CN217802373U - Prevent cracked gypsum board production system - Google Patents
Prevent cracked gypsum board production system Download PDFInfo
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- CN217802373U CN217802373U CN202220080557.0U CN202220080557U CN217802373U CN 217802373 U CN217802373 U CN 217802373U CN 202220080557 U CN202220080557 U CN 202220080557U CN 217802373 U CN217802373 U CN 217802373U
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Abstract
The utility model discloses a gypsum board production system, it includes: a forming table for extrusion-forming the gypsum slurry into a gypsum board; the first paper supply device is used for conveying a lower protective surface paper tape to the forming table; the second paper supply device is used for conveying an upper mask paper tape positioned above the lower mask paper to the forming table; a mixer including a gypsum slurry outlet for outputting a gypsum slurry between the upper and lower facing paper strips before the upper and lower facing paper strips enter the forming table; the forming belt conveyor comprises a belt, and the belt is used for conveying the gypsum board output by the forming table; the dry material conveying component is used for conveying dry materials into the mixing machine, and the conveying speed of the dry materials is in direct proportion to the conveying speed of the forming belt conveyor; and the wet material conveying assembly is used for conveying wet materials into the mixing machine, and the conveying speed of the wet materials is in direct proportion to the conveying speed of the forming belt conveyor.
Description
Technical Field
The utility model relates to a gypsum board production technology, more specifically relates to a gypsum board production system.
Background
In the gypsum board production line, various dry and wet materials are stirred by a mixer to form gypsum slurry, the gypsum slurry is sprayed between an upper protective paper sheet and a lower protective paper sheet, then the gypsum slurry is extruded into a gypsum board with a certain thickness, and then the gypsum board is conveyed to a forming belt conveyor. The addition amount of various dry and wet materials is different in the gypsum board production line under different production speeds.
The existing gypsum board production line needs to determine the use amount of various dry and wet materials according to the production process when the production speed is changed every time, and then the addition of the dry and wet materials is manually controlled, so that the labor amount of manpower is increased, and the mechanization and automation level of the gypsum board production line is low.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the embodiment of the utility model provides a gypsum board production system, it includes:
a forming table for extrusion forming the gypsum slurry into a gypsum board;
the first paper supply device is used for conveying a lower protective surface paper tape to the forming table;
the second paper supply device is used for conveying an upper mask paper tape positioned above the lower mask paper to the forming table;
a mixer including a gypsum slurry outlet for outputting a gypsum slurry between the upper and lower mask paper strips before the upper and lower mask paper strips enter the forming table;
the forming belt conveyor comprises a belt, and the belt is used for conveying the gypsum board output by the forming table;
the dry material conveying component is used for conveying dry materials into the mixing machine, and the conveying speed of the dry materials is in direct proportion to the conveying speed of the forming belt conveyor; and
the wet material conveying assembly is used for conveying wet materials into the mixing machine, and the conveying speed of the wet materials is in direct proportion to the conveying speed of the forming belt conveyor.
In one illustrative embodiment, the dry feed delivery assembly comprises:
the first bin is used for containing the calcined gypsum powder and is provided with a first discharge hole for outputting the calcined gypsum powder;
the first conveyor is connected with the first discharge port and the mixer and is used for conveying the calcined gypsum powder output by the first discharge port into the mixer;
the second storage bin is used for containing starch and is provided with a second discharge hole for outputting the starch;
the second conveyor is connected with the second discharge port and the mixer and is used for conveying the starch output by the second discharge port into the mixer;
the third storage bin is used for containing the coagulant and is provided with a third discharge hole for outputting the coagulant;
the third conveyor is connected with the third discharge port and the mixer and is used for conveying the coagulant output by the third discharge port into the mixer;
the fourth storage bin is used for containing glass fibers and is provided with a fourth discharge hole for outputting the glass fibers; and
the fourth conveyor is connected with the fourth discharge port and the mixer and is used for conveying the glass fibers output by the fourth discharge port into the mixer;
wherein the dry materials comprise calcined gypsum powder, starch, coagulant and glass fiber.
In one exemplary embodiment, the wet feed assembly comprises:
the paper pulp tank is used for containing paper pulp, and the bottom of the paper pulp tank is provided with a paper pulp outlet;
a metered pulp pump in communication with the pulp outlet and the mixer for pumping pulp from the pulp tank to the mixer;
the water tank is used for containing water, and the bottom of the water tank is provided with a first water outlet and a second water outlet; and
and the metering water pump is communicated with the first water outlet and the mixer and is used for pumping the water in the water tank to the mixer.
In an exemplary embodiment, the wet feed assembly further comprises a foaming device for mixing the waterproofing agent, the foaming agent, water and compressed air into a foaming liquid;
the foaming device includes:
a third inlet for inputting a waterproofing agent;
a fourth inlet for inputting a foaming agent;
a fifth inlet for inputting compressed air;
the sixth inlet is communicated with the second water outlet and is used for inputting water; and
and the third outlet is communicated with the mixer and used for conveying the foaming liquid to the mixer.
In one exemplary embodiment, the mixer is a vertical mixer.
In an exemplary embodiment, the first conveyor, the second conveyor, the third conveyor, and the fourth conveyor are each metering conveyors.
In an exemplary embodiment, the first, second, third, and fourth conveyors each have a conveying speed proportional to the conveying speed of the profiled belt conveyor.
In an exemplary embodiment, the speed at which the metering pulp pump, the metering water pump, and the foaming device deliver material to the mixer is proportional to the delivery speed of the forming belt conveyor.
The drier conveying component can automatically convey the drier to the mixing machine, the wet conveying component can automatically convey the wet material to the mixing machine, manual feeding is not needed, and labor cost is saved. And because the adding speeds of the dry and wet materials are in direct proportion with the conveying speed of the forming belt conveyor, the adding speeds of the dry and wet materials do not need to be set manually, and the production quality of the gypsum board can be kept stable.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the embodiments of the present invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention and not to limit the embodiments of the invention.
Fig. 1 is the utility model discloses a gypsum board production system's schematic structure diagram.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
As shown in fig. 1, fig. 1 shows a gypsum board production system. The gypsum board production system comprises a first paper feeding device 3, a second paper feeding device 2, a mixing machine 1, a forming table 4, a forming belt conveyor 5, a dry material conveying assembly and a wet material conveying assembly.
The dry matter delivery assembly is used to deliver dry matter into the mixer 1. The dry materials comprise calcined gypsum powder, starch, coagulant and glass fiber. The dry conveyor material transfer assembly includes a first bin 61, a second bin 62, a third bin 63, a fourth bin 64, a first conveyor 65, a second conveyor 66, a third conveyor 67, and a fourth conveyor 68.
The first bin 61 is for containing the plaster powder. The bottom of the first storage bin 61 is provided with a first discharge hole. The first discharge port is used for outputting the calcined gypsum powder. The first conveyor 65 is disposed below the first hopper 61. The first conveyor 65 is connected to the first discharge port and the mixer 1, and the first conveyor 65 is used for conveying the plaster of paris powder discharged from the first discharge port to the mixer 1.
The second silo 62 is for containing starch. The bottom of the second storage bin 62 is provided with a second discharge hole. The second discharge port is used for outputting starch. A second conveyor 66 is disposed below the second silo 62. The second conveyor 66 is connected to the second discharge port and the mixer 1, and the second conveyor 66 is used for conveying the starch output from the second discharge port to the mixer 1.
The third bin 63 is used for containing coagulant, and a third discharge hole is formed in the bottom of the third bin 63. The third discharge hole is used for outputting coagulant. A third conveyor 67 is disposed below the third silo 63. The third conveyor 67 is connected to the third discharge port and the mixer 1, and the third conveyor 67 is used for conveying the coagulant output from the third discharge port to the mixer 1.
The fourth silo 64 is used to contain glass fibers. The bottom of the fourth bin 64 is provided with a fourth discharge hole. And the fourth discharge hole is used for outputting glass fibers. A fourth conveyor 68 is disposed below the fourth bin 64. A fourth conveyor 68 is connected to the fourth discharge port and the mixer 1, and the fourth conveyor 68 is used for conveying the glass fibers output from the fourth discharge port to the mixer 1.
The wet material conveying assembly is used for conveying wet materials into the mixer 1. The wet material comprises pulp water, a foaming agent, foaming water and a waterproof agent. The wet feed assembly comprises a pulp tank 71, a metered pulp pump 76, a first flow meter 77, a water tank 72, a metered water pump 74, a second flow meter 75 and a foaming device 73.
The pulp tank 71 is for containing pulp. The pulp tank 71 is also provided with a stirring mechanism 711. The stirring mechanism 711 is used to stir the pulp in the pulp tank 71, and prevent fibers in the pulp from settling. The bottom of the pulp tank 71 is provided with a pulp outlet. The metered pulp pump 76 comprises a first inlet and a first outlet. The first inlet is connected to the pulp outlet via a conduit. The first outlet is connected to the mixer 1 via a pipe. The metering pulp pump 76 is used to pump the pulp in the pulp tank 71 to the mixer 1. A first flow meter 77 is arranged on the conduit between the first outlet and the mixer 1. The first flow meter 77 is used to measure the flow rate of the pulp input into the mixer 1.
The water tank 72 is for containing water. The bottom of the water tank 72 is provided with a first water outlet and a second water outlet. The metering water pump 74 includes a second inlet and a second outlet. The second inlet is connected to the first outlet of the water tank 72 through a pipe. The second outlet is connected to the mixer 1 via a pipe. A metering pump 74 is used to pump water from the water tank 72 to the mixer 1. A second flow meter 75 is arranged on the conduit between the second outlet and the mixer 1. The second flow meter 75 is used to measure the flow of water input into the mixer 1.
The foaming device 73 comprises a third inlet, a fourth inlet, a fifth inlet, a sixth inlet and a third outlet. The third inlet is used for inputting a waterproofing agent. The fourth inlet is used for inputting foaming agent. The fifth inlet is used for inputting compressed air. And a sixth inlet connected to the second water outlet of the water tank 72 for inputting water. The third outlet outputs foaming liquid. The waterproofing agent, the foaming agent, water and compressed air are injected into the foaming device 73, the foaming device 73 mixes the waterproofing agent, the foaming agent, the water and the compressed air into a foaming liquid according to a preset proportion, and the foaming liquid is output from the third outlet. The third outlet of the foaming device 73 is connected to the mixer 1 through a pipe, and the foaming liquid is injected into the mixer 1.
The first sheet feeding device 3 feeds out the lower cover paper 31 to the forming table 4. The second sheet feeding device 2 feeds the upper cover web 21 to the forming table 4. On entering the forming table 4, the lower mask web 31 delivered by the first paper supply device 3 is located directly below the upper mask web 21 delivered by the second paper supply device 2.
The mixer 1 is a vertical mixer 1. The calcined gypsum powder, starch, coagulant, glass fiber, paper pulp, water and foaming liquid are conveyed into the mixer 1, and then the mixer 1 mixes the calcined gypsum powder, starch, coagulant, glass fiber, paper pulp, water and foaming liquid into gypsum slurry. The mixer 1 comprises a gypsum slurry outlet for outputting gypsum slurry. The gypsum slurry outlet of the mixer 1 enables the continuous feeding of the gypsum slurry between the upper and lower masking tapes 21, 31 before the upper and lower masking tapes 21, 31 enter the forming table 4.
The forming table 4 is used to press the gypsum slurry between the upper and lower cover paper tapes 21, 31 into a plate-like structure to form an incompletely set gypsum board. The forming table 4 applies pressure to the upper masking tape 21 and the lower masking tape 31 sandwiching the gypsum slurry from the top of the upper masking tape 21 and the bottom of the lower masking tape 31, and can flatten the gypsum slurry to form a gypsum board which is not completely set. The forming table 4 conveys the gypsum board to a forming belt conveyor 5.
The forming belt conveyor 5 is used for conveying gypsum boards. The gypsum board that is not completely set gradually sets during transport. The forming belt conveyor 5 includes a belt, a plurality of drive rollers, and a motor. The belt is configured as an endless loop. A plurality of drive rollers are arranged side by side, and the belt hoop is on a plurality of drive rollers. The drive roller tensions the belt. A belt above the drive rollers is used to carry the plasterboard and moves from the front end to the rear end of the forming belt conveyor 5. The belt under the drive roller moves from the rear end to the front end of the profile belt conveyor 5.
The controller may be a programmable logic controller. The controller is electrically connected to the first conveyor 65, the second conveyor 66, the third conveyor 67, the fourth conveyor 68, the metering pulp pump 76, the first flow meter 77, the metering water pump 74, the second flow meter 75, the foaming device 73, and the forming belt conveyor 5 by cables.
In this embodiment, the first conveyor 65, the second conveyor 66, the third conveyor 67 and the fourth conveyor 68 may be metering conveyors that are capable of conveying material according to a specified conveying speed.
The controller is used for adjusting the conveying speed of the first conveyor 65, the second conveyor 66, the third conveyor 67, the fourth conveyor 68, the metering pulp pump 76, the metering water pump 74 and the foaming device 73 to the mixer 1 according to the conveying speed of the forming belt conveyor 5.
In this embodiment, the conveying speed of the forming belt conveyor 5 is the production speed of the gypsum board production system, and the ratio of the value of the conveying speed of the first conveyor 65 to the value of the conveying speed of the forming belt conveyor 5 is a first proportional coefficient; the ratio of the numerical value of the conveying speed of the second conveyor 66 to the numerical value of the conveying speed of the forming belt conveyor 5 is a second proportionality coefficient; the ratio of the numerical value of the conveying speed of the third conveyor 67 to the numerical value of the conveying speed of the forming belt conveyor 5 is a third proportionality coefficient; the ratio of the numerical value of the conveying speed of the fourth conveyor 68 to the numerical value of the conveying speed of the forming belt conveyor 5 is a fourth proportionality coefficient; the ratio of the numerical value of the conveying speed of the metering pulp pump 76 to the numerical value of the conveying speed of the forming belt conveyor 5 is a fifth proportionality coefficient; the ratio of the numerical value of the conveying speed of the metering water pump 74 to the numerical value of the conveying speed of the forming belt conveyor 5 is a sixth proportionality coefficient; the ratio of the value of the conveying speed of the foaming device 73 to the value of the conveying speed of the molding belt conveyor 5 is a seventh proportionality coefficient. The first scale coefficient, the second scale coefficient, the third scale coefficient, the fourth scale coefficient, the fifth scale coefficient, the sixth scale coefficient and the seventh scale coefficient are all preset positive numbers.
Because the production recipe for gypsum board is determined and the amount of plaster powder, starch, set accelerator, glass fiber, pulp, water, and foaming fluid required per unit length of gypsum board produced is fixed, the rate of production of gypsum board is proportional to the rate of addition of plaster powder, starch, set accelerator, glass fiber, pulp, water, and foaming fluid. The forming belt conveyor 5 has a conveying speed equal to the production speed of gypsum board, and the first proportionality coefficient, the second proportionality coefficient, the third proportionality coefficient, the fourth proportionality coefficient, the fifth proportionality coefficient, the sixth proportionality coefficient and the seventh proportionality coefficient can be predetermined according to the amounts of the calcined gypsum powder, the starch, the coagulant, the glass fiber, the pulp, the water and the foaming liquid required per unit length of gypsum board to be produced.
The controller is configured to:
the conveying speed of the forming belt conveyor 5 is multiplied by a first proportional coefficient to obtain a numerical value of the conveying speed of the first conveyor 65, the numerical value is combined with the unit of the conveying speed of the first conveyor 65 to obtain the conveying speed of the first conveyor 65, and the first conveyor 65 is driven to operate at the conveying speed of the first conveyor 65.
The first conveyor 65 is a conveyor speed for adding the plaster powder to the mixer 1, and the conveyor speed is a predetermined unit, and may be ton/hr.
The controller is further configured to:
the conveying speed of the forming belt conveyor 5 is multiplied by a second proportionality coefficient to obtain a numerical value of the conveying speed of the second conveyor 66, the numerical value is combined with the unit of the conveying speed of the second conveyor 66 to obtain the conveying speed of the second conveyor 66, and the second conveyor 66 is driven to run at the conveying speed of the second conveyor 66.
The second conveyor 66 has a conveying speed, i.e. the speed at which starch is added to the mixer 1, which is in predetermined units and may be in kg/hour.
The controller is further configured to:
the conveying speed of the forming belt conveyor 5 is multiplied by a third proportionality coefficient to obtain a numerical value of the conveying speed of the third conveyor 67, the numerical value is combined with the unit of the conveying speed of the third conveyor 67 to obtain the conveying speed of the third conveyor 67, and the third conveyor 67 is driven to run at the conveying speed of the third conveyor 67.
The speed of the third conveyor 67, which is the speed at which the coagulant is added to the mixer 1, is in predetermined units and may be in kilograms per hour.
The controller is further configured to:
the conveying speed of the forming belt conveyor 5 is multiplied by a fourth proportional coefficient to obtain a numerical value of the conveying speed of the fourth conveyor 68, the numerical value is combined with the unit of the conveying speed of the fourth conveyor 68 to obtain the conveying speed of the fourth conveyor 68, and the fourth conveyor 68 is driven to operate at the conveying speed of the fourth conveyor 68.
The fourth conveyor 68 is fed at a speed in predetermined units, which may be kilograms per hour, to add glass fibers to the mixer 1.
The controller is further configured to:
the conveying speed of the forming belt conveyor 5 is multiplied by a fifth proportionality coefficient to obtain a numerical value of the conveying speed of the metering pulp pump 76, the numerical value is combined with the unit of the conveying speed of the metering pulp pump 76 to obtain the conveying speed of the metering pulp pump 76, and the metering pulp pump 76 is driven to operate at the conveying speed of the fifth conveyor.
The delivery rate of the metered pulp pump 76, which is the rate of addition of pulp to the mixer 1, is in units of predetermined units and may be liters per hour.
The controller is further configured to:
the conveying speed of the molding belt conveyor 5 is multiplied by a sixth scaling factor to obtain a value of the conveying speed of the metering water pump 74, the value is combined with the unit of the conveying speed of the metering water pump 74 to obtain the conveying speed of the metering water pump 74, and the metering water pump 74 is driven to operate at the conveying speed of the metering water pump 74.
The delivery rate of the metering pump 74, which is the rate of addition of water to the mixer 1, is in predetermined units and may be liters per hour.
The controller is further configured to:
the conveying speed of the forming belt conveyor 5 is multiplied by a seventh proportional coefficient to obtain a numerical value of the conveying speed of the foaming device 73, the numerical value is combined with the unit of the conveying speed of the foaming device 73 to obtain the conveying speed of the foaming device 73, and the foaming device 73 is driven at the conveying speed of the foaming device 73 to convey the foaming liquid to the mixer 1.
The conveying speed of the foaming device 73 is the speed of adding the foaming liquid to the mixer 1, and the unit of the conveying speed is a preset unit and can be liter/hour.
In the present embodiment, the conveying speed of the forming belt conveyor 5 may be adjusted within a range of 0 to 80 m/min, but no matter to which speed the conveying speed of the forming belt conveyor 5 is adjusted, the controller may multiply the conveying speed of the forming belt conveyor 5 by a plurality of proportionality coefficients to obtain the conveying speeds of the first conveyor 65, the second conveyor 66, the third conveyor 67, the fourth conveyor 68, the metering pulp pump 76, the first flowmeter 77, the metering water pump 74, the second flowmeter 75, and the foaming device 73, respectively, and then convey the corresponding raw materials to the mixer 1 at the conveying speeds of the first conveyor 65, the second conveyor 66, the third conveyor 67, the fourth conveyor 68, the metering pulp pump 76, the first flowmeter 77, the metering water pump 74, the second flowmeter 75, and the foaming device 73 without manually adding various types of raw materials, or manually setting the operating speeds of the first conveyor 65, the second conveyor 66, the third conveyor 67, the fourth conveyor 68, the metering pulp pump 76, the first flowmeter 74, the second flowmeter 75, and the foaming device 73, and the convenient and convenient operation of the flowmeter. And because the adding speed of various raw materials is in direct proportion with the conveying speed of the forming belt conveyor 5, the production quality of the gypsum board can be kept stable.
In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", "mouth" word structure "and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the structure referred to has a specific direction, is constructed and operated in a specific direction, and thus, cannot be construed as limiting the present invention.
In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected," "directly connected," "indirectly connected," "fixedly connected," "mounted," and "assembled" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; the terms "mounted," "connected," and "fixedly connected" may refer to a direct connection, an indirect connection through intervening media, and a connection between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Although the embodiments of the present invention have been described above, the description is only for the convenience of understanding the present invention, and the present invention is not limited thereto. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A gypsum board production system, comprising:
a forming table for extrusion forming the gypsum slurry into a gypsum board;
a first paper supply device for conveying a lower facing paper tape to the forming table;
the second paper supply device is used for conveying an upper mask paper tape positioned above the lower mask paper to the forming table;
a mixer including a gypsum slurry outlet for outputting a gypsum slurry between the upper and lower facing paper strips before the upper and lower facing paper strips enter the forming table;
the forming belt conveyor comprises a belt, and the belt is used for conveying the gypsum board output by the forming table;
the dry material conveying component is used for conveying dry materials into the mixing machine, and the conveying speed of the dry materials is in direct proportion to the conveying speed of the forming belt conveyor; and
the wet material conveying assembly is used for conveying wet materials into the mixing machine, and the conveying speed of the wet materials is in direct proportion to the conveying speed of the forming belt conveyor.
2. A gypsum board production system as set forth in claim 1, wherein said dry matter delivery assembly comprises:
the first bin is used for containing the calcined gypsum powder and is provided with a first discharge hole for outputting the calcined gypsum powder;
the first conveyor is connected with the first discharge port and the mixer and is used for conveying the calcined gypsum powder output by the first discharge port into the mixer;
the second storage bin is used for containing starch and is provided with a second discharge hole for outputting the starch;
the second conveyor is connected with the second discharge port and the mixer and is used for conveying the starch output by the second discharge port into the mixer;
the third storage bin is used for containing the coagulant and is provided with a third discharge hole for outputting the coagulant;
the third conveyor is connected with the third discharge port and the mixer and is used for conveying the coagulant output by the third discharge port into the mixer;
the fourth storage bin is used for containing glass fibers and is provided with a fourth discharge hole for outputting the glass fibers; and
and the fourth conveyor is connected with the fourth discharge port and the mixer and is used for conveying the glass fibers output by the fourth discharge port into the mixer.
3. The gypsum board production system of claim 1, wherein the wet feed conveyor assembly comprises:
the paper pulp tank is used for containing paper pulp, and the bottom of the paper pulp tank is provided with a paper pulp outlet;
a metered pulp pump in communication with the pulp outlet and the mixer for pumping pulp from the pulp tank to the mixer;
the water tank is used for containing water, and the bottom of the water tank is provided with a first water outlet and a second water outlet; and
and the metering water pump is communicated with the first water outlet and the mixer and is used for pumping the water in the water tank to the mixer.
4. The gypsum board production system of claim 3, wherein the wet feed assembly further comprises a foaming device;
the foaming device includes:
a third inlet for inputting a waterproofing agent;
a fourth inlet for inputting a foaming agent;
a fifth inlet for inputting compressed air;
the sixth inlet is communicated with the second water outlet and is used for inputting water; and
and the third outlet is communicated with the mixer and used for conveying the foaming liquid to the mixer.
5. The gypsum board production system of claim 1, wherein the mixer is a vertical mixer.
6. The gypsum board production system of claim 2, wherein the first conveyor, the second conveyor, the third conveyor, and the fourth conveyor are each metering conveyors.
7. The gypsum board production system of claim 2, wherein the conveying speeds of the first, second, third and fourth conveyors are all proportional to the conveying speed of the forming belt conveyor.
8. The gypsum board production system of claim 4, wherein the metering pulp pump, the metering water pump, and the foaming device all feed material to the mixer at a rate proportional to the feed rate of the forming belt conveyor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220080557.0U CN217802373U (en) | 2022-01-12 | 2022-01-12 | Prevent cracked gypsum board production system |
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| CN202220080557.0U CN217802373U (en) | 2022-01-12 | 2022-01-12 | Prevent cracked gypsum board production system |
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