Multi-level particle size covering material conveying system

Abstract

The utility model discloses a multi-level particle size covering material conveying system which comprises a discharging hopper, the discharging hopper is connected with a feeding port of a bucket elevator through a discharging pipe, a discharging port of the bucket elevator is connected with a stock bin through a feeding pipe, and the stock bin is divided into a fine material chamber and a coarse material chamber. An electric three-way material distributing valve is arranged on the feeding pipe and is connected to the fine material chamber and the coarse material chamber, the belt conveyor is arranged at the bottoms of the two material bins, a discharging opening of the belt conveyor is connected with a feeding opening of the crown block feeding device through a discharging pipe, and the crown block feeding device is arranged in a small discharging room at the top of the electrolysis workshop. The system disclosed by the utility model can store materials with different granularities, and meets the requirements of the electrolytic cell on covering materials with different granularities under different working conditions. Two kinds of covering materials with different granularities can be stored and conveyed through one set of system, so that the electrolysis production efficiency is improved, a set of storage and conveying system does not need to be arranged for each kind of covering material with different granularities, and the production cost is effectively saved.

Description

Technical Field

[0001] This utility model relates to a conveying system, and more particularly to a multi-stage particle size covering material conveying system. Background Technology

[0002] Aluminum electrolysis consumes a large amount of heat energy during production, requiring the anode surface inside the electrolytic cell to be covered with insulating material for heat preservation. Simultaneously, aluminum electrolysis production requires a mixture of alumina and block-shaped covering material, which offers advantages such as good and uniform heat preservation. Currently, the covering material conveying silos in the aluminum electrolysis industry can only store covering material of a single particle size, failing to meet the different particle size requirements of the electrolytic cells under varying operating conditions. Since a single system can only store and convey one particle size of covering material, without increasing personnel, the limited number of personnel sometimes needs to monitor the operation of multiple systems simultaneously, resulting in high labor intensity and low production efficiency in covering material conveying. Summary of the Invention

[0003] The purpose of this invention is to provide a multi-stage particle size covering material conveying system. This conveying system can transport covering materials of different particle sizes under different electrolysis production conditions, thereby improving electrolysis production efficiency and effectively saving production costs.

[0004] The technical solution of this utility model is as follows: A multi-stage particle size covering material conveying system includes a feeding hopper, which is connected to the inlet of a bucket elevator via a feeding pipe. The outlet of the bucket elevator is connected to a silo via a feeding pipe. The silo is divided into two chambers: a fine material chamber and a coarse material chamber. An electric three-way distribution valve is installed on the feeding pipe and connected to the two chambers. A belt conveyor is installed at the bottom of the two silos. The outlet of the belt conveyor is connected to the inlet of a crane feeding device via a feeding pipe. The crane feeding device is installed in a small feeding room at the top of the electrolysis workshop. The system also includes a truck for transporting materials.

[0005] In the aforementioned multi-stage particle size covering material conveying system, the discharge hopper is located below the ground, with its top flush with the ground.

[0006] In the aforementioned multi-stage particle size covering material conveying system, solenoid valves are installed at the outlets of both hoppers.

[0007] In the aforementioned multi-stage particle size covering material conveying system, level gauges are also installed on the top of the two hoppers.

[0008] The beneficial effects of this utility model are as follows: Compared with the prior art, the system of this utility model mainly consists of a truck-mounted material transport vehicle, a feeding hopper, a bucket elevator, a silo, a belt conveyor, and an overhead crane feeding device. By dividing the silo into two chambers for fine and coarse materials, it can store materials of different particle sizes, meeting the requirements of electrolytic cells for covering materials of different particle sizes under different operating conditions. One system can store and transport two different particle sizes of covering materials, thereby improving the efficiency of electrolytic production. It eliminates the need for a separate storage and conveying system for each particle size of covering material, effectively saving production costs. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model;

[0010] Figure 2 This is a process flow diagram of the present invention.

[0011] Attached reference numerals: 1-Cargo truck, 2-Discharge hopper, 3-Bucket elevator, 4-Electric three-way material distribution valve, 5-Hopper, 6-Belt conveyor, 7-Overhead crane feeding device, 8-Solenoid valve, 9-Level gauge. Detailed Implementation

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0013] An embodiment of this utility model: A multi-stage particle size covering material conveying system includes a feeding hopper 2, which is connected to the inlet of a bucket elevator 3 via a feeding pipe. The outlet of the bucket elevator 3 is connected to a silo 5 via a feeding pipe. The silo 5 is divided into two chambers: a fine material chamber and a coarse material chamber. An electric three-way distribution valve 4 is installed on the feeding pipe and connected to the two chambers. A belt conveyor 6 is installed at the bottom of the two silos 5. The outlet of the belt conveyor 6 is connected to the inlet of a crane feeding device 7 via a feeding pipe. The crane feeding device 7 is installed in the top feeding room of the electrolysis workshop. The system also includes a truck transport vehicle 1.

[0014] During operation, the truck 1 transports the covering material to the unloading hopper 2 for unloading. The covering material is poured into the unloading hopper 2 and then flows through the discharge pipe into the feed inlet of the bucket elevator 3. The bucket elevator 3 lifts the material upwards and sends it out through the feeding pipe. During this process, the control system opens or closes the electric three-way distribution valve 4 according to the particle size of the covered material being transported. For example, if fine-grained covering material is being transported, the control system will open the valve corresponding to the fine material chamber and close the valve corresponding to the coarse material chamber, ensuring that the material sent out through the feeding pipe ultimately enters the fine material chamber for storage. This allows covering materials of different particle sizes to be stored in different silos 5. During the electrolysis process, if a certain particle size of covering material is required, the outlet of the corresponding particle size hopper 5 is opened, allowing the covering material of the corresponding particle size to fall into the belt conveyor 6. The belt conveyor 6 then transports the covering material to the overhead crane feeding device 7, which in turn sends the covering material into the multi-functional overhead crane material box in the electrolysis workshop. The overhead crane then feeds the covering material onto the upper surface of the anode to achieve heat preservation.

[0015] The material discharge hopper 2 is located below the ground, with its top flush with the ground. When the truck 1 is driven to the material discharge hopper 2, the covering material can be poured into the material discharge hopper 2, making unloading more convenient.

[0016] Both hoppers 5 are equipped with solenoid valves 8 at their outlets to automatically open and close the outlets of the hoppers 5. When fine-grained covering material is needed, the solenoid valve 8 in the fine material chamber is opened and the solenoid valve in the coarse material chamber is closed; when coarse-grained covering material is needed, the solenoid valve 8 in the coarse material chamber is opened and the solenoid valve in the fine material chamber is closed.

[0017] The top of each of the two hoppers 5 is also equipped with a level gauge 9, which is used to monitor the material level inside the hopper 5.

[0018] The operation method of the multi-stage force-conveying material conveying system of this utility model includes the following steps:

[0019] 1. Unloading: The truck 1 pours the covering material into the unloading hopper 2;

[0020] 2. Material storage: The covering material in the feeding hopper 2 is discharged into the bucket elevator 3 through the feeding pipe, and then discharged into the hopper 5 from the top of the bucket elevator 3. The coarse material is discharged into the coarse material chamber and the fine material is discharged into the fine material chamber.

[0021] 3. Feeding: The opening and closing of the solenoid valve 8 controls the discharge of the covering material in the corresponding particle size hopper 5 into the belt conveyor 6. At the same time, the belt conveyor 6 starts to transport the covering material to the overhead crane feeding device 7.

[0022] 4. Feeding: Finally, the overhead crane feeding device 7 sends the covering material into the multi-functional overhead crane material box in the electrolysis workshop. The overhead crane then sends the covering material onto the upper surface of the anode to achieve heat preservation.

[0023] This invention stores covering materials of different particle sizes and uses a control system to interlock and control these materials, meeting the needs of different particle size covering materials under various operating conditions during aluminum electrolysis production. This automation saves costs and improves production efficiency.

Claims

1. A multi-stage particle size covering material conveying system, characterized in that: The equipment includes a feeding hopper (2), which is connected to the feed inlet of a bucket elevator (3) via a feeding pipe. The discharge outlet of the bucket elevator (3) is connected to a silo (5) via a feeding pipe. The silo (5) is divided into two chambers: fine material and coarse material. An electric three-way distribution valve (4) is installed on the feeding pipe and connected to the two chambers. A belt conveyor (6) is installed at the bottom of the two silos (5). The discharge outlet of the belt conveyor (6) is connected to the feed inlet of a crane feeding device (7) via a feeding pipe. The crane feeding device (7) is installed in the top feeding room of the electrolysis workshop. The equipment also includes a truck (1) for transporting materials.

2. The multi-stage particle size covering material conveying system according to claim 1, characterized in that: The feeding hopper (2) is located below the ground, with its top flush with the ground.

3. The multi-stage particle size covering material conveying system according to claim 1, characterized in that: Solenoid valves (8) are installed at the outlets of both hoppers (5).

4. The multi-stage particle size covering material conveying system according to claim 1, characterized in that: The top of the two hoppers (5) is also equipped with a level gauge (9).

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