Mixing device and gypsum board production system

Abstract

The embodiment of the invention provides a mixing device and a gypsum board production system, and the mixing device comprises a mixing tank which is provided with a material inlet and a material outlet; the slurry input pipe is connected with the material inlet so as to input slurry into the mixing tank; the material input pipe is connected to the slurry input pipe so as to input a predetermined material to the slurry input pipe, and the predetermined material is arranged to be mixed with the slurry input by the slurry input pipe; and the stirring mechanism is used for stirring and mixing the slurry input into the mixing tank and preset materials. According to the technical scheme provided by the invention, the slurry and the phase-change material particles can be effectively mixed, non-uniform distribution caused by low density of the to-be-mixed material is avoided, and the structure of the to-be-mixed material is not damaged.

Description

Technical Field

[0001] The present invention relates to the technical field of gypsum board production, and in particular to a mixing device and a gypsum board production system. Background Art

[0002] Gypsum board is environmentally friendly, soundproof, heat-insulating, fireproof, non-toxic, moisture-resistant, and waterproof. It also offers excellent comfort, making it a widely used and essential material in modern interior decoration. Currently, integrating phase change materials with gypsum board to impart energy storage and heat release capabilities is a key research direction and aligns with national policies promoting carbon neutrality and peak carbon emissions.

[0003] While gypsum board offers many advantages, its production is complex. The main production process involves calcining raw gypsum to produce gypsum, grinding the gypsum to produce the gypsum powder needed for production. This gypsum powder is then fed into a mixer, where starch, glass fiber, water, foaming agent, setting regulator, waterproofing agent, water reducer, and other additives are added to create a gypsum slurry. The slurry is then spread between two layers of paper, which are then folded and sealed to adhere. The slurry sets initially and finally on a forming machine belt, and is then cut into slabs of a desired length. The slabs are then dried in a kiln to remove excess moisture, sealed, and packaged to produce the finished gypsum board.

[0004] There are many types of phase change materials used to produce phase change gypsum boards. Among them, a phase change material (such as paraffin) is adsorbed in the cavities of mineral particles through mineral loading, and then the mineral particles are coated to obtain a phase change material. Due to the internal pores of the mineral particles, the density of the mineral particles is less than that of water. In addition, the density of paraffin is also less than that of water. Finally, the density of the loaded phase change material particles is also less than that of water. Experiments have shown that the loaded phase change material particles basically float on the water surface. If the loaded phase change material particles are directly added to the mixer for stirring, although the stirring is relatively uniform, the structural strength of the loaded phase change material particles is very poor. After being impacted by the high-speed stirring of the mixer, the loaded phase change material particles will be broken, resulting in the leakage of the phase change material (paraffin), which affects the energy storage effect of the product. If the loaded phase change material particles are directly sprinkled on the surface of the slurry and then stirred, the loaded phase change material particles will be difficult to integrate into the interior of the slurry due to the low density of the loaded phase change material particles, and finally the loaded phase change material particles in the slurry will be unevenly distributed, with more on the upper part of the slurry and less on the lower part. After spraying on the gypsum board paper, during the period until the final setting, the loaded phase change material particles will migrate upward due to the buoyancy of the loaded phase change material particles due to the low density and lightness, resulting in more on the front side of the gypsum board (i.e. the upper part of the slurry) and less on the bottom side of the gypsum board (i.e. the lower part of the slurry), which will eventually affect the overall performance of the gypsum board product. Summary of the Invention

[0005] The embodiments of the present application provide a mixing device and a gypsum board production system to solve the problem of difficulty in mixing slurry and phase change material particles in the current phase change gypsum board production process.

[0006] An embodiment of the present application provides a mixing device, comprising:

[0007] A mixing tank is provided with an inlet and an outlet;

[0008] a slurry input pipe connected to the feed inlet to input slurry into the mixing tank;

[0009] a material input pipe connected to the slurry input pipe to input a predetermined material into the slurry input pipe, wherein the predetermined material is configured to be mixed with the slurry input from the slurry input pipe;

[0010] The stirring mechanism is configured to stir and mix the slurry input into the mixing tank and the predetermined material.

[0011] In one embodiment, the material input pipe is arranged to form an acute angle with the slurry input pipe, and the acute angle is toward the flow direction of the slurry in the slurry input pipe.

[0012] In one embodiment, an air jet mechanism is provided on the material input pipe, and the air jet mechanism is configured to spray air into the material input pipe and downward.

[0013] In one embodiment, a water spraying mechanism is provided on the material input pipe, and the water spraying mechanism is configured to spray water into the material input pipe.

[0014] In one embodiment, a plurality of openings are circumferentially spaced apart on the material input pipe, and the water spraying mechanism includes a water spraying assembly corresponding to each of the openings and a water supply pipe connected to the plurality of the water spraying assemblies, and the water supply pipe supplies water to the plurality of the water spraying assemblies.

[0015] In one embodiment, the water spray assembly includes a tee pipe, a water spray pipe, and a control valve;

[0016] The two connecting ends of the tee are connected to the water supply pipe, and the water supply pipe connects multiple tees. The other connecting end of the tee is connected to the control valve, and the control valve is connected to the water spray pipe. The water spray pipe sprays water into the material input pipe through the opening, and the control valve is configured to control the water flow of the water spray pipe.

[0017] In one embodiment, the opening includes a fixed port provided on the outer portion of the pipe wall of the material input pipe and a jet port provided on the inner portion, the water spray assembly is inserted into the fixed port, and water is sprayed toward the jet port through the water supply pipe, the tee pipe, the control valve, the water spray pipe and the fixed port; wherein the jet port is configured as a flat port that gradually expands outward in a direction toward the inside of the material input pipe, and the flat port is inclined downward.

[0018] In one embodiment, the mixing device further includes a discharge pipe connected to the discharge port of the mixing tank, wherein the discharge pipe is provided with a plurality of disturbance blocks arranged at intervals along the discharge direction, and the slurry flowing out of the mixing tank flows through the disturbance blocks during the flow of the discharge pipe.

[0019] In one embodiment, the plurality of disturbance blocks include one or more of semicircular plates, inclined plates, and triangular plates;

[0020] Among them, one semicircular end of the semicircular plate is fixed on the tube wall of the discharge pipe, and the other end is inclined toward the flow direction; the inclined plate is erected on the tube wall and inclined relative to the flow direction, and the triangular plate is set with the corner facing away from the flow direction.

[0021] In one embodiment, the discharge pipe includes a plurality of S-shaped pipe sections connected in sequence.

[0022] An embodiment of the present application further provides a gypsum board production system, comprising a lower paper laying device for laying gypsum board lower paper, an upper paper laying device for laying gypsum board upper paper above gypsum slurry, a slurry mixer, and the mixing device as described above;

[0023] The slurry mixer is configured to be connected to the slurry input pipe to input slurry into the mixing device. The predetermined material input by the material input pipe is phase change particles. The mixing device is configured to sprinkle slurry onto the bottom paper of the laid gypsum board.

[0024] In one embodiment, the mixing device is configured to be detachably connected to the slurry mixer; when the mixing device is connected to the slurry mixer, the mixing device is configured to sprinkle slurry onto the paper under the gypsum board; when the mixing device is detached from the slurry mixer, the slurry mixer is configured to sprinkle slurry onto the paper under the gypsum board.

[0025] In the technical solution provided in the present application, the slurry is transported to the slurry input pipe, and the predetermined material enters the slurry input pipe through the material input pipe, so that the predetermined material and the slurry are mixed for the first time in the slurry input pipe, and then enter the mixing tank for secondary mixing through the stirring mechanism, which can facilitate the sufficient mixing of the predetermined material and the slurry.

[0026] The mixing device provided in the present application can be applied to the mixing of phase change gypsum board slurry. Since the slurry needs to be continuously laid on the bottom paper of the gypsum board during the production process of the gypsum board, the equipment for mixing the slurry generally mixes the slurry while outputting the slurry. The slurry needs to be mixed efficiently. The equipment currently used for mixing the slurry mixes the slurry evenly by high-speed stirring to achieve simultaneous input and output. The mixing device provided in the present application can mix the phase change particles and the slurry twice. The stirring mechanism of the mixing device can mix the slurry evenly by low-speed stirring, which can avoid the problem of phase change particles being broken by high-speed stirring. In addition, the solution adopted in the present application is to mix the phase change particles and the slurry in the material input pipe for the first time, and then the slurry is carried into the mixing tank together with the phase change particles for secondary mixing, which can solve the problem that the phase change particles are easy to float on the surface due to their low density. Therefore, the use of the mixing device provided in the present application to mix the phase change particles and the slurry to obtain the phase change gypsum board slurry can ensure the performance of the produced phase change gypsum board.

[0027] Other features and advantages of the present application will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present application. Other advantages of the present application can be realized and obtained by the solutions described in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide an understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0029] Figure 1 This is a structural diagram of the connection between a mixing device and a slurry mixer according to an embodiment of the present application;

[0030] Figure 2 A schematic structural diagram of an application of a mixing device to a gypsum board production system according to one embodiment of the present application;

[0031] Figure 3 Based on Figure 2 A schematic top view of a portion of the structure shown;

[0032] Figure 4 In one embodiment according to the present application Figure 1 Schematic diagram of the installation of the structure shown on the mounting frame;

[0033] Figure 5 for Figure 4 Schematic diagram of the structure in the K direction;

[0034] Figure 6 for Figure 4 a top view of the structure shown;

[0035] Figure 7 for Figure 6 Schematic diagram of the structure cut along FF;

[0036] Figure 8 for Figure 7 Schematic diagram of the structure cut along the PP;

[0037] Figure 9 for Figure 4 Enlarged view of point A in the middle;

[0038] Figure 10 for Figure 9 Enlarged view of point C in the middle;

[0039] Figure 11 for Figure 9 The structure shown in FIG is a schematic diagram of the structure viewed from the Q direction;

[0040] Figure 12 for Figure 4 Enlarged view of point B in the middle.

[0041] Description of reference numerals:

[0042] 1- slurry mixer; 101- fixed frame; 102- rotating frame; 103- driving mechanism; 1031- driving motor; 1032- transmission belt; 1033- pulley; 1034- driving shaft; 2- mixing device; 201- mixing tank; 202- slurry inlet pipe; 203- material inlet pipe; 2031- injection port; 2032- fixed port; 204- feeding hopper; 205- injection mechanism; 2051- nozzle; 206- water spray assembly; 2061- tee pipe; 2062- water spray pipe; 2063- fixing nut; 2064- control valve; 207- stirring drive mechanism; 2071- rotating shaft; 2072- motor; 2073- transmission Belt; 2074-pulley; 208-stirring component; 209-discharge pipe; 2091-semicircular plate; 2092-inclined plate; 2093-triangular plate; 210-discharge control valve; 211-water supply pipe; 212-air supply pipe; 3-mounting frame; 301-first mounting frame; 302-second mounting frame; 303-panel support frame; 3031-panel; 304-discharge pipe bracket; 4-conveyor device; 5-lower paper laying device; 501-lower paper winding machine; 502-lower paper pulling-out device; 503-indentation device; 6-upper paper laying device; 601-upper paper winding machine; 602-upper paper pulling-out device; P1-gypsum board lower paper; P2-gypsum board upper paper. DETAILED DESCRIPTION

[0043] This application describes multiple embodiments, but this description is exemplary rather than restrictive, and it is obvious to those skilled in the art that there may be more embodiments and implementations within the scope of the embodiments described in this application. Although many possible feature combinations are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are also possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with any other feature or element in any other embodiment, or may replace any other feature or element in any other embodiment.

[0044] The present application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features, and elements disclosed in this application may also be combined with any conventional features or elements to form a unique inventive solution. Any features or elements of any embodiment may also be combined with features or elements from other inventive solutions to form another unique inventive solution. Therefore, it should be understood that any feature shown and / or discussed in this application may be implemented individually or in any appropriate combination. Therefore, except for the limitations made according to the appended claims and their equivalents, the embodiments are not subject to other limitations. In addition, various modifications and changes may be made within the scope of protection of the appended claims.

[0045] In addition, when describing representative embodiments, the specification may have presented the method and / or process as a specific sequence of steps. However, to the extent that the method or process does not rely on the specific order of the steps described herein, the method or process should not be limited to the steps in the specific order described. As will be understood by those skilled in the art, other orders of steps are also possible. Therefore, the specific order of the steps set forth in the specification should not be interpreted as a limitation to the claims. In addition, the claims for the method and / or process should not be limited to performing their steps in the order written, and those skilled in the art can readily understand that these orders can be changed and still remain within the spirit and scope of the embodiments of the present application.

[0046] The embodiment of the present application provides a mixing device 2, such as Figures 1-12 As shown, the mixing device 2 includes a mixing tank 201, a slurry input pipe 202, a material input pipe 203 and a stirring mechanism.

[0047] The mixing tank 201 is provided with an inlet and an outlet; the slurry input pipe 202 is connected to the inlet to input slurry into the mixing tank 201; the material input pipe 203 is connected to the slurry input pipe 202 to input predetermined material into the slurry input pipe 202, and the predetermined material is configured to be mixed with the slurry input into the slurry input pipe 202; the stirring mechanism is configured to stir and mix the slurry input into the mixing tank and the predetermined material.

[0048] In the technical solution provided in the present application, the slurry is transported to the slurry input pipe 202 (for example, the slurry mixer 1 is connected to the slurry input pipe 202 to transport the slurry through the slurry mixer 1), and the predetermined material enters the slurry input pipe 202 through the material input pipe 203, so that the predetermined material and the slurry are mixed for the first time in the slurry input pipe 202, and then enter the mixing tank 201 for secondary mixing through the stirring mechanism, which can facilitate the sufficient mixing of the predetermined material and the slurry.

[0049] In the case where slurry and predetermined materials are input into the inlet of the mixing tank 201 and the mixed slurry is output from the outlet at the same time, that is, the mixing tank 201 is inputting materials and discharging materials at the same time, the mixing mechanism alone cannot fully mix the predetermined materials with the slurry, so that the mixed slurry output from the mixing tank 201 is unevenly mixed. However, with the mixing device provided by the present application, the materials are first mixed once when entering the slurry input pipe 202 and then mixed a second time after entering the mixing tank 201. The two mixing processes can ensure that the mixed slurry output from the mixing tank 201 is uniform.

[0050] The mixing device 2 provided in the present application can be applied to the mixing of phase change gypsum board slurry. Since the slurry needs to be continuously laid on the bottom paper of the gypsum board during the production process of the gypsum board, the equipment for mixing the slurry generally outputs the slurry while mixing the slurry. The slurry needs to be mixed efficiently. The equipment currently used for mixing the slurry is to mix the slurry evenly by high-speed stirring to achieve simultaneous feeding and discharging. The mixing device provided in the present application can mix the phase change particles and the slurry twice. The stirring mechanism of the mixing device 2 can mix them evenly by low-speed stirring, which can avoid the problem of phase change particles being broken due to high-speed stirring. In addition, the solution adopted in the present application is to mix the phase change particles and the slurry in the material input pipe for the first time, and then the slurry is carried along with the phase change particles into the mixing tank 201 for secondary mixing, which can solve the problem that the phase change particles are easily floated on the surface due to their low density. Therefore, the mixing device 2 provided in the present application is used to mix the phase change particles and the slurry to obtain the phase change gypsum board slurry, which can ensure the performance of the produced phase change gypsum board.

[0051] In one embodiment, a discharge pipe 209 connected to the discharge port of the mixing tank 201 may be provided with a discharge control valve 210 , and the discharge is controlled by the discharge control valve 210 .

[0052] When the slurry just flows into the mixing tank 201, the discharge control valve 210 can be in a closed state. The predetermined material and the slurry continue to flow into the mixing tank 201 and are stirred and mixed by the stirring mechanism until the slurry level in the mixing tank 201 reaches a certain height. The discharge control valve 210 opens. At this time, the total flow rate of the slurry and the predetermined material entering the mixing tank 201 matches the flow rate of the discharge port of the mixing tank 201. From then on, the discharge control valve 210 is always in an open state, that is, the mixing tank 201 is feeding and discharging at the same time, so that the mixed slurry can be continuously output.

[0053] The discharge control valve 210 can be an automatic pneumatic pipeline control valve, although other control valve structures may also be used. The automatic pneumatic pipeline control valve utilizes a cylinder structure, wherein a piston rod in the cylinder structure is connected to a pipeline valve core. The piston rod drives the pipeline valve core to rise and fall, thereby controlling the opening and closing of the pipeline. The pneumatic pipeline control valve may also include a piston adjustment rod for adjusting the piston, thereby adjusting the position of the pipeline valve core in the cylinder through the piston, thereby controlling the elevation of the pipeline valve core, thereby achieving control of the pipeline flow rate. Adjusting the discharge flow rate through the discharge control valve 210 can ensure that the output flow rate of the mixing tank 201 is consistent with the input flow rate.

[0054] In one embodiment, Figure 1 As shown, the material input pipe 203 is arranged at an acute angle α with the slurry input pipe 202, with the acute angle oriented toward the flow direction of the slurry in the slurry input pipe 202. Thus, the flow direction of the predetermined material upon entering the slurry input pipe 202 is consistent with the conveying direction of the slurry in the slurry input pipe 202. The predetermined material can flow smoothly into the mixing tank 201 under the influence of the slurry without hindering the flow of the slurry, thereby increasing the feeding speed of the mixing tank 201. The acute angle α can be between 30° and 80°.

[0055] In one embodiment, in order to facilitate the input of predetermined materials into the material input pipe 203 , a hopper 204 may be further provided at the top of the material input pipe 203 .

[0056] In one embodiment, Figure 1 As shown, an air jet mechanism 205 is provided on the material input pipe 203 , and the air jet mechanism 205 is configured to spray air into the material input pipe 203 and downward. Figure 4 and Figure 12The installation structure of the jet mechanism 205 is shown. The jet mechanism 205 is connected to the air supply pipe 212. The connecting pipe of the jet mechanism 205 extends into the interior of the material input pipe 203 through the opening on the material input pipe 203. The nozzle 2051 of the jet mechanism 205 is set downward in the material input pipe 203. The nozzle 2051 sprays downward so that the predetermined material to be mixed (such as phase change particles) is impacted into the slurry of the slurry input pipe 202 under the drive of the airflow. Moreover, since the material input pipe 203 and the slurry input pipe 202 are set at an acute angle α, the airflow carrying the predetermined material enters the slurry input pipe 202 and its flow direction is consistent with the flow direction of the slurry, which can accelerate the flow of the slurry. The predetermined material, such as phase change particles, that is continuously added to the slurry input pipe 202 is sprayed into the continuously flowing slurry under the action of the airflow, which can reduce the overlapping accumulation of the phase change particles at the same part, thereby making the phase change particles more evenly distributed in the slurry.

[0057] In one embodiment, a water spraying mechanism is provided on the material input pipe 203, and the water spraying mechanism is configured to spray water into the material input pipe 203. The water sprayed by the water spraying mechanism wets the outer surface of the phase change particles, making them easier to be integrated into the slurry.

[0058] Figure 4 and Figures 9-11 The figure shows the installation of a water spray mechanism on a material input pipe 203. The material input pipe 203 is provided with a plurality of openings spaced circumferentially. The water spray mechanism includes a water spray assembly 206 corresponding to each opening and a water supply pipe 211 connected to the plurality of water spray assemblies 206. The water supply pipe 211 is configured to supply water to the plurality of water spray assemblies 206.

[0059] exist Figures 9-11 In the example, the water spray assembly 206 includes a tee pipe 2061, a water spray pipe 2062 and a control valve 2064. The two connecting ends of the tee pipe 2061 are connected to the water supply pipe 211. The water supply pipe 211 connects multiple tee pipes 2061. The other connecting end of the tee pipe 2061 is connected to the control valve 2064. The control valve 2064 is connected to the water spray pipe 2062. The water spray pipe 2062 sprays water into the material input pipe 203 through the opening on the material input pipe 203. The control valve 2064 is configured to control the water flow of the water spray pipe 2062 and to open and close the water spray.

[0060] refer to Figure 10 and Figure 11The opening on the material input pipe 203 for the water spraying assembly 206 to spray water includes a fixed port 2032 set on the outer part of the pipe wall of the material input pipe 203 and a jet port 2031 set on the inner part. The water spraying assembly 206 is inserted into the fixed port 2032 for fixation. Water passes through the water supply pipe 211, the three-way pipe 2061, the control valve 2064, the water spraying pipe 2062 and the fixed port 2032, and is sprayed toward the jet port 2031. The water is sprayed into the material input pipe 203 from the jet port 2031. Figure 10 The figure shows that the water spray pipe 2062 of the water spray assembly 206 extends into the fixed port 2032 and is locked to the material input pipe 203 by the fixing nut 2063. The spray port 2031 is configured as a flat opening (roughly fan-shaped) that gradually expands toward the interior of the material input pipe 203. The flat opening is tilted downward. The fan-shaped water mist has a large area, and the downward spray can accelerate the falling speed of the material.

[0061] In one embodiment, a stirring mechanism for stirring the slurry input into the mixing tank 201 includes a stirring member 208 located in the mixing tank 201 and a stirring drive mechanism 207 for driving the stirring member 208 to rotate. The stirring member 208 can adopt various structural forms, such as an impeller or a plurality of stirring rods arranged on a rotating shaft 2071. The stirring drive mechanism 207 can include a rotating shaft 2071, a motor 2072, a transmission belt 2073, and two pulleys 2074. The rotating shaft 2071 is connected to the stirring member 208. The motor 2072 is configured to drive one of the pulleys 2074 to rotate. Under the transmission action of the transmission belt 2073, the other pulley 2074 drives the rotating shaft 2071 to rotate, so that the stirring member 208 can rotate to stir.

[0062] The installation structure of the stirring drive mechanism 207 is shown in FIG. Figure 4 and Figure 5 As shown, the lower end of the rotating shaft 2071 located inside the mixing tank 201 is connected to the stirring member 208, and the upper end located outside the mixing tank 201 is rotatably supported on the mounting frame 3 via a bearing. To ensure the stability of the rotating shaft 2071, two bearings can be provided on the mounting frame 3 at intervals along the height direction. The installation of the rotating shaft 2071 by two bearings can improve the rotational stability.

[0063] In one embodiment, the mixing device further includes a discharge pipe 209 connected to the discharge port of the mixing tank 201. The discharge pipe 209 is provided with a plurality of disturbance blocks spaced apart along the discharge direction. The slurry mixed in the mixing tank 201 flows through the disturbance blocks during its flow in the discharge pipe 209. When the slurry flows through the disturbance blocks, eddies and turbulence are generated, changing the stable state of the slurry and achieving the effect of stirring the slurry to further mix the slurry.

[0064] The plurality of disturbance blocks may include one or more of a semicircular plate 2091, an inclined plate 2092, and a triangular plate 2093. Figure 6-Figure 8 In the example, three types of disturbance blocks are provided in the discharge pipe 209, namely, a semicircular plate 2091, an inclined plate 2092, and a triangular plate 2093. The semicircular plate 2091, the inclined plate 2092, and the triangular plate 2093 can be arranged in a cycle in sequence. One semicircular end of the semicircular plate 2091 is fixed on the wall of the discharge pipe 209, and the other end is inclined toward the flow direction, so that the slurry flowing along the wall of the pipe can be disturbed along the semicircular plate away from the side wall when it flows to the semicircular plate 2091; the inclined plate 2092 is fixed upright on the pipe wall and is inclined relative to the flow direction, so that the slurry can be squeezed to one side from a steady state during the flow process, thereby generating another disturbance when passing through the inclined plate 2092; the triangular plate 2093 is set with the corner facing away from the flow direction, and the slurry can be divided into two streams after passing through the triangular plate 2093, respectively impacting the side walls on both sides. Therefore, by providing a variety of disturbance blocks, a variety of disturbances can be generated when the slurry flows in the discharge pipe 209 .

[0065] exist Figure 6-Figure 8 In the example, the discharge pipe 209 includes a plurality of S-shaped pipe segments connected in sequence. By setting up a plurality of S-shaped pipe segments to connect and form the discharge pipe 209, the discharge pipe 209 can have a longer length while reducing the occupied space. In addition, the discharge pipe 209 is provided with a plurality of bends, and the slurry passing through the bends will also generate eddies and turbulence, thereby stirring the slurry and making the slurry mixed more evenly.

[0066] refer to Figure 4 and Figure 5 As shown, the inlet of the mixing tank 201 is higher than the outlet, and the discharge pipe 209 is set to gradually decrease from one end connected to the mixing tank 201 to the other end, so that the mixed slurry can flow out more easily under the action of gravity.

[0067] The embodiment of the present application also provides a gypsum board production system, such as Figure 2 As shown, the apparatus comprises a lower paper placement device 5 for placing gypsum board lower paper P1, an upper paper placement device 6 for placing gypsum board upper paper P2 on top of the gypsum slurry, a slurry mixer, and the aforementioned mixing device. The slurry mixer 1 is configured to be connected to a slurry input pipe 202 for inputting slurry into the mixing device 2. The predetermined material inputted through the material input pipe 203 is phase change particles. The mixing device 2 is configured to spread the slurry onto the laid gypsum board lower paper P1.

[0068] exist Figure 2In the gypsum board production system shown in FIG, the lower paper laying device 5 includes a lower paper reel 501, a lower paper pulling device 502, and an indentation device 503; the upper paper laying device 6 includes an upper paper reel 601 and an upper paper pulling device 602; the gypsum board production system may further include a conveying device 4; the lower paper pulling device 502 pulls the gypsum board lower paper P1 from the lower paper reel 501 and lays it on the conveying device 4; wherein, the gypsum board lower paper P1 between the conveying device 4 and the lower paper reel 501 passes through the panel 30 31 (not shown in the figure, refer to the description in the above embodiment), the slurry output by the mixing device 2 is spread on the gypsum board lower paper P1 supported on the panel 3031, and the gypsum board upper paper P21 pulled out from the upper paper winder 601 by the upper paper pulling device 602 is laid on the slurry on the gypsum board lower paper P1, so that the slurry is sandwiched between the two layers of paper, and the upper and lower papers are folded and sealed to make the upper and lower papers stick together, and then the upper and lower papers and the slurry laid in the middle are pulled by the conveyor belt of the conveying device 4 for transportation.

[0069] In one embodiment, the mixing device 2 is configured to be detachably connected to the slurry mixer 1; when the mixing device 2 is connected to the slurry mixer 1, the mixing device 2 is configured to spread slurry onto the bottom paper P1 of the gypsum board; when the mixing device 2 is detached from the slurry mixer 1, the slurry mixer 1 is configured to spread slurry onto the bottom paper P1 of the gypsum board.

[0070] When producing non-phase-change gypsum board without phase-change particles, the mixing device 2 can be disassembled from the slurry mixer 1, so that the slurry mixed by the slurry mixer 1 is directly spread on the gypsum board bottom paper P1. When producing phase-change gypsum board, the mixing device 2 is connected to the slurry mixer 1, and the slurry containing the material to be mixed output by the mixing device 2 is spread on the gypsum board bottom paper P1.

[0071] Figure 4-Figure 6 The figure shows the installation structure of the slurry mixer 1 and the mixing device 2 on the mounting frame 3 in one embodiment. In this embodiment, the mounting frame 3 includes a first mounting frame 301, a second mounting frame 302, a third mounting frame 303, and a fourth mounting frame 304. The mixing device 2 is mounted on the second mounting frame 302, the slurry mixer 1 is mounted on the first mounting frame 301, the third mounting frame 303 (i.e., the panel support frame) is configured to support the panel 3031, and the panel 3031 is used to lay the gypsum board bottom paper P1 thereon. The fourth mounting frame 304 (i.e., the discharge pipe support) is configured to support the discharge pipe used to spread the slurry on the gypsum board bottom paper P1.

[0072] refer to Figure 6The second mounting frame 302 for mounting the mixing device 2 is mounted on one side of a panel 3031 for supporting the gypsum board bottom paper P1. When phase-change gypsum board production is not required (i.e., mixing of phase-change particles is not required), the second mounting frame 302 and the mixing device 2 mounted thereon can be removed from the gypsum board production line. Another suitable discharge pipe can be connected to the discharge end of the slurry mixer 1 and aligned with the middle position of the gypsum board bottom paper P1, so that the slurry mixed by the slurry mixer 1 can be directly spread on the gypsum board bottom paper P1. When phase-change gypsum board production is required, the second mounting frame 302 and the mixing device 2 mounted thereon are installed in place, and the slurry input pipe 202 of the mixing device 2 is connected to the discharge end of the slurry mixer 1.

[0073] exist Figure 4-Figure 5 In the embodiment, the slurry mixer 1 includes a shell fixed on a first mounting frame 301 for containing slurry, a fixed frame 101 mounted on the shell, and a rotating frame 102 that rotates relative to the fixed frame 101. A plurality of fixed sticks are fixed on the fixed frame 101, and a plurality of moving sticks are fixed on the rotating frame 102. The plurality of moving sticks and the plurality of fixed sticks are inserted into the space between each other. The rotating frame 102 is connected to a drive shaft 1034 of a driving mechanism 103. The driving mechanism 103 includes a driving motor 1031, a transmission belt 1032, and two pulleys 1033. One pulley 1033 driven by the driving motor 1031 drives the other pulley 1033 to rotate via the transmission belt 1032, so that the other pulley 1033 drives the driving shaft 1034 to drive the rotating frame 102 to rotate. After materials (e.g., gypsum powder, water, starch, glass fiber, foaming agent, water reducer, setting agent, etc.) are introduced into the housing of the slurry mixer 1, the rotating frame 102 rotates with the multiple moving rods to achieve slurry mixing. The relative movement of the rotating frame 102 and the fixed frame 101, thereby coordinating the multiple moving rods with the multiple fixed rods to achieve slurry mixing, is a common technique used by those skilled in the art and will not be described in detail here. Of course, the slurry mixer 1 can also utilize other stirring mechanisms to achieve gypsum slurry mixing.

[0074] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0075] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly specify the quantity of the technical features being referred to. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include at least one of the features.

[0076] In the description of the present application, “a plurality of” means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0077] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, "connected" can mean fixed connection, detachable connection, or integration; it can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0078] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it can mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0079] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0080] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A mixing device, characterized in that: include: A mixing tank is provided with an inlet and an outlet; a slurry input pipe connected to the feed inlet to input slurry into the mixing tank; a material input pipe connected to the slurry input pipe to input a predetermined material into the slurry input pipe, wherein the predetermined material is configured to be mixed with the slurry input from the slurry input pipe; The stirring mechanism is configured to stir and mix the slurry input into the mixing tank and the predetermined material.

2. The mixing device according to claim 1, characterized in that The material input pipe is arranged to form an acute angle with the slurry input pipe, and the included angle of the acute angle is toward the flow direction of the slurry in the slurry input pipe.

3. The mixing device according to claim 1, characterized in that The material input pipe is provided with an air jet mechanism, and the air jet mechanism is configured to spray air into the material input pipe and downward.

4. The mixing device according to claim 1, characterized in that The material input pipe is provided with a water spraying mechanism, and the water spraying mechanism is configured to spray water into the material input pipe.

5. The mixing device according to claim 4, characterized in that The material input pipe is provided with a plurality of openings at intervals along the circumferential direction. The water spraying mechanism includes a water spraying assembly corresponding to each of the openings and a water supply pipe connected to the plurality of the water spraying assemblies. The water supply pipe supplies water to the plurality of the water spraying assemblies.

6. The mixing device according to claim 5, characterized in that The water spray assembly includes a tee pipe, a water spray pipe, and a control valve; The two connecting ends of the tee are connected to the water supply pipe, and the water supply pipe connects multiple tees. The other connecting end of the tee is connected to the control valve, and the control valve is connected to the water spray pipe. The water spray pipe sprays water into the material input pipe through the opening, and the control valve is configured to control the water flow of the water spray pipe.

7. The mixing device according to claim 5, characterized in that The opening includes a fixed port arranged on the outer portion of the pipe wall of the material input pipe and a jet port arranged on the inner portion. The water spray assembly is inserted into the fixed port, and water is sprayed toward the jet port through the water supply pipe, the tee pipe, the control valve, the water spray pipe and the fixed port; wherein the jet port is arranged to be a flat port that gradually expands outward in the direction toward the inside of the material input pipe, and the flat port is inclined downward.

8. The mixing device according to any one of claims 1 to 7, characterized in that It also includes a discharge pipe connected to the discharge port of the mixing tank, wherein a plurality of disturbance blocks are arranged at intervals along the discharge direction, and the slurry flowing out of the mixing tank flows through the disturbance blocks during the flow of the discharge pipe.

9. The mixing device according to claim 8, characterized in that The plurality of disturbance blocks include one or more of a semicircular plate, an inclined plate, and a triangular plate; Among them, one semicircular end of the semicircular plate is fixed on the tube wall of the discharge pipe, and the other end is inclined toward the flow direction; the inclined plate is upright fixed on the tube wall and inclined relative to the flow direction, and the triangular plate is set with the corner facing away from the flow direction.

10. The mixing device according to claim 5, characterized in that The discharge pipe includes a plurality of S-shaped pipe sections connected in sequence.

11. A gypsum board production system, characterized in that: It comprises a lower paper laying device for laying the lower paper of the gypsum board, an upper paper laying device for laying the upper paper of the gypsum board above the gypsum slurry, a slurry mixer and a mixing device as claimed in any one of claims 1 to 10; The slurry mixer is configured to be connected to the slurry input pipe to input slurry into the mixing device. The predetermined material input by the material input pipe is phase change particles. The mixing device is configured to sprinkle slurry onto the bottom paper of the laid gypsum board.

12. The gypsum board production system according to claim 11, characterized in that The mixing device is configured to be detachably connected to the slurry mixer; When the mixing device is connected to the slurry mixer, the mixing device is configured to sprinkle slurry onto the lower paper layer of the gypsum board; when the mixing device is removed from the slurry mixer, the slurry mixer is configured to sprinkle slurry onto the lower paper layer of the gypsum board.

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