SU1479094A1 - Arrangement for loosening and desintegrating lump material - Google Patents

Abstract

The invention relates to the equipment of enterprises of the construction industry, intended for loosening and grinding of frozen pieces of sand, clay, marl, and similar materials with the separation of solid and inducible inclusions. The purpose of the invention is to increase productivity. The device for loosening and grinding the bulk material includes a housing with a loading hopper, a discharge grid 3, the upper part is hinged on the housing, a splitting device in the form of a forcibly rotating toothed roller 4, and its tooth intersects the working surface of the discharge grid 3 with discharge grooves during operation 11. In the housing, on two sides, at the ends of the toothed roll 4, there are discs 5, the planes in which they lie are inclined to the axis of the toothed roll 4, and their intersection lines with plane intersect. The discs 5 have a forced rotation in the direction of the minimum clearance between the smooth cylindrical surface of the toothed roller 4 and the working surface of the discharge grid 3 with a rotation frequency greater than the frequency of rotation of the toothed roller 4. On the case there is an interchangeable safety element 7 on which the lower part is supported by the discharge grid 3, the working surface of which is curved. 2 Il.

Description

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a manual in the form of a forcibly rotating toothed roller 4, and its tooth crosses the working surface of the unloading grid 3, which has unloading grooves 11. In the case, disks 5 are installed on both sides at the ends of the toothed roller 4, and the planes in which they lie are inclined to the axes of the toothed roll 4 and their intersection lines with the horizontal plane intersect. Disks 5 are forced

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The invention relates to the equipment of enterprises of the construction industry, intended for loosening and grinding of frozen pieces of sand, clay, marl, and similar materials with the separation of extraneous hard and unbreakable inclusions. This equipment is generally installed at the beginning of the process line to bring the raw material into a suitable condition for subsequent processing in various machines of this process line.

The purpose of the invention is to increase productivity.

FIG. 1 shows the proposed device for loosening and grinding bulk material; in fig. 2 is a view along arrow A in FIG. 1 (case conventionally not shown).

A device for loosening and grinding bulk material includes a housing 1 with a hopper 2, a discharge grid 3 mounted on it, a toothed roller 4 and disks 5.

The discharge grille 3 is mounted on the housing 1 with the help of a hinge 6. The bottom part rests on the removable safety element 7. The working surface 8 of the discharge grille 3 is curved.

The disks 5 are mounted on the housing 1 from two sides at the ends of the toothed roller 4 with the possibility of forced rotation. The planes in which the disks 5 lie are inclined to the axis of the toothed roller 4, and their intersection lines with the horizontal plane intersect.

The toothed roller 4 has a smooth cylindrical surface 9 and a tooth 10.

The rotation of the toothed roller 4 and the disks 5 is directed from the hopper 2 to the minimum gap between the smooth cylindrical surface 9 and the working surface 8. When the toothed roller 4 rotates, the tooth 10 crosses the working surface 8 of the discharge grid 3 having unloading grooves 11.

rotation in the direction of the minimum clearance between the smooth cylindrical surface of the toothed roller 4 and the working surface of the unloading grid 3 with a rotation frequency greater than the frequency of rotation of the toothed roller 4. On the case there is a replaceable safety element 7 on which the unloading grid 3 is supported, the working surface which is made curvilinear. 2 Il.

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The finished product is discharged from the device by the conveyor 12, the inoperable inclusions are discharged by the conveyor 13.

The curvilinear shape of the working surface 8 provides an extension of the loosening and grinding chamber, its smooth radial contraction. The peculiarity of the loosening and grinding chamber is that its three walls are moving — disks 5 and a smooth cylinder 9 of the toothed roller 4.

The inclination of the disks 5 ensures their increased capacity and constant support of the material in the loosening and grinding chamber, which allows for an increase in productivity. By installing different size replaceable safety elements 7, adjustment of the size of the finished product is achieved.

The device for loosening and grinding the lump material works as follows.

The source material is fed to the loading hopper 2, from where gravity flows under the influence of the natural vibration of the device and the force of gravity into the loosening and grinding chamber. The material is loosened 5 and crushed by impacts against the tooth 10, splits and breaks between the teeth 10 opposite each other and the discharge slots 11, wears off the walls of the loosening and grinding chamber and each other pieces of material.

The crushed material, the particle size of which is smaller than the width of the discharge grooves 11, spills through the discharge grid 3 and falls onto the conveyor 12. Also, a part of the crushed material may spill into the gap between

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discs 5 and the discharge grid 3.

As the size of the piece decreases, the material moves through the loosening chamber and grinding to exit from it due to the friction forces of the disks 5, the smooth cylindrical surface 9 and the movement of the teeth 10. The addition of solid inclusions occurs between the smooth cylindrical surface 9 and the working surface 8 in minimum gap between them. Incomposable inclusions, the size of which is larger than the width of the discharge grooves 11 and smaller than the minimum clearance between the smooth cylindrical surface 9 and the working surface 8, are removed from the loosening and grinding chamber and fall onto the conveyor 13. Incomposable inclusions that are larger than the minimum clearance between the smooth cylindrical surface 9 and the working surface 8 cause deformation of the replaceable safety element 7, which prevents damage to the device. After replacing it, the device can resume operation.

Adjustment of the size of the finished product is achieved through the installation of interchangeable safety elements of various sizes.

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Claims (1)

Invention Formula A device for loosening and grinding a lumpy material, containing a toothed roller and a curvilinear lattice with a curvilinear surface hinged by the upper part on the body and supported by the lower part on an interchangeable safety element, the roller tooth located in the lattice holes, characterized in that , in order to increase productivity, it is equipped with symmetrically mounted on the body one by one on the side of each end of the toothed roller with drive disks, the planes of which are inclined to the axis of the gear rolls, and their intersection lines with the horizontal plane intersect. 0