SU959814A1 - Apparatus for preparing liquid fertilizers - Google Patents

Description

(54) DEVICE FOR PREPARATION OF LIQUID FERTILIZER

one

The invention relates to apparatuses for the preparation of liquid fertilizers and may find application in agriculture, chemical, construction, food and other industries.

A device is known that contains paddled mixing organs with a drive, a container, and connections for loading solid reagents, supplying liquid and sponge 1.

However, the quality of fertilizers prepared in such a device is low. This is explained by the fact that the solid particles in them only move along simple closed trajectories with a relatively low speed without active influence on them of high energies. As a result, liquid fertilizers, which are suspensions, are unstable.

During pumping at low speeds and storage in tanks, the solid phase forms precipitates, the quality of the fertilizers deteriorates, and congestion forms in the pipelines.

It is also known a device comprising a housing, a mixing body with a drive.

made in the form of two cones mounted coaxially on the shaft, and material supply nozzles, one of which is placed in the cavity of the inner cone 2. However, this device also does not provide sufficient intensity of movement and the required quality of the finished product suitable for long-term storage.

The purpose of the invention is to improve the quality of the finished product and intensify the process.

The goal is achieved by the fact that in the device for the preparation of mixtures, comprising a housing, a mixing body with a drive, made in the form of two

15 coaxially mounted on the shaft of the cones, and the supply pipes of materials, one of which is placed in the cavity of the inner cone, the cones are made truncated and placed on a horizontal shaft, with

20 this is their large base directed in opposite directions, and the inner cone is made of mesh.

The drawing schematically shows a General view of the proposed device, a longitudinal section.

The device comprises a housing 1, a shaft 2, a rack-mixing body, made in the form of two truncated cones 3 and 4. In this case, the cone 3 is made of sheet material, and the cone 4 is made of a grid.

The casing has a branch pipe 5 for loading solid fertilizers, a branch pipe 6 for supplying liquid, a drain branch pipe 7 and a pocket for collecting large inclusions 8. A branch pipe for supplying liquid 6 is installed under the pocket for collecting large inclusions 8 and is separated from it with a net 9. The pocket is equipped with a lid 10. The bottom And the housing 1 is made parallel forming a cone 3.

The device works as follows.

Fluid into the device is fed through pipe 6, and solid fertilizers through pipe 5 into the internal cavity of the cone 4. When the shaft 2 rotates, solid fertilizers are pressed by centrifugal forces to the internal surface of the cone 4 and with each turn of the shaft, they collide with the liquid. In this case, solid particles are displaced along the axis of the cone and the fluids are continuously filtered through them. The solids are also ground due to their friction on the net. Passing the cone 4, undissolved particles fall on the inner surface of the cone 3. Under the action of centrifugal forces and molecular adhesion forces on the inner and outer surfaces of the cone 3, annular fluid layers are formed, moving along the radius and along the cone with variable speeds. As a result of the collisions of particles, their friction against the surfaces of the cones and between themselves, as well as the active circulation of fluid with variable speeds, intense grinding and dissolution of solid particles occurs.

Thus, the treatment is carried out in two stages. Solid fertilizers on the inner cone 4 are dispersed and dissolved, and on the outer cone 3 the solution is homogenized and averaged. Making cones with opposite taper ensures the circulation of fluid throughout the volume.

The largest particles, as well as extraneous inclusions, are collected in pocket 8. Due to the location of the nozzle 6 under the pocket, the liquid enters the body 1 through solid particles, facilitating their

dissolving.

Solid insoluble particles are removed from the pocket with the help of a lid 10. The prepared solution is discharged through the nozzle 7. The proposed device allows to significantly increase the speed of rotation to

forms on the surfaces of adhesive layers, which contributes to an increase in the intensity and quality of mixing.

Claims (2)

Invention Formula A device for the preparation of liquid fertilizers, comprising a housing, a mixing body with an actuator, made in the form of two cones mounted coaxially on shaft 5, and materials supply pipes, one of which is placed in the cavity of the inner cone, characterized in that, in order to improve the quality of the finished product and process intensification, the cones are made truncated and placed on a horizontal shaft with their large bases pointing in opposite directions, and the internal cone is made mesh. 5 Sources of information taken into account during the examination 1.Pozin M.E. Mineral Technologists salts. “Chemistry, 1974, p. 11, p. 1391. 2. US patent No. 3043570, cl. 259-96, 1962.