RU192090U1 - Granulating auger press for feed mixtures with grass meal - Google Patents

Abstract

The utility model relates to the field of production of granulated feeds based on grass meal for farm animals and can be used in the development of granulating screw presses. The proposed granular screw press for feed mixtures with grass meal allows to improve the quality of the obtained granules from feed mixtures with grass meal by eliminating overheating of the granulated feed, simplify the design, reduce specific energy costs and provide ease of cleaning and maintenance. 6 ill.

Description

The utility model relates to the field of production of granulated feeds based on grass meal for farm animals, and can be used in the development of granulating screw presses.

Known press granulator (RU 2479195 C1, A01F 15/00, 04/20/2013) containing a hopper, a matrix made in the form of a monolithic disk with staggered cells having straight cutting edges forming a hexagon, rollers and cutting knife, with this roller is made in the form of a pressing screw having a winding with decreasing pitch to the bottom [1].

Known granulating auger press (RU 2503537 C1, B29B 9/06, 01/10/2014) containing a screw and a press tool with multi-channel forming channels, the axes of which are located at an angle of 9-16 ° to the axis of the screw [2].

A granular screw press is known (RU 2510745 C2, B29B 9/06, 04/10/2014), comprising a housing, a screw and a multi-channel press tool, on the inner surface of which facing the mass flow, forming channels are made with tapering lead-in parts. The tapered inlet parts of the peripheral forming channels located in the recess of the multichannel press tool in the transitional part between the inner surface of the housing and the multichannel press tool form a complex geometric surface [3].

Known fanless screw press (RU 2516659 C2, B28B 3/22, B29B 9/10, B29C 43/34, 05/20/2014), which consists of a housing containing a sleeve located in the housing with trapezoidal reefs with a narrow base outward and filled with elastic liners on its inner surface, a screw and a multi-channel press tool [4].

The disadvantage of these granulating screw presses is the complexity of the design of the press tool and overheating of the granulated feed during compression, which is unacceptable when forming granules from feed mixtures with grass meal. In addition, existing structures are difficult to maintain and operate.

The design of the granulating screw press for feed mixtures with grass meal is based on the task of improving the quality of the obtained granules from feed mixtures with grass meal by eliminating overheating of the granulated feed, simplifying the design, reducing unit energy costs and ensuring ease of cleaning and maintenance.

This is achieved by the fact that the granulating screw press for feed mixtures with grass meal contains a frame, a storage hopper, a screw with variable pitch winding, a pin, a drive, a deck and a flat matrix with staggered holes with an inlet conical, sealing cylindrical and outlet conical sections . In this case, the deck is made of two sections and collapsible, with the first deck section made in the form of a closed tray with a smooth inner surface and a decreasing wall height from entrance to exit, the second deck section is cylindrical with longitudinal grooves on the inner surface formed by connecting rods of circular cross section.

The implementation of the pressing screw with winding of variable pitch, two-section deck and a flat matrix allows you to move the feed mixture with grass meal, create the necessary pressure for compaction and molding of the granules and provide reliable pressing while reducing the pressing force of the screw and the temperature of the granules.

The essence of the utility model is illustrated by drawings, which show a granulating screw press for feed mixtures with grass meal and its working bodies:

FIG. 1 - granulating screw press for feed mixtures with grass meal, side view;

FIG. 2 is a matrix, a front view along A in FIG. one;

FIG. 3 shows a cross-sectional matrix along BB in FIG. 2;

FIG. 4 - matrix in isometry;

FIG. 5 - the second cylindrical part of the deck in section along BB in FIG. one;

FIG. 6 - the second cylindrical part of the deck in isometry.

The granulating screw press for feed mixtures with grass meal contains a frame 1, a storage hopper 2, a screw 3 with variable pitch winding, a pin 4, a drive 5, a flat matrix 6 and a deck. In this case, the deck is made of two sections and collapsible with the possibility of disassembling into two separate sections for cleaning and maintenance. Moreover, the first section of the deck 7 is made in the form of a closed tray with a smooth inner surface and a decreasing wall height from entrance to exit, the second section of the deck 8 is made cylindrical with longitudinal grooves on the inner surface formed by connecting rods of circular cross section.

A granulating screw press for feed mixtures with grass meal works as follows. The feed mixture with grass meal is fed into the storage hopper 2, from where it is coiled by screwing the screw 3 into the first section of deck 7, where it is evenly distributed in the inter-turn space of the variable-pitch screw and pre-compressed. Next, the compressed mixture is fed into the second section of deck 8, where it is compressed with even greater force and moved to the matrix 6. The lateral side of the last turn of the screw presses the compressed mixture first into the conical and then into the cylindrical section of the matrix hole, where the granules are formed. The mixture that has not passed through the holes of the matrix with counter-pressure is moved into the counter-passage of the screw along the longitudinal grooves of the deck and introduced into the tray part, where it is redistributed and again fed through the screw to the matrix. The obtained granules are removed through the exit conical sections of the matrix holes, after which they are broken off with a rotating pin, without covering the outer plane of the matrix.

The proposed granular screw press for feed mixtures with grass meal allows to improve the quality of the obtained granules from feed mixtures with grass meal by eliminating overheating of the granulated feed, simplify the design, reduce specific energy costs and provide ease of cleaning and maintenance.

Information sources

1. RU 2479195 C1, A01F 15/00, 04/20/2013. Press granulator.

2. RU 2503537 C1, B29B 9/06, 01/10/2014. Granulating screw press for forming catalyst pastes.

3. RU 2510745 C2, B29B 9/06, 04/10/2014. Granulating screw press.

4. RU 2516659 C2, B28B 3/22, B29B 9/10, B29C 43/34, 05.20.2014. Granulating screw press.

Claims (1)

A granulating screw press for feed mixtures with grass meal, comprising a frame, a storage hopper, a screw with variable pitch winding, a pin, a drive, a deck and a flat matrix with staggered holes with an inlet conical, sealing cylindrical and outlet conical sections, characterized in that the deck is made of two sections and collapsible, while the first deck section is made in the form of a closed tray with a smooth inner surface and a decreasing wall height from entrance to exit, the second deck section in polyene cylindrical with longitudinal grooves on the inner surface formed by connecting rods of circular cross section.

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