Novel pneumatic conveying dry powder fracturing ash tank structure

Abstract

The utility model relates to the technical field of pneumatic conveying, and provides a novel pneumatic conveying dry powder fracturing ash tank structure which comprises an ash tank body, a powder feeding pipe, a first manhole valve, a first discharging conveying opening and a second discharging conveying opening. A feeding powder trolley is connected with an ash tank body through a powder feeding pipe, then a first manhole valve and a second manhole valve are closed, a first discharging conveying opening is closed through a first valve, a second discharging conveying opening is closed through a second valve, and an exhaust pipe is opened through a third valve; powder begins to be conveyed into the field operation ash tank body until truck loading is completed, a first discharging conveying opening is opened through a first valve, a second discharging conveying opening is opened through a second valve, an exhaust pipe is closed through a third valve, and a first manhole valve and a second manhole valve are closed; in the operation process, the powder tank discharging metering device begins to convey powder to the outside of the ash tank body, and the problem that the materials are inconveniently poured into and discharged out of the ash tank body in a sealed mode is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pneumatic conveying technical field, specifically, relate to a novel pneumatic conveying dry powder fracturing ash can structure. BACKGROUND

[0002] Pneumatic conveying, also known as airflow conveying, is a specific application of fluidization technology, which utilizes the energy of airflow to convey particulate materials in a closed pipeline along the airflow direction. Pneumatic conveying devices are simple in structure and easy to operate, and can be used for horizontal, vertical or inclined conveying. In the conveying process, physical operations such as heating, cooling, drying and airflow classification of materials, or certain chemical operations can be carried out simultaneously.

[0003] However, the dry powder mixing needs to use mechanical stirring and shearing today, which can damage the thickening and viscosity of the polymer itself. In addition, hoisting operations are required during the on-site dry powder loading and unloading, and a large amount of dust is scattered during the moving process, which can cause harm to the surrounding environment. Therefore, further improvement is needed. SUMMARY

[0004] The utility model provides a novel pneumatic conveying dry powder fracturing ash can structure, which solves the problem of not being convenient for sealing and pouring materials into the ash can body and efficiently extinguishing fire in the related technology.

[0005] The technical scheme of the utility model is as follows:

[0006] A novel pneumatic conveying dry powder fracturing ash can structure, comprising an ash can body, a powder feeding pipe connected to one side of the ash can body for conveying powder from the outside of the device to the inside of the ash can body, a first manhole valve connected to the upper end of the ash can body, a second manhole valve also connected to the upper end of the ash can body, the first manhole valve and the second manhole valve having the same structure, a first discharge conveying port connected to the lower end of the ash can body for conveying materials in the ash can body to the outside, and a second discharge conveying port also connected to the lower end of the ash can body for conveying materials in the ash can body to the outside, the first discharge conveying port and the second discharge conveying port having the same structure.

[0007] Preferably, a first valve for controlling the opening and closing state of the first discharge conveying port is fixedly connected to the inner wall of the first discharge conveying port.

[0008] Preferably, a second valve for controlling the opening and closing state of the first discharge conveying port is fixedly connected to the inner wall of the second discharge conveying port.

[0009] Preferably, the other side of the ash tank body is communicated with an exhaust pipe for discharging the gas contained in the ash tank body to the outside to avoid accumulation of excessive gas in the ash tank body, an inner wall of the exhaust pipe is fixedly connected with a filtering device for filtering the gas discharged from the ash tank body to prevent the ash tank body from being blocked by the impurities in the gas, and the inner wall of the exhaust pipe is also fixedly connected with a third valve.

[0010] Preferably, the filtering device is close to the side wall of the ash tank body, and the third valve is away from the side wall of the ash tank body.

[0011] Preferably, the outer surface of the ash tank body is fixedly connected with a support rod.

[0012] Preferably, one end of the support rod is fixedly connected with a spraying pump, and the output end of the spraying pump faces the outer surface of the ash tank body.

[0013] Preferably, the inner upper wall of the ash tank body is fixedly connected with a dust-settling atomizing device, and the output end of the dust-settling atomizing device faces the center position in the ash tank body.

[0014] The working principle and beneficial effects of the ash tank body are as follows:

[0015] 1. The ash tank body is connected with the powder feeding vehicle through the powder feeding pipe, then the first manhole valve and the second manhole valve are closed, the first discharge conveying port is closed through the first valve, the second discharge conveying port is closed through the second valve, and the exhaust pipe is opened through the third valve, so that the powder is conveyed into the ash tank body until the conveying is completed, the first discharge conveying port is opened through the first valve, the second discharge conveying port is opened through the second valve, and the exhaust pipe is closed through the third valve, and the first manhole valve and the second manhole valve are closed, so that the powder tank discharging and metering device starts to convey the powder to the outside of the ash tank body, and the outside moisture or other harmful gas can be prevented from entering the inside of the ash tank body; the main mixing pry is provided with two independent powder suction pumping devices, one is used for standby during construction, the ash tank body is provided with a spraying pump, and the external open fire can be controlled to spray and cool the outside of the ash tank body; the ash tank body is stored in a sealed manner, and the inside of the ash tank body is provided with a dust-settling atomizing device, so that the inside of the ash tank body is sprayed and extinguished when the external open fire cannot be controlled, the problem that the material cannot be sealed and poured into and discharged from the ash tank body and high-efficiency fire extinguishing is solved.

[0016] 2. The ash tank body realizes online metering mixing and adding of dry powder; the key technical indexes of the fracturing fluid can meet the relevant standards (resistance reduction rate, viscosity sand carrying capacity, etc.); the polymer thickening agent can meet certain requirements to realize rapid dispersion and hydration, and the concentrated fracturing fluid can be configured; and the unconventional reservoir large-scale fracturing operation high discharge (18-24 m3 / min) and viscosity change requirements; greatly improve the efficiency and quality of the site fracturing fluid mixing operation; greatly reduce and eliminate the related management risk of environmental safety and health on site; the device size (6m*2.3*2.5m) is reasonable, the site device space is small, the site occupies small, the device is convenient to move and convenient to place on site; the fracturing fluid reservoir damage is smaller, the liquid performance can be flexibly adjusted according to the actual demand (variable viscosity, crosslinking, water quality adjustment, etc. can be flexibly adjusted); strong versatility, suitable for various complex water quality (river water, flowback fluid, production water, etc.) at the operation site; dry powder loading and unloading truck throughout the process without any leakage, without any lifting operation, all closed system operation, maximize the environmental protection demand and operation efficiency on site; greatly reduce the production packaging, transportation, lifting, site occupation of materials, etc., greatly reduce the carbon footprint. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further described in detail below in combination with the drawings and specific embodiments.

[0018] Figure 1 It is the whole structure schematic diagram of the utility model;

[0019] Figure 2 It is the A place enlarged view in the utility model Figure 1

[0020] In the drawing: 1, ash tank body; 2, powder feeding pipe; 3, first manhole valve; 4, second manhole valve; 5, first discharge conveying port; 51, first valve; 6, second discharge conveying port; 61, second valve; 7, exhaust pipe; 71, filter device; 72, third valve; 8, support rod; 81, spraying pump; 9, dust fall atomizing device. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are involved in the scope of the utility model protection.

[0022] For example, Figure 1 and Figure 2 ​As shown, the embodiment proposes a new type of pneumatic conveying dry powder for fracturing ash tank structure, including ash tank body 1, one side of ash tank body 1 is communicated with the powder feeding pipe 2, which is convenient for conveying powder from the outside of the device to the inside of the ash tank body 1, the upper end of the ash tank body 1 is communicated with the first manhole valve 3, the upper end of the ash tank body 1 is also communicated with the second manhole valve 4, the structure of the first manhole valve 3 and the second manhole valve 4 is the same, the lower end of the ash tank body 1 is communicated with the first discharge conveying port 5, which is convenient for conveying the material in the ash tank body 1 to the outside, the lower end of the ash tank body 1 is also communicated with the second discharge conveying port 6, which is convenient for conveying the material in the ash tank body 1 to the outside, the structure of the first discharge conveying port 5 and the second discharge conveying port 6 is the same.

[0023] Further, the inner wall of the first discharge conveying port 5 is fixedly connected with the first valve 51 for controlling the opening and closing state of the first discharge conveying port 5, and the inner wall of the second discharge conveying port 6 is fixedly connected with the second valve 61 for controlling the opening and closing state of the first discharge conveying port 5.

[0024] Further, the other side of the ash tank body 1 is communicated with the exhaust pipe 7 for discharging the gas contained in the ash tank body 1 to the outside to avoid the accumulation of too much gas in the ash tank body 1, the inner wall of the exhaust pipe 7 is fixedly connected with the filtering device 71 for filtering the gas discharged from the ash tank body 1 to prevent the impurities in the gas in the ash tank body 1 from being discharged together to cause blockage of the exhaust pipe 7 and affect the normal exhaust effect of the exhaust pipe 7, the inner wall of the exhaust pipe 7 is also fixedly connected with the third valve 72, the filtering device 71 is close to the side wall of the ash tank body 1, the third valve 72 is away from the side wall of the ash tank body 1, the third valve 72 is used for controlling the opening and closing state of the exhaust pipe 7.

[0025] Further, the outer surface of the ash tank body 1 is fixedly connected with the supporting rod 8, one end of the supporting rod 8 is fixedly connected with the spray pump 81, the output end of the spray pump 81 faces the outer surface of the ash tank body 1, the spray pump 81 is used for spraying and cooling the outside of the ash tank body 1 when there is an open fire outside the ash tank body 1.

[0026] Further, the inner wall of the ash tank body 1 is fixedly connected with the dust falling atomization device 9, the output end of the dust falling atomization device 9 faces the center position of the inside of the ash tank body 1, the dust falling atomization device 9 is used for spraying the inside of the ash tank body 1 through the dust falling atomization device 9 when the open fire outside the ash tank body 1 is uncontrollable.

[0027] The working principle and use instruction of the utility model are as follows: when the work of canning material is needed, the powder feeding trolley is connected with the ash can body 1 through the powder feeding pipe 2, then the first manhole valve 3 and the second manhole valve 4 are closed, the first discharge conveying port 5 is closed through the first valve 51, the second discharge conveying port 6 is closed through the second valve 61, the exhaust pipe 7 is opened through the third valve 72, and the powder starts to be conveyed into the ash can body 1 until the loading is completed;

[0028] When the on-site construction is carried out, the first discharge conveying port 5 is opened through the first valve 51, the second discharge conveying port 6 is opened through the second valve 61, the exhaust pipe 7 is closed through the third valve 72, the first manhole valve 3 and the second manhole valve 4 are closed, and the powder tank unloading metering device starts to convey the powder to the outside of the ash can body 1 during the operation process;

[0029] When the on-site construction is carried out, the first discharge conveying port 5 is opened through the first valve 51, the second discharge conveying port 6 is opened through the second valve 61, the exhaust pipe 7 is closed through the third valve 72, the first manhole valve 3 and the second manhole valve 4 are closed, and the powder tank unloading metering device starts to convey the powder to the outside of the ash can body 1 during the operation process;

[0030] And the main mixing pry adopts two sets of independent powder suction pumping devices, one standby is used during construction, the main mixing pry, namely the ash can body 1 is provided with a spray pump 81, the ash can body 1 is externally sprayed for cooling when the external open fire is controllable, the ash can body 1 is stored in a sealed manner, and the ash can body 1 is internally provided with a dust falling atomizing device 9, and the ash can body 1 is internally sprayed for fire extinguishing when the external open fire is uncontrollable;

[0031] The dry powder is on-line metered, mixed and added; the key technical indexes of the fracturing fluid can meet the relevant standards (resistance reduction rate, viscosity sand carrying capacity and the like); the polymer thickening agent can meet certain requirements, so that the rapid dispersion hydration and the concentrated fracturing fluid configuration can be realized; the large-scale fracturing operation of the unconventional reservoir can be realized with the high discharge (18-24 m 3 / min) and the viscosity change requirements; the efficiency and quality of the on-site fracturing fluid preparation operation are greatly improved; the related management risks of the on-site environmental protection, safety and health are greatly reduced and eliminated; the equipment size (6 m*2.3*2.5 m) is reasonable, the on-site equipment space occupation is small, the on-site occupation is small, the equipment relocation is convenient and the on-site placement is convenient; the fracturing fluid reservoir damage is smaller, and the liquid performance can be flexibly adjusted according to the actual demand (the viscosity, crosslinking and water quality adjustment can be flexibly adjusted); the universality is strong, and various complex water qualities (river water, flowback fluid, production water and the like) in the operation site can be adapted; the dry powder loading and unloading process is completely leak-free, and there is no hoisting operation, all the operations are in a closed system, the on-site environmental protection demand and the operation efficiency are maximized; the production packaging, transportation, hoisting and on-site occupation of the on-site materials are greatly reduced, and the carbon footprint is greatly reduced;

[0032] The dry powder mixing is completely free of any mechanical stirring and shearing, and does not damage the thickening and viscosity of the polymer itself; the on-site dry powder loading and unloading adopts compressed air conveying (tank truck to tank truck), which eliminates on-site hoisting operation and dust hazards; the equipment is provided with an air-conditioned operation room and a rest room, which maintains a good working environment, supports 24-hour operation construction, and realizes multi-parameter tracking, construction data post-development analysis, equipment working condition real-time tracking and maintenance, construction parameters (displacement, pressure, dry powder concentration, dry powder inventory and consumption, emulsion equivalent concentration, liquid level, water quality parameters, etc.), equipment parameters (real-time tracking of equipment power consumption, main machine power, rotating speed, etc.), etc.

[0033] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A novel pneumatic conveying dry powder fracturing ash tank structure, comprising an ash tank body (1), characterized in that, The ash tank body (1) has a powder feed pipe (2) connected to one side, which facilitates the conveying of powder from the outside of the device to the inside of the ash tank body (1). The upper end of the ash tank body (1) is connected to a first manhole valve (3), and the upper end of the ash tank body (1) is also connected to a second manhole valve (4). The first manhole valve (3) and the second manhole valve (4) have the same structure. The lower end of the ash tank body (1) is connected to a first discharge conveying port (5), which facilitates the conveying of material inside the ash tank body (1) to the outside. The lower end of the ash tank body (1) is also connected to a second discharge conveying port (6), which facilitates the conveying of material inside the ash tank body (1) to the outside. The first discharge conveying port (5) and the second discharge conveying port (6) have the same structure.

2. The novel pneumatic conveying dry powder fracturing ash tank structure according to claim 1, characterized in that, A first valve (51) for controlling the opening and closing state of the first discharge conveying port (5) is fixedly connected to the inner wall of the first discharge conveying port (5).

3. The novel pneumatic conveying dry powder fracturing ash tank structure according to claim 1, characterized in that, A second valve (61) for controlling the opening and closing state of the first discharge port (5) is fixedly connected to the inner wall of the second discharge port (6).

4. The novel pneumatic conveying dry powder fracturing ash tank structure according to claim 1, characterized in that, The other side of the ash tank body (1) is connected to an exhaust pipe (7) for discharging the gas contained inside the ash tank body (1) to the outside to avoid excessive gas accumulation inside the ash tank body (1). The inner wall of the exhaust pipe (7) is fixedly connected to a filter device (71) for filtering the gas discharged from the ash tank body (1) to prevent impurities in the gas inside the ash tank body (1) from being discharged and causing blockage to the exhaust pipe (7) and affecting the normal exhaust effect of the exhaust pipe (7). A third valve (72) is also fixedly connected to the inner wall of the exhaust pipe (7).

5. The novel pneumatic conveying dry powder fracturing ash tank structure according to claim 4, characterized in that, The filter device (71) is close to the side wall of the ash tank body (1), and the third valve (72) is away from the side wall of the ash tank body (1).

6. The novel pneumatic conveying dry powder fracturing ash tank structure according to claim 1, characterized in that, A support rod (8) is fixedly connected to the outer surface of the ash tank body (1).

7. The novel pneumatic conveying dry powder fracturing ash tank structure according to claim 6, characterized in that, One end of the support rod (8) is fixedly connected to a spray pump (81), and the output end of the spray pump (81) faces the outer surface of the ash tank body (1).

8. The novel pneumatic conveying dry powder fracturing ash tank structure according to claim 1, characterized in that, A dust suppression atomizing device (9) is fixedly connected to the upper inner wall of the ash tank body (1), and the output end of the dust suppression atomizing device (9) faces the center of the ash tank body (1).

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