Positive pressure feeding system

Abstract

The utility model provides a positive pressure feeding system which comprises a feeding pipeline, the feeding pipeline comprises a feeding section, a vertical conveying section and a discharging section which are communicated in sequence, an air inlet is formed in the front end of the feeding section, and a feeding port is formed in the top of the rear portion of the air inlet; an air outlet of the positive pressure conveying fan is communicated with the air inlet of the feeding section, and the air inlet of the feeding section is provided with an air valve which is located between the air inlet and the feeding port. The advantage that the occupied space is small is achieved through the compact design of the pipeline, meanwhile, efficient material conveying and pipeline cleaning are guaranteed through the combination of the negative pressure cleaning system, the system forms a negative pressure environment through the closed design and the adjustable valve, effective cleaning of the pipeline is achieved, and attached peanut skin scraps and impurities are removed; smooth conveying of materials can be promoted through vibration, the retention phenomenon is avoided, stable operation of the system is ensured, and meanwhile impurities attached to the inner wall of the pipeline can be cleaned.

Description

Technical Field

[0001] This utility model relates to the field of processing and conveying, and in particular to a positive pressure feeding system. Background Technology

[0002] In the agricultural product processing sector, peanuts, as an important economic crop, require high integrity and efficiency in their conveying process. Positive pressure feeding systems are widely used in the production and processing of granular agricultural products such as peanuts due to their high conveying speed, low material breakage rate, and adaptability to long-distance conveying. However, while traditional positive pressure feeding systems can effectively achieve long-distance and high-lift conveying, their complex structure, large space occupation, and the inevitable dust generation during conveying make cleaning and maintenance difficult.

[0003] In existing technologies, the layout of system pipelines, collection bins, and separation devices is usually quite dispersed, occupying a lot of space and hindering the optimization of the production site layout. In addition, the conveying pipelines often require frequent cleaning due to material accumulation and dust deposition, but existing cleaning methods mostly rely on manual labor, which is time-consuming and labor-intensive, and it is difficult to completely eliminate hidden dangers, affecting the stable operation of the system. Utility Model Content

[0004] The main purpose of this invention is to provide a positive pressure feeding system that solves the problems of large footprint and difficult pipe cleaning.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a positive pressure feeding system, including...

[0006] The feeding pipeline includes a feeding section, a vertical conveying section and a discharging section connected in sequence. An air inlet is provided at the front end of the feeding section, and a feeding port is provided at the top behind the air inlet.

[0007] The positive pressure conveying fan has its outlet connected to the inlet of the feeding section, and the inlet of the feeding section is equipped with an air valve, which is located between the air inlet and the feeding inlet.

[0008] The air blower valve has its discharge end connected to the feed inlet of the feed section, and a sliding valve is installed between the two.

[0009] A cyclone separator, the inlet of which is connected to the outlet at the end of the discharge section;

[0010] The negative pressure cleaning device includes a cleaning pipe that is inclined and whose end is connected to the feeding section. The other end of the cleaning pipe is connected to a dust collection box. The dust collection box is provided with an exhaust port on one side corresponding to the cleaning pipe. A filter plate is provided in the exhaust port. A negative pressure cleaning fan is installed on the outside of the exhaust port.

[0011] In a preferred embodiment, a collection box is also included, with a receiving port on its top, on which a cyclone separator is installed, and its discharge port extends through the receiving port into the collection box.

[0012] In the preferred embodiment, support frames are provided on both sides of the dust collection box to support it above the feeding section.

[0013] In the preferred embodiment, the bottom of the dust collection box is hinged with an opening and closing door panel, and a switch lock is installed on the opening and closing door panel.

[0014] In the preferred embodiment, a conical cylinder is installed to connect the dust collection box and the cleaning pipe.

[0015] In the preferred embodiment, sponge protective pads are installed at the corners between the feeding section, the vertical conveying section, and the discharge section.

[0016] In the preferred embodiment, a low support frame and a high support frame are provided to support the feeding section and the discharging section, respectively. A horizontal support frame is provided on the side of the high support frame near the vertical conveying section to support the vertical conveying section. Pipe clamps are provided at the ends of the low support frame, the high support frame and the horizontal support frame.

[0017] In the preferred embodiment, a striking mechanism for striking the vertical conveyor section is provided on the horizontal support frame.

[0018] In the preferred embodiment, the horizontal support frame consists of two symmetrically arranged tripods;

[0019] The striking mechanism includes a support plate positioned between two tripods. A drive motor is located at the bottom of the support plate, and an eccentric wheel is rotatably connected to the output end of the drive motor through the support plate. A striking rod is located at the top of the support plate, with its middle section rotatably positioned at the front edge of the support plate. A reset mechanism is also located at the top of the support plate, which abuts against the rear end of the striking rod. The front end of the striking rod can collide with the vertical conveying section, and the rear end remains in contact with the eccentric wheel under the action of the reset mechanism.

[0020] In a preferred embodiment, the reset mechanism includes an outer sleeve disposed on the top of the support plate, the outer sleeve having a convex groove, a convex abutment disposed in the convex groove, a mounting groove communicating with the convex groove in the convex abutment, and a telescopic spring disposed between the mounting groove and the convex groove.

[0021] This utility model provides a positive pressure feeding system, which achieves the advantage of small footprint through the compact design of the pipeline. At the same time, it is combined with a negative pressure cleaning system to ensure efficient material conveying and pipeline cleaning. The system creates a negative pressure environment through a closed design and adjustable valves, which can effectively clean the pipeline and remove attached peanut skins and impurities. In addition, by setting up a knocking mechanism, vibration can be used to promote the smooth conveying of materials, avoid stagnation, ensure stable system operation, and also clean impurities attached to the inner wall of the pipeline. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0023] Figure 1 This is an overall structural diagram of the present invention;

[0024] Figure 2 This is a structural diagram of the negative pressure cleaning device and the feeding pipe connection of this utility model;

[0025] Figure 3 This is a cross-sectional view of the connection structure between the negative pressure cleaning device and the feeding section of this utility model;

[0026] Figure 4 This is an exploded structural diagram of the negative pressure cleaning device of this utility model;

[0027] Figure 5 This is a utility model Figure 4 Another perspective on the structure;

[0028] Figure 6 This is a structural diagram of the striking mechanism of this utility model;

[0029] Figure 7 This is a top view of the striking mechanism of this utility model;

[0030] Figure 8 This is an exploded structural diagram of the striking mechanism of this utility model;

[0031] Figure 9 This is a cross-sectional view of the reset mechanism of this utility model;

[0032] In the diagram: 1. Positive pressure conveying fan; 2. Feeding pipe; 20. Feeding section; 21. Vertical conveying section; 22. Discharge section; 3. Cyclone separator; 4. Collection box; 5. Shut-off valve; 6. Slide valve; 7. Air valve; 8. Cleaning pipe; 9. Negative pressure cleaning device; 900. Dust collection box; 901. Support frame; 902. Conical cylinder; 903. Filter plate; 904. Negative pressure cleaning fan; 905. Opening and closing door panel; 10. Low support frame; 11. High support frame; 12. Horizontal support frame; 120. Triangular frame; 13. Striking mechanism; 13. Support plate; 130. Drive motor; 131. Eccentric wheel; 132. Striking rod; 133. Reset mechanism; 134. Outer sleeve; 1340. Convex groove; 1341. Convex contact part; 1342. Mounting groove; 1343. Telescopic spring; 1344. Detailed Implementation

[0033] Example 1

[0034] like Figure 1-5 As shown, a positive pressure feeding system includes a feeding pipe 2, a positive pressure conveying fan 1, a shut-off valve 5, a cyclone separator 3, and a negative pressure cleaning device 9. The feeding pipe 2 is composed of a feeding section 20, a vertical conveying section 21, and a discharging section 22 connected in sequence. In this embodiment, both the feeding section 20 and the discharging section 22 are arranged horizontally. This design can utilize the "Z" shape to reduce the overall space occupancy of the positive pressure feeding system. In addition, an air inlet is provided at the front end of the feeding section 20, and a feeding port is provided at the top behind the air inlet.

[0035] The outlet of the positive pressure conveying fan 1 is connected to the inlet of the feeding section 20 to provide positive pressure airflow to drive the peanut conveying. The inlet of the feeding section 20 is equipped with an air valve 7, which is located between the air inlet and the feed inlet. The air valve 7 can be used to adjust the air flow, ensure the conveying stability and avoid the airflow disturbing the peanut feeding process. At the same time, the air inlet can be completely closed.

[0036] The discharge end of the air shut-off valve 5 is connected to the inlet of the feeding section 20, and a sliding plate valve 6 is installed between the two. The air shut-off valve 5 can ensure that peanuts enter the pipeline evenly without affecting the positive pressure conveying. In addition, the sliding plate valve 6 can effectively control the feeding channel and can close the feeding port by closing itself.

[0037] The inlet of the cyclone separator 3 is connected to the outlet at the end of the outlet section 22. The cyclone separator 3 is used to separate peanuts and convey airflow.

[0038] The negative pressure cleaning device 9 includes a cleaning pipe 8, a dust collection box 900, and a negative pressure cleaning fan 904. The cleaning pipe 8 is arranged at an inclination, with one end connected to the feeding section 20 and the other end connected to the dust collection box 900. An exhaust port is provided on one side of the dust collection box 900, and a filter plate 903 is installed inside the exhaust port to filter dust and impurities. The negative pressure cleaning fan 904 is connected to the outside of the exhaust port.

[0039] This design creates a stable negative pressure environment in the feeding pipe 2 by sealing the air outlet at the top of the cyclone separator 3, the air valve 7, and the sliding plate valve 6. Then, the negative pressure cleaning fan 904 is activated, allowing air to enter the system from the discharge port at the bottom of the cyclone separator 3, achieving negative pressure cleaning of the entire feeding pipe. During the cleaning process, impurities and dust in the pipe are carried into the dust collection box 900 by the negative pressure airflow, effectively collected and stored, ensuring pipe cleanliness.

[0040] It should be noted that the cleaning pipe 8 is inclined towards the air inlet of the feeding section 20, and the two form a "Y" shape. This design can effectively avoid affecting the normal operation of positive pressure conveying. The air outlet of the cyclone separator 3 is equipped with a one-way check valve, a pneumatic butterfly valve or an electric valve. In addition, in this embodiment, the air valve 7, the slide valve 6 and the cyclone separator 3 mentioned are all conventional existing technologies, so they will not be described in detail here.

[0041] In a preferred embodiment, a collection box 4 is also included, with a receiving port on top for receiving peanuts separated by the cyclone separator 3. The cyclone separator 3 is installed on the collection box 4, and its outlet extends through the receiving port into the collection box 4.

[0042] It should be noted that the collection box 4 is equipped with an air vent that does not affect the air intake required during negative pressure cleaning, so as to ensure that air can enter the system smoothly during the cleaning process.

[0043] In the preferred embodiment, the dust collection box 900 is provided with support frames 901 on both sides to support it above the feeding section 20.

[0044] In the preferred embodiment, the bottom of the dust collection box 900 is hinged with an opening and closing door 905, and a switch lock is provided on the opening and closing door 905, so as to facilitate the inspection of its interior by opening the opening and closing door 905. The switch lock is used for locking when closed.

[0045] It should be noted that the switch lock is a conventional existing technology and therefore will not be described in detail here.

[0046] In the preferred embodiment, a conical cylinder 902 is provided between the dust collection box 900 and the cleaning pipe 8 to improve cleaning efficiency.

[0047] In the preferred embodiment, sponge protective pads are installed at the corners between the feeding section 20, the vertical conveying section 21, and the discharging section 22 to prevent damage to the peanuts during the conveying process due to collisions with the corners.

[0048] Example 2

[0049] Further explanation in conjunction with Example 1, such as Figure 1-2 As shown in Figure 6-9, to ensure equipment stability and ease of maintenance, the structure also includes a low support frame 10 and a high support frame 11 for supporting the feeding section 20 and the discharging section 22, respectively. A horizontal support frame 12 is provided on the side of the high support frame 11 near the vertical conveying section 21 for supporting the vertical conveying section 21. Pipe clamps are provided at the ends of the low support frame 10, the high support frame 11 and the horizontal support frame 12.

[0050] Furthermore, the horizontal support frame 12 is equipped with a striking mechanism 13 for striking the vertical conveying section 21. By striking the longest vertical conveying section 21 through the striking mechanism 13, peanut skins and impurities that may be attached to the inner wall of the pipe can be removed by the vibration generated by the striking. At the same time, when the conveying is stuck, the vibration of the striking can reduce the stuck phenomenon and ensure the normal operation of the system.

[0051] The horizontal support frame 12 consists of two symmetrically arranged tripods 120. The design of the tripods 120 can effectively improve the stability of the support, and the gap between the two is convenient for installing the striking mechanism 13.

[0052] The striking mechanism 13 includes a support plate 130 disposed between two tripods 120. A drive motor 131 is disposed at the bottom of the support plate 130. The output end of the drive motor 131 rotatably passes through the support plate 130 and is connected to an eccentric wheel 132. A striking rod 133 is disposed at the top of the support plate 130. The middle part of the striking rod 133 is rotatably disposed at the front edge of the support plate 130. A reset mechanism 134 is also disposed at the top of the support plate 130, which abuts against the rear end of the striking rod 133. The front end of the striking rod 133 can collide with the vertical conveying section 21, and the rear end keeps in contact with the eccentric wheel 132 under the action of the reset mechanism 134. The striking rod 133 is located between the reset mechanism 134 and the eccentric wheel 132.

[0053] It should be noted that the support plate 130 is equipped with a bearing for the output end of the drive motor 131 and the rotating striking rod 133, and the bottom of the striking rod 133 is provided with a rotating shaft passing through the bearing.

[0054] This design allows the striking rod 133 to repeatedly strike the vertical conveyor section 21 under the drive of the eccentric wheel.

[0055] In a preferred embodiment, the reset mechanism 134 includes an outer sleeve 1340 disposed on the top of the support plate 130. The outer sleeve 1340 is provided with a convex groove 1341. A convex abutment 1342 is provided in the convex groove 1341 in a telescoping fit. Through the fit between the shapes of the convex groove 1341 and the convex abutment 1342, the convex abutment 1342 can be extended and retracted within a limited range. The convex abutment 1342 is provided with a mounting groove 1343 that communicates with the convex groove 1341. A telescopic spring 1344 is provided between the mounting groove 1343 and the convex groove 1341, thereby achieving the reset effect by utilizing the telescopic property of the telescopic spring 1344.

[0056] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A positive pressure feeding system, characterized in that: include The feeding pipe (2) includes a feeding section (20), a vertical conveying section (21) and a discharging section (22) connected in sequence. An air inlet is provided at the front end of the feeding section (20), and a feeding port is provided at the top behind the air inlet. The positive pressure conveying fan (1) has its outlet connected to the inlet of the feeding section (20), and the inlet of the feeding section (20) is equipped with an air valve (7), which is located between the inlet and the feed inlet. The air blower valve (5) is connected to the feed port of the feed section (20) at its discharge end, and a sliding plate valve (6) is provided between the two. Cyclone separator (3), whose inlet is connected to the outlet at the end of the outlet section (22); The negative pressure cleaning device (9) includes a cleaning pipe (8) that is inclined and whose end is connected to the feeding section (20). The other end of the cleaning pipe (8) is connected to a dust collection box (900). The dust collection box (900) is provided with an exhaust port on one side corresponding to the cleaning pipe (8). A filter plate (903) is provided in the exhaust port. A negative pressure cleaning fan (904) is installed on the outside of the exhaust port.

2. The positive pressure feeding system according to claim 1, characterized in that: It also includes a collection box (4), which has a receiving port on its top, on which a cyclone separator (3) is installed, and its outlet extends through the receiving port into the collection box (4).

3. The positive pressure feeding system according to claim 1, characterized in that: The dust collection box (900) is provided with support frames (901) on both sides to support it above the feeding section (20).

4. The positive pressure feeding system according to claim 1, characterized in that: The bottom of the dust collection box (900) is hinged with an opening and closing door (905), and a switch lock is provided on the opening and closing door (905).

5. The positive pressure feeding system according to claim 1, characterized in that: A conical tube (902) is provided between the dust collection box (900) and the cleaning pipe (8).

6. The positive pressure feeding system according to claim 1, characterized in that: Sponge protective pads are installed at the corners between the feeding section (20), the vertical conveying section (21), and the discharge section (22).

7. The positive pressure feeding system according to claim 1, characterized in that: It includes a low support frame (10) and a high support frame (11) for supporting the feeding section (20) and the discharging section (22) respectively. A horizontal support frame (12) is provided on the side of the high support frame (11) near the vertical conveying section (21) for supporting the vertical conveying section (21). Pipe clamps are provided at the ends of the low support frame (10), the high support frame (11) and the horizontal support frame (12).

8. The positive pressure feeding system according to claim 7, characterized in that: A striking mechanism (13) for striking the vertical conveyor section (21) is provided on the horizontal support frame (12).

9. The positive pressure feeding system according to claim 8, characterized in that: The horizontal support frame (12) consists of two symmetrically arranged tripods (120); The striking mechanism (13) includes a support plate (130) disposed between two tripods (120). A drive motor (131) is disposed at the bottom of the support plate (130). The output end of the drive motor (131) is rotatably connected to an eccentric wheel (132) through the support plate (130). A striking rod (133) is disposed at the top of the support plate (130). The middle part of the striking rod (133) is rotatably disposed at the front edge of the support plate (130). A reset mechanism (134) is also disposed at the top of the support plate (130) that abuts against the rear end of the striking rod (133). The front end of the striking rod (133) can collide with the vertical conveying section (21), and the rear end is kept in contact with the eccentric wheel (132) under the action of the reset mechanism (134).

10. A positive pressure feeding system according to claim 9, characterized in that: The reset mechanism (134) includes an outer sleeve (1340) disposed on the top of the support plate (130). A convex groove (1341) is provided on the outer sleeve (1340). A convex abutment (1342) is provided in the convex groove (1341) in a telescopic fit. A mounting groove (1343) communicating with the convex groove (1341) is provided in the convex abutment (1342). A telescopic spring (1344) is provided between the mounting groove (1343) and the convex groove (1341).

Images