CN201180167Y - Bleaching and heating device for viscose fiber pulp production - Google Patents
Bleaching and heating device for viscose fiber pulp production Download PDFInfo
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- CN201180167Y CN201180167Y CNU200820063236XU CN200820063236U CN201180167Y CN 201180167 Y CN201180167 Y CN 201180167Y CN U200820063236X U CNU200820063236X U CN U200820063236XU CN 200820063236 U CN200820063236 U CN 200820063236U CN 201180167 Y CN201180167 Y CN 201180167Y
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- heater
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Abstract
The utility model discloses bleaching heating equipment in the production of viscose fiber pulp and aims to solve problems that the prior viscose fiber bleaching process needs long period and has large energy consumption and low yield and so on. The equipment adopts the following proposal that a slurry pipeline between an outlet of an alkalization tower and a bleacher is provided with a heating device, the heating device continuously heats slurry conveyed between the alkalization tower and the bleacher, and the slurry reaching the preset temperature can be instantly bleached after the slurry reaches the bleacher. The adoption of the equipment, on the basis of no scale enlargement of the bleacher, shortens bleaching period, promotes bleaching productivity, and ensures that the bleaching period is reduced to 200 minutes from the prior 240 minutes. The bleaching productivity is promoted by 16.7 percent, and the pulp productivity can be promoted to 90,000 tons per year based on 70,000 tons per year.
Description
Technical field
The utility model belongs to the bleaching link field in the cellulose viscose pulp production process, is specifically related to bleach firing equipment.
Background technology
In cellulose viscose pulp is produced (as the cotton pulp dregs of rice), in order to improve the reaction speed of bleaching, adjust the degree of polymerization, often need the slurry in the Bellmer is heated, be warmed up to the temperature of process requirements.
All adopt the mode that heats in the pond of floating at cellulose viscose pulp (dissolving pulp) production field, the intact slurry of immediate shipment just begins to wait that to floating the logical vapour heat temperature raising of slurry in the pond temperature that is raised to technological requirement needs 40 fens clock times all the time.It is too many that present longer main cause of bleaching cycle just is to heat the link spended time.
In addition, the previous bleach plant of order roughly is provided with 12 and floats the pond, and the design production capacity is 70,000 tons, promote the production capacity of ten thousand tons/year of 1-2, just can only increase Bellmer.Yet the increase Bellmer is faced with the problem of the big and soil anxiety of construction investment.
The utility model content
At the above-mentioned state of the art, the utility model purpose is to shorten the bleaching cycle on the basis that does not enlarge the Bellmer scale, promotes the bleaching production capacity.Thus, the utility model proposes the bleaching firing equipment in a kind of cellulose viscose pulp production, the utility model shortens heat time heating time, realizes thus shortening the bleaching cycle, promotes the purpose of bleaching production capacity.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is as follows:
Bleaching firing equipment during cellulose viscose pulp is produced comprises alkalization tower, Bellmer, it is characterized in that: also comprise a heater, this heater is installed on the slurry pipeline that alkalizes between tower and the Bellmer.
Described heater is a double roller mixer, comprise the two helical stir dispersion rollers in shell, slurry import, slurry passage, slurry outlet and the shell by two driving motors drivings, every spiral disperses uniform dispersed with stirring spiral on the roller, is distributing on the shell and is leading to the steam pipe of enclosure slurry.
Double roller mixer has many tongues of Steam Heating spraying device; Many tongues of Steam Heating spraying device is distributed in the both sides of double roller mixer, comprises steaming chamber, spurts tongue, condensation-water drain; Steam pipe is communicated with steaming chamber through steam inlet, and steaming chamber is through spurting tongue and slurry channel connection.
Operation principle of the present utility model and process are:
After the steam that has a certain pressure enters steaming chamber from steam inlet, steam increases substantially with the scope of spurting by the speed of spurting after spurting tongue, steam and slurry contact area have been increased, strengthened the osmosis of steam to slurry, in this case, steam at a high speed spray to slurry, obtained contacting very fully with the slurry that disperses that highly rolls, very fast with the slurry uniform heating.Concentration is that the slurry of 4-5% is delivered to the slurry import of double roller mixer by pump, by adjusting the aperture of valve, adjusts the throughput of slurry.After slurry enters two rod blenders, disperseed the uniform dispersed with stirring of rod to roll and carries by spiral, open the steam inlet valve simultaneously, steam enters steaming chamber and spurts the tongue high speed from steam and spray to slurry on a large scale, strong osmotic directly contacts with slurry uniformly, efficiently and uniformly slurry is heated.Its rotating speed of motor of technology major control V of control double roller mixer heating slurry, the aperture size of stock inlet slurry valve, the size of steam inlet valve are controlled the heated temperatures size of slurry.
The beneficial effects of the utility model show:
The utility model adopts two roller hybrid heaters to heat continuously reaching Bellmer slurry before, the slurry that arrives Bellmer has reached rated temperature, can carry out next step bleaching process, no longer heating, cancelled 40 minutes bleaching heat time heating time, the bleaching cycle was reduced to 200 minutes by original 240 minutes at Bellmer.The bleaching production capacity has promoted 16.7%, and the pulp production capacity can rise to 90,000 tons/year on 70,000 tons/year basis.Save the investment of four Bellmers, economized on the use of funds 1,200,000 yuan.In addition, each many steam pipe that distribute of the both sides of slurry import and shell, steam is sprayed onto on the homodisperse slurry after opening steam valve, slurry is directly heated, because slurry is uniformly dispersed, Steam Heating is wide, so short slurry heat time heating time being heated in double roller mixer is evenly good, does not have the hot-spot phenomenon.
Description of drawings
Fig. 1 is the utility model principle schematic
Fig. 2 rolls hybrid heater vertical profile structure principle chart for the utility model is two
Fig. 3 rolls the cross-sectional structure principle chart of hybrid heater for the utility model is two
Mark among the figure: 1 alkalization tower, 2 Bellmers, 3 slurry pipelines, 4 heaters, 5 shells, 6 slurry imports, 7 slurry outlets, 8 driving motors, 9 helical stir disperse roller, 10 steaming chambers, 11 to spurt tongue, 12 condensation-water drains, 13 steam inlets, 14 chlorination towers
The specific embodiment
In the cellulose viscose pulp production process, bleaching time length is an important step that the restriction production capacity promotes at present.And length heat time heating time before the bleaching is key point.The utility model is conceived to shorten heat time heating time, by having proposed continuous mode of heating.That is, certain link before slurry enters Bellmer adopts a kind of heater in the course of conveying of slurry in pipeline, makes the slurry that passes through successively, heated continuously.Here it is, and the utility model is innovated the place.
At the concrete the utility model of using heater and heating place are studied.
About heater: double roller mixer mainly disperses roller and many tongues of Steam Heating spraying device to form by the driving motor of two 37KW, two helical stir.
The driving motor of double roller mixer is a variable frequency control, can adjust rotating speed of motor by the frequency of regulating motor, thereby adjusts the transporting velocity and the degree of scatter of slurry.
On the hand of spiral, be uniform-distribution with many poking bars on two helical stir rollers of double roller mixer, the agitating roller of rotation can disperse slurry uniformly, slurry constantly rolls, and fully exposes the specific area of slurry, plays the effect of the contact area of increase and steam.
Many tongues of Steam Heating spraying device is distributed in the both sides of double roller mixer, and every limit is 80 10 by slurry import, steaming chamber and the diameter of DN150 respectively, and to spurt tongue, diameter be that 80 condensation-water drain is formed.After the steam that has a certain pressure enters steaming chamber from steam inlet, steam increases substantially with the scope of spurting by the speed of spurting after spurting tongue, steam and slurry contact area have been increased, strengthened the osmosis of steam to slurry, in this case, steam at a high speed spray to slurry, obtained contacting very fully with the slurry that disperses that highly rolls, very fast with the slurry uniform heating.
Concentration is that the slurry of 4-5% is delivered to the slurry import of double roller mixer by pump, by adjusting the aperture of valve, adjusts the throughput of slurry.After slurry enters two rod blenders, disperseed the uniform dispersed with stirring of rod to roll and carries by spiral, open the steam inlet valve simultaneously, steam enters steaming chamber and spurts the tongue high speed from steam and spray to slurry on a large scale, strong osmotic directly contacts with slurry uniformly, efficiently and uniformly slurry is heated.
Its rotating speed of motor of technology major control V of control double roller mixer heating slurry, the aperture size of stock inlet slurry valve, the size of steam inlet valve are controlled the heated temperatures size of slurry.
About heating the place: at first, we analyze the slurry character of chlorination, alkalization outlet, think that the slurry of alkalization outlet is alkalescence, slurry is under alkali condition, temperature under the situations that are lower than 46 degree to first fine and viscosity without any influence, two roller hybrid heaters are arranged between alkalization tower and the Bellmer, can play the effect of continuous heating, again to Bleaching Quality without any influence.
The heating process flow process is as follows: chlorination tower → alkalization tower → two roller hybrid heater → Bellmers.
Before the bleaching process of cellulose viscose pulp production process, adopt two continuous mode of heatings of roller hybrid heater, cancelled 40 minutes bleaching time, the bleaching cycle was reduced to 200 minutes by original 240 minutes at Bellmer.The bleaching production capacity has promoted 16.7%, and the pulp production capacity can rise to 90,000 tons/year on 70,000 tons/year basis.Save the investment of four Bellmers, economized on the use of funds 1,200,000 yuan.
Claims (3)
1, the bleaching firing equipment during cellulose viscose pulp is produced comprises alkalization tower, Bellmer, it is characterized in that: also comprise a heater, this heater is installed on the slurry pipeline that alkalizes between tower and the Bellmer.
2, the bleaching firing equipment during cellulose viscose pulp according to claim 1 is produced, it is characterized in that: described heater is a double roller mixer, comprise the two helical stir dispersion rollers in shell, slurry import, slurry passage, slurry outlet and the shell by two driving motors drivings, every spiral disperses uniform dispersed with stirring spiral on the roller, is distributing on the shell and is leading to the steam pipe of enclosure slurry.
3, the bleaching firing equipment during cellulose viscose pulp according to claim 2 is produced, it is characterized in that: double roller mixer has many tongues of Steam Heating spraying device; Many tongues of Steam Heating spraying device is distributed in the both sides of double roller mixer, comprises steaming chamber, spurts tongue, condensation-water drain; Steam pipe is communicated with steaming chamber through steam inlet, and steaming chamber is through spurting tongue and slurry channel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820063236XU CN201180167Y (en) | 2008-04-30 | 2008-04-30 | Bleaching and heating device for viscose fiber pulp production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820063236XU CN201180167Y (en) | 2008-04-30 | 2008-04-30 | Bleaching and heating device for viscose fiber pulp production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201180167Y true CN201180167Y (en) | 2009-01-14 |
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ID=40249667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820063236XU Expired - Fee Related CN201180167Y (en) | 2008-04-30 | 2008-04-30 | Bleaching and heating device for viscose fiber pulp production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201180167Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101265608B (en) * | 2008-04-30 | 2011-06-08 | 宜宾长毅浆粕有限责任公司 | Bleaching and heating process and bleaching heating equipment in cellulose viscose pulp production |
| CN114277590A (en) * | 2021-12-31 | 2022-04-05 | 郑州运达造纸设备有限公司 | Anti-bridging groove body of steaming bin |
-
2008
- 2008-04-30 CN CNU200820063236XU patent/CN201180167Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101265608B (en) * | 2008-04-30 | 2011-06-08 | 宜宾长毅浆粕有限责任公司 | Bleaching and heating process and bleaching heating equipment in cellulose viscose pulp production |
| CN114277590A (en) * | 2021-12-31 | 2022-04-05 | 郑州运达造纸设备有限公司 | Anti-bridging groove body of steaming bin |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YIBIN GRACE GROUP COMPANY Free format text: FORMER OWNER: YIBIN CHANGYI POMACE CO., LTD. Effective date: 20130520 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130520 Address after: 644002 space Road, Nan'an economic and Technological Development Zone, Yibin, Sichuan Patentee after: Yibin Grace Group Company Address before: 644002 Yibin, South Bank of the middle of the road, the space shuttle Patentee before: Yibin Changyi Pomace Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090114 Termination date: 20150430 |
|
| EXPY | Termination of patent right or utility model |