CN103719227B - Recycling method of food-grade depilatory wax used for poultry depilation - Google Patents

Abstract

The invention discloses a method for recycling and reusing food-grade depilatory wax applied to poultry depilation, which is characterized in that it mainly includes melting the wax lumps, pouring them into mesh bags, transferring them to a closed high-pressure container with small holes for heating , filtration, and then extrusion separation and other steps. The invention is easy to operate, easy to implement, saves cost, does not damage the thermal stability, viscosity and penetration of the recovered wax liquid, can be used repeatedly, and is environmentally friendly and economical.

Description

A method for recycling food-grade depilatory wax applied to poultry depilation

technical field

The invention relates to a food-grade depilatory wax applied to poultry depilation, in particular to a method for recycling and reusing the food-grade depilatory wax from the wax block after depilation.

Background technique

my country is a country that raises and exports waterfowl such as ducks and geese. In the slaughtering and processing of ducks and geese, the process of removing the feathers and then pulling out the small hairs is very time-consuming. In the past, it was often used to pluck the hairs with rosin, and then manually remove the small hairs. However, rosin plucking has a series of problems such as serious environmental pollution, poor safety, endangering the health of operators, high skin damage rate of poultry carcasses, and inability to export products. The health and epidemic prevention department has ordered a ban on its use. In some enterprises, poultry depilation wax is used, and few people reuse the used depilation wax. Even if there is, the obtained product has poor thermal stability, low viscosity, and high penetration, which greatly affects the quality of meat duck carcasses and increases workers' working hours. The depilatory wax used in the present invention is added with various food additives, can be used in edible products, is non-toxic and pollution-free, has high depilatory wax, and the thermal stability, viscosity, and penetration of the recovered food-grade depilatory wax obtained in the present invention are not damaged , has great market value.

Contents of the invention

In order to overcome the problems of repeated use of food-grade depilatory wax and the like, the present invention provides a method that can fully recycle and reuse food-grade depilatory wax.

The purpose of the present invention is achieved through the following technical solutions:

A method for recycling food-grade depilatory wax applied to poultry depilation is characterized in that it mainly includes the following steps:

1) Heat and melt the depilated wax block, then put it upside down into the mesh bag and tie the mouth, and immediately put the mesh bag into the built-in cylindrical barrel in the airtight high-pressure container, wherein the mesh bag is made of nylon material with a pore size range of 0.5- 1.2mm, there are several small holes distributed on the lower edge and bottom of the built-in cylindrical barrel;

2) Open the wax discharge port at the bottom of the closed high-pressure vessel, and at the same time squeeze the hydraulic piston on the upper part of the closed high-pressure vessel from top to bottom;

3) The melted wax oil is filtered through the mesh bag and overflows into the closed high-pressure container through the small hole of the cylindrical container, and then discharged from the bottom of the closed high-pressure container.

Said step 2), before opening the wax outlet at the bottom of the airtight high-pressure container, open the steam inlet of the airtight high-pressure container, and simultaneously open the exhaust port of the airtight high-pressure container, then turn on the electric heating switch of the airtight container, heat, so that the The water vapor entering the closed high-pressure container keeps the temperature constant. When the air in the closed high-pressure container is discharged, the exhaust port is closed, and the steam with a temperature of 180-260°C is always introduced to discharge the air in the closed high-pressure container and make the airtight Keep the state of 120-150°C and 14-22MPa in the container, so that the melted wax and oil hairs are not easy to solidify, which is beneficial to the separation of wax and oil hairs.

In the step 2), before the hydraulic piston on the upper part of the closed high-pressure vessel is squeezed from top to bottom, the pressure in the closed high-pressure vessel automatically filters the molten wax oil through the mesh bag, and overflows through the small hole of the cylindrical vessel to into a closed container, then discharge from the bottom of a closed high-pressure container. When the pressure is not enough to discharge the wax liquid from the small hole of the cylindrical barrel, the hydraulic piston rod is used to squeeze the residual wax liquid to recover the wax liquid to the maximum extent, and also to separate the wax liquid and fine fluff more thoroughly, saving time And save effort.

The aperture of the mesh bag is 1 mm. It can effectively prevent the fine fluff from flowing out with the wax liquid, and the effect of wax and hair separation cannot be achieved.

The cylindrical barrel, the hydraulic piston and the airtight high-pressure container are inverted cones. When the pressure is not enough to make the molten wax overflow from the small hole, the wax can flow out from the inverted cone according to its own gravity, and then use the hydraulic rod to repeatedly squeeze from top to bottom. The inverted cone container increases the separation speed of wax liquid and small fluff, and reduces the separation time.

Said step 3), the melted wax oil is filtered through the mesh bag through the small holes of the cylindrical barrel, and after being discharged from the bottom of the airtight high-pressure container, the mesh bag is also taken out from the airtight high-pressure container, and after being placed at room temperature, the attached The sundries on the inner wall of the mesh bag are removed, and the mesh bag can be reused.

The material of the mesh bag in the step 1 is one of nylon 66, nylon 12 and nylon 6. The melting point of these materials is higher than that of food-grade depilatory wax. At the melting point of depilatory wax, the mesh bag made of nylon will not melt, and the cost of nylon is lower than that of other materials, which is economical.

The melted wax wool block does not exceed 3/4 of the built-in cylindrical barrel.

The lower edge of the built-in cylindrical barrel of the airtight high-pressure container refers to the part from the bottom to the top 2/3 of the cylindrical barrel.

The invention cleverly utilizes the principle of pressure difference combined with the effect of external machinery, so that the process of recycling food-grade depilatory wax is simple, convenient and easy to operate. The wax liquid and fine fluff can be completely separated, which greatly improves the purity of the recovered wax liquid, and does not damage the thermal stability, viscosity, and needle penetration of the recovered wax liquid.

specific embodiment

Example 1

Heat and melt 12kg of depilated wax hair block, then pour it upside down into a nylon 66 mesh bag with a hole diameter of 0.5mm, and immediately put the mesh bag into a built-in stainless steel cylinder barrel in a closed high-pressure container, open the closed high-pressure container The steam inlet is fed with steam at a temperature of 180°C. After the air is exhausted, the exhaust port is closed to keep the container at 120°C and 14MPa. Then slowly open the valve of the wax discharge port to let the wax liquid flow out until the wax liquid flows out very slowly, and then use the hydraulic rod to repeatedly squeeze from top to bottom until the wax liquid and the fine fluff are completely separated. Then place the mesh bag at room temperature, and after the residual wax solidifies, shake off the impurities in the mesh bag and use the mesh bag again.

Example 2

Heat and melt 20kg of depilated wax hair block, then pour it upside down into a nylon 6 mesh bag with a hole diameter of 1mm, and immediately put the mesh bag into a built-in stainless steel cylindrical barrel in a closed high-pressure container, and open the steam in the closed high-pressure container The inlet is fed with steam at a temperature of 180°C. After the air is exhausted, the exhaust port is closed to keep the container at 150°C and 20MPa. Then slowly open the valve of the wax discharge port to let the wax liquid flow out until the wax liquid flows out very slowly, and then use the hydraulic rod to repeatedly squeeze from top to bottom until the wax liquid and the fine fluff are completely separated. Then place the mesh bag at room temperature, and after the residual wax solidifies, shake off the impurities in the mesh bag to use the mesh bag again.

Example 3

Heat and melt 24kg of depilated wax hair block, then pour it upside down into a nylon 12 mesh bag with a hole diameter of 1.2mm, and immediately put the mesh bag into a built-in stainless steel cylinder barrel in a closed high-pressure container, open the closed high-pressure container The steam inlet is fed with steam at a temperature of 180°C. After the air is exhausted, the exhaust port is closed to keep the container at 180°C and 22MPa. Then slowly open the valve of the wax discharge port to let the wax liquid flow out until the wax liquid flows out very slowly, and then use the hydraulic rod to repeatedly squeeze from top to bottom until the wax liquid and the fine fluff are completely separated. Then place the mesh bag at room temperature, and after the residual wax solidifies, shake off the impurities in the mesh bag to use the mesh bag again.

Claims (9)

1. A method for recycling food-grade depilatory wax applied to poultry depilation, is characterized in that, mainly comprises the following steps: 1) Heat and melt the depilated wax block, then pour it into a mesh bag to tie the mouth, and immediately put the mesh bag into a built-in stainless steel cylinder barrel in a closed high-pressure container, wherein the mesh bag is made of nylon material, and the aperture range 0.5-1.2mm, there are several small holes distributed on the lower edge and bottom surface of the built-in stainless steel cylindrical barrel; 2) Open the steam inlet of the airtight high-pressure container, and at the same time open the exhaust port of the airtight high-pressure container, let in water vapor with a temperature of 180-260°C, open the wax discharge port at the bottom of the airtight high-pressure container, and finally put the upper part of the airtight high-pressure container The hydraulic piston squeezes from top to bottom; 3) The molten wax oil is filtered through the mesh bag and overflows into the closed high-pressure container through the small hole of the built-in stainless steel cylindrical barrel, and then discharged from the bottom of the closed high-pressure container. 2. the method for reclaiming and reusing the food-grade depilatory wax that is applied to poultry depilation as claimed in claim 1, is characterized in that, described step 2), before opening the wax outlet at the bottom of the airtight high-pressure container, comprises opening the airtight high-pressure The electric heating switch of the container is heated to keep the temperature of the water vapor passing into the closed high-pressure container unchanged. When the air in the closed high-pressure container is discharged, close the exhaust port to keep the temperature in the container at 120-150°C and 14-22MPa. state. 3. The method for recycling the food-grade depilatory wax applied to poultry depilation as claimed in claim 2, characterized in that, before the described hydraulic piston extrudes from top to bottom, the high pressure in the airtight high-pressure container will automatically The molten wax oil is filtered through the mesh bag, overflows into the airtight high-pressure container through the small hole of the built-in stainless steel cylindrical barrel, and then discharges from the bottom of the airtight high-pressure container. 4. the method for recycling the food-grade depilatory wax that is applied to poultry depilation as claimed in claim 1, is characterized in that, the aperture of described mesh bag is 1mm. 5. the method for reclaiming and reusing the food-grade depilatory wax that is applied to poultry depilation as claimed in claim 1, is characterized in that, the bottom surface of described built-in stainless steel cylinder barrel, hydraulic piston and airtight high-pressure container is an inverted cone. 6. the method for reclaiming and reusing the food-grade depilatory wax that is applied to poultry depilation as claimed in claim 1, is characterized in that, described step 3), the wax oil of fusing passes through the aperture of built-in stainless steel cylinder barrel through mesh bag filtration , after being discharged from the bottom of the closed high-pressure container, it also includes taking out the mesh bag from the closed high-pressure container, and after placing it at room temperature, the sundries attached to the inner wall of the mesh bag will be removed by shaking, and the mesh bag can be reused. 7. The method for recycling and reusing food-grade depilatory wax applied to poultry depilation as claimed in claim 1, wherein the material of the mesh bag in the step 1) is one of PA66, PA12, and PA6. 8. The method for recycling and reusing food-grade depilatory wax applied to poultry depilation as claimed in claim 1, wherein the melted wax wool block does not exceed 3/4 of the built-in stainless steel cylindrical barrel. 9. The method for recycling the food-grade depilatory wax that is applied to poultry depilation as claimed in claim 1, wherein the lower edge of the built-in stainless steel cylindrical barrel of the airtight high-pressure container refers to the bottom surface of the built-in stainless steel cylindrical barrel to the top. 2/3 of the surface.