Batching device for proppant production

Abstract

The utility model relates to a batching device for proppant production, which comprises a shell, wherein a discharge door is arranged at the bottom of the shell; the bearing body is fixed to an opening in the upper end of the shell, containing grooves with openings in the upper end and the lower end are formed in the bearing body in an annular array mode, a valve is arranged on the lower side of each containing groove and comprises a transverse plate and a stand column, the transverse plate covers the opening in the lower end of the corresponding containing groove, and the stand column is fixed to the bottom face of the bearing body; the stand column movably penetrates through the outer end of the transverse plate, the transverse plate is rotationally connected with the stand column, and a torsional spring is connected between the free end of the stand column and the transverse plate; a rotating shaft driven by a motor to rotate is arranged in the center of the bearing body, a cross rod is horizontally fixed on the peripheral wall of the rotating shaft, the free end of the cross rod extends between any two adjacent cross plates, and a plurality of stirring rods are arranged on the rotating shaft on the lower side of the cross rod. According to the utility model, the problem that the same raw material is difficult to mix with other raw materials uniformly when various raw materials of the proppant are blended is solved.

Description

Technical Field

[0001] This utility model relates to the field of proppant production technology, specifically to a batching device for proppant production. Background Technology

[0002] Proppants are granular materials with specific particle sizes and gradations that are injected into the formation along with fracturing fluid during hydraulic fracturing. They act as supports within the fractures created by fracturing, preventing fracture closure and thus improving oil and gas permeability. The main raw materials for proppants include bauxite, sepiolite, and silica. For example, ceramsite proppants typically use high-grade bauxite as the main raw material, while adding auxiliary materials such as crushed glass and clay. The mixing of different raw materials can affect the proppant's conductivity, compressive strength, and fragmentation rate.

[0003] Currently, in the process of mixing different raw materials into proppant, different raw materials are fed into the mixing device for batching. The same raw material is aggregated together, and multiple raw materials are unevenly dispersed in the mixing device, making it difficult to uniformly mix the same raw material with other raw materials. Summary of the Invention

[0004] This invention addresses the problem that when multiple raw materials for proppant are mixed, the same raw material tends to agglomerate and is difficult to mix evenly with other raw materials. It provides a batching device for proppant production that can disperse different raw materials evenly and improve the mixing effect.

[0005] To solve the above problems, the technical solution of this utility model is:

[0006] A batching device for proppant production includes a housing with a discharge gate at the bottom; it also includes a carrier and a rotating shaft. The carrier is fixed to the upper opening of the housing, and the carrier has a ring array of receiving slots with openings at the upper and lower ends. Each receiving slot has a valve on its lower side. The valve includes a horizontal plate and a vertical column. The horizontal plate covers the lower opening of the corresponding receiving slot. The vertical column is fixed to the bottom surface of the carrier and movably passes through the outer end of the horizontal plate. The horizontal plate and the vertical column are rotatably connected. A torsion spring connects the free end of the vertical column and the horizontal plate. The center of the carrier has a rotating shaft driven by a motor. A horizontal bar is horizontally fixed on the peripheral wall of the rotating shaft. The free end of the horizontal bar extends between any two adjacent horizontal plates. Multiple stirring rods are provided on the rotating shaft below the horizontal bar.

[0007] Furthermore, the outer bottom surface of the housing is provided with support legs; the upper end of the rotating shaft movably passes through the center of the carrier, the motor is fixed in the middle of the top surface of the carrier, and the output end of the motor is connected downward to the rotating shaft.

[0008] Furthermore, the receiving groove on the left is a trapezoidal groove with an upper opening width greater than a lower opening width, and the front and rear sides of the receiving groove on the left are both sides where the waist of the receiving groove is located; the left side of the receiving groove on the left is an inclined surface that slopes to the left at the upper end.

[0009] Furthermore, each of the torsion springs is sleeved on the outside of the corresponding column; when the horizontal plate covers the lower opening of the corresponding receiving groove, the torsion spring connected to the horizontal plate is in its natural state.

[0010] Furthermore, the housing is also provided with a material distribution component, which includes a guide cylinder and a material distribution plate. The guide cylinder is a hollow frustum with a larger top and a smaller bottom and open at both ends. The guide cylinder is sleeved on the rotating shaft on the lower side of the crossbar. The upper end of the peripheral wall of the guide cylinder is connected to the inner wall of the housing. The material distribution plate is a cone with a smaller top and a larger bottom. The material distribution plate is sleeved and fixed on the rotating shaft on the lower side of the guide cylinder.

[0011] Furthermore, the dispensing disc has multiple protrusions arranged in an array, each protrusion being arranged along the generatrix of the dispensing disc; multiple stirring rods are located on the rotating shaft on the lower side of the dispensing disc.

[0012] The beneficial effects of this utility model through the above technical solution are as follows:

[0013] This invention allows different proppant materials to be fed into the receiving tanks at different locations. During the rotation of the motor-driven shaft, the valves on the lower side of the different receiving tanks can be opened sequentially, allowing the materials from the different receiving tanks to be fed into the shell in sequence. Moreover, under the distribution of the material distribution component, the different materials are evenly sprinkled into the lower part of the shell in sequence and stirred by the stirring rod. This invention can prevent the same material from accumulating and agglomerating in the shell, and the mixing of multiple materials is more uniform. Attached Figure Description

[0014] Figure 1 This is a sectional front view of the present invention;

[0015] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0016] Figure 3 This is a bottom view of the cross section of the horizontal plate of this utility model (the lower end of the receiving groove on the left is open).

[0017] Figure 4 This is a schematic diagram of the structure connecting the carrier and the valve in this utility model. Figure 1 (Top-down view);

[0018] Figure 5 This is a schematic diagram of the structure connecting the carrier and the valve in this utility model. Figure 2 (Looking up from below)

[0019] Figure 6This is a schematic diagram of the connection between the rotating shaft, crossbar, and dispensing disc of this utility model.

[0020] The attached diagram is labeled as follows: 1. Shell, 2. Discharge gate, 3. Support body, 4. Rotating shaft, 5. Receiving tank, 6. Horizontal plate, 7. Column, 8. Torsion spring, 9. Crossbar, 10. Stirring rod, 11. Support leg, 12. Motor, 13. Guide cylinder, 14. Distributing plate, 15. Protruding rib. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0022] like Figures 1-6 As shown, a feeding device for proppant production includes a housing 1, which is a cylinder with an open top and a closed bottom, and a discharge gate 2 at the bottom of the housing 1; it also includes a support body 3 and a rotating shaft 4. The support body 3 is fixed to the upper opening of the housing 1. The support body 3 is a cylinder, and it has a ring array of receiving grooves 5 with open top and bottom. Each receiving groove 5 has a valve on its lower side. The valve includes a horizontal plate 6 and a column 7. The horizontal plate 6 is a rectangular plate that covers the lower opening of the corresponding receiving groove 5, and the top surface of the horizontal plate slides in contact with the support body 4. The bottom surface of the support body 3 is fixed with a column 7, which is a cylinder. The end of the horizontal plate 6 facing the central axis of the support body 3 is the inner end, and the other end is the outer end. The column 7 movably passes through the outer end of the horizontal plate 6. The horizontal plate 6 and the column 7 are rotatably connected. A torsion spring 8 is connected between the free end of the column 7 and the horizontal plate 6. The center of the support body 3 is provided with a rotating shaft 4 driven by a motor 12. A horizontal bar 9 is horizontally fixed on the peripheral wall of the rotating shaft 4. The horizontal bar 9 is a cylindrical rod. The free end of the horizontal bar 9 extends between any two adjacent horizontal plates 6. Multiple stirring rods 10 are provided on the rotating shaft 4 on the lower side of the horizontal bar 9.

[0023] The outer bottom surface of the housing 1 is provided with a support leg 11; the upper end of the rotating shaft 4 movably passes through the center of the carrier 3, the motor 12 is fixed in the middle of the top surface of the carrier 3, and the output end of the motor 12 is connected downward to the rotating shaft 4.

[0024] The receiving groove 5 on the left is a trapezoidal groove with an upper opening width greater than a lower opening width. The front and rear sides of the receiving groove 5 on the left are the sides where the waist of the receiving groove is located. The left side of the receiving groove 5 on the left is an inclined surface with the upper end tilting to the left. When the crossbar 9 moves from contacting the left horizontal plate 6 to disengaging from the left horizontal plate 6, the horizontal plate 6 rotates to the left rear side of the lower opening of the receiving groove 5 on the left, and the lower opening of the receiving groove 5 is in a fully open state. The radius of the circle containing the multiple columns is greater than the distance from the outer end of the crossbar 9 to the central axis of the rotating shaft 4.

[0025] Each of the torsion springs 8 is fitted around the corresponding column 7; when the horizontal plate 6 covers the lower opening of the corresponding receiving groove 5, the torsion spring 8 connected to the horizontal plate 6 is in its natural state.

[0026] The housing 1 is also provided with a material distribution component, which includes a guide cylinder 13 and a material distribution plate 14. The guide cylinder 13 is a hollow frustum with a larger top and a smaller bottom and open at both ends. The guide cylinder 13 is sleeved on the rotating shaft 4 on the lower side of the crossbar. The upper end of the peripheral wall of the guide cylinder 13 is connected to the inner wall of the housing 1. The material distribution plate 14 is a cone with a smaller top and a larger bottom. The material distribution plate 14 is sleeved and fixed on the rotating shaft 4 on the lower side of the guide cylinder 13 through a through hole in the middle.

[0027] The distributing disc 14 has multiple protrusions 15 arranged on it. Each protrusion is a long strip rod and each protrusion 15 is arranged along the generatrix of the distributing disc 14. Multiple stirring rods 10 are located on the rotating shaft 4 on the lower side of the distributing disc 14.

[0028] In use, the discharge gate 2 of this utility model is closed. In the initial state, the free end of the crossbar 9 extends between any two adjacent cross plates 6. At this time, the lower opening of each receiving slot 5 is blocked by the cross plate 6. Various weighed raw materials are fed into different receiving slots 5. After feeding is completed, the motor 12 is started, and the motor drives the rotating shaft 4 to rotate. The crossbar 9 rotates with the rotating shaft 4. The crossbar 9 presses against the inner end of the adjacent cross plate 6, driving the cross plate 6 to rotate around the central axis of the column. The torsion spring 8 is twisted. During the rotation of the cross plate 6, the lower opening of the receiving slot 5 corresponding to the cross plate 6 is gradually opened. The raw materials in the receiving slot 5 are fed into the guide cylinder 13 through the lower opening of the receiving slot 5. The raw materials in the guide cylinder 13 fall onto the distributing plate 14 through the lower opening of the guide cylinder 13. As the shaft 4 rotates, multiple protrusions 15 can evenly distribute the raw materials into the housing 1 below the distribution plate 14. As the shaft 4 continues to rotate, after the crossbar 9 disengages from the contacting cross plate 6, the cross plate 6 returns to its initial position under the restoring force of the torsion spring 8, resealing the lower opening of the corresponding receiving groove 5. As the shaft 4 continues to rotate, the crossbar 9 drives the lower opening of the next receiving groove 5 to open, allowing another type of raw material to be discharged from the receiving groove 5. Therefore, during the rotation of the shaft 4, the raw materials in multiple receiving grooves 5 are discharged sequentially and evenly distributed into the housing 1, preventing the same type of raw material from accumulating in the housing 1. The multiple raw materials entering the lower part of the housing 1 are stirred by the stirring rod 10, resulting in a more uniform mixture. Opening the discharge gate allows the mixed raw materials to be discharged.

[0029] The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Any equivalent or equivalent modifications or substitutions to the technical solutions of the present utility model without departing from the spirit of the present utility model or the scope of disclosure shall fall within the protection scope of the present utility model.

Claims

1. A batching device for proppant production, comprising a housing (1), wherein a discharge gate (2) is provided at the bottom of the housing (1); characterized in that, It also includes a carrier (3) and a rotating shaft (4). The carrier (3) is fixed to the upper opening of the shell (1). The carrier (3) has a ring array of receiving grooves (5) with openings at the upper and lower ends. Each receiving groove (5) is provided with a valve on the lower side. The valve includes a horizontal plate (6) and a column (7). The horizontal plate (6) covers the lower opening of the corresponding receiving groove (5). The column (7) is fixed to the bottom surface of the carrier (3). The column (7) moves through the outer end of the horizontal plate (6). The horizontal plate (6) and the column (7) are rotatably connected. A torsion spring (8) is connected between the free end of the column (7) and the horizontal plate (6). The center of the carrier (3) is provided with a rotating shaft (4) driven by a motor (12). A horizontal bar (9) is fixed horizontally on the peripheral wall of the rotating shaft (4). The free end of the horizontal bar (9) extends between any two adjacent horizontal plates (6). Multiple stirring rods (10) are provided on the rotating shaft (4) on the lower side of the horizontal bar (9).

2. The feed preparation device for proppant production according to claim 1, characterized in that, The outer bottom surface of the housing (1) is provided with a support leg (11); the upper end of the rotating shaft (4) moves through the center of the carrier (3), the motor (12) is fixed in the middle of the top surface of the carrier (3), and the output end of the motor (12) is connected downward to the rotating shaft (4).

3. The batching device for proppant production according to claim 1, characterized in that, The receiving groove (5) on the left is a trapezoidal groove with an upper opening width greater than the lower opening width. The front and rear sides of the receiving groove (5) on the left are the sides where the waist of the receiving groove is located. The left side of the receiving groove (5) on the left is an inclined surface that slopes to the left at the upper end.

4. The batching device for proppant production according to claim 1, characterized in that, Each of the torsion springs (8) is fitted over the corresponding column (7); when the horizontal plate (6) covers the lower opening of the corresponding receiving groove (5), the torsion springs (8) connected to the horizontal plate (6) are in their natural state.

5. A batching device for proppant production according to claim 1, characterized in that, The housing (1) is also provided with a material distribution component, which includes a guide cylinder (13) and a material distribution plate (14). The guide cylinder (13) is a hollow frustum with a larger top and a smaller bottom and open at both ends. The guide cylinder (13) is sleeved on the rotating shaft (4) on the lower side of the crossbar. The upper end of the peripheral wall of the guide cylinder (13) is connected to the inner wall of the housing (1). The material distribution plate (14) is a cone with a smaller top and a larger bottom. The material distribution plate (14) is sleeved and fixed on the rotating shaft (4) on the lower side of the guide cylinder (13).

6. The batching device for proppant production according to claim 5, characterized in that, The material distribution plate (14) has multiple protrusions (15) arranged on it, and each protrusion (15) is arranged along the generatrix of the material distribution plate (14); multiple stirring rods (10) are located on the rotating shaft (4) on the lower side of the material distribution plate (14).

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