CN202081331U - All-in-one machine for high-concentration steam boiling, bleaching and pulping - Google Patents

Abstract

The utility model provides an all-in-one machine for high-concentration steam boiling, bleaching and pulping, which is a sealed horizontal rotary pulping tank with a sealed sandwich layer, wherein a tee joint of which the pipe openings face both sides is arranged in the part of a feeding passage, which is in the pulping tank, and a liquid drainage opening is arranged below the pulping tank; a sieve plate is laid below the pulping tank, and a discharging pipe of which the pipe openings are arranged sideways is arranged at one side of the pulping tank; a multi-way rotary valve is arranged at the axial line position of one end of the pulping tank, and comprises a valve body and a rotary valve core which are matched in a rotary and sealed way; and a medicinal liquor cavity passage penetrates through the center of the valve core, and is communicated with a medicinal liquor pipe which penetrates through the pulping tank. The technological purposes of strict control of pulping temperature and addition of required medicament by time periods under the non-stop condition of the pulping tank according to the requirements of technology indexes are realized by the multi-way rotary valve and the temperature control structure of the sandwich layer, and the all-in-one machine has the advantages of accurate and controllable temperature variation, transportation form of separating a heat source from pulp and the medicament, and integration of heating, soaking, the steam boiling and the bleaching, and has the technical characteristics of prominent high yield, energy saving and water saving.

Description

High-concentration boiling and bleaching slurrying all-in-one

Technical field

The utility model relates to the equipment of realizing pulping and digesting, in particular comprise boiling, bleach the pulping equipment that one is finished.

Background technology

The conventional nucleus equipment of paper-making pulping mainly contains rotary spherical digester, vertical digester, continuous steamer etc., it is by bearing high temperature, a series of conditions of cooking of high pressure and design, it can only be single finish cooking process, the pulping system of forming with other pulping equipment exist system form complicated, the waste liquid output is big, be difficult to recycling, environmental pollution pressure is very heavy, slurry transfixion in the equipment can not guarantee the uniformity consistency of slurry boiling.Chinese patent application: application number is 94109113.9, name is called " two-purpose machine for steaming and washing paper pulp " provides a kind of one to realize the horizontal rotor of boiling and washing operation, leach the space by slurry space in the middle of being separated with between filter screen and washing lotion on every side in the cylinder, discharge pipe is arranged on the cylinder one sideway swivel center line through swivel joint, the rotation center line opposite side, penetrate washing lotion and leach the space steam and discharging tube swivel joint are set, feed pipe is by in the straight-through cylinder in cylinder top; The disclosed another kind of patented technology scheme of Chinese patent application: application number is: 200810097869.7, name is called " multifunctional integrated pulping equipment of high-concentration boiling and bleaching ", one end of its horizontal rotor is axially arranged with charging aperture, and the other end axially is provided with heat source tube and drug liquid tube.Prior art with above-mentioned two technical scheme representatives exists the major technology problem to be: the one, and required pressure is big, the temperature height, soup alkali number height, the 2nd, the mode of heating that steam all adopts straight spray to heat up, heat up slowly, uncontrollable cooling rate, and steam is met condensation and is become water, the condensate water that long-time continuous heating process produces is more and more, cause slurry and liquor strength to reduce, need more steam of consumption and medicament to remedy, concentration value can not accurately be controlled, this thermal source is introduced mode can not be with the specification requirement fast cooling, can only lean on self slow heat release, cause the vexed overlong time of boiling, slurry is mashed excessively, fiber loss is big, yield reduces, the pollutant of stripping increases, and the part that approaches high temperature and high pressure steam is widely different with the part boiling degree away from steam, during latter's soft cook, the former is overcook, and excessive damage becomes the difficult degradation pollutant; The 3rd, have problems aspect reinforced: be evenly distributed as much as possible in order to make slurry and medicament, the former technology can only take the multilayer interval mode of one deck slurry one deck medicament reinforced, can not carry out other operation after the boiling, only carries out washing more; Though the latter can not destroy time segment dosing under the tank body closed state, there is the technical problem of slurry and medicament skewness equally, this problem is even more serious for the cylinder performance of big L/D ratio.Material is all most important for boiling and bleaching with the uniformity of medicine, otherwise the phenomenon of slurry, brown stock, half-done slurry, half black half white slurry can occur giving birth to.In sum, existing pulping by cooking equipment on not enough main surface that technique direction exists in can not accurately keep slurry reaction concentration constant relatively, can not accurately control temperature at random, can't realize technical problems such as continuity that boiling and bleaching are carried out and uniformity in same equipment.

Summary of the invention

The goal of the invention of the utility model patent application be to provide a kind of in a container at times order finish the boiling of paper-making pulping, the high-concentration boiling and bleaching slurrying all-in-one of bleaching process, it has technical indicators such as concentration, temperature and is easy to accurate control, easy to operate technical characterstic.High-concentration boiling and bleaching slurrying all-in-one technical scheme provided by the invention, its major technique content is: a kind of high-concentration boiling and bleaching slurrying all-in-one, it is the horizontal pulping tank of sealing with closed sandwich, have with the horizontal central line is the rotary drive mechanism of axis, the pulping tank upper center is provided with feeding-passage, the pulping tank inside of feeding-passage is arranged with the threeway of the mouth of pipe towards both sides, and the pulping tank below is provided with leakage fluid dram, is laid on the pulping tank below and is provided with sieve plate; Pulping tank one end is provided with the laterally disposed discharge nozzle of the mouth of pipe; Pulping tank one end axis place is provided with the multichannel rotary valve, the multichannel rotary valve includes valve body and the rotary spool formation that rotatory sealing cooperates, spool is fixed on the pulping tank, the soup cavity connects spool central authorities, and be communicated with drug liquid tube in pulping tank, be evenly equipped with aperture on the drug liquid tube, being provided with the thermal source parallel with medicine liquid channel in the spool introduces cavity and draws cavity, compressed air is introduced cavity and is drawn cavity, the valve wall that valve body cooperates with valve core rotation is provided with thermal source and introduces annular groove and draw annular groove, compressed air is introduced annular groove and is drawn annular groove, corresponding with the corresponding annular groove respectively connection of each cavity, valve body is provided with the external pipeline that communicates with each annular groove, and the thermal source of external pipeline is gone into pipe and introduced cavity through thermal source successively, input pipe, the pulping tank interlayer, return pipe, thermal source is drawn cavity, external pipeline constitutes boiling and adds heat passage.

The high-concentration boiling and bleaching slurrying all-in-one technical scheme that the utility model provides; multichannel rotary valve and interlayer structure of controlling temperature realized under the non-stop-machine duty of pulping tank can be strict require to control the pulping tank temperature according to technical indicator; each pipeline pneumatic operated valve of pulping tank is implemented control automatically; add required medicament by the period; its variations in temperature is accurate; controlled; the thermal source of slurry and medicament and conveying or the isolated formula of low-temperature receiver structure; realized in the mash vessel by preimpregnation; the sequence of process steps of boiling and bleaching at times; continuous finish preimpregnation; boiling and bleaching action; the collection heating; soak into; boiling and bleaching in one; washing and dehydration in the middle of need not; can reach pulping physical index height; the technique effect that whiteness is high; the heat energy and the oxygen that produce in its oxygen enrichment bleaching process; before discharge, in blanching step, accumulated suitable oxygen enrichment air pressure in the pulping tank; at this moment open discharge nozzle; by the pulping tank internal pressure is that power outwards spurts form slurry automatically, and blowdown is smooth and easy.Adopt the three way type feeding-passage simultaneously and run through the interior drug liquid tube dosing structure of pulping tank, more be suitable for the big pulping tank of draw ratio, guaranteed that ladle addition is arranged evenly, medicament and slurry mix, have that charging interpolation, medicament uniform, that can not limit time, finish at times corresponding operation medicament by the paper-making pulping process order mix, temperature constant, easily control, change rapidly, comprehensively guaranteed the technological requirement of accurate pulping, have significant high yield, energy-conservation, the water saving technical characterstic.

Description of drawings

Fig. 1 is the axial sectional structure chart of general assembly of this high-concentration boiling and bleaching slurrying all-in-one

Fig. 2 is the E-E sectional structure chart of Fig. 1

Fig. 3 and Fig. 4 are respectively the axially and radially sectional structure charts of multichannel rotary valve.

The specific embodiment

High-concentration boiling and bleaching slurrying all-in-one of the present utility model, its concrete structure as shown in Figure 1, it is the horizontal pulping tank of sealing with closed sandwich A, have with the horizontal central line is the rotary drive mechanism of axis, the pulping tank both sides are rotated through bearing 150 and are provided with, its central authorities are set with gear wheel 30, drive through worm and gear and rotate.The pulping tank upper center is provided with feeding-passage 100, the pulping tank inside of feed pipe 100 is arranged with the threeway of the mouth of pipe towards both sides, this threeway can be to cut open the threeway 170 that identical a part of butt welding constitutes by two elbow bends, its charging inner face has slick and sly arc, resistance is little, slurry pours in pulping tank by threeway 170 to both sides, distribution in pulping tank is comparatively even, the pulping tank below is provided with a plurality of leakage fluid drams 80, be laid on the pulping tank below and be provided with sieve plate B, discharged pulping tank by leakage fluid dram 80 by the liquid matter of filtering; Pulping tank one end after slurrying finishes, has been accumulated suitable oxygen enrichment air pressure in jar by being arranged with the laterally disposed discharge nozzle of the mouth of pipe 90, and this air pressure is that power outwards spurts form slurry, has reached the technical purpose of smooth and easy blowdown.Axially run through in the pulping tank, be provided with drug liquid tube 101 by stay pipe 120 supports, be evenly equipped with aperture on the drug liquid tube 101, drug liquid tube 101 can also be as the input pipe of flushing water or oxygen.Be set with material toggling sheet 110 on the pulping tank tank skin, strengthen even stirring and mixing effect in the pulping tank rotation.Pulping tank one end axis place is provided with the multichannel rotary valve, as shown in Figure 3 and Figure 4, the multichannel rotary valve includes valve body 41 and rotary spool 42 formations that rotatory sealing cooperates, spool 42 is fixed on the pulping tank, soup cavity 43 connects and is arranged at spool central authorities, be communicated with pulping tank inner liquid medicine pipe 101, also being provided with the thermal source parallel with medicine liquid channel in the spool 42 introduces cavity 44 and draws cavity 45 and compressed air introducing cavity and draw cavity, low-temperature receiver is introduced cavity and is drawn cavity, valve body 41 is provided with thermal source introducing annular groove 144 and draws annular groove 145 and compressed air introducing annular groove 140 and draw annular groove 141 with the valve wall that spool 42 is rotatably assorted, low-temperature receiver is introduced annular groove and is drawn annular groove, corresponding with the corresponding annular groove respectively connection of each cavity, valve body 41 is provided with the external pipeline that communicates with each annular groove, and thermal source or low-temperature receiver external pipeline 46 are introduced cavity 44 or low-temperature receiver introducing cavity through thermal source successively, input pipe 50, pulping tank interlayer A, return pipe 60, thermal source is drawn cavity 45 or low-temperature receiver is drawn cavity, external pipeline 47 constitutes boiling heating or cooling channel.

Claims (2)

1. high-concentration boiling and bleaching slurrying all-in-one, it is the horizontal pulping tank of sealing with closed sandwich, have with the horizontal central line is the rotary drive mechanism of axis, the pulping tank upper center is provided with feeding-passage, the pulping tank inside that it is characterized in that feeding-passage is arranged with the threeway of the mouth of pipe towards both sides, the pulping tank below is provided with leakage fluid dram, is laid on the pulping tank below and is provided with sieve plate; Pulping tank one end is provided with the laterally disposed discharge nozzle of the mouth of pipe; Pulping tank one end axis place is provided with the multichannel rotary valve, the multichannel rotary valve includes valve body and the rotary spool formation that rotatory sealing cooperates, spool is fixed on the pulping tank, the soup cavity connects spool central authorities, and be communicated with drug liquid tube in pulping tank, be evenly equipped with aperture on the drug liquid tube, being provided with the thermal source parallel with medicine liquid channel in the spool introduces cavity and draws cavity, compressed air is introduced cavity and is drawn cavity, the valve wall that valve body cooperates with valve core rotation is provided with thermal source and introduces annular groove and draw annular groove, compressed air is introduced annular groove and is drawn annular groove, corresponding with the corresponding annular groove respectively connection of each cavity, valve body is provided with the external pipeline that communicates with each annular groove, and the thermal source of external pipeline is gone into pipe and introduced cavity through thermal source successively, input pipe, the pulping tank interlayer, return pipe, thermal source is drawn cavity, external pipeline constitutes boiling and adds heat passage.

2. high-concentration boiling and bleaching slurrying all-in-one according to claim 1 is characterized in that described threeway is to cut open identical part back butt welding by two elbow bends to constitute, and its charging inner face has slick and sly arc.

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