Pneumatic compensation device for pneumatic material conveying

Abstract

The utility model provides a pneumatic compensation device for pneumatic material conveying. The pneumatic compensation device comprises a first material conveying pipe, an air guide device, an air inlet pipe and a second material conveying pipe. The first material conveying pipe comprises a first material conveying pipe feed port and a first material conveying pipe discharge port; the air guide device comprises an air guide device bottom surface, an air guide device side wall and an air guide device top surface; a discharge hole of the first material conveying pipe penetrates through the bottom surface of the air guide device and extends into the air guide cavity; the air inlet pipe is tangentially connected with the side wall of the air guide device and is used for conveying air into the air guide cavity through an air inlet pipe air outlet of the air inlet pipe; the second material conveying pipe comprises a second material conveying pipe feed port and a second material conveying pipe discharge port; one end of the second material conveying pipe is connected with the top surface of the gas guide device; and a valve inlet with a preset distance is formed between the discharge port of the first material conveying pipe and the feed port of the second material conveying pipe. The gas consumption of the conveying system is reduced, the energy consumption is reduced, and the economical efficiency of the conveying system is improved.

Description

Technical Field

[0001] The present application relates to a material conveying system, and in particular to a pneumatic compensation device for pneumatic conveying of materials. Background Art

[0002] In the process of pneumatic conveying of materials, as the conveying distance of the materials in the conveying pipeline increases, the air pressure in the conveying pipeline will be lost, reducing the ability of pneumatic conveying of materials. In order to reduce the impact of the air pressure drop on the material conveying capacity, the prior art, such as Figure 1 As shown, at least one air inlet pipe 200 is added at an appropriate position of the conveying pipeline 100, and the air inlet pipe is connected to the blower (air compressor), and is used to replenish air to the conveying pipeline through the air replenishment port 210, so as to compensate for the air pressure loss in the pipeline, increase the air pressure of the conveying pipeline, and thus compensate for the ability of the conveying pipeline to pneumatically transport materials. However, this method has a poor air replenishment effect, and has certain requirements on the specifications of the blower or air compressor, requiring a larger blower or air compressor, requiring a larger air replenishment volume, high energy consumption, and relatively poor economic efficiency. Utility Model Content

[0003] The utility model provides a pneumatic compensation device for pneumatic conveying of materials, which can solve the problems in the prior art that the air replenishment effect is poor, the specifications of the blower or air compressor are certain, a larger blower or air compressor is needed, the energy consumption is high, and the economy is relatively poor.

[0004] In order to solve the technical problems in the background technology, the present application provides a pneumatic compensation device for pneumatic conveying of materials, comprising:

[0005] A first material conveying pipe, the first material conveying pipe comprising a first material conveying pipe feed port and a first material conveying pipe discharge port;

[0006] The air guide device comprises a bottom surface of the air guide device, a side wall of the air guide device, and a top surface of the air guide device; the bottom surface of the air guide device and the top surface of the air guide device are connected through the side wall of the air guide device to form an air guide cavity; the discharge port of the first material conveying pipe penetrates the bottom surface of the air guide device and extends into the air guide cavity;

[0007] An air intake pipe, the air intake pipe is tangentially connected to the side wall of the air guide device, and is used to transport gas into the air guide cavity through the air intake pipe outlet of the air intake pipe;

[0008] A second material conveying pipe, the second material conveying pipe comprising a second material conveying pipe feed port and a second material conveying pipe discharge port; one end of the second material conveying pipe away from the second material conveying pipe discharge port is connected to the top surface of the air guide device;

[0009] An air valve inlet with a preset distance is provided between the discharge port of the first material conveying pipe and the feed port of the second material conveying pipe, so as to replenish air to the second material conveying pipe.

[0010] Optionally, the air guide device is in the shape of a truncated cone, the bottom surface of the air guide device is the bottom surface of the truncated cone; the side wall of the air guide device is the side surface of the truncated cone; and the top surface of the air guide device is the top surface of the truncated cone.

[0011] Optionally, the discharge port of the first material conveying pipe is circular, and the feed port of the second material conveying pipe is circular; the axis of the air guide device, the axis of the discharge port of the first material conveying pipe, and the axis of the feed port of the second material conveying pipe are parallel.

[0012] Optionally, the axis of the air guide device, the axis of the discharge port of the first material conveying pipe and the axis of the feed port of the second material conveying pipe are coaxial.

[0013] Optionally, the angle between the side wall of the air guide device and the axis of the discharge port of the first material conveying pipe is in the range of [20°, 40°].

[0014] Optionally, the end of the second material conveying pipe away from the second material conveying pipe outlet is connected to the top surface of the gas guide device in the following manner: the feed port of the second material conveying pipe is connected to the top surface of the gas guide device; or the feed port of the second material conveying pipe is connected through the top surface of the gas guide device.

[0015] Optionally, when the connection method of the end of the second material conveying pipe away from the second material conveying pipe outlet and the top surface of the air guide device is that the second material conveying pipe feed port is connected to the top surface of the air guide device, the shape of the valve inlet between the first material conveying pipe outlet and the second material conveying pipe feed port is cylindrical.

[0016] Optionally, when the end of the second material conveying pipe away from the second material conveying pipe outlet is connected to the top surface of the air guide device in such a way that the second material conveying pipe feed port is connected through the top surface of the air guide device, the first material conveying pipe outlet is provided with a first air inlet and air guide slope.

[0017] Optionally, the feed inlet of the second material conveying pipe is provided with a second air intake guide slope corresponding to the first air intake guide slope.

[0018] Optionally, the pneumatic compensation device for pneumatic material conveying also includes a feed valve and / or a discharge valve; the feed valve is used to connect the feed port of the first material conveying pipe with the input end pipeline; the discharge valve is used to connect the discharge port of the second material conveying pipe with the output end pipeline.

[0019] It can be seen that the pneumatic compensation device for pneumatic conveying of materials provided by the present application replenishes air through the air inlet pipe, and the airflow enters the air guide cavity of the air guide device along the tangent direction of the side wall of the air guide device through the tangentially connected air guide device. The airflow turns to the inclined direction of the side wall of the air guide device during the rotational motion. Since the inclined direction of the side wall of the air guide device gradually decreases due to the diameter of its side wall, the airflow will generate acceleration during the rotational motion and accelerate to the inclined direction of the side wall of the air guide device. The valve inlet size is small. When the high-speed airflow enters the small-sized valve inlet, the airflow is further accelerated, and the Bernoulli phenomenon occurs, so that a negative pressure is formed at the valve inlet, making the air replenishment more efficient. In this way, the conveying speed of the material in the second material conveying pipe can be increased. Through such a pneumatic compensation device for pneumatic conveying of materials, the amount of air added can be reduced, and the pneumatic conveying effect is better, thereby reducing the energy consumption of the blower or air compressor, reducing energy loss, and improving the economy of the overall system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A structural schematic diagram of the prior art solution is shown;

[0022] Figure 2 A schematic diagram of the structure of a pneumatic compensation device for pneumatic conveying of materials provided in one embodiment of the present application is shown;

[0023] Figure 3 A three-dimensional diagram of the structure of a pneumatic compensation device for pneumatic conveying of materials provided in one embodiment of the present application is shown;

[0024] Figure 4 A schematic diagram of the structure of a pneumatic compensation device for pneumatic conveying of materials provided in another embodiment of the present application is shown;

[0025] Figure 5 Shows this application Figure 4 A partially enlarged structural schematic diagram of a pneumatic compensation device for pneumatic conveying of materials is provided. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field without creative work in the embodiments of the utility model are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be noted that the description of the orientation or positional relationship indicated by "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like in the present embodiment is only used to explain the relative positional relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. Therefore, it cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, fixed installation, or a detachable connection, detachable installation, or an integral connection, an integral installation; it can be a mechanical connection or an electrical connection, wherein the electrical connection can include any one or a combination of two of a power drive connection and a communication connection; it can be a direct connection, a direct installation, or an indirect connection or indirect installation through an intermediate medium, or it can be the internal connection of two elements, which can be a wireless connection or a wired connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] from Figure 2 , Figure 3It can be seen that the pneumatic compensation device for pneumatic conveying of materials includes: a first material conveying pipe 110, an air guide device 300, an air inlet pipe 200, and a second material conveying pipe 120. The air inlet pipe 200 is connected to a blower or an air compressor (not shown in the figure). The first material conveying pipe 110 includes a first material conveying pipe feed port 112 and a first material conveying pipe discharge port 111; the air guide device 300 includes an air guide device bottom surface 310, an air guide device side wall 320, and an air guide device top surface 330; the air guide device bottom surface 310 and the air guide device top surface 330 are connected through the air guide device side wall 320 to form an air guide cavity; the first material conveying pipe discharge port 111 penetrates the air guide device bottom surface 310 and extends into the air guide cavity; the air inlet pipe 200 and the air guide device side wall 320 are tangentially welded or integrally formed to convey gas into the air guide cavity through the air inlet pipe outlet 210 of the air inlet pipe 200. Air is replenished through the air intake pipe 200, and the air flow enters the air guide cavity of the air guide device 300 along the tangential direction of the air guide device side wall 320 through the tangentially connected air guide device 300. The air flow turns to the inclined direction of the air guide device side wall 320 during the rotational motion. Since the inclined direction of the air guide device side wall 320 gradually decreases due to the diameter of the side wall, the air flow will generate acceleration during the rotational motion, and accelerate to turn to the inclined direction of the air guide device side wall 320.

[0031] The second material conveying pipe 120 includes a second material conveying pipe feed port 121 and a second material conveying pipe discharge port 122; one end of the second material conveying pipe 120 away from the second material conveying pipe discharge port 122 is welded to or integrally formed with the top surface 330 of the air guide device; a valve inlet with a preset distance is provided between the first material conveying pipe discharge port 111 and the second material conveying pipe feed port 121, so as to replenish air to the second material conveying pipe 120. The valve inlet is small in size, and when the high-speed airflow enters the small-sized valve inlet, the airflow is further accelerated, and the Bernoulli phenomenon occurs, so that negative pressure is formed at the valve inlet, making the air replenishment more efficient. In this way, the conveying speed of the material in the second material conveying pipe 110 can be increased. By using such a pneumatic compensation device for pneumatic conveying of materials, the amount of air added can be reduced, and the pneumatic conveying effect is better, thereby reducing the energy consumption of the blower or air compressor, reducing energy loss, and improving the economy of the overall system.

[0032] like Figure 3As shown, the air guide device 300 is in the shape of a truncated cone, and the bottom surface 310 of the air guide device is the bottom surface of the truncated cone; the side wall 320 of the air guide device is the side surface of the truncated cone; and the top surface 330 of the air guide device is the top surface of the truncated cone. The first material conveying pipe outlet 111 is circular, and the second material conveying pipe feed port 121 is circular; the axis of the air guide device 300, the axis of the first material conveying pipe outlet 111, and the axis of the second material conveying pipe feed port 121 are parallel. The axis of the air guide device 300, the axis of the first material conveying pipe outlet 111, and the axis of the second material conveying pipe feed port 121 are coaxial. The range of the angle between the side wall 320 of the air guide device and the axis of the first material conveying pipe outlet 111 is [20°, 40°]. For example, when the angle between the side wall 320 of the air guide device and the axis of the first material conveying pipe outlet 111 is 20°, 25°, 30°, 35°, or 40°, a better air guide effect is achieved.

[0033] like Figure 2 , Figure 4 , Figure 5 As shown: the connection mode of the second material conveying pipe 120 away from the second material conveying pipe outlet 122 and the top surface 330 of the gas guide device is: the second material conveying pipe feed port 121 is connected to the top surface 330 of the gas guide device; or the second material conveying pipe feed port 121 is connected to the top surface 330 of the gas guide device through. Figure 2 As shown: when the end of the second material conveying pipe 120 away from the second material conveying pipe outlet 122 is connected to the top surface 330 of the air guide device in the manner that the second material conveying pipe feed port 121 is connected to the top surface 330 of the air guide device, the shape of the valve inlet between the first material conveying pipe outlet 111 and the second material conveying pipe feed port 121 is cylindrical. Figure 4 , Figure 5 As shown, when the end of the second material conveying pipe 120 away from the second material conveying pipe discharge port 122 is connected to the top surface 330 of the air guide device in the manner that the second material conveying pipe feed port 121 is connected through the top surface 330 of the air guide device, the first material conveying pipe discharge port 111 is provided with a first air inlet guide slope 111a. The second material conveying pipe feed port 121 is provided with a second air inlet guide slope 121a corresponding to the first air inlet guide slope 111a. The first air inlet guide slope 111a and the second air inlet guide slope 121a are parallel to each other.

[0034] Optionally, the pneumatic compensation device for pneumatic material conveying further includes a feed valve 410 and / or a discharge valve 420; the feed valve 410 is used to connect the feed port 112 of the first material conveying pipe with the input end pipeline; the discharge valve 420 is used to connect the discharge port 122 of the second material conveying pipe with the output end pipeline. The feed valve 410 and / or the discharge valve 420 can be better connected to adjacent pipelines.

[0035] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A pneumatic compensation device for pneumatic conveying of materials, characterized in that: include: A first material conveying pipe (110), wherein the first material conveying pipe (110) comprises a first material conveying pipe feed port (112) and a first material conveying pipe discharge port (111); An air guide device (300), the air guide device (300) comprising an air guide device bottom surface (310), an air guide device side wall (320), and an air guide device top surface (330); the air guide device bottom surface (310) and the air guide device top surface (330) are connected via the air guide device side wall (320) to form an air guide cavity; the first material conveying pipe outlet (111) penetrates the air guide device bottom surface (310) and extends into the air guide cavity; An air intake pipe (200), the air intake pipe (200) being tangentially connected to the side wall (320) of the air guide device, and being used to transport gas into the air guide cavity through the air intake pipe outlet (210) of the air intake pipe (200); A second material conveying pipe (120), wherein the second material conveying pipe (120) comprises a second material conveying pipe feed port (121) and a second material conveying pipe discharge port (122); an end of the second material conveying pipe (120) away from the second material conveying pipe discharge port (122) is connected to a top surface (330) of the air guide device; An air valve inlet with a preset distance is provided between the first material conveying pipe outlet (111) and the second material conveying pipe feed port (121) for supplying air to the second material conveying pipe (120).

2. The pneumatic compensation device for pneumatic conveying of materials according to claim 1, characterized in that: The air guide device (300) is in the shape of a truncated cone, the bottom surface (310) of the air guide device is the bottom surface of the truncated cone; the side wall (320) of the air guide device is the side surface of the truncated cone; and the top surface (330) of the air guide device is the top surface of the truncated cone.

3. The pneumatic compensation device for pneumatic conveying of materials according to claim 2, characterized in that: The discharge port (111) of the first material conveying pipe is circular, and the feed port (121) of the second material conveying pipe is circular; the axis of the air guide device (300), the axis of the discharge port (111) of the first material conveying pipe, and the axis of the feed port (121) of the second material conveying pipe are parallel.

4. The pneumatic compensation device for pneumatic conveying of materials according to claim 3, characterized in that: The axis of the air guide device (300), the axis of the first material conveying pipe outlet (111) and the axis of the second material conveying pipe feed port (121) are coaxial.

5. The pneumatic compensation device for pneumatic conveying of materials according to claim 4, characterized in that: The angle between the side wall (320) of the air guide device and the axis of the first material conveying pipe outlet (111) is in the range of [20°, 40°].

6. The pneumatic compensation device for pneumatic conveying of materials according to claim 1, characterized in that: The connection method of the end of the second material conveying pipe (120) away from the second material conveying pipe outlet (122) and the top surface (330) of the gas guide device is: the feed port (121) of the second material conveying pipe is connected to the top surface (330) of the gas guide device; or the feed port (121) of the second material conveying pipe is connected to the top surface (330) of the gas guide device through.

7. The pneumatic compensation device for pneumatic conveying of materials according to claim 6, characterized in that: When the connection mode between the end of the second material conveying pipe (120) away from the second material conveying pipe discharge port (122) and the top surface (330) of the gas guide device is that the second material conveying pipe feed port (121) is connected to the top surface (330) of the gas guide device, the shape of the valve inlet between the first material conveying pipe discharge port (111) and the second material conveying pipe feed port (121) is cylindrical.

8. The pneumatic compensation device for pneumatic conveying of materials according to claim 6, characterized in that: When the connection mode between the end of the second material conveying pipe (120) away from the second material conveying pipe discharge port (122) and the top surface (330) of the air guide device is that the feed port (121) of the second material conveying pipe is connected through and into the top surface (330) of the air guide device, the discharge port (111) of the first material conveying pipe is provided with a first air inlet and air guide slope (111a).

9. The pneumatic compensation device for pneumatic conveying of materials according to claim 8, characterized in that: The second material conveying pipe feed port (121) is provided with a second air intake guide slope (121a) corresponding to the first air intake guide slope (111a).

10. The pneumatic compensation device for pneumatic conveying of materials according to claim 1, characterized in that: The pneumatic compensation device for pneumatic material conveying further comprises a feed valve (410) and / or a discharge valve (420); the feed valve (410) is used to connect the feed port (112) of the first material conveying pipe with the input end pipeline; the discharge valve (420) is used to connect the discharge port (122) of the second material conveying pipe with the output end pipeline.

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