CN203355681U - Stable sintering sludge addition device - Google Patents

Stable sintering sludge addition device Download PDF

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Publication number
CN203355681U
CN203355681U CN2013204186481U CN201320418648U CN203355681U CN 203355681 U CN203355681 U CN 203355681U CN 2013204186481 U CN2013204186481 U CN 2013204186481U CN 201320418648 U CN201320418648 U CN 201320418648U CN 203355681 U CN203355681 U CN 203355681U
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China
Prior art keywords
mud
pipeline
settling tank
mixer
tank
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN2013204186481U
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Chinese (zh)
Inventor
周静
张义明
范文生
王国华
王静
李宝生
程翠花
饶连海
齐英华
张申
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Hebei Iron and Steel Co Ltd Tangshan Branch
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Hebei Iron and Steel Co Ltd Tangshan Branch
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Priority to CN2013204186481U priority Critical patent/CN203355681U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

Abstract

The utility model relates to a stable sintering sludge addition device and belongs to the technical field of metallurgical dust mud recycling. The stable sintering sludge addition device adopts the following technical scheme: a stirring pump (2) and a slurry pump (3) are mounted on a platform of a slurry stirring pond (1); a filter is arranged at a mud inlet of the slurry pump; an outlet of the slurry pump is connected with a depositing tank (7) through a main mud conveying pipe; the depositing tank is connected with a mixer (12), also connected with the slurry stirring pond through a mud return pipeline (13), and provided with a pressure meter (8), a stop valve (9), an adjustment valve (10) and a mass flow meter (11); and a back flush pipeline (15) and a manual control valve (16) are arranged on a pipeline between the mass flow meter and the mixer. The stable sintering sludge addition device has the advantages and benefits as follows: the converter slurry is effectively utilized, the purpose of environmental protection is achieved, and effective ingredients of sintered materials are increased; and meanwhile, due to automatic control, the sludge addition technology is continuously and stably used, the sludge addition amount is greatly increased, and the sintering ore cost is greatly reduced.

Description

A kind of stable sintering is with addition of device of sludge
Technical field
The utility model relates to a kind of stable sintering with addition of device of sludge, belongs to metallurgical dust mud reutilization technology field.
Background technology
In the smelting iron and steel sintering system, sometimes, when batch mixing, with addition of metallurgical dust mud, be called mud, to reach the purpose of energy-conserving and environment-protective.But, because of large, the easy precipitation of mud viscosity, impurity is more, and pipeline, valve, shower nozzle clogging easily occur, and is difficult to uniform and stable with addition of mud; SINTERING PRODUCTION there are certain requirements moisture simultaneously, especially carries sludge density to change greatly, adds the adjustment of mud amount not in time, often causes the SINTERING PRODUCTION fluctuation.
The utility model content
The utility model purpose is to provide a kind of stable sintering with addition of device of sludge, uniform and stable with addition of mud, prevents that mud conveying pipeline from stopping up, and the metallurgical dust mud that makes to make steel is farthest recycled, and solves the problems referred to above that exist in background technology.
The technical scheme of utility model is: a kind of stable sintering, with addition of device of sludge, comprises slip agitating tank, mixing pump, slush pump, mixer, filter, settling tank; Mixing pump and slush pump are installed on the platform of slip agitating tank; The mud inlet of slush pump is provided with filter, and the mud delivery side of pump connects settling tank by defeated mud main pipeline; Settling tank connects mixer, and settling tank passes through back the mud pipeline and connects slip agitating tank, and settling tank arranges Pressure gauge, stop valve, control valve, mass flowmenter; Described defeated mud main pipeline caliber after settling tank diminishes, and by settling tank, through Pressure gauge, stop valve, control valve, mass flowmenter, enters mixer; Pipeline between described mass flowmenter and mixer is provided with backwash pipeline and manual control valve, utilizes strong brine regularly defeated mud main pipeline to be cleaned, and avoids line clogging; After defeated mud main pipeline enters mixer, caliber diminishes again, and compressed air piping is installed side by side, on defeated mud main pipeline, nozzle is installed, jet expansion is provided with fan-shaped reflecting plate, mud by after nozzle ejection to reflecting plate, the 0.06MPa compressed air of compressed air duct dispels and is vaporific, thereby realizes that fixed point evenly adds mud.
Each three, mixing pump, slush pump is installed on the platform of described slip agitating tank, and rounded interval is evenly distributed on the platform of slip agitating tank.
Be connected with on pipeline between described defeated mud main pipeline and settling tank for the digestion of batching lime and add the mud pipeline.
Described mud enters slip agitating tank by two for the mud pipeline, if concentration of hydraulic mixture is larger, is added industrial water in factory by the moisturizing pipeline that is located at the slip agitating tank side and is diluted, and avoids blocking mud pump and each pipeline, valve.
Described three slush pump mud inlets, pipe diameter ¢ 80mm, respectively by after filter and by-pass valve control, be connected with the defeated mud main pipeline of diameter ¢ 150mm; Described filter is the cage modle impurity removing apparatus, and filter is a tubular funnel device, and the tubular middle is provided with the dividing plate with circular hole, impurity screening, and bottom is funnel-form, and impurity is discharged;
Described defeated mud main pipeline caliber after settling tank becomes diameter ¢ 80mm, enter mixer after caliber become diameter ¢ 40mm.
The bottom of described settling tank is the cone pipeline, and by-pass valve control is installed, regularly impurity in the scavenger precipitation tank.
The mud pipeline that returns that described settling tank top is equipped with diameter ¢ 80mm is back to slip agitating tank through stop valve; Return the mud pipe break valve and often open, keep in pipeline having mud to reflux always, both can prevent line clogging, can adjust defeated mud main pipeline pressure by returning the mud pipeline again.
After described defeated mud main pipeline enters mixer, two finedraw rectangular nozzles are installed on defeated mud main pipeline.
Described slip agitating tank is circular stirring pool; The main shaft of mixing pump is divided into two and is stirred flabellum; By-pass valve control on the slush pump mud inlet, clean defeated mud main pipeline for recoiling; The slurry transportation main pipeline reaches back on the mud pipeline and lays valve, to realize that between the different pump housings, conversion is used and pipeline cleaning.Slip agitating tank arranges sludge-tank liquid level, pressure, density alarming device.
Use the utility model, after the mud in slip agitating tank stirs by mixing pump, mud enters slush pump after filtering by filter, by defeated mud main pipeline, is transported to settling tank; After the settling tank precipitation, be transported to mixer, in mixer, defeated mud main pipeline is equipped with compressed air piping side by side, on defeated mud main pipeline, nozzle is installed, jet expansion is provided with fan-shaped reflecting plate, mud by after nozzle ejection to reflecting plate, the 0.06MPa compressed air of compressed air duct dispels and is vaporific, thereby realizes that fixed point evenly adds mud; The mud of settling tank precipitation returns to slip agitating tank by returning the mud pipeline; Mixer is provided with backwash pipeline and manual control valve, utilizes strong brine regularly defeated mud main pipeline to be cleaned, and avoids line clogging.
Described mud is converter mud.
The utility model principle: according to the sintering process requirement, the compound moisture content that participates in sintering is 7 ± 0.2%, and raw material is containing Natural Water approximately 3%, therefore need to mix into 4% supplementing water and mix one; After utilizing converter mud, the moisture in mud can replace the supplementing water in the batch mixing process, and mud, directly as raw materials for sintering, participates in SINTERING PRODUCTION.The revolving furnace mud pulp grade is 2 a little less than its basicity of iron fine powder, the CaO that it is contained and SiO 2as adding flux, not only can significantly improve ballability, and can make sintering deposit possess the desired slag composition of blast furnace process and the quantity of slag, especially can improve the character of sintering deposit, thereby improve productivity of sinter; The C contained in mud, in sintering process, can be rekindled again, has reduced to a certain extent energy resource consumption.
The utility model advantage and effect: effectively utilized converter mud, reached the environmental protection purpose, improved the effective ingredient of sintering feed; Automatically control mud is used continually and steadily with addition of technology simultaneously, mud significantly gets a promotion with addition of amount, greatly reduces the sintering deposit cost.
The accompanying drawing explanation
Fig. 1 is the utility model embodiment schematic diagram;
In figure: 1, slip agitating tank; 2, mixing pump; 3, slush pump; 4, filter; 5, by-pass valve control; 6, defeated mud main pipeline; 7, settling tank; 8, Pressure gauge; 9, stop valve; 10, control valve; 11, mass flowmenter; 12, mixer; 13, return the mud pipeline; 14, stop valve; 15, backwash pipeline; 16, manual control valve; 17, compressed air piping; 18, nozzle; 19, reflecting plate; 20, lime digestion adds the mud pipeline; 21, for the mud pipeline; 22, moisturizing pipeline.
The specific embodiment
By the following examples the utility model is described further.
A kind of stable sintering, with addition of device of sludge, comprises slip agitating tank, mixing pump, slush pump, mixer, filter, settling tank; Mixing pump 2 and slush pump 3 are installed on the platform of slip agitating tank 1; The mud inlet of slush pump is provided with filter 4 and by-pass valve control 5, and the mud delivery side of pump connects settling tank 7 by defeated mud main pipeline 6; Settling tank connects mixer 12, and settling tank passes through back mud pipeline 13 and connects slip agitating tank, and settling tank arranges Pressure gauge 8, stop valve 9, control valve 10, mass flowmenter 11; Described defeated mud main pipeline caliber after settling tank diminishes, and by settling tank, through Pressure gauge 8, stop valve 9, control valve 10, mass flowmenter 11, enters mixer; Pipeline between described mass flowmenter and mixer is provided with backwash pipeline 15 and manual control valve 16; After defeated mud main pipeline 6 enters mixer, caliber diminishes again, and compressed air piping 17 is installed side by side, on defeated mud main pipeline, nozzle 18 is installed, and jet expansion is provided with fan-shaped reflecting plate 19.
Respectively three, mixing pump 2, slush pump 3 is installed on the platform of described slip agitating tank 1, and rounded interval is evenly distributed on the platform of slip agitating tank.
The lime digestion be connected with on pipeline between described defeated mud main pipeline 6 and settling tank 7 for batching adds mud pipeline 20.
Described mud enters slip agitating tank 1 by two for mud pipeline 21, if concentration of hydraulic mixture is larger, is added industrial water in factory by the moisturizing pipeline 22 that is located at the slip agitating tank side and is diluted, and avoids blocking mud pump and each pipeline, valve.
Described three slush pump mud inlets, pipe diameter ¢ 80mm, respectively by after filter and by-pass valve control 5, be connected with the defeated mud main pipeline of diameter ¢ 150mm; Described filter is the cage modle impurity removing apparatus, and filter is a tubular funnel device, and the tubular middle is provided with the dividing plate with circular hole, impurity screening, and bottom is funnel-form, and impurity is discharged;
Described defeated mud main pipeline caliber after settling tank becomes diameter ¢ 80mm, enter mixer after caliber become diameter ¢ 40mm.
The bottom of described settling tank is the cone pipeline, and by-pass valve control is installed, regularly impurity in the scavenger precipitation tank.
The mud pipeline that returns that described settling tank top is equipped with diameter ¢ 80mm is back to slip agitating tank through stop valve 14; Return the mud pipe break valve and often open, keep in pipeline having mud to reflux always, both can prevent line clogging, can adjust defeated mud main pipeline 6 pressure by returning the mud pipeline again.
After described defeated mud main pipeline enters mixer, two finedraw rectangular nozzles are installed on defeated mud main pipeline.
Described slip agitating tank is circular stirring pool; The main shaft of mixing pump is divided into two and is stirred flabellum; By-pass valve control on the slush pump mud inlet, clean defeated mud main pipeline for recoiling; The slurry transportation main pipeline reaches back on the mud pipeline and lays valve, to realize that between the different pump housings, conversion is used and pipeline cleaning.Slip agitating tank arranges sludge-tank liquid level, pressure, density alarming device.
The utility model course of work: after the mud in slip agitating tank stirs by mixing pump, mud enters slush pump after filtering by filter, by defeated mud main pipeline, is transported to settling tank; After the settling tank precipitation, be transported to mixer, in mixer, defeated mud main pipeline is equipped with compressed air piping 17 side by side, on defeated mud main pipeline, nozzle 18 is installed, jet expansion is provided with fan-shaped reflecting plate 19, mud by after nozzle ejection to reflecting plate, the 0.06MPa compressed air of compressed air duct dispels and is vaporific, thereby realizes that fixed point evenly adds mud; The mud of settling tank precipitation returns to slip agitating tank by returning the mud pipeline; Mixer is provided with backwash pipeline 15 and manual control valve 16, utilizes strong brine regularly defeated mud main pipeline 6 to be cleaned, and avoids line clogging.
With addition of mud the time, detect in real time mud discharge, each pipeline pressure, guarantee the moisture stabilization of compound; Because sludge density changes greatly, by the moisturizing pipeline that is located at slip agitating tank, carry out the moisturizing adjusting.
The described mud of the present embodiment is converter mud.
With reference to accompanying drawing, embodiment more specifically:
Two of converter mud origin ultromotivity factory are delivered to slip agitating tank for the mud pipeline, and concentration of hydraulic mixture is controlled at 16%-22%.For the line clogging of avoiding concentration of hydraulic mixture to cause more greatly, supplement industrial water in factory by the moisturizing pipeline mud is diluted, meet normal need of production.
8 meters of slip agitating tank diameters, dark 3 meters, wherein under ground portion is 2.8 meters, and 0.2 meter of aerial part, above build canopy, and while normally using, the mud pit liquid level remains on 1.8-2.2 rice, during lower than 1.8 meters, wants mud, per tour to want the mud number of times to be no less than 2 times; 360m 2
Sintering machine approximately can utilize mud amount for 150t every day.
On the slip agitating tank platform, configuration device comprises 3, slush pump, model 50YZ36-50, and power N=22KW/ platform, open two standby one; 3 of mixing pumps, model Y160L-4, power N=15KW/ platform, standard-sized sheet.400 tons/day of this system slurry conveyed abilities.During normal production, utilize slush pump (opening two standby) that mud is delivered to mixer by defeated mud main pipeline and sprayed, add fixed filter and mix clearly before the slush pump entrance.For preventing precipitating in slip agitating tank, three mixing pumps keep running for a long time.
Control required mud discharge by mass flowmenter, control valve, stop valve and Pressure gauge; The nozzle of mixer adopts the finedraw rectangular nozzle, and sets up fan-shaped reflecting plate, utilizes the compressed air that pressure is 0.6MPa that the mud of ejection is dispelled, and reaches the even spray process requirement of site-directed quantitative.
Be provided with a settling tank removal of impurities at defeated mud main pipeline with going back to mud pipeline junction, weekly impurity in the periodic cleaning tank; Defeated mud main pipeline enters the settling tank bottom, returns the mud pipeline and is located at settling tank top; For stablizing pipeline pressure, prevent that in sludge pipe, deposition hardens, slip agitating tank returns the certain spillway discharge of the long-term maintenance of mud pipeline.
For avoiding stopping up mass flowmenter, control valve, stop valve, utilize strong brine according in the opposite direction mass flowmenter, control valve, stop valve being cleaned with sludge stream, weekly.
Being delivered to proportioning room, to add mud pipeline conveying principle for the lime digestion of lime digestion the same.

Claims (4)

1. a stable sintering, with addition of device of sludge, is characterized in that: comprise slip agitating tank, mixing pump, slush pump, mixer, filter, settling tank; Mixing pump (2) and slush pump (3) are installed on the platform of slip agitating tank (1); The mud inlet of slush pump is provided with filter (4), and the mud delivery side of pump connects settling tank (7) by defeated mud main pipeline (6); Settling tank connects mixer (12), and settling tank passes through back mud pipeline (13) and connects slip agitating tank, and settling tank arranges Pressure gauge (8), stop valve (9), control valve (10), mass flowmenter (11); Described defeated mud main pipeline caliber after settling tank diminishes, and by settling tank, through Pressure gauge, stop valve, control valve, mass flowmenter, enters mixer; Pipeline between described mass flowmenter and mixer is provided with backwash pipeline (15) and manual control valve (16); After defeated mud main pipeline enters mixer, caliber diminishes again, and side by side compressed air piping is installed (17), and nozzle (18) is installed on defeated mud main pipeline, and jet expansion is provided with fan-shaped reflecting plate (19).
2. a kind of stable sintering according to claim 1, with addition of device of sludge, is characterized in that: each three, mixing pump, slush pump is installed on the platform of described slip agitating tank, and rounded interval is evenly distributed on the platform of slip agitating tank; Described filter is the cage modle impurity removing apparatus, and filter is a tubular funnel device, and the tubular middle is provided with the dividing plate with circular hole, and bottom is funnel-form.
3. a kind of stable sintering according to claim 1 and 2, with addition of device of sludge, is characterized in that: the lime digestion be connected with on pipeline between described defeated mud main pipeline (6) and settling tank (7) for batching adds mud pipeline (20).
4. a kind of stable sintering according to claim 2, with addition of device of sludge, is characterized in that: described defeated mud main pipeline caliber after settling tank becomes diameter 80mm, enter mixer after caliber become diameter 40mm; The bottom of described settling tank is the cone pipeline, and by-pass valve control is installed.
CN2013204186481U 2013-07-15 2013-07-15 Stable sintering sludge addition device Withdrawn - After Issue CN203355681U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013204186481U CN203355681U (en) 2013-07-15 2013-07-15 Stable sintering sludge addition device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Publication Number Publication Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103418303A (en) * 2013-07-15 2013-12-04 河北钢铁股份有限公司唐山分公司 Device and method for stably adding sludge in sintering

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103418303A (en) * 2013-07-15 2013-12-04 河北钢铁股份有限公司唐山分公司 Device and method for stably adding sludge in sintering
CN103418303B (en) * 2013-07-15 2015-04-01 河北钢铁股份有限公司唐山分公司 Device and method for stably adding sludge in sintering

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AV01 Patent right actively abandoned

Granted publication date: 20131225

Effective date of abandoning: 20150401

RGAV Abandon patent right to avoid regrant