Unloading system and unloading method

Abstract

The present invention discloses a material unloading system and method. The unloading system includes a fan, a material conveying pipeline, a ton bag unloading device, and a tank truck unloading device. The ton bag unloading device and the tank truck unloading device are both connected to the material conveying pipeline. The fan can selectively connect to one of the ton bag unloading device and the tank truck unloading device to blow material into the material conveying pipeline. The unloading system of the present invention integrates the ton bag unloading device and the tank truck unloading device, and both use fans to blow material discharged from the ton bag unloading device and the tank truck unloading device. This optimizes the layout of the unloading system within the workshop, reduces costs and energy consumption, and facilitates personnel operations.

Description

Technical Field

[0001] The present invention relates to the field of material transportation, and in particular to a material unloading system and a material unloading method. Background Art

[0002] Existing tank truck unloading generally uses compressed air to blow the material from the tank truck outlet into the output pipe. Ton bag unloading generally uses Roots blowers for conveying. Therefore, in the existing unloading system, tank truck unloading and ton bag unloading are set up separately. Summary of the Invention

[0003] The object of the present invention is to provide a unloading system and a unloading method thereof, so as to integrate a ton bag unloading device and a tank truck unloading device into the same system.

[0004] A first aspect of the present invention provides a discharge system, comprising:

[0005] Fan;

[0006] Material delivery pipeline;

[0007] Ton bag unloading device, connected to the material delivery pipeline; and

[0008] Tank truck unloading device, connected to the material delivery pipeline;

[0009] The fan can be selectively connected to one of the ton bag unloading device and the tank truck unloading device to blow the material to the material conveying pipeline.

[0010] In some embodiments, the ton bag unloading device includes a unloading bin, and the unloading system includes a rotary valve arranged below the unloading bin, the first end of the rotary valve is connected to the fan, and the second end of the rotary valve is connected to the material delivery pipeline.

[0011] In some embodiments, the tank truck unloading device includes a uniform feeder connected to the discharge port of the tank truck compartment, the uniform feeder includes an inclined tube body, and the axis of the inclined tube body is inclined relative to the vertical direction.

[0012] In some embodiments, the inclined tube is arc-shaped.

[0013] In some embodiments, the uniform feeder includes a flared portion arranged on the upper side of the inclined tube body, the large diameter end of the flared portion is located on the upper side to receive the material, and the small diameter end of the flared portion is located on the lower side and connected to the inclined tube body.

[0014] In some embodiments, the tank truck unloading device further includes a discharge control valve disposed between the discharge port of the carriage and the uniform discharger.

[0015] In some embodiments, the tank truck unloading device further includes a discharge pipe for connecting the uniform discharger and the material delivery pipeline, and the nominal diameter of the discharge pipe is in the range of [80 mm, 250 mm].

[0016] In some embodiments, the uniform feeder and the discharge pipe are integrally or separately arranged.

[0017] In some embodiments, the tank truck unloading device also includes a balancing pipe, the first end of the balancing pipe is connected to the second end of the rotary valve, the second end of the balancing pipe is connected to the tank truck compartment and communicated to the inner cavity of the compartment to maintain the pressure balance between the inner cavity of the compartment and the discharge pipe.

[0018] In some embodiments, a pressure control valve is provided on the balancing pipe.

[0019] A second aspect of the present invention provides a method for unloading the unloading system provided in the first aspect of the present invention, comprising the following steps:

[0020] Verify that the unloading system is in tote bag unloading mode or tank truck unloading mode; and

[0021] If the unloading system is in the ton bag unloading mode, the fan is controlled to be connected to the ton bag unloading device; if the unloading system is in the tank truck unloading mode, the fan is controlled to be connected to the tank truck unloading device.

[0022] In some embodiments, if the unloading system is in the tank truck unloading mode, controlling the fan to communicate with the tank truck unloading includes the following steps:

[0023] Controlling the balance pipe to communicate with the inner cavity of the carriage so that the air blown by the fan enters the carriage to increase the inner cavity pressure of the carriage;

[0024] The discharge port of the carriage is controlled to be connected so that the material in the carriage is output to the discharge pipe and transported to the conveying pipeline under the blowing of the fan.

[0025] The unloading system and method according to the embodiments of the present invention include a fan, a material conveying pipeline, a ton bag unloading device, and a tank truck unloading device. Both the ton bag unloading device and the tank truck unloading device are connected to the material conveying pipeline. The fan can selectively connect to one of the ton bag unloading device and the tank truck unloading device to blow the material into the material conveying pipeline. The unloading system of the present invention integrates the ton bag unloading device and the tank truck unloading device, and both use fans to blow the material output by the ton bag unloading device and the tank truck unloading device, thereby optimizing the layout of the unloading system within the workshop, reducing costs and energy consumption, and facilitating personnel operations.

[0026] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0028] Figure 1 Schematic diagram of the structure of the unloading system according to an embodiment of the present invention.

[0029] Figure 2 for Figure 1 Schematic diagram of the structure of the uniform feeder.

[0030] Figure 3 for Figure 1 Schematic diagram of the connection structure between the discharge pipe and the feed pipeline. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0033] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0034] like Figure 1 As shown, the unloading system of the embodiment of the present invention includes:

[0035] Fan 1;

[0036] Material delivery pipeline 11;

[0037] Ton bag unloading device 2, connected to the material delivery pipeline 11; and

[0038] Tank truck unloading device, connected to the material delivery pipeline 11;

[0039] The fan 1 can be selectively connected to one of the ton bag unloading device and the tank truck unloading device to blow the material to the material conveying pipeline 11.

[0040] The unloading system of the embodiment of the present invention integrates the ton bag unloading device 2 and the tank truck unloading device, and both use a fan 1 to blow the materials output by the ton bag unloading device 2 and the tank truck unloading device, thereby optimizing the layout of the unloading system in the workshop, reducing costs and energy consumption, and facilitating personnel operations.

[0041] The blower 1 of this embodiment is a Roots blower. The material conveyed by the discharge system of this embodiment is PET particles.

[0042] Specifically in this embodiment, Figure 1 As shown, the ton bag unloading device 2 includes a discharge bin 22. The unloading system includes a rotary valve 3 disposed below the discharge bin 22. The first end of the rotary valve 3 is connected to the fan 1, and the second end of the rotary valve 3 is connected to the material delivery pipeline 11. The ton bag 21 is located above the discharge bin 22. When unloading is required, the ton bag 21 is opened and the material inside slides from the opening into the discharge bin 22 under the action of gravity. It is then discharged from the bottom outlet of the discharge bin 22 into the rotary valve 3. Under the blowing of the fan 1, the material is transported through the intermediate pipeline 14 to the material delivery pipeline 11 and then out, completing the unloading.

[0043] Intermediate pipeline 14 connects the rotary valve 3 and the material delivery pipeline 11. A first on-off valve 4 is installed on intermediate pipeline 14 to control its on / off operation. A second on-off valve 5 is installed on the material delivery pipeline 11. When material is to be transported, the first and second on-off valves 4 and 5 are opened, allowing the blower 1 to communicate with the material delivery pipeline 11 through the rotary valve 3 and intermediate pipeline 14, thereby delivering the material.

[0044] like Figure 1 As shown, the tank truck unloading device of this embodiment includes a discharge pipe 12 connected to the discharge port of the tank truck compartment 8. The discharge pipe 12 is connected to the material delivery pipeline 11. The nominal diameter of the discharge pipe 12 ranges from 80 mm to 250 mm. The larger the inner diameter of the discharge pipe 12, the more dispersed the material discharged from the discharge pipe 12. This allows the material to be blown to the material delivery pipeline 11 even when the wind pressure output by the blower 1 is low. Specifically, the nominal diameter of the discharge pipe 12 can be 80 mm, 100 mm, 125 mm, 150 mm, 200 mm, and 250 mm.

[0045] Preferably, the structure of the discharge pipe 12 of this embodiment is as follows Figure 3 As shown, the discharge pipe 12 is a tapered pipe, the upper end of which is connected to the lower end of the uniform feeder 10 , and the lower end of the discharge pipe 12 is connected to the material delivery pipeline 11 .

[0046] In order to ensure that the discharge pipe 12 can evenly transport materials, the tank truck unloading device of this embodiment also includes a uniform feeder 10 disposed between the discharge pipe 12 and the discharge port of the carriage 8. The uniform feeder 10 includes an inclined tube body 102, the axis of which is inclined relative to the vertical direction. Under the action of gravity, the material passes through the inclined tube body 102 at a substantially uniform speed. The unloading system of this embodiment uses the uniform feeder 10 instead of the rotary valve to reduce costs. Specifically, the use of a Roots blower can achieve a feeding rate of 25 to 30 tons per hour.

[0047] Specifically in this embodiment, the inclined tube body 102 is arc-shaped, and the axis of the arc-shaped tube is an arc line. Specifically, the speed of material output can be controlled according to the curvature and diameter of the arc-shaped tube and the air volume of the fan.

[0048] In some embodiments, the uniform feeder includes a flared portion 101 disposed on the upper side of the inclined tube body 102 , the large diameter end of the flared portion 101 is located on the upper side to receive the material, and the small diameter end of the flared portion is located on the lower side and connected to the inclined tube body 102 .

[0049] When the fan 1 is running, the wind pressure at the connection between the discharge pipe 12 and the feeding pipe 11 is relatively high, while the pressure in the carriage 8 is normal pressure. Therefore, if the pressure in the carriage 8 is not adjusted, the material cannot be discharged at all due to the high pressure in the discharge pipe 12. Figure 1 and Figure 3 As shown, the tank truck unloading device of this embodiment further includes a balancing pipe 7, the first end of which is connected to the second end of the rotary valve 3, and the second end of which is connected to the tank truck compartment 8 and communicates with the interior of the compartment 8. Before the discharge control valve 9 is opened, the balancing pipe 7 is first connected so that the wind force output by the fan 1 can be transmitted to the compartment 8 through the balancing pipe 7, thereby increasing the pressure in the interior of the compartment 8. After the pressure in the interior of the compartment 8 increases to balance with the pressure in the discharge pipe 12, the discharge control valve 9 of the compartment 8 is opened to allow the material to be discharged through the discharge pipe 12.

[0050] The balance pipe 7 of this embodiment is provided with a pressure control valve 6. The opening of the pressure control valve 6 is adjustable. The opening of the pressure control valve 6 can be adjusted according to the pressure of the inner cavity of the compartment 8.

[0051] The pressure control valve 6 may be an on-off valve.

[0052] The unloading method of the unloading system according to the embodiment of the present invention comprises the following steps:

[0053] Verify that the unloading system is in tote bag unloading mode or tank truck unloading mode; and

[0054] If the unloading system is in the ton bag unloading mode, the fan 1 is controlled to be connected to the ton bag unloading device; if the unloading system is in the tank truck unloading mode, the fan 1 is controlled to be connected to the tank truck unloading device.

[0055] Specifically, when in the ton bag unloading mode, the ton bag unloading device is controlled to start and the first on-off valve 4 and the second on-off valve 5 are controlled to open so that the fan 1 blows the material at the rotary valve 3 into the conveying pipeline 11.

[0056] When in tank truck unloading mode, first control the balance pipe 7 to communicate with the inner cavity of the compartment 8 so that the air blown by the fan enters the compartment 8 to increase the inner cavity pressure of the compartment 8;

[0057] Then the discharge port of the carriage 8 is controlled to be connected so that the material in the carriage 8 is output to the discharge pipe 12 and transported to the conveying pipeline 11 under the blowing of the fan.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solutions of the present invention. They should all be included in the scope of the technical solutions claimed for protection by the present invention.

Claims

1. A discharging system, characterized in that: include: Fan (1); Material delivery pipeline (11); Ton bag unloading device (2), connected to the material delivery pipeline (11); and A tank truck unloading device connected to the material delivery pipeline (11); The fan (1) can be selectively connected to one of the ton bag unloading device and the tank truck unloading device to blow the material to the material conveying pipeline (11); The ton bag unloading device (2) includes a unloading bin (22), and the unloading system includes a rotary valve (3) arranged below the unloading bin (22), a first end of the rotary valve (3) being connected to the fan, and a second end of the rotary valve (3) being connected to the material delivery pipeline (11); The tank truck unloading device includes a uniform discharger (10) connected to the discharge port of the tank truck compartment (8) and a discharge pipe (12) for connecting the uniform discharger (10) and the conveying pipeline (11), wherein the uniform discharger (10) includes an inclined tube body (102), the axis of which is inclined relative to the vertical direction, and the discharge pipe (12) is a conical tube, the upper end of which is connected to the lower end of the uniform discharger (10), the lower end of which is connected to the conveying pipeline (11), and the lower end of the conical tube is large in diameter and the upper end is small in diameter.

2. The unloading system according to claim 1, characterized in that: The inclined tube body (102) is arc-shaped.

3. The unloading system according to claim 1, characterized in that: The uniform feeder comprises a flared portion (101) arranged on the upper side of the inclined tube body (102), the large diameter end of the flared portion (101) being located on the upper side to receive materials, and the small diameter end of the flared portion being located on the lower side and connected to the inclined tube body (102).

4. The unloading system according to claim 1, characterized in that: The tank truck unloading device further comprises a discharge control valve (9) arranged between the discharge port of the truck compartment (8) and the uniform discharger (10).

5. The unloading system according to claim 1, characterized in that: The nominal diameter of the discharge pipe (12) is in the range of [80 mm, 250 mm].

6. The unloading system according to claim 5, characterized in that: The uniform feeder (10) and the discharge pipe (12) are integrally provided or separately provided.

7. The unloading system according to claim 1, characterized in that: The tank truck unloading device further includes a balancing pipe (7), a first end of the balancing pipe (7) being connected to the second end of the rotary valve (3), and a second end of the balancing pipe (7) being connected to the tank truck compartment (8) and communicating with the inner cavity of the compartment (8) to maintain pressure balance between the inner cavity of the compartment (8) and the discharge pipe.

8. The unloading system according to claim 7, characterized in that: The balance pipe (7) is provided with a pressure control valve (6).

9. A discharging method based on the discharging system according to any one of claims 1 to 8, characterized in that: The steps include: Determining whether the unloading system is in a ton bag unloading mode or a tank truck unloading mode; and If the unloading system is in a ton bag unloading mode, the fan (1) is controlled to be connected to the ton bag unloading device (2); if the unloading system is in a tank truck unloading mode, the fan (1) is controlled to be connected to the tank truck unloading device.

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