Explore of Modern Family in the Waste Disposal Methods

In this paper we proposed the development scheme of the modern family's kitchen waste processing machine combined with automatical crush, dewatering, drying, granulation and sterilization, and discussed the proper way of process to reduce, recycle and reuse the modern family's kitchen waste by analyzing the production condition, present process and processing technology.

than or equals 45 minutes.

Overall structure design
The waste processor consists of three parts and four devices.The three parts are smash mechanism, dewater and mechanism for delivering material and mechanism for drying up and making particles.The four devices are the washing and reverse rushing device with the high pressure mist and water, the sensing device of temperature and humidity, device for drying and disinfecting with microwave and purification device for waste fumes.

Smash mechanism
The highest hardness for the remainder is poultry bones and teeth; we usually impact them with the hammer for pieces fully, as shown in figure 2. It is equipped with fix teeth and crystal knife plate with multiple functions in the downfall cavity and it is equipped with two moving hammer on the crystal knife plate.The remainders go to the downfall room from the entrance; the spinning knife plate driven by the motor turns the two moving hammer and fix teeth into spinning knife groups.The rubbish is broken into pieces by the joint action of compressing, impacting, grinding, splitting, and cutting and then drains by the crystal force of the teeth and goes into dewater mechanism from channels.

Structural design of the Centrifugal plate
The centrifugal knife plate is the key components of the smash mechanism as shown in figure 2. The requirements for it are resisting to corrosion and high hardness, strength and stiffness, so we choose Martensitic stainless steel material, the diameter of the centrifugal knife plate is 120 mm referring to the structural dimension of the kitchen sink on test.2.3.2Force analysis for the centrifugal knife plate and the determination of power Based on the actual applied load of the centrifugal knife plate, we idealize the knife plate to the cardboard rotating by the central axis.There are fluid resistance, resistance when breaking the waste (cut, tear and wear) resistance and fluid pressure.
(2) Resistance from the waste F 2 : Through testing on the common poultry bones and scraps from the waste, work out the biggest resistance by testing F 2 = 11.5N.
(3) Fluid pressure F 3 : In formula, the fluid depth h is 150 mm, fluid pressure q can be calculated, q =gh =1.0x103x9.8x0.15= 1470 N/m 2 , so fluid pressure F 3 = qA = qR 2 = 1470xx0.06 2=16.6 N. (4) The overall resistance to overcome F: F = F 1 + F 2 + F 3 = 2 + 11.5 + 16.6 =30.1 N (5) Determining power of downfall electrical motor P w When the downfall knife plate working, the resistance to overcome is F, rotating speed of the centrifugal knife plate n= 2800 r/min, so line speed V =15.5 m/s, so the working power of knife plate P w = FV = 468 W.

Dehydration and delivering material mechanism
The mature method for processing kitchen waste utilizes comprehensively comminuting and suppressing and dehydrating and dry technology.The machine chooses a spiral squeezing mechanism to divide solid and liquid for squeezing continuously, the design adopts a small power electrical motor (25w motor of dehydration), and it rotates at a low speed and has low energy consumption and noise reduction.The spiral squeezing mechanism is shown as in figure 3, it consists of the cylinder shell and rotating shaft.It is fitted with a filter net in the cylinder shell.The spiral blade pushes the material from the feed holes to the export.Since the entrance volume of spiral shaft and shell is reduced gradually, the materials are squeezed, the liquid is drained through the filter hole, and then the solid materials go to the drying mechanism from the hole of draining material.

Dry, mixture and particle made mechanism
The volume of the mechanism is so big that it is placed at the bottom of the machine to ensure stability of the whole machine and., as shown in figure 1, the structure of the mixture axis is shown in figure 3, the blade is welded in the stir bar, the process is better to mix fully in drying up under high temperature and materials are heated uniformly.The heat way by microwave can ensure the disinfection effectiveness.

Process automatically in the cook waste
In the test, after placing the remainder in the downfall cavity, press down "run" key, the device will start automatically and end after 45 minutes.The whole process as the following: 1) Empty food waste into the smash cavity; 2) Wash away food grease with high pressure misty water; 3) Drain grease to drainage; 4) Grid food waste by injecting water; 5) Deliver particles and dewater by centrifugal force; 5) Drain waste gas to drainage; 7) Dry and grid materials and deliver automatically; 8) Wash out cavity and drain water; 9) Store materials to storage box;

Conclusion
The cost of the development programme for the kitchen waste processor in the article is about half of that of biological processor, and convenient in using and compact in structure.The drying grainy can be turned into the raw materials for organic fertilizer and feed, thus reduce environment pollution and threaten of the kitchen waste and produce good social significance.

Figure 2 .
Figure 2. 3d graphics of internal structure layout