High-efficiency pulp washing squeezer
A press and pulp washing technology, applied in the direction of washing/replacing pulp treatment liquid, pulp dehydration, etc., can solve the problems of only 10-12% pulp concentration, high power consumption, complex structure, etc., and achieve simple and novel structure , stable operation of equipment, and the effect of improving washing efficiency
Active Publication Date: 2012-10-17
YUEYANG FOREST & PAPER CO LTD
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Problems solved by technology
However, generally only low-consistency pulp feed and medium-concentration pulp discharge can be achieved, or high-concentration pulp feed and high-consistency pulp discharge can be achieved. It is difficult to achieve the purpose of low-consistency pulp feed and high-consistency pulp discharge
For example, the commonly used vacuum washing machine has an inlet concentration of 2-3%, and the outlet concentration can only reach 10-12%; twin-roll and screw presses require a higher inlet concentration (above 6%) to achieve high pulp concentration. Thick pulp (such as 20-30%), and there are problems such as complex structure and high power consumption, so the application is limited
Method used
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[0019] The present invention is further illustrated below in conjunction with the accompanying drawings and specific embodiments.
[0020] like figure 1 , figure 2 As shown, the present invention mainly consists of a slurry inlet tank 1; a network tank box 2; a washing spray pipe 3; a grid type washing drum 4; a bearing seat 5; a drain water leg pipe 6; Support 9; Adjustable blowing port 10; Squeegee plate 11; Upper drive net roll 12; Lower drive net roll 13; Tension roll 14; Upper press net 15; Lower press net 16; Pressure device 18; synchronous gear pay 19; transmission box 20; broken screw shaft group 21; spiral groove body 22; discharge port 23 and screw transmission device 24. Drum washers are made up of part numbers 1 through 7. The scraper type depulping device is composed of item numbers 8 to 11. The multi-roll press dehydration device is composed of item numbers 12 to 20. The crushing screw discharger is composed of item numbers 21 to 24.
[0021] When working,...
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The invention discloses a high-efficiency pulp washing squeezer. The high-efficiency pulp washing squeezer is characterized by comprising a drum-type washing device, a scraper type pulp stripping device, a multi-roll squeezing and dewatering device and a broken screw discharging device, wherein the scraper type pulp stripping device is arranged on one side of a screen surface of the drum-type washing device, the multi-roll squeezing and dewatering device is connected with the scraper type pulp stripping device, and the broken screw discharging device is arranged at the lower part of the multi-roll squeezing and dewatering device. According to the high-efficiency pulp washing squeezer, the structure is compact, the running of the squeezer is stable, the energy is saved, the consumption is reduced, the benefits are obvious, the combination of washing function and squeezing-dewatering function is realized, the requirements of feeding low-concentration pulp and discharging high-concentration pulp can be met by one squeezer, the technical problems which can be solved by a plurality different equipment in the production process are solved, and the final purposes of simplifying the process and improving the efficiency are achieved.
Description
technical field [0001] The invention relates to a high-efficiency pulp washing press, which belongs to the field of pulp and papermaking, and is suitable for washing and concentrating papermaking pulp, and can also be used for purifying and concentrating treatment of other fibrous materials. Background technique [0002] In the field of pulp and papermaking, washing and thickening pulp is an important process. In order to achieve different technological purposes, people have developed and designed various types of pulp washing equipment, such as drum vacuum pulp washer, twin-roll press squeezer, Fourdrinier pulp washer, screw extruder, rotary screen thickener and foreign DD pulp washer, etc. However, generally only low-consistency pulp intake and medium-consistency pulp discharge can be achieved, or high-concentration pulp feed and high-consistency pulp discharge can be achieved. It is more difficult to achieve the purpose of low-consistency pulp intake and high-consistency ...
Claims
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IPC IPC(8): D21C9/02D21C9/18
Inventor 周海东陈金山梁伟陈龙平
Owner YUEYANG FOREST & PAPER CO LTD