RU2784066C1 - Device for separating manure into fractions - Google Patents

Abstract

FIELD: continuous separation devices.

SUBSTANCE: invention relates to devices for continuous separation into fractions of manure runoff from livestock enterprises. The device for separating manure into fractions contains a housing with loading and unloading nozzles, a filter element enclosed inside the housing with a conveying body in the form of a tape spiral placed in it and connected to a mechanical drive. The loading branch pipe, fixed coaxially to the discharge pipeline, is equipped with a filter installed at an angle to the housing, inside which a grooved filter element is located, consisting of inclined and horizontal surfaces. Moreover, the horizontal surface of the filter element covers the lower part of the tape spiral of the transporting body. At the end of the pressure pipeline there is an ejector with a drain pipe and a suction pipeline connected to a filtrate collector located in the lower part of the housing.

EFFECT: invention provides reduction of humidity of the solid fraction of manure runoff by increasing the time of gravity filtering of the thickened fraction.

1 cl, 2 dwg

Description

The invention relates to agriculture and can be used in the processing of manure from livestock enterprises.

A device is known for separating organic fertilizers, mainly manure, into solid and liquid fractions, containing an auger with a perforated casing, the last turn of the auger being separated from its main part and installed in a closed casing, and a mesh is installed between the perforated part of the casing and the auger [1].

The disadvantage of the known design is that this scheme is designed for dehydration of semi-liquid manure from 80% to 92%, and, as a result, has a low efficiency of the separation process into fractions of high moisture manure - up to 98% (manure runoff).

A well-known design of a device for separating manure into fractions, containing a housing with inlet and outlet nozzles, enclosed inside the housing filter element, made in the form of a spring, placed in it and associated with a mechanical drive conveying body in the form of a ribbon spiral [2].

This device is the closest in technical essence and the achieved result.

The disadvantage of the known design is the high humidity of the separated solid fraction of manure, as a result of which the solid fraction requires additional dehydration in order to meet sanitary and hygienic requirements, be suitable for biothermal disinfection and further use as a valuable organic fertilizer.

The purpose of the claimed invention is to reduce the moisture content of the solid fraction of manure.

This goal is achieved by the fact that the device for separating manure into fractions contains a housing with loading and unloading nozzles, a trough filter element enclosed inside the housing with a conveying body in the form of a tape spiral placed in it and connected with a mechanical drive. The loading pipe, fixed coaxially to the pressure pipeline, is equipped with a filter installed at an angle to the housing, inside which a grooved filter element is located, consisting of inclined and horizontal surfaces, the latter covering the lower part of the tape spiral of the transporting body, while at the end of the pressure pipeline there is an ejector with a drain branch pipe and with a suction pipeline connected to a filtrate collector located in the lower part of the housing.

In FIG. 1 shows a general view of the device, Fig. 2 - section A-A of the device.

The device for separating manure into fractions comprises a housing 1 with a loading 2 and an unloading 3 nozzles, a grooved filter element 4 enclosed inside the housing 1 with a conveying body 6 placed in it and connected to a mechanical drive 5 in the form of a tape spiral. The loading pipe 2, fixed coaxially to the pressure pipeline 7, is equipped with a filter 8, installed at an angle to the housing 1, inside which a grooved filter element 4 is placed, consisting of an inclined and horizontal surfaces, the latter covering the lower part of the tape spiral of the transporting body, while at the end of the pressure pipeline 7 there is an ejector 9 with a drain pipe 10 and a suction pipeline 11 connected to a filtrate collector 12 located in the lower part of the housing 1.

A device for separating manure into fractions works as follows.

The initial suspension of liquid manure under pressure through the loading pipe 2 enters the perforated surface of the filter 8, where the solid fraction of the manure is retained and slides onto the inclined grooved surface of the filter element 4. The filtrate that has passed through the perforations of the filter 8 through the pressure pipeline enters the zone of the ejector 9, where by increasing the flow rate through the nozzle of the ejector 9, the mass of the filtrate is sucked in from the filtrate collector 12 through the suction pipe 11 and is removed from the device through the drain pipe 10. At the same time, the condensed mass of manure runoff partially dehydrated on the filter 8 enters the groove inclined surface of the filter element 4, is dehydrated due to gravitational forces and slides along the inclined surface onto the horizontal surface of the groove filter element 4, then is captured by the turns of the tape spiral of the transporting body 6, rotating from the drive mechanism 5 and is dehydrated already on the horizontal surface of the trough filter element 4. After that, the dehydrated solid fraction of manure runoff is removed from the device by the transporting body 6 through the unloading pipe 3. The filtrate that has passed through the perforations of the inclined and horizontal surfaces of the trough filter element 4 is drained into filtrate collector 12, from where it is discharged from the device through the suction pipe 11 through the ejector 9 through the drain pipe 10.

Due to the fact that the mass of manure is filtered first on the filter surface, and then lingers on the inclined and horizontal surfaces of the filter element, the time it stays in the gravity filtration zone increases, thereby increasing the amount of released free moisture and reducing the humidity of the solid fraction of manure. After that, the solid fraction of manure is suitable for biothermal disinfection and disposal as a valuable organic fertilizer.

Sources of information:

1. A.S. 372246 USSR, MKI ³ A 01 C 3/00. Device for the separation of organic fertilizers / S.D. Smetnev, A.I. Zhirnov. - No. 1308381/30-15; dec. 11/20/1969; publ. 03/01/1973, Bull. No. 13. - 2 p.: ill.

2. A.s. 1371557 USSR, MKI ³ A 01 C 3/00. Device for separating manure into fractions / A.A. Kovalev, V.S. Slenko, V.M. Klyachev. - No. 386551/30-15; dec. 03/07/85; publ. 07.02.88, Bull. No. 5. - 2 p.: ill. (prototype).

Claims (1)

A device for separating manure into fractions, comprising a housing with loading and unloading nozzles, a filter element enclosed inside the casing with a conveying body in the form of a tape spiral placed in it and connected with a mechanical drive, characterized in that the loading nozzle, fixed coaxially to the pressure pipeline, is equipped with a filter installed at an angle to the housing, inside which a grooved filter element is located, consisting of inclined and horizontal surfaces, the latter covering the lower part of the tape spiral of the transporting body, while at the end of the pressure pipeline there is an ejector with a drain pipe and a suction pipeline connected to filtrate collector located in the lower part of the body.

Images