CN103666499A - Moving type intermittent off-line dust cleaning system process for table or top of coke oven - Google Patents

Abstract

The invention belongs to the technical field of environment-friendly dusting cleaning in coke oven industrial, and discloses a moving type intermittent off-line dust cleaning system process for a table or a top of a coke oven. The dust cleaning system comprises a cleaning head, a pipeline, a cloth-bag dust collector, a pulse valve, a scraper machine, a dust accumulation funnel, a fan, a silencer, an exhaust cylinder and the like which can be both lifted and moved. The whole system needs no special guard, the purpose that accumulated dust on the oven table or the oven top can be automatically cleaned along with the movement of a coke pushing machine, a coke baffle machine or a charging car is automatically achieved through PLC (Programmable Logic Controller) of a master control room, the collected dust is fed into the dust collecting funnel at the part which is 3.5-4.5 high through the scraper machine, and meanwhile the dust is cleaned in an intermittent off-line mode and automatically conveyed through the scraper machine, so that the power and the energy are saved, the fault rate is low, the dust cleaning effect is good, the problems that the coke oven table or oven top is severe in working environment and the manual cleaning is not convenient to achieve are solved, and the dust cleaning efficiency can be 99.9%.

Description

Portable intermittently off-line ash-clearing dust-removal system technique for coke oven table or furnace roof

Invention field

The invention belongs to coke oven industry Environmental-protecting dust-removing technical field, be particularly suitable for coke oven table or the furnace roof cleaning dust-removing system technique of steel industry.

Background technology

Domestic about coke oven table or furnace roof cleaning dust-removing system, be to have introduced Japanese improvement technology in 6 meters of coke ovens of upper century the eighties the earliest, its principal feature is: the dedusting method of the continuous online ash removal of packaged type.The deashing of this system leans on the work of pulse control instrument setting pulse valve to complete completely, system is from obtaining electric work, pulse control instrument is just controlled the non-stop run again and again of each pulse valve by the fixed routine of oneself automatically one by one, this mode of operation wastes energy on the one hand, on the other hand no matter dust stratification is how many on cloth bag, having taken turns to will be clear, and such purge mode effect is bad; Because the technical price of introducing is expensive, just start to realize the production domesticization of foreign technology, but effect is always all bad again, be mainly manifested in process system can not collect well through the dust on road surface, just do not reach the object of dedusting yet.

Summary of the invention

Defect based on prior art and deficiency, the invention provides a kind of reduced investment, power consumption less, the effective packaged type for coke oven table or furnace roof off-line ash-clearing dust-removal system technique intermittently.

Main points of the present invention are as follows: a kind of portable intermittently off-line ash-clearing dust-removal system technique for coke oven table or furnace roof, dust-removal system comprises not only liftable but also movably cleaning head, pipeline, sack cleaner, pulse valve, scrapper conveyor, ash bucket, blower fan, sourdine, aiutage etc., it is characterized in that comprising the following steps:

(1) when pushing machine, coke guide or the coal charger of coke oven start to move, the cleaning head of this dust-removal system is fallen on road surface to be moved thereupon, and while blower fan obtains electric, the generation negative pressure of starting working;

(2) under dedusting fan suction function, cleaning head through the dust on road surface, be inhaled into, and arrive sack cleaner through pipeline, at this, filter;

(3) dust is after filtering held back by cloth bag the ash bucket that falls into sack cleaner bottom and is temporarily stored, and uncontaminated air rises to sack cleaner outlet conduit through cloth bag, and through blower fan, sourdine, aiutage qualified discharge;

(4) when the pushing machine of coke oven, coke guide or coal charger move to stokehold, halt, cleaning head is lifted and leaves road surface, dust-removal system blower fan quits work, pulse valve obtains electric and cloth bag is carried out to intermittent type pulse jet, and the dust being accumulated on cloth bag is shaken off to be deposited in the ash bucket of fly-ash separator bottom;

(5) fly-ash separator bottom unloading valve is opened, automatic ash-discharging, and dust falls into scrapper conveyor and is promoted to the ash bucket of 3.5-4.5 rice eminence and is collected.

The feature of technique of the present invention is: whole system is kept an eye on without special messenger, PLC by Master Control Room just can realize with the movement of pushing machine, coke guide or coal charger the control of dust on table that automatic cleaning passes through or furnace roof road surface automatically, and by scrapper conveyor, collected dust is sent in the flue-dust retainer of 3.5-4.5 rice eminence and collected, off-line pulse dust cleaning adopt scrapper conveyor automatic transport dust simultaneously intermittently, be power and energy saving, failure rate is low, ash-removal effect are good again, it has solved coke oven table or furnace roof operating environment is severe, hand sweeping is inconvenient problem.Its efficiency of dust collection reaches 99.9%.

Accompanying drawing explanation:

Fig. 1 is the process flow sheet of control of dust process in the present invention.

Fig. 2 is the process flow sheet of deashing process in the present invention.

Embodiment:

The present invention is a kind of portable intermittently off-line ash-clearing dust-removal system technique for coke oven table or furnace roof, dust-removal system comprises not only liftable but also movably cleaning head, pipeline, sack cleaner, pulse valve, scrapper conveyor, ash bucket, blower fan, sourdine, aiutage etc., and specific embodiment is as follows:

When pushing machine, coke guide or the coal charger of coke oven start to move, the cleaning head of dust-removal system is fallen on road surface to be moved forward thereupon, and under the effect of dedusting fan negative pressure, cleaning head through the dust on road surface, be inhaled into, through pipeline, from the middle and lower part of sack cleaner, enter sack cleaner, at this, filter, dust is after filtering held back by cloth bag the ash bucket that falls into fly-ash separator bottom and is temporarily stored, uncontaminated air sees through cloth bag and rises to fly-ash separator outlet conduit, and through blower fan, sourdine, aiutage qualified discharge.

When moving to stokehold, pushing machine, coke guide or the coal charger of coke oven halt, cleaning head is lifted and leaves road surface, dust-removal system blower fan quits work, pulse valve obtains electric and cloth bag is carried out to intermittent type pulse jet, the dust moment being accumulated on cloth bag is shaken off and is deposited in the ash bucket of fly-ash separator bottom, simultaneously dust discharging valve of duster is opened, automatic ash-discharging, and dust falls into scrapper conveyor and is promoted to the ash bucket of about 3.5-4.5 rice rice eminence and is collected.

Often completing once above-mentioned all programs is one-period, the cleaning task that then whole system will have been gone round and begun again one by one within the working hour.

Claims (1)

1. the portable intermittently off-line ash-clearing dust-removal system technique for coke oven table or furnace roof, dust-removal system comprises not only liftable but also movably cleaning head, pipeline, sack cleaner, pulse valve, scrapper conveyor, ash bucket, blower fan, sourdine, aiutage etc., it is characterized in that comprising the following steps:

(1) when pushing machine, coke guide or the coal charger of coke oven start to move, the cleaning head of this dust-removal system is fallen on road surface to be moved thereupon, and while blower fan obtains electric, the generation negative pressure of starting working;

(2) under dedusting fan suction function, cleaning head through the dust on road surface, be inhaled into, and arrive sack cleaner through pipeline, at this, filter;

(3) dust is after filtering held back by cloth bag the ash bucket that falls into sack cleaner bottom and is temporarily stored, and uncontaminated air rises to sack cleaner outlet conduit through cloth bag, and through blower fan, sourdine, aiutage qualified discharge;

(4) when the pushing machine of coke oven, coke guide or coal charger move to stokehold, halt, cleaning head is lifted and leaves road surface, dust-removal system blower fan quits work, pulse valve obtains electric and cloth bag is carried out to intermittent type pulse jet, and the dust being accumulated on cloth bag is shaken off to be deposited in the ash bucket of fly-ash separator bottom;

(5) fly-ash separator bottom unloading valve is opened, automatic ash-discharging, and dust falls into scrapper conveyor and is promoted to the ash bucket of 3.5-4.5 rice eminence and is collected.

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