CN2212009Y - Stair disc ball forming machine - Google Patents

Abstract

The utility model relates to a stair-shaped disc ball forming machine, belonging to the chemical fertilizer class, and relating to the field of compound mixed fertilizer granule forming technology. The utility model adopts a stair-shaped disc like a dish shape composed of an inner disc and an outer disc to replace a traditional disc to carry out the ball forming. A material scraping plate, a material unloading plate and a special-purposed injection nozzle are arranged at the appropriate position at the upper part of the stair-shaped disc, and the slope angle of the stair-shaped disc can be adjusted. The utility model is characterized in that the productivity is large, the investment is less, the granules are uniform, the strength is great, the ball forming rate is high, an outer housing can be packed, etc. The utility model is not only suitable for the ball forming of the compound mixed fertilizer with medium low, medium and high concentration, and can also be used for the ball forming of a cement raw meal and the ball forming of other industries.

Description

Stair disc ball forming machine

The utility model belongs to chemical fertilizer and makes class, relates to the compound fertilizer granule field shaping technique.

Grain forming equipment in the production of compound fertilizer has two kinds of drum-type and garden disc types, because drum-type granulation balling-up system complex, facility investment is big, and the technical requirements height seldom adopts for medium and small composite fertilizer factory.Therefore, granulation is mainly the disk granulation system in the traditional production of compound fertilizer flow process of current China, this flow process is simple, produce flexibly, less investment, go up detective, and granularity control is wide, the balling ratio height, returning charge is than little, extensively adopted, but the disk granulation system is intermittently reinforced that hot returning charge is random rotation not by medium and small compound fertilizer factory, mainly control each production link by rule of thumb by the workman, the quality product fluctuation is big.Granular size is inhomogeneous, and the particle degree of tightness differs, and influences balling ratio and product strength.

The purpose of this utility model is in order to overcome the existing defective of above-mentioned dribbling balling machine garden disc type equipment to be improved.Promptly replace the garden disc machine with ladder garden dish nodulizer, improvement is from balling-up mechanism, the mechanism of dribbling balling machine is: when the garden dish with certain inclination angle and linear velocity rotates, dish medium silt material forms a couple with the frictional force of trying to get to the heart of a matter and rolls, under the Pan Bi constraint, revolve round the sun along garden disc spins direction again simultaneously thereupon, under frictional force and centrifugal action, be thus lifted to certain altitude, tumble then.In whole motion process, the powder material is because comprehensive mechanical movement---and roll, extruding, collision and approaching mutually, agglomerate into by the liquid phase that constantly provides (binding agent) surface tension and roll bigger and bigger, roll the fertiliser granulates that closes symbol product requirement specification in garden more more.But because the garden dribbling balling machine is not recognized balling-up district, (raw material) feed zone as yet, is sprayed district's (liquid phase) organic relation each other with caking agent, on the dish structure of garden, do not do special the arrangement, so make the disorder of powder (particle) material movement track, the comprehensive mechanical motion is not strong mutually, granulation tissue is loose, and caking agent can't evenly spray in addition, and particle is inhomogeneous, the ratio of size is great disparity especially, has increased returning charge.Raw material constantly pours in addition, form resistance and grip effect being in powder (particle) material in rotation and the revolution, rolling speed is neglected neglect slowly soon, influence the tight of granulation tissue, also reduce balling ratio, only can satisfy the good material balling-up purpose of lower concentration and balling-up.But along with development in agricultural science and technology, more and more higher to the granulated fertilizer technical requirements, the processing method female surface is also big more, and the bad fertilizer of balling-up is also wanted balling-up, as (the raw material balling-up are poor) such as height, middle concentration multicompentnt granular fertilizer.In order to realize mechanized application, the particle requirement garden is sliding so that flow, and intensity wants big so that store, and the parcel shell is so that the fertilizer validity period is long etc., and above-mentioned garden dish nodulizer just seems powerless.

The technical solution of the utility model is to have adopted ladder garden dish nodulizer, and the garden dish that is about to former garden dribbling balling machine is improved to the dish-shaped ladder garden dish of the picture that is stairstepping of small one and large one outer dish inner disc.And the garden dish is divided into I, II, III, four quadrant area (see figure 1)s of IV; if during the balling-up of ladder garden dish for turning clockwise; then control the inner disc II, the III quadrant is the balling-up district; be feed zone between inner disc I, the IV quadrant; inner disc IV quadrant is for spraying the district; inner disc balling-up in a word, and coil reinforcing particle outward or carry out other art breading, as particle involucrum or the like.Simultaneously, respectively inner disc and outside dish set up material scraping plate and stripper dexterously, the material scraping plate that becomes 10～20 ° of angles with median vertical line promptly is set above inner disc I quadrant, the material scraping plate width is 0.4～0.5 times of inner disc radius, material scraping plate is apart from trying to get to the heart of a matter 5～15 millimeters, and material scraping plate is apart from 10～30 millimeters on inner disc wall; Coil III quadrant below outside stripper is set, the bottom is provided with a special nozzle above inner disc IV quadrant, and simultaneously, 45～50 ° at whole ladder dish inclination angle is also adjustable, and ladder dish rotating speed is can from 0 to 15 rev/min adjustable, and has a high regard for accent with stepless change.

The structural representation of the utility model ladder garden dish nodulizer as shown in Figure 1.The left side is a vertical view among Fig. 1, and the right is a side-view, and in Fig. 1, (1) is scraper plate; (2) be stripper; (3) be the discharging scraper-trough conveyer; (4) be buncher; (5) be speed reduction unit; (6) be adjusting screw(rod), be used to regulate dish inclination angle, ladder garden and use; (7) be fixed support, be used for fixing material scraping plate and stripper; (8) be rotating shaft, be used to support ladder garden dish and drive ladder garden disc spins and use; (9) be support; (10) be bearing support; (11) be inner disc; (12) be outer dish; (13) be special nozzle.In the left view of Fig. 1, counter clockwise layout I, II, III, four quadrant areas of IV; (a) for the balling-up district, promptly in the kidney-shaped of interior dribbling shade, at II, III quadrant; (b) be the raw material supply district, at inner disc I, IV quadrant; (c) for spraying the district, in IV quadrant inner disc left side.Ladder garden dish becomes the hinge joint group to close with support (9), the screw rod of regulating piece number (6) can change dish inclination angle, ladder garden, piece number (4), (5), (7), (8) are fixed on the piece number (10), buncher (4) rotates speed reduction unit (5) by vee-belt, drive rotating shaft (8) rotation, thereby make ladder garden disc spins, rotating speed can be appointed accent from 0 to 15 rev/min.Material scraping plate (1) and stripper (2) are separately fixed on the fixed support (7), when ladder garden dish clockwise rotates, material scraping plate (1) becomes 10～20 ° of angles at inner disc (11) I quadrants with median vertical line, its width is 0.4～0.5 times of inner disc radius, apart from inner disc (11) end 5～15 millimeters, apart from 10～30 millimeters on inner disc (11) wall.Stripper (2) coils the III quadrant of (12) outside, and discharging scraper-trough conveyer (3) also coils corresponding position, (2) the III quadrants outside outside.If ladder garden dish inhour is rotated, the installation of then above-mentioned sequence number (1), (2), (3) all should be shifted to opposite position.

When the disc spins of ladder garden, powder grain material in the inner disc (11) is because frictional force and centrifugal force are thus lifted to material scraping plate (1) position, be obstructed and tumble at inner disc (11) end, through constantly promoting and tumble kidney shape vortex bed of formation, material is high speed rotation and revolution in the vortex bed, binding agent sprays to the bottom and the middle part of vortex bed, with abundant moistening powder (particle) material, owing to roll, extruding, the motion of comprehensive mechanicals such as collision, by liquid phase surface tension, mutually near agglomerating into little garden particle, because material is in independently vortex bed high speed motion, integrated motion is very strong, moistening in addition evenly, soon can formative tissue tight, uniform particles, the particle ball that intensity is higher; The good grading of garden dish, particle is ascending, emersion one after another made progress from inner disc (11) end, dish (12) outside after reaching certain specification, under follow-up material promotes, overflowing into, because outer dish (12) disk track increases suddenly, centrifugal force increases, particle rolling wire speed is also suddenly accelerated, the comprehensive mechanical motion is stronger, while particle rolls the tight garden of rubbing with the hands again, forms good outward appearance and internal structure.Form coated fertilizer if need carry out the particle involucrum, also can coil (12) outside and mend the powder processing by particle humidity.If need to form the shell of different structure, also can coil (12) outside Yi Bian spray the involucrum liquor, Yi Bian mend powder or the like.The intact back of technological process overflows into discharging scraper-trough conveyer (3) and send next process under follow-up particulate promotes.

Dish nodulizer in the utility model ladder garden is compared with the drum-type tablets press, has characteristics such as reduced investment, production handiness are big, the granularity span of control is wide, good grading, balling ratio height, returning charge be low.The utility model ladder garden dish nodulizer is compared with the garden pan-type pelletizer; throughput is big; equal scale can be put forward output more than 60%; spheroidal particle is even, and outward appearance is obviously excellent, the granule strength height; balling ratio is higher; equal scale balling ratio can bring up to 95% from 80%, and, can carry out special processing involucrum etc. in the particle appearance.

Dish nodulizer in the utility model ladder garden is applicable to the granulation usefulness of basic, normal, high concentration composite fertilizer in the chemical fertilizers production, also applicable to the balling-up of cement slurry balling-up and other industries.

Claims (2)

1, garden, species stage dish nodulizer, it is characterized in that it mainly is that adjusting screw(rod) (6) and the fixed support (7) and the bearing support compositions such as (10) at inclination angle are coiled in material scraping plate of installing above coiling in the ladder garden (1) and stripper (2) and special nozzle (13), adjusting ladder garden by inner disc (11) and stepped the coiling, support the rotating shaft (8) of coiling in the ladder garden, the buncher (4) and the speed reduction unit (5) of drive rotating shaft (8) rotation as dish-shaped ladder garden of dish (12) formation outward.

2, according to the described ladder of claim 1 garden dish nodulizer, it is characterized in that material scraping plate (1) is arranged on appropriate location, top, inner disc (11) top, material scraping plate (1) becomes 10～20 ° of angles with inner disc (11) median vertical line, material scraping plate (1) is wide to be 0.4～0.5 times of inner disc (11) radius, material scraping plate (1) and 5～15 millimeters of inner disc (11) end distances, material scraping plate (1) and 10～30 millimeters of inner disc (11) spans.

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