Clean workshop workshop screening equipment

Clean workshop workshop screening equipment

Screening in clean pharmaceutical cleanroom is the operation of separating loose materials with uneven particle size into two or more grades by means of screens; The auxiliary materials for tablet production and the solid materials for preparing suspensions need to be sieved to remove coarse powder; sieve...

Text label: clean workshop equipment, purification workshop screening equipment

Clean workshop workshop screening equipment

Screening in clean workshop is the operation of separating loose materials with uneven particle size into two or more grades by means of screens; The auxiliary materials for tablet production and the solid materials for preparing suspensions need to be screened to remove coarse powder; screen to remove fine powder, and screen out fine powder or impurities from the material. In order to avoid excessive pulverization of the material and reduce the load of the pulverizer, the spray fluidized granulation operation must continuously lead out the material in the bed for screening, and the screened out fine powder will return to the bed to continue the operation; sieve the coarse particles from the material. And fine powder, reserve the sieve between the coarse sieve and the fine sieve, when preparing the sugar pill, sieve the oversized or undersized particle in the final product to obtain the finished product.

Hand shaker is made of stainless steel wire, copper wire, nylon wire, etc., which are fixed on a round or rectangular stainless steel frame. They are stacked in sets according to the size of the screen, and the thickest size is on the top. , the top is covered, the smallest size is at the bottom, and it is placed on the receiver. When applying, the medicine sieve of the required size can be placed on the receiver, covered with a lid, and shaken by hand to sieve; For small production or particle size inspection. The screen mesh of the trommel screen is covered on the cylindrical, conical or hexagonal trommel screen frame. The drum and the horizontal plane generally have an inclination angle of 2°-9°. In the drum, the sieved fine materials are collected under the sieve, and the coarse materials are discharged from the low end; the rotating speed of the drum is generally 15-20r/min. The drum screen is only used for the screening of coarse materials, and is not suitable for viscous materials. is effective with small screen area. The screen frame of the rotary screen is generally rectangular or positive direction, driven by the eccentric shaft to rotate along a circular trajectory around the axis in the horizontal plane, the rotation speed is 150-260r/min, the turning radius is 32-60mm, the screen frame rotates The screen can generate high-frequency vibration, the screen has a certain inclination, and a number of small balls are placed in the grid at the bottom of the screen. The impact of the balls is used to vibrate the screen, which can prevent the screen from blocking and can operate continuously. Zhongjing Global Purification can provide consulting, planning, design, construction, installation, transformation and other supporting services for clean workshops and purification plants.

The mechanical vibrating screen of the clean pharmaceutical cleanroom is generally equipped with an unbalanced weight or a cam with an edge on the rotating shaft, which makes the screen vibrate; the screening efficiency is high, the operation is simple, the cleaning is convenient, the fully enclosed structure, can prevent The powder is flying and meets GMP requirements; it consumes less energy and is small in size, suitable for medium and large-scale production; the classified powder is automatically discharged and can be used continuously. In order to avoid equipment displacement caused by vibration, the mechanical vibrating screen can be made into a suspended type, and the screen is equipped with brushes, which can be brushed through the screen at any time to prevent the screen holes from being blocked; in order to avoid dust flying, the machine can be tightly covered with a cloth cover. To remove accumulated coarse powder, it belongs to intermittent screening; the suspended vibrating screen has simple structure, low cost, small footprint, high efficiency, and is suitable for unlimited viscous materials.

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