Dust granulation, recovery and dust removal device

Abstract

The utility model discloses a dust pelletizing, recycling and dust removing device which comprises a dust removing mechanism used for removing dust in gas; the feeding mechanism is used for conveying dust, and a feeding port of the feeding mechanism is connected with a dust outlet of the dust removal mechanism; the granulating mechanism is used for pressing the dust into granules, and a feeding port of the granulating mechanism is connected with a discharging port of the feeding mechanism; the conveying mechanism is used for conveying and recycling particles pressed by the granulating mechanism, and a feeding port of the conveying mechanism is connected with a discharging port of the granulating mechanism; the exhaust mechanism is used for exhausting gas passing through the dust removal mechanism, and a gas inlet of the exhaust mechanism is connected with a gas outlet of the dust removal mechanism. The dust removal device provided by the utility model can be used for pressing collected dust into large-particle-size particles which are directly used as raw materials for recycling, so that reentrainment of dust is avoided, the dust does not need to be conveyed to other places through pneumatic conveying or dust suction and discharge tank trucks for additional treatment, the treatment mode is simple and efficient, and the dust removal device is particularly suitable for dust removal of remote transfer stations.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial dust removal, in particular to a dust granulation recovery and dust removal device. Background Art

[0002] Currently, dust collected by industrial dust removal systems is generally treated centrally or recycled on-site. Centralized treatment involves transporting dust to a designated location for centralized treatment using machinery, vehicles, or pneumatic conveying. These methods primarily include humidification followed by truck transportation, extraction by suction tank trucks, and pneumatic conveying with silo pumps. Humidification followed by truck transportation and extraction by suction tank trucks require long-term investment in personnel and vehicles, and they also generate secondary dust, causing varying degrees of environmental pollution at both the discharge and receiving points. Pneumatic conveying with silo pumps also requires significant initial investment and frequent maintenance of the ash conveying pipelines. Damage to the pipelines can cause dust to erupt, causing serious environmental pollution.

[0003] Currently, independent transfer stations in remote areas primarily use on-site dust collection to dispose of dust. On-site collection involves unloading dust directly onto conveyors or into silos. This approach offers the advantages of requiring less processing facilities, requiring less investment, and simplifying maintenance. However, on-site collection has the following disadvantages: The recovered dust is prone to secondary dust generation during transfer, which is then drawn into the dust collector for further processing, significantly reducing dust removal efficiency. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the technical problem to be solved by the present invention is how to avoid the phenomenon of secondary dusting during the dust treatment process, improve the dust removal efficiency, and save equipment and operation costs.

[0005] In order to solve the above problems, the utility model provides a dust granulation recovery and dust removal device, comprising:

[0006] A dust removal mechanism, for removing dust from the gas, the dust removal mechanism having an air inlet, an air outlet, and an ash outlet;

[0007] A feeding mechanism, used for conveying dust, wherein the feeding port of the feeding mechanism is connected to the dust outlet of the dust removal mechanism;

[0008] A granulating mechanism, used for pressing dust into granules, wherein the feed port of the granulating mechanism is connected to the discharge port of the feeding mechanism;

[0009] A conveying mechanism, used for conveying and recovering the pellets pressed by the granulating mechanism, wherein the feed port of the conveying mechanism is connected to the discharge port of the granulating mechanism;

[0010] The exhaust mechanism is used to discharge the gas passing through the dust removal mechanism, and the air inlet of the exhaust mechanism is connected to the air outlet of the dust removal mechanism.

[0011] The dust removal device provided by the utility model can press the collected dust into particles of large size, which can be directly reused as raw materials, avoiding secondary dusting. There is no need for pneumatic conveying or dust suction tank trucks to send the dust to other places for separate treatment. The treatment method is simple and efficient, and is particularly suitable for dust removal in remote transfer stations.

[0012] Furthermore, the dust granulation, recovery and dust removal device further includes a water inlet pipe and a bypass pipe. The water inlet pipe and the bypass pipe are connected in parallel. The outlet of the water inlet pipe is connected to the granulation mechanism for adding water to the granulation mechanism. The water inlet pipe is provided with a regulating valve, and the bypass pipe is provided with an on-off valve. Water can be added during granulation according to the dust state to meet the requirements of granulation pressing.

[0013] Furthermore, the dust removal mechanism is selected from one of a filter dust collector, an electrostatic dust collector, a gravity dust collector, an inertial dust collector, and a cyclone dust collector. The dust removal mechanism is used to separate dust from dust-laden gas to obtain clean gas.

[0014] Furthermore, an ash hopper is provided at the lower part of the dust removal mechanism, and a gate valve is provided at the ash outlet of the ash hopper. The ash hopper is used to collect the separated dust and discharge it to the feeding mechanism as needed.

[0015] Furthermore, the feeding mechanism includes a star-shaped ash discharge valve and an inspection pipe. The star-shaped ash discharge valve is connected to the ash outlet of the dust removal mechanism. The inspection pipe is provided with an inspection port, and its two ends are respectively connected to the star-shaped ash discharge valve and the granulation mechanism. The feeding mechanism can continuously and evenly supply dust material to the granulation mechanism; the inspection pipe facilitates the inspection of easily clogged areas.

[0016] Furthermore, the conveying mechanism is selected from a group consisting of a tube chain conveyor, a screw conveyor, a buried scraper conveyor, and a bucket elevator. The conveying mechanism can convey the pellets pressed and formed by the granulating mechanism to the receiving mechanism.

[0017] Furthermore, the exhaust mechanism includes a fan and an exhaust pipe, wherein the inlet of the fan is connected to the air outlet of the dust removal mechanism, and the outlet of the fan is connected to the exhaust pipe. The fan provides power for gas transportation, and the clean gas passing through the dust removal mechanism is discharged into the atmosphere through the exhaust pipe.

[0018] Furthermore, the dust granulation, recycling, and dust removal device further includes a weighing mechanism and a receiving mechanism. The weighing mechanism is used to weigh the granules pressed by the granulation mechanism. The discharge port of the conveying mechanism is connected to the feed port of the weighing mechanism, and the discharge port of the weighing mechanism is connected to the receiving mechanism. The large dust particles produced are weighed by the weighing mechanism and finally delivered to the receiving mechanism for direct use as raw material.

[0019] Furthermore, the weighing mechanism includes a belt scale and a sealed cover, wherein the belt scale is disposed in the sealed cover, and the feed port of the sealed cover is connected to the discharge port of the conveying mechanism. The weighing operation is performed in the sealed cover to prevent dust from leaking out.

[0020] Furthermore, the material receiving mechanism is a belt conveyor or a silo. The produced granular material can be recycled as raw material.

[0021] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) The dust removal device of the utility model has the functions of dust collection and granulation recovery. Compared with the traditional on-site dust recovery method, it solves the problem of secondary dust pollution and improves the dust removal efficiency.

[0023] (2) Compared with the centralized treatment system, the dust removal device of the utility model eliminates the need for transport vehicles or pneumatic conveying devices, reduces the primary investment, does not require operators for daily operation, and has a small maintenance workload, thus having a significant cost advantage.

[0024] (3) The dust granulation, recycling and dust removal device of the utility model can granulate the dust collected in the transfer station and unload it into the collecting mechanism, which can be directly used in the next production process, saving production resources and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the dust granulation, recovery and dust removal device in an embodiment of the present utility model.

[0026] Description of reference numerals:

[0027] 1-dust removal mechanism, 11-filter unit, 12-purge device, 13-ash hopper, 14-gate valve, 21-star-shaped ash discharge valve, 22-inspection pipe, 3-granulation mechanism, 41-water inlet pipe, 42-bypass pipe, 43-regulating valve, 44-first on-off valve, 45-second on-off valve, 5-conveying mechanism, 61-fan, 62-exhaust pipe, 7-weighing mechanism, 8-material receiving mechanism. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0029] It should be understood that the terms used in this disclosure are intended solely to describe particular embodiments and are not intended to limit the disclosure. Furthermore, for numerical ranges used in this disclosure, it should be understood that each intermediate value between the upper and lower limits of that range is also specifically disclosed. Each smaller range between any stated value or stated range, as well as any other stated value or intermediate value within that stated range, is also encompassed within this disclosure. The upper and lower limits of these smaller ranges may independently be included or excluded within the range.

[0030] It will be apparent to those skilled in the art that various modifications and variations may be made to the specific embodiments described herein without departing from the scope or spirit of the present invention. Other embodiments derived from the present invention will be apparent to those skilled in the art. The present description and examples are intended to be illustrative only.

[0031] Combine Figure 1 As shown, this embodiment provides a dust granulation recovery and dust removal device, including a dust removal mechanism 1, a feeding mechanism, a granulation mechanism 3, a conveying mechanism 5, an exhaust mechanism, a weighing mechanism 7 and a receiving mechanism 8. The dust removal mechanism 1 is used to remove dust from the gas, and the dust removal mechanism 1 has an air inlet, an air outlet and an ash outlet; the feeding mechanism is used to transport dust, and the feeding port of the feeding mechanism is connected to the ash outlet of the dust removal mechanism 1; the granulating mechanism 3 is used to press the dust into particles, and the feeding port of the granulating mechanism 3 is connected to the outlet of the feeding mechanism. The dust collected by the dust removal mechanism 1 is continuously and evenly transported to the granulating mechanism 3 through the feeding mechanism, and the granulating mechanism 3 presses the dust ash with extremely small particle size into particles with larger particle size; the conveying mechanism 5 is used to transport and recover the particles pressed by the granulating mechanism 3, and the feeding port of the conveying mechanism 5 is connected to the outlet of the granulating mechanism 3; the weighing mechanism 7 is used to weigh the particles pressed by the granulating mechanism 3, and the outlet of the conveying mechanism 5 is connected to the feeding port of the weighing mechanism 7; the outlet of the weighing mechanism 7 is connected to the receiving mechanism 8, and the receiving mechanism 8 is used to recover the pressed particles, which can be directly used as raw materials.

[0032] The above-mentioned dust granulation recovery and dust removal device can realize the collection and reuse of industrial dust. The dust is collected by the dust removal mechanism 1, and then the collected dust is pressed into large-size particles, which are directly used as raw materials. There is no need for pneumatic conveying or dust suction tank trucks to send the dust ash to other places for separate treatment. The treatment method is simple and efficient, and at the same time avoids secondary dusting, thereby improving the dust removal efficiency.

[0033] Combine Figure 1As shown, in this embodiment, the dust removal mechanism 1 is a filter dust collector. Its dust removal section is equipped with a filter unit 11, a purge device 12 is located above the filter unit 11, and an ash hopper 13 is located below the filter unit 11. The exhaust mechanism includes a fan 61 and an exhaust pipe 62. The inlet of fan 61 is connected to the air outlet of the dust removal mechanism 1, providing power for gas transportation, and the outlet of fan 61 is connected to the exhaust pipe 62. The arrows in the figure indicate the direction of gas flow. Dust-laden gas enters the air inlet of the dust removal mechanism 1, is trapped as it passes through the filter unit 11, and the purified air flows out of the air outlet of the exhaust mechanism, passes through the fan 61, and is discharged into the atmosphere through the exhaust pipe 62. The purge device 12 blows dust from the filter unit 11 into the ash hopper 13, where it is collected. A feeding mechanism is installed below the ash hopper 13. The ash outlet of the ash hopper 13 is equipped with a gate valve 14, which allows for the selection of discharge time based on the dust collection status. In other embodiments, the dust removal mechanism 1 may also be a dry dust collector such as a gravity dust collector, an electrostatic dust collector, an inertial dust collector, or a cyclone dust collector.

[0034] In this embodiment, the feeding mechanism includes a star-shaped ash discharge valve 21 and an inspection pipe 22. The star-shaped ash discharge valve 21 is connected to the ash outlet of the ash hopper 13. The two ends of the inspection pipe 22 are respectively connected to the star-shaped ash discharge valve 21 and the granulating mechanism 3. The feeding mechanism can continuously and evenly supply dust material to the granulating mechanism 3. The inspection pipe 22 is provided with an inspection port to facilitate maintenance of easily clogged areas.

[0035] The granulation mechanism 3 is used to compress the dust provided by the feeding mechanism into granules. In this embodiment, the dust removal device also includes a water inlet pipe 41, the outlet of which is connected to the granulation mechanism 3. Water can be added during granulation to meet the pressing requirements based on the dust state. The water inlet pipe 41 is equipped with a regulating valve 43 and a first on-off valve 44, which can open and close the water inlet pipe 41 and adjust the water intake as needed. Preferably, the dust removal device also includes a bypass pipe 42 connected in parallel with the water inlet pipe 41, and a second on-off valve 45 is provided on the bypass pipe 42. When the pipe or valve of the water inlet pipe 41 needs to be repaired or replaced, a backup bypass line can be activated.

[0036] The feed inlet of the conveying mechanism 5 is connected to the discharge outlet of the granulating mechanism 3, enabling uniform and continuous conveyance of the granular material. In this embodiment, the conveying mechanism 5 is a tube chain conveyor, which is characterized by being able to elevate the material during conveyance and allowing the discharge outlet to be higher than the feed inlet, facilitating equipment installation and layout. In other embodiments, the conveying mechanism 5 may also be a screw conveyor, a buried scraper, a bucket elevator, or other material conveying device.

[0037] The weighing mechanism 7 comprises a belt scale and a sealed enclosure. The belt scale is housed within the sealed enclosure, with the inlet of the sealed enclosure connected to the outlet of the conveying mechanism 5. Weighing is performed within the sealed enclosure to prevent dust leakage. In this embodiment, the material receiving mechanism 8 is a belt conveyor. The produced granular material is weighed by the weighing mechanism 7 and then delivered to the belt conveyor for direct return to the production line for use as raw material. In other embodiments, the material receiving mechanism 8 can also be a silo to recycle the granular material as raw material.

[0038] The dust removal device provided in the above embodiment is particularly suitable for production scenarios such as remote transfer stations. These transfer stations are far from centralized production equipment, making dust collection pipes too far away and causing significant resistance and loss, making dust removal ineffective. Building a separate dust removal system requires a complete set of dust unloading and conveying equipment, resulting in high initial investment and maintenance costs. However, using a dust granulation and recovery dust removal device, dust collected at the transfer station can be granulated and discharged onto a conveyor belt for direct use in the next production process, saving production resources and improving production efficiency.

[0039] Although the present invention is disclosed as above, the scope of protection of the present invention is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A dust granulation recovery and dust removal device, characterized in that: include: A dust removal mechanism (1) is used to remove dust from the gas, and the dust removal mechanism (1) has an air inlet, an air outlet, and an ash outlet; A feeding mechanism for conveying dust, wherein the feeding port of the feeding mechanism is connected to the dust outlet of the dust removal mechanism (1); A granulating mechanism (3) is used to press the dust into granules, wherein the feed port of the granulating mechanism (3) is connected to the discharge port of the feeding mechanism; A conveying mechanism (5) is used for conveying and recovering the granules pressed by the granulating mechanism (3), wherein the feed port of the conveying mechanism (5) is connected to the discharge port of the granulating mechanism (3); An exhaust mechanism is used to discharge the gas passing through the dust removal mechanism (1), and an air inlet of the exhaust mechanism is connected to an air outlet of the dust removal mechanism (1).

2. The dust granulation, recovery and dust removal device according to claim 1, characterized in that: The invention also comprises a water inlet pipe (41) and a bypass pipe (42), wherein the water inlet pipe (41) and the bypass pipe (42) are connected in parallel, and the outlet of the water inlet pipe (41) is connected to the granulating mechanism (3) for adding water into the granulating mechanism (3), and a regulating valve (43) is provided on the water inlet pipe (41), and an on-off valve is provided on the bypass pipe (42).

3. The dust granulation, recovery and dust removal device according to claim 1, characterized in that: The dust removal mechanism (1) is selected from one of a filter dust collector, an electrostatic dust collector, a gravity dust collector, an inertial dust collector, and a cyclone dust collector.

4. The dust granulation, recovery and dust removal device according to claim 3, characterized in that: An ash hopper (13) is provided at the lower part of the dust removal mechanism (1), and a plug valve (14) is provided at the ash outlet of the ash hopper (13).

5. The dust granulation, recovery and dust removal device according to claim 1, characterized in that: The feeding mechanism comprises a star-shaped ash discharge valve (21) and an inspection pipe (22); the star-shaped ash discharge valve (21) is connected to the ash outlet of the dust removal mechanism (1); the inspection pipe (22) is provided with an inspection port; and both ends of the inspection pipe (22) are respectively connected to the star-shaped ash discharge valve (21) and the granulating mechanism (3).

6. The dust granulation, recovery and dust removal device according to claim 1, characterized in that: The conveying mechanism (5) is selected from one of a tube chain conveyor, a screw conveyor, a buried scraper conveyor, and a bucket elevator.

7. The dust granulation, recovery and dust removal device according to claim 1, characterized in that: The exhaust mechanism comprises a fan (61) and an exhaust pipe (62); the inlet of the fan (61) is connected to the air outlet of the dust removal mechanism (1); and the outlet of the fan (61) is connected to the exhaust pipe (62).

8. The dust granulation, recovery and dust removal device according to any one of claims 1 to 7, characterized in that: The invention also includes a weighing mechanism (7) and a receiving mechanism (8), wherein the weighing mechanism (7) is used to weigh the granules pressed by the granulating mechanism (3), the discharge port of the conveying mechanism (5) is connected to the feed port of the weighing mechanism (7), and the discharge port of the weighing mechanism (7) is connected to the receiving mechanism (8).

9. The dust granulation, recovery and dust removal device according to claim 8, characterized in that: The weighing mechanism (7) comprises a belt scale and a sealing cover, wherein the belt scale is arranged in the sealing cover, and the feed port of the sealing cover is connected to the discharge port of the conveying mechanism (5).

10. The dust granulation, recovery and dust removal device according to claim 8, characterized in that: The material receiving mechanism (8) is a belt conveyor or a silo.

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