Moulded coal is applied to the coal deep processing, domesticly just begins development in the fifties in last century, because at that time specific environment, the moulded coal development is in the state of stagnation always, is blank basically.Just begin just that in the development of moulded coal in recent years certain progress is arranged, but also just be confined to unilaterally, do not have big conduct.Some enterprises at that time to moulded coal processing and utilization be confined to the driving of interests, do not consider environmental protection at all, unilateral pursuit interestsization are not paid attention to the production equipment of moulded coal.The moulded coal rating of machine of early development has: punch forming, extrusion modling, roll forming etc., production technology is coarse, backward in technique, volume is big, complicated operation, yield poorly, production line is subjected to characteristics such as boiler position restriction.The type coal shape of producing as stamping forming molding coal machine is a honeycomb type, and principle is that the rotation of driven by motor belt pulley drives bent axle again, and bent axle drives main shaft transmission back and forth continuously again, and it is exactly honeycomb briquette that coal slime is extruded from the mould of honeycomb shape.The principle of extrusion modling and roll forming is the same substantially, driving belt pulley behind the electric motor starting drives reduction box again speed is lowered, drive a pair of pair of rollers to rotation by shaft coupling again, the ball-shaped or the ellipse that are covered with concavity on the roller, after entering in the middle of the roller, coal slime just rapidly the ball-shaped of concavity or ellipse are filled up, in the pair of rollers moulding of in rotating, joining the two sections of a bridge, etc, on the conveyer belt that drops on the inside that drops out below the roller, send out then, be exactly ball-shaped and disciform moulded coal.Look like fashionable, fancy at that time.But just run into problem in actual applications, the moulded coal volume that resembles honeycomb type is big, can't resemble normal lump coal and deliver on the fire grate through elevator in boiler combustion process, can only cause very big waste by manually submitting, and can only be used for civilian heating.Ball-shaped and ellipse moulded coal also can't reach result of use in actual applications for another example, though shape is little more many than honeycomb briquette, the inadequate phenomenon of burning still occurs in combustion process, can only be applied to smelting.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, thereby provide a kind of cost of investment low, production line is not limited by the boiler position, and environment can significantly change behind the use solid sulphur formed coal, helps environmental protection; Simple to operate, output is high, extruding force is big, can quantity-produced the moulded coal roll type granulator.
According to technical scheme provided by the invention, it mainly adopts motor to be fixed on the base, and the motor main shaft and second shaft coupling adopt first shaft coupling to connect, and first shaft coupling is connected with second shaft coupling; Cover plate is installed on second shaft coupling, and gear wheel and driving shaft are mounted on the lower box middle part, and lower box is connected with base; The top chock fixed main shaft is installed in the upper end of lower box; Middle casing is connected with lower box; Middle casing is installed in the middle of cover and the lower box; The casing upper end was provided with the moulding hole during template was installed on the template; The trident pressure roller is installed on the main shaft; Locking nut is fixed on the main shaft, and pressing plate is pressed on the trident pressure roller, the centre that casing was connected with lower box during main shaft was installed in, first lining is installed in the middle of last cover and middle casing, second lining is installed in the middle of middle casing, is got rid of bin and be fixed on the main shaft, be installed in below the middle casing; Batch mixing pan is fixed on and gets rid of on the bin, and deep groove ball bearing is connected with main shaft, is contained on the top chock; Ball bearing is installed in the top chock lower end, is used for fixing main shaft; Canine tooth wheel seat and main shaft are fixed; Deep groove ball bearing is installed in above the step, is used for fixing main shaft; Thrust ball bearing is installed in below the step, is used for fixing main shaft; Stifle is connected with step.
Compared with the prior art the present invention has the following advantages:
The present invention is simple, compact and reasonable for structure; Cost of investment is low, compares few more than 70% with the boiler smoke wet desulphurization of isodose; Production line is not limited by the boiler position, as long as possess the rainproof condition of transporting, the production site generally links to each other with coal yard; After using solid sulphur formed coal, the auxiliary facility such as the reason facilities such as water film dedusting, shaped Venturi dedusting of boiler can continue to play a role; Production line operation is simple, easy maintenance facility, the operator by short-term cultivation after just energy operation on duty.
Effect of the present invention: environment significantly changes after using solid sulphur formed coal, more than the desulfuration in furnace 50-70%; Just can recoup capital outlay less than one-year age, the solid sulphur formed coal combustion position is significantly better than raw coal combustion, and calorific value can use at the equal of 3500 kilocalories-5500 kilocalorie, and fugitive constituent reaches 18%-30%.The readymade coal granularity is at 10～12mm; Good permeability, sufficient combustion is compared energy-conservation more than 10% with raw coal.In addition, compare its unit packing ratio with raw coal only be about 85% of raw coal to solid sulphur formed coal.Be main body with comminutor when using, designed facilities such as branch screen system, charging system, crushing system, mixing and stirring system supporting, formed the solid sulphur formed coal production line of producing 100000 tons per year, (other accessory systems are constant, and two-shipper can reach 200,000 tons/year).
The specific embodiment
Embodiment during following the present invention incites somebody to action in conjunction with the accompanying drawings is further described:
As shown in Figure 1, comprise base 1, motor 2, first shaft coupling 3, flat key 4, pin 5, cover plate 6, soket head cap screw 7, second shaft coupling 8, spring washer 9, hex bolts 10, driving shaft 11, O shape circle 12, lower box 13, top chock 14, hex bolts 15, spring washer 16, middle casing 17, template 18, trident pressure roller 19, last cover 20, hex bolts 21, locking nut 22, pressing plate 23, main shaft 24, flat key 25, first lining 26, second lining 27, flat key 28, get rid of bin 29, batch mixing pan 30, outside framework oil seal 31, deep groove ball bearing 32, ball bearing 33, flat key 34, gear wheel 35, spring washer 36, hexagonal articulation hole bolt 37, cushion cover 38, deep groove ball bearing 39, thrust ball bearing 40, O shape circle 41, normal type single coil spring lock washer 42, hex bolts 43, stifle 44 and step 45 etc.
The present invention adopts motor 2 to be fixed on the base 1, and base 1 is used to carry motor and main frame; Motor 2 is used for comminutor power initiation and operation.First shaft coupling 3 is used to connect motor 1 main shaft and second shaft coupling 8 joins; Flat key 4 fixed motors, 1 main shaft and first shaft coupling 3; Pin 5 is used for being connected of first shaft coupling 3 and second shaft coupling 8; Cover plate 6 is installed on second shaft coupling 8, adopts soket head cap screw 7 fastening, prevents that pin 5 from deviating from from second shaft coupling 8; Spring washer 9 is used for the bolster of hex bolts between second shaft coupling 8 and spline housing, and spring washer 9 is arranged between second shaft coupling 8 and the spline housing, and fastening with hex bolts 10.Gear wheel 35 is mounted on lower box 13 middle parts with driving shaft 11, and driving shaft 11 connects gear wheel 35 transmission power; O shape circle 12 is arranged between second shaft coupling 8 and the spline housing, seals, and prevents the machinery oil seepage; The housing of lower box 13 protection main frame power is installed in the main frame bottom and is connected with base 1; Top chock 14 is used for fixing the axis body of main frame main shaft and ball bearing, is installed in the upper end of lower box 13; Middle casing 17 adopts hex bolts 15 to be connected with lower box 13; Spring washer 16 is the bolster of middle casing 17 with hex bolts; Middle casing 17 is used for the comminutor discharging, and it is middle with lower box 13 to be installed in cover 20; Template 18 is used for briquette molding, and casing 17 upper ends in being installed in are provided with the moulding hole on the template 18; Trident pressure roller 19 is installed on the main shaft 24; The compacting that is used for coal slime or coal dust is extruded from template; Last cover 20 is installed in main frame topmost; Be used to protect trident pressure roller 19 and template 18, prevent that coal slime or coal dust from spilling; Full thread hex bolts 21 is fixed on main shaft 24 upper ends with locking nut 22, prevents that trident pressure roller 19 is loosening from main shaft 24 when rotating at a high speed; Pressing plate 23 is pressed on the trident pressure roller 19, is used for locking nut 22 and trident pressure roller 19, prevents the loosening of trident pressure roller 19; Be used to connect each critical piece, the centre (host center) that casing 17 was connected with lower box 13 during main shaft 24 was installed in is used to connect each critical piece.Flat key 25 is used for the fixing of trident pressure roller 19 and main shaft 24; First lining 26 is the pad spare of trident pressure roller 19, is contained in the middle of cover 20 and the middle casing 17; Second lining 27 is the pad spare of trident pressure roller 19, and casing 17 is middle in being contained in; Flat key 28 is used for the fixing of second lining 27 and main shaft 24; Get rid of bin 29 and be fixed on the main shaft 24, be installed in below the middle casing 17; Batch mixing pan 30 is fixed on and gets rid of on the bin 29; Outside framework oil seal 31 is installed on the top chock 14, protection main shaft 24 when rotated with the wearing and tearing of top chock 14; Deep groove ball bearing 32 is connected with main shaft 24, is contained on the top chock 14; Ball bearing 33 is installed in top chock 14 lower ends, is used for fixing main shaft 24; Form the upper bearing (metal) assembly by top chock 14, deep groove ball bearing 32, ball bearing 33 etc.Flat key 34 is used for the fixing of canine tooth wheel seat and main shaft 24; The hexagonal articulation hole is used for being connected of gear wheel 35 and canine tooth wheel seat with bolt 37; Spring washer 36 is the bolster between hexagonal articulation hole usefulness bolt and the gear wheel, and is arranged on the hexagonal articulation hole with between bolt and the gear wheel; Cushion cover 38 is used to be installed between main shaft 24 lower ends and the step 45; Deep groove ball bearing 39 is installed in above the step 45, is used for fixing main shaft 24; Thrust ball bearing 40 is installed in below the step 45, is used for fixing main shaft 24; O shape circle 41 is arranged between stifle and the step 45, is used for sealing, prevents leakage of oil; Normal type single coil spring lock washer 42 is arranged between stifle 44 and the hex bolts 43, is bolster; Hex bolts 43 is used for being fastenedly connected of stifle and step 45; Stifle 44 is connected with step 45, holds main shaft 24, prevents that main shaft 24 from sinking and leakage of oil.
TS series moulded coal grinds roll-type comminutor major parameter
|The comminutor model
|Motor power (output) (KW)
|Particle diameter (mm)
|The finished granule rate
|Particle water content (%)
|Granule strength (N)
|Volume production (t/h)
|Unit weight (T)
The course of work of the present invention and operation principle:
Raw material is coal dust, broken coke, coal slime, and at first raw material being carried out Mechanical Crushing is coal dust, uses forcing press compression moulding then.This production method is simple, and product has intensity height, advantage such as cheap, is the desirable substitute products of natural lump coal, can be widely used in resident living with coal and industrial production coal.
Granulation flow system of the present invention: raw coal is a duff through shaker vibration sieve Xian earlier; Add in the duff and flow agent, binding agent and water admittedly after mixing stirring, enter the comminutor granulation, after pushing, be finished product again.
(1) coal divides screen system
Raw coal just enters the one-level vibratory sieve from harbour handling disembarkation and sieves, and one-level vibratory sieve mesh is 12-13mm, mainly is to guarantee screening fully, and the free surface moisture of coal requires≤8%, otherwise crosses wet can't the screening.Near duff is stacked under the sieve, enter the secondary vibration sieve of mesh 6mm during manufacturing again, the duff particle diameter≤4mm under the sieve is as the raw material of solid sulphur formed coal.Isolated lump coal can mix the back with solid sulphur formed coal to be used.The ratio of duff is roughly 40-50% after sieving.
(2) coal, sulphur-fixing agent, binding agent proportioning are mixed
The additional proportion of sulphur-fixing agent and binding agent is the key of solid sulphur formed coal success, and the former influences captured sulfur result, and the latter determines briquette strength.Consider the lump coal multifuel combustion that solid sulphur formed coal will come out with sub-sieve, the sulfur-bearing in the lump coal also will be included, thus sulphur-fixing agent with addition of the time calcium oxide addition to increase in proportion.
The binding agent kind is more, and the binding agent addition is decided with the kind of raw coal, and the caking property of coal that calorific value is low, ash is high is good, can lack adding additives, too much can reduce the calorific value of solid sulphur formed coal, increases ash, the influence burning.
(3) mixing of coal charge and humidification
Mix through the mixer stirring by humidification, sulphur-fixing agent, binding agent, water, coal dust are mixed.The humidity that mixes the back coal charge is very important, and too the wet type coal particle does not have intensity, and too dried granulation machine orifice plate can stop up, and generally is controlled at the outer moisture content 10% of compound and is advisable.Can control humidity by regulating discharge in the production.
Owing to adopted the granulation mode that edging is pressed of grinding, material is extruded fast by the moulding hole in the template under the brute force extruding, is delivered to rickyard after the process batch mixing pan throws away conveying equipment; Rotate lower part kinetic energy in high speed simultaneously and change into heat energy, the solid sulphur formed coal of producing is higher than environment temperature, have certain wet strength and good moisture evaporation, so needn't carry out heating, drying to product, as long as be placed under the coal canopy natural air drying 0.5-1 days, can reach the working strength requirement.Can place the outfield winter and dry or utilize heater oven dry, intensity is better like this, and its granule strength can reach 30～50N/ grain.