CN2041027U

CN2041027U - Kiln body charging device of rotary kiln

Info

Publication number: CN2041027U
Application number: CN 88204292
Authority: CN
Inventors: 冯尚义
Original assignee: Iron And Steel Research Academy Panzhihua Iron And Steel Company Ministry Of M
Current assignee: Iron And Steel Research Academy Panzhihua Iron And Steel Company Ministry Of M
Priority date: 1988-04-14
Filing date: 1988-04-14
Publication date: 1989-07-12

Abstract

The utility model discloses a kiln body charging device of rotary kiln, which is characterized in that with adopting a cam mechanism and making use of the rotating power of the rotary kiln, an arc of the cam guide way and a spring, each strobe can be opened and closed, so the raw material can be loaded with certain time and quantity. The utility model can also prevent the escape of the flue gas in the kiln from polluting environment.

Description

Kiln body charging device of rotary kiln

The utility model belongs to stove charging attachment technique field, relates to the feeding device of rotary kiln kiln body charging when rotated.

At present, the metallurgy industry rotary kiln to kiln body charging, is gone back raw coal as dress when rotated, generally adopts the curve bend spoon reinforced, main by spoon shape bend pipe mouth in rotation, from hopper, raw material is packed in the curve bend, again by the rotation of kiln body with the raw material kiln body of packing into.The shortcoming of this device has:

1. charge is inhomogeneous, and the kiln internal reaction is difficult to control.

2. to often adjust the distribution of raw material in the groove, make spoonful shape bend pipe mouth can both charging feedstock in each rotation.

3. curve bend easily stops up, and is difficult for maintenance.

4. smolder in the bend pipe and cause environmental pollution.

The purpose of this utility model is, proposes a kind of neotectonics of rotary kiln body feeding device at above-mentioned shortcoming, can feed at regular time and quantity, and gas can not overflowed from charging door in the kiln.

For achieving the above object, the utility model adopts cam mechanism, utilizes the power of rotary kiln rotation, the camber line and the spring of cam, regularly opens, closes each road gate, charging at regular time and quantity, and each discharging opening, charging aperture are regularly sealed in the charging back.

Accompanying drawing 1 is back loading of kiln kiln body feeding device front view.

Accompanying drawing 2 is the left view of accompanying drawing 1.

Accompanying drawing 3 is the do not draw vertical view of feed bin of accompanying drawing 2.

Below in conjunction with accompanying drawing this practicality newly is illustrated.

A kind of rotary kiln body feeding device, mainly formed by the upper lock gate 5 of feed bin 1, bin stopper 2, kiln body hopper 4, kiln body 9, the tail gates 7 of kiln body 9, its special character is, adopt cam mechanism, utilize guide rail camber line and the spring of rotary kiln rotary power, cam, regularly open and close each road gate. Kiln body cam tracks 3 is installed on the kiln body 9, with 9 rotations of kiln body. Feed bin 1 is installed on the fixed frame in kiln body 9 tops, not with 9 rotations of kiln body. When rotary kiln counterclockwise rotates, the roller of bin stopper 2, along camber line rolling and the unlatching bin stopper 2 of kiln body cam tracks 3, the raw material in the feed bin 1 falls into kiln body hopper 4. When kiln body 9 continued counterclockwise to rotate, the roller of bin stopper 2 broke away from kiln body cam tracks 3, by the spring tension of bin stopper 2, closes bin stopper 2, stops charging. At this moment, the roller of the upper lock gate 5 of kiln body 9, along being installed on the frame of kiln body 9 outsides, not rolling with the camber line of the upper side rails 6 of kiln body 9 rotations and opens upper lock gate 5, the raw material in the kiln body hopper 4 is fallen in the following pipeline of upper lock gate 5. At that time, the tail gates 7 of kiln body 9 were still closing, and the flue gas in the kiln body 9 can not overflowed. Rotary kiln still continues counterclockwise rotation, because the roller of upper lock gate 5 breaks away from upper side rails 6, the spring tension of top gate 5 is closed upper lock gate 5. After this, the roller of the tail gates 7 of kiln body 9, immediately along being installed on the frame of kiln body 9 outsides, not rolling with the camber line of the lower side rails 8 of kiln body 9 rotations and opens tail gates 7, raw material is just fallen in the following pipeline of tail gates 7, enters kiln body 9. At that time, the upper lock gate 5 of kiln body 9 had cut out, although tail gates 7 are opened, kiln body 9 interior flue gases can be overflowed, because upper lock gate 5 cuts out, kiln body 9 interior flue gases can not enter in the air of kiln body 9 outsides and contaminated environment. When rotary kiln still continued counterclockwise to rotate, the roller of tail gates 7 broke away from lower side rails 8, and the spring tension of gate 7 is closed tail gates 7 on the lower. Like this, just in rotary kiln once rotates, finish at regular time and quantity charging action once.

The advantage of rotary kiln body feeding device of the present utility model is:

1. utilize kiln body rotation each road gate of power transmission open and close action, do not need additionaling power equipment, and compact conformation, institute takes up space little.

2. reinforced at regular time and quantity, action accurately, and is evenly reinforced.

3. cam mechanism is made up of rivet welding spare, and equipment cost is low.

4. flue gas can not overflowed from charging pipe, the charging hopper of kiln body in the kiln body, prevents contaminated environment.

Embodiment of the present utility model is, is φ 400mm at internal diameter, and the utility model feeding device is installed in the middle of the rotary kiln body 9 of the long 7000mm of being, adds the feeding device of going back raw coal as the direct reducing process of vanadium titano-magnetite pelletizing.Feed bin 1 wide 140mm, high 250mm.The kiln body hopper 4 270 * 170mm that are of a size of suitable for reading.The upper lock gate 5 of kiln body 9 is of a size of 260 * 135mm, and tail gates 7 are of a size of 260 * 135mm.The opening diameter of upper lock gate 5 and tail gates 7 all is φ 100mm.Tail gates 7 upper and lower internal diameter of the pipeline are φ 98mm.Rotary kiln has five kinds of rotating speeds, every kind of rotating speed is added go back raw coal, can both satisfy technological requirement.The charging action of feeding device is good, opens from bin stopper 2, opens to tail gates 7, goes back raw coal and falls in the kiln body 9, till tail gates 7 are closed immediately, finishes charging action at regular time and quantity once, and rotary kiln all is 45 ° of rotations.

Claims

1, a kind of rotary kiln body feeding device, mainly form by the upper lock gate 5 of feed bin 1, bin stopper 2, kiln body hopper 4, kiln body 9, the tail gates 7 of kiln body 9, it is characterized in that, the cam tracks 3 that can open and close bin stopper 2 when kiln turns round is being arranged on the kiln body 9, be fixed with on the frame outside the kiln body 9 upper lock gate 5 that when kiln turns round, can open and close kiln body 9 on side rails 6, the following side rails 8 of the tail gates 7 that when kiln turns round, can open and close kiln body 9 being fixed with on the frame outside the kiln body 9.