CN2329448Y - Open-type non froth flotation ink-removing machine - Google Patents

Abstract

The utility model relates to a flotation ink removing machine, belonging to the paper making field, and the utility model is an open type. The utility model is composed of a pulp inlet distributor 1, a floatation tank 2, and a pulp outlet and ink removing tank 3. The utility model adopts no foam floatation, upper and lower flow is alternately and repeatedly mixed, ink is discontinuously removed, and the technical feasibility is high. The power consumption of the floatation for one tone of pulp is between 10 KWH and 12 KWH, ink removing pulp yield can reach 89% to 91%, the ink removing rate can reach more than 98 %, and the requirement of producing various paper sheets can be met. The utility model has the advantages of easy fabrication, convenient operation, and low investment. The utility model is an ideal flotation ink removing device for waste paper.

Description

The still floatation and ink removing machine of open type

The utility model belongs to the still floatation and ink removing machine of open type of field of papermaking.

Existing floatation and ink removing machine roughly is divided into two big classes: first open type atmosphere die mould air self-suction type flotation cell, it two is the closed compressed-air actuated pressure flotation cells that advance, they all are to introduce air to mix, dissolve in secondary stock, thereby producing suitable bubble makes bubble adsorb ink particle suspension rising, then be accumulated into foam state with beyond the overflow mode device for transferring, and reach the purpose of separating printing ink.The eliminating of the two printing ink all is continuous.Therefore, theory thinks that the floatation deinking need have the participation of air.Its result makes quite a few paper pulp fiber lose with foam stream, has reduced paper pulp yield.Atmosphere die mould flotation cell needs several series connection and multistage to handle under the prerequisite that guarantees abundant deinking, because each flotation cell all must be equipped with the energy that independent stock pump provides to be needed, thereby the investment of equipment is big and installed capacity is big, floor space is also big, and the stock pump that also is prone to frequency leaks and exist successional fiber loss.Small paper mill only does one section deinking for minimizing equipment, and the good slurry of result runs off with foam to be increased greatly.If under the deinking process condition when or operational administrative improper, the air self-straw just very easily stops up, in case stop up then the efficient of flotation just will significantly descend, and the phase mutual interference also easily takes place in each flotation cell in running, directly influence the normal operation of equipment, cause the low and good slurry of flotation efficiency to run off.Only technical flow design rationally, the deinking process condition appropriately, just may make good use of atmosphere die mould flotation cell under operation and the strict control meticulously, the condition conscientiously safeguarded.The pressure flotation cell is the renewal product of traditional flotation cell, the pressure flotation cell is the disposable slurry that advances, so the equipment installed capacity is little, the apparatus arrangement of the overlapping compactness of multilayer makes floor space little, do not have the like that many troubles of atmosphere die mould flotation cell, its flotation efficiency height, stable and reliable for performance, operate easily and manage.But, necessary supporting air compressor, auxiliary devices such as cyclone separator also strengthen the investment of equipment, the corresponding increase of deinking power consumption.From investment and specification, present this equipment is only limited to big-and-middle-sized slurry paper plant to be selected for use, does not have the pressure flotation cell production of small dimension.The deinking production line paper pulp yield of above-mentioned two class flotation cells is respectively: atmosphere die mould 72～77%, pressure-type 81-85%.The yield of this explanation deinking slurry is still waiting to improve, and cost also is expected to reduce.

The purpose of this utility model is exactly at the deficiencies in the prior art part, designs the still flotation of a kind of low energy consumption, low input, high benefit: do not introduce air artificially in device structure, to reduce fiber loss; Going up dirty delivering replaces repeatedly: be exactly the ink particle that discharges light specific gravity when paper pulp floats on the liquid level from bottom to top under the finite concentration condition because of diffusion; Paper pulp is when stream send from the top down again, and the ink particle that has suspended makes the printing ink of accumulation really effective because of light specific gravity keeps motionless relatively state; Be interrupted venting: after flotation finishes, add water and printing ink, sicker and other light impurity are floated remove.Make simply, processing ease under the same conditions, is invested and is 10% of air self-suction type atmospheric pressure flotation cell, the technical feasibility height, economic and practical is strong, and joint slurry power savings is remarkable, ton slurry flotation power consumption is 10-12kwh, and the deinking pulp yield reaches 89%-91%, and the deinking rate can reach more than 98%.The solid shape printing ink in separating pulp, the still floatation and ink removing machine of the open type of the sicker in the separating pulp and other light impurity effectively.

In conjunction with the accompanying drawings the utility model structure is described in detail:

Fig. 1 is the utility model master pseudosection, and Fig. 2 is the utility model ground floor vertical view, and Fig. 3 is the utility model interlayer structure profile front view.Among the figure: 1. advance to starch distributor, 2. flotation cell, 3. pulp and printing ink removal slot.

Advancing to starch distributor 1 comprises: 11. advance to starch house steward-confession slurry, control slurry amount size; 12. send to the upper reaches Orifice plate-decompositions of cloth slurry advance to starch impulsive force with current stabilization, change and advance slurry and flow to current stabilization, cloth slurry front and back exist Produce immixture in the groove to obtain the fiber of uniform concentration and dispersion, starch to obtain along machine width direction cloth Even and stable flow velocity; 13. porous plate-before and after flowing out, further mix; 14. guide face-lead Stream is avoided forming the dead angle and producing laitance or build up printing ink at this at this; 15. overflow plate-at current stabilization Starch along the even cloth of machine width direction under the state.

Flotation cell 2 comprises: 21. dividing plates-manufacturing damping and separate printing ink forms printing ink and builds up environment; 22. frost boiling plate-diffusion with dividing plate 21 combinations, causes dirty sending to produce certain immixture, with Increase the suspension amount of liquid level curing ink; 23. the bottom land of chamfering-prevent heavy dead slurry makes things convenient in the groove and cleans.

Pulp and printing ink removal slot 3 comprise: certain water level in 31. overflow walls-maintenance flotation cell, pulp; 32. guide face-water conservancy diversion is to avoid big impact; 33. slurry outlet groove bottom land-collection slurries, and with it below grout outlet 34 flows in the sulculus; 35. the printing ink of overflow wall-venting flotation cell liquid level; 36. venting groove bottom land-collection printing ink, sicker and other light impurity, and the ink outlet 37 that it flows on the abutment wall discharged; 38. water seal wall-grout outlet 34 is produced the water seal effects in order to avoid be involved in air during pulp, rising slurry outlet groove liquid level causes big impact to alleviate slurries when overflow wall 31 flows through, and one deck flotation is down played the effect of cloth slurry; 39. the impact of transition between deflector-slow down slurry fluid layer.

01. broadside wall among the figure, 02. long abutment wall, 03. the clean-out opening of each sulculus (metal tube screw plug with the band silk before the start deinking clogs), 04. prefabricated board, 05. the armored concrete crossbeam that plays each layer of support flotation cell on the long abutment wall, 06. the armored concrete wall column of supporting traverse, 07. total grout outlet, the top of 08. each layer flotation cell.The two ends of 12. cloth of each piece horizontal positioned slurry orifice plate, 13. porous plates, 33. slurry outlet groove bottom lands, 36. venting groove bottom lands, 04. prefabricated board are all dropped on the long abutment wall 02 of equipment among the figure, its both sides parallel with broadside wall 01 are all dropped on corresponding wall or the plate, and squeegee with cement mortar, make the bright and clean no convex-concave of inner surface of equipment.The two ends of 15. overflow plates that each piece is vertically placed among the figure, 21. dividing plates, 22. frost boiling plates, 31 and 35, overflow wall, 38. water seal walls, 39. deflectors are all bright and clean with whole inner surfaces (hair side) of long abutment wall 02 doing of formula that be in line, and no convex-concave is joined with cement mortar.There is wall to be connected between the broadside wall 01 of two ends and the equipment of the deflector 39 between layer and layer, avoids fourth outside the slurries that deflector 39 flows down, to spatter.

The utility model adopts cuboid, the multilayer arranged superposed, and promptly each layer has all designed slurry outlet groove and venting groove, does not allow the printing ink of last layer flow to down one deck.Distance is 0.6-1.OM between adjacent two layers, also can only do one deck according to factory situation flotation cell.The material of selecting for use can be plank, plastic plate or angle bar, iron plate or cement, brick, concrete or half garden shape pipeline.

The utility model is not with any auxiliary device, so deinking system is simple, the paper mill that daily output deinking slurry is 3 tons only needs 10,000 yuan of investments just to can be made into.It makes simple, easy, the technical feasibility height, and economic and practical is strong, and installed capacity is little, and deinking slurry power consumption is low, and a ton slurry flotation power consumption is 10-12KWH.What the utility model was taked is to be interrupted venting, and is to shut down venting, and pulp density is different fully with floatation concentration during venting, and pulp density is extremely low during venting (can be controlled in 0-1%.Fiber loss is that the deinking pulp yield reaches 89-91% below the ton slurry 2KG during venting, and the loss of fiber is the loss of washing basically.The deinking rate can reach more than 98%, can satisfy the requirement of producing various paper, and dirt count can be controlled within the limits prescribed.Because the raising of flotation efficiency, the whiteness of deinking slurry can improve 1-2%, and the load of washing section also reduces to some extent.In addition, also have easy operation and control, can accurately carry out process conditions, equipment performance is reliable and stable, need not advantages such as maintenance substantially.Because to send be stably to the stream of paper pulp in deinking process, be repeatedly, so the sicker except that removal ink and other light impurity can be removed Reverse Cleaner multistage tandem system from after deinking better, the operating barrier of deinking slurry on paper machine is few.The utility model has the accommodation of broad to China ink grain diameter, except capturing trickle China ink, also have certain capture proportion slightly greatly, the ability of printing ink that particle diameter is big slightly.Shorten pulping process flow, reduce washing facility.Its deinking slurry cost specific pressure deinking device per ton is low more than 150 yuan, than low about 470 yuan of open type atmosphere die mould flotation cell, when developing in the paper mill, Guangdong Province, with full cement, brick, xoncrete structure with 1: the low input of 15-17 has replaced atmosphere die mould flotation cell in the past, produces 2.5 tons of qualified toilet papers daily.This equipment is comparatively ideal flotation deinking device for waste peper.

The utility model embodiment:

Material selection cement, brick and concrete.The stock pump flow that advances that deinking device is supporting is selected according to the effective width of equipment, with 15M ³/ HM gets final product.Every rice grain pattern slurry amount along the equipment effective width during operation is controlled at 875-11.6M ³/ HM.During operation, open the cover plate of each layer grout outlet 34 earlier and advance to starch valve on the house steward 11, and with the outer slurry concentration dilution of machine to scope D.8-1.3%, start stock pump then and send slurry to deinking device, slurries are sent into deinking device from advancing to starch house steward 11, after mixing, pass cloth slurry orifice plate 12, and mix once more in porous plate 13 front and back, the end face that rises to overflow plate 15 then distributes equably along the machine width direction, slurries in the flotation cell of forming by some dividing plates 21 and some frost boiling plate 22 on dirty giving, alternate repetition carries out, printing ink, sicker and other light impurity constantly are suspended near the static liquid level in dividing plate 21 inflow sides.Last slurries flow in the slurry outlet groove from overflow wall 31, guide face 32, concentrate at grout outlet 34 places, do not penetrate in the following sulculus with not being with air, the end face that rises to water seal wall 38 distributes equably along the machine width direction, and then flow to the flotation cell of one decks down by deflector 39, through replacing repeatedly, final, slurries flow out outside the deinking device from the grout outlet 07 of bottom.Cover grout outlet 34 if be surrounded by the cement brick of the soft end of felt layer with a bottom, make its slurry outlet groove not have leakage substantially, at leisure from advancing to starch the waste water that house steward 11 adds clear water or recovery, then the slurry outlet groove water level begins to rise, the water level of end face in flotation cell that rises to overflow wall 31 rises, flow direction just changes when water level is raised to the end face of dividing plate 21, send from alternatively up and down stream to become the orthoscopic level and flow forward, this moment, the flotation cell and the bottom of slurry outlet groove and the slurries at middle part were initially located in the quiescent setting state.The slurries of top liquid level layer are along with the continuation adding pulp density of water can be more and more lower, when water level rises to the end face of overflow wall 35, printing ink, sicker and other light impurity and the part paper pulp fiber that suspend flow in the venting groove with water, outside the ink outlet 37 outflow machines from the side, and be to comply with near arriving outside the order outflow machine far away, the printing ink up to first dividing plate 21 place is discharged into the venting groove and just stops to add water.If the end face that water level rises near overflow wall 35 just stops to add water, slowly add water again about 20min at interval, then venting does not have fiber loss substantially, and reaches desirable effect.In the venting overall process, the liquid level of flotation cell should be without any agitaions such as stirring, waves, in order to avoid the part heavy printing ink of suspension is deposited to again go in the slurry and has reduced deinking efficient.In when beginning operation next time, remove the cement brick cover plate of grout outlet 34 earlier, treat that the slurry outlet groove liquid level drops to overflow wall 31 end faces and the beginning can advance to starch when following.Stop into stock pump during shutdown earlier stopping to send slurry, and send into clear water or reclaim about waste water 5min, make that paper pulp fiber reduces in the machine as far as possible from advancing to starch house steward 11.Cover the grout outlet 34 of the most last layer (being bottom) then with cover plate, the grout outlet 34 that just covers last layer (layer second from the bottom) with cover plate when making this layer water level rise to end face near overflow wall 35 makes the water of its last layer no longer flow to this layer.Follow the prescribed rules, after the water of each layer is all filled it up with, just stop to add water from advancing to starch house steward 11.Paper pulp sufficient standing precipitation in the standby.Approximately can add a spot of water to ground floor at leisure behind the 15-20min, the printing ink, sicker and other light impurity that close on ground floor overflow wall 35 begin to overflow to the venting groove outside the 37 eliminating machines of hole, in adding in the water process of not stopping, be positioned at printing ink on slurry distributor 1 liquid level into and also flow to the venting groove and get rid of.Turn off after the printing ink of ground floor, sicker and other light impurity are all got rid of outside the machine from advancing to starch the water that house steward 11 enters, the water that overflow wall 35 flows out slowly reduces, up to not having.Open the cover plate of the grout outlet 34 of ground floor more slightly, a spot of water just slowly flows to the second layer, makes the second layer be in the venting state.Follow the prescribed rules, till the printing ink of bottom is excluded entirely, just cover the grout outlet 34 of layer second from the bottom.The venting operation is promptly accused and is finished.In general, every 24H venting gets final product for 1 time, and per tour venting 1 time is good when handling big printing ink paper pulp.With the said method venting is best.Also can be only to certain one deck venting or which floor venting simultaneously.

During stopping production, cleaning of the present utility model can be taked from the beginning to the end or carry out from tail order to the end, or which floor cleans simultaneously.For using water wisely, clean earlier last sulculus of bottom, that cleans ground floor at last advances to starch distributor.The abundant thin up of machine domestic demand before cleaning, make paper pulp flow to down operation goes as far as possible, during cleaning, open slurries in clean-out opening 03 removal slot earlier, always starch direction inflow clear water or recovery waste water again and can clean (indivedual grooves need artificial assisting) automatically, cleaning fluid all enters reuse again in the ground feeder.After cleaning up that this stopple is tight, always starch direction again and clean the 2nd.

Claims (2)

1. the still floatation and ink removing machine of open type is characterized in that forming by advancing to starch distributor (1), flotation cell (2), pulp and printing ink removal slot (3);

Advancing to starch distributor (1) comprising: the cloth slurry orifice plate (12), porous plate (13), guide face (14), the overflow plate (15) that advance to starch house steward (11), send to the upper reaches;

Flotation cell (2) comprising: the bottom land (23) of dividing plate (21), frost boiling plate (22), chamfering;

Pulp and printing ink removal slot (3) comprising: overflow wall (31), guide face (32), slurry outlet groove bottom land (33), grout outlet (34), overflow wall (35), venting groove bottom land (36), ink outlet (37), water seal wall (38), deflector (39);

Also comprise in addition: armored concrete crossbeam (05), armored concrete wall column (06), the total grout outlet of deinking device (07), each layer flotation cell top (08) on broadside wall (01), long abutment wall (02), each sulculus clean-out opening (03), prefabricated board (04), the long abutment wall;

The two ends of the cloth slurry orifice plate (12) of horizontal positioned, porous plate (13), slurry outlet groove bottom land (33), venting groove bottom land (36), prefabricated board (04) are all dropped on the long limit stifled (02) of equipment, the both sides parallel with broadside wall (01) are all dropped on corresponding wall or the plate, sew and mend with cement mortar;

Vertically the two ends of the overflow plate of placing (15), dividing plate (21), frost boiling plate (22), overflow wall (31) and (35), water seal wall (38), deflector (39) join with cement mortar with the inner surface of long abutment wall (02), layer with layer between two ends and the broadside wall (01) of deflector (39) between be connected with wall.

2. deinking device according to claim 1 is characterized in that adopting cuboid, and flotation cell can be that one or more layers is overlapping, and overlapping each layer of multilayer all has slurry outlet groove and venting groove.

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