CN1083917C - Combined equipment for separating black liquid from paper pulp and its technology - Google Patents
Combined equipment for separating black liquid from paper pulp and its technology Download PDFInfo
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- CN1083917C CN1083917C CN99111061A CN99111061A CN1083917C CN 1083917 C CN1083917 C CN 1083917C CN 99111061 A CN99111061 A CN 99111061A CN 99111061 A CN99111061 A CN 99111061A CN 1083917 C CN1083917 C CN 1083917C
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Abstract
The present invention discloses a combined pulp black-liquor separation device and a technological process thereof, and the device is mainly formed by the series connection of four groups of compression roller machines provided with a cleaning and sorting machine, a concentrator and a drier, wherein a feed port of the cleaning and sorting machine is aligned to a pulp spraying chamber and is communicated with a pulp accommodating tank which forms a crossly arranged cylindrical piece; the cylinder wall is provided with a plurality of through holes, and a cleaning wheel is arranged inside the cylinder and covered inside a water stopping protective shell; the lower part of the cleaning wheel is provided with a feeding tank; bottom frames of the four groups of compression roller machines are designed to higher than a horizontal line successively in equal distance, and the lower parts of the bottom frames are all provided with the concentrator, the cleaning and sorting machine and a rotary spherical digester which are communicated with a water tank; components are arranged the same on each compression roller machine, wherein the back six rollers are designed into an upper and a lower whole structure, and each roller is coated by upper and lower polyester net; the concentrator is used for concentrating black liquor into solid objects, and the drier is used for making the solid into compound fertilizer.
Description
The present invention relates to a kind of combined black liquor separation equipment and process thereof, this equipment belongs to pulp treating apparatus in the paper-making industry.
As everyone knows, in the unprocessed discharging of the paper waste river environment seriously polluted threatened the both urban and rural residents's health and local agricultural production, this country is being taken a strong line, serious or administer and fail paper mill up to standard and close to blowdown.The waste water of paper-making industry mainly is when pulp treatment, be that water causes when rinsing out black liquor in the paper pulp, the waste water control in present middle-size and small-size paper mill does not have also that desirable technical measures can reach small investment, easily implement, both reliable and effective degree, and it can be taken like a shot by producer and be applied.The inventor has applied for one and has been entitled as the patent of invention 97248530.9 (authorizing) of " black liquor extractor " in 1997.11.11, this patent at first proposes to extract black liquor in the paper pulp with the pair roller fashion of extrusion, cleaning paper pulp traditional in the paper-making industry is fundamentally discarded, substitute traditional various pulp processing machineries with single black liquid extraction machine this moment, wash engine for example, the volume pulp grinder, beater, Water Extraction Machinery, pulp screen etc., because this breakthrough invention, from then on the governing problem that always makes us feeling the paper waste pollution sources that perplex for a long time can fundamentally be solved.For example by traditional generated by making paper with wheat straws technology: get the raw materials ready-boiling-flushing paper pulp-bleaching-papermaking, 250 tons of the average waters of white glazed paper per ton mainly are flushing paper pulp, wherein discharge black liquor and account for 80%.As seen its water consumption and blowdown flow rate are big has all reached quite surprising stage.The single black liquor extractor of inventor's initiative fully proves the feasibility of extracting black liquor with fashion of extrusion through operation after a while, also show in practice simultaneously to require further improvement and to satisfy the actual requirement of using, for example the effect of unit extraction black liquor is remarkable inadequately, because the bearing block structure of each pair roller is set as fixing respectively, so not only make structural arrangements comparatively numerous and diverse, and bring inconvenience for manufacturing, installation, adjustment and maintenance, for example adjust quite time-consuming, about do not wait and often cause damage; The polyester Netease that clads on the pressure roller is by mechanical failure etc.
The objective of the invention is to propose a kind of combined paper pulp separation equipment and process thereof, improve the bearing block mounting structure of various pressure rollers, set up the recovery rate that servicing unit further improves black liquor in the paper pulp, eliminate the impaired phenomenon of polyester Netease.
The technical measures that enforcement above-mentioned purpose of the present invention is taked are as described below: this combined black liquor separation equipment is mainly composed in series by four groups of pressure roller machines, an inspissator and a drying machine of configuration one cleaner; The cleaner charging aperture that wherein is positioned at first group of pressure roller machine front is set as the below outlet of aiming at the pulp blowing out storehouse, and can control the open degree of charging baffle plate by rotating members such as handwheel and leading screw, what be communicated with this charging aperture is a paper pulp tank, this paper pulp tank is that a horizontal cylindrical element is cladded in a rectangle blocking water protected shell, be provided with many through holes by the barrel of its cladding, be provided with one in this cylindrical element by motor-driven clearing matter wheel, respectively be provided with the broom closet that to open in the outside along front and back, the barrel periphery outside, be provided with a chute feeder between this blocking water protected shell below and the underframe, this chute feeder longitudinally is set as and is inclination in the past backward slightly, also be provided with a chain conveyor in the groove, promptly one sprocket wheel all is set, horizontal some feeding angle bar at interval again between the chain of both sides in its both sides, front and back end; The horizontal relatively stationary plane of the underframe of four groups of pressure roller machines except that first group with cleaner underframe stationary plane flushes, all the other each groups all equidistantly reduce one by one with one, wherein second group is lower than first group, the 3rd group is lower than second group, the 4th group is lower than the 3rd group and to exceed horizon one equidistant again, for example 50 millimeters; Each is organized pressure roller machine underframe below and is equipped with the cement tank, and wherein first group of pressure roller machine below tank is communicated with inspissator, and second group of pressure roller machine below tank is communicated with cleaner, and third and fourth group pressure roller machine below tank then is communicated with rotary spherical digester; Member configuration on every group of pressure roller machine is identical, promptly begin with exhibition net roller, and end at the stirring groove, vertically arrange along it by before and after middle, first, two rollers are respectively down, the exhibition net roller of last polyester webs, on its roll surface, be equipped with symmetry and be lambdoid evagination screw line, the 3rd roller is Φ 270 rollers, the 4th roller is Φ 480 rollers, be equipped with many leakage through holes along this two roll surfaces periphery, thereafter six rollers are Φ 270 rollers, wherein below two side shaft holders of three rollers respectively be located at and form overall structure on the longeron, two side shaft holders of three rollers respectively are located at and form overall structure on one on the longeron up, each is hinged on the rear column with a pivot pin should to go up both sides, overall structure rear end, the front end both sides respectively are hinged on up and down on the integrally-built longeron by an adjuster, and each horizontal band of this external upper and lower is transferred the accent net roller of bar device, below also horizontal the net roller; Last polyester webs cladding second is opened up net roller, the 3rd roller, goes up integrally-built three rollers and is raised the net roller, following polyester webs then clads the first exhibition net roller, the 4th roller, following integrally-built three rollers, crosses net roller and downward modulation net roller, wherein upper and lower polyester webs lap be from the second exhibition net roller through the 3rd roller around the 4th roller between upper and lower integrally-built three rollers, also just represent the pass course that paper pulp is extruded; Each stirring groove of organizing pressure roller machine terminal is equipped with the hydraulic pipeline of diluted pulp, and the stirring groove of the 3rd group of pressure roller machine also is provided with the bleaching liquid intake line; This inspissator is a pressure vessel, adopts the dividing plate hierarchy, and many straight-through pipe fittings of planting therebetween cause the concentrated solids that generates by means of rotary spherical digester part vapour pressure can circulate the first group of pressure roller machine extruding black liquor that is imported into; This drying machine also is a pressure vessel, makes the thickened solid thing that is imported into generate dried shape compound fertilizer by means of rotary spherical digester part vapour pressure.
Now the embodiment shown in conjunction with the accompanying drawings is further described combined black liquor separation equipment of the present invention and process thereof, wherein:
Fig. 1 is four groups of vertical rough package drawings of pressure roller machine of the combined black liquor separation equipment of the present invention.
Fig. 2 is the configuration schematic diagram of cleaner in the combined black liquor separation equipment of the present invention and first group of pressure roller machine.
Fig. 3 is the process chart of the combined black liquor separation equipment of the present invention.
By Fig. 1 and 2 as can be known, the charging aperture 2 of this cleaner is to be set as the pulp blowing out storehouse (not shown) of aiming at its top, can control the open degree of charging baffle plate 3 by rotating handwheel 6, because the barrel of paper pulp tank 5 is provided with many through holes, the paper pulp that loads in it is just extruded from these through holes when clearing matter wheel 4 rotates, some rigid foreign material are then scraped in the forward-and-rearward broom closet 1, can open the chamber door at the appropriate time takes out, the rectangle blocking water protected shell of cladding paper pulp tank 5 extends to chute feeder 10, chain conveyor 9 in the groove borrows feeding angle bar 8 horizontal between its chain that paper pulp is delivered to the front end of first group of pressure roller machine, promptly on the following polyester webs 18 between the first exhibition net roller 11 and the second exhibition net roller 12.
The technological process of the combined black liquor separation equipment of the present invention as shown in Figure 3.As known in the figure, black liquor extracts four times with fashion of extrusion by technological process of the present invention, and extraction rate of black liquor is reached at utmost, add circulating filtration water and bleaching liquid, just mean that also process of the present invention can fundamentally solve the paper waste problem of environment pollution caused really.
The pressing roll mechanism spare of four groups of serial connections is identical, and its effect is also identical, and for example first group of pressure roller machine mainly is the black liquor in pushing paper pulp, and black liquor then is imported into the inspissator (not shown) through liquid pool; The paper pulp that second group of pressure roller machine pushed be pushed through first group of pressure roller machine and in its terminal stirring groove 25 by thin up, the black liquor that squeeze out this moment is imported into cleaner through liquid pool; The 3rd group of paper pulp that the pressure roller machine is pushed be pushed through second group of pressure roller machine and in its terminal stirring groove 25 thin up, the black liquor that extrude this moment is imported into rotary spherical digester through liquid pool; The 4th group of paper pulp that the pressure roller machine is pushed pushed through the 3rd group of pressure roller machine, except that thin up in its terminal stirring groove 25, and was added into bleaching liquid, and the liquid that be extruded this moment also is imported into rotary spherical digester.Be provided with many leakage through holes for promoting squeezing effect along the roll surface periphery of the 3rd roller 19 and the 4th roller 21 simultaneously.So just make former technology paper per ton need sewage effluent to become for 250 tons and can extract 5 to 6 tons of black liquor, these black liquor again can be through concentrated, the dry compound fertilizer that generates.
Four groups of pressure roller machines equidistantly are fixed with one one by one above the horizon and are beneficial to the butt joint of respectively organizing between the pressure roller machine, the paper pulp of group is just in time discharged the feed end in the back group before making, also help cement tank (being represented by dotted lines among the figure) thereunder is set, because these tanks are essential to constituting liquid circulation.
The cladding second exhibition net roller 12, the 3rd roller 19, raise the last polyester webs 22 of three rollers on net roller 20 and the last overall structure 22 and clad the first exhibition net roller 11, the 4th roller 21, all stable operation by means of opening up accent bar device that symmetry on the net roller 11,12 is herringbone screw line and accent net roller 13,20 of three rollers, downward modulation net roller 13 and the following polyester webs 18 of crossing net roller 16 in the whole mechanism 17 down.Paper pulp is in just (representing as the thick line among Fig. 2) be extruded by the stirring groove 25 that proceeds to terminal between last polyester webs 22 and following polyester webs 18.
Pressure roller machine of the present invention respectively is set as upper and lower overall structure 14,17 to two side shaft holders of upper and lower three rollers, both sides, overall structure 14 rear end respectively are hinged on the rear column 24 with a pivot pin 23 on this moment, the front end both sides respectively are hinged on the longeron of upper and lower overall structure 14,17 by an adjuster 15, and above-mentioned overall structure provides great convenience for manufacturing, installation, adjustment and maintenance.
This inspissator (not shown, separate case application) is a vertical pressure vessel, by upper and lower shelf-shaped component layer structure, many through holes on the dividing plate, concentrate on the middle part especially, many straight-through pipe fittings of planting between the dividing plate of configured separate form the path that circulates to the black liquor that is full of container.Introducing rotary spherical digester part vapour pressure just can make black liquor circulate up and down and mix and generate the solid particle sinking like this.This drying machine (not shown, separate case application) is a horizontal pressure vessel, and it is rotating being set as, and rabbling mechanism is housed in the container, makes the thickened solid thing that is imported into by rotary spherical digester part vapour pressure, generates dried shape compound fertilizer through heating, stirring and rotation.
It is according to the main component in the black liquor that the fashion of extrusion that the present invention proposes extracts black liquor: lignin, sugar, the ash liquid states such as the proportion that constitutes, viscosity that grade, take repeatedly technological means such as pair roller extruding, the conveying of soft band, felt seepage, middle immersion, fiber infiltration, extruding cleaning, make that extraction rate of black liquor is increased to more than 90% by about 75% of traditional developing technique in the paper pulp, work efficiency greatly improves, and the time and the materials of saving bleaching, reached and do not washed bleaching water reusable edible (about 50%) before floating.
Combined black liquor separation equipment of the present invention and technology thereof in the site test operation, show to reach following effect (by blank sheet of paper per ton) at least after testing:
Water saving 80% deducts 200 tons of black liquor dischargings; Year is saved 600,000 tons of waters;
Economize on electricity 70 to 80 degree, year saving electricity consumption 200,000 degree;
1/2 (pulp washing) of saving time can enhance productivity 1/6;
Save about 10 kilograms of bleaching liquid, 30 tons of year saving;
It is about 10% to improve the paper delivery rate, year 300 to 400 tons of blank sheet of paper of volume increase;
Black liquor can concentrate, the dry compound fertilizer that generates.
The combined black liquor separation equipment of the present invention and technology thereof have fundamentally been discarded water flushing sizing process traditional in the paper-making industry as can be known in sum, on technology and structure, done effective improvement by the situation of model machine running simultaneously, for example set up cleaner, inspissator, drying machine, bearing block changes overall structure into, pressure roller unit serial connection extruding etc., everything significantly improves extraction rate of black liquor, thereby can effect a radical cure the pollution of papermaking to environment.
In addition, this separation equipment can be set as plurality of specifications, for example is applicable to the rotary spherical digester of 25,30,35 cubic meters, just be matched in to produce 3000,4000,5000 tonnes paper mill per year, and also all applicable to the production of various paper.
Claims (5)
1. a combined black liquor separation equipment is mainly by four groups of pressure roller machines that dispose a cleaner, one inspissator and a drying machine compose in series, it is characterized in that, the cleaner charging aperture that is positioned at first group of pressure roller machine front is set as the below outlet of aiming at the pulp blowing out storehouse, and can control the open degree of charging baffle plate by rotating members such as handwheel and leading screw, what be communicated with this charging aperture is a paper pulp tank, this paper pulp tank is that a horizontal cylindrical element is cladded in a rectangle blocking water protected shell, be provided with many through holes by the barrel of its cladding, be provided with one in this cylindrical element by motor-driven clearing matter wheel, respectively be provided with the broom closet that to open in the outside along front and back, the barrel periphery outside, be provided with a chute feeder between this blocking water protected shell below and the underframe, this chute feeder longitudinally is set as and is inclination in the past backward slightly, also there is not a chain conveyor in the groove, promptly one sprocket wheel all is set, horizontal some feeding angle bar at interval again between the chain of both sides in its both sides, front and back end; The horizontal relatively stationary plane of the underframe of four groups of pressure roller machines is set as with cleaner underframe stationary plane flushes except that first group, all the other each groups all equidistantly reduce one by one with one, wherein second group is lower than first group, and the 3rd group is lower than second group, and the 4th group is lower than the 3rd group and to exceed horizon one equidistant again; Each is organized pressure roller machine underframe below and is equipped with the cement tank, and wherein first group of pressure roller machine below tank is communicated with inspissator, and second group of pressure roller machine below tank is communicated with cleaner, and third and fourth group pressure roller machine below tank then is communicated with rotary spherical digester; Member configuration on every group of pressure roller machine is identical, promptly begin with exhibition net roller, and end at the stirring groove, vertically arrange along it by before and after middle, first, two rollers are respectively down, the exhibition net roller of last polyester webs, on its roll surface, be equipped with symmetry and be lambdoid evagination screw line, the 3rd roller is Φ 270 rollers, the 4th roller is Φ 480 rollers, be equipped with many leakage through holes along this two roll surfaces periphery, thereafter six rollers are Φ 270 rollers, wherein below three rollers form overall structure, three rollers form overall structure on up, each is hinged on the rear column with a pivot pin should to go up both sides, overall structure rear end, the front end both sides respectively are hinged on by an adjuster, down on the integrally-built longeron, each horizontal one transfers net roller this external upper and lower, the also horizontal mistake net roller in below; Last polyester webs clads the second exhibition net roller, the 3rd roller, goes up integrally-built three rollers and raise the net roller, and following polyester webs then clads the first exhibition net roller, the 4th roller, following integrally-built three rollers, crosses net roller and downward modulation net roller; Each stirring groove of organizing pressure roller machine terminal is equipped with the hydraulic pipeline of diluted pulp, and the stirring groove of the 3rd group of pressure roller machine also is provided with the bleaching liquid intake line; This inspissator is a pressure vessel, adopts the dividing plate hierarchy, and many straight-through pipe fittings of planting therebetween cause the concentrated solids that generates by means of rotary spherical digester part vapour pressure can circulate the first group of pressure roller machine extruding black liquor that is imported into; This drying machine also is a pressure vessel, makes the thickened solid thing that is imported into generate dried shape compound fertilizer by means of rotary spherical digester part vapour pressure.
2. by the described combined black liquor separation equipment of claim 1, it is characterized in that each organizes the horizontal relatively stationary plane of pressure roller machine underframe all with a reduction one by one equidistantly, its value is 50 millimeters.
3. by the described combined black liquor separation equipment of claim 1, it is characterized in that, each organize the pressure roller machine below two side shaft holders of three rollers respectively be located on the longeron, two side shaft holders of three rollers respectively are located on one on the longeron up.
4. by the described combined black liquor separation equipment of claim 1, it is characterized in that each accent net roller of organizing on the pressure roller machine is equipped with accent bar device.
5. by the described combined black liquor separation equipment of claim 1, it is characterized in that, upper and lower polyester webs lap be from the second exhibition net roller through the 3rd roller around the 4th roller between upper and lower integrally-built three rollers, also just represent the pass course that paper pulp is extruded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99111061A CN1083917C (en) | 1999-07-30 | 1999-07-30 | Combined equipment for separating black liquid from paper pulp and its technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99111061A CN1083917C (en) | 1999-07-30 | 1999-07-30 | Combined equipment for separating black liquid from paper pulp and its technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1282818A CN1282818A (en) | 2001-02-07 |
| CN1083917C true CN1083917C (en) | 2002-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99111061A Expired - Fee Related CN1083917C (en) | 1999-07-30 | 1999-07-30 | Combined equipment for separating black liquid from paper pulp and its technology |
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| Country | Link |
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| CN (1) | CN1083917C (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2327716Y (en) * | 1997-11-11 | 1999-07-07 | 景荆管 | Extractor for black liquor of paper making process |
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1999
- 1999-07-30 CN CN99111061A patent/CN1083917C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2327716Y (en) * | 1997-11-11 | 1999-07-07 | 景荆管 | Extractor for black liquor of paper making process |
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| Publication number | Publication date |
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| CN1282818A (en) | 2001-02-07 |
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