CN114326839A - Pulp supply control method and pulp supply equipment - Google Patents
Pulp supply control method and pulp supply equipment Download PDFInfo
- Publication number
- CN114326839A CN114326839A CN202111679996.XA CN202111679996A CN114326839A CN 114326839 A CN114326839 A CN 114326839A CN 202111679996 A CN202111679996 A CN 202111679996A CN 114326839 A CN114326839 A CN 114326839A
- Authority
- CN
- China
- Prior art keywords
- liquid level
- level sensor
- height signal
- slurry
- slurry supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 57
- 239000007788 liquid Substances 0.000 claims abstract description 300
- 239000002002 slurry Substances 0.000 claims abstract description 111
- 238000012544 monitoring process Methods 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims description 49
- 229920001131 Pulp (paper) Polymers 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Images
Landscapes
- Control Of Non-Electrical Variables (AREA)
Abstract
The invention provides a pulp supply control method and pulp supply equipment, which comprise the following steps: monitoring a level height signal of the slurry supply slurry; setting the maximum height of the liquid level of the slurry supply slurry to be HmaxThe shortest time for supplying the slurry is Tmin(ii) a Calling the liquid level height signal, and comparing the height value H corresponding to the liquid level height signal with the maximum height H of the liquid levelmax is compared, and the height value H corresponding to the liquid level height signal is compared with the maximum liquid level height HmaxThe comparison result between the above-mentioned two methods is the shortest time T for pulp supplyminAnd adjusting to obtain the slurry supply time T corresponding to the height value H corresponding to the liquid level height signal. Through the technical scheme provided by the invention, the technical problem that the quality of a paper pulp product is greatly influenced due to the change of the amount of the pulp supply slurry in the prior art can be solved.
Description
Technical Field
The invention relates to the technical field of paper pulp molding production, in particular to a pulp supply control method and pulp supply equipment.
Background
At present, in the pulp molding production technology, the supply of pulp is completed by a pulp supply barrel, a pulp supply pump and a pulp tank together, and the quality and the thickness of a pulp product are mainly determined by the concentration and the pulp quantity of pulp in the pulp supply barrel and the pulp supply time of the pulp supply pump. In actual production, the slurry supply time of the slurry supply pump is a fixed value and cannot be changed.
However, as the liquid level of the pulp in the pulp supply barrel is reduced, the water pressure is reduced, the pulp amount extracted within the same extraction time is reduced, and thus the weight of the product is reduced with the passage of time, and the forming quality of the pulp product cannot be effectively ensured.
Disclosure of Invention
The invention mainly aims to provide a pulp supply control method and pulp supply equipment, so as to solve the technical problem that the quality of a paper pulp product is greatly influenced due to the change of the amount of pulp supply slurry in the prior art.
In order to achieve the above object, according to one aspect of the present invention, there is provided a pulp supply control method including: monitoring a level height signal of the slurry supply slurry; setting the maximum height of the liquid level of the slurry supply slurry to be HmaxThe shortest time for supplying the slurry is Tmin(ii) a Calling the liquid level height signal, and comparing the height value H corresponding to the liquid level height signal with the maximum height H of the liquid levelmaxComparing the height value H with the maximum height H according to the liquid level height signalmaxThe comparison result between the above-mentioned two methods is the shortest time T for pulp supplyminAnd adjusting to obtain the slurry supply time T corresponding to the height value H corresponding to the liquid level height signal.
Further, a method of monitoring a level height signal of a slurry supply slurry comprises: and calling detection signals of the liquid level sensors with a plurality of different detection heights, and acquiring liquid level height signals according to the detection signals of the liquid level sensors with the plurality of different detection heights.
Further, the method for acquiring the liquid level height signal according to the detection signals of the liquid level sensors with a plurality of different detection heights comprises the following steps: when the liquid level height H detected by the at least two liquid level sensors is lower than the detection height of the corresponding liquid level sensor, the height signal of the liquid level sensor with the minimum detection height in the at least two liquid level sensors is acquired as a liquid level height signal.
Further, a method of monitoring a level height signal of a slurry supply slurry comprises: calling a detection signal of an upper liquid level sensor, a detection signal of a middle lower liquid level sensor and a detection signal of a lower liquid level sensor, wherein the upper liquid level sensor, the middle lower liquid level sensor and the lower liquid level sensor are arranged at equal intervals along the height direction; and outputting a liquid level height signal of the slurry supply slurry according to signals detected by the upper liquid level sensor, the upper middle liquid level sensor, the middle lower liquid level sensor and the lower liquid level sensor.
Further, the method for outputting the liquid level height signal of the slurry supply slurry according to the signals detected by the upper liquid level sensor, the middle lower liquid level sensor and the lower liquid level sensor comprises the following steps: when the upper liquid level sensor does not detect the liquid level, the upper liquid level sensor outputs a first liquid level height signal; when the upper liquid level sensor and the middle and upper liquid level sensor do not detect the liquid level, the middle and upper liquid level sensor outputs a second liquid level height signal; when the upper liquid level sensor, the middle and upper liquid level sensors and the middle and lower liquid level sensors do not detect liquid levels, the middle and lower liquid level sensors output third liquid level height signals; when the upper liquid level sensor, the middle and lower liquid level sensor and the lower liquid level sensor do not detect the liquid level, the lower liquid level sensor outputs a fourth liquid level height signal.
Further, after the upper liquid level sensor outputs the first liquid level height signal, the slurry supply control method further comprises: calling the first liquid level height signal, and acquiring slurry supply time T corresponding to the first liquid level height signal, wherein T is Tmin。
Further, a second level height signal is output by the middle-upper level sensorAfter the number, the pulp supply control method further comprises: calling the second liquid level height signal, and acquiring the pulp supply time T corresponding to the second liquid level height signal, wherein T is Tmin+0.5。
Further, after the middle upper liquid level sensor outputs the third liquid level height signal, the slurry supply control method further comprises: calling a third liquid level height signal, and acquiring slurry supply time T corresponding to the second liquid level height signal, wherein T is Tmin+1。
Further, after the middle upper liquid level sensor outputs the third liquid level height signal, the slurry supply control method further comprises: calling a third liquid level height signal, and acquiring slurry supply time T corresponding to the second liquid level height signal, wherein T is Tmin+1.5。
According to another aspect of the invention, a pulp supply device is provided, and the pulp supply control method provided above is adopted.
By applying the technical scheme of the invention, the liquid level height signal is obtained, and the height value H corresponding to the height corresponding to the liquid level height signal and the maximum height H of the liquid level are obtainedmaxComparison structure between for the shortest time T of pulp supplyminAnd adjusting to obtain the slurry supply time corresponding to the height value corresponding to the liquid level height signal. Specifically, "minimum time to pulp feed TminThe slurry supply time corresponding to the height value corresponding to the liquid level height signal is obtained by adjusting the height value of the liquid level height signal, namely the shortest slurry supply time TminIs adjusted on the basis of the value of (A), when the height value corresponding to the liquid level height signal changes, the T is correspondingly adjustedminOn the basis of the height value H, the adaptability is improved to obtain the pulp supply time corresponding to the height value H. Thus, the extracted pulp amount can be kept within a small error value as much as possible, and the technical problem that the quality of the pulp product is greatly influenced by the change of the pulp supply amount is avoided.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 shows a schematic flow diagram of a method of pulp supply control provided in accordance with an embodiment of the present invention;
fig. 2 shows a pulp supply schematic of a pulp supply apparatus provided according to an embodiment of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 and 2, a pulp supply control method according to a first embodiment of the present invention includes: monitoring a level height signal of the slurry supply slurry; setting the maximum height of the liquid level of the slurry supply slurry to be HmaxThe shortest time for supplying the slurry is Tmin(ii) a Calling the liquid level height signal, and comparing the height value H corresponding to the liquid level height signal with the maximum height H of the liquid levelmaxComparing the height value H with the maximum height H according to the liquid level height signalmaxThe comparison result between the above-mentioned two methods is the shortest time T for pulp supplyminAnd adjusting to obtain the slurry supply time T corresponding to the height value H corresponding to the liquid level height signal.
By adopting the slurry supply control method provided by the embodiment, the liquid level height signal is obtained, and the height value H corresponding to the height corresponding to the liquid level height signal and the maximum liquid level height H are obtainedmaxComparison structure between for the shortest time T of pulp supplyminAnd adjusting to obtain the slurry supply time corresponding to the height value corresponding to the liquid level height signal. Specifically, "minimum time to pulp feed TminThe slurry supply time corresponding to the height value corresponding to the liquid level height signal is obtained by adjusting the height value of the liquid level height signal, namely the shortest slurry supply time TminIs adjusted on the basis of the value of (A), when the height value corresponding to the liquid level height signal changes, the T is correspondingly adjustedminOn the basis of the height value H, the adaptability is improved to obtain the pulp supply time corresponding to the height value H. Thus, the extracted pulp amount can be kept within a small error value as much as possible, and the technical problem that the quality of the pulp product is greatly influenced by the change of the pulp supply amount is avoided.
In this embodiment, a method of monitoring a level height signal of a slurry supply slurry comprises: and calling detection signals of the liquid level sensors with a plurality of different detection heights, and acquiring liquid level height signals according to the detection signals of the liquid level sensors with the plurality of different detection heights. By adopting the method, the height range of the slurry supply slurry can be conveniently and quickly judged, so that the slurry supply time can be conveniently and accurately obtained.
Specifically, the method for acquiring the liquid level height signal according to the detection signals of the liquid level sensors with a plurality of different detection heights comprises the following steps: when the liquid level height H detected by the at least two liquid level sensors is lower than the detection height of the corresponding liquid level sensor, the height signal of the liquid level sensor with the minimum detection height in the at least two liquid level sensors is acquired as a liquid level height signal. The above method may also be understood as the highest priority level of the level sensor with the smallest detection height, the next priority level of the level sensor with the second detection height, and so on. Specifically, the difference in detection height in the present embodiment corresponds to the difference in the set height of the liquid level sensor. By adopting the method, the liquid level height signal of the slurry supply slurry can be conveniently and accurately acquired.
In this embodiment, a method of monitoring a level height signal of a slurry supply slurry comprises: and calling a detection signal of the upper liquid level sensor, a detection signal of the middle lower liquid level sensor and a detection signal of the lower liquid level sensor, wherein the upper liquid level sensor, the middle lower liquid level sensor and the lower liquid level sensor are arranged at equal intervals along the height direction. And outputting a liquid level height signal of the slurry supply slurry according to signals detected by the upper liquid level sensor, the upper middle liquid level sensor, the middle lower liquid level sensor and the lower liquid level sensor. By adopting the setting method, the liquid level height of the slurry supply slurry can be conveniently and accurately detected, so that the adjustment can be conveniently carried out on the basis of the shortest slurry supply time to obtain the corresponding slurry supply time T.
The method for outputting the liquid level height signal of the slurry supply slurry according to the signals detected by the upper liquid level sensor, the middle lower liquid level sensor and the lower liquid level sensor comprises the following steps: when the upper liquid level sensor does not detect the liquid level (corresponding to that only the upper liquid level sensor does not detect the liquid level), the upper liquid level sensor outputs a first liquid level height signal; when the upper liquid level sensor and the middle and upper liquid level sensor do not detect the liquid level, the middle and upper liquid level sensor outputs a second liquid level height signal; when the upper liquid level sensor, the middle and upper liquid level sensors and the middle and lower liquid level sensors do not detect liquid levels, the middle and lower liquid level sensors output third liquid level height signals; when the upper liquid level sensor, the middle and lower liquid level sensor and the lower liquid level sensor do not detect the liquid level, the lower liquid level sensor outputs a fourth liquid level height signal. By adopting the method, the liquid level height signal of the slurry supply slurry can be conveniently and accurately and quickly acquired according to the upper liquid level sensor, the middle lower liquid level sensor and the lower liquid level sensor, so that the slurry supply time can be conveniently and adaptively adjusted according to the liquid level height signal.
Specifically, the detection height range of the upper liquid level sensor is higher than that of the middle upper liquid level sensor, the detection height range of the middle upper liquid level sensor is higher than that of the middle lower liquid level sensor, and the detection height range of the middle lower liquid level sensor is higher than that of the lower liquid level sensor. It can also be understood that: the upper liquid level sensor is higher than the upper middle liquid level sensor, the upper middle liquid level sensor is higher than the lower middle liquid level sensor, and the lower middle liquid level sensor is higher than the lower liquid level sensor.
In this embodiment, after the upper liquid level sensor outputs the first liquid level height signal, the slurry supply control method further includes: calling the first liquid level height signal, and acquiring slurry supply time T corresponding to the first liquid level height signal, wherein T is Tmin. At this time, the corresponding liquid level height is H. Wherein 0.75 < (H)max-H)/HmaxLess than or equal to 1. By adopting the method, the liquid level height is not greatly changed at the moment, so the water pressure reduction degree is limited, and the slurry supply time T and the minimum slurry supply time T can be ensured at the momentminThe consistency is kept, the pulp supply amount at the moment is not changed greatly, and the quality of paper pulp products is ensured.
Specifically, in this embodiment, after the middle upper liquid level sensor outputs the second liquid level height signal, the slurry supply control method further includes: calling the second liquid level height signal, and acquiring the pulp supply time T corresponding to the second liquid level height signal, wherein T is Tmin+0.5 (i.e. 0.5 seconds on the basis of the shortest slurry feed time). At this time, the corresponding liquid level height is H, wherein 0.5 < (H)max-H) /HmaxLess than or equal to 0.75. By adopting the method, when the height is in the range, the liquid level changes gradually to be larger, and the pulp supply amount can be conveniently ensured to be maintained in a stable range by increasing the pulp supply time, so that the quality of the pulp product is effectively ensured.
In this embodiment, after the middle upper level sensor outputs the third liquid level height signal, the slurry supply control method further includes: calling a third liquid level height signal, and acquiring slurry supply time T corresponding to the second liquid level height signal, wherein T is Tmin+1 (i.e. 1 second on the basis of the shortest slurry feed time). At this time, the corresponding liquid level height is H, where 0.25 < (H)max-H)/HmaxLess than or equal to 0.5. In this way, when the height is within the above range, the water pressure change is larger at this time, and the stability of the slurry supply amount can be facilitated to be better secured by setting the slurry supply time to the above value.
Specifically, after the middle upper liquid level sensor outputs the third liquid level height signal, the slurry supply control method further includes: calling a third liquid level height signal, and acquiring slurry supply time T corresponding to the second liquid level height signal, wherein T is Tmin+1.5 (i.e. 1.5 seconds added based on the shortest slurry feed time) where 0 < (Hmax-H)/Hmax ≦ 0.25. In this way, when the height is within the above range, the water pressure is excessively lowered, and the stability of the pulp supply amount can be easily and effectively ensured by setting the pulp supply time to the above value, so as to ensure the quality of the pulp product.
In the invention, a liquid level detection device, namely a liquid level sensor, is arranged in a pulp supply barrel, the assembly position is shown in figure 2, the height of the liquid level of the pulp supply barrel is detected, and a feedback signal is given. The liquid level feedback signal of the slurry supply barrel controls the slurry pumping time of the slurry pump, so that the weight of the product is ensured. The weight of the product decreases over time, especially when the level of the supply tank is below half a hour. The weight of the product cannot be kept within a very narrow range as the slurry feed time varies.
Specifically, because the liquid level of the paper pulp in the pulp supply barrel can affect the weight of the product, a liquid level detection device is required to be added in the pulp supply barrel and is distributed at the upper, middle, lower and lower positions of the pulp supply barrel, and when the liquid level is lower than the upper liquid level detection device, the upper liquid level detection device can output a corresponding signal to indicate that the liquid level of the pulp supply barrel is lower than the upper liquid level. When the liquid level of the pulp supply barrel is lower than the upper middle liquid level detection device, the upper middle liquid level detection device outputs a corresponding signal, the priority of the upper middle liquid level signal is higher than the priority of the upper liquid level, the upper liquid level signal is shielded, the liquid level is indicated to be lower than the upper middle liquid level, when the liquid level of the pulp supply barrel is lower than the lower middle liquid level detection device, the lower middle liquid level detection device outputs a corresponding signal, the priority of the lower middle liquid level signal is higher than the priority of the upper middle liquid level, the upper middle liquid level signal is shielded, the liquid level is indicated to be lower than the lower middle liquid level, when the liquid level of the pulp supply barrel is lower than the lower middle liquid level detection device, the lower liquid level detection device outputs a corresponding signal, the priority of the lower liquid level signal is higher than the priority of the lower middle liquid level, the middle liquid level signal is shielded, the liquid level is indicated to be lower than the lower liquid level, and the control system obtains an output signal, judge the liquid level that supplies thick liquid barrel thick liquid, control system gives the different operating duration of confession thick liquid pump according to the difference of liquid level to supply the thick liquid time to guarantee the weight of product according to the difference, the more ideal condition is that level sensor can detect real-time liquid level, supplies thick liquid time along with the liquid level change real-time change, more can guarantee the uniformity of product weight like this, thereby guarantees product quality, and this is the mode of a fine assurance product weight.
The second embodiment of the invention provides pulp supply equipment, and the pulp supply equipment adopts the pulp supply control method.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects: through the liquid level of monitoring confession thick liquid bucket, the time of the confession thick liquid of output corresponding signal confession thick liquid pump, the liquid level is lower, and confession thick liquid time is longer to this compensates the influence that supplies the product weight reduction that thick liquid bucket liquid level reduction brought, makes product weight tend to a stable value, and the weight difference is very little, guarantees the quality of product with this.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method of controlling slurry supply, comprising:
monitoring a level height signal of the slurry supply slurry;
setting the maximum height of the liquid level of the slurry supply slurry to be HmaxThe shortest time for supplying the slurry is Tmin；
Calling the liquid level height signal, and enabling a height value H corresponding to the liquid level height signal and the maximum liquid level height HmaxComparing the liquid level height signal with the maximum liquid level height HmaxThe comparison result therebetween for the minimum time T of the stock supplyminAnd adjusting to obtain the slurry supply time T corresponding to the height value H corresponding to the liquid level height signal.
2. A method of slurry supply control in accordance with claim 1, wherein the method of monitoring a level height signal of a slurry supply slurry comprises:
and calling detection signals of liquid level sensors with a plurality of different detection heights, and acquiring the liquid level height signals according to the detection signals of the liquid level sensors with the plurality of different detection heights.
3. The slurry supply control method according to claim 2, wherein the method of obtaining the liquid level height signal from the detection signals of the liquid level sensors of the plurality of different detection heights comprises:
when the liquid level heights H detected by the at least two liquid level sensors are all lower than the corresponding detection heights of the liquid level sensors, the height signal of the liquid level sensor with the minimum detection height in the at least two liquid level sensors is acquired as the liquid level height signal.
4. A method of slurry supply control in accordance with claim 1, wherein the method of monitoring a level height signal of a slurry supply slurry comprises:
calling a detection signal of an upper liquid level sensor, a detection signal of a middle lower liquid level sensor and a detection signal of a lower liquid level sensor, wherein the upper liquid level sensor, the middle lower liquid level sensor and the lower liquid level sensor are arranged at equal intervals along the height direction;
and outputting a liquid level height signal of the slurry supply slurry according to signals detected by the upper liquid level sensor, the upper middle liquid level sensor, the middle lower liquid level sensor and the lower liquid level sensor.
5. A method for controlling slurry supply according to claim 4, wherein the method for outputting the level height signal of the slurry supply slurry based on the signals detected by the upper level sensor, the upper middle level sensor, the lower middle level sensor and the lower level sensor comprises:
when the upper liquid level sensor does not detect the liquid level, the upper liquid level sensor outputs a first liquid level height signal;
when the upper liquid level sensor and the middle and upper liquid level sensor do not detect liquid levels, the middle and upper liquid level sensor outputs a second liquid level height signal;
when the upper liquid level sensor, the middle and upper liquid level sensor and the middle and lower liquid level sensor do not detect liquid levels, the middle and lower liquid level sensor outputs a third liquid level height signal;
and when the upper liquid level sensor, the middle and lower liquid level sensor and the lower liquid level sensor do not detect the liquid level, the lower liquid level sensor outputs a fourth liquid level height signal.
6. The slurry supply control method according to claim 5, wherein after the upper level sensor outputs the first level height signal, the slurry supply control method further comprises:
calling the first liquid level height signal to obtain slurry supply time T corresponding to the first liquid level height signal, wherein T is Tmin。
7. The slurry supply control method according to claim 5, wherein after the upper middle liquid level sensor outputs the second liquid level height signal, the slurry supply control method further comprises:
calling the second liquid level height signal to obtain a pulp supply time T corresponding to the second liquid level height signal, wherein T is Tmin+0.5。
8. The slurry supply control method according to claim 5, wherein after the upper middle liquid level sensor outputs a third liquid level height signal, the slurry supply control method further comprises:
calling the third liquid level height signal to obtain a slurry supply time T corresponding to the second liquid level height signal, wherein T is Tmin+1。
9. The slurry supply control method according to claim 5, wherein after the upper middle liquid level sensor outputs a third liquid level height signal, the slurry supply control method further comprises:
calling the third liquid level height signal to obtain a slurry supply time T corresponding to the second liquid level height signal, wherein T is Tmin+1.5。
10. A pulp supply apparatus characterized by employing the pulp supply control method according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111679996.XA CN114326839B (en) | 2021-12-31 | 2021-12-31 | Slurry supply control method and slurry supply equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111679996.XA CN114326839B (en) | 2021-12-31 | 2021-12-31 | Slurry supply control method and slurry supply equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114326839A true CN114326839A (en) | 2022-04-12 |
| CN114326839B CN114326839B (en) | 2024-04-16 |
Family
ID=81022603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111679996.XA Active CN114326839B (en) | 2021-12-31 | 2021-12-31 | Slurry supply control method and slurry supply equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114326839B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6032885A (en) * | 1997-10-31 | 2000-03-07 | Beloit Technologies, Inc. | Control system for a repulping apparatus |
| CN210251974U (en) * | 2019-05-10 | 2020-04-07 | 南通鸿鼎威雅地毯有限公司 | Intelligent size mixing device |
| CN212007429U (en) * | 2020-05-26 | 2020-11-24 | 苏州凌威新能源科技有限公司 | Liquid level detecting and monitoring system |
-
2021
- 2021-12-31 CN CN202111679996.XA patent/CN114326839B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6032885A (en) * | 1997-10-31 | 2000-03-07 | Beloit Technologies, Inc. | Control system for a repulping apparatus |
| CN210251974U (en) * | 2019-05-10 | 2020-04-07 | 南通鸿鼎威雅地毯有限公司 | Intelligent size mixing device |
| CN212007429U (en) * | 2020-05-26 | 2020-11-24 | 苏州凌威新能源科技有限公司 | Liquid level detecting and monitoring system |
Non-Patent Citations (2)
| Title |
|---|
| 张向群;魏继丰;张凯;: "石灰石―石膏湿法烟气脱硫工艺在汕头电厂的应用", 东北电力技术, no. 12 * |
| 甄新平;李全善;魏环;赵众;潘立登;: "一种新型模糊液位控制及其应用", 化工学报, no. 07 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114326839B (en) | 2024-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FI116588B (en) | Fast transverse and machine direction adjustment in a web making machine | |
| US20170160186A1 (en) | Flow rate balanced, dynamically adjustable sheath delivery system for flow cytometry | |
| US20210187961A1 (en) | Printing apparatus and corresponding method | |
| CN103373075B (en) | Ceramic ink jet printing machine ink path round-robin method and device thereof and ceramic ink jet printing machine | |
| US4624745A (en) | Foam controller | |
| CN114326839A (en) | Pulp supply control method and pulp supply equipment | |
| CN106799894B (en) | Ink feeding system | |
| CN109709798A (en) | A kind of vehicle mounted square cabin automatic hoisting mechanism based on PID, method and shelter system | |
| CN107250053A (en) | Electrolytic water generating device and electrolysis water | |
| CN110382873B (en) | Method for regulating the rotational speed of a centrifugal pump | |
| CN205148929U (en) | Three -dimensional printer | |
| CN107952628A (en) | The coating control method and extrusion coater of extrusion coater | |
| CA3000034A1 (en) | Neutralization plant | |
| CN112319068A (en) | Intelligent ink path pressure control system of ink-jet printing equipment and control method thereof | |
| CN105714296B (en) | The flow regulator of etching media and the flow rate adjusting method of etching media | |
| CN109203629A (en) | A kind of pattern registration method and system for two-sided lamination compounding machine | |
| CN103217915B (en) | The control method of vehicle platform level-regulating system | |
| EP4023345A1 (en) | Circulation device | |
| SE514375C2 (en) | Liquid control for spray painting applications | |
| CN107574844A (en) | A kind of posture TT＆C system and method for the installation of immersed tube tunnel final joint | |
| JPH08294690A (en) | Strongly acidic water making apparatus | |
| CN108227772A (en) | Product distributing equipment including pressure controller | |
| CN106110995A (en) | Coating device and the control method of coating device | |
| EP2207614A1 (en) | Arrangement and process for providing a liquid mixture which is preferably variable with time | |
| CN210190879U (en) | Automatic pigment supplement feedback device of spray painting equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |