CN202499919U

CN202499919U - Smoke collecting device with double smoke pipes

Info

Publication number: CN202499919U
Application number: CN2012201078739U
Authority: CN
Inventors: 陈颖
Original assignee: Guiyang Aluminum Magnesium Design and Research Institute Co Ltd
Current assignee: Guiyang Aluminum Magnesium Design and Research Institute Co Ltd
Priority date: 2012-03-21
Filing date: 2012-03-21
Publication date: 2012-10-24
Anticipated expiration: 2022-03-21

Abstract

The utility model discloses a smoke collecting device with double smoke pipes. The smoke collecting device is characterized in that an upper smoke pipe (3) is connected with one end of a smoke collecting box (1); a lower smoke pipe (4) is connected with the outer end head of one end of the smoke collecting box (1); and one group of flow guide steel plate (2) is arranged at the end part of a collecting opening of the smoke collecting box (1). According to the smoke collecting device, the ventilation systems of the conventional smoke collecting box with a single smoke pipe and the conventional collecting box with double smoke pipes of an electrolytic cell are improved, and a ventilation opening is arranged at the outer end head of one end of the conventional smoke collecting box with the single smoke pipe and is used for collecting smoke when the electrolytic cell is opened; and as the collecting opening is not arranged in the smoke collecting box, a horizontal smoke channel on the smoke collecting box is eliminated, so that the problem of material deposition caused by the horizontal smoke channel is solved, therefore, the normal collection of electrolytic smoke is guaranteed, and the energy consumption is reduced.

Description

Two smoke pipe smoke collecting devices

Technical field

The utility model relates to the smoke collecting device that is used for the interior flue gas of receiving tank on the electrolyzer in a kind of aluminum electrolysis, belongs to the electrolytic aluminum field.

Background technology

Along with the continuous development of aluminium industry, and the deepening constantly of country's " energy-saving and emission-reduction " thought of calling, the aluminium industry is strict more to the emission standard control of polluting, and how to solve this difficult problem, also becomes everybody institute's questions of common interest.At present, need the field of minimizing disposal of pollutants also a lot of in the aluminum electrolysis, can not describe one by one at this, the utility model only proposes a kind of new smoke collecting device to this a part of energy-saving and emission-reduction problem of electrolyzer production in the electrolysis field.As everyone knows, at present, the mode of collecting flue gas in the electrolysis of aluminum prior art is varied; Wherein most typical collection flue gas mode is a cone-shaped hood collection smoke box, and this structure collection smoke box sidepiece has suction opening, and the bottom is provided with Lou material mouth; One end of collection smoke box is connected with one or two smoke exhaust pipes; Because smoke exhaust pipe links to each other with blower fan, when ordinary production, because electrolyzer is airtight (being locked groove); Therefore under the blower fan running; This moment, electrolyzer can produce negative pressure, and the exhausting hole that a large amount of harmful smokes that this negative pressure produces when making electrolysis production and dust are all opened via collection smoke box sidepiece gets in the collection smoke box, finally through entering atmosphere behind the smoke exhaust pipe entering smoke eliminator.Because during the electrolyzer ordinary production; Need often open closed cell cover (i.e. fluting) and carry out production operation; This moment is in order to reduce the amount of leakage of flue gas; Just need to strengthen the exhausting amount, traditional single smoke pipe design is exactly with the smoke exhaust pipe enlarged diameter, controls the exhausting amount of fluting and locked groove with variable valve; This traditional single smoke pipe design can cause fluting and locked groove operating mode not effectively separately to bring exhausting deficiency or exhausting excessive, thereby causes exhausting amount inhomogeneous and the production instability and the energy consumption increase that bring.In order to address this problem, existing at present part aluminium manufacturer has adopted two smoke pipe technology, promptly is provided with two smoke pipes in collection smoke box termination; Flue gas when wherein a smoke pipe is used to extract locked groove (this moment, another smoke pipe was closed) when fluting, is then opened exhausting with another smoke pipe; Because the exhausting smoke pipe of fluting and locked groove is independently; Therefore do not disturb mutually, thereby guaranteed the normal collection of flue gas, and reduced energy consumption.But present two smoke pipes of doing normally will collect smoke box and be divided into several sections, and wherein a part is collected in the smoke exhaust pipe with horizontal flue and (is used to collect locked groove cigarette amount), and end portion is with another root smoke pipe single collection (being used for collecting fluting cigarette amount); Thus; With regard to the artificial horizontal flue that is provided with, the existence of this kind horizontal flue has brought hidden danger can for the flue buildup in the electrolyzer; Even the obstruction flue, be unfavorable for the electrolysis ordinary production.

Summary of the invention

The technical problem that the utility model will solve is: a kind of pair of smoke pipe smoke collecting device is provided; This device can satisfy " energy-saving and emission-reduction " requirement effectively, causes fluting and locked groove operating mode not have effectively to separate and brings the exhausting deficiency or exhausting is excessive, the horizontal flue buildup of two smoke pipes is brought hidden danger even deficiency such as obstruction flue to overcome single smoke pipe that prior art exists.

The utility model adopts following technical scheme: upper smoke tube links to each other with collection smoke box one end, and lower smoke tube links to each other with the external end head of collection smoke box one end, in the collection mouth end of collection smoke box one group of water conservancy diversion steel plate is set.

The utility model improves electrolyzer traditional single smoke pipe collection smoke box and two smoke pipe collection smoke box exhausting system; External end head at traditional single smoke pipe collection smoke box one end is provided with a suction opening, and the cigarette amount when being used to collect the electrolyzer fluting is not arranged in the collection smoke box because this collects mouth; Therefore can not cause on the collection smoke box and have horizontal flue; Therefore stopped that horizontal flue exists and the buildup problem that causes, thereby guaranteed the normal collection of electrolysis flue gas, reduced energy consumption.

Range of application: the design of this utility model can be used on the electrolyzer of differing capacities as collecting flue gas.

Description of drawings

Fig. 1 is single smoke pipe collection smoke box structural representation of prior art;

Fig. 2 is two smoke pipe collection smoke box structural representations of prior art;

Fig. 3 is the structural representation of the utility model.

Embodiment

The embodiment of the utility model: upper smoke tube (3) links to each other with collection smoke box 1 one ends, and lower smoke tube 4 links to each other with the external end head of collection smoke box 1 one ends, in the collection mouth end of collection smoke box 1 one group of water conservancy diversion steel plate 2 is set.

Upper smoke tube 3 links to each other the flue gas when being used to collect the electrolyzer locked groove with collection smoke box 1 one ends.

Lower smoke tube 4 links to each other with the external end head of collection smoke box 1 one ends, the flue gas when being used to collect the electrolyzer fluting.

Collection mouth end at collection smoke box 1 is provided with water conservancy diversion steel plate 2, to guarantee that flue gas can get in the lower smoke tube 4 effectively.

The structure formation of collection smoke box 1, the quantity of water conservancy diversion steel plate 2 and scantlings of the structure, the diameter of upper smoke tube 3, lower smoke tube 4 and location dimension etc. all can be adjusted as the case may be.

Claims

1. two smoke pipe smoke collecting device, it is characterized in that: upper smoke tube (3) links to each other with collection smoke box (1) one end, and lower smoke tube (4) links to each other with the external end head that collects smoke box (1) one end, in the collection mouth end that collects smoke box (1) one group of water conservancy diversion steel plate (2) is set.