Shaping machine for petroleum fracturing sand

Abstract

The utility model provides a shaper for petroleum fracturing sand, which is used for solving the problems of substandard crushing rate and lower sphericity of the fracturing sand in the prior art, and comprises a rack, a driving mechanism, a shaping cavity, a whole core, a first feed port, a first discharge port and a plurality of prismatic whole blocks, the whole core is arranged in the shaping cavity, the multiple prismatic whole blocks are arranged on the inner side face of the shaping cavity, the driving mechanism drives the whole core to rotate at a high speed, and fracturing sand to be shaped in the whole core is thrown into the shaping cavity through the centrifugal effect and collides with the prismatic whole blocks to form umbrella cover springback; and the other to-be-shaped fracturing sand in the shaping cavity is rubbed and inserted with the other to-be-shaped fracturing sand, so that the shape of the fracturing sand is rounder, the particle size of the fracturing sand is reduced, and it is ensured that the fracturing sand meets the follow-up use requirement.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of petroleum fracturing sand production, especially relates to a shaping machine for petroleum fracturing sand. BACKGROUND

[0002] Fracturing sand, also known as proppant or fracturing quartz sand, is a fine-grained quartz sand that has been finely processed and has characteristics such as high hardness, high wear resistance, and high compressive strength. Fracturing sand has multiple important uses in the oil industry, not only as a proppant to increase oil and gas production, but also plays an important role in acidizing treatment, sand control, improving construction success rate, and adapting to complex formations. With the continuous progress of oil exploitation technology and changes in market demand, the application field and performance requirements of fracturing sand will continue to expand and improve.

[0003] When fracturing sand is used as an oil proppant, it is usually filled in rock fractures to support the closure of fractures and maintain the smoothness of oil and gas channels, thereby increasing oil and gas production. However, the fracturing sand produced by the equipment in the prior art generally has the problems of substandard crushing rate and low sphericity, which affects oil and gas production during subsequent reuse. SUMMARY

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a shaping machine for petroleum fracturing sand to solve the problems of substandard crushing rate and low sphericity of fracturing sand in the prior art.

[0005] To achieve the above-mentioned purposes and other related purposes, the utility model provides a shaping machine for petroleum fracturing sand, which comprises a rack, a driving mechanism, a shaping cavity, a core, a first feed inlet, a first discharge outlet, and a plurality of prismatic blocks. The driving mechanism and the shaping cavity are arranged on the rack. The core is arranged in the shaping cavity and is provided with a containing cavity, a second feed inlet, and a plurality of second discharge outlets. The second feed inlet is arranged at the top of the core, and the first feed inlet and the second feed inlet are in communication. The plurality of second discharge outlets are arranged on the side surface of the core at intervals, and the second discharge outlets are in communication with the shaping cavity. The second feed inlet and the second discharge outlets are in communication with the containing cavity. The first discharge outlet is in communication with the shaping cavity. The fracturing sand to be shaped enters the containing cavity through the first feed inlet and the second feed inlet. The bottom of the core is connected with the driving mechanism. The plurality of prismatic blocks are arranged on the inner side surface of the shaping cavity. The driving mechanism is used to drive the core to rotate so as to throw the fracturing sand to be shaped in the containing cavity onto the prismatic blocks of the shaping cavity. After the fracturing sand to be shaped collides with the prismatic blocks, it rebounds into the shaping cavity and is intertwined with the fracturing sand to be shaped located in the shaping cavity, forming the shaped fracturing sand, which is transmitted out of the shaping cavity through the first discharge outlet.

[0006] Optionally, the core comprises a plurality of first guide blocks, and the second discharge outlet is formed between two first guide blocks.

[0007] Optionally, the outer side surface of the first guide block is provided with a second guide block, and the second guide block is made of wear-resistant material.

[0008] Optionally, the second guide block is made of high chromium alloy.

[0009] Optionally, the driving mechanism comprises a driving motor, a first pulley, a second pulley, a belt, a transmission shaft and a transmission box; the driving motor is arranged on the rack, the first pulley is connected with the driving motor; the second pulley is arranged on the transmission shaft, the transmission box is arranged on the rack, and the transmission shaft is connected with the whole core through the transmission box.

[0010] Optionally, the shaping machine further comprises a lubricating oil cooling mechanism, and the lubricating oil cooling mechanism is arranged on the rack and used for cooling the lubricating oil in the transmission box.

[0011] Optionally, the lubricating oil cooling mechanism comprises a first pipeline, a second pipeline, a pump and a cooling box; one end of the first pipeline is connected with the transmission box, the other end is connected with the pump, the pump is connected with the cooling box, the cooling box is used for cooling and treating the lubricating oil, and one end of the second pipeline is connected with the transmission box and the other end is connected with the cooling box.

[0012] Optionally, the bottom of the shaping cavity is provided with a whole core mounting seat and a plurality of fracture sand guide pieces which are spaced apart in the circumferential direction of the whole core mounting seat, and one end of each fracture sand guide piece away from the whole core mounting seat is connected with the inner side wall of the shaping cavity; a first discharge port is formed between two adjacent fracture sand guide pieces; and the fracture sand guide pieces are used for guiding the shaped fracture sand in the shaping cavity into the first discharge port.

[0013] Optionally, the fracture sand guide pieces are two, and the two fracture sand guide pieces are symmetrically arranged in the circumferential direction of the whole core mounting seat.

[0014] Optionally, the fracture sand guide pieces are two inclined plates which are arranged to be inclined relative to the horizontal plane, and the opening direction formed by the two inclined plates is arranged to be away from the first feeding port.

[0015] As described above, the shaping machine for petroleum fracturing sand has at least the following beneficial effects: by arranging the whole core in the shaping cavity and arranging a plurality of prismatic blocks on the inner side surface of the shaping cavity, the high-speed rotation of the whole core is driven by the driving mechanism, the to-be-shaped fracturing sand in the whole core is thrown into the shaping cavity by the centrifugal effect, and the to-be-shaped fracturing sand is bounced off in the shape of an umbrella after colliding with the prismatic blocks, and the to-be-shaped fracturing sand in the shaping cavity is intertwined with each other, so that the appearance of the fracturing sand is more round, and the particle size of the fracturing sand is reduced, so as to ensure that the fracturing sand meets the subsequent use requirements. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1An angle structure schematic view of the shaping machine for the petroleum fracturing sand is shown.

[0017] Figure 2 Another angle structure schematic view of the shaping machine for the petroleum fracturing sand is shown.

[0018] Figure 3 Still another angle structure schematic view of the shaping machine for the petroleum fracturing sand is shown.

[0019] Figure 4 A structure schematic view of a whole core of the shaping machine for the petroleum fracturing sand is shown.

[0020] Figure 5 A structure schematic view of a shaping cavity of the shaping machine for the petroleum fracturing sand is shown. DETAILED DESCRIPTION

[0021] The following embodiments are described by way of specific examples. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification.

[0022] Please refer to all the following drawings. It should be understood that the structure, proportion, size, etc. shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the conditions that can be implemented by the present application. Therefore, it does not have technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "up", "down", "left", "right", "middle" and "one" used in the specification are only for the convenience of clear description, and are not used to limit the scope of the present application. The change or adjustment of the relative relationship, without substantially changing the technical content, is also considered as the scope of the present application.

[0023] The following embodiments are only for illustration. Each embodiment can be combined, which is not limited to the content shown in the following single embodiment.

[0024] Please refer to Figures 1-4The utility model provides a kind of petroleum fracturing sand's shaper, it include: rack 1, drive mechanism, shaping cavity 3, whole core 4, first feed inlet 5, first discharge port 6 and multiple prismatic whole blocks 7;Drive mechanism and shaping cavity 3 are arranged on rack 1;Whole core 4 is arranged in shaping cavity 3, and whole core 4 is provided with accommodating cavity 41, second feed inlet 42 and multiple second discharge ports 43, and second feed inlet 42 is arranged on the top of whole core 4, and first feed inlet 5 and second feed inlet 42 are communicated;Multiple second discharge ports 43 are arranged on the side of whole core 4 at intervals, and second discharge port 43 is communicated with shaping cavity 3;Second feed inlet 42 and second discharge port 43 are communicated with accommodating cavity 41;First discharge port 6 is communicated with shaping cavity 3;To be shaped fracturing sand enters into accommodating cavity 41 by first feed inlet 5 and second feed inlet 42;The bottom of whole core 4 is connected with drive mechanism;Multiple prismatic whole blocks 7 are arranged on the inner side of shaping cavity 3;Drive mechanism is used to drive whole core 4 to rotate, to throw the fracturing sand to be shaped in accommodating cavity 41 to the prismatic whole block of shaping cavity 3;The fracturing sand to be shaped is bounced back to shaping cavity 3 after colliding with prismatic whole block, and is mutually rubbed and inserted with the fracturing sand to be shaped in shaping cavity 3, to form the fracturing sand after shaping, and the fracturing sand after shaping is transmitted out of shaping cavity 3 by first discharge port 6.

[0025] The upper portion of shaping cavity 3 can be provided with a feed hopper, and the fracturing sand to be shaped can be conveyed into the feed hopper by a pipeline or a conveyor, and the fracturing sand to be shaped in the feed hopper can enter the accommodating cavity 41 of the whole core 4 through the first feed inlet 5 and the second feed inlet 42 by the action of gravity. The prismatic whole block 7 can have a triangular prism structure, and one side of the extension direction of the prismatic whole block 7 is smoothly transitioned, and the connection between the adjacent two prismatic whole blocks 7 is connected by an arc. The extension direction of the prismatic whole block 7 is parallel to the central axis of the shaping cavity 3. The whole core 4 is rotatably connected to the bottom of the shaping cavity 3. The first discharge port 6 is arranged at the bottom of the shaping cavity 3.

[0026] When the drive mechanism drives the whole core 4 to rotate, the rotation of the whole core 4 generates a centrifugal force, which in turn drives the fracturing sand to be shaped in the accommodating cavity 41 to be thrown out of the shaping cavity 3 through the second discharge port 43. When the fracturing sand to be shaped is thrown out of the shaping cavity 3, the fracturing sand to be shaped will collide with the prismatic whole block 7 due to the action of the centrifugal force. Since the prismatic whole block 7 is prismatic, the fracturing sand to be shaped will bounce back into the shaping cavity 3 in a shape similar to an umbrella surface, thereby being mutually rubbed and inserted with the fracturing sand to be shaped in the shaping cavity 3, so as to remove the irregular shape of the fracturing sand to be shaped, make the shape of the fracturing sand to be shaped more round, and reduce the particle size of the fracturing sand, thereby achieving the purpose of shaping. Due to the mutual rubbing and insertion of the fracturing sand to be shaped in the shaping cavity 3, the centrifugal force imparted to the fracturing sand to be shaped by the whole core 4 gradually decreases. When the centrifugal force of the fracturing sand to be shaped decreases to a certain range, the fracturing sand to be shaped gradually falls downward due to its own gravity, thereby being transmitted out through the first discharge port 6 arranged at the bottom of the shaping cavity 3, and at this time, the fracturing sand to be shaped is also shaped.

[0027] In an embodiment, the whole core 4 comprises a plurality of first guide blocks 44, and the second discharge port 43 is formed between two first guide blocks 44. The plurality of first guide blocks 44 are arranged in a diverging manner on the whole core 4, and the first guide blocks 44 enclose the receiving cavity 41 of the whole core 4 towards one end of the central axis of the whole core 4. In an embodiment, the first guide blocks 44 can be in a circular arc structure. By arranging the first guide blocks 44 in a circular arc structure, the fracturing sand to be shaped can be uniformly distributed in the shaping cavity 3 after being thrown into the shaping cavity 3.

[0028] In an embodiment, the outer side of the first guide block 44 is provided with a second guide block 45, and the second guide block 45 is made of wear-resistant material. The second guide block 45 can be a cladding member wrapped around the outer side of the first guide block 44, which is made of wear-resistant material to reduce the wear of the first guide block 44. In an implementation, the second guide block 45 is made of high-chromium alloy, which has high strength and excellent wear resistance, thereby reducing the wear of the second guide block 45 caused by the collision between the fracturing sand to be shaped and the second guide block 45, and prolonging the service life of the second guide block 45.

[0029] In an embodiment, the driving mechanism comprises a driving motor 21, a first pulley, a second pulley 22, a belt 23, a transmission shaft, and a transmission box 24. The driving motor 21 is arranged on the rack 1, and the first pulley is connected with the driving motor 21. The second pulley 22 is arranged on the transmission shaft, and the transmission box 24 is arranged on the rack 1. The transmission shaft is connected with the whole core 4 through the transmission box 24. Bearings and other transmission structures can be arranged in the transmission box 24 to realize the rotary connection between the transmission shaft and the rack 1.

[0030] In an embodiment, the shaping machine further comprises a lubricating oil cooling mechanism arranged on the rack 1. The lubricating oil cooling mechanism is used to cool the lubricating oil in the transmission box 24. Specifically, since the whole core 4 rotates at high speed during use of the shaping machine, the transmission structures such as bearings in the transmission box 24 generate a large amount of heat due to high-speed rotation. Therefore, the lubricating oil cooling mechanism is arranged in this embodiment to cool the lubricating oil in the transmission box 24, thereby cooling the transmission structures such as bearings and improving the service life of the transmission structures in the transmission box 24.

[0031] The lubricating oil cooling mechanism can include a first pipe 81, a second pipe 82, a pump and a cooling box 83; one end of the first pipe 81 is connected with the transmission box 24, the other end is connected with the pump, the pump is connected with the cooling box 83, the cooling box 83 is used for cooling the lubricating oil, one end of the second pipe 82 is connected with the transmission box 24, and the other end is connected with the cooling box 83. In the embodiment, the lubricating oil cooling mechanism can suck the lubricating oil in the transmission box 24 into the cooling box 83 through the pumping action of the pump to cool the lubricating oil, and the cooled lubricating oil can flow back into the transmission box 24. The cooling box 83 can be provided with an air-cooled or water-cooled radiator, so as to cool the lubricating oil. Of course, other cooling structures can also be provided, and the embodiment is not limited in this regard, as long as the lubricating oil can be cooled.

[0032] Please refer to Figure 5 In an embodiment, the bottom of the shaping cavity 3 is provided with a core mounting seat 10 and a plurality of fracturing sand guides 9 spaced circumferentially on the core mounting seat 10, one end of each fracturing sand guide 9 away from the core mounting seat 10 is connected with the inner side wall of the shaping cavity 3, a first discharge port 6 is formed between two adjacent fracturing sand guides 9, and the fracturing sand guide 9 is used to guide the shaped fracturing sand in the shaping cavity 3 into the first discharge port 6. The fracturing sand guide 9 can be a protruding structure facing the first feeding port 5, and when the shaped fracturing sand falls on the bottom of the shaping cavity 3 by gravity, the fracturing sand guide 9 guides the shaped fracturing sand into the first discharge port 6 to prevent the fracturing sand from accumulating in the shaping cavity 3. In the embodiment, the fracturing sand guide 9 is two, and the two fracturing sand guides 9 are symmetrically arranged circumferentially on the core mounting seat 10, and two second feeding ports 42 are formed at the gap between the two fracturing sand guides 9.

[0033] The fracturing sand guide 9 can be composed of two inclined plates inclined relative to the horizontal plane, and the opening direction formed by the two inclined plates is arranged away from the first feeding port. The belt 23 of the driving mechanism can extend to the second belt pulley 22 of the transmission shaft through the opening formed by the two inclined plates, and the first pipe 81 and the second pipe 82 of the lubricating oil cooling structure can be connected with the transmission box 24 through the opening formed by the two inclined plates, that is, the opening formed by the two inclined plates provides a space for avoiding the belt 23, the first pipe 81 and the second pipe 82, which facilitates the installation of the belt 23, the first pipe 81 and the second pipe 82.

[0034] In other implementations, the rack 1 can also be provided with an observation platform, and a user can stand on the observation platform to observe the working condition in the shaping cavity 3. A control frequency conversion cabinet can also be provided, and the control frequency conversion cabinet can include a plurality of buttons for controlling the operation of the shaping machine, such as buttons for adjusting the rotating speed of the driving motor 21 and buttons for starting and stopping the shaping machine.

[0035] In summary, the utility model discloses a plurality of prismatic whole blocks 7 are arranged on the inside surface of the shaping cavity 3 and the core 4 is arranged in the shaping cavity 3, the high -speed rotation of the core 4 is driven by the drive mechanism, the sand to be shaped and fractured in the core 4 is thrown to the shaping cavity 3 by the centrifugal effect, and the sand to be shaped and fractured is formed umbrella face rebound by the collision with the prismatic whole block 7, and the sand to be shaped and fractured in the shaping cavity 3 is mutually rubbed and inserted, thereby the appearance of the sand to be shaped and fractured is more round, and the particle size of the sand to be shaped and fractured is reduced, the sand to be shaped and fractured is ensured to meet the subsequent use requirement, and the utility model discloses the effective overcome the various shortcomings in the prior art and have the height industrial utilization value.

[0036] The above embodiment only illustrates the principle and effect of the utility model, and is not used to limit the utility model. Any person skilled in the art can modify or change the above embodiment without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A petroleum fracturing sand shaping machine, characterized in that: The shaping machine comprises: a frame, a driving mechanism, a shaping cavity, a shaping core, a first feed port, a first discharge port and a plurality of prismatic blocks; The driving mechanism and the shaping cavity are arranged on the frame; The whole core is arranged in the shaping cavity, and the whole core is provided with a accommodating cavity, a second feed port and a plurality of second discharge ports, the second feed port is arranged at the top of the whole core, and the first feed port and the second feed port are connected; a plurality of second discharge ports are arranged at intervals on the side of the whole core, and the second discharge port is connected to the shaping cavity; the second feed port and the second discharge port are connected to the accommodating cavity; the first discharge port is connected to the shaping cavity; the fracturing sand to be shaped enters the accommodating cavity through the first feed port and the second feed port; the bottom of the whole core is connected to the driving mechanism; a plurality of the prismatic blocks are arranged on the inner side of the shaping cavity; The driving mechanism is used to drive the whole core to rotate so as to throw the to-be-shaped fracturing sand in the accommodating cavity onto the prismatic whole block in the shaping cavity; after colliding with the prismatic whole block, the to-be-shaped fracturing sand rebounds into the shaping cavity, and rubs and inserts with the to-be-shaped fracturing sand in the shaping cavity to form shaped fracturing sand, and the shaped fracturing sand is transmitted out of the shaping cavity through the first discharge port.

2. The petroleum fracturing sand shaping machine according to claim 1, characterized in that: The whole core further includes a plurality of first guide blocks, and a second discharge port is formed between two of the first guide blocks.

3. The petroleum fracturing sand shaping machine according to claim 2, characterized in that: A second guide block is provided on the outer side of the first guide block, and the second guide block is made of wear-resistant material.

4. The petroleum fracturing sand shaping machine according to claim 3, characterized in that: The second guide block is made of high chromium alloy.

5. The petroleum fracturing sand shaping machine according to claim 1, characterized in that: The driving mechanism includes a driving motor, a first pulley, a second pulley, a belt, a transmission shaft and a transmission box; the driving motor is arranged on the frame, and the first pulley is connected to the driving motor; the second pulley is arranged on the transmission shaft, the transmission box is arranged on the frame, and the transmission shaft is connected to the whole core through the transmission box.

6. The petroleum fracturing sand shaping machine according to claim 5, characterized in that: The shaping machine further comprises a lubricating oil cooling mechanism, which is arranged on the frame and is used to cool the lubricating oil in the transmission box.

7. The petroleum fracturing sand shaping machine according to claim 6, characterized in that: The lubricating oil cooling mechanism includes a first pipe, a second pipe, a pump and a cooling box; one end of the first pipe is connected to the transmission box, and the other end is connected to the pump, the pump is connected to the cooling box, and the cooling box is used to cool the lubricating oil; one end of the second pipe is connected to the transmission box, and the other end is connected to the cooling box.

8. The petroleum fracturing sand shaping machine according to claim 7, characterized in that: A core mounting seat and a plurality of fracturing sand guides spaced circumferentially from the core mounting seat are provided at the bottom of the shaping cavity, wherein one end of the fracturing sand guide away from the core mounting seat is connected to the inner side wall of the shaping cavity; The first discharge port is formed between two adjacent fracturing sand guides; The fracturing sand guide is used to guide the shaped fracturing sand in the shaping cavity into the first discharge port.

9. The petroleum fracturing sand shaping machine according to claim 8, characterized in that: There are two fracturing sand guides, which are symmetrically arranged on the circumference of the whole core mounting seat.

10. The petroleum fracturing sand shaping machine according to claim 9, characterized in that: The fracturing sand guide is composed of two inclined plates arranged obliquely relative to a horizontal plane, and the opening formed by the two inclined plates is arranged in a direction away from the first feed port.

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