RU180118U1 - Bulk material mixer - Google Patents

Abstract

The mixer for bulk materials consists of a main mixing chamber, a drive shaft with two successively active mixing bodies mounted on it, the first working body is a removable paddle mixer fixed by a pin on the drive shaft in the form of a sleeve with L-shaped blades mounted on it, made from a round bar with a diameter of 4 ... 10 mm, in an amount of 4 to 10, and rotated relative to the axis of rotation by an angle β = 5 ... 15 °, the front free edge of which is attached to a flat vertical scraper racks mounted radially on the sleeve at an angle ϕ = 5 ... 15 ° relative to the end wall of the mixing chamber, and the second working body is a removable two-way spiral conveyor, mounted on the drive shaft in the form of a sleeve, fixed to the shaft with a pin mounted directly behind the first working body with L-shaped blades, after the spiral-shaped conveyor, an unloading tray is located.

Description

The utility model relates to agriculture, in particular to devices for preparing feed on livestock farms and complexes.

A device for adding additives to dry feed (ed. St. No. 2547467, IPC A23N 17/00, BI No. 10 04/10/2015), consisting of a mixing chamber, above which there is a preliminary mixing chamber with a loading hatch and 4-6 bins dispensers, and under the mixing chamber there is an inclined screw conveyor with a mixing screw.

A vertical mixing auger is installed in the mixing chamber, the upper part of which is single-entry, and the lower part is dual-input. Also in the upper and middle part of the screw there are L-shaped blades of circular cross section. The mixing chamber of the preliminary mixing is made of rectangular cross-section, inside of which flat chevron-shaped blinds are attached.

Dosing hoppers have paddle drums having from 8 to 30 flat radial blades, and a casing with rectangular slit-like discharge openings covered by interchangeable overlays.

The continuous mixer is made in the form of a spiral-vane conveyor. The working body is a mixing auger, which has three structural and technological zones (receiving components, transportation and unloading). In the reception area of the components there is a single-feed auger with an increasing pitch of the spiral. In the transportation zone there is a bar spiral with flat blades. The third zone has a rod spiral with a baffle plate and radial flat blades.

The disadvantages of the device for adding additives to dry feed include the fact that when the mixer is operated on materials with high abrasive properties (in the case of the addition of salt, chalk and other mineral additives), the working surfaces wear out quickly, and with thin structural elements they will fail quickly .

A device is known for introducing liquid additives into dry feeds (ed. St. No. 2374837 MPK А01К 5/02, BI No. 34 09/10/2009). It consists of a hopper, a dry feed dispenser, two tanks for liquid additives with valves, pipelines and throwers of liquid additives, an unloading tray. The dry feed dispenser is made in the form of a spiral conveyor with U-shaped blades of circular cross section in the discharge zone, under which there is a grid with rectangular holes formed from intersecting and fastened together round rods, the upper row of rods being located across the course of the U-shaped blades. The pre-mixing chamber is a vertical container of rectangular cross-section, into which a sprayed stream of liquid additives from throwers is supplied from two sides. The main mixing chamber is made in the form of a cylindrical tank in which a rotating vertical paddle mixer is installed.

The disadvantages of this device for mixing dry feed and liquid additives can be attributed to the fact that when the mixer is operated on materials with high abrasive properties (in the case of salt, chalk and other mineral additives), the working surfaces wear out quickly, and with thin structural elements they will exit faster out of service. The presence of an adjustment flap at the discharge opening can lead to filling of the mixing chamber with material and failure of the spiral screw drive.

Of the closest in technical essence (prototype) is a device for mixing dry feed and dry additives (ed. St. No. 2616641 IPC A23N 17/00, BI No. 11 04/18/2017).

A device for mixing dry feed and dry additives consists of a hopper for dry feed, in which there is a discharge screw made in the form of a round spiral mounted on a shaft, and in the discharge area the discharge screw is made in the form of U-shaped circular blades, also fixed on a shaft made of a rod with a diameter of 4 ... 10 mm and rotated relative to the axis of rotation by an angle α = 5 ... 15 ° along the spiral turns in the hopper, while under the U-shaped blades of circular cross section there is a grid made in the form of a plate with a straight punching holes with a width across the screw shaft 15 ... 30 mm wide and 30 ... 70 mm long with jumpers 2 ... 4 mm, in parallel with the dry feed hopper there is a multicomponent dry additive hopper, having two to seven sections on a common shaft with vane drums with flat radial blades in the amount of 6 ... 20 pcs. and unloading holes in the form of slots overlapped by the adjustment flaps, while under all these bins there is a pre-mixing chamber, under which there is a main mixing chamber, which is a cylinder, along the axis of which two successive active mixing working elements are mounted on the drive shaft, the first the working body is a U-shaped blade made of a round bar with a diameter of 4 ... 10 mm, in an amount of 4 to 10, mounted on a shaft and rotated are smaller relative to the axis of rotation by an angle β = 5 ... 15 °, and the second working body, designed for mixing and unloading, and which is a two-way spiral conveyor, also mounted on the shaft directly behind the first working body with U-shaped blades, is arranged after the spiral conveyor unloading tray.

The disadvantage is that when the mixer of the specified device for mixing dry feed and dry additives on materials with high abrasive properties (in the case of salt, chalk and other mineral additives) work surfaces wear out quickly. Small cross sections of the working bodies in the presence of abrasive particles quickly fail due to abrasive wear and require regular replacement. It is possible for material to stick to the end wall of the main mixing chamber.

The claimed invention is aimed at eliminating the above-mentioned disadvantages of the known device. From its use, the following result can be obtained: obtaining a dry mixture depending on a given recipe, high quality mixing of feed components, ease of construction, low energy consumption of the mixture, the ability to quickly replace the mixer.

Graphic materials.

In FIG. 1 shows a mixer for bulk materials.

The specified technical effect is achieved through the use of a mixer for bulk materials. The mixer for bulk materials consists of a main mixing chamber 1, a drive shaft 2 with two successively active mixing bodies mounted on it, the first working body is a removable paddle mixer fixed by a pin 3 on the drive shaft 2 in the form of a sleeve 4 with a fixed G -shaped blades 5 made of a round bar with a diameter of 4 ... 10 mm, in an amount of 4 to 10, and rotated relative to the axis of rotation by an angle β = 5 ... 15 °, the front free edge of which is attached to the pl vertical scraper racks 6 mounted radially on the sleeve 4 at an angle ϕ = 5 ... 15 ° relative to the end wall of the mixing chamber 7, and the second working body is a removable two-way spiral conveyor 8, mounted on the drive shaft 2 in the form of a sleeve 9, fixed on the shaft with a pin 10, mounted directly behind the first working body with L-shaped blades 5, after the spiral-shaped conveyor 8, an unloading tray 11 is located.

The operation of the mixer for bulk materials is as follows: the mixture enters the main mixing chamber 1, while the L-shaped blades of circular cross section 6 provide mixing of the components and due to their accumulation, the content of additives in the mixture is averaged. The presence of rotation of the L-shaped blades of circular cross-section 6 provides a displacement of the mixture in the area of the spiral conveyor 9, which captures the mixture, further mixes and moves to the unloading tray 11. Rack-cleaners 6 provide the removal of material from the end wall, reducing friction and sticking of the mixture to the end walls of the mixing chamber 8.

Claims (1)

A mixer for bulk materials, consisting of a main mixing chamber, a drive shaft with two successively active mixing bodies mounted on it, characterized in that the first working body is a removable paddle mixer fixed by a pin on the drive shaft in the form of a sleeve with a fixed G -shaped blades made of a round bar with a diameter of 4 ... 10 mm, in an amount of 4 to 10, and rotated relative to the axis of rotation by an angle β = 5 ... 15 °, the front free edge of the cat rykh is attached to flat scraper racks mounted radially on the sleeve at an angle ϕ = 15 ... 45 ° relative to the end wall of the mixing chamber, and the second working body is a removable two-way spiral conveyor, mounted on the sleeve, fixed on the shaft with a pin mounted directly behind the first working body with L-shaped blades.

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