CN107604725A - Formula pulping equipment is ground after a kind of first powder - Google Patents

Abstract

The invention provides a powder-first-grinding type pulping equipment, which mainly includes a conical feed inlet device, a rectangular toothed roller device, a stirring device, a conical grinding roller device, a bevel gear transmission device and an inclined filtering device. Its characteristic is that the recycled paper is pulverized by a rectangular toothed roller first, and then the slurry is ground by a conical grinding roller. The present invention realizes the pre-crushing of recycled paper through the shearing force formed by the rectangular toothed roller device; through the rotation of the stirring device, the paper and liquid water are stirred to realize the immersion stirring and accelerated downward flow of the material liquid; through the high-speed rotating The conical grinding roller grinds the slurry to achieve fine grinding of paper; through the rotation of the inclined filter device, the separation of liquid water and slurry is realized.

Description

A pulverizing first and then grinding type pulping equipment

technical field

The present invention relates to a pulverizing first and then grinding type pulping equipment, in particular to a kind of pre-crushing of recycled paper through the shearing force formed by a rectangular toothed roller device, and realizes the material liquid by stirring the paper and liquid water through the rotation of the stirring device. The immersion stirring and accelerated downward flow, the fine grinding of the paper is realized through the high-speed rotating conical grinding roller grinding slurry, and the separation of liquid water and slurry is realized through the rotation of the inclined filter device, which belongs to the technical research and development field of pulping equipment in the paper industry .

Background technique

In the paper industry, the production of recycled pulp requires putting pulp boards, waste books, waste cartons, etc. into a hydropulper, and crushing them through the rotation of the rotor to make a uniform suspension slurry. However, due to the singleness of the working mode and structure of the current pulper, the following problems are caused: first, the pulping efficiency is low, especially when encountering hard recycled raw materials, such as hard cardboard, it is necessary to soak and stir the hard cardboard for a long time, It can be stirred evenly, which will easily lead to low overall efficiency; second, the slurry is not uniform, such as hard recycled raw materials. Although soaking and stirring for a long time, it is difficult to reach the required concentration due to the hardness of the raw material, and the efficiency of the rotor Limitation, easy to form fragments with uneven particle size during the pulping process, resulting in uneven slurry; third, water resources cannot be recycled, resulting in a large amount of industrial sewage, resulting in huge environmental pollution and water resource consumption.

Therefore, in view of the common problems in the existing pulping equipment such as low pulping efficiency, insufficient mixing, interruption of production cycle and inability to recycle water resources, comprehensive consideration should be given to the working mode and structure of the pulper, and a high-efficiency pulper should be designed. , a kind of pulping equipment with high pulp quality and water recycling.

Contents of the invention

The present invention aims at the common problems of low pulping efficiency, insufficient stirring, interruption of production cycle and inability to recycle water resources in the existing pulping equipment, and provides a comprehensive consideration from the working principle and production cycle of the pulper. The utility model relates to a pulverizing-first-grinding-type pulping equipment which can effectively solve the above-mentioned problems.

A kind of pulverizing first and then grinding type pulping equipment of the present invention adopts the following technical solutions:

A powder-first-grinding-type pulping equipment, mainly comprising a conical feed inlet device, a rectangular toothed roller device, a stirring device, a conical grinding roller device, a bevel gear transmission device and an inclined filter device, the conical feed inlet The device is mainly composed of a conical coil and an atomizing water nozzle. The atomizing nozzle is installed on the edge of the conical coil. The axis of the water nozzle is perpendicular to the axis of the zigzag roller; It is composed of sawtooth rolls, positioning bearings, bearing sleeves, end covers and fixing bolts. The two ends of the two sawtooth rolls are respectively installed with positioning bearings, bearing sleeves and end covers in sequence, and are fixedly connected by fixing bolts; the stirring device is mainly composed of trapezoidal Rotor; the conical grinding roller device is mainly composed of an upper grinding roller and a lower grinding roller, the small end of the conical coil is welded on the upper end of the upper grinding roller, the large end of the conical coil is welded with a plane circular steel plate, and the circular steel plate It is fixed on the inner wall of the barrel by bolts, and the lower grinding roller is installed on the support frame through a tapered roller bearing, and is connected to the transmission shaft for transmission; the bevel gear transmission is mainly composed of a bevel gear, a transmission shaft and a drive shaft, and the transmission shaft Connect the bevel gear A and the rotor, the driving shaft is connected with the bevel gear B and the motor, the driving shaft is installed horizontally through the barrel wall, and the transmission shaft is installed vertically on the support frame through the lower grinding roller; the inclined filter device is mainly composed of a brush wheel Composed of an inclined filter plate, the brush wheel is matched with a bevel gear C and a bevel gear B, the bevel gear C is welded to the upper end surface of the brush wheel shaft, and the inclined filter plate is welded to the inner bottom wall of the barrel.

The inclination angle of the conical coiled plate is 50°, and the depression angle of the water nozzle is 20°.

The rectangular toothed roll is a cylindrical roll structure of a rectangular cutting knife, and the outer circular end of the rectangular cutting knife has a triangular structure, the triangle taper is 30 °, and the gap between the two rectangular toothed rolls is installed. The outer end is driven through a gear set, and the two zigzag rollers rotate at the same speed and rotate in opposite directions.

The upper end surface of the upper grinding roller is a conical drum structure with a conical groove, and the lower end surface is a conical nail structure with a conical cone with a taper of 25°.

The inclined filter plate is a net-shaped inclined semi-elliptical structure. The inclined steel plate has a Φ4 through hole, and the through hole is divided into 5 circles from the inside to the outside. The number of through holes in each circle is 3*(2*n-1), and n is the circle. number.

The present invention installs the gap between two rectangular toothed rollers, and through this design, papers of different thicknesses can be quickly cut, that is, multiple layers of cardboard or books with different thicknesses can be cut at the same time; the outer circular end of the rectangular cutting knife is designed as a triangular structure , and the tip is oriented in the direction of rotary cutting. Through this design, the mechanical force can be concentrated on the tip first, forming concentrated stress on the surface of the paper, forming a broken opening in advance, reducing the force required in the next step of cutting, and improving the efficiency of paper crushing.

In the present invention, the upper end surface of the upper grinding roller is designed as a tapered drum structure, which can bear the gravity of the material liquid in the rotor stirring chamber and realize its sealing; that is, the main body of the upper grinding roller bears the gravity of the main material liquid, The ring steel plate is fastened to realize sealing.

In the present invention, the inclined filter plate is designed as a net-shaped inclined semi-elliptical structure. Through this design, the separation of slurry and liquid water can be realized, that is, the material liquid flows to the recess of the filter plate under the action of gravity after being ground by the grinding roller device. , the liquid water flows out through the filter hole, and the brush wheel rotates to sweep the slurry into the groove at the bottom of the barrel and discharge it.

The beneficial effects of the invention are: through the rectangular toothed roller device, the primary crushing of papers of different thicknesses and different hardnesses is realized; through the conical grinding roller device, the fine grinding of the primary crushed paper is realized to generate a uniform slurry; through the inclined filter device, the For the separation of slurry and liquid water, the separated regenerated water can be used repeatedly in the pulping process, that is, to realize continuous pulping production.

Description of drawings

Fig. 1 is a schematic sectional view of the overall axonometric structure of the present invention;

Fig. 2 is a schematic diagram of the overall external structure of the present invention;

Fig. 3 is the structural representation of trapezoidal rotor and transmission shaft among the present invention;

Fig. 4 is a schematic diagram of an axonometric view of the upper grinding roller in the present invention;

Fig. 5 is a schematic sectional view of the upper grinding roller in the present invention;

Fig. 6 is a schematic plan view of the upper grinding roller in the present invention;

Fig. 7 is a schematic diagram of the axonometric view of the lower grinding roller in the present invention;

Fig. 8 is a partial structural schematic diagram of the transmission device of the present invention;

Fig. 9 is a schematic diagram of the overall structure of the brush wheel of the present invention;

Fig. 10 is a structural schematic diagram of a rectangular toothed roll of the present invention.

Among them: 1. Tapered coil, 2. Barrel, 3. Upper grinding roller, 4. Support frame, 5. Inclined filter plate, 6. Slurry outlet, 7. Filtration water outlet, 8. Foot support, 9. Brush wheel, 10, lower grinding roller, 11, trapezoidal rotor, 12, rectangular toothed roll, 13, drive shaft, 14, bevel gear, 15, transmission shaft.

detailed description

Example:

As shown in Figure 1, a kind of pulping equipment of the present invention, which is pulverized first and then ground, mainly includes a conical feed inlet device, a rectangular toothed roller device, a stirring device, a conical grinding roller device, a bevel gear transmission device and an inclined filter. device. The tapered feed inlet device is mainly composed of a tapered coil 1 and an atomizing water nozzle. The rectangular toothed roll device is mainly made up of sawtoothed roll 12, positioning bearing, bearing sleeve, end cover and fixing bolt, and two sawtoothed rolls are matched in clearance. Stirring device is mainly made up of trapezoidal rotor 11 and transmission shaft 15. The conical grinding roller device is mainly composed of the upper grinding roller 3 and the lower grinding roller 10. The circular steel plate of the upper grinding roller is fixed on the inner wall of the material cylinder through bolts, the large circle in the middle is stuck on the raised ring on the inner wall of the material cylinder, and the lower grinding roller passes through the cone. The roller bearing is installed on the support frame and connected with the transmission shaft for transmission. The bevel gear transmission is mainly composed of three bevel gears 14, transmission shaft 15 and driving shaft 13. The transmission shaft 15 is connected to the bevel gear A and the rotor, the driving shaft 13 is connected to the bevel gear B and the motor, and the brush wheel 9 is connected to the bevel gear C. The drive shaft 13 is installed horizontally through the barrel wall, and the drive shaft 15 is vertically installed on the support frame through the lower grinding roller 10 . The inclined filter device is mainly composed of an inclined filter plate 5 and a brush wheel 9, the brush wheel 9 cooperates with a bevel gear C and a bevel gear B, the bevel gear C is welded on the upper end of the brush wheel shaft, and the inclined filter plate 5 is welded on the inner bottom of the barrel wall.

As shown in Figure 2, the slurry outlet 6 and the filtered water outlet 7 are welded on the bottom wall of the tank, the slurry outlet 6 is connected to the slurry area cleaned by the brush wheel 9, and the filtered water outlet 7 and the inclined filter plate 5 filter The outlet liquid water cavity is connected, and the structural lengths of the slurry outlet 6 and the filtered water outlet 7 are all smaller than the foot support 8.

As shown in Figure 3, the maximum diameter of the trapezoidal rotor 11 is smaller than the maximum diameter of the upper grinding roller 3, and is connected with the transmission shaft 15 by a key, and the length of the transmission shaft 15 is greater than the height of the upper grinding roller 3, and the trapezoidal rotor 11 is in the Under the transmission of the transmission shaft 15, there will be no frictional collision with the inner wall of the barrel 2 and the upper grinding roller 3.

As shown in Fig. 4, Fig. 5, Fig. 6 and Fig. 7, the upper grinding roller 3 and the lower grinding roller 10 are fit through the clearance of tapered nails, the upper grinding roller 3 is fixed on the barrel 2, and the lower grinding roller 10 and the lower grinding roller are connected through the transmission shaft 15 is connected by key, and rotates synchronously with power transmission shaft 15.

As shown in Figure 8 and Figure 9, the output torque of the motor is transmitted to the bevel gear A and the bevel gear C respectively through the driving shaft 13 and the bevel gear B, the bevel gear A is transmitted to the transmission shaft 15, and the bevel gear C is transmitted to the brush wheel 9 , and bevel gear A and bevel gear C turn in opposite directions, and the brush wheel 9 and bevel gear C are connected by welding to maintain synchronous speed. The brush at the lower end of the brush wheel 9 rotates to clean the unfiltered slurry on the inclined filter plate 5 to the slurry area.

As shown in Figure 10, the two sets of cutting structures are composed of sawtooth rollers 12, locating bearings, bearing rings, end caps and fixing bolts, fixed on the top of the barrel 2, and driven by gear sets. The speed of the two sawtooth rollers 12 Same, opposite rotation.

Claims (4)

1. after a kind of first powder grind formula pulping equipment, mainly include taper feed inlet device, square tooth form roll device, agitating device, Circular cone Burnisher apparatus, bevel gearing and tilt filtration device, it is characterised in that：The taper feed inlet device mainly by Taper roll bending and atomizing spray mouth composition, atomizing spray mouth are arranged on taper roll bending top edge, and water spout axis rolls with zigzag Roll axis antarafacial is vertical；The square tooth form roll device is mainly by zigzag roll, positioning bearing, bearing holder (housing, cover), end cap and fixation Bolt forms, and installation positions bearing, bearing holder (housing, cover) and end cap successively respectively at two zigzag roll both ends, is fixed by fixing bolt Connection；The agitating device is mainly made up of trapezoidal rotor；The circular cone Burnisher apparatus is mainly made up of upper grinding roller and lower grinding roller, Taper roll bending small end is welded on the upper section of grinding roller, the big end welding plane ring steel plate of taper roll bending, and ring steel plate passes through spiral shell Bolt is fixed on material tube inner wall, and lower grinding roller is arranged on support frame by taper roll bearing, and is driven with transmission axis connection；Institute State bevel gearing to be mainly made up of bevel gear, power transmission shaft and driving shaft, be driven axis connection bevel gear A and rotor, actively Axis connection bevel gear B and motor, driving shaft are horizontally mounted through cartridge wall, and power transmission shaft is vertically mounted on support frame through lower grinding roller On；The tilt filtration device mainly by bristle brush wheel and is tilted over filter plate and formed, and bristle brush wheel is matched somebody with somebody by bevel gear C and bevel gear B Close, bevel gear C is welded on hairbrush wheel shaft upper surface, and tilt filtration plate weld is in barrel inner bottom wall.

2. grind formula pulping equipment after a kind of first powder as claimed in claim 1, it is characterised in that：The square tooth form roll is rectangle The cylindrical rollers structure of shearing knife, the outer rounded ends of clipping rectangle knife leave triangular structure, 30 ° of triangle taper, two squares Tooth form roll seam is installed, and square backlash distance is 8mm.

3. grind formula pulping equipment after a kind of first powder as claimed in claim 1, it is characterised in that：The upper surface of the upper grinding roller is Swift structure, and have conical socket, lower surface is taper pin structure, and round platform taper is 25 °.

4. grind formula pulping equipment after a kind of first powder as claimed in claim 1, it is characterised in that：The filter plate that is tilted over is netted Semiellipse structure is tilted, inclined steel plate is provided withΦ4 through hole, through hole divide 5 circles from inside to outside, per ring through hole quantity 3* (2*n-1）, N is the number of turns.