CN113670017B - System and method for controlling plate quality by utilizing waste heat - Google Patents
System and method for controlling plate quality by utilizing waste heat Download PDFInfo
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- CN113670017B CN113670017B CN202110973536.1A CN202110973536A CN113670017B CN 113670017 B CN113670017 B CN 113670017B CN 202110973536 A CN202110973536 A CN 202110973536A CN 113670017 B CN113670017 B CN 113670017B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
- F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/10—Temperature; Pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/003—Handling, e.g. loading or unloading arrangements for articles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
- F26B25/14—Chambers, containers, receptacles of simple construction
- F26B25/18—Chambers, containers, receptacles of simple construction mainly open, e.g. dish, tray, pan, rack
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a system for controlling the quality of a plate by utilizing waste heat, which comprises a dryer, an air box mechanism arranged in the dryer and a preheating return air system arranged outside the dryer, wherein the air box mechanism supplies air to the edge of a gypsum board, the preheating return air system recovers air in the dryer, mixes the air with external air, mixes the mixed air to a fixed temperature and conveys the mixed air to the dryer. The invention adjusts the air distribution to the edge of the gypsum board according to the thickness of the edge of the gypsum board by arranging the air box mechanism, is suitable for the gypsum boards with different specifications, forms effective internal circulation by using single small return air, ensures the stable operation of production, adjusts the temperature of an air body injected into the air box mechanism by arranging the preheating return air system, and improves the production quality of the gypsum board.
Description
Technical Field
The invention relates to the field of gypsum board production, in particular to a system and a method for controlling the quality of a board by utilizing waste heat.
Background
The gypsum board is the material that satisfies customer's fitment demand, in order to guarantee the aesthetic property of fitment, produces the gypsum board for the wedge limit, because the thickness on wedge limit is thinner than the gypsum board surface, normal gypsum board for example thickness 9.5mm, wedge limit thickness is 8.2mm, and the difference of that thickness will cause the heat energy that stoving in-process panel needs to be different. The shaping of gypsum board is dried and is got into the desiccator and be a confined whole, and the temperature of the inside is balanced certain, and the wedge limit of gypsum board both sides is thinner than other positions, and the heat of drying demand is also low simultaneously, and this just causes the temperature and hardly controls, and the high temperature can cause the gypsum board wedge limit to cross fire, still can cause the high board core of limit portion temperature fragile risk that has the board edge fracture, and the board edge temperature is suitable can be that gypsum board surface temperature is low, has the soft phenomenon of board.
Disclosure of Invention
Therefore, the invention provides a system and a method for controlling the quality of a plate by utilizing waste heat, which effectively solve the problem of the prior art that the quality of the plate is reduced due to uneven heating of the plate.
In order to solve the technical problems, the invention specifically provides the following technical scheme: a system for controlling the quality of a plate by utilizing waste heat comprises a dryer, an air box mechanism arranged in the dryer and a preheating air return system arranged outside the dryer, wherein the air box mechanism supplies air to the edge of a gypsum board, the preheating air return system recovers air in the dryer, mixes the air with external air, mixes the mixed air to a fixed temperature and conveys the mixed air to the dryer;
the air box mechanism comprises a connecting cabin arranged outside the dryer, a ventilation main pipe connected to the connecting cabin, a plurality of ventilation auxiliary pipes connected to the ventilation main pipe, and a position adjusting device connected between the ventilation main pipe and the ventilation auxiliary pipes, wherein the position adjusting device is used for adjusting the angles of the ventilation auxiliary pipes;
the preheating and air returning system comprises a first air conveying pipe connected to the connecting cabin, a preheater connected to the first air conveying pipe, an air inlet module and an air body recycling module connected to the preheater, and a preheating adjusting module arranged in the preheater, wherein the air inlet module sucks external natural air into the preheater, and the air body recycling module recycles the air body blown to the tail part of the dryer from the air box mechanism into the preheater for recycling;
the preheating adjusting module is used for mixing and exchanging the air bodies transported in the air inlet module and the air body recovery module to form a drying air body with a fixed temperature, and the drying air body is transported into the dryer through the ventilation main pipe.
The air inlet module comprises a second air conveying pipe connected to the preheater, a preheating fan connected to the end part of the second air conveying pipe, and a preheating fan flashboard connected to the end part of the preheating fan, and the preheating fan flashboard controls the air quantity entering the preheater from the preheating fan in unit time;
the air recovery module comprises a third air conveying pipe connected to the preheater, and a waste gas fan and a waste gas gate plate which are connected to the third air conveying pipe, wherein one end of the third air conveying pipe is connected to the dryer, the third air conveying pipe is communicated with the inside of the dryer, and the waste gas gate plate controls the air quantity entering the preheater through the waste gas fan in unit time;
the preheating adjusting module comprises a data processing control unit, a temperature measuring component, a rotating component and an exhaust fan, the temperature measuring component is arranged in the preheater, the rotating component drives the temperature measuring component to rotate so as to enable the temperature measuring component to be adjusted to a detection state or a gas transmission state, and the exhaust fan is connected to the output end of the preheater;
the temperature measurement subassembly is based on the detection state is in fill with the wind body in the preheater after detecting the wind body temperature, and will detect data transmission extremely data processing the control unit, be provided with the threshold value of wind body temperature in the data processing the control unit, data processing the control unit receive real-time detection's wind body temperature and with detect data with the threshold value is compared, and according to comparison result control preheat the fan flashboard with the waste gas flashboard is the regulation and control respectively and is got into the natural amount of wind and the hot-blast volume of preheater and control under the inconsistent condition of comparison result exhaust fan will gas outgoing in the preheater.
As a preferable scheme of the invention, the first air conveying pipe, the second air conveying pipe and the third air conveying pipe are embedded in the side wall of the preheater.
As a preferred scheme of the invention, the temperature measuring component comprises a connecting cylinder rotatably arranged in the preheater and a plurality of temperature detecting sensors arranged in the connecting cylinder, the rotating component drives the connecting cylinder to rotate so as to adjust the closed state, the semi-communication state and the full-communication state of the connecting cylinder, and the temperature detecting sensors monitor the temperature of the air entering the connecting cylinder when the connecting cylinder is in the closed state;
the connecting cylinder is provided with a through hole communicated with the first air pipe, the second air pipe and the third air pipe;
the closed state with half the intercommunication state correspond to do detect the state, the full intercommunication state corresponds to do the gas transmission state, the closed state does the connecting cylinder inside not with first gas-supply pipe, second gas-supply pipe with third gas-supply pipe intercommunication, half the intercommunication state does the connecting cylinder inside with the second gas-supply pipe with third gas-supply pipe intercommunication, the full intercommunication state does the connecting cylinder inside with first gas-supply pipe, second gas-supply pipe with third gas-supply pipe intercommunication.
As a preferable scheme of the invention, the rotating assembly comprises a preheating tank opening rotationally connected to the head of the preheater, a rotating gear clamped in the preheating tank opening, a transmission gear meshed with the rotating gear, and a first driving motor connected to the transmission gear, and the lower end of the rotating gear is connected with the connecting cylinder.
As a preferable scheme of the present invention, the positioning device includes a connecting plate connected to the main ventilation pipe, a telescopic pipe connected to the connecting plate, an adjusting plate connected to the telescopic pipe, and an adjusting mechanism provided on the adjusting plate, the main ventilation pipe is disposed on the connecting plate in a penetrating manner, the sub ventilation pipe is disposed on the adjusting plate in a penetrating manner, the main ventilation pipe and the sub ventilation pipe are communicated with each other through the telescopic pipe, and the adjusting mechanism controls rotation of the adjusting plate.
As a preferable scheme of the present invention, the adjusting mechanism includes a fixing plate disposed on one side of the adjusting plate, an adjusting bolt connected to the adjusting plate, a first adjusting gear connected to one end of the adjusting bolt, a second adjusting gear engaged on one side of the first adjusting gear, and a second driving motor connected to the second adjusting gear, the first adjusting gear and the second adjusting gear are both rotatably disposed on the fixing plate, the adjusting bolt penetrates through the fixing plate, and the adjusting bolt is connected to an upper edge position of the first adjusting gear;
wherein, be provided with on the fixed plate and supply the adjusting bolt pivoted slip arc groove.
As a preferable aspect of the present invention, a control method of a system for controlling a quality of a plate material using waste heat, includes the steps of:
step 100, presetting a threshold value of the temperature of a dry air body, and injecting the air body into a preheater for mixing through an air inlet module and an air body recovery module;
step 200, the temperature measuring component monitors the temperature of the mixed air body in the preheater in real time and compares the temperature of the mixed air body monitored in real time with a threshold value through a data processing control unit;
step 300, the data processing control unit repeatedly controls the preheating fan flashboard and the waste gas flashboard to adjust the natural air quantity and the hot air quantity entering the preheater according to the comparison result so as to adjust the mixing ratio of the natural air quantity and the hot air quantity, adjusts the connecting cylinder to be in a closed state and controls the exhaust fan to exhaust;
and 400, repeatedly adjusting the temperature of the mixed air in the preheater to 90-95 ℃ to stop exhausting, and adjusting the connecting cylinder to be in a full-communication state to convey the air into the dryer.
Compared with the prior art, the invention has the following beneficial effects:
the invention adjusts the air distribution to the edge of the gypsum board according to the thickness of the edge of the gypsum board by arranging the air box mechanism, is suitable for the gypsum boards with different specifications, forms effective internal circulation by using single small return air, ensures the stable operation of production, adjusts the temperature of an air body injected into the air box mechanism by arranging the preheating return air system, and improves the production quality of the gypsum board.
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 should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
Fig. 1 is a schematic structural diagram of a system for controlling the quality of a plate material by using waste heat according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a portion of a preheat adjustment module in an embodiment of the invention;
FIG. 3 is a schematic structural view of a bellows mechanism in an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an adjustment mechanism in an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a sliding arc chute according to an embodiment of the present invention;
fig. 6 is a flowchart of a control method of a system for controlling the quality of a plate material by using waste heat according to an embodiment of the present invention.
The reference numerals in the drawings denote the following, respectively:
1-a dryer; 2-an air box mechanism; 3-preheating an air return system;
21-a connection cabin; 22-a ventilation main pipe; 23-a ventilation secondary pipe; 24-a positioning device;
31-a first gas line; 32-a preheater; 33-an air intake module; 34-a wind recovery module; 35-preheating adjusting module;
241-a connecting plate; 242-telescoping tube; 243-adjusting plate; 244-an adjustment mechanism;
331-a second gas delivery conduit; 332-preheating a fan; 333-preheating fan flashboard;
341-third gas pipe; 342-an exhaust gas fan; 343-an exhaust gate;
351-a data processing control unit; 352-a temperature measuring component; 353-an exhaust fan; 354-a rotating assembly;
2441-fixing plate; 2442-adjusting suppository; 2443-a first adjustment gear; 2444-a second adjustment gear; 2445-sliding arc groove;
3521-connector; 3522-temperature detection sensor;
3541-preheating a tank opening; 3542-rotating gear; 3543-Transmission gears.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in figure 1, the invention provides a system and a method for controlling the quality of a board by utilizing waste heat, which are used for uniformly distributing air to the edge of a gypsum board, forming effective internal circulation by using single small return air to ensure the stable operation of production, and setting a specific system to adjust the temperature of air injected into a dryer 1 and then transmitting the air, wherein the air at a specific temperature is circulated to improve the production quality of the gypsum board.
The invention comprises a dryer 1, an air box mechanism 2 arranged inside the dryer 1 and a preheating air return system 3 arranged outside the dryer 1, wherein the air box mechanism 2 supplies air to the edge of a gypsum board, the preheating air return system 3 recovers air in the dryer 1, mixes the air with external air, mixes the mixed air to a fixed temperature and conveys the mixed air to the dryer 1.
As shown in fig. 3, the bellows mechanism 2 includes a connection cabin 21 disposed outside the dryer 1, a main ventilation pipe 22 connected to the connection cabin 21, a plurality of auxiliary ventilation pipes 23 connected to the main ventilation pipe 22, and a positioning device 24 connected between the main ventilation pipe 22 and the auxiliary ventilation pipes 23, wherein the positioning device 24 adjusts the angles of the auxiliary ventilation pipes 23, the main ventilation pipe 22 is fixed in this embodiment, and the auxiliary ventilation pipes 23 move along with the positioning device 24 to be parallel to the side edges of the gypsum board, so that the strength of the return air received by the side edges of the gypsum board is consistent.
The main innovation point of the invention is a preheating return air system 3, the air in the preheating return air system 3 mainly recovered in the dryer 1 is mixed with the external air, and the mixing proportion is continuously adjusted in the mixing process to adjust the mixed air to a specific temperature, the preheating return air system 3 mainly adopts the following preferred embodiment, the preheating return air system 3 comprises a first air pipe 31 connected to the connecting cabin 21, a preheater 32 connected to the first air pipe 31, an air inlet module 33 and an air recovery module 34 connected to the preheater 32, and a preheating regulation module 35 arranged in the preheater 32.
The air inlet module 33 sucks external natural air into the preheater 32, the air recovery module 34 recovers the air blown to the tail part of the dryer 1 from the air box mechanism 2 into the preheater 32 for recovery, and the preheating adjusting module 35 forms a dry air body with a fixed temperature by mixing and exchanging the air transported in the air inlet module 33 and the air recovery module 34 and transports the dry air body into the dryer 1 through the ventilation main pipe 22.
In this embodiment, the temperature of the hot air recovered from the tail of the dryer 1 is about 150 ℃, and the hot air and the natural air are mixed in a certain proportion, and then the whole mixed air is exchanged to about 90-95 ℃, and then is conveyed into the dryer 1 through the air box mechanism 2.
The air intake module 33 in this embodiment includes a second air pipe 331 connected to the preheater 32, a preheating fan 332 connected to an end of the second air pipe 331, and a preheating fan shutter 333 connected to an end of the preheating fan 332, where the preheating fan shutter 333 controls an air volume entering the preheater 32 from the preheating fan 332 per unit time, that is, the air volume entering the preheater 32 can be controlled by controlling the preheating fan shutter 333.
The structure of the air recovery module 34 in this embodiment is substantially the same as that of the air intake module 33, the air recovery module 34 includes a third air pipe 341 connected to the preheater 32, and an exhaust gas fan 342 and an exhaust gas shutter 343 connected to the third air pipe 341, one end of the third air pipe 341 is connected to the dryer 1, the third air pipe 341 is communicated with the interior of the dryer 1, the exhaust gas shutter 343 controls the amount of air entering the preheater 32 via the exhaust gas fan 342 in a unit time, and the exhaust gas shutter 343 controls the amount of air entering the preheater 32 from the third air pipe 341, in this embodiment, the temperatures of hot air and natural air are different, the whole temperature of the wind body mixed by the hot wind and the natural wind can be adjusted by adjusting the proportion of the hot wind and the natural wind, that is, the overall temperature of the air body mixed by the hot air and the natural air can be adjusted by controlling the waste gas flashboard 343 and the preheating fan flashboard 333.
The first air pipe 31, the second air pipe 331 and the third air pipe 341 arranged in the invention are all connected to the preheater 32, and the first air pipe 31, the second air pipe 331 and the third air pipe 341 are all embedded in the side wall of the preheater 32.
The most important part in this embodiment is the preheating adjusting module 35, the preheating adjusting module 35 adjusts the mixing ratio of the hot air and the natural air in the preheater 32, the preheating adjusting module 35 in the present invention mainly adopts the following preferred embodiment, the preheating adjusting module 35 includes a data processing control unit 351, a temperature measuring component 352, a rotating component 354, and an exhaust fan 353, the temperature measuring component 352 is disposed in the preheater 32, the rotating component 354 drives the temperature measuring component 352 to rotate so as to adjust the temperature measuring component 352 to a detection state or a gas transmission state, and the exhaust fan 353 is connected to the output end of the preheater 32.
In this embodiment, the temperature measuring component 352 measures the temperature and delivers the gas when the measurement result is consistent with the pre-assumed result, the temperature is detected as a detection state when the temperature is detected, the gas is delivered as a gas delivery state when the gas is delivered, the temperature measuring component 352 detects the temperature of the air after the air is filled in the preheater 32 in the detection state and transmits the detection data to the data processing control unit 351, a threshold value of the temperature of the air is set in the data processing control unit 351, the data processing control unit 351 receives the temperature of the air detected in real time and compares the detection data with the threshold value (the threshold value in this embodiment is set to be about 90-95 ℃), the comparison result is three conditions of between 90-95 ℃ (including 90 ℃ and 95 ℃), less than 90 ℃ or more than 95 ℃), the data processing control unit 351 controls the preheating fan 333 and the waste gas shutter 343 to respectively adjust and control the natural air volume and the hot air volume entering the preheater 32 according to the comparison result, and under the condition that the comparison result is inconsistent (corresponding to the condition that the real-time detection temperature is less than 90 ℃ or more than 95 ℃), controlling the exhaust fan 353 to discharge the gas in the preheater 32 and continue to detect, and circulating the step until the detected temperature is consistent with the threshold value (corresponding to the condition that the real-time detection temperature is between 90 and 95 ℃).
When the real-time detection temperature is between the threshold values, the temperature measuring component 352 is adjusted to the gas transmission state, the exhaust of the exhaust fan 353 is closed, and the gas transmitted by the third gas transmission pipe 341 and the second gas transmission pipe 331 is mixed by the preheater 32 to form a mixed gas of 90-95 ℃, and is transmitted to the air box mechanism 2 through the first gas transmission pipe 31.
The temperature measuring assembly 352 of the present invention mainly adopts the following preferred embodiments, as shown in fig. 2, the temperature measuring assembly 352 includes a connecting cylinder 3521 rotatably disposed in the preheater 32, and a plurality of temperature detecting sensors 3522 disposed in the connecting cylinder 3521, the rotating assembly 354 drives the connecting cylinder 3521 to rotate to adjust the closed state, the semi-connected state, and the fully-connected state of the connecting cylinder 3521, and the temperature detecting sensors 3522 monitor the temperature of the air entering the connecting cylinder 3521 when the connecting cylinder 3521 is in the closed state; wherein, the connecting cylinder 3521 is provided with a perforation communicated with the first air pipe 31, the second air pipe 331 and the third air pipe 341;
in the present embodiment, the temperature detection sensor 3522 is controlled by the data processing control unit 351, the temperature detection sensor 3522 performs the temperature detection operation when the connecting cylinder 3521 is in the closed state, and the temperature detection sensor 3522 stops operating when the connecting cylinder 3521 is in the half-connection state or the full-connection state, mainly because the half-connection state is the case of transmitting the air that has not detected the condition to the outside of the preheater 32, and the full-connection state is the case of transmitting the air that has detected the condition to the inside of the dryer 1, and the temperature detection is not required in the above two cases.
In addition, the closed state and the semi-communication state correspond to a detection state, the full-communication state corresponds to a gas transmission state, the closed state is that the inside of the connecting cylinder 3521 is not communicated with the first gas pipe 31, the second gas pipe 331 and the third gas pipe 341, the semi-communication state is that the inside of the connecting cylinder 3521 is communicated with the second gas pipe 331 and the third gas pipe 341, and the full-communication state is that the inside of the connecting cylinder 3521 is communicated with the first gas pipe 31, the second gas pipe 331 and the third gas pipe 341.
In this embodiment, the first air pipe 31 is provided with a first air transmission hole corresponding to the through hole of the connecting cylinder 3521, the second air pipe 331 is provided with a second air transmission hole corresponding to the through hole of the connecting cylinder 3521, and the third air pipe 341 is provided with a third air transmission hole corresponding to the through hole of the connecting cylinder 3521; in the invention, the exhaust fan 353 is connected with a fourth air pipe to be communicated with the preheater 32, the fourth air pipe is also embedded on the preheater 32, and the fourth air pipe is communicated with the interior of the preheater 32 no matter how the connecting cylinder 3521 rotates, so that an arc groove with a certain length is arranged on the inner wall of the connecting cylinder 3521, and the fourth air pipe is communicated with the interior of the preheater 32 through the arc groove.
The implementation mainly adopts a rotating assembly 354 to drive a connecting cylinder 3521 to rotate, the rotating assembly 354 comprises a preheating tank port 3541 rotatably connected to the head of the preheater 32, a rotating gear 3542 arranged in the preheating tank port 3541 in a clamping manner, a transmission gear 3543 meshed with the rotating gear 3542 and a first driving motor connected to the transmission gear 3543, and the lower end of the rotating gear 3542 is connected with the connecting cylinder 3521.
The first driving motor in this embodiment is controlled by the data processing control unit 351, the first driving motor drives the transmission gear 3543 to rotate, and the transmission gear 3543 rotates to drive the rotating gear 3542 to rotate, so as to drive the connecting cylinder 3521 to rotate.
The invention adjusts the angle of the auxiliary ventilation pipe 23 through the positioning device 24, the positioning device 24 of the invention mainly adopts the following preferred embodiment, as shown in fig. 4, the positioning device 24 comprises a connecting plate 241 connected to the main ventilation pipe 22, an extension pipe 242 connected to the connecting plate 241, an adjusting plate 243 connected to the extension pipe 242, and an adjusting mechanism 244 arranged on the adjusting plate 243, the main ventilation pipe 22 is arranged on the connecting plate 241 in a penetrating way, the auxiliary ventilation pipe 23 is arranged on the adjusting plate 243 in a penetrating way, the main ventilation pipe 22 and the auxiliary ventilation pipe 23 are communicated through the extension pipe 242, the adjusting mechanism 244 controls the rotation of the adjusting plate 243, in the embodiment, a connecting channel is arranged in the default connecting plate 241, so that the main ventilation pipe 22 is communicated with the extension pipe 242.
The angle of the ventilation sub-pipe 23 can be adjusted by adjusting the rotation of the adjusting plate 243, the embodiment adopts the adjusting mechanism 244 to adjust the rotation of the adjusting plate 243 to adjust the angle of the ventilation sub-pipe 23, the adjusting mechanism 244 comprises a fixing plate 2441 arranged on one side of the adjusting plate 243, an adjusting bolt 2442 connected to the adjusting plate 243, a first adjusting gear 2443 connected to one end of the adjusting bolt 2442, a second adjusting gear 2444 engaged on one side of the first adjusting gear 2443, and a second driving motor connected to the second adjusting gear 2444, the first adjusting gear 2443 and the second adjusting gear 2444 are both rotatably arranged on the fixing plate 2441, the adjusting bolt 2442 penetrates through the fixing plate 2441, the adjusting bolt 2442 is connected to the upper edge position of the first adjusting gear 2443, and the fixing plate 2441 is provided with a sliding arc groove 2445 (as shown in fig. 5) for rotating the adjusting bolt 2442.
When the angle of the auxiliary ventilation pipe 23 needs to be adjusted, the second driving motor is driven to drive the second adjusting gear 2444 to rotate, the second adjusting gear 2444 drives the first adjusting gear 2443 to rotate so as to drive the adjusting bolt 2442 to rotate, the adjusting bolt 2442 slides in the sliding arc groove 2445 to drive the adjusting plate 243 to rotate, and the adjusting plate 243 rotates to drive the auxiliary ventilation pipe 23 to adjust the angle.
In this embodiment, we can judge whether the ventilation sub-pipe 23 needs to be angle-adjusted by the distance between the adjusting plate 243 and the side edge of the gypsum board, so we can set an infrared sensor at different positions of the side wall of the adjusting plate 243 to detect the distance between the adjusting plate 243 and the side edge of the gypsum board, when the detected distances are the same, angle adjustment is not needed, when the detected distances are inconsistent, angle adjustment is needed, and the adjustment is performed until the adjusting plate 243 is parallel to the side edge of the gypsum board so that the ventilation sub-pipe 23 is perpendicular to the side edge of the gypsum board.
In summary, as shown in fig. 6, the control method of the system for controlling the quality of the plate material by using waste heat according to the present invention includes the following steps:
step 100, presetting a threshold value of the temperature of the dry air, and injecting the air into the preheater 32 through the air inlet module 33 and the air recovery module 34 for mixing;
step 200, the temperature measuring component 352 monitors the temperature of the mixed air in the preheater 32 in real time and compares the temperature of the mixed air monitored in real time with a threshold value through the data processing control unit 351;
step 300, the data processing control unit 351 repeatedly controls the preheating fan gate plate 333 and the waste gas gate plate 343 to adjust the natural air quantity and the hot air quantity entering the preheater 32 according to the comparison result so as to adjust the mixing ratio of the natural air quantity and the hot air quantity, adjusts the connecting cylinder 3521 to be in a closed state and controls the exhaust fan 353 to exhaust air;
and step 400, repeatedly adjusting the temperature of the mixed air in the preheater 32 to 90-95 ℃ to stop exhausting, and adjusting the connecting cylinder to be in a full-communication state to convey the air into the dryer 1.
The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.
Claims (7)
1. The system for controlling the quality of the board by utilizing the waste heat is characterized by comprising a dryer (1), an air box mechanism (2) arranged inside the dryer (1) and a preheating and air returning system (3) arranged outside the dryer (1), wherein the air box mechanism (2) supplies air for the edge of a gypsum board, the preheating and air returning system (3) recovers an air body in the dryer (1), mixes the air body with an external air body and mixes the mixed air body to a fixed temperature and conveys the mixed air body to the dryer (1);
the air box mechanism (2) comprises a connecting cabin (21) arranged outside the dryer (1), a ventilation main pipe (22) connected to the connecting cabin (21), a plurality of ventilation auxiliary pipes (23) connected to the ventilation main pipe (22), and a position adjusting device (24) connected between the ventilation main pipe (22) and the ventilation auxiliary pipes (23), wherein the position adjusting device (24) is used for adjusting the angles of the ventilation auxiliary pipes (23);
the preheating return air system (3) comprises a first air pipe (31) connected to the connecting cabin (21), a preheater (32) connected to the first air pipe (31), an air inlet module (33) and an air recovery module (34) connected to the preheater (32), and a preheating adjusting module (35) arranged in the preheater (32), wherein the air inlet module (33) pumps external natural air into the preheater (32), and the air recovery module (34) recovers air blown to the tail part of the dryer (1) from the air box mechanism (2) into the preheater (32) for recycling;
wherein the preheating adjusting module (35) forms drying air bodies with fixed temperature by mixing and exchanging the air bodies transported in the air inlet module (33) and the air body recovering module (34) and conveys the drying air bodies into the dryer (1) through the ventilation main pipe (22);
the air inlet module (33) comprises a second air conveying pipe (331) connected to the preheater (32), a preheating fan (332) connected to the end part of the second air conveying pipe (331), and a preheating fan shutter (333) connected to the end part of the preheating fan (332), wherein the preheating fan shutter (333) controls the air volume entering the preheater (32) from the preheating fan (332) in unit time;
the air recovery module (34) comprises a third air conveying pipe (341) connected to the preheater (32), and an exhaust gas fan (342) and an exhaust gas damper (343) connected to the third air conveying pipe (341), wherein one end of the third air conveying pipe (341) is connected to the dryer (1), the third air conveying pipe (341) is communicated with the interior of the dryer (1), and the exhaust gas damper (343) controls the air volume entering the preheater (32) through the exhaust gas fan (342) in unit time;
the preheating adjusting module (35) comprises a data processing control unit (351), a temperature measuring component (352), a rotating component (354) and an exhaust fan (353), the temperature measuring component (352) is arranged in the preheater (32), the rotating component (354) drives the temperature measuring component (352) to rotate so that the temperature measuring component (352) is adjusted to be in a detection state or a gas transmission state, and the exhaust fan (353) is connected to the output end of the preheater (32);
the temperature measuring component (352) detects the temperature of the air body after the air body is fully filled in the preheater (32) based on the detection state, and transmits detection data to the data processing control unit (351), a threshold value of the temperature of the air body is arranged in the data processing control unit (351), the data processing control unit (351) receives the temperature of the air body detected in real time, compares the detection data with the threshold value, controls the preheating fan flashboard (333) and the waste gas flashboard (343) to respectively adjust and control the natural air quantity and the hot air quantity entering the preheater (32) according to a comparison result, and controls the exhaust fan (353) to discharge the gas in the preheater (32) under the condition that the comparison result is inconsistent.
2. The system for controlling the quality of a plate by utilizing the waste heat as claimed in claim 1, wherein the first air delivery pipe (31), the second air delivery pipe (331) and the third air delivery pipe (341) are embedded in the side wall of the preheater (32).
3. A system for controlling a quality of a panel using waste heat as claimed in claim 2, wherein the temperature measuring assembly (352) comprises a connecting cylinder (3521) rotatably installed in the preheater (32), and a plurality of temperature detecting sensors (3522) installed in the connecting cylinder (3521), the rotating assembly (354) rotates the connecting cylinder (3521) to adjust a closed state, a semi-connected state, and a fully-connected state of the connecting cylinder (3521), the temperature detecting sensors (3522) monitor a temperature of wind entering the connecting cylinder (3521) when the connecting cylinder (3521) is in the closed state;
wherein, the connecting cylinder (3521) is provided with a perforation communicated with the first air pipe (31), the second air pipe (331) and the third air pipe (341);
the closed state with half the intercommunication state corresponds to be the detection state, the full intercommunication state corresponds to be the gas transmission state, the closed state does the connecting cylinder (3521) inside not with first gas-supply pipe (31), second gas-supply pipe (331) with third gas-supply pipe (341) intercommunication, half the intercommunication state does connecting cylinder (3521) inside with second gas-supply pipe (331) with third gas-supply pipe (341) intercommunication, the full intercommunication state does connecting cylinder (3521) inside with first gas-supply pipe (31), second gas-supply pipe (331) with third gas-supply pipe (341) intercommunication.
4. A system for controlling panel quality using waste heat according to claim 3, wherein the rotation assembly (354) comprises a preheating tank opening (3541) rotatably connected to the head of the preheater (32), a rotation gear (3542) snap-fitted into the preheating tank opening (3541), a transmission gear (3543) engaged with the rotation gear (3542), and a first driving motor connected to the transmission gear (3543), and the lower end of the rotation gear (3542) is connected to the connection cylinder (3521).
5. The system for controlling the quality of the plate material by using the waste heat as claimed in claim 4, wherein the position adjusting device (24) comprises a connecting plate (241) connected to the ventilation main pipe (22), a telescopic pipe (242) connected to the connecting plate (241), an adjusting plate (243) connected to the telescopic pipe (242), and an adjusting mechanism (244) arranged on the adjusting plate (243), the ventilation main pipe (22) is arranged on the connecting plate (241) in a penetrating manner, the ventilation auxiliary pipe (23) is arranged on the adjusting plate (243) in a penetrating manner, the ventilation main pipe (22) and the ventilation auxiliary pipe (23) are communicated through the telescopic pipe (242), and the adjusting mechanism (244) controls the rotation of the adjusting plate (243).
6. The system for controlling the quality of a panel using waste heat according to claim 5, wherein the adjusting mechanism (244) includes a fixing plate (2441) provided at one side of the adjusting plate (243), an adjusting bolt (2442) connected to the adjusting plate (243), a first adjusting gear (2443) connected to one end of the adjusting bolt (2442), a second adjusting gear (2444) engaged at one side of the first adjusting gear (2443), and a second driving motor connected to the second adjusting gear (2444), the first adjusting gear (2443) and the second adjusting gear (2444) are both rotatably provided on the fixing plate (2441), the adjusting bolt (2442) passes through the fixing plate (2441), and the adjusting bolt (2442) is connected to an upper edge position of the first adjusting gear (2443);
wherein, a sliding arc groove (2445) for rotating the adjusting bolt (2442) is arranged on the fixing plate (2441).
7. A control method of the system for controlling a quality of a plate material using waste heat according to any one of claims 3 to 6, comprising the steps of:
step 100, presetting a threshold value of the temperature of a dry air body, and injecting the air body into a preheater for mixing through an air inlet module and an air body recovery module;
step 200, the temperature measuring component monitors the temperature of the mixed air body in the preheater in real time and compares the temperature of the mixed air body monitored in real time with a threshold value through a data processing control unit;
step 300, the data processing control unit repeatedly controls the preheating fan flashboard and the waste gas flashboard to adjust the natural air quantity and the hot air quantity entering the preheater according to the comparison result so as to adjust the mixing ratio of the natural air quantity and the hot air quantity, adjusts the connecting cylinder to be in a closed state and controls the exhaust fan to exhaust;
and 400, repeatedly adjusting the temperature of the mixed air in the preheater to 90-95 ℃ to stop exhausting, and adjusting the connecting cylinder to be in a full-communication state to convey the air into the dryer.
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| CN106017050A (en) * | 2016-05-23 | 2016-10-12 | 北新集团建材股份有限公司 | Automatic temperature regulating system and method for hot air drier |
| CN109916148A (en) * | 2019-04-08 | 2019-06-21 | 山东交通职业学院 | Cropper residual heat drying system |
| CN111692868A (en) * | 2020-05-06 | 2020-09-22 | 北新集团建材股份有限公司 | Gypsum board drying system and drying method |
| CN212645241U (en) * | 2020-05-06 | 2021-03-02 | 北新集团建材股份有限公司 | Circulating air system of gypsum board drying system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2973708C (en) * | 2017-07-18 | 2024-01-02 | Jorge Diaz | Method for efficient and effective drying. |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017050A (en) * | 2016-05-23 | 2016-10-12 | 北新集团建材股份有限公司 | Automatic temperature regulating system and method for hot air drier |
| CN109916148A (en) * | 2019-04-08 | 2019-06-21 | 山东交通职业学院 | Cropper residual heat drying system |
| CN111692868A (en) * | 2020-05-06 | 2020-09-22 | 北新集团建材股份有限公司 | Gypsum board drying system and drying method |
| CN212645241U (en) * | 2020-05-06 | 2021-03-02 | 北新集团建材股份有限公司 | Circulating air system of gypsum board drying system |
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