CN216107041U - Quick-release type vibrating screen for blast furnace feeding - Google Patents

Abstract

The utility model relates to a quick-release type vibrating screen for blast furnace feeding, and belongs to the technical field of blast furnace iron-making material preparation in the metallurgical industry. The technical scheme is as follows: a vibration exciter is arranged on the vibrating screen box body (6), a powder feed opening (17) is arranged below the vibrating screen box body (6), a screen surface support (1) is arranged above the vibrating screen box body (6), a plurality of screen surface modules (2) which are arranged in a downward inclined mode are arranged on the screen surface support (1), and a drawer type structure is formed between each screen surface module (2) and the screen surface support (1); the screen surface module (2) is of a rectangular frame structure, screen rods (11) are arranged in the rectangular frame at intervals, and a screen surface module handle (3) is arranged on one side of the rectangular frame; the sieve rod (11) in a plurality of sieve face module (2) constitutes the sieve face of downward sloping, and the higher one end of sieve face is located the below of feed bin feed opening (22), and the lower one end of sieve face is equipped with weighing hopper (16). The utility model has the beneficial effects that: the disassembly, the assembly and the replacement are convenient, and the working efficiency is improved.

Description

Quick-release type vibrating screen for blast furnace feeding

Technical Field

The utility model relates to a quick-release type vibrating screen for blast furnace feeding, and belongs to the technical field of blast furnace iron-making material preparation in the metallurgical industry.

Background

The ores and cokes required for blast furnace smelting produce a large amount of fines during transportation and transfer, which are detrimental to smelting and require screening. And the work is completed by a vibrating screen below the blast furnace groove. The sieve that shakes is generally installed in big feed bin lower part, and the big storehouse unloading back starts the sieve that shakes, and the furnace charge gets into the weighing hopper through the sifter, and the powder falls into the returning charge chute with unqualified small-granularity's raw materials via the sieve rod clearance on the sieve surface that shakes, accomplishes the powder separation, because the sieve that shakes produces the raise dust easily when shaking vibrations, need install the environmental protection dust excluding hood at the sieve surface that shakes. In the production process, the gaps of the sieve rollers are easily blocked by small-granularity furnace charges or wet powder agglomerates and the like, so that the sieving function is lost, the powder in the furnace charges cannot be sieved and enters a blast furnace, the condition of the blast furnace is abnormal, and the sieve rollers need to be cleaned regularly. The tradition way is, need to shake the dust excluding hood on sieve surface and tear open and remove, exposes the sifter, and the manual work is cleared up the sieve rod clearance in turn with the instrument, and this method is owing to need demolish the environmental protection dust excluding hood to by the artifical long-pending material between manual rejection sieve rod, then just can put into use after installing the environmental protection dust excluding hood again, this process is very waste time, hard, and the maintenance cost is high, and the time has been of a specified duration and has still influenced the production order. In addition, the vibrating screen needs to be replaced only by removing the dust hood after being replaced after being damaged, and the process is time-consuming.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a quick-release vibrating screen for blast furnace feeding, which is convenient to disassemble, assemble and replace, improves the working efficiency and solves the problems in the background technology.

The technical scheme of the utility model is as follows:

a quick-release type vibrating screen for blast furnace feeding comprises a screen surface support, screen surface modules, a screen surface module handle, a vibrating screen box body, screen rods and a powder feed opening, wherein a vibration exciter is arranged on the vibrating screen box body; the screen surface module is of a rectangular frame structure, screen rods arranged at intervals are arranged in the rectangular frame, and a screen surface module handle is arranged on one side of the rectangular frame; the sieve rod in the sieve face module that a plurality of downward sloping was arranged constitutes the sieve face of downward sloping, and the higher one end of sieve face is located the below of feed bin feed opening, and the lower one end of sieve face is equipped with the weighing hopper.

The screen surface module is characterized in that a screen surface module bolt bayonet is arranged on the rectangular frame of the screen surface module, and a support bolt bayonet matched with the screen surface module bolt bayonet is arranged on the screen surface support.

The screen surface module is fixed on the screen surface support through a fixing bolt and a nut.

And a support rubber sheath is arranged on the screen surface support.

The vibration exciter on the vibrating screen box body comprises a lower vibration exciter and an upper vibration exciter which are fixed on the vibrating screen box body.

The vibrating screen box body is fixed on the ground through the vibrating screen base.

The utility model has the beneficial effects that: the sifter of screening material has a plurality of modules to constitute, utilizes the principle of drawer, when changing the sifter module, pulls out the sifter support with the sifter module that needs to handle, pack into new sifter module can, the process is simple, labour saving and time saving has solved traditional sifter and has changed the problem that the clearance is wasted time and energy.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of a screening surface support of the present invention;

FIG. 3 is a side view of a screening surface support of the present invention;

FIG. 4 is a schematic view of a screening surface module of the present invention;

FIG. 5 is a schematic view of the present invention in use;

in the figure: sifter support 1, sifter module 2, sifter module handle 3, fixing bolt 4, nut 5, vibrating screen box 6, feed opening baffle 7, sifter sealing cover 8, support rubber sheath 9, support bolt bayonet 10, sieve rod 11, observation hole 12, sifter module bolt bayonet 13, lower vibration exciter 14, upper vibration exciter 15, weighing hopper 16, powder feed opening 17, powder returning belt 18, feeding belt 19, large bunker 20, bunker discharge gate 21, bunker discharge opening 22, vibrating screen base 23, and vibrating screen rear support beam 24.

Detailed Description

The utility model is further illustrated by way of example in the following with reference to the accompanying drawings.

Referring to the attached drawings 1-5, the quick-release type vibrating screen for feeding the blast furnace comprises a screen surface support 1, screen surface modules 2, a screen surface module handle 3, a vibrating screen box body 6, screen rods 11 and a powder feed opening 17, wherein a vibration exciter is arranged on the vibrating screen box body 6, the powder feed opening 17 is arranged below the vibrating screen box body 6, the screen surface support 1 is arranged above the vibrating screen box body 6, the screen surface support 1 is provided with a plurality of screen surface modules 2 which are arranged in a downward inclination manner, and a drawer type structure is formed between each screen surface module 2 and the screen surface support 1; the screen surface module 2 is of a rectangular frame structure, screen rods 11 which are arranged at intervals are arranged in the rectangular frame, and a screen surface module handle 3 is arranged on one side of the rectangular frame; the sieve rods 11 in the sieve face modules 2 arranged in a downward inclined mode form a sieve face inclined downward, the higher end of the sieve face is located below the feed opening 22 of the storage bin, and the lower end of the sieve face is provided with a weighing hopper 16.

In this embodiment, referring to fig. 1-4, a screen support 1 is welded on the upper surface of a vibrating screen box 6, the screen support 1 is a frame formed by welding channel steel, three holes matched with screen modules 2 are formed in the frame, three faces of the frame in the height direction are sealed by a thin steel plate, a side face is reserved for push-pull installation of the screen modules 2, and a plurality of support bolt bayonets 10 are arranged on the channel steel of the side face; the upper surface of the welding top end of the vibrating screen bracket 1 is welded on the feed opening baffle 7; the surface of the frame of the screen surface support 1 is paved with a rubber protective skin 9, and the rubber protective skin is fixed by self-tapping, plays a role in shock absorption and protects the screen surface module 2.

The screen surface module 2 is a rectangular frame structure formed by welding square pipes, the frame is just plugged into a hole of the screen surface support 1 in size, a screen rod 11 is welded in the middle of the frame in the horizontal direction, and different screen rod gaps are arranged according to different materials and used for screening out powder; a plurality of screen surface module bolt bayonets 13 are arranged on the edge of the frame, and the screen surface module bolt bayonets 13 correspond to the positions of the support bolt bayonets 10 on the vibrating screen frame; handle 3 is welded on the screening surface module 2, three screening surface modules 2 are pushed into the holes of the vibrating screen support 1, the movable bolts 4 are pulled up and placed into the screening surface module bolt bayonet 13 and the support bolt bayonet 10, the other ends of the movable bolts are screwed up by the screw caps 5, and the screening surface module 2 is fixed on the screening surface frame 1.

Referring to fig. 5, the present invention is installed under a large bunker 20, and is fixed to the ground by a vibrating screen base 23 and a vibrating screen rear support beam 24. When the vibrating screen works, the lower vibration exciter 14 and the upper vibration exciter 15 are started firstly to vibrate the screen, then a lower gate of the bin is opened, furnace burden enters the blanking port baffle 7 through the blanking port 22 of the bin, the furnace burden slides to the surface of the screen surface module 2 under the action of gravity, at the moment, the screen surface vibrates up and down, so the furnace burden is bumpy up and down to be screened, powder leaks down through a gap of the screen roller 11, is collected in the vibrating screen box body 6, then falls onto the powder returning belt 18 to be taken away, and the falling condition of the powder can be observed from the observation hole 12; and the large-particle materials pass through the screen surface and then enter a weighing hopper 16 for weighing, and finally fall onto a moving feeding belt 19 through a gate to enter a blast furnace charging bucket.

The lower exciter 14 and the upper exciter 15 are vibration devices commonly used in the art.

According to the utility model, the screen surface is divided into a plurality of modules according to the drawer principle, when the screen surface needs to be replaced and processed, the fixing bolts 4 are detached, the screen surface module handles 3 are pulled, the screen surface module 2 is drawn out, a new screen surface module is pushed in, and the fastening bolts 4 are fixed. The screen surface module 2 which is replaced is well repaired for standby, the replacement process is simple, and time and labor are saved.

Claims (6)

1. A quick-release vibrating screen for blast furnace charging, characterized in that: comprising a screen surface support (1), a screen surface module (2), a screen surface module handle (3), a vibration screen box (6), a screen surface The rod (11) and the powder feeding port (17) are provided with a vibration exciter on the vibrating screen box (6), and the powder feeding port (17) is provided under the vibrating screen box (6). A screen surface support (1) is arranged above the box body (6), and a plurality of screen surface modules (2) arranged inclined downward are arranged on the screen surface support (1). Each screen surface module (2) is connected to the screen surface A drawer structure is formed between the brackets (1); the screen surface module (2) is a rectangular frame structure, the rectangular frame is provided with screen rods (11) arranged at intervals, and one side of the rectangular frame is provided with a screen surface module handle ( 3); the sieve rods (11) in the screen surface modules (2) arranged inclined downwards form a downwardly inclined screen surface, and the higher end of the screen surface is located below the discharge opening (22) of the silo, and the screen The lower end of the face is provided with a weighing bucket (16). 2. A quick-release vibrating screen for blast furnace charging according to claim 1, characterized in that: the rectangular frame of the screen surface module (2) is provided with a screen surface module bolt bayonet (13), and the screen surface module (2) is provided with a screen surface module bolt bayonet (13). The surface bracket (1) is provided with a bracket bolt bayonet (10) matched with the screen surface module bolt bayonet (13). 3. A quick-release vibrating screen for blast furnace charging according to claim 2, characterized in that: the screen surface module (2) is fixed on the screen surface bracket by fixing bolts (4) and nuts (5) (1) on. 4 . The quick-release vibrating screen for blast furnace charging according to claim 1 , wherein the screen surface support ( 1 ) is provided with a support rubber sheath ( 9 ). 5 . 5. A quick-release vibrating screen for blast furnace charging according to claim 1, characterized in that: the vibration exciter on the vibrating screen box (6) comprises a vibration exciter fixed on the vibrating screen box (6). The lower exciter (14) and the upper exciter (15). 6 . The quick-release vibrating screen for blast furnace charging according to claim 1 , wherein the vibrating screen box ( 6 ) is fixed on the ground through the vibrating screen base ( 23 ). 7 .

Images