grading component; The self-homogenizing component is disposed at the bottom of the desliming and thickening component, and is used to uniformly spray the concentrated and separated slurry onto the top of the grading component under pressure. The grading component includes a grading chamber filled with water with an upward water flow at its bottom. By adjusting the size of the upward water flow, fine particles in the mortar sprayed into the grading chamber overflow from the top of the grading chamber, while coarse particles in the mortar are discharged from the bottom of the grading chamber.

2. The apparatus according to claim 1, characterized in that, The device also includes a safety valve installed at the communication interface between the bottom of the desliming and thickening component and the top of the grading component.

3. The apparatus according to claim 1, characterized in that, The self-homogenizing component is a porous fabric sand-collecting nozzle.

4. The apparatus according to any one of claims 1 to 3, characterized in that, The top of the grading component is provided with an overflow trough, which has an outlet.

5. The apparatus according to any one of claims 1 to 3, characterized in that, The grading component also includes a porous water distribution plate that surrounds the bottom of the grading cavity and is arranged at an angle.

6. The apparatus according to claim 5, characterized in that, The porous water distribution plate is provided with multiple water inlets, which are arranged in an alternating pattern.

7. The apparatus according to claim 5, characterized in that, The grading component also includes a plurality of water supply pipes disposed at the bottom of the grading cavity, the plurality of water supply pipes being located below the porous water distribution plate.

8. The apparatus according to any one of claims 1 to 3, characterized in that, The grading component also includes a sand discharge port, which is disposed on the bottom wall of the grading cavity.

9. The apparatus according to any one of claims 1 to 3, characterized in that, The separation chamber is equipped with a sewage outlet and a feed inlet; The wastewater outlet is used to discharge the separated sludge, and the feed inlet is used to deliver mortar into the separation chamber.

10. The apparatus according to any one of claims 1 to 3, characterized in that, The device also includes a support frame; The two ends of the bracket are respectively connected to the separation cavity and the grading cavity.

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