CN201396086Y

CN201396086Y - Plate-type wavy screen mesh

Info

Publication number: CN201396086Y
Application number: CN2009200180634U
Authority: CN
Inventors: 董怀荣; 李琴; 安庆宝; 祝远征; 任福兴
Original assignee: Drilling Technology Research Institute of Sinopec Shengli Petroleum Administration Bureau
Current assignee: Sinopec Oilfield Service Corp; Drilling Technology Research Institute of Sinopec Shengli Petroleum Engineering Corp
Priority date: 2009-01-19
Filing date: 2009-01-19
Publication date: 2010-02-03
Anticipated expiration: 2019-01-19

Abstract

The utility mode relates to a plate-type wavy screen mesh, comprising screen mesh cloth, a screen plate and a screen mesh frame. The screen mesh cloth is formed by two or three layers of steel meshesof different screen numbers and is made into a wave shape. The screen plate is a steel sheet on which a plurality of through holes are arranged for sticking and supporting the screen mesh cloth. The screen mesh frame is formed by welding square or rectangular hollow section for the multipoint supporting action of the screen plate and the screen mesh. The advantage is that the utility model has thesame service life and purifying effect as a plate-type laminated sticking screen mesh, moreover, compared with the plate-type laminated sticking screen mesh and other plane-type screen meshes, the processing capacity of the drilling fluid of the utility model on the vibration screen of the same specification is improved by about 30 percent to 40 percent due to the wavy shape. The utility model aims to provide the screen mesh with credible work, high processing capacity and long service life for the vibration screen of the drilling fluid.

Description

A kind of board-like wave-shaped screen

Technical field

The utility model relates to a kind of drilling fluid vibrating sieve screen cloth that is applicable to.

Background technology

Drilling fluid vibrating sieve be can the full flow treated drilling fluid in the solid controlling system key equipment, mainly be to remove landwaste and other harmful solid phase particles in the drilling fluid by screen cloth; Screen cloth is the consumable accessory of vibrosieve, and its quality, reliability and application life are the keys that can whole vibrosieve continuous operation.What screen life-span was short has 3～5 days, and long have a two or three months.In oilfield drilling, in case vibrating screen mesh damages, just must stop brill, change, otherwise major accident such as shaft bottom bit freezing will take place.

By the screen cloth study and cognition is arrived: improving screen life-span and drill fluid purification precision, is cost to reduce vibrosieve to the drilling fluid treating capacity.Be engaged in the scientific research personnel of oil field drilling fluids vibrosieve aspect research in the past,, take on the one hand that area is big, the higher screen cloth of order number in order to solve vibrosieve to the treating capacity of drilling fluid with purify contradiction between precision and the screen life-span; Improve the power performance of vibrosieve on the other hand, such as taking the vibrator that exciting force is big, excited frequency is high; Perhaps take the use in parallel of many vibrosieves.The solution of above several respects can be dealt with problems, but also uneconomical: cause the Structure of Vibrating Screen design size to increase, manufacturing cost rises; If adopt many in parallel uses, not only be subjected to the restriction of on-the-spot mounting condition, and cause the rising of cost of investment.

Summary of the invention

The utility model is for solving the above-mentioned technical problem that existing drilling fluid vibrating sieve net exists, under the situation that the Structure of Vibrating Screen size does not increase, vibrator is constant, solving vibrosieve to the treating capacity of drilling fluid and the contradiction between purification precision and the screen life-span by the form of structure of improving screen cloth, is very practical and economic solution.

The purpose of this utility model is exactly that a kind of reliable operation, treating capacity are big, the screen cloth of long service life for drilling fluid vibrating sieve provides.

Technical solution of the present utility model is: the advantage of structurally comprehensive common crochet screen cloth, plate laminated screen produces a kind of board-like wave-shaped screen.Comprise sieve cloth, sieve plate, screen bed base.It is characterized in that: sieve cloth is made up of the steel mesh of 2 layers or 3 layers different meshes, manufactures undaform; Sieve plate is a steel sheet, has a plurality of through holes on the plate, is used for bonding and support screen cloth; Screen bed base is welded by square or rectangle hollow shaped steel, is used for the multi-point support effect of sieve plate and sieve cloth.

Topmost 1 layer of sieve cloth order number is the highest for described sieve cloth, below 1 layer or 2 layers of sieve cloth order number reduce successively, and 1 layer sieve cloth is topmost play supporting role.

The utlity model has following advantage:

1, reliable operation installs, changes convenient and swift;

2, simple in structure, be convenient to processing;

3, the screen filtration area is big, long service life.

Description of drawings

Fig. 1 is a kind of board-like wave-shaped screen schematic diagram.

Fig. 2 is a kind of board-like wave-shaped screen schematic top plan view.

The 1-sieve cloth, 2-sieve plate, 3-screen bed base.

The specific embodiment

Referring to Fig. 1, the utility model comprises: sieve cloth 1, sieve plate 2, screen bed base 3.

Sieve cloth 1 generally is made up of the steel mesh of 2 layers or 3 layers different meshes, manufactures undaform.Topmost 1 layer of sieve cloth order number is the highest, below 1 layer or 2 layers of sieve cloth order number reduce successively, and 1 layer sieve cloth is topmost play supporting role.Sieve plate 2 is a steel sheet, has a plurality of through holes on the plate, is used for bonding and support screen cloth 1; Screen bed base 3 is welded by square or rectangle hollow shaped steel, mainly sieve cloth 1 and sieve plate 2 are carried out multi-point support, increase the integral rigidity of screen cloth, reduce because of 2 deformation effect screen cloth application lifes of sieve plate and sediment outflow effect, guarantee the screen box synchronous vibration of screen cloth and drilling fluid vibrating sieve, help to improve the migration and the discharge of landwaste, avoid whole screen cloth to cause coming unglued between sieve cloth 1 and the sieve plate 2, improve the application life of screen cloth with the screen box undulatory motion.

The utility model great advantage is: the use that not only has plate laminated screen Life-span and clean-up effect, and owing to manufacture wave-like, at same specification vibratory sieve Upper use is than plate laminated screen and the processing of other plane screen cloth to drilling fluid It is high by about 30～40% that amount is wanted.

Claims

1. a board-like wave-shaped screen comprises sieve cloth (1), sieve plate (2), screen bed base (3), and it is characterized in that: sieve cloth (1) is made up of the steel mesh of 2 layers or 3 layers different meshes, manufactures undaform; Sieve plate (2) is a steel sheet, has a plurality of through holes on the plate; Screen bed base (3) is welded by square or rectangle hollow shaped steel.

2. a kind of board-like wave-shaped screen according to claim 1 is characterized in that: sieve cloth (1) topmost 1 layer of sieve cloth order number is the highest, below 1 layer or 2 layers of sieve cloth order number reduce successively.