Petroleum frame vibrating screen composed of multiple layers of structures

Abstract

The invention relates to the technical field of vibrating screens, in particular to a petroleum frame vibrating screen composed of a multi-layer structure. Which comprises a screen frame and a multi-layer net structure installed in the screen frame, and is characterized in that the net structure sequentially comprises a bottom net, a middle net, a surface net and a surface net protection net, the bottom net is located on the bottommost layer and has the relatively minimum mesh number and the maximum wire diameter, the middle net is located on the bottom net and has the relatively medium mesh number and the relatively medium wire diameter, and the surface net is located on the uppermost layer and has the relatively maximum mesh number; the pore density of the surface net is greater than that of the middle net. The petroleum frame vibrating screen composed of the multiple layers of structures comprises the screen frame and the multiple layers of net structures installed in the screen frame, the screening efficiency is improved while the screening precision is guaranteed, and the petroleum frame vibrating screen is long in service life and high in practicability.

Description

Technical Field

[0001] The invention relates to the technical field of vibrating screens, in particular to a petroleum frame vibrating screen composed of a multi-layer structure. Background Art

[0002] In the process of oil extraction, the vibrating screen is a key solid-liquid separation equipment, and its performance directly affects the efficiency and quality of oil extraction. Traditional vibrating screens mostly adopt a two-layer or three-layer structure. However, with the development of oil extraction technology and the improvement of screening efficiency requirements, these traditional vibrating screens have gradually exposed some shortcomings.

[0003] (1) Two-layer or three-layer vibrating screens are often difficult to achieve both high efficiency and long service life when processing materials of different particle sizes. For example, although the surface screen can provide better separation in some cases, its porosity is relatively low, which can easily cause blockage and peeling, affecting the screening efficiency.

[0004] (2) Traditional vibrating screens have poor wear resistance and impact resistance and are easily damaged by long-term vibration and material impact, resulting in frequent screen replacement, increased maintenance costs and production downtime. Summary of the invention

[0005] The present invention proposes a petroleum frame vibrating screen composed of a multi-layer structure, comprising a screen frame and a multi-layer mesh structure installed in the screen frame, which improves the screening efficiency while ensuring the screening accuracy, has a long service life and is highly practical.

[0006] The technical solution adopted by the present invention is: a petroleum frame vibrating screen composed of a multi-layer structure, including a screen frame and a multi-layer mesh structure installed in the screen frame, characterized in that: the mesh structure includes a bottom mesh, a middle mesh, a surface mesh, and a surface mesh protection mesh in sequence, the bottom mesh is located at the bottom layer and has a relatively small mesh number and a largest wire diameter, the middle mesh is located above the bottom mesh and has a relatively medium mesh number and a relatively medium wire diameter, the surface mesh is located at the top layer and has a relatively large mesh number, and the pore density of the surface mesh is greater than the pore density of the middle mesh.

[0007] As a further improvement of the present invention, the screen frame is welded by four rectangular tubes and a plurality of round wires, the four rectangular tubes constitute a frame structure of the screen frame, and the plurality of round wires constitute a basic grid structure of the screen frame.

[0008] As a further improvement of the present invention, the size of the screen frame is 1165×585×41.8 mm, the size of the rectangular tube is 15×30 mm, and the diameter of the round wire is 2.8 mm.

[0009] As a further improvement of the present invention, the mesh structure is located on a basic mesh structure composed of a plurality of round wires.

[0010] As a further improvement of the present invention, the outside of the screen frame is coated with a polyurethane frame made of polyurethane material, which has good wear resistance and impact resistance and can effectively reduce the noise generated during the working process.

[0011] As a further improvement of the present invention, the surface mesh is placed on the top of the screen frame, a label is provided on the upper surface of the screen frame and the label is placed in the interlayer between the surface mesh and the screen frame.

[0012] As a further improvement of the present invention, the surface mesh protection net is a stainless steel wire mesh (with coarse wire and large holes) which is used to protect the mesh structure, making the multi-layer mesh structure more durable.

[0013] Beneficial effects of the present invention:

[0014] (1) The present invention adopts a multi-layer mesh structure, which can achieve both high efficiency and high precision in screening: the structure of the bottom mesh helps to increase the service life of the screen and reduce the phenomenon of screen damage; the structure of the middle mesh provides a stable screening effect while ensuring a high porosity; the structure of the surface mesh further improves the screening accuracy and ensures that fine particles can be effectively separated; the structure of the surface mesh protection mesh protects the surface mesh to the maximum extent without affecting the screening.

[0015] (2) The screen frame of the present invention is welded by rectangular tubes and round wires, which not only has a stable structure but also has high wear resistance and impact resistance. By coating the outside of the screen frame with polyurethane material, the noise generated during the working process is effectively reduced, the working environment of the operator is improved, and the adverse impact on the surrounding environment is reduced.

[0016] (3) The provision of the surface mesh protection layer of the present invention further improves the service life of the screen, prevents the surface mesh from being damaged by material impact during use, ensures the stability and durability of the screening effect, and thus reduces maintenance costs and production downtime; at the same time, the stainless steel material of the surface mesh protection layer not only has good corrosion resistance, but also can maintain its structural stability and screening performance under high temperature and harsh environment, so that the vibrating screen can operate reliably under various complex working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a reference schematic diagram of a petroleum frame vibrating screen composed of a multi-layer structure of the present invention;

[0018] Figure 2 It is a cross-sectional view of a petroleum frame vibrating screen composed of a multi-layer structure of the present invention;

[0019] Figure 3 It is a partial cross-sectional view of a petroleum frame vibrating screen composed of a multi-layer structure of the present invention.

[0020] As shown in the figure: 1. Screen frame; 101. Rectangular tube; 102. Round wire; 103. Polyurethane frame; 201. Bottom net; 202. Middle net; 203. Surface net; 204. Surface net protection net; 3. Label. DETAILED DESCRIPTION

[0021] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may change accordingly according to their different locations and different usage states; therefore, these or other directional terms should not be interpreted as restrictive terms.

[0022] The singular forms "a", "said" and "the" used in this specification are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and implementation methods. It should be understood that the implementation methods described herein are only used to explain this application and are not used to limit this application.

[0024] The present invention provides the following Figure 1-3 The petroleum frame vibration screen composed of a multi-layer structure shown in the figure includes a screen frame and a multi-layer mesh structure installed in the screen frame, characterized in that: the mesh structure includes a bottom mesh 201, a middle mesh 202, a surface mesh 203, and a surface mesh protection mesh 204 in sequence, the bottom mesh 201 is located at the bottom layer and has a relatively small mesh number and a largest wire diameter, the middle mesh 202 is located above the bottom mesh 201 and has a relatively medium mesh number and a relatively medium wire diameter, the surface mesh 203 is located at the top layer and has a relatively large mesh number, and the pore density of the surface mesh 203 is greater than the pore density of the middle mesh 202.

[0025] In the present invention, the screen frame 1 is welded by four rectangular tubes 101 and a plurality of round wires 102, the four rectangular tubes 101 constitute the frame structure of the screen frame 1, and the plurality of round wires 102 constitute the basic grid structure of the screen frame 1. The size of the screen frame 1 is 1165×585×41.8 mm, the size of the rectangular tube 101 is 15×30 mm, the diameter of the round wire 102 is 2.8 mm, and the mesh structure is located on the basic grid structure composed of the plurality of round wires 102. The outside of the screen frame 1 is coated with a polyurethane frame 103 made of polyurethane material, which has good wear resistance and impact resistance, and can effectively reduce the noise generated during the working process.

[0026] In the present invention, the surface mesh 203 is placed on the top of the screen frame 1, a label 3 is provided on the upper surface of the screen frame 1 and the label 3 is placed in the interlayer between the surface mesh 203 and the screen frame 1, and the surface mesh protection net 204 is a stainless steel wire mesh (coarse wire and large holes) used to protect the mesh structure and make the multi-layer mesh structure more durable.

[0027] Working principle: When the present invention is implemented, the petroleum material is fed into the surface mesh 203 on the top of the screen frame 1. Driven by the vibration mechanism, the material is screened on the surface mesh 203 and the middle mesh 202. Since the pores of the surface mesh 203 and the middle mesh 202 are small, the particles will be retained on the surface mesh 203, and the bottom mesh 201 adopts a tic-tac-toe structure, which helps to improve the fluidity of the material and reduce blockage, thereby improving the screening efficiency.

[0028] The screen frame 1 is welded from a rectangular tube 101 and a round wire 102. The stability of the structure and the wear resistance and impact resistance of the polyurethane frame 103 enable the entire screen frame 1 to maintain long-term stable operation even in harsh working environments. At the same time, the shock-absorbing properties of the polyurethane material further reduce the noise generated during the working process, providing operators with a safer and more comfortable working environment. The setting of the surface mesh protection net 204 can effectively prevent the surface mesh 203 from being damaged by material impact during use, thereby extending the service life of the screen and ensuring the stability and durability of the screening effect. In addition, the setting of the label 3 facilitates identification and management.

[0029] In actual application, in the test of the present invention at the oil field site, the vibrating screen has better screening efficiency and accuracy than the traditional single-layer structure screen when processing crude oil with more sediment. Under the same conditions, the vibrating screen of the present invention can reduce the blockage phenomenon by about 20% and improve the screening accuracy by about 15%, significantly improving the extraction efficiency and quality of oil.

[0030] In summary, the petroleum frame vibrating screen of the present invention achieves high-efficiency and high-precision screening effects through the design of a multi-layer mesh structure, combined with the selection of wear-resistant and impact-resistant materials and structural optimization, while reducing noise, improving the stability and service life of the equipment, and providing an efficient and reliable screening solution for industries such as oil extraction.

[0031] The above implementation modes are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned implementation modes, a person skilled in the art should understand that the technical solutions described in the aforementioned implementation modes can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the implementation modes of the present invention.

Claims

1. A petroleum frame vibrating screen composed of a multi-layer structure, comprising a screen frame and a multi-layer mesh structure installed in the screen frame, characterized in that: The mesh structure includes a bottom mesh, a middle mesh, a surface mesh, and a surface mesh protection mesh in sequence. The bottom mesh is located at the bottom layer and has the smallest mesh number and the largest wire diameter. The middle mesh is located above the bottom mesh and has a relatively medium mesh number and wire diameter. The surface mesh is located at the top layer and has the largest mesh number. The pore density of the surface mesh is greater than that of the middle mesh.

2. The petroleum frame vibrating screen composed of a multi-layer structure according to claim 1, characterized in that: The screen frame is welded by four rectangular tubes and a plurality of round wires, the four rectangular tubes constitute a frame structure of the screen frame, and the plurality of round wires constitute a basic grid structure of the screen frame.

3. The petroleum frame vibrating screen composed of a multi-layer structure according to claim 2 is characterized in that: The size of the screen frame is 1165×585×41.8 mm, the size of the rectangular tube is 15×30 mm, and the diameter of the round wire is 2.8 mm.

4. The petroleum frame vibrating screen composed of a multi-layer structure according to claim 2 is characterized in that: The mesh structure is located on a basic mesh structure composed of a plurality of round wires.

5. The petroleum frame vibrating screen composed of a multi-layer structure according to claim 2, characterized in that: The outside of the screen frame is coated with a polyurethane frame made of polyurethane material, which has good wear resistance and impact resistance and can effectively reduce the noise generated during the working process.

6. The petroleum frame vibrating screen composed of a multi-layer structure according to claim 1, characterized in that: The surface mesh is placed on the top of the screen frame, a label is provided on the upper surface of the screen frame and the label is placed in the interlayer between the surface mesh and the screen frame.

7. The petroleum frame vibrating screen composed of a multi-layer structure according to claim 1, characterized in that: The surface mesh protection net is a stainless steel wire mesh (with coarse wire and large holes), which is used to protect the mesh structure and make the multi-layer mesh structure more durable.

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