CN2898093Y - Slurry-making accelerator - Google Patents

Abstract

The utility model relates to a pulping accelerator by which the pulping can be accelerated, which is so structured into the inner of the reaction tank of the pulping cooking equipment provided with a row of liquor duct body in which is provided with a mechanical design combination of extrusion, condensation, and kneading, and which is combined with a dissociation structure at the exit end at the upside of the discharging tube body; with the utilization of mechanical force, the raw material can be alternated between the high and low concentrations in the reaction tank, thus, a plenary commixture between the liquor and the raw material is achieved, which solves the most obstacle that the raw material provided by means of the existing technology cannot be mixed with the liquor uniformly; concurrently, the pulp quantity, yield, production efficiency, and economic benefit in the commercial process can be improved.

Description

The slurrying accelerator

Technical field

The utility model relates to a kind of slurrying accelerator, particularly a kind of consumption that reduces chemical agent, and can quicken the dissolving of the lignin in the raw material, and obtain the paper pulp manufacturing equipment of most fiber fast.

Background technology

Traditional at present or advanced pulping process has a variety of, but major part is a main flow with the chemical pulping method.Be to send in the closed container with chemical agent and pulping raw material (wood chip or other plant material), the controlled condition of mat temperature, pressure, time, dissolve the lignin (Lignin) in the raw material and obtain most fiber, make paper pulp through separation, promptly general alleged chemical pulping (Chemical Pulp).

With regard to the Type of equipment branch: the batch production type, as: rotary spherical digester (Fig. 1), vertical type digester (Fig. 2).Rotary spherical digester is that mat one ball-type pot a must rotate, and impels the soup raw material fully to mix; And upright pot b is fixed, circulates up and down by spray pump and carries soup to help the uniformity of chemical reaction.

Another kind is advanced continuously stewing device, is representative (Fig. 4) with Camille formula (Kamyr type) (Fig. 3) with Pandia formula (Pandia type).

The former is that many transverse tube heater c connect, auger conveyor is arranged with synchronous transport raw material and soup in the pipe, under High Temperature High Pressure, can compare the short time of batch (-type) passes through, and raw material must be sent into by mat high pressure feeding machine (screwfeeder) in the feed(raw material)inlet, in the end outlet that boiling is finished, slurry directly dissociates and makes paper pulp through fiberizer d; The latter, also do not have in main digester e inside and to make raw material that extruding be arranged during lid boils, concentrate, mediate the mechanical device of (kneader) and dissociate (defibrating), its boiling is that system is except increasing apparatus for feeding, some soups are systems, and wood chip is outside the flow process improvement of lid in the boiler, and itself and vertical type boiling vessel are similar.

The inventor is because the chip raw material of prior art is that (the soup consumption is bigger at low concentration, paper pulp raw material concentration is lower, also can be described as: high liquor ratio) under the state, be soaked in the digester liquor of High Temperature High Pressure and be free state, so can not show a candle to the effect that the utility model can produce high concentration, the utility model is that the raw material that impact produces that utilizes mechanical force rubs mutually, pushes and reaches kneading, rubbing and dissociation, impels soup to be able to finish in the shortest time to infiltrate through wood chip inner and reach the effect that steaming is fully separated.

Moreover it is to remedy above-mentioned disappearance that existing lid boils equipment, to improve liquor strength, increases consumption of chemical agent usually, reaches raising temperature and pressure and reaches target.But under this kind operating condition, the periphery of wood chip often take place excessively to steam because of liquor strength is too high separate (over cooking) so that fiber dissolved and impaired; Do not produce the result that deficiency (under cooking) separated in steaming because of inner soup infiltrates into the wood chip core fully again, yield (yied) therefore easily takes place reduce and the bad situation of quality.

According to above-mentioned existing digesting apparatus, for highly energy-consuming, the high medication rate and the long mode of production but obtain the cost of poor efficiency, low quality and high pollution (waste water), during the space that should have greatly improved.

Summary of the invention

This case inventor has the disappearance of stating existing various paper pulp manufacturing equipments in view of this, study intensively, and long-pending individual is engaged in the many years of experience of described cause, designs a kind of brand-new slurrying accelerator eventually.

The purpose of this utility model, aim to provide a kind of slurrying accelerator, it is to be provided with a spiral promoting shaft in the discharge opeing body, blade pitgh on the described spiral promoting shaft is designed to the kenel of convergent distance, be combined with the machinery combination of rubbing structure and delaminating structure again, and reach feeding, extruding, concentrate, mediate and dissociate, the operating type that multiple function links up and integrates, can reach the pulping with high density optimal design from the mashing off condition of low concentration, design with utilization mechanical force in the digestion process, the deficiency of assisted chemical reactions, thereby can reduce dosage, and can improve the output of paper pulp, quality and speed.

For reaching above-mentioned purpose, the utility model slurrying accelerator mainly is installed with a discharge opeing body in the reactive tank central interior, be distributed with a plurality of outages around the described discharge opeing body, and be equipped with a spiral promoting shaft in its axle center, the blade pitgh of described spiral promoting shaft is to be being arranged by big and little form from bottom to top, and is provided with a rubbing structure and a delaminating structure in the top in regular turn.

As mentioned above, to be that the centre portion on discharge opeing body and spiral shell cardan shaft is staggered be provided with several rod bars to rubbing structure wherein, promptly be equiped with several rotation rod bars on the spiral promoting shaft and several fixedly rod bars are being housed on the wall of discharge opeing body, described rotation rod bar and fixedly the rod bar be to be staggered up and down, and comparatively driving fit of crack between it is staggered, mediate the rubbing effect to reach, impel the soup osmosis and quicken to go deep into wood chip inside, reach the condition that steaming is fully separated; And delaminating structure is respectively at the relative up and down flute profile mill that is provided with discharge opeing body top in spiral promoting shaft upper end, make through the high concentration raw material of overcompression and kneading again through the friction of mill, with mechanical force it is produced violent dissociation, and can reduce the chance of fibrous fracture, and then effect that fiber dissociates and the intensity that has promoted paper pulp have been quickened.

When using according to above-mentioned slurrying accelerator, when spiral promoting shaft rotates, the slurries raw material of low concentration promptly is squeezed in the discharge opeing body by bottom land, utilize the convergent of blade pitgh and produce extruding, concentrated in discharge opeing body inside, the rubbing structure of setting up on cooperating again and the effect of delaminating structure, and reach the operation of mediating and dissociating simultaneously, and reach low medication rate and high efficiency, high-quality paper pulp manufacturing; Again, the slurrying that described device can circulate continuously reaches the economic virtue of suitability for industrialized production.

Description of drawings

Fig. 1 and Fig. 2 take off formula pulping equipment schematic diagram between existing;

Fig. 3 and Fig. 4 are existing continous mode pulping equipment schematic diagram;

Fig. 5 is the combination section of reactive tank of the present utility model;

Fig. 6 is the A-A cross section view of Fig. 5;

Fig. 7 is a flute profile mill schematic diagram of the present utility model;

Fig. 8 is the reactive tank combination section of another embodiment of the utility model.

Description of reference numerals: 1 reactive tank; 10 discharge opeing bodys; 20 spiral promoting shafts; 30 rubbing structures; 40 delaminating structures; 50 discharging bodys; 11 bellmouths; 12 supports; 21 helical blades; 22 plectrums; 31 rotation rod bars; 32 fixing rod bars; Flute profile mill on 41; 42 times flute profile mills; 51 leading-out portions; 52 valves; 101 feeding mouths.

The specific embodiment

Slurrying accelerator of the present utility model, device and feature thereof are lifted a preferable possible embodiments and are cooperated graphic being described in detail as follows:

Please arrange in pairs or groups Fig. 5 to shown in Figure 7, slurrying accelerator of the present utility model, it mainly is equiped with a discharge opeing body 10, a spiral promoting shaft 20, a rubbing structure 30 and a delaminating structure 40 and forms in a reactive tank 1, can be at raw material low concentration state, increase the uniformity that soup contacts with raw material, and then reach the minimizing medication and quicken slurrying efficient; Its feature exists:

Described reactive tank 1 central authorities of portion within it is installed with a discharge opeing body 10, be distributed with a plurality of outages 11 around the described discharge opeing body 10, and be equipped with a spiral promoting shaft 20 in its axle center, blade 21 spacings of described spiral promoting shaft 20 are to be being arranged by big and little form from bottom to top, and are provided with a rubbing structure 30 and a delaminating structure 40 in the top in regular turn.Again, above-mentioned discharge opeing body 10 bottom inlets can be horn-like, and also increase formation plectrum 22 accordingly at the diameter and the angle of inclination of described place blade 21, and be beneficial to slurry are stirred in the discharge opeing body 10, and can promote the upwards effect of extruding; In addition, the outage 11 of above-mentioned discharge opeing body 10 can be a kind of inner small and outside big bellmouth, cause its again the discharge water timesharing do not subject to the obstruction of wooden slag.

As above-mentioned structure, rubbing structure 30 wherein is staggered several the rod bars 31,32 that are provided with of the centre portion on discharge opeing body 10 and spiral shell cardan shaft 20, promptly be equiped with several rotation rod bars 31 on the spiral promoting shaft 20 and several fixedly rod bars 32 are being housed on the wall of discharge opeing body 10, described rotation rod bar 31 is that multilayer is staggered up and down with fixing rod bar 32, and the crack was driving fit between it was staggered, to reach the rubbing effect of mediating; And delaminating structure 40 is relative up and down flute profile mills 41,42 that are provided with discharge opeing body 10 tops in spiral promoting shaft 20 upper ends respectively, make through the raw material of overcompression and kneading again through the relative friction of flute profile mill 41 up and down and 42, to have quickened the effect that fiber dissociates; The abradant surface of described flute profile mill 41,42 is and is arranged like the staggered design of canine tooth shape (as Fig. 7), and following flute profile mill 42 is to be fixed in discharge opeing body 10 upper ends to be fixed, is to rotate synchronously and can slide up and down with rotating screw cardan shaft 20 and go up flute profile mill 42; Again, above flute profile mill 41 on the described delaminating structure 40, can be provided with a pressure apparatus 43, in order to crack and grinding pressure between controlling between two mills, a described pressure apparatus can be mechanical type (as shown in Figure 5), and also available air pressure or hydraulic type device are replaced.

See also shown in the embodiment of Fig. 8, device of the present utility model also must be equipped with a discharging body 50 around delaminating structure 40, and has extended a leading-out portion 51 at described discharging body 50, and is equiped with a valve 52 in described leading-out portion 51 bottom surfaces again; According to and can utilize valve-off 52 to allow paper pulp directly before the leading-out portion 51 of discharging body 50 and then discharge through dissociating, or valve 52 that will be is wherein opened and paper pulp through dissociating is dropped back within the reactive tank 1, and work such as pushing again, concentrate, mediate and dissociate repeatedly, paper pulp raw material can be had further to be decomposed, to obtain more careful paper pulp fiber, promote the quality of product; Offering a feeding mouth 101 in addition on the capping of described reactive tank 1, and can add the slurrying work that new wood chip material dissociates at any time, is a continous mode pulping device.

See also Fig. 5 and shown in Figure 8 again, when the utility model is implemented, wood chip is to be the state of low concentration and to help soup to mix uniformly with wood chip with biochemicals in reactive tank 1 time, when motor drives spiral promoting shaft 20 rotations, the plectrum 22 of helical blade 21 tail ends makes slurry send into the pipe from discharge opeing body 10 bottoms, described chip raw material and biochemicals are by the action that produces extruding between the helical blade 21 apart from the convergent form when carrying upwards simultaneously, and pass through outage 11 superfluous water is discharged, its concentration is concentrated gradually and improve, and can continue upwards to move to rubbing structure 30, mat is arranged closeer rotation and fixedly rod bar 31 and 32 relative motion, the work of rubbing is mediated in generation to raw material, then again by the delaminating structure 40 of upper end, with the slurry that is transported to discharge opeing body 10 tops dissociate work so that fiber dissociated fully and do not ruptured, can directly allow paper pulp send at last for use, or Open valve 52 drops in the reactive tank 1 again, the slurrying work that repetitive cycling is above-mentioned makes the dissociation efficiency of slurry higher.As above-mentioned, also can connect when the utility model is implemented and use, and reach the purpose of high efficiency and automated production by several identical reactive tanks 1.In addition, it is in addition firm that present embodiment can be provided with several support 12 at the internal face of reactive tank 1 and 10 of discharge opeing bodys, avoids discharge opeing body 10 to be subjected to spiral promoting shaft 20 and rotate and produce and rock.

This equipment can be handled, the fibre of plant raw material of draft class, as: straw, bagasse, straw, tawny daylily or bast fiber are all applicable; Especially can be used in open (open tank process), promptly in the slurrying under atmospheric pressure and the environment below 100 ℃ that waits of non-hermetically sealed container, utilize the utility model to adopt biochemicals, to help the development of biochemical slurrying new science and technology, seek new pulping process, water pollutes and reduction slurrying cost to reduce.

In sum, the utility model slurrying accelerator can reach really and make raw material be upgraded to high concentration by the low concentration commentaries on classics, it is to produce extruding by described discharge opeing body, the rubbing dissociation, can save the slurrying time, can reduce water and pollute because of reducing the soup consumption again, and reduce and destroy cellulose raising the efficiency, and then reduce the slurrying cost.

Claims (9)

1. slurrying accelerator, it is to be equiped with a discharge opeing body, a spiral promoting shaft, a rubbing structure and a delaminating structure to form in a reactive tank; It is characterized in that:

Described reactive tank central authorities of portion within it is installed with a discharge opeing body, be distributed with a plurality of outages around the described discharge opeing body, and be equipped with a spiral promoting shaft in its axle center, the blade pitgh of described spiral promoting shaft is to be being arranged by big and little form from bottom to top, and is provided with a rubbing structure and a delaminating structure in the top in regular turn.

2. slurrying accelerator as claimed in claim 1 is characterized in that: described discharge opeing body bottom inlet is horn-like, also increases the formation plectrum accordingly at the diameter and the angle of inclination of described place blade.

3. slurrying accelerator as claimed in claim 1 is characterized in that: the outage of described discharging tube body wall face is a kind of inner small and outside big bellmouth.

4. slurrying accelerator as claimed in claim 1, it is characterized in that: to be that the centre portion on discharge opeing body and spiral shell cardan shaft is staggered be provided with several rod bars to described rubbing structure, it is equiped with several rotation rod bars on spiral promoting shaft, several fixedly rod bars are housed on the wall of discharge opeing body, described rotation rod bar and fixedly the rod bar be to be staggered up and down.

5. slurrying accelerator as claimed in claim 1 is characterized in that: described delaminating structure is respectively at the relative up and down flute profile mill that is provided with discharge opeing body top in spiral promoting shaft upper end.

6. slurrying accelerator as claimed in claim 5 is characterized in that: above flute profile mill on the described delaminating structure, be provided with one in order to control the pressure apparatus in gap and grinding pressure between two mills.

7. slurrying accelerator as claimed in claim 6 is characterized in that: described pressure apparatus is mechanical type or hydraulic type device.

8. slurrying accelerator as claimed in claim 5 is characterized in that: be equipped with a discharging body around described delaminating structure, and extended a leading-out portion at described discharging body, be equiped with a valve in described leading-out portion bottom surface.

9. slurrying accelerator as claimed in claim 1 is characterized in that: described reactive tank top is provided with a feeding mouth.