Brief description

Diameter 600 high concentration energy saving grinder, referred to as high concentration grinder, is a new generation of high concentration grinder equipment, using electromagnetic speed regulation of the form of forced feeding. It is suitable for grinding of chemical pulp, semi - chemical mechanical pulp, yield pulp made by cold dip method and fiber sheet material. High consistency...

Detailed introduction

Diameter 600 high concentration energy saving grinder, referred to as high concentration grinder, is a new generation of high concentration grinder equipment, using electromagnetic speed regulation of the form of forced feeding. It is suitable for grinding of chemical pulp, semi - chemical mechanical pulp, yield pulp made by cold dip method and fiber sheet material.

Has a wide scope of application of the pulp thick liquid, whether trees complex, pulp material differences, or the remaining leftover material after timber processing, shaving, cutting, pulp residue and the quenching reed pieces, such as rice, wheat straw, cotton stalk, can with high rotating speed, the appropriate grinding clearance, separated into high quality fiber.

Concentration grinding can be single, multiple series or parallel applications.

Main structure and working principle

High concentration grinding is mainly by feeding system; Pulping machine; Adjust the moving device and motor composition. Its structure and working principle are as follows:

1) The feeding system consists of a speed-regulating motor, a triangular pulley, a bearing body and a feeding pipe. The transmission mode is as follows: the speed regulating motor drives the screw shaft through the triangle belt and the pulley, and the screw rotates to realize feeding. The feeding revolution of the high concentration grinding is suitable between 200r/min-300r/min. According to the requirements of the process, the user can realize the feeding speed of the screw required by different sizing materials by adjusting the speed regulating controller.

2) The grinding machine is mainly composed of grinding chamber, fixed disc seat, mobile grinding disc and spindle, front and rear bearings, adjusting mobile device and rod pin coupling, etc.

The working principle is that the feeding spiral pipe slurry (raw slurry) is thrown to the crushing area of the middle grinding plate of the two disks by the feeding wing wheel of the main shaft; Then, based on the rotating linear velocity of the moving disc 2750m/mim, the raw slurry is quickly ground into fine slurry through the coarse and fine grinding area and discharged into the slurry storage pond for later use.

Grinding plate according to the variety of slurry classification custom, by special treatment, durable, in the grinding immersion method of high yield pulp and semi chemical mechanical pulp, more show its excellent quality. The inner sleeve of the front and rear bearings can be moved back and forth with the spindle to meet the space needs when adjusting the disc clearance and changing the grinding plates. Adjusting mobile device adopts lever type structure, and contact with the rear bearing. Mainly has the lever mechanism and the fine-tuning mechanism composition. When the lever handle falls, the spindle is driven to do axial movement by adjusting the worm, and the working clearance of the grinding disc is adjusted. Pull up the lever, it can quickly pull the moving disc 8mm, in order to deal with the abnormal situation in the process of grinding, the spring in the moving device can buffer the unexpected impact force of the spindle and the moving disc in the process of grinding. When replacing the grinding disc or repairing, please stop and disassemble the fixed disc seat, then the operation can be carried out. The fastening thread of the spindle and the dialing wheel is left-hand thread, which rotates counterclockwise against the spindle of the motor.

3. Motor

In order to meet the technical needs of users, the machine has three kinds of motors for selection.

(1) Please choose Y280S-4/75KW when grinding total chemical pulp;

(2) Y280-4/90KW should be used for grinding and soaking grass pulp

(3) Y315S-4/110KW is used for grinding semi-chemical wood chip pulp or soaking wood chip pulp.

4, electrical

The main motor uses a common autocoupling decompression starter.

Hoisting, erection and adjustment

1) The high concentration mill has been emptiness debugged before leaving the factory, and leaves the factory after passing inspection.

2) Please use nylon rope when lifting to avoid scratching the body.

3) Installation of the basic version.

The installation of the basic version adopts the construction method of secondary alignment and secondary grouting. The first time is preliminary alignment, mainly for positioning, and the first grouting, until the reserved hole of anchor bolt is filled with concrete and the base surface is level. The second time is for precise adjustment, should make the host to achieve the installation accuracy.

4) The cement of foundation grouting generally uses ordinary Portland cement, whose grade is no less than 400. The grade of mixed concrete can be raised one level according to the grade of foundation concrete, which is no less than 150.

5) For the first irrigation of the basic version, the second alignment can only be carried out after the health retaining strength of the concrete reaches 75% of the design strength. After that, a second grouting is done. The thickness of the secondary grouting should be 25-50mm and the final inspection and the secondary grouting can be carried out simultaneously with the second alignment.