Solid-gas mixed feeding lifting system

Abstract

The utility model relates to the technical field of powder lifting, and discloses a solid-gas mixed feeding and lifting system which comprises a solid powder feeding and discharging device, an air blower, a solid powder storage device and a powder-gas conveying pipe communicated with the solid powder feeding and discharging device and the solid powder storage device. The position of the solid powder storage device is higher than that of the solid powder feeding and discharging device, an electric hoist used for hanging a powder bag is arranged on the top of the solid powder feeding and discharging device, a hopper used for receiving and temporarily storing powder is arranged below the electric hoist, and the air blower supplies air into the powder gas conveying pipe. And powder in the hopper enters the powder-gas conveying pipe, then moves upwards along with airflow flowing in the powder-gas conveying pipe and enters the solid powder storage device. According to the pneumatic conveying device, powder is blown into the solid particle storage device from the feeding device through the pipeline according to the pneumatic conveying principle, and the pneumatic conveying device has the advantages of being simple in structure and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of powder lifting, in particular to a solid-gas mixed feeding and lifting system. Background Art

[0002] In the later stages of oilfield development and exploitation of lean oilfields, chemical flooding (including polymer flooding, binary flooding, profile control, etc.) is the most important method for tapping potential and improving oil recovery. The loading, lifting and storage of polymer dry powder or alkali solid particles become important guarantee processes in the preparation of chemical agents.

[0003] There are two main traditional ways of loading and lifting. One is to install a bridge crane or electric hoist on the top of the plant, and lift the bagged polymer dry powder or alkali powder solid to the top of the storage hopper. The operator walks to the top of the storage hopper through the platform, unties the bagged rope, and allows the polymer dry powder or alkali powder to fall into the storage tank. The other is to use a screw feeder to transport the polymer dry powder or alkali powder to the storage tank.

[0004] Of the two loading and lifting methods mentioned above, the loading method using a bridge crane or electric hoist has high requirements on the building height of the factory building, and requires the design of a track for the traveling bridge crane or electric hoist. The investment cost is high, and the operation is dangerous, which may cause accidental injuries to the operator. The loading method using a spiral feeder requires high installation accuracy of the equipment, and the feeding pipe and spiral rod of the spiral feeder are flexible. This flexible spiral feeder is expensive, and the flexible spiral cavity is easily worn out during the loading process. In addition, the spiral feeder needs to be equipped with an electric hoist in the factory for lifting bagged solid particles.

[0005] Today, when chemical expulsion has become the main means of improving oil recovery, new and higher requirements are constantly being put forward for the loading, lifting and storage technology of polymer dry powder or alkali solid particles: fast loading and lifting, larger storage capacity, high safety, zero risk, etc. The existing loading and lifting methods are obviously unable to meet them, so it is necessary to propose a new loading and lifting method. Utility Model Content

[0006] In view of the problems existing in the prior art: the existing feeding and lifting methods have the disadvantages of high investment cost and high operation risk, and cannot meet the requirements of feeding, lifting and storage processes. The purpose of this utility model is to provide a solid-gas mixed feeding and lifting system, which uses the air conveying principle to blow polymer dry powder or alkali powder from the feeding device through the pipeline to the solid particle storage device, with a simple structure and low cost. In actual use, the utility model can achieve a dry powder delivery capacity of 2.5t / h and a feeding and lifting height of up to 20m.

[0007] In order to achieve the above object, the technical solution of the utility model is:

[0008] A solid-gas mixed loading and lifting system comprises a solid powder loading and unloading device and a blower, a solid powder storage device, and a powder-gas conveying pipe connecting the solid powder loading and unloading device and the solid powder storage device, wherein the solid powder storage device is located at a higher position than the solid powder loading and unloading device, an electric hoist for suspending powder bags is arranged on the top of the solid powder loading and unloading device, a hopper for receiving and temporarily storing powder is arranged below the electric hoist, the blower supplies air into the powder-gas conveying pipe, and the powder in the hopper enters the powder-gas conveying pipe and moves upward along with the airflow flowing in the powder-gas conveying pipe and enters the solid powder storage device.

[0009] The utility model is further configured as follows: a first rotary feeder is arranged below the hopper, and the powder in the hopper quantitatively enters the powder gas conveying pipe after passing through the first rotary feeder.

[0010] The utility model is further configured as follows: a first dust collector is arranged between the hopper and the suspended powder bag, and the first dust collector is used to absorb dust generated by the powder in the powder bag during its natural falling process.

[0011] The utility model is further configured such that: the volume of the solid powder storage device is greater than the volume of the hopper.

[0012] The utility model is further configured as follows: the bottom of the solid powder storage device is a conical structure, and an annular gas blowing device is installed at the bottom of the solid powder storage device to promote smooth discharge of powder in the solid powder storage device.

[0013] The utility model is further configured to include an air compressor and a drying air delivery pipe, wherein one end of the drying air delivery pipe is connected to the top of the solid powder storage device, and the other end of the drying air delivery pipe is connected to the air compressor.

[0014] The utility model is further configured to include a dryer, which is arranged on a dry air conveying pipe between the solid powder storage device and the air compressor.

[0015] The utility model is further configured as follows: a second dust collector is installed on the top of the solid powder storage device, and the second dust collector is used to absorb dust generated in the process of the powder in the powder gas conveying pipe entering the solid powder storage device.

[0016] The utility model is further configured as follows: the powder gas conveying pipe is formed by connecting multiple sections of pipelines end to end through clamps.

[0017] In summary, the beneficial effects achieved by the present invention are as follows:

[0018] (1) The solid powder loading and unloading device and the blower are located at a lower terrain, while the solid powder storage device is located at a higher terrain. The powder gas conveying pipe connects the solid powder loading and unloading device with the solid powder storage device, and the powder gas conveying pipe is connected to the blower at one end close to the solid powder loading and unloading device. When the blower is powered on, a high-speed airflow from the solid powder loading and unloading device to the solid powder storage device can be generated in the powder gas conveying pipe. The powder bag is suspended on the electric hoist on the top of the solid powder loading and unloading device, and the powder falls downward into the hopper. The powder in the hopper continuously enters the powder gas conveying pipe and gradually moves upward with the airflow in the powder gas conveying pipe and enters the solid powder storage device, thereby achieving the effect of lifting the powder at the lower terrain to the higher terrain.

[0019] (2) The first dust collector can absorb the dust generated when the powder in the powder bag falls naturally into the hopper, and the second dust collector can absorb the dust generated when the powder in the powder gas conveying pipe enters the solid powder storage device, so as to prevent the dust from spreading and polluting the working environment;

[0020] (3) The air compressor installed on the top of the solid powder storage device can pass air into the upper part of the solid powder storage device through the dry air conveying pipe, and the dryer can dry the air in the dry air conveying pipe, so that a dry air layer is formed on the upper part of the solid powder storage device. The dry air layer can provide a sealing effect for the solid powder storage device, effectively isolate the wet air, and prevent the powder in the solid powder storage device from deliquescence;

[0021] (4) The powder gas conveying pipe is made up of multiple sections of pipes connected end to end by clamps, with a simple structure, flexible installation and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the specification will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 This is a schematic diagram of the connection structure of the solid-gas mixed feeding and lifting system in the utility model;

[0024] Figure 2 This is a schematic diagram of the equipment connection structure at a low-lying location in the solid-gas mixed feeding and lifting system of the utility model;

[0025] Figure 3 This is a schematic diagram of the equipment connection structure at a high terrain in the solid-gas mixed feeding and lifting system of the utility model.

[0026] In the figure: 1. solid powder loading and unloading device; 2. blower; 3. electric hoist; 4. powder bag; 5. hopper; 6. first rotary feeder; 7. first dust collector; 8. powder gas conveying pipe; 9. solid powder storage device; 10. annular gas blowing device; 11. second rotary feeder; 12. loss-in-weight metering feeder; 13. second dust collector; 14. air compressor; 15. dryer; 16. dry air conveying pipe. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention are described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. For ease of explanation, the terms "vertical", "horizontal", "left", "right", "upper", "lower", "inner", "outer", "bottom", etc. used in this specification indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application.

[0028] It should be noted that the embodiments of the present invention and the features involved in the embodiments can be combined with each other without conflict. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0029] As attached Figure 1-3 As shown, a solid-gas mixed loading and lifting system includes a solid powder loading and unloading device 1 and a blower 2, a solid powder storage device 9, and a powder-gas conveying pipe 8 connecting the solid powder loading and unloading device 1 and the solid powder storage device 9.

[0030] The solid powder loading and unloading device 1 and the blower 2 are both located at a lower level. An electric hoist 3 for suspending a powder bag 4 is provided on the top of the solid powder loading and unloading device 1, and a hopper 5 for receiving and temporarily storing powder is provided in the middle of the solid powder loading and unloading device 1. The worker operates the electric hoist 3 to suspend the powder bag 4 containing powder above the hopper 5, unfastens the discharge port below the powder bag 4, and the powder in the powder bag 4 naturally falls into the hopper 5 under the action of gravity.

[0031] A first dust collector 7 is provided at the upper edge of the hopper 5, and is used to absorb dust generated during the natural falling of the powder in the powder bag 4 between the hopper 5 and the suspended powder bag 4, so as to prevent dust from spreading and polluting the working environment and endangering the health of workers.

[0032] A first rotary feeder 6 is provided below the hopper 5 , and the powder in the hopper 5 can fall quantitatively after passing through the first rotary feeder 6 and enter the powder gas conveying pipe 8 .

[0033] The powder gas conveying pipe 8 is connected to the blower 2 at one end close to the solid powder loading and unloading device 1. The blower 2 is used to generate a high-speed airflow in the powder gas conveying pipe 8 from the solid powder loading and unloading device 1 to the solid powder storage device 9.

[0034] When the powder in the hopper 5 continuously and quantitatively enters the powder gas conveying pipe 8 , the powder gradually moves upward along with the air flow in the powder gas conveying pipe 8 and enters the solid powder storage device 9 along the powder gas conveying pipe 8 .

[0035] The powder gas conveying pipe 8 is formed by connecting multiple sections of pipes end to end through clamps, has a simple structure, can adapt to various on-site terrains, is flexible to install, and has a low cost.

[0036] One end of the powder gas conveying pipe 8 close to the solid powder storage device 9 is connected to the top of the solid powder storage device 9. The solid powder storage device 9 is located at a higher terrain, and its position is higher than the solid powder loading and unloading device 1. In order to reduce the number of powder loading times, the volume of the solid powder storage device 9 can be enlarged to a certain extent, for example, the volume of the solid powder storage device 9 is made larger than the volume of the hopper 5.

[0037] A second dust collector 13 is provided on the top of the solid powder storage device 9. The second dust collector 13 is used to absorb the dust generated in the process of the powder in the powder gas conveying pipe 8 entering the solid powder storage device 9 to prevent the dust from spreading and polluting the working environment and endangering the health of workers.

[0038] The bottom of the solid powder storage device 9 is a conical structure, and an annular gas blowing device 10 is installed at the bottom of the solid powder storage device 9 to facilitate the smooth discharge of the powder in the solid powder storage device 9, thereby ensuring smooth discharge of the powder from the solid powder storage device 9. The annular gas blowing device 10 is a prior art.

[0039] The solid-gas mixed feeding and lifting system of the utility model further comprises an air compressor 14 , a dryer 15 and a drying air conveying pipe 16 .

[0040] One end of the dry air conveying pipe 16 is connected to the top of the solid powder storage device 9, and the other end of the dry air conveying pipe 16 is connected to the air compressor 14. After the air compressor 14 is powered on, it can pass air into the upper part of the solid powder storage device 9 through the dry air conveying pipe 16.

[0041] The dryer 15 is arranged on the dry air conveying pipe 16 between the solid powder storage device 9 and the air compressor 14. The dryer 15 can dry the air in the dry air conveying pipe 16, so that a dry air layer is formed on the upper part of the solid powder storage device 9. The dry air layer can provide a sealing effect for the solid powder storage device 9, effectively isolate the wet air, and prevent the powder in the solid powder storage device 9 from deliquescence.

[0042] A pipeline for outputting powder is provided below the solid powder storage device 9, and a second rotary feeder 11 is installed on the pipeline for quantitatively dropping the powder. A weightless metering feeder 12 is provided below the second rotary feeder 11 for precise feeding.

[0043] It is worth noting that since the equipment components involved in the solid-gas mixing feeding and lifting system in the utility model (such as the blower 2, the electric hoist 3, the rotary feeder, the loss-in-weight metering feeder 12, the air compressor 14 and the dust collector, etc.) are all mature equipment widely used in the prior art, the detailed structure of each device will not be repeated in this embodiment.

[0044] The implementation principle of the above embodiment is:

[0045] The solid powder loading and unloading device 1 and the blower 2 are located at a lower terrain, while the solid powder storage device 9 is located at a higher terrain. The powder gas conveying pipe 8 connects the solid powder loading and unloading device 1 with the solid powder storage device 9, and the powder gas conveying pipe 8 is connected with the blower 2 at one end close to the solid powder loading and unloading device 1. After the blower 2 is powered on, a high-speed airflow can be generated in the powder gas conveying pipe 8 from the solid powder loading and unloading device 1 to the solid powder storage device 9. The powder bag 4 is suspended on the electric hoist 3 on the top of the solid powder loading and unloading device 1, and the powder falls downward into the hopper 5. After the powder in the hopper 5 passes through the first rotary feeder 6 and continuously enters the powder gas conveying pipe 8 in a quantitative manner, it gradually moves upward with the airflow flowing in the powder gas conveying pipe 8 and enters the solid powder storage device 9, thereby achieving the effect of lifting the powder at a lower terrain to a higher terrain. The utility model uses the air conveying principle to blow powder from the solid powder loading and unloading device 1 to the solid powder storage device 9 through the powder air conveying pipe 8. The overall structure is simple and the cost is low. In actual use, the utility model can achieve a dry powder conveying capacity of 2.5t / h and a loading and lifting height of up to 20m.

[0046] Although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A solid-gas mixed feeding and lifting system, characterized in that: The invention comprises a solid powder loading and unloading device (1) and a blower (2), a solid powder storage device (9), and a powder gas conveying pipe (8) connecting the solid powder loading and unloading device (1) and the solid powder storage device (9), wherein the solid powder storage device (9) is located at a position higher than the solid powder loading and unloading device (1), an electric hoist (3) for suspending a powder bag (4) is arranged on the top of the solid powder loading and unloading device (1), a hopper (5) for receiving and temporarily storing powder is arranged below the electric hoist (3), the blower (2) supplies air into the powder gas conveying pipe (8), and the powder in the hopper (5) enters the powder gas conveying pipe (8), moves upward along with the airflow flowing in the powder gas conveying pipe (8), and enters the solid powder storage device (9).

2. The solid-gas mixed feeding and lifting system according to claim 1 is characterized in that: A first rotary feeder (6) is provided below the hopper (5), and the powder in the hopper (5) passes through the first rotary feeder (6) and then enters the powder gas conveying pipe (8) in a quantitative manner.

3. The solid-gas mixed feeding and lifting system according to claim 1 is characterized in that: A first dust collector (7) is provided between the hopper (5) and the suspended powder bag (4), wherein the first dust collector (7) is used to absorb dust generated by the powder in the powder bag (4) during its natural falling process.

4. The solid-gas mixed feeding and lifting system according to claim 1 is characterized in that: The volume of the solid powder storage device (9) is greater than the volume of the hopper (5).

5. The solid-gas mixed feeding and lifting system according to claim 4 is characterized in that: The bottom of the solid powder storage device (9) is a conical structure, and an annular gas blowing device (10) is installed at the bottom of the solid powder storage device (9) to promote smooth discharge of powder in the solid powder storage device (9).

6. The solid-gas mixed feeding and lifting system according to claim 1 is characterized in that: It also includes an air compressor (14) and a drying air conveying pipe (16), one end of the drying air conveying pipe (16) being connected to the top of the solid powder storage device (9), and the other end of the drying air conveying pipe (16) being connected to the air compressor (14).

7. The solid-gas mixed loading and lifting system according to claim 6 is characterized in that: It also includes a dryer (15), wherein the dryer (15) is arranged on a drying air conveying pipe (16) between the solid powder storage device (9) and the air compressor (14).

8. The solid-gas mixed feeding and lifting system according to claim 1 is characterized in that: A second dust collector (13) is installed on the top of the solid powder storage device (9), and the second dust collector (13) is used to absorb dust generated in the process of the powder in the powder gas conveying pipe (8) entering the solid powder storage device (9).

9. The solid-gas mixed loading and lifting system according to claim 1, characterized in that: The powder gas conveying pipe (8) is formed by connecting multiple sections of pipes end to end via clamps.

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