Upper cover of gypsum board stirrer

Abstract

The invention relates to the technical field of gypsum board stirring machines, in particular to an upper cover of a gypsum board stirring machine, a dust collecting opening is formed in the upper cover of the gypsum board stirring machine, an exhaust device is rotatably connected to the dust collecting opening, and a water-ring vacuum pump is installed on the upper cover of the gypsum board stirring machine. A dry material port, a stirring water inlet A, a stirring water inlet C and a main water port are further formed in the stirring machine upper cover, the dry material port is used for feeding, the stirring water inlet A is used for cleaning the water ring type vacuum pump, and the exhaust device is arranged, so that on one hand, the problem of guniting of the dust collection port is avoided, and on the other hand, internal gas is exhausted in time; the water ring type vacuum pump is cleaned, so that the problems of abrasion of a stirring rod, abrasion of a rotor, caking in the stirrer and caking of a water ring position are solved.

Description

Technical Field

[0001] The invention relates to the technical field of gypsum board mixers, in particular to an upper cover of a gypsum board mixer. Background Art

[0002] Gypsum board mixer is one of the important equipment for gypsum board production. It can mix water, gypsum powder and various additives and auxiliary materials (starch, raw gypsum, tri-partite, etc.) into a slurry with good fluidity. The mixer is composed of a casing, a cover, a rotor, a stirring rod, and a water ring. The uniformity of the slurry is closely related to the rotor and stirring roller of the mixer. When the rotor and stirring roller are worn, uneven mixing will occur, resulting in a series of quality problems such as large deviation in the unit weight of the board. When the wear is severe, it will cause lumps inside the mixer, resulting in large losses due to paper breakage and shutdown after discharging.

[0003] At present, the feed inlet of the mixer cover is: a dust collecting port and a mixing water port on the front cover, a dry material port and two main water ports for pulp on the rear cover. This feed inlet method will cause the dust collecting port to spray slurry, the water ring position to be seriously lumped, the mixing roller to wear quickly, resulting in uneven mixing of gypsum slurry, paper breakage and shutdown, and reduced production.

[0004] Therefore, how to avoid spraying at the dust collecting port while venting in time, and set up a structure specifically for cleaning the water ring, improve the problems of agitator rod wear, rotor wear, hard lumps inside the mixer, and agglomeration of the water ring position, so as to make the mixer produce efficiently and improve the equipment start-up rate and the qualified rate of finished products has become a technical problem that needs to be urgently solved by technical personnel in this field. Summary of the invention

[0005] The invention provides a gypsum board mixer upper cover, which is used to solve the problem of how to shorten the disinfection and sterilization time and improve the disinfection and sterilization efficiency.

[0006] The present invention provides a gypsum board mixer upper cover, wherein a dust collecting port is provided on the mixer upper cover, an exhaust device is rotatably connected to the dust collecting port, a water ring vacuum pump is installed on the mixer upper cover, and a dry material port, a stirring water inlet A, a stirring water inlet C and a main water inlet are also provided on the mixer upper cover, wherein the dry material port is used for feeding, and the stirring water inlet A is used for cleaning the water ring vacuum pump.

[0007] In some of the embodiments, a stirring water inlet B is provided on the upper cover of the mixer for flushing the stirring roller and the rotor extrusion ring.

[0008] In some of the embodiments, the cleaning solution introduced into the stirring water inlet A is a low-purity substance.

[0009] In some embodiments, a slide groove is provided on the inner wall of the dust collecting port, a first spring is installed on the slide groove, one end of the first spring is connected to a first fixed block, the exhaust device is rotatably connected to the slide groove and fixed by abutting against the first fixed block.

[0010] In some embodiments, the exhaust device comprises:

[0011] The outer shell is rotatably connected to the slide slot, an air outlet passage is provided at the inner bottom of the outer shell, and the upper part is a cavity;

[0012] Sliding rod; the lower part of the sliding rod is slidably connected to the inside of the air outlet channel, and the upper part is slidably connected to the top of the shell;

[0013] The occluding ball is fixedly mounted at the bottom of the slide rod, and the diameter of the occluding ball is larger than the cross-sectional diameter of the air outlet channel;

[0014] Wherein, an air outlet is provided on the upper shell.

[0015] In some embodiments, the cross-sectional diameter of the sliding rod gradually decreases from bottom to top.

[0016] In some embodiments, a plurality of the air outlet holes are provided and are evenly distributed along the circumference of the outer surface of the shell.

[0017] In some embodiments, a first arc-shaped groove is formed on the lower outer surface of the housing, and the first fixing block abuts against the inside of the first arc-shaped groove.

[0018] In some embodiments, a snap-on shell is installed on the top inner side of the outer shell, a second spring is installed inside the snap-on shell, one end of the second spring is connected to a second fixing block, multiple groups of the second spring and the second fixing block are arranged along the inner wall of the snap-on shell, a second arc groove is opened on the sliding rod, and the second fixing block abuts against the inside of the second arc groove.

[0019] In some of the embodiments, a sliding sleeve is provided with a lightweight ball on the sliding rod at the lower side of the snap-on shell, and a screen is tied to the bottom of the shell.

[0020] The beneficial effects of the present invention are as follows: a gypsum board mixer upper cover of the present invention is provided with a stirring water inlet A to clean the water ring vacuum pump, and the solution used for cleaning is a low-purity material solution to prevent the water ring vacuum pump from being corroded and damaged, and an exhaust device is installed on the dust collecting port at the same time, and a screen is used to filter the slurry, and the slide rod is slid downward at the same time to open the air outlet channel, and the gas inside the mixing tank will flow from the air outlet channel to the air outlet to be discharged, which avoids the problem of spraying at the dust collecting port on the one hand, and discharges the internal gas in time on the other hand, and improves the problems of agitator rod wear, rotor wear, hardening inside the mixer, and agglomeration of the water ring seat by cleaning the water ring vacuum pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a gypsum board mixer upper cover from one perspective of the present invention;

[0022] Figure 2 yes Figure 1 A schematic diagram of the local structure of the upper cover A of a gypsum board mixer is shown;

[0023] Figure 3 It is a structural schematic diagram of an exhaust device for an upper cover of a gypsum board mixer according to the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of a lightweight ball in the upper cover of a gypsum board mixer;

[0025] In the attached drawings, 1. upper cover of the mixer; 2. dust collecting port; 3. water ring vacuum pump; 4. dry material port; 5. stirring water inlet A; 6. stirring water inlet B; 7. stirring water inlet C; 8. main water inlet; 9. exhaust device; 901. outer shell; 902. air outlet channel; 903. sliding rod; 904. blocking ball; 905. air outlet; 906. first arc groove; 907. snap-on shell; 908. second spring; 909. second fixed block; 910. second arc groove; 911. light ball; 912. screen; 10. slide groove; 11. first spring; 12. first fixed block. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] As described in the background technology, the feed inlet on the upper cover of the mixer currently used is: a dust collecting port and a stirring water port on the front cover, a dry material port and two main pulp water ports on the rear cover. This type of feed inlet will cause the dust collecting port to spray slurry, the water ring seat to be seriously agglomerated, and the stirring roller to wear quickly, resulting in uneven mixing of gypsum slurry, paper breakage and shutdown, and reduced production. Therefore, how to solve the problem of avoiding slurry spraying at the dust collecting port while venting in time, and setting up a structure specifically for cleaning the water ring, improving the problems of stirring rod wear, rotor wear, hard lumps inside the mixer, and agglomeration of water ring seats, so that the mixer can be produced efficiently and improve the equipment start-up rate and the qualified rate of finished products have become technical problems that need to be solved urgently by technical personnel in this field.

[0028] To solve the above problems, refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The present invention provides a gypsum board mixer cover, wherein a dust collecting port 2 is provided on the mixer cover 1, an exhaust device 9 is rotatably connected to the dust collecting port 2, a water ring vacuum pump 3 is installed on the mixer cover 1, and a dry material port 4, a stirring water inlet A5, a stirring water inlet C7 and a main water inlet 8 are also provided on the mixer cover 1, wherein the dry material port 4 is used for feeding, and the stirring water inlet A5 is used for cleaning the water ring vacuum pump 3;

[0029] Specifically, the feeding method is to connect a reamer device to the dry material port 4, and the feeding is sealed at the dry material port 4. The dust of the dry material entering the mixing tank will not escape through the dry material port 4, but can only escape through the dust collecting port 2. The purpose of the dust collecting port 2 is to release the gas generated during stirring in the mixing tank, while avoiding the release of dust of the dry material and the problem of spraying.

[0030] In some of the embodiments, a stirring water inlet B6 is also provided on the upper cover 1 of the mixer for flushing the stirring roller and the rotor extrusion ring.

[0031] In some of the embodiments, the cleaning solution introduced into the stirring water inlet A5 is a low-purity substance;

[0032] Specifically, the water ring vacuum pump 3 is easy to scale during operation. For scale that is difficult to remove, the cleaning solution enters from the stirring water inlet A5 to clean the water ring vacuum pump 3. The cleaning solution can be selected from diluted nitric acid or other soluble substances, but high-purity substances should not be used to avoid damaging the internal components of the pump. The water ring vacuum pump 3 is soaked in the solution for about an hour, and then rinsed with clean water. The water ring vacuum pump 3 is cleaned regularly to remove the scale inside the pump. When the scale is loose in structure and low in hardness, an online cleaning solution can be adopted, using 10% to 20% citric acid solution as a cleaning agent. For scale with a dense structure and high hardness, a non-online cleaning solution can be adopted, using 7% hydrochloric acid as a cleaning agent for 16 hours, and whether a secondary cleaning is needed is determined according to the actual situation.

[0033] In some embodiments, a slide groove 10 is opened on the inner wall of the dust collecting port 2, and a first spring 11 is installed on the slide groove 10. One end of the first spring 11 is connected to a first fixed block 12. The exhaust device 9 is rotatably connected to the slide groove 10 and fixed by abutting against the first fixed block 12.

[0034] In some embodiments, the exhaust device 9 comprises:

[0035] Shell 901; the shell 901 is rotatably connected to the slide 10, and an air outlet channel 902 is provided at the inner bottom of the shell 901, and the upper part is a cavity;

[0036] Sliding rod 903; the lower portion of the sliding rod 903 is slidably connected to the inside of the air outlet channel 902, and the upper portion is slidably connected to the top of the housing 901;

[0037] The blocking ball 904 is fixedly mounted at the bottom of the slide bar 903, and the diameter of the blocking ball 904 is larger than the cross-sectional diameter of the air outlet channel 902;

[0038] The upper shell 901 is provided with an air outlet 905;

[0039] Specifically, an observation window is provided on the housing 901 .

[0040] In some embodiments, the cross-sectional diameter of the sliding rod 903 gradually decreases from bottom to top;

[0041] Specifically, the sliding rod 903 moves downward and the blocking ball moves downward with the sliding rod, and the air outlet channel can be opened. The further the sliding rod 903 moves downward, the larger the space of the air outlet channel 902 is, and the more gas is discharged per unit time. The user can adjust it according to the actual situation. In addition to the air outlet 905, the observation window can also be used for exhaust.

[0042] In some embodiments, a plurality of the air outlet holes 905 are provided and are evenly distributed along the circumference of the outer surface of the housing 901;

[0043] Specifically, the circumferentially distributed gas outlet holes 905 can quickly and evenly discharge the gas.

[0044] In some embodiments, a first arc-shaped groove 906 is formed on the lower outer surface of the housing 901, and the first fixing block 12 abuts against the inside of the first arc-shaped groove 906;

[0045] In some embodiments, a snap-on shell 907 is installed on the top inner side of the outer shell 901, a second spring 908 is installed inside the snap-on shell 907, one end of the second spring 908 is connected to a second fixing block 909, multiple groups of the second spring 908 and the second fixing block 909 are arranged along the inner wall of the snap-on shell 907, a second arc groove 910 is opened on the sliding rod 903, and the second fixing block 909 abuts against the inside of the second arc groove 910.

[0046] Specifically, no matter to which position the slide bar 903 moves downward, the second fixing block 909 will abut against the corresponding second arc-shaped groove 910 to achieve step-by-step adjustment and maintain the stability of the exhaust.

[0047] In some embodiments, a light ball 911 is slidably sleeved on the slide bar 903 at the lower side of the snap-on shell 907, and a screen 912 is tied to the bottom of the shell 901;

[0048] Specifically, the lightweight ball 911 is hollow at the top and bottom, and is slidably mounted on the slide rod through the arc-shaped position in the middle, thereby reducing the contact area with the slide rod and thus reducing the friction. A very small pressure difference inside and outside the mixing tank can lift up the lightweight ball, making it convenient for the user to observe the exhaust condition from the observation window, while also making it more accurate to display the state of the mixing tank. The screen 912 is fixed in the form of binding, which is convenient for disassembly and replacement. The screen 912 uses a small-aperture mesh, and materials similar to geotextiles can also be used.

[0049] In the description of the present invention, 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 invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0050] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0051] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples" or "some examples" etc. mean 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 invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0053] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A gypsum board mixer cover, characterized in that: The upper cover (1) of the mixer is provided with a dust collecting port (2), and the dust collecting port (2) is rotatably connected to an exhaust device (9). The upper cover (1) of the mixer is provided with a water ring vacuum pump (3). The upper cover (1) of the mixer is also provided with a dry material port (4), a stirring water inlet A (5), a stirring water inlet C (7) and a main water port (8), wherein the dry material port (4) is used for feeding, and the stirring water inlet A (5) is used for cleaning the water ring vacuum pump (3).

2. The upper cover of a gypsum board mixer according to claim 1, characterized in that: The upper cover (1) of the mixer is also provided with a mixing water inlet B (6) for flushing the mixing roller and the rotor extrusion ring.

3. The upper cover of a gypsum board mixer according to claim 1, characterized in that: The cleaning solution introduced into the stirring water inlet A (5) is a low-purity substance.

4. The upper cover of a gypsum board mixer according to claim 1, characterized in that: A slide groove (10) is provided on the inner wall of the dust collecting port (2), a first spring (11) is installed on the slide groove (10), one end of the first spring (11) is connected to a first fixing block (12), and the exhaust device (9) is rotatably connected to the slide groove (10) and is fixed by abutting against the first fixing block (12).

5. The upper cover of a gypsum board mixer according to claim 4, characterized in that: The exhaust device (9) comprises: The outer shell (901) is rotatably connected to the slide groove (10), and an air outlet channel (902) is provided at the inner bottom of the outer shell (901), and the upper part is a cavity; A sliding rod (903); the lower portion of the sliding rod (903) is slidably connected to the inside of the air outlet channel (902), and the upper portion is slidably connected to the top of the housing (901); A blocking ball (904); the blocking ball (904) is fixedly mounted on the bottom of the slide bar (903), and the diameter of the blocking ball (904) is larger than the cross-sectional diameter of the air outlet channel (902); The upper shell (901) is provided with an air outlet (905).

6. The upper cover of a gypsum board mixer according to claim 5, characterized in that: The cross-sectional diameter of the sliding rod (903) gradually decreases from bottom to top.

7. The upper cover of a gypsum board mixer according to claim 5, characterized in that: A plurality of air outlet holes (905) are provided and are evenly distributed along the circumference of the outer surface of the housing (901).

8. The upper cover of a gypsum board mixer according to claim 5, characterized in that: A first arc-shaped groove (906) is provided on the lower outer surface of the housing (901), and the first fixing block (12) abuts against the inside of the first arc-shaped groove (906).

9. The upper cover of a gypsum board mixer according to claim 5, characterized in that: A snap-on shell (907) is installed at the top of the inner side of the outer shell (901), and a second spring (908) is installed inside the snap-on shell (907). One end of the second spring (908) is connected to a second fixing block (909). Multiple groups of the second spring (908) and the second fixing block (909) are arranged along the inner wall of the snap-on shell (907). A second arc groove (910) is opened on the sliding rod (903), and the second fixing block (909) abuts against the inside of the second arc groove (910).

10. The upper cover of a gypsum board mixer according to claim 9, characterized in that: A light ball (911) is slidably sleeved on the slide bar (903) at the lower side of the snap-on shell (907), and a screen (912) is tied to the bottom of the shell (901).

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