CN201546115U - Control device of beating process - Google Patents
Control device of beating process Download PDFInfo
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- CN201546115U CN201546115U CN2009202381924U CN200920238192U CN201546115U CN 201546115 U CN201546115 U CN 201546115U CN 2009202381924 U CN2009202381924 U CN 2009202381924U CN 200920238192 U CN200920238192 U CN 200920238192U CN 201546115 U CN201546115 U CN 201546115U
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- pulp
- beater
- inlet pipe
- stock pump
- grout outlet
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Abstract
The utility model discloses a control device of a beating process. The device comprises a first drainer, a stuff pump, a second drainer and a pulping machine which are connected in sequence, wherein a dilution water stirring device is arranged in the first drainer, a dilution pipe is arranged on the pulp feed tube of the stuff pump, a pulp densimeter is arranged on the pulp discharge tube of the stuff pump, a level gauge is arranged on the second drainer, and a flowmeter is arranged on the pulp discharge tube of the pulping machine. The device of the utility model can implement beating process under the condition of set pulp density, flow quantity, pressure and power, can obtain stable beating quality and paper forming quality, can reduce energy consumption in beating process, and can enhance physical properties of paper.
Description
Technical field
The utility model belongs to the pulping and paper-making field, specifically is a kind of control device of pulping process.
Background technology
Pulp and paper industry is main raw material(s) with the string, plant fiber material by get the raw materials ready, chemistry or machinery pulping process disperse to become paper pulp fiber, improves whiteness and retention of whiteness by bleaching, becoming can be for the paper pulp fiber of papermaking.But, being transported to before paper machine copies paper, paper pulp fiber also must be through the processing of beating equipment.
Making beating is an important technical links in the paper making pulp preparation process, its objective is by applying the effect of power, change the physical aspect (fibrillating such as fibre swelling, layering, branch silk and cut-out etc.) of fibrous raw material, make paper pulp obtain some characteristic, with the paper that guarantees to copy or the quality requirement of cardboard, and satisfy the paper machine making performance demands.Making beating is a technical process that is subjected to the complexity of multifactor impact, to papermaking energy consumption, paper pulp fiber characteristic with become the paper physical property that significant effects is arranged.
Traditional pulping process is manually control, and along with the expansion and the development of technology of commercial production scale, the automatic control of pulping process is subjected to extensively paying attention to not broken hair exhibition.The automatic control that realizes pulping process can reduce the refining pulp quality fluctuation, improves output, cut down the consumption of energy, and is one of direction of making beating technical development.
Current, the control of pulping process is mainly contained two kinds of technique directions.A kind of control mode adopts specific energy consumption control, promptly under the constant condition of beater motor speed, set the needed energy consumption of unit bone dry fiber amount, by the concentration and the flow of test paper pulp fibres, fiber throughput when calculating making beating, thus can calculate needed making beating power.This method needs to detect in real time the concentration and the flow of paper pulp, when the concentration of paper pulp and flowed fluctuation, needs to regulate the moving abrasive disc of beater and decides refining plate interval and regulate making beating power.Because the feedback of system needs the time, when moving abrasive disc with after decide refining plate interval and regulating according to last concentration and flow detection value, fluctuation has taken place again in the concentration of possible paper pulp and flow, so in fact is difficult to the energy consumption of unit bone dry fiber amount is maintained setting value.Another kind of control method belongs to the refining pulp quality control method, this method is taked online detection refining pulp quality (pulp beating degree, weight in wet base), regulate the motor-driven abrasive disc of making beating and decide refining plate interval by the deviation between refining pulp quality measured value and the setting value, make pulp quality stable.Though the development of domestic refining pulp quality on-line measurement instrument has obtained certain progress, also have big gap apart from industrial applications, external measuring instrument not only costs an arm and a leg, and may not adapt to domestic needs.Therefore, generally take the soft-measuring technique of pulp quality, realize control pulp quality.But because the complexity of pulping process, the factor of influence making beating is a lot, has determined any soft-sensing model all to have limitation, and adaptability can be too wideless.
The utility model content
The purpose of this utility model is to overcome the shortcoming of prior art, and the control device that a kind of pulp quality is high and stable, become paper stable physical property, pulping process that beating energy consumption is low is provided.
The purpose of this utility model is achieved through the following technical solutions:
A kind of control device of pulping process is characterized in that comprising first reserve pit, stock pump, stock pump pulp-inlet pipe, stock pump grout outlet, second reserve pit, beater, beater pulp-inlet pipe and beater grout outlet; The stock pump pulp-inlet pipe links to each other with stock pump with the stock pump grout outlet, and the beater pulp-inlet pipe links to each other with beater with the beater grout outlet; First grout outlet of the first reserve pit lower end links to each other with the stock pump pulp-inlet pipe, is provided with band dilution water agitator near first grout outlet in first reserve pit; Band dilution water agitator links to each other with the first dilution water pipe; The stock pump pulp-inlet pipe is provided with first valve; The stock pump pulp-inlet pipe links to each other with the second dilution water pipe; The stock pump grout outlet is provided with the pulp density meter; The paper pulp that the stock pump grout outlet flows out enters second reserve pit; Second reserve pit is provided with liquid level gauge; Second grout outlet of the second reserve pit lower end links to each other with the beater pulp-inlet pipe; The beater pulp-inlet pipe is provided with second valve; The beater grout outlet is provided with flowmeter.
Further, the bottom of first reserve pit has the shape of shrinking gradually.
Further, second reserve pit has the bottom of back taper.
A kind of control method of pulping process is characterized in that:
(1) constant pulp density: by the band dilution water agitator that is arranged in first reserve pit pulp density is carried out coarse adjustment, pulp density finely tuned with the second dilution water pipe that links to each other with the stock pump pulp-inlet pipe by the pulp density meter, be implemented in the pulping process of setting under the pulp density;
When the concentration of pulp density meter demonstration is higher or lower than setting value, the concentration of regulating paper pulp by the addition that increases or reduce dilution water, band dilution water agitator carries out coarse adjustment to pulp density, paper pulp is finely tuned pulp density by the dilution water pipe on the stock pump pulp-inlet pipe after flowing into the stock pump pulp-inlet pipe again, makes pulp density maintain setting value;
(2) constant pulp flow:, making beating is carried out under the flow of setting by being arranged on flowmeter on the beater grout outlet, being arranged on second valve on the beater pulp-inlet pipe and the liquid level gauge that is arranged on second reserve pit is regulated the paper pulp throughput by beater;
When the pulp flow of flowmeter demonstration was lower than setting value, if the liquid level that this moment, liquid level gauge showed has the space of raising, the paper pulp liquid level that then improves second reserve pit increased beating pressure, the increase pulp flow; The paper pulp liquid level that shows second reserve pit when liquid level gauge has been in highest level, then improves pulp flow by the aperture that strengthens second valve on the beater pulp-inlet pipe, makes pulp flow maintain setting value;
When the pulp flow of flowmeter demonstration is higher than setting value, can reduce pulp flow by paper pulp liquid level that reduces by second reserve pit and/or the aperture that reduces second valve on the beater pulp-inlet pipe, make pulp flow maintain setting value;
The adjusting of the paper pulp liquid level of described second reserve pit is by the aperture size adjustment of first valve before the stock pump;
(3) constant making beating power: the moving abrasive disc by regulating beater and decide refining plate interval and regulate making beating power carries out pulping process under the power condition of setting.
The control device of the pulping process that the utility model provides, can be implemented in the pulp density of setting, flow, pull an oar under pressure and the making beating power, with this understanding, theoretical according to the modern times making beating, if the rotating speed of beater maintains certain level, making beating processing intensity suffered when then paper pulp fiber is by beater mill district is certain, suffered making beating degree of treatment (beating energy consumption with unit over dry quality paper pulp is represented) also was certain when paper pulp fiber was by beater mill district simultaneously, thereby had realized at the pulping process of setting under making beating intensity and the making beating degree condition.
The utility model has following advantage compared with the prior art:
The adjusting and the setting of beater paper pulp throughput and beater power when 1, the utility model is by pulp density, making beating, making beating is carried out under pulp density, flow, pressure and the making beating power condition set, realized at the pulping process of setting under making beating processing intensity and the making beating degree of treatment condition, significantly reduced the fluctuation of the refining pulp quality that each factor fluctuation causes in the pulping process, improved the stability and the stability that becomes the paper physical property of pulp quality greatly, helped reducing beating energy consumption, improve pulp quality, improve into the paper physical property.
2, in the existing making beating control method, the concentration of paper pulp and flow can occur than great fluctuation process, needs are regulated the moving abrasive disc of beater and are decided refining plate interval and regulate making beating power, moving abrasive disc and decide refining plate interval and regulate cumbersome, and the utility model concentration and the flow of constant paper pulp well, thereby constant making beating power in pulping process does not need to regulate moving abrasive disc and decides refining plate interval, thereby improved the stability and the stability that becomes the paper physical property of pulp quality.
3, simple, the wide accommodation of the utility model equipment, cost is low, operating cost is low, convenient operating maintenance, be easy to apply.
Description of drawings
Fig. 1 is the control device schematic diagram of the pulping process that provides of the utility model.
Among the figure, 1: the first reserve pit; 2: band dilution water agitator; 3: the first dilution water pipes; 4: the second dilution water pipes; 5: the first valves; 6: the stock pump pulp-inlet pipe; 7: stock pump; 8: the stock pump grout outlet; 9: the pulp density meter; 10: the second reserve pits; 11: liquid level gauge; 12: the beater pulp-inlet pipe; 13: the second valves; 14: beater; 15: the beater grout outlet; 16: flowmeter.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is done further concrete description, but the claimed scope of the utility model is not limited to the scope that embodiment explains.
Embodiment
As shown in Figure 1, the control device of the pulping process that the utility model provides comprises first reserve pit 1, stock pump pulp-inlet pipe 6, stock pump 7, stock pump grout outlet 8, second reserve pit 10, beater pulp-inlet pipe 12, beater 14, beater grout outlet 15 and band dilution water agitator 2, the first dilution water pipe 3, the second dilution water pipe 4, pulp density meter 9, liquid level gauge 11, flowmeter 16, first valve 5, second valve 13;
Band dilution water agitator 2 is arranged in the reserve pit 1, and the described first dilution water pipe 3 is the dilution water water inlet pipe of band dilution water agitator 2;
Stock pump pulp-inlet pipe 6 one ends are connected with first reserve pit 1, and the other end is connected with stock pump 7, and described stock pump pulp-inlet pipe 6 is provided with first valve 5, link to each other with the second dilution water pipe 4;
Beater pulp-inlet pipe 12 1 ends are connected with second reserve pit, 10 bottoms, and the other end is connected with beater 14, and described beater pulp-inlet pipe 12 is provided with second valve 13;
First reserve pit, 1 bottom has to being provided with the shape that band dilution water agitator 2 shrinks gradually on one side;
It is raw material that present embodiment adopts the Eucalyptus bleached pulp, and setting beating consistency is 4.5%, and pulp flow is 20Kg/min, making beating power is 110Kw, the motor-driven abrasive disc synchronous rotational speed of pulling an oar is 1500rpm, and the control method of the utility model pulping process may further comprise the steps and process conditions:
1, pulp density is regulated: pulp density is about 8% in first reserve pit, carry out coarse adjustment by being arranged on 2 pairs of pulp densities of band dilution water agitator in first reserve pit 1, by pulp density meter 9 be arranged on 4 pairs of pulp densities of the dilution water pipe of second on the stock pump pulp-inlet pipe 6 and finely tune, be implemented in the pulping process of setting under the pulp density 4.5%;
When the concentration that shows when densimeter 9 is higher or lower than setting value 4.5%, the concentration of regulating paper pulp by the addition that increases or reduce dilution water, 3 pairs of pulp densities of the first dilution water pipe on the band dilution water agitator 2 carry out coarse adjustment, finely tune by 4 pairs of pulp densities of the dilution water pipe of second on the stock pump pulp-inlet pipe 6 again, make pulp density maintain setting value 4.5%;
2, pulp flow is regulated: by being arranged on flowmeter 16 on the beater grout outlet 15, being arranged on second valve 13 on the beater pulp- inlet pipe 12 and 11 pairs of paper pulp throughputs by beater of liquid level gauge of second reserve pit 10 are regulated, making beating is carried out under the flow of setting;
When the pulp flow of flowmeter 16 demonstrations was lower than setting value 20Kg/min, if the liquid level of liquid level gauge 11 demonstrations this moment has the space of raising, the paper pulp liquid level that then improves second reserve pit 10 increased beating pressure, the increase pulp flow; Be in highest level when liquid level gauge 11 shows the paper pulp liquid level of second reserve pit 10, then improved pulp flow, made pulp flow maintain setting value 20Kg/min by the aperture that strengthens second valve 13 on the beater pulp-inlet pipe 12;
When the pulp flow of flowmeter 16 demonstrations is higher than setting value 20Kg/min, reduce pulp flow by paper pulp liquid level that reduces by second reserve pit 10 and/or the aperture that reduces second valve 13 on the beater pulp-inlet pipe 12, make pulp flow maintain setting value 20Kg/min;
The aperture size adjustment of first valve 5 before the stock pump 7 is passed through in the adjusting of the paper pulp liquid level of second reserve pit 10;
3, making beating power adjusting: the moving abrasive disc by regulating beater 14 and decide refining plate interval and regulate making beating power carries out pulping process under the power 110Kw condition of setting.
Making beating is carried out under pulp density, flow, pressure and the making beating power set.
Above-mentioned pulping process has been obtained good beating results, and beating energy consumption descends more than 15%, becomes the paper physical property to improve more than 10%.
Claims (3)
1. the control device of a pulping process is characterized in that comprising first reserve pit (1), stock pump (7), stock pump pulp-inlet pipe (6), stock pump grout outlet (8), second reserve pit (10), beater (14), beater pulp-inlet pipe (12) and beater grout outlet (15); Stock pump pulp-inlet pipe (6) links to each other with stock pump (7) with stock pump grout outlet (8), and beater pulp-inlet pipe (12) links to each other with beater (14) with beater grout outlet (15); First grout outlet of first reserve pit (1) lower end links to each other with stock pump pulp-inlet pipe (6), is provided with band dilution water agitator (2) near first grout outlet in first reserve pit (1); Band dilution water agitator (2) links to each other with the first dilution water pipe (3); Stock pump pulp-inlet pipe (6) is provided with first valve (5); Stock pump pulp-inlet pipe (6) links to each other with the second dilution water pipe (4); Stock pump grout outlet (8) is provided with pulp density meter (9); The paper pulp that stock pump grout outlet (8) flows out enters second reserve pit (10); Second reserve pit (10) is provided with liquid level gauge (11); Second grout outlet of second reserve pit (10) lower end links to each other with beater pulp-inlet pipe (12); Beater pulp-inlet pipe (12) is provided with second valve (13); Beater grout outlet (15) is provided with flowmeter (16).
2. the control device of pulping process according to claim 1 is characterized in that the bottom of first reserve pit (1) has the shape of shrinking gradually.
3. the control device of pulping process according to claim 1 is characterized in that second reserve pit (10) has the bottom of back taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202381924U CN201546115U (en) | 2009-10-30 | 2009-10-30 | Control device of beating process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202381924U CN201546115U (en) | 2009-10-30 | 2009-10-30 | Control device of beating process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201546115U true CN201546115U (en) | 2010-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202381924U Expired - Fee Related CN201546115U (en) | 2009-10-30 | 2009-10-30 | Control device of beating process |
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| Country | Link |
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| CN (1) | CN201546115U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104878641A (en) * | 2015-06-08 | 2015-09-02 | 无锡市羊尖盛裕机械配件厂 | Automatic pulp concentration adjusting device |
-
2009
- 2009-10-30 CN CN2009202381924U patent/CN201546115U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104878641A (en) * | 2015-06-08 | 2015-09-02 | 无锡市羊尖盛裕机械配件厂 | Automatic pulp concentration adjusting device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20121030 |