In the press process, pie throwing radially different levels of oil content, oil content in the surface layer than the outer surface of the story, at the same time, press material difference between the rate of radial level of residual oil with virgin material to the cake the passage opening is reduced. The actual radial from the plane of cake residual oil rate level is inversely related Zhengzhou just press equipment, namely cake residual oil is higher than the outer lining of residual oil. This phenomenon can be considered due to the screw press due to the structural characteristics: on the one hand pressed cake blank check within bore drain is bound to the surface along the helical axis virgin material passage is long and difficult to discharge; another in terms of the material layer is thicker feed section and the front part of the press section, prone to oil ratio gradient in the late squeezing, pressing thin material is compressed, while the strength of the screw shaft near water evaporation at the surface of the inner wall of the cage than virgin high so that the oil squeezed out of material particles within the pores, so the oil content gradient between the inner and outer layers of the cake is relatively narrow; the bread from the plane when the pressure disappears Zhengzhou press prices, rapid evaporation of water and an outer layer cake surface oil suction etc. but the inner layer cake oil content lower than the outer layer. Efficient fine filter press: press room, room temperature should be maintained at 15 ℃ -20 ℃, the temperature is too low will affect oil yield and oil quality. The moisture content of oil into the juice should be appropriate before, the best moisture content as follows: 8% -11% peanuts, soybeans 5% -8%, 4% -6% cottonseed, rapeseed 6% -8%. Empty the machine is operating normally, even a small amount of oil slowly fed to the machine honing heat, and observe whether the cake smoothly. If you can not successfully discharged, it may be the cake outlet gap is too small, then clockwise rotation adjustment hand wheel. I found the cake too much too fast, then turn the adjusting handwheel counterclockwise until normal operation so far. Then slowly increase the amount of feed to prevent uneven charging, load suddenly rises, causing blockage. Press operating temperature. If feeding more dry Zhengzhou press brand, the machine will have a higher temperature, and vice versa can be lower. General machine greenhouse at 60 ℃ can be out of oil. Touch the body shell feel can be put into normal operation when hot. When the cake should be pressed to open slowly adjust thick, cake thickness adjusted to 0.3 mm -1.0 mm, considered to meet the requirements, then you can flip a lever locking adjustment nut, increase feed. Work continues to remove slag leakage to prevent passage is blocked. The recovered oil residue can continue to squeeze back into the hopper. When pressed a second time, the cake should be broken into small pieces after the feed hopper of about 10 mm. Press work for 3 months to 4 months, once overhaul. And regularly lubricated with butter or oil each site. Zhengzhou press equipment, Goodwin machinery (online consultation), Zhengzhou press provided by Nanyang City, Qi Feng Machinery Co., Ltd. Nanyang City, Qi Feng Machinery Co., Ltd. (www.qifengjixie.com) (www.nyqfjx.com) is Nanyang, Henan, edible oil processing machinery leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Goodwin machinery leadership with the staff warmly welcome all inquiries negotiations to create Goodwin machinery better future.