CN203304075U

CN203304075U - Ash discharging device of sintering main electric precipitator

Info

Publication number: CN203304075U
Application number: CN201320306675XU
Authority: CN
Inventors: 叶学农; 江贻海; 刘付志
Original assignee: Huatian Engineering and Technology Corp MCC
Current assignee: Huatian Engineering and Technology Corp MCC
Priority date: 2013-05-30
Filing date: 2013-05-30
Publication date: 2013-11-27
Anticipated expiration: 2023-05-30

Abstract

The utility model discloses an ash discharging device of a sintering main electric precipitator. The ash discharging device at least comprises a plurality of ash hoppers provided with dual-layer ash discharging valves at outlets under a plurality of electric fields, wherein an embedded scraper transporter is arranged below the ash hopper under each electric field, and an ash conveying bin pump is arranged at one end of each embedded scraper transporter. The ash discharging device is capable of effectively preventing dust from condensing to cause that an ash storage bin and a pipeline are blocked. After the dust is discharged from the ash hoppers of a dust collector, the dust is conveyed to the small bin pump by the scraper transporter, and conveyed to a destination by using a pneumatic force. The dust is short in dwell time during the period, the temperature decreasing amplitude is small, and condensing of the dust can be effectively prevented.

Description

Sintering master electric cleaner ash exhauster

Technical field

The utility model relates to the sintering master electric cleaner ash exhauster of a kind of discharge for Ferrous Metallurgy sintering production process sintering master electric cleaner flue-dust retainer dust, conveying, outward transport processing.

Background technology

The smoke characteristic produced in sintering production process is high humidity (water content by volume approximately 10%), temperature high (120～150 ℃), in the dust of collecting, contain the viscosity such as large quantities of lime, the quick lime material that greatly, easily lumps, and to alkali metal oxides such as the harmful potassium of ironmaking production, sodium.The dust that sintering master electric cleaner is collected also has certain temperature, in the recycling process, requires to accomplish not dewfall of dust as far as possible, is easy to strength and carries, and the dust of simultaneously the higher rear two-stage electric field of alkali metal containing being collected is easy to separating treatment.

Usually the main electric cleaner ash method adopted is (illustrated in figures 1 and 2), the dust of collecting in dust collector ash hopper 1 is unloaded to the embedded scraper transporter 3 be positioned under electric field at the same level by Double-deck cinder discharge valve 2, be generally the level Four electric field, every grade of electric field is divided into an embedded scraper transporter.Under electric fields at different levels, embedded scraper transporter comes together in a total embedded scraper transporter 4 by dust, then is delivered to dust warehouse 6 via a bucket elevator 5, under the dust warehouse, fills a relatively large defeated ash silo pump 7 the dust pneumatic transporting is delivered to the recycling of sintered material chamber.For reducing airborne dust, at dust warehouse top, top, storehouse dust-precipitator 8 also is housed.

The shortcoming of tradition ash method: a, have higher than the temperature more than dew point from the dust of collecting high temperature, high-humidity gas fume, be full of high humidity gas therebetween, dust carry and the warehouse storage process in can be because temperature descends dewfall, the stickums such as the lime in dust can produce caking and make the warehouse obstruction; The dust neutral and alkali tenor difference that b, electric field not at the same level are collected is larger, concentrates the mode of carrying not carry out the Selective Separation processing to dust; C, equipment transhipment link is more, and except the investment height, it is all unfavorable that system job rate and reentrainment of dust are controlled.

The utility model content

For the problems referred to above, the purpose of this utility model is to provide a kind of sintering master electric cleaner ash exhauster.

For achieving the above object, a kind of sintering master electric cleaner ash exhauster described in the utility model, at least comprise that a plurality of ash buckets that are provided with Double-deck cinder discharge valve in exit that are placed under each electric field form, below the ash bucket under each electric field, be provided with embedded scraper transporter, at an end of each embedded scraper transporter, defeated ash silo pump be set.

Preferably, described electric field is four.

The beneficial effects of the utility model are:

1, be at first can effectively prevent the dust dewfall and cause ash-storing bin and line clogging.After dust Self-duster ash bucket is discharged, directly, by the small-sized storehouse of drag conveyor input pump, and then with pneumatic transporting, deliver to destination.The dust residence time is short during this time, and the temperature range of decrease is little, effectively Antidewing.

2,, because dust does not collect before the storehouse pump is carried, therefore can according to the alkali metal content of same electric field collection dust not, dust be processed respectively.

3, flow process is relatively simple, and number of devices and transhipment link are less, therefore can reduce investment outlay, improve operating rate, improve environment.

The accompanying drawing explanation

Fig. 1 is the structural representation of the sintering master electric cleaner ash exhauster of prior art;

Fig. 2 is the side view of Fig. 1;

Fig. 3 is the structural representation of the described sintering master of the utility model embodiment electric cleaner ash exhauster;

Fig. 4 is the side view of Fig. 3.

The specific embodiment

Below in conjunction with Figure of description, the utility model is further described.

As shown in Figure 3 and Figure 4, the described a kind of sintering master electric cleaner ash exhauster of the utility model embodiment, at least comprise that a plurality of ash buckets 9 that are provided with Double-deck cinder discharge valve 10 in exit that are placed under each electric field (being generally four) form, below the ash bucket under each electric field, be provided with embedded scraper transporter 11, at an end of each embedded scraper transporter, defeated ash silo pump 12 be set.

The course of work of the present utility model is:

The dust of not collecting in ash bucket under same electric field unloads to the embedded scraper transporter be positioned under electric field at the same level by Double-deck cinder discharge valve, more directly sends into each self-corresponding small-sized defeated ash silo pump by this embedded scraper transporter.According to same electric field not, collect the alkali metal content situation of dust, the dust of each storehouse pump output can all come together in a house steward and be delivered to the sintered material chamber and recycle, and also can separately switch and be delivered to different destinations.

The key point of this programme is to shorten to collect the residence time of dust in induction system, thereby reduces the possibility that reduces the dewfall bonding because of the dust temperature; Make that simultaneously the dust that each electric field is collected is carried out to separating treatment and become possibility.

With traditional concentrated ash-storing bin mode of movement that comes together in, compare, adopt the utility model ash conveying device to have following obvious advantage:

(1) be at first can effectively prevent the dust dewfall and cause ash-storing bin and line clogging.After dust Self-duster ash bucket is discharged, directly, by the small-sized storehouse of drag conveyor input pump, and then with pneumatic transporting, deliver to destination.The dust residence time is short during this time, and the temperature range of decrease is little, effectively Antidewing.

(2), because dust does not collect before the storehouse pump is carried, therefore can according to the alkali metal content of same electric field collection dust not, dust be processed respectively.

(3) flow process is relatively simple, and number of devices and transhipment link are less, therefore can reduce investment outlay, improve operating rate, improve environment.

Above; it is only preferred embodiment of the present utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claim was defined.

Claims

1. sintering master electric cleaner ash exhauster, it is characterized in that, at least comprise that a plurality of ash buckets that are provided with Double-deck cinder discharge valve in exit that are placed under each electric field form, below the ash bucket under each electric field, be provided with embedded scraper transporter, at an end of each embedded scraper transporter, defeated ash silo pump be set.

2. sintering master electric cleaner ash exhauster according to claim 1, is characterized in that, described electric field is four.