CN203140290U

CN203140290U - Linear vibrating screen

Info

Publication number: CN203140290U
Application number: CN 201320110323
Authority: CN
Inventors: 王宏
Original assignee: Individual
Current assignee: Daqing Ruiside Petroleum Machinery Manufacturing Co ltd
Priority date: 2013-03-12
Filing date: 2013-03-12
Publication date: 2013-08-21
Anticipated expiration: 2023-03-12

Abstract

The utility model discloses a linear vibrating screen which comprises a base, a screen box, a vibrating motor and a supporting spring. The screen box is installed on the base through the supporting spring. Screen bodies are arranged at the bottom of the screen box. The number of the screen bodies is multiple and the heads and the tails of the screen bodies are overlapped so that a ladder shape is formed. The vibrating motor is fixedly installed on a side board of the screen box. According to the linear vibrating screen, the heads and the tails of the screen bodies are overlapped so that the ladder shape is formed, slurry can flow evenly on the screen bodies, impact and damage to the screen bodies by the slurry in a large area when an angle of elevation of the screen box is over large are avoided, the service life of the screen bodies is prolonged, the horseshoe effect is avoided, and the area of the screen bodies is fully used. The screen bodies are arranged in five steps, so that a slurry disposal area is large, screen body tension is even, slurry disposal efficiency is high, service life is long, and the service life of a following slurry disposal device is reliably guaranteed. An arc-shaped baffle is arranged below the vibrating motor and similar to the vibrating motor in shape, so that the problem that the vibrating motor is corroded by the slurry is solved and the service life of the vibrating motor is prolonged.

Description

Linear vibrating screen

Technical field

The utility model relates to the screening treatment facility, particularly relates to a kind of linear vibrating screen.

Background technology

In drilling process, the mud (comprising landwaste) that the shaft bottom produces takes ground to by drilling fluid, mud in time must be disposed from drilling fluid, and linear vibrating screen is the equipment of the removing mud of drilling equipment indispensability; But there are the following problems for existing linear vibrating screen: 1. vibratory sieve is subjected to the restriction of environment for use, the volume of vibratory sieve can't be made very greatly, and how under the situation of constancy of volume, the processing area that improves vibratory sieve is the problem that always perplexs people; 2. the motor of existing vibratory sieve use is installed on the screen box by motor base, increases weight of equipment, reduces vibration amplitude, influence the treatment effeciency of linear vibrating screen, and the motor set bolt ruptures easily; 3. vibrating motor below does not have baffle plate, and mud can cause corrosion to motor, has a strong impact on motor service life; For this reason, the inventor is through concentrating on studies, invented a kind of linear vibrating screen, the vibrating motor that adopts is the flange form motor, no motor base, be installed in by flange on the side plate of screen box, the motor set bolt is easy fracture not, and the screen box total quality reduces, treatment effeciency is higher, a plurality of screen clothes are stacked to stepped from beginning to end, guarantee that mud flows evenly at screen cloth, avoids when the screen box elevation angle is excessive, large-area mud is to the impact failure of screen cloth, prolonged screen cloth service life, avoided " water chestnut " effect, screen area is fully utilized; The screen cloth that five rank arrange, the mud conditioning area is big, the screen cloth even tension, mud conditioning efficient height, long service life is for having made reliable assurance the service life of follow-up mud conditioning equipment, the vibrating motor below is provided with curved baffle, with the vibrating motor appearance similar, avoid mud to the corrosion of vibrating motor, increase the service life.

The utility model content

The purpose of this utility model provides a kind of linear vibrating screen, in order to solve the defective of above-mentioned prior art.

In order to achieve the above object, technical scheme provided by the utility model is: a kind of linear vibrating screen, it comprises base, screen box, vibrating motor and support spring, described screen box is installed on the base by support spring, the screen box bottom device has screen cloth, described screen cloth is set to a plurality of, and it is stacked to steppedly from beginning to end, and described vibrating motor is packed on the side plate of screen box.

Further, described screen box one end is fixed with mud ditch.

Further, device has baffle plate below the described vibrating motor.

Further, described vibrating motor is the flange form motor.

Further, described screen cloth is set to five rank.

Further, described vibrating motor is set to two.

Further, described two vibrating motors are the synchronous backward rotation.

Further, described baffle plate is arc.

Adopt technique scheme, technique effect of the present utility model has: the utility model linear vibrating screen, the vibrating motor that adopts is the flange form motor, no motor base, be installed in by flange on the side plate of screen box, the motor set bolt is easy fracture not, owing to there is not motor base, the total quality of screen box is reduced, it is big that amplitude becomes, and treatment effeciency is higher, and a plurality of screen clothes are stacked to stepped from beginning to end, guarantee that mud flows evenly at screen cloth, avoid when the screen box elevation angle is excessive, large-area mud is to the impact failure of screen cloth, prolonged screen cloth service life, avoided " water chestnut " effect, the area of screen cloth is fully utilized; The screen cloth that five rank arrange, the mud conditioning area is big, the screen cloth even tension, mud conditioning efficient height, long service life, for having made reliable assurance the service life of follow-up mud conditioning equipment, the screen box loam cake is equipped with cover plate, solved the problem that mud outwards splashes in vibration processes, the vibrating motor below is provided with baffle plate, and baffle plate is arc, with the appearance similar of vibrating motor, solve the problem of mud-corrosion vibrating motor, prolonged vibrating motor service life.

Description of drawings

Fig. 1 is the structural representation of the utility model linear vibrating screen;

Fig. 2 is the cutaway view of the utility model screen box;

Wherein: 1, base, 2, screen box, 3, vibrating motor, 4, support spring, 5, screen cloth, 6, mud ditch, 7, baffle plate, 8, voussoir, 9, screw lifting mechanism.

The specific embodiment

Below in conjunction with the description of drawings specific embodiment of the present utility model.

As depicted in figs. 1 and 2, the structural representation of the utility model linear vibrating screen, it comprises base 1, screen box 2, vibrating motor 3 and support spring 4, screen box 2 is installed on the base 1 by support spring 4, screen box 2 adopts the manufacturing of high-quality steel, and is rational in infrastructure, makes its intensity height, in light weight, treatment effeciency is higher, and screen box 2 bottom devices have screen cloth 5, and screen cloth 5 is set to a plurality of, and it is stacked to stepped from beginning to end, screen cloth 5 uses voussoir 8 to compress, and voussoir 8 is L shaped, and it is very convenient to change screen cloth 5, hardware under the screen cloth 5 all adopts the high-quality stainless steel, screen box 2 carries out surface sand-blasting to be handled, and reaches the Sa2.5 level, and PASS is strong, reduced the corrosion of mud to screen box 2, prolong complete machine service life, the adhesive tape integral sealing is adopted in the bottom of screen cloth 5, makes on the screen cloth 5, following two sides thoroughly isolates, reach all mud and all handle through linear vibrating screen, vibrating motor 3 is packed on the side plate of screen box 2; Screen box 2 one ends are fixed with mud ditch 6, and mud ditch 6 adopts the overflow mode to enter screen box 2; Screen box 2 loam cakes are equipped with cover plate, prevent that mud is splashed to screen box 2 outsides; Vibrating motor 3 below devices have baffle plate 7, and baffle plate 7 is arc; Vibrating motor 3 is the flange form motor; Screen cloth 5 is set to five rank; Vibrating motor 3 is set to two, and two vibrating motors 3 are the synchronous backward rotation; Screw lifting mechanism 9 can be installed in screen box 2 front end both sides, when mud viscosity big, discharge capacity is big, when occurring running mud, by screw lifting mechanism 9, regulate the angle of inclination of screen box 2 heads, when mud covers compass screen surface less than 75%, by screw lifting mechanism 9, reduce the elevation angle of screen box 2, when mud viscosity is relatively trotted mud, illustrating has a lot of critical particles (particle very approaching with the screen cloth aperture size) has been stuck in to cause in the sieve screen apertures and sticks with paste the screen cloth phenomenon in the mud, can avoid critical particle by improving or reduce sieve number, the angle of inclination of screen box 2 is set to-3 °-3 °, during linear vibrating screen work, the vibrating motor 3 of two synchronous backward rotations begins rotation, produce the centrifugal force that equates, on each instantaneous position, centrifugal force is along the additon of forces of direction of vibration, and cancel each other with the component of vibration vertical direction, therefore, only form exciting force at direction of vibration, make screen box 2 moving linearlies, should select the angle of inclination of order number and the screen box 2 of screen cloth 5 according to the 75%-80% of the overlay length of mud on screen cloth 5, to avoid screen cloth 5 accumulation landwaste and the mud cakes in the mud exit of linear vibrating screen.

The vibrating motor 3 that the utility model linear vibrating screen adopts is the flange form motor, no motor base, flange by flange form motor 3 is fixed on the side plate of screen box 2, the motor set bolt is easy fracture not, owing to there is not motor base, the total quality of screen box 2 is reduced, treatment effeciency is higher, screen cloth 5 is the stacked hierarchic structures of head and the tail, guarantees that mud flows evenly at screen cloth 5, avoids when screen box 2 elevations angle are excessive, large-area mud is to the impact failure of screen cloth 5, prolonged 5 service lifes of screen cloth, avoided " water chestnut " effect, the area of screen cloth 5 is fully utilized; The screen cloth 5 that five rank arrange, the mud conditioning area is big, screen cloth 5 even tensions, mud conditioning efficient height, long service life, for having made reliable assurance the service life of follow-up mud conditioning equipment, screen box 2 loam cakes are equipped with cover plate, solved the problem that mud outwards splashes in vibration processes, vibrating motor 3 belows are provided with baffle plate 7, and baffle plate 7 is arc, with the vibrating motor appearance similar, solve the problem of mud-corrosion vibrating motor 3, prolonged 3 service lifes of vibrating motor.

It should be noted that at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.

Claims

1. linear vibrating screen, it is characterized in that: it comprises base (1), screen box (2), vibrating motor (3) and support spring (4), described screen box (2) is installed on the base (1) by support spring (4), screen box (2) bottom device has screen cloth (5), described screen cloth (5) is set to a plurality of, and it is stacked to stepped from beginning to end, and described vibrating motor (3) is packed on the side plate of screen box (2).

2. linear vibrating screen according to claim 1, it is characterized in that: described screen box (2) one ends are fixed with mud ditch (6).

3. linear vibrating screen according to claim 1 is characterized in that: described vibrating motor (3) below device has baffle plate (7).

4. according to claim 1 or 3 described linear vibrating screens are arranged, it is characterized in that: described vibrating motor (3) is the flange form motor.

5. according to claim 1 described linear vibrating screen is arranged, it is characterized in that: described screen cloth (5) is set to five rank.

6. linear vibrating screen according to claim 4, it is characterized in that: described vibrating motor (3) is set to two.

7. linear vibrating screen according to claim 6 is characterized in that: described two vibrating motors (3) are the synchronous backward rotation.

8. linear vibrating screen according to claim 3, it is characterized in that: described baffle plate (7) is arc.