A dust removal and return system for a roller kiln

Abstract

The utility model discloses a kind of for roll kiln's bowl loading dust removal return system, belong to powder material production equipment technical field, to solve the problem of serious dust pollution in existing bowl loading process, material recycling rate is low and influence product batch consistency. Bowl loading dust removal return system includes dust removal component and return component;Dust removal component includes dust removal air pipe, dust collector and powder collecting tank, dust removal air pipe is used to transport dust-containing air, dust collector is used to separate dust from air, powder collecting tank is used to store separated dust;Return component includes conveying device and conveying pipeline, conveying pipeline is used to convey dust from powder collecting tank to bowl loading bin, conveying device is used to drive dust to move in conveying pipeline. The utility model realizes closed loop recycling of material, improves material utilization, operating environment cleanliness and product batch consistency.

Description

Technical Field

[0001] This utility model relates to the technical field of powder material production equipment, and in particular to a potting dust removal and return feeding system for roller kilns. Background Technology

[0002] In the sintering production of powder materials such as positive and negative electrode materials for batteries, roller kilns are commonly used for high-temperature treatment, and saggers are used to hold the materials. During the process of loading powder materials into the saggers, existing technologies typically employ open or semi-open loading stations. As the material falls through the feed inlet into the moving sagger below, the impact and dispersion of the material generate a large amount of dust. This dust flies around the workstation, not only causing valuable material loss and increasing production costs, but also seriously polluting the workshop environment and posing a potential threat to the health of operators.

[0003] To address dust issues, some existing equipment is equipped with dust collection systems, such as dust collection hoods connected to dust collectors above workstations. While these systems can collect some dust and improve the environment, the collected dust is often discharged or treated as waste, failing to achieve effective recycling. In situations where material utilization or product consistency requirements are high, it is necessary to add back the dust generated in the current batch. Currently, this refilling process is mostly done manually, with operators periodically adding the collected dust to the filling line. This method is not only inefficient and increases labor costs, but also makes it difficult to accurately control the amount and timing of refilling, easily introducing errors and making it difficult to guarantee the consistency of weight or composition between product batches.

[0004] Furthermore, dust emissions may obscure detection components such as photoelectric sensors at the caddying station, affecting the metering accuracy and the stability of automated control. Therefore, existing technologies suffer from serious dust pollution, low material recycling rates, and impacts on batch-to-batch product consistency. Utility Model Content

[0005] Based on the above analysis, the present invention aims to provide a dust collection and return system for roller kilns, in order to solve one of the problems of severe dust pollution, low material recycling rate, and impact on product batch consistency.

[0006] The objective of this utility model is mainly achieved through the following technical solutions:

[0007] A dust collection and return system for a roller kiln includes a filling hopper, a dust collection component, and a return component. The dust collection component is used to collect the dust generated during the filling process. The return component is used to transport the dust collected by the dust collection component and return it to the filling process, thereby realizing the recycling of materials.

[0008] The dust removal assembly includes a dust removal duct, a dust collector, and a dust collection tank. The dust removal duct is used to transport dust-laden air, the dust collector is used to separate dust from the air, and the dust collection tank is used to store the separated dust.

[0009] The return feeding assembly includes a conveying device and a conveying pipeline. The conveying pipeline is used to transport dust from the dust collection tank to the filling silo, and the conveying device is used to drive the dust to move within the conveying pipeline.

[0010] Furthermore, it also includes a sagger, and the dust removal assembly also includes a sealing cover and a lifting cylinder; the sealing cover is fixedly installed around the discharge port of the sagger hopper; the lifting cylinder is located below the sagger filling station, and the piston rod of the lifting cylinder is used to lift the sagger so that the top of the sagger contacts the bottom edge of the sealing cover to form a sealed space.

[0011] Furthermore, one end of the dust removal duct is connected to the sealing cover, and the other end is connected to the inlet of the dust collector.

[0012] Furthermore, the dust collection tank is connected to the discharge port of the dust collector.

[0013] Furthermore, the return-to-feed component also includes a control valve.

[0014] Furthermore, a control valve is installed at the bottom outlet of the dust collection tank to control the discharge of dust from the dust collection tank into the conveying pipeline.

[0015] Furthermore, a connection port is provided on the top or side wall of the sealing cover, and the dust removal air pipe is fixedly connected to the connection port.

[0016] Furthermore, the conveying device is installed on the conveying pipeline.

[0017] Furthermore, it also includes a feed pipe, which is connected to the feed inlet of the hopper for conveying materials.

[0018] Furthermore, the dust collector has a discharge port at the bottom, and the dust collection tank is installed below the discharge port.

[0019] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0020] (1) By setting up a dust collection and backfilling system including a dust collection component and a backfilling component, this utility model realizes the automatic collection and backfilling of dust during the filling process, forming a material closed loop, and effectively solves the problems of serious dust pollution, low material recycling rate and the impact on product batch consistency in the prior art.

[0021] (2) The dust removal component of this utility model is equipped with a sealing cover and a lifting cylinder. The lifting cylinder lifts the casket and forms a sealed space with the bottom of the sealing cover, which effectively suppresses the escape of dust during the filling process, improves the workshop working environment, and reduces material loss.

[0022] (3) The dust removal air pipe of this utility model is connected to the sealing cover, and the dust collector is combined with the powder collection tank to realize the effective collection of dust-containing air generated during the filling process and the separation of dust, thereby improving the efficiency and systematicness of dust recovery.

[0023] (4) The return feeding component of this utility model realizes automatic and quantitative dust conveying from the powder collection tank to the filling silo through the cooperation of control valve, conveying device and conveying pipeline, which improves the return feeding accuracy and production efficiency, reduces manual operation and ensures the consistency between product batches.

[0024] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages will become apparent from the description or be learned by practicing this invention. The objectives and other advantages of this invention can be realized and obtained from the details specifically pointed out in the text and accompanying drawings. Attached Figure Description

[0025] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0026] Figure 1 This is a schematic diagram of the structure of the potting dust removal and return feeding system according to an embodiment of this utility model.

[0027] Figure label:

[0028] 1-Packaging bin;

[0029] 2-Dust removal air pipe; 3-Sealing cover; 4-Lifting cylinder; 5-Dust collector; 6-Powder collection tank;

[0030] 7-Control valve; 8-Conveying device; 9-Conveying pipeline;

[0031] 10-Sagger; 11-Feed pipe. Detailed Implementation

[0032] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0033] Example 1

[0034] This embodiment provides a potting dust removal and return feeding system for roller kilns, such as... Figure 1As shown, the potting dust removal and return system includes a dust removal component and a return component. The dust removal component is used to collect the dust generated during the potting process, and the return component is used to transport the dust collected by the dust removal component and return it to the potting process, thereby realizing the recycling of materials.

[0035] To address the severe dust pollution problem, the dust collection assembly specifically includes a dust collection duct 2, a dust collector 5, and a dust collection tank 6. One end of the dust collection duct 2 is connected to the sealing cover 3 of the potting dust collection and return system, and the other end is connected to the inlet of the dust collector 5. The dust collection duct 2 is used to transport dust-laden air from inside the sealing cover 3 to the dust collector 5. The dust collector 5 is used to separate and collect dust from the air, and has a discharge port at its bottom. The dust collection tank 6 is installed below the discharge port at the bottom of the dust collector 5, and is sealed to the discharge port of the dust collector 5. The dust collection tank 6 is used to store the dust collected by the dust collector 5.

[0036] Furthermore, the dust removal assembly also includes a sealing cover 3 and a lifting cylinder 4. The sealing cover 3 is a cover structure, and it is fixedly installed around the discharge port of the hopper 1 of the hopper dust removal and return system. The top or side wall of the sealing cover 3 has a connection port, and the dust removal air pipe 2 is fixedly connected to the connection port of the sealing cover 3. The lifting cylinder 4 is vertically installed below the hopper station. When the piston rod of the lifting cylinder 4 extends upward, it can lift the hopper 10 of the hopper dust removal and return system. When the hopper 10 is lifted to the working position by the lifting cylinder 4, the top of the hopper 10 contacts the bottom edge of the sealing cover 3, forming a sealed space.

[0037] It is worth noting that lifting cylinders are existing technology. A lifting cylinder is a device that generates linear motion through hydraulic pressure and is widely used in industrial production and construction engineering. A lifting cylinder is a pneumatic or hydraulic device mainly used to achieve functions such as lifting, positioning, and clamping of objects. A lifting cylinder typically consists of a cylinder barrel, piston, piston rod, and seals. The piston is moved by the pressure of a liquid or gas, thereby lifting or lowering the load.

[0038] To address the issues of low material recycling rates and impact on product batch consistency, the reprocessing component specifically includes a conveying device 8 and a conveying pipe 9. One end of the conveying pipe 9 is connected to the dust collection tank 6, and the other end is connected to the filling silo 1. The conveying pipe 9 is used to convey dust. The conveying device 8 is installed on the conveying pipe 9 and is a pneumatic conveying device. The conveying device 8 is used to generate airflow to drive the dust to move within the conveying pipe 9.

[0039] Furthermore, the return feeding assembly also includes a control valve 7. The control valve 7 is installed between the bottom outlet of the dust collection tank 6 and the inlet of the conveying pipe 9. The control valve 7 is used to control the discharge of dust from the dust collection tank 6 into the conveying pipe 9.

[0040] Furthermore, the potting dust removal and return system also includes a potting hopper 1, a sagger 10, and a feed pipe 11. The potting hopper 1 is located directly above the sealing cover 3. The interior of the potting hopper 1 forms a temporary storage cavity for the material. A conical discharge port is located at the bottom of the potting hopper 1, extending into the sealing cover 3. One end of the feed pipe 11 is connected to an external feeding device, and the other end is connected to the feed inlet of the potting hopper 1. The feed pipe 11 is responsible for conveying the material to be potted into the potting hopper 1. The sagger 10 is a high-temperature resistant container that holds the material. Driven by the drive rollers of the roller kiln, the sagger 10 passes sequentially along the production line through each station, including this potting dust removal and return system.

[0041] The workflow of the potting dust removal and return feeding system is executed sequentially, and the specific steps are as follows:

[0042] The first step is system preparation and sealing. External materials are conveyed through the feed pipe 11 and temporarily stored in the filling hopper 1. When the empty sagger 10 is conveyed to the filling station by the roller conveyor, the piston rod of the lifting cylinder 4 moves upward, pushing the sagger 10 up so that its top edge is tightly pressed against the bottom edge of the sealing cover 3 to form a sealed filling space.

[0043] The second step is material loading and dust removal. Material is loaded into the crucible 10 from the loading hopper 1. The dust-laden air generated during this process is confined within the sealed space formed by the sealing cover 3. The operating dust collector 5 continuously extracts the dust-laden air from this space through the dust collection pipe 2. Gas-solid separation is completed within the dust collector 5, dust is collected, and the purified air is discharged. The collected dust falls into the dust collection tank 6 below for storage.

[0044] The third step is dust return feeding. When the current batch of materials is filled or the return feeding conditions are met, the control system commands the control valve 7 to open. The dust in the dust collection tank 6 falls into the conveying pipe 9 under gravity. At the same time, the conveying device 8 starts, using airflow to blow the dust in the conveying pipe 9 back to the filling hopper 1, where it mixes with the subsequent new material.

[0045] Step four, cycle reset. After the return-to-work operation is completed, control valve 7 closes and conveying device 8 stops. The piston rod of lifting cylinder 4 retracts, causing the crucible 10 to descend and separate from the sealing cover 3. The crucible 10, which has completed filling and dust return-to-work, is removed from the workstation, the system resets, and it is ready for the next cycle.

[0046] This embodiment achieves dynamic sealing through the sealing cover 3 and the lifting cylinder 4, suppressing dust dispersion; dust collection is accomplished through the dust collector 5 and the dust collection tank 6; and automatic dust return is achieved through the control valve 7, the conveying device 8, and the conveying pipeline 9, forming a closed-loop material flow system, improving utilization rate and the cleanliness of the working environment. The dust collection and return system in this embodiment achieves dynamic sealing during the filling process through the coordinated action of the sealing cover 3 and the lifting cylinder 4, effectively suppressing dust dispersion; the dust collector 5 and the dust collection tank 6 complete the efficient collection and temporary storage of dust; and the return system, composed of the control valve 7, the conveying device 8, and the conveying pipeline 9, enables the automatic and precise reuse of collected dust in the current batch of filled materials. This system forms a closed-loop material flow system, significantly improving material utilization rate, improving the working environment, reducing manual intervention, and ensuring batch consistency of products.

[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dust collection and return system for a roller kiln, characterized in that, It includes a potting hopper (1), a dust removal component and a return feeding component; the dust removal component is used to collect the dust generated in the potting process; the return feeding component is used to transport the dust collected by the dust removal component and return it to the potting process to realize the recycling of materials; The dust removal assembly includes a dust removal air pipe (2), a dust collector (5), and a dust collection tank (6). The dust removal air pipe (2) is used to transport dust-laden air, the dust collector (5) is used to separate dust from the air, and the dust collection tank (6) is used to store the separated dust. The return feeding assembly includes a conveying device (8) and a conveying pipe (9). The conveying pipe (9) is used to convey dust from the dust collection tank (6) to the filling silo (1). The conveying device (8) is used to drive the dust to move within the conveying pipe (9).

2. The dust collection and return feeding system for roller kilns according to claim 1, characterized in that, It also includes a sagger (10), and the dust removal assembly also includes a sealing cover (3) and a lifting cylinder (4); The sealing cover (3) is fixedly installed around the discharge port of the hopper (1); The lifting cylinder (4) is located below the sagger filling station. The piston rod of the lifting cylinder (4) is used to lift the sagger (10) so that the top of the sagger (10) contacts the bottom edge of the sealing cover (3) to form a sealed space.

3. The dust collection and return feeding system for roller kilns according to claim 2, characterized in that, One end of the dust removal air pipe (2) is connected to the sealing cover (3), and the other end is connected to the inlet of the dust collector (5).

4. The dust collection and return feeding system for roller kilns according to claim 1, characterized in that, The dust collection tank (6) is connected to the discharge port of the dust collector (5).

5. The dust collection and return feeding system for roller kilns according to claim 1, characterized in that, The return-feed assembly also includes a control valve (7).

6. The dust collection and return feeding system for roller kilns according to claim 5, characterized in that... The control valve (7) is installed at the bottom outlet of the dust collection tank (6) to control the discharge of dust from the dust collection tank (6) to the conveying pipe (9).

7. The dust collection and return feeding system for roller kilns according to claim 2, characterized in that, The top or side wall of the sealing cover (3) is provided with a connection port, and the dust removal air pipe (2) is fixedly connected to the connection port.

8. The dust collection and return feeding system for roller kilns according to claim 1, characterized in that, The conveying device (8) is installed on the conveying pipeline (9).

9. The dust collection and return feeding system for roller kilns according to claim 1, characterized in that, It also includes a feed pipe (11), which is connected to the feed inlet of the hopper (1) for conveying materials.

10. The dust collection and return feeding system for roller kilns according to claim 1, characterized in that, The dust collector (5) has a discharge port at the bottom, and the dust collection tank (6) is installed below the discharge port.

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