RU223960U1 - BULK FEED MIXER - Google Patents

Abstract

The utility model relates to devices for batch preparation of bulk feed and can be used in agricultural production and the feed industry. The bulk feed mixer contains a conical mixing chamber tapering towards its lower part, a pipe installed in the central part of the mixing chamber with windows in the lower part, an ejector in the form of a truncated cone installed in the upper part of the pipe, the smaller base of which is directed upward, an auger installed in pipe and connected to the drive, loading and unloading pipes. A planetary type gearbox is installed in the upper part of the auger with the possibility of rotating the housing in the direction opposite to the direction of rotation of the auger, and the gearbox housing is connected to a blade-type mixer installed at an angle α to the axis of rotation of the auger, and the discharge pipe is equipped with a damper. By installing the mixers at an angle α to the axis in the direction of rotation, the feed components remain in the active zone of the mixing chamber longer, and therefore intensive mixing occurs, which ensures the required quality of mixing of the feed components and increases the productivity of the installation.

Description

The utility model relates to devices for batch preparation of bulk feed and can be used in agricultural production and the feed industry.

A known mixer [1] includes a mixing chamber in the form of a cylindrical hopper with a truncated conical bottom, designed for accumulating and mixing components. Along the axis of the mixing chamber there is a working element enclosed in a pipe - a screw. Around the pipe there is a mixing spiral element, the lower part of which is fixed to the screw shaft, and the upper part is fixed to the top of the pipe using a movable connection. A dosing feeder is installed at the base of the auger. To load the main component, the mixing chamber is equipped with a loading pipe. The finished product is unloaded through the unloading pipe due to the opening of the valve.

A disadvantage of the known mixer is the uneven mixing of the feed components.

The prototype of the proposed utility model is a bulk feed mixer [2], containing a mixing chamber, pipe, auger, loading and unloading pipes. The mixing chamber is made conical, tapering towards its lower part. At the top, the mixing chamber is equipped with a removable lid. A pipe is installed in the central part of the mixing chamber along its axis of symmetry. There are windows in the lower part of the pipe. In the upper part of the pipe there is an ejector, made in the form of a truncated cone, the smaller base of which is directed upward. The auger is installed in a pipe and connected to a drive located on the removable cover of the mixing chamber. The pipe is made shorter than the length of the internal cavity of the mixing chamber, and the angle between the conical surface of the mixing chamber and the axis of symmetry of the mixer is less than or equal to the angle of friction of bulk feed along the conical surface.

The disadvantage of the prototype is that it does not provide the required quality of mixing feed components and the low productivity of the installation.

The objective of the proposed utility model is to eliminate these shortcomings.

The technical result is to increase the productivity of the installation and ensure the required quality of mixing feed components.

The specified technical result is achieved by the fact that in a bulk feed mixer containing a conical mixing chamber tapering towards its lower part, a pipe installed in the central part of the mixing chamber with windows in the lower part, an ejector in the form of a truncated cone installed in the upper part of the pipe, a smaller the base of which is directed upward, an auger installed in a pipe and connected to the drive, loading and unloading nozzles, according to the useful, a planetary type gearbox is installed in the upper part of the auger with the possibility of rotating the housing in the direction opposite to the direction of rotation of the auger, and the gearbox housing is connected to a paddle mixer type, installed at an angle α to the axis of rotation of the screw, and the discharge pipe is equipped with a damper.

The bulk feed mixer is illustrated with diagrams:

Fig. 1 - general view diagram of a bulk feed mixer.

Fig. 2 - section A-A of the bulk feed mixer.

Fig. 3 - section B-B of the bulk feed mixer.

The bulk feed mixer (Fig. 1) contains a conical mixing chamber 1, tapering to its lower part, a pipe 2 installed in the central part of the mixing chamber 1 with windows 3 in the lower part, an ejector 4 in the form of a truncated cone, installed in the upper part of the pipe 2 , the smaller base of which is directed upward, auger 5 installed in pipe 2 and connected to drive 6, loading 7 and unloading 8 nozzles. In the upper part of the screw 5, a planetary type gearbox 9 is installed with the possibility of rotating the housing in the opposite rotation of the screw 5 (Fig. 2). The gearbox housing 9 is connected by a blade-type stirrer 10, installed at an angle α to the axis of rotation of the screw 5 (Fig. 3). A damper 11 is installed in the discharge pipe 8.

The mixer works as follows. The unloading pipe 8 is first closed with a damper 11. The feed ingredients are loaded to a certain level of the pipe 2 (10...15 cm below the upper end of the pipe). The drive 6 is turned on, which through the gearbox 9 transmits torque to the auger shaft 5. Also, the drive 6 rotates the gearbox housing 9 with a blade-type mixer 10 installed at an angle a to the auger axis in the direction of rotation. The feed components enter pipe 2 through windows 3 made in its lower part. When rotating, the auger 5 captures a portion of the feed components and transports it upward until it reaches the dumper 4 of the pipe 2. From the dumper 4, the feed components fall onto the side conical surfaces of the internal cavity of the mixing chamber 1 and onto the blade-type mixers 10, when This moves down to the base of the mixing chamber 1, and then to the intake part with windows 3 of the pipe 2.

Due to the installation of mixers 10 at an angle α to the screw axis in the direction of rotation, the feed components remain in the active zone of the mixing chamber longer and therefore intensive mixing occurs. Mixing continues until all feed components form a homogeneous mixture.

Then the valve 11 is opened and the finished feed is unloaded from the mixing chamber 1 through the unloading pipe 8.

After unloading the feed from the mixing chamber 1, close the valve 11, load a new portion of the feed components into the mixing chamber 1 and repeat the mixing cycle.

List of used literature

1. Patent RU 2424046. Publ. July 20, 2011, Bulletin. No. 20 - analog.

2. Utility model patent No. 115685 U1 Russian Federation, IPC B01F 7/24. Bulk feed mixer: No. 2012100064/05: application. 01/10/2012: publ. 05/10/2012 / E.S. Zykin; applicant Federal State Budgetary Educational Institution of Higher Professional Education "Ulyanovsk State Agricultural Academy". - prototype.

Claims (1)

A bulk feed mixer containing a conical mixing chamber tapering towards its lower part, a pipe installed in the central part of the mixing chamber with windows in the lower part, an ejector in the form of a truncated cone installed in the upper part of the pipe, the smaller base of which is directed upward, an auger installed in the pipe and connected to the drive, loading and unloading pipes, characterized in that a planetary-type gearbox is installed in the upper part of the auger with the possibility of rotating the housing in the direction opposite to the direction of rotation of the auger, and the gearbox housing is connected to a blade-type mixer installed at an angle α to axis of rotation of the auger, and the discharge pipe is equipped with a damper.