CN201406193Y

CN201406193Y - Spiral sand conveying device

Info

Publication number: CN201406193Y
Application number: CN2009200860074U
Authority: CN
Inventors: 李莉莉; 吴汉川; 彭平生; 孙晓明
Original assignee: SJ Petroleum Machinery Co
Current assignee: Sinopec Oilfield Equipment Corp; Sinopec Siji Petroleum Machinery Co Ltd
Priority date: 2009-05-20
Filing date: 2009-05-20
Publication date: 2010-02-17
Anticipated expiration: 2019-05-20

Abstract

The utility model relates to oil well fracturing equipment, in particular to a sand conveying device arranged on a sand mixing vehicle. The device comprises two cylindrical spiral sand conveyors and sand hoppers that are respectively connected with the spiral sand conveyors. The spiral sand conveying device is characterized in that two side surfaces of each sand hopper are parallel to each other,one surface connected with the spiral sand conveyor is vertical to two sides, while one surface corresponding to the spiral sand conveyor is an arc-shaped structure. As the shape of the sand hopper ischanged, under a situation that the sand conveying vehicle and a sand storage tank are adopted to add sands, the leakage phenomenon of the sand is eliminated, disadvantageous effects to environment are lightened, and the spiral sand conveying device is beneficial to ensuring the requirement of sand conveying amount of the fracturing operation.

Description

A kind of spiral sediment transport device

Technical field:

The utility model relates to wellfracturing operation sand blender, especially is configured in the sediment transport device on the blending equipment.

Background technology:

The sediment transport device of blending equipment is made of the screw conveyer and the sand hopper of two cylindricalitys respectively, sand hopper is that a cross section is asymmetric trapezoidal, structure with the narrow corresponding face width in screw conveyer connection place, permanent seat one end that screw conveyer joins by being nested with it is towards mixing can, an end that links with sand hopper is towards ground, be located at the afterbody of car obliquely, on the cylindrical body of screw conveyer, be provided with telescopic oil cylinder that links with permanent seat and the axial guidance that is limited to permanent seat.During construction, oil cylinder makes the spiral conveying device move down into ground along guide rail; When blending equipment travels, sediment transport device receipts are carried at the tailstock by oil cylinder.In the time of in working order, will construct in the sand hopper of the sand input sediment transport device that uses by sanding vehicle or sand tank.When adding sand with sanding vehicle, with two sand hoppers of sediment transport device separately, owing to limited by the operation place, the dead aft that sanding vehicle can not be parked in sand hopper accurately adds the sand operation.Because the sand hopper cross section is asymmetric trapezium structure, has a large amount of leakages when adding sand; And when adding sand with sand tank, two sand hoppers close up, and the sand export correspondence position of sand tank has a large amount of leakages in the centre of two sand hoppers.Caused a large amount of wastes of operation so on the one hand, influenced the requirement of frac job, simultaneously environment has been caused pollution, increased the cleaning work amount amount of sand with material.

Summary of the invention:

The purpose of this utility model is, under the situation that does not change blending equipment length, the existing irrational sand hopper structure of sediment transport device improved, and a kind of sediment transport device of new shape is provided, and satisfies the construction requirement of frac job.

The utility model is to realize above-mentioned purpose in the following way: the sediment transport device is made of the screw conveyer of two cylindricalitys and the sand hopper that links with it respectively, it is characterized in that: the two sides of sand hopper are parallel to each other, vertical mutually with both sides with the one side that screw conveyer links, one side cooresponding with it is the structure of arc.When blending equipment travels, sediment transport device receipts are carried at the tailstock by oil cylinder.When adding the sand construction with sand tank, oil cylinder makes the spiral conveying device move down into ground along guide rail, and sand hopper closes up, and imports in the sand hopper of sediment transport device from the sand of sand tank output; When adding sand with sanding vehicle, with two sand hoppers of sediment transport device separately, sanding vehicle can add the sand operation in the dead aft of sand hopper easily.

The beneficial effects of the utility model are:

1. because the sand hopper two sides are parallel, one end is the structure of arc, two sand hoppers of sand deliverer are separated, when sanding vehicle stand not during dead aft at sand hopper, the sand hopper of arc has increased the area of contact that adds sand mouth and sand hopper, do not exist and add the sand dead angle, the leakage phenomenon when actv. has been avoided adding sand.

2. because the sand hopper two sides are parallel, and an end is the structure of arc, when adopting sand tank to add sand, sand hopper closes up use, sand tank add the midway location of sand mouth at sand hopper, close up use and the sand hopper medial surface is parallel, both area of contact have been increased equally, the leakage phenomenon when actv. has been avoided adding sand.

3. because the elimination of leakage phenomenon, except alleviating influence to environment, required sediment transport amount requirement when also having guaranteed frac job.

Description of drawings:

Fig. 1 spiral sediment transport device birds-eye view;

The specific embodiment:

The sediment transport device is made of the screw conveyer 1 of two cylindricalitys and the sand hopper 2 that links with it respectively, lateral surface 3, the medial surface 4 of sand hopper 2 are parallel to each other, the one side 6 that links with screw conveyer and lateral surface 3, medial surface 4 are vertical mutually, its cooresponding 5 links to each other with lateral surface 3 and medial surface 4 respectively, face 5 is straight vertical with medial surface 4, and the part that links to each other with lateral surface 3 is the structure of arc.When blending equipment travels, sediment transport device receipts are carried at the tailstock by oil cylinder.When adding the sand construction with sand tank, oil cylinder makes the spiral conveying device move down into ground along guide rail, and sand hopper 2 closes up, and imports in the sand hopper 2 of sediment transport device from the sand of sand tank output; When adding sand with sanding vehicle, with two sand hoppers of sediment transport device separately, sanding vehicle can add the sand operation in the dead aft of sand hopper easily.

Claims

1, a kind of spiral sediment transport device, the sand hopper that comprises the screw conveyer of two cylindricalitys and link with it constitutes, it is characterized in that: the two sides of two sand hoppers are parallel to each other, and vertical mutually with both sides with the one side that screw conveyer links, one side cooresponding with it is the structure of arc.