CN216538893U - Material device is thrown to mill dry coke quenching aggregate - Google Patents

Abstract

A dry quenching granule feeding device of a mill comprises a coke suction and discharge vehicle and a coal mill; still include nitrogen gas pressure device, feed bin, star type unloading valve, join the device, inhale the row burnt car and pass through the pipe connection feed bin, nitrogen gas pressure device connects and inhales row burnt car outlet pipe way, star type unloading valve is installed in the bottom of feed bin, and star type unloading valve connects simultaneously and joins the device, join the device and converge into the coal pulverizer with feeder unloading pipe jointly and throw the material entry. The utility model is used for supplementing the particle materials which are not easy to absorb water within 20mm and used by the grinder, meets the use requirements of various particle grinder production, eliminates the fussy operation of manual inspection, and ensures the safety production of the grinder.

Description

Material device is thrown to mill dry coke quenching aggregate

Technical Field

The utility model relates to the field of metallurgical mechanical equipment, in particular to a dry quenching aggregate feeding device of a mill.

Background

A certain iron and steel company originally designs and adopts an HP scheme, single-variety coal particles within 20mm are used, the cost of raw coal produced by blowing of the company is low, and for the reason of controlling the cost, in order to save fuel expenses, 15% -20% of coke powder, coke particles, dust removal ash recycled by a steel making furnace or a blast furnace and other industrial waste solid particles need to be added into the raw coal. In the original system, 2 sets of 60 vertical dry quenching stirring spraying devices are built in 2002, and the mixed water is added into an original coal bed on a belt through a spraying stirrer and then is conveyed to a pulverized coal bin through a belt system. The material used by the coal mill in the original design is put into the original coal bed on the belt after being mixed by adding water through the spraying stirrer, and is transported to the pulverized coal bin through the belt system. However, the indexes of water absorption, specific gravity, water absorption and the like of various mixed granular materials are different, so that in the process of belt transportation and feeding and the actual production process of a coal mill, because the water absorption of raw coal of pulverized coal granules and waste solid granules is insufficient, the mixture is not uniform, the dust in a workshop is serious, the granules escape and the environment is polluted. The manual operation, the regular inspection can only be observed by naked eyes, and the machine can only stop and drop dust when the dust is seriously raised. The existing solution is to install a set of microgravity dust removal system during annual repair, but the effect is not ideal all the time, the limited factor of the mill system is too much, and the stable production of the coal mill is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a dry quenching granule feeding device of a grinding machine, which is used for supplementing the use of particle materials which are less prone to water absorption and within 20mm of the grinding machine, meeting the use requirements of various particle grinding machine production, eliminating complex operation and guaranteeing safe production of the grinding machine.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a dry quenching granule feeding device of a mill comprises a coke suction and discharge vehicle and a coal mill; still include nitrogen gas pressure device, feed bin, star type unloading valve, join the device, inhale the row burnt car and pass through the pipe connection feed bin, nitrogen gas pressure device connects and inhales row burnt car outlet pipe way, star type unloading valve is installed in the bottom of feed bin, and star type unloading valve connects simultaneously and joins the device, join the device and converge into the coal pulverizer with feeder unloading pipe jointly and throw the material entry.

The converging device comprises an inclined discharging pipe and a converging sleeve, the converging sleeve is connected with a feeding inlet of the coal mill, the discharging pipe of the coal feeder is inserted into the converging sleeve, and the inclined discharging pipe is communicated with the converging sleeve.

The storage bin is 60m³～100m³A storage bin.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model has the advantages that various materials can be flexibly used, large-particle dedusting ash, coke dry quenching 20mm coke breeze powder, combustible light particles with poor hygroscopicity and difficult mixing with other materials, plastic micro powder particles with later auxiliary high heat, chemical residual particles and carbonized crystal micro powder with petrochemical high heat value can be recovered by a blast furnace system, and non-water-absorbing material particles can be mixed and put into a coal mill. The function of preparing the coal powder for injection by mixing various materials of the mill is added. The belt system is not required to be used for open transportation, dust hazards are reduced, workers are prevented from suffocating in dust areas, and fire and explosion accidents are avoided. The defects of dust emission and environmental pollution are avoided, and the problem of influencing discontinuous production of a belt system is eliminated. The life health of human body is protected, and the production rhythm is stabilized. The safe, controllable, healthy and stable production environment of the blast furnace is guaranteed.

Drawings

FIG. 1 is a schematic structural diagram of a mill dry quenching granular material feeding device of the utility model;

FIG. 2 is a schematic view of the construction of the confluence means in the present invention.

In the figure: 1. the coke feeding and discharging device comprises a coke suction and discharging vehicle, a pipeline 2, a bunker 3, a star-shaped ash discharge valve 4, a converging device 5, a coal mill 6, a nitrogen pressurizing device 7, an inclined discharging pipe 8, a coal feeder discharging pipe 9, a converging sleeve 10, a coal mill feeding inlet 11 and a coal feeder 12.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1, a dry quenching granule feeding device of a mill comprises a coke suction and discharge vehicle 1 and a coal mill 6; still include nitrogen gas pressure device 7, feed bin 3, star type dust discharging valve 4, converge device 5, inhale row burnt car 1 and connect feed bin 3 through pipeline 2, nitrogen gas pressure device 7 is connected and is inhaled row burnt car 1 outlet pipe, star type dust discharging valve 4 is installed in the bottom of feed bin 3, and star type dust discharging valve 4 is connected simultaneously and is converged device 5, converge device 5 and feeder unloading pipe 9 and converge into the coal pulverizer jointly and throw material entry 11.

Referring to fig. 2, the converging device 5 comprises a slant blanking pipe 8 and a converging sleeve 10, the converging sleeve 10 is connected with a coal mill feeding inlet 11, the coal feeder blanking pipe 9 is inserted into the converging sleeve 10, and the slant blanking pipe 8 is communicated with the converging sleeve 10.

The feed bin 3 is 60m³～100m³A storage bin.

The specific working process is as follows:

the particle materials are connected into the pipeline 2 by the suction and discharge tank car 1 arranged outside, the particle materials are pressurized by nitrogen through the nitrogen pressurizing device 4 arranged on the pipeline 2, the mixed particle materials are sprayed into the ascending pipeline 2 through the suction and discharge tank car 1, and the particle materials are sprayed into the storage bin 3 through the pipeline 2. A star-shaped ash discharge valve 4 is arranged below the stock bin 3, the blanking amount is adjusted, so that the particle materials enter a converging device 5 above a feeding inlet 11 of the coal mill through the stock bin 3, and are fed into the coal mill 6 together with the blanking of a coal feeder 12 to participate in the grinding process of the coal particles in the coal mill 6.

The converging device 5 is of a double-layer sleeve structure, the feeding pipe 9 of the coal feeder directly leads into the middle pipe area of the converging device 5 to feed materials, converging particle materials are fed at the periphery, the materials fall in different areas and are not interfered mutually, the device can reduce covering materials, and the feeding pipe resistance during the production of the mill is eliminated.

Meanwhile, a vehicle inlet pipeline filter of the suction and discharge tank car 1 is added, and the blockage of the pipeline caused by throwing the sundries is reduced.

The device provided by the utility model can be used for storing and storing materials in a closed manner, and is safe and dustless. The problem of original mill material loading belt system production pollution raise dust can't be restrained is solved, the material that original dry coke quenching agitated vessel mixes, partial heavy metal dust escape outward, factory building raise dust such as belt vestibule is serious, and the granule is very easily raised dust, the polluted environment is solved.

Claims (3)

1. A dry quenching granule feeding device of a mill comprises a coke suction and discharge vehicle and a coal mill; its characterized in that still includes nitrogen gas pressure device, feed bin, star type unloading valve, joins the device, inhale the row burnt car and pass through the pipe connection feed bin, nitrogen gas pressure device connects and inhales row burnt car outlet pipe way, the bottom at the feed bin is installed to star type unloading valve, and star type unloading valve connects simultaneously and joins the device, join the device and converge into the coal pulverizer jointly with feeder unloading pipe and throw the material entry.

2. The mill dry quenching aggregate feeding device as claimed in claim 1, wherein the converging device comprises a slant blanking pipe and a converging sleeve, the converging sleeve is connected with a feeding inlet of a coal mill, the feeding pipe of the coal mill is inserted into the converging sleeve, and the slant blanking pipe is communicated with the converging sleeve.

3. The mill dry quenching aggregate feeding device as claimed in claim 1, wherein the bin is 60m³～100m³A storage bin.

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