SU1699965A1 - Method of cleaning surfaces of vacuum-filter sectors of deposits at dressing plants - Google Patents

Abstract

The invention relates to animal husbandry, in particular to the disposal of manure. The purpose of the invention is to increase the efficiency of the manure fermentation process. The plant for the treatment of manure and the production of biogas contains a reactor with thermally insulated walls, a mixer 11, an inlet 4 and an outlet 5 nozzles, a pipeline 6 for biogas removal. New in the installation is the design of the reactor, in the internal cavity of which the longitudinal trays are installed with a bias in opposite directions. At the bottom of the trays installed bypass tubes 8, which provide a cascade reciprocating movement of the working mass and the level of liquid manure in the tray. The installation is equipped with a device for disinfecting and grinding the mass, made in the form of an apparatus 14 of the vortex layer, and the mixer is installed at the inlet nozzle 4 of the reactor and equipped with nozzles 12 and 13 for introducing cultural microorganisms and part of the fermented mass into the mixer. 2 Il.

Description

The invention relates to agriculture, in particular to devices for processing manure and producing biogas for further use in production.

The purpose of the invention is to increase the efficiency of the manure fermentation process.

FIG. 1 shows the installation, a longitudinal section; in fig. 2 is a section A-A in FIG. one.

The installation includes a reactor 1, the walls 2 of which are provided with an annular channel (jacket) 3 for heat carrier, an inlet 4 for supplying the initial mass, an outlet 5 for removing the fermented mass, a pipeline 6 for biogas removal. In the cavity of the reactor, parallel to each other, trays 7 are installed with a bias in which the mass moves by gravity, and an overflow tube 8 is provided at the ends of the trays, which provides a constant level of mass in the tray and cascade reciprocating it. The trays are installed with a gap of 9 relative to each other for biogas removal and have transverse projections 10, which ensure the turbulent mixing of the mass in the process of its movement through the trays. In addition, the installation contains a mixer 11 mounted on

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the inlet 4, with the nozzle 12 for feeding the microorganism culture into the mixer and the nozzle 13 for feeding part of the fermented mass, while the mixer is equipped with a tap to remove sediment. A device made in the video camera 14 of the vortex layer communicated with the mixer 11 was used to disinfect and grind the mass.

The outlet 5 for removing the fermented mass is made in the form of a hydraulic shutter 15, in the lower part of which a valve is provided for periodically removing sediment. The gas formed during the fermentation process is discharged through the 6 B gas storage tank (not shown). The feed to the annular channel 3 of the coolant is carried out through the pipe 16. The mixer 11 is made in the form of two coaxially arranged pipes, the space between which forms the displacement chamber, communicated in the upper part with the inlet pipe 4 of the reactor vessel. The known apparatus of the vortex layer is mounted on the inlet nozzle of the mixer and contains a working chamber with grinding elements (needles) rotating under the action of el. magnetic field generated by el. winding located coaxially working chamber (not shown). The transverse protrusions 10 are sequentially arranged along the length of each tray, made in the form of surfaces having a parabolic shape in cross section. The protrusions 10 are made with a smaller height than the bypass tubes 8, which have a height smaller than the gap between adjacent trays. The height of the tubes is usually chosen equal to the predetermined thickness of the layer of the processed mass moving along the tray, which ensures uniform processing (with a given mass layer during its cascade reciprocating movement along the trays.

The installation works as follows.

To ensure safety, the reactor, gas pipelines and gas tank are filled with flue gases or carbon dioxide before starting work, and coolant is fed to the annular channel 3 of the jacket through pipe 16 to heat the reactor. The initial mass (manure) under pressure enters the vortex layer apparatus 14, where it is ground by the elements of the electromagnetic field, crushed, decontaminated and sent to the mixer 11 to mix with the culture of microorganisms entering through the branch pipe 12 and with part of the fermented mass entering

repeatedly from the reactor through nozzle 13. In the mixer chamber 11, the entire incoming mass is randomly mixed, rises to its upper part and goes to the upper

Tray 7 of the reactor, the sediment from the mixer (stones, sand, etc.) is periodically removed through the lower discharge pipe.

As a result of pretreatment of the initial mass in the apparatus 14 of the vortex layer and the mixer 11, its digestion begins immediately and the incubation period is practically absent. Then the mass is successively moved by gravity from the upper tray installed with a slight bias towards its movement to the lower located trays through the overflow tubes 8. In the process of moving through the trays, the mass flows over transverse projections 10 that are placed in the trays below the height of the overflow tubes 8, which provides for turbulent movement, mixing and the formation of enlarged gas bubbles, and this, in turn, increases the efficiency of the fermentation process.

The relatively small height of the constant mass column, which is ensured by the height of the bypass pipe 8, also contributes to the best gas flow. Separated biogas through the gaps 9. formed between the trays and through the flow pipes 8 enters through the nozzle 6 to the cleaner and the gas tank (not shown ), and the fermented mass from the bottom of the reactor enters R hydrolocker 15, from which heavy particles are periodically removed through the faucet, and liquid and suspended particles are fed for further use, with a small part

0 the fermented mass is again sent to the mixer to accelerate the fermentation process of the incoming base mass.

The proposed installation is less metal consuming compared to the installation of a similar designation; this is achieved by the presence of pots located one above the other, occupies less production space, reduces the duration of the incubation period;

About specific output of biogas,

Claims (3)

Formula and Comparison 1. Plant for processing manure and biogas production, containing a mass fermentation reactor, heat insulated walls with a channel for heat carrier, a mixer, an inlet for supplying the initial mass to the reactor cavity, an outlet for removing fermented mass and a pipeline for the removal of biogas, about tl and h-th id, and with the fact that the efficiency of the fermentation process, the reactor is equipped with successively installed in height with a slope in opposite directions of longitudinal trays with bypass tubes installed on the downstream part of each tray to provide cascade reciprocating movement of the working mass, the trays are placed with a gap relative to each other and provided with transverse projections and the mixer is installed at the inlet of the reactor and 0 equipped with a device for grinding and disinfecting the initial mass and branch pipes for feeding the culture of microorganisms and part of the fermented mass. 2. Installation according to claim 1, characterized in that the outlet for the fermented mass is provided with a hydraulic shutter. 3. Installation on PP. 1 and 2, in that the device for grinding and disinfecting the initial mass is made in the form of an apparatus of the vortex layer.