CN201361574Y - Discharging iron-removal conveyor controlled by return powder seal in closed grinding circulation system - Google Patents

Discharging iron-removal conveyor controlled by return powder seal in closed grinding circulation system Download PDF

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Publication number
CN201361574Y
CN201361574Y CNU2009200887518U CN200920088751U CN201361574Y CN 201361574 Y CN201361574 Y CN 201361574Y CN U2009200887518 U CNU2009200887518 U CN U2009200887518U CN 200920088751 U CN200920088751 U CN 200920088751U CN 201361574 Y CN201361574 Y CN 201361574Y
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motor
casing
closed
belt
deironing
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CNU2009200887518U
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韩思进
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Abstract

The utility model relates to a discharging iron-removal conveyor controlled by return powder seal in closed grinding circulation system so that the problems of air leakage, ash leakage, poor seal performance and unstable discharging found in coarse powder discharge part of powder concentrator; the utility model is structurally characterized in that a material level box and an iron remover are mounted on the upper part of a box body, a gate plate is mounted on the lower discharge outlet of the material level box, the gate plate is connected with an electric actuator mounted on the upper part of the box body, the iron remover is arranged on the upper ring belt surface of an annular conveying belt and is mounted on the lower part of an iron removal motor, the motor is arranged on the bracket guide rail on the upper part of the box body, a belt roll and a chain cone are symmetrically mounted on the front and rear surfaces of the left and right ends of the box body up and down, the annular conveying belt is mounted on the belt roll and an annular cleaning chain is mounted on the chain cone, the chain cone is connected with a cleaning chain motor and a speed reducer, the belt roll is connected with a belt motor and a speed reducer, a coarse discharge outlet is arranged on the lower part of the box body; the utility model has small power consumption, small maintenance workload and good iron removal effect, improves product quality and yield, and is environmental protection, energy saving and reduces production cost, and increases economical benefit.

Description

Use back powder sealing control discharging deironing conveying device in the closed-circuit grinding circulatory system
One, technical field
The utility model relates to uses back powder sealing control discharging deironing conveying device in a kind of building materials, non-ferrous metal, chemical industry, electric power, coal, the breeze closed-circuit grinding circulatory system.
Two, background technology
The meal that at present domestic and international closed-circuit grinding circulatory system powder concentrator comes out at first passes through gravity dumping device (or style wheel discharger), vertical pipe tramp iron separator, pass through conveying equipment (FU machine for zipper again, the scraper plate machine, chain mat machine, conveying worm, air conveyer flume, chute) deliver to bistrique, grinding circulates.These several equipment make grinding closed circuit circulatory system powder concentrator grinding efficiency low, and the sealing of meal discharger is bad, and the tramp iron separator deironing is few, conveying equipment power consumption height, and maintenance capacity is big, and in light of this situation, network analysis is as follows:
1), closed-circuit grinding system
A: in the closed-circuit grinding system, powder concentrator is because its device for discharging can not seal discharging (as: gravity dumping or the discharging of style wheel etc.) continuously, cause in the powder concentrator separating chamber airflow pressure to change and all have during discharging periodically leaking out, leak grey, dust raising phenomenon, grinding efficiency is low, current of electric changes greatly, and mechanical life is short, product quality is unstable.
B: the used tramp iron separator of existing grinding closed circuit circulatory system (for example pipeline type permanent magnetism and electric magnetic iron remover, mill tail wind cleaning ironware etc.) be mounted in vertical pipe and have on the pipeline of wide-angle, the deironing of flowing automatically by material, this mode all can not well be removed iron filings, scum, the iron in the circulatory system, can not eliminate " great waves effect " in the mill, mill efficiency is low, influences the quality of grinding machine product; Specific area reduces more than 10%, grain composition is unreasonable, and particularly the particle below the 30 μ m is lower relatively in manufacture of cement, reduces 5% to 20%, and output reduces by 5% to 15%.
C: the used meal feed back of existing grinding closed-circuit system is carried and is: (1) conveying worm, (2) FU machine for zipper (or machine for zipper of other form, chain transport machine, scraper plate machine etc.), (3) air conveyer flume, (4) pipeline chute.Preceding (1) (2) two kinds of equipment are in service, and equipment attrition is big, the maintenance cost height, and power of motor is big, the power consumption height, and all can't deironing.(3) plant the equipment operating cost, power consumption is low, still can't deironing.(4) plants operating cost with province, but tube wear is serious, and mill tail elevator need be increased in the circulatory system, and this increases elevator power, increases part and is equivalent to air conveyer flume.Though the said equipment uses through a plurality of domestic and international producers, system synthesis power consumption height, serious wear, maintenance capacity is big, also is unfavorable for deironing, causes mill output low.
2) other uses belt feeder and does not have sweeper, (power plant's climbing coal conveyer belts for example all can be used in the not high again place of object temperature of carrying, the zinc of non-ferrous metal system, magnesium, iron and steel raw material feed proportioning system belt conveyor, the mine, the belt conveyor of inorganic non-metallic industries such as the ore of building materials system, coal, clay).Industrial and mining enterprises are stepped further to cleaning to produce, but because the problem that exists on the structure, in the use, both production efficiency was low, and de-ferrous effect is unsatisfactory again, does not guarantee product quality, and its improvement is still the technical problem that must solve.
Three, utility model content
In order to solve above-mentioned deficiency, the purpose of the utility model just provides uses back powder sealing control discharging deironing conveying device in a kind of closed-circuit grinding circulatory system, solved the blanking of powder concentrator meal fully and partly leaked out, leak the problem grey, that sealing is bad, discharging is unstable.
The technical scheme that the utility model solves is, include casing, motor, belt motor and reductor, material level case and tramp iron separator are equipped with in casing top, material level lower box part discharging opening is equipped with flashboard, flashboard links to each other with the YE that is contained in casing top, tramp iron separator places on the annular belt conveyor on the endless belt face, and be contained in the bottom of deironing motor, motor places on the casing upper bracket guide rail, leather belt roller and chain gear wheel are equipped with in the two sides, front and back at two ends, casing left and right sides symmetry up and down, leather belt roller is equipped with annular belt conveyor, the cleaning chain of annular is housed on the chain gear wheel, the chain gear wheel links to each other with cleaning chain motor and reductor, leather belt roller is with the belt motor (leather belt roller that links to each other with reductor, the motor and speed reducer part also can use motorized pulleys to replace, when the high material of delivery temperature, the roll release bearing portions can be installed in the outside of airtight casing), lower box has the coarse fodder discharging opening.
This combination meal conveyer, power consumption is little, maintenance capacity is little, and the tramp iron separator deironing of employing is clean, the system product quality improves, specific area increases, grain composition is reasonable more, composite material incorporation height, and output increases, environmental protection, energy-conservation, comprehensive production cost reduces, and economic benefit increases.
Four, description of drawings
Fig. 1 is a front view of the present utility model;
Fig. 2 is a vertical view of the present utility model.
Five, the specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is made detailed explanation.
By as can be known shown in Figure 1, the technical scheme that the utility model solves is, include casing, motor, leather belt roller and reductor, material level case 3 and tramp iron separator 6 are equipped with in casing 7 tops, material level lower box part discharging opening is equipped with flashboard 18, flashboard 18 links to each other with the YE 4 that is contained in casing 7 tops, tramp iron separator 6 places on the annular belt conveyor face on the endless belt face, and be contained in the bottom of deironing motor 5, motor 5 places on the casing upper bracket guide rail 20, leather belt roller 17 and chain gear wheel 15 are equipped with in the two sides, front and back at two ends, casing left and right sides symmetry up and down, leather belt roller 17 is equipped with annular belt conveyor 13, and the cleaning chain 12 of annular is housed on the chain gear wheel 15, and the chain gear wheel links to each other with cleaning chain motor and reductor 10, leather belt roller 17 links to each other with reductor 8 with belt motor, and coarse fodder discharging opening 11 is arranged at casing 7 bottoms.
In order to guarantee result of use and easy to maintenance, said casing 7 left and right end portions have manhole 16; Said material level case 3 inside or outside device have level sensor 2, said sensor is that radio frequency admittance sensor, capacitance type sensor, the pressure sensor of weighing, blocking rotary type sensor, radar sensor and r radiation transducers are any, and the pressure size of charging aperture pipe is looked and different in its installation site; LOAD CELLS 19 is equipped with in material level case 3 bottoms; Powder concentrator meal inlet 1 is arranged at material level case 3 tops; There is belt roller 14 on said annular belt conveyor 13 sides; Casing 7 leading flanks at tramp iron separator 6 places have transparent deironing peep hole (also can adopt electronic eyes or other observation forms) 9; Said material level case 3, casing 7 and tramp iron separator 6 constitute hermetically-sealed construction.
It is to be noted:
(1) closed-circuit grinding system meal tremie pipe (or small-sized blanking bin) adopt that sensor detects, material level control (controller has: electronic, pneumatic, servo, PLC, PID, man-machine interface, frequency converter or the meal blanking of other form, PLC, the frequency changer controller that belt is carried).
(2) the closed-circuit grinding system meal is carried and is adopted belt to carry, and the combination transfer equipment that miscellaneous equipments such as machine for zipper (chain transport machine, scraper plate machine) or conveying worm are made clearing apparatus all belongs to this scope.
(3) on the closed-circuit grinding system meal combined type conveyer belt endless belt face tramp iron separator is installed.
(4) other industrial and mining enterprises belt is carried, the carrying roller ash that falls needs hand sweeping, and the unclean place of production environment needs clean production, all can use.
Working condition of the present utility model is, at first powder concentrator is a classifying equipoment, and two class flour extraction pipes are arranged, and a class is the fine powder finished product, and a class is that meal returns powder.Meal powder retrieving pipe road is all in the powder concentrator bottom; Among Fig. 11 accepts the outlet of powder concentrator meal to install; meal enters material level case (3); in the material level case, be provided with material level control sensor (2); through analysis to sensor signal; amplify; conversion process; adopt PID; PLC; man-machine interface is controlled electric operator; YE drives the flashboard (18) under the material level case; material in the flashboard control material level case; blanking; flashboard is installed in and welds in the sealing rubber strip that fixes; round activity freely; if overhaul of the equipments; start at ordinary times; shut down; need close when material need be unstowed and just started shooting all has control, when reaching the material level requirement, is detected by the test section; the control operating part is carried out; begin discharging according to normal operation, can not push down following annular belt conveyor, the endless-belt operation is normal.After material descended on the endless-belt, material travelled forward with the motion of belt, simultaneously by the tramp iron separator deironing, was transported to head, flow to bistrique through discharging opening 11.The width of belt satisfies the system process needs, and the cleaning chain is driven by motor and speed reducer.Sweeper also can be made sweeper with scraper plate machine or other conveying equipment, and there are cleaning hook and cleaning board in the chain both sides, plays the belt grey cleaning effect that falls.Machine for zipper rear chain gear wheel has adjuster to regulate, and plays chain tension operation effect.Tramp iron separator 5 is installed in belt conveyor endless belt top, the distance of sealing and expects about surperficial 5cm, tramp iron separator can be electric magnetic iron remover, permanent-magnetic iron expeller, deironing mode and hang can be arbitrarily, the shape of tramp iron separator 5, magnetic force size, what are different according to feed back, as long as reach the irony material in the thorough removing closed cycle process.
Manhole, peep hole, be convenient to have the personnel of DCS system to patrol and examine, 7,8 is belt feeder and sweeper motor and reductor part, the nonmetallic materials sealing can be used in the outside in tramp iron separator deironing position in seal case, under the situation of the normal operation of system, because of grinding machine is the negative pressure operation, concerning casing, as long as any is arranged leaks out, will be along the diffluence of meal blanking direction, can be to effluxing some dusts, manually or automatically remove the iron that is adsorbed on permanent-magnetic iron expeller or the electric magnetic iron remover no matter be, deironing in the time of can normally moving in system, in the tramp iron separator position, the casing both sides, be provided with glass peephole, can observe and see and adsorbed how much iron, need to remove scum, iron filings; YE detects control by TT﹠C system and carries out.
Tramp iron separator can be contained on any support; The big or small width of leather belt roller is determined by output, the belt quality is by normal temperature and resistant to elevated temperatures, gear wheel (sprocket wheel), chain also can be other forms such as plate chain, casing 7 integral sealings play the system sealing effect, and the meal that comes out from powder concentrator during the utility model work at first enters the material level case, meal flows on the endless-belt again, do not influence the place that blanking and electric operator are carried out when endless-belt is carried, after the tramp iron separator deironing, meal enters the bistrique abrasive dust.
The utility model has solved long-term powder concentrator meal tremie pipe and has not carried out material level control, leaks out, leaks the problem grey, that mechanical wear is fast, grinding efficiency is low, quality is unstable.The single equipment meal is carried, and comprehensive power consumption height, quick abrasion, maintenance capacity are big.The tramp iron separator deironing is unclean.Mill output is low, and composite material mixes few, and specific area is low, and grain composition is unreasonable, and the following particle of 30um is few, tedious problem.
In use, the utility model is that the separation equipment that is contained in the closed-circuit grinding circulatory system returns between powder (or claiming meal) mouth and the milling equipment, therefore, adopts the good effect of this equipment to be:
1, to mineral or semi-product material meal separation equipment;
Owing to when separation equipment normally moves, 2000Pa-7000Pa blast, temperature are arranged in the meal pipeline Between 30 ℃-180 ℃, meal is that wind and material mixing are unloaded, and is mingled with the material grain in the meal, iron filings, and scum, Small ball, little forging, other device for discharging is difficult for sealing, and this equipment has adopted the discharging of material envelope fully, makes thick The main shaft of powder separation equipment is by improving more than 1 year the service life in 3 years-5 years. The vibration equipment amplitude reduces 2%-15%. Circulating fan or motor that air quantity is provided to separation equipment be with voltage 380V, the electricity of power 110Kw The machine running current can reduce 5A to the 40A running current. Finish fineness 50t/h during with platform, circulating load 200% Meter. The finished product that separation equipment is separated (fine powder) tails over lower at the 0.08mm square hole screen with sieve aperture, if control Index tailing over fluctuation to 5%-6%.≤2% the time, also has to 7%-9%. It is more big to tail over more low variation. By In this equipment discharging good seal, if grinding efficiency is original 50%, can bring up to more than 60%. Milling equipment output If 17t/h can improve between the 0.5t/h-3.5t/h. Draught fan impeller, the casing life-span was at 4 years-5 years The basis on, improve more than 1 year.
2, to the conveying equipment of meal
A, power ratio, to carrying same meal, same capacity, same distance, if conveying worm needs 11kw power, the normal operation of this combination transfer equipment needs the 2.2kw motor just much of that, chain transport machine needs the 7.5kw motor,, this equipment needs 2.2kw.Air conveyer flume needs the 4.0kw motor, and this equipment needs the 1.5kw motor.And air conveyer flume also will have deduster, if there is not deduster can influence the normal performance of miscellaneous equipment effect.
B, service life and maintenance are relatively
(1) conveying worm needs once maintenance in 3 months, changes half a year once to hang watt, changes the spiral leaf, can only use 1 year in 1 year one.2), chain transport machine needed repairing once in 6 months, changed chain No. one time in 1 year, can only use 1 year.3), air conveyer flume is carried grader meal down, because of being mingled with irregular material grain in the meal, and iron filings, scum, small ball, little forging, to the air-permeable layer wearing and tearing greatly, temperature (for example to roaster come out the grinding in magnesium ore deposit) between 30 ℃-180 ℃.The best quality guarantee in meal is carried of novel synthetic fibers air-permeable layer gas permeability is 1 year under the normal temperature, and 60 ℃-120 ℃, use half a year at most, 120 ℃-180 ℃ cannot be used.
(2) this equipment keeped in repair once in 1 year, and the normal temperature ore belt used more than 5 years, and the mineral temperature uses high temperature resistant 250 ℃ of belts to carry in the time of 180 ℃, can use more than 3 years.
C, four kinds of equipment deironing are relatively.
Conveying worm, chain transport machine, air conveyer flume carries out deironing with regard to around its equipment itself tramp iron separator being installed all, has only belt structure for conveying of the present utility model to be fit to install tramp iron separator and carries out deironing.
3, tramp iron separator
The industry that existing grinding closed-circuit system pipeline tramp iron separator or gas-solid metallicity material mix and need to separate. permanent magnetism can only deironing 5%-20% ferromagnetic material.Owing in the pipeline gas is arranged; the material solid particle; ferromagnetic material abrasive grit iron filings; need during deironing to shut down; replaced by the tramp iron separator by motor drives rotation control permanent magnetism or electromagnetism gradually, the tramp iron separator after the replacement can only deironing 10%-40%, and can only be several particles of ferromagnetic material; tapping hole must have the negative pressure greater than 150Pa in the equipment normal course of operation, and deironing moves motor continuously and is not less than 1.5Kw.When this equipment normally moves, do not need negative pressure, deironing intermittent duty control motor 0.18kw, no matter the how many kinds of ferromagnetic particle is all removed, deironing reaches more than 96%, make mill hourly output in 15 tons/time, improve 1t/h-3.5t/h, and non-environmental-pollution, energy-saving and environmental protection, economic and social benefit is huge.

Claims (8)

1, uses back powder sealing control discharging deironing conveying device in a kind of closed-circuit grinding circulatory system; Include casing, motor, leather belt roller and reductor, it is characterized in that, material level case (3) and tramp iron separator (6) are equipped with in casing (7) top, material level lower box part discharging opening is equipped with flashboard (18), flashboard (18) links to each other with the YE (4) that is contained in casing (7) top, tramp iron separator (6) places on the annular belt conveyor face on the endless belt face, and be contained in the bottom of deironing motor (5), motor (5) places on the casing upper bracket guide rail (20), leather belt roller (17) and chain gear wheel (15) are equipped with in the two sides, front and back at two ends, casing left and right sides symmetry up and down, leather belt roller (17) is equipped with annular belt conveyor (13), the cleaning chain (12) of annular is housed on the chain gear wheel (15), the chain gear wheel links to each other with motor and reductor (10), leather belt roller (17) links to each other with reductor (8) with belt motor, and coarse fodder discharging opening (11) is arranged at casing (7) bottom.
2, use back powder sealing control discharging deironing conveying device in the closed-circuit grinding circulatory system according to claim 1, it is characterized in that said casing (7) left and right end portions has manhole (16).
3, use back powder sealing control discharging deironing conveying device in the closed-circuit grinding circulatory system according to claim 1, it is characterized in that there is level sensor (2) said material level case (3) inside or outside.
4, use back powder sealing control discharging deironing conveying device in the closed-circuit grinding circulatory system according to claim 1, it is characterized in that LOAD CELLS (19) is equipped with in said material level case (3) bottom.
5, use back powder sealing control discharging deironing conveying device in the closed-circuit grinding circulatory system according to claim 1, it is characterized in that powder concentrator meal inlet (1) is arranged at said material level case (3) top.
6, use back powder sealing control discharging deironing conveying device in the closed-circuit grinding circulatory system according to claim 1, it is characterized in that there is belt roller (14) on said annular belt conveyor (13) side.
7, use back powder sealing control discharging deironing conveying device in the closed-circuit grinding circulatory system according to claim 1, it is characterized in that there is transparent deironing peep hole (9) casing (7) two sides that said tramp iron separator (6) is located.
8, use back powder sealing control discharging deironing conveying device in the closed-circuit grinding circulatory system according to claim 1, it is characterized in that said material level case (3), casing (7) and tramp iron separator (6) constitute hermetically-sealed construction.
CNU2009200887518U 2009-02-27 2009-02-27 Discharging iron-removal conveyor controlled by return powder seal in closed grinding circulation system Expired - Fee Related CN201361574Y (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102001517A (en) * 2010-11-05 2011-04-06 刘素华 Split lengthened energy-saving feeder with long service life
CN102009827A (en) * 2010-11-05 2011-04-13 刘素华 Impact-free interference removal high-precision gravimetric feeder
CN102583039A (en) * 2010-10-27 2012-07-18 刘素华 Leakage-free and blockage-preventing environment-friendly feeder
CN103506205A (en) * 2013-09-30 2014-01-15 丹阳市正大油脂有限公司 Pulverizer impeller feeder
CN103803247A (en) * 2012-11-14 2014-05-21 宜兴市三维电气制造有限公司 Novel side direction assembly and disassembly belt weighing coal feeder
CN108861660A (en) * 2018-05-15 2018-11-23 贵州博宏实业有限责任公司 A kind of used on cement production line frequency control sealing apron feeder
CN111266177A (en) * 2020-02-24 2020-06-12 新乡市中誉鼎力软件科技股份有限公司 Visual identification-based broken stone transmission control system and method for mine exploitation

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102583039A (en) * 2010-10-27 2012-07-18 刘素华 Leakage-free and blockage-preventing environment-friendly feeder
CN102001517A (en) * 2010-11-05 2011-04-06 刘素华 Split lengthened energy-saving feeder with long service life
CN102009827A (en) * 2010-11-05 2011-04-13 刘素华 Impact-free interference removal high-precision gravimetric feeder
CN103803247A (en) * 2012-11-14 2014-05-21 宜兴市三维电气制造有限公司 Novel side direction assembly and disassembly belt weighing coal feeder
CN103506205A (en) * 2013-09-30 2014-01-15 丹阳市正大油脂有限公司 Pulverizer impeller feeder
CN108861660A (en) * 2018-05-15 2018-11-23 贵州博宏实业有限责任公司 A kind of used on cement production line frequency control sealing apron feeder
CN111266177A (en) * 2020-02-24 2020-06-12 新乡市中誉鼎力软件科技股份有限公司 Visual identification-based broken stone transmission control system and method for mine exploitation
CN111266177B (en) * 2020-02-24 2022-03-22 新乡市中誉鼎力软件科技股份有限公司 Visual identification-based broken stone transmission control system and method for mine exploitation

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Granted publication date: 20091216

Termination date: 20130227