Green Works Compostable Cleaning Wipes, Biodegradable Cleaning Wipes - Original Fresh, 186 Count

CLEANING AND DISINFECTION OF THE SURFACE OF SURFACE OF EGGS

To eliminate or minimize the entry of microorganisms into the egg mass (melange or white and yolk), eggs are treated with disinfectants before breaking.

For washing eggs, caustic soda (NaOH) solutions with a concentration of 0.2% or soda ash (Na 2 C0 3 ) with a concentration of 0.5%, having a temperature of 30 ° C, are used. In such a solution, the time of soaking is reduced and washing is facilitated, impurities are removed from the eggshell, even if heavily contaminated and stored for a long time.

Eggs with visually clean shells and eggs after soaking and washing are disinfected.

Disinfection is carried out by immersing eggs in a bath using a special conveyor or manually for 7-10 minutes, where the exposure to a clarified bleach solution occurs with an active chlorine content of 1-1.2% at a temperature of 18 + 2 ° C.

Solutions of detergents can be used repeatedly. The maximum allowable is a 20-fold use of the solution for 3.5 hours of continuous operation with cyclical filtration.

At low-power enterprises, the YM-3000 machine with a capacity of 3,000 eggs per hour is used for washing and drying eggs (Fig. 4.2).
Egg washing machine YM-3000

Fig. 4.2. Egg washing machine YM-3000:

1 - tray for receiving eggs; 2 - drying brush; 3 - washing brush; 4 - loading tray; 5 - washing chamber; 6 - drying chamber; 7 - water heater

It works as follows. The operator loads the eggs on the inclined loading chutes, from where they roll to the intake valves, from where they get one for each turn of the auger. On the auger the eggs are fixed with brushes and guides.

Under the action of counter-rotation of the screws and brushes, the eggs are continuously rotated around the longitudinal axis and move along the machine. In the gap between the washing and drying brushes, the eggs are held on augers by special cargo shock absorbers. The surface of the eggs passing through the washing chamber is continuously washed with water at a temperature of 40 ° C, coming from the sprinklers. In the drying chamber, heated brushes wipe the surface of the eggshell, after which they fall on the transverse conveyors of the eggs. The driving pulleys of the conveyors are the cylindrical ends of the screws.

Transporters deliver eggs to the gathering table, from where another operator takes them. Contaminated water is discharged into the sewer.

For heating water, three loop electric heaters TEN-19 with a capacity of 2360 W each are installed. The stability of the water temperature in this case provides the relay TR-200. To protect electric heaters from pressure drop in the water supply network below 0.5 kg / cm 2 , the pressure switch RD-145 is provided. Thanks to the use of a fresh air heater, the service life of nylon brushes increases, maintaining the temperature only up to 40 ° C.

SG

NJ
RZ-FPM 208A machine for washing, drying and controlling eggs

Fig. 4.3. RZ-FPM 208A machine for washing, drying, controlling and disinfecting eggs:

7 - machine body; 2 - boot device; 3 - switchgear; 4 - conveyor; 5 - temperature regulator;
6 - nylon brush; 7 - washing chamber; 8 - spray device; 9 - control cabinet; 70 - drying fan;
7 7 - egg rinsing sprinkler; 12 - drying chamber; 13 - blackout curtain; 14 - ovoscoping cabin; 75 - collection tray for discarded eggs; 76 - carriage ovoskop; 77 - light filter; 18 - disinfection chamber; 79 - bracket; 20 - a camshaft; 27 - drawer of the ovoscope; 22 - conveyor drive; 23 - tubular electric heater; 24 - cylindrical

filters; 25 - discharge nozzle of the used solution

Electrical equipment is mounted in a special wall cabinet.

The machine of the brand RZ-FPM 208A with a capacity of 7,200 eggs per hour provides at the same time washing, drying and disinfecting eggs (Fig. 4.3).

The machine of the brand RZ-FPM 208A has a single technological conveyor, on which all operations are carried out consistently, which makes it possible to exclude the additional losses of raw materials (eggs) that are unavoidable during transfer.

In the lower part of the welded body of the machine 1 there is a tank with a washing solution, over which a longitudinal closed conveyor 4 of reinforced rubber rollers of a special profile is mounted. The profile of the rollers corresponds to the size and shape of the eggs. The actuator 22 consists of an electric motor, a gearbox, a chain drive and a ratchet-and-ratchet mechanism, which imparts a pulsating motion to the conveyor. The upper horizontal branch of the conveyor is used for sequential transportation of eggs for technological operations. Above the upper branch are sequentially arranged the cabin for the control of eggs 14, the washing chamber 7, the drying chamber 12 and the disinfection chamber 18.

For flushing the machine, two hatchways are provided in the front part of its bed. Sanitization machine lasts about 15 minutes. The machine is served by three operators.

The six-row PMSU egg washing machine can operate both autonomously and in conjunction with an egg grading machine. It is used in large poultry farms with a capacity of 300 thousand laying hens and more.

The PIT installation (fig. 4.4) is intended for washing, disinfecting and drying eggs with their manual laying in hillocky gaskets. It consists of the following main nodes:

• hand stacker L -15,
• egg washing machines MMYA-1,
• receiving table М МЯ -1 - 15,
• electric air heater SFOA-25/05 TC-M2 / 1,
• electrical equipment with the MMYA-1–31 control cabinet. Manual stacker 1 is used for laying eggs from pads

on the conveyor 2 washers. It is a welded construction made of stainless steel and includes a water box, a sump and a pan. To the bottom of the welded pipe with cork valve.

Nylon brushes 8 and the pump are driven by a single electric motor using a V-belt transmission. Brushes moistened with cleaning solution.
Egg washing plant PIT

Fig. 4.4. Egg washing plant PIT:

7 - manual egg handler; 2 - roller conveyor; 3 - wash box; 4 - drive; 5 - drying unit; 6 - reception table;
7 - electric air heater installation; 8 - brush unit; 9 - drain valve

Roller six-row conveyor moves eggs through washing and drying zones. It consists of a special stainless stub roller chain and rubber rollers.

The drying unit 5 includes an electric air heater unit, an air duct and an umbrella. The receiving table is designed to receive eggs from the conveyor of the washing machine, it is installed on a special stand in front of the machine. Electrical equipment consists of a control cabinet, a device for regulating the temperature of the washing solution, an interlocking device and an emergency stop for the actuators of the mechanisms connected by communication cables.

Contaminated eggs laid with a hand-held stacker 1 on a six-row roller conveyor 2 of the MMYA-1 machine are fed to the washing box 3. Wash the eggs with a solution heated to a temperature of 40 ... 45 ° C using brushes 8 reciprocating in the vertical plane from drive 4.

The solution on the brush is fed from the tank of the machine with a water pump. From the washing box, the eggs enter the drying unit 5, where they are blown by a stream of air heated through a duct from an electric air heater 7 heated to a temperature of 60 ... 70 ° C.

After drying, the eggs from the six-row conveyor of the installation arrive at the receiving table 6, from which the operators manually stack them into the pimples.

Before the start of the installation, the solution is heated with the help of three heating elements installed in the sump of the machine.

For operation as part of an egg grading line or in conjunction with sorting machines, the installation can be equipped with a SMYA-01 ring-trailer. In this case, the eggs from the six-row conveyor of the installation come to the annular transfer unit, which forms a two-row one from the six-row flow of eggs and delivers them to the conveyor of the egg grading machine. The transfer unit consists of a frame, which is a frame, a drive sprocket unit, a tensioning device, and a transfer chain (sleeve-roller chain with a step of 15.875 mm) with special plugs for transferring eggs. The drive chain sprocket is driven by the drive of the MMYA-1 washer using a chain transmission.

For autonomous work, a modernized YAMU-A egg- washing installation is used. The egg washing machine YMU-A differs from the PIT installation by the absence of an electric air heater unit (replaced by a fan) and the SMYA-01 ring skidder in its composition, since it operates in an autonomous mode, as well as an improved design of water nozzles and a drying unit.

In addition, a strainer was installed on the suction line of the pump, a storage area was inserted on the receiving table, electrical equipment was improved, and a tray was installed to protect the operator from the air flow generated by the fan.

In recent years, the washing machine for eggs of the brand YM-5-04 has found increasing use .

This five-row machine consists of:

1) from a welded frame;
2) housing with cover;
3) systems of rotating nylon brushes;
4) rubberized conveyor augers;
5) stops;
6) detergent sprayers;
7) pallet;
8) a set of electric heaters for drying eggs;
9) loading tray;
10) unloading belt conveyor;
11) electric dryer;
12) drive with chain and V-belt drives.

The machine works as follows. Eggs are manually laid in the loading tray, from where, along five inclined guides, they enter the cleaning zone, where they are soaked. Moving along the shaft-augers, the eggs are cleaned with wet brushes, and then pre-dried with heating elements, and, entering the conveyor belt, are finally completely dried with an EP-4 electric dryer. The consumption of tap water during the operation of the machine is 50 l / h.

Freshly laid eggs with a small degree of pollution is enough to wash with warm water. For washing eggs of medium pollution, use of an aqueous solution of sodium bicarbonate — baking soda at a concentration of 0.1–0.25% is allowed; its use at a temperature of 35–40 ° C gives a good effect. Eggs with a high level of contamination require pre-locking in water or the use of special detergent synthetic detergent compositions.

Synthetic detergent formulations can be used in all types of washers and installations described. Depending on the degree of contamination, the washing time is 20-180 s at an optimal temperature of 40 ± 2 ° C and a solution concentration of 0.3%. When the processing time is less than 3 minutes, the detergent practically does not penetrate into the eggs, and after washing they have a good presentation. The consumption of the washing solution of 0.3% concentration per 1000 eggs is 50 liters.

With a slight degree of contamination of eggs allowed to reduce the concentration of detergent. To prepare the solution, use drinking water with a temperature of 45 ... 50 ° C. Washed eggs are dried in a stream of warm air at a temperature of 60 ... 70 ° C and its velocity of 3-4 m / s.

The machine for cleaning eggs M-4 (Fig. 4.5) performs washing, drying and disinfecting operations in one stream, while the eggs on the screws move in opposite directions.
Machine for cleaning eggs M-4

Fig. 4.5. Machine for cleaning eggs M-4:

7 - fan; 2 - input tray; 3 - brush; 4 - feed worm; 5 - disk

The machine consists of a body, two rubber-coated augers, brushes, loading and unloading trays, a disk unloading device, a drying fan, a folding body, and a dropper for feeding disinfectant eggs to the surface of eggs.

Contaminated eggs are placed on the input inclined tray, from where they are fed one by one with a sift for each turn of the transporting auger. Upon admission to the auger, the surface of the eggs is moistened with a disinfecting solution and treated with a rotating cylindrical nylon brush, into which a cleaning solution is fed through a perforated tube. The used solution is discharged into the sewer. From the auger of the washing zone, the eggs are fed along an inclined tray to the auger of the drying zone, which is parallel, which transports the eggs under a thinner nylon brush, wiping their surface. At the same time, for the effective removal of moisture, air is supplied to this area with a small fan. The machine is served by one operator.

For the disinfection of the shell, in the production of melange, ultraviolet irradiation of eggs with the help of bactericidal lamps is also used (Fig. 4.6).
In the production of melange

Fig. 4.6. The use of UV lamps to treat the surface of eggs in the production of melange

Studies of the effectiveness of this method have shown that most microorganisms die in 5 seconds, and sterility is achieved in 20-30 seconds. The duration of irradiation depends on the degree of seeding of the eggs by microorganisms.

Exposure of 20 s is sufficient for effective exposure to putrid microflora. However, with significant contamination by spores, complete sterility is not achieved even after 20 minutes of irradiation, although most of the spores die.

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