CN215356081U

CN215356081U - Screening plant of casting blank flame cleaning accessory product iron oxide skin sediment

Info

Publication number: CN215356081U
Application number: CN202120931736.6U
Authority: CN
Inventors: 韩丽敏; 秦友照; 武国平; 魏永义
Original assignee: Beijing Shougang International Engineering Technology Co Ltd
Current assignee: Beijing Shougang International Engineering Technology Co Ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-12-31
Anticipated expiration: 2031-04-30

Abstract

A screening device for casting blank flame cleaning by-product iron oxide scale slag belongs to the technical field of continuous casting blank flame cleaning. The problem of iron oxide scale sediment is sorted out the burr before the shipment is solved. The utility model arranges an iron scale storage pool and a burr storage pool beside a cyclone well, arranges a steel rail at the top of the iron scale storage pool, installs a vehicle type vibrating screen on the steel rail, and arranges a special grab crane in a factory building. The method comprises the steps of grabbing oxide scale residues in the cyclone well by using a special grab crane, then discharging the oxide scale residues to a feeding port of a vehicle type vibrating screen, and screening to enable oxide scales and burrs on undersize materials to fall into respective storage tanks. And finally, grabbing the iron oxide scales out by using a special grab bucket crane, unloading the iron oxide scales onto a belt conveyor, conveying the iron oxide scales out, using a forklift to shovel the burrs, and loading the burrs into an automobile for conveying. The utility model has simple flow, simple equipment, simple and convenient operation and reliable operation, and can be used in new casting blank flame cleaning engineering or reconstruction engineering.

Description

Screening plant of casting blank flame cleaning accessory product iron oxide skin sediment

Technical Field

The utility model belongs to the technical field of continuous casting blank flame cleaning, and relates to a process for screening a byproduct iron oxide scale slag generated in the casting blank flame cleaning process.

Background

In recent years, the market competition of plates is more and more intense, and the quality requirements of users on steel plates are more and more strict, particularly for steel grades such as automobile plates, galvanized plates and the like, the surface of a casting blank needs to be cleaned, and the surface quality defect is eliminated, so that the requirements of downstream processes can be met. The surface cleaning method of the casting blank has various methods, wherein the flame cleaning method is more and more favored by domestic large-scale steel mills due to the advantages of high automation degree, high cleaning efficiency, small environmental pollution and the like.

The casting blank is subjected to flame cleaning, the surface quality of the casting blank is improved, and meanwhile, a byproduct, namely iron scale is generated, is in a flake shape, is a good steel-making coolant, and is generally conveyed to a steel-making process by using a belt conveyor for recycling. Because a small amount of burrs are mixed in the iron oxide scale, the burrs are steel blocks with slightly larger bulk and provided with acupuncture on the outer surfaces, and if the steel blocks are not shared out of the iron oxide scale, the steel blocks can scratch the adhesive tape of a conveyor in the transportation process, so the burrs need to be sorted out before shipment, which is the problem to be solved by the utility model.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide the iron oxide scale slag screening process which is simple in process, simple in equipment, simple and convenient to operate and reliable in operation.

The utility model provides a screening plant of casting blank flame cleaning by-product iron oxide scale sediment, set up whirl well 8 by the casting blank cleaning line in traditional continuous casting blank device, deposit iron scale 9, burr 10 and cooling towards slag water 11 in whirl well 8, set up iron scale storage tank 12 and burr storage tank 13 by whirl well 8, set up first rail 14 and second rail 15 at two vertical barricade tops of iron scale storage tank 12, install car formula shale shaker 16 on first rail 14 and second rail 15, car formula shale shaker 16 moves on the track, the direction of movement is the length direction of iron scale storage tank 12.

The screening device also comprises a head grabbing machine 17 which is arranged above the cyclone well 8 and the vehicle type vibrating screen 16.

A screening method for casting blank scarfing by-product iron oxide scale slag is characterized in that in the traditional continuous casting blank production process, molten steel and solid steel blocks generated by casting blank scarfing fall into a sheet metal ditch, and are cooled by cooling water to become iron oxide scale slag which flows into a cyclone well along with water, when the iron oxide scale slag accumulates to a certain amount, the iron oxide scale slag is taken out from the cyclone well and is discharged to a feeding port of a vehicle type vibrating screen, and after screening, the iron oxide scale which is a screen underflow falls into an iron oxide scale storage pool, and the burr which is an oversize flows into the burr storage pool, so that the separation of the iron oxide scale slag and the iron oxide scale slag is realized.

The iron scale slag screening process has the advantages that: compared with the traditional iron oxide scale slag treatment process, the facilities of the traditional iron oxide scale slag treatment process only comprise a cyclone well, a slag pool, a special grab crane and the like, in the utility model, burrs in the iron oxide scale slag can be separated only by adding a trolley type vibrating screen and a running track thereof, and the remaining pure iron oxide scale can be conveyed outwards by using an efficient belt conveyor, so that the rubber belt is protected, the service life is prolonged, and the cost is saved. The newly-added vehicle type vibration sieve track is supported by two retaining walls of the iron scale storage pool, so that support materials are saved, the iron scale which is a screened object just falls into the iron scale storage pool below the sieve type vibration sieve track, the process requirements are met, and the vehicle type vibration sieve can be moved to any position in the length direction of the iron scale storage pool, so that the iron scale and burrs can be conveniently and fully distributed in the space of the storage pool. The scale in the scale storage pool can be grabbed out by a special grab crane after accumulating to a certain amount, burrs in the burr storage pool can be shoveled out and loaded into an automobile by a forklift after accumulating to a certain amount, and materials can be fed in and out respectively, so that the materials are smooth. The utility model can be designed and built together when a casting blank flame cleaning facility is newly built, and can also be reconstructed and built on the existing casting blank flame cleaning facility, namely the process is applicable to both newly built projects and reconstructed projects.

Drawings

Fig. 1 is a plan view of arrangement of a scale slag screening process, and a plan view and a plan position relationship can be seen.

Fig. 2 is an elevational view of the arrangement of the iron oxide scale slag screening process, which clearly shows all the components and the arrangement in the height direction thereof.

Wherein the ordinal numbers refer to the names as follows:

1-plate unloading platform, 2-transport roller way, 3-casting blank, 4-flame cleaning machine, 5-flame cleaning machine track, 6-plate stacking platform, 7-iron sheet ditch, 8-cyclone well, 9-iron scale, 10-burr, 11-cooling slag flushing water, 12-iron scale storage pool, 13-burr storage pool, 14-first steel rail, 15-second steel rail, 16-vehicle type vibrating screen and 17-grab bucket machine.

Detailed Description

The arrangement of the device is: the casting blanks 3 stacked on the plate unloading platform 1 are pushed onto the conveying roller way 2 one by one, and then are conveyed into a scarfing machine 4 capable of running on a scarfing machine track 5 by the conveying roller way for surface cleaning, and the byproduct iron scale generated in the cleaning process is flushed into an iron scale ditch 7 by cooling slag flushing water 11 and is carried into a cyclone well 8 by water flow. The cleaned casting blank 3 is transported by the transportation roller bed 2 to the side of the plate stacking platform 6 and finally pushed to the plate stacking platform 6 for temporary storage. The iron oxide scale slag (containing iron oxide scales 9 and burrs 10) and the cooling slag flushing water 11 are layered in the cyclone well 8 due to different densities, the iron oxide scale slag sinks into the bottom layer, and the water level of the upper layer reaches a certain height and is sent into a water supply system by a lifting pump for treatment and recycling. A rectangular iron scale storage pool 12 and a rectangular burr storage pool 13 are arranged beside a cyclone well 8, a first steel rail 14 and a second steel rail 15 are arranged at the tops of two longitudinal retaining walls of the iron scale storage pool 12, and a vehicle type vibrating screen 16 is arranged on the first steel rail 14 and the second steel rail 15 and used for separating iron scales 9 from burrs 10 in iron scale slag, so that the iron scales 9 and the burrs 10 on the oversize are stored in the iron scale storage pool 12 and the burr storage pool 13 respectively. The vehicle type vibrating screen 16 can move on the track, the moving direction is the length direction of the rectangular iron oxide scale storage pool 12, and the iron oxide scale 9 and the burrs 10 can be conveniently and fully distributed in respective storage pool spaces. A special grab bucket crane 17 is arranged in the plant and is used for grabbing the iron oxide scale slag from the cyclone well 8 or grabbing the iron oxide scale from the iron oxide scale storage pool 12.

The using process of the device is as follows: firstly, the scarfing machine 4 is moved to a working position and started to a working state, then the casting blank 3 on the plate unloading platform 1 is pushed onto the conveying roller way 2, the casting blank 3 slowly enters the scarfing machine 4 for surface cleaning during the conveying process, and the casting blank 3 slowly advances until completely leaving the scarfing machine 4. The cleaned casting blank 3 is conveyed to the side of the plate stacking table 6 by the conveying roller table 2, and finally pushed to the plate stacking table 6 to be temporarily stored for later use. Molten steel and solid steel blocks generated in the casting blank flame cleaning process fall into an iron sheet ditch, are cooled by cooling water to form iron oxide sheet slag, and flow into a cyclone well 8 along with the water, when the iron oxide sheet slag is accumulated to a certain amount, the iron oxide sheet slag is grabbed out from the cyclone well 8 by using a special grab crane 17, and then is slowly discharged to a feeding port of a vehicle type vibrating screen 16, and after screening, the iron oxide sheet 9 which is a screen underflow falls into an iron oxide sheet storage tank 12, and the burrs 10 which are screen overflow into a burr storage tank 13, so that the separation of the two is realized. The separated scale 9 with large amount is transported by a belt conveyor, and the burr 10 with small amount is transported by an automobile.

Example (b): an embodiment of the present invention will be described below with reference to the accompanying drawings, which is an exemplary embodiment of a process for screening scale slag, which is a byproduct of a strand flame cleaning process.

As shown in fig. 1, a rectangular iron scale storage tank 12 and a rectangular burr storage tank 13 are arranged beside a cyclone well 8, a first steel rail 14 and a second steel rail 15 are arranged at the tops of two longitudinal retaining walls of the iron scale storage tank 12, a vehicle type vibrating screen 16 is arranged on the first steel rail 14 and the second steel rail 15, and a head grabbing machine 17 is arranged in a plant and used for grabbing iron scale slag from the cyclone well 8 or grabbing iron scale from the iron scale storage tank 12.

As shown in fig. 2, the grab head machine 17 lowers the grab bucket into the cyclone well 8 to grab out the scale slag, and then slowly discharges the scale slag to a feed inlet of the vehicle type vibrating screen 16, the vibrating screen is started in advance, the undersize scale 9 falls into the scale storage pool 12 after screening, and the oversize burr 10 slides into the burr storage pool 13. When the materials in the two storage tanks are accumulated to a certain amount, the iron scale 9 is grabbed out by using the grabbing head machine 17 and discharged onto the belt conveyor to be transported out, and the burrs 10 are shoveled by using a forklift and loaded into an automobile to be transported out.

If a variation is made by making some conventional variations on the basis of the present invention, this variation is considered to be equivalent to the present invention.

Claims

1. The utility model provides a screening plant of casting blank flame cleaning by-product iron oxide skin sediment which characterized in that: set up whirl well (8) by the casting blank clearance line in traditional continuous casting blank device, deposit iron scale (9) in whirl well (8), burr (10) and cooling towards slag water (11), set up iron scale storing pool (12) and burr storing pool (13) by whirl well (8), set up first rail (14) and second rail (15) at two vertical barricade tops of iron scale storing pool (12), install car formula shale shaker (16) on first rail (14) and second rail (15), car formula shale shaker (16) move on the track, the direction of movement is the length direction of iron scale storing pool (12).

2. A screening device according to claim 1, wherein: the screening device also comprises a grab bucket machine (17) which is arranged above the cyclone well (8) and the vehicle type vibrating screen (16).