阅读说明：本技术 一种中频炉的高效除尘系统 (Efficient dust removal system of intermediate frequency furnace ) 是由 刘会权 于 2018-08-01 设计创作，主要内容包括：本发明涉及除尘技术领域,具体是一种中频炉的高效除尘系统,包括集尘罩、冷却器、喷淋塔和烟囱,其特征是：中频炉附近固定装有一根竖直的排烟管道,排烟管道顶部通过旋转轴承装有一根以排烟管道为轴心旋转的集尘罩连接管,集尘罩连接管与集尘罩固定连接,排烟管道底端埋入厂房地面以下并伸出厂房外部与冷却器进口连接,排烟管道位于冷却器进口前装有引风机A,冷却器的出口通过装有引风机B的管道与喷淋塔的进气口连接,喷淋塔的出气口通过装有引风机C的管道与烟囱的进口连接；本发明厂房内的排烟管道不干扰中频炉上方的加料操作,烟气粉尘处理量可变,节约电能,适用于对现有中频炉除尘装置的改进。(The invention relates to the technical field of dust removal, in particular to a high-efficiency dust removal system of an intermediate frequency furnace, which comprises a dust hood, a cooler, a spray tower and a chimney, and is characterized in that: a vertical smoke exhaust pipeline is fixedly arranged near the intermediate frequency furnace, the top of the smoke exhaust pipeline is provided with a dust hood connecting pipe which rotates by taking the smoke exhaust pipeline as an axis through a rotating bearing, the dust hood connecting pipe is fixedly connected with a dust hood, the bottom end of the smoke exhaust pipeline is embedded below the ground of a factory building and extends out of the factory building to be connected with the inlet of a cooler, the smoke exhaust pipeline is provided with an induced draft fan A before the inlet of the cooler, the outlet of the cooler is connected with the air inlet of a spray tower through a pipeline provided with an induced draft fan B, and the air outlet of the spray tower is connected with the inlet of a chimney; the smoke exhaust pipeline in the workshop does not interfere the feeding operation above the intermediate frequency furnace, the smoke dust treatment capacity is variable, the electric energy is saved, and the smoke exhaust pipeline is suitable for improving the existing intermediate frequency furnace dust removal device.)

1. The utility model provides an efficient dust removal system of intermediate frequency furnace, includes dust cage, cooler, spray column and chimney, characterized by: near fixed being equipped with a vertical exhaust pipe of intermediate frequency furnace, exhaust pipe top is equipped with one through the rotation bearing and uses exhaust pipe as the rotatory dust cage connecting pipe of axle center, dust cage connecting pipe and dust cage fixed connection, the exhaust pipe bottom is buried the factory building below ground and is stretched out the factory building outside and cooler access connection, exhaust pipe is equipped with draught fan A before being located the cooler import, the export of cooler is connected with the air inlet of spray column through the pipeline that is equipped with draught fan B, the gas outlet of spray column is through the access connection of the pipeline that is equipped with draught fan C and chimney.

2. The high-efficiency dust removing system of the intermediate frequency furnace as set forth in claim 1, which is characterized in that: the cooler comprises an upper buffer box, the top of the upper buffer box is provided with an inlet, the bottom and the side of the upper buffer box are connected with a plurality of branch pipes communicated with the upper buffer box, the bottoms of all the branch pipes are connected with a lower buffer box and communicated with the lower buffer box, and the bottom of the lower buffer box is provided with an outlet.

3. The high-efficiency dust removing system of the intermediate frequency furnace as set forth in claim 1, which is characterized in that: the spray tower comprises a tank body, an air inlet is formed in the side wall of the tank body, an air outlet is formed in the top of the tank body, circulating liquid is filled in the bottom of the tank body, at least two groups of spray devices are arranged above the circulating liquid, each group of spray devices comprises a main pipe, a plurality of branch pipes communicated with the main pipe are arranged on the main pipe, a plurality of nozzles are arranged at the bottoms of the main pipe and all the branch pipes, and each main pipe is communicated with the bottom of the tank body through a pipeline provided.

4. The high-efficiency dust removing system of the intermediate frequency furnace as claimed in claim 3, which is characterized in that: the high-efficiency dust removal system comprises at least two spray towers, a branch connecting pipe is arranged at the air inlet of each spray tower, an induced draft fan B is arranged on each branch connecting pipe, all branch connecting pipes are connected with a main connecting pipe, the main connecting pipe is connected with the outlet of a cooler, and the air outlets of all spray towers are converged into the same pipeline and are connected with the inlet of a chimney.

Technical Field

The invention relates to the technical field of dust removal, in particular to a high-efficiency dust removal system of an intermediate frequency furnace.

Background

At present, molten iron is smelted mainly by an intermediate frequency furnace in the steel making industry of China, but a large amount of flue gas dust generated in the production process of the intermediate frequency furnace causes serious environmental pollution, and the common treatment mode is to arrange a dust collection cover above a furnace body of the intermediate frequency furnace to send the flue gas dust to the outside of a workshop and then treat the flue gas dust by various dust removal devices.

The smoke exhaust pipeline connected with the dust hood usually penetrates out of the wall of a factory building, and the intermediate frequency furnace is generally used for conveying and feeding materials from the top of the furnace body through a travelling crane, so that the feeding materials are easily interfered by the arrangement of the smoke exhaust pipeline, and the factory building is not attractive in arrangement;

the flue gas volume that produces when the different types of raw materials are smelted to the intermediate frequency furnace is different, and the handling capacity of general dust collector is invariable, consequently generally equips dust collector according to maximum flue gas volume, can cause the electric energy waste when the flue gas volume is little so.

Disclosure of Invention

The invention aims to solve the problems that the smoke exhaust pipeline of the existing dust removal device penetrates out of the wall of a factory building to interfere with feeding, and the layout of the factory building is not beautiful; the problem that a high-power dust removal device wastes electric energy is solved, and a high-efficiency dust removal system of the intermediate frequency furnace is provided.

The specific scheme of the invention is as follows: the utility model provides a high-efficient dust pelletizing system of intermediate frequency furnace, including the dust cage, the cooler, spray column and chimney, near fixed vertical exhaust pipe that is equipped with of intermediate frequency furnace, the exhaust pipe top is equipped with one through the rotation bearing and uses the exhaust pipe as the rotatory dust cage connecting pipe in axle center, dust cage connecting pipe and dust cage fixed connection, the exhaust pipe bottom is buried the factory building below ground and is stretched out the factory building outside and cooler access connection, draught fan A is equipped with before the exhaust pipe is located the cooler import, the export of cooler is connected with the air inlet of spray column through the pipeline that is equipped with draught fan B, the gas outlet of spray column is through the access connection of the pipeline that is equipped with draught fan C and chimney.

The cooler comprises an upper buffer tank, wherein the top of the upper buffer tank is provided with an inlet, the bottom and the side surface of the upper buffer tank are connected with a plurality of branch pipes communicated with the upper buffer tank, the bottoms of all the branch pipes are connected with a lower buffer tank and communicated with the lower buffer tank, and the bottom of the lower buffer tank is provided with an outlet.

The spray tower comprises a tank body, wherein the side wall of the tank body is provided with an air inlet, the top of the tank body is provided with an air outlet, the bottom in the tank body is provided with circulating liquid, at least two groups of spray devices are arranged above the circulating liquid, each group of spray devices comprises a main pipe, the main pipe is provided with a plurality of branch pipes communicated with the main pipe, the bottoms of the main pipe and all the branch pipes are provided with a plurality of nozzles, and each main pipe is communicated with the bottom of the tank body through a pipeline provided with.

The high-efficiency dust removal system comprises at least two spray towers, wherein a branch connecting pipe is arranged at the air inlet of each spray tower, an induced draft fan B is arranged on each branch connecting pipe, all the branch connecting pipes are connected with a main connecting pipe, the main connecting pipe is connected with the outlet of a cooler, and the air outlets of all the spray towers are converged into the same pipeline to be connected with the inlet of a chimney.

The working principle of the invention is as follows: the smoke exhaust pipeline connected with the dust hood extends downwards to be bought under the ground and extends out of the plant from the ground bottom, so that the interference on operations such as feeding and the like is avoided, and the arrangement of the plant is more attractive; draught fan A and draught fan C are normally open during the dust removal, and when the flue gas dust volume is big, the booster pump of all spray towers and corresponding draught fan B open, and the handling capacity is the biggest this moment, only opens the booster pump and corresponding draught fan B of one or several spray towers can according to actual conditions when the flue gas dust volume is hour.

Compared with the prior art, the invention has the following advantages: 1. the interference to operations such as feeding and the like is avoided, and the plant layout is more attractive; 2. the handling capacity of the flue gas dust can be changed according to the actual situation, and the electric energy is saved.

Drawings

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

FIG. 2 is a perspective view of the cooler construction of the present invention;

FIG. 3 is a front view of the spray tower of the present invention;

FIG. 4 is a view A-A of FIG. 3;

FIG. 5 is a view B-B of FIG. 1;

in the figure: 1-factory building, 2-intermediate frequency furnace, 3-rotating bearing, 4-smoke exhaust pipeline, 5-dust hood connecting pipe, 6-dust hood, 7-induced draft fan A, 8-cooler, 81 upper buffer tank, 82-branch pipe, 83-lower buffer tank, 9-spray tower, 91-spray tower gas outlet, 92-tank body, 93-spray device, 931-main pipe, 932-branch pipe, 933-nozzle, 94-booster pump, 95-spray tower gas inlet, 10-induced draft fan B, 11-induced draft fan C, 12-chimney, 13-branch connecting pipe, 14-total connecting pipe and 15-traveling crane.

Detailed Description

Referring to fig. 1-5, the embodiment includes a dust hood 6, a cooler 8, a spray tower 9 and a chimney 12, a vertical smoke exhaust pipe 4 is fixedly installed near the intermediate frequency furnace 2, a dust hood connecting pipe 5 rotating with the smoke exhaust pipe 4 as an axis is installed at the top of the smoke exhaust pipe 4 through a rotating bearing 3, the dust hood connecting pipe 5 is fixedly connected with the dust hood 6, the bottom end of the smoke exhaust pipe 4 is embedded below the ground of the factory building 1 and extends out of the factory building 1 to be connected with an inlet of the cooler 8, an induced draft fan a7 is installed before the inlet of the cooler 8 in the smoke exhaust pipe 4, an outlet of the cooler 8 is connected with a spray tower air inlet 95 through a pipeline provided with an induced draft fan B10, and a spray tower air outlet 6391 is connected with an inlet of the chimney 12 through.

This embodiment cooler 8 includes buffer tank 81, goes up the buffer tank 81 top and is equipped with the import, goes up buffer tank 81 bottom and side and is connected with the bleeder 82 of a plurality of roots and last buffer tank 81 intercommunication, and buffer tank 83 and lower buffer tank 83 intercommunication are connected down to all bleeder 82 bottoms, and lower buffer tank 83 bottom is equipped with the export.

The spray tower 9 described in this embodiment includes a tank 92, a gas inlet is provided on the side wall of the tank 92, a gas outlet is provided on the top of the tank 92, a circulating liquid is provided at the bottom inside the tank 92, at least two groups of spray devices 93 are provided above the circulating liquid, each group of spray devices 93 includes a main pipe 931, a plurality of branch pipes 932 communicated with the main pipe 931 are provided on the main pipe 931, a plurality of nozzles 933 are provided at the bottoms of the main pipe 931 and all the branch pipes 932, and each main pipe 931 is communicated with the bottom of the tank 92 through a pipe provided with a.

This embodiment high-efficient dust pelletizing system includes two at least spray towers 9, and a minute connecting pipe 13 is equipped with to the air inlet of every spray tower 9, is equipped with an induced draft fan B10 on every minute connecting pipe 13, and all minute connecting pipes 13 are connected with a total connecting pipe 14, and total connecting pipe 14 and cooler 8's exit linkage, and the gas outlet of all spray towers 9 is converged and is connected with the access connection of chimney 12 with same root pipeline.