Ningbo Yuantai Fine Chemical Co., LTD
Fumaric acid is colorless crystal, soluble in water, slightly soluble in cold water, ether, benzene, easily soluble in hot water, soluble in ethanol. The product is an intermediate of fine chemicals such as medicine and optical bleach, as a food additive - sour agent, used in cooling drinks, fruit drops, jelly, ice cream, etc., also used as a sour condiment, but also used as an intermediate of synthetic resin and mordant. Fumaric acid dryer is widely used in chemical, light industry, medicine, food, plastics, grain and oil, slag, salt, tobacco sugar and other industries of powder, granular materials drying, cooling, humidification and other operations, but also can be used for drying cooling, cooling humidification operations.
Material overview
Fumaric acid, also known as fumaric acid, corydalic acid, or lichenic acid, fumaric acid (IUPAC (E) -fumaric acid), is a colorless, flammable, crystalline carboxylic acid derived from butene. Its chemical formula is C4H4O4. Burning fumaric acid releases the irritating maleic anhydride smoke. It tastes like fruit and is found in corydalis, boletus, lichens and Icelandic nori.
The material enters the machine from the feed port and jumps forward on the air distribution plate under the action of the vibration force provided by the vibration motor or other means. At the same time, the air is heated to a certain temperature after being filtered and enters the downwind chamber of the dryer through the tuyere. Under the dual action of the vibration force and the hot air flowing through the air distribution plate, the material is in a suspended state and contacts with the hot air flow. The intense turbulence between the material particles and the hot medium strengthens the heat and mass transfer process. The dried product is discharged from the discharge port, and the evaporated water and waste gas are recovered by the cyclone separator and discharged into the atmosphere. The lower bed body provides a stable air chamber with a certain pressure for the bed. Adjust the induced draft fan, so that the upper part of the bed material in the upper box to maintain a small negative pressure, maintain a good dry environment and prevent dust leakage.
① The material is heated evenly, the heat exchange is sufficient, the drying strength is high, and the energy saving is about 30% compared with the ordinary dryer. Vibration source is driven by vibration motor, running balance, easy maintenance, low noise, long life. Steady flow, no dead Angle and blow through phenomenon. It has little damage to the surface of the material, and can be used for fragile drying, and does not affect the working effect when the material particles are irregular.
② The fully enclosed structure effectively prevents cross-pollution between materials and air, and the working environment is clean. Good adjustability, wide adaptation surface, material layer thickness, moving speed in the machine and amplitude changes can be stepless adjustment.
③ Due to the application of vibration, the minimum fluidizing gas speed can be reduced, so the air demand can be significantly reduced, and then the dust layer entailing can be reduced, the matching heat source, fan, cyclone separator, etc., can also be reduced accordingly, the complete set of equipment is reduced, and the energy saving effect is obvious. The in-machine residence time can be easily changed by adjusting vibration parameters. The operation of the piston flow reduces the requirements of material particle size uniformity and regularity, and it is easy to obtain uniform dry products.
Silicon carbide (SiC) is made of quartz sand, petroleum coke (or coal coke), wood chips as raw materials by high temperature smelting resistance furnace. Silicon carbide also exists in nature as a rare mineral, moissanite. Silicon carbide is also known as carbonite. In the contemporary C, N, B and other non-oxide high-tech refractory raw materials, silicon carbide is the most widely used and the most economical one. Can be called gold steel sand or refractory sand. At present, China's industrial production of silicon carbide is divided into black silicon carbide and green silicon carbide two kinds, are hexagonal crystals, the specific gravity is 3.20 ~ 3.25, microhardness is 2840 ~ 3320kg/mm2.
Silicon carbide drying line is a new type of efficient fluid drying equipment developed by our company to overcome the low efficiency and high consumption of static drying. In the design process, the machine fully combines the characteristics of flow drying such as air drying, promotes the advantages and avoids the disadvantages, so that the whole machine has a reasonable process structure and superior performance, and truly realizes the low consumption and high efficiency goal of flow drying.
The application range of this machine is extremely wide, can be used for silicon carbide, black silicon carbide, green silicon carbide, black silicon carbide powder, green silicon carbide powder, foam ceramic silicon carbide, refractory silicon carbide and other small proportion of fine powder materials drying. The equipment has high thermal efficiency, low energy consumption, small footprint, simple configuration and easy operation and control.
Hot air enters the mixing and grinding drying chamber from the bottom of the dryer at an appropriate jet speed from the air inlet, which has a strong shearing, blowing and rotating effect on the material, so that the material is subjected to centrifuge, shear, collision and friction and is granular, which strengthens the mass and heat transfer. At the bottom of the dryer, the larger wet particles are mechanically broken under the action of the agitator, the particles with lower wet content and smaller particle size are carried up by the rotating air flow, further drying in the rising process, because the gas-solid phase is rotating flow, the inertia of the solid phase is greater than the gas phase, the relative speed between the solid and gas is larger, strengthening the heat transfer effect between the two phases, so the drying strength of the machine is high.
1. Strong professionalism, large processing capacity, fast drying rate, the surface area of the material and liquid is greatly increased after atomization, and the drying time is greatly reduced under vacuum.
2, the equipment structure is simple, no wearing parts, low maintenance costs.
3, the operation is simple and stable, the control is convenient, and the intelligent operation can be realized.
4, the use of different boiling point temperatures to achieve liquid-liquid separation.
5, the use of special non-standard design atomizer, atomization, separation effect is good.
6, set chemical reaction, drying and integration, one time to complete the reaction, drying, optimize equipment performance.
