CN2454402Y - Two-net wash hollander - Google Patents
Two-net wash hollander Download PDFInfo
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- CN2454402Y CN2454402Y CN 00265099 CN00265099U CN2454402Y CN 2454402 Y CN2454402 Y CN 2454402Y CN 00265099 CN00265099 CN 00265099 CN 00265099 U CN00265099 U CN 00265099U CN 2454402 Y CN2454402 Y CN 2454402Y
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- roller
- pulp
- roll
- dehydration
- dehydration roll
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Abstract
The utility model relates to a two-net pulp washing machine which is mainly characterized in that the pulp roller feeding part of each dehydrating roller is provided with spray pipes (24, 19, 18, 15, 8) except a first dehydrating roller (23) after pulp feeding, and the lower part of each dehydrating roller is respectively provided with an independent water receiving tank (25, 22, 20, 17, 13, 30); meantime, the utility model has the functions of pulp concentration and washing, and the working concentration and the pulping concentration are higher than that of pulp treatment.
Description
The utility model relates to the slurry treatment facility of dewatering of pulp and washing in the pulping and paper-making, specifically a kind of double-screen pulp-washing machine.
Existing various black liquor or pulp washing apparatus are as acroll press washer, Double-screen filter press, horizontal belt wash engine, spiral net belt pulp washing machine etc.Wherein in the acroll press washer course of work between fiber and the fiber, exist violent mutual friction between fiber and the equipment, therefore, consumption of power is too big, and efficient is too low, and single device only can be used for concentrating of paper pulp, and can not reduce the concentration of the non-fiber roundel of liquid in the paper pulp, promptly do not have cleaning function, again since the physical dimension of treatment hole much larger than the single fiber size, the fiber loss rate is too high; And in the Double-screen filter press course of work, fiber and upward do not have relative motion between off line, so there is not the problem of friction mutually, between fiber and the fiber, also not friction mutually on thickness direction, being compressed, therefore the consumption of power of Double-screen filter press is very little, it only is acroll press washer about 1/20, and the mesh physical dimension is very little, the fiber loss rate is very low, but its unit also can only solve the thickening problem of paper pulp, and can't resolve the washing problem, horizontal belt wash engine and spiral net belt pulp washing machine (seeing Chinese patent 90205627.1) all are that the swabbing action that adopts vacuum pump or fan negative pressure to be produced is extracted the liquid in the paper pulp repeatedly, it has the detersive efficiency height, the little advantages such as (being that water consumption is low) of dilution gfactor, but it need be equipped with external power source, as generation swabbing actions such as vacuum pump or fans, so not only power consumption big (being more than 20 times of Double-screen filter press), the equipment manufacturing cost height, and it is low to advancing to starch concentration requirement, pulp concentration also lower (being no more than 15%), the turnover rate of fiber is higher.
The purpose of this utility model is to manufacture and design a kind ofly has simultaneously that paper pulp concentrates and washing function, and power consumption is low, equipment manufacturing cost is low, dilution gfactor is little, working concentration and pulp concentration height, novel double-screen pulp-washing machine that the fiber loss rate is low.
The purpose of this utility model is achieved in that a kind of double-screen pulp-washing machine, comprise the pulp distributor that is arranged on the support, by live-roller, the correction roller, tightening roller and dehydration roll support the online that realizes the closed circulation motion, by live-roller, deflector roll, the correction roller, tightening roller and dehydration roll support realizes the off line of closed circulation motion, the scraper that offsets with live-roller respectively, be arranged at online respectively, wash the net sparge pipe on off line, it is characterized in that at least one dehydration roll paper pulp except that advancing to starch back first dehydration roll goes into the roller place and be provided with sparge pipe, the below that is provided with the sparge pipe dehydration roll is equipped with an independently water receiving tank.Advance slurry back first dehydration roll and be the surperficial hole roller that is provided with hole, all the other dehydration rolls are smooth roll.Respectively there is a sealing device at the two ends of at least one dehydration roll in described dehydration roll, and described sealing device is made up of running roller and expansion tightening wheel, band.First dehydration roll at least one dehydration roll paper pulp is afterwards gone into the roller place and is provided with support online or off line deflector roll.
Paper pulp is evenly distributed in down on the net through pulp distributor, and it is overlapping with online that off line drive paper pulp walks to the dehydration roll place, and paper pulp just is between two nets, when the dehydration roll, utilizes the tensile force of net to make on the slurry thickness direction and is compressed, thereby realize the purpose of dehydration.In the process of many dehydration rolls to dewatering of pulp, constantly the paper pulp in the net to be washed with wash tub pipe, the process of this dehydration cycle is exactly the process to pulp washing.In this process, a water receiving tank is all arranged under every dehydration roll, flushing water can recycle, and the black liquor of maximum concentration directly enters wastewater disposal basin.Paper pulp after the washing is attached on the upper and lower net and is wiped off by scraper at process live-roller place, flows to stock tank, finishes whole dehydration washing process.
The utility model compared with prior art can have paper pulp simultaneously and concentrate and washing function, and have the following advantages: the one, and it is little to be equipped with power, and power consumption only is 1/tens even 1/tens of other washing device; The 2nd, simple in structure, low cost of manufacture; The 3rd, working concentration can be controlled in more than 10%, and pulp concentration can reach more than 30%, and the fiber loss rate is extremely low.
Now in conjunction with the accompanying drawings and embodiments the utility model is further specified:
Fig. 1 is a kind of work schematic diagram of double-screen pulp-washing machine.
Fig. 2 is a kind of structural representation of double-screen pulp-washing machine.
Fig. 3 is a kind of sealing device partial schematic diagram of double-screen pulp-washing machine.
A kind of double-screen pulp-washing machine, comprise the pulp distributor (1) that is arranged on the support (36), by live-roller (11), correction roller (6), tightening roller (2) and dehydration roll (4,5,7,9,16,23) support the online (3) that realizes the closed circulation motion, by live-roller (10), deflector roll (14,26,27), correction roller (21), tightening roller (28) and dehydration roll (4,5,7,9,16,23) support off line (12) of realizing the closed circulation motion, respectively with live-roller (10,17) scraper that offsets (29), be arranged at online (3) respectively, wash net sparge pipe (34) (35) on off line (12), it is characterized in that at least one dehydration roll paper pulp except that advancing back first dehydration roll of slurry (23) goes into the roller place and be equipped with sparge pipe (24,19,18,15,8), be provided with sparge pipe (24,19,18,15, the below of dehydration roll 8) is equipped with an independently water receiving tank (25,22,20,17,13,30).Described double-screen pulp-washing machine advances slurry back first dehydration roll (23) and is the surperficial hole roller that is provided with hole, and all the other dehydration rolls are smooth roll.Respectively there is a sealing device at the two ends of at least one dehydration roll in described dehydration roll, and described sealing device is made up of running roller (37,38) and expansion tightening wheel (32), band (33).First dehydration roll (23) at least one dehydration roll paper pulp is afterwards gone into the roller place and is provided with the deflector roll (31) that supports online (3) or off line (12).
In the embodiment shown in fig. 1, online (3) and off line (12) driving rollers (10) (11) drive makes cycle operation, respectively put a scraper (29) on the live-roller (10) (11), online (3) utilizes tightening roller (2) tensioner, prevent sideslip with correction roller (6), off line (12) utilize tightening roller (28) tensioner, prevent sideslip with correction roller (21), and deflector roll (14) (26) (27) has been added in online, be equipped with pulp distributor (1) in deflector roll (26) (27) top, the common overlapping dehydration roll (4) (5) (7) (9) (16) (23) that passes through of online (3) and off line (12), every dehydration roll put a water receiving tank (13) (17) (20) (22) (25) (30) and sparge pipe (8) (15) (18) (19) (24) is formed wash mill.In the course of work, clear water is sprayed onto on the paper pulp by sparge pipe (8), extrude cleaning solution to water receiving tank (30) by dehydration roll (7), the cleaning solution in the water receiving tank (30) enters sparge pipe (15) and is sprayed onto on the paper pulp, extrudes cleaning solution to water receiving tank (13) by dehydration roll (9) again.The rest may be inferred, and the washings in the last water receiving tank (25) are used for dilution and enter the interior paper pulp of pulp distributor (1), and the black liquor of the maximum concentration in the water receiving tank (22) enters the black liquor treatment system.
Clean result for strengthening pulp, the water that guarantees the sparge pipe ejection can see through whole slurry layer thickness equably, except that first dehydration roll (23) can design the pore-forming roller, each props up the dehydration roll that adds sparge pipe and all can be designed to smooth roll afterwards, so that the water of sparge pipe ejection can all penetrate the whole thickness direction of paper pulp, prevent part washings " short circuit ".
Can be rebounded to some extent by the slurry layer of high compression in order to make dehydration roll dehydration back, so that can absorb more moisture content or be convenient to the abundant infiltration of moisture content, also the water for the sparge pipe ejection can directly be sprayed onto on the paper pulp, rather than by transferring on the paper pulp again behind one deck net, also can design the deflector roll (31) of a net at the inlet position of first dehydration roll (23) at least one dehydration roll afterwards, this deflector roll makes net and starches pull-up from contacting, sparge pipe (24) places before and after this deflector roll (31), also between net and slurry layer, so that the water of sparge pipe ejection can flow directly on the paper pulp.
Figure 3 shows that the less two ends pulp density that produces of net two ends the tension force problem and the phenomenon that may run slurry little eliminated than other position, can respectively design a sealing device at the two ends of at least one dehydration roll (4), the sealing device can be made up of one a group of running roller (32) and a band (33).
Claims (4)
1. double-screen pulp-washing machine, comprise the pulp distributor (1) that is arranged on the support (36), by live-roller (11), correction roller (6), tightening roller (2) and dehydration roll (4,5,7,9,16,23) support the online (3) that realizes the closed circulation motion, by live-roller (10), deflector roll (14,26,27), correction roller (21), tightening roller (28) and dehydration roll (4,5,7,9,16,23) support off line (12) of realizing the closed circulation motion, respectively with live-roller (10,11) scraper that offsets (29), be arranged at online (3) respectively, wash net sparge pipe (34) (35) on off line (12), it is characterized in that at least one dehydration roll paper pulp except that advancing back first dehydration roll of slurry (23) goes into the roller place and be provided with sparge pipe (24,19,18,15,8), be provided with sparge pipe (24,19,18,15, the below of dehydration roll 8) is equipped with an independently water receiving tank (25,22,20,17,13,30).
2. by the described double-screen pulp-washing machine of claim 1, it is characterized in that first dehydration roll (23) behind the slurry into is provided with the hole roller of hole for the surface, all the other dehydration rolls are smooth roll.
3. by the described double-screen pulp-washing machine of claim 1, it is characterized in that respectively there is a sealing device at the two ends of at least one dehydration roll in described dehydration roll, described sealing device is made up of running roller (37,38) and expansion tightening wheel (32), band (33).
4. by the described double-screen pulp-washing machine of claim 1, it is characterized in that first dehydration roll (23) at least one dehydration roll paper pulp afterwards goes into the roller place and be provided with the deflector roll (31) that supports online (3) or off line (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00265099 CN2454402Y (en) | 2000-12-14 | 2000-12-14 | Two-net wash hollander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00265099 CN2454402Y (en) | 2000-12-14 | 2000-12-14 | Two-net wash hollander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2454402Y true CN2454402Y (en) | 2001-10-17 |
Family
ID=33619558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00265099 Expired - Fee Related CN2454402Y (en) | 2000-12-14 | 2000-12-14 | Two-net wash hollander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2454402Y (en) |
-
2000
- 2000-12-14 CN CN 00265099 patent/CN2454402Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |