A pneumatic chute pressure relief device

Abstract

The utility model discloses a kind of air chute pressure-relief devices, it is related to material conveying technical field, including conveying chute, and be installed on conveying chute to be used in the process of conveying to the pressure discharge of chute interior pressure relief device, conveying chute top is provided with multiple pressure relief devices, to ensure the pressure stability of conveying chute in the process of conveying in each section by the pressure relief device being arranged, pressure relief device includes ventilating portion, mounting cover body and jolt mechanism, conveying chute top is equipped with air hole, ventilating portion is installed on air hole, mounting cover body is installed on conveying chute, and cover is set in ventilating portion upper side, jolt mechanism is installed on mounting cover body, and its vibration output end acts on ventilating portion, dust adhered on ventilating portion is removed by vibration, keep the unblocked state of ventilating portion, to ensure the smooth pressure relief in the process of conveying.

Description

Technical Field

[0001] This utility model belongs to the field of material conveying technology, and specifically relates to a pneumatic chute pressure relief device. Background Technology

[0002] A pneumatic sluice is a continuous conveying device that uses air to fluidize materials and relies on the material's own weight and the sluice's inclination angle for transport. It mainly consists of upper and lower sluices, a balance column, an intermediate permeable layer (such as filter bags or perforated plates), and a blower. The blower injects high-pressure air into the lower sluice, which, through the permeable layer, fluidizes the material in the upper sluice, causing it to flow like a fluid within the inclined sluice. Pneumatic sluices offer advantages such as simple structure, no moving parts, low energy consumption, minimal wear, and high conveying capacity, and are widely used for conveying powdery materials in industries such as cement, metallurgy, chemicals, and grain.

[0003] However, due to the large amount of dust contained in the conveyed materials, the dust easily adheres to the surface of the filter bags during the conveying process, causing a significant decrease in the dust collection efficiency of the filter bags. This results in the inability to effectively release the internal pressure of the balance column, thus affecting the normal operation of the pneumatic chute. Furthermore, frequent clogging and replacement of the filter bags not only increases maintenance costs but also reduces production efficiency. Moreover, due to the limitations of the filter bag material, it is prone to aging and damage in high-temperature or corrosive environments, further shortening its service life and exacerbating the burden of maintenance. To ensure stable pressure within the balance column and smooth material conveying, the outer casing needs to be disassembled and the filter bags cleaned each time, but the installation and maintenance of the casing are quite difficult. Utility Model Content

[0004] The purpose of this invention is to provide a pneumatic chute pressure relief device, thereby overcoming the technical problems existing in the background art. This pressure relief structure can reduce the maintenance frequency, promptly clear the permeable layer to ensure the stability of the pressure inside the balance column, and ensure the smooth conveying of materials. The specific technical solution is as follows: A pneumatic chute pressure relief device includes a conveying chute, on which a pressure relief device for pressure relief is installed. The pressure relief device includes a venting part, a mounting cover, and a vibrating mechanism. The top of the conveying chute is provided with a venting hole, and the venting part is installed on the venting hole. The mounting cover is installed on the conveying chute and covers the venting part. The vibrating mechanism is installed on the mounting cover, and its vibration output end acts on the venting part to remove dust adhering to the venting part through vibration.

[0005] Preferably, the ventilated part includes a ventilated cloth and a cover plate frame. The ventilated cloth is pressed and installed on the vent holes by the cover plate frame, and the cover plate frame is fixedly installed on the conveying chute by bolt connection.

[0006] Preferably, the mounting cover includes a cover and a mounting top cover. The cover is welded to the cover plate frame. The mounting top cover is supported on the top of the cover by several support columns. The mounting top cover does not contact the top of the cover (221) to form a ventilation opening, and the interior of the mounting cover is connected to the outside through the ventilation opening.

[0007] Preferably, the side of the cover is provided with an inspection opening, and the opposite sides of the inspection opening are provided with sliding grooves, on which inspection baffles are slidably inserted.

[0008] Preferably, the inspection baffle is provided with a transparent observation window.

[0009] Preferably, the maintenance baffle is also provided with a pull ring.

[0010] Preferably, the vibrating mechanism includes a mounting base, an electromagnetic jet valve, an air source system, a control system, and a connecting pipeline. The electromagnetic jet valve is mounted on the mounting top cover via the mounting base, with the output end of the electromagnetic jet valve facing the breathable fabric. The connecting pipeline is connected to the electromagnetic jet valve and is connected to the air source system via the connecting pipeline. The air source system is electrically connected to the control system.

[0011] Preferably, the mounting top cover is provided with a plurality of electromagnetic jet valves, which act on the four corners and the center of the breathable fabric respectively.

[0012] Compared with existing technologies, this utility model has the following beneficial effects: 1. This utility model provides a pneumatic chute pressure relief device. This pressure relief device removes dust adhering to the ventilated part by blowing and vibrating, keeping the ventilated part unobstructed, thereby ensuring smooth pressure relief during the material conveying process. The vibrating mechanism enhances the dust removal effect. By periodically or as needed, the material adhering to the ventilated cloth is further removed by vibrating the ventilated part, thereby improving the pressure relief efficiency. This solution has a simple structure, is easy to install and maintain, does not require frequent disassembly and assembly of the housing, reduces the difficulty of operation, and improves work efficiency.

[0013] 2. The permeable part of this utility model uses a breathable cloth instead of a traditional filter bag. The breathable cloth has good air permeability and is not easily blocked by materials, ensuring the effective release of internal pressure in the conveying chute, thereby ensuring the stable operation of the chute. Moreover, the breathable cloth has strong adaptability to high temperature and corrosive environments, is not easy to age and break, extends the service life of the device, and reduces the burden of maintenance work. Attached Figure Description

[0014] 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. In all the drawings, similar elements or parts are generally identified by similar reference numerals. The elements or parts in the drawings are not necessarily drawn to scale.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is an exploded view of the overall structure of this utility model.

[0017] Explanation of key figure labels: 100-Conveying chute, 110-Ventilation hole, 200-Pressure relief device, 210-Ventilation section, 211-Ventilation cloth, 212-Cover plate frame, 220-Mounting cover, 221-Cover, 222-Mounting top cover, 223-Maintenance opening, 224-Chutter, 225-Maintenance baffle, 226-Transparent observation window, 227-Pull lifting ring, 230-Vibration mechanism, 231-Mounting base, 232-Electromagnetic jet valve. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side", etc., indicating the orientation or positional relationship are 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 are not intended to 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.

[0020] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first," "second," and "third" are used in the description, they are for descriptive purposes and to distinguish technical features, and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will now be described based on its overall structure.

[0022] Example like Figures 1 to 2 As shown, a pneumatic chute pressure relief device includes a conveying chute 100 and a pressure relief device 200 installed on the conveying chute 100 for relieving the internal pressure of the chute during the material conveying process. It is worth mentioning that multiple pressure relief devices 200 are provided above the conveying chute 100.

[0023] Preferably, the pressure relief device 200 includes a venting section 210, a mounting cover 220, and a vibrating mechanism 230. The top of the conveying chute 100 is provided with a venting hole 110. The venting section 210 is installed on the venting hole 110. The mounting cover 220 is installed on the conveying chute 100 and covers the venting section 210. The vibrating mechanism 230 is installed on the mounting cover 220, and its vibration output end acts on the venting section 210. By vibrating, the dust adhering to the venting section 210 is shaken off, keeping the venting section 210 unobstructed, thereby ensuring smooth pressure relief during the material conveying process.

[0024] In some preferred embodiments, the ventilated part 210 includes a ventilated cloth 211 and a cover plate frame 212. The ventilated cloth 211 is pressed and installed on the vent hole 110 by the cover plate frame 212. The cover plate frame 212 is fixedly installed on the conveying chute 100 by bolt connection. The ventilated cloth 211 in the middle area of ​​the cover plate frame 212 is a pressure unloading area. At the same time, it is also connected to the inside of the mounting cover 220 through this ventilated area. The internal capacity of the mounting cover 220 is used to bear the air pressure discharged from the conveying chute 100 to ensure the smoothness of the material conveying.

[0025] Preferably, the mounting cover 220 includes a cover 221 and a mounting top cover 222. The cover 221 is welded to the pressure plate frame 212. The mounting top cover 222 is supported on the top of the cover 221 by several support columns. The mounting top cover 222 does not contact the top of the cover 221 to form a ventilation opening, and the interior of the mounting cover 220 is connected to the outside through the ventilation opening. The mounting cover 220 is used to unload and discharge pressure on the conveying chute 100. The mounting top cover 222 is used to mount the vibrating mechanism 230.

[0026] In some preferred embodiments, the cover 221 has a maintenance opening 223 on its side, and grooves 224 are provided on opposite sides of the maintenance opening 223. Maintenance baffles 225 are slidably inserted into the grooves 224. Further, the maintenance baffles 225 are provided with transparent observation windows 226. The maintenance baffles 225 are also provided with a pull ring 227. The material conveying status inside the conveying chute 100 can be observed in real time through the transparent observation window 226 to ensure stable and smooth material conveying. Simultaneously, the structure of the conveying chute 100 can be inspected through the transparent observation window 226. If any problems occur, the pull ring 227 can be pulled in time to remove the maintenance baffles 225 and perform maintenance or conveying on the conveying chute 100.

[0027] Preferably, the vibrating mechanism 230 includes a mounting base 231, an electromagnetic jet valve 232, an air source system, a control system, and connecting pipes. The electromagnetic jet valve 232 is mounted on the mounting top cover 222 via the mounting base 231. The output end of the electromagnetic jet valve 232 faces the breathable cloth 211. The connecting pipe is connected to the electromagnetic jet valve 232 and is connected to the air source system via the connecting pipe. The air source system is electrically connected to the control system.

[0028] In some preferred embodiments, the mounting cover 222 is provided with a plurality of electromagnetic blowing valves 232, which act on the four corners and the center of the breathable fabric 211 respectively. This ensures that the dust adhering to the breathable fabric 211 can be removed in a timely and thorough manner during the blowing and vibration process.

[0029] Next, the working principle of this embodiment will be described in detail so that those skilled in the art can better understand this utility model: The material conveying status inside the conveying chute 100 and whether the breathable cloth 211 is in a clear and pressure-relieved state can be observed through the transparent observation window 226 provided on the inspection baffle 225. If too much dust adheres to the breathable cloth 211, causing the holes on the breathable cloth 211 to be blocked and affecting the material conveying effect and the smoothness of material conveying, the vibrating mechanism 230 can be activated in this situation to clear the air vent 211 in time. Specifically, the air source system, acting as a power source, provides the air supply for the electromagnetic jet valve 232, ensuring sufficient air volume and stable pressure during jetting. This air source system includes an air compressor, air tank, dryer, and filter. The control system controls the jetting and rapping action, issuing electrical pulse signals according to a preset program (such as interval time and jetting sequence) to precisely control the opening and closing of each electromagnetic jet valve. Upon receiving the corresponding electrical signal, the electromagnetic jet valve 232 performs a rapid opening or closing action. Through the coordinated action of these components, the dust removal and cleaning operation of the breathable fabric 211 is completed. It is worth noting that the above working principle is existing technology and will not be elaborated upon further here.

[0030] In summary, this utility model provides a pneumatic chute pressure relief device. This device uses jet blowing and vibration to remove dust adhering to the ventilated part, maintaining the ventilated part's unobstructed state and ensuring smooth pressure relief during material conveying. The vibration mechanism enhances the dust removal effect; by periodically or as needed, vibration of the ventilated part further removes material adhering to the ventilated cloth, improving pressure relief efficiency. This solution has a simple structure, is easy to install and maintain, and does not require frequent disassembly and assembly of the housing, reducing operational difficulty and improving work efficiency. In this utility model, the ventilated part uses ventilated cloth instead of traditional filter bags. The ventilated cloth has good air permeability and is not easily blocked by materials, ensuring effective release of internal pressure in the conveying chute, thereby ensuring stable operation of the chute. Moreover, the ventilated cloth has strong adaptability to high temperature and corrosive environments, is not easily aged or damaged, extends the service life of the device, and reduces the burden of maintenance work.

[0031] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A pneumatic chute pressure relief device, comprising a conveying chute (100), characterized in that, The conveying chute (100) is equipped with a pressure relief device (200) for relieving pressure. The pressure relief device (200) includes a vent (210), a mounting cover (220), and a vibrating mechanism (230). The top of the conveying chute (100) is provided with a vent (110). The vent (210) is installed on the vent (110). The mounting cover (220) is installed on the conveying chute (100) and covers the vent (210). The vibrating mechanism (230) is installed on the mounting cover (220), and its vibration output end acts on the vent (210) to remove the dust adhering to the vent (210) through vibration.

2. A pressure relief device for a pneumatic chute according to claim 1, wherein The ventilated part (210) includes a ventilated cloth (211) and a cover plate frame (212). The ventilated cloth (211) is pressed and installed on the vent hole (110) by the cover plate frame (212). The cover plate frame (212) is fixedly installed on the conveying chute (100) by bolt connection.

3. A pressure relief device for a pneumatic chute according to claim 2, wherein The mounting cover (220) includes a cover (221) and a mounting top cover (222). The cover (221) is welded to the pressure plate frame (212). The mounting top cover (222) is supported on the top of the cover (221) by several support columns. The mounting top cover (222) does not contact the top of the cover (221) to form a ventilation opening, and the interior of the mounting cover (220) is connected to the outside through the ventilation opening.

4. The pneumatic chute pressure relief device according to claim 3, characterized in that, The cover (221) has an inspection opening (223) on its side, and the inspection opening (223) has a sliding groove (224) on its opposite sides, and an inspection baffle (225) is slidably inserted into the sliding groove (224).

5. A pressure relief device for a pneumatic chute according to claim 4, wherein The maintenance baffle (225) is provided with a transparent observation window (226).

6. A pressure relief device for a pneumatic chute according to claim 4, wherein The maintenance baffle (225) is also equipped with a pull ring (227).

7. The pneumatic chute pressure relief device according to claim 3, characterized in that, The vibrating mechanism (230) includes a mounting base (231), an electromagnetic jet valve (232), an air source system, a control system, and a connecting pipeline. The electromagnetic jet valve (232) is mounted on the mounting top cover (222) through the mounting base (231). The output end of the electromagnetic jet valve (232) faces the breathable cloth (211). The connecting pipeline is connected to the electromagnetic jet valve (232) and is connected to the air source system through the connecting pipeline. The air source system is electrically connected to the control system.

8. A pressure relief device for a pneumatic chute according to claim 7, wherein The mounting top cover (222) is provided with a plurality of electromagnetic jet valves (232), which act on the four corners and the center of the breathable cloth (211) respectively.

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