Vibrating screen for oil extraction and its preparation method

Abstract

The present invention relates to a vibrating screen for oil extraction, comprising a frame, an end plate, and a sealing rubber. The top of the frame is a plane, the bottom of the frame is an arc structure, the two ends of the frame are respectively fixed with the end plates, and the sealing rubber is arranged between the end plates and the frame. The present invention also relates to a preparation method for a vibrating screen for oil extraction, comprising the following steps: step one, using polypropylene material to form the frame and the end plates respectively through an injection molding machine; step two, using a flat vulcanizing machine to melt the top of the frame and bond it to the mesh; step three, fixing the sealing rubber and the end plate, and step four, assembling the end plate and the frame. The present invention provides an arc structure at the bottom of the frame and fits it with the vibrating screen, so that the mesh maintains a plane structure during the process of filtering mud. The invention has the advantages of easy installation and long service life, and the preparation method is simple and the cost is low.

Description

Technical Field

[0001] The invention relates to the technical field of oil drilling equipment, and in particular to a vibrating screen for oil extraction and a preparation method thereof. Background Art

[0002] The traditional Derrick FLC 500 petroleum vibrating screen is a flat structure. It adopts a punched steel plate bonded with a stainless steel mesh cloth as the main body design, and galvanized steel plates and sealing strips are riveted and installed at both ends for sealing. When installing the flat screen, due to the flat bottom structure, one end needs to be fixed first and then the other end needs to be pressed down manually, so that the bottom of the flat screen fits the curved surface of the vibrating screen equipment and then tensioned. The whole process is relatively cumbersome; in addition, when tensioning, the tensioning hook on the vibrating screen equipment is inserted into the tensioning hole of the screen, and the screen is tightened and fixed in the outer direction of both ends. Since the contact surface between the vibrating screen and the screen is arc-shaped, and the flat screen is in a bent state and bears a certain force, and the installation force of this tensioning type is not easy to control, the steel plate ribs on the screen often break during use, resulting in premature damage to the screen. The traditional flat screen manufacturing process is relatively cumbersome, with many processes and high processing costs. The sandblasting and plastic spraying processes in the process cause serious environmental pollution and should be avoided as much as possible in modern technology. Summary of the invention

[0003] In order to solve the problems existing in the prior art, the present invention provides a vibrating screen for oil extraction and a preparation method thereof. By setting an arc structure at the bottom of the frame and fitting it with the vibrating screen, the mesh can maintain a flat structure during the process of filtering mud, which has the advantages of easy installation and long service life.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] A vibrating screen for oil extraction comprises a mesh, a frame, an end plate and a sealing rubber. The top of the frame is a plane and the bottom of the frame is an arc structure for matching and fitting with the arc surface on the vibrating screen. The end plates are respectively fixed at both ends of the frame and the sealing rubber is arranged between the end plate and the frame.

[0006] Preferably, the end plate includes a card plate and a hand plate, the card plate is an inverted L-shaped structure, the card plate is clamped on the end of the frame, the hand plate is obliquely arranged on the top of the card plate and is integrally formed with the card plate, and the top end of the hand plate is inclined toward the inside of the frame.

[0007] In any of the above schemes, it is preferred that a plurality of handle holes are provided on the hand plate, so that hands can be inserted into the handle holes to lift the frame, thereby facilitating the transportation of the frame.

[0008] In any of the above solutions, preferably, the card plate is provided with a plurality of screw holes for fixing to the frame, and the card plate is fixed to the side wall of the frame by self-tapping screws.

[0009] In any of the above schemes, preferably, the sealing rubber is bonded to the edge of the side wall of the card plate opposite to the frame, and the edge of the card plate is in contact with the side wall of the frame through the sealing rubber.

[0010] In any of the above solutions, preferably, the mesh is flatly arranged in the frame and fixedly connected to the frame, and the top surface and the bottom surface of the mesh are both planar structures.

[0011] In any of the above schemes, preferably, a plurality of reinforcing ribs arranged in parallel with equal intervals are provided in the frame below the mesh cloth, the reinforcing ribs are integrally formed with the frame, and the reinforcing ribs are in contact with the mesh cloth.

[0012] Preferably, in any of the above solutions, tensioning mounting holes are respectively provided at both ends of the bottom of the frame.

[0013] In any of the above solutions, preferably, the mesh is a stainless steel mesh; the frame is a plastic frame; and the sealing rubber is made of TPE.

[0014] The present invention also provides a method for preparing a vibrating screen for oil extraction, wherein the prepared vibrating screen is any one of the vibrating screens described above, and specifically comprises the following steps:

[0015] Step 1: Design the size of the frame according to the structure of the vibrating screen, determine the size of the end plate according to the size of the frame, and then use polypropylene material to form the frame and the end plate separately through injection molding. When forming the frame, a tightening installation hole for connecting the tensioning hook on the vibrating screen is reserved, and when forming the end plate, a screw hole for connecting the frame body is reserved;

[0016] Step 2: Use a flat vulcanizing machine to heat and pressurize the frame at 200°C to 300°C until the plastic on the top surface of the frame melts, then lay the mesh on the top of the frame and allow the mesh to penetrate into the frame. After cooling and shaping, the mesh is firmly bonded to the frame to form the main structure of the screen.

[0017] Step 3: The sealing rubber is made of TPE and is directly fused to the edge of the card plate through injection molding to achieve the fixation of the sealing rubber and the end plate;

[0018] Step 4: Assemble the end plate and the frame, use self-tapping screws to fix the end plate and the frame bonded with the stainless steel wire mesh cloth, and assemble to form a complete vibrating screen.

[0019] Compared with the prior art, the vibrating screen for oil extraction and the preparation method thereof provided by the present invention have the following beneficial effects:

[0020] 1. By setting the bottom of the frame to be an arc structure that fits the arc surface of the flat vibrating screen, it can fit well with the vibrating screen. When installing, just place the frame on the arc surface of the vibrating screen and tighten it through the tensioning hook. There is no need to fix one end of the flat screen in the prior art, and then manually press the other end down, and tighten and fix it after it is close to the arc surface of the vibrating screen. The installation is convenient and fast, with the advantages of low labor intensity, time saving and labor saving; and the vibrating screen remains in a flat structure without any bending, has high strength, and no risk of structural rupture;

[0021] 2. After the vibration screen is installed, the top surface is a plane, and the mud can be evenly distributed during the mud filtration process; this avoids the bulge in the middle of the flat screen in the prior art, which causes the mud to concentrate on both sides, resulting in a large load and rapid damage at both ends of the screen, thus extending the service life of the vibration screen;

[0022] 3. The setting of the end plate and the sealing rubber can not only play a sealing role, but also the setting of the hand-holding hole makes the overall transportation of the vibrating screen convenient;

[0023] 4. The frame is heated and pressurized by a flat vulcanizing machine to melt the top surface of the frame and bond it to the mesh, thereby fixing the mesh and the frame. The fixing method is simple and quick.

[0024] 5. Since the vibration screen mainly adopts the injection molding process, the manufacturing process is simple, which effectively reduces the production cost and improves the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of a vibrating screen for oil production according to the present invention;

[0026] Figure 2 for Figure 1 A schematic diagram of the front three-dimensional structure of the embodiment shown;

[0027] Figure 3 Figure 1 A schematic diagram of the three-dimensional structure of the back side of the embodiment shown;

[0028] Figure 4 shows Figure 1 A schematic diagram of the front three-dimensional structure of the end plate in the illustrated embodiment;

[0029] Figure 5 shows Figure 1 A schematic diagram of the three-dimensional structure of the back side of the end plate in the illustrated embodiment;

[0030] Figure 6 Figure 1A schematic diagram of the front three-dimensional structure of the sealing rubber in the illustrated embodiment;

[0031] Figure 7 Figure 1 A schematic diagram of the three-dimensional structure of the back side of the sealing rubber in the illustrated embodiment.

[0032] Notes in the figure: 1. Frame; 2. Pallet; 3. Mesh; 4. Sealing rubber; 5. Handle board; 6. Reinforcement ribs. DETAILED DESCRIPTION

[0033] In order to further understand the content of the present invention, the present invention will be described in detail below in conjunction with specific embodiments.

[0034] like Figure 1-7 As shown, according to an embodiment of the vibrating screen for oil extraction and the preparation method thereof of the present invention, a mesh 3 is included. The vibrating screen for oil extraction also includes a frame 1, an end plate, and a sealing rubber 4. The top of the frame 1 is a plane, and the bottom of the frame 1 is an arc structure for matching and fitting with the arc surface on the vibrating screen. The end plates are fixed at both ends of the frame 1, and the sealing rubber 4 is arranged between the end plate and the frame 1.

[0035] The end plate includes a card plate 2 and a hand plate 5. The card plate 2 is an inverted L-shaped structure. The card plate 2 is clamped on the end of the frame 1. The hand plate is obliquely arranged on the top of the card plate 2 and is integrally formed with the card plate 2. The top end of the hand plate 5 is inclined toward the inside of the frame 1.

[0036] The hand plate 5 is provided with a plurality of handle holes, which facilitate the hand to reach into the handle holes to lift the frame 1 and facilitate the transportation of the frame 1.

[0037] The clamping plate 2 is provided with a plurality of screw holes for fixing with the frame 1 , and the clamping plate 2 is fixed with the side wall of the frame 1 by self-tapping screws.

[0038] The sealing rubber 4 is bonded to the edge of the side wall of the card board 2 opposite to the frame 1. The edge of the card board 2 is in contact with the side wall of the frame 1 through the sealing rubber 4, thereby playing a sealing role.

[0039] The mesh cloth 3 is flatly arranged in the frame 1 and fixedly connected to the frame 1 , and the top surface and the bottom surface of the mesh cloth 3 are both planar structures.

[0040] A plurality of reinforcing ribs 6 arranged in parallel and at equal intervals are arranged in the frame 1 below the mesh 3 . The reinforcing ribs 6 are integrally formed with the frame 1 , and the reinforcing ribs 6 are in contact with the mesh 3 .

[0041] Both ends of the bottom of the frame 1 are respectively provided with tensioning mounting holes, which are used to connect with the tensioning hooks on the vibrating screen to put the vibrating screen in a tensioned state.

[0042] The mesh cloth 3 is a stainless steel mesh cloth; the frame 1 is a plastic frame 1; and the material of the sealing rubber 4 is TPE.

[0043] This embodiment also provides a method for preparing a vibrating screen for oil extraction, which specifically includes the following steps:

[0044] Step 1: Design the size of the frame 1 according to the structure of the vibrating screen, determine the size of the end plate according to the size of the frame 1, and then use a polypropylene material to form the frame 1 and the end plate separately through an injection molding machine. When forming the frame 1, a tightening mounting hole for connecting the tensioning hook on the vibrating screen is reserved, and when forming the end plate, a screw hole for connecting the main body of the frame 1 is reserved;

[0045] Step 2: Use a flat vulcanizing machine to heat and pressurize the frame 1 at a temperature of 200°C to 300°C until the plastic on the top surface of the frame 1 melts, then lay the mesh 3 on the top of the frame 1 and allow the mesh 3 to penetrate into the frame 1. After cooling and shaping, the mesh 3 is firmly bonded to the frame 1 to form the main structure of the screen.

[0046] Step 3: The sealing rubber 4 is made of TPE and is directly fused to the edge of the card plate 2 through injection molding to achieve the fixation of the sealing rubber 4 and the end plate;

[0047] Step 4: Assemble the end plate and the frame 1, use self-tapping screws to fix the end plate and the frame 1 bonded with the stainless steel wire mesh cloth 3, and assemble to form a complete vibrating screen.

[0048] The working principle of this embodiment is: place the vibrating screen as a whole on the vibrating screen, make the arc structure at the bottom of the frame fit with the arc surface on the vibrating screen, and then connect the tensioning hook to the tensioning mounting hole to tighten the vibrating screen, so that the mesh maintains a flat structure without any bending, with high strength and long service life.

[0049] Compared with the prior art, this embodiment has the following beneficial effects:

[0050] 1. The bottom of the frame is set to an arc structure that fits the arc surface of the flat vibrating screen, which can fit well with the vibrating screen. When installing, just place the frame on the arc surface of the vibrating screen and tighten it through the tensioning hook. There is no need to fix one end of the flat screen in the prior art, and then manually press the other end down, and tighten and fix it after it is close to the arc surface of the vibrating screen. The installation is convenient and fast, with the advantages of low labor intensity, time saving and labor saving; and the vibrating screen remains in a flat structure without any bending, has high strength, and no risk of structural rupture;

[0051] 2. After the vibration screen is installed, the top surface is a plane, and the mud can be evenly distributed during the mud filtration process; this avoids the bulge in the middle of the flat screen in the prior art, which causes the mud to concentrate on both sides, resulting in a large load and rapid damage at both ends of the screen, thus extending the service life of the vibration screen;

[0052] 3. The setting of the end plate and the sealing rubber can not only play a sealing role, but also the setting of the hand-holding hole makes the overall transportation of the vibrating screen convenient;

[0053] 4. The frame is heated and pressurized by a flat vulcanizing machine to melt the top surface of the frame and bond it to the mesh, thereby fixing the mesh and the frame. The fixing method is simple and quick.

[0054] 5. Since the vibration screen mainly adopts the injection molding process, the manufacturing process is simple, which effectively reduces the production cost and improves the production efficiency.

[0055] It is not difficult for those skilled in the art to understand that the vibrating screen for oil extraction and the preparation method thereof provided by the present invention include any combination of the invention content and the specific implementation method of the above-mentioned invention specification and the various parts shown in the drawings. Due to the limited space and to make the specification concise, the various schemes composed of these combinations are not described one by one. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for preparing a vibrating screen for oil extraction, characterized in that: A vibrating screen for oil extraction is used, comprising a mesh, a frame, an end plate, and a sealing rubber. The top of the frame is a plane, and the bottom of the frame is an arc structure, which is used to match and fit with the arc surface on the vibrating screen. The end plates are fixed at both ends of the frame, and the sealing rubber is arranged between the end plate and the frame. The end plate includes a card plate and a hand plate, the card plate is in an inverted L-shaped structure, the card plate is clamped at the end of the frame, the hand plate is obliquely arranged on the top of the card plate and is integrally formed with the card plate, and the top end of the hand plate is inclined toward the inside of the frame; The mesh is flatly arranged in the frame and fixedly connected to the frame, and the top and bottom surfaces of the mesh are both planar structures; The preparation method specifically comprises the following steps: Step 1: Design the size of the frame according to the structure of the vibrating screen, determine the size of the end plate according to the size of the frame, and then use polypropylene material to form the frame and the end plate separately through injection molding. When forming the frame, a tightening installation hole for connecting the tensioning hook on the vibrating screen is reserved, and when forming the end plate, a screw hole for connecting the frame body is reserved; Step 2: Use a flat vulcanizing machine to heat and pressurize the frame at 200°C to 300°C until the plastic on the top surface of the frame melts, then lay the mesh on the top of the frame and allow the mesh to penetrate into the frame. After cooling and shaping, the mesh is firmly bonded to the frame to form the main structure of the screen. Step 3: The sealing rubber is made of TPE and is directly fused to the edge of the card plate through injection molding to achieve the fixation of the sealing rubber and the end plate; Step 4: Assemble the end plate and the frame, use self-tapping screws to fix the end plate and the frame bonded with the stainless steel wire mesh cloth, and assemble to form a complete vibrating screen.

2. The method for preparing a vibrating screen for oil production according to claim 1, characterized in that: The hand plate is provided with a plurality of hand holes.

3. The method for preparing a vibrating screen for oil production according to claim 1, characterized in that: The card plate is provided with a plurality of screw holes for fixing with the frame, and the card plate is fixed with the side wall of the frame by self-tapping screws.

4. The method for preparing a vibrating screen for oil production according to claim 3, characterized in that: The sealing rubber is bonded to the edge of the side wall of the card plate opposite to the frame.

5. The method for preparing a vibrating screen for oil production according to claim 1, characterized in that: A plurality of reinforcing ribs arranged in parallel and at equal intervals are arranged in the frame below the mesh cloth. The reinforcing ribs are integrally formed with the frame, and the reinforcing ribs are in contact with the mesh cloth.

6. The method for preparing a vibrating screen for oil production according to claim 1, characterized in that: Both ends of the bottom of the frame are respectively provided with tensioning mounting holes.

7. The method for preparing a vibrating screen for oil production according to claim 1, characterized in that: The mesh is a stainless steel mesh; the frame is a plastic frame; and the sealing rubber is made of TPE.

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