CN204151606U - A kind of bleaching system of pulp from decoloured waste paper - Google Patents
A kind of bleaching system of pulp from decoloured waste paper Download PDFInfo
- Publication number
- CN204151606U CN204151606U CN201420493652.9U CN201420493652U CN204151606U CN 204151606 U CN204151606 U CN 204151606U CN 201420493652 U CN201420493652 U CN 201420493652U CN 204151606 U CN204151606 U CN 204151606U
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- pipeline
- feed pipe
- pulp
- chemical feed
- waste paper
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Abstract
The utility model discloses a kind of bleaching system of pulp from decoloured waste paper, comprise standpipe, described standpipe is provided with chemical feed pipe, also comprise liquid bisulfite and receive storage tank and liquid bleach accumulator tank, liquid bisulfite is received storage tank and is communicated with chemical feed pipe by the first pipeline, and liquid bleach accumulator tank is communicated with chemical feed pipe by the 3rd pipeline, and chemical feed pipe is also connected with the second inlet channel, first pipeline is provided with force (forcing) pump and two electromagnetic valves, and these two electromagnetic valves lay respectively at the two ends of force (forcing) pump.The utility model adopts liquid reducing bleach, and by arranging flow monitoring meter, realizes the real-time monitoring of flow, reduces the working strength of workman.
Description
Technical field
the utility model relates to a kind of bleaching system, specifically a kind of bleaching system being mainly used in pulp from decoloured waste paper production process.
Background technology
At present, pulp from decoloured waste paper bleaching is general adopts traditional oxidized form bleaching and reduced form bleaching, and the materials of oxidized form bleaching have hypochlorite, H2O2, O2 etc.; Oxidized form bleaching agent mainly oxidative degradation the residual lignin removed in slurry and improve whiteness, along with the development of newspaper industry, kind, the printing form of newspaper are also rich and varied, cause the reason also more complicated of old paper stock color development, except lignin residual in paper pulp, the color that also may generate because certain needs to add the additives such as dyestuff, and the printing-ink pigment particles etc. not yet removed in deinking process.Reduced form bleaching is the chromophoric group by reducing fiber itself, and effectively slough the color of dyestuff and improve whiteness, therefore reduced form bleaching agent is good decolorizer, and conventional reduced form bleaching agent comprises sodium dithionite, thiourea dioxide etc.; Wherein, sodium dithionite poor stability, oxidizable Sum decomposition, the scope of application is subject to certain restrictions; Thiourea dioxide (TD), also known as formamidine sulfinic acid, not easily decomposes in atmosphere, and in micro alkaline solution, resolve into urea and the extremely strong sulphoxylic acid of reducibility, final analyte is urea and sulfate; Thiourea dioxide is as a kind of novel environment friendly paper pulp bleaching agent, and use easy to operate, bleaching effect is better.Using during existing conventional thiourea dioxide bleached pulp is all generally the thiourea dioxide powder generated by water-soluble fluorine, its concrete preparation method is for raw material with thiocarbamide and hydrogen peroxide, react in the reactor, by suction filtration, the obtained thiourea dioxide solid of oven dry after crystallisation by cooling, dissolved again when bleaching and made the aqueous solution; This prepare solid thiourea dioxide method and step in need cooling, crystallization, drying etc., therefore, its complex process, cooling and dry run consume energy high, and production cost is higher.
Adopt solid FAS to prepare bleaching agent to have problems equally, because the storage of solid FAS bleaching agent has certain potential safety hazard, there is the risk of spontaneous combustion, and solid FAS can cause reinforced spiral to get stuck after making moist, and do not have on-Line Monitor Device monitoring whether to have material to add, human at periodic intervals can only be relied on to patrol and examine discovery, thus affect the preparation of bleaching agent, and then have influence on the quality of slurry.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of bleaching system of pulp from decoloured waste paper, effectively reduces labour intensity, monitors in real time flow.
In order to solve the problems of the technologies described above, the utility model takes following technical scheme:
A kind of bleaching system of pulp from decoloured waste paper, comprise standpipe, described standpipe is provided with chemical feed pipe, also comprise liquid bisulfite and receive storage tank and liquid bleach accumulator tank, liquid bisulfite is received storage tank and is communicated with chemical feed pipe by the first pipeline, liquid bleach accumulator tank is communicated with chemical feed pipe by the 3rd pipeline, and chemical feed pipe is also connected with the second inlet channel.
Described first pipeline is provided with force (forcing) pump and electromagnetic valve.
Described first pipeline is provided with altogether two electromagnetic valves, these two electromagnetic valves lay respectively at the two ends of force (forcing) pump.
Described second inlet channel is provided with electromagnetic valve and flow monitoring meter.
Described second inlet channel is also provided with filter.
Described 3rd pipeline is provided with dosing pump and electromagnetic valve.
The electromagnetic valve that described 3rd pipeline is arranged has two, and these two electromagnetic valves lay respectively at the two ends of dosing pump.
Described chemical feed pipe is provided with flow monitoring meter.
Described 3rd pipeline and chemical feed pipe are also provided with blender.
The utility model adopts liquid bleaching, and is monitored in real time the fluid flow added by flow monitoring meter, is beneficial to the stable of the quality of production, effectively reduces labour intensity, save production cost.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model pipeline catenation principle schematic diagram.
Detailed description of the invention
For the ease of the understanding of those skilled in the art, below in conjunction with accompanying drawing, the utility model will be further described.
As shown in Figure 1, the utility model discloses a kind of bleaching system of pulp from decoloured waste paper, comprise standpipe, described standpipe is provided with chemical feed pipe 1, also comprise liquid bisulfite and receive storage tank and liquid bleach accumulator tank, liquid bisulfite is received storage tank and is communicated with chemical feed pipe 1 by the first pipeline 3, and liquid bleach accumulator tank is communicated with chemical feed pipe 1 by the 3rd pipeline 13, chemical feed pipe 1 is also connected with the second inlet channel 10.First pipeline 3, second inlet channel 10 and the 3rd pipeline 13 are arranged in the mode of arranged in parallel, conveniently arrangement is installed, more succinctly, and can not affects each other, first pipeline, the second inlet channel and the 3rd pipeline finally converge at chemical feed pipe, carry corresponding material to chemical feed pipe.3rd pipeline 13 and chemical feed pipe are provided with blender 14, various material can better be mixed.
First pipeline 3 is provided with force (forcing) pump 5 and electromagnetic valve 4.In order to better control, the first pipeline 3 is provided with altogether two electromagnetic valves 4, and these two electromagnetic valves 4 lay respectively at the two ends of force (forcing) pump 5, electromagnetic valve effectively can control the size of the flow of the conveying on the first pipeline.
Second inlet channel 10 is provided with electromagnetic valve 6 and flow monitoring meter 9.This electromagnetic valve 6 can be used for the flow controlling liquid, and flow monitoring meter 9 then facilitates workman to the real-time monitoring of fluid flow, realizes best proportioning, ensures the stable of the quality of production.In addition, in order to ensure the clean level of water, the second inlet channel 10 being also provided with filter 8, effectively can filtering out impurity, ensure the clean clean of water quality.
3rd pipeline 13 is provided with dosing pump 12 and electromagnetic valve 11.In order to better control, the 3rd pipeline 13 is provided with altogether two electromagnetic valves 11, and these two electromagnetic valves 11 lay respectively at the two ends of dosing pump 12, electromagnetic valve effectively can control the size of the flow of the conveying on the first pipeline.
In addition, chemical feed pipe 1 is provided with flow monitoring meter 2, first pipeline is to chemical feed pipe conveying liquid sodium hydrogensulfite, and the second inlet channel carries clear water to chemical feed pipe, and the 3rd pipeline carries liquid bleach to chemical feed pipe, three kinds of materials converge in chemical feed pipe, enter into standpipe by chemical feed pipe again, by the flow monitoring meter on chemical feed pipe, effectively can view the traffic conditions of mixed material, to adjust uninterrupted, ensure the stability of the quality of production.
It should be noted that, the above is not to restriction of the present utility model, and under the prerequisite not departing from creation design of the present utility model, any apparent replacement is all within protection domain of the present utility model.
Claims (9)
1. the bleaching system of a pulp from decoloured waste paper, comprise standpipe, it is characterized in that, described standpipe is provided with chemical feed pipe, also comprise liquid bisulfite and receive storage tank and liquid bleach accumulator tank, liquid bisulfite is received storage tank and is communicated with chemical feed pipe by the first pipeline, and liquid bleach accumulator tank is communicated with chemical feed pipe by the 3rd pipeline, and chemical feed pipe is also connected with the second inlet channel.
2. the bleaching system of pulp from decoloured waste paper according to claim 1, is characterized in that, described first pipeline is provided with force (forcing) pump and electromagnetic valve.
3. the bleaching system of pulp from decoloured waste paper according to claim 2, is characterized in that, described first pipeline is provided with altogether two electromagnetic valves, and these two electromagnetic valves lay respectively at the two ends of force (forcing) pump.
4. the bleaching system of pulp from decoloured waste paper according to claim 3, is characterized in that, described second inlet channel is provided with electromagnetic valve and flow monitoring meter.
5. the bleaching system of pulp from decoloured waste paper according to claim 4, is characterized in that, described second inlet channel is also provided with filter.
6. the bleaching system of pulp from decoloured waste paper according to claim 5, is characterized in that, described 3rd pipeline is provided with dosing pump and electromagnetic valve.
7. the bleaching system of pulp from decoloured waste paper according to claim 6, is characterized in that, the electromagnetic valve that described 3rd pipeline is arranged has two, and these two electromagnetic valves lay respectively at the two ends of dosing pump.
8. the bleaching system of pulp from decoloured waste paper according to claim 7, is characterized in that, described chemical feed pipe is provided with flow monitoring meter.
9. the bleaching system of pulp from decoloured waste paper according to claim 8, is characterized in that, described 3rd pipeline and chemical feed pipe are also provided with blender.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420493652.9U CN204151606U (en) | 2014-08-29 | 2014-08-29 | A kind of bleaching system of pulp from decoloured waste paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420493652.9U CN204151606U (en) | 2014-08-29 | 2014-08-29 | A kind of bleaching system of pulp from decoloured waste paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204151606U true CN204151606U (en) | 2015-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420493652.9U Expired - Fee Related CN204151606U (en) | 2014-08-29 | 2014-08-29 | A kind of bleaching system of pulp from decoloured waste paper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204151606U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107844109A (en) * | 2017-12-11 | 2018-03-27 | 保定市尤里卡电气设备有限公司 | A kind of eider down washes control system |
-
2014
- 2014-08-29 CN CN201420493652.9U patent/CN204151606U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107844109A (en) * | 2017-12-11 | 2018-03-27 | 保定市尤里卡电气设备有限公司 | A kind of eider down washes control system |
| CN107844109B (en) * | 2017-12-11 | 2023-09-08 | 保定市尤里卡电气设备有限公司 | Down washing control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 523000 Guangdong Province, Dongguan City Ma Village Patentee after: Nine dragon paper (Dongguan) Co., Ltd. Address before: 523000 Guangdong province Dongguan City Machong town Xinsha Port Industrial Zone Nine Dragons Paper Co. Ltd. Patentee before: Dongguan Nine Dragons Paper Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20200829 |