Long-distance plug flow pneumatic conveying intelligent plug forming device

Abstract

The utility model discloses an intelligent plug forming device for long-distance plug flow pneumatic conveying, which belongs to the technical field of pneumatic conveying and comprises an auxiliary blowing mounting component, an adjustable auxiliary blowing switch component is connected to the middle of the auxiliary blowing mounting component, and a pneumatic conveying pipe is connected to the right end of the auxiliary blowing mounting component. The lower end of the blowing assisting installation assembly is connected with a filtering backflow assembly, the lower end of the filtering backflow assembly is connected with a pneumatic conveying pipe, and when the air pressure in the pneumatic conveying pipe is increased due to blockage, air in the pneumatic conveying pipe is filtered through the filtering backflow assembly and enters the blowing assisting installation assembly; the adjustable blowing-assisting switch assembly is extruded by the gas, so that the adjustable blowing-assisting switch assembly is automatically opened and automatically adjusts the blowing-assisting ventilation degree, when the dredging air pressure of the pneumatic conveying pipe is reduced, the adjustable blowing-assisting switch assembly automatically closes blowing-assisting, and automatic adjustment of blowing-assisting is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pneumatic conveying, and particularly relates to an intelligent plug-forming device for long-distance plug-flow pneumatic conveying. Background Art

[0002] A pneumatic conveying system is a widely used material handling method in industry, especially in the process of handling powder, granular materials or other dry bulk materials. This system uses gas (usually air) as the conveying medium and transports materials from one place to another through pipelines. The pneumatic conveying system has the advantages of long conveying distance, good sealing performance, high degree of automation, etc., and is widely used in industries such as chemical industry, food, pharmaceutical, and electric power. When pneumatically conveying, the pipeline often gets blocked, and at this time, a blowing assistance device is needed to blow and clean the blockage, and the blowing assistance device requires a plug-forming device to control the blowing assistance timing.

[0003] Most of the existing plug-forming devices use a control circuit to control various items such as the blowing assistance size and the blowing assistance switch, which is cumbersome to operate, has a high cost, and is cumbersome to maintain.

[0004] Based on this, the utility model designs an intelligent plug-forming device for long-distance plug-flow pneumatic conveying to solve the above problems. Content of the Utility Model

[0005] In view of the above-mentioned drawbacks of the prior art, the utility model provides an intelligent plug-forming device for long-distance plug-flow pneumatic conveying.

[0006] To achieve the above purposes, the utility model is realized through the following technical solutions:

[0007] An intelligent plug-forming device for long-distance plug-flow pneumatic conveying includes a blowing assistance installation component;

[0008] The middle part of the blowing assistance installation component is connected with an adjustable blowing assistance switch component that can adjust the blowing assistance force and automatically switch on and off;

[0009] The right end of the blowing assistance installation component is connected with a pneumatic conveying pipe;

[0010] The lower end of the blowing assistance installation component is connected with a filtering and reflux component for connecting the lower end of the blowing assistance installation component with the pneumatic conveying pipe and filtering the gas flowing back from the pneumatic conveying pipe into the blowing assistance installation component, and the lower end of the filtering and reflux component is connected with the pneumatic conveying pipe.

[0011] Further, the auxiliary blowing installation assembly includes an installation bin, a top cover, an air inlet pipe, an auxiliary blowing pipe, and a return pipe. The upper end of the installation bin is fixedly connected to the top cover, the left end of the installation bin is fixedly connected to the air inlet pipe, the right end of the installation bin is fixedly connected to the auxiliary blowing pipe. Both the air inlet pipe and the auxiliary blowing pipe are communicated with the installation bin. The right end of the auxiliary blowing pipe is connected to a pneumatic conveying pipe, and the auxiliary blowing pipe is communicated with the pneumatic conveying pipe. The lower end of the installation bin is connected to the return pipe, the lower end of the return pipe is connected to a filtering and return assembly, the inner wall of the installation bin is connected to an adjustable auxiliary blowing switch assembly, and the middle part of the top cover is connected to the adjustable auxiliary blowing switch assembly.

[0012] Further, the adjustable auxiliary blowing switch assembly includes an auxiliary blowing automatic switch assembly and a self-adjusting assembly. The auxiliary blowing automatic switch assembly is connected to the inner wall of the installation bin, the upper end of the auxiliary blowing automatic switch assembly is connected to the self-adjusting assembly, and the upper end of the self-adjusting assembly passes through the top cover and is connected to the top cover.

[0013] Further, the auxiliary blowing automatic switch assembly includes a piston, a ventilation hole, a limit stop block, and an anti-bottom-touching stop block. The piston is limited and slidably connected inside the installation bin. A ventilation hole is opened at the lower end of the piston. A limit stop block is fixedly connected to the inner wall of the installation bin above the piston. A plurality of anti-bottom-touching stop blocks are fixedly connected to the inner bottom of the installation bin. The top of the piston is connected to the lower end of the self-adjusting assembly.

[0014] Further, the self-adjusting assembly includes a sliding column, a sliding tube, and a spring. The top of the piston is fixedly connected to the sliding column. The upper end of the sliding column is inserted into the sliding tube. The sliding tube passes through the upper end of the top cover and the lower end of the sliding tube is threadedly connected to the top cover. A spring is fixedly connected between the inner top of the sliding tube and the piston. The sliding column is located inside the spring.

[0015] Further, the spring is always in a compressed deformation state.

[0016] Further, the filtering and return assembly includes a Y-shaped pipe, a filter element, a threaded cap, and a sealing cover. The lower end of the return pipe is fixedly connected to the Y-shaped pipe. The lower end of the vertical pipe of the Y-shaped pipe is fixedly connected to the pneumatic conveying pipe. The installation bin and the pneumatic conveying pipe are communicated through the Y-shaped pipe. A filter element is fixedly connected inside the upper end of the vertical pipe of the Y-shaped pipe. A threaded cap is fixedly connected to the lower side wall of the filter element. The upper part of the filter element is communicated with the threaded cap. The threaded cap is located inside the inclined pipe of the Y-shaped pipe. The lower end of the inclined pipe of the Y-shaped pipe is fixedly connected to the sealing cover.

[0017] The utility model has the following technical effects:

[0018] 1. When the pneumatic conveying pipe is blocked, the internal air pressure of the pneumatic conveying pipe increases. As a result, the gas inside the pneumatic conveying pipe enters the installation chamber through the filter reflux assembly. At this time, the gas inside the pneumatic conveying pipe pushes the piston to slide upward under the limitation of the installation chamber. The piston drives the ventilation hole and the sliding column to move upward. At this time, the piston compresses the spring, causing the spring to undergo compressive deformation. When the ventilation hole moves to connect the intake pipe and the auxiliary blowing pipe, the auxiliary blowing gas enters the pneumatic conveying pipe through the intake pipe, the ventilation hole and the auxiliary blowing pipe for auxiliary blowing. When the pressure inside the pneumatic conveying pipe continues to increase, the piston continues to move upward until it touches the limit stop block. At this time, the ventilation hole completely connects the intake pipe and the auxiliary blowing pipe, and the auxiliary blowing force is the largest at this time, thus achieving the effect of automatically adjusting the auxiliary blowing force. When the blockage inside the pneumatic conveying pipe is blown through, the pressure inside the pneumatic conveying pipe becomes smaller. At this time, the restoring force of the spring is greater than the pressure inside the pneumatic conveying pipe, so that the spring drives the piston to move downward under the limitation of the sliding column and the sliding pipe, so that the ventilation hole moves downward to disconnect from the intake pipe and the auxiliary blowing pipe, and then completes the automatic cut-off of the auxiliary blowing gas, realizing the automatic adjustment and automatic switch of the auxiliary blowing gas. There is no need for driving parts and control instruments for adjustment, which simplifies the steps and saves costs. When the piston drops to touch the anti-bottom-touching block, the piston reaches the bottom. At this time, through the anti-bottom-touching block, the contact area between the bottom of the piston and the gas inside the pneumatic conveying pipe increases, improving the sensitivity of the auxiliary blowing device. When it is necessary to adjust the air pressure inside the pneumatic conveying pipe required to switch on and off the auxiliary blowing gas, rotate the sliding pipe. The sliding pipe moves up and down under the limitation of the top cover. When the sliding pipe moves downward, it compresses the spring, increasing the downward pressure of the spring on the piston, so that the air pressure inside the pneumatic conveying pipe required for the piston to rise increases. When the sliding pipe moves upward, the spring stretches upward, reducing the pressure of the spring on the piston, and then reducing the air pressure inside the pneumatic conveying pipe required for the piston to rise, realizing the simple adjustment of the auxiliary blowing device when assisting in blowing pneumatic conveying pipes with different air pressures.

[0019] 2. Materials are pneumatically transported through the pneumatic conveying pipe. When the pneumatic conveying pipe is blocked, gas is flushed into the installation chamber through the intake pipe. The gas enters the inside of the pneumatic conveying pipe through the adjustable auxiliary blowing switch assembly and the auxiliary blowing pipe to increase the internal air pressure of the pneumatic conveying pipe, thereby realizing the auxiliary blowing of the pneumatic transportation inside the pneumatic conveying pipe. When it is necessary to repair the workpiece inside the installation chamber, just remove the top cover to repair the workpiece inside the installation chamber, which is simple and convenient.

[0020] 3. When the inside of the pneumatic conveying pipe is blocked, the gas inside the pneumatic conveying pipe enters the Y-shaped pipe. The gas is blocked by the filter element and enters the upper part of the filter element through the filtration of the threaded cap and enters the installation chamber through the reflux pipe, realizing the filtration of the gas entering the installation chamber from the pneumatic conveying pipe, preventing the material inside the pneumatic conveying pipe from entering the installation chamber and affecting the normal operation of the adjustable auxiliary blowing switch assembly. When the threaded cap is blocked, remove the threaded cap to clean the threaded cap, and the operation is simple and convenient. Description of the Drawings

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 Stereoscopic structure diagram of an intelligent plug-forming device for long-distance plug-flow pneumatic conveying of the present invention;

[0023] Figure 2 Schematic diagram of the sliding column structure of an intelligent plug-forming device for long-distance plug-flow pneumatic conveying of the present invention;

[0024] Figure 3 Schematic diagram of the filter element structure of an intelligent plug-forming device for long-distance plug-flow pneumatic conveying of the present invention;

[0025] Figure 4 is Figure 3 Enlarged view of part A in

[0026] In the drawings: 1. Auxiliary blowing installation assembly; 11. Installation bin; 12. Top cover; 13. Air inlet pipe; 14. Auxiliary blowing pipe; 15. Return pipe; 2. Adjustable auxiliary blowing switch assembly; 21. Auxiliary blowing automatic switch assembly; 211. Piston; 212. Vent hole; 213. Limit stop block; 214. Anti-bottoming stop block; 22. Self-adjusting assembly; 221. Sliding column; 222. Sliding tube; 223. Spring; 3. Filter return assembly; 31. Y-shaped pipe; 32. Filter element; 33. Threaded cap; 34. Sealing cover; 4. Pneumatic conveying pipe. Detailed implementation manners

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0028] The following further describes the present invention with reference to the embodiments. Embodiment

[0029] Please refer to the attached Figures 1-4 to an intelligent plug-forming device for long-distance plug-flow pneumatic conveying, including an auxiliary blowing installation assembly 1;

[0030] In the middle of the air-assist installation component 1, there is an adjustable air-assist switch component 2 that can adjust the air-assist force and automatically switch on and off.

[0031] The right end of the air-assist installation component 1 is connected to an air conveying pipe 4.

[0032] The lower end of the air-assist installation component 1 is connected to a filter and reflux component 3 that connects the lower end of the air-assist installation component 1 to the air conveying pipe 4 and filters the gas that flows back from the air conveying pipe 4 into the air-assist installation component 1. The lower end of the filter and reflux component 3 is connected to the air conveying pipe 4.

[0033] The air-assist installation component 1 includes an installation bin 11, a top cover 12, an air inlet pipe 13, an air-assist pipe 14, and a reflux pipe 15. The upper end of the installation bin 11 is fixedly connected to the top cover 12 through a fixed connection. The left end of the installation bin 11 is fixedly connected to the air inlet pipe 13. The right end of the installation bin 11 is fixedly connected to the air-assist pipe 14. Both the air inlet pipe 13 and the air-assist pipe 14 are connected to the installation bin 11 and communicate with it. The right end of the air-assist pipe 14 is connected to the air conveying pipe 4 and communicates with it. The lower end of the installation bin 11 is connected to the reflux pipe 15. The lower end of the reflux pipe 15 is connected to the filter and reflux component 3. The inner wall of the installation bin 11 is connected to the adjustable air-assist switch component 2, and the middle part of the top cover 12 is connected to the adjustable air-assist switch component 2.

[0034] The material is pneumatically transported through the air conveying pipe 4. When the air conveying pipe 4 is blocked, gas is introduced into the installation bin 11 through the air inlet pipe 13. The gas enters the inside of the air conveying pipe 4 through the adjustable air-assist switch component 2 and the air-assist pipe 14, increasing the internal air pressure of the air conveying pipe 4, thereby realizing the air-assist for the pneumatic transportation in the air conveying pipe 4. When it is necessary to repair the workpiece inside the installation bin 11, simply remove the top cover 12 to repair the workpiece inside the installation bin 11, which is simple and convenient.

[0035] The adjustable air-assist switch component 2 includes an air-assist automatic switch component 21 and a self-adjusting component 22. The air-assist automatic switch component 21 is connected to the inner wall of the installation bin 11. The upper end of the air-assist automatic switch component 21 is connected to the self-adjusting component 22. The upper end of the self-adjusting component 22 passes through the top cover 12 and is connected to the top cover 12.

[0036] The air-assist automatic switch component 21 includes a piston 211, a ventilation hole 212, a limit stop block 213, and an anti-bottom-touching stop block 214. The piston 211 is connected to the inside of the installation bin 11 in a limited sliding manner. The ventilation hole 212 is opened at the lower end of the piston 211. The limit stop block 213 is fixedly connected to the inner wall of the installation bin 11 above the piston 211. Several anti-bottom-touching stop blocks 214 are fixedly connected to the inner bottom of the installation bin 11. The top of the piston 211 is connected to the lower end of the self-adjusting component 22.

[0037] A chute is provided on the side wall of the piston 211, and a slide bar is fixedly connected to the inner wall of the installation bin 11. The slide bar is fitted and slidably connected in the chute. The piston 211 and the installation bin 11 are limited and slidably connected through the chute and the slide bar;

[0038] The self-adjusting assembly 22 includes a sliding column 221, a sliding tube 222 and a spring 223. The sliding column 221 is fixedly connected to the top of the piston 211. The upper end of the sliding column 221 is inserted into the interior of the sliding tube 222. The sliding tube 222 passes through the upper end of the top cover 12 and the lower end of the sliding tube 222 is threadedly connected to the top cover 12. A spring 223 is fixedly connected between the inner top of the sliding tube 222 and the piston 211. The sliding column 221 is located inside the spring 223, and the spring 223 is always in a compressed deformation state;

[0039] When the pneumatic conveying pipe 4 is blocked, the internal air pressure of the pneumatic conveying pipe 4 increases, so that the gas inside the pneumatic conveying pipe 4 enters the inside of the installation bin 11 through the filter reflux assembly 3. At this time, the gas inside the pneumatic conveying pipe 4 pushes the piston 211 to slide upward under the limit of the installation bin 11. The piston 211 drives the ventilation hole 212 and the sliding column 221 to move upward. At this time, the piston 211 compresses the spring 223, causing the spring 223 to undergo compressive deformation. When the ventilation hole 212 moves to connect the intake pipe 13 and the auxiliary blowing pipe 14, the auxiliary blowing gas enters the pneumatic conveying pipe 4 through the intake pipe 13, the ventilation hole 212 and the auxiliary blowing pipe 14 for auxiliary blowing. When the pressure inside the pneumatic conveying pipe 4 continues to increase, the piston 211 continues to move upward until it contacts the limit stop block 213. At this time, the ventilation hole 212 completely connects the intake pipe 13 and the auxiliary blowing pipe 14, and the auxiliary blowing force is the greatest at this time, thus achieving the effect of automatically adjusting the auxiliary blowing force. When the blockage inside the pneumatic conveying pipe 4 is blown through, the pressure inside the pneumatic conveying pipe 4 becomes smaller. At this time, the restoring force of the spring 223 is greater than the pressure inside the pneumatic conveying pipe 4, so that the spring 223 drives the piston 211 to move downward under the limit of the sliding column 221 and the sliding pipe 222, so that the ventilation hole 212 moves downward to disengage from the intake pipe 13 and the auxiliary blowing pipe 14, and then completes the automatic cut-off of the auxiliary blowing gas, realizing the automatic adjustment and automatic switch of the auxiliary blowing gas, without the need for adjusting driving parts and control instruments, simplifying the steps and saving costs. When the piston 211 falls to contact the anti-bottom-touching block 214, the piston 211 reaches the bottommost part. At this time, through the anti-bottom-touching block 214, the contact area between the bottom of the piston 211 and the gas inside the pneumatic conveying pipe 4 increases, improving the sensitivity of the auxiliary blowing device. When it is necessary to adjust the air pressure inside the pneumatic conveying pipe 4 required to switch on and off the auxiliary blowing gas, rotate the sliding pipe 222. The sliding pipe 222 moves up and down under the limit of the top cover 12. When the sliding pipe 222 moves downward, it compresses the spring 223, increasing the downward pressure of the spring 223 on the piston 211, so that the air pressure inside the pneumatic conveying pipe 4 required for the piston 211 to rise increases. When the sliding pipe 222 moves upward, the spring 223 stretches upward, so that the pressure of the spring 223 on the piston 211 decreases, and then the air pressure inside the pneumatic conveying pipe 4 required for the piston 211 to rise decreases, realizing the simple adjustment of the auxiliary blowing device when assisting in blowing pneumatic conveying pipes 4 with different air pressures.

[0040] The filter reflux assembly 3 includes a Y-shaped pipe 31, a filter element 32, a threaded cap 33 and a cover 34. The lower end of the reflux pipe 15 is fixedly connected to the Y-shaped pipe 31. The lower end of the vertical pipe of the Y-shaped pipe 31 is fixedly connected to the pneumatic conveying pipe 4. The installation bin 11 and the pneumatic conveying pipe 4 are connected and communicated through the Y-shaped pipe 31. A filter element 32 is fixedly connected inside the upper end of the vertical pipe of the Y-shaped pipe 31. A threaded cap 33 is fixedly connected to the lower side wall of the filter element 32. The upper part of the filter element 32 is connected and communicated with the threaded cap 33. The threaded cap 33 is located inside the inclined pipe of the Y-shaped pipe 31. The lower end of the inclined pipe of the Y-shaped pipe 31 is fixedly connected to the cover 34;

[0041] When the inside of the pneumatic conveying pipe 4 is blocked, the gas inside the pneumatic conveying pipe 4 enters the inside of the Y-shaped pipe 31. Blocked by the filter element 32, the gas passes through the filter of the threaded cap 33 and enters above the filter element 32, and then enters the installation bin 11 through the return pipe 15, realizing the filtration of the gas entering the installation bin 11 from the pneumatic conveying pipe 4, preventing the materials inside the pneumatic conveying pipe 4 from entering the installation bin 11 and affecting the normal operation of the adjustable air blowing switch assembly 2. When the threaded cap 33 is blocked, the cover 34 can be removed to clean the threaded cap 33, and the operation is simple and convenient.

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A long-distance plug-flow pneumatic conveying intelligent plug former, comprising a blowing assistance installation component (1), characterized in that: A regulable blowing assistance switch component (2) for regulating the blowing assistance intensity and automatically switching on and off is connected to the middle of the blowing assistance installation component (1); A pneumatic conveying pipe (4) is connected to the right end of the blowing assistance installation component (1); A filtering and reflux component (3) for connecting the lower end of the blowing assistance installation component (1) to the pneumatic conveying pipe (4) and filtering the gas flowing back from the pneumatic conveying pipe (4) into the blowing assistance installation component (1) is connected to the lower end of the blowing assistance installation component (1), and the lower end of the filtering and reflux component (3) is connected to the pneumatic conveying pipe (4); The blowing assistance installation component (1) includes an installation bin (11), a top cover (12), an air inlet pipe (13), a blowing assistance pipe (14), and a reflux pipe (15). The upper end of the installation bin (11) is fixedly connected to the top cover (12) through a connection. The left end of the installation bin (11) is fixedly connected to the air inlet pipe (13). The right end of the installation bin (11) is fixedly connected to the blowing assistance pipe (14). Both the air inlet pipe (13) and the blowing assistance pipe (14) are communicated with the installation bin (11). The right end of the blowing assistance pipe (14) is connected to the pneumatic conveying pipe (4), and the blowing assistance pipe (14) is communicated with the pneumatic conveying pipe (4). The lower end of the installation bin (11) is connected to the reflux pipe (15), and the lower end of the reflux pipe (15) is connected to the filtering and reflux component (3). The inner wall of the installation bin (11) is connected to the regulable blowing assistance switch component (2), and the middle of the top cover (12) is connected to the regulable blowing assistance switch component (2); The regulable blowing assistance switch component (2) includes a blowing assistance automatic switch component (21) and a self-regulating component (22). The blowing assistance automatic switch component (21) is connected to the inner wall of the installation bin (11). The upper end of the blowing assistance automatic switch component (21) is connected to the self-regulating component (22). The upper end of the self-regulating component (22) passes through the top cover (12) and is connected to the top cover (12); The blowing assistance automatic switch component (21) includes a piston (211), a ventilation hole (212), a limit stop block (213), and an anti-bottom-touching stop block (214). The piston (211) is limited and slidably connected to the inside of the installation bin (11). A ventilation hole (212) is opened at the lower end of the piston (211). A limit stop block (213) is fixedly connected to the inner wall of the installation bin (11) above the piston (211). A plurality of anti-bottom-touching stop blocks (214) are fixedly connected to the inner bottom of the installation bin (11). The top of the piston (211) is connected to the lower end of the self-regulating component (22); The self-adjusting component (22) includes a sliding column (221), a sliding tube (222) and a spring (223). The top of the piston (211) is fixedly connected to the sliding column (221). The upper end of the sliding column (221) is inserted into the interior of the sliding tube (222). The sliding tube (222) passes through the upper end of the top cover (12), and the lower end of the sliding tube (222) is threadedly connected to the top cover (12). A spring (223) is fixedly connected between the inner top of the sliding tube (222) and the piston (211). The sliding column (221) is located inside the spring (223).

2. The intelligent slug former for long-distance plug flow pneumatic conveying according to claim 1, wherein The spring (223) is always in a compressed deformation state.

3. The intelligent slug former for long-distance plug flow pneumatic conveying according to claim 2, wherein The filtering and refluxing component (3) includes a Y-shaped tube (31), a filter element (32), a threaded cap (33) and a sealing cover (34). The lower end of the reflux pipe (15) is fixedly connected to the Y-shaped tube (31). The lower end of the vertical pipe of the Y-shaped tube (31) is fixedly connected to the pneumatic conveying pipe (4). The installation bin (11) and the pneumatic conveying pipe (4) are connected and communicated through the Y-shaped tube (31). A filter element (32) is fixedly connected inside the upper end of the vertical pipe of the Y-shaped tube (31). A threaded cap (33) is fixedly connected to the lower side wall of the filter element (32). The upper part of the filter element (32) is connected and communicated with the threaded cap (33). The threaded cap (33) is located inside the inclined pipe of the Y-shaped tube (31). The lower end of the inclined pipe of the Y-shaped tube (31) is fixedly connected to the sealing cover (34).

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