阅读说明：本技术 自动电驱螺旋输砂储砂装置 (Automatic electric-driven spiral sand conveying and storing device ) 是由 万林 李水华 韩淳 余俊勇 于 2019-09-12 设计创作，主要内容包括：本发明公开了自动电驱螺旋输砂储砂装置,包括机架(13),起重机(1)和砂斗(2),所述机架(13)左底部设置有与砂斗(2)出砂口连通的水平螺旋输送机A(3),机架(13)左顶部设置有与水平螺旋输送机A(3)连通的垂直螺旋输送机B(5),机架(13)右顶部设置有与垂直螺旋输送机B(5)连通的水平螺旋输送机B(6),机架(13)右中部设置有多个砂罐(11),多个砂罐(11)顶部进砂口与水平螺旋输送机B(6)的相对应出砂口连通,机架(13)右底部设置有出砂螺旋输送机(9),砂罐(11)底部出砂口与出砂螺旋输送机(9)连通。本发明能够密闭式连续输砂、储砂、精确出砂、占地面积小的特点。(The invention discloses an automatic electric-drive spiral sand conveying and storing device which comprises a rack (13), a crane (1) and a sand hopper (2), wherein a horizontal spiral conveyor A (3) communicated with a sand outlet of the sand hopper (2) is arranged at the left bottom of the rack (13), a vertical spiral conveyor B (5) communicated with the horizontal spiral conveyor A (3) is arranged at the left top of the rack (13), a horizontal spiral conveyor B (6) communicated with the vertical spiral conveyor B (5) is arranged at the right top of the rack (13), a plurality of sand tanks (11) are arranged at the right middle part of the rack (13), sand inlets at the tops of the sand tanks (11) are communicated with corresponding sand outlets of the horizontal spiral conveyor B (6), a sand outlet spiral conveyor (9) is arranged at the right bottom of the rack (13), and sand outlets at the bottoms of the sand tanks (11) are communicated with the sand outlet spiral conveyor (9). The invention has the characteristics of closed continuous sand conveying and storing, accurate sand discharging and small occupied area.)

1. Automatic electricity drives spiral sand conveying and stores up sand device, including frame (13), hoist (1) and sand hopper (2), its characterized in that: frame (13) left side bottom is provided with horizontal screw conveyer A (3) with sand hopper (2) sand outlet intercommunication, the right side of horizontal screw conveyer A (3), frame (13) left side top is provided with vertical screw conveyer B (5) with horizontal screw conveyer A (3) intercommunication, the right side of vertical screw conveyer B (5), frame (13) right side top are provided with horizontal screw conveyer B (6) with vertical screw conveyer B (5) intercommunication, and frame (13) right side middle part is provided with a plurality of sand jars (11), and a plurality of sand jars (11) top advances sand outlet and horizontal screw conveyer B (6)'s corresponding sand outlet intercommunication, and frame (13) right side bottom is provided with sand screw conveyer (9), and sand jar (11) bottom sand outlet and sand screw conveyer (9) intercommunication.

2. The automatic electric-driven spiral sand conveying and storing device according to claim 1, wherein: the sand-discharging machine is characterized in that a PLC (programmable logic controller) (12) is further arranged on the rack (13), and the PLC (12) is respectively electrically connected with the crane (1), the horizontal screw conveyor A (3), the vertical screw conveyor B (5), the horizontal screw conveyor B (6) and the sand-discharging screw conveyor (9).

3. The automatic electric-driven spiral sand conveying and storing device according to claim 2, wherein: the left middle part of the rack (13) is provided with a vertical screw conveyor A (4) which is respectively communicated with a horizontal screw conveyor A (3) and a vertical screw conveyor B (5), and the vertical screw conveyor A (4) is electrically connected with a PLC (programmable logic controller) (12).

4. The automatic electric-driven spiral sand conveying and storing device according to claim 2, wherein: sand inlet valves (8) are arranged at sand inlet positions at the tops of the sand tanks (11), and the sand inlet valves (8) are electrically connected with a PLC (programmable logic controller) (12).

5. The automatic electric-driven spiral sand conveying and storing device according to claim 2, wherein: a sand outlet valve (10) is arranged at a sand outlet at the bottom of the sand tanks (11), and the sand outlet valve (10) is electrically connected with the PLC (12).

6. The automatic electric-driven spiral sand conveying and storing device according to claim 2, wherein: in the sand tank (11), the top is provided with an ultrasonic sensor (14) for detecting the sand storage amount.

7. The automatic electric-driven spiral sand conveying and storing device according to claim 1, wherein: and a rain shed (7) for shielding rain for the crane (1) and the sand hopper (2) is fixedly connected to the frame (13).

8. The automatic electric-driven spiral sand conveying and storing device according to claim 1, wherein: the crane (1) is a combined suspension crane.

Technical Field

The invention relates to the field of shale gas fracturing construction equipment, in particular to an automatic electric-driven spiral sand conveying and storing device.

Background

In unconventional oil and gas exploration operation, due to special geological conditions, most oil and gas reservoirs have extremely low porosity and permeability, and industrial oil and gas flow can be obtained only by fracturing the reservoirs. The fracturing equipment is necessary for implementing a fracturing process on a reservoir and consists of a fracturing pump, a sand mixing pry, a high-pressure manifold, an instrument pry, auxiliary equipment and the like. During construction operation, the sand mixing pry is required to be supplied with sand through the sand tank, the propping agent is mixed with fracturing fluid in the sand mixing pry mixing tank and then supplied to the fracturing pump, and the sand-carrying fracturing fluid is injected into a wellhead through the high-pressure manifold system after being subjected to high pressure through a fracturing plunger pump on the fracturing pump.

Along with the continuous development of the fracturing process of unconventional oil and gas development, the fracturing operation scale is larger and larger, the fracturing propping agent amount required in the fracturing construction process is larger and larger, and the sand adding amount of a single section generally reaches nearly eighty directions.

At present, the sand conveying and storing process used by overseas unconventional oil and gas development mainly adopts wind conveying or bucket lifting type sand conveying, a sand storing device has large conveying size and cannot meet the actual condition of shale gas exploitation in China, the mode of conveying sand from a factory to a well site at the front end is different from the domestic conveying mode, the sand conveying mode is poor in use compatibility and difficult to use by referring to the domestic use, the sand storing device used by domestic unconventional oil and gas development mainly adopts a stacked sand tank, the widely adopted sand conveying mode is that sand bags in a transport vehicle are directly lifted to the top of a vertical sand tank through a crane, and then sand adding operation is carried out, the mode has the following problems that 1 sand adding operation labor cost is high, three operators are needed during operation, the three operators work cooperatively, the sand unloading port of 1 operator is needed to operate a sand tank, the sand unloading port is opened and closed, the operators of a sand mixing sledge are needed to effectively know the working state of the sand unloading port in real time, 1 ~ 2 operators are needed to operate the sand unloading port, the sand unloading port is opened and closed, the sand unloading port is easy to communicate with the sand skid operators, the high safety operation efficiency of sand crushing operation, the sand lifting operation is not consistent with the high safety operation, the safety operation of the sand, the sand lifting operation of the sand tank, the sand unloading operation of the sand tank, the sand unloading port is not consistent with the safety of the sand handling safety of the sand lifting operation of the sand tank, the sand mixing sledge operation, the sand unloading port, the sand tank, the safety of the sand tank, the sand unloading port is not consistent with the safety of the sand unloading port, the safety of the sand tank, the.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides an automatic electric-drive spiral sand conveying and storing device which can realize closed continuous sand conveying and storing, accurate sand discharging and small floor area.

The purpose of the invention is realized by the following technical scheme:

automatic electricity drive spiral sand conveying stores up sand device, including frame, hoist and sand hopper, frame (13) left side bottom is provided with the horizontal screw conveyer A who goes out sand mouth intercommunication with the sand hopper, horizontal screw conveyer A's right side, frame left side top are provided with the vertical screw conveyer B with horizontal screw conveyer A intercommunication, vertical screw conveyer B's right side, frame right side top are provided with the horizontal screw conveyer B who communicates with vertical screw conveyer B, and frame right side middle part is provided with a plurality of sand jars, and a plurality of sand jar tops advance sand mouth and horizontal screw conveyer B's corresponding sand mouth intercommunication, and frame right side bottom is provided with sand out screw conveyer, sand jar bottom sand mouth and sand out screw conveyer intercommunication.

Further, a PLC controller is further arranged on the rack and is respectively electrically connected with the crane, the horizontal screw conveyor A, the vertical screw conveyor B, the horizontal screw conveyor B and the sand discharging screw conveyor.

Further, the middle part of the left side of the rack is provided with a vertical screw conveyer A which is respectively communicated with the horizontal screw conveyer A and the vertical screw conveyer B, and the vertical screw conveyer A is electrically connected with the PLC.

Furthermore, sand inlet valves are arranged at sand inlet openings at the tops of the sand tanks and electrically connected with the PLC.

Furthermore, a sand outlet valve is arranged at a sand outlet at the bottom of the sand tanks and is electrically connected with the PLC.

Further, in the sand jar, the top is provided with ultrasonic sensor and is used for detecting the sand storage volume.

Furthermore, a rain shed used for shielding rain for the crane and the sand hopper is fixedly connected to the frame.

Further, the crane is a combined type suspension crane.

The invention has the following advantages:

1. according to the invention, the horizontal screw conveyor A is arranged, so that the raw material in the hopper has an initial speed in the horizontal direction when entering, the propping agent can be dispersed in the process that the propping agent flows along the slide way of the screw conveyor, the problem of caking in the propping agent is further avoided, meanwhile, the raw material can be kept in a fast flowing state and is dispersedly fed into the sand tank, and the conveying efficiency is improved;

2. according to the characteristics of the unconventional oil gas development fracturing process, the automatic control technology is utilized, overhead operators are liberated, the risk of overhead operation is avoided, and safe, efficient and low-cost fracturing sand conveying operation can be realized;

3. according to the invention, from the perspective of environmental protection and occupational health, pollution and dust emission of a propping agent are avoided by carrying out closed management on a sand conveying system, a sand storage system and a sand discharging system of the equipment, so that the service life of subsequent fracturing process equipment such as a fracturing pump and a sand mixing skid in subsequent procedures can be prolonged;

4. according to the invention, vertical sand conveying is innovatively used, the number of vertical screw conveyors is increased or decreased according to the conveying height, different types of sand can be conveyed to a specified position, and seamless connection with sand storage equipment is realized.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the sand tank;

in the figure: 1-crane, 2-sand hopper, 3-horizontal screw conveyor A, 4-vertical screw conveyor A, 5-vertical screw conveyor B, 6-horizontal screw conveyor B, 7-canopy, 8-sand inlet valve, 9-sand outlet screw conveyor, 10-sand outlet valve, 11-sand tank, 12-PLC controller, 13-frame and 14-ultrasonic sensor.

Detailed Description

The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following.

As shown in fig. 1-2, the automatic electric-driven spiral sand conveying and storing device comprises a frame 13, a crane 1 and a sand hopper 2, wherein the crane 1 is preferably a combined suspension crane; the left bottom of frame 13 is provided with horizontal screw conveyer A3 with sand hopper 2 sand outlet intercommunication, horizontal screw conveyer A3's right side, frame 13 left side top is provided with vertical screw conveyer B5 with horizontal screw conveyer A3 intercommunication, vertical screw conveyer B5's right side, frame 13 right side top is provided with horizontal screw conveyer B6 with vertical screw conveyer B5 intercommunication, frame 13 right side middle part is provided with four sand tanks 11, four sand tank 11 tops advance sand mouth and horizontal screw conveyer B6's corresponding sand outlet intercommunication, frame 13 right side bottom is provided with sand outlet screw conveyer 9, sand tank 11 bottom sand outlet and sand outlet screw conveyer 9 intercommunication, sand outlet screw conveyer 9's quantity also can be according to the sand outlet demand setting, in this embodiment, sand outlet screw conveyer 9's quantity is two, communicates with two sand tanks 11 respectively.

The sand-discharging screw conveyor 9 is preferably a horizontal screw conveying mechanism, and a sand-discharging port of the sand-discharging screw conveyor 9 can be inclined upward by a certain angle for receiving sand, and in the embodiment, the inclination angle is preferably 25 °.

The frame 13 is also provided with a PLC (programmable logic controller) 12, and the PLC 12 is respectively electrically connected with the crane 1, the horizontal screw conveyor A3, the vertical screw conveyor B5, the horizontal screw conveyor B6 and the sand discharging screw conveyor 9.

In order to achieve the sand conveying height, the left middle part of the rack 13 is provided with a vertical screw conveyor A4 which is respectively communicated with a horizontal screw conveyor A3 and a vertical screw conveyor B5, and the vertical screw conveyor A4 is electrically connected with the PLC 12.

And sand inlet valves 8 are arranged at sand inlet openings at the tops of the four sand tanks 11, and the sand inlet valves 8 are electrically connected with a PLC 12.

Sand outlet openings at the bottoms of the four sand tanks 11 are provided with sand outlet valves 10, and the sand outlet valves 10 are electrically connected with a PLC 12.

In the sand tank 11, the top is provided with an ultrasonic sensor 14 for detecting the sand storage amount.

In order to adapt to rainy weather, a rain shed 7 for shielding rain for the crane 1 and the sand hopper 2 is fixedly connected to the frame 13.

The working process of the invention is as follows: the sand that hoist 1 will transport the sand car and transport is hung into in sand hopper 2, the sand in sand hopper 2 passes through horizontal screw conveyer A3, pass through vertical screw conveyer A4 in proper order, vertical screw conveyer B5, then reach horizontal screw conveyer B6, can open different sand valve 8 that advance through PLC controller control as required, carry the sand to store in advancing different sand jars 11, but the storage capacity in the ultrasonic sensor 14 real-time supervision sand jar 11 that sets up through sand jar 11, when needs go out the sand, according to the sand demand, open different sand valve 10 through the PLC controller, go out the sand through sand screw conveyer 9.