Anti-blocking graphite feeder

By designing an anti-clogging graphite feeder, the problem of easy clogging during graphite feeding was solved, enabling stable operation and automated operation of the catalyst production system.

CN223658901UActive Publication Date: 2025-12-12CHINA PETROLEUM & CHEMICAL CORP +2
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Patent Information

Application Number
CN202423108235.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2025-12-12
Estimated Expiration
2034-12-17

AI Technical Summary

Technical Problem

In catalyst production, when graphite is used as an additive, the pneumatic conveying system is prone to clogging, leading to instability in the production system.

Method used

Design an anti-clogging graphite feeder, including a hopper, a bag filter, a hopper wall vibrator, and a discharge drying section. The bag filter separates non-condensable gases, the hopper detects the material volume, the hopper wall vibrator cleans up the material adhering to the wall, and the discharge drying section removes condensate, thus achieving continuous operation and automated control.

Benefits of technology

It effectively prevents blockages during the graphite feeding process, ensures stable operation of the production system, and enables continuous operation and automated control.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of catalyst production, and relates to an anti-blocking graphite feeder which is characterized by comprising a stock bin, a bag-type dust collector is arranged on the upper portion of the stock bin, a graphite feeding port is formed in the side face of the upper portion of the stock bin, a discharging port is formed in the lower end of the lower portion of the stock bin, and the discharging port is connected with a discharging rotary valve and a discharging drying section. A bin wall vibrator is arranged on the outer wall of the stock bin. According to the anti-blocking graphite feeder disclosed by the utility model, aiming at the problems that the dust in manual graphite feeding is relatively large and blockage is easily caused in mechanical conveying, the internal structure of the feeder is improved, so that graphite blockage in a feeding process is effectively prevented, stable operation of a related production system is ensured, and meanwhile, continuous operation and automatic process control can be realized.
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Description

Technical Field

[0001] This utility model belongs to the field of catalyst production, and more specifically relates to a feeding device for graphite, an auxiliary agent in catalyst production. Background Technology

[0002] In the production of copper-based catalysts, graphite is an important additive or auxiliary agent, added to the system in a certain proportion before product molding to improve the overall performance of the catalyst. Due to its strong adsorption capacity and large specific surface area, graphite easily adsorbs onto the surface of conveying equipment. In actual production, it is often added to the system manually. This invention reduces the risk of system blockage by improving the structure of the feeder. Summary of the Invention

[0003] The purpose of this invention is to address the problem of easy clogging when using pneumatic conveying systems for feeding catalyst additives (graphite). This invention proposes an anti-clogging graphite feeder that reduces the risk of system blockage by improving the feeder structure.

[0004] This utility model is implemented as follows: an anti-clogging graphite feeder, characterized in that it includes a hopper, a bag filter is provided at the top of the hopper, a graphite inlet is provided on the upper side of the hopper, and a discharge outlet is provided at the lower end of the hopper, the discharge outlet is connected to a discharge rotary valve and a discharge drying section; the outer wall of the hopper is provided with a hopper wall vibrator.

[0005] Furthermore, the bag filter is provided with a back-blowing port and an exhaust port at the top.

[0006] Furthermore, the hopper is provided with a material level port on its side.

[0007] More preferably, the hopper has two material level openings on its side, one above the other.

[0008] More preferably, the material level port is equipped with a material level sensor.

[0009] Furthermore, the lower part of the hopper is inverted cone-shaped.

[0010] Furthermore, there are two discharge rotary valves, and the discharge drying section is connected between the two discharge rotary valves.

[0011] Furthermore, the feeding and drying section is equipped with a hot air inlet and a hot air outlet.

[0012] This utility model relates to a baghouse dust collector for an anti-clogging graphite feeder, used to recover materials entrained in the power system and discharge non-condensable gases from the system. The hopper collects materials conveyed by the pneumatic conveyor; its volume can be adjusted according to actual production needs to ensure sufficient raw materials for downstream processes. A hopper wall vibrator cleans adhering additives and can be automatically activated periodically based on material characteristics and equipment usage to maintain effective system operation. A discharge rotary valve controls the discharge rate for uniform discharge. The discharge drying section, before graphite feeding, uses hot air to remove condensed water vapor from the graphite receiving equipment during the feeding process, ensuring smooth graphite discharge without sticking.

[0013] This invention operates as follows: The additive (graphite) supplied by the power system is collected in the silo of the device. Non-condensable gases are separated from entrained materials by a bag filter at the top of the device, and the silo volume is detected by a level sensor. The non-condensable gases are then discharged through the exhaust port above the bag filter to the induced draft fan. The material in the silo is sent to the discharge drying section via the discharge port and discharge valve, where it is dried with hot air to remove any small amount of condensate that may be present downstream before being discharged. A silo wall vibrator is set to periodically vibrate according to actual production needs to reduce the amount of graphite adhering to the walls.

[0014] This utility model is an anti-clogging graphite feeder. It addresses the problems of excessive dust during manual graphite feeding and easy clogging during mechanical conveying. By improving the internal structure of the feeder, it effectively prevents graphite blockage during the feeding process, ensures the stable operation of related production systems, and also enables continuous operation and automated process control. Attached Figure Description

[0015] Figure 1 A simplified structural diagram of the anti-clogging graphite feeder according to an embodiment of this utility model.

[0016] In the diagram, 1 – bag filter; 2 – hopper; 3 – hopper wall vibrator; 4 – discharge rotary valve; 5 – discharge drying section. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example

[0018] In this embodiment, the catalyst additive (graphite) is fed using an airflow conveying system.

[0019] Reference Appendix for an Anti-clogging Graphite Feeder Figure 1 It mainly includes a hopper 2, a bag filter 1 is installed above the hopper 2, a graphite inlet is provided on the upper side of the hopper 2, and a discharge outlet is provided at the lower end of the hopper 2. The discharge outlet is connected to the discharge rotary valve 4 and the discharge drying section 5; a hopper wall vibrator 3 is provided on the outer wall of the hopper 2.

[0020] In this embodiment, the bag filter 1 is provided with a back-blowing port and an exhaust port at its top.

[0021] In this embodiment, the side of the hopper 2 is provided with two material level ports, one above the other, and the material level ports are equipped with material level devices.

[0022] In this embodiment, the lower part of the hopper 2 is conical, and the lower end outlet is connected to two discharge rotary valves 4. The discharge drying section 5 is connected between the two discharge rotary valves 4, and the discharge drying section 5 is provided with a hot air inlet and a hot air outlet.

[0023] The anti-clogging graphite feeder operates as follows: During production, the additive (graphite) supplied from the power system enters the feed inlet of the device's silo 2. Non-condensable gases are separated from entrained materials by the bag filter 1 at the top of the device and collected in the silo 2. The entrained non-condensable gases are then discharged by the exhaust fan through the exhaust port above the bag filter 1. The material volume in the silo is detected by a level sensor at the level port. The silo volume can be adjusted according to actual production needs to ensure sufficient raw materials for downstream processes. The material in silo 2 is sent to the discharge drying section 5 via the discharge port and discharge valve 4. The hot air inlet and outlet of the discharge drying section 5 dry and remove any small amount of condensate that may be brought in from downstream processes, ensuring that the graphite does not stick and that the material can be smoothly transported to downstream production processes. The silo wall vibrator 3 can be set to vibrate periodically as needed to reduce the amount of graphite adhering to the wall.

[0024] This embodiment of the anti-clogging graphite feeder effectively prevents graphite blockage during the feeding process by improving the internal structure of the feeder, ensuring the stable operation of the relevant production system, while also enabling continuous operation and automated process control.

[0025] Any aspects not described in this embodiment are techniques well-known in the field.

Claims

1. A clog-resistant graphite feeder, characterized in that... It includes a hopper, with a bag filter dust collector above it. The upper side of the hopper has a graphite inlet, and the lower end has a discharge outlet. The discharge outlet is connected to a discharge rotary valve and a discharge drying section. The outer wall of the hopper is equipped with a hopper wall vibrator. The side of the hopper has two material level ports, one above the other, with material level sensors installed at each port. There are two discharge rotary valves, and the discharge drying section is connected between the two discharge rotary valves.

2. The anti-clogging graphite feeder according to claim 1, characterized in that... The bag filter is equipped with a back-blowing port and an exhaust port at the top.

3. The anti-clogging graphite feeder according to claim 1, characterized in that... The lower part of the silo is inverted cone-shaped.

4. The anti-clogging graphite feeder according to claim 1, characterized in that... The feeding and drying section is equipped with a hot air inlet and a hot air outlet.