SLS-type l flow pressure screen is my factory digestion and absorption developed a new type of recycled paper pulp import prototyping technology based on the development of screening equipment. The device characteristics of the design for the impurities in the recycled pulp as l flow structure can be widely used in a variety of waste paper pulp coarse screening, fine screening and screening of pulp before the paper machine. Improved SLS Series products power consumption is less than traditional UV screen 1/5, the imports of similar UV screen 1/3, with the good work of unparalleled performance and reliability, is a variety of domestic pressure screen for upgrading of recycled pulp processing products, equipment innovation part has been applied for patents in China.
Second, the main technical parameters:
名称
型号
|
筛孔尺寸(mm)
|
筛缝尺寸(mm)
|
进出浆浓度
(%)
|
生产能力(T/D)
|
动 力
(kw)
|
SLS50
|
Ф0.5-Ф5
|
H0.1-H1
|
0.1-6%
|
5-10
|
5.5-11
|
SLS100
|
Ф0.5-Ф5
|
H0.1-H1
|
0.1-6%
|
10-15
|
7.5-15
|
SLS200
|
Ф0.5-Ф5
|
H0.1-H1
|
0.1-6%
|
15-25
|
15-22
|
SLS300
|
Ф0.5-Ф5
|
H0.1-H1
|
0.1-6%
|
25-35
|
22-55
|
SLS400
|
Ф0.5-Ф5
|
H0.1-H1
|
0.1-6%
|
100-200
|
45-90
|
SLS500
|
Ф0.5-Ф5
|
H0.1-H1
|
0.1-6%
|
140-270
|
55-110
|
SLS600
|
Ф0.5-Ф5
|
H0.1-H1
|
0.1-6%
|
170-335
|
75-160
|
SLS700
|
Ф0.5-Ф5
|
H0.1-H1
|
0.1-6%
|
210-420
|
90-180
|
SLS800
|
Ф0.5-Ф5
|
H0.1-H1
|
0.1-6%
|
250-500
|
110-220
|
Third, it works:
Impurities in the pulp is well known that regeneration points of light impurities and heavy impurities in two parts. Traditional pressure screening by the upper feed, bottom of the slag, light and heavy impurities through the entire pulp screen area when dealing with chemical pulp, because the proportion of impurities in the pulp and quality is generally greater than the individual fibers, this structure helps to reduce the the residence time of the impurities in the device, but when processing recycled pulp this contains a lot of the smaller proportion of light impurities, it will greatly extend the residence time of the light impurities in the device, caused by the decline in the efficiency of screening and increase the rotor with the screen drum wear and even damage.
SLS series of up-flow pressure screen take the bottom of the slurry into the bottom row of heavy residue, the top row of the tailings and light residue upflow structure design, and effectively solve the above problems. Light impurities and pulp in the air naturally rise to the top of the slag discharge port, and heavy impurities into the body to the settlement in the end the Ministry of discharge. In this way, on the one hand, effectively shortening the residence time of impurities in the region of sieve, and reduce the possibility of impurities cycle, improve the efficiency of screening; the other hand to prevent damage caused by the weight of impurities on the rotor and sieve drum, to extend the useful life of equipment .
Fourth, the structure and properties:
A. Sieve drum: fine sieve sieve slit width H ≤ 0.15mm sieve drum can be imported, surface hard chromium plating process to improve wear resistance and service life of more than ten times that of the domestic like drum sieve. Other types of sieve drum supporting domestic manufacturers the best quality drum sieve to ensure that the device performance.
Two. Rotor rotor: fine sieve 3-6 rotor, the rotor is equipped with the rotor on the spindle ︌ the special structure of the rotor can be the same card equipment, high screening efficiency
3. Mechanical seal: a special graphite material sealing, divided into the ring and stationary ring. Static ring with a spring pressure on the snap ring with the seal water flush to prevent debris into a compact structure, safe and reliable, long service life.
4. Enclosure: cover and cylinder, the cylinder lower part has a cut to the slurry into the tube, the tube in the upper part has a slurry pipe and cover with slagging and flushing outlet.
5 Gear: including motors, pulleys, V-belt, the belt tensioning device, the spindle and bearings and so on.
Five, features and advantages:
(A) Features:
A. The lower part of the slurry into the upper part of the pulp to avoid the pipe cross.
Two. The steady base to open the retractable design for easy maintenance and replacement of belts, pulleys and positioning bolts.
3. High-power transmission and seals the overall handling, reduced maintenance downtime required.
4 sieve drum and rotor cleaning, adjustment, inspection and removal are very convenient.
5 Can be equipped with various types of drum sieve, such as plain, corrugated drum sieve.
6. Maximum operating pressure is designed to 875Kpa wide variety of application conditions.
(B) Benefits
A. Low power consumption: power consumption is fine sieve ≤ 5-8KWH / T-pulp, coarse screening power consumption ≤ 5KWH / T
Pulp, meet and exceed the most advanced level (10KWH / T plasma).
Two. Imported refined slot width is 0.15mm sieve drum set in a coarse screen, which can effectively remove small impurities in the pulp and size greater than 200um ink particles, in particular, is worth noting that the stickies in the pulp removal of up to 90% more than the most respected at home and abroad instead of the latest equipment technology and methods of various heat dispersion device (slit sieve filter with thermal dispersion method to solve the problem of stickies to see the South China University of system State Key Laboratory for pulp and paper written by Professor Chen Jiaxiang published in paper and paper "2000" slit screen instead of dispersing in the waste paper system!
3. Heavy impurities discharged into the sieve at the bottom of heavy cans, to prevent wear and damage of the rotor and sieve drum, reducing downtime.
4. Light impurities and rapid discharge of air from the top of the tail rotor mouth.
5 High screening efficiency, shorter residence time of impurities in the pulp screen area, and significantly reduce the possibility of impurities cycle.
6. Required into the plasma pressure.
VI instructions
A. Test
Pressure (1) should be thoroughly cleaned before the first boot pipe, cleaning, and opened the screen cover will enter the pressure screen impurities removed, close the top cover, screen pulley a few laps and turned by hand pressure, to ensure that no anomalies occurred.
(2) open into a slurry pipe, slagging tube valve, add water, until the air row net, close slagging valve. Open seal water, so the pressure is higher than the pressure of slurry into the 0.1-0.2MPa.
(3:00 (before the official launch of dynamic pressure screen motor, the pressure to screen the short-term rotation, confirming that no abnormalities.
(4) starting pressure screen feed pump, and gradually adjust to the operating concentration.
(5) adjust the slag discharge port valve to the appropriate location.
Two. Normal operation
(1) In normal operation, such as the slurry into the tube pressure or reduced pressure of the plasma tube, showed that the sieve clogging the feed pump should be closed and the slurry pipe valve, after a few seconds to start the feed pump, observe out of the slurry pipe pressure changes, if not normal, and should be shut down cleaning.
(2) The slag discharge tube blockage, should immediately open the dilution dilution water valve until the slag normal.
3. Stop operation:
(1) screen with the pressure of water or water diluted within the slurry;
(2) Turn off the feed pump;
(3) to continue to pressure screen add water to the slagging of water discharged to stop adding water;
(4) Close the pressure screen motor.
Seven, equipment installation:
A poured concrete foundation base map, I remain the basis of the bolt hole, and health.
2, the pressure on the screen moved to the concrete foundation to find positive, open the pressure screen superstructure, the processing of the flange on the shell surface after leveling the frame level of secondary grouting fixed.
The piping should make the slurry into the tube, the slurry pipe slagging possession of a specialized tube bracket support, should not be pressure on the screen as a stent, to avoid increasing the load pressure screen, pipeline installation pipeline internal force.
4, the slurry into the tube, slurry pipe and slag discharge tube with a horizontal configuration, plus elbow legislation, more than the height of pressure screen, then the level or the other direction configuration, so that pressure screen to maintain the charged state.
5, the concentration of the slag discharge tube than to the slurry pipe to prevent clogging in the elbows and valves before then 1 inch white water or diluted with water pipe, the connection is 45 degrees along the plasma flow direction, the dilution tube water pressure is higher than to plasma pressure 0.1-0.2MPa.
6, sealing the pipe and water pipe connections, water pressure is higher than the pressure of slurry into the 0.1-0.2MPa.
Eight, cleaning and maintenance
(A) Cleaning
1, the timely response to pressure screen clogging pressure screen cleaning.
2, open the pressure screen superstructure bolts, superstructure upgrade up to remove the pressure of water to clean screen inside the pulp group, the pulp residue removal, if they can not achieve the purpose of cleaning, the need for the demolition work of the sieve drum.
3, the demolition of the screen drum with lifting tools of the sieve drum is fixed on the screen cylinder, and the top of the top wire sieve drum, and then the hand chain hoist hanging drum sieve, and lifting tools hanging out together with the drum sieve, and then further cleaning.
4, after cleaning the sieve drum mount, and then the top cover to cover, with bolts tightened.
(B) Maintenance
1, the wear of the periodic inspection of the screen drum sieve (sewing), and the timely replacement of the sieve drum.
Regular inspection of the mechanical seal wear of the graphite ring and stationary ring promptly replaced.
Regular checks of seal water, rinse water pressure should be higher than to plasma pressure 0.1-0.2MPa, and otherwise to be shut down.
4 from the filling hole on a regular basis, added grease.
Nine, after-sales service:
Free guide to installation and commissioning.