CN210561443U - Head box spout lip temperature control device - Google Patents
Head box spout lip temperature control device Download PDFInfo
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- CN210561443U CN210561443U CN201920943624.5U CN201920943624U CN210561443U CN 210561443 U CN210561443 U CN 210561443U CN 201920943624 U CN201920943624 U CN 201920943624U CN 210561443 U CN210561443 U CN 210561443U
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Abstract
The utility model relates to a headbox spout lip plate temperature control device, which comprises an upper lip plate and a lower lip plate, wherein the upper lip plate is arranged at the upper end of a pulp outlet of a headbox, the lower lip plate is arranged at the lower end of the pulp outlet of the headbox, a spout for forming paper web by the pulp is formed in the space between the upper lip plate and the lower lip plate, the device also comprises an upper lip plate hot water interlayer and a lower lip plate hot water interlayer, the upper lip plate hot water interlayer is arranged on the upper surface of the upper lip plate, the lower lip plate hot water interlayer is arranged on the lower surface of the lower lip plate, the upper lip plate hot water interlayer and the lower lip plate hot water interlayer are both internally provided with a containing cavity for hot water circulation, the upper water outlet of the upper lip plate hot water interlayer is communicated with the lower water inlet of the lower lip plate hot water interlayer, a hot water supply system is arranged between the upper water inlet and the lower water outlet, the upper lip plate hot water interlayer and the lower lip plate hot water interlayer are arranged and combined with the circulation supply of the hot water supply system, the uniformity of paper formation is ensured.
Description
Technical Field
The utility model relates to a paper manufacture equipment technical field, concretely relates to head box spout lip temperature control device.
Background
In the papermaking forming process, the head box plays an important role in the quality of paper forming, paper pulp is sprayed out from a nozzle formed between an upper lip plate and a lower lip plate of the head box to form a paper web, and therefore the structural stability between the upper lip plate and the lower lip plate of the head box can influence the uniformity of the finally formed paper web. In production, the temperature of paper pulp can reach 50-60 ℃, the hot paper pulp only contacts with the inner surfaces of the upper lip plate and the lower lip plate in the forming process, and the outer surfaces of the upper lip plate and the lower lip plate are exposed at room temperature, so that the local deformation of the upper lip plate and the lower lip plate is often caused due to the temperature difference between the inner surface and the outer surface of the upper lip plate and the lower lip plate, the uniform forming of the paper pulp is influenced, and the unevenness of paper webs is caused.
SUMMERY OF THE UTILITY MODEL
For the upper and lower lip board that solves current head box have the difference in temperature because of the interior external surface and make upper and lower lip board produce local deformation, and then influence the technical problem of paper pulp shaping homogeneity, the utility model provides a head box spout lip board temperature control device.
In order to solve the technical problem, the utility model provides a following technical scheme:
a temperature control device for a nozzle lip plate of a head box comprises an upper lip plate and a lower lip plate, wherein the upper lip plate is arranged at the upper end of a paper pulp outlet of the head box, the lower lip plate is arranged at the lower end of a pulp outlet of the head box, a nozzle for forming paper web by the pulp is formed in the space between the upper lip plate and the lower lip plate, the lower lip plate further comprises an upper lip plate hot water interlayer and a lower lip plate hot water interlayer, the upper lip plate hot water interlayer is arranged on the upper surface of the upper lip plate, the lower lip plate hot water interlayer is arranged on the lower surface of the lower lip plate, the upper lip plate hot water interlayer and the lower lip plate hot water interlayer are both internally provided with accommodating cavities for supplying hot water and circulating, the upper water outlet of the upper lip plate hot water interlayer is communicated with the lower water inlet of the lower lip plate hot water interlayer, and a hot water supply system is arranged between the upper water inlet of the upper lip plate hot water interlayer and the lower water outlet of the lower lip plate hot water interlayer.
Further, hot water supply system includes storage water tank, heater and vacuum pump, the import intercommunication of heater the water tank export of storage water tank, the exit linkage of heater the pump inlet of vacuum pump, go up the inlet of water through the pipe connection the pump outlet of vacuum pump, the delivery port is connected down the water tank import of storage water tank, the heater heats the water in the storage water tank to suitable temperature, then vacuum pump sends to in the upper lip board hot water intermediate layer again, then flows to in the lower lip board hot water intermediate layer, and the rethread delivery port backward flow is to the storage water tank in, and the effect of continuous heating the upper surface of upper lip board and the lower surface of lower lip board can be played in order to solve the upper and lower surface of upper lip board and lower lip board and influence the problem of paper web shaping homogeneity because of appearing the difference in temperature, in order to ensure the shaping homogeneity of paper web.
Further comprises a temperature control system, wherein the temperature control system comprises an upper temperature sensor, a lower temperature sensor and a control cabinet, the upper temperature sensor is arranged in the inner cavity of the upper lip plate hot water interlayer, the lower temperature sensor is arranged in the inner cavity of the lower lip plate hot water interlayer, the upper temperature sensor and the lower temperature sensor are both electrically connected with the control cabinet, the heater is electrically connected with the control cabinet, the upper temperature sensor is used for monitoring the water temperature in the upper lip hot water interlayer in real time and feeding back temperature information to the control cabinet, the lower temperature sensor is used for monitoring the water temperature of the hot water interlayer of the lower lip plate in real time and feeding back the temperature information to the control cabinet, the control cabinet controls the start and stop of the heater according to the fed back temperature information, and heating power to achieve the purpose that the temperature of hot water circulating in the hot water supply system can be constantly maintained within a proper temperature range.
Furthermore, the vacuum pump is a variable frequency pump, the vacuum pump is electrically connected with the control cabinet, and the vacuum pumping speed of the vacuum pump can be controlled through the control cabinet so as to control the circulation speed of hot water.
Furthermore, a water replenishing pipeline communicated with an external water source is arranged on the water storage tank, so that the aim of replenishing water sources to the hot water supply system in time is fulfilled.
Furthermore, go up the hot water interlayer top of lip board and be equipped with the breather pipe, the breather pipe intercommunication the chamber that holds of going up the hot water interlayer of lip board for the vapor in the hot water interlayer of lip board is gone up in timely evacuation.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the upper surface of the upper lip plate and the lower surface of the lower lip plate are respectively provided with the upper lip plate hot water interlayer and the lower lip plate hot water interlayer, hot water circulation supply of a hot water supply system is added, so that the temperatures of the inner surface and the outer surface of the upper lip plate and the lower lip plate are the same or can be kept in a smaller temperature range, the problem that the upper lip plate and the lower lip plate are locally deformed due to the temperature difference between the inner surface and the outer surface of the upper lip plate and the lower lip plate is solved, the uniformity of paper forming is ensured, and the purpose that the hot water temperature in the hot water supply system can be constantly kept in a proper temperature range is also achieved by the.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a headbox nozzle lip temperature control device of the present invention;
in the figure: 1. an upper lip plate; 2. a lower lip plate; 3. a head box; 4. a spout; 5. an upper lip plate hot water interlayer; 51. an upper water inlet; 52. an upper water outlet; 6. a lower lip plate hot water interlayer; 61. a lower water inlet; 62. a lower water outlet; 7. a water storage tank; 71. a water tank inlet; 72. an outlet of the water tank; 8. a heater; 81. an inlet; 82. an outlet; 9. a vacuum pump; 10. a pipeline; 11. a control cabinet; 12. a water replenishing pipeline; 13. a breather tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings.
Fig. 1 shows a headbox spout lip temperature control device, including upper lip 1 and lower lip 2, upper lip 1 is established in the upper end of 3 paper pulp exports of head box, lower lip 2 is established at the lower extreme of 3 paper pulp exports of head box, the space between upper lip 1 and the lower lip 2 forms the spout 4 that is used for paper pulp to form the paper web, still include upper lip hot water intermediate layer 5 and lower lip hot water intermediate layer 6, upper lip hot water intermediate layer 5 is established on the upper surface of upper lip 1, lower lip hot water intermediate layer 6 is established on the lower surface of lower lip 2, the inside of upper lip hot water intermediate layer 5 and lower lip hot water intermediate layer 6 all has the chamber that holds that the hot water circulation, upper outlet 52 of upper lip hot water intermediate layer 5 communicates lower inlet 61 of lower lip hot water intermediate layer 6, be equipped with the hot water supply system between upper inlet 51 of upper lip hot water intermediate layer 5 and the lower outlet 62 of lower lip hot water intermediate layer 6.
Referring to fig. 1, the hot water supply system comprises a water storage tank 7, a heater 8 and a vacuum pump 9, wherein an inlet 81 of the heater 8 is communicated with a tank outlet 71 of the water storage tank 7, an outlet 81 of the heater 8 is connected with a pump inlet of the vacuum pump 9, an upper water inlet 51 is connected with a pump outlet of the vacuum pump 9 through a pipeline 10, a lower water outlet 62 is connected with the tank inlet 71 of the water storage tank 7, the heater 8 heats water in the water storage tank 7 to a proper temperature, then pumped into the upper lip hot water interlayer 5 by a vacuum pump 9, flows into the lower lip hot water interlayer 6, and then flows back into the water storage tank 7 through the lower water outlet 62 for circulating supply of hot water, the effect of continuously heating the upper surface of the upper lip 1 and the lower surface of the lower lip 2 can be achieved, the problem that the upper surface and the lower surface of the upper lip 1 and the lower lip 2 influence the forming uniformity of the paper web due to temperature difference is solved, and the forming uniformity of the paper web is ensured.
Referring to fig. 1, the temperature control system further includes an upper temperature sensor (not shown), a lower temperature sensor (not shown) and a control cabinet 11, the upper temperature sensor is disposed in the inner cavity of the upper lip hot water interlayer 5, the lower temperature sensor is disposed in the inner cavity of the lower lip hot water interlayer 6, the upper temperature sensor and the lower temperature sensor are both electrically connected to the control cabinet 11, the heater 8 is electrically connected to the control cabinet 11, the upper temperature sensor is used for monitoring the water temperature in the upper lip hot water interlayer 5 in real time and feeding back the temperature information to the control cabinet 11, the lower temperature sensor is used for monitoring the water temperature in the lower lip hot water interlayer 6 in real time and feeding back the temperature information to the control cabinet 11, the control cabinet 11 controls the start and stop of the heater 8 according to the temperature information fed back, and the heating power is controlled, so as to achieve the purpose that the temperature of the hot water circulating in the hot water supply system can be kept within a proper temperature range at any time, the control cabinet 11 is a computer, and similarly, the control cabinet 11 may also be a single chip microcomputer sold in the market or a programmable controller such as a PLC, and the technology of controlling the start and stop of the heater 8 and the heating power by the temperature signal fed back by the temperature sensor is the prior art and is not described herein in any greater detail.
Preferably, the vacuum pump 9 is a variable frequency pump, the vacuum pump 9 is electrically connected with the control cabinet 11, and the vacuum pumping speed of the vacuum pump 9 can be controlled through the control cabinet 11, so as to control the circulation speed of the hot water.
Referring to fig. 1, a water replenishing pipeline 12 communicated with an external water source is arranged on the water storage tank 7, so that the purpose of replenishing water source in time for the hot water supply system is realized.
Preferably, the top of the upper lip plate hot water interlayer 5 is provided with a vent pipe 13, and the vent pipe 13 is communicated with the accommodating cavity of the upper lip plate hot water interlayer 5 and is used for emptying water vapor in the upper lip plate hot water interlayer 5 in time.
The utility model discloses a theory of operation: the control cabinet 11 starts the heater 8, heat the water that will pass through from the storage water tank 7 to the temperature that accords with paper pulp, then pump to the hot water interlayer of upper lip board 5 by the vacuum pump 9, heat the upper surface of upper lip board 1, later flow to the hot water interlayer of lower lip board 6, heat the lower surface of lower lip board 2, later flow back to the storage water tank 7 through lower delivery port 62 again, through the continuous pumping action of vacuum pump 9, the circulation heating purpose of hot water to upper and lower lip board has been realized, in order to solve upper and lower lip board and produce the problem of local deformation because of there is the difference in temperature in the internal and external surface, ensure the fashioned homogeneity of paper.
Compared with the prior art, the beneficial effects of this embodiment are as follows:
the upper surface of the upper lip plate and the lower surface of the lower lip plate are respectively provided with the upper lip plate hot water interlayer and the lower lip plate hot water interlayer, hot water circulation supply of a hot water supply system is added, so that the temperatures of the inner surface and the outer surface of the upper lip plate and the lower lip plate are the same or can be kept in a smaller temperature range, the problem that the upper lip plate and the lower lip plate are locally deformed due to the temperature difference between the inner surface and the outer surface of the upper lip plate and the lower lip plate is solved, the uniformity of paper forming is ensured, and the purpose that the hot water temperature in the hot water supply system can be constantly kept in a proper temperature range is also achieved by the.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (6)
1. A temperature control device for a nozzle lip plate of a head box comprises an upper lip plate and a lower lip plate, wherein the upper lip plate is arranged at the upper end of a paper pulp outlet of the head box, the lower lip is arranged at the lower end of the pulp outlet of the headbox, the space between the upper lip and the lower lip forms a spout for the pulp to form a web, it is characterized by also comprising an upper lip plate hot water interlayer and a lower lip plate hot water interlayer, wherein the upper lip plate hot water interlayer is arranged on the upper surface of the upper lip plate, the lower lip plate hot water interlayer is arranged on the lower surface of the lower lip plate, the upper lip plate hot water interlayer and the lower lip plate hot water interlayer are both internally provided with accommodating cavities for supplying hot water and circulating, the upper water outlet of the upper lip plate hot water interlayer is communicated with the lower water inlet of the lower lip plate hot water interlayer, and a hot water supply system is arranged between the upper water inlet of the upper lip plate hot water interlayer and the lower water outlet of the lower lip plate hot water interlayer.
2. The device for controlling the temperature of the nozzle lip of the headbox according to claim 1, wherein the hot water supply system comprises a water storage tank, a heater and a vacuum pump, wherein an inlet of the heater is communicated with a tank outlet of the water storage tank, an outlet of the heater is connected with a pump inlet of the vacuum pump, the upper water inlet is connected with a pump outlet of the vacuum pump through a pipeline, and the lower water outlet is connected with a tank inlet of the water storage tank.
3. The headbox spout lip temperature control device of claim 2, further comprising a temperature control system, wherein the temperature control system comprises an upper temperature sensor, a lower temperature sensor and a control cabinet, the upper temperature sensor is arranged in the inner cavity of the upper lip hot water interlayer, the lower temperature sensor is arranged in the inner cavity of the lower lip hot water interlayer, the upper temperature sensor and the lower temperature sensor are both electrically connected with the control cabinet, and the heater is electrically connected with the control cabinet.
4. The device as claimed in claim 3, wherein the vacuum pump is a variable frequency pump, and the vacuum pump is electrically connected to the control cabinet.
5. The device for controlling the temperature of the lip plate of the nozzle of the headbox according to claim 2, wherein the water storage tank is provided with a water replenishing pipeline communicated with an external water source.
6. The headbox spout lip temperature control device of claim 1, wherein a breather pipe is arranged on the top of the upper lip hot water interlayer, and the breather pipe is communicated with a containing cavity of the upper lip hot water interlayer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920943624.5U CN210561443U (en) | 2019-06-21 | 2019-06-21 | Head box spout lip temperature control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920943624.5U CN210561443U (en) | 2019-06-21 | 2019-06-21 | Head box spout lip temperature control device |
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| Publication Number | Publication Date |
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| CN210561443U true CN210561443U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920943624.5U Active CN210561443U (en) | 2019-06-21 | 2019-06-21 | Head box spout lip temperature control device |
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| CN (1) | CN210561443U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112301782A (en) * | 2020-09-15 | 2021-02-02 | 山鹰华南纸业有限公司 | Multilayer head box lip heat compensation method |
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2019
- 2019-06-21 CN CN201920943624.5U patent/CN210561443U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112301782A (en) * | 2020-09-15 | 2021-02-02 | 山鹰华南纸业有限公司 | Multilayer head box lip heat compensation method |
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