CN102978987A - Vertical cooker - Google Patents
Vertical cooker Download PDFInfo
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- CN102978987A CN102978987A CN2012105669588A CN201210566958A CN102978987A CN 102978987 A CN102978987 A CN 102978987A CN 2012105669588 A CN2012105669588 A CN 2012105669588A CN 201210566958 A CN201210566958 A CN 201210566958A CN 102978987 A CN102978987 A CN 102978987A
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- filter plate
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Abstract
The invention discloses a vertical cooker, which comprises a cooker cover, a cooker body, a support, a blow-off valve, a liquor heating circulating device and a cooker charger, wherein the top of the cooker body is provided with a feeding hole; the bottom of the cooker body is provided with a pulp outlet; the cooker body comprises an upper section, a middle section and a lower section; the upper section of the cooker body is provided with a blow-off port; a blow-off blocking device is arranged in the upper section of the cooker body and below the blow-off port; at least one upper circulating liquor port and a liquor distribution device are arranged on the upper section of the cooker body and below the blow-off blocking device; the middle section of the cooker body is provided with a plurality of pumping pipe orifices; an annular filter plate is arranged on the inner wall of the cooker body and corresponds to the pumping pipe orifices; a plurality of diluent inlets are distributed below the annular filter plate on the middle section of the cooker body or in the upper circumferential direction of the lower section of the cooker body; a connecting pipe is arranged at the bottom pulp outlet of the lower section of the cooker body; the connecting pipe is provided with a spray port and a lower circulating liquor port; and the blow-off valve is arranged at the spray port. The vertical cooker is high in working efficiency and convenient for discharging.
Description
Technical field
The present invention relates to paper making equipment, relate in particular to a kind of vertical digester.
Background technology
The most of enterprises in pulp and paper industry of China, what adopt at present is batch cooking mostly, because continuous digesting apparatus wants high with respect to the investment cost of batch cooking equipment.As shown in Figure 1, traditional batch digester comprises pot cover 1 ', pot body 2 ', bearing 3 ', blow-off valve 4 ', medicine liquid heating circulating device (not shown), packer (not shown), pot body 2 ' top is provided with charging door 201 ', and pot body 2 ' bottom is provided with grout outlet 202 '.Although investment cost is low, technique and control are relatively simple, but owing to adopt the inner loop heating, namely adopt at pot body 2 ' middle part drawing liquid, through the heating of medicine liquid heating circulating device, a mode that is used for the inlet 206 ' of liquid after the filling heating is set respectively in pot body 2 ' upper and lower the material of inside is heated.The digester of this structure can only heat material, can not carry out displacement washing to material, and energy consumption is higher.In addition, inlet position, digester bottom is provided with a cone tubular filter screen 5 ', and effect is to form a passage between material and pot body, and the liquid that the medicine liquid heating circulating device is sent here can be distributed to the whole cross section of digester.But because bottom pressure is large, especially when the relatively poor material of boiling drainability, filter screen causes the blowing difficulty easily by feed blocking.In addition, digester bottom grout outlet is less, has further increased the blowing time, has reduced the operating efficiency of equipment.
Summary of the invention
Inventing technical problem to be solved is: the vertical digester that a kind of blowing convenience, high efficiency are provided.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of vertical digester comprises: pot cover, the pot body, bearing, blow-off valve, the medicine liquid heating circulating device, packer, pot body top is provided with charging door, pot body bottom is provided with grout outlet, the pot body comprises epimere, the stage casing, hypomere three parts, described pot body epimere is provided with gas vent, the gas vent below is provided with venting resistance material device in the pot body epimere, venting resistance material device below is provided with at least one top circulating medical solution mouth and liquid distributor on the pot body epimere, pot body stage casing is provided with some drawing liquid mouths of pipe, internal wall pot body is provided with annular filter plate corresponding to drawing liquid mouth of pipe place, the top of described pot body hypomere circumferentially is evenly equipped with some dilution imports, grout outlet place, pot body hypomere bottom is provided with an adapter, have in the adapter and spurt mouth and bottom circulating medical solution mouth, described blow-off valve is arranged on and spurts a mouthful place.
Described venting resistance material device is the perforate filter plate that is arranged on the internal wall pot body.
Described liquid distributor is the perforate filter plate that is arranged on the internal wall pot body.
The grout outlet diameter of described pot body bottom is at least 600mm.
Venting resistance material device below is provided with four to six top circulating medical solution mouths on the pot body epimere, and the top of described pot body hypomere circumferentially is evenly equipped with four dilution imports.
The invention has the beneficial effects as follows: because the internal wall pot body of pot body epimere cocycle liquid mouth correspondence is provided with the circular openings filter plate as liquid distributor, be distributed to equably on the whole cross section of digester at the liquid that heats up and holding stage can be sent the circulatory system here, and when elementary boiling, intermediate boiling and displacement recovery stage liquid are discharged, can prevent that the material fiber is discharged in the pot.
Owing to have bottom circulating medical solution mouth in the adapter at pot grout outlet place, body hypomere bottom, be used for intensification and holding stage the liquid after heating is sent in pot body.
Because the top at described pot body hypomere circumferentially is evenly equipped with some dilution imports, therefrom passes into dilution during blowing, is convenient to material and spurts.
In addition, the grout outlet diameter of pot body bottom is set to 600mm at least, thereby has greatly shortened the blowing blowdown time, thereby improved the operating efficiency of digester.
Description of drawings
Fig. 1 is the structural representation of traditional vertical digester.
Fig. 2 is structural representation of the present invention.
Among Fig. 1 to Fig. 2: 1 '. pot cover, 2 '. pot body, 201 '. charging door, 202 '. grout outlet, 206 '. inlet, 3 '. bearing, 4 '. blow-off valve, 5 '. cone tubular filter screen;
1. pot cover, 2. pot body, 201. charging doors, 202. grout outlets, 203. pots of body epimeres, 204. pots of body stage casings, 205. pots of body hypomeres, 206. top circulating medical solution mouths, the 207. drawing liquid mouths of pipe, 208. gas vents, 209. the dilution import, 3. bearing, 4. blow-off valve, 5. the perforate filter plate, 6. annular filter plate, 7. the perforate filter plate, 8. take over, 801. spurt mouthful, 802. bottom cycle liquid mouths.
The specific embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present invention in detail.
As shown in Figure 2, a kind of vertical digester comprises: pot cover 1, pot body 2, bearing 3, blow-off valve 4, medicine liquid heating circulating device (not shown), the packer (not shown), pot body 2 tops are provided with charging door 201, pot body 2 bottoms are provided with grout outlet 202, pot body 2 comprises epimere, the stage casing, hypomere three parts, pot body epimere 203 is provided with gas vent 208, pot body epimere 203 interior gas vents 208 belows are provided with the perforate filter plate 5 as venting resistance material device, pot body epimere 203 interior venting resistance material device belows are provided with four top circulating medical solution mouths 206 and liquid distributor, and described liquid distributor is the perforate filter plate 7 that is arranged on the annular on pot body 2 inwalls.Pot body stage casing 204 is provided with some drawing liquid mouths of pipe 207, pot body 2 inwalls are provided with annular filter plate 6 corresponding to the drawing liquid mouth of pipe 207 places, the top of described pot body hypomere 205 circumferentially is evenly equipped with four dilution imports 209, pot body hypomere 205 bottom grout outlets 202 places are provided with one and take over 8, take over to have on 8 and spurt mouth 801 and bottom cycle liquid mouth 802, described blow-off valve 4 is arranged on and spurts mouthful 801 places.Grout outlet 202 diameters of described pot body 2 bottoms are at least 600mm.
The digestion process of vertical digester comprises charging, elementary boiling, intermediate boiling, intensification and insulation, displacement recovery, spurts six steps.(1) the charging stage: material and cold black liquid and some cold white liquid are packed into by charging door 201 in pot body 2; (2) the elementary boiling stage: the cold white liquid of pumping temperature black liquor and part enters pot body 2 from bottom circulating medical solution mouth 802, and the mixed liquor in the pot body is emitted from top circulating medical solution mouth 206.(3) the intermediate boiling stage: the white liquid of pumps hot black liquor and heat enters pot body 2 from bottom circulating medical solution mouth 802, and the mixed liquor in the pot body 2 is emitted from top circulating medical solution mouth 206.(4) heat up and holding stage: the liquids in the pot body 2 are extracted out from middle part liquid suction pipe mouth 207, carried out circulating-heating and insulation in pot body 2 through entering from top circulating medical solution mouth 206 and bottom circulating medical solution mouth 802 respectively after the heating of Heating Cyclic device.(5) displacement recovery stage: the hot water that pumping is used for washing enters pot body 2 from bottom circulating medical solution mouth 802, and the hot black liquor in the pot body 2 is emitted from top circulating medical solution mouth 206, and slurry is washed in the pot simultaneously.(6) spurt blowing: in the pot slurry by grout outlet 202 through take over 8 spurt mouthfuls 801 and blow-off valve 4 discharge.This vertical digester is owing to reclaimed the part heat in the digestion process, so energy consumption is low, and the intensity of gained pulping is good, yield is high, Kappa number is low.
Because the internal wall pot body of pot body epimere 203 cocycle liquid mouths 206 correspondences is provided with the perforate filter plate 5 of annular, be distributed to equably on pot body 2 interior whole cross sections at the liquid that heats up and holding stage can be sent the circulatory system here, and when elementary boiling, intermediate boiling and displacement recovery stage liquid are discharged, can prevent the 2 interior material fibers discharges of pot body.
202 places are provided with an adapter 8 owing to pot body hypomere 205 bottom grout outlets, take on 8 and have bottom circulating medical solution mouth 802, be used for intensification and holding stage the liquid after heating is sent in pot body 2.
Because the top at described pot body hypomere 205 circumferentially is evenly equipped with four dilution imports 209, therefrom passes into dilution during blowing, is convenient to material and spurts.
In addition, grout outlet 202 diameters of pot body 2 bottoms are set to 600mm at least, thereby have greatly shortened the blowing blowdown time, thereby improved the operating efficiency of digester.
Claims (5)
1. a vertical digester comprises: pot cover, the pot body, bearing, blow-off valve, the medicine liquid heating circulating device, packer, pot body top is provided with charging door, pot body bottom is provided with grout outlet, the pot body comprises epimere, the stage casing, hypomere three parts, it is characterized in that: described pot body epimere is provided with gas vent, the gas vent below is provided with venting resistance material device in the pot body epimere, venting resistance material device below is provided with at least one top circulating medical solution mouth and liquid distributor on the pot body epimere, pot body stage casing is provided with some drawing liquid mouths of pipe, internal wall pot body is provided with annular filter plate corresponding to drawing liquid mouth of pipe place, the top of annular filter plate below, described pot body stage casing or pot body hypomere circumferentially is evenly equipped with some dilution imports, grout outlet place, pot body hypomere bottom is provided with an adapter, have in the adapter and spurt mouth and bottom circulating medical solution mouth, described blow-off valve is arranged on and spurts a mouthful place.
2. a kind of vertical digester as claimed in claim 1, it is characterized in that: described venting resistance material device is the perforate filter plate that is arranged on the internal wall pot body.
3. a kind of vertical digester as claimed in claim 2, it is characterized in that: described liquid distributor is the perforate filter plate that is arranged on the internal wall pot body.
4. a kind of vertical digester as claimed in claim 3 is characterized in that: the grout outlet diameter of described pot body bottom is at least 600mm.
5. a kind of vertical digester as claimed in claim 4 is characterized in that: venting resistance material device below is provided with four to six top circulating medical solution mouths on the pot body epimere, and the top of described pot body hypomere circumferentially is evenly equipped with four dilution imports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105669588A CN102978987A (en) | 2012-12-24 | 2012-12-24 | Vertical cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105669588A CN102978987A (en) | 2012-12-24 | 2012-12-24 | Vertical cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102978987A true CN102978987A (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105669588A Pending CN102978987A (en) | 2012-12-24 | 2012-12-24 | Vertical cooker |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04272288A (en) * | 1991-02-27 | 1992-09-29 | Abb Gadelius Kk | Apparatus for preventing strainer from clogging in continuous cellulose digester |
| CN1091792A (en) * | 1992-11-18 | 1994-09-07 | 卡米尔公司 | The method of continuous cooking of pulp |
| CN1333403A (en) * | 2001-08-30 | 2002-01-30 | 山东泉林纸业有限责任公司 | Dogstail pulp large liquor ratio circular heating replacing digestion technology and digestion equipment thereof |
| WO2011096857A1 (en) * | 2010-02-02 | 2011-08-11 | Metso Paper Sweden Ab | Continuous digester with improved heating circulation |
| CN202099648U (en) * | 2011-06-03 | 2012-01-04 | 重庆理文造纸有限公司 | Circulating system of cooking pot |
| CN202450365U (en) * | 2011-12-30 | 2012-09-26 | 新疆博湖苇业股份有限公司 | Grass raw material replacement cooker |
| CN203007715U (en) * | 2012-12-24 | 2013-06-19 | 江苏华机环保设备有限责任公司 | Vertical type boiling pan |
-
2012
- 2012-12-24 CN CN2012105669588A patent/CN102978987A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04272288A (en) * | 1991-02-27 | 1992-09-29 | Abb Gadelius Kk | Apparatus for preventing strainer from clogging in continuous cellulose digester |
| CN1091792A (en) * | 1992-11-18 | 1994-09-07 | 卡米尔公司 | The method of continuous cooking of pulp |
| CN1333403A (en) * | 2001-08-30 | 2002-01-30 | 山东泉林纸业有限责任公司 | Dogstail pulp large liquor ratio circular heating replacing digestion technology and digestion equipment thereof |
| WO2011096857A1 (en) * | 2010-02-02 | 2011-08-11 | Metso Paper Sweden Ab | Continuous digester with improved heating circulation |
| CN202099648U (en) * | 2011-06-03 | 2012-01-04 | 重庆理文造纸有限公司 | Circulating system of cooking pot |
| CN202450365U (en) * | 2011-12-30 | 2012-09-26 | 新疆博湖苇业股份有限公司 | Grass raw material replacement cooker |
| CN203007715U (en) * | 2012-12-24 | 2013-06-19 | 江苏华机环保设备有限责任公司 | Vertical type boiling pan |
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Application publication date: 20130320 |