CN-121988730-A - Automatic hot feeding system and method for hot direct reduced iron

CN121988730ACN 121988730 ACN121988730 ACN 121988730ACN-121988730-A

Abstract

The invention relates to an automatic hot conveying system for hot direct reduced iron, which comprises a suspension type track and at least one automatic traveling tank car, wherein the full-flow automatic operation is realized through an AI control box, a gas-based shaft furnace and an electric furnace are not required to be arranged in close proximity, so that engineering investment and construction difficulty are reduced, after loading is finished, the tank car runs in the air along the suspension type track, three-dimensional logistics in a factory area is realized, the problem of logistics intersection caused by horizontal transportation is avoided, meanwhile, a special vehicle and an operator are not required to be configured, the running cost is reduced, and in the transferring process, a heat-resistant heat-insulating sealing tank is always kept in a sealed state, so that secondary oxidation of hot direct reduced iron is prevented, and abrasion and pipe blockage of equipment in a pneumatic conveying process are avoided.

Inventors

CHEN LIANG
ZHOU YUHAO
LI QINGCHUN

Assignees

无锡红旗除尘设备有限公司

Dates

Publication Date: 20260508
Application Date: 20260327

Claims (10)

1. An automatic hot feed system for hot direct reduced iron, comprising: a suspended track; The automatic traveling tank truck comprises a truck body frame, a traveling driving device, a heat-resistant heat-preservation sealing tank and an AI control box, wherein the traveling driving device is arranged on the truck body frame and matched with the hanging type rail, the heat-resistant heat-preservation sealing tank is fixed on the truck body frame and is provided with a material receiving opening and a material discharging opening, and the AI control box is arranged on the truck body frame and is configured to control the operation of the tank truck.
2. The automatic hot feeding system for hot direct reduced iron according to claim 1, wherein the heat-resistant heat-insulating sealed tank comprises a tank body, a heat-insulating layer coated outside the tank body and a wear-resistant layer arranged on the inner wall of the tank body.
3. The automatic hot feeding system for hot direct reduced iron according to claim 1, wherein the heat-resistant heat-preserving sealing tank is provided with a pressure monitoring device and a material level monitoring device.
4. The automatic hot conveying system for hot direct reduced iron according to claim 1, wherein a lifting discharging chute section is arranged at the discharging opening of the heat-resistant heat-preserving sealing tank.
5. The automatic hot feeding system for hot direct reduced iron according to claim 1, wherein the top of the heat-resistant heat-preserving sealed tank is provided with a filtering and exhausting device, and the filtering and exhausting device comprises a filtering unit and a gas jet drainage unit which are communicated.
6. The automatic hot delivery system for hot direct reduced iron according to claim 5, wherein the automatic traveling tank truck further comprises an air source storage tank arranged on the truck body frame, and the air source storage tank is respectively communicated with the inner cavity of the heat-resistant heat-insulation sealing tank and the air jet drainage unit through pipelines.
7. The automatic hot reduced iron delivery system according to claim 1, wherein the overhead rail comprises climbing rail segments that change the height of the tank car.
8. The automatic hot direct reduced iron delivery system of claim 1 further comprising an automatic docking device disposed in the region of the receiving point, the automatic docking device configured to supplement the self-propelled tanker with energy or gas.
9. An automatic hot feeding method for hot direct reduced iron, applied to the hot feeding system according to any one of claims 1 to 8, comprising the steps of: The loading step, controlling the automatic travelling tank car to travel to a shaft furnace unloading station, and loading the hot direct reduced iron into a heat-resistant heat-insulation sealing tank; controlling the loaded automatic traveling tank truck to travel to an electric furnace receiving station along a suspension type track; And the discharging step is to control the automatic traveling tank truck to discharge the hot direct reduced iron in the heat-resistant heat-preserving sealed tank.
10. The method for automatically transferring hot direct reduced iron according to claim 9, wherein the loading step is followed by a pressure maintaining step of filling a protective gas into the heat-resistant heat-insulating sealed tank to maintain the pressure-slightly increased state.

Description

Automatic hot feeding system and method for hot direct reduced iron Technical Field The invention relates to the technical field of reduced iron, in particular to an automatic hot feeding system and method for hot direct reduced iron. Background The existing hot transfer process of the hot direct reduced iron mainly comprises a gravity hot direct transfer process, a mechanical transfer hot transfer process, a heat-resistant container tank car transfer hot transfer process and a pneumatic conveying process, wherein the gravity hot direct transfer process and the mechanical transfer hot transfer process all have limitations of different degrees, the gravity hot direct transfer process and the mechanical transfer hot transfer process need that a gas-based shaft furnace and an electric furnace are arranged in close proximity and a discharge port is higher than a feed port, so that the basic height of a factory building is greatly increased, engineering investment is large, process arrangement is limited, the heat-resistant container tank car transfer hot transfer process can realize long-distance conveying but needs to be configured with special vehicles and personnel, operation cost is high, the cross problem of horizontal logistics in a factory area exists, and the pneumatic conveying process has the problems of serious equipment abrasion, easiness in pipe blockage, complex system, large power consumption and the like. It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art. Disclosure of Invention Aiming at the defects of the prior art, the embodiment of the invention discloses an automatic hot feeding system and method for hot direct reduced iron, which are used for solving the problems of great increase of the basic height of a traditional equipment factory building, large engineering investment, limited process arrangement, high running cost, crossing of horizontal logistics in the factory area, serious equipment abrasion, easy pipe blockage, complex system and large power consumption. The technical scheme adopted by the invention is as follows: An automatic hot feed system for hot direct reduced iron comprising: a suspended track; The automatic traveling tank truck comprises a truck body frame, a traveling driving device, a heat-resistant heat-preservation sealing tank and an AI control box, wherein the traveling driving device is arranged on the truck body frame and matched with the hanging type rail, the heat-resistant heat-preservation sealing tank is fixed on the truck body frame and is provided with a material receiving opening and a material discharging opening, and the AI control box is arranged on the truck body frame and is configured to control the operation of the tank truck. The heat-resistant heat-insulating sealed tank comprises a tank body, a heat-insulating layer coated outside the tank body and a wear-resistant layer arranged on the inner wall of the tank body. The heat-resistant heat-insulation sealing tank is further provided with a pressure monitoring device and a material level monitoring device. The further technical scheme is that a lifting unloading chute section is arranged at the unloading opening of the heat-resistant heat-insulation sealing tank. The heat-resistant heat-preservation sealing tank is characterized in that a filtering and exhausting device is arranged at the top of the heat-resistant heat-preservation sealing tank and comprises a filtering unit and a gas jet drainage unit which are communicated. The automatic traveling tank truck further comprises an air source storage tank arranged on the truck body frame, wherein the air source storage tank is respectively communicated with the inner cavity of the heat-resistant heat-insulation sealing tank and the air jet drainage unit through pipelines. The suspension type track comprises a climbing track section for changing the running height of the tank car. The automatic hot feeding system for the hot direct reduced iron further comprises an automatic butt joint device arranged in a material receiving point area, wherein the automatic butt joint device is configured to supplement energy or gas for the automatic traveling tank car. An automatic hot feeding method of hot direct reduced iron, which is applied to the hot feeding system, is characterized by comprising the following steps: The loading step, controlling the automatic travelling tank car to travel to a shaft furnace unloading station, and loading the hot direct reduced iron into a heat-resistant heat-insulation sealing tank; controlling the loaded automatic traveling tank truck to travel to an electric furnace receiving station along a suspension type track; And the discharging step is to control the automatic traveling tank truck to discharge the h