RU2374814C1 - System for removal, processing and recycling of liquid manure - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: system consists of scraper conveyor, channel, pumps, two methane-tanks, hopper, storage, aggregate for manure intake from storage. Channel is made with slope to the side of hopper. Two pumps with pipelines are installed in hopper. One of pipelines has splitter for liquid manure fraction supply to the beginning of channel from hopper and flushing of heavy manure fraction into hopper. The second pump is intended for manure pumping to methane-tank. In lower part of one methane-tank there is a pipeline for discharge of partially processed manure into another methane-tank. In lower part of each methane-tank there is a heating device, which provides for manure heating, and in upper part there are nozzles for grinding of manure crust in upper part of methane-tank due to liquid manure fraction. Methane-tanks in upper part are arranged with gasholders for gas collection and its further transportation. Gasholders are arranged as corrugated and are connected to each other. Storage bottom is coated with rubberised cloth.

EFFECT: system makes it possible to improve efficiency of manure processing, to create comfortable conditions for animals keeping and work of service personnel, to introduce efficient system of manure discharge, to produce biogas, to improve quality of biological fertilisers, to improve environmental state at stock-farm and complex.

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Description

The invention relates to agriculture and is intended to improve animal welfare, improve the quality of biological fertilizers, obtain biogas and improve the ecological situation on the farm and the complex.

A device for processing litter manure into fertilizers and biogas [RU 2066305 C1, 6 C02F 11/04, 05/26/1993], including a digester, blower, grab for loading and unloading.

The disadvantage of this device is that the loading of the digester with manure and its unloading is carried out by a grab.

The closest analogue is a biogas plant for processing manure [RU 2286038 C2, 7 А01С 3/02, 05/11/2004], which includes a receiving tank, a water seal, a gas cap, a pressure gauge, a heating and gas extraction device. The receiving tank is lined with a cover made of an elastic waterproof material with a reinforced bottom and a rigidly fixed upper edge. The reinforced bottom of the cover is connected with a lifting mechanism and rests on a grate, under which there is a heating device in a water jacket. The sealant is equipped with a discharge pipe, the end of which is above the level of the discharge platform.

The disadvantage of this installation is that for loading and unloading of biomass it is necessary to open the digester, removing the cap. Another disadvantage is that the digester is located on the surface of the soil, which entails a large expenditure of energy for heating biomass in winter.

The objective of the present invention is to increase the efficiency of manure processing, creating comfortable conditions for keeping animals and staff, as well as the introduction of an effective system for unloading manure, obtaining biogas, improving the quality of biological fertilizers, improving the environmental situation at the livestock farm and the complex.

The solution to this problem is achieved by the fact that the system for removing, processing and disposing of liquid manure consists of a scraper conveyor, a channel, a hopper, a piston pump, a pipeline for removing manure, two digesters, and a storage for processed manure. In this case, the digesters are cylindrical, in the upper part of which corrugated gas holders are installed for gas accumulation. At the bottom of the digesters are devices designed to heat manure. It is intended to break the crust formed on the surface of the manure. The bottom of the storage for processed manure is made of rubberized fabric.

Concrete examples of the design are advantageous in which:

- the digester is buried,

- digesters made in sufficient volume to ensure the capacity of a 12-day exit of manure from the farm,

- nozzles for breaking the crust are located below the surface of the manure in the digester.

The invention is illustrated by drawings, in which Fig. 1 shows a system for removing, processing and disposing of liquid manure, in Fig. 2 is a transverse section of a digester, in Fig. 3 is a section of a channel of a livestock building.

The proposed system for the removal, processing and disposal of liquid manure is intended for use with the livestock building 1 (Fig. 1), in which the animal keeping area 2. The scraper conveyor 3 is also located in the livestock building 1 for transporting manure from the animal holding area 2 and feeding it in channel 4. Channel 4 is designed to direct manure from the scraper conveyor 3 to the hopper 5.

Channel 4 is made with an inclination to the hopper 5. Two pumps are installed in the hopper 5. The piston pump 6 is designed to supply the liquid fraction of manure through the pipeline 7 to the beginning of the channel 4. The piston pump 8 is designed to remove manure from the hopper 5 through the pipe 9 and direct it to the digester 10. A corrugated gas holder 11 is provided in the upper part of the digester 10, nozzles 12, mounted on the frame 13, are designed to break the crust formed on the surface of the manure of the digester 10. Pipeline 14 is designed to supply hot water to the heating device 15. In the lower part of the digester 10 is made pipe 16 for coll dew of partially processed manure from digester 10 to digester 17. Pump 18 is used to pump manure through pipeline 19 to storage 20. Pump 21 is used to feed the liquid fraction of manure from the lower part of digester 17 to the upper via pipe 22. Pump 23 is designed to pump liquid fraction manure from the lower part of the digester 10 to the upper one through the pipe 24. The pipe 25 is designed to supply hot water to the heating device 26. The nozzles 27 mounted on the frame 28 are designed to break the crust forming I metatenka manure surface 17. The conduit 7 is formed with the divider 29 at the end, preventing the splashing of the liquid fraction of manure on the wall of the livestock accommodation 1. There are transport means 30 adapted for aggregation with a tank 31 for the transport of manure on the field. Unit 32 is designed to fill tank 31 with manure from storage 20. A unit 33 is provided for subsoil spreading of manure on the field. The bottom of the storage 20 is covered with a rubberized fabric 34. Corrugated gas holders 11 and 35 are interconnected by a gas pipeline 36.

The system of disposal, processing and disposal of liquid manure is as follows.

In the livestock building 1 (FIG. 1), solid and liquid manure fractions are fed from the animal keeping area 2 to the channel 4 by a piston pump 6. The liquid manure fraction is fed through the pipeline 7 to the channel 4 at the beginning of the channel 4, thereby washing away the heavy manure fraction into the hopper 5. Pump 8 through the pipeline 9, the manure is pumped into the digester 10 (figure 2). Filling of digester 10 is performed within 12 days. The pipeline 14 serves hot water, which enters the heating device 15, thereby heating the manure to a temperature of 33-54 ° C.

Anaerobic fermentation of manure lasts 10-12 days at a temperature of 33-54 ° C. With these parameters, the greatest amount of released gas (methane) is achieved.

The evolved gas rises and accumulates in the corrugated gas tank 11 and the corrugated gas tank 35, then through the gas pipeline 36 is directed to the hydraulic fracturing (gas distribution point).

Through the pipeline 24, the manure is pumped by pump 23 to the nozzles 12 located on the frame 13, thereby destroying the resulting crust on the surface of the manure.

The daily portion of manure coming from the livestock building on day 13 via pipeline 9 to the digester 10 displaces, according to the principle of communicating vessels, part of the manure through piping 16 to the digester 17. The process of processing manure in digester 17 is similar to the process in the digester 10. Filling the digester 17 produce in 12 days. The pipeline 25 serves hot water to a heating device 26 for heating manure to a temperature of 33-54 ° C. Through the pipe 22, the manure is pumped by pump 21 to the nozzles 27 located on the frame 28, thereby crushing the crust formed on the surface of the manure.

On the 25th day, a portion of the processed manure, equal in volume to daily allocation of it from the livestock building 1, is pumped through a pipe 19 to a storage facility 20 through a pipe 19.

Unit 32 make filling the tank 31 with manure from storage 20. Vehicle 30 transport the tank 31 in the field. Unit 33 produce subsoil application of manure on the field.

Thus, the present invention improves the efficiency of manure processing, creates comfortable conditions for keeping animals and staff, as well as introduces an effective system for unloading manure, obtain biogas, improve the quality of biological fertilizers, and improve the ecological situation at the livestock farm and the complex.

Information sources

1. RU 2066305 C1, 6 C02F 11/04, 05/26/1993.

2. RU 2286038 C2, 7 A01C 3/02, 05/11/2004.

Claims (1)

The system for removal, processing and disposal of liquid manure, consisting of a scraper conveyor, a channel, pumps, two digesters, a hopper, a storage, an aggregate for collecting manure from the storage, and the channel is inclined towards the hopper, two pumps with pipelines are installed in the hopper, moreover one of the pipelines has a divider for feeding the liquid manure fraction from the hopper to the beginning of the channel and flushing the heavy manure fraction into the hopper, and the second pump is designed to pump manure into the digester, in the lower part of one digester a pipeline was made to dump partially processed manure into another digester, in addition, a heating device was installed in the lower part of each digester to heat the manure, and nozzles were installed in the upper part for crushing the crust of manure in the upper part of the digester, due to the liquid fraction of manure, the digester in the upper parts are made with gas holders for collecting gas and its further transportation, while gas holders are corrugated and interconnected, and the bottom of the storage is covered with rubberized fabric New.

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