RU2052234C1 - Installation for processing of poultry dung - Google Patents

Abstract

FIELD: agriculture. SUBSTANCE: installation comprises a drying unit in the form of a pipe. The loading opening of said pipe is connected to a device for crushing dung made in the form of a dispersing ejector. Moist dispersed dung enters the drying unit where its is dehydrated and moves in a granulated form with the flow of gas-air mixture into a cyclone. Here the mixture is divided into granules which accumulate in the finished product container and spent air thrown out into the atmosphere by a fan. EFFECT: improved design. 1 dwg

Description

 The invention relates to agriculture, in particular to production lines used in poultry farms for processing chicken manure to produce marketable products.

 Known production line for processing chicken manure, containing a furnace, conveyor, loading unit, two-way drying drum, cyclone, fan, hopper of the finished product.

 The disadvantage of this production line is the performance limitation due to forced stops of the line for cleaning the drying drum; high energy costs (due to the fact that the drying unit is made in the form of a constantly rotating drum); the complexity of the design and operation of individual nodes of the production line, in particular the drying drum.

 A known production line for processing chicken droppings, which contains: a storage tank for assembling the initial wet product, a conveyor, a furnace, a drying drum, a crusher, a cyclone, a fan, a dust return conveyor, a mixer, a loading conveyor, a container for collecting the finished product.

 However, this chicken manure production line has several disadvantages. An essential of which is the need to rotate the drying drum. Its dimensions and mass are comparatively large and, therefore, large energy inputs are required, and it is also necessary to seal the joints of the rotating flanges of the drying drum and the stationary flanges of the furnace duct.

 In addition, in this production line, the presence of a dust return conveyor and mixer significantly complicates the design of the line and requires increased energy costs. A significant drawback of this production line is also the presence of a crusher for crushing large lumps, which complicates the design, reduces reliability and also leads to an increase in energy consumption.

 The purpose of the invention is the reduction of energy and labor costs, the simplification and reduction of metal consumption, increasing the reliability of operation and, therefore, increasing the productivity of the production line.

 The proposed production line for processing chicken manure, which contains (Fig. 2) a furnace, a storage (averaging) tank for the initial wet chicken manure, a conveyor, a disperser, made in the form of an ejector and installed after the conveyor in front of the drying unit, the drying unit, which is stationary pipe (round, square or rectangular section) with an optimal ratio of the effective diameter of the pipe to its length equal to 1: (10-100), a device for collecting and capturing the finished product (cyclone or a system of cyclones), a fan, a container for collecting the finished product.

The salient features of the proposed production line for processing bird droppings are as follows:
between the conveyor and the drying unit is additionally installed a dispersant made in the form of an ejector;
the drying unit is made in the form of a fixed pipe (round square or rectangular section) with an optimal ratio of the effective diameter of the pipe to its length equal to 1: (10-100).

 Tests have shown that these distinguishing features, in combination with the known features, increase the productivity of the production line, reduce specific energy and labor costs, the stability and reliability of the production line.

 The drawing shows a schematic flow chart of the proposed production line for processing chicken manure.

 It contains a furnace 1, a storage (averaging) tank 2, a conveyor 3, a dispersant 4, a drying unit 5, a cyclone 6, a fan 7, a container for collecting the finished product 8.

 The production line for processing chicken manure works as follows.

 The initial wet chicken droppings from the poultry farm initially enter the accumulation (averaging) tank 2, from where it is fed by conveyor 3 to disperser 4 (ejector) and injected by it into the drying unit 5 (fixed pipe), while gas-heating medium is fed from the furnace 1 to the drying unit. Wet dispersed (finely ground) chicken droppings, getting into the heat-carrier gas stream in the drying unit, are dehydrated to the required residual moisture, for example 5-15% and then in the form of "granules" (formed in the air-gas mixture stream as a result of the so-called "dry granulation" finely dispersed dust compounds in the unit) 0.5-3 mm in size is captured in a cyclone (a system of 2-3 cyclones), from where it enters the finished product through an unloading device and / or dispensers 8.

During pilot trials, about 10 tons of wet (75 ± 5%) chicken droppings were processed. The resulting commercial product was a homogeneous mixture of granules of predominantly spherical shape with a size of 0.5 -2 mm (up to 3 mm) with a moisture content of 10 ± 5% and bulk density of 0.5-0.7 kg / dm ³ . During the tests, the production line worked stably, no sticking of the litter on the walls of the drying unit, burning of the litter, clogging of the unit with the litter was not observed.

Claims (1)

 A PLANT FOR PROCESSING A BIRD'S LITTER containing a drying unit, the loading window of which is conveyed by means of a feeding conveyor to the dropper averaging device, a litter grinding device installed at the outlet of the drying unit, a cyclone with a fan and a container for collecting dry litter, characterized in that the grinding device the litter is made in the form of a dispersing ejector, which is located at the outlet of the feed conveyor, while the drying unit is made in the form of a pipe, loading the window of which is connected to the dispersing ejector.

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