Rotary discharge valve for pipe chain conveyor

Abstract

The utility model discloses a kind of rotary discharge valves for pipe chain conveyors, comprising: valve housing, the lower end of valve housing is open to form discharge port;Rotary discharge pipeline, rotatably supported in valve housing along left-right direction, the middle segment circumference wall of rotary discharge pipeline is equipped with discharge nipple, and the outer periphery of one end of rotary discharge pipeline is fixed with large gear;Drive device, including fixed in the outer wall of valve housing electric actuator, driven shaft driven by electric actuator and pinion fixed on driven shaft, pinion is engaged with large gear;Arc baffle, fixed in valve housing and located above discharge nipple, when discharge nipple vertically upwards, arc baffle covers discharge nipple port;End pipe, respectively sealedly connected in both ends of rotary discharge pipeline, and with rotary discharge pipeline jointly form the conveying channel for ring chain and disc piece to pass through.This rotary discharge valve can ensure no leakage when valve is closed, no residue after discharging, and reduce the precision requirement of manufacturing and processing.

Description

Technical Field

[0001] This utility model relates to a rotary discharge valve, and more particularly to a rotary discharge valve for a tubular chain conveyor, belonging to the technical field of brewing equipment. Background Technology

[0002] As living standards continue to improve, people have increasingly higher requirements for the quality of baijiu (Chinese liquor). The quality of baijiu is often closely related to the control of its production process, especially the precise control of raw materials. In the production process of baijiu, different raw materials are often transported to different silos using the same tubular chain conveyor. To ensure the quality of baijiu, it is often necessary to prevent the raw materials from mixing in different silos and to ensure that the unloading is clean and without residue. This places higher demands on the unloading valve of the tubular chain conveyor.

[0003] Existing tubular chain conveyor discharge valves typically use pneumatic slide gate valves. This type of valve requires a short connector to be connected to the casing of the tubular chain conveyor before the slide gate valve can be installed. This results in some material remaining inside the short connector after the slide gate valve is closed, which may lead to mold growth over time.

[0004] To ensure that the pneumatic flap valve leaves no residue during unloading, an arc plate needs to be embedded in the door panel and precisely aligned with the unloading port. Achieving precise alignment every time the door panel closes places high demands on manufacturing and processing. Even if precise alignment is achieved, material can easily get stuck between the door panel and the housing, leading to incomplete closure and leakage. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, and such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] In view of the problems existing in the above and / or prior art, this utility model is proposed.

[0007] The purpose of this invention is to overcome the problem of material residue during unloading in the prior art and to provide a rotary unloading valve for tubular chain conveyors that can ensure no leakage when the valve is closed and no residue after unloading without the need for precise alignment between the gate plate and the unloading port, while also reducing the precision requirements for manufacturing and processing.

[0008] To solve the above technical problems, this utility model provides a rotary discharge valve for a tubular chain conveyor, comprising: Valve housing, the lower end of which is open to form a discharge port; A rotating discharge pipe is rotatably supported inside the valve body in the left and right directions. A discharge section is provided on the circumferential wall of the middle section of the rotating discharge pipe, and a large gear is fixedly provided on the outer circumference of one end of the rotating discharge pipe. The drive device includes an electric actuator fixed to the outer wall of the valve housing, a drive shaft driven by the electric actuator, and a pinion fixed to the drive shaft, the pinion meshing with the large gear; An arc-shaped baffle is fixed inside the valve body and located above the discharge section. When the discharge section is vertically upward, the arc-shaped baffle covers the port of the discharge section. The end pipes are respectively sealed and connected to both ends of the rotary discharge pipe, and together with the rotary discharge pipe, they form a conveying channel for the ring chain and discs to pass through.

[0009] As an improvement of this utility model, at least one spray nozzle is provided in the middle of the pipe wall of the rotary discharge pipe, and the spray nozzle sprays compressed air in the direction of the discharge section to remove residual material.

[0010] As a further improvement of this utility model, two spray nozzles are arranged at intervals along the axial direction of the rotating discharge pipe.

[0011] As a further improvement of this utility model, the top of the valve housing is provided with a vent cap to release internal air pressure.

[0012] As a further improvement of this utility model, the blow nozzle is controlled by a compressed air purging device, which further includes a solenoid valve, a throttle valve, an air pipe and a nozzle connector. The air inlet of the solenoid valve is connected to a compressed air source, and the air outlet is connected to the nozzle connector via the throttle valve and the air pipe. The nozzle connector is installed at the blow nozzle.

[0013] As a further improvement of this utility model, the two ends of the rotary discharge pipe are respectively inserted into the pipe support base, and the outer end face of the pipe support base is respectively fixed to the inner wall of the left and right side wall plates of the valve body; the opposite ports of the end pipes are respectively inserted into the outer ports of the corresponding pipe support bases and abut against the ports of the rotary discharge pipes, and the splice is respectively located in the annular groove of the pipe support base, and the annular groove is respectively filled with sealing filler.

[0014] As a further improvement of this utility model, the side wall of the valve housing is provided with an observation window, and the observation window is equipped with an plexiglass sight glass.

[0015] Compared to the prior art, the advantages or beneficial effects of the embodiments of this application include at least the following: 1. A rotating pipe is used to allow the discharge section to move downwards or upwards to discharge and stop the discharge, ensuring no residue after unloading and no leakage after closing; 2. Compressed air is added to the upper angle of the discharge section to make the discharge more thorough, and even the dust adhering to the chain and disc will be blown away. 3. A vent cap is installed on the valve body to release the air pressure inside the equipment; 4. An arc-shaped baffle is installed above the unloading section. When unloading stops and the discharge section is facing upward, it can block the port of the discharge section, so that there will be no leakage even if the material is churning in the pipe. 5. The use of electric actuators and gear transmission enables more precise positioning when the pipeline rotates. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. The drawings are provided for reference and illustration only and are not intended to limit this utility model. Wherein: Figure 1 This utility model relates to a three-dimensional rotary unloading valve for a tubular chain conveyor. Figure 1 ; Figure 2 This utility model relates to a three-dimensional rotary unloading valve for a tubular chain conveyor. Figure 2 ; Figure 3 This is a front sectional view of the rotary unloading valve for a tubular chain conveyor according to this utility model; Figure 4 This is a left sectional view of the rotary unloading valve for the tubular chain conveyor of this utility model. Figure 5 for Figure 2 Exploded view; Reference numerals: 1. Vent cap; 2. Stainless steel cable tie; 3. Exhaust pipe; 4. Discharge valve cover plate; 5. Discharge valve sealing gasket; 6. Discharge port arc baffle; 7. Pinion; 8. Key; 9. Drive shaft; 10. Bearing baffle; 11. Self-lubricating copper sleeve; 12. Bearing support; 13. Electric actuator; 14. End pipe; 15. Sealing packing; 16. Pipe support; 17. Copper sleeve; 18. Copper sleeve baffle; 19. Sight glass sealing gasket; 20. Acrylic sight glass; 21. Rotary discharge pipe; 21a. Discharge section; 21b. Large gear; 22. Nozzle connector; 23. Air pipe; 24. Silencer; 25. Solenoid valve; 26. Throttle valve; 27. Valve body; 28. Chain; 29. ​​Disc. Detailed Implementation

[0017] In the following description of this utility model, the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not mean that the device must have a specific orientation.

[0018] To make the technical means, creative features, achieved objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0020] like Figures 1 to 5 As shown, the rotary unloading valve for the tubular chain conveyor of this utility model includes a valve body 27, the lower end of the valve body 27 is open as the discharge port; the upper port flange of the valve body 27 is provided with a discharge valve sealing gasket 5 and covered with a discharge valve cover plate 4; the front side wall of the valve body 27 is provided with an observation window, and an organic glass sight glass 20 is installed at the observation window and sealed by the sight glass sealing gasket 19.

[0021] The valve body 27 has a rotary discharge pipe 21 extending in the left-right direction inside its cavity. Both ends of the rotary discharge pipe 21 are respectively inserted into pipe support seats 16. The outer end faces of the pipe support seats 16 are respectively fixed to the inner walls of the left and right side panels of the valve body 27 by screws. Copper sleeves 17 are respectively embedded in the opposing ports of the two pipe support seats 16. Copper sleeve baffles 18 are respectively fixed to the opposing end faces of the two pipe support seats 16 by screws, limiting the copper sleeves 17 within the pipe support seats 16. The outer circumferences of both ends of the rotary discharge pipe 21 are respectively inserted into the corresponding copper sleeves 17 and can rotate freely.

[0022] The valve body 27 has circular openings on its left and right side walls. End pipes 14 are fixedly connected to the circular openings via flanges. The opposing ports of the end pipes 14 pass through the circular openings and are inserted into the outer ports of the corresponding pipe supports 16. The inner ports of the end pipes 14 abut against the ports of the rotary discharge pipes 21, and the joints are located in the annular grooves of the pipe supports 16. The annular grooves form a stuffing box and are filled with sealing fillers 15 to ensure that there is no leakage at the joint between the rotary discharge pipes 21 and the end pipes 14.

[0023] The middle section of the rotary discharge pipe 21 has an opening in its circumferential wall and is connected to a discharge section 21a. A large gear 21b is fitted around the outer circumference of one end of the rotary discharge pipe 21. The large gear 21b meshes with a small gear 7, which is fixed to one end of the drive shaft 9 by a key 8. The middle part of the drive shaft 9 is supported in a bearing support 12 by a self-lubricating copper sleeve 11. The root of the bearing support 12 is fixed to the inner wall of the valve body 27 by a flange. A bearing baffle 10 is fixed to the inner port of the bearing support 12 to limit the self-lubricating copper sleeve 11. The other end of the drive shaft 9 extends out of the valve body 27 and is driven by an electric actuator 13, which is fixed to the outer wall of the valve body 27.

[0024] The chain 28 extends along the axis of the rotary discharge pipe 21 and the pipes 14 at both ends. Multiple discs 29 are evenly arranged along the length of the chain 28. There is a gap between the outer edge of the disc 29 and the inner wall of the rotary discharge pipe 21 and the pipes 14 at both ends. When the discharge section 21a is facing down, the chain 28 drives each disc 29 to move forward along the rotary discharge pipe 21 and the pipes 14 at both ends, pushing the material to the discharge section 21a of the rotary discharge pipe 21 for discharge.

[0025] When the discharge section 21a faces downwards, the upper part of the rotary discharge pipe 21 is provided with a blow nozzle, which is connected to a nozzle connector 22. The compressed air pipe is connected to the air inlet of the solenoid valve 25, and the air outlet of the solenoid valve 25 is connected to a throttle valve 26. The throttle valve 26 is connected to the nozzle connector 22 through an air pipe, and a silencer 24 is installed at the vent of the solenoid valve 25. Two blow nozzles can be arranged along the axial direction of the rotary discharge pipe 21 to increase the axial blowing area, so as to blow away the dust adhering to the chain 28 and the disc 29.

[0026] The center of the unloading valve cover plate 4 is welded with an exhaust pipe 3, and the upper end of the exhaust pipe 3 is fitted with a vent cap 1, which is fixed by a stainless steel cable tie 2.

[0027] Below the discharge valve cover plate 4 is a discharge port arc baffle 6. When the discharge section 21a is rotated to face upward, the discharge port arc baffle 6 covers it to prevent material leakage.

[0028] The operating sequence of this rotary discharge valve is as follows: When unloading is required, the electric actuator 13 is started, which drives the pinion 7 to rotate through the drive shaft 9 and key 8. The pinion 7 drives the large gear 21b to rotate, and the large gear 21b drives the rotating discharge pipe 21 to rotate. The discharge section 21a on the rotating discharge pipe 21 rotates to the downward discharge position. The chain 28 drives the disc 29 to move in the end pipe 14 and the rotating discharge pipe 21, while pushing the material inside the pipe forward. When the material reaches the position of the discharge section 21a, it falls automatically under the action of gravity.

[0029] A small amount of dust may adhere to the chain 28 and disc 29. At this time, opening the solenoid valve 25 creates an air passage. Compressed air passes through the solenoid valve 25, throttle valve 26, air pipe 23, nozzle connector 22, and other pneumatic components into the rotating discharge pipe 21 diagonally above the discharge section 21a. The small amount of dust adsorbed on the chain 28 and disc 29 will be blown off by the compressed air and fall from the discharge section 21a, along with the material, into the lower hopper. When the compressed air is activated, positive pressure is created inside the system. This internal pressure is released through the vent cap 1, allowing the compressed air to successfully complete the purging process.

[0030] When unloading is complete, the electric actuator 13 is restarted and rotates in the reverse direction. Driven by the pinion 7 and the large gear 21b, the discharge pipe 21 rotates to the stop discharge position, and the discharge section 21a is vertically upward. At this time, the port of the discharge section 21a is covered by the arc-shaped baffle 6 of the discharge port. At this time, the discharge valve stops unloading. Even if the material tumbles inside the pipe, the material will not leak due to the action of the arc-shaped baffle 6 of the discharge port. The material continues to move inside the conveying pipe under the drive of the chain 28 and the disc 29. There will be no leakage when passing through this discharge valve. The material is conveyed to other discharge ports of the tubular chain conveyor for unloading.

[0031] The above description is merely a preferred embodiment of the present utility model, showing and describing the basic principles, main features, and advantages of the present utility model. It is not intended to limit the scope of patent protection of the present utility model. Those skilled in the art should understand that the present utility model is not limited to the above embodiments. In addition to the above embodiments, the present utility model may have other implementations without departing from the spirit and scope of the present utility model. Various changes and improvements to the present utility model are also possible. All technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of protection claimed by the present utility model. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents. Technical features not described in the present utility model can be implemented by or using existing technology, and will not be elaborated here.

Claims

1. A rotary discharge valve for a tubular chain conveyor, characterized in that, include: Valve housing (27), the lower end of which is open to form a discharge port; A rotating discharge pipe (21) is rotatably supported in the valve housing (27) in the left and right directions. The middle section of the rotating discharge pipe (21) is provided with a discharge section (21a) on its circumferential wall, and a large gear (21b) is fixedly provided on the outer periphery of one end of the rotating discharge pipe (21). The drive unit includes an electric actuator (13) fixed to the outer wall of the valve housing (27), a drive shaft (9) driven by the electric actuator (13), and a pinion (7) fixed on the drive shaft (9), the pinion (7) meshing with the large gear (21b); An arc-shaped baffle (6) is fixed inside the valve housing (27) and located above the discharge section (21a). When the discharge section (21a) is vertically upward, the arc-shaped baffle (6) covers the port of the discharge section (21a). The end pipes (14) are respectively sealed and connected to both ends of the rotary discharge pipe (21), and together with the rotary discharge pipe (21) form a conveying channel for the ring chain (28) and the disc (29) to pass through.

2. The rotary discharge valve for a tubular chain conveyor according to claim 1, characterized in that: The rotating discharge pipe (21) has at least one spray nozzle in the middle of its pipe wall. The spray nozzle sprays compressed air toward the discharge section (21a) to remove residual material.

3. The rotary discharge valve for a tubular chain conveyor according to claim 2, characterized in that: Two nozzles are spaced apart along the axis of the rotating discharge pipe (21).

4. The rotary discharge valve for a tubular chain conveyor according to claim 2, characterized in that: The valve housing (27) is provided with a vent cap (1) at the top to release internal air pressure.

5. The rotary discharge valve for a tubular chain conveyor according to claim 2, characterized in that: The nozzle is controlled by a compressed air purging device, which also includes a solenoid valve (25), a throttle valve (26), an air pipe (23), and a nozzle connector (22). The inlet of the solenoid valve (25) is connected to a compressed air source, and the outlet is connected to the nozzle connector (22) via the throttle valve (26) and the air pipe (23). The nozzle connector (22) is installed at the nozzle.

6. The rotary discharge valve for a tubular chain conveyor according to claim 2, characterized in that: The two ends of the rotary discharge pipe (21) are respectively inserted into the pipe support (16), and the outer end face of the pipe support (16) is respectively fixed to the inner wall of the left and right side wall plates of the valve body (27); the opposite ports of the end pipes (14) are respectively inserted into the outer ports of the corresponding pipe support (16) and abut against the ports of the rotary discharge pipe (21), and the splice is respectively located in the annular groove of the pipe support (16), and the annular groove is respectively filled with sealing filler (15).

7. The rotary discharge valve for a tubular chain conveyor according to any one of claims 1 to 6, characterized in that: The valve housing (27) has an observation window on its side wall, and the observation window is fitted with an organic glass sight glass (20).

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