Concrete mixing plant air circuit system

Abstract

The utility model provides a kind of concrete mixing station gas path system, including storage tank, the bottom end of storage tank is equipped with discharge gate, the lower part and bottom end of storage tank are respectively fixed with first arch breaking device and second arch breaking device, the first arch breaking device includes multiple air nozzles, multiple air nozzles are evenly arranged along the circumference of the storage tank, and the output end of each air nozzle extends to the inside of the storage tank by passing through the lateral wall of the storage tank, second arch breaking device includes the air rod of being arranged in the inside one side of discharge gate, the drive part for driving the air rod rotates along the center axis of discharge gate, the side of the storage tank is equipped with gas supply device, and the gas supply device is connected with the first arch breaking device and second arch breaking device respectively.The utility model, by first arch breaking device and second arch breaking device cooperation, arch breaking is carried out from inside storage tank and discharge gate two places, effectively prevent material caking and blockage, ensure that concrete mixing station feeding is continuous and stable.

Description

Technical Field

[0001] This utility model relates to the field of concrete production technology, and in particular to an air circuit system for a concrete mixing plant. Background Technology

[0002] Before preparing concrete, powdered raw materials such as sand, gravel, lime, and cinder need to be thoroughly mixed. After the three are fully mixed, water and admixtures are added and mixed to form concrete. Typically, sand, gravel, lime, and cinder are stored separately in three independent storage cylinders with funnel-shaped bottoms. During the discharge process, powdered raw materials are prone to arching, leading to poor material flow, blockages, and reduced conveying efficiency. Utility Model Content

[0003] The main objective of this invention is to provide a pneumatic system for a concrete mixing plant to solve the problem in the prior art where powdered raw materials tend to form bridging during the discharge process, leading to poor material flow, blockage, and reduced conveying efficiency.

[0004] To solve the above problems, this utility model adopts the following technical solution: a gas circuit system for a concrete mixing plant, including a storage tank, with a discharge port at the bottom end of the storage tank. A first arch-breaking device and a second arch-breaking device are respectively fixed at the lower part and bottom end of the storage tank. The first arch-breaking device includes multiple air nozzles, which are evenly arranged around the circumference of the storage tank, and the output end of each air nozzle extends through the side wall of the storage tank into the interior of the storage tank. The second arch-breaking device includes a venting rod disposed on one side inside the discharge port and a driving part for driving the venting rod to rotate along the central axis of the discharge port. An air supply device is provided on one side of the storage tank, and the air supply device is connected to the first arch-breaking device and the second arch-breaking device.

[0005] Furthermore, the driving unit includes a box body fixed to the bottom of the storage tank. A through hole is provided on one side of the box body corresponding to the discharge port. A toothed ring is fitted on the outside of the through hole. The toothed ring is rotatably connected to the box body through a rotating assembly. The bottom end of the vent rod is fixedly connected to the inner wall of the toothed ring. A gear that meshes with the toothed ring is also rotatably arranged inside the box body. A first motor for driving the gear to rotate is provided on the outside of the box body.

[0006] Furthermore, a ring sleeve is fixedly provided on the inner wall of the toothed ring, the vent rod is fixedly connected to the inner wall of the ring sleeve, and the rotating assembly includes an upper bearing and a lower bearing respectively fixedly sleeved at both ends of the ring sleeve. The outer walls of the upper bearing and the lower bearing are fixedly connected to the top and bottom surfaces of the box body.

[0007] Furthermore, a rotating ring is fixedly provided at the bottom end of the venting rod, and a fixed ring is fixedly provided on the bottom surface of the box body. The fixed ring is sleeved on the outside of the rotating ring and is sealed to the rotating ring. A first ventilation space is provided inside the rotating ring, and a second ventilation space is formed between the inner wall of the rotating ring and the fixed ring. The first ventilation space is connected to the second ventilation space and the venting rod respectively. One of the output ends of the air supply device is connected to the second ventilation space.

[0008] Furthermore, the air supply device includes an air compressor, a first connecting pipe, and a second connecting pipe. The first connecting pipe is connected to a plurality of air nozzles, and the second connecting pipe is connected to the second ventilation space.

[0009] Furthermore, an air storage tank is provided between the air compressor and the storage tank. The air compressor is connected to the air storage tank through a third connecting pipe. One end of the first connecting pipe and the second connecting pipe are respectively connected to the air storage tank. The other end of the first connecting pipe and the second connecting pipe are respectively connected to a plurality of air nozzles and the second ventilation space. A solenoid valve is also provided at one end of the first connecting pipe and the second connecting pipe.

[0010] Furthermore, a water vapor separator is also provided on the third connecting pipe.

[0011] Furthermore, each of the air nozzles is fixed with a three-way connector at the end away from the storage tank, and two adjacent air nozzles are connected by a first branch pipe. One end of the first connecting pipe is connected to the air storage tank, and the other end of the first connecting pipe is connected to one of the first branch pipes.

[0012] The beneficial effects of this utility model are:

[0013] 1. By cooperating with the first and second arch-breaking devices, arch breaking is carried out from both inside the storage tank and the discharge port, effectively preventing material caking and blockage, ensuring continuous and stable material supply to the concrete mixing plant, greatly improving production efficiency, and reducing equipment failures and downtime caused by material blockage. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a side view of the air supply system for the concrete mixing plant of this utility model.

[0016] Figure 2 This is a breaking view of the second arch-breaking device of this utility model;

[0017] Figure 3This is an exploded structural diagram of the second arch-breaking device of this utility model.

[0018] Explanation of reference numerals in the attached figures

[0019] 1. Storage tank; 11. Discharge port; 2. First arch-breaking device; 21. Air nozzle; 3. Second arch-breaking device; 31. Ventilation rod; 32. Drive unit; 321. Box body; 3211. Through hole; 322. Gear ring; 323. Gear; 324. First motor; 325. Ring sleeve; 326. Upper bearing; 327. Lower bearing; 328. Rotating ring; 3281. Ventilation hole; 3282. First ventilation space; 329. Fixed ring; 3291. Second ventilation space; 4. Air supply device; 41. Air compressor; 42. First connecting pipe; 43. Second connecting pipe; 44. T-connector; 45. First branch pipe; 46. Air storage tank; 47. Solenoid valve; 48. Water-vapor separator. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] Please see Figures 1 to 3 As shown, a pneumatic system for a concrete mixing plant includes a storage tank 1, a first arch-breaking device 2, a second arch-breaking device 3, and an air supply device 4. The storage tank 1 has a discharge port 11 at its bottom for discharging materials. The first arch-breaking device 2 includes multiple air nozzles 21, which are evenly arranged around the circumference of the storage tank 1. The output end of each air nozzle 21 extends through the side wall of the storage tank 1 into the interior of the storage tank 1 to break up material agglomerates by airflow into the tank through the multiple air nozzles 21. The second arch-breaking device 3 includes a venting rod 31 disposed inside one side of the discharge port 11 and a driving part 32 for driving the venting rod 31 to rotate along the central axis of the discharge port 11. An air nozzle 21 is connected to the upper part of the venting rod 31. An air supply device 4 is disposed on one side of the storage tank 1 and is connected to the first arch-breaking device 2 and the second arch-breaking device 3 respectively. It is used to provide high-pressure gas to the first arch-breaking device 2 and the second arch-breaking device 3 to prevent the material in the storage tank 1 from caking and the discharge port 11 from being blocked, thereby ensuring the continuity and stability of the concrete mixing plant's material supply, improving production efficiency, and reducing equipment failures and downtime caused by material blockage.

[0022] During implementation, when the material in the storage tank 1 clumps or the discharge port 11 shows signs of blockage, the air supply device 4 is activated, supplying air to the air nozzles 21 of the first arch-breaking device 2 and the air venting rods 31 of the second arch-breaking device 3. Multiple air nozzles 21 spray air into the storage tank 1, breaking up the clumps. The air venting rods 31 rotate under the action of the drive unit 32, simultaneously spraying air to better remove blockages near the discharge port 11, ensuring smooth material discharge. It should be noted that the aforementioned air nozzles 21 are existing technology; they can both inject high-pressure air into the storage tank 1 and prevent dust from entering the air nozzles 21, which will not be elaborated further here.

[0023] In this embodiment, the drive unit 32 includes a box body 321 (with a receiving space inside the box body) fixed to the bottom end of the storage tank 1. A through hole 3211 is opened on one side of the box body 321 corresponding to the discharge port 11. A toothed ring 322 is sleeved on the outside of the through hole 3211. The toothed ring 322 is rotatably connected to the box body 321 through a rotating assembly. The bottom end of the vent rod 31 is fixedly connected to the inner wall of the toothed ring 322. A gear 323 that meshes with the toothed ring 322 is also rotatably arranged inside the box body 321. A first motor 324 for driving the gear 323 to rotate is provided on the outside of the box body 321. When the second arch-breaking device 3 needs to be activated, the first motor 324 is powered on and drives the gear 323 to rotate. Since the gear 323 meshes with the gear ring 322, the gear ring 322 rotates around the central axis of the discharge port 11, thereby driving the air rod 31, which is fixedly connected to the gear ring 322, to rotate. At the same time, compressed air is provided to the air rod 31 through the air supply device 4, so that the air rod 31 rotates and jets to break the arch in the discharge port 11.

[0024] In this embodiment, a ring sleeve 325 is fixedly mounted on the inner wall of the toothed ring 322. The venting rod 31 is fixedly connected to the inner wall of the ring sleeve 325. The rotating assembly includes an upper bearing 326 and a lower bearing 327 fixedly mounted on both ends of the ring sleeve 325. The outer walls of the upper bearing 326 and the lower bearing 327 are fixedly connected to the top and bottom surfaces of the housing 321. In practice, when the toothed ring 322 rotates, the ring sleeve 325 rotates together with the toothed ring 322. Due to the supporting effect of the upper bearing 326 and the lower bearing 327, the ring sleeve 325 can rotate stably around its own axis, thereby driving the venting rod 31 connected to it to rotate smoothly, reducing shaking and friction during rotation.

[0025] Specifically, a rotating ring 328 is fixedly provided at the bottom end of the ventilation rod 31, and a fixed ring 329 is fixedly provided on the bottom surface of the box 321. The fixed ring 329 is sleeved 325 on the outside of the rotating ring 328 and is sealed to the rotating ring 328. A first ventilation space 3282 is provided inside the rotating ring 328. A second ventilation space 3291 is formed between the inner walls of the rotating ring 328 and the fixed ring 329. The first ventilation space 3282 is connected to the second ventilation space 3291 and the ventilation rod 31 respectively. One of the output ends of the air supply device 4 is connected to the second ventilation space 3291 to supply air to the ventilation rod 31.

[0026] In practice, the gas supplied by the gas supply device 4 enters the second ventilation space 3291. Due to the sealed connection between the rotating ring 328 and the fixed ring 329, the gas can only enter the ventilation rod 31 through the first ventilation space 3282, and then be ejected from the outlet of the ventilation rod 31. This ensures a continuous and stable gas supply during the rotation of the ventilation rod 31. It should be noted that a ventilation hole 3281 is provided on one side of the rotating ring 328 to connect the first ventilation space 3282 and the second ventilation space 3291.

[0027] In this embodiment, the air supply device 4 includes an air compressor 41, a first connecting pipe 42, and a second connecting pipe 43. The first connecting pipe 42 is connected to multiple air nozzles 21 for supplying air to the first arch-breaking device 2, and the second connecting pipe 43 is connected to the second ventilation space 3291 for supplying air to the second arch-breaking device 3. Specifically, the air compressor 41 generates compressed air, which is then delivered to the first arch-breaking device 2 and the second arch-breaking device 3 via the first connecting pipe 42 and the second connecting pipe 43. Specifically, each air nozzle 21 has a three-way connector 44 fixed at the end furthest from the storage tank 1. Adjacent air nozzles 21 are connected via first branch pipes 45. One end of the first connecting pipe 42 is connected to the air storage tank 46, and the other end of the first connecting pipe 42 is connected to one of the first branch pipes 45.

[0028] Preferably, an air storage tank 46 is also provided between the air compressor 41 and the storage tank 1. The air compressor 41 is connected to the air storage tank 46 through a third connecting pipe. One end of the first connecting pipe 42 and the second connecting pipe 43 are respectively connected to the air storage tank 46, and the other end of the first connecting pipe 42 and the second connecting pipe 43 are respectively connected to multiple air nozzles 21 and the second ventilation space 3291. Solenoid valves 47 are also provided at one end of the first connecting pipe 42 and the second connecting pipe 43. By setting up the air storage tank 46, the air supply pressure is buffered and stabilized, avoiding air supply pressure fluctuations caused by unstable operation or start-stop of the air compressor 41, ensuring that the arch-breaking device can work continuously and stably, and improving the reliability and stability of the air circuit system. By setting up the solenoid valve 47, the gas flow in the first arch-breaking device 2 and the second arch-breaking device 3 can be controlled, and the arch-breaking range and intensity can be flexibly adjusted.

[0029] Preferably, the third connecting pipe is also equipped with a water vapor separator 48. The water vapor separator 48 can effectively remove moisture and impurities from the compressed air, preventing these substances from corroding and clogging the components such as the air nozzle 21 and the air rod 31 of the arch breaking device, extending the service life of the equipment, and ensuring the jetting effect of the arch breaking device, thereby improving the arch breaking efficiency.

[0030] In a specific implementation of this utility model, the air compressor 41 is started, and the compressed air is stored in the air storage tank 46 after the water vapor separator 48 removes moisture and impurities. When the material in the storage tank 1 shows signs of clumping or the discharge port 11 shows signs of blockage, on the one hand, the compressed air in the air storage tank 46 enters each of the air nozzles 21 of the first arch-breaking device 2 through the first connecting pipe 42 and the first branch pipe 45, and sprays air into the storage tank 1 to break up the clumped material inside; on the other hand, another path of compressed air from the air storage tank 46 enters the second ventilation space 3291 of the second arch-breaking device 3 through the second connecting pipe 43, and then enters the ventilation rod 31 through the first ventilation space 3282. At the same time, the first motor 324 drives the gear 323 to rotate, and the gear 323 drives the meshing gear ring 322 to rotate, thereby causing the ventilation rod 31 to rotate and spray air in the discharge port 11, breaking up the blockage near the discharge port 11.

[0031] The above description is only a preferred embodiment of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. A pneumatic system for a concrete mixing plant, comprising a storage tank, wherein the bottom end of the storage tank is provided with a discharge port, characterized in that, The lower part and bottom end of the storage tank are respectively fixed with a first arch-breaking device and a second arch-breaking device. The first arch-breaking device includes multiple air nozzles, which are evenly arranged around the circumference of the storage tank, and the output end of each air nozzle extends through the side wall of the storage tank into the interior of the storage tank. The second arch-breaking device includes a venting rod disposed on one side inside the discharge port and a driving part for driving the venting rod to rotate along the central axis of the discharge port. An air supply device is provided on one side of the storage tank, and the air supply device is connected to the first arch-breaking device and the second arch-breaking device respectively.

2. The air supply system for a concrete mixing plant according to claim 1, characterized in that, The drive unit includes a box body fixed to the bottom of the storage tank. A through hole is provided on one side of the box body corresponding to the discharge port. A toothed ring is fitted on the outside of the through hole. The toothed ring is rotatably connected to the box body through a rotating assembly. The bottom end of the vent rod is fixedly connected to the inner wall of the toothed ring. A gear that meshes with the toothed ring is also rotatably arranged inside the box body. A first motor for driving the gear to rotate is provided on the outside of the box body.

3. The air supply system for a concrete mixing plant according to claim 2, characterized in that, A ring sleeve is fixedly provided on the inner wall of the toothed ring, and the venting rod is fixedly connected to the inner wall of the ring sleeve. The rotating assembly includes an upper bearing and a lower bearing respectively fixedly sleeved at both ends of the ring sleeve. The outer walls of the upper bearing and the lower bearing are fixedly connected to the top and bottom surfaces of the box body.

4. The air supply system for a concrete mixing plant according to claim 3, characterized in that, A rotating ring is fixedly provided at the bottom end of the ventilation rod, and a fixed ring is fixedly provided on the bottom surface of the box. The fixed ring is sleeved on the outside of the rotating ring and is sealed to the rotating ring. A first ventilation space is provided inside the rotating ring, and a second ventilation space is formed between the inner wall of the rotating ring and the fixed ring. The first ventilation space is connected to the second ventilation space and the ventilation rod respectively. One of the output ends of the air supply device is connected to the second ventilation space.

5. The air supply system for a concrete mixing plant according to claim 4, characterized in that, The air supply device includes an air compressor, a first connecting pipe and a second connecting pipe. The first connecting pipe is connected to a plurality of air nozzles, and the second connecting pipe is connected to the second ventilation space.

6. The air supply system for a concrete mixing plant according to claim 5, characterized in that, An air storage tank is also provided between the air compressor and the storage tank. The air compressor is connected to the air storage tank through a third connecting pipe. One end of the first connecting pipe and the second connecting pipe are respectively connected to the air storage tank. The other end of the first connecting pipe and the second connecting pipe are respectively connected to a plurality of air nozzles and the second ventilation space. A solenoid valve is also provided at one end of the first connecting pipe and the second connecting pipe.

7. The air supply system for a concrete mixing plant according to claim 6, characterized in that, The third connecting pipe is also equipped with a water vapor separator.

8. The air supply system for a concrete mixing plant according to claim 6, characterized in that, Each of the air nozzles is fixed with a three-way connector at the end away from the storage tank. Two adjacent air nozzles are connected by a first branch pipe. One end of the first connecting pipe is connected to the air storage tank, and the other end of the first connecting pipe is connected to one of the first branch pipes.

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