CN201042662Y

CN201042662Y - Controlled released large grain seed-coating machine

Info

Publication number: CN201042662Y
Application number: CNU2007200340263U
Authority: CN
Inventors: 查国才; 查文龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-01-25
Filing date: 2007-01-25
Publication date: 2008-04-02
Anticipated expiration: 2017-01-25

Abstract

The utility model relates to a device for coating and drying process of granular materials in the fields of pharmacy, chemical, food and agricultural industries, more particularly a controlled-release large granule coating machine for coating and drying large granules. The machine comprises a closed loop formed by connecting a steam heater, a main frame, a feeding device, a cyclone separator, a condenser and a fan in sequence; a coating liquid outlet equipped at the bottom of the condenser, and a discharge port provided at the bottom of the main frame. The utility model overcomes the problem that the prior coating machine fails to coat large granules and the open-type coating machine fails to circulate the coating liquid, resulting in the waste of coating liquid, high coating cost and environmental pollution. The utility model realizes the coating process of large granules with diameter larger than 3 mm, with good coating effect, and can form a dense coating on the surface of the large granular material. Additionally, the coating liquid can be recycled, so as to reduce the consumption of coating liquid, reduce the coating cost, and prevent environmental pollution.

Description

Slow control large grained lagging cover machine

Technical field

The utility model relates to the equipment of the granule materials dressing drying process in fields such as pharmacy, chemical industry, food, agricultural, particularly large granular materials is carried out the slow control large grained lagging cover machine of dressing drying.

Background technology

During the design of common dressing equipment general wind speed all＜4m/s, coating effect to some molecules such as medicines is more satisfactory, and large granular materials is carried out dressing, often can not form fluidization, and when dressing, can not form good material endless-chain, coating solution just can not atomize uniformly on the material surface, does not also just form the coating membrane of one deck densification on the material surface, and the final material that forms does not just have the effect of slowly-releasing, controlled release yet.And also just can not dressing for the bulky grains such as slow controlled-release compound fertilizer of picture in the fertilizer industry, do not improve fertilizer utilization ratio.

Secondly traditional fluidization dressing equipment all is open type, and the coating solution that contains organic solvent that uses in the dressing operation all can not recycle, and has not only caused the coating solution waste, has increased the dressing cost virtually, and has polluted the environment.

Summary of the invention

The technical problems to be solved in the utility model is: overcoming existing dressing equipment can not carry out dressing to large granular materials; The coating solution of the dressing equipment of open type can not recycle, not only cause the coating solution waste, increase the dressing cost, and the deficiency that pollutes the environment, the utility model provides a kind of slow control large grained lagging cover machine, solved the dressing problem of diameter, and coating effect is good, can forms the coating membrane of one deck densification on the large granular materials surface greater than the large granular materials of 3mm; Coating solution can be recycling in addition, saved coating solution, reduced the dressing cost, do not pollute the environment.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of slow control large grained lagging cover machine, has the steam heater that connects successively, main frame, feed arrangement, cyclone separator and condensing plant, be provided with the spray gun of spray coating solution in the main frame, the air inlet of cyclone separator is connected with feed arrangement bottom and dressing tower top, the air outlet of cyclone separator links to each other with the air inlet of condensing plant by pipeline, the air outlet of condensing plant be connected with blower fan by pipeline, the air outlet of blower fan is connected with the air inlet of steam heater by pipeline, the bottom of condensing plant is provided with the coating solution outlet, and the bottom of main frame is provided with discharging opening.Coating solution is pressed into spray gun by infusion pump; spray by spray gun; atomizing is on the material surface; and constantly being blown into along with hot blast; the humid air that contains organic solvent is along with hot blast enters into condensing plant; and organic solvent is collected recycle and reuse again after by the condensing plant condensation, has so just saved the dressing cost, has protected environment simultaneously.Tradition dressing drying equipment when dressing just begins because the minute quantity fine powder that collision produces all is to collect by sack cleaner, dust then adopts cyclone separator to collect in the utility model, be collected in than traditional sack cleaner like this and reduced 1000Pa on the SR, and changed in traditional packaging technique cloth bag and very easily bondd and influence permeability by coating solution, so both reduce SR, saved fan energy consumption again.

For improving the organic solvent rate of recovery, the described condensing plant condenser group that at least two condensers are in series of serving as reasons, the air outlet of cyclone separator links to each other by the air inlet of pipeline with the chopped-off head condenser, the air outlet of backing condenser links to each other by the air inlet of pipeline with back level condenser, and the air outlet of last condenser stage is connected with blower fan by pipeline.

Described main frame has the dressing tower, the dressing tower is made up of the cylinder body of the tower and the lower cone that fuse, be provided with guide cylinder in the lower cone of dressing tower, also be equipped with on the lower cone and be used for the guide cylinder lowering or hoisting gear of lifting guide cylinder, the height of dressing tower compares more than or equal to 4 with the diameter of cylinder body of the tower, feed arrangement feeds dressing tower inner chamber at dressing tower middle part, spray gun be arranged on the guide cylinder center under, the hydrojet direction of spray gun is for vertically upward.The height of dressing tower compares more than or equal to 4 with the diameter of cylinder body of the tower, guide cylinder is set in lower cone, pass through to satisfy most of air quantity, when wind speed greater than 20m/s, bulky grain can form the fluidization of class fountain type, particle is quickened by air-flow in the guide cylinder and rises, leave guide cylinder again from the center ejection, to around be scattering into annulus, rely on self gravitation slowly to descend then, sprayed by ascending air again to awl at the end and gone, so circulation, the hydrojet direction of spray gun is consistent with particle motion, and the spray gun hydrojet is quick, continue, homogeneous, coating solution are sprayed near the orderly particle surface of the motion of nozzle, drop is to shorter by bag particle surface distance, easily form continuously coating membrane closely, thereby make the dressing yield rate of material reach nearly 100%, more satisfactory to the particle effect of coating diameter＞3mm.

For making the guide cylinder position adjustments convenient, described guide cylinder lowering or hoisting gear has axle, axle is located in the lower cone middle part, be set with gear on the axle, the guide cylinder outer wall is fixed with tooth bar along the guide cylinder axis, the wheel and rack engagement, be fixed with bearing block on the lower cone outer wall at axle two ends, is connected by bearing between axle and bearing block, the bearing block outside spool on be set with ratchet device and handwheel, be fixed with guide ring in the lower cone, guide ring is made up of interior ring and gib block, gib block one end is fixedlyed connected with the lower cone inwall, the other end is fixedlyed connected with interior ring, and guide cylinder is slidingly connected by feather key and interior ring, and described guide ring has more than two or two.

The beneficial effects of the utility model are, the height of slow control large grained lagging cover machine dressing tower of the present utility model compares more than or equal to 4 with the diameter of cylinder body of the tower, guide cylinder is set in lower cone, pass through to satisfy most of air quantity, when wind speed greater than 20m/s, bulky grain can form the fluidization of class fountain type, the hydrojet direction of spray gun is consistent with particle motion, hydrojet in the same way, hydrojet is quick, continue, homogeneous, coating solution is sprayed near the orderly particle surface of the motion of nozzle, drop easily forms continuously coating membrane closely, thereby makes the dressing yield rate of material reach nearly 100% to shorter by bag particle surface distance, particle effect to coating diameter＞3mm is more satisfactory, and the coating membrane quality is good, be suitable for bulky grain and production in enormous quantities.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the structural representation of the guide cylinder lowering or hoisting gear in the utility model.

Fig. 3 is the vertical view of Fig. 2.

Fig. 4 is the left view of Fig. 2.

Fig. 5 is the I partial enlarged drawing of Fig. 2.

Fig. 6 is the II partial enlarged drawing of Fig. 2.

Fig. 7 is that the A of Fig. 2 is to view.

1. steam heaters among the figure, 2. main frame, 21. discharging openings, 22. the dressing tower, 221. cylinder bodies of the tower, 222. lower cones, 3. feed arrangement, 4. blower fan, 5. spray gun, 6. condensing plant, the outlet of 61. coating solutions, 7. cyclone separator, 8. guide cylinder, 9. guide cylinder lowering or hoisting gear, 91., 92. gear, 93. tooth bars, 94. bearing blocks, 95. ratchet device, 96. handwheels, 97. guide rings, 971. interior ring, 972. gib blocks, 98. feather keys, 100. fertilizer, 101. fine powders, 102. coating solutions, 103. the cooling water trend, 104. air directs, 105. materials trend.

The specific embodiment

Slow control large grained lagging cover machine of the present utility model shown in Fig. 1～7, has the steam heater 1 that connects successively, main frame 2, feed arrangement 3, cyclone separator 7, condensing plant 6 and blower fan 4, the condenser group of condensing plant 6 for being in series by three condensers, be provided with the spray gun 5 of spray coating solution 102 in the main frame 2, the bottom of main frame 2 is provided with discharging opening 21, main frame 2 has dressing tower 22, dressing tower 22 is made up of cylinder body of the tower 221 that fuses and lower cone 222, be provided with guide cylinder 8 in the lower cone 222 of dressing tower 22, also be equipped with on the lower cone 222 and be used for the guide cylinder lowering or hoisting gear 9 of lifting guide cylinder 8, guide cylinder lowering or hoisting gear 9 has axle 91, axle 91 is located in lower cone 222 middle parts, be set with gear 92 on the axle 91, guide cylinder 8 outer walls are fixed with tooth bar 93 along the guide cylinder axis, gear 92 and tooth bar 93 engagements, be fixed with bearing block 94 on lower cone 222 outer walls at axle 91 two ends, axle 91 is connected by bearing with 94 of bearing blocks, on the axle 91 in a bearing block 94 outsides, be set with ratchet device 95 and handwheel 96, be fixed with in the lower cone 222, following two guide rings 97, guide ring 97 is made up of interior ring 971 and gib block 972, gib block 972 1 ends are fixedlyed connected with lower cone 222 inwalls, the other end is fixedlyed connected with interior ring 971, guide cylinder 8 is slidingly connected by feather key 98 and interior ring 971, the height of dressing tower 22 compares more than or equal to 4 with the diameter of cylinder body of the tower 221, feed arrangement 3 communicates with dressing tower 22 inner chambers at dressing tower 22 middle parts, spray gun 5 be arranged on guide cylinder 8 centers under, the hydrojet direction of spray gun 5 is for vertically upward, the air inlet of cyclone separator 7 is connected with feed arrangement 3 bottoms and dressing tower 22 tops, the air outlet of cyclone separator 7 links to each other with the air inlet of first-stage condenser by pipeline, the air outlet of first-stage condenser links to each other with the air inlet of secondary condenser by pipeline, the air outlet of secondary condenser links to each other by the air inlet of pipeline with three grades of condensers, the air outlet of three grades of condensers is connected with blower fan 4 by pipeline, the air outlet of blower fan 4 is connected first-stage condenser by the air inlet of pipeline with steam heater 1, the bottom of secondary condenser and three grades of condensers is provided with coating solution outlet 61.

During work, will coated granules add in the dressing tower 22 and in the outside of guide cylinder 8 by feed arrangement 3; Start blower fan 4; Open steam heater 1, air is heated, make temperature reach required requirement; Blower fan 4 can be connected with a frequency converter, by frequency converter air quantity is regulated, and makes air quantity reach required requirement; Regulate the height of guide cylinder 8, granular material is outflowed in guide cylinder 8 from guide cylinder 8, the materials in the guide cylinder 8 are upwards sprayed material by the high velocity air that blower fan 4 produces, and material spilling forms a circulation outside guide cylinder 8; Coating solution 102 is pressed into spray gun 5 by infusion pump, by spray gun 5 ejections, material is carried out dressing, regulates air supply and spouting liquid simultaneously, and the material spray dressing liquid in the spray gun 5 alignment guide tubes 8 is at the coating membrane of granular material surface formation one deck densification; Open the low-temperature receiver of condensing plant 6, the solvent in the coating solution 102 is reclaimed; Moisture is constantly discharged in the dressing process, and fresh air constantly replenishes, wait coating solution 102 spray after, drying a period of time steam off heater 1, blower fan 4 are opened discharging opening 21 material are unloaded to going out trolley.The bulky grains such as slow controlled-release compound fertilizer that the utility model can be used in the fertilizer industry carry out dressing, make granular material obtain slow-releasing and controlled-releasing action, improve the utilization rate of fertilizer 100.

Claims

1. slow control large grained lagging cover machine, has steam heater (1), main frame (2), feed arrangement (3) and blower fan (4), steam heater (1), main frame (2) and feed arrangement (3) connect successively, be provided with the spray gun (5) of spray coating solution in the main frame (2), it is characterized in that: also have condensing plant (6) and cyclone separator (7), the air inlet of cyclone separator (7) is connected with feed arrangement (3) bottom and main frame (2) top, the air outlet of cyclone separator (7) links to each other by the air inlet of pipeline with condensing plant (6), the air outlet of condensing plant (6) be connected with blower fan (4) air inlet by pipeline, the air outlet of blower fan (4) is connected by the air inlet of pipeline with steam heater (1), the bottom of condensing plant (6) is provided with coating solution outlet (61), and the bottom of main frame (2) is provided with discharging opening (21).

2. slow control large grained lagging cover machine according to claim 1, it is characterized in that: described condensing plant (6) the condenser group that at least two condensers are in series of serving as reasons, the air outlet of cyclone separator (7) links to each other by the air inlet of pipeline with the chopped-off head condenser, the air outlet of backing condenser links to each other by the air inlet of pipeline with back level condenser, and the air outlet of last condenser stage is connected with blower fan (4) air inlet by pipeline.

3. slow control large grained lagging cover machine according to claim 1, it is characterized in that: described main frame (2) has dressing tower (22), dressing tower (22) is made up of cylinder body of the tower (221) that fuses and lower cone (222), be provided with guide cylinder (8) in the lower cone (222) of dressing tower (22), also be equipped with on the lower cone (222) and be used for the guide cylinder lowering or hoisting gear (9) of lifting guide cylinder (8), the ratio of the diameter D of the height H of dressing tower (22) and cylinder body of the tower (221) is more than or equal to 4, feed arrangement (3) communicates with dressing tower (22) inner chamber at dressing tower (22) middle part, spray gun (5) be arranged on guide cylinder (8) center under, the hydrojet direction of spray gun (5) is for vertically upward.

4. slow control large grained lagging cover machine according to claim 3, it is characterized in that: described guide cylinder lowering or hoisting gear (9) has axle (91), axle (91) is located in lower cone (222) middle part, be set with gear (92) on the axle (91), guide cylinder (8) outer wall is fixed with tooth bar (93) along the guide cylinder axis, gear (92) and tooth bar (93) engagement, be fixed with bearing block (94) on lower cone (222) outer wall at axle (91) two ends, be connected by bearing between axle (91) and bearing block (94), on the axle (91) in a bearing block (94) outside, be set with ratchet device (95) and handwheel (96), be fixed with guide ring (97) in the lower cone (222), guide ring (97) is made up of interior ring (971) and gib block (972), gib block (972) one ends are fixedlyed connected with lower cone (222) inwall, the other end is fixedlyed connected with interior ring (971), and guide cylinder (8) is slidingly connected by feather key (98) and interior ring (971).

5. slow control large grained lagging cover machine according to claim 4 is characterized in that: described guide ring (97) has more than two or two.