A raw material extraction device and system integrated with a gas collection function

Abstract

The utility model discloses a raw material extraction device and system of integrated gas collection function, including connecting pipe, extraction pipe and negative pressure device, the connecting pipe includes the first through pipe and second through pipe of intercommunication, the first through pipe includes suction port and discharge port, and the suction port is sleeved in the bucket mouth of raw material bucket, the discharge port forms and draws the pipe mouth, and one end of extraction pipe passes through the pipe mouth and extends to the raw material bucket, and the other end is sealedly connected with extraction equipment, the second through pipe communicates with negative pressure device, and the second through pipe can form negative pressure environment to draw the VOC gas of entering the connecting pipe, and the raw material in the raw material bucket is extracted through extraction pipe and is collected VOC gas that volatilizes in the extraction process through negative pressure device.

Description

Technical Field

[0001] This utility model relates to the field of gas collection devices. More specifically, it relates to a raw material extraction device and system that integrates gas collection functions. Background Technology

[0002] In the production and feeding process of chemical, coating, and adhesive industries, the feeding port of a 200L raw material barrel cannot be sealed, which can lead to the leakage of VOC gas and affect the concentration in the environment. The existing solution is to place a universal suction arm above the working surface to collect the leaked VOC gas. However, the structure of this VOC collection device is complicated and the problem of large-scale leakage of VOC gas still exists. Utility Model Content

[0003] One objective of this invention is to provide a raw material extraction device with integrated gas collection function. This device extracts raw materials from a raw material container via an extraction tube and collects the volatilized VOC gases during the extraction process using a negative pressure device. It has a simple structure and improves the VOC gas collection efficiency. Another objective of this invention is to provide a raw material extraction system with integrated gas collection function.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: This application provides a raw material extraction device with integrated gas collection function, including a connecting pipe, an extraction pipe and a negative pressure device; The connecting pipe includes a first through pipe and a second through pipe that are connected. The first through pipe includes a suction port and a discharge port. The suction port is fitted onto the opening of the raw material barrel. The discharge port is formed with a suction pipe opening. One end of the suction pipe passes through the suction pipe opening and extends into the raw material barrel, while the other end is sealed and connected to the extraction equipment. The second conduit is connected to the negative pressure device, and a negative pressure environment can be formed in the second conduit to extract VOC gas entering the connecting pipe.

[0005] Optionally, the area of ​​the first through pipe corresponding to the suction port is formed as an inverted cone shape, and the radial dimension of the suction port is smaller than the radial dimension of the first through pipe.

[0006] Optionally, the second conduit includes a connecting section, a buffer section, and a suction section; The connecting section is connected to the first through pipe; The buffer section is arc-shaped and connects the connecting section and the absorption section; The suction section is sealed to the negative pressure device.

[0007] Optionally, the lowest point of the buffer segment is lower than the lowest point of the connection segment.

[0008] Optionally, a locking component is also included, disposed on the outer surface of the connecting tube near the discharge port, for fixing the extraction tube.

[0009] Optionally, the locking assembly includes manually operated wing bolts and arc-shaped pressure blocks evenly distributed along the circumference of the connecting pipe. Tightening the wing bolts drives the arc-shaped pressure blocks to press the extraction pipe to fix the relative position of the extraction pipe and the connecting pipe.

[0010] Optionally, the connecting pipe is provided with an elastic sealing ring in the area corresponding to the extraction port, and the extraction pipe extends into the raw material barrel through the sealing port in the center of the discharge port and the elastic sealing ring.

[0011] Optionally, a connection port is formed on the first pipe, and the second pipe communicates with the first pipe through the connection port. The height of the connection port is higher than the height of the opening of the raw material barrel when the connection pipe is fitted onto the opening of the barrel.

[0012] Optionally, the negative pressure device includes a negative pressure fan and an exhaust duct, one end of which is connected to the second through pipe and the other end of which is connected to the negative pressure fan.

[0013] This application also provides a raw material extraction system with integrated gas collection function, including a raw material extraction device with integrated gas collection function, a raw material tank, and an extraction equipment.

[0014] The beneficial effects of this utility model are as follows: The purpose of this utility model is to provide a raw material extraction device with integrated gas collection function. The first and second connecting pipes are used to construct the passage for transporting raw materials and VOC gas respectively. When the extraction device is started to extract raw materials, the negative pressure device simultaneously forms a stable negative pressure in the second connecting pipe to collect the VOC gas volatilized in the raw material tank. The structure is simple and can improve the VOC gas collection effect. Attached Figure Description

[0015] Figure 1 This diagram shows the structure of a raw material extraction device with integrated gas collection function according to one embodiment of the present invention. Figure 2 This invention presents a flow chart of a raw material extraction device with integrated gas collection function according to one embodiment of the present invention. Figure label: 1. Raw material extraction device; 10. Connecting pipe; 20. First through pipe; 21. Suction port; 22. Discharge port; 23. Extraction pipe port; 24. Connection port; 30. Second through pipe; 31. Connecting section; 32. Buffer section; 33. Suction section; 40. Extraction pipe; 50. Negative pressure device; 51. Exhaust pipe; 60. Locking assembly; 61. Wing bolt; 70. Extraction equipment; 80. Raw material barrel; 90. Fixed cylinder. Detailed Implementation

[0016] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0017] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] The preferred embodiments of this utility model will now be described with reference to the accompanying drawings.

[0020] like Figures 1-2 As shown, this embodiment provides a raw material extraction device 1 with integrated gas collection function, including a connecting pipe 10, an extraction pipe 40, and a negative pressure device 50. The connecting pipe 10 includes a first through pipe 20 and a second through pipe 30 that communicate with each other. The first through pipe 20 includes a suction port 21 and a discharge port 22, with the suction port 21 fitted onto the opening of the raw material container 80. The discharge port 22 forms an extraction port 23, with one end of the extraction pipe 40 passing through the extraction port 23 and extending into the raw material container 80, and the other end sealed to the extraction device 70. The second through pipe 30 communicates with the negative pressure device 50, and a negative pressure environment can be formed in the second through pipe 30 to extract VOC gas entering the connecting pipe 10.

[0021] Specifically, the raw material extraction device 1 with integrated gas collection function extracts raw materials from the raw material barrel 80 through the extraction pipe 40 and collects the VOC gas volatilized during the extraction process through the negative pressure device 50.

[0022] like Figure 1 As shown, the connecting pipe 10 consists of a first through pipe 20 and a second through pipe 30, which are internally connected. One end of the first through pipe 20 is a suction port 21, which is fitted onto the opening of the raw material barrel 80, and the other end is a discharge port 22. The discharge port 22 has a circular structure with an inner ring forming a suction port 23. One end of the extraction pipe 40 passes through the suction port 23 and extends through the suction port 21 and is inserted into the raw material barrel 80. The other end is sealed to the diaphragm pump of the extraction device 70 for extracting raw materials. The negative pressure device 50 is connected to the second through pipe 30 of the connecting pipe. After the negative pressure device 50 is activated, it will create a negative pressure environment in the second through pipe 30, thereby making the pressure in the connecting pipe lower than the external pressure. This pressure difference draws the VOC gas volatilized during the extraction of raw materials into the connecting pipe 10, and then introduces it into the negative pressure device 50 through the second through pipe 30. The negative pressure device 50 is subsequently connected to a treatment device to treat the VOC gas.

[0023] In a specific example, the suction port 21 of the connecting pipe 10 is fitted onto the opening of the raw material barrel 80, and the extraction pipe 40 extends into the barrel through the extraction port 23. The other end is connected to the fixed cylinder 90 through the diaphragm pump. The diaphragm pump is started to extract the raw material through the extraction pipe 40. At the same time, the exhaust system of the negative pressure device 50 is started. When the raw material is extracted, the negative pressure in the second pipe 30 draws the VOC gas volatilized in the raw material barrel 80 into the connecting pipe 10 and then into the negative pressure device 50.

[0024] In alternative implementations, such as Figure 1As shown, the area of ​​the first through pipe 20 corresponding to the suction port 21 is formed into an inverted cone shape, and the radial dimension of the suction port 21 is smaller than the radial dimension of the first through pipe 20.

[0025] Specifically, the radial dimension of the first conical pipe 20 gradually decreases towards the suction port 21, forming an inverted cone shape. This inverted cone structure allows the suction port 21 to be fitted onto the outside of the raw material container 80. The inner wall of the inverted cone structure is an inclined guide surface. When the VOC gas volatilized inside the raw material container 80 rises, it converges along the cone surface into the first conical pipe 20, and then enters the second conical pipe 30 through the connection port 24 on the first conical pipe 20. Simultaneously, the negative pressure created by the negative pressure device 50 within the second conical pipe 30 exerts an adsorption force on the VOC gas, rapidly collecting it.

[0026] In alternative implementations, such as Figure 1 As shown, the second conduit 30 includes a connecting section 31, a buffer section 32, and a suction section 33; the connecting section 31 is connected to the first conduit 20; the buffer section 32 is arc-shaped and connects the connecting section 31 and the suction section 33; the suction section 33 is sealed to the negative pressure device 50.

[0027] Specifically, one end of the connecting section 31 is sealed to the connecting port 24 on the first through pipe 20. The axis of the connecting section 31 is at an angle of 30° to 60° to the first through pipe 20. The buffer section 32 has a smooth arc-shaped structure, with both ends sealed to the other end of the connecting section 31 and one end of the suction end, forming a buffer channel for guiding VOC gas flow and preventing turbulence or eddies from forming within the VOC gas channel. The end of the suction section 33 away from the buffer section 32 is sealed to the negative pressure device 50. The axis of the suction section 33 is aligned with the air inlet of the negative pressure device 50. The radial dimension of the suction section 33 gradually increases towards the negative pressure device 50, forming a cone shape.

[0028] In alternative implementations, such as Figure 1 As shown, the lowest point of the buffer section 32 is lower than the lowest point of the connecting section 31, so as to form an airflow buffer zone in the buffer section 32 to prevent the airflow with negative pressure from drawing in impurities. The liquid or gaseous impurities that may exist in the absorbed VOC gas will remain in the buffer section 32 due to the position of the buffer section 32, and will not affect the raw materials in the raw material tank 80.

[0029] In alternative implementations, such as Figure 1 As shown, it also includes a locking component 60, which is disposed on the outer surface of the connecting pipe 10 near the discharge port 22, for fixing the extraction pipe 40.

[0030] Specifically, the locking assembly 60 is detachably mounted on the outer surface of the connecting pipe 10 near the outlet 22. It is used to fix the relative position of the extraction pipe 40 and the connecting pipe 10. During material extraction, the suction power of the diaphragm pump causes the extraction pipe 40 to experience axial tension. After the locking assembly 60 applies radial clamping force to fix the extraction pipe 40, it prevents it from axially shifting along the extraction port 23, thus ensuring a tight connection between the extraction pipe 40 and the connecting pipe 10. The detachable design of the locking assembly 60 allows it to accommodate extraction pipes 40 of different specifications without requiring replacement of the connecting pipe 10. During operation, the extraction pipe 40 can be quickly fixed or removed using the locking assembly 60.

[0031] In alternative implementations, such as Figures 1-2 As shown, the locking assembly 60 includes manually operated wing bolts 61 and arc-shaped pressure blocks (not shown in the figure) evenly distributed around the circumference of the connecting tube 10. Tightening the wing bolts 61 drives the arc-shaped pressure blocks to press the extraction tube 40 to fix the relative position of the extraction tube 40 and the connecting tube 10.

[0032] In the above scheme, after the extraction tube 40 passes through the extraction port 23 of the connecting tube 10 and the depth is adjusted, each wing bolt 61 is manually tightened. The screw is pushed axially along the threaded mounting seat, driving the arc-shaped pressure block to move radially towards the central axis of the extraction tube 40 until the inner side wall of the arc-shaped pressure block is tightly attached to the outer wall of the extraction tube 40. By applying clamping force synchronously through multiple circumferentially distributed arc-shaped pressure blocks, the relative position of the extraction tube 40 and the connecting tube 10 is fixed. When it is necessary to disassemble the extraction tube 40, the wing bolt 61 is loosened in the opposite direction, the arc-shaped pressure block is disengaged from the extraction tube 40, and the extraction tube 40 can be removed.

[0033] In alternative implementations, such as Figure 1 As shown, the connecting pipe 10 is provided with an elastic sealing ring (not shown in the figure) in the area corresponding to the extraction port 23. The extraction pipe 40 extends into the raw material tank 80 through the sealing port in the center of the discharge port 22 and the elastic sealing ring.

[0034] In the above scheme, the elastic sealing ring is embedded and fixed to the inner wall of the extraction port 23 of the connecting pipe 10. When the extraction pipe 40 is installed and locked by the locking component 60, the elastic sealing ring forms a tight fit between the inner wall of the extraction port 23 and the outer surface of the extraction pipe 40, thereby achieving a sealed connection between the connecting pipe 10 and the extraction pipe 40 and preventing the leakage of VOC gas.

[0035] In alternative implementations, such as Figure 1 As shown, a connection port 24 is formed on the first pipe 20, and the second pipe 30 is connected to the first pipe through the connection port 24. The height of the connection port 24 is higher than the height of the opening of the raw material barrel 80 when the connection pipe 10 is sleeved on the opening of the barrel.

[0036] In specific examples, such as Figure 2 As shown, the raw material barrel 80 is a 200L standard iron barrel. The main body of the first pipe 20 is a cylindrical structure. The maximum radial dimension of the inverted conical suction port 21 is the same as that of the main body of the first pipe 20. After being fitted onto the outside of the opening of the raw material barrel 80, the height of the connection port 24 is higher than the height of the opening of the raw material barrel 80 when measured with the ground as the reference plane.

[0037] In alternative implementations, such as Figure 2 As shown, the negative pressure device 50 includes a negative pressure fan (not shown in the figure) and an exhaust pipe 51. One end of the exhaust pipe 51 is connected to the second pipe 30, and the other end is connected to the negative pressure fan.

[0038] In the above scheme, the negative pressure fan provides stable negative pressure power. One end of the exhaust pipe 51 is sealed and fixed to the suction section 33 of the second pipe 30, and the other end is sealed and connected to the air inlet of the negative pressure fan. The pipe diameter of the exhaust pipe 51 is adapted to the pipe diameter of the suction section 33 of the second pipe 30. The negative pressure fan can adjust the negative pressure intensity according to the amount of VOC gas volatilization in the raw material barrel 80.

[0039] Another aspect of this embodiment provides a raw material extraction system with integrated gas collection function, including a raw material extraction device 1 with integrated gas collection function, a raw material tank 80, and an extraction device 70.

[0040] Since the principle by which this system solves the problem is similar to that of the above-mentioned devices, the implementation of this system can be found in the implementation of the devices, and will not be repeated here.

[0041] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A raw material extraction device integrating gas collection function, characterized in that, Includes connecting pipes, extraction pipes, and negative pressure devices; The connecting pipe includes a first through pipe and a second through pipe that are connected. The first through pipe includes a suction port and a discharge port. The suction port is fitted onto the opening of the raw material barrel. The discharge port is formed with a suction pipe opening. One end of the suction pipe passes through the suction pipe opening and extends into the raw material barrel, while the other end is sealed and connected to the extraction equipment. The second conduit is connected to the negative pressure device, and a negative pressure environment can be formed in the second conduit to extract VOC gas entering the connecting pipe.

2. The raw material extraction device with integrated gas collection function according to claim 1, characterized in that, The area of ​​the first through pipe corresponding to the suction port is formed in an inverted cone shape, and the radial dimension of the suction port is smaller than the radial dimension of the first through pipe.

3. The raw material extraction device with integrated gas collection function according to claim 1, characterized in that, The second conduit includes a connecting section, a buffer section, and a suction section; The connecting section is connected to the first through pipe; The buffer section is arc-shaped and connects the connecting section and the absorption section; The suction section is sealed to the negative pressure device.

4. The raw material extraction device with integrated gas collection function according to claim 3, characterized in that, The lowest point of the buffer segment is lower than the lowest point of the connecting segment.

5. The raw material extraction device with integrated gas collection function according to claim 1, characterized in that, It also includes a locking component, which is disposed on the outer surface of the connecting pipe near the discharge port, for fixing the extraction pipe.

6. The raw material extraction device with integrated gas collection function according to claim 5, characterized in that, The locking assembly includes manually operated wing bolts and arc-shaped pressure blocks evenly distributed along the circumference of the connecting pipe. Tightening the wing bolts drives the arc-shaped pressure blocks to press the extraction pipe to fix the relative position of the extraction pipe and the connecting pipe.

7. The raw material extraction device with integrated gas collection function according to claim 1, characterized in that, The connecting pipe is provided with an elastic sealing ring in the area corresponding to the extraction port, and the extraction pipe extends into the raw material barrel through the sealing opening in the center of the discharge port and the elastic sealing ring.

8. The raw material extraction device with integrated gas collection function according to claim 1, characterized in that, The first pipe has a connection port, and the second pipe communicates with the first pipe through the connection port. The height of the connection port is higher than the height of the opening of the raw material barrel when the connection pipe is fitted onto the opening of the barrel.

9. The raw material extraction device with integrated gas collection function according to claim 1, characterized in that, The negative pressure device includes a negative pressure fan and an exhaust duct. One end of the exhaust duct is connected to the second pipe, and the other end is connected to the negative pressure fan.

10. A raw material extraction system with integrated gas collection function, characterized in that, Includes a raw material extraction device, raw material tank, and extraction equipment with integrated gas collection function as described in any one of claims 1-9.

Images