RU103706U1 - TANK FOR REMOVING LIQUID MANURE FROM UNDER GRILLED FLOORS - Google Patents

Abstract

 Tank for removing liquid manure from under the grating floors, including a housing with a flat bottom and a flush hole, a locking valve, characterized in that it is additionally equipped with a frame located along the inner perimeter with a membrane fixed along its edge, made of waterproof elastic material, with the center the membrane is fixed along the edge of the flush hole in the bottom of the tank.

Description

The proposed utility model relates to agriculture and can be used in animal husbandry for cleaning manure from under trellised floors, in particular in pigsties.

The closest to the proposed utility model for its purpose is a tank for the liquid fraction under the machine for the lactating uterus and piglets in the nursery of I-TEK, presented on the website http://www.i-tek.fr/IMG/pdf/en/11 .pdf, taken as an analog. The tank is made of metal or plastic, has a constant bottom shape with a slope towards the flush hole and is located directly under the machine, on top it is covered with a grating floor.

This device is inherent in the main disadvantage of any hydraulic method of removing manure - high water consumption. The addition of water increases the already large yield of manure. In addition, due to the static construction of the tank at the time of emptying, there is no pre-mixing, and there are problems with washing off the dense fraction of manure that has settled on the bottom. Therefore, the objective of the invention is to minimize water consumption when emptying the tank.

Closest to the proposed utility model in technical essence is a sludge-chute-flush system using common for several machines bathtubs with a flat bottom and a drain hole in the middle, located under the slotted floors. The scheme of such a system is presented in the article "The content of pregnant sows (recommendations of the company" Roxel ", Belgium)" [Pavlovsky P.A. Agricultural Bulletin. Zooengineering. - 2005. - No. 3 (64). - S.11]. Founder and publisher of ODO Neofors, Republic of Belarus. The design of the bath manure systems used in such systems is adopted as a prototype. These bathtubs have a flat bottom, as a result, a large amount of water must be used for complete emptying, in addition, the solid fraction of manure that has settled on the bottom must be washed off additionally with a stream of water under pressure, which further increases the water consumption for complete emptying.

The goal is to minimize water consumption when emptying the tank.

This is achieved by the fact that raising the frame with a fixed membrane converts the bottom of the tank from a flat flat to the shape of a funnel, which leads to the following effects:

- the bottom takes the form that provides the greatest degree of runoff of manure in the direction of the wash hole;

- the bottom area of the tank is reduced with a constant volume of liquid, as a result, the pressure per unit area of the bottom increases, which will provide an intensive flush using a smaller volume of water;

- lifting the membrane will lead to mixing of the upper and lower layers of different density of manure masses, such homogenization forms a more homogeneous mass with increased fluidity;

- a thick fraction formed at the bottom of the tank during the accumulation period, at the time of flushing, will shift from the entire area of the bottom of the tank to its center. A less dense fraction of manure and water will appear above it, under pressure of the upper liquid layers, at the moment the valve opens, a thick fraction will be forced into the flush hole below the laid sewer pipe.

The inventive device of the tank differs from the prototype in that it is provided with a frame around the perimeter, which can move upward in the direction of the grating and lower to the bottom a level slightly higher than filling the tank with water. A membrane made of waterproof elastic material is attached to this frame and along the edge of the flush hole in the center of the tank. During the accumulation period, the frame drops to a level slightly higher than filling the tank with water, and the membrane fits snugly to the bottom of the tank, it is pressed by water and manure, as a result of which the bottom becomes even and flat. At the moment of flushing, the frame rises up to the level of the grating floor, and the membrane fixed to it and along the edge of the flushing hole at the bottom of the tank takes the form of a funnel.

The essence of the proposed utility model is illustrated below by the following description and the accompanying graphic material. The tank for removing liquid manure from under the grating floors, including a housing with a flat bottom and a flush hole, a locking valve, a grating floor that closes the tank from above, is characterized in that it is additionally equipped with a frame along the inner perimeter with a membrane made of waterproof elastic material, and the center of the membrane is fixed along the edge of the flush hole in the bottom of the tank.

Figure 1 presents a diagram of the tank during the accumulation period, figure 2 is a diagram at the time of its emptying. The casing of the tank 1 can be made of metal, plastic or reinforced concrete, and the tightness of the casing and the bottom of the tank is not necessary, since these elements will be separated from the liquid by a membrane 2 made of a durable waterproof elastic material, and the casing and the bottom perform only a supporting function for the membrane . A metal frame 3 is placed inside the tank along its perimeter; the edges of the flexible membrane are attached to it. In the center of the membrane there is a hole matching the flush hole 4 in the center of the bottom of the tank. The edges of the holes in the membrane are firmly fixed along the edge of the flush hole of the bottom of the tank. The tank is located directly under the machine, and on top is covered with a trellised floor 5.

The proposed tank design works as follows. During the accumulation period, the frame 3 with the membrane 2 fixed along the perimeter drops to the bottom of the tank 1 to a level slightly higher than the level of filling with water. In this case, the membrane is tightly pressed to the bottom of the tank under the weight of the water and takes its even flat shape. Manure is forced through the hooves of animals through the slots of the trellised floor 5 and enters the tank 1 pre-filled with water. Depending on the tank volume and technology requirements, the accumulation period can last from 8 to 14 days. At the moment of emptying, first the frame 3 with the membrane 2 fixed along its perimeter rises up to the level of the grating floor 5. Due to the fact that the center of the membrane is firmly fixed along the edge of the flush hole of the fixed bottom of the tank 4, raising the frame causes the flexible membrane to take the form of a funnel 2. The liquid rushes toward its center under the force of gravity, while the manure fractions of different densities are mixed. The dense fraction will also move to the center of the funnel formed by the membrane and will be directly above the flush hole valve. In this case, a reduction in the area of the bottom of the tank will increase the pressure on the flush valve, and when removing valve 6, the dense fraction will be pressed under the pressure of the more liquid manure fraction located above. After that, the liquid manure enters the pipe, laid at a certain angle under the bottom of the tank. Manure is transported through pipes to the places of utilization and processing.

The novelty of the solution is due to the fact that due to the design features - the presence of a frame with a membrane - the design of the tank has the ability to change the shape of the bottom from flat to funnel-shaped. This will allow you to use less water for pre-filling due to the flat bottom at the time of accumulation of manure. The shape of the funnel during emptying allows for a complete discharge into the sewer pipe of more dense manure and solid fraction in its composition due to increased pressure on the drain valve due to a reduction in the area of the bottom of the tank.

Claims (1)

Tank for removing liquid manure from under the grating floors, including a housing with a flat bottom and a flush hole, a locking valve, characterized in that it is additionally equipped with a frame located along the inner perimeter with a membrane fixed along its edge, made of waterproof elastic material, with the center the membrane is fixed along the edge of the flush hole in the bottom of the tank.