Heat preservation conveying device for iron ore pellets

Abstract

The utility model relates to the technical field of mineral engineering, and discloses an iron ore pellet heat preservation conveying device which comprises an electric flat car, a storage tank is loaded on the electric flat car, a high-temperature-resistant layer is arranged on the inner side of the storage tank, the inner side of the high-temperature-resistant layer is filled with heat preservation materials, and a heat preservation cover is hinged to the upper side of the storage tank. The right side of the storage tank fixedly communicates with a discharging opening, a bucket elevator is arranged on the right side of the electric flat car, a belt conveyor is arranged on the right side of the bucket elevator, a supporting frame is fixedly connected to the lower side of the belt conveyor, and a cleaning assembly is arranged on the inner side of the supporting frame. The high-temperature-resistant layer on the inner side of the storage tank can resist high temperature of hot iron ore pellets, the tank body is prevented from being damaged, normal use and safe operation of the device are ensured, and the heat-insulating material filled in the storage tank and the heat-insulating cover closed during transportation greatly reduce heat loss and keep the temperature in the storage tank.

Description

Technical Field

[0001] This utility model relates to the field of mining engineering technology, and in particular to an iron ore pellet heat preservation and conveying device. Background Technology

[0002] In the complex and precise process of steel smelting, iron ore pellets, as an indispensable core component, occupy a pivotal and crucial position. They are not only an important raw material base for the smooth progress of steel production, but also one of the key factors affecting the quality and performance of steel products. From raw material input to final product output, the quality of iron ore pellets directly determines the difficulty of the smelting process, the level of energy consumption, and the quality level of the final steel products.

[0003] Traditional iron ore pellet supply mainly uses cold pellets to enter the furnace. In this mode, the cold pellets have very limited energy before entering the smelting furnace because they have been stored and transported at room temperature for a long time. This energy is far from sufficient to meet the heat requirements of the subsequent smelting reaction. This means that after entering the smelting furnace, the cold pellets must rely on a large input of external energy to raise the temperature and thus trigger and maintain the smooth progress of the smelting reaction.

[0004] However, in the current iron ore pellet production field, after cold pellets are fed into the furnace, a large amount of electricity is required to heat them up, which results in high electricity consumption and greatly increases the production cost of enterprises. Furthermore, because heating cold pellets takes a long time, the amount of pellets that can be fed into the reaction per unit time is limited, which seriously restricts the increase in output.

[0005] Therefore, an iron ore pellet heat preservation and conveying device is provided to solve the problems mentioned in the background art. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides an iron ore pellet heat preservation and conveying device, which aims to improve the problem that in the existing technology, cold pellets need to consume a lot of electricity to heat up after entering the furnace, which increases the production cost of enterprises.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an iron ore pellet heat-insulating conveying device, comprising an electric flatbed cart, on which a storage tank is loaded, a high-temperature resistant layer is provided on the inner side of the storage tank, and the inner side of the high-temperature resistant layer is filled with heat-insulating material, a heat-insulating cover is hinged to the upper side of the storage tank, a discharge port is fixedly connected to the right side of the storage tank, a bucket elevator is provided on the right side of the electric flatbed cart, a belt conveyor is provided on the right side of the bucket elevator, a support frame is fixedly connected to the lower side of the belt conveyor, a cleaning component is provided on the inner side of the support frame, a heat-insulating cover is provided on the belt conveyor, and a dust removal component is provided on the heat-insulating cover.

[0008] Furthermore, the cleaning assembly includes a fixing plate, which is fixedly connected to the inner side of the support frame. A spring is fixedly connected to the fixing plate, and a mounting base is fixedly connected to the upper side of the spring. A cleaning brush is rotatably connected to the inner side of the mounting base.

[0009] Furthermore, the dust removal assembly includes a fan, which is mounted on an insulation cover. A filter box is fixedly connected to the left side of the fan, and a filter screen is installed inside the filter box.

[0010] Furthermore, a hot material buffer bin is provided on the right side of the belt conveyor.

[0011] Furthermore, a guide plate is provided on the left side of the hot material buffer bin, and the guide plate is attached to the right side of the belt conveyor.

[0012] Furthermore, the cleaning brush is rotatably connected to the lower side of the belt conveyor.

[0013] Furthermore, the left side of the filter box is connected to the heat insulation cover.

[0014] Furthermore, the interior of the insulation cover is hinged with an inspection door.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the high-temperature resistant layer inside the storage tank can resist the high temperature of hot iron ore pellets, avoid damage to the tank body, and ensure the normal use and safe operation of the device. The insulation material filled inside and the insulation cover closed during transportation greatly reduce heat loss, maintain the temperature inside the tank, maintain a suitable temperature for the hot iron ore pellets, reduce heat loss, and facilitate the full utilization of its sensible heat in the subsequent smelting process, thereby reducing smelting energy consumption.

[0017] 2. In this utility model, the cleaning brush, under the action of the spring, makes close contact with the surface of the conveyor belt and rotates with its movement, which can clean up residual mineral pellets and impurities. The spring can automatically adjust the pressure of the cleaning brush according to the operation of the conveyor belt to ensure the cleaning effect, avoid material residue from hindering the operation of the conveyor belt, ensure the efficient and stable operation of the conveyor belt, and reduce the impact of impurities on subsequent processes.

[0018] 3. In this utility model, the heat insulation cover on the belt conveyor reduces heat loss during the conveying of hot iron ore pellets, maintains the temperature of the pellets, and further promotes the effective utilization of heat. The air containing dust in the heat insulation cover is periodically drawn into the filter box by the fan, and after being filtered by the filter screen, the purified air is discharged, which greatly reduces dust during the conveying process, significantly improves the working environment, protects the health of operators, and meets environmental protection requirements. Attached Figure Description

[0019] Figure 1 This is a perspective view of an iron ore pellet heat preservation and conveying device proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the storage tank of an iron ore pellet heat preservation and conveying device proposed in this utility model;

[0021] Figure 3 This is a schematic diagram of the dust removal component structure of an iron ore pellet heat preservation and conveying device proposed in this utility model;

[0022] Figure 4 This is a partial structural schematic diagram of an iron ore pellet heat preservation and conveying device proposed in this utility model;

[0023] Figure 5 This is a schematic diagram of the cleaning component structure of an iron ore pellet heat preservation and conveying device proposed in this utility model.

[0024] Legend:

[0025] 1. Storage tank; 2. Electric flatbed cart; 3. High-temperature resistant layer; 4. Inspection door; 5. Insulation material; 6. Insulation cover; 7. Bucket elevator; 8. Belt conveyor; 9. Insulation cover; 10. Dust removal components; 101. Fan; 102. Filter box; 103. Filter screen; 11. Cleaning components; 111. Fixing plate; 112. Cleaning brush; 113. Spring; 114. Mounting base; 12. Guide plate; 13. Hot material buffer bin; 14. Discharge port; 15. Support frame. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figure 1 and Figure 2 An embodiment of this utility model is provided: an iron ore pellet heat preservation and conveying device, including an electric flatbed trolley 2, a storage tank 1 loaded on the electric flatbed trolley 2, a high temperature resistant layer 3 provided on the inner side of the storage tank 1, a heat preservation material 5 filled on the inner side of the high temperature resistant layer 3, a heat preservation cover 6 hinged to the upper side of the storage tank 1, a discharge port 14 fixedly connected to the right side of the storage tank 1, a bucket elevator 7 provided on the right side of the electric flatbed trolley 2, a belt conveyor 8 provided on the right side of the bucket elevator 7, and a support frame 15 fixedly connected to the lower side of the belt conveyor 8;

[0028] Specifically, the electric flatbed truck 2 is started, carrying the storage tank 1. The high-temperature resistant layer 3 inside the storage tank 1 effectively resists the high temperature emitted by the hot iron ore pellets, successfully preventing the tank from being damaged by high temperature. The insulation material 5 filled inside the high-temperature resistant layer 3 greatly reduces the rate of heat loss to the outside, keeping the temperature inside the tank stable. During transportation, the insulation cover 6 is closed to further reduce heat loss, creating a relatively stable high-temperature environment for the hot iron ore pellets, effectively delaying the drop in pellet temperature and ensuring that its quality is not affected. When it arrives at the designated location, the staff opens the insulation cover 6, and the hot iron ore pellets are smoothly discharged from the discharge port 14. The discharged hot iron ore pellets then enter the bucket elevator 7, which drives the buckets to gradually lift the hot iron ore pellets upward, successfully completing the vertical height transfer, laying a solid foundation for the subsequent conveying process, and accurately and efficiently realizing the spatial position conversion of the hot iron ore pellets.

[0029] Reference Figure 1 , Figure 4 and Figure 5 A cleaning assembly 11 is provided on the inner side of the support frame 15. The cleaning assembly 11 includes a fixing plate 111, which is fixedly connected to the inner side of the support frame 15. A spring 113 is fixedly connected to the fixing plate 111. A mounting base 114 is fixedly connected to the upper side of the spring 113. A cleaning brush 112 is rotatably connected to the inner side of the mounting base 114. The cleaning brush 112 is rotatably connected to the lower side of the belt conveyor 8.

[0030] Specifically, the hot iron ore pellets that have been lifted are conveyed to the belt conveyor 8. When the conveyor belt is running, the cleaning brush 112 on its lower side is tightly attached to the surface of the conveyor belt under the action of the spring 113. As the conveyor belt moves continuously, the cleaning brush 112 rotates continuously, thoroughly cleaning the remaining ore pellets and impurities. The spring 113 can automatically and flexibly adjust the pressure of the cleaning brush 112 according to the actual running conditions of the conveyor belt, ensuring that the cleaning effect is always kept at the best level, effectively avoiding the obstruction of the conveyor belt operation caused by material residue, and ensuring the efficient and stable operation of the conveyor belt.

[0031] Reference Figure 1 and Figure 3 The belt conveyor 8 is equipped with an insulation cover 9, and the insulation cover 9 is equipped with a dust removal component 10. The dust removal component 10 includes a fan 101, which is installed on the insulation cover 9. A filter box 102 is fixedly connected to the left side of the fan 101. A filter screen 103 is installed inside the filter box 102, and the left side of the filter box 102 is connected to the insulation cover 9.

[0032] Specifically, the heat insulation cover 9 equipped on the belt conveyor 8 reduces heat loss and maintains a stable temperature for the hot iron ore pellets, effectively ensuring the quality stability of the hot iron ore pellets. At the same time, according to actual production needs, the staff can periodically start the fan 101. The fan 101 quickly draws the dust-containing air from the heat insulation cover 9 into the filter box 102. The filter screen 103 in the filter box 102 accurately intercepts the dust and discharges the purified air, greatly reducing dust during the conveying process, significantly improving the working environment, and creating a cleaner and safer working space for the operators.

[0033] Reference Figure 1 A hot material buffer bin 13 is provided on the right side of the belt conveyor 8, and a guide plate 12 is provided on the left side of the hot material buffer bin 13. The guide plate 12 is attached to the right side of the belt conveyor 8, and an inspection door 4 is hinged inside the heat insulation cover 9.

[0034] Finally, the belt conveyor 8, with the help of the guide plate 12, accurately transports the hot iron ore pellets to the hot material buffer bin 13 on the right side for temporary storage. The maintenance door 4, which is hinged on the insulation cover 9, provides great convenience for staff to carry out daily inspection and maintenance of the internal equipment. Staff can open the maintenance door 4 at any time to enter the interior for comprehensive inspection, timely repair and maintenance of the equipment, ensuring that the equipment is always in good operating condition.

[0035] Working principle: When using this device, the electric flatbed truck 2 loads the storage tank 1. The high-temperature resistant layer 3 inside the storage tank 1 can resist the high temperature of the hot iron ore pellets and prevent the tank from being damaged by high temperature. The heat insulation material 5 filled inside the high-temperature resistant layer 3 greatly reduces heat loss and maintains the temperature inside the tank. The heat insulation cover 6 on the upper side of the storage tank 1 is closed during transportation to further reduce heat loss to the outside. When it arrives at the designated location, the heat insulation cover 6 is opened and the hot iron ore pellets can be discharged through the discharge port 14 on the right. The hot iron ore pellets discharged from the discharge port 14 enter the bucket elevator 7. The bucket elevator 7 drives the buckets to vertically lift the hot iron ore pellets, realizing the transfer of height. The hot iron ore pellets lifted by the bucket elevator 7 are transported to the belt conveyor 8 for horizontal transport.

[0036] When the conveyor belt is running, the cleaning brush 112 is in close contact with the surface of the conveyor belt under the action of the spring 113. As the conveyor belt moves, the cleaning brush 112 rotates to sweep away the residual ore pellets and impurities. The spring 113 can make the cleaning brush 112 automatically adjust the pressure according to the running conditions of the conveyor belt to ensure the cleaning effect. The heat insulation cover 9 set on the belt conveyor 8 can reduce the heat loss of hot iron ore pellets during the conveying process and maintain the temperature of the pellets. At the same time, the fan 101 can be started periodically to extract the dust-containing air from the heat insulation cover 9 and send it into the filter box 102. The filter screen 103 inside the filter box 102 filters the air, intercepts the dust, and discharges the purified air, thereby effectively reducing dust during the conveying process and improving the working environment. The belt conveyor 8 transports the hot iron ore pellets to the hot material buffer bin 13 on the right side through the guide plate 12 to realize the temporary storage of hot iron ore pellets so as to ensure a stable supply according to the production rhythm.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An iron ore pellet heat-conserving conveying device, comprising an electric flat car (2), characterized in that: The electric flat car (2) is loaded with a storage tank (1), the inner side of the storage tank (1) is provided with a high temperature resistant layer (3), the inner side of the high temperature resistant layer (3) is filled with a heat preservation material (5), the upper side of the storage tank (1) is hinged with a heat preservation cover (6), the right side of the storage tank (1) is fixedly connected with a discharge port (14), the right side of the electric flat car (2) is provided with a bucket elevator (7), the right side of the bucket elevator (7) is provided with a belt conveyor (8), the lower side of the belt conveyor (8) is fixedly connected with a support frame (15), the inner side of the support frame (15) is provided with a cleaning assembly (11), the belt conveyor (8) is provided with a heat preservation cover (9), and the heat preservation cover (9) is provided with a dust removal assembly (10).

2. The heat retaining and conveying device for iron ore pellets according to claim 1, characterized in that: The cleaning assembly (11) comprises a fixed plate (111), the fixed plate (111) is fixedly connected to the inner side of the support frame (15), the fixed plate (111) is fixedly connected with a spring (113), the upper side of the spring (113) is fixedly connected with a mounting seat (114), and the inner side of the mounting seat (114) is rotatably connected with a cleaning brush (112).

3. The iron ore pellet heat retaining and conveying device according to claim 1, characterized in that: The dust removal assembly (10) comprises a fan (101), the fan (101) is installed on the heat preservation cover (9), the left side of the fan (101) is fixedly connected with a filter box (102), and the filter box (102) is internally provided with a filter screen (103).

4. The iron ore pellet heat retaining and conveying device according to claim 1, characterized in that: The right side of the belt conveyor (8) is provided with a hot material buffer bin (13).

5. A heat retaining conveyor for iron ore pellets as claimed in claim 4 wherein: The left side of the hot material buffer bin (13) is provided with a guide plate (12), and the guide plate (12) is attached to the right side of the belt conveyor (8).

6. The iron ore pellet heat retaining and conveying device according to claim 2, characterized in that: The cleaning brush (112) is rotatably connected to the lower side of the belt conveyor (8).

7. The iron ore pellet heat retaining and conveying device according to claim 3, characterized in that: The left side of the filter box (102) is communicated with the heat preservation cover (9).

8. The iron ore pellet heat retaining and conveying device according to claim 1, characterized in that: The inner side of the heat preservation cover (9) is hinged with an access door (4).

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