CN2194262Y - Double roll moulding machine for shaped coal with holes - Google Patents

Abstract

The utility model relates to a double roll moulding machine for shaped coal, which belongs to the field of special pressing machines. By using the existing moulding machine, the conjugate curve interference of is caused by the moulding tringle of a centre hole; the demoulding of the moulding products is difficult; the difficult position of the phase angle of the double rolls leads to loose matching of ball and socket; preforated granular shaped coal can not be rolled. The demoulding system composed of a movable central tringle adjusted by the asymmetric ball and socket and a spring, a cam, a carrier rod and a spring, and a loose key device used for adjusting angles solves the problems. Under the condition of no change of the existing process of the shaped coal and equipment, the preforated granular products can be rolled by the utility model. A spiral pre-pressing device is additionally arranged on a feed hopper, and the powder products of coke and ore can be rolled.

Description

Double roll moulding machine for shaped coal with holes

The utility model belongs to the make-up machine of suppressing moulded coal for energy-conservation, and the classification subject on the patent is B30B, is that the powdery ature of coal fuel pressure that inexpensive amount is big is made porose graininess, to reach the use thermal efficiency that improves coal and purpose easy to use.

Current; civilian and industry mainly is to rely on direct burning solid shape coal to obtain heat energy; for lack other energy and being not easy to utilize coal the transformation form energy the area and for preventing erosion; the mountain forest grassland of preserving the ecological environment etc.; directly bake body shape coal; not only to continue, also will enlarge.Current mechanical coal mining and coal separation, the development of coal washing makes increasing less than the chip of 6mm in the readymade coal, and in order to utilize ickings and easy to use, fuel department is broken with coal dust, and adhesive is mixed and stirred in screening, uses for the user after being pressed into moulded coal.Metallurgy, the coke blacking of chemical industry, rough concentrate powder utilize after also adopting this pattern glomeration more simultaneously, from energy-conservation, also reflected this necessity, known at present, do not consider the factor of cooking stove, from the thermal efficiency of coal, directly burning the piece raw coal is 10%, burning coal briquette is 20%, and burning honeycomb briquette and porose briquet is 25～28%.The shape of moulded coal, the size by individual can be divided into graininess and bulk relatively, wherein can be divided into porose again and atresia two classes.Granular have only the atresia class at present, and with Domestic eggette, the clear water coal rod that chemical industry is used is representative, main feature is: individual little, and the slick and sly no corner angle in surface, three-dimensional dimension is approaching, be difficult for fragmentation, a small amount of fragmentation is arranged, do not influence normal use, can adapt to various burner hearths commonly used, the loading and unloading accumulating is convenient, and the moulding expense is low, and valuation is a unit with the quality, but kernel can not after-flame sometimes, so the thermal efficiency is lower.The porose briquet that porose bulk is used with civil honeycomb briquette and the catering trade, unskilled labourer's industry cooking stove is representative, and main feature is: individual big, non-round shape and there are corner angle on the surface, and it is bigger that three-dimensional dimension differs, easily broken, broken back influences normal the use, and the general only adaptation burner hearth close with shape own will be contained with rigid container during the loading and unloading accumulating and imitate, bother, moulding expense height, valuation has with number of individuals and two standards of quality, and is chaotic, but the basic after-flame of interior nuclear energy, the thermal efficiency is higher.The bulk of atresia is representative with the fire coal brick in the north etc. mainly, and range of application is narrower, and the each side combination property is also not as coal briquette and honeycomb briquette.

From the essence of coal combustion, mainly be carbonaceous and the chemical reaction of airborne oxygen under hot conditions in the coal, emit heat energy.Because oxygen is ubiquitous in air, carbonaceous to emit heat energy with oxygen generation chemical reaction fully, must make reaction be continued can contact with airborne oxygen with sufficient excess air and assurance carbonaceous.Therefore moulded coal is individual little, though carbon can both be contacted with oxygen, individuality is little, the space is also little, has hindered circulation of air, can not guarantee that sufficient excessive oxygen and carbon reacts.And individuality is big, the space is big, circulation of air is unimpeded, there are sufficient oxygen and carbon to react, but kernel and outer surface distance are excessive, all carbonaceous can not all participate in chemical reaction, therefore when the carbonaceous complete oxidation of outer surface synthesizes waste residue, the carbonaceous of kernel does not participate in reaction and is taken as waste residue yet and discharges out of the furnace.So do not having under the situation of other supplementary means, it all is unfavorable improving air demand and reduce individuality merely the after-flame that increases carbonaceous with the increase individuality merely.From the mechanics angle, individuality is big more, and required external force is how much numbers and rises during the formed product of the same same intensity of quality, has caused moulding expense height.Simultaneously individuality is big more, and not slick and sly have corner angle, and it is bigger that three-dimensional dimension differs, easy more fragmentation under the same intensity, and the difficulty when having increased the loading and unloading accumulating, expense rises.And coal is the big commodity of inexpensive amount, and the expense that the expense of any measure of economizing on coal must produce smaller or equal to economizing on coal and being convenient for people to use reduces the comprehensive surcharge of polluting etc.

In sum, the making burning condition is good, burning fully, the loading and unloading accumulating is convenient, the moulding expense is low, the moulded coal goods that can adapt to great majority cooking stove commonly used are current objective demands, learn that from experiment the only fuel individuality of civilian and middle-size and small-size industrial furnace is the individual form of the moderate φ of voidage 25～50.Therefore, the logical heart coal in this scope is exactly the individual form of this desirable moulded coal goods.Logical heart coal clips a short cylinder by two hemispheres to be formed, and profile be similar to ball, in the top of through hole from upper sphere arranged, pass short cylinder, the bottom of time ball that goes directly.Therefore the advantage of former coal briquette it all had, and the kernel of former honeycomb briquette and outer surface are also inherited apart from the advantage of lacking and have been developed, so the distance of kernel and outer surface is less than coal briquette, honeycomb briquette, porose briquet, the after-flame degree is best, the thermal efficiency is as the criterion with civilian thermal static draft formula cooking stove, greater than 30%.

The former of moulded coal mainly contains pair roller type, punching type, squash type, roof pressing type, wherein pair roller type is most effective, but because the influence that interfered by the conjugate curves of ball-and-socket nib when two rollers rotate on two running rollers generally can only be suppressed simple small-sized solid sphere shape product.

The utility model purpose will be made a kind of make-up machine of pair roller type structure, makes porose granular logical heart coal product, and the production of energy practicability is for people's use.

It mainly is ball-and-socket curve on general two running rollers conjugate curves characteristics of motion must meet two rollers and rotate in opposite directions the time that common twin rollers can not be suppressed reason from the hole granular product, otherwise when two ball-and-sockets are met, the product compression forming, and product is smashed by the ball-and-socket edge when two ball-and-sockets separate.During as asymmetrical design, the finished product in the bigger side ball-and-socket again can't automatic demoulding.Therefore to be that ball-and-socket with general symmetric design makes a side into big for roller briquetting machine of the present utility model, one side is little, local asymmetric, overall symmetry, increase pickoff, and with main wearing part: ball-and-socket on the running roller and running roller outer rim, be divided into roller body and module board two parts that ball-and-socket is arranged, be beneficial to only change main wearing part, for guaranteeing the ball-and-socket driving fit between two rollers, increase phase adjusting apparatus, by the draw key of screw control, can make low-angle and regulate, an original roller is driven another roller, change two rollers into and come driven in synchronism, and increase roll spacing adjustment and deadly condition automatic stopping device by same power.

Therefore, this make-up machine operation principle is a pair roller type, the efficient height, the required moulding power of unit product is little, structure is simpler than punching type honeycomb briquet forming machine, again owing to main wear-out part can regularly be changed, avoid old-fashioned roller briquetting machine ball-and-socket to wear and tear and connected the shortcoming that running roller changes together, initial stage is purchased the machine expense and the long-time running maintenance cost is low thus, the advantage of current all kinds of moulded coals is drawn and developed to the logical heart coal of this machine production simultaneously, and thermal efficiency height is easy to use, therefore the advantage of this machine of advantages of finished product makes this machine combination property more superior.

As Fig. 1 is the profile of roller body etc.; Fig. 2 is the periphery expanded view of module board; Fig. 3 is frame and running part schematic diagram.

In conjunction with the accompanying drawings this machine is described further now: two row's nibs are arranged on the module board (1), one row is shallow cover half hole, one row is a through hole of putting sliding block (2), module board mutually between and and roller between contact-making surface on corresponding tongue and groove is arranged, module board is paved with and tightens mutually with on the circumference of screw attached to roller (3).The working face of sliding block is a ball-and-socket, relative with the ball-and-socket in shallow cover half hole on the module board of another roller, central through-hole wall forms the short cylinder of product, and two hemispheres are formed by cover half hole on two roller module boards and the ball-and-socket on the sliding block respectively.The non-ball-and-socket of sliding block simultaneously has push rod (4) in succession, be close to roller (3) by the spring (5) that is overlapping, the center of sliding block is through-core hole tringle (6), tringle has formed the central through hole of finished product, and an end of tringle passes the roller wall, and the other end is supported by spring (5), make tringle exceed module board some, can reach the ball-and-socket bottom in the cover half hole on another roller, it is equally flat that chance external force can be retracted to module board, during such as process hopper (20).The push rod lower end is that pulley (7) contacts with the cam (9) that is enclosed within on the central shaft (8), the circumference minimum point of the height point of cam and roller matches, make in type product when the circumference minimum point, the push rod pulley is promoted by the height point of cam, overcome the frictional force of the through-hole wall of the tension force of spring and module board to finished product, promote sliding block by push rod and break away from roller, in type product is not contacted with center tringle outer rim with the through-hole wall of module board, the quality of finished product own will overcome the suction of the ball-and-socket of sliding block in the face of finished product, oneself breaks away from roller body, fall into the finished product hopper, outside the discharge machine, wherein be arranged under the circumference minimum point the higher material bar (19) that blocks and assist the finished product demoulding.Behind the product stripping, sliding block resets by the tension force of spring again, is affixed on the roller wall.Attached on the end cap (10), end cap is enclosed within on the rolling bearing (11) roller (3) with screw, and rolling bearing is enclosed within again on the central shaft (8), and central shaft is fixed on the frame (12).Connected set gear (13) or sprocket wheel (14) on the end cap of one end, and the power that (roller far away is chain drive from motor) gear (13) or sprocket wheel (14) are accepted the gear (17) on the drive rod that meshed gears (15) or sprocket wheel (23) transmit from motor (16) makes two rollers do to rotate in opposite directions.The equal angular of the ball-and-socket driving fit between two rollers is regulated and is adjusted by the screw on the draw key between gear and end cap (18).It is to float on the frame from a motor side roller far away that sprocket wheel is housed, and by roll spacing regulating spring (21) dancer rools distance, meets deadly condition, touches the limit switch automatic stopping.There is the netted condition product hopper of tiltedly putting the below of pair roller, and the belt conveyor hopper that goes directly is arranged under the hopper.Shaped article (22) is exactly the section of this logical heart coal.

During work, through pulverizing, screen, mix and stir the coal dust of adhesive, fall to compressional zone between two rollers from hopper, to the place's compression moulding of meeting of two rollers, a side that breaks away from the cover half hole then goes to below of roller with sliding block one side, by the top rod driving of cam jack-up.Eject module board,, fall into the web-shaped product hopper after the demoulding, outside the discharge machine, fall within on the belt conveyor, sent back to hopper, participate in the next round circulation again with the moulding coal dust of taking out of that do not have by gravity and the help of blocking the material bar.The cover half hole of two rollers and the mutual pairing work of sliding block constantly are pressed into outside the logical heart coal manufactured goods discharge machine coal dust that is input into from hopper.

Above-mentioned pair roller type make-up machine installs the spiral jack unit additional at the hopper place, also can the demanding metallurgy of compression moulding, the coke blacking and the rough concentrate powder of chemical industry, and make it become the product of logical heart coal shape.

Claims (5)

1, a kind of pair roller type make-up machine that flour is rolled into porose graininess pelletizing, mainly the roller that is rotated in opposite directions by two works that are covered with ball-and-socket is formed, it is characterized in that: on the roller in an orderly manner interlacing arranging fixed type ball snap hole and movable ball-and-socket nib, roller is to have on the central shaft of cam by bearing holder (housing, cover), roller is done in opposite directions run-in synchronism by being connected the power that sprocket wheel accepts to export on the same power transmission shaft around central shaft separately by connecting gear and another roller, and the ball-and-socket driving fit on two rollers guarantees corresponding phase angle between two rollers by the draw key of the energy screw adjusting on the roller.

2, make-up machine according to claim 1, roller when it is characterized in that operate as normal is made up of the pack module plate by the ball-and-socket nib of roller itself and parcel roller itself, module board mutually between and and roller itself between tongue and groove is arranged, chucking mutually, and be aided with screw and fix, the assembled roller body complete when forming a use, that wearing and tearing back sectional changes as one.

3, make-up machine as claimed in claim 1 is characterized in that the centre bore tringle can be controlled by spring, and the position in roller is done radially movable.

4, make-up machine as claimed in claim 1, it is characterized in that the cam on the central shaft promotes by spring controlled push rod, make sliding block in type manufactured goods be ejected the through-hole wall of the dress sliding block on the roller, and it is auxiliary mutually by the collision of blocking the material bar, make the own demoulding of manufactured goods, by spring sliding block is resetted after the demoulding.

5, to be roller rest apart from the tension force of spring float over makes horizontal anomalous movement on the frame for make-up machine as claimed in claim 1, a roller that it is characterized in that chain gear transmission, controls roll spacing and roll-force between two rollers by screw regulating spring tension force.

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