CN102927832A - Rotary kiln ring forming device - Google Patents

Abstract

The rotary kiln knotting device of the present invention is characterized in that it is composed of a fixed bracket connected with the forklift teeth of the inserted car, a telescopic rake rod connected with the fixed bracket and a rake head fixedly connected with the telescopic rake rod. The above-mentioned fixed bracket is fixedly connected with the forklift teeth of the inserted vehicle through bolts and clamping plates. The rake head is a flat rake head, a toothed rake head or a hook. The advantages are: after adopting the block picking device, it completely eliminates the problems of high ambient temperature, high labor intensity, low work efficiency and personal safety during the block picking operation. It solves the harm caused by the ring formation of the rotary kiln to the stable production, reduces the number of heating and cooling times and the generation of waste pellets, reduces energy consumption, and prolongs the service life of the equipment. Not only that, the device is flexible and convenient to use, low in cost, easy to manufacture and reusable.

Description

Rotary kiln ring forming device

technical field

The invention belongs to the technical field of sintering equipment, and in particular relates to a rotary kiln ring forming device.

Background technique

In recent years, my country's pellet industry has developed rapidly, and there are more than 50 production lines of grate-rotary kiln pellets with a capacity of more than 2 million tons in the country. With the continuous improvement and maturity of production technology, the iron pellets produced have high grade iron, uniform particle size, good strength and less powder, which meet the requirements of blast furnace production. However, the ring formation of the rotary kiln seriously restricts the production and development of pellets. After research and analysis, there are three main reasons for ring formation in the rotary kiln: first, due to the poor strength of preheating balls and low bursting temperature of green balls, more powder enters the rotary kiln; The third is improper control of the thermal system, resulting in local high temperature of the rotary kiln, and agglomeration and ring formation in the kiln. Under normal circumstances, the cycle of forming loops ranges from 20 days to 40 days. The method of dealing with loops mainly includes the rapid cooling method, that is, quenching the loops with wind and water, so that they will shrink unevenly and fall off automatically; the ring burning method is Adjust the length and position of the flame, use the high-temperature flame to burn off the rings; the cannon method is to use a cannon to aim at the ring block to find and break it; the mechanical vibration method is to stop the kiln for cooling and manually make rings. The last method is labor-intensive and will cause great damage to the lining material. It is only used when the refractory material is to be replaced, so this method is generally not used to deal with the ring formation. The first three methods can be carried out during the production process, but the processed ring blocks will come out of the kiln head to the fixed screen, and manual tools (rake and iron brazing) are required to remove the large blocks from the fixed screen and send them to Storage in large chute. When the amount of loops increases to a certain extent, it is difficult for manual workers to handle, so they can only stop the machine and cool down for processing, and the processing time is about 2 hours to 4 hours each time. Seriously affect the stable production. Not only that, but frequent heating and cooling results in a large amount of waste pellets, increased energy consumption, increased equipment damage, and negative impacts on labor intensity and safety.

Contents of the invention

The purpose of the present invention is to provide a rotary kiln structure that improves the efficiency of chopping, saves time, reduces the labor intensity of the post, prolongs the service life of the equipment, ensures the safety of personnel, and ensures continuous and stable operation of the rotary kiln when a large number of rings are formed in the rotation. Ring block device.

The purpose of the present invention is to realize in the following way:

The rotary kiln knotting device of the present invention is characterized in that it is composed of a fixed bracket connected with the forklift teeth of the inserted car, a telescopic rake rod connected with the fixed bracket and a rake head fixedly connected with the telescopic rake rod. The above-mentioned fixed bracket is fixedly connected with the forklift teeth of the inserted car through bolts and clamping plates.

The rake head is a flat rake head, a toothed rake head or a hook.

The telescopic rake rod is composed of an inner rod and an outer rod sleeved on the inner rod. There are fixed screw holes on the inner rod and the outer rod, and the screw holes of the inner rod and the outer rod are connected by locking Nut locked.

The advantages of the present invention are: after adopting the chopping device, the problems of high ambient temperature, high labor intensity, low work efficiency and personal safety during the chopping operation of the post are completely eliminated. It solves the harm caused by the ring formation of the rotary kiln to the stable production, reduces the number of heating and cooling times and the generation of waste pellets, reduces energy consumption, and prolongs the service life of the equipment. Not only that, the device is flexible and convenient to use, low in cost, easy to manufacture and reusable.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a schematic diagram of the flat harrow head of the present invention.

FIG. 3 is a side view of FIG. 2 .

Fig. 4 is a schematic diagram of the toothed harrow head of the present invention.

FIG. 5 is a side view of FIG. 4 .

Fig. 6 is a schematic diagram of the rake hook of the present invention.

Detailed ways

The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

As shown in Figure 1, the rotary kiln ring-forming device of the present invention is characterized in that the fixed bracket 3 connected with the forklift teeth 6 inserted in the car, the telescopic rake rod 2 connected with the fixed bracket 3 and the telescopic rake connected with the telescopic rake The rod 2 is fixedly connected to the rake head 1, and the fixed bracket 3 is fixedly connected to the forklift teeth 6 inserted into the vehicle through bolts 5 and clamping plates 4.

The telescopic rake rod of the present invention is composed of an inner rod 2-1 and an outer rod 2-2 sleeved on the inner rod 2-1, and the inner rod 2-1 and the outer rod 2-2 are provided with The fixed screw hole 2-4 is locked by the locking nut 2-3 after the screw hole 2-4 of the inner rod 2-1 and the outer rod 2-2 are docked.

In order to meet the needs of the actual block removal on site, the rake head of the present invention is designed into three structures: flat rake head 1-1, toothed rake head 1-2 or rake hook 1-3, and the flat rake head is suitable for fixing when the lower blocks are concentrated Work when there are a large number of blocks on the screen; the toothed rake head is suitable for the operation of a small amount of large blocks or the mixture of large blocks and pellets; the hook is suitable for the operation of large individual blocks or when the block is clamped in the gap of the fixed screen.

Claims (3)

1. a ring formation of rotary kiln is taken off block assembly, it is characterized in that the fixed support that is connected by with the forklift tooth of plug in car, the flexible raking arm of fixed support connection forms with the drag head that the raking arm that stretches therewith is fixedly connected with therewith, and described fixed support is fixedly connected with clamp by bolt with the forklift tooth of plug in car.

2. ring formation of rotary kiln according to claim 1 is taken off block assembly, it is characterized in that described drag head is flat drag head, tooth harrow head or rake hook.

3. ring formation of rotary kiln according to claim 1 is taken off block assembly, it is characterized in that described flexible raking arm is comprised of interior bar and the outer bar that is socketed on the interior bar, have at described interior bar and outer bar and to decide screw, is locked by lock nut after the docking of the screw of bar and outer bar in it.

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