CN210730137U

CN210730137U - Wave type vibrating screen

Info

Publication number: CN210730137U
Application number: CN201921689721.2U
Authority: CN
Inventors: 李文杰; 李彦成
Original assignee: HEBEI HENGYING WIRE CLOTH CO L
Current assignee: HEBEI HENGYING WIRE CLOTH CO L
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-06-12
Anticipated expiration: 2029-10-10

Abstract

The utility model provides a wavy vibrating screen belongs to oil development equipment technical field. The wavy vibration screen comprises a frame and a screen, wherein the screen is adhered to the frame; the frame comprises an inner core frame, a steel wire mesh and an injection molding material; the inner core frame is welded with a steel wire mesh, and the inner core frame and the steel wire mesh are coated with a layer of injection molding material; the screen cloth is the wave, including surface course, middle level and bottom three-layer filter screen, bonds through the polyethylene net piece between the three-layer filter screen. The frame of the utility model adopts a high-strength injection molding frame and a properly tensioned screen to form a reliable whole, thereby greatly enhancing the flow rate which can be borne by the vibrating screen; the high-quality high-strength injection molding frame enhances the corrosion resistance and the toughness of the vibrating screen, has good vibration damping performance, and prolongs the service life of the vibrating screen.

Description

Wave type vibrating screen

Technical Field

The utility model belongs to the technical field of oil development equipment, concretely relates to wavy vibrating screen.

Background

The vibrating screen for drilling fluid is one first stage solid control equipment in solid phase control system for drilling mud, and has the functions of treating and separating drill cuttings from mud returning from well head, making mud enter the second stage separating equipment and treating solid phase mud particles of over 85 micron size. The drilling fluid vibrating screen is designed according to the vibration theory that the screen surface generates a linear motion track. The included angle between the perpendicular bisector of the two motors and the sieve is an angle a, so that the rotation directions of the two excitation motors are opposite, the excitation vibration forces generated by the mutual motion of the two excitation motors are mutually offset in the X direction, and the excitation vibration force is zero. And the exciting forces of the two motors are mutually superposed in the Y direction so as to drive the whole upper and lower sieve boxes to reciprocate along the Y-axis direction, and meanwhile, the slurry on the surface of the screen is thrown up along the Y-axis direction and then moves forwards when falling freely, so that the slurry is continuously thrown up and falls down to move forwards, the slurry is leaked into the slurry tank through the vibrating screen, most solid particles in the slurry are sieved out, and the slurry purifying effect is achieved. The vibrating screen in the market is a metal plate type vibrating screen formed by bonding a metal plate and a screen. The filter area is small, and the filter efficiency is low; the bearing capacity of the vibrating screen formed by the metal plate is poor, and the like.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a wave-type vibrating screen to solve above-mentioned technical problem.

In order to achieve the above object, the technical solution of the present invention is:

a wavy vibration screen comprises a frame and a screen, wherein the screen is adhered to the frame;

the frame comprises an inner core frame, a steel wire mesh and an injection molding material, the inner core frame is formed by welding longitudinal and transverse cold-rolled rectangular steel pipes into a frame, the steel wire mesh is welded on the cold-rolled rectangular steel pipes, and the inner core frame and the steel wire mesh are coated with the injection molding material;

the screen cloth is the wave, including surface course, middle level and bottom three-layer filter screen, bonds through the polyethylene net piece between the three-layer filter screen.

Preferably, the inner core frame is provided with longitudinal and transverse cold-rolled rectangular steel tubes, and the wall thickness of each cold-rolled rectangular steel tube is not less than 1.5 mm.

Preferably, the steel wires in the steel wire mesh sheet are criss-cross to form small lattices, and the diameter of the steel wires is not less than 2.5 mm.

Preferably, the screen mesh is made of SUS316 stainless steel or SUS304 stainless steel, and the aperture of the filter mesh on the surface layer, the middle layer and the bottom layer is gradually increased.

Preferably, the injection molding material is one of reinforced or toughened polypropylene and polyurethane.

The utility model has the advantages that:

1. the frame of the utility model adopts a high-strength injection molding frame and a properly tensioned vibrating screen to form a reliable whole, thereby greatly enhancing the flow rate which can be borne by the vibrating screen; the high-quality high-strength injection molding frame enhances the corrosion resistance and the toughness of the vibrating screen, has good vibration damping performance, and prolongs the service life of the vibrating screen. The frame of moulding plastics has the toughness of high strength for frame vibration screen cloth of moulding plastics has stronger natural vibration performance, and screening efficiency is higher.

2. The effective filtering area of the wave-shaped vibrating screen is large, the drilling fluid treatment efficiency is high, and compared with a flat plate type vibrating screen, the weight of mud borne by the wave-shaped vibrating screen in unit area is small, so that the service life of the wave-shaped vibrating screen is prolonged; and the wave-type vibration screen increases the effective filtering area, thereby increasing the mud treatment capacity of the wave-type vibration screen in unit time.

3. The screen cloth has 3 layers, and the mesh number of each layer filter screen is different, matches accurately rationally and makes the screening effect more meticulous.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic sectional structure diagram of the present invention.

Fig. 3 is a schematic perspective view of the present invention.

Fig. 4 is an enlarged schematic view of a portion a of fig. 3.

Fig. 5 is a schematic rear view of the present invention.

In the figure: 1-a frame; 2-screening a screen; 11-steel wire mesh sheets; 12-a core frame; 13-cold rolling a rectangular steel pipe; 3-injection molding material; 21-surface layer; 22-middle layer; 23-bottom layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

Referring to fig. 1 to 5, an undulating vibratory screen includes a frame 1 and a screen 2, wherein the screen 2 is bonded to the frame 1 at a high temperature; the frame 1 comprises a steel wire mesh 11, an inner core frame 12 and an injection molding material 3, wherein the inner core frame 12 is formed by welding longitudinal and transverse cold-rolled rectangular steel pipes into a frame, the steel wire mesh 11 is welded on the cold-rolled rectangular steel pipes, and steel wires in the steel wire mesh are criss-cross to form small grids. The inner core frame 12 and the steel wire mesh sheet 11 are coated with a layer of injection molding material 3; the inner core frame 12 is provided with longitudinal and transverse cold-rolled rectangular steel pipes 13, and the wall thickness of each cold-rolled rectangular steel pipe is not less than 1.5 mm; the front and rear steel wire sheets are welded on the cold-rolled rectangular steel pipe, so that a plurality of limiting frames are formed on the frame; the screen 2 is wave-shaped and comprises three layers of filter screens, namely a surface layer 21, a middle layer 22 and a bottom layer 23, wherein the three layers of filter screens are bonded through polyethylene mesh sheets.

In the above embodiment, the inner core frame is made of cold-rolled rectangular steel pipes, and the wall thickness of each cold-rolled rectangular steel pipe is not less than 1.5mm, so that the bearing capacity of the vibrating screen is improved, and the service life of the vibrating screen is prolonged. The inner core frame and the steel wire mesh sheets are coated with a layer of injection molding material at high temperature and high pressure, so that the corrosion resistance and the toughness of the vibrating screen are enhanced, the vibrating screen has good vibration damping performance, and the service life of the vibrating screen is prolonged. The screen is wavy, so that the effective filtering area of the wavy vibration screen is increased, and the drilling fluid treatment capacity efficiency is high; in addition, compared with a flat plate type vibrating screen, the wavy vibrating screen has the advantages that the weight of slurry borne by a unit area is small, so that the service life of the wavy vibrating screen is prolonged; and the wave-type vibration screen increases the effective filtering area, thereby increasing the mud treatment capacity of the wave-type vibration screen in unit time.

Further, the diameter of the steel wires in the steel wire mesh sheet 11 is not less than 2.5mm, so that the bearing capacity of the wave-shaped vibration screen is improved.

Furthermore, the material of the screen 2 is SUS316 stainless steel or SUS304 stainless steel, and the aperture of the screen is gradually increased from small to large in the surface layer 21, the middle layer 22 and the bottom layer 23. Preferably, the bottom layer 23 adopts a 20-mesh filter screen or a filter screen with the required mesh number of slurry parameters to play a role in protection, the surface layer 21 and the middle layer 22 filter screens select high-quality stainless steel filter screens according to the required filter precision, so that the required filter precision is adjusted, and polyethylene mesh sheets with the width of 3mm are adopted for bonding between the filter screens.

Further, the injection molding material 3 is one of reinforced or toughened polypropylene and polyurethane, so that the corrosion resistance and toughness of the vibrating screen are enhanced, and the service life of the vibrating screen is prolonged.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. The wavy vibrating screen is characterized by comprising a frame and a screen, wherein the screen is adhered to the frame;

2. The undulating vibratory screen of claim 1, wherein said core frame is framed by longitudinal and transverse cold rolled rectangular steel tubes having a wall thickness of no less than 1.5 mm.

3. The undulating vibratory screen of claim 1, wherein the wires in said steel mesh are criss-cross to form cells, said wires having a diameter of not less than 2.5 mm.

4. The undulating vibratory screen of any one of claims 1-3 wherein said screen material is SUS316 stainless steel or SUS304 stainless steel, and wherein the mesh openings of the face, middle and bottom layers of screen mesh are gradually increased in size.

5. The undulating vibratory screen of claim 4 wherein said injection molding material is one of reinforced or toughened polypropylene, polyurethane.