JPH01502649A - Granular material coating and granulation equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] name of invention Granular material coating and granulation equipment Technical field The present invention relates to a device for coating and granulating granular materials.

Coating or granulation means, especially in the case of seeds, that each seed grain is coated with plant protection agents, fertilizers and Refers to the application of a neutral substance in a layer, in which case the above material is in liquid and/or may be in powder form.

Coating and granulation protect seeds against harmful plants and pests and apply fertilizer substances. It is necessary for cloth.

In addition to the application of the above substances, the ratio of so-called particles sprinkled on the ground by sowing machines Individual dissemination of relatively irregular and specialized seeds (e.g. beet seeds) is warranted. Therefore, it needs to have a uniform, almost spherical shape.

Background technology In the prior art, powder coating equipment is used to carry out this known method. this The device consists of a shell-like mixing drum and a drive platform. 15~ depending on the dimensions of the device Fill the device with 50 kilograms of seeds. In this case, the worker manually removes the and powder alternately.

The operator can then visually determine whether the desired material distribution or required diameter has been achieved. 0 The granules must then be discharged from the apparatus and classified. The subsieve part is , return to the equipment and granulate again. This operation is repeated until the desired dimensions are obtained. do.

It takes 20 to 25 minutes for one charge.

West German Publication Tube No. 2.551.579 shows a rotatable tank and the table of seeds contained in the tank. A feeding vibrator terminates in a perforated head below the surface and a drain located above the seeds in the tank. A seed coating device is described comprising an outlet. In this case, the above head should be The arrangement is a blow conduit exiting the machine and connected to the coating material tank.

This known device consists of a rotationally symmetrical vessel and is only suitable for batch operation. Because For example, since there are technical difficulties in using a tank, it is difficult to continuously supply and discharge granulated material. This is because it is not provided.

This known device only has a supply conduit and a storage tank for the granulated material. However, if you do not have a measuring device for this purpose, or if you do not have a measuring device for seed supply, Not yet.

West German Open Tube No. 3,033,433 has a hopper for supplying the material to be treated attached to the end face. A plant seed coating device is described in which a housing is provided with one type of screw conveyor. There is. In this case, immediately after the supply hopper, the processing One or two spray nozzles are provided for charging the liquid. screw conveyor This is followed by a conveyor belt with a so-called bloomer at one end. This public Coating and granulation of granular materials can be carried out using known equipment, which also It is unsuitable for this purpose.

In this known device, coating takes place in a screw conveyor. This known With the device it is not possible to coat the seeds in tablet form. west german open tube No. 3.033.433 essentially involves coating seeds with chemicals that retard germination. Regarding things. With this type of coating, the resulting aggregate particles must then be separated. Ru.

Disclosure of invention The purpose of the invention is to perform coating and granulation continuously, unlike known devices. Once the required amount of coating material and granulation material are uniformly distributed on each particle, The objective is to create a device that can be automatically controlled, monitored and applied.

The above purpose consists of a metering device for feeding granular materials (in particular seeds) and a plurality of spray nozzles. According to the invention, in a device for coating and granulating granular materials having a slurry, The drum is preferably polygonal and has an inner surface lined with rubber or synthetic resin. one or more spray pumps connected to a metering pump; one connected to a nozzle, one or more powder coating devices, and another metering pump Alternatively, this can be achieved by sequentially providing a plurality of spray nozzles.

The powder coating equipment consists of a brushed screw attached to a pipe that exits from one end of the drum. It is preferable to do so. In this case, the pipe is dust-tight in the area of the spray nozzle. with multiple discharge slits distributed over the remaining length of the pipe. have

Starting with the device according to the invention, coating and granulation of the granular material is carried out continuously be able to.

When treating seeds, basically three types of operations are carried out: coating, mini-granulation and finishing. All three operations, which perform complete granulation, may involve multiple It can be carried out continuously with the device according to the invention. In this case, of course, a sieve (e.g. For example, a cylindrical sieve (for example, a cylindrical sieve) can be installed to return granules with a too small diameter to the granulator.

Brief description of the drawing The accompanying drawings are schematic representations of apparatus according to embodiments of the invention.

BEST MODE FOR CARRYING OUT THE INVENTION As is clear from the drawings, the equipment for continuous coating and granulation is It has a drum 1 whose surface is lined with rubber or synthetic resin. By measuring device 2 Thus, a seed stream of a predetermined amount by weight or volume is continuously supplied to the drum 1. measure The metering pump 3 is triggered by an electric pulse depending on the amount of seeds added, and this pump An infinitely selectable amount of liquid is transferred from a storage tank 5 equipped with an agitator 4 to a conduit 6. and by a continuous supply of zero seeds sprayed onto the seeds via the spray nozzle 7. , the seeds are forcibly fed in the drum 1. As soon as the seeds pass through the humidification section, It is also activated by pulses to apply powders (neutral granulation agents, fertilizers, plant protection) to the seeds. protective agent, etc.). The powder is removed from the storage tank 8 by a transfer screw 15. powder coating equipment.

The coating device consists of a pipe 9 equipped with a brushed screw 10. Pipe 9 is , with a large number of ejection slits. A large number of discharge slits are provided along the length of the pipe. By inserting the brushed screw 10 into the pipe 9, uniform coating can be easily achieved. It can be done. Specification for binding liquid to powder following powder coating section The length of the drum is provided. As in the process described above, lining the drum Based on the friction coefficient of and the polygonal structure of drum 1, the seeds are always kept in a transferred state be done. The powder material is thus uniformly deposited onto each particle.

In the last zone, the drum 1 is humidified again. In this case, metering and coating , the storage tank 12 with the stirring mechanism 11 is carried out similarly to the first part. A metering pump 13 supplies liquid to the nozzle 14 from this tank. .

international search report international search report ^T 枳martyr 0004 SA 2039 stationed

Claims (2)

[Claims] 1. a metering device (2) for supplying granular material, in particular seeds, and a plurality of spray nozzles (7, 14) In a coating and granulation device for granular materials having rubber on the inner surface. or preferably has a polygonal drum (1) lined with synthetic resin; Inside the drum there are one or more spray nozzles connected to a metering pump (3). (7), one or more powder coating devices (9, 10) and another metering pump ( one or more spray nozzles (14) connected to A coating and granulation device for granular materials, characterized in that: 2. The powder coating equipment uses brushes installed on the pipe (9) that exits from one end of the drum (1). The vibrator (9) is equipped with a spray nozzle (7 or 14). ) and distributed over the remaining length of the pipe. 2. Device according to claim 1, characterized in that it has a discharge slit.